From 07bf7908950a8b14e81aa1807e3c667eab39287a Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Wed, 1 Aug 2018 13:45:11 +0200 Subject: [PATCH 0001/1762] xfrm: Validate address prefix lengths in the xfrm selector. We don't validate the address prefix lengths in the xfrm selector we got from userspace. This can lead to undefined behaviour in the address matching functions if the prefix is too big for the given address family. Fix this by checking the prefixes and refuse SA/policy insertation when a prefix is invalid. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: Air Icy Signed-off-by: Steffen Klassert --- net/xfrm/xfrm_user.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 33878e6e0d0a..5151b3ebf068 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -151,10 +151,16 @@ static int verify_newsa_info(struct xfrm_usersa_info *p, err = -EINVAL; switch (p->family) { case AF_INET: + if (p->sel.prefixlen_d > 32 || p->sel.prefixlen_s > 32) + goto out; + break; case AF_INET6: #if IS_ENABLED(CONFIG_IPV6) + if (p->sel.prefixlen_d > 128 || p->sel.prefixlen_s > 128) + goto out; + break; #else err = -EAFNOSUPPORT; @@ -1359,10 +1365,16 @@ static int verify_newpolicy_info(struct xfrm_userpolicy_info *p) switch (p->sel.family) { case AF_INET: + if (p->sel.prefixlen_d > 32 || p->sel.prefixlen_s > 32) + return -EINVAL; + break; case AF_INET6: #if IS_ENABLED(CONFIG_IPV6) + if (p->sel.prefixlen_d > 128 || p->sel.prefixlen_s > 128) + return -EINVAL; + break; #else return -EAFNOSUPPORT; From f623f75ae443d0c771635d51cc986b9d389bf631 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 14 Aug 2018 00:35:24 +0200 Subject: [PATCH 0002/1762] rfkill-gpio: include linux/mod_devicetable.h One more driver is apparently broken by the recent change to linux/platform_device.h: net/rfkill/rfkill-gpio.c: In function 'rfkill_gpio_acpi_probe': net/rfkill/rfkill-gpio.c:82:29: error: dereferencing pointer to incomplete type 'const struct acpi_device_id' Include linux/mod_devicetable.h to get the definition of the acpi_device_id structure. Fixes: ac3167257b9f ("headers: separate linux/mod_devicetable.h from linux/platform_device.h") Signed-off-by: Arnd Bergmann Signed-off-by: Johannes Berg --- net/rfkill/rfkill-gpio.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c index 00192a996be0..0f8465852254 100644 --- a/net/rfkill/rfkill-gpio.c +++ b/net/rfkill/rfkill-gpio.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include From 77cfaf52eca5cac30ed029507e0cab065f888995 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= Date: Mon, 13 Aug 2018 14:16:25 +0200 Subject: [PATCH 0003/1762] mac80211: Run TXQ teardown code before de-registering interfaces MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The TXQ teardown code can reference the vif data structures that are stored in the netdev private memory area if there are still packets on the queue when it is being freed. Since the TXQ teardown code is run after the netdevs are freed, this can lead to a use-after-free. Fix this by moving the TXQ teardown code to earlier in ieee80211_unregister_hw(). Reported-by: Ben Greear Tested-by: Ben Greear Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: Johannes Berg --- net/mac80211/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/main.c b/net/mac80211/main.c index fb73451ed85e..0358f20b675f 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -1182,6 +1182,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw) #if IS_ENABLED(CONFIG_IPV6) unregister_inet6addr_notifier(&local->ifa6_notifier); #endif + ieee80211_txq_teardown_flows(local); rtnl_lock(); @@ -1210,7 +1211,6 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw) skb_queue_purge(&local->skb_queue); skb_queue_purge(&local->skb_queue_unreliable); skb_queue_purge(&local->skb_queue_tdls_chsw); - ieee80211_txq_teardown_flows(local); destroy_workqueue(local->workqueue); wiphy_unregister(local->hw.wiphy); From c066fafc595eef5ae3c83ae3a8305956b8c3ef15 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Tue, 14 Aug 2018 20:37:45 +1000 Subject: [PATCH 0004/1762] KVM: PPC: Book3S HV: Use correct pagesize in kvm_unmap_radix() Since commit e641a317830b ("KVM: PPC: Book3S HV: Unify dirty page map between HPT and radix", 2017-10-26), kvm_unmap_radix() computes the number of PAGE_SIZEd pages being unmapped and passes it to kvmppc_update_dirty_map(), which expects to be passed the page size instead. Consequently it will only mark one system page dirty even when a large page (for example a THP page) is being unmapped. The consequence of this is that part of the THP page might not get copied during live migration, resulting in memory corruption for the guest. This fixes it by computing and passing the page size in kvm_unmap_radix(). Cc: stable@vger.kernel.org # v4.15+ Fixes: e641a317830b (KVM: PPC: Book3S HV: Unify dirty page map between HPT and radix) Signed-off-by: Paul Mackerras --- arch/powerpc/kvm/book3s_64_mmu_radix.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index 176f911ee983..7efc42538ccf 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -738,10 +738,10 @@ int kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, gpa, shift); kvmppc_radix_tlbie_page(kvm, gpa, shift); if ((old & _PAGE_DIRTY) && memslot->dirty_bitmap) { - unsigned long npages = 1; + unsigned long psize = PAGE_SIZE; if (shift) - npages = 1ul << (shift - PAGE_SHIFT); - kvmppc_update_dirty_map(memslot, gfn, npages); + psize = 1ul << shift; + kvmppc_update_dirty_map(memslot, gfn, psize); } } return 0; From 1a4327fbf4554d5b78d75b19a13d40d6de220159 Mon Sep 17 00:00:00 2001 From: Kirill Kapranov Date: Mon, 13 Aug 2018 19:48:10 +0300 Subject: [PATCH 0005/1762] spi: fix IDR collision on systems with both fixed and dynamic SPI bus numbers On systems where some controllers get a dynamic ID assigned and some have a fixed number (e.g. from ACPI tables), the current implementation might run into an IDR collision: in case of a fixed bus number is gotten by a driver (but not marked busy in IDR tree) and a driver with dynamic bus number gets the same ID and predictably fails. Fix this by means of checking-in fixed IDsin IDR as far as dynamic ones at the moment of the controller registration. Fixes: 9b61e302210e (spi: Pick spi bus number from Linux idr or spi alias) Signed-off-by: Kirill Kapranov Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/spi/spi.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index ec395a6baf9c..a00d006d4c3a 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -2170,6 +2170,15 @@ int spi_register_controller(struct spi_controller *ctlr) if (WARN(id < 0, "couldn't get idr")) return id; ctlr->bus_num = id; + } else { + /* devices with a fixed bus num must check-in with the num */ + mutex_lock(&board_lock); + id = idr_alloc(&spi_master_idr, ctlr, ctlr->bus_num, + ctlr->bus_num + 1, GFP_KERNEL); + mutex_unlock(&board_lock); + if (WARN(id < 0, "couldn't get idr")) + return id == -ENOSPC ? -EBUSY : id; + ctlr->bus_num = id; } INIT_LIST_HEAD(&ctlr->queue); spin_lock_init(&ctlr->queue_lock); From 484004339d4514fde425f6e8a9f6a6cc979bb0c3 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 15 Aug 2018 18:17:03 +0200 Subject: [PATCH 0006/1762] mac80211_hwsim: require at least one channel Syzbot continues to try to create mac80211_hwsim radios, and manages to pass parameters that are later checked with WARN_ON in cfg80211 - catch another one in hwsim directly. Reported-by: syzbot+2a12f11c306afe871c1f@syzkaller.appspotmail.com Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 18e819d964f1..fe1b0108f06d 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -3194,6 +3194,11 @@ static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info) if (info->attrs[HWSIM_ATTR_CHANNELS]) param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]); + if (param.channels < 1) { + GENL_SET_ERR_MSG(info, "must have at least one channel"); + return -EINVAL; + } + if (param.channels > CFG80211_MAX_NUM_DIFFERENT_CHANNELS) { GENL_SET_ERR_MSG(info, "too many channels specified"); return -EINVAL; From 4769c003e0fcff0ee001a9102e2605bdaa5880f0 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 8 Aug 2018 01:07:03 -0700 Subject: [PATCH 0007/1762] ARM: OMAP2+: Fix null hwmod for ti-sysc debug We may call omap_hwmod_parse_module_range() with no hwmod allocated yet and may have debug enabled. Let's fix this by checking for hwmod before trying to use it's name. Fixes: 6c72b3550672 ("ARM: OMAP2+: Parse module IO range from dts for legacy Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/omap_hwmod.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 2ceffd85dd3d..7f759abcf49c 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -2220,7 +2220,7 @@ int omap_hwmod_parse_module_range(struct omap_hwmod *oh, size = be32_to_cpup(ranges); pr_debug("omap_hwmod: %s %s at 0x%llx size 0x%llx\n", - oh->name, np->name, base, size); + oh ? oh->name : "", np->name, base, size); res->start = base; res->end = base + size - 1; From 1dbcb97c656eed1a244c960b8b3a469c3d20ce7b Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 8 Aug 2018 01:07:04 -0700 Subject: [PATCH 0008/1762] ARM: OMAP2+: Fix module address for modules using mpu_rt_idx If we use device tree data for a module interconnect target we want to map the control registers from the module start. Legacy hwmod platform data however is using child IP offsets for cpsw module with mpu_rt_idx. In cases where we have the interconnect target module already using device tree data with legacy hwmod platform data still around, the sysc register area is not adjusted for mpu_rt_idx causing wrong registers being accessed. Let's fix the issue for mixed dts and platform data mode by ioremapping the module registers using child IP offset if mpu_rt_idx is set. For device tree only data there's no reason to use mpu_rt_idx. Fixes: 6c72b3550672 ("ARM: OMAP2+: Parse module IO range from dts for legacy "ti,hwmods" support") Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/omap_hwmod.c | 37 ++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 7f759abcf49c..cd65ea4e9c54 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -2160,6 +2160,37 @@ static int of_dev_hwmod_lookup(struct device_node *np, return -ENODEV; } +/** + * omap_hwmod_fix_mpu_rt_idx - fix up mpu_rt_idx register offsets + * + * @oh: struct omap_hwmod * + * @np: struct device_node * + * + * Fix up module register offsets for modules with mpu_rt_idx. + * Only needed for cpsw with interconnect target module defined + * in device tree while still using legacy hwmod platform data + * for rev, sysc and syss registers. + * + * Can be removed when all cpsw hwmod platform data has been + * dropped. + */ +static void omap_hwmod_fix_mpu_rt_idx(struct omap_hwmod *oh, + struct device_node *np, + struct resource *res) +{ + struct device_node *child = NULL; + int error; + + child = of_get_next_child(np, child); + if (!child) + return; + + error = of_address_to_resource(child, oh->mpu_rt_idx, res); + if (error) + pr_err("%s: error mapping mpu_rt_idx: %i\n", + __func__, error); +} + /** * omap_hwmod_parse_module_range - map module IO range from device tree * @oh: struct omap_hwmod * @@ -2222,6 +2253,12 @@ int omap_hwmod_parse_module_range(struct omap_hwmod *oh, pr_debug("omap_hwmod: %s %s at 0x%llx size 0x%llx\n", oh ? oh->name : "", np->name, base, size); + if (oh && oh->mpu_rt_idx) { + omap_hwmod_fix_mpu_rt_idx(oh, np, res); + + return 0; + } + res->start = base; res->end = base + size - 1; res->flags = IORESOURCE_MEM; From 0ef8e3bb974af56346b34393e643d491d9141c66 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 8 Aug 2018 01:07:05 -0700 Subject: [PATCH 0009/1762] bus: ti-sysc: Fix module register ioremap for larger offsets We can have the interconnect target module control registers pretty much anywhere within the module range. The current code attempts an incomplete optimization of the ioremap size but does it wrong and it only works for registers at the beginning of the module. Let's just use the largest control register to calculate the ioremap size. The ioremapped range is for most part cached anyways so there is no need for size optimization. Let's also update the comments accordingly. Fixes: 0eecc636e5a2 ("bus: ti-sysc: Add minimal TI sysc interconnect target driver") Signed-off-by: Tony Lindgren --- drivers/bus/ti-sysc.c | 29 +++++++++++++---------------- 1 file changed, 13 insertions(+), 16 deletions(-) diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index 80d60f43db56..b31bf03ea497 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -490,32 +490,29 @@ static int sysc_check_registers(struct sysc *ddata) /** * syc_ioremap - ioremap register space for the interconnect target module - * @ddata: deviec driver data + * @ddata: device driver data * * Note that the interconnect target module registers can be anywhere - * within the first child device address space. For example, SGX has - * them at offset 0x1fc00 in the 32MB module address space. We just - * what we need around the interconnect target module registers. + * within the interconnect target module range. For example, SGX has + * them at offset 0x1fc00 in the 32MB module address space. And cpsw + * has them at offset 0x1200 in the CPSW_WR child. Usually the + * the interconnect target module registers are at the beginning of + * the module range though. */ static int sysc_ioremap(struct sysc *ddata) { - u32 size = 0; + int size; - if (ddata->offsets[SYSC_SYSSTATUS] >= 0) - size = ddata->offsets[SYSC_SYSSTATUS]; - else if (ddata->offsets[SYSC_SYSCONFIG] >= 0) - size = ddata->offsets[SYSC_SYSCONFIG]; - else if (ddata->offsets[SYSC_REVISION] >= 0) - size = ddata->offsets[SYSC_REVISION]; - else + size = max3(ddata->offsets[SYSC_REVISION], + ddata->offsets[SYSC_SYSCONFIG], + ddata->offsets[SYSC_SYSSTATUS]); + + if (size < 0 || (size + sizeof(u32)) > ddata->module_size) return -EINVAL; - size &= 0xfff00; - size += SZ_256; - ddata->module_va = devm_ioremap(ddata->dev, ddata->module_pa, - size); + size + sizeof(u32)); if (!ddata->module_va) return -EIO; From 8ecebf4d767e2307a946c8905278d6358eda35c3 Mon Sep 17 00:00:00 2001 From: Robbie Ko Date: Mon, 6 Aug 2018 10:30:30 +0800 Subject: [PATCH 0010/1762] Btrfs: fix unexpected failure of nocow buffered writes after snapshotting when low on space Commit e9894fd3e3b3 ("Btrfs: fix snapshot vs nocow writting") forced nocow writes to fallback to COW, during writeback, when a snapshot is created. This resulted in writes made before creating the snapshot to unexpectedly fail with ENOSPC during writeback when success (0) was returned to user space through the write system call. The steps leading to this problem are: 1. When it's not possible to allocate data space for a write, the buffered write path checks if a NOCOW write is possible. If it is, it will not reserve space and success (0) is returned to user space. 2. Then when a snapshot is created, the root's will_be_snapshotted atomic is incremented and writeback is triggered for all inode's that belong to the root being snapshotted. Incrementing that atomic forces all previous writes to fallback to COW during writeback (running delalloc). 3. This results in the writeback for the inodes to fail and therefore setting the ENOSPC error in their mappings, so that a subsequent fsync on them will report the error to user space. So it's not a completely silent data loss (since fsync will report ENOSPC) but it's a very unexpected and undesirable behaviour, because if a clean shutdown/unmount of the filesystem happens without previous calls to fsync, it is expected to have the data present in the files after mounting the filesystem again. So fix this by adding a new atomic named snapshot_force_cow to the root structure which prevents this behaviour and works the following way: 1. It is incremented when we start to create a snapshot after triggering writeback and before waiting for writeback to finish. 2. This new atomic is now what is used by writeback (running delalloc) to decide whether we need to fallback to COW or not. Because we incremented this new atomic after triggering writeback in the snapshot creation ioctl, we ensure that all buffered writes that happened before snapshot creation will succeed and not fallback to COW (which would make them fail with ENOSPC). 3. The existing atomic, will_be_snapshotted, is kept because it is used to force new buffered writes, that start after we started snapshotting, to reserve data space even when NOCOW is possible. This makes these writes fail early with ENOSPC when there's no available space to allocate, preventing the unexpected behaviour of writeback later failing with ENOSPC due to a fallback to COW mode. Fixes: e9894fd3e3b3 ("Btrfs: fix snapshot vs nocow writting") Signed-off-by: Robbie Ko Reviewed-by: Filipe Manana Signed-off-by: David Sterba --- fs/btrfs/ctree.h | 1 + fs/btrfs/disk-io.c | 1 + fs/btrfs/inode.c | 25 ++++--------------------- fs/btrfs/ioctl.c | 16 ++++++++++++++++ 4 files changed, 22 insertions(+), 21 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 318be7864072..a67cc190a84b 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1280,6 +1280,7 @@ struct btrfs_root { int send_in_progress; struct btrfs_subvolume_writers *subv_writers; atomic_t will_be_snapshotted; + atomic_t snapshot_force_cow; /* For qgroup metadata reserved space */ spinlock_t qgroup_meta_rsv_lock; diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 5124c15705ce..05dc3c17cb62 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1187,6 +1187,7 @@ static void __setup_root(struct btrfs_root *root, struct btrfs_fs_info *fs_info, atomic_set(&root->log_batch, 0); refcount_set(&root->refs, 1); atomic_set(&root->will_be_snapshotted, 0); + atomic_set(&root->snapshot_force_cow, 0); root->log_transid = 0; root->log_transid_committed = -1; root->last_log_commit = 0; diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 3f51ddc18f98..c6d8c5d19ff0 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1271,7 +1271,7 @@ static noinline int run_delalloc_nocow(struct inode *inode, u64 disk_num_bytes; u64 ram_bytes; int extent_type; - int ret, err; + int ret; int type; int nocow; int check_prev = 1; @@ -1403,11 +1403,8 @@ next_slot: * if there are pending snapshots for this root, * we fall into common COW way. */ - if (!nolock) { - err = btrfs_start_write_no_snapshotting(root); - if (!err) - goto out_check; - } + if (!nolock && atomic_read(&root->snapshot_force_cow)) + goto out_check; /* * force cow if csum exists in the range. * this ensure that csum for a given extent are @@ -1416,9 +1413,6 @@ next_slot: ret = csum_exist_in_range(fs_info, disk_bytenr, num_bytes); if (ret) { - if (!nolock) - btrfs_end_write_no_snapshotting(root); - /* * ret could be -EIO if the above fails to read * metadata. @@ -1431,11 +1425,8 @@ next_slot: WARN_ON_ONCE(nolock); goto out_check; } - if (!btrfs_inc_nocow_writers(fs_info, disk_bytenr)) { - if (!nolock) - btrfs_end_write_no_snapshotting(root); + if (!btrfs_inc_nocow_writers(fs_info, disk_bytenr)) goto out_check; - } nocow = 1; } else if (extent_type == BTRFS_FILE_EXTENT_INLINE) { extent_end = found_key.offset + @@ -1448,8 +1439,6 @@ next_slot: out_check: if (extent_end <= start) { path->slots[0]++; - if (!nolock && nocow) - btrfs_end_write_no_snapshotting(root); if (nocow) btrfs_dec_nocow_writers(fs_info, disk_bytenr); goto next_slot; @@ -1471,8 +1460,6 @@ out_check: end, page_started, nr_written, 1, NULL); if (ret) { - if (!nolock && nocow) - btrfs_end_write_no_snapshotting(root); if (nocow) btrfs_dec_nocow_writers(fs_info, disk_bytenr); @@ -1492,8 +1479,6 @@ out_check: ram_bytes, BTRFS_COMPRESS_NONE, BTRFS_ORDERED_PREALLOC); if (IS_ERR(em)) { - if (!nolock && nocow) - btrfs_end_write_no_snapshotting(root); if (nocow) btrfs_dec_nocow_writers(fs_info, disk_bytenr); @@ -1532,8 +1517,6 @@ out_check: EXTENT_CLEAR_DATA_RESV, PAGE_UNLOCK | PAGE_SET_PRIVATE2); - if (!nolock && nocow) - btrfs_end_write_no_snapshotting(root); cur_offset = extent_end; /* diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index d3a5d2a41e5f..85c4284bb2cf 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -747,6 +747,7 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir, struct btrfs_pending_snapshot *pending_snapshot; struct btrfs_trans_handle *trans; int ret; + bool snapshot_force_cow = false; if (!test_bit(BTRFS_ROOT_REF_COWS, &root->state)) return -EINVAL; @@ -763,6 +764,11 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir, goto free_pending; } + /* + * Force new buffered writes to reserve space even when NOCOW is + * possible. This is to avoid later writeback (running dealloc) to + * fallback to COW mode and unexpectedly fail with ENOSPC. + */ atomic_inc(&root->will_be_snapshotted); smp_mb__after_atomic(); /* wait for no snapshot writes */ @@ -773,6 +779,14 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir, if (ret) goto dec_and_free; + /* + * All previous writes have started writeback in NOCOW mode, so now + * we force future writes to fallback to COW mode during snapshot + * creation. + */ + atomic_inc(&root->snapshot_force_cow); + snapshot_force_cow = true; + btrfs_wait_ordered_extents(root, U64_MAX, 0, (u64)-1); btrfs_init_block_rsv(&pending_snapshot->block_rsv, @@ -837,6 +851,8 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir, fail: btrfs_subvolume_release_metadata(fs_info, &pending_snapshot->block_rsv); dec_and_free: + if (snapshot_force_cow) + atomic_dec(&root->snapshot_force_cow); if (atomic_dec_and_test(&root->will_be_snapshotted)) wake_up_var(&root->will_be_snapshotted); free_pending: From 9c86336c15db1c48cbaddff56caf2be0a930e991 Mon Sep 17 00:00:00 2001 From: Haishuang Yan Date: Mon, 20 Aug 2018 10:51:05 +0800 Subject: [PATCH 0011/1762] ip6_vti: fix a null pointer deference when destroy vti6 tunnel If load ip6_vti module and create a network namespace when set fb_tunnels_only_for_init_net to 1, then exit the namespace will cause following crash: [ 6601.677036] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 [ 6601.679057] PGD 8000000425eca067 P4D 8000000425eca067 PUD 424292067 PMD 0 [ 6601.680483] Oops: 0000 [#1] SMP PTI [ 6601.681223] CPU: 7 PID: 93 Comm: kworker/u16:1 Kdump: loaded Tainted: G E 4.18.0+ #3 [ 6601.683153] Hardware name: Fedora Project OpenStack Nova, BIOS seabios-1.7.5-11.el7 04/01/2014 [ 6601.684919] Workqueue: netns cleanup_net [ 6601.685742] RIP: 0010:vti6_exit_batch_net+0x87/0xd0 [ip6_vti] [ 6601.686932] Code: 7b 08 48 89 e6 e8 b9 ea d3 dd 48 8b 1b 48 85 db 75 ec 48 83 c5 08 48 81 fd 00 01 00 00 75 d5 49 8b 84 24 08 01 00 00 48 89 e6 <48> 8b 78 08 e8 90 ea d3 dd 49 8b 45 28 49 39 c6 4c 8d 68 d8 75 a1 [ 6601.690735] RSP: 0018:ffffa897c2737de0 EFLAGS: 00010246 [ 6601.691846] RAX: 0000000000000000 RBX: 0000000000000000 RCX: dead000000000200 [ 6601.693324] RDX: 0000000000000015 RSI: ffffa897c2737de0 RDI: ffffffff9f2ea9e0 [ 6601.694824] RBP: 0000000000000100 R08: 0000000000000000 R09: 0000000000000000 [ 6601.696314] R10: 0000000000000001 R11: 0000000000000000 R12: ffff8dc323c07e00 [ 6601.697812] R13: ffff8dc324a63100 R14: ffffa897c2737e30 R15: ffffa897c2737e30 [ 6601.699345] FS: 0000000000000000(0000) GS:ffff8dc33fdc0000(0000) knlGS:0000000000000000 [ 6601.701068] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6601.702282] CR2: 0000000000000008 CR3: 0000000424966002 CR4: 00000000001606e0 [ 6601.703791] Call Trace: [ 6601.704329] cleanup_net+0x1b4/0x2c0 [ 6601.705268] process_one_work+0x16c/0x370 [ 6601.706145] worker_thread+0x49/0x3e0 [ 6601.706942] kthread+0xf8/0x130 [ 6601.707626] ? rescuer_thread+0x340/0x340 [ 6601.708476] ? kthread_bind+0x10/0x10 [ 6601.709266] ret_from_fork+0x35/0x40 Reproduce: modprobe ip6_vti echo 1 > /proc/sys/net/core/fb_tunnels_only_for_init_net unshare -n exit This because ip6n->tnls_wc[0] point to fallback device in default, but in non-default namespace, ip6n->tnls_wc[0] will be NULL, so add the NULL check comparatively. Fixes: e2948e5af8ee ("ip6_vti: fix creating fallback tunnel device for vti6") Signed-off-by: Haishuang Yan Signed-off-by: David S. Miller --- net/ipv6/ip6_vti.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c index 38dec9da90d3..5095367c7204 100644 --- a/net/ipv6/ip6_vti.c +++ b/net/ipv6/ip6_vti.c @@ -1094,7 +1094,8 @@ static void __net_exit vti6_destroy_tunnels(struct vti6_net *ip6n, } t = rtnl_dereference(ip6n->tnls_wc[0]); - unregister_netdevice_queue(t->dev, list); + if (t) + unregister_netdevice_queue(t->dev, list); } static int __net_init vti6_init_net(struct net *net) From 46dec40fb741f00f1864580130779aeeaf24fb3d Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Mon, 20 Aug 2018 16:05:45 +1000 Subject: [PATCH 0012/1762] KVM: PPC: Book3S HV: Don't truncate HPTE index in xlate function This fixes a bug which causes guest virtual addresses to get translated to guest real addresses incorrectly when the guest is using the HPT MMU and has more than 256GB of RAM, or more specifically has a HPT larger than 2GB. This has showed up in testing as a failure of the host to emulate doorbell instructions correctly on POWER9 for HPT guests with more than 256GB of RAM. The bug is that the HPTE index in kvmppc_mmu_book3s_64_hv_xlate() is stored as an int, and in forming the HPTE address, the index gets shifted left 4 bits as an int before being signed-extended to 64 bits. The simple fix is to make the variable a long int, matching the return type of kvmppc_hv_find_lock_hpte(), which is what calculates the index. Fixes: 697d3899dcb4 ("KVM: PPC: Implement MMIO emulation support for Book3S HV guests") Signed-off-by: Paul Mackerras --- arch/powerpc/kvm/book3s_64_mmu_hv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 7f3a8cf5d66f..4c08f42f6406 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -359,7 +359,7 @@ static int kvmppc_mmu_book3s_64_hv_xlate(struct kvm_vcpu *vcpu, gva_t eaddr, unsigned long pp, key; unsigned long v, orig_v, gr; __be64 *hptep; - int index; + long int index; int virtmode = vcpu->arch.shregs.msr & (data ? MSR_DR : MSR_IR); if (kvm_is_radix(vcpu->kvm)) From 8a54d8fc160e67ad485d95a0322ce1221f80770a Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 18 Jun 2018 09:29:57 +0200 Subject: [PATCH 0013/1762] cfg80211: remove division by size of sizeof(struct ieee80211_wmm_rule) Pointer arithmetic already adjusts by the size of the struct, so the sizeof() calculation is wrong. This is basically the same as Colin King's patch for similar code in the iwlwifi driver. Fixes: 230ebaa189af ("cfg80211: read wmm rules from regulatory database") Signed-off-by: Johannes Berg --- net/wireless/reg.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 4fc66a117b7d..283902974fbf 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -452,8 +452,7 @@ reg_copy_regd(const struct ieee80211_regdomain *src_regd) continue; regd->reg_rules[i].wmm_rule = d_wmm + - (src_regd->reg_rules[i].wmm_rule - s_wmm) / - sizeof(struct ieee80211_wmm_rule); + (src_regd->reg_rules[i].wmm_rule - s_wmm); } return regd; } From d3bc0fa8411c35194f99046157e2e26fe60e1d91 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Mon, 20 Aug 2018 13:55:45 +0200 Subject: [PATCH 0014/1762] fsnotify: fix false positive warning on inode delete When inode is getting deleted and someone else holds reference to a mark attached to the inode, we just detach the connector from the inode. In that case fsnotify_put_mark() called from fsnotify_destroy_marks() will decide to recalculate mask for the inode and __fsnotify_recalc_mask() will WARN about invalid connector type: WARNING: CPU: 1 PID: 12015 at fs/notify/mark.c:139 __fsnotify_recalc_mask+0x2d7/0x350 fs/notify/mark.c:139 Actually there's no reason to warn about detached connector in __fsnotify_recalc_mask() so just silently skip updating the mask in such case. Reported-by: syzbot+c34692a51b9a6ca93540@syzkaller.appspotmail.com Fixes: 3ac70bfcde81 ("fsnotify: add helper to get mask from connector") Signed-off-by: Jan Kara --- fs/notify/mark.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/notify/mark.c b/fs/notify/mark.c index 05506d60131c..59cdb27826de 100644 --- a/fs/notify/mark.c +++ b/fs/notify/mark.c @@ -132,13 +132,13 @@ static void __fsnotify_recalc_mask(struct fsnotify_mark_connector *conn) struct fsnotify_mark *mark; assert_spin_locked(&conn->lock); + /* We can get detached connector here when inode is getting unlinked. */ + if (!fsnotify_valid_obj_type(conn->type)) + return; hlist_for_each_entry(mark, &conn->list, obj_list) { if (mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED) new_mask |= mark->mask; } - if (WARN_ON(!fsnotify_valid_obj_type(conn->type))) - return; - *fsnotify_conn_mask_p(conn) = new_mask; } From f1506a69e3e72196c7c5ce4fd420d5e1a6965ed3 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sat, 28 Jul 2018 16:17:49 -0300 Subject: [PATCH 0015/1762] thermal: qoriq: Use devm_thermal_zone_of_sensor_register() By using the managed devm_thermal_zone_of_sensor_register() we can drop the explicit call to thermal_zone_of_sensor_unregister() in the qoriq_tmu_remove() function, which simplifies the code a bit. So switch to devm_thermal_zone_of_sensor_register(). Signed-off-by: Fabio Estevam Reviewed-by: Daniel Lezcano Signed-off-by: Eduardo Valentin --- drivers/thermal/qoriq_thermal.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/thermal/qoriq_thermal.c b/drivers/thermal/qoriq_thermal.c index c866cc165960..e32d6ac79145 100644 --- a/drivers/thermal/qoriq_thermal.c +++ b/drivers/thermal/qoriq_thermal.c @@ -233,8 +233,9 @@ static int qoriq_tmu_probe(struct platform_device *pdev) if (ret < 0) goto err_tmu; - data->tz = thermal_zone_of_sensor_register(&pdev->dev, data->sensor_id, - data, &tmu_tz_ops); + data->tz = devm_thermal_zone_of_sensor_register(&pdev->dev, + data->sensor_id, + data, &tmu_tz_ops); if (IS_ERR(data->tz)) { ret = PTR_ERR(data->tz); dev_err(&pdev->dev, @@ -261,8 +262,6 @@ static int qoriq_tmu_remove(struct platform_device *pdev) { struct qoriq_tmu_data *data = platform_get_drvdata(pdev); - thermal_zone_of_sensor_unregister(&pdev->dev, data->tz); - /* Disable monitoring */ tmu_write(data, TMR_DISABLE, &data->regs->tmr); From 1a893a5a198eff228ddc1a364830f8928b8f9ac5 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sat, 28 Jul 2018 16:17:50 -0300 Subject: [PATCH 0016/1762] thermal: qoriq: Simplify the 'site' variable assignment There is no need to assign zero to the variable 'site' and then perform a compound bitwise OR operation afterwards. Make it simpler by assigning the final 'site' value directly. Signed-off-by: Fabio Estevam Reviewed-by: Daniel Lezcano Signed-off-by: Eduardo Valentin --- drivers/thermal/qoriq_thermal.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/qoriq_thermal.c b/drivers/thermal/qoriq_thermal.c index e32d6ac79145..f807e4d1f72e 100644 --- a/drivers/thermal/qoriq_thermal.c +++ b/drivers/thermal/qoriq_thermal.c @@ -197,7 +197,7 @@ static int qoriq_tmu_probe(struct platform_device *pdev) int ret; struct qoriq_tmu_data *data; struct device_node *np = pdev->dev.of_node; - u32 site = 0; + u32 site; if (!np) { dev_err(&pdev->dev, "Device OF-Node is NULL"); @@ -244,7 +244,7 @@ static int qoriq_tmu_probe(struct platform_device *pdev) } /* Enable monitoring */ - site |= 0x1 << (15 - data->sensor_id); + site = 0x1 << (15 - data->sensor_id); tmu_write(data, site | TMR_ME | TMR_ALPF, &data->regs->tmr); return 0; From 2dfef650217c0e24754cd4c3abbb43e98131a7cf Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sat, 28 Jul 2018 16:17:51 -0300 Subject: [PATCH 0017/1762] thermal: qoriq: Switch to SPDX identifier Adopt the SPDX license identifier headers to ease license compliance management. Signed-off-by: Fabio Estevam Reviewed-by: Daniel Lezcano Acked-by: Philippe Ombredanne Signed-off-by: Eduardo Valentin --- drivers/thermal/qoriq_thermal.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-) diff --git a/drivers/thermal/qoriq_thermal.c b/drivers/thermal/qoriq_thermal.c index f807e4d1f72e..450ed66edf58 100644 --- a/drivers/thermal/qoriq_thermal.c +++ b/drivers/thermal/qoriq_thermal.c @@ -1,16 +1,6 @@ -/* - * Copyright 2016 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - */ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright 2016 Freescale Semiconductor, Inc. #include #include From f00d25f3154b676fcea4502a25b94bd7f142ca74 Mon Sep 17 00:00:00 2001 From: Tomer Tayar Date: Mon, 20 Aug 2018 00:01:42 +0300 Subject: [PATCH 0018/1762] qed: Wait for ready indication before rereading the shmem The MFW might be reset and re-update its shared memory. Upon the detection of such a reset the driver rereads this memory, but it has to wait till the data is valid. This patch adds the missing wait for a data ready indication. Signed-off-by: Tomer Tayar Signed-off-by: Ariel Elior Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_mcp.c | 50 +++++++++++++++++++---- 1 file changed, 41 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c index d89a0e22f6e4..bdcacb31d88b 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c +++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c @@ -183,18 +183,57 @@ int qed_mcp_free(struct qed_hwfn *p_hwfn) return 0; } +/* Maximum of 1 sec to wait for the SHMEM ready indication */ +#define QED_MCP_SHMEM_RDY_MAX_RETRIES 20 +#define QED_MCP_SHMEM_RDY_ITER_MS 50 + static int qed_load_mcp_offsets(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) { struct qed_mcp_info *p_info = p_hwfn->mcp_info; + u8 cnt = QED_MCP_SHMEM_RDY_MAX_RETRIES; + u8 msec = QED_MCP_SHMEM_RDY_ITER_MS; u32 drv_mb_offsize, mfw_mb_offsize; u32 mcp_pf_id = MCP_PF_ID(p_hwfn); p_info->public_base = qed_rd(p_hwfn, p_ptt, MISC_REG_SHARED_MEM_ADDR); - if (!p_info->public_base) - return 0; + if (!p_info->public_base) { + DP_NOTICE(p_hwfn, + "The address of the MCP scratch-pad is not configured\n"); + return -EINVAL; + } p_info->public_base |= GRCBASE_MCP; + /* Get the MFW MB address and number of supported messages */ + mfw_mb_offsize = qed_rd(p_hwfn, p_ptt, + SECTION_OFFSIZE_ADDR(p_info->public_base, + PUBLIC_MFW_MB)); + p_info->mfw_mb_addr = SECTION_ADDR(mfw_mb_offsize, mcp_pf_id); + p_info->mfw_mb_length = (u16)qed_rd(p_hwfn, p_ptt, + p_info->mfw_mb_addr + + offsetof(struct public_mfw_mb, + sup_msgs)); + + /* The driver can notify that there was an MCP reset, and might read the + * SHMEM values before the MFW has completed initializing them. + * To avoid this, the "sup_msgs" field in the MFW mailbox is used as a + * data ready indication. + */ + while (!p_info->mfw_mb_length && --cnt) { + msleep(msec); + p_info->mfw_mb_length = + (u16)qed_rd(p_hwfn, p_ptt, + p_info->mfw_mb_addr + + offsetof(struct public_mfw_mb, sup_msgs)); + } + + if (!cnt) { + DP_NOTICE(p_hwfn, + "Failed to get the SHMEM ready notification after %d msec\n", + QED_MCP_SHMEM_RDY_MAX_RETRIES * msec); + return -EBUSY; + } + /* Calculate the driver and MFW mailbox address */ drv_mb_offsize = qed_rd(p_hwfn, p_ptt, SECTION_OFFSIZE_ADDR(p_info->public_base, @@ -204,13 +243,6 @@ static int qed_load_mcp_offsets(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) "drv_mb_offsiz = 0x%x, drv_mb_addr = 0x%x mcp_pf_id = 0x%x\n", drv_mb_offsize, p_info->drv_mb_addr, mcp_pf_id); - /* Set the MFW MB address */ - mfw_mb_offsize = qed_rd(p_hwfn, p_ptt, - SECTION_OFFSIZE_ADDR(p_info->public_base, - PUBLIC_MFW_MB)); - p_info->mfw_mb_addr = SECTION_ADDR(mfw_mb_offsize, mcp_pf_id); - p_info->mfw_mb_length = (u16)qed_rd(p_hwfn, p_ptt, p_info->mfw_mb_addr); - /* Get the current driver mailbox sequence before sending * the first command */ From 76271809f49056f079e202bf6513d17b0d6dd34d Mon Sep 17 00:00:00 2001 From: Tomer Tayar Date: Mon, 20 Aug 2018 00:01:43 +0300 Subject: [PATCH 0019/1762] qed: Wait for MCP halt and resume commands to take place Successive iterations of halting and resuming the management chip (MCP) might fail, since currently the driver doesn't wait for these operations to actually take place. This patch prevents the driver from moving forward before the operations are reflected in the state register. Signed-off-by: Tomer Tayar Signed-off-by: Ariel Elior Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_mcp.c | 46 +++++++++++++++---- .../net/ethernet/qlogic/qed/qed_reg_addr.h | 1 + 2 files changed, 39 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c index bdcacb31d88b..5f3dbdc7ff1d 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c +++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c @@ -2109,31 +2109,61 @@ qed_mcp_send_drv_version(struct qed_hwfn *p_hwfn, return rc; } +/* A maximal 100 msec waiting time for the MCP to halt */ +#define QED_MCP_HALT_SLEEP_MS 10 +#define QED_MCP_HALT_MAX_RETRIES 10 + int qed_mcp_halt(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) { - u32 resp = 0, param = 0; + u32 resp = 0, param = 0, cpu_state, cnt = 0; int rc; rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_MCP_HALT, 0, &resp, ¶m); - if (rc) + if (rc) { DP_ERR(p_hwfn, "MCP response failure, aborting\n"); + return rc; + } - return rc; + do { + msleep(QED_MCP_HALT_SLEEP_MS); + cpu_state = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_STATE); + if (cpu_state & MCP_REG_CPU_STATE_SOFT_HALTED) + break; + } while (++cnt < QED_MCP_HALT_MAX_RETRIES); + + if (cnt == QED_MCP_HALT_MAX_RETRIES) { + DP_NOTICE(p_hwfn, + "Failed to halt the MCP [CPU_MODE = 0x%08x, CPU_STATE = 0x%08x]\n", + qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE), cpu_state); + return -EBUSY; + } + + return 0; } +#define QED_MCP_RESUME_SLEEP_MS 10 + int qed_mcp_resume(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) { - u32 value, cpu_mode; + u32 cpu_mode, cpu_state; qed_wr(p_hwfn, p_ptt, MCP_REG_CPU_STATE, 0xffffffff); - value = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE); - value &= ~MCP_REG_CPU_MODE_SOFT_HALT; - qed_wr(p_hwfn, p_ptt, MCP_REG_CPU_MODE, value); cpu_mode = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE); + cpu_mode &= ~MCP_REG_CPU_MODE_SOFT_HALT; + qed_wr(p_hwfn, p_ptt, MCP_REG_CPU_MODE, cpu_mode); + msleep(QED_MCP_RESUME_SLEEP_MS); + cpu_state = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_STATE); - return (cpu_mode & MCP_REG_CPU_MODE_SOFT_HALT) ? -EAGAIN : 0; + if (cpu_state & MCP_REG_CPU_STATE_SOFT_HALTED) { + DP_NOTICE(p_hwfn, + "Failed to resume the MCP [CPU_MODE = 0x%08x, CPU_STATE = 0x%08x]\n", + cpu_mode, cpu_state); + return -EBUSY; + } + + return 0; } int qed_mcp_ov_update_current_config(struct qed_hwfn *p_hwfn, diff --git a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h index d8ad2dcad8d5..2279965f8f8a 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h +++ b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h @@ -562,6 +562,7 @@ 0 #define MCP_REG_CPU_STATE \ 0xe05004UL +#define MCP_REG_CPU_STATE_SOFT_HALTED (0x1UL << 10) #define MCP_REG_CPU_EVENT_MASK \ 0xe05008UL #define PGLUE_B_REG_PF_BAR0_SIZE \ From eaa50fc59e5841910987e90b0438b2643041f508 Mon Sep 17 00:00:00 2001 From: Tomer Tayar Date: Mon, 20 Aug 2018 00:01:44 +0300 Subject: [PATCH 0020/1762] qed: Prevent a possible deadlock during driver load and unload The MFW manages an internal lock to prevent concurrent hardware (de)initialization of different PFs. This, together with the busy-waiting for the MFW's responses for commands, might lead to a deadlock during concurrent load or unload of PFs. This patch adds the option to sleep within the busy-waiting, and uses it for the (un)load requests (which are not sent from an interrupt context) to prevent the possible deadlock. Signed-off-by: Tomer Tayar Signed-off-by: Ariel Elior Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_mcp.c | 43 ++++++++++++++++------- drivers/net/ethernet/qlogic/qed/qed_mcp.h | 21 ++++++----- 2 files changed, 44 insertions(+), 20 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c index 5f3dbdc7ff1d..b7279e625db3 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c +++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c @@ -48,7 +48,7 @@ #include "qed_reg_addr.h" #include "qed_sriov.h" -#define CHIP_MCP_RESP_ITER_US 10 +#define QED_MCP_RESP_ITER_US 10 #define QED_DRV_MB_MAX_RETRIES (500 * 1000) /* Account for 5 sec */ #define QED_MCP_RESET_RETRIES (50 * 1000) /* Account for 500 msec */ @@ -317,7 +317,7 @@ static void qed_mcp_reread_offsets(struct qed_hwfn *p_hwfn, int qed_mcp_reset(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) { - u32 org_mcp_reset_seq, seq, delay = CHIP_MCP_RESP_ITER_US, cnt = 0; + u32 org_mcp_reset_seq, seq, delay = QED_MCP_RESP_ITER_US, cnt = 0; int rc = 0; /* Ensure that only a single thread is accessing the mailbox */ @@ -449,10 +449,10 @@ static int _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, struct qed_mcp_mb_params *p_mb_params, - u32 max_retries, u32 delay) + u32 max_retries, u32 usecs) { + u32 cnt = 0, msecs = DIV_ROUND_UP(usecs, 1000); struct qed_mcp_cmd_elem *p_cmd_elem; - u32 cnt = 0; u16 seq_num; int rc = 0; @@ -475,7 +475,11 @@ _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn, goto err; spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock); - udelay(delay); + + if (QED_MB_FLAGS_IS_SET(p_mb_params, CAN_SLEEP)) + msleep(msecs); + else + udelay(usecs); } while (++cnt < max_retries); if (cnt >= max_retries) { @@ -504,7 +508,11 @@ _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn, * The spinlock stays locked until the list element is removed. */ - udelay(delay); + if (QED_MB_FLAGS_IS_SET(p_mb_params, CAN_SLEEP)) + msleep(msecs); + else + udelay(usecs); + spin_lock_bh(&p_hwfn->mcp_info->cmd_lock); if (p_cmd_elem->b_is_completed) @@ -539,7 +547,7 @@ _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn, "MFW mailbox: response 0x%08x param 0x%08x [after %d.%03d ms]\n", p_mb_params->mcp_resp, p_mb_params->mcp_param, - (cnt * delay) / 1000, (cnt * delay) % 1000); + (cnt * usecs) / 1000, (cnt * usecs) % 1000); /* Clear the sequence number from the MFW response */ p_mb_params->mcp_resp &= FW_MSG_CODE_MASK; @@ -557,7 +565,7 @@ static int qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn, { size_t union_data_size = sizeof(union drv_union_data); u32 max_retries = QED_DRV_MB_MAX_RETRIES; - u32 delay = CHIP_MCP_RESP_ITER_US; + u32 usecs = QED_MCP_RESP_ITER_US; /* MCP not initialized */ if (!qed_mcp_is_init(p_hwfn)) { @@ -574,8 +582,13 @@ static int qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn, return -EINVAL; } + if (QED_MB_FLAGS_IS_SET(p_mb_params, CAN_SLEEP)) { + max_retries = DIV_ROUND_UP(max_retries, 1000); + usecs *= 1000; + } + return _qed_mcp_cmd_and_union(p_hwfn, p_ptt, p_mb_params, max_retries, - delay); + usecs); } int qed_mcp_cmd(struct qed_hwfn *p_hwfn, @@ -793,6 +806,7 @@ __qed_mcp_load_req(struct qed_hwfn *p_hwfn, mb_params.data_src_size = sizeof(load_req); mb_params.p_data_dst = &load_rsp; mb_params.data_dst_size = sizeof(load_rsp); + mb_params.flags = QED_MB_FLAG_CAN_SLEEP; DP_VERBOSE(p_hwfn, QED_MSG_SP, "Load Request: param 0x%08x [init_hw %d, drv_type %d, hsi_ver %d, pda 0x%04x]\n", @@ -1014,7 +1028,8 @@ int qed_mcp_load_req(struct qed_hwfn *p_hwfn, int qed_mcp_unload_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) { - u32 wol_param, mcp_resp, mcp_param; + struct qed_mcp_mb_params mb_params; + u32 wol_param; switch (p_hwfn->cdev->wol_config) { case QED_OV_WOL_DISABLED: @@ -1032,8 +1047,12 @@ int qed_mcp_unload_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) wol_param = DRV_MB_PARAM_UNLOAD_WOL_MCP; } - return qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_UNLOAD_REQ, wol_param, - &mcp_resp, &mcp_param); + memset(&mb_params, 0, sizeof(mb_params)); + mb_params.cmd = DRV_MSG_CODE_UNLOAD_REQ; + mb_params.param = wol_param; + mb_params.flags = QED_MB_FLAG_CAN_SLEEP; + + return qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params); } int qed_mcp_unload_done(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.h b/drivers/net/ethernet/qlogic/qed/qed_mcp.h index 047976d5c6e9..b9d3ecf7aad6 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_mcp.h +++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.h @@ -660,14 +660,19 @@ struct qed_mcp_info { }; struct qed_mcp_mb_params { - u32 cmd; - u32 param; - void *p_data_src; - u8 data_src_size; - void *p_data_dst; - u8 data_dst_size; - u32 mcp_resp; - u32 mcp_param; + u32 cmd; + u32 param; + void *p_data_src; + void *p_data_dst; + u8 data_src_size; + u8 data_dst_size; + u32 mcp_resp; + u32 mcp_param; + u32 flags; +#define QED_MB_FLAG_CAN_SLEEP (0x1 << 0) +#define QED_MB_FLAGS_IS_SET(params, flag) \ + ({ typeof(params) __params = (params); \ + (__params && (__params->flags & QED_MB_FLAG_ ## flag)); }) }; struct qed_drv_tlv_hdr { From b310974e041913231b6e3d5d475d4df55c312301 Mon Sep 17 00:00:00 2001 From: Tomer Tayar Date: Mon, 20 Aug 2018 00:01:45 +0300 Subject: [PATCH 0021/1762] qed: Avoid sending mailbox commands when MFW is not responsive Keep sending mailbox commands to the MFW when it is not responsive ends up with a redundant amount of timeout expiries. This patch prints the MCP status on the first command which is not responded, and blocks the following commands. Since the (un)load request commands might be not responded due to other PFs, the patch also adds the option to skip the blocking upon a failure. Signed-off-by: Tomer Tayar Signed-off-by: Ariel Elior Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_mcp.c | 52 ++++++++++++++++++- drivers/net/ethernet/qlogic/qed/qed_mcp.h | 6 ++- .../net/ethernet/qlogic/qed/qed_reg_addr.h | 1 + 3 files changed, 56 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c index b7279e625db3..5d37ec7e9b0b 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c +++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c @@ -320,6 +320,12 @@ int qed_mcp_reset(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) u32 org_mcp_reset_seq, seq, delay = QED_MCP_RESP_ITER_US, cnt = 0; int rc = 0; + if (p_hwfn->mcp_info->b_block_cmd) { + DP_NOTICE(p_hwfn, + "The MFW is not responsive. Avoid sending MCP_RESET mailbox command.\n"); + return -EBUSY; + } + /* Ensure that only a single thread is accessing the mailbox */ spin_lock_bh(&p_hwfn->mcp_info->cmd_lock); @@ -445,6 +451,33 @@ static void __qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn, (p_mb_params->cmd | seq_num), p_mb_params->param); } +static void qed_mcp_cmd_set_blocking(struct qed_hwfn *p_hwfn, bool block_cmd) +{ + p_hwfn->mcp_info->b_block_cmd = block_cmd; + + DP_INFO(p_hwfn, "%s sending of mailbox commands to the MFW\n", + block_cmd ? "Block" : "Unblock"); +} + +static void qed_mcp_print_cpu_info(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt) +{ + u32 cpu_mode, cpu_state, cpu_pc_0, cpu_pc_1, cpu_pc_2; + u32 delay = QED_MCP_RESP_ITER_US; + + cpu_mode = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE); + cpu_state = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_STATE); + cpu_pc_0 = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_PROGRAM_COUNTER); + udelay(delay); + cpu_pc_1 = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_PROGRAM_COUNTER); + udelay(delay); + cpu_pc_2 = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_PROGRAM_COUNTER); + + DP_NOTICE(p_hwfn, + "MCP CPU info: mode 0x%08x, state 0x%08x, pc {0x%08x, 0x%08x, 0x%08x}\n", + cpu_mode, cpu_state, cpu_pc_0, cpu_pc_1, cpu_pc_2); +} + static int _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, @@ -531,11 +564,15 @@ _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn, DP_NOTICE(p_hwfn, "The MFW failed to respond to command 0x%08x [param 0x%08x].\n", p_mb_params->cmd, p_mb_params->param); + qed_mcp_print_cpu_info(p_hwfn, p_ptt); spin_lock_bh(&p_hwfn->mcp_info->cmd_lock); qed_mcp_cmd_del_elem(p_hwfn, p_cmd_elem); spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock); + if (!QED_MB_FLAGS_IS_SET(p_mb_params, AVOID_BLOCK)) + qed_mcp_cmd_set_blocking(p_hwfn, true); + return -EAGAIN; } @@ -573,6 +610,13 @@ static int qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn, return -EBUSY; } + if (p_hwfn->mcp_info->b_block_cmd) { + DP_NOTICE(p_hwfn, + "The MFW is not responsive. Avoid sending mailbox command 0x%08x [param 0x%08x].\n", + p_mb_params->cmd, p_mb_params->param); + return -EBUSY; + } + if (p_mb_params->data_src_size > union_data_size || p_mb_params->data_dst_size > union_data_size) { DP_ERR(p_hwfn, @@ -806,7 +850,7 @@ __qed_mcp_load_req(struct qed_hwfn *p_hwfn, mb_params.data_src_size = sizeof(load_req); mb_params.p_data_dst = &load_rsp; mb_params.data_dst_size = sizeof(load_rsp); - mb_params.flags = QED_MB_FLAG_CAN_SLEEP; + mb_params.flags = QED_MB_FLAG_CAN_SLEEP | QED_MB_FLAG_AVOID_BLOCK; DP_VERBOSE(p_hwfn, QED_MSG_SP, "Load Request: param 0x%08x [init_hw %d, drv_type %d, hsi_ver %d, pda 0x%04x]\n", @@ -1050,7 +1094,7 @@ int qed_mcp_unload_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) memset(&mb_params, 0, sizeof(mb_params)); mb_params.cmd = DRV_MSG_CODE_UNLOAD_REQ; mb_params.param = wol_param; - mb_params.flags = QED_MB_FLAG_CAN_SLEEP; + mb_params.flags = QED_MB_FLAG_CAN_SLEEP | QED_MB_FLAG_AVOID_BLOCK; return qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params); } @@ -2158,6 +2202,8 @@ int qed_mcp_halt(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) return -EBUSY; } + qed_mcp_cmd_set_blocking(p_hwfn, true); + return 0; } @@ -2182,6 +2228,8 @@ int qed_mcp_resume(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) return -EBUSY; } + qed_mcp_cmd_set_blocking(p_hwfn, false); + return 0; } diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.h b/drivers/net/ethernet/qlogic/qed/qed_mcp.h index b9d3ecf7aad6..85e6b3989e7a 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_mcp.h +++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.h @@ -635,11 +635,14 @@ struct qed_mcp_info { */ spinlock_t cmd_lock; + /* Flag to indicate whether sending a MFW mailbox command is blocked */ + bool b_block_cmd; + /* Spinlock used for syncing SW link-changes and link-changes * originating from attention context. */ spinlock_t link_lock; - bool block_mb_sending; + u32 public_base; u32 drv_mb_addr; u32 mfw_mb_addr; @@ -670,6 +673,7 @@ struct qed_mcp_mb_params { u32 mcp_param; u32 flags; #define QED_MB_FLAG_CAN_SLEEP (0x1 << 0) +#define QED_MB_FLAG_AVOID_BLOCK (0x1 << 1) #define QED_MB_FLAGS_IS_SET(params, flag) \ ({ typeof(params) __params = (params); \ (__params && (__params->flags & QED_MB_FLAG_ ## flag)); }) diff --git a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h index 2279965f8f8a..f736f70956fd 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h +++ b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h @@ -565,6 +565,7 @@ #define MCP_REG_CPU_STATE_SOFT_HALTED (0x1UL << 10) #define MCP_REG_CPU_EVENT_MASK \ 0xe05008UL +#define MCP_REG_CPU_PROGRAM_COUNTER 0xe0501cUL #define PGLUE_B_REG_PF_BAR0_SIZE \ 0x2aae60UL #define PGLUE_B_REG_PF_BAR1_SIZE \ From c954579087f4c0185206cfa777e697874b1e7d13 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 30 Jul 2018 07:56:06 +0000 Subject: [PATCH 0022/1762] thermal: rcar_thermal: convert to SPDX identifiers As original license mentioned, it is GPL-2.0 in SPDX. Then, MODULE_LICENSE() should be "GPL v2" instead of "GPL". See ${LINUX}/include/linux/module.h "GPL" [GNU Public License v2 or later] "GPL v2" [GNU Public License v2] Signed-off-by: Kuninori Morimoto Reviewed-by: Daniel Lezcano Reviewed-by: Geert Uytterhoeven Reviewed-by: Simon Horman Signed-off-by: Eduardo Valentin --- drivers/thermal/rcar_thermal.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index e77e63070e99..78f932822d38 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -1,21 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* * R-Car THS/TSC thermal sensor driver * * Copyright (C) 2012 Renesas Solutions Corp. * Kuninori Morimoto - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include #include @@ -660,6 +648,6 @@ static struct platform_driver rcar_thermal_driver = { }; module_platform_driver(rcar_thermal_driver); -MODULE_LICENSE("GPL"); +MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("R-Car THS/TSC thermal sensor driver"); MODULE_AUTHOR("Kuninori Morimoto "); From d316522d06e9894429ace4b5f99e181bde4e7bd7 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 20 Aug 2018 11:42:35 -0700 Subject: [PATCH 0023/1762] thermal: rcar_gen3_thermal: convert to SPDX identifiers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Kuninori Morimoto Reviewed-by: Geert Uytterhoeven Reviewed-by: Daniel Lezcano Reviewed-by: Niklas Söderlund Reviewed-by: Simon Horman Signed-off-by: Eduardo Valentin --- drivers/thermal/rcar_gen3_thermal.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c index 766521eb7071..7aed5337bdd3 100644 --- a/drivers/thermal/rcar_gen3_thermal.c +++ b/drivers/thermal/rcar_gen3_thermal.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 /* * R-Car Gen3 THS thermal sensor driver * Based on rcar_thermal.c and work from Hien Dang and Khiem Nguyen. * * Copyright (C) 2016 Renesas Electronics Corporation. * Copyright (C) 2016 Sang Engineering - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * */ #include #include From 152395fd03d4ce1e535a75cdbf58105e50587611 Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Tue, 31 Jul 2018 00:56:49 +0800 Subject: [PATCH 0024/1762] thermal: of-thermal: disable passive polling when thermal zone is disabled When thermal zone is in passive mode, disabling its mode from sysfs is NOT taking effect at all, it is still polling the temperature of the disabled thermal zone and handling all thermal trips, it makes user confused. The disabling operation should disable the thermal zone behavior completely, for both active and passive mode, this patch clears the passive_delay when thermal zone is disabled and restores it when it is enabled. Signed-off-by: Anson Huang Signed-off-by: Eduardo Valentin --- drivers/thermal/of-thermal.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index 977a8307fbb1..4f2816559205 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -260,10 +260,13 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz, mutex_lock(&tz->lock); - if (mode == THERMAL_DEVICE_ENABLED) + if (mode == THERMAL_DEVICE_ENABLED) { tz->polling_delay = data->polling_delay; - else + tz->passive_delay = data->passive_delay; + } else { tz->polling_delay = 0; + tz->passive_delay = 0; + } mutex_unlock(&tz->lock); From 176eb614b118c96e7797f5ddefd10708c316f621 Mon Sep 17 00:00:00 2001 From: Kai-Heng Feng Date: Mon, 20 Aug 2018 12:43:51 +0800 Subject: [PATCH 0025/1762] r8152: disable RX aggregation on new Dell TB16 dock There's a new Dell TB16 dock with a different iSerialNumber. Apply the same fix from commit 0b1655143df0 ("r8152: disable RX aggregation on Dell TB16 dock") to this model. BugLink: https://bugs.launchpad.net/bugs/1785780 Signed-off-by: Kai-Heng Feng Signed-off-by: David S. Miller --- drivers/net/usb/r8152.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 97742708460b..2cd71bdb6484 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -5217,8 +5217,8 @@ static int rtl8152_probe(struct usb_interface *intf, netdev->hw_features &= ~NETIF_F_RXCSUM; } - if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x3011 && - udev->serial && !strcmp(udev->serial, "000001000000")) { + if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x3011 && udev->serial && + (!strcmp(udev->serial, "000001000000") || !strcmp(udev->serial, "000002000000"))) { dev_info(&udev->dev, "Dell TB16 Dock, disable RX aggregation"); set_bit(DELL_TB_RX_AGG_BUG, &tp->flags); } From 80f1a0f4e0cd4bfc8a74fc1c39843a6e7b206b95 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Mon, 20 Aug 2018 13:02:41 -0700 Subject: [PATCH 0026/1762] net/ipv6: Put lwtstate when destroying fib6_info Prior to the introduction of fib6_info lwtstate was managed by the dst code. With fib6_info releasing lwtstate needs to be done when the struct is freed. Fixes: 93531c674315 ("net/ipv6: separate handling of FIB entries from dst based routes") Signed-off-by: David Ahern Signed-off-by: David S. Miller --- net/ipv6/ip6_fib.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index d212738e9d10..c861a6d4671d 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -198,6 +198,8 @@ void fib6_info_destroy_rcu(struct rcu_head *head) } } + lwtstate_put(f6i->fib6_nh.nh_lwtstate); + if (f6i->fib6_nh.nh_dev) dev_put(f6i->fib6_nh.nh_dev); From ab08dcd724543896303eae7de6288242bbaff458 Mon Sep 17 00:00:00 2001 From: Yue Haibing Date: Tue, 21 Aug 2018 01:41:56 +0000 Subject: [PATCH 0027/1762] rhashtable: remove duplicated include from rhashtable.c Remove duplicated include. Signed-off-by: Yue Haibing Signed-off-by: David S. Miller --- lib/rhashtable.c | 1 - 1 file changed, 1 deletion(-) diff --git a/lib/rhashtable.c b/lib/rhashtable.c index ae4223e0f5bc..672eecda874a 100644 --- a/lib/rhashtable.c +++ b/lib/rhashtable.c @@ -28,7 +28,6 @@ #include #include #include -#include #define HASH_DEFAULT_SIZE 64UL #define HASH_MIN_SIZE 4U From 09a4e0be5826aa66c4ce9954841f110ffe63ef4f Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Thu, 16 Aug 2018 21:44:02 -0500 Subject: [PATCH 0028/1762] isofs: reject hardware sector size > 2048 bytes The largest block size supported by isofs is ISOFS_BLOCK_SIZE (2048), but isofs_fill_super calls sb_min_blocksize and sets the blocksize to the device's logical block size if it's larger than what we ended up with after option parsing. If for some reason we try to mount a hard 4k device as an isofs filesystem, we'll set opt.blocksize to 4096, and when we try to read the superblock we found via: block = iso_blknum << (ISOFS_BLOCK_BITS - s->s_blocksize_bits) with s_blocksize_bits greater than ISOFS_BLOCK_BITS, we'll have a negative shift and the bread will fail somewhat cryptically: isofs_fill_super: bread failed, dev=sda, iso_blknum=17, block=-2147483648 It seems best to just catch and clearly reject mounts of such a device. Reported-by: Bryan Gurney Signed-off-by: Eric Sandeen Signed-off-by: Jan Kara --- fs/isofs/inode.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index ec3fba7d492f..488a9e7f8f66 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -24,6 +24,7 @@ #include #include #include +#include #include "isofs.h" #include "zisofs.h" @@ -653,6 +654,12 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent) /* * What if bugger tells us to go beyond page size? */ + if (bdev_logical_block_size(s->s_bdev) > 2048) { + printk(KERN_WARNING + "ISOFS: unsupported/invalid hardware sector size %d\n", + bdev_logical_block_size(s->s_bdev)); + goto out_freesbi; + } opt.blocksize = sb_min_blocksize(s, opt.blocksize); sbi->s_high_sierra = 0; /* default is iso9660 */ From 19f5e9e015675fcdbf2c20e804b2e84e80201454 Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Mon, 20 Aug 2018 10:54:44 +0200 Subject: [PATCH 0029/1762] mmc: atmel-mci: fix bad logic of sg_copy_{from,to}_buffer conversion The conversion to sg_copy_{from,to}_buffer has been done in the wrong way. sg_copy_to_buffer is a copy from an SG list to a linear buffer so it can't replace memcpy(buf + offset, &value, remaining) where buf is the virtual address of the SG. Same for sg_copy_to_buffer but in the opposite way. Signed-off-by: Ludovic Desroches Suggested-by: Douglas Gilbert Fixes: 5b4277814e3f ("mmc: atmel-mci: use sg_copy_{from,to}_buffer") Signed-off-by: Ulf Hansson --- drivers/mmc/host/atmel-mci.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index 5aa2c9404e92..be53044086c7 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -1976,7 +1976,7 @@ static void atmci_read_data_pio(struct atmel_mci *host) do { value = atmci_readl(host, ATMCI_RDR); if (likely(offset + 4 <= sg->length)) { - sg_pcopy_to_buffer(sg, 1, &value, sizeof(u32), offset); + sg_pcopy_from_buffer(sg, 1, &value, sizeof(u32), offset); offset += 4; nbytes += 4; @@ -1993,7 +1993,7 @@ static void atmci_read_data_pio(struct atmel_mci *host) } else { unsigned int remaining = sg->length - offset; - sg_pcopy_to_buffer(sg, 1, &value, remaining, offset); + sg_pcopy_from_buffer(sg, 1, &value, remaining, offset); nbytes += remaining; flush_dcache_page(sg_page(sg)); @@ -2003,7 +2003,7 @@ static void atmci_read_data_pio(struct atmel_mci *host) goto done; offset = 4 - remaining; - sg_pcopy_to_buffer(sg, 1, (u8 *)&value + remaining, + sg_pcopy_from_buffer(sg, 1, (u8 *)&value + remaining, offset, 0); nbytes += offset; } @@ -2042,7 +2042,7 @@ static void atmci_write_data_pio(struct atmel_mci *host) do { if (likely(offset + 4 <= sg->length)) { - sg_pcopy_from_buffer(sg, 1, &value, sizeof(u32), offset); + sg_pcopy_to_buffer(sg, 1, &value, sizeof(u32), offset); atmci_writel(host, ATMCI_TDR, value); offset += 4; @@ -2059,7 +2059,7 @@ static void atmci_write_data_pio(struct atmel_mci *host) unsigned int remaining = sg->length - offset; value = 0; - sg_pcopy_from_buffer(sg, 1, &value, remaining, offset); + sg_pcopy_to_buffer(sg, 1, &value, remaining, offset); nbytes += remaining; host->sg = sg = sg_next(sg); @@ -2070,7 +2070,7 @@ static void atmci_write_data_pio(struct atmel_mci *host) } offset = 4 - remaining; - sg_pcopy_from_buffer(sg, 1, (u8 *)&value + remaining, + sg_pcopy_to_buffer(sg, 1, (u8 *)&value + remaining, offset, 0); atmci_writel(host, ATMCI_TDR, value); nbytes += offset; From 17e96d8516e31c3cb52cb8e2ee79d1d2e6948c11 Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Mon, 20 Aug 2018 10:54:45 +0200 Subject: [PATCH 0030/1762] mmc: android-goldfish: fix bad logic of sg_copy_{from,to}_buffer conversion The conversion to sg_copy_{from,to}_buffer has been done in the wrong way. sg_copy_to_buffer is a copy from an SG list to a linear buffer so it can't replace memcpy(dest, host->virt_base, data->sg->length) where dest is the virtual address of the SG. Same for sg_copy_from_buffer but in the opposite way. Signed-off-by: Ludovic Desroches Suggested-by: Douglas Gilbert Fixes: 53d7e098ba08 ("mmc: android-goldfish: use sg_copy_{from,to}_buffer") Signed-off-by: Ulf Hansson --- drivers/mmc/host/android-goldfish.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/android-goldfish.c b/drivers/mmc/host/android-goldfish.c index 294de177632c..61e4e2a213c9 100644 --- a/drivers/mmc/host/android-goldfish.c +++ b/drivers/mmc/host/android-goldfish.c @@ -217,7 +217,7 @@ static void goldfish_mmc_xfer_done(struct goldfish_mmc_host *host, * We don't really have DMA, so we need * to copy from our platform driver buffer */ - sg_copy_to_buffer(data->sg, 1, host->virt_base, + sg_copy_from_buffer(data->sg, 1, host->virt_base, data->sg->length); } host->data->bytes_xfered += data->sg->length; @@ -393,7 +393,7 @@ static void goldfish_mmc_prepare_data(struct goldfish_mmc_host *host, * We don't really have DMA, so we need to copy to our * platform driver buffer */ - sg_copy_from_buffer(data->sg, 1, host->virt_base, + sg_copy_to_buffer(data->sg, 1, host->virt_base, data->sg->length); } } From 26caddf274cf1e89fd4ce44ab2b8dbc7a7f97681 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Tue, 21 Aug 2018 15:05:55 +0300 Subject: [PATCH 0031/1762] mmc: block: Fix unsupported parallel dispatch of requests The mmc block driver does not support parallel dispatch of requests. In normal circumstances, all requests are anyway funneled through a single work item, so parallel dispatch never happens. However it can happen if there is no elevator. Fix that by detecting if a dispatch is in progress and returning busy (BLK_STS_RESOURCE) in that case Fixes: 81196976ed94 ("mmc: block: Add blk-mq support") Cc: stable@vger.kernel.org # v4.16+ Signed-off-by: Adrian Hunter Signed-off-by: Ulf Hansson --- drivers/mmc/core/queue.c | 12 +++++++----- drivers/mmc/core/queue.h | 1 + 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c index 648eb6743ed5..6edffeed9953 100644 --- a/drivers/mmc/core/queue.c +++ b/drivers/mmc/core/queue.c @@ -238,10 +238,6 @@ static void mmc_mq_exit_request(struct blk_mq_tag_set *set, struct request *req, mmc_exit_request(mq->queue, req); } -/* - * We use BLK_MQ_F_BLOCKING and have only 1 hardware queue, which means requests - * will not be dispatched in parallel. - */ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx, const struct blk_mq_queue_data *bd) { @@ -264,7 +260,7 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx, spin_lock_irq(q->queue_lock); - if (mq->recovery_needed) { + if (mq->recovery_needed || mq->busy) { spin_unlock_irq(q->queue_lock); return BLK_STS_RESOURCE; } @@ -291,6 +287,9 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx, break; } + /* Parallel dispatch of requests is not supported at the moment */ + mq->busy = true; + mq->in_flight[issue_type] += 1; get_card = (mmc_tot_in_flight(mq) == 1); cqe_retune_ok = (mmc_cqe_qcnt(mq) == 1); @@ -333,9 +332,12 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx, mq->in_flight[issue_type] -= 1; if (mmc_tot_in_flight(mq) == 0) put_card = true; + mq->busy = false; spin_unlock_irq(q->queue_lock); if (put_card) mmc_put_card(card, &mq->ctx); + } else { + WRITE_ONCE(mq->busy, false); } return ret; diff --git a/drivers/mmc/core/queue.h b/drivers/mmc/core/queue.h index 17e59d50b496..9bf3c9245075 100644 --- a/drivers/mmc/core/queue.h +++ b/drivers/mmc/core/queue.h @@ -81,6 +81,7 @@ struct mmc_queue { unsigned int cqe_busy; #define MMC_CQE_DCMD_BUSY BIT(0) #define MMC_CQE_QUEUE_FULL BIT(1) + bool busy; bool use_cqe; bool recovery_needed; bool in_recovery; From 51474eff2bc2777061ab3658e014a37dc9d7a775 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 14 Aug 2018 11:57:07 +0200 Subject: [PATCH 0032/1762] Bluetooth: Make BT_HCIUART_RTL configuration option depend on ACPI At the moment we only support ACPI enumeration for serial port attached RTL bluetooth controllers. This commit adds a dependency on ACPI to the BT_HCIUART_RTL configuration option, fixing the following warning when ACPI is not enabled: drivers/bluetooth/hci_h5.c:920:22: warning: 'rtl_vnd' defined but not used Cc: Arnd Bergmann Reported-by: Arnd Bergmann Signed-off-by: Hans de Goede Acked-by: Arnd Bergmann Acked-by: Geert Uytterhoeven Signed-off-by: Marcel Holtmann --- drivers/bluetooth/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig index 2df11cc08a46..845b0314ce3a 100644 --- a/drivers/bluetooth/Kconfig +++ b/drivers/bluetooth/Kconfig @@ -200,6 +200,7 @@ config BT_HCIUART_RTL depends on BT_HCIUART depends on BT_HCIUART_SERDEV depends on GPIOLIB + depends on ACPI select BT_HCIUART_3WIRE select BT_RTL help From addb3ffbca66954fb1d1791d2db2153c403f81af Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Tue, 14 Aug 2018 10:10:31 -0500 Subject: [PATCH 0033/1762] Bluetooth: mediatek: Fix memory leak In case memory resources for *fw* were allocated, release them before return. Addresses-Coverity-ID: 1472611 ("Resource leak") Fixes: 7237c4c9ec92 ("Bluetooth: mediatek: Add protocol support for MediaTek serial devices") Signed-off-by: Gustavo A. R. Silva Acked-by: Sean Wang Signed-off-by: Marcel Holtmann --- drivers/bluetooth/btmtkuart.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/bluetooth/btmtkuart.c b/drivers/bluetooth/btmtkuart.c index ed2a5c7cb77f..4593baff2bc9 100644 --- a/drivers/bluetooth/btmtkuart.c +++ b/drivers/bluetooth/btmtkuart.c @@ -144,8 +144,10 @@ static int mtk_setup_fw(struct hci_dev *hdev) fw_size = fw->size; /* The size of patch header is 30 bytes, should be skip */ - if (fw_size < 30) - return -EINVAL; + if (fw_size < 30) { + err = -EINVAL; + goto free_fw; + } fw_size -= 30; fw_ptr += 30; @@ -172,8 +174,8 @@ static int mtk_setup_fw(struct hci_dev *hdev) fw_ptr += dlen; } +free_fw: release_firmware(fw); - return err; } From 093dee661d6004738c4cbcbf48835c1e6c6ebae3 Mon Sep 17 00:00:00 2001 From: Yue Haibing Date: Tue, 21 Aug 2018 13:58:08 +0000 Subject: [PATCH 0034/1762] sch_cake: Remove unused including Remove including that don't need it. Signed-off-by: Yue Haibing Signed-off-by: David S. Miller --- net/sched/sch_cake.c | 1 - 1 file changed, 1 deletion(-) diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c index 35fc7252187c..4d26b0823cdf 100644 --- a/net/sched/sch_cake.c +++ b/net/sched/sch_cake.c @@ -64,7 +64,6 @@ #include #include #include -#include #include #include #include From c27f1e2e9f29563cb093e96261e87c1ef83aeb98 Mon Sep 17 00:00:00 2001 From: Yue Haibing Date: Tue, 21 Aug 2018 14:05:42 +0000 Subject: [PATCH 0035/1762] rds: tcp: remove duplicated include from tcp.c Remove duplicated include. Signed-off-by: Yue Haibing Acked-by: Sowmini Varadhan Signed-off-by: David S. Miller --- net/rds/tcp.c | 1 - 1 file changed, 1 deletion(-) diff --git a/net/rds/tcp.c b/net/rds/tcp.c index 2c7b7c352d3e..b9bbcf3d6c63 100644 --- a/net/rds/tcp.c +++ b/net/rds/tcp.c @@ -37,7 +37,6 @@ #include #include #include -#include #include #include "rds.h" From b93c1b5ac8643cc08bb74fa8ae21d6c63dfcb23d Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 21 Aug 2018 10:40:38 -0700 Subject: [PATCH 0036/1762] hv_netvsc: ignore devices that are not PCI Registering another device with same MAC address (such as TAP, VPN or DPDK KNI) will confuse the VF autobinding logic. Restrict the search to only run if the device is known to be a PCI attached VF. Fixes: e8ff40d4bff1 ("hv_netvsc: improve VF device matching") Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/hyperv/netvsc_drv.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 507f68190cb1..1121a1ec407c 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include #include @@ -2039,12 +2040,16 @@ static int netvsc_register_vf(struct net_device *vf_netdev) { struct net_device *ndev; struct net_device_context *net_device_ctx; + struct device *pdev = vf_netdev->dev.parent; struct netvsc_device *netvsc_dev; int ret; if (vf_netdev->addr_len != ETH_ALEN) return NOTIFY_DONE; + if (!pdev || !dev_is_pci(pdev) || dev_is_pf(pdev)) + return NOTIFY_DONE; + /* * We will use the MAC address to locate the synthetic interface to * associate with the VF interface. If we don't find a matching From edfaf94fa705181eeb2fe0c36c0b902dedbd40f1 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Sun, 19 Aug 2018 12:22:05 -0700 Subject: [PATCH 0037/1762] net_sched: improve and refactor tcf_action_put_many() tcf_action_put_many() is mostly called to clean up actions on failure path, but tcf_action_put_many(&actions[acts_deleted]) is used in the ugliest way: it passes a slice of the array and uses an additional NULL at the end to avoid out-of-bound access. acts_deleted is completely unnecessary since we can teach tcf_action_put_many() scan the whole array and checks against NULL pointer. Which also means tcf_action_delete() should set deleted action pointers to NULL to avoid double free. Fixes: 90b73b77d08e ("net: sched: change action API to use array of pointers to actions") Cc: Jiri Pirko Cc: Vlad Buslov Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- net/sched/act_api.c | 31 +++++++++++++++---------------- 1 file changed, 15 insertions(+), 16 deletions(-) diff --git a/net/sched/act_api.c b/net/sched/act_api.c index 229d63c99be2..cd69a6afcf88 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -686,14 +686,18 @@ static int tcf_action_put(struct tc_action *p) return __tcf_action_put(p, false); } +/* Put all actions in this array, skip those NULL's. */ static void tcf_action_put_many(struct tc_action *actions[]) { int i; - for (i = 0; i < TCA_ACT_MAX_PRIO && actions[i]; i++) { + for (i = 0; i < TCA_ACT_MAX_PRIO; i++) { struct tc_action *a = actions[i]; - const struct tc_action_ops *ops = a->ops; + const struct tc_action_ops *ops; + if (!a) + continue; + ops = a->ops; if (tcf_action_put(a)) module_put(ops->owner); } @@ -1176,7 +1180,7 @@ err_out: } static int tcf_action_delete(struct net *net, struct tc_action *actions[], - int *acts_deleted, struct netlink_ext_ack *extack) + struct netlink_ext_ack *extack) { u32 act_index; int ret, i; @@ -1196,20 +1200,17 @@ static int tcf_action_delete(struct net *net, struct tc_action *actions[], } else { /* now do the delete */ ret = ops->delete(net, act_index); - if (ret < 0) { - *acts_deleted = i + 1; + if (ret < 0) return ret; - } } + actions[i] = NULL; } - *acts_deleted = i; return 0; } static int tcf_del_notify(struct net *net, struct nlmsghdr *n, struct tc_action *actions[], - int *acts_deleted, u32 portid, size_t attr_size, - struct netlink_ext_ack *extack) + u32 portid, size_t attr_size, struct netlink_ext_ack *extack) { int ret; struct sk_buff *skb; @@ -1227,7 +1228,7 @@ tcf_del_notify(struct net *net, struct nlmsghdr *n, struct tc_action *actions[], } /* now do the delete */ - ret = tcf_action_delete(net, actions, acts_deleted, extack); + ret = tcf_action_delete(net, actions, extack); if (ret < 0) { NL_SET_ERR_MSG(extack, "Failed to delete TC action"); kfree_skb(skb); @@ -1249,8 +1250,7 @@ tca_action_gd(struct net *net, struct nlattr *nla, struct nlmsghdr *n, struct nlattr *tb[TCA_ACT_MAX_PRIO + 1]; struct tc_action *act; size_t attr_size = 0; - struct tc_action *actions[TCA_ACT_MAX_PRIO + 1] = {}; - int acts_deleted = 0; + struct tc_action *actions[TCA_ACT_MAX_PRIO] = {}; ret = nla_parse_nested(tb, TCA_ACT_MAX_PRIO, nla, NULL, extack); if (ret < 0) @@ -1280,14 +1280,13 @@ tca_action_gd(struct net *net, struct nlattr *nla, struct nlmsghdr *n, if (event == RTM_GETACTION) ret = tcf_get_notify(net, portid, n, actions, event, extack); else { /* delete */ - ret = tcf_del_notify(net, n, actions, &acts_deleted, portid, - attr_size, extack); + ret = tcf_del_notify(net, n, actions, portid, attr_size, extack); if (ret) goto err; - return ret; + return 0; } err: - tcf_action_put_many(&actions[acts_deleted]); + tcf_action_put_many(actions); return ret; } From 97a3f84f2c84f81b859aedd2c186df09c2ee21a6 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Sun, 19 Aug 2018 12:22:06 -0700 Subject: [PATCH 0038/1762] net_sched: remove unnecessary ops->delete() All ops->delete() wants is getting the tn->idrinfo, but we already have tc_action before calling ops->delete(), and tc_action has a pointer ->idrinfo. More importantly, each type of action does the same thing, that is, just calling tcf_idr_delete_index(). So it can be just removed. Fixes: b409074e6693 ("net: sched: add 'delete' function to action ops") Cc: Jiri Pirko Cc: Vlad Buslov Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- include/net/act_api.h | 2 -- net/sched/act_api.c | 15 +++++++-------- net/sched/act_bpf.c | 8 -------- net/sched/act_connmark.c | 8 -------- net/sched/act_csum.c | 8 -------- net/sched/act_gact.c | 8 -------- net/sched/act_ife.c | 8 -------- net/sched/act_ipt.c | 16 ---------------- net/sched/act_mirred.c | 8 -------- net/sched/act_nat.c | 8 -------- net/sched/act_pedit.c | 8 -------- net/sched/act_police.c | 8 -------- net/sched/act_sample.c | 8 -------- net/sched/act_simple.c | 8 -------- net/sched/act_skbedit.c | 8 -------- net/sched/act_skbmod.c | 8 -------- net/sched/act_tunnel_key.c | 8 -------- net/sched/act_vlan.c | 8 -------- 18 files changed, 7 insertions(+), 146 deletions(-) diff --git a/include/net/act_api.h b/include/net/act_api.h index 1ad5b19e83a9..e32708491d83 100644 --- a/include/net/act_api.h +++ b/include/net/act_api.h @@ -102,7 +102,6 @@ struct tc_action_ops { size_t (*get_fill_size)(const struct tc_action *act); struct net_device *(*get_dev)(const struct tc_action *a); void (*put_dev)(struct net_device *dev); - int (*delete)(struct net *net, u32 index); }; struct tc_action_net { @@ -158,7 +157,6 @@ void tcf_idr_insert(struct tc_action_net *tn, struct tc_action *a); void tcf_idr_cleanup(struct tc_action_net *tn, u32 index); int tcf_idr_check_alloc(struct tc_action_net *tn, u32 *index, struct tc_action **a, int bind); -int tcf_idr_delete_index(struct tc_action_net *tn, u32 index); int __tcf_idr_release(struct tc_action *a, bool bind, bool strict); static inline int tcf_idr_release(struct tc_action *a, bool bind) diff --git a/net/sched/act_api.c b/net/sched/act_api.c index cd69a6afcf88..00bf7d2b0bdd 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -337,9 +337,8 @@ bool tcf_idr_check(struct tc_action_net *tn, u32 index, struct tc_action **a, } EXPORT_SYMBOL(tcf_idr_check); -int tcf_idr_delete_index(struct tc_action_net *tn, u32 index) +static int tcf_idr_delete_index(struct tcf_idrinfo *idrinfo, u32 index) { - struct tcf_idrinfo *idrinfo = tn->idrinfo; struct tc_action *p; int ret = 0; @@ -370,7 +369,6 @@ int tcf_idr_delete_index(struct tc_action_net *tn, u32 index) spin_unlock(&idrinfo->lock); return ret; } -EXPORT_SYMBOL(tcf_idr_delete_index); int tcf_idr_create(struct tc_action_net *tn, u32 index, struct nlattr *est, struct tc_action **a, const struct tc_action_ops *ops, @@ -1182,24 +1180,25 @@ err_out: static int tcf_action_delete(struct net *net, struct tc_action *actions[], struct netlink_ext_ack *extack) { - u32 act_index; - int ret, i; + int i; for (i = 0; i < TCA_ACT_MAX_PRIO && actions[i]; i++) { struct tc_action *a = actions[i]; const struct tc_action_ops *ops = a->ops; - /* Actions can be deleted concurrently so we must save their * type and id to search again after reference is released. */ - act_index = a->tcfa_index; + struct tcf_idrinfo *idrinfo = a->idrinfo; + u32 act_index = a->tcfa_index; if (tcf_action_put(a)) { /* last reference, action was deleted concurrently */ module_put(ops->owner); } else { + int ret; + /* now do the delete */ - ret = ops->delete(net, act_index); + ret = tcf_idr_delete_index(idrinfo, act_index); if (ret < 0) return ret; } diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c index d30b23e42436..0c68bc9cf0b4 100644 --- a/net/sched/act_bpf.c +++ b/net/sched/act_bpf.c @@ -395,13 +395,6 @@ static int tcf_bpf_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tcf_bpf_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, bpf_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_bpf_ops __read_mostly = { .kind = "bpf", .type = TCA_ACT_BPF, @@ -412,7 +405,6 @@ static struct tc_action_ops act_bpf_ops __read_mostly = { .init = tcf_bpf_init, .walk = tcf_bpf_walker, .lookup = tcf_bpf_search, - .delete = tcf_bpf_delete, .size = sizeof(struct tcf_bpf), }; diff --git a/net/sched/act_connmark.c b/net/sched/act_connmark.c index 54c0bf54f2ac..6f0f273f1139 100644 --- a/net/sched/act_connmark.c +++ b/net/sched/act_connmark.c @@ -198,13 +198,6 @@ static int tcf_connmark_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tcf_connmark_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, connmark_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_connmark_ops = { .kind = "connmark", .type = TCA_ACT_CONNMARK, @@ -214,7 +207,6 @@ static struct tc_action_ops act_connmark_ops = { .init = tcf_connmark_init, .walk = tcf_connmark_walker, .lookup = tcf_connmark_search, - .delete = tcf_connmark_delete, .size = sizeof(struct tcf_connmark_info), }; diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c index e698d3fe2080..b8a67ae3105a 100644 --- a/net/sched/act_csum.c +++ b/net/sched/act_csum.c @@ -659,13 +659,6 @@ static size_t tcf_csum_get_fill_size(const struct tc_action *act) return nla_total_size(sizeof(struct tc_csum)); } -static int tcf_csum_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, csum_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_csum_ops = { .kind = "csum", .type = TCA_ACT_CSUM, @@ -677,7 +670,6 @@ static struct tc_action_ops act_csum_ops = { .walk = tcf_csum_walker, .lookup = tcf_csum_search, .get_fill_size = tcf_csum_get_fill_size, - .delete = tcf_csum_delete, .size = sizeof(struct tcf_csum), }; diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c index 6a3f25a8ffb3..cd1d9bd32ef9 100644 --- a/net/sched/act_gact.c +++ b/net/sched/act_gact.c @@ -243,13 +243,6 @@ static size_t tcf_gact_get_fill_size(const struct tc_action *act) return sz; } -static int tcf_gact_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, gact_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_gact_ops = { .kind = "gact", .type = TCA_ACT_GACT, @@ -261,7 +254,6 @@ static struct tc_action_ops act_gact_ops = { .walk = tcf_gact_walker, .lookup = tcf_gact_search, .get_fill_size = tcf_gact_get_fill_size, - .delete = tcf_gact_delete, .size = sizeof(struct tcf_gact), }; diff --git a/net/sched/act_ife.c b/net/sched/act_ife.c index d1081bdf1bdb..92fcf8ba5bca 100644 --- a/net/sched/act_ife.c +++ b/net/sched/act_ife.c @@ -853,13 +853,6 @@ static int tcf_ife_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tcf_ife_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, ife_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_ife_ops = { .kind = "ife", .type = TCA_ACT_IFE, @@ -870,7 +863,6 @@ static struct tc_action_ops act_ife_ops = { .init = tcf_ife_init, .walk = tcf_ife_walker, .lookup = tcf_ife_search, - .delete = tcf_ife_delete, .size = sizeof(struct tcf_ife_info), }; diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c index 51f235bbeb5b..23273b5303fd 100644 --- a/net/sched/act_ipt.c +++ b/net/sched/act_ipt.c @@ -337,13 +337,6 @@ static int tcf_ipt_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tcf_ipt_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, ipt_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_ipt_ops = { .kind = "ipt", .type = TCA_ACT_IPT, @@ -354,7 +347,6 @@ static struct tc_action_ops act_ipt_ops = { .init = tcf_ipt_init, .walk = tcf_ipt_walker, .lookup = tcf_ipt_search, - .delete = tcf_ipt_delete, .size = sizeof(struct tcf_ipt), }; @@ -395,13 +387,6 @@ static int tcf_xt_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tcf_xt_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, xt_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_xt_ops = { .kind = "xt", .type = TCA_ACT_XT, @@ -412,7 +397,6 @@ static struct tc_action_ops act_xt_ops = { .init = tcf_xt_init, .walk = tcf_xt_walker, .lookup = tcf_xt_search, - .delete = tcf_xt_delete, .size = sizeof(struct tcf_ipt), }; diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c index 38fd20f10f67..8bf66d0a6800 100644 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@ -395,13 +395,6 @@ static void tcf_mirred_put_dev(struct net_device *dev) dev_put(dev); } -static int tcf_mirred_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, mirred_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_mirred_ops = { .kind = "mirred", .type = TCA_ACT_MIRRED, @@ -416,7 +409,6 @@ static struct tc_action_ops act_mirred_ops = { .size = sizeof(struct tcf_mirred), .get_dev = tcf_mirred_get_dev, .put_dev = tcf_mirred_put_dev, - .delete = tcf_mirred_delete, }; static __net_init int mirred_init_net(struct net *net) diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c index 822e903bfc25..4313aa102440 100644 --- a/net/sched/act_nat.c +++ b/net/sched/act_nat.c @@ -300,13 +300,6 @@ static int tcf_nat_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tcf_nat_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, nat_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_nat_ops = { .kind = "nat", .type = TCA_ACT_NAT, @@ -316,7 +309,6 @@ static struct tc_action_ops act_nat_ops = { .init = tcf_nat_init, .walk = tcf_nat_walker, .lookup = tcf_nat_search, - .delete = tcf_nat_delete, .size = sizeof(struct tcf_nat), }; diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c index 8a7a7cb94e83..107034070019 100644 --- a/net/sched/act_pedit.c +++ b/net/sched/act_pedit.c @@ -460,13 +460,6 @@ static int tcf_pedit_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tcf_pedit_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, pedit_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_pedit_ops = { .kind = "pedit", .type = TCA_ACT_PEDIT, @@ -477,7 +470,6 @@ static struct tc_action_ops act_pedit_ops = { .init = tcf_pedit_init, .walk = tcf_pedit_walker, .lookup = tcf_pedit_search, - .delete = tcf_pedit_delete, .size = sizeof(struct tcf_pedit), }; diff --git a/net/sched/act_police.c b/net/sched/act_police.c index 06f0742db593..5d8bfa878477 100644 --- a/net/sched/act_police.c +++ b/net/sched/act_police.c @@ -320,13 +320,6 @@ static int tcf_police_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tcf_police_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, police_net_id); - - return tcf_idr_delete_index(tn, index); -} - MODULE_AUTHOR("Alexey Kuznetsov"); MODULE_DESCRIPTION("Policing actions"); MODULE_LICENSE("GPL"); @@ -340,7 +333,6 @@ static struct tc_action_ops act_police_ops = { .init = tcf_police_init, .walk = tcf_police_walker, .lookup = tcf_police_search, - .delete = tcf_police_delete, .size = sizeof(struct tcf_police), }; diff --git a/net/sched/act_sample.c b/net/sched/act_sample.c index 207b4132d1b0..44e9c00657bc 100644 --- a/net/sched/act_sample.c +++ b/net/sched/act_sample.c @@ -232,13 +232,6 @@ static int tcf_sample_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tcf_sample_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, sample_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_sample_ops = { .kind = "sample", .type = TCA_ACT_SAMPLE, @@ -249,7 +242,6 @@ static struct tc_action_ops act_sample_ops = { .cleanup = tcf_sample_cleanup, .walk = tcf_sample_walker, .lookup = tcf_sample_search, - .delete = tcf_sample_delete, .size = sizeof(struct tcf_sample), }; diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c index e616523ba3c1..52400d49f81f 100644 --- a/net/sched/act_simple.c +++ b/net/sched/act_simple.c @@ -196,13 +196,6 @@ static int tcf_simp_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tcf_simp_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, simp_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_simp_ops = { .kind = "simple", .type = TCA_ACT_SIMP, @@ -213,7 +206,6 @@ static struct tc_action_ops act_simp_ops = { .init = tcf_simp_init, .walk = tcf_simp_walker, .lookup = tcf_simp_search, - .delete = tcf_simp_delete, .size = sizeof(struct tcf_defact), }; diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c index 926d7bc4a89d..73e44ce2a883 100644 --- a/net/sched/act_skbedit.c +++ b/net/sched/act_skbedit.c @@ -299,13 +299,6 @@ static int tcf_skbedit_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tcf_skbedit_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, skbedit_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_skbedit_ops = { .kind = "skbedit", .type = TCA_ACT_SKBEDIT, @@ -316,7 +309,6 @@ static struct tc_action_ops act_skbedit_ops = { .cleanup = tcf_skbedit_cleanup, .walk = tcf_skbedit_walker, .lookup = tcf_skbedit_search, - .delete = tcf_skbedit_delete, .size = sizeof(struct tcf_skbedit), }; diff --git a/net/sched/act_skbmod.c b/net/sched/act_skbmod.c index d6a1af0c4171..588077fafd6c 100644 --- a/net/sched/act_skbmod.c +++ b/net/sched/act_skbmod.c @@ -259,13 +259,6 @@ static int tcf_skbmod_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tcf_skbmod_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, skbmod_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_skbmod_ops = { .kind = "skbmod", .type = TCA_ACT_SKBMOD, @@ -276,7 +269,6 @@ static struct tc_action_ops act_skbmod_ops = { .cleanup = tcf_skbmod_cleanup, .walk = tcf_skbmod_walker, .lookup = tcf_skbmod_search, - .delete = tcf_skbmod_delete, .size = sizeof(struct tcf_skbmod), }; diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c index 8f09cf08d8fe..420759153d5f 100644 --- a/net/sched/act_tunnel_key.c +++ b/net/sched/act_tunnel_key.c @@ -548,13 +548,6 @@ static int tunnel_key_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tunnel_key_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, tunnel_key_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_tunnel_key_ops = { .kind = "tunnel_key", .type = TCA_ACT_TUNNEL_KEY, @@ -565,7 +558,6 @@ static struct tc_action_ops act_tunnel_key_ops = { .cleanup = tunnel_key_release, .walk = tunnel_key_walker, .lookup = tunnel_key_search, - .delete = tunnel_key_delete, .size = sizeof(struct tcf_tunnel_key), }; diff --git a/net/sched/act_vlan.c b/net/sched/act_vlan.c index 209e70ad2c09..033d273afe50 100644 --- a/net/sched/act_vlan.c +++ b/net/sched/act_vlan.c @@ -296,13 +296,6 @@ static int tcf_vlan_search(struct net *net, struct tc_action **a, u32 index, return tcf_idr_search(tn, a, index); } -static int tcf_vlan_delete(struct net *net, u32 index) -{ - struct tc_action_net *tn = net_generic(net, vlan_net_id); - - return tcf_idr_delete_index(tn, index); -} - static struct tc_action_ops act_vlan_ops = { .kind = "vlan", .type = TCA_ACT_VLAN, @@ -313,7 +306,6 @@ static struct tc_action_ops act_vlan_ops = { .cleanup = tcf_vlan_cleanup, .walk = tcf_vlan_walker, .lookup = tcf_vlan_search, - .delete = tcf_vlan_delete, .size = sizeof(struct tcf_vlan), }; From b144e7ec51a132eac00a68bf897b6349d810022f Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Sun, 19 Aug 2018 12:22:07 -0700 Subject: [PATCH 0039/1762] net_sched: remove unused parameter for tcf_action_delete() Fixes: 16af6067392c ("net: sched: implement reference counted action release") Cc: Jiri Pirko Cc: Vlad Buslov Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- net/sched/act_api.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/net/sched/act_api.c b/net/sched/act_api.c index 00bf7d2b0bdd..ba55226928a3 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -1177,8 +1177,7 @@ err_out: return err; } -static int tcf_action_delete(struct net *net, struct tc_action *actions[], - struct netlink_ext_ack *extack) +static int tcf_action_delete(struct net *net, struct tc_action *actions[]) { int i; @@ -1227,7 +1226,7 @@ tcf_del_notify(struct net *net, struct nlmsghdr *n, struct tc_action *actions[], } /* now do the delete */ - ret = tcf_action_delete(net, actions, extack); + ret = tcf_action_delete(net, actions); if (ret < 0) { NL_SET_ERR_MSG(extack, "Failed to delete TC action"); kfree_skb(skb); From 7d485c451fc82f8ae431cdb379521bc6d0641064 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Sun, 19 Aug 2018 12:22:08 -0700 Subject: [PATCH 0040/1762] net_sched: remove unused tcf_idr_check() tcf_idr_check() is replaced by tcf_idr_check_alloc(), and __tcf_idr_check() now can be folded into tcf_idr_search(). Fixes: 0190c1d452a9 ("net: sched: atomically check-allocate action") Cc: Jiri Pirko Cc: Vlad Buslov Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- include/net/act_api.h | 2 -- net/sched/act_api.c | 22 +++------------------- 2 files changed, 3 insertions(+), 21 deletions(-) diff --git a/include/net/act_api.h b/include/net/act_api.h index e32708491d83..eaa0e8b93d5b 100644 --- a/include/net/act_api.h +++ b/include/net/act_api.h @@ -147,8 +147,6 @@ int tcf_generic_walker(struct tc_action_net *tn, struct sk_buff *skb, const struct tc_action_ops *ops, struct netlink_ext_ack *extack); int tcf_idr_search(struct tc_action_net *tn, struct tc_action **a, u32 index); -bool tcf_idr_check(struct tc_action_net *tn, u32 index, struct tc_action **a, - int bind); int tcf_idr_create(struct tc_action_net *tn, u32 index, struct nlattr *est, struct tc_action **a, const struct tc_action_ops *ops, int bind, bool cpustats); diff --git a/net/sched/act_api.c b/net/sched/act_api.c index ba55226928a3..d76948f02a02 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -300,21 +300,17 @@ int tcf_generic_walker(struct tc_action_net *tn, struct sk_buff *skb, } EXPORT_SYMBOL(tcf_generic_walker); -static bool __tcf_idr_check(struct tc_action_net *tn, u32 index, - struct tc_action **a, int bind) +int tcf_idr_search(struct tc_action_net *tn, struct tc_action **a, u32 index) { struct tcf_idrinfo *idrinfo = tn->idrinfo; struct tc_action *p; spin_lock(&idrinfo->lock); p = idr_find(&idrinfo->action_idr, index); - if (IS_ERR(p)) { + if (IS_ERR(p)) p = NULL; - } else if (p) { + else if (p) refcount_inc(&p->tcfa_refcnt); - if (bind) - atomic_inc(&p->tcfa_bindcnt); - } spin_unlock(&idrinfo->lock); if (p) { @@ -323,20 +319,8 @@ static bool __tcf_idr_check(struct tc_action_net *tn, u32 index, } return false; } - -int tcf_idr_search(struct tc_action_net *tn, struct tc_action **a, u32 index) -{ - return __tcf_idr_check(tn, index, a, 0); -} EXPORT_SYMBOL(tcf_idr_search); -bool tcf_idr_check(struct tc_action_net *tn, u32 index, struct tc_action **a, - int bind) -{ - return __tcf_idr_check(tn, index, a, bind); -} -EXPORT_SYMBOL(tcf_idr_check); - static int tcf_idr_delete_index(struct tcf_idrinfo *idrinfo, u32 index) { struct tc_action *p; From 244cd96adb5f5ab39551081fb1f9009a54bb12ee Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Sun, 19 Aug 2018 12:22:09 -0700 Subject: [PATCH 0041/1762] net_sched: remove list_head from tc_action After commit 90b73b77d08e, list_head is no longer needed. Now we just need to convert the list iteration to array iteration for drivers. Fixes: 90b73b77d08e ("net: sched: change action API to use array of pointers to actions") Cc: Jiri Pirko Cc: Vlad Buslov Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 6 ++--- .../ethernet/chelsio/cxgb4/cxgb4_tc_flower.c | 10 +++----- .../net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c | 5 ++-- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 6 ++--- .../net/ethernet/mellanox/mlx5/core/en_tc.c | 19 +++++++------- .../net/ethernet/mellanox/mlxsw/spectrum.c | 3 +-- .../ethernet/mellanox/mlxsw/spectrum_flower.c | 6 ++--- .../ethernet/netronome/nfp/flower/action.c | 6 ++--- .../net/ethernet/qlogic/qede/qede_filter.c | 6 ++--- .../net/ethernet/stmicro/stmmac/stmmac_tc.c | 5 ++-- include/net/act_api.h | 1 - include/net/pkt_cls.h | 25 +++++++++++-------- net/dsa/slave.c | 4 +-- net/sched/act_api.c | 1 - 14 files changed, 43 insertions(+), 60 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c index 139d96c5a023..092c817f8f11 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c @@ -110,16 +110,14 @@ static int bnxt_tc_parse_actions(struct bnxt *bp, struct tcf_exts *tc_exts) { const struct tc_action *tc_act; - LIST_HEAD(tc_actions); - int rc; + int i, rc; if (!tcf_exts_has_actions(tc_exts)) { netdev_info(bp->dev, "no actions"); return -EINVAL; } - tcf_exts_to_list(tc_exts, &tc_actions); - list_for_each_entry(tc_act, &tc_actions, list) { + tcf_exts_for_each_action(i, tc_act, tc_exts) { /* Drop action */ if (is_tcf_gact_shot(tc_act)) { actions->flags |= BNXT_TC_ACTION_FLAG_DROP; diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c index 623f73dd7738..c116f96956fe 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c @@ -417,10 +417,9 @@ static void cxgb4_process_flow_actions(struct net_device *in, struct ch_filter_specification *fs) { const struct tc_action *a; - LIST_HEAD(actions); + int i; - tcf_exts_to_list(cls->exts, &actions); - list_for_each_entry(a, &actions, list) { + tcf_exts_for_each_action(i, a, cls->exts) { if (is_tcf_gact_ok(a)) { fs->action = FILTER_PASS; } else if (is_tcf_gact_shot(a)) { @@ -591,10 +590,9 @@ static int cxgb4_validate_flow_actions(struct net_device *dev, bool act_redir = false; bool act_pedit = false; bool act_vlan = false; - LIST_HEAD(actions); + int i; - tcf_exts_to_list(cls->exts, &actions); - list_for_each_entry(a, &actions, list) { + tcf_exts_for_each_action(i, a, cls->exts) { if (is_tcf_gact_ok(a)) { /* Do nothing */ } else if (is_tcf_gact_shot(a)) { diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c index 18eb2aedd4cb..c7d2b4dc7568 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c @@ -93,14 +93,13 @@ static int fill_action_fields(struct adapter *adap, unsigned int num_actions = 0; const struct tc_action *a; struct tcf_exts *exts; - LIST_HEAD(actions); + int i; exts = cls->knode.exts; if (!tcf_exts_has_actions(exts)) return -EINVAL; - tcf_exts_to_list(exts, &actions); - list_for_each_entry(a, &actions, list) { + tcf_exts_for_each_action(i, a, exts) { /* Don't allow more than one action per rule. */ if (num_actions) return -EINVAL; diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 447098005490..af4c9ae7f432 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -9171,14 +9171,12 @@ static int parse_tc_actions(struct ixgbe_adapter *adapter, struct tcf_exts *exts, u64 *action, u8 *queue) { const struct tc_action *a; - LIST_HEAD(actions); + int i; if (!tcf_exts_has_actions(exts)) return -EINVAL; - tcf_exts_to_list(exts, &actions); - list_for_each_entry(a, &actions, list) { - + tcf_exts_for_each_action(i, a, exts) { /* Drop action */ if (is_tcf_gact_shot(a)) { *action = IXGBE_FDIR_DROP_QUEUE; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 9131a1376e7d..9fed54017659 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -1982,14 +1982,15 @@ static bool modify_header_match_supported(struct mlx5_flow_spec *spec, goto out_ok; modify_ip_header = false; - tcf_exts_to_list(exts, &actions); - list_for_each_entry(a, &actions, list) { + tcf_exts_for_each_action(i, a, exts) { + int k; + if (!is_tcf_pedit(a)) continue; nkeys = tcf_pedit_nkeys(a); - for (i = 0; i < nkeys; i++) { - htype = tcf_pedit_htype(a, i); + for (k = 0; k < nkeys; k++) { + htype = tcf_pedit_htype(a, k); if (htype == TCA_PEDIT_KEY_EX_HDR_TYPE_IP4 || htype == TCA_PEDIT_KEY_EX_HDR_TYPE_IP6) { modify_ip_header = true; @@ -2053,15 +2054,14 @@ static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, const struct tc_action *a; LIST_HEAD(actions); u32 action = 0; - int err; + int err, i; if (!tcf_exts_has_actions(exts)) return -EINVAL; attr->flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; - tcf_exts_to_list(exts, &actions); - list_for_each_entry(a, &actions, list) { + tcf_exts_for_each_action(i, a, exts) { if (is_tcf_gact_shot(a)) { action |= MLX5_FLOW_CONTEXT_ACTION_DROP; if (MLX5_CAP_FLOWTABLE(priv->mdev, @@ -2666,7 +2666,7 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, LIST_HEAD(actions); bool encap = false; u32 action = 0; - int err; + int err, i; if (!tcf_exts_has_actions(exts)) return -EINVAL; @@ -2674,8 +2674,7 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, attr->in_rep = rpriv->rep; attr->in_mdev = priv->mdev; - tcf_exts_to_list(exts, &actions); - list_for_each_entry(a, &actions, list) { + tcf_exts_for_each_action(i, a, exts) { if (is_tcf_gact_shot(a)) { action |= MLX5_FLOW_CONTEXT_ACTION_DROP | MLX5_FLOW_CONTEXT_ACTION_COUNT; diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 6070d1591d1e..930700413b1d 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -1346,8 +1346,7 @@ static int mlxsw_sp_port_add_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port, return -ENOMEM; mall_tc_entry->cookie = f->cookie; - tcf_exts_to_list(f->exts, &actions); - a = list_first_entry(&actions, struct tc_action, list); + a = tcf_exts_first_action(f->exts); if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) { struct mlxsw_sp_port_mall_mirror_tc_entry *mirror; diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c index ebd1b24ebaa5..8d211972c5e9 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c @@ -21,8 +21,7 @@ static int mlxsw_sp_flower_parse_actions(struct mlxsw_sp *mlxsw_sp, struct netlink_ext_ack *extack) { const struct tc_action *a; - LIST_HEAD(actions); - int err; + int err, i; if (!tcf_exts_has_actions(exts)) return 0; @@ -32,8 +31,7 @@ static int mlxsw_sp_flower_parse_actions(struct mlxsw_sp *mlxsw_sp, if (err) return err; - tcf_exts_to_list(exts, &actions); - list_for_each_entry(a, &actions, list) { + tcf_exts_for_each_action(i, a, exts) { if (is_tcf_gact_ok(a)) { err = mlxsw_sp_acl_rulei_act_terminate(rulei); if (err) { diff --git a/drivers/net/ethernet/netronome/nfp/flower/action.c b/drivers/net/ethernet/netronome/nfp/flower/action.c index 0ba0356ec4e6..9044496803e6 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/action.c +++ b/drivers/net/ethernet/netronome/nfp/flower/action.c @@ -796,11 +796,10 @@ int nfp_flower_compile_action(struct nfp_app *app, struct net_device *netdev, struct nfp_fl_payload *nfp_flow) { - int act_len, act_cnt, err, tun_out_cnt, out_cnt; + int act_len, act_cnt, err, tun_out_cnt, out_cnt, i; enum nfp_flower_tun_type tun_type; const struct tc_action *a; u32 csum_updated = 0; - LIST_HEAD(actions); memset(nfp_flow->action_data, 0, NFP_FL_MAX_A_SIZ); nfp_flow->meta.act_len = 0; @@ -810,8 +809,7 @@ int nfp_flower_compile_action(struct nfp_app *app, tun_out_cnt = 0; out_cnt = 0; - tcf_exts_to_list(flow->exts, &actions); - list_for_each_entry(a, &actions, list) { + tcf_exts_for_each_action(i, a, flow->exts) { err = nfp_flower_loop_action(app, a, flow, nfp_flow, &act_len, netdev, &tun_type, &tun_out_cnt, &out_cnt, &csum_updated); diff --git a/drivers/net/ethernet/qlogic/qede/qede_filter.c b/drivers/net/ethernet/qlogic/qede/qede_filter.c index 9673d19308e6..b16ce7d93caf 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_filter.c +++ b/drivers/net/ethernet/qlogic/qede/qede_filter.c @@ -2006,18 +2006,16 @@ unlock: static int qede_parse_actions(struct qede_dev *edev, struct tcf_exts *exts) { - int rc = -EINVAL, num_act = 0; + int rc = -EINVAL, num_act = 0, i; const struct tc_action *a; bool is_drop = false; - LIST_HEAD(actions); if (!tcf_exts_has_actions(exts)) { DP_NOTICE(edev, "No tc actions received\n"); return rc; } - tcf_exts_to_list(exts, &actions); - list_for_each_entry(a, &actions, list) { + tcf_exts_for_each_action(i, a, exts) { num_act++; if (is_tcf_gact_shot(a)) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c index 1a96dd9c1091..531294f4978b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c @@ -61,7 +61,7 @@ static int tc_fill_actions(struct stmmac_tc_entry *entry, struct stmmac_tc_entry *action_entry = entry; const struct tc_action *act; struct tcf_exts *exts; - LIST_HEAD(actions); + int i; exts = cls->knode.exts; if (!tcf_exts_has_actions(exts)) @@ -69,8 +69,7 @@ static int tc_fill_actions(struct stmmac_tc_entry *entry, if (frag) action_entry = frag; - tcf_exts_to_list(exts, &actions); - list_for_each_entry(act, &actions, list) { + tcf_exts_for_each_action(i, act, exts) { /* Accept */ if (is_tcf_gact_ok(act)) { action_entry->val.af = 1; diff --git a/include/net/act_api.h b/include/net/act_api.h index eaa0e8b93d5b..f9c4b871af88 100644 --- a/include/net/act_api.h +++ b/include/net/act_api.h @@ -23,7 +23,6 @@ struct tc_action { const struct tc_action_ops *ops; __u32 type; /* for backward compat(TCA_OLD_COMPAT) */ __u32 order; - struct list_head list; struct tcf_idrinfo *idrinfo; u32 tcfa_index; diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h index ef727f71336e..c17d51865469 100644 --- a/include/net/pkt_cls.h +++ b/include/net/pkt_cls.h @@ -298,19 +298,13 @@ static inline void tcf_exts_put_net(struct tcf_exts *exts) #endif } -static inline void tcf_exts_to_list(const struct tcf_exts *exts, - struct list_head *actions) -{ #ifdef CONFIG_NET_CLS_ACT - int i; - - for (i = 0; i < exts->nr_actions; i++) { - struct tc_action *a = exts->actions[i]; - - list_add_tail(&a->list, actions); - } +#define tcf_exts_for_each_action(i, a, exts) \ + for (i = 0; i < TCA_ACT_MAX_PRIO && ((a) = (exts)->actions[i]); i++) +#else +#define tcf_exts_for_each_action(i, a, exts) \ + for (; 0; ) #endif -} static inline void tcf_exts_stats_update(const struct tcf_exts *exts, @@ -361,6 +355,15 @@ static inline bool tcf_exts_has_one_action(struct tcf_exts *exts) #endif } +static inline struct tc_action *tcf_exts_first_action(struct tcf_exts *exts) +{ +#ifdef CONFIG_NET_CLS_ACT + return exts->actions[0]; +#else + return NULL; +#endif +} + /** * tcf_exts_exec - execute tc filter extensions * @skb: socket buffer diff --git a/net/dsa/slave.c b/net/dsa/slave.c index 962c4fd338ba..1c45c1d6d241 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -767,7 +767,6 @@ static int dsa_slave_add_cls_matchall(struct net_device *dev, const struct tc_action *a; struct dsa_port *to_dp; int err = -EOPNOTSUPP; - LIST_HEAD(actions); if (!ds->ops->port_mirror_add) return err; @@ -775,8 +774,7 @@ static int dsa_slave_add_cls_matchall(struct net_device *dev, if (!tcf_exts_has_one_action(cls->exts)) return err; - tcf_exts_to_list(cls->exts, &actions); - a = list_first_entry(&actions, struct tc_action, list); + a = tcf_exts_first_action(cls->exts); if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) { struct dsa_mall_mirror_tc_entry *mirror; diff --git a/net/sched/act_api.c b/net/sched/act_api.c index d76948f02a02..db83dac1e7f4 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -391,7 +391,6 @@ int tcf_idr_create(struct tc_action_net *tn, u32 index, struct nlattr *est, p->idrinfo = idrinfo; p->ops = ops; - INIT_LIST_HEAD(&p->list); *a = p; return 0; err3: From a0c2e90fe131d9a7440ac05c9c31fc35dfac2fa8 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Sun, 19 Aug 2018 12:22:10 -0700 Subject: [PATCH 0042/1762] net_sched: remove unused tcfa_capab Cc: Jamal Hadi Salim Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- include/net/act_api.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/include/net/act_api.h b/include/net/act_api.h index f9c4b871af88..970303448c90 100644 --- a/include/net/act_api.h +++ b/include/net/act_api.h @@ -28,7 +28,6 @@ struct tc_action { u32 tcfa_index; refcount_t tcfa_refcnt; atomic_t tcfa_bindcnt; - u32 tcfa_capab; int tcfa_action; struct tcf_t tcfa_tm; struct gnet_stats_basic_packed tcfa_bstats; @@ -43,7 +42,6 @@ struct tc_action { #define tcf_index common.tcfa_index #define tcf_refcnt common.tcfa_refcnt #define tcf_bindcnt common.tcfa_bindcnt -#define tcf_capab common.tcfa_capab #define tcf_action common.tcfa_action #define tcf_tm common.tcfa_tm #define tcf_bstats common.tcfa_bstats From 8ce5be1c899d31f3cd047e5f707cd9dbfb81e076 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Sun, 19 Aug 2018 12:22:11 -0700 Subject: [PATCH 0043/1762] Revert "net: sched: act_ife: disable bh when taking ife_mod_lock" This reverts commit 42c625a486f3 ("net: sched: act_ife: disable bh when taking ife_mod_lock"), because what ife_mod_lock protects is absolutely not touched in rate est timer BH context, they have no race. A better fix is following up. Cc: Vlad Buslov Cc: Jamal Hadi Salim Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- net/sched/act_ife.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/net/sched/act_ife.c b/net/sched/act_ife.c index 92fcf8ba5bca..9decbb74b3ac 100644 --- a/net/sched/act_ife.c +++ b/net/sched/act_ife.c @@ -167,16 +167,16 @@ static struct tcf_meta_ops *find_ife_oplist(u16 metaid) { struct tcf_meta_ops *o; - read_lock_bh(&ife_mod_lock); + read_lock(&ife_mod_lock); list_for_each_entry(o, &ifeoplist, list) { if (o->metaid == metaid) { if (!try_module_get(o->owner)) o = NULL; - read_unlock_bh(&ife_mod_lock); + read_unlock(&ife_mod_lock); return o; } } - read_unlock_bh(&ife_mod_lock); + read_unlock(&ife_mod_lock); return NULL; } @@ -190,12 +190,12 @@ int register_ife_op(struct tcf_meta_ops *mops) !mops->get || !mops->alloc) return -EINVAL; - write_lock_bh(&ife_mod_lock); + write_lock(&ife_mod_lock); list_for_each_entry(m, &ifeoplist, list) { if (m->metaid == mops->metaid || (strcmp(mops->name, m->name) == 0)) { - write_unlock_bh(&ife_mod_lock); + write_unlock(&ife_mod_lock); return -EEXIST; } } @@ -204,7 +204,7 @@ int register_ife_op(struct tcf_meta_ops *mops) mops->release = ife_release_meta_gen; list_add_tail(&mops->list, &ifeoplist); - write_unlock_bh(&ife_mod_lock); + write_unlock(&ife_mod_lock); return 0; } EXPORT_SYMBOL_GPL(unregister_ife_op); @@ -214,7 +214,7 @@ int unregister_ife_op(struct tcf_meta_ops *mops) struct tcf_meta_ops *m; int err = -ENOENT; - write_lock_bh(&ife_mod_lock); + write_lock(&ife_mod_lock); list_for_each_entry(m, &ifeoplist, list) { if (m->metaid == mops->metaid) { list_del(&mops->list); @@ -222,7 +222,7 @@ int unregister_ife_op(struct tcf_meta_ops *mops) break; } } - write_unlock_bh(&ife_mod_lock); + write_unlock(&ife_mod_lock); return err; } @@ -343,13 +343,13 @@ static int use_all_metadata(struct tcf_ife_info *ife) int rc = 0; int installed = 0; - read_lock_bh(&ife_mod_lock); + read_lock(&ife_mod_lock); list_for_each_entry(o, &ifeoplist, list) { rc = add_metainfo(ife, o->metaid, NULL, 0, true); if (rc == 0) installed += 1; } - read_unlock_bh(&ife_mod_lock); + read_unlock(&ife_mod_lock); if (installed) return 0; From 4e407ff5cd67ec76eeeea1deec227b7982dc7f66 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Sun, 19 Aug 2018 12:22:12 -0700 Subject: [PATCH 0044/1762] act_ife: move tcfa_lock down to where necessary The only time we need to take tcfa_lock is when adding a new metainfo to an existing ife->metalist. We don't need to take tcfa_lock so early and so broadly in tcf_ife_init(). This means we can always take ife_mod_lock first, avoid the reverse locking ordering warning as reported by Vlad. Reported-by: Vlad Buslov Tested-by: Vlad Buslov Cc: Vlad Buslov Cc: Jamal Hadi Salim Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- net/sched/act_ife.c | 38 +++++++++++++------------------------- 1 file changed, 13 insertions(+), 25 deletions(-) diff --git a/net/sched/act_ife.c b/net/sched/act_ife.c index 9decbb74b3ac..244a8cf48183 100644 --- a/net/sched/act_ife.c +++ b/net/sched/act_ife.c @@ -265,11 +265,8 @@ static const char *ife_meta_id2name(u32 metaid) #endif /* called when adding new meta information - * under ife->tcf_lock for existing action */ -static int load_metaops_and_vet(struct tcf_ife_info *ife, u32 metaid, - void *val, int len, bool exists, - bool rtnl_held) +static int load_metaops_and_vet(u32 metaid, void *val, int len, bool rtnl_held) { struct tcf_meta_ops *ops = find_ife_oplist(metaid); int ret = 0; @@ -277,15 +274,11 @@ static int load_metaops_and_vet(struct tcf_ife_info *ife, u32 metaid, if (!ops) { ret = -ENOENT; #ifdef CONFIG_MODULES - if (exists) - spin_unlock_bh(&ife->tcf_lock); if (rtnl_held) rtnl_unlock(); request_module("ife-meta-%s", ife_meta_id2name(metaid)); if (rtnl_held) rtnl_lock(); - if (exists) - spin_lock_bh(&ife->tcf_lock); ops = find_ife_oplist(metaid); #endif } @@ -302,10 +295,9 @@ static int load_metaops_and_vet(struct tcf_ife_info *ife, u32 metaid, } /* called when adding new meta information - * under ife->tcf_lock for existing action */ static int add_metainfo(struct tcf_ife_info *ife, u32 metaid, void *metaval, - int len, bool atomic) + int len, bool atomic, bool exists) { struct tcf_meta_info *mi = NULL; struct tcf_meta_ops *ops = find_ife_oplist(metaid); @@ -332,12 +324,16 @@ static int add_metainfo(struct tcf_ife_info *ife, u32 metaid, void *metaval, } } + if (exists) + spin_lock_bh(&ife->tcf_lock); list_add_tail(&mi->metalist, &ife->metalist); + if (exists) + spin_unlock_bh(&ife->tcf_lock); return ret; } -static int use_all_metadata(struct tcf_ife_info *ife) +static int use_all_metadata(struct tcf_ife_info *ife, bool exists) { struct tcf_meta_ops *o; int rc = 0; @@ -345,7 +341,7 @@ static int use_all_metadata(struct tcf_ife_info *ife) read_lock(&ife_mod_lock); list_for_each_entry(o, &ifeoplist, list) { - rc = add_metainfo(ife, o->metaid, NULL, 0, true); + rc = add_metainfo(ife, o->metaid, NULL, 0, true, exists); if (rc == 0) installed += 1; } @@ -422,7 +418,6 @@ static void tcf_ife_cleanup(struct tc_action *a) kfree_rcu(p, rcu); } -/* under ife->tcf_lock for existing action */ static int populate_metalist(struct tcf_ife_info *ife, struct nlattr **tb, bool exists, bool rtnl_held) { @@ -436,12 +431,11 @@ static int populate_metalist(struct tcf_ife_info *ife, struct nlattr **tb, val = nla_data(tb[i]); len = nla_len(tb[i]); - rc = load_metaops_and_vet(ife, i, val, len, exists, - rtnl_held); + rc = load_metaops_and_vet(i, val, len, rtnl_held); if (rc != 0) return rc; - rc = add_metainfo(ife, i, val, len, exists); + rc = add_metainfo(ife, i, val, len, false, exists); if (rc) return rc; } @@ -540,8 +534,6 @@ static int tcf_ife_init(struct net *net, struct nlattr *nla, p->eth_type = ife_type; } - if (exists) - spin_lock_bh(&ife->tcf_lock); if (ret == ACT_P_CREATED) INIT_LIST_HEAD(&ife->metalist); @@ -551,10 +543,7 @@ static int tcf_ife_init(struct net *net, struct nlattr *nla, NULL, NULL); if (err) { metadata_parse_err: - if (exists) - spin_unlock_bh(&ife->tcf_lock); tcf_idr_release(*a, bind); - kfree(p); return err; } @@ -569,17 +558,16 @@ metadata_parse_err: * as we can. You better have at least one else we are * going to bail out */ - err = use_all_metadata(ife); + err = use_all_metadata(ife, exists); if (err) { - if (exists) - spin_unlock_bh(&ife->tcf_lock); tcf_idr_release(*a, bind); - kfree(p); return err; } } + if (exists) + spin_lock_bh(&ife->tcf_lock); ife->tcf_action = parm->action; /* protected by tcf_lock when modifying existing action */ rcu_swap_protected(ife->params, p, 1); From 5ffe57da29b3802baeddaa40909682bbb4cb4d48 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Sun, 19 Aug 2018 12:22:13 -0700 Subject: [PATCH 0045/1762] act_ife: fix a potential deadlock use_all_metadata() acquires read_lock(&ife_mod_lock), then calls add_metainfo() which calls find_ife_oplist() which acquires the same lock again. Deadlock! Introduce __add_metainfo() which accepts struct tcf_meta_ops *ops as an additional parameter and let its callers to decide how to find it. For use_all_metadata(), it already has ops, no need to find it again, just call __add_metainfo() directly. And, as ife_mod_lock is only needed for find_ife_oplist(), this means we can make non-atomic allocation for populate_metalist() now. Fixes: 817e9f2c5c26 ("act_ife: acquire ife_mod_lock before reading ifeoplist") Cc: Jamal Hadi Salim Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- net/sched/act_ife.c | 34 +++++++++++++++++++++------------- 1 file changed, 21 insertions(+), 13 deletions(-) diff --git a/net/sched/act_ife.c b/net/sched/act_ife.c index 244a8cf48183..196430aefe87 100644 --- a/net/sched/act_ife.c +++ b/net/sched/act_ife.c @@ -296,22 +296,16 @@ static int load_metaops_and_vet(u32 metaid, void *val, int len, bool rtnl_held) /* called when adding new meta information */ -static int add_metainfo(struct tcf_ife_info *ife, u32 metaid, void *metaval, - int len, bool atomic, bool exists) +static int __add_metainfo(const struct tcf_meta_ops *ops, + struct tcf_ife_info *ife, u32 metaid, void *metaval, + int len, bool atomic, bool exists) { struct tcf_meta_info *mi = NULL; - struct tcf_meta_ops *ops = find_ife_oplist(metaid); int ret = 0; - if (!ops) - return -ENOENT; - mi = kzalloc(sizeof(*mi), atomic ? GFP_ATOMIC : GFP_KERNEL); - if (!mi) { - /*put back what find_ife_oplist took */ - module_put(ops->owner); + if (!mi) return -ENOMEM; - } mi->metaid = metaid; mi->ops = ops; @@ -319,7 +313,6 @@ static int add_metainfo(struct tcf_ife_info *ife, u32 metaid, void *metaval, ret = ops->alloc(mi, metaval, atomic ? GFP_ATOMIC : GFP_KERNEL); if (ret != 0) { kfree(mi); - module_put(ops->owner); return ret; } } @@ -333,6 +326,21 @@ static int add_metainfo(struct tcf_ife_info *ife, u32 metaid, void *metaval, return ret; } +static int add_metainfo(struct tcf_ife_info *ife, u32 metaid, void *metaval, + int len, bool exists) +{ + const struct tcf_meta_ops *ops = find_ife_oplist(metaid); + int ret; + + if (!ops) + return -ENOENT; + ret = __add_metainfo(ops, ife, metaid, metaval, len, false, exists); + if (ret) + /*put back what find_ife_oplist took */ + module_put(ops->owner); + return ret; +} + static int use_all_metadata(struct tcf_ife_info *ife, bool exists) { struct tcf_meta_ops *o; @@ -341,7 +349,7 @@ static int use_all_metadata(struct tcf_ife_info *ife, bool exists) read_lock(&ife_mod_lock); list_for_each_entry(o, &ifeoplist, list) { - rc = add_metainfo(ife, o->metaid, NULL, 0, true, exists); + rc = __add_metainfo(o, ife, o->metaid, NULL, 0, true, exists); if (rc == 0) installed += 1; } @@ -435,7 +443,7 @@ static int populate_metalist(struct tcf_ife_info *ife, struct nlattr **tb, if (rc != 0) return rc; - rc = add_metainfo(ife, i, val, len, false, exists); + rc = add_metainfo(ife, i, val, len, exists); if (rc) return rc; } From 96c26e04581667e3cd17ed74c2fc3499afea49b8 Mon Sep 17 00:00:00 2001 From: Prashant Bhole Date: Mon, 20 Aug 2018 09:54:25 +0900 Subject: [PATCH 0046/1762] xsk: fix return value of xdp_umem_assign_dev() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit s/ENOTSUPP/EOPNOTSUPP/ in function umem_assign_dev(). This function's return value is directly returned by xsk_bind(). EOPNOTSUPP is bind()'s possible return value. Fixes: f734607e819b ("xsk: refactor xdp_umem_assign_dev()") Signed-off-by: Prashant Bhole Acked-by: Song Liu Acked-by: Björn Töpel Signed-off-by: Daniel Borkmann --- net/xdp/xdp_umem.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c index 911ca6d3cb5a..bfe2dbea480b 100644 --- a/net/xdp/xdp_umem.c +++ b/net/xdp/xdp_umem.c @@ -74,14 +74,14 @@ int xdp_umem_assign_dev(struct xdp_umem *umem, struct net_device *dev, return 0; if (!dev->netdev_ops->ndo_bpf || !dev->netdev_ops->ndo_xsk_async_xmit) - return force_zc ? -ENOTSUPP : 0; /* fail or fallback */ + return force_zc ? -EOPNOTSUPP : 0; /* fail or fallback */ bpf.command = XDP_QUERY_XSK_UMEM; rtnl_lock(); err = xdp_umem_query(dev, queue_id); if (err) { - err = err < 0 ? -ENOTSUPP : -EBUSY; + err = err < 0 ? -EOPNOTSUPP : -EBUSY; goto err_rtnl_unlock; } From 4f3530f4a41d49c41015020cd9a5ed5c95b5d2db Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 8 Aug 2018 01:07:06 -0700 Subject: [PATCH 0047/1762] bus: ti-sysc: Fix no_console_suspend handling If no_console_suspend is set, we should keep console enabled during suspend. Lets fix this by only producing a warning if we can't idle hardware during suspend. Fixes: ef55f8215a78 ("bus: ti-sysc: Improve suspend and resume handling") Signed-off-by: Tony Lindgren --- drivers/bus/ti-sysc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index b31bf03ea497..4576a1268e0e 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -1175,10 +1175,10 @@ static int sysc_child_suspend_noirq(struct device *dev) if (!pm_runtime_status_suspended(dev)) { error = pm_generic_runtime_suspend(dev); if (error) { - dev_err(dev, "%s error at %i: %i\n", - __func__, __LINE__, error); + dev_warn(dev, "%s busy at %i: %i\n", + __func__, __LINE__, error); - return error; + return 0; } error = sysc_runtime_suspend(ddata->dev); From f4efa74c09a7eddcc12cd13208f78743763f6e7a Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Wed, 1 Aug 2018 22:28:21 +0200 Subject: [PATCH 0048/1762] ARM: dts: omap4-droid4: fix vibrations on Droid 4 Vibration GPIOs don't have anything to do with wakeup. Move it to normal section; this fixes vibrations on Droid 4. Fixes: a5effd968301 ("ARM: dts: omap4-droid4: Add vibrator") Signed-off-by: Pavel Machek Reviewed-by: Sebastian Reichel Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/omap4-droid4-xt894.dts | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts index e7c3c563ff8f..edc97f89fae4 100644 --- a/arch/arm/boot/dts/omap4-droid4-xt894.dts +++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts @@ -618,15 +618,6 @@ OMAP4_IOPAD(0x10c, PIN_INPUT | MUX_MODE1) /* abe_mcbsp3_fsx */ >; }; -}; - -&omap4_pmx_wkup { - usb_gpio_mux_sel2: pinmux_usb_gpio_mux_sel2_pins { - /* gpio_wk0 */ - pinctrl-single,pins = < - OMAP4_IOPAD(0x040, PIN_OUTPUT_PULLDOWN | MUX_MODE3) - >; - }; vibrator_direction_pin: pinmux_vibrator_direction_pin { pinctrl-single,pins = < @@ -641,6 +632,15 @@ }; }; +&omap4_pmx_wkup { + usb_gpio_mux_sel2: pinmux_usb_gpio_mux_sel2_pins { + /* gpio_wk0 */ + pinctrl-single,pins = < + OMAP4_IOPAD(0x040, PIN_OUTPUT_PULLDOWN | MUX_MODE3) + >; + }; +}; + /* * As uart1 is wired to mdm6600 with rts and cts, we can use the cts pin for * uart1 wakeirq. From ce32d59ee2cd036f6e8a6ed17a06a0b0bec5c67c Mon Sep 17 00:00:00 2001 From: Keerthy Date: Wed, 25 Jul 2018 11:25:35 +0530 Subject: [PATCH 0049/1762] arm: dts: am4372: setup rtc as system-power-controller RTC alarm2 is connected to pmic_en line and hence can be used to control the pmic enabling/disabling. Hence add the system-power-controller for rtc node. Signed-off-by: Keerthy Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/am4372.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi index f0cbd86312dc..d4b7c59eec68 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -469,6 +469,7 @@ ti,hwmods = "rtc"; clocks = <&clk_32768_ck>; clock-names = "int-clk"; + system-power-controller; status = "disabled"; }; From 64d9d13828c6c8e188bba63794eee923df3d69a9 Mon Sep 17 00:00:00 2001 From: Jeremy Cline Date: Tue, 31 Jul 2018 01:37:30 +0000 Subject: [PATCH 0050/1762] fs/quota: Replace XQM_MAXQUOTAS usage with MAXQUOTAS XQM_MAXQUOTAS and MAXQUOTAS are, it appears, equivalent. Replace all usage of XQM_MAXQUOTAS and remove it along with the unused XQM_*QUOTA definitions. Signed-off-by: Jeremy Cline Signed-off-by: Jan Kara --- fs/quota/quota.c | 12 +++++------- include/linux/quota.h | 8 +------- 2 files changed, 6 insertions(+), 14 deletions(-) diff --git a/fs/quota/quota.c b/fs/quota/quota.c index 860bfbe7a07a..d403392d8a0f 100644 --- a/fs/quota/quota.c +++ b/fs/quota/quota.c @@ -120,8 +120,6 @@ static int quota_getinfo(struct super_block *sb, int type, void __user *addr) struct if_dqinfo uinfo; int ret; - /* This checks whether qc_state has enough entries... */ - BUILD_BUG_ON(MAXQUOTAS > XQM_MAXQUOTAS); if (!sb->s_qcop->get_state) return -ENOSYS; ret = sb->s_qcop->get_state(sb, &state); @@ -354,10 +352,10 @@ static int quota_getstate(struct super_block *sb, struct fs_quota_stat *fqs) * GETXSTATE quotactl has space for just one set of time limits so * report them for the first enabled quota type */ - for (type = 0; type < XQM_MAXQUOTAS; type++) + for (type = 0; type < MAXQUOTAS; type++) if (state.s_state[type].flags & QCI_ACCT_ENABLED) break; - BUG_ON(type == XQM_MAXQUOTAS); + BUG_ON(type == MAXQUOTAS); fqs->qs_btimelimit = state.s_state[type].spc_timelimit; fqs->qs_itimelimit = state.s_state[type].ino_timelimit; fqs->qs_rtbtimelimit = state.s_state[type].rt_spc_timelimit; @@ -427,10 +425,10 @@ static int quota_getstatev(struct super_block *sb, struct fs_quota_statv *fqs) * GETXSTATV quotactl has space for just one set of time limits so * report them for the first enabled quota type */ - for (type = 0; type < XQM_MAXQUOTAS; type++) + for (type = 0; type < MAXQUOTAS; type++) if (state.s_state[type].flags & QCI_ACCT_ENABLED) break; - BUG_ON(type == XQM_MAXQUOTAS); + BUG_ON(type == MAXQUOTAS); fqs->qs_btimelimit = state.s_state[type].spc_timelimit; fqs->qs_itimelimit = state.s_state[type].ino_timelimit; fqs->qs_rtbtimelimit = state.s_state[type].rt_spc_timelimit; @@ -701,7 +699,7 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, { int ret; - if (type >= (XQM_COMMAND(cmd) ? XQM_MAXQUOTAS : MAXQUOTAS)) + if (type >= MAXQUOTAS) return -EINVAL; /* * Quota not supported on this fs? Check this before s_quota_types diff --git a/include/linux/quota.h b/include/linux/quota.h index ca9772c8e48b..f32dd270b8e3 100644 --- a/include/linux/quota.h +++ b/include/linux/quota.h @@ -408,13 +408,7 @@ struct qc_type_state { struct qc_state { unsigned int s_incoredqs; /* Number of dquots in core */ - /* - * Per quota type information. The array should really have - * max(MAXQUOTAS, XQM_MAXQUOTAS) entries. BUILD_BUG_ON in - * quota_getinfo() makes sure XQM_MAXQUOTAS is large enough. Once VFS - * supports project quotas, this can be changed to MAXQUOTAS - */ - struct qc_type_state s_state[XQM_MAXQUOTAS]; + struct qc_type_state s_state[MAXQUOTAS]; /* Per quota type information */ }; /* Structure for communicating via ->set_info */ From 7b6924d94a60c6b8c1279ca003e8744e6cd9e8b1 Mon Sep 17 00:00:00 2001 From: Jeremy Cline Date: Tue, 31 Jul 2018 01:37:31 +0000 Subject: [PATCH 0051/1762] fs/quota: Fix spectre gadget in do_quotactl 'type' is user-controlled, so sanitize it after the bounds check to avoid using it in speculative execution. This covers the following potential gadgets detected with the help of smatch: * fs/ext4/super.c:5741 ext4_quota_read() warn: potential spectre issue 'sb_dqopt(sb)->files' [r] * fs/ext4/super.c:5778 ext4_quota_write() warn: potential spectre issue 'sb_dqopt(sb)->files' [r] * fs/f2fs/super.c:1552 f2fs_quota_read() warn: potential spectre issue 'sb_dqopt(sb)->files' [r] * fs/f2fs/super.c:1608 f2fs_quota_write() warn: potential spectre issue 'sb_dqopt(sb)->files' [r] * fs/quota/dquot.c:412 mark_info_dirty() warn: potential spectre issue 'sb_dqopt(sb)->info' [w] * fs/quota/dquot.c:933 dqinit_needed() warn: potential spectre issue 'dquots' [r] * fs/quota/dquot.c:2112 dquot_commit_info() warn: potential spectre issue 'dqopt->ops' [r] * fs/quota/dquot.c:2362 vfs_load_quota_inode() warn: potential spectre issue 'dqopt->files' [w] (local cap) * fs/quota/dquot.c:2369 vfs_load_quota_inode() warn: potential spectre issue 'dqopt->ops' [w] (local cap) * fs/quota/dquot.c:2370 vfs_load_quota_inode() warn: potential spectre issue 'dqopt->info' [w] (local cap) * fs/quota/quota.c:110 quota_getfmt() warn: potential spectre issue 'sb_dqopt(sb)->info' [r] * fs/quota/quota_v2.c:84 v2_check_quota_file() warn: potential spectre issue 'quota_magics' [w] * fs/quota/quota_v2.c:85 v2_check_quota_file() warn: potential spectre issue 'quota_versions' [w] * fs/quota/quota_v2.c:96 v2_read_file_info() warn: potential spectre issue 'dqopt->info' [r] * fs/quota/quota_v2.c:172 v2_write_file_info() warn: potential spectre issue 'dqopt->info' [r] Additionally, a quick inspection indicates there are array accesses with 'type' in quota_on() and quota_off() functions which are also addressed by this. Cc: Josh Poimboeuf Cc: stable@vger.kernel.org Signed-off-by: Jeremy Cline Signed-off-by: Jan Kara --- fs/quota/quota.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/quota/quota.c b/fs/quota/quota.c index d403392d8a0f..f0cbf58ad4da 100644 --- a/fs/quota/quota.c +++ b/fs/quota/quota.c @@ -18,6 +18,7 @@ #include #include #include +#include static int check_quotactl_permission(struct super_block *sb, int type, int cmd, qid_t id) @@ -701,6 +702,7 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, if (type >= MAXQUOTAS) return -EINVAL; + type = array_index_nospec(type, MAXQUOTAS); /* * Quota not supported on this fs? Check this before s_quota_types * since they needn't be set if quota is not supported at all. From b845c898b2f1ea458d5453f0fa1da6e2dfce3bb4 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Tue, 21 Aug 2018 15:55:00 +0200 Subject: [PATCH 0052/1762] bpf, sockmap: fix sock_hash_alloc and reject zero-sized keys Currently, it is possible to create a sock hash map with key size of 0 and have the kernel return a fd back to user space. This is invalid for hash maps (and kernel also hasn't been tested for zero key size support in general at this point). Thus, reject such configuration. Fixes: 81110384441a ("bpf: sockmap, add hash map support") Signed-off-by: Daniel Borkmann Acked-by: John Fastabend Acked-by: Song Liu --- kernel/bpf/sockmap.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c index 98e621a29e8e..60ceb0e1fa56 100644 --- a/kernel/bpf/sockmap.c +++ b/kernel/bpf/sockmap.c @@ -2140,7 +2140,9 @@ static struct bpf_map *sock_hash_alloc(union bpf_attr *attr) return ERR_PTR(-EPERM); /* check sanity of attributes */ - if (attr->max_entries == 0 || attr->value_size != 4 || + if (attr->max_entries == 0 || + attr->key_size == 0 || + attr->value_size != 4 || attr->map_flags & ~SOCK_CREATE_FLAG_MASK) return ERR_PTR(-EINVAL); From eb29429d81e31b191f3b2bd19cf820279cec6463 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Wed, 22 Aug 2018 18:09:17 +0200 Subject: [PATCH 0053/1762] bpf, sockmap: fix sock hash count in alloc_sock_hash_elem When we try to allocate a new sock hash entry and the allocation fails, then sock hash map fails to reduce the map element counter, meaning we keep accounting this element although it was never used. Fix it by dropping the element counter on error. Fixes: 81110384441a ("bpf: sockmap, add hash map support") Signed-off-by: Daniel Borkmann Acked-by: John Fastabend --- kernel/bpf/sockmap.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c index 60ceb0e1fa56..40c6ef9fc828 100644 --- a/kernel/bpf/sockmap.c +++ b/kernel/bpf/sockmap.c @@ -2269,8 +2269,10 @@ static struct htab_elem *alloc_sock_hash_elem(struct bpf_htab *htab, } l_new = kmalloc_node(htab->elem_size, GFP_ATOMIC | __GFP_NOWARN, htab->map.numa_node); - if (!l_new) + if (!l_new) { + atomic_dec(&htab->count); return ERR_PTR(-ENOMEM); + } memcpy(l_new->key, key, key_size); l_new->sk = sk; From 67db7cd249e71f64346f481b629724376d063e08 Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Wed, 22 Aug 2018 08:37:32 -0700 Subject: [PATCH 0054/1762] tls: possible hang when do_tcp_sendpages hits sndbuf is full case Currently, the lower protocols sk_write_space handler is not called if TLS is sending a scatterlist via tls_push_sg. However, normally tls_push_sg calls do_tcp_sendpage, which may be under memory pressure, that in turn may trigger a wait via sk_wait_event. Typically, this happens when the in-flight bytes exceed the sdnbuf size. In the normal case when enough ACKs are received sk_write_space() will be called and the sk_wait_event will be woken up allowing it to send more data and/or return to the user. But, in the TLS case because the sk_write_space() handler does not wake up the events the above send will wait until the sndtimeo is exceeded. By default this is MAX_SCHEDULE_TIMEOUT so it look like a hang to the user (especially this impatient user). To fix this pass the sk_write_space event to the lower layers sk_write_space event which in the TCP case will wake any pending events. I observed the above while integrating sockmap and ktls. It initially appeared as test_sockmap (modified to use ktls) occasionally hanging. To reliably reproduce this reduce the sndbuf size and stress the tls layer by sending many 1B sends. This results in every byte needing a header and each byte individually being sent to the crypto layer. Signed-off-by: John Fastabend Acked-by: Dave Watson Signed-off-by: Daniel Borkmann --- net/tls/tls_main.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index 93c0c225ab34..180b6640e531 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -213,9 +213,14 @@ static void tls_write_space(struct sock *sk) { struct tls_context *ctx = tls_get_ctx(sk); - /* We are already sending pages, ignore notification */ - if (ctx->in_tcp_sendpages) + /* If in_tcp_sendpages call lower protocol write space handler + * to ensure we wake up any waiting operations there. For example + * if do_tcp_sendpages where to call sk_wait_event. + */ + if (ctx->in_tcp_sendpages) { + ctx->sk_write_space(sk); return; + } if (!sk->sk_write_pending && tls_is_pending_closed_record(ctx)) { gfp_t sk_allocation = sk->sk_allocation; From 9b2e0388bec8ec5427403e23faff3b58dd1c3200 Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Wed, 22 Aug 2018 08:37:37 -0700 Subject: [PATCH 0055/1762] bpf: sockmap: write_space events need to be passed to TCP handler When sockmap code is using the stream parser it also handles the write space events in order to handle the case where (a) verdict redirects skb to another socket and (b) the sockmap then sends the skb but due to memory constraints (or other EAGAIN errors) needs to do a retry. But the initial code missed a third case where the skb_send_sock_locked() triggers an sk_wait_event(). A typically case would be when sndbuf size is exceeded. If this happens because we do not pass the write_space event to the lower layers we never wake up the event and it will wait for sndtimeo. Which as noted in ktls fix may be rather large and look like a hang to the user. To reproduce the best test is to reduce the sndbuf size and send 1B data chunks to stress the memory handling. To fix this pass the event from the upper layer to the lower layer. Signed-off-by: John Fastabend Signed-off-by: Daniel Borkmann --- kernel/bpf/sockmap.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c index 40c6ef9fc828..cf5195c7c331 100644 --- a/kernel/bpf/sockmap.c +++ b/kernel/bpf/sockmap.c @@ -1427,12 +1427,15 @@ out: static void smap_write_space(struct sock *sk) { struct smap_psock *psock; + void (*write_space)(struct sock *sk); rcu_read_lock(); psock = smap_psock_sk(sk); if (likely(psock && test_bit(SMAP_TX_RUNNING, &psock->state))) schedule_work(&psock->tx_work); + write_space = psock->save_write_space; rcu_read_unlock(); + write_space(sk); } static void smap_stop_sock(struct smap_psock *psock, struct sock *sk) From 8604ffcbf04f8f4f3f55a9e46e5ff948b2ed4290 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Thu, 16 Aug 2018 12:01:03 +0200 Subject: [PATCH 0056/1762] drm/amdgpu: fix VM clearing for the root PD MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We need to figure out the address after validating the BO, not before. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Reviewed-by: Junwei Zhang Reviewed-by: Huang Rui Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index ece0ac703e27..e40ca8676418 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -369,7 +369,6 @@ static int amdgpu_vm_clear_bo(struct amdgpu_device *adev, uint64_t addr; int r; - addr = amdgpu_bo_gpu_offset(bo); entries = amdgpu_bo_size(bo) / 8; if (pte_support_ats) { @@ -401,6 +400,7 @@ static int amdgpu_vm_clear_bo(struct amdgpu_device *adev, if (r) goto error; + addr = amdgpu_bo_gpu_offset(bo); if (ats_entries) { uint64_t ats_value; From d98ff24e8e9be3329eea7c84d5e244d0c1cd0ab3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Tue, 21 Aug 2018 15:09:39 +0200 Subject: [PATCH 0057/1762] drm/amdgpu: fix preamble handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit At this point the command submission can still be interrupted. Signed-off-by: Christian König Acked-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 502b94fb116a..09703c87d676 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -1012,13 +1012,9 @@ static int amdgpu_cs_ib_fill(struct amdgpu_device *adev, if (r) return r; - if (chunk_ib->flags & AMDGPU_IB_FLAG_PREAMBLE) { - parser->job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT; - if (!parser->ctx->preamble_presented) { - parser->job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT_FIRST; - parser->ctx->preamble_presented = true; - } - } + if (chunk_ib->flags & AMDGPU_IB_FLAG_PREAMBLE) + parser->job->preamble_status |= + AMDGPU_PREAMBLE_IB_PRESENT; if (parser->ring && parser->ring != ring) return -EINVAL; @@ -1241,6 +1237,12 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p, amdgpu_cs_post_dependencies(p); + if ((job->preamble_status & AMDGPU_PREAMBLE_IB_PRESENT) && + !p->ctx->preamble_presented) { + job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT_FIRST; + p->ctx->preamble_presented = true; + } + cs->out.handle = seq; job->uf_sequence = seq; From 2f40c6eac74a2a60921cdec9e9a8a57e88e31434 Mon Sep 17 00:00:00 2001 From: Emily Deng Date: Wed, 22 Aug 2018 20:18:25 +0800 Subject: [PATCH 0058/1762] amdgpu: fix multi-process hang issue MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit SWDEV-146499: hang during multi vulkan process testing cause: the second frame's PREAMBLE_IB have clear-state and LOAD actions, those actions ruin the pipeline that is still doing process in the previous frame's work-load IB. fix: need insert pipeline sync if have context switch for SRIOV (because only SRIOV will report PREEMPTION flag to UMD) Signed-off-by: Monk Liu Signed-off-by: Emily Deng Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c index 5518e623fed2..51b5e977ca88 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c @@ -164,8 +164,10 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs, return r; } + need_ctx_switch = ring->current_ctx != fence_ctx; if (ring->funcs->emit_pipeline_sync && job && ((tmp = amdgpu_sync_get_fence(&job->sched_sync, NULL)) || + (amdgpu_sriov_vf(adev) && need_ctx_switch) || amdgpu_vm_need_pipeline_sync(ring, job))) { need_pipe_sync = true; dma_fence_put(tmp); @@ -196,7 +198,6 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs, } skip_preamble = ring->current_ctx == fence_ctx; - need_ctx_switch = ring->current_ctx != fence_ctx; if (job && ring->funcs->emit_cntxcntl) { if (need_ctx_switch) status |= AMDGPU_HAVE_CTX_SWITCH; From eb7e5cfced102e61814f6f3e4cb4acb9f9315760 Mon Sep 17 00:00:00 2001 From: Andrey Grodzovsky Date: Wed, 22 Aug 2018 10:07:35 -0400 Subject: [PATCH 0059/1762] drm/amdgpu: Fix page fault and kasan warning on pci device remove. Problem: When executing echo 1 > /sys/class/drm/card0/device/remove kasan warning as bellow and page fault happen because adev->gart.pages already freed by the time amdgpu_gart_unbind is called. BUG: KASAN: user-memory-access in amdgpu_gart_unbind+0x98/0x180 [amdgpu] Write of size 8 at addr 0000000000003648 by task bash/1828 CPU: 2 PID: 1828 Comm: bash Tainted: G W O 4.18.0-rc1-dev+ #29 Hardware name: Gigabyte Technology Co., Ltd. AX370-Gaming/AX370-Gaming-CF, BIOS F3 06/19/2017 Call Trace: dump_stack+0x71/0xab kasan_report+0x109/0x390 amdgpu_gart_unbind+0x98/0x180 [amdgpu] ttm_tt_unbind+0x43/0x60 [ttm] ttm_bo_move_ttm+0x83/0x1c0 [ttm] ttm_bo_handle_move_mem+0xb97/0xd00 [ttm] ttm_bo_evict+0x273/0x530 [ttm] ttm_mem_evict_first+0x29c/0x360 [ttm] ttm_bo_force_list_clean+0xfc/0x210 [ttm] ttm_bo_clean_mm+0xe7/0x160 [ttm] amdgpu_ttm_fini+0xda/0x1d0 [amdgpu] amdgpu_bo_fini+0xf/0x60 [amdgpu] gmc_v8_0_sw_fini+0x36/0x70 [amdgpu] amdgpu_device_fini+0x2d0/0x7d0 [amdgpu] amdgpu_driver_unload_kms+0x6a/0xd0 [amdgpu] drm_dev_unregister+0x79/0x180 [drm] amdgpu_pci_remove+0x2a/0x60 [amdgpu] pci_device_remove+0x5b/0x100 device_release_driver_internal+0x236/0x360 pci_stop_bus_device+0xbf/0xf0 pci_stop_and_remove_bus_device_locked+0x16/0x30 remove_store+0xda/0xf0 kernfs_fop_write+0x186/0x220 __vfs_write+0xcc/0x330 vfs_write+0xe6/0x250 ksys_write+0xb1/0x140 do_syscall_64+0x77/0x1e0 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f66ebbb32c0 Fix: Split gmc_v{6,7,8,9}_0_gart_fini to postpone amdgpu_gart_fini to after memory managers are shut down since gart unbind happens as part of this procedure Signed-off-by: Andrey Grodzovsky Reviewed-by: Junwei Zhang Acked-by: Huang Rui Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 9 ++------- drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | 16 ++-------------- drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 16 ++-------------- drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 16 ++-------------- 4 files changed, 8 insertions(+), 49 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c index 75317f283c69..ad151fefa41f 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c @@ -632,12 +632,6 @@ static void gmc_v6_0_gart_disable(struct amdgpu_device *adev) amdgpu_gart_table_vram_unpin(adev); } -static void gmc_v6_0_gart_fini(struct amdgpu_device *adev) -{ - amdgpu_gart_table_vram_free(adev); - amdgpu_gart_fini(adev); -} - static void gmc_v6_0_vm_decode_fault(struct amdgpu_device *adev, u32 status, u32 addr, u32 mc_client) { @@ -935,8 +929,9 @@ static int gmc_v6_0_sw_fini(void *handle) amdgpu_gem_force_release(adev); amdgpu_vm_manager_fini(adev); - gmc_v6_0_gart_fini(adev); + amdgpu_gart_table_vram_free(adev); amdgpu_bo_fini(adev); + amdgpu_gart_fini(adev); release_firmware(adev->gmc.fw); adev->gmc.fw = NULL; diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c index 36dc367c4b45..f8d8a3a73e42 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c @@ -746,19 +746,6 @@ static void gmc_v7_0_gart_disable(struct amdgpu_device *adev) amdgpu_gart_table_vram_unpin(adev); } -/** - * gmc_v7_0_gart_fini - vm fini callback - * - * @adev: amdgpu_device pointer - * - * Tears down the driver GART/VM setup (CIK). - */ -static void gmc_v7_0_gart_fini(struct amdgpu_device *adev) -{ - amdgpu_gart_table_vram_free(adev); - amdgpu_gart_fini(adev); -} - /** * gmc_v7_0_vm_decode_fault - print human readable fault info * @@ -1095,8 +1082,9 @@ static int gmc_v7_0_sw_fini(void *handle) amdgpu_gem_force_release(adev); amdgpu_vm_manager_fini(adev); kfree(adev->gmc.vm_fault_info); - gmc_v7_0_gart_fini(adev); + amdgpu_gart_table_vram_free(adev); amdgpu_bo_fini(adev); + amdgpu_gart_fini(adev); release_firmware(adev->gmc.fw); adev->gmc.fw = NULL; diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c index 70fc97b59b4f..9333109b210d 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c @@ -968,19 +968,6 @@ static void gmc_v8_0_gart_disable(struct amdgpu_device *adev) amdgpu_gart_table_vram_unpin(adev); } -/** - * gmc_v8_0_gart_fini - vm fini callback - * - * @adev: amdgpu_device pointer - * - * Tears down the driver GART/VM setup (CIK). - */ -static void gmc_v8_0_gart_fini(struct amdgpu_device *adev) -{ - amdgpu_gart_table_vram_free(adev); - amdgpu_gart_fini(adev); -} - /** * gmc_v8_0_vm_decode_fault - print human readable fault info * @@ -1199,8 +1186,9 @@ static int gmc_v8_0_sw_fini(void *handle) amdgpu_gem_force_release(adev); amdgpu_vm_manager_fini(adev); kfree(adev->gmc.vm_fault_info); - gmc_v8_0_gart_fini(adev); + amdgpu_gart_table_vram_free(adev); amdgpu_bo_fini(adev); + amdgpu_gart_fini(adev); release_firmware(adev->gmc.fw); adev->gmc.fw = NULL; diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 399a5db27649..72f8018fa2a8 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -942,26 +942,12 @@ static int gmc_v9_0_sw_init(void *handle) return 0; } -/** - * gmc_v9_0_gart_fini - vm fini callback - * - * @adev: amdgpu_device pointer - * - * Tears down the driver GART/VM setup (CIK). - */ -static void gmc_v9_0_gart_fini(struct amdgpu_device *adev) -{ - amdgpu_gart_table_vram_free(adev); - amdgpu_gart_fini(adev); -} - static int gmc_v9_0_sw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; amdgpu_gem_force_release(adev); amdgpu_vm_manager_fini(adev); - gmc_v9_0_gart_fini(adev); /* * TODO: @@ -974,7 +960,9 @@ static int gmc_v9_0_sw_fini(void *handle) */ amdgpu_bo_free_kernel(&adev->stolen_vga_memory, NULL, NULL); + amdgpu_gart_table_vram_free(adev); amdgpu_bo_fini(adev); + amdgpu_gart_fini(adev); return 0; } From 00e1cae78120ee19462e7f96135cd1cc59a086e7 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Wed, 22 Aug 2018 00:02:19 +0200 Subject: [PATCH 0060/1762] net: ethernet: renesas: use SPDX identifier for Renesas drivers Signed-off-by: Wolfram Sang Acked-by: Sergei Shtylyov Reviewed-by: Simon Horman Signed-off-by: David S. Miller --- drivers/net/ethernet/renesas/ravb.h | 5 +---- drivers/net/ethernet/renesas/ravb_main.c | 5 +---- drivers/net/ethernet/renesas/sh_eth.c | 13 +------------ drivers/net/ethernet/renesas/sh_eth.h | 13 +------------ 4 files changed, 4 insertions(+), 32 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index b81f4faf7b10..1470fc12282b 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* Renesas Ethernet AVB device driver * * Copyright (C) 2014-2015 Renesas Electronics Corporation @@ -5,10 +6,6 @@ * Copyright (C) 2015-2016 Cogent Embedded, Inc. * * Based on the SuperH Ethernet driver - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License version 2, - * as published by the Free Software Foundation. */ #ifndef __RAVB_H__ diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index c06f2df895c2..aff5516b781e 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* Renesas Ethernet AVB device driver * * Copyright (C) 2014-2015 Renesas Electronics Corporation @@ -5,10 +6,6 @@ * Copyright (C) 2015-2016 Cogent Embedded, Inc. * * Based on the SuperH Ethernet driver - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License version 2, - * as published by the Free Software Foundation. */ #include diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 5573199c4536..ad4433d59237 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* SuperH Ethernet device driver * * Copyright (C) 2014 Renesas Electronics Corporation @@ -5,18 +6,6 @@ * Copyright (C) 2008-2014 Renesas Solutions Corp. * Copyright (C) 2013-2017 Cogent Embedded, Inc. * Copyright (C) 2014 Codethink Limited - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * The full GNU General Public License is included in this distribution in - * the file called "COPYING". */ #include diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h index f94be99cf400..0c18650bbfe6 100644 --- a/drivers/net/ethernet/renesas/sh_eth.h +++ b/drivers/net/ethernet/renesas/sh_eth.h @@ -1,19 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* SuperH Ethernet device driver * * Copyright (C) 2006-2012 Nobuhiro Iwamatsu * Copyright (C) 2008-2012 Renesas Solutions Corp. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * The full GNU General Public License is included in this distribution in - * the file called "COPYING". */ #ifndef __SH_ETH_H__ From 3d0371b313b84ba7c16ebf2526a7a34f1c57b19e Mon Sep 17 00:00:00 2001 From: Samuel Mendoza-Jonas Date: Wed, 22 Aug 2018 14:57:44 +1000 Subject: [PATCH 0061/1762] net/ncsi: Fixup .dumpit message flags and ID check in Netlink handler The ncsi_pkg_info_all_nl() .dumpit handler is missing the NLM_F_MULTI flag, causing additional package information after the first to be lost. Also fixup a sanity check in ncsi_write_package_info() to reject out of range package IDs. Signed-off-by: Samuel Mendoza-Jonas Signed-off-by: David S. Miller --- net/ncsi/ncsi-netlink.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ncsi/ncsi-netlink.c b/net/ncsi/ncsi-netlink.c index 82e6edf9c5d9..45f33d6dedf7 100644 --- a/net/ncsi/ncsi-netlink.c +++ b/net/ncsi/ncsi-netlink.c @@ -100,7 +100,7 @@ static int ncsi_write_package_info(struct sk_buff *skb, bool found; int rc; - if (id > ndp->package_num) { + if (id > ndp->package_num - 1) { netdev_info(ndp->ndev.dev, "NCSI: No package with id %u\n", id); return -ENODEV; } @@ -240,7 +240,7 @@ static int ncsi_pkg_info_all_nl(struct sk_buff *skb, return 0; /* done */ hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, - &ncsi_genl_family, 0, NCSI_CMD_PKG_INFO); + &ncsi_genl_family, NLM_F_MULTI, NCSI_CMD_PKG_INFO); if (!hdr) { rc = -EMSGSIZE; goto err; From 93cfb6c17690c465509967aeb237717d10513a88 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= Date: Wed, 22 Aug 2018 12:29:43 +0200 Subject: [PATCH 0062/1762] sch_cake: Fix TC filter flow override and expand it to hosts as well MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The TC filter flow mapping override completely skipped the call to cake_hash(); however that meant that the internal state was not being updated, which ultimately leads to deadlocks in some configurations. Fix that by passing the overridden flow ID into cake_hash() instead so it can react appropriately. In addition, the major number of the class ID can now be set to override the host mapping in host isolation mode. If both host and flow are overridden (or if the respective modes are disabled), flow dissection and hashing will be skipped entirely; otherwise, the hashing will be kept for the portions that are not set by the filter. Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: David S. Miller --- net/sched/sch_cake.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c index 4d26b0823cdf..c07c30b916d5 100644 --- a/net/sched/sch_cake.c +++ b/net/sched/sch_cake.c @@ -620,15 +620,20 @@ static bool cake_ddst(int flow_mode) } static u32 cake_hash(struct cake_tin_data *q, const struct sk_buff *skb, - int flow_mode) + int flow_mode, u16 flow_override, u16 host_override) { - u32 flow_hash = 0, srchost_hash, dsthost_hash; + u32 flow_hash = 0, srchost_hash = 0, dsthost_hash = 0; u16 reduced_hash, srchost_idx, dsthost_idx; struct flow_keys keys, host_keys; if (unlikely(flow_mode == CAKE_FLOW_NONE)) return 0; + /* If both overrides are set we can skip packet dissection entirely */ + if ((flow_override || !(flow_mode & CAKE_FLOW_FLOWS)) && + (host_override || !(flow_mode & CAKE_FLOW_HOSTS))) + goto skip_hash; + skb_flow_dissect_flow_keys(skb, &keys, FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL); @@ -675,6 +680,14 @@ static u32 cake_hash(struct cake_tin_data *q, const struct sk_buff *skb, if (flow_mode & CAKE_FLOW_FLOWS) flow_hash = flow_hash_from_keys(&keys); +skip_hash: + if (flow_override) + flow_hash = flow_override - 1; + if (host_override) { + dsthost_hash = host_override - 1; + srchost_hash = host_override - 1; + } + if (!(flow_mode & CAKE_FLOW_FLOWS)) { if (flow_mode & CAKE_FLOW_SRC_IP) flow_hash ^= srchost_hash; @@ -1570,7 +1583,7 @@ static u32 cake_classify(struct Qdisc *sch, struct cake_tin_data **t, struct cake_sched_data *q = qdisc_priv(sch); struct tcf_proto *filter; struct tcf_result res; - u32 flow = 0; + u16 flow = 0, host = 0; int result; filter = rcu_dereference_bh(q->filter_list); @@ -1594,10 +1607,12 @@ static u32 cake_classify(struct Qdisc *sch, struct cake_tin_data **t, #endif if (TC_H_MIN(res.classid) <= CAKE_QUEUES) flow = TC_H_MIN(res.classid); + if (TC_H_MAJ(res.classid) <= (CAKE_QUEUES << 16)) + host = TC_H_MAJ(res.classid) >> 16; } hash: *t = cake_select_tin(sch, skb); - return flow ?: cake_hash(*t, skb, flow_mode) + 1; + return cake_hash(*t, skb, flow_mode, flow, host) + 1; } static void cake_reconfigure(struct Qdisc *sch); From 191672ca07a7c10c3b84d01019a33d59b4317997 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 22 Aug 2018 17:25:44 +0200 Subject: [PATCH 0063/1762] net_sched: fix unused variable warning in stmmac The new tcf_exts_for_each_action() macro doesn't reference its arguments when CONFIG_NET_CLS_ACT is disabled, which leads to a harmless warning in at least one driver: drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c: In function 'tc_fill_actions': drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c:64:6: error: unused variable 'i' [-Werror=unused-variable] Adding a cast to void lets us avoid this kind of warning. To be on the safe side, do it for all three arguments, not just the one that caused the warning. Fixes: 244cd96adb5f ("net_sched: remove list_head from tc_action") Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller --- include/net/pkt_cls.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h index c17d51865469..75a3f3fdb359 100644 --- a/include/net/pkt_cls.h +++ b/include/net/pkt_cls.h @@ -303,7 +303,7 @@ static inline void tcf_exts_put_net(struct tcf_exts *exts) for (i = 0; i < TCA_ACT_MAX_PRIO && ((a) = (exts)->actions[i]); i++) #else #define tcf_exts_for_each_action(i, a, exts) \ - for (; 0; ) + for (; 0; (void)(i), (void)(a), (void)(exts)) #endif static inline void From e500c6d349f7f36120886841c6f057ce248b48b2 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Wed, 22 Aug 2018 12:58:34 -0700 Subject: [PATCH 0064/1762] addrconf: reduce unnecessary atomic allocations All the 3 callers of addrconf_add_mroute() assert RTNL lock, they don't take any additional lock either, so it is safe to convert it to GFP_KERNEL. Same for sit_add_v4_addrs(). Cc: David Ahern Signed-off-by: Cong Wang Reviewed-by: David Ahern Signed-off-by: David S. Miller --- net/ipv6/addrconf.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 2fac4ad74867..d51a8c0b3372 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -2398,7 +2398,7 @@ static void addrconf_add_mroute(struct net_device *dev) ipv6_addr_set(&cfg.fc_dst, htonl(0xFF000000), 0, 0, 0); - ip6_route_add(&cfg, GFP_ATOMIC, NULL); + ip6_route_add(&cfg, GFP_KERNEL, NULL); } static struct inet6_dev *addrconf_add_dev(struct net_device *dev) @@ -3062,7 +3062,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev) if (addr.s6_addr32[3]) { add_addr(idev, &addr, plen, scope); addrconf_prefix_route(&addr, plen, 0, idev->dev, 0, pflags, - GFP_ATOMIC); + GFP_KERNEL); return; } @@ -3087,7 +3087,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev) add_addr(idev, &addr, plen, flag); addrconf_prefix_route(&addr, plen, 0, idev->dev, - 0, pflags, GFP_ATOMIC); + 0, pflags, GFP_KERNEL); } } } From 431280eebed9f5079553daf003011097763e71fd Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 22 Aug 2018 13:30:45 -0700 Subject: [PATCH 0065/1762] ipv4: tcp: send zero IPID for RST and ACK sent in SYN-RECV and TIME-WAIT state tcp uses per-cpu (and per namespace) sockets (net->ipv4.tcp_sk) internally to send some control packets. 1) RST packets, through tcp_v4_send_reset() 2) ACK packets in SYN-RECV and TIME-WAIT state, through tcp_v4_send_ack() These packets assert IP_DF, and also use the hashed IP ident generator to provide an IPv4 ID number. Geoff Alexander reported this could be used to build off-path attacks. These packets should not be fragmented, since their size is smaller than IPV4_MIN_MTU. Only some tunneled paths could eventually have to fragment, regardless of inner IPID. We really can use zero IPID, to address the flaw, and as a bonus, avoid a couple of atomic operations in ip_idents_reserve() Signed-off-by: Eric Dumazet Reported-by: Geoff Alexander Tested-by: Geoff Alexander Signed-off-by: David S. Miller --- net/ipv4/tcp_ipv4.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 9e041fa5c545..44c09eddbb78 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -2517,6 +2517,12 @@ static int __net_init tcp_sk_init(struct net *net) if (res) goto fail; sock_set_flag(sk, SOCK_USE_WRITE_QUEUE); + + /* Please enforce IP_DF and IPID==0 for RST and + * ACK sent in SYN-RECV and TIME-WAIT state. + */ + inet_sk(sk)->pmtudisc = IP_PMTUDISC_DO; + *per_cpu_ptr(net->ipv4.tcp_sk, cpu) = sk; } From fb99886224294b2291d267da41395022fa4200e2 Mon Sep 17 00:00:00 2001 From: Kevin Yang Date: Wed, 22 Aug 2018 17:43:14 -0400 Subject: [PATCH 0066/1762] tcp_bbr: add bbr_check_probe_rtt_done() helper This patch add a helper function bbr_check_probe_rtt_done() to 1. check the condition to see if bbr should exit probe_rtt mode; 2. process the logic of exiting probe_rtt mode. Fixes: 0f8782ea1497 ("tcp_bbr: add BBR congestion control") Signed-off-by: Kevin Yang Signed-off-by: Neal Cardwell Signed-off-by: Yuchung Cheng Reviewed-by: Soheil Hassas Yeganeh Signed-off-by: David S. Miller --- net/ipv4/tcp_bbr.c | 34 ++++++++++++++++++---------------- 1 file changed, 18 insertions(+), 16 deletions(-) diff --git a/net/ipv4/tcp_bbr.c b/net/ipv4/tcp_bbr.c index 13d34427ca3d..fd7bccf36a26 100644 --- a/net/ipv4/tcp_bbr.c +++ b/net/ipv4/tcp_bbr.c @@ -95,11 +95,10 @@ struct bbr { u32 mode:3, /* current bbr_mode in state machine */ prev_ca_state:3, /* CA state on previous ACK */ packet_conservation:1, /* use packet conservation? */ - restore_cwnd:1, /* decided to revert cwnd to old value */ round_start:1, /* start of packet-timed tx->ack round? */ idle_restart:1, /* restarting after idle? */ probe_rtt_round_done:1, /* a BBR_PROBE_RTT round at 4 pkts? */ - unused:12, + unused:13, lt_is_sampling:1, /* taking long-term ("LT") samples now? */ lt_rtt_cnt:7, /* round trips in long-term interval */ lt_use_bw:1; /* use lt_bw as our bw estimate? */ @@ -396,17 +395,11 @@ static bool bbr_set_cwnd_to_recover_or_restore( cwnd = tcp_packets_in_flight(tp) + acked; } else if (prev_state >= TCP_CA_Recovery && state < TCP_CA_Recovery) { /* Exiting loss recovery; restore cwnd saved before recovery. */ - bbr->restore_cwnd = 1; + cwnd = max(cwnd, bbr->prior_cwnd); bbr->packet_conservation = 0; } bbr->prev_ca_state = state; - if (bbr->restore_cwnd) { - /* Restore cwnd after exiting loss recovery or PROBE_RTT. */ - cwnd = max(cwnd, bbr->prior_cwnd); - bbr->restore_cwnd = 0; - } - if (bbr->packet_conservation) { *new_cwnd = max(cwnd, tcp_packets_in_flight(tp) + acked); return true; /* yes, using packet conservation */ @@ -748,6 +741,20 @@ static void bbr_check_drain(struct sock *sk, const struct rate_sample *rs) bbr_reset_probe_bw_mode(sk); /* we estimate queue is drained */ } +static void bbr_check_probe_rtt_done(struct sock *sk) +{ + struct tcp_sock *tp = tcp_sk(sk); + struct bbr *bbr = inet_csk_ca(sk); + + if (!(bbr->probe_rtt_done_stamp && + after(tcp_jiffies32, bbr->probe_rtt_done_stamp))) + return; + + bbr->min_rtt_stamp = tcp_jiffies32; /* wait a while until PROBE_RTT */ + tp->snd_cwnd = max(tp->snd_cwnd, bbr->prior_cwnd); + bbr_reset_mode(sk); +} + /* The goal of PROBE_RTT mode is to have BBR flows cooperatively and * periodically drain the bottleneck queue, to converge to measure the true * min_rtt (unloaded propagation delay). This allows the flows to keep queues @@ -806,12 +813,8 @@ static void bbr_update_min_rtt(struct sock *sk, const struct rate_sample *rs) } else if (bbr->probe_rtt_done_stamp) { if (bbr->round_start) bbr->probe_rtt_round_done = 1; - if (bbr->probe_rtt_round_done && - after(tcp_jiffies32, bbr->probe_rtt_done_stamp)) { - bbr->min_rtt_stamp = tcp_jiffies32; - bbr->restore_cwnd = 1; /* snap to prior_cwnd */ - bbr_reset_mode(sk); - } + if (bbr->probe_rtt_round_done) + bbr_check_probe_rtt_done(sk); } } /* Restart after idle ends only once we process a new S/ACK for data */ @@ -862,7 +865,6 @@ static void bbr_init(struct sock *sk) bbr->has_seen_rtt = 0; bbr_init_pacing_rate_from_rtt(sk); - bbr->restore_cwnd = 0; bbr->round_start = 0; bbr->idle_restart = 0; bbr->full_bw_reached = 0; From 5490b32dce6932ea7ee8e3b2f76db2957c92af6e Mon Sep 17 00:00:00 2001 From: Kevin Yang Date: Wed, 22 Aug 2018 17:43:15 -0400 Subject: [PATCH 0067/1762] tcp_bbr: in restart from idle, see if we should exit PROBE_RTT This patch fix the case where BBR does not exit PROBE_RTT mode when it restarts from idle. When BBR restarts from idle and if BBR is in PROBE_RTT mode, BBR should check if it's time to exit PROBE_RTT. If yes, then BBR should exit PROBE_RTT mode and restore the cwnd to its full value. Fixes: 0f8782ea1497 ("tcp_bbr: add BBR congestion control") Signed-off-by: Kevin Yang Signed-off-by: Neal Cardwell Reviewed-by: Yuchung Cheng Reviewed-by: Soheil Hassas Yeganeh Signed-off-by: David S. Miller --- net/ipv4/tcp_bbr.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/ipv4/tcp_bbr.c b/net/ipv4/tcp_bbr.c index fd7bccf36a26..1d4bdd3b5e4d 100644 --- a/net/ipv4/tcp_bbr.c +++ b/net/ipv4/tcp_bbr.c @@ -174,6 +174,8 @@ static const u32 bbr_lt_bw_diff = 4000 / 8; /* If we estimate we're policed, use lt_bw for this many round trips: */ static const u32 bbr_lt_bw_max_rtts = 48; +static void bbr_check_probe_rtt_done(struct sock *sk); + /* Do we estimate that STARTUP filled the pipe? */ static bool bbr_full_bw_reached(const struct sock *sk) { @@ -308,6 +310,8 @@ static void bbr_cwnd_event(struct sock *sk, enum tcp_ca_event event) */ if (bbr->mode == BBR_PROBE_BW) bbr_set_pacing_rate(sk, bbr_bw(sk), BBR_UNIT); + else if (bbr->mode == BBR_PROBE_RTT) + bbr_check_probe_rtt_done(sk); } } From 8e995bf14fdb7e33681d5c3312b602fa342b878a Mon Sep 17 00:00:00 2001 From: Kevin Yang Date: Wed, 22 Aug 2018 17:43:16 -0400 Subject: [PATCH 0068/1762] tcp_bbr: apply PROBE_RTT cwnd cap even if acked==0 This commit fixes a corner case where TCP BBR would enter PROBE_RTT mode but not reduce its cwnd. If a TCP receiver ACKed less than one full segment, the number of delivered/acked packets was 0, so that bbr_set_cwnd() would short-circuit and exit early, without cutting cwnd to the value we want for PROBE_RTT. The fix is to instead make sure that even when 0 full packets are ACKed, we do apply all the appropriate caps, including the cap that applies in PROBE_RTT mode. Fixes: 0f8782ea1497 ("tcp_bbr: add BBR congestion control") Signed-off-by: Kevin Yang Signed-off-by: Neal Cardwell Reviewed-by: Yuchung Cheng Reviewed-by: Soheil Hassas Yeganeh Signed-off-by: David S. Miller --- net/ipv4/tcp_bbr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv4/tcp_bbr.c b/net/ipv4/tcp_bbr.c index 1d4bdd3b5e4d..02ff2dde9609 100644 --- a/net/ipv4/tcp_bbr.c +++ b/net/ipv4/tcp_bbr.c @@ -420,10 +420,10 @@ static void bbr_set_cwnd(struct sock *sk, const struct rate_sample *rs, { struct tcp_sock *tp = tcp_sk(sk); struct bbr *bbr = inet_csk_ca(sk); - u32 cwnd = 0, target_cwnd = 0; + u32 cwnd = tp->snd_cwnd, target_cwnd = 0; if (!acked) - return; + goto done; /* no packet fully ACKed; just apply caps */ if (bbr_set_cwnd_to_recover_or_restore(sk, rs, acked, &cwnd)) goto done; From 3ed614dce3ca9912d22be215ff0f11104b69fe62 Mon Sep 17 00:00:00 2001 From: Huazhong Tan Date: Thu, 23 Aug 2018 11:10:10 +0800 Subject: [PATCH 0069/1762] net: hns: fix length and page_offset overflow when CONFIG_ARM64_64K_PAGES When enable the config item "CONFIG_ARM64_64K_PAGES", the size of PAGE_SIZE is 65536(64K). But the type of length and page_offset are u16, they will overflow. So change them to u32. Fixes: 6fe6611ff275 ("net: add Hisilicon Network Subsystem hnae framework support") Signed-off-by: Huazhong Tan Signed-off-by: Salil Mehta Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns/hnae.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns/hnae.h b/drivers/net/ethernet/hisilicon/hns/hnae.h index fa5b30f547f6..cad52bd331f7 100644 --- a/drivers/net/ethernet/hisilicon/hns/hnae.h +++ b/drivers/net/ethernet/hisilicon/hns/hnae.h @@ -220,10 +220,10 @@ struct hnae_desc_cb { /* priv data for the desc, e.g. skb when use with ip stack*/ void *priv; - u16 page_offset; - u16 reuse_flag; + u32 page_offset; + u32 length; /* length of the buffer */ - u16 length; /* length of the buffer */ + u16 reuse_flag; /* desc type, used by the ring user to mark the type of the priv data */ u16 type; From ac4a5b52f5970479f4b2d94a7f98dbf9eaf675ab Mon Sep 17 00:00:00 2001 From: Huazhong Tan Date: Thu, 23 Aug 2018 11:10:11 +0800 Subject: [PATCH 0070/1762] net: hns: modify variable type in hns_nic_reuse_page 'truesize' is supposed to be u32, not int, so fix it. Signed-off-by: Huazhong tan Signed-off-by: Salil Mehta Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns/hns_enet.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index 9f2b552aee33..c8c0b0309c27 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -512,7 +512,8 @@ static void hns_nic_reuse_page(struct sk_buff *skb, int i, struct hnae_desc_cb *desc_cb) { struct hnae_desc *desc; - int truesize, size; + u32 truesize; + int size; int last_offset; bool twobufs; From b1ccd4c0ab6ef499f47dd84ed4920502a7147bba Mon Sep 17 00:00:00 2001 From: Huazhong Tan Date: Thu, 23 Aug 2018 11:10:12 +0800 Subject: [PATCH 0071/1762] net: hns: fix skb->truesize underestimation skb->truesize is not meant to be tracking amount of used bytes in a skb, but amount of reserved/consumed bytes in memory. For instance, if we use a single byte in last page fragment, we have to account the full size of the fragment. So skb_add_rx_frag needs to calculate the length of the entire buffer into turesize. Fixes: 9cbe9fd5214e ("net: hns: optimize XGE capability by reducing cpu usage") Signed-off-by: Huazhong tan Signed-off-by: Salil Mehta Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns/hns_enet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index c8c0b0309c27..71bd3bff6c67 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -531,7 +531,7 @@ static void hns_nic_reuse_page(struct sk_buff *skb, int i, } skb_add_rx_frag(skb, i, desc_cb->priv, desc_cb->page_offset + pull_len, - size - pull_len, truesize - pull_len); + size - pull_len, truesize); /* avoid re-using remote pages,flag default unreuse */ if (unlikely(page_to_nid(desc_cb->priv) != numa_node_id())) From 339379a2fb13decd1802b403370cc3cdf21d819f Mon Sep 17 00:00:00 2001 From: Huazhong Tan Date: Thu, 23 Aug 2018 11:10:13 +0800 Subject: [PATCH 0072/1762] net: hns: use eth_get_headlen interface instead of hns_nic_get_headlen Update hns to drop the hns_nic_get_headlen function in favour of eth_get_headlen, and hence also removes now redundant hns_nic_get_headlen. Signed-off-by: Huazhong Tan Signed-off-by: Salil Mehta Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns/hns_enet.c | 103 +----------------- 1 file changed, 1 insertion(+), 102 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index 71bd3bff6c67..02a0ba20fad5 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -406,107 +406,6 @@ out_net_tx_busy: return NETDEV_TX_BUSY; } -/** - * hns_nic_get_headlen - determine size of header for RSC/LRO/GRO/FCOE - * @data: pointer to the start of the headers - * @max: total length of section to find headers in - * - * This function is meant to determine the length of headers that will - * be recognized by hardware for LRO, GRO, and RSC offloads. The main - * motivation of doing this is to only perform one pull for IPv4 TCP - * packets so that we can do basic things like calculating the gso_size - * based on the average data per packet. - **/ -static unsigned int hns_nic_get_headlen(unsigned char *data, u32 flag, - unsigned int max_size) -{ - unsigned char *network; - u8 hlen; - - /* this should never happen, but better safe than sorry */ - if (max_size < ETH_HLEN) - return max_size; - - /* initialize network frame pointer */ - network = data; - - /* set first protocol and move network header forward */ - network += ETH_HLEN; - - /* handle any vlan tag if present */ - if (hnae_get_field(flag, HNS_RXD_VLAN_M, HNS_RXD_VLAN_S) - == HNS_RX_FLAG_VLAN_PRESENT) { - if ((typeof(max_size))(network - data) > (max_size - VLAN_HLEN)) - return max_size; - - network += VLAN_HLEN; - } - - /* handle L3 protocols */ - if (hnae_get_field(flag, HNS_RXD_L3ID_M, HNS_RXD_L3ID_S) - == HNS_RX_FLAG_L3ID_IPV4) { - if ((typeof(max_size))(network - data) > - (max_size - sizeof(struct iphdr))) - return max_size; - - /* access ihl as a u8 to avoid unaligned access on ia64 */ - hlen = (network[0] & 0x0F) << 2; - - /* verify hlen meets minimum size requirements */ - if (hlen < sizeof(struct iphdr)) - return network - data; - - /* record next protocol if header is present */ - } else if (hnae_get_field(flag, HNS_RXD_L3ID_M, HNS_RXD_L3ID_S) - == HNS_RX_FLAG_L3ID_IPV6) { - if ((typeof(max_size))(network - data) > - (max_size - sizeof(struct ipv6hdr))) - return max_size; - - /* record next protocol */ - hlen = sizeof(struct ipv6hdr); - } else { - return network - data; - } - - /* relocate pointer to start of L4 header */ - network += hlen; - - /* finally sort out TCP/UDP */ - if (hnae_get_field(flag, HNS_RXD_L4ID_M, HNS_RXD_L4ID_S) - == HNS_RX_FLAG_L4ID_TCP) { - if ((typeof(max_size))(network - data) > - (max_size - sizeof(struct tcphdr))) - return max_size; - - /* access doff as a u8 to avoid unaligned access on ia64 */ - hlen = (network[12] & 0xF0) >> 2; - - /* verify hlen meets minimum size requirements */ - if (hlen < sizeof(struct tcphdr)) - return network - data; - - network += hlen; - } else if (hnae_get_field(flag, HNS_RXD_L4ID_M, HNS_RXD_L4ID_S) - == HNS_RX_FLAG_L4ID_UDP) { - if ((typeof(max_size))(network - data) > - (max_size - sizeof(struct udphdr))) - return max_size; - - network += sizeof(struct udphdr); - } - - /* If everything has gone correctly network should be the - * data section of the packet and will be the end of the header. - * If not then it probably represents the end of the last recognized - * header. - */ - if ((typeof(max_size))(network - data) < max_size) - return network - data; - else - return max_size; -} - static void hns_nic_reuse_page(struct sk_buff *skb, int i, struct hnae_ring *ring, int pull_len, struct hnae_desc_cb *desc_cb) @@ -696,7 +595,7 @@ static int hns_nic_poll_rx_skb(struct hns_nic_ring_data *ring_data, } else { ring->stats.seg_pkt_cnt++; - pull_len = hns_nic_get_headlen(va, bnum_flag, HNS_RX_HEAD_SIZE); + pull_len = eth_get_headlen(va, HNS_RX_HEAD_SIZE); memcpy(__skb_put(skb, pull_len), va, ALIGN(pull_len, sizeof(long))); From d23c4b6336ef30898dcdff351f21e633e7a64930 Mon Sep 17 00:00:00 2001 From: Hangbin Liu Date: Thu, 23 Aug 2018 11:31:37 +0800 Subject: [PATCH 0073/1762] net/ipv6: init ip6 anycast rt->dst.input as ip6_input Commit 6edb3c96a5f02 ("net/ipv6: Defer initialization of dst to data path") forgot to handle anycast route and init anycast rt->dst.input to ip6_forward. Fix it by setting anycast rt->dst.input back to ip6_input. Fixes: 6edb3c96a5f02 ("net/ipv6: Defer initialization of dst to data path") Signed-off-by: Hangbin Liu Reviewed-by: David Ahern Signed-off-by: David S. Miller --- net/ipv6/route.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 7208c16302f6..c4ea13e8360b 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -956,7 +956,7 @@ static void ip6_rt_init_dst(struct rt6_info *rt, struct fib6_info *ort) rt->dst.error = 0; rt->dst.output = ip6_output; - if (ort->fib6_type == RTN_LOCAL) { + if (ort->fib6_type == RTN_LOCAL || ort->fib6_type == RTN_ANYCAST) { rt->dst.input = ip6_input; } else if (ipv6_addr_type(&ort->fib6_dst.addr) & IPV6_ADDR_MULTICAST) { rt->dst.input = ip6_mc_input; From 27a5959308559fa6afcaa4e6cd81d25bcb2dda7c Mon Sep 17 00:00:00 2001 From: Huazhong Tan Date: Thu, 23 Aug 2018 11:37:15 +0800 Subject: [PATCH 0074/1762] net: hns3: fix page_offset overflow when CONFIG_ARM64_64K_PAGES When enable the config item "CONFIG_ARM64_64K_PAGES", the size of PAGE_SIZE is 65536(64K). But the type of page_offset is u16, it will overflow. So change it to u32, when "CONFIG_ARM64_64K_PAGES" enabled. Fixes: 76ad4f0ee747 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC") Signed-off-by: Huazhong Tan Signed-off-by: Salil Mehta Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h index a02a96aee2a2..cb450d7ec8c1 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h @@ -284,11 +284,11 @@ struct hns3_desc_cb { /* priv data for the desc, e.g. skb when use with ip stack*/ void *priv; - u16 page_offset; - u16 reuse_flag; - + u32 page_offset; u32 length; /* length of the buffer */ + u16 reuse_flag; + /* desc type, used by the ring user to mark the type of the priv data */ u16 type; }; From 583e7281f1d8234f3a3e483bd6fba7a72d24aa4e Mon Sep 17 00:00:00 2001 From: Huazhong Tan Date: Thu, 23 Aug 2018 11:37:16 +0800 Subject: [PATCH 0075/1762] net: hns3: modify variable type in hns3_nic_reuse_page 'truesize' is supposed to be u32, not int, so fix it. Signed-off-by: Huazhong tan Signed-off-by: Salil Mehta Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 3554dca7a680..955c4ab18b03 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -2019,7 +2019,8 @@ static void hns3_nic_reuse_page(struct sk_buff *skb, int i, struct hns3_desc_cb *desc_cb) { struct hns3_desc *desc; - int truesize, size; + u32 truesize; + int size; int last_offset; bool twobufs; From 9faf870e559a710c44e747ba20383ea82d8ac5d2 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Wed, 22 Aug 2018 21:28:01 +0300 Subject: [PATCH 0076/1762] mmc: renesas_sdhi_internal_dmac: fix #define RST_RESERVED_BITS The DM_CM_RST register actually has bits 0-31 defaulting to 1s and bits 32-63 defaulting to 0s -- fix off-by-one in #define RST_RESERVED_BITS. Signed-off-by: Sergei Shtylyov Reviewed-by: Wolfram Sang Fixes: 2a68ea7896e3 ("mmc: renesas-sdhi: add support for R-Car Gen3 SDHI DMAC") Cc: stable@vger.kernel.org # v4.14+ Signed-off-by: Ulf Hansson --- drivers/mmc/host/renesas_sdhi_internal_dmac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c index 35cc0de6be67..f16677f424b9 100644 --- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c +++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c @@ -45,7 +45,7 @@ /* DM_CM_RST */ #define RST_DTRANRST1 BIT(9) #define RST_DTRANRST0 BIT(8) -#define RST_RESERVED_BITS GENMASK_ULL(32, 0) +#define RST_RESERVED_BITS GENMASK_ULL(31, 0) /* DM_CM_INFO1 and DM_CM_INFO1_MASK */ #define INFO1_CLEAR 0 From d2332f887ddfba50fee93b8e1736376517c2df0c Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Wed, 22 Aug 2018 21:22:26 +0300 Subject: [PATCH 0077/1762] mmc: renesas_sdhi_internal_dmac: mask DMAC interrupts I have encountered an interrupt storm during the eMMC chip probing (and the chip finally didn't get detected). It turned out that U-Boot left the SDHI DMA interrupts enabled while the Linux driver didn't use those. Masking those interrupts in renesas_sdhi_internal_dmac_request_dma() gets rid of both issues... Signed-off-by: Sergei Shtylyov Reviewed-by: Wolfram Sang Fixes: 2a68ea7896e3 ("mmc: renesas-sdhi: add support for R-Car Gen3 SDHI DMAC") Cc: stable@vger.kernel.org # v4.14+ Signed-off-by: Ulf Hansson --- drivers/mmc/host/renesas_sdhi_internal_dmac.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c index f16677f424b9..ca0b43973769 100644 --- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c +++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c @@ -49,10 +49,12 @@ /* DM_CM_INFO1 and DM_CM_INFO1_MASK */ #define INFO1_CLEAR 0 +#define INFO1_MASK_CLEAR GENMASK_ULL(31, 0) #define INFO1_DTRANEND1 BIT(17) #define INFO1_DTRANEND0 BIT(16) /* DM_CM_INFO2 and DM_CM_INFO2_MASK */ +#define INFO2_MASK_CLEAR GENMASK_ULL(31, 0) #define INFO2_DTRANERR1 BIT(17) #define INFO2_DTRANERR0 BIT(16) @@ -252,6 +254,12 @@ renesas_sdhi_internal_dmac_request_dma(struct tmio_mmc_host *host, { struct renesas_sdhi *priv = host_to_priv(host); + /* Disable DMAC interrupts, we don't use them */ + renesas_sdhi_internal_dmac_dm_write(host, DM_CM_INFO1_MASK, + INFO1_MASK_CLEAR); + renesas_sdhi_internal_dmac_dm_write(host, DM_CM_INFO2_MASK, + INFO2_MASK_CLEAR); + /* Each value is set to non-zero to assume "enabling" each DMA */ host->chan_rx = host->chan_tx = (void *)0xdeadbeaf; From d4682ba03ef618b6ef4be7cedc7aacaf505d3a58 Mon Sep 17 00:00:00 2001 From: Filipe Manana Date: Mon, 11 Jun 2018 19:24:28 +0100 Subject: [PATCH 0078/1762] Btrfs: sync log after logging new name When we add a new name for an inode which was logged in the current transaction, we update the inode in the log so that its new name and ancestors are added to the log. However when we do this we do not persist the log, so the changes remain in memory only, and as a consequence, any ancestors that were created in the current transaction are updated such that future calls to btrfs_inode_in_log() return true. This leads to a subsequent fsync against such new ancestor directories returning immediately, without persisting the log, therefore after a power failure the new ancestor directories do not exist, despite fsync being called against them explicitly. Example: $ mkfs.btrfs -f /dev/sdb $ mount /dev/sdb /mnt $ mkdir /mnt/A $ mkdir /mnt/B $ mkdir /mnt/A/C $ touch /mnt/B/foo $ xfs_io -c "fsync" /mnt/B/foo $ ln /mnt/B/foo /mnt/A/C/foo $ xfs_io -c "fsync" /mnt/A After the power failure, directory "A" does not exist, despite the explicit fsync on it. Instead of fixing this by changing the behaviour of the explicit fsync on directory "A" to persist the log instead of doing nothing, make the logging of the new file name (which happens when creating a hard link or renaming) persist the log. This approach not only is simpler, not requiring addition of new fields to the inode in memory structure, but also gives us the same behaviour as ext4, xfs and f2fs (possibly other filesystems too). A test case for fstests follows soon. Fixes: 12fcfd22fe5b ("Btrfs: tree logging unlink/rename fixes") Reported-by: Vijay Chidambaram Signed-off-by: Filipe Manana Signed-off-by: David Sterba --- fs/btrfs/inode.c | 92 +++++++++++++++++++++++++++++++++++++++------ fs/btrfs/tree-log.c | 48 ++++++++++++++++++++--- fs/btrfs/tree-log.h | 10 ++++- 3 files changed, 131 insertions(+), 19 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index c6d8c5d19ff0..cb09873ad270 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -6634,6 +6634,8 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir, drop_inode = 1; } else { struct dentry *parent = dentry->d_parent; + int ret; + err = btrfs_update_inode(trans, root, inode); if (err) goto fail; @@ -6647,7 +6649,12 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir, goto fail; } d_instantiate(dentry, inode); - btrfs_log_new_name(trans, BTRFS_I(inode), NULL, parent); + ret = btrfs_log_new_name(trans, BTRFS_I(inode), NULL, parent, + true, NULL); + if (ret == BTRFS_NEED_TRANS_COMMIT) { + err = btrfs_commit_transaction(trans); + trans = NULL; + } } fail: @@ -9386,14 +9393,21 @@ static int btrfs_rename_exchange(struct inode *old_dir, u64 new_idx = 0; u64 root_objectid; int ret; - int ret2; bool root_log_pinned = false; bool dest_log_pinned = false; + struct btrfs_log_ctx ctx_root; + struct btrfs_log_ctx ctx_dest; + bool sync_log_root = false; + bool sync_log_dest = false; + bool commit_transaction = false; /* we only allow rename subvolume link between subvolumes */ if (old_ino != BTRFS_FIRST_FREE_OBJECTID && root != dest) return -EXDEV; + btrfs_init_log_ctx(&ctx_root, old_inode); + btrfs_init_log_ctx(&ctx_dest, new_inode); + /* close the race window with snapshot create/destroy ioctl */ if (old_ino == BTRFS_FIRST_FREE_OBJECTID) down_read(&fs_info->subvol_sem); @@ -9540,15 +9554,29 @@ static int btrfs_rename_exchange(struct inode *old_dir, if (root_log_pinned) { parent = new_dentry->d_parent; - btrfs_log_new_name(trans, BTRFS_I(old_inode), BTRFS_I(old_dir), - parent); + ret = btrfs_log_new_name(trans, BTRFS_I(old_inode), + BTRFS_I(old_dir), parent, + false, &ctx_root); + if (ret == BTRFS_NEED_LOG_SYNC) + sync_log_root = true; + else if (ret == BTRFS_NEED_TRANS_COMMIT) + commit_transaction = true; + ret = 0; btrfs_end_log_trans(root); root_log_pinned = false; } if (dest_log_pinned) { - parent = old_dentry->d_parent; - btrfs_log_new_name(trans, BTRFS_I(new_inode), BTRFS_I(new_dir), - parent); + if (!commit_transaction) { + parent = old_dentry->d_parent; + ret = btrfs_log_new_name(trans, BTRFS_I(new_inode), + BTRFS_I(new_dir), parent, + false, &ctx_dest); + if (ret == BTRFS_NEED_LOG_SYNC) + sync_log_dest = true; + else if (ret == BTRFS_NEED_TRANS_COMMIT) + commit_transaction = true; + ret = 0; + } btrfs_end_log_trans(dest); dest_log_pinned = false; } @@ -9581,8 +9609,26 @@ out_fail: dest_log_pinned = false; } } - ret2 = btrfs_end_transaction(trans); - ret = ret ? ret : ret2; + if (!ret && sync_log_root && !commit_transaction) { + ret = btrfs_sync_log(trans, BTRFS_I(old_inode)->root, + &ctx_root); + if (ret) + commit_transaction = true; + } + if (!ret && sync_log_dest && !commit_transaction) { + ret = btrfs_sync_log(trans, BTRFS_I(new_inode)->root, + &ctx_dest); + if (ret) + commit_transaction = true; + } + if (commit_transaction) { + ret = btrfs_commit_transaction(trans); + } else { + int ret2; + + ret2 = btrfs_end_transaction(trans); + ret = ret ? ret : ret2; + } out_notrans: if (new_ino == BTRFS_FIRST_FREE_OBJECTID) up_read(&fs_info->subvol_sem); @@ -9659,6 +9705,9 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry, int ret; u64 old_ino = btrfs_ino(BTRFS_I(old_inode)); bool log_pinned = false; + struct btrfs_log_ctx ctx; + bool sync_log = false; + bool commit_transaction = false; if (btrfs_ino(BTRFS_I(new_dir)) == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID) return -EPERM; @@ -9816,8 +9865,15 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry, if (log_pinned) { struct dentry *parent = new_dentry->d_parent; - btrfs_log_new_name(trans, BTRFS_I(old_inode), BTRFS_I(old_dir), - parent); + btrfs_init_log_ctx(&ctx, old_inode); + ret = btrfs_log_new_name(trans, BTRFS_I(old_inode), + BTRFS_I(old_dir), parent, + false, &ctx); + if (ret == BTRFS_NEED_LOG_SYNC) + sync_log = true; + else if (ret == BTRFS_NEED_TRANS_COMMIT) + commit_transaction = true; + ret = 0; btrfs_end_log_trans(root); log_pinned = false; } @@ -9854,7 +9910,19 @@ out_fail: btrfs_end_log_trans(root); log_pinned = false; } - btrfs_end_transaction(trans); + if (!ret && sync_log) { + ret = btrfs_sync_log(trans, BTRFS_I(old_inode)->root, &ctx); + if (ret) + commit_transaction = true; + } + if (commit_transaction) { + ret = btrfs_commit_transaction(trans); + } else { + int ret2; + + ret2 = btrfs_end_transaction(trans); + ret = ret ? ret : ret2; + } out_notrans: if (old_ino == BTRFS_FIRST_FREE_OBJECTID) up_read(&fs_info->subvol_sem); diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 1650dc44a5e3..3c2ae0e4f25a 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -6025,14 +6025,25 @@ void btrfs_record_snapshot_destroy(struct btrfs_trans_handle *trans, * Call this after adding a new name for a file and it will properly * update the log to reflect the new name. * - * It will return zero if all goes well, and it will return 1 if a - * full transaction commit is required. + * @ctx can not be NULL when @sync_log is false, and should be NULL when it's + * true (because it's not used). + * + * Return value depends on whether @sync_log is true or false. + * When true: returns BTRFS_NEED_TRANS_COMMIT if the transaction needs to be + * committed by the caller, and BTRFS_DONT_NEED_TRANS_COMMIT + * otherwise. + * When false: returns BTRFS_DONT_NEED_LOG_SYNC if the caller does not need to + * to sync the log, BTRFS_NEED_LOG_SYNC if it needs to sync the log, + * or BTRFS_NEED_TRANS_COMMIT if the transaction needs to be + * committed (without attempting to sync the log). */ int btrfs_log_new_name(struct btrfs_trans_handle *trans, struct btrfs_inode *inode, struct btrfs_inode *old_dir, - struct dentry *parent) + struct dentry *parent, + bool sync_log, struct btrfs_log_ctx *ctx) { struct btrfs_fs_info *fs_info = trans->fs_info; + int ret; /* * this will force the logging code to walk the dentry chain @@ -6047,9 +6058,34 @@ int btrfs_log_new_name(struct btrfs_trans_handle *trans, */ if (inode->logged_trans <= fs_info->last_trans_committed && (!old_dir || old_dir->logged_trans <= fs_info->last_trans_committed)) - return 0; + return sync_log ? BTRFS_DONT_NEED_TRANS_COMMIT : + BTRFS_DONT_NEED_LOG_SYNC; - return btrfs_log_inode_parent(trans, inode, parent, 0, LLONG_MAX, - LOG_INODE_EXISTS, NULL); + if (sync_log) { + struct btrfs_log_ctx ctx2; + + btrfs_init_log_ctx(&ctx2, &inode->vfs_inode); + ret = btrfs_log_inode_parent(trans, inode, parent, 0, LLONG_MAX, + LOG_INODE_EXISTS, &ctx2); + if (ret == BTRFS_NO_LOG_SYNC) + return BTRFS_DONT_NEED_TRANS_COMMIT; + else if (ret) + return BTRFS_NEED_TRANS_COMMIT; + + ret = btrfs_sync_log(trans, inode->root, &ctx2); + if (ret) + return BTRFS_NEED_TRANS_COMMIT; + return BTRFS_DONT_NEED_TRANS_COMMIT; + } + + ASSERT(ctx); + ret = btrfs_log_inode_parent(trans, inode, parent, 0, LLONG_MAX, + LOG_INODE_EXISTS, ctx); + if (ret == BTRFS_NO_LOG_SYNC) + return BTRFS_DONT_NEED_LOG_SYNC; + else if (ret) + return BTRFS_NEED_TRANS_COMMIT; + + return BTRFS_NEED_LOG_SYNC; } diff --git a/fs/btrfs/tree-log.h b/fs/btrfs/tree-log.h index 122e68b89a5a..7ab9bb88a639 100644 --- a/fs/btrfs/tree-log.h +++ b/fs/btrfs/tree-log.h @@ -71,8 +71,16 @@ void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans, int for_rename); void btrfs_record_snapshot_destroy(struct btrfs_trans_handle *trans, struct btrfs_inode *dir); +/* Return values for btrfs_log_new_name() */ +enum { + BTRFS_DONT_NEED_TRANS_COMMIT, + BTRFS_NEED_TRANS_COMMIT, + BTRFS_DONT_NEED_LOG_SYNC, + BTRFS_NEED_LOG_SYNC, +}; int btrfs_log_new_name(struct btrfs_trans_handle *trans, struct btrfs_inode *inode, struct btrfs_inode *old_dir, - struct dentry *parent); + struct dentry *parent, + bool sync_log, struct btrfs_log_ctx *ctx); #endif From de02b9f6bb65a6a1848f346f7a3617b7a9b930c0 Mon Sep 17 00:00:00 2001 From: Filipe Manana Date: Fri, 17 Aug 2018 09:38:59 +0100 Subject: [PATCH 0079/1762] Btrfs: fix data corruption when deduplicating between different files If we deduplicate extents between two different files we can end up corrupting data if the source range ends at the size of the source file, the source file's size is not aligned to the filesystem's block size and the destination range does not go past the size of the destination file size. Example: $ mkfs.btrfs -f /dev/sdb $ mount /dev/sdb /mnt $ xfs_io -f -c "pwrite -S 0x6b 0 2518890" /mnt/foo # The first byte with a value of 0xae starts at an offset (2518890) # which is not a multiple of the sector size. $ xfs_io -c "pwrite -S 0xae 2518890 102398" /mnt/foo # Confirm the file content is full of bytes with values 0x6b and 0xae. $ od -t x1 /mnt/foo 0000000 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b * 11467540 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b ae ae ae ae ae ae 11467560 ae ae ae ae ae ae ae ae ae ae ae ae ae ae ae ae * 11777540 ae ae ae ae ae ae ae ae 11777550 # Create a second file with a length not aligned to the sector size, # whose bytes all have the value 0x6b, so that its extent(s) can be # deduplicated with the first file. $ xfs_io -f -c "pwrite -S 0x6b 0 557771" /mnt/bar # Now deduplicate the entire second file into a range of the first file # that also has all bytes with the value 0x6b. The destination range's # end offset must not be aligned to the sector size and must be less # then the offset of the first byte with the value 0xae (byte at offset # 2518890). $ xfs_io -c "dedupe /mnt/bar 0 1957888 557771" /mnt/foo # The bytes in the range starting at offset 2515659 (end of the # deduplication range) and ending at offset 2519040 (start offset # rounded up to the block size) must all have the value 0xae (and not # replaced with 0x00 values). In other words, we should have exactly # the same data we had before we asked for deduplication. $ od -t x1 /mnt/foo 0000000 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b * 11467540 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b ae ae ae ae ae ae 11467560 ae ae ae ae ae ae ae ae ae ae ae ae ae ae ae ae * 11777540 ae ae ae ae ae ae ae ae 11777550 # Unmount the filesystem and mount it again. This guarantees any file # data in the page cache is dropped. $ umount /dev/sdb $ mount /dev/sdb /mnt $ od -t x1 /mnt/foo 0000000 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b * 11461300 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 00 11461320 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 * 11470000 ae ae ae ae ae ae ae ae ae ae ae ae ae ae ae ae * 11777540 ae ae ae ae ae ae ae ae 11777550 # The bytes in range 2515659 to 2519040 have a value of 0x00 and not a # value of 0xae, data corruption happened due to the deduplication # operation. So fix this by rounding down, to the sector size, the length used for the deduplication when the following conditions are met: 1) Source file's range ends at its i_size; 2) Source file's i_size is not aligned to the sector size; 3) Destination range does not cross the i_size of the destination file. Fixes: e1d227a42ea2 ("btrfs: Handle unaligned length in extent_same") CC: stable@vger.kernel.org # 4.2+ Signed-off-by: Filipe Manana Signed-off-by: David Sterba --- fs/btrfs/ioctl.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 85c4284bb2cf..011ddfcc96e2 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -3469,6 +3469,25 @@ static int btrfs_extent_same_range(struct inode *src, u64 loff, u64 olen, same_lock_start = min_t(u64, loff, dst_loff); same_lock_len = max_t(u64, loff, dst_loff) + len - same_lock_start; + } else { + /* + * If the source and destination inodes are different, the + * source's range end offset matches the source's i_size, that + * i_size is not a multiple of the sector size, and the + * destination range does not go past the destination's i_size, + * we must round down the length to the nearest sector size + * multiple. If we don't do this adjustment we end replacing + * with zeroes the bytes in the range that starts at the + * deduplication range's end offset and ends at the next sector + * size multiple. + */ + if (loff + olen == i_size_read(src) && + dst_loff + len < i_size_read(dst)) { + const u64 sz = BTRFS_I(src)->root->fs_info->sectorsize; + + len = round_down(i_size_read(src), sz) - loff; + olen = len; + } } again: From a5b7f4295eeae8b05ca91f6d145cd8773b08de9e Mon Sep 17 00:00:00 2001 From: Lu Fengqi Date: Thu, 9 Aug 2018 09:46:04 +0800 Subject: [PATCH 0080/1762] btrfs: fix qgroup_free wrong num_bytes in btrfs_subvolume_reserve_metadata After btrfs_qgroup_reserve_meta_prealloc(), num_bytes will be assigned again by btrfs_calc_trans_metadata_size(). Once block_rsv fails, we can't properly free the num_bytes of the previous qgroup_reserve. Use a separate variable to store the num_bytes of the qgroup_reserve. Delete the comment for the qgroup_reserved that does not exist and add a comment about use_global_rsv. Fixes: c4c129db5da8 ("btrfs: drop unused parameter qgroup_reserved") CC: stable@vger.kernel.org # 4.18+ Signed-off-by: Lu Fengqi Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/extent-tree.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index de6f75f5547b..2d9074295d7f 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -5800,7 +5800,7 @@ void btrfs_trans_release_chunk_metadata(struct btrfs_trans_handle *trans) * root: the root of the parent directory * rsv: block reservation * items: the number of items that we need do reservation - * qgroup_reserved: used to return the reserved size in qgroup + * use_global_rsv: allow fallback to the global block reservation * * This function is used to reserve the space for snapshot/subvolume * creation and deletion. Those operations are different with the @@ -5810,10 +5810,10 @@ void btrfs_trans_release_chunk_metadata(struct btrfs_trans_handle *trans) * the space reservation mechanism in start_transaction(). */ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root, - struct btrfs_block_rsv *rsv, - int items, + struct btrfs_block_rsv *rsv, int items, bool use_global_rsv) { + u64 qgroup_num_bytes = 0; u64 num_bytes; int ret; struct btrfs_fs_info *fs_info = root->fs_info; @@ -5821,12 +5821,11 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root, if (test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags)) { /* One for parent inode, two for dir entries */ - num_bytes = 3 * fs_info->nodesize; - ret = btrfs_qgroup_reserve_meta_prealloc(root, num_bytes, true); + qgroup_num_bytes = 3 * fs_info->nodesize; + ret = btrfs_qgroup_reserve_meta_prealloc(root, + qgroup_num_bytes, true); if (ret) return ret; - } else { - num_bytes = 0; } num_bytes = btrfs_calc_trans_metadata_size(fs_info, items); @@ -5838,8 +5837,8 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root, if (ret == -ENOSPC && use_global_rsv) ret = btrfs_block_rsv_migrate(global_rsv, rsv, num_bytes, 1); - if (ret && num_bytes) - btrfs_qgroup_free_meta_prealloc(root, num_bytes); + if (ret && qgroup_num_bytes) + btrfs_qgroup_free_meta_prealloc(root, qgroup_num_bytes); return ret; } From 801660b040d132f67fac6a95910ad307c5929b49 Mon Sep 17 00:00:00 2001 From: Anand Jain Date: Mon, 6 Aug 2018 18:12:37 +0800 Subject: [PATCH 0081/1762] btrfs: btrfs_shrink_device should call commit transaction at the end Test case btrfs/164 reports use-after-free: [ 6712.084324] general protection fault: 0000 [#1] PREEMPT SMP .. [ 6712.195423] btrfs_update_commit_device_size+0x75/0xf0 [btrfs] [ 6712.201424] btrfs_commit_transaction+0x57d/0xa90 [btrfs] [ 6712.206999] btrfs_rm_device+0x627/0x850 [btrfs] [ 6712.211800] btrfs_ioctl+0x2b03/0x3120 [btrfs] Reason for this is that btrfs_shrink_device adds the resized device to the fs_devices::resized_devices after it has called the last commit transaction. So the list fs_devices::resized_devices is not empty when btrfs_shrink_device returns. Now the parent function btrfs_rm_device calls: btrfs_close_bdev(device); call_rcu(&device->rcu, free_device_rcu); and then does the transactio ncommit. It goes through the fs_devices::resized_devices in btrfs_update_commit_device_size and leads to use-after-free. Fix this by making sure btrfs_shrink_device calls the last needed btrfs_commit_transaction before the return. This is consistent with what the grow counterpart does and this makes sure the on-disk state is persistent when the function returns. Reported-by: Lu Fengqi Tested-by: Lu Fengqi Signed-off-by: Anand Jain Reviewed-by: David Sterba [ update changelog ] Signed-off-by: David Sterba --- fs/btrfs/volumes.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index da86706123ff..f4405e430da6 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -4491,7 +4491,12 @@ again: /* Now btrfs_update_device() will change the on-disk size. */ ret = btrfs_update_device(trans, device); - btrfs_end_transaction(trans); + if (ret < 0) { + btrfs_abort_transaction(trans, ret); + btrfs_end_transaction(trans); + } else { + ret = btrfs_commit_transaction(trans); + } done: btrfs_free_path(path); if (ret) { From b9b8a41adeff5666b402996020b698504c927353 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 20 Aug 2018 11:25:33 +0300 Subject: [PATCH 0082/1762] btrfs: use after free in btrfs_quota_enable The issue here is that btrfs_commit_transaction() frees "trans" on both the error and the success path. So the problem would be if btrfs_commit_transaction() succeeds, and then qgroup_rescan_init() fails. That means that "ret" is non-zero and "trans" is non-NULL and it leads to a use after free inside the btrfs_end_transaction() macro. Fixes: 340f1aa27f36 ("btrfs: qgroups: Move transaction management inside btrfs_quota_enable/disable") Signed-off-by: Dan Carpenter Reviewed-by: Nikolay Borisov Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/qgroup.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 4353bb69bb86..d4917c0cddf5 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -1019,10 +1019,9 @@ out_add_root: spin_unlock(&fs_info->qgroup_lock); ret = btrfs_commit_transaction(trans); - if (ret) { - trans = NULL; + trans = NULL; + if (ret) goto out_free_path; - } ret = qgroup_rescan_init(fs_info, 0, 1); if (!ret) { From 4381147df9098706caa5cf9fda37e53b2fe4871f Mon Sep 17 00:00:00 2001 From: Anirudh Venkataramanan Date: Thu, 9 Aug 2018 06:28:51 -0700 Subject: [PATCH 0083/1762] ice: Fix multiple static analyser warnings This patch fixes the following smatch errors: 1) Fix "odd binop '0x0 & 0xc'" when performing the bitwise-and with a constant value of zero (ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_128_FLAG). Remove a similar bitwise-and with 0 in ice_add_marker_act() and use the right mask ICE_LG_ACT_GENERIC_OFFSET_M in the expression. 2) Fix a similar issue "odd binop '0x0 & 0x1800' in ice_req_irq_msix_misc. 3) Fix "odd binop '0x380000 & 0x7fff8'" in ice_add_marker_act(). Also, use a new define ICE_LG_ACT_GENERIC_OFF_RX_DESC_PROF_IDX instead of magic number '7'. 4) Fix warn: odd binop '0x0 & 0x18' in ice_set_dflt_vsi_ctx() by removing unnecessary logic to explicitly unset bits 3 and 4 in port_vlan_bits. These bits are unset already by the memset on ctxt->info. Reported-by: Dan Carpenter Signed-off-by: Anirudh Venkataramanan Tested-by: Tony Brelinski Signed-off-by: Jeff Kirsher --- .../net/ethernet/intel/ice/ice_adminq_cmd.h | 1 + drivers/net/ethernet/intel/ice/ice_common.c | 25 +++++++++++-------- drivers/net/ethernet/intel/ice/ice_main.c | 19 ++++++-------- drivers/net/ethernet/intel/ice/ice_switch.c | 4 +-- 4 files changed, 25 insertions(+), 24 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h index 7541ec2270b3..6d3e11659ba5 100644 --- a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h +++ b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h @@ -594,6 +594,7 @@ struct ice_sw_rule_lg_act { #define ICE_LG_ACT_GENERIC_OFFSET_M (0x7 << ICE_LG_ACT_GENERIC_OFFSET_S) #define ICE_LG_ACT_GENERIC_PRIORITY_S 22 #define ICE_LG_ACT_GENERIC_PRIORITY_M (0x7 << ICE_LG_ACT_GENERIC_PRIORITY_S) +#define ICE_LG_ACT_GENERIC_OFF_RX_DESC_PROF_IDX 7 /* Action = 7 - Set Stat count */ #define ICE_LG_ACT_STAT_COUNT 0x7 diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index 71d032cc5fa7..d5300b606d5a 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -1619,20 +1619,23 @@ __ice_aq_get_set_rss_lut(struct ice_hw *hw, u16 vsi_id, u8 lut_type, u8 *lut, } /* LUT size is only valid for Global and PF table types */ - if (lut_size == ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_128) { - flags |= (ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_128_FLAG << - ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_S) & - ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_M; - } else if (lut_size == ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_512) { + switch (lut_size) { + case ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_128: + break; + case ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_512: flags |= (ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_512_FLAG << ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_S) & ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_M; - } else if ((lut_size == ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_2K) && - (lut_type == ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_PF)) { - flags |= (ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_2K_FLAG << - ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_S) & - ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_M; - } else { + break; + case ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_2K: + if (lut_type == ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_PF) { + flags |= (ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_2K_FLAG << + ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_S) & + ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_M; + break; + } + /* fall-through */ + default: status = ICE_ERR_PARAM; goto ice_aq_get_set_rss_lut_exit; } diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 5299caf55a7f..186e764a469a 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -1352,14 +1352,13 @@ static void ice_set_dflt_vsi_ctx(struct ice_vsi_ctx *ctxt) ctxt->info.sw_flags = ICE_AQ_VSI_SW_FLAG_SRC_PRUNE; /* Traffic from VSI can be sent to LAN */ ctxt->info.sw_flags2 = ICE_AQ_VSI_SW_FLAG_LAN_ENA; - /* Allow all packets untagged/tagged */ + /* By default bits 3 and 4 in port_vlan_flags are 0's which results in + * legacy behavior (show VLAN, DEI, and UP) in descriptor. Also, allow + * all packets untagged/tagged. + */ ctxt->info.port_vlan_flags = ((ICE_AQ_VSI_PVLAN_MODE_ALL & ICE_AQ_VSI_PVLAN_MODE_M) >> ICE_AQ_VSI_PVLAN_MODE_S); - /* Show VLAN/UP from packets in Rx descriptors */ - ctxt->info.port_vlan_flags |= ((ICE_AQ_VSI_PVLAN_EMOD_STR_BOTH & - ICE_AQ_VSI_PVLAN_EMOD_M) >> - ICE_AQ_VSI_PVLAN_EMOD_S); /* Have 1:1 UP mapping for both ingress/egress tables */ table |= ICE_UP_TABLE_TRANSLATE(0, 0); table |= ICE_UP_TABLE_TRANSLATE(1, 1); @@ -2058,15 +2057,13 @@ static int ice_req_irq_msix_misc(struct ice_pf *pf) skip_req_irq: ice_ena_misc_vector(pf); - val = (pf->oicr_idx & PFINT_OICR_CTL_MSIX_INDX_M) | - (ICE_RX_ITR & PFINT_OICR_CTL_ITR_INDX_M) | - PFINT_OICR_CTL_CAUSE_ENA_M; + val = ((pf->oicr_idx & PFINT_OICR_CTL_MSIX_INDX_M) | + PFINT_OICR_CTL_CAUSE_ENA_M); wr32(hw, PFINT_OICR_CTL, val); /* This enables Admin queue Interrupt causes */ - val = (pf->oicr_idx & PFINT_FW_CTL_MSIX_INDX_M) | - (ICE_RX_ITR & PFINT_FW_CTL_ITR_INDX_M) | - PFINT_FW_CTL_CAUSE_ENA_M; + val = ((pf->oicr_idx & PFINT_FW_CTL_MSIX_INDX_M) | + PFINT_FW_CTL_CAUSE_ENA_M); wr32(hw, PFINT_FW_CTL, val); itr_gran = hw->itr_gran_200; diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c index 723d15f1e90b..6b7ec2ae5ad6 100644 --- a/drivers/net/ethernet/intel/ice/ice_switch.c +++ b/drivers/net/ethernet/intel/ice/ice_switch.c @@ -645,14 +645,14 @@ ice_add_marker_act(struct ice_hw *hw, struct ice_fltr_mgmt_list_entry *m_ent, act |= (1 << ICE_LG_ACT_GENERIC_VALUE_S) & ICE_LG_ACT_GENERIC_VALUE_M; lg_act->pdata.lg_act.act[1] = cpu_to_le32(act); - act = (7 << ICE_LG_ACT_GENERIC_OFFSET_S) & ICE_LG_ACT_GENERIC_VALUE_M; + act = (ICE_LG_ACT_GENERIC_OFF_RX_DESC_PROF_IDX << + ICE_LG_ACT_GENERIC_OFFSET_S) & ICE_LG_ACT_GENERIC_OFFSET_M; /* Third action Marker value */ act |= ICE_LG_ACT_GENERIC; act |= (sw_marker << ICE_LG_ACT_GENERIC_VALUE_S) & ICE_LG_ACT_GENERIC_VALUE_M; - act |= (0 << ICE_LG_ACT_GENERIC_OFFSET_S) & ICE_LG_ACT_GENERIC_VALUE_M; lg_act->pdata.lg_act.act[2] = cpu_to_le32(act); /* call the fill switch rule to fill the lookup tx rx structure */ From 6efa6239e7f8777dccddcebb643e6d9a0304bf43 Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Thu, 9 Aug 2018 06:28:52 -0700 Subject: [PATCH 0084/1762] ice: Remove unnecessary node owner check There is already a check for owner == ICE_SCHED_NODE_OWNER_LAN at the beginning of ice_sched_update_vsi_child_nodes. Remove the additional check to address the static analysis tool smatch issue "warn: we tested 'owner' before and it was 'false'". Signed-off-by: Bruce Allan Signed-off-by: Anirudh Venkataramanan Tested-by: Tony Brelinski Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_sched.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c index 2e6c1d92cc88..eeae199469b6 100644 --- a/drivers/net/ethernet/intel/ice/ice_sched.c +++ b/drivers/net/ethernet/intel/ice/ice_sched.c @@ -1576,8 +1576,7 @@ ice_sched_update_vsi_child_nodes(struct ice_port_info *pi, u16 vsi_id, u8 tc, return status; } - if (owner == ICE_SCHED_NODE_OWNER_LAN) - vsi->max_lanq[tc] = new_numqs; + vsi->max_lanq[tc] = new_numqs; return status; } From c0203475765f827e7b2eaf0a87222d0766e2cc4b Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Wed, 22 Aug 2018 23:49:37 +0200 Subject: [PATCH 0085/1762] bpf: use per htab salt for bucket hash All BPF hash and LRU maps currently have a known and global seed we feed into jhash() which is 0. This is suboptimal, thus fix it by generating a random seed upon hashtab setup time which we can later on feed into jhash() on lookup, update and deletions. Fixes: 0f8e4bd8a1fc8 ("bpf: add hashtable type of eBPF maps") Signed-off-by: Daniel Borkmann Acked-by: Alexei Starovoitov Acked-by: Song Liu Reviewed-by: Eduardo Valentin --- kernel/bpf/hashtab.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c index 04b8eda94e7d..03cc59ee9c95 100644 --- a/kernel/bpf/hashtab.c +++ b/kernel/bpf/hashtab.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include "percpu_freelist.h" #include "bpf_lru_list.h" @@ -41,6 +42,7 @@ struct bpf_htab { atomic_t count; /* number of elements in this hashtable */ u32 n_buckets; /* number of hash buckets */ u32 elem_size; /* size of each element in bytes */ + u32 hashrnd; }; /* each htab element is struct htab_elem + key + value */ @@ -371,6 +373,7 @@ static struct bpf_map *htab_map_alloc(union bpf_attr *attr) if (!htab->buckets) goto free_htab; + htab->hashrnd = get_random_int(); for (i = 0; i < htab->n_buckets; i++) { INIT_HLIST_NULLS_HEAD(&htab->buckets[i].head, i); raw_spin_lock_init(&htab->buckets[i].lock); @@ -402,9 +405,9 @@ free_htab: return ERR_PTR(err); } -static inline u32 htab_map_hash(const void *key, u32 key_len) +static inline u32 htab_map_hash(const void *key, u32 key_len, u32 hashrnd) { - return jhash(key, key_len, 0); + return jhash(key, key_len, hashrnd); } static inline struct bucket *__select_bucket(struct bpf_htab *htab, u32 hash) @@ -470,7 +473,7 @@ static void *__htab_map_lookup_elem(struct bpf_map *map, void *key) key_size = map->key_size; - hash = htab_map_hash(key, key_size); + hash = htab_map_hash(key, key_size, htab->hashrnd); head = select_bucket(htab, hash); @@ -597,7 +600,7 @@ static int htab_map_get_next_key(struct bpf_map *map, void *key, void *next_key) if (!key) goto find_first_elem; - hash = htab_map_hash(key, key_size); + hash = htab_map_hash(key, key_size, htab->hashrnd); head = select_bucket(htab, hash); @@ -824,7 +827,7 @@ static int htab_map_update_elem(struct bpf_map *map, void *key, void *value, key_size = map->key_size; - hash = htab_map_hash(key, key_size); + hash = htab_map_hash(key, key_size, htab->hashrnd); b = __select_bucket(htab, hash); head = &b->head; @@ -880,7 +883,7 @@ static int htab_lru_map_update_elem(struct bpf_map *map, void *key, void *value, key_size = map->key_size; - hash = htab_map_hash(key, key_size); + hash = htab_map_hash(key, key_size, htab->hashrnd); b = __select_bucket(htab, hash); head = &b->head; @@ -945,7 +948,7 @@ static int __htab_percpu_map_update_elem(struct bpf_map *map, void *key, key_size = map->key_size; - hash = htab_map_hash(key, key_size); + hash = htab_map_hash(key, key_size, htab->hashrnd); b = __select_bucket(htab, hash); head = &b->head; @@ -998,7 +1001,7 @@ static int __htab_lru_percpu_map_update_elem(struct bpf_map *map, void *key, key_size = map->key_size; - hash = htab_map_hash(key, key_size); + hash = htab_map_hash(key, key_size, htab->hashrnd); b = __select_bucket(htab, hash); head = &b->head; @@ -1071,7 +1074,7 @@ static int htab_map_delete_elem(struct bpf_map *map, void *key) key_size = map->key_size; - hash = htab_map_hash(key, key_size); + hash = htab_map_hash(key, key_size, htab->hashrnd); b = __select_bucket(htab, hash); head = &b->head; @@ -1103,7 +1106,7 @@ static int htab_lru_map_delete_elem(struct bpf_map *map, void *key) key_size = map->key_size; - hash = htab_map_hash(key, key_size); + hash = htab_map_hash(key, key_size, htab->hashrnd); b = __select_bucket(htab, hash); head = &b->head; From 5ab522443bd1dafa9e32d6f4b029128efda072de Mon Sep 17 00:00:00 2001 From: Anirudh Venkataramanan Date: Thu, 9 Aug 2018 06:28:53 -0700 Subject: [PATCH 0086/1762] ice: Cleanup magic number Use define for the unit size shift of the Rx LAN context descriptor base address instead of the magic number 7. Signed-off-by: Anirudh Venkataramanan Tested-by: Tony Brelinski Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h | 1 + drivers/net/ethernet/intel/ice/ice_main.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h index d23a91665b46..068dbc740b76 100644 --- a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h +++ b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h @@ -265,6 +265,7 @@ enum ice_rx_flex_desc_status_error_0_bits { struct ice_rlan_ctx { u16 head; u16 cpuid; /* bigger than needed, see above for reason */ +#define ICE_RLAN_BASE_S 7 u64 base; u16 qlen; #define ICE_RLAN_CTX_DBUF_S 7 diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 186e764a469a..7d65e0ed3588 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -3983,7 +3983,7 @@ static int ice_setup_rx_ctx(struct ice_ring *ring) /* clear the context structure first */ memset(&rlan_ctx, 0, sizeof(rlan_ctx)); - rlan_ctx.base = ring->dma >> 7; + rlan_ctx.base = ring->dma >> ICE_RLAN_BASE_S; rlan_ctx.qlen = ring->count; From f8ba7db850350319348b6d3c276f8ba19bc098ef Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Thu, 9 Aug 2018 06:28:54 -0700 Subject: [PATCH 0087/1762] ice: Report stats for allocated queues via ethtool stats It is not safe to have the string table for statistics change order or size over the lifetime of a given netdevice. This is because of the nature of the 3-step process for obtaining stats. First, user space performs a request for the size of the strings table. Second it performs a separate request for the strings themselves, after allocating space for the table. Third, it requests the stats themselves, also allocating space for the table. If the size decreased, there is potential to see garbage data or stats values. In the worst case, we could potentially see stats values become mis-aligned with their strings, so that it looks like a statistic is being reported differently than it actually is. Even worse, if the size increased, there is potential that the strings table or stats table was not allocated large enough and the stats code could access and write to memory it should not, potentially resulting in undefined behavior and system crashes. It isn't even safe if the size always changes under the RTNL lock. This is because the calls take place over multiple user space commands, so it is not possible to hold the RTNL lock for the entire duration of obtaining strings and stats. Further, not all consumers of the ethtool API are the user space ethtool program, and it is possible that one assumes the strings will not change (valid under the current contract), and thus only requests the stats values when requesting stats in a loop. Finally, it's not possible in the general case to detect when the size changes, because it is quite possible that one value which could impact the stat size increased, while another decreased. This would result in the same total number of stats, but reordering them so that stats no longer line up with the strings they belong to. Since only size changes aren't enough, we would need some sort of hash or token to determine when the strings no longer match. This would require extending the ethtool stats commands, but there is no more space in the relevant structures. The real solution to resolve this would be to add a completely new API for stats, probably over netlink. In the ice driver, the only thing impacting the stats that is not constant is the number of queues. Instead of reporting stats for each used queue, report stats for each allocated queue. We do not change the number of queues allocated for a given netdevice, as we pass this into the alloc_etherdev_mq() function to set the num_tx_queues and num_rx_queues. This resolves the potential bugs at the slight cost of displaying many queue statistics which will not be activated. Signed-off-by: Jacob Keller Signed-off-by: Anirudh Venkataramanan Tested-by: Tony Brelinski Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice.h | 7 +++ drivers/net/ethernet/intel/ice/ice_ethtool.c | 52 +++++++++++++++----- 2 files changed, 46 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index d8b5fff581e7..ed071ea75f20 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -89,6 +89,13 @@ extern const char ice_drv_ver[]; #define ice_for_each_rxq(vsi, i) \ for ((i) = 0; (i) < (vsi)->num_rxq; (i)++) +/* Macros for each allocated tx/rx ring whether used or not in a VSI */ +#define ice_for_each_alloc_txq(vsi, i) \ + for ((i) = 0; (i) < (vsi)->alloc_txq; (i)++) + +#define ice_for_each_alloc_rxq(vsi, i) \ + for ((i) = 0; (i) < (vsi)->alloc_rxq; (i)++) + struct ice_tc_info { u16 qoffset; u16 qcount; diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c index 1db304c01d10..c71a9b528d6d 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -26,7 +26,7 @@ static int ice_q_stats_len(struct net_device *netdev) { struct ice_netdev_priv *np = netdev_priv(netdev); - return ((np->vsi->num_txq + np->vsi->num_rxq) * + return ((np->vsi->alloc_txq + np->vsi->alloc_rxq) * (sizeof(struct ice_q_stats) / sizeof(u64))); } @@ -218,7 +218,7 @@ static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data) p += ETH_GSTRING_LEN; } - ice_for_each_txq(vsi, i) { + ice_for_each_alloc_txq(vsi, i) { snprintf(p, ETH_GSTRING_LEN, "tx-queue-%u.tx_packets", i); p += ETH_GSTRING_LEN; @@ -226,7 +226,7 @@ static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data) p += ETH_GSTRING_LEN; } - ice_for_each_rxq(vsi, i) { + ice_for_each_alloc_rxq(vsi, i) { snprintf(p, ETH_GSTRING_LEN, "rx-queue-%u.rx_packets", i); p += ETH_GSTRING_LEN; @@ -253,6 +253,24 @@ static int ice_get_sset_count(struct net_device *netdev, int sset) { switch (sset) { case ETH_SS_STATS: + /* The number (and order) of strings reported *must* remain + * constant for a given netdevice. This function must not + * report a different number based on run time parameters + * (such as the number of queues in use, or the setting of + * a private ethtool flag). This is due to the nature of the + * ethtool stats API. + * + * User space programs such as ethtool must make 3 separate + * ioctl requests, one for size, one for the strings, and + * finally one for the stats. Since these cross into + * user space, changes to the number or size could result in + * undefined memory access or incorrect string<->value + * correlations for statistics. + * + * Even if it appears to be safe, changes to the size or + * order of strings will suffer from race conditions and are + * not safe. + */ return ICE_ALL_STATS_LEN(netdev); default: return -EOPNOTSUPP; @@ -280,18 +298,26 @@ ice_get_ethtool_stats(struct net_device *netdev, /* populate per queue stats */ rcu_read_lock(); - ice_for_each_txq(vsi, j) { + ice_for_each_alloc_txq(vsi, j) { ring = READ_ONCE(vsi->tx_rings[j]); - if (!ring) - continue; - data[i++] = ring->stats.pkts; - data[i++] = ring->stats.bytes; + if (ring) { + data[i++] = ring->stats.pkts; + data[i++] = ring->stats.bytes; + } else { + data[i++] = 0; + data[i++] = 0; + } } - ice_for_each_rxq(vsi, j) { + ice_for_each_alloc_rxq(vsi, j) { ring = READ_ONCE(vsi->rx_rings[j]); - data[i++] = ring->stats.pkts; - data[i++] = ring->stats.bytes; + if (ring) { + data[i++] = ring->stats.pkts; + data[i++] = ring->stats.bytes; + } else { + data[i++] = 0; + data[i++] = 0; + } } rcu_read_unlock(); @@ -519,7 +545,7 @@ ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring) goto done; } - for (i = 0; i < vsi->num_txq; i++) { + for (i = 0; i < vsi->alloc_txq; i++) { /* clone ring and setup updated count */ tx_rings[i] = *vsi->tx_rings[i]; tx_rings[i].count = new_tx_cnt; @@ -551,7 +577,7 @@ process_rx: goto done; } - for (i = 0; i < vsi->num_rxq; i++) { + for (i = 0; i < vsi->alloc_rxq; i++) { /* clone ring and setup updated count */ rx_rings[i] = *vsi->rx_rings[i]; rx_rings[i].count = new_rx_cnt; From b29bc220e2c7bd494a4605defcd93b18d5a8cf86 Mon Sep 17 00:00:00 2001 From: Preethi Banala Date: Thu, 9 Aug 2018 06:28:55 -0700 Subject: [PATCH 0088/1762] ice: Clean control queues only when they are initialized Clean control queues only when they are initialized. One of the ways to validate if the basic initialization is done is by checking value of cq->sq.head and cq->rq.head variables that specify the register address. This patch adds a check to avoid NULL pointer dereference crash when tried to shutdown uninitialized control queue. Signed-off-by: Preethi Banala Signed-off-by: Anirudh Venkataramanan Tested-by: Tony Brelinski Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_controlq.c | 24 ++++++++++++------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_controlq.c b/drivers/net/ethernet/intel/ice/ice_controlq.c index 7c511f144ed6..c064416080e7 100644 --- a/drivers/net/ethernet/intel/ice/ice_controlq.c +++ b/drivers/net/ethernet/intel/ice/ice_controlq.c @@ -597,10 +597,14 @@ static enum ice_status ice_init_check_adminq(struct ice_hw *hw) return 0; init_ctrlq_free_rq: - ice_shutdown_rq(hw, cq); - ice_shutdown_sq(hw, cq); - mutex_destroy(&cq->sq_lock); - mutex_destroy(&cq->rq_lock); + if (cq->rq.head) { + ice_shutdown_rq(hw, cq); + mutex_destroy(&cq->rq_lock); + } + if (cq->sq.head) { + ice_shutdown_sq(hw, cq); + mutex_destroy(&cq->sq_lock); + } return status; } @@ -706,10 +710,14 @@ static void ice_shutdown_ctrlq(struct ice_hw *hw, enum ice_ctl_q q_type) return; } - ice_shutdown_sq(hw, cq); - ice_shutdown_rq(hw, cq); - mutex_destroy(&cq->sq_lock); - mutex_destroy(&cq->rq_lock); + if (cq->sq.head) { + ice_shutdown_sq(hw, cq); + mutex_destroy(&cq->sq_lock); + } + if (cq->rq.head) { + ice_shutdown_rq(hw, cq); + mutex_destroy(&cq->rq_lock); + } } /** From 3d6b640efcc1b07709b42dd2e9609401c6f88633 Mon Sep 17 00:00:00 2001 From: Anirudh Venkataramanan Date: Thu, 9 Aug 2018 06:28:56 -0700 Subject: [PATCH 0089/1762] ice: Fix bugs in control queue processing This patch is a consolidation of multiple bug fixes for control queue processing. 1) In ice_clean_adminq_subtask() remove unnecessary reads/writes to registers. The bits PFINT_FW_CTL, PFINT_MBX_CTL and PFINT_SB_CTL are not set when an interrupt arrives, which means that clearing them again can be omitted. 2) Get an accurate value in "pending" by re-reading the control queue head register from the hardware. 3) Fix a corner case involving lost control queue messages by checking for new control messages (using ice_ctrlq_pending) before exiting the cleanup routine. Signed-off-by: Anirudh Venkataramanan Tested-by: Tony Brelinski Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_controlq.c | 5 +++- drivers/net/ethernet/intel/ice/ice_main.c | 26 ++++++++++++++++--- 2 files changed, 26 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_controlq.c b/drivers/net/ethernet/intel/ice/ice_controlq.c index c064416080e7..62be72fdc8f3 100644 --- a/drivers/net/ethernet/intel/ice/ice_controlq.c +++ b/drivers/net/ethernet/intel/ice/ice_controlq.c @@ -1065,8 +1065,11 @@ ice_clean_rq_elem(struct ice_hw *hw, struct ice_ctl_q_info *cq, clean_rq_elem_out: /* Set pending if needed, unlock and return */ - if (pending) + if (pending) { + /* re-read HW head to calculate actual pending messages */ + ntu = (u16)(rd32(hw, cq->rq.head) & cq->rq.head_mask); *pending = (u16)((ntc > ntu ? cq->rq.count : 0) + (ntu - ntc)); + } clean_rq_elem_err: mutex_unlock(&cq->rq_lock); diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 7d65e0ed3588..f3ba4f76b6cb 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -916,6 +916,21 @@ static int __ice_clean_ctrlq(struct ice_pf *pf, enum ice_ctl_q q_type) return pending && (i == ICE_DFLT_IRQ_WORK); } +/** + * ice_ctrlq_pending - check if there is a difference between ntc and ntu + * @hw: pointer to hardware info + * @cq: control queue information + * + * returns true if there are pending messages in a queue, false if there aren't + */ +static bool ice_ctrlq_pending(struct ice_hw *hw, struct ice_ctl_q_info *cq) +{ + u16 ntu; + + ntu = (u16)(rd32(hw, cq->rq.head) & cq->rq.head_mask); + return cq->rq.next_to_clean != ntu; +} + /** * ice_clean_adminq_subtask - clean the AdminQ rings * @pf: board private structure @@ -923,7 +938,6 @@ static int __ice_clean_ctrlq(struct ice_pf *pf, enum ice_ctl_q q_type) static void ice_clean_adminq_subtask(struct ice_pf *pf) { struct ice_hw *hw = &pf->hw; - u32 val; if (!test_bit(__ICE_ADMINQ_EVENT_PENDING, pf->state)) return; @@ -933,9 +947,13 @@ static void ice_clean_adminq_subtask(struct ice_pf *pf) clear_bit(__ICE_ADMINQ_EVENT_PENDING, pf->state); - /* re-enable Admin queue interrupt causes */ - val = rd32(hw, PFINT_FW_CTL); - wr32(hw, PFINT_FW_CTL, (val | PFINT_FW_CTL_CAUSE_ENA_M)); + /* There might be a situation where new messages arrive to a control + * queue between processing the last message and clearing the + * EVENT_PENDING bit. So before exiting, check queue head again (using + * ice_ctrlq_pending) and process new messages if any. + */ + if (ice_ctrlq_pending(hw, &hw->adminq)) + __ice_clean_ctrlq(pf, ICE_CTL_Q_ADMIN); ice_flush(hw); } From 1eb43fc754485d772b1165118a8fb80c385f0492 Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Thu, 9 Aug 2018 06:28:57 -0700 Subject: [PATCH 0090/1762] ice: Use order_base_2 to calculate higher power of 2 Currently, we use a combination of ilog2 and is_power_of_2() to calculate the next power of 2 for the qcount. This appears to be causing a warning on some combinations of GCC and the Linux kernel: MODPOST 1 modules WARNING: "____ilog2_NaN" [ice.ko] undefined! This appears to because because GCC realizes that qcount could be zero in some circumstances and thus attempts to link against the intentionally undefined ___ilog2_NaN function. The order_base_2 function is intentionally defined to return 0 when passed 0 as an argument, and thus will be safe to use here. This not only fixes the warning but makes the resulting code slightly cleaner, and is really what we should have used originally. Also update the comment to make it more clear that we are rounding up, not just incrementing the ilog2 of qcount unconditionally. Signed-off-by: Jacob Keller Signed-off-by: Anirudh Venkataramanan Tested-by: Tony Brelinski Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_main.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index f3ba4f76b6cb..3eff1d2d1543 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -1313,11 +1313,8 @@ static void ice_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt) qcount = numq_tc; } - /* find higher power-of-2 of qcount */ - pow = ilog2(qcount); - - if (!is_power_of_2(qcount)) - pow++; + /* find the (rounded up) power-of-2 of qcount */ + pow = order_base_2(qcount); for (i = 0; i < ICE_MAX_TRAFFIC_CLASS; i++) { if (!(vsi->tc_cfg.ena_tc & BIT(i))) { From 5d8778d803e21f235e9bc727b5bd619f02abb88b Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Thu, 9 Aug 2018 06:28:58 -0700 Subject: [PATCH 0091/1762] ice: Set VLAN flags correctly In the struct ice_aqc_vsi_props the field port_vlan_flags is an overloaded term because it is used for both port VLANs (PVLANs) and regular VLANs. This is an issue and is very confusing especially when dealing with VFs because normal VLANs and port VLANs are not the same. To fix this the field was renamed to vlan_flags and all of the #define's labeled *_PVLAN_* were renamed to *_VLAN_* if they are not specific to port VLANs. Also in ice_vsi_manage_vlan_stripping, set the ICE_AQ_VSI_VLAN_MODE_ALL bit to allow the driver to add a VLAN tag to all packets it sends. Signed-off-by: Brett Creeley Signed-off-by: Anirudh Venkataramanan Tested-by: Tony Brelinski Signed-off-by: Jeff Kirsher --- .../net/ethernet/intel/ice/ice_adminq_cmd.h | 24 +++++++------- drivers/net/ethernet/intel/ice/ice_main.c | 31 +++++++++++-------- 2 files changed, 30 insertions(+), 25 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h index 6d3e11659ba5..a0614f472658 100644 --- a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h +++ b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h @@ -329,19 +329,19 @@ struct ice_aqc_vsi_props { /* VLAN section */ __le16 pvid; /* VLANS include priority bits */ u8 pvlan_reserved[2]; - u8 port_vlan_flags; -#define ICE_AQ_VSI_PVLAN_MODE_S 0 -#define ICE_AQ_VSI_PVLAN_MODE_M (0x3 << ICE_AQ_VSI_PVLAN_MODE_S) -#define ICE_AQ_VSI_PVLAN_MODE_UNTAGGED 0x1 -#define ICE_AQ_VSI_PVLAN_MODE_TAGGED 0x2 -#define ICE_AQ_VSI_PVLAN_MODE_ALL 0x3 + u8 vlan_flags; +#define ICE_AQ_VSI_VLAN_MODE_S 0 +#define ICE_AQ_VSI_VLAN_MODE_M (0x3 << ICE_AQ_VSI_VLAN_MODE_S) +#define ICE_AQ_VSI_VLAN_MODE_UNTAGGED 0x1 +#define ICE_AQ_VSI_VLAN_MODE_TAGGED 0x2 +#define ICE_AQ_VSI_VLAN_MODE_ALL 0x3 #define ICE_AQ_VSI_PVLAN_INSERT_PVID BIT(2) -#define ICE_AQ_VSI_PVLAN_EMOD_S 3 -#define ICE_AQ_VSI_PVLAN_EMOD_M (0x3 << ICE_AQ_VSI_PVLAN_EMOD_S) -#define ICE_AQ_VSI_PVLAN_EMOD_STR_BOTH (0x0 << ICE_AQ_VSI_PVLAN_EMOD_S) -#define ICE_AQ_VSI_PVLAN_EMOD_STR_UP (0x1 << ICE_AQ_VSI_PVLAN_EMOD_S) -#define ICE_AQ_VSI_PVLAN_EMOD_STR (0x2 << ICE_AQ_VSI_PVLAN_EMOD_S) -#define ICE_AQ_VSI_PVLAN_EMOD_NOTHING (0x3 << ICE_AQ_VSI_PVLAN_EMOD_S) +#define ICE_AQ_VSI_VLAN_EMOD_S 3 +#define ICE_AQ_VSI_VLAN_EMOD_M (0x3 << ICE_AQ_VSI_VLAN_EMOD_S) +#define ICE_AQ_VSI_VLAN_EMOD_STR_BOTH (0x0 << ICE_AQ_VSI_VLAN_EMOD_S) +#define ICE_AQ_VSI_VLAN_EMOD_STR_UP (0x1 << ICE_AQ_VSI_VLAN_EMOD_S) +#define ICE_AQ_VSI_VLAN_EMOD_STR (0x2 << ICE_AQ_VSI_VLAN_EMOD_S) +#define ICE_AQ_VSI_VLAN_EMOD_NOTHING (0x3 << ICE_AQ_VSI_VLAN_EMOD_S) u8 pvlan_reserved2[3]; /* ingress egress up sections */ __le32 ingress_table; /* bitmap, 3 bits per up */ diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 3eff1d2d1543..68003fad33d1 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -1367,13 +1367,15 @@ static void ice_set_dflt_vsi_ctx(struct ice_vsi_ctx *ctxt) ctxt->info.sw_flags = ICE_AQ_VSI_SW_FLAG_SRC_PRUNE; /* Traffic from VSI can be sent to LAN */ ctxt->info.sw_flags2 = ICE_AQ_VSI_SW_FLAG_LAN_ENA; - /* By default bits 3 and 4 in port_vlan_flags are 0's which results in - * legacy behavior (show VLAN, DEI, and UP) in descriptor. Also, allow - * all packets untagged/tagged. + + /* By default bits 3 and 4 in vlan_flags are 0's which results in legacy + * behavior (show VLAN, DEI, and UP) in descriptor. Also, allow all + * packets untagged/tagged. */ - ctxt->info.port_vlan_flags = ((ICE_AQ_VSI_PVLAN_MODE_ALL & - ICE_AQ_VSI_PVLAN_MODE_M) >> - ICE_AQ_VSI_PVLAN_MODE_S); + ctxt->info.vlan_flags = ((ICE_AQ_VSI_VLAN_MODE_ALL & + ICE_AQ_VSI_VLAN_MODE_M) >> + ICE_AQ_VSI_VLAN_MODE_S); + /* Have 1:1 UP mapping for both ingress/egress tables */ table |= ICE_UP_TABLE_TRANSLATE(0, 0); table |= ICE_UP_TABLE_TRANSLATE(1, 1); @@ -3732,10 +3734,10 @@ static int ice_vsi_manage_vlan_insertion(struct ice_vsi *vsi) enum ice_status status; /* Here we are configuring the VSI to let the driver add VLAN tags by - * setting port_vlan_flags to ICE_AQ_VSI_PVLAN_MODE_ALL. The actual VLAN - * tag insertion happens in the Tx hot path, in ice_tx_map. + * setting vlan_flags to ICE_AQ_VSI_VLAN_MODE_ALL. The actual VLAN tag + * insertion happens in the Tx hot path, in ice_tx_map. */ - ctxt.info.port_vlan_flags = ICE_AQ_VSI_PVLAN_MODE_ALL; + ctxt.info.vlan_flags = ICE_AQ_VSI_VLAN_MODE_ALL; ctxt.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID); ctxt.vsi_num = vsi->vsi_num; @@ -3747,7 +3749,7 @@ static int ice_vsi_manage_vlan_insertion(struct ice_vsi *vsi) return -EIO; } - vsi->info.port_vlan_flags = ctxt.info.port_vlan_flags; + vsi->info.vlan_flags = ctxt.info.vlan_flags; return 0; } @@ -3769,12 +3771,15 @@ static int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena) */ if (ena) { /* Strip VLAN tag from Rx packet and put it in the desc */ - ctxt.info.port_vlan_flags = ICE_AQ_VSI_PVLAN_EMOD_STR_BOTH; + ctxt.info.vlan_flags = ICE_AQ_VSI_VLAN_EMOD_STR_BOTH; } else { /* Disable stripping. Leave tag in packet */ - ctxt.info.port_vlan_flags = ICE_AQ_VSI_PVLAN_EMOD_NOTHING; + ctxt.info.vlan_flags = ICE_AQ_VSI_VLAN_EMOD_NOTHING; } + /* Allow all packets untagged/tagged */ + ctxt.info.vlan_flags |= ICE_AQ_VSI_VLAN_MODE_ALL; + ctxt.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID); ctxt.vsi_num = vsi->vsi_num; @@ -3785,7 +3790,7 @@ static int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena) return -EIO; } - vsi->info.port_vlan_flags = ctxt.info.port_vlan_flags; + vsi->info.vlan_flags = ctxt.info.vlan_flags; return 0; } From 785e76d7a2051a9e28b9134d5388a45b16f5eb72 Mon Sep 17 00:00:00 2001 From: Quentin Monnet Date: Thu, 23 Aug 2018 17:46:25 +0100 Subject: [PATCH 0092/1762] tools: bpftool: return from do_event_pipe() on bad arguments When command line parsing fails in the while loop in do_event_pipe() because the number of arguments is incorrect or because the keyword is unknown, an error message is displayed, but bpftool remains stuck in the loop. Make sure we exit the loop upon failure. Fixes: f412eed9dfde ("tools: bpftool: add simple perf event output reader") Signed-off-by: Quentin Monnet Reviewed-by: Jakub Kicinski Signed-off-by: Daniel Borkmann --- tools/bpf/bpftool/map_perf_ring.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/bpf/bpftool/map_perf_ring.c b/tools/bpf/bpftool/map_perf_ring.c index 1832100d1b27..6d41323be291 100644 --- a/tools/bpf/bpftool/map_perf_ring.c +++ b/tools/bpf/bpftool/map_perf_ring.c @@ -194,8 +194,10 @@ int do_event_pipe(int argc, char **argv) } while (argc) { - if (argc < 2) + if (argc < 2) { BAD_ARG(); + goto err_close_map; + } if (is_prefix(*argv, "cpu")) { char *endptr; @@ -221,6 +223,7 @@ int do_event_pipe(int argc, char **argv) NEXT_ARG(); } else { BAD_ARG(); + goto err_close_map; } do_all = false; From 444c8263151afc06c01ac8ddcd1204624a7d4bb3 Mon Sep 17 00:00:00 2001 From: Yue Haibing Date: Tue, 21 Aug 2018 14:03:04 +0000 Subject: [PATCH 0093/1762] netfilter: conntrack: remove duplicated include from nf_conntrack_proto_udp.c Remove duplicated include. Fixes: c779e849608a ("netfilter: conntrack: remove get_timeout() indirection") Signed-off-by: Yue Haibing Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_proto_udp.c | 1 - 1 file changed, 1 deletion(-) diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c index 7a1b8988a931..9272a2c525a8 100644 --- a/net/netfilter/nf_conntrack_proto_udp.c +++ b/net/netfilter/nf_conntrack_proto_udp.c @@ -393,4 +393,3 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite6 = }; EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_udplite6); #endif -#include From 3bcd7fa37f33cda8c5639a908e9eb42d856e5d8b Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Thu, 9 Aug 2018 06:28:59 -0700 Subject: [PATCH 0094/1762] ice: Update to interrupts enabled in OICR Remove the following interrupt causes that are not applicable or not handled: - PFINT_OICR_HLP_RDY_M - PFINT_OICR_CPM_RDY_M - PFINT_OICR_GPIO_M - PFINT_OICR_STORM_DETECT_M Add the following interrupt cause that's actually handled in ice_misc_intr: - PFINT_OICR_PE_CRITERR_M Signed-off-by: Bruce Allan Signed-off-by: Anirudh Venkataramanan Tested-by: Tony Brelinski Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_hw_autogen.h | 8 -------- drivers/net/ethernet/intel/ice/ice_main.c | 9 +++------ 2 files changed, 3 insertions(+), 14 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_hw_autogen.h b/drivers/net/ethernet/intel/ice/ice_hw_autogen.h index 499904874b3f..6076fc87df9d 100644 --- a/drivers/net/ethernet/intel/ice/ice_hw_autogen.h +++ b/drivers/net/ethernet/intel/ice/ice_hw_autogen.h @@ -121,10 +121,6 @@ #define PFINT_FW_CTL_CAUSE_ENA_S 30 #define PFINT_FW_CTL_CAUSE_ENA_M BIT(PFINT_FW_CTL_CAUSE_ENA_S) #define PFINT_OICR 0x0016CA00 -#define PFINT_OICR_HLP_RDY_S 14 -#define PFINT_OICR_HLP_RDY_M BIT(PFINT_OICR_HLP_RDY_S) -#define PFINT_OICR_CPM_RDY_S 15 -#define PFINT_OICR_CPM_RDY_M BIT(PFINT_OICR_CPM_RDY_S) #define PFINT_OICR_ECC_ERR_S 16 #define PFINT_OICR_ECC_ERR_M BIT(PFINT_OICR_ECC_ERR_S) #define PFINT_OICR_MAL_DETECT_S 19 @@ -133,10 +129,6 @@ #define PFINT_OICR_GRST_M BIT(PFINT_OICR_GRST_S) #define PFINT_OICR_PCI_EXCEPTION_S 21 #define PFINT_OICR_PCI_EXCEPTION_M BIT(PFINT_OICR_PCI_EXCEPTION_S) -#define PFINT_OICR_GPIO_S 22 -#define PFINT_OICR_GPIO_M BIT(PFINT_OICR_GPIO_S) -#define PFINT_OICR_STORM_DETECT_S 24 -#define PFINT_OICR_STORM_DETECT_M BIT(PFINT_OICR_STORM_DETECT_S) #define PFINT_OICR_HMC_ERR_S 26 #define PFINT_OICR_HMC_ERR_M BIT(PFINT_OICR_HMC_ERR_S) #define PFINT_OICR_PE_CRITERR_S 28 diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 68003fad33d1..34be94a30a60 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -1704,15 +1704,12 @@ static void ice_ena_misc_vector(struct ice_pf *pf) wr32(hw, PFINT_OICR_ENA, 0); /* disable all */ rd32(hw, PFINT_OICR); /* read to clear */ - val = (PFINT_OICR_HLP_RDY_M | - PFINT_OICR_CPM_RDY_M | - PFINT_OICR_ECC_ERR_M | + val = (PFINT_OICR_ECC_ERR_M | PFINT_OICR_MAL_DETECT_M | PFINT_OICR_GRST_M | PFINT_OICR_PCI_EXCEPTION_M | - PFINT_OICR_GPIO_M | - PFINT_OICR_STORM_DETECT_M | - PFINT_OICR_HMC_ERR_M); + PFINT_OICR_HMC_ERR_M | + PFINT_OICR_PE_CRITERR_M); wr32(hw, PFINT_OICR_ENA, val); From c1dc2912059901f97345d9e10c96b841215fdc0f Mon Sep 17 00:00:00 2001 From: Martin Willi Date: Wed, 22 Aug 2018 10:27:17 +0200 Subject: [PATCH 0095/1762] netfilter: xt_cluster: add dependency on conntrack module The cluster match requires conntrack for matching packets. If the netns does not have conntrack hooks registered, the match does not work at all. Implicitly load the conntrack hook for the family, exactly as many other extensions do. This ensures that the match works even if the hooks have not been registered by other means. Signed-off-by: Martin Willi Acked-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/netfilter/xt_cluster.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/net/netfilter/xt_cluster.c b/net/netfilter/xt_cluster.c index dfbdbb2fc0ed..51d0c257e7a5 100644 --- a/net/netfilter/xt_cluster.c +++ b/net/netfilter/xt_cluster.c @@ -125,6 +125,7 @@ xt_cluster_mt(const struct sk_buff *skb, struct xt_action_param *par) static int xt_cluster_mt_checkentry(const struct xt_mtchk_param *par) { struct xt_cluster_match_info *info = par->matchinfo; + int ret; if (info->total_nodes > XT_CLUSTER_NODES_MAX) { pr_info_ratelimited("you have exceeded the maximum number of cluster nodes (%u > %u)\n", @@ -135,7 +136,17 @@ static int xt_cluster_mt_checkentry(const struct xt_mtchk_param *par) pr_info_ratelimited("node mask cannot exceed total number of nodes\n"); return -EDOM; } - return 0; + + ret = nf_ct_netns_get(par->net, par->family); + if (ret < 0) + pr_info_ratelimited("cannot load conntrack support for proto=%u\n", + par->family); + return ret; +} + +static void xt_cluster_mt_destroy(const struct xt_mtdtor_param *par) +{ + nf_ct_netns_put(par->net, par->family); } static struct xt_match xt_cluster_match __read_mostly = { @@ -144,6 +155,7 @@ static struct xt_match xt_cluster_match __read_mostly = { .match = xt_cluster_mt, .checkentry = xt_cluster_mt_checkentry, .matchsize = sizeof(struct xt_cluster_match_info), + .destroy = xt_cluster_mt_destroy, .me = THIS_MODULE, }; From c7f2c42b80ed6009f44e355aefc1e40db9485a9d Mon Sep 17 00:00:00 2001 From: Anirudh Venkataramanan Date: Thu, 9 Aug 2018 06:29:00 -0700 Subject: [PATCH 0096/1762] ice: Fix a few null pointer dereference issues 1) When ice_ena_msix_range() fails to reserve vectors, a devm_kfree() warning was seen in the error flow path. So check pf->irq_tracker before use in ice_clear_interrupt_scheme(). 2) In ice_vsi_cfg(), check vsi->netdev before use. 3) In ice_get_link_status, check link_up before use. Signed-off-by: Anirudh Venkataramanan Tested-by: Tony Brelinski Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_common.c | 2 +- drivers/net/ethernet/intel/ice/ice_main.c | 17 ++++++++++------- 2 files changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index d5300b606d5a..ebd701ac9428 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -1483,7 +1483,7 @@ enum ice_status ice_get_link_status(struct ice_port_info *pi, bool *link_up) struct ice_phy_info *phy_info; enum ice_status status = 0; - if (!pi) + if (!pi || !link_up) return ICE_ERR_PARAM; phy_info = &pi->phy; diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 34be94a30a60..d5d83c8848f8 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -3257,8 +3257,10 @@ static void ice_clear_interrupt_scheme(struct ice_pf *pf) if (test_bit(ICE_FLAG_MSIX_ENA, pf->flags)) ice_dis_msix(pf); - devm_kfree(&pf->pdev->dev, pf->irq_tracker); - pf->irq_tracker = NULL; + if (pf->irq_tracker) { + devm_kfree(&pf->pdev->dev, pf->irq_tracker); + pf->irq_tracker = NULL; + } } /** @@ -4112,11 +4114,12 @@ static int ice_vsi_cfg(struct ice_vsi *vsi) { int err; - ice_set_rx_mode(vsi->netdev); - - err = ice_restore_vlan(vsi); - if (err) - return err; + if (vsi->netdev) { + ice_set_rx_mode(vsi->netdev); + err = ice_restore_vlan(vsi); + if (err) + return err; + } err = ice_vsi_cfg_txqs(vsi); if (!err) From dab0588fb616c1774bbf108eab1749dda4ac6942 Mon Sep 17 00:00:00 2001 From: Jesse Brandeburg Date: Thu, 9 Aug 2018 06:29:01 -0700 Subject: [PATCH 0097/1762] ice: Fix potential return of uninitialized value In ice_vsi_setup_[tx|rx]_rings, err is uninitialized which can result in a garbage value return to the caller. Fix that. Signed-off-by: Jesse Brandeburg Signed-off-by: Anirudh Venkataramanan Tested-by: Tony Brelinski Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index d5d83c8848f8..e23156515186 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -4885,7 +4885,7 @@ int ice_down(struct ice_vsi *vsi) */ static int ice_vsi_setup_tx_rings(struct ice_vsi *vsi) { - int i, err; + int i, err = 0; if (!vsi->num_txq) { dev_err(&vsi->back->pdev->dev, "VSI %d has 0 Tx queues\n", @@ -4910,7 +4910,7 @@ static int ice_vsi_setup_tx_rings(struct ice_vsi *vsi) */ static int ice_vsi_setup_rx_rings(struct ice_vsi *vsi) { - int i, err; + int i, err = 0; if (!vsi->num_rxq) { dev_err(&vsi->back->pdev->dev, "VSI %d has 0 Rx queues\n", From 43f8b22450f0a721915f1d2c7e3db6dd9573e76b Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Thu, 9 Aug 2018 06:29:02 -0700 Subject: [PATCH 0098/1762] ice: Change struct members from bool to u8 Recent versions of checkpatch have a new warning based on a documented preference of Linus to not use bool in structures due to wasted space and the size of bool is implementation dependent. For more information, see the email thread at https://lkml.org/lkml/2017/11/21/384. Signed-off-by: Bruce Allan Signed-off-by: Anirudh Venkataramanan Tested-by: Tony Brelinski Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice.h | 8 ++++---- drivers/net/ethernet/intel/ice/ice_switch.h | 6 +++--- drivers/net/ethernet/intel/ice/ice_txrx.h | 2 +- drivers/net/ethernet/intel/ice/ice_type.h | 16 ++++++++-------- 4 files changed, 16 insertions(+), 16 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index ed071ea75f20..868f4a1d0f72 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -196,9 +196,9 @@ struct ice_vsi { struct list_head tmp_sync_list; /* MAC filters to be synced */ struct list_head tmp_unsync_list; /* MAC filters to be unsynced */ - bool irqs_ready; - bool current_isup; /* Sync 'link up' logging */ - bool stat_offsets_loaded; + u8 irqs_ready; + u8 current_isup; /* Sync 'link up' logging */ + u8 stat_offsets_loaded; /* queue information */ u8 tx_mapping_mode; /* ICE_MAP_MODE_[CONTIG|SCATTER] */ @@ -269,7 +269,7 @@ struct ice_pf { struct ice_hw_port_stats stats; struct ice_hw_port_stats stats_prev; struct ice_hw hw; - bool stat_prev_loaded; /* has previous stats been loaded */ + u8 stat_prev_loaded; /* has previous stats been loaded */ char int_name[ICE_INT_NAME_STR_LEN]; }; diff --git a/drivers/net/ethernet/intel/ice/ice_switch.h b/drivers/net/ethernet/intel/ice/ice_switch.h index 6f4a0d159dbf..9b8ec128ee31 100644 --- a/drivers/net/ethernet/intel/ice/ice_switch.h +++ b/drivers/net/ethernet/intel/ice/ice_switch.h @@ -17,7 +17,7 @@ struct ice_vsi_ctx { u16 vsis_unallocated; u16 flags; struct ice_aqc_vsi_props info; - bool alloc_from_pool; + u8 alloc_from_pool; }; enum ice_sw_fwd_act_type { @@ -94,8 +94,8 @@ struct ice_fltr_info { u8 qgrp_size; /* Rule creations populate these indicators basing on the switch type */ - bool lb_en; /* Indicate if packet can be looped back */ - bool lan_en; /* Indicate if packet can be forwarded to the uplink */ + u8 lb_en; /* Indicate if packet can be looped back */ + u8 lan_en; /* Indicate if packet can be forwarded to the uplink */ }; /* Bookkeeping structure to hold bitmap of VSIs corresponding to VSI list id */ diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.h b/drivers/net/ethernet/intel/ice/ice_txrx.h index 567067b650c4..31bc998fe200 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.h +++ b/drivers/net/ethernet/intel/ice/ice_txrx.h @@ -143,7 +143,7 @@ struct ice_ring { u16 next_to_use; u16 next_to_clean; - bool ring_active; /* is ring online or not */ + u8 ring_active; /* is ring online or not */ /* stats structs */ struct ice_q_stats stats; diff --git a/drivers/net/ethernet/intel/ice/ice_type.h b/drivers/net/ethernet/intel/ice/ice_type.h index 99c8a9a71b5e..97c366e0ca59 100644 --- a/drivers/net/ethernet/intel/ice/ice_type.h +++ b/drivers/net/ethernet/intel/ice/ice_type.h @@ -83,7 +83,7 @@ struct ice_link_status { u64 phy_type_low; u16 max_frame_size; u16 link_speed; - bool lse_ena; /* Link Status Event notification */ + u8 lse_ena; /* Link Status Event notification */ u8 link_info; u8 an_info; u8 ext_info; @@ -101,7 +101,7 @@ struct ice_phy_info { struct ice_link_status link_info_old; u64 phy_type_low; enum ice_media_type media_type; - bool get_link_info; + u8 get_link_info; }; /* Common HW capabilities for SW use */ @@ -167,7 +167,7 @@ struct ice_nvm_info { u32 oem_ver; /* OEM version info */ u16 sr_words; /* Shadow RAM size in words */ u16 ver; /* NVM package version */ - bool blank_nvm_mode; /* is NVM empty (no FW present) */ + u8 blank_nvm_mode; /* is NVM empty (no FW present) */ }; /* Max number of port to queue branches w.r.t topology */ @@ -181,7 +181,7 @@ struct ice_sched_node { struct ice_aqc_txsched_elem_data info; u32 agg_id; /* aggregator group id */ u16 vsi_id; - bool in_use; /* suspended or in use */ + u8 in_use; /* suspended or in use */ u8 tx_sched_layer; /* Logical Layer (1-9) */ u8 num_children; u8 tc_num; @@ -218,7 +218,7 @@ struct ice_sched_vsi_info { struct ice_sched_tx_policy { u16 max_num_vsis; u8 max_num_lan_qs_per_tc[ICE_MAX_TRAFFIC_CLASS]; - bool rdma_ena; + u8 rdma_ena; }; struct ice_port_info { @@ -243,7 +243,7 @@ struct ice_port_info { struct list_head agg_list; /* lists all aggregator */ u8 lport; #define ICE_LPORT_MASK 0xff - bool is_vf; + u8 is_vf; }; struct ice_switch_info { @@ -287,7 +287,7 @@ struct ice_hw { u8 max_cgds; u8 sw_entry_point_layer; - bool evb_veb; /* true for VEB, false for VEPA */ + u8 evb_veb; /* true for VEB, false for VEPA */ struct ice_bus_info bus; struct ice_nvm_info nvm; struct ice_hw_dev_caps dev_caps; /* device capabilities */ @@ -318,7 +318,7 @@ struct ice_hw { u8 itr_gran_100; u8 itr_gran_50; u8 itr_gran_25; - bool ucast_shared; /* true if VSIs can share unicast addr */ + u8 ucast_shared; /* true if VSIs can share unicast addr */ }; From 3968540ba61e9a19a0c4bda733db70952708d264 Mon Sep 17 00:00:00 2001 From: Anirudh Venkataramanan Date: Thu, 9 Aug 2018 06:29:03 -0700 Subject: [PATCH 0099/1762] ice: Trivial formatting fixes 1) Add missing "\n" when printing link event error message. 2) Update dev_err statement in probe. 3) Add function description for ice_clear_pf_cfg. 4) Fix coding style for ice_acquire_nvm. 5) netdev->mtu is unsigned so use %u. Signed-off-by: Anirudh Venkataramanan Tested-by: Tony Brelinski Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_common.c | 3 +++ drivers/net/ethernet/intel/ice/ice_main.c | 6 +++--- drivers/net/ethernet/intel/ice/ice_nvm.c | 5 ++--- 3 files changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index ebd701ac9428..661beea6af79 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -45,6 +45,9 @@ static enum ice_status ice_set_mac_type(struct ice_hw *hw) /** * ice_clear_pf_cfg - Clear PF configuration * @hw: pointer to the hardware structure + * + * Clears any existing PF configuration (VSIs, VSI lists, switch rules, port + * configuration, flow director filters, etc.). */ enum ice_status ice_clear_pf_cfg(struct ice_hw *hw) { diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index e23156515186..f1e80eed2fd6 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -901,7 +901,7 @@ static int __ice_clean_ctrlq(struct ice_pf *pf, enum ice_ctl_q q_type) case ice_aqc_opc_get_link_status: if (ice_handle_link_event(pf)) dev_err(&pf->pdev->dev, - "Could not handle link event"); + "Could not handle link event\n"); break; default: dev_dbg(&pf->pdev->dev, @@ -3284,7 +3284,7 @@ static int ice_probe(struct pci_dev *pdev, err = pcim_iomap_regions(pdev, BIT(ICE_BAR0), pci_name(pdev)); if (err) { - dev_err(&pdev->dev, "I/O map error %d\n", err); + dev_err(&pdev->dev, "BAR0 I/O map error %d\n", err); return err; } @@ -5252,7 +5252,7 @@ static int ice_change_mtu(struct net_device *netdev, int new_mtu) u8 count = 0; if (new_mtu == netdev->mtu) { - netdev_warn(netdev, "mtu is already %d\n", netdev->mtu); + netdev_warn(netdev, "mtu is already %u\n", netdev->mtu); return 0; } diff --git a/drivers/net/ethernet/intel/ice/ice_nvm.c b/drivers/net/ethernet/intel/ice/ice_nvm.c index 92da0a626ce0..295a8cd87fc1 100644 --- a/drivers/net/ethernet/intel/ice/ice_nvm.c +++ b/drivers/net/ethernet/intel/ice/ice_nvm.c @@ -131,9 +131,8 @@ ice_read_sr_word_aq(struct ice_hw *hw, u16 offset, u16 *data) * * This function will request NVM ownership. */ -static enum -ice_status ice_acquire_nvm(struct ice_hw *hw, - enum ice_aq_res_access_type access) +static enum ice_status +ice_acquire_nvm(struct ice_hw *hw, enum ice_aq_res_access_type access) { if (hw->nvm.blank_nvm_mode) return 0; From 10568f6c5761db24249c610c94d6e44d5505a0ba Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Wed, 22 Aug 2018 11:33:27 +0200 Subject: [PATCH 0100/1762] netfilter: xt_checksum: ignore gso skbs Satish Patel reports a skb_warn_bad_offload() splat caused by -j CHECKSUM rules: -A POSTROUTING -p tcp -m tcp --sport 80 -j CHECKSUM The CHECKSUM target has never worked with GSO skbs, and the above rule makes no sense as kernel will handle checksum updates on transmit. Unfortunately, there are 3rd party tools that install such rules, so we cannot reject this from the config plane without potential breakage. Amend Kconfig text to clarify that the CHECKSUM target is only useful in virtualized environments, where old dhcp clients that use AF_PACKET used to discard UDP packets with a 'bad' header checksum and add a one-time warning in case such rule isn't restricted to UDP. v2: check IP6T_F_PROTO flag before cmp (Michal Kubecek) Reported-by: Satish Patel Reported-by: Markos Chandras Reported-by: Michal Kubecek Signed-off-by: Florian Westphal Reviewed-by: Michal Kubecek Signed-off-by: Pablo Neira Ayuso --- net/netfilter/Kconfig | 12 ++++++------ net/netfilter/xt_CHECKSUM.c | 22 +++++++++++++++++++++- 2 files changed, 27 insertions(+), 7 deletions(-) diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig index 71709c104081..f61c306de1d0 100644 --- a/net/netfilter/Kconfig +++ b/net/netfilter/Kconfig @@ -771,13 +771,13 @@ config NETFILTER_XT_TARGET_CHECKSUM depends on NETFILTER_ADVANCED ---help--- This option adds a `CHECKSUM' target, which can be used in the iptables mangle - table. + table to work around buggy DHCP clients in virtualized environments. - You can use this target to compute and fill in the checksum in - a packet that lacks a checksum. This is particularly useful, - if you need to work around old applications such as dhcp clients, - that do not work well with checksum offloads, but don't want to disable - checksum offload in your device. + Some old DHCP clients drop packets because they are not aware + that the checksum would normally be offloaded to hardware and + thus should be considered valid. + This target can be used to fill in the checksum using iptables + when such packets are sent via a virtual network device. To compile it as a module, choose M here. If unsure, say N. diff --git a/net/netfilter/xt_CHECKSUM.c b/net/netfilter/xt_CHECKSUM.c index 9f4151ec3e06..6c7aa6a0a0d2 100644 --- a/net/netfilter/xt_CHECKSUM.c +++ b/net/netfilter/xt_CHECKSUM.c @@ -16,6 +16,9 @@ #include #include +#include +#include + MODULE_LICENSE("GPL"); MODULE_AUTHOR("Michael S. Tsirkin "); MODULE_DESCRIPTION("Xtables: checksum modification"); @@ -25,7 +28,7 @@ MODULE_ALIAS("ip6t_CHECKSUM"); static unsigned int checksum_tg(struct sk_buff *skb, const struct xt_action_param *par) { - if (skb->ip_summed == CHECKSUM_PARTIAL) + if (skb->ip_summed == CHECKSUM_PARTIAL && !skb_is_gso(skb)) skb_checksum_help(skb); return XT_CONTINUE; @@ -34,6 +37,8 @@ checksum_tg(struct sk_buff *skb, const struct xt_action_param *par) static int checksum_tg_check(const struct xt_tgchk_param *par) { const struct xt_CHECKSUM_info *einfo = par->targinfo; + const struct ip6t_ip6 *i6 = par->entryinfo; + const struct ipt_ip *i4 = par->entryinfo; if (einfo->operation & ~XT_CHECKSUM_OP_FILL) { pr_info_ratelimited("unsupported CHECKSUM operation %x\n", @@ -43,6 +48,21 @@ static int checksum_tg_check(const struct xt_tgchk_param *par) if (!einfo->operation) return -EINVAL; + switch (par->family) { + case NFPROTO_IPV4: + if (i4->proto == IPPROTO_UDP && + (i4->invflags & XT_INV_PROTO) == 0) + return 0; + break; + case NFPROTO_IPV6: + if ((i6->flags & IP6T_F_PROTO) && + i6->proto == IPPROTO_UDP && + (i6->invflags & XT_INV_PROTO) == 0) + return 0; + break; + } + + pr_warn_once("CHECKSUM should be avoided. If really needed, restrict with \"-p udp\" and only use in OUTPUT\n"); return 0; } From 82c82ab658655befcb6aa47cbdb98dadce1a0cfe Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 21 Aug 2018 12:00:08 +0200 Subject: [PATCH 0101/1762] udf: Remove dead code from udf_find_fileset() Remove dead code and slightly simplify code in udf_find_fileset(). Signed-off-by: Jan Kara --- fs/udf/super.c | 62 +------------------------------------------------- 1 file changed, 1 insertion(+), 61 deletions(-) diff --git a/fs/udf/super.c b/fs/udf/super.c index 3040dc2a32f6..68d57b61f3af 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -764,9 +764,7 @@ static int udf_find_fileset(struct super_block *sb, struct kernel_lb_addr *root) { struct buffer_head *bh = NULL; - long lastblock; uint16_t ident; - struct udf_sb_info *sbi; if (fileset->logicalBlockNum != 0xFFFFFFFF || fileset->partitionReferenceNum != 0xFFFF) { @@ -779,69 +777,11 @@ static int udf_find_fileset(struct super_block *sb, return 1; } - } - - sbi = UDF_SB(sb); - if (!bh) { - /* Search backwards through the partitions */ - struct kernel_lb_addr newfileset; - -/* --> cvg: FIXME - is it reasonable? */ - return 1; - - for (newfileset.partitionReferenceNum = sbi->s_partitions - 1; - (newfileset.partitionReferenceNum != 0xFFFF && - fileset->logicalBlockNum == 0xFFFFFFFF && - fileset->partitionReferenceNum == 0xFFFF); - newfileset.partitionReferenceNum--) { - lastblock = sbi->s_partmaps - [newfileset.partitionReferenceNum] - .s_partition_len; - newfileset.logicalBlockNum = 0; - - do { - bh = udf_read_ptagged(sb, &newfileset, 0, - &ident); - if (!bh) { - newfileset.logicalBlockNum++; - continue; - } - - switch (ident) { - case TAG_IDENT_SBD: - { - struct spaceBitmapDesc *sp; - sp = (struct spaceBitmapDesc *) - bh->b_data; - newfileset.logicalBlockNum += 1 + - ((le32_to_cpu(sp->numOfBytes) + - sizeof(struct spaceBitmapDesc) - - 1) >> sb->s_blocksize_bits); - brelse(bh); - break; - } - case TAG_IDENT_FSD: - *fileset = newfileset; - break; - default: - newfileset.logicalBlockNum++; - brelse(bh); - bh = NULL; - break; - } - } while (newfileset.logicalBlockNum < lastblock && - fileset->logicalBlockNum == 0xFFFFFFFF && - fileset->partitionReferenceNum == 0xFFFF); - } - } - - if ((fileset->logicalBlockNum != 0xFFFFFFFF || - fileset->partitionReferenceNum != 0xFFFF) && bh) { udf_debug("Fileset at block=%u, partition=%u\n", fileset->logicalBlockNum, fileset->partitionReferenceNum); - sbi->s_partition = fileset->partitionReferenceNum; + UDF_SB(sb)->s_partition = fileset->partitionReferenceNum; udf_load_fileset(sb, bh, root); brelse(bh); return 0; From ee4af50ca94f58afc3532662779b9cf80bbe27c8 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 21 Aug 2018 14:52:34 +0200 Subject: [PATCH 0102/1762] udf: Fix mounting of Win7 created UDF filesystems Win7 is creating UDF filesystems with single partition with number 8192. Current partition descriptor scanning code does not handle this well as it incorrectly assumes that partition numbers will form mostly contiguous space of small numbers. This results in unmountable media due to errors like: UDF-fs: error (device dm-1): udf_read_tagged: tag version 0x0000 != 0x0002 || 0x0003, block 0 UDF-fs: warning (device dm-1): udf_fill_super: No fileset found Fix the problem by handling partition descriptors in a way that sparse partition numbering does not matter. Reported-and-tested-by: jean-luc malet CC: stable@vger.kernel.org Fixes: 7b78fd02fb19530fd101ae137a1f46aa466d9bb6 Signed-off-by: Jan Kara --- fs/udf/super.c | 31 +++++++++++++++++++------------ 1 file changed, 19 insertions(+), 12 deletions(-) diff --git a/fs/udf/super.c b/fs/udf/super.c index 68d57b61f3af..6f515651a2c2 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -1510,10 +1510,16 @@ static void udf_load_logicalvolint(struct super_block *sb, struct kernel_extent_ */ #define PART_DESC_ALLOC_STEP 32 +struct part_desc_seq_scan_data { + struct udf_vds_record rec; + u32 partnum; +}; + struct desc_seq_scan_data { struct udf_vds_record vds[VDS_POS_LENGTH]; unsigned int size_part_descs; - struct udf_vds_record *part_descs_loc; + unsigned int num_part_descs; + struct part_desc_seq_scan_data *part_descs_loc; }; static struct udf_vds_record *handle_partition_descriptor( @@ -1522,10 +1528,14 @@ static struct udf_vds_record *handle_partition_descriptor( { struct partitionDesc *desc = (struct partitionDesc *)bh->b_data; int partnum; + int i; partnum = le16_to_cpu(desc->partitionNumber); - if (partnum >= data->size_part_descs) { - struct udf_vds_record *new_loc; + for (i = 0; i < data->num_part_descs; i++) + if (partnum == data->part_descs_loc[i].partnum) + return &(data->part_descs_loc[i].rec); + if (data->num_part_descs >= data->size_part_descs) { + struct part_desc_seq_scan_data *new_loc; unsigned int new_size = ALIGN(partnum, PART_DESC_ALLOC_STEP); new_loc = kcalloc(new_size, sizeof(*new_loc), GFP_KERNEL); @@ -1537,7 +1547,7 @@ static struct udf_vds_record *handle_partition_descriptor( data->part_descs_loc = new_loc; data->size_part_descs = new_size; } - return &(data->part_descs_loc[partnum]); + return &(data->part_descs_loc[data->num_part_descs++].rec); } @@ -1587,6 +1597,7 @@ static noinline int udf_process_sequence( memset(data.vds, 0, sizeof(struct udf_vds_record) * VDS_POS_LENGTH); data.size_part_descs = PART_DESC_ALLOC_STEP; + data.num_part_descs = 0; data.part_descs_loc = kcalloc(data.size_part_descs, sizeof(*data.part_descs_loc), GFP_KERNEL); @@ -1598,7 +1609,6 @@ static noinline int udf_process_sequence( * are in it. */ for (; (!done && block <= lastblock); block++) { - bh = udf_read_tagged(sb, block, block, &ident); if (!bh) break; @@ -1670,13 +1680,10 @@ static noinline int udf_process_sequence( } /* Now handle prevailing Partition Descriptors */ - for (i = 0; i < data.size_part_descs; i++) { - if (data.part_descs_loc[i].block) { - ret = udf_load_partdesc(sb, - data.part_descs_loc[i].block); - if (ret < 0) - return ret; - } + for (i = 0; i < data.num_part_descs; i++) { + ret = udf_load_partdesc(sb, data.part_descs_loc[i].rec.block); + if (ret < 0) + return ret; } return 0; From 5e2e2f9f76e157063a656351728703cb02b068f1 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 23 Aug 2018 16:59:25 +0300 Subject: [PATCH 0103/1762] PM / clk: signedness bug in of_pm_clk_add_clks() "count" needs to be signed for the error handling to work. I made "i" signed as well so they match. Fixes: 02113ba93ea4 (PM / clk: Add support for obtaining clocks from device-tree) Cc: 4.6+ # 4.6+ Signed-off-by: Dan Carpenter Signed-off-by: Rafael J. Wysocki --- drivers/base/power/clock_ops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c index 8e2e4757adcb..5a42ae4078c2 100644 --- a/drivers/base/power/clock_ops.c +++ b/drivers/base/power/clock_ops.c @@ -185,7 +185,7 @@ EXPORT_SYMBOL_GPL(of_pm_clk_add_clk); int of_pm_clk_add_clks(struct device *dev) { struct clk **clks; - unsigned int i, count; + int i, count; int ret; if (!dev || !dev->of_node) From b6fdfbff078975c53383fc146a2a54985eab6b6d Mon Sep 17 00:00:00 2001 From: Misono Tomohiro Date: Fri, 24 Aug 2018 11:35:28 +0900 Subject: [PATCH 0104/1762] btrfs: Fix suspicious RCU usage warning in btrfs_debug_in_rcu Commit 672d599041c8 ("btrfs: Use wrapper macro for rcu string to remove duplicate code") replaces some open coded RCU string handling with macro. It turns out that btrfs_debug_in_rcu() is used for the first time and the macro lacks lock/unlock of RCU string for non-debug case (i.e. when the message is not printed), leading to suspicious RCU usage warning when CONFIG_PROVE_RCU is on. Fix this by adding a wrapper to call lock/unlock for the non-debug case too. Fixes: 672d599041c8 ("btrfs: Use wrapper macro for rcu string to remove duplicate code") Reported-by: David Howells Tested-by: David Howells Signed-off-by: Misono Tomohiro Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/ctree.h | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index a67cc190a84b..0b856da2fd3b 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3390,9 +3390,9 @@ do { \ #define btrfs_debug(fs_info, fmt, args...) \ btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args) #define btrfs_debug_in_rcu(fs_info, fmt, args...) \ - btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args) + btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args) #define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \ - btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args) + btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args) #define btrfs_debug_rl(fs_info, fmt, args...) \ btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args) #endif @@ -3404,6 +3404,13 @@ do { \ rcu_read_unlock(); \ } while (0) +#define btrfs_no_printk_in_rcu(fs_info, fmt, args...) \ +do { \ + rcu_read_lock(); \ + btrfs_no_printk(fs_info, fmt, ##args); \ + rcu_read_unlock(); \ +} while (0) + #define btrfs_printk_ratelimited(fs_info, fmt, args...) \ do { \ static DEFINE_RATELIMIT_STATE(_rs, \ From a9910c0886470b659a6c3629d6467d5639c327e9 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Thu, 19 Jul 2018 22:04:07 +0800 Subject: [PATCH 0105/1762] ixgb: use dma_zalloc_coherent instead of allocator/memset Use dma_zalloc_coherent instead of dma_alloc_coherent followed by memset 0. Signed-off-by: YueHaibing Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgb/ixgb_main.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c index 43664adf7a3c..d3e72d0f66ef 100644 --- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c +++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c @@ -771,14 +771,13 @@ ixgb_setup_rx_resources(struct ixgb_adapter *adapter) rxdr->size = rxdr->count * sizeof(struct ixgb_rx_desc); rxdr->size = ALIGN(rxdr->size, 4096); - rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma, - GFP_KERNEL); + rxdr->desc = dma_zalloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma, + GFP_KERNEL); if (!rxdr->desc) { vfree(rxdr->buffer_info); return -ENOMEM; } - memset(rxdr->desc, 0, rxdr->size); rxdr->next_to_clean = 0; rxdr->next_to_use = 0; From cf1acec008f8d7761aa3fd7c4bca7e17b2d2512d Mon Sep 17 00:00:00 2001 From: Bo Chen Date: Mon, 23 Jul 2018 09:01:29 -0700 Subject: [PATCH 0106/1762] e1000: check on netif_running() before calling e1000_up() When the device is not up, the call to 'e1000_up()' from the error handling path of 'e1000_set_ringparam()' causes a kernel oops with a null-pointer dereference. The null-pointer dereference is triggered in function 'e1000_alloc_rx_buffers()' at line 'buffer_info = &rx_ring->buffer_info[i]'. This bug was reported by COD, a tool for testing kernel module binaries I am building. This bug was also detected by KFI from Dr. Kai Cong. This patch fixes the bug by checking on 'netif_running()' before calling 'e1000_up()' in 'e1000_set_ringparam()'. Signed-off-by: Bo Chen Acked-by: Alexander Duyck Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/e1000/e1000_ethtool.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c index bdb3f8e65ed4..c1e4e94f100f 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c +++ b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c @@ -644,7 +644,8 @@ err_setup_rx: err_alloc_rx: kfree(txdr); err_alloc_tx: - e1000_up(adapter); + if (netif_running(adapter->netdev)) + e1000_up(adapter); err_setup: clear_bit(__E1000_RESETTING, &adapter->flags); return err; From ee400a3f1bfe7004a3e14b81c38ccc5583c26295 Mon Sep 17 00:00:00 2001 From: Bo Chen Date: Mon, 23 Jul 2018 09:01:30 -0700 Subject: [PATCH 0107/1762] e1000: ensure to free old tx/rx rings in set_ringparam() In 'e1000_set_ringparam()', the tx_ring and rx_ring are updated with new value and the old tx/rx rings are freed only when the device is up. There are resource leaks on old tx/rx rings when the device is not up. This bug is reported by COD, a tool for testing kernel module binaries I am building. This patch fixes the bug by always calling 'kfree()' on old tx/rx rings in 'e1000_set_ringparam()'. Signed-off-by: Bo Chen Reviewed-by: Alexander Duyck Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/e1000/e1000_ethtool.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c index c1e4e94f100f..2569a168334c 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c +++ b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c @@ -624,14 +624,14 @@ static int e1000_set_ringparam(struct net_device *netdev, adapter->tx_ring = tx_old; e1000_free_all_rx_resources(adapter); e1000_free_all_tx_resources(adapter); - kfree(tx_old); - kfree(rx_old); adapter->rx_ring = rxdr; adapter->tx_ring = txdr; err = e1000_up(adapter); if (err) goto err_setup; } + kfree(tx_old); + kfree(rx_old); clear_bit(__E1000_RESETTING, &adapter->flags); return 0; From a798fbac33c4cbfe7d539298623b7af6c3f9525a Mon Sep 17 00:00:00 2001 From: Jesus Sanchez-Palencia Date: Thu, 26 Jul 2018 10:20:38 -0700 Subject: [PATCH 0108/1762] igb: Use an advanced ctx descriptor for launchtime On i210, Launchtime (TxTime) requires the usage of an "Advanced Transmit Context Descriptor" for retrieving the timestamp of a packet. The igb driver correctly builds such descriptor on the segmentation flow (i.e. igb_tso()) or on the checksum one (i.e. igb_tx_csum()), but the feature is broken for AF_PACKET if the IGB_TX_FLAGS_VLAN is not set, which happens due to an early return on igb_tx_csum(). This flag is only set by the kernel when a VLAN interface is used, thus we can't just rely on it. Here we are fixing this issue by checking if launchtime is enabled for the current tx_ring before performing the early return. Signed-off-by: Jesus Sanchez-Palencia Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/igb/igb_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index d03c2f0d7592..74416f8a9446 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -5816,7 +5816,8 @@ static void igb_tx_csum(struct igb_ring *tx_ring, struct igb_tx_buffer *first) if (skb->ip_summed != CHECKSUM_PARTIAL) { csum_failed: - if (!(first->tx_flags & IGB_TX_FLAGS_VLAN)) + if (!(first->tx_flags & IGB_TX_FLAGS_VLAN) && + !tx_ring->launchtime_enable) return; goto no_csum; } From 151356270b0761e455ed82bba3353fb494451555 Mon Sep 17 00:00:00 2001 From: Jia-Ju Bai Date: Fri, 27 Jul 2018 16:04:53 +0800 Subject: [PATCH 0109/1762] igb: Replace GFP_ATOMIC with GFP_KERNEL in igb_sw_init() igb_sw_init() is never called in atomic context. It calls kzalloc() and kcalloc() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC can be replaced with GFP_KERNEL. This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/igb/igb_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 74416f8a9446..a32c576c1e65 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -3873,7 +3873,7 @@ static int igb_sw_init(struct igb_adapter *adapter) adapter->mac_table = kcalloc(hw->mac.rar_entry_count, sizeof(struct igb_mac_addr), - GFP_ATOMIC); + GFP_KERNEL); if (!adapter->mac_table) return -ENOMEM; @@ -3883,7 +3883,7 @@ static int igb_sw_init(struct igb_adapter *adapter) /* Setup and initialize a copy of the hw vlan table array */ adapter->shadow_vfta = kcalloc(E1000_VLAN_FILTER_TBL_SIZE, sizeof(u32), - GFP_ATOMIC); + GFP_KERNEL); if (!adapter->shadow_vfta) return -ENOMEM; From 69a64658de502c8ca383fe2c5a5208f00b5844cd Mon Sep 17 00:00:00 2001 From: Jia-Ju Bai Date: Fri, 27 Jul 2018 16:07:38 +0800 Subject: [PATCH 0110/1762] igb: Replace mdelay() with msleep() in igb_integrated_phy_loopback() igb_integrated_phy_loopback() is never called in atomic context. It calls mdelay() to busily wait, which is not necessary. mdelay() can be replaced with msleep(). This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/igb/igb_ethtool.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c index f92f7918112d..5acf3b743876 100644 --- a/drivers/net/ethernet/intel/igb/igb_ethtool.c +++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c @@ -1649,7 +1649,7 @@ static int igb_integrated_phy_loopback(struct igb_adapter *adapter) if (hw->phy.type == e1000_phy_m88) igb_phy_disable_receiver(adapter); - mdelay(500); + msleep(500); return 0; } From 374f78f75be98c72876a4d0311b278cd226effba Mon Sep 17 00:00:00 2001 From: Jia-Ju Bai Date: Fri, 27 Jul 2018 16:22:31 +0800 Subject: [PATCH 0111/1762] ixgbe: Replace GFP_ATOMIC with GFP_KERNEL ixgbe_fcoe_ddp_setup(), ixgbe_setup_fcoe_ddp_resources() and ixgbe_sw_init() are never called in atomic context. They call kmalloc(), dma_pool_alloc() and kzalloc() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC can be replaced with GFP_KERNEL. This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai Acked-by: Sebastian Basierski Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c | 4 ++-- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c index 94b3165ff543..ccd852ad62a4 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c @@ -192,7 +192,7 @@ static int ixgbe_fcoe_ddp_setup(struct net_device *netdev, u16 xid, } /* alloc the udl from per cpu ddp pool */ - ddp->udl = dma_pool_alloc(ddp_pool->pool, GFP_ATOMIC, &ddp->udp); + ddp->udl = dma_pool_alloc(ddp_pool->pool, GFP_KERNEL, &ddp->udp); if (!ddp->udl) { e_err(drv, "failed allocated ddp context\n"); goto out_noddp_unmap; @@ -760,7 +760,7 @@ int ixgbe_setup_fcoe_ddp_resources(struct ixgbe_adapter *adapter) return 0; /* Extra buffer to be shared by all DDPs for HW work around */ - buffer = kmalloc(IXGBE_FCBUFF_MIN, GFP_ATOMIC); + buffer = kmalloc(IXGBE_FCBUFF_MIN, GFP_KERNEL); if (!buffer) return -ENOMEM; diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index af4c9ae7f432..663d59ba527a 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -6201,7 +6201,7 @@ static int ixgbe_sw_init(struct ixgbe_adapter *adapter, adapter->mac_table = kcalloc(hw->mac.num_rar_entries, sizeof(struct ixgbe_mac_addr), - GFP_ATOMIC); + GFP_KERNEL); if (!adapter->mac_table) return -ENOMEM; From fabf1bce103aa8e3db27ff2cc55f8e0fb0abcc30 Mon Sep 17 00:00:00 2001 From: Tony Nguyen Date: Mon, 30 Jul 2018 15:52:48 -0700 Subject: [PATCH 0112/1762] ixgbe: Prevent unsupported configurations with XDP These changes address comments by Jakub Kicinski on commit 38b7e7f8ae82 ("ixgbe: Do not allow LRO or MTU change with XDP"). Change the MTU check with XDP to allow any supported value and only reject those outside of the range as opposed to rejecting any change when XDP is active. In situations where MTU size is not supported, return -EINVAL instead of -EPERM. Add checks when enabling SRIOV, DCB, or adding L2FW offloaded device as they are not supported with XDP. CC: Jakub Kicinski Signed-off-by: Tony Nguyen Acked-by: Jakub Kicinski Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 28 +++++++++++++++++-- .../net/ethernet/intel/ixgbe/ixgbe_sriov.c | 5 ++++ 2 files changed, 31 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 663d59ba527a..9a23d33a47ed 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -6620,8 +6620,18 @@ static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu) struct ixgbe_adapter *adapter = netdev_priv(netdev); if (adapter->xdp_prog) { - e_warn(probe, "MTU cannot be changed while XDP program is loaded\n"); - return -EPERM; + int new_frame_size = new_mtu + ETH_HLEN + ETH_FCS_LEN + + VLAN_HLEN; + int i; + + for (i = 0; i < adapter->num_rx_queues; i++) { + struct ixgbe_ring *ring = adapter->rx_ring[i]; + + if (new_frame_size > ixgbe_rx_bufsz(ring)) { + e_warn(probe, "Requested MTU size is not supported with XDP\n"); + return -EINVAL; + } + } } /* @@ -8983,6 +8993,15 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) #ifdef CONFIG_IXGBE_DCB if (tc) { + if (adapter->xdp_prog) { + e_warn(probe, "DCB is not supported with XDP\n"); + + ixgbe_init_interrupt_scheme(adapter); + if (netif_running(dev)) + ixgbe_open(dev); + return -EINVAL; + } + netdev_set_num_tc(dev, tc); ixgbe_set_prio_tc_map(adapter); @@ -9934,6 +9953,11 @@ static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev) int tcs = adapter->hw_tcs ? : 1; int pool, err; + if (adapter->xdp_prog) { + e_warn(probe, "L2FW offload is not supported with XDP\n"); + return ERR_PTR(-EINVAL); + } + /* The hardware supported by ixgbe only filters on the destination MAC * address. In order to avoid issues we only support offloading modes * where the hardware can actually provide the functionality. diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c index 6f59933cdff7..9264a5f8a5d0 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c @@ -53,6 +53,11 @@ static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter, struct ixgbe_hw *hw = &adapter->hw; int i; + if (adapter->xdp_prog) { + e_warn(probe, "SRIOV is not supported with XDP\n"); + return -EINVAL; + } + /* Enable VMDq flag so device will be set in VM mode */ adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED | IXGBE_FLAG_VMDQ_ENABLED; From 939b701ad63314f5aa90dcd3d866f73954945209 Mon Sep 17 00:00:00 2001 From: Sebastian Basierski Date: Tue, 31 Jul 2018 18:16:00 +0200 Subject: [PATCH 0113/1762] ixgbe: fix driver behaviour after issuing VFLR Since VFLR doesn't clear VFMBMEM (VF Mailbox Memory) and is not re-enabling queues correctly we should fix this behavior. Signed-off-by: Sebastian Basierski Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- .../net/ethernet/intel/ixgbe/ixgbe_sriov.c | 26 +++++++++++++++++++ drivers/net/ethernet/intel/ixgbe/ixgbe_type.h | 1 + 2 files changed, 27 insertions(+) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c index 9264a5f8a5d0..3c6f01c41b78 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c @@ -693,8 +693,13 @@ static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) { struct ixgbe_hw *hw = &adapter->hw; + struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; + u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask); u8 num_tcs = adapter->hw_tcs; + u32 reg_val; + u32 queue; + u32 word; /* remove VLAN filters beloning to this VF */ ixgbe_clear_vf_vlans(adapter, vf); @@ -731,6 +736,27 @@ static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) /* reset VF api back to unknown */ adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10; + + /* Restart each queue for given VF */ + for (queue = 0; queue < q_per_pool; queue++) { + unsigned int reg_idx = (vf * q_per_pool) + queue; + + reg_val = IXGBE_READ_REG(hw, IXGBE_PVFTXDCTL(reg_idx)); + + /* Re-enabling only configured queues */ + if (reg_val) { + reg_val |= IXGBE_TXDCTL_ENABLE; + IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val); + reg_val &= ~IXGBE_TXDCTL_ENABLE; + IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val); + } + } + + /* Clear VF's mailbox memory */ + for (word = 0; word < IXGBE_VFMAILBOX_SIZE; word++) + IXGBE_WRITE_REG_ARRAY(hw, IXGBE_PFMBMEM(vf), word, 0); + + IXGBE_WRITE_FLUSH(hw); } static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter, diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h index 44cfb2021145..41bcbb337e83 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h @@ -2518,6 +2518,7 @@ enum { /* Translated register #defines */ #define IXGBE_PVFTDH(P) (0x06010 + (0x40 * (P))) #define IXGBE_PVFTDT(P) (0x06018 + (0x40 * (P))) +#define IXGBE_PVFTXDCTL(P) (0x06028 + (0x40 * (P))) #define IXGBE_PVFTDWBAL(P) (0x06038 + (0x40 * (P))) #define IXGBE_PVFTDWBAH(P) (0x0603C + (0x40 * (P))) From fa38e30ac73fbb01d7e5d0fd1b12d412fa3ac3ee Mon Sep 17 00:00:00 2001 From: Martyna Szapar Date: Tue, 7 Aug 2018 17:11:23 -0700 Subject: [PATCH 0114/1762] i40e: Fix for Tx timeouts when interface is brought up if DCB is enabled If interface is connected to switch port configured for DCB there are TX timeouts when bringing up interface. Problem started appearing after adding in i40e driver code mqprio hardware offload mode. In function i40e_vsi_configure_bw_alloc was added resetting BW rate which should be executing when mqprio qdisc is removed but was also when there was no mqprio qdisc added and DCB was enabled. In this patch was added additional check for DCB flag so now when DCB is enabled the correct DCB configs from before mqprio patch are restored. Signed-off-by: Martyna Szapar Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_main.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index f2c622e78802..ac685ad4d877 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -5122,15 +5122,17 @@ static int i40e_vsi_configure_bw_alloc(struct i40e_vsi *vsi, u8 enabled_tc, u8 *bw_share) { struct i40e_aqc_configure_vsi_tc_bw_data bw_data; + struct i40e_pf *pf = vsi->back; i40e_status ret; int i; - if (vsi->back->flags & I40E_FLAG_TC_MQPRIO) + /* There is no need to reset BW when mqprio mode is on. */ + if (pf->flags & I40E_FLAG_TC_MQPRIO) return 0; - if (!vsi->mqprio_qopt.qopt.hw) { + if (!vsi->mqprio_qopt.qopt.hw && !(pf->flags & I40E_FLAG_DCB_ENABLED)) { ret = i40e_set_bw_limit(vsi, vsi->seid, 0); if (ret) - dev_info(&vsi->back->pdev->dev, + dev_info(&pf->pdev->dev, "Failed to reset tx rate for vsi->seid %u\n", vsi->seid); return ret; @@ -5139,12 +5141,11 @@ static int i40e_vsi_configure_bw_alloc(struct i40e_vsi *vsi, u8 enabled_tc, for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) bw_data.tc_bw_credits[i] = bw_share[i]; - ret = i40e_aq_config_vsi_tc_bw(&vsi->back->hw, vsi->seid, &bw_data, - NULL); + ret = i40e_aq_config_vsi_tc_bw(&pf->hw, vsi->seid, &bw_data, NULL); if (ret) { - dev_info(&vsi->back->pdev->dev, + dev_info(&pf->pdev->dev, "AQ command Config VSI BW allocation per TC failed = %d\n", - vsi->back->hw.aq.asq_last_status); + pf->hw.aq.asq_last_status); return -EINVAL; } From 07f3701387dcab3a4fb0166098fb2754a1b927e1 Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Mon, 20 Aug 2018 08:12:27 -0700 Subject: [PATCH 0115/1762] i40e: fix condition of WARN_ONCE for stat strings Commit 9b10df596bd4 ("i40e: use WARN_ONCE to replace the commented BUG_ON size check") introduced a warning check to make sure that the size of the stat strings was always the expected value. This code accidentally inverted the check of the data pointer. Fix this so that we accurately count the size of the stats we copied in. This fixes an erroneous WARN kernel splat that occurs when requesting ethtool statistics. Signed-off-by: Jacob Keller Tested-by: Andrew Bowers Tested-by: Mauro S M Rodrigues Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c index abcd096ede14..5ff6caa83948 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c @@ -2013,7 +2013,7 @@ static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); - WARN_ONCE(p - data != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, + WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, "stat strings count mismatch!"); } From a296b16270ab8d3b1c2a41ca1dd4d2fc34b598d9 Mon Sep 17 00:00:00 2001 From: Rex Zhu Date: Thu, 16 Aug 2018 11:36:38 +0800 Subject: [PATCH 0116/1762] drm/amd/display: Fix bug use wrong pp interface Used wrong pp interface, the original interface is exposed by dpm on SI and paritial CI. Pointed out by Francis David v2: dal only need to set min_dcefclk and min_fclk to smu. so use display_clock_voltage_request interface, instand of update all display configuration. Acked-by: Alex Deucher Signed-off-by: Rex Zhu Signed-off-by: Alex Deucher --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c index fbe878ae1e8c..4ba0003a9d32 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c @@ -480,12 +480,20 @@ void pp_rv_set_display_requirement(struct pp_smu *pp, { struct dc_context *ctx = pp->ctx; struct amdgpu_device *adev = ctx->driver_context; + void *pp_handle = adev->powerplay.pp_handle; const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs; + struct pp_display_clock_request clock = {0}; - if (!pp_funcs || !pp_funcs->display_configuration_changed) + if (!pp_funcs || !pp_funcs->display_clock_voltage_request) return; - amdgpu_dpm_display_configuration_changed(adev); + clock.clock_type = amd_pp_dcf_clock; + clock.clock_freq_in_khz = req->hard_min_dcefclk_khz; + pp_funcs->display_clock_voltage_request(pp_handle, &clock); + + clock.clock_type = amd_pp_f_clock; + clock.clock_freq_in_khz = req->hard_min_fclk_khz; + pp_funcs->display_clock_voltage_request(pp_handle, &clock); } void pp_rv_set_wm_ranges(struct pp_smu *pp, From 757ab15c3f4968b5a29caf3fe8b67660ce84c3cd Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 21 Aug 2018 10:44:10 +0200 Subject: [PATCH 0117/1762] cpuidle: menu: Retain tick when shallow state is selected The case addressed by commit 5ef499cd571c (cpuidle: menu: Handle stopped tick more aggressively) in the stopped tick case is present when the tick has not been stopped yet too. Namely, if only two CPU idle states, shallow state A with target residency significantly below the tick boundary and deep state B with target residency significantly above it, are available and the predicted idle duration is above the tick boundary, but below the target residency of state B, state A will be selected and the CPU may spend indefinite amount of time in it, which is not quite energy-efficient. However, if the tick has not been stopped yet and the governor is about to select a shallow idle state for the CPU even though the idle duration predicted by it is above the tick boundary, it should be fine to wake up the CPU early, so the tick can be retained then and the governor will have a chance to select a deeper state when it runs next time. [Note that when this really happens, it will make the idle duration predictor believe that the CPU might be idle longer than predicted, which will make it more likely to predict longer idle durations going forward, but that will also cause deeper idle states to be selected going forward, on average, which is what's needed here.] Fixes: 87c9fe6ee495 (cpuidle: menu: Avoid selecting shallow states with stopped tick) Reported-by: Leo Yan Cc: 4.17+ # 4.17+: 5ef499cd571c (cpuidle: menu: Handle ...) Signed-off-by: Rafael J. Wysocki --- drivers/cpuidle/governors/menu.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index 110483f0e3fb..e26a40971b26 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -379,9 +379,20 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, if (idx == -1) idx = i; /* first enabled state */ if (s->target_residency > data->predicted_us) { - if (!tick_nohz_tick_stopped()) + if (data->predicted_us < TICK_USEC) break; + if (!tick_nohz_tick_stopped()) { + /* + * If the state selected so far is shallow, + * waking up early won't hurt, so retain the + * tick in that case and let the governor run + * again in the next iteration of the loop. + */ + expected_interval = drv->states[idx].target_residency; + break; + } + /* * If the state selected so far is shallow and this * state's target residency matches the time till the From cc98963dbaaea93d17608641b8d6942a5327fc31 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Horia=20Geant=C4=83?= Date: Mon, 6 Aug 2018 15:29:09 +0300 Subject: [PATCH 0118/1762] crypto: caam/jr - fix descriptor DMA unmapping MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Descriptor address needs to be swapped to CPU endianness before being DMA unmapped. Cc: # 4.8+ Fixes: 261ea058f016 ("crypto: caam - handle core endianness != caam endianness") Reported-by: Laurentiu Tudor Signed-off-by: Horia Geantă Signed-off-by: Herbert Xu --- drivers/crypto/caam/jr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c index f4f258075b89..acdd72016ffe 100644 --- a/drivers/crypto/caam/jr.c +++ b/drivers/crypto/caam/jr.c @@ -190,7 +190,8 @@ static void caam_jr_dequeue(unsigned long devarg) BUG_ON(CIRC_CNT(head, tail + i, JOBR_DEPTH) <= 0); /* Unmap just-run descriptor so we can post-process */ - dma_unmap_single(dev, jrp->outring[hw_idx].desc, + dma_unmap_single(dev, + caam_dma_to_cpu(jrp->outring[hw_idx].desc), jrp->entinfo[sw_idx].desc_size, DMA_TO_DEVICE); From ad876a18048f43b1f66f5d474b7598538668c5de Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Horia=20Geant=C4=83?= Date: Mon, 6 Aug 2018 15:29:39 +0300 Subject: [PATCH 0119/1762] crypto: caam/qi - fix error path in xts setkey MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit xts setkey callback returns 0 on some error paths. Fix this by returning -EINVAL. Cc: # 4.12+ Fixes: b189817cf789 ("crypto: caam/qi - add ablkcipher and authenc algorithms") Signed-off-by: Horia Geantă Signed-off-by: Herbert Xu --- drivers/crypto/caam/caamalg_qi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c index 6e61cc93c2b0..d7aa7d7ff102 100644 --- a/drivers/crypto/caam/caamalg_qi.c +++ b/drivers/crypto/caam/caamalg_qi.c @@ -679,10 +679,8 @@ static int xts_ablkcipher_setkey(struct crypto_ablkcipher *ablkcipher, int ret = 0; if (keylen != 2 * AES_MIN_KEY_SIZE && keylen != 2 * AES_MAX_KEY_SIZE) { - crypto_ablkcipher_set_flags(ablkcipher, - CRYPTO_TFM_RES_BAD_KEY_LEN); dev_err(jrdev, "key size mismatch\n"); - return -EINVAL; + goto badkey; } ctx->cdata.keylen = keylen; @@ -715,7 +713,7 @@ static int xts_ablkcipher_setkey(struct crypto_ablkcipher *ablkcipher, return ret; badkey: crypto_ablkcipher_set_flags(ablkcipher, CRYPTO_TFM_RES_BAD_KEY_LEN); - return 0; + return -EINVAL; } /* From f1bf9e60a0779ec97de9ecdc353e1d01cdd73f43 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Horia=20Geant=C4=83?= Date: Mon, 6 Aug 2018 15:29:55 +0300 Subject: [PATCH 0120/1762] crypto: caam - fix DMA mapping direction for RSA forms 2 & 3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Crypto engine needs some temporary locations in external memory for running RSA decrypt forms 2 and 3 (CRT). These are named "tmp1" and "tmp2" in the PDB. Update DMA mapping direction of tmp1 and tmp2 from TO_DEVICE to BIDIRECTIONAL, since engine needs r/w access. Cc: # 4.13+ Fixes: 52e26d77b8b3 ("crypto: caam - add support for RSA key form 2") Fixes: 4a651b122adb ("crypto: caam - add support for RSA key form 3") Signed-off-by: Horia Geantă Signed-off-by: Herbert Xu --- drivers/crypto/caam/caampkc.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c index 578ea63a3109..f26d62e5533a 100644 --- a/drivers/crypto/caam/caampkc.c +++ b/drivers/crypto/caam/caampkc.c @@ -71,8 +71,8 @@ static void rsa_priv_f2_unmap(struct device *dev, struct rsa_edesc *edesc, dma_unmap_single(dev, pdb->d_dma, key->d_sz, DMA_TO_DEVICE); dma_unmap_single(dev, pdb->p_dma, p_sz, DMA_TO_DEVICE); dma_unmap_single(dev, pdb->q_dma, q_sz, DMA_TO_DEVICE); - dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_TO_DEVICE); - dma_unmap_single(dev, pdb->tmp2_dma, q_sz, DMA_TO_DEVICE); + dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_BIDIRECTIONAL); + dma_unmap_single(dev, pdb->tmp2_dma, q_sz, DMA_BIDIRECTIONAL); } static void rsa_priv_f3_unmap(struct device *dev, struct rsa_edesc *edesc, @@ -90,8 +90,8 @@ static void rsa_priv_f3_unmap(struct device *dev, struct rsa_edesc *edesc, dma_unmap_single(dev, pdb->dp_dma, p_sz, DMA_TO_DEVICE); dma_unmap_single(dev, pdb->dq_dma, q_sz, DMA_TO_DEVICE); dma_unmap_single(dev, pdb->c_dma, p_sz, DMA_TO_DEVICE); - dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_TO_DEVICE); - dma_unmap_single(dev, pdb->tmp2_dma, q_sz, DMA_TO_DEVICE); + dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_BIDIRECTIONAL); + dma_unmap_single(dev, pdb->tmp2_dma, q_sz, DMA_BIDIRECTIONAL); } /* RSA Job Completion handler */ @@ -417,13 +417,13 @@ static int set_rsa_priv_f2_pdb(struct akcipher_request *req, goto unmap_p; } - pdb->tmp1_dma = dma_map_single(dev, key->tmp1, p_sz, DMA_TO_DEVICE); + pdb->tmp1_dma = dma_map_single(dev, key->tmp1, p_sz, DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, pdb->tmp1_dma)) { dev_err(dev, "Unable to map RSA tmp1 memory\n"); goto unmap_q; } - pdb->tmp2_dma = dma_map_single(dev, key->tmp2, q_sz, DMA_TO_DEVICE); + pdb->tmp2_dma = dma_map_single(dev, key->tmp2, q_sz, DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, pdb->tmp2_dma)) { dev_err(dev, "Unable to map RSA tmp2 memory\n"); goto unmap_tmp1; @@ -451,7 +451,7 @@ static int set_rsa_priv_f2_pdb(struct akcipher_request *req, return 0; unmap_tmp1: - dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_TO_DEVICE); + dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_BIDIRECTIONAL); unmap_q: dma_unmap_single(dev, pdb->q_dma, q_sz, DMA_TO_DEVICE); unmap_p: @@ -504,13 +504,13 @@ static int set_rsa_priv_f3_pdb(struct akcipher_request *req, goto unmap_dq; } - pdb->tmp1_dma = dma_map_single(dev, key->tmp1, p_sz, DMA_TO_DEVICE); + pdb->tmp1_dma = dma_map_single(dev, key->tmp1, p_sz, DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, pdb->tmp1_dma)) { dev_err(dev, "Unable to map RSA tmp1 memory\n"); goto unmap_qinv; } - pdb->tmp2_dma = dma_map_single(dev, key->tmp2, q_sz, DMA_TO_DEVICE); + pdb->tmp2_dma = dma_map_single(dev, key->tmp2, q_sz, DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, pdb->tmp2_dma)) { dev_err(dev, "Unable to map RSA tmp2 memory\n"); goto unmap_tmp1; @@ -538,7 +538,7 @@ static int set_rsa_priv_f3_pdb(struct akcipher_request *req, return 0; unmap_tmp1: - dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_TO_DEVICE); + dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_BIDIRECTIONAL); unmap_qinv: dma_unmap_single(dev, pdb->c_dma, p_sz, DMA_TO_DEVICE); unmap_dq: From 7fa885e2a22fd0f91a2c23d9275f5021f618ff5a Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Tue, 7 Aug 2018 23:18:36 +0200 Subject: [PATCH 0121/1762] crypto: arm64/sm4-ce - check for the right CPU feature bit ARMv8.2 specifies special instructions for the SM3 cryptographic hash and the SM4 symmetric cipher. While it is unlikely that a core would implement one and not the other, we should only use SM4 instructions if the SM4 CPU feature bit is set, and we currently check the SM3 feature bit instead. So fix that. Fixes: e99ce921c468 ("crypto: arm64 - add support for SM4...") Cc: Signed-off-by: Ard Biesheuvel Signed-off-by: Herbert Xu --- arch/arm64/crypto/sm4-ce-glue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/crypto/sm4-ce-glue.c b/arch/arm64/crypto/sm4-ce-glue.c index b7fb5274b250..0c4fc223f225 100644 --- a/arch/arm64/crypto/sm4-ce-glue.c +++ b/arch/arm64/crypto/sm4-ce-glue.c @@ -69,5 +69,5 @@ static void __exit sm4_ce_mod_fini(void) crypto_unregister_alg(&sm4_ce_alg); } -module_cpu_feature_match(SM3, sm4_ce_mod_init); +module_cpu_feature_match(SM4, sm4_ce_mod_init); module_exit(sm4_ce_mod_fini); From 65b2c12dcdb883fc015c0ec65d6c2f857e0456ac Mon Sep 17 00:00:00 2001 From: Ganesh Goudar Date: Fri, 10 Aug 2018 18:27:41 +0530 Subject: [PATCH 0122/1762] crypto: chtls - fix null dereference chtls_free_uld() call chtls_free_uld() only for the initialized cdev, this fixes NULL dereference in chtls_free_uld() Signed-off-by: Ganesh Goudar Signed-off-by: Atul Gupta Signed-off-by: Herbert Xu --- drivers/crypto/chelsio/chtls/chtls.h | 5 +++++ drivers/crypto/chelsio/chtls/chtls_main.c | 7 +++++-- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/chelsio/chtls/chtls.h b/drivers/crypto/chelsio/chtls/chtls.h index a53a0e6ba024..7725b6ee14ef 100644 --- a/drivers/crypto/chelsio/chtls/chtls.h +++ b/drivers/crypto/chelsio/chtls/chtls.h @@ -96,6 +96,10 @@ enum csk_flags { CSK_CONN_INLINE, /* Connection on HW */ }; +enum chtls_cdev_state { + CHTLS_CDEV_STATE_UP = 1 +}; + struct listen_ctx { struct sock *lsk; struct chtls_dev *cdev; @@ -146,6 +150,7 @@ struct chtls_dev { unsigned int send_page_order; int max_host_sndbuf; struct key_map kmap; + unsigned int cdev_state; }; struct chtls_hws { diff --git a/drivers/crypto/chelsio/chtls/chtls_main.c b/drivers/crypto/chelsio/chtls/chtls_main.c index 9b07f9165658..f59b044ebd25 100644 --- a/drivers/crypto/chelsio/chtls/chtls_main.c +++ b/drivers/crypto/chelsio/chtls/chtls_main.c @@ -160,6 +160,7 @@ static void chtls_register_dev(struct chtls_dev *cdev) tlsdev->hash = chtls_create_hash; tlsdev->unhash = chtls_destroy_hash; tls_register_device(&cdev->tlsdev); + cdev->cdev_state = CHTLS_CDEV_STATE_UP; } static void chtls_unregister_dev(struct chtls_dev *cdev) @@ -281,8 +282,10 @@ static void chtls_free_all_uld(void) struct chtls_dev *cdev, *tmp; mutex_lock(&cdev_mutex); - list_for_each_entry_safe(cdev, tmp, &cdev_list, list) - chtls_free_uld(cdev); + list_for_each_entry_safe(cdev, tmp, &cdev_list, list) { + if (cdev->cdev_state == CHTLS_CDEV_STATE_UP) + chtls_free_uld(cdev); + } mutex_unlock(&cdev_mutex); } From e5b954e8d11fdde55eed35017370a3a0d8837754 Mon Sep 17 00:00:00 2001 From: Dave Watson Date: Wed, 15 Aug 2018 10:29:42 -0700 Subject: [PATCH 0123/1762] crypto: aesni - Use unaligned loads from gcm_context_data A regression was reported bisecting to 1476db2d12 "Move HashKey computation from stack to gcm_context". That diff moved HashKey computation from the stack, which was explicitly aligned in the asm, to a struct provided from the C code, depending on AESNI_ALIGN_ATTR for alignment. It appears some compilers may not align this struct correctly, resulting in a crash on the movdqa instruction when attempting to encrypt or decrypt data. Fix by using unaligned loads for the HashKeys. On modern hardware there is no perf difference between the unaligned and aligned loads. All other accesses to gcm_context_data already use unaligned loads. Reported-by: Mauro Rossi Fixes: 1476db2d12 ("Move HashKey computation from stack to gcm_context") Cc: Signed-off-by: Dave Watson Signed-off-by: Herbert Xu --- arch/x86/crypto/aesni-intel_asm.S | 66 +++++++++++++++---------------- 1 file changed, 33 insertions(+), 33 deletions(-) diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S index e762ef417562..d27a50656aa1 100644 --- a/arch/x86/crypto/aesni-intel_asm.S +++ b/arch/x86/crypto/aesni-intel_asm.S @@ -223,34 +223,34 @@ ALL_F: .octa 0xffffffffffffffffffffffffffffffff pcmpeqd TWOONE(%rip), \TMP2 pand POLY(%rip), \TMP2 pxor \TMP2, \TMP3 - movdqa \TMP3, HashKey(%arg2) + movdqu \TMP3, HashKey(%arg2) movdqa \TMP3, \TMP5 pshufd $78, \TMP3, \TMP1 pxor \TMP3, \TMP1 - movdqa \TMP1, HashKey_k(%arg2) + movdqu \TMP1, HashKey_k(%arg2) GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7 # TMP5 = HashKey^2<<1 (mod poly) - movdqa \TMP5, HashKey_2(%arg2) + movdqu \TMP5, HashKey_2(%arg2) # HashKey_2 = HashKey^2<<1 (mod poly) pshufd $78, \TMP5, \TMP1 pxor \TMP5, \TMP1 - movdqa \TMP1, HashKey_2_k(%arg2) + movdqu \TMP1, HashKey_2_k(%arg2) GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7 # TMP5 = HashKey^3<<1 (mod poly) - movdqa \TMP5, HashKey_3(%arg2) + movdqu \TMP5, HashKey_3(%arg2) pshufd $78, \TMP5, \TMP1 pxor \TMP5, \TMP1 - movdqa \TMP1, HashKey_3_k(%arg2) + movdqu \TMP1, HashKey_3_k(%arg2) GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7 # TMP5 = HashKey^3<<1 (mod poly) - movdqa \TMP5, HashKey_4(%arg2) + movdqu \TMP5, HashKey_4(%arg2) pshufd $78, \TMP5, \TMP1 pxor \TMP5, \TMP1 - movdqa \TMP1, HashKey_4_k(%arg2) + movdqu \TMP1, HashKey_4_k(%arg2) .endm # GCM_INIT initializes a gcm_context struct to prepare for encoding/decoding. @@ -271,7 +271,7 @@ ALL_F: .octa 0xffffffffffffffffffffffffffffffff movdqu %xmm0, CurCount(%arg2) # ctx_data.current_counter = iv PRECOMPUTE \SUBKEY, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, - movdqa HashKey(%arg2), %xmm13 + movdqu HashKey(%arg2), %xmm13 CALC_AAD_HASH %xmm13, \AAD, \AADLEN, %xmm0, %xmm1, %xmm2, %xmm3, \ %xmm4, %xmm5, %xmm6 @@ -997,7 +997,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation pshufd $78, \XMM5, \TMP6 pxor \XMM5, \TMP6 paddd ONE(%rip), \XMM0 # INCR CNT - movdqa HashKey_4(%arg2), \TMP5 + movdqu HashKey_4(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP4 # TMP4 = a1*b1 movdqa \XMM0, \XMM1 paddd ONE(%rip), \XMM0 # INCR CNT @@ -1016,7 +1016,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation pxor (%arg1), \XMM2 pxor (%arg1), \XMM3 pxor (%arg1), \XMM4 - movdqa HashKey_4_k(%arg2), \TMP5 + movdqu HashKey_4_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP6 # TMP6 = (a1+a0)*(b1+b0) movaps 0x10(%arg1), \TMP1 AESENC \TMP1, \XMM1 # Round 1 @@ -1031,7 +1031,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation movdqa \XMM6, \TMP1 pshufd $78, \XMM6, \TMP2 pxor \XMM6, \TMP2 - movdqa HashKey_3(%arg2), \TMP5 + movdqu HashKey_3(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1 * b1 movaps 0x30(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 3 @@ -1044,7 +1044,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation AESENC \TMP3, \XMM2 AESENC \TMP3, \XMM3 AESENC \TMP3, \XMM4 - movdqa HashKey_3_k(%arg2), \TMP5 + movdqu HashKey_3_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movaps 0x50(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 5 @@ -1058,7 +1058,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation movdqa \XMM7, \TMP1 pshufd $78, \XMM7, \TMP2 pxor \XMM7, \TMP2 - movdqa HashKey_2(%arg2), \TMP5 + movdqu HashKey_2(%arg2), \TMP5 # Multiply TMP5 * HashKey using karatsuba @@ -1074,7 +1074,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation AESENC \TMP3, \XMM2 AESENC \TMP3, \XMM3 AESENC \TMP3, \XMM4 - movdqa HashKey_2_k(%arg2), \TMP5 + movdqu HashKey_2_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movaps 0x80(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 8 @@ -1092,7 +1092,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation movdqa \XMM8, \TMP1 pshufd $78, \XMM8, \TMP2 pxor \XMM8, \TMP2 - movdqa HashKey(%arg2), \TMP5 + movdqu HashKey(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 movaps 0x90(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 9 @@ -1121,7 +1121,7 @@ aes_loop_par_enc_done\@: AESENCLAST \TMP3, \XMM2 AESENCLAST \TMP3, \XMM3 AESENCLAST \TMP3, \XMM4 - movdqa HashKey_k(%arg2), \TMP5 + movdqu HashKey_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movdqu (%arg4,%r11,1), \TMP3 pxor \TMP3, \XMM1 # Ciphertext/Plaintext XOR EK @@ -1205,7 +1205,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation pshufd $78, \XMM5, \TMP6 pxor \XMM5, \TMP6 paddd ONE(%rip), \XMM0 # INCR CNT - movdqa HashKey_4(%arg2), \TMP5 + movdqu HashKey_4(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP4 # TMP4 = a1*b1 movdqa \XMM0, \XMM1 paddd ONE(%rip), \XMM0 # INCR CNT @@ -1224,7 +1224,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation pxor (%arg1), \XMM2 pxor (%arg1), \XMM3 pxor (%arg1), \XMM4 - movdqa HashKey_4_k(%arg2), \TMP5 + movdqu HashKey_4_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP6 # TMP6 = (a1+a0)*(b1+b0) movaps 0x10(%arg1), \TMP1 AESENC \TMP1, \XMM1 # Round 1 @@ -1239,7 +1239,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation movdqa \XMM6, \TMP1 pshufd $78, \XMM6, \TMP2 pxor \XMM6, \TMP2 - movdqa HashKey_3(%arg2), \TMP5 + movdqu HashKey_3(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1 * b1 movaps 0x30(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 3 @@ -1252,7 +1252,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation AESENC \TMP3, \XMM2 AESENC \TMP3, \XMM3 AESENC \TMP3, \XMM4 - movdqa HashKey_3_k(%arg2), \TMP5 + movdqu HashKey_3_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movaps 0x50(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 5 @@ -1266,7 +1266,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation movdqa \XMM7, \TMP1 pshufd $78, \XMM7, \TMP2 pxor \XMM7, \TMP2 - movdqa HashKey_2(%arg2), \TMP5 + movdqu HashKey_2(%arg2), \TMP5 # Multiply TMP5 * HashKey using karatsuba @@ -1282,7 +1282,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation AESENC \TMP3, \XMM2 AESENC \TMP3, \XMM3 AESENC \TMP3, \XMM4 - movdqa HashKey_2_k(%arg2), \TMP5 + movdqu HashKey_2_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movaps 0x80(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 8 @@ -1300,7 +1300,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation movdqa \XMM8, \TMP1 pshufd $78, \XMM8, \TMP2 pxor \XMM8, \TMP2 - movdqa HashKey(%arg2), \TMP5 + movdqu HashKey(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 movaps 0x90(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 9 @@ -1329,7 +1329,7 @@ aes_loop_par_dec_done\@: AESENCLAST \TMP3, \XMM2 AESENCLAST \TMP3, \XMM3 AESENCLAST \TMP3, \XMM4 - movdqa HashKey_k(%arg2), \TMP5 + movdqu HashKey_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movdqu (%arg4,%r11,1), \TMP3 pxor \TMP3, \XMM1 # Ciphertext/Plaintext XOR EK @@ -1405,10 +1405,10 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst movdqa \XMM1, \TMP6 pshufd $78, \XMM1, \TMP2 pxor \XMM1, \TMP2 - movdqa HashKey_4(%arg2), \TMP5 + movdqu HashKey_4(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP6 # TMP6 = a1*b1 PCLMULQDQ 0x00, \TMP5, \XMM1 # XMM1 = a0*b0 - movdqa HashKey_4_k(%arg2), \TMP4 + movdqu HashKey_4_k(%arg2), \TMP4 PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movdqa \XMM1, \XMMDst movdqa \TMP2, \XMM1 # result in TMP6, XMMDst, XMM1 @@ -1418,10 +1418,10 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst movdqa \XMM2, \TMP1 pshufd $78, \XMM2, \TMP2 pxor \XMM2, \TMP2 - movdqa HashKey_3(%arg2), \TMP5 + movdqu HashKey_3(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 PCLMULQDQ 0x00, \TMP5, \XMM2 # XMM2 = a0*b0 - movdqa HashKey_3_k(%arg2), \TMP4 + movdqu HashKey_3_k(%arg2), \TMP4 PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0) pxor \TMP1, \TMP6 pxor \XMM2, \XMMDst @@ -1433,10 +1433,10 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst movdqa \XMM3, \TMP1 pshufd $78, \XMM3, \TMP2 pxor \XMM3, \TMP2 - movdqa HashKey_2(%arg2), \TMP5 + movdqu HashKey_2(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 PCLMULQDQ 0x00, \TMP5, \XMM3 # XMM3 = a0*b0 - movdqa HashKey_2_k(%arg2), \TMP4 + movdqu HashKey_2_k(%arg2), \TMP4 PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0) pxor \TMP1, \TMP6 pxor \XMM3, \XMMDst @@ -1446,10 +1446,10 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst movdqa \XMM4, \TMP1 pshufd $78, \XMM4, \TMP2 pxor \XMM4, \TMP2 - movdqa HashKey(%arg2), \TMP5 + movdqu HashKey(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 PCLMULQDQ 0x00, \TMP5, \XMM4 # XMM4 = a0*b0 - movdqa HashKey_k(%arg2), \TMP4 + movdqu HashKey_k(%arg2), \TMP4 PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0) pxor \TMP1, \TMP6 pxor \XMM4, \XMMDst From c2b24c36e0a30ebd8fc7d068da7f0451f2c05c76 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Mon, 20 Aug 2018 16:58:34 +0200 Subject: [PATCH 0124/1762] crypto: arm64/aes-gcm-ce - fix scatterwalk API violation Commit 71e52c278c54 ("crypto: arm64/aes-ce-gcm - operate on two input blocks at a time") modified the granularity at which the AES/GCM code processes its input to allow subsequent changes to be applied that improve performance by using aggregation to process multiple input blocks at once. For this reason, it doubled the algorithm's 'chunksize' property to 2 x AES_BLOCK_SIZE, but retained the non-SIMD fallback path that processes a single block at a time. In some cases, this violates the skcipher scatterwalk API, by calling skcipher_walk_done() with a non-zero residue value for a chunk that is expected to be handled in its entirety. This results in a WARN_ON() to be hit by the TLS self test code, but is likely to break other user cases as well. Unfortunately, none of the current test cases exercises this exact code path at the moment. Fixes: 71e52c278c54 ("crypto: arm64/aes-ce-gcm - operate on two ...") Reported-by: Vakul Garg Signed-off-by: Ard Biesheuvel Tested-by: Vakul Garg Signed-off-by: Herbert Xu --- arch/arm64/crypto/ghash-ce-glue.c | 29 +++++++++++++++++++++++------ 1 file changed, 23 insertions(+), 6 deletions(-) diff --git a/arch/arm64/crypto/ghash-ce-glue.c b/arch/arm64/crypto/ghash-ce-glue.c index 6e9f33d14930..067d8937d5af 100644 --- a/arch/arm64/crypto/ghash-ce-glue.c +++ b/arch/arm64/crypto/ghash-ce-glue.c @@ -417,7 +417,7 @@ static int gcm_encrypt(struct aead_request *req) __aes_arm64_encrypt(ctx->aes_key.key_enc, tag, iv, nrounds); put_unaligned_be32(2, iv + GCM_IV_SIZE); - while (walk.nbytes >= AES_BLOCK_SIZE) { + while (walk.nbytes >= (2 * AES_BLOCK_SIZE)) { int blocks = walk.nbytes / AES_BLOCK_SIZE; u8 *dst = walk.dst.virt.addr; u8 *src = walk.src.virt.addr; @@ -437,11 +437,18 @@ static int gcm_encrypt(struct aead_request *req) NULL); err = skcipher_walk_done(&walk, - walk.nbytes % AES_BLOCK_SIZE); + walk.nbytes % (2 * AES_BLOCK_SIZE)); } - if (walk.nbytes) + if (walk.nbytes) { __aes_arm64_encrypt(ctx->aes_key.key_enc, ks, iv, nrounds); + if (walk.nbytes > AES_BLOCK_SIZE) { + crypto_inc(iv, AES_BLOCK_SIZE); + __aes_arm64_encrypt(ctx->aes_key.key_enc, + ks + AES_BLOCK_SIZE, iv, + nrounds); + } + } } /* handle the tail */ @@ -545,7 +552,7 @@ static int gcm_decrypt(struct aead_request *req) __aes_arm64_encrypt(ctx->aes_key.key_enc, tag, iv, nrounds); put_unaligned_be32(2, iv + GCM_IV_SIZE); - while (walk.nbytes >= AES_BLOCK_SIZE) { + while (walk.nbytes >= (2 * AES_BLOCK_SIZE)) { int blocks = walk.nbytes / AES_BLOCK_SIZE; u8 *dst = walk.dst.virt.addr; u8 *src = walk.src.virt.addr; @@ -564,11 +571,21 @@ static int gcm_decrypt(struct aead_request *req) } while (--blocks > 0); err = skcipher_walk_done(&walk, - walk.nbytes % AES_BLOCK_SIZE); + walk.nbytes % (2 * AES_BLOCK_SIZE)); } - if (walk.nbytes) + if (walk.nbytes) { + if (walk.nbytes > AES_BLOCK_SIZE) { + u8 *iv2 = iv + AES_BLOCK_SIZE; + + memcpy(iv2, iv, AES_BLOCK_SIZE); + crypto_inc(iv2, AES_BLOCK_SIZE); + + __aes_arm64_encrypt(ctx->aes_key.key_enc, iv2, + iv2, nrounds); + } __aes_arm64_encrypt(ctx->aes_key.key_enc, iv, iv, nrounds); + } } /* handle the tail */ From 0522236d4f9c5ab2e79889cb020d1acbe5da416e Mon Sep 17 00:00:00 2001 From: Ondrej Mosnacek Date: Wed, 22 Aug 2018 08:26:31 +0200 Subject: [PATCH 0125/1762] crypto: vmx - Fix sleep-in-atomic bugs This patch fixes sleep-in-atomic bugs in AES-CBC and AES-XTS VMX implementations. The problem is that the blkcipher_* functions should not be called in atomic context. The bugs can be reproduced via the AF_ALG interface by trying to encrypt/decrypt sufficiently large buffers (at least 64 KiB) using the VMX implementations of 'cbc(aes)' or 'xts(aes)'. Such operations then trigger BUG in crypto_yield(): [ 891.863680] BUG: sleeping function called from invalid context at include/crypto/algapi.h:424 [ 891.864622] in_atomic(): 1, irqs_disabled(): 0, pid: 12347, name: kcapi-enc [ 891.864739] 1 lock held by kcapi-enc/12347: [ 891.864811] #0: 00000000f5d42c46 (sk_lock-AF_ALG){+.+.}, at: skcipher_recvmsg+0x50/0x530 [ 891.865076] CPU: 5 PID: 12347 Comm: kcapi-enc Not tainted 4.19.0-0.rc0.git3.1.fc30.ppc64le #1 [ 891.865251] Call Trace: [ 891.865340] [c0000003387578c0] [c000000000d67ea4] dump_stack+0xe8/0x164 (unreliable) [ 891.865511] [c000000338757910] [c000000000172a58] ___might_sleep+0x2f8/0x310 [ 891.865679] [c000000338757990] [c0000000006bff74] blkcipher_walk_done+0x374/0x4a0 [ 891.865825] [c0000003387579e0] [d000000007e73e70] p8_aes_cbc_encrypt+0x1c8/0x260 [vmx_crypto] [ 891.865993] [c000000338757ad0] [c0000000006c0ee0] skcipher_encrypt_blkcipher+0x60/0x80 [ 891.866128] [c000000338757b10] [c0000000006ec504] skcipher_recvmsg+0x424/0x530 [ 891.866283] [c000000338757bd0] [c000000000b00654] sock_recvmsg+0x74/0xa0 [ 891.866403] [c000000338757c10] [c000000000b00f64] ___sys_recvmsg+0xf4/0x2f0 [ 891.866515] [c000000338757d90] [c000000000b02bb8] __sys_recvmsg+0x68/0xe0 [ 891.866631] [c000000338757e30] [c00000000000bbe4] system_call+0x5c/0x70 Fixes: 8c755ace357c ("crypto: vmx - Adding CBC routines for VMX module") Fixes: c07f5d3da643 ("crypto: vmx - Adding support for XTS") Cc: stable@vger.kernel.org Signed-off-by: Ondrej Mosnacek Signed-off-by: Herbert Xu --- drivers/crypto/vmx/aes_cbc.c | 30 ++++++++++++++---------------- drivers/crypto/vmx/aes_xts.c | 21 ++++++++++++++------- 2 files changed, 28 insertions(+), 23 deletions(-) diff --git a/drivers/crypto/vmx/aes_cbc.c b/drivers/crypto/vmx/aes_cbc.c index 5285ece4f33a..b71895871be3 100644 --- a/drivers/crypto/vmx/aes_cbc.c +++ b/drivers/crypto/vmx/aes_cbc.c @@ -107,24 +107,23 @@ static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc, ret = crypto_skcipher_encrypt(req); skcipher_request_zero(req); } else { - preempt_disable(); - pagefault_disable(); - enable_kernel_vsx(); - blkcipher_walk_init(&walk, dst, src, nbytes); ret = blkcipher_walk_virt(desc, &walk); while ((nbytes = walk.nbytes)) { + preempt_disable(); + pagefault_disable(); + enable_kernel_vsx(); aes_p8_cbc_encrypt(walk.src.virt.addr, walk.dst.virt.addr, nbytes & AES_BLOCK_MASK, &ctx->enc_key, walk.iv, 1); + disable_kernel_vsx(); + pagefault_enable(); + preempt_enable(); + nbytes &= AES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, &walk, nbytes); } - - disable_kernel_vsx(); - pagefault_enable(); - preempt_enable(); } return ret; @@ -147,24 +146,23 @@ static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc, ret = crypto_skcipher_decrypt(req); skcipher_request_zero(req); } else { - preempt_disable(); - pagefault_disable(); - enable_kernel_vsx(); - blkcipher_walk_init(&walk, dst, src, nbytes); ret = blkcipher_walk_virt(desc, &walk); while ((nbytes = walk.nbytes)) { + preempt_disable(); + pagefault_disable(); + enable_kernel_vsx(); aes_p8_cbc_encrypt(walk.src.virt.addr, walk.dst.virt.addr, nbytes & AES_BLOCK_MASK, &ctx->dec_key, walk.iv, 0); + disable_kernel_vsx(); + pagefault_enable(); + preempt_enable(); + nbytes &= AES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, &walk, nbytes); } - - disable_kernel_vsx(); - pagefault_enable(); - preempt_enable(); } return ret; diff --git a/drivers/crypto/vmx/aes_xts.c b/drivers/crypto/vmx/aes_xts.c index 8bd9aff0f55f..e9954a7d4694 100644 --- a/drivers/crypto/vmx/aes_xts.c +++ b/drivers/crypto/vmx/aes_xts.c @@ -116,32 +116,39 @@ static int p8_aes_xts_crypt(struct blkcipher_desc *desc, ret = enc? crypto_skcipher_encrypt(req) : crypto_skcipher_decrypt(req); skcipher_request_zero(req); } else { + blkcipher_walk_init(&walk, dst, src, nbytes); + + ret = blkcipher_walk_virt(desc, &walk); + preempt_disable(); pagefault_disable(); enable_kernel_vsx(); - blkcipher_walk_init(&walk, dst, src, nbytes); - - ret = blkcipher_walk_virt(desc, &walk); iv = walk.iv; memset(tweak, 0, AES_BLOCK_SIZE); aes_p8_encrypt(iv, tweak, &ctx->tweak_key); + disable_kernel_vsx(); + pagefault_enable(); + preempt_enable(); + while ((nbytes = walk.nbytes)) { + preempt_disable(); + pagefault_disable(); + enable_kernel_vsx(); if (enc) aes_p8_xts_encrypt(walk.src.virt.addr, walk.dst.virt.addr, nbytes & AES_BLOCK_MASK, &ctx->enc_key, NULL, tweak); else aes_p8_xts_decrypt(walk.src.virt.addr, walk.dst.virt.addr, nbytes & AES_BLOCK_MASK, &ctx->dec_key, NULL, tweak); + disable_kernel_vsx(); + pagefault_enable(); + preempt_enable(); nbytes &= AES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, &walk, nbytes); } - - disable_kernel_vsx(); - pagefault_enable(); - preempt_enable(); } return ret; } From 3d7c82060d1fe65bde4023aac41a0b1bd7718e07 Mon Sep 17 00:00:00 2001 From: Srikanth Jampala Date: Wed, 22 Aug 2018 12:40:52 +0530 Subject: [PATCH 0126/1762] crypto: cavium/nitrox - fix for command corruption in queue full case with backlog submissions. Earlier used to post the current command without checking queue full after backlog submissions. So, post the current command only after confirming the space in queue after backlog submissions. Maintain host write index instead of reading device registers to get the next free slot to post the command. Return -ENOSPC in queue full case. Signed-off-by: Srikanth Jampala Reviewed-by: Gadam Sreerama Tested-by: Jha, Chandan Signed-off-by: Herbert Xu --- drivers/crypto/cavium/nitrox/nitrox_dev.h | 3 +- drivers/crypto/cavium/nitrox/nitrox_lib.c | 1 + drivers/crypto/cavium/nitrox/nitrox_reqmgr.c | 57 +++++++++++--------- 3 files changed, 35 insertions(+), 26 deletions(-) diff --git a/drivers/crypto/cavium/nitrox/nitrox_dev.h b/drivers/crypto/cavium/nitrox/nitrox_dev.h index 9a476bb6d4c7..af596455b420 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_dev.h +++ b/drivers/crypto/cavium/nitrox/nitrox_dev.h @@ -35,6 +35,7 @@ struct nitrox_cmdq { /* requests in backlog queues */ atomic_t backlog_count; + int write_idx; /* command size 32B/64B */ u8 instr_size; u8 qno; @@ -87,7 +88,7 @@ struct nitrox_bh { struct bh_data *slc; }; -/* NITROX-5 driver state */ +/* NITROX-V driver state */ #define NITROX_UCODE_LOADED 0 #define NITROX_READY 1 diff --git a/drivers/crypto/cavium/nitrox/nitrox_lib.c b/drivers/crypto/cavium/nitrox/nitrox_lib.c index ebe267379ac9..4d31df07777f 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_lib.c +++ b/drivers/crypto/cavium/nitrox/nitrox_lib.c @@ -36,6 +36,7 @@ static int cmdq_common_init(struct nitrox_cmdq *cmdq) cmdq->head = PTR_ALIGN(cmdq->head_unaligned, PKT_IN_ALIGN); cmdq->dma = PTR_ALIGN(cmdq->dma_unaligned, PKT_IN_ALIGN); cmdq->qsize = (qsize + PKT_IN_ALIGN); + cmdq->write_idx = 0; spin_lock_init(&cmdq->response_lock); spin_lock_init(&cmdq->cmdq_lock); diff --git a/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c b/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c index deaefd532aaa..4a362fc22f62 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c +++ b/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c @@ -42,6 +42,16 @@ * Invalid flag options in AES-CCM IV. */ +static inline int incr_index(int index, int count, int max) +{ + if ((index + count) >= max) + index = index + count - max; + else + index += count; + + return index; +} + /** * dma_free_sglist - unmap and free the sg lists. * @ndev: N5 device @@ -426,30 +436,29 @@ static void post_se_instr(struct nitrox_softreq *sr, struct nitrox_cmdq *cmdq) { struct nitrox_device *ndev = sr->ndev; - union nps_pkt_in_instr_baoff_dbell pkt_in_baoff_dbell; - u64 offset; + int idx; u8 *ent; spin_lock_bh(&cmdq->cmdq_lock); - /* get the next write offset */ - offset = NPS_PKT_IN_INSTR_BAOFF_DBELLX(cmdq->qno); - pkt_in_baoff_dbell.value = nitrox_read_csr(ndev, offset); + idx = cmdq->write_idx; /* copy the instruction */ - ent = cmdq->head + pkt_in_baoff_dbell.s.aoff; + ent = cmdq->head + (idx * cmdq->instr_size); memcpy(ent, &sr->instr, cmdq->instr_size); - /* flush the command queue updates */ - dma_wmb(); - sr->tstamp = jiffies; atomic_set(&sr->status, REQ_POSTED); response_list_add(sr, cmdq); + sr->tstamp = jiffies; + /* flush the command queue updates */ + dma_wmb(); /* Ring doorbell with count 1 */ writeq(1, cmdq->dbell_csr_addr); /* orders the doorbell rings */ mmiowb(); + cmdq->write_idx = incr_index(idx, 1, ndev->qlen); + spin_unlock_bh(&cmdq->cmdq_lock); } @@ -459,6 +468,9 @@ static int post_backlog_cmds(struct nitrox_cmdq *cmdq) struct nitrox_softreq *sr, *tmp; int ret = 0; + if (!atomic_read(&cmdq->backlog_count)) + return 0; + spin_lock_bh(&cmdq->backlog_lock); list_for_each_entry_safe(sr, tmp, &cmdq->backlog_head, backlog) { @@ -466,7 +478,7 @@ static int post_backlog_cmds(struct nitrox_cmdq *cmdq) /* submit until space available */ if (unlikely(cmdq_full(cmdq, ndev->qlen))) { - ret = -EBUSY; + ret = -ENOSPC; break; } /* delete from backlog list */ @@ -491,23 +503,20 @@ static int nitrox_enqueue_request(struct nitrox_softreq *sr) { struct nitrox_cmdq *cmdq = sr->cmdq; struct nitrox_device *ndev = sr->ndev; - int ret = -EBUSY; + + /* try to post backlog requests */ + post_backlog_cmds(cmdq); if (unlikely(cmdq_full(cmdq, ndev->qlen))) { if (!(sr->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) - return -EAGAIN; - + return -ENOSPC; + /* add to backlog list */ backlog_list_add(sr, cmdq); - } else { - ret = post_backlog_cmds(cmdq); - if (ret) { - backlog_list_add(sr, cmdq); - return ret; - } - post_se_instr(sr, cmdq); - ret = -EINPROGRESS; + return -EBUSY; } - return ret; + post_se_instr(sr, cmdq); + + return -EINPROGRESS; } /** @@ -624,11 +633,9 @@ int nitrox_process_se_request(struct nitrox_device *ndev, */ sr->instr.fdata[0] = *((u64 *)&req->gph); sr->instr.fdata[1] = 0; - /* flush the soft_req changes before posting the cmd */ - wmb(); ret = nitrox_enqueue_request(sr); - if (ret == -EAGAIN) + if (ret == -ENOSPC) goto send_fail; return ret; From 602b74eda81311dbdb5dbab08c30f789f648ebdc Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Fri, 24 Aug 2018 15:41:35 +0300 Subject: [PATCH 0127/1762] mlxsw: spectrum_switchdev: Do not leak RIFs when removing bridge When a bridge device is removed, the VLANs are flushed from each configured port. This causes the ports to decrement the reference count on the associated FIDs (filtering identifier). If the reference count of a FID is 1 and it has a RIF (router interface), then this RIF is destroyed. However, if no port is member in the VLAN for which a RIF exists, then the RIF will continue to exist after the removal of the bridge. To reproduce: # ip link add name br0 type bridge vlan_filtering 1 # ip link set dev swp1 master br0 # ip link add link br0 name br0.10 type vlan id 10 # ip address add 192.0.2.0/24 dev br0.10 # ip link del dev br0 The RIF associated with br0.10 continues to exist. Fix this by iterating over all the bridge device uppers when it is destroyed and take care of destroying their RIFs. Fixes: 99f44bb3527b ("mlxsw: spectrum: Enable L3 interfaces on top of bridge devices") Signed-off-by: Ido Schimmel Reviewed-by: Petr Machata Signed-off-by: David S. Miller --- .../net/ethernet/mellanox/mlxsw/spectrum.h | 2 ++ .../ethernet/mellanox/mlxsw/spectrum_router.c | 11 ++++++++++ .../mellanox/mlxsw/spectrum_switchdev.c | 20 +++++++++++++++++++ 3 files changed, 33 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h index 3ae930196741..3cdb7aca90b7 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@ -414,6 +414,8 @@ mlxsw_sp_netdevice_ipip_ul_event(struct mlxsw_sp *mlxsw_sp, void mlxsw_sp_port_vlan_router_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan); void mlxsw_sp_rif_destroy(struct mlxsw_sp_rif *rif); +void mlxsw_sp_rif_destroy_by_dev(struct mlxsw_sp *mlxsw_sp, + struct net_device *dev); /* spectrum_kvdl.c */ enum mlxsw_sp_kvdl_entry_type { diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index 3a96307f51b0..2ab9cf25a08a 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -6234,6 +6234,17 @@ void mlxsw_sp_rif_destroy(struct mlxsw_sp_rif *rif) mlxsw_sp_vr_put(mlxsw_sp, vr); } +void mlxsw_sp_rif_destroy_by_dev(struct mlxsw_sp *mlxsw_sp, + struct net_device *dev) +{ + struct mlxsw_sp_rif *rif; + + rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev); + if (!rif) + return; + mlxsw_sp_rif_destroy(rif); +} + static void mlxsw_sp_rif_subport_params_init(struct mlxsw_sp_rif_params *params, struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c index 0d8444aaba01..db715da7bab7 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c @@ -127,6 +127,24 @@ bool mlxsw_sp_bridge_device_is_offloaded(const struct mlxsw_sp *mlxsw_sp, return !!mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); } +static int mlxsw_sp_bridge_device_upper_rif_destroy(struct net_device *dev, + void *data) +{ + struct mlxsw_sp *mlxsw_sp = data; + + mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, dev); + return 0; +} + +static void mlxsw_sp_bridge_device_rifs_destroy(struct mlxsw_sp *mlxsw_sp, + struct net_device *dev) +{ + mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, dev); + netdev_walk_all_upper_dev_rcu(dev, + mlxsw_sp_bridge_device_upper_rif_destroy, + mlxsw_sp); +} + static struct mlxsw_sp_bridge_device * mlxsw_sp_bridge_device_create(struct mlxsw_sp_bridge *bridge, struct net_device *br_dev) @@ -165,6 +183,8 @@ static void mlxsw_sp_bridge_device_destroy(struct mlxsw_sp_bridge *bridge, struct mlxsw_sp_bridge_device *bridge_device) { + mlxsw_sp_bridge_device_rifs_destroy(bridge->mlxsw_sp, + bridge_device->dev); list_del(&bridge_device->list); if (bridge_device->vlan_enabled) bridge->vlan_enabled_exists = false; From ab5f11055fdf8dfc3ddbd89e8e3cc550de41d1d3 Mon Sep 17 00:00:00 2001 From: Ahmad Fatoum Date: Tue, 21 Aug 2018 17:35:48 +0200 Subject: [PATCH 0128/1762] net: macb: Fix regression breaking non-MDIO fixed-link PHYs commit 739de9a1563a ("net: macb: Reorganize macb_mii bringup") broke initializing macb on the EVB-KSZ9477 eval board. There, of_mdiobus_register was called even for the fixed-link representing the RGMII-link to the switch with the result that the driver attempts to enumerate PHYs on a non-existent MDIO bus: libphy: MACB_mii_bus: probed mdio_bus f0028000.ethernet-ffffffff: fixed-link has invalid PHY address mdio_bus f0028000.ethernet-ffffffff: scan phy fixed-link at address 0 [snip] mdio_bus f0028000.ethernet-ffffffff: scan phy fixed-link at address 31 The "MDIO" bus registration succeeds regardless, having claimed the reset GPIO, and calling of_phy_register_fixed_link later on fails because it tries to claim the same GPIO: macb f0028000.ethernet: broken fixed-link specification Fix this by registering the fixed-link before calling mdiobus_register. Fixes: 739de9a1563a ("net: macb: Reorganize macb_mii bringup") Signed-off-by: Ahmad Fatoum Signed-off-by: David S. Miller --- drivers/net/ethernet/cadence/macb_main.c | 27 +++++++++++++++--------- 1 file changed, 17 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index dc09f9a8a49b..f46b854d34b5 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -482,11 +482,6 @@ static int macb_mii_probe(struct net_device *dev) if (np) { if (of_phy_is_fixed_link(np)) { - if (of_phy_register_fixed_link(np) < 0) { - dev_err(&bp->pdev->dev, - "broken fixed-link specification\n"); - return -ENODEV; - } bp->phy_node = of_node_get(np); } else { bp->phy_node = of_parse_phandle(np, "phy-handle", 0); @@ -569,7 +564,7 @@ static int macb_mii_init(struct macb *bp) { struct macb_platform_data *pdata; struct device_node *np; - int err; + int err = -ENXIO; /* Enable management port */ macb_writel(bp, NCR, MACB_BIT(MPE)); @@ -592,12 +587,23 @@ static int macb_mii_init(struct macb *bp) dev_set_drvdata(&bp->dev->dev, bp->mii_bus); np = bp->pdev->dev.of_node; - if (pdata) - bp->mii_bus->phy_mask = pdata->phy_mask; + if (np && of_phy_is_fixed_link(np)) { + if (of_phy_register_fixed_link(np) < 0) { + dev_err(&bp->pdev->dev, + "broken fixed-link specification %pOF\n", np); + goto err_out_free_mdiobus; + } + + err = mdiobus_register(bp->mii_bus); + } else { + if (pdata) + bp->mii_bus->phy_mask = pdata->phy_mask; + + err = of_mdiobus_register(bp->mii_bus, np); + } - err = of_mdiobus_register(bp->mii_bus, np); if (err) - goto err_out_free_mdiobus; + goto err_out_free_fixed_link; err = macb_mii_probe(bp->dev); if (err) @@ -607,6 +613,7 @@ static int macb_mii_init(struct macb *bp) err_out_unregister_bus: mdiobus_unregister(bp->mii_bus); +err_out_free_fixed_link: if (np && of_phy_is_fixed_link(np)) of_phy_deregister_fixed_link(np); err_out_free_mdiobus: From f7b9e8e111e0ce04ed7d1a1cb5b01b6e57775708 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 22 Aug 2018 15:27:23 +0200 Subject: [PATCH 0129/1762] Revert "net: stmmac: fix build failure due to missing COMMON_CLK dependency" This reverts commit bde4975310eb1982bd0bbff673989052d92fd481. All legacy clock implementations now implement clk_set_rate() (Some implementations may be dummies, though). Signed-off-by: Geert Uytterhoeven Acked-by: Arnd Bergmann Acked-by: Jose Abreu Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/Kconfig | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig index edf20361ea5f..bf4acebb6bcd 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -33,7 +33,7 @@ config DWMAC_DWC_QOS_ETH select PHYLIB select CRC32 select MII - depends on OF && COMMON_CLK && HAS_DMA + depends on OF && HAS_DMA help Support for chips using the snps,dwc-qos-ethernet.txt DT binding. @@ -57,7 +57,7 @@ config DWMAC_ANARION config DWMAC_IPQ806X tristate "QCA IPQ806x DWMAC support" default ARCH_QCOM - depends on OF && COMMON_CLK && (ARCH_QCOM || COMPILE_TEST) + depends on OF && (ARCH_QCOM || COMPILE_TEST) select MFD_SYSCON help Support for QCA IPQ806X DWMAC Ethernet. @@ -100,7 +100,7 @@ config DWMAC_OXNAS config DWMAC_ROCKCHIP tristate "Rockchip dwmac support" default ARCH_ROCKCHIP - depends on OF && COMMON_CLK && (ARCH_ROCKCHIP || COMPILE_TEST) + depends on OF && (ARCH_ROCKCHIP || COMPILE_TEST) select MFD_SYSCON help Support for Ethernet controller on Rockchip RK3288 SoC. @@ -123,7 +123,7 @@ config DWMAC_SOCFPGA config DWMAC_STI tristate "STi GMAC support" default ARCH_STI - depends on OF && COMMON_CLK && (ARCH_STI || COMPILE_TEST) + depends on OF && (ARCH_STI || COMPILE_TEST) select MFD_SYSCON ---help--- Support for ethernet controller on STi SOCs. @@ -147,7 +147,7 @@ config DWMAC_STM32 config DWMAC_SUNXI tristate "Allwinner GMAC support" default ARCH_SUNXI - depends on OF && COMMON_CLK && (ARCH_SUNXI || COMPILE_TEST) + depends on OF && (ARCH_SUNXI || COMPILE_TEST) ---help--- Support for Allwinner A20/A31 GMAC ethernet controllers. From 0da70f808029476001109b6cb076737bc04cea2e Mon Sep 17 00:00:00 2001 From: Anssi Hannula Date: Thu, 23 Aug 2018 10:45:22 +0300 Subject: [PATCH 0130/1762] net: macb: do not disable MDIO bus at open/close time macb_reset_hw() is called from macb_close() and indirectly from macb_open(). macb_reset_hw() zeroes the NCR register, including the MPE (Management Port Enable) bit. This will prevent accessing any other PHYs for other Ethernet MACs on the MDIO bus, which remains registered at macb_reset_hw() time, until macb_init_hw() is called from macb_open() which sets the MPE bit again. I.e. currently the MDIO bus has a short disruption at open time and is disabled at close time until the interface is opened again. Fix that by only touching the RE and TE bits when enabling and disabling RX/TX. v2: Make macb_init_hw() NCR write a single statement. Fixes: 6c36a7074436 ("macb: Use generic PHY layer") Signed-off-by: Anssi Hannula Reviewed-by: Claudiu Beznea Tested-by: Claudiu Beznea Signed-off-by: David S. Miller --- drivers/net/ethernet/cadence/macb_main.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index f46b854d34b5..c6707ea2d751 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -2035,14 +2035,17 @@ static void macb_reset_hw(struct macb *bp) { struct macb_queue *queue; unsigned int q; + u32 ctrl = macb_readl(bp, NCR); /* Disable RX and TX (XXX: Should we halt the transmission * more gracefully?) */ - macb_writel(bp, NCR, 0); + ctrl &= ~(MACB_BIT(RE) | MACB_BIT(TE)); /* Clear the stats registers (XXX: Update stats first?) */ - macb_writel(bp, NCR, MACB_BIT(CLRSTAT)); + ctrl |= MACB_BIT(CLRSTAT); + + macb_writel(bp, NCR, ctrl); /* Clear all status flags */ macb_writel(bp, TSR, -1); @@ -2230,7 +2233,7 @@ static void macb_init_hw(struct macb *bp) } /* Enable TX and RX */ - macb_writel(bp, NCR, MACB_BIT(RE) | MACB_BIT(TE) | MACB_BIT(MPE)); + macb_writel(bp, NCR, macb_readl(bp, NCR) | MACB_BIT(RE) | MACB_BIT(TE)); } /* The hash address register is 64 bits long and takes up two From 6750c87074c5b534d82fdaabb1deb45b8f1f57de Mon Sep 17 00:00:00 2001 From: Manish Chopra Date: Thu, 23 Aug 2018 13:20:52 -0700 Subject: [PATCH 0131/1762] qlge: Fix netdev features configuration. qlge_fix_features() is not supposed to modify hardware or driver state, rather it is supposed to only fix requested fetures bits. Currently qlge_fix_features() also goes for interface down and up unnecessarily if there is not even any change in features set. This patch changes/fixes following - 1) Move reload of interface or device re-config from qlge_fix_features() to qlge_set_features(). 2) Reload of interface in qlge_set_features() only if relevant feature bit (NETIF_F_HW_VLAN_CTAG_RX) is changed. 3) Get rid of qlge_fix_features() since driver is not really required to fix any features bit. Signed-off-by: Manish Reviewed-by: Benjamin Poirier Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlge/qlge_main.c | 23 +++++++------------- 1 file changed, 8 insertions(+), 15 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c index 353f1c129af1..059ba9429e51 100644 --- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c +++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c @@ -2384,26 +2384,20 @@ static int qlge_update_hw_vlan_features(struct net_device *ndev, return status; } -static netdev_features_t qlge_fix_features(struct net_device *ndev, - netdev_features_t features) -{ - int err; - - /* Update the behavior of vlan accel in the adapter */ - err = qlge_update_hw_vlan_features(ndev, features); - if (err) - return err; - - return features; -} - static int qlge_set_features(struct net_device *ndev, netdev_features_t features) { netdev_features_t changed = ndev->features ^ features; + int err; + + if (changed & NETIF_F_HW_VLAN_CTAG_RX) { + /* Update the behavior of vlan accel in the adapter */ + err = qlge_update_hw_vlan_features(ndev, features); + if (err) + return err; - if (changed & NETIF_F_HW_VLAN_CTAG_RX) qlge_vlan_mode(ndev, features); + } return 0; } @@ -4719,7 +4713,6 @@ static const struct net_device_ops qlge_netdev_ops = { .ndo_set_mac_address = qlge_set_mac_address, .ndo_validate_addr = eth_validate_addr, .ndo_tx_timeout = qlge_tx_timeout, - .ndo_fix_features = qlge_fix_features, .ndo_set_features = qlge_set_features, .ndo_vlan_rx_add_vid = qlge_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = qlge_vlan_rx_kill_vid, From 2d66f997f0545c8f7fc5cf0b49af1decb35170e7 Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Fri, 24 Aug 2018 16:53:13 +0800 Subject: [PATCH 0132/1762] vhost: correctly check the iova range when waking virtqueue We don't wakeup the virtqueue if the first byte of pending iova range is the last byte of the range we just got updated. This will lead a virtqueue to wait for IOTLB updating forever. Fixing by correct the check and wake up the virtqueue in this case. Fixes: 6b1e6cc7855b ("vhost: new device IOTLB API") Reported-by: Peter Xu Signed-off-by: Jason Wang Reviewed-by: Peter Xu Tested-by: Peter Xu Acked-by: Michael S. Tsirkin Signed-off-by: David S. Miller --- drivers/vhost/vhost.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 96c1d8400822..b13c6b4b2c66 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -952,7 +952,7 @@ static void vhost_iotlb_notify_vq(struct vhost_dev *d, list_for_each_entry_safe(node, n, &d->pending_list, node) { struct vhost_iotlb_msg *vq_msg = &node->msg.iotlb; if (msg->iova <= vq_msg->iova && - msg->iova + msg->size - 1 > vq_msg->iova && + msg->iova + msg->size - 1 >= vq_msg->iova && vq_msg->type == VHOST_IOTLB_MISS) { vhost_poll_queue(&node->vq->poll); list_del(&node->node); From e75d039a54090470b7a42e803fd4f9398390f907 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Fri, 24 Aug 2018 12:18:30 +0100 Subject: [PATCH 0133/1762] qed: fix spelling mistake "comparsion" -> "comparison" Trivial fix to spelling mistake in DP_ERR error message Signed-off-by: Colin Ian King Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_init_ops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_init_ops.c b/drivers/net/ethernet/qlogic/qed/qed_init_ops.c index d9ab5add27a8..34193c2f1699 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_init_ops.c +++ b/drivers/net/ethernet/qlogic/qed/qed_init_ops.c @@ -407,7 +407,7 @@ static void qed_init_cmd_rd(struct qed_hwfn *p_hwfn, if (i == QED_INIT_MAX_POLL_COUNT) { DP_ERR(p_hwfn, - "Timeout when polling reg: 0x%08x [ Waiting-for: %08x Got: %08x (comparsion %08x)]\n", + "Timeout when polling reg: 0x%08x [ Waiting-for: %08x Got: %08x (comparison %08x)]\n", addr, le32_to_cpu(cmd->expected_val), val, le32_to_cpu(cmd->op_data)); } From 98c8f125fd8a6240ea343c1aa50a1be9047791b8 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Sat, 25 Aug 2018 22:58:01 -0700 Subject: [PATCH 0134/1762] net: sched: Fix memory exposure from short TCA_U32_SEL Via u32_change(), TCA_U32_SEL has an unspecified type in the netlink policy, so max length isn't enforced, only minimum. This means nkeys (from userspace) was being trusted without checking the actual size of nla_len(), which could lead to a memory over-read, and ultimately an exposure via a call to u32_dump(). Reachability is CAP_NET_ADMIN within a namespace. Reported-by: Al Viro Cc: Jamal Hadi Salim Cc: Cong Wang Cc: Jiri Pirko Cc: "David S. Miller" Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook Acked-by: Jamal Hadi Salim Signed-off-by: David S. Miller --- net/sched/cls_u32.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c index d5d2a6dc3921..f218ccf1e2d9 100644 --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -914,6 +914,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb, struct nlattr *opt = tca[TCA_OPTIONS]; struct nlattr *tb[TCA_U32_MAX + 1]; u32 htid, flags = 0; + size_t sel_size; int err; #ifdef CONFIG_CLS_U32_PERF size_t size; @@ -1076,8 +1077,13 @@ static int u32_change(struct net *net, struct sk_buff *in_skb, } s = nla_data(tb[TCA_U32_SEL]); + sel_size = struct_size(s, keys, s->nkeys); + if (nla_len(tb[TCA_U32_SEL]) < sel_size) { + err = -EINVAL; + goto erridr; + } - n = kzalloc(sizeof(*n) + s->nkeys*sizeof(struct tc_u32_key), GFP_KERNEL); + n = kzalloc(offsetof(typeof(*n), sel) + sel_size, GFP_KERNEL); if (n == NULL) { err = -ENOBUFS; goto erridr; @@ -1092,7 +1098,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb, } #endif - memcpy(&n->sel, s, sizeof(*s) + s->nkeys*sizeof(struct tc_u32_key)); + memcpy(&n->sel, s, sel_size); RCU_INIT_POINTER(n->ht_up, ht); n->handle = handle; n->fshift = s->hmask ? ffs(ntohl(s->hmask)) - 1 : 0; From 3ad867001c91657c46dcf6656d52eb6080286fd5 Mon Sep 17 00:00:00 2001 From: Lothar Felten Date: Tue, 14 Aug 2018 09:09:37 +0200 Subject: [PATCH 0135/1762] hwmon: (ina2xx) fix sysfs shunt resistor read access fix the sysfs shunt resistor read access: return the shunt resistor value, not the calibration register contents. update email address Signed-off-by: Lothar Felten Signed-off-by: Guenter Roeck --- Documentation/hwmon/ina2xx | 2 +- drivers/hwmon/ina2xx.c | 13 +++++++++++-- include/linux/platform_data/ina2xx.h | 2 +- 3 files changed, 13 insertions(+), 4 deletions(-) diff --git a/Documentation/hwmon/ina2xx b/Documentation/hwmon/ina2xx index 72d16f08e431..b8df81f6d6bc 100644 --- a/Documentation/hwmon/ina2xx +++ b/Documentation/hwmon/ina2xx @@ -32,7 +32,7 @@ Supported chips: Datasheet: Publicly available at the Texas Instruments website http://www.ti.com/ -Author: Lothar Felten +Author: Lothar Felten Description ----------- diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c index e9e6aeabbf84..71d3445ba869 100644 --- a/drivers/hwmon/ina2xx.c +++ b/drivers/hwmon/ina2xx.c @@ -17,7 +17,7 @@ * Bi-directional Current/Power Monitor with I2C Interface * Datasheet: http://www.ti.com/product/ina230 * - * Copyright (C) 2012 Lothar Felten + * Copyright (C) 2012 Lothar Felten * Thanks to Jan Volkering * * This program is free software; you can redistribute it and/or modify @@ -329,6 +329,15 @@ static int ina2xx_set_shunt(struct ina2xx_data *data, long val) return 0; } +static ssize_t ina2xx_show_shunt(struct device *dev, + struct device_attribute *da, + char *buf) +{ + struct ina2xx_data *data = dev_get_drvdata(dev); + + return snprintf(buf, PAGE_SIZE, "%li\n", data->rshunt); +} + static ssize_t ina2xx_store_shunt(struct device *dev, struct device_attribute *da, const char *buf, size_t count) @@ -403,7 +412,7 @@ static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO, ina2xx_show_value, NULL, /* shunt resistance */ static SENSOR_DEVICE_ATTR(shunt_resistor, S_IRUGO | S_IWUSR, - ina2xx_show_value, ina2xx_store_shunt, + ina2xx_show_shunt, ina2xx_store_shunt, INA2XX_CALIBRATION); /* update interval (ina226 only) */ diff --git a/include/linux/platform_data/ina2xx.h b/include/linux/platform_data/ina2xx.h index 9abc0ca7259b..9f0aa1b48c78 100644 --- a/include/linux/platform_data/ina2xx.h +++ b/include/linux/platform_data/ina2xx.h @@ -1,7 +1,7 @@ /* * Driver for Texas Instruments INA219, INA226 power monitor chips * - * Copyright (C) 2012 Lothar Felten + * Copyright (C) 2012 Lothar Felten * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as From 9d19371df50a73301aec66a479b490587e889055 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 14 Aug 2018 12:12:36 +0300 Subject: [PATCH 0136/1762] hwmon: (adt7475) Potential error pointer dereferences The adt7475_update_device() function returns error pointers. The problem is that in show_pwmfreq() we dereference it before the check. And then in pwm_use_point2_pwm_at_crit_show() there isn't a check at all. I don't know if it's required, but it silences a static checker warning and it's doesn't hurt anything to check. Signed-off-by: Dan Carpenter Reviewed-by: Tokunori Ikegami Signed-off-by: Guenter Roeck --- drivers/hwmon/adt7475.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c index 90837f7c7d0f..16045149f3db 100644 --- a/drivers/hwmon/adt7475.c +++ b/drivers/hwmon/adt7475.c @@ -962,13 +962,14 @@ static ssize_t show_pwmfreq(struct device *dev, struct device_attribute *attr, { struct adt7475_data *data = adt7475_update_device(dev); struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); - int i = clamp_val(data->range[sattr->index] & 0xf, 0, - ARRAY_SIZE(pwmfreq_table) - 1); + int idx; if (IS_ERR(data)) return PTR_ERR(data); + idx = clamp_val(data->range[sattr->index] & 0xf, 0, + ARRAY_SIZE(pwmfreq_table) - 1); - return sprintf(buf, "%d\n", pwmfreq_table[i]); + return sprintf(buf, "%d\n", pwmfreq_table[idx]); } static ssize_t set_pwmfreq(struct device *dev, struct device_attribute *attr, @@ -1004,6 +1005,10 @@ static ssize_t pwm_use_point2_pwm_at_crit_show(struct device *dev, char *buf) { struct adt7475_data *data = adt7475_update_device(dev); + + if (IS_ERR(data)) + return PTR_ERR(data); + return sprintf(buf, "%d\n", !!(data->config4 & CONFIG4_MAXDUTY)); } From f196dec6d50abb2e65fb54a0621b2f1b4d922995 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 14 Aug 2018 13:07:47 +0300 Subject: [PATCH 0137/1762] hwmon: (adt7475) Make adt7475_read_word() return errors The adt7475_read_word() function was meant to return negative error codes on failure. Signed-off-by: Dan Carpenter Reviewed-by: Tokunori Ikegami Signed-off-by: Guenter Roeck --- drivers/hwmon/adt7475.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c index 16045149f3db..f4c7516eb989 100644 --- a/drivers/hwmon/adt7475.c +++ b/drivers/hwmon/adt7475.c @@ -302,14 +302,18 @@ static inline u16 volt2reg(int channel, long volt, u8 bypass_attn) return clamp_val(reg, 0, 1023) & (0xff << 2); } -static u16 adt7475_read_word(struct i2c_client *client, int reg) +static int adt7475_read_word(struct i2c_client *client, int reg) { - u16 val; + int val1, val2; - val = i2c_smbus_read_byte_data(client, reg); - val |= (i2c_smbus_read_byte_data(client, reg + 1) << 8); + val1 = i2c_smbus_read_byte_data(client, reg); + if (val1 < 0) + return val1; + val2 = i2c_smbus_read_byte_data(client, reg + 1); + if (val2 < 0) + return val2; - return val; + return val1 | (val2 << 8); } static void adt7475_write_word(struct i2c_client *client, int reg, u16 val) From d49dbfade96d5b0863ca8a90122a805edd5ef50a Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Wed, 15 Aug 2018 08:14:37 -0500 Subject: [PATCH 0138/1762] hwmon: (nct6775) Fix potential Spectre v1 val can be indirectly controlled by user-space, hence leading to a potential exploitation of the Spectre variant 1 vulnerability. This issue was detected with the help of Smatch: vers/hwmon/nct6775.c:2698 store_pwm_weight_temp_sel() warn: potential spectre issue 'data->temp_src' [r] Fix this by sanitizing val before using it to index data->temp_src Notice that given that speculation windows are large, the policy is to kill the speculation on the first load and not worry if it can be completed with a dependent load/store [1]. [1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2 Cc: stable@vger.kernel.org Signed-off-by: Gustavo A. R. Silva Signed-off-by: Guenter Roeck --- drivers/hwmon/nct6775.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index c6bd61e4695a..944f5b63aecd 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -63,6 +63,7 @@ #include #include #include +#include #include "lm75.h" #define USE_ALTERNATE @@ -2689,6 +2690,7 @@ store_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr, return err; if (val > NUM_TEMP) return -EINVAL; + val = array_index_nospec(val, NUM_TEMP + 1); if (val && (!(data->have_temp & BIT(val - 1)) || !data->temp_src[val - 1])) return -EINVAL; From c7c09dc187f0323ad40b5b6c57a6db673a386a7f Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Fri, 24 Aug 2018 11:29:27 +0800 Subject: [PATCH 0139/1762] nios2: kconfig: remove duplicate DEBUG_STACK_USAGE symbol defintions DEBUG_STACK_USAGE is already defined in lib/Kconfig.debug Signed-off-by: Tobias Klauser Signed-off-by: Ley Foon Tan --- arch/nios2/Kconfig.debug | 9 --------- 1 file changed, 9 deletions(-) diff --git a/arch/nios2/Kconfig.debug b/arch/nios2/Kconfig.debug index 7a49f0d28d14..f1da8a7b17ff 100644 --- a/arch/nios2/Kconfig.debug +++ b/arch/nios2/Kconfig.debug @@ -3,15 +3,6 @@ config TRACE_IRQFLAGS_SUPPORT def_bool y -config DEBUG_STACK_USAGE - bool "Enable stack utilization instrumentation" - depends on DEBUG_KERNEL - help - Enables the display of the minimum amount of free stack which each - task has ever had available in the sysrq-T and sysrq-P debug output. - - This option will slow down process creation somewhat. - config EARLY_PRINTK bool "Activate early kernel debugging" default y From 2b7bd20d5605e0314d677ea21b462543e73e466c Mon Sep 17 00:00:00 2001 From: Souptick Joarder Date: Sat, 28 Jul 2018 19:08:45 +0530 Subject: [PATCH 0140/1762] drm/mediatek: Convert drm_atomic_helper_suspend/resume() convert drm_atomic_helper_suspend/resume() to use drm_mode_config_helper_suspend/resume(). Signed-off-by: Souptick Joarder Signed-off-by: Ajit Negi Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index 39721119713b..b68922a793cb 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -580,29 +580,24 @@ static int mtk_drm_sys_suspend(struct device *dev) { struct mtk_drm_private *private = dev_get_drvdata(dev); struct drm_device *drm = private->drm; + int ret; - drm_kms_helper_poll_disable(drm); - - private->suspend_state = drm_atomic_helper_suspend(drm); - if (IS_ERR(private->suspend_state)) { - drm_kms_helper_poll_enable(drm); - return PTR_ERR(private->suspend_state); - } - + ret = drm_mode_config_helper_suspend(drm); DRM_DEBUG_DRIVER("mtk_drm_sys_suspend\n"); - return 0; + + return ret; } static int mtk_drm_sys_resume(struct device *dev) { struct mtk_drm_private *private = dev_get_drvdata(dev); struct drm_device *drm = private->drm; + int ret; - drm_atomic_helper_resume(drm, private->suspend_state); - drm_kms_helper_poll_enable(drm); - + ret = drm_mode_config_helper_resume(drm); DRM_DEBUG_DRIVER("mtk_drm_sys_resume\n"); - return 0; + + return ret; } #endif From 8272806d21bf2a7fd74602cc7bade7d12f73ac4b Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Tue, 17 Jul 2018 10:35:18 +0200 Subject: [PATCH 0141/1762] drm/mediatek: Replace drm_dev_unref with drm_dev_put This patch unifies the naming of DRM functions for reference counting of struct drm_device. The resulting code is more aligned with the rest of the Linux kernel interfaces. Signed-off-by: Thomas Zimmermann Reviewed-by: Philipp Zabel Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index b68922a793cb..47ec604289b7 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -381,7 +381,7 @@ static int mtk_drm_bind(struct device *dev) err_deinit: mtk_drm_kms_deinit(drm); err_free: - drm_dev_unref(drm); + drm_dev_put(drm); return ret; } @@ -390,7 +390,7 @@ static void mtk_drm_unbind(struct device *dev) struct mtk_drm_private *private = dev_get_drvdata(dev); drm_dev_unregister(private->drm); - drm_dev_unref(private->drm); + drm_dev_put(private->drm); private->drm = NULL; } @@ -564,7 +564,7 @@ static int mtk_drm_remove(struct platform_device *pdev) drm_dev_unregister(drm); mtk_drm_kms_deinit(drm); - drm_dev_unref(drm); + drm_dev_put(drm); component_master_del(&pdev->dev, &mtk_drm_ops); pm_runtime_disable(&pdev->dev); From 29d32e466e98e03378878e95339334971d0fdaf4 Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:36 +0800 Subject: [PATCH 0142/1762] drm/mediatek: add connection from RDMA0 to DPI1 This patch add connection from RDMA0 to DPI1 Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c index 87e4191c250e..03e3628b5b0d 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c @@ -106,6 +106,7 @@ #define OVL1_MOUT_EN_COLOR1 0x1 #define GAMMA_MOUT_EN_RDMA1 0x1 #define RDMA0_SOUT_DPI0 0x2 +#define RDMA0_SOUT_DPI1 0x3 #define RDMA0_SOUT_DSI2 0x4 #define RDMA0_SOUT_DSI3 0x5 #define RDMA1_SOUT_DPI0 0x2 @@ -224,6 +225,9 @@ static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur, } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DPI0) { *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; value = RDMA0_SOUT_DPI0; + } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DPI1) { + *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; + value = RDMA0_SOUT_DPI1; } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI2) { *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; value = RDMA0_SOUT_DSI2; From 48d25d243bfb20a7230e9f226c560b71d989d962 Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:37 +0800 Subject: [PATCH 0143/1762] drm/mediatek: add connection from RDMA0 to DSI1 This patch add connection from RDMA0 to DSI1 Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c index 03e3628b5b0d..310d8482d5a0 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c @@ -107,6 +107,7 @@ #define GAMMA_MOUT_EN_RDMA1 0x1 #define RDMA0_SOUT_DPI0 0x2 #define RDMA0_SOUT_DPI1 0x3 +#define RDMA0_SOUT_DSI1 0x1 #define RDMA0_SOUT_DSI2 0x4 #define RDMA0_SOUT_DSI3 0x5 #define RDMA1_SOUT_DPI0 0x2 @@ -228,6 +229,9 @@ static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur, } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DPI1) { *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; value = RDMA0_SOUT_DPI1; + } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI1) { + *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; + value = RDMA0_SOUT_DSI1; } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI2) { *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN; value = RDMA0_SOUT_DSI2; From 0a14785ee32ad40458657edaf1025f71ebbc1147 Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:38 +0800 Subject: [PATCH 0144/1762] drm/mediatek: add connection from RDMA1 to DSI0 This patch add connection from RDMA1 to DSI0 Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c index 310d8482d5a0..31189fad8d4e 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c @@ -124,6 +124,7 @@ #define DPI0_SEL_IN_RDMA2 0x3 #define DPI1_SEL_IN_RDMA1 (0x1 << 8) #define DPI1_SEL_IN_RDMA2 (0x3 << 8) +#define DSI0_SEL_IN_RDMA1 0x1 #define DSI1_SEL_IN_RDMA1 0x1 #define DSI1_SEL_IN_RDMA2 0x4 #define DSI2_SEL_IN_RDMA1 (0x1 << 16) @@ -290,6 +291,9 @@ static unsigned int mtk_ddp_sel_in(enum mtk_ddp_comp_id cur, } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI1) { *addr = DISP_REG_CONFIG_DPI_SEL_IN; value = DPI1_SEL_IN_RDMA1; + } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI0) { + *addr = DISP_REG_CONFIG_DSIE_SEL_IN; + value = DSI0_SEL_IN_RDMA1; } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI1) { *addr = DISP_REG_CONFIG_DSIO_SEL_IN; value = DSI1_SEL_IN_RDMA1; From 85186efc2a5975801cd4ba03a9143305e474b645 Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:39 +0800 Subject: [PATCH 0145/1762] drm/mediatek: add connection from RDMA2 to DSI0 This patch add connection from RDMA2 to DSI0 Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c index 31189fad8d4e..3239f22785fd 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c @@ -125,6 +125,7 @@ #define DPI1_SEL_IN_RDMA1 (0x1 << 8) #define DPI1_SEL_IN_RDMA2 (0x3 << 8) #define DSI0_SEL_IN_RDMA1 0x1 +#define DSI0_SEL_IN_RDMA2 0x4 #define DSI1_SEL_IN_RDMA1 0x1 #define DSI1_SEL_IN_RDMA2 0x4 #define DSI2_SEL_IN_RDMA1 (0x1 << 16) @@ -309,6 +310,9 @@ static unsigned int mtk_ddp_sel_in(enum mtk_ddp_comp_id cur, } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI1) { *addr = DISP_REG_CONFIG_DPI_SEL_IN; value = DPI1_SEL_IN_RDMA2; + } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI0) { + *addr = DISP_REG_CONFIG_DSIE_SEL_IN; + value = DSI0_SEL_IN_RDMA2; } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI1) { *addr = DISP_REG_CONFIG_DSIE_SEL_IN; value = DSI1_SEL_IN_RDMA2; From 182add0b1b9170a1f8f2a049fe2e298222cf405a Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:40 +0800 Subject: [PATCH 0146/1762] drm/mediatek: add memory mode and layer_config for RDMA This patch add memory mode for RDMA and layer_config for RDMA If use RDMA to read data from memory, it should set memory mode to RDMA Layer config set the data address and pitch to RDMA from plane setting. Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c index 585943c81e1f..08866550740f 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c @@ -31,14 +31,20 @@ #define RDMA_REG_UPDATE_INT BIT(0) #define DISP_REG_RDMA_GLOBAL_CON 0x0010 #define RDMA_ENGINE_EN BIT(0) +#define RDMA_MODE_MEMORY BIT(1) #define DISP_REG_RDMA_SIZE_CON_0 0x0014 #define DISP_REG_RDMA_SIZE_CON_1 0x0018 #define DISP_REG_RDMA_TARGET_LINE 0x001c +#define DISP_RDMA_MEM_SRC_PITCH 0x002c +#define DISP_RDMA_MEM_GMC_SETTING_0 0x0030 #define DISP_REG_RDMA_FIFO_CON 0x0040 #define RDMA_FIFO_UNDERFLOW_EN BIT(31) #define RDMA_FIFO_PSEUDO_SIZE(bytes) (((bytes) / 16) << 16) #define RDMA_OUTPUT_VALID_FIFO_THRESHOLD(bytes) ((bytes) / 16) #define RDMA_FIFO_SIZE(rdma) ((rdma)->data->fifo_size) +#define DISP_RDMA_MEM_START_ADDR 0x0f00 + +#define RDMA_MEM_GMC 0x40402020 struct mtk_disp_rdma_data { unsigned int fifo_size; @@ -138,12 +144,27 @@ static void mtk_rdma_config(struct mtk_ddp_comp *comp, unsigned int width, writel(reg, comp->regs + DISP_REG_RDMA_FIFO_CON); } +static void mtk_rdma_layer_config(struct mtk_ddp_comp *comp, unsigned int idx, + struct mtk_plane_state *state) +{ + struct mtk_plane_pending_state *pending = &state->pending; + unsigned int addr = pending->addr; + unsigned int pitch = pending->pitch & 0xffff; + + writel_relaxed(addr, comp->regs + DISP_RDMA_MEM_START_ADDR); + writel_relaxed(pitch, comp->regs + DISP_RDMA_MEM_SRC_PITCH); + writel(RDMA_MEM_GMC, comp->regs + DISP_RDMA_MEM_GMC_SETTING_0); + rdma_update_bits(comp, DISP_REG_RDMA_GLOBAL_CON, + RDMA_MODE_MEMORY, RDMA_MODE_MEMORY); +} + static const struct mtk_ddp_comp_funcs mtk_disp_rdma_funcs = { .config = mtk_rdma_config, .start = mtk_rdma_start, .stop = mtk_rdma_stop, .enable_vblank = mtk_rdma_enable_vblank, .disable_vblank = mtk_rdma_disable_vblank, + .layer_config = mtk_rdma_layer_config, }; static int mtk_disp_rdma_bind(struct device *dev, struct device *master, From b428391ed6bd5e3cb8ea9d1738ef4bd16af6cdb2 Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:41 +0800 Subject: [PATCH 0147/1762] drm/mediatek: add RGB color format support for RDMA This patch add RGB color format support for RDMA, including RGB565, RGB888, RGBA8888 and ARGB8888. Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 45 ++++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c index 08866550740f..091e48e51501 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c @@ -35,6 +35,12 @@ #define DISP_REG_RDMA_SIZE_CON_0 0x0014 #define DISP_REG_RDMA_SIZE_CON_1 0x0018 #define DISP_REG_RDMA_TARGET_LINE 0x001c +#define DISP_RDMA_MEM_CON 0x0024 +#define MEM_MODE_INPUT_FORMAT_RGB565 (0x000 << 4) +#define MEM_MODE_INPUT_FORMAT_RGB888 (0x001 << 4) +#define MEM_MODE_INPUT_FORMAT_RGBA8888 (0x002 << 4) +#define MEM_MODE_INPUT_FORMAT_ARGB8888 (0x003 << 4) +#define MEM_MODE_INPUT_SWAP BIT(8) #define DISP_RDMA_MEM_SRC_PITCH 0x002c #define DISP_RDMA_MEM_GMC_SETTING_0 0x0030 #define DISP_REG_RDMA_FIFO_CON 0x0040 @@ -144,12 +150,51 @@ static void mtk_rdma_config(struct mtk_ddp_comp *comp, unsigned int width, writel(reg, comp->regs + DISP_REG_RDMA_FIFO_CON); } +static unsigned int rdma_fmt_convert(struct mtk_disp_rdma *rdma, + unsigned int fmt) +{ + /* The return value in switch "MEM_MODE_INPUT_FORMAT_XXX" + * is defined in mediatek HW data sheet. + * The alphabet order in XXX is no relation to data + * arrangement in memory. + */ + switch (fmt) { + default: + case DRM_FORMAT_RGB565: + return MEM_MODE_INPUT_FORMAT_RGB565; + case DRM_FORMAT_BGR565: + return MEM_MODE_INPUT_FORMAT_RGB565 | MEM_MODE_INPUT_SWAP; + case DRM_FORMAT_RGB888: + return MEM_MODE_INPUT_FORMAT_RGB888; + case DRM_FORMAT_BGR888: + return MEM_MODE_INPUT_FORMAT_RGB888 | MEM_MODE_INPUT_SWAP; + case DRM_FORMAT_RGBX8888: + case DRM_FORMAT_RGBA8888: + return MEM_MODE_INPUT_FORMAT_ARGB8888; + case DRM_FORMAT_BGRX8888: + case DRM_FORMAT_BGRA8888: + return MEM_MODE_INPUT_FORMAT_ARGB8888 | MEM_MODE_INPUT_SWAP; + case DRM_FORMAT_XRGB8888: + case DRM_FORMAT_ARGB8888: + return MEM_MODE_INPUT_FORMAT_RGBA8888; + case DRM_FORMAT_XBGR8888: + case DRM_FORMAT_ABGR8888: + return MEM_MODE_INPUT_FORMAT_RGBA8888 | MEM_MODE_INPUT_SWAP; + } +} + static void mtk_rdma_layer_config(struct mtk_ddp_comp *comp, unsigned int idx, struct mtk_plane_state *state) { + struct mtk_disp_rdma *rdma = comp_to_rdma(comp); struct mtk_plane_pending_state *pending = &state->pending; unsigned int addr = pending->addr; unsigned int pitch = pending->pitch & 0xffff; + unsigned int fmt = pending->format; + unsigned int con; + + con = rdma_fmt_convert(rdma, fmt); + writel_relaxed(con, comp->regs + DISP_RDMA_MEM_CON); writel_relaxed(addr, comp->regs + DISP_RDMA_MEM_START_ADDR); writel_relaxed(pitch, comp->regs + DISP_RDMA_MEM_SRC_PITCH); From 55b53f6f7ccf0990ad83acf4fdb0436ff79fdfb6 Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:42 +0800 Subject: [PATCH 0148/1762] drm/mediatek: add the comment about color format setting for OVL This patch add the comment about color format setting for OVL Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index 978782a77629..0facd823c552 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -157,6 +157,11 @@ static void mtk_ovl_layer_off(struct mtk_ddp_comp *comp, unsigned int idx) static unsigned int ovl_fmt_convert(struct mtk_disp_ovl *ovl, unsigned int fmt) { + /* The return value in switch "MEM_MODE_INPUT_FORMAT_XXX" + * is defined in mediatek HW data sheet. + * The alphabet order in XXX is no relation to data + * arrangement in memory. + */ switch (fmt) { default: case DRM_FORMAT_RGB565: From 94420a63cf784945061b7b5f38511b7a48f034eb Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:43 +0800 Subject: [PATCH 0149/1762] drm/mediatek: add YUYV/UYVY color format support for RDMA This patch add YUYV/UYVY color format support for RDMA and transform matrix for YUYV/UYVY. Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c index 091e48e51501..2d27e15445d2 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c @@ -33,6 +33,9 @@ #define RDMA_ENGINE_EN BIT(0) #define RDMA_MODE_MEMORY BIT(1) #define DISP_REG_RDMA_SIZE_CON_0 0x0014 +#define RDMA_MATRIX_ENABLE BIT(17) +#define RDMA_MATRIX_INT_MTX_SEL GENMASK(23, 20) +#define RDMA_MATRIX_INT_MTX_BT601_to_RGB (6 << 20) #define DISP_REG_RDMA_SIZE_CON_1 0x0018 #define DISP_REG_RDMA_TARGET_LINE 0x001c #define DISP_RDMA_MEM_CON 0x0024 @@ -40,6 +43,8 @@ #define MEM_MODE_INPUT_FORMAT_RGB888 (0x001 << 4) #define MEM_MODE_INPUT_FORMAT_RGBA8888 (0x002 << 4) #define MEM_MODE_INPUT_FORMAT_ARGB8888 (0x003 << 4) +#define MEM_MODE_INPUT_FORMAT_UYVY (0x004 << 4) +#define MEM_MODE_INPUT_FORMAT_YUYV (0x005 << 4) #define MEM_MODE_INPUT_SWAP BIT(8) #define DISP_RDMA_MEM_SRC_PITCH 0x002c #define DISP_RDMA_MEM_GMC_SETTING_0 0x0030 @@ -180,6 +185,10 @@ static unsigned int rdma_fmt_convert(struct mtk_disp_rdma *rdma, case DRM_FORMAT_XBGR8888: case DRM_FORMAT_ABGR8888: return MEM_MODE_INPUT_FORMAT_RGBA8888 | MEM_MODE_INPUT_SWAP; + case DRM_FORMAT_UYVY: + return MEM_MODE_INPUT_FORMAT_UYVY; + case DRM_FORMAT_YUYV: + return MEM_MODE_INPUT_FORMAT_YUYV; } } @@ -196,6 +205,17 @@ static void mtk_rdma_layer_config(struct mtk_ddp_comp *comp, unsigned int idx, con = rdma_fmt_convert(rdma, fmt); writel_relaxed(con, comp->regs + DISP_RDMA_MEM_CON); + if (fmt == DRM_FORMAT_UYVY || fmt == DRM_FORMAT_YUYV) { + rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0, + RDMA_MATRIX_ENABLE, RDMA_MATRIX_ENABLE); + rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0, + RDMA_MATRIX_INT_MTX_SEL, + RDMA_MATRIX_INT_MTX_BT601_to_RGB); + } else { + rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0, + RDMA_MATRIX_ENABLE, 0); + } + writel_relaxed(addr, comp->regs + DISP_RDMA_MEM_START_ADDR); writel_relaxed(pitch, comp->regs + DISP_RDMA_MEM_SRC_PITCH); writel(RDMA_MEM_GMC, comp->regs + DISP_RDMA_MEM_GMC_SETTING_0); From 650afd49572b56a5c58134d4acfeb77acc69d622 Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:44 +0800 Subject: [PATCH 0150/1762] drm/mediatek: add function to get layer number for component This patch add function to get layer number for component Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h index 7413ffeb3c9d..8399229e6ad2 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h @@ -78,6 +78,7 @@ struct mtk_ddp_comp_funcs { void (*stop)(struct mtk_ddp_comp *comp); void (*enable_vblank)(struct mtk_ddp_comp *comp, struct drm_crtc *crtc); void (*disable_vblank)(struct mtk_ddp_comp *comp); + unsigned int (*layer_nr)(struct mtk_ddp_comp *comp); void (*layer_on)(struct mtk_ddp_comp *comp, unsigned int idx); void (*layer_off)(struct mtk_ddp_comp *comp, unsigned int idx); void (*layer_config)(struct mtk_ddp_comp *comp, unsigned int idx, @@ -128,6 +129,14 @@ static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp) comp->funcs->disable_vblank(comp); } +static inline unsigned int mtk_ddp_comp_layer_nr(struct mtk_ddp_comp *comp) +{ + if (comp->funcs && comp->funcs->layer_nr) + return comp->funcs->layer_nr(comp); + + return 0; +} + static inline void mtk_ddp_comp_layer_on(struct mtk_ddp_comp *comp, unsigned int idx) { From 1cbcb763ea5035e7ef01010ea68eb3b5143ad7cb Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:45 +0800 Subject: [PATCH 0151/1762] drm/mediatek: add function to return OVL layer number This patch add function to return OVL layer number For now, MT8173, MT2712, MT2701 OVL all has 4 layer. Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index 0facd823c552..28d191192945 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -132,6 +132,11 @@ static void mtk_ovl_config(struct mtk_ddp_comp *comp, unsigned int w, writel(0x0, comp->regs + DISP_REG_OVL_RST); } +static unsigned int mtk_ovl_layer_nr(struct mtk_ddp_comp *comp) +{ + return 4; +} + static void mtk_ovl_layer_on(struct mtk_ddp_comp *comp, unsigned int idx) { unsigned int reg; @@ -226,6 +231,7 @@ static const struct mtk_ddp_comp_funcs mtk_disp_ovl_funcs = { .stop = mtk_ovl_stop, .enable_vblank = mtk_ovl_enable_vblank, .disable_vblank = mtk_ovl_disable_vblank, + .layer_nr = mtk_ovl_layer_nr, .layer_on = mtk_ovl_layer_on, .layer_off = mtk_ovl_layer_off, .layer_config = mtk_ovl_layer_config, From 98b6d76f957ba80017a3118fe0e33030b4bc017b Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:46 +0800 Subject: [PATCH 0152/1762] drm/mediatek: add function to return RDMA layer number This patch add function to return RDMA layer number RDMA always has one layer. Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c index 2d27e15445d2..b0a5cffe345a 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c @@ -192,6 +192,11 @@ static unsigned int rdma_fmt_convert(struct mtk_disp_rdma *rdma, } } +static unsigned int mtk_rdma_layer_nr(struct mtk_ddp_comp *comp) +{ + return 1; +} + static void mtk_rdma_layer_config(struct mtk_ddp_comp *comp, unsigned int idx, struct mtk_plane_state *state) { @@ -229,6 +234,7 @@ static const struct mtk_ddp_comp_funcs mtk_disp_rdma_funcs = { .stop = mtk_rdma_stop, .enable_vblank = mtk_rdma_enable_vblank, .disable_vblank = mtk_rdma_disable_vblank, + .layer_nr = mtk_rdma_layer_nr, .layer_config = mtk_rdma_layer_config, }; From 66b2cf9623facfad790b335fcfd717258a00896b Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:47 +0800 Subject: [PATCH 0153/1762] drm/mediatek: use layer_nr function to get layer number to init plane This patch use layer_nr function to get layer number to init plane When plane init in crtc create, it use the number of OVL layer to init plane. That's OVL can read 4 memory address. For mt2712 third ddp, it use RDMA to read memory. RDMA can read 1 memory address, so it just init one plane. For compatibility, this patch use mtk_ddp_comp_layer_nr function to get layer number from their HW component in ddp for plane init. Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 21 ++++++++++++++------- drivers/gpu/drm/mediatek/mtk_drm_crtc.h | 1 - 2 files changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index 2d6aa150a9ff..845d1608465e 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -45,7 +45,8 @@ struct mtk_drm_crtc { bool pending_needs_vblank; struct drm_pending_vblank_event *event; - struct drm_plane planes[OVL_LAYER_NR]; + struct drm_plane *planes; + unsigned int layer_nr; bool pending_planes; void __iomem *config_regs; @@ -286,7 +287,7 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc) } /* Initially configure all planes */ - for (i = 0; i < OVL_LAYER_NR; i++) { + for (i = 0; i < mtk_crtc->layer_nr; i++) { struct drm_plane *plane = &mtk_crtc->planes[i]; struct mtk_plane_state *plane_state; @@ -351,7 +352,7 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc) } if (mtk_crtc->pending_planes) { - for (i = 0; i < OVL_LAYER_NR; i++) { + for (i = 0; i < mtk_crtc->layer_nr; i++) { struct drm_plane *plane = &mtk_crtc->planes[i]; struct mtk_plane_state *plane_state; @@ -403,7 +404,7 @@ static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc, return; /* Set all pending plane state to disabled */ - for (i = 0; i < OVL_LAYER_NR; i++) { + for (i = 0; i < mtk_crtc->layer_nr; i++) { struct drm_plane *plane = &mtk_crtc->planes[i]; struct mtk_plane_state *plane_state; @@ -450,7 +451,7 @@ static void mtk_drm_crtc_atomic_flush(struct drm_crtc *crtc, if (mtk_crtc->event) mtk_crtc->pending_needs_vblank = true; - for (i = 0; i < OVL_LAYER_NR; i++) { + for (i = 0; i < mtk_crtc->layer_nr; i++) { struct drm_plane *plane = &mtk_crtc->planes[i]; struct mtk_plane_state *plane_state; @@ -598,7 +599,12 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, mtk_crtc->ddp_comp[i] = comp; } - for (zpos = 0; zpos < OVL_LAYER_NR; zpos++) { + mtk_crtc->layer_nr = mtk_ddp_comp_layer_nr(mtk_crtc->ddp_comp[0]); + mtk_crtc->planes = devm_kzalloc(dev, mtk_crtc->layer_nr * + sizeof(struct drm_plane), + GFP_KERNEL); + + for (zpos = 0; zpos < mtk_crtc->layer_nr; zpos++) { type = (zpos == 0) ? DRM_PLANE_TYPE_PRIMARY : (zpos == 1) ? DRM_PLANE_TYPE_CURSOR : DRM_PLANE_TYPE_OVERLAY; @@ -609,7 +615,8 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, } ret = mtk_drm_crtc_init(drm_dev, mtk_crtc, &mtk_crtc->planes[0], - &mtk_crtc->planes[1], pipe); + mtk_crtc->layer_nr > 1 ? &mtk_crtc->planes[1] : + NULL, pipe); if (ret < 0) goto unprepare; drm_mode_crtc_set_gamma_size(&mtk_crtc->base, MTK_LUT_SIZE); diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h index 9d9410c67ae9..60bcc8aba8e3 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h @@ -18,7 +18,6 @@ #include "mtk_drm_ddp_comp.h" #include "mtk_drm_plane.h" -#define OVL_LAYER_NR 4 #define MTK_LUT_SIZE 512 #define MTK_MAX_BPC 10 #define MTK_MIN_BPC 3 From f265905c939e21a0c9e83540d4c2776c3e43c310 Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:48 +0800 Subject: [PATCH 0154/1762] drm/mediatek: update some variable name from ovl to comp This patch update some variable name from ovl to comp Because RDMA would be first HW in ddp, the naming ovl should be change to comp. Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 26 ++++++++++++------------- drivers/gpu/drm/mediatek/mtk_drm_crtc.h | 2 +- 2 files changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index 845d1608465e..0b976dfd04df 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -172,9 +172,9 @@ static void mtk_drm_crtc_mode_set_nofb(struct drm_crtc *crtc) static int mtk_drm_crtc_enable_vblank(struct drm_crtc *crtc) { struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc); - struct mtk_ddp_comp *ovl = mtk_crtc->ddp_comp[0]; + struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0]; - mtk_ddp_comp_enable_vblank(ovl, &mtk_crtc->base); + mtk_ddp_comp_enable_vblank(comp, &mtk_crtc->base); return 0; } @@ -182,9 +182,9 @@ static int mtk_drm_crtc_enable_vblank(struct drm_crtc *crtc) static void mtk_drm_crtc_disable_vblank(struct drm_crtc *crtc) { struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc); - struct mtk_ddp_comp *ovl = mtk_crtc->ddp_comp[0]; + struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0]; - mtk_ddp_comp_disable_vblank(ovl); + mtk_ddp_comp_disable_vblank(comp); } static int mtk_crtc_ddp_clk_enable(struct mtk_drm_crtc *mtk_crtc) @@ -335,7 +335,7 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc) { struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc); struct mtk_crtc_state *state = to_mtk_crtc_state(mtk_crtc->base.state); - struct mtk_ddp_comp *ovl = mtk_crtc->ddp_comp[0]; + struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0]; unsigned int i; /* @@ -344,7 +344,7 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc) * queue update module registers on vblank. */ if (state->pending_config) { - mtk_ddp_comp_config(ovl, state->pending_width, + mtk_ddp_comp_config(comp, state->pending_width, state->pending_height, state->pending_vrefresh, 0); @@ -359,7 +359,7 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc) plane_state = to_mtk_plane_state(plane->state); if (plane_state->pending.config) { - mtk_ddp_comp_layer_config(ovl, i, plane_state); + mtk_ddp_comp_layer_config(comp, i, plane_state); plane_state->pending.config = false; } } @@ -371,12 +371,12 @@ static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) { struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc); - struct mtk_ddp_comp *ovl = mtk_crtc->ddp_comp[0]; + struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0]; int ret; DRM_DEBUG_DRIVER("%s %d\n", __func__, crtc->base.id); - ret = mtk_smi_larb_get(ovl->larb_dev); + ret = mtk_smi_larb_get(comp->larb_dev); if (ret) { DRM_ERROR("Failed to get larb: %d\n", ret); return; @@ -384,7 +384,7 @@ static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc, ret = mtk_crtc_ddp_hw_init(mtk_crtc); if (ret) { - mtk_smi_larb_put(ovl->larb_dev); + mtk_smi_larb_put(comp->larb_dev); return; } @@ -396,7 +396,7 @@ static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) { struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc); - struct mtk_ddp_comp *ovl = mtk_crtc->ddp_comp[0]; + struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0]; int i; DRM_DEBUG_DRIVER("%s %d\n", __func__, crtc->base.id); @@ -419,7 +419,7 @@ static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc, drm_crtc_vblank_off(crtc); mtk_crtc_ddp_hw_fini(mtk_crtc); - mtk_smi_larb_put(ovl->larb_dev); + mtk_smi_larb_put(comp->larb_dev); mtk_crtc->enabled = false; } @@ -517,7 +517,7 @@ err_cleanup_crtc: return ret; } -void mtk_crtc_ddp_irq(struct drm_crtc *crtc, struct mtk_ddp_comp *ovl) +void mtk_crtc_ddp_irq(struct drm_crtc *crtc, struct mtk_ddp_comp *comp) { struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc); struct mtk_drm_private *priv = crtc->dev->dev_private; diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h index 60bcc8aba8e3..091adb2087eb 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h @@ -23,7 +23,7 @@ #define MTK_MIN_BPC 3 void mtk_drm_crtc_commit(struct drm_crtc *crtc); -void mtk_crtc_ddp_irq(struct drm_crtc *crtc, struct mtk_ddp_comp *ovl); +void mtk_crtc_ddp_irq(struct drm_crtc *crtc, struct mtk_ddp_comp *comp); int mtk_drm_crtc_create(struct drm_device *drm_dev, const enum mtk_ddp_comp_id *path, unsigned int path_len); From 08bcbed747eb87f00d2e2590b49607af1a9f4fe9 Mon Sep 17 00:00:00 2001 From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:49 +0800 Subject: [PATCH 0155/1762] drm/mediatek: fix connection from RDMA2 to DSI1 This patch fix connection from RDMA2 to DSI1 Signed-off-by: Stu Hsieh Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c index 3239f22785fd..546b3e3b300b 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c @@ -314,7 +314,7 @@ static unsigned int mtk_ddp_sel_in(enum mtk_ddp_comp_id cur, *addr = DISP_REG_CONFIG_DSIE_SEL_IN; value = DSI0_SEL_IN_RDMA2; } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI1) { - *addr = DISP_REG_CONFIG_DSIE_SEL_IN; + *addr = DISP_REG_CONFIG_DSIO_SEL_IN; value = DSI1_SEL_IN_RDMA2; } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI2) { *addr = DISP_REG_CONFIG_DSIE_SEL_IN; From 0aebe40bae6cf5652fdc3d05ecee15fbf5748194 Mon Sep 17 00:00:00 2001 From: Shreyas NC Date: Fri, 27 Jul 2018 14:44:08 +0530 Subject: [PATCH 0156/1762] soundwire: Fix duplicate stream state assignment For a SoundWire stream it is expected that a Slave is added to the stream before Master is added. So, move the stream state to CONFIGURED after the first Slave is added and remove the stream state assignment for Master add. Along with these changes, add additional comments to explain the same. Signed-off-by: Shreyas NC Acked-by: Pierre-Louis Bossart Signed-off-by: Vinod Koul --- drivers/soundwire/stream.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c index 4b5e250e8615..7ba6d4d8cd03 100644 --- a/drivers/soundwire/stream.c +++ b/drivers/soundwire/stream.c @@ -1123,8 +1123,6 @@ int sdw_stream_add_master(struct sdw_bus *bus, if (ret) goto stream_error; - stream->state = SDW_STREAM_CONFIGURED; - stream_error: sdw_release_master_stream(stream); error: @@ -1141,6 +1139,10 @@ EXPORT_SYMBOL(sdw_stream_add_master); * @stream: SoundWire stream * @port_config: Port configuration for audio stream * @num_ports: Number of ports + * + * It is expected that Slave is added before adding Master + * to the Stream. + * */ int sdw_stream_add_slave(struct sdw_slave *slave, struct sdw_stream_config *stream_config, @@ -1186,6 +1188,12 @@ int sdw_stream_add_slave(struct sdw_slave *slave, if (ret) goto stream_error; + /* + * Change stream state to CONFIGURED on first Slave add. + * Bus is not aware of number of Slave(s) in a stream at this + * point so cannot depend on all Slave(s) to be added in order to + * change stream state to CONFIGURED. + */ stream->state = SDW_STREAM_CONFIGURED; goto error; From 3fef1a2259c556cce34df2791688cb3001f81c92 Mon Sep 17 00:00:00 2001 From: Shreyas NC Date: Fri, 27 Jul 2018 14:44:09 +0530 Subject: [PATCH 0157/1762] soundwire: Fix incorrect exit after configuring stream In sdw_stream_add_master() after the Master ports are configured, the stream is released incorrectly. So, fix it by avoiding stream release after configuring the Master for the stream. While at it, rename the label appropriately. Signed-off-by: Shreyas NC Acked-by: Pierre-Louis Bossart Signed-off-by: Vinod Koul --- drivers/soundwire/stream.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c index 7ba6d4d8cd03..b2682272503e 100644 --- a/drivers/soundwire/stream.c +++ b/drivers/soundwire/stream.c @@ -1112,7 +1112,7 @@ int sdw_stream_add_master(struct sdw_bus *bus, "Master runtime config failed for stream:%s", stream->name); ret = -ENOMEM; - goto error; + goto unlock; } ret = sdw_config_stream(bus->dev, stream, stream_config, false); @@ -1123,9 +1123,11 @@ int sdw_stream_add_master(struct sdw_bus *bus, if (ret) goto stream_error; + goto unlock; + stream_error: sdw_release_master_stream(stream); -error: +unlock: mutex_unlock(&bus->bus_lock); return ret; } From 8d6ccf5cebbc7ed1dee9986e36853a78dfb64084 Mon Sep 17 00:00:00 2001 From: Sanyog Kale Date: Fri, 27 Jul 2018 14:44:10 +0530 Subject: [PATCH 0158/1762] soundwire: Fix acquiring bus lock twice during master release As part of sdw_stream_remove_master(), sdw_stream_remove_slave() is called which results in bus lock being acquired twice. So, fix it by performing specific Slave remove operations in sdw_release_master_stream() instead of calling sdw_stream_remove_slave(). Signed-off-by: Sanyog Kale Signed-off-by: Shreyas NC Acked-by: Pierre-Louis Bossart Signed-off-by: Vinod Koul --- drivers/soundwire/stream.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c index b2682272503e..e5c7e1ef6318 100644 --- a/drivers/soundwire/stream.c +++ b/drivers/soundwire/stream.c @@ -899,9 +899,10 @@ static void sdw_release_master_stream(struct sdw_stream_runtime *stream) struct sdw_master_runtime *m_rt = stream->m_rt; struct sdw_slave_runtime *s_rt, *_s_rt; - list_for_each_entry_safe(s_rt, _s_rt, - &m_rt->slave_rt_list, m_rt_node) - sdw_stream_remove_slave(s_rt->slave, stream); + list_for_each_entry_safe(s_rt, _s_rt, &m_rt->slave_rt_list, m_rt_node) { + sdw_slave_port_release(s_rt->slave->bus, s_rt->slave, stream); + sdw_release_slave_stream(s_rt->slave, stream); + } list_del(&m_rt->bus_node); } From 072ebb3bffe67d71d1f1e52add799f4491eab691 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 27 Aug 2018 01:15:11 -0400 Subject: [PATCH 0159/1762] ext4: add nonstring annotations to ext4.h This suppresses some false positives in gcc 8's -Wstringop-truncation Suggested by Miguel Ojeda (hopefully the __nonstring definition will eventually get accepted in the compiler-gcc.h header file). Signed-off-by: Theodore Ts'o Cc: Miguel Ojeda --- fs/ext4/ext4.h | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 1fc013f3d944..249bcee4d7b2 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -43,6 +43,17 @@ #define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_EXT4_FS_ENCRYPTION) #include +#include + +/* Until this gets included into linux/compiler-gcc.h */ +#ifndef __nonstring +#if defined(GCC_VERSION) && (GCC_VERSION >= 80000) +#define __nonstring __attribute__((nonstring)) +#else +#define __nonstring +#endif +#endif + /* * The fourth extended filesystem constants/structures */ @@ -1226,7 +1237,7 @@ struct ext4_super_block { __le32 s_feature_ro_compat; /* readonly-compatible feature set */ /*68*/ __u8 s_uuid[16]; /* 128-bit uuid for volume */ /*78*/ char s_volume_name[16]; /* volume name */ -/*88*/ char s_last_mounted[64]; /* directory where last mounted */ +/*88*/ char s_last_mounted[64] __nonstring; /* directory where last mounted */ /*C8*/ __le32 s_algorithm_usage_bitmap; /* For compression */ /* * Performance hints. Directory preallocation should only @@ -1277,13 +1288,13 @@ struct ext4_super_block { __le32 s_first_error_time; /* first time an error happened */ __le32 s_first_error_ino; /* inode involved in first error */ __le64 s_first_error_block; /* block involved of first error */ - __u8 s_first_error_func[32]; /* function where the error happened */ + __u8 s_first_error_func[32] __nonstring; /* function where the error happened */ __le32 s_first_error_line; /* line number where error happened */ __le32 s_last_error_time; /* most recent time of an error */ __le32 s_last_error_ino; /* inode involved in last error */ __le32 s_last_error_line; /* line number where error happened */ __le64 s_last_error_block; /* block involved of last error */ - __u8 s_last_error_func[32]; /* function where the error happened */ + __u8 s_last_error_func[32] __nonstring; /* function where the error happened */ #define EXT4_S_ERR_END offsetof(struct ext4_super_block, s_mount_opts) __u8 s_mount_opts[64]; __le32 s_usr_quota_inum; /* inode for tracking user quota */ From 111b009f7e8bcdfc8d565b1f0e3ee5072bb7490b Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Wed, 22 Aug 2018 10:40:27 +0800 Subject: [PATCH 0160/1762] dmaengine: mic_x100_dma: use devm_kzalloc to fix an issue The following patch introduced an issue. commit f6206f00d8c5 ("dmaengine: mic_x100_dma: use the new helper to simplify the code") This issue is : kfree(mic_dma_dev) ..... dma_async_device_unregister(mic_dma_dev->device); Free the memory, and use it again. So use devm_kzalloc to allocate mic_dma_dev to fix it. When the Devres try to release the resources, it will call release at the following order: dma_async_device_unregister(mic_dma_dev->device); ..... kfree(mic_dma_dev) Fixes: f6206f00d8c5 ("dmaengine: mic_x100_dma: use the new helper to simplify the code") Signed-off-by: Huang Shijie Signed-off-by: Vinod Koul --- drivers/dma/mic_x100_dma.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/dma/mic_x100_dma.c b/drivers/dma/mic_x100_dma.c index b76cb17d879c..adfd316db1a8 100644 --- a/drivers/dma/mic_x100_dma.c +++ b/drivers/dma/mic_x100_dma.c @@ -639,7 +639,7 @@ static struct mic_dma_device *mic_dma_dev_reg(struct mbus_device *mbdev, int ret; struct device *dev = &mbdev->dev; - mic_dma_dev = kzalloc(sizeof(*mic_dma_dev), GFP_KERNEL); + mic_dma_dev = devm_kzalloc(dev, sizeof(*mic_dma_dev), GFP_KERNEL); if (!mic_dma_dev) { ret = -ENOMEM; goto alloc_error; @@ -664,7 +664,6 @@ static struct mic_dma_device *mic_dma_dev_reg(struct mbus_device *mbdev, reg_error: mic_dma_uninit(mic_dma_dev); init_error: - kfree(mic_dma_dev); mic_dma_dev = NULL; alloc_error: dev_err(dev, "Error at %s %d ret=%d\n", __func__, __LINE__, ret); @@ -674,7 +673,6 @@ alloc_error: static void mic_dma_dev_unreg(struct mic_dma_device *mic_dma_dev) { mic_dma_uninit(mic_dma_dev); - kfree(mic_dma_dev); } /* DEBUGFS CODE */ From b50282f3241acee880514212d88b6049fb5039c8 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 27 Aug 2018 01:47:09 -0400 Subject: [PATCH 0161/1762] ext4: check to make sure the rename(2)'s destination is not freed If the destination of the rename(2) system call exists, the inode's link count (i_nlinks) must be non-zero. If it is, the inode can end up on the orphan list prematurely, leading to all sorts of hilarity, including a use-after-free. https://bugzilla.kernel.org/show_bug.cgi?id=200931 Signed-off-by: Theodore Ts'o Reported-by: Wen Xu Cc: stable@vger.kernel.org --- fs/ext4/namei.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 116ff68c5bd4..377d516c475f 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -3478,6 +3478,12 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry, int credits; u8 old_file_type; + if (new.inode && new.inode->i_nlink == 0) { + EXT4_ERROR_INODE(new.inode, + "target of rename is already freed"); + return -EFSCORRUPTED; + } + if ((ext4_test_inode_flag(new_dir, EXT4_INODE_PROJINHERIT)) && (!projid_eq(EXT4_I(new_dir)->i_projid, EXT4_I(old_dentry->d_inode)->i_projid))) From 538d6e9d597584e80514698e24321645debde78f Mon Sep 17 00:00:00 2001 From: Leonard Crestez Date: Tue, 24 Jul 2018 19:14:19 +0300 Subject: [PATCH 0162/1762] Revert "ARM: dts: imx7d: Invert legacy PCI irq mapping" This reverts commit 1c86c9dd82f859b474474a7fee0d5195da2c9c1d. That commit followed the reference manual but unfortunately the imx7d manual is incorrect. Tested with ath9k pcie card and confirmed internally. Signed-off-by: Leonard Crestez Acked-by: Lucas Stach Fixes: 1c86c9dd82f8 ("ARM: dts: imx7d: Invert legacy PCI irq mapping") Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx7d.dtsi | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi index 7cbc2ffa4b3a..7234e8330a57 100644 --- a/arch/arm/boot/dts/imx7d.dtsi +++ b/arch/arm/boot/dts/imx7d.dtsi @@ -126,10 +126,14 @@ interrupt-names = "msi"; #interrupt-cells = <1>; interrupt-map-mask = <0 0 0 0x7>; - interrupt-map = <0 0 0 1 &intc GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>, - <0 0 0 2 &intc GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>, - <0 0 0 3 &intc GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>, - <0 0 0 4 &intc GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>; + /* + * Reference manual lists pci irqs incorrectly + * Real hardware ordering is same as imx6: D+MSI, C, B, A + */ + interrupt-map = <0 0 0 1 &intc GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 2 &intc GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 3 &intc GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 4 &intc GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>; clocks = <&clks IMX7D_PCIE_CTRL_ROOT_CLK>, <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>, <&clks IMX7D_PCIE_PHY_ROOT_CLK>; From 90a96087b5fa835790a54c588184adfc867dbc12 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 20 Jul 2018 17:39:16 -0300 Subject: [PATCH 0163/1762] ARM: dts: imx28-evk: Move regulators outside simple-bus It is recommended to place regulators outside simple-bus, so move them accordingly. Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx28-evk.dts | 135 +++++++++++++++----------------- 1 file changed, 61 insertions(+), 74 deletions(-) diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts index 6b0ae667640f..210aee097b36 100644 --- a/arch/arm/boot/dts/imx28-evk.dts +++ b/arch/arm/boot/dts/imx28-evk.dts @@ -13,6 +13,67 @@ reg = <0x40000000 0x08000000>; }; + + reg_3p3v: regulator-3p3v { + compatible = "regulator-fixed"; + regulator-name = "3P3V"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + reg_vddio_sd0: regulator-vddio-sd0 { + compatible = "regulator-fixed"; + regulator-name = "vddio-sd0"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&gpio3 28 0>; + }; + + reg_fec_3v3: regulator-fec-3v3 { + compatible = "regulator-fixed"; + regulator-name = "fec-3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&gpio2 15 0>; + }; + + reg_usb0_vbus: regulator-usb0-vbus { + compatible = "regulator-fixed"; + regulator-name = "usb0_vbus"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + gpio = <&gpio3 9 0>; + enable-active-high; + }; + + reg_usb1_vbus: regulator-usb1-vbus { + compatible = "regulator-fixed"; + regulator-name = "usb1_vbus"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + gpio = <&gpio3 8 0>; + enable-active-high; + }; + + reg_lcd_3v3: regulator-lcd-3v3 { + compatible = "regulator-fixed"; + regulator-name = "lcd-3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&gpio3 30 0>; + enable-active-high; + }; + + reg_can_3v3: regulator-can-3v3 { + compatible = "regulator-fixed"; + regulator-name = "can-3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&gpio2 13 0>; + enable-active-high; + }; + apb@80000000 { apbh@80000000 { gpmi-nand@8000c000 { @@ -269,80 +330,6 @@ }; }; - regulators { - compatible = "simple-bus"; - #address-cells = <1>; - #size-cells = <0>; - - reg_3p3v: regulator@0 { - compatible = "regulator-fixed"; - reg = <0>; - regulator-name = "3P3V"; - regulator-min-microvolt = <3300000>; - regulator-max-microvolt = <3300000>; - regulator-always-on; - }; - - reg_vddio_sd0: regulator@1 { - compatible = "regulator-fixed"; - reg = <1>; - regulator-name = "vddio-sd0"; - regulator-min-microvolt = <3300000>; - regulator-max-microvolt = <3300000>; - gpio = <&gpio3 28 0>; - }; - - reg_fec_3v3: regulator@2 { - compatible = "regulator-fixed"; - reg = <2>; - regulator-name = "fec-3v3"; - regulator-min-microvolt = <3300000>; - regulator-max-microvolt = <3300000>; - gpio = <&gpio2 15 0>; - }; - - reg_usb0_vbus: regulator@3 { - compatible = "regulator-fixed"; - reg = <3>; - regulator-name = "usb0_vbus"; - regulator-min-microvolt = <5000000>; - regulator-max-microvolt = <5000000>; - gpio = <&gpio3 9 0>; - enable-active-high; - }; - - reg_usb1_vbus: regulator@4 { - compatible = "regulator-fixed"; - reg = <4>; - regulator-name = "usb1_vbus"; - regulator-min-microvolt = <5000000>; - regulator-max-microvolt = <5000000>; - gpio = <&gpio3 8 0>; - enable-active-high; - }; - - reg_lcd_3v3: regulator@5 { - compatible = "regulator-fixed"; - reg = <5>; - regulator-name = "lcd-3v3"; - regulator-min-microvolt = <3300000>; - regulator-max-microvolt = <3300000>; - gpio = <&gpio3 30 0>; - enable-active-high; - }; - - reg_can_3v3: regulator@6 { - compatible = "regulator-fixed"; - reg = <6>; - regulator-name = "can-3v3"; - regulator-min-microvolt = <3300000>; - regulator-max-microvolt = <3300000>; - gpio = <&gpio2 13 0>; - enable-active-high; - }; - - }; - sound { compatible = "fsl,imx28-evk-sgtl5000", "fsl,mxs-audio-sgtl5000"; From c1539840fc25d89f3fe51038144dc0233b333453 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 20 Jul 2018 17:39:17 -0300 Subject: [PATCH 0164/1762] ARM: dts: imx28-evk: Convert to the new display bindings imx28-evk board has a Seiko 43WVF1G parallel display. Instead of hardcoding the display timings in the device tree, use the "sii,43wvf1g" compatible instead. This aligns with the new mxsfb bindings scheme documented at: Documentation/devicetree/bindings/display/mxsfb.txt Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx28-evk.dts | 48 ++++++++++++++++----------------- 1 file changed, 24 insertions(+), 24 deletions(-) diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts index 210aee097b36..93ab5bdfe068 100644 --- a/arch/arm/boot/dts/imx28-evk.dts +++ b/arch/arm/boot/dts/imx28-evk.dts @@ -74,6 +74,26 @@ enable-active-high; }; + reg_lcd_5v: regulator-lcd-5v { + compatible = "regulator-fixed"; + regulator-name = "lcd-5v"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + }; + + panel { + compatible = "sii,43wvf1g"; + backlight = <&backlight_display>; + dvdd-supply = <®_lcd_3v3>; + avdd-supply = <®_lcd_5v>; + + port { + panel_in: endpoint { + remote-endpoint = <&display_out>; + }; + }; + }; + apb@80000000 { apbh@80000000 { gpmi-nand@8000c000 { @@ -177,31 +197,11 @@ pinctrl-names = "default"; pinctrl-0 = <&lcdif_24bit_pins_a &lcdif_pins_evk>; - lcd-supply = <®_lcd_3v3>; - display = <&display0>; status = "okay"; - display0: display0 { - bits-per-pixel = <32>; - bus-width = <24>; - - display-timings { - native-mode = <&timing0>; - timing0: timing0 { - clock-frequency = <33500000>; - hactive = <800>; - vactive = <480>; - hback-porch = <89>; - hfront-porch = <164>; - vback-porch = <23>; - vfront-porch = <10>; - hsync-len = <10>; - vsync-len = <10>; - hsync-active = <0>; - vsync-active = <0>; - de-active = <1>; - pixelclk-active = <0>; - }; + port { + display_out: endpoint { + remote-endpoint = <&panel_in>; }; }; }; @@ -350,7 +350,7 @@ }; }; - backlight { + backlight_display: backlight { compatible = "pwm-backlight"; pwms = <&pwm 2 5000000>; brightness-levels = <0 4 8 16 32 64 128 255>; From cde305e9ce28d96d7f63e4fb5298291e90a91f8f Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 20 Jul 2018 17:39:18 -0300 Subject: [PATCH 0165/1762] ARM: dts: imx23-evk: Move regulators outside simple-bus It is recommended to place regulators outside simple-bus, so move them accordingly. Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx23-evk.dts | 42 +++++++++++++-------------------- 1 file changed, 17 insertions(+), 25 deletions(-) diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts index 9fb47724b9c1..494095d40327 100644 --- a/arch/arm/boot/dts/imx23-evk.dts +++ b/arch/arm/boot/dts/imx23-evk.dts @@ -13,6 +13,23 @@ reg = <0x40000000 0x08000000>; }; + reg_vddio_sd0: regulator-vddio-sd0 { + compatible = "regulator-fixed"; + regulator-name = "vddio-sd0"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&gpio1 29 0>; + }; + + reg_lcd_3v3: regulator-lcd-3v3 { + compatible = "regulator-fixed"; + regulator-name = "lcd-3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&gpio1 18 0>; + enable-active-high; + }; + apb@80000000 { apbh@80000000 { gpmi-nand@8000c000 { @@ -118,31 +135,6 @@ }; }; - regulators { - compatible = "simple-bus"; - #address-cells = <1>; - #size-cells = <0>; - - reg_vddio_sd0: regulator@0 { - compatible = "regulator-fixed"; - reg = <0>; - regulator-name = "vddio-sd0"; - regulator-min-microvolt = <3300000>; - regulator-max-microvolt = <3300000>; - gpio = <&gpio1 29 0>; - }; - - reg_lcd_3v3: regulator@1 { - compatible = "regulator-fixed"; - reg = <1>; - regulator-name = "lcd-3v3"; - regulator-min-microvolt = <3300000>; - regulator-max-microvolt = <3300000>; - gpio = <&gpio1 18 0>; - enable-active-high; - }; - }; - backlight { compatible = "pwm-backlight"; pwms = <&pwm 2 5000000>; From 549644b8c3c125355a361def1e42f8319ac6ad6c Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 20 Jul 2018 17:39:19 -0300 Subject: [PATCH 0166/1762] ARM: dts: imx23-evk: Convert to the new display bindings imx23-evk board has a Seiko 43WVF1G parallel display. Instead of hardcoding the display timings in the device tree, use the "sii,43wvf1g" compatible instead. This aligns with the new mxsfb bindings scheme documented at: Documentation/devicetree/bindings/display/mxsfb.txt Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx23-evk.dts | 48 ++++++++++++++++----------------- 1 file changed, 24 insertions(+), 24 deletions(-) diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts index 494095d40327..ad2ae25b7b4d 100644 --- a/arch/arm/boot/dts/imx23-evk.dts +++ b/arch/arm/boot/dts/imx23-evk.dts @@ -30,6 +30,26 @@ enable-active-high; }; + reg_lcd_5v: regulator-lcd-5v { + compatible = "regulator-fixed"; + regulator-name = "lcd-5v"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + }; + + panel { + compatible = "sii,43wvf1g"; + backlight = <&backlight_display>; + dvdd-supply = <®_lcd_3v3>; + avdd-supply = <®_lcd_5v>; + + port { + panel_in: endpoint { + remote-endpoint = <&display_out>; + }; + }; + }; + apb@80000000 { apbh@80000000 { gpmi-nand@8000c000 { @@ -69,31 +89,11 @@ lcdif@80030000 { pinctrl-names = "default"; pinctrl-0 = <&lcdif_24bit_pins_a>; - lcd-supply = <®_lcd_3v3>; - display = <&display0>; status = "okay"; - display0: display0 { - bits-per-pixel = <32>; - bus-width = <24>; - - display-timings { - native-mode = <&timing0>; - timing0: timing0 { - clock-frequency = <9200000>; - hactive = <480>; - vactive = <272>; - hback-porch = <15>; - hfront-porch = <8>; - vback-porch = <12>; - vfront-porch = <4>; - hsync-len = <1>; - vsync-len = <1>; - hsync-active = <0>; - vsync-active = <0>; - de-active = <1>; - pixelclk-active = <0>; - }; + port { + display_out: endpoint { + remote-endpoint = <&panel_in>; }; }; }; @@ -135,7 +135,7 @@ }; }; - backlight { + backlight_display: backlight { compatible = "pwm-backlight"; pwms = <&pwm 2 5000000>; brightness-levels = <0 4 8 16 32 64 128 255>; From 0ffbc2824282793a3ebf04d4804dea15d5b211c6 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 20 Jul 2018 17:39:20 -0300 Subject: [PATCH 0167/1762] ARM: mxs_defconfig: Select CONFIG_DRM_PANEL_SEIKO_43WVF1G imx23-evk and imx28-evk boards use a Seiko 43WVF1G panel. Now that the DRM mxsfb driver is the one selected by default, let's also select CONFIG_DRM_PANEL_SEIKO_43WVF1G so that these boards continue to have a working display by default. Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/configs/mxs_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/mxs_defconfig b/arch/arm/configs/mxs_defconfig index 148226e36152..7b8212857535 100644 --- a/arch/arm/configs/mxs_defconfig +++ b/arch/arm/configs/mxs_defconfig @@ -95,6 +95,7 @@ CONFIG_MFD_MXS_LRADC=y CONFIG_REGULATOR=y CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_DRM=y +CONFIG_DRM_PANEL_SEIKO_43WVF1G=y CONFIG_DRM_MXSFB=y CONFIG_FB_MODE_HELPERS=y CONFIG_BACKLIGHT_LCD_SUPPORT=y From b9543a2e39dc909e6b7ec901b6c7208d01d5c0dd Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 20 Jul 2018 17:39:21 -0300 Subject: [PATCH 0168/1762] ARM: imx_v6_v7_defconfig: Select CONFIG_DRM_PANEL_SEIKO_43WVF1G imx6sl-evk, imx6sll-evk and imx6sx-sdb boards use a Seiko 43WVF1G panel. Now that the DRM mxsfb driver is the one selected by default, let's also select CONFIG_DRM_PANEL_SEIKO_43WVF1G so that these boards continue to have a working display by default. Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/configs/imx_v6_v7_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index e2c127608bcc..7eca43ff69bb 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -257,6 +257,7 @@ CONFIG_IMX_IPUV3_CORE=y CONFIG_DRM=y CONFIG_DRM_PANEL_LVDS=y CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_SEIKO_43WVF1G=y CONFIG_DRM_DW_HDMI_AHB_AUDIO=m CONFIG_DRM_DW_HDMI_CEC=y CONFIG_DRM_IMX=y From d177c8b61d6b4ef360b1c2682e4d8e3bae01738b Mon Sep 17 00:00:00 2001 From: Icenowy Zheng Date: Thu, 26 Jul 2018 12:48:05 +0800 Subject: [PATCH 0169/1762] arm64: allwinner: dts: h6: fix Pine H64 MMC bus width Currently the enabled MMC controllers on Pine H64 do not have bus-width set, which make them fall back to 1-bit mode and become quite slow. Fix this by add the corresponding bus-width properties. Fixes: ecbd611882a1 ("arm64: allwinner: h6: enable MMC0/2 on Pine H64") Signed-off-by: Icenowy Zheng Signed-off-by: Maxime Ripard --- arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts index ceffc40810ee..48daec7f78ba 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts @@ -46,6 +46,7 @@ pinctrl-0 = <&mmc0_pins>; vmmc-supply = <®_cldo1>; cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>; + bus-width = <4>; status = "okay"; }; @@ -56,6 +57,7 @@ vqmmc-supply = <®_bldo2>; non-removable; cap-mmc-hw-reset; + bus-width = <8>; status = "okay"; }; From 166cd4421b0dabd2e438f5384f4ecf930dc8ab08 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 23 Aug 2018 23:43:45 +0200 Subject: [PATCH 0170/1762] mtd: rawnand: docg4: Remove wrong __init annotations If gcc (e.g. 4.1.2) decides not to inline init_mtd_structs() and read_id_reg(), this will cause section mismatches, and crashes: WARNING: drivers/mtd/nand/raw/docg4.o(.text+0xc10): Section mismatch in reference from the function docg4_attach_chip() to the function .init.text:init_mtd_structs() The function docg4_attach_chip() references the function __init init_mtd_structs(). This is often because docg4_attach_chip lacks a __init annotation or the annotation of init_mtd_structs is wrong. WARNING: drivers/mtd/nand/raw/docg4.o(.text+0xc3e): Section mismatch in reference from the function docg4_attach_chip() to the function .init.text:read_id_reg() The function docg4_attach_chip() references the function __init read_id_reg(). This is often because docg4_attach_chip lacks a __init annotation or the annotation of read_id_reg is wrong. Fix this by dropping the now incorrect __init annotations from init_mtd_structs() and read_id_reg(). Fixes: 66a38478dcc5b5a3 ("mtd: rawnand: docg4: convert driver to nand_scan()") Signed-off-by: Geert Uytterhoeven Signed-off-by: Boris Brezillon --- drivers/mtd/nand/raw/docg4.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/raw/docg4.c b/drivers/mtd/nand/raw/docg4.c index a3f04315c05c..427fcbc1b71c 100644 --- a/drivers/mtd/nand/raw/docg4.c +++ b/drivers/mtd/nand/raw/docg4.c @@ -1218,7 +1218,7 @@ static int docg4_resume(struct platform_device *pdev) return 0; } -static void __init init_mtd_structs(struct mtd_info *mtd) +static void init_mtd_structs(struct mtd_info *mtd) { /* initialize mtd and nand data structures */ @@ -1290,7 +1290,7 @@ static void __init init_mtd_structs(struct mtd_info *mtd) } -static int __init read_id_reg(struct mtd_info *mtd) +static int read_id_reg(struct mtd_info *mtd) { struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand_get_controller_data(nand); From 1ab534e85c93945f7862378d8c8adcf408205b19 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Fri, 24 Aug 2018 10:03:51 -0700 Subject: [PATCH 0171/1762] x86/spectre: Add missing family 6 check to microcode check The check for Spectre microcodes does not check for family 6, only the model numbers. Add a family 6 check to avoid ambiguity with other families. Fixes: a5b296636453 ("x86/cpufeature: Blacklist SPEC_CTRL/PRED_CMD on early Spectre v2 microcodes") Signed-off-by: Andi Kleen Signed-off-by: Thomas Gleixner Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180824170351.34874-2-andi@firstfloor.org --- arch/x86/kernel/cpu/intel.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 401e8c133108..fc3c07fe7df5 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -150,6 +150,9 @@ static bool bad_spectre_microcode(struct cpuinfo_x86 *c) if (cpu_has(c, X86_FEATURE_HYPERVISOR)) return false; + if (c->x86 != 6) + return false; + for (i = 0; i < ARRAY_SIZE(spectre_bad_microcodes); i++) { if (c->x86_model == spectre_bad_microcodes[i].model && c->x86_stepping == spectre_bad_microcodes[i].stepping) From cc51e5428ea54f575d49cfcede1d4cb3a72b4ec4 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Fri, 24 Aug 2018 10:03:50 -0700 Subject: [PATCH 0172/1762] x86/speculation/l1tf: Increase l1tf memory limit for Nehalem+ On Nehalem and newer core CPUs the CPU cache internally uses 44 bits physical address space. The L1TF workaround is limited by this internal cache address width, and needs to have one bit free there for the mitigation to work. Older client systems report only 36bit physical address space so the range check decides that L1TF is not mitigated for a 36bit phys/32GB system with some memory holes. But since these actually have the larger internal cache width this warning is bogus because it would only really be needed if the system had more than 43bits of memory. Add a new internal x86_cache_bits field. Normally it is the same as the physical bits field reported by CPUID, but for Nehalem and newerforce it to be at least 44bits. Change the L1TF memory size warning to use the new cache_bits field to avoid bogus warnings and remove the bogus comment about memory size. Fixes: 17dbca119312 ("x86/speculation/l1tf: Add sysfs reporting for l1tf") Reported-by: George Anchev Reported-by: Christopher Snowhill Signed-off-by: Andi Kleen Signed-off-by: Thomas Gleixner Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org Cc: Michael Hocko Cc: vbabka@suse.cz Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180824170351.34874-1-andi@firstfloor.org --- arch/x86/include/asm/processor.h | 4 ++- arch/x86/kernel/cpu/bugs.c | 46 ++++++++++++++++++++++++++++---- arch/x86/kernel/cpu/common.c | 1 + 3 files changed, 45 insertions(+), 6 deletions(-) diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index c24297268ebc..d53c54b842da 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -132,6 +132,8 @@ struct cpuinfo_x86 { /* Index into per_cpu list: */ u16 cpu_index; u32 microcode; + /* Address space bits used by the cache internally */ + u8 x86_cache_bits; unsigned initialized : 1; } __randomize_layout; @@ -183,7 +185,7 @@ extern void cpu_detect(struct cpuinfo_x86 *c); static inline unsigned long long l1tf_pfn_limit(void) { - return BIT_ULL(boot_cpu_data.x86_phys_bits - 1 - PAGE_SHIFT); + return BIT_ULL(boot_cpu_data.x86_cache_bits - 1 - PAGE_SHIFT); } extern void early_cpu_init(void); diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index 4c2313d0b9ca..40bdaea97fe7 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -668,6 +668,45 @@ EXPORT_SYMBOL_GPL(l1tf_mitigation); enum vmx_l1d_flush_state l1tf_vmx_mitigation = VMENTER_L1D_FLUSH_AUTO; EXPORT_SYMBOL_GPL(l1tf_vmx_mitigation); +/* + * These CPUs all support 44bits physical address space internally in the + * cache but CPUID can report a smaller number of physical address bits. + * + * The L1TF mitigation uses the top most address bit for the inversion of + * non present PTEs. When the installed memory reaches into the top most + * address bit due to memory holes, which has been observed on machines + * which report 36bits physical address bits and have 32G RAM installed, + * then the mitigation range check in l1tf_select_mitigation() triggers. + * This is a false positive because the mitigation is still possible due to + * the fact that the cache uses 44bit internally. Use the cache bits + * instead of the reported physical bits and adjust them on the affected + * machines to 44bit if the reported bits are less than 44. + */ +static void override_cache_bits(struct cpuinfo_x86 *c) +{ + if (c->x86 != 6) + return; + + switch (c->x86_model) { + case INTEL_FAM6_NEHALEM: + case INTEL_FAM6_WESTMERE: + case INTEL_FAM6_SANDYBRIDGE: + case INTEL_FAM6_IVYBRIDGE: + case INTEL_FAM6_HASWELL_CORE: + case INTEL_FAM6_HASWELL_ULT: + case INTEL_FAM6_HASWELL_GT3E: + case INTEL_FAM6_BROADWELL_CORE: + case INTEL_FAM6_BROADWELL_GT3E: + case INTEL_FAM6_SKYLAKE_MOBILE: + case INTEL_FAM6_SKYLAKE_DESKTOP: + case INTEL_FAM6_KABYLAKE_MOBILE: + case INTEL_FAM6_KABYLAKE_DESKTOP: + if (c->x86_cache_bits < 44) + c->x86_cache_bits = 44; + break; + } +} + static void __init l1tf_select_mitigation(void) { u64 half_pa; @@ -675,6 +714,8 @@ static void __init l1tf_select_mitigation(void) if (!boot_cpu_has_bug(X86_BUG_L1TF)) return; + override_cache_bits(&boot_cpu_data); + switch (l1tf_mitigation) { case L1TF_MITIGATION_OFF: case L1TF_MITIGATION_FLUSH_NOWARN: @@ -694,11 +735,6 @@ static void __init l1tf_select_mitigation(void) return; #endif - /* - * This is extremely unlikely to happen because almost all - * systems have far more MAX_PA/2 than RAM can be fit into - * DIMM slots. - */ half_pa = (u64)l1tf_pfn_limit() << PAGE_SHIFT; if (e820__mapped_any(half_pa, ULLONG_MAX - half_pa, E820_TYPE_RAM)) { pr_warn("System has more than MAX_PA/2 memory. L1TF mitigation not effective.\n"); diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 84dee5ab745a..44c4ef3d989b 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -919,6 +919,7 @@ void get_cpu_address_sizes(struct cpuinfo_x86 *c) else if (cpu_has(c, X86_FEATURE_PAE) || cpu_has(c, X86_FEATURE_PSE36)) c->x86_phys_bits = 36; #endif + c->x86_cache_bits = c->x86_phys_bits; } static void identify_cpu_without_cpuid(struct cpuinfo_x86 *c) From e3a5dc08715abba646324fd8456282bd77798e9c Mon Sep 17 00:00:00 2001 From: Nikolas Nyby Date: Sat, 25 Aug 2018 19:10:54 -0400 Subject: [PATCH 0173/1762] x86/Kconfig: Fix trivial typo Fix a typo in the Kconfig help text: adverticed -> advertised. Signed-off-by: Nikolas Nyby Signed-off-by: Thomas Gleixner Cc: trivial@kernel.org Cc: tglx@linutronix.de Cc: x86@kernel.org Link: https://lkml.kernel.org/r/20180825231054.23813-1-nikolas@gnu.org --- arch/x86/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index c5ff296bc5d1..1a0be022f91d 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2843,7 +2843,7 @@ config X86_SYSFB This option, if enabled, marks VGA/VBE/EFI framebuffers as generic framebuffers so the new generic system-framebuffer drivers can be used on x86. If the framebuffer is not compatible with the generic - modes, it is adverticed as fallback platform framebuffer so legacy + modes, it is advertised as fallback platform framebuffer so legacy drivers like efifb, vesafb and uvesafb can pick it up. If this option is not selected, all system framebuffers are always marked as fallback platform framebuffers as usual. From 691a03cfe8ca483f9c48153b869d354e4ae3abef Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 21 Aug 2018 11:59:52 +0200 Subject: [PATCH 0174/1762] USB: serial: io_ti: fix array underflow in completion handler As reported by Dan Carpenter, a malicious USB device could set port_number to a negative value and we would underflow the port array in the interrupt completion handler. As these devices only have one or two ports, fix this by making sure we only consider the seventh bit when determining the port number (and ignore bits 0xb0 which are typically set to 0x30). Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable Reported-by: Dan Carpenter Signed-off-by: Johan Hovold --- drivers/usb/serial/io_ti.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/io_ti.h b/drivers/usb/serial/io_ti.h index e53c68261017..9bbcee37524e 100644 --- a/drivers/usb/serial/io_ti.h +++ b/drivers/usb/serial/io_ti.h @@ -173,7 +173,7 @@ struct ump_interrupt { } __attribute__((packed)); -#define TIUMP_GET_PORT_FROM_CODE(c) (((c) >> 4) - 3) +#define TIUMP_GET_PORT_FROM_CODE(c) (((c) >> 6) & 0x01) #define TIUMP_GET_FUNC_FROM_CODE(c) ((c) & 0x0f) #define TIUMP_INTERRUPT_CODE_LSR 0x03 #define TIUMP_INTERRUPT_CODE_MSR 0x04 From 5dfdd24eb3d39d815bc952ae98128e967c9bba49 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 21 Aug 2018 11:59:53 +0200 Subject: [PATCH 0175/1762] USB: serial: ti_usb_3410_5052: fix array underflow in completion handler Similarly to a recently reported bug in io_ti, a malicious USB device could set port_number to a negative value and we would underflow the port array in the interrupt completion handler. As these devices only have one or two ports, fix this by making sure we only consider the seventh bit when determining the port number (and ignore bits 0xb0 which are typically set to 0x30). Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable Signed-off-by: Johan Hovold --- drivers/usb/serial/ti_usb_3410_5052.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 3010878f7f8e..e3c5832337e0 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -1119,7 +1119,7 @@ static void ti_break(struct tty_struct *tty, int break_state) static int ti_get_port_from_code(unsigned char code) { - return (code >> 4) - 3; + return (code >> 6) & 0x01; } static int ti_get_func_from_code(unsigned char code) From 4d982e25d0bdc83d8c64e66fdeca0b89240b3b85 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 27 Aug 2018 09:22:45 -0400 Subject: [PATCH 0176/1762] ext4: avoid divide by zero fault when deleting corrupted inline directories A specially crafted file system can trick empty_inline_dir() into reading past the last valid entry in a inline directory, and then run into the end of xattr marker. This will trigger a divide by zero fault. Fix this by using the size of the inline directory instead of dir->i_size. Also clean up error reporting in __ext4_check_dir_entry so that the message is clearer and more understandable --- and avoids the division by zero trap if the size passed in is zero. (I'm not sure why we coded it that way in the first place; printing offset % size is actually more confusing and less useful.) https://bugzilla.kernel.org/show_bug.cgi?id=200933 Signed-off-by: Theodore Ts'o Reported-by: Wen Xu Cc: stable@vger.kernel.org --- fs/ext4/dir.c | 20 +++++++++----------- fs/ext4/inline.c | 4 +++- 2 files changed, 12 insertions(+), 12 deletions(-) diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c index e2902d394f1b..f93f9881ec18 100644 --- a/fs/ext4/dir.c +++ b/fs/ext4/dir.c @@ -76,7 +76,7 @@ int __ext4_check_dir_entry(const char *function, unsigned int line, else if (unlikely(rlen < EXT4_DIR_REC_LEN(de->name_len))) error_msg = "rec_len is too small for name_len"; else if (unlikely(((char *) de - buf) + rlen > size)) - error_msg = "directory entry across range"; + error_msg = "directory entry overrun"; else if (unlikely(le32_to_cpu(de->inode) > le32_to_cpu(EXT4_SB(dir->i_sb)->s_es->s_inodes_count))) error_msg = "inode out of bounds"; @@ -85,18 +85,16 @@ int __ext4_check_dir_entry(const char *function, unsigned int line, if (filp) ext4_error_file(filp, function, line, bh->b_blocknr, - "bad entry in directory: %s - offset=%u(%u), " - "inode=%u, rec_len=%d, name_len=%d", - error_msg, (unsigned) (offset % size), - offset, le32_to_cpu(de->inode), - rlen, de->name_len); + "bad entry in directory: %s - offset=%u, " + "inode=%u, rec_len=%d, name_len=%d, size=%d", + error_msg, offset, le32_to_cpu(de->inode), + rlen, de->name_len, size); else ext4_error_inode(dir, function, line, bh->b_blocknr, - "bad entry in directory: %s - offset=%u(%u), " - "inode=%u, rec_len=%d, name_len=%d", - error_msg, (unsigned) (offset % size), - offset, le32_to_cpu(de->inode), - rlen, de->name_len); + "bad entry in directory: %s - offset=%u, " + "inode=%u, rec_len=%d, name_len=%d, size=%d", + error_msg, offset, le32_to_cpu(de->inode), + rlen, de->name_len, size); return 1; } diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c index 3543fe80a3c4..7b4736022761 100644 --- a/fs/ext4/inline.c +++ b/fs/ext4/inline.c @@ -1753,6 +1753,7 @@ bool empty_inline_dir(struct inode *dir, int *has_inline_data) { int err, inline_size; struct ext4_iloc iloc; + size_t inline_len; void *inline_pos; unsigned int offset; struct ext4_dir_entry_2 *de; @@ -1780,8 +1781,9 @@ bool empty_inline_dir(struct inode *dir, int *has_inline_data) goto out; } + inline_len = ext4_get_inline_size(dir); offset = EXT4_INLINE_DOTDOT_SIZE; - while (offset < dir->i_size) { + while (offset < inline_len) { de = ext4_get_inline_entry(dir, &iloc, offset, &inline_pos, &inline_size); if (ext4_check_dir_entry(dir, NULL, de, From f7c90c2aa4004808dff777ba6ae2c7294dd06851 Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Tue, 21 Aug 2018 17:37:54 +0200 Subject: [PATCH 0177/1762] x86/xen: don't write ptes directly in 32-bit PV guests In some cases 32-bit PAE PV guests still write PTEs directly instead of using hypercalls. This is especially bad when clearing a PTE as this is done via 32-bit writes which will produce intermediate L1TF attackable PTEs. Change the code to use hypercalls instead. Signed-off-by: Juergen Gross Reviewed-by: Jan Beulich Signed-off-by: Boris Ostrovsky --- arch/x86/xen/mmu_pv.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c index 9e7012858420..9396b4d17064 100644 --- a/arch/x86/xen/mmu_pv.c +++ b/arch/x86/xen/mmu_pv.c @@ -434,14 +434,13 @@ static void xen_set_pud(pud_t *ptr, pud_t val) static void xen_set_pte_atomic(pte_t *ptep, pte_t pte) { trace_xen_mmu_set_pte_atomic(ptep, pte); - set_64bit((u64 *)ptep, native_pte_val(pte)); + __xen_set_pte(ptep, pte); } static void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { trace_xen_mmu_pte_clear(mm, addr, ptep); - if (!xen_batched_set_pte(ptep, native_make_pte(0))) - native_pte_clear(mm, addr, ptep); + __xen_set_pte(ptep, native_make_pte(0)); } static void xen_pmd_clear(pmd_t *pmdp) @@ -1569,7 +1568,7 @@ static void __init xen_set_pte_init(pte_t *ptep, pte_t pte) pte = __pte_ma(((pte_val_ma(*ptep) & _PAGE_RW) | ~_PAGE_RW) & pte_val_ma(pte)); #endif - native_set_pte(ptep, pte); + __xen_set_pte(ptep, pte); } /* Early in boot, while setting up the initial pagetable, assume From 908946c4bee705542f38bc06c0203a6d83e3700c Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Mon, 27 Aug 2018 08:37:46 -0600 Subject: [PATCH 0178/1762] Fix up libata MAINTAINERS entry The email was botched in one entry, and I also forgot to update the location of the git tree. It'll be under the linux-block umbrella, just with different branches. Reported-by: Baruch Siach Fixes: 7634ccd2da97 ("libata: maintainership update") Signed-off-by: Jens Axboe Signed-off-by: Linus Torvalds --- MAINTAINERS | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index a5b256b25905..9ad052aeac39 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8255,9 +8255,9 @@ F: drivers/ata/pata_arasan_cf.c LIBATA PATA DRIVERS M: Bartlomiej Zolnierkiewicz -M: Jens Axboe +M: Jens Axboe L: linux-ide@vger.kernel.org -T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git S: Maintained F: drivers/ata/pata_*.c F: drivers/ata/ata_generic.c @@ -8275,7 +8275,7 @@ LIBATA SATA AHCI PLATFORM devices support M: Hans de Goede M: Jens Axboe L: linux-ide@vger.kernel.org -T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git S: Maintained F: drivers/ata/ahci_platform.c F: drivers/ata/libahci_platform.c @@ -8291,7 +8291,7 @@ F: drivers/ata/sata_promise.* LIBATA SUBSYSTEM (Serial and Parallel ATA drivers) M: Jens Axboe L: linux-ide@vger.kernel.org -T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git S: Maintained F: drivers/ata/ F: include/linux/ata.h From 4051c323c59b535cfb7dc10b349544b4ad49c21e Mon Sep 17 00:00:00 2001 From: Alexey Brodkin Date: Thu, 2 Aug 2018 11:41:07 +0300 Subject: [PATCH 0179/1762] ARC: configs: cleanup - Remove CONFIG_DEFAULT_HOSTNAME from defconfigs There's no reason to set the same hostname to all ARC boards by default. It usually gets overwritten by init scripts anyways. - Remove disabled CONFIG_DEVKMEM from defconfigs It is disabled by default Signed-off-by: Alexey Brodkin Signed-off-by: Vineet Gupta --- arch/arc/configs/axs101_defconfig | 2 -- arch/arc/configs/axs103_defconfig | 2 -- arch/arc/configs/axs103_smp_defconfig | 2 -- arch/arc/configs/haps_hs_defconfig | 2 -- arch/arc/configs/haps_hs_smp_defconfig | 2 -- arch/arc/configs/hsdk_defconfig | 1 - arch/arc/configs/nps_defconfig | 1 - arch/arc/configs/nsim_700_defconfig | 2 -- arch/arc/configs/nsim_hs_defconfig | 2 -- arch/arc/configs/nsim_hs_smp_defconfig | 2 -- arch/arc/configs/nsimosci_defconfig | 2 -- arch/arc/configs/nsimosci_hs_defconfig | 2 -- arch/arc/configs/nsimosci_hs_smp_defconfig | 2 -- arch/arc/configs/tb10x_defconfig | 1 - arch/arc/configs/vdk_hs38_defconfig | 2 -- arch/arc/configs/vdk_hs38_smp_defconfig | 1 - 16 files changed, 28 deletions(-) diff --git a/arch/arc/configs/axs101_defconfig b/arch/arc/configs/axs101_defconfig index a635ea972304..41a97eb7598d 100644 --- a/arch/arc/configs/axs101_defconfig +++ b/arch/arc/configs/axs101_defconfig @@ -1,4 +1,3 @@ -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y @@ -63,7 +62,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y CONFIG_MOUSE_SERIAL=y CONFIG_MOUSE_SYNAPTICS_USB=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_DW=y diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig index aa507e423075..d8e2ca2385cc 100644 --- a/arch/arc/configs/axs103_defconfig +++ b/arch/arc/configs/axs103_defconfig @@ -1,4 +1,3 @@ -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y @@ -64,7 +63,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y CONFIG_MOUSE_SERIAL=y CONFIG_MOUSE_SYNAPTICS_USB=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_DW=y diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig index eba07f468654..1e729b9726cd 100644 --- a/arch/arc/configs/axs103_smp_defconfig +++ b/arch/arc/configs/axs103_smp_defconfig @@ -1,4 +1,3 @@ -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y @@ -65,7 +64,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y CONFIG_MOUSE_SERIAL=y CONFIG_MOUSE_SYNAPTICS_USB=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_DW=y diff --git a/arch/arc/configs/haps_hs_defconfig b/arch/arc/configs/haps_hs_defconfig index 098b19fbaa51..240dd2cd5148 100644 --- a/arch/arc/configs/haps_hs_defconfig +++ b/arch/arc/configs/haps_hs_defconfig @@ -1,4 +1,3 @@ -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y @@ -57,7 +56,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y # CONFIG_SERIO_SERPORT is not set CONFIG_SERIO_ARC_PS2=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_NR_UARTS=1 diff --git a/arch/arc/configs/haps_hs_smp_defconfig b/arch/arc/configs/haps_hs_smp_defconfig index 0104c404d897..14ae7e5acc7c 100644 --- a/arch/arc/configs/haps_hs_smp_defconfig +++ b/arch/arc/configs/haps_hs_smp_defconfig @@ -1,4 +1,3 @@ -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y @@ -60,7 +59,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y # CONFIG_SERIO_SERPORT is not set CONFIG_SERIO_ARC_PS2=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_NR_UARTS=1 diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig index 6491be0ddbc9..1dec2b4bc5e6 100644 --- a/arch/arc/configs/hsdk_defconfig +++ b/arch/arc/configs/hsdk_defconfig @@ -1,4 +1,3 @@ -CONFIG_DEFAULT_HOSTNAME="ARCLinux" CONFIG_SYSVIPC=y # CONFIG_CROSS_MEMORY_ATTACH is not set CONFIG_NO_HZ_IDLE=y diff --git a/arch/arc/configs/nps_defconfig b/arch/arc/configs/nps_defconfig index 7c9c706ae7f6..31ba224bbfb4 100644 --- a/arch/arc/configs/nps_defconfig +++ b/arch/arc/configs/nps_defconfig @@ -59,7 +59,6 @@ CONFIG_NETCONSOLE=y # CONFIG_INPUT_MOUSE is not set # CONFIG_SERIO is not set # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_NR_UARTS=1 diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig index 99e05cf63fca..8e0b8b134cd9 100644 --- a/arch/arc/configs/nsim_700_defconfig +++ b/arch/arc/configs/nsim_700_defconfig @@ -1,5 +1,4 @@ # CONFIG_LOCALVERSION_AUTO is not set -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y @@ -44,7 +43,6 @@ CONFIG_LXT_PHY=y # CONFIG_INPUT_MOUSE is not set # CONFIG_SERIO is not set # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_ARC=y CONFIG_SERIAL_ARC_CONSOLE=y # CONFIG_HW_RANDOM is not set diff --git a/arch/arc/configs/nsim_hs_defconfig b/arch/arc/configs/nsim_hs_defconfig index 0dc4f9b737e7..739b90e5e893 100644 --- a/arch/arc/configs/nsim_hs_defconfig +++ b/arch/arc/configs/nsim_hs_defconfig @@ -1,5 +1,4 @@ # CONFIG_LOCALVERSION_AUTO is not set -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y @@ -45,7 +44,6 @@ CONFIG_DEVTMPFS=y # CONFIG_INPUT_MOUSE is not set # CONFIG_SERIO is not set # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_ARC=y CONFIG_SERIAL_ARC_CONSOLE=y # CONFIG_HW_RANDOM is not set diff --git a/arch/arc/configs/nsim_hs_smp_defconfig b/arch/arc/configs/nsim_hs_smp_defconfig index be3c30a15e54..b5895bdf3a93 100644 --- a/arch/arc/configs/nsim_hs_smp_defconfig +++ b/arch/arc/configs/nsim_hs_smp_defconfig @@ -1,5 +1,4 @@ # CONFIG_LOCALVERSION_AUTO is not set -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set # CONFIG_CROSS_MEMORY_ATTACH is not set CONFIG_HIGH_RES_TIMERS=y @@ -44,7 +43,6 @@ CONFIG_DEVTMPFS=y # CONFIG_INPUT_MOUSE is not set # CONFIG_SERIO is not set # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_ARC=y CONFIG_SERIAL_ARC_CONSOLE=y # CONFIG_HW_RANDOM is not set diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig index 3a74b9b21772..f14eeff7d308 100644 --- a/arch/arc/configs/nsimosci_defconfig +++ b/arch/arc/configs/nsimosci_defconfig @@ -1,5 +1,4 @@ # CONFIG_LOCALVERSION_AUTO is not set -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y # CONFIG_CROSS_MEMORY_ATTACH is not set @@ -48,7 +47,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y # CONFIG_SERIO_SERPORT is not set CONFIG_SERIO_ARC_PS2=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_NR_UARTS=1 diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig index ea2834b4dc1d..025298a48305 100644 --- a/arch/arc/configs/nsimosci_hs_defconfig +++ b/arch/arc/configs/nsimosci_hs_defconfig @@ -1,5 +1,4 @@ # CONFIG_LOCALVERSION_AUTO is not set -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y # CONFIG_CROSS_MEMORY_ATTACH is not set @@ -47,7 +46,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y # CONFIG_SERIO_SERPORT is not set CONFIG_SERIO_ARC_PS2=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_NR_UARTS=1 diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig index 80a5a1b4924b..df7b77b13b82 100644 --- a/arch/arc/configs/nsimosci_hs_smp_defconfig +++ b/arch/arc/configs/nsimosci_hs_smp_defconfig @@ -1,4 +1,3 @@ -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y # CONFIG_CROSS_MEMORY_ATTACH is not set @@ -58,7 +57,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y # CONFIG_SERIO_SERPORT is not set CONFIG_SERIO_ARC_PS2=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_NR_UARTS=1 diff --git a/arch/arc/configs/tb10x_defconfig b/arch/arc/configs/tb10x_defconfig index 2cc87f909747..a7f65313f84a 100644 --- a/arch/arc/configs/tb10x_defconfig +++ b/arch/arc/configs/tb10x_defconfig @@ -57,7 +57,6 @@ CONFIG_STMMAC_ETH=y # CONFIG_SERIO is not set # CONFIG_VT is not set # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_NR_UARTS=1 diff --git a/arch/arc/configs/vdk_hs38_defconfig b/arch/arc/configs/vdk_hs38_defconfig index f629493929ea..db47c3541f15 100644 --- a/arch/arc/configs/vdk_hs38_defconfig +++ b/arch/arc/configs/vdk_hs38_defconfig @@ -1,5 +1,4 @@ # CONFIG_LOCALVERSION_AUTO is not set -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_CROSS_MEMORY_ATTACH is not set CONFIG_HIGH_RES_TIMERS=y CONFIG_IKCONFIG=y @@ -53,7 +52,6 @@ CONFIG_NATIONAL_PHY=y CONFIG_MOUSE_PS2_TOUCHKIT=y CONFIG_SERIO_ARC_PS2=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_DW=y diff --git a/arch/arc/configs/vdk_hs38_smp_defconfig b/arch/arc/configs/vdk_hs38_smp_defconfig index 21f0ca26a05d..a8ac5e917d9a 100644 --- a/arch/arc/configs/vdk_hs38_smp_defconfig +++ b/arch/arc/configs/vdk_hs38_smp_defconfig @@ -1,5 +1,4 @@ # CONFIG_LOCALVERSION_AUTO is not set -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_CROSS_MEMORY_ATTACH is not set CONFIG_HIGH_RES_TIMERS=y CONFIG_IKCONFIG=y From 5c0920897af59779546e9ea0e89c5db45c8aff33 Mon Sep 17 00:00:00 2001 From: Alexey Brodkin Date: Thu, 2 Aug 2018 13:19:37 +0300 Subject: [PATCH 0180/1762] ARC: [plat-axs*/plat-hsdk]: Allow U-Boot to pass MAC-address to the kernel Otherwise kernel uses random MAC which is not very conveniet. With that change in place use might set desired MAC in U-Boot with "setenv ethaddr 11:22:33:44:55:66", save environment and then from boot to boot the same MAC will be used by the kernel. One other note for this to happen it's required to pass board's .dtb in U-Boot's "bootm" command like that: ------------------->8----------------- bootm 0x82000000 - 0x84000000 ------------------->8----------------- Here 0x82000000 is location of uImage while 0x80000000 is location of either axs10x.dtb or hsdk.dtb previously loaded from SD-card, USB storage or TFTP server. Signed-off-by: Alexey Brodkin Cc: Rob Herring Cc: stable@vger.kernel.org # 4.14 Cc: devicetree@vger.kernel.org Signed-off-by: Vineet Gupta --- arch/arc/boot/dts/axs10x_mb.dtsi | 7 ++++++- arch/arc/boot/dts/hsdk.dts | 7 ++++++- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi index 47b74fbc403c..37bafd44e36d 100644 --- a/arch/arc/boot/dts/axs10x_mb.dtsi +++ b/arch/arc/boot/dts/axs10x_mb.dtsi @@ -9,6 +9,10 @@ */ / { + aliases { + ethernet = &gmac; + }; + axs10x_mb { compatible = "simple-bus"; #address-cells = <1>; @@ -68,7 +72,7 @@ }; }; - ethernet@0x18000 { + gmac: ethernet@0x18000 { #interrupt-cells = <1>; compatible = "snps,dwmac"; reg = < 0x18000 0x2000 >; @@ -81,6 +85,7 @@ max-speed = <100>; resets = <&creg_rst 5>; reset-names = "stmmaceth"; + mac-address = [00 00 00 00 00 00]; /* Filled in by U-Boot */ }; ehci@0x40000 { diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts index 006aa3de5348..d00f283094d3 100644 --- a/arch/arc/boot/dts/hsdk.dts +++ b/arch/arc/boot/dts/hsdk.dts @@ -25,6 +25,10 @@ bootargs = "earlycon=uart8250,mmio32,0xf0005000,115200n8 console=ttyS0,115200n8 debug print-fatal-signals=1"; }; + aliases { + ethernet = &gmac; + }; + cpus { #address-cells = <1>; #size-cells = <0>; @@ -163,7 +167,7 @@ #clock-cells = <0>; }; - ethernet@8000 { + gmac: ethernet@8000 { #interrupt-cells = <1>; compatible = "snps,dwmac"; reg = <0x8000 0x2000>; @@ -176,6 +180,7 @@ phy-handle = <&phy0>; resets = <&cgu_rst HSDK_ETH_RESET>; reset-names = "stmmaceth"; + mac-address = [00 00 00 00 00 00]; /* Filled in by U-Boot */ mdio { #address-cells = <1>; From c83532fb0fe053d2e43e9387354cb1b52ba26427 Mon Sep 17 00:00:00 2001 From: Alexey Brodkin Date: Thu, 2 Aug 2018 11:50:16 +0300 Subject: [PATCH 0181/1762] ARC: [plat-axs*]: Enable SWAP SWAP support on ARC was fixed earlier by commit 6e3761145a9b ("ARC: Fix CONFIG_SWAP") so now we may safely enable it on platforms that have external media like USB and SD-card. Note: it was already allowed for HSDK Signed-off-by: Alexey Brodkin Cc: stable@vger.kernel.org # 6e3761145a9b: ARC: Fix CONFIG_SWAP Signed-off-by: Vineet Gupta --- arch/arc/configs/axs101_defconfig | 1 - arch/arc/configs/axs103_defconfig | 1 - arch/arc/configs/axs103_smp_defconfig | 1 - 3 files changed, 3 deletions(-) diff --git a/arch/arc/configs/axs101_defconfig b/arch/arc/configs/axs101_defconfig index 41a97eb7598d..41bc08be6a3b 100644 --- a/arch/arc/configs/axs101_defconfig +++ b/arch/arc/configs/axs101_defconfig @@ -1,4 +1,3 @@ -# CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_CROSS_MEMORY_ATTACH is not set diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig index d8e2ca2385cc..1e1c4a8011b5 100644 --- a/arch/arc/configs/axs103_defconfig +++ b/arch/arc/configs/axs103_defconfig @@ -1,4 +1,3 @@ -# CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_CROSS_MEMORY_ATTACH is not set diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig index 1e729b9726cd..6b0c0cfd5c30 100644 --- a/arch/arc/configs/axs103_smp_defconfig +++ b/arch/arc/configs/axs103_smp_defconfig @@ -1,4 +1,3 @@ -# CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_CROSS_MEMORY_ATTACH is not set From 1e3bece2ded71eb85ac297a43002a942964e381d Mon Sep 17 00:00:00 2001 From: Eugeniy Paltsev Date: Mon, 6 Aug 2018 19:44:23 +0300 Subject: [PATCH 0182/1762] ARC: cleanup show_faulting_vma() - Remove unused variables - check return value of file_path Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta --- arch/arc/kernel/troubleshoot.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c index 783b20354f8b..e8d9fb452346 100644 --- a/arch/arc/kernel/troubleshoot.c +++ b/arch/arc/kernel/troubleshoot.c @@ -83,9 +83,6 @@ done: static void show_faulting_vma(unsigned long address, char *buf) { struct vm_area_struct *vma; - struct inode *inode; - unsigned long ino = 0; - dev_t dev = 0; char *nm = buf; struct mm_struct *active_mm = current->active_mm; @@ -99,12 +96,10 @@ static void show_faulting_vma(unsigned long address, char *buf) * if the container VMA is not found */ if (vma && (vma->vm_start <= address)) { - struct file *file = vma->vm_file; - if (file) { - nm = file_path(file, buf, PAGE_SIZE - 1); - inode = file_inode(vma->vm_file); - dev = inode->i_sb->s_dev; - ino = inode->i_ino; + if (vma->vm_file) { + nm = file_path(vma->vm_file, buf, PAGE_SIZE - 1); + if (IS_ERR(nm)) + nm = "?"; } pr_info(" @off 0x%lx in [%s]\n" " VMA: 0x%08lx to 0x%08lx\n", From c27d0e9045bbbabffdde2bdba74e9971c4194ac4 Mon Sep 17 00:00:00 2001 From: Vineet Gupta Date: Thu, 16 Aug 2018 10:20:33 -0700 Subject: [PATCH 0183/1762] ARC: sort Kconfig Signed-off-by: Vineet Gupta --- arch/arc/Kconfig | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 6d5eb8267e42..b4441b0764d7 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -9,6 +9,7 @@ config ARC def_bool y select ARC_TIMERS + select ARCH_HAS_PTE_SPECIAL select ARCH_HAS_SYNC_DMA_FOR_CPU select ARCH_HAS_SYNC_DMA_FOR_DEVICE select ARCH_HAS_SG_CHAIN @@ -28,8 +29,12 @@ config ARC select GENERIC_SMP_IDLE_THREAD select HAVE_ARCH_KGDB select HAVE_ARCH_TRACEHOOK + select HAVE_DEBUG_STACKOVERFLOW select HAVE_FUTEX_CMPXCHG if FUTEX + select HAVE_GENERIC_DMA_COHERENT select HAVE_IOREMAP_PROT + select HAVE_KERNEL_GZIP + select HAVE_KERNEL_LZMA select HAVE_KPROBES select HAVE_KRETPROBES select HAVE_MEMBLOCK @@ -44,11 +49,6 @@ config ARC select OF_EARLY_FLATTREE select OF_RESERVED_MEM select PERF_USE_VMALLOC if ARC_CACHE_VIPT_ALIASING - select HAVE_DEBUG_STACKOVERFLOW - select HAVE_GENERIC_DMA_COHERENT - select HAVE_KERNEL_GZIP - select HAVE_KERNEL_LZMA - select ARCH_HAS_PTE_SPECIAL config ARCH_HAS_CACHE_LINE_SIZE def_bool y From 973e5405f2f67ddbb2bf07b3ffc71908a37fea8e Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Mon, 13 Aug 2018 16:01:10 +0200 Subject: [PATCH 0184/1762] xen/blkback: don't keep persistent grants too long MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Persistent grants are allocated until a threshold per ring is being reached. Those grants won't be freed until the ring is being destroyed meaning there will be resources kept busy which might no longer be used. Instead of freeing only persistent grants until the threshold is reached add a timestamp and remove all persistent grants not having been in use for a minute. Signed-off-by: Juergen Gross Reviewed-by: Roger Pau Monné Signed-off-by: Konrad Rzeszutek Wilk --- .../ABI/testing/sysfs-driver-xen-blkback | 10 +++ drivers/block/xen-blkback/blkback.c | 90 ++++++++++--------- drivers/block/xen-blkback/common.h | 8 +- 3 files changed, 61 insertions(+), 47 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-driver-xen-blkback b/Documentation/ABI/testing/sysfs-driver-xen-blkback index 8bb43b66eb55..4e7babb3ba1f 100644 --- a/Documentation/ABI/testing/sysfs-driver-xen-blkback +++ b/Documentation/ABI/testing/sysfs-driver-xen-blkback @@ -15,3 +15,13 @@ Description: blkback. If the frontend tries to use more than max_persistent_grants, the LRU kicks in and starts removing 5% of max_persistent_grants every 100ms. + +What: /sys/module/xen_blkback/parameters/persistent_grant_unused_seconds +Date: August 2018 +KernelVersion: 4.19 +Contact: Roger Pau Monné +Description: + How long a persistent grant is allowed to remain + allocated without being in use. The time is in + seconds, 0 means indefinitely long. + The default is 60 seconds. diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index b55b245e8052..9eae7b243f68 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -83,6 +83,18 @@ module_param_named(max_persistent_grants, xen_blkif_max_pgrants, int, 0644); MODULE_PARM_DESC(max_persistent_grants, "Maximum number of grants to map persistently"); +/* + * How long a persistent grant is allowed to remain allocated without being in + * use. The time is in seconds, 0 means indefinitely long. + */ + +static unsigned int xen_blkif_pgrant_timeout = 60; +module_param_named(persistent_grant_unused_seconds, xen_blkif_pgrant_timeout, + uint, 0644); +MODULE_PARM_DESC(persistent_grant_unused_seconds, + "Time in seconds an unused persistent grant is allowed to " + "remain allocated. Default is 60, 0 means unlimited."); + /* * Maximum number of rings/queues blkback supports, allow as many queues as there * are CPUs if user has not specified a value. @@ -123,6 +135,13 @@ module_param(log_stats, int, 0644); /* Number of free pages to remove on each call to gnttab_free_pages */ #define NUM_BATCH_FREE_PAGES 10 +static inline bool persistent_gnt_timeout(struct persistent_gnt *persistent_gnt) +{ + return xen_blkif_pgrant_timeout && + (jiffies - persistent_gnt->last_used >= + HZ * xen_blkif_pgrant_timeout); +} + static inline int get_free_page(struct xen_blkif_ring *ring, struct page **page) { unsigned long flags; @@ -278,7 +297,7 @@ static void put_persistent_gnt(struct xen_blkif_ring *ring, { if(!test_bit(PERSISTENT_GNT_ACTIVE, persistent_gnt->flags)) pr_alert_ratelimited("freeing a grant already unused\n"); - set_bit(PERSISTENT_GNT_WAS_ACTIVE, persistent_gnt->flags); + persistent_gnt->last_used = jiffies; clear_bit(PERSISTENT_GNT_ACTIVE, persistent_gnt->flags); atomic_dec(&ring->persistent_gnt_in_use); } @@ -371,26 +390,26 @@ static void purge_persistent_gnt(struct xen_blkif_ring *ring) struct persistent_gnt *persistent_gnt; struct rb_node *n; unsigned int num_clean, total; - bool scan_used = false, clean_used = false; + bool scan_used = false; struct rb_root *root; - if (ring->persistent_gnt_c < xen_blkif_max_pgrants || - (ring->persistent_gnt_c == xen_blkif_max_pgrants && - !ring->blkif->vbd.overflow_max_grants)) { - goto out; - } - if (work_busy(&ring->persistent_purge_work)) { pr_alert_ratelimited("Scheduled work from previous purge is still busy, cannot purge list\n"); goto out; } - num_clean = (xen_blkif_max_pgrants / 100) * LRU_PERCENT_CLEAN; - num_clean = ring->persistent_gnt_c - xen_blkif_max_pgrants + num_clean; - num_clean = min(ring->persistent_gnt_c, num_clean); - if ((num_clean == 0) || - (num_clean > (ring->persistent_gnt_c - atomic_read(&ring->persistent_gnt_in_use)))) - goto out; + if (ring->persistent_gnt_c < xen_blkif_max_pgrants || + (ring->persistent_gnt_c == xen_blkif_max_pgrants && + !ring->blkif->vbd.overflow_max_grants)) { + num_clean = 0; + } else { + num_clean = (xen_blkif_max_pgrants / 100) * LRU_PERCENT_CLEAN; + num_clean = ring->persistent_gnt_c - xen_blkif_max_pgrants + + num_clean; + num_clean = min(ring->persistent_gnt_c, num_clean); + pr_debug("Going to purge at least %u persistent grants\n", + num_clean); + } /* * At this point, we can assure that there will be no calls @@ -401,9 +420,7 @@ static void purge_persistent_gnt(struct xen_blkif_ring *ring) * number of grants. */ - total = num_clean; - - pr_debug("Going to purge %u persistent grants\n", num_clean); + total = 0; BUG_ON(!list_empty(&ring->persistent_purge_list)); root = &ring->persistent_gnts; @@ -412,47 +429,38 @@ purge_list: BUG_ON(persistent_gnt->handle == BLKBACK_INVALID_HANDLE); - if (clean_used) { - clear_bit(PERSISTENT_GNT_WAS_ACTIVE, persistent_gnt->flags); - continue; - } - if (test_bit(PERSISTENT_GNT_ACTIVE, persistent_gnt->flags)) continue; - if (!scan_used && - (test_bit(PERSISTENT_GNT_WAS_ACTIVE, persistent_gnt->flags))) + if (!scan_used && !persistent_gnt_timeout(persistent_gnt)) + continue; + if (scan_used && total >= num_clean) continue; rb_erase(&persistent_gnt->node, root); list_add(&persistent_gnt->remove_node, &ring->persistent_purge_list); - if (--num_clean == 0) - goto finished; + total++; } /* - * If we get here it means we also need to start cleaning + * Check whether we also need to start cleaning * grants that were used since last purge in order to cope * with the requested num */ - if (!scan_used && !clean_used) { - pr_debug("Still missing %u purged frames\n", num_clean); + if (!scan_used && total < num_clean) { + pr_debug("Still missing %u purged frames\n", num_clean - total); scan_used = true; goto purge_list; } -finished: - if (!clean_used) { - pr_debug("Finished scanning for grants to clean, removing used flag\n"); - clean_used = true; - goto purge_list; + + if (total) { + ring->persistent_gnt_c -= total; + ring->blkif->vbd.overflow_max_grants = 0; + + /* We can defer this work */ + schedule_work(&ring->persistent_purge_work); + pr_debug("Purged %u/%u\n", num_clean, total); } - ring->persistent_gnt_c -= (total - num_clean); - ring->blkif->vbd.overflow_max_grants = 0; - - /* We can defer this work */ - schedule_work(&ring->persistent_purge_work); - pr_debug("Purged %u/%u\n", (total - num_clean), total); - out: return; } diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index ecb35fe8ca8d..7bff72db3b7e 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -234,14 +234,9 @@ struct xen_vbd { struct backend_info; /* Number of available flags */ -#define PERSISTENT_GNT_FLAGS_SIZE 2 +#define PERSISTENT_GNT_FLAGS_SIZE 1 /* This persistent grant is currently in use */ #define PERSISTENT_GNT_ACTIVE 0 -/* - * This persistent grant has been used, this flag is set when we remove the - * PERSISTENT_GNT_ACTIVE, to know that this grant has been used recently. - */ -#define PERSISTENT_GNT_WAS_ACTIVE 1 /* Number of requests that we can fit in a ring */ #define XEN_BLKIF_REQS_PER_PAGE 32 @@ -250,6 +245,7 @@ struct persistent_gnt { struct page *page; grant_ref_t gnt; grant_handle_t handle; + unsigned long last_used; DECLARE_BITMAP(flags, PERSISTENT_GNT_FLAGS_SIZE); struct rb_node node; struct list_head remove_node; From a46b53672b2c2e3770b38a4abf90d16364d2584b Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Mon, 13 Aug 2018 16:01:11 +0200 Subject: [PATCH 0185/1762] xen/blkfront: cleanup stale persistent grants MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add a periodic cleanup function to remove old persistent grants which are no longer in use on the backend side. This avoids starvation in case there are lots of persistent grants for a device which no longer is involved in I/O business. Signed-off-by: Juergen Gross Reviewed-by: Roger Pau Monné Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkfront.c | 94 ++++++++++++++++++++++++++++++++++-- 1 file changed, 90 insertions(+), 4 deletions(-) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 8986adab9bf5..a2a395f85a41 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -46,6 +46,7 @@ #include #include #include +#include #include #include @@ -121,6 +122,8 @@ static inline struct blkif_req *blkif_req(struct request *rq) static DEFINE_MUTEX(blkfront_mutex); static const struct block_device_operations xlvbd_block_fops; +static struct delayed_work blkfront_work; +static LIST_HEAD(info_list); /* * Maximum number of segments in indirect requests, the actual value used by @@ -216,6 +219,7 @@ struct blkfront_info /* Save uncomplete reqs and bios for migration. */ struct list_head requests; struct bio_list bio_list; + struct list_head info_list; }; static unsigned int nr_minors; @@ -1759,6 +1763,12 @@ abort_transaction: return err; } +static void free_info(struct blkfront_info *info) +{ + list_del(&info->info_list); + kfree(info); +} + /* Common code used when first setting up, and when resuming. */ static int talk_to_blkback(struct xenbus_device *dev, struct blkfront_info *info) @@ -1880,7 +1890,10 @@ again: destroy_blkring: blkif_free(info, 0); - kfree(info); + mutex_lock(&blkfront_mutex); + free_info(info); + mutex_unlock(&blkfront_mutex); + dev_set_drvdata(&dev->dev, NULL); return err; @@ -1991,6 +2004,10 @@ static int blkfront_probe(struct xenbus_device *dev, info->handle = simple_strtoul(strrchr(dev->nodename, '/')+1, NULL, 0); dev_set_drvdata(&dev->dev, info); + mutex_lock(&blkfront_mutex); + list_add(&info->info_list, &info_list); + mutex_unlock(&blkfront_mutex); + return 0; } @@ -2301,6 +2318,12 @@ static void blkfront_gather_backend_features(struct blkfront_info *info) if (indirect_segments <= BLKIF_MAX_SEGMENTS_PER_REQUEST) indirect_segments = 0; info->max_indirect_segments = indirect_segments; + + if (info->feature_persistent) { + mutex_lock(&blkfront_mutex); + schedule_delayed_work(&blkfront_work, HZ * 10); + mutex_unlock(&blkfront_mutex); + } } /* @@ -2482,7 +2505,9 @@ static int blkfront_remove(struct xenbus_device *xbdev) mutex_unlock(&info->mutex); if (!bdev) { - kfree(info); + mutex_lock(&blkfront_mutex); + free_info(info); + mutex_unlock(&blkfront_mutex); return 0; } @@ -2502,7 +2527,9 @@ static int blkfront_remove(struct xenbus_device *xbdev) if (info && !bdev->bd_openers) { xlvbd_release_gendisk(info); disk->private_data = NULL; - kfree(info); + mutex_lock(&blkfront_mutex); + free_info(info); + mutex_unlock(&blkfront_mutex); } mutex_unlock(&bdev->bd_mutex); @@ -2585,7 +2612,7 @@ static void blkif_release(struct gendisk *disk, fmode_t mode) dev_info(disk_to_dev(bdev->bd_disk), "releasing disk\n"); xlvbd_release_gendisk(info); disk->private_data = NULL; - kfree(info); + free_info(info); } out: @@ -2618,6 +2645,61 @@ static struct xenbus_driver blkfront_driver = { .is_ready = blkfront_is_ready, }; +static void purge_persistent_grants(struct blkfront_info *info) +{ + unsigned int i; + unsigned long flags; + + for (i = 0; i < info->nr_rings; i++) { + struct blkfront_ring_info *rinfo = &info->rinfo[i]; + struct grant *gnt_list_entry, *tmp; + + spin_lock_irqsave(&rinfo->ring_lock, flags); + + if (rinfo->persistent_gnts_c == 0) { + spin_unlock_irqrestore(&rinfo->ring_lock, flags); + continue; + } + + list_for_each_entry_safe(gnt_list_entry, tmp, &rinfo->grants, + node) { + if (gnt_list_entry->gref == GRANT_INVALID_REF || + gnttab_query_foreign_access(gnt_list_entry->gref)) + continue; + + list_del(&gnt_list_entry->node); + gnttab_end_foreign_access(gnt_list_entry->gref, 0, 0UL); + rinfo->persistent_gnts_c--; + __free_page(gnt_list_entry->page); + kfree(gnt_list_entry); + } + + spin_unlock_irqrestore(&rinfo->ring_lock, flags); + } +} + +static void blkfront_delay_work(struct work_struct *work) +{ + struct blkfront_info *info; + bool need_schedule_work = false; + + mutex_lock(&blkfront_mutex); + + list_for_each_entry(info, &info_list, info_list) { + if (info->feature_persistent) { + need_schedule_work = true; + mutex_lock(&info->mutex); + purge_persistent_grants(info); + mutex_unlock(&info->mutex); + } + } + + if (need_schedule_work) + schedule_delayed_work(&blkfront_work, HZ * 10); + + mutex_unlock(&blkfront_mutex); +} + static int __init xlblk_init(void) { int ret; @@ -2650,6 +2732,8 @@ static int __init xlblk_init(void) return -ENODEV; } + INIT_DELAYED_WORK(&blkfront_work, blkfront_delay_work); + ret = xenbus_register_frontend(&blkfront_driver); if (ret) { unregister_blkdev(XENVBD_MAJOR, DEV_NAME); @@ -2663,6 +2747,8 @@ module_init(xlblk_init); static void __exit xlblk_exit(void) { + cancel_delayed_work_sync(&blkfront_work); + xenbus_unregister_driver(&blkfront_driver); unregister_blkdev(XENVBD_MAJOR, DEV_NAME); kfree(minors); From 4bcddbae019df2614ea36976ba3d36313f93c6d3 Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Mon, 13 Aug 2018 16:01:12 +0200 Subject: [PATCH 0186/1762] xen/blkfront: reorder tests in xlblk_init() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In case we don't want pv block devices we should not test parameters for sanity and eventually print out error messages. So test precluding conditions before checking parameters. Signed-off-by: Juergen Gross Reviewed-by: Roger Pau Monné Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkfront.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index a2a395f85a41..a71d817e900d 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -2708,6 +2708,15 @@ static int __init xlblk_init(void) if (!xen_domain()) return -ENODEV; + if (!xen_has_pv_disk_devices()) + return -ENODEV; + + if (register_blkdev(XENVBD_MAJOR, DEV_NAME)) { + pr_warn("xen_blk: can't get major %d with name %s\n", + XENVBD_MAJOR, DEV_NAME); + return -ENODEV; + } + if (xen_blkif_max_segments < BLKIF_MAX_SEGMENTS_PER_REQUEST) xen_blkif_max_segments = BLKIF_MAX_SEGMENTS_PER_REQUEST; @@ -2723,15 +2732,6 @@ static int __init xlblk_init(void) xen_blkif_max_queues = nr_cpus; } - if (!xen_has_pv_disk_devices()) - return -ENODEV; - - if (register_blkdev(XENVBD_MAJOR, DEV_NAME)) { - printk(KERN_WARNING "xen_blk: can't get major %d with name %s\n", - XENVBD_MAJOR, DEV_NAME); - return -ENODEV; - } - INIT_DELAYED_WORK(&blkfront_work, blkfront_delay_work); ret = xenbus_register_frontend(&blkfront_driver); From d77ff24e7fa2258877fa0b87efa06b9a58a37aab Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Mon, 13 Aug 2018 16:01:13 +0200 Subject: [PATCH 0187/1762] xen/blkback: move persistent grants flags to bool MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The struct persistent_gnt flags member is meant to be a bitfield of different flags. There is only PERSISTENT_GNT_ACTIVE flag left, so convert it to a bool named "active". Signed-off-by: Juergen Gross Reviewed-by: Roger Pau Monné Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkback/blkback.c | 13 ++++++------- drivers/block/xen-blkback/common.h | 7 +------ 2 files changed, 7 insertions(+), 13 deletions(-) diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 9eae7b243f68..fd1e19f1a49f 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -255,8 +255,7 @@ static int add_persistent_gnt(struct xen_blkif_ring *ring, } } - bitmap_zero(persistent_gnt->flags, PERSISTENT_GNT_FLAGS_SIZE); - set_bit(PERSISTENT_GNT_ACTIVE, persistent_gnt->flags); + persistent_gnt->active = true; /* Add new node and rebalance tree. */ rb_link_node(&(persistent_gnt->node), parent, new); rb_insert_color(&(persistent_gnt->node), &ring->persistent_gnts); @@ -280,11 +279,11 @@ static struct persistent_gnt *get_persistent_gnt(struct xen_blkif_ring *ring, else if (gref > data->gnt) node = node->rb_right; else { - if(test_bit(PERSISTENT_GNT_ACTIVE, data->flags)) { + if (data->active) { pr_alert_ratelimited("requesting a grant already in use\n"); return NULL; } - set_bit(PERSISTENT_GNT_ACTIVE, data->flags); + data->active = true; atomic_inc(&ring->persistent_gnt_in_use); return data; } @@ -295,10 +294,10 @@ static struct persistent_gnt *get_persistent_gnt(struct xen_blkif_ring *ring, static void put_persistent_gnt(struct xen_blkif_ring *ring, struct persistent_gnt *persistent_gnt) { - if(!test_bit(PERSISTENT_GNT_ACTIVE, persistent_gnt->flags)) + if (!persistent_gnt->active) pr_alert_ratelimited("freeing a grant already unused\n"); persistent_gnt->last_used = jiffies; - clear_bit(PERSISTENT_GNT_ACTIVE, persistent_gnt->flags); + persistent_gnt->active = false; atomic_dec(&ring->persistent_gnt_in_use); } @@ -429,7 +428,7 @@ purge_list: BUG_ON(persistent_gnt->handle == BLKBACK_INVALID_HANDLE); - if (test_bit(PERSISTENT_GNT_ACTIVE, persistent_gnt->flags)) + if (persistent_gnt->active) continue; if (!scan_used && !persistent_gnt_timeout(persistent_gnt)) continue; diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index 7bff72db3b7e..2339b8d39c5e 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -233,11 +233,6 @@ struct xen_vbd { struct backend_info; -/* Number of available flags */ -#define PERSISTENT_GNT_FLAGS_SIZE 1 -/* This persistent grant is currently in use */ -#define PERSISTENT_GNT_ACTIVE 0 - /* Number of requests that we can fit in a ring */ #define XEN_BLKIF_REQS_PER_PAGE 32 @@ -246,7 +241,7 @@ struct persistent_gnt { grant_ref_t gnt; grant_handle_t handle; unsigned long last_used; - DECLARE_BITMAP(flags, PERSISTENT_GNT_FLAGS_SIZE); + bool active; struct rb_node node; struct list_head remove_node; }; From 6f2f39ad1a54978394851c05e327419ebeb7227e Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Mon, 13 Aug 2018 16:01:14 +0200 Subject: [PATCH 0188/1762] xen/blkback: remove unused pers_gnts_lock from struct xen_blkif_ring MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit pers_gnts_lock isn't being used anywhere. Remove it. Signed-off-by: Juergen Gross Reviewed-by: Roger Pau Monné Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkback/common.h | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index 2339b8d39c5e..1d3002d773f7 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -269,7 +269,6 @@ struct xen_blkif_ring { wait_queue_head_t pending_free_wq; /* Tree to store persistent grants. */ - spinlock_t pers_gnts_lock; struct rb_root persistent_gnts; unsigned int persistent_gnt_c; atomic_t persistent_gnt_in_use; From 3fba68fa35a2cbda157c6f49f26eefccb2e10043 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 21 Aug 2018 13:44:07 +0200 Subject: [PATCH 0189/1762] scsi: core: Update SCSI_MQ_DEFAULT help text to match default The default was changed, but the help text was not updated. Fix grammar (s/the option/this option/) while at it. [mkp: drop "new" as suggested by John Garry] Fixes: d5038a13eca72fb2 ("scsi: core: switch to scsi-mq by default") Signed-off-by: Geert Uytterhoeven Reviewed-by: Ming Lei Signed-off-by: Martin K. Petersen --- drivers/scsi/Kconfig | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 8fc851a9e116..7c097006c54d 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -52,12 +52,12 @@ config SCSI_MQ_DEFAULT default y depends on SCSI ---help--- - This option enables the new blk-mq based I/O path for SCSI - devices by default. With the option the scsi_mod.use_blk_mq - module/boot option defaults to Y, without it to N, but it can - still be overridden either way. + This option enables the blk-mq based I/O path for SCSI devices by + default. With this option the scsi_mod.use_blk_mq module/boot + option defaults to Y, without it to N, but it can still be + overridden either way. - If unsure say N. + If unsure say Y. config SCSI_PROC_FS bool "legacy /proc/scsi/ support" From a7ccd92c8d2ac4eb168b621e086be2dc9b8344f6 Mon Sep 17 00:00:00 2001 From: John Pittman Date: Thu, 23 Aug 2018 15:49:18 -0400 Subject: [PATCH 0190/1762] scsi: documentation: add scsi_mod.use_blk_mq to scsi-parameters Kernel line argument scsi_mod.use_blk_mq is missing from file Documentation/scsi/scsi-parameters.txt. Add this option, providing mention of config setting and format. [mkp: clarified where to look] Signed-off-by: John Pittman Signed-off-by: Martin K. Petersen --- Documentation/scsi/scsi-parameters.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/scsi/scsi-parameters.txt b/Documentation/scsi/scsi-parameters.txt index 25a4b4cf04a6..92999d4e0cb8 100644 --- a/Documentation/scsi/scsi-parameters.txt +++ b/Documentation/scsi/scsi-parameters.txt @@ -97,6 +97,11 @@ parameters may be changed at runtime by the command allowing boot to proceed. none ignores them, expecting user space to do the scan. + scsi_mod.use_blk_mq= + [SCSI] use blk-mq I/O path by default + See SCSI_MQ_DEFAULT in drivers/scsi/Kconfig. + Format: + sim710= [SCSI,HW] See header of drivers/scsi/sim710.c. From 89809b028b6f54187b7d81a0c69b35d394c52e62 Mon Sep 17 00:00:00 2001 From: Varun Prakash Date: Sat, 11 Aug 2018 21:03:58 +0530 Subject: [PATCH 0191/1762] scsi: csiostor: add a check for NULL pointer after kmalloc() Reported-by: Colin Ian King Signed-off-by: Varun Prakash Signed-off-by: Martin K. Petersen --- drivers/scsi/csiostor/csio_hw.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c index 23d07e9f87d0..6ff7c5580fcb 100644 --- a/drivers/scsi/csiostor/csio_hw.c +++ b/drivers/scsi/csiostor/csio_hw.c @@ -2364,8 +2364,8 @@ bye: } /* - * Returns -EINVAL if attempts to flash the firmware failed - * else returns 0, + * Returns -EINVAL if attempts to flash the firmware failed, + * -ENOMEM if memory allocation failed else returns 0, * if flashing was not attempted because the card had the * latest firmware ECANCELED is returned */ @@ -2393,6 +2393,13 @@ csio_hw_flash_fw(struct csio_hw *hw, int *reset) return -EINVAL; } + /* allocate memory to read the header of the firmware on the + * card + */ + card_fw = kmalloc(sizeof(*card_fw), GFP_KERNEL); + if (!card_fw) + return -ENOMEM; + if (csio_is_t5(pci_dev->device & CSIO_HW_CHIP_MASK)) fw_bin_file = FW_FNAME_T5; else @@ -2406,11 +2413,6 @@ csio_hw_flash_fw(struct csio_hw *hw, int *reset) fw_size = fw->size; } - /* allocate memory to read the header of the firmware on the - * card - */ - card_fw = kmalloc(sizeof(*card_fw), GFP_KERNEL); - /* upgrade FW logic */ ret = csio_hw_prep_fw(hw, fw_info, fw_data, fw_size, card_fw, hw->fw_state, reset); From 68bdc630721c40e908d22cffe07b5ca225a69f6e Mon Sep 17 00:00:00 2001 From: Varun Prakash Date: Sat, 11 Aug 2018 21:14:08 +0530 Subject: [PATCH 0192/1762] scsi: csiostor: fix incorrect port capabilities - use be32_to_cpu() instead of ntohs() for 32 bit port capabilities. - add a new function fwcaps32_to_caps16() to convert 32 bit port capabilities to 16 bit port capabilities. Signed-off-by: Varun Prakash Signed-off-by: Martin K. Petersen --- drivers/scsi/csiostor/csio_hw.c | 55 ++++++++++++++++++++++++++------- drivers/scsi/csiostor/csio_hw.h | 1 + drivers/scsi/csiostor/csio_mb.c | 6 ++-- 3 files changed, 48 insertions(+), 14 deletions(-) diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c index 6ff7c5580fcb..e51923886475 100644 --- a/drivers/scsi/csiostor/csio_hw.c +++ b/drivers/scsi/csiostor/csio_hw.c @@ -1601,6 +1601,46 @@ fw_port_cap32_t fwcaps16_to_caps32(fw_port_cap16_t caps16) return caps32; } +/** + * fwcaps32_to_caps16 - convert 32-bit Port Capabilities to 16-bits + * @caps32: a 32-bit Port Capabilities value + * + * Returns the equivalent 16-bit Port Capabilities value. Note that + * not all 32-bit Port Capabilities can be represented in the 16-bit + * Port Capabilities and some fields/values may not make it. + */ +fw_port_cap16_t fwcaps32_to_caps16(fw_port_cap32_t caps32) +{ + fw_port_cap16_t caps16 = 0; + + #define CAP32_TO_CAP16(__cap) \ + do { \ + if (caps32 & FW_PORT_CAP32_##__cap) \ + caps16 |= FW_PORT_CAP_##__cap; \ + } while (0) + + CAP32_TO_CAP16(SPEED_100M); + CAP32_TO_CAP16(SPEED_1G); + CAP32_TO_CAP16(SPEED_10G); + CAP32_TO_CAP16(SPEED_25G); + CAP32_TO_CAP16(SPEED_40G); + CAP32_TO_CAP16(SPEED_100G); + CAP32_TO_CAP16(FC_RX); + CAP32_TO_CAP16(FC_TX); + CAP32_TO_CAP16(802_3_PAUSE); + CAP32_TO_CAP16(802_3_ASM_DIR); + CAP32_TO_CAP16(ANEG); + CAP32_TO_CAP16(FORCE_PAUSE); + CAP32_TO_CAP16(MDIAUTO); + CAP32_TO_CAP16(MDISTRAIGHT); + CAP32_TO_CAP16(FEC_RS); + CAP32_TO_CAP16(FEC_BASER_RS); + + #undef CAP32_TO_CAP16 + + return caps16; +} + /** * lstatus_to_fwcap - translate old lstatus to 32-bit Port Capabilities * @lstatus: old FW_PORT_ACTION_GET_PORT_INFO lstatus value @@ -1759,7 +1799,7 @@ csio_enable_ports(struct csio_hw *hw) val = 1; csio_mb_params(hw, mbp, CSIO_MB_DEFAULT_TMO, - hw->pfn, 0, 1, ¶m, &val, false, + hw->pfn, 0, 1, ¶m, &val, true, NULL); if (csio_mb_issue(hw, mbp)) { @@ -1769,16 +1809,9 @@ csio_enable_ports(struct csio_hw *hw) return -EINVAL; } - csio_mb_process_read_params_rsp(hw, mbp, &retval, 1, - &val); - if (retval != FW_SUCCESS) { - csio_err(hw, "FW_PARAMS_CMD(r) port:%d failed: 0x%x\n", - portid, retval); - mempool_free(mbp, hw->mb_mempool); - return -EINVAL; - } - - fw_caps = val; + csio_mb_process_read_params_rsp(hw, mbp, &retval, + 0, NULL); + fw_caps = retval ? FW_CAPS16 : FW_CAPS32; } /* Read PORT information */ diff --git a/drivers/scsi/csiostor/csio_hw.h b/drivers/scsi/csiostor/csio_hw.h index 9e73ef771eb7..e351af6e7c81 100644 --- a/drivers/scsi/csiostor/csio_hw.h +++ b/drivers/scsi/csiostor/csio_hw.h @@ -639,6 +639,7 @@ int csio_handle_intr_status(struct csio_hw *, unsigned int, fw_port_cap32_t fwcap_to_fwspeed(fw_port_cap32_t acaps); fw_port_cap32_t fwcaps16_to_caps32(fw_port_cap16_t caps16); +fw_port_cap16_t fwcaps32_to_caps16(fw_port_cap32_t caps32); fw_port_cap32_t lstatus_to_fwcap(u32 lstatus); int csio_hw_start(struct csio_hw *); diff --git a/drivers/scsi/csiostor/csio_mb.c b/drivers/scsi/csiostor/csio_mb.c index c026417269c3..6f13673d6aa0 100644 --- a/drivers/scsi/csiostor/csio_mb.c +++ b/drivers/scsi/csiostor/csio_mb.c @@ -368,7 +368,7 @@ csio_mb_port(struct csio_hw *hw, struct csio_mb *mbp, uint32_t tmo, FW_CMD_LEN16_V(sizeof(*cmdp) / 16)); if (fw_caps == FW_CAPS16) - cmdp->u.l1cfg.rcap = cpu_to_be32(fc); + cmdp->u.l1cfg.rcap = cpu_to_be32(fwcaps32_to_caps16(fc)); else cmdp->u.l1cfg32.rcap32 = cpu_to_be32(fc); } @@ -395,8 +395,8 @@ csio_mb_process_read_port_rsp(struct csio_hw *hw, struct csio_mb *mbp, *pcaps = fwcaps16_to_caps32(ntohs(rsp->u.info.pcap)); *acaps = fwcaps16_to_caps32(ntohs(rsp->u.info.acap)); } else { - *pcaps = ntohs(rsp->u.info32.pcaps32); - *acaps = ntohs(rsp->u.info32.acaps32); + *pcaps = be32_to_cpu(rsp->u.info32.pcaps32); + *acaps = be32_to_cpu(rsp->u.info32.acaps32); } } } From 9abd9990e9779dc9c548c3599aaca7e3505ab19d Mon Sep 17 00:00:00 2001 From: James Smart Date: Tue, 14 Aug 2018 12:55:05 -0700 Subject: [PATCH 0193/1762] scsi: lpfc: Default fdmi_on to on Change default behavior for fdmi registration to on. [mkp: patch was mangled] Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_attr.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 5a25553415f8..057a60abe664 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -5122,16 +5122,16 @@ LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); /* # lpfc_fdmi_on: Controls FDMI support. -# 0 No FDMI support (default) -# 1 Traditional FDMI support +# 0 No FDMI support +# 1 Traditional FDMI support (default) # Traditional FDMI support means the driver will assume FDMI-2 support; # however, if that fails, it will fallback to FDMI-1. # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of # lpfc_fdmi_on. -# Value range [0,1]. Default value is 0. +# Value range [0,1]. Default value is 1. */ -LPFC_ATTR_R(fdmi_on, 0, 0, 1, "Enable FDMI support"); +LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); /* # Specifies the maximum number of ELS cmds we can have outstanding (for From 53e13ee087a80e8d4fc95436318436e5c2c1f8c2 Mon Sep 17 00:00:00 2001 From: James Smart Date: Thu, 16 Aug 2018 16:04:05 -0700 Subject: [PATCH 0194/1762] scsi: lpfc: Correct MDS diag and nvmet configuration A recent change added some MDS processing in the lpfc_drain_txq routine that relies on the fcp_wq being allocated. For nvmet operation the fcp_wq is not allocated because it can only be an nvme-target. When the original MDS support was added LS_MDS_LOOPBACK was defined wrong, (0x16) it should have been 0x10 (decimal value used for hex setting). This incorrect value allowed MDS_LOOPBACK to be set simultaneously with LS_NPIV_FAB_SUPPORTED, causing the driver to crash when it accesses the non-existent fcp_wq. Correct the bad value setting for LS_MDS_LOOPBACK. Fixes: ae9e28f36a6c ("lpfc: Add MDS Diagnostic support.") Cc: # v4.12+ Signed-off-by: Dick Kennedy Signed-off-by: James Smart Tested-by: Ewan D. Milne Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index e0d0da5f43d6..43732e8d1347 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -672,7 +672,7 @@ struct lpfc_hba { #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */ #define LS_MDS_LINK_DOWN 0x8 /* MDS Diagnostics Link Down */ -#define LS_MDS_LOOPBACK 0x16 /* MDS Diagnostics Link Up (Loopback) */ +#define LS_MDS_LOOPBACK 0x10 /* MDS Diagnostics Link Up (Loopback) */ uint32_t hba_flag; /* hba generic flags */ #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */ From eb53a3ea3e009578a388f106620b22b1707cf2f6 Mon Sep 17 00:00:00 2001 From: Martin Wilck Date: Wed, 22 Aug 2018 13:25:44 +0200 Subject: [PATCH 0195/1762] scsi: hpsa: limit transfer length to 1MB, not 512kB e2c7b43 was supposed to limit transfer length to 1MB, but got the unit of max_sectors wrong. Fixes: e2c7b433f729 ("scsi: hpsa: limit transfer length to 1MB") Signed-off-by: Martin Wilck Signed-off-by: Martin K. Petersen --- drivers/scsi/hpsa.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 58bb70b886d7..c120929d4ffe 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -976,7 +976,7 @@ static struct scsi_host_template hpsa_driver_template = { #endif .sdev_attrs = hpsa_sdev_attrs, .shost_attrs = hpsa_shost_attrs, - .max_sectors = 1024, + .max_sectors = 2048, .no_write_same = 1, }; From cedefa8544c6be216b4710575065e3a11065f8d0 Mon Sep 17 00:00:00 2001 From: Varun Prakash Date: Sat, 11 Aug 2018 21:10:29 +0530 Subject: [PATCH 0196/1762] scsi: target: iscsi: cxgbit: use pr_debug() instead of pr_info() DDP programming happens in data path and it can fail because of lack of resources so use pr_debug() instead of pr_info() for this case. Signed-off-by: Varun Prakash Reviewed-by: Mike Christie Signed-off-by: Martin K. Petersen --- drivers/target/iscsi/cxgbit/cxgbit_ddp.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/target/iscsi/cxgbit/cxgbit_ddp.c b/drivers/target/iscsi/cxgbit/cxgbit_ddp.c index 768cce0ccb80..76a262674c8d 100644 --- a/drivers/target/iscsi/cxgbit/cxgbit_ddp.c +++ b/drivers/target/iscsi/cxgbit/cxgbit_ddp.c @@ -207,8 +207,8 @@ cxgbit_ddp_reserve(struct cxgbit_sock *csk, struct cxgbi_task_tag_info *ttinfo, ret = dma_map_sg(&ppm->pdev->dev, sgl, sgcnt, DMA_FROM_DEVICE); sgl->offset = sg_offset; if (!ret) { - pr_info("%s: 0x%x, xfer %u, sgl %u dma mapping err.\n", - __func__, 0, xferlen, sgcnt); + pr_debug("%s: 0x%x, xfer %u, sgl %u dma mapping err.\n", + __func__, 0, xferlen, sgcnt); goto rel_ppods; } @@ -250,8 +250,8 @@ cxgbit_get_r2t_ttt(struct iscsi_conn *conn, struct iscsi_cmd *cmd, ret = cxgbit_ddp_reserve(csk, ttinfo, cmd->se_cmd.data_length); if (ret < 0) { - pr_info("csk 0x%p, cmd 0x%p, xfer len %u, sgcnt %u no ddp.\n", - csk, cmd, cmd->se_cmd.data_length, ttinfo->nents); + pr_debug("csk 0x%p, cmd 0x%p, xfer len %u, sgcnt %u no ddp.\n", + csk, cmd, cmd->se_cmd.data_length, ttinfo->nents); ttinfo->sgl = NULL; ttinfo->nents = 0; From 4e8065aa6c6f50765290be27ab8a64a4e44cb009 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 23 Aug 2018 23:23:06 +0200 Subject: [PATCH 0197/1762] scsi: libata: Add missing newline at end of file With gcc 4.1.2: drivers/ata/libata-core.c:7396:33: warning: no newline at end of file Fixes: 2fa4a32613c9182b ("scsi: libsas: dynamically allocate and free ata host") Signed-off-by: Geert Uytterhoeven Signed-off-by: Martin K. Petersen --- drivers/ata/libata-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 172e32840256..599e01bcdef2 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -7394,4 +7394,4 @@ EXPORT_SYMBOL_GPL(ata_cable_unknown); EXPORT_SYMBOL_GPL(ata_cable_ignore); EXPORT_SYMBOL_GPL(ata_cable_sata); EXPORT_SYMBOL_GPL(ata_host_get); -EXPORT_SYMBOL_GPL(ata_host_put); \ No newline at end of file +EXPORT_SYMBOL_GPL(ata_host_put); From 23aa8e69f2c6ceb0bdca52f4450ad1f45675ca73 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Mon, 27 Aug 2018 15:24:42 +0800 Subject: [PATCH 0198/1762] Revert "scsi: core: fix scsi_host_queue_ready" This reverts commit 265d59aacbce7e50bdc1f5d25033c38dd70b3767. There is fundamental issue in commit 328728630d9f2bf1 (scsi: core: avoid host-wide host_busy counter for scsi_mq) because SCSI's host busy counter may not be same with counter of blk-mq's inflight tags, especially in case of none io scheduler. So revert this commit first. Cc: Omar Sandoval , Cc: "Martin K. Petersen" , Cc: James Bottomley , Cc: Christoph Hellwig , Cc: Don Brace Cc: Kashyap Desai Cc: Mike Snitzer Cc: Hannes Reinecke Cc: Laurence Oberman Cc: Bart Van Assche Cc: Guenter Roeck Cc: Jens Axboe Reported-by: Jens Axboe Signed-off-by: Ming Lei Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_lib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 0adfb3bce0fd..1046679f5473 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1611,7 +1611,7 @@ static inline int scsi_host_queue_ready(struct request_queue *q, else busy = 0; if (atomic_read(&shost->host_blocked) > 0) { - if (busy) + if (busy || scsi_host_busy(shost)) goto starved; /* From f45b8934b90b1d0017d33f8529941ec5020e9e0e Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 13 Aug 2018 23:20:33 +0200 Subject: [PATCH 0199/1762] staging: wilc1000: revert "fix TODO to compile spi and sdio components in single module" The TODO item named "make spi and sdio components coexist in one build" was apparently addressed a long time ago, but never removed from the TODO file. However, the new patch that tries to address it actually makes it worse again by duplicating the common parts of the driver into two separate modules rather than sharing them. This also introduces a build regression when one of the two is built-in while the other is a loadable module: drivers/staging/wilc1000/wilc_debugfs.o:(.data+0x10): undefined reference to `__this_module' Reverting the patch makes it build again. I'm leaving the TODO file modification though, as there is nothing left to do for this item. A related problem however still seems to exist: one still cannot have multiple concurrent instances of wilc1000 devices present in the system, as there are lots of shared global variables such as host_interface.c:static struct wilc_vif *periodic_rssi_vif; wilc_sdio.c:static struct wilc_sdio g_sdio; wilc_wlan.c:static enum chip_ps_states chip_ps_state = CHIP_WAKEDUP; wilc_wlan.c:static u32 pending_acks; wilc_wfi_cfgoperations.c:int wilc_connecting; In order to have multiple instances working (sdio, spi, or mixed), all such variables need to be dynamically allocated per instance and stored in 'struct wilc' or one of the structures referenced by it. Fixes: 9abc44ba4e2f ("staging: wilc1000: fix TODO to compile spi and sdio components in single module") Signed-off-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman --- drivers/staging/wilc1000/Makefile | 3 +-- drivers/staging/wilc1000/linux_wlan.c | 6 ++++-- drivers/staging/wilc1000/wilc_debugfs.c | 7 +++++-- drivers/staging/wilc1000/wilc_wlan.c | 6 ++++++ drivers/staging/wilc1000/wilc_wlan_if.h | 2 -- 5 files changed, 16 insertions(+), 8 deletions(-) diff --git a/drivers/staging/wilc1000/Makefile b/drivers/staging/wilc1000/Makefile index f7b07c0b5ce2..ee7e26b886a5 100644 --- a/drivers/staging/wilc1000/Makefile +++ b/drivers/staging/wilc1000/Makefile @@ -1,4 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_WILC1000) += wilc1000.o ccflags-y += -DFIRMWARE_1002=\"atmel/wilc1002_firmware.bin\" \ -DFIRMWARE_1003=\"atmel/wilc1003_firmware.bin\" @@ -11,9 +12,7 @@ wilc1000-objs := wilc_wfi_cfgoperations.o linux_wlan.o linux_mon.o \ wilc_wlan.o obj-$(CONFIG_WILC1000_SDIO) += wilc1000-sdio.o -wilc1000-sdio-objs += $(wilc1000-objs) wilc1000-sdio-objs += wilc_sdio.o obj-$(CONFIG_WILC1000_SPI) += wilc1000-spi.o -wilc1000-spi-objs += $(wilc1000-objs) wilc1000-spi-objs += wilc_spi.o diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index 01cf4bd2e192..3b8d237decbf 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -1038,8 +1038,8 @@ void wilc_netdev_cleanup(struct wilc *wilc) } kfree(wilc); - wilc_debugfs_remove(); } +EXPORT_SYMBOL_GPL(wilc_netdev_cleanup); static const struct net_device_ops wilc_netdev_ops = { .ndo_init = mac_init_fn, @@ -1062,7 +1062,6 @@ int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type, if (!wl) return -ENOMEM; - wilc_debugfs_init(); *wilc = wl; wl->io_type = io_type; wl->hif_func = ops; @@ -1124,3 +1123,6 @@ int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type, return 0; } +EXPORT_SYMBOL_GPL(wilc_netdev_init); + +MODULE_LICENSE("GPL"); diff --git a/drivers/staging/wilc1000/wilc_debugfs.c b/drivers/staging/wilc1000/wilc_debugfs.c index edc72876458d..8001df66b8c2 100644 --- a/drivers/staging/wilc1000/wilc_debugfs.c +++ b/drivers/staging/wilc1000/wilc_debugfs.c @@ -19,6 +19,7 @@ static struct dentry *wilc_dir; #define DBG_LEVEL_ALL (DEBUG | INFO | WRN | ERR) static atomic_t WILC_DEBUG_LEVEL = ATOMIC_INIT(ERR); +EXPORT_SYMBOL_GPL(WILC_DEBUG_LEVEL); static ssize_t wilc_debug_level_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) @@ -87,7 +88,7 @@ static struct wilc_debugfs_info_t debugfs_info[] = { }, }; -int wilc_debugfs_init(void) +static int __init wilc_debugfs_init(void) { int i; struct wilc_debugfs_info_t *info; @@ -103,10 +104,12 @@ int wilc_debugfs_init(void) } return 0; } +module_init(wilc_debugfs_init); -void wilc_debugfs_remove(void) +static void __exit wilc_debugfs_remove(void) { debugfs_remove_recursive(wilc_dir); } +module_exit(wilc_debugfs_remove); #endif diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c index 6787b6e9f124..8b184aa30d25 100644 --- a/drivers/staging/wilc1000/wilc_wlan.c +++ b/drivers/staging/wilc1000/wilc_wlan.c @@ -417,6 +417,7 @@ void chip_allow_sleep(struct wilc *wilc) wilc->hif_func->hif_write_reg(wilc, 0xf0, reg & ~BIT(0)); wilc->hif_func->hif_write_reg(wilc, 0xfa, 0); } +EXPORT_SYMBOL_GPL(chip_allow_sleep); void chip_wakeup(struct wilc *wilc) { @@ -471,6 +472,7 @@ void chip_wakeup(struct wilc *wilc) } chip_ps_state = CHIP_WAKEDUP; } +EXPORT_SYMBOL_GPL(chip_wakeup); void wilc_chip_sleep_manually(struct wilc *wilc) { @@ -484,6 +486,7 @@ void wilc_chip_sleep_manually(struct wilc *wilc) chip_ps_state = CHIP_SLEEPING_MANUAL; release_bus(wilc, RELEASE_ONLY); } +EXPORT_SYMBOL_GPL(wilc_chip_sleep_manually); void host_wakeup_notify(struct wilc *wilc) { @@ -491,6 +494,7 @@ void host_wakeup_notify(struct wilc *wilc) wilc->hif_func->hif_write_reg(wilc, 0x10b0, 1); release_bus(wilc, RELEASE_ONLY); } +EXPORT_SYMBOL_GPL(host_wakeup_notify); void host_sleep_notify(struct wilc *wilc) { @@ -498,6 +502,7 @@ void host_sleep_notify(struct wilc *wilc) wilc->hif_func->hif_write_reg(wilc, 0x10ac, 1); release_bus(wilc, RELEASE_ONLY); } +EXPORT_SYMBOL_GPL(host_sleep_notify); int wilc_wlan_handle_txq(struct net_device *dev, u32 *txq_count) { @@ -871,6 +876,7 @@ void wilc_handle_isr(struct wilc *wilc) release_bus(wilc, RELEASE_ALLOW_SLEEP); } +EXPORT_SYMBOL_GPL(wilc_handle_isr); int wilc_wlan_firmware_download(struct wilc *wilc, const u8 *buffer, u32 buffer_size) diff --git a/drivers/staging/wilc1000/wilc_wlan_if.h b/drivers/staging/wilc1000/wilc_wlan_if.h index 00d13b153f80..b81a73b9bd67 100644 --- a/drivers/staging/wilc1000/wilc_wlan_if.h +++ b/drivers/staging/wilc1000/wilc_wlan_if.h @@ -831,6 +831,4 @@ struct wilc; int wilc_wlan_init(struct net_device *dev); u32 wilc_get_chipid(struct wilc *wilc, bool update); -int wilc_debugfs_init(void); -void wilc_debugfs_remove(void); #endif From d772a65d8a6c45c376a8200a38f7f82fb480af6a Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Mon, 27 Aug 2018 15:24:43 +0800 Subject: [PATCH 0200/1762] Revert "scsi: core: avoid host-wide host_busy counter for scsi_mq" This reverts commit 328728630d9f2bf14b82ca30b5e47489beefe361. There is fundamental issue in commit 328728630d9f2bf1 (scsi: core: avoid host-wide host_busy counter for scsi_mq) because SCSI's host busy counter may not be same with counter of blk-mq's inflight tags, especially in case of none io scheduler. We may switch to other approach for addressing this scsi_mq's performance issue, such as percpu counter or kind of ways, so revert this commit first for fixing this kind of issue in EH path, as reported by Jens. Cc: Omar Sandoval , Cc: "Martin K. Petersen" , Cc: James Bottomley , Cc: Christoph Hellwig , Cc: Don Brace Cc: Kashyap Desai Cc: Mike Snitzer Cc: Hannes Reinecke Cc: Laurence Oberman Cc: Bart Van Assche Cc: Jens Axboe Reported-by: Jens Axboe Signed-off-by: Ming Lei Signed-off-by: Martin K. Petersen --- drivers/scsi/hosts.c | 24 +----------------------- drivers/scsi/scsi_lib.c | 23 ++++++----------------- 2 files changed, 7 insertions(+), 40 deletions(-) diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index f02dcc875a09..ea4b0bb0c1cd 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -563,35 +563,13 @@ struct Scsi_Host *scsi_host_get(struct Scsi_Host *shost) } EXPORT_SYMBOL(scsi_host_get); -struct scsi_host_mq_in_flight { - int cnt; -}; - -static void scsi_host_check_in_flight(struct request *rq, void *data, - bool reserved) -{ - struct scsi_host_mq_in_flight *in_flight = data; - - if (blk_mq_request_started(rq)) - in_flight->cnt++; -} - /** * scsi_host_busy - Return the host busy counter * @shost: Pointer to Scsi_Host to inc. **/ int scsi_host_busy(struct Scsi_Host *shost) { - struct scsi_host_mq_in_flight in_flight = { - .cnt = 0, - }; - - if (!shost->use_blk_mq) - return atomic_read(&shost->host_busy); - - blk_mq_tagset_busy_iter(&shost->tag_set, scsi_host_check_in_flight, - &in_flight); - return in_flight.cnt; + return atomic_read(&shost->host_busy); } EXPORT_SYMBOL(scsi_host_busy); diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 1046679f5473..eb97d2dd3651 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -345,8 +345,7 @@ static void scsi_dec_host_busy(struct Scsi_Host *shost) unsigned long flags; rcu_read_lock(); - if (!shost->use_blk_mq) - atomic_dec(&shost->host_busy); + atomic_dec(&shost->host_busy); if (unlikely(scsi_host_in_recovery(shost))) { spin_lock_irqsave(shost->host_lock, flags); if (shost->host_failed || shost->host_eh_scheduled) @@ -445,12 +444,7 @@ static inline bool scsi_target_is_busy(struct scsi_target *starget) static inline bool scsi_host_is_busy(struct Scsi_Host *shost) { - /* - * blk-mq can handle host queue busy efficiently via host-wide driver - * tag allocation - */ - - if (!shost->use_blk_mq && shost->can_queue > 0 && + if (shost->can_queue > 0 && atomic_read(&shost->host_busy) >= shost->can_queue) return true; if (atomic_read(&shost->host_blocked) > 0) @@ -1606,12 +1600,9 @@ static inline int scsi_host_queue_ready(struct request_queue *q, if (scsi_host_in_recovery(shost)) return 0; - if (!shost->use_blk_mq) - busy = atomic_inc_return(&shost->host_busy) - 1; - else - busy = 0; + busy = atomic_inc_return(&shost->host_busy) - 1; if (atomic_read(&shost->host_blocked) > 0) { - if (busy || scsi_host_busy(shost)) + if (busy) goto starved; /* @@ -1625,7 +1616,7 @@ static inline int scsi_host_queue_ready(struct request_queue *q, "unblocking host at zero depth\n")); } - if (!shost->use_blk_mq && shost->can_queue > 0 && busy >= shost->can_queue) + if (shost->can_queue > 0 && busy >= shost->can_queue) goto starved; if (shost->host_self_blocked) goto starved; @@ -1711,9 +1702,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q) * with the locks as normal issue path does. */ atomic_inc(&sdev->device_busy); - - if (!shost->use_blk_mq) - atomic_inc(&shost->host_busy); + atomic_inc(&shost->host_busy); if (starget->can_queue > 0) atomic_inc(&starget->target_busy); From b9eb3b14f1dbf16bf27b6c1ffe6b8c00ec945c9b Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 27 Aug 2018 12:23:01 +0300 Subject: [PATCH 0201/1762] scsi: aacraid: fix a signedness bug The problem is that ->reset_state is a u8 but it can be set to -1 or -2 in aac_tmf_callback() and the error handling in aac_eh_target_reset() relies on it to be signed. [mkp: fixed typo] Fixes: 0d643ff3c353 ("scsi: aacraid: use aac_tmf_callback for reset fib") Signed-off-by: Dan Carpenter Signed-off-by: Martin K. Petersen --- drivers/scsi/aacraid/aacraid.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 29bf1e60f542..39eb415987fc 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -1346,7 +1346,7 @@ struct fib { struct aac_hba_map_info { __le32 rmw_nexus; /* nexus for native HBA devices */ u8 devtype; /* device type */ - u8 reset_state; /* 0 - no reset, 1..x - */ + s8 reset_state; /* 0 - no reset, 1..x - */ /* after xth TM LUN reset */ u16 qd_limit; u32 scan_counter; From 061a5427530633de93ace4ef001b99961984af62 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Sun, 26 Aug 2018 10:09:06 -0600 Subject: [PATCH 0202/1762] blk-wbt: abstract out end IO completion handler Prep patch for calling the handler from a different context, no functional changes in this patch. Tested-by: Agarwal, Anchal Signed-off-by: Jens Axboe --- block/blk-wbt.c | 21 ++++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-) diff --git a/block/blk-wbt.c b/block/blk-wbt.c index 84507d3e9a98..4575b4650370 100644 --- a/block/blk-wbt.c +++ b/block/blk-wbt.c @@ -123,16 +123,11 @@ static void rwb_wake_all(struct rq_wb *rwb) } } -static void __wbt_done(struct rq_qos *rqos, enum wbt_flags wb_acct) +static void wbt_rqw_done(struct rq_wb *rwb, struct rq_wait *rqw, + enum wbt_flags wb_acct) { - struct rq_wb *rwb = RQWB(rqos); - struct rq_wait *rqw; int inflight, limit; - if (!(wb_acct & WBT_TRACKED)) - return; - - rqw = get_rq_wait(rwb, wb_acct); inflight = atomic_dec_return(&rqw->inflight); /* @@ -170,6 +165,18 @@ static void __wbt_done(struct rq_qos *rqos, enum wbt_flags wb_acct) } } +static void __wbt_done(struct rq_qos *rqos, enum wbt_flags wb_acct) +{ + struct rq_wb *rwb = RQWB(rqos); + struct rq_wait *rqw; + + if (!(wb_acct & WBT_TRACKED)) + return; + + rqw = get_rq_wait(rwb, wb_acct); + wbt_rqw_done(rwb, rqw, wb_acct); +} + /* * Called on completion of a request. Note that it's also called when * a request is merged, when the request gets freed. From 38cfb5a45ee013bfab5d1ae4c4738815e744b440 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Sun, 26 Aug 2018 10:10:05 -0600 Subject: [PATCH 0203/1762] blk-wbt: improve waking of tasks We have two potential issues: 1) After commit 2887e41b910b, we only wake one process at the time when we finish an IO. We really want to wake up as many tasks as can queue IO. Before this commit, we woke up everyone, which could cause a thundering herd issue. 2) A task can potentially consume two wakeups, causing us to (in practice) miss a wakeup. Fix both by providing our own wakeup function, which stops __wake_up_common() from waking up more tasks if we fail to get a queueing token. With the strict ordering we have on the wait list, this wakes the right tasks and the right amount of tasks. Based on a patch from Jianchao Wang . Tested-by: Agarwal, Anchal Signed-off-by: Jens Axboe --- block/blk-wbt.c | 65 +++++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 57 insertions(+), 8 deletions(-) diff --git a/block/blk-wbt.c b/block/blk-wbt.c index 4575b4650370..bfb0d21d19ce 100644 --- a/block/blk-wbt.c +++ b/block/blk-wbt.c @@ -161,7 +161,7 @@ static void wbt_rqw_done(struct rq_wb *rwb, struct rq_wait *rqw, int diff = limit - inflight; if (!inflight || diff >= rwb->wb_background / 2) - wake_up(&rqw->wait); + wake_up_all(&rqw->wait); } } @@ -488,6 +488,34 @@ static inline unsigned int get_limit(struct rq_wb *rwb, unsigned long rw) return limit; } +struct wbt_wait_data { + struct wait_queue_entry wq; + struct task_struct *task; + struct rq_wb *rwb; + struct rq_wait *rqw; + unsigned long rw; + bool got_token; +}; + +static int wbt_wake_function(struct wait_queue_entry *curr, unsigned int mode, + int wake_flags, void *key) +{ + struct wbt_wait_data *data = container_of(curr, struct wbt_wait_data, + wq); + + /* + * If we fail to get a budget, return -1 to interrupt the wake up + * loop in __wake_up_common. + */ + if (!rq_wait_inc_below(data->rqw, get_limit(data->rwb, data->rw))) + return -1; + + data->got_token = true; + list_del_init(&curr->entry); + wake_up_process(data->task); + return 1; +} + /* * Block if we will exceed our limit, or if we are currently waiting for * the timer to kick off queuing again. @@ -498,31 +526,52 @@ static void __wbt_wait(struct rq_wb *rwb, enum wbt_flags wb_acct, __acquires(lock) { struct rq_wait *rqw = get_rq_wait(rwb, wb_acct); - DECLARE_WAITQUEUE(wait, current); + struct wbt_wait_data data = { + .wq = { + .func = wbt_wake_function, + .entry = LIST_HEAD_INIT(data.wq.entry), + }, + .task = current, + .rwb = rwb, + .rqw = rqw, + .rw = rw, + }; bool has_sleeper; has_sleeper = wq_has_sleeper(&rqw->wait); if (!has_sleeper && rq_wait_inc_below(rqw, get_limit(rwb, rw))) return; - add_wait_queue_exclusive(&rqw->wait, &wait); + prepare_to_wait_exclusive(&rqw->wait, &data.wq, TASK_UNINTERRUPTIBLE); do { - set_current_state(TASK_UNINTERRUPTIBLE); - - if (!has_sleeper && rq_wait_inc_below(rqw, get_limit(rwb, rw))) + if (data.got_token) break; + if (!has_sleeper && + rq_wait_inc_below(rqw, get_limit(rwb, rw))) { + finish_wait(&rqw->wait, &data.wq); + + /* + * We raced with wbt_wake_function() getting a token, + * which means we now have two. Put our local token + * and wake anyone else potentially waiting for one. + */ + if (data.got_token) + wbt_rqw_done(rwb, rqw, wb_acct); + break; + } + if (lock) { spin_unlock_irq(lock); io_schedule(); spin_lock_irq(lock); } else io_schedule(); + has_sleeper = false; } while (1); - __set_current_state(TASK_RUNNING); - remove_wait_queue(&rqw->wait, &wait); + finish_wait(&rqw->wait, &data.wq); } static inline bool wbt_should_throttle(struct rq_wb *rwb, struct bio *bio) From 849c70dacb169da751b171c7d230206a72cf7391 Mon Sep 17 00:00:00 2001 From: Todd Poynor Date: Thu, 9 Aug 2018 20:20:56 -0700 Subject: [PATCH 0204/1762] MAINTAINERS: Switch a maintainer for drivers/staging/gasket Todd Poynor takes over for John Joseph. Signed-off-by: John Joseph Signed-off-by: Todd Poynor Signed-off-by: Greg Kroah-Hartman --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index a5b256b25905..a726e22976bb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6059,7 +6059,7 @@ F: Documentation/gcc-plugins.txt GASKET DRIVER FRAMEWORK M: Rob Springer -M: John Joseph +M: Todd Poynor M: Ben Chan S: Maintained F: drivers/staging/gasket/ From b2d7a075a1ccef2fb321d595802190c8e9b39004 Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Tue, 21 Aug 2018 17:37:55 +0200 Subject: [PATCH 0205/1762] x86/pae: use 64 bit atomic xchg function in native_ptep_get_and_clear Using only 32-bit writes for the pte will result in an intermediate L1TF vulnerable PTE. When running as a Xen PV guest this will at once switch the guest to shadow mode resulting in a loss of performance. Use arch_atomic64_xchg() instead which will perform the requested operation atomically with all 64 bits. Some performance considerations according to: https://software.intel.com/sites/default/files/managed/ad/dc/Intel-Xeon-Scalable-Processor-throughput-latency.pdf The main number should be the latency, as there is no tight loop around native_ptep_get_and_clear(). "lock cmpxchg8b" has a latency of 20 cycles, while "lock xchg" (with a memory operand) isn't mentioned in that document. "lock xadd" (with xadd having 3 cycles less latency than xchg) has a latency of 11, so we can assume a latency of 14 for "lock xchg". Signed-off-by: Juergen Gross Reviewed-by: Thomas Gleixner Reviewed-by: Jan Beulich Tested-by: Jason Andryuk Signed-off-by: Boris Ostrovsky --- arch/x86/include/asm/pgtable-3level.h | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h index a564084c6141..f8b1ad2c3828 100644 --- a/arch/x86/include/asm/pgtable-3level.h +++ b/arch/x86/include/asm/pgtable-3level.h @@ -2,6 +2,8 @@ #ifndef _ASM_X86_PGTABLE_3LEVEL_H #define _ASM_X86_PGTABLE_3LEVEL_H +#include + /* * Intel Physical Address Extension (PAE) Mode - three-level page * tables on PPro+ CPUs. @@ -150,10 +152,7 @@ static inline pte_t native_ptep_get_and_clear(pte_t *ptep) { pte_t res; - /* xchg acts as a barrier before the setting of the high bits */ - res.pte_low = xchg(&ptep->pte_low, 0); - res.pte_high = ptep->pte_high; - ptep->pte_high = 0; + res.pte = (pteval_t)arch_atomic64_xchg((atomic64_t *)ptep, 0); return res; } From 336d139f8718b1336c9d22f0e462611ae1229850 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 27 Aug 2018 16:01:41 +0900 Subject: [PATCH 0206/1762] mtd: rawnand: denali: do not pass zero maxchips to nand_scan() Commit 49aa76b16676 ("mtd: rawnand: do not execute nand_scan_ident() if maxchips is zero") gave a new meaning for calling nand_scan_ident() with maxchips=0. It is a special usage for some drivers such as docg4, but actually the Denali driver may pass maxchips=0 to nand_scan() when the driver is enabled but no NAND chip is found on the board for some reasons. If nand_scan_with_ids() is called with maxchips=0, nand_scan_ident() is skipped, then nand_set_defaults() is skipped as well. Thus, the driver must set chip->controller beforehand. Otherwise, nand_attach() causes NULL pointer dereference. In fact, the Denali controller knows the number of connected chips before calling nand_scan_ident(); if DEVICE_RESET fails, there is no chip in that chip select. Then, denali_reset_banks() sets the maxchips to the number of detected chips. If no chip is found, maxchips is zero. In this case, there is no point for calling nand_scan() because we know it will fail for sure. Let's make the probe function fail immediately. Fixes: 49aa76b16676 ("mtd: rawnand: do not execute nand_scan_ident() if maxchips is zero") Signed-off-by: Masahiro Yamada Acked-by: Miquel Raynal Signed-off-by: Boris Brezillon --- drivers/mtd/nand/raw/denali.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c index ca18612c4201..67b2065e7a19 100644 --- a/drivers/mtd/nand/raw/denali.c +++ b/drivers/mtd/nand/raw/denali.c @@ -1338,6 +1338,11 @@ int denali_init(struct denali_nand_info *denali) denali_enable_irq(denali); denali_reset_banks(denali); + if (!denali->max_banks) { + /* Error out earlier if no chip is found for some reasons. */ + ret = -ENODEV; + goto disable_irq; + } denali->active_bank = DENALI_INVALID_BANK; From b0a84beb2e35536839ea289182684528f379b860 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Mon, 27 Aug 2018 13:32:12 -0600 Subject: [PATCH 0207/1762] blk-wbt: remove dead code We already note and mark discard and swap IO from bio_to_wbt_flags(). Signed-off-by: Jens Axboe --- block/blk-wbt.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/block/blk-wbt.c b/block/blk-wbt.c index bfb0d21d19ce..8e20a0677dcf 100644 --- a/block/blk-wbt.c +++ b/block/blk-wbt.c @@ -636,11 +636,6 @@ static void wbt_wait(struct rq_qos *rqos, struct bio *bio, spinlock_t *lock) return; } - if (current_is_kswapd()) - flags |= WBT_KSWAPD; - if (bio_op(bio) == REQ_OP_DISCARD) - flags |= WBT_DISCARD; - __wbt_wait(rwb, flags, bio->bi_opf, lock); if (!blk_stat_is_active(rwb->cb)) From 88bc243a3f22b9938c0b53c577dee28025cdb920 Mon Sep 17 00:00:00 2001 From: Anders Roxell Date: Fri, 24 Aug 2018 14:49:41 +0200 Subject: [PATCH 0208/1762] selftests: android: move config up a level 'make kselftest-merge' assumes that the config files for the tests are located under the 'main' test dir, like tools/testing/selftests/android/ and not in a subdir to android. Signed-off-by: Anders Roxell Signed-off-by: Shuah Khan (Samsung OSG) --- tools/testing/selftests/android/{ion => }/config | 0 1 file changed, 0 insertions(+), 0 deletions(-) rename tools/testing/selftests/android/{ion => }/config (100%) diff --git a/tools/testing/selftests/android/ion/config b/tools/testing/selftests/android/config similarity index 100% rename from tools/testing/selftests/android/ion/config rename to tools/testing/selftests/android/config From fca5d959972c18839f0306f19df2f121623447dd Mon Sep 17 00:00:00 2001 From: Felix Kuehling Date: Tue, 21 Aug 2018 17:14:32 -0400 Subject: [PATCH 0209/1762] drm/amdgpu: Adjust the VM size based on system memory size v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Set the VM size based on system memory size between the ASIC-specific limits given by min_vm_size and max_bits. GFXv9 GPUs will keep their default VM size of 256TB (48 bit). Only older GPUs will adjust VM size depending on system memory size. This makes more VM space available for ROCm applications on GFXv8 GPUs that want to map all available VRAM and system memory in their SVM address space. v2: * Clarify comment * Round up memory size before >> 30 * Round up automatic vm_size to power of two Signed-off-by: Felix Kuehling Acked-by: Junwei Zhang Reviewed-by: Huang Rui Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 32 ++++++++++++++++++++++---- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 2 +- 2 files changed, 29 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index e40ca8676418..d174d50e3bd3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -2483,28 +2483,52 @@ static uint32_t amdgpu_vm_get_block_size(uint64_t vm_size) * amdgpu_vm_adjust_size - adjust vm size, block size and fragment size * * @adev: amdgpu_device pointer - * @vm_size: the default vm size if it's set auto + * @min_vm_size: the minimum vm size in GB if it's set auto * @fragment_size_default: Default PTE fragment size * @max_level: max VMPT level * @max_bits: max address space size in bits * */ -void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t vm_size, +void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t min_vm_size, uint32_t fragment_size_default, unsigned max_level, unsigned max_bits) { + unsigned int max_size = 1 << (max_bits - 30); + unsigned int vm_size; uint64_t tmp; /* adjust vm size first */ if (amdgpu_vm_size != -1) { - unsigned max_size = 1 << (max_bits - 30); - vm_size = amdgpu_vm_size; if (vm_size > max_size) { dev_warn(adev->dev, "VM size (%d) too large, max is %u GB\n", amdgpu_vm_size, max_size); vm_size = max_size; } + } else { + struct sysinfo si; + unsigned int phys_ram_gb; + + /* Optimal VM size depends on the amount of physical + * RAM available. Underlying requirements and + * assumptions: + * + * - Need to map system memory and VRAM from all GPUs + * - VRAM from other GPUs not known here + * - Assume VRAM <= system memory + * - On GFX8 and older, VM space can be segmented for + * different MTYPEs + * - Need to allow room for fragmentation, guard pages etc. + * + * This adds up to a rough guess of system memory x3. + * Round up to power of two to maximize the available + * VM size with the given page table size. + */ + si_meminfo(&si); + phys_ram_gb = ((uint64_t)si.totalram * si.mem_unit + + (1 << 30) - 1) >> 30; + vm_size = roundup_pow_of_two( + min(max(phys_ram_gb * 3, min_vm_size), max_size)); } adev->vm_manager.max_pfn = (uint64_t)vm_size << 18; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 67a15d439ac0..9fa9df0c5e7f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -321,7 +321,7 @@ struct amdgpu_bo_va_mapping *amdgpu_vm_bo_lookup_mapping(struct amdgpu_vm *vm, void amdgpu_vm_bo_trace_cs(struct amdgpu_vm *vm, struct ww_acquire_ctx *ticket); void amdgpu_vm_bo_rmv(struct amdgpu_device *adev, struct amdgpu_bo_va *bo_va); -void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t vm_size, +void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t min_vm_size, uint32_t fragment_size_default, unsigned max_level, unsigned max_bits); int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); From 8ef23364b654d44244400d79988e677e504b21ba Mon Sep 17 00:00:00 2001 From: Rex Zhu Date: Fri, 24 Aug 2018 17:26:23 +0800 Subject: [PATCH 0210/1762] drm/amdgpu: Enable/disable gfx PG feature in rlc safe mode This is required by gfx hw and can fix the rlc hang when do s3 stree test on Cz/St. Reviewed-by: Alex Deucher Signed-off-by: Hang Zhou Signed-off-by: Rex Zhu Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index 5cd45210113f..5a9534a82d40 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -5664,6 +5664,11 @@ static int gfx_v8_0_set_powergating_state(void *handle, if (amdgpu_sriov_vf(adev)) return 0; + if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_SMG | + AMD_PG_SUPPORT_RLC_SMU_HS | + AMD_PG_SUPPORT_CP | + AMD_PG_SUPPORT_GFX_DMG)) + adev->gfx.rlc.funcs->enter_safe_mode(adev); switch (adev->asic_type) { case CHIP_CARRIZO: case CHIP_STONEY: @@ -5713,7 +5718,11 @@ static int gfx_v8_0_set_powergating_state(void *handle, default: break; } - + if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_SMG | + AMD_PG_SUPPORT_RLC_SMU_HS | + AMD_PG_SUPPORT_CP | + AMD_PG_SUPPORT_GFX_DMG)) + adev->gfx.rlc.funcs->exit_safe_mode(adev); return 0; } From 6d39df146ff12fb5c71634ad135144d5423590ec Mon Sep 17 00:00:00 2001 From: Rex Zhu Date: Thu, 23 Aug 2018 15:30:45 +0800 Subject: [PATCH 0211/1762] drm/amdgpu: Fix vce initialize failed on Kaveri/Mullins MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Forgot to add vce pg support via smu for Kaveri/Mullins. Fixes: 561a5c83eadd ("drm/amd/pp: Unify powergate_uvd/vce/mmhub to set_powergating_by_smu") v2: refine patch descriptions suggested by Michel Reviewed-by: Alex Deucher Tested-by: Michel Dänzer Signed-off-by: Rex Zhu Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/kv_dpm.c | 41 ++++++++++++++++++----------- 1 file changed, 26 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c index 3f57f6463dc8..a713c8b6e09c 100644 --- a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c @@ -66,7 +66,6 @@ static int kv_set_thermal_temperature_range(struct amdgpu_device *adev, static int kv_init_fps_limits(struct amdgpu_device *adev); static void kv_dpm_powergate_uvd(void *handle, bool gate); -static void kv_dpm_powergate_vce(struct amdgpu_device *adev, bool gate); static void kv_dpm_powergate_samu(struct amdgpu_device *adev, bool gate); static void kv_dpm_powergate_acp(struct amdgpu_device *adev, bool gate); @@ -1374,6 +1373,8 @@ static int kv_dpm_enable(struct amdgpu_device *adev) static void kv_dpm_disable(struct amdgpu_device *adev) { + struct kv_power_info *pi = kv_get_pi(adev); + amdgpu_irq_put(adev, &adev->pm.dpm.thermal.irq, AMDGPU_THERMAL_IRQ_LOW_TO_HIGH); amdgpu_irq_put(adev, &adev->pm.dpm.thermal.irq, @@ -1387,7 +1388,8 @@ static void kv_dpm_disable(struct amdgpu_device *adev) /* powerup blocks */ kv_dpm_powergate_acp(adev, false); kv_dpm_powergate_samu(adev, false); - kv_dpm_powergate_vce(adev, false); + if (pi->caps_vce_pg) /* power on the VCE block */ + amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_VCEPowerON); kv_dpm_powergate_uvd(adev, false); kv_enable_smc_cac(adev, false); @@ -1551,7 +1553,6 @@ static int kv_update_vce_dpm(struct amdgpu_device *adev, int ret; if (amdgpu_new_state->evclk > 0 && amdgpu_current_state->evclk == 0) { - kv_dpm_powergate_vce(adev, false); if (pi->caps_stable_p_state) pi->vce_boot_level = table->count - 1; else @@ -1573,7 +1574,6 @@ static int kv_update_vce_dpm(struct amdgpu_device *adev, kv_enable_vce_dpm(adev, true); } else if (amdgpu_new_state->evclk == 0 && amdgpu_current_state->evclk > 0) { kv_enable_vce_dpm(adev, false); - kv_dpm_powergate_vce(adev, true); } return 0; @@ -1702,24 +1702,32 @@ static void kv_dpm_powergate_uvd(void *handle, bool gate) } } -static void kv_dpm_powergate_vce(struct amdgpu_device *adev, bool gate) +static void kv_dpm_powergate_vce(void *handle, bool gate) { + struct amdgpu_device *adev = (struct amdgpu_device *)handle; struct kv_power_info *pi = kv_get_pi(adev); - - if (pi->vce_power_gated == gate) - return; + int ret; pi->vce_power_gated = gate; - if (!pi->caps_vce_pg) - return; - - if (gate) - amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_VCEPowerOFF); - else - amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_VCEPowerON); + if (gate) { + /* stop the VCE block */ + ret = amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE, + AMD_PG_STATE_GATE); + kv_enable_vce_dpm(adev, false); + if (pi->caps_vce_pg) /* power off the VCE block */ + amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_VCEPowerOFF); + } else { + if (pi->caps_vce_pg) /* power on the VCE block */ + amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_VCEPowerON); + kv_enable_vce_dpm(adev, true); + /* re-init the VCE block */ + ret = amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE, + AMD_PG_STATE_UNGATE); + } } + static void kv_dpm_powergate_samu(struct amdgpu_device *adev, bool gate) { struct kv_power_info *pi = kv_get_pi(adev); @@ -3313,6 +3321,9 @@ static int kv_set_powergating_by_smu(void *handle, case AMD_IP_BLOCK_TYPE_UVD: kv_dpm_powergate_uvd(handle, gate); break; + case AMD_IP_BLOCK_TYPE_VCE: + kv_dpm_powergate_vce(handle, gate); + break; default: break; } From 2ab4d0e74256fc49b7b270f63c1d1e47c2455abc Mon Sep 17 00:00:00 2001 From: Rex Zhu Date: Fri, 24 Aug 2018 16:17:54 +0800 Subject: [PATCH 0212/1762] drm/amdgpu: Update power state at the end of smu hw_init. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For SI/Kv, the power state is managed by function amdgpu_pm_compute_clocks. when dpm enabled, we should call amdgpu_pm_compute_clocks to update current power state instand of set boot state. this change can fix the oops when kfd driver was enabled on Kv. Reviewed-by: Alex Deucher Tested-by: Michel Dänzer Signed-off-by: Rex Zhu Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/kv_dpm.c | 4 +--- drivers/gpu/drm/amd/amdgpu/si_dpm.c | 3 +-- 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c index a713c8b6e09c..b497c37cef7e 100644 --- a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c @@ -1353,8 +1353,6 @@ static int kv_dpm_enable(struct amdgpu_device *adev) return ret; } - kv_update_current_ps(adev, adev->pm.dpm.boot_ps); - if (adev->irq.installed && amdgpu_is_internal_thermal_sensor(adev->pm.int_thermal_type)) { ret = kv_set_thermal_temperature_range(adev, KV_TEMP_RANGE_MIN, KV_TEMP_RANGE_MAX); @@ -3069,7 +3067,7 @@ static int kv_dpm_hw_init(void *handle) else adev->pm.dpm_enabled = true; mutex_unlock(&adev->pm.mutex); - + amdgpu_pm_compute_clocks(adev); return ret; } diff --git a/drivers/gpu/drm/amd/amdgpu/si_dpm.c b/drivers/gpu/drm/amd/amdgpu/si_dpm.c index db327b412562..1de96995e690 100644 --- a/drivers/gpu/drm/amd/amdgpu/si_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/si_dpm.c @@ -6887,7 +6887,6 @@ static int si_dpm_enable(struct amdgpu_device *adev) si_enable_auto_throttle_source(adev, AMDGPU_DPM_AUTO_THROTTLE_SRC_THERMAL, true); si_thermal_start_thermal_controller(adev); - ni_update_current_ps(adev, boot_ps); return 0; } @@ -7763,7 +7762,7 @@ static int si_dpm_hw_init(void *handle) else adev->pm.dpm_enabled = true; mutex_unlock(&adev->pm.mutex); - + amdgpu_pm_compute_clocks(adev); return ret; } From 72ef23de207bad349ddc648296f330e176ac175b Mon Sep 17 00:00:00 2001 From: Rex Zhu Date: Thu, 23 Aug 2018 15:41:57 +0800 Subject: [PATCH 0213/1762] drm/amdgpu: Power on uvd block when hw_fini MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit when hw_fini/suspend, smu only need to power on uvd block if uvd pg is supported, don't need to call uvd to do hw_init. v2: fix typo in patch descriptions and comments. Reviewed-by: Alex Deucher Tested-by: Michel Dänzer Signed-off-by: Rex Zhu Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/kv_dpm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c index b497c37cef7e..cb79a93c2eb7 100644 --- a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c @@ -65,7 +65,6 @@ static int kv_set_thermal_temperature_range(struct amdgpu_device *adev, int min_temp, int max_temp); static int kv_init_fps_limits(struct amdgpu_device *adev); -static void kv_dpm_powergate_uvd(void *handle, bool gate); static void kv_dpm_powergate_samu(struct amdgpu_device *adev, bool gate); static void kv_dpm_powergate_acp(struct amdgpu_device *adev, bool gate); @@ -1388,7 +1387,8 @@ static void kv_dpm_disable(struct amdgpu_device *adev) kv_dpm_powergate_samu(adev, false); if (pi->caps_vce_pg) /* power on the VCE block */ amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_VCEPowerON); - kv_dpm_powergate_uvd(adev, false); + if (pi->caps_uvd_pg) /* power on the UVD block */ + amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_UVDPowerON); kv_enable_smc_cac(adev, false); kv_enable_didt(adev, false); From 4a2de54dc1d7668fa364d8483420ba64b120963b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Fri, 24 Aug 2018 14:48:02 +0200 Subject: [PATCH 0214/1762] drm/amdgpu: fix holding mn_lock while allocating memory MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We can't hold the mn_lock while allocating memory. Signed-off-by: Christian König Acked-by: Chunming Zhou Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 31 ++++++++++++++++---------- 1 file changed, 19 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 09703c87d676..b6e9df11115d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -1203,26 +1203,24 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p, int r; + job = p->job; + p->job = NULL; + + r = drm_sched_job_init(&job->base, entity, p->filp); + if (r) + goto error_unlock; + + /* No memory allocation is allowed while holding the mn lock */ amdgpu_mn_lock(p->mn); amdgpu_bo_list_for_each_userptr_entry(e, p->bo_list) { struct amdgpu_bo *bo = e->robj; if (amdgpu_ttm_tt_userptr_needs_pages(bo->tbo.ttm)) { - amdgpu_mn_unlock(p->mn); - return -ERESTARTSYS; + r = -ERESTARTSYS; + goto error_abort; } } - job = p->job; - p->job = NULL; - - r = drm_sched_job_init(&job->base, entity, p->filp); - if (r) { - amdgpu_job_free(job); - amdgpu_mn_unlock(p->mn); - return r; - } - job->owner = p->filp; p->fence = dma_fence_get(&job->base.s_fence->finished); @@ -1260,6 +1258,15 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p, amdgpu_mn_unlock(p->mn); return 0; + +error_abort: + dma_fence_put(&job->base.s_fence->finished); + job->base.s_fence = NULL; + +error_unlock: + amdgpu_job_free(job); + amdgpu_mn_unlock(p->mn); + return r; } int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) From e7603dadd3cc2fa65924d9e8ce0c6f2964866da0 Mon Sep 17 00:00:00 2001 From: SivapiriyanKumarasamy Date: Wed, 15 Aug 2018 16:55:18 -0400 Subject: [PATCH 0215/1762] drm/amd/display: Fix memory leak caused by missed dc_sink_release [Why] There is currently an intermittent hang from a memory leak in DTN stress testing. It is caused by unfreed memory during driver disable. [How] Do a dc_sink_release in the case that skips it incorrectly. Signed-off-by: SivapiriyanKumarasamy Reviewed-by: Aric Cyr Acked-by: Leo Li Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc_link.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 567867915d32..37eaf72ace54 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -754,8 +754,12 @@ bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason) * fail-safe mode */ if (dc_is_hdmi_signal(link->connector_signal) || - dc_is_dvi_signal(link->connector_signal)) + dc_is_dvi_signal(link->connector_signal)) { + if (prev_sink != NULL) + dc_sink_release(prev_sink); + return false; + } default: break; } From 2f4e7db0f7456d8312de88d321b889dbd10c18fd Mon Sep 17 00:00:00 2001 From: Rex Zhu Date: Thu, 23 Aug 2018 11:46:13 +0800 Subject: [PATCH 0216/1762] drm/amdgpu: Remove duplicated power source update when ac/dc switch, driver will be notified by acpi event. then the power source will be updated. so don't need to get power source when set power state. Reviewed-by: Alex Deucher Signed-off-by: Rex Zhu Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index 8f98629fbe59..7b4e657a95c7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -1932,14 +1932,6 @@ void amdgpu_pm_compute_clocks(struct amdgpu_device *adev) amdgpu_fence_wait_empty(ring); } - mutex_lock(&adev->pm.mutex); - /* update battery/ac status */ - if (power_supply_is_system_supplied() > 0) - adev->pm.ac_power = true; - else - adev->pm.ac_power = false; - mutex_unlock(&adev->pm.mutex); - if (adev->powerplay.pp_funcs->dispatch_tasks) { if (!amdgpu_device_has_dc_support(adev)) { mutex_lock(&adev->pm.mutex); From c31d02d1290e1e82a08015199e408228e152991f Mon Sep 17 00:00:00 2001 From: Thiago Jung Bauermann Date: Tue, 24 Jul 2018 23:57:25 -0300 Subject: [PATCH 0217/1762] selftests: kselftest: Remove outdated comment Commit 3c07aaef6598 ("selftests: kselftest: change KSFT_SKIP=4 instead of KSFT_PASS") reverted commit 11867a77eb85 ("selftests: kselftest framework: change skip exit code to 0") but missed removing the comment which that commit added, so do that now. Signed-off-by: Thiago Jung Bauermann Signed-off-by: Shuah Khan (Samsung OSG) --- tools/testing/selftests/kselftest.h | 1 - 1 file changed, 1 deletion(-) diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h index 15e6b75fc3a5..a3edb2c8e43d 100644 --- a/tools/testing/selftests/kselftest.h +++ b/tools/testing/selftests/kselftest.h @@ -19,7 +19,6 @@ #define KSFT_FAIL 1 #define KSFT_XFAIL 2 #define KSFT_XPASS 3 -/* Treat skip as pass */ #define KSFT_SKIP 4 /* counters */ From 46cb52ad414ac829680d0bb8cc7090ac2b577ca7 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Sun, 15 Jul 2018 22:09:29 +0200 Subject: [PATCH 0218/1762] ata: ftide010: Add a quirk for SQ201 The DMA is broken on this specific device for some unknown reason (probably badly designed or plain broken interface electronics) and will only work with PIO. Other users of the same hardware does not have this problem. Add a specific quirk so that this Gemini device gets DMA turned off. Also fix up some code around passing the port information around in probe while we're at it. Signed-off-by: Linus Walleij Signed-off-by: Jens Axboe --- drivers/ata/pata_ftide010.c | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-) diff --git a/drivers/ata/pata_ftide010.c b/drivers/ata/pata_ftide010.c index 5d4b72e21161..569a4a662dcd 100644 --- a/drivers/ata/pata_ftide010.c +++ b/drivers/ata/pata_ftide010.c @@ -256,14 +256,12 @@ static struct ata_port_operations pata_ftide010_port_ops = { .qc_issue = ftide010_qc_issue, }; -static struct ata_port_info ftide010_port_info[] = { - { - .flags = ATA_FLAG_SLAVE_POSS, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA6, - .pio_mask = ATA_PIO4, - .port_ops = &pata_ftide010_port_ops, - }, +static struct ata_port_info ftide010_port_info = { + .flags = ATA_FLAG_SLAVE_POSS, + .mwdma_mask = ATA_MWDMA2, + .udma_mask = ATA_UDMA6, + .pio_mask = ATA_PIO4, + .port_ops = &pata_ftide010_port_ops, }; #if IS_ENABLED(CONFIG_SATA_GEMINI) @@ -349,6 +347,7 @@ static int pata_ftide010_gemini_cable_detect(struct ata_port *ap) } static int pata_ftide010_gemini_init(struct ftide010 *ftide, + struct ata_port_info *pi, bool is_ata1) { struct device *dev = ftide->dev; @@ -373,7 +372,13 @@ static int pata_ftide010_gemini_init(struct ftide010 *ftide, /* Flag port as SATA-capable */ if (gemini_sata_bridge_enabled(sg, is_ata1)) - ftide010_port_info[0].flags |= ATA_FLAG_SATA; + pi->flags |= ATA_FLAG_SATA; + + /* This device has broken DMA, only PIO works */ + if (of_machine_is_compatible("itian,sq201")) { + pi->mwdma_mask = 0; + pi->udma_mask = 0; + } /* * We assume that a simple 40-wire cable is used in the PATA mode. @@ -435,6 +440,7 @@ static int pata_ftide010_gemini_init(struct ftide010 *ftide, } #else static int pata_ftide010_gemini_init(struct ftide010 *ftide, + struct ata_port_info *pi, bool is_ata1) { return -ENOTSUPP; @@ -446,7 +452,7 @@ static int pata_ftide010_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; - const struct ata_port_info pi = ftide010_port_info[0]; + struct ata_port_info pi = ftide010_port_info; const struct ata_port_info *ppi[] = { &pi, NULL }; struct ftide010 *ftide; struct resource *res; @@ -490,6 +496,7 @@ static int pata_ftide010_probe(struct platform_device *pdev) * are ATA0. This will also set up the cable types. */ ret = pata_ftide010_gemini_init(ftide, + &pi, (res->start == 0x63400000)); if (ret) goto err_dis_clk; From bab1be79a5169ac748d8292b20c86d874022d7ba Mon Sep 17 00:00:00 2001 From: Xin Long Date: Mon, 27 Aug 2018 18:38:31 +0800 Subject: [PATCH 0219/1762] sctp: hold transport before accessing its asoc in sctp_transport_get_next As Marcelo noticed, in sctp_transport_get_next, it is iterating over transports but then also accessing the association directly, without checking any refcnts before that, which can cause an use-after-free Read. So fix it by holding transport before accessing the association. With that, sctp_transport_hold calls can be removed in the later places. Fixes: 626d16f50f39 ("sctp: export some apis or variables for sctp_diag and reuse some for proc") Reported-by: syzbot+fe62a0c9aa6a85c6de16@syzkaller.appspotmail.com Signed-off-by: Xin Long Acked-by: Neil Horman Acked-by: Marcelo Ricardo Leitner Signed-off-by: David S. Miller --- net/sctp/proc.c | 4 ---- net/sctp/socket.c | 22 +++++++++++++++------- 2 files changed, 15 insertions(+), 11 deletions(-) diff --git a/net/sctp/proc.c b/net/sctp/proc.c index ef5c9a82d4e8..4d6f1c8d6659 100644 --- a/net/sctp/proc.c +++ b/net/sctp/proc.c @@ -264,8 +264,6 @@ static int sctp_assocs_seq_show(struct seq_file *seq, void *v) } transport = (struct sctp_transport *)v; - if (!sctp_transport_hold(transport)) - return 0; assoc = transport->asoc; epb = &assoc->base; sk = epb->sk; @@ -322,8 +320,6 @@ static int sctp_remaddr_seq_show(struct seq_file *seq, void *v) } transport = (struct sctp_transport *)v; - if (!sctp_transport_hold(transport)) - return 0; assoc = transport->asoc; list_for_each_entry_rcu(tsp, &assoc->peer.transport_addr_list, diff --git a/net/sctp/socket.c b/net/sctp/socket.c index e96b15a66aba..aa76586a1a1c 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -5005,9 +5005,14 @@ struct sctp_transport *sctp_transport_get_next(struct net *net, break; } + if (!sctp_transport_hold(t)) + continue; + if (net_eq(sock_net(t->asoc->base.sk), net) && t->asoc->peer.primary_path == t) break; + + sctp_transport_put(t); } return t; @@ -5017,13 +5022,18 @@ struct sctp_transport *sctp_transport_get_idx(struct net *net, struct rhashtable_iter *iter, int pos) { - void *obj = SEQ_START_TOKEN; + struct sctp_transport *t; - while (pos && (obj = sctp_transport_get_next(net, iter)) && - !IS_ERR(obj)) - pos--; + if (!pos) + return SEQ_START_TOKEN; - return obj; + while ((t = sctp_transport_get_next(net, iter)) && !IS_ERR(t)) { + if (!--pos) + break; + sctp_transport_put(t); + } + + return t; } int sctp_for_each_endpoint(int (*cb)(struct sctp_endpoint *, void *), @@ -5082,8 +5092,6 @@ again: tsp = sctp_transport_get_idx(net, &hti, *pos + 1); for (; !IS_ERR_OR_NULL(tsp); tsp = sctp_transport_get_next(net, &hti)) { - if (!sctp_transport_hold(tsp)) - continue; ret = cb(tsp, p); if (ret) break; From 834539e69a5fe2aab33cc777ccfd4a4fcc5b9770 Mon Sep 17 00:00:00 2001 From: Xin Long Date: Mon, 27 Aug 2018 18:40:18 +0800 Subject: [PATCH 0220/1762] sctp: remove useless start_fail from sctp_ht_iter in proc After changing rhashtable_walk_start to return void, start_fail would never be set other value than 0, and the checking for start_fail is pointless, so remove it. Fixes: 97a6ec4ac021 ("rhashtable: Change rhashtable_walk_start to return void") Signed-off-by: Xin Long Acked-by: Neil Horman Acked-by: Marcelo Ricardo Leitner Signed-off-by: David S. Miller --- net/sctp/proc.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/net/sctp/proc.c b/net/sctp/proc.c index 4d6f1c8d6659..a644292f9faf 100644 --- a/net/sctp/proc.c +++ b/net/sctp/proc.c @@ -215,7 +215,6 @@ static const struct seq_operations sctp_eps_ops = { struct sctp_ht_iter { struct seq_net_private p; struct rhashtable_iter hti; - int start_fail; }; static void *sctp_transport_seq_start(struct seq_file *seq, loff_t *pos) @@ -224,7 +223,6 @@ static void *sctp_transport_seq_start(struct seq_file *seq, loff_t *pos) sctp_transport_walk_start(&iter->hti); - iter->start_fail = 0; return sctp_transport_get_idx(seq_file_net(seq), &iter->hti, *pos); } @@ -232,8 +230,6 @@ static void sctp_transport_seq_stop(struct seq_file *seq, void *v) { struct sctp_ht_iter *iter = seq->private; - if (iter->start_fail) - return; sctp_transport_walk_stop(&iter->hti); } From 84581bdae9587023cea1d139523f0ef0f28bd88d Mon Sep 17 00:00:00 2001 From: Xin Long Date: Mon, 27 Aug 2018 18:41:32 +0800 Subject: [PATCH 0221/1762] erspan: set erspan_ver to 1 by default when adding an erspan dev After erspan_ver is introudced, if erspan_ver is not set in iproute, its value will be left 0 by default. Since Commit 02f99df1875c ("erspan: fix invalid erspan version."), it has broken the traffic due to the version check in erspan_xmit if users are not aware of 'erspan_ver' param, like using an old version of iproute. To fix this compatibility problem, it sets erspan_ver to 1 by default when adding an erspan dev in erspan_setup. Note that we can't do it in ipgre_netlink_parms, as this function is also used by ipgre_changelink. Fixes: 02f99df1875c ("erspan: fix invalid erspan version.") Reported-by: Jianlin Shi Signed-off-by: Xin Long Signed-off-by: David S. Miller --- net/ipv4/ip_gre.c | 3 +++ net/ipv6/ip6_gre.c | 1 + 2 files changed, 4 insertions(+) diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 51a5d06085ac..ae714aecc31c 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -1508,11 +1508,14 @@ nla_put_failure: static void erspan_setup(struct net_device *dev) { + struct ip_tunnel *t = netdev_priv(dev); + ether_setup(dev); dev->netdev_ops = &erspan_netdev_ops; dev->priv_flags &= ~IFF_TX_SKB_SHARING; dev->priv_flags |= IFF_LIVE_ADDR_CHANGE; ip_tunnel_setup(dev, erspan_net_id); + t->erspan_ver = 1; } static const struct nla_policy ipgre_policy[IFLA_GRE_MAX + 1] = { diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index 18a3794b0f52..e493b041d4ac 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -1778,6 +1778,7 @@ static void ip6gre_netlink_parms(struct nlattr *data[], if (data[IFLA_GRE_COLLECT_METADATA]) parms->collect_md = true; + parms->erspan_ver = 1; if (data[IFLA_GRE_ERSPAN_VER]) parms->erspan_ver = nla_get_u8(data[IFLA_GRE_ERSPAN_VER]); From d5ed72a55bc0a321ef33d272e2b0bf0d2b06d1fe Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Mon, 27 Aug 2018 20:58:43 +0200 Subject: [PATCH 0222/1762] net: sched: fix extack error message when chain is failed to be created Instead "Cannot find" say "Cannot create". Fixes: c35a4acc2985 ("net: sched: cls_api: handle generic cls errors") Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- net/sched/cls_api.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index 31bd1439cf60..2d41c5b21b48 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -1252,7 +1252,7 @@ replay: } chain = tcf_chain_get(block, chain_index, true); if (!chain) { - NL_SET_ERR_MSG(extack, "Cannot find specified filter chain"); + NL_SET_ERR_MSG(extack, "Cannot create specified filter chain"); err = -ENOMEM; goto errout; } From b7b4247d553939ccf02ff597ec60f41a2f93ee8e Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Mon, 27 Aug 2018 20:58:44 +0200 Subject: [PATCH 0223/1762] net: sched: return -ENOENT when trying to remove filter from non-existent chain When chain 0 was implicitly created, removal of non-existent filter from chain 0 gave -ENOENT. Once chain 0 became non-implicit, the same call is giving -EINVAL. Fix this by returning -ENOENT in that case. Reported-by: Roman Mashak Fixes: f71e0ca4db18 ("net: sched: Avoid implicit chain 0 creation") Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- net/sched/cls_api.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index 2d41c5b21b48..1a67af8a6e8c 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -1399,7 +1399,7 @@ static int tc_del_tfilter(struct sk_buff *skb, struct nlmsghdr *n, goto errout; } NL_SET_ERR_MSG(extack, "Cannot find specified filter chain"); - err = -EINVAL; + err = -ENOENT; goto errout; } From 30935198b7d0be12b1c45c328b66a7fdefb16256 Mon Sep 17 00:00:00 2001 From: Haiqing Bai Date: Mon, 27 Aug 2018 09:32:26 +0800 Subject: [PATCH 0224/1762] tipc: fix the big/little endian issue in tipc_dest In function tipc_dest_push, the 32bit variables 'node' and 'port' are stored separately in uppper and lower part of 64bit 'value'. Then this value is assigned to dst->value which is a union like: union { struct { u32 port; u32 node; }; u64 value; } This works on little-endian machines like x86 but fails on big-endian machines. The fix remove the 'value' stack parameter and even the 'value' member of the union in tipc_dest, assign the 'node' and 'port' member directly with the input parameter to avoid the endian issue. Fixes: a80ae5306a73 ("tipc: improve destination linked list") Signed-off-by: Zhenbo Gao Acked-by: Jon Maloy Signed-off-by: Haiqing Bai Signed-off-by: David S. Miller --- net/tipc/name_table.c | 10 ++++------ net/tipc/name_table.h | 9 ++------- 2 files changed, 6 insertions(+), 13 deletions(-) diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index 88f027b502f6..66d5b2c5987a 100644 --- a/net/tipc/name_table.c +++ b/net/tipc/name_table.c @@ -980,20 +980,17 @@ int tipc_nl_name_table_dump(struct sk_buff *skb, struct netlink_callback *cb) struct tipc_dest *tipc_dest_find(struct list_head *l, u32 node, u32 port) { - u64 value = (u64)node << 32 | port; struct tipc_dest *dst; list_for_each_entry(dst, l, list) { - if (dst->value != value) - continue; - return dst; + if (dst->node == node && dst->port == port) + return dst; } return NULL; } bool tipc_dest_push(struct list_head *l, u32 node, u32 port) { - u64 value = (u64)node << 32 | port; struct tipc_dest *dst; if (tipc_dest_find(l, node, port)) @@ -1002,7 +999,8 @@ bool tipc_dest_push(struct list_head *l, u32 node, u32 port) dst = kmalloc(sizeof(*dst), GFP_ATOMIC); if (unlikely(!dst)) return false; - dst->value = value; + dst->node = node; + dst->port = port; list_add(&dst->list, l); return true; } diff --git a/net/tipc/name_table.h b/net/tipc/name_table.h index 0febba41da86..892bd750b85f 100644 --- a/net/tipc/name_table.h +++ b/net/tipc/name_table.h @@ -133,13 +133,8 @@ void tipc_nametbl_stop(struct net *net); struct tipc_dest { struct list_head list; - union { - struct { - u32 port; - u32 node; - }; - u64 value; - }; + u32 port; + u32 node; }; struct tipc_dest *tipc_dest_find(struct list_head *l, u32 node, u32 port); From ad8619864f0c9bd89e14d957afa3fd8aaf0720da Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 27 Aug 2018 00:20:11 +0200 Subject: [PATCH 0225/1762] net: dsa: Drop GPIO includes Commit 52638f71fcff ("dsa: Move gpio reset into switch driver") moved the GPIO handling into the switch drivers but forgot to remove the GPIO header includes. Signed-off-by: Linus Walleij Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- net/dsa/dsa.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index e63c554e0623..9f3209ff7ffd 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -19,12 +19,10 @@ #include #include #include -#include #include #include #include #include -#include #include #include "dsa_priv.h" From 53ae914d898e5dd5984d352d5fa0b23410f966a0 Mon Sep 17 00:00:00 2001 From: Zhu Yanjun Date: Sat, 25 Aug 2018 15:19:05 +0800 Subject: [PATCH 0226/1762] net/rds: Use rdma_read_gids to get connection SGID/DGID in IPv6 In IPv4, the newly introduced rdma_read_gids is used to read the SGID/DGID for the connection which returns GID correctly for RoCE transport as well. In IPv6, rdma_read_gids is also used. The following are why rdma_read_gids is introduced. rdma_addr_get_dgid() for RoCE for client side connections returns MAC address, instead of DGID. rdma_addr_get_sgid() for RoCE doesn't return correct SGID for IPv6 and when more than one IP address is assigned to the netdevice. So the transport agnostic rdma_read_gids() API is provided by rdma_cm module. Signed-off-by: Zhu Yanjun Acked-by: Santosh Shilimkar Signed-off-by: David S. Miller --- net/rds/ib.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/net/rds/ib.c b/net/rds/ib.c index c1d97640c0be..eba75c1ba359 100644 --- a/net/rds/ib.c +++ b/net/rds/ib.c @@ -341,15 +341,10 @@ static int rds6_ib_conn_info_visitor(struct rds_connection *conn, if (rds_conn_state(conn) == RDS_CONN_UP) { struct rds_ib_device *rds_ibdev; - struct rdma_dev_addr *dev_addr; ic = conn->c_transport_data; - dev_addr = &ic->i_cm_id->route.addr.dev_addr; - rdma_addr_get_sgid(dev_addr, - (union ib_gid *)&iinfo6->src_gid); - rdma_addr_get_dgid(dev_addr, - (union ib_gid *)&iinfo6->dst_gid); - + rdma_read_gids(ic->i_cm_id, (union ib_gid *)&iinfo6->src_gid, + (union ib_gid *)&iinfo6->dst_gid); rds_ibdev = ic->rds_ibdev; iinfo6->max_send_wr = ic->i_send_ring.w_nr; iinfo6->max_recv_wr = ic->i_recv_ring.w_nr; From 62d2a1940709198a522a43ff8be8b8f6b3654dec Mon Sep 17 00:00:00 2001 From: Chengguang Xu Date: Tue, 28 Aug 2018 07:31:11 +0800 Subject: [PATCH 0227/1762] block: remove unnecessary condition check kmem_cache_destroy() can handle NULL pointer correctly, so there is no need to check e->icq_cache before calling kmem_cache_destroy(). Signed-off-by: Chengguang Xu Signed-off-by: Jens Axboe --- block/elevator.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/block/elevator.c b/block/elevator.c index 5ea6e7d600e4..6a06b5d040e5 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -895,8 +895,7 @@ int elv_register(struct elevator_type *e) spin_lock(&elv_list_lock); if (elevator_find(e->elevator_name, e->uses_mq)) { spin_unlock(&elv_list_lock); - if (e->icq_cache) - kmem_cache_destroy(e->icq_cache); + kmem_cache_destroy(e->icq_cache); return -EBUSY; } list_add_tail(&e->list, &elv_list); From db193954ed9e35701b6e489fa4cc97b08589341b Mon Sep 17 00:00:00 2001 From: John Pittman Date: Mon, 27 Aug 2018 14:33:05 -0400 Subject: [PATCH 0228/1762] block: bsg: move atomic_t ref_count variable to refcount API Currently, variable ref_count within the bsg_device struct is of type atomic_t. For variables being used as reference counters, the refcount API should be used instead of atomic. The newer refcount API works to prevent counter overflows and use-after-free bugs. So, move this varable from the atomic API to refcount, potentially avoiding the issues mentioned. Signed-off-by: John Pittman Signed-off-by: Jens Axboe --- block/bsg.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/block/bsg.c b/block/bsg.c index db588add6ba6..9a442c23a715 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -37,7 +37,7 @@ struct bsg_device { struct request_queue *queue; spinlock_t lock; struct hlist_node dev_list; - atomic_t ref_count; + refcount_t ref_count; char name[20]; int max_queue; }; @@ -252,7 +252,7 @@ static int bsg_put_device(struct bsg_device *bd) mutex_lock(&bsg_mutex); - if (!atomic_dec_and_test(&bd->ref_count)) { + if (!refcount_dec_and_test(&bd->ref_count)) { mutex_unlock(&bsg_mutex); return 0; } @@ -290,7 +290,7 @@ static struct bsg_device *bsg_add_device(struct inode *inode, bd->queue = rq; - atomic_set(&bd->ref_count, 1); + refcount_set(&bd->ref_count, 1); hlist_add_head(&bd->dev_list, bsg_dev_idx_hash(iminor(inode))); strncpy(bd->name, dev_name(rq->bsg_dev.class_dev), sizeof(bd->name) - 1); @@ -308,7 +308,7 @@ static struct bsg_device *__bsg_get_device(int minor, struct request_queue *q) hlist_for_each_entry(bd, bsg_dev_idx_hash(minor), dev_list) { if (bd->queue == q) { - atomic_inc(&bd->ref_count); + refcount_inc(&bd->ref_count); goto found; } } From e06fa9c16ce4b740996189fa5610eabcee734e6c Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Fri, 24 Aug 2018 22:08:50 +0200 Subject: [PATCH 0229/1762] bpf, sockmap: fix potential use after free in bpf_tcp_close bpf_tcp_close() we pop the psock linkage to a map via psock_map_pop(). A parallel update on the sock hash map can happen between psock_map_pop() and lookup_elem_raw() where we override the element under link->hash / link->key. In bpf_tcp_close()'s lookup_elem_raw() we subsequently only test whether an element is present, but we do not test whether the element is infact the element we were looking for. We lock the sock in bpf_tcp_close() during that time, so do we hold the lock in sock_hash_update_elem(). However, the latter locks the sock which is newly updated, not the one we're purging from the hash table. This means that while one CPU is doing the lookup from bpf_tcp_close(), another CPU is doing the map update in parallel, dropped our sock from the hlist and released the psock. Subsequently the first CPU will find the new sock and attempts to drop and release the old sock yet another time. Fix is that we need to check the elements for a match after lookup, similar as we do in the sock map. Note that the hash tab elems are freed via RCU, so access to their link->hash / link->key is fine since we're under RCU read side there. Fixes: e9db4ef6bf4c ("bpf: sockhash fix omitted bucket lock in sock_close") Signed-off-by: Daniel Borkmann Acked-by: John Fastabend Signed-off-by: Alexei Starovoitov --- kernel/bpf/sockmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c index cf5195c7c331..01879e4d599a 100644 --- a/kernel/bpf/sockmap.c +++ b/kernel/bpf/sockmap.c @@ -369,7 +369,7 @@ static void bpf_tcp_close(struct sock *sk, long timeout) /* If another thread deleted this object skip deletion. * The refcnt on psock may or may not be zero. */ - if (l) { + if (l && l == link) { hlist_del_rcu(&link->hash_node); smap_release_sock(psock, link->sk); free_htab_elem(htab, link); From 15c480efab01197c965ce0562a43ffedd852b8f9 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Fri, 24 Aug 2018 22:08:51 +0200 Subject: [PATCH 0230/1762] bpf, sockmap: fix psock refcount leak in bpf_tcp_recvmsg In bpf_tcp_recvmsg() we first took a reference on the psock, however once we find that there are skbs in the normal socket's receive queue we return with processing them through tcp_recvmsg(). Problem is that we leak the taken reference on the psock in that path. Given we don't really do anything with the psock at this point, move the skb_queue_empty() test before we fetch the psock to fix this case. Fixes: 8934ce2fd081 ("bpf: sockmap redirect ingress support") Signed-off-by: Daniel Borkmann Acked-by: John Fastabend Signed-off-by: Alexei Starovoitov --- kernel/bpf/sockmap.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c index 01879e4d599a..26d8a3053407 100644 --- a/kernel/bpf/sockmap.c +++ b/kernel/bpf/sockmap.c @@ -912,6 +912,8 @@ static int bpf_tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, if (unlikely(flags & MSG_ERRQUEUE)) return inet_recv_error(sk, msg, len, addr_len); + if (!skb_queue_empty(&sk->sk_receive_queue)) + return tcp_recvmsg(sk, msg, len, nonblock, flags, addr_len); rcu_read_lock(); psock = smap_psock_sk(sk); @@ -922,9 +924,6 @@ static int bpf_tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, goto out; rcu_read_unlock(); - if (!skb_queue_empty(&sk->sk_receive_queue)) - return tcp_recvmsg(sk, msg, len, nonblock, flags, addr_len); - lock_sock(sk); bytes_ready: while (copied != len) { From 3f6e138d41ddff196f452993528cfe75762ede0f Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Mon, 27 Aug 2018 21:30:42 +0200 Subject: [PATCH 0231/1762] bpf: fix build error with clang Building the newly introduced BPF_PROG_TYPE_SK_REUSEPORT leads to a compile time error when building with clang: net/core/filter.o: In function `sk_reuseport_convert_ctx_access': ../net/core/filter.c:7284: undefined reference to `__compiletime_assert_7284' It seems that clang has issues resolving hweight_long at compile time. Since SK_FL_PROTO_MASK is a constant, we can use the interface for known constant arguments which works fine with clang. Fixes: 2dbb9b9e6df6 ("bpf: Introduce BPF_PROG_TYPE_SK_REUSEPORT") Signed-off-by: Stefan Agner Signed-off-by: Alexei Starovoitov --- net/core/filter.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/filter.c b/net/core/filter.c index c25eb36f1320..7a2430945c71 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -7281,7 +7281,7 @@ static u32 sk_reuseport_convert_ctx_access(enum bpf_access_type type, break; case offsetof(struct sk_reuseport_md, ip_protocol): - BUILD_BUG_ON(hweight_long(SK_FL_PROTO_MASK) != BITS_PER_BYTE); + BUILD_BUG_ON(HWEIGHT32(SK_FL_PROTO_MASK) != BITS_PER_BYTE); SK_REUSEPORT_LOAD_SK_FIELD_SIZE_OFF(__sk_flags_offset, BPF_W, 0); *insn++ = BPF_ALU32_IMM(BPF_AND, si->dst_reg, SK_FL_PROTO_MASK); From f1ed3df20d2d223e0852cc4ac1f19bba869a7e3c Mon Sep 17 00:00:00 2001 From: Michal Wnukowski Date: Wed, 15 Aug 2018 15:51:57 -0700 Subject: [PATCH 0232/1762] nvme-pci: add a memory barrier to nvme_dbbuf_update_and_check_event In many architectures loads may be reordered with older stores to different locations. In the nvme driver the following two operations could be reordered: - Write shadow doorbell (dbbuf_db) into memory. - Read EventIdx (dbbuf_ei) from memory. This can result in a potential race condition between driver and VM host processing requests (if given virtual NVMe controller has a support for shadow doorbell). If that occurs, then the NVMe controller may decide to wait for MMIO doorbell from guest operating system, and guest driver may decide not to issue MMIO doorbell on any of subsequent commands. This issue is purely timing-dependent one, so there is no easy way to reproduce it. Currently the easiest known approach is to run "Oracle IO Numbers" (orion) that is shipped with Oracle DB: orion -run advanced -num_large 0 -size_small 8 -type rand -simulate \ concat -write 40 -duration 120 -matrix row -testname nvme_test Where nvme_test is a .lun file that contains a list of NVMe block devices to run test against. Limiting number of vCPUs assigned to given VM instance seems to increase chances for this bug to occur. On test environment with VM that got 4 NVMe drives and 1 vCPU assigned the virtual NVMe controller hang could be observed within 10-20 minutes. That correspond to about 400-500k IO operations processed (or about 100GB of IO read/writes). Orion tool was used as a validation and set to run in a loop for 36 hours (equivalent of pushing 550M IO operations). No issues were observed. That suggest that the patch fixes the issue. Fixes: f9f38e33389c ("nvme: improve performance for virtual NVMe devices") Signed-off-by: Michal Wnukowski Reviewed-by: Keith Busch Reviewed-by: Sagi Grimberg [hch: updated changelog and comment a bit] Signed-off-by: Christoph Hellwig --- drivers/nvme/host/pci.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 1b9951d2067e..d668682f91df 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -316,6 +316,14 @@ static bool nvme_dbbuf_update_and_check_event(u16 value, u32 *dbbuf_db, old_value = *dbbuf_db; *dbbuf_db = value; + /* + * Ensure that the doorbell is updated before reading the event + * index from memory. The controller needs to provide similar + * ordering to ensure the envent index is updated before reading + * the doorbell. + */ + mb(); + if (!nvme_dbbuf_need_event(*dbbuf_ei, value, old_value)) return false; } From afd299ca996929f4f98ac20da0044c0cdc124879 Mon Sep 17 00:00:00 2001 From: James Smart Date: Thu, 9 Aug 2018 16:00:14 -0700 Subject: [PATCH 0233/1762] nvme-fcloop: Fix dropped LS's to removed target port When a targetport is removed from the config, fcloop will avoid calling the LS done() routine thinking the targetport is gone. This leaves the initiator reset/reconnect hanging as it waits for a status on the Create_Association LS for the reconnect. Change the filter in the LS callback path. If tport null (set when failed validation before "sending to remote port"), be sure to call done. This was the main bug. But, continue the logic that only calls done if tport was set but there is no remoteport (e.g. case where remoteport has been removed, thus host doesn't expect a completion). Signed-off-by: James Smart Signed-off-by: Christoph Hellwig --- drivers/nvme/target/fcloop.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/nvme/target/fcloop.c b/drivers/nvme/target/fcloop.c index 34712def81b1..5251689a1d9a 100644 --- a/drivers/nvme/target/fcloop.c +++ b/drivers/nvme/target/fcloop.c @@ -311,7 +311,7 @@ fcloop_tgt_lsrqst_done_work(struct work_struct *work) struct fcloop_tport *tport = tls_req->tport; struct nvmefc_ls_req *lsreq = tls_req->lsreq; - if (tport->remoteport) + if (!tport || tport->remoteport) lsreq->done(lsreq, tls_req->status); } @@ -329,6 +329,7 @@ fcloop_ls_req(struct nvme_fc_local_port *localport, if (!rport->targetport) { tls_req->status = -ECONNREFUSED; + tls_req->tport = NULL; schedule_work(&tls_req->work); return ret; } From 04db0e5ec58167364a80fd33ddb4f3b67434eb85 Mon Sep 17 00:00:00 2001 From: Chaitanya Kulkarni Date: Wed, 15 Aug 2018 18:48:25 -0700 Subject: [PATCH 0234/1762] nvmet: free workqueue object if module init fails Signed-off-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig --- drivers/nvme/target/core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index ebf3e7a6c49e..b5ec96abd048 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -1210,7 +1210,7 @@ static int __init nvmet_init(void) error = nvmet_init_discovery(); if (error) - goto out; + goto out_free_work_queue; error = nvmet_init_configfs(); if (error) @@ -1219,6 +1219,8 @@ static int __init nvmet_init(void) out_exit_discovery: nvmet_exit_discovery(); +out_free_work_queue: + destroy_workqueue(buffered_io_wq); out: return error; } From 501ca81760c204ec59b73e4a00bee5971fc0f1b1 Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Fri, 24 Aug 2018 17:37:00 -0700 Subject: [PATCH 0235/1762] bpf: sockmap, decrement copied count correctly in redirect error case Currently, when a redirect occurs in sockmap and an error occurs in the redirect call we unwind the scatterlist once in the error path of bpf_tcp_sendmsg_do_redirect() and then again in sendmsg(). Then in the error path of sendmsg we decrement the copied count by the send size. However, its possible we partially sent data before the error was generated. This can happen if do_tcp_sendpages() partially sends the scatterlist before encountering a memory pressure error. If this happens we need to decrement the copied value (the value tracking how many bytes were actually sent to TCP stack) by the number of remaining bytes _not_ the entire send size. Otherwise we risk confusing userspace. Also we don't need two calls to free the scatterlist one is good enough. So remove the one in bpf_tcp_sendmsg_do_redirect() and then properly reduce copied by the number of remaining bytes which may in fact be the entire send size if no bytes were sent. To do this use bool to indicate if free_start_sg() should do mem accounting or not. Signed-off-by: John Fastabend Signed-off-by: Daniel Borkmann --- kernel/bpf/sockmap.c | 45 ++++++++++++++++++++++---------------------- 1 file changed, 22 insertions(+), 23 deletions(-) diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c index 26d8a3053407..ce63e5801746 100644 --- a/kernel/bpf/sockmap.c +++ b/kernel/bpf/sockmap.c @@ -236,7 +236,7 @@ static int bpf_tcp_init(struct sock *sk) } static void smap_release_sock(struct smap_psock *psock, struct sock *sock); -static int free_start_sg(struct sock *sk, struct sk_msg_buff *md); +static int free_start_sg(struct sock *sk, struct sk_msg_buff *md, bool charge); static void bpf_tcp_release(struct sock *sk) { @@ -248,7 +248,7 @@ static void bpf_tcp_release(struct sock *sk) goto out; if (psock->cork) { - free_start_sg(psock->sock, psock->cork); + free_start_sg(psock->sock, psock->cork, true); kfree(psock->cork); psock->cork = NULL; } @@ -330,14 +330,14 @@ static void bpf_tcp_close(struct sock *sk, long timeout) close_fun = psock->save_close; if (psock->cork) { - free_start_sg(psock->sock, psock->cork); + free_start_sg(psock->sock, psock->cork, true); kfree(psock->cork); psock->cork = NULL; } list_for_each_entry_safe(md, mtmp, &psock->ingress, list) { list_del(&md->list); - free_start_sg(psock->sock, md); + free_start_sg(psock->sock, md, true); kfree(md); } @@ -570,14 +570,16 @@ static void free_bytes_sg(struct sock *sk, int bytes, md->sg_start = i; } -static int free_sg(struct sock *sk, int start, struct sk_msg_buff *md) +static int free_sg(struct sock *sk, int start, + struct sk_msg_buff *md, bool charge) { struct scatterlist *sg = md->sg_data; int i = start, free = 0; while (sg[i].length) { free += sg[i].length; - sk_mem_uncharge(sk, sg[i].length); + if (charge) + sk_mem_uncharge(sk, sg[i].length); if (!md->skb) put_page(sg_page(&sg[i])); sg[i].length = 0; @@ -594,9 +596,9 @@ static int free_sg(struct sock *sk, int start, struct sk_msg_buff *md) return free; } -static int free_start_sg(struct sock *sk, struct sk_msg_buff *md) +static int free_start_sg(struct sock *sk, struct sk_msg_buff *md, bool charge) { - int free = free_sg(sk, md->sg_start, md); + int free = free_sg(sk, md->sg_start, md, charge); md->sg_start = md->sg_end; return free; @@ -604,7 +606,7 @@ static int free_start_sg(struct sock *sk, struct sk_msg_buff *md) static int free_curr_sg(struct sock *sk, struct sk_msg_buff *md) { - return free_sg(sk, md->sg_curr, md); + return free_sg(sk, md->sg_curr, md, true); } static int bpf_map_msg_verdict(int _rc, struct sk_msg_buff *md) @@ -718,7 +720,7 @@ static int bpf_tcp_ingress(struct sock *sk, int apply_bytes, list_add_tail(&r->list, &psock->ingress); sk->sk_data_ready(sk); } else { - free_start_sg(sk, r); + free_start_sg(sk, r, true); kfree(r); } @@ -752,14 +754,10 @@ static int bpf_tcp_sendmsg_do_redirect(struct sock *sk, int send, release_sock(sk); } smap_release_sock(psock, sk); - if (unlikely(err)) - goto out; - return 0; + return err; out_rcu: rcu_read_unlock(); -out: - free_bytes_sg(NULL, send, md, false); - return err; + return 0; } static inline void bpf_md_init(struct smap_psock *psock) @@ -822,7 +820,7 @@ more_data: case __SK_PASS: err = bpf_tcp_push(sk, send, m, flags, true); if (unlikely(err)) { - *copied -= free_start_sg(sk, m); + *copied -= free_start_sg(sk, m, true); break; } @@ -845,16 +843,17 @@ more_data: lock_sock(sk); if (unlikely(err < 0)) { - free_start_sg(sk, m); + int free = free_start_sg(sk, m, false); + psock->sg_size = 0; if (!cork) - *copied -= send; + *copied -= free; } else { psock->sg_size -= send; } if (cork) { - free_start_sg(sk, m); + free_start_sg(sk, m, true); psock->sg_size = 0; kfree(m); m = NULL; @@ -1121,7 +1120,7 @@ wait_for_memory: err = sk_stream_wait_memory(sk, &timeo); if (err) { if (m && m != psock->cork) - free_start_sg(sk, m); + free_start_sg(sk, m, true); goto out_err; } } @@ -1580,13 +1579,13 @@ static void smap_gc_work(struct work_struct *w) bpf_prog_put(psock->bpf_tx_msg); if (psock->cork) { - free_start_sg(psock->sock, psock->cork); + free_start_sg(psock->sock, psock->cork, true); kfree(psock->cork); } list_for_each_entry_safe(md, mtmp, &psock->ingress, list) { list_del(&md->list); - free_start_sg(psock->sock, md); + free_start_sg(psock->sock, md, true); kfree(md); } From 67d1ba8a6dc83d90cd58b89fa6cbf9ae35a0cf7f Mon Sep 17 00:00:00 2001 From: Danek Duvall Date: Wed, 22 Aug 2018 16:01:04 -0700 Subject: [PATCH 0236/1762] mac80211: correct use of IEEE80211_VHT_CAP_RXSTBC_X The mod mask for VHT capabilities intends to say that you can override the number of STBC receive streams, and it does, but only by accident. The IEEE80211_VHT_CAP_RXSTBC_X aren't bits to be set, but values (albeit left-shifted). ORing the bits together gets the right answer, but we should use the _MASK macro here instead. Signed-off-by: Danek Duvall Signed-off-by: Johannes Berg --- net/mac80211/main.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 0358f20b675f..27cd64acaf00 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -470,10 +470,7 @@ static const struct ieee80211_vht_cap mac80211_vht_capa_mod_mask = { cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC | IEEE80211_VHT_CAP_SHORT_GI_80 | IEEE80211_VHT_CAP_SHORT_GI_160 | - IEEE80211_VHT_CAP_RXSTBC_1 | - IEEE80211_VHT_CAP_RXSTBC_2 | - IEEE80211_VHT_CAP_RXSTBC_3 | - IEEE80211_VHT_CAP_RXSTBC_4 | + IEEE80211_VHT_CAP_RXSTBC_MASK | IEEE80211_VHT_CAP_TXSTBC | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | From d7c863a2f65e48f442379f4ee1846d52e0c5d24d Mon Sep 17 00:00:00 2001 From: Danek Duvall Date: Wed, 22 Aug 2018 16:01:05 -0700 Subject: [PATCH 0237/1762] mac80211_hwsim: correct use of IEEE80211_VHT_CAP_RXSTBC_X The mac80211_hwsim driver intends to say that it supports up to four STBC receive streams, but instead it ends up saying something undefined. The IEEE80211_VHT_CAP_RXSTBC_X macros aren't independent bits that can be ORed together, but values. In this case, _4 is the appropriate one to use. Signed-off-by: Danek Duvall Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index fe1b0108f06d..7d0b460868f9 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -2699,9 +2699,6 @@ static int mac80211_hwsim_new_radio(struct genl_info *info, IEEE80211_VHT_CAP_SHORT_GI_80 | IEEE80211_VHT_CAP_SHORT_GI_160 | IEEE80211_VHT_CAP_TXSTBC | - IEEE80211_VHT_CAP_RXSTBC_1 | - IEEE80211_VHT_CAP_RXSTBC_2 | - IEEE80211_VHT_CAP_RXSTBC_3 | IEEE80211_VHT_CAP_RXSTBC_4 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; sband->vht_cap.vht_mcs.rx_mcs_map = From 38cb87ee47fb825f6c9d645c019f75b3905c0ab2 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Wed, 22 Aug 2018 13:52:21 +0200 Subject: [PATCH 0238/1762] cfg80211: make wmm_rule part of the reg_rule structure Make wmm_rule be part of the reg_rule structure. This simplifies the code a lot at the cost of having bigger memory usage. However in most cases we have only few reg_rule's and when we do have many like in iwlwifi we do not save memory as it allocates a separate wmm_rule for each channel anyway. This also fixes a bug reported in various places where somewhere the pointers were corrupted and we ended up doing a null-dereference. Fixes: 230ebaa189af ("cfg80211: read wmm rules from regulatory database") Signed-off-by: Stanislaw Gruszka [rephrase commit message slightly] Signed-off-by: Johannes Berg --- .../wireless/intel/iwlwifi/iwl-nvm-parse.c | 50 ++--------- include/net/cfg80211.h | 4 +- include/net/regulatory.h | 4 +- net/mac80211/util.c | 8 +- net/wireless/nl80211.c | 10 +-- net/wireless/reg.c | 90 +++---------------- 6 files changed, 31 insertions(+), 135 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c index b815ba38dbdb..88121548eb9f 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c @@ -877,15 +877,12 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg, const u8 *nvm_chan = cfg->nvm_type == IWL_NVM_EXT ? iwl_ext_nvm_channels : iwl_nvm_channels; struct ieee80211_regdomain *regd, *copy_rd; - int size_of_regd, regd_to_copy, wmms_to_copy; - int size_of_wmms = 0; + int size_of_regd, regd_to_copy; struct ieee80211_reg_rule *rule; - struct ieee80211_wmm_rule *wmm_rule, *d_wmm, *s_wmm; struct regdb_ptrs *regdb_ptrs; enum nl80211_band band; int center_freq, prev_center_freq = 0; - int valid_rules = 0, n_wmms = 0; - int i; + int valid_rules = 0; bool new_rule; int max_num_ch = cfg->nvm_type == IWL_NVM_EXT ? IWL_NVM_NUM_CHANNELS_EXT : IWL_NVM_NUM_CHANNELS; @@ -904,11 +901,7 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg, sizeof(struct ieee80211_regdomain) + num_of_ch * sizeof(struct ieee80211_reg_rule); - if (geo_info & GEO_WMM_ETSI_5GHZ_INFO) - size_of_wmms = - num_of_ch * sizeof(struct ieee80211_wmm_rule); - - regd = kzalloc(size_of_regd + size_of_wmms, GFP_KERNEL); + regd = kzalloc(size_of_regd, GFP_KERNEL); if (!regd) return ERR_PTR(-ENOMEM); @@ -922,8 +915,6 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg, regd->alpha2[0] = fw_mcc >> 8; regd->alpha2[1] = fw_mcc & 0xff; - wmm_rule = (struct ieee80211_wmm_rule *)((u8 *)regd + size_of_regd); - for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) { ch_flags = (u16)__le32_to_cpup(channels + ch_idx); band = (ch_idx < NUM_2GHZ_CHANNELS) ? @@ -977,26 +968,10 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg, band == NL80211_BAND_2GHZ) continue; - if (!reg_query_regdb_wmm(regd->alpha2, center_freq, - ®db_ptrs[n_wmms].token, wmm_rule)) { - /* Add only new rules */ - for (i = 0; i < n_wmms; i++) { - if (regdb_ptrs[i].token == - regdb_ptrs[n_wmms].token) { - rule->wmm_rule = regdb_ptrs[i].rule; - break; - } - } - if (i == n_wmms) { - rule->wmm_rule = wmm_rule; - regdb_ptrs[n_wmms++].rule = wmm_rule; - wmm_rule++; - } - } + reg_query_regdb_wmm(regd->alpha2, center_freq, rule); } regd->n_reg_rules = valid_rules; - regd->n_wmm_rules = n_wmms; /* * Narrow down regdom for unused regulatory rules to prevent hole @@ -1005,28 +980,13 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg, regd_to_copy = sizeof(struct ieee80211_regdomain) + valid_rules * sizeof(struct ieee80211_reg_rule); - wmms_to_copy = sizeof(struct ieee80211_wmm_rule) * n_wmms; - - copy_rd = kzalloc(regd_to_copy + wmms_to_copy, GFP_KERNEL); + copy_rd = kzalloc(regd_to_copy, GFP_KERNEL); if (!copy_rd) { copy_rd = ERR_PTR(-ENOMEM); goto out; } memcpy(copy_rd, regd, regd_to_copy); - memcpy((u8 *)copy_rd + regd_to_copy, (u8 *)regd + size_of_regd, - wmms_to_copy); - - d_wmm = (struct ieee80211_wmm_rule *)((u8 *)copy_rd + regd_to_copy); - s_wmm = (struct ieee80211_wmm_rule *)((u8 *)regd + size_of_regd); - - for (i = 0; i < regd->n_reg_rules; i++) { - if (!regd->reg_rules[i].wmm_rule) - continue; - - copy_rd->reg_rules[i].wmm_rule = d_wmm + - (regd->reg_rules[i].wmm_rule - s_wmm); - } out: kfree(regdb_ptrs); diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 1beb3ead0385..7229c186d199 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -4763,8 +4763,8 @@ const char *reg_initiator_name(enum nl80211_reg_initiator initiator); * * Return: 0 on success. -ENODATA. */ -int reg_query_regdb_wmm(char *alpha2, int freq, u32 *ptr, - struct ieee80211_wmm_rule *rule); +int reg_query_regdb_wmm(char *alpha2, int freq, + struct ieee80211_reg_rule *rule); /* * callbacks for asynchronous cfg80211 methods, notification diff --git a/include/net/regulatory.h b/include/net/regulatory.h index 60f8cc86a447..3469750df0f4 100644 --- a/include/net/regulatory.h +++ b/include/net/regulatory.h @@ -217,15 +217,15 @@ struct ieee80211_wmm_rule { struct ieee80211_reg_rule { struct ieee80211_freq_range freq_range; struct ieee80211_power_rule power_rule; - struct ieee80211_wmm_rule *wmm_rule; + struct ieee80211_wmm_rule wmm_rule; u32 flags; u32 dfs_cac_ms; + bool has_wmm; }; struct ieee80211_regdomain { struct rcu_head rcu_head; u32 n_reg_rules; - u32 n_wmm_rules; char alpha2[3]; enum nl80211_dfs_regions dfs_region; struct ieee80211_reg_rule reg_rules[]; diff --git a/net/mac80211/util.c b/net/mac80211/util.c index d02fbfec3783..c80187d6e6bb 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1120,7 +1120,7 @@ void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, { struct ieee80211_chanctx_conf *chanctx_conf; const struct ieee80211_reg_rule *rrule; - struct ieee80211_wmm_ac *wmm_ac; + const struct ieee80211_wmm_ac *wmm_ac; u16 center_freq = 0; if (sdata->vif.type != NL80211_IFTYPE_AP && @@ -1139,15 +1139,15 @@ void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, rrule = freq_reg_info(sdata->wdev.wiphy, MHZ_TO_KHZ(center_freq)); - if (IS_ERR_OR_NULL(rrule) || !rrule->wmm_rule) { + if (IS_ERR_OR_NULL(rrule) || !rrule->has_wmm) { rcu_read_unlock(); return; } if (sdata->vif.type == NL80211_IFTYPE_AP) - wmm_ac = &rrule->wmm_rule->ap[ac]; + wmm_ac = &rrule->wmm_rule.ap[ac]; else - wmm_ac = &rrule->wmm_rule->client[ac]; + wmm_ac = &rrule->wmm_rule.client[ac]; qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min); qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max); qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn); diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 80bc986c79e5..e3dcffd96919 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -667,13 +667,13 @@ static int nl80211_msg_put_wmm_rules(struct sk_buff *msg, goto nla_put_failure; if (nla_put_u16(msg, NL80211_WMMR_CW_MIN, - rule->wmm_rule->client[j].cw_min) || + rule->wmm_rule.client[j].cw_min) || nla_put_u16(msg, NL80211_WMMR_CW_MAX, - rule->wmm_rule->client[j].cw_max) || + rule->wmm_rule.client[j].cw_max) || nla_put_u8(msg, NL80211_WMMR_AIFSN, - rule->wmm_rule->client[j].aifsn) || + rule->wmm_rule.client[j].aifsn) || nla_put_u8(msg, NL80211_WMMR_TXOP, - rule->wmm_rule->client[j].cot)) + rule->wmm_rule.client[j].cot)) goto nla_put_failure; nla_nest_end(msg, nl_wmm_rule); @@ -766,7 +766,7 @@ static int nl80211_msg_put_channel(struct sk_buff *msg, struct wiphy *wiphy, const struct ieee80211_reg_rule *rule = freq_reg_info(wiphy, chan->center_freq); - if (!IS_ERR(rule) && rule->wmm_rule) { + if (!IS_ERR_OR_NULL(rule) && rule->has_wmm) { if (nl80211_msg_put_wmm_rules(msg, rule)) goto nla_put_failure; } diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 283902974fbf..2f702adf2912 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -425,35 +425,23 @@ static const struct ieee80211_regdomain * reg_copy_regd(const struct ieee80211_regdomain *src_regd) { struct ieee80211_regdomain *regd; - int size_of_regd, size_of_wmms; + int size_of_regd; unsigned int i; - struct ieee80211_wmm_rule *d_wmm, *s_wmm; size_of_regd = sizeof(struct ieee80211_regdomain) + src_regd->n_reg_rules * sizeof(struct ieee80211_reg_rule); - size_of_wmms = src_regd->n_wmm_rules * - sizeof(struct ieee80211_wmm_rule); - regd = kzalloc(size_of_regd + size_of_wmms, GFP_KERNEL); + regd = kzalloc(size_of_regd, GFP_KERNEL); if (!regd) return ERR_PTR(-ENOMEM); memcpy(regd, src_regd, sizeof(struct ieee80211_regdomain)); - d_wmm = (struct ieee80211_wmm_rule *)((u8 *)regd + size_of_regd); - s_wmm = (struct ieee80211_wmm_rule *)((u8 *)src_regd + size_of_regd); - memcpy(d_wmm, s_wmm, size_of_wmms); - - for (i = 0; i < src_regd->n_reg_rules; i++) { + for (i = 0; i < src_regd->n_reg_rules; i++) memcpy(®d->reg_rules[i], &src_regd->reg_rules[i], sizeof(struct ieee80211_reg_rule)); - if (!src_regd->reg_rules[i].wmm_rule) - continue; - regd->reg_rules[i].wmm_rule = d_wmm + - (src_regd->reg_rules[i].wmm_rule - s_wmm); - } return regd; } @@ -859,9 +847,10 @@ static bool valid_regdb(const u8 *data, unsigned int size) return true; } -static void set_wmm_rule(struct ieee80211_wmm_rule *rule, +static void set_wmm_rule(struct ieee80211_reg_rule *rrule, struct fwdb_wmm_rule *wmm) { + struct ieee80211_wmm_rule *rule = &rrule->wmm_rule; unsigned int i; for (i = 0; i < IEEE80211_NUM_ACS; i++) { @@ -875,11 +864,13 @@ static void set_wmm_rule(struct ieee80211_wmm_rule *rule, rule->ap[i].aifsn = wmm->ap[i].aifsn; rule->ap[i].cot = 1000 * be16_to_cpu(wmm->ap[i].cot); } + + rrule->has_wmm = true; } static int __regdb_query_wmm(const struct fwdb_header *db, const struct fwdb_country *country, int freq, - u32 *dbptr, struct ieee80211_wmm_rule *rule) + struct ieee80211_reg_rule *rule) { unsigned int ptr = be16_to_cpu(country->coll_ptr) << 2; struct fwdb_collection *coll = (void *)((u8 *)db + ptr); @@ -900,8 +891,6 @@ static int __regdb_query_wmm(const struct fwdb_header *db, wmm_ptr = be16_to_cpu(rrule->wmm_ptr) << 2; wmm = (void *)((u8 *)db + wmm_ptr); set_wmm_rule(rule, wmm); - if (dbptr) - *dbptr = wmm_ptr; return 0; } } @@ -909,8 +898,7 @@ static int __regdb_query_wmm(const struct fwdb_header *db, return -ENODATA; } -int reg_query_regdb_wmm(char *alpha2, int freq, u32 *dbptr, - struct ieee80211_wmm_rule *rule) +int reg_query_regdb_wmm(char *alpha2, int freq, struct ieee80211_reg_rule *rule) { const struct fwdb_header *hdr = regdb; const struct fwdb_country *country; @@ -924,8 +912,7 @@ int reg_query_regdb_wmm(char *alpha2, int freq, u32 *dbptr, country = &hdr->country[0]; while (country->coll_ptr) { if (alpha2_equal(alpha2, country->alpha2)) - return __regdb_query_wmm(regdb, country, freq, dbptr, - rule); + return __regdb_query_wmm(regdb, country, freq, rule); country++; } @@ -934,32 +921,13 @@ int reg_query_regdb_wmm(char *alpha2, int freq, u32 *dbptr, } EXPORT_SYMBOL(reg_query_regdb_wmm); -struct wmm_ptrs { - struct ieee80211_wmm_rule *rule; - u32 ptr; -}; - -static struct ieee80211_wmm_rule *find_wmm_ptr(struct wmm_ptrs *wmm_ptrs, - u32 wmm_ptr, int n_wmms) -{ - int i; - - for (i = 0; i < n_wmms; i++) { - if (wmm_ptrs[i].ptr == wmm_ptr) - return wmm_ptrs[i].rule; - } - return NULL; -} - static int regdb_query_country(const struct fwdb_header *db, const struct fwdb_country *country) { unsigned int ptr = be16_to_cpu(country->coll_ptr) << 2; struct fwdb_collection *coll = (void *)((u8 *)db + ptr); struct ieee80211_regdomain *regdom; - struct ieee80211_regdomain *tmp_rd; - unsigned int size_of_regd, i, n_wmms = 0; - struct wmm_ptrs *wmm_ptrs; + unsigned int size_of_regd, i; size_of_regd = sizeof(struct ieee80211_regdomain) + coll->n_rules * sizeof(struct ieee80211_reg_rule); @@ -968,12 +936,6 @@ static int regdb_query_country(const struct fwdb_header *db, if (!regdom) return -ENOMEM; - wmm_ptrs = kcalloc(coll->n_rules, sizeof(*wmm_ptrs), GFP_KERNEL); - if (!wmm_ptrs) { - kfree(regdom); - return -ENOMEM; - } - regdom->n_reg_rules = coll->n_rules; regdom->alpha2[0] = country->alpha2[0]; regdom->alpha2[1] = country->alpha2[1]; @@ -1012,37 +974,11 @@ static int regdb_query_country(const struct fwdb_header *db, 1000 * be16_to_cpu(rule->cac_timeout); if (rule->len >= offsetofend(struct fwdb_rule, wmm_ptr)) { u32 wmm_ptr = be16_to_cpu(rule->wmm_ptr) << 2; - struct ieee80211_wmm_rule *wmm_pos = - find_wmm_ptr(wmm_ptrs, wmm_ptr, n_wmms); - struct fwdb_wmm_rule *wmm; - struct ieee80211_wmm_rule *wmm_rule; + struct fwdb_wmm_rule *wmm = (void *)((u8 *)db + wmm_ptr); - if (wmm_pos) { - rrule->wmm_rule = wmm_pos; - continue; - } - wmm = (void *)((u8 *)db + wmm_ptr); - tmp_rd = krealloc(regdom, size_of_regd + (n_wmms + 1) * - sizeof(struct ieee80211_wmm_rule), - GFP_KERNEL); - - if (!tmp_rd) { - kfree(regdom); - kfree(wmm_ptrs); - return -ENOMEM; - } - regdom = tmp_rd; - - wmm_rule = (struct ieee80211_wmm_rule *) - ((u8 *)regdom + size_of_regd + n_wmms * - sizeof(struct ieee80211_wmm_rule)); - - set_wmm_rule(wmm_rule, wmm); - wmm_ptrs[n_wmms].ptr = wmm_ptr; - wmm_ptrs[n_wmms++].rule = wmm_rule; + set_wmm_rule(rrule, wmm); } } - kfree(wmm_ptrs); return reg_schedule_apply(regdom); } From 20932750d9c78d307e4f2f18f9c6a32b82b1e0e8 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Mon, 20 Aug 2018 13:56:07 +0300 Subject: [PATCH 0239/1762] mac80211: don't update the PM state of a peer upon a multicast frame I changed the way mac80211 updates the PM state of the peer. I forgot that we could also have multicast frames from the peer and that those frame should of course not change the PM state of the peer: A peer goes to power save when it needs to scan, but it won't send the broadcast Probe Request with the PM bit set. This made us mark the peer as awake when it wasn't and then Intel's firmware would fail to transmit because the peer is asleep according to its database. The driver warned about this and it looked like this: WARNING: CPU: 0 PID: 184 at /usr/src/linux-4.16.14/drivers/net/wireless/intel/iwlwifi/mvm/tx.c:1369 iwl_mvm_rx_tx_cmd+0x53b/0x860 CPU: 0 PID: 184 Comm: irq/124-iwlwifi Not tainted 4.16.14 #1 RIP: 0010:iwl_mvm_rx_tx_cmd+0x53b/0x860 Call Trace: iwl_pcie_rx_handle+0x220/0x880 iwl_pcie_irq_handler+0x6c9/0xa20 ? irq_forced_thread_fn+0x60/0x60 ? irq_thread_dtor+0x90/0x90 The relevant code that spits the WARNING is: case TX_STATUS_FAIL_DEST_PS: /* the FW should have stopped the queue and not * return this status */ WARN_ON(1); info->flags |= IEEE80211_TX_STAT_TX_FILTERED; This fixes https://bugzilla.kernel.org/show_bug.cgi?id=199967. Fixes: 9fef65443388 ("mac80211: always update the PM state of a peer on MGMT / DATA frames") Cc: #4.16+ Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg --- net/mac80211/rx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 932985ca4e66..3f80a5ca4050 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1612,6 +1612,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) */ if (!ieee80211_hw_check(&sta->local->hw, AP_LINK_PS) && !ieee80211_has_morefrags(hdr->frame_control) && + !is_multicast_ether_addr(hdr->addr1) && (ieee80211_is_mgmt(hdr->frame_control) || ieee80211_is_data(hdr->frame_control)) && !(status->rx_flags & IEEE80211_RX_DEFERRED_RELEASE) && From 3a2af7cccbbaf2362db9053a946a6084e12bfa73 Mon Sep 17 00:00:00 2001 From: Jinbum Park Date: Tue, 31 Jul 2018 23:10:40 +0900 Subject: [PATCH 0240/1762] mac80211_hwsim: Fix possible Spectre-v1 for hwsim_world_regdom_custom User controls @idx which to be used as index of hwsim_world_regdom_custom. So, It can be exploited via Spectre-like attack. (speculative execution) This kind of attack leaks address of hwsim_world_regdom_custom, It leads an attacker to bypass security mechanism such as KASLR. So sanitize @idx before using it to prevent attack. I leveraged strategy [1] to find and exploit this gadget. [1] https://github.com/jinb-park/linux-exploit/tree/master/exploit-remaining-spectre-gadget/ Signed-off-by: Jinbum Park [johannes: unwrap URL] Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 7d0b460868f9..80e2c8595c7c 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -33,6 +33,7 @@ #include #include #include +#include #include "mac80211_hwsim.h" #define WARN_QUEUE 100 @@ -3229,6 +3230,9 @@ static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info) kfree(hwname); return -EINVAL; } + + idx = array_index_nospec(idx, + ARRAY_SIZE(hwsim_world_regdom_custom)); param.regd = hwsim_world_regdom_custom[idx]; } From d3c89bbc7491d5e288ca2993e999d24ba9ff52ad Mon Sep 17 00:00:00 2001 From: Haim Dreyfuss Date: Tue, 21 Aug 2018 09:22:19 +0300 Subject: [PATCH 0241/1762] nl80211: Fix nla_put_u8 to u16 for NL80211_WMMR_TXOP TXOP (also known as Channel Occupancy Time) is u16 and should be added using nla_put_u16 instead of u8, fix that. Fixes: 50f32718e125 ("nl80211: Add wmm rule attribute to NL80211_CMD_GET_WIPHY dump command") Signed-off-by: Haim Dreyfuss Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- net/wireless/nl80211.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index e3dcffd96919..3f7ffbe6c634 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -672,8 +672,8 @@ static int nl80211_msg_put_wmm_rules(struct sk_buff *msg, rule->wmm_rule.client[j].cw_max) || nla_put_u8(msg, NL80211_WMMR_AIFSN, rule->wmm_rule.client[j].aifsn) || - nla_put_u8(msg, NL80211_WMMR_TXOP, - rule->wmm_rule.client[j].cot)) + nla_put_u16(msg, NL80211_WMMR_TXOP, + rule->wmm_rule.client[j].cot)) goto nla_put_failure; nla_nest_end(msg, nl_wmm_rule); From b88d26d97c41680f7327e5fb8061ad0037877f40 Mon Sep 17 00:00:00 2001 From: Haim Dreyfuss Date: Tue, 21 Aug 2018 09:22:20 +0300 Subject: [PATCH 0242/1762] nl80211: Pass center frequency in kHz instead of MHz freq_reg_info expects to get the frequency in kHz. Instead we accidently pass it in MHz. Thus, currently the function always return ERR rule. Fix that. Fixes: 50f32718e125 ("nl80211: Add wmm rule attribute to NL80211_CMD_GET_WIPHY dump command") Signed-off-by: Haim Dreyfuss Signed-off-by: Luca Coelho [fix kHz/MHz in commit message] Signed-off-by: Johannes Berg --- net/wireless/nl80211.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 3f7ffbe6c634..ce0149a86c13 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -764,7 +764,7 @@ static int nl80211_msg_put_channel(struct sk_buff *msg, struct wiphy *wiphy, if (large) { const struct ieee80211_reg_rule *rule = - freq_reg_info(wiphy, chan->center_freq); + freq_reg_info(wiphy, MHZ_TO_KHZ(chan->center_freq)); if (!IS_ERR_OR_NULL(rule) && rule->has_wmm) { if (nl80211_msg_put_wmm_rules(msg, rule)) From e0ab8b26aa9661df0541a657e2b2416d90488809 Mon Sep 17 00:00:00 2001 From: Andreas Bosch Date: Fri, 17 Aug 2018 22:16:00 +0200 Subject: [PATCH 0243/1762] HID: intel-ish-hid: Enable Sunrise Point-H ish driver Added PCI ID for Sunrise Point-H ISH. Signed-off-by: Andreas Bosch Acked-by: Srinivas Pandruvada Signed-off-by: Jiri Kosina --- drivers/hid/intel-ish-hid/ipc/hw-ish.h | 1 + drivers/hid/intel-ish-hid/ipc/pci-ish.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/hid/intel-ish-hid/ipc/hw-ish.h b/drivers/hid/intel-ish-hid/ipc/hw-ish.h index 97869b7410eb..da133716bed0 100644 --- a/drivers/hid/intel-ish-hid/ipc/hw-ish.h +++ b/drivers/hid/intel-ish-hid/ipc/hw-ish.h @@ -29,6 +29,7 @@ #define CNL_Ax_DEVICE_ID 0x9DFC #define GLK_Ax_DEVICE_ID 0x31A2 #define CNL_H_DEVICE_ID 0xA37C +#define SPT_H_DEVICE_ID 0xA135 #define REVISION_ID_CHT_A0 0x6 #define REVISION_ID_CHT_Ax_SI 0x0 diff --git a/drivers/hid/intel-ish-hid/ipc/pci-ish.c b/drivers/hid/intel-ish-hid/ipc/pci-ish.c index 050f9872f5c0..a1125a5c7965 100644 --- a/drivers/hid/intel-ish-hid/ipc/pci-ish.c +++ b/drivers/hid/intel-ish-hid/ipc/pci-ish.c @@ -38,6 +38,7 @@ static const struct pci_device_id ish_pci_tbl[] = { {PCI_DEVICE(PCI_VENDOR_ID_INTEL, CNL_Ax_DEVICE_ID)}, {PCI_DEVICE(PCI_VENDOR_ID_INTEL, GLK_Ax_DEVICE_ID)}, {PCI_DEVICE(PCI_VENDOR_ID_INTEL, CNL_H_DEVICE_ID)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, SPT_H_DEVICE_ID)}, {0, } }; MODULE_DEVICE_TABLE(pci, ish_pci_tbl); From fb6acf76c3fdd97fea6995e64e2c665725f00fc5 Mon Sep 17 00:00:00 2001 From: AceLan Kao Date: Tue, 21 Aug 2018 16:55:13 +0800 Subject: [PATCH 0244/1762] HID: i2c-hid: Fix flooded incomplete report after S3 on Rayd touchscreen The incomplete report flooded after S3 and touchscreen becomes malfunctioned. [ 1367.646244] i2c_hid i2c-CUST0000:00: i2c_hid_get_input: incomplete report (58/18785) [ 1367.649471] i2c_hid i2c-CUST0000:00: i2c_hid_get_input: incomplete report (58/28743) [ 1367.651092] i2c_hid i2c-CUST0000:00: i2c_hid_get_input: incomplete report (58/26757) [ 1367.652658] i2c_hid i2c-CUST0000:00: i2c_hid_get_input: incomplete report (58/52280) [ 1367.654287] i2c_hid i2c-CUST0000:00: i2c_hid_get_input: incomplete report (58/56059) Adding device ID, 04F3:30CC, to the quirk to re-send report description after resume. Cc: stable@vger.kernel.org Signed-off-by: AceLan Kao Reviewed-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-ids.h | 1 + drivers/hid/i2c-hid/i2c-hid.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 79bdf0c7e351..34367df61b28 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -530,6 +530,7 @@ #define I2C_VENDOR_ID_RAYD 0x2386 #define I2C_PRODUCT_ID_RAYD_3118 0x3118 +#define I2C_PRODUCT_ID_RAYD_4B33 0x4B33 #define USB_VENDOR_ID_HANWANG 0x0b57 #define USB_DEVICE_ID_HANWANG_TABLET_FIRST 0x5000 diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index 2ce194a84868..57126f6837bb 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -174,6 +174,8 @@ static const struct i2c_hid_quirks { I2C_HID_QUIRK_RESEND_REPORT_DESCR }, { USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS10FB_TOUCH, I2C_HID_QUIRK_RESEND_REPORT_DESCR }, + { I2C_VENDOR_ID_RAYD, I2C_PRODUCT_ID_RAYD_4B33, + I2C_HID_QUIRK_RESEND_REPORT_DESCR }, { 0, 0 } }; From ee345492437043a79db058a3d4f029ebcb52089a Mon Sep 17 00:00:00 2001 From: Sean O'Brien Date: Mon, 27 Aug 2018 13:02:15 -0700 Subject: [PATCH 0245/1762] HID: add support for Apple Magic Keyboards USB device Vendor 05ac (Apple) Device 026c (Magic Keyboard with Numeric Keypad) Bluetooth devices Vendor 004c (Apple) Device 0267 (Magic Keyboard) Device 026c (Magic Keyboard with Numeric Keypad) Support already exists for the Magic Keyboard over USB connection. Add support for the Magic Keyboard over Bluetooth connection, and for the Magic Keyboard with Numeric Keypad over Bluetooth and USB connection. Signed-off-by: Sean O'Brien Reviewed-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-apple.c | 9 ++++++++- drivers/hid/hid-ids.h | 2 ++ 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c index 25b7bd56ae11..1cb41992aaa1 100644 --- a/drivers/hid/hid-apple.c +++ b/drivers/hid/hid-apple.c @@ -335,7 +335,8 @@ static int apple_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) { - if (usage->hid == (HID_UP_CUSTOM | 0x0003)) { + if (usage->hid == (HID_UP_CUSTOM | 0x0003) || + usage->hid == (HID_UP_MSVENDOR | 0x0003)) { /* The fn key on Apple USB keyboards */ set_bit(EV_REP, hi->input->evbit); hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_FN); @@ -472,6 +473,12 @@ static const struct hid_device_id apple_devices[] = { .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI), .driver_data = APPLE_HAS_FN }, + { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI), + .driver_data = APPLE_HAS_FN }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_ANSI), + .driver_data = APPLE_HAS_FN }, + { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_ANSI), + .driver_data = APPLE_HAS_FN }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI), .driver_data = APPLE_HAS_FN }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO), diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 34367df61b28..cb2d3170d9dc 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -88,6 +88,7 @@ #define USB_DEVICE_ID_ANTON_TOUCH_PAD 0x3101 #define USB_VENDOR_ID_APPLE 0x05ac +#define BT_VENDOR_ID_APPLE 0x004c #define USB_DEVICE_ID_APPLE_MIGHTYMOUSE 0x0304 #define USB_DEVICE_ID_APPLE_MAGICMOUSE 0x030d #define USB_DEVICE_ID_APPLE_MAGICTRACKPAD 0x030e @@ -157,6 +158,7 @@ #define USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO 0x0256 #define USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS 0x0257 #define USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI 0x0267 +#define USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_ANSI 0x026c #define USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI 0x0290 #define USB_DEVICE_ID_APPLE_WELLSPRING8_ISO 0x0291 #define USB_DEVICE_ID_APPLE_WELLSPRING8_JIS 0x0292 From e38c0ac55ee67cf3626cfbc2283f8873dc44d370 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Tue, 28 Aug 2018 13:29:55 +0200 Subject: [PATCH 0246/1762] HID: input: fix leaking custom input node name Make sure to free the custom input node name on disconnect. Cc: stable@vger.kernel.org # v4.18+ Fixes: c554bb045511 ("HID: input: append a suffix matching the application") Signed-off-by: Stefan Agner Signed-off-by: Jiri Kosina --- drivers/hid/hid-input.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index 4e94ea3e280a..ac201817a2dd 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -1815,6 +1815,7 @@ void hidinput_disconnect(struct hid_device *hid) input_unregister_device(hidinput->input); else input_free_device(hidinput->input); + kfree(hidinput->name); kfree(hidinput); } From b2dd9f2e5a8a4a6afa9d41411cdbfc2f5ceeba71 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Tue, 28 Aug 2018 13:29:54 +0200 Subject: [PATCH 0247/1762] HID: core: fix memory leak on probe The dynamically allocted collection stack does not get freed in all situations. Make sure to also free the collection stack when using the parser in hid_open_report(). Fixes: 08a8a7cf1459 ("HID: core: do not upper bound the collection stack") Signed-off-by: Stefan Agner Signed-off-by: Jiri Kosina --- drivers/hid/hid-core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 3da354af7a0a..44a465db3f96 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1039,6 +1039,7 @@ int hid_open_report(struct hid_device *device) hid_err(device, "unbalanced delimiter at end of report description\n"); goto err; } + kfree(parser->collection_stack); vfree(parser); device->status |= HID_STAT_PARSED; return 0; @@ -1047,6 +1048,7 @@ int hid_open_report(struct hid_device *device) hid_err(device, "item fetching failed at offset %d\n", (int)(end - start)); err: + kfree(parser->collection_stack); vfree(parser); hid_close_report(device); return ret; From f86cf25a609107960cf05263e491463feaae1f99 Mon Sep 17 00:00:00 2001 From: Gao Xiang Date: Tue, 28 Aug 2018 11:39:48 +0800 Subject: [PATCH 0248/1762] Revert "staging: erofs: disable compiling temporarile" This reverts commit 156c3df8d4db4e693c062978186f44079413d74d. Since XArray and the new mount apis aren't merged in 4.19-rc1 merge window, the BROKEN mark can be reverted directly without any problems. Fixes: 156c3df8d4db ("staging: erofs: disable compiling temporarile") Cc: Matthew Wilcox Cc: David Howells Reviewed-by: Chao Yu Signed-off-by: Gao Xiang Signed-off-by: Greg Kroah-Hartman --- drivers/staging/erofs/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/erofs/Kconfig b/drivers/staging/erofs/Kconfig index 96f614934df1..663b755bf2fb 100644 --- a/drivers/staging/erofs/Kconfig +++ b/drivers/staging/erofs/Kconfig @@ -2,7 +2,7 @@ config EROFS_FS tristate "EROFS filesystem support" - depends on BROKEN + depends on BLOCK help EROFS(Enhanced Read-Only File System) is a lightweight read-only file system with modern designs (eg. page-sized From 496f3347d834aec91c38b45d6249ed00f58ad233 Mon Sep 17 00:00:00 2001 From: Neeraj Dantu Date: Tue, 28 Aug 2018 16:37:58 +0000 Subject: [PATCH 0249/1762] ARM: dts: Fix file permission for am335x-osd3358-sm-red.dts Fix wrong mode for dts file added by commit bb3e3fbbac86 ("ARM: dts: Add DT support for Octavo Systems OSD3358-SM-RED based on TI AM335x"). Signed-off-by: Neeraj Dantu CC: Robert Nelson CC: Jason Kridner Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/am335x-osd3358-sm-red.dts | 0 1 file changed, 0 insertions(+), 0 deletions(-) mode change 100755 => 100644 arch/arm/boot/dts/am335x-osd3358-sm-red.dts diff --git a/arch/arm/boot/dts/am335x-osd3358-sm-red.dts b/arch/arm/boot/dts/am335x-osd3358-sm-red.dts old mode 100755 new mode 100644 From 2d59bb602314a4b2593fde267734266b5e872dd0 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Mon, 27 Aug 2018 19:18:21 -0700 Subject: [PATCH 0250/1762] ARM: dts: omap4-droid4: Fix emmc errors seen on some devices Otherwise we can get the following errors occasionally on some devices: mmc1: tried to HW reset card, got error -110 mmcblk1: error -110 requesting status mmcblk1: recovery failed! print_req_error: I/O error, dev mmcblk1, sector 14329 ... I have one device that hits this error almost on every boot, and another one that hits it only rarely with the other ones I've used behave without problems. I'm not sure if the issue is related to a particular eMMC card model, but in case it is, both of the machines with issues have: # cat /sys/class/mmc_host/mmc1/mmc1:0001/manfid \ /sys/class/mmc_host/mmc1/mmc1:0001/oemid \ /sys/class/mmc_host/mmc1/mmc1:0001/name 0x000045 0x0100 SEM16G and the working ones have: 0x000011 0x0100 016G92 Note that "ti,non-removable" is different as omap_hsmmc_reg_get() does not call omap_hsmmc_disable_boot_regulators() if no_regulator_off_init is set. And currently we set no_regulator_off_init only for "ti,non-removable" and not for "non-removable". It seems that we should have "non-removable" with some other mmc generic property behave in the same way instead of having to use a non-generic property. But let's fix the issue first. Fixes: 7e2f8c0ae670 ("ARM: dts: Add minimal support for motorola droid 4 xt894") Cc: Marcel Partap Cc: Merlijn Wajer Cc: Michael Scott Cc: NeKit Cc: Pavel Machek Cc: Sebastian Reichel Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/omap4-droid4-xt894.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts index 3c26a4bbc340..04758a2a87f0 100644 --- a/arch/arm/boot/dts/omap4-droid4-xt894.dts +++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts @@ -354,7 +354,7 @@ &mmc2 { vmmc-supply = <&vsdio>; bus-width = <8>; - non-removable; + ti,non-removable; }; &mmc3 { From 6ddd9769db4fc11a98bd7e58be1764e47fdb8384 Mon Sep 17 00:00:00 2001 From: Emily Deng Date: Tue, 28 Aug 2018 20:52:40 +0800 Subject: [PATCH 0251/1762] drm/amdgpu: Need to set moved to true when evict bo MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix the VMC page fault when the running sequence is as below: 1.amdgpu_gem_create_ioctl 2.ttm_bo_swapout->amdgpu_vm_bo_invalidate, as not called amdgpu_vm_bo_base_init, so won't called list_add_tail(&base->bo_list, &bo->va). Even the bo was evicted, it won't set the bo_base->moved. 3.drm_gem_open_ioctl->amdgpu_vm_bo_base_init, here only called list_move_tail(&base->vm_status, &vm->evicted), but not set the bo_base->moved. 4.amdgpu_vm_bo_map->amdgpu_vm_bo_insert_map, as the bo_base->moved is not set true, the function amdgpu_vm_bo_insert_map will call list_move(&bo_va->base.vm_status, &vm->moved) 5.amdgpu_cs_ioctl won't validate the swapout bo, as it is only in the moved list, not in the evict list. So VMC page fault occurs. Signed-off-by: Emily Deng Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index d174d50e3bd3..b17771dd5ce7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -172,6 +172,7 @@ static void amdgpu_vm_bo_base_init(struct amdgpu_vm_bo_base *base, * is validated on next vm use to avoid fault. * */ list_move_tail(&base->vm_status, &vm->evicted); + base->moved = true; } /** From 5d585e1e756838d91144c3173323b96f5aa12874 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Tue, 28 Aug 2018 10:44:28 -0500 Subject: [PATCH 0252/1762] ASoC: Convert to using %pOFn instead of device_node.name In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Signed-off-by: Rob Herring Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_esai.c | 2 +- sound/soc/fsl/fsl_utils.c | 4 ++-- sound/soc/meson/axg-card.c | 2 +- sound/soc/stm/stm32_sai.c | 2 +- sound/soc/stm/stm32_sai_sub.c | 7 +++---- 5 files changed, 8 insertions(+), 9 deletions(-) diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c index c1d1d06783e5..57b484768a58 100644 --- a/sound/soc/fsl/fsl_esai.c +++ b/sound/soc/fsl/fsl_esai.c @@ -807,7 +807,7 @@ static int fsl_esai_probe(struct platform_device *pdev) return -ENOMEM; esai_priv->pdev = pdev; - strncpy(esai_priv->name, np->name, sizeof(esai_priv->name) - 1); + snprintf(esai_priv->name, sizeof(esai_priv->name), "%pOFn", np); /* Get the addresses and IRQ */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); diff --git a/sound/soc/fsl/fsl_utils.c b/sound/soc/fsl/fsl_utils.c index 7f0fa4b52223..9981668ab590 100644 --- a/sound/soc/fsl/fsl_utils.c +++ b/sound/soc/fsl/fsl_utils.c @@ -57,8 +57,8 @@ int fsl_asoc_get_dma_channel(struct device_node *ssi_np, of_node_put(dma_channel_np); return ret; } - snprintf((char *)dai->platform_name, DAI_NAME_SIZE, "%llx.%s", - (unsigned long long) res.start, dma_channel_np->name); + snprintf((char *)dai->platform_name, DAI_NAME_SIZE, "%llx.%pOFn", + (unsigned long long) res.start, dma_channel_np); iprop = of_get_property(dma_channel_np, "cell-index", NULL); if (!iprop) { diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c index 2914ba0d965b..b76a5f4f1785 100644 --- a/sound/soc/meson/axg-card.c +++ b/sound/soc/meson/axg-card.c @@ -478,7 +478,7 @@ static int axg_card_set_be_link(struct snd_soc_card *card, ret = axg_card_set_link_name(card, link, "be"); if (ret) - dev_err(card->dev, "error setting %s link name\n", np->name); + dev_err(card->dev, "error setting %pOFn link name\n", np); return ret; } diff --git a/sound/soc/stm/stm32_sai.c b/sound/soc/stm/stm32_sai.c index f22654253c43..d597eba61992 100644 --- a/sound/soc/stm/stm32_sai.c +++ b/sound/soc/stm/stm32_sai.c @@ -104,7 +104,7 @@ static int stm32_sai_set_sync(struct stm32_sai_data *sai_client, if (!pdev) { dev_err(&sai_client->pdev->dev, - "Device not found for node %s\n", np_provider->name); + "Device not found for node %pOFn\n", np_provider); return -ENODEV; } diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c index 06fba9650ac4..56a227e0bd71 100644 --- a/sound/soc/stm/stm32_sai_sub.c +++ b/sound/soc/stm/stm32_sai_sub.c @@ -1124,16 +1124,15 @@ static int stm32_sai_sub_parse_of(struct platform_device *pdev, sai->sync = SAI_SYNC_NONE; if (args.np) { if (args.np == np) { - dev_err(&pdev->dev, "%s sync own reference\n", - np->name); + dev_err(&pdev->dev, "%pOFn sync own reference\n", np); of_node_put(args.np); return -EINVAL; } sai->np_sync_provider = of_get_parent(args.np); if (!sai->np_sync_provider) { - dev_err(&pdev->dev, "%s parent node not found\n", - np->name); + dev_err(&pdev->dev, "%pOFn parent node not found\n", + np); of_node_put(args.np); return -ENODEV; } From d78b1e43e2182640b33d1c39245965d9231f0130 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Tue, 28 Aug 2018 14:35:02 +0100 Subject: [PATCH 0253/1762] ASoC: dapm: Remove clock framework ifdefs The clock code now has stub functions defined in its header files so the ifdefs around clocking code should no longer be necessary. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 461d951917c0..78ab6965af55 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -1320,14 +1320,13 @@ int dapm_clock_event(struct snd_soc_dapm_widget *w, soc_dapm_async_complete(w->dapm); -#ifdef CONFIG_HAVE_CLK if (SND_SOC_DAPM_EVENT_ON(event)) { return clk_prepare_enable(w->clk); } else { clk_disable_unprepare(w->clk); return 0; } -#endif + return 0; } EXPORT_SYMBOL_GPL(dapm_clock_event); @@ -3498,7 +3497,6 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, } break; case snd_soc_dapm_clock_supply: -#ifdef CONFIG_CLKDEV_LOOKUP w->clk = devm_clk_get(dapm->dev, w->name); if (IS_ERR(w->clk)) { ret = PTR_ERR(w->clk); @@ -3508,9 +3506,6 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, w->name, ret); return NULL; } -#else - return NULL; -#endif break; default: break; From a5cd7e9cf587f51a84b86c828b4e1c7b392f448e Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Tue, 28 Aug 2018 14:35:03 +0100 Subject: [PATCH 0254/1762] ASoC: dapm: Don't fail creating new DAPM control on NULL pinctrl devm_pinctrl_get will only return NULL in the case that pinctrl is not built into the kernel and all the pinctrl functions used by the DAPM core are appropriately stubbed for that case. There is no need to error out of snd_soc_dapm_new_control_unlocked if pinctrl isn't built into the kernel, so change the IS_ERR_OR_NULL to just an IS_ERR. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 78ab6965af55..d7be3981f026 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -3487,7 +3487,7 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, break; case snd_soc_dapm_pinctrl: w->pinctrl = devm_pinctrl_get(dapm->dev); - if (IS_ERR_OR_NULL(w->pinctrl)) { + if (IS_ERR(w->pinctrl)) { ret = PTR_ERR(w->pinctrl); if (ret == -EPROBE_DEFER) return ERR_PTR(ret); From e33ffbd9cd39da09831ce62c11025d830bf78d9e Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Mon, 27 Aug 2018 14:26:47 +0100 Subject: [PATCH 0255/1762] ASoC: dpcm: Properly initialise hw->rate_max If the CPU DAI does not initialise rate_max, say if using using KNOT or CONTINUOUS, then the rate_max field will be initialised to 0. A value of zero in the rate_max field of the hardware runtime will cause the sound card to support no sample rates at all. Obviously this is not desired, just a different mechanism is being used to apply the constraints. As such update the setting of rate_max in dpcm_init_runtime_hw to be consistent with the non-DPCM cases and set rate_max to UINT_MAX if nothing is defined on the CPU DAI. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/soc-pcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index e8b98bfd4cf1..eb6f4f1b65a9 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1680,7 +1680,7 @@ static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime, struct snd_soc_pcm_stream *stream) { runtime->hw.rate_min = stream->rate_min; - runtime->hw.rate_max = stream->rate_max; + runtime->hw.rate_max = min_not_zero(stream->rate_max, UINT_MAX); runtime->hw.channels_min = stream->channels_min; runtime->hw.channels_max = stream->channels_max; if (runtime->hw.formats) From ac16df938e5107a1e08cf0f52818fa6a5f7bba94 Mon Sep 17 00:00:00 2001 From: Jerome Brunet Date: Tue, 28 Aug 2018 14:17:21 +0200 Subject: [PATCH 0256/1762] ASoC: meson: imply clock and reset controllers Add audio clock controller and ARB reset controller module implication for the device using them Signed-off-by: Jerome Brunet Signed-off-by: Mark Brown --- sound/soc/meson/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/soc/meson/Kconfig b/sound/soc/meson/Kconfig index 8af8bc358a90..2ccbadc387de 100644 --- a/sound/soc/meson/Kconfig +++ b/sound/soc/meson/Kconfig @@ -4,6 +4,8 @@ menu "ASoC support for Amlogic platforms" config SND_MESON_AXG_FIFO tristate select REGMAP_MMIO + imply COMMON_CLK_AXG_AUDIO + imply RESET_MESON_AUDIO_ARB config SND_MESON_AXG_FRDDR tristate "Amlogic AXG Playback FIFO support" @@ -22,6 +24,7 @@ config SND_MESON_AXG_TODDR config SND_MESON_AXG_TDM_FORMATTER tristate select REGMAP_MMIO + imply COMMON_CLK_AXG_AUDIO config SND_MESON_AXG_TDM_INTERFACE tristate @@ -58,6 +61,7 @@ config SND_MESON_AXG_SPDIFOUT tristate "Amlogic AXG SPDIF Output Support" select SND_PCM_IEC958 imply SND_SOC_SPDIF + imply COMMON_CLK_AXG_AUDIO help Select Y or M to add support for SPDIF output serializer embedded in the Amlogic AXG SoC family From dadfab7272b13ca441efdb9aa9117bc669680b05 Mon Sep 17 00:00:00 2001 From: Jerome Brunet Date: Mon, 27 Aug 2018 16:15:29 +0200 Subject: [PATCH 0257/1762] ASoC: meson: axg-fifo: report interrupt request failure Return value of request_irq() was irgnored. Fix this and report the failure if any Fixes: 6dc4fa179fb8 ("ASoC: meson: add axg fifo base driver") Signed-off-by: Jerome Brunet Signed-off-by: Mark Brown --- sound/soc/meson/axg-fifo.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/meson/axg-fifo.c b/sound/soc/meson/axg-fifo.c index 30262550e37b..0e4f65e654c4 100644 --- a/sound/soc/meson/axg-fifo.c +++ b/sound/soc/meson/axg-fifo.c @@ -203,6 +203,8 @@ static int axg_fifo_pcm_open(struct snd_pcm_substream *ss) ret = request_irq(fifo->irq, axg_fifo_pcm_irq_block, 0, dev_name(dev), ss); + if (ret) + return ret; /* Enable pclk to access registers and clock the fifo ip */ ret = clk_prepare_enable(fifo->pclk); From 302df2694b97e6a56f7956c1105630809b141ea0 Mon Sep 17 00:00:00 2001 From: Jerome Brunet Date: Mon, 27 Aug 2018 16:21:07 +0200 Subject: [PATCH 0258/1762] ASoC: meson: axg-tdm: restrict formats depending on slot width Restrict the formats possible on the TDM interface depending on the width of the TDM slot and let dpcm merging do the rest. Fixes: d60e4f1e4be5 ("ASoC: meson: add tdm interface driver") Signed-off-by: Jerome Brunet Signed-off-by: Mark Brown --- sound/soc/meson/axg-tdm-interface.c | 52 +++++++++++++++++------------ 1 file changed, 30 insertions(+), 22 deletions(-) diff --git a/sound/soc/meson/axg-tdm-interface.c b/sound/soc/meson/axg-tdm-interface.c index 7b8baf46d968..585ce030b79b 100644 --- a/sound/soc/meson/axg-tdm-interface.c +++ b/sound/soc/meson/axg-tdm-interface.c @@ -42,6 +42,7 @@ int axg_tdm_set_tdm_slots(struct snd_soc_dai *dai, u32 *tx_mask, struct axg_tdm_stream *rx = (struct axg_tdm_stream *) dai->capture_dma_data; unsigned int tx_slots, rx_slots; + unsigned int fmt = 0; tx_slots = axg_tdm_slots_total(tx_mask); rx_slots = axg_tdm_slots_total(rx_mask); @@ -52,36 +53,43 @@ int axg_tdm_set_tdm_slots(struct snd_soc_dai *dai, u32 *tx_mask, return -EINVAL; } - /* - * Amend the dai driver channel number and let dpcm channel merge do - * its job - */ + iface->slots = slots; + + switch (slot_width) { + case 0: + slot_width = 32; + /* Fall-through */ + case 32: + fmt |= SNDRV_PCM_FMTBIT_S32_LE; + /* Fall-through */ + case 24: + fmt |= SNDRV_PCM_FMTBIT_S24_LE; + fmt |= SNDRV_PCM_FMTBIT_S20_LE; + /* Fall-through */ + case 16: + fmt |= SNDRV_PCM_FMTBIT_S16_LE; + /* Fall-through */ + case 8: + fmt |= SNDRV_PCM_FMTBIT_S8; + break; + default: + dev_err(dai->dev, "unsupported slot width: %d\n", slot_width); + return -EINVAL; + } + + iface->slot_width = slot_width; + + /* Amend the dai driver and let dpcm merge do its job */ if (tx) { tx->mask = tx_mask; dai->driver->playback.channels_max = tx_slots; + dai->driver->playback.formats = fmt; } if (rx) { rx->mask = rx_mask; dai->driver->capture.channels_max = rx_slots; - } - - iface->slots = slots; - - switch (slot_width) { - case 0: - /* defaults width to 32 if not provided */ - iface->slot_width = 32; - break; - case 8: - case 16: - case 24: - case 32: - iface->slot_width = slot_width; - break; - default: - dev_err(dai->dev, "unsupported slot width: %d\n", slot_width); - return -EINVAL; + dai->driver->capture.formats = fmt; } return 0; From 513792c2554bdece11d82568ea25501a555abd34 Mon Sep 17 00:00:00 2001 From: Shuming Fan Date: Fri, 24 Aug 2018 10:51:51 +0800 Subject: [PATCH 0259/1762] ASoC: rt5682: Update calibration function New calibration sequence allows rt5682 do calibration without MCLK. Signed-off-by: Shuming Fan Signed-off-by: Mark Brown --- sound/soc/codecs/rt5682.c | 22 +++++----------------- 1 file changed, 5 insertions(+), 17 deletions(-) diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c index 640d400ca013..0ea2759e5885 100644 --- a/sound/soc/codecs/rt5682.c +++ b/sound/soc/codecs/rt5682.c @@ -2454,27 +2454,15 @@ static void rt5682_calibrate(struct rt5682_priv *rt5682) regmap_write(rt5682->regmap, RT5682_PWR_ANLG_1, 0xa2bf); usleep_range(15000, 20000); regmap_write(rt5682->regmap, RT5682_PWR_ANLG_1, 0xf2bf); - regmap_write(rt5682->regmap, RT5682_MICBIAS_2, 0x0380); - regmap_write(rt5682->regmap, RT5682_PWR_DIG_1, 0x8001); - regmap_write(rt5682->regmap, RT5682_TEST_MODE_CTRL_1, 0x0000); - regmap_write(rt5682->regmap, RT5682_STO1_DAC_MIXER, 0x2080); - regmap_write(rt5682->regmap, RT5682_STO1_ADC_MIXER, 0x4040); - regmap_write(rt5682->regmap, RT5682_DEPOP_1, 0x0069); + regmap_write(rt5682->regmap, RT5682_MICBIAS_2, 0x0300); + regmap_write(rt5682->regmap, RT5682_GLB_CLK, 0x8000); + regmap_write(rt5682->regmap, RT5682_PWR_DIG_1, 0x0100); regmap_write(rt5682->regmap, RT5682_CHOP_DAC, 0x3000); - regmap_write(rt5682->regmap, RT5682_HP_CTRL_2, 0x6000); - regmap_write(rt5682->regmap, RT5682_HP_CHARGE_PUMP_1, 0x0f26); - regmap_write(rt5682->regmap, RT5682_CALIB_ADC_CTRL, 0x7f05); - regmap_write(rt5682->regmap, RT5682_STO1_ADC_MIXER, 0x686c); - regmap_write(rt5682->regmap, RT5682_CAL_REC, 0x0d0d); - regmap_write(rt5682->regmap, RT5682_HP_CALIB_CTRL_9, 0x000f); - regmap_write(rt5682->regmap, RT5682_PWR_DIG_1, 0x8d01); regmap_write(rt5682->regmap, RT5682_HP_CALIB_CTRL_2, 0x0321); regmap_write(rt5682->regmap, RT5682_HP_LOGIC_CTRL_2, 0x0004); regmap_write(rt5682->regmap, RT5682_HP_CALIB_CTRL_1, 0x7c00); regmap_write(rt5682->regmap, RT5682_HP_CALIB_CTRL_3, 0x06a1); - regmap_write(rt5682->regmap, RT5682_A_DAC1_MUX, 0x0311); - regmap_write(rt5682->regmap, RT5682_RESET_HPF_CTRL, 0x0000); - regmap_write(rt5682->regmap, RT5682_ADC_STO1_HP_CTRL_1, 0x3320); + regmap_write(rt5682->regmap, RT5682_HP_CALIB_CTRL_1, 0x7c00); regmap_write(rt5682->regmap, RT5682_HP_CALIB_CTRL_1, 0xfc00); @@ -2490,7 +2478,7 @@ static void rt5682_calibrate(struct rt5682_priv *rt5682) pr_err("HP Calibration Failure\n"); /* restore settings */ - regmap_write(rt5682->regmap, RT5682_STO1_ADC_MIXER, 0xc0c4); + regmap_write(rt5682->regmap, RT5682_GLB_CLK, 0x0000); regmap_write(rt5682->regmap, RT5682_PWR_DIG_1, 0x0000); mutex_unlock(&rt5682->calibrate_mutex); From b4af16d617add4f6380d6651473b8efba13ca8ca Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Wed, 22 Aug 2018 15:24:57 -0500 Subject: [PATCH 0260/1762] ALSA: hda: move hda_codec.h to include/sound As suggested by Takashi, move this header file to make it easier to include from e.g. the Intel Skylake driver in follow-up patches Signed-off-by: Pierre-Louis Bossart Signed-off-by: Mark Brown --- {sound/pci/hda => include/sound}/hda_codec.h | 0 sound/pci/hda/hda_auto_parser.c | 2 +- sound/pci/hda/hda_beep.h | 2 +- sound/pci/hda/hda_bind.c | 2 +- sound/pci/hda/hda_codec.c | 2 +- sound/pci/hda/hda_controller.h | 2 +- sound/pci/hda/hda_eld.c | 2 +- sound/pci/hda/hda_generic.c | 2 +- sound/pci/hda/hda_hwdep.c | 2 +- sound/pci/hda/hda_intel.c | 2 +- sound/pci/hda/hda_jack.c | 2 +- sound/pci/hda/hda_proc.c | 2 +- sound/pci/hda/hda_sysfs.c | 2 +- sound/pci/hda/hda_tegra.c | 2 +- sound/pci/hda/patch_analog.c | 2 +- sound/pci/hda/patch_ca0110.c | 2 +- sound/pci/hda/patch_ca0132.c | 2 +- sound/pci/hda/patch_cirrus.c | 2 +- sound/pci/hda/patch_cmedia.c | 2 +- sound/pci/hda/patch_conexant.c | 2 +- sound/pci/hda/patch_hdmi.c | 2 +- sound/pci/hda/patch_realtek.c | 2 +- sound/pci/hda/patch_si3054.c | 2 +- sound/pci/hda/patch_sigmatel.c | 2 +- sound/pci/hda/patch_via.c | 2 +- 25 files changed, 24 insertions(+), 24 deletions(-) rename {sound/pci/hda => include/sound}/hda_codec.h (100%) diff --git a/sound/pci/hda/hda_codec.h b/include/sound/hda_codec.h similarity index 100% rename from sound/pci/hda/hda_codec.h rename to include/sound/hda_codec.h diff --git a/sound/pci/hda/hda_auto_parser.c b/sound/pci/hda/hda_auto_parser.c index b9a6b66aeb0e..df0d636145f8 100644 --- a/sound/pci/hda/hda_auto_parser.c +++ b/sound/pci/hda/hda_auto_parser.c @@ -13,7 +13,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include "hda_auto_parser.h" diff --git a/sound/pci/hda/hda_beep.h b/sound/pci/hda/hda_beep.h index d1a6a9c1329a..f1457c6b3969 100644 --- a/sound/pci/hda/hda_beep.h +++ b/sound/pci/hda/hda_beep.h @@ -9,7 +9,7 @@ #ifndef __SOUND_HDA_BEEP_H #define __SOUND_HDA_BEEP_H -#include "hda_codec.h" +#include #define HDA_BEEP_MODE_OFF 0 #define HDA_BEEP_MODE_ON 1 diff --git a/sound/pci/hda/hda_bind.c b/sound/pci/hda/hda_bind.c index d361bb77ca00..2222b47d4ec4 100644 --- a/sound/pci/hda/hda_bind.c +++ b/sound/pci/hda/hda_bind.c @@ -11,7 +11,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" /* diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 0a5085537034..ccbb0d12b8cc 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -27,7 +27,7 @@ #include #include #include -#include "hda_codec.h" +#include #include #include #include diff --git a/sound/pci/hda/hda_controller.h b/sound/pci/hda/hda_controller.h index a68e75b00ea3..55760e5231e6 100644 --- a/sound/pci/hda/hda_controller.h +++ b/sound/pci/hda/hda_controller.h @@ -20,7 +20,7 @@ #include #include #include -#include "hda_codec.h" +#include #include #define AZX_MAX_CODECS HDA_MAX_CODECS diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index ba7fe9b6655c..806b12ed44a2 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -27,7 +27,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" enum eld_versions { diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c index 579984ecdec3..276150f29cda 100644 --- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -32,7 +32,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_jack.h" diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c index cc009a4a3d1d..268bba6ec985 100644 --- a/sound/pci/hda/hda_hwdep.c +++ b/sound/pci/hda/hda_hwdep.c @@ -23,7 +23,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include #include diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 1b2ce304152a..c8fde95e2393 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -63,7 +63,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_controller.h" #include "hda_intel.h" diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c index a33234e04d4f..c499727920e6 100644 --- a/sound/pci/hda/hda_jack.c +++ b/sound/pci/hda/hda_jack.c @@ -15,7 +15,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_jack.h" diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c index c6b778b2580c..a65740419650 100644 --- a/sound/pci/hda/hda_proc.c +++ b/sound/pci/hda/hda_proc.c @@ -25,7 +25,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" static int dump_coef = -1; diff --git a/sound/pci/hda/hda_sysfs.c b/sound/pci/hda/hda_sysfs.c index 6ec79c58d48d..c154b19a0c45 100644 --- a/sound/pci/hda/hda_sysfs.c +++ b/sound/pci/hda/hda_sysfs.c @@ -14,7 +14,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include #include diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c index 0621920f7617..4bc5232eac1c 100644 --- a/sound/pci/hda/hda_tegra.c +++ b/sound/pci/hda/hda_tegra.c @@ -35,7 +35,7 @@ #include #include -#include "hda_codec.h" +#include #include "hda_controller.h" /* Defines for Nvidia Tegra HDA support */ diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c index fd476fb40e1b..ebfd0be885b3 100644 --- a/sound/pci/hda/patch_analog.c +++ b/sound/pci/hda/patch_analog.c @@ -24,7 +24,7 @@ #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_beep.h" diff --git a/sound/pci/hda/patch_ca0110.c b/sound/pci/hda/patch_ca0110.c index c2d9ee9cfdc0..21d0f0610913 100644 --- a/sound/pci/hda/patch_ca0110.c +++ b/sound/pci/hda/patch_ca0110.c @@ -22,7 +22,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_jack.h" diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c index 0166a3d7cd55..a585d0ec6d77 100644 --- a/sound/pci/hda/patch_ca0132.c +++ b/sound/pci/hda/patch_ca0132.c @@ -32,7 +32,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_jack.h" diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c index a7f91be45194..64fa5a82bb9f 100644 --- a/sound/pci/hda/patch_cirrus.c +++ b/sound/pci/hda/patch_cirrus.c @@ -23,7 +23,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_jack.h" diff --git a/sound/pci/hda/patch_cmedia.c b/sound/pci/hda/patch_cmedia.c index 1b2195dd2b26..52642ba3e2c0 100644 --- a/sound/pci/hda/patch_cmedia.c +++ b/sound/pci/hda/patch_cmedia.c @@ -25,7 +25,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_jack.h" diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index cfd4e4f97f8f..5592557fe50e 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -27,7 +27,7 @@ #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_beep.h" diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index cb587dce67a9..67099cbb6be2 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -41,7 +41,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include "hda_jack.h" diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 1d117f00d04d..6f3c8e888c2a 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -32,7 +32,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_jack.h" diff --git a/sound/pci/hda/patch_si3054.c b/sound/pci/hda/patch_si3054.c index f63acb1b965c..c49d25bcd7f2 100644 --- a/sound/pci/hda/patch_si3054.c +++ b/sound/pci/hda/patch_si3054.c @@ -27,7 +27,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" /* si3054 verbs */ diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 046705b4691a..d16a25a395c9 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -32,7 +32,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_beep.h" diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c index 6b9617aee0e6..9f6f13e25145 100644 --- a/sound/pci/hda/patch_via.c +++ b/sound/pci/hda/patch_via.c @@ -52,7 +52,7 @@ #include #include #include -#include "hda_codec.h" +#include #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_jack.h" From 8dce1d026da4588382ed8c03e791c7c9b37b22e8 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Wed, 22 Aug 2018 15:24:58 -0500 Subject: [PATCH 0261/1762] ASoC: Intel: common: add table for HDA-based platforms Expose a table containing machine driver information for HDAudio-based platforms handled by ASoC on Intel hardware. We only set constant values that are valid across multiple platforms. The firmware name used by the DSP will be set dynamically for each platform. The table is made of a single entry for now, if we need more complicated set-up where HDAudio is mixed with ACPI-enumerated devices (I2C, SoundWire) then we'd expect the differentiation to be handled through information provided by the BIOS (as done for KBL Chromebooks). Signed-off-by: Pierre-Louis Bossart Signed-off-by: Mark Brown --- include/sound/soc-acpi-intel-match.h | 6 +++ sound/soc/intel/common/Makefile | 3 +- .../intel/common/soc-acpi-intel-hda-match.c | 40 +++++++++++++++++++ 3 files changed, 48 insertions(+), 1 deletion(-) create mode 100644 sound/soc/intel/common/soc-acpi-intel-hda-match.c diff --git a/include/sound/soc-acpi-intel-match.h b/include/sound/soc-acpi-intel-match.h index bb1d24b703fb..f48f59e5b7b0 100644 --- a/include/sound/soc-acpi-intel-match.h +++ b/include/sound/soc-acpi-intel-match.h @@ -25,4 +25,10 @@ extern struct snd_soc_acpi_mach snd_soc_acpi_intel_bxt_machines[]; extern struct snd_soc_acpi_mach snd_soc_acpi_intel_glk_machines[]; extern struct snd_soc_acpi_mach snd_soc_acpi_intel_cnl_machines[]; +/* + * generic table used for HDA codec-based platforms, possibly with + * additional ACPI-enumerated codecs + */ +extern struct snd_soc_acpi_mach snd_soc_acpi_intel_hda_machines[]; + #endif diff --git a/sound/soc/intel/common/Makefile b/sound/soc/intel/common/Makefile index 915a34cdc8ac..c1f50a079d34 100644 --- a/sound/soc/intel/common/Makefile +++ b/sound/soc/intel/common/Makefile @@ -7,7 +7,8 @@ snd-soc-acpi-intel-match-objs := soc-acpi-intel-byt-match.o soc-acpi-intel-cht-m soc-acpi-intel-hsw-bdw-match.o \ soc-acpi-intel-skl-match.o soc-acpi-intel-kbl-match.o \ soc-acpi-intel-bxt-match.o soc-acpi-intel-glk-match.o \ - soc-acpi-intel-cnl-match.o + soc-acpi-intel-cnl-match.o \ + soc-acpi-intel-hda-match.o obj-$(CONFIG_SND_SOC_INTEL_SST) += snd-soc-sst-dsp.o snd-soc-sst-ipc.o obj-$(CONFIG_SND_SOC_INTEL_SST_ACPI) += snd-soc-sst-acpi.o diff --git a/sound/soc/intel/common/soc-acpi-intel-hda-match.c b/sound/soc/intel/common/soc-acpi-intel-hda-match.c new file mode 100644 index 000000000000..533c1064f84b --- /dev/null +++ b/sound/soc/intel/common/soc-acpi-intel-hda-match.c @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2018, Intel Corporation. + +/* + * soc-apci-intel-hda-match.c - tables and support for HDA+ACPI enumeration. + * + */ + +#include +#include +#include "../skylake/skl.h" + +static struct skl_machine_pdata hda_pdata = { + .use_tplg_pcm = true, +}; + +struct snd_soc_acpi_mach snd_soc_acpi_intel_hda_machines[] = { + { + /* .id is not used in this file */ + .drv_name = "skl_hda_dsp_generic", + + /* .fw_filename is dynamically set in skylake driver */ + + /* .sof_fw_filename is dynamically set in sof/intel driver */ + + .sof_tplg_filename = "intel/sof-hda-generic.tplg", + + /* + * .machine_quirk and .quirk_data are not used here but + * can be used if we need a more complicated machine driver + * combining HDA+other device (e.g. DMIC). + */ + .pdata = &hda_pdata, + }, + {}, +}; +EXPORT_SYMBOL_GPL(snd_soc_acpi_intel_hda_machines); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Intel Common ACPI Match module"); From 7c33b5f16915a7bc3d3b81a9a041bdc562f71dfb Mon Sep 17 00:00:00 2001 From: Rakesh Ughreja Date: Wed, 22 Aug 2018 15:24:59 -0500 Subject: [PATCH 0262/1762] ASoC: Intel: Boards: Machine driver for SKL+ w/ HDAudio codecs Add machine driver for Intel platforms (SKL/KBL/BXT/APL) with HDA and iDisp codecs. This patch adds support for only iDisp (HDMI/DP) codec. In the following patches support for HDA codecs will be added. This should work for other Intel platforms as well e.g. GLK,CNL however this series is not tested on all the platforms. Signed-off-by: Rakesh Ughreja Signed-off-by: Pierre-Louis Bossart Signed-off-by: Mark Brown --- sound/soc/intel/boards/Kconfig | 8 ++ sound/soc/intel/boards/Makefile | 2 + sound/soc/intel/boards/skl_hda_dsp_common.c | 103 +++++++++++++ sound/soc/intel/boards/skl_hda_dsp_common.h | 38 +++++ sound/soc/intel/boards/skl_hda_dsp_generic.c | 144 +++++++++++++++++++ sound/soc/intel/skylake/skl.h | 2 + 6 files changed, 297 insertions(+) create mode 100644 sound/soc/intel/boards/skl_hda_dsp_common.c create mode 100644 sound/soc/intel/boards/skl_hda_dsp_common.h create mode 100644 sound/soc/intel/boards/skl_hda_dsp_generic.c diff --git a/sound/soc/intel/boards/Kconfig b/sound/soc/intel/boards/Kconfig index cccda87f4b34..0f0d57859555 100644 --- a/sound/soc/intel/boards/Kconfig +++ b/sound/soc/intel/boards/Kconfig @@ -279,6 +279,14 @@ config SND_SOC_INTEL_KBL_DA7219_MAX98357A_MACH This adds support for ASoC Onboard Codec I2S machine driver. This will create an alsa sound card for DA7219 + MAX98357A I2S audio codec. Say Y if you have such a device. + +config SND_SOC_INTEL_SKL_HDA_DSP_GENERIC_MACH + tristate "SKL/KBL/BXT/APL with HDA Codecs" + select SND_SOC_HDAC_HDMI + help + This adds support for ASoC machine driver for Intel platforms + SKL/KBL/BXT/APL with iDisp, HDA audio codecs. + Say Y or m if you have such a device. This is a recommended option. If unsure select "N". config SND_SOC_INTEL_GLK_RT5682_MAX98357A_MACH diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile index 87ef8b4058e5..6e88373cbe35 100644 --- a/sound/soc/intel/boards/Makefile +++ b/sound/soc/intel/boards/Makefile @@ -20,6 +20,7 @@ snd-soc-kbl_da7219_max98357a-objs := kbl_da7219_max98357a.o snd-soc-kbl_rt5663_max98927-objs := kbl_rt5663_max98927.o snd-soc-kbl_rt5663_rt5514_max98927-objs := kbl_rt5663_rt5514_max98927.o snd-soc-skl_rt286-objs := skl_rt286.o +snd-soc-skl_hda_dsp-objs := skl_hda_dsp_generic.o skl_hda_dsp_common.o snd-skl_nau88l25_max98357a-objs := skl_nau88l25_max98357a.o snd-soc-skl_nau88l25_ssm4567-objs := skl_nau88l25_ssm4567.o @@ -46,3 +47,4 @@ obj-$(CONFIG_SND_SOC_INTEL_KBL_RT5663_RT5514_MAX98927_MACH) += snd-soc-kbl_rt566 obj-$(CONFIG_SND_SOC_INTEL_SKL_RT286_MACH) += snd-soc-skl_rt286.o obj-$(CONFIG_SND_SOC_INTEL_SKL_NAU88L25_MAX98357A_MACH) += snd-skl_nau88l25_max98357a.o obj-$(CONFIG_SND_SOC_INTEL_SKL_NAU88L25_SSM4567_MACH) += snd-soc-skl_nau88l25_ssm4567.o +obj-$(CONFIG_SND_SOC_INTEL_SKL_HDA_DSP_GENERIC_MACH) += snd-soc-skl_hda_dsp.o diff --git a/sound/soc/intel/boards/skl_hda_dsp_common.c b/sound/soc/intel/boards/skl_hda_dsp_common.c new file mode 100644 index 000000000000..f9917e0f2ba8 --- /dev/null +++ b/sound/soc/intel/boards/skl_hda_dsp_common.c @@ -0,0 +1,103 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright(c) 2015-18 Intel Corporation. + +/* + * Common functions used in different Intel machine drivers + */ +#include +#include +#include +#include +#include +#include +#include +#include "../../codecs/hdac_hdmi.h" +#include "../skylake/skl.h" +#include "skl_hda_dsp_common.h" + +#define NAME_SIZE 32 + +int skl_hda_hdmi_add_pcm(struct snd_soc_card *card, int device) +{ + struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card); + struct skl_hda_hdmi_pcm *pcm; + char dai_name[NAME_SIZE]; + + pcm = devm_kzalloc(card->dev, sizeof(*pcm), GFP_KERNEL); + if (!pcm) + return -ENOMEM; + + snprintf(dai_name, sizeof(dai_name), "intel-hdmi-hifi%d", + ctx->dai_index); + pcm->codec_dai = snd_soc_card_get_codec_dai(card, dai_name); + if (!pcm->codec_dai) + return -EINVAL; + + pcm->device = device; + list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); + + return 0; +} + +/* skl_hda_digital audio interface glue - connects codec <--> CPU */ +struct snd_soc_dai_link skl_hda_be_dai_links[HDA_DSP_MAX_BE_DAI_LINKS] = { + /* Back End DAI links */ + { + .name = "iDisp1", + .id = 1, + .cpu_dai_name = "iDisp1 Pin", + .codec_name = "ehdaudio0D2", + .codec_dai_name = "intel-hdmi-hifi1", + .dpcm_playback = 1, + .no_pcm = 1, + }, + { + .name = "iDisp2", + .id = 2, + .cpu_dai_name = "iDisp2 Pin", + .codec_name = "ehdaudio0D2", + .codec_dai_name = "intel-hdmi-hifi2", + .dpcm_playback = 1, + .no_pcm = 1, + }, + { + .name = "iDisp3", + .id = 3, + .cpu_dai_name = "iDisp3 Pin", + .codec_name = "ehdaudio0D2", + .codec_dai_name = "intel-hdmi-hifi3", + .dpcm_playback = 1, + .no_pcm = 1, + }, +}; + +int skl_hda_hdmi_jack_init(struct snd_soc_card *card) +{ + struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card); + struct snd_soc_component *component = NULL; + struct skl_hda_hdmi_pcm *pcm; + char jack_name[NAME_SIZE]; + int err; + + list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { + component = pcm->codec_dai->component; + snprintf(jack_name, sizeof(jack_name), + "HDMI/DP, pcm=%d Jack", pcm->device); + err = snd_soc_card_jack_new(card, jack_name, + SND_JACK_AVOUT, &pcm->hdmi_jack, + NULL, 0); + + if (err) + return err; + + err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device, + &pcm->hdmi_jack); + if (err < 0) + return err; + } + + if (!component) + return -EINVAL; + + return hdac_hdmi_jack_port_init(component, &card->dapm); +} diff --git a/sound/soc/intel/boards/skl_hda_dsp_common.h b/sound/soc/intel/boards/skl_hda_dsp_common.h new file mode 100644 index 000000000000..b6c79696bfba --- /dev/null +++ b/sound/soc/intel/boards/skl_hda_dsp_common.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright(c) 2015-18 Intel Corporation. + */ + +/* + * This file defines data structures used in Machine Driver for Intel + * platforms with HDA Codecs. + */ + +#ifndef __SOUND_SOC_HDA_DSP_COMMON_H +#define __SOUND_SOC_HDA_DSP_COMMON_H +#include +#include +#include +#include + +#define HDA_DSP_MAX_BE_DAI_LINKS 3 + +struct skl_hda_hdmi_pcm { + struct list_head head; + struct snd_soc_dai *codec_dai; + struct snd_soc_jack hdmi_jack; + int device; +}; + +struct skl_hda_private { + struct list_head hdmi_pcm_list; + int pcm_count; + int dai_index; + const char *platform_name; +}; + +extern struct snd_soc_dai_link skl_hda_be_dai_links[HDA_DSP_MAX_BE_DAI_LINKS]; +int skl_hda_hdmi_jack_init(struct snd_soc_card *card); +int skl_hda_hdmi_add_pcm(struct snd_soc_card *card, int device); + +#endif /* __SOUND_SOC_HDA_DSP_COMMON_H */ diff --git a/sound/soc/intel/boards/skl_hda_dsp_generic.c b/sound/soc/intel/boards/skl_hda_dsp_generic.c new file mode 100644 index 000000000000..920bc2ce22aa --- /dev/null +++ b/sound/soc/intel/boards/skl_hda_dsp_generic.c @@ -0,0 +1,144 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright(c) 2015-18 Intel Corporation. + +/* + * Machine Driver for SKL+ platforms with DSP and iDisp, HDA Codecs + */ + +#include +#include +#include +#include +#include +#include +#include +#include "../../codecs/hdac_hdmi.h" +#include "../skylake/skl.h" +#include "skl_hda_dsp_common.h" + +static const struct snd_soc_dapm_route skl_hda_map[] = { + { "hifi3", NULL, "iDisp3 Tx"}, + { "iDisp3 Tx", NULL, "iDisp3_out"}, + { "hifi2", NULL, "iDisp2 Tx"}, + { "iDisp2 Tx", NULL, "iDisp2_out"}, + { "hifi1", NULL, "iDisp1 Tx"}, + { "iDisp1 Tx", NULL, "iDisp1_out"}, +}; + +static int skl_hda_card_late_probe(struct snd_soc_card *card) +{ + return skl_hda_hdmi_jack_init(card); +} + +static int +skl_hda_add_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *link) +{ + struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card); + int ret = 0; + + dev_dbg(card->dev, "%s: dai link name - %s\n", __func__, link->name); + link->platform_name = ctx->platform_name; + link->nonatomic = 1; + + if (strstr(link->name, "HDMI")) { + ret = skl_hda_hdmi_add_pcm(card, ctx->pcm_count); + + if (ret < 0) + return ret; + + ctx->dai_index++; + } + + ctx->pcm_count++; + return ret; +} + +static struct snd_soc_card hda_soc_card = { + .name = "skl_hda_card", + .owner = THIS_MODULE, + .dai_link = skl_hda_be_dai_links, + .dapm_routes = skl_hda_map, + .add_dai_link = skl_hda_add_dai_link, + .fully_routed = true, + .late_probe = skl_hda_card_late_probe, +}; + +#define IDISP_DAI_COUNT 3 +/* there are two routes per iDisp output */ +#define IDISP_ROUTE_COUNT (IDISP_DAI_COUNT * 2) +#define IDISP_CODEC_MASK 0x4 + +static int skl_hda_fill_card_info(struct skl_machine_pdata *pdata) +{ + struct snd_soc_card *card = &hda_soc_card; + u32 codec_count, codec_mask; + int i, num_links, num_route; + + codec_mask = pdata->codec_mask; + codec_count = hweight_long(codec_mask); + + if (codec_count == 1 && pdata->codec_mask & IDISP_CODEC_MASK) { + num_links = IDISP_DAI_COUNT; + num_route = IDISP_ROUTE_COUNT; + } else { + return -EINVAL; + } + + card->num_links = num_links; + card->num_dapm_routes = num_route; + + for (i = 0; i < num_links; i++) + skl_hda_be_dai_links[i].platform_name = pdata->platform; + + return 0; +} + +static int skl_hda_audio_probe(struct platform_device *pdev) +{ + struct skl_machine_pdata *pdata; + struct skl_hda_private *ctx; + int ret; + + dev_dbg(&pdev->dev, "%s: entry\n", __func__); + + ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC); + if (!ctx) + return -ENOMEM; + + INIT_LIST_HEAD(&ctx->hdmi_pcm_list); + + pdata = dev_get_drvdata(&pdev->dev); + if (!pdata) + return -EINVAL; + + ret = skl_hda_fill_card_info(pdata); + if (ret < 0) { + dev_err(&pdev->dev, "Unsupported HDAudio/iDisp configuration found\n"); + return ret; + } + + ctx->pcm_count = hda_soc_card.num_links; + ctx->dai_index = 1; /* hdmi codec dai name starts from index 1 */ + ctx->platform_name = pdata->platform; + + hda_soc_card.dev = &pdev->dev; + snd_soc_card_set_drvdata(&hda_soc_card, ctx); + + return devm_snd_soc_register_card(&pdev->dev, &hda_soc_card); +} + +static struct platform_driver skl_hda_audio = { + .probe = skl_hda_audio_probe, + .driver = { + .name = "skl_hda_dsp_generic", + .pm = &snd_soc_pm_ops, + }, +}; + +module_platform_driver(skl_hda_audio) + +/* Module information */ +MODULE_DESCRIPTION("SKL/KBL/BXT/APL HDA Generic Machine driver"); +MODULE_AUTHOR("Rakesh Ughreja "); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:skl_hda_dsp_generic"); diff --git a/sound/soc/intel/skylake/skl.h b/sound/soc/intel/skylake/skl.h index 78aa8bdcb619..4105a9371b64 100644 --- a/sound/soc/intel/skylake/skl.h +++ b/sound/soc/intel/skylake/skl.h @@ -117,6 +117,8 @@ struct skl_dma_params { struct skl_machine_pdata { u32 dmic_num; bool use_tplg_pcm; /* use dais and dai links from topology */ + const char *platform; + u32 codec_mask; }; struct skl_dsp_ops { From 9cdae4352cba3f66d39a4ef78bb726940ae1e513 Mon Sep 17 00:00:00 2001 From: Rakesh Ughreja Date: Wed, 22 Aug 2018 15:25:00 -0500 Subject: [PATCH 0263/1762] ASoC: Intel: Skylake: use HDAudio if ACPI enumeration fails When no I2S based codec entries are found in the BIOS, check if there are any HDA codecs detected on the bus. Based on the number of codecs found take appropriate action in machine driver. If there are two HDA codecs i.e. iDisp + HDA found on the bus, register DAIs and DAI links for both. If only one codec i.e. iDisp is found then load only iDisp machine driver. Signed-off-by: Rakesh Ughreja Signed-off-by: Pierre-Louis Bossart Signed-off-by: Mark Brown --- sound/soc/intel/skylake/skl.c | 38 ++++++++++++++++++++++++++++++----- 1 file changed, 33 insertions(+), 5 deletions(-) diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index cf09721ca13e..3b836125d1de 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -472,6 +472,25 @@ static struct skl_ssp_clk skl_ssp_clks[] = { {.name = "ssp5_sclkfs"}, }; +static struct snd_soc_acpi_mach *skl_find_hda_machine(struct skl *skl, + struct snd_soc_acpi_mach *machines) +{ + struct hdac_bus *bus = skl_to_bus(skl); + struct snd_soc_acpi_mach *mach; + + /* check if we have any codecs detected on bus */ + if (bus->codec_mask == 0) + return NULL; + + /* point to common table */ + mach = snd_soc_acpi_intel_hda_machines; + + /* all entries in the machine table use the same firmware */ + mach->fw_filename = machines->fw_filename; + + return mach; +} + static int skl_find_machine(struct skl *skl, void *driver_data) { struct hdac_bus *bus = skl_to_bus(skl); @@ -479,9 +498,13 @@ static int skl_find_machine(struct skl *skl, void *driver_data) struct skl_machine_pdata *pdata; mach = snd_soc_acpi_find_machine(mach); - if (mach == NULL) { - dev_err(bus->dev, "No matching machine driver found\n"); - return -ENODEV; + if (!mach) { + dev_dbg(bus->dev, "No matching I2S machine driver found\n"); + mach = skl_find_hda_machine(skl, driver_data); + if (!mach) { + dev_err(bus->dev, "No matching machine driver found\n"); + return -ENODEV; + } } skl->mach = mach; @@ -498,8 +521,9 @@ static int skl_find_machine(struct skl *skl, void *driver_data) static int skl_machine_device_register(struct skl *skl) { - struct hdac_bus *bus = skl_to_bus(skl); struct snd_soc_acpi_mach *mach = skl->mach; + struct hdac_bus *bus = skl_to_bus(skl); + struct skl_machine_pdata *pdata; struct platform_device *pdev; int ret; @@ -516,8 +540,12 @@ static int skl_machine_device_register(struct skl *skl) return -EIO; } - if (mach->pdata) + if (mach->pdata) { + pdata = (struct skl_machine_pdata *)mach->pdata; + pdata->platform = dev_name(bus->dev); + pdata->codec_mask = bus->codec_mask; dev_set_drvdata(&pdev->dev, mach->pdata); + } skl->i2s_dev = pdev; From 3d17871349d5cec0a37ce9407ba72fdbf8572cfd Mon Sep 17 00:00:00 2001 From: Rakesh Ughreja Date: Wed, 22 Aug 2018 15:25:01 -0500 Subject: [PATCH 0264/1762] ASoC: Intel: Skylake: add HDA BE DAIs Add support for HDA BE DAIs in SKL platform driver. Signed-off-by: Rakesh Ughreja Signed-off-by: Pierre-Louis Bossart Signed-off-by: Mark Brown --- sound/soc/intel/skylake/skl-pcm.c | 70 +++++++++++++++++++++++++------ 1 file changed, 58 insertions(+), 12 deletions(-) diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c index 823e39103edd..00b7a91b18c9 100644 --- a/sound/soc/intel/skylake/skl-pcm.c +++ b/sound/soc/intel/skylake/skl-pcm.c @@ -32,6 +32,7 @@ #define HDA_MONO 1 #define HDA_STEREO 2 #define HDA_QUAD 4 +#define HDA_MAX 8 static const struct snd_pcm_hardware azx_pcm_hw = { .info = (SNDRV_PCM_INFO_MMAP | @@ -569,7 +570,10 @@ static int skl_link_hw_params(struct snd_pcm_substream *substream, stream_tag = hdac_stream(link_dev)->stream_tag; /* set the stream tag in the codec dai dma params */ - snd_soc_dai_set_tdm_slot(codec_dai, stream_tag, 0, 0, 0); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + snd_soc_dai_set_tdm_slot(codec_dai, stream_tag, 0, 0, 0); + else + snd_soc_dai_set_tdm_slot(codec_dai, 0, stream_tag, 0, 0); p_params.s_fmt = snd_pcm_format_width(params_format(params)); p_params.ch = params_channels(params); @@ -995,21 +999,63 @@ static struct snd_soc_dai_driver skl_platform_dai[] = { }, }, { - .name = "HD-Codec Pin", + .name = "Analog CPU DAI", .ops = &skl_link_dai_ops, .playback = { - .stream_name = "HD-Codec Tx", - .channels_min = HDA_STEREO, - .channels_max = HDA_STEREO, - .rates = SNDRV_PCM_RATE_48000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, + .stream_name = "Analog CPU Playback", + .channels_min = HDA_MONO, + .channels_max = HDA_MAX, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, }, .capture = { - .stream_name = "HD-Codec Rx", - .channels_min = HDA_STEREO, - .channels_max = HDA_STEREO, - .rates = SNDRV_PCM_RATE_48000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, + .stream_name = "Analog CPU Capture", + .channels_min = HDA_MONO, + .channels_max = HDA_MAX, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, +}, +{ + .name = "Alt Analog CPU DAI", + .ops = &skl_link_dai_ops, + .playback = { + .stream_name = "Alt Analog CPU Playback", + .channels_min = HDA_MONO, + .channels_max = HDA_MAX, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, + .capture = { + .stream_name = "Alt Analog CPU Capture", + .channels_min = HDA_MONO, + .channels_max = HDA_MAX, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, +}, +{ + .name = "Digital CPU DAI", + .ops = &skl_link_dai_ops, + .playback = { + .stream_name = "Digital CPU Playback", + .channels_min = HDA_MONO, + .channels_max = HDA_MAX, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, + .capture = { + .stream_name = "Digital CPU Capture", + .channels_min = HDA_MONO, + .channels_max = HDA_MAX, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, }, }, }; From 00deadb5d86a3c1e691aaa073a8852a198595099 Mon Sep 17 00:00:00 2001 From: Rakesh Ughreja Date: Wed, 22 Aug 2018 15:25:02 -0500 Subject: [PATCH 0265/1762] ASoC: Intel: Skylake: use hda_bus instead of hdac_bus Use hda_bus instead of hdac_bus in the SKL ASoC platform driver to enable reuse of legacy HDA codec drivers. Signed-off-by: Rakesh Ughreja Signed-off-by: Pierre-Louis Bossart Signed-off-by: Mark Brown --- sound/soc/intel/skylake/skl.c | 11 +++++++++-- sound/soc/intel/skylake/skl.h | 10 +++++++--- 2 files changed, 16 insertions(+), 5 deletions(-) diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index 3b836125d1de..5f281d443a53 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -33,6 +33,7 @@ #include #include #include +#include #include "skl.h" #include "skl-sst-dsp.h" #include "skl-sst-ipc.h" @@ -673,7 +674,7 @@ static int probe_codec(struct hdac_bus *bus, int addr) mutex_unlock(&bus->cmd_mutex); if (res == -1) return -EIO; - dev_dbg(bus->dev, "codec #%d probed OK\n", addr); + dev_dbg(bus->dev, "codec #%d probed OK: %x\n", addr, res); hdev = devm_kzalloc(&skl->pci->dev, sizeof(*hdev), GFP_KERNEL); if (!hdev) @@ -816,7 +817,7 @@ static int skl_create(struct pci_dev *pci, { struct skl *skl; struct hdac_bus *bus; - + struct hda_bus *hbus; int err; *rskl = NULL; @@ -831,6 +832,7 @@ static int skl_create(struct pci_dev *pci, return -ENOMEM; } + hbus = skl_to_hbus(skl); bus = skl_to_bus(skl); snd_hdac_ext_bus_init(bus, &pci->dev, &bus_core_ops, io_ops, NULL); bus->use_posbuf = 1; @@ -838,6 +840,11 @@ static int skl_create(struct pci_dev *pci, INIT_WORK(&skl->probe_work, skl_probe_work); bus->bdl_pos_adj = 0; + mutex_init(&hbus->prepare_mutex); + hbus->pci = pci; + hbus->mixer_assigned = -1; + hbus->modelname = "sklbus"; + *rskl = skl; return 0; diff --git a/sound/soc/intel/skylake/skl.h b/sound/soc/intel/skylake/skl.h index 4105a9371b64..8d48cd7c56c8 100644 --- a/sound/soc/intel/skylake/skl.h +++ b/sound/soc/intel/skylake/skl.h @@ -23,6 +23,7 @@ #include #include +#include #include #include "skl-nhlt.h" #include "skl-ssp-clk.h" @@ -71,7 +72,7 @@ struct skl_fw_config { }; struct skl { - struct hdac_bus hbus; + struct hda_bus hbus; struct pci_dev *pci; unsigned int init_done:1; /* delayed init status */ @@ -105,8 +106,11 @@ struct skl { struct snd_soc_acpi_mach *mach; }; -#define skl_to_bus(s) (&(s)->hbus) -#define bus_to_skl(bus) container_of(bus, struct skl, hbus) +#define skl_to_bus(s) (&(s)->hbus.core) +#define bus_to_skl(bus) container_of(bus, struct skl, hbus.core) + +#define skl_to_hbus(s) (&(s)->hbus) +#define hbus_to_skl(hbus) container_of((hbus), struct skl, (hbus)) /* to pass dai dma data */ struct skl_dma_params { From 6bae5ea9498926440ffc883f3dbceb0adc65e492 Mon Sep 17 00:00:00 2001 From: Rakesh Ughreja Date: Wed, 22 Aug 2018 15:25:03 -0500 Subject: [PATCH 0266/1762] ASoC: hdac_hda: add asoc extension for legacy HDA codec drivers This patch adds a kernel module which is used by the legacy HDA codec drivers as library. This implements hdac_ext_bus_ops to enable the reuse of legacy HDA codec drivers with ASoC platform drivers. Signed-off-by: Rakesh Ughreja Signed-off-by: Pierre-Louis Bossart Signed-off-by: Mark Brown --- sound/pci/hda/hda_bind.c | 12 + sound/soc/codecs/Kconfig | 5 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/hdac_hda.c | 484 +++++++++++++++++++ sound/soc/codecs/hdac_hda.h | 24 + sound/soc/intel/boards/Kconfig | 1 + sound/soc/intel/boards/skl_hda_dsp_common.c | 24 + sound/soc/intel/boards/skl_hda_dsp_common.h | 2 +- sound/soc/intel/boards/skl_hda_dsp_generic.c | 38 ++ sound/soc/intel/skylake/skl.c | 47 +- 10 files changed, 634 insertions(+), 5 deletions(-) create mode 100644 sound/soc/codecs/hdac_hda.c create mode 100644 sound/soc/codecs/hdac_hda.h diff --git a/sound/pci/hda/hda_bind.c b/sound/pci/hda/hda_bind.c index 2222b47d4ec4..9174f1b3a987 100644 --- a/sound/pci/hda/hda_bind.c +++ b/sound/pci/hda/hda_bind.c @@ -81,6 +81,12 @@ static int hda_codec_driver_probe(struct device *dev) hda_codec_patch_t patch; int err; + if (codec->bus->core.ext_ops) { + if (WARN_ON(!codec->bus->core.ext_ops->hdev_attach)) + return -EINVAL; + return codec->bus->core.ext_ops->hdev_attach(&codec->core); + } + if (WARN_ON(!codec->preset)) return -EINVAL; @@ -134,6 +140,12 @@ static int hda_codec_driver_remove(struct device *dev) { struct hda_codec *codec = dev_to_hda_codec(dev); + if (codec->bus->core.ext_ops) { + if (WARN_ON(!codec->bus->core.ext_ops->hdev_detach)) + return -EINVAL; + return codec->bus->core.ext_ops->hdev_detach(&codec->core); + } + if (codec->patch_ops.free) codec->patch_ops.free(codec); snd_hda_codec_cleanup_for_unbind(codec); diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index efb095dbcd71..bf0b949eb7e8 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -82,6 +82,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_ES7241 select SND_SOC_GTM601 select SND_SOC_HDAC_HDMI + select SND_SOC_HDAC_HDA select SND_SOC_ICS43432 select SND_SOC_INNO_RK3036 select SND_SOC_ISABELLE if I2C @@ -615,6 +616,10 @@ config SND_SOC_HDAC_HDMI select SND_PCM_ELD select HDMI +config SND_SOC_HDAC_HDA + tristate + select SND_HDA + config SND_SOC_ICS43432 tristate diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 7ae7c85e8219..3046b33ca9d3 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -78,6 +78,7 @@ snd-soc-es8328-i2c-objs := es8328-i2c.o snd-soc-es8328-spi-objs := es8328-spi.o snd-soc-gtm601-objs := gtm601.o snd-soc-hdac-hdmi-objs := hdac_hdmi.o +snd-soc-hdac-hda-objs := hdac_hda.o snd-soc-ics43432-objs := ics43432.o snd-soc-inno-rk3036-objs := inno_rk3036.o snd-soc-isabelle-objs := isabelle.o @@ -338,6 +339,7 @@ obj-$(CONFIG_SND_SOC_ES8328_I2C)+= snd-soc-es8328-i2c.o obj-$(CONFIG_SND_SOC_ES8328_SPI)+= snd-soc-es8328-spi.o obj-$(CONFIG_SND_SOC_GTM601) += snd-soc-gtm601.o obj-$(CONFIG_SND_SOC_HDAC_HDMI) += snd-soc-hdac-hdmi.o +obj-$(CONFIG_SND_SOC_HDAC_HDA) += snd-soc-hdac-hda.o obj-$(CONFIG_SND_SOC_ICS43432) += snd-soc-ics43432.o obj-$(CONFIG_SND_SOC_INNO_RK3036) += snd-soc-inno-rk3036.o obj-$(CONFIG_SND_SOC_ISABELLE) += snd-soc-isabelle.o diff --git a/sound/soc/codecs/hdac_hda.c b/sound/soc/codecs/hdac_hda.c new file mode 100644 index 000000000000..8c25a1332fa7 --- /dev/null +++ b/sound/soc/codecs/hdac_hda.c @@ -0,0 +1,484 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright(c) 2015-18 Intel Corporation. + +/* + * hdac_hda.c - ASoC extensions to reuse the legacy HDA codec drivers + * with ASoC platform drivers. These APIs are called by the legacy HDA + * codec drivers using hdac_ext_bus_ops ops. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "hdac_hda.h" + +#define HDAC_ANALOG_DAI_ID 0 +#define HDAC_DIGITAL_DAI_ID 1 +#define HDAC_ALT_ANALOG_DAI_ID 2 + +#define STUB_FORMATS (SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_U8 | \ + SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_U16_LE | \ + SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_U24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE | \ + SNDRV_PCM_FMTBIT_U32_LE | \ + SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) + +static int hdac_hda_dai_open(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai); +static void hdac_hda_dai_close(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai); +static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai); +static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai); +static int hdac_hda_dai_set_tdm_slot(struct snd_soc_dai *dai, + unsigned int tx_mask, unsigned int rx_mask, + int slots, int slot_width); +static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt, + struct snd_soc_dai *dai); + +static struct snd_soc_dai_ops hdac_hda_dai_ops = { + .startup = hdac_hda_dai_open, + .shutdown = hdac_hda_dai_close, + .prepare = hdac_hda_dai_prepare, + .hw_free = hdac_hda_dai_hw_free, + .set_tdm_slot = hdac_hda_dai_set_tdm_slot, +}; + +static struct snd_soc_dai_driver hdac_hda_dais[] = { +{ + .id = HDAC_ANALOG_DAI_ID, + .name = "Analog Codec DAI", + .ops = &hdac_hda_dai_ops, + .playback = { + .stream_name = "Analog Codec Playback", + .channels_min = 1, + .channels_max = 16, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = STUB_FORMATS, + .sig_bits = 24, + }, + .capture = { + .stream_name = "Analog Codec Capture", + .channels_min = 1, + .channels_max = 16, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = STUB_FORMATS, + .sig_bits = 24, + }, +}, +{ + .id = HDAC_DIGITAL_DAI_ID, + .name = "Digital Codec DAI", + .ops = &hdac_hda_dai_ops, + .playback = { + .stream_name = "Digital Codec Playback", + .channels_min = 1, + .channels_max = 16, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = STUB_FORMATS, + .sig_bits = 24, + }, + .capture = { + .stream_name = "Digital Codec Capture", + .channels_min = 1, + .channels_max = 16, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = STUB_FORMATS, + .sig_bits = 24, + }, +}, +{ + .id = HDAC_ALT_ANALOG_DAI_ID, + .name = "Alt Analog Codec DAI", + .ops = &hdac_hda_dai_ops, + .playback = { + .stream_name = "Alt Analog Codec Playback", + .channels_min = 1, + .channels_max = 16, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = STUB_FORMATS, + .sig_bits = 24, + }, + .capture = { + .stream_name = "Alt Analog Codec Capture", + .channels_min = 1, + .channels_max = 16, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = STUB_FORMATS, + .sig_bits = 24, + }, +} + +}; + +static int hdac_hda_dai_set_tdm_slot(struct snd_soc_dai *dai, + unsigned int tx_mask, unsigned int rx_mask, + int slots, int slot_width) +{ + struct snd_soc_component *component = dai->component; + struct hdac_hda_priv *hda_pvt; + struct hdac_hda_pcm *pcm; + + hda_pvt = snd_soc_component_get_drvdata(component); + pcm = &hda_pvt->pcm[dai->id]; + if (tx_mask) + pcm[dai->id].stream_tag[SNDRV_PCM_STREAM_PLAYBACK] = tx_mask; + else + pcm[dai->id].stream_tag[SNDRV_PCM_STREAM_CAPTURE] = rx_mask; + + return 0; +} + +static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct hdac_hda_priv *hda_pvt; + struct hda_pcm_stream *hda_stream; + struct hda_pcm *pcm; + + hda_pvt = snd_soc_component_get_drvdata(component); + pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai); + if (!pcm) + return -EINVAL; + + hda_stream = &pcm->stream[substream->stream]; + snd_hda_codec_cleanup(&hda_pvt->codec, hda_stream, substream); + + return 0; +} + +static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct hdac_hda_priv *hda_pvt; + struct snd_pcm_runtime *runtime = substream->runtime; + struct hdac_device *hdev; + struct hda_pcm_stream *hda_stream; + unsigned int format_val; + struct hda_pcm *pcm; + unsigned int stream; + int ret = 0; + + hda_pvt = snd_soc_component_get_drvdata(component); + hdev = &hda_pvt->codec.core; + pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai); + if (!pcm) + return -EINVAL; + + hda_stream = &pcm->stream[substream->stream]; + + format_val = snd_hdac_calc_stream_format(runtime->rate, + runtime->channels, + runtime->format, + hda_stream->maxbps, + 0); + if (!format_val) { + dev_err(&hdev->dev, + "invalid format_val, rate=%d, ch=%d, format=%d\n", + runtime->rate, runtime->channels, runtime->format); + return -EINVAL; + } + + stream = hda_pvt->pcm[dai->id].stream_tag[substream->stream]; + + ret = snd_hda_codec_prepare(&hda_pvt->codec, hda_stream, + stream, format_val, substream); + if (ret < 0) + dev_err(&hdev->dev, "codec prepare failed %d\n", ret); + + return ret; +} + +static int hdac_hda_dai_open(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct hdac_hda_priv *hda_pvt; + struct hda_pcm_stream *hda_stream; + struct hda_pcm *pcm; + int ret; + + hda_pvt = snd_soc_component_get_drvdata(component); + pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai); + if (!pcm) + return -EINVAL; + + snd_hda_codec_pcm_get(pcm); + + hda_stream = &pcm->stream[substream->stream]; + + ret = hda_stream->ops.open(hda_stream, &hda_pvt->codec, substream); + if (ret < 0) + snd_hda_codec_pcm_put(pcm); + + return ret; +} + +static void hdac_hda_dai_close(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct hdac_hda_priv *hda_pvt; + struct hda_pcm_stream *hda_stream; + struct hda_pcm *pcm; + + hda_pvt = snd_soc_component_get_drvdata(component); + pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai); + if (!pcm) + return; + + hda_stream = &pcm->stream[substream->stream]; + + hda_stream->ops.close(hda_stream, &hda_pvt->codec, substream); + + snd_hda_codec_pcm_put(pcm); +} + +static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt, + struct snd_soc_dai *dai) +{ + struct hda_codec *hcodec = &hda_pvt->codec; + struct hda_pcm *cpcm; + const char *pcm_name; + + switch (dai->id) { + case HDAC_ANALOG_DAI_ID: + pcm_name = "Analog"; + break; + case HDAC_DIGITAL_DAI_ID: + pcm_name = "Digital"; + break; + case HDAC_ALT_ANALOG_DAI_ID: + pcm_name = "Alt Analog"; + break; + default: + dev_err(&hcodec->core.dev, "invalid dai id %d\n", dai->id); + return NULL; + } + + list_for_each_entry(cpcm, &hcodec->pcm_list_head, list) { + if (strpbrk(cpcm->name, pcm_name)) + return cpcm; + } + + dev_err(&hcodec->core.dev, "didn't find PCM for DAI %s\n", dai->name); + return NULL; +} + +static int hdac_hda_codec_probe(struct snd_soc_component *component) +{ + struct hdac_hda_priv *hda_pvt = + snd_soc_component_get_drvdata(component); + struct snd_soc_dapm_context *dapm = + snd_soc_component_get_dapm(component); + struct hdac_device *hdev = &hda_pvt->codec.core; + struct hda_codec *hcodec = &hda_pvt->codec; + struct hdac_ext_link *hlink; + hda_codec_patch_t patch; + int ret; + + hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev)); + if (!hlink) { + dev_err(&hdev->dev, "hdac link not found\n"); + return -EIO; + } + + snd_hdac_ext_bus_link_get(hdev->bus, hlink); + + ret = snd_hda_codec_device_new(hcodec->bus, component->card->snd_card, + hdev->addr, hcodec); + if (ret < 0) { + dev_err(&hdev->dev, "failed to create hda codec %d\n", ret); + goto error_no_pm; + } + + /* + * snd_hda_codec_device_new decrements the usage count so call get pm + * else the device will be powered off + */ + pm_runtime_get_noresume(&hdev->dev); + + hcodec->bus->card = dapm->card->snd_card; + + ret = snd_hda_codec_set_name(hcodec, hcodec->preset->name); + if (ret < 0) { + dev_err(&hdev->dev, "name failed %s\n", hcodec->preset->name); + goto error; + } + + ret = snd_hdac_regmap_init(&hcodec->core); + if (ret < 0) { + dev_err(&hdev->dev, "regmap init failed\n"); + goto error; + } + + patch = (hda_codec_patch_t)hcodec->preset->driver_data; + if (patch) { + ret = patch(hcodec); + if (ret < 0) { + dev_err(&hdev->dev, "patch failed %d\n", ret); + goto error; + } + } else { + dev_dbg(&hdev->dev, "no patch file found\n"); + } + + ret = snd_hda_codec_parse_pcms(hcodec); + if (ret < 0) { + dev_err(&hdev->dev, "unable to map pcms to dai %d\n", ret); + goto error; + } + + ret = snd_hda_codec_build_controls(hcodec); + if (ret < 0) { + dev_err(&hdev->dev, "unable to create controls %d\n", ret); + goto error; + } + + hcodec->core.lazy_cache = true; + + /* + * hdac_device core already sets the state to active and calls + * get_noresume. So enable runtime and set the device to suspend. + * pm_runtime_enable is also called during codec registeration + */ + pm_runtime_put(&hdev->dev); + pm_runtime_suspend(&hdev->dev); + + return 0; + +error: + pm_runtime_put(&hdev->dev); +error_no_pm: + snd_hdac_ext_bus_link_put(hdev->bus, hlink); + return ret; +} + +static void hdac_hda_codec_remove(struct snd_soc_component *component) +{ + struct hdac_hda_priv *hda_pvt = + snd_soc_component_get_drvdata(component); + struct hdac_device *hdev = &hda_pvt->codec.core; + struct hdac_ext_link *hlink = NULL; + + hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev)); + if (!hlink) { + dev_err(&hdev->dev, "hdac link not found\n"); + return; + } + + snd_hdac_ext_bus_link_put(hdev->bus, hlink); + pm_runtime_disable(&hdev->dev); +} + +static const struct snd_soc_dapm_route hdac_hda_dapm_routes[] = { + {"AIF1TX", NULL, "Codec Input Pin1"}, + {"AIF2TX", NULL, "Codec Input Pin2"}, + {"AIF3TX", NULL, "Codec Input Pin3"}, + + {"Codec Output Pin1", NULL, "AIF1RX"}, + {"Codec Output Pin2", NULL, "AIF2RX"}, + {"Codec Output Pin3", NULL, "AIF3RX"}, +}; + +static const struct snd_soc_dapm_widget hdac_hda_dapm_widgets[] = { + /* Audio Interface */ + SND_SOC_DAPM_AIF_IN("AIF1RX", "Analog Codec Playback", 0, + SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("AIF2RX", "Digital Codec Playback", 0, + SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("AIF3RX", "Alt Analog Codec Playback", 0, + SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_OUT("AIF1TX", "Analog Codec Capture", 0, + SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_OUT("AIF2TX", "Digital Codec Capture", 0, + SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_OUT("AIF3TX", "Alt Analog Codec Capture", 0, + SND_SOC_NOPM, 0, 0), + + /* Input Pins */ + SND_SOC_DAPM_INPUT("Codec Input Pin1"), + SND_SOC_DAPM_INPUT("Codec Input Pin2"), + SND_SOC_DAPM_INPUT("Codec Input Pin3"), + + /* Output Pins */ + SND_SOC_DAPM_OUTPUT("Codec Output Pin1"), + SND_SOC_DAPM_OUTPUT("Codec Output Pin2"), + SND_SOC_DAPM_OUTPUT("Codec Output Pin3"), +}; + +static const struct snd_soc_component_driver hdac_hda_codec = { + .probe = hdac_hda_codec_probe, + .remove = hdac_hda_codec_remove, + .idle_bias_on = false, + .dapm_widgets = hdac_hda_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(hdac_hda_dapm_widgets), + .dapm_routes = hdac_hda_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(hdac_hda_dapm_routes), +}; + +static int hdac_hda_dev_probe(struct hdac_device *hdev) +{ + struct hdac_ext_link *hlink; + struct hdac_hda_priv *hda_pvt; + int ret; + + /* hold the ref while we probe */ + hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev)); + if (!hlink) { + dev_err(&hdev->dev, "hdac link not found\n"); + return -EIO; + } + snd_hdac_ext_bus_link_get(hdev->bus, hlink); + + hda_pvt = hdac_to_hda_priv(hdev); + if (!hda_pvt) + return -ENOMEM; + + /* ASoC specific initialization */ + ret = snd_soc_register_component(&hdev->dev, + &hdac_hda_codec, hdac_hda_dais, + ARRAY_SIZE(hdac_hda_dais)); + if (ret < 0) { + dev_err(&hdev->dev, "failed to register HDA codec %d\n", ret); + return ret; + } + + dev_set_drvdata(&hdev->dev, hda_pvt); + snd_hdac_ext_bus_link_put(hdev->bus, hlink); + + return ret; +} + +static int hdac_hda_dev_remove(struct hdac_device *hdev) +{ + snd_soc_unregister_component(&hdev->dev); + return 0; +} + +static struct hdac_ext_bus_ops hdac_ops = { + .hdev_attach = hdac_hda_dev_probe, + .hdev_detach = hdac_hda_dev_remove, +}; + +struct hdac_ext_bus_ops *snd_soc_hdac_hda_get_ops(void) +{ + return &hdac_ops; +} +EXPORT_SYMBOL_GPL(snd_soc_hdac_hda_get_ops); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("ASoC Extensions for legacy HDA Drivers"); +MODULE_AUTHOR("Rakesh Ughreja"); diff --git a/sound/soc/codecs/hdac_hda.h b/sound/soc/codecs/hdac_hda.h new file mode 100644 index 000000000000..e444ef593360 --- /dev/null +++ b/sound/soc/codecs/hdac_hda.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright(c) 2015-18 Intel Corporation. + */ + +#ifndef __HDAC_HDA_H__ +#define __HDAC_HDA_H__ + +struct hdac_hda_pcm { + int stream_tag[2]; +}; + +struct hdac_hda_priv { + struct hda_codec codec; + struct hdac_hda_pcm pcm[2]; +}; + +#define hdac_to_hda_priv(_hdac) \ + container_of(_hdac, struct hdac_hda_priv, codec.core) +#define hdac_to_hda_codec(_hdac) container_of(_hdac, struct hda_codec, core) + +struct hdac_ext_bus_ops *snd_soc_hdac_hda_get_ops(void); + +#endif /* __HDAC_HDA_H__ */ diff --git a/sound/soc/intel/boards/Kconfig b/sound/soc/intel/boards/Kconfig index 0f0d57859555..88e4b4284738 100644 --- a/sound/soc/intel/boards/Kconfig +++ b/sound/soc/intel/boards/Kconfig @@ -283,6 +283,7 @@ config SND_SOC_INTEL_KBL_DA7219_MAX98357A_MACH config SND_SOC_INTEL_SKL_HDA_DSP_GENERIC_MACH tristate "SKL/KBL/BXT/APL with HDA Codecs" select SND_SOC_HDAC_HDMI + select SND_SOC_HDAC_HDA help This adds support for ASoC machine driver for Intel platforms SKL/KBL/BXT/APL with iDisp, HDA audio codecs. diff --git a/sound/soc/intel/boards/skl_hda_dsp_common.c b/sound/soc/intel/boards/skl_hda_dsp_common.c index f9917e0f2ba8..3fdbf239da74 100644 --- a/sound/soc/intel/boards/skl_hda_dsp_common.c +++ b/sound/soc/intel/boards/skl_hda_dsp_common.c @@ -69,6 +69,30 @@ struct snd_soc_dai_link skl_hda_be_dai_links[HDA_DSP_MAX_BE_DAI_LINKS] = { .dpcm_playback = 1, .no_pcm = 1, }, + { + .name = "Analog Playback and Capture", + .id = 4, + .cpu_dai_name = "Analog CPU DAI", + .codec_name = "ehdaudio0D0", + .codec_dai_name = "Analog Codec DAI", + .platform_name = "0000:00:1f.3", + .dpcm_playback = 1, + .dpcm_capture = 1, + .init = NULL, + .no_pcm = 1, + }, + { + .name = "Digital Playback and Capture", + .id = 5, + .cpu_dai_name = "Digital CPU DAI", + .codec_name = "ehdaudio0D0", + .codec_dai_name = "Digital Codec DAI", + .platform_name = "0000:00:1f.3", + .dpcm_playback = 1, + .dpcm_capture = 1, + .init = NULL, + .no_pcm = 1, + }, }; int skl_hda_hdmi_jack_init(struct snd_soc_card *card) diff --git a/sound/soc/intel/boards/skl_hda_dsp_common.h b/sound/soc/intel/boards/skl_hda_dsp_common.h index b6c79696bfba..87c50aff56cd 100644 --- a/sound/soc/intel/boards/skl_hda_dsp_common.h +++ b/sound/soc/intel/boards/skl_hda_dsp_common.h @@ -15,7 +15,7 @@ #include #include -#define HDA_DSP_MAX_BE_DAI_LINKS 3 +#define HDA_DSP_MAX_BE_DAI_LINKS 5 struct skl_hda_hdmi_pcm { struct list_head head; diff --git a/sound/soc/intel/boards/skl_hda_dsp_generic.c b/sound/soc/intel/boards/skl_hda_dsp_generic.c index 920bc2ce22aa..b213e9b47505 100644 --- a/sound/soc/intel/boards/skl_hda_dsp_generic.c +++ b/sound/soc/intel/boards/skl_hda_dsp_generic.c @@ -16,6 +16,15 @@ #include "../skylake/skl.h" #include "skl_hda_dsp_common.h" +static const struct snd_soc_dapm_widget skl_hda_widgets[] = { + SND_SOC_DAPM_HP("Analog Out", NULL), + SND_SOC_DAPM_MIC("Analog In", NULL), + SND_SOC_DAPM_HP("Alt Analog Out", NULL), + SND_SOC_DAPM_MIC("Alt Analog In", NULL), + SND_SOC_DAPM_SPK("Digital Out", NULL), + SND_SOC_DAPM_MIC("Digital In", NULL), +}; + static const struct snd_soc_dapm_route skl_hda_map[] = { { "hifi3", NULL, "iDisp3 Tx"}, { "iDisp3 Tx", NULL, "iDisp3_out"}, @@ -23,6 +32,29 @@ static const struct snd_soc_dapm_route skl_hda_map[] = { { "iDisp2 Tx", NULL, "iDisp2_out"}, { "hifi1", NULL, "iDisp1 Tx"}, { "iDisp1 Tx", NULL, "iDisp1_out"}, + + { "Analog Out", NULL, "Codec Output Pin1" }, + { "Digital Out", NULL, "Codec Output Pin2" }, + { "Alt Analog Out", NULL, "Codec Output Pin3" }, + + { "Codec Input Pin1", NULL, "Analog In" }, + { "Codec Input Pin2", NULL, "Digital In" }, + { "Codec Input Pin3", NULL, "Alt Analog In" }, + + /* CODEC BE connections */ + { "Analog Codec Playback", NULL, "Analog CPU Playback" }, + { "Analog CPU Playback", NULL, "codec0_out" }, + { "Digital Codec Playback", NULL, "Digital CPU Playback" }, + { "Digital CPU Playback", NULL, "codec1_out" }, + { "Alt Analog Codec Playback", NULL, "Alt Analog CPU Playback" }, + { "Alt Analog CPU Playback", NULL, "codec2_out" }, + + { "codec0_in", NULL, "Analog CPU Capture" }, + { "Analog CPU Capture", NULL, "Analog Codec Capture" }, + { "codec1_in", NULL, "Digital CPU Capture" }, + { "Digital CPU Capture", NULL, "Digital Codec Capture" }, + { "codec2_in", NULL, "Alt Analog CPU Capture" }, + { "Alt Analog CPU Capture", NULL, "Alt Analog Codec Capture" }, }; static int skl_hda_card_late_probe(struct snd_soc_card *card) @@ -57,6 +89,7 @@ static struct snd_soc_card hda_soc_card = { .name = "skl_hda_card", .owner = THIS_MODULE, .dai_link = skl_hda_be_dai_links, + .dapm_widgets = skl_hda_widgets, .dapm_routes = skl_hda_map, .add_dai_link = skl_hda_add_dai_link, .fully_routed = true, @@ -80,6 +113,11 @@ static int skl_hda_fill_card_info(struct skl_machine_pdata *pdata) if (codec_count == 1 && pdata->codec_mask & IDISP_CODEC_MASK) { num_links = IDISP_DAI_COUNT; num_route = IDISP_ROUTE_COUNT; + } else if (codec_count == 2 && codec_mask & IDISP_CODEC_MASK) { + num_links = ARRAY_SIZE(skl_hda_be_dai_links); + num_route = ARRAY_SIZE(skl_hda_map), + card->dapm_widgets = skl_hda_widgets; + card->num_dapm_widgets = ARRAY_SIZE(skl_hda_widgets); } else { return -EINVAL; } diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index 5f281d443a53..e7fd14daeb4f 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -37,6 +37,7 @@ #include "skl.h" #include "skl-sst-dsp.h" #include "skl-sst-ipc.h" +#include "../../../soc/codecs/hdac_hda.h" /* * initialize the PCI registers @@ -657,6 +658,24 @@ static void skl_clock_device_unregister(struct skl *skl) platform_device_unregister(skl->clk_dev); } +#define IDISP_INTEL_VENDOR_ID 0x80860000 + +/* + * load the legacy codec driver + */ +static void load_codec_module(struct hda_codec *codec) +{ +#ifdef MODULE + char modalias[MODULE_NAME_LEN]; + const char *mod = NULL; + + snd_hdac_codec_modalias(&codec->core, modalias, sizeof(modalias)); + mod = modalias; + dev_dbg(&codec->core.dev, "loading %s codec module\n", mod); + request_module(mod); +#endif +} + /* * Probe the given codec address */ @@ -666,7 +685,9 @@ static int probe_codec(struct hdac_bus *bus, int addr) (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID; unsigned int res = -1; struct skl *skl = bus_to_skl(bus); + struct hdac_hda_priv *hda_codec; struct hdac_device *hdev; + int err; mutex_lock(&bus->cmd_mutex); snd_hdac_bus_send_cmd(bus, cmd); @@ -676,11 +697,24 @@ static int probe_codec(struct hdac_bus *bus, int addr) return -EIO; dev_dbg(bus->dev, "codec #%d probed OK: %x\n", addr, res); - hdev = devm_kzalloc(&skl->pci->dev, sizeof(*hdev), GFP_KERNEL); - if (!hdev) + hda_codec = devm_kzalloc(&skl->pci->dev, sizeof(*hda_codec), + GFP_KERNEL); + if (!hda_codec) return -ENOMEM; - return snd_hdac_ext_bus_device_init(bus, addr, hdev); + hda_codec->codec.bus = skl_to_hbus(skl); + hdev = &hda_codec->codec.core; + + err = snd_hdac_ext_bus_device_init(bus, addr, hdev); + if (err < 0) + return err; + + /* use legacy bus only for HDA codecs, idisp uses ext bus */ + if ((res & 0xFFFF0000) != IDISP_INTEL_VENDOR_ID) { + hdev->type = HDA_DEV_LEGACY; + load_codec_module(&hda_codec->codec); + } + return 0; } /* Codec initialization */ @@ -815,6 +849,7 @@ static int skl_create(struct pci_dev *pci, const struct hdac_io_ops *io_ops, struct skl **rskl) { + struct hdac_ext_bus_ops *ext_ops = NULL; struct skl *skl; struct hdac_bus *bus; struct hda_bus *hbus; @@ -834,7 +869,11 @@ static int skl_create(struct pci_dev *pci, hbus = skl_to_hbus(skl); bus = skl_to_bus(skl); - snd_hdac_ext_bus_init(bus, &pci->dev, &bus_core_ops, io_ops, NULL); + +#if IS_ENABLED(CONFIG_SND_SOC_HDAC_HDA) + ext_ops = snd_soc_hdac_hda_get_ops(); +#endif + snd_hdac_ext_bus_init(bus, &pci->dev, &bus_core_ops, io_ops, ext_ops); bus->use_posbuf = 1; skl->pci = pci; INIT_WORK(&skl->probe_work, skl_probe_work); From b0f2d651299f0743818bdadcbe6a67d7869e0da1 Mon Sep 17 00:00:00 2001 From: Danny Smith Date: Tue, 21 Aug 2018 13:07:49 +0200 Subject: [PATCH 0267/1762] ASoC: adau17x1: Implemented safeload support Safeload support has been implemented which is used when updating for instance filter parameters using alsa controls. Without safeload support audio can become distorted during update. Signed-off-by: Danny Smith Signed-off-by: Robert Rosengren Acked-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- sound/soc/codecs/adau17x1.c | 77 ++++++++++++++++++++++++++++++++++++- 1 file changed, 75 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/adau17x1.c b/sound/soc/codecs/adau17x1.c index 57169b8ff14e..c0bc429249fa 100644 --- a/sound/soc/codecs/adau17x1.c +++ b/sound/soc/codecs/adau17x1.c @@ -21,11 +21,18 @@ #include #include #include +#include #include "sigmadsp.h" #include "adau17x1.h" #include "adau-utils.h" +#define ADAU17X1_SAFELOAD_TARGET_ADDRESS 0x0006 +#define ADAU17X1_SAFELOAD_TRIGGER 0x0007 +#define ADAU17X1_SAFELOAD_DATA 0x0001 +#define ADAU17X1_SAFELOAD_DATA_SIZE 20 +#define ADAU17X1_WORD_SIZE 4 + static const char * const adau17x1_capture_mixer_boost_text[] = { "Normal operation", "Boost Level 1", "Boost Level 2", "Boost Level 3", }; @@ -326,6 +333,17 @@ bool adau17x1_has_dsp(struct adau *adau) } EXPORT_SYMBOL_GPL(adau17x1_has_dsp); +static bool adau17x1_has_safeload(struct adau *adau) +{ + switch (adau->type) { + case ADAU1761: + case ADAU1781: + return true; + default: + return false; + } +} + static int adau17x1_set_dai_pll(struct snd_soc_dai *dai, int pll_id, int source, unsigned int freq_in, unsigned int freq_out) { @@ -957,6 +975,56 @@ int adau17x1_resume(struct snd_soc_component *component) } EXPORT_SYMBOL_GPL(adau17x1_resume); +static int adau17x1_safeload(struct sigmadsp *sigmadsp, unsigned int addr, + const uint8_t bytes[], size_t len) +{ + uint8_t buf[ADAU17X1_WORD_SIZE]; + uint8_t data[ADAU17X1_SAFELOAD_DATA_SIZE]; + unsigned int addr_offset; + unsigned int nbr_words; + int ret; + + /* write data to safeload addresses. Check if len is not a multiple of + * 4 bytes, if so we need to zero pad. + */ + nbr_words = len / ADAU17X1_WORD_SIZE; + if ((len - nbr_words * ADAU17X1_WORD_SIZE) == 0) { + ret = regmap_raw_write(sigmadsp->control_data, + ADAU17X1_SAFELOAD_DATA, bytes, len); + } else { + nbr_words++; + memset(data, 0, ADAU17X1_SAFELOAD_DATA_SIZE); + memcpy(data, bytes, len); + ret = regmap_raw_write(sigmadsp->control_data, + ADAU17X1_SAFELOAD_DATA, data, + nbr_words * ADAU17X1_WORD_SIZE); + } + + if (ret < 0) + return ret; + + /* Write target address, target address is offset by 1 */ + addr_offset = addr - 1; + put_unaligned_be32(addr_offset, buf); + ret = regmap_raw_write(sigmadsp->control_data, + ADAU17X1_SAFELOAD_TARGET_ADDRESS, buf, ADAU17X1_WORD_SIZE); + if (ret < 0) + return ret; + + /* write nbr of words to trigger address */ + put_unaligned_be32(nbr_words, buf); + ret = regmap_raw_write(sigmadsp->control_data, + ADAU17X1_SAFELOAD_TRIGGER, buf, ADAU17X1_WORD_SIZE); + if (ret < 0) + return ret; + + return 0; +} + +static const struct sigmadsp_ops adau17x1_sigmadsp_ops = { + .safeload = adau17x1_safeload, +}; + int adau17x1_probe(struct device *dev, struct regmap *regmap, enum adau17x1_type type, void (*switch_mode)(struct device *dev), const char *firmware_name) @@ -1002,8 +1070,13 @@ int adau17x1_probe(struct device *dev, struct regmap *regmap, dev_set_drvdata(dev, adau); if (firmware_name) { - adau->sigmadsp = devm_sigmadsp_init_regmap(dev, regmap, NULL, - firmware_name); + if (adau17x1_has_safeload(adau)) { + adau->sigmadsp = devm_sigmadsp_init_regmap(dev, regmap, + &adau17x1_sigmadsp_ops, firmware_name); + } else { + adau->sigmadsp = devm_sigmadsp_init_regmap(dev, regmap, + NULL, firmware_name); + } if (IS_ERR(adau->sigmadsp)) { dev_warn(dev, "Could not find firmware file: %ld\n", PTR_ERR(adau->sigmadsp)); From 818838e6bfa4ddc6c76703237028dcffb80d6496 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 21 Aug 2018 13:43:35 +0200 Subject: [PATCH 0268/1762] ASoC: rt5670: Add quirk for Thinkpad 8 tablet The Thinkpad 8 needs a quirk for jack-detect and the internal mic to work correctly. Signed-off-by: Hans de Goede Signed-off-by: Mark Brown --- sound/soc/codecs/rt5670.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/sound/soc/codecs/rt5670.c b/sound/soc/codecs/rt5670.c index 732ef928b25d..455fe7cff700 100644 --- a/sound/soc/codecs/rt5670.c +++ b/sound/soc/codecs/rt5670.c @@ -2875,6 +2875,18 @@ static const struct dmi_system_id dmi_platform_intel_quirks[] = { RT5670_DEV_GPIO | RT5670_JD_MODE1), }, + { + .callback = rt5670_quirk_cb, + .ident = "Lenovo Thinkpad Tablet 8", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad 8"), + }, + .driver_data = (unsigned long *)(RT5670_DMIC_EN | + RT5670_DMIC2_INR | + RT5670_DEV_GPIO | + RT5670_JD_MODE1), + }, { .callback = rt5670_quirk_cb, .ident = "Lenovo Thinkpad Tablet 10", From 2ca426a24dd75e775ece1466ae45e019f0035b8d Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 21 Aug 2018 13:43:36 +0200 Subject: [PATCH 0269/1762] ASoC: Intel: common: Add quirk for Thinkpad 8 tablet The Thinkpad 8 tablet uses 10EC5640 as ACPI HID, but it has a rt5670 codec add a quirk for this. Signed-off-by: Hans de Goede Signed-off-by: Mark Brown --- sound/soc/intel/common/soc-acpi-intel-byt-match.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/soc/intel/common/soc-acpi-intel-byt-match.c b/sound/soc/intel/common/soc-acpi-intel-byt-match.c index 4daa8a4f0c0c..097dc06377ba 100644 --- a/sound/soc/intel/common/soc-acpi-intel-byt-match.c +++ b/sound/soc/intel/common/soc-acpi-intel-byt-match.c @@ -30,6 +30,13 @@ static int byt_thinkpad10_quirk_cb(const struct dmi_system_id *id) static const struct dmi_system_id byt_table[] = { + { + .callback = byt_thinkpad10_quirk_cb, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad 8"), + }, + }, { .callback = byt_thinkpad10_quirk_cb, .matches = { From f8fc397e13107f925186ee742e9e8dfbfe9a3d03 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 21 Aug 2018 13:43:37 +0200 Subject: [PATCH 0270/1762] ASoC: Intel: cht-bsw-rt5672: Add key-mappings for the headset buttons Having the headset buttons send BTN_0, BTN_1 and BTN_2 events is not really useful. Add mappings to PLAYPAUSE VOLUME_UP and VOLUME_DOWN like we do in other Intel machine drivers. Signed-off-by: Hans de Goede Signed-off-by: Mark Brown --- sound/soc/intel/boards/cht_bsw_rt5672.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sound/soc/intel/boards/cht_bsw_rt5672.c b/sound/soc/intel/boards/cht_bsw_rt5672.c index e5aa13058dd7..e054318185ea 100644 --- a/sound/soc/intel/boards/cht_bsw_rt5672.c +++ b/sound/soc/intel/boards/cht_bsw_rt5672.c @@ -16,6 +16,7 @@ * General Public License for more details. */ +#include #include #include #include @@ -212,6 +213,10 @@ static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) if (ret) return ret; + snd_jack_set_key(ctx->headset.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); + snd_jack_set_key(ctx->headset.jack, SND_JACK_BTN_1, KEY_VOLUMEUP); + snd_jack_set_key(ctx->headset.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN); + rt5670_set_jack_detect(component, &ctx->headset); if (ctx->mclk) { /* From 6fbf9d8e2793b81dd5f8738999163582ce61dba7 Mon Sep 17 00:00:00 2001 From: Fabrizio Castro Date: Tue, 21 Aug 2018 17:42:28 +0100 Subject: [PATCH 0271/1762] ASoC: rsnd: Add r8a774a1 support Document RZ/G2M (R8A774A1) SoC bindings. Signed-off-by: Fabrizio Castro Reviewed-by: Biju Das Acked-by: Kuninori Morimoto Reviewed-by: Simon Horman Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/renesas,rsnd.txt | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt index 9e764270c36b..8083f0d8f263 100644 --- a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt +++ b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt @@ -340,10 +340,11 @@ Required properties: - compatible : "renesas,rcar_sound-", fallbacks "renesas,rcar_sound-gen1" if generation1, and "renesas,rcar_sound-gen2" if generation2 (or RZ/G1) - "renesas,rcar_sound-gen3" if generation3 + "renesas,rcar_sound-gen3" if generation3 (or RZ/G2) Examples with soctypes are: - "renesas,rcar_sound-r8a7743" (RZ/G1M) - "renesas,rcar_sound-r8a7745" (RZ/G1E) + - "renesas,rcar_sound-r8a774a1" (RZ/G2M) - "renesas,rcar_sound-r8a7778" (R-Car M1A) - "renesas,rcar_sound-r8a7779" (R-Car H1) - "renesas,rcar_sound-r8a7790" (R-Car H2) From 6ee47d4a8dacfa484d526c0475730568d979de24 Mon Sep 17 00:00:00 2001 From: Kirill Marinushkin Date: Tue, 21 Aug 2018 18:52:46 +0200 Subject: [PATCH 0272/1762] ASoC: pcm3060: Add codec driver This commit adds support for TI PCM3060 CODEC. The technical documentation is available at [1]. [1] http://ti.com/product/pcm3060 Signed-off-by: Kirill Marinushkin Cc: Mark Brown Cc: Liam Girdwood Cc: Jaroslav Kysela Cc: Takashi Iwai Cc: M R Swami Reddy Cc: Vishwas A Deshpande Cc: Kevin Cernekee Cc: Peter Ujfalusi Cc: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/pcm3060.txt | 17 + MAINTAINERS | 7 + sound/soc/codecs/Kconfig | 17 + sound/soc/codecs/Makefile | 6 + sound/soc/codecs/pcm3060-i2c.c | 61 ++++ sound/soc/codecs/pcm3060-spi.c | 60 ++++ sound/soc/codecs/pcm3060.c | 290 ++++++++++++++++++ sound/soc/codecs/pcm3060.h | 88 ++++++ 8 files changed, 546 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/pcm3060.txt create mode 100644 sound/soc/codecs/pcm3060-i2c.c create mode 100644 sound/soc/codecs/pcm3060-spi.c create mode 100644 sound/soc/codecs/pcm3060.c create mode 100644 sound/soc/codecs/pcm3060.h diff --git a/Documentation/devicetree/bindings/sound/pcm3060.txt b/Documentation/devicetree/bindings/sound/pcm3060.txt new file mode 100644 index 000000000000..90fcb8523099 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/pcm3060.txt @@ -0,0 +1,17 @@ +PCM3060 audio CODEC + +This driver supports both I2C and SPI. + +Required properties: + +- compatible: "ti,pcm3060" + +- reg : the I2C address of the device for I2C, the chip select + number for SPI. + +Examples: + + pcm3060: pcm3060@46 { + compatible = "ti,pcm3060"; + reg = <0x46>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index a5b256b25905..161b26e05732 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14597,6 +14597,13 @@ L: netdev@vger.kernel.org S: Maintained F: drivers/net/ethernet/ti/netcp* +TI PCM3060 ASoC CODEC DRIVER +M: Kirill Marinushkin +L: alsa-devel@alsa-project.org (moderated for non-subscribers) +S: Maintained +F: Documentation/devicetree/bindings/sound/pcm3060.txt +F: sound/soc/codecs/pcm3060* + TI TAS571X FAMILY ASoC CODEC DRIVER M: Kevin Cernekee L: alsa-devel@alsa-project.org (moderated for non-subscribers) diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index bf0b949eb7e8..adaf26e1989c 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -120,6 +120,8 @@ config SND_SOC_ALL_CODECS select SND_SOC_PCM186X_I2C if I2C select SND_SOC_PCM186X_SPI if SPI_MASTER select SND_SOC_PCM3008 + select SND_SOC_PCM3060_I2C if I2C + select SND_SOC_PCM3060_SPI if SPI_MASTER select SND_SOC_PCM3168A_I2C if I2C select SND_SOC_PCM3168A_SPI if SPI_MASTER select SND_SOC_PCM5102A @@ -737,6 +739,21 @@ config SND_SOC_PCM186X_SPI config SND_SOC_PCM3008 tristate +config SND_SOC_PCM3060 + tristate + +config SND_SOC_PCM3060_I2C + tristate "Texas Instruments PCM3060 CODEC - I2C" + depends on I2C + select SND_SOC_PCM3060 + select REGMAP_I2C + +config SND_SOC_PCM3060_SPI + tristate "Texas Instruments PCM3060 CODEC - SPI" + depends on SPI_MASTER + select SND_SOC_PCM3060 + select REGMAP_SPI + config SND_SOC_PCM3168A tristate diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 3046b33ca9d3..3d694c26192c 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -120,6 +120,9 @@ snd-soc-pcm186x-objs := pcm186x.o snd-soc-pcm186x-i2c-objs := pcm186x-i2c.o snd-soc-pcm186x-spi-objs := pcm186x-spi.o snd-soc-pcm3008-objs := pcm3008.o +snd-soc-pcm3060-objs := pcm3060.o +snd-soc-pcm3060-i2c-objs := pcm3060-i2c.o +snd-soc-pcm3060-spi-objs := pcm3060-spi.o snd-soc-pcm3168a-objs := pcm3168a.o snd-soc-pcm3168a-i2c-objs := pcm3168a-i2c.o snd-soc-pcm3168a-spi-objs := pcm3168a-spi.o @@ -381,6 +384,9 @@ obj-$(CONFIG_SND_SOC_PCM186X) += snd-soc-pcm186x.o obj-$(CONFIG_SND_SOC_PCM186X_I2C) += snd-soc-pcm186x-i2c.o obj-$(CONFIG_SND_SOC_PCM186X_SPI) += snd-soc-pcm186x-spi.o obj-$(CONFIG_SND_SOC_PCM3008) += snd-soc-pcm3008.o +obj-$(CONFIG_SND_SOC_PCM3060) += snd-soc-pcm3060.o +obj-$(CONFIG_SND_SOC_PCM3060_I2C) += snd-soc-pcm3060-i2c.o +obj-$(CONFIG_SND_SOC_PCM3060_SPI) += snd-soc-pcm3060-spi.o obj-$(CONFIG_SND_SOC_PCM3168A) += snd-soc-pcm3168a.o obj-$(CONFIG_SND_SOC_PCM3168A_I2C) += snd-soc-pcm3168a-i2c.o obj-$(CONFIG_SND_SOC_PCM3168A_SPI) += snd-soc-pcm3168a-spi.o diff --git a/sound/soc/codecs/pcm3060-i2c.c b/sound/soc/codecs/pcm3060-i2c.c new file mode 100644 index 000000000000..03d2b4323626 --- /dev/null +++ b/sound/soc/codecs/pcm3060-i2c.c @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * PCM3060 I2C driver + * + * Copyright (C) 2018 Kirill Marinushkin + */ + +#include +#include +#include + +#include "pcm3060.h" + +static int pcm3060_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct pcm3060_priv *priv; + + priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + i2c_set_clientdata(i2c, priv); + + priv->regmap = devm_regmap_init_i2c(i2c, &pcm3060_regmap); + if (IS_ERR(priv->regmap)) + return PTR_ERR(priv->regmap); + + return pcm3060_probe(&i2c->dev); +} + +static const struct i2c_device_id pcm3060_i2c_id[] = { + { .name = "pcm3060" }, + { }, +}; +MODULE_DEVICE_TABLE(i2c, pcm3060_i2c_id); + +#ifdef CONFIG_OF +static const struct of_device_id pcm3060_of_match[] = { + { .compatible = "ti,pcm3060" }, + { }, +}; +MODULE_DEVICE_TABLE(of, pcm3060_of_match); +#endif /* CONFIG_OF */ + +static struct i2c_driver pcm3060_i2c_driver = { + .driver = { + .name = "pcm3060", +#ifdef CONFIG_OF + .of_match_table = pcm3060_of_match, +#endif /* CONFIG_OF */ + }, + .id_table = pcm3060_i2c_id, + .probe = pcm3060_i2c_probe, +}; + +module_i2c_driver(pcm3060_i2c_driver); + +MODULE_DESCRIPTION("PCM3060 I2C driver"); +MODULE_AUTHOR("Kirill Marinushkin "); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/pcm3060-spi.c b/sound/soc/codecs/pcm3060-spi.c new file mode 100644 index 000000000000..8961e095ae73 --- /dev/null +++ b/sound/soc/codecs/pcm3060-spi.c @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * PCM3060 SPI driver + * + * Copyright (C) 2018 Kirill Marinushkin + */ + +#include +#include +#include + +#include "pcm3060.h" + +static int pcm3060_spi_probe(struct spi_device *spi) +{ + struct pcm3060_priv *priv; + + priv = devm_kzalloc(&spi->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + spi_set_drvdata(spi, priv); + + priv->regmap = devm_regmap_init_spi(spi, &pcm3060_regmap); + if (IS_ERR(priv->regmap)) + return PTR_ERR(priv->regmap); + + return pcm3060_probe(&spi->dev); +} + +static const struct spi_device_id pcm3060_spi_id[] = { + { .name = "pcm3060" }, + { }, +}; +MODULE_DEVICE_TABLE(spi, pcm3060_spi_id); + +#ifdef CONFIG_OF +static const struct of_device_id pcm3060_of_match[] = { + { .compatible = "ti,pcm3060" }, + { }, +}; +MODULE_DEVICE_TABLE(of, pcm3060_of_match); +#endif /* CONFIG_OF */ + +static struct spi_driver pcm3060_spi_driver = { + .driver = { + .name = "pcm3060", +#ifdef CONFIG_OF + .of_match_table = pcm3060_of_match, +#endif /* CONFIG_OF */ + }, + .id_table = pcm3060_spi_id, + .probe = pcm3060_spi_probe, +}; + +module_spi_driver(pcm3060_spi_driver); + +MODULE_DESCRIPTION("PCM3060 SPI driver"); +MODULE_AUTHOR("Kirill Marinushkin "); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/pcm3060.c b/sound/soc/codecs/pcm3060.c new file mode 100644 index 000000000000..ef7c627c9ac5 --- /dev/null +++ b/sound/soc/codecs/pcm3060.c @@ -0,0 +1,290 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * PCM3060 codec driver + * + * Copyright (C) 2018 Kirill Marinushkin + */ + +#include +#include +#include +#include + +#include "pcm3060.h" + +/* dai */ + +static int pcm3060_set_sysclk(struct snd_soc_dai *dai, int clk_id, + unsigned int freq, int dir) +{ + struct snd_soc_component *comp = dai->component; + struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp); + + if (dir != SND_SOC_CLOCK_IN) { + dev_err(comp->dev, "unsupported sysclock dir: %d\n", dir); + return -EINVAL; + } + + priv->dai[dai->id].sclk_freq = freq; + + return 0; +} + +static int pcm3060_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_component *comp = dai->component; + struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp); + unsigned int reg; + unsigned int val; + + if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) { + dev_err(comp->dev, "unsupported DAI polarity: 0x%x\n", fmt); + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + priv->dai[dai->id].is_master = true; + break; + case SND_SOC_DAIFMT_CBS_CFS: + priv->dai[dai->id].is_master = false; + break; + default: + dev_err(comp->dev, "unsupported DAI master mode: 0x%x\n", fmt); + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + val = PCM3060_REG_FMT_I2S; + break; + case SND_SOC_DAIFMT_RIGHT_J: + val = PCM3060_REG_FMT_RJ; + break; + case SND_SOC_DAIFMT_LEFT_J: + val = PCM3060_REG_FMT_LJ; + break; + default: + dev_err(comp->dev, "unsupported DAI format: 0x%x\n", fmt); + return -EINVAL; + } + + reg = (dai->id == PCM3060_DAI_ID_DAC ? PCM3060_REG67 : PCM3060_REG72); + + regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_FMT, val); + + return 0; +} + +static int pcm3060_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *comp = dai->component; + struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp); + unsigned int rate; + unsigned int ratio; + unsigned int reg; + unsigned int val; + + if (!priv->dai[dai->id].is_master) { + val = PCM3060_REG_MS_S; + goto val_ready; + } + + rate = params_rate(params); + if (!rate) { + dev_err(comp->dev, "rate is not configured\n"); + return -EINVAL; + } + + ratio = priv->dai[dai->id].sclk_freq / rate; + + switch (ratio) { + case 768: + val = PCM3060_REG_MS_M768; + break; + case 512: + val = PCM3060_REG_MS_M512; + break; + case 384: + val = PCM3060_REG_MS_M384; + break; + case 256: + val = PCM3060_REG_MS_M256; + break; + case 192: + val = PCM3060_REG_MS_M192; + break; + case 128: + val = PCM3060_REG_MS_M128; + break; + default: + dev_err(comp->dev, "unsupported ratio: %d\n", ratio); + return -EINVAL; + } + +val_ready: + reg = (dai->id == PCM3060_DAI_ID_DAC ? PCM3060_REG67 : PCM3060_REG72); + + regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_MS, val); + + return 0; +} + +static const struct snd_soc_dai_ops pcm3060_dai_ops = { + .set_sysclk = pcm3060_set_sysclk, + .set_fmt = pcm3060_set_fmt, + .hw_params = pcm3060_hw_params, +}; + +#define PCM3060_DAI_RATES_ADC (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 | \ + SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \ + SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) + +#define PCM3060_DAI_RATES_DAC (PCM3060_DAI_RATES_ADC | \ + SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000) + +static struct snd_soc_dai_driver pcm3060_dai[] = { + { + .name = "pcm3060-dac", + .id = PCM3060_DAI_ID_DAC, + .playback = { + .stream_name = "Playback", + .channels_min = 2, + .channels_max = 2, + .rates = PCM3060_DAI_RATES_DAC, + .formats = SNDRV_PCM_FMTBIT_S24_LE, + }, + .ops = &pcm3060_dai_ops, + }, + { + .name = "pcm3060-adc", + .id = PCM3060_DAI_ID_ADC, + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 2, + .rates = PCM3060_DAI_RATES_ADC, + .formats = SNDRV_PCM_FMTBIT_S24_LE, + }, + .ops = &pcm3060_dai_ops, + }, +}; + +/* dapm */ + +static DECLARE_TLV_DB_SCALE(pcm3060_dapm_tlv, -10050, 50, 1); + +static const struct snd_kcontrol_new pcm3060_dapm_controls[] = { + SOC_DOUBLE_R_RANGE_TLV("Master Playback Volume", + PCM3060_REG65, PCM3060_REG66, 0, + PCM3060_REG_AT2_MIN, PCM3060_REG_AT2_MAX, + 0, pcm3060_dapm_tlv), + SOC_DOUBLE("Master Playback Switch", PCM3060_REG68, + PCM3060_REG_SHIFT_MUT21, PCM3060_REG_SHIFT_MUT22, 1, 1), + + SOC_DOUBLE_R_RANGE_TLV("Master Capture Volume", + PCM3060_REG70, PCM3060_REG71, 0, + PCM3060_REG_AT1_MIN, PCM3060_REG_AT1_MAX, + 0, pcm3060_dapm_tlv), + SOC_DOUBLE("Master Capture Switch", PCM3060_REG73, + PCM3060_REG_SHIFT_MUT11, PCM3060_REG_SHIFT_MUT12, 1, 1), +}; + +static const struct snd_soc_dapm_widget pcm3060_dapm_widgets[] = { + SND_SOC_DAPM_OUTPUT("OUTL+"), + SND_SOC_DAPM_OUTPUT("OUTR+"), + SND_SOC_DAPM_OUTPUT("OUTL-"), + SND_SOC_DAPM_OUTPUT("OUTR-"), + + SND_SOC_DAPM_INPUT("INL"), + SND_SOC_DAPM_INPUT("INR"), +}; + +static const struct snd_soc_dapm_route pcm3060_dapm_map[] = { + { "OUTL+", NULL, "Playback" }, + { "OUTR+", NULL, "Playback" }, + { "OUTL-", NULL, "Playback" }, + { "OUTR-", NULL, "Playback" }, + + { "Capture", NULL, "INL" }, + { "Capture", NULL, "INR" }, +}; + +/* soc component */ + +static const struct snd_soc_component_driver pcm3060_soc_comp_driver = { + .controls = pcm3060_dapm_controls, + .num_controls = ARRAY_SIZE(pcm3060_dapm_controls), + .dapm_widgets = pcm3060_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(pcm3060_dapm_widgets), + .dapm_routes = pcm3060_dapm_map, + .num_dapm_routes = ARRAY_SIZE(pcm3060_dapm_map), +}; + +/* regmap */ + +static bool pcm3060_reg_writeable(struct device *dev, unsigned int reg) +{ + return (reg >= PCM3060_REG64); +} + +static bool pcm3060_reg_readable(struct device *dev, unsigned int reg) +{ + return (reg >= PCM3060_REG64); +} + +static bool pcm3060_reg_volatile(struct device *dev, unsigned int reg) +{ + /* PCM3060_REG64 is volatile */ + return (reg == PCM3060_REG64); +} + +static const struct reg_default pcm3060_reg_defaults[] = { + { PCM3060_REG64, 0xF0 }, + { PCM3060_REG65, 0xFF }, + { PCM3060_REG66, 0xFF }, + { PCM3060_REG67, 0x00 }, + { PCM3060_REG68, 0x00 }, + { PCM3060_REG69, 0x00 }, + { PCM3060_REG70, 0xD7 }, + { PCM3060_REG71, 0xD7 }, + { PCM3060_REG72, 0x00 }, + { PCM3060_REG73, 0x00 }, +}; + +const struct regmap_config pcm3060_regmap = { + .reg_bits = 8, + .val_bits = 8, + .writeable_reg = pcm3060_reg_writeable, + .readable_reg = pcm3060_reg_readable, + .volatile_reg = pcm3060_reg_volatile, + .max_register = PCM3060_REG73, + .reg_defaults = pcm3060_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(pcm3060_reg_defaults), + .cache_type = REGCACHE_RBTREE, +}; +EXPORT_SYMBOL(pcm3060_regmap); + +/* device */ + +int pcm3060_probe(struct device *dev) +{ + int rc; + + rc = devm_snd_soc_register_component(dev, &pcm3060_soc_comp_driver, + pcm3060_dai, + ARRAY_SIZE(pcm3060_dai)); + if (rc) { + dev_err(dev, "failed to register component, rc=%d\n", rc); + return rc; + } + + return 0; +} +EXPORT_SYMBOL(pcm3060_probe); + +MODULE_DESCRIPTION("PCM3060 codec driver"); +MODULE_AUTHOR("Kirill Marinushkin "); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/pcm3060.h b/sound/soc/codecs/pcm3060.h new file mode 100644 index 000000000000..fd89a68aa8a7 --- /dev/null +++ b/sound/soc/codecs/pcm3060.h @@ -0,0 +1,88 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * PCM3060 codec driver + * + * Copyright (C) 2018 Kirill Marinushkin + */ + +#ifndef _SND_SOC_PCM3060_H +#define _SND_SOC_PCM3060_H + +#include +#include + +extern const struct regmap_config pcm3060_regmap; + +#define PCM3060_DAI_ID_DAC 0 +#define PCM3060_DAI_ID_ADC 1 +#define PCM3060_DAI_IDS_NUM 2 + +struct pcm3060_priv_dai { + bool is_master; + unsigned int sclk_freq; +}; + +struct pcm3060_priv { + struct regmap *regmap; + struct pcm3060_priv_dai dai[PCM3060_DAI_IDS_NUM]; +}; + +int pcm3060_probe(struct device *dev); +int pcm3060_remove(struct device *dev); + +/* registers */ + +#define PCM3060_REG64 0x40 +#define PCM3060_REG_MRST 0x80 +#define PCM3060_REG_SRST 0x40 +#define PCM3060_REG_ADPSV 0x20 +#define PCM3060_REG_DAPSV 0x10 +#define PCM3060_REG_SE 0x01 + +#define PCM3060_REG65 0x41 +#define PCM3060_REG66 0x42 +#define PCM3060_REG_AT2_MIN 0x36 +#define PCM3060_REG_AT2_MAX 0xFF + +#define PCM3060_REG67 0x43 +#define PCM3060_REG72 0x48 +#define PCM3060_REG_CSEL 0x80 +#define PCM3060_REG_MASK_MS 0x70 +#define PCM3060_REG_MS_S 0x00 +#define PCM3060_REG_MS_M768 (0x01 << 4) +#define PCM3060_REG_MS_M512 (0x02 << 4) +#define PCM3060_REG_MS_M384 (0x03 << 4) +#define PCM3060_REG_MS_M256 (0x04 << 4) +#define PCM3060_REG_MS_M192 (0x05 << 4) +#define PCM3060_REG_MS_M128 (0x06 << 4) +#define PCM3060_REG_MASK_FMT 0x03 +#define PCM3060_REG_FMT_I2S 0x00 +#define PCM3060_REG_FMT_LJ 0x01 +#define PCM3060_REG_FMT_RJ 0x02 + +#define PCM3060_REG68 0x44 +#define PCM3060_REG_OVER 0x40 +#define PCM3060_REG_DREV2 0x04 +#define PCM3060_REG_SHIFT_MUT21 0x00 +#define PCM3060_REG_SHIFT_MUT22 0x01 + +#define PCM3060_REG69 0x45 +#define PCM3060_REG_FLT 0x80 +#define PCM3060_REG_MASK_DMF 0x60 +#define PCM3060_REG_DMC 0x10 +#define PCM3060_REG_ZREV 0x02 +#define PCM3060_REG_AZRO 0x01 + +#define PCM3060_REG70 0x46 +#define PCM3060_REG71 0x47 +#define PCM3060_REG_AT1_MIN 0x0E +#define PCM3060_REG_AT1_MAX 0xFF + +#define PCM3060_REG73 0x49 +#define PCM3060_REG_ZCDD 0x10 +#define PCM3060_REG_BYP 0x08 +#define PCM3060_REG_DREV1 0x04 +#define PCM3060_REG_SHIFT_MUT11 0x00 +#define PCM3060_REG_SHIFT_MUT12 0x01 + +#endif /* _SND_SOC_PCM3060_H */ From 04b2d03a75652bda989de1595048f0501dc0c0a0 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 21 Aug 2018 11:53:03 +0200 Subject: [PATCH 0273/1762] spi: Fix double IDR allocation with DT aliases If the SPI bus number is provided by a DT alias, idr_alloc() is called twice, leading to: WARNING: CPU: 1 PID: 1 at drivers/spi/spi.c:2179 spi_register_controller+0x11c/0x5d8 couldn't get idr Fix this by moving the handling of fixed SPI bus numbers up, before the DT handling code fills in ctlr->bus_num. Fixes: 1a4327fbf4554d5b ("spi: fix IDR collision on systems with both fixed and dynamic SPI bus numbers") Signed-off-by: Geert Uytterhoeven Tested-by: Fabio Estevam Signed-off-by: Mark Brown --- drivers/spi/spi.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index a00d006d4c3a..9da0bc5a036c 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -2143,8 +2143,17 @@ int spi_register_controller(struct spi_controller *ctlr) */ if (ctlr->num_chipselect == 0) return -EINVAL; - /* allocate dynamic bus number using Linux idr */ - if ((ctlr->bus_num < 0) && ctlr->dev.of_node) { + if (ctlr->bus_num >= 0) { + /* devices with a fixed bus num must check-in with the num */ + mutex_lock(&board_lock); + id = idr_alloc(&spi_master_idr, ctlr, ctlr->bus_num, + ctlr->bus_num + 1, GFP_KERNEL); + mutex_unlock(&board_lock); + if (WARN(id < 0, "couldn't get idr")) + return id == -ENOSPC ? -EBUSY : id; + ctlr->bus_num = id; + } else if (ctlr->dev.of_node) { + /* allocate dynamic bus number using Linux idr */ id = of_alias_get_id(ctlr->dev.of_node, "spi"); if (id >= 0) { ctlr->bus_num = id; @@ -2170,15 +2179,6 @@ int spi_register_controller(struct spi_controller *ctlr) if (WARN(id < 0, "couldn't get idr")) return id; ctlr->bus_num = id; - } else { - /* devices with a fixed bus num must check-in with the num */ - mutex_lock(&board_lock); - id = idr_alloc(&spi_master_idr, ctlr, ctlr->bus_num, - ctlr->bus_num + 1, GFP_KERNEL); - mutex_unlock(&board_lock); - if (WARN(id < 0, "couldn't get idr")) - return id == -ENOSPC ? -EBUSY : id; - ctlr->bus_num = id; } INIT_LIST_HEAD(&ctlr->queue); spin_lock_init(&ctlr->queue_lock); From 5b2695fd4b20f9b8320e9ecbfc232842bacf5b6f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Thu, 19 Jul 2018 21:21:57 +0300 Subject: [PATCH 0274/1762] drm/i915: Fix glk/cnl display w/a #1175 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The workaround was supposed to look at the plane destination coordinates. Currently it's looking at some mixture of src and dst coordinates that doesn't make sense. Fix it up. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20180719182214.4323-2-ville.syrjala@linux.intel.com Fixes: 394676f05bee (drm/i915: Add WA for planes ending close to left screen edge) Reviewed-by: Imre Deak (cherry picked from commit b1f1c2c11fc6c6cd3e361061e30f9b2839897b28) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/intel_display.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index ed3fa1c8a983..4a3c8ee9a973 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2988,6 +2988,7 @@ static int skl_check_main_surface(const struct intel_crtc_state *crtc_state, int w = drm_rect_width(&plane_state->base.src) >> 16; int h = drm_rect_height(&plane_state->base.src) >> 16; int dst_x = plane_state->base.dst.x1; + int dst_w = drm_rect_width(&plane_state->base.dst); int pipe_src_w = crtc_state->pipe_src_w; int max_width = skl_max_plane_width(fb, 0, rotation); int max_height = 4096; @@ -3009,10 +3010,10 @@ static int skl_check_main_surface(const struct intel_crtc_state *crtc_state, * screen may cause FIFO underflow and display corruption. */ if ((IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) && - (dst_x + w < 4 || dst_x > pipe_src_w - 4)) { + (dst_x + dst_w < 4 || dst_x > pipe_src_w - 4)) { DRM_DEBUG_KMS("requested plane X %s position %d invalid (valid range %d-%d)\n", - dst_x + w < 4 ? "end" : "start", - dst_x + w < 4 ? dst_x + w : dst_x, + dst_x + dst_w < 4 ? "end" : "start", + dst_x + dst_w < 4 ? dst_x + dst_w : dst_x, 4, pipe_src_w - 4); return -ERANGE; } From 1b1b1162745e5f9e5c6c095afc8081df3edabc50 Mon Sep 17 00:00:00 2001 From: Rodrigo Vivi Date: Thu, 23 Aug 2018 13:51:36 -0700 Subject: [PATCH 0275/1762] drm/i915: Free write_buf that we allocated with kzalloc. We use kzalloc to allocate the write_buf that we use for i2c transfer on hdcp write. But it seems that we are forgetting to free the memory that is not needed after i2c transfer is completed. Reported-by: Brian J Wood Fixes: 2320175feb74 ("drm/i915: Implement HDCP for HDMI") Cc: Ramalingam C Cc: Sean Paul Cc: Jani Nikula Cc: Rodrigo Vivi Cc: # v4.17+ Signed-off-by: Rodrigo Vivi Reviewed-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20180823205136.31310-1-rodrigo.vivi@intel.com (cherry picked from commit 62d3a8deaa10b8346d979d0dabde56c33b742afa) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/intel_hdmi.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index a9076402dcb0..192972a7d287 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -943,8 +943,12 @@ static int intel_hdmi_hdcp_write(struct intel_digital_port *intel_dig_port, ret = i2c_transfer(adapter, &msg, 1); if (ret == 1) - return 0; - return ret >= 0 ? -EIO : ret; + ret = 0; + else if (ret >= 0) + ret = -EIO; + + kfree(write_buf); + return ret; } static From c736cbd3a668c3befd3ce08e0fbccac302fbecac Mon Sep 17 00:00:00 2001 From: Akshu Agrawal Date: Tue, 21 Aug 2018 12:25:05 +0530 Subject: [PATCH 0276/1762] ASoC: AMD: Set constraints for DMIC and MAX98357a codec We support dual channel, 48Khz. This constraint was set only for da7219. It is being extended to DMIC and MAX98357a. Signed-off-by: Akshu Agrawal Reviewed-by: Daniel Kurtz Signed-off-by: Mark Brown --- sound/soc/amd/acp-da7219-max98357a.c | 33 ++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/sound/soc/amd/acp-da7219-max98357a.c b/sound/soc/amd/acp-da7219-max98357a.c index 8e3275a96a82..95c5701e2a30 100644 --- a/sound/soc/amd/acp-da7219-max98357a.c +++ b/sound/soc/amd/acp-da7219-max98357a.c @@ -162,10 +162,21 @@ static void cz_da7219_shutdown(struct snd_pcm_substream *substream) static int cz_max_startup(struct snd_pcm_substream *substream) { + struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_card *card = rtd->card; struct acp_platform_info *machine = snd_soc_card_get_drvdata(card); + /* + * On this platform for PCM device we support stereo + */ + + runtime->hw.channels_max = DUAL_CHANNEL; + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_channels); + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + &constraints_rates); + machine->i2s_instance = I2S_BT_INSTANCE; return da7219_clk_enable(substream); } @@ -177,20 +188,42 @@ static void cz_max_shutdown(struct snd_pcm_substream *substream) static int cz_dmic0_startup(struct snd_pcm_substream *substream) { + struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_card *card = rtd->card; struct acp_platform_info *machine = snd_soc_card_get_drvdata(card); + /* + * On this platform for PCM device we support stereo + */ + + runtime->hw.channels_max = DUAL_CHANNEL; + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_channels); + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + &constraints_rates); + machine->i2s_instance = I2S_BT_INSTANCE; return da7219_clk_enable(substream); } static int cz_dmic1_startup(struct snd_pcm_substream *substream) { + struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_card *card = rtd->card; struct acp_platform_info *machine = snd_soc_card_get_drvdata(card); + /* + * On this platform for PCM device we support stereo + */ + + runtime->hw.channels_max = DUAL_CHANNEL; + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_channels); + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + &constraints_rates); + machine->i2s_instance = I2S_SP_INSTANCE; machine->capture_channel = CAP_CHANNEL0; return da7219_clk_enable(substream); From a1b1e9880f0c2754a5ac416a546d9f295f72eabc Mon Sep 17 00:00:00 2001 From: Akshu Agrawal Date: Tue, 21 Aug 2018 12:29:43 +0530 Subject: [PATCH 0277/1762] ASoC: AMD: Change MCLK to 48Mhz 25Mhz MCLK which was earlier used was of spread type. Thus, we were not getting accurate rate. The 48Mhz system clk is of non-spread type and we are changing to it to get accurate rate. Signed-off-by: Akshu Agrawal Reviewed-by: Daniel Kurtz Signed-off-by: Mark Brown --- sound/soc/amd/acp-da7219-max98357a.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/amd/acp-da7219-max98357a.c b/sound/soc/amd/acp-da7219-max98357a.c index 95c5701e2a30..3879cccbd2c0 100644 --- a/sound/soc/amd/acp-da7219-max98357a.c +++ b/sound/soc/amd/acp-da7219-max98357a.c @@ -42,7 +42,7 @@ #include "../codecs/da7219.h" #include "../codecs/da7219-aad.h" -#define CZ_PLAT_CLK 25000000 +#define CZ_PLAT_CLK 48000000 #define DUAL_CHANNEL 2 static struct snd_soc_jack cz_jack; From 1b3b7981524af2b6dcdf78cfa6dca89522c13ade Mon Sep 17 00:00:00 2001 From: Peter Rosin Date: Mon, 20 Aug 2018 12:14:09 +0200 Subject: [PATCH 0278/1762] ASoC: atmel: tse850: switch to SPDX license identifier Convert to // comments in the leading comment, drop the boilerplate license text and use the correct MODULE_LICENSE. Signed-off-by: Peter Rosin Signed-off-by: Mark Brown --- sound/soc/atmel/tse850-pcm5142.c | 78 +++++++++++++++----------------- 1 file changed, 36 insertions(+), 42 deletions(-) diff --git a/sound/soc/atmel/tse850-pcm5142.c b/sound/soc/atmel/tse850-pcm5142.c index 3a1393283156..214adcad5419 100644 --- a/sound/soc/atmel/tse850-pcm5142.c +++ b/sound/soc/atmel/tse850-pcm5142.c @@ -1,44 +1,38 @@ -/* - * TSE-850 audio - ASoC driver for the Axentia TSE-850 with a PCM5142 codec - * - * Copyright (C) 2016 Axentia Technologies AB - * - * Author: Peter Rosin - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* - * loop1 relays - * IN1 +---o +------------+ o---+ OUT1 - * \ / - * + + - * | / | - * +--o +--. | - * | add | | - * | V | - * | .---. | - * DAC +----------->|Sum|---+ - * | '---' | - * | | - * + + - * - * IN2 +---o--+------------+--o---+ OUT2 - * loop2 relays - * - * The 'loop1' gpio pin controlls two relays, which are either in loop - * position, meaning that input and output are directly connected, or - * they are in mixer position, meaning that the signal is passed through - * the 'Sum' mixer. Similarly for 'loop2'. - * - * In the above, the 'loop1' relays are inactive, thus feeding IN1 to the - * mixer (if 'add' is active) and feeding the mixer output to OUT1. The - * 'loop2' relays are active, short-cutting the TSE-850 from channel 2. - * IN1, IN2, OUT1 and OUT2 are TSE-850 connectors and DAC is the PCB name - * of the (filtered) output from the PCM5142 codec. - */ +// SPDX-License-Identifier: GPL-2.0 +// +// TSE-850 audio - ASoC driver for the Axentia TSE-850 with a PCM5142 codec +// +// Copyright (C) 2016 Axentia Technologies AB +// +// Author: Peter Rosin +// +// loop1 relays +// IN1 +---o +------------+ o---+ OUT1 +// \ / +// + + +// | / | +// +--o +--. | +// | add | | +// | V | +// | .---. | +// DAC +----------->|Sum|---+ +// | '---' | +// | | +// + + +// +// IN2 +---o--+------------+--o---+ OUT2 +// loop2 relays +// +// The 'loop1' gpio pin controlls two relays, which are either in loop +// position, meaning that input and output are directly connected, or +// they are in mixer position, meaning that the signal is passed through +// the 'Sum' mixer. Similarly for 'loop2'. +// +// In the above, the 'loop1' relays are inactive, thus feeding IN1 to the +// mixer (if 'add' is active) and feeding the mixer output to OUT1. The +// 'loop2' relays are active, short-cutting the TSE-850 from channel 2. +// IN1, IN2, OUT1 and OUT2 are TSE-850 connectors and DAC is the PCB name +// of the (filtered) output from the PCM5142 codec. #include #include @@ -452,4 +446,4 @@ module_platform_driver(tse850_driver); /* Module information */ MODULE_AUTHOR("Peter Rosin "); MODULE_DESCRIPTION("ALSA SoC driver for TSE-850 with PCM5142 codec"); -MODULE_LICENSE("GPL"); +MODULE_LICENSE("GPL v2"); From 5223c9c1cbfc0cd4d0a1b50758e0949af3290fa1 Mon Sep 17 00:00:00 2001 From: Angelo Dureghello Date: Sat, 18 Aug 2018 01:51:58 +0200 Subject: [PATCH 0279/1762] spi: spi-fsl-dspi: fix broken DSPI_EOQ_MODE This patch fixes the dspi_eoq_write function used by the ColdFire mcf5441x family. The 16 bit cmd part must be re-set at each data transfer. Also, now that fifo_size variables are used for eoq_read/write, a proper fifo size must be set (16 slots for the ColdFire dspi module version). Signed-off-by: Angelo Dureghello Acked-by: Esben Haabendal Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/spi/spi-fsl-dspi.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 7cb3ab0a35a0..3082e72e4f6c 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -30,7 +30,11 @@ #define DRIVER_NAME "fsl-dspi" +#ifdef CONFIG_M5441x +#define DSPI_FIFO_SIZE 16 +#else #define DSPI_FIFO_SIZE 4 +#endif #define DSPI_DMA_BUFSIZE (DSPI_FIFO_SIZE * 1024) #define SPI_MCR 0x00 @@ -623,9 +627,11 @@ static void dspi_tcfq_read(struct fsl_dspi *dspi) static void dspi_eoq_write(struct fsl_dspi *dspi) { int fifo_size = DSPI_FIFO_SIZE; + u16 xfer_cmd = dspi->tx_cmd; /* Fill TX FIFO with as many transfers as possible */ while (dspi->len && fifo_size--) { + dspi->tx_cmd = xfer_cmd; /* Request EOQF for last transfer in FIFO */ if (dspi->len == dspi->bytes_per_word || fifo_size == 0) dspi->tx_cmd |= SPI_PUSHR_CMD_EOQ; From 11f65ad111fa29de2d11929f773bf1e553d5b7c4 Mon Sep 17 00:00:00 2001 From: Palmer Dabbelt Date: Mon, 20 Aug 2018 15:47:57 -0700 Subject: [PATCH 0280/1762] dt-bindings: riscv,cpu-intc: Cleanups from a missed review I managed to miss one of Rob's code reviews on the mailing list . The patch has already been merged, so I'm submitting a fixup. Sorry! Fixes: b67bc7cb4088 ("dt-bindings: interrupt-controller: RISC-V local interrupt controller") Cc: Rob Herring Cc: Christoph Hellwig Cc: Karsten Merker Signed-off-by: Palmer Dabbelt --- .../interrupt-controller/riscv,cpu-intc.txt | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/interrupt-controller/riscv,cpu-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/riscv,cpu-intc.txt index b0a8af51c388..265b223cd978 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/riscv,cpu-intc.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/riscv,cpu-intc.txt @@ -11,7 +11,7 @@ The RISC-V supervisor ISA manual specifies three interrupt sources that are attached to every HLIC: software interrupts, the timer interrupt, and external interrupts. Software interrupts are used to send IPIs between cores. The timer interrupt comes from an architecturally mandated real-time timer that is -controller via Supervisor Binary Interface (SBI) calls and CSR reads. External +controlled via Supervisor Binary Interface (SBI) calls and CSR reads. External interrupts connect all other device interrupts to the HLIC, which are routed via the platform-level interrupt controller (PLIC). @@ -25,7 +25,15 @@ in the system. Required properties: - compatible : "riscv,cpu-intc" -- #interrupt-cells : should be <1> +- #interrupt-cells : should be <1>. The interrupt sources are defined by the + RISC-V supervisor ISA manual, with only the following three interrupts being + defined for supervisor mode: + - Source 1 is the supervisor software interrupt, which can be sent by an SBI + call and is reserved for use by software. + - Source 5 is the supervisor timer interrupt, which can be configured by + SBI calls and implements a one-shot timer. + - Source 9 is the supervisor external interrupt, which chains to all other + device interrupts. - interrupt-controller : Identifies the node as an interrupt controller Furthermore, this interrupt-controller MUST be embedded inside the cpu @@ -38,7 +46,7 @@ An example device tree entry for a HLIC is show below. ... cpu1-intc: interrupt-controller { #interrupt-cells = <1>; - compatible = "riscv,cpu-intc", "sifive,fu540-c000-cpu-intc"; + compatible = "sifive,fu540-c000-cpu-intc", "riscv,cpu-intc"; interrupt-controller; }; }; From 0ce5671c4450527f90d2bfb31302f78580587983 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 24 Aug 2018 11:22:55 -0700 Subject: [PATCH 0281/1762] riscv: tlb: Provide definition of tlb_flush() before including tlb.h As of commit fd1102f0aade ("mm: mmu_notifier fix for tlb_end_vma"), asm-generic/tlb.h now calls tlb_flush() from a static inline function, so we need to make sure that it's declared before #including the asm-generic header in the arch header. Reported-by: Guenter Roeck Fixes: fd1102f0aade ("mm: mmu_notifier fix for tlb_end_vma") Signed-off-by: Will Deacon [groeck: Use forward declaration instead of moving inline function] Signed-off-by: Guenter Roeck Signed-off-by: Palmer Dabbelt --- arch/riscv/include/asm/tlb.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/riscv/include/asm/tlb.h b/arch/riscv/include/asm/tlb.h index c229509288ea..439dc7072e05 100644 --- a/arch/riscv/include/asm/tlb.h +++ b/arch/riscv/include/asm/tlb.h @@ -14,6 +14,10 @@ #ifndef _ASM_RISCV_TLB_H #define _ASM_RISCV_TLB_H +struct mmu_gather; + +static void tlb_flush(struct mmu_gather *tlb); + #include static inline void tlb_flush(struct mmu_gather *tlb) From 47d80a68f10d3290204a12f7836a9a8190dfc327 Mon Sep 17 00:00:00 2001 From: Palmer Dabbelt Date: Tue, 28 Aug 2018 09:37:16 -0700 Subject: [PATCH 0282/1762] RISC-V: Use a less ugly workaround for unused variable warnings Thanks to Christoph Hellwig for pointing out a cleaner way to do this, as my approach was quite ugly. CC: Christoph Hellwig Signed-off-by: Palmer Dabbelt --- arch/riscv/kernel/sys_riscv.c | 15 +-------------- 1 file changed, 1 insertion(+), 14 deletions(-) diff --git a/arch/riscv/kernel/sys_riscv.c b/arch/riscv/kernel/sys_riscv.c index 568026ccf6e8..fb03a4482ad6 100644 --- a/arch/riscv/kernel/sys_riscv.c +++ b/arch/riscv/kernel/sys_riscv.c @@ -65,24 +65,11 @@ SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len, SYSCALL_DEFINE3(riscv_flush_icache, uintptr_t, start, uintptr_t, end, uintptr_t, flags) { -#ifdef CONFIG_SMP - struct mm_struct *mm = current->mm; - bool local = (flags & SYS_RISCV_FLUSH_ICACHE_LOCAL) != 0; -#endif - /* Check the reserved flags. */ if (unlikely(flags & ~SYS_RISCV_FLUSH_ICACHE_ALL)) return -EINVAL; - /* - * Without CONFIG_SMP flush_icache_mm is a just a flush_icache_all(), - * which generates unused variable warnings all over this function. - */ -#ifdef CONFIG_SMP - flush_icache_mm(mm, local); -#else - flush_icache_all(); -#endif + flush_icache_mm(current->mm, flags & SYS_RISCV_FLUSH_ICACHE_LOCAL); return 0; } From 076e2cedd6ea4786569c35f8725b4efdc1ecf2f2 Mon Sep 17 00:00:00 2001 From: Joe Jin Date: Tue, 28 Aug 2018 07:56:08 -0700 Subject: [PATCH 0283/1762] xen: export device state to sysfs Export device state to sysfs to allow for easier get device state. Signed-off-by: Joe Jin Reviewed-by: Boris Ostrovsky Cc: Boris Ostrovsky Cc: Juergen Gross Cc: Konrad Rzeszutek Wilk Signed-off-by: Boris Ostrovsky --- Documentation/ABI/stable/sysfs-bus-xen-backend | 9 +++++++++ drivers/xen/xenbus/xenbus_probe.c | 9 +++++++++ 2 files changed, 18 insertions(+) diff --git a/Documentation/ABI/stable/sysfs-bus-xen-backend b/Documentation/ABI/stable/sysfs-bus-xen-backend index 3d5951c8bf5f..e8b60bd766f7 100644 --- a/Documentation/ABI/stable/sysfs-bus-xen-backend +++ b/Documentation/ABI/stable/sysfs-bus-xen-backend @@ -73,3 +73,12 @@ KernelVersion: 3.0 Contact: Konrad Rzeszutek Wilk Description: Number of sectors written by the frontend. + +What: /sys/bus/xen-backend/devices/*/state +Date: August 2018 +KernelVersion: 4.19 +Contact: Joe Jin +Description: + The state of the device. One of: 'Unknown', + 'Initialising', 'Initialised', 'Connected', 'Closing', + 'Closed', 'Reconfiguring', 'Reconfigured'. diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index f2088838f690..5b471889d723 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -402,10 +402,19 @@ static ssize_t modalias_show(struct device *dev, } static DEVICE_ATTR_RO(modalias); +static ssize_t state_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%s\n", + xenbus_strstate(to_xenbus_device(dev)->state)); +} +static DEVICE_ATTR_RO(state); + static struct attribute *xenbus_dev_attrs[] = { &dev_attr_nodename.attr, &dev_attr_devtype.attr, &dev_attr_modalias.attr, + &dev_attr_state.attr, NULL, }; From 6d3c8ce012cefbdd73a3bba3c7f9a44af1c6a0bb Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Tue, 28 Aug 2018 17:10:46 +0100 Subject: [PATCH 0284/1762] x86/xen: remove redundant variable save_pud Variable save_pud is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: variable 'save_pud' set but not used [-Wunused-but-set-variable] Signed-off-by: Colin Ian King Reviewed-by: Boris Ostrovsky Signed-off-by: Boris Ostrovsky --- arch/x86/xen/mmu_pv.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c index 9396b4d17064..ede298c183e9 100644 --- a/arch/x86/xen/mmu_pv.c +++ b/arch/x86/xen/mmu_pv.c @@ -2059,7 +2059,6 @@ void __init xen_relocate_p2m(void) pud_t *pud; pgd_t *pgd; unsigned long *new_p2m; - int save_pud; size = PAGE_ALIGN(xen_start_info->nr_pages * sizeof(unsigned long)); n_pte = roundup(size, PAGE_SIZE) >> PAGE_SHIFT; @@ -2089,7 +2088,6 @@ void __init xen_relocate_p2m(void) pgd = __va(read_cr3_pa()); new_p2m = (unsigned long *)(2 * PGDIR_SIZE); - save_pud = n_pud; for (idx_pud = 0; idx_pud < n_pud; idx_pud++) { pud = early_memremap(pud_phys, PAGE_SIZE); clear_page(pud); From 450b6b9b169382205f88858541a8b79830262ce7 Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Thu, 23 Aug 2018 18:06:54 -0500 Subject: [PATCH 0285/1762] clk: npcm7xx: fix memory allocation One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; void *entry[]; }; instance = kzalloc(sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL); Notice that, currently, there is a bug during the allocation: sizeof(npcm7xx_clk_data) should be sizeof(*npcm7xx_clk_data) Fix this bug by using struct_size() in kzalloc() This issue was detected with the help of Coccinelle. Cc: stable@vger.kernel.org Signed-off-by: Gustavo A. R. Silva Reviewed-by: Kees Cook Reviewed-by: Avi Fishman Signed-off-by: Stephen Boyd --- drivers/clk/clk-npcm7xx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/clk-npcm7xx.c b/drivers/clk/clk-npcm7xx.c index 740af90a9508..c5edf8f2fd19 100644 --- a/drivers/clk/clk-npcm7xx.c +++ b/drivers/clk/clk-npcm7xx.c @@ -558,8 +558,8 @@ static void __init npcm7xx_clk_init(struct device_node *clk_np) if (!clk_base) goto npcm7xx_init_error; - npcm7xx_clk_data = kzalloc(sizeof(*npcm7xx_clk_data->hws) * - NPCM7XX_NUM_CLOCKS + sizeof(npcm7xx_clk_data), GFP_KERNEL); + npcm7xx_clk_data = kzalloc(struct_size(npcm7xx_clk_data, hws, + NPCM7XX_NUM_CLOCKS), GFP_KERNEL); if (!npcm7xx_clk_data) goto npcm7xx_init_np_err; From 5b24109b0563d45094c470684c1f8cea1af269f8 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Tue, 28 Aug 2018 16:15:35 +0200 Subject: [PATCH 0286/1762] bpf: fix several offset tests in bpf_msg_pull_data While recently going over bpf_msg_pull_data(), I noticed three issues which are fixed in here: 1) When we attempt to find the first scatterlist element (sge) for the start offset, we add len to the offset before we check for start < offset + len, whereas it should come after when we iterate to the next sge to accumulate the offsets. For example, given a start offset of 12 with a sge length of 8 for the first sge in the list would lead us to determine this sge as the first sge thinking it covers first 16 bytes where start is located, whereas start sits in subsequent sges so we would end up pulling in the wrong data. 2) After figuring out the starting sge, we have a short-cut test in !msg->sg_copy[i] && bytes <= len. This checks whether it's not needed to make the page at the sge private where we can just exit by updating msg->data and msg->data_end. However, the length test is not fully correct. bytes <= len checks whether the requested bytes (end - start offsets) fit into the sge's length. The part that is missing is that start must not be sge length aligned. Meaning, the start offset into the sge needs to be accounted as well on top of the requested bytes as otherwise we can access the sge out of bounds. For example the sge could have length of 8, our requested bytes could have length of 8, but at a start offset of 4, so we also would need to pull in 4 bytes of the next sge, when we jump to the out label we do set msg->data to sg_virt(&sg[i]) + start - offset and msg->data_end to msg->data + bytes which would be oob. 3) The subsequent bytes < copy test for finding the last sge has the same issue as in point 2) but also it tests for less than rather than less or equal to. Meaning if the sge length is of 8 and requested bytes of 8 while having the start aligned with the sge, we would unnecessarily go and pull in the next sge as well to make it private. Fixes: 015632bb30da ("bpf: sk_msg program helper bpf_sk_msg_pull_data") Signed-off-by: Daniel Borkmann Acked-by: John Fastabend Signed-off-by: Alexei Starovoitov --- net/core/filter.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/net/core/filter.c b/net/core/filter.c index 7a2430945c71..ec4d67c0cf0c 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -2286,10 +2286,10 @@ BPF_CALL_4(bpf_msg_pull_data, struct sk_msg_buff *, msg, u32, start, u32, end, u64, flags) { unsigned int len = 0, offset = 0, copy = 0; + int bytes = end - start, bytes_sg_total; struct scatterlist *sg = msg->sg_data; int first_sg, last_sg, i, shift; unsigned char *p, *to, *from; - int bytes = end - start; struct page *page; if (unlikely(flags || end <= start)) @@ -2299,9 +2299,9 @@ BPF_CALL_4(bpf_msg_pull_data, i = msg->sg_start; do { len = sg[i].length; - offset += len; if (start < offset + len) break; + offset += len; i++; if (i == MAX_SKB_FRAGS) i = 0; @@ -2310,7 +2310,11 @@ BPF_CALL_4(bpf_msg_pull_data, if (unlikely(start >= offset + len)) return -EINVAL; - if (!msg->sg_copy[i] && bytes <= len) + /* The start may point into the sg element so we need to also + * account for the headroom. + */ + bytes_sg_total = start - offset + bytes; + if (!msg->sg_copy[i] && bytes_sg_total <= len) goto out; first_sg = i; @@ -2330,12 +2334,12 @@ BPF_CALL_4(bpf_msg_pull_data, i++; if (i == MAX_SKB_FRAGS) i = 0; - if (bytes < copy) + if (bytes_sg_total <= copy) break; } while (i != msg->sg_end); last_sg = i; - if (unlikely(copy < end - start)) + if (unlikely(bytes_sg_total > copy)) return -EINVAL; page = alloc_pages(__GFP_NOWARN | GFP_ATOMIC, get_order(copy)); From 66174b6998a645c39867c3a301b4ee4611d6ca5b Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 13 Aug 2018 23:56:55 +0200 Subject: [PATCH 0287/1762] usb: dwc3: of-simple: avoid unused function warnings An incorrect #ifdef caused a pair of harmless warnings when CONFIG_PM_SLEEP is disabled: drivers/usb/dwc3/dwc3-of-simple.c:223:12: error: 'dwc3_of_simple_resume' defined but not used [-Werror=unused-function] static int dwc3_of_simple_resume(struct device *dev) ^~~~~~~~~~~~~~~~~~~~~ drivers/usb/dwc3/dwc3-of-simple.c:213:12: error: 'dwc3_of_simple_suspend' defined but not used [-Werror=unused-function] static int dwc3_of_simple_suspend(struct device *dev) Since the #ifdef method is generally hard to get right, use a simpler __maybe_unused annotation here to let the compiler drop the unused functions silently. This also improves compile-time coverage. Fixes: 76251db86561 ("usb: dwc3: of-simple: reset host controller at suspend/resume") Signed-off-by: Arnd Bergmann Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-of-simple.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c index 40bf9e0bbc59..4c2771c5e727 100644 --- a/drivers/usb/dwc3/dwc3-of-simple.c +++ b/drivers/usb/dwc3/dwc3-of-simple.c @@ -180,8 +180,7 @@ static int dwc3_of_simple_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM -static int dwc3_of_simple_runtime_suspend(struct device *dev) +static int __maybe_unused dwc3_of_simple_runtime_suspend(struct device *dev) { struct dwc3_of_simple *simple = dev_get_drvdata(dev); int i; @@ -192,7 +191,7 @@ static int dwc3_of_simple_runtime_suspend(struct device *dev) return 0; } -static int dwc3_of_simple_runtime_resume(struct device *dev) +static int __maybe_unused dwc3_of_simple_runtime_resume(struct device *dev) { struct dwc3_of_simple *simple = dev_get_drvdata(dev); int ret; @@ -210,7 +209,7 @@ static int dwc3_of_simple_runtime_resume(struct device *dev) return 0; } -static int dwc3_of_simple_suspend(struct device *dev) +static int __maybe_unused dwc3_of_simple_suspend(struct device *dev) { struct dwc3_of_simple *simple = dev_get_drvdata(dev); @@ -220,7 +219,7 @@ static int dwc3_of_simple_suspend(struct device *dev) return 0; } -static int dwc3_of_simple_resume(struct device *dev) +static int __maybe_unused dwc3_of_simple_resume(struct device *dev) { struct dwc3_of_simple *simple = dev_get_drvdata(dev); @@ -229,7 +228,6 @@ static int dwc3_of_simple_resume(struct device *dev) return 0; } -#endif static const struct dev_pm_ops dwc3_of_simple_dev_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(dwc3_of_simple_suspend, dwc3_of_simple_resume) From dec3c23c9aa1815f07d98ae0375b4cbc10971e13 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 8 Aug 2018 11:20:39 -0400 Subject: [PATCH 0288/1762] USB: net2280: Fix erroneous synchronization change Commit f16443a034c7 ("USB: gadgetfs, dummy-hcd, net2280: fix locking for callbacks") was based on a serious misunderstanding. It introduced regressions into both the dummy-hcd and net2280 drivers. The problem in dummy-hcd was fixed by commit 7dbd8f4cabd9 ("USB: dummy-hcd: Fix erroneous synchronization change"), but the problem in net2280 remains. Namely: the ->disconnect(), ->suspend(), ->resume(), and ->reset() callbacks must be invoked without the private lock held; otherwise a deadlock will occur when the callback routine tries to interact with the UDC driver. This patch largely is a reversion of the relevant parts of f16443a034c7. It also drops the private lock around the calls to ->suspend() and ->resume() (something the earlier patch forgot to do). This is safe from races with device interrupts because it occurs within the interrupt handler. Finally, the patch changes where the ->disconnect() callback is invoked when net2280_pullup() turns the pullup off. Rather than making the callback from within stop_activity() at a time when dropping the private lock could be unsafe, the callback is moved to a point after the lock has already been dropped. Signed-off-by: Alan Stern Fixes: f16443a034c7 ("USB: gadgetfs, dummy-hcd, net2280: fix locking for callbacks") Reported-by: D. Ziesche Tested-by: D. Ziesche CC: Signed-off-by: Felipe Balbi --- drivers/usb/gadget/udc/net2280.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c index 318246d8b2e2..b02ab2a8d927 100644 --- a/drivers/usb/gadget/udc/net2280.c +++ b/drivers/usb/gadget/udc/net2280.c @@ -1545,11 +1545,14 @@ static int net2280_pullup(struct usb_gadget *_gadget, int is_on) writel(tmp | BIT(USB_DETECT_ENABLE), &dev->usb->usbctl); } else { writel(tmp & ~BIT(USB_DETECT_ENABLE), &dev->usb->usbctl); - stop_activity(dev, dev->driver); + stop_activity(dev, NULL); } spin_unlock_irqrestore(&dev->lock, flags); + if (!is_on && dev->driver) + dev->driver->disconnect(&dev->gadget); + return 0; } @@ -2466,8 +2469,11 @@ static void stop_activity(struct net2280 *dev, struct usb_gadget_driver *driver) nuke(&dev->ep[i]); /* report disconnect; the driver is already quiesced */ - if (driver) + if (driver) { + spin_unlock(&dev->lock); driver->disconnect(&dev->gadget); + spin_lock(&dev->lock); + } usb_reinit(dev); } @@ -3341,6 +3347,8 @@ next_endpoints: BIT(PCI_RETRY_ABORT_INTERRUPT)) static void handle_stat1_irqs(struct net2280 *dev, u32 stat) +__releases(dev->lock) +__acquires(dev->lock) { struct net2280_ep *ep; u32 tmp, num, mask, scratch; @@ -3381,12 +3389,14 @@ static void handle_stat1_irqs(struct net2280 *dev, u32 stat) if (disconnect || reset) { stop_activity(dev, dev->driver); ep0_start(dev); + spin_unlock(&dev->lock); if (reset) usb_gadget_udc_reset (&dev->gadget, dev->driver); else (dev->driver->disconnect) (&dev->gadget); + spin_lock(&dev->lock); return; } } @@ -3405,6 +3415,7 @@ static void handle_stat1_irqs(struct net2280 *dev, u32 stat) tmp = BIT(SUSPEND_REQUEST_CHANGE_INTERRUPT); if (stat & tmp) { writel(tmp, &dev->regs->irqstat1); + spin_unlock(&dev->lock); if (stat & BIT(SUSPEND_REQUEST_INTERRUPT)) { if (dev->driver->suspend) dev->driver->suspend(&dev->gadget); @@ -3415,6 +3426,7 @@ static void handle_stat1_irqs(struct net2280 *dev, u32 stat) dev->driver->resume(&dev->gadget); /* at high speed, note erratum 0133 */ } + spin_lock(&dev->lock); stat &= ~tmp; } From c37bd52836296ecc9a0fc8060b819089aebdbcde Mon Sep 17 00:00:00 2001 From: Anton Vasilyev Date: Tue, 7 Aug 2018 14:44:48 +0300 Subject: [PATCH 0289/1762] usb: gadget: fotg210-udc: Fix memory leak of fotg210->ep[i] There is no deallocation of fotg210->ep[i] elements, allocated at fotg210_udc_probe. The patch adds deallocation of fotg210->ep array elements and simplifies error path of fotg210_udc_probe(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Anton Vasilyev Signed-off-by: Felipe Balbi --- drivers/usb/gadget/udc/fotg210-udc.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c index 53a48f561458..587c5037ff07 100644 --- a/drivers/usb/gadget/udc/fotg210-udc.c +++ b/drivers/usb/gadget/udc/fotg210-udc.c @@ -1063,12 +1063,15 @@ static const struct usb_gadget_ops fotg210_gadget_ops = { static int fotg210_udc_remove(struct platform_device *pdev) { struct fotg210_udc *fotg210 = platform_get_drvdata(pdev); + int i; usb_del_gadget_udc(&fotg210->gadget); iounmap(fotg210->reg); free_irq(platform_get_irq(pdev, 0), fotg210); fotg210_ep_free_request(&fotg210->ep[0]->ep, fotg210->ep0_req); + for (i = 0; i < FOTG210_MAX_NUM_EP; i++) + kfree(fotg210->ep[i]); kfree(fotg210); return 0; @@ -1099,7 +1102,7 @@ static int fotg210_udc_probe(struct platform_device *pdev) /* initialize udc */ fotg210 = kzalloc(sizeof(struct fotg210_udc), GFP_KERNEL); if (fotg210 == NULL) - goto err_alloc; + goto err; for (i = 0; i < FOTG210_MAX_NUM_EP; i++) { _ep[i] = kzalloc(sizeof(struct fotg210_ep), GFP_KERNEL); @@ -1111,7 +1114,7 @@ static int fotg210_udc_probe(struct platform_device *pdev) fotg210->reg = ioremap(res->start, resource_size(res)); if (fotg210->reg == NULL) { pr_err("ioremap error.\n"); - goto err_map; + goto err_alloc; } spin_lock_init(&fotg210->lock); @@ -1159,7 +1162,7 @@ static int fotg210_udc_probe(struct platform_device *pdev) fotg210->ep0_req = fotg210_ep_alloc_request(&fotg210->ep[0]->ep, GFP_KERNEL); if (fotg210->ep0_req == NULL) - goto err_req; + goto err_map; fotg210_init(fotg210); @@ -1187,12 +1190,14 @@ err_req: fotg210_ep_free_request(&fotg210->ep[0]->ep, fotg210->ep0_req); err_map: - if (fotg210->reg) - iounmap(fotg210->reg); + iounmap(fotg210->reg); err_alloc: + for (i = 0; i < FOTG210_MAX_NUM_EP; i++) + kfree(fotg210->ep[i]); kfree(fotg210); +err: return ret; } From dfe1a51d2a36647f74cbad478801efa7cf394376 Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Fri, 3 Aug 2018 12:12:46 +0900 Subject: [PATCH 0290/1762] usb: gadget: udc: renesas_usb3: fix maxpacket size of ep0 This patch fixes an issue that maxpacket size of ep0 is incorrect for SuperSpeed. Otherwise, CDC NCM class with SuperSpeed doesn't work correctly on this driver because its control read data size is more than 64 bytes. Reported-by: Junki Kato Fixes: 746bfe63bba3 ("usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller") Cc: # v4.5+ Signed-off-by: Yoshihiro Shimoda Tested-by: Junki Kato Signed-off-by: Felipe Balbi --- drivers/usb/gadget/udc/renesas_usb3.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c index 1f879b3f2c96..e1656f361e08 100644 --- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -812,12 +812,15 @@ static void usb3_irq_epc_int_1_speed(struct renesas_usb3 *usb3) switch (speed) { case USB_STA_SPEED_SS: usb3->gadget.speed = USB_SPEED_SUPER; + usb3->gadget.ep0->maxpacket = USB3_EP0_SS_MAX_PACKET_SIZE; break; case USB_STA_SPEED_HS: usb3->gadget.speed = USB_SPEED_HIGH; + usb3->gadget.ep0->maxpacket = USB3_EP0_HSFS_MAX_PACKET_SIZE; break; case USB_STA_SPEED_FS: usb3->gadget.speed = USB_SPEED_FULL; + usb3->gadget.ep0->maxpacket = USB3_EP0_HSFS_MAX_PACKET_SIZE; break; default: usb3->gadget.speed = USB_SPEED_UNKNOWN; @@ -2513,7 +2516,7 @@ static int renesas_usb3_init_ep(struct renesas_usb3 *usb3, struct device *dev, /* for control pipe */ usb3->gadget.ep0 = &usb3_ep->ep; usb_ep_set_maxpacket_limit(&usb3_ep->ep, - USB3_EP0_HSFS_MAX_PACKET_SIZE); + USB3_EP0_SS_MAX_PACKET_SIZE); usb3_ep->ep.caps.type_control = true; usb3_ep->ep.caps.dir_in = true; usb3_ep->ep.caps.dir_out = true; From b497fff6f59ec4ab2816439e7ab976a90b7bab5c Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 31 Jul 2018 14:38:52 +0000 Subject: [PATCH 0291/1762] usb: dwc3: pci: Fix return value check in dwc3_byt_enable_ulpi_refclock() In case of error, the function pcim_iomap() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Fixes: 7740d04d901d ("usb: dwc3: pci: Enable ULPI Refclk on platforms where the firmware does not") Reviewed-by: Hans de Goede Signed-off-by: Wei Yongjun Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-pci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 5edd79470368..1286076a8890 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -85,8 +85,8 @@ static int dwc3_byt_enable_ulpi_refclock(struct pci_dev *pci) u32 value; reg = pcim_iomap(pci, GP_RWBAR, 0); - if (IS_ERR(reg)) - return PTR_ERR(reg); + if (!reg) + return -ENOMEM; value = readl(reg + GP_RWREG1); if (!(value & GP_RWREG1_ULPI_REFCLK_DISABLE)) From b55326dc969ea2d704a008d9a97583b128f54f4f Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Thu, 16 Aug 2018 13:06:46 -0700 Subject: [PATCH 0292/1762] pinctrl: msm: Really mask level interrupts to prevent latching The interrupt controller hardware in this pin controller has two status enable bits. The first "normal" status enable bit enables or disables the summary interrupt line being raised when a gpio interrupt triggers and the "raw" status enable bit allows or prevents the hardware from latching an interrupt into the status register for a gpio interrupt. Currently we just toggle the "normal" status enable bit in the mask and unmask ops so that the summary irq interrupt going to the CPU's interrupt controller doesn't trigger for the masked gpio interrupt. For a level triggered interrupt, the flow would be as follows: the pin controller sees the interrupt, latches the status into the status register, raises the summary irq to the CPU, summary irq handler runs and calls handle_level_irq(), handle_level_irq() masks and acks the gpio interrupt, the interrupt handler runs, and finally unmask the interrupt. When the interrupt handler completes, we expect that the interrupt line level will go back to the deasserted state so the genirq code can unmask the interrupt without it triggering again. If we only mask the interrupt by clearing the "normal" status enable bit then we'll ack the interrupt but it will continue to show up as pending in the status register because the raw status bit is enabled, the hardware hasn't deasserted the line, and thus the asserted state latches into the status register again. When the hardware deasserts the interrupt the pin controller still thinks there is a pending unserviced level interrupt because it latched it earlier. This behavior causes software to see an extra interrupt for level type interrupts each time the interrupt is handled. Let's fix this by clearing the raw status enable bit for level type interrupts so that the hardware stops latching the status of the interrupt after we ack it. We don't do this for edge type interrupts because it seems that toggling the raw status enable bit for edge type interrupts causes spurious edge interrupts. Signed-off-by: Stephen Boyd Reviewed-by: Douglas Anderson Reviewed-by: Bjorn Andersson Signed-off-by: Linus Walleij --- drivers/pinctrl/qcom/pinctrl-msm.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c index 2155a30c282b..5d72ffad32c2 100644 --- a/drivers/pinctrl/qcom/pinctrl-msm.c +++ b/drivers/pinctrl/qcom/pinctrl-msm.c @@ -634,6 +634,29 @@ static void msm_gpio_irq_mask(struct irq_data *d) raw_spin_lock_irqsave(&pctrl->lock, flags); val = readl(pctrl->regs + g->intr_cfg_reg); + /* + * There are two bits that control interrupt forwarding to the CPU. The + * RAW_STATUS_EN bit causes the level or edge sensed on the line to be + * latched into the interrupt status register when the hardware detects + * an irq that it's configured for (either edge for edge type or level + * for level type irq). The 'non-raw' status enable bit causes the + * hardware to assert the summary interrupt to the CPU if the latched + * status bit is set. There's a bug though, the edge detection logic + * seems to have a problem where toggling the RAW_STATUS_EN bit may + * cause the status bit to latch spuriously when there isn't any edge + * so we can't touch that bit for edge type irqs and we have to keep + * the bit set anyway so that edges are latched while the line is masked. + * + * To make matters more complicated, leaving the RAW_STATUS_EN bit + * enabled all the time causes level interrupts to re-latch into the + * status register because the level is still present on the line after + * we ack it. We clear the raw status enable bit during mask here and + * set the bit on unmask so the interrupt can't latch into the hardware + * while it's masked. + */ + if (irqd_get_trigger_type(d) & IRQ_TYPE_LEVEL_MASK) + val &= ~BIT(g->intr_raw_status_bit); + val &= ~BIT(g->intr_enable_bit); writel(val, pctrl->regs + g->intr_cfg_reg); @@ -655,6 +678,7 @@ static void msm_gpio_irq_unmask(struct irq_data *d) raw_spin_lock_irqsave(&pctrl->lock, flags); val = readl(pctrl->regs + g->intr_cfg_reg); + val |= BIT(g->intr_raw_status_bit); val |= BIT(g->intr_enable_bit); writel(val, pctrl->regs + g->intr_cfg_reg); From 6537886cdc9a637711fd6da980dbb87c2c87c9aa Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 13 Aug 2018 15:57:44 +0200 Subject: [PATCH 0293/1762] gpio: adp5588: Fix sleep-in-atomic-context bug This fixes: [BUG] gpio: gpio-adp5588: A possible sleep-in-atomic-context bug in adp5588_gpio_write() [BUG] gpio: gpio-adp5588: A possible sleep-in-atomic-context bug in adp5588_gpio_direction_input() Reported-by: Jia-Ju Bai Signed-off-by: Michael Hennerich Signed-off-by: Linus Walleij --- drivers/gpio/gpio-adp5588.c | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/drivers/gpio/gpio-adp5588.c b/drivers/gpio/gpio-adp5588.c index 3530ccd17e04..da9781a2ef4a 100644 --- a/drivers/gpio/gpio-adp5588.c +++ b/drivers/gpio/gpio-adp5588.c @@ -41,6 +41,8 @@ struct adp5588_gpio { uint8_t int_en[3]; uint8_t irq_mask[3]; uint8_t irq_stat[3]; + uint8_t int_input_en[3]; + uint8_t int_lvl_cached[3]; }; static int adp5588_gpio_read(struct i2c_client *client, u8 reg) @@ -173,12 +175,28 @@ static void adp5588_irq_bus_sync_unlock(struct irq_data *d) struct adp5588_gpio *dev = irq_data_get_irq_chip_data(d); int i; - for (i = 0; i <= ADP5588_BANK(ADP5588_MAXGPIO); i++) + for (i = 0; i <= ADP5588_BANK(ADP5588_MAXGPIO); i++) { + if (dev->int_input_en[i]) { + mutex_lock(&dev->lock); + dev->dir[i] &= ~dev->int_input_en[i]; + dev->int_input_en[i] = 0; + adp5588_gpio_write(dev->client, GPIO_DIR1 + i, + dev->dir[i]); + mutex_unlock(&dev->lock); + } + + if (dev->int_lvl_cached[i] != dev->int_lvl[i]) { + dev->int_lvl_cached[i] = dev->int_lvl[i]; + adp5588_gpio_write(dev->client, GPIO_INT_LVL1 + i, + dev->int_lvl[i]); + } + if (dev->int_en[i] ^ dev->irq_mask[i]) { dev->int_en[i] = dev->irq_mask[i]; adp5588_gpio_write(dev->client, GPIO_INT_EN1 + i, dev->int_en[i]); } + } mutex_unlock(&dev->irq_lock); } @@ -221,9 +239,7 @@ static int adp5588_irq_set_type(struct irq_data *d, unsigned int type) else return -EINVAL; - adp5588_gpio_direction_input(&dev->gpio_chip, gpio); - adp5588_gpio_write(dev->client, GPIO_INT_LVL1 + bank, - dev->int_lvl[bank]); + dev->int_input_en[bank] |= bit; return 0; } From 1f631c3201fe5491808df143d8fcba81b3197ffd Mon Sep 17 00:00:00 2001 From: Yuan-Chi Pang Date: Wed, 29 Aug 2018 09:30:08 +0800 Subject: [PATCH 0294/1762] mac80211: mesh: fix HWMP sequence numbering to follow standard IEEE 802.11-2016 14.10.8.3 HWMP sequence numbering says: If it is a target mesh STA, it shall update its own HWMP SN to maximum (current HWMP SN, target HWMP SN in the PREQ element) + 1 immediately before it generates a PREP element in response to a PREQ element. Signed-off-by: Yuan-Chi Pang Signed-off-by: Johannes Berg --- net/mac80211/mesh_hwmp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index 35ad3983ae4b..daf9db3c8f24 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -572,6 +572,10 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata, forward = false; reply = true; target_metric = 0; + + if (SN_GT(target_sn, ifmsh->sn)) + ifmsh->sn = target_sn; + if (time_after(jiffies, ifmsh->last_sn_update + net_traversal_jiffies(sdata)) || time_before(jiffies, ifmsh->last_sn_update)) { From 166ac9d55b0ab70b644e429be1f217fe8393cbd7 Mon Sep 17 00:00:00 2001 From: Sara Sharon Date: Wed, 29 Aug 2018 08:57:02 +0200 Subject: [PATCH 0295/1762] mac80211: avoid kernel panic when building AMSDU from non-linear SKB When building building AMSDU from non-linear SKB, we hit a kernel panic when trying to push the padding to the tail. Instead, put the padding at the head of the next subframe. This also fixes the A-MSDU subframes to not have the padding accounted in the length field and not have pad at all for the last subframe, both required by the spec. Fixes: 6e0456b54545 ("mac80211: add A-MSDU tx support") Signed-off-by: Sara Sharon Reviewed-by: Lorenzo Bianconi Signed-off-by: Johannes Berg --- net/mac80211/tx.c | 38 +++++++++++++++++++++----------------- 1 file changed, 21 insertions(+), 17 deletions(-) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index fa1f1e63a264..667a73d6eb5c 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -3073,27 +3073,18 @@ void ieee80211_clear_fast_xmit(struct sta_info *sta) } static bool ieee80211_amsdu_realloc_pad(struct ieee80211_local *local, - struct sk_buff *skb, int headroom, - int *subframe_len) + struct sk_buff *skb, int headroom) { - int amsdu_len = *subframe_len + sizeof(struct ethhdr); - int padding = (4 - amsdu_len) & 3; - - if (skb_headroom(skb) < headroom || skb_tailroom(skb) < padding) { + if (skb_headroom(skb) < headroom) { I802_DEBUG_INC(local->tx_expand_skb_head); - if (pskb_expand_head(skb, headroom, padding, GFP_ATOMIC)) { + if (pskb_expand_head(skb, headroom, 0, GFP_ATOMIC)) { wiphy_debug(local->hw.wiphy, "failed to reallocate TX buffer\n"); return false; } } - if (padding) { - *subframe_len += padding; - skb_put_zero(skb, padding); - } - return true; } @@ -3117,8 +3108,7 @@ static bool ieee80211_amsdu_prepare_head(struct ieee80211_sub_if_data *sdata, if (info->control.flags & IEEE80211_TX_CTRL_AMSDU) return true; - if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(*amsdu_hdr), - &subframe_len)) + if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(*amsdu_hdr))) return false; data = skb_push(skb, sizeof(*amsdu_hdr)); @@ -3184,7 +3174,8 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata, void *data; bool ret = false; unsigned int orig_len; - int n = 1, nfrags; + int n = 1, nfrags, pad = 0; + u16 hdrlen; if (!ieee80211_hw_check(&local->hw, TX_AMSDU)) return false; @@ -3235,8 +3226,19 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata, if (max_frags && nfrags > max_frags) goto out; - if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(rfc1042_header) + 2, - &subframe_len)) + /* + * Pad out the previous subframe to a multiple of 4 by adding the + * padding to the next one, that's being added. Note that head->len + * is the length of the full A-MSDU, but that works since each time + * we add a new subframe we pad out the previous one to a multiple + * of 4 and thus it no longer matters in the next round. + */ + hdrlen = fast_tx->hdr_len - sizeof(rfc1042_header); + if ((head->len - hdrlen) & 3) + pad = 4 - ((head->len - hdrlen) & 3); + + if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(rfc1042_header) + + 2 + pad)) goto out; ret = true; @@ -3248,6 +3250,8 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata, memcpy(data, &len, 2); memcpy(data + 2, rfc1042_header, sizeof(rfc1042_header)); + memset(skb_push(skb, pad), 0, pad); + head->len += skb->len; head->data_len += skb->len; *frag_tail = skb; From afce0cc9ad8aa510650e781a51e43c26e2a34cf6 Mon Sep 17 00:00:00 2001 From: Julien Grall Date: Tue, 14 Aug 2018 11:33:32 +0100 Subject: [PATCH 0296/1762] Documentation/arm64/sve: Couple of improvements and typos - Fix mismatch between SVE registers (Z) and FPSIMD register (V) - Don't prefix the path for [3] with Linux to stay consistent with [1] and [2]. Signed-off-by: Julien Grall Signed-off-by: Will Deacon --- Documentation/arm64/sve.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/arm64/sve.txt b/Documentation/arm64/sve.txt index f128f736b4a5..7169a0ec41d8 100644 --- a/Documentation/arm64/sve.txt +++ b/Documentation/arm64/sve.txt @@ -200,7 +200,7 @@ prctl(PR_SVE_SET_VL, unsigned long arg) thread. * Changing the vector length causes all of P0..P15, FFR and all bits of - Z0..V31 except for Z0 bits [127:0] .. Z31 bits [127:0] to become + Z0..Z31 except for Z0 bits [127:0] .. Z31 bits [127:0] to become unspecified. Calling PR_SVE_SET_VL with vl equal to the thread's current vector length, or calling PR_SVE_SET_VL with the PR_SVE_SET_VL_ONEXEC flag, does not constitute a change to the vector length for this purpose. @@ -500,7 +500,7 @@ References [2] arch/arm64/include/uapi/asm/ptrace.h AArch64 Linux ptrace ABI definitions -[3] linux/Documentation/arm64/cpu-feature-registers.txt +[3] Documentation/arm64/cpu-feature-registers.txt [4] ARM IHI0055C http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055c/IHI0055C_beta_aapcs64.pdf From 1d8f574708a3fb6f18c85486d0c5217df893c0cf Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Fri, 24 Aug 2018 15:08:29 +0100 Subject: [PATCH 0297/1762] arm/arm64: smccc-1.1: Make return values unsigned long An unfortunate consequence of having a strong typing for the input values to the SMC call is that it also affects the type of the return values, limiting r0 to 32 bits and r{1,2,3} to whatever was passed as an input. Let's turn everything into "unsigned long", which satisfies the requirements of both architectures, and allows for the full range of return values. Reported-by: Julien Grall Signed-off-by: Marc Zyngier Signed-off-by: Will Deacon --- include/linux/arm-smccc.h | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h index ca1d2cc2cdfa..5a91ff33720b 100644 --- a/include/linux/arm-smccc.h +++ b/include/linux/arm-smccc.h @@ -199,31 +199,31 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1, #define __declare_arg_0(a0, res) \ struct arm_smccc_res *___res = res; \ - register u32 r0 asm("r0") = a0; \ + register unsigned long r0 asm("r0") = (u32)a0; \ register unsigned long r1 asm("r1"); \ register unsigned long r2 asm("r2"); \ register unsigned long r3 asm("r3") #define __declare_arg_1(a0, a1, res) \ struct arm_smccc_res *___res = res; \ - register u32 r0 asm("r0") = a0; \ - register typeof(a1) r1 asm("r1") = a1; \ + register unsigned long r0 asm("r0") = (u32)a0; \ + register unsigned long r1 asm("r1") = a1; \ register unsigned long r2 asm("r2"); \ register unsigned long r3 asm("r3") #define __declare_arg_2(a0, a1, a2, res) \ struct arm_smccc_res *___res = res; \ - register u32 r0 asm("r0") = a0; \ - register typeof(a1) r1 asm("r1") = a1; \ - register typeof(a2) r2 asm("r2") = a2; \ + register unsigned long r0 asm("r0") = (u32)a0; \ + register unsigned long r1 asm("r1") = a1; \ + register unsigned long r2 asm("r2") = a2; \ register unsigned long r3 asm("r3") #define __declare_arg_3(a0, a1, a2, a3, res) \ struct arm_smccc_res *___res = res; \ - register u32 r0 asm("r0") = a0; \ - register typeof(a1) r1 asm("r1") = a1; \ - register typeof(a2) r2 asm("r2") = a2; \ - register typeof(a3) r3 asm("r3") = a3 + register unsigned long r0 asm("r0") = (u32)a0; \ + register unsigned long r1 asm("r1") = a1; \ + register unsigned long r2 asm("r2") = a2; \ + register unsigned long r3 asm("r3") = a3 #define __declare_arg_4(a0, a1, a2, a3, a4, res) \ __declare_arg_3(a0, a1, a2, a3, res); \ From ef39078d6342deaddacdd550c4197421bd83fb76 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Fri, 24 Aug 2018 08:43:35 +0200 Subject: [PATCH 0298/1762] netfilter: conntrack: place 'new' timeout in first location too tcp, sctp and dccp trackers re-use the userspace ctnetlink states to index their timeout arrays, which means timeout[0] is never used. Copy the 'new' state (syn-sent, dccp-request, ..) to 0 as well so external users can simply read it off timeouts[0] without need to differentiate dccp/sctp/tcp and udp/icmp/gre/generic. The alternative is to map all array accesses to 'i - 1', but that is a much more intrusive change. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_proto_dccp.c | 7 +++++++ net/netfilter/nf_conntrack_proto_sctp.c | 7 +++++++ net/netfilter/nf_conntrack_proto_tcp.c | 7 +++++++ 3 files changed, 21 insertions(+) diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c index 8c58f96b59e7..b81f70039828 100644 --- a/net/netfilter/nf_conntrack_proto_dccp.c +++ b/net/netfilter/nf_conntrack_proto_dccp.c @@ -697,6 +697,8 @@ static int dccp_timeout_nlattr_to_obj(struct nlattr *tb[], timeouts[i] = ntohl(nla_get_be32(tb[i])) * HZ; } } + + timeouts[CTA_TIMEOUT_DCCP_UNSPEC] = timeouts[CTA_TIMEOUT_DCCP_REQUEST]; return 0; } @@ -827,6 +829,11 @@ static int dccp_init_net(struct net *net, u_int16_t proto) dn->dccp_timeout[CT_DCCP_CLOSEREQ] = 64 * HZ; dn->dccp_timeout[CT_DCCP_CLOSING] = 64 * HZ; dn->dccp_timeout[CT_DCCP_TIMEWAIT] = 2 * DCCP_MSL; + + /* timeouts[0] is unused, make it same as SYN_SENT so + * ->timeouts[0] contains 'new' timeout, like udp or icmp. + */ + dn->dccp_timeout[CT_DCCP_NONE] = dn->dccp_timeout[CT_DCCP_REQUEST]; } return dccp_kmemdup_sysctl_table(net, pn, dn); diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c index 8d1e085fc14a..5eddfd32b852 100644 --- a/net/netfilter/nf_conntrack_proto_sctp.c +++ b/net/netfilter/nf_conntrack_proto_sctp.c @@ -613,6 +613,8 @@ static int sctp_timeout_nlattr_to_obj(struct nlattr *tb[], timeouts[i] = ntohl(nla_get_be32(tb[i])) * HZ; } } + + timeouts[CTA_TIMEOUT_SCTP_UNSPEC] = timeouts[CTA_TIMEOUT_SCTP_CLOSED]; return 0; } @@ -743,6 +745,11 @@ static int sctp_init_net(struct net *net, u_int16_t proto) for (i = 0; i < SCTP_CONNTRACK_MAX; i++) sn->timeouts[i] = sctp_timeouts[i]; + + /* timeouts[0] is unused, init it so ->timeouts[0] contains + * 'new' timeout, like udp or icmp. + */ + sn->timeouts[0] = sctp_timeouts[SCTP_CONNTRACK_CLOSED]; } return sctp_kmemdup_sysctl_table(pn, sn); diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index d80d322b9d8b..3e2dc56a96c3 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -1301,6 +1301,7 @@ static int tcp_timeout_nlattr_to_obj(struct nlattr *tb[], timeouts[TCP_CONNTRACK_SYN_SENT] = ntohl(nla_get_be32(tb[CTA_TIMEOUT_TCP_SYN_SENT]))*HZ; } + if (tb[CTA_TIMEOUT_TCP_SYN_RECV]) { timeouts[TCP_CONNTRACK_SYN_RECV] = ntohl(nla_get_be32(tb[CTA_TIMEOUT_TCP_SYN_RECV]))*HZ; @@ -1341,6 +1342,8 @@ static int tcp_timeout_nlattr_to_obj(struct nlattr *tb[], timeouts[TCP_CONNTRACK_UNACK] = ntohl(nla_get_be32(tb[CTA_TIMEOUT_TCP_UNACK]))*HZ; } + + timeouts[CTA_TIMEOUT_TCP_UNSPEC] = timeouts[CTA_TIMEOUT_TCP_SYN_SENT]; return 0; } @@ -1518,6 +1521,10 @@ static int tcp_init_net(struct net *net, u_int16_t proto) for (i = 0; i < TCP_CONNTRACK_TIMEOUT_MAX; i++) tn->timeouts[i] = tcp_timeouts[i]; + /* timeouts[0] is unused, make it same as SYN_SENT so + * ->timeouts[0] contains 'new' timeout, like udp or icmp. + */ + tn->timeouts[0] = tcp_timeouts[TCP_CONNTRACK_SYN_SENT]; tn->tcp_loose = nf_ct_tcp_loose; tn->tcp_be_liberal = nf_ct_tcp_be_liberal; tn->tcp_max_retrans = nf_ct_tcp_max_retrans; From 0434ccdcf883e53ec7156a6843943e940dc1feb8 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Fri, 24 Aug 2018 08:43:36 +0200 Subject: [PATCH 0299/1762] netfilter: nf_tables: rework ct timeout set support Using a private template is problematic: 1. We can't assign both a zone and a timeout policy (zone assigns a conntrack template, so we hit problem 1) 2. Using a template needs to take care of ct refcount, else we'll eventually free the private template due to ->use underflow. This patch reworks template policy to instead work with existing conntrack. As long as such conntrack has not yet been placed into the hash table (unconfirmed) we can still add the timeout extension. The only caveat is that we now need to update/correct ct->timeout to reflect the initial/new state, otherwise the conntrack entry retains the default 'new' timeout. Side effect of this change is that setting the policy must now occur from chains that are evaluated *after* the conntrack lookup has taken place. No released kernel contains the timeout policy feature yet, so this change should be ok. Changes since v2: - don't handle 'ct is confirmed case' - after previous patch, no need to special-case tcp/dccp/sctp timeout anymore Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- include/net/netfilter/nf_conntrack_timeout.h | 2 +- net/netfilter/nft_ct.c | 59 ++++++++++---------- 2 files changed, 30 insertions(+), 31 deletions(-) diff --git a/include/net/netfilter/nf_conntrack_timeout.h b/include/net/netfilter/nf_conntrack_timeout.h index d5f62cc6c2ae..3394d75e1c80 100644 --- a/include/net/netfilter/nf_conntrack_timeout.h +++ b/include/net/netfilter/nf_conntrack_timeout.h @@ -30,7 +30,7 @@ struct nf_conn_timeout { }; static inline unsigned int * -nf_ct_timeout_data(struct nf_conn_timeout *t) +nf_ct_timeout_data(const struct nf_conn_timeout *t) { struct nf_ct_timeout *timeout; diff --git a/net/netfilter/nft_ct.c b/net/netfilter/nft_ct.c index 26a8baebd072..5dd87748afa8 100644 --- a/net/netfilter/nft_ct.c +++ b/net/netfilter/nft_ct.c @@ -799,7 +799,7 @@ err: } struct nft_ct_timeout_obj { - struct nf_conn *tmpl; + struct nf_ct_timeout *timeout; u8 l4proto; }; @@ -809,26 +809,42 @@ static void nft_ct_timeout_obj_eval(struct nft_object *obj, { const struct nft_ct_timeout_obj *priv = nft_obj_data(obj); struct nf_conn *ct = (struct nf_conn *)skb_nfct(pkt->skb); - struct sk_buff *skb = pkt->skb; + struct nf_conn_timeout *timeout; + const unsigned int *values; - if (ct || - priv->l4proto != pkt->tprot) + if (priv->l4proto != pkt->tprot) return; - nf_ct_set(skb, priv->tmpl, IP_CT_NEW); + if (!ct || nf_ct_is_template(ct) || nf_ct_is_confirmed(ct)) + return; + + timeout = nf_ct_timeout_find(ct); + if (!timeout) { + timeout = nf_ct_timeout_ext_add(ct, priv->timeout, GFP_ATOMIC); + if (!timeout) { + regs->verdict.code = NF_DROP; + return; + } + } + + rcu_assign_pointer(timeout->timeout, priv->timeout); + + /* adjust the timeout as per 'new' state. ct is unconfirmed, + * so the current timestamp must not be added. + */ + values = nf_ct_timeout_data(timeout); + if (values) + nf_ct_refresh(ct, pkt->skb, values[0]); } static int nft_ct_timeout_obj_init(const struct nft_ctx *ctx, const struct nlattr * const tb[], struct nft_object *obj) { - const struct nf_conntrack_zone *zone = &nf_ct_zone_dflt; struct nft_ct_timeout_obj *priv = nft_obj_data(obj); const struct nf_conntrack_l4proto *l4proto; - struct nf_conn_timeout *timeout_ext; struct nf_ct_timeout *timeout; int l3num = ctx->family; - struct nf_conn *tmpl; __u8 l4num; int ret; @@ -863,28 +879,14 @@ static int nft_ct_timeout_obj_init(const struct nft_ctx *ctx, timeout->l3num = l3num; timeout->l4proto = l4proto; - tmpl = nf_ct_tmpl_alloc(ctx->net, zone, GFP_ATOMIC); - if (!tmpl) { - ret = -ENOMEM; - goto err_free_timeout; - } - - timeout_ext = nf_ct_timeout_ext_add(tmpl, timeout, GFP_ATOMIC); - if (!timeout_ext) { - ret = -ENOMEM; - goto err_free_tmpl; - } ret = nf_ct_netns_get(ctx->net, ctx->family); if (ret < 0) - goto err_free_tmpl; - - priv->tmpl = tmpl; + goto err_free_timeout; + priv->timeout = timeout; return 0; -err_free_tmpl: - nf_ct_tmpl_free(tmpl); err_free_timeout: kfree(timeout); err_proto_put: @@ -896,22 +898,19 @@ static void nft_ct_timeout_obj_destroy(const struct nft_ctx *ctx, struct nft_object *obj) { struct nft_ct_timeout_obj *priv = nft_obj_data(obj); - struct nf_conn_timeout *t = nf_ct_timeout_find(priv->tmpl); - struct nf_ct_timeout *timeout; + struct nf_ct_timeout *timeout = priv->timeout; - timeout = rcu_dereference_raw(t->timeout); nf_ct_untimeout(ctx->net, timeout); nf_ct_l4proto_put(timeout->l4proto); nf_ct_netns_put(ctx->net, ctx->family); - nf_ct_tmpl_free(priv->tmpl); + kfree(priv->timeout); } static int nft_ct_timeout_obj_dump(struct sk_buff *skb, struct nft_object *obj, bool reset) { const struct nft_ct_timeout_obj *priv = nft_obj_data(obj); - const struct nf_conn_timeout *t = nf_ct_timeout_find(priv->tmpl); - const struct nf_ct_timeout *timeout = rcu_dereference_raw(t->timeout); + const struct nf_ct_timeout *timeout = priv->timeout; struct nlattr *nest_params; int ret; From 993b9bc5c47fda86f8ab4e53d68c6fea5ff2764a Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 13 Aug 2018 19:00:27 +0300 Subject: [PATCH 0300/1762] gpiolib: acpi: Switch to cansleep version of GPIO library call The commit ca876c7483b6 ("gpiolib-acpi: make sure we trigger edge events at least once on boot") added a initial value check for pin which is about to be locked as IRQ. Unfortunately, not all GPIO drivers can do that atomically. Thus, switch to cansleep version of the call. Otherwise we have a warning: ... WARNING: CPU: 2 PID: 1408 at drivers/gpio/gpiolib.c:2883 gpiod_get_value+0x46/0x50 ... RIP: 0010:gpiod_get_value+0x46/0x50 ... The change tested on Intel Broxton with Whiskey Cove PMIC GPIO controller. Fixes: ca876c7483b6 ("gpiolib-acpi: make sure we trigger edge events at least once on boot") Signed-off-by: Andy Shevchenko Cc: Hans de Goede Cc: Benjamin Tissoires Acked-by: Mika Westerberg Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib-acpi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index c48ed9d89ff5..f9134f23c7e8 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -186,7 +186,7 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares, gpiod_direction_input(desc); - value = gpiod_get_value(desc); + value = gpiod_get_value_cansleep(desc); ret = gpiochip_lock_as_irq(chip, pin); if (ret) { From aec785f6a0dcd68c3d2ad4a7d5b48d5fc94d75e8 Mon Sep 17 00:00:00 2001 From: Kirill Marinushkin Date: Tue, 28 Aug 2018 23:42:30 +0200 Subject: [PATCH 0301/1762] ASoC: pcm3060: Improve stylistics of file comments Modified the complete file comments in C++ style, to make them look more intentional Signed-off-by: Kirill Marinushkin Signed-off-by: Mark Brown --- sound/soc/codecs/pcm3060-i2c.c | 9 ++++----- sound/soc/codecs/pcm3060-spi.c | 9 ++++----- sound/soc/codecs/pcm3060.c | 9 ++++----- 3 files changed, 12 insertions(+), 15 deletions(-) diff --git a/sound/soc/codecs/pcm3060-i2c.c b/sound/soc/codecs/pcm3060-i2c.c index 03d2b4323626..cdc8314882bc 100644 --- a/sound/soc/codecs/pcm3060-i2c.c +++ b/sound/soc/codecs/pcm3060-i2c.c @@ -1,9 +1,8 @@ // SPDX-License-Identifier: GPL-2.0 -/* - * PCM3060 I2C driver - * - * Copyright (C) 2018 Kirill Marinushkin - */ +// +// PCM3060 I2C driver +// +// Copyright (C) 2018 Kirill Marinushkin #include #include diff --git a/sound/soc/codecs/pcm3060-spi.c b/sound/soc/codecs/pcm3060-spi.c index 8961e095ae73..f6f19fa80932 100644 --- a/sound/soc/codecs/pcm3060-spi.c +++ b/sound/soc/codecs/pcm3060-spi.c @@ -1,9 +1,8 @@ // SPDX-License-Identifier: GPL-2.0 -/* - * PCM3060 SPI driver - * - * Copyright (C) 2018 Kirill Marinushkin - */ +// +// PCM3060 SPI driver +// +// Copyright (C) 2018 Kirill Marinushkin #include #include diff --git a/sound/soc/codecs/pcm3060.c b/sound/soc/codecs/pcm3060.c index ef7c627c9ac5..5b9718fa766d 100644 --- a/sound/soc/codecs/pcm3060.c +++ b/sound/soc/codecs/pcm3060.c @@ -1,9 +1,8 @@ // SPDX-License-Identifier: GPL-2.0 -/* - * PCM3060 codec driver - * - * Copyright (C) 2018 Kirill Marinushkin - */ +// +// PCM3060 codec driver +// +// Copyright (C) 2018 Kirill Marinushkin #include #include From 080aaf10892eec4b359126473e582f62ebb09496 Mon Sep 17 00:00:00 2001 From: Kirill Marinushkin Date: Tue, 28 Aug 2018 23:42:31 +0200 Subject: [PATCH 0302/1762] ASoC: pcm3060: Improve legibility of if-statements Modified some if-statements to make them more clear Signed-off-by: Kirill Marinushkin Signed-off-by: Mark Brown --- sound/soc/codecs/pcm3060.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/pcm3060.c b/sound/soc/codecs/pcm3060.c index 5b9718fa766d..494d9d662be8 100644 --- a/sound/soc/codecs/pcm3060.c +++ b/sound/soc/codecs/pcm3060.c @@ -68,7 +68,10 @@ static int pcm3060_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) return -EINVAL; } - reg = (dai->id == PCM3060_DAI_ID_DAC ? PCM3060_REG67 : PCM3060_REG72); + if (dai->id == PCM3060_DAI_ID_DAC) + reg = PCM3060_REG67; + else + reg = PCM3060_REG72; regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_FMT, val); @@ -124,7 +127,10 @@ static int pcm3060_hw_params(struct snd_pcm_substream *substream, } val_ready: - reg = (dai->id == PCM3060_DAI_ID_DAC ? PCM3060_REG67 : PCM3060_REG72); + if (dai->id == PCM3060_DAI_ID_DAC) + reg = PCM3060_REG67; + else + reg = PCM3060_REG72; regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_MS, val); From 78d3a92edbfb02e8cb83173cad84c3f2d5e1f070 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 14 Aug 2018 16:07:03 +0200 Subject: [PATCH 0303/1762] gpiolib-acpi: Register GpioInt ACPI event handlers from a late_initcall GpioInt ACPI event handlers may see there IRQ triggered immediately after requesting the IRQ (esp. level triggered ones). This means that they may run before any other (builtin) drivers have had a chance to register their OpRegion handlers, leading to errors like this: [ 1.133274] ACPI Error: No handler for Region [PMOP] ((____ptrval____)) [UserDefinedRegion] (20180531/evregion-132) [ 1.133286] ACPI Error: Region UserDefinedRegion (ID=141) has no handler (20180531/exfldio-265) [ 1.133297] ACPI Error: Method parse/execution failed \_SB.GPO2._L01, AE_NOT_EXIST (20180531/psparse-516) We already defer the manual initial trigger of edge triggered interrupts by running it from a late_initcall handler, this commit replaces this with deferring the entire acpi_gpiochip_request_interrupts() call till then, fixing the problem of some OpRegions not being registered yet. Note that this removes the need to have a list of edge triggered handlers which need to run, since the entire acpi_gpiochip_request_interrupts() call is now delayed, acpi_gpiochip_request_interrupt() can call these directly now. Acked-by: Mika Westerberg Signed-off-by: Hans de Goede Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib-acpi.c | 84 +++++++++++++++++++++---------------- 1 file changed, 49 insertions(+), 35 deletions(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index f9134f23c7e8..8b9d7e42c600 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -25,7 +25,6 @@ struct acpi_gpio_event { struct list_head node; - struct list_head initial_sync_list; acpi_handle handle; unsigned int pin; unsigned int irq; @@ -49,10 +48,19 @@ struct acpi_gpio_chip { struct mutex conn_lock; struct gpio_chip *chip; struct list_head events; + struct list_head deferred_req_irqs_list_entry; }; -static LIST_HEAD(acpi_gpio_initial_sync_list); -static DEFINE_MUTEX(acpi_gpio_initial_sync_list_lock); +/* + * For gpiochips which call acpi_gpiochip_request_interrupts() before late_init + * (so builtin drivers) we register the ACPI GpioInt event handlers from a + * late_initcall_sync handler, so that other builtin drivers can register their + * OpRegions before the event handlers can run. This list contains gpiochips + * for which the acpi_gpiochip_request_interrupts() has been deferred. + */ +static DEFINE_MUTEX(acpi_gpio_deferred_req_irqs_lock); +static LIST_HEAD(acpi_gpio_deferred_req_irqs_list); +static bool acpi_gpio_deferred_req_irqs_done; static int acpi_gpiochip_find(struct gpio_chip *gc, void *data) { @@ -89,21 +97,6 @@ static struct gpio_desc *acpi_get_gpiod(char *path, int pin) return gpiochip_get_desc(chip, pin); } -static void acpi_gpio_add_to_initial_sync_list(struct acpi_gpio_event *event) -{ - mutex_lock(&acpi_gpio_initial_sync_list_lock); - list_add(&event->initial_sync_list, &acpi_gpio_initial_sync_list); - mutex_unlock(&acpi_gpio_initial_sync_list_lock); -} - -static void acpi_gpio_del_from_initial_sync_list(struct acpi_gpio_event *event) -{ - mutex_lock(&acpi_gpio_initial_sync_list_lock); - if (!list_empty(&event->initial_sync_list)) - list_del_init(&event->initial_sync_list); - mutex_unlock(&acpi_gpio_initial_sync_list_lock); -} - static irqreturn_t acpi_gpio_irq_handler(int irq, void *data) { struct acpi_gpio_event *event = data; @@ -229,7 +222,6 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares, event->irq = irq; event->pin = pin; event->desc = desc; - INIT_LIST_HEAD(&event->initial_sync_list); ret = request_threaded_irq(event->irq, NULL, handler, irqflags, "ACPI:Event", event); @@ -251,10 +243,9 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares, * may refer to OperationRegions from other (builtin) drivers which * may be probed after us. */ - if (handler == acpi_gpio_irq_handler && - (((irqflags & IRQF_TRIGGER_RISING) && value == 1) || - ((irqflags & IRQF_TRIGGER_FALLING) && value == 0))) - acpi_gpio_add_to_initial_sync_list(event); + if (((irqflags & IRQF_TRIGGER_RISING) && value == 1) || + ((irqflags & IRQF_TRIGGER_FALLING) && value == 0)) + handler(event->irq, event); return AE_OK; @@ -283,6 +274,7 @@ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip) struct acpi_gpio_chip *acpi_gpio; acpi_handle handle; acpi_status status; + bool defer; if (!chip->parent || !chip->to_irq) return; @@ -295,6 +287,16 @@ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip) if (ACPI_FAILURE(status)) return; + mutex_lock(&acpi_gpio_deferred_req_irqs_lock); + defer = !acpi_gpio_deferred_req_irqs_done; + if (defer) + list_add(&acpi_gpio->deferred_req_irqs_list_entry, + &acpi_gpio_deferred_req_irqs_list); + mutex_unlock(&acpi_gpio_deferred_req_irqs_lock); + + if (defer) + return; + acpi_walk_resources(handle, "_AEI", acpi_gpiochip_request_interrupt, acpi_gpio); } @@ -325,11 +327,14 @@ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip) if (ACPI_FAILURE(status)) return; + mutex_lock(&acpi_gpio_deferred_req_irqs_lock); + if (!list_empty(&acpi_gpio->deferred_req_irqs_list_entry)) + list_del_init(&acpi_gpio->deferred_req_irqs_list_entry); + mutex_unlock(&acpi_gpio_deferred_req_irqs_lock); + list_for_each_entry_safe_reverse(event, ep, &acpi_gpio->events, node) { struct gpio_desc *desc; - acpi_gpio_del_from_initial_sync_list(event); - if (irqd_is_wakeup_set(irq_get_irq_data(event->irq))) disable_irq_wake(event->irq); @@ -1052,6 +1057,7 @@ void acpi_gpiochip_add(struct gpio_chip *chip) acpi_gpio->chip = chip; INIT_LIST_HEAD(&acpi_gpio->events); + INIT_LIST_HEAD(&acpi_gpio->deferred_req_irqs_list_entry); status = acpi_attach_data(handle, acpi_gpio_chip_dh, acpi_gpio); if (ACPI_FAILURE(status)) { @@ -1198,20 +1204,28 @@ bool acpi_can_fallback_to_crs(struct acpi_device *adev, const char *con_id) return con_id == NULL; } -/* Sync the initial state of handlers after all builtin drivers have probed */ -static int acpi_gpio_initial_sync(void) +/* Run deferred acpi_gpiochip_request_interrupts() */ +static int acpi_gpio_handle_deferred_request_interrupts(void) { - struct acpi_gpio_event *event, *ep; + struct acpi_gpio_chip *acpi_gpio, *tmp; - mutex_lock(&acpi_gpio_initial_sync_list_lock); - list_for_each_entry_safe(event, ep, &acpi_gpio_initial_sync_list, - initial_sync_list) { - acpi_evaluate_object(event->handle, NULL, NULL, NULL); - list_del_init(&event->initial_sync_list); + mutex_lock(&acpi_gpio_deferred_req_irqs_lock); + list_for_each_entry_safe(acpi_gpio, tmp, + &acpi_gpio_deferred_req_irqs_list, + deferred_req_irqs_list_entry) { + acpi_handle handle; + + handle = ACPI_HANDLE(acpi_gpio->chip->parent); + acpi_walk_resources(handle, "_AEI", + acpi_gpiochip_request_interrupt, acpi_gpio); + + list_del_init(&acpi_gpio->deferred_req_irqs_list_entry); } - mutex_unlock(&acpi_gpio_initial_sync_list_lock); + + acpi_gpio_deferred_req_irqs_done = true; + mutex_unlock(&acpi_gpio_deferred_req_irqs_lock); return 0; } /* We must use _sync so that this runs after the first deferred_probe run */ -late_initcall_sync(acpi_gpio_initial_sync); +late_initcall_sync(acpi_gpio_handle_deferred_request_interrupts); From dba508b5ab1d138bd7543a3f503492f1a173aa32 Mon Sep 17 00:00:00 2001 From: Robert Rosengren Date: Mon, 13 Aug 2018 09:33:58 +0200 Subject: [PATCH 0304/1762] ASoC: adau17x1: Unused exported functions changed to internal adau17x1_setup_firmware and adau17x1_has_dsp is only used internally, so making them static instead of exported. Signed-off-by: Robert Rosengren Acked-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- sound/soc/codecs/adau17x1.c | 9 +++++---- sound/soc/codecs/adau17x1.h | 4 ---- 2 files changed, 5 insertions(+), 8 deletions(-) diff --git a/sound/soc/codecs/adau17x1.c b/sound/soc/codecs/adau17x1.c index c0bc429249fa..3959e6ad113d 100644 --- a/sound/soc/codecs/adau17x1.c +++ b/sound/soc/codecs/adau17x1.c @@ -67,6 +67,9 @@ static const struct snd_kcontrol_new adau17x1_controls[] = { SOC_ENUM("Mic Bias Mode", adau17x1_mic_bias_mode_enum), }; +static int adau17x1_setup_firmware(struct snd_soc_component *component, + unsigned int rate); + static int adau17x1_pll_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { @@ -320,7 +323,7 @@ static const struct snd_soc_dapm_route adau17x1_no_dsp_dapm_routes[] = { { "Capture", NULL, "Right Decimator" }, }; -bool adau17x1_has_dsp(struct adau *adau) +static bool adau17x1_has_dsp(struct adau *adau) { switch (adau->type) { case ADAU1761: @@ -331,7 +334,6 @@ bool adau17x1_has_dsp(struct adau *adau) return false; } } -EXPORT_SYMBOL_GPL(adau17x1_has_dsp); static bool adau17x1_has_safeload(struct adau *adau) { @@ -854,7 +856,7 @@ bool adau17x1_volatile_register(struct device *dev, unsigned int reg) } EXPORT_SYMBOL_GPL(adau17x1_volatile_register); -int adau17x1_setup_firmware(struct snd_soc_component *component, +static int adau17x1_setup_firmware(struct snd_soc_component *component, unsigned int rate) { int ret; @@ -898,7 +900,6 @@ err: return ret; } -EXPORT_SYMBOL_GPL(adau17x1_setup_firmware); int adau17x1_add_widgets(struct snd_soc_component *component) { diff --git a/sound/soc/codecs/adau17x1.h b/sound/soc/codecs/adau17x1.h index e6fe87beec07..98a3b6f5bc96 100644 --- a/sound/soc/codecs/adau17x1.h +++ b/sound/soc/codecs/adau17x1.h @@ -68,10 +68,6 @@ int adau17x1_resume(struct snd_soc_component *component); extern const struct snd_soc_dai_ops adau17x1_dai_ops; -int adau17x1_setup_firmware(struct snd_soc_component *component, - unsigned int rate); -bool adau17x1_has_dsp(struct adau *adau); - #define ADAU17X1_CLOCK_CONTROL 0x4000 #define ADAU17X1_PLL_CONTROL 0x4002 #define ADAU17X1_REC_POWER_MGMT 0x4009 From 823dd71f58eb2133c24af85fad056a8dbb1a76e9 Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Sat, 25 Aug 2018 10:53:28 -0700 Subject: [PATCH 0305/1762] pinctrl: ingenic: Fix group & function error checking Commit a203728ac6bb ("pinctrl: core: Return selector to the pinctrl driver") and commit f913cfce4ee4 ("pinctrl: pinmux: Return selector to the pinctrl driver") modified the return values of pinctrl_generic_add_group() and pinmux_generic_add_function() respectively, but did so without updating their callers. This broke the pinctrl-ingenic driver, which treats non-zero return values from these functions as errors & fails to probe. For example on a MIPS Ci20: pinctrl-ingenic 10010000.pin-controller: Failed to register group uart0-hwflow pinctrl-ingenic: probe of 10010000.pin-controller failed with error 1 Without the pinctrl driver probed, other drivers go on to fail to probe too & the system is unusable. Fix this by modifying the error checks to treat only negative values as errors, matching the commits that introduced the breakage & similar changes made to other drivers. Signed-off-by: Paul Burton Fixes: a203728ac6bb ("pinctrl: core: Return selector to the pinctrl driver") Fixes: f913cfce4ee4 ("pinctrl: pinmux: Return selector to the pinctrl driver") Cc: Linus Walleij Cc: Paul Cercueil Cc: Tony Lindgren Cc: linux-gpio@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-ingenic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pinctrl/pinctrl-ingenic.c b/drivers/pinctrl/pinctrl-ingenic.c index 6a1b6058b991..628817c40e3b 100644 --- a/drivers/pinctrl/pinctrl-ingenic.c +++ b/drivers/pinctrl/pinctrl-ingenic.c @@ -793,7 +793,7 @@ static int ingenic_pinctrl_probe(struct platform_device *pdev) err = pinctrl_generic_add_group(jzpc->pctl, group->name, group->pins, group->num_pins, group->data); - if (err) { + if (err < 0) { dev_err(dev, "Failed to register group %s\n", group->name); return err; @@ -806,7 +806,7 @@ static int ingenic_pinctrl_probe(struct platform_device *pdev) err = pinmux_generic_add_function(jzpc->pctl, func->name, func->group_names, func->num_group_names, func->data); - if (err) { + if (err < 0) { dev_err(dev, "Failed to register function %s\n", func->name); return err; From 5bc5a671b1f4b3aa019264ce970d3683a9ffa761 Mon Sep 17 00:00:00 2001 From: Richard Fitzgerald Date: Tue, 28 Aug 2018 09:45:37 +0100 Subject: [PATCH 0306/1762] pinctrl: madera: Fix possible NULL pointer with pdata config If we are being configured via pdata we don't necessarily have any gpio mappings being configured that way so pdata->gpio_config could be NULL. Signed-off-by: Richard Fitzgerald Signed-off-by: Linus Walleij --- drivers/pinctrl/cirrus/pinctrl-madera-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pinctrl/cirrus/pinctrl-madera-core.c b/drivers/pinctrl/cirrus/pinctrl-madera-core.c index ece41fb2848f..c4f4d904e4a6 100644 --- a/drivers/pinctrl/cirrus/pinctrl-madera-core.c +++ b/drivers/pinctrl/cirrus/pinctrl-madera-core.c @@ -1040,7 +1040,7 @@ static int madera_pin_probe(struct platform_device *pdev) } /* if the configuration is provided through pdata, apply it */ - if (pdata) { + if (pdata && pdata->gpio_configs) { ret = pinctrl_register_mappings(pdata->gpio_configs, pdata->n_gpio_configs); if (ret) { From a618cf4800970d260871c159b7eec014a1da2e81 Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Tue, 28 Aug 2018 23:40:26 +0300 Subject: [PATCH 0307/1762] gpio: dwapb: Fix error handling in dwapb_gpio_probe() If dwapb_gpio_add_port() fails in dwapb_gpio_probe(), gpio->clk is left undisabled. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Signed-off-by: Linus Walleij --- drivers/gpio/gpio-dwapb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c index 28da700f5f52..044888fd96a1 100644 --- a/drivers/gpio/gpio-dwapb.c +++ b/drivers/gpio/gpio-dwapb.c @@ -728,6 +728,7 @@ static int dwapb_gpio_probe(struct platform_device *pdev) out_unregister: dwapb_gpio_unregister(gpio); dwapb_irq_teardown(gpio); + clk_disable_unprepare(gpio->clk); return err; } From 36156f9241cb0f9e37d998052873ca7501ad4b36 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 27 Aug 2018 10:21:45 +0200 Subject: [PATCH 0308/1762] of: add helper to lookup compatible child node Add of_get_compatible_child() helper that can be used to lookup compatible child nodes. Several drivers currently use of_find_compatible_node() to lookup child nodes while failing to notice that the of_find_ functions search the entire tree depth-first (from a given start node) and therefore can match unrelated nodes. The fact that these functions also drop a reference to the node they start searching from (e.g. the parent node) is typically also overlooked, something which can lead to use-after-free bugs. Signed-off-by: Johan Hovold Signed-off-by: Rob Herring --- drivers/of/base.c | 25 +++++++++++++++++++++++++ include/linux/of.h | 8 ++++++++ 2 files changed, 33 insertions(+) diff --git a/drivers/of/base.c b/drivers/of/base.c index 466e3c8582f0..bc420d2aa5f5 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -719,6 +719,31 @@ struct device_node *of_get_next_available_child(const struct device_node *node, } EXPORT_SYMBOL(of_get_next_available_child); +/** + * of_get_compatible_child - Find compatible child node + * @parent: parent node + * @compatible: compatible string + * + * Lookup child node whose compatible property contains the given compatible + * string. + * + * Returns a node pointer with refcount incremented, use of_node_put() on it + * when done; or NULL if not found. + */ +struct device_node *of_get_compatible_child(const struct device_node *parent, + const char *compatible) +{ + struct device_node *child; + + for_each_child_of_node(parent, child) { + if (of_device_is_compatible(child, compatible)) + break; + } + + return child; +} +EXPORT_SYMBOL(of_get_compatible_child); + /** * of_get_child_by_name - Find the child node by name for a given parent * @node: parent node diff --git a/include/linux/of.h b/include/linux/of.h index 4d25e4f952d9..b99a1a8c2952 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -290,6 +290,8 @@ extern struct device_node *of_get_next_child(const struct device_node *node, extern struct device_node *of_get_next_available_child( const struct device_node *node, struct device_node *prev); +extern struct device_node *of_get_compatible_child(const struct device_node *parent, + const char *compatible); extern struct device_node *of_get_child_by_name(const struct device_node *node, const char *name); @@ -632,6 +634,12 @@ static inline bool of_have_populated_dt(void) return false; } +static inline struct device_node *of_get_compatible_child(const struct device_node *parent, + const char *compatible) +{ + return NULL; +} + static inline struct device_node *of_get_child_by_name( const struct device_node *node, const char *name) From 823f18f8b860526fc099c222619a126d57d2ad8c Mon Sep 17 00:00:00 2001 From: Matti Vaittinen Date: Wed, 29 Aug 2018 15:36:10 +0300 Subject: [PATCH 0309/1762] regulator: bd71837: Disable voltage monitoring for LDO3/4 There is a HW quirk in BD71837. The shutdown sequence timings for bucks/LDOs which are enabled via register interface are changed. At PMIC poweroff the voltage for BUCK6/7 is cut immediately at the beginning of shut-down sequence. This causes LDO5/6 voltage monitoring to detect under voltage and force PMIC to emergency state instead of poweroff. Disable voltage monitoring for LDO5 and LDO6 at probe to avoid this. Signed-off-by: Matti Vaittinen Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/regulator/bd71837-regulator.c | 19 +++++++++++++++ include/linux/mfd/rohm-bd718x7.h | 33 ++++++++++++++++++++++++--- 2 files changed, 49 insertions(+), 3 deletions(-) diff --git a/drivers/regulator/bd71837-regulator.c b/drivers/regulator/bd71837-regulator.c index 0f8ac8dec3e1..a1bd8aaf4d98 100644 --- a/drivers/regulator/bd71837-regulator.c +++ b/drivers/regulator/bd71837-regulator.c @@ -569,6 +569,25 @@ static int bd71837_probe(struct platform_device *pdev) BD71837_REG_REGLOCK); } + /* + * There is a HW quirk in BD71837. The shutdown sequence timings for + * bucks/LDOs which are controlled via register interface are changed. + * At PMIC poweroff the voltage for BUCK6/7 is cut immediately at the + * beginning of shut-down sequence. As bucks 6 and 7 are parent + * supplies for LDO5 and LDO6 - this causes LDO5/6 voltage + * monitoring to errorneously detect under voltage and force PMIC to + * emergency state instead of poweroff. In order to avoid this we + * disable voltage monitoring for LDO5 and LDO6 + */ + err = regmap_update_bits(pmic->mfd->regmap, BD718XX_REG_MVRFLTMASK2, + BD718XX_LDO5_VRMON80 | BD718XX_LDO6_VRMON80, + BD718XX_LDO5_VRMON80 | BD718XX_LDO6_VRMON80); + if (err) { + dev_err(&pmic->pdev->dev, + "Failed to disable voltage monitoring\n"); + goto err; + } + for (i = 0; i < ARRAY_SIZE(pmic_regulator_inits); i++) { struct regulator_desc *desc; diff --git a/include/linux/mfd/rohm-bd718x7.h b/include/linux/mfd/rohm-bd718x7.h index a528747f8aed..e8338e5dc10b 100644 --- a/include/linux/mfd/rohm-bd718x7.h +++ b/include/linux/mfd/rohm-bd718x7.h @@ -78,9 +78,9 @@ enum { BD71837_REG_TRANS_COND0 = 0x1F, BD71837_REG_TRANS_COND1 = 0x20, BD71837_REG_VRFAULTEN = 0x21, - BD71837_REG_MVRFLTMASK0 = 0x22, - BD71837_REG_MVRFLTMASK1 = 0x23, - BD71837_REG_MVRFLTMASK2 = 0x24, + BD718XX_REG_MVRFLTMASK0 = 0x22, + BD718XX_REG_MVRFLTMASK1 = 0x23, + BD718XX_REG_MVRFLTMASK2 = 0x24, BD71837_REG_RCVCFG = 0x25, BD71837_REG_RCVNUM = 0x26, BD71837_REG_PWRONCONFIG0 = 0x27, @@ -159,6 +159,33 @@ enum { #define BUCK8_MASK 0x3F #define BUCK8_DEFAULT 0x1E +/* BD718XX Voltage monitoring masks */ +#define BD718XX_BUCK1_VRMON80 0x1 +#define BD718XX_BUCK1_VRMON130 0x2 +#define BD718XX_BUCK2_VRMON80 0x4 +#define BD718XX_BUCK2_VRMON130 0x8 +#define BD718XX_1ST_NODVS_BUCK_VRMON80 0x1 +#define BD718XX_1ST_NODVS_BUCK_VRMON130 0x2 +#define BD718XX_2ND_NODVS_BUCK_VRMON80 0x4 +#define BD718XX_2ND_NODVS_BUCK_VRMON130 0x8 +#define BD718XX_3RD_NODVS_BUCK_VRMON80 0x10 +#define BD718XX_3RD_NODVS_BUCK_VRMON130 0x20 +#define BD718XX_4TH_NODVS_BUCK_VRMON80 0x40 +#define BD718XX_4TH_NODVS_BUCK_VRMON130 0x80 +#define BD718XX_LDO1_VRMON80 0x1 +#define BD718XX_LDO2_VRMON80 0x2 +#define BD718XX_LDO3_VRMON80 0x4 +#define BD718XX_LDO4_VRMON80 0x8 +#define BD718XX_LDO5_VRMON80 0x10 +#define BD718XX_LDO6_VRMON80 0x20 + +/* BD71837 specific voltage monitoring masks */ +#define BD71837_BUCK3_VRMON80 0x10 +#define BD71837_BUCK3_VRMON130 0x20 +#define BD71837_BUCK4_VRMON80 0x40 +#define BD71837_BUCK4_VRMON130 0x80 +#define BD71837_LDO7_VRMON80 0x40 + /* BD71837_REG_IRQ bits */ #define IRQ_SWRST 0x40 #define IRQ_PWRON_S 0x20 From 8f3fafc9c2f0ece10832c25f7ffcb07c97a32ad4 Mon Sep 17 00:00:00 2001 From: Scott Bauer Date: Thu, 26 Apr 2018 11:51:08 -0600 Subject: [PATCH 0310/1762] cdrom: Fix info leak/OOB read in cdrom_ioctl_drive_status Like d88b6d04: "cdrom: information leak in cdrom_ioctl_media_changed()" There is another cast from unsigned long to int which causes a bounds check to fail with specially crafted input. The value is then used as an index in the slot array in cdrom_slot_status(). Signed-off-by: Scott Bauer Signed-off-by: Scott Bauer Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe --- drivers/cdrom/cdrom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 113fc6edb2b0..a5d5a96479bf 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -2546,7 +2546,7 @@ static int cdrom_ioctl_drive_status(struct cdrom_device_info *cdi, if (!CDROM_CAN(CDC_SELECT_DISC) || (arg == CDSL_CURRENT || arg == CDSL_NONE)) return cdi->ops->drive_status(cdi, CDSL_CURRENT); - if (((int)arg >= cdi->capacity)) + if (arg >= cdi->capacity) return -EINVAL; return cdrom_slot_status(cdi, arg); } From 26bcf1c368d9460987d597fb0476d60e51a1bf82 Mon Sep 17 00:00:00 2001 From: Jerome Brunet Date: Wed, 29 Aug 2018 17:00:48 +0200 Subject: [PATCH 0311/1762] ASoC: dmic: add Kconfig prompt for the generic dmic codec. Add Kconfig prompt for the generic digital mic to make it configurable through menuconfig Signed-off-by: Jerome Brunet Signed-off-by: Mark Brown --- sound/soc/codecs/Kconfig | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index adaf26e1989c..9989d35e0fc6 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -578,7 +578,11 @@ config SND_SOC_DA9055 tristate config SND_SOC_DMIC - tristate + tristate "Generic Digital Microphone CODEC" + depends on GPIOLIB + help + Enable support for the Generic Digital Microphone CODEC. + Select this if your sound card has DMICs. config SND_SOC_HDMI_CODEC tristate From cb06a037f8362e250a6e61872ffa01ab086ec9e2 Mon Sep 17 00:00:00 2001 From: Jerome Brunet Date: Wed, 29 Aug 2018 17:00:49 +0200 Subject: [PATCH 0312/1762] ASoC: dmic: add DT module alias Before this patch the only alias provided by the dmic module is: alias: platform:dmic-codec Device instantiated from DT will not probe automatically with this After this patch, here is the new alias list: alias: platform:dmic-codec alias: of:N*T*Cdmic-codecC* alias: of:N*T*Cdmic-codec Now the dmic codec probes automatically when instantiated from DT. Signed-off-by: Jerome Brunet Signed-off-by: Mark Brown --- sound/soc/codecs/dmic.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/codecs/dmic.c b/sound/soc/codecs/dmic.c index 8c4926df9286..71322e0410ee 100644 --- a/sound/soc/codecs/dmic.c +++ b/sound/soc/codecs/dmic.c @@ -148,6 +148,7 @@ static const struct of_device_id dmic_dev_match[] = { {.compatible = "dmic-codec"}, {} }; +MODULE_DEVICE_TABLE(of, dmic_dev_match); static struct platform_driver dmic_driver = { .driver = { From 5cc3f8f89f2a42992315c4917e0c67ccb0269dec Mon Sep 17 00:00:00 2001 From: Jerome Brunet Date: Wed, 29 Aug 2018 17:00:50 +0200 Subject: [PATCH 0313/1762] ASoC: meson: add axg pdm input DT binding documentation Add the DT binding documentation for axg's PDM input Signed-off-by: Jerome Brunet Signed-off-by: Mark Brown --- .../bindings/sound/amlogic,axg-pdm.txt | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt b/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt new file mode 100644 index 000000000000..5672d0bc5b16 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt @@ -0,0 +1,24 @@ +* Amlogic Audio PDM input + +Required properties: +- compatible: 'amlogic,axg-pdm' +- reg: physical base address of the controller and length of memory + mapped region. +- clocks: list of clock phandle, one for each entry clock-names. +- clock-names: should contain the following: + * "pclk" : peripheral clock. + * "dclk" : pdm digital clock + * "sysclk" : dsp system clock +- #sound-dai-cells: must be 0. + +Example of PDM on the A113 SoC: + +pdm: audio-controller@ff632000 { + compatible = "amlogic,axg-pdm"; + reg = <0x0 0xff632000 0x0 0x34>; + #sound-dai-cells = <0>; + clocks = <&clkc_audio AUD_CLKID_PDM>, + <&clkc_audio AUD_CLKID_PDM_DCLK>, + <&clkc_audio AUD_CLKID_PDM_SYSCLK>; + clock-names = "pclk", "dclk", "sysclk"; +}; From 2cfc123eea7477f26f59506fb45f25cb09ee1591 Mon Sep 17 00:00:00 2001 From: Jerome Brunet Date: Wed, 29 Aug 2018 17:00:51 +0200 Subject: [PATCH 0314/1762] ASoC: meson: add axg pdm input Add pdm input driver for the device found on the amlogic AXG SoC family Signed-off-by: Jerome Brunet Signed-off-by: Mark Brown --- sound/soc/meson/Kconfig | 9 + sound/soc/meson/Makefile | 2 + sound/soc/meson/axg-pdm.c | 654 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 665 insertions(+) create mode 100644 sound/soc/meson/axg-pdm.c diff --git a/sound/soc/meson/Kconfig b/sound/soc/meson/Kconfig index 2ccbadc387de..8b8426ed2363 100644 --- a/sound/soc/meson/Kconfig +++ b/sound/soc/meson/Kconfig @@ -54,6 +54,7 @@ config SND_MESON_AXG_SOUND_CARD imply SND_MESON_AXG_TDMIN imply SND_MESON_AXG_TDMOUT imply SND_MESON_AXG_SPDIFOUT + imply SND_MESON_AXG_PDM help Select Y or M to add support for the AXG SoC sound card @@ -66,4 +67,12 @@ config SND_MESON_AXG_SPDIFOUT Select Y or M to add support for SPDIF output serializer embedded in the Amlogic AXG SoC family +config SND_MESON_AXG_PDM + tristate "Amlogic AXG PDM Input Support" + imply SND_SOC_DMIC + imply COMMON_CLK_AXG_AUDIO + help + Select Y or M to add support for PDM input embedded + in the Amlogic AXG SoC family + endmenu diff --git a/sound/soc/meson/Makefile b/sound/soc/meson/Makefile index c5e003b093db..4cd25104029d 100644 --- a/sound/soc/meson/Makefile +++ b/sound/soc/meson/Makefile @@ -9,6 +9,7 @@ snd-soc-meson-axg-tdmin-objs := axg-tdmin.o snd-soc-meson-axg-tdmout-objs := axg-tdmout.o snd-soc-meson-axg-sound-card-objs := axg-card.o snd-soc-meson-axg-spdifout-objs := axg-spdifout.o +snd-soc-meson-axg-pdm-objs := axg-pdm.o obj-$(CONFIG_SND_MESON_AXG_FIFO) += snd-soc-meson-axg-fifo.o obj-$(CONFIG_SND_MESON_AXG_FRDDR) += snd-soc-meson-axg-frddr.o @@ -19,3 +20,4 @@ obj-$(CONFIG_SND_MESON_AXG_TDMIN) += snd-soc-meson-axg-tdmin.o obj-$(CONFIG_SND_MESON_AXG_TDMOUT) += snd-soc-meson-axg-tdmout.o obj-$(CONFIG_SND_MESON_AXG_SOUND_CARD) += snd-soc-meson-axg-sound-card.o obj-$(CONFIG_SND_MESON_AXG_SPDIFOUT) += snd-soc-meson-axg-spdifout.o +obj-$(CONFIG_SND_MESON_AXG_PDM) += snd-soc-meson-axg-pdm.o diff --git a/sound/soc/meson/axg-pdm.c b/sound/soc/meson/axg-pdm.c new file mode 100644 index 000000000000..9d5684493ffc --- /dev/null +++ b/sound/soc/meson/axg-pdm.c @@ -0,0 +1,654 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +// +// Copyright (c) 2018 BayLibre, SAS. +// Author: Jerome Brunet + +#include +#include +#include +#include +#include +#include +#include +#include + +#define PDM_CTRL 0x00 +#define PDM_CTRL_EN BIT(31) +#define PDM_CTRL_OUT_MODE BIT(29) +#define PDM_CTRL_BYPASS_MODE BIT(28) +#define PDM_CTRL_RST_FIFO BIT(16) +#define PDM_CTRL_CHAN_RSTN_MASK GENMASK(15, 8) +#define PDM_CTRL_CHAN_RSTN(x) ((x) << 8) +#define PDM_CTRL_CHAN_EN_MASK GENMASK(7, 0) +#define PDM_CTRL_CHAN_EN(x) ((x) << 0) +#define PDM_HCIC_CTRL1 0x04 +#define PDM_FILTER_EN BIT(31) +#define PDM_HCIC_CTRL1_GAIN_SFT_MASK GENMASK(29, 24) +#define PDM_HCIC_CTRL1_GAIN_SFT(x) ((x) << 24) +#define PDM_HCIC_CTRL1_GAIN_MULT_MASK GENMASK(23, 16) +#define PDM_HCIC_CTRL1_GAIN_MULT(x) ((x) << 16) +#define PDM_HCIC_CTRL1_DSR_MASK GENMASK(8, 4) +#define PDM_HCIC_CTRL1_DSR(x) ((x) << 4) +#define PDM_HCIC_CTRL1_STAGE_NUM_MASK GENMASK(3, 0) +#define PDM_HCIC_CTRL1_STAGE_NUM(x) ((x) << 0) +#define PDM_HCIC_CTRL2 0x08 +#define PDM_F1_CTRL 0x0c +#define PDM_LPF_ROUND_MODE_MASK GENMASK(17, 16) +#define PDM_LPF_ROUND_MODE(x) ((x) << 16) +#define PDM_LPF_DSR_MASK GENMASK(15, 12) +#define PDM_LPF_DSR(x) ((x) << 12) +#define PDM_LPF_STAGE_NUM_MASK GENMASK(8, 0) +#define PDM_LPF_STAGE_NUM(x) ((x) << 0) +#define PDM_LPF_MAX_STAGE 336 +#define PDM_LPF_NUM 3 +#define PDM_F2_CTRL 0x10 +#define PDM_F3_CTRL 0x14 +#define PDM_HPF_CTRL 0x18 +#define PDM_HPF_SFT_STEPS_MASK GENMASK(20, 16) +#define PDM_HPF_SFT_STEPS(x) ((x) << 16) +#define PDM_HPF_OUT_FACTOR_MASK GENMASK(15, 0) +#define PDM_HPF_OUT_FACTOR(x) ((x) << 0) +#define PDM_CHAN_CTRL 0x1c +#define PDM_CHAN_CTRL_POINTER_WIDTH 8 +#define PDM_CHAN_CTRL_POINTER_MAX ((1 << PDM_CHAN_CTRL_POINTER_WIDTH) - 1) +#define PDM_CHAN_CTRL_NUM 4 +#define PDM_CHAN_CTRL1 0x20 +#define PDM_COEFF_ADDR 0x24 +#define PDM_COEFF_DATA 0x28 +#define PDM_CLKG_CTRL 0x2c +#define PDM_STS 0x30 + +struct axg_pdm_lpf { + unsigned int ds; + unsigned int round_mode; + const unsigned int *tap; + unsigned int tap_num; +}; + +struct axg_pdm_hcic { + unsigned int shift; + unsigned int mult; + unsigned int steps; + unsigned int ds; +}; + +struct axg_pdm_hpf { + unsigned int out_factor; + unsigned int steps; +}; + +struct axg_pdm_filters { + struct axg_pdm_hcic hcic; + struct axg_pdm_hpf hpf; + struct axg_pdm_lpf lpf[PDM_LPF_NUM]; +}; + +struct axg_pdm_cfg { + const struct axg_pdm_filters *filters; + unsigned int sys_rate; +}; + +struct axg_pdm { + const struct axg_pdm_cfg *cfg; + struct regmap *map; + struct clk *dclk; + struct clk *sysclk; + struct clk *pclk; +}; + +static void axg_pdm_enable(struct regmap *map) +{ + /* Reset AFIFO */ + regmap_update_bits(map, PDM_CTRL, PDM_CTRL_RST_FIFO, PDM_CTRL_RST_FIFO); + regmap_update_bits(map, PDM_CTRL, PDM_CTRL_RST_FIFO, 0); + + /* Enable PDM */ + regmap_update_bits(map, PDM_CTRL, PDM_CTRL_EN, PDM_CTRL_EN); +} + +static void axg_pdm_disable(struct regmap *map) +{ + regmap_update_bits(map, PDM_CTRL, PDM_CTRL_EN, 0); +} + +static void axg_pdm_filters_enable(struct regmap *map, bool enable) +{ + unsigned int val = enable ? PDM_FILTER_EN : 0; + + regmap_update_bits(map, PDM_HCIC_CTRL1, PDM_FILTER_EN, val); + regmap_update_bits(map, PDM_F1_CTRL, PDM_FILTER_EN, val); + regmap_update_bits(map, PDM_F2_CTRL, PDM_FILTER_EN, val); + regmap_update_bits(map, PDM_F3_CTRL, PDM_FILTER_EN, val); + regmap_update_bits(map, PDM_HPF_CTRL, PDM_FILTER_EN, val); +} + +static int axg_pdm_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct axg_pdm *priv = snd_soc_dai_get_drvdata(dai); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + axg_pdm_enable(priv->map); + return 0; + + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + axg_pdm_disable(priv->map); + return 0; + + default: + return -EINVAL; + } +} + +static unsigned int axg_pdm_get_os(struct axg_pdm *priv) +{ + const struct axg_pdm_filters *filters = priv->cfg->filters; + unsigned int os = filters->hcic.ds; + int i; + + /* + * The global oversampling factor is defined by the down sampling + * factor applied by each filter (HCIC and LPFs) + */ + + for (i = 0; i < PDM_LPF_NUM; i++) + os *= filters->lpf[i].ds; + + return os; +} + +static int axg_pdm_set_sysclk(struct axg_pdm *priv, unsigned int os, + unsigned int rate) +{ + unsigned int sys_rate = os * 2 * rate * PDM_CHAN_CTRL_POINTER_MAX; + + /* + * Set the default system clock rate unless it is too fast for + * for the requested sample rate. In this case, the sample pointer + * counter could overflow so set a lower system clock rate + */ + if (sys_rate < priv->cfg->sys_rate) + return clk_set_rate(priv->sysclk, sys_rate); + + return clk_set_rate(priv->sysclk, priv->cfg->sys_rate); +} + +static int axg_pdm_set_sample_pointer(struct axg_pdm *priv) +{ + unsigned int spmax, sp, val; + int i; + + /* Max sample counter value per half period of dclk */ + spmax = DIV_ROUND_UP_ULL((u64)clk_get_rate(priv->sysclk), + clk_get_rate(priv->dclk) * 2); + + /* Check if sysclk is not too fast - should not happen */ + if (WARN_ON(spmax > PDM_CHAN_CTRL_POINTER_MAX)) + return -EINVAL; + + /* Capture the data when we are at 75% of the half period */ + sp = spmax * 3 / 4; + + for (i = 0, val = 0; i < PDM_CHAN_CTRL_NUM; i++) + val |= sp << (PDM_CHAN_CTRL_POINTER_WIDTH * i); + + regmap_write(priv->map, PDM_CHAN_CTRL, val); + regmap_write(priv->map, PDM_CHAN_CTRL1, val); + + return 0; +} + +static void axg_pdm_set_channel_mask(struct axg_pdm *priv, + unsigned int channels) +{ + unsigned int mask = GENMASK(channels - 1, 0); + + /* Put all channel in reset */ + regmap_update_bits(priv->map, PDM_CTRL, + PDM_CTRL_CHAN_RSTN_MASK, 0); + + /* Take the necessary channels out of reset and enable them */ + regmap_update_bits(priv->map, PDM_CTRL, + PDM_CTRL_CHAN_RSTN_MASK | + PDM_CTRL_CHAN_EN_MASK, + PDM_CTRL_CHAN_RSTN(mask) | + PDM_CTRL_CHAN_EN(mask)); +} + +static int axg_pdm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct axg_pdm *priv = snd_soc_dai_get_drvdata(dai); + unsigned int os = axg_pdm_get_os(priv); + unsigned int rate = params_rate(params); + unsigned int val; + int ret; + + switch (params_width(params)) { + case 24: + val = PDM_CTRL_OUT_MODE; + break; + case 32: + val = 0; + break; + default: + dev_err(dai->dev, "unsupported sample width\n"); + return -EINVAL; + } + + regmap_update_bits(priv->map, PDM_CTRL, PDM_CTRL_OUT_MODE, val); + + ret = axg_pdm_set_sysclk(priv, os, rate); + if (ret) { + dev_err(dai->dev, "failed to set system clock\n"); + return ret; + } + + ret = clk_set_rate(priv->dclk, rate * os); + if (ret) { + dev_err(dai->dev, "failed to set dclk\n"); + return ret; + } + + ret = axg_pdm_set_sample_pointer(priv); + if (ret) { + dev_err(dai->dev, "invalid clock setting\n"); + return ret; + } + + axg_pdm_set_channel_mask(priv, params_channels(params)); + + return 0; +} + +static int axg_pdm_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct axg_pdm *priv = snd_soc_dai_get_drvdata(dai); + int ret; + + ret = clk_prepare_enable(priv->dclk); + if (ret) { + dev_err(dai->dev, "enabling dclk failed\n"); + return ret; + } + + /* Enable the filters */ + axg_pdm_filters_enable(priv->map, true); + + return ret; +} + +static void axg_pdm_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct axg_pdm *priv = snd_soc_dai_get_drvdata(dai); + + axg_pdm_filters_enable(priv->map, false); + clk_disable_unprepare(priv->dclk); +} + +static const struct snd_soc_dai_ops axg_pdm_dai_ops = { + .trigger = axg_pdm_trigger, + .hw_params = axg_pdm_hw_params, + .startup = axg_pdm_startup, + .shutdown = axg_pdm_shutdown, +}; + +static void axg_pdm_set_hcic_ctrl(struct axg_pdm *priv) +{ + const struct axg_pdm_hcic *hcic = &priv->cfg->filters->hcic; + unsigned int val; + + val = PDM_HCIC_CTRL1_STAGE_NUM(hcic->steps); + val |= PDM_HCIC_CTRL1_DSR(hcic->ds); + val |= PDM_HCIC_CTRL1_GAIN_MULT(hcic->mult); + val |= PDM_HCIC_CTRL1_GAIN_SFT(hcic->shift); + + regmap_update_bits(priv->map, PDM_HCIC_CTRL1, + PDM_HCIC_CTRL1_STAGE_NUM_MASK | + PDM_HCIC_CTRL1_DSR_MASK | + PDM_HCIC_CTRL1_GAIN_MULT_MASK | + PDM_HCIC_CTRL1_GAIN_SFT_MASK, + val); +} + +static void axg_pdm_set_lpf_ctrl(struct axg_pdm *priv, unsigned int index) +{ + const struct axg_pdm_lpf *lpf = &priv->cfg->filters->lpf[index]; + unsigned int offset = index * regmap_get_reg_stride(priv->map) + + PDM_F1_CTRL; + unsigned int val; + + val = PDM_LPF_STAGE_NUM(lpf->tap_num); + val |= PDM_LPF_DSR(lpf->ds); + val |= PDM_LPF_ROUND_MODE(lpf->round_mode); + + regmap_update_bits(priv->map, offset, + PDM_LPF_STAGE_NUM_MASK | + PDM_LPF_DSR_MASK | + PDM_LPF_ROUND_MODE_MASK, + val); +} + +static void axg_pdm_set_hpf_ctrl(struct axg_pdm *priv) +{ + const struct axg_pdm_hpf *hpf = &priv->cfg->filters->hpf; + unsigned int val; + + val = PDM_HPF_OUT_FACTOR(hpf->out_factor); + val |= PDM_HPF_SFT_STEPS(hpf->steps); + + regmap_update_bits(priv->map, PDM_HPF_CTRL, + PDM_HPF_OUT_FACTOR_MASK | + PDM_HPF_SFT_STEPS_MASK, + val); +} + +static int axg_pdm_set_lpf_filters(struct axg_pdm *priv) +{ + const struct axg_pdm_lpf *lpf = priv->cfg->filters->lpf; + unsigned int count = 0; + int i, j; + + for (i = 0; i < PDM_LPF_NUM; i++) + count += lpf[i].tap_num; + + /* Make sure the coeffs fit in the memory */ + if (count >= PDM_LPF_MAX_STAGE) + return -EINVAL; + + /* Set the initial APB bus register address */ + regmap_write(priv->map, PDM_COEFF_ADDR, 0); + + /* Set the tap filter values of all 3 filters */ + for (i = 0; i < PDM_LPF_NUM; i++) { + axg_pdm_set_lpf_ctrl(priv, i); + + for (j = 0; j < lpf[i].tap_num; j++) + regmap_write(priv->map, PDM_COEFF_DATA, lpf[i].tap[j]); + } + + return 0; +} + +static int axg_pdm_dai_probe(struct snd_soc_dai *dai) +{ + struct axg_pdm *priv = snd_soc_dai_get_drvdata(dai); + int ret; + + ret = clk_prepare_enable(priv->pclk); + if (ret) { + dev_err(dai->dev, "enabling pclk failed\n"); + return ret; + } + + /* + * sysclk must be set and enabled as well to access the pdm registers + * Accessing the register w/o it will give a bus error. + */ + ret = clk_set_rate(priv->sysclk, priv->cfg->sys_rate); + if (ret) { + dev_err(dai->dev, "setting sysclk failed\n"); + goto err_pclk; + } + + ret = clk_prepare_enable(priv->sysclk); + if (ret) { + dev_err(dai->dev, "enabling sysclk failed\n"); + goto err_pclk; + } + + /* Make sure the device is initially disabled */ + axg_pdm_disable(priv->map); + + /* Make sure filter bypass is disabled */ + regmap_update_bits(priv->map, PDM_CTRL, PDM_CTRL_BYPASS_MODE, 0); + + /* Load filter settings */ + axg_pdm_set_hcic_ctrl(priv); + axg_pdm_set_hpf_ctrl(priv); + + ret = axg_pdm_set_lpf_filters(priv); + if (ret) { + dev_err(dai->dev, "invalid filter configuration\n"); + goto err_sysclk; + } + + return 0; + +err_sysclk: + clk_disable_unprepare(priv->sysclk); +err_pclk: + clk_disable_unprepare(priv->pclk); + return ret; +} + +static int axg_pdm_dai_remove(struct snd_soc_dai *dai) +{ + struct axg_pdm *priv = snd_soc_dai_get_drvdata(dai); + + clk_disable_unprepare(priv->sysclk); + clk_disable_unprepare(priv->pclk); + + return 0; +} + +static struct snd_soc_dai_driver axg_pdm_dai_drv = { + .name = "PDM", + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 5512, + .rate_max = 48000, + .formats = (SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE), + }, + .ops = &axg_pdm_dai_ops, + .probe = axg_pdm_dai_probe, + .remove = axg_pdm_dai_remove, +}; + +static const struct snd_soc_component_driver axg_pdm_component_drv = {}; + +static const struct regmap_config axg_pdm_regmap_cfg = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .max_register = PDM_STS, +}; + +static const unsigned int lpf1_default_tap[] = { + 0x000014, 0xffffb2, 0xfffed9, 0xfffdce, 0xfffd45, + 0xfffe32, 0x000147, 0x000645, 0x000b86, 0x000e21, + 0x000ae3, 0x000000, 0xffeece, 0xffdca8, 0xffd212, + 0xffd7d1, 0xfff2a7, 0x001f4c, 0x0050c2, 0x0072aa, + 0x006ff1, 0x003c32, 0xffdc4e, 0xff6a18, 0xff0fef, + 0xfefbaf, 0xff4c40, 0x000000, 0x00ebc8, 0x01c077, + 0x02209e, 0x01c1a4, 0x008e60, 0xfebe52, 0xfcd690, + 0xfb8fa5, 0xfba498, 0xfd9812, 0x0181ce, 0x06f5f3, + 0x0d112f, 0x12a958, 0x169686, 0x18000e, 0x169686, + 0x12a958, 0x0d112f, 0x06f5f3, 0x0181ce, 0xfd9812, + 0xfba498, 0xfb8fa5, 0xfcd690, 0xfebe52, 0x008e60, + 0x01c1a4, 0x02209e, 0x01c077, 0x00ebc8, 0x000000, + 0xff4c40, 0xfefbaf, 0xff0fef, 0xff6a18, 0xffdc4e, + 0x003c32, 0x006ff1, 0x0072aa, 0x0050c2, 0x001f4c, + 0xfff2a7, 0xffd7d1, 0xffd212, 0xffdca8, 0xffeece, + 0x000000, 0x000ae3, 0x000e21, 0x000b86, 0x000645, + 0x000147, 0xfffe32, 0xfffd45, 0xfffdce, 0xfffed9, + 0xffffb2, 0x000014, +}; + +static const unsigned int lpf2_default_tap[] = { + 0x00050a, 0xfff004, 0x0002c1, 0x003c12, 0xffa818, + 0xffc87d, 0x010aef, 0xff5223, 0xfebd93, 0x028f41, + 0xff5c0e, 0xfc63f8, 0x055f81, 0x000000, 0xf478a0, + 0x11c5e3, 0x2ea74d, 0x11c5e3, 0xf478a0, 0x000000, + 0x055f81, 0xfc63f8, 0xff5c0e, 0x028f41, 0xfebd93, + 0xff5223, 0x010aef, 0xffc87d, 0xffa818, 0x003c12, + 0x0002c1, 0xfff004, 0x00050a, +}; + +static const unsigned int lpf3_default_tap[] = { + 0x000000, 0x000081, 0x000000, 0xfffedb, 0x000000, + 0x00022d, 0x000000, 0xfffc46, 0x000000, 0x0005f7, + 0x000000, 0xfff6eb, 0x000000, 0x000d4e, 0x000000, + 0xffed1e, 0x000000, 0x001a1c, 0x000000, 0xffdcb0, + 0x000000, 0x002ede, 0x000000, 0xffc2d1, 0x000000, + 0x004ebe, 0x000000, 0xff9beb, 0x000000, 0x007dd7, + 0x000000, 0xff633a, 0x000000, 0x00c1d2, 0x000000, + 0xff11d5, 0x000000, 0x012368, 0x000000, 0xfe9c45, + 0x000000, 0x01b252, 0x000000, 0xfdebf6, 0x000000, + 0x0290b8, 0x000000, 0xfcca0d, 0x000000, 0x041d7c, + 0x000000, 0xfa8152, 0x000000, 0x07e9c6, 0x000000, + 0xf28fb5, 0x000000, 0x28b216, 0x3fffde, 0x28b216, + 0x000000, 0xf28fb5, 0x000000, 0x07e9c6, 0x000000, + 0xfa8152, 0x000000, 0x041d7c, 0x000000, 0xfcca0d, + 0x000000, 0x0290b8, 0x000000, 0xfdebf6, 0x000000, + 0x01b252, 0x000000, 0xfe9c45, 0x000000, 0x012368, + 0x000000, 0xff11d5, 0x000000, 0x00c1d2, 0x000000, + 0xff633a, 0x000000, 0x007dd7, 0x000000, 0xff9beb, + 0x000000, 0x004ebe, 0x000000, 0xffc2d1, 0x000000, + 0x002ede, 0x000000, 0xffdcb0, 0x000000, 0x001a1c, + 0x000000, 0xffed1e, 0x000000, 0x000d4e, 0x000000, + 0xfff6eb, 0x000000, 0x0005f7, 0x000000, 0xfffc46, + 0x000000, 0x00022d, 0x000000, 0xfffedb, 0x000000, + 0x000081, 0x000000, +}; + +/* + * These values are sane defaults for the axg platform: + * - OS = 64 + * - Latency = 38700 (?) + * + * TODO: There is a lot of different HCIC, LPFs and HPF configurations possible. + * the configuration may depend on the dmic used by the platform, the + * expected tradeoff between latency and quality, etc ... If/When other + * settings are required, we should add a fw interface to this driver to + * load new filter settings. + */ +static const struct axg_pdm_filters axg_default_filters = { + .hcic = { + .shift = 0x15, + .mult = 0x80, + .steps = 7, + .ds = 8, + }, + .hpf = { + .out_factor = 0x8000, + .steps = 13, + }, + .lpf = { + [0] = { + .ds = 2, + .round_mode = 1, + .tap = lpf1_default_tap, + .tap_num = ARRAY_SIZE(lpf1_default_tap), + }, + [1] = { + .ds = 2, + .round_mode = 0, + .tap = lpf2_default_tap, + .tap_num = ARRAY_SIZE(lpf2_default_tap), + }, + [2] = { + .ds = 2, + .round_mode = 1, + .tap = lpf3_default_tap, + .tap_num = ARRAY_SIZE(lpf3_default_tap) + }, + }, +}; + +static const struct axg_pdm_cfg axg_pdm_config = { + .filters = &axg_default_filters, + .sys_rate = 250000000, +}; + +static const struct of_device_id axg_pdm_of_match[] = { + { + .compatible = "amlogic,axg-pdm", + .data = &axg_pdm_config, + }, {} +}; +MODULE_DEVICE_TABLE(of, axg_pdm_of_match); + +static int axg_pdm_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct axg_pdm *priv; + struct resource *res; + void __iomem *regs; + int ret; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + platform_set_drvdata(pdev, priv); + + priv->cfg = of_device_get_match_data(dev); + if (!priv->cfg) { + dev_err(dev, "failed to match device\n"); + return -ENODEV; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + regs = devm_ioremap_resource(dev, res); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + priv->map = devm_regmap_init_mmio(dev, regs, &axg_pdm_regmap_cfg); + if (IS_ERR(priv->map)) { + dev_err(dev, "failed to init regmap: %ld\n", + PTR_ERR(priv->map)); + return PTR_ERR(priv->map); + } + + priv->pclk = devm_clk_get(dev, "pclk"); + if (IS_ERR(priv->pclk)) { + ret = PTR_ERR(priv->pclk); + if (ret != -EPROBE_DEFER) + dev_err(dev, "failed to get pclk: %d\n", ret); + return ret; + } + + priv->dclk = devm_clk_get(dev, "dclk"); + if (IS_ERR(priv->dclk)) { + ret = PTR_ERR(priv->dclk); + if (ret != -EPROBE_DEFER) + dev_err(dev, "failed to get dclk: %d\n", ret); + return ret; + } + + priv->sysclk = devm_clk_get(dev, "sysclk"); + if (IS_ERR(priv->sysclk)) { + ret = PTR_ERR(priv->sysclk); + if (ret != -EPROBE_DEFER) + dev_err(dev, "failed to get dclk: %d\n", ret); + return ret; + } + + return devm_snd_soc_register_component(dev, &axg_pdm_component_drv, + &axg_pdm_dai_drv, 1); +} + +static struct platform_driver axg_pdm_pdrv = { + .probe = axg_pdm_probe, + .driver = { + .name = "axg-pdm", + .of_match_table = axg_pdm_of_match, + }, +}; +module_platform_driver(axg_pdm_pdrv); + +MODULE_DESCRIPTION("Amlogic AXG PDM Input driver"); +MODULE_AUTHOR("Jerome Brunet "); +MODULE_LICENSE("GPL v2"); From 4fbf51ee6e822ac28be28ff25883745131e8c4a3 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Thu, 23 Aug 2018 09:55:43 -0400 Subject: [PATCH 0315/1762] media: video_function_calls.rst: drop obsolete video-set-attributes reference This fixes this warning: Documentation/media/uapi/dvb/video_function_calls.rst:9: WARNING: toctree contains reference to nonexisting document 'uapi/dvb/video-set-attributes' Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/uapi/dvb/video_function_calls.rst | 1 - 1 file changed, 1 deletion(-) diff --git a/Documentation/media/uapi/dvb/video_function_calls.rst b/Documentation/media/uapi/dvb/video_function_calls.rst index 3f4f6c9ffad7..a4222b6cd2d3 100644 --- a/Documentation/media/uapi/dvb/video_function_calls.rst +++ b/Documentation/media/uapi/dvb/video_function_calls.rst @@ -33,4 +33,3 @@ Video Function Calls video-clear-buffer video-set-streamtype video-set-format - video-set-attributes From 0e06b227c5221dd51b5569de93f3b9f532be4a32 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Wed, 29 Aug 2018 16:50:34 +0200 Subject: [PATCH 0316/1762] bpf: fix msg->data/data_end after sg shift repair in bpf_msg_pull_data In the current code, msg->data is set as sg_virt(&sg[i]) + start - offset and msg->data_end relative to it as msg->data + bytes. Using iterator i to point to the updated starting scatterlist element holds true for some cases, however not for all where we'd end up pointing out of bounds. It is /correct/ for these ones: 1) When first finding the starting scatterlist element (sge) where we find that the page is already privately owned by the msg and where the requested bytes and headroom fit into the sge's length. However, it's /incorrect/ for the following ones: 2) After we made the requested area private and updated the newly allocated page into first_sg slot of the scatterlist ring; when we find that no shift repair of the ring is needed where we bail out updating msg->data and msg->data_end. At that point i will point to last_sg, which in this case is the next elem of first_sg in the ring. The sge at that point might as well be invalid (e.g. i == msg->sg_end), which we use for setting the range of sg_virt(&sg[i]). The correct one would have been first_sg. 3) Similar as in 2) but when we find that a shift repair of the ring is needed. In this case we fix up all sges and stop once we've reached the end. In this case i will point to will point to the new msg->sg_end, and the sge at that point will be invalid. Again here the requested range sits in first_sg. Fixes: 015632bb30da ("bpf: sk_msg program helper bpf_sk_msg_pull_data") Signed-off-by: Daniel Borkmann Acked-by: John Fastabend Signed-off-by: Alexei Starovoitov --- net/core/filter.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/net/core/filter.c b/net/core/filter.c index ec4d67c0cf0c..b9225c55926a 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -2310,6 +2310,7 @@ BPF_CALL_4(bpf_msg_pull_data, if (unlikely(start >= offset + len)) return -EINVAL; + first_sg = i; /* The start may point into the sg element so we need to also * account for the headroom. */ @@ -2317,8 +2318,6 @@ BPF_CALL_4(bpf_msg_pull_data, if (!msg->sg_copy[i] && bytes_sg_total <= len) goto out; - first_sg = i; - /* At this point we need to linearize multiple scatterlist * elements or a single shared page. Either way we need to * copy into a linear buffer exclusively owned by BPF. Then @@ -2400,7 +2399,7 @@ BPF_CALL_4(bpf_msg_pull_data, if (msg->sg_end < 0) msg->sg_end += MAX_SKB_FRAGS; out: - msg->data = sg_virt(&sg[i]) + start - offset; + msg->data = sg_virt(&sg[first_sg]) + start - offset; msg->data_end = msg->data + bytes; return 0; From 2e43f95dd8ee62bc8bf57f2afac37fbd70c8d565 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Wed, 29 Aug 2018 16:50:35 +0200 Subject: [PATCH 0317/1762] bpf: fix shift upon scatterlist ring wrap-around in bpf_msg_pull_data If first_sg and last_sg wraps around in the scatterlist ring, then we need to account for that in the shift as well. E.g. crafting such msgs where this is the case leads to a hang as shift becomes negative. E.g. consider the following scenario: first_sg := 14 |=> shift := -12 msg->sg_start := 10 last_sg := 3 | msg->sg_end := 5 round 1: i := 15, move_from := 3, sg[15] := sg[ 3] round 2: i := 0, move_from := -12, sg[ 0] := sg[-12] round 3: i := 1, move_from := -11, sg[ 1] := sg[-11] round 4: i := 2, move_from := -10, sg[ 2] := sg[-10] [...] round 13: i := 11, move_from := -1, sg[ 2] := sg[ -1] round 14: i := 12, move_from := 0, sg[ 2] := sg[ 0] round 15: i := 13, move_from := 1, sg[ 2] := sg[ 1] round 16: i := 14, move_from := 2, sg[ 2] := sg[ 2] round 17: i := 15, move_from := 3, sg[ 2] := sg[ 3] [...] This means we will loop forever and never hit the msg->sg_end condition to break out of the loop. When we see that the ring wraps around, then the shift should be MAX_SKB_FRAGS - first_sg + last_sg - 1. Meaning, the remainder slots from the tail of the ring and the head until last_sg combined. Fixes: 015632bb30da ("bpf: sk_msg program helper bpf_sk_msg_pull_data") Signed-off-by: Daniel Borkmann Acked-by: John Fastabend Signed-off-by: Alexei Starovoitov --- net/core/filter.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/core/filter.c b/net/core/filter.c index b9225c55926a..43ba5f8c38ca 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -2370,7 +2370,10 @@ BPF_CALL_4(bpf_msg_pull_data, * had a single entry though we can just replace it and * be done. Otherwise walk the ring and shift the entries. */ - shift = last_sg - first_sg - 1; + WARN_ON_ONCE(last_sg == first_sg); + shift = last_sg > first_sg ? + last_sg - first_sg - 1 : + MAX_SKB_FRAGS - first_sg + last_sg - 1; if (!shift) goto out; From a8cf76a9023bc6709b1361d06bb2fae5227b9d68 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Wed, 29 Aug 2018 16:50:36 +0200 Subject: [PATCH 0318/1762] bpf: fix sg shift repair start offset in bpf_msg_pull_data When we perform the sg shift repair for the scatterlist ring, we currently start out at i = first_sg + 1. However, this is not correct since the first_sg could point to the sge sitting at slot MAX_SKB_FRAGS - 1, and a subsequent i = MAX_SKB_FRAGS will access the scatterlist ring (sg) out of bounds. Add the sk_msg_iter_var() helper for iterating through the ring, and apply the same rule for advancing to the next ring element as we do elsewhere. Later work will use this helper also in other places. Fixes: 015632bb30da ("bpf: sk_msg program helper bpf_sk_msg_pull_data") Signed-off-by: Daniel Borkmann Acked-by: John Fastabend Signed-off-by: Alexei Starovoitov --- net/core/filter.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/net/core/filter.c b/net/core/filter.c index 43ba5f8c38ca..2c7801f6737a 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -2282,6 +2282,13 @@ static const struct bpf_func_proto bpf_msg_cork_bytes_proto = { .arg2_type = ARG_ANYTHING, }; +#define sk_msg_iter_var(var) \ + do { \ + var++; \ + if (var == MAX_SKB_FRAGS) \ + var = 0; \ + } while (0) + BPF_CALL_4(bpf_msg_pull_data, struct sk_msg_buff *, msg, u32, start, u32, end, u64, flags) { @@ -2302,9 +2309,7 @@ BPF_CALL_4(bpf_msg_pull_data, if (start < offset + len) break; offset += len; - i++; - if (i == MAX_SKB_FRAGS) - i = 0; + sk_msg_iter_var(i); } while (i != msg->sg_end); if (unlikely(start >= offset + len)) @@ -2330,9 +2335,7 @@ BPF_CALL_4(bpf_msg_pull_data, */ do { copy += sg[i].length; - i++; - if (i == MAX_SKB_FRAGS) - i = 0; + sk_msg_iter_var(i); if (bytes_sg_total <= copy) break; } while (i != msg->sg_end); @@ -2358,9 +2361,7 @@ BPF_CALL_4(bpf_msg_pull_data, sg[i].length = 0; put_page(sg_page(&sg[i])); - i++; - if (i == MAX_SKB_FRAGS) - i = 0; + sk_msg_iter_var(i); } while (i != last_sg); sg[first_sg].length = copy; @@ -2377,7 +2378,8 @@ BPF_CALL_4(bpf_msg_pull_data, if (!shift) goto out; - i = first_sg + 1; + i = first_sg; + sk_msg_iter_var(i); do { int move_from; @@ -2394,9 +2396,7 @@ BPF_CALL_4(bpf_msg_pull_data, sg[move_from].page_link = 0; sg[move_from].offset = 0; - i++; - if (i == MAX_SKB_FRAGS) - i = 0; + sk_msg_iter_var(i); } while (1); msg->sg_end -= shift; if (msg->sg_end < 0) From 312f73b648626a0526a3aceebb0a3192aaba05ce Mon Sep 17 00:00:00 2001 From: Jozef Balga Date: Tue, 21 Aug 2018 05:01:04 -0400 Subject: [PATCH 0319/1762] media: af9035: prevent buffer overflow on write When less than 3 bytes are written to the device, memcpy is called with negative array size which leads to buffer overflow and kernel panic. This patch adds a condition and returns -EOPNOTSUPP instead. Fixes bugzilla issue 64871 [mchehab+samsung@kernel.org: fix a merge conflict and changed the condition to match the patch's comment, e. g. len == 3 could also be valid] Signed-off-by: Jozef Balga Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/dvb-usb-v2/af9035.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c index 666d319d3d1a..1f6c1eefe389 100644 --- a/drivers/media/usb/dvb-usb-v2/af9035.c +++ b/drivers/media/usb/dvb-usb-v2/af9035.c @@ -402,8 +402,10 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap, if (msg[0].addr == state->af9033_i2c_addr[1]) reg |= 0x100000; - ret = af9035_wr_regs(d, reg, &msg[0].buf[3], - msg[0].len - 3); + ret = (msg[0].len >= 3) ? af9035_wr_regs(d, reg, + &msg[0].buf[3], + msg[0].len - 3) + : -EOPNOTSUPP; } else { /* I2C write */ u8 buf[MAX_XFER_SIZE]; From 44a9ffd4eb99ada6c1496a735a414414fef30696 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 17 Aug 2018 05:53:42 -0400 Subject: [PATCH 0320/1762] media: camss: mark PM functions as __maybe_unused The empty suspend/resume functions cause a build warning when they are unused: drivers/media/platform/qcom/camss/camss.c:1001:12: error: 'camss_runtime_resume' defined but not used [-Werror=unused-function] drivers/media/platform/qcom/camss/camss.c:996:12: error: 'camss_runtime_suspend' defined but not used [-Werror=unused-function] Mark them as __maybe_unused so the compiler can silently drop them. Fixes: 02afa816dbbf ("media: camss: Add basic runtime PM support") Signed-off-by: Arnd Bergmann Acked-by: Todor Tomov Acked-by: Geert Uytterhoeven Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/qcom/camss/camss.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c index dcc0c30ef1b1..9f19d5f5966b 100644 --- a/drivers/media/platform/qcom/camss/camss.c +++ b/drivers/media/platform/qcom/camss/camss.c @@ -993,12 +993,12 @@ static const struct of_device_id camss_dt_match[] = { MODULE_DEVICE_TABLE(of, camss_dt_match); -static int camss_runtime_suspend(struct device *dev) +static int __maybe_unused camss_runtime_suspend(struct device *dev) { return 0; } -static int camss_runtime_resume(struct device *dev) +static int __maybe_unused camss_runtime_resume(struct device *dev) { return 0; } From 55b518998996cc935d294bbf1f07ddba58b8b89e Mon Sep 17 00:00:00 2001 From: Todor Tomov Date: Tue, 14 Aug 2018 11:57:35 -0400 Subject: [PATCH 0321/1762] media: camss: Use managed memory allocations Use managed memory allocations for structs which are used until the driver is removed. Signed-off-by: Todor Tomov Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/qcom/camss/camss-ispif.c | 4 ++-- drivers/media/platform/qcom/camss/camss.c | 11 ++++++----- 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/media/platform/qcom/camss/camss-ispif.c b/drivers/media/platform/qcom/camss/camss-ispif.c index 7f269021d08c..ca7b0917500d 100644 --- a/drivers/media/platform/qcom/camss/camss-ispif.c +++ b/drivers/media/platform/qcom/camss/camss-ispif.c @@ -1076,8 +1076,8 @@ int msm_ispif_subdev_init(struct ispif_device *ispif, else return -EINVAL; - ispif->line = kcalloc(ispif->line_num, sizeof(*ispif->line), - GFP_KERNEL); + ispif->line = devm_kcalloc(dev, ispif->line_num, sizeof(*ispif->line), + GFP_KERNEL); if (!ispif->line) return -ENOMEM; diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c index 9f19d5f5966b..669615fff6a0 100644 --- a/drivers/media/platform/qcom/camss/camss.c +++ b/drivers/media/platform/qcom/camss/camss.c @@ -848,17 +848,18 @@ static int camss_probe(struct platform_device *pdev) return -EINVAL; } - camss->csiphy = kcalloc(camss->csiphy_num, sizeof(*camss->csiphy), - GFP_KERNEL); + camss->csiphy = devm_kcalloc(dev, camss->csiphy_num, + sizeof(*camss->csiphy), GFP_KERNEL); if (!camss->csiphy) return -ENOMEM; - camss->csid = kcalloc(camss->csid_num, sizeof(*camss->csid), - GFP_KERNEL); + camss->csid = devm_kcalloc(dev, camss->csid_num, sizeof(*camss->csid), + GFP_KERNEL); if (!camss->csid) return -ENOMEM; - camss->vfe = kcalloc(camss->vfe_num, sizeof(*camss->vfe), GFP_KERNEL); + camss->vfe = devm_kcalloc(dev, camss->vfe_num, sizeof(*camss->vfe), + GFP_KERNEL); if (!camss->vfe) return -ENOMEM; From 3799eca51c5be3cd76047a582ac52087373b54b3 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 15 Aug 2018 06:27:28 -0400 Subject: [PATCH 0322/1762] media: camss: add missing includes Multiple files in this driver fail to build because of missing header inclusions: drivers/media/platform/qcom/camss/camss-csiphy-2ph-1-0.c: In function 'csiphy_hw_version_read': drivers/media/platform/qcom/camss/camss-csiphy-2ph-1-0.c:31:18: error: implicit declaration of function 'readl_relaxed'; did you mean 'xchg_relaxed'? [-Werror=implicit-function-declaration] drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c: In function 'csiphy_hw_version_read': drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c:52:2: error: implicit declaration of function 'writel' [-Werror=implicit-function-declaration] Add linux/io.h there and in all other files that call readl/writel and related interfaces. Signed-off-by: Arnd Bergmann Signed-off-by: Todor Tomov Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/qcom/camss/camss-csid.c | 1 + drivers/media/platform/qcom/camss/camss-csiphy-2ph-1-0.c | 1 + drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c | 1 + drivers/media/platform/qcom/camss/camss-csiphy.c | 1 + drivers/media/platform/qcom/camss/camss-ispif.c | 1 + drivers/media/platform/qcom/camss/camss-vfe-4-1.c | 1 + drivers/media/platform/qcom/camss/camss-vfe-4-7.c | 1 + 7 files changed, 7 insertions(+) diff --git a/drivers/media/platform/qcom/camss/camss-csid.c b/drivers/media/platform/qcom/camss/camss-csid.c index 729b31891466..a5ae85674ffb 100644 --- a/drivers/media/platform/qcom/camss/camss-csid.c +++ b/drivers/media/platform/qcom/camss/camss-csid.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/media/platform/qcom/camss/camss-csiphy-2ph-1-0.c b/drivers/media/platform/qcom/camss/camss-csiphy-2ph-1-0.c index c832539397d7..12bce391d71f 100644 --- a/drivers/media/platform/qcom/camss/camss-csiphy-2ph-1-0.c +++ b/drivers/media/platform/qcom/camss/camss-csiphy-2ph-1-0.c @@ -12,6 +12,7 @@ #include #include +#include #define CAMSS_CSI_PHY_LNn_CFG2(n) (0x004 + 0x40 * (n)) #define CAMSS_CSI_PHY_LNn_CFG3(n) (0x008 + 0x40 * (n)) diff --git a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c index bcd0dfd33618..2e65caf1ecae 100644 --- a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c +++ b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c @@ -12,6 +12,7 @@ #include #include +#include #define CSIPHY_3PH_LNn_CFG1(n) (0x000 + 0x100 * (n)) #define CSIPHY_3PH_LNn_CFG1_SWI_REC_DLY_PRG (BIT(7) | BIT(6)) diff --git a/drivers/media/platform/qcom/camss/camss-csiphy.c b/drivers/media/platform/qcom/camss/camss-csiphy.c index 4559f3b1b38c..008afb85023b 100644 --- a/drivers/media/platform/qcom/camss/camss-csiphy.c +++ b/drivers/media/platform/qcom/camss/camss-csiphy.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/media/platform/qcom/camss/camss-ispif.c b/drivers/media/platform/qcom/camss/camss-ispif.c index ca7b0917500d..1f33b4eb198c 100644 --- a/drivers/media/platform/qcom/camss/camss-ispif.c +++ b/drivers/media/platform/qcom/camss/camss-ispif.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-1.c b/drivers/media/platform/qcom/camss/camss-vfe-4-1.c index da3a9fed9f2d..174a36be6f5d 100644 --- a/drivers/media/platform/qcom/camss/camss-vfe-4-1.c +++ b/drivers/media/platform/qcom/camss/camss-vfe-4-1.c @@ -9,6 +9,7 @@ */ #include +#include #include #include "camss-vfe.h" diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-7.c b/drivers/media/platform/qcom/camss/camss-vfe-4-7.c index 4c584bffd179..0dca8bf9281e 100644 --- a/drivers/media/platform/qcom/camss/camss-vfe-4-7.c +++ b/drivers/media/platform/qcom/camss/camss-vfe-4-7.c @@ -9,6 +9,7 @@ */ #include +#include #include #include "camss-vfe.h" From 74081c9f16a213f8f2681c175dc6ad7d17ad16ba Mon Sep 17 00:00:00 2001 From: Fabrizio Castro Date: Tue, 14 Aug 2018 13:33:48 +0100 Subject: [PATCH 0323/1762] dt-bindings: watchdog: renesas-wdt: Document r8a774a1 support RZ/G2M (R8A774A1) watchdog implementation is compatible with R-Car Gen3, therefore add relevant documentation. Signed-off-by: Fabrizio Castro Reviewed-by: Biju Das Reviewed-by: Rob Herring Reviewed-by: Simon Horman Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- Documentation/devicetree/bindings/watchdog/renesas-wdt.txt | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt index 5d47a262474c..9407212a85a8 100644 --- a/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt @@ -7,6 +7,7 @@ Required properties: Examples with soctypes are: - "renesas,r8a7743-wdt" (RZ/G1M) - "renesas,r8a7745-wdt" (RZ/G1E) + - "renesas,r8a774a1-wdt" (RZ/G2M) - "renesas,r8a7790-wdt" (R-Car H2) - "renesas,r8a7791-wdt" (R-Car M2-W) - "renesas,r8a7792-wdt" (R-Car V2H) @@ -21,8 +22,8 @@ Required properties: - "renesas,r7s72100-wdt" (RZ/A1) The generic compatible string must be: - "renesas,rza-wdt" for RZ/A - - "renesas,rcar-gen2-wdt" for R-Car Gen2 and RZ/G - - "renesas,rcar-gen3-wdt" for R-Car Gen3 + - "renesas,rcar-gen2-wdt" for R-Car Gen2 and RZ/G1 + - "renesas,rcar-gen3-wdt" for R-Car Gen3 and RZ/G2 - reg : Should contain WDT registers location and length - clocks : the clock feeding the watchdog timer. From 1dbd150d04f11a6e8d03c80132167e8d3391f8ce Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 27 Aug 2018 15:27:08 +0200 Subject: [PATCH 0324/1762] ARM: defconfig: Update the ARM Versatile defconfig This updates the ARM Versatile defconfig to the latest Kconfig structural changes and adds the DUMB VGA bridge driver so that VGA works out of the box, e.g. with QEMU. Signed-off-by: Linus Walleij Signed-off-by: Olof Johansson --- arch/arm/configs/versatile_defconfig | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/arch/arm/configs/versatile_defconfig b/arch/arm/configs/versatile_defconfig index df68dc4056e5..5282324c7cef 100644 --- a/arch/arm/configs/versatile_defconfig +++ b/arch/arm/configs/versatile_defconfig @@ -5,19 +5,19 @@ CONFIG_HIGH_RES_TIMERS=y CONFIG_LOG_BUF_SHIFT=14 CONFIG_BLK_DEV_INITRD=y CONFIG_SLAB=y -CONFIG_MODULES=y -CONFIG_MODULE_UNLOAD=y -CONFIG_PARTITION_ADVANCED=y # CONFIG_ARCH_MULTI_V7 is not set CONFIG_ARCH_VERSATILE=y CONFIG_AEABI=y CONFIG_OABI_COMPAT=y -CONFIG_CMA=y CONFIG_ZBOOT_ROM_TEXT=0x0 CONFIG_ZBOOT_ROM_BSS=0x0 CONFIG_CMDLINE="root=1f03 mem=32M" CONFIG_FPE_NWFPE=y CONFIG_VFP=y +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_CMA=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y @@ -59,6 +59,7 @@ CONFIG_GPIO_PL061=y CONFIG_DRM=y CONFIG_DRM_PANEL_ARM_VERSATILE=y CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_DUMB_VGA_DAC=y CONFIG_DRM_PL111=y CONFIG_FB_MODE_HELPERS=y CONFIG_BACKLIGHT_LCD_SUPPORT=y @@ -89,9 +90,10 @@ CONFIG_NFSD=y CONFIG_NFSD_V3=y CONFIG_NLS_CODEPAGE_850=m CONFIG_NLS_ISO8859_1=m +CONFIG_FONTS=y +CONFIG_FONT_ACORN_8x8=y +CONFIG_DEBUG_FS=y CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_KERNEL=y CONFIG_DEBUG_USER=y CONFIG_DEBUG_LL=y -CONFIG_FONTS=y -CONFIG_FONT_ACORN_8x8=y From 67e6ddb5be440a92b82e87ca0ab8f973ae31b12c Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Mon, 27 Aug 2018 19:46:50 -0500 Subject: [PATCH 0325/1762] arm64: defconfig: Enable TI's AM6 SoC platform Enable K3 SoC platform for TI's AM6 SoC. Signed-off-by: Nishanth Menon Acked-by: Tony Lindgren Signed-off-by: Olof Johansson --- arch/arm64/configs/defconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index f67e8d5e93ad..db8d364f8476 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -38,6 +38,7 @@ CONFIG_ARCH_BCM_IPROC=y CONFIG_ARCH_BERLIN=y CONFIG_ARCH_BRCMSTB=y CONFIG_ARCH_EXYNOS=y +CONFIG_ARCH_K3=y CONFIG_ARCH_LAYERSCAPE=y CONFIG_ARCH_LG1K=y CONFIG_ARCH_HISI=y @@ -605,6 +606,8 @@ CONFIG_ARCH_TEGRA_132_SOC=y CONFIG_ARCH_TEGRA_210_SOC=y CONFIG_ARCH_TEGRA_186_SOC=y CONFIG_ARCH_TEGRA_194_SOC=y +CONFIG_ARCH_K3_AM6_SOC=y +CONFIG_SOC_TI=y CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y CONFIG_EXTCON_USB_GPIO=y CONFIG_EXTCON_USBC_CROS_EC=y From f013027e266553effa3e9d9d62236ae5ee3b25e7 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 16 Aug 2018 08:34:46 +0100 Subject: [PATCH 0326/1762] drm/i915: Stop holding a ref to the ppgtt from each vma The context owns both the ppgtt and the vma within it, and our activity tracking on the context ensures that we do not release active ppgtt. As the context fulfils our obligations for active memory tracking, we can relinquish the reference from the vma. This fixes a silly transient refleak from closed vma being kept alive until the entire system was idle, keeping all vm alive as well. Reported-by: Paulo Zanoni Testcase: igt/gem_ctx_create/files Fixes: 3365e2268b6b ("drm/i915: Lazily unbind vma on close") Signed-off-by: Chris Wilson Cc: Tvrtko Ursulin Cc: Paulo Zanoni Reviewed-by: Mika Kuoppala Tested-by: Mika Kuoppala Link: https://patchwork.freedesktop.org/patch/msgid/20180816073448.19396-1-chris@chris-wilson.co.uk (cherry picked from commit a4417b7b419a68540ad7945ac4efbb39d19afa63) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/i915_vma.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c index 11d834f94220..98358b4b36de 100644 --- a/drivers/gpu/drm/i915/i915_vma.c +++ b/drivers/gpu/drm/i915/i915_vma.c @@ -199,7 +199,6 @@ vma_create(struct drm_i915_gem_object *obj, vma->flags |= I915_VMA_GGTT; list_add(&vma->obj_link, &obj->vma_list); } else { - i915_ppgtt_get(i915_vm_to_ppgtt(vm)); list_add_tail(&vma->obj_link, &obj->vma_list); } @@ -807,9 +806,6 @@ static void __i915_vma_destroy(struct i915_vma *vma) if (vma->obj) rb_erase(&vma->obj_node, &vma->obj->vma_tree); - if (!i915_vma_is_ggtt(vma)) - i915_ppgtt_put(i915_vm_to_ppgtt(vma->vm)); - rbtree_postorder_for_each_entry_safe(iter, n, &vma->active, node) { GEM_BUG_ON(i915_gem_active_isset(&iter->base)); kfree(iter); From 299c2a904b1e8d5096d4813df6371357d97a6cd1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Fredrik=20Sch=C3=B6n?= Date: Fri, 17 Aug 2018 22:07:28 +0200 Subject: [PATCH 0327/1762] drm/i915: Increase LSPCON timeout MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 100 ms is not enough time for the LSPCON adapter on Intel NUC devices to settle. This causes dropped display modes at boot or screen reconfiguration. Empirical testing can reproduce the error up to a timeout of 190 ms. Basic boot and stress testing at 200 ms has not (yet) failed. Increase timeout to 400 ms to get some margin of error. Changes from v1: The initial suggestion of 1000 ms was lowered due to concerns about delaying valid timeout cases. Update patch metadata. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107503 Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1570392 Fixes: 357c0ae9198a ("drm/i915/lspcon: Wait for expected LSPCON mode to settle") Cc: Shashank Sharma Cc: Imre Deak Cc: Jani Nikula Cc: # v4.11+ Reviewed-by: Rodrigo Vivi Reviewed-by: Shashank Sharma Signed-off-by: Fredrik Schön Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20180817200728.8154-1-fredrik.schon@gmail.com (cherry picked from commit 59f1c8ab30d6f9042562949f42cbd3f3cf69de94) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/intel_lspcon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_lspcon.c b/drivers/gpu/drm/i915/intel_lspcon.c index 5dae16ccd9f1..3e085c5f2b81 100644 --- a/drivers/gpu/drm/i915/intel_lspcon.c +++ b/drivers/gpu/drm/i915/intel_lspcon.c @@ -74,7 +74,7 @@ static enum drm_lspcon_mode lspcon_wait_mode(struct intel_lspcon *lspcon, DRM_DEBUG_KMS("Waiting for LSPCON mode %s to settle\n", lspcon_mode_name(mode)); - wait_for((current_mode = lspcon_get_current_mode(lspcon)) == mode, 100); + wait_for((current_mode = lspcon_get_current_mode(lspcon)) == mode, 400); if (current_mode != mode) DRM_ERROR("LSPCON mode hasn't settled\n"); From 80ab316901bc4ae6dd0b5903dbe22766307eac9b Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 17 Aug 2018 11:02:41 +0100 Subject: [PATCH 0328/1762] drm/i915/audio: Hook up component bindings even if displays are disabled If the display has been disabled by modparam, we still want to connect together the HW bits and bobs with the associated drivers so that we can continue to manage their runtime power gating. Fixes: 108109444ff6 ("drm/i915: Check num_pipes before initializing audio component") Signed-off-by: Chris Wilson Cc: Imre Deak Cc: Takashi Iwai Cc: Jani Nikula Cc: Elaine Wang Reviewed-by: Imre Deak Link: https://patchwork.freedesktop.org/patch/msgid/20180817100241.4628-1-chris@chris-wilson.co.uk (cherry picked from commit 35a5fd9ebfa93758ca579e30f337b6c9126d995b) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/intel_audio.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c index b725835b47ef..769f3f586661 100644 --- a/drivers/gpu/drm/i915/intel_audio.c +++ b/drivers/gpu/drm/i915/intel_audio.c @@ -962,9 +962,6 @@ void i915_audio_component_init(struct drm_i915_private *dev_priv) { int ret; - if (INTEL_INFO(dev_priv)->num_pipes == 0) - return; - ret = component_add(dev_priv->drm.dev, &i915_audio_component_bind_ops); if (ret < 0) { DRM_ERROR("failed to add audio component (%d)\n", ret); From ff69279a44e9ba876466b7d3ab84d6dbd31cac92 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Wed, 29 Aug 2018 08:47:53 +0200 Subject: [PATCH 0329/1762] powerpc: disable support for relative ksymtab references The newly added code that emits ksymtab entries as pairs of 32-bit relative references interacts poorly with the way powerpc lays out its address space: when a module exports a per-CPU variable, the primary module region covering the ksymtab entry -and thus the 32-bit relative reference- is too far away from the actual per-CPU variable's base address (to which the per-CPU offsets are applied to obtain the respective address of each CPU's copy), resulting in corruption when the module loader attempts to resolve symbol references of modules that are loaded on top and link to the exported per-CPU symbol. So let's disable this feature on powerpc. Even though it implements CONFIG_RELOCATABLE, it does not implement CONFIG_RANDOMIZE_BASE and so KASLR kernels (which are the main target of the feature) do not exist on powerpc anyway. Reported-by: Andreas Schwab Suggested-by: Nicholas Piggin Signed-off-by: Ard Biesheuvel Signed-off-by: Linus Torvalds --- arch/powerpc/Kconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index db0b6eebbfa5..a80669209155 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -177,7 +177,6 @@ config PPC select HAVE_ARCH_KGDB select HAVE_ARCH_MMAP_RND_BITS select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT - select HAVE_ARCH_PREL32_RELOCATIONS select HAVE_ARCH_SECCOMP_FILTER select HAVE_ARCH_TRACEHOOK select HAVE_CBPF_JIT if !PPC64 From 9f2895461439fda2801a7906fb4c5fb3dbb37a0a Mon Sep 17 00:00:00 2001 From: Alexey Kodanev Date: Thu, 23 Aug 2018 19:49:54 +0300 Subject: [PATCH 0330/1762] vti6: remove !skb->ignore_df check from vti6_xmit() Before the commit d6990976af7c ("vti6: fix PMTU caching and reporting on xmit") '!skb->ignore_df' check was always true because the function skb_scrub_packet() was called before it, resetting ignore_df to zero. In the commit, skb_scrub_packet() was moved below, and now this check can be false for the packet, e.g. when sending it in the two fragments, this prevents successful PMTU updates in such case. The next attempts to send the packet lead to the same tx error. Moreover, vti6 initial MTU value relies on PMTU adjustments. This issue can be reproduced with the following LTP test script: udp_ipsec_vti.sh -6 -p ah -m tunnel -s 2000 Fixes: ccd740cbc6e0 ("vti6: Add pmtu handling to vti6_xmit.") Signed-off-by: Alexey Kodanev Acked-by: Steffen Klassert Signed-off-by: David S. Miller --- net/ipv6/ip6_vti.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c index 5095367c7204..eeaf7455d51e 100644 --- a/net/ipv6/ip6_vti.c +++ b/net/ipv6/ip6_vti.c @@ -481,7 +481,7 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl) } mtu = dst_mtu(dst); - if (!skb->ignore_df && skb->len > mtu) { + if (skb->len > mtu) { skb_dst_update_pmtu(skb, mtu); if (skb->protocol == htons(ETH_P_IPV6)) { From bd583fe30427500a2d0abe25724025b1cb5e2636 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Thu, 23 Aug 2018 16:19:44 -0700 Subject: [PATCH 0331/1762] tipc: fix a missing rhashtable_walk_exit() rhashtable_walk_exit() must be paired with rhashtable_walk_enter(). Fixes: 40f9f4397060 ("tipc: Fix tipc_sk_reinit race conditions") Cc: Herbert Xu Cc: Ying Xue Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- net/tipc/socket.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index c1e93c9515bc..c9a50b62c738 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -2672,6 +2672,8 @@ void tipc_sk_reinit(struct net *net) rhashtable_walk_stop(&iter); } while (tsk == ERR_PTR(-EAGAIN)); + + rhashtable_walk_exit(&iter); } static struct tipc_sock *tipc_sk_lookup(struct net *net, u32 portid) From e5133f2f1261f8ab412e7fc5e3694c9f84328f89 Mon Sep 17 00:00:00 2001 From: Jerome Brunet Date: Fri, 24 Aug 2018 11:04:40 +0200 Subject: [PATCH 0332/1762] Revert "net: stmmac: Do not keep rearming the coalesce timer in stmmac_xmit" This reverts commit 4ae0169fd1b3c792b66be58995b7e6b629919ecf. This change in the handling of the coalesce timer is causing regression on (at least) amlogic platforms. Network will break down very quickly (a few seconds) after starting a download. This can easily be reproduced using iperf3 for example. The problem has been reported on the S805, S905, S912 and A113 SoCs (Realtek and Micrel PHYs) and it is likely impacting all Amlogics platforms using Gbit ethernet No problem was seen with the platform using 10/100 only PHYs (GXL internal) Reverting change brings things back to normal and allows to use network again until we better understand the problem with the coalesce timer. Cc: Jose Abreu Cc: Joao Pinto Cc: Vitor Soares Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Cc: Corentin Labbe Signed-off-by: Jerome Brunet Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/stmmac.h | 1 - drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 5 +---- 2 files changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index 76649adf8fb0..c0a855b7ab3b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -112,7 +112,6 @@ struct stmmac_priv { u32 tx_count_frames; u32 tx_coal_frames; u32 tx_coal_timer; - bool tx_timer_armed; int tx_coalesce; int hwts_tx_en; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index ff1ffb46198a..9f458bb16f2a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -3147,16 +3147,13 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) * element in case of no SG. */ priv->tx_count_frames += nfrags + 1; - if (likely(priv->tx_coal_frames > priv->tx_count_frames) && - !priv->tx_timer_armed) { + if (likely(priv->tx_coal_frames > priv->tx_count_frames)) { mod_timer(&priv->txtimer, STMMAC_COAL_TIMER(priv->tx_coal_timer)); - priv->tx_timer_armed = true; } else { priv->tx_count_frames = 0; stmmac_set_tx_ic(priv, desc); priv->xstats.tx_set_ic_bit++; - priv->tx_timer_armed = false; } skb_tx_timestamp(skb); From 9a07efa9aea2f4a59f35da0785a4e6a6b5a96192 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Fri, 24 Aug 2018 12:28:06 -0700 Subject: [PATCH 0333/1762] tipc: switch to rhashtable iterator syzbot reported a use-after-free in tipc_group_fill_sock_diag(), where tipc_group_fill_sock_diag() still reads tsk->group meanwhile tipc_group_delete() just deletes it in tipc_release(). tipc_nl_sk_walk() aims to lock this sock when walking each sock in the hash table to close race conditions with sock changes like this one, by acquiring tsk->sk.sk_lock.slock spinlock, unfortunately this doesn't work at all. All non-BH call path should take lock_sock() instead to make it work. tipc_nl_sk_walk() brutally iterates with raw rht_for_each_entry_rcu() where RCU read lock is required, this is the reason why lock_sock() can't be taken on this path. This could be resolved by switching to rhashtable iterator API's, where taking a sleepable lock is possible. Also, the iterator API's are friendly for restartable calls like diag dump, the last position is remembered behind the scence, all we need to do here is saving the iterator into cb->args[]. I tested this with parallel tipc diag dump and thousands of tipc socket creation and release, no crash or memory leak. Reported-by: syzbot+b9c8f3ab2994b7cd1625@syzkaller.appspotmail.com Cc: Jon Maloy Cc: Ying Xue Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- net/tipc/diag.c | 2 ++ net/tipc/netlink.c | 2 ++ net/tipc/socket.c | 80 ++++++++++++++++++++++++++++++---------------- net/tipc/socket.h | 2 ++ 4 files changed, 58 insertions(+), 28 deletions(-) diff --git a/net/tipc/diag.c b/net/tipc/diag.c index aaabb0b776dd..73137f4aeb68 100644 --- a/net/tipc/diag.c +++ b/net/tipc/diag.c @@ -84,7 +84,9 @@ static int tipc_sock_diag_handler_dump(struct sk_buff *skb, if (h->nlmsg_flags & NLM_F_DUMP) { struct netlink_dump_control c = { + .start = tipc_dump_start, .dump = tipc_diag_dump, + .done = tipc_dump_done, }; netlink_dump_start(net->diag_nlsk, skb, h, &c); return 0; diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c index 6ff2254088f6..99ee419210ba 100644 --- a/net/tipc/netlink.c +++ b/net/tipc/netlink.c @@ -167,7 +167,9 @@ static const struct genl_ops tipc_genl_v2_ops[] = { }, { .cmd = TIPC_NL_SOCK_GET, + .start = tipc_dump_start, .dumpit = tipc_nl_sk_dump, + .done = tipc_dump_done, .policy = tipc_nl_policy, }, { diff --git a/net/tipc/socket.c b/net/tipc/socket.c index c9a50b62c738..ab7a2a7178f7 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -3229,45 +3229,69 @@ int tipc_nl_sk_walk(struct sk_buff *skb, struct netlink_callback *cb, struct netlink_callback *cb, struct tipc_sock *tsk)) { - struct net *net = sock_net(skb->sk); - struct tipc_net *tn = tipc_net(net); - const struct bucket_table *tbl; - u32 prev_portid = cb->args[1]; - u32 tbl_id = cb->args[0]; - struct rhash_head *pos; + struct rhashtable_iter *iter = (void *)cb->args[0]; struct tipc_sock *tsk; int err; - rcu_read_lock(); - tbl = rht_dereference_rcu((&tn->sk_rht)->tbl, &tn->sk_rht); - for (; tbl_id < tbl->size; tbl_id++) { - rht_for_each_entry_rcu(tsk, pos, tbl, tbl_id, node) { - spin_lock_bh(&tsk->sk.sk_lock.slock); - if (prev_portid && prev_portid != tsk->portid) { - spin_unlock_bh(&tsk->sk.sk_lock.slock); + rhashtable_walk_start(iter); + while ((tsk = rhashtable_walk_next(iter)) != NULL) { + if (IS_ERR(tsk)) { + err = PTR_ERR(tsk); + if (err == -EAGAIN) { + err = 0; continue; } - - err = skb_handler(skb, cb, tsk); - if (err) { - prev_portid = tsk->portid; - spin_unlock_bh(&tsk->sk.sk_lock.slock); - goto out; - } - - prev_portid = 0; - spin_unlock_bh(&tsk->sk.sk_lock.slock); + break; } - } -out: - rcu_read_unlock(); - cb->args[0] = tbl_id; - cb->args[1] = prev_portid; + sock_hold(&tsk->sk); + rhashtable_walk_stop(iter); + lock_sock(&tsk->sk); + err = skb_handler(skb, cb, tsk); + if (err) { + release_sock(&tsk->sk); + sock_put(&tsk->sk); + goto out; + } + release_sock(&tsk->sk); + rhashtable_walk_start(iter); + sock_put(&tsk->sk); + } + rhashtable_walk_stop(iter); +out: return skb->len; } EXPORT_SYMBOL(tipc_nl_sk_walk); +int tipc_dump_start(struct netlink_callback *cb) +{ + struct rhashtable_iter *iter = (void *)cb->args[0]; + struct net *net = sock_net(cb->skb->sk); + struct tipc_net *tn = tipc_net(net); + + if (!iter) { + iter = kmalloc(sizeof(*iter), GFP_KERNEL); + if (!iter) + return -ENOMEM; + + cb->args[0] = (long)iter; + } + + rhashtable_walk_enter(&tn->sk_rht, iter); + return 0; +} +EXPORT_SYMBOL(tipc_dump_start); + +int tipc_dump_done(struct netlink_callback *cb) +{ + struct rhashtable_iter *hti = (void *)cb->args[0]; + + rhashtable_walk_exit(hti); + kfree(hti); + return 0; +} +EXPORT_SYMBOL(tipc_dump_done); + int tipc_sk_fill_sock_diag(struct sk_buff *skb, struct netlink_callback *cb, struct tipc_sock *tsk, u32 sk_filter_state, u64 (*tipc_diag_gen_cookie)(struct sock *sk)) diff --git a/net/tipc/socket.h b/net/tipc/socket.h index aff9b2ae5a1f..d43032e26532 100644 --- a/net/tipc/socket.h +++ b/net/tipc/socket.h @@ -68,4 +68,6 @@ int tipc_nl_sk_walk(struct sk_buff *skb, struct netlink_callback *cb, int (*skb_handler)(struct sk_buff *skb, struct netlink_callback *cb, struct tipc_sock *tsk)); +int tipc_dump_start(struct netlink_callback *cb); +int tipc_dump_done(struct netlink_callback *cb); #endif From 05212ba8132b42047ab5d63d759c6f9c28e7eab5 Mon Sep 17 00:00:00 2001 From: Azat Khuzhin Date: Sun, 26 Aug 2018 17:03:09 +0300 Subject: [PATCH 0334/1762] r8169: set RxConfig after tx/rx is enabled for RTL8169sb/8110sb devices I have two Ethernet adapters: r8169 0000:03:01.0 eth0: RTL8169sb/8110sb, 00:14:d1:14:2d:49, XID 10000000, IRQ 18 r8169 0000:01:00.0 eth0: RTL8168e/8111e, 64:66:b3:11:14:5d, XID 2c200000, IRQ 30 And after upgrading from linux 4.15 [1] to linux 4.18+ [2] RTL8169sb failed to receive any packets. tcpdump shows a lot of checksum mismatch. [1]: a0f79386a4968b4925da6db2d1daffd0605a4402 [2]: 0519359784328bfa92bf0931bf0cff3b58c16932 (4.19 merge window opened) I started bisecting and the found that [3] breaks it. According to [4]: "For 8110S, 8110SB, and 8110SC series, the initial value of RxConfig needs to be set after the tx/rx is enabled." So I moved rtl_init_rxcfg() after enabling tx/rs and now my adapter works (RTL8168e works too). [3]: 3559d81e76bfe3803e89f2e04cf6ef7ab4f3aace [4]: e542a2269f232d61270ceddd42b73a4348dee2bb ("r8169: adjust the RxConfig settings.") Also drop "rx" from rtl_set_rx_tx_config_registers(), since it does nothing with it already. Fixes: 3559d81e76bfe3803e89f2e04cf6ef7ab4f3aace ("r8169: simplify rtl_hw_start_8169") Cc: Heiner Kallweit Cc: David S. Miller Cc: netdev@vger.kernel.org Cc: Realtek linux nic maintainers Signed-off-by: Azat Khuzhin Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 0efa977c422d..ac306797590e 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -4522,7 +4522,7 @@ static void rtl8169_hw_reset(struct rtl8169_private *tp) rtl_hw_reset(tp); } -static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp) +static void rtl_set_tx_config_registers(struct rtl8169_private *tp) { /* Set DMA burst size and Interframe Gap Time */ RTL_W32(tp, TxConfig, (TX_DMA_BURST << TxDMAShift) | @@ -4633,12 +4633,14 @@ static void rtl_hw_start(struct rtl8169_private *tp) rtl_set_rx_max_size(tp); rtl_set_rx_tx_desc_registers(tp); - rtl_set_rx_tx_config_registers(tp); + rtl_set_tx_config_registers(tp); RTL_W8(tp, Cfg9346, Cfg9346_Lock); /* Initially a 10 us delay. Turned it into a PCI commit. - FR */ RTL_R8(tp, IntrMask); RTL_W8(tp, ChipCmd, CmdTxEnb | CmdRxEnb); + rtl_init_rxcfg(tp); + rtl_set_rx_mode(tp->dev); /* no early-rx interrupts */ RTL_W16(tp, MultiIntr, RTL_R16(tp, MultiIntr) & 0xf000); From 31fabbee8f5c658c3fa1603c66e9e4f51ea8c2c6 Mon Sep 17 00:00:00 2001 From: Peng Li Date: Mon, 27 Aug 2018 09:59:29 +0800 Subject: [PATCH 0335/1762] net: hns: add the code for cleaning pkt in chip If there are packets in hardware when changing the speed or duplex, it may cause hardware hang up. This patch adds the code for waiting chip to clean the all pkts(TX & RX) in chip when the driver uses the function named "adjust link". This patch cleans the pkts as follows: 1) close rx of chip, close tx of protocol stack. 2) wait rcb, ppe, mac to clean. 3) adjust link 4) open rx of chip, open tx of protocol stack. Signed-off-by: Peng Li Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns/hnae.h | 2 + .../net/ethernet/hisilicon/hns/hns_ae_adapt.c | 67 ++++++++++++++++++- .../ethernet/hisilicon/hns/hns_dsaf_gmac.c | 36 ++++++++++ .../net/ethernet/hisilicon/hns/hns_dsaf_mac.c | 44 ++++++++++++ .../net/ethernet/hisilicon/hns/hns_dsaf_mac.h | 8 +++ .../ethernet/hisilicon/hns/hns_dsaf_main.c | 29 ++++++++ .../ethernet/hisilicon/hns/hns_dsaf_main.h | 3 + .../net/ethernet/hisilicon/hns/hns_dsaf_ppe.c | 23 +++++++ .../net/ethernet/hisilicon/hns/hns_dsaf_ppe.h | 1 + .../net/ethernet/hisilicon/hns/hns_dsaf_rcb.c | 23 +++++++ .../net/ethernet/hisilicon/hns/hns_dsaf_rcb.h | 1 + .../net/ethernet/hisilicon/hns/hns_dsaf_reg.h | 1 + drivers/net/ethernet/hisilicon/hns/hns_enet.c | 21 +++++- 13 files changed, 255 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns/hnae.h b/drivers/net/ethernet/hisilicon/hns/hnae.h index cad52bd331f7..08a750fb60c4 100644 --- a/drivers/net/ethernet/hisilicon/hns/hnae.h +++ b/drivers/net/ethernet/hisilicon/hns/hnae.h @@ -486,6 +486,8 @@ struct hnae_ae_ops { u8 *auto_neg, u16 *speed, u8 *duplex); void (*toggle_ring_irq)(struct hnae_ring *ring, u32 val); void (*adjust_link)(struct hnae_handle *handle, int speed, int duplex); + bool (*need_adjust_link)(struct hnae_handle *handle, + int speed, int duplex); int (*set_loopback)(struct hnae_handle *handle, enum hnae_loop loop_mode, int en); void (*get_ring_bdnum_limit)(struct hnae_queue *queue, diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c index e6aad30e7e69..b52029e26d15 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c @@ -155,6 +155,41 @@ static void hns_ae_put_handle(struct hnae_handle *handle) hns_ae_get_ring_pair(handle->qs[i])->used_by_vf = 0; } +static int hns_ae_wait_flow_down(struct hnae_handle *handle) +{ + struct dsaf_device *dsaf_dev; + struct hns_ppe_cb *ppe_cb; + struct hnae_vf_cb *vf_cb; + int ret; + int i; + + for (i = 0; i < handle->q_num; i++) { + ret = hns_rcb_wait_tx_ring_clean(handle->qs[i]); + if (ret) + return ret; + } + + ppe_cb = hns_get_ppe_cb(handle); + ret = hns_ppe_wait_tx_fifo_clean(ppe_cb); + if (ret) + return ret; + + dsaf_dev = hns_ae_get_dsaf_dev(handle->dev); + if (!dsaf_dev) + return -EINVAL; + ret = hns_dsaf_wait_pkt_clean(dsaf_dev, handle->dport_id); + if (ret) + return ret; + + vf_cb = hns_ae_get_vf_cb(handle); + ret = hns_mac_wait_fifo_clean(vf_cb->mac_cb); + if (ret) + return ret; + + mdelay(10); + return 0; +} + static void hns_ae_ring_enable_all(struct hnae_handle *handle, int val) { int q_num = handle->q_num; @@ -399,12 +434,41 @@ static int hns_ae_get_mac_info(struct hnae_handle *handle, return hns_mac_get_port_info(mac_cb, auto_neg, speed, duplex); } +static bool hns_ae_need_adjust_link(struct hnae_handle *handle, int speed, + int duplex) +{ + struct hns_mac_cb *mac_cb = hns_get_mac_cb(handle); + + return hns_mac_need_adjust_link(mac_cb, speed, duplex); +} + static void hns_ae_adjust_link(struct hnae_handle *handle, int speed, int duplex) { struct hns_mac_cb *mac_cb = hns_get_mac_cb(handle); - hns_mac_adjust_link(mac_cb, speed, duplex); + switch (mac_cb->dsaf_dev->dsaf_ver) { + case AE_VERSION_1: + hns_mac_adjust_link(mac_cb, speed, duplex); + break; + + case AE_VERSION_2: + /* chip need to clear all pkt inside */ + hns_mac_disable(mac_cb, MAC_COMM_MODE_RX); + if (hns_ae_wait_flow_down(handle)) { + hns_mac_enable(mac_cb, MAC_COMM_MODE_RX); + break; + } + + hns_mac_adjust_link(mac_cb, speed, duplex); + hns_mac_enable(mac_cb, MAC_COMM_MODE_RX); + break; + + default: + break; + } + + return; } static void hns_ae_get_ring_bdnum_limit(struct hnae_queue *queue, @@ -902,6 +966,7 @@ static struct hnae_ae_ops hns_dsaf_ops = { .get_status = hns_ae_get_link_status, .get_info = hns_ae_get_mac_info, .adjust_link = hns_ae_adjust_link, + .need_adjust_link = hns_ae_need_adjust_link, .set_loopback = hns_ae_config_loopback, .get_ring_bdnum_limit = hns_ae_get_ring_bdnum_limit, .get_pauseparam = hns_ae_get_pauseparam, diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c index 5488c6e89f21..09e4061d1fa6 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c @@ -257,6 +257,16 @@ static void hns_gmac_get_pausefrm_cfg(void *mac_drv, u32 *rx_pause_en, *tx_pause_en = dsaf_get_bit(pause_en, GMAC_PAUSE_EN_TX_FDFC_B); } +static bool hns_gmac_need_adjust_link(void *mac_drv, enum mac_speed speed, + int duplex) +{ + struct mac_driver *drv = (struct mac_driver *)mac_drv; + struct hns_mac_cb *mac_cb = drv->mac_cb; + + return (mac_cb->speed != speed) || + (mac_cb->half_duplex == duplex); +} + static int hns_gmac_adjust_link(void *mac_drv, enum mac_speed speed, u32 full_duplex) { @@ -309,6 +319,30 @@ static void hns_gmac_set_promisc(void *mac_drv, u8 en) hns_gmac_set_uc_match(mac_drv, en); } +int hns_gmac_wait_fifo_clean(void *mac_drv) +{ + struct mac_driver *drv = (struct mac_driver *)mac_drv; + int wait_cnt; + u32 val; + + wait_cnt = 0; + while (wait_cnt++ < HNS_MAX_WAIT_CNT) { + val = dsaf_read_dev(drv, GMAC_FIFO_STATE_REG); + /* bit5~bit0 is not send complete pkts */ + if ((val & 0x3f) == 0) + break; + usleep_range(100, 200); + } + + if (wait_cnt >= HNS_MAX_WAIT_CNT) { + dev_err(drv->dev, + "hns ge %d fifo was not idle.\n", drv->mac_id); + return -EBUSY; + } + + return 0; +} + static void hns_gmac_init(void *mac_drv) { u32 port; @@ -690,6 +724,7 @@ void *hns_gmac_config(struct hns_mac_cb *mac_cb, struct mac_params *mac_param) mac_drv->mac_disable = hns_gmac_disable; mac_drv->mac_free = hns_gmac_free; mac_drv->adjust_link = hns_gmac_adjust_link; + mac_drv->need_adjust_link = hns_gmac_need_adjust_link; mac_drv->set_tx_auto_pause_frames = hns_gmac_set_tx_auto_pause_frames; mac_drv->config_max_frame_length = hns_gmac_config_max_frame_length; mac_drv->mac_pausefrm_cfg = hns_gmac_pause_frm_cfg; @@ -717,6 +752,7 @@ void *hns_gmac_config(struct hns_mac_cb *mac_cb, struct mac_params *mac_param) mac_drv->get_strings = hns_gmac_get_strings; mac_drv->update_stats = hns_gmac_update_stats; mac_drv->set_promiscuous = hns_gmac_set_promisc; + mac_drv->wait_fifo_clean = hns_gmac_wait_fifo_clean; return (void *)mac_drv; } diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c index 1c2326bd76e2..6ed6f142427e 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c @@ -114,6 +114,26 @@ int hns_mac_get_port_info(struct hns_mac_cb *mac_cb, return 0; } +/** + *hns_mac_is_adjust_link - check is need change mac speed and duplex register + *@mac_cb: mac device + *@speed: phy device speed + *@duplex:phy device duplex + * + */ +bool hns_mac_need_adjust_link(struct hns_mac_cb *mac_cb, int speed, int duplex) +{ + struct mac_driver *mac_ctrl_drv; + + mac_ctrl_drv = (struct mac_driver *)(mac_cb->priv.mac); + + if (mac_ctrl_drv->need_adjust_link) + return mac_ctrl_drv->need_adjust_link(mac_ctrl_drv, + (enum mac_speed)speed, duplex); + else + return true; +} + void hns_mac_adjust_link(struct hns_mac_cb *mac_cb, int speed, int duplex) { int ret; @@ -430,6 +450,16 @@ int hns_mac_vm_config_bc_en(struct hns_mac_cb *mac_cb, u32 vmid, bool enable) return 0; } +int hns_mac_wait_fifo_clean(struct hns_mac_cb *mac_cb) +{ + struct mac_driver *drv = hns_mac_get_drv(mac_cb); + + if (drv->wait_fifo_clean) + return drv->wait_fifo_clean(drv); + + return 0; +} + void hns_mac_reset(struct hns_mac_cb *mac_cb) { struct mac_driver *drv = hns_mac_get_drv(mac_cb); @@ -998,6 +1028,20 @@ static int hns_mac_get_max_port_num(struct dsaf_device *dsaf_dev) return DSAF_MAX_PORT_NUM; } +void hns_mac_enable(struct hns_mac_cb *mac_cb, enum mac_commom_mode mode) +{ + struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb); + + mac_ctrl_drv->mac_enable(mac_cb->priv.mac, mode); +} + +void hns_mac_disable(struct hns_mac_cb *mac_cb, enum mac_commom_mode mode) +{ + struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb); + + mac_ctrl_drv->mac_disable(mac_cb->priv.mac, mode); +} + /** * hns_mac_init - init mac * @dsaf_dev: dsa fabric device struct pointer diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h index bbc0a98e7ca3..fbc75341bef7 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h @@ -356,6 +356,9 @@ struct mac_driver { /*adjust mac mode of port,include speed and duplex*/ int (*adjust_link)(void *mac_drv, enum mac_speed speed, u32 full_duplex); + /* need adjust link */ + bool (*need_adjust_link)(void *mac_drv, enum mac_speed speed, + int duplex); /* config autoegotaite mode of port*/ void (*set_an_mode)(void *mac_drv, u8 enable); /* config loopbank mode */ @@ -394,6 +397,7 @@ struct mac_driver { void (*get_info)(void *mac_drv, struct mac_info *mac_info); void (*update_stats)(void *mac_drv); + int (*wait_fifo_clean)(void *mac_drv); enum mac_mode mac_mode; u8 mac_id; @@ -427,6 +431,7 @@ void *hns_xgmac_config(struct hns_mac_cb *mac_cb, int hns_mac_init(struct dsaf_device *dsaf_dev); void mac_adjust_link(struct net_device *net_dev); +bool hns_mac_need_adjust_link(struct hns_mac_cb *mac_cb, int speed, int duplex); void hns_mac_get_link_status(struct hns_mac_cb *mac_cb, u32 *link_status); int hns_mac_change_vf_addr(struct hns_mac_cb *mac_cb, u32 vmid, char *addr); int hns_mac_set_multi(struct hns_mac_cb *mac_cb, @@ -463,5 +468,8 @@ int hns_mac_add_uc_addr(struct hns_mac_cb *mac_cb, u8 vf_id, int hns_mac_rm_uc_addr(struct hns_mac_cb *mac_cb, u8 vf_id, const unsigned char *addr); int hns_mac_clr_multicast(struct hns_mac_cb *mac_cb, int vfn); +void hns_mac_enable(struct hns_mac_cb *mac_cb, enum mac_commom_mode mode); +void hns_mac_disable(struct hns_mac_cb *mac_cb, enum mac_commom_mode mode); +int hns_mac_wait_fifo_clean(struct hns_mac_cb *mac_cb); #endif /* _HNS_DSAF_MAC_H */ diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c index ca50c2553a9c..e557a4ef5996 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c @@ -2727,6 +2727,35 @@ void hns_dsaf_set_promisc_tcam(struct dsaf_device *dsaf_dev, soft_mac_entry->index = enable ? entry_index : DSAF_INVALID_ENTRY_IDX; } +int hns_dsaf_wait_pkt_clean(struct dsaf_device *dsaf_dev, int port) +{ + u32 val, val_tmp; + int wait_cnt; + + if (port >= DSAF_SERVICE_NW_NUM) + return 0; + + wait_cnt = 0; + while (wait_cnt++ < HNS_MAX_WAIT_CNT) { + val = dsaf_read_dev(dsaf_dev, DSAF_VOQ_IN_PKT_NUM_0_REG + + (port + DSAF_XGE_NUM) * 0x40); + val_tmp = dsaf_read_dev(dsaf_dev, DSAF_VOQ_OUT_PKT_NUM_0_REG + + (port + DSAF_XGE_NUM) * 0x40); + if (val == val_tmp) + break; + + usleep_range(100, 200); + } + + if (wait_cnt >= HNS_MAX_WAIT_CNT) { + dev_err(dsaf_dev->dev, "hns dsaf clean wait timeout(%u - %u).\n", + val, val_tmp); + return -EBUSY; + } + + return 0; +} + /** * dsaf_probe - probo dsaf dev * @pdev: dasf platform device diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h index 4507e8222683..0e1cd99831a6 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h @@ -44,6 +44,8 @@ struct hns_mac_cb; #define DSAF_ROCE_CREDIT_CHN 8 #define DSAF_ROCE_CHAN_MODE 3 +#define HNS_MAX_WAIT_CNT 10000 + enum dsaf_roce_port_mode { DSAF_ROCE_6PORT_MODE, DSAF_ROCE_4PORT_MODE, @@ -463,5 +465,6 @@ int hns_dsaf_rm_mac_addr( int hns_dsaf_clr_mac_mc_port(struct dsaf_device *dsaf_dev, u8 mac_id, u8 port_num); +int hns_dsaf_wait_pkt_clean(struct dsaf_device *dsaf_dev, int port); #endif /* __HNS_DSAF_MAIN_H__ */ diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c index d160d8c9e45b..0942e4916d9d 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c @@ -275,6 +275,29 @@ static void hns_ppe_exc_irq_en(struct hns_ppe_cb *ppe_cb, int en) dsaf_write_dev(ppe_cb, PPE_INTEN_REG, msk_vlue & vld_msk); } +int hns_ppe_wait_tx_fifo_clean(struct hns_ppe_cb *ppe_cb) +{ + int wait_cnt; + u32 val; + + wait_cnt = 0; + while (wait_cnt++ < HNS_MAX_WAIT_CNT) { + val = dsaf_read_dev(ppe_cb, PPE_CURR_TX_FIFO0_REG) & 0x3ffU; + if (!val) + break; + + usleep_range(100, 200); + } + + if (wait_cnt >= HNS_MAX_WAIT_CNT) { + dev_err(ppe_cb->dev, "hns ppe tx fifo clean wait timeout, still has %u pkt.\n", + val); + return -EBUSY; + } + + return 0; +} + /** * ppe_init_hw - init ppe * @ppe_cb: ppe device diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h index 9d8e643e8aa6..f670e63a5a01 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h @@ -100,6 +100,7 @@ struct ppe_common_cb { }; +int hns_ppe_wait_tx_fifo_clean(struct hns_ppe_cb *ppe_cb); int hns_ppe_init(struct dsaf_device *dsaf_dev); void hns_ppe_uninit(struct dsaf_device *dsaf_dev); diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c index 9d76e2e54f9d..5d64519b9b1d 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c @@ -66,6 +66,29 @@ void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag) "queue(%d) wait fbd(%d) clean fail!!\n", i, fbd_num); } +int hns_rcb_wait_tx_ring_clean(struct hnae_queue *qs) +{ + u32 head, tail; + int wait_cnt; + + tail = dsaf_read_dev(&qs->tx_ring, RCB_REG_TAIL); + wait_cnt = 0; + while (wait_cnt++ < HNS_MAX_WAIT_CNT) { + head = dsaf_read_dev(&qs->tx_ring, RCB_REG_HEAD); + if (tail == head) + break; + + usleep_range(100, 200); + } + + if (wait_cnt >= HNS_MAX_WAIT_CNT) { + dev_err(qs->dev->dev, "rcb wait timeout, head not equal to tail.\n"); + return -EBUSY; + } + + return 0; +} + /** *hns_rcb_reset_ring_hw - ring reset *@q: ring struct pointer diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h index 602816498c8d..2319b772a271 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h @@ -136,6 +136,7 @@ void hns_rcbv2_int_clr_hw(struct hnae_queue *q, u32 flag); void hns_rcb_init_hw(struct ring_pair_cb *ring); void hns_rcb_reset_ring_hw(struct hnae_queue *q); void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag); +int hns_rcb_wait_tx_ring_clean(struct hnae_queue *qs); u32 hns_rcb_get_rx_coalesced_frames( struct rcb_common_cb *rcb_common, u32 port_idx); u32 hns_rcb_get_tx_coalesced_frames( diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h index 886cbbf25761..74d935d82cbc 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h @@ -464,6 +464,7 @@ #define RCB_RING_INTMSK_TX_OVERTIME_REG 0x000C4 #define RCB_RING_INTSTS_TX_OVERTIME_REG 0x000C8 +#define GMAC_FIFO_STATE_REG 0x0000UL #define GMAC_DUPLEX_TYPE_REG 0x0008UL #define GMAC_FD_FC_TYPE_REG 0x000CUL #define GMAC_TX_WATER_LINE_REG 0x0010UL diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index 02a0ba20fad5..f56855e63c96 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -1112,11 +1112,26 @@ static void hns_nic_adjust_link(struct net_device *ndev) struct hnae_handle *h = priv->ae_handle; int state = 1; + /* If there is no phy, do not need adjust link */ if (ndev->phydev) { - h->dev->ops->adjust_link(h, ndev->phydev->speed, - ndev->phydev->duplex); - state = ndev->phydev->link; + /* When phy link down, do nothing */ + if (ndev->phydev->link == 0) + return; + + if (h->dev->ops->need_adjust_link(h, ndev->phydev->speed, + ndev->phydev->duplex)) { + /* because Hi161X chip don't support to change gmac + * speed and duplex with traffic. Delay 200ms to + * make sure there is no more data in chip FIFO. + */ + netif_carrier_off(ndev); + msleep(200); + h->dev->ops->adjust_link(h, ndev->phydev->speed, + ndev->phydev->duplex); + netif_carrier_on(ndev); + } } + state = state && h->dev->ops->get_status(h); if (state != priv->link) { From 455c4401fe7a538facaffb35b906ce19f1ece474 Mon Sep 17 00:00:00 2001 From: Peng Li Date: Mon, 27 Aug 2018 09:59:30 +0800 Subject: [PATCH 0336/1762] net: hns: add netif_carrier_off before change speed and duplex If there are packets in hardware when changing the speed or duplex, it may cause hardware hang up. This patch adds netif_carrier_off before change speed and duplex in ethtool_ops.set_link_ksettings, and adds netif_carrier_on after complete the change. Signed-off-by: Peng Li Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns/hns_ethtool.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c index 08f3c4743f74..774beda040a1 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c @@ -243,7 +243,9 @@ static int hns_nic_set_link_ksettings(struct net_device *net_dev, } if (h->dev->ops->adjust_link) { + netif_carrier_off(net_dev); h->dev->ops->adjust_link(h, (int)speed, cmd->base.duplex); + netif_carrier_on(net_dev); return 0; } From 6e0bb04d0e4f597d8d8f4f21401a9636f2809fd1 Mon Sep 17 00:00:00 2001 From: Chris Brandt Date: Mon, 27 Aug 2018 12:42:02 -0500 Subject: [PATCH 0337/1762] sh_eth: Add R7S9210 support Add support for the R7S9210 which is part of the RZ/A2 series. Signed-off-by: Chris Brandt Acked-by: Rob Herring Signed-off-by: David S. Miller --- .../devicetree/bindings/net/sh_eth.txt | 1 + drivers/net/ethernet/renesas/sh_eth.c | 36 +++++++++++++++++++ 2 files changed, 37 insertions(+) diff --git a/Documentation/devicetree/bindings/net/sh_eth.txt b/Documentation/devicetree/bindings/net/sh_eth.txt index 76db9f13ad96..abc36274227c 100644 --- a/Documentation/devicetree/bindings/net/sh_eth.txt +++ b/Documentation/devicetree/bindings/net/sh_eth.txt @@ -16,6 +16,7 @@ Required properties: "renesas,ether-r8a7794" if the device is a part of R8A7794 SoC. "renesas,gether-r8a77980" if the device is a part of R8A77980 SoC. "renesas,ether-r7s72100" if the device is a part of R7S72100 SoC. + "renesas,ether-r7s9210" if the device is a part of R7S9210 SoC. "renesas,rcar-gen1-ether" for a generic R-Car Gen1 device. "renesas,rcar-gen2-ether" for a generic R-Car Gen2 or RZ/G1 device. diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index ad4433d59237..f27a0dc8c563 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -798,6 +798,41 @@ static struct sh_eth_cpu_data r8a77980_data = { .magic = 1, .cexcr = 1, }; + +/* R7S9210 */ +static struct sh_eth_cpu_data r7s9210_data = { + .soft_reset = sh_eth_soft_reset, + + .set_duplex = sh_eth_set_duplex, + .set_rate = sh_eth_set_rate_rcar, + + .register_type = SH_ETH_REG_FAST_SH4, + + .edtrr_trns = EDTRR_TRNS_ETHER, + .ecsr_value = ECSR_ICD, + .ecsipr_value = ECSIPR_ICDIP, + .eesipr_value = EESIPR_TWBIP | EESIPR_TABTIP | EESIPR_RABTIP | + EESIPR_RFCOFIP | EESIPR_ECIIP | EESIPR_FTCIP | + EESIPR_TDEIP | EESIPR_TFUFIP | EESIPR_FRIP | + EESIPR_RDEIP | EESIPR_RFOFIP | EESIPR_CNDIP | + EESIPR_DLCIP | EESIPR_CDIP | EESIPR_TROIP | + EESIPR_RMAFIP | EESIPR_RRFIP | EESIPR_RTLFIP | + EESIPR_RTSFIP | EESIPR_PREIP | EESIPR_CERFIP, + + .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_TRO, + .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | + EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE, + + .fdr_value = 0x0000070f, + + .apr = 1, + .mpr = 1, + .tpauser = 1, + .hw_swap = 1, + .rpadir = 1, + .no_ade = 1, + .xdfar_rw = 1, +}; #endif /* CONFIG_OF */ static void sh_eth_set_rate_sh7724(struct net_device *ndev) @@ -3121,6 +3156,7 @@ static const struct of_device_id sh_eth_match_table[] = { { .compatible = "renesas,ether-r8a7794", .data = &rcar_gen2_data }, { .compatible = "renesas,gether-r8a77980", .data = &r8a77980_data }, { .compatible = "renesas,ether-r7s72100", .data = &r7s72100_data }, + { .compatible = "renesas,ether-r7s9210", .data = &r7s9210_data }, { .compatible = "renesas,rcar-gen1-ether", .data = &rcar_gen1_data }, { .compatible = "renesas,rcar-gen2-ether", .data = &rcar_gen2_data }, { } From 85eb9af182243ce9a8b72410d5321c440ac5f8d7 Mon Sep 17 00:00:00 2001 From: Davide Caratti Date: Mon, 27 Aug 2018 22:56:22 +0200 Subject: [PATCH 0338/1762] net/sched: act_pedit: fix dump of extended layered op in the (rare) case of failure in nla_nest_start(), missing NULL checks in tcf_pedit_key_ex_dump() can make the following command # tc action add action pedit ex munge ip ttl set 64 dereference a NULL pointer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 PGD 800000007d1cd067 P4D 800000007d1cd067 PUD 7acd3067 PMD 0 Oops: 0002 [#1] SMP PTI CPU: 0 PID: 3336 Comm: tc Tainted: G E 4.18.0.pedit+ #425 Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 RIP: 0010:tcf_pedit_dump+0x19d/0x358 [act_pedit] Code: be 02 00 00 00 48 89 df 66 89 44 24 20 e8 9b b1 fd e0 85 c0 75 46 8b 83 c8 00 00 00 49 83 c5 08 48 03 83 d0 00 00 00 4d 39 f5 <66> 89 04 25 00 00 00 00 0f 84 81 01 00 00 41 8b 45 00 48 8d 4c 24 RSP: 0018:ffffb5d4004478a8 EFLAGS: 00010246 RAX: ffff8880fcda2070 RBX: ffff8880fadd2900 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffb5d4004478ca RDI: ffff8880fcda206e RBP: ffff8880fb9cb900 R08: 0000000000000008 R09: ffff8880fcda206e R10: ffff8880fadd2900 R11: 0000000000000000 R12: ffff8880fd26cf40 R13: ffff8880fc957430 R14: ffff8880fc957430 R15: ffff8880fb9cb988 FS: 00007f75a537a740(0000) GS:ffff8880fda00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000007a2fa005 CR4: 00000000001606f0 Call Trace: ? __nla_reserve+0x38/0x50 tcf_action_dump_1+0xd2/0x130 tcf_action_dump+0x6a/0xf0 tca_get_fill.constprop.31+0xa3/0x120 tcf_action_add+0xd1/0x170 tc_ctl_action+0x137/0x150 rtnetlink_rcv_msg+0x263/0x2d0 ? _cond_resched+0x15/0x40 ? rtnl_calcit.isra.30+0x110/0x110 netlink_rcv_skb+0x4d/0x130 netlink_unicast+0x1a3/0x250 netlink_sendmsg+0x2ae/0x3a0 sock_sendmsg+0x36/0x40 ___sys_sendmsg+0x26f/0x2d0 ? do_wp_page+0x8e/0x5f0 ? handle_pte_fault+0x6c3/0xf50 ? __handle_mm_fault+0x38e/0x520 ? __sys_sendmsg+0x5e/0xa0 __sys_sendmsg+0x5e/0xa0 do_syscall_64+0x5b/0x180 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f75a4583ba0 Code: c3 48 8b 05 f2 62 2c 00 f7 db 64 89 18 48 83 cb ff eb dd 0f 1f 80 00 00 00 00 83 3d fd c3 2c 00 00 75 10 b8 2e 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ae cc 00 00 48 89 04 24 RSP: 002b:00007fff60ee7418 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fff60ee7540 RCX: 00007f75a4583ba0 RDX: 0000000000000000 RSI: 00007fff60ee7490 RDI: 0000000000000003 RBP: 000000005b842d3e R08: 0000000000000002 R09: 0000000000000000 R10: 00007fff60ee6ea0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff60ee7554 R14: 0000000000000001 R15: 000000000066c100 Modules linked in: act_pedit(E) ip6table_filter ip6_tables iptable_filter binfmt_misc crct10dif_pclmul ext4 crc32_pclmul mbcache ghash_clmulni_intel jbd2 pcbc snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm aesni_intel crypto_simd snd_timer cryptd glue_helper snd joydev pcspkr soundcore virtio_balloon i2c_piix4 nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c ata_generic pata_acpi virtio_net net_failover virtio_blk virtio_console failover qxl crc32c_intel drm_kms_helper syscopyarea serio_raw sysfillrect sysimgblt fb_sys_fops ttm drm ata_piix virtio_pci libata virtio_ring i2c_core virtio floppy dm_mirror dm_region_hash dm_log dm_mod [last unloaded: act_pedit] CR2: 0000000000000000 Like it's done for other TC actions, give up dumping pedit rules and return an error if nla_nest_start() returns NULL. Fixes: 71d0ed7079df ("net/act_pedit: Support using offset relative to the conventional network headers") Signed-off-by: Davide Caratti Acked-by: Cong Wang Signed-off-by: David S. Miller --- net/sched/act_pedit.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c index 107034070019..ad99a99f11f6 100644 --- a/net/sched/act_pedit.c +++ b/net/sched/act_pedit.c @@ -109,16 +109,18 @@ static int tcf_pedit_key_ex_dump(struct sk_buff *skb, { struct nlattr *keys_start = nla_nest_start(skb, TCA_PEDIT_KEYS_EX); + if (!keys_start) + goto nla_failure; for (; n > 0; n--) { struct nlattr *key_start; key_start = nla_nest_start(skb, TCA_PEDIT_KEY_EX); + if (!key_start) + goto nla_failure; if (nla_put_u16(skb, TCA_PEDIT_KEY_EX_HTYPE, keys_ex->htype) || - nla_put_u16(skb, TCA_PEDIT_KEY_EX_CMD, keys_ex->cmd)) { - nlmsg_trim(skb, keys_start); - return -EINVAL; - } + nla_put_u16(skb, TCA_PEDIT_KEY_EX_CMD, keys_ex->cmd)) + goto nla_failure; nla_nest_end(skb, key_start); @@ -128,6 +130,9 @@ static int tcf_pedit_key_ex_dump(struct sk_buff *skb, nla_nest_end(skb, keys_start); return 0; +nla_failure: + nla_nest_cancel(skb, keys_start); + return -EINVAL; } static int tcf_pedit_init(struct net *net, struct nlattr *nla, @@ -418,7 +423,10 @@ static int tcf_pedit_dump(struct sk_buff *skb, struct tc_action *a, opt->bindcnt = atomic_read(&p->tcf_bindcnt) - bind; if (p->tcfp_keys_ex) { - tcf_pedit_key_ex_dump(skb, p->tcfp_keys_ex, p->tcfp_nkeys); + if (tcf_pedit_key_ex_dump(skb, + p->tcfp_keys_ex, + p->tcfp_nkeys)) + goto nla_put_failure; if (nla_put(skb, TCA_PEDIT_PARMS_EX, s, opt)) goto nla_put_failure; From afe49de44c27a89e8e9631c44b5ffadf6ace65e2 Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Tue, 28 Aug 2018 13:40:51 +0200 Subject: [PATCH 0339/1762] ipv6: fix cleanup ordering for ip6_mr failure Commit 15e668070a64 ("ipv6: reorder icmpv6_init() and ip6_mr_init()") moved the cleanup label for ipmr_fail, but should have changed the contents of the cleanup labels as well. Now we can end up cleaning up icmpv6 even though it hasn't been initialized (jump to icmp_fail or ipmr_fail). Simply undo things in the reverse order of their initialization. Example of panic (triggered by faking a failure of icmpv6_init): kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN PTI [...] RIP: 0010:__list_del_entry_valid+0x79/0x160 [...] Call Trace: ? lock_release+0x8a0/0x8a0 unregister_pernet_operations+0xd4/0x560 ? ops_free_list+0x480/0x480 ? down_write+0x91/0x130 ? unregister_pernet_subsys+0x15/0x30 ? down_read+0x1b0/0x1b0 ? up_read+0x110/0x110 ? kmem_cache_create_usercopy+0x1b4/0x240 unregister_pernet_subsys+0x1d/0x30 icmpv6_cleanup+0x1d/0x30 inet6_init+0x1b5/0x23f Fixes: 15e668070a64 ("ipv6: reorder icmpv6_init() and ip6_mr_init()") Signed-off-by: Sabrina Dubroca Signed-off-by: David S. Miller --- net/ipv6/af_inet6.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 673bba31eb18..e5da133c6932 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -1113,11 +1113,11 @@ netfilter_fail: igmp_fail: ndisc_cleanup(); ndisc_fail: - ip6_mr_cleanup(); -icmp_fail: - unregister_pernet_subsys(&inet6_net_ops); -ipmr_fail: icmpv6_cleanup(); +icmp_fail: + ip6_mr_cleanup(); +ipmr_fail: + unregister_pernet_subsys(&inet6_net_ops); register_pernet_fail: sock_unregister(PF_INET6); rtnl_unregister_all(PF_INET6); From a03dc36bdca6b614651fedfcd8559cf914d2d21d Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Tue, 28 Aug 2018 13:40:52 +0200 Subject: [PATCH 0340/1762] ipv6: fix cleanup ordering for pingv6 registration Commit 6d0bfe226116 ("net: ipv6: Add IPv6 support to the ping socket.") contains an error in the cleanup path of inet6_init(): when proto_register(&pingv6_prot, 1) fails, we try to unregister &pingv6_prot. When rawv6_init() fails, we skip unregistering &pingv6_prot. Example of panic (triggered by faking a failure of proto_register(&pingv6_prot, 1)): general protection fault: 0000 [#1] PREEMPT SMP KASAN PTI [...] RIP: 0010:__list_del_entry_valid+0x79/0x160 [...] Call Trace: proto_unregister+0xbb/0x550 ? trace_preempt_on+0x6f0/0x6f0 ? sock_no_shutdown+0x10/0x10 inet6_init+0x153/0x1b8 Fixes: 6d0bfe226116 ("net: ipv6: Add IPv6 support to the ping socket.") Signed-off-by: Sabrina Dubroca Signed-off-by: David S. Miller --- net/ipv6/af_inet6.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index e5da133c6932..9a4261e50272 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -938,14 +938,14 @@ static int __init inet6_init(void) err = proto_register(&pingv6_prot, 1); if (err) - goto out_unregister_ping_proto; + goto out_unregister_raw_proto; /* We MUST register RAW sockets before we create the ICMP6, * IGMP6, or NDISC control sockets. */ err = rawv6_init(); if (err) - goto out_unregister_raw_proto; + goto out_unregister_ping_proto; /* Register the family here so that the init calls below will * be able to create sockets. (?? is this dangerous ??) From f707ef61e17261f2bb18c3e4871c6f135ab3aba9 Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Tue, 28 Aug 2018 13:40:53 +0200 Subject: [PATCH 0341/1762] net: rtnl: return early from rtnl_unregister_all when protocol isn't registered rtnl_unregister_all(PF_INET6) gets called from inet6_init in cases when no handler has been registered for PF_INET6 yet, for example if ip6_mr_init() fails. Abort and avoid a NULL pointer deref in that case. Example of panic (triggered by faking a failure of register_pernet_subsys): general protection fault: 0000 [#1] PREEMPT SMP KASAN PTI [...] RIP: 0010:rtnl_unregister_all+0x17e/0x2a0 [...] Call Trace: ? rtnetlink_net_init+0x250/0x250 ? sock_unregister+0x103/0x160 ? kernel_getsockopt+0x200/0x200 inet6_init+0x197/0x20d Fixes: e2fddf5e96df ("[IPV6]: Make af_inet6 to check ip6_route_init return value.") Signed-off-by: Sabrina Dubroca Signed-off-by: David S. Miller --- net/core/rtnetlink.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 24431e578310..60c928894a78 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -324,6 +324,10 @@ void rtnl_unregister_all(int protocol) rtnl_lock(); tab = rtnl_msg_handlers[protocol]; + if (!tab) { + rtnl_unlock(); + return; + } RCU_INIT_POINTER(rtnl_msg_handlers[protocol], NULL); for (msgindex = 0; msgindex < RTM_NR_MSGTYPES; msgindex++) { link = tab[msgindex]; From c305660b325463cdf3d944492f96155dc931b448 Mon Sep 17 00:00:00 2001 From: Dinh Nguyen Date: Tue, 28 Aug 2018 10:19:20 -0500 Subject: [PATCH 0342/1762] net: stmmac: build the dwmac-socfpga platform driver for Stratix10 The Stratix10 SoC is an AARCH64 based platform that shares the same ethernet controller that is on other SoCFPGA platforms. Build the platform driver. Signed-off-by: Dinh Nguyen Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig index bf4acebb6bcd..324049eebb9b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -110,7 +110,7 @@ config DWMAC_ROCKCHIP config DWMAC_SOCFPGA tristate "SOCFPGA dwmac support" - default ARCH_SOCFPGA + default (ARCH_SOCFPGA || ARCH_STRATIX10) depends on OF && (ARCH_SOCFPGA || ARCH_STRATIX10 || COMPILE_TEST) select MFD_SYSCON help From c3c397c1f16c51601a3fac4fe0c63ad8aa85a904 Mon Sep 17 00:00:00 2001 From: Doug Berger Date: Tue, 28 Aug 2018 12:33:15 -0700 Subject: [PATCH 0343/1762] net: bcmgenet: use MAC link status for fixed phy When using the fixed PHY with GENET (e.g. MOCA) the PHY link status can be determined from the internal link status captured by the MAC. This allows the PHY state machine to use the correct link state with the fixed PHY even if MAC link event interrupts are missed when the net device is opened. Fixes: 8d88c6ebb34c ("net: bcmgenet: enable MoCA link state change detection") Signed-off-by: Doug Berger Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/genet/bcmgenet.h | 3 +++ drivers/net/ethernet/broadcom/genet/bcmmii.c | 10 ++++++++-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h b/drivers/net/ethernet/broadcom/genet/bcmgenet.h index b773bc07edf7..14b49612aa86 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h @@ -186,6 +186,9 @@ struct bcmgenet_mib_counters { #define UMAC_MAC1 0x010 #define UMAC_MAX_FRAME_LEN 0x014 +#define UMAC_MODE 0x44 +#define MODE_LINK_STATUS (1 << 5) + #define UMAC_EEE_CTRL 0x064 #define EN_LPI_RX_PAUSE (1 << 0) #define EN_LPI_TX_PFC (1 << 1) diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c index 5333274a283c..4241ae928d4a 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmmii.c +++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c @@ -115,8 +115,14 @@ void bcmgenet_mii_setup(struct net_device *dev) static int bcmgenet_fixed_phy_link_update(struct net_device *dev, struct fixed_phy_status *status) { - if (dev && dev->phydev && status) - status->link = dev->phydev->link; + struct bcmgenet_priv *priv; + u32 reg; + + if (dev && dev->phydev && status) { + priv = netdev_priv(dev); + reg = bcmgenet_umac_readl(priv, UMAC_MODE); + status->link = !!(reg & MODE_LINK_STATUS); + } return 0; } From 9174c1d6196d612799808009ec2796df021ab625 Mon Sep 17 00:00:00 2001 From: Xiaolin Zhang Date: Tue, 7 Aug 2018 20:39:16 +0800 Subject: [PATCH 0344/1762] drm/i915/gvt: emulate gen9 dbuf ctl register access there is below call track at boot time when booting guest with kabylake vgpu with specifal configuration and this try to fix it. [drm:gen9_dbuf_enable [i915]] *ERROR* DBuf power enable timeout ------------[ cut here ]------------ WARNING: gen9_dc_off_power_well_enable+0x224/0x230 [i915] Unexpected DBuf power power state (0x8000000a) Hardware name: Red Hat KVM, BIOS 1.11.0-2.el7 04/01/2014 Call Trace: [] dump_stack+0x19/0x1b [] __warn+0xd8/0x100 [] warn_slowpath_fmt+0x5f/0x80 [] gen9_dc_off_power_well_enable+0x224/0x230 [i915] [] intel_power_well_enable+0x42/0x50 [i915] [] __intel_display_power_get_domain+0x8a/0xb0 [i915] [] intel_display_power_get+0x33/0x50 [i915] [] intel_display_set_init_power+0x45/0x50 [i915] [] intel_power_domains_init_hw+0x63/0x8a0 [i915] [] i915_driver_load+0xae3/0x1760 [i915] [] ? nvmem_register+0x500/0x500 [] i915_pci_probe+0x2c/0x50 [i915] [] local_pci_probe+0x4a/0xb0 [] pci_device_probe+0x109/0x160 [] driver_probe_device+0xc5/0x3e0 [] __driver_attach+0x93/0xa0 [] ? __device_attach+0x50/0x50 [] bus_for_each_dev+0x75/0xc0 [] driver_attach+0x1e/0x20 [] bus_add_driver+0x200/0x2d0 [] driver_register+0x64/0xf0 [] __pci_register_driver+0xa5/0xc0 [] ? 0xffffffffc0928fff [] i915_init+0x59/0x5c [i915] [] do_one_initcall+0xba/0x240 [] load_module+0x272c/0x2bc0 [] ? ddebug_proc_write+0xf0/0xf0 [] SyS_init_module+0xc5/0x110 [] system_call_fastpath+0x1c/0x21 Signed-off-by: Xiaolin Zhang Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index 7a58ca555197..450e730743a1 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -1296,6 +1296,19 @@ static int power_well_ctl_mmio_write(struct intel_vgpu *vgpu, return 0; } +static int gen9_dbuf_ctl_mmio_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + write_vreg(vgpu, offset, p_data, bytes); + + if (vgpu_vreg(vgpu, offset) & DBUF_POWER_REQUEST) + vgpu_vreg(vgpu, offset) |= DBUF_POWER_STATE; + else + vgpu_vreg(vgpu, offset) &= ~DBUF_POWER_STATE; + + return 0; +} + static int fpga_dbg_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, void *p_data, unsigned int bytes) { @@ -2812,6 +2825,8 @@ static int init_skl_mmio_info(struct intel_gvt *gvt) MMIO_DH(HSW_PWR_WELL_CTL_DRIVER(SKL_DISP_PW_MISC_IO), D_SKL_PLUS, NULL, skl_power_well_ctl_write); + MMIO_DH(DBUF_CTL, D_SKL_PLUS, NULL, gen9_dbuf_ctl_mmio_write); + MMIO_D(_MMIO(0xa210), D_SKL_PLUS); MMIO_D(GEN9_MEDIA_PG_IDLE_HYSTERESIS, D_SKL_PLUS); MMIO_D(GEN9_RENDER_PG_IDLE_HYSTERESIS, D_SKL_PLUS); @@ -2987,8 +3002,6 @@ static int init_skl_mmio_info(struct intel_gvt *gvt) NULL, gen9_trtte_write); MMIO_DH(_MMIO(0x4dfc), D_SKL_PLUS, NULL, gen9_trtt_chicken_write); - MMIO_D(_MMIO(0x45008), D_SKL_PLUS); - MMIO_D(_MMIO(0x46430), D_SKL_PLUS); MMIO_D(_MMIO(0x46520), D_SKL_PLUS); From c8ab5ac30ccc20a31672ab0f8938a6271dfe4122 Mon Sep 17 00:00:00 2001 From: Colin Xu Date: Mon, 20 Aug 2018 16:46:34 +0800 Subject: [PATCH 0345/1762] drm/i915/gvt: Make correct handling to vreg BXT_PHY_CTL_FAMILY Guest kernel will write to BXT_PHY_CTL_FAMILY to reset DDI PHY and pull BXT_PHY_CTL to check PHY status. Previous handling will set/reset BXT_PHY_CTL of all PHYs at same time on receiving vreg write to some BXT_PHY_CTL_FAMILY. If some BXT_PHY_CTL is already enabled, following reset to another BXT_PHY_CTL_FAMILY will clear the enabled BXT_PHY_CTL, which result in guest kernel print: ----------------------------------- [drm:intel_ddi_get_hw_state [i915]] *ERROR* Port B enabled but PHY powered down? (PHY_CTL 00000000) ----------------------------------- The correct handling should operate BXT_PHY_CTL_FAMILY and BXT_PHY_CTL on the same DDI. v2: Use correct reg define. The naming looks confusing, however current i915_reg.h bind DPIO_PHY0 to _PHY_CTL_FAMILY_DDI and bind DPIO_PHY1 to _PHY_CTL_FAMILY_EDP, pairing to _BXT_PHY_CTL_DDI_A and _BXT_PHY_CTL_DDI_B respectively. v3: v2 incorrectly map _PHY_CTL_FAMILY_EDP to _BXT_PHY_CTL_DDI_A. BXT_PHY_CTL() looks up DDI using PORTx but not PHYx. Based on DPIO_PHY to DDI mapping, make correct vreg handle to BXT_PHY_CTL on receiving vreg write to BXT_PHY_CTL_FAMILY. (He, Min) Current mapping according to bxt_power_wells: dpio-common-a: >>> DPIO_PHY1 >>> BXT_DPIO_CMN_A_POWER_DOMAINS >>> POWER_DOMAIN_PORT_DDI_A_LANES >>> PORT_A dpio-common-bc: >>> DPIO_PHY0 >>> BXT_DPIO_CMN_BC_POWER_DOMAINS >>> POWER_DOMAIN_PORT_DDI_B_LANES | POWER_DOMAIN_PORT_DDI_C_LANES >>> PORT_B or PORT_C Signed-off-by: Colin Xu Reviewed-by: He, Min Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index 450e730743a1..d0db55a79627 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -1538,9 +1538,15 @@ static int bxt_phy_ctl_family_write(struct intel_vgpu *vgpu, u32 v = *(u32 *)p_data; u32 data = v & COMMON_RESET_DIS ? BXT_PHY_LANE_ENABLED : 0; - vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_A) = data; - vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_B) = data; - vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_C) = data; + switch (offset) { + case _PHY_CTL_FAMILY_EDP: + vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_A) = data; + break; + case _PHY_CTL_FAMILY_DDI: + vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_B) = data; + vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_C) = data; + break; + } vgpu_vreg(vgpu, offset) = v; From b9b824a55876275f8506c1c187558ab22d879f73 Mon Sep 17 00:00:00 2001 From: Colin Xu Date: Fri, 17 Aug 2018 16:42:24 +0800 Subject: [PATCH 0346/1762] drm/i915/gvt: Handle GEN9_WM_CHICKEN3 with F_CMD_ACCESS. Recent patch introduce strict check on scanning cmd: Commit 8d458ea0ec33 ("drm/i915/gvt: return error on cmd access") Before 8d458ea0ec33, if cmd_reg_handler() checks that a cmd access a mmio that not marked as F_CMD_ACCESS, it simply returns 0 and log an error. Now it will return -EBADRQC which will cause the workload fail to submit. On BXT, i915 applies WaClearHIZ_WM_CHICKEN3 which will program GEN9_WM_CHICKEN3 by LRI when init wa ctx. If it has no F_CMD_ACCESS flag, vgpu will fail to start. Also add F_MODE_MASK since it's mode mask reg. v2: Refresh commit message to elaborate issue symptom in detail. v3: Make SKL_PLUS share same handling since GEN9_WM_CHICKEN3 should be F_CMD_ACCESS from HW aspect. (yan, zhenyu) Signed-off-by: Colin Xu Acked-by: Zhao Yan Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index d0db55a79627..72afa518edd9 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -3044,7 +3044,9 @@ static int init_skl_mmio_info(struct intel_gvt *gvt) MMIO_D(_MMIO(0x44500), D_SKL_PLUS); MMIO_DFH(GEN9_CSFE_CHICKEN1_RCS, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL); MMIO_DFH(GEN8_HDC_CHICKEN1, D_SKL_PLUS, F_MODE_MASK | F_CMD_ACCESS, - NULL, NULL); + NULL, NULL); + MMIO_DFH(GEN9_WM_CHICKEN3, D_SKL_PLUS, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); MMIO_D(_MMIO(0x4ab8), D_KBL); MMIO_D(_MMIO(0x2248), D_KBL | D_SKL); From b2b599fb54f90ae395ddc51f0d49e4f28244a8f8 Mon Sep 17 00:00:00 2001 From: Hang Yuan Date: Wed, 29 Aug 2018 17:15:56 +0800 Subject: [PATCH 0347/1762] drm/i915/gvt: move intel_runtime_pm_get out of spin_lock in stop_schedule pm_runtime_get_sync in intel_runtime_pm_get might sleep if i915 device is not active. When stop vgpu schedule, the device may be inactive. So need to move runtime_pm_get out of spin_lock/unlock. Fixes: b24881e0b0b6("drm/i915/gvt: Add runtime_pm_get/put into gvt_switch_mmio Cc: Signed-off-by: Hang Yuan Signed-off-by: Xiong Zhang Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/mmio_context.c | 2 -- drivers/gpu/drm/i915/gvt/sched_policy.c | 3 +++ 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/mmio_context.c b/drivers/gpu/drm/i915/gvt/mmio_context.c index 42e1e6bdcc2c..e872f4847fbe 100644 --- a/drivers/gpu/drm/i915/gvt/mmio_context.c +++ b/drivers/gpu/drm/i915/gvt/mmio_context.c @@ -562,11 +562,9 @@ void intel_gvt_switch_mmio(struct intel_vgpu *pre, * performace for batch mmio read/write, so we need * handle forcewake mannually. */ - intel_runtime_pm_get(dev_priv); intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); switch_mmio(pre, next, ring_id); intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); - intel_runtime_pm_put(dev_priv); } /** diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.c b/drivers/gpu/drm/i915/gvt/sched_policy.c index 09d7bb72b4ff..985fe81794dd 100644 --- a/drivers/gpu/drm/i915/gvt/sched_policy.c +++ b/drivers/gpu/drm/i915/gvt/sched_policy.c @@ -426,6 +426,7 @@ void intel_vgpu_stop_schedule(struct intel_vgpu *vgpu) &vgpu->gvt->scheduler; int ring_id; struct vgpu_sched_data *vgpu_data = vgpu->sched_data; + struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; if (!vgpu_data->active) return; @@ -444,6 +445,7 @@ void intel_vgpu_stop_schedule(struct intel_vgpu *vgpu) scheduler->current_vgpu = NULL; } + intel_runtime_pm_get(dev_priv); spin_lock_bh(&scheduler->mmio_context_lock); for (ring_id = 0; ring_id < I915_NUM_ENGINES; ring_id++) { if (scheduler->engine_owner[ring_id] == vgpu) { @@ -452,5 +454,6 @@ void intel_vgpu_stop_schedule(struct intel_vgpu *vgpu) } } spin_unlock_bh(&scheduler->mmio_context_lock); + intel_runtime_pm_put(dev_priv); mutex_unlock(&vgpu->gvt->sched_lock); } From b244ffa15c8b1aabdc117c0b6008086df7b668b7 Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Thu, 30 Aug 2018 10:50:36 +0800 Subject: [PATCH 0348/1762] drm/i915/gvt: Fix drm_format_mod value for vGPU plane Physical plane's tiling mode value is given directly as drm_format_mod for plane query, which is not correct fourcc code. Fix it by using correct intel tiling fourcc mod definition. Current qemu seems also doesn't correctly utilize drm_format_mod for plane object setting. Anyway this is required to fix the usage. v3: use DRM_FORMAT_MOD_LINEAR, fix comment v2: Fix missed old 'tiled' use for stride calculation Fixes: e546e281d33d ("drm/i915/gvt: Dmabuf support for GVT-g") Cc: Tina Zhang Cc: Gerd Hoffmann Cc: Colin Xu Reviewed-by: Colin Xu Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/dmabuf.c | 33 +++++++++++++++++++++------ drivers/gpu/drm/i915/gvt/fb_decoder.c | 5 ++-- drivers/gpu/drm/i915/gvt/fb_decoder.h | 2 +- 3 files changed, 29 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/dmabuf.c b/drivers/gpu/drm/i915/gvt/dmabuf.c index 6e3f56684f4e..51ed99a37803 100644 --- a/drivers/gpu/drm/i915/gvt/dmabuf.c +++ b/drivers/gpu/drm/i915/gvt/dmabuf.c @@ -170,20 +170,22 @@ static struct drm_i915_gem_object *vgpu_create_gem(struct drm_device *dev, unsigned int tiling_mode = 0; unsigned int stride = 0; - switch (info->drm_format_mod << 10) { - case PLANE_CTL_TILED_LINEAR: + switch (info->drm_format_mod) { + case DRM_FORMAT_MOD_LINEAR: tiling_mode = I915_TILING_NONE; break; - case PLANE_CTL_TILED_X: + case I915_FORMAT_MOD_X_TILED: tiling_mode = I915_TILING_X; stride = info->stride; break; - case PLANE_CTL_TILED_Y: + case I915_FORMAT_MOD_Y_TILED: + case I915_FORMAT_MOD_Yf_TILED: tiling_mode = I915_TILING_Y; stride = info->stride; break; default: - gvt_dbg_core("not supported tiling mode\n"); + gvt_dbg_core("invalid drm_format_mod %llx for tiling\n", + info->drm_format_mod); } obj->tiling_and_stride = tiling_mode | stride; } else { @@ -222,9 +224,26 @@ static int vgpu_get_plane_info(struct drm_device *dev, info->height = p.height; info->stride = p.stride; info->drm_format = p.drm_format; - info->drm_format_mod = p.tiled; + + switch (p.tiled) { + case PLANE_CTL_TILED_LINEAR: + info->drm_format_mod = DRM_FORMAT_MOD_LINEAR; + break; + case PLANE_CTL_TILED_X: + info->drm_format_mod = I915_FORMAT_MOD_X_TILED; + break; + case PLANE_CTL_TILED_Y: + info->drm_format_mod = I915_FORMAT_MOD_Y_TILED; + break; + case PLANE_CTL_TILED_YF: + info->drm_format_mod = I915_FORMAT_MOD_Yf_TILED; + break; + default: + gvt_vgpu_err("invalid tiling mode: %x\n", p.tiled); + } + info->size = (((p.stride * p.height * p.bpp) / 8) + - (PAGE_SIZE - 1)) >> PAGE_SHIFT; + (PAGE_SIZE - 1)) >> PAGE_SHIFT; } else if (plane_id == DRM_PLANE_TYPE_CURSOR) { ret = intel_vgpu_decode_cursor_plane(vgpu, &c); if (ret) diff --git a/drivers/gpu/drm/i915/gvt/fb_decoder.c b/drivers/gpu/drm/i915/gvt/fb_decoder.c index face664be3e8..481896fb712a 100644 --- a/drivers/gpu/drm/i915/gvt/fb_decoder.c +++ b/drivers/gpu/drm/i915/gvt/fb_decoder.c @@ -220,8 +220,7 @@ int intel_vgpu_decode_primary_plane(struct intel_vgpu *vgpu, if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv) || IS_BROXTON(dev_priv)) { - plane->tiled = (val & PLANE_CTL_TILED_MASK) >> - _PLANE_CTL_TILED_SHIFT; + plane->tiled = val & PLANE_CTL_TILED_MASK; fmt = skl_format_to_drm( val & PLANE_CTL_FORMAT_MASK, val & PLANE_CTL_ORDER_RGBX, @@ -260,7 +259,7 @@ int intel_vgpu_decode_primary_plane(struct intel_vgpu *vgpu, return -EINVAL; } - plane->stride = intel_vgpu_get_stride(vgpu, pipe, (plane->tiled << 10), + plane->stride = intel_vgpu_get_stride(vgpu, pipe, plane->tiled, (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv) || IS_BROXTON(dev_priv)) ? diff --git a/drivers/gpu/drm/i915/gvt/fb_decoder.h b/drivers/gpu/drm/i915/gvt/fb_decoder.h index cb055f3c81a2..60c155085029 100644 --- a/drivers/gpu/drm/i915/gvt/fb_decoder.h +++ b/drivers/gpu/drm/i915/gvt/fb_decoder.h @@ -101,7 +101,7 @@ struct intel_gvt; /* color space conversion and gamma correction are not included */ struct intel_vgpu_primary_plane_format { u8 enabled; /* plane is enabled */ - u8 tiled; /* X-tiled */ + u32 tiled; /* tiling mode: linear, X-tiled, Y tiled, etc */ u8 bpp; /* bits per pixel */ u32 hw_format; /* format field in the PRI_CTL register */ u32 drm_format; /* format in DRM definition */ From c4053ef322081554765e1b708d6cdd8855e1d72d Mon Sep 17 00:00:00 2001 From: Baruch Siach Date: Wed, 29 Aug 2018 09:44:39 +0300 Subject: [PATCH 0349/1762] net: mvpp2: initialize port of_node pointer Without a valid of_node in struct device we can't find the mvpp2 port device by its DT node. Specifically, this breaks of_find_net_device_by_node(). For example, the Armada 8040 based Clearfog GT-8K uses Marvell 88E6141 switch connected to the &cp1_eth2 port: &cp1_mdio { ... switch0: switch0@4 { compatible = "marvell,mv88e6085"; ... ports { ... port@5 { reg = <5>; label = "cpu"; ethernet = <&cp1_eth2>; }; }; }; }; Without this patch, dsa_register_switch() returns -EPROBE_DEFER because of_find_net_device_by_node() can't find the device_node of the &cp1_eth2 device. Reviewed-by: Andrew Lunn Signed-off-by: Baruch Siach Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index 32d785b616e1..28500417843e 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -4803,6 +4803,7 @@ static int mvpp2_port_probe(struct platform_device *pdev, dev->min_mtu = ETH_MIN_MTU; /* 9704 == 9728 - 20 and rounding to 8 */ dev->max_mtu = MVPP2_BM_JUMBO_PKT_SIZE; + dev->dev.of_node = port_node; /* Phylink isn't used w/ ACPI as of now */ if (port_node) { From 97763dc0f4010bc20e2969a6bf9a40a2551c4f79 Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Wed, 29 Aug 2018 10:22:33 +0200 Subject: [PATCH 0350/1762] net_sched: reject unknown tcfa_action values After the commit 802bfb19152c ("net/sched: user-space can't set unknown tcfa_action values"), unknown tcfa_action values are converted to TC_ACT_UNSPEC, but the common agreement is instead rejecting such configurations. This change also introduces a helper to simplify the destruction of a single action, avoiding code duplication. v1 -> v2: - helper is now static and renamed according to act_* convention - updated extack message, according to the new behavior Fixes: 802bfb19152c ("net/sched: user-space can't set unknown tcfa_action values") Signed-off-by: Paolo Abeni Acked-by: Jiri Pirko Signed-off-by: David S. Miller --- net/sched/act_api.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/net/sched/act_api.c b/net/sched/act_api.c index db83dac1e7f4..316c98bb87e4 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -662,6 +662,13 @@ int tcf_action_destroy(struct tc_action *actions[], int bind) return ret; } +static int tcf_action_destroy_1(struct tc_action *a, int bind) +{ + struct tc_action *actions[] = { a, NULL }; + + return tcf_action_destroy(actions, bind); +} + static int tcf_action_put(struct tc_action *p) { return __tcf_action_put(p, false); @@ -881,17 +888,16 @@ struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp, if (TC_ACT_EXT_CMP(a->tcfa_action, TC_ACT_GOTO_CHAIN)) { err = tcf_action_goto_chain_init(a, tp); if (err) { - struct tc_action *actions[] = { a, NULL }; - - tcf_action_destroy(actions, bind); + tcf_action_destroy_1(a, bind); NL_SET_ERR_MSG(extack, "Failed to init TC action chain"); return ERR_PTR(err); } } if (!tcf_action_valid(a->tcfa_action)) { - NL_SET_ERR_MSG(extack, "invalid action value, using TC_ACT_UNSPEC instead"); - a->tcfa_action = TC_ACT_UNSPEC; + tcf_action_destroy_1(a, bind); + NL_SET_ERR_MSG(extack, "Invalid control action value"); + return ERR_PTR(-EINVAL); } return a; From 25a8238f4cc8425d4aade4f9041be468d0e8aa2e Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Wed, 29 Aug 2018 10:22:34 +0200 Subject: [PATCH 0351/1762] tc-testing: add test-cases for numeric and invalid control action Only the police action allows us to specify an arbitrary numeric value for the control action. This change introduces an explicit test case for the above feature and then leverage it for testing the kernel behavior for invalid control actions (reject). Signed-off-by: Paolo Abeni Signed-off-by: David S. Miller --- .../tc-testing/tc-tests/actions/police.json | 48 +++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/police.json b/tools/testing/selftests/tc-testing/tc-tests/actions/police.json index f03763d81617..30f9b54bd666 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/actions/police.json +++ b/tools/testing/selftests/tc-testing/tc-tests/actions/police.json @@ -312,6 +312,54 @@ "$TC actions flush action police" ] }, + { + "id": "6aaf", + "name": "Add police actions with conform-exceed control pass/pipe [with numeric values]", + "category": [ + "actions", + "police" + ], + "setup": [ + [ + "$TC actions flush action police", + 0, + 1, + 255 + ] + ], + "cmdUnderTest": "$TC actions add action police rate 3mbit burst 250k conform-exceed 0/3 index 1", + "expExitCode": "0", + "verifyCmd": "$TC actions get action police index 1", + "matchPattern": "action order [0-9]*: police 0x1 rate 3Mbit burst 250Kb mtu 2Kb action pass/pipe", + "matchCount": "1", + "teardown": [ + "$TC actions flush action police" + ] + }, + { + "id": "29b1", + "name": "Add police actions with conform-exceed control /drop", + "category": [ + "actions", + "police" + ], + "setup": [ + [ + "$TC actions flush action police", + 0, + 1, + 255 + ] + ], + "cmdUnderTest": "$TC actions add action police rate 3mbit burst 250k conform-exceed 10/drop index 1", + "expExitCode": "255", + "verifyCmd": "$TC actions ls action police", + "matchPattern": "action order [0-9]*: police 0x1 rate 3Mbit burst 250Kb mtu 2Kb action ", + "matchCount": "0", + "teardown": [ + "$TC actions flush action police" + ] + }, { "id": "c26f", "name": "Add police action with invalid peakrate value", From 4f0223bfe9c3e62d8f45a85f1ef1b18a8a263ef9 Mon Sep 17 00:00:00 2001 From: Arunk Khandavalli Date: Thu, 30 Aug 2018 00:40:16 +0300 Subject: [PATCH 0352/1762] cfg80211: nl80211_update_ft_ies() to validate NL80211_ATTR_IE nl80211_update_ft_ies() tried to validate NL80211_ATTR_IE with is_valid_ie_attr() before dereferencing it, but that helper function returns true in case of NULL pointer (i.e., attribute not included). This can result to dereferencing a NULL pointer. Fix that by explicitly checking that NL80211_ATTR_IE is included. Fixes: 355199e02b83 ("cfg80211: Extend support for IEEE 802.11r Fast BSS Transition") Signed-off-by: Arunk Khandavalli Signed-off-by: Jouni Malinen Signed-off-by: Johannes Berg --- net/wireless/nl80211.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index ce0149a86c13..733ccf867972 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -12099,6 +12099,7 @@ static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info) return -EOPNOTSUPP; if (!info->attrs[NL80211_ATTR_MDID] || + !info->attrs[NL80211_ATTR_IE] || !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) return -EINVAL; From 1eb507903665442360a959136dfa3234c43db085 Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Wed, 29 Aug 2018 21:03:25 +0200 Subject: [PATCH 0353/1762] mac80211: do not convert to A-MSDU if frag/subframe limited Do not start to aggregate packets in a A-MSDU frame (converting the first subframe to A-MSDU, adding the header) if max_tx_fragments or max_amsdu_subframes limits are already exceeded by it. In particular, this happens when drivers set the limit to 1 to avoid A-MSDUs at all. Signed-off-by: Lorenzo Bianconi [reword commit message to be more precise] Signed-off-by: Johannes Berg --- net/mac80211/tx.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 667a73d6eb5c..1aac5e3c7eee 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -3208,9 +3208,6 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata, if (skb->len + head->len > max_amsdu_len) goto out; - if (!ieee80211_amsdu_prepare_head(sdata, fast_tx, head)) - goto out; - nfrags = 1 + skb_shinfo(skb)->nr_frags; nfrags += 1 + skb_shinfo(head)->nr_frags; frag_tail = &skb_shinfo(head)->frag_list; @@ -3226,6 +3223,9 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata, if (max_frags && nfrags > max_frags) goto out; + if (!ieee80211_amsdu_prepare_head(sdata, fast_tx, head)) + goto out; + /* * Pad out the previous subframe to a multiple of 4 by adding the * padding to the next one, that's being added. Note that head->len From 43822c98f2ebb2cbd5e467ab72bbcdae7f0caa22 Mon Sep 17 00:00:00 2001 From: Harry Mallon Date: Tue, 28 Aug 2018 22:51:29 +0100 Subject: [PATCH 0354/1762] HID: hid-saitek: Add device ID for RAT 7 Contagion Signed-off-by: Harry Mallon Signed-off-by: Jiri Kosina --- drivers/hid/hid-ids.h | 1 + drivers/hid/hid-saitek.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index cb2d3170d9dc..19a66ceca217 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -953,6 +953,7 @@ #define USB_DEVICE_ID_SAITEK_RUMBLEPAD 0xff17 #define USB_DEVICE_ID_SAITEK_PS1000 0x0621 #define USB_DEVICE_ID_SAITEK_RAT7_OLD 0x0ccb +#define USB_DEVICE_ID_SAITEK_RAT7_CONTAGION 0x0ccd #define USB_DEVICE_ID_SAITEK_RAT7 0x0cd7 #define USB_DEVICE_ID_SAITEK_RAT9 0x0cfa #define USB_DEVICE_ID_SAITEK_MMO7 0x0cd0 diff --git a/drivers/hid/hid-saitek.c b/drivers/hid/hid-saitek.c index 39e642686ff0..683861f324e3 100644 --- a/drivers/hid/hid-saitek.c +++ b/drivers/hid/hid-saitek.c @@ -183,6 +183,8 @@ static const struct hid_device_id saitek_devices[] = { .driver_data = SAITEK_RELEASE_MODE_RAT7 }, { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7), .driver_data = SAITEK_RELEASE_MODE_RAT7 }, + { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7_CONTAGION), + .driver_data = SAITEK_RELEASE_MODE_RAT7 }, { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT9), .driver_data = SAITEK_RELEASE_MODE_RAT7 }, { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT9), From aa58acf325b4aadeecae2bfc90658273b47dbace Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 30 Aug 2018 10:55:49 +0200 Subject: [PATCH 0355/1762] mac80211: always account for A-MSDU header changes In the error path of changing the SKB headroom of the second A-MSDU subframe, we would not account for the already-changed length of the first frame that just got converted to be in A-MSDU format and thus is a bit longer now. Fix this by doing the necessary accounting. It would be possible to reorder the operations, but that would make the code more complex (to calculate the necessary pad), and the headroom expansion should not fail frequently enough to make that worthwhile. Fixes: 6e0456b54545 ("mac80211: add A-MSDU tx support") Signed-off-by: Johannes Berg Acked-by: Lorenzo Bianconi Signed-off-by: Johannes Berg --- net/mac80211/tx.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 1aac5e3c7eee..6ca0865de945 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -3239,7 +3239,7 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata, if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(rfc1042_header) + 2 + pad)) - goto out; + goto out_recalc; ret = true; data = skb_push(skb, ETH_ALEN + 2); @@ -3256,11 +3256,13 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata, head->data_len += skb->len; *frag_tail = skb; - flow->backlog += head->len - orig_len; - tin->backlog_bytes += head->len - orig_len; - - fq_recalc_backlog(fq, tin, flow); +out_recalc: + if (head->len != orig_len) { + flow->backlog += head->len - orig_len; + tin->backlog_bytes += head->len - orig_len; + fq_recalc_backlog(fq, tin, flow); + } out: spin_unlock_bh(&fq->lock); From 36bf9da2913054c218337d8cd7cb11bddc1fafb0 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 27 Aug 2018 14:45:14 +0900 Subject: [PATCH 0356/1762] x86/build: Remove jump label quirk for GCC older than 4.5.2 Commit cafa0010cd51 ("Raise the minimum required gcc version to 4.6") bumped the minimum GCC version to 4.6 for all architectures. Remove the workaround code. It was the only user of cc-if-fullversion. Remove the macro as well. Signed-off-by: Masahiro Yamada Signed-off-by: Thomas Gleixner Cc: "H. Peter Anvin" Cc: Michal Marek Cc: linux-kbuild@vger.kernel.org Link: https://lkml.kernel.org/r/1535348714-25457-1-git-send-email-yamada.masahiro@socionext.com --- arch/x86/Makefile | 12 ------------ scripts/Kbuild.include | 4 ---- 2 files changed, 16 deletions(-) diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 94859241bc3e..8fc8f94ef5f5 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -179,18 +179,6 @@ ifndef CC_HAVE_ASM_GOTO $(error Compiler lacks asm-goto support.) endif -# -# Jump labels need '-maccumulate-outgoing-args' for gcc < 4.5.2 to prevent a -# GCC bug (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46226). There's no way -# to test for this bug at compile-time because the test case needs to execute, -# which is a no-go for cross compilers. So check the GCC version instead. -# -ifdef CONFIG_JUMP_LABEL - ifneq ($(ACCUMULATE_OUTGOING_ARGS), 1) - ACCUMULATE_OUTGOING_ARGS = $(call cc-if-fullversion, -lt, 040502, 1) - endif -endif - ifeq ($(ACCUMULATE_OUTGOING_ARGS), 1) # This compiler flag is not supported by Clang: KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args,) diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index c75413d05a63..ce53639a864a 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -153,10 +153,6 @@ cc-fullversion = $(shell $(CONFIG_SHELL) \ # Usage: EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1) cc-ifversion = $(shell [ $(cc-version) $(1) $(2) ] && echo $(3) || echo $(4)) -# cc-if-fullversion -# Usage: EXTRA_CFLAGS += $(call cc-if-fullversion, -lt, 040502, -O1) -cc-if-fullversion = $(shell [ $(cc-fullversion) $(1) $(2) ] && echo $(3) || echo $(4)) - # cc-ldoption # Usage: ldflags += $(call cc-ldoption, -Wl$(comma)--hash-style=both) cc-ldoption = $(call try-run,\ From 1f59a4581b5ecfe9b4f049a7a2cf904d8352842d Mon Sep 17 00:00:00 2001 From: Nick Desaulniers Date: Mon, 27 Aug 2018 14:40:09 -0700 Subject: [PATCH 0357/1762] x86/irqflags: Mark native_restore_fl extern inline This should have been marked extern inline in order to pick up the out of line definition in arch/x86/kernel/irqflags.S. Fixes: 208cbb325589 ("x86/irqflags: Provide a declaration for native_save_fl") Reported-by: Ben Hutchings Signed-off-by: Nick Desaulniers Signed-off-by: Thomas Gleixner Reviewed-by: Juergen Gross Cc: "H. Peter Anvin" Cc: Boris Ostrovsky Cc: Greg Kroah-Hartman Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180827214011.55428-1-ndesaulniers@google.com --- arch/x86/include/asm/irqflags.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h index c14f2a74b2be..15450a675031 100644 --- a/arch/x86/include/asm/irqflags.h +++ b/arch/x86/include/asm/irqflags.h @@ -33,7 +33,8 @@ extern inline unsigned long native_save_fl(void) return flags; } -static inline void native_restore_fl(unsigned long flags) +extern inline void native_restore_fl(unsigned long flags); +extern inline void native_restore_fl(unsigned long flags) { asm volatile("push %0 ; popf" : /* no output */ From f12d11c5c184626b4befdee3d573ec8237405a33 Mon Sep 17 00:00:00 2001 From: Jann Horn Date: Tue, 28 Aug 2018 20:40:33 +0200 Subject: [PATCH 0358/1762] x86/entry/64: Wipe KASAN stack shadow before rewind_stack_do_exit() Reset the KASAN shadow state of the task stack before rewinding RSP. Without this, a kernel oops will leave parts of the stack poisoned, and code running under do_exit() can trip over such poisoned regions and cause nonsensical false-positive KASAN reports about stack-out-of-bounds bugs. This does not wipe the exception stacks; if an oops happens on an exception stack, it might result in random KASAN false-positives from other tasks afterwards. This is probably relatively uninteresting, since if the kernel oopses on an exception stack, there are most likely bigger things to worry about. It'd be more interesting if vmapped stacks and KASAN were compatible, since then handle_stack_overflow() would oops from exception stack context. Fixes: 2deb4be28077 ("x86/dumpstack: When OOPSing, rewind the stack before do_exit()") Signed-off-by: Jann Horn Signed-off-by: Thomas Gleixner Acked-by: Andrey Ryabinin Cc: Andy Lutomirski Cc: Dmitry Vyukov Cc: Alexander Potapenko Cc: Kees Cook Cc: kasan-dev@googlegroups.com Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180828184033.93712-1-jannh@google.com --- arch/x86/kernel/dumpstack.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index 9c8652974f8e..1596e6bfea6f 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -346,7 +347,10 @@ void oops_end(unsigned long flags, struct pt_regs *regs, int signr) * We're not going to return, but we might be on an IST stack or * have very little stack space left. Rewind the stack and kill * the task. + * Before we rewind the stack, we have to tell KASAN that we're going to + * reuse the task stack and that existing poisons are invalid. */ + kasan_unpoison_task_stack(current); rewind_stack_do_exit(signr); } NOKPROBE_SYMBOL(oops_end); From cb9d7fd51d9fbb329d182423bd7b92d0f8cb0e01 Mon Sep 17 00:00:00 2001 From: Vincent Whitchurch Date: Tue, 21 Aug 2018 17:25:07 +0200 Subject: [PATCH 0359/1762] watchdog: Mark watchdog touch functions as notrace Some architectures need to use stop_machine() to patch functions for ftrace, and the assumption is that the stopped CPUs do not make function calls to traceable functions when they are in the stopped state. Commit ce4f06dcbb5d ("stop_machine: Touch_nmi_watchdog() after MULTI_STOP_PREPARE") added calls to the watchdog touch functions from the stopped CPUs and those functions lack notrace annotations. This leads to crashes when enabling/disabling ftrace on ARM kernels built with the Thumb-2 instruction set. Fix it by adding the necessary notrace annotations. Fixes: ce4f06dcbb5d ("stop_machine: Touch_nmi_watchdog() after MULTI_STOP_PREPARE") Signed-off-by: Vincent Whitchurch Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra Cc: oleg@redhat.com Cc: tj@kernel.org Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180821152507.18313-1-vincent.whitchurch@axis.com --- kernel/watchdog.c | 4 ++-- kernel/watchdog_hld.c | 2 +- kernel/workqueue.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/kernel/watchdog.c b/kernel/watchdog.c index 5470dce212c0..977918d5d350 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -261,7 +261,7 @@ static void __touch_watchdog(void) * entering idle state. This should only be used for scheduler events. * Use touch_softlockup_watchdog() for everything else. */ -void touch_softlockup_watchdog_sched(void) +notrace void touch_softlockup_watchdog_sched(void) { /* * Preemption can be enabled. It doesn't matter which CPU's timestamp @@ -270,7 +270,7 @@ void touch_softlockup_watchdog_sched(void) raw_cpu_write(watchdog_touch_ts, 0); } -void touch_softlockup_watchdog(void) +notrace void touch_softlockup_watchdog(void) { touch_softlockup_watchdog_sched(); wq_watchdog_touch(raw_smp_processor_id()); diff --git a/kernel/watchdog_hld.c b/kernel/watchdog_hld.c index 1f7020d65d0a..71381168dede 100644 --- a/kernel/watchdog_hld.c +++ b/kernel/watchdog_hld.c @@ -29,7 +29,7 @@ static struct cpumask dead_events_mask; static unsigned long hardlockup_allcpu_dumped; static atomic_t watchdog_cpus = ATOMIC_INIT(0); -void arch_touch_nmi_watchdog(void) +notrace void arch_touch_nmi_watchdog(void) { /* * Using __raw here because some code paths have diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 60e80198c3df..0280deac392e 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -5574,7 +5574,7 @@ static void wq_watchdog_timer_fn(struct timer_list *unused) mod_timer(&wq_watchdog_timer, jiffies + thresh); } -void wq_watchdog_touch(int cpu) +notrace void wq_watchdog_touch(int cpu) { if (cpu >= 0) per_cpu(wq_watchdog_touched_cpu, cpu) = jiffies; From 13ba17bee18e321b073b49a88dcab10881f757da Mon Sep 17 00:00:00 2001 From: Mukesh Ojha Date: Fri, 24 Aug 2018 18:03:53 +0530 Subject: [PATCH 0360/1762] notifier: Remove notifier header file wherever not used The conversion of the hotplug notifiers to a state machine left the notifier.h includes around in some places. Remove them. Signed-off-by: Mukesh Ojha Signed-off-by: Thomas Gleixner Link: https://lkml.kernel.org/r/1535114033-4605-1-git-send-email-mojha@codeaurora.org --- fs/buffer.c | 1 - kernel/printk/printk.c | 1 - lib/percpu_counter.c | 1 - mm/page-writeback.c | 1 - mm/page_alloc.c | 1 - mm/slub.c | 1 - net/core/dev.c | 1 - 7 files changed, 7 deletions(-) diff --git a/fs/buffer.c b/fs/buffer.c index 4cc679d5bf58..6f1ae3ac9789 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -39,7 +39,6 @@ #include #include #include -#include #include #include #include diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index 924e37fb1620..fd6f8ed28e01 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -38,7 +38,6 @@ #include #include #include -#include #include #include #include diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c index c72577e472f2..a66595ba5543 100644 --- a/lib/percpu_counter.c +++ b/lib/percpu_counter.c @@ -4,7 +4,6 @@ */ #include -#include #include #include #include diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 6551d3b0dc30..84ae9bf5858a 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -27,7 +27,6 @@ #include #include #include -#include #include #include #include diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e75865d58ba7..05e983f42316 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -32,7 +32,6 @@ #include #include #include -#include #include #include #include diff --git a/mm/slub.c b/mm/slub.c index ce2b9e5cea77..8da34a8af53d 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -19,7 +19,6 @@ #include #include "slab.h" #include -#include #include #include #include diff --git a/net/core/dev.c b/net/core/dev.c index 325fc5088370..82114e1111e6 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -93,7 +93,6 @@ #include #include #include -#include #include #include #include From 113fc08357ad4e8b84caa75402430875d9ac4c1a Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 27 Aug 2018 12:39:43 +0900 Subject: [PATCH 0361/1762] objtool: Remove workaround for unreachable warnings from old GCC Commit cafa0010cd51 ("Raise the minimum required gcc version to 4.6") bumped the minimum GCC version to 4.6 for all architectures. This effectively reverts commit da541b20021c ("objtool: Skip unreachable warnings for GCC 4.4 and older"), which was a workaround for GCC 4.4 or older. Signed-off-by: Masahiro Yamada Signed-off-by: Thomas Gleixner Acked-by: Josh Poimboeuf Cc: Peter Zijlstra Cc: Michal Marek Cc: linux-kbuild@vger.kernel.org Link: https://lkml.kernel.org/r/1535341183-19994-1-git-send-email-yamada.masahiro@socionext.com --- scripts/Makefile.build | 2 -- 1 file changed, 2 deletions(-) diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 1c48572223d1..5a2d1c9578a0 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -246,8 +246,6 @@ objtool_args += --no-fp endif ifdef CONFIG_GCOV_KERNEL objtool_args += --no-unreachable -else -objtool_args += $(call cc-ifversion, -lt, 0405, --no-unreachable) endif ifdef CONFIG_RETPOLINE ifneq ($(RETPOLINE_CFLAGS),) From 9222f606506c5f8ca2c8b8c939d59ed3e6ac4148 Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Tue, 28 Aug 2018 08:55:14 +0200 Subject: [PATCH 0362/1762] x86/alternatives: Lockdep-enforce text_mutex in text_poke*() text_poke() and text_poke_bp() must be called with text_mutex held. Put proper lockdep anotation in place instead of just mentioning the requirement in a comment. Reported-by: Peter Zijlstra Signed-off-by: Jiri Kosina Signed-off-by: Thomas Gleixner Acked-by: Peter Zijlstra (Intel) Acked-by: Masami Hiramatsu Cc: Andy Lutomirski Link: https://lkml.kernel.org/r/nycvar.YFH.7.76.1808280853520.25787@cbobk.fhfr.pm --- arch/x86/kernel/alternative.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index 014f214da581..b9d5e7c9ef43 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -684,8 +684,6 @@ void *__init_or_module text_poke_early(void *addr, const void *opcode, * It means the size must be writable atomically and the address must be aligned * in a way that permits an atomic write. It also makes sure we fit on a single * page. - * - * Note: Must be called under text_mutex. */ void *text_poke(void *addr, const void *opcode, size_t len) { @@ -700,6 +698,8 @@ void *text_poke(void *addr, const void *opcode, size_t len) */ BUG_ON(!after_bootmem); + lockdep_assert_held(&text_mutex); + if (!core_kernel_text((unsigned long)addr)) { pages[0] = vmalloc_to_page(addr); pages[1] = vmalloc_to_page(addr + PAGE_SIZE); @@ -782,8 +782,6 @@ int poke_int3_handler(struct pt_regs *regs) * - replace the first byte (int3) by the first byte of * replacing opcode * - sync cores - * - * Note: must be called under text_mutex. */ void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler) { @@ -792,6 +790,9 @@ void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler) bp_int3_handler = handler; bp_int3_addr = (u8 *)addr + sizeof(int3); bp_patching_in_progress = true; + + lockdep_assert_held(&text_mutex); + /* * Corresponding read barrier in int3 notifier for making sure the * in_progress and handler are correctly ordered wrt. patching. From 26e609eccd37967d3681662433086894830c5d62 Mon Sep 17 00:00:00 2001 From: Uros Bizjak Date: Tue, 14 Aug 2018 18:59:51 +0200 Subject: [PATCH 0363/1762] x86/asm: Use CC_SET()/CC_OUT() in __gen_sigismember() Replace open-coded set instructions with CC_SET()/CC_OUT(). Signed-off-by: Uros Bizjak Signed-off-by: Thomas Gleixner Link: https://lkml.kernel.org/r/20180814165951.13538-1-ubizjak@gmail.com --- arch/x86/include/asm/signal.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/x86/include/asm/signal.h b/arch/x86/include/asm/signal.h index 5f9012ff52ed..33d3c88a7225 100644 --- a/arch/x86/include/asm/signal.h +++ b/arch/x86/include/asm/signal.h @@ -39,6 +39,7 @@ extern void do_signal(struct pt_regs *regs); #define __ARCH_HAS_SA_RESTORER +#include #include #ifdef __i386__ @@ -86,9 +87,9 @@ static inline int __const_sigismember(sigset_t *set, int _sig) static inline int __gen_sigismember(sigset_t *set, int _sig) { - unsigned char ret; - asm("btl %2,%1\n\tsetc %0" - : "=qm"(ret) : "m"(*set), "Ir"(_sig-1) : "cc"); + bool ret; + asm("btl %2,%1" CC_SET(c) + : CC_OUT(c) (ret) : "m"(*set), "Ir"(_sig-1)); return ret; } From 7915919bb94e12460c58e27c708472e6f85f6699 Mon Sep 17 00:00:00 2001 From: Vincent Pelletier Date: Mon, 27 Aug 2018 14:45:15 -0500 Subject: [PATCH 0364/1762] scsi: iscsi: target: Set conn->sess to NULL when iscsi_login_set_conn_values fails Fixes a use-after-free reported by KASAN when later iscsi_target_login_sess_out gets called and it tries to access conn->sess->se_sess: Disabling lock debugging due to kernel taint iSCSI Login timeout on Network Portal [::]:3260 iSCSI Login negotiation failed. ================================================================== BUG: KASAN: use-after-free in iscsi_target_login_sess_out.cold.12+0x58/0xff [iscsi_target_mod] Read of size 8 at addr ffff880109d070c8 by task iscsi_np/980 CPU: 1 PID: 980 Comm: iscsi_np Tainted: G O 4.17.8kasan.sess.connops+ #4 Hardware name: To be filled by O.E.M. To be filled by O.E.M./Aptio CRB, BIOS 5.6.5 05/19/2014 Call Trace: dump_stack+0x71/0xac print_address_description+0x65/0x22e ? iscsi_target_login_sess_out.cold.12+0x58/0xff [iscsi_target_mod] kasan_report.cold.6+0x241/0x2fd iscsi_target_login_sess_out.cold.12+0x58/0xff [iscsi_target_mod] iscsi_target_login_thread+0x1086/0x1710 [iscsi_target_mod] ? __sched_text_start+0x8/0x8 ? iscsi_target_login_sess_out+0x250/0x250 [iscsi_target_mod] ? __kthread_parkme+0xcc/0x100 ? parse_args.cold.14+0xd3/0xd3 ? iscsi_target_login_sess_out+0x250/0x250 [iscsi_target_mod] kthread+0x1a0/0x1c0 ? kthread_bind+0x30/0x30 ret_from_fork+0x35/0x40 Allocated by task 980: kasan_kmalloc+0xbf/0xe0 kmem_cache_alloc_trace+0x112/0x210 iscsi_target_login_thread+0x816/0x1710 [iscsi_target_mod] kthread+0x1a0/0x1c0 ret_from_fork+0x35/0x40 Freed by task 980: __kasan_slab_free+0x125/0x170 kfree+0x90/0x1d0 iscsi_target_login_thread+0x1577/0x1710 [iscsi_target_mod] kthread+0x1a0/0x1c0 ret_from_fork+0x35/0x40 The buggy address belongs to the object at ffff880109d06f00 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 456 bytes inside of 512-byte region [ffff880109d06f00, ffff880109d07100) The buggy address belongs to the page: page:ffffea0004274180 count:1 mapcount:0 mapping:0000000000000000 index:0x0 compound_mapcount: 0 flags: 0x17fffc000008100(slab|head) raw: 017fffc000008100 0000000000000000 0000000000000000 00000001000c000c raw: dead000000000100 dead000000000200 ffff88011b002e00 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff880109d06f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff880109d07000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff880109d07080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff880109d07100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff880109d07180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== Signed-off-by: Vincent Pelletier [rebased against idr/ida changes and to handle ret review comments from Matthew] Signed-off-by: Mike Christie Cc: Matthew Wilcox Reviewed-by: Matthew Wilcox Signed-off-by: Martin K. Petersen --- drivers/target/iscsi/iscsi_target_login.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index 9e74f8bc2963..f58b9c1d6fd4 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -310,11 +310,9 @@ static int iscsi_login_zero_tsih_s1( return -ENOMEM; } - ret = iscsi_login_set_conn_values(sess, conn, pdu->cid); - if (unlikely(ret)) { - kfree(sess); - return ret; - } + if (iscsi_login_set_conn_values(sess, conn, pdu->cid)) + goto free_sess; + sess->init_task_tag = pdu->itt; memcpy(&sess->isid, pdu->isid, 6); sess->exp_cmd_sn = be32_to_cpu(pdu->cmdsn); From 05a86e78ea9823ec25b3515db078dd8a76fc263c Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 27 Aug 2018 14:45:16 -0500 Subject: [PATCH 0365/1762] scsi: iscsi: target: Fix conn_ops double free If iscsi_login_init_conn fails it can free conn_ops. __iscsi_target_login_thread will then call iscsi_target_login_sess_out which will also free it. This fixes the problem by organizing conn allocation/setup into parts that are needed through the life of the conn and parts that are only needed for the login. The free functions then release what was allocated in the alloc functions. With this patch we have: iscsit_alloc_conn/iscsit_free_conn - allocs/frees the conn we need for the entire life of the conn. iscsi_login_init_conn/iscsi_target_nego_release - allocs/frees the parts of the conn that are only needed during login. Signed-off-by: Mike Christie Signed-off-by: Martin K. Petersen --- drivers/target/iscsi/iscsi_target.c | 9 +- drivers/target/iscsi/iscsi_target_login.c | 141 ++++++++++++---------- drivers/target/iscsi/iscsi_target_login.h | 2 +- 3 files changed, 77 insertions(+), 75 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 94bad43c41ff..9cdfccbdd06f 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -4208,22 +4208,15 @@ int iscsit_close_connection( crypto_free_ahash(tfm); } - free_cpumask_var(conn->conn_cpumask); - - kfree(conn->conn_ops); - conn->conn_ops = NULL; - if (conn->sock) sock_release(conn->sock); if (conn->conn_transport->iscsit_free_conn) conn->conn_transport->iscsit_free_conn(conn); - iscsit_put_transport(conn->conn_transport); - pr_debug("Moving to TARG_CONN_STATE_FREE.\n"); conn->conn_state = TARG_CONN_STATE_FREE; - kfree(conn); + iscsit_free_conn(conn); spin_lock_bh(&sess->conn_lock); atomic_dec(&sess->nconn); diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index f58b9c1d6fd4..bb90c80ff388 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -67,45 +67,10 @@ static struct iscsi_login *iscsi_login_init_conn(struct iscsi_conn *conn) goto out_req_buf; } - conn->conn_ops = kzalloc(sizeof(struct iscsi_conn_ops), GFP_KERNEL); - if (!conn->conn_ops) { - pr_err("Unable to allocate memory for" - " struct iscsi_conn_ops.\n"); - goto out_rsp_buf; - } - - init_waitqueue_head(&conn->queues_wq); - INIT_LIST_HEAD(&conn->conn_list); - INIT_LIST_HEAD(&conn->conn_cmd_list); - INIT_LIST_HEAD(&conn->immed_queue_list); - INIT_LIST_HEAD(&conn->response_queue_list); - init_completion(&conn->conn_post_wait_comp); - init_completion(&conn->conn_wait_comp); - init_completion(&conn->conn_wait_rcfr_comp); - init_completion(&conn->conn_waiting_on_uc_comp); - init_completion(&conn->conn_logout_comp); - init_completion(&conn->rx_half_close_comp); - init_completion(&conn->tx_half_close_comp); - init_completion(&conn->rx_login_comp); - spin_lock_init(&conn->cmd_lock); - spin_lock_init(&conn->conn_usage_lock); - spin_lock_init(&conn->immed_queue_lock); - spin_lock_init(&conn->nopin_timer_lock); - spin_lock_init(&conn->response_queue_lock); - spin_lock_init(&conn->state_lock); - - if (!zalloc_cpumask_var(&conn->conn_cpumask, GFP_KERNEL)) { - pr_err("Unable to allocate conn->conn_cpumask\n"); - goto out_conn_ops; - } conn->conn_login = login; return login; -out_conn_ops: - kfree(conn->conn_ops); -out_rsp_buf: - kfree(login->rsp_buf); out_req_buf: kfree(login->req_buf); out_login: @@ -1147,6 +1112,75 @@ iscsit_conn_set_transport(struct iscsi_conn *conn, struct iscsit_transport *t) return 0; } +static struct iscsi_conn *iscsit_alloc_conn(struct iscsi_np *np) +{ + struct iscsi_conn *conn; + + conn = kzalloc(sizeof(struct iscsi_conn), GFP_KERNEL); + if (!conn) { + pr_err("Could not allocate memory for new connection\n"); + return NULL; + } + pr_debug("Moving to TARG_CONN_STATE_FREE.\n"); + conn->conn_state = TARG_CONN_STATE_FREE; + + init_waitqueue_head(&conn->queues_wq); + INIT_LIST_HEAD(&conn->conn_list); + INIT_LIST_HEAD(&conn->conn_cmd_list); + INIT_LIST_HEAD(&conn->immed_queue_list); + INIT_LIST_HEAD(&conn->response_queue_list); + init_completion(&conn->conn_post_wait_comp); + init_completion(&conn->conn_wait_comp); + init_completion(&conn->conn_wait_rcfr_comp); + init_completion(&conn->conn_waiting_on_uc_comp); + init_completion(&conn->conn_logout_comp); + init_completion(&conn->rx_half_close_comp); + init_completion(&conn->tx_half_close_comp); + init_completion(&conn->rx_login_comp); + spin_lock_init(&conn->cmd_lock); + spin_lock_init(&conn->conn_usage_lock); + spin_lock_init(&conn->immed_queue_lock); + spin_lock_init(&conn->nopin_timer_lock); + spin_lock_init(&conn->response_queue_lock); + spin_lock_init(&conn->state_lock); + + timer_setup(&conn->nopin_response_timer, + iscsit_handle_nopin_response_timeout, 0); + timer_setup(&conn->nopin_timer, iscsit_handle_nopin_timeout, 0); + + if (iscsit_conn_set_transport(conn, np->np_transport) < 0) + goto free_conn; + + conn->conn_ops = kzalloc(sizeof(struct iscsi_conn_ops), GFP_KERNEL); + if (!conn->conn_ops) { + pr_err("Unable to allocate memory for struct iscsi_conn_ops.\n"); + goto put_transport; + } + + if (!zalloc_cpumask_var(&conn->conn_cpumask, GFP_KERNEL)) { + pr_err("Unable to allocate conn->conn_cpumask\n"); + goto free_mask; + } + + return conn; + +free_mask: + free_cpumask_var(conn->conn_cpumask); +put_transport: + iscsit_put_transport(conn->conn_transport); +free_conn: + kfree(conn); + return NULL; +} + +void iscsit_free_conn(struct iscsi_conn *conn) +{ + free_cpumask_var(conn->conn_cpumask); + kfree(conn->conn_ops); + iscsit_put_transport(conn->conn_transport); + kfree(conn); +} + void iscsi_target_login_sess_out(struct iscsi_conn *conn, struct iscsi_np *np, bool zero_tsih, bool new_sess) { @@ -1196,10 +1230,6 @@ old_sess_out: crypto_free_ahash(tfm); } - free_cpumask_var(conn->conn_cpumask); - - kfree(conn->conn_ops); - if (conn->param_list) { iscsi_release_param_list(conn->param_list); conn->param_list = NULL; @@ -1217,8 +1247,7 @@ old_sess_out: if (conn->conn_transport->iscsit_free_conn) conn->conn_transport->iscsit_free_conn(conn); - iscsit_put_transport(conn->conn_transport); - kfree(conn); + iscsit_free_conn(conn); } static int __iscsi_target_login_thread(struct iscsi_np *np) @@ -1248,31 +1277,16 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) } spin_unlock_bh(&np->np_thread_lock); - conn = kzalloc(sizeof(struct iscsi_conn), GFP_KERNEL); + conn = iscsit_alloc_conn(np); if (!conn) { - pr_err("Could not allocate memory for" - " new connection\n"); /* Get another socket */ return 1; } - pr_debug("Moving to TARG_CONN_STATE_FREE.\n"); - conn->conn_state = TARG_CONN_STATE_FREE; - - timer_setup(&conn->nopin_response_timer, - iscsit_handle_nopin_response_timeout, 0); - timer_setup(&conn->nopin_timer, iscsit_handle_nopin_timeout, 0); - - if (iscsit_conn_set_transport(conn, np->np_transport) < 0) { - kfree(conn); - return 1; - } rc = np->np_transport->iscsit_accept_np(np, conn); if (rc == -ENOSYS) { complete(&np->np_restart_comp); - iscsit_put_transport(conn->conn_transport); - kfree(conn); - conn = NULL; + iscsit_free_conn(conn); goto exit; } else if (rc < 0) { spin_lock_bh(&np->np_thread_lock); @@ -1280,17 +1294,13 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) np->np_thread_state = ISCSI_NP_THREAD_ACTIVE; spin_unlock_bh(&np->np_thread_lock); complete(&np->np_restart_comp); - iscsit_put_transport(conn->conn_transport); - kfree(conn); - conn = NULL; + iscsit_free_conn(conn); /* Get another socket */ return 1; } spin_unlock_bh(&np->np_thread_lock); - iscsit_put_transport(conn->conn_transport); - kfree(conn); - conn = NULL; - goto out; + iscsit_free_conn(conn); + return 1; } /* * Perform the remaining iSCSI connection initialization items.. @@ -1440,7 +1450,6 @@ old_sess_out: tpg_np = NULL; } -out: return 1; exit: diff --git a/drivers/target/iscsi/iscsi_target_login.h b/drivers/target/iscsi/iscsi_target_login.h index 74ac3abc44a0..3b8e3639ff5d 100644 --- a/drivers/target/iscsi/iscsi_target_login.h +++ b/drivers/target/iscsi/iscsi_target_login.h @@ -19,7 +19,7 @@ extern int iscsi_target_setup_login_socket(struct iscsi_np *, extern int iscsit_accept_np(struct iscsi_np *, struct iscsi_conn *); extern int iscsit_get_login_rx(struct iscsi_conn *, struct iscsi_login *); extern int iscsit_put_login_tx(struct iscsi_conn *, struct iscsi_login *, u32); -extern void iscsit_free_conn(struct iscsi_np *, struct iscsi_conn *); +extern void iscsit_free_conn(struct iscsi_conn *); extern int iscsit_start_kthreads(struct iscsi_conn *); extern void iscsi_post_login_handler(struct iscsi_np *, struct iscsi_conn *, u8); extern void iscsi_target_login_sess_out(struct iscsi_conn *, struct iscsi_np *, From c77a2fa3ff8f73d1a485e67e6f81c64823739d59 Mon Sep 17 00:00:00 2001 From: Nilesh Javali Date: Wed, 29 Aug 2018 23:55:53 -0700 Subject: [PATCH 0366/1762] scsi: qedi: Add the CRC size within iSCSI NVM image The QED driver commit, 1ac4329a1cff ("qed: Add configuration information to register dump and debug data"), removes the CRC length validation causing nvm_get_image failure while loading qedi driver: [qed_mcp_get_nvm_image:2700(host_10-0)]Image [0] is too big - 00006008 bytes where only 00006004 are available [qedi_get_boot_info:2253]:10: Could not get NVM image. ret = -12 Hence add and adjust the CRC size to iSCSI NVM image to read boot info at qedi load time. Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi.h | 7 ++++++- drivers/scsi/qedi/qedi_main.c | 28 +++++++++++++++------------- 2 files changed, 21 insertions(+), 14 deletions(-) diff --git a/drivers/scsi/qedi/qedi.h b/drivers/scsi/qedi/qedi.h index fc3babc15fa3..a6f96b35e971 100644 --- a/drivers/scsi/qedi/qedi.h +++ b/drivers/scsi/qedi/qedi.h @@ -77,6 +77,11 @@ enum qedi_nvm_tgts { QEDI_NVM_TGT_SEC, }; +struct qedi_nvm_iscsi_image { + struct nvm_iscsi_cfg iscsi_cfg; + u32 crc; +}; + struct qedi_uio_ctrl { /* meta data */ u32 uio_hsi_version; @@ -294,7 +299,7 @@ struct qedi_ctx { void *bdq_pbl_list; dma_addr_t bdq_pbl_list_dma; u8 bdq_pbl_list_num_entries; - struct nvm_iscsi_cfg *iscsi_cfg; + struct qedi_nvm_iscsi_image *iscsi_image; dma_addr_t nvm_buf_dma; void __iomem *bdq_primary_prod; void __iomem *bdq_secondary_prod; diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index aa96bccb5a96..cc8e64dc65ad 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -1346,23 +1346,26 @@ exit_setup_int: static void qedi_free_nvm_iscsi_cfg(struct qedi_ctx *qedi) { - if (qedi->iscsi_cfg) + if (qedi->iscsi_image) dma_free_coherent(&qedi->pdev->dev, - sizeof(struct nvm_iscsi_cfg), - qedi->iscsi_cfg, qedi->nvm_buf_dma); + sizeof(struct qedi_nvm_iscsi_image), + qedi->iscsi_image, qedi->nvm_buf_dma); } static int qedi_alloc_nvm_iscsi_cfg(struct qedi_ctx *qedi) { - qedi->iscsi_cfg = dma_zalloc_coherent(&qedi->pdev->dev, - sizeof(struct nvm_iscsi_cfg), - &qedi->nvm_buf_dma, GFP_KERNEL); - if (!qedi->iscsi_cfg) { + struct qedi_nvm_iscsi_image nvm_image; + + qedi->iscsi_image = dma_zalloc_coherent(&qedi->pdev->dev, + sizeof(nvm_image), + &qedi->nvm_buf_dma, + GFP_KERNEL); + if (!qedi->iscsi_image) { QEDI_ERR(&qedi->dbg_ctx, "Could not allocate NVM BUF.\n"); return -ENOMEM; } QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, - "NVM BUF addr=0x%p dma=0x%llx.\n", qedi->iscsi_cfg, + "NVM BUF addr=0x%p dma=0x%llx.\n", qedi->iscsi_image, qedi->nvm_buf_dma); return 0; @@ -1905,7 +1908,7 @@ qedi_get_nvram_block(struct qedi_ctx *qedi) struct nvm_iscsi_block *block; pf = qedi->dev_info.common.abs_pf_id; - block = &qedi->iscsi_cfg->block[0]; + block = &qedi->iscsi_image->iscsi_cfg.block[0]; for (i = 0; i < NUM_OF_ISCSI_PF_SUPPORTED; i++, block++) { flags = ((block->id) & NVM_ISCSI_CFG_BLK_CTRL_FLAG_MASK) >> NVM_ISCSI_CFG_BLK_CTRL_FLAG_OFFSET; @@ -2194,15 +2197,14 @@ static void qedi_boot_release(void *data) static int qedi_get_boot_info(struct qedi_ctx *qedi) { int ret = 1; - u16 len; - - len = sizeof(struct nvm_iscsi_cfg); + struct qedi_nvm_iscsi_image nvm_image; QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, "Get NVM iSCSI CFG image\n"); ret = qedi_ops->common->nvm_get_image(qedi->cdev, QED_NVM_IMAGE_ISCSI_CFG, - (char *)qedi->iscsi_cfg, len); + (char *)qedi->iscsi_image, + sizeof(nvm_image)); if (ret) QEDI_ERR(&qedi->dbg_ctx, "Could not get NVM image. ret = %d\n", ret); From 755a8bf5579d22eb5636685c516d8dede799e27b Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Fri, 24 Aug 2018 15:08:30 +0100 Subject: [PATCH 0367/1762] arm/arm64: smccc-1.1: Handle function result as parameters If someone has the silly idea to write something along those lines: extern u64 foo(void); void bar(struct arm_smccc_res *res) { arm_smccc_1_1_smc(0xbad, foo(), res); } they are in for a surprise, as this gets compiled as: 0000000000000588 : 588: a9be7bfd stp x29, x30, [sp, #-32]! 58c: 910003fd mov x29, sp 590: f9000bf3 str x19, [sp, #16] 594: aa0003f3 mov x19, x0 598: aa1e03e0 mov x0, x30 59c: 94000000 bl 0 <_mcount> 5a0: 94000000 bl 0 5a4: aa0003e1 mov x1, x0 5a8: d4000003 smc #0x0 5ac: b4000073 cbz x19, 5b8 5b0: a9000660 stp x0, x1, [x19] 5b4: a9010e62 stp x2, x3, [x19, #16] 5b8: f9400bf3 ldr x19, [sp, #16] 5bc: a8c27bfd ldp x29, x30, [sp], #32 5c0: d65f03c0 ret 5c4: d503201f nop The call to foo "overwrites" the x0 register for the return value, and we end up calling the wrong secure service. A solution is to evaluate all the parameters before assigning anything to specific registers, leading to the expected result: 0000000000000588 : 588: a9be7bfd stp x29, x30, [sp, #-32]! 58c: 910003fd mov x29, sp 590: f9000bf3 str x19, [sp, #16] 594: aa0003f3 mov x19, x0 598: aa1e03e0 mov x0, x30 59c: 94000000 bl 0 <_mcount> 5a0: 94000000 bl 0 5a4: aa0003e1 mov x1, x0 5a8: d28175a0 mov x0, #0xbad 5ac: d4000003 smc #0x0 5b0: b4000073 cbz x19, 5bc 5b4: a9000660 stp x0, x1, [x19] 5b8: a9010e62 stp x2, x3, [x19, #16] 5bc: f9400bf3 ldr x19, [sp, #16] 5c0: a8c27bfd ldp x29, x30, [sp], #32 5c4: d65f03c0 ret Reported-by: Julien Grall Signed-off-by: Marc Zyngier Signed-off-by: Will Deacon --- include/linux/arm-smccc.h | 30 ++++++++++++++++++++---------- 1 file changed, 20 insertions(+), 10 deletions(-) diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h index 5a91ff33720b..18863d56273c 100644 --- a/include/linux/arm-smccc.h +++ b/include/linux/arm-smccc.h @@ -205,41 +205,51 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1, register unsigned long r3 asm("r3") #define __declare_arg_1(a0, a1, res) \ + typeof(a1) __a1 = a1; \ struct arm_smccc_res *___res = res; \ register unsigned long r0 asm("r0") = (u32)a0; \ - register unsigned long r1 asm("r1") = a1; \ + register unsigned long r1 asm("r1") = __a1; \ register unsigned long r2 asm("r2"); \ register unsigned long r3 asm("r3") #define __declare_arg_2(a0, a1, a2, res) \ + typeof(a1) __a1 = a1; \ + typeof(a2) __a2 = a2; \ struct arm_smccc_res *___res = res; \ register unsigned long r0 asm("r0") = (u32)a0; \ - register unsigned long r1 asm("r1") = a1; \ - register unsigned long r2 asm("r2") = a2; \ + register unsigned long r1 asm("r1") = __a1; \ + register unsigned long r2 asm("r2") = __a2; \ register unsigned long r3 asm("r3") #define __declare_arg_3(a0, a1, a2, a3, res) \ + typeof(a1) __a1 = a1; \ + typeof(a2) __a2 = a2; \ + typeof(a3) __a3 = a3; \ struct arm_smccc_res *___res = res; \ register unsigned long r0 asm("r0") = (u32)a0; \ - register unsigned long r1 asm("r1") = a1; \ - register unsigned long r2 asm("r2") = a2; \ - register unsigned long r3 asm("r3") = a3 + register unsigned long r1 asm("r1") = __a1; \ + register unsigned long r2 asm("r2") = __a2; \ + register unsigned long r3 asm("r3") = __a3 #define __declare_arg_4(a0, a1, a2, a3, a4, res) \ + typeof(a4) __a4 = a4; \ __declare_arg_3(a0, a1, a2, a3, res); \ - register typeof(a4) r4 asm("r4") = a4 + register unsigned long r4 asm("r4") = __a4 #define __declare_arg_5(a0, a1, a2, a3, a4, a5, res) \ + typeof(a5) __a5 = a5; \ __declare_arg_4(a0, a1, a2, a3, a4, res); \ - register typeof(a5) r5 asm("r5") = a5 + register unsigned long r5 asm("r5") = __a5 #define __declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res) \ + typeof(a6) __a6 = a6; \ __declare_arg_5(a0, a1, a2, a3, a4, a5, res); \ - register typeof(a6) r6 asm("r6") = a6 + register unsigned long r6 asm("r6") = __a6 #define __declare_arg_7(a0, a1, a2, a3, a4, a5, a6, a7, res) \ + typeof(a7) __a7 = a7; \ __declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res); \ - register typeof(a7) r7 asm("r7") = a7 + register unsigned long r7 asm("r7") = __a7 #define ___declare_args(count, ...) __declare_arg_ ## count(__VA_ARGS__) #define __declare_args(count, ...) ___declare_args(count, __VA_ARGS__) From b871da4a7778eda2e700ae8bf5f86e74a004c1ec Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Thu, 23 Aug 2018 18:24:24 +0200 Subject: [PATCH 0368/1762] KVM: nVMX: avoid redundant double assignment of nested_run_pending MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit nested_run_pending is set 20 lines above and check_vmentry_prereqs()/ check_vmentry_postreqs() don't seem to be resetting it (the later, however, checks it). Signed-off-by: Vitaly Kuznetsov Reviewed-by: Paolo Bonzini Reviewed-by: Jim Mattson Reviewed-by: Eduardo Valentin Reviewed-by: Krish Sadhukhan Signed-off-by: Radim Krčmář --- arch/x86/kvm/vmx.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 1d26f3c4985b..92f027745842 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -13988,9 +13988,6 @@ static int vmx_set_nested_state(struct kvm_vcpu *vcpu, check_vmentry_postreqs(vcpu, vmcs12, &exit_qual)) return -EINVAL; - if (kvm_state->flags & KVM_STATE_NESTED_RUN_PENDING) - vmx->nested.nested_run_pending = 1; - vmx->nested.dirty_vmcs12 = true; ret = enter_vmx_non_root_mode(vcpu, NULL); if (ret) From 0186ec823280f5db55ab2e6291933bebe2e92772 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Tue, 28 Aug 2018 16:22:28 +0100 Subject: [PATCH 0369/1762] KVM: SVM: remove unused variable dst_vaddr_end MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Variable dst_vaddr_end is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: variable 'dst_vaddr_end' set but not used [-Wunused-but-set-variable] Signed-off-by: Colin Ian King Signed-off-by: Radim Krčmář --- arch/x86/kvm/svm.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 6276140044d0..4339fc4715fa 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -6747,7 +6747,7 @@ e_free: static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec) { unsigned long vaddr, vaddr_end, next_vaddr; - unsigned long dst_vaddr, dst_vaddr_end; + unsigned long dst_vaddr; struct page **src_p, **dst_p; struct kvm_sev_dbg debug; unsigned long n; @@ -6763,7 +6763,6 @@ static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec) size = debug.len; vaddr_end = vaddr + size; dst_vaddr = debug.dst_uaddr; - dst_vaddr_end = dst_vaddr + size; for (; vaddr < vaddr_end; vaddr = next_vaddr) { int len, s_off, d_off; From c4409905cd6eb42cfd06126e9226b0150e05a715 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Thu, 23 Aug 2018 13:56:46 -0700 Subject: [PATCH 0370/1762] KVM: VMX: Do not allow reexecute_instruction() when skipping MMIO instr MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Re-execution after an emulation decode failure is only intended to handle a case where two or vCPUs race to write a shadowed page, i.e. we should never re-execute an instruction as part of MMIO emulation. As handle_ept_misconfig() is only used for MMIO emulation, it should pass EMULTYPE_NO_REEXECUTE when using the emulator to skip an instr in the fast-MMIO case where VM_EXIT_INSTRUCTION_LEN is invalid. And because the cr2 value passed to x86_emulate_instruction() is only destined for use when retrying or reexecuting, we can simply call emulate_instruction(). Fixes: d391f1207067 ("x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO when running nested") Cc: Vitaly Kuznetsov Signed-off-by: Sean Christopherson Cc: stable@vger.kernel.org Signed-off-by: Radim Krčmář --- arch/x86/kvm/vmx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 92f027745842..b345ad91809c 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -7704,8 +7704,8 @@ static int handle_ept_misconfig(struct kvm_vcpu *vcpu) if (!static_cpu_has(X86_FEATURE_HYPERVISOR)) return kvm_skip_emulated_instruction(vcpu); else - return x86_emulate_instruction(vcpu, gpa, EMULTYPE_SKIP, - NULL, 0) == EMULATE_DONE; + return emulate_instruction(vcpu, EMULTYPE_SKIP) == + EMULATE_DONE; } return kvm_mmu_page_fault(vcpu, gpa, PFERR_RSVD_MASK, NULL, 0); From 35be0aded76b54a24dc8aa678a71bca22273e8d8 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Thu, 23 Aug 2018 13:56:47 -0700 Subject: [PATCH 0371/1762] KVM: x86: SVM: Set EMULTYPE_NO_REEXECUTE for RSM emulation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Re-execution after an emulation decode failure is only intended to handle a case where two or vCPUs race to write a shadowed page, i.e. we should never re-execute an instruction as part of RSM emulation. Add a new helper, kvm_emulate_instruction_from_buffer(), to support emulating from a pre-defined buffer. This eliminates the last direct call to x86_emulate_instruction() outside of kvm_mmu_page_fault(), which means x86_emulate_instruction() can be unexported in a future patch. Fixes: 7607b7174405 ("KVM: SVM: install RSM intercept") Cc: Brijesh Singh Signed-off-by: Sean Christopherson Cc: stable@vger.kernel.org Signed-off-by: Radim Krčmář --- arch/x86/include/asm/kvm_host.h | 7 +++++++ arch/x86/kvm/svm.c | 4 ++-- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 00ddb0c9e612..3b220b86c8e4 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1251,6 +1251,13 @@ static inline int emulate_instruction(struct kvm_vcpu *vcpu, emulation_type | EMULTYPE_NO_REEXECUTE, NULL, 0); } +static inline int kvm_emulate_instruction_from_buffer(struct kvm_vcpu *vcpu, + void *insn, int insn_len) +{ + return x86_emulate_instruction(vcpu, 0, EMULTYPE_NO_REEXECUTE, + insn, insn_len); +} + void kvm_enable_efer_bits(u64); bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer); int kvm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 4339fc4715fa..b3cdfde8ff5e 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3874,8 +3874,8 @@ static int emulate_on_interception(struct vcpu_svm *svm) static int rsm_interception(struct vcpu_svm *svm) { - return x86_emulate_instruction(&svm->vcpu, 0, 0, - rsm_ins_bytes, 2) == EMULATE_DONE; + return kvm_emulate_instruction_from_buffer(&svm->vcpu, + rsm_ins_bytes, 2) == EMULATE_DONE; } static int rdpmc_interception(struct vcpu_svm *svm) From 8065dbd1ee0ef04321d80da7999b4f0086e0a407 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Thu, 23 Aug 2018 13:56:48 -0700 Subject: [PATCH 0372/1762] KVM: x86: Invert emulation re-execute behavior to make it opt-in MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Re-execution of an instruction after emulation decode failure is intended to be used only when emulating shadow page accesses. Invert the flag to make allowing re-execution opt-in since that behavior is by far in the minority. Signed-off-by: Sean Christopherson Cc: stable@vger.kernel.org Signed-off-by: Radim Krčmář --- arch/x86/include/asm/kvm_host.h | 8 +++----- arch/x86/kvm/mmu.c | 2 +- arch/x86/kvm/x86.c | 2 +- 3 files changed, 5 insertions(+), 7 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 3b220b86c8e4..a69ea11f3bab 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1238,7 +1238,7 @@ enum emulation_result { #define EMULTYPE_TRAP_UD (1 << 1) #define EMULTYPE_SKIP (1 << 2) #define EMULTYPE_RETRY (1 << 3) -#define EMULTYPE_NO_REEXECUTE (1 << 4) +#define EMULTYPE_ALLOW_REEXECUTE (1 << 4) #define EMULTYPE_NO_UD_ON_FAIL (1 << 5) #define EMULTYPE_VMWARE (1 << 6) int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2, @@ -1247,15 +1247,13 @@ int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2, static inline int emulate_instruction(struct kvm_vcpu *vcpu, int emulation_type) { - return x86_emulate_instruction(vcpu, 0, - emulation_type | EMULTYPE_NO_REEXECUTE, NULL, 0); + return x86_emulate_instruction(vcpu, 0, emulation_type, NULL, 0); } static inline int kvm_emulate_instruction_from_buffer(struct kvm_vcpu *vcpu, void *insn, int insn_len) { - return x86_emulate_instruction(vcpu, 0, EMULTYPE_NO_REEXECUTE, - insn, insn_len); + return x86_emulate_instruction(vcpu, 0, 0, insn, insn_len); } void kvm_enable_efer_bits(u64); diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index a282321329b5..4508c34eef20 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -5217,7 +5217,7 @@ static int make_mmu_pages_available(struct kvm_vcpu *vcpu) int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code, void *insn, int insn_len) { - int r, emulation_type = EMULTYPE_RETRY; + int r, emulation_type = EMULTYPE_RETRY | EMULTYPE_ALLOW_REEXECUTE; enum emulation_result er; bool direct = vcpu->arch.mmu.direct_map; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 506bd2b4b8bb..d6f85ea23101 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5870,7 +5870,7 @@ static bool reexecute_instruction(struct kvm_vcpu *vcpu, gva_t cr2, gpa_t gpa = cr2; kvm_pfn_t pfn; - if (emulation_type & EMULTYPE_NO_REEXECUTE) + if (!(emulation_type & EMULTYPE_ALLOW_REEXECUTE)) return false; if (!vcpu->arch.mmu.direct_map) { From 384bf2218e96f57118270945b1841e4dbbe9e352 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Thu, 23 Aug 2018 13:56:49 -0700 Subject: [PATCH 0373/1762] KVM: x86: Merge EMULTYPE_RETRY and EMULTYPE_ALLOW_REEXECUTE MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit retry_instruction() and reexecute_instruction() are a package deal, i.e. there is no scenario where one is allowed and the other is not. Merge their controlling emulation type flags to enforce this in code. Name the combined flag EMULTYPE_ALLOW_RETRY to make it abundantly clear that we are allowing re{try,execute} to occur, as opposed to explicitly requesting retry of a previously failed instruction. Signed-off-by: Sean Christopherson Cc: stable@vger.kernel.org Signed-off-by: Radim Krčmář --- arch/x86/include/asm/kvm_host.h | 7 +++---- arch/x86/kvm/mmu.c | 2 +- arch/x86/kvm/x86.c | 4 ++-- 3 files changed, 6 insertions(+), 7 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index a69ea11f3bab..35e03b13edcb 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1237,10 +1237,9 @@ enum emulation_result { #define EMULTYPE_NO_DECODE (1 << 0) #define EMULTYPE_TRAP_UD (1 << 1) #define EMULTYPE_SKIP (1 << 2) -#define EMULTYPE_RETRY (1 << 3) -#define EMULTYPE_ALLOW_REEXECUTE (1 << 4) -#define EMULTYPE_NO_UD_ON_FAIL (1 << 5) -#define EMULTYPE_VMWARE (1 << 6) +#define EMULTYPE_ALLOW_RETRY (1 << 3) +#define EMULTYPE_NO_UD_ON_FAIL (1 << 4) +#define EMULTYPE_VMWARE (1 << 5) int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2, int emulation_type, void *insn, int insn_len); diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 4508c34eef20..0246a1ea7f55 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -5217,7 +5217,7 @@ static int make_mmu_pages_available(struct kvm_vcpu *vcpu) int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code, void *insn, int insn_len) { - int r, emulation_type = EMULTYPE_RETRY | EMULTYPE_ALLOW_REEXECUTE; + int r, emulation_type = EMULTYPE_ALLOW_RETRY; enum emulation_result er; bool direct = vcpu->arch.mmu.direct_map; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index d6f85ea23101..924ce28723c4 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5870,7 +5870,7 @@ static bool reexecute_instruction(struct kvm_vcpu *vcpu, gva_t cr2, gpa_t gpa = cr2; kvm_pfn_t pfn; - if (!(emulation_type & EMULTYPE_ALLOW_REEXECUTE)) + if (!(emulation_type & EMULTYPE_ALLOW_RETRY)) return false; if (!vcpu->arch.mmu.direct_map) { @@ -5958,7 +5958,7 @@ static bool retry_instruction(struct x86_emulate_ctxt *ctxt, */ vcpu->arch.last_retry_eip = vcpu->arch.last_retry_addr = 0; - if (!(emulation_type & EMULTYPE_RETRY)) + if (!(emulation_type & EMULTYPE_ALLOW_RETRY)) return false; if (x86_page_table_writing_insn(ctxt)) From 472faffacd9032164f611f56329d0025ddca55b5 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Thu, 23 Aug 2018 13:56:50 -0700 Subject: [PATCH 0374/1762] KVM: x86: Default to not allowing emulation retry in kvm_mmu_page_fault MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Effectively force kvm_mmu_page_fault() to opt-in to allowing retry to make it more obvious when and why it allows emulation to be retried. Previously this approach was less convenient due to retry and re-execute behavior being controlled by separate flags that were also inverted in their implementations (opt-in versus opt-out). Suggested-by: Paolo Bonzini Signed-off-by: Sean Christopherson Cc: stable@vger.kernel.org Signed-off-by: Radim Krčmář --- arch/x86/kvm/mmu.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 0246a1ea7f55..01fb8701ccd0 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -5217,7 +5217,7 @@ static int make_mmu_pages_available(struct kvm_vcpu *vcpu) int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code, void *insn, int insn_len) { - int r, emulation_type = EMULTYPE_ALLOW_RETRY; + int r, emulation_type = 0; enum emulation_result er; bool direct = vcpu->arch.mmu.direct_map; @@ -5230,10 +5230,8 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code, r = RET_PF_INVALID; if (unlikely(error_code & PFERR_RSVD_MASK)) { r = handle_mmio_page_fault(vcpu, cr2, direct); - if (r == RET_PF_EMULATE) { - emulation_type = 0; + if (r == RET_PF_EMULATE) goto emulate; - } } if (r == RET_PF_INVALID) { @@ -5260,8 +5258,16 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code, return 1; } - if (mmio_info_in_cache(vcpu, cr2, direct)) - emulation_type = 0; + /* + * vcpu->arch.mmu.page_fault returned RET_PF_EMULATE, but we can still + * optimistically try to just unprotect the page and let the processor + * re-execute the instruction that caused the page fault. Do not allow + * retrying MMIO emulation, as it's not only pointless but could also + * cause us to enter an infinite loop because the processor will keep + * faulting on the non-existent MMIO address. + */ + if (!mmio_info_in_cache(vcpu, cr2, direct)) + emulation_type = EMULTYPE_ALLOW_RETRY; emulate: /* * On AMD platforms, under certain conditions insn_len may be zero on #NPF. From 6c3dfeb6a48b1562bd5b8ec5f3317ef34d0134ef Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Thu, 23 Aug 2018 13:56:51 -0700 Subject: [PATCH 0375/1762] KVM: x86: Do not re-{try,execute} after failed emulation in L2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit a6f177efaa58 ("KVM: Reenter guest after emulation failure if due to access to non-mmio address") added reexecute_instruction() to handle the scenario where two (or more) vCPUS race to write a shadowed page, i.e. reexecute_instruction() is intended to return true if and only if the instruction being emulated was accessing a shadowed page. As L0 is only explicitly shadowing L1 tables, an emulation failure of a nested VM instruction cannot be due to a race to write a shadowed page and so should never be re-executed. This fixes an issue where an "MMIO" emulation failure[1] in L2 is all but guaranteed to result in an infinite loop when TDP is enabled. Because "cr2" is actually an L2 GPA when TDP is enabled, calling kvm_mmu_gva_to_gpa_write() to translate cr2 in the non-direct mapped case (L2 is never direct mapped) will almost always yield UNMAPPED_GVA and cause reexecute_instruction() to immediately return true. The !mmio_info_in_cache() check in kvm_mmu_page_fault() doesn't catch this case because mmio_info_in_cache() returns false for a nested MMU (the MMIO caching currently handles L1 only, e.g. to cache nested guests' GPAs we'd have to manually flush the cache when switching between VMs and when L1 updated its page tables controlling the nested guest). Way back when, commit 68be0803456b ("KVM: x86: never re-execute instruction with enabled tdp") changed reexecute_instruction() to always return false when using TDP under the assumption that KVM would only get into the emulator for MMIO. Commit 95b3cf69bdf8 ("KVM: x86: let reexecute_instruction work for tdp") effectively reverted that behavior in order to handle the scenario where emulation failed due to an access from L1 to the shadow page tables for L2, but it didn't account for the case where emulation failed in L2 with TDP enabled. All of the above logic also applies to retry_instruction(), added by commit 1cb3f3ae5a38 ("KVM: x86: retry non-page-table writing instructions"). An indefinite loop in retry_instruction() should be impossible as it protects against retrying the same instruction over and over, but it's still correct to not retry an L2 instruction in the first place. Fix the immediate issue by adding a check for a nested guest when determining whether or not to allow retry in kvm_mmu_page_fault(). In addition to fixing the immediate bug, add WARN_ON_ONCE in the retry functions since they are not designed to handle nested cases, i.e. they need to be modified even if there is some scenario in the future where we want to allow retrying a nested guest. [1] This issue was encountered after commit 3a2936dedd20 ("kvm: mmu: Don't expose private memslots to L2") changed the page fault path to return KVM_PFN_NOSLOT when translating an L2 access to a prive memslot. Returning KVM_PFN_NOSLOT is semantically correct when we want to hide a memslot from L2, i.e. there effectively is no defined memory region for L2, but it has the unfortunate side effect of making KVM think the GFN is a MMIO page, thus triggering emulation. The failure occurred with in-development code that deliberately exposed a private memslot to L2, which L2 accessed with an instruction that is not emulated by KVM. Fixes: 95b3cf69bdf8 ("KVM: x86: let reexecute_instruction work for tdp") Fixes: 1cb3f3ae5a38 ("KVM: x86: retry non-page-table writing instructions") Signed-off-by: Sean Christopherson Cc: Jim Mattson Cc: Krish Sadhukhan Cc: Xiao Guangrong Cc: stable@vger.kernel.org Signed-off-by: Radim Krčmář --- arch/x86/kvm/mmu.c | 7 +++++-- arch/x86/kvm/x86.c | 6 ++++++ 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 01fb8701ccd0..f7e83b1e0eb2 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -5264,9 +5264,12 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code, * re-execute the instruction that caused the page fault. Do not allow * retrying MMIO emulation, as it's not only pointless but could also * cause us to enter an infinite loop because the processor will keep - * faulting on the non-existent MMIO address. + * faulting on the non-existent MMIO address. Retrying an instruction + * from a nested guest is also pointless and dangerous as we are only + * explicitly shadowing L1's page tables, i.e. unprotecting something + * for L1 isn't going to magically fix whatever issue cause L2 to fail. */ - if (!mmio_info_in_cache(vcpu, cr2, direct)) + if (!mmio_info_in_cache(vcpu, cr2, direct) && !is_guest_mode(vcpu)) emulation_type = EMULTYPE_ALLOW_RETRY; emulate: /* diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 924ce28723c4..cbe2921e972b 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5873,6 +5873,9 @@ static bool reexecute_instruction(struct kvm_vcpu *vcpu, gva_t cr2, if (!(emulation_type & EMULTYPE_ALLOW_RETRY)) return false; + if (WARN_ON_ONCE(is_guest_mode(vcpu))) + return false; + if (!vcpu->arch.mmu.direct_map) { /* * Write permission should be allowed since only @@ -5961,6 +5964,9 @@ static bool retry_instruction(struct x86_emulate_ctxt *ctxt, if (!(emulation_type & EMULTYPE_ALLOW_RETRY)) return false; + if (WARN_ON_ONCE(is_guest_mode(vcpu))) + return false; + if (x86_page_table_writing_insn(ctxt)) return false; From 0ce97a2b627c5e26347aee298f571ddf925e5fe4 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Thu, 23 Aug 2018 13:56:52 -0700 Subject: [PATCH 0376/1762] KVM: x86: Rename emulate_instruction() to kvm_emulate_instruction() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Lack of the kvm_ prefix gives the impression that it's a VMX or SVM specific function, and there's no conflict that prevents adding the kvm_ prefix. Signed-off-by: Sean Christopherson Signed-off-by: Radim Krčmář --- arch/x86/include/asm/kvm_host.h | 2 +- arch/x86/kvm/svm.c | 12 ++++++------ arch/x86/kvm/vmx.c | 16 ++++++++-------- arch/x86/kvm/x86.c | 4 ++-- 4 files changed, 17 insertions(+), 17 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 35e03b13edcb..8c9023661351 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1243,7 +1243,7 @@ enum emulation_result { int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2, int emulation_type, void *insn, int insn_len); -static inline int emulate_instruction(struct kvm_vcpu *vcpu, +static inline int kvm_emulate_instruction(struct kvm_vcpu *vcpu, int emulation_type) { return x86_emulate_instruction(vcpu, 0, emulation_type, NULL, 0); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index b3cdfde8ff5e..89c4c5aa15f1 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -776,7 +776,7 @@ static void skip_emulated_instruction(struct kvm_vcpu *vcpu) } if (!svm->next_rip) { - if (emulate_instruction(vcpu, EMULTYPE_SKIP) != + if (kvm_emulate_instruction(vcpu, EMULTYPE_SKIP) != EMULATE_DONE) printk(KERN_DEBUG "%s: NOP\n", __func__); return; @@ -2715,7 +2715,7 @@ static int gp_interception(struct vcpu_svm *svm) WARN_ON_ONCE(!enable_vmware_backdoor); - er = emulate_instruction(vcpu, + er = kvm_emulate_instruction(vcpu, EMULTYPE_VMWARE | EMULTYPE_NO_UD_ON_FAIL); if (er == EMULATE_USER_EXIT) return 0; @@ -2819,7 +2819,7 @@ static int io_interception(struct vcpu_svm *svm) string = (io_info & SVM_IOIO_STR_MASK) != 0; in = (io_info & SVM_IOIO_TYPE_MASK) != 0; if (string) - return emulate_instruction(vcpu, 0) == EMULATE_DONE; + return kvm_emulate_instruction(vcpu, 0) == EMULATE_DONE; port = io_info >> 16; size = (io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT; @@ -3861,7 +3861,7 @@ static int iret_interception(struct vcpu_svm *svm) static int invlpg_interception(struct vcpu_svm *svm) { if (!static_cpu_has(X86_FEATURE_DECODEASSISTS)) - return emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE; + return kvm_emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE; kvm_mmu_invlpg(&svm->vcpu, svm->vmcb->control.exit_info_1); return kvm_skip_emulated_instruction(&svm->vcpu); @@ -3869,7 +3869,7 @@ static int invlpg_interception(struct vcpu_svm *svm) static int emulate_on_interception(struct vcpu_svm *svm) { - return emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE; + return kvm_emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE; } static int rsm_interception(struct vcpu_svm *svm) @@ -4700,7 +4700,7 @@ static int avic_unaccelerated_access_interception(struct vcpu_svm *svm) ret = avic_unaccel_trap_write(svm); } else { /* Handling Fault */ - ret = (emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE); + ret = (kvm_emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE); } return ret; diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index b345ad91809c..f910d33858d9 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -6983,7 +6983,7 @@ static int handle_rmode_exception(struct kvm_vcpu *vcpu, * Cause the #SS fault with 0 error code in VM86 mode. */ if (((vec == GP_VECTOR) || (vec == SS_VECTOR)) && err_code == 0) { - if (emulate_instruction(vcpu, 0) == EMULATE_DONE) { + if (kvm_emulate_instruction(vcpu, 0) == EMULATE_DONE) { if (vcpu->arch.halt_request) { vcpu->arch.halt_request = 0; return kvm_vcpu_halt(vcpu); @@ -7054,7 +7054,7 @@ static int handle_exception(struct kvm_vcpu *vcpu) if (!vmx->rmode.vm86_active && is_gp_fault(intr_info)) { WARN_ON_ONCE(!enable_vmware_backdoor); - er = emulate_instruction(vcpu, + er = kvm_emulate_instruction(vcpu, EMULTYPE_VMWARE | EMULTYPE_NO_UD_ON_FAIL); if (er == EMULATE_USER_EXIT) return 0; @@ -7157,7 +7157,7 @@ static int handle_io(struct kvm_vcpu *vcpu) ++vcpu->stat.io_exits; if (string) - return emulate_instruction(vcpu, 0) == EMULATE_DONE; + return kvm_emulate_instruction(vcpu, 0) == EMULATE_DONE; port = exit_qualification >> 16; size = (exit_qualification & 7) + 1; @@ -7231,7 +7231,7 @@ static int handle_set_cr4(struct kvm_vcpu *vcpu, unsigned long val) static int handle_desc(struct kvm_vcpu *vcpu) { WARN_ON(!(vcpu->arch.cr4 & X86_CR4_UMIP)); - return emulate_instruction(vcpu, 0) == EMULATE_DONE; + return kvm_emulate_instruction(vcpu, 0) == EMULATE_DONE; } static int handle_cr(struct kvm_vcpu *vcpu) @@ -7480,7 +7480,7 @@ static int handle_vmcall(struct kvm_vcpu *vcpu) static int handle_invd(struct kvm_vcpu *vcpu) { - return emulate_instruction(vcpu, 0) == EMULATE_DONE; + return kvm_emulate_instruction(vcpu, 0) == EMULATE_DONE; } static int handle_invlpg(struct kvm_vcpu *vcpu) @@ -7547,7 +7547,7 @@ static int handle_apic_access(struct kvm_vcpu *vcpu) return kvm_skip_emulated_instruction(vcpu); } } - return emulate_instruction(vcpu, 0) == EMULATE_DONE; + return kvm_emulate_instruction(vcpu, 0) == EMULATE_DONE; } static int handle_apic_eoi_induced(struct kvm_vcpu *vcpu) @@ -7704,7 +7704,7 @@ static int handle_ept_misconfig(struct kvm_vcpu *vcpu) if (!static_cpu_has(X86_FEATURE_HYPERVISOR)) return kvm_skip_emulated_instruction(vcpu); else - return emulate_instruction(vcpu, EMULTYPE_SKIP) == + return kvm_emulate_instruction(vcpu, EMULTYPE_SKIP) == EMULATE_DONE; } @@ -7748,7 +7748,7 @@ static int handle_invalid_guest_state(struct kvm_vcpu *vcpu) if (kvm_test_request(KVM_REQ_EVENT, vcpu)) return 1; - err = emulate_instruction(vcpu, 0); + err = kvm_emulate_instruction(vcpu, 0); if (err == EMULATE_USER_EXIT) { ++vcpu->stat.mmio_exits; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index cbe2921e972b..915002c7f07e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4987,7 +4987,7 @@ int handle_ud(struct kvm_vcpu *vcpu) emul_type = 0; } - er = emulate_instruction(vcpu, emul_type); + er = kvm_emulate_instruction(vcpu, emul_type); if (er == EMULATE_USER_EXIT) return 0; if (er != EMULATE_DONE) @@ -7740,7 +7740,7 @@ static inline int complete_emulated_io(struct kvm_vcpu *vcpu) { int r; vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu); - r = emulate_instruction(vcpu, EMULTYPE_NO_DECODE); + r = kvm_emulate_instruction(vcpu, EMULTYPE_NO_DECODE); srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx); if (r != EMULATE_DONE) return 0; From c60658d1d983641fcdbb16f86bc2f3806d88bab4 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Thu, 23 Aug 2018 13:56:53 -0700 Subject: [PATCH 0377/1762] KVM: x86: Unexport x86_emulate_instruction() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Allowing x86_emulate_instruction() to be called directly has led to subtle bugs being introduced, e.g. not setting EMULTYPE_NO_REEXECUTE in the emulation type. While most of the blame lies on re-execute being opt-out, exporting x86_emulate_instruction() also exposes its cr2 parameter, which may have contributed to commit d391f1207067 ("x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO when running nested") using x86_emulate_instruction() instead of emulate_instruction() because "hey, I have a cr2!", which in turn introduced its EMULTYPE_NO_REEXECUTE bug. Signed-off-by: Sean Christopherson Signed-off-by: Radim Krčmář --- arch/x86/include/asm/kvm_host.h | 17 +++-------------- arch/x86/kvm/x86.c | 14 +++++++++++++- arch/x86/kvm/x86.h | 2 ++ 3 files changed, 18 insertions(+), 15 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 8c9023661351..e12916e7c2fb 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1240,20 +1240,9 @@ enum emulation_result { #define EMULTYPE_ALLOW_RETRY (1 << 3) #define EMULTYPE_NO_UD_ON_FAIL (1 << 4) #define EMULTYPE_VMWARE (1 << 5) -int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2, - int emulation_type, void *insn, int insn_len); - -static inline int kvm_emulate_instruction(struct kvm_vcpu *vcpu, - int emulation_type) -{ - return x86_emulate_instruction(vcpu, 0, emulation_type, NULL, 0); -} - -static inline int kvm_emulate_instruction_from_buffer(struct kvm_vcpu *vcpu, - void *insn, int insn_len) -{ - return x86_emulate_instruction(vcpu, 0, 0, insn, insn_len); -} +int kvm_emulate_instruction(struct kvm_vcpu *vcpu, int emulation_type); +int kvm_emulate_instruction_from_buffer(struct kvm_vcpu *vcpu, + void *insn, int insn_len); void kvm_enable_efer_bits(u64); bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 915002c7f07e..542f6315444d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6282,7 +6282,19 @@ restart: return r; } -EXPORT_SYMBOL_GPL(x86_emulate_instruction); + +int kvm_emulate_instruction(struct kvm_vcpu *vcpu, int emulation_type) +{ + return x86_emulate_instruction(vcpu, 0, emulation_type, NULL, 0); +} +EXPORT_SYMBOL_GPL(kvm_emulate_instruction); + +int kvm_emulate_instruction_from_buffer(struct kvm_vcpu *vcpu, + void *insn, int insn_len) +{ + return x86_emulate_instruction(vcpu, 0, 0, insn, insn_len); +} +EXPORT_SYMBOL_GPL(kvm_emulate_instruction_from_buffer); static int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port) diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index 257f27620bc2..67b9568613f3 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -274,6 +274,8 @@ int kvm_mtrr_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata); bool kvm_mtrr_check_gfn_range_consistency(struct kvm_vcpu *vcpu, gfn_t gfn, int page_num); bool kvm_vector_hashing_enabled(void); +int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2, + int emulation_type, void *insn, int insn_len); #define KVM_SUPPORTED_XCR0 (XFEATURE_MASK_FP | XFEATURE_MASK_SSE \ | XFEATURE_MASK_YMM | XFEATURE_MASK_BNDREGS \ From 80d34810815b1d708e3e59901a2afcdbd90c2a6f Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Mon, 27 Aug 2018 15:55:59 +0300 Subject: [PATCH 0378/1762] ovl: respect FIEMAP_FLAG_SYNC flag Stacked overlayfs fiemap operation broke xfstests that test delayed allocation (with "_test_generic_punch -d"), because ovl_fiemap() failed to write dirty pages when requested. Fixes: 9e142c4102db ("ovl: add ovl_fiemap()") Signed-off-by: Amir Goldstein Signed-off-by: Miklos Szeredi --- fs/overlayfs/inode.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index e0bb217c01e2..5014749fd4b4 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -467,6 +467,10 @@ static int ovl_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, return -EOPNOTSUPP; old_cred = ovl_override_creds(inode->i_sb); + + if (fieinfo->fi_flags & FIEMAP_FLAG_SYNC) + filemap_write_and_wait(realinode->i_mapping); + err = realinode->i_op->fiemap(realinode, fieinfo, start, len); revert_creds(old_cred); From 5b910bd615ba947383e63cd1ed106ffa3060159e Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Mon, 27 Aug 2018 15:56:00 +0300 Subject: [PATCH 0379/1762] ovl: fix GPF in swapfile_activate of file from overlayfs over xfs Since overlayfs implements stacked file operations, the underlying filesystems are not supposed to be exposed to the overlayfs file, whose f_inode is an overlayfs inode. Assigning an overlayfs file to swap_file results in an attempt of xfs code to dereference an xfs_inode struct from an ovl_inode pointer: CPU: 0 PID: 2462 Comm: swapon Not tainted 4.18.0-xfstests-12721-g33e17876ea4e #3402 RIP: 0010:xfs_find_bdev_for_inode+0x23/0x2f Call Trace: xfs_iomap_swapfile_activate+0x1f/0x43 __se_sys_swapon+0xb1a/0xee9 Fix this by not assigning the real inode mapping to f_mapping, which will cause swapon() to return an error (-EINVAL). Although it makes sense not to allow setting swpafile on an overlayfs file, some users may depend on it, so we may need to fix this up in the future. Keeping f_mapping pointing to overlay inode mapping will cause O_DIRECT open to fail. Fix this by installing ovl_aops with noop_direct_IO in overlay inode mapping. Keeping f_mapping pointing to overlay inode mapping will cause other a_ops related operations to fail (e.g. readahead()). Those will be fixed by follow up patches. Suggested-by: Miklos Szeredi Fixes: f7c72396d0de ("ovl: add O_DIRECT support") Signed-off-by: Amir Goldstein Signed-off-by: Miklos Szeredi --- fs/overlayfs/file.c | 3 --- fs/overlayfs/inode.c | 6 ++++++ 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c index 32e9282893c9..a4acd84591d4 100644 --- a/fs/overlayfs/file.c +++ b/fs/overlayfs/file.c @@ -131,9 +131,6 @@ static int ovl_open(struct inode *inode, struct file *file) if (IS_ERR(realfile)) return PTR_ERR(realfile); - /* For O_DIRECT dentry_open() checks f_mapping->a_ops->direct_IO */ - file->f_mapping = realfile->f_mapping; - file->private_data = realfile; return 0; diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index 5014749fd4b4..b6ac545b5a32 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -504,6 +504,11 @@ static const struct inode_operations ovl_special_inode_operations = { .update_time = ovl_update_time, }; +const struct address_space_operations ovl_aops = { + /* For O_DIRECT dentry_open() checks f_mapping->a_ops->direct_IO */ + .direct_IO = noop_direct_IO, +}; + /* * It is possible to stack overlayfs instance on top of another * overlayfs instance as lower layer. We need to annonate the @@ -575,6 +580,7 @@ static void ovl_fill_inode(struct inode *inode, umode_t mode, dev_t rdev, case S_IFREG: inode->i_op = &ovl_file_inode_operations; inode->i_fop = &ovl_file_operations; + inode->i_mapping->a_ops = &ovl_aops; break; case S_IFDIR: From 17ef445f9befdc5c9adac270b18240ad24ee50ec Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Mon, 27 Aug 2018 15:56:01 +0300 Subject: [PATCH 0380/1762] Documentation/filesystems: update documentation of file_operations ...to kernel 4.18. Signed-off-by: Amir Goldstein Signed-off-by: Miklos Szeredi --- Documentation/filesystems/vfs.txt | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index 4b2084d0f1fb..ec2142c8dbd3 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -848,7 +848,7 @@ struct file_operations ---------------------- This describes how the VFS can manipulate an open file. As of kernel -4.1, the following members are defined: +4.18, the following members are defined: struct file_operations { struct module *owner; @@ -858,11 +858,11 @@ struct file_operations { ssize_t (*read_iter) (struct kiocb *, struct iov_iter *); ssize_t (*write_iter) (struct kiocb *, struct iov_iter *); int (*iterate) (struct file *, struct dir_context *); + int (*iterate_shared) (struct file *, struct dir_context *); __poll_t (*poll) (struct file *, struct poll_table_struct *); long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long); long (*compat_ioctl) (struct file *, unsigned int, unsigned long); int (*mmap) (struct file *, struct vm_area_struct *); - int (*mremap)(struct file *, struct vm_area_struct *); int (*open) (struct inode *, struct file *); int (*flush) (struct file *, fl_owner_t id); int (*release) (struct inode *, struct file *); @@ -882,6 +882,9 @@ struct file_operations { #ifndef CONFIG_MMU unsigned (*mmap_capabilities)(struct file *); #endif + ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int); + int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t, u64); + int (*dedupe_file_range)(struct file *, loff_t, struct file *, loff_t, u64); }; Again, all methods are called without any locks being held, unless @@ -899,6 +902,9 @@ otherwise noted. iterate: called when the VFS needs to read the directory contents + iterate_shared: called when the VFS needs to read the directory contents + when filesystem supports concurrent dir iterators + poll: called by the VFS when a process wants to check if there is activity on this file and (optionally) go to sleep until there is activity. Called by the select(2) and poll(2) system calls @@ -951,6 +957,14 @@ otherwise noted. fallocate: called by the VFS to preallocate blocks or punch a hole. + copy_file_range: called by the copy_file_range(2) system call. + + clone_file_range: called by the ioctl(2) system call for FICLONERANGE and + FICLONE commands. + + dedupe_file_range: called by the ioctl(2) system call for FIDEDUPERANGE + command. + Note that the file operations are implemented by the specific filesystem in which the inode resides. When opening a device node (character or block special) most filesystems will call special From 45cd0faae3715e305bc46e23b34c5ed4d185ceb8 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Mon, 27 Aug 2018 15:56:02 +0300 Subject: [PATCH 0381/1762] vfs: add the fadvise() file operation This is going to be used by overlayfs and possibly useful for other filesystems. Signed-off-by: Amir Goldstein Signed-off-by: Miklos Szeredi --- Documentation/filesystems/vfs.txt | 3 ++ include/linux/fs.h | 5 ++ mm/fadvise.c | 78 ++++++++++++++++++------------- 3 files changed, 53 insertions(+), 33 deletions(-) diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index ec2142c8dbd3..a6c6a8af48a2 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -885,6 +885,7 @@ struct file_operations { ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int); int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t, u64); int (*dedupe_file_range)(struct file *, loff_t, struct file *, loff_t, u64); + int (*fadvise)(struct file *, loff_t, loff_t, int); }; Again, all methods are called without any locks being held, unless @@ -965,6 +966,8 @@ otherwise noted. dedupe_file_range: called by the ioctl(2) system call for FIDEDUPERANGE command. + fadvise: possibly called by the fadvise64() system call. + Note that the file operations are implemented by the specific filesystem in which the inode resides. When opening a device node (character or block special) most filesystems will call special diff --git a/include/linux/fs.h b/include/linux/fs.h index 33322702c910..6c0b4a1c22ff 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1763,6 +1763,7 @@ struct file_operations { u64); int (*dedupe_file_range)(struct file *, loff_t, struct file *, loff_t, u64); + int (*fadvise)(struct file *, loff_t, loff_t, int); } __randomize_layout; struct inode_operations { @@ -3459,4 +3460,8 @@ static inline bool dir_relax_shared(struct inode *inode) extern bool path_noexec(const struct path *path); extern void inode_nohighmem(struct inode *inode); +/* mm/fadvise.c */ +extern int vfs_fadvise(struct file *file, loff_t offset, loff_t len, + int advice); + #endif /* _LINUX_FS_H */ diff --git a/mm/fadvise.c b/mm/fadvise.c index 2d8376e3c640..2f59bac1cb77 100644 --- a/mm/fadvise.c +++ b/mm/fadvise.c @@ -27,9 +27,9 @@ * deactivate the pages and clear PG_Referenced. */ -int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice) +static int generic_fadvise(struct file *file, loff_t offset, loff_t len, + int advice) { - struct fd f = fdget(fd); struct inode *inode; struct address_space *mapping; struct backing_dev_info *bdi; @@ -37,22 +37,14 @@ int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice) pgoff_t start_index; pgoff_t end_index; unsigned long nrpages; - int ret = 0; - if (!f.file) - return -EBADF; + inode = file_inode(file); + if (S_ISFIFO(inode->i_mode)) + return -ESPIPE; - inode = file_inode(f.file); - if (S_ISFIFO(inode->i_mode)) { - ret = -ESPIPE; - goto out; - } - - mapping = f.file->f_mapping; - if (!mapping || len < 0) { - ret = -EINVAL; - goto out; - } + mapping = file->f_mapping; + if (!mapping || len < 0) + return -EINVAL; bdi = inode_to_bdi(mapping->host); @@ -67,9 +59,9 @@ int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice) /* no bad return value, but ignore advice */ break; default: - ret = -EINVAL; + return -EINVAL; } - goto out; + return 0; } /* @@ -85,21 +77,21 @@ int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice) switch (advice) { case POSIX_FADV_NORMAL: - f.file->f_ra.ra_pages = bdi->ra_pages; - spin_lock(&f.file->f_lock); - f.file->f_mode &= ~FMODE_RANDOM; - spin_unlock(&f.file->f_lock); + file->f_ra.ra_pages = bdi->ra_pages; + spin_lock(&file->f_lock); + file->f_mode &= ~FMODE_RANDOM; + spin_unlock(&file->f_lock); break; case POSIX_FADV_RANDOM: - spin_lock(&f.file->f_lock); - f.file->f_mode |= FMODE_RANDOM; - spin_unlock(&f.file->f_lock); + spin_lock(&file->f_lock); + file->f_mode |= FMODE_RANDOM; + spin_unlock(&file->f_lock); break; case POSIX_FADV_SEQUENTIAL: - f.file->f_ra.ra_pages = bdi->ra_pages * 2; - spin_lock(&f.file->f_lock); - f.file->f_mode &= ~FMODE_RANDOM; - spin_unlock(&f.file->f_lock); + file->f_ra.ra_pages = bdi->ra_pages * 2; + spin_lock(&file->f_lock); + file->f_mode &= ~FMODE_RANDOM; + spin_unlock(&file->f_lock); break; case POSIX_FADV_WILLNEED: /* First and last PARTIAL page! */ @@ -115,8 +107,7 @@ int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice) * Ignore return value because fadvise() shall return * success even if filesystem can't retrieve a hint, */ - force_page_cache_readahead(mapping, f.file, start_index, - nrpages); + force_page_cache_readahead(mapping, file, start_index, nrpages); break; case POSIX_FADV_NOREUSE: break; @@ -183,9 +174,30 @@ int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice) } break; default: - ret = -EINVAL; + return -EINVAL; } -out: + return 0; +} + +int vfs_fadvise(struct file *file, loff_t offset, loff_t len, int advice) +{ + if (file->f_op->fadvise) + return file->f_op->fadvise(file, offset, len, advice); + + return generic_fadvise(file, offset, len, advice); +} +EXPORT_SYMBOL(vfs_fadvise); + +int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice) +{ + struct fd f = fdget(fd); + int ret; + + if (!f.file) + return -EBADF; + + ret = vfs_fadvise(f.file, offset, len, advice); + fdput(f); return ret; } From 58f33cfe73076b6497bada4f7b5bda961ed68083 Mon Sep 17 00:00:00 2001 From: Stefan Raspl Date: Fri, 24 Aug 2018 14:03:55 +0200 Subject: [PATCH 0382/1762] tools/kvm_stat: fix python3 issues MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Python3 returns a float for a regular division - switch to a division operator that returns an integer. Furthermore, filters return a generator object instead of the actual list - wrap result in yet another list, which makes it still work in both, Python2 and 3. Signed-off-by: Stefan Raspl Signed-off-by: Radim Krčmář --- tools/kvm/kvm_stat/kvm_stat | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat index 56c4b3f8a01b..e10b90a8917a 100755 --- a/tools/kvm/kvm_stat/kvm_stat +++ b/tools/kvm/kvm_stat/kvm_stat @@ -759,7 +759,7 @@ class DebugfsProvider(Provider): if len(vms) == 0: self.do_read = False - self.paths = filter(lambda x: "{}-".format(pid) in x, vms) + self.paths = list(filter(lambda x: "{}-".format(pid) in x, vms)) else: self.paths = [] @@ -1219,10 +1219,10 @@ class Tui(object): (x, term_width) = self.screen.getmaxyx() row = 2 for line in text: - start = (term_width - len(line)) / 2 + start = (term_width - len(line)) // 2 self.screen.addstr(row, start, line) row += 1 - self.screen.addstr(row + 1, (term_width - len(hint)) / 2, hint, + self.screen.addstr(row + 1, (term_width - len(hint)) // 2, hint, curses.A_STANDOUT) self.screen.getkey() From 617c66b9f236d20f11cecbb3f45e6d5675b2fae1 Mon Sep 17 00:00:00 2001 From: Stefan Raspl Date: Fri, 24 Aug 2018 14:03:56 +0200 Subject: [PATCH 0383/1762] tools/kvm_stat: fix handling of invalid paths in debugfs provider MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When filtering by guest, kvm_stat displays garbage when the guest is destroyed - see sample output below. We add code to remove the invalid paths from the providers, so at least no more garbage is displayed. Here's a sample output to illustrate: kvm statistics - pid 13986 (foo) Event Total %Total CurAvg/s diagnose_258 -2 0.0 0 deliver_program_interruption -3 0.0 0 diagnose_308 -4 0.0 0 halt_poll_invalid -91 0.0 -6 deliver_service_signal -244 0.0 -16 halt_successful_poll -250 0.1 -17 exit_pei -285 0.1 -19 exit_external_request -312 0.1 -21 diagnose_9c -328 0.1 -22 userspace_handled -713 0.1 -47 halt_attempted_poll -939 0.2 -62 deliver_emergency_signal -3126 0.6 -208 halt_wakeup -7199 1.5 -481 exit_wait_state -7379 1.5 -493 diagnose_500 -56499 11.5 -3757 exit_null -85491 17.4 -5685 diagnose_44 -133300 27.1 -8874 exit_instruction -195898 39.8 -13037 Total -492063 Signed-off-by: Stefan Raspl Signed-off-by: Radim Krčmář --- tools/kvm/kvm_stat/kvm_stat | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat index e10b90a8917a..b9e8d0def1ab 100755 --- a/tools/kvm/kvm_stat/kvm_stat +++ b/tools/kvm/kvm_stat/kvm_stat @@ -766,6 +766,13 @@ class DebugfsProvider(Provider): self.do_read = True self.reset() + def _verify_paths(self): + """Remove invalid paths""" + for path in self.paths: + if not os.path.exists(os.path.join(PATH_DEBUGFS_KVM, path)): + self.paths.remove(path) + continue + def read(self, reset=0, by_guest=0): """Returns a dict with format:'file name / field -> current value'. @@ -780,6 +787,7 @@ class DebugfsProvider(Provider): # If no debugfs filtering support is available, then don't read. if not self.do_read: return results + self._verify_paths() paths = self.paths if self._pid == 0: From 710ab11ad9329d2d4b044405e328c994b19a2aa9 Mon Sep 17 00:00:00 2001 From: Stefan Raspl Date: Fri, 24 Aug 2018 14:03:57 +0200 Subject: [PATCH 0384/1762] tools/kvm_stat: fix updates for dead guests MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit With pid filtering active, when a guest is removed e.g. via virsh shutdown, successive updates produce garbage. Therefore, we add code to detect this case and prevent further body updates. Note that when displaying the help dialog via 'h' in this case, once we exit we're stuck with the 'Collecting data...' message till we remove the filter. Signed-off-by: Stefan Raspl Signed-off-by: Radim Krčmář --- tools/kvm/kvm_stat/kvm_stat | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat index b9e8d0def1ab..7c92545931e3 100755 --- a/tools/kvm/kvm_stat/kvm_stat +++ b/tools/kvm/kvm_stat/kvm_stat @@ -1170,6 +1170,9 @@ class Tui(object): return sorted_items + if not self._is_running_guest(self.stats.pid_filter): + # leave final data on screen + return row = 3 self.screen.move(row, 0) self.screen.clrtobot() @@ -1327,6 +1330,12 @@ class Tui(object): msg = '"' + str(val) + '": Invalid value' self._refresh_header() + def _is_running_guest(self, pid): + """Check if pid is still a running process.""" + if not pid: + return True + return os.path.isdir(os.path.join('/proc/', str(pid))) + def _show_vm_selection_by_guest(self): """Draws guest selection mask. @@ -1354,7 +1363,7 @@ class Tui(object): if not guest or guest == '0': break if guest.isdigit(): - if not os.path.isdir(os.path.join('/proc/', guest)): + if not self._is_running_guest(guest): msg = '"' + guest + '": Not a running process' continue pid = int(guest) From 0db8b3102368755242b44f2b30f93302c70e8e82 Mon Sep 17 00:00:00 2001 From: Stefan Raspl Date: Fri, 24 Aug 2018 14:03:58 +0200 Subject: [PATCH 0385/1762] tools/kvm_stat: don't reset stats when setting PID filter for debugfs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When setting a PID filter in debugfs, we unnecessarily reset the statistics, although there is no reason to do so. This behavior was merely introduced with commit 9f114a03c6854f "tools/kvm_stat: add interactive command 'r'", most likely to mimic the behavior of the tracepoints provider in this respect. However, there are plenty of differences between the two providers, so there is no reason not to take advantage of the possibility to filter by PID without resetting the statistics. Signed-off-by: Stefan Raspl Signed-off-by: Radim Krčmář --- tools/kvm/kvm_stat/kvm_stat | 1 - 1 file changed, 1 deletion(-) diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat index 7c92545931e3..62fbb8802f60 100755 --- a/tools/kvm/kvm_stat/kvm_stat +++ b/tools/kvm/kvm_stat/kvm_stat @@ -764,7 +764,6 @@ class DebugfsProvider(Provider): else: self.paths = [] self.do_read = True - self.reset() def _verify_paths(self): """Remove invalid paths""" From 29c39f38e4e8dbf0497e81db6c985ee59259f002 Mon Sep 17 00:00:00 2001 From: Stefan Raspl Date: Fri, 24 Aug 2018 14:03:59 +0200 Subject: [PATCH 0386/1762] tools/kvm_stat: handle guest removals more gracefully MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When running with the DebugFS provider, removal of a guest can result in a negative CurAvg/s, which looks rather confusing. If so, suppress the body refresh and print a message instead. To reproduce, have at least one guest A completely booted. Then start another guest B (which generates a huge amount of events), then destroy B. On the next refresh, kvm_stat should display a whole lot of negative values in the CurAvg/s column. Signed-off-by: Stefan Raspl Signed-off-by: Radim Krčmář --- tools/kvm/kvm_stat/kvm_stat | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat index 62fbb8802f60..bd620579eb6f 100755 --- a/tools/kvm/kvm_stat/kvm_stat +++ b/tools/kvm/kvm_stat/kvm_stat @@ -1194,6 +1194,7 @@ class Tui(object): # print events tavg = 0 tcur = 0 + guest_removed = False for key, values in get_sorted_events(self, stats): if row >= self.screen.getmaxyx()[0] - 1 or values == (0, 0): break @@ -1201,7 +1202,10 @@ class Tui(object): key = self.get_gname_from_pid(key) if not key: continue - cur = int(round(values.delta / sleeptime)) if values.delta else '' + cur = int(round(values.delta / sleeptime)) if values.delta else 0 + if cur < 0: + guest_removed = True + continue if key[0] != ' ': if values.delta: tcur += values.delta @@ -1214,7 +1218,10 @@ class Tui(object): values.value * 100 / float(ltotal), cur)) row += 1 if row == 3: - self.screen.addstr(4, 1, 'No matching events reported yet') + if guest_removed: + self.screen.addstr(4, 1, 'Guest removed, updating...') + else: + self.screen.addstr(4, 1, 'No matching events reported yet') if row > 4: tavg = int(round(tcur / sleeptime)) if tcur > 0 else '' self.screen.addstr(row, 1, '%-40s %10d %8s' % From 404517e40867aef60554ef497d5cf8d089a5b9cf Mon Sep 17 00:00:00 2001 From: Stefan Raspl Date: Fri, 24 Aug 2018 14:04:00 +0200 Subject: [PATCH 0387/1762] tools/kvm_stat: indicate dead guests as such MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For destroyed guests, kvm_stat essentially freezes with the last data displayed. This is acceptable for users, in case they want to inspect the final data. But it looks a bit irritating. Therefore, detect this situation and display a respective indicator in the header. Signed-off-by: Stefan Raspl Signed-off-by: Radim Krčmář --- tools/kvm/kvm_stat/kvm_stat | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat index bd620579eb6f..5c2422b0f2f8 100755 --- a/tools/kvm/kvm_stat/kvm_stat +++ b/tools/kvm/kvm_stat/kvm_stat @@ -1108,10 +1108,10 @@ class Tui(object): if len(gname) > MAX_GUEST_NAME_LEN else gname)) if pid > 0: - self.screen.addstr(0, 0, 'kvm statistics - pid {0} {1}' - .format(pid, gname), curses.A_BOLD) + self._headline = 'kvm statistics - pid {0} {1}'.format(pid, gname) else: - self.screen.addstr(0, 0, 'kvm statistics - summary', curses.A_BOLD) + self._headline = 'kvm statistics - summary' + self.screen.addstr(0, 0, self._headline, curses.A_BOLD) if self.stats.fields_filter: regex = self.stats.fields_filter if len(regex) > MAX_REGEX_LEN: @@ -1170,6 +1170,7 @@ class Tui(object): return sorted_items if not self._is_running_guest(self.stats.pid_filter): + self._display_guest_dead() # leave final data on screen return row = 3 @@ -1228,6 +1229,11 @@ class Tui(object): ('Total', total, tavg), curses.A_BOLD) self.screen.refresh() + def _display_guest_dead(self): + marker = ' Guest is DEAD ' + y = min(len(self._headline), 80 - len(marker)) + self.screen.addstr(0, y, marker, curses.A_BLINK | curses.A_STANDOUT) + def _show_msg(self, text): """Display message centered text and exit on key press""" hint = 'Press any key to continue' From c012a0f2677529a0ae8f53a15bd7c61dc4ca5b5e Mon Sep 17 00:00:00 2001 From: Stefan Raspl Date: Fri, 24 Aug 2018 14:04:01 +0200 Subject: [PATCH 0388/1762] tools/kvm_stat: re-animate display of dead guests MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When filtering by guest (interactive commands 'p'/'g'), and the respective guest was destroyed, detect when the guest is up again through the guest name if possible. I.e. when displaying events for a specific guest, it is not necessary anymore to restart kvm_stat in case the guest is restarted. Signed-off-by: Stefan Raspl Signed-off-by: Radim Krčmář --- tools/kvm/kvm_stat/kvm_stat | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat index 5c2422b0f2f8..439b8a27488d 100755 --- a/tools/kvm/kvm_stat/kvm_stat +++ b/tools/kvm/kvm_stat/kvm_stat @@ -1103,6 +1103,7 @@ class Tui(object): pid = self.stats.pid_filter self.screen.erase() gname = self.get_gname_from_pid(pid) + self._gname = gname if gname: gname = ('({})'.format(gname[:MAX_GUEST_NAME_LEN] + '...' if len(gname) > MAX_GUEST_NAME_LEN @@ -1170,6 +1171,15 @@ class Tui(object): return sorted_items if not self._is_running_guest(self.stats.pid_filter): + if self._gname: + try: # ...to identify the guest by name in case it's back + pids = self.get_pid_from_gname(self._gname) + if len(pids) == 1: + self._refresh_header(pids[0]) + self._update_pid(pids[0]) + return + except: + pass self._display_guest_dead() # leave final data on screen return From 1dc27f63303db58ce1b1a6932d1825305f86d574 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Martin=20Li=C5=A1ka?= Date: Thu, 23 Aug 2018 14:29:34 +0200 Subject: [PATCH 0389/1762] perf annotate: Properly interpret indirect call MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The patch changes the parsing of: callq *0x8(%rbx) from: 0.26 │ → callq *8 to: 0.26 │ → callq *0x8(%rbx) in this case an address is followed by a register, thus one can't parse only the address. Committer testing: 1) run 'perf record sleep 10' 2) before applying the patch, run: perf annotate --stdio2 > /tmp/before 3) after applying the patch, run: perf annotate --stdio2 > /tmp/after 4) diff /tmp/before /tmp/after: --- /tmp/before 2018-08-28 11:16:03.238384143 -0300 +++ /tmp/after 2018-08-28 11:15:39.335341042 -0300 @@ -13274,7 +13274,7 @@ ↓ jle 128 hash_value = hash_table->hash_func (key); mov 0x8(%rsp),%rdi - 0.91 → callq *30 + 0.91 → callq *0x30(%r12) mov $0x2,%r8d cmp $0x2,%eax node_hash = hash_table->hashes[node_index]; @@ -13848,7 +13848,7 @@ mov %r14,%rdi sub %rbx,%r13 mov %r13,%rdx - → callq *38 + → callq *0x38(%r15) cmp %rax,%r13 1.91 ↓ je 240 1b4: mov $0xffffffff,%r13d @@ -14026,7 +14026,7 @@ mov %rcx,-0x500(%rbp) mov %r15,%rsi mov %r14,%rdi - → callq *38 + → callq *0x38(%rax) mov -0x500(%rbp),%rcx cmp %rax,%rcx ↓ jne 9b0 Signed-off-by: Martin Liška Tested-by: Arnaldo Carvalho de Melo Tested-by: Kim Phillips Cc: Jiri Olsa Link: http://lkml.kernel.org/r/bd1f3932-be2b-85f9-7582-111ee0a43b07@suse.cz Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/annotate.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 20061cf42288..e62b69ea87cd 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -246,8 +246,14 @@ find_target: indirect_call: tok = strchr(endptr, '*'); - if (tok != NULL) - ops->target.addr = strtoull(tok + 1, NULL, 16); + if (tok != NULL) { + endptr++; + + /* Indirect call can use a non-rip register and offset: callq *0x8(%rbx). + * Do not parse such instruction. */ + if (strstr(endptr, "(%r") == NULL) + ops->target.addr = strtoull(endptr, NULL, 16); + } goto find_target; } From 9b3579fc6c6ac45502de1fa9a1fdf873805c2157 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Mon, 27 Aug 2018 11:12:24 +0200 Subject: [PATCH 0390/1762] perf tests: Add breakpoint modify tests Adding to tests that aims on kernel breakpoint modification bugs. First test creates HW breakpoint, tries to change it and checks it was properly changed. It aims on kernel issue that prevents HW breakpoint to be changed via ptrace interface. The first test forks, the child sets itself as ptrace tracee and waits in signal for parent to trace it, then it calls bp_1 and quits. The parent does following steps: - creates a new breakpoint (id 0) for bp_2 function - changes that breakpoint to bp_1 function - waits for the breakpoint to hit and checks it has proper rip of bp_1 function This test aims on an issue in kernel preventing to change disabled breakpoints Second test mimics the first one except for few steps in the parent: - creates a new breakpoint (id 0) for bp_1 function - changes that breakpoint to bogus (-1) address - waits for the breakpoint to hit and checks it has proper rip of bp_1 function This test aims on an issue in kernel disabling enabled breakpoint after unsuccesful change. Committer testing: # uname -a Linux jouet 4.18.0-rc8-00002-g1236568ee3cb #12 SMP Tue Aug 7 14:08:26 -03 2018 x86_64 x86_64 x86_64 GNU/Linux # perf test -v "bp modify" 62: x86 bp modify : --- start --- test child forked, pid 25671 in bp_1 tracee exited prematurely 2 FAILED arch/x86/tests/bp-modify.c:209 modify test 1 failed test child finished with -1 ---- end ---- x86 bp modify: FAILED! # Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: David Ahern Cc: Milind Chabbi Cc: Namhyung Kim Cc: Oleg Nesterov Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20180827091228.2878-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/arch/x86/include/arch-tests.h | 1 + tools/perf/arch/x86/tests/Build | 1 + tools/perf/arch/x86/tests/arch-tests.c | 6 + tools/perf/arch/x86/tests/bp-modify.c | 213 +++++++++++++++++++++++ 4 files changed, 221 insertions(+) create mode 100644 tools/perf/arch/x86/tests/bp-modify.c diff --git a/tools/perf/arch/x86/include/arch-tests.h b/tools/perf/arch/x86/include/arch-tests.h index c1bd979b957b..613709cfbbd0 100644 --- a/tools/perf/arch/x86/include/arch-tests.h +++ b/tools/perf/arch/x86/include/arch-tests.h @@ -9,6 +9,7 @@ struct test; int test__rdpmc(struct test *test __maybe_unused, int subtest); int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest); int test__insn_x86(struct test *test __maybe_unused, int subtest); +int test__bp_modify(struct test *test, int subtest); #ifdef HAVE_DWARF_UNWIND_SUPPORT struct thread; diff --git a/tools/perf/arch/x86/tests/Build b/tools/perf/arch/x86/tests/Build index 8e2c5a38c3b9..586849ff83a0 100644 --- a/tools/perf/arch/x86/tests/Build +++ b/tools/perf/arch/x86/tests/Build @@ -5,3 +5,4 @@ libperf-y += arch-tests.o libperf-y += rdpmc.o libperf-y += perf-time-to-tsc.o libperf-$(CONFIG_AUXTRACE) += insn-x86.o +libperf-$(CONFIG_X86_64) += bp-modify.o diff --git a/tools/perf/arch/x86/tests/arch-tests.c b/tools/perf/arch/x86/tests/arch-tests.c index cc1802ff5410..d47d3f8e3c8e 100644 --- a/tools/perf/arch/x86/tests/arch-tests.c +++ b/tools/perf/arch/x86/tests/arch-tests.c @@ -23,6 +23,12 @@ struct test arch_tests[] = { .desc = "x86 instruction decoder - new instructions", .func = test__insn_x86, }, +#endif +#if defined(__x86_64__) + { + .desc = "x86 bp modify", + .func = test__bp_modify, + }, #endif { .func = NULL, diff --git a/tools/perf/arch/x86/tests/bp-modify.c b/tools/perf/arch/x86/tests/bp-modify.c new file mode 100644 index 000000000000..f53e4406709f --- /dev/null +++ b/tools/perf/arch/x86/tests/bp-modify.c @@ -0,0 +1,213 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "debug.h" +#include "tests/tests.h" +#include "arch-tests.h" + +static noinline int bp_1(void) +{ + pr_debug("in %s\n", __func__); + return 0; +} + +static noinline int bp_2(void) +{ + pr_debug("in %s\n", __func__); + return 0; +} + +static int spawn_child(void) +{ + int child = fork(); + + if (child == 0) { + /* + * The child sets itself for as tracee and + * waits in signal for parent to trace it, + * then it calls bp_1 and quits. + */ + int err = ptrace(PTRACE_TRACEME, 0, NULL, NULL); + + if (err) { + pr_debug("failed to PTRACE_TRACEME\n"); + exit(1); + } + + raise(SIGCONT); + bp_1(); + exit(0); + } + + return child; +} + +/* + * This tests creates HW breakpoint, tries to + * change it and checks it was properly changed. + */ +static int bp_modify1(void) +{ + pid_t child; + int status; + unsigned long rip = 0, dr7 = 1; + + child = spawn_child(); + + waitpid(child, &status, 0); + if (WIFEXITED(status)) { + pr_debug("tracee exited prematurely 1\n"); + return TEST_FAIL; + } + + /* + * The parent does following steps: + * - creates a new breakpoint (id 0) for bp_2 function + * - changes that breakponit to bp_1 function + * - waits for the breakpoint to hit and checks + * it has proper rip of bp_1 function + * - detaches the child + */ + if (ptrace(PTRACE_POKEUSER, child, + offsetof(struct user, u_debugreg[0]), bp_2)) { + pr_debug("failed to set breakpoint, 1st time: %s\n", + strerror(errno)); + goto out; + } + + if (ptrace(PTRACE_POKEUSER, child, + offsetof(struct user, u_debugreg[0]), bp_1)) { + pr_debug("failed to set breakpoint, 2nd time: %s\n", + strerror(errno)); + goto out; + } + + if (ptrace(PTRACE_POKEUSER, child, + offsetof(struct user, u_debugreg[7]), dr7)) { + pr_debug("failed to set dr7: %s\n", strerror(errno)); + goto out; + } + + if (ptrace(PTRACE_CONT, child, NULL, NULL)) { + pr_debug("failed to PTRACE_CONT: %s\n", strerror(errno)); + goto out; + } + + waitpid(child, &status, 0); + if (WIFEXITED(status)) { + pr_debug("tracee exited prematurely 2\n"); + return TEST_FAIL; + } + + rip = ptrace(PTRACE_PEEKUSER, child, + offsetof(struct user_regs_struct, rip), NULL); + if (rip == (unsigned long) -1) { + pr_debug("failed to PTRACE_PEEKUSER: %s\n", + strerror(errno)); + goto out; + } + + pr_debug("rip %lx, bp_1 %p\n", rip, bp_1); + +out: + if (ptrace(PTRACE_DETACH, child, NULL, NULL)) { + pr_debug("failed to PTRACE_DETACH: %s", strerror(errno)); + return TEST_FAIL; + } + + return rip == (unsigned long) bp_1 ? TEST_OK : TEST_FAIL; +} + +/* + * This tests creates HW breakpoint, tries to + * change it to bogus value and checks the original + * breakpoint is hit. + */ +static int bp_modify2(void) +{ + pid_t child; + int status; + unsigned long rip = 0, dr7 = 1; + + child = spawn_child(); + + waitpid(child, &status, 0); + if (WIFEXITED(status)) { + pr_debug("tracee exited prematurely 1\n"); + return TEST_FAIL; + } + + /* + * The parent does following steps: + * - creates a new breakpoint (id 0) for bp_1 function + * - tries to change that breakpoint to (-1) address + * - waits for the breakpoint to hit and checks + * it has proper rip of bp_1 function + * - detaches the child + */ + if (ptrace(PTRACE_POKEUSER, child, + offsetof(struct user, u_debugreg[0]), bp_1)) { + pr_debug("failed to set breakpoint: %s\n", + strerror(errno)); + goto out; + } + + if (ptrace(PTRACE_POKEUSER, child, + offsetof(struct user, u_debugreg[7]), dr7)) { + pr_debug("failed to set dr7: %s\n", strerror(errno)); + goto out; + } + + if (!ptrace(PTRACE_POKEUSER, child, + offsetof(struct user, u_debugreg[0]), (unsigned long) (-1))) { + pr_debug("failed, breakpoint set to bogus address\n"); + goto out; + } + + if (ptrace(PTRACE_CONT, child, NULL, NULL)) { + pr_debug("failed to PTRACE_CONT: %s\n", strerror(errno)); + goto out; + } + + waitpid(child, &status, 0); + if (WIFEXITED(status)) { + pr_debug("tracee exited prematurely 2\n"); + return TEST_FAIL; + } + + rip = ptrace(PTRACE_PEEKUSER, child, + offsetof(struct user_regs_struct, rip), NULL); + if (rip == (unsigned long) -1) { + pr_debug("failed to PTRACE_PEEKUSER: %s\n", + strerror(errno)); + goto out; + } + + pr_debug("rip %lx, bp_1 %p\n", rip, bp_1); + +out: + if (ptrace(PTRACE_DETACH, child, NULL, NULL)) { + pr_debug("failed to PTRACE_DETACH: %s", strerror(errno)); + return TEST_FAIL; + } + + return rip == (unsigned long) bp_1 ? TEST_OK : TEST_FAIL; +} + +int test__bp_modify(struct test *test __maybe_unused, + int subtest __maybe_unused) +{ + TEST_ASSERT_VAL("modify test 1 failed\n", !bp_modify1()); + TEST_ASSERT_VAL("modify test 2 failed\n", !bp_modify2()); + + return 0; +} From bd14406b78e6daa1ea3c1673bda1ffc9efdeead0 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Mon, 27 Aug 2018 11:12:25 +0200 Subject: [PATCH 0391/1762] perf/hw_breakpoint: Modify breakpoint even if the new attr has disabled set We need to change the breakpoint even if the attr with new fields has disabled set to true. Current code prevents following user code to change the breakpoint address: ptrace(PTRACE_POKEUSER, child, offsetof(struct user, u_debugreg[0]), addr_1) ptrace(PTRACE_POKEUSER, child, offsetof(struct user, u_debugreg[0]), addr_2) ptrace(PTRACE_POKEUSER, child, offsetof(struct user, u_debugreg[7]), dr7) The first PTRACE_POKEUSER creates the breakpoint with attr.disabled set to true: ptrace_set_breakpoint_addr(nr = 0) struct perf_event *bp = t->ptrace_bps[nr]; ptrace_register_breakpoint(..., disabled = true) ptrace_fill_bp_fields(..., disabled) register_user_hw_breakpoint So the second PTRACE_POKEUSER will be omitted: ptrace_set_breakpoint_addr(nr = 0) struct perf_event *bp = t->ptrace_bps[nr]; struct perf_event_attr attr = bp->attr; modify_user_hw_breakpoint(bp, &attr) if (!attr->disabled) modify_user_hw_breakpoint_check Reported-by: Milind Chabbi Signed-off-by: Jiri Olsa Acked-by: Frederic Weisbecker Acked-by: Oleg Nesterov Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20180827091228.2878-3-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- kernel/events/hw_breakpoint.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c index b3814fce5ecb..fb229d9c7f3c 100644 --- a/kernel/events/hw_breakpoint.c +++ b/kernel/events/hw_breakpoint.c @@ -509,6 +509,8 @@ modify_user_hw_breakpoint_check(struct perf_event *bp, struct perf_event_attr *a */ int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr) { + int err; + /* * modify_user_hw_breakpoint can be invoked with IRQs disabled and hence it * will not be possible to raise IPIs that invoke __perf_event_disable. @@ -520,11 +522,11 @@ int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *att else perf_event_disable(bp); - if (!attr->disabled) { - int err = modify_user_hw_breakpoint_check(bp, attr, false); + err = modify_user_hw_breakpoint_check(bp, attr, false); + if (err) + return err; - if (err) - return err; + if (!attr->disabled) { perf_event_enable(bp); bp->attr.disabled = 0; } From cb45302d7c5e20f0c0598cdbd7753fa44daceb2a Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Mon, 27 Aug 2018 11:12:26 +0200 Subject: [PATCH 0392/1762] perf/hw_breakpoint: Remove superfluous bp->attr.disabled = 0 Once the breakpoint was succesfully modified, the attr->disabled value is in bp->attr.disabled. So there's no reason to set it again, removing that. Signed-off-by: Jiri Olsa Acked-by: Frederic Weisbecker Acked-by: Oleg Nesterov Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: David Ahern Cc: Milind Chabbi Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20180827091228.2878-4-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- kernel/events/hw_breakpoint.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c index fb229d9c7f3c..3e560d7609fd 100644 --- a/kernel/events/hw_breakpoint.c +++ b/kernel/events/hw_breakpoint.c @@ -526,10 +526,9 @@ int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *att if (err) return err; - if (!attr->disabled) { + if (!attr->disabled) perf_event_enable(bp); - bp->attr.disabled = 0; - } + return 0; } EXPORT_SYMBOL_GPL(modify_user_hw_breakpoint); From 969558371bf926258241727ebb994f516f2e6f61 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Mon, 27 Aug 2018 11:12:27 +0200 Subject: [PATCH 0393/1762] perf/hw_breakpoint: Enable breakpoint in modify_user_hw_breakpoint Currently we enable the breakpoint back only if the breakpoint modification was successful. If it fails we can leave the breakpoint in disabled state with attr->disabled == 0. We can safely enable the breakpoint back for both the fail and success paths by checking the bp->attr.disabled, which either holds the new 'requested' disabled state or the original breakpoint state. Suggested-by: Oleg Nesterov Signed-off-by: Jiri Olsa Acked-by: Frederic Weisbecker Acked-by: Oleg Nesterov Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: David Ahern Cc: Milind Chabbi Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20180827091228.2878-5-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- kernel/events/hw_breakpoint.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c index 3e560d7609fd..d6b56180827c 100644 --- a/kernel/events/hw_breakpoint.c +++ b/kernel/events/hw_breakpoint.c @@ -523,13 +523,11 @@ int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *att perf_event_disable(bp); err = modify_user_hw_breakpoint_check(bp, attr, false); - if (err) - return err; - if (!attr->disabled) + if (!bp->attr.disabled) perf_event_enable(bp); - return 0; + return err; } EXPORT_SYMBOL_GPL(modify_user_hw_breakpoint); From bf06278c3fdf8909c3a9283e2c270b0fc170fa90 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Mon, 27 Aug 2018 11:12:28 +0200 Subject: [PATCH 0394/1762] perf/hw_breakpoint: Simplify breakpoint enable in perf_event_modify_breakpoint We can safely enable the breakpoint back for both the fail and success paths by checking only the bp->attr.disabled, which either holds the new 'requested' disabled state or the original breakpoint state. Committer testing: At the end of the series, the 'perf test' entry introduced as the first patch now runs to completion without finding the fixed issues: # perf test "bp modify" 62: x86 bp modify : Ok # In verbose mode: # perf test -v "bp modify" 62: x86 bp modify : --- start --- test child forked, pid 5161 rip 5950a0, bp_1 0x5950a0 in bp_1 rip 5950a0, bp_1 0x5950a0 in bp_1 test child finished with 0 ---- end ---- x86 bp modify: Ok Suggested-by: Oleg Nesterov Acked-by: Oleg Nesterov Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: David Ahern Cc: Milind Chabbi Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20180827091228.2878-6-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- kernel/events/core.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index f6ea33a9f904..22ede28ec07d 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -2867,16 +2867,11 @@ static int perf_event_modify_breakpoint(struct perf_event *bp, _perf_event_disable(bp); err = modify_user_hw_breakpoint_check(bp, attr, true); - if (err) { - if (!bp->attr.disabled) - _perf_event_enable(bp); - return err; - } - - if (!attr->disabled) + if (!bp->attr.disabled) _perf_event_enable(bp); - return 0; + + return err; } static int perf_event_modify_attr(struct perf_event *event, From 5ab1de932e2923f490645ad017a689c5b58dc433 Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Mon, 6 Aug 2018 17:28:00 -0500 Subject: [PATCH 0395/1762] perf arm64: Fix include path for asm-generic/unistd.h The new syscall table support for arm64 mistakenly used the system's asm-generic/unistd.h file when processing the tools/arch/arm64/include/uapi/asm/unistd.h file's include directive: #include See "Committer notes" section of commit 2b5882435606 "perf arm64: Generate system call table from asm/unistd.h" for more details. This patch removes the committer's temporary workaround, and instructs the host compiler to search the build tree's include path for the right copy of the unistd.h file, instead of the one on the system's /usr/include path. It thus fixes the committer's test that cross-builds an arm64 perf on an x86 platform running Ubuntu 14.04.5 LTS with an old toolchain: $ tools/perf/arch/arm64/entry/syscalls/mksyscalltbl /gcc-linaro-5.4.1-2017.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc gcc `pwd`/tools tools/arch/arm64/include/uapi/asm/unistd.h | grep bpf [280] = "bpf", Signed-off-by: Kim Phillips Cc: Alexander Shishkin Cc: Hendrik Brueckner Cc: Jiri Olsa Cc: Michael Ellerman Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: Thomas Richter Fixes: 2b5882435606 ("perf arm64: Generate system call table from asm/unistd.h") Link: http://lkml.kernel.org/r/20180806172800.bbcec3cfcc51e2facc978bf2@arm.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/arch/arm64/Makefile | 5 +++-- tools/perf/arch/arm64/entry/syscalls/mksyscalltbl | 6 +++--- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/tools/perf/arch/arm64/Makefile b/tools/perf/arch/arm64/Makefile index f013b115dc86..dbef716a1913 100644 --- a/tools/perf/arch/arm64/Makefile +++ b/tools/perf/arch/arm64/Makefile @@ -11,7 +11,8 @@ PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1 out := $(OUTPUT)arch/arm64/include/generated/asm header := $(out)/syscalls.c -sysdef := $(srctree)/tools/include/uapi/asm-generic/unistd.h +incpath := $(srctree)/tools +sysdef := $(srctree)/tools/arch/arm64/include/uapi/asm/unistd.h sysprf := $(srctree)/tools/perf/arch/arm64/entry/syscalls/ systbl := $(sysprf)/mksyscalltbl @@ -19,7 +20,7 @@ systbl := $(sysprf)/mksyscalltbl _dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)') $(header): $(sysdef) $(systbl) - $(Q)$(SHELL) '$(systbl)' '$(CC)' '$(HOSTCC)' $(sysdef) > $@ + $(Q)$(SHELL) '$(systbl)' '$(CC)' '$(HOSTCC)' $(incpath) $(sysdef) > $@ clean:: $(call QUIET_CLEAN, arm64) $(RM) $(header) diff --git a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl index 52e197317d3e..2dbb8cade048 100755 --- a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl +++ b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl @@ -11,7 +11,8 @@ gcc=$1 hostcc=$2 -input=$3 +incpath=$3 +input=$4 if ! test -r $input; then echo "Could not read input file" >&2 @@ -28,7 +29,6 @@ create_table_from_c() cat <<-_EoHEADER #include - #define __ARCH_WANT_RENAMEAT #include "$input" int main(int argc, char *argv[]) { @@ -42,7 +42,7 @@ create_table_from_c() printf "%s\n" " printf(\"#define SYSCALLTBL_ARM64_MAX_ID %d\\n\", __NR_$last_sc);" printf "}\n" - } | $hostcc -o $create_table_exe -x c - + } | $hostcc -I $incpath/include/uapi -o $create_table_exe -x c - $create_table_exe From fd8d2702791a970c751f8b526a17d8e725a05b46 Mon Sep 17 00:00:00 2001 From: Hisao Tanabe Date: Sat, 25 Aug 2018 00:45:56 +0900 Subject: [PATCH 0396/1762] perf evsel: Fix potential null pointer dereference in perf_evsel__new_idx() If evsel is NULL, we should return NULL to avoid a NULL pointer dereference a bit later in the code. Signed-off-by: Hisao Tanabe Acked-by: Namhyung Kim Cc: Jiri Olsa Cc: Wang Nan Fixes: 03e0a7df3efd ("perf tools: Introduce bpf-output event") LPU-Reference: 20180824154556.23428-1-xtanabe@gmail.com Link: https://lkml.kernel.org/n/tip-e5plzjhx6595a5yjaf22jss3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/evsel.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index c980bbff6353..1a61628a1c12 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -251,8 +251,9 @@ struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx) { struct perf_evsel *evsel = zalloc(perf_evsel__object.size); - if (evsel != NULL) - perf_evsel__init(evsel, attr, idx); + if (!evsel) + return NULL; + perf_evsel__init(evsel, attr, idx); if (perf_evsel__is_bpf_output(evsel)) { evsel->attr.sample_type |= (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | From dad2762aac17eac01ea97779e78a061ed1b83b86 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 29 Aug 2018 17:31:52 -0300 Subject: [PATCH 0397/1762] perf tools: Streamline bpf examples and headers installation We were emitting 4 lines, two of them misleading: make: Entering directory '/home/acme/git/perf/tools/perf' INSTALL lib INSTALL include/bpf INSTALL lib INSTALL examples/bpf make: Leaving directory '/home/acme/git/perf/tools/perf' Make it more compact by showing just two lines: make: Entering directory '/home/acme/git/perf/tools/perf' INSTALL bpf-headers INSTALL bpf-examples make: Leaving directory '/home/acme/git/perf/tools/perf' Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-0nvkyciqdkrgy829lony5925@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile.perf | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index b3d1b12a5081..5224ade3d5af 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -777,14 +777,12 @@ endif $(call QUIET_INSTALL, libexec) \ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)' ifndef NO_LIBBPF - $(call QUIET_INSTALL, lib) \ - $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf' - $(call QUIET_INSTALL, include/bpf) \ - $(INSTALL) include/bpf/*.h '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf' - $(call QUIET_INSTALL, lib) \ - $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf' - $(call QUIET_INSTALL, examples/bpf) \ - $(INSTALL) examples/bpf/*.c '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf' + $(call QUIET_INSTALL, bpf-headers) \ + $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf'; \ + $(INSTALL) include/bpf/*.h -t '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf' + $(call QUIET_INSTALL, bpf-examples) \ + $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf'; \ + $(INSTALL) examples/bpf/*.c -t '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf' endif $(call QUIET_INSTALL, perf-archive) \ $(INSTALL) $(OUTPUT)perf-archive -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)' From a72f64261359b7451f8478f2a2bf357b4e6c757f Mon Sep 17 00:00:00 2001 From: Chris Phlipot Date: Tue, 28 Aug 2018 23:19:54 -0700 Subject: [PATCH 0398/1762] perf util: Fix bad memory access in trace info. In the write to the output_fd in the error condition of record_saved_cmdline(), we are writing 8 bytes from a memory location on the stack that contains a primitive that is only 4 bytes in size. Change the primitive to 8 bytes in size to match the size of the write in order to avoid reading unknown memory from the stack. Signed-off-by: Chris Phlipot Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20180829061954.18871-1-cphlipot0@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/trace-event-info.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c index c85d0d1a65ed..7b0ca7cbb7de 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -377,7 +377,7 @@ out: static int record_saved_cmdline(void) { - unsigned int size; + unsigned long long size; char *path; struct stat st; int ret, err = 0; From c9f23d2bc21cb263ae931f3e264d003d746107bb Mon Sep 17 00:00:00 2001 From: Chris Phlipot Date: Wed, 29 Aug 2018 19:19:50 -0700 Subject: [PATCH 0399/1762] perf event-parse: Use fixed size string for comms Some implementations of libc do not support the 'm' width modifier as part of the scanf string format specifier. This can cause the parsing to fail. Since the parser never checks if the scanf parsing was successesful, this can result in a crash. Change the comm string to be allocated as a fixed size instead of dynamically using 'm' scanf width modifier. This can be safely done since comm size is limited to 16 bytes by TASK_COMM_LEN within the kernel. This change prevents perf from crashing when linked against bionic as well as reduces the total number of heap allocations and frees invoked while accomplishing the same task. Signed-off-by: Chris Phlipot Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20180830021950.15563-1-cphlipot0@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/trace-event-parse.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c index 920b1d58a068..e76214f8d596 100644 --- a/tools/perf/util/trace-event-parse.c +++ b/tools/perf/util/trace-event-parse.c @@ -164,16 +164,15 @@ void parse_ftrace_printk(struct tep_handle *pevent, void parse_saved_cmdline(struct tep_handle *pevent, char *file, unsigned int size __maybe_unused) { - char *comm; + char comm[17]; /* Max comm length in the kernel is 16. */ char *line; char *next = NULL; int pid; line = strtok_r(file, "\n", &next); while (line) { - sscanf(line, "%d %ms", &pid, &comm); - tep_register_comm(pevent, comm, pid); - free(comm); + if (sscanf(line, "%d %16s", &pid, comm) == 2) + tep_register_comm(pevent, comm, pid); line = strtok_r(NULL, "\n", &next); } } From 3d8f7615319b2bca87a4815e13787439e3339a93 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Wed, 29 Aug 2018 08:41:29 +0300 Subject: [PATCH 0400/1762] vfs: implement readahead(2) using POSIX_FADV_WILLNEED The implementation of readahead(2) syscall is identical to that of fadvise64(POSIX_FADV_WILLNEED) with a few exceptions: 1. readahead(2) returns -EINVAL for !mapping->a_ops and fadvise64() ignores the request and returns 0. 2. fadvise64() checks for integer overflow corner case 3. fadvise64() calls the optional filesystem fadvise() file operation Unite the two implementations by calling vfs_fadvise() from readahead(2) syscall. Check the !mapping->a_ops in readahead(2) syscall to preserve documented syscall ABI behaviour. Suggested-by: Miklos Szeredi Fixes: d1d04ef8572b ("ovl: stack file ops") Signed-off-by: Amir Goldstein Signed-off-by: Miklos Szeredi --- mm/Makefile | 3 +-- mm/fadvise.c | 3 +++ mm/readahead.c | 45 +++++++++++++++++---------------------------- 3 files changed, 21 insertions(+), 30 deletions(-) diff --git a/mm/Makefile b/mm/Makefile index 8716bdabe1e6..26ef77a3883b 100644 --- a/mm/Makefile +++ b/mm/Makefile @@ -32,7 +32,7 @@ ifdef CONFIG_CROSS_MEMORY_ATTACH mmu-$(CONFIG_MMU) += process_vm_access.o endif -obj-y := filemap.o mempool.o oom_kill.o \ +obj-y := filemap.o mempool.o oom_kill.o fadvise.o \ maccess.o page_alloc.o page-writeback.o \ readahead.o swap.o truncate.o vmscan.o shmem.o \ util.o mmzone.o vmstat.o backing-dev.o \ @@ -49,7 +49,6 @@ else obj-y += bootmem.o endif -obj-$(CONFIG_ADVISE_SYSCALLS) += fadvise.o ifdef CONFIG_MMU obj-$(CONFIG_ADVISE_SYSCALLS) += madvise.o endif diff --git a/mm/fadvise.c b/mm/fadvise.c index 2f59bac1cb77..467bcd032037 100644 --- a/mm/fadvise.c +++ b/mm/fadvise.c @@ -188,6 +188,8 @@ int vfs_fadvise(struct file *file, loff_t offset, loff_t len, int advice) } EXPORT_SYMBOL(vfs_fadvise); +#ifdef CONFIG_ADVISE_SYSCALLS + int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice) { struct fd f = fdget(fd); @@ -215,3 +217,4 @@ SYSCALL_DEFINE4(fadvise64, int, fd, loff_t, offset, size_t, len, int, advice) } #endif +#endif diff --git a/mm/readahead.c b/mm/readahead.c index a59ea70527b9..4e630143a0ba 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -20,6 +20,7 @@ #include #include #include +#include #include "internal.h" @@ -575,24 +576,6 @@ page_cache_async_readahead(struct address_space *mapping, } EXPORT_SYMBOL_GPL(page_cache_async_readahead); -static ssize_t -do_readahead(struct address_space *mapping, struct file *filp, - pgoff_t index, unsigned long nr) -{ - if (!mapping || !mapping->a_ops) - return -EINVAL; - - /* - * Readahead doesn't make sense for DAX inodes, but we don't want it - * to report a failure either. Instead, we just return success and - * don't do any work. - */ - if (dax_mapping(mapping)) - return 0; - - return force_page_cache_readahead(mapping, filp, index, nr); -} - ssize_t ksys_readahead(int fd, loff_t offset, size_t count) { ssize_t ret; @@ -600,16 +583,22 @@ ssize_t ksys_readahead(int fd, loff_t offset, size_t count) ret = -EBADF; f = fdget(fd); - if (f.file) { - if (f.file->f_mode & FMODE_READ) { - struct address_space *mapping = f.file->f_mapping; - pgoff_t start = offset >> PAGE_SHIFT; - pgoff_t end = (offset + count - 1) >> PAGE_SHIFT; - unsigned long len = end - start + 1; - ret = do_readahead(mapping, f.file, start, len); - } - fdput(f); - } + if (!f.file || !(f.file->f_mode & FMODE_READ)) + goto out; + + /* + * The readahead() syscall is intended to run only on files + * that can execute readahead. If readahead is not possible + * on this file, then we must return -EINVAL. + */ + ret = -EINVAL; + if (!f.file->f_mapping || !f.file->f_mapping->a_ops || + !S_ISREG(file_inode(f.file)->i_mode)) + goto out; + + ret = vfs_fadvise(f.file, offset, count, POSIX_FADV_WILLNEED); +out: + fdput(f); return ret; } From fa694160cca6dbba17c57dc7efec5f93feaf8795 Mon Sep 17 00:00:00 2001 From: Sandipan Das Date: Tue, 28 Aug 2018 14:38:48 +0530 Subject: [PATCH 0401/1762] perf probe powerpc: Ignore SyS symbols irrespective of endianness This makes sure that the SyS symbols are ignored for any powerpc system, not just the big endian ones. Reported-by: Naveen N. Rao Signed-off-by: Sandipan Das Reviewed-by: Kamalesh Babulal Acked-by: Naveen N. Rao Cc: Jiri Olsa Cc: Ravi Bangoria Fixes: fb6d59423115 ("perf probe ppc: Use the right prefix when ignoring SyS symbols on ppc") Link: http://lkml.kernel.org/r/20180828090848.1914-1-sandipan@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/arch/powerpc/util/sym-handling.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/perf/arch/powerpc/util/sym-handling.c b/tools/perf/arch/powerpc/util/sym-handling.c index 20e7d74d86cd..10a44e946f77 100644 --- a/tools/perf/arch/powerpc/util/sym-handling.c +++ b/tools/perf/arch/powerpc/util/sym-handling.c @@ -22,15 +22,16 @@ bool elf__needs_adjust_symbols(GElf_Ehdr ehdr) #endif -#if !defined(_CALL_ELF) || _CALL_ELF != 2 int arch__choose_best_symbol(struct symbol *syma, struct symbol *symb __maybe_unused) { char *sym = syma->name; +#if !defined(_CALL_ELF) || _CALL_ELF != 2 /* Skip over any initial dot */ if (*sym == '.') sym++; +#endif /* Avoid "SyS" kernel syscall aliases */ if (strlen(sym) >= 3 && !strncmp(sym, "SyS", 3)) @@ -41,6 +42,7 @@ int arch__choose_best_symbol(struct symbol *syma, return SYMBOL_A; } +#if !defined(_CALL_ELF) || _CALL_ELF != 2 /* Allow matching against dot variants */ int arch__compare_symbol_names(const char *namea, const char *nameb) { From 4e67b2a5df5d3f341776d12ee575e00ca3ef92de Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Mon, 27 Aug 2018 12:53:40 -0500 Subject: [PATCH 0402/1762] perf annotate: Fix parsing aarch64 branch instructions after objdump update MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Starting with binutils 2.28, aarch64 objdump adds comments to the disassembly output to show the alternative names of a condition code [1]. It is assumed that commas in objdump comments could occur in other arches now or in the future, so this fix is arch-independent. The fix could have been done with arm64 specific jump__parse and jump__scnprintf functions, but the jump__scnprintf instruction would have to have its comment character be a literal, since the scnprintf functions cannot receive a struct arch easily. This inconvenience also applies to the generic jump__scnprintf, which is why we add a raw_comment pointer to struct ins_operands, so the __parse function assigns it to be re-used by its corresponding __scnprintf function. Example differences in 'perf annotate --stdio2' output on an aarch64 perf.data file: BEFORE: → b.cs ffff200008133d1c // b.hs, dffff7ecc47b AFTER : ↓ b.cs 18c BEFORE: → b.cc ffff200008d8d9cc // b.lo, b.ul, dffff727295b AFTER : ↓ b.cc 31c The branch target labels 18c and 31c also now appear in the output: BEFORE: add x26, x29, #0x80 AFTER : 18c: add x26, x29, #0x80 BEFORE: add x21, x21, #0x8 AFTER : 31c: add x21, x21, #0x8 The Fixes: tag below is added so stable branches will get the update; it doesn't necessarily mean that commit was broken at the time, rather it didn't withstand the aarch64 objdump update. Tested no difference in output for sample x86_64, power arch perf.data files. [1] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=bb7eff5206e4795ac79c177a80fe9f4630aaf730 Signed-off-by: Kim Phillips Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Anton Blanchard Cc: Christian Borntraeger Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: Robin Murphy Cc: Taeung Song Cc: linux-arm-kernel@lists.infradead.org Fixes: b13bbeee5ee6 ("perf annotate: Fix branch instruction with multiple operands") Link: http://lkml.kernel.org/r/20180827125340.a2f7e291901d17cea05daba4@arm.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/annotate.c | 22 +++++++++++++++++++++- tools/perf/util/annotate.h | 1 + 2 files changed, 22 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index e62b69ea87cd..28cd6a17491b 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -282,7 +282,19 @@ bool ins__is_call(const struct ins *ins) return ins->ops == &call_ops || ins->ops == &s390_call_ops; } -static int jump__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms) +/* + * Prevents from matching commas in the comment section, e.g.: + * ffff200008446e70: b.cs ffff2000084470f4 // b.hs, b.nlast + */ +static inline const char *validate_comma(const char *c, struct ins_operands *ops) +{ + if (ops->raw_comment && c > ops->raw_comment) + return NULL; + + return c; +} + +static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms) { struct map *map = ms->map; struct symbol *sym = ms->sym; @@ -291,6 +303,10 @@ static int jump__parse(struct arch *arch __maybe_unused, struct ins_operands *op }; const char *c = strchr(ops->raw, ','); u64 start, end; + + ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char); + c = validate_comma(c, ops); + /* * Examples of lines to parse for the _cpp_lex_token@@Base * function: @@ -310,6 +326,7 @@ static int jump__parse(struct arch *arch __maybe_unused, struct ins_operands *op ops->target.addr = strtoull(c, NULL, 16); if (!ops->target.addr) { c = strchr(c, ','); + c = validate_comma(c, ops); if (c++ != NULL) ops->target.addr = strtoull(c, NULL, 16); } @@ -367,9 +384,12 @@ static int jump__scnprintf(struct ins *ins, char *bf, size_t size, return scnprintf(bf, size, "%-6s %s", ins->name, ops->target.sym->name); c = strchr(ops->raw, ','); + c = validate_comma(c, ops); + if (c != NULL) { const char *c2 = strchr(c + 1, ','); + c2 = validate_comma(c2, ops); /* check for 3-op insn */ if (c2 != NULL) c = c2; diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h index 005a5fe8a8c6..5399ba2321bb 100644 --- a/tools/perf/util/annotate.h +++ b/tools/perf/util/annotate.h @@ -22,6 +22,7 @@ struct ins { struct ins_operands { char *raw; + char *raw_comment; struct { char *raw; char *name; From f42b0e18f2e5cf34f73ef1b6327b49040b307a33 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Mon, 27 Aug 2018 07:50:47 -0500 Subject: [PATCH 0403/1762] of: add node name compare helper functions In preparation to remove device_node.name pointer, add helper functions for node name comparisons which are a common pattern throughout the kernel. Cc: Frank Rowand Signed-off-by: Rob Herring --- drivers/of/base.c | 22 ++++++++++++++++++++++ include/linux/of.h | 13 +++++++++++++ 2 files changed, 35 insertions(+) diff --git a/drivers/of/base.c b/drivers/of/base.c index bc420d2aa5f5..9095b8290150 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -54,6 +54,28 @@ DEFINE_MUTEX(of_mutex); */ DEFINE_RAW_SPINLOCK(devtree_lock); +bool of_node_name_eq(const struct device_node *np, const char *name) +{ + const char *node_name; + size_t len; + + if (!np) + return false; + + node_name = kbasename(np->full_name); + len = strchrnul(node_name, '@') - node_name; + + return (strlen(name) == len) && (strncmp(node_name, name, len) == 0); +} + +bool of_node_name_prefix(const struct device_node *np, const char *prefix) +{ + if (!np) + return false; + + return strncmp(kbasename(np->full_name), prefix, strlen(prefix)) == 0; +} + int of_n_addr_cells(struct device_node *np) { u32 cells; diff --git a/include/linux/of.h b/include/linux/of.h index b99a1a8c2952..688c52dd7b3e 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -256,6 +256,9 @@ static inline unsigned long of_read_ulong(const __be32 *cell, int size) #define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags) #define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags) +extern bool of_node_name_eq(const struct device_node *np, const char *name); +extern bool of_node_name_prefix(const struct device_node *np, const char *prefix); + static inline const char *of_node_full_name(const struct device_node *np) { return np ? np->full_name : ""; @@ -563,6 +566,16 @@ static inline struct device_node *to_of_node(const struct fwnode_handle *fwnode) return NULL; } +static inline bool of_node_name_eq(const struct device_node *np, const char *name) +{ + return false; +} + +static inline bool of_node_name_prefix(const struct device_node *np, const char *prefix) +{ + return false; +} + static inline const char* of_node_full_name(const struct device_node *np) { return ""; From cd2315d471f45a36cb1329722920d89cd6d3d11f Mon Sep 17 00:00:00 2001 From: Benjamin Fair Date: Fri, 6 Jul 2018 11:16:03 -0700 Subject: [PATCH 0404/1762] ipmi: kcs_bmc: don't change device name kcs_bmc_alloc(...) calls dev_set_name(...) which is incorrect as most bus driver frameworks, platform_driver in particular, assume that they are able to set the device name themselves. Signed-off-by: Benjamin Fair Signed-off-by: Corey Minyard --- drivers/char/ipmi/kcs_bmc.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/char/ipmi/kcs_bmc.c b/drivers/char/ipmi/kcs_bmc.c index bb882ab161fe..e6124bd548df 100644 --- a/drivers/char/ipmi/kcs_bmc.c +++ b/drivers/char/ipmi/kcs_bmc.c @@ -16,6 +16,8 @@ #include "kcs_bmc.h" +#define DEVICE_NAME "ipmi-kcs" + #define KCS_MSG_BUFSIZ 1000 #define KCS_ZERO_DATA 0 @@ -429,8 +431,6 @@ struct kcs_bmc *kcs_bmc_alloc(struct device *dev, int sizeof_priv, u32 channel) if (!kcs_bmc) return NULL; - dev_set_name(dev, "ipmi-kcs%u", channel); - spin_lock_init(&kcs_bmc->lock); kcs_bmc->channel = channel; @@ -444,7 +444,8 @@ struct kcs_bmc *kcs_bmc_alloc(struct device *dev, int sizeof_priv, u32 channel) return NULL; kcs_bmc->miscdev.minor = MISC_DYNAMIC_MINOR; - kcs_bmc->miscdev.name = dev_name(dev); + kcs_bmc->miscdev.name = devm_kasprintf(dev, GFP_KERNEL, "%s%u", + DEVICE_NAME, channel); kcs_bmc->miscdev.fops = &kcs_bmc_fops; return kcs_bmc; From 7fd6d98b89f382d414e1db528e29a67bbd749457 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Thu, 30 Aug 2018 11:50:13 +0300 Subject: [PATCH 0405/1762] i2c: i801: Allow ACPI AML access I/O ports not reserved for SMBus Commit 7ae81952cda ("i2c: i801: Allow ACPI SystemIO OpRegion to conflict with PCI BAR") made it possible for AML code to access SMBus I/O ports by installing custom SystemIO OpRegion handler and blocking i80i driver access upon first AML read/write to this OpRegion. However, while ThinkPad T560 does have SystemIO OpRegion declared under the SMBus device, it does not access any of the SMBus registers: Device (SMBU) { ... OperationRegion (SMBP, PCI_Config, 0x50, 0x04) Field (SMBP, DWordAcc, NoLock, Preserve) { , 5, TCOB, 11, Offset (0x04) } Name (TCBV, 0x00) Method (TCBS, 0, NotSerialized) { If ((TCBV == 0x00)) { TCBV = (\_SB.PCI0.SMBU.TCOB << 0x05) } Return (TCBV) /* \_SB_.PCI0.SMBU.TCBV */ } OperationRegion (TCBA, SystemIO, TCBS (), 0x10) Field (TCBA, ByteAcc, NoLock, Preserve) { Offset (0x04), , 9, CPSC, 1 } } Problem with the current approach is that it blocks all I/O port access and because this system has touchpad connected to the SMBus controller after first AML access (happens during suspend/resume cycle) the touchpad fails to work anymore. Fix this so that we allow ACPI AML I/O port access if it does not touch the region reserved for the SMBus. Fixes: 7ae81952cda ("i2c: i801: Allow ACPI SystemIO OpRegion to conflict with PCI BAR") Link: https://bugzilla.kernel.org/show_bug.cgi?id=200737 Reported-by: Yussuf Khalil Signed-off-by: Mika Westerberg Reviewed-by: Jean Delvare Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-i801.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 941c223f6491..04b60a349d7e 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -1415,6 +1415,13 @@ static void i801_add_tco(struct i801_priv *priv) } #ifdef CONFIG_ACPI +static bool i801_acpi_is_smbus_ioport(const struct i801_priv *priv, + acpi_physical_address address) +{ + return address >= priv->smba && + address <= pci_resource_end(priv->pci_dev, SMBBAR); +} + static acpi_status i801_acpi_io_handler(u32 function, acpi_physical_address address, u32 bits, u64 *value, void *handler_context, void *region_context) @@ -1430,7 +1437,7 @@ i801_acpi_io_handler(u32 function, acpi_physical_address address, u32 bits, */ mutex_lock(&priv->acpi_lock); - if (!priv->acpi_reserved) { + if (!priv->acpi_reserved && i801_acpi_is_smbus_ioport(priv, address)) { priv->acpi_reserved = true; dev_warn(&pdev->dev, "BIOS is accessing SMBus registers\n"); From 9d9a152ebaa86a9dede4624919566483c955d0a7 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 29 Aug 2018 15:06:31 +0200 Subject: [PATCH 0406/1762] i2c: designware: Re-init controllers with pm_disabled set on resume On Bay Trail and Cherry Trail devices we set the pm_disabled flag for I2C busses which the OS shares with the PUNIT as these need special handling. Until now we called dev_pm_syscore_device(dev, true) for I2C controllers with this flag set to keep these I2C controllers always on. After commit 12864ff8545f ("ACPI / LPSS: Avoid PM quirks on suspend and resume from hibernation"), this no longer works. This commit modifies lpss_iosf_exit_d3_state() to only run if lpss_iosf_enter_d3_state() has ran before it, so that it does not run on a resume from hibernate (or from S3). On these systems the conditions for lpss_iosf_enter_d3_state() to run never become true, so lpss_iosf_exit_d3_state() never gets called and the 2 LPSS DMA controllers never get forced into D0 mode, instead they are left in their default automatic power-on when needed mode. The not forcing of D0 mode for the DMA controllers enables these systems to properly enter S0ix modes, which is a good thing. But after entering S0ix modes the I2C controller connected to the PMIC no longer works, leading to e.g. broken battery monitoring. The _PS3 method for this I2C controller looks like this: Method (_PS3, 0, NotSerialized) // _PS3: Power State 3 { If ((((PMID == 0x04) || (PMID == 0x05)) || (PMID == 0x06))) { Return (Zero) } PSAT |= 0x03 Local0 = PSAT /* \_SB_.I2C5.PSAT */ } Where PMID = 0x05, so we enter the Return (Zero) path on these systems. So even if we were to not call dev_pm_syscore_device(dev, true) the I2C controller will be left in D0 rather then be switched to D3. Yet on other Bay and Cherry Trail devices S0ix is not entered unless *all* I2C controllers are in D3 mode. This combined with the I2C controller no longer working now that we reach S0ix states on these systems leads to me believing that the PUNIT itself puts the I2C controller in D3 when all other conditions for entering S0ix states are true. Since now the I2C controller is put in D3 over a suspend/resume we must re-initialize it afterwards and that does indeed fix it no longer working. This commit implements this fix by: 1) Making the suspend_late callback a no-op if pm_disabled is set and making the resume_early callback skip the clock re-enable (since it now was not disabled) while still doing the necessary I2C controller re-init. 2) Removing the dev_pm_syscore_device(dev, true) call, so that the suspend and resume callbacks are actually called. Normally this would cause the ACPI pm code to call _PS3 putting the I2C controller in D3, wreaking havoc since it is shared with the PUNIT, but in this special case the _PS3 method is a no-op so we can safely allow a "fake" suspend / resume. Fixes: 12864ff8545f ("ACPI / LPSS: Avoid PM quirks on suspend and resume ...") Link: https://bugzilla.kernel.org/show_bug.cgi?id=200861 Cc: 4.15+ # 4.15+ Signed-off-by: Hans de Goede Reviewed-by: Andy Shevchenko Acked-by: Jarkko Nikula Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-designware-master.c | 1 - drivers/i2c/busses/i2c-designware-platdrv.c | 7 ++++++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index e18442b9973a..94d94b4a9a0d 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -708,7 +708,6 @@ int i2c_dw_probe(struct dw_i2c_dev *dev) i2c_set_adapdata(adap, dev); if (dev->pm_disabled) { - dev_pm_syscore_device(dev->dev, true); irq_flags = IRQF_NO_SUSPEND; } else { irq_flags = IRQF_SHARED | IRQF_COND_SUSPEND; diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 1a8d2da5b000..b5750fd85125 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -434,6 +434,9 @@ static int dw_i2c_plat_suspend(struct device *dev) { struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); + if (i_dev->pm_disabled) + return 0; + i_dev->disable(i_dev); i2c_dw_prepare_clk(i_dev, false); @@ -444,7 +447,9 @@ static int dw_i2c_plat_resume(struct device *dev) { struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - i2c_dw_prepare_clk(i_dev, true); + if (!i_dev->pm_disabled) + i2c_dw_prepare_clk(i_dev, true); + i_dev->init(i_dev); return 0; From 1204d12a494cf5dff497859a5febf2ae30a28970 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jan=20Kundr=C3=A1t?= Date: Tue, 28 Aug 2018 10:07:40 +0200 Subject: [PATCH 0407/1762] i2c: algos: bit: make the error messages grepable MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Yep, I went looking for one of these, and I wasn't able to find it easily. That's worse than a line which is 82-chars long, IMHO. Signed-off-by: Jan Kundrát Signed-off-by: Wolfram Sang --- drivers/i2c/algos/i2c-algo-bit.c | 55 ++++++++++++++++++-------------- 1 file changed, 31 insertions(+), 24 deletions(-) diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c index 6ec65adaba49..c33dcfb87993 100644 --- a/drivers/i2c/algos/i2c-algo-bit.c +++ b/drivers/i2c/algos/i2c-algo-bit.c @@ -110,8 +110,8 @@ static int sclhi(struct i2c_algo_bit_data *adap) } #ifdef DEBUG if (jiffies != start && i2c_debug >= 3) - pr_debug("i2c-algo-bit: needed %ld jiffies for SCL to go " - "high\n", jiffies - start); + pr_debug("i2c-algo-bit: needed %ld jiffies for SCL to go high\n", + jiffies - start); #endif done: @@ -171,8 +171,9 @@ static int i2c_outb(struct i2c_adapter *i2c_adap, unsigned char c) setsda(adap, sb); udelay((adap->udelay + 1) / 2); if (sclhi(adap) < 0) { /* timed out */ - bit_dbg(1, &i2c_adap->dev, "i2c_outb: 0x%02x, " - "timeout at bit #%d\n", (int)c, i); + bit_dbg(1, &i2c_adap->dev, + "i2c_outb: 0x%02x, timeout at bit #%d\n", + (int)c, i); return -ETIMEDOUT; } /* FIXME do arbitration here: @@ -185,8 +186,8 @@ static int i2c_outb(struct i2c_adapter *i2c_adap, unsigned char c) } sdahi(adap); if (sclhi(adap) < 0) { /* timeout */ - bit_dbg(1, &i2c_adap->dev, "i2c_outb: 0x%02x, " - "timeout at ack\n", (int)c); + bit_dbg(1, &i2c_adap->dev, + "i2c_outb: 0x%02x, timeout at ack\n", (int)c); return -ETIMEDOUT; } @@ -215,8 +216,9 @@ static int i2c_inb(struct i2c_adapter *i2c_adap) sdahi(adap); for (i = 0; i < 8; i++) { if (sclhi(adap) < 0) { /* timeout */ - bit_dbg(1, &i2c_adap->dev, "i2c_inb: timeout at bit " - "#%d\n", 7 - i); + bit_dbg(1, &i2c_adap->dev, + "i2c_inb: timeout at bit #%d\n", + 7 - i); return -ETIMEDOUT; } indata *= 2; @@ -265,8 +267,9 @@ static int test_bus(struct i2c_adapter *i2c_adap) goto bailout; } if (!scl) { - printk(KERN_WARNING "%s: SCL unexpected low " - "while pulling SDA low!\n", name); + printk(KERN_WARNING + "%s: SCL unexpected low while pulling SDA low!\n", + name); goto bailout; } @@ -278,8 +281,9 @@ static int test_bus(struct i2c_adapter *i2c_adap) goto bailout; } if (!scl) { - printk(KERN_WARNING "%s: SCL unexpected low " - "while pulling SDA high!\n", name); + printk(KERN_WARNING + "%s: SCL unexpected low while pulling SDA high!\n", + name); goto bailout; } @@ -291,8 +295,9 @@ static int test_bus(struct i2c_adapter *i2c_adap) goto bailout; } if (!sda) { - printk(KERN_WARNING "%s: SDA unexpected low " - "while pulling SCL low!\n", name); + printk(KERN_WARNING + "%s: SDA unexpected low while pulling SCL low!\n", + name); goto bailout; } @@ -304,8 +309,9 @@ static int test_bus(struct i2c_adapter *i2c_adap) goto bailout; } if (!sda) { - printk(KERN_WARNING "%s: SDA unexpected low " - "while pulling SCL high!\n", name); + printk(KERN_WARNING + "%s: SDA unexpected low while pulling SCL high!\n", + name); goto bailout; } @@ -352,8 +358,8 @@ static int try_address(struct i2c_adapter *i2c_adap, i2c_start(adap); } if (i && ret) - bit_dbg(1, &i2c_adap->dev, "Used %d tries to %s client at " - "0x%02x: %s\n", i + 1, + bit_dbg(1, &i2c_adap->dev, + "Used %d tries to %s client at 0x%02x: %s\n", i + 1, addr & 1 ? "read from" : "write to", addr >> 1, ret == 1 ? "success" : "failed, timeout?"); return ret; @@ -442,8 +448,9 @@ static int readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) if (inval <= 0 || inval > I2C_SMBUS_BLOCK_MAX) { if (!(flags & I2C_M_NO_RD_ACK)) acknak(i2c_adap, 0); - dev_err(&i2c_adap->dev, "readbytes: invalid " - "block length (%d)\n", inval); + dev_err(&i2c_adap->dev, + "readbytes: invalid block length (%d)\n", + inval); return -EPROTO; } /* The original count value accounts for the extra @@ -506,8 +513,8 @@ static int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) return -ENXIO; } if (flags & I2C_M_RD) { - bit_dbg(3, &i2c_adap->dev, "emitting repeated " - "start condition\n"); + bit_dbg(3, &i2c_adap->dev, + "emitting repeated start condition\n"); i2c_repstart(adap); /* okay, now switch into reading mode */ addr |= 0x01; @@ -564,8 +571,8 @@ static int bit_xfer(struct i2c_adapter *i2c_adap, } ret = bit_doAddress(i2c_adap, pmsg); if ((ret != 0) && !nak_ok) { - bit_dbg(1, &i2c_adap->dev, "NAK from " - "device addr 0x%02x msg #%d\n", + bit_dbg(1, &i2c_adap->dev, + "NAK from device addr 0x%02x msg #%d\n", msgs[i].addr, i); goto bailout; } From 82fe39a6bc7b866fc3ffd838e3c5a4cadb328b04 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Fri, 24 Aug 2018 16:52:44 +0200 Subject: [PATCH 0408/1762] i2c: refactor function to release a DMA safe buffer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit a) rename to 'put' instead of 'release' to match 'get' when obtaining the buffer b) change the argument order to have the buffer as first argument c) add a new argument telling the function if the message was transferred. This allows the function to be used also in cases where setting up DMA failed, so the buffer needs to be freed without syncing to the message buffer. Also convert the only user. Signed-off-by: Wolfram Sang Reviewed-by: Niklas Söderlund Signed-off-by: Wolfram Sang --- Documentation/i2c/DMA-considerations | 10 +++++++--- drivers/i2c/busses/i2c-sh_mobile.c | 2 +- drivers/i2c/i2c-core-base.c | 11 ++++++----- include/linux/i2c.h | 2 +- 4 files changed, 15 insertions(+), 10 deletions(-) diff --git a/Documentation/i2c/DMA-considerations b/Documentation/i2c/DMA-considerations index 966610aa4620..203002054120 100644 --- a/Documentation/i2c/DMA-considerations +++ b/Documentation/i2c/DMA-considerations @@ -50,10 +50,14 @@ bounce buffer. But you don't need to care about that detail, just use the returned buffer. If NULL is returned, the threshold was not met or a bounce buffer could not be allocated. Fall back to PIO in that case. -In any case, a buffer obtained from above needs to be released. It ensures data -is copied back to the message and a potentially used bounce buffer is freed:: +In any case, a buffer obtained from above needs to be released. Another helper +function ensures a potentially used bounce buffer is freed:: - i2c_release_dma_safe_msg_buf(msg, dma_buf); + i2c_put_dma_safe_msg_buf(dma_buf, msg, xferred); + +The last argument 'xferred' controls if the buffer is synced back to the +message or not. No syncing is needed in cases setting up DMA had an error and +there was no data transferred. The bounce buffer handling from the core is generic and simple. It will always allocate a new bounce buffer. If you want a more sophisticated handling (e.g. diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c index 439e8778f849..279d0e5bd433 100644 --- a/drivers/i2c/busses/i2c-sh_mobile.c +++ b/drivers/i2c/busses/i2c-sh_mobile.c @@ -507,7 +507,7 @@ static void sh_mobile_i2c_dma_callback(void *data) pd->pos = pd->msg->len; pd->stop_after_dma = true; - i2c_release_dma_safe_msg_buf(pd->msg, pd->dma_buf); + i2c_put_dma_safe_msg_buf(pd->dma_buf, pd->msg, true); iic_set_clr(pd, ICIC, 0, ICIC_TDMAE | ICIC_RDMAE); } diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index f15737763608..9ee9a15e7134 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -2293,21 +2293,22 @@ u8 *i2c_get_dma_safe_msg_buf(struct i2c_msg *msg, unsigned int threshold) EXPORT_SYMBOL_GPL(i2c_get_dma_safe_msg_buf); /** - * i2c_release_dma_safe_msg_buf - release DMA safe buffer and sync with i2c_msg - * @msg: the message to be synced with + * i2c_put_dma_safe_msg_buf - release DMA safe buffer and sync with i2c_msg * @buf: the buffer obtained from i2c_get_dma_safe_msg_buf(). May be NULL. + * @msg: the message which the buffer corresponds to + * @xferred: bool saying if the message was transferred */ -void i2c_release_dma_safe_msg_buf(struct i2c_msg *msg, u8 *buf) +void i2c_put_dma_safe_msg_buf(u8 *buf, struct i2c_msg *msg, bool xferred) { if (!buf || buf == msg->buf) return; - if (msg->flags & I2C_M_RD) + if (xferred && msg->flags & I2C_M_RD) memcpy(msg->buf, buf, msg->len); kfree(buf); } -EXPORT_SYMBOL_GPL(i2c_release_dma_safe_msg_buf); +EXPORT_SYMBOL_GPL(i2c_put_dma_safe_msg_buf); MODULE_AUTHOR("Simon G. Vogl "); MODULE_DESCRIPTION("I2C-Bus main module"); diff --git a/include/linux/i2c.h b/include/linux/i2c.h index b79387fd57da..65b4eaed1d96 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -855,7 +855,7 @@ static inline u8 i2c_8bit_addr_from_msg(const struct i2c_msg *msg) } u8 *i2c_get_dma_safe_msg_buf(struct i2c_msg *msg, unsigned int threshold); -void i2c_release_dma_safe_msg_buf(struct i2c_msg *msg, u8 *buf); +void i2c_put_dma_safe_msg_buf(u8 *buf, struct i2c_msg *msg, bool xferred); int i2c_handle_smbus_host_notify(struct i2c_adapter *adap, unsigned short addr); /** From 531db50170a3e6d113c968fe7a6dda8d55d02ede Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Fri, 24 Aug 2018 16:52:45 +0200 Subject: [PATCH 0409/1762] i2c: sh_mobile: define start_ch() void as it only returns 0 anyhow MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After various refactoring over the years, start_ch() doesn't return errno anymore, so make the function return void. This saves the error handling when calling it which in turn eases cleanup of resources of a future patch. Signed-off-by: Wolfram Sang Reviewed-by: Niklas Söderlund Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-sh_mobile.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c index 279d0e5bd433..b965d52338ba 100644 --- a/drivers/i2c/busses/i2c-sh_mobile.c +++ b/drivers/i2c/busses/i2c-sh_mobile.c @@ -602,8 +602,8 @@ static void sh_mobile_i2c_xfer_dma(struct sh_mobile_i2c_data *pd) dma_async_issue_pending(chan); } -static int start_ch(struct sh_mobile_i2c_data *pd, struct i2c_msg *usr_msg, - bool do_init) +static void start_ch(struct sh_mobile_i2c_data *pd, struct i2c_msg *usr_msg, + bool do_init) { if (do_init) { /* Initialize channel registers */ @@ -627,7 +627,6 @@ static int start_ch(struct sh_mobile_i2c_data *pd, struct i2c_msg *usr_msg, /* Enable all interrupts to begin with */ iic_wr(pd, ICIC, ICIC_DTEE | ICIC_WAITE | ICIC_ALE | ICIC_TACKE); - return 0; } static int poll_dte(struct sh_mobile_i2c_data *pd) @@ -698,9 +697,7 @@ static int sh_mobile_i2c_xfer(struct i2c_adapter *adapter, pd->send_stop = i == num - 1 || msg->flags & I2C_M_STOP; pd->stop_after_dma = false; - err = start_ch(pd, msg, do_start); - if (err) - break; + start_ch(pd, msg, do_start); if (do_start) i2c_op(pd, OP_START, 0); From cebc07d84ad71bc58d6f59b770e4347da48a5a2b Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Fri, 24 Aug 2018 16:52:46 +0200 Subject: [PATCH 0410/1762] i2c: sh_mobile: fix leak when using DMA bounce buffer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We only freed the bounce buffer after successful DMA, missing the cases where DMA setup may have gone wrong. Use a better location which always gets called after each message and use 'stop_after_dma' as a flag for a successful transfer. Signed-off-by: Wolfram Sang Reviewed-by: Niklas Söderlund Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-sh_mobile.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c index b965d52338ba..818cab14e87c 100644 --- a/drivers/i2c/busses/i2c-sh_mobile.c +++ b/drivers/i2c/busses/i2c-sh_mobile.c @@ -507,8 +507,6 @@ static void sh_mobile_i2c_dma_callback(void *data) pd->pos = pd->msg->len; pd->stop_after_dma = true; - i2c_put_dma_safe_msg_buf(pd->dma_buf, pd->msg, true); - iic_set_clr(pd, ICIC, 0, ICIC_TDMAE | ICIC_RDMAE); } @@ -706,6 +704,10 @@ static int sh_mobile_i2c_xfer(struct i2c_adapter *adapter, timeout = wait_event_timeout(pd->wait, pd->sr & (ICSR_TACK | SW_DONE), adapter->timeout); + + /* 'stop_after_dma' tells if DMA transfer was complete */ + i2c_put_dma_safe_msg_buf(pd->dma_buf, pd->msg, pd->stop_after_dma); + if (!timeout) { dev_err(pd->dev, "Transfer request timed out\n"); if (pd->dma_direction != DMA_NONE) From bded6c03e398dc6e862dc8301fb9a60175740653 Mon Sep 17 00:00:00 2001 From: Akshu Agrawal Date: Tue, 21 Aug 2018 12:21:57 +0530 Subject: [PATCH 0411/1762] clk: x86: Set default parent to 48Mhz System clk provided in ST soc can be set to: 48Mhz, non-spread 25Mhz, spread To get accurate rate, we need it to set it at non-spread option which is 48Mhz. Signed-off-by: Akshu Agrawal Reviewed-by: Daniel Kurtz Fixes: 421bf6a1f061 ("clk: x86: Add ST oscout platform clock") Signed-off-by: Stephen Boyd --- drivers/clk/x86/clk-st.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/x86/clk-st.c b/drivers/clk/x86/clk-st.c index fb62f3938008..3a0996f2d556 100644 --- a/drivers/clk/x86/clk-st.c +++ b/drivers/clk/x86/clk-st.c @@ -46,7 +46,7 @@ static int st_clk_probe(struct platform_device *pdev) clk_oscout1_parents, ARRAY_SIZE(clk_oscout1_parents), 0, st_data->base + CLKDRVSTR2, OSCOUT1CLK25MHZ, 3, 0, NULL); - clk_set_parent(hws[ST_CLK_MUX]->clk, hws[ST_CLK_25M]->clk); + clk_set_parent(hws[ST_CLK_MUX]->clk, hws[ST_CLK_48M]->clk); hws[ST_CLK_GATE] = clk_hw_register_gate(NULL, "oscout1", "oscout1_mux", 0, st_data->base + MISCCLKCNTL1, OSCCLKENB, From 2b52e2a67c86b0714eeae0d2030cb7fc14737626 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 27 Aug 2018 12:07:37 +0900 Subject: [PATCH 0412/1762] arc: remove redundant GCC version checks Commit cafa0010cd51 ("Raise the minimum required gcc version to 4.6") bumped the minimum GCC version to 4.6 for all architectures. With GCC >= 4.6 assumed, 'upto_gcc44' is empty, 'atleast_gcc44' is y. Signed-off-by: Masahiro Yamada Signed-off-by: Vineet Gupta --- arch/arc/Makefile | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/arch/arc/Makefile b/arch/arc/Makefile index fb026196aaab..99cce77ab98f 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -43,10 +43,7 @@ ifdef CONFIG_ARC_CURR_IN_REG LINUXINCLUDE += -include ${src}/arch/arc/include/asm/current.h endif -upto_gcc44 := $(call cc-ifversion, -le, 0404, y) -atleast_gcc44 := $(call cc-ifversion, -ge, 0404, y) - -cflags-$(atleast_gcc44) += -fsection-anchors +cflags-y += -fsection-anchors cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape @@ -82,11 +79,6 @@ cflags-$(disable_small_data) += -mno-sdata -fcall-used-gp cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB -# STAR 9000518362: (fixed with binutils shipping with gcc 4.8) -# arc-linux-uclibc-ld (buildroot) or arceb-elf32-ld (EZChip) don't accept -# --build-id w/o "-marclinux". Default arc-elf32-ld is OK -ldflags-$(upto_gcc44) += -marclinux - LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name) # Modules with short calls might break for calls into builtin-kernel From 217c3e0196758662aa0429863b09d1c13da1c5d6 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Fri, 31 Aug 2018 07:47:28 +1000 Subject: [PATCH 0413/1762] disable stringop truncation warnings for now They are too noisy Signed-off-by: Stephen Rothwell Signed-off-by: Linus Torvalds --- Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Makefile b/Makefile index 2b458801ba74..a34a9283ee90 100644 --- a/Makefile +++ b/Makefile @@ -807,6 +807,9 @@ KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) # disable pointer signed / unsigned warnings in gcc 4.0 KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) +# disable stringop warnings in gcc 8+ +KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation) + # disable invalid "can't wrap" optimizations for signed / pointers KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) From 0986b16ab49b18063d29a9e02e9c7fab1928bc8e Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Fri, 24 Aug 2018 12:02:06 +1000 Subject: [PATCH 0414/1762] m68k/mac: Use correct PMU response format Now that the 68k Mac port has adopted the via-pmu driver, it must decode the PMU response accordingly otherwise the date and time will be wrong. Fixes: ebd722275f9cfc67 ("macintosh/via-pmu: Replace via-pmu68k driver with via-pmu driver") Signed-off-by: Finn Thain Signed-off-by: Geert Uytterhoeven --- arch/m68k/mac/misc.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/arch/m68k/mac/misc.c b/arch/m68k/mac/misc.c index 3534aa6a4dc2..1b083c500b9a 100644 --- a/arch/m68k/mac/misc.c +++ b/arch/m68k/mac/misc.c @@ -98,11 +98,10 @@ static time64_t pmu_read_time(void) if (pmu_request(&req, NULL, 1, PMU_READ_RTC) < 0) return 0; - while (!req.complete) - pmu_poll(); + pmu_wait_complete(&req); - time = (u32)((req.reply[1] << 24) | (req.reply[2] << 16) | - (req.reply[3] << 8) | req.reply[4]); + time = (u32)((req.reply[0] << 24) | (req.reply[1] << 16) | + (req.reply[2] << 8) | req.reply[3]); return time - RTC_OFFSET; } @@ -116,8 +115,7 @@ static void pmu_write_time(time64_t time) (data >> 24) & 0xFF, (data >> 16) & 0xFF, (data >> 8) & 0xFF, data & 0xFF) < 0) return; - while (!req.complete) - pmu_poll(); + pmu_wait_complete(&req); } static __u8 pmu_read_pram(int offset) From d49b48f088c323dbacae44dfbe56d9c985c8a2a1 Mon Sep 17 00:00:00 2001 From: Vincent Whitchurch Date: Fri, 31 Aug 2018 09:04:18 +0200 Subject: [PATCH 0415/1762] gpio: Fix crash due to registration race gpiochip_add_data_with_key() adds the gpiochip to the gpio_devices list before of_gpiochip_add() is called, but it's only the latter which sets the ->of_xlate function pointer. gpiochip_find() can be called by someone else between these two actions, and it can find the chip and call of_gpiochip_match_node_and_xlate() which leads to the following crash due to a NULL ->of_xlate(). Unhandled prefetch abort: page domain fault (0x01b) at 0x00000000 Modules linked in: leds_gpio(+) gpio_generic(+) CPU: 0 PID: 830 Comm: insmod Not tainted 4.18.0+ #43 Hardware name: ARM-Versatile Express PC is at (null) LR is at of_gpiochip_match_node_and_xlate+0x2c/0x38 Process insmod (pid: 830, stack limit = 0x(ptrval)) (of_gpiochip_match_node_and_xlate) from (gpiochip_find+0x48/0x84) (gpiochip_find) from (of_get_named_gpiod_flags+0xa8/0x238) (of_get_named_gpiod_flags) from (gpiod_get_from_of_node+0x2c/0xc8) (gpiod_get_from_of_node) from (devm_fwnode_get_index_gpiod_from_child+0xb8/0x144) (devm_fwnode_get_index_gpiod_from_child) from (gpio_led_probe+0x208/0x3c4 [leds_gpio]) (gpio_led_probe [leds_gpio]) from (platform_drv_probe+0x48/0x9c) (platform_drv_probe) from (really_probe+0x1d0/0x3d4) (really_probe) from (driver_probe_device+0x78/0x1c0) (driver_probe_device) from (__driver_attach+0x120/0x13c) (__driver_attach) from (bus_for_each_dev+0x68/0xb4) (bus_for_each_dev) from (bus_add_driver+0x1a8/0x268) (bus_add_driver) from (driver_register+0x78/0x10c) (driver_register) from (do_one_initcall+0x54/0x1fc) (do_one_initcall) from (do_init_module+0x64/0x1f4) (do_init_module) from (load_module+0x2198/0x26ac) (load_module) from (sys_finit_module+0xe0/0x110) (sys_finit_module) from (ret_fast_syscall+0x0/0x54) One way to fix this would be to rework the hairy registration sequence in gpiochip_add_data_with_key(), but since I'd probably introduce a couple of new bugs if I attempted that, simply add a check for a non-NULL of_xlate function pointer in of_gpiochip_match_node_and_xlate(). This works since the driver looking for the gpio will simply fail to find the gpio and defer its probe and be reprobed when the driver which is registering the gpiochip has fully completed its probe. Signed-off-by: Vincent Whitchurch Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib-of.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index a4f1157d6aa0..d4e7a09598fa 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -31,6 +31,7 @@ static int of_gpiochip_match_node_and_xlate(struct gpio_chip *chip, void *data) struct of_phandle_args *gpiospec = data; return chip->gpiodev->dev.of_node == gpiospec->np && + chip->of_xlate && chip->of_xlate(chip, gpiospec, NULL) >= 0; } From f52bb98f5aded4c43e52f5ce19fb83f7261e9e73 Mon Sep 17 00:00:00 2001 From: James Morse Date: Thu, 30 Aug 2018 16:05:32 +0100 Subject: [PATCH 0416/1762] arm64: mm: always enable CONFIG_HOLES_IN_ZONE Commit 6d526ee26ccd ("arm64: mm: enable CONFIG_HOLES_IN_ZONE for NUMA") only enabled HOLES_IN_ZONE for NUMA systems because the NUMA code was choking on the missing zone for nomap pages. This problem doesn't just apply to NUMA systems. If the architecture doesn't set HAVE_ARCH_PFN_VALID, pfn_valid() will return true if the pfn is part of a valid sparsemem section. When working with multiple pages, the mm code uses pfn_valid_within() to test each page it uses within the sparsemem section is valid. On most systems memory comes in MAX_ORDER_NR_PAGES chunks which all have valid/initialised struct pages. In this case pfn_valid_within() is optimised out. Systems where this isn't true (e.g. due to nomap) should set HOLES_IN_ZONE and provide HAVE_ARCH_PFN_VALID so that mm tests each page as it works with it. Currently non-NUMA arm64 systems can't enable HOLES_IN_ZONE, leading to a VM_BUG_ON(): | page:fffffdff802e1780 is uninitialized and poisoned | raw: ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff | raw: ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff | page dumped because: VM_BUG_ON_PAGE(PagePoisoned(p)) | ------------[ cut here ]------------ | kernel BUG at include/linux/mm.h:978! | Internal error: Oops - BUG: 0 [#1] PREEMPT SMP [...] | CPU: 1 PID: 25236 Comm: dd Not tainted 4.18.0 #7 | Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 | pstate: 40000085 (nZcv daIf -PAN -UAO) | pc : move_freepages_block+0x144/0x248 | lr : move_freepages_block+0x144/0x248 | sp : fffffe0071177680 [...] | Process dd (pid: 25236, stack limit = 0x0000000094cc07fb) | Call trace: | move_freepages_block+0x144/0x248 | steal_suitable_fallback+0x100/0x16c | get_page_from_freelist+0x440/0xb20 | __alloc_pages_nodemask+0xe8/0x838 | new_slab+0xd4/0x418 | ___slab_alloc.constprop.27+0x380/0x4a8 | __slab_alloc.isra.21.constprop.26+0x24/0x34 | kmem_cache_alloc+0xa8/0x180 | alloc_buffer_head+0x1c/0x90 | alloc_page_buffers+0x68/0xb0 | create_empty_buffers+0x20/0x1ec | create_page_buffers+0xb0/0xf0 | __block_write_begin_int+0xc4/0x564 | __block_write_begin+0x10/0x18 | block_write_begin+0x48/0xd0 | blkdev_write_begin+0x28/0x30 | generic_perform_write+0x98/0x16c | __generic_file_write_iter+0x138/0x168 | blkdev_write_iter+0x80/0xf0 | __vfs_write+0xe4/0x10c | vfs_write+0xb4/0x168 | ksys_write+0x44/0x88 | sys_write+0xc/0x14 | el0_svc_naked+0x30/0x34 | Code: aa1303e0 90001a01 91296421 94008902 (d4210000) | ---[ end trace 1601ba47f6e883fe ]--- Remove the NUMA dependency. Link: https://www.spinics.net/lists/arm-kernel/msg671851.html Cc: Cc: Ard Biesheuvel Reported-by: Mikulas Patocka Reviewed-by: Pavel Tatashin Tested-by: Mikulas Patocka Signed-off-by: James Morse Signed-off-by: Will Deacon --- arch/arm64/Kconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 29e75b47becd..1b1a0e95c751 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -763,7 +763,6 @@ config NEED_PER_CPU_EMBED_FIRST_CHUNK config HOLES_IN_ZONE def_bool y - depends on NUMA source kernel/Kconfig.hz From 5fcb457ac2fdc62c5ff6d3962c958b1301bc5ea1 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Fri, 31 Aug 2018 11:24:56 +0300 Subject: [PATCH 0417/1762] ASoC: davinci-mcasp: Add support for FIFO usage caused delay reporting McASP have write and read FIFO, each 64 words deep. From the WFIFOS/RFIFOS registers we can read the amount of data currently in the FIFO which can be directly reported as delay. Signed-off-by: Peter Ujfalusi Signed-off-by: Mark Brown --- sound/soc/davinci/davinci-mcasp.c | 37 +++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c index f70db8412c7c..267aee776b2d 100644 --- a/sound/soc/davinci/davinci-mcasp.c +++ b/sound/soc/davinci/davinci-mcasp.c @@ -1041,6 +1041,42 @@ static int davinci_mcasp_calc_clk_div(struct davinci_mcasp *mcasp, return error_ppm; } +static inline u32 davinci_mcasp_tx_delay(struct davinci_mcasp *mcasp) +{ + if (!mcasp->txnumevt) + return 0; + + return mcasp_get_reg(mcasp, mcasp->fifo_base + MCASP_WFIFOSTS_OFFSET); +} + +static inline u32 davinci_mcasp_rx_delay(struct davinci_mcasp *mcasp) +{ + if (!mcasp->rxnumevt) + return 0; + + return mcasp_get_reg(mcasp, mcasp->fifo_base + MCASP_RFIFOSTS_OFFSET); +} + +static snd_pcm_sframes_t davinci_mcasp_delay( + struct snd_pcm_substream *substream, + struct snd_soc_dai *cpu_dai) +{ + struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(cpu_dai); + u32 fifo_use; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + fifo_use = davinci_mcasp_tx_delay(mcasp); + else + fifo_use = davinci_mcasp_rx_delay(mcasp); + + /* + * Divide the used locations with the channel count to get the + * FIFO usage in samples (don't care about partial samples in the + * buffer). + */ + return fifo_use / substream->runtime->channels; +} + static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *cpu_dai) @@ -1365,6 +1401,7 @@ static const struct snd_soc_dai_ops davinci_mcasp_dai_ops = { .startup = davinci_mcasp_startup, .shutdown = davinci_mcasp_shutdown, .trigger = davinci_mcasp_trigger, + .delay = davinci_mcasp_delay, .hw_params = davinci_mcasp_hw_params, .set_fmt = davinci_mcasp_set_dai_fmt, .set_clkdiv = davinci_mcasp_set_clkdiv, From 6fb86d97207880c1286cd4cb3a7e6a598afbc727 Mon Sep 17 00:00:00 2001 From: Mukesh Ojha Date: Tue, 28 Aug 2018 12:24:54 +0530 Subject: [PATCH 0418/1762] cpu/hotplug: Remove skip_onerr field from cpuhp_step structure When notifiers were there, `skip_onerr` was used to avoid calling particular step startup/teardown callbacks in the CPU up/down rollback path, which made the hotplug asymmetric. As notifiers are gone now after the full state machine conversion, the `skip_onerr` field is no longer required. Remove it from the structure and its usage. Signed-off-by: Mukesh Ojha Signed-off-by: Thomas Gleixner Acked-by: Peter Zijlstra (Intel) Link: https://lkml.kernel.org/r/1535439294-31426-1-git-send-email-mojha@codeaurora.org --- kernel/cpu.c | 26 ++++---------------------- 1 file changed, 4 insertions(+), 22 deletions(-) diff --git a/kernel/cpu.c b/kernel/cpu.c index ed44d7d34c2d..aa7fe85ad62e 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -102,8 +102,6 @@ static inline void cpuhp_lock_release(bool bringup) { } * @name: Name of the step * @startup: Startup function of the step * @teardown: Teardown function of the step - * @skip_onerr: Do not invoke the functions on error rollback - * Will go away once the notifiers are gone * @cant_stop: Bringup/teardown can't be stopped at this step */ struct cpuhp_step { @@ -119,7 +117,6 @@ struct cpuhp_step { struct hlist_node *node); } teardown; struct hlist_head list; - bool skip_onerr; bool cant_stop; bool multi_instance; }; @@ -550,12 +547,8 @@ static int bringup_cpu(unsigned int cpu) static void undo_cpu_up(unsigned int cpu, struct cpuhp_cpu_state *st) { - for (st->state--; st->state > st->target; st->state--) { - struct cpuhp_step *step = cpuhp_get_step(st->state); - - if (!step->skip_onerr) - cpuhp_invoke_callback(cpu, st->state, false, NULL, NULL); - } + for (st->state--; st->state > st->target; st->state--) + cpuhp_invoke_callback(cpu, st->state, false, NULL, NULL); } static int cpuhp_up_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st, @@ -644,12 +637,6 @@ static void cpuhp_thread_fun(unsigned int cpu) WARN_ON_ONCE(!cpuhp_is_ap_state(state)); - if (st->rollback) { - struct cpuhp_step *step = cpuhp_get_step(state); - if (step->skip_onerr) - goto next; - } - if (cpuhp_is_atomic_state(state)) { local_irq_disable(); st->result = cpuhp_invoke_callback(cpu, state, bringup, st->node, &st->last); @@ -673,7 +660,6 @@ static void cpuhp_thread_fun(unsigned int cpu) st->should_run = false; } -next: cpuhp_lock_release(bringup); if (!st->should_run) @@ -916,12 +902,8 @@ void cpuhp_report_idle_dead(void) static void undo_cpu_down(unsigned int cpu, struct cpuhp_cpu_state *st) { - for (st->state++; st->state < st->target; st->state++) { - struct cpuhp_step *step = cpuhp_get_step(st->state); - - if (!step->skip_onerr) - cpuhp_invoke_callback(cpu, st->state, true, NULL, NULL); - } + for (st->state++; st->state < st->target; st->state++) + cpuhp_invoke_callback(cpu, st->state, true, NULL, NULL); } static int cpuhp_down_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st, From 0413bedabc886c3a56804d1c80a58e99077b1d91 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Tue, 28 Aug 2018 15:10:48 -0500 Subject: [PATCH 0419/1762] of: Add device_type access helper functions In preparation to remove direct access to device_node.type, add of_node_is_type() and of_node_get_device_type() helpers to check and retrieve the device type. Cc: Frank Rowand Signed-off-by: Rob Herring --- include/linux/of.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/linux/of.h b/include/linux/of.h index 688c52dd7b3e..99b0ebf49632 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -988,6 +988,18 @@ static inline struct device_node *of_find_matching_node( return of_find_matching_node_and_match(from, matches, NULL); } +static inline const char *of_node_get_device_type(const struct device_node *np) +{ + return of_get_property(np, "type", NULL); +} + +static inline bool of_node_is_type(const struct device_node *np, const char *type) +{ + const char *match = of_node_get_device_type(np); + + return np && match && type && !strcmp(match, type); +} + /** * of_property_count_u8_elems - Count the number of u8 elements in a property * From 2512e40e48d21d8bac09f7e91d2c3ceb2d3b50b2 Mon Sep 17 00:00:00 2001 From: Corey Minyard Date: Wed, 22 Aug 2018 12:08:13 -0500 Subject: [PATCH 0420/1762] ipmi: Rework SMI registration failure There were certain situations where ipmi_register_smi() would return a failure, but the interface would still be registered and would need to be unregistered. This is obviously a bad design and resulted in an oops in certain failure cases. If the interface is started up in ipmi_register_smi(), then an error occurs, shut down the interface there so the cleanup can be done properly. Fix the various smi users, too. Signed-off-by: Corey Minyard Reported-by: Justin Ernst Tested-by: Justin Ernst Cc: Andrew Banman Cc: Russ Anderson Cc: # 4.18.x --- drivers/char/ipmi/ipmi_msghandler.c | 53 ++++++++++++++++------------- drivers/char/ipmi/ipmi_si_intf.c | 19 +++-------- drivers/char/ipmi/ipmi_ssif.c | 13 ++----- 3 files changed, 38 insertions(+), 47 deletions(-) diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 51832b8a2c62..7fc9612070a1 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -3381,39 +3381,45 @@ int ipmi_register_smi(const struct ipmi_smi_handlers *handlers, rv = handlers->start_processing(send_info, intf); if (rv) - goto out; + goto out_err; rv = __bmc_get_device_id(intf, NULL, &id, NULL, NULL, i); if (rv) { dev_err(si_dev, "Unable to get the device id: %d\n", rv); - goto out; + goto out_err_started; } mutex_lock(&intf->bmc_reg_mutex); rv = __scan_channels(intf, &id); mutex_unlock(&intf->bmc_reg_mutex); + if (rv) + goto out_err_bmc_reg; - out: - if (rv) { - ipmi_bmc_unregister(intf); - list_del_rcu(&intf->link); - mutex_unlock(&ipmi_interfaces_mutex); - synchronize_srcu(&ipmi_interfaces_srcu); - cleanup_srcu_struct(&intf->users_srcu); - kref_put(&intf->refcount, intf_free); - } else { - /* - * Keep memory order straight for RCU readers. Make - * sure everything else is committed to memory before - * setting intf_num to mark the interface valid. - */ - smp_wmb(); - intf->intf_num = i; - mutex_unlock(&ipmi_interfaces_mutex); + /* + * Keep memory order straight for RCU readers. Make + * sure everything else is committed to memory before + * setting intf_num to mark the interface valid. + */ + smp_wmb(); + intf->intf_num = i; + mutex_unlock(&ipmi_interfaces_mutex); - /* After this point the interface is legal to use. */ - call_smi_watchers(i, intf->si_dev); - } + /* After this point the interface is legal to use. */ + call_smi_watchers(i, intf->si_dev); + + return 0; + + out_err_bmc_reg: + ipmi_bmc_unregister(intf); + out_err_started: + if (intf->handlers->shutdown) + intf->handlers->shutdown(intf->send_info); + out_err: + list_del_rcu(&intf->link); + mutex_unlock(&ipmi_interfaces_mutex); + synchronize_srcu(&ipmi_interfaces_srcu); + cleanup_srcu_struct(&intf->users_srcu); + kref_put(&intf->refcount, intf_free); return rv; } @@ -3504,7 +3510,8 @@ void ipmi_unregister_smi(struct ipmi_smi *intf) } srcu_read_unlock(&intf->users_srcu, index); - intf->handlers->shutdown(intf->send_info); + if (intf->handlers->shutdown) + intf->handlers->shutdown(intf->send_info); cleanup_smi_msgs(intf); diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 90ec010bffbd..5faa917df1b6 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -2083,18 +2083,9 @@ static int try_smi_init(struct smi_info *new_smi) si_to_str[new_smi->io.si_type]); WARN_ON(new_smi->io.dev->init_name != NULL); + + out_err: kfree(init_name); - - return 0; - -out_err: - if (new_smi->intf) { - ipmi_unregister_smi(new_smi->intf); - new_smi->intf = NULL; - } - - kfree(init_name); - return rv; } @@ -2227,6 +2218,8 @@ static void shutdown_smi(void *send_info) kfree(smi_info->si_sm); smi_info->si_sm = NULL; + + smi_info->intf = NULL; } /* @@ -2240,10 +2233,8 @@ static void cleanup_one_si(struct smi_info *smi_info) list_del(&smi_info->link); - if (smi_info->intf) { + if (smi_info->intf) ipmi_unregister_smi(smi_info->intf); - smi_info->intf = NULL; - } if (smi_info->pdev) { if (smi_info->pdev_registered) diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c index 18e4650c233b..c12edc8e91df 100644 --- a/drivers/char/ipmi/ipmi_ssif.c +++ b/drivers/char/ipmi/ipmi_ssif.c @@ -1214,18 +1214,11 @@ static void shutdown_ssif(void *send_info) complete(&ssif_info->wake_thread); kthread_stop(ssif_info->thread); } - - /* - * No message can be outstanding now, we have removed the - * upper layer and it permitted us to do so. - */ - kfree(ssif_info); } static int ssif_remove(struct i2c_client *client) { struct ssif_info *ssif_info = i2c_get_clientdata(client); - struct ipmi_smi *intf; struct ssif_addr_info *addr_info; if (!ssif_info) @@ -1235,9 +1228,7 @@ static int ssif_remove(struct i2c_client *client) * After this point, we won't deliver anything asychronously * to the message handler. We can unregister ourself. */ - intf = ssif_info->intf; - ssif_info->intf = NULL; - ipmi_unregister_smi(intf); + ipmi_unregister_smi(ssif_info->intf); list_for_each_entry(addr_info, &ssif_infos, link) { if (addr_info->client == client) { @@ -1246,6 +1237,8 @@ static int ssif_remove(struct i2c_client *client) } } + kfree(ssif_info); + return 0; } From c86ba91be75702c013bbf7379542920b6920e98f Mon Sep 17 00:00:00 2001 From: Corey Minyard Date: Thu, 23 Aug 2018 15:22:35 -0500 Subject: [PATCH 0421/1762] ipmi: Move BT capabilities detection to the detect call The capabilities detection was being done as part of the normal state machine, but it was possible for it to be running while the upper layers of the IPMI driver were initializing the device, resulting in error and failure to initialize. Move the capabilities detection to the the detect function, so it's done before anything else runs on the device. This also simplifies the state machine and removes some code, as a bonus. Signed-off-by: Corey Minyard Reported-by: Andrew Banman Tested-by: Andrew Banman Cc: --- drivers/char/ipmi/ipmi_bt_sm.c | 92 ++++++++++++++++++---------------- 1 file changed, 48 insertions(+), 44 deletions(-) diff --git a/drivers/char/ipmi/ipmi_bt_sm.c b/drivers/char/ipmi/ipmi_bt_sm.c index a3397664f800..97d6856c9c0f 100644 --- a/drivers/char/ipmi/ipmi_bt_sm.c +++ b/drivers/char/ipmi/ipmi_bt_sm.c @@ -59,8 +59,6 @@ enum bt_states { BT_STATE_RESET3, BT_STATE_RESTART, BT_STATE_PRINTME, - BT_STATE_CAPABILITIES_BEGIN, - BT_STATE_CAPABILITIES_END, BT_STATE_LONG_BUSY /* BT doesn't get hosed :-) */ }; @@ -86,7 +84,6 @@ struct si_sm_data { int error_retries; /* end of "common" fields */ int nonzero_status; /* hung BMCs stay all 0 */ enum bt_states complete; /* to divert the state machine */ - int BT_CAP_outreqs; long BT_CAP_req2rsp; int BT_CAP_retries; /* Recommended retries */ }; @@ -137,8 +134,6 @@ static char *state2txt(unsigned char state) case BT_STATE_RESET3: return("RESET3"); case BT_STATE_RESTART: return("RESTART"); case BT_STATE_LONG_BUSY: return("LONG_BUSY"); - case BT_STATE_CAPABILITIES_BEGIN: return("CAP_BEGIN"); - case BT_STATE_CAPABILITIES_END: return("CAP_END"); } return("BAD STATE"); } @@ -185,7 +180,6 @@ static unsigned int bt_init_data(struct si_sm_data *bt, struct si_sm_io *io) bt->complete = BT_STATE_IDLE; /* end here */ bt->BT_CAP_req2rsp = BT_NORMAL_TIMEOUT * USEC_PER_SEC; bt->BT_CAP_retries = BT_NORMAL_RETRY_LIMIT; - /* BT_CAP_outreqs == zero is a flag to read BT Capabilities */ return 3; /* We claim 3 bytes of space; ought to check SPMI table */ } @@ -451,7 +445,7 @@ static enum si_sm_result error_recovery(struct si_sm_data *bt, static enum si_sm_result bt_event(struct si_sm_data *bt, long time) { - unsigned char status, BT_CAP[8]; + unsigned char status; static enum bt_states last_printed = BT_STATE_PRINTME; int i; @@ -504,12 +498,6 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time) if (status & BT_H_BUSY) /* clear a leftover H_BUSY */ BT_CONTROL(BT_H_BUSY); - bt->timeout = bt->BT_CAP_req2rsp; - - /* Read BT capabilities if it hasn't been done yet */ - if (!bt->BT_CAP_outreqs) - BT_STATE_CHANGE(BT_STATE_CAPABILITIES_BEGIN, - SI_SM_CALL_WITHOUT_DELAY); BT_SI_SM_RETURN(SI_SM_IDLE); case BT_STATE_XACTION_START: @@ -614,37 +602,6 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time) BT_STATE_CHANGE(BT_STATE_XACTION_START, SI_SM_CALL_WITH_DELAY); - /* - * Get BT Capabilities, using timing of upper level state machine. - * Set outreqs to prevent infinite loop on timeout. - */ - case BT_STATE_CAPABILITIES_BEGIN: - bt->BT_CAP_outreqs = 1; - { - unsigned char GetBT_CAP[] = { 0x18, 0x36 }; - bt->state = BT_STATE_IDLE; - bt_start_transaction(bt, GetBT_CAP, sizeof(GetBT_CAP)); - } - bt->complete = BT_STATE_CAPABILITIES_END; - BT_STATE_CHANGE(BT_STATE_XACTION_START, - SI_SM_CALL_WITH_DELAY); - - case BT_STATE_CAPABILITIES_END: - i = bt_get_result(bt, BT_CAP, sizeof(BT_CAP)); - bt_init_data(bt, bt->io); - if ((i == 8) && !BT_CAP[2]) { - bt->BT_CAP_outreqs = BT_CAP[3]; - bt->BT_CAP_req2rsp = BT_CAP[6] * USEC_PER_SEC; - bt->BT_CAP_retries = BT_CAP[7]; - } else - printk(KERN_WARNING "IPMI BT: using default values\n"); - if (!bt->BT_CAP_outreqs) - bt->BT_CAP_outreqs = 1; - printk(KERN_WARNING "IPMI BT: req2rsp=%ld secs retries=%d\n", - bt->BT_CAP_req2rsp / USEC_PER_SEC, bt->BT_CAP_retries); - bt->timeout = bt->BT_CAP_req2rsp; - return SI_SM_CALL_WITHOUT_DELAY; - default: /* should never occur */ return error_recovery(bt, status, @@ -655,6 +612,11 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time) static int bt_detect(struct si_sm_data *bt) { + unsigned char GetBT_CAP[] = { 0x18, 0x36 }; + unsigned char BT_CAP[8]; + enum si_sm_result smi_result; + int rv; + /* * It's impossible for the BT status and interrupt registers to be * all 1's, (assuming a properly functioning, self-initialized BMC) @@ -665,6 +627,48 @@ static int bt_detect(struct si_sm_data *bt) if ((BT_STATUS == 0xFF) && (BT_INTMASK_R == 0xFF)) return 1; reset_flags(bt); + + /* + * Try getting the BT capabilities here. + */ + rv = bt_start_transaction(bt, GetBT_CAP, sizeof(GetBT_CAP)); + if (rv) { + dev_warn(bt->io->dev, + "Can't start capabilities transaction: %d\n", rv); + goto out_no_bt_cap; + } + + smi_result = SI_SM_CALL_WITHOUT_DELAY; + for (;;) { + if (smi_result == SI_SM_CALL_WITH_DELAY || + smi_result == SI_SM_CALL_WITH_TICK_DELAY) { + schedule_timeout_uninterruptible(1); + smi_result = bt_event(bt, jiffies_to_usecs(1)); + } else if (smi_result == SI_SM_CALL_WITHOUT_DELAY) { + smi_result = bt_event(bt, 0); + } else + break; + } + + rv = bt_get_result(bt, BT_CAP, sizeof(BT_CAP)); + bt_init_data(bt, bt->io); + if (rv < 8) { + dev_warn(bt->io->dev, "bt cap response too short: %d\n", rv); + goto out_no_bt_cap; + } + + if (BT_CAP[2]) { + dev_warn(bt->io->dev, "Error fetching bt cap: %x\n", BT_CAP[2]); +out_no_bt_cap: + dev_warn(bt->io->dev, "using default values\n"); + } else { + bt->BT_CAP_req2rsp = BT_CAP[6] * USEC_PER_SEC; + bt->BT_CAP_retries = BT_CAP[7]; + } + + dev_info(bt->io->dev, "req2rsp=%ld secs retries=%d\n", + bt->BT_CAP_req2rsp / USEC_PER_SEC, bt->BT_CAP_retries); + return 0; } From 0745dde62835be7e2afe62fcdb482fcad79cb743 Mon Sep 17 00:00:00 2001 From: Corey Minyard Date: Thu, 30 Aug 2018 13:06:21 -0500 Subject: [PATCH 0422/1762] ipmi: Fix I2C client removal in the SSIF driver The SSIF driver was removing any client that came in through the platform interface, but it should only remove clients that it added. On a failure in the probe function, this could result in the following oops when the driver is removed and the client gets unregistered twice: CPU: 107 PID: 30266 Comm: rmmod Not tainted 4.18.0+ #80 Hardware name: Cavium Inc. Saber/Saber, BIOS Cavium reference firmware version 7.0 08/04/2018 pstate: 60400009 (nZCv daif +PAN -UAO) pc : kernfs_find_ns+0x28/0x120 lr : kernfs_find_and_get_ns+0x40/0x60 sp : ffff00002310fb50 x29: ffff00002310fb50 x28: ffff800a8240f800 x27: 0000000000000000 x26: 0000000000000000 x25: 0000000056000000 x24: ffff000009073000 x23: ffff000008998b38 x22: 0000000000000000 x21: ffff800ed86de820 x20: 0000000000000000 x19: ffff00000913a1d8 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 5300737265766972 x13: 643d4d4554535953 x12: 0000000000000030 x11: 0000000000000030 x10: 0101010101010101 x9 : ffff800ea06cc3f9 x8 : 0000000000000000 x7 : 0000000000000141 x6 : ffff000009073000 x5 : ffff800adb706b00 x4 : 0000000000000000 x3 : 00000000ffffffff x2 : 0000000000000000 x1 : ffff000008998b38 x0 : ffff000008356760 Process rmmod (pid: 30266, stack limit = 0x00000000e218418d) Call trace: kernfs_find_ns+0x28/0x120 kernfs_find_and_get_ns+0x40/0x60 sysfs_unmerge_group+0x2c/0x6c dpm_sysfs_remove+0x34/0x70 device_del+0x58/0x30c device_unregister+0x30/0x7c i2c_unregister_device+0x84/0x90 [i2c_core] ssif_platform_remove+0x38/0x98 [ipmi_ssif] platform_drv_remove+0x2c/0x6c device_release_driver_internal+0x168/0x1f8 driver_detach+0x50/0xbc bus_remove_driver+0x74/0xe8 driver_unregister+0x34/0x5c platform_driver_unregister+0x20/0x2c cleanup_ipmi_ssif+0x50/0xd82c [ipmi_ssif] __arm64_sys_delete_module+0x1b4/0x220 el0_svc_handler+0x104/0x160 el0_svc+0x8/0xc Code: aa1e03e0 aa0203f6 aa0103f7 d503201f (7940e280) ---[ end trace 09f0e34cce8e2d8c ]--- Kernel panic - not syncing: Fatal exception SMP: stopping secondary CPUs Kernel Offset: disabled CPU features: 0x23800c38 So track the clients that the SSIF driver adds and only remove those. Reported-by: George Cherian Signed-off-by: Corey Minyard Tested-by: George Cherian Cc: # 4.14.x --- drivers/char/ipmi/ipmi_ssif.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c index c12edc8e91df..265d6a6583bc 100644 --- a/drivers/char/ipmi/ipmi_ssif.c +++ b/drivers/char/ipmi/ipmi_ssif.c @@ -181,6 +181,8 @@ struct ssif_addr_info { struct device *dev; struct i2c_client *client; + struct i2c_client *added_client; + struct mutex clients_mutex; struct list_head clients; @@ -1641,15 +1643,7 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id) out: if (rv) { - /* - * Note that if addr_info->client is assigned, we - * leave it. The i2c client hangs around even if we - * return a failure here, and the failure here is not - * propagated back to the i2c code. This seems to be - * design intent, strange as it may be. But if we - * don't leave it, ssif_platform_remove will not remove - * the client like it should. - */ + addr_info->client = NULL; dev_err(&client->dev, "Unable to start IPMI SSIF: %d\n", rv); kfree(ssif_info); } @@ -1669,7 +1663,8 @@ static int ssif_adapter_handler(struct device *adev, void *opaque) if (adev->type != &i2c_adapter_type) return 0; - i2c_new_device(to_i2c_adapter(adev), &addr_info->binfo); + addr_info->added_client = i2c_new_device(to_i2c_adapter(adev), + &addr_info->binfo); if (!addr_info->adapter_name) return 1; /* Only try the first I2C adapter by default. */ @@ -1842,7 +1837,7 @@ static int ssif_platform_remove(struct platform_device *dev) return 0; mutex_lock(&ssif_infos_mutex); - i2c_unregister_device(addr_info->client); + i2c_unregister_device(addr_info->added_client); list_del(&addr_info->link); kfree(addr_info); From ef394f3fbecbe61d69450ad8cf0fa8f713c8ce8f Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Fri, 31 Aug 2018 14:34:02 +0200 Subject: [PATCH 0423/1762] regulator: da9063: fix DT probing with constraints Commit 1c892e38ce59 ("regulator: da9063: Handle less LDOs on DA9063L") reordered the da9063_regulator_info[] array, but not the DA9063_ID_* regulator ids and not the da9063_matches[] array, because ids are used as indices in the array initializer. This mismatch between regulator id and da9063_regulator_info[] array index causes the driver probe to fail because constraints from DT are not applied to the correct regulator: da9063 0-0058: Device detected (chip-ID: 0x61, var-ID: 0x50) DA9063_BMEM: Bringing 900000uV into 3300000-3300000uV DA9063_LDO9: Bringing 3300000uV into 2500000-2500000uV DA9063_LDO1: Bringing 900000uV into 3300000-3300000uV DA9063_LDO1: failed to apply 3300000-3300000uV constraint(-22) This patch reorders the DA9063_ID_* as apparently intended, and with them the entries in the da90630_matches[] array. Fixes: 1c892e38ce59 ("regulator: da9063: Handle less LDOs on DA9063L") Signed-off-by: Philipp Zabel Reviewed-by: Geert Uytterhoeven Reviewed-by: Marek Vasut Signed-off-by: Mark Brown --- include/linux/mfd/da9063/pdata.h | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/include/linux/mfd/da9063/pdata.h b/include/linux/mfd/da9063/pdata.h index 8a125701ef7b..50bed4f89c1a 100644 --- a/include/linux/mfd/da9063/pdata.h +++ b/include/linux/mfd/da9063/pdata.h @@ -21,7 +21,7 @@ /* * Regulator configuration */ -/* DA9063 regulator IDs */ +/* DA9063 and DA9063L regulator IDs */ enum { /* BUCKs */ DA9063_ID_BCORE1, @@ -37,18 +37,20 @@ enum { DA9063_ID_BMEM_BIO_MERGED, /* When two BUCKs are merged, they cannot be reused separately */ - /* LDOs */ - DA9063_ID_LDO1, - DA9063_ID_LDO2, + /* LDOs on both DA9063 and DA9063L */ DA9063_ID_LDO3, - DA9063_ID_LDO4, - DA9063_ID_LDO5, - DA9063_ID_LDO6, DA9063_ID_LDO7, DA9063_ID_LDO8, DA9063_ID_LDO9, - DA9063_ID_LDO10, DA9063_ID_LDO11, + + /* DA9063-only LDOs */ + DA9063_ID_LDO1, + DA9063_ID_LDO2, + DA9063_ID_LDO4, + DA9063_ID_LDO5, + DA9063_ID_LDO6, + DA9063_ID_LDO10, }; /* Regulators platform data */ From ec94c177bf3700ce44c53c375a3fb4c347f2b08f Mon Sep 17 00:00:00 2001 From: Andreas Dannenberg Date: Fri, 31 Aug 2018 09:47:13 -0500 Subject: [PATCH 0424/1762] ASoC: codecs: tas5720: add TAS5722 specific volume control The TAS5722 supports modifying volume in 0.25dB steps (as opposed to 0.5dB steps on the TAS5720). Introduce a custom mixer control that allows taking advantage of this finer output volume granularity. Also add custom getters/setters for access as the TAS5722 digital volume controls are split over two registers. Signed-off-by: Andreas Dannenberg Signed-off-by: Andrew F. Davis Signed-off-by: Mark Brown --- sound/soc/codecs/tas5720.c | 88 ++++++++++++++++++++++++++++++++++---- 1 file changed, 80 insertions(+), 8 deletions(-) diff --git a/sound/soc/codecs/tas5720.c b/sound/soc/codecs/tas5720.c index ae3d032ac35a..3c469112477a 100644 --- a/sound/soc/codecs/tas5720.c +++ b/sound/soc/codecs/tas5720.c @@ -485,15 +485,56 @@ static const DECLARE_TLV_DB_RANGE(dac_analog_tlv, ); /* - * DAC digital volumes. From -103.5 to 24 dB in 0.5 dB steps. Note that - * setting the gain below -100 dB (register value <0x7) is effectively a MUTE - * as per device datasheet. + * DAC digital volumes. From -103.5 to 24 dB in 0.5 dB or 0.25 dB steps + * depending on the device. Note that setting the gain below -100 dB + * (register value <0x7) is effectively a MUTE as per device datasheet. + * + * Note that for the TAS5722 the digital volume controls are actually split + * over two registers, so we need custom getters/setters for access. */ -static DECLARE_TLV_DB_SCALE(dac_tlv, -10350, 50, 0); +static DECLARE_TLV_DB_SCALE(tas5720_dac_tlv, -10350, 50, 0); +static DECLARE_TLV_DB_SCALE(tas5722_dac_tlv, -10350, 25, 0); + +static int tas5722_volume_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + unsigned int val; + + snd_soc_component_read(component, TAS5720_VOLUME_CTRL_REG, &val); + ucontrol->value.integer.value[0] = val << 1; + + snd_soc_component_read(component, TAS5722_DIGITAL_CTRL2_REG, &val); + ucontrol->value.integer.value[0] |= val & TAS5722_VOL_CONTROL_LSB; + + return 0; +} + +static int tas5722_volume_set(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + unsigned int sel = ucontrol->value.integer.value[0]; + + snd_soc_component_write(component, TAS5720_VOLUME_CTRL_REG, sel >> 1); + snd_soc_component_update_bits(component, TAS5722_DIGITAL_CTRL2_REG, + TAS5722_VOL_CONTROL_LSB, sel); + + return 0; +} static const struct snd_kcontrol_new tas5720_snd_controls[] = { SOC_SINGLE_TLV("Speaker Driver Playback Volume", - TAS5720_VOLUME_CTRL_REG, 0, 0xff, 0, dac_tlv), + TAS5720_VOLUME_CTRL_REG, 0, 0xff, 0, tas5720_dac_tlv), + SOC_SINGLE_TLV("Speaker Driver Analog Gain", TAS5720_ANALOG_CTRL_REG, + TAS5720_ANALOG_GAIN_SHIFT, 3, 0, dac_analog_tlv), +}; + +static const struct snd_kcontrol_new tas5722_snd_controls[] = { + SOC_SINGLE_EXT_TLV("Speaker Driver Playback Volume", + 0, 0, 511, 0, + tas5722_volume_get, tas5722_volume_set, + tas5722_dac_tlv), SOC_SINGLE_TLV("Speaker Driver Analog Gain", TAS5720_ANALOG_CTRL_REG, TAS5720_ANALOG_GAIN_SHIFT, 3, 0, dac_analog_tlv), }; @@ -527,6 +568,23 @@ static const struct snd_soc_component_driver soc_component_dev_tas5720 = { .non_legacy_dai_naming = 1, }; +static const struct snd_soc_component_driver soc_component_dev_tas5722 = { + .probe = tas5720_codec_probe, + .remove = tas5720_codec_remove, + .suspend = tas5720_suspend, + .resume = tas5720_resume, + .controls = tas5722_snd_controls, + .num_controls = ARRAY_SIZE(tas5722_snd_controls), + .dapm_widgets = tas5720_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(tas5720_dapm_widgets), + .dapm_routes = tas5720_audio_map, + .num_dapm_routes = ARRAY_SIZE(tas5720_audio_map), + .idle_bias_on = 1, + .use_pmdown_time = 1, + .endianness = 1, + .non_legacy_dai_naming = 1, +}; + /* PCM rates supported by the TAS5720 driver */ #define TAS5720_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\ SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) @@ -613,9 +671,23 @@ static int tas5720_probe(struct i2c_client *client, dev_set_drvdata(dev, data); - ret = devm_snd_soc_register_component(&client->dev, - &soc_component_dev_tas5720, - tas5720_dai, ARRAY_SIZE(tas5720_dai)); + switch (id->driver_data) { + case TAS5720: + ret = devm_snd_soc_register_component(&client->dev, + &soc_component_dev_tas5720, + tas5720_dai, + ARRAY_SIZE(tas5720_dai)); + break; + case TAS5722: + ret = devm_snd_soc_register_component(&client->dev, + &soc_component_dev_tas5722, + tas5720_dai, + ARRAY_SIZE(tas5720_dai)); + break; + default: + dev_err(dev, "unexpected private driver data\n"); + return -EINVAL; + } if (ret < 0) { dev_err(dev, "failed to register component: %d\n", ret); return ret; From db658f40cae33a9fddbd9ca5c35c6bbfbd593a82 Mon Sep 17 00:00:00 2001 From: Andreas Dannenberg Date: Fri, 31 Aug 2018 09:47:14 -0500 Subject: [PATCH 0425/1762] ASoC: codecs: tas5720: add TAS5722 TDM slot width setting support Unlike the TAS5720, the TAS5722 can be configured to utilize 16-bit wide slots in TDM mode. This can help easing audio clocking/frequency requirements. Signed-off-by: Andreas Dannenberg Signed-off-by: Andrew F. Davis Signed-off-by: Mark Brown --- sound/soc/codecs/tas5720.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/sound/soc/codecs/tas5720.c b/sound/soc/codecs/tas5720.c index 3c469112477a..6bd0e5d5347f 100644 --- a/sound/soc/codecs/tas5720.c +++ b/sound/soc/codecs/tas5720.c @@ -152,6 +152,7 @@ static int tas5720_set_dai_tdm_slot(struct snd_soc_dai *dai, int slots, int slot_width) { struct snd_soc_component *component = dai->component; + struct tas5720_data *tas5720 = snd_soc_component_get_drvdata(component); unsigned int first_slot; int ret; @@ -185,6 +186,20 @@ static int tas5720_set_dai_tdm_slot(struct snd_soc_dai *dai, if (ret < 0) goto error_snd_soc_component_update_bits; + /* Configure TDM slot width. This is only applicable to TAS5722. */ + switch (tas5720->devtype) { + case TAS5722: + ret = snd_soc_component_update_bits(component, TAS5722_DIGITAL_CTRL2_REG, + TAS5722_TDM_SLOT_16B, + slot_width == 16 ? + TAS5722_TDM_SLOT_16B : 0); + if (ret < 0) + goto error_snd_soc_component_update_bits; + break; + default: + break; + } + return 0; error_snd_soc_component_update_bits: From 6f18bcdaa24bae39c746b57b95af19ff3c41b17f Mon Sep 17 00:00:00 2001 From: Matt Flax Date: Thu, 30 Aug 2018 09:38:00 +1000 Subject: [PATCH 0426/1762] ASoC: cs4265: SOC_SINGLE register value error fix The cs4265 driver declares the "MMTLR Data Switch" register setting with a 0 register value rather then the 0x12 register (CS4265_SPDIF_CTL2). This incorrect value causes alsamixer to fault with the output : cannot load mixer controls: Input/output error This patch corrects the register value. alsamixer now runs. Signed-off-by: Matt Flax Signed-off-by: Mark Brown --- sound/soc/codecs/cs4265.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/sound/soc/codecs/cs4265.c b/sound/soc/codecs/cs4265.c index 275677de669f..15b4ae04870f 100644 --- a/sound/soc/codecs/cs4265.c +++ b/sound/soc/codecs/cs4265.c @@ -157,8 +157,7 @@ static const struct snd_kcontrol_new cs4265_snd_controls[] = { SOC_SINGLE("Validity Bit Control Switch", CS4265_SPDIF_CTL2, 3, 1, 0), SOC_ENUM("SPDIF Mono/Stereo", spdif_mono_stereo_enum), - SOC_SINGLE("MMTLR Data Switch", 0, - 1, 1, 0), + SOC_SINGLE("MMTLR Data Switch", CS4265_SPDIF_CTL2, 0, 1, 0), SOC_ENUM("Mono Channel Select", spdif_mono_select_enum), SND_SOC_BYTES("C Data Buffer", CS4265_C_DATA_BUFF, 24), }; From be47e75eb1419ffc1d9c26230963fd5fa3055097 Mon Sep 17 00:00:00 2001 From: Matt Flax Date: Thu, 30 Aug 2018 09:38:01 +1000 Subject: [PATCH 0427/1762] ASoC: cs4265: Add native 32bit I2S transport The cs4265 uses 32 bit transport on the I2S bus. This patch enables native 32 bit mode for machine drivers which use this sound card driver. Signed-off-by: Matt Flax Reviewed-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/codecs/cs4265.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/cs4265.c b/sound/soc/codecs/cs4265.c index 15b4ae04870f..17d7e6f0dcdb 100644 --- a/sound/soc/codecs/cs4265.c +++ b/sound/soc/codecs/cs4265.c @@ -495,7 +495,8 @@ static int cs4265_set_bias_level(struct snd_soc_component *component, SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000) #define CS4265_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | \ - SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE) + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE) static const struct snd_soc_dai_ops cs4265_ops = { .hw_params = cs4265_pcm_hw_params, From f853d6b3ba345297974d877d8ed0f4a91eaca739 Mon Sep 17 00:00:00 2001 From: Matt Flax Date: Thu, 30 Aug 2018 09:38:02 +1000 Subject: [PATCH 0428/1762] ASoC: cs4265: Add a S/PDIF enable switch This patch adds a S/PDIF enable switch as a SOC_SINGLE. Signed-off-by: Matt Flax Reviewed-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/codecs/cs4265.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/codecs/cs4265.c b/sound/soc/codecs/cs4265.c index 17d7e6f0dcdb..d9eebf6af7a8 100644 --- a/sound/soc/codecs/cs4265.c +++ b/sound/soc/codecs/cs4265.c @@ -154,6 +154,7 @@ static const struct snd_kcontrol_new cs4265_snd_controls[] = { SOC_SINGLE("E to F Buffer Disable Switch", CS4265_SPDIF_CTL1, 6, 1, 0), SOC_ENUM("C Data Access", cam_mode_enum), + SOC_SINGLE("SPDIF Switch", CS4265_SPDIF_CTL2, 5, 1, 1), SOC_SINGLE("Validity Bit Control Switch", CS4265_SPDIF_CTL2, 3, 1, 0), SOC_ENUM("SPDIF Mono/Stereo", spdif_mono_stereo_enum), From e664de680b10c13d65f982bcb9cfe56096e1de55 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:08:09 +0000 Subject: [PATCH 0429/1762] ASoC: simple_card_utils: support snd_soc_dai_link_component style for codec Current ASoC is supporting snd_soc_dai_link_component for binding, it is more useful than current legacy style. Currently only codec is supporting it as multicodec (= codecs). CPU will support multi style in the future. We want to have it on Platform too in the future. If all Codec/CPU/Platform are replaced into snd_soc_dai_link_component style, we can remove legacy complex style. This patch supports snd_soc_dai_link_component style for simple_card_utils for codec. [current] struct snd_soc_dai_link { ... *cpu_name; *cpu_of_node; *cpu_dai_name; *codec_name; *codec_of_node; *codec_dai_name; *codecs; num_codecs; *platform_name; *platform_of_node; ... } [in the future] struct snd_soc_dai_link { ... *cpus num_cpus; *codecs; num_codecs; *platform; ... } Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/simple_card_utils.h | 27 +++++++++++------ sound/soc/generic/simple-card-utils.c | 42 +++++++++++++++++++++++++-- 2 files changed, 58 insertions(+), 11 deletions(-) diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h index 8bc5e2d8b13c..3b5bd6e76f88 100644 --- a/include/sound/simple_card_utils.h +++ b/include/sound/simple_card_utils.h @@ -51,29 +51,35 @@ int asoc_simple_card_parse_card_name(struct snd_soc_card *card, #define asoc_simple_card_parse_clk_cpu(dev, node, dai_link, simple_dai) \ asoc_simple_card_parse_clk(dev, node, dai_link->cpu_of_node, simple_dai, \ - dai_link->cpu_dai_name) + dai_link->cpu_dai_name, NULL) #define asoc_simple_card_parse_clk_codec(dev, node, dai_link, simple_dai) \ asoc_simple_card_parse_clk(dev, node, dai_link->codec_of_node, simple_dai,\ - dai_link->codec_dai_name) + dai_link->codec_dai_name, dai_link->codecs) int asoc_simple_card_parse_clk(struct device *dev, struct device_node *node, struct device_node *dai_of_node, struct asoc_simple_dai *simple_dai, - const char *name); + const char *dai_name, + struct snd_soc_dai_link_component *dlc); int asoc_simple_card_clk_enable(struct asoc_simple_dai *dai); void asoc_simple_card_clk_disable(struct asoc_simple_dai *dai); #define asoc_simple_card_parse_cpu(node, dai_link, \ list_name, cells_name, is_single_link) \ - asoc_simple_card_parse_dai(node, &dai_link->cpu_of_node, \ + asoc_simple_card_parse_dai(node, NULL, \ + &dai_link->cpu_of_node, \ &dai_link->cpu_dai_name, list_name, cells_name, is_single_link) #define asoc_simple_card_parse_codec(node, dai_link, list_name, cells_name) \ - asoc_simple_card_parse_dai(node, &dai_link->codec_of_node, \ - &dai_link->codec_dai_name, list_name, cells_name, NULL) + asoc_simple_card_parse_dai(node, dai_link->codecs, \ + &dai_link->codec_of_node, \ + &dai_link->codec_dai_name, \ + list_name, cells_name, NULL) #define asoc_simple_card_parse_platform(node, dai_link, list_name, cells_name) \ - asoc_simple_card_parse_dai(node, &dai_link->platform_of_node, \ + asoc_simple_card_parse_dai(node, NULL, \ + &dai_link->platform_of_node, \ NULL, list_name, cells_name, NULL) int asoc_simple_card_parse_dai(struct device_node *node, + struct snd_soc_dai_link_component *dlc, struct device_node **endpoint_np, const char **dai_name, const char *list_name, @@ -81,12 +87,15 @@ int asoc_simple_card_parse_dai(struct device_node *node, int *is_single_links); #define asoc_simple_card_parse_graph_cpu(ep, dai_link) \ - asoc_simple_card_parse_graph_dai(ep, &dai_link->cpu_of_node, \ + asoc_simple_card_parse_graph_dai(ep, NULL, \ + &dai_link->cpu_of_node, \ &dai_link->cpu_dai_name) #define asoc_simple_card_parse_graph_codec(ep, dai_link) \ - asoc_simple_card_parse_graph_dai(ep, &dai_link->codec_of_node, \ + asoc_simple_card_parse_graph_dai(ep, dai_link->codecs, \ + &dai_link->codec_of_node, \ &dai_link->codec_dai_name) int asoc_simple_card_parse_graph_dai(struct device_node *ep, + struct snd_soc_dai_link_component *dlc, struct device_node **endpoint_np, const char **dai_name); diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index d3f3f0fec74c..73c0a904f32e 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -173,11 +173,23 @@ int asoc_simple_card_parse_clk(struct device *dev, struct device_node *node, struct device_node *dai_of_node, struct asoc_simple_dai *simple_dai, - const char *name) + const char *dai_name, + struct snd_soc_dai_link_component *dlc) { struct clk *clk; u32 val; + /* + * Use snd_soc_dai_link_component instead of legacy style. + * It is only for codec, but cpu will be supported in the future. + * see + * soc-core.c :: snd_soc_init_multicodec() + */ + if (dlc) { + dai_of_node = dlc->of_node; + dai_name = dlc->dai_name; + } + /* * Parse dai->sysclk come from "clocks = <&xxx>" * (if system has common clock) @@ -200,7 +212,7 @@ int asoc_simple_card_parse_clk(struct device *dev, if (of_property_read_bool(node, "system-clock-direction-out")) simple_dai->clk_direction = SND_SOC_CLOCK_OUT; - dev_dbg(dev, "%s : sysclk = %d, direction %d\n", name, + dev_dbg(dev, "%s : sysclk = %d, direction %d\n", dai_name, simple_dai->sysclk, simple_dai->clk_direction); return 0; @@ -208,6 +220,7 @@ int asoc_simple_card_parse_clk(struct device *dev, EXPORT_SYMBOL_GPL(asoc_simple_card_parse_clk); int asoc_simple_card_parse_dai(struct device_node *node, + struct snd_soc_dai_link_component *dlc, struct device_node **dai_of_node, const char **dai_name, const char *list_name, @@ -220,6 +233,17 @@ int asoc_simple_card_parse_dai(struct device_node *node, if (!node) return 0; + /* + * Use snd_soc_dai_link_component instead of legacy style. + * It is only for codec, but cpu will be supported in the future. + * see + * soc-core.c :: snd_soc_init_multicodec() + */ + if (dlc) { + dai_name = &dlc->dai_name; + dai_of_node = &dlc->of_node; + } + /* * Get node via "sound-dai = <&phandle port>" * it will be used as xxx_of_node on soc_bind_dai_link() @@ -278,6 +302,7 @@ static int asoc_simple_card_get_dai_id(struct device_node *ep) } int asoc_simple_card_parse_graph_dai(struct device_node *ep, + struct snd_soc_dai_link_component *dlc, struct device_node **dai_of_node, const char **dai_name) { @@ -285,6 +310,17 @@ int asoc_simple_card_parse_graph_dai(struct device_node *ep, struct of_phandle_args args; int ret; + /* + * Use snd_soc_dai_link_component instead of legacy style. + * It is only for codec, but cpu will be supported in the future. + * see + * soc-core.c :: snd_soc_init_multicodec() + */ + if (dlc) { + dai_name = &dlc->dai_name; + dai_of_node = &dlc->of_node; + } + if (!ep) return 0; if (!dai_name) @@ -374,6 +410,8 @@ int asoc_simple_card_clean_reference(struct snd_soc_card *card) num_links++, dai_link++) { of_node_put(dai_link->cpu_of_node); of_node_put(dai_link->codec_of_node); + if (dai_link->codecs) + of_node_put(dai_link->codecs->of_node); } return 0; } From 710af9196ce614ee02185c2ec55e617a71843183 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:08:24 +0000 Subject: [PATCH 0430/1762] ASoC: simple-card: support snd_soc_dai_link_component style for codec Current ASoC is supporting snd_soc_dai_link_component for binding, it is more useful than current legacy style. Currently only codec is supporting it as multicodec (= codecs). CPU will support multi style in the future. We want to have it on Platform too in the future. If all Codec/CPU/Platform are replaced into snd_soc_dai_link_component style, we can remove legacy complex style. This patch supports snd_soc_dai_link_component style for simple-card for codec. [current] struct snd_soc_dai_link { ... *cpu_name; *cpu_of_node; *cpu_dai_name; *codec_name; *codec_of_node; *codec_dai_name; *codecs; num_codecs; *platform_name; *platform_of_node; ... } [in the future] struct snd_soc_dai_link { ... *cpus num_cpus; *codecs; num_codecs; *platform; ... } Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/simple-card.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index 64bf3560c1d1..67a56f32f983 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -20,6 +20,7 @@ struct simple_card_data { struct simple_dai_props { struct asoc_simple_dai cpu_dai; struct asoc_simple_dai codec_dai; + struct snd_soc_dai_link_component codecs; /* single codec */ unsigned int mclk_fs; } *dai_props; unsigned int mclk_fs; @@ -234,7 +235,7 @@ static int asoc_simple_card_dai_link_of(struct device_node *node, ret = asoc_simple_card_set_dailink_name(dev, dai_link, "%s-%s", dai_link->cpu_dai_name, - dai_link->codec_dai_name); + dai_link->codecs->dai_name); if (ret < 0) goto dai_link_of_err; @@ -363,7 +364,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; struct snd_soc_card *card; - int num, ret; + int num, ret, i; /* Get the number of DAI links */ if (np && of_get_child_by_name(np, PREFIX "dai-link")) @@ -381,6 +382,17 @@ static int asoc_simple_card_probe(struct platform_device *pdev) if (!dai_props || !dai_link) return -ENOMEM; + /* + * Use snd_soc_dai_link_component instead of legacy style + * It is codec only. but cpu/platform will be supported in the future. + * see + * soc-core.c :: snd_soc_init_multicodec() + */ + for (i = 0; i < num; i++) { + dai_link[i].codecs = &dai_props[i].codecs; + dai_link[i].num_codecs = 1; + } + priv->dai_props = dai_props; priv->dai_link = dai_link; @@ -403,6 +415,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev) } else { struct asoc_simple_card_info *cinfo; + struct snd_soc_dai_link_component *codecs; cinfo = dev->platform_data; if (!cinfo) { @@ -419,13 +432,15 @@ static int asoc_simple_card_probe(struct platform_device *pdev) return -EINVAL; } + codecs = dai_link->codecs; + codecs->name = cinfo->codec; + codecs->dai_name = cinfo->codec_dai.name; + card->name = (cinfo->card) ? cinfo->card : cinfo->name; dai_link->name = cinfo->name; dai_link->stream_name = cinfo->name; dai_link->platform_name = cinfo->platform; - dai_link->codec_name = cinfo->codec; dai_link->cpu_dai_name = cinfo->cpu_dai.name; - dai_link->codec_dai_name = cinfo->codec_dai.name; dai_link->dai_fmt = cinfo->daifmt; dai_link->init = asoc_simple_card_dai_init; memcpy(&priv->dai_props->cpu_dai, &cinfo->cpu_dai, From 5ece10ab99205d11419e3d2e6c7ac0e382d952b5 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:08:38 +0000 Subject: [PATCH 0431/1762] ASoC: simple-scu-card: use simple_dai_props simple-card and simple-scu-card are very similar driver, but using different feature. Thus we are keeping synchronization on these 2 drivers style, because it is easy to confirm / check. Current big difference between these 2 drivers are "dai_props" on simple_card_data (= priv). It will be difficult to keep synchronize if we will add new feature on simple-scu-card. Thus, this patch synchronize it. [simple] struct simple_card_data { ... struct simple_dai_props { ... } *dai_props; ... }; [simple scu] struct simple_card_data { ... struct asoc_simple_dai *dai_props; ... }; Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/simple-scu-card.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/sound/soc/generic/simple-scu-card.c b/sound/soc/generic/simple-scu-card.c index 16a83bc51e0e..09be02e7416f 100644 --- a/sound/soc/generic/simple-scu-card.c +++ b/sound/soc/generic/simple-scu-card.c @@ -22,7 +22,9 @@ struct simple_card_data { struct snd_soc_card snd_card; struct snd_soc_codec_conf codec_conf; - struct asoc_simple_dai *dai_props; + struct simple_dai_props { + struct asoc_simple_dai dai; + } *dai_props; struct snd_soc_dai_link *dai_link; struct asoc_simple_card_data adata; }; @@ -40,20 +42,20 @@ static int asoc_simple_card_startup(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); - struct asoc_simple_dai *dai_props = + struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num); - return asoc_simple_card_clk_enable(dai_props); + return asoc_simple_card_clk_enable(&dai_props->dai); } static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); - struct asoc_simple_dai *dai_props = + struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num); - asoc_simple_card_clk_disable(dai_props); + asoc_simple_card_clk_disable(&dai_props->dai); } static const struct snd_soc_ops asoc_simple_card_ops = { @@ -66,7 +68,7 @@ static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd) struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); struct snd_soc_dai *dai; struct snd_soc_dai_link *dai_link; - struct asoc_simple_dai *dai_props; + struct simple_dai_props *dai_props; int num = rtd->num; dai_link = simple_priv_to_link(priv, num); @@ -75,7 +77,7 @@ static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd) rtd->cpu_dai : rtd->codec_dai; - return asoc_simple_card_init_dai(dai, dai_props); + return asoc_simple_card_init_dai(dai, &dai_props->dai); } static int asoc_simple_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, @@ -95,7 +97,7 @@ static int asoc_simple_card_dai_link_of(struct device_node *np, { struct device *dev = simple_priv_to_dev(priv); struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx); - struct asoc_simple_dai *dai_props = simple_priv_to_props(priv, idx); + struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx); struct snd_soc_card *card = simple_priv_to_card(priv); int ret; @@ -116,7 +118,7 @@ static int asoc_simple_card_dai_link_of(struct device_node *np, if (ret) return ret; - ret = asoc_simple_card_parse_clk_cpu(dev, np, dai_link, dai_props); + ret = asoc_simple_card_parse_clk_cpu(dev, np, dai_link, &dai_props->dai); if (ret < 0) return ret; @@ -141,7 +143,7 @@ static int asoc_simple_card_dai_link_of(struct device_node *np, if (ret < 0) return ret; - ret = asoc_simple_card_parse_clk_codec(dev, np, dai_link, dai_props); + ret = asoc_simple_card_parse_clk_codec(dev, np, dai_link, &dai_props->dai); if (ret < 0) return ret; @@ -157,7 +159,7 @@ static int asoc_simple_card_dai_link_of(struct device_node *np, PREFIX "prefix"); } - ret = asoc_simple_card_of_parse_tdm(np, dai_props); + ret = asoc_simple_card_of_parse_tdm(np, &dai_props->dai); if (ret) return ret; @@ -230,7 +232,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev) { struct simple_card_data *priv; struct snd_soc_dai_link *dai_link; - struct asoc_simple_dai *dai_props; + struct simple_dai_props *dai_props; struct snd_soc_card *card; struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; From 2289cc1c78574653d30b80696327646ba340babf Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:08:51 +0000 Subject: [PATCH 0432/1762] ASoC: simple-scu-card: support snd_soc_dai_link_component style for codec Current ASoC is supporting snd_soc_dai_link_component for binding, it is more useful than current legacy style. Currently only codec is supporting it as multicodec (= codecs). CPU will support multi style in the future. We want to have it on Platform too in the future. If all Codec/CPU/Platform are replaced into snd_soc_dai_link_component style, we can remove legacy complex style. This patch supports snd_soc_dai_link_component style for simple-scu-card for codec. [current] struct snd_soc_dai_link { ... *cpu_name; *cpu_of_node; *cpu_dai_name; *codec_name; *codec_of_node; *codec_dai_name; *codecs; num_codecs; *platform_name; *platform_of_node; ... } [in the future] struct snd_soc_dai_link { ... *cpus num_cpus; *codecs; num_codecs; *platform; ... } Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/simple-scu-card.c | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) diff --git a/sound/soc/generic/simple-scu-card.c b/sound/soc/generic/simple-scu-card.c index 09be02e7416f..91efc8653746 100644 --- a/sound/soc/generic/simple-scu-card.c +++ b/sound/soc/generic/simple-scu-card.c @@ -24,6 +24,7 @@ struct simple_card_data { struct snd_soc_codec_conf codec_conf; struct simple_dai_props { struct asoc_simple_dai dai; + struct snd_soc_dai_link_component codecs; } *dai_props; struct snd_soc_dai_link *dai_link; struct asoc_simple_card_data adata; @@ -103,11 +104,13 @@ static int asoc_simple_card_dai_link_of(struct device_node *np, if (is_fe) { int is_single_links = 0; + struct snd_soc_dai_link_component *codecs; /* BE is dummy */ - dai_link->codec_of_node = NULL; - dai_link->codec_dai_name = "snd-soc-dummy-dai"; - dai_link->codec_name = "snd-soc-dummy"; + codecs = dai_link->codecs; + codecs->of_node = NULL; + codecs->dai_name = "snd-soc-dummy-dai"; + codecs->name = "snd-soc-dummy"; /* FE settings */ dai_link->dynamic = 1; @@ -149,13 +152,13 @@ static int asoc_simple_card_dai_link_of(struct device_node *np, ret = asoc_simple_card_set_dailink_name(dev, dai_link, "be.%s", - dai_link->codec_dai_name); + dai_link->codecs->dai_name); if (ret < 0) return ret; snd_soc_of_parse_audio_prefix(card, &priv->codec_conf, - dai_link->codec_of_node, + dai_link->codecs->of_node, PREFIX "prefix"); } @@ -236,7 +239,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev) struct snd_soc_card *card; struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; - int num, ret; + int num, ret, i; /* Allocate the private data */ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); @@ -250,6 +253,17 @@ static int asoc_simple_card_probe(struct platform_device *pdev) if (!dai_props || !dai_link) return -ENOMEM; + /* + * Use snd_soc_dai_link_component instead of legacy style + * It is codec only. but cpu/platform will be supported in the future. + * see + * soc-core.c :: snd_soc_init_multicodec() + */ + for (i = 0; i < num; i++) { + dai_link[i].codecs = &dai_props[i].codecs; + dai_link[i].num_codecs = 1; + } + priv->dai_props = dai_props; priv->dai_link = dai_link; From 8e6746db2e66c30e59a49ac15eb0c54d51acfb4b Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:09:05 +0000 Subject: [PATCH 0433/1762] ASoC: audio-graph-card: support snd_soc_dai_link_component style for codec Current ASoC is supporting snd_soc_dai_link_component for binding, it is more useful than current legacy style. Currently only codec is supporting it as multicodec (= codecs). CPU will support multi style in the future. We want to have it on Platform too in the future. If all Codec/CPU/Platform are replaced into snd_soc_dai_link_component style, we can remove legacy complex style. This patch supports snd_soc_dai_link_component style for audio-graph-card for codec. [current] struct snd_soc_dai_link { ... *cpu_name; *cpu_of_node; *cpu_dai_name; *codec_name; *codec_of_node; *codec_dai_name; *codecs; num_codecs; *platform_name; *platform_of_node; ... } [in the future] struct snd_soc_dai_link { ... *cpus num_cpus; *codecs; num_codecs; *platform; ... } Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/audio-graph-card.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c index 2094d2c8919f..5b2ecf8c2652 100644 --- a/sound/soc/generic/audio-graph-card.c +++ b/sound/soc/generic/audio-graph-card.c @@ -25,6 +25,7 @@ struct graph_card_data { struct graph_dai_props { struct asoc_simple_dai cpu_dai; struct asoc_simple_dai codec_dai; + struct snd_soc_dai_link_component codecs; /* single codec */ unsigned int mclk_fs; } *dai_props; unsigned int mclk_fs; @@ -213,7 +214,7 @@ static int asoc_graph_card_dai_link_of(struct device_node *cpu_port, ret = asoc_simple_card_set_dailink_name(dev, dai_link, "%s-%s", dai_link->cpu_dai_name, - dai_link->codec_dai_name); + dai_link->codecs->dai_name); if (ret < 0) goto dai_link_of_err; @@ -299,7 +300,7 @@ static int asoc_graph_card_probe(struct platform_device *pdev) struct graph_dai_props *dai_props; struct device *dev = &pdev->dev; struct snd_soc_card *card; - int num, ret; + int num, ret, i; /* Allocate the private data and the DAI link array */ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); @@ -315,6 +316,17 @@ static int asoc_graph_card_probe(struct platform_device *pdev) if (!dai_props || !dai_link) return -ENOMEM; + /* + * Use snd_soc_dai_link_component instead of legacy style + * It is codec only. but cpu/platform will be supported in the future. + * see + * soc-core.c :: snd_soc_init_multicodec() + */ + for (i = 0; i < num; i++) { + dai_link[i].codecs = &dai_props[i].codecs; + dai_link[i].num_codecs = 1; + } + priv->pa_gpio = devm_gpiod_get_optional(dev, "pa", GPIOD_OUT_LOW); if (IS_ERR(priv->pa_gpio)) { ret = PTR_ERR(priv->pa_gpio); From 1340739d4de4d9d99f1134180f95b42cc4eda438 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:09:20 +0000 Subject: [PATCH 0434/1762] ASoC: audio-graph-scu-card: use simple_dai_props audi-graph-card and audio-graph-scu-card are very similar driver, but using different feature. Thus we are keeping synchronization on these 2 drivers style, because it is easy to confirm / check. Current big difference between these 2 drivers are "dai_props" on graph_card_data (= priv). It will be difficult to keep synchronize if we will add new feature on audio-graph-scu-card. Thus, this patch synchronize it. [audio-graph] struct graph_card_data { ... struct graph_dai_props { ... } *dai_props; ... }; [audio-graph-scu] struct graph_card_data { ... struct asoc_simple_dai *dai_props; ... }; Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/audio-graph-scu-card.c | 26 +++++++++++++----------- 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/sound/soc/generic/audio-graph-scu-card.c b/sound/soc/generic/audio-graph-scu-card.c index 92882e392d6c..043938fece42 100644 --- a/sound/soc/generic/audio-graph-scu-card.c +++ b/sound/soc/generic/audio-graph-scu-card.c @@ -25,7 +25,9 @@ struct graph_card_data { struct snd_soc_card snd_card; struct snd_soc_codec_conf codec_conf; - struct asoc_simple_dai *dai_props; + struct graph_dai_props { + struct asoc_simple_dai dai; + } *dai_props; struct snd_soc_dai_link *dai_link; struct asoc_simple_card_data adata; }; @@ -39,18 +41,18 @@ static int asoc_graph_card_startup(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card); - struct asoc_simple_dai *dai_props = graph_priv_to_props(priv, rtd->num); + struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num); - return asoc_simple_card_clk_enable(dai_props); + return asoc_simple_card_clk_enable(&dai_props->dai); } static void asoc_graph_card_shutdown(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card); - struct asoc_simple_dai *dai_props = graph_priv_to_props(priv, rtd->num); + struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num); - asoc_simple_card_clk_disable(dai_props); + asoc_simple_card_clk_disable(&dai_props->dai); } static const struct snd_soc_ops asoc_graph_card_ops = { @@ -63,7 +65,7 @@ static int asoc_graph_card_dai_init(struct snd_soc_pcm_runtime *rtd) struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card); struct snd_soc_dai *dai; struct snd_soc_dai_link *dai_link; - struct asoc_simple_dai *dai_props; + struct graph_dai_props *dai_props; int num = rtd->num; dai_link = graph_priv_to_link(priv, num); @@ -72,7 +74,7 @@ static int asoc_graph_card_dai_init(struct snd_soc_pcm_runtime *rtd) rtd->cpu_dai : rtd->codec_dai; - return asoc_simple_card_init_dai(dai, dai_props); + return asoc_simple_card_init_dai(dai, &dai_props->dai); } static int asoc_graph_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, @@ -92,7 +94,7 @@ static int asoc_graph_card_dai_link_of(struct device_node *ep, { struct device *dev = graph_priv_to_dev(priv); struct snd_soc_dai_link *dai_link = graph_priv_to_link(priv, idx); - struct asoc_simple_dai *dai_props = graph_priv_to_props(priv, idx); + struct graph_dai_props *dai_props = graph_priv_to_props(priv, idx); struct snd_soc_card *card = graph_priv_to_card(priv); int ret; @@ -110,7 +112,7 @@ static int asoc_graph_card_dai_link_of(struct device_node *ep, if (ret) return ret; - ret = asoc_simple_card_parse_clk_cpu(dev, ep, dai_link, dai_props); + ret = asoc_simple_card_parse_clk_cpu(dev, ep, dai_link, &dai_props->dai); if (ret < 0) return ret; @@ -137,7 +139,7 @@ static int asoc_graph_card_dai_link_of(struct device_node *ep, if (ret < 0) return ret; - ret = asoc_simple_card_parse_clk_codec(dev, ep, dai_link, dai_props); + ret = asoc_simple_card_parse_clk_codec(dev, ep, dai_link, &dai_props->dai); if (ret < 0) return ret; @@ -153,7 +155,7 @@ static int asoc_graph_card_dai_link_of(struct device_node *ep, "prefix"); } - ret = asoc_simple_card_of_parse_tdm(ep, dai_props); + ret = asoc_simple_card_of_parse_tdm(ep, &dai_props->dai); if (ret) return ret; @@ -331,7 +333,7 @@ static int asoc_graph_card_probe(struct platform_device *pdev) { struct graph_card_data *priv; struct snd_soc_dai_link *dai_link; - struct asoc_simple_dai *dai_props; + struct graph_dai_props *dai_props; struct device *dev = &pdev->dev; struct snd_soc_card *card; int num, ret; From 04f7267aa8d17773917580951c740496e8059cba Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:09:33 +0000 Subject: [PATCH 0435/1762] ASoC: audio-graph-scu-card: support snd_soc_dai_link_component style for codec Current ASoC is supporting snd_soc_dai_link_component for binding, it is more useful than current legacy style. Currently only codec is supporting it as multicodec (= codecs). CPU will support multi style in the future. We want to have it on Platform too in the future. If all Codec/CPU/Platform are replaced into snd_soc_dai_link_component style, we can remove legacy complex style. This patch supports snd_soc_dai_link_component style for audio-graph-scu-card for codec. [current] struct snd_soc_dai_link { ... *cpu_name; *cpu_of_node; *cpu_dai_name; *codec_name; *codec_of_node; *codec_dai_name; *codecs; num_codecs; *platform_name; *platform_of_node; ... } [in the future] struct snd_soc_dai_link { ... *cpus num_cpus; *codecs; num_codecs; *platform; ... } Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/audio-graph-scu-card.c | 27 ++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) diff --git a/sound/soc/generic/audio-graph-scu-card.c b/sound/soc/generic/audio-graph-scu-card.c index 043938fece42..eeb3c1975fe3 100644 --- a/sound/soc/generic/audio-graph-scu-card.c +++ b/sound/soc/generic/audio-graph-scu-card.c @@ -27,6 +27,7 @@ struct graph_card_data { struct snd_soc_codec_conf codec_conf; struct graph_dai_props { struct asoc_simple_dai dai; + struct snd_soc_dai_link_component codecs; } *dai_props; struct snd_soc_dai_link *dai_link; struct asoc_simple_card_data adata; @@ -99,10 +100,13 @@ static int asoc_graph_card_dai_link_of(struct device_node *ep, int ret; if (is_fe) { + struct snd_soc_dai_link_component *codecs; + /* BE is dummy */ - dai_link->codec_of_node = NULL; - dai_link->codec_dai_name = "snd-soc-dummy-dai"; - dai_link->codec_name = "snd-soc-dummy"; + codecs = dai_link->codecs; + codecs->of_node = NULL; + codecs->dai_name = "snd-soc-dummy-dai"; + codecs->name = "snd-soc-dummy"; /* FE settings */ dai_link->dynamic = 1; @@ -145,13 +149,13 @@ static int asoc_graph_card_dai_link_of(struct device_node *ep, ret = asoc_simple_card_set_dailink_name(dev, dai_link, "be.%s", - dai_link->codec_dai_name); + dai_link->codecs->dai_name); if (ret < 0) return ret; snd_soc_of_parse_audio_prefix(card, &priv->codec_conf, - dai_link->codec_of_node, + dai_link->codecs->of_node, "prefix"); } @@ -336,7 +340,7 @@ static int asoc_graph_card_probe(struct platform_device *pdev) struct graph_dai_props *dai_props; struct device *dev = &pdev->dev; struct snd_soc_card *card; - int num, ret; + int num, ret, i; /* Allocate the private data and the DAI link array */ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); @@ -352,6 +356,17 @@ static int asoc_graph_card_probe(struct platform_device *pdev) if (!dai_props || !dai_link) return -ENOMEM; + /* + * Use snd_soc_dai_link_component instead of legacy style + * It is codec only. but cpu/platform will be supported in the future. + * see + * soc-core.c :: snd_soc_init_multicodec() + */ + for (i = 0; i < num; i++) { + dai_link[i].codecs = &dai_props[i].codecs; + dai_link[i].num_codecs = 1; + } + priv->dai_props = dai_props; priv->dai_link = dai_link; From 2967e5ea19ec041104fd43da4cb07e8e76a39e55 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:09:47 +0000 Subject: [PATCH 0436/1762] ASoC: simple-card-util: remove dai_link compatible code for codec Now no simple/audio cards are using legacy dai_link style for codec. Let's remove compatible code. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/simple-card-utils.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index 73c0a904f32e..e7057be957e1 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -409,9 +409,7 @@ int asoc_simple_card_clean_reference(struct snd_soc_card *card) num_links < card->num_links; num_links++, dai_link++) { of_node_put(dai_link->cpu_of_node); - of_node_put(dai_link->codec_of_node); - if (dai_link->codecs) - of_node_put(dai_link->codecs->of_node); + of_node_put(dai_link->codecs->of_node); } return 0; } From daecf46ee0e5f0fb2349e20af53c4653e2afc440 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:10:08 +0000 Subject: [PATCH 0437/1762] ASoC: soc-core: use snd_soc_dai_link_component for platform Current struct snd_soc_dai_link is supporting multicodec, and it is supporting legacy style of codec_name codec_of_node code_dai_name This is handled as single entry of multicodec. We don't have multicpu support yet, but in the future we will. In such case, we can use snd_soc_dai_link_component for both cpu/codec. Then the code will be more simple and readble. As next step, we want to use it for platform, too. This patch adds snd_soc_dai_link_component style for platform. We might have multiplatform support in the future, but we don't know yet. To avoid un-known issue / complex code, this patch supports just single-platform as 1st step. If we could use snd_soc_dai_link_component for all CPU/Codec/Platform, we will switch to new style, and remove legacy code. This is prepare for it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/soc.h | 2 ++ sound/soc/soc-core.c | 48 +++++++++++++++++++++++++++++++++++++------- 2 files changed, 43 insertions(+), 7 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index 41cec42fb456..96c19aabf21b 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -915,6 +915,8 @@ struct snd_soc_dai_link { */ const char *platform_name; struct device_node *platform_of_node; + struct snd_soc_dai_link_component *platform; + int id; /* optional ID for machine driver link identification */ const struct snd_soc_pcm_stream *params; diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 473eefe8658e..2a73630d0680 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -892,8 +892,8 @@ static int soc_bind_dai_link(struct snd_soc_card *card, rtd->codec_dai = codec_dais[0]; /* if there's no platform we match on the empty platform */ - platform_name = dai_link->platform_name; - if (!platform_name && !dai_link->platform_of_node) + platform_name = dai_link->platform->name; + if (!platform_name && !dai_link->platform->of_node) platform_name = "snd-soc-dummy"; /* find one from the set of registered platforms */ @@ -902,8 +902,8 @@ static int soc_bind_dai_link(struct snd_soc_card *card, if (!platform_of_node && component->dev->parent->of_node) platform_of_node = component->dev->parent->of_node; - if (dai_link->platform_of_node) { - if (platform_of_node != dai_link->platform_of_node) + if (dai_link->platform->of_node) { + if (platform_of_node != dai_link->platform->of_node) continue; } else { if (strcmp(component->name, platform_name)) @@ -1015,6 +1015,31 @@ static void soc_remove_dai_links(struct snd_soc_card *card) } } +static int snd_soc_init_platform(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link) +{ + /* + * FIXME + * + * this function should be removed in the future + */ + /* convert Legacy platform link */ + if (dai_link->platform) + return 0; + + dai_link->platform = devm_kzalloc(card->dev, + sizeof(struct snd_soc_dai_link_component), + GFP_KERNEL); + if (!dai_link->platform) + return -ENOMEM; + + dai_link->platform->name = dai_link->platform_name; + dai_link->platform->of_node = dai_link->platform_of_node; + dai_link->platform->dai_name = NULL; + + return 0; +} + static int snd_soc_init_multicodec(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { @@ -1047,6 +1072,12 @@ static int soc_init_dai_link(struct snd_soc_card *card, { int i, ret; + ret = snd_soc_init_platform(card, link); + if (ret) { + dev_err(card->dev, "ASoC: failed to init multiplatform\n"); + return ret; + } + ret = snd_soc_init_multicodec(card, link); if (ret) { dev_err(card->dev, "ASoC: failed to init multicodec\n"); @@ -1076,13 +1107,12 @@ static int soc_init_dai_link(struct snd_soc_card *card, * Platform may be specified by either name or OF node, but * can be left unspecified, and a dummy platform will be used. */ - if (link->platform_name && link->platform_of_node) { + if (link->platform->name && link->platform->of_node) { dev_err(card->dev, "ASoC: Both platform name/of_node are set for %s\n", link->name); return -EINVAL; } - /* * CPU device may be specified by either name or OF node, but * can be left unspecified, and will be matched based on DAI @@ -1917,7 +1947,11 @@ static void soc_check_tplg_fes(struct snd_soc_card *card) card->dai_link[i].name); /* override platform component */ - dai_link->platform_name = component->name; + if (snd_soc_init_platform(card, dai_link) < 0) { + dev_err(card->dev, "init platform error"); + continue; + } + dai_link->platform->name = component->name; /* convert non BE into BE */ dai_link->no_pcm = 1; From 868cdb4690699b04ca4d09b1e0178dfc680dbd8e Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:10:20 +0000 Subject: [PATCH 0438/1762] ASoC: simple-card-util: support snd_soc_dai_link_component style for platform Current ASoC is supporting snd_soc_dai_link_component for binding, it is more useful than current legacy style. Currently only codec is supporting it as multicodec (= codecs). CPU will support multi style in the future. We want to have it on Platform too in the future. If all Codec/CPU/Platform are replaced into snd_soc_dai_link_component style, we can remove legacy complex style. This patch supports snd_soc_dai_link_component style for simple-card-util for platform. [current] struct snd_soc_dai_link { ... *cpu_name; *cpu_of_node; *cpu_dai_name; *codec_name; *codec_of_node; *codec_dai_name; *codecs; num_codecs; *platform_name; *platform_of_node; ... } [in the future] struct snd_soc_dai_link { ... *cpus num_cpus; *codecs; num_codecs; *platform; ... } Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/simple_card_utils.h | 2 +- sound/soc/generic/simple-card-utils.c | 11 ++++++++--- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h index 3b5bd6e76f88..fb0318f9b10f 100644 --- a/include/sound/simple_card_utils.h +++ b/include/sound/simple_card_utils.h @@ -75,7 +75,7 @@ void asoc_simple_card_clk_disable(struct asoc_simple_dai *dai); &dai_link->codec_dai_name, \ list_name, cells_name, NULL) #define asoc_simple_card_parse_platform(node, dai_link, list_name, cells_name) \ - asoc_simple_card_parse_dai(node, NULL, \ + asoc_simple_card_parse_dai(node, dai_link->platform, \ &dai_link->platform_of_node, \ NULL, list_name, cells_name, NULL) int asoc_simple_card_parse_dai(struct device_node *node, diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index e7057be957e1..644cd62ba027 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -376,10 +376,15 @@ EXPORT_SYMBOL_GPL(asoc_simple_card_init_dai); int asoc_simple_card_canonicalize_dailink(struct snd_soc_dai_link *dai_link) { /* Assumes platform == cpu */ - if (!dai_link->platform_of_node) - dai_link->platform_of_node = dai_link->cpu_of_node; - + if (dai_link->platform) { + if (!dai_link->platform->of_node) + dai_link->platform->of_node = dai_link->cpu_of_node; + } else { + if (!dai_link->platform_of_node) + dai_link->platform_of_node = dai_link->cpu_of_node; + } return 0; + } EXPORT_SYMBOL_GPL(asoc_simple_card_canonicalize_dailink); From e58f41e41185c6906bd11c73c4e76aa5fc3ea685 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:10:33 +0000 Subject: [PATCH 0439/1762] ASoC: simple-card: support snd_soc_dai_link_component style for platform Current ASoC is supporting snd_soc_dai_link_component for binding, it is more useful than current legacy style. Currently only codec is supporting it as multicodec (= codecs). CPU will support multi style in the future. We want to have it on Platform too in the future. If all Codec/CPU/Platform are replaced into snd_soc_dai_link_component style, we can remove legacy complex style. This patch supports snd_soc_dai_link_component style for simple-card for platform. [current] struct snd_soc_dai_link { ... *cpu_name; *cpu_of_node; *cpu_dai_name; *codec_name; *codec_of_node; *codec_dai_name; *codecs; num_codecs; *platform_name; *platform_of_node; ... } [in the future] struct snd_soc_dai_link { ... *cpus num_cpus; *codecs; num_codecs; *platform; ... } Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/simple-card.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index 67a56f32f983..5a3f59aa4ba5 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -21,6 +21,7 @@ struct simple_card_data { struct asoc_simple_dai cpu_dai; struct asoc_simple_dai codec_dai; struct snd_soc_dai_link_component codecs; /* single codec */ + struct snd_soc_dai_link_component platform; unsigned int mclk_fs; } *dai_props; unsigned int mclk_fs; @@ -391,6 +392,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev) for (i = 0; i < num; i++) { dai_link[i].codecs = &dai_props[i].codecs; dai_link[i].num_codecs = 1; + dai_link[i].platform = &dai_props[i].platform; } priv->dai_props = dai_props; @@ -416,6 +418,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev) } else { struct asoc_simple_card_info *cinfo; struct snd_soc_dai_link_component *codecs; + struct snd_soc_dai_link_component *platform; cinfo = dev->platform_data; if (!cinfo) { @@ -436,10 +439,12 @@ static int asoc_simple_card_probe(struct platform_device *pdev) codecs->name = cinfo->codec; codecs->dai_name = cinfo->codec_dai.name; + platform = dai_link->platform; + platform->name = cinfo->platform; + card->name = (cinfo->card) ? cinfo->card : cinfo->name; dai_link->name = cinfo->name; dai_link->stream_name = cinfo->name; - dai_link->platform_name = cinfo->platform; dai_link->cpu_dai_name = cinfo->cpu_dai.name; dai_link->dai_fmt = cinfo->daifmt; dai_link->init = asoc_simple_card_dai_init; From 24f3bead9b72cbd91956be28ab6a74d51bdd4c6b Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:10:46 +0000 Subject: [PATCH 0440/1762] ASoC: simple-scu-card: support snd_soc_dai_link_component style for platform Current ASoC is supporting snd_soc_dai_link_component for binding, it is more useful than current legacy style. Currently only codec is supporting it as multicodec (= codecs). CPU will support multi style in the future. We want to have it on Platform too in the future. If all Codec/CPU/Platform are replaced into snd_soc_dai_link_component style, we can remove legacy complex style. This patch supports snd_soc_dai_link_component style for simple-scu-card for platform. [current] struct snd_soc_dai_link { ... *cpu_name; *cpu_of_node; *cpu_dai_name; *codec_name; *codec_of_node; *codec_dai_name; *codecs; num_codecs; *platform_name; *platform_of_node; ... } [in the future] struct snd_soc_dai_link { ... *cpus num_cpus; *codecs; num_codecs; *platform; ... } Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/simple-scu-card.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/generic/simple-scu-card.c b/sound/soc/generic/simple-scu-card.c index 91efc8653746..85b46f0eae0f 100644 --- a/sound/soc/generic/simple-scu-card.c +++ b/sound/soc/generic/simple-scu-card.c @@ -25,6 +25,7 @@ struct simple_card_data { struct simple_dai_props { struct asoc_simple_dai dai; struct snd_soc_dai_link_component codecs; + struct snd_soc_dai_link_component platform; } *dai_props; struct snd_soc_dai_link *dai_link; struct asoc_simple_card_data adata; @@ -262,6 +263,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev) for (i = 0; i < num; i++) { dai_link[i].codecs = &dai_props[i].codecs; dai_link[i].num_codecs = 1; + dai_link[i].platform = &dai_props[i].platform; } priv->dai_props = dai_props; From 46c73187f2986e40b427485bb8f4401aa9143ed0 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:10:58 +0000 Subject: [PATCH 0441/1762] ASoC: audio-graph-card: support snd_soc_dai_link_component style for platform Current ASoC is supporting snd_soc_dai_link_component for binding, it is more useful than current legacy style. Currently only codec is supporting it as multicodec (= codecs). CPU will support multi style in the future. We want to have it on Platform too in the future. If all Codec/CPU/Platform are replaced into snd_soc_dai_link_component style, we can remove legacy complex style. This patch supports snd_soc_dai_link_component style for audio-graph-card for platform. [current] struct snd_soc_dai_link { ... *cpu_name; *cpu_of_node; *cpu_dai_name; *codec_name; *codec_of_node; *codec_dai_name; *codecs; num_codecs; *platform_name; *platform_of_node; ... } [in the future] struct snd_soc_dai_link { ... *cpus num_cpus; *codecs; num_codecs; *platform; ... } Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/audio-graph-card.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c index 5b2ecf8c2652..fb6635f8d5d7 100644 --- a/sound/soc/generic/audio-graph-card.c +++ b/sound/soc/generic/audio-graph-card.c @@ -26,6 +26,7 @@ struct graph_card_data { struct asoc_simple_dai cpu_dai; struct asoc_simple_dai codec_dai; struct snd_soc_dai_link_component codecs; /* single codec */ + struct snd_soc_dai_link_component platform; unsigned int mclk_fs; } *dai_props; unsigned int mclk_fs; @@ -325,6 +326,7 @@ static int asoc_graph_card_probe(struct platform_device *pdev) for (i = 0; i < num; i++) { dai_link[i].codecs = &dai_props[i].codecs; dai_link[i].num_codecs = 1; + dai_link[i].platform = &dai_props[i].platform; } priv->pa_gpio = devm_gpiod_get_optional(dev, "pa", GPIOD_OUT_LOW); From 77b9b84132f0b9ca0802a25277eb7be49713661f Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:11:12 +0000 Subject: [PATCH 0442/1762] ASoC: audio-graph-scu-card: support snd_soc_dai_link_component style for platform Current ASoC is supporting snd_soc_dai_link_component for binding, it is more useful than current legacy style. Currently only codec is supporting it as multicodec (= codecs). CPU will support multi style in the future. We want to have it on Platform too in the future. If all Codec/CPU/Platform are replaced into snd_soc_dai_link_component style, we can remove legacy complex style. This patch supports snd_soc_dai_link_component style for audio-graph-scu-card for platform. [current] struct snd_soc_dai_link { ... *cpu_name; *cpu_of_node; *cpu_dai_name; *codec_name; *codec_of_node; *codec_dai_name; *codecs; num_codecs; *platform_name; *platform_of_node; ... } [in the future] struct snd_soc_dai_link { ... *cpus num_cpus; *codecs; num_codecs; *platform; ... } Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/audio-graph-scu-card.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/generic/audio-graph-scu-card.c b/sound/soc/generic/audio-graph-scu-card.c index eeb3c1975fe3..b83bb31021a9 100644 --- a/sound/soc/generic/audio-graph-scu-card.c +++ b/sound/soc/generic/audio-graph-scu-card.c @@ -28,6 +28,7 @@ struct graph_card_data { struct graph_dai_props { struct asoc_simple_dai dai; struct snd_soc_dai_link_component codecs; + struct snd_soc_dai_link_component platform; } *dai_props; struct snd_soc_dai_link *dai_link; struct asoc_simple_card_data adata; @@ -365,6 +366,7 @@ static int asoc_graph_card_probe(struct platform_device *pdev) for (i = 0; i < num; i++) { dai_link[i].codecs = &dai_props[i].codecs; dai_link[i].num_codecs = 1; + dai_link[i].platform = &dai_props[i].platform; } priv->dai_props = dai_props; From c2f0898b86486a459fa8c91d194f3b699498c0c1 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 31 Aug 2018 03:11:25 +0000 Subject: [PATCH 0443/1762] ASoC: simple-card-util: remove dai_link compatible code for platform Now no simple/audio cards are using legacy dai_link style for platform. Let's remove compatible code. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/simple-card-utils.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index 644cd62ba027..b400dbf1f834 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -376,13 +376,9 @@ EXPORT_SYMBOL_GPL(asoc_simple_card_init_dai); int asoc_simple_card_canonicalize_dailink(struct snd_soc_dai_link *dai_link) { /* Assumes platform == cpu */ - if (dai_link->platform) { - if (!dai_link->platform->of_node) - dai_link->platform->of_node = dai_link->cpu_of_node; - } else { - if (!dai_link->platform_of_node) - dai_link->platform_of_node = dai_link->cpu_of_node; - } + if (!dai_link->platform->of_node) + dai_link->platform->of_node = dai_link->cpu_of_node; + return 0; } From 342db04ae71273322f0011384a9ed414df8bdae4 Mon Sep 17 00:00:00 2001 From: Jann Horn Date: Tue, 28 Aug 2018 17:49:01 +0200 Subject: [PATCH 0444/1762] x86/dumpstack: Don't dump kernel memory based on usermode RIP show_opcodes() is used both for dumping kernel instructions and for dumping user instructions. If userspace causes #PF by jumping to a kernel address, show_opcodes() can be reached with regs->ip controlled by the user, pointing to kernel code. Make sure that userspace can't trick us into dumping kernel memory into dmesg. Fixes: 7cccf0725cf7 ("x86/dumpstack: Add a show_ip() function") Signed-off-by: Jann Horn Signed-off-by: Thomas Gleixner Reviewed-by: Kees Cook Reviewed-by: Borislav Petkov Cc: "H. Peter Anvin" Cc: Andy Lutomirski Cc: security@kernel.org Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180828154901.112726-1-jannh@google.com --- arch/x86/include/asm/stacktrace.h | 2 +- arch/x86/kernel/dumpstack.c | 16 +++++++++++++--- arch/x86/mm/fault.c | 2 +- 3 files changed, 15 insertions(+), 5 deletions(-) diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h index b6dc698f992a..f335aad404a4 100644 --- a/arch/x86/include/asm/stacktrace.h +++ b/arch/x86/include/asm/stacktrace.h @@ -111,6 +111,6 @@ static inline unsigned long caller_frame_pointer(void) return (unsigned long)frame; } -void show_opcodes(u8 *rip, const char *loglvl); +void show_opcodes(struct pt_regs *regs, const char *loglvl); void show_ip(struct pt_regs *regs, const char *loglvl); #endif /* _ASM_X86_STACKTRACE_H */ diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index 1596e6bfea6f..f56895106ccf 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -90,14 +90,24 @@ static void printk_stack_address(unsigned long address, int reliable, * Thus, the 2/3rds prologue and 64 byte OPCODE_BUFSIZE is just a random * guesstimate in attempt to achieve all of the above. */ -void show_opcodes(u8 *rip, const char *loglvl) +void show_opcodes(struct pt_regs *regs, const char *loglvl) { #define PROLOGUE_SIZE 42 #define EPILOGUE_SIZE 21 #define OPCODE_BUFSIZE (PROLOGUE_SIZE + 1 + EPILOGUE_SIZE) u8 opcodes[OPCODE_BUFSIZE]; + unsigned long prologue = regs->ip - PROLOGUE_SIZE; + bool bad_ip; - if (probe_kernel_read(opcodes, rip - PROLOGUE_SIZE, OPCODE_BUFSIZE)) { + /* + * Make sure userspace isn't trying to trick us into dumping kernel + * memory by pointing the userspace instruction pointer at it. + */ + bad_ip = user_mode(regs) && + __chk_range_not_ok(prologue, OPCODE_BUFSIZE, TASK_SIZE_MAX); + + if (bad_ip || probe_kernel_read(opcodes, (u8 *)prologue, + OPCODE_BUFSIZE)) { printk("%sCode: Bad RIP value.\n", loglvl); } else { printk("%sCode: %" __stringify(PROLOGUE_SIZE) "ph <%02x> %" @@ -113,7 +123,7 @@ void show_ip(struct pt_regs *regs, const char *loglvl) #else printk("%sRIP: %04x:%pS\n", loglvl, (int)regs->cs, (void *)regs->ip); #endif - show_opcodes((u8 *)regs->ip, loglvl); + show_opcodes(regs, loglvl); } void show_iret_regs(struct pt_regs *regs) diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index b9123c497e0a..47bebfe6efa7 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -837,7 +837,7 @@ show_signal_msg(struct pt_regs *regs, unsigned long error_code, printk(KERN_CONT "\n"); - show_opcodes((u8 *)regs->ip, loglvl); + show_opcodes(regs, loglvl); } static void From 829fe4aa9ac16417a904ad1de1307de906854bcf Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Wed, 29 Aug 2018 20:43:17 +0100 Subject: [PATCH 0445/1762] x86: Allow generating user-space headers without a compiler When bootstrapping an architecture, it's usual to generate the kernel's user-space headers (make headers_install) before building a compiler. Move the compiler check (for asm goto support) to the archprepare target so that it is only done when building code for the target. Fixes: e501ce957a78 ("x86: Force asm-goto") Reported-by: Helmut Grohne Signed-off-by: Ben Hutchings Signed-off-by: Thomas Gleixner Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180829194317.GA4765@decadent.org.uk --- arch/x86/Makefile | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 8fc8f94ef5f5..8f6e7eb8ae9f 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -175,10 +175,6 @@ ifdef CONFIG_FUNCTION_GRAPH_TRACER endif endif -ifndef CC_HAVE_ASM_GOTO - $(error Compiler lacks asm-goto support.) -endif - ifeq ($(ACCUMULATE_OUTGOING_ARGS), 1) # This compiler flag is not supported by Clang: KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args,) @@ -300,6 +296,13 @@ PHONY += vdso_install vdso_install: $(Q)$(MAKE) $(build)=arch/x86/entry/vdso $@ +archprepare: checkbin +checkbin: +ifndef CC_HAVE_ASM_GOTO + @echo Compiler lacks asm-goto support. + @exit 1 +endif + archclean: $(Q)rm -rf $(objtree)/arch/i386 $(Q)rm -rf $(objtree)/arch/x86_64 From 4012e77a903d114f915fc607d6d2ed54a3d6c9b1 Mon Sep 17 00:00:00 2001 From: Andy Lutomirski Date: Wed, 29 Aug 2018 08:47:18 -0700 Subject: [PATCH 0446/1762] x86/nmi: Fix NMI uaccess race against CR3 switching A NMI can hit in the middle of context switching or in the middle of switch_mm_irqs_off(). In either case, CR3 might not match current->mm, which could cause copy_from_user_nmi() and friends to read the wrong memory. Fix it by adding a new nmi_uaccess_okay() helper and checking it in copy_from_user_nmi() and in __copy_from_user_nmi()'s callers. Signed-off-by: Andy Lutomirski Signed-off-by: Thomas Gleixner Reviewed-by: Rik van Riel Cc: Nadav Amit Cc: Borislav Petkov Cc: Jann Horn Cc: Peter Zijlstra Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/dd956eba16646fd0b15c3c0741269dfd84452dac.1535557289.git.luto@kernel.org --- arch/x86/events/core.c | 2 +- arch/x86/include/asm/tlbflush.h | 40 +++++++++++++++++++++++++++++++++ arch/x86/lib/usercopy.c | 5 +++++ arch/x86/mm/tlb.c | 7 ++++++ 4 files changed, 53 insertions(+), 1 deletion(-) diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index 5f4829f10129..dfb2f7c0d019 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -2465,7 +2465,7 @@ perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs perf_callchain_store(entry, regs->ip); - if (!current->mm) + if (!nmi_uaccess_okay()) return; if (perf_callchain_user32(regs, entry)) diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h index 29c9da6c62fc..58ce5288878e 100644 --- a/arch/x86/include/asm/tlbflush.h +++ b/arch/x86/include/asm/tlbflush.h @@ -175,8 +175,16 @@ struct tlb_state { * are on. This means that it may not match current->active_mm, * which will contain the previous user mm when we're in lazy TLB * mode even if we've already switched back to swapper_pg_dir. + * + * During switch_mm_irqs_off(), loaded_mm will be set to + * LOADED_MM_SWITCHING during the brief interrupts-off window + * when CR3 and loaded_mm would otherwise be inconsistent. This + * is for nmi_uaccess_okay()'s benefit. */ struct mm_struct *loaded_mm; + +#define LOADED_MM_SWITCHING ((struct mm_struct *)1) + u16 loaded_mm_asid; u16 next_asid; /* last user mm's ctx id */ @@ -246,6 +254,38 @@ struct tlb_state { }; DECLARE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate); +/* + * Blindly accessing user memory from NMI context can be dangerous + * if we're in the middle of switching the current user task or + * switching the loaded mm. It can also be dangerous if we + * interrupted some kernel code that was temporarily using a + * different mm. + */ +static inline bool nmi_uaccess_okay(void) +{ + struct mm_struct *loaded_mm = this_cpu_read(cpu_tlbstate.loaded_mm); + struct mm_struct *current_mm = current->mm; + + VM_WARN_ON_ONCE(!loaded_mm); + + /* + * The condition we want to check is + * current_mm->pgd == __va(read_cr3_pa()). This may be slow, though, + * if we're running in a VM with shadow paging, and nmi_uaccess_okay() + * is supposed to be reasonably fast. + * + * Instead, we check the almost equivalent but somewhat conservative + * condition below, and we rely on the fact that switch_mm_irqs_off() + * sets loaded_mm to LOADED_MM_SWITCHING before writing to CR3. + */ + if (loaded_mm != current_mm) + return false; + + VM_WARN_ON_ONCE(current_mm->pgd != __va(read_cr3_pa())); + + return true; +} + /* Initialize cr4 shadow for this CPU. */ static inline void cr4_init_shadow(void) { diff --git a/arch/x86/lib/usercopy.c b/arch/x86/lib/usercopy.c index c8c6ad0d58b8..3f435d7fca5e 100644 --- a/arch/x86/lib/usercopy.c +++ b/arch/x86/lib/usercopy.c @@ -7,6 +7,8 @@ #include #include +#include + /* * We rely on the nested NMI work to allow atomic faults from the NMI path; the * nested NMI paths are careful to preserve CR2. @@ -19,6 +21,9 @@ copy_from_user_nmi(void *to, const void __user *from, unsigned long n) if (__range_not_ok(from, n, TASK_SIZE)) return n; + if (!nmi_uaccess_okay()) + return n; + /* * Even though this function is typically called from NMI/IRQ context * disable pagefaults so that its behaviour is consistent even when diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c index 9517d1b2a281..e96b99eb800c 100644 --- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -305,6 +305,10 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next, choose_new_asid(next, next_tlb_gen, &new_asid, &need_flush); + /* Let nmi_uaccess_okay() know that we're changing CR3. */ + this_cpu_write(cpu_tlbstate.loaded_mm, LOADED_MM_SWITCHING); + barrier(); + if (need_flush) { this_cpu_write(cpu_tlbstate.ctxs[new_asid].ctx_id, next->context.ctx_id); this_cpu_write(cpu_tlbstate.ctxs[new_asid].tlb_gen, next_tlb_gen); @@ -335,6 +339,9 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next, if (next != &init_mm) this_cpu_write(cpu_tlbstate.last_ctx_id, next->context.ctx_id); + /* Make sure we write CR3 before loaded_mm. */ + barrier(); + this_cpu_write(cpu_tlbstate.loaded_mm, next); this_cpu_write(cpu_tlbstate.loaded_mm_asid, new_asid); } From 919869214b8e0b24926a278e121879f60df485bb Mon Sep 17 00:00:00 2001 From: "Andrew F. Davis" Date: Fri, 31 Aug 2018 10:14:06 -0500 Subject: [PATCH 0447/1762] ASoC: tas6424: Print full register name in error message The current short version of the register name may be ambiguous when another fault register detection is added. Use the full name. While here fix comment about clearing faults, the CLEAR_FAULT register actually only clears sticky bits, which are only warnings, fault bits can only cleared by resolving the fault. Signed-off-by: Andrew F. Davis Signed-off-by: Mark Brown --- sound/soc/codecs/tas6424.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/soc/codecs/tas6424.c b/sound/soc/codecs/tas6424.c index 14999b999fd3..3315ce8a15e6 100644 --- a/sound/soc/codecs/tas6424.c +++ b/sound/soc/codecs/tas6424.c @@ -408,7 +408,7 @@ static void tas6424_fault_check_work(struct work_struct *work) ret = regmap_read(tas6424->regmap, TAS6424_GLOB_FAULT1, ®); if (ret < 0) { - dev_err(dev, "failed to read FAULT1 register: %d\n", ret); + dev_err(dev, "failed to read GLOB_FAULT1 register: %d\n", ret); goto out; } @@ -451,7 +451,7 @@ static void tas6424_fault_check_work(struct work_struct *work) check_global_fault2_reg: ret = regmap_read(tas6424->regmap, TAS6424_GLOB_FAULT2, ®); if (ret < 0) { - dev_err(dev, "failed to read FAULT2 register: %d\n", ret); + dev_err(dev, "failed to read GLOB_FAULT2 register: %d\n", ret); goto out; } @@ -524,7 +524,7 @@ check_warn_reg: /* Store current warn value so we can detect any changes next time */ tas6424->last_warn = reg; - /* Clear any faults by toggling the CLEAR_FAULT control bit */ + /* Clear any warnings by toggling the CLEAR_FAULT control bit */ ret = regmap_write_bits(tas6424->regmap, TAS6424_MISC_CTRL3, TAS6424_CLEAR_FAULT, TAS6424_CLEAR_FAULT); if (ret < 0) From 5fb6589acc3860304436aa436e7ea33712de6fc2 Mon Sep 17 00:00:00 2001 From: "Andrew F. Davis" Date: Fri, 31 Aug 2018 10:14:07 -0500 Subject: [PATCH 0448/1762] ASoC: tas6424: Add channel fault reporting The TAS6426 has a register that reports channel faults such as overcurrent and continuous DC output. Add reporting of this here. Signed-off-by: Andrew F. Davis Signed-off-by: Mark Brown --- sound/soc/codecs/tas6424.c | 52 +++++++++++++++++++++++++++++++++----- sound/soc/codecs/tas6424.h | 10 ++++++++ 2 files changed, 56 insertions(+), 6 deletions(-) diff --git a/sound/soc/codecs/tas6424.c b/sound/soc/codecs/tas6424.c index aac559fffc1a..36aebdb8f55c 100644 --- a/sound/soc/codecs/tas6424.c +++ b/sound/soc/codecs/tas6424.c @@ -41,6 +41,7 @@ struct tas6424_data { struct regmap *regmap; struct regulator_bulk_data supplies[TAS6424_NUM_SUPPLIES]; struct delayed_work fault_check_work; + unsigned int last_cfault; unsigned int last_fault1; unsigned int last_fault2; unsigned int last_warn; @@ -406,6 +407,51 @@ static void tas6424_fault_check_work(struct work_struct *work) unsigned int reg; int ret; + ret = regmap_read(tas6424->regmap, TAS6424_CHANNEL_FAULT, ®); + if (ret < 0) { + dev_err(dev, "failed to read CHANNEL_FAULT register: %d\n", ret); + goto out; + } + + if (!reg) { + tas6424->last_cfault = reg; + goto check_global_fault1_reg; + } + + /* + * Only flag errors once for a given occurrence. This is needed as + * the TAS6424 will take time clearing the fault condition internally + * during which we don't want to bombard the system with the same + * error message over and over. + */ + if ((reg & TAS6424_FAULT_OC_CH1) && !(tas6424->last_cfault & TAS6424_FAULT_OC_CH1)) + dev_crit(dev, "experienced a channel 1 overcurrent fault\n"); + + if ((reg & TAS6424_FAULT_OC_CH2) && !(tas6424->last_cfault & TAS6424_FAULT_OC_CH2)) + dev_crit(dev, "experienced a channel 2 overcurrent fault\n"); + + if ((reg & TAS6424_FAULT_OC_CH3) && !(tas6424->last_cfault & TAS6424_FAULT_OC_CH3)) + dev_crit(dev, "experienced a channel 3 overcurrent fault\n"); + + if ((reg & TAS6424_FAULT_OC_CH4) && !(tas6424->last_cfault & TAS6424_FAULT_OC_CH4)) + dev_crit(dev, "experienced a channel 4 overcurrent fault\n"); + + if ((reg & TAS6424_FAULT_DC_CH1) && !(tas6424->last_cfault & TAS6424_FAULT_DC_CH1)) + dev_crit(dev, "experienced a channel 1 DC fault\n"); + + if ((reg & TAS6424_FAULT_DC_CH2) && !(tas6424->last_cfault & TAS6424_FAULT_DC_CH2)) + dev_crit(dev, "experienced a channel 2 DC fault\n"); + + if ((reg & TAS6424_FAULT_DC_CH3) && !(tas6424->last_cfault & TAS6424_FAULT_DC_CH3)) + dev_crit(dev, "experienced a channel 3 DC fault\n"); + + if ((reg & TAS6424_FAULT_DC_CH4) && !(tas6424->last_cfault & TAS6424_FAULT_DC_CH4)) + dev_crit(dev, "experienced a channel 4 DC fault\n"); + + /* Store current fault1 value so we can detect any changes next time */ + tas6424->last_cfault = reg; + +check_global_fault1_reg: ret = regmap_read(tas6424->regmap, TAS6424_GLOB_FAULT1, ®); if (ret < 0) { dev_err(dev, "failed to read GLOB_FAULT1 register: %d\n", ret); @@ -429,12 +475,6 @@ static void tas6424_fault_check_work(struct work_struct *work) goto check_global_fault2_reg; } - /* - * Only flag errors once for a given occurrence. This is needed as - * the TAS6424 will take time clearing the fault condition internally - * during which we don't want to bombard the system with the same - * error message over and over. - */ if ((reg & TAS6424_FAULT_PVDD_OV) && !(tas6424->last_fault1 & TAS6424_FAULT_PVDD_OV)) dev_crit(dev, "experienced a PVDD overvoltage fault\n"); diff --git a/sound/soc/codecs/tas6424.h b/sound/soc/codecs/tas6424.h index b5958c45ed0e..c67a7835ca66 100644 --- a/sound/soc/codecs/tas6424.h +++ b/sound/soc/codecs/tas6424.h @@ -115,6 +115,16 @@ #define TAS6424_LDGBYPASS_SHIFT 0 #define TAS6424_LDGBYPASS_MASK BIT(TAS6424_LDGBYPASS_SHIFT) +/* TAS6424_GLOB_FAULT1_REG */ +#define TAS6424_FAULT_OC_CH1 BIT(7) +#define TAS6424_FAULT_OC_CH2 BIT(6) +#define TAS6424_FAULT_OC_CH3 BIT(5) +#define TAS6424_FAULT_OC_CH4 BIT(4) +#define TAS6424_FAULT_DC_CH1 BIT(3) +#define TAS6424_FAULT_DC_CH2 BIT(2) +#define TAS6424_FAULT_DC_CH3 BIT(1) +#define TAS6424_FAULT_DC_CH4 BIT(0) + /* TAS6424_GLOB_FAULT1_REG */ #define TAS6424_FAULT_CLOCK BIT(4) #define TAS6424_FAULT_PVDD_OV BIT(3) From eeb89e2bb1ac45b0836d4170e97a988c3a746c62 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 31 Aug 2018 10:05:38 +0200 Subject: [PATCH 0449/1762] x86/efi: Load fixmap GDT in efi_call_phys_epilog() When PTI is enabled on x86-32 the kernel uses the GDT mapped in the fixmap for the simple reason that this address is also mapped for user-space. The efi_call_phys_prolog()/efi_call_phys_epilog() wrappers change the GDT to call EFI runtime services and switch back to the kernel GDT when they return. But the switch-back uses the writable GDT, not the fixmap GDT. When that happened and and the CPU returns to user-space it switches to the user %cr3 and tries to restore user segment registers. This fails because the writable GDT is not mapped in the user page-table, and without a GDT the fault handlers also can't be launched. The result is a triple fault and reboot of the machine. Fix that by restoring the GDT back to the fixmap GDT which is also mapped in the user page-table. Fixes: 7757d607c6b3 x86/pti: ('Allow CONFIG_PAGE_TABLE_ISOLATION for x86_32') Reported-by: Guenter Roeck Signed-off-by: Joerg Roedel Signed-off-by: Thomas Gleixner Tested-by: Guenter Roeck Cc: Ard Biesheuvel Cc: Michal Hocko Cc: Andi Kleen Cc: Linus Torvalds Cc: Dave Hansen Cc: Pavel Machek Cc: hpa@zytor.com Cc: linux-efi@vger.kernel.org Link: https://lkml.kernel.org/r/1535702738-10971-1-git-send-email-joro@8bytes.org --- arch/x86/platform/efi/efi_32.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c index 324b93328b37..05ca14222463 100644 --- a/arch/x86/platform/efi/efi_32.c +++ b/arch/x86/platform/efi/efi_32.c @@ -85,14 +85,10 @@ pgd_t * __init efi_call_phys_prolog(void) void __init efi_call_phys_epilog(pgd_t *save_pgd) { - struct desc_ptr gdt_descr; - - gdt_descr.address = (unsigned long)get_cpu_gdt_rw(0); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); - load_cr3(save_pgd); __flush_tlb_all(); + + load_fixmap_gdt(0); } void __init efi_runtime_update_mappings(void) From 6147b1cf19651c7de297e69108b141fb30aa2349 Mon Sep 17 00:00:00 2001 From: Genki Sky Date: Tue, 28 Aug 2018 23:26:24 -0400 Subject: [PATCH 0450/1762] scripts/setlocalversion: git: Make -dirty check more robust $(git diff-index) relies on the index being refreshed. This refreshing of the index used to happen, but was removed in cdf2bc632ebc ("scripts/setlocalversion on write-protected source tree", 2013-06-14) due to issues with a read-only filesystem. If the index is not refreshed, one runs into problems. E.g. as described in [0], git stores the uid in its index, so even if just the uid has changed (or git is tricked into thinking so), then we will think the tree is dirty. So as in [1], if you package linux-git with a system that uses fakeroot(1), you get a "-dirty" version. Unless you manually $(git update-index --refresh) themselves. The simplest solution seems to be $(git status --porcelain), with an additional flag saying "ignore untracked files". It seems clearer about what it does, and avoids issues regarding cached indexes and writable filesystems, but still has stable output for scripting. [0]: https://public-inbox.org/git/0190ae30-b6c8-2a8b-b1fb-fd9d84e6dfdf@oracle.com/ [1]: https://bbs.archlinux.org/viewtopic.php?id=236702 Signed-off-by: Genki Sky Signed-off-by: Masahiro Yamada --- scripts/setlocalversion | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/setlocalversion b/scripts/setlocalversion index 71f39410691b..79f7dd57d571 100755 --- a/scripts/setlocalversion +++ b/scripts/setlocalversion @@ -74,7 +74,7 @@ scm_version() fi # Check for uncommitted changes - if git diff-index --name-only HEAD | grep -qv "^scripts/package"; then + if git status -uno --porcelain | grep -qv '^.. scripts/package'; then printf '%s' -dirty fi From bc8d2e20a3eb2f8d268ad7bbca878cf3acdcf389 Mon Sep 17 00:00:00 2001 From: Lukas Bulwahn Date: Thu, 30 Aug 2018 11:18:42 +0200 Subject: [PATCH 0451/1762] kconfig: remove a spurious self-assignment The self assignment was probably introduced by an automated code refactoring in commit 694c49a7c01c ("kconfig: drop localization support"). The issue was identified by a self-assign warning when running make menuconfig with clang. Fixes: 694c49a7c01c ("kconfig: drop localization support") Signed-off-by: Lukas Bulwahn Signed-off-by: Masahiro Yamada --- scripts/kconfig/mconf.c | 1 - 1 file changed, 1 deletion(-) diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c index 83b5836615fb..143c05fec161 100644 --- a/scripts/kconfig/mconf.c +++ b/scripts/kconfig/mconf.c @@ -490,7 +490,6 @@ static void build_conf(struct menu *menu) switch (prop->type) { case P_MENU: child_count++; - prompt = prompt; if (single_menu_mode) { item_make("%s%*c%s", menu->data ? "-->" : "++>", From e0758412208960be9de11e6d2350c81ffd88410f Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Sat, 25 Aug 2018 01:14:46 +0200 Subject: [PATCH 0452/1762] netfilter: kconfig: nat related expression depend on nftables core NF_TABLES_IPV4 is now boolean so it is possible to set NF_TABLES=m NF_TABLES_IPV4=y NFT_CHAIN_NAT_IPV4=y which causes: nft_chain_nat_ipv4.c:(.text+0x6d): undefined reference to `nft_do_chain' Wrap NFT_CHAIN_NAT_IPV4 and related nat expressions with NF_TABLES to restore the dependency. Reported-by: Randy Dunlap Fixes: 02c7b25e5f54 ("netfilter: nf_tables: build-in filter chain type") Signed-off-by: Florian Westphal Acked-by: Randy Dunlap Signed-off-by: Pablo Neira Ayuso --- net/ipv4/netfilter/Kconfig | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig index d9504adc47b3..184bf2e0a1ed 100644 --- a/net/ipv4/netfilter/Kconfig +++ b/net/ipv4/netfilter/Kconfig @@ -106,6 +106,10 @@ config NF_NAT_IPV4 if NF_NAT_IPV4 +config NF_NAT_MASQUERADE_IPV4 + bool + +if NF_TABLES config NFT_CHAIN_NAT_IPV4 depends on NF_TABLES_IPV4 tristate "IPv4 nf_tables nat chain support" @@ -115,9 +119,6 @@ config NFT_CHAIN_NAT_IPV4 packet transformations such as the source, destination address and source and destination ports. -config NF_NAT_MASQUERADE_IPV4 - bool - config NFT_MASQ_IPV4 tristate "IPv4 masquerading support for nf_tables" depends on NF_TABLES_IPV4 @@ -135,6 +136,7 @@ config NFT_REDIR_IPV4 help This is the expression that provides IPv4 redirect support for nf_tables. +endif # NF_TABLES config NF_NAT_SNMP_BASIC tristate "Basic SNMP-ALG support" From 7acfda539c0b9636a58bfee56abfb3aeee806d96 Mon Sep 17 00:00:00 2001 From: Taehee Yoo Date: Sun, 26 Aug 2018 02:35:44 +0900 Subject: [PATCH 0453/1762] netfilter: nf_tables: release chain in flushing set When element of verdict map is deleted, the delete routine should release chain. however, flush element of verdict map routine doesn't release chain. test commands: %nft add table ip filter %nft add chain ip filter c1 %nft add map ip filter map1 { type ipv4_addr : verdict \; } %nft add element ip filter map1 { 1 : jump c1 } %nft flush map ip filter map1 %nft flush ruleset splat looks like: [ 4895.170899] kernel BUG at net/netfilter/nf_tables_api.c:1415! [ 4895.178114] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 4895.178880] CPU: 0 PID: 1670 Comm: nft Not tainted 4.18.0+ #55 [ 4895.178880] RIP: 0010:nf_tables_chain_destroy.isra.28+0x39/0x220 [nf_tables] [ 4895.178880] Code: fc ff df 53 48 89 fb 48 83 c7 50 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 09 3c 03 7f 05 e8 3e 4c 25 e1 8b 43 50 85 c0 74 02 <0f> 0b 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 [ 4895.228342] RSP: 0018:ffff88010b98f4c0 EFLAGS: 00010202 [ 4895.234841] RAX: 0000000000000001 RBX: ffff8801131c6968 RCX: ffff8801146585b0 [ 4895.234841] RDX: 1ffff10022638d37 RSI: ffff8801191a9348 RDI: ffff8801131c69b8 [ 4895.234841] RBP: ffff8801146585a8 R08: 1ffff1002323526a R09: 0000000000000000 [ 4895.234841] R10: 0000000000000000 R11: 0000000000000000 R12: dead000000000200 [ 4895.234841] R13: dead000000000100 R14: ffffffffa3638af8 R15: dffffc0000000000 [ 4895.234841] FS: 00007f6d188e6700(0000) GS:ffff88011b600000(0000) knlGS:0000000000000000 [ 4895.234841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4895.234841] CR2: 00007ffe72b8df88 CR3: 000000010e2d4000 CR4: 00000000001006f0 [ 4895.234841] Call Trace: [ 4895.234841] nf_tables_commit+0x2704/0x2c70 [nf_tables] [ 4895.234841] ? nfnetlink_rcv_batch+0xa4f/0x11b0 [nfnetlink] [ 4895.234841] ? nf_tables_setelem_notify.constprop.48+0x1a0/0x1a0 [nf_tables] [ 4895.323824] ? __lock_is_held+0x9d/0x130 [ 4895.323824] ? kasan_unpoison_shadow+0x30/0x40 [ 4895.333299] ? kasan_kmalloc+0xa9/0xc0 [ 4895.333299] ? kmem_cache_alloc_trace+0x2c0/0x310 [ 4895.333299] ? nfnetlink_rcv_batch+0xa4f/0x11b0 [nfnetlink] [ 4895.333299] nfnetlink_rcv_batch+0xdb9/0x11b0 [nfnetlink] [ 4895.333299] ? debug_show_all_locks+0x290/0x290 [ 4895.333299] ? nfnetlink_net_init+0x150/0x150 [nfnetlink] [ 4895.333299] ? sched_clock_cpu+0xe5/0x170 [ 4895.333299] ? sched_clock_local+0xff/0x130 [ 4895.333299] ? sched_clock_cpu+0xe5/0x170 [ 4895.333299] ? find_held_lock+0x39/0x1b0 [ 4895.333299] ? sched_clock_local+0xff/0x130 [ 4895.333299] ? memset+0x1f/0x40 [ 4895.333299] ? nla_parse+0x33/0x260 [ 4895.333299] ? ns_capable_common+0x6e/0x110 [ 4895.333299] nfnetlink_rcv+0x2c0/0x310 [nfnetlink] [ ... ] Fixes: 591054469b3e ("netfilter: nf_tables: revisit chain/object refcounting from elements") Signed-off-by: Taehee Yoo Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_tables_api.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 1dca5683f59f..2cfb173cd0b2 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -4637,6 +4637,7 @@ static int nft_flush_set(const struct nft_ctx *ctx, } set->ndeact++; + nft_set_elem_deactivate(ctx->net, set, elem); nft_trans_elem_set(trans) = set; nft_trans_elem(trans) = *elem; list_add_tail(&trans->list, &ctx->net->nft.commit_list); From 0f02cfbc3d9e413d450d8d0fd660077c23f67eff Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Thu, 30 Aug 2018 11:01:21 -0700 Subject: [PATCH 0454/1762] MIPS: VDSO: Match data page cache colouring when D$ aliases When a system suffers from dcache aliasing a user program may observe stale VDSO data from an aliased cache line. Notably this can break the expectation that clock_gettime(CLOCK_MONOTONIC, ...) is, as its name suggests, monotonic. In order to ensure that users observe updates to the VDSO data page as intended, align the user mappings of the VDSO data page such that their cache colouring matches that of the virtual address range which the kernel will use to update the data page - typically its unmapped address within kseg0. This ensures that we don't introduce aliasing cache lines for the VDSO data page, and therefore that userland will observe updates without requiring cache invalidation. Signed-off-by: Paul Burton Reported-by: Hauke Mehrtens Reported-by: Rene Nielsen Reported-by: Alexandre Belloni Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") Patchwork: https://patchwork.linux-mips.org/patch/20344/ Tested-by: Alexandre Belloni Tested-by: Hauke Mehrtens Cc: James Hogan Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org # v4.4+ --- arch/mips/kernel/vdso.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c index 019035d7225c..8f845f6e5f42 100644 --- a/arch/mips/kernel/vdso.c +++ b/arch/mips/kernel/vdso.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -20,6 +21,7 @@ #include #include +#include #include /* Kernel-provided data used by the VDSO. */ @@ -128,12 +130,30 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) vvar_size = gic_size + PAGE_SIZE; size = vvar_size + image->size; + /* + * Find a region that's large enough for us to perform the + * colour-matching alignment below. + */ + if (cpu_has_dc_aliases) + size += shm_align_mask + 1; + base = get_unmapped_area(NULL, 0, size, 0, 0); if (IS_ERR_VALUE(base)) { ret = base; goto out; } + /* + * If we suffer from dcache aliasing, ensure that the VDSO data page + * mapping is coloured the same as the kernel's mapping of that memory. + * This ensures that when the kernel updates the VDSO data userland + * will observe it without requiring cache invalidations. + */ + if (cpu_has_dc_aliases) { + base = __ALIGN_MASK(base, shm_align_mask); + base += ((unsigned long)&vdso_data - gic_size) & shm_align_mask; + } + data_addr = base + gic_size; vdso_addr = data_addr + PAGE_SIZE; From 3fcbb8260a87efb691d837e8cd24e81f65b3eb70 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 30 Aug 2018 13:52:38 -0700 Subject: [PATCH 0455/1762] ARC: atomics: unbork atomic_fetch_##op() In 4.19-rc1, Eugeniy reported weird boot and IO errors on ARC HSDK | INFO: task syslogd:77 blocked for more than 10 seconds. | Not tainted 4.19.0-rc1-00007-gf213acea4e88 #40 | "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this | message. | syslogd D 0 77 76 0x00000000 | | Stack Trace: | __switch_to+0x0/0xac | __schedule+0x1b2/0x730 | io_schedule+0x5c/0xc0 | __lock_page+0x98/0xdc | find_lock_entry+0x38/0x100 | shmem_getpage_gfp.isra.3+0x82/0xbfc | shmem_fault+0x46/0x138 | handle_mm_fault+0x5bc/0x924 | do_page_fault+0x100/0x2b8 | ret_from_exception+0x0/0x8 He bisected to 84c6591103db ("locking/atomics, asm-generic/bitops/lock.h: Rewrite using atomic_fetch_*()") This commit however only unmasked the real issue introduced by commit 4aef66c8ae9 ("locking/atomic, arch/arc: Fix build") which missed the retry-if-scond-failed branch in atomic_fetch_##op() macros. The bisected commit started using atomic_fetch_##op() macros for building the rest of atomics. Fixes: 4aef66c8ae9 ("locking/atomic, arch/arc: Fix build") Reported-by: Eugeniy Paltsev Acked-by: Peter Zijlstra (Intel) Signed-off-by: Will Deacon Signed-off-by: Vineet Gupta [vgupta: wrote changelog] --- arch/arc/include/asm/atomic.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arc/include/asm/atomic.h b/arch/arc/include/asm/atomic.h index 4e0072730241..158af079838d 100644 --- a/arch/arc/include/asm/atomic.h +++ b/arch/arc/include/asm/atomic.h @@ -84,7 +84,7 @@ static inline int atomic_fetch_##op(int i, atomic_t *v) \ "1: llock %[orig], [%[ctr]] \n" \ " " #asm_op " %[val], %[orig], %[i] \n" \ " scond %[val], [%[ctr]] \n" \ - " \n" \ + " bnz 1b \n" \ : [val] "=&r" (val), \ [orig] "=&r" (orig) \ : [ctr] "r" (&v->counter), \ From a8627cda7cfffe1792c199660c2b4f03ba2bd97b Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Fri, 31 Aug 2018 10:00:34 -0500 Subject: [PATCH 0456/1762] ipmi: Fix NULL pointer dereference in ssif_probe There is a potential execution path in which function ssif_info_find() returns NULL, hence there is a NULL pointer dereference when accessing pointer *addr_info* Fix this by null checking *addr_info* before dereferencing it. Addresses-Coverity-ID: 1473145 ("Explicit null dereferenced") Fixes: e333054a91d1 ("ipmi: Fix I2C client removal in the SSIF driver") Signed-off-by: Gustavo A. R. Silva Signed-off-by: Corey Minyard --- drivers/char/ipmi/ipmi_ssif.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c index 265d6a6583bc..29e67a80fb20 100644 --- a/drivers/char/ipmi/ipmi_ssif.c +++ b/drivers/char/ipmi/ipmi_ssif.c @@ -1643,7 +1643,9 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id) out: if (rv) { - addr_info->client = NULL; + if (addr_info) + addr_info->client = NULL; + dev_err(&client->dev, "Unable to start IPMI SSIF: %d\n", rv); kfree(ssif_info); } From 678c8110d23c0ac7d69fda558992c31be64e7507 Mon Sep 17 00:00:00 2001 From: Eugeniy Paltsev Date: Mon, 30 Jul 2018 19:26:33 +0300 Subject: [PATCH 0457/1762] ARC: dma [IOC]: mark DMA devices connected as dma-coherent Mark DMA devices on AXS103 and HSDK boards connected through IOC port as dma-coherent. Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta --- arch/arc/boot/dts/axc003.dtsi | 26 ++++++++++++++++++++++++++ arch/arc/boot/dts/axc003_idu.dtsi | 26 ++++++++++++++++++++++++++ arch/arc/boot/dts/hsdk.dts | 4 ++++ 3 files changed, 56 insertions(+) diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi index dc91c663bcc0..d75d65ddf8e3 100644 --- a/arch/arc/boot/dts/axc003.dtsi +++ b/arch/arc/boot/dts/axc003.dtsi @@ -93,6 +93,32 @@ }; }; + /* + * Mark DMA peripherals connected via IOC port as dma-coherent. We do + * it via overlay because peripherals defined in axs10x_mb.dtsi are + * used for both AXS101 and AXS103 boards and only AXS103 has IOC (so + * only AXS103 board has HW-coherent DMA peripherals) + * We don't need to mark pgu@17000 as dma-coherent because it uses + * external DMA buffer located outside of IOC aperture. + */ + axs10x_mb { + ethernet@0x18000 { + dma-coherent; + }; + + ehci@0x40000 { + dma-coherent; + }; + + ohci@0x60000 { + dma-coherent; + }; + + mmc@0x15000 { + dma-coherent; + }; + }; + /* * The DW APB ICTL intc on MB is connected to CPU intc via a * DT "invisible" DW APB GPIO block, configured to simply pass thru diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi index 69ff4895f2ba..a05bb737ea63 100644 --- a/arch/arc/boot/dts/axc003_idu.dtsi +++ b/arch/arc/boot/dts/axc003_idu.dtsi @@ -100,6 +100,32 @@ }; }; + /* + * Mark DMA peripherals connected via IOC port as dma-coherent. We do + * it via overlay because peripherals defined in axs10x_mb.dtsi are + * used for both AXS101 and AXS103 boards and only AXS103 has IOC (so + * only AXS103 board has HW-coherent DMA peripherals) + * We don't need to mark pgu@17000 as dma-coherent because it uses + * external DMA buffer located outside of IOC aperture. + */ + axs10x_mb { + ethernet@0x18000 { + dma-coherent; + }; + + ehci@0x40000 { + dma-coherent; + }; + + ohci@0x60000 { + dma-coherent; + }; + + mmc@0x15000 { + dma-coherent; + }; + }; + /* * This INTC is actually connected to DW APB GPIO * which acts as a wire between MB INTC and CPU INTC. diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts index d00f283094d3..ef149f59929a 100644 --- a/arch/arc/boot/dts/hsdk.dts +++ b/arch/arc/boot/dts/hsdk.dts @@ -181,6 +181,7 @@ resets = <&cgu_rst HSDK_ETH_RESET>; reset-names = "stmmaceth"; mac-address = [00 00 00 00 00 00]; /* Filled in by U-Boot */ + dma-coherent; mdio { #address-cells = <1>; @@ -199,12 +200,14 @@ compatible = "snps,hsdk-v1.0-ohci", "generic-ohci"; reg = <0x60000 0x100>; interrupts = <15>; + dma-coherent; }; ehci@40000 { compatible = "snps,hsdk-v1.0-ehci", "generic-ehci"; reg = <0x40000 0x100>; interrupts = <15>; + dma-coherent; }; mmc@a000 { @@ -217,6 +220,7 @@ clock-names = "biu", "ciu"; interrupts = <12>; bus-width = <4>; + dma-coherent; }; }; From 6b06546206868f723f2061d703a3c3c378dcbf4c Mon Sep 17 00:00:00 2001 From: "Dennis Zhou (Facebook)" Date: Fri, 31 Aug 2018 16:22:42 -0400 Subject: [PATCH 0458/1762] Revert "blk-throttle: fix race between blkcg_bio_issue_check() and cgroup_rmdir()" This reverts commit 4c6994806f708559c2812b73501406e21ae5dcd0. Destroying blkgs is tricky because of the nature of the relationship. A blkg should go away when either a blkcg or a request_queue goes away. However, blkg's pin the blkcg to ensure they remain valid. To break this cycle, when a blkcg is offlined, blkgs put back their css ref. This eventually lets css_free() get called which frees the blkcg. The above commit (4c6994806f70) breaks this order of events by trying to destroy blkgs in css_free(). As the blkgs still hold references to the blkcg, css_free() is never called. The race between blkcg_bio_issue_check() and cgroup_rmdir() will be addressed in the following patch by delaying destruction of a blkg until all writeback associated with the blkcg has been finished. Fixes: 4c6994806f70 ("blk-throttle: fix race between blkcg_bio_issue_check() and cgroup_rmdir()") Reviewed-by: Josef Bacik Signed-off-by: Dennis Zhou Cc: Jiufei Xue Cc: Joseph Qi Cc: Tejun Heo Cc: Jens Axboe Signed-off-by: Jens Axboe --- block/blk-cgroup.c | 78 ++++++++------------------------------ include/linux/blk-cgroup.h | 1 - 2 files changed, 16 insertions(+), 63 deletions(-) diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 694595b29b8f..2998e4f095d1 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -310,28 +310,11 @@ struct blkcg_gq *blkg_lookup_create(struct blkcg *blkcg, } } -static void blkg_pd_offline(struct blkcg_gq *blkg) -{ - int i; - - lockdep_assert_held(blkg->q->queue_lock); - lockdep_assert_held(&blkg->blkcg->lock); - - for (i = 0; i < BLKCG_MAX_POLS; i++) { - struct blkcg_policy *pol = blkcg_policy[i]; - - if (blkg->pd[i] && !blkg->pd[i]->offline && - pol->pd_offline_fn) { - pol->pd_offline_fn(blkg->pd[i]); - blkg->pd[i]->offline = true; - } - } -} - static void blkg_destroy(struct blkcg_gq *blkg) { struct blkcg *blkcg = blkg->blkcg; struct blkcg_gq *parent = blkg->parent; + int i; lockdep_assert_held(blkg->q->queue_lock); lockdep_assert_held(&blkcg->lock); @@ -340,6 +323,13 @@ static void blkg_destroy(struct blkcg_gq *blkg) WARN_ON_ONCE(list_empty(&blkg->q_node)); WARN_ON_ONCE(hlist_unhashed(&blkg->blkcg_node)); + for (i = 0; i < BLKCG_MAX_POLS; i++) { + struct blkcg_policy *pol = blkcg_policy[i]; + + if (blkg->pd[i] && pol->pd_offline_fn) + pol->pd_offline_fn(blkg->pd[i]); + } + if (parent) { blkg_rwstat_add_aux(&parent->stat_bytes, &blkg->stat_bytes); blkg_rwstat_add_aux(&parent->stat_ios, &blkg->stat_ios); @@ -382,7 +372,6 @@ static void blkg_destroy_all(struct request_queue *q) struct blkcg *blkcg = blkg->blkcg; spin_lock(&blkcg->lock); - blkg_pd_offline(blkg); blkg_destroy(blkg); spin_unlock(&blkcg->lock); } @@ -1058,25 +1047,25 @@ static struct cftype blkcg_legacy_files[] = { * @css: css of interest * * This function is called when @css is about to go away and responsible - * for offlining all blkgs pd and killing all wbs associated with @css. - * blkgs pd offline should be done while holding both q and blkcg locks. - * As blkcg lock is nested inside q lock, this function performs reverse - * double lock dancing. + * for shooting down all blkgs associated with @css. blkgs should be + * removed while holding both q and blkcg locks. As blkcg lock is nested + * inside q lock, this function performs reverse double lock dancing. * * This is the blkcg counterpart of ioc_release_fn(). */ static void blkcg_css_offline(struct cgroup_subsys_state *css) { struct blkcg *blkcg = css_to_blkcg(css); - struct blkcg_gq *blkg; spin_lock_irq(&blkcg->lock); - hlist_for_each_entry(blkg, &blkcg->blkg_list, blkcg_node) { + while (!hlist_empty(&blkcg->blkg_list)) { + struct blkcg_gq *blkg = hlist_entry(blkcg->blkg_list.first, + struct blkcg_gq, blkcg_node); struct request_queue *q = blkg->q; if (spin_trylock(q->queue_lock)) { - blkg_pd_offline(blkg); + blkg_destroy(blkg); spin_unlock(q->queue_lock); } else { spin_unlock_irq(&blkcg->lock); @@ -1090,43 +1079,11 @@ static void blkcg_css_offline(struct cgroup_subsys_state *css) wb_blkcg_offline(blkcg); } -/** - * blkcg_destroy_all_blkgs - destroy all blkgs associated with a blkcg - * @blkcg: blkcg of interest - * - * This function is called when blkcg css is about to free and responsible for - * destroying all blkgs associated with @blkcg. - * blkgs should be removed while holding both q and blkcg locks. As blkcg lock - * is nested inside q lock, this function performs reverse double lock dancing. - */ -static void blkcg_destroy_all_blkgs(struct blkcg *blkcg) -{ - spin_lock_irq(&blkcg->lock); - while (!hlist_empty(&blkcg->blkg_list)) { - struct blkcg_gq *blkg = hlist_entry(blkcg->blkg_list.first, - struct blkcg_gq, - blkcg_node); - struct request_queue *q = blkg->q; - - if (spin_trylock(q->queue_lock)) { - blkg_destroy(blkg); - spin_unlock(q->queue_lock); - } else { - spin_unlock_irq(&blkcg->lock); - cpu_relax(); - spin_lock_irq(&blkcg->lock); - } - } - spin_unlock_irq(&blkcg->lock); -} - static void blkcg_css_free(struct cgroup_subsys_state *css) { struct blkcg *blkcg = css_to_blkcg(css); int i; - blkcg_destroy_all_blkgs(blkcg); - mutex_lock(&blkcg_pol_mutex); list_del(&blkcg->all_blkcgs_node); @@ -1480,11 +1437,8 @@ void blkcg_deactivate_policy(struct request_queue *q, list_for_each_entry(blkg, &q->blkg_list, q_node) { if (blkg->pd[pol->plid]) { - if (!blkg->pd[pol->plid]->offline && - pol->pd_offline_fn) { + if (pol->pd_offline_fn) pol->pd_offline_fn(blkg->pd[pol->plid]); - blkg->pd[pol->plid]->offline = true; - } pol->pd_free_fn(blkg->pd[pol->plid]); blkg->pd[pol->plid] = NULL; } diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h index 34aec30e06c7..1615cdd4c797 100644 --- a/include/linux/blk-cgroup.h +++ b/include/linux/blk-cgroup.h @@ -89,7 +89,6 @@ struct blkg_policy_data { /* the blkg and policy id this per-policy data belongs to */ struct blkcg_gq *blkg; int plid; - bool offline; }; /* From 59b57717fff8b562825d9d25e0180ad7e8048ca9 Mon Sep 17 00:00:00 2001 From: "Dennis Zhou (Facebook)" Date: Fri, 31 Aug 2018 16:22:43 -0400 Subject: [PATCH 0459/1762] blkcg: delay blkg destruction until after writeback has finished Currently, blkcg destruction relies on a sequence of events: 1. Destruction starts. blkcg_css_offline() is called and blkgs release their reference to the blkcg. This immediately destroys the cgwbs (writeback). 2. With blkgs giving up their reference, the blkcg ref count should become zero and eventually call blkcg_css_free() which finally frees the blkcg. Jiufei Xue reported that there is a race between blkcg_bio_issue_check() and cgroup_rmdir(). To remedy this, blkg destruction becomes contingent on the completion of all writeback associated with the blkcg. A count of the number of cgwbs is maintained and once that goes to zero, blkg destruction can follow. This should prevent premature blkg destruction related to writeback. The new process for blkcg cleanup is as follows: 1. Destruction starts. blkcg_css_offline() is called which offlines writeback. Blkg destruction is delayed on the cgwb_refcnt count to avoid punting potentially large amounts of outstanding writeback to root while maintaining any ongoing policies. Here, the base cgwb_refcnt is put back. 2. When the cgwb_refcnt becomes zero, blkcg_destroy_blkgs() is called and handles destruction of blkgs. This is where the css reference held by each blkg is released. 3. Once the blkcg ref count goes to zero, blkcg_css_free() is called. This finally frees the blkg. It seems in the past blk-throttle didn't do the most understandable things with taking data from a blkg while associating with current. So, the simplification and unification of what blk-throttle is doing caused this. Fixes: 08e18eab0c579 ("block: add bi_blkg to the bio for cgroups") Reviewed-by: Josef Bacik Signed-off-by: Dennis Zhou Cc: Jiufei Xue Cc: Joseph Qi Cc: Tejun Heo Cc: Josef Bacik Cc: Jens Axboe Signed-off-by: Jens Axboe --- block/blk-cgroup.c | 53 ++++++++++++++++++++++++++++++++------ include/linux/blk-cgroup.h | 44 +++++++++++++++++++++++++++++++ mm/backing-dev.c | 5 ++++ 3 files changed, 94 insertions(+), 8 deletions(-) diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 2998e4f095d1..c19f9078da1e 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -1042,21 +1042,59 @@ static struct cftype blkcg_legacy_files[] = { { } /* terminate */ }; +/* + * blkcg destruction is a three-stage process. + * + * 1. Destruction starts. The blkcg_css_offline() callback is invoked + * which offlines writeback. Here we tie the next stage of blkg destruction + * to the completion of writeback associated with the blkcg. This lets us + * avoid punting potentially large amounts of outstanding writeback to root + * while maintaining any ongoing policies. The next stage is triggered when + * the nr_cgwbs count goes to zero. + * + * 2. When the nr_cgwbs count goes to zero, blkcg_destroy_blkgs() is called + * and handles the destruction of blkgs. Here the css reference held by + * the blkg is put back eventually allowing blkcg_css_free() to be called. + * This work may occur in cgwb_release_workfn() on the cgwb_release + * workqueue. Any submitted ios that fail to get the blkg ref will be + * punted to the root_blkg. + * + * 3. Once the blkcg ref count goes to zero, blkcg_css_free() is called. + * This finally frees the blkcg. + */ + /** * blkcg_css_offline - cgroup css_offline callback * @css: css of interest * - * This function is called when @css is about to go away and responsible - * for shooting down all blkgs associated with @css. blkgs should be - * removed while holding both q and blkcg locks. As blkcg lock is nested - * inside q lock, this function performs reverse double lock dancing. - * - * This is the blkcg counterpart of ioc_release_fn(). + * This function is called when @css is about to go away. Here the cgwbs are + * offlined first and only once writeback associated with the blkcg has + * finished do we start step 2 (see above). */ static void blkcg_css_offline(struct cgroup_subsys_state *css) { struct blkcg *blkcg = css_to_blkcg(css); + /* this prevents anyone from attaching or migrating to this blkcg */ + wb_blkcg_offline(blkcg); + + /* put the base cgwb reference allowing step 2 to be triggered */ + blkcg_cgwb_put(blkcg); +} + +/** + * blkcg_destroy_blkgs - responsible for shooting down blkgs + * @blkcg: blkcg of interest + * + * blkgs should be removed while holding both q and blkcg locks. As blkcg lock + * is nested inside q lock, this function performs reverse double lock dancing. + * Destroying the blkgs releases the reference held on the blkcg's css allowing + * blkcg_css_free to eventually be called. + * + * This is the blkcg counterpart of ioc_release_fn(). + */ +void blkcg_destroy_blkgs(struct blkcg *blkcg) +{ spin_lock_irq(&blkcg->lock); while (!hlist_empty(&blkcg->blkg_list)) { @@ -1075,8 +1113,6 @@ static void blkcg_css_offline(struct cgroup_subsys_state *css) } spin_unlock_irq(&blkcg->lock); - - wb_blkcg_offline(blkcg); } static void blkcg_css_free(struct cgroup_subsys_state *css) @@ -1146,6 +1182,7 @@ blkcg_css_alloc(struct cgroup_subsys_state *parent_css) INIT_HLIST_HEAD(&blkcg->blkg_list); #ifdef CONFIG_CGROUP_WRITEBACK INIT_LIST_HEAD(&blkcg->cgwb_list); + refcount_set(&blkcg->cgwb_refcnt, 1); #endif list_add_tail(&blkcg->all_blkcgs_node, &all_blkcgs); diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h index 1615cdd4c797..6d766a19f2bb 100644 --- a/include/linux/blk-cgroup.h +++ b/include/linux/blk-cgroup.h @@ -56,6 +56,7 @@ struct blkcg { struct list_head all_blkcgs_node; #ifdef CONFIG_CGROUP_WRITEBACK struct list_head cgwb_list; + refcount_t cgwb_refcnt; #endif }; @@ -386,6 +387,49 @@ static inline struct blkcg *cpd_to_blkcg(struct blkcg_policy_data *cpd) return cpd ? cpd->blkcg : NULL; } +extern void blkcg_destroy_blkgs(struct blkcg *blkcg); + +#ifdef CONFIG_CGROUP_WRITEBACK + +/** + * blkcg_cgwb_get - get a reference for blkcg->cgwb_list + * @blkcg: blkcg of interest + * + * This is used to track the number of active wb's related to a blkcg. + */ +static inline void blkcg_cgwb_get(struct blkcg *blkcg) +{ + refcount_inc(&blkcg->cgwb_refcnt); +} + +/** + * blkcg_cgwb_put - put a reference for @blkcg->cgwb_list + * @blkcg: blkcg of interest + * + * This is used to track the number of active wb's related to a blkcg. + * When this count goes to zero, all active wb has finished so the + * blkcg can continue destruction by calling blkcg_destroy_blkgs(). + * This work may occur in cgwb_release_workfn() on the cgwb_release + * workqueue. + */ +static inline void blkcg_cgwb_put(struct blkcg *blkcg) +{ + if (refcount_dec_and_test(&blkcg->cgwb_refcnt)) + blkcg_destroy_blkgs(blkcg); +} + +#else + +static inline void blkcg_cgwb_get(struct blkcg *blkcg) { } + +static inline void blkcg_cgwb_put(struct blkcg *blkcg) +{ + /* wb isn't being accounted, so trigger destruction right away */ + blkcg_destroy_blkgs(blkcg); +} + +#endif + /** * blkg_path - format cgroup path of blkg * @blkg: blkg of interest diff --git a/mm/backing-dev.c b/mm/backing-dev.c index f5981e9d6ae2..8a8bb8796c6c 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -491,6 +491,7 @@ static void cgwb_release_workfn(struct work_struct *work) { struct bdi_writeback *wb = container_of(work, struct bdi_writeback, release_work); + struct blkcg *blkcg = css_to_blkcg(wb->blkcg_css); mutex_lock(&wb->bdi->cgwb_release_mutex); wb_shutdown(wb); @@ -499,6 +500,9 @@ static void cgwb_release_workfn(struct work_struct *work) css_put(wb->blkcg_css); mutex_unlock(&wb->bdi->cgwb_release_mutex); + /* triggers blkg destruction if cgwb_refcnt becomes zero */ + blkcg_cgwb_put(blkcg); + fprop_local_destroy_percpu(&wb->memcg_completions); percpu_ref_exit(&wb->refcnt); wb_exit(wb); @@ -597,6 +601,7 @@ static int cgwb_create(struct backing_dev_info *bdi, list_add_tail_rcu(&wb->bdi_node, &bdi->wb_list); list_add(&wb->memcg_node, memcg_cgwb_list); list_add(&wb->blkcg_node, blkcg_cgwb_list); + blkcg_cgwb_get(blkcg); css_get(memcg_css); css_get(blkcg_css); } From 3111885015b458c97b4cf272e2a87f1d6f0ed06a Mon Sep 17 00:00:00 2001 From: "Dennis Zhou (Facebook)" Date: Fri, 31 Aug 2018 16:22:44 -0400 Subject: [PATCH 0460/1762] blkcg: use tryget logic when associating a blkg with a bio There is a very small change a bio gets caught up in a really unfortunate race between a task migration, cgroup exiting, and itself trying to associate with a blkg. This is due to css offlining being performed after the css->refcnt is killed which triggers removal of blkgs that reach their blkg->refcnt of 0. To avoid this, association with a blkg should use tryget and fallback to using the root_blkg. Fixes: 08e18eab0c579 ("block: add bi_blkg to the bio for cgroups") Reviewed-by: Josef Bacik Signed-off-by: Dennis Zhou Cc: Jiufei Xue Cc: Joseph Qi Cc: Tejun Heo Cc: Josef Bacik Cc: Jens Axboe Signed-off-by: Jens Axboe --- block/bio.c | 3 ++- block/blk-throttle.c | 5 +++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/block/bio.c b/block/bio.c index b12966e415d3..8c680a776171 100644 --- a/block/bio.c +++ b/block/bio.c @@ -2015,7 +2015,8 @@ int bio_associate_blkg(struct bio *bio, struct blkcg_gq *blkg) { if (unlikely(bio->bi_blkg)) return -EBUSY; - blkg_get(blkg); + if (!blkg_try_get(blkg)) + return -ENODEV; bio->bi_blkg = blkg; return 0; } diff --git a/block/blk-throttle.c b/block/blk-throttle.c index a3eede00d302..01d0620a4e4a 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -2129,8 +2129,9 @@ static inline void throtl_update_latency_buckets(struct throtl_data *td) static void blk_throtl_assoc_bio(struct throtl_grp *tg, struct bio *bio) { #ifdef CONFIG_BLK_DEV_THROTTLING_LOW - if (bio->bi_css) - bio_associate_blkg(bio, tg_to_blkg(tg)); + /* fallback to root_blkg if we fail to get a blkg ref */ + if (bio->bi_css && (bio_associate_blkg(bio, tg_to_blkg(tg)) == -ENODEV)) + bio_associate_blkg(bio, bio->bi_disk->queue->root_blkg); bio_issue_init(&bio->bi_issue, bio_sectors(bio)); #endif } From e254de6bcf3f5b6e78a92ac95fb91acef8adfe1a Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Wed, 29 Aug 2018 11:05:42 -0700 Subject: [PATCH 0461/1762] md/raid5-cache: disable reshape completely We don't support reshape yet if an array supports log device. Previously we determine the fact by checking ->log. However, ->log could be NULL after a log device is removed, but the array is still marked to support log device. Don't allow reshape in this case too. User can disable log device support by setting 'consistency_policy' to 'resync' then do reshape. Reported-by: Xiao Ni Tested-by: Xiao Ni Signed-off-by: Shaohua Li --- drivers/md/raid5-log.h | 5 +++++ drivers/md/raid5.c | 6 +++--- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/md/raid5-log.h b/drivers/md/raid5-log.h index a001808a2b77..bfb811407061 100644 --- a/drivers/md/raid5-log.h +++ b/drivers/md/raid5-log.h @@ -46,6 +46,11 @@ extern int ppl_modify_log(struct r5conf *conf, struct md_rdev *rdev, bool add); extern void ppl_quiesce(struct r5conf *conf, int quiesce); extern int ppl_handle_flush_request(struct r5l_log *log, struct bio *bio); +static inline bool raid5_has_log(struct r5conf *conf) +{ + return test_bit(MD_HAS_JOURNAL, &conf->mddev->flags); +} + static inline bool raid5_has_ppl(struct r5conf *conf) { return test_bit(MD_HAS_PPL, &conf->mddev->flags); diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 4ce0d7502fad..e4e98f47865d 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -733,7 +733,7 @@ static bool stripe_can_batch(struct stripe_head *sh) { struct r5conf *conf = sh->raid_conf; - if (conf->log || raid5_has_ppl(conf)) + if (raid5_has_log(conf) || raid5_has_ppl(conf)) return false; return test_bit(STRIPE_BATCH_READY, &sh->state) && !test_bit(STRIPE_BITMAP_PENDING, &sh->state) && @@ -7737,7 +7737,7 @@ static int raid5_resize(struct mddev *mddev, sector_t sectors) sector_t newsize; struct r5conf *conf = mddev->private; - if (conf->log || raid5_has_ppl(conf)) + if (raid5_has_log(conf) || raid5_has_ppl(conf)) return -EINVAL; sectors &= ~((sector_t)conf->chunk_sectors - 1); newsize = raid5_size(mddev, sectors, mddev->raid_disks); @@ -7788,7 +7788,7 @@ static int check_reshape(struct mddev *mddev) { struct r5conf *conf = mddev->private; - if (conf->log || raid5_has_ppl(conf)) + if (raid5_has_log(conf) || raid5_has_ppl(conf)) return -EINVAL; if (mddev->delta_disks == 0 && mddev->new_layout == mddev->layout && From 1d0ffd264204eba1861865560f1f7f7a92919384 Mon Sep 17 00:00:00 2001 From: Xiao Ni Date: Thu, 30 Aug 2018 15:57:09 +0800 Subject: [PATCH 0462/1762] RAID10 BUG_ON in raise_barrier when force is true and conf->barrier is 0 In raid10 reshape_request it gets max_sectors in read_balance. If the underlayer disks have bad blocks, the max_sectors is less than last. It will call goto read_more many times. It calls raise_barrier(conf, sectors_done != 0) every time. In this condition sectors_done is not 0. So the value passed to the argument force of raise_barrier is true. In raise_barrier it checks conf->barrier when force is true. If force is true and conf->barrier is 0, it panic. In this case reshape_request submits bio to under layer disks. And in the callback function of the bio it calls lower_barrier. If the bio finishes before calling raise_barrier again, it can trigger the BUG_ON. Add one pair of raise_barrier/lower_barrier to fix this bug. Signed-off-by: Xiao Ni Suggested-by: Neil Brown Signed-off-by: Shaohua Li --- drivers/md/raid10.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 981898049491..d6f7978b4449 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -4529,11 +4529,12 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr, allow_barrier(conf); } + raise_barrier(conf, 0); read_more: /* Now schedule reads for blocks from sector_nr to last */ r10_bio = raid10_alloc_init_r10buf(conf); r10_bio->state = 0; - raise_barrier(conf, sectors_done != 0); + raise_barrier(conf, 1); atomic_set(&r10_bio->remaining, 0); r10_bio->mddev = mddev; r10_bio->sector = sector_nr; @@ -4629,6 +4630,8 @@ read_more: if (sector_nr <= last) goto read_more; + lower_barrier(conf); + /* Now that we have done the whole section we can * update reshape_progress */ From 41a95041126522a921fb73df22cbdd520dfdebad Mon Sep 17 00:00:00 2001 From: Guoqing Jiang Date: Fri, 31 Aug 2018 10:05:57 +0800 Subject: [PATCH 0463/1762] md-cluster: release RESYNC lock after the last resync message All the RESYNC messages are sent with resync lock held, the only exception is resync_finish which releases resync_lockres before send the last resync message, this should be changed as well. Otherwise, we can see deadlock issue as follows: clustermd2-gqjiang2:~ # cat /proc/mdstat Personalities : [raid10] [raid1] md0 : active raid1 sdg[0] sdf[1] 134144 blocks super 1.2 [2/2] [UU] [===================>.] resync = 99.6% (134144/134144) finish=0.0min speed=26K/sec bitmap: 1/1 pages [4KB], 65536KB chunk unused devices: clustermd2-gqjiang2:~ # ps aux|grep md|grep D root 20497 0.0 0.0 0 0 ? D 16:00 0:00 [md0_raid1] clustermd2-gqjiang2:~ # cat /proc/20497/stack [] dlm_lock_sync+0x8e/0xc0 [md_cluster] [] __sendmsg+0x98/0x130 [md_cluster] [] sendmsg+0x20/0x30 [md_cluster] [] resync_info_update+0xb5/0xc0 [md_cluster] [] md_reap_sync_thread+0x134/0x170 [md_mod] [] md_check_recovery+0x28c/0x510 [md_mod] [] raid1d+0x42/0x800 [raid1] [] md_thread+0x121/0x150 [md_mod] [] kthread+0xff/0x140 [] ret_from_fork+0x35/0x40 [] 0xffffffffffffffff clustermd-gqjiang1:~ # ps aux|grep md|grep D root 20531 0.0 0.0 0 0 ? D 16:00 0:00 [md0_raid1] root 20537 0.0 0.0 0 0 ? D 16:00 0:00 [md0_cluster_rec] root 20676 0.0 0.0 0 0 ? D 16:01 0:00 [md0_resync] clustermd-gqjiang1:~ # cat /proc/mdstat Personalities : [raid10] [raid1] md0 : active raid1 sdf[1] sdg[0] 134144 blocks super 1.2 [2/2] [UU] [===================>.] resync = 97.3% (131072/134144) finish=8076.8min speed=0K/sec bitmap: 1/1 pages [4KB], 65536KB chunk unused devices: clustermd-gqjiang1:~ # cat /proc/20531/stack [] metadata_update_start+0xcd/0xd0 [md_cluster] [] md_update_sb.part.61+0x97/0x820 [md_mod] [] md_check_recovery+0x29b/0x510 [md_mod] [] raid1d+0x42/0x800 [raid1] [] md_thread+0x121/0x150 [md_mod] [] kthread+0xff/0x140 [] ret_from_fork+0x35/0x40 [] 0xffffffffffffffff clustermd-gqjiang1:~ # cat /proc/20537/stack [] freeze_array+0xf2/0x140 [raid1] [] recv_daemon+0x41e/0x580 [md_cluster] [] md_thread+0x121/0x150 [md_mod] [] kthread+0xff/0x140 [] ret_from_fork+0x35/0x40 [] 0xffffffffffffffff clustermd-gqjiang1:~ # cat /proc/20676/stack [] dlm_lock_sync+0x8e/0xc0 [md_cluster] [] lock_token+0x2f/0xa0 [md_cluster] [] lock_comm+0x32/0x90 [md_cluster] [] sendmsg+0x15/0x30 [md_cluster] [] resync_info_update+0x8a/0xc0 [md_cluster] [] raid1_sync_request+0xa9a/0xb10 [raid1] [] md_do_sync+0xbaa/0xf90 [md_mod] [] md_thread+0x121/0x150 [md_mod] [] kthread+0xff/0x140 [] ret_from_fork+0x35/0x40 [] 0xffffffffffffffff Reviewed-by: NeilBrown Signed-off-by: Guoqing Jiang Signed-off-by: Shaohua Li --- drivers/md/md-cluster.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c index 94329e03001e..0b2af6e74fc3 100644 --- a/drivers/md/md-cluster.c +++ b/drivers/md/md-cluster.c @@ -1276,18 +1276,18 @@ static int resync_info_update(struct mddev *mddev, sector_t lo, sector_t hi) static int resync_finish(struct mddev *mddev) { struct md_cluster_info *cinfo = mddev->cluster_info; + int ret = 0; clear_bit(MD_RESYNCING_REMOTE, &mddev->recovery); - dlm_unlock_sync(cinfo->resync_lockres); /* * If resync thread is interrupted so we can't say resync is finished, * another node will launch resync thread to continue. */ - if (test_bit(MD_CLOSING, &mddev->flags)) - return 0; - else - return resync_info_update(mddev, 0, 0); + if (!test_bit(MD_CLOSING, &mddev->flags)) + ret = resync_info_update(mddev, 0, 0); + dlm_unlock_sync(cinfo->resync_lockres); + return ret; } static int area_resyncing(struct mddev *mddev, int direction, From 3a7ad0634f0986d807772ba74f66f7c3a73612e5 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 29 Aug 2018 11:50:12 -0700 Subject: [PATCH 0464/1762] Revert "packet: switch kvzalloc to allocate memory" This reverts commit 71e41286203c017d24f041a7cd71abea7ca7b1e0. mmap()/munmap() can not be backed by kmalloced pages : We fault in : VM_BUG_ON_PAGE(PageSlab(page), page); unmap_single_vma+0x8a/0x110 unmap_vmas+0x4b/0x90 unmap_region+0xc9/0x140 do_munmap+0x274/0x360 vm_munmap+0x81/0xc0 SyS_munmap+0x2b/0x40 do_syscall_64+0x13e/0x1c0 entry_SYSCALL_64_after_hwframe+0x42/0xb7 Fixes: 71e41286203c ("packet: switch kvzalloc to allocate memory") Signed-off-by: Eric Dumazet Reported-by: John Sperbeck Bisected-by: John Sperbeck Cc: Zhang Yu Cc: Li RongQing Signed-off-by: David S. Miller --- net/packet/af_packet.c | 44 +++++++++++++++++++++++++++++------------- net/packet/internal.h | 1 + 2 files changed, 32 insertions(+), 13 deletions(-) diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 5610061e7f2e..75c92a87e7b2 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -4137,36 +4137,52 @@ static const struct vm_operations_struct packet_mmap_ops = { .close = packet_mm_close, }; -static void free_pg_vec(struct pgv *pg_vec, unsigned int len) +static void free_pg_vec(struct pgv *pg_vec, unsigned int order, + unsigned int len) { int i; for (i = 0; i < len; i++) { if (likely(pg_vec[i].buffer)) { - kvfree(pg_vec[i].buffer); + if (is_vmalloc_addr(pg_vec[i].buffer)) + vfree(pg_vec[i].buffer); + else + free_pages((unsigned long)pg_vec[i].buffer, + order); pg_vec[i].buffer = NULL; } } kfree(pg_vec); } -static char *alloc_one_pg_vec_page(unsigned long size) +static char *alloc_one_pg_vec_page(unsigned long order) { char *buffer; + gfp_t gfp_flags = GFP_KERNEL | __GFP_COMP | + __GFP_ZERO | __GFP_NOWARN | __GFP_NORETRY; - buffer = kvzalloc(size, GFP_KERNEL); + buffer = (char *) __get_free_pages(gfp_flags, order); if (buffer) return buffer; - buffer = kvzalloc(size, GFP_KERNEL | __GFP_RETRY_MAYFAIL); + /* __get_free_pages failed, fall back to vmalloc */ + buffer = vzalloc(array_size((1 << order), PAGE_SIZE)); + if (buffer) + return buffer; - return buffer; + /* vmalloc failed, lets dig into swap here */ + gfp_flags &= ~__GFP_NORETRY; + buffer = (char *) __get_free_pages(gfp_flags, order); + if (buffer) + return buffer; + + /* complete and utter failure */ + return NULL; } -static struct pgv *alloc_pg_vec(struct tpacket_req *req) +static struct pgv *alloc_pg_vec(struct tpacket_req *req, int order) { unsigned int block_nr = req->tp_block_nr; - unsigned long size = req->tp_block_size; struct pgv *pg_vec; int i; @@ -4175,7 +4191,7 @@ static struct pgv *alloc_pg_vec(struct tpacket_req *req) goto out; for (i = 0; i < block_nr; i++) { - pg_vec[i].buffer = alloc_one_pg_vec_page(size); + pg_vec[i].buffer = alloc_one_pg_vec_page(order); if (unlikely(!pg_vec[i].buffer)) goto out_free_pgvec; } @@ -4184,7 +4200,7 @@ out: return pg_vec; out_free_pgvec: - free_pg_vec(pg_vec, block_nr); + free_pg_vec(pg_vec, order, block_nr); pg_vec = NULL; goto out; } @@ -4194,9 +4210,9 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u, { struct pgv *pg_vec = NULL; struct packet_sock *po = pkt_sk(sk); + int was_running, order = 0; struct packet_ring_buffer *rb; struct sk_buff_head *rb_queue; - int was_running; __be16 num; int err = -EINVAL; /* Added to avoid minimal code churn */ @@ -4258,7 +4274,8 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u, goto out; err = -ENOMEM; - pg_vec = alloc_pg_vec(req); + order = get_order(req->tp_block_size); + pg_vec = alloc_pg_vec(req, order); if (unlikely(!pg_vec)) goto out; switch (po->tp_version) { @@ -4312,6 +4329,7 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u, rb->frame_size = req->tp_frame_size; spin_unlock_bh(&rb_queue->lock); + swap(rb->pg_vec_order, order); swap(rb->pg_vec_len, req->tp_block_nr); rb->pg_vec_pages = req->tp_block_size/PAGE_SIZE; @@ -4337,7 +4355,7 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u, } if (pg_vec) - free_pg_vec(pg_vec, req->tp_block_nr); + free_pg_vec(pg_vec, order, req->tp_block_nr); out: return err; } diff --git a/net/packet/internal.h b/net/packet/internal.h index 8f50036f62f0..3bb7c5fb3bff 100644 --- a/net/packet/internal.h +++ b/net/packet/internal.h @@ -64,6 +64,7 @@ struct packet_ring_buffer { unsigned int frame_size; unsigned int frame_max; + unsigned int pg_vec_order; unsigned int pg_vec_pages; unsigned int pg_vec_len; From 9ad716b95fd6c6be46a4f2d5936e514b5bcd744d Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Wed, 29 Aug 2018 12:46:08 -0700 Subject: [PATCH 0465/1762] nfp: wait for posted reconfigs when disabling the device To avoid leaking a running timer we need to wait for the posted reconfigs after netdev is unregistered. In common case the process of deinitializing the device will perform synchronous reconfigs which wait for posted requests, but especially with VXLAN ports being actively added and removed there can be a race condition leaving a timer running after adapter structure is freed leading to a crash. Add an explicit flush after deregistering and for a good measure a warning to check if timer is running just before structures are freed. Fixes: 3d780b926a12 ("nfp: add async reconfiguration mechanism") Signed-off-by: Jakub Kicinski Reviewed-by: Dirk van der Merwe Signed-off-by: David S. Miller --- .../ethernet/netronome/nfp/nfp_net_common.c | 66 ++++++++++++------- 1 file changed, 42 insertions(+), 24 deletions(-) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index a8b9fbab5f73..253bdaef1505 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -229,6 +229,45 @@ done: spin_unlock_bh(&nn->reconfig_lock); } +static void nfp_net_reconfig_sync_enter(struct nfp_net *nn) +{ + bool cancelled_timer = false; + u32 pre_posted_requests; + + spin_lock_bh(&nn->reconfig_lock); + + nn->reconfig_sync_present = true; + + if (nn->reconfig_timer_active) { + nn->reconfig_timer_active = false; + cancelled_timer = true; + } + pre_posted_requests = nn->reconfig_posted; + nn->reconfig_posted = 0; + + spin_unlock_bh(&nn->reconfig_lock); + + if (cancelled_timer) { + del_timer_sync(&nn->reconfig_timer); + nfp_net_reconfig_wait(nn, nn->reconfig_timer.expires); + } + + /* Run the posted reconfigs which were issued before we started */ + if (pre_posted_requests) { + nfp_net_reconfig_start(nn, pre_posted_requests); + nfp_net_reconfig_wait(nn, jiffies + HZ * NFP_NET_POLL_TIMEOUT); + } +} + +static void nfp_net_reconfig_wait_posted(struct nfp_net *nn) +{ + nfp_net_reconfig_sync_enter(nn); + + spin_lock_bh(&nn->reconfig_lock); + nn->reconfig_sync_present = false; + spin_unlock_bh(&nn->reconfig_lock); +} + /** * nfp_net_reconfig() - Reconfigure the firmware * @nn: NFP Net device to reconfigure @@ -242,32 +281,9 @@ done: */ int nfp_net_reconfig(struct nfp_net *nn, u32 update) { - bool cancelled_timer = false; - u32 pre_posted_requests; int ret; - spin_lock_bh(&nn->reconfig_lock); - - nn->reconfig_sync_present = true; - - if (nn->reconfig_timer_active) { - del_timer(&nn->reconfig_timer); - nn->reconfig_timer_active = false; - cancelled_timer = true; - } - pre_posted_requests = nn->reconfig_posted; - nn->reconfig_posted = 0; - - spin_unlock_bh(&nn->reconfig_lock); - - if (cancelled_timer) - nfp_net_reconfig_wait(nn, nn->reconfig_timer.expires); - - /* Run the posted reconfigs which were issued before we started */ - if (pre_posted_requests) { - nfp_net_reconfig_start(nn, pre_posted_requests); - nfp_net_reconfig_wait(nn, jiffies + HZ * NFP_NET_POLL_TIMEOUT); - } + nfp_net_reconfig_sync_enter(nn); nfp_net_reconfig_start(nn, update); ret = nfp_net_reconfig_wait(nn, jiffies + HZ * NFP_NET_POLL_TIMEOUT); @@ -3633,6 +3649,7 @@ struct nfp_net *nfp_net_alloc(struct pci_dev *pdev, bool needs_netdev, */ void nfp_net_free(struct nfp_net *nn) { + WARN_ON(timer_pending(&nn->reconfig_timer) || nn->reconfig_posted); if (nn->dp.netdev) free_netdev(nn->dp.netdev); else @@ -3920,4 +3937,5 @@ void nfp_net_clean(struct nfp_net *nn) return; unregister_netdev(nn->dp.netdev); + nfp_net_reconfig_wait_posted(nn); } From e04e7a7bbd4bbabef4e1a58367e5fc9b2edc3b10 Mon Sep 17 00:00:00 2001 From: Dexuan Cui Date: Thu, 30 Aug 2018 05:42:13 +0000 Subject: [PATCH 0466/1762] hv_netvsc: Fix a deadlock by getting rtnl lock earlier in netvsc_probe() This patch fixes the race between netvsc_probe() and rndis_set_subchannel(), which can cause a deadlock. These are the related 3 paths which show the deadlock: path #1: Workqueue: hv_vmbus_con vmbus_onmessage_work [hv_vmbus] Call Trace: schedule schedule_preempt_disabled __mutex_lock __device_attach bus_probe_device device_add vmbus_device_register vmbus_onoffer vmbus_onmessage_work process_one_work worker_thread kthread ret_from_fork path #2: schedule schedule_preempt_disabled __mutex_lock netvsc_probe vmbus_probe really_probe __driver_attach bus_for_each_dev driver_attach_async async_run_entry_fn process_one_work worker_thread kthread ret_from_fork path #3: Workqueue: events netvsc_subchan_work [hv_netvsc] Call Trace: schedule rndis_set_subchannel netvsc_subchan_work process_one_work worker_thread kthread ret_from_fork Before path #1 finishes, path #2 can start to run, because just before the "bus_probe_device(dev);" in device_add() in path #1, there is a line "object_uevent(&dev->kobj, KOBJ_ADD);", so systemd-udevd can immediately try to load hv_netvsc and hence path #2 can start to run. Next, path #2 offloads the subchannal's initialization to a workqueue, i.e. path #3, so we can end up in a deadlock situation like this: Path #2 gets the device lock, and is trying to get the rtnl lock; Path #3 gets the rtnl lock and is waiting for all the subchannel messages to be processed; Path #1 is trying to get the device lock, but since #2 is not releasing the device lock, path #1 has to sleep; since the VMBus messages are processed one by one, this means the sub-channel messages can't be procedded, so #3 has to sleep with the rtnl lock held, and finally #2 has to sleep... Now all the 3 paths are sleeping and we hit the deadlock. With the patch, we can make sure #2 gets both the device lock and the rtnl lock together, gets its job done, and releases the locks, so #1 and #3 will not be blocked for ever. Fixes: 8195b1396ec8 ("hv_netvsc: fix deadlock on hotplug") Signed-off-by: Dexuan Cui Cc: Stephen Hemminger Cc: K. Y. Srinivasan Cc: Haiyang Zhang Signed-off-by: David S. Miller --- drivers/net/hyperv/netvsc_drv.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 1121a1ec407c..70921bbe0e28 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -2206,6 +2206,16 @@ static int netvsc_probe(struct hv_device *dev, memcpy(net->dev_addr, device_info.mac_adr, ETH_ALEN); + /* We must get rtnl lock before scheduling nvdev->subchan_work, + * otherwise netvsc_subchan_work() can get rtnl lock first and wait + * all subchannels to show up, but that may not happen because + * netvsc_probe() can't get rtnl lock and as a result vmbus_onoffer() + * -> ... -> device_add() -> ... -> __device_attach() can't get + * the device lock, so all the subchannels can't be processed -- + * finally netvsc_subchan_work() hangs for ever. + */ + rtnl_lock(); + if (nvdev->num_chn > 1) schedule_work(&nvdev->subchan_work); @@ -2224,7 +2234,6 @@ static int netvsc_probe(struct hv_device *dev, else net->max_mtu = ETH_DATA_LEN; - rtnl_lock(); ret = register_netdevice(net); if (ret != 0) { pr_err("Unable to register netdev.\n"); From b0e0b0abbd5e52568e3848b0ba54a9efa3a11547 Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Thu, 30 Aug 2018 13:30:03 +0200 Subject: [PATCH 0467/1762] net/rds: RDS is not Radio Data System Getting prompt "The RDS Protocol" (RDS) is not too helpful, and it is easily confused with Radio Data System (which we may want to support in kernel, too). Signed-off-by: Pavel Machek Acked-by: Sowmini Varadhan Acked-by: Santosh Shilimkar Acked-by: Sowmini Varadhan Signed-off-by: David S. Miller --- net/rds/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/rds/Kconfig b/net/rds/Kconfig index 01b3bd6a3708..b9092111bc45 100644 --- a/net/rds/Kconfig +++ b/net/rds/Kconfig @@ -1,6 +1,6 @@ config RDS - tristate "The RDS Protocol" + tristate "The Reliable Datagram Sockets Protocol" depends on INET ---help--- The RDS (Reliable Datagram Sockets) protocol provides reliable, From 63cc357f7bba6729869565a12df08441a5995d9a Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Thu, 30 Aug 2018 14:24:29 +0200 Subject: [PATCH 0468/1762] tcp: do not restart timewait timer on rst reception RFC 1337 says: ''Ignore RST segments in TIME-WAIT state. If the 2 minute MSL is enforced, this fix avoids all three hazards.'' So with net.ipv4.tcp_rfc1337=1, expected behaviour is to have TIME-WAIT sk expire rather than removing it instantly when a reset is received. However, Linux will also re-start the TIME-WAIT timer. This causes connect to fail when tying to re-use ports or very long delays (until syn retry interval exceeds MSL). packetdrill test case: // Demonstrate bogus rearming of TIME-WAIT timer in rfc1337 mode. `sysctl net.ipv4.tcp_rfc1337=1` 0.000 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 0.000 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 0.000 bind(3, ..., ...) = 0 0.000 listen(3, 1) = 0 0.100 < S 0:0(0) win 29200 0.100 > S. 0:0(0) ack 1 0.200 < . 1:1(0) ack 1 win 257 0.200 accept(3, ..., ...) = 4 // Receive first segment 0.310 < P. 1:1001(1000) ack 1 win 46 // Send one ACK 0.310 > . 1:1(0) ack 1001 // read 1000 byte 0.310 read(4, ..., 1000) = 1000 // Application writes 100 bytes 0.350 write(4, ..., 100) = 100 0.350 > P. 1:101(100) ack 1001 // ACK 0.500 < . 1001:1001(0) ack 101 win 257 // close the connection 0.600 close(4) = 0 0.600 > F. 101:101(0) ack 1001 win 244 // Our side is in FIN_WAIT_1 & waits for ack to fin 0.7 < . 1001:1001(0) ack 102 win 244 // Our side is in FIN_WAIT_2 with no outstanding data. 0.8 < F. 1001:1001(0) ack 102 win 244 0.8 > . 102:102(0) ack 1002 win 244 // Our side is now in TIME_WAIT state, send ack for fin. 0.9 < F. 1002:1002(0) ack 102 win 244 0.9 > . 102:102(0) ack 1002 win 244 // Peer reopens with in-window SYN: 1.000 < S 1000:1000(0) win 9200 // Therefore, reply with ACK. 1.000 > . 102:102(0) ack 1002 win 244 // Peer sends RST for this ACK. Normally this RST results // in tw socket removal, but rfc1337=1 setting prevents this. 1.100 < R 1002:1002(0) win 244 // second syn. Due to rfc1337=1 expect another pure ACK. 31.0 < S 1000:1000(0) win 9200 31.0 > . 102:102(0) ack 1002 win 244 // .. and another RST from peer. 31.1 < R 1002:1002(0) win 244 31.2 `echo no timer restart;ss -m -e -a -i -n -t -o state TIME-WAIT` // third syn after one minute. Time-Wait socket should have expired by now. 63.0 < S 1000:1000(0) win 9200 // so we expect a syn-ack & 3whs to proceed from here on. 63.0 > S. 0:0(0) ack 1 Without this patch, 'ss' shows restarts of tw timer and last packet is thus just another pure ack, more than one minute later. This restores the original code from commit 283fd6cf0be690a83 ("Merge in ANK networking jumbo patch") in netdev-vger-cvs.git . For some reason the else branch was removed/lost in 1f28b683339f7 ("Merge in TCP/UDP optimizations and [..]") and timer restart became unconditional. Reported-by: Michal Tesar Signed-off-by: Florian Westphal Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/tcp_minisocks.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c index 75ef332a7caf..12affb7864d9 100644 --- a/net/ipv4/tcp_minisocks.c +++ b/net/ipv4/tcp_minisocks.c @@ -184,8 +184,9 @@ kill: inet_twsk_deschedule_put(tw); return TCP_TW_SUCCESS; } + } else { + inet_twsk_reschedule(tw, TCP_TIMEWAIT_LEN); } - inet_twsk_reschedule(tw, TCP_TIMEWAIT_LEN); if (tmp_opt.saw_tstamp) { tcptw->tw_ts_recent = tmp_opt.rcv_tsval; From 902b5417f28d955cdb4898df6ffaab15f56c5cff Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Thu, 30 Aug 2018 16:01:17 +0200 Subject: [PATCH 0469/1762] selftests: pmtu: maximum MTU for vti4 is 2^16-1-20 Since commit 82612de1c98e ("ip_tunnel: restore binding to ifaces with a large mtu"), the maximum MTU for vti4 is based on IP_MAX_MTU instead of the mysterious constant 0xFFF8. This makes this selftest fail. Fixes: 82612de1c98e ("ip_tunnel: restore binding to ifaces with a large mtu") Signed-off-by: Sabrina Dubroca Acked-by: Stefano Brivio Acked-by: Nicolas Dichtel Signed-off-by: David S. Miller --- tools/testing/selftests/net/pmtu.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh index f8cc38afffa2..0ecf2609b9a4 100755 --- a/tools/testing/selftests/net/pmtu.sh +++ b/tools/testing/selftests/net/pmtu.sh @@ -334,7 +334,7 @@ test_pmtu_vti4_link_add_mtu() { fail=0 min=68 - max=$((65528 - 20)) + max=$((65535 - 20)) # Check invalid values first for v in $((min - 1)) $((max + 1)); do ${ns_a} ip link add vti4_a mtu ${v} type vti local ${veth4_a_addr} remote ${veth4_b_addr} key 10 2>/dev/null From c81c7012e0c769b5704c2b07bd5224965e76fb70 Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Thu, 30 Aug 2018 16:01:18 +0200 Subject: [PATCH 0470/1762] selftests: pmtu: detect correct binary to ping ipv6 addresses Some systems don't have the ping6 binary anymore, and use ping for everything. Detect the absence of ping6 and try to use ping instead. Fixes: d1f1b9cbf34c ("selftests: net: Introduce first PMTU test") Signed-off-by: Sabrina Dubroca Acked-by: Stefano Brivio Signed-off-by: David S. Miller --- tools/testing/selftests/net/pmtu.sh | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh index 0ecf2609b9a4..32a194e3e07a 100755 --- a/tools/testing/selftests/net/pmtu.sh +++ b/tools/testing/selftests/net/pmtu.sh @@ -46,6 +46,9 @@ # Kselftest framework requirement - SKIP code is 4. ksft_skip=4 +# Some systems don't have a ping6 binary anymore +which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping) + tests=" pmtu_vti6_exception vti6: PMTU exceptions pmtu_vti4_exception vti4: PMTU exceptions @@ -274,7 +277,7 @@ test_pmtu_vti6_exception() { mtu "${ns_b}" veth_b 4000 mtu "${ns_a}" vti6_a 5000 mtu "${ns_b}" vti6_b 5000 - ${ns_a} ping6 -q -i 0.1 -w 2 -s 60000 ${vti6_b_addr} > /dev/null + ${ns_a} ${ping6} -q -i 0.1 -w 2 -s 60000 ${vti6_b_addr} > /dev/null # Check that exception was created if [ "$(route_get_dst_pmtu_from_exception "${ns_a}" ${vti6_b_addr})" = "" ]; then From f611a5b4a51fa36a0aa792be474f5d6aacaef7e3 Mon Sep 17 00:00:00 2001 From: Thomas Falcon Date: Thu, 30 Aug 2018 13:19:53 -0500 Subject: [PATCH 0471/1762] ibmvnic: Include missing return code checks in reset function Check the return codes of these functions and halt reset in case of failure. The driver will remain in a dormant state until the next reset event, when device initialization will be re-attempted. Signed-off-by: Thomas Falcon Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/ibmvnic.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index dafdd4ade705..4f0daf67b18d 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -1823,11 +1823,17 @@ static int do_reset(struct ibmvnic_adapter *adapter, adapter->map_id = 1; release_rx_pools(adapter); release_tx_pools(adapter); - init_rx_pools(netdev); - init_tx_pools(netdev); + rc = init_rx_pools(netdev); + if (rc) + return rc; + rc = init_tx_pools(netdev); + if (rc) + return rc; release_napi(adapter); - init_napi(adapter); + rc = init_napi(adapter); + if (rc) + return rc; } else { rc = reset_tx_pools(adapter); if (rc) From c7486104a5ce7e8763e3cb5157bba8d0f1468d87 Mon Sep 17 00:00:00 2001 From: LuckTony Date: Fri, 31 Aug 2018 09:55:06 -0700 Subject: [PATCH 0472/1762] x86/mce: Fix set_mce_nospec() to avoid #GP fault The trick with flipping bit 63 to avoid loading the address of the 1:1 mapping of the poisoned page while the 1:1 map is updated used to work when unmapping the page. But it falls down horribly when attempting to directly set the page as uncacheable. The problem is that when the cache mode is changed to uncachable, the pages needs to be flushed from the cache first. But the decoy address is non-canonical due to bit 63 flipped, and the CLFLUSH instruction throws a #GP fault. Add code to change_page_attr_set_clr() to fix the address before calling flush. Fixes: 284ce4011ba6 ("x86/memory_failure: Introduce {set, clear}_mce_nospec()") Suggested-by: Linus Torvalds Signed-off-by: Tony Luck Signed-off-by: Thomas Gleixner Acked-by: Linus Torvalds Cc: Peter Anvin Cc: Borislav Petkov Cc: linux-edac Cc: Dan Williams Cc: Dave Jiang Link: https://lkml.kernel.org/r/20180831165506.GA9605@agluck-desk --- arch/x86/mm/pageattr.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 8d6c34fe49be..51a5a69ecac9 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -1420,6 +1420,29 @@ static int __change_page_attr_set_clr(struct cpa_data *cpa, int checkalias) return 0; } +/* + * Machine check recovery code needs to change cache mode of poisoned + * pages to UC to avoid speculative access logging another error. But + * passing the address of the 1:1 mapping to set_memory_uc() is a fine + * way to encourage a speculative access. So we cheat and flip the top + * bit of the address. This works fine for the code that updates the + * page tables. But at the end of the process we need to flush the cache + * and the non-canonical address causes a #GP fault when used by the + * CLFLUSH instruction. + * + * But in the common case we already have a canonical address. This code + * will fix the top bit if needed and is a no-op otherwise. + */ +static inline unsigned long make_addr_canonical_again(unsigned long addr) +{ +#ifdef CONFIG_X86_64 + return (long)(addr << 1) >> 1; +#else + return addr; +#endif +} + + static int change_page_attr_set_clr(unsigned long *addr, int numpages, pgprot_t mask_set, pgprot_t mask_clr, int force_split, int in_flag, @@ -1465,7 +1488,7 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages, * Save address for cache flush. *addr is modified in the call * to __change_page_attr_set_clr() below. */ - baddr = *addr; + baddr = make_addr_canonical_again(*addr); } /* Must avoid aliasing mappings in the highmem code */ From c1d0af1a1d5dfde880f588eceb4c00710e0f60ff Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 24 Aug 2018 08:07:52 +0200 Subject: [PATCH 0473/1762] kernel/dma/direct: take DMA offset into account in dma_direct_supported When a device has a DMA offset the dma capable result will change due to the difference between the physical and DMA address. Take that into account. Signed-off-by: Christoph Hellwig Reviewed-by: Benjamin Herrenschmidt Reviewed-by: Robin Murphy --- kernel/dma/direct.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index 1c35b7b945d0..de87b0282e74 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -168,7 +168,7 @@ int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, int nents, int dma_direct_supported(struct device *dev, u64 mask) { #ifdef CONFIG_ZONE_DMA - if (mask < DMA_BIT_MASK(ARCH_ZONE_DMA_BITS)) + if (mask < phys_to_dma(dev, DMA_BIT_MASK(ARCH_ZONE_DMA_BITS))) return 0; #else /* @@ -177,7 +177,7 @@ int dma_direct_supported(struct device *dev, u64 mask) * memory, or by providing a ZONE_DMA32. If neither is the case, the * architecture needs to use an IOMMU instead of the direct mapping. */ - if (mask < DMA_BIT_MASK(32)) + if (mask < phys_to_dma(dev, DMA_BIT_MASK(32))) return 0; #endif /* From bcd8e91f98c156f4b1ebcfacae675f9cfd962441 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sat, 1 Sep 2018 12:45:04 -0400 Subject: [PATCH 0474/1762] ext4: avoid arithemetic overflow that can trigger a BUG A maliciously crafted file system can cause an overflow when the results of a 64-bit calculation is stored into a 32-bit length parameter. https://bugzilla.kernel.org/show_bug.cgi?id=200623 Signed-off-by: Theodore Ts'o Reported-by: Wen Xu Cc: stable@vger.kernel.org --- fs/ext4/ext4.h | 3 +++ fs/ext4/inode.c | 8 ++++++-- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 249bcee4d7b2..ac05bd86643a 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -686,6 +686,9 @@ enum { /* Max physical block we can address w/o extents */ #define EXT4_MAX_BLOCK_FILE_PHYS 0xFFFFFFFF +/* Max logical block we can support */ +#define EXT4_MAX_LOGICAL_BLOCK 0xFFFFFFFF + /* * Structure of an inode on the disk */ diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 8f6ad7667974..694f31364206 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3412,12 +3412,16 @@ static int ext4_iomap_begin(struct inode *inode, loff_t offset, loff_t length, { struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); unsigned int blkbits = inode->i_blkbits; - unsigned long first_block = offset >> blkbits; - unsigned long last_block = (offset + length - 1) >> blkbits; + unsigned long first_block, last_block; struct ext4_map_blocks map; bool delalloc = false; int ret; + if ((offset >> blkbits) > EXT4_MAX_LOGICAL_BLOCK) + return -EINVAL; + first_block = offset >> blkbits; + last_block = min_t(loff_t, (offset + length - 1) >> blkbits, + EXT4_MAX_LOGICAL_BLOCK); if (flags & IOMAP_REPORT) { if (ext4_has_inline_data(inode)) { From 9b25436662d5fb4c66eb527ead53cab15f596ee0 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Mon, 27 Aug 2018 14:51:54 -0700 Subject: [PATCH 0475/1762] random: make CPU trust a boot parameter Instead of forcing a distro or other system builder to choose at build time whether the CPU is trusted for CRNG seeding via CONFIG_RANDOM_TRUST_CPU, provide a boot-time parameter for end users to control the choice. The CONFIG will set the default state instead. Signed-off-by: Kees Cook Signed-off-by: Theodore Ts'o --- Documentation/admin-guide/kernel-parameters.txt | 6 ++++++ drivers/char/Kconfig | 4 ++-- drivers/char/random.c | 11 ++++++++--- 3 files changed, 16 insertions(+), 5 deletions(-) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 0c8f7889efa1..227c5c6fa4c1 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3390,6 +3390,12 @@ ramdisk_size= [RAM] Sizes of RAM disks in kilobytes See Documentation/blockdev/ramdisk.txt. + random.trust_cpu={on,off} + [KNL] Enable or disable trusting the use of the + CPU's random number generator (if available) to + fully seed the kernel's CRNG. Default is controlled + by CONFIG_RANDOM_TRUST_CPU. + ras=option[,option,...] [KNL] RAS-specific options cec_disable [X86] diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index ce277ee0a28a..40728491f37b 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -566,5 +566,5 @@ config RANDOM_TRUST_CPU that CPU manufacturer (perhaps with the insistence or mandate of a Nation State's intelligence or law enforcement agencies) has not installed a hidden back door to compromise the CPU's - random number generation facilities. - + random number generation facilities. This can also be configured + at boot with "random.trust_cpu=on/off". diff --git a/drivers/char/random.c b/drivers/char/random.c index bf5f99fc36f1..c75b6cdf0053 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -779,6 +779,13 @@ static struct crng_state **crng_node_pool __read_mostly; static void invalidate_batched_entropy(void); +static bool trust_cpu __ro_after_init = IS_ENABLED(CONFIG_RANDOM_TRUST_CPU); +static int __init parse_trust_cpu(char *arg) +{ + return kstrtobool(arg, &trust_cpu); +} +early_param("random.trust_cpu", parse_trust_cpu); + static void crng_initialize(struct crng_state *crng) { int i; @@ -799,12 +806,10 @@ static void crng_initialize(struct crng_state *crng) } crng->state[i] ^= rv; } -#ifdef CONFIG_RANDOM_TRUST_CPU - if (arch_init) { + if (trust_cpu && arch_init) { crng_init = 2; pr_notice("random: crng done (trusting CPU's manufacturer)\n"); } -#endif crng->init_time = jiffies - CRNG_RESEED_INTERVAL - 1; } From 4274f516d4bc50648a4d97e4f67ecbd7b65cde4a Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sat, 1 Sep 2018 14:42:14 -0400 Subject: [PATCH 0476/1762] ext4: recalucate superblock checksum after updating free blocks/inodes When mounting the superblock, ext4_fill_super() calculates the free blocks and free inodes and stores them in the superblock. It's not strictly necessary, since we don't use them any more, but it's nice to keep them roughly aligned to reality. Since it's not critical for file system correctness, the code doesn't call ext4_commit_super(). The problem is that it's in ext4_commit_super() that we recalculate the superblock checksum. So if we're not going to call ext4_commit_super(), we need to call ext4_superblock_csum_set() to make sure the superblock checksum is consistent. Most of the time, this doesn't matter, since we end up calling ext4_commit_super() very soon thereafter, and definitely by the time the file system is unmounted. However, it doesn't work in this sequence: mke2fs -Fq -t ext4 /dev/vdc 128M mount /dev/vdc /vdc cp xfstests/git-versions /vdc godown /vdc umount /vdc mount /dev/vdc tune2fs -l /dev/vdc With this commit, the "tune2fs -l" no longer fails. Reported-by: Chengguang Xu Signed-off-by: Theodore Ts'o Cc: stable@vger.kernel.org --- fs/ext4/super.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index f7750bc5b85a..e41da553b430 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -4378,11 +4378,13 @@ no_journal: block = ext4_count_free_clusters(sb); ext4_free_blocks_count_set(sbi->s_es, EXT4_C2B(sbi, block)); + ext4_superblock_csum_set(sb); err = percpu_counter_init(&sbi->s_freeclusters_counter, block, GFP_KERNEL); if (!err) { unsigned long freei = ext4_count_free_inodes(sb); sbi->s_es->s_free_inodes_count = cpu_to_le32(freei); + ext4_superblock_csum_set(sb); err = percpu_counter_init(&sbi->s_freeinodes_counter, freei, GFP_KERNEL); } From e78e5a91456fcecaa2efbb3706572fe043766f4d Mon Sep 17 00:00:00 2001 From: Samuel Neves Date: Sat, 1 Sep 2018 21:14:52 +0100 Subject: [PATCH 0477/1762] x86/vdso: Fix lsl operand order In the __getcpu function, lsl is using the wrong target and destination registers. Luckily, the compiler tends to choose %eax for both variables, so it has been working so far. Fixes: a582c540ac1b ("x86/vdso: Use RDPID in preference to LSL when available") Signed-off-by: Samuel Neves Signed-off-by: Thomas Gleixner Acked-by: Andy Lutomirski Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180901201452.27828-1-sneves@dei.uc.pt --- arch/x86/include/asm/vgtod.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h index fb856c9f0449..53748541c487 100644 --- a/arch/x86/include/asm/vgtod.h +++ b/arch/x86/include/asm/vgtod.h @@ -93,7 +93,7 @@ static inline unsigned int __getcpu(void) * * If RDPID is available, use it. */ - alternative_io ("lsl %[p],%[seg]", + alternative_io ("lsl %[seg],%[p]", ".byte 0xf3,0x0f,0xc7,0xf8", /* RDPID %eax/rax */ X86_FEATURE_RDPID, [p] "=a" (p), [seg] "r" (__PER_CPU_SEG)); From 93bbadd6e0a2a58e49d265b9b1aa58e621b60a26 Mon Sep 17 00:00:00 2001 From: Alexey Kodanev Date: Thu, 30 Aug 2018 19:11:24 +0300 Subject: [PATCH 0478/1762] ipv6: don't get lwtstate twice in ip6_rt_copy_init() Commit 80f1a0f4e0cd ("net/ipv6: Put lwtstate when destroying fib6_info") partially fixed the kmemleak [1], lwtstate can be copied from fib6_info, with ip6_rt_copy_init(), and it should be done only once there. rt->dst.lwtstate is set by ip6_rt_init_dst(), at the start of the function ip6_rt_copy_init(), so there is no need to get it again at the end. With this patch, lwtstate also isn't copied from RTF_REJECT routes. [1]: unreferenced object 0xffff880b6aaa14e0 (size 64): comm "ip", pid 10577, jiffies 4295149341 (age 1273.903s) hex dump (first 32 bytes): 01 00 04 00 04 00 00 00 10 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000018664623>] lwtunnel_build_state+0x1bc/0x420 [<00000000b73aa29a>] ip6_route_info_create+0x9f7/0x1fd0 [<00000000ee2c5d1f>] ip6_route_add+0x14/0x70 [<000000008537b55c>] inet6_rtm_newroute+0xd9/0xe0 [<000000002acc50f5>] rtnetlink_rcv_msg+0x66f/0x8e0 [<000000008d9cd381>] netlink_rcv_skb+0x268/0x3b0 [<000000004c893c76>] netlink_unicast+0x417/0x5a0 [<00000000f2ab1afb>] netlink_sendmsg+0x70b/0xc30 [<00000000890ff0aa>] sock_sendmsg+0xb1/0xf0 [<00000000a2e7b66f>] ___sys_sendmsg+0x659/0x950 [<000000001e7426c8>] __sys_sendmsg+0xde/0x170 [<00000000fe411443>] do_syscall_64+0x9f/0x4a0 [<000000001be7b28b>] entry_SYSCALL_64_after_hwframe+0x49/0xbe [<000000006d21f353>] 0xffffffffffffffff Fixes: 6edb3c96a5f0 ("net/ipv6: Defer initialization of dst to data path") Signed-off-by: Alexey Kodanev Reviewed-by: David Ahern Signed-off-by: David S. Miller --- net/ipv6/route.c | 1 - 1 file changed, 1 deletion(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index c4ea13e8360b..18e00ce1719a 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -996,7 +996,6 @@ static void ip6_rt_copy_init(struct rt6_info *rt, struct fib6_info *ort) rt->rt6i_src = ort->fib6_src; #endif rt->rt6i_prefsrc = ort->fib6_prefsrc; - rt->dst.lwtstate = lwtstate_get(ort->fib6_nh.nh_lwtstate); } static struct fib6_node* fib6_backtrack(struct fib6_node *fn, From 5a7faef72eb9d51487feac467c8c68afa459534c Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 28 Aug 2018 11:25:51 +0200 Subject: [PATCH 0479/1762] sparc: set a default 32-bit dma mask for OF devices This keeps the historic default behavior for devices without a DMA mask, but removes the warning about a lacking DMA mask for doing DMA without a mask. Reported-by: Meelis Roos Signed-off-by: Christoph Hellwig Tested-by: Guenter Roeck --- arch/sparc/kernel/of_device_32.c | 4 ++++ arch/sparc/kernel/of_device_64.c | 3 +++ 2 files changed, 7 insertions(+) diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c index 3641a294ed54..e4abe9b8f97a 100644 --- a/arch/sparc/kernel/of_device_32.c +++ b/arch/sparc/kernel/of_device_32.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include @@ -381,6 +382,9 @@ static struct platform_device * __init scan_one_device(struct device_node *dp, else dev_set_name(&op->dev, "%08x", dp->phandle); + op->dev.coherent_dma_mask = DMA_BIT_MASK(32); + op->dev.dma_mask = &op->dev.coherent_dma_mask; + if (of_device_register(op)) { printk("%s: Could not register of device.\n", dp->full_name); diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c index 44e4d4435bed..6df6086968c6 100644 --- a/arch/sparc/kernel/of_device_64.c +++ b/arch/sparc/kernel/of_device_64.c @@ -2,6 +2,7 @@ #include #include #include +#include #include #include #include @@ -675,6 +676,8 @@ static struct platform_device * __init scan_one_device(struct device_node *dp, dev_set_name(&op->dev, "root"); else dev_set_name(&op->dev, "%08x", dp->phandle); + op->dev.coherent_dma_mask = DMA_BIT_MASK(32); + op->dev.dma_mask = &op->dev.coherent_dma_mask; if (of_device_register(op)) { printk("%s: Could not register of device.\n", From 8c89ef7b6b64ba093239305f77a485905d03f7bf Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 31 Aug 2018 16:13:07 +0200 Subject: [PATCH 0480/1762] of/platform: initialise AMBA default DMA masks This addresses a v4.19-rc1 regression in the PL111 DRM driver in drivers/gpu/pl111/* The driver uses the CMA KMS helpers and will thus at some point call down to dma_alloc_attrs() to allocate a chunk of contigous DMA memory for the framebuffer. It appears that in v4.18, it was OK that this (and other DMA mastering AMBA devices) left dev->coherent_dma_mask blank (zero). In v4.19-rc1 the WARN_ON_ONCE(dev && !dev->coherent_dma_mask) in dma_alloc_attrs() in include/linux/dma-mapping.h is triggered. The allocation later fails when get_coherent_dma_mask() is called from __dma_alloc() and __dma_alloc() returns NULL: drm-clcd-pl111 dev:20: coherent DMA mask is unset drm-clcd-pl111 dev:20: [drm:drm_fb_helper_fbdev_setup] *ERROR* Failed to set fbdev configuration It turns out that in commit 4d8bde883bfb ("OF: Don't set default coherent DMA mask") the OF core stops setting the default DMA mask on new devices, especially those lines of the patch: - if (!dev->coherent_dma_mask) - dev->coherent_dma_mask = DMA_BIT_MASK(32); Robin Murphy solved a similar problem in a5516219b102 ("of/platform: Initialise default DMA masks") by simply assigning dev.coherent_dma_mask and the dev.dma_mask to point to the same when creating devices from the device tree, and introducing the same code into the code path creating AMBA/PrimeCell devices solved my problem, graphics now come up. The code simply assumes that the device can access all of the system memory by setting the coherent DMA mask to 0xffffffff when creating a device from the device tree, which is crude, but seems to be what kernel v4.18 assumed. The AMBA PrimeCells do not differ between coherent and streaming DMA so we can just assign the same to any DMA mask. Possibly drivers should augment their coherent DMA mask in accordance with "dma-ranges" from the device tree if more finegranular masking is needed. Reported-by: Russell King Fixes: 4d8bde883bfb ("OF: Don't set default coherent DMA mask") Cc: Russell King Cc: Robin Murphy Signed-off-by: Linus Walleij Signed-off-by: Christoph Hellwig --- drivers/of/platform.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 7ba90c290a42..6c59673933e9 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -241,6 +241,10 @@ static struct amba_device *of_amba_device_create(struct device_node *node, if (!dev) goto err_clear_flag; + /* AMBA devices only support a single DMA mask */ + dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + dev->dev.dma_mask = &dev->dev.coherent_dma_mask; + /* setup generic device info */ dev->dev.of_node = of_node_get(node); dev->dev.fwnode = &node->fwnode; From 65099ea85e885c3ea1272eca8774b771419d8ce8 Mon Sep 17 00:00:00 2001 From: Matt Ranostay Date: Sat, 25 Aug 2018 02:00:48 -0700 Subject: [PATCH 0481/1762] Revert "iio: temperature: maxim_thermocouple: add MAX31856 part" This reverts commit 535fba29b3e1afef4ba201b3c69a6992583ec0bd. Seems the submitter (er me, hang head in shame) didn't look at the datasheet enough to see that the registers are quite different. This needs to be reverted because a) would never work b) to open it be added to a Maxim RTDs (Resistance Temperature Detectors) under development by author Signed-off-by: Matt Ranostay Signed-off-by: Jonathan Cameron --- drivers/iio/temperature/maxim_thermocouple.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/iio/temperature/maxim_thermocouple.c b/drivers/iio/temperature/maxim_thermocouple.c index 54e383231d1e..c31b9633f32d 100644 --- a/drivers/iio/temperature/maxim_thermocouple.c +++ b/drivers/iio/temperature/maxim_thermocouple.c @@ -258,7 +258,6 @@ static int maxim_thermocouple_remove(struct spi_device *spi) static const struct spi_device_id maxim_thermocouple_id[] = { {"max6675", MAX6675}, {"max31855", MAX31855}, - {"max31856", MAX31855}, {}, }; MODULE_DEVICE_TABLE(spi, maxim_thermocouple_id); From ff924c5a1ec7548825cc2d07980b03be4224ffac Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sat, 1 Sep 2018 21:01:28 -0700 Subject: [PATCH 0482/1762] x86/pti: Fix section mismatch warning/error Fix the section mismatch warning in arch/x86/mm/pti.c: WARNING: vmlinux.o(.text+0x6972a): Section mismatch in reference from the function pti_clone_pgtable() to the function .init.text:pti_user_pagetable_walk_pte() The function pti_clone_pgtable() references the function __init pti_user_pagetable_walk_pte(). This is often because pti_clone_pgtable lacks a __init annotation or the annotation of pti_user_pagetable_walk_pte is wrong. FATAL: modpost: Section mismatches detected. Fixes: 85900ea51577 ("x86/pti: Map the vsyscall page if needed") Reported-by: kbuild test robot Signed-off-by: Randy Dunlap Signed-off-by: Thomas Gleixner Cc: Andy Lutomirski Link: https://lkml.kernel.org/r/43a6d6a3-d69d-5eda-da09-0b1c88215a2a@infradead.org --- arch/x86/mm/pti.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c index 31341ae7309f..c1fc1ae6b429 100644 --- a/arch/x86/mm/pti.c +++ b/arch/x86/mm/pti.c @@ -248,7 +248,7 @@ static pmd_t *pti_user_pagetable_walk_pmd(unsigned long address) * * Returns a pointer to a PTE on success, or NULL on failure. */ -static __init pte_t *pti_user_pagetable_walk_pte(unsigned long address) +static pte_t *pti_user_pagetable_walk_pte(unsigned long address) { gfp_t gfp = (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO); pmd_t *pmd; From 370a132bb2227ff76278f98370e0e701d86ff752 Mon Sep 17 00:00:00 2001 From: Prarit Bhargava Date: Tue, 31 Jul 2018 07:27:39 -0400 Subject: [PATCH 0483/1762] x86/microcode: Make sure boot_cpu_data.microcode is up-to-date When preparing an MCE record for logging, boot_cpu_data.microcode is used to read out the microcode revision on the box. However, on systems where late microcode update has happened, the microcode revision output in a MCE log record is wrong because boot_cpu_data.microcode is not updated when the microcode gets updated. But, the microcode revision saved in boot_cpu_data's microcode member should be kept up-to-date, regardless, for consistency. Make it so. Fixes: fa94d0c6e0f3 ("x86/MCE: Save microcode revision in machine check records") Signed-off-by: Prarit Bhargava Signed-off-by: Borislav Petkov Signed-off-by: Thomas Gleixner Cc: Tony Luck Cc: sironi@amazon.de Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/20180731112739.32338-1-prarit@redhat.com --- arch/x86/kernel/cpu/microcode/amd.c | 4 ++++ arch/x86/kernel/cpu/microcode/intel.c | 4 ++++ 2 files changed, 8 insertions(+) diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c index 0624957aa068..602f17134103 100644 --- a/arch/x86/kernel/cpu/microcode/amd.c +++ b/arch/x86/kernel/cpu/microcode/amd.c @@ -537,6 +537,10 @@ static enum ucode_state apply_microcode_amd(int cpu) uci->cpu_sig.rev = mc_amd->hdr.patch_id; c->microcode = mc_amd->hdr.patch_id; + /* Update boot_cpu_data's revision too, if we're on the BSP: */ + if (c->cpu_index == boot_cpu_data.cpu_index) + boot_cpu_data.microcode = mc_amd->hdr.patch_id; + return UCODE_UPDATED; } diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c index 97ccf4c3b45b..256d336cbc04 100644 --- a/arch/x86/kernel/cpu/microcode/intel.c +++ b/arch/x86/kernel/cpu/microcode/intel.c @@ -851,6 +851,10 @@ static enum ucode_state apply_microcode_intel(int cpu) uci->cpu_sig.rev = rev; c->microcode = rev; + /* Update boot_cpu_data's revision too, if we're on the BSP: */ + if (c->cpu_index == boot_cpu_data.cpu_index) + boot_cpu_data.microcode = rev; + return UCODE_UPDATED; } From 8da38ebaad23fe1b0c4a205438676f6356607cfc Mon Sep 17 00:00:00 2001 From: Filippo Sironi Date: Tue, 31 Jul 2018 17:29:30 +0200 Subject: [PATCH 0484/1762] x86/microcode: Update the new microcode revision unconditionally Handle the case where microcode gets loaded on the BSP's hyperthread sibling first and the boot_cpu_data's microcode revision doesn't get updated because of early exit due to the siblings sharing a microcode engine. For that, simply write the updated revision on all CPUs unconditionally. Signed-off-by: Filippo Sironi Signed-off-by: Borislav Petkov Signed-off-by: Thomas Gleixner Cc: prarit@redhat.com Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1533050970-14385-1-git-send-email-sironi@amazon.de --- arch/x86/kernel/cpu/microcode/amd.c | 22 +++++++++++++--------- arch/x86/kernel/cpu/microcode/intel.c | 13 ++++++++----- 2 files changed, 21 insertions(+), 14 deletions(-) diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c index 602f17134103..07b5fc00b188 100644 --- a/arch/x86/kernel/cpu/microcode/amd.c +++ b/arch/x86/kernel/cpu/microcode/amd.c @@ -504,6 +504,7 @@ static enum ucode_state apply_microcode_amd(int cpu) struct microcode_amd *mc_amd; struct ucode_cpu_info *uci; struct ucode_patch *p; + enum ucode_state ret; u32 rev, dummy; BUG_ON(raw_smp_processor_id() != cpu); @@ -521,9 +522,8 @@ static enum ucode_state apply_microcode_amd(int cpu) /* need to apply patch? */ if (rev >= mc_amd->hdr.patch_id) { - c->microcode = rev; - uci->cpu_sig.rev = rev; - return UCODE_OK; + ret = UCODE_OK; + goto out; } if (__apply_microcode_amd(mc_amd)) { @@ -531,17 +531,21 @@ static enum ucode_state apply_microcode_amd(int cpu) cpu, mc_amd->hdr.patch_id); return UCODE_ERROR; } - pr_info("CPU%d: new patch_level=0x%08x\n", cpu, - mc_amd->hdr.patch_id); - uci->cpu_sig.rev = mc_amd->hdr.patch_id; - c->microcode = mc_amd->hdr.patch_id; + rev = mc_amd->hdr.patch_id; + ret = UCODE_UPDATED; + + pr_info("CPU%d: new patch_level=0x%08x\n", cpu, rev); + +out: + uci->cpu_sig.rev = rev; + c->microcode = rev; /* Update boot_cpu_data's revision too, if we're on the BSP: */ if (c->cpu_index == boot_cpu_data.cpu_index) - boot_cpu_data.microcode = mc_amd->hdr.patch_id; + boot_cpu_data.microcode = rev; - return UCODE_UPDATED; + return ret; } static int install_equiv_cpu_table(const u8 *buf) diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c index 256d336cbc04..16936a24795c 100644 --- a/arch/x86/kernel/cpu/microcode/intel.c +++ b/arch/x86/kernel/cpu/microcode/intel.c @@ -795,6 +795,7 @@ static enum ucode_state apply_microcode_intel(int cpu) struct ucode_cpu_info *uci = ucode_cpu_info + cpu; struct cpuinfo_x86 *c = &cpu_data(cpu); struct microcode_intel *mc; + enum ucode_state ret; static int prev_rev; u32 rev; @@ -817,9 +818,8 @@ static enum ucode_state apply_microcode_intel(int cpu) */ rev = intel_get_microcode_revision(); if (rev >= mc->hdr.rev) { - uci->cpu_sig.rev = rev; - c->microcode = rev; - return UCODE_OK; + ret = UCODE_OK; + goto out; } /* @@ -848,14 +848,17 @@ static enum ucode_state apply_microcode_intel(int cpu) prev_rev = rev; } + ret = UCODE_UPDATED; + +out: uci->cpu_sig.rev = rev; - c->microcode = rev; + c->microcode = rev; /* Update boot_cpu_data's revision too, if we're on the BSP: */ if (c->cpu_index == boot_cpu_data.cpu_index) boot_cpu_data.microcode = rev; - return UCODE_UPDATED; + return ret; } static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size, From fd65465b7016dc6d9fa5c2f39cc706c231c9a089 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 31 Aug 2018 18:34:55 +0900 Subject: [PATCH 0485/1762] kconfig: do not require pkg-config on make {menu,n}config Meelis Roos reported a {menu,n}config regression: "I have libncurses devel package installed in the default system location (as do 99%+ on actual developers probably) and in this case, pkg-config is useless. pkg-config is needed only when libraries and headers are installed in non-default locations but it is bad to require installation of pkg-config on all the machines where make menuconfig would be possibly run." For {menu,n}config, do not use pkg-config if it is not installed. For {g,x}config, keep checking pkg-config since we really rely on it for finding the installation paths of the required packages. Fixes: 4ab3b80159d4 ("kconfig: check for pkg-config on make {menu,n,g,x}config") Reported-by: Meelis Roos Signed-off-by: Masahiro Yamada Tested-by: Meelis Roos Tested-by: Randy Dunlap --- Documentation/process/changes.rst | 2 +- scripts/kconfig/Makefile | 1 - scripts/kconfig/check-pkgconfig.sh | 8 -------- scripts/kconfig/gconf-cfg.sh | 7 +++++++ scripts/kconfig/mconf-cfg.sh | 27 +++++++++++++++------------ scripts/kconfig/nconf-cfg.sh | 27 +++++++++++++++------------ scripts/kconfig/qconf-cfg.sh | 7 +++++++ 7 files changed, 45 insertions(+), 34 deletions(-) delete mode 100644 scripts/kconfig/check-pkgconfig.sh diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst index 61f918b10a0c..d1bf143b446f 100644 --- a/Documentation/process/changes.rst +++ b/Documentation/process/changes.rst @@ -86,7 +86,7 @@ pkg-config The build system, as of 4.18, requires pkg-config to check for installed kconfig tools and to determine flags settings for use in -'make {menu,n,g,x}config'. Previously pkg-config was being used but not +'make {g,x}config'. Previously pkg-config was being used but not verified or documented. Flex diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile index 4a7bd2192073..67ed9f6ccdf8 100644 --- a/scripts/kconfig/Makefile +++ b/scripts/kconfig/Makefile @@ -221,7 +221,6 @@ $(obj)/zconf.tab.o: $(obj)/zconf.lex.c # check if necessary packages are available, and configure build flags define filechk_conf_cfg - $(CONFIG_SHELL) $(srctree)/scripts/kconfig/check-pkgconfig.sh; \ $(CONFIG_SHELL) $< endef diff --git a/scripts/kconfig/check-pkgconfig.sh b/scripts/kconfig/check-pkgconfig.sh deleted file mode 100644 index 7a1c40bfb58c..000000000000 --- a/scripts/kconfig/check-pkgconfig.sh +++ /dev/null @@ -1,8 +0,0 @@ -#!/bin/sh -# SPDX-License-Identifier: GPL-2.0 -# Check for pkg-config presence - -if [ -z $(command -v pkg-config) ]; then - echo "'make *config' requires 'pkg-config'. Please install it." 1>&2 - exit 1 -fi diff --git a/scripts/kconfig/gconf-cfg.sh b/scripts/kconfig/gconf-cfg.sh index 533b3d8f8f08..480ecd8b9f41 100755 --- a/scripts/kconfig/gconf-cfg.sh +++ b/scripts/kconfig/gconf-cfg.sh @@ -3,6 +3,13 @@ PKG="gtk+-2.0 gmodule-2.0 libglade-2.0" +if [ -z "$(command -v pkg-config)" ]; then + echo >&2 "*" + echo >&2 "* 'make gconfig' requires 'pkg-config'. Please install it." + echo >&2 "*" + exit 1 +fi + if ! pkg-config --exists $PKG; then echo >&2 "*" echo >&2 "* Unable to find the GTK+ installation. Please make sure that" diff --git a/scripts/kconfig/mconf-cfg.sh b/scripts/kconfig/mconf-cfg.sh index e6f9facd0077..c812872d7f9d 100755 --- a/scripts/kconfig/mconf-cfg.sh +++ b/scripts/kconfig/mconf-cfg.sh @@ -4,20 +4,23 @@ PKG="ncursesw" PKG2="ncurses" -if pkg-config --exists $PKG; then - echo cflags=\"$(pkg-config --cflags $PKG)\" - echo libs=\"$(pkg-config --libs $PKG)\" - exit 0 +if [ -n "$(command -v pkg-config)" ]; then + if pkg-config --exists $PKG; then + echo cflags=\"$(pkg-config --cflags $PKG)\" + echo libs=\"$(pkg-config --libs $PKG)\" + exit 0 + fi + + if pkg-config --exists $PKG2; then + echo cflags=\"$(pkg-config --cflags $PKG2)\" + echo libs=\"$(pkg-config --libs $PKG2)\" + exit 0 + fi fi -if pkg-config --exists $PKG2; then - echo cflags=\"$(pkg-config --cflags $PKG2)\" - echo libs=\"$(pkg-config --libs $PKG2)\" - exit 0 -fi - -# Unfortunately, some distributions (e.g. openSUSE) cannot find ncurses -# by pkg-config. +# Check the default paths in case pkg-config is not installed. +# (Even if it is installed, some distributions such as openSUSE cannot +# find ncurses by pkg-config.) if [ -f /usr/include/ncursesw/ncurses.h ]; then echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncursesw\" echo libs=\"-lncursesw\" diff --git a/scripts/kconfig/nconf-cfg.sh b/scripts/kconfig/nconf-cfg.sh index 42f5ac73548e..001559ef0a60 100644 --- a/scripts/kconfig/nconf-cfg.sh +++ b/scripts/kconfig/nconf-cfg.sh @@ -4,20 +4,23 @@ PKG="ncursesw menuw panelw" PKG2="ncurses menu panel" -if pkg-config --exists $PKG; then - echo cflags=\"$(pkg-config --cflags $PKG)\" - echo libs=\"$(pkg-config --libs $PKG)\" - exit 0 +if [ -n "$(command -v pkg-config)" ]; then + if pkg-config --exists $PKG; then + echo cflags=\"$(pkg-config --cflags $PKG)\" + echo libs=\"$(pkg-config --libs $PKG)\" + exit 0 + fi + + if pkg-config --exists $PKG2; then + echo cflags=\"$(pkg-config --cflags $PKG2)\" + echo libs=\"$(pkg-config --libs $PKG2)\" + exit 0 + fi fi -if pkg-config --exists $PKG2; then - echo cflags=\"$(pkg-config --cflags $PKG2)\" - echo libs=\"$(pkg-config --libs $PKG2)\" - exit 0 -fi - -# Unfortunately, some distributions (e.g. openSUSE) cannot find ncurses -# by pkg-config. +# Check the default paths in case pkg-config is not installed. +# (Even if it is installed, some distributions such as openSUSE cannot +# find ncurses by pkg-config.) if [ -f /usr/include/ncursesw/ncurses.h ]; then echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncursesw\" echo libs=\"-lncursesw -lmenuw -lpanelw\" diff --git a/scripts/kconfig/qconf-cfg.sh b/scripts/kconfig/qconf-cfg.sh index 0862e1562536..02ccc0ae1031 100755 --- a/scripts/kconfig/qconf-cfg.sh +++ b/scripts/kconfig/qconf-cfg.sh @@ -4,6 +4,13 @@ PKG="Qt5Core Qt5Gui Qt5Widgets" PKG2="QtCore QtGui" +if [ -z "$(command -v pkg-config)" ]; then + echo >&2 "*" + echo >&2 "* 'make xconfig' requires 'pkg-config'. Please install it." + echo >&2 "*" + exit 1 +fi + if pkg-config --exists $PKG; then echo cflags=\"-std=c++11 -fPIC $(pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets)\" echo libs=\"$(pkg-config --libs $PKG)\" From 914b087ff9e0e9a399a4927fa30793064afc0178 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 28 Aug 2018 12:59:10 -0700 Subject: [PATCH 0486/1762] kbuild: make missing $DEPMOD a Warning instead of an Error When $DEPMOD is not found, only print a warning instead of exiting with an error message and error status: Warning: 'make modules_install' requires /sbin/depmod. Please install it. This is probably in the kmod package. Change the Error to a Warning because "not all build hosts for cross compiling Linux are Linux systems and are able to provide a working port of depmod, especially at the file patch /sbin/depmod." I.e., "make modules_install" may be used to copy/install the loadable modules files to a target directory on a build system and then transferred to an embedded device where /sbin/depmod is run instead of it being run on the build system. Fixes: 934193a654c1 ("kbuild: verify that $DEPMOD is installed") Signed-off-by: Randy Dunlap Reported-by: H. Nikolaus Schaller Cc: stable@vger.kernel.org Cc: Lucas De Marchi Cc: Lucas De Marchi Cc: Michal Marek Cc: Jessica Yu Cc: Chih-Wei Huang Signed-off-by: Masahiro Yamada --- scripts/depmod.sh | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/scripts/depmod.sh b/scripts/depmod.sh index 999d585eaa73..e5f0aad75b96 100755 --- a/scripts/depmod.sh +++ b/scripts/depmod.sh @@ -15,9 +15,9 @@ if ! test -r System.map ; then fi if [ -z $(command -v $DEPMOD) ]; then - echo "'make modules_install' requires $DEPMOD. Please install it." >&2 + echo "Warning: 'make modules_install' requires $DEPMOD. Please install it." >&2 echo "This is probably in the kmod package." >&2 - exit 1 + exit 0 fi # older versions of depmod require the version string to start with three From a13bf65f3f2e36008ea60b49d3bda2527e09fd9c Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Fri, 31 Aug 2018 10:51:14 +0200 Subject: [PATCH 0487/1762] iio: imu: st_lsm6dsx: take into account ts samples in wm configuration Take into account hw timer samples in pattern length computation done in st_lsm6dsx_update_watermark routine for watermark configuration. Moreover use samples in pattern (sip) already computed in st_lsm6dsx_update_decimators routine Fixes: 213451076bd3 ("iio: imu: st_lsm6dsx: add hw timestamp support") Signed-off-by: Lorenzo Bianconi Signed-off-by: Jonathan Cameron --- drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c index 7589f2ad1dae..631360b14ca7 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c @@ -187,12 +187,15 @@ static int st_lsm6dsx_set_fifo_odr(struct st_lsm6dsx_sensor *sensor, int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark) { - u16 fifo_watermark = ~0, cur_watermark, sip = 0, fifo_th_mask; + u16 fifo_watermark = ~0, cur_watermark, fifo_th_mask; struct st_lsm6dsx_hw *hw = sensor->hw; struct st_lsm6dsx_sensor *cur_sensor; int i, err, data; __le16 wdata; + if (!hw->sip) + return 0; + for (i = 0; i < ST_LSM6DSX_ID_MAX; i++) { cur_sensor = iio_priv(hw->iio_devs[i]); @@ -203,14 +206,10 @@ int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark) : cur_sensor->watermark; fifo_watermark = min_t(u16, fifo_watermark, cur_watermark); - sip += cur_sensor->sip; } - if (!sip) - return 0; - - fifo_watermark = max_t(u16, fifo_watermark, sip); - fifo_watermark = (fifo_watermark / sip) * sip; + fifo_watermark = max_t(u16, fifo_watermark, hw->sip); + fifo_watermark = (fifo_watermark / hw->sip) * hw->sip; fifo_watermark = fifo_watermark * hw->settings->fifo_ops.th_wl; err = regmap_read(hw->regmap, hw->settings->fifo_ops.fifo_th.addr + 1, From 9db39f4d4f94b61e4b64b077f6ddb2bdfb533a88 Mon Sep 17 00:00:00 2001 From: Tushar Dave Date: Fri, 31 Aug 2018 23:45:16 +0200 Subject: [PATCH 0488/1762] bpf: Fix bpf_msg_pull_data() Helper bpf_msg_pull_data() mistakenly reuses variable 'offset' while linearizing multiple scatterlist elements. Variable 'offset' is used to find first starting scatterlist element i.e. msg->data = sg_virt(&sg[first_sg]) + start - offset" Use different variable name while linearizing multiple scatterlist elements so that value contained in variable 'offset' won't get overwritten. Fixes: 015632bb30da ("bpf: sk_msg program helper bpf_sk_msg_pull_data") Signed-off-by: Tushar Dave Signed-off-by: Daniel Borkmann --- net/core/filter.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/net/core/filter.c b/net/core/filter.c index 2c7801f6737a..aecdeba052d3 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -2292,7 +2292,7 @@ static const struct bpf_func_proto bpf_msg_cork_bytes_proto = { BPF_CALL_4(bpf_msg_pull_data, struct sk_msg_buff *, msg, u32, start, u32, end, u64, flags) { - unsigned int len = 0, offset = 0, copy = 0; + unsigned int len = 0, offset = 0, copy = 0, poffset = 0; int bytes = end - start, bytes_sg_total; struct scatterlist *sg = msg->sg_data; int first_sg, last_sg, i, shift; @@ -2348,16 +2348,15 @@ BPF_CALL_4(bpf_msg_pull_data, if (unlikely(!page)) return -ENOMEM; p = page_address(page); - offset = 0; i = first_sg; do { from = sg_virt(&sg[i]); len = sg[i].length; - to = p + offset; + to = p + poffset; memcpy(to, from, len); - offset += len; + poffset += len; sg[i].length = 0; put_page(sg_page(&sg[i])); From 97911e0ccb54c7478b9dac77e6c54c01b449e3a7 Mon Sep 17 00:00:00 2001 From: Prashant Bhole Date: Fri, 31 Aug 2018 15:32:42 +0900 Subject: [PATCH 0489/1762] tools/bpf: bpftool, add xskmap in map types When listed all maps, bpftool currently shows (null) for xskmap. Added xskmap type in map_type_name[] to show correct type. Signed-off-by: Prashant Bhole Acked-by: Jakub Kicinski Signed-off-by: Daniel Borkmann --- tools/bpf/bpftool/map.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c index b2ec20e562bd..b455930a3eaf 100644 --- a/tools/bpf/bpftool/map.c +++ b/tools/bpf/bpftool/map.c @@ -68,6 +68,7 @@ static const char * const map_type_name[] = { [BPF_MAP_TYPE_DEVMAP] = "devmap", [BPF_MAP_TYPE_SOCKMAP] = "sockmap", [BPF_MAP_TYPE_CPUMAP] = "cpumap", + [BPF_MAP_TYPE_XSKMAP] = "xskmap", [BPF_MAP_TYPE_SOCKHASH] = "sockhash", [BPF_MAP_TYPE_CGROUP_STORAGE] = "cgroup_storage", }; From 597222f72a94118f593e4f32bf58ae7e049a0df1 Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Thu, 30 Aug 2018 21:25:02 -0700 Subject: [PATCH 0490/1762] bpf: avoid misuse of psock when TCP_ULP_BPF collides with another ULP Currently we check sk_user_data is non NULL to determine if the sk exists in a map. However, this is not sufficient to ensure the psock or the ULP ops are not in use by another user, such as kcm or TLS. To avoid this when adding a sock to a map also verify it is of the correct ULP type. Additionally, when releasing a psock verify that it is the TCP_ULP_BPF type before releasing the ULP. The error case where we abort an update due to ULP collision can cause this error path. For example, __sock_map_ctx_update_elem() [...] err = tcp_set_ulp_id(sock, TCP_ULP_BPF) <- collides with TLS if (err) <- so err out here goto out_free [...] out_free: smap_release_sock() <- calling tcp_cleanup_ulp releases the TLS ULP incorrectly. Fixes: 2f857d04601a ("bpf: sockmap, remove STRPARSER map_flags and add multi-map support") Signed-off-by: John Fastabend Signed-off-by: Daniel Borkmann --- kernel/bpf/sockmap.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c index ce63e5801746..488ef9663c01 100644 --- a/kernel/bpf/sockmap.c +++ b/kernel/bpf/sockmap.c @@ -1462,10 +1462,16 @@ static void smap_destroy_psock(struct rcu_head *rcu) schedule_work(&psock->gc_work); } +static bool psock_is_smap_sk(struct sock *sk) +{ + return inet_csk(sk)->icsk_ulp_ops == &bpf_tcp_ulp_ops; +} + static void smap_release_sock(struct smap_psock *psock, struct sock *sock) { if (refcount_dec_and_test(&psock->refcnt)) { - tcp_cleanup_ulp(sock); + if (psock_is_smap_sk(sock)) + tcp_cleanup_ulp(sock); write_lock_bh(&sock->sk_callback_lock); smap_stop_sock(psock, sock); write_unlock_bh(&sock->sk_callback_lock); @@ -1892,6 +1898,10 @@ static int __sock_map_ctx_update_elem(struct bpf_map *map, * doesn't update user data. */ if (psock) { + if (!psock_is_smap_sk(sock)) { + err = -EBUSY; + goto out_progs; + } if (READ_ONCE(psock->bpf_parse) && parse) { err = -EBUSY; goto out_progs; From 4fb7253e4f9a8f06a986a3b317e2f79d9b43d552 Mon Sep 17 00:00:00 2001 From: Hangbin Liu Date: Wed, 29 Aug 2018 18:06:08 +0800 Subject: [PATCH 0491/1762] igmp: fix incorrect unsolicit report count when join group We should not start timer if im->unsolicit_count equal to 0 after decrease. Or we will send one more unsolicit report message. i.e. 3 instead of 2 by default. Fixes: 1da177e4c3f41 ("Linux-2.6.12-rc2") Signed-off-by: Hangbin Liu Signed-off-by: David S. Miller --- net/ipv4/igmp.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index cf75f8944b05..deb1f8274d71 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -820,10 +820,9 @@ static void igmp_timer_expire(struct timer_list *t) spin_lock(&im->lock); im->tm_running = 0; - if (im->unsolicit_count) { - im->unsolicit_count--; + if (im->unsolicit_count && --im->unsolicit_count) igmp_start_timer(im, unsolicited_report_interval(in_dev)); - } + im->reporter = 1; spin_unlock(&im->lock); From ff06525fcb8ae3c302ac1319bf6c07c026dea964 Mon Sep 17 00:00:00 2001 From: Hangbin Liu Date: Wed, 29 Aug 2018 18:06:10 +0800 Subject: [PATCH 0492/1762] igmp: fix incorrect unsolicit report count after link down and up After link down and up, i.e. when call ip_mc_up(), we doesn't init im->unsolicit_count. So after igmp_timer_expire(), we will not start timer again and only send one unsolicit report at last. Fix it by initializing im->unsolicit_count in igmp_group_added(), so we can respect igmp robustness value. Fixes: 24803f38a5c0b ("igmp: do not remove igmp souce list info when set link down") Signed-off-by: Hangbin Liu Signed-off-by: David S. Miller --- net/ipv4/igmp.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index deb1f8274d71..4da39446da2d 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -1307,6 +1307,8 @@ static void igmp_group_added(struct ip_mc_list *im) if (in_dev->dead) return; + + im->unsolicit_count = net->ipv4.sysctl_igmp_qrv; if (IGMP_V1_SEEN(in_dev) || IGMP_V2_SEEN(in_dev)) { spin_lock_bh(&im->lock); igmp_start_timer(im, IGMP_INITIAL_REPORT_DELAY); @@ -1390,9 +1392,6 @@ static void __ip_mc_inc_group(struct in_device *in_dev, __be32 addr, unsigned int mode) { struct ip_mc_list *im; -#ifdef CONFIG_IP_MULTICAST - struct net *net = dev_net(in_dev->dev); -#endif ASSERT_RTNL(); @@ -1419,7 +1418,6 @@ static void __ip_mc_inc_group(struct in_device *in_dev, __be32 addr, spin_lock_init(&im->lock); #ifdef CONFIG_IP_MULTICAST timer_setup(&im->timer, igmp_timer_expire, 0); - im->unsolicit_count = net->ipv4.sysctl_igmp_qrv; #endif im->next_rcu = in_dev->mc_list; From 10d7fac4c52618d94a42d701d28f114147291ecc Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 29 Aug 2018 08:00:23 -0700 Subject: [PATCH 0493/1762] dt-bindings: net: cpsw: Document cpsw-phy-sel usage but prefer phandle The current cpsw usage for cpsw-phy-sel is undocumented but is used for all the boards using cpsw. And cpsw-phy-sel is not really a child of the cpsw device, it lives in the system control module instead. Let's document the existing usage, and improve it a bit where we prefer to use a phandle instead of a child device for it. That way we can properly describe the hardware in dts files for things like genpd. Cc: devicetree@vger.kernel.org Cc: Andrew Lunn Cc: Grygorii Strashko Cc: Ivan Khoronzhuk Cc: Mark Rutland Cc: Murali Karicheri Cc: Rob Herring Signed-off-by: Tony Lindgren Signed-off-by: David S. Miller --- Documentation/devicetree/bindings/net/cpsw.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt index 41089369f891..b3acebe08eb0 100644 --- a/Documentation/devicetree/bindings/net/cpsw.txt +++ b/Documentation/devicetree/bindings/net/cpsw.txt @@ -19,6 +19,10 @@ Required properties: - slaves : Specifies number for slaves - active_slave : Specifies the slave to use for time stamping, ethtool and SIOCGMIIPHY +- cpsw-phy-sel : Specifies the phandle to the CPSW phy mode selection + device. See also cpsw-phy-sel.txt for it's binding. + Note that in legacy cases cpsw-phy-sel may be + a child device instead of a phandle. Optional properties: - ti,hwmods : Must be "cpgmac0" @@ -75,6 +79,7 @@ Examples: cpts_clock_mult = <0x80000000>; cpts_clock_shift = <29>; syscon = <&cm>; + cpsw-phy-sel = <&phy_sel>; cpsw_emac0: slave@0 { phy_id = <&davinci_mdio>, <0>; phy-mode = "rgmii-txid"; @@ -103,6 +108,7 @@ Examples: cpts_clock_mult = <0x80000000>; cpts_clock_shift = <29>; syscon = <&cm>; + cpsw-phy-sel = <&phy_sel>; cpsw_emac0: slave@0 { phy_id = <&davinci_mdio>, <0>; phy-mode = "rgmii-txid"; From 18eb8aea7fb2fb4490e578b1b8a1096c34b2fc48 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 29 Aug 2018 08:00:24 -0700 Subject: [PATCH 0494/1762] net: ethernet: cpsw-phy-sel: prefer phandle for phy sel The cpsw-phy-sel device is not a child of the cpsw interconnect target module. It lives in the system control module. Let's fix this issue by trying to use cpsw-phy-sel phandle first if it exists and if not fall back to current usage of trying to find the cpsw-phy-sel child. That way the phy sel driver can be a child of the system control module where it belongs in the device tree. Without this fix, we cannot have a proper interconnect target module hierarchy in device tree for things like genpd. Note that deferred probe is mostly not supported by cpsw and this patch does not attempt to fix that. In case deferred probe support is needed, this could be added to cpsw_slave_open() and phy_connect() so they start handling and returning errors. For documenting it, looks like the cpsw-phy-sel is used for all cpsw device tree nodes. It's missing the related binding documentation, so let's also update the binding documentation accordingly. Cc: devicetree@vger.kernel.org Cc: Andrew Lunn Cc: Grygorii Strashko Cc: Ivan Khoronzhuk Cc: Mark Rutland Cc: Murali Karicheri Cc: Rob Herring Signed-off-by: Tony Lindgren Signed-off-by: David S. Miller --- drivers/net/ethernet/ti/cpsw-phy-sel.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/ti/cpsw-phy-sel.c b/drivers/net/ethernet/ti/cpsw-phy-sel.c index 0c1adad7415d..396e1cd10667 100644 --- a/drivers/net/ethernet/ti/cpsw-phy-sel.c +++ b/drivers/net/ethernet/ti/cpsw-phy-sel.c @@ -170,10 +170,13 @@ void cpsw_phy_sel(struct device *dev, phy_interface_t phy_mode, int slave) struct device_node *node; struct cpsw_phy_sel_priv *priv; - node = of_get_child_by_name(dev->of_node, "cpsw-phy-sel"); + node = of_parse_phandle(dev->of_node, "cpsw-phy-sel", 0); if (!node) { - dev_err(dev, "Phy mode driver DT not found\n"); - return; + node = of_get_child_by_name(dev->of_node, "cpsw-phy-sel"); + if (!node) { + dev_err(dev, "Phy mode driver DT not found\n"); + return; + } } dev = bus_find_device(&platform_bus_type, NULL, node, match); From 15a81b418e22a9aa4a0504471fdcb0f4ebf69b96 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Thu, 30 Aug 2018 14:15:43 -0700 Subject: [PATCH 0495/1762] net/ipv6: Only update MTU metric if it set Jan reported a regression after an update to 4.18.5. In this case ipv6 default route is setup by systemd-networkd based on data from an RA. The RA contains an MTU of 1492 which is used when the route is first inserted but then systemd-networkd pushes down updates to the default route without the mtu set. Prior to the change to fib6_info, metrics such as MTU were held in the dst_entry and rt6i_pmtu in rt6_info contained an update to the mtu if any. ip6_mtu would look at rt6i_pmtu first and use it if set. If not, the value from the metrics is used if it is set and finally falling back to the idev value. After the fib6_info change metrics are contained in the fib6_info struct and there is no equivalent to rt6i_pmtu. To maintain consistency with the old behavior the new code should only reset the MTU in the metrics if the route update has it set. Fixes: d4ead6b34b67 ("net/ipv6: move metrics from dst to rt6_info") Reported-by: Jan Janssen Signed-off-by: David Ahern Signed-off-by: David S. Miller --- net/ipv6/ip6_fib.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index c861a6d4671d..5516f55e214b 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -989,7 +989,10 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct fib6_info *rt, fib6_clean_expires(iter); else fib6_set_expires(iter, rt->expires); - fib6_metric_set(iter, RTAX_MTU, rt->fib6_pmtu); + + if (rt->fib6_pmtu) + fib6_metric_set(iter, RTAX_MTU, + rt->fib6_pmtu); return -EEXIST; } /* If we have the same destination and the same metric, From 57361846b52bc686112da6ca5368d11210796804 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 2 Sep 2018 14:37:30 -0700 Subject: [PATCH 0496/1762] Linux 4.19-rc2 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index a34a9283ee90..19948e556941 100644 --- a/Makefile +++ b/Makefile @@ -2,7 +2,7 @@ VERSION = 4 PATCHLEVEL = 19 SUBLEVEL = 0 -EXTRAVERSION = -rc1 +EXTRAVERSION = -rc2 NAME = Merciless Moray # *DOCUMENTATION* From 38f5d8d8cbb2ffa2b54315118185332329ec891c Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 31 Aug 2018 23:30:47 +0900 Subject: [PATCH 0497/1762] i2c: uniphier: issue STOP only for last message or I2C_M_STOP This driver currently emits a STOP if the next message is not I2C_MD_RD. It should not do it because it disturbs the I2C_RDWR ioctl, where read/write transactions are combined without STOP between. Issue STOP only when the message is the last one _or_ flagged with I2C_M_STOP. Fixes: dd6fd4a32793 ("i2c: uniphier: add UniPhier FIFO-less I2C driver") Signed-off-by: Masahiro Yamada Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-uniphier.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-uniphier.c b/drivers/i2c/busses/i2c-uniphier.c index bb181b088291..454f914ae66d 100644 --- a/drivers/i2c/busses/i2c-uniphier.c +++ b/drivers/i2c/busses/i2c-uniphier.c @@ -248,11 +248,8 @@ static int uniphier_i2c_master_xfer(struct i2c_adapter *adap, return ret; for (msg = msgs; msg < emsg; msg++) { - /* If next message is read, skip the stop condition */ - bool stop = !(msg + 1 < emsg && msg[1].flags & I2C_M_RD); - /* but, force it if I2C_M_STOP is set */ - if (msg->flags & I2C_M_STOP) - stop = true; + /* Emit STOP if it is the last message or I2C_M_STOP is set. */ + bool stop = (msg + 1 == emsg) || (msg->flags & I2C_M_STOP); ret = uniphier_i2c_master_xfer_one(adap, msg, stop); if (ret) From 4c85609b08c4761eca0a40fd7beb06bc650f252d Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 31 Aug 2018 23:30:48 +0900 Subject: [PATCH 0498/1762] i2c: uniphier-f: issue STOP only for last message or I2C_M_STOP This driver currently emits a STOP if the next message is not I2C_MD_RD. It should not do it because it disturbs the I2C_RDWR ioctl, where read/write transactions are combined without STOP between. Issue STOP only when the message is the last one _or_ flagged with I2C_M_STOP. Fixes: 6a62974b667f ("i2c: uniphier_f: add UniPhier FIFO-builtin I2C driver") Signed-off-by: Masahiro Yamada Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-uniphier-f.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-uniphier-f.c b/drivers/i2c/busses/i2c-uniphier-f.c index 9918bdd81619..a403e8579b65 100644 --- a/drivers/i2c/busses/i2c-uniphier-f.c +++ b/drivers/i2c/busses/i2c-uniphier-f.c @@ -401,11 +401,8 @@ static int uniphier_fi2c_master_xfer(struct i2c_adapter *adap, return ret; for (msg = msgs; msg < emsg; msg++) { - /* If next message is read, skip the stop condition */ - bool stop = !(msg + 1 < emsg && msg[1].flags & I2C_M_RD); - /* but, force it if I2C_M_STOP is set */ - if (msg->flags & I2C_M_STOP) - stop = true; + /* Emit STOP if it is the last message or I2C_M_STOP is set. */ + bool stop = (msg + 1 == emsg) || (msg->flags & I2C_M_STOP); ret = uniphier_fi2c_master_xfer_one(adap, msg, stop); if (ret) From f6eb89349078b2ca3e42dbb272ab444bab1b9f42 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 31 Aug 2018 10:24:14 -0300 Subject: [PATCH 0499/1762] dt-bindings: imx-lpi2c: Remove mx8dv compatible entry mx8dv never entered into production and there is no other place in the kernel referring to this SoC, so remove it from the dt bindings documentation. Signed-off-by: Fabio Estevam Signed-off-by: Wolfram Sang --- Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt index 00e4365d7206..091c8dfd3229 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt @@ -3,7 +3,6 @@ Required properties: - compatible : - "fsl,imx7ulp-lpi2c" for LPI2C compatible with the one integrated on i.MX7ULP soc - - "fsl,imx8dv-lpi2c" for LPI2C compatible with the one integrated on i.MX8DV soc - reg : address and length of the lpi2c master registers - interrupts : lpi2c interrupt - clocks : lpi2c clock specifier @@ -11,7 +10,7 @@ Required properties: Examples: lpi2c7: lpi2c7@40a50000 { - compatible = "fsl,imx8dv-lpi2c"; + compatible = "fsl,imx7ulp-lpi2c"; reg = <0x40A50000 0x10000>; interrupt-parent = <&intc>; interrupts = ; From 20fdcd760a63ea66335c58bceb175e7712ab18ff Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 31 Aug 2018 10:24:15 -0300 Subject: [PATCH 0500/1762] i2c: imx-lpi2c: Remove mx8dv compatible entry mx8dv never entered into production and there is no other place in the kernel referring to this SoC, so remove it from the driver's compatible entry. Signed-off-by: Fabio Estevam Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-imx-lpi2c.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-imx-lpi2c.c index 6d975f5221ca..06c4c767af32 100644 --- a/drivers/i2c/busses/i2c-imx-lpi2c.c +++ b/drivers/i2c/busses/i2c-imx-lpi2c.c @@ -538,7 +538,6 @@ static const struct i2c_algorithm lpi2c_imx_algo = { static const struct of_device_id lpi2c_imx_of_match[] = { { .compatible = "fsl,imx7ulp-lpi2c" }, - { .compatible = "fsl,imx8dv-lpi2c" }, { }, }; MODULE_DEVICE_TABLE(of, lpi2c_imx_of_match); From 16fe10cf92783ed9ceb182d6ea2b8adf5e8ec1b8 Mon Sep 17 00:00:00 2001 From: Jia-Ju Bai Date: Sat, 1 Sep 2018 20:11:05 +0800 Subject: [PATCH 0501/1762] net: cadence: Fix a sleep-in-atomic-context bug in macb_halt_tx() The kernel module may sleep with holding a spinlock. The function call paths (from bottom to top) in Linux-4.16 are: [FUNC] usleep_range drivers/net/ethernet/cadence/macb_main.c, 648: usleep_range in macb_halt_tx drivers/net/ethernet/cadence/macb_main.c, 730: macb_halt_tx in macb_tx_error_task drivers/net/ethernet/cadence/macb_main.c, 721: _raw_spin_lock_irqsave in macb_tx_error_task To fix this bug, usleep_range() is replaced with udelay(). This bug is found by my static analysis tool DSAC. Signed-off-by: Jia-Ju Bai Signed-off-by: David S. Miller --- drivers/net/ethernet/cadence/macb_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index c6707ea2d751..16e4ef7d7185 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -649,7 +649,7 @@ static int macb_halt_tx(struct macb *bp) if (!(status & MACB_BIT(TGO))) return 0; - usleep_range(10, 250); + udelay(250); } while (time_before(halt_time, timeout)); return -ETIMEDOUT; From 59a03fea131d671a57b8ed3dc446264c61d4b75f Mon Sep 17 00:00:00 2001 From: Vinson Lee Date: Sat, 1 Sep 2018 21:20:27 +0000 Subject: [PATCH 0502/1762] uapi: Fix linux/rds.h userspace compilation errors. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Include linux/in6.h for struct in6_addr. /usr/include/linux/rds.h:156:18: error: field ‘laddr’ has incomplete type struct in6_addr laddr; ^~~~~ /usr/include/linux/rds.h:157:18: error: field ‘faddr’ has incomplete type struct in6_addr faddr; ^~~~~ /usr/include/linux/rds.h:178:18: error: field ‘laddr’ has incomplete type struct in6_addr laddr; ^~~~~ /usr/include/linux/rds.h:179:18: error: field ‘faddr’ has incomplete type struct in6_addr faddr; ^~~~~ /usr/include/linux/rds.h:198:18: error: field ‘bound_addr’ has incomplete type struct in6_addr bound_addr; ^~~~~~~~~~ /usr/include/linux/rds.h:199:18: error: field ‘connected_addr’ has incomplete type struct in6_addr connected_addr; ^~~~~~~~~~~~~~ /usr/include/linux/rds.h:219:18: error: field ‘local_addr’ has incomplete type struct in6_addr local_addr; ^~~~~~~~~~ /usr/include/linux/rds.h:221:18: error: field ‘peer_addr’ has incomplete type struct in6_addr peer_addr; ^~~~~~~~~ /usr/include/linux/rds.h:245:18: error: field ‘src_addr’ has incomplete type struct in6_addr src_addr; ^~~~~~~~ /usr/include/linux/rds.h:246:18: error: field ‘dst_addr’ has incomplete type struct in6_addr dst_addr; ^~~~~~~~ Fixes: b7ff8b1036f0 ("rds: Extend RDS API for IPv6 support") Signed-off-by: Vinson Lee Acked-by: Santosh Shilimkar Signed-off-by: David S. Miller --- include/uapi/linux/rds.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/uapi/linux/rds.h b/include/uapi/linux/rds.h index dc520e1a4123..8b73cb603c5f 100644 --- a/include/uapi/linux/rds.h +++ b/include/uapi/linux/rds.h @@ -37,6 +37,7 @@ #include #include /* For __kernel_sockaddr_storage. */ +#include /* For struct in6_addr. */ #define RDS_IB_ABI_VERSION 0x301 From c90bbce9eedd14f9428388d9442b5b3e98a2a6dd Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Mon, 20 Aug 2018 08:25:37 +0300 Subject: [PATCH 0503/1762] m68k: fix early memory reservation for ColdFire MMU systems The bootmem to memblock conversion introduced by the commit 1008a11590b9 ("m68k: switch to MEMBLOCK + NO_BOOTMEM") made reservation of kernel code and data to start from a wrong address. Fix it. Signed-off-by: Mike Rapoport Tested-by: Angelo Dureghello Signed-off-by: Greg Ungerer --- arch/m68k/mm/mcfmmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/m68k/mm/mcfmmu.c b/arch/m68k/mm/mcfmmu.c index 70dde040779b..f5453d944ff5 100644 --- a/arch/m68k/mm/mcfmmu.c +++ b/arch/m68k/mm/mcfmmu.c @@ -172,7 +172,7 @@ void __init cf_bootmem_alloc(void) high_memory = (void *)_ramend; /* Reserve kernel text/data/bss */ - memblock_reserve(memstart, memstart - _rambase); + memblock_reserve(_rambase, memstart - _rambase); m68k_virt_to_node_shift = fls(_ramend - 1) - 6; module_fixup(NULL, __start_fixup, __stop_fixup); From c15e3f19a6d5c89b1209dc94b40e568177cb0921 Mon Sep 17 00:00:00 2001 From: Jon Kuhn Date: Mon, 9 Jul 2018 14:33:14 +0000 Subject: [PATCH 0504/1762] fs/cifs: don't translate SFM_SLASH (U+F026) to backslash When a Mac client saves an item containing a backslash to a file server the backslash is represented in the CIFS/SMB protocol as as U+F026. Before this change, listing a directory containing an item with a backslash in its name will return that item with the backslash represented with a true backslash character (U+005C) because convert_sfm_character mapped U+F026 to U+005C when interpretting the CIFS/SMB protocol response. However, attempting to open or stat the path using a true backslash will result in an error because convert_to_sfm_char does not map U+005C back to U+F026 causing the CIFS/SMB request to be made with the backslash represented as U+005C. This change simply prevents the U+F026 to U+005C conversion from happenning. This is analogous to how the code does not do any translation of UNI_SLASH (U+F000). Signed-off-by: Jon Kuhn Signed-off-by: Steve French --- fs/cifs/cifs_unicode.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c index b380e0871372..a2b2355e7f01 100644 --- a/fs/cifs/cifs_unicode.c +++ b/fs/cifs/cifs_unicode.c @@ -105,9 +105,6 @@ convert_sfm_char(const __u16 src_char, char *target) case SFM_LESSTHAN: *target = '<'; break; - case SFM_SLASH: - *target = '\\'; - break; case SFM_SPACE: *target = ' '; break; From 5e19697b56a64004e2d0ff1bb952ea05493c088f Mon Sep 17 00:00:00 2001 From: Steve French Date: Mon, 27 Aug 2018 17:04:13 -0500 Subject: [PATCH 0505/1762] SMB3: Backup intent flag missing for directory opens with backupuid mounts When "backup intent" is requested on the mount (e.g. backupuid or backupgid mount options), the corresponding flag needs to be set on opens of directories (and files) but was missing in some places causing access denied trying to enumerate and backup servers. Fixes kernel bugzilla #200953 https://bugzilla.kernel.org/show_bug.cgi?id=200953 Reported-and-tested-by: Signed-off-by: Steve French CC: Stable Reviewed-by: Pavel Shilovsky --- fs/cifs/inode.c | 2 ++ fs/cifs/smb2ops.c | 25 ++++++++++++++++++++----- 2 files changed, 22 insertions(+), 5 deletions(-) diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index d32eaa4b2437..6e8765f44508 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -467,6 +467,8 @@ cifs_sfu_type(struct cifs_fattr *fattr, const char *path, oparms.cifs_sb = cifs_sb; oparms.desired_access = GENERIC_READ; oparms.create_options = CREATE_NOT_DIR; + if (backup_cred(cifs_sb)) + oparms.create_options |= CREATE_OPEN_BACKUP_INTENT; oparms.disposition = FILE_OPEN; oparms.path = path; oparms.fid = &fid; diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 247a98e6c856..b6fada244527 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -630,7 +630,10 @@ smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon, oparms.tcon = tcon; oparms.desired_access = FILE_READ_ATTRIBUTES; oparms.disposition = FILE_OPEN; - oparms.create_options = 0; + if (backup_cred(cifs_sb)) + oparms.create_options = CREATE_OPEN_BACKUP_INTENT; + else + oparms.create_options = 0; oparms.fid = &fid; oparms.reconnect = false; @@ -779,7 +782,10 @@ smb2_query_eas(const unsigned int xid, struct cifs_tcon *tcon, oparms.tcon = tcon; oparms.desired_access = FILE_READ_EA; oparms.disposition = FILE_OPEN; - oparms.create_options = 0; + if (backup_cred(cifs_sb)) + oparms.create_options = CREATE_OPEN_BACKUP_INTENT; + else + oparms.create_options = 0; oparms.fid = &fid; oparms.reconnect = false; @@ -858,7 +864,10 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon, oparms.tcon = tcon; oparms.desired_access = FILE_WRITE_EA; oparms.disposition = FILE_OPEN; - oparms.create_options = 0; + if (backup_cred(cifs_sb)) + oparms.create_options = CREATE_OPEN_BACKUP_INTENT; + else + oparms.create_options = 0; oparms.fid = &fid; oparms.reconnect = false; @@ -1453,7 +1462,10 @@ smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon, oparms.tcon = tcon; oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA; oparms.disposition = FILE_OPEN; - oparms.create_options = 0; + if (backup_cred(cifs_sb)) + oparms.create_options = CREATE_OPEN_BACKUP_INTENT; + else + oparms.create_options = 0; oparms.fid = fid; oparms.reconnect = false; @@ -1857,7 +1869,10 @@ smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon, oparms.tcon = tcon; oparms.desired_access = FILE_READ_ATTRIBUTES; oparms.disposition = FILE_OPEN; - oparms.create_options = 0; + if (backup_cred(cifs_sb)) + oparms.create_options = CREATE_OPEN_BACKUP_INTENT; + else + oparms.create_options = 0; oparms.fid = &fid; oparms.reconnect = false; From 25f2573512d7b38bca4c0878109db9600b8b711f Mon Sep 17 00:00:00 2001 From: Steve French Date: Wed, 29 Aug 2018 09:22:22 -0500 Subject: [PATCH 0506/1762] smb3: minor debugging clarifications in rfc1001 len processing I ran into some cases where server was returning the wrong length on frames but I couldn't easily match them to the command in the network trace (or server logs) since I need the command and/or multiplex id to find the offending SMB2/SMB3 command. Add these two fields to the log message. In the case of padding too much it may not be a problem in all cases but might have correlated to a network disconnect case in some problems we have been looking at. In the case of frame too short is even more important. Signed-off-by: Steve French Reviewed-by: Ronnie Sahlberg --- fs/cifs/smb2misc.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c index db0453660ff6..6a9c47541c53 100644 --- a/fs/cifs/smb2misc.c +++ b/fs/cifs/smb2misc.c @@ -248,16 +248,20 @@ smb2_check_message(char *buf, unsigned int len, struct TCP_Server_Info *srvr) * MacOS server pads after SMB2.1 write response with 3 bytes * of junk. Other servers match RFC1001 len to actual * SMB2/SMB3 frame length (header + smb2 response specific data) - * Some windows servers do too when compounding is used. - * Log the server error (once), but allow it and continue + * Some windows servers also pad up to 8 bytes when compounding. + * If pad is longer than eight bytes, log the server behavior + * (once), since may indicate a problem but allow it and continue * since the frame is parseable. */ if (clc_len < len) { - printk_once(KERN_WARNING - "SMB2 server sent bad RFC1001 len %d not %d\n", - len, clc_len); + pr_warn_once( + "srv rsp padded more than expected. Length %d not %d for cmd:%d mid:%llu\n", + len, clc_len, command, mid); return 0; } + pr_warn_once( + "srv rsp too short, len %d not %d. cmd:%d mid:%llu\n", + len, clc_len, command, mid); return 1; } From f801568332321e2b1e7a8bd26c3e4913a312a2ec Mon Sep 17 00:00:00 2001 From: Steve French Date: Fri, 31 Aug 2018 15:12:10 -0500 Subject: [PATCH 0507/1762] smb3: check for and properly advertise directory lease support Although servers will typically ignore unsupported features, we should advertise the support for directory leases (as Windows e.g. does) in the negotiate protocol capabilities we pass to the server, and should check for the server capability (CAP_DIRECTORY_LEASING) before sending a lease request for an open of a directory. This will prevent us from accidentally sending directory leases to SMB2.1 or SMB2 server for example. Signed-off-by: Steve French CC: Stable Reviewed-by: Ronnie Sahlberg --- fs/cifs/smb2ops.c | 10 +++++----- fs/cifs/smb2pdu.c | 3 +++ 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index b6fada244527..d954ce36b473 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -3654,7 +3654,7 @@ struct smb_version_values smb21_values = { struct smb_version_values smb3any_values = { .version_string = SMB3ANY_VERSION_STRING, .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */ - .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION, + .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, .large_lock_type = 0, .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, @@ -3675,7 +3675,7 @@ struct smb_version_values smb3any_values = { struct smb_version_values smbdefault_values = { .version_string = SMBDEFAULT_VERSION_STRING, .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */ - .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION, + .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, .large_lock_type = 0, .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, @@ -3696,7 +3696,7 @@ struct smb_version_values smbdefault_values = { struct smb_version_values smb30_values = { .version_string = SMB30_VERSION_STRING, .protocol_id = SMB30_PROT_ID, - .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION, + .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, .large_lock_type = 0, .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, @@ -3717,7 +3717,7 @@ struct smb_version_values smb30_values = { struct smb_version_values smb302_values = { .version_string = SMB302_VERSION_STRING, .protocol_id = SMB302_PROT_ID, - .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION, + .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, .large_lock_type = 0, .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, @@ -3738,7 +3738,7 @@ struct smb_version_values smb302_values = { struct smb_version_values smb311_values = { .version_string = SMB311_VERSION_STRING, .protocol_id = SMB311_PROT_ID, - .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION, + .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, .large_lock_type = 0, .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 5740aa809be6..c08acfc77abc 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -2178,6 +2178,9 @@ SMB2_open_init(struct cifs_tcon *tcon, struct smb_rqst *rqst, __u8 *oplock, if (!(server->capabilities & SMB2_GLOBAL_CAP_LEASING) || *oplock == SMB2_OPLOCK_LEVEL_NONE) req->RequestedOplockLevel = *oplock; + else if (!(server->capabilities & SMB2_GLOBAL_CAP_DIRECTORY_LEASING) && + (oparms->create_options & CREATE_NOT_FILE)) + req->RequestedOplockLevel = *oplock; /* no srv lease support */ else { rc = add_lease_context(server, iov, &n_iov, oparms->fid->lease_key, oplock); From 395a2076b4064f97d3fce03af15210ff2a7bb7f9 Mon Sep 17 00:00:00 2001 From: Thomas Werschlein Date: Thu, 30 Aug 2018 18:29:20 +0200 Subject: [PATCH 0508/1762] cifs: connect to servername instead of IP for IPC$ share MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch is required allows access to a Microsoft fileserver failover cluster behind a 1:1 NAT firewall. The change also provides stronger context for authentication and share connection (see MS-SMB2 3.3.5.7 and MS-SRVS 3.1.6.8) as noted by Tom Talpey, and addresses comments about the buffer size for the UNC made by Aurélien Aptel. Signed-off-by: Thomas Werschlein Signed-off-by: Steve French CC: Tom Talpey Reviewed-by: Aurelien Aptel CC: Stable --- fs/cifs/connect.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index c832a8a1970a..7aa08dba4719 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -2547,7 +2547,7 @@ cifs_setup_ipc(struct cifs_ses *ses, struct smb_vol *volume_info) if (tcon == NULL) return -ENOMEM; - snprintf(unc, sizeof(unc), "\\\\%s\\IPC$", ses->serverName); + snprintf(unc, sizeof(unc), "\\\\%s\\IPC$", ses->server->hostname); /* cannot fail */ nls_codepage = load_nls_default(); From 215ab0f021c9fea3c18b75e7d522400ee6a49990 Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Fri, 31 Aug 2018 08:38:49 -0300 Subject: [PATCH 0509/1762] xfrm6: call kfree_skb when skb is toobig After commit d6990976af7c5d8f55903bfb4289b6fb030bf754 ("vti6: fix PMTU caching and reporting on xmit"), some too big skbs might be potentially passed down to __xfrm6_output, causing it to fail to transmit but not free the skb, causing a leak of skb, and consequentially a leak of dst references. After running pmtu.sh, that shows as failure to unregister devices in a namespace: [ 311.397671] unregister_netdevice: waiting for veth_b to become free. Usage count = 1 The fix is to call kfree_skb in case of transmit failures. Fixes: dd767856a36e ("xfrm6: Don't call icmpv6_send on local error") Signed-off-by: Thadeu Lima de Souza Cascardo Reviewed-by: Sabrina Dubroca Signed-off-by: Steffen Klassert --- net/ipv6/xfrm6_output.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c index 5959ce9620eb..6a74080005cf 100644 --- a/net/ipv6/xfrm6_output.c +++ b/net/ipv6/xfrm6_output.c @@ -170,9 +170,11 @@ static int __xfrm6_output(struct net *net, struct sock *sk, struct sk_buff *skb) if (toobig && xfrm6_local_dontfrag(skb)) { xfrm6_local_rxpmtu(skb, mtu); + kfree_skb(skb); return -EMSGSIZE; } else if (!skb->ignore_df && toobig && skb->sk) { xfrm_local_error(skb, mtu); + kfree_skb(skb); return -EMSGSIZE; } From 54ff01fd0d44b9681615f77c15fe9ea6dfadb501 Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Thu, 30 Aug 2018 11:33:43 +0800 Subject: [PATCH 0510/1762] drm/i915/gvt: Give new born vGPU higher scheduling chance This trys to give new born vGPU with higher scheduling chance not only with adding to sched list head and also have higher priority for workload sched for 2 seconds after starting to schedule it. In order for fast GPU execution during VM boot, and ensure guest driver setup with required state given in time. This fixes recent failure seen on one VM with multiple linux VMs running on kernel with commit 2621cefaa42b3("drm/i915: Provide a timeout to i915_gem_wait_for_idle() on setup"), which had shorter setup timeout that caused context state init failed. v2: change to 2s for higher scheduling period Cc: Yuan Hang Reviewed-by: Hang Yuan Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/sched_policy.c | 34 ++++++++++++++++++++----- 1 file changed, 27 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.c b/drivers/gpu/drm/i915/gvt/sched_policy.c index 985fe81794dd..c32e7d5e8629 100644 --- a/drivers/gpu/drm/i915/gvt/sched_policy.c +++ b/drivers/gpu/drm/i915/gvt/sched_policy.c @@ -47,11 +47,15 @@ static bool vgpu_has_pending_workload(struct intel_vgpu *vgpu) return false; } +/* We give 2 seconds higher prio for vGPU during start */ +#define GVT_SCHED_VGPU_PRI_TIME 2 + struct vgpu_sched_data { struct list_head lru_list; struct intel_vgpu *vgpu; bool active; - + bool pri_sched; + ktime_t pri_time; ktime_t sched_in_time; ktime_t sched_time; ktime_t left_ts; @@ -183,6 +187,14 @@ static struct intel_vgpu *find_busy_vgpu(struct gvt_sched_data *sched_data) if (!vgpu_has_pending_workload(vgpu_data->vgpu)) continue; + if (vgpu_data->pri_sched) { + if (ktime_before(ktime_get(), vgpu_data->pri_time)) { + vgpu = vgpu_data->vgpu; + break; + } else + vgpu_data->pri_sched = false; + } + /* Return the vGPU only if it has time slice left */ if (vgpu_data->left_ts > 0) { vgpu = vgpu_data->vgpu; @@ -202,6 +214,7 @@ static void tbs_sched_func(struct gvt_sched_data *sched_data) struct intel_gvt_workload_scheduler *scheduler = &gvt->scheduler; struct vgpu_sched_data *vgpu_data; struct intel_vgpu *vgpu = NULL; + /* no active vgpu or has already had a target */ if (list_empty(&sched_data->lru_runq_head) || scheduler->next_vgpu) goto out; @@ -209,12 +222,13 @@ static void tbs_sched_func(struct gvt_sched_data *sched_data) vgpu = find_busy_vgpu(sched_data); if (vgpu) { scheduler->next_vgpu = vgpu; - - /* Move the last used vGPU to the tail of lru_list */ vgpu_data = vgpu->sched_data; - list_del_init(&vgpu_data->lru_list); - list_add_tail(&vgpu_data->lru_list, - &sched_data->lru_runq_head); + if (!vgpu_data->pri_sched) { + /* Move the last used vGPU to the tail of lru_list */ + list_del_init(&vgpu_data->lru_list); + list_add_tail(&vgpu_data->lru_list, + &sched_data->lru_runq_head); + } } else { scheduler->next_vgpu = gvt->idle_vgpu; } @@ -328,11 +342,17 @@ static void tbs_sched_start_schedule(struct intel_vgpu *vgpu) { struct gvt_sched_data *sched_data = vgpu->gvt->scheduler.sched_data; struct vgpu_sched_data *vgpu_data = vgpu->sched_data; + ktime_t now; if (!list_empty(&vgpu_data->lru_list)) return; - list_add_tail(&vgpu_data->lru_list, &sched_data->lru_runq_head); + now = ktime_get(); + vgpu_data->pri_time = ktime_add(now, + ktime_set(GVT_SCHED_VGPU_PRI_TIME, 0)); + vgpu_data->pri_sched = true; + + list_add(&vgpu_data->lru_list, &sched_data->lru_runq_head); if (!hrtimer_active(&sched_data->timer)) hrtimer_start(&sched_data->timer, ktime_add_ns(ktime_get(), From b833a3660394876541d2513ce2736debc7c6797a Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Tue, 28 Aug 2018 10:58:41 +0300 Subject: [PATCH 0511/1762] ovl: add ovl_fadvise() Implement stacked fadvise to fix syscalls readahead(2) and fadvise64(2) on an overlayfs file. Suggested-by: Miklos Szeredi Fixes: d1d04ef8572b ("ovl: stack file ops") Signed-off-by: Amir Goldstein Signed-off-by: Miklos Szeredi --- fs/overlayfs/file.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c index a4acd84591d4..aeaefd2a551b 100644 --- a/fs/overlayfs/file.c +++ b/fs/overlayfs/file.c @@ -331,6 +331,25 @@ static long ovl_fallocate(struct file *file, int mode, loff_t offset, loff_t len return ret; } +static int ovl_fadvise(struct file *file, loff_t offset, loff_t len, int advice) +{ + struct fd real; + const struct cred *old_cred; + int ret; + + ret = ovl_real_fdget(file, &real); + if (ret) + return ret; + + old_cred = ovl_override_creds(file_inode(file)->i_sb); + ret = vfs_fadvise(real.file, offset, len, advice); + revert_creds(old_cred); + + fdput(real); + + return ret; +} + static long ovl_real_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { @@ -499,6 +518,7 @@ const struct file_operations ovl_file_operations = { .fsync = ovl_fsync, .mmap = ovl_mmap, .fallocate = ovl_fallocate, + .fadvise = ovl_fadvise, .unlocked_ioctl = ovl_ioctl, .compat_ioctl = ovl_compat_ioctl, From 66eb02d839e8495ae6b612e2d09ff599374b80e2 Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Fri, 31 Aug 2018 01:04:13 +0200 Subject: [PATCH 0512/1762] mac80211: fix an off-by-one issue in A-MSDU max_subframe computation Initialize 'n' to 2 in order to take into account also the first packet in the estimation of max_subframe limit for a given A-MSDU since frag_tail pointer is NULL when ieee80211_amsdu_aggregate routine analyzes the second frame. Fixes: 6e0456b54545 ("mac80211: add A-MSDU tx support") Signed-off-by: Lorenzo Bianconi Signed-off-by: Johannes Berg --- net/mac80211/tx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 6ca0865de945..9b3b069e418a 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -3174,7 +3174,7 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata, void *data; bool ret = false; unsigned int orig_len; - int n = 1, nfrags, pad = 0; + int n = 2, nfrags, pad = 0; u16 hdrlen; if (!ieee80211_hw_check(&local->hw, TX_AMSDU)) From 8442938c3a2177ba16043b3a935f2c78266ad399 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 31 Aug 2018 11:10:55 +0300 Subject: [PATCH 0513/1762] cfg80211: fix a type issue in ieee80211_chandef_to_operating_class() The "chandef->center_freq1" variable is a u32 but "freq" is a u16 so we are truncating away the high bits. I noticed this bug because in commit 9cf0a0b4b64a ("cfg80211: Add support for 60GHz band channels 5 and 6") we made "freq <= 56160 + 2160 * 6" a valid requency when before it was only "freq <= 56160 + 2160 * 4" that was valid. It introduces a static checker warning: net/wireless/util.c:1571 ieee80211_chandef_to_operating_class() warn: always true condition '(freq <= 56160 + 2160 * 6) => (0-u16max <= 69120)' But really we probably shouldn't have been truncating the high bits away to begin with. Signed-off-by: Dan Carpenter Signed-off-by: Johannes Berg --- net/wireless/util.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/wireless/util.c b/net/wireless/util.c index 3c654cd7ba56..908bf5b6d89e 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -1374,7 +1374,7 @@ bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def *chandef, u8 *op_class) { u8 vht_opclass; - u16 freq = chandef->center_freq1; + u32 freq = chandef->center_freq1; if (freq >= 2412 && freq <= 2472) { if (chandef->width > NL80211_CHAN_WIDTH_40) From abd76d255d69d70206c01b9cb19ba36a9c1df6a1 Mon Sep 17 00:00:00 2001 From: "Dreyfuss, Haim" Date: Fri, 31 Aug 2018 11:31:04 +0300 Subject: [PATCH 0514/1762] mac80211: fix WMM TXOP calculation In commit 9236c4523e5b ("mac80211: limit wmm params to comply with ETSI requirements"), we have limited the WMM parameters to comply with 802.11 and ETSI standard. Mistakenly the TXOP value was caluclated wrong. Fix it by taking the minimum between 802.11 to ETSI to make sure we are not violating both. Fixes: e552af058148 ("mac80211: limit wmm params to comply with ETSI requirements") Signed-off-by: Haim Dreyfuss Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- net/mac80211/util.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/mac80211/util.c b/net/mac80211/util.c index c80187d6e6bb..93b5bb849ad7 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1151,8 +1151,7 @@ void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min); qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max); qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn); - qparam->txop = !qparam->txop ? wmm_ac->cot / 32 : - min_t(u16, qparam->txop, wmm_ac->cot / 32); + qparam->txop = min_t(u16, qparam->txop, wmm_ac->cot / 32); rcu_read_unlock(); } From f3ffb6c3a28963657eb8b02a795d75f2ebbd5ef4 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Fri, 31 Aug 2018 11:31:06 +0300 Subject: [PATCH 0515/1762] mac80211: fix a race between restart and CSA flows We hit a problem with iwlwifi that was caused by a bug in mac80211. A bug in iwlwifi caused the firwmare to crash in certain cases in channel switch. Because of that bug, drv_pre_channel_switch would fail and trigger the restart flow. Now we had the hw restart worker which runs on the system's workqueue and the csa_connection_drop_work worker that runs on mac80211's workqueue that can run together. This is obviously problematic since the restart work wants to reconfigure the connection, while the csa_connection_drop_work worker does the exact opposite: it tries to disconnect. Fix this by cancelling the csa_connection_drop_work worker in the restart worker. Note that this can sound racy: we could have: driver iface_work CSA_work restart_work +++++++++++++++++++++++++++++++++++++++++++++ | <--drv_cs ---| -CS FAILED--> | | | cancel_work(CSA) schedule | CSA work | | | Race between those 2 But this is not possible because we flush the workqueue in the restart worker before we cancel the CSA worker. That would be bullet proof if we could guarantee that we schedule the CSA worker only from the iface_work which runs on the workqueue (and not on the system's workqueue), but unfortunately we do have an instance in which we schedule the CSA work outside the context of the workqueue (ieee80211_chswitch_done). Note also that we should probably cancel other workers like beacon_connection_loss_work and possibly others for different types of interfaces, at the very least, IBSS should suffer from the exact same problem, but for now, do the minimum to fix the actual bug that was actually experienced and reproduced. Signed-off-by: Emmanuel Grumbach Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- net/mac80211/main.c | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 27cd64acaf00..66cbddd65b47 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -255,8 +255,27 @@ static void ieee80211_restart_work(struct work_struct *work) flush_work(&local->radar_detected_work); rtnl_lock(); - list_for_each_entry(sdata, &local->interfaces, list) + list_for_each_entry(sdata, &local->interfaces, list) { + /* + * XXX: there may be more work for other vif types and even + * for station mode: a good thing would be to run most of + * the iface type's dependent _stop (ieee80211_mg_stop, + * ieee80211_ibss_stop) etc... + * For now, fix only the specific bug that was seen: race + * between csa_connection_drop_work and us. + */ + if (sdata->vif.type == NL80211_IFTYPE_STATION) { + /* + * This worker is scheduled from the iface worker that + * runs on mac80211's workqueue, so we can't be + * scheduling this worker after the cancel right here. + * The exception is ieee80211_chswitch_done. + * Then we can have a race... + */ + cancel_work_sync(&sdata->u.mgd.csa_connection_drop_work); + } flush_delayed_work(&sdata->dec_tailroom_needed_wk); + } ieee80211_scan_cancel(local); /* make sure any new ROC will consider local->in_reconfig */ From 0007e94355fdb71a1cf5dba0754155cba08f0666 Mon Sep 17 00:00:00 2001 From: Ilan Peer Date: Fri, 31 Aug 2018 11:31:10 +0300 Subject: [PATCH 0516/1762] mac80211: Fix station bandwidth setting after channel switch When performing a channel switch flow for a managed interface, the flow did not update the bandwidth of the AP station and the rate scale algorithm. In case of a channel width downgrade, this would result with the rate scale algorithm using a bandwidth that does not match the interface channel configuration. Fix this by updating the AP station bandwidth and rate scaling algorithm before the actual channel change in case of a bandwidth downgrade, or after the actual channel change in case of a bandwidth upgrade. Signed-off-by: Ilan Peer Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- net/mac80211/mlme.c | 53 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index a59187c016e0..22b699460176 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -978,6 +978,10 @@ static void ieee80211_chswitch_work(struct work_struct *work) */ if (sdata->reserved_chanctx) { + struct ieee80211_supported_band *sband = NULL; + struct sta_info *mgd_sta = NULL; + enum ieee80211_sta_rx_bandwidth bw = IEEE80211_STA_RX_BW_20; + /* * with multi-vif csa driver may call ieee80211_csa_finish() * many times while waiting for other interfaces to use their @@ -986,6 +990,48 @@ static void ieee80211_chswitch_work(struct work_struct *work) if (sdata->reserved_ready) goto out; + if (sdata->vif.bss_conf.chandef.width != + sdata->csa_chandef.width) { + /* + * For managed interface, we need to also update the AP + * station bandwidth and align the rate scale algorithm + * on the bandwidth change. Here we only consider the + * bandwidth of the new channel definition (as channel + * switch flow does not have the full HT/VHT/HE + * information), assuming that if additional changes are + * required they would be done as part of the processing + * of the next beacon from the AP. + */ + switch (sdata->csa_chandef.width) { + case NL80211_CHAN_WIDTH_20_NOHT: + case NL80211_CHAN_WIDTH_20: + default: + bw = IEEE80211_STA_RX_BW_20; + break; + case NL80211_CHAN_WIDTH_40: + bw = IEEE80211_STA_RX_BW_40; + break; + case NL80211_CHAN_WIDTH_80: + bw = IEEE80211_STA_RX_BW_80; + break; + case NL80211_CHAN_WIDTH_80P80: + case NL80211_CHAN_WIDTH_160: + bw = IEEE80211_STA_RX_BW_160; + break; + } + + mgd_sta = sta_info_get(sdata, ifmgd->bssid); + sband = + local->hw.wiphy->bands[sdata->csa_chandef.chan->band]; + } + + if (sdata->vif.bss_conf.chandef.width > + sdata->csa_chandef.width) { + mgd_sta->sta.bandwidth = bw; + rate_control_rate_update(local, sband, mgd_sta, + IEEE80211_RC_BW_CHANGED); + } + ret = ieee80211_vif_use_reserved_context(sdata); if (ret) { sdata_info(sdata, @@ -996,6 +1042,13 @@ static void ieee80211_chswitch_work(struct work_struct *work) goto out; } + if (sdata->vif.bss_conf.chandef.width < + sdata->csa_chandef.width) { + mgd_sta->sta.bandwidth = bw; + rate_control_rate_update(local, sband, mgd_sta, + IEEE80211_RC_BW_CHANGED); + } + goto out; } From 6c18b27d6e5c6a7206364eae2b47bc8d8b2fa68f Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Fri, 31 Aug 2018 11:31:12 +0300 Subject: [PATCH 0517/1762] mac80211: don't Tx a deauth frame if the AP forbade Tx If the driver fails to properly prepare for the channel switch, mac80211 will disconnect. If the CSA IE had mode set to 1, it means that the clients are not allowed to send any Tx on the current channel, and that includes the deauthentication frame. Make sure that we don't send the deauthentication frame in this case. In iwlwifi, this caused a failure to flush queues since the firmware already closed the queues after having parsed the CSA IE. Then mac80211 would wait until the deauthentication frame would go out (drv_flush(drop=false)) and that would never happen. Signed-off-by: Emmanuel Grumbach Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- net/mac80211/mlme.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 22b699460176..b046bf95eb3c 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1270,6 +1270,16 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, cbss->beacon_interval)); return; drop_connection: + /* + * This is just so that the disconnect flow will know that + * we were trying to switch channel and failed. In case the + * mode is 1 (we are not allowed to Tx), we will know not to + * send a deauthentication frame. Those two fields will be + * reset when the disconnection worker runs. + */ + sdata->vif.csa_active = true; + sdata->csa_block_tx = csa_ie.mode; + ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); mutex_unlock(&local->chanctx_mtx); mutex_unlock(&local->mtx); @@ -2453,6 +2463,7 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; + bool tx; sdata_lock(sdata); if (!ifmgd->associated) { @@ -2460,6 +2471,8 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) return; } + tx = !sdata->csa_block_tx; + /* AP is probably out of range (or not reachable for another reason) so * remove the bss struct for that AP. */ @@ -2467,7 +2480,7 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, - true, frame_buf); + tx, frame_buf); mutex_lock(&local->mtx); sdata->vif.csa_active = false; ifmgd->csa_waiting_bcn = false; @@ -2478,7 +2491,7 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) } mutex_unlock(&local->mtx); - ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, + ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), tx, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY); sdata_unlock(sdata); From c6e57b3896fc76299913b8cfd82d853bee8a2c84 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Fri, 31 Aug 2018 11:31:13 +0300 Subject: [PATCH 0518/1762] mac80211: shorten the IBSS debug messages When tracing is enabled, all the debug messages are recorded and must not exceed MAX_MSG_LEN (100) columns. Longer debug messages grant the user with: WARNING: CPU: 3 PID: 32642 at /tmp/wifi-core-20180806094828/src/iwlwifi-stack-dev/net/mac80211/./trace_msg.h:32 trace_event_raw_event_mac80211_msg_event+0xab/0xc0 [mac80211] Workqueue: phy1 ieee80211_iface_work [mac80211] RIP: 0010:trace_event_raw_event_mac80211_msg_event+0xab/0xc0 [mac80211] Call Trace: __sdata_dbg+0xbd/0x120 [mac80211] ieee80211_ibss_rx_queued_mgmt+0x15f/0x510 [mac80211] ieee80211_iface_work+0x21d/0x320 [mac80211] Signed-off-by: Emmanuel Grumbach Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- net/mac80211/ibss.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 6449a1c2283b..f0f5fedb8caa 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -947,8 +947,8 @@ static void ieee80211_rx_mgmt_deauth_ibss(struct ieee80211_sub_if_data *sdata, if (len < IEEE80211_DEAUTH_FRAME_LEN) return; - ibss_dbg(sdata, "RX DeAuth SA=%pM DA=%pM BSSID=%pM (reason: %d)\n", - mgmt->sa, mgmt->da, mgmt->bssid, reason); + ibss_dbg(sdata, "RX DeAuth SA=%pM DA=%pM\n", mgmt->sa, mgmt->da); + ibss_dbg(sdata, "\tBSSID=%pM (reason: %d)\n", mgmt->bssid, reason); sta_info_destroy_addr(sdata, mgmt->sa); } @@ -966,9 +966,9 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata, auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg); auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction); - ibss_dbg(sdata, - "RX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=%d)\n", - mgmt->sa, mgmt->da, mgmt->bssid, auth_transaction); + ibss_dbg(sdata, "RX Auth SA=%pM DA=%pM\n", mgmt->sa, mgmt->da); + ibss_dbg(sdata, "\tBSSID=%pM (auth_transaction=%d)\n", + mgmt->bssid, auth_transaction); if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1) return; @@ -1175,10 +1175,10 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, rx_timestamp = drv_get_tsf(local, sdata); } - ibss_dbg(sdata, - "RX beacon SA=%pM BSSID=%pM TSF=0x%llx BCN=0x%llx diff=%lld @%lu\n", + ibss_dbg(sdata, "RX beacon SA=%pM BSSID=%pM TSF=0x%llx\n", mgmt->sa, mgmt->bssid, - (unsigned long long)rx_timestamp, + (unsigned long long)rx_timestamp); + ibss_dbg(sdata, "\tBCN=0x%llx diff=%lld @%lu\n", (unsigned long long)beacon_timestamp, (unsigned long long)(rx_timestamp - beacon_timestamp), jiffies); @@ -1537,9 +1537,9 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, tx_last_beacon = drv_tx_last_beacon(local); - ibss_dbg(sdata, - "RX ProbeReq SA=%pM DA=%pM BSSID=%pM (tx_last_beacon=%d)\n", - mgmt->sa, mgmt->da, mgmt->bssid, tx_last_beacon); + ibss_dbg(sdata, "RX ProbeReq SA=%pM DA=%pM\n", mgmt->sa, mgmt->da); + ibss_dbg(sdata, "\tBSSID=%pM (tx_last_beacon=%d)\n", + mgmt->bssid, tx_last_beacon); if (!tx_last_beacon && is_multicast_ether_addr(mgmt->da)) return; From 4331f4d5ada5684fc77fa16e3f6177f077c9e6ec Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 2 Sep 2018 19:30:53 -0700 Subject: [PATCH 0519/1762] x86: Fix kernel-doc atomic.h warnings Fix kernel-doc warnings in arch/x86/include/asm/atomic.h that are caused by having a #define macro between the kernel-doc notation and the function name. Fixed by moving the #define macro to after the function implementation. Make the same change for atomic64_{32,64}.h for consistency even though there were no kernel-doc warnings found in these header files, but there would be if they were used in generation of documentation. Fixes these kernel-doc warnings: ../arch/x86/include/asm/atomic.h:84: warning: Excess function parameter 'i' description in 'arch_atomic_sub_and_test' ../arch/x86/include/asm/atomic.h:84: warning: Excess function parameter 'v' description in 'arch_atomic_sub_and_test' ../arch/x86/include/asm/atomic.h:96: warning: Excess function parameter 'v' description in 'arch_atomic_inc' ../arch/x86/include/asm/atomic.h:109: warning: Excess function parameter 'v' description in 'arch_atomic_dec' ../arch/x86/include/asm/atomic.h:124: warning: Excess function parameter 'v' description in 'arch_atomic_dec_and_test' ../arch/x86/include/asm/atomic.h:138: warning: Excess function parameter 'v' description in 'arch_atomic_inc_and_test' ../arch/x86/include/asm/atomic.h:153: warning: Excess function parameter 'i' description in 'arch_atomic_add_negative' ../arch/x86/include/asm/atomic.h:153: warning: Excess function parameter 'v' description in 'arch_atomic_add_negative' Fixes: 18cc1814d4e7 ("atomics/treewide: Make test ops optional") Signed-off-by: Randy Dunlap Signed-off-by: Thomas Gleixner Cc: Mark Rutland Link: https://lkml.kernel.org/r/0a1e678d-c8c5-b32c-2640-ed4e94d399d2@infradead.org --- arch/x86/include/asm/atomic.h | 12 ++++++------ arch/x86/include/asm/atomic64_32.h | 8 ++++---- arch/x86/include/asm/atomic64_64.h | 12 ++++++------ 3 files changed, 16 insertions(+), 16 deletions(-) diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h index b143717b92b3..ce84388e540c 100644 --- a/arch/x86/include/asm/atomic.h +++ b/arch/x86/include/asm/atomic.h @@ -80,11 +80,11 @@ static __always_inline void arch_atomic_sub(int i, atomic_t *v) * true if the result is zero, or false for all * other cases. */ -#define arch_atomic_sub_and_test arch_atomic_sub_and_test static __always_inline bool arch_atomic_sub_and_test(int i, atomic_t *v) { GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, "er", i, "%0", e); } +#define arch_atomic_sub_and_test arch_atomic_sub_and_test /** * arch_atomic_inc - increment atomic variable @@ -92,12 +92,12 @@ static __always_inline bool arch_atomic_sub_and_test(int i, atomic_t *v) * * Atomically increments @v by 1. */ -#define arch_atomic_inc arch_atomic_inc static __always_inline void arch_atomic_inc(atomic_t *v) { asm volatile(LOCK_PREFIX "incl %0" : "+m" (v->counter)); } +#define arch_atomic_inc arch_atomic_inc /** * arch_atomic_dec - decrement atomic variable @@ -105,12 +105,12 @@ static __always_inline void arch_atomic_inc(atomic_t *v) * * Atomically decrements @v by 1. */ -#define arch_atomic_dec arch_atomic_dec static __always_inline void arch_atomic_dec(atomic_t *v) { asm volatile(LOCK_PREFIX "decl %0" : "+m" (v->counter)); } +#define arch_atomic_dec arch_atomic_dec /** * arch_atomic_dec_and_test - decrement and test @@ -120,11 +120,11 @@ static __always_inline void arch_atomic_dec(atomic_t *v) * returns true if the result is 0, or false for all other * cases. */ -#define arch_atomic_dec_and_test arch_atomic_dec_and_test static __always_inline bool arch_atomic_dec_and_test(atomic_t *v) { GEN_UNARY_RMWcc(LOCK_PREFIX "decl", v->counter, "%0", e); } +#define arch_atomic_dec_and_test arch_atomic_dec_and_test /** * arch_atomic_inc_and_test - increment and test @@ -134,11 +134,11 @@ static __always_inline bool arch_atomic_dec_and_test(atomic_t *v) * and returns true if the result is zero, or false for all * other cases. */ -#define arch_atomic_inc_and_test arch_atomic_inc_and_test static __always_inline bool arch_atomic_inc_and_test(atomic_t *v) { GEN_UNARY_RMWcc(LOCK_PREFIX "incl", v->counter, "%0", e); } +#define arch_atomic_inc_and_test arch_atomic_inc_and_test /** * arch_atomic_add_negative - add and test if negative @@ -149,11 +149,11 @@ static __always_inline bool arch_atomic_inc_and_test(atomic_t *v) * if the result is negative, or false when * result is greater than or equal to zero. */ -#define arch_atomic_add_negative arch_atomic_add_negative static __always_inline bool arch_atomic_add_negative(int i, atomic_t *v) { GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, "er", i, "%0", s); } +#define arch_atomic_add_negative arch_atomic_add_negative /** * arch_atomic_add_return - add integer and return diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h index ef959f02d070..6a5b0ec460da 100644 --- a/arch/x86/include/asm/atomic64_32.h +++ b/arch/x86/include/asm/atomic64_32.h @@ -205,12 +205,12 @@ static inline long long arch_atomic64_sub(long long i, atomic64_t *v) * * Atomically increments @v by 1. */ -#define arch_atomic64_inc arch_atomic64_inc static inline void arch_atomic64_inc(atomic64_t *v) { __alternative_atomic64(inc, inc_return, /* no output */, "S" (v) : "memory", "eax", "ecx", "edx"); } +#define arch_atomic64_inc arch_atomic64_inc /** * arch_atomic64_dec - decrement atomic64 variable @@ -218,12 +218,12 @@ static inline void arch_atomic64_inc(atomic64_t *v) * * Atomically decrements @v by 1. */ -#define arch_atomic64_dec arch_atomic64_dec static inline void arch_atomic64_dec(atomic64_t *v) { __alternative_atomic64(dec, dec_return, /* no output */, "S" (v) : "memory", "eax", "ecx", "edx"); } +#define arch_atomic64_dec arch_atomic64_dec /** * arch_atomic64_add_unless - add unless the number is a given value @@ -245,7 +245,6 @@ static inline int arch_atomic64_add_unless(atomic64_t *v, long long a, return (int)a; } -#define arch_atomic64_inc_not_zero arch_atomic64_inc_not_zero static inline int arch_atomic64_inc_not_zero(atomic64_t *v) { int r; @@ -253,8 +252,8 @@ static inline int arch_atomic64_inc_not_zero(atomic64_t *v) "S" (v) : "ecx", "edx", "memory"); return r; } +#define arch_atomic64_inc_not_zero arch_atomic64_inc_not_zero -#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive static inline long long arch_atomic64_dec_if_positive(atomic64_t *v) { long long r; @@ -262,6 +261,7 @@ static inline long long arch_atomic64_dec_if_positive(atomic64_t *v) "S" (v) : "ecx", "memory"); return r; } +#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive #undef alternative_atomic64 #undef __alternative_atomic64 diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h index 4343d9b4f30e..5f851d92eecd 100644 --- a/arch/x86/include/asm/atomic64_64.h +++ b/arch/x86/include/asm/atomic64_64.h @@ -71,11 +71,11 @@ static inline void arch_atomic64_sub(long i, atomic64_t *v) * true if the result is zero, or false for all * other cases. */ -#define arch_atomic64_sub_and_test arch_atomic64_sub_and_test static inline bool arch_atomic64_sub_and_test(long i, atomic64_t *v) { GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, "er", i, "%0", e); } +#define arch_atomic64_sub_and_test arch_atomic64_sub_and_test /** * arch_atomic64_inc - increment atomic64 variable @@ -83,13 +83,13 @@ static inline bool arch_atomic64_sub_and_test(long i, atomic64_t *v) * * Atomically increments @v by 1. */ -#define arch_atomic64_inc arch_atomic64_inc static __always_inline void arch_atomic64_inc(atomic64_t *v) { asm volatile(LOCK_PREFIX "incq %0" : "=m" (v->counter) : "m" (v->counter)); } +#define arch_atomic64_inc arch_atomic64_inc /** * arch_atomic64_dec - decrement atomic64 variable @@ -97,13 +97,13 @@ static __always_inline void arch_atomic64_inc(atomic64_t *v) * * Atomically decrements @v by 1. */ -#define arch_atomic64_dec arch_atomic64_dec static __always_inline void arch_atomic64_dec(atomic64_t *v) { asm volatile(LOCK_PREFIX "decq %0" : "=m" (v->counter) : "m" (v->counter)); } +#define arch_atomic64_dec arch_atomic64_dec /** * arch_atomic64_dec_and_test - decrement and test @@ -113,11 +113,11 @@ static __always_inline void arch_atomic64_dec(atomic64_t *v) * returns true if the result is 0, or false for all other * cases. */ -#define arch_atomic64_dec_and_test arch_atomic64_dec_and_test static inline bool arch_atomic64_dec_and_test(atomic64_t *v) { GEN_UNARY_RMWcc(LOCK_PREFIX "decq", v->counter, "%0", e); } +#define arch_atomic64_dec_and_test arch_atomic64_dec_and_test /** * arch_atomic64_inc_and_test - increment and test @@ -127,11 +127,11 @@ static inline bool arch_atomic64_dec_and_test(atomic64_t *v) * and returns true if the result is zero, or false for all * other cases. */ -#define arch_atomic64_inc_and_test arch_atomic64_inc_and_test static inline bool arch_atomic64_inc_and_test(atomic64_t *v) { GEN_UNARY_RMWcc(LOCK_PREFIX "incq", v->counter, "%0", e); } +#define arch_atomic64_inc_and_test arch_atomic64_inc_and_test /** * arch_atomic64_add_negative - add and test if negative @@ -142,11 +142,11 @@ static inline bool arch_atomic64_inc_and_test(atomic64_t *v) * if the result is negative, or false when * result is greater than or equal to zero. */ -#define arch_atomic64_add_negative arch_atomic64_add_negative static inline bool arch_atomic64_add_negative(long i, atomic64_t *v) { GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, "er", i, "%0", s); } +#define arch_atomic64_add_negative arch_atomic64_add_negative /** * arch_atomic64_add_return - add and return From 63a886f38dd96868e33488eccee8ed427144d397 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 2 Sep 2018 19:38:10 -0700 Subject: [PATCH 0520/1762] ASoC: fix soc-core.c kernel-doc warning Fix kernel-doc warning: ../sound/soc/soc-core.c:2918: warning: Excess function parameter 'legacy_dai_naming' description in 'snd_soc_register_dais' Signed-off-by: Randy Dunlap Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 2a73630d0680..e9c2304afaf1 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -2944,8 +2944,6 @@ static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, * @component: The component the DAIs are registered for * @dai_drv: DAI driver to use for the DAIs * @count: Number of DAIs - * @legacy_dai_naming: Use the legacy naming scheme and let the DAI inherit the - * parent's name. */ static int snd_soc_register_dais(struct snd_soc_component *component, struct snd_soc_dai_driver *dai_drv, size_t count) From 7001cab1dabc0b72b2b672ef58a90ab64f5e2343 Mon Sep 17 00:00:00 2001 From: Marcel Ziswiler Date: Wed, 29 Aug 2018 08:47:57 +0200 Subject: [PATCH 0521/1762] spi: tegra20-slink: explicitly enable/disable clock Depending on the SPI instance one may get an interrupt storm upon requesting resp. interrupt unless the clock is explicitly enabled beforehand. This has been observed trying to bring up instance 4 on T20. Signed-off-by: Marcel Ziswiler Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/spi/spi-tegra20-slink.c | 31 +++++++++++++++++++++++-------- 1 file changed, 23 insertions(+), 8 deletions(-) diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c index 6f7b946b5ced..1427f343b39a 100644 --- a/drivers/spi/spi-tegra20-slink.c +++ b/drivers/spi/spi-tegra20-slink.c @@ -1063,6 +1063,24 @@ static int tegra_slink_probe(struct platform_device *pdev) goto exit_free_master; } + /* disabled clock may cause interrupt storm upon request */ + tspi->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(tspi->clk)) { + ret = PTR_ERR(tspi->clk); + dev_err(&pdev->dev, "Can not get clock %d\n", ret); + goto exit_free_master; + } + ret = clk_prepare(tspi->clk); + if (ret < 0) { + dev_err(&pdev->dev, "Clock prepare failed %d\n", ret); + goto exit_free_master; + } + ret = clk_enable(tspi->clk); + if (ret < 0) { + dev_err(&pdev->dev, "Clock enable failed %d\n", ret); + goto exit_free_master; + } + spi_irq = platform_get_irq(pdev, 0); tspi->irq = spi_irq; ret = request_threaded_irq(tspi->irq, tegra_slink_isr, @@ -1071,14 +1089,7 @@ static int tegra_slink_probe(struct platform_device *pdev) if (ret < 0) { dev_err(&pdev->dev, "Failed to register ISR for IRQ %d\n", tspi->irq); - goto exit_free_master; - } - - tspi->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(tspi->clk)) { - dev_err(&pdev->dev, "can not get clock\n"); - ret = PTR_ERR(tspi->clk); - goto exit_free_irq; + goto exit_clk_disable; } tspi->rst = devm_reset_control_get_exclusive(&pdev->dev, "spi"); @@ -1138,6 +1149,8 @@ exit_rx_dma_free: tegra_slink_deinit_dma_param(tspi, true); exit_free_irq: free_irq(spi_irq, tspi); +exit_clk_disable: + clk_disable(tspi->clk); exit_free_master: spi_master_put(master); return ret; @@ -1150,6 +1163,8 @@ static int tegra_slink_remove(struct platform_device *pdev) free_irq(tspi->irq, tspi); + clk_disable(tspi->clk); + if (tspi->tx_dma_chan) tegra_slink_deinit_dma_param(tspi, false); From c43c5e9f524ec914e7e202f9c5ab91779629ccc6 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Mon, 3 Sep 2018 10:15:33 +0200 Subject: [PATCH 0522/1762] timekeeping: Fix declaration of read_persistent_wall_and_boot_offset() It is read_persistent_wall_and_boot_offset() and not read_persistent_clock_and_boot_offset() Fixes: 3eca993740b8eb40f51 ("timekeeping: Replace read_boot_clock64() with read_persistent_wall_and_boot_offset()") Signed-off-by: Christian Borntraeger Signed-off-by: Thomas Gleixner Cc: Pavel Tatashin Link: https://lkml.kernel.org/r/20180903081533.34366-1-borntraeger@de.ibm.com --- include/linux/timekeeping.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h index 5d738804e3d6..a5a3cfc3c2fa 100644 --- a/include/linux/timekeeping.h +++ b/include/linux/timekeeping.h @@ -258,8 +258,8 @@ extern void ktime_get_snapshot(struct system_time_snapshot *systime_snapshot); extern int persistent_clock_is_local; extern void read_persistent_clock64(struct timespec64 *ts); -void read_persistent_clock_and_boot_offset(struct timespec64 *wall_clock, - struct timespec64 *boot_offset); +void read_persistent_wall_and_boot_offset(struct timespec64 *wall_clock, + struct timespec64 *boot_offset); extern int update_persistent_clock64(struct timespec64 now); /* From 9bdda4e9cf2dcecb60a0683b10ffb8cd7e5f2f45 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Sat, 1 Sep 2018 09:40:01 +0300 Subject: [PATCH 0523/1762] fsnotify: fix ignore mask logic in fsnotify() Commit 92183a42898d ("fsnotify: fix ignore mask logic in send_to_group()") acknoledges the use case of ignoring an event on an inode mark, because of an ignore mask on a mount mark of the same group (i.e. I want to get all events on this file, except for the events that came from that mount). This change depends on correctly merging the inode marks and mount marks group lists, so that the mount mark ignore mask would be tested in send_to_group(). Alas, the merging of the lists did not take into account the case where event in question is not in the mask of any of the mount marks. To fix this, completely remove the tests for inode and mount event masks from the lists merging code. Fixes: 92183a42898d ("fsnotify: fix ignore mask logic in send_to_group") Signed-off-by: Amir Goldstein Signed-off-by: Jan Kara --- fs/notify/fsnotify.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c index f174397b63a0..ababdbfab537 100644 --- a/fs/notify/fsnotify.c +++ b/fs/notify/fsnotify.c @@ -351,16 +351,9 @@ int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is, iter_info.srcu_idx = srcu_read_lock(&fsnotify_mark_srcu); - if ((mask & FS_MODIFY) || - (test_mask & to_tell->i_fsnotify_mask)) { - iter_info.marks[FSNOTIFY_OBJ_TYPE_INODE] = - fsnotify_first_mark(&to_tell->i_fsnotify_marks); - } - - if (mnt && ((mask & FS_MODIFY) || - (test_mask & mnt->mnt_fsnotify_mask))) { - iter_info.marks[FSNOTIFY_OBJ_TYPE_INODE] = - fsnotify_first_mark(&to_tell->i_fsnotify_marks); + iter_info.marks[FSNOTIFY_OBJ_TYPE_INODE] = + fsnotify_first_mark(&to_tell->i_fsnotify_marks); + if (mnt) { iter_info.marks[FSNOTIFY_OBJ_TYPE_VFSMOUNT] = fsnotify_first_mark(&mnt->mnt_fsnotify_marks); } From 80863ee222d37b1797cea74d2257ad6d68444d30 Mon Sep 17 00:00:00 2001 From: "Andrew F. Davis" Date: Fri, 31 Aug 2018 13:24:31 -0500 Subject: [PATCH 0524/1762] ASoC: tlv320aic31xx: Add short circuit detection support These devices support detecting and reporting short circuits across the output stages. Add support for reporting these issue. Do this by registering an interrupt if available and enabling this error to trigger that interrupt in the device. Signed-off-by: Andrew F. Davis Signed-off-by: Mark Brown --- sound/soc/codecs/tlv320aic31xx.c | 55 ++++++++++++++++++++++++++++++++ sound/soc/codecs/tlv320aic31xx.h | 16 ++++++++++ 2 files changed, 71 insertions(+) diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c index bf92d36b8f8a..2abe51d9f879 100644 --- a/sound/soc/codecs/tlv320aic31xx.c +++ b/sound/soc/codecs/tlv320aic31xx.c @@ -167,6 +167,7 @@ struct aic31xx_priv { u8 p_div; int rate_div_line; bool master_dapm_route_applied; + int irq; }; struct aic31xx_rate_divs { @@ -1391,6 +1392,40 @@ static const struct acpi_device_id aic31xx_acpi_match[] = { MODULE_DEVICE_TABLE(acpi, aic31xx_acpi_match); #endif +static irqreturn_t aic31xx_irq(int irq, void *data) +{ + struct aic31xx_priv *aic31xx = data; + struct device *dev = aic31xx->dev; + unsigned int value; + bool handled = false; + int ret; + + ret = regmap_read(aic31xx->regmap, AIC31XX_INTRDACFLAG, &value); + if (ret) { + dev_err(dev, "Failed to read interrupt mask: %d\n", ret); + goto exit; + } + + if (value) + handled = true; + else + goto exit; + + if (value & AIC31XX_HPLSCDETECT) + dev_err(dev, "Short circuit on Left output is detected\n"); + if (value & AIC31XX_HPRSCDETECT) + dev_err(dev, "Short circuit on Right output is detected\n"); + if (value & ~(AIC31XX_HPLSCDETECT | + AIC31XX_HPRSCDETECT)) + dev_err(dev, "Unknown DAC interrupt flags: 0x%08x\n", value); + +exit: + if (handled) + return IRQ_HANDLED; + else + return IRQ_NONE; +} + static int aic31xx_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { @@ -1413,6 +1448,7 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c, return ret; } aic31xx->dev = &i2c->dev; + aic31xx->irq = i2c->irq; aic31xx->codec_type = id->driver_data; @@ -1456,6 +1492,25 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c, return ret; } + if (aic31xx->irq > 0) { + regmap_update_bits(aic31xx->regmap, AIC31XX_GPIO1, + AIC31XX_GPIO1_FUNC_MASK, + AIC31XX_GPIO1_INT1 << + AIC31XX_GPIO1_FUNC_SHIFT); + + regmap_write(aic31xx->regmap, AIC31XX_INT1CTRL, + AIC31XX_SC); + + ret = devm_request_threaded_irq(aic31xx->dev, aic31xx->irq, + NULL, aic31xx_irq, + IRQF_ONESHOT, "aic31xx-irq", + aic31xx); + if (ret) { + dev_err(aic31xx->dev, "Unable to request IRQ\n"); + return ret; + } + } + if (aic31xx->codec_type & DAC31XX_BIT) return devm_snd_soc_register_component(&i2c->dev, &soc_codec_driver_aic31xx, diff --git a/sound/soc/codecs/tlv320aic31xx.h b/sound/soc/codecs/tlv320aic31xx.h index 0b587585b38b..52e171988906 100644 --- a/sound/soc/codecs/tlv320aic31xx.h +++ b/sound/soc/codecs/tlv320aic31xx.h @@ -191,6 +191,22 @@ struct aic31xx_pdata { #define AIC31XX_SC BIT(3) #define AIC31XX_ENGINE BIT(2) +/* AIC31XX_GPIO1 */ +#define AIC31XX_GPIO1_FUNC_MASK GENMASK(5, 2) +#define AIC31XX_GPIO1_FUNC_SHIFT 2 +#define AIC31XX_GPIO1_DISABLED 0x00 +#define AIC31XX_GPIO1_INPUT 0x01 +#define AIC31XX_GPIO1_GPI 0x02 +#define AIC31XX_GPIO1_GPO 0x03 +#define AIC31XX_GPIO1_CLKOUT 0x04 +#define AIC31XX_GPIO1_INT1 0x05 +#define AIC31XX_GPIO1_INT2 0x06 +#define AIC31XX_GPIO1_ADC_WCLK 0x07 +#define AIC31XX_GPIO1_SBCLK 0x08 +#define AIC31XX_GPIO1_SWCLK 0x09 +#define AIC31XX_GPIO1_ADC_MOD_CLK 0x10 +#define AIC31XX_GPIO1_SDOUT 0x11 + /* AIC31XX_DACSETUP */ #define AIC31XX_SOFTSTEP_MASK GENMASK(1, 0) From b5c088689847372794500f83b65673aaa8ca4d8d Mon Sep 17 00:00:00 2001 From: Jiada Wang Date: Mon, 3 Sep 2018 07:05:11 +0000 Subject: [PATCH 0525/1762] ASoC: rsnd: add warning message to rsnd_kctrl_accept_runtime() Add warning message to rsnd_kctrl_accept_runtime(), when kctrl update is rejected due to corresponding dai-link is idle. So that user can notice the reason of kctrl update failure. Signed-off-by: Jiada Wang Signed-off-by: Timo Wischer [kuninori: adjust to upstream] Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/core.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index f8425d8b44d2..ab7e317bbed8 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -1263,8 +1263,15 @@ int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io) int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io) { struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); + struct rsnd_priv *priv = rsnd_io_to_priv(io); + struct device *dev = rsnd_priv_to_dev(priv); - return !!runtime; + if (!runtime) { + dev_warn(dev, "Can't update kctrl when idle\n"); + return 0; + } + + return 1; } struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg) From fb2815f44a9eb341ed8990263855a266960a5135 Mon Sep 17 00:00:00 2001 From: Dragos Tarcatu Date: Mon, 3 Sep 2018 07:05:42 +0000 Subject: [PATCH 0526/1762] ASoC: rsnd: add support for 16/24 bit slot widths The slot width (system word length) was fixed at 32 bits. This patch allows also setting it to 16 or 24 bits. Signed-off-by: Dragos Tarcatu Signed-off-by: Jiada Wang Signed-off-by: Timo Wischer [Kuninori: tidyup for upstream] Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/core.c | 32 ++++++++++++++++++------ sound/soc/sh/rcar/rsnd.h | 8 +++++- sound/soc/sh/rcar/ssi.c | 54 +++++++++++++++++++++++++++++----------- 3 files changed, 72 insertions(+), 22 deletions(-) diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index ab7e317bbed8..ce0a3a61c441 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -540,6 +540,14 @@ int rsnd_rdai_ssi_lane_ctrl(struct rsnd_dai *rdai, return rdai->ssi_lane; } +int rsnd_rdai_width_ctrl(struct rsnd_dai *rdai, int width) +{ + if (width > 0) + rdai->chan_width = width; + + return rdai->chan_width; +} + struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id) { if ((id < 0) || (id >= rsnd_rdai_nr(priv))) @@ -720,6 +728,16 @@ static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai, struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); struct device *dev = rsnd_priv_to_dev(priv); + switch (slot_width) { + case 16: + case 24: + case 32: + break; + default: + dev_err(dev, "unsupported slot width value: %d\n", slot_width); + return -EINVAL; + } + switch (slots) { case 2: case 6: @@ -727,6 +745,7 @@ static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai, /* TDM Extend Mode */ rsnd_rdai_channels_set(rdai, slots); rsnd_rdai_ssi_lane_set(rdai, 1); + rsnd_rdai_width_set(rdai, slot_width); break; default: dev_err(dev, "unsupported TDM slots (%d)\n", slots); @@ -755,7 +774,7 @@ static unsigned int rsnd_soc_hw_rate_list[] = { 192000, }; -static int rsnd_soc_hw_rule(struct rsnd_priv *priv, +static int rsnd_soc_hw_rule(struct rsnd_dai *rdai, unsigned int *list, int list_num, struct snd_interval *baseline, struct snd_interval *iv) { @@ -772,14 +791,14 @@ static int rsnd_soc_hw_rule(struct rsnd_priv *priv, if (!snd_interval_test(iv, list[i])) continue; - rate = rsnd_ssi_clk_query(priv, + rate = rsnd_ssi_clk_query(rdai, baseline->min, list[i], NULL); if (rate > 0) { p.min = min(p.min, list[i]); p.max = max(p.max, list[i]); } - rate = rsnd_ssi_clk_query(priv, + rate = rsnd_ssi_clk_query(rdai, baseline->max, list[i], NULL); if (rate > 0) { p.min = min(p.min, list[i]); @@ -799,7 +818,6 @@ static int __rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params, struct snd_interval ic; struct snd_soc_dai *dai = rule->private; struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); - struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); struct rsnd_dai_stream *io = is_play ? &rdai->playback : &rdai->capture; /* @@ -811,7 +829,7 @@ static int __rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params, ic.min = ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params); - return rsnd_soc_hw_rule(priv, rsnd_soc_hw_rate_list, + return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_rate_list, ARRAY_SIZE(rsnd_soc_hw_rate_list), &ic, ir); } @@ -837,7 +855,6 @@ static int __rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params, struct snd_interval ic; struct snd_soc_dai *dai = rule->private; struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); - struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); struct rsnd_dai_stream *io = is_play ? &rdai->playback : &rdai->capture; /* @@ -849,7 +866,7 @@ static int __rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params, ic.min = ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params); - return rsnd_soc_hw_rule(priv, rsnd_soc_hw_channels_list, + return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_channels_list, ARRAY_SIZE(rsnd_soc_hw_channels_list), ir, &ic); } @@ -1072,6 +1089,7 @@ static void __rsnd_dai_probe(struct rsnd_priv *priv, rdai->capture.rdai = rdai; rsnd_rdai_channels_set(rdai, 2); /* default 2ch */ rsnd_rdai_ssi_lane_set(rdai, 1); /* default 1lane */ + rsnd_rdai_width_set(rdai, 32); /* default 32bit width */ for (io_i = 0;; io_i++) { playback = of_parse_phandle(dai_np, "playback", io_i); diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h index 96d93330b1e1..698b08155b06 100644 --- a/sound/soc/sh/rcar/rsnd.h +++ b/sound/soc/sh/rcar/rsnd.h @@ -460,6 +460,7 @@ struct rsnd_dai { int max_channels; /* 2ch - 16ch */ int ssi_lane; /* 1lane - 4lane */ + int chan_width; /* 16/24/32 bit width */ unsigned int clk_master:1; unsigned int bit_clk_inv:1; @@ -493,6 +494,11 @@ int rsnd_rdai_channels_ctrl(struct rsnd_dai *rdai, int rsnd_rdai_ssi_lane_ctrl(struct rsnd_dai *rdai, int ssi_lane); +#define rsnd_rdai_width_set(rdai, width) \ + rsnd_rdai_width_ctrl(rdai, width) +#define rsnd_rdai_width_get(rdai) \ + rsnd_rdai_width_ctrl(rdai, 0) +int rsnd_rdai_width_ctrl(struct rsnd_dai *rdai, int width); void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io); int rsnd_dai_connect(struct rsnd_mod *mod, struct rsnd_dai_stream *io, @@ -702,7 +708,7 @@ int __rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod); void rsnd_parse_connect_ssi(struct rsnd_dai *rdai, struct device_node *playback, struct device_node *capture); -unsigned int rsnd_ssi_clk_query(struct rsnd_priv *priv, +unsigned int rsnd_ssi_clk_query(struct rsnd_dai *rdai, int param1, int param2, int *idx); /* diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index 8304e4ec9242..f707f53748bd 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -42,7 +42,13 @@ #define DWL_24 (5 << 19) /* Data Word Length */ #define DWL_32 (6 << 19) /* Data Word Length */ +/* + * System word length + */ +#define SWL_16 (1 << 16) /* R/W System Word Length */ +#define SWL_24 (2 << 16) /* R/W System Word Length */ #define SWL_32 (3 << 16) /* R/W System Word Length */ + #define SCKD (1 << 15) /* Serial Bit Clock Direction */ #define SWSD (1 << 14) /* Serial WS Direction */ #define SCKP (1 << 13) /* Serial Bit Clock Polarity */ @@ -220,14 +226,32 @@ u32 rsnd_ssi_multi_slaves_runtime(struct rsnd_dai_stream *io) return 0; } -unsigned int rsnd_ssi_clk_query(struct rsnd_priv *priv, +static u32 rsnd_rdai_width_to_swl(struct rsnd_dai *rdai) +{ + struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); + struct device *dev = rsnd_priv_to_dev(priv); + int width = rsnd_rdai_width_get(rdai); + + switch (width) { + case 32: return SWL_32; + case 24: return SWL_24; + case 16: return SWL_16; + } + + dev_err(dev, "unsupported slot width value: %d\n", width); + return 0; +} + +unsigned int rsnd_ssi_clk_query(struct rsnd_dai *rdai, int param1, int param2, int *idx) { + struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); int ssi_clk_mul_table[] = { 1, 2, 4, 8, 16, 6, 12, }; int j, ret; unsigned int main_rate; + int width = rsnd_rdai_width_get(rdai); for (j = 0; j < ARRAY_SIZE(ssi_clk_mul_table); j++) { @@ -240,12 +264,7 @@ unsigned int rsnd_ssi_clk_query(struct rsnd_priv *priv, if (j == 0) continue; - /* - * this driver is assuming that - * system word is 32bit x chan - * see rsnd_ssi_init() - */ - main_rate = 32 * param1 * param2 * ssi_clk_mul_table[j]; + main_rate = width * param1 * param2 * ssi_clk_mul_table[j]; ret = rsnd_adg_clk_query(priv, main_rate); if (ret < 0) @@ -292,7 +311,7 @@ static int rsnd_ssi_master_clk_start(struct rsnd_mod *mod, return 0; } - main_rate = rsnd_ssi_clk_query(priv, rate, chan, &idx); + main_rate = rsnd_ssi_clk_query(rdai, rate, chan, &idx); if (!main_rate) { dev_err(dev, "unsupported clock rate\n"); return -EIO; @@ -312,7 +331,8 @@ static int rsnd_ssi_master_clk_start(struct rsnd_mod *mod, * SSICR : FORCE, SCKD, SWSD * SSIWSR : CONT */ - ssi->cr_clk = FORCE | SWL_32 | SCKD | SWSD | CKDV(idx); + ssi->cr_clk = FORCE | rsnd_rdai_width_to_swl(rdai) | + SCKD | SWSD | CKDV(idx); ssi->wsr = CONT; ssi->rate = rate; @@ -357,11 +377,7 @@ static void rsnd_ssi_config_init(struct rsnd_mod *mod, is_tdm = rsnd_runtime_is_ssi_tdm(io); - /* - * always use 32bit system word. - * see also rsnd_ssi_master_clk_enable() - */ - cr_own |= FORCE | SWL_32; + cr_own |= FORCE | rsnd_rdai_width_to_swl(rdai); if (rdai->bit_clk_inv) cr_own |= SCKP; @@ -494,7 +510,17 @@ static int rsnd_ssi_hw_params(struct rsnd_mod *mod, struct snd_pcm_hw_params *params) { struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); + struct rsnd_dai *rdai = rsnd_io_to_rdai(io); int chan = params_channels(params); + unsigned int fmt_width = snd_pcm_format_width(params_format(params)); + + if (fmt_width > rdai->chan_width) { + struct rsnd_priv *priv = rsnd_io_to_priv(io); + struct device *dev = rsnd_priv_to_dev(priv); + + dev_err(dev, "invalid combination of slot-width and format-data-width\n"); + return -EINVAL; + } /* * snd_pcm_ops::hw_params will be called *before* From 3791b3ee4bb13c381868da89e9e6deb11de660ad Mon Sep 17 00:00:00 2001 From: Dragos Tarcatu Date: Mon, 3 Sep 2018 07:06:01 +0000 Subject: [PATCH 0527/1762] ASoC: rsnd: add support for the DSP_A/DSP_B formats Signed-off-by: Dragos Tarcatu Signed-off-by: Jiada Wang Signed-off-by: Timo Wischer [Kuninori: tidyup for upstream] Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/core.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index ce0a3a61c441..8a417768b7ef 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -689,6 +689,7 @@ static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) rdai->frm_clk_inv = 0; break; case SND_SOC_DAIFMT_LEFT_J: + case SND_SOC_DAIFMT_DSP_B: rdai->sys_delay = 1; rdai->data_alignment = 0; rdai->frm_clk_inv = 1; @@ -698,6 +699,11 @@ static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) rdai->data_alignment = 1; rdai->frm_clk_inv = 1; break; + case SND_SOC_DAIFMT_DSP_A: + rdai->sys_delay = 0; + rdai->data_alignment = 0; + rdai->frm_clk_inv = 1; + break; } /* set clock inversion */ From ba5d553b7bd71e63d639863e2cb09e0c9543b8b7 Mon Sep 17 00:00:00 2001 From: Dragos Tarcatu Date: Mon, 3 Sep 2018 07:06:29 +0000 Subject: [PATCH 0528/1762] ASoC: rsnd: add support for 8 bit S8 format This patch adds support for SNDRV_PCM_FMTBIT_S8 format. Signed-off-by: Dragos Tarcatu Signed-off-by: Jiada Wang Signed-off-by: Timo Wischer [Kuninori: tidyup for upstream] Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/core.c | 10 +++++++--- sound/soc/sh/rcar/ssi.c | 3 +++ 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index 8a417768b7ef..cd0ff1eef463 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -102,7 +102,9 @@ #include "rsnd.h" #define RSND_RATES SNDRV_PCM_RATE_8000_192000 -#define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE) +#define RSND_FMTS (SNDRV_PCM_FMTBIT_S8 |\ + SNDRV_PCM_FMTBIT_S16_LE |\ + SNDRV_PCM_FMTBIT_S24_LE) static const struct of_device_id rsnd_of_match[] = { { .compatible = "renesas,rcar_sound-gen1", .data = (void *)RSND_GEN1 }, @@ -280,6 +282,8 @@ u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io) struct device *dev = rsnd_priv_to_dev(priv); switch (snd_pcm_format_width(runtime->format)) { + case 8: + return 16 << 16; case 16: return 8 << 16; case 24: @@ -331,7 +335,7 @@ u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io) target = cmd ? cmd : ssiu; } - /* Non target mod or 24bit data needs normal DALIGN */ + /* Non target mod or non 16bit needs normal DALIGN */ if ((snd_pcm_format_width(runtime->format) != 16) || (mod != target)) return 0x76543210; @@ -367,7 +371,7 @@ u32 rsnd_get_busif_shift(struct rsnd_dai_stream *io, struct rsnd_mod *mod) * HW 24bit data is located as 0x******00 * */ - if (snd_pcm_format_width(runtime->format) == 16) + if (snd_pcm_format_width(runtime->format) != 24) return 0; for (i = 0; i < ARRAY_SIZE(playback_mods); i++) { diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index f707f53748bd..765ecc06c7c9 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -400,6 +400,9 @@ static void rsnd_ssi_config_init(struct rsnd_mod *mod, cr_own &= ~DWL_MASK; switch (snd_pcm_format_width(runtime->format)) { + case 8: + cr_own |= DWL_8; + break; case 16: cr_own |= DWL_16; break; From b735662fa473c0e3618a4d645ce797d31e0c9192 Mon Sep 17 00:00:00 2001 From: Jiada Wang Date: Mon, 3 Sep 2018 07:06:50 +0000 Subject: [PATCH 0529/1762] ASoC: rsnd: remove is_play parameter from hw_rule function Currently rsnd_dai_stream *io is set to either &rdai->playback or &rdai->capture based on whether it is a playback or capture stream, in __rsnd_soc_hw_rule_* functions, but this is not necessary, rsnd_dai_stream *io handler can be get from rule->private. This patch removes 'is_play' parameter from hw_rule function. Signed-off-by: Jiada Wang Signed-off-by: Timo Wischer [Kuninori: tidyup for upstream] Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/core.c | 54 +++++++++------------------------------- 1 file changed, 12 insertions(+), 42 deletions(-) diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index cd0ff1eef463..c66b3dade947 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -819,16 +819,14 @@ static int rsnd_soc_hw_rule(struct rsnd_dai *rdai, return snd_interval_refine(iv, &p); } -static int __rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params, - struct snd_pcm_hw_rule *rule, - int is_play) +static int rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) { struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); struct snd_interval ic; - struct snd_soc_dai *dai = rule->private; - struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); - struct rsnd_dai_stream *io = is_play ? &rdai->playback : &rdai->capture; + struct rsnd_dai_stream *io = rule->private; + struct rsnd_dai *rdai = rsnd_io_to_rdai(io); /* * possible sampling rate limitation is same as @@ -844,28 +842,14 @@ static int __rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params, &ic, ir); } -static int rsnd_soc_hw_rule_rate_playback(struct snd_pcm_hw_params *params, - struct snd_pcm_hw_rule *rule) -{ - return __rsnd_soc_hw_rule_rate(params, rule, 1); -} - -static int rsnd_soc_hw_rule_rate_capture(struct snd_pcm_hw_params *params, - struct snd_pcm_hw_rule *rule) -{ - return __rsnd_soc_hw_rule_rate(params, rule, 0); -} - -static int __rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params, - struct snd_pcm_hw_rule *rule, - int is_play) +static int rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) { struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); struct snd_interval ic; - struct snd_soc_dai *dai = rule->private; - struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); - struct rsnd_dai_stream *io = is_play ? &rdai->playback : &rdai->capture; + struct rsnd_dai_stream *io = rule->private; + struct rsnd_dai *rdai = rsnd_io_to_rdai(io); /* * possible sampling rate limitation is same as @@ -881,18 +865,6 @@ static int __rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params, ir, &ic); } -static int rsnd_soc_hw_rule_channels_playback(struct snd_pcm_hw_params *params, - struct snd_pcm_hw_rule *rule) -{ - return __rsnd_soc_hw_rule_channels(params, rule, 1); -} - -static int rsnd_soc_hw_rule_channels_capture(struct snd_pcm_hw_params *params, - struct snd_pcm_hw_rule *rule) -{ - return __rsnd_soc_hw_rule_channels(params, rule, 0); -} - static const struct snd_pcm_hardware rsnd_pcm_hardware = { .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP | @@ -949,14 +921,12 @@ static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream, int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, - is_play ? rsnd_soc_hw_rule_rate_playback : - rsnd_soc_hw_rule_rate_capture, - dai, + rsnd_soc_hw_rule_rate, + is_play ? &rdai->playback : &rdai->capture, SNDRV_PCM_HW_PARAM_CHANNELS, -1); snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, - is_play ? rsnd_soc_hw_rule_channels_playback : - rsnd_soc_hw_rule_channels_capture, - dai, + rsnd_soc_hw_rule_channels, + is_play ? &rdai->playback : &rdai->capture, SNDRV_PCM_HW_PARAM_RATE, -1); } From 0e289012b47a2de1f029a6b61c75998e2f159dd9 Mon Sep 17 00:00:00 2001 From: Jiada Wang Date: Mon, 3 Sep 2018 07:07:07 +0000 Subject: [PATCH 0530/1762] ASoC: rsnd: ssi: Fix issue in dma data address assignment Same SSI device may be used in different dai links, by only having one dma struct in rsnd_ssi, after the first instance's dma config be initilized, the following instances can no longer configure dma, this causes issue, when their dma data address are different from the first instance. Signed-off-by: Jiada Wang Signed-off-by: Timo Wischer [Kuninori: tidyup for upstream] Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/rsnd.h | 1 + sound/soc/sh/rcar/ssi.c | 4 +--- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h index 698b08155b06..20e6a2ebebed 100644 --- a/sound/soc/sh/rcar/rsnd.h +++ b/sound/soc/sh/rcar/rsnd.h @@ -431,6 +431,7 @@ struct rsnd_dai_stream { char name[RSND_DAI_NAME_SIZE]; struct snd_pcm_substream *substream; struct rsnd_mod *mod[RSND_MOD_MAX]; + struct rsnd_mod *dma; struct rsnd_dai *rdai; struct device *dmac_dev; /* for IPMMU */ u32 parent_ssi_status; diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index 765ecc06c7c9..89cc433e2fc9 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -78,7 +78,6 @@ struct rsnd_ssi { struct rsnd_mod mod; - struct rsnd_mod *dma; u32 flags; u32 cr_own; @@ -899,7 +898,6 @@ static int rsnd_ssi_dma_probe(struct rsnd_mod *mod, struct rsnd_dai_stream *io, struct rsnd_priv *priv) { - struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); int ret; /* @@ -914,7 +912,7 @@ static int rsnd_ssi_dma_probe(struct rsnd_mod *mod, return ret; /* SSI probe might be called many times in MUX multi path */ - ret = rsnd_dma_attach(io, mod, &ssi->dma); + ret = rsnd_dma_attach(io, mod, &io->dma); return ret; } From 599da084e041b877ef89211dcbb4c7bd8380049d Mon Sep 17 00:00:00 2001 From: Jiada Wang Date: Mon, 3 Sep 2018 07:07:26 +0000 Subject: [PATCH 0531/1762] ASoC: rsnd: ssi: Check runtime channel number rather than hw_params The number of channel handled by SSI maybe differs from the one set in hw_params, currently SSI checks hw_params's channel number, and constrains to use same channel number, when it is being used by multiple clients. This patch corrects to check runtime channel number rather than channel number set in hw_params. Signed-off-by: Jiada Wang Signed-off-by: Timo Wischer [kuninori: adjust to upstreaming] Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/ssi.c | 27 +++++++-------------------- 1 file changed, 7 insertions(+), 20 deletions(-) diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index 89cc433e2fc9..3f6dd9f07bc6 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -307,6 +307,11 @@ static int rsnd_ssi_master_clk_start(struct rsnd_mod *mod, return -EINVAL; } + if (ssi->chan != chan) { + dev_err(dev, "SSI parent/child should use same chan\n"); + return -EINVAL; + } + return 0; } @@ -334,6 +339,7 @@ static int rsnd_ssi_master_clk_start(struct rsnd_mod *mod, SCKD | SWSD | CKDV(idx); ssi->wsr = CONT; ssi->rate = rate; + ssi->chan = chan; dev_dbg(dev, "%s[%d] outputs %u Hz\n", rsnd_mod_name(mod), @@ -359,6 +365,7 @@ static void rsnd_ssi_master_clk_stop(struct rsnd_mod *mod, ssi->cr_clk = 0; ssi->rate = 0; + ssi->chan = 0; rsnd_adg_ssi_clk_stop(mod); } @@ -511,9 +518,7 @@ static int rsnd_ssi_hw_params(struct rsnd_mod *mod, struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { - struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); struct rsnd_dai *rdai = rsnd_io_to_rdai(io); - int chan = params_channels(params); unsigned int fmt_width = snd_pcm_format_width(params_format(params)); if (fmt_width > rdai->chan_width) { @@ -524,24 +529,6 @@ static int rsnd_ssi_hw_params(struct rsnd_mod *mod, return -EINVAL; } - /* - * snd_pcm_ops::hw_params will be called *before* - * snd_soc_dai_ops::trigger. Thus, ssi->usrcnt is 0 - * in 1st call. - */ - if (ssi->usrcnt) { - /* - * Already working. - * It will happen if SSI has parent/child connection. - * it is error if child <-> parent SSI uses - * different channels. - */ - if (ssi->chan != chan) - return -EIO; - } - - ssi->chan = chan; - return 0; } From 5e45a6fab3b90ca300e13191fc68baaa8e37d1d4 Mon Sep 17 00:00:00 2001 From: Jiada Wang Date: Mon, 3 Sep 2018 07:07:43 +0000 Subject: [PATCH 0532/1762] ASoc: rsnd: dma: Calculate dma address with consider of BUSIF DMA address calculated by rsnd_dma_addr() only considers BUSIF0 so far. But BUSIF1 ~ BUSIF7 also maybe used, in the future. This patch updates DMA address calculations, to also consider BUSIF number used by SSI. One note is that we can't support SSI9-4/5/6/7 so far, because its address is out of calculation rule. Signed-off-by: Jiada Wang Signed-off-by: Timo Wischer [kuninori: adjust to upstreaming] Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/dma.c | 43 +++++++++++++++++++++++++--------------- sound/soc/sh/rcar/rsnd.h | 1 + sound/soc/sh/rcar/ssi.c | 5 +++++ 3 files changed, 33 insertions(+), 16 deletions(-) diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c index fe63ef8600d0..73f743ea3d08 100644 --- a/sound/soc/sh/rcar/dma.c +++ b/sound/soc/sh/rcar/dma.c @@ -487,11 +487,11 @@ static struct rsnd_mod_ops rsnd_dmapp_ops = { #define RDMA_SSI_I_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0x8) #define RDMA_SSI_O_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0xc) -#define RDMA_SSIU_I_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i)) -#define RDMA_SSIU_O_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i)) +#define RDMA_SSIU_I_N(addr, i, j) (addr ##_reg - 0x00441000 + (0x1000 * (i)) + (((j) / 4) * 0xA000) + (((j) % 4) * 0x400)) +#define RDMA_SSIU_O_N(addr, i, j) RDMA_SSIU_I_N(addr, i, j) -#define RDMA_SSIU_I_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i)) -#define RDMA_SSIU_O_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i)) +#define RDMA_SSIU_I_P(addr, i, j) (addr ##_reg - 0x00141000 + (0x1000 * (i)) + (((j) / 4) * 0xA000) + (((j) % 4) * 0x400)) +#define RDMA_SSIU_O_P(addr, i, j) RDMA_SSIU_I_P(addr, i, j) #define RDMA_SRC_I_N(addr, i) (addr ##_reg - 0x00500000 + (0x400 * i)) #define RDMA_SRC_O_N(addr, i) (addr ##_reg - 0x004fc000 + (0x400 * i)) @@ -517,6 +517,7 @@ rsnd_gen2_dma_addr(struct rsnd_dai_stream *io, !!rsnd_io_to_mod_mix(io) || !!rsnd_io_to_mod_ctu(io); int id = rsnd_mod_id(mod); + int busif = rsnd_ssi_get_busif(io); struct dma_addr { dma_addr_t out_addr; dma_addr_t in_addr; @@ -533,25 +534,35 @@ rsnd_gen2_dma_addr(struct rsnd_dai_stream *io, }, /* SSI */ /* Capture */ - {{{ RDMA_SSI_O_N(ssi, id), 0 }, - { RDMA_SSIU_O_P(ssi, id), 0 }, - { RDMA_SSIU_O_P(ssi, id), 0 } }, + {{{ RDMA_SSI_O_N(ssi, id), 0 }, + { RDMA_SSIU_O_P(ssi, id, busif), 0 }, + { RDMA_SSIU_O_P(ssi, id, busif), 0 } }, /* Playback */ - {{ 0, RDMA_SSI_I_N(ssi, id) }, - { 0, RDMA_SSIU_I_P(ssi, id) }, - { 0, RDMA_SSIU_I_P(ssi, id) } } + {{ 0, RDMA_SSI_I_N(ssi, id) }, + { 0, RDMA_SSIU_I_P(ssi, id, busif) }, + { 0, RDMA_SSIU_I_P(ssi, id, busif) } } }, /* SSIU */ /* Capture */ - {{{ RDMA_SSIU_O_N(ssi, id), 0 }, - { RDMA_SSIU_O_P(ssi, id), 0 }, - { RDMA_SSIU_O_P(ssi, id), 0 } }, + {{{ RDMA_SSIU_O_N(ssi, id, busif), 0 }, + { RDMA_SSIU_O_P(ssi, id, busif), 0 }, + { RDMA_SSIU_O_P(ssi, id, busif), 0 } }, /* Playback */ - {{ 0, RDMA_SSIU_I_N(ssi, id) }, - { 0, RDMA_SSIU_I_P(ssi, id) }, - { 0, RDMA_SSIU_I_P(ssi, id) } } }, + {{ 0, RDMA_SSIU_I_N(ssi, id, busif) }, + { 0, RDMA_SSIU_I_P(ssi, id, busif) }, + { 0, RDMA_SSIU_I_P(ssi, id, busif) } } }, }; + /* + * FIXME + * + * We can't support SSI9-4/5/6/7, because its address is + * out of calculation rule + */ + if ((id == 9) && (busif >= 4)) + dev_err(dev, "This driver doesn't support SSI%d-%d, so far", + id, busif); + /* it shouldn't happen */ if (use_cmd && !use_src) dev_err(dev, "DVC is selected without SRC\n"); diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h index 20e6a2ebebed..cb27a679dc65 100644 --- a/sound/soc/sh/rcar/rsnd.h +++ b/sound/soc/sh/rcar/rsnd.h @@ -692,6 +692,7 @@ void rsnd_ssi_remove(struct rsnd_priv *priv); struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id); int rsnd_ssi_is_dma_mode(struct rsnd_mod *mod); int rsnd_ssi_use_busif(struct rsnd_dai_stream *io); +int rsnd_ssi_get_busif(struct rsnd_dai_stream *io); u32 rsnd_ssi_multi_slaves_runtime(struct rsnd_dai_stream *io); #define RSND_SSI_HDMI_PORT0 0xf0 diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index 3f6dd9f07bc6..85da4fc82011 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -150,6 +150,11 @@ int rsnd_ssi_use_busif(struct rsnd_dai_stream *io) return use_busif; } +int rsnd_ssi_get_busif(struct rsnd_dai_stream *io) +{ + return 0; /* BUSIF0 only for now */ +} + static void rsnd_ssi_status_clear(struct rsnd_mod *mod) { rsnd_mod_write(mod, SSISR, 0); From 92c7d384ff7282738c70720f8670c9b65c90c7df Mon Sep 17 00:00:00 2001 From: Jiada Wang Date: Mon, 3 Sep 2018 07:08:00 +0000 Subject: [PATCH 0533/1762] ASoc: rsnd: dma: Calculate PDMACHCRE with consider of BUSIF PDMACHCR setting for SSI only considers BUSIF0 so far. But BUSIF1 ~ BUSIF7 also maybe used, in the future. This patch updates table gen2_id_table_ssiu, to also consider BUSIF number used by SSI. Signed-off-by: Jiada Wang Signed-off-by: Timo Wischer [kuninori: adjust to upstreaming] Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/dma.c | 37 ++++++++++++++++++++++++++----------- 1 file changed, 26 insertions(+), 11 deletions(-) diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c index 73f743ea3d08..d3b1a4ae876a 100644 --- a/sound/soc/sh/rcar/dma.c +++ b/sound/soc/sh/rcar/dma.c @@ -298,16 +298,26 @@ static struct rsnd_mod_ops rsnd_dmaen_ops = { * Audio DMAC peri peri */ static const u8 gen2_id_table_ssiu[] = { - 0x00, /* SSI00 */ - 0x04, /* SSI10 */ - 0x08, /* SSI20 */ - 0x0c, /* SSI3 */ - 0x0d, /* SSI4 */ - 0x0e, /* SSI5 */ - 0x0f, /* SSI6 */ - 0x10, /* SSI7 */ - 0x11, /* SSI8 */ - 0x12, /* SSI90 */ + /* SSI00 ~ SSI07 */ + 0x00, 0x01, 0x02, 0x03, 0x39, 0x3a, 0x3b, 0x3c, + /* SSI10 ~ SSI17 */ + 0x04, 0x05, 0x06, 0x07, 0x3d, 0x3e, 0x3f, 0x40, + /* SSI20 ~ SSI27 */ + 0x08, 0x09, 0x0a, 0x0b, 0x41, 0x42, 0x43, 0x44, + /* SSI30 ~ SSI37 */ + 0x0c, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, + /* SSI40 ~ SSI47 */ + 0x0d, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, + /* SSI5 */ + 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + /* SSI6 */ + 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + /* SSI7 */ + 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + /* SSI8 */ + 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + /* SSI90 ~ SSI97 */ + 0x12, 0x13, 0x14, 0x15, 0x53, 0x54, 0x55, 0x56, }; static const u8 gen2_id_table_scu[] = { 0x2d, /* SCU_SRCI0 */ @@ -333,18 +343,23 @@ static u32 rsnd_dmapp_get_id(struct rsnd_dai_stream *io, struct rsnd_mod *src = rsnd_io_to_mod_src(io); struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io); const u8 *entry = NULL; - int id = rsnd_mod_id(mod); + int id = 255; int size = 0; if (mod == ssi) { + int busif = rsnd_ssi_get_busif(io); + entry = gen2_id_table_ssiu; size = ARRAY_SIZE(gen2_id_table_ssiu); + id = (rsnd_mod_id(mod) * 8) + busif; } else if (mod == src) { entry = gen2_id_table_scu; size = ARRAY_SIZE(gen2_id_table_scu); + id = rsnd_mod_id(mod); } else if (mod == dvc) { entry = gen2_id_table_cmd; size = ARRAY_SIZE(gen2_id_table_cmd); + id = rsnd_mod_id(mod); } if ((!entry) || (size <= id)) { From 8c9d750333408420a1e4816b1820f10be2a84af6 Mon Sep 17 00:00:00 2001 From: Jiada Wang Date: Mon, 3 Sep 2018 07:08:20 +0000 Subject: [PATCH 0534/1762] ASoC: rsnd: ssiu: Support BUSIF other than BUSIF0 Currently only BUSIF0 is supported by SSIU, all register setting is done only for BUSIF. Since BUSIF1 ~ BUSIF7 has been supported, so also support these BUSIF from SSIU. One note is that we can't support SSI9-4/5/6/7 so far, because its address is out of calculation rule. Signed-off-by: Jiada Wang Signed-off-by: Timo Wischer [Kuninori: tidyup for upstream] Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/gen.c | 27 ++++++++++++++-- sound/soc/sh/rcar/rsnd.h | 27 ++++++++++++++-- sound/soc/sh/rcar/ssiu.c | 70 +++++++++++++++++++++++++++++++++------- 3 files changed, 107 insertions(+), 17 deletions(-) diff --git a/sound/soc/sh/rcar/gen.c b/sound/soc/sh/rcar/gen.c index 0230301fe078..3032869a7f26 100644 --- a/sound/soc/sh/rcar/gen.c +++ b/sound/soc/sh/rcar/gen.c @@ -219,9 +219,30 @@ static int rsnd_gen2_probe(struct rsnd_priv *priv) RSND_GEN_S_REG(HDMI1_SEL, 0x9e4), /* FIXME: it needs SSI_MODE2/3 in the future */ - RSND_GEN_M_REG(SSI_BUSIF_MODE, 0x0, 0x80), - RSND_GEN_M_REG(SSI_BUSIF_ADINR, 0x4, 0x80), - RSND_GEN_M_REG(SSI_BUSIF_DALIGN,0x8, 0x80), + RSND_GEN_M_REG(SSI_BUSIF0_MODE, 0x0, 0x80), + RSND_GEN_M_REG(SSI_BUSIF0_ADINR, 0x4, 0x80), + RSND_GEN_M_REG(SSI_BUSIF0_DALIGN, 0x8, 0x80), + RSND_GEN_M_REG(SSI_BUSIF1_MODE, 0x20, 0x80), + RSND_GEN_M_REG(SSI_BUSIF1_ADINR, 0x24, 0x80), + RSND_GEN_M_REG(SSI_BUSIF1_DALIGN, 0x28, 0x80), + RSND_GEN_M_REG(SSI_BUSIF2_MODE, 0x40, 0x80), + RSND_GEN_M_REG(SSI_BUSIF2_ADINR, 0x44, 0x80), + RSND_GEN_M_REG(SSI_BUSIF2_DALIGN, 0x48, 0x80), + RSND_GEN_M_REG(SSI_BUSIF3_MODE, 0x60, 0x80), + RSND_GEN_M_REG(SSI_BUSIF3_ADINR, 0x64, 0x80), + RSND_GEN_M_REG(SSI_BUSIF3_DALIGN, 0x68, 0x80), + RSND_GEN_M_REG(SSI_BUSIF4_MODE, 0x500, 0x80), + RSND_GEN_M_REG(SSI_BUSIF4_ADINR, 0x504, 0x80), + RSND_GEN_M_REG(SSI_BUSIF4_DALIGN, 0x508, 0x80), + RSND_GEN_M_REG(SSI_BUSIF5_MODE, 0x520, 0x80), + RSND_GEN_M_REG(SSI_BUSIF5_ADINR, 0x524, 0x80), + RSND_GEN_M_REG(SSI_BUSIF5_DALIGN, 0x528, 0x80), + RSND_GEN_M_REG(SSI_BUSIF6_MODE, 0x540, 0x80), + RSND_GEN_M_REG(SSI_BUSIF6_ADINR, 0x544, 0x80), + RSND_GEN_M_REG(SSI_BUSIF6_DALIGN, 0x548, 0x80), + RSND_GEN_M_REG(SSI_BUSIF7_MODE, 0x560, 0x80), + RSND_GEN_M_REG(SSI_BUSIF7_ADINR, 0x564, 0x80), + RSND_GEN_M_REG(SSI_BUSIF7_DALIGN, 0x568, 0x80), RSND_GEN_M_REG(SSI_MODE, 0xc, 0x80), RSND_GEN_M_REG(SSI_CTRL, 0x10, 0x80), RSND_GEN_M_REG(SSI_INT_ENABLE, 0x18, 0x80), diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h index cb27a679dc65..7ff58b0e8002 100644 --- a/sound/soc/sh/rcar/rsnd.h +++ b/sound/soc/sh/rcar/rsnd.h @@ -156,9 +156,30 @@ enum rsnd_reg { RSND_REG_SSI_MODE2, RSND_REG_SSI_CONTROL, RSND_REG_SSI_CTRL, - RSND_REG_SSI_BUSIF_MODE, - RSND_REG_SSI_BUSIF_ADINR, - RSND_REG_SSI_BUSIF_DALIGN, + RSND_REG_SSI_BUSIF0_MODE, + RSND_REG_SSI_BUSIF0_ADINR, + RSND_REG_SSI_BUSIF0_DALIGN, + RSND_REG_SSI_BUSIF1_MODE, + RSND_REG_SSI_BUSIF1_ADINR, + RSND_REG_SSI_BUSIF1_DALIGN, + RSND_REG_SSI_BUSIF2_MODE, + RSND_REG_SSI_BUSIF2_ADINR, + RSND_REG_SSI_BUSIF2_DALIGN, + RSND_REG_SSI_BUSIF3_MODE, + RSND_REG_SSI_BUSIF3_ADINR, + RSND_REG_SSI_BUSIF3_DALIGN, + RSND_REG_SSI_BUSIF4_MODE, + RSND_REG_SSI_BUSIF4_ADINR, + RSND_REG_SSI_BUSIF4_DALIGN, + RSND_REG_SSI_BUSIF5_MODE, + RSND_REG_SSI_BUSIF5_ADINR, + RSND_REG_SSI_BUSIF5_DALIGN, + RSND_REG_SSI_BUSIF6_MODE, + RSND_REG_SSI_BUSIF6_ADINR, + RSND_REG_SSI_BUSIF6_DALIGN, + RSND_REG_SSI_BUSIF7_MODE, + RSND_REG_SSI_BUSIF7_ADINR, + RSND_REG_SSI_BUSIF7_DALIGN, RSND_REG_SSI_INT_ENABLE, RSND_REG_SSI_SYS_STATUS0, RSND_REG_SSI_SYS_STATUS1, diff --git a/sound/soc/sh/rcar/ssiu.c b/sound/soc/sh/rcar/ssiu.c index 016fbf5ac242..a9605a0163f2 100644 --- a/sound/soc/sh/rcar/ssiu.c +++ b/sound/soc/sh/rcar/ssiu.c @@ -140,15 +140,59 @@ static int rsnd_ssiu_init_gen2(struct rsnd_mod *mod, rsnd_mod_write(mod, SSI_MODE, mode); if (rsnd_ssi_use_busif(io)) { - rsnd_mod_write(mod, SSI_BUSIF_ADINR, - rsnd_get_adinr_bit(mod, io) | - (rsnd_io_is_play(io) ? - rsnd_runtime_channel_after_ctu(io) : - rsnd_runtime_channel_original(io))); - rsnd_mod_write(mod, SSI_BUSIF_MODE, - rsnd_get_busif_shift(io, mod) | 1); - rsnd_mod_write(mod, SSI_BUSIF_DALIGN, - rsnd_get_dalign(mod, io)); + int id = rsnd_mod_id(mod); + int busif = rsnd_ssi_get_busif(io); + + /* + * FIXME + * + * We can't support SSI9-4/5/6/7, because its address is + * out of calculation rule + */ + if ((id == 9) && (busif >= 4)) { + struct device *dev = rsnd_priv_to_dev(priv); + + dev_err(dev, "This driver doesn't support SSI%d-%d, so far", + id, busif); + } + +#define RSND_WRITE_BUSIF(i) \ + rsnd_mod_write(mod, SSI_BUSIF##i##_ADINR, \ + rsnd_get_adinr_bit(mod, io) | \ + (rsnd_io_is_play(io) ? \ + rsnd_runtime_channel_after_ctu(io) : \ + rsnd_runtime_channel_original(io))); \ + rsnd_mod_write(mod, SSI_BUSIF##i##_MODE, \ + rsnd_get_busif_shift(io, mod) | 1); \ + rsnd_mod_write(mod, SSI_BUSIF##i##_DALIGN, \ + rsnd_get_dalign(mod, io)) + + switch (busif) { + case 0: + RSND_WRITE_BUSIF(0); + break; + case 1: + RSND_WRITE_BUSIF(1); + break; + case 2: + RSND_WRITE_BUSIF(2); + break; + case 3: + RSND_WRITE_BUSIF(3); + break; + case 4: + RSND_WRITE_BUSIF(4); + break; + case 5: + RSND_WRITE_BUSIF(5); + break; + case 6: + RSND_WRITE_BUSIF(6); + break; + case 7: + RSND_WRITE_BUSIF(7); + break; + } } if (hdmi) { @@ -194,10 +238,12 @@ static int rsnd_ssiu_start_gen2(struct rsnd_mod *mod, struct rsnd_dai_stream *io, struct rsnd_priv *priv) { + int busif = rsnd_ssi_get_busif(io); + if (!rsnd_ssi_use_busif(io)) return 0; - rsnd_mod_write(mod, SSI_CTRL, 0x1); + rsnd_mod_bset(mod, SSI_CTRL, 1 << (busif * 4), 1 << (busif * 4)); if (rsnd_ssi_multi_slaves_runtime(io)) rsnd_mod_write(mod, SSI_CONTROL, 0x1); @@ -209,10 +255,12 @@ static int rsnd_ssiu_stop_gen2(struct rsnd_mod *mod, struct rsnd_dai_stream *io, struct rsnd_priv *priv) { + int busif = rsnd_ssi_get_busif(io); + if (!rsnd_ssi_use_busif(io)) return 0; - rsnd_mod_write(mod, SSI_CTRL, 0); + rsnd_mod_bset(mod, SSI_CTRL, 1 << (busif * 4), 0); if (rsnd_ssi_multi_slaves_runtime(io)) rsnd_mod_write(mod, SSI_CONTROL, 0); From 2e66d523cd055ac3fa920f7e630c4bfa80d24c24 Mon Sep 17 00:00:00 2001 From: Jiada Wang Date: Mon, 3 Sep 2018 07:08:37 +0000 Subject: [PATCH 0535/1762] ASoC: rsnd: ssiu: Support to init different BUSIF instance Currently ssiu's .init is only called once during audio stream. But SSIU with different BUSIF, shall be initialized each time, even they are used in the same audio stream. This patch introduces ssiu_status for BUSIF0 to BUSIF7 in rsnd_ssiu, to make sure same .init for different BUSIF can always be executed. To avoid the first stopped stream to stop the whole SSIU, which may still has other BUSIF instance running, use usrcnt to count the usage of SSIU, only the last user of SSIU can stop the whole SSIU. Signed-off-by: Jiada Wang Signed-off-by: Timo Wischer [Kuninori: tidyup for upstream] Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/ssiu.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/sound/soc/sh/rcar/ssiu.c b/sound/soc/sh/rcar/ssiu.c index a9605a0163f2..39b67643b5dc 100644 --- a/sound/soc/sh/rcar/ssiu.c +++ b/sound/soc/sh/rcar/ssiu.c @@ -10,9 +10,12 @@ struct rsnd_ssiu { struct rsnd_mod mod; + u32 busif_status[8]; /* for BUSIF0 - BUSIF7 */ + unsigned int usrcnt; }; #define rsnd_ssiu_nr(priv) ((priv)->ssiu_nr) +#define rsnd_mod_to_ssiu(_mod) container_of((_mod), struct rsnd_ssiu, mod) #define for_each_rsnd_ssiu(pos, priv, i) \ for (i = 0; \ (i < rsnd_ssiu_nr(priv)) && \ @@ -120,6 +123,7 @@ static int rsnd_ssiu_init_gen2(struct rsnd_mod *mod, struct rsnd_dai_stream *io, struct rsnd_priv *priv) { + struct rsnd_ssiu *ssiu = rsnd_mod_to_ssiu(mod); int hdmi = rsnd_ssi_hdmi_port(io); int ret; u32 mode = 0; @@ -128,6 +132,8 @@ static int rsnd_ssiu_init_gen2(struct rsnd_mod *mod, if (ret < 0) return ret; + ssiu->usrcnt++; + if (rsnd_runtime_is_ssi_tdm(io)) { /* * TDM Extend Mode @@ -255,6 +261,7 @@ static int rsnd_ssiu_stop_gen2(struct rsnd_mod *mod, struct rsnd_dai_stream *io, struct rsnd_priv *priv) { + struct rsnd_ssiu *ssiu = rsnd_mod_to_ssiu(mod); int busif = rsnd_ssi_get_busif(io); if (!rsnd_ssi_use_busif(io)) @@ -262,6 +269,9 @@ static int rsnd_ssiu_stop_gen2(struct rsnd_mod *mod, rsnd_mod_bset(mod, SSI_CTRL, 1 << (busif * 4), 0); + if (--ssiu->usrcnt) + return 0; + if (rsnd_ssi_multi_slaves_runtime(io)) rsnd_mod_write(mod, SSI_CONTROL, 0); @@ -294,6 +304,16 @@ int rsnd_ssiu_attach(struct rsnd_dai_stream *io, return rsnd_dai_connect(mod, io, mod->type); } +static u32 *rsnd_ssiu_get_status(struct rsnd_dai_stream *io, + struct rsnd_mod *mod, + enum rsnd_mod_type type) +{ + struct rsnd_ssiu *ssiu = rsnd_mod_to_ssiu(mod); + int busif = rsnd_ssi_get_busif(io); + + return &ssiu->busif_status[busif]; +} + int rsnd_ssiu_probe(struct rsnd_priv *priv) { struct device *dev = rsnd_priv_to_dev(priv); @@ -317,7 +337,7 @@ int rsnd_ssiu_probe(struct rsnd_priv *priv) for_each_rsnd_ssiu(ssiu, priv, i) { ret = rsnd_mod_init(priv, rsnd_mod_get(ssiu), - ops, NULL, rsnd_mod_get_status, + ops, NULL, rsnd_ssiu_get_status, RSND_MOD_SSIU, i); if (ret) return ret; From 6ab6a2474e0dce02f71e92adb9778a168a8931f4 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 3 Sep 2018 07:09:17 +0000 Subject: [PATCH 0536/1762] ASoC: rsnd: merge .nolock_start and .prepare Main purpose of .nolock_start is we need to call some function without spinlock. OTOH we have .prepare which main purpose is called under atomic context. Then, it is called without spinlock. In summary, our main callback init/quit, and start/stop are called under "atomic context and with spinlock". And some function need to be called under "non-atomic context or without spinlock". Let's merge .nolock_start and prepare to be more clear code. Then, let's rename nolock_stop to cleanup Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/core.c | 13 ++----------- sound/soc/sh/rcar/dma.c | 20 ++++++++++---------- sound/soc/sh/rcar/rsnd.h | 26 ++++++++++---------------- 3 files changed, 22 insertions(+), 37 deletions(-) diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index 299fb457573d..e46415c807a0 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -881,12 +881,10 @@ static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); - struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); struct snd_pcm_hw_constraint_list *constraint = &rdai->constraint; struct snd_pcm_runtime *runtime = substream->runtime; unsigned int max_channels = rsnd_rdai_channels_get(rdai); - int ret; int i; rsnd_dai_stream_init(io, substream); @@ -930,14 +928,7 @@ static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream, SNDRV_PCM_HW_PARAM_RATE, -1); } - /* - * call rsnd_dai_call without spinlock - */ - ret = rsnd_dai_call(nolock_start, io, priv); - if (ret < 0) - rsnd_dai_call(nolock_stop, io, priv); - - return ret; + return 0; } static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream, @@ -950,7 +941,7 @@ static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream, /* * call rsnd_dai_call without spinlock */ - rsnd_dai_call(nolock_stop, io, priv); + rsnd_dai_call(cleanup, io, priv); rsnd_dai_stream_quit(io); } diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c index d3b1a4ae876a..f99c1ab3b0bd 100644 --- a/sound/soc/sh/rcar/dma.c +++ b/sound/soc/sh/rcar/dma.c @@ -106,9 +106,9 @@ static int rsnd_dmaen_stop(struct rsnd_mod *mod, return 0; } -static int rsnd_dmaen_nolock_stop(struct rsnd_mod *mod, - struct rsnd_dai_stream *io, - struct rsnd_priv *priv) +static int rsnd_dmaen_cleanup(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) { struct rsnd_dma *dma = rsnd_mod_to_dma(mod); struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma); @@ -116,7 +116,7 @@ static int rsnd_dmaen_nolock_stop(struct rsnd_mod *mod, /* * DMAEngine release uses mutex lock. * Thus, it shouldn't be called under spinlock. - * Let's call it under nolock_start + * Let's call it under prepare */ if (dmaen->chan) dma_release_channel(dmaen->chan); @@ -126,9 +126,9 @@ static int rsnd_dmaen_nolock_stop(struct rsnd_mod *mod, return 0; } -static int rsnd_dmaen_nolock_start(struct rsnd_mod *mod, - struct rsnd_dai_stream *io, - struct rsnd_priv *priv) +static int rsnd_dmaen_prepare(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) { struct rsnd_dma *dma = rsnd_mod_to_dma(mod); struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma); @@ -142,7 +142,7 @@ static int rsnd_dmaen_nolock_start(struct rsnd_mod *mod, /* * DMAEngine request uses mutex lock. * Thus, it shouldn't be called under spinlock. - * Let's call it under nolock_start + * Let's call it under prepare */ dmaen->chan = rsnd_dmaen_request_channel(io, dma->mod_from, @@ -287,8 +287,8 @@ static int rsnd_dmaen_pointer(struct rsnd_mod *mod, static struct rsnd_mod_ops rsnd_dmaen_ops = { .name = "audmac", - .nolock_start = rsnd_dmaen_nolock_start, - .nolock_stop = rsnd_dmaen_nolock_stop, + .prepare = rsnd_dmaen_prepare, + .cleanup = rsnd_dmaen_cleanup, .start = rsnd_dmaen_start, .stop = rsnd_dmaen_stop, .pointer= rsnd_dmaen_pointer, diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h index 7a04b19e405c..e857311ee5c1 100644 --- a/sound/soc/sh/rcar/rsnd.h +++ b/sound/soc/sh/rcar/rsnd.h @@ -295,15 +295,12 @@ struct rsnd_mod_ops { int (*fallback)(struct rsnd_mod *mod, struct rsnd_dai_stream *io, struct rsnd_priv *priv); - int (*nolock_start)(struct rsnd_mod *mod, - struct rsnd_dai_stream *io, - struct rsnd_priv *priv); - int (*nolock_stop)(struct rsnd_mod *mod, - struct rsnd_dai_stream *io, - struct rsnd_priv *priv); int (*prepare)(struct rsnd_mod *mod, struct rsnd_dai_stream *io, struct rsnd_priv *priv); + int (*cleanup)(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv); }; struct rsnd_dai_stream; @@ -323,7 +320,7 @@ struct rsnd_mod { * * 0xH0000CBA * - * A 0: nolock_start 1: nolock_stop + * A 0: prepare 1: cleanup * B 0: init 1: quit * C 0: start 1: stop * @@ -335,8 +332,8 @@ struct rsnd_mod { * H 0: pointer * H 0: prepare */ -#define __rsnd_mod_shift_nolock_start 0 -#define __rsnd_mod_shift_nolock_stop 0 +#define __rsnd_mod_shift_prepare 0 +#define __rsnd_mod_shift_cleanup 0 #define __rsnd_mod_shift_init 4 #define __rsnd_mod_shift_quit 4 #define __rsnd_mod_shift_start 8 @@ -348,12 +345,11 @@ struct rsnd_mod { #define __rsnd_mod_shift_fallback 28 /* always called */ #define __rsnd_mod_shift_hw_params 28 /* always called */ #define __rsnd_mod_shift_pointer 28 /* always called */ -#define __rsnd_mod_shift_prepare 28 /* always called */ #define __rsnd_mod_add_probe 0 #define __rsnd_mod_add_remove 0 -#define __rsnd_mod_add_nolock_start 1 -#define __rsnd_mod_add_nolock_stop -1 +#define __rsnd_mod_add_prepare 1 +#define __rsnd_mod_add_cleanup -1 #define __rsnd_mod_add_init 1 #define __rsnd_mod_add_quit -1 #define __rsnd_mod_add_start 1 @@ -363,10 +359,11 @@ struct rsnd_mod { #define __rsnd_mod_add_fallback 0 #define __rsnd_mod_add_hw_params 0 #define __rsnd_mod_add_pointer 0 -#define __rsnd_mod_add_prepare 0 #define __rsnd_mod_call_probe 0 #define __rsnd_mod_call_remove 0 +#define __rsnd_mod_call_prepare 0 +#define __rsnd_mod_call_cleanup 1 #define __rsnd_mod_call_init 0 #define __rsnd_mod_call_quit 1 #define __rsnd_mod_call_start 0 @@ -376,9 +373,6 @@ struct rsnd_mod { #define __rsnd_mod_call_fallback 0 #define __rsnd_mod_call_hw_params 0 #define __rsnd_mod_call_pointer 0 -#define __rsnd_mod_call_nolock_start 0 -#define __rsnd_mod_call_nolock_stop 1 -#define __rsnd_mod_call_prepare 0 #define rsnd_mod_to_priv(mod) ((mod)->priv) #define rsnd_mod_name(mod) ((mod)->ops->name) From a45f8853a5f95e3760dfbd7ba09d3d597d247040 Mon Sep 17 00:00:00 2001 From: Codrin Ciubotariu Date: Fri, 31 Aug 2018 20:14:35 +0300 Subject: [PATCH 0537/1762] ASoC: Add driver for PROTO Audio CODEC (with a WM8731) Add support for the MikroElektronika PROTO audio codec board. URL to the audio chip: http://www.mikroe.com/add-on-boards/audio-voice/audio-codec-proto/ Signed-off-by: Florian Meier Signed-off-by: Codrin Ciubotariu Signed-off-by: Mark Brown --- sound/soc/atmel/Kconfig | 11 +++ sound/soc/atmel/Makefile | 2 + sound/soc/atmel/mikroe-proto.c | 165 +++++++++++++++++++++++++++++++++ 3 files changed, 178 insertions(+) create mode 100644 sound/soc/atmel/mikroe-proto.c diff --git a/sound/soc/atmel/Kconfig b/sound/soc/atmel/Kconfig index 64b784e96f84..81a0712d4f14 100644 --- a/sound/soc/atmel/Kconfig +++ b/sound/soc/atmel/Kconfig @@ -97,4 +97,15 @@ config SND_ATMEL_SOC_I2S help Say Y or M if you want to add support for Atmel ASoc driver for boards using I2S. + +config SND_SOC_MIKROE_PROTO + tristate "Support for Mikroe-PROTO board" + depends on OF + select SND_SOC_WM8731 + help + Say Y or M if you want to add support for MikroElektronika PROTO Audio + Board. This board contains the WM8731 codec, which can be configured + using I2C over SDA (MPU Data Input) and SCL (MPU Clock Input) pins. + Both playback and capture are supported. + endif diff --git a/sound/soc/atmel/Makefile b/sound/soc/atmel/Makefile index cd87cb4bcff5..9f41bfa0fea3 100644 --- a/sound/soc/atmel/Makefile +++ b/sound/soc/atmel/Makefile @@ -17,6 +17,7 @@ snd-soc-sam9x5-wm8731-objs := sam9x5_wm8731.o snd-atmel-soc-classd-objs := atmel-classd.o snd-atmel-soc-pdmic-objs := atmel-pdmic.o snd-atmel-soc-tse850-pcm5142-objs := tse850-pcm5142.o +snd-soc-mikroe-proto-objs := mikroe-proto.o obj-$(CONFIG_SND_AT91_SOC_SAM9G20_WM8731) += snd-soc-sam9g20-wm8731.o obj-$(CONFIG_SND_ATMEL_SOC_WM8904) += snd-atmel-soc-wm8904.o @@ -24,3 +25,4 @@ obj-$(CONFIG_SND_AT91_SOC_SAM9X5_WM8731) += snd-soc-sam9x5-wm8731.o obj-$(CONFIG_SND_ATMEL_SOC_CLASSD) += snd-atmel-soc-classd.o obj-$(CONFIG_SND_ATMEL_SOC_PDMIC) += snd-atmel-soc-pdmic.o obj-$(CONFIG_SND_ATMEL_SOC_TSE850_PCM5142) += snd-atmel-soc-tse850-pcm5142.o +obj-$(CONFIG_SND_SOC_MIKROE_PROTO) += snd-soc-mikroe-proto.o diff --git a/sound/soc/atmel/mikroe-proto.c b/sound/soc/atmel/mikroe-proto.c new file mode 100644 index 000000000000..d47aaa5bf75a --- /dev/null +++ b/sound/soc/atmel/mikroe-proto.c @@ -0,0 +1,165 @@ +/* + * ASoC driver for PROTO AudioCODEC (with a WM8731) + * + * Author: Florian Meier, + * Copyright 2013 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include + +#include +#include +#include +#include + +#include "../codecs/wm8731.h" + +#define XTAL_RATE 12288000 /* This is fixed on this board */ + +static int snd_proto_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_card *card = rtd->card; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + + /* Set proto sysclk */ + int ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL, + XTAL_RATE, SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(card->dev, "Failed to set WM8731 SYSCLK: %d\n", + ret); + return ret; + } + + return 0; +} + +static const struct snd_soc_dapm_widget snd_proto_widget[] = { + SND_SOC_DAPM_MIC("Microphone Jack", NULL), + SND_SOC_DAPM_HP("Headphone Jack", NULL), +}; + +static const struct snd_soc_dapm_route snd_proto_route[] = { + /* speaker connected to LHPOUT/RHPOUT */ + {"Headphone Jack", NULL, "LHPOUT"}, + {"Headphone Jack", NULL, "RHPOUT"}, + + /* mic is connected to Mic Jack, with WM8731 Mic Bias */ + {"MICIN", NULL, "Mic Bias"}, + {"Mic Bias", NULL, "Microphone Jack"}, +}; + +/* audio machine driver */ +static struct snd_soc_card snd_proto = { + .name = "snd_mikroe_proto", + .owner = THIS_MODULE, + .dapm_widgets = snd_proto_widget, + .num_dapm_widgets = ARRAY_SIZE(snd_proto_widget), + .dapm_routes = snd_proto_route, + .num_dapm_routes = ARRAY_SIZE(snd_proto_route), +}; + +static int snd_proto_probe(struct platform_device *pdev) +{ + struct snd_soc_dai_link *dai; + struct device_node *np = pdev->dev.of_node; + struct device_node *codec_np, *cpu_np; + struct device_node *bitclkmaster = NULL; + struct device_node *framemaster = NULL; + unsigned int dai_fmt; + int ret = 0; + + if (!np) { + dev_err(&pdev->dev, "No device node supplied\n"); + return -EINVAL; + } + + snd_proto.dev = &pdev->dev; + ret = snd_soc_of_parse_card_name(&snd_proto, "model"); + if (ret) + return ret; + + dai = devm_kzalloc(&pdev->dev, sizeof(*dai), GFP_KERNEL); + if (!dai) + return -ENOMEM; + + snd_proto.dai_link = dai; + snd_proto.num_links = 1; + + dai->name = "WM8731"; + dai->stream_name = "WM8731 HiFi"; + dai->codec_dai_name = "wm8731-hifi"; + dai->init = &snd_proto_init; + + codec_np = of_parse_phandle(np, "audio-codec", 0); + if (!codec_np) { + dev_err(&pdev->dev, "audio-codec node missing\n"); + return -EINVAL; + } + dai->codec_of_node = codec_np; + + cpu_np = of_parse_phandle(np, "i2s-controller", 0); + if (!cpu_np) { + dev_err(&pdev->dev, "i2s-controller missing\n"); + return -EINVAL; + } + dai->cpu_of_node = cpu_np; + dai->platform_of_node = cpu_np; + + dai_fmt = snd_soc_of_parse_daifmt(np, NULL, + &bitclkmaster, &framemaster); + if (bitclkmaster != framemaster) { + dev_err(&pdev->dev, "Must be the same bitclock and frame master\n"); + return -EINVAL; + } + if (bitclkmaster) { + dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK; + if (codec_np == bitclkmaster) + dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; + else + dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; + } + of_node_put(bitclkmaster); + of_node_put(framemaster); + dai->dai_fmt = dai_fmt; + + of_node_put(codec_np); + of_node_put(cpu_np); + + ret = snd_soc_register_card(&snd_proto); + if (ret && ret != -EPROBE_DEFER) + dev_err(&pdev->dev, + "snd_soc_register_card() failed: %d\n", ret); + + return ret; +} + +static int snd_proto_remove(struct platform_device *pdev) +{ + return snd_soc_unregister_card(&snd_proto); +} + +static const struct of_device_id snd_proto_of_match[] = { + { .compatible = "mikroe,mikroe-proto", }, + {}, +}; +MODULE_DEVICE_TABLE(of, snd_proto_of_match); + +static struct platform_driver snd_proto_driver = { + .driver = { + .name = "snd-mikroe-proto", + .of_match_table = snd_proto_of_match, + }, + .probe = snd_proto_probe, + .remove = snd_proto_remove, +}; + +module_platform_driver(snd_proto_driver); + +MODULE_AUTHOR("Florian Meier"); +MODULE_DESCRIPTION("ASoC Driver for PROTO board (WM8731)"); +MODULE_LICENSE("GPL"); From 85e16fdd2f25ef6b08b4275acd5f60fdccfe0973 Mon Sep 17 00:00:00 2001 From: Codrin Ciubotariu Date: Fri, 31 Aug 2018 20:14:36 +0300 Subject: [PATCH 0538/1762] ASoC: mikroe-proto: dt-bindings: add DT bindings for PROTO board DT binding documentation for this new ASoC driver. Signed-off-by: Codrin Ciubotariu Signed-off-by: Mark Brown --- .../bindings/sound/mikroe,mikroe-proto.txt | 23 +++++++++++++++++++ .../devicetree/bindings/vendor-prefixes.txt | 1 + 2 files changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/mikroe,mikroe-proto.txt diff --git a/Documentation/devicetree/bindings/sound/mikroe,mikroe-proto.txt b/Documentation/devicetree/bindings/sound/mikroe,mikroe-proto.txt new file mode 100644 index 000000000000..912f8fae11c5 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/mikroe,mikroe-proto.txt @@ -0,0 +1,23 @@ +Mikroe-PROTO audio board + +Required properties: + - compatible: "mikroe,mikroe-proto" + - dai-format: Must be "i2s". + - i2s-controller: The phandle of the I2S controller. + - audio-codec: The phandle of the WM8731 audio codec. +Optional properties: + - model: The user-visible name of this sound complex. + - bitclock-master: Indicates dai-link bit clock master; for details see simple-card.txt (1). + - frame-master: Indicates dai-link frame master; for details see simple-card.txt (1). + +(1) : There must be the same master for both bit and frame clocks. + +Example: + sound { + compatible = "mikroe,mikroe-proto"; + model = "wm8731 @ sama5d2_xplained"; + i2s-controller = <&i2s0>; + audio-codec = <&wm8731>; + dai-format = "i2s"; + }; +}; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 2c3fc512e746..f26bf667e530 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -235,6 +235,7 @@ micrel Micrel Inc. microchip Microchip Technology Inc. microcrystal Micro Crystal AG micron Micron Technology Inc. +mikroe MikroElektronika d.o.o. minix MINIX Technology Ltd. miramems MiraMEMS Sensing Technology Co., Ltd. mitsubishi Mitsubishi Electric Corporation From e03546ddd3db5352a74dec247dbdaa29889e93f7 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Fri, 17 Aug 2018 16:35:43 +0100 Subject: [PATCH 0539/1762] ASoC: core: Don't schedule DAPM work if already in target state When dapm_power_widgets() is called, the dapm_pre_sequence_async() and dapm_post_sequence_async() functions are scheduled for all DAPM contexts (apart from the card DAPM context) regardless of whether the DAPM context is already in the desired state. The overhead of this is not insignificant and the more DAPM contexts there are the more overhead there is. For example, on the Tegra124 Jetson TK1, when profiling the time taken to execute the dapm_power_widgets() the following times were observed. Times for function dapm_power_widgets() are (us): Min 23, Ave 190, Max 434, Count 39 Here 'Count' is the number of times that dapm_power_widgets() has been called. Please note that the above time were measured using ktime_get() to log the time on entry and exit from dapm_power_widgets(). So it should be noted that these times may not be purely the time take to execute this function if it is preempted. However, after applying this patch and measuring the time taken to execute dapm_power_widgets() again a significant improvement is seen as shown below. Times for function dapm_power_widgets() are (us): Min 4, Ave 16, Max 82, Count 39 Therefore, optimise the dapm_power_widgets() function by only scheduling the dapm_pre/post_sequence_async() work if the DAPM context is not in the desired state. Signed-off-by: Jon Hunter Reviewed-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index d7be3981f026..9feccd2e7c11 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -1952,7 +1952,7 @@ static int dapm_power_widgets(struct snd_soc_card *card, int event) dapm_pre_sequence_async(&card->dapm, 0); /* Run other bias changes in parallel */ list_for_each_entry(d, &card->dapm_list, list) { - if (d != &card->dapm) + if (d != &card->dapm && d->bias_level != d->target_bias_level) async_schedule_domain(dapm_pre_sequence_async, d, &async_domain); } @@ -1976,7 +1976,7 @@ static int dapm_power_widgets(struct snd_soc_card *card, int event) /* Run all the bias changes in parallel */ list_for_each_entry(d, &card->dapm_list, list) { - if (d != &card->dapm) + if (d != &card->dapm && d->bias_level != d->target_bias_level) async_schedule_domain(dapm_post_sequence_async, d, &async_domain); } From 3edd79cf5a44b12dbb13bc320f5788aed6562b36 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Mon, 3 Sep 2018 16:49:37 +0200 Subject: [PATCH 0540/1762] regulator: Fix 'do-nothing' value for regulators without suspend state Some regulators don't have all states defined and in such cases regulator core should not assume anything. However in current implementation of of_get_regulation_constraints() DO_NOTHING_IN_SUSPEND enable value was set only for regulators which had suspend node defined, otherwise the default 0 value was used, what means DISABLE_IN_SUSPEND. This lead to broken system suspend/resume on boards, which had simple regulator constraints definition (without suspend state nodes). To avoid further mismatches between the default and uninitialized values of the suspend enabled/disabled states, change the values of the them, so default '0' means DO_NOTHING_IN_SUSPEND. Fixes: 72069f9957a1: regulator: leave one item to record whether regulator is enabled Signed-off-by: Marek Szyprowski Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/regulator/core.c | 2 +- drivers/regulator/of_regulator.c | 2 -- include/linux/regulator/machine.h | 6 +++--- 3 files changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index bb1324f93143..90215f57270f 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -3161,7 +3161,7 @@ static inline int regulator_suspend_toggle(struct regulator_dev *rdev, if (!rstate->changeable) return -EPERM; - rstate->enabled = en; + rstate->enabled = (en) ? ENABLE_IN_SUSPEND : DISABLE_IN_SUSPEND; return 0; } diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index 638f17d4c848..210fc20f7de7 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -213,8 +213,6 @@ static void of_get_regulation_constraints(struct device_node *np, else if (of_property_read_bool(suspend_np, "regulator-off-in-suspend")) suspend_state->enabled = DISABLE_IN_SUSPEND; - else - suspend_state->enabled = DO_NOTHING_IN_SUSPEND; if (!of_property_read_u32(np, "regulator-suspend-min-microvolt", &pval)) diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h index 3468703d663a..a459a5e973a7 100644 --- a/include/linux/regulator/machine.h +++ b/include/linux/regulator/machine.h @@ -48,9 +48,9 @@ struct regulator; * DISABLE_IN_SUSPEND - turn off regulator in suspend states * ENABLE_IN_SUSPEND - keep regulator on in suspend states */ -#define DO_NOTHING_IN_SUSPEND (-1) -#define DISABLE_IN_SUSPEND 0 -#define ENABLE_IN_SUSPEND 1 +#define DO_NOTHING_IN_SUSPEND 0 +#define DISABLE_IN_SUSPEND 1 +#define ENABLE_IN_SUSPEND 2 /* Regulator active discharge flags */ enum regulator_active_discharge { From edf4e7b7b9104b58fddfcd073bd7dcc1585d5326 Mon Sep 17 00:00:00 2001 From: John Johansen Date: Sat, 1 Sep 2018 01:57:52 -0700 Subject: [PATCH 0541/1762] apparmor: fix bad debug check in apparmor_secid_to_secctx() apparmor_secid_to_secctx() has a bad debug statement tripping on a condition handle by the code. When kconfig SECURITY_APPARMOR_DEBUG is enabled the debug WARN_ON will trip when **secdata is NULL resulting in the following trace. ------------[ cut here ]------------ AppArmor WARN apparmor_secid_to_secctx: ((!secdata)): WARNING: CPU: 0 PID: 14826 at security/apparmor/secid.c:82 apparmor_secid_to_secctx+0x2b5/0x2f0 security/apparmor/secid.c:82 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 14826 Comm: syz-executor1 Not tainted 4.19.0-rc1+ #193 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 panic+0x238/0x4e7 kernel/panic.c:184 __warn.cold.8+0x163/0x1ba kernel/panic.c:536 report_bug+0x252/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:993 RIP: 0010:apparmor_secid_to_secctx+0x2b5/0x2f0 security/apparmor/secid.c:82 Code: c7 c7 40 66 58 87 e8 6a 6d 0f fe 0f 0b e9 6c fe ff ff e8 3e aa 44 fe 48 c7 c6 80 67 58 87 48 c7 c7 a0 65 58 87 e8 4b 6d 0f fe <0f> 0b e9 3f fe ff ff 48 89 df e8 fc a7 83 fe e9 ed fe ff ff bb f4 RSP: 0018:ffff8801ba1bed10 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff8801ba1beed0 RCX: ffffc9000227e000 RDX: 0000000000018482 RSI: ffffffff8163ac01 RDI: 0000000000000001 RBP: ffff8801ba1bed30 R08: ffff8801b80ec080 R09: ffffed003b603eca R10: ffffed003b603eca R11: ffff8801db01f657 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801ba1beed0 security_secid_to_secctx+0x63/0xc0 security/security.c:1314 ctnetlink_secctx_size net/netfilter/nf_conntrack_netlink.c:621 [inline] ctnetlink_nlmsg_size net/netfilter/nf_conntrack_netlink.c:659 [inline] ctnetlink_conntrack_event+0x303/0x1470 net/netfilter/nf_conntrack_netlink.c:706 nf_conntrack_eventmask_report+0x55f/0x930 net/netfilter/nf_conntrack_ecache.c:151 nf_conntrack_event_report include/net/netfilter/nf_conntrack_ecache.h:112 [inline] nf_ct_delete+0x33c/0x5d0 net/netfilter/nf_conntrack_core.c:601 nf_ct_iterate_cleanup+0x48c/0x5e0 net/netfilter/nf_conntrack_core.c:1892 nf_ct_iterate_cleanup_net+0x23c/0x2d0 net/netfilter/nf_conntrack_core.c:1974 ctnetlink_flush_conntrack net/netfilter/nf_conntrack_netlink.c:1226 [inline] ctnetlink_del_conntrack+0x66c/0x850 net/netfilter/nf_conntrack_netlink.c:1258 nfnetlink_rcv_msg+0xd88/0x1070 net/netfilter/nfnetlink.c:228 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454 nfnetlink_rcv+0x1c0/0x4d0 net/netfilter/nfnetlink.c:560 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x5a0/0x760 net/netlink/af_netlink.c:1343 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2114 __sys_sendmsg+0x11d/0x290 net/socket.c:2152 __do_sys_sendmsg net/socket.c:2161 [inline] __se_sys_sendmsg net/socket.c:2159 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2159 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457089 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7bc6e03c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f7bc6e046d4 RCX: 0000000000457089 RDX: 0000000000000000 RSI: 0000000020d65000 RDI: 0000000000000003 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d4588 R14: 00000000004c8d5c R15: 0000000000000000 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds.. CC: #4.18 Fixes: c092921219d2 ("apparmor: add support for mapping secids and using secctxes") Reported-by: syzbot+21016130b0580a9de3b5@syzkaller.appspotmail.com Signed-off-by: John Johansen --- security/apparmor/secid.c | 1 - 1 file changed, 1 deletion(-) diff --git a/security/apparmor/secid.c b/security/apparmor/secid.c index f2f22d00db18..4ccec1bcf6f5 100644 --- a/security/apparmor/secid.c +++ b/security/apparmor/secid.c @@ -79,7 +79,6 @@ int apparmor_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) struct aa_label *label = aa_secid_to_label(secid); int len; - AA_BUG(!secdata); AA_BUG(!seclen); if (!label) From 36feaac35405e932ad9c321d7a2db8a7e4a4d7ca Mon Sep 17 00:00:00 2001 From: Hangbin Liu Date: Fri, 31 Aug 2018 16:52:01 +0800 Subject: [PATCH 0542/1762] ip6_tunnel: respect ttl inherit for ip6tnl man ip-tunnel ttl section says: 0 is a special value meaning that packets inherit the TTL value. IPv4 tunnel respect this in ip_tunnel_xmit(), but IPv6 tunnel has not implement it yet. To make IPv6 behave consistently with IP tunnel, add ipv6 tunnel inherit support. Signed-off-by: Hangbin Liu Signed-off-by: David S. Miller --- net/ipv6/ip6_tunnel.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 5df2a58d945c..419960b0ba16 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -1188,7 +1188,15 @@ route_lookup: init_tel_txopt(&opt, encap_limit); ipv6_push_frag_opts(skb, &opt.ops, &proto); } - hop_limit = hop_limit ? : ip6_dst_hoplimit(dst); + + if (hop_limit == 0) { + if (skb->protocol == htons(ETH_P_IP)) + hop_limit = ip_hdr(skb)->ttl; + else if (skb->protocol == htons(ETH_P_IPV6)) + hop_limit = ipv6_hdr(skb)->hop_limit; + else + hop_limit = ip6_dst_hoplimit(dst); + } /* Calculate max headroom for all the headers and adjust * needed_headroom if necessary. From 9fd0e09a4e86499639653243edfcb417a05c5c46 Mon Sep 17 00:00:00 2001 From: Anthony Wong Date: Fri, 31 Aug 2018 20:06:42 +0800 Subject: [PATCH 0543/1762] r8169: add support for NCube 8168 network card This card identifies itself as: Ethernet controller [0200]: NCube Device [10ff:8168] (rev 06) Subsystem: TP-LINK Technologies Co., Ltd. Device [7470:3468] Adding a new entry to rtl8169_pci_tbl makes the card work. Link: http://launchpad.net/bugs/1788730 Signed-off-by: Anthony Wong Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 1 + include/linux/pci_ids.h | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index ac306797590e..b08d51bf7a20 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -218,6 +218,7 @@ static const struct pci_device_id rtl8169_pci_tbl[] = { { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8161), 0, 0, RTL_CFG_1 }, { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 }, { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 }, + { PCI_DEVICE(PCI_VENDOR_ID_NCUBE, 0x8168), 0, 0, RTL_CFG_1 }, { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 }, { PCI_VENDOR_ID_DLINK, 0x4300, PCI_VENDOR_ID_DLINK, 0x4b10, 0, 0, RTL_CFG_1 }, diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 99d366cb0e9f..d157983b84cf 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -3084,4 +3084,6 @@ #define PCI_VENDOR_ID_OCZ 0x1b85 +#define PCI_VENDOR_ID_NCUBE 0x10ff + #endif /* _LINUX_PCI_IDS_H */ From f0a459dec5495a3580f8d784555e6f8f3bf7f263 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 3 Sep 2018 22:19:43 -0400 Subject: [PATCH 0544/1762] ext4: fix online resize's handling of a too-small final block group Avoid growing the file system to an extent so that the last block group is too small to hold all of the metadata that must be stored in the block group. This problem can be triggered with the following reproducer: umount /mnt mke2fs -F -m0 -b 4096 -t ext4 -O resize_inode,^has_journal \ -E resize=1073741824 /tmp/foo.img 128M mount /tmp/foo.img /mnt truncate --size 1708M /tmp/foo.img resize2fs /dev/loop0 295400 umount /mnt e2fsck -fy /tmp/foo.img Reported-by: Torsten Hilbrich Signed-off-by: Theodore Ts'o Cc: stable@vger.kernel.org --- fs/ext4/resize.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index e5fb38451a73..33655a6eff4d 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -1986,6 +1986,26 @@ retry: } } + /* + * Make sure the last group has enough space so that it's + * guaranteed to have enough space for all metadata blocks + * that it might need to hold. (We might not need to store + * the inode table blocks in the last block group, but there + * will be cases where this might be needed.) + */ + if ((ext4_group_first_block_no(sb, n_group) + + ext4_group_overhead_blocks(sb, n_group) + 2 + + sbi->s_itb_per_group + sbi->s_cluster_ratio) >= n_blocks_count) { + n_blocks_count = ext4_group_first_block_no(sb, n_group); + n_group--; + n_blocks_count_retry = 0; + if (resize_inode) { + iput(resize_inode); + resize_inode = NULL; + } + goto retry; + } + /* extend the last group */ if (n_group == o_group) add = n_blocks_count - o_blocks_count; From 5f8c10936fab2b69a487400f2872902e597dd320 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 3 Sep 2018 22:25:01 -0400 Subject: [PATCH 0545/1762] ext4: fix online resizing for bigalloc file systems with a 1k block size An online resize of a file system with the bigalloc feature enabled and a 1k block size would be refused since ext4_resize_begin() did not understand s_first_data_block is 0 for all bigalloc file systems, even when the block size is 1k. Signed-off-by: Theodore Ts'o Cc: stable@vger.kernel.org --- fs/ext4/resize.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 33655a6eff4d..ebbc663d0798 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -19,6 +19,7 @@ int ext4_resize_begin(struct super_block *sb) { + struct ext4_sb_info *sbi = EXT4_SB(sb); int ret = 0; if (!capable(CAP_SYS_RESOURCE)) @@ -29,7 +30,7 @@ int ext4_resize_begin(struct super_block *sb) * because the user tools have no way of handling this. Probably a * bad time to do it anyways. */ - if (EXT4_SB(sb)->s_sbh->b_blocknr != + if (EXT4_B2C(sbi, sbi->s_sbh->b_blocknr) != le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) { ext4_warning(sb, "won't resize using backup superblock at %llu", (unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr); From c48300c92ad9f029f4dcbcf5d71ad880e3acf2fa Mon Sep 17 00:00:00 2001 From: Gleb Fotengauer-Malinovskiy Date: Mon, 3 Sep 2018 20:59:13 +0300 Subject: [PATCH 0546/1762] vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition The _IOC_READ flag fits this ioctl request more because this request actually only writes to, but doesn't read from userspace. See NOTEs in include/uapi/asm-generic/ioctl.h for more information. Fixes: 429711aec282 ("vhost: switch to use new message format") Signed-off-by: Gleb Fotengauer-Malinovskiy Acked-by: Jason Wang Acked-by: Michael S. Tsirkin Signed-off-by: David S. Miller --- include/uapi/linux/vhost.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h index b1e22c40c4b6..84c3de89696a 100644 --- a/include/uapi/linux/vhost.h +++ b/include/uapi/linux/vhost.h @@ -176,7 +176,7 @@ struct vhost_memory { #define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1 #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) -#define VHOST_GET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x26, __u64) +#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) /* VHOST_NET specific defines */ From 399334708b4f07b107094e5db4a390f0f25d2d4f Mon Sep 17 00:00:00 2001 From: Jan-Marek Glogowski Date: Sat, 25 Aug 2018 15:10:35 -0400 Subject: [PATCH 0547/1762] drm/i915: Re-apply "Perform link quality check, unconditionally during long pulse" This re-applies the workaround for "some DP sinks, [which] are a little nuts" from commit 1a36147bb939 ("drm/i915: Perform link quality check unconditionally during long pulse"). It makes the secondary AOC E2460P monitor connected via DP to an acer Veriton N4640G usable again. This hunk was dropped in commit c85d200e8321 ("drm/i915: Move SST DP link retraining into the ->post_hotplug() hook") Fixes: c85d200e8321 ("drm/i915: Move SST DP link retraining into the ->post_hotplug() hook") [Cleaned up commit message, added stable cc] Signed-off-by: Lyude Paul Signed-off-by: Jan-Marek Glogowski Cc: stable@vger.kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20180825191035.3945-1-lyude@redhat.com (cherry picked from commit 3cf71bc9904d7ee4a25a822c5dcb54c7804ea388) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/intel_dp.c | 33 +++++++++++++++++++-------------- 1 file changed, 19 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index cd0f649b57a5..1193202766a2 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4160,18 +4160,6 @@ intel_dp_needs_link_retrain(struct intel_dp *intel_dp) return !drm_dp_channel_eq_ok(link_status, intel_dp->lane_count); } -/* - * If display is now connected check links status, - * there has been known issues of link loss triggering - * long pulse. - * - * Some sinks (eg. ASUS PB287Q) seem to perform some - * weird HPD ping pong during modesets. So we can apparently - * end up with HPD going low during a modeset, and then - * going back up soon after. And once that happens we must - * retrain the link to get a picture. That's in case no - * userspace component reacted to intermittent HPD dip. - */ int intel_dp_retrain_link(struct intel_encoder *encoder, struct drm_modeset_acquire_ctx *ctx) { @@ -4661,7 +4649,8 @@ intel_dp_unset_edid(struct intel_dp *intel_dp) } static int -intel_dp_long_pulse(struct intel_connector *connector) +intel_dp_long_pulse(struct intel_connector *connector, + struct drm_modeset_acquire_ctx *ctx) { struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct intel_dp *intel_dp = intel_attached_dp(&connector->base); @@ -4720,6 +4709,22 @@ intel_dp_long_pulse(struct intel_connector *connector) */ status = connector_status_disconnected; goto out; + } else { + /* + * If display is now connected check links status, + * there has been known issues of link loss triggering + * long pulse. + * + * Some sinks (eg. ASUS PB287Q) seem to perform some + * weird HPD ping pong during modesets. So we can apparently + * end up with HPD going low during a modeset, and then + * going back up soon after. And once that happens we must + * retrain the link to get a picture. That's in case no + * userspace component reacted to intermittent HPD dip. + */ + struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base; + + intel_dp_retrain_link(encoder, ctx); } /* @@ -4781,7 +4786,7 @@ intel_dp_detect(struct drm_connector *connector, return ret; } - status = intel_dp_long_pulse(intel_dp->attached_connector); + status = intel_dp_long_pulse(intel_dp->attached_connector, ctx); } intel_dp->detect_done = false; From 4fe967912ee83048beb45a6b4f0f6774fddcfa0a Mon Sep 17 00:00:00 2001 From: Manasi Navare Date: Thu, 23 Aug 2018 18:48:07 -0700 Subject: [PATCH 0548/1762] drm/i915/dsc: Fix PPS register definition macros for 2nd VDSC engine This patch fixes the PPS4 and PPS5 register definition macros that were resulting into an incorect MMIO address. Fixes: 2efbb2f099fb ("i915/dp/dsc: Add DSC PPS register definitions") Cc: Anusha Srivatsa Signed-off-by: Manasi Navare Reviewed-by: Rodrigo Vivi Reviewed-by: Anusha Srivatsa Link: https://patchwork.freedesktop.org/patch/msgid/20180824014807.14681-1-manasi.d.navare@intel.com (cherry picked from commit 5df52391ddbed869c7d67b00fbb013bd64334115) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/i915_reg.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 08ec7446282e..9e63cd47b60f 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -10422,7 +10422,7 @@ enum skl_power_gate { _ICL_DSC0_PICTURE_PARAMETER_SET_4_PB, \ _ICL_DSC0_PICTURE_PARAMETER_SET_4_PC) #define ICL_DSC1_PICTURE_PARAMETER_SET_4(pipe) _MMIO_PIPE((pipe) - PIPE_B, \ - _ICL_DSC0_PICTURE_PARAMETER_SET_4_PB, \ + _ICL_DSC1_PICTURE_PARAMETER_SET_4_PB, \ _ICL_DSC1_PICTURE_PARAMETER_SET_4_PC) #define DSC_INITIAL_DEC_DELAY(dec_delay) ((dec_delay) << 16) #define DSC_INITIAL_XMIT_DELAY(xmit_delay) ((xmit_delay) << 0) @@ -10437,7 +10437,7 @@ enum skl_power_gate { _ICL_DSC0_PICTURE_PARAMETER_SET_5_PB, \ _ICL_DSC0_PICTURE_PARAMETER_SET_5_PC) #define ICL_DSC1_PICTURE_PARAMETER_SET_5(pipe) _MMIO_PIPE((pipe) - PIPE_B, \ - _ICL_DSC1_PICTURE_PARAMETER_SET_5_PC, \ + _ICL_DSC1_PICTURE_PARAMETER_SET_5_PB, \ _ICL_DSC1_PICTURE_PARAMETER_SET_5_PC) #define DSC_SCALE_DEC_INTINT(scale_dec) ((scale_dec) << 16) #define DSC_SCALE_INC_INT(scale_inc) ((scale_inc) << 0) From 2b82435cb90bed2c5f8398730d964dd11602217c Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Fri, 31 Aug 2018 20:47:39 +0300 Subject: [PATCH 0549/1762] drm/i915/dp_mst: Fix enabling pipe clock for all streams MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit afb2c4437dae ("drm/i915/ddi: Push pipe clock enabling to encoders") inadvertently stopped enabling the pipe clock for any DP-MST stream after the first one. It also rearranged the pipe clock enabling wrt. initial MST payload allocation step (which may or may not be a problem, but it's contrary to the spec.). Fix things by making the above commit truly a non-functional change. Fixes: afb2c4437dae ("drm/i915/ddi: Push pipe clock enabling to encoders") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107365 Reported-by: Lyude Paul Reported-by: dmummenschanz@web.de Tested-by: dmummenschanz@web.de Tested-by: Lyude Paul Cc: Lyude Paul Cc: dmummenschanz@web.de Cc: Ville Syrjälä Cc: Rodrigo Vivi Cc: Chris Wilson Signed-off-by: Imre Deak Reviewed-by: Ville Syrjälä Reviewed-by: Lyude Paul Reviewed-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20180831174739.30387-1-imre.deak@intel.com (cherry picked from commit 2b5cf4ef541f1b2facaca58cae5e8e0b5f19ad4c) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/intel_ddi.c | 17 +++++++++-------- drivers/gpu/drm/i915/intel_dp_mst.c | 4 ++++ 2 files changed, 13 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 8761513f3532..c9af34861d9e 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -2708,7 +2708,8 @@ static void intel_ddi_pre_enable_dp(struct intel_encoder *encoder, if (port != PORT_A || INTEL_GEN(dev_priv) >= 9) intel_dp_stop_link_train(intel_dp); - intel_ddi_enable_pipe_clock(crtc_state); + if (!is_mst) + intel_ddi_enable_pipe_clock(crtc_state); } static void intel_ddi_pre_enable_hdmi(struct intel_encoder *encoder, @@ -2810,14 +2811,14 @@ static void intel_ddi_post_disable_dp(struct intel_encoder *encoder, bool is_mst = intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_DP_MST); - intel_ddi_disable_pipe_clock(old_crtc_state); - - /* - * Power down sink before disabling the port, otherwise we end - * up getting interrupts from the sink on detecting link loss. - */ - if (!is_mst) + if (!is_mst) { + intel_ddi_disable_pipe_clock(old_crtc_state); + /* + * Power down sink before disabling the port, otherwise we end + * up getting interrupts from the sink on detecting link loss. + */ intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF); + } intel_disable_ddi_buf(encoder); diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c index 7e3e01607643..4ecd65375603 100644 --- a/drivers/gpu/drm/i915/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/intel_dp_mst.c @@ -166,6 +166,8 @@ static void intel_mst_post_disable_dp(struct intel_encoder *encoder, struct intel_connector *connector = to_intel_connector(old_conn_state->connector); + intel_ddi_disable_pipe_clock(old_crtc_state); + /* this can fail */ drm_dp_check_act_status(&intel_dp->mst_mgr); /* and this can also fail */ @@ -252,6 +254,8 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder, I915_WRITE(DP_TP_STATUS(port), temp); ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr); + + intel_ddi_enable_pipe_clock(pipe_config); } static void intel_mst_enable_dp(struct intel_encoder *encoder, From c10bbfae3ae43fae1d77e16f05a73474acf514ff Mon Sep 17 00:00:00 2001 From: Vlad Buslov Date: Mon, 3 Sep 2018 10:04:55 +0300 Subject: [PATCH 0550/1762] net: sched: null actions array pointer before releasing action Currently, tcf_action_delete() nulls actions array pointer after putting and deleting it. However, if tcf_idr_delete_index() returns an error, pointer to action is not set to null. That results it being released second time in error handling code of tca_action_gd(). Kasan error: [ 807.367755] ================================================================== [ 807.375844] BUG: KASAN: use-after-free in tc_setup_cb_call+0x14e/0x250 [ 807.382763] Read of size 8 at addr ffff88033e636000 by task tc/2732 [ 807.391289] CPU: 0 PID: 2732 Comm: tc Tainted: G W 4.19.0-rc1+ #799 [ 807.399542] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017 [ 807.407948] Call Trace: [ 807.410763] dump_stack+0x92/0xeb [ 807.414456] print_address_description+0x70/0x360 [ 807.419549] kasan_report+0x14d/0x300 [ 807.423582] ? tc_setup_cb_call+0x14e/0x250 [ 807.428150] tc_setup_cb_call+0x14e/0x250 [ 807.432539] ? nla_put+0x65/0xe0 [ 807.436146] fl_dump+0x394/0x3f0 [cls_flower] [ 807.440890] ? fl_tmplt_dump+0x140/0x140 [cls_flower] [ 807.446327] ? lock_downgrade+0x320/0x320 [ 807.450702] ? lock_acquire+0xe2/0x220 [ 807.454819] ? is_bpf_text_address+0x5/0x140 [ 807.459475] ? memcpy+0x34/0x50 [ 807.462980] ? nla_put+0x65/0xe0 [ 807.466582] tcf_fill_node+0x341/0x430 [ 807.470717] ? tcf_block_put+0xe0/0xe0 [ 807.474859] tcf_node_dump+0xdb/0xf0 [ 807.478821] fl_walk+0x8e/0x170 [cls_flower] [ 807.483474] tcf_chain_dump+0x35a/0x4d0 [ 807.487703] ? tfilter_notify+0x170/0x170 [ 807.492091] ? tcf_fill_node+0x430/0x430 [ 807.496411] tc_dump_tfilter+0x362/0x3f0 [ 807.500712] ? tc_del_tfilter+0x850/0x850 [ 807.505104] ? kasan_unpoison_shadow+0x30/0x40 [ 807.509940] ? __mutex_unlock_slowpath+0xcf/0x410 [ 807.515031] netlink_dump+0x263/0x4f0 [ 807.519077] __netlink_dump_start+0x2a0/0x300 [ 807.523817] ? tc_del_tfilter+0x850/0x850 [ 807.528198] rtnetlink_rcv_msg+0x46a/0x6d0 [ 807.532671] ? rtnl_fdb_del+0x3f0/0x3f0 [ 807.536878] ? tc_del_tfilter+0x850/0x850 [ 807.541280] netlink_rcv_skb+0x18d/0x200 [ 807.545570] ? rtnl_fdb_del+0x3f0/0x3f0 [ 807.549773] ? netlink_ack+0x500/0x500 [ 807.553913] netlink_unicast+0x2d0/0x370 [ 807.558212] ? netlink_attachskb+0x340/0x340 [ 807.562855] ? _copy_from_iter_full+0xe9/0x3e0 [ 807.567677] ? import_iovec+0x11e/0x1c0 [ 807.571890] netlink_sendmsg+0x3b9/0x6a0 [ 807.576192] ? netlink_unicast+0x370/0x370 [ 807.580684] ? netlink_unicast+0x370/0x370 [ 807.585154] sock_sendmsg+0x6b/0x80 [ 807.589015] ___sys_sendmsg+0x4a1/0x520 [ 807.593230] ? copy_msghdr_from_user+0x210/0x210 [ 807.598232] ? do_wp_page+0x174/0x880 [ 807.602276] ? __handle_mm_fault+0x749/0x1c10 [ 807.607021] ? __handle_mm_fault+0x1046/0x1c10 [ 807.611849] ? __pmd_alloc+0x320/0x320 [ 807.615973] ? check_chain_key+0x140/0x1f0 [ 807.620450] ? check_chain_key+0x140/0x1f0 [ 807.624929] ? __fget_light+0xbc/0xd0 [ 807.628970] ? __sys_sendmsg+0xd7/0x150 [ 807.633172] __sys_sendmsg+0xd7/0x150 [ 807.637201] ? __ia32_sys_shutdown+0x30/0x30 [ 807.641846] ? up_read+0x53/0x90 [ 807.645442] ? __do_page_fault+0x484/0x780 [ 807.649949] ? do_syscall_64+0x1e/0x2c0 [ 807.654164] do_syscall_64+0x72/0x2c0 [ 807.658198] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 807.663625] RIP: 0033:0x7f42e9870150 [ 807.667568] Code: 8b 15 3c 7d 2b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb cd 66 0f 1f 44 00 00 83 3d b9 d5 2b 00 00 75 10 b8 2e 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 be cd 00 00 48 89 04 24 [ 807.687328] RSP: 002b:00007ffdbf595b58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 807.695564] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f42e9870150 [ 807.703083] RDX: 0000000000000000 RSI: 00007ffdbf595b80 RDI: 0000000000000003 [ 807.710605] RBP: 00007ffdbf599d90 R08: 0000000000679bc0 R09: 000000000000000f [ 807.718127] R10: 00000000000005e7 R11: 0000000000000246 R12: 00007ffdbf599d88 [ 807.725651] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 807.735048] Allocated by task 2687: [ 807.738902] kasan_kmalloc+0xa0/0xd0 [ 807.742852] __kmalloc+0x118/0x2d0 [ 807.746615] tcf_idr_create+0x44/0x320 [ 807.750738] tcf_nat_init+0x41e/0x530 [act_nat] [ 807.755638] tcf_action_init_1+0x4e0/0x650 [ 807.760104] tcf_action_init+0x1ce/0x2d0 [ 807.764395] tcf_exts_validate+0x1d8/0x200 [ 807.768861] fl_change+0x55a/0x26b4 [cls_flower] [ 807.773845] tc_new_tfilter+0x748/0xa20 [ 807.778051] rtnetlink_rcv_msg+0x56a/0x6d0 [ 807.782517] netlink_rcv_skb+0x18d/0x200 [ 807.786804] netlink_unicast+0x2d0/0x370 [ 807.791095] netlink_sendmsg+0x3b9/0x6a0 [ 807.795387] sock_sendmsg+0x6b/0x80 [ 807.799240] ___sys_sendmsg+0x4a1/0x520 [ 807.803445] __sys_sendmsg+0xd7/0x150 [ 807.807473] do_syscall_64+0x72/0x2c0 [ 807.811506] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 807.818776] Freed by task 2728: [ 807.822283] __kasan_slab_free+0x122/0x180 [ 807.826752] kfree+0xf4/0x2f0 [ 807.830080] __tcf_action_put+0x5a/0xb0 [ 807.834281] tcf_action_put_many+0x46/0x70 [ 807.838747] tca_action_gd+0x232/0xc40 [ 807.842862] tc_ctl_action+0x215/0x230 [ 807.846977] rtnetlink_rcv_msg+0x56a/0x6d0 [ 807.851444] netlink_rcv_skb+0x18d/0x200 [ 807.855731] netlink_unicast+0x2d0/0x370 [ 807.860021] netlink_sendmsg+0x3b9/0x6a0 [ 807.864312] sock_sendmsg+0x6b/0x80 [ 807.868166] ___sys_sendmsg+0x4a1/0x520 [ 807.872372] __sys_sendmsg+0xd7/0x150 [ 807.876401] do_syscall_64+0x72/0x2c0 [ 807.880431] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 807.887704] The buggy address belongs to the object at ffff88033e636000 which belongs to the cache kmalloc-256 of size 256 [ 807.900909] The buggy address is located 0 bytes inside of 256-byte region [ffff88033e636000, ffff88033e636100) [ 807.913155] The buggy address belongs to the page: [ 807.918322] page:ffffea000cf98d80 count:1 mapcount:0 mapping:ffff88036f80ee00 index:0x0 compound_mapcount: 0 [ 807.928831] flags: 0x5fff8000008100(slab|head) [ 807.933647] raw: 005fff8000008100 ffffea000db44f00 0000000400000004 ffff88036f80ee00 [ 807.942050] raw: 0000000000000000 0000000080190019 00000001ffffffff 0000000000000000 [ 807.950456] page dumped because: kasan: bad access detected [ 807.958240] Memory state around the buggy address: [ 807.963405] ffff88033e635f00: fc fc fc fc fb fb fb fb fb fb fb fc fc fc fc fb [ 807.971288] ffff88033e635f80: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc [ 807.979166] >ffff88033e636000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 807.994882] ^ [ 807.998477] ffff88033e636080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 808.006352] ffff88033e636100: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 808.014230] ================================================================== [ 808.022108] Disabling lock debugging due to kernel taint Fixes: edfaf94fa705 ("net_sched: improve and refactor tcf_action_put_many()") Signed-off-by: Vlad Buslov Acked-by: Cong Wang Signed-off-by: David S. Miller --- net/sched/act_api.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/act_api.c b/net/sched/act_api.c index 316c98bb87e4..e12f8ef7baa4 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -1179,6 +1179,7 @@ static int tcf_action_delete(struct net *net, struct tc_action *actions[]) struct tcf_idrinfo *idrinfo = a->idrinfo; u32 act_index = a->tcfa_index; + actions[i] = NULL; if (tcf_action_put(a)) { /* last reference, action was deleted concurrently */ module_put(ops->owner); @@ -1190,7 +1191,6 @@ static int tcf_action_delete(struct net *net, struct tc_action *actions[]) if (ret < 0) return ret; } - actions[i] = NULL; } return 0; } From bf68066fccb10fce6bbffdda24ee2ae314c9c5b2 Mon Sep 17 00:00:00 2001 From: Ivan Mikhaylov Date: Mon, 3 Sep 2018 10:26:28 +0300 Subject: [PATCH 0551/1762] net/ibm/emac: wrong emac_calc_base call was used by typo __emac_calc_base_mr1 was used instead of __emac4_calc_base_mr1 by copy-paste mistake for emac4syn. Fixes: 45d6e545505fd32edb812f085be7de45b6a5c0af ("net/ibm/emac: add 8192 rx/tx fifo size") Signed-off-by: Ivan Mikhaylov Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/emac/core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c index 354c0982847b..372664686309 100644 --- a/drivers/net/ethernet/ibm/emac/core.c +++ b/drivers/net/ethernet/ibm/emac/core.c @@ -494,9 +494,6 @@ static u32 __emac_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_s case 16384: ret |= EMAC_MR1_RFS_16K; break; - case 8192: - ret |= EMAC4_MR1_RFS_8K; - break; case 4096: ret |= EMAC_MR1_RFS_4K; break; @@ -537,6 +534,9 @@ static u32 __emac4_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_ case 16384: ret |= EMAC4_MR1_RFS_16K; break; + case 8192: + ret |= EMAC4_MR1_RFS_8K; + break; case 4096: ret |= EMAC4_MR1_RFS_4K; break; From af8a2b8ba7678b4695f9e854ba9abae1076beabe Mon Sep 17 00:00:00 2001 From: Xin Long Date: Mon, 3 Sep 2018 15:47:10 +0800 Subject: [PATCH 0552/1762] sctp: fix invalid reference to the index variable of the iterator Now in sctp_apply_peer_addr_params(), if SPP_IPV6_FLOWLABEL flag is set and trans is NULL, it would use trans as the index variable to traverse transport_addr_list, then trans is set as the last transport of it. Later, if SPP_DSCP flag is set, it would enter into the wrong branch as trans is actually an invalid reference. So fix it by using a new index variable to traverse transport_addr_list for both SPP_DSCP and SPP_IPV6_FLOWLABEL flags process. Fixes: 0b0dce7a36fb ("sctp: add spp_ipv6_flowlabel and spp_dscp for sctp_paddrparams") Reported-by: Julia Lawall Signed-off-by: Xin Long Signed-off-by: David S. Miller --- net/sctp/socket.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/net/sctp/socket.c b/net/sctp/socket.c index aa76586a1a1c..a0ccfa4b8220 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -2663,14 +2663,15 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params, SCTP_FLOWLABEL_VAL_MASK; trans->flowlabel |= SCTP_FLOWLABEL_SET_MASK; } else if (asoc) { - list_for_each_entry(trans, - &asoc->peer.transport_addr_list, + struct sctp_transport *t; + + list_for_each_entry(t, &asoc->peer.transport_addr_list, transports) { - if (trans->ipaddr.sa.sa_family != AF_INET6) + if (t->ipaddr.sa.sa_family != AF_INET6) continue; - trans->flowlabel = params->spp_ipv6_flowlabel & - SCTP_FLOWLABEL_VAL_MASK; - trans->flowlabel |= SCTP_FLOWLABEL_SET_MASK; + t->flowlabel = params->spp_ipv6_flowlabel & + SCTP_FLOWLABEL_VAL_MASK; + t->flowlabel |= SCTP_FLOWLABEL_SET_MASK; } asoc->flowlabel = params->spp_ipv6_flowlabel & SCTP_FLOWLABEL_VAL_MASK; @@ -2687,12 +2688,13 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params, trans->dscp = params->spp_dscp & SCTP_DSCP_VAL_MASK; trans->dscp |= SCTP_DSCP_SET_MASK; } else if (asoc) { - list_for_each_entry(trans, - &asoc->peer.transport_addr_list, + struct sctp_transport *t; + + list_for_each_entry(t, &asoc->peer.transport_addr_list, transports) { - trans->dscp = params->spp_dscp & - SCTP_DSCP_VAL_MASK; - trans->dscp |= SCTP_DSCP_SET_MASK; + t->dscp = params->spp_dscp & + SCTP_DSCP_VAL_MASK; + t->dscp |= SCTP_DSCP_SET_MASK; } asoc->dscp = params->spp_dscp & SCTP_DSCP_VAL_MASK; asoc->dscp |= SCTP_DSCP_SET_MASK; From 741880e1f2f59b20125dc480765d2546cec66080 Mon Sep 17 00:00:00 2001 From: Xin Long Date: Mon, 3 Sep 2018 15:47:11 +0800 Subject: [PATCH 0553/1762] sctp: not traverse asoc trans list if non-ipv6 trans exists for ipv6_flowlabel When users set params.spp_address and get a trans, ipv6_flowlabel flag should be applied into this trans. But even if this one is not an ipv6 trans, it should not go to apply it into all other transes of the asoc but simply ignore it. Fixes: 0b0dce7a36fb ("sctp: add spp_ipv6_flowlabel and spp_dscp for sctp_paddrparams") Signed-off-by: Xin Long Signed-off-by: David S. Miller --- net/sctp/socket.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/net/sctp/socket.c b/net/sctp/socket.c index a0ccfa4b8220..f73e9d38d5ba 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -2658,10 +2658,12 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params, } if (params->spp_flags & SPP_IPV6_FLOWLABEL) { - if (trans && trans->ipaddr.sa.sa_family == AF_INET6) { - trans->flowlabel = params->spp_ipv6_flowlabel & - SCTP_FLOWLABEL_VAL_MASK; - trans->flowlabel |= SCTP_FLOWLABEL_SET_MASK; + if (trans) { + if (trans->ipaddr.sa.sa_family == AF_INET6) { + trans->flowlabel = params->spp_ipv6_flowlabel & + SCTP_FLOWLABEL_VAL_MASK; + trans->flowlabel |= SCTP_FLOWLABEL_SET_MASK; + } } else if (asoc) { struct sctp_transport *t; From 6b95c3e9697254dab0c8eafc6ab9d5e10d2eca4e Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Mon, 3 Sep 2018 04:23:17 -0400 Subject: [PATCH 0554/1762] bnxt_en: Fix firmware signaled resource change logic in open. When the driver detects that resources have changed during open, it should reset the rx and tx rings to 0. This will properly setup the init sequence to initialize the default rings again. We also need to signal the RDMA driver to stop and clear its interrupts. We then call the RoCE driver to restart if a new set of default rings is successfully reserved. Fixes: 25e1acd6b92b ("bnxt_en: Notify firmware about IF state changes.") Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 8bb1e38b1681..6a1baf375ac3 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -6684,6 +6684,8 @@ static int bnxt_hwrm_if_change(struct bnxt *bp, bool up) hw_resc->resv_rx_rings = 0; hw_resc->resv_hw_ring_grps = 0; hw_resc->resv_vnics = 0; + bp->tx_nr_rings = 0; + bp->rx_nr_rings = 0; } return rc; } @@ -8769,20 +8771,25 @@ static int bnxt_init_dflt_ring_mode(struct bnxt *bp) if (bp->tx_nr_rings) return 0; + bnxt_ulp_irq_stop(bp); + bnxt_clear_int_mode(bp); rc = bnxt_set_dflt_rings(bp, true); if (rc) { netdev_err(bp->dev, "Not enough rings available.\n"); - return rc; + goto init_dflt_ring_err; } rc = bnxt_init_int_mode(bp); if (rc) - return rc; + goto init_dflt_ring_err; + bp->tx_nr_rings_per_tc = bp->tx_nr_rings; if (bnxt_rfs_supported(bp) && bnxt_rfs_capable(bp)) { bp->flags |= BNXT_FLAG_RFS; bp->dev->features |= NETIF_F_NTUPLE; } - return 0; +init_dflt_ring_err: + bnxt_ulp_irq_restart(bp, rc); + return rc; } int bnxt_restore_pf_fw_resources(struct bnxt *bp) From ad95c27bdb930105f3eea02621bda157caf2862d Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Mon, 3 Sep 2018 04:23:18 -0400 Subject: [PATCH 0555/1762] bnxt_en: Clean up unused functions. Remove unused bnxt_subtract_ulp_resources(). Change bnxt_get_max_func_irqs() to static since it is only locally used. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 - drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 15 --------------- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h | 1 - 4 files changed, 1 insertion(+), 18 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 6a1baf375ac3..6472ce447f87 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -5918,7 +5918,7 @@ void bnxt_set_max_func_cp_rings(struct bnxt *bp, unsigned int max) bp->hw_resc.max_cp_rings = max; } -unsigned int bnxt_get_max_func_irqs(struct bnxt *bp) +static unsigned int bnxt_get_max_func_irqs(struct bnxt *bp) { struct bnxt_hw_resc *hw_resc = &bp->hw_resc; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index fefa011320e0..c4c77b9fa77b 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1482,7 +1482,6 @@ unsigned int bnxt_get_max_func_stat_ctxs(struct bnxt *bp); void bnxt_set_max_func_stat_ctxs(struct bnxt *bp, unsigned int max); unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp); void bnxt_set_max_func_cp_rings(struct bnxt *bp, unsigned int max); -unsigned int bnxt_get_max_func_irqs(struct bnxt *bp); int bnxt_get_avail_msix(struct bnxt *bp, int num); int bnxt_reserve_rings(struct bnxt *bp); void bnxt_tx_disable(struct bnxt *bp); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index c37b2842f972..deac73e8e0f7 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -220,21 +220,6 @@ int bnxt_get_ulp_msix_base(struct bnxt *bp) return 0; } -void bnxt_subtract_ulp_resources(struct bnxt *bp, int ulp_id) -{ - ASSERT_RTNL(); - if (bnxt_ulp_registered(bp->edev, ulp_id)) { - struct bnxt_en_dev *edev = bp->edev; - unsigned int msix_req, max; - - msix_req = edev->ulp_tbl[ulp_id].msix_requested; - max = bnxt_get_max_func_cp_rings(bp); - bnxt_set_max_func_cp_rings(bp, max - msix_req); - max = bnxt_get_max_func_stat_ctxs(bp); - bnxt_set_max_func_stat_ctxs(bp, max - 1); - } -} - static int bnxt_send_msg(struct bnxt_en_dev *edev, int ulp_id, struct bnxt_fw_msg *fw_msg) { diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h index df48ac71729f..d9bea37cd211 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h @@ -90,7 +90,6 @@ static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev, int ulp_id) int bnxt_get_ulp_msix_num(struct bnxt *bp); int bnxt_get_ulp_msix_base(struct bnxt *bp); -void bnxt_subtract_ulp_resources(struct bnxt *bp, int ulp_id); void bnxt_ulp_stop(struct bnxt *bp); void bnxt_ulp_start(struct bnxt *bp); void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs); From 00fe9c326d2027f2437dea38ef0e82f9d02d94c0 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Mon, 3 Sep 2018 04:23:19 -0400 Subject: [PATCH 0556/1762] bnxt_en: Do not adjust max_cp_rings by the ones used by RDMA. Currently, the driver adjusts the bp->hw_resc.max_cp_rings by the number of MSIX vectors used by RDMA. There is one code path in open that needs to check the true max_cp_rings including any used by RDMA. This code is now checking for the reduced max_cp_rings which will fail when the number of cp rings is very small. To fix this in a clean way, we don't adjust max_cp_rings anymore. Instead, we add a helper bnxt_get_max_func_cp_rings_for_en() to get the reduced max_cp_rings when appropriate. Fixes: ec86f14ea506 ("bnxt_en: Add ULP calls to stop and restart IRQs.") Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 7 ++++--- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 2 +- drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | 7 ++++--- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 5 ----- 4 files changed, 9 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 6472ce447f87..cecbb1d1f587 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -5913,9 +5913,9 @@ unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp) return bp->hw_resc.max_cp_rings; } -void bnxt_set_max_func_cp_rings(struct bnxt *bp, unsigned int max) +unsigned int bnxt_get_max_func_cp_rings_for_en(struct bnxt *bp) { - bp->hw_resc.max_cp_rings = max; + return bp->hw_resc.max_cp_rings - bnxt_get_ulp_msix_num(bp); } static unsigned int bnxt_get_max_func_irqs(struct bnxt *bp) @@ -8631,7 +8631,8 @@ static void _bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, *max_tx = hw_resc->max_tx_rings; *max_rx = hw_resc->max_rx_rings; - *max_cp = min_t(int, hw_resc->max_irqs, hw_resc->max_cp_rings); + *max_cp = min_t(int, bnxt_get_max_func_cp_rings_for_en(bp), + hw_resc->max_irqs); *max_cp = min_t(int, *max_cp, hw_resc->max_stat_ctxs); max_ring_grps = hw_resc->max_hw_ring_grps; if (BNXT_CHIP_TYPE_NITRO_A0(bp) && BNXT_PF(bp)) { diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index c4c77b9fa77b..bde384630a75 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1481,7 +1481,7 @@ int bnxt_hwrm_set_coal(struct bnxt *); unsigned int bnxt_get_max_func_stat_ctxs(struct bnxt *bp); void bnxt_set_max_func_stat_ctxs(struct bnxt *bp, unsigned int max); unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp); -void bnxt_set_max_func_cp_rings(struct bnxt *bp, unsigned int max); +unsigned int bnxt_get_max_func_cp_rings_for_en(struct bnxt *bp); int bnxt_get_avail_msix(struct bnxt *bp, int num); int bnxt_reserve_rings(struct bnxt *bp); void bnxt_tx_disable(struct bnxt *bp); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c index 6d583bcd2a81..fcd085a9853a 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c @@ -451,7 +451,7 @@ static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs) bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_RESOURCE_CFG, -1, -1); - vf_cp_rings = hw_resc->max_cp_rings - bp->cp_nr_rings; + vf_cp_rings = bnxt_get_max_func_cp_rings_for_en(bp) - bp->cp_nr_rings; vf_stat_ctx = hw_resc->max_stat_ctxs - bp->num_stat_ctxs; if (bp->flags & BNXT_FLAG_AGG_RINGS) vf_rx_rings = hw_resc->max_rx_rings - bp->rx_nr_rings * 2; @@ -549,7 +549,8 @@ static int bnxt_hwrm_func_cfg(struct bnxt *bp, int num_vfs) max_stat_ctxs = hw_resc->max_stat_ctxs; /* Remaining rings are distributed equally amongs VF's for now */ - vf_cp_rings = (hw_resc->max_cp_rings - bp->cp_nr_rings) / num_vfs; + vf_cp_rings = (bnxt_get_max_func_cp_rings_for_en(bp) - + bp->cp_nr_rings) / num_vfs; vf_stat_ctx = (max_stat_ctxs - bp->num_stat_ctxs) / num_vfs; if (bp->flags & BNXT_FLAG_AGG_RINGS) vf_rx_rings = (hw_resc->max_rx_rings - bp->rx_nr_rings * 2) / @@ -643,7 +644,7 @@ static int bnxt_sriov_enable(struct bnxt *bp, int *num_vfs) */ vfs_supported = *num_vfs; - avail_cp = hw_resc->max_cp_rings - bp->cp_nr_rings; + avail_cp = bnxt_get_max_func_cp_rings_for_en(bp) - bp->cp_nr_rings; avail_stat = hw_resc->max_stat_ctxs - bp->num_stat_ctxs; avail_cp = min_t(int, avail_cp, avail_stat); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index deac73e8e0f7..beee61292d5e 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -169,7 +169,6 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, int ulp_id, edev->ulp_tbl[ulp_id].msix_requested = avail_msix; } bnxt_fill_msix_vecs(bp, ent); - bnxt_set_max_func_cp_rings(bp, max_cp_rings - avail_msix); edev->flags |= BNXT_EN_FLAG_MSIX_REQUESTED; return avail_msix; } @@ -178,7 +177,6 @@ static int bnxt_free_msix_vecs(struct bnxt_en_dev *edev, int ulp_id) { struct net_device *dev = edev->net; struct bnxt *bp = netdev_priv(dev); - int max_cp_rings, msix_requested; ASSERT_RTNL(); if (ulp_id != BNXT_ROCE_ULP) @@ -187,9 +185,6 @@ static int bnxt_free_msix_vecs(struct bnxt_en_dev *edev, int ulp_id) if (!(edev->flags & BNXT_EN_FLAG_MSIX_REQUESTED)) return 0; - max_cp_rings = bnxt_get_max_func_cp_rings(bp); - msix_requested = edev->ulp_tbl[ulp_id].msix_requested; - bnxt_set_max_func_cp_rings(bp, max_cp_rings + msix_requested); edev->ulp_tbl[ulp_id].msix_requested = 0; edev->flags &= ~BNXT_EN_FLAG_MSIX_REQUESTED; if (netif_running(dev)) { From 9cc1bf3928b31e515ed15477b3c7eb653d0b3b42 Mon Sep 17 00:00:00 2001 From: Zhenbo Gao Date: Mon, 3 Sep 2018 16:36:45 +0800 Subject: [PATCH 0557/1762] tipc: correct spelling errors for struct tipc_bc_base's comment Trivial fix for two spelling mistakes. Signed-off-by: Zhenbo Gao Reviewed-by: Ying Xue Signed-off-by: David S. Miller --- net/tipc/bcast.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index 9ee6cfea56dd..d8026543bf4c 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -51,12 +51,12 @@ const char tipc_bclink_name[] = "broadcast-link"; * struct tipc_bc_base - base structure for keeping broadcast send state * @link: broadcast send link structure * @inputq: data input queue; will only carry SOCK_WAKEUP messages - * @dest: array keeping number of reachable destinations per bearer + * @dests: array keeping number of reachable destinations per bearer * @primary_bearer: a bearer having links to all broadcast destinations, if any * @bcast_support: indicates if primary bearer, if any, supports broadcast * @rcast_support: indicates if all peer nodes support replicast * @rc_ratio: dest count as percentage of cluster size where send method changes - * @bc_threshold: calculated drom rc_ratio; if dests > threshold use broadcast + * @bc_threshold: calculated from rc_ratio; if dests > threshold use broadcast */ struct tipc_bc_base { struct tipc_link *link; From a484ef3442d2f05fa59edf4f6d14a8169d1b94a6 Mon Sep 17 00:00:00 2001 From: Zhenbo Gao Date: Mon, 3 Sep 2018 16:36:46 +0800 Subject: [PATCH 0558/1762] tipc: correct spelling errors for tipc_topsrv_queue_evt() comments tipc_conn_queue_evt -> tipc_topsrv_queue_evt tipc_send_work -> tipc_conn_send_work tipc_send_to_sock -> tipc_conn_send_to_sock Signed-off-by: Zhenbo Gao Reviewed-by: Ying Xue Signed-off-by: David S. Miller --- net/tipc/topsrv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/tipc/topsrv.c b/net/tipc/topsrv.c index c8e34ef22c30..2627b5d812e9 100644 --- a/net/tipc/topsrv.c +++ b/net/tipc/topsrv.c @@ -313,8 +313,8 @@ static void tipc_conn_send_work(struct work_struct *work) conn_put(con); } -/* tipc_conn_queue_evt() - interrupt level call from a subscription instance - * The queued work is launched into tipc_send_work()->tipc_send_to_sock() +/* tipc_topsrv_queue_evt() - interrupt level call from a subscription instance + * The queued work is launched into tipc_conn_send_work()->tipc_conn_send_to_sock() */ void tipc_topsrv_queue_evt(struct net *net, int conid, u32 event, struct tipc_event *evt) From 1dfdf99106668679b0de5a62fd4f42c1a11c9445 Mon Sep 17 00:00:00 2001 From: Greentime Hu Date: Wed, 18 Jul 2018 09:54:55 +0800 Subject: [PATCH 0559/1762] nds32: fix logic for module This bug is report by Dan Carpenter. We shall use ~loc_mask instead of !loc_mask because we need to and(&) the bits of ~loc_mask. Reported-by: Dan Carpenter Fixes: c9a4a8da6baa ("nds32: Loadable modules") Signed-off-by: Greentime Hu --- arch/nds32/kernel/module.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/nds32/kernel/module.c b/arch/nds32/kernel/module.c index 4167283d8293..1e31829cbc2a 100644 --- a/arch/nds32/kernel/module.c +++ b/arch/nds32/kernel/module.c @@ -40,7 +40,7 @@ void do_reloc16(unsigned int val, unsigned int *loc, unsigned int val_mask, tmp2 = tmp & loc_mask; if (partial_in_place) { - tmp &= (!loc_mask); + tmp &= (~loc_mask); tmp = tmp2 | ((tmp + ((val & val_mask) >> val_shift)) & val_mask); } else { @@ -70,7 +70,7 @@ void do_reloc32(unsigned int val, unsigned int *loc, unsigned int val_mask, tmp2 = tmp & loc_mask; if (partial_in_place) { - tmp &= (!loc_mask); + tmp &= (~loc_mask); tmp = tmp2 | ((tmp + ((val & val_mask) >> val_shift)) & val_mask); } else { From 1944a50859ec2b570b42b459ac25d607fc7c31f0 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Tue, 7 Aug 2018 12:03:13 +0800 Subject: [PATCH 0560/1762] nds32: add NULL entry to the end of_device_id array Make sure of_device_id tables are NULL terminated. Found by coccinelle spatch "misc/of_table.cocci" Signed-off-by: YueHaibing Acked-by: Greentime Hu Signed-off-by: Greentime Hu --- arch/nds32/kernel/atl2c.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/nds32/kernel/atl2c.c b/arch/nds32/kernel/atl2c.c index 0c6d031a1c4a..0c5386e72098 100644 --- a/arch/nds32/kernel/atl2c.c +++ b/arch/nds32/kernel/atl2c.c @@ -9,7 +9,8 @@ void __iomem *atl2c_base; static const struct of_device_id atl2c_ids[] __initconst = { - {.compatible = "andestech,atl2c",} + {.compatible = "andestech,atl2c",}, + {} }; static int __init atl2c_of_init(void) From c17df7960534357fb74074c2f514c831d4a9cf5a Mon Sep 17 00:00:00 2001 From: Zong Li Date: Mon, 13 Aug 2018 13:28:23 +0800 Subject: [PATCH 0561/1762] nds32: Fix empty call trace The compiler predefined macro 'NDS32_ABI_2' had been removed, it should use the '__NDS32_ABI_2' here. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu --- arch/nds32/kernel/traps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/nds32/kernel/traps.c b/arch/nds32/kernel/traps.c index a6205fd4db52..f0e974347c26 100644 --- a/arch/nds32/kernel/traps.c +++ b/arch/nds32/kernel/traps.c @@ -137,7 +137,7 @@ static void __dump(struct task_struct *tsk, unsigned long *base_reg) !((unsigned long)base_reg & 0x3) && ((unsigned long)base_reg >= TASK_SIZE)) { unsigned long next_fp; -#if !defined(NDS32_ABI_2) +#if !defined(__NDS32_ABI_2) ret_addr = base_reg[0]; next_fp = base_reg[1]; #else From 6cce95a6c7d288ac2126eee4b95df448b9015b84 Mon Sep 17 00:00:00 2001 From: Zong Li Date: Mon, 13 Aug 2018 14:48:49 +0800 Subject: [PATCH 0562/1762] nds32: Fix get_user/put_user macro expand pointer problem The pointer argument of macro need to be taken out once first, and then use the new pointer in the macro body. In kernel/trace/trace.c, get_user(ch, ubuf++) causes the unexpected increment after expand the macro. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu --- arch/nds32/include/asm/uaccess.h | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/arch/nds32/include/asm/uaccess.h b/arch/nds32/include/asm/uaccess.h index 18a009f3804d..3f771e0595e8 100644 --- a/arch/nds32/include/asm/uaccess.h +++ b/arch/nds32/include/asm/uaccess.h @@ -78,8 +78,9 @@ static inline void set_fs(mm_segment_t fs) #define get_user(x,p) \ ({ \ long __e = -EFAULT; \ - if(likely(access_ok(VERIFY_READ, p, sizeof(*p)))) { \ - __e = __get_user(x,p); \ + const __typeof__(*(p)) __user *__p = (p); \ + if(likely(access_ok(VERIFY_READ, __p, sizeof(*__p)))) { \ + __e = __get_user(x, __p); \ } else \ x = 0; \ __e; \ @@ -99,10 +100,10 @@ static inline void set_fs(mm_segment_t fs) #define __get_user_err(x,ptr,err) \ do { \ - unsigned long __gu_addr = (unsigned long)(ptr); \ + const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ unsigned long __gu_val; \ - __chk_user_ptr(ptr); \ - switch (sizeof(*(ptr))) { \ + __chk_user_ptr(__gu_addr); \ + switch (sizeof(*(__gu_addr))) { \ case 1: \ __get_user_asm("lbi",__gu_val,__gu_addr,err); \ break; \ @@ -119,7 +120,7 @@ do { \ BUILD_BUG(); \ break; \ } \ - (x) = (__typeof__(*(ptr)))__gu_val; \ + (x) = (__typeof__(*(__gu_addr)))__gu_val; \ } while (0) #define __get_user_asm(inst,x,addr,err) \ @@ -169,8 +170,9 @@ do { \ #define put_user(x,p) \ ({ \ long __e = -EFAULT; \ - if(likely(access_ok(VERIFY_WRITE, p, sizeof(*p)))) { \ - __e = __put_user(x,p); \ + __typeof__(*(p)) __user *__p = (p); \ + if(likely(access_ok(VERIFY_WRITE, __p, sizeof(*__p)))) { \ + __e = __put_user(x, __p); \ } \ __e; \ }) @@ -189,10 +191,10 @@ do { \ #define __put_user_err(x,ptr,err) \ do { \ - unsigned long __pu_addr = (unsigned long)(ptr); \ - __typeof__(*(ptr)) __pu_val = (x); \ - __chk_user_ptr(ptr); \ - switch (sizeof(*(ptr))) { \ + __typeof__(*(ptr)) __user *__pu_addr = (ptr); \ + __typeof__(*(__pu_addr)) __pu_val = (x); \ + __chk_user_ptr(__pu_addr); \ + switch (sizeof(*(__pu_addr))) { \ case 1: \ __put_user_asm("sbi",__pu_val,__pu_addr,err); \ break; \ From 7ef39548df8cdb6406e3b4b7255e7f8cd3fe3b13 Mon Sep 17 00:00:00 2001 From: Zong Li Date: Mon, 13 Aug 2018 15:08:52 +0800 Subject: [PATCH 0563/1762] nds32: Clean up the coding style 1. Adjust indentation. 2. Unify argument name of each macro. 3. Add space after comma in parameters list. 4. Add space after 'if' keyword. 5. Replace space by tab. 6. Change asm volatile to __asm__ __volatile__ Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu --- arch/nds32/include/asm/uaccess.h | 201 ++++++++++++++++--------------- 1 file changed, 103 insertions(+), 98 deletions(-) diff --git a/arch/nds32/include/asm/uaccess.h b/arch/nds32/include/asm/uaccess.h index 3f771e0595e8..e1a2b5b749b9 100644 --- a/arch/nds32/include/asm/uaccess.h +++ b/arch/nds32/include/asm/uaccess.h @@ -38,7 +38,7 @@ struct exception_table_entry { extern int fixup_exception(struct pt_regs *regs); #define KERNEL_DS ((mm_segment_t) { ~0UL }) -#define USER_DS ((mm_segment_t) {TASK_SIZE - 1}) +#define USER_DS ((mm_segment_t) {TASK_SIZE - 1}) #define get_ds() (KERNEL_DS) #define get_fs() (current_thread_info()->addr_limit) @@ -49,11 +49,11 @@ static inline void set_fs(mm_segment_t fs) current_thread_info()->addr_limit = fs; } -#define segment_eq(a, b) ((a) == (b)) +#define segment_eq(a, b) ((a) == (b)) #define __range_ok(addr, size) (size <= get_fs() && addr <= (get_fs() -size)) -#define access_ok(type, addr, size) \ +#define access_ok(type, addr, size) \ __range_ok((unsigned long)addr, (unsigned long)size) /* * Single-value transfer routines. They automatically use the right @@ -75,46 +75,48 @@ static inline void set_fs(mm_segment_t fs) * versions are void (ie, don't return a value as such). */ -#define get_user(x,p) \ +#define get_user(x, ptr) \ ({ \ long __e = -EFAULT; \ - const __typeof__(*(p)) __user *__p = (p); \ - if(likely(access_ok(VERIFY_READ, __p, sizeof(*__p)))) { \ + const __typeof__(*(ptr)) __user *__p = (ptr); \ + if (likely(access_ok(VERIFY_READ, __p, sizeof(*__p)))) { \ __e = __get_user(x, __p); \ - } else \ - x = 0; \ + } else { \ + (x) = 0; \ + } \ __e; \ }) -#define __get_user(x,ptr) \ + +#define __get_user(x, ptr) \ ({ \ long __gu_err = 0; \ - __get_user_err((x),(ptr),__gu_err); \ + __get_user_err((x), (ptr), __gu_err); \ __gu_err; \ }) -#define __get_user_error(x,ptr,err) \ +#define __get_user_error(x, ptr, err) \ ({ \ - __get_user_err((x),(ptr),err); \ - (void) 0; \ + __get_user_err((x), (ptr), err); \ + (void)0; \ }) -#define __get_user_err(x,ptr,err) \ +#define __get_user_err(x, ptr, err) \ do { \ const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ unsigned long __gu_val; \ __chk_user_ptr(__gu_addr); \ switch (sizeof(*(__gu_addr))) { \ case 1: \ - __get_user_asm("lbi",__gu_val,__gu_addr,err); \ + __get_user_asm("lbi", __gu_val, __gu_addr, (err)); \ break; \ case 2: \ - __get_user_asm("lhi",__gu_val,__gu_addr,err); \ + __get_user_asm("lhi", __gu_val, __gu_addr, (err)); \ break; \ case 4: \ - __get_user_asm("lwi",__gu_val,__gu_addr,err); \ + __get_user_asm("lwi", __gu_val, __gu_addr, (err)); \ break; \ case 8: \ - __get_user_asm_dword(__gu_val,__gu_addr,err); \ + __get_user_asm_dword(__gu_val, __gu_addr, (err)); \ break; \ default: \ BUILD_BUG(); \ @@ -123,23 +125,23 @@ do { \ (x) = (__typeof__(*(__gu_addr)))__gu_val; \ } while (0) -#define __get_user_asm(inst,x,addr,err) \ - asm volatile( \ - "1: "inst" %1,[%2]\n" \ - "2:\n" \ - " .section .fixup,\"ax\"\n" \ - " .align 2\n" \ - "3: move %0, %3\n" \ - " move %1, #0\n" \ - " b 2b\n" \ - " .previous\n" \ - " .section __ex_table,\"a\"\n" \ - " .align 3\n" \ - " .long 1b, 3b\n" \ - " .previous" \ - : "+r" (err), "=&r" (x) \ - : "r" (addr), "i" (-EFAULT) \ - : "cc") +#define __get_user_asm(inst, x, addr, err) \ + __asm__ __volatile__ ( \ + "1: "inst" %1,[%2]\n" \ + "2:\n" \ + " .section .fixup,\"ax\"\n" \ + " .align 2\n" \ + "3: move %0, %3\n" \ + " move %1, #0\n" \ + " b 2b\n" \ + " .previous\n" \ + " .section __ex_table,\"a\"\n" \ + " .align 3\n" \ + " .long 1b, 3b\n" \ + " .previous" \ + : "+r" (err), "=&r" (x) \ + : "r" (addr), "i" (-EFAULT) \ + : "cc") #ifdef __NDS32_EB__ #define __gu_reg_oper0 "%H1" @@ -150,62 +152,64 @@ do { \ #endif #define __get_user_asm_dword(x, addr, err) \ - asm volatile( \ - "\n1:\tlwi " __gu_reg_oper0 ",[%2]\n" \ - "\n2:\tlwi " __gu_reg_oper1 ",[%2+4]\n" \ - "3:\n" \ - " .section .fixup,\"ax\"\n" \ - " .align 2\n" \ - "4: move %0, %3\n" \ - " b 3b\n" \ - " .previous\n" \ - " .section __ex_table,\"a\"\n" \ - " .align 3\n" \ - " .long 1b, 4b\n" \ - " .long 2b, 4b\n" \ - " .previous" \ - : "+r"(err), "=&r"(x) \ - : "r"(addr), "i"(-EFAULT) \ - : "cc") -#define put_user(x,p) \ + __asm__ __volatile__ ( \ + "\n1:\tlwi " __gu_reg_oper0 ",[%2]\n" \ + "\n2:\tlwi " __gu_reg_oper1 ",[%2+4]\n" \ + "3:\n" \ + " .section .fixup,\"ax\"\n" \ + " .align 2\n" \ + "4: move %0, %3\n" \ + " b 3b\n" \ + " .previous\n" \ + " .section __ex_table,\"a\"\n" \ + " .align 3\n" \ + " .long 1b, 4b\n" \ + " .long 2b, 4b\n" \ + " .previous" \ + : "+r"(err), "=&r"(x) \ + : "r"(addr), "i"(-EFAULT) \ + : "cc") + +#define put_user(x, ptr) \ ({ \ long __e = -EFAULT; \ - __typeof__(*(p)) __user *__p = (p); \ - if(likely(access_ok(VERIFY_WRITE, __p, sizeof(*__p)))) { \ + __typeof__(*(ptr)) __user *__p = (ptr); \ + if (likely(access_ok(VERIFY_WRITE, __p, sizeof(*__p)))) { \ __e = __put_user(x, __p); \ } \ __e; \ }) -#define __put_user(x,ptr) \ + +#define __put_user(x, ptr) \ ({ \ long __pu_err = 0; \ - __put_user_err((x),(ptr),__pu_err); \ + __put_user_err((x), (ptr), __pu_err); \ __pu_err; \ }) -#define __put_user_error(x,ptr,err) \ +#define __put_user_error(x, ptr, err) \ ({ \ - __put_user_err((x),(ptr),err); \ - (void) 0; \ + __put_user_err((x), (ptr), err); \ + (void)0; \ }) -#define __put_user_err(x,ptr,err) \ +#define __put_user_err(x, ptr, err) \ do { \ __typeof__(*(ptr)) __user *__pu_addr = (ptr); \ __typeof__(*(__pu_addr)) __pu_val = (x); \ __chk_user_ptr(__pu_addr); \ switch (sizeof(*(__pu_addr))) { \ case 1: \ - __put_user_asm("sbi",__pu_val,__pu_addr,err); \ + __put_user_asm("sbi", __pu_val, __pu_addr, (err)); \ break; \ case 2: \ - __put_user_asm("shi",__pu_val,__pu_addr,err); \ + __put_user_asm("shi", __pu_val, __pu_addr, (err)); \ break; \ case 4: \ - __put_user_asm("swi",__pu_val,__pu_addr,err); \ + __put_user_asm("swi", __pu_val, __pu_addr, (err)); \ break; \ case 8: \ - __put_user_asm_dword(__pu_val,__pu_addr,err); \ + __put_user_asm_dword(__pu_val, __pu_addr, (err)); \ break; \ default: \ BUILD_BUG(); \ @@ -213,22 +217,22 @@ do { \ } \ } while (0) -#define __put_user_asm(inst,x,addr,err) \ - asm volatile( \ - "1: "inst" %1,[%2]\n" \ - "2:\n" \ - " .section .fixup,\"ax\"\n" \ - " .align 2\n" \ - "3: move %0, %3\n" \ - " b 2b\n" \ - " .previous\n" \ - " .section __ex_table,\"a\"\n" \ - " .align 3\n" \ - " .long 1b, 3b\n" \ - " .previous" \ - : "+r" (err) \ - : "r" (x), "r" (addr), "i" (-EFAULT) \ - : "cc") +#define __put_user_asm(inst, x, addr, err) \ + __asm__ __volatile__ ( \ + "1: "inst" %1,[%2]\n" \ + "2:\n" \ + " .section .fixup,\"ax\"\n" \ + " .align 2\n" \ + "3: move %0, %3\n" \ + " b 2b\n" \ + " .previous\n" \ + " .section __ex_table,\"a\"\n" \ + " .align 3\n" \ + " .long 1b, 3b\n" \ + " .previous" \ + : "+r" (err) \ + : "r" (x), "r" (addr), "i" (-EFAULT) \ + : "cc") #ifdef __NDS32_EB__ #define __pu_reg_oper0 "%H2" @@ -239,23 +243,24 @@ do { \ #endif #define __put_user_asm_dword(x, addr, err) \ - asm volatile( \ - "\n1:\tswi " __pu_reg_oper0 ",[%1]\n" \ - "\n2:\tswi " __pu_reg_oper1 ",[%1+4]\n" \ - "3:\n" \ - " .section .fixup,\"ax\"\n" \ - " .align 2\n" \ - "4: move %0, %3\n" \ - " b 3b\n" \ - " .previous\n" \ - " .section __ex_table,\"a\"\n" \ - " .align 3\n" \ - " .long 1b, 4b\n" \ - " .long 2b, 4b\n" \ - " .previous" \ - : "+r"(err) \ - : "r"(addr), "r"(x), "i"(-EFAULT) \ - : "cc") + __asm__ __volatile__ ( \ + "\n1:\tswi " __pu_reg_oper0 ",[%1]\n" \ + "\n2:\tswi " __pu_reg_oper1 ",[%1+4]\n" \ + "3:\n" \ + " .section .fixup,\"ax\"\n" \ + " .align 2\n" \ + "4: move %0, %3\n" \ + " b 3b\n" \ + " .previous\n" \ + " .section __ex_table,\"a\"\n" \ + " .align 3\n" \ + " .long 1b, 4b\n" \ + " .long 2b, 4b\n" \ + " .previous" \ + : "+r"(err) \ + : "r"(addr), "r"(x), "i"(-EFAULT) \ + : "cc") + extern unsigned long __arch_clear_user(void __user * addr, unsigned long n); extern long strncpy_from_user(char *dest, const char __user * src, long count); extern __must_check long strlen_user(const char __user * str); From 487913ab18c215b06611c4c91c7e905fc0960eb8 Mon Sep 17 00:00:00 2001 From: Zong Li Date: Mon, 13 Aug 2018 16:02:53 +0800 Subject: [PATCH 0564/1762] nds32: Extract the checking and getting pointer to a macro Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu --- arch/nds32/include/asm/uaccess.h | 80 ++++++++++++++++---------------- 1 file changed, 41 insertions(+), 39 deletions(-) diff --git a/arch/nds32/include/asm/uaccess.h b/arch/nds32/include/asm/uaccess.h index e1a2b5b749b9..362a32d9bd16 100644 --- a/arch/nds32/include/asm/uaccess.h +++ b/arch/nds32/include/asm/uaccess.h @@ -75,54 +75,54 @@ static inline void set_fs(mm_segment_t fs) * versions are void (ie, don't return a value as such). */ -#define get_user(x, ptr) \ -({ \ - long __e = -EFAULT; \ - const __typeof__(*(ptr)) __user *__p = (ptr); \ - if (likely(access_ok(VERIFY_READ, __p, sizeof(*__p)))) { \ - __e = __get_user(x, __p); \ - } else { \ - (x) = 0; \ - } \ - __e; \ -}) +#define get_user __get_user \ #define __get_user(x, ptr) \ ({ \ long __gu_err = 0; \ - __get_user_err((x), (ptr), __gu_err); \ + __get_user_check((x), (ptr), __gu_err); \ __gu_err; \ }) #define __get_user_error(x, ptr, err) \ ({ \ - __get_user_err((x), (ptr), err); \ + __get_user_check((x), (ptr), (err)); \ (void)0; \ }) +#define __get_user_check(x, ptr, err) \ +({ \ + const __typeof__(*(ptr)) __user *__p = (ptr); \ + might_fault(); \ + if (access_ok(VERIFY_READ, __p, sizeof(*__p))) { \ + __get_user_err((x), __p, (err)); \ + } else { \ + (x) = 0; (err) = -EFAULT; \ + } \ +}) + #define __get_user_err(x, ptr, err) \ do { \ - const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ unsigned long __gu_val; \ - __chk_user_ptr(__gu_addr); \ - switch (sizeof(*(__gu_addr))) { \ + __chk_user_ptr(ptr); \ + switch (sizeof(*(ptr))) { \ case 1: \ - __get_user_asm("lbi", __gu_val, __gu_addr, (err)); \ + __get_user_asm("lbi", __gu_val, (ptr), (err)); \ break; \ case 2: \ - __get_user_asm("lhi", __gu_val, __gu_addr, (err)); \ + __get_user_asm("lhi", __gu_val, (ptr), (err)); \ break; \ case 4: \ - __get_user_asm("lwi", __gu_val, __gu_addr, (err)); \ + __get_user_asm("lwi", __gu_val, (ptr), (err)); \ break; \ case 8: \ - __get_user_asm_dword(__gu_val, __gu_addr, (err)); \ + __get_user_asm_dword(__gu_val, (ptr), (err)); \ break; \ default: \ BUILD_BUG(); \ break; \ } \ - (x) = (__typeof__(*(__gu_addr)))__gu_val; \ + (x) = (__force __typeof__(*(ptr)))__gu_val; \ } while (0) #define __get_user_asm(inst, x, addr, err) \ @@ -170,15 +170,7 @@ do { \ : "r"(addr), "i"(-EFAULT) \ : "cc") -#define put_user(x, ptr) \ -({ \ - long __e = -EFAULT; \ - __typeof__(*(ptr)) __user *__p = (ptr); \ - if (likely(access_ok(VERIFY_WRITE, __p, sizeof(*__p)))) { \ - __e = __put_user(x, __p); \ - } \ - __e; \ -}) +#define put_user __put_user \ #define __put_user(x, ptr) \ ({ \ @@ -189,27 +181,37 @@ do { \ #define __put_user_error(x, ptr, err) \ ({ \ - __put_user_err((x), (ptr), err); \ + __put_user_err((x), (ptr), (err)); \ (void)0; \ }) +#define __put_user_check(x, ptr, err) \ +({ \ + __typeof__(*(ptr)) __user *__p = (ptr); \ + might_fault(); \ + if (access_ok(VERIFY_WRITE, __p, sizeof(*__p))) { \ + __put_user_err((x), __p, (err)); \ + } else { \ + (err) = -EFAULT; \ + } \ +}) + #define __put_user_err(x, ptr, err) \ do { \ - __typeof__(*(ptr)) __user *__pu_addr = (ptr); \ - __typeof__(*(__pu_addr)) __pu_val = (x); \ - __chk_user_ptr(__pu_addr); \ - switch (sizeof(*(__pu_addr))) { \ + __typeof__(*(ptr)) __pu_val = (x); \ + __chk_user_ptr(ptr); \ + switch (sizeof(*(ptr))) { \ case 1: \ - __put_user_asm("sbi", __pu_val, __pu_addr, (err)); \ + __put_user_asm("sbi", __pu_val, (ptr), (err)); \ break; \ case 2: \ - __put_user_asm("shi", __pu_val, __pu_addr, (err)); \ + __put_user_asm("shi", __pu_val, (ptr), (err)); \ break; \ case 4: \ - __put_user_asm("swi", __pu_val, __pu_addr, (err)); \ + __put_user_asm("swi", __pu_val, (ptr), (err)); \ break; \ case 8: \ - __put_user_asm_dword(__pu_val, __pu_addr, (err)); \ + __put_user_asm_dword(__pu_val, (ptr), (err)); \ break; \ default: \ BUILD_BUG(); \ From a18082575c664847d36c6ca030b09ce8d93aec2f Mon Sep 17 00:00:00 2001 From: Zong Li Date: Wed, 15 Aug 2018 10:45:59 +0800 Subject: [PATCH 0565/1762] nds32/ftrace: Support static function tracer This patch support the static function tracer. On nds32 ABI, we need to always push return address to stack for __builtin_return_address can work correctly, otherwise, it will get the wrong value of $lp at leaf function. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu --- arch/nds32/Kconfig | 1 + arch/nds32/Makefile | 4 ++++ arch/nds32/include/asm/ftrace.h | 20 ++++++++++++++++++++ arch/nds32/kernel/Makefile | 6 ++++++ arch/nds32/kernel/ftrace.c | 28 ++++++++++++++++++++++++++++ 5 files changed, 59 insertions(+) create mode 100644 arch/nds32/include/asm/ftrace.h create mode 100644 arch/nds32/kernel/ftrace.c diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig index 1d4248fa55e9..853497fe4266 100644 --- a/arch/nds32/Kconfig +++ b/arch/nds32/Kconfig @@ -40,6 +40,7 @@ config NDS32 select NO_IOPORT_MAP select RTC_LIB select THREAD_INFO_IN_TASK + select HAVE_FUNCTION_TRACER help Andes(nds32) Linux support. diff --git a/arch/nds32/Makefile b/arch/nds32/Makefile index 63f4f173e5f4..3509fac10491 100644 --- a/arch/nds32/Makefile +++ b/arch/nds32/Makefile @@ -5,6 +5,10 @@ KBUILD_DEFCONFIG := defconfig comma = , +ifdef CONFIG_FUNCTION_TRACER +arch-y += -malways-save-lp -mno-relax +endif + KBUILD_CFLAGS += $(call cc-option, -mno-sched-prolog-epilog) KBUILD_CFLAGS += -mcmodel=large diff --git a/arch/nds32/include/asm/ftrace.h b/arch/nds32/include/asm/ftrace.h new file mode 100644 index 000000000000..bac7657f576a --- /dev/null +++ b/arch/nds32/include/asm/ftrace.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_NDS32_FTRACE_H +#define __ASM_NDS32_FTRACE_H + +#ifdef CONFIG_FUNCTION_TRACER + +#define HAVE_FUNCTION_GRAPH_FP_TEST + +#define MCOUNT_ADDR ((unsigned long)(_mcount)) +/* mcount call is composed of three instructions: + * sethi + ori + jral + */ +#define MCOUNT_INSN_SIZE 12 + +extern void _mcount(unsigned long parent_ip); + +#endif /* CONFIG_FUNCTION_TRACER */ + +#endif /* __ASM_NDS32_FTRACE_H */ diff --git a/arch/nds32/kernel/Makefile b/arch/nds32/kernel/Makefile index 42792743e8b9..27cded39fa66 100644 --- a/arch/nds32/kernel/Makefile +++ b/arch/nds32/kernel/Makefile @@ -21,3 +21,9 @@ extra-y := head.o vmlinux.lds obj-y += vdso/ + +obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o + +ifdef CONFIG_FUNCTION_TRACER +CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE) +endif diff --git a/arch/nds32/kernel/ftrace.c b/arch/nds32/kernel/ftrace.c new file mode 100644 index 000000000000..563f64c070b3 --- /dev/null +++ b/arch/nds32/kernel/ftrace.c @@ -0,0 +1,28 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include + +extern void (*ftrace_trace_function)(unsigned long, unsigned long, + struct ftrace_ops*, struct pt_regs*); + +noinline void __naked ftrace_stub(unsigned long ip, unsigned long parent_ip, + struct ftrace_ops *op, struct pt_regs *regs) +{ + __asm__ (""); /* avoid to optimize as pure function */ +} + +noinline void _mcount(unsigned long parent_ip) +{ + /* save all state by the compiler prologue */ + + unsigned long ip = (unsigned long)__builtin_return_address(0); + + if (ftrace_trace_function != ftrace_stub) + ftrace_trace_function(ip - MCOUNT_INSN_SIZE, parent_ip, + NULL, NULL); + + /* restore all state by the compiler epilogue */ +} +EXPORT_SYMBOL(_mcount); From 1e9b14c0d92b61a0979fd5ee24d5e7f080f11030 Mon Sep 17 00:00:00 2001 From: Zong Li Date: Wed, 15 Aug 2018 10:53:04 +0800 Subject: [PATCH 0566/1762] nds32/ftrace: Support static function graph tracer This patch contains implementation of static function graph tracer. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu --- arch/nds32/Kconfig | 1 + arch/nds32/kernel/ftrace.c | 69 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 70 insertions(+) diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig index 853497fe4266..ea171a00327c 100644 --- a/arch/nds32/Kconfig +++ b/arch/nds32/Kconfig @@ -41,6 +41,7 @@ config NDS32 select RTC_LIB select THREAD_INFO_IN_TASK select HAVE_FUNCTION_TRACER + select HAVE_FUNCTION_GRAPH_TRACER help Andes(nds32) Linux support. diff --git a/arch/nds32/kernel/ftrace.c b/arch/nds32/kernel/ftrace.c index 563f64c070b3..707fce76522e 100644 --- a/arch/nds32/kernel/ftrace.c +++ b/arch/nds32/kernel/ftrace.c @@ -6,6 +6,8 @@ extern void (*ftrace_trace_function)(unsigned long, unsigned long, struct ftrace_ops*, struct pt_regs*); +extern int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace); +extern void ftrace_graph_caller(void); noinline void __naked ftrace_stub(unsigned long ip, unsigned long parent_ip, struct ftrace_ops *op, struct pt_regs *regs) @@ -23,6 +25,73 @@ noinline void _mcount(unsigned long parent_ip) ftrace_trace_function(ip - MCOUNT_INSN_SIZE, parent_ip, NULL, NULL); +#ifdef CONFIG_FUNCTION_GRAPH_TRACER + if (ftrace_graph_return != (trace_func_graph_ret_t)ftrace_stub + || ftrace_graph_entry != ftrace_graph_entry_stub) + ftrace_graph_caller(); +#endif + /* restore all state by the compiler epilogue */ } EXPORT_SYMBOL(_mcount); + +#ifdef CONFIG_FUNCTION_GRAPH_TRACER +void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr, + unsigned long frame_pointer) +{ + unsigned long return_hooker = (unsigned long)&return_to_handler; + struct ftrace_graph_ent trace; + unsigned long old; + int err; + + if (unlikely(atomic_read(¤t->tracing_graph_pause))) + return; + + old = *parent; + + trace.func = self_addr; + trace.depth = current->curr_ret_stack + 1; + + /* Only trace if the calling function expects to */ + if (!ftrace_graph_entry(&trace)) + return; + + err = ftrace_push_return_trace(old, self_addr, &trace.depth, + frame_pointer, NULL); + + if (err == -EBUSY) + return; + + *parent = return_hooker; +} + +noinline void ftrace_graph_caller(void) +{ + unsigned long *parent_ip = + (unsigned long *)(__builtin_frame_address(2) - 4); + + unsigned long selfpc = + (unsigned long)(__builtin_return_address(1) - MCOUNT_INSN_SIZE); + + unsigned long frame_pointer = + (unsigned long)__builtin_frame_address(3); + + prepare_ftrace_return(parent_ip, selfpc, frame_pointer); +} + +extern unsigned long ftrace_return_to_handler(unsigned long frame_pointer); +void __naked return_to_handler(void) +{ + __asm__ __volatile__ ( + /* save state needed by the ABI */ + "smw.adm $r0,[$sp],$r1,#0x0 \n\t" + + /* get original return address */ + "move $r0, $fp \n\t" + "bal ftrace_return_to_handler\n\t" + "move $lp, $r0 \n\t" + + /* restore state nedded by the ABI */ + "lmw.bim $r0,[$sp],$r1,#0x0 \n\t"); +} +#endif /* CONFIG_FUNCTION_GRAPH_TRACER */ From fbf58a52ac088669dfa930e557d0303a9fbb7e17 Mon Sep 17 00:00:00 2001 From: Zong Li Date: Wed, 15 Aug 2018 10:57:16 +0800 Subject: [PATCH 0567/1762] nds32/ftrace: Add RECORD_MCOUNT support Recognize NDS32 object files in recordmcount.pl. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu --- arch/nds32/Kconfig | 1 + scripts/recordmcount.pl | 3 +++ 2 files changed, 4 insertions(+) diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig index ea171a00327c..48d92171ea20 100644 --- a/arch/nds32/Kconfig +++ b/arch/nds32/Kconfig @@ -42,6 +42,7 @@ config NDS32 select THREAD_INFO_IN_TASK select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_GRAPH_TRACER + select HAVE_FTRACE_MCOUNT_RECORD help Andes(nds32) Linux support. diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl index fe06e77c15eb..f599031260d5 100755 --- a/scripts/recordmcount.pl +++ b/scripts/recordmcount.pl @@ -389,6 +389,9 @@ if ($arch eq "x86_64") { $mcount_regex = "^\\s*([0-9a-fA-F]+):\\sR_RISCV_CALL\\s_mcount\$"; $type = ".quad"; $alignment = 2; +} elsif ($arch eq "nds32") { + $mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*R_NDS32_HI20_RELA\\s+_mcount\$"; + $alignment = 2; } else { die "Arch $arch is not supported with CONFIG_FTRACE_MCOUNT_RECORD"; } From 6b1d6d2fba37129f690ee7e9164f225c55626cac Mon Sep 17 00:00:00 2001 From: Zong Li Date: Wed, 15 Aug 2018 11:00:08 +0800 Subject: [PATCH 0568/1762] nds32/ftrace: Support dynamic function tracer This patch contains the implementation of dynamic function tracer. The mcount call is composed of three instructions, so there are three nop for enough placeholder. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu --- arch/nds32/Kconfig | 1 + arch/nds32/include/asm/ftrace.h | 26 +++++ arch/nds32/kernel/ftrace.c | 164 ++++++++++++++++++++++++++++++++ 3 files changed, 191 insertions(+) diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig index 48d92171ea20..7068f341133d 100644 --- a/arch/nds32/Kconfig +++ b/arch/nds32/Kconfig @@ -43,6 +43,7 @@ config NDS32 select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FTRACE_MCOUNT_RECORD + select HAVE_DYNAMIC_FTRACE help Andes(nds32) Linux support. diff --git a/arch/nds32/include/asm/ftrace.h b/arch/nds32/include/asm/ftrace.h index bac7657f576a..2f96cc96aa35 100644 --- a/arch/nds32/include/asm/ftrace.h +++ b/arch/nds32/include/asm/ftrace.h @@ -15,6 +15,32 @@ extern void _mcount(unsigned long parent_ip); +#ifdef CONFIG_DYNAMIC_FTRACE + +#define FTRACE_ADDR ((unsigned long)_ftrace_caller) + +#ifdef __NDS32_EL__ +#define INSN_NOP 0x09000040 +#define INSN_SIZE(insn) (((insn & 0x00000080) == 0) ? 4 : 2) +#define IS_SETHI(insn) ((insn & 0x000000fe) == 0x00000046) +#define ENDIAN_CONVERT(insn) be32_to_cpu(insn) +#else /* __NDS32_EB__ */ +#define INSN_NOP 0x40000009 +#define INSN_SIZE(insn) (((insn & 0x80000000) == 0) ? 4 : 2) +#define IS_SETHI(insn) ((insn & 0xfe000000) == 0x46000000) +#define ENDIAN_CONVERT(insn) (insn) +#endif + +extern void _ftrace_caller(unsigned long parent_ip); +static inline unsigned long ftrace_call_adjust(unsigned long addr) +{ + return addr; +} +struct dyn_arch_ftrace { +}; + +#endif /* CONFIG_DYNAMIC_FTRACE */ + #endif /* CONFIG_FUNCTION_TRACER */ #endif /* __ASM_NDS32_FTRACE_H */ diff --git a/arch/nds32/kernel/ftrace.c b/arch/nds32/kernel/ftrace.c index 707fce76522e..3ca676b75d97 100644 --- a/arch/nds32/kernel/ftrace.c +++ b/arch/nds32/kernel/ftrace.c @@ -4,6 +4,7 @@ #include #include +#ifndef CONFIG_DYNAMIC_FTRACE extern void (*ftrace_trace_function)(unsigned long, unsigned long, struct ftrace_ops*, struct pt_regs*); extern int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace); @@ -35,6 +36,168 @@ noinline void _mcount(unsigned long parent_ip) } EXPORT_SYMBOL(_mcount); +#else /* CONFIG_DYNAMIC_FTRACE */ + +noinline void __naked ftrace_stub(unsigned long ip, unsigned long parent_ip, + struct ftrace_ops *op, struct pt_regs *regs) +{ + __asm__ (""); /* avoid to optimize as pure function */ +} + +noinline void __naked _mcount(unsigned long parent_ip) +{ + __asm__ (""); /* avoid to optimize as pure function */ +} +EXPORT_SYMBOL(_mcount); + +#define XSTR(s) STR(s) +#define STR(s) #s +void _ftrace_caller(unsigned long parent_ip) +{ + /* save all state needed by the compiler prologue */ + + /* + * prepare arguments for real tracing function + * first arg : __builtin_return_address(0) - MCOUNT_INSN_SIZE + * second arg : parent_ip + */ + __asm__ __volatile__ ( + "move $r1, %0 \n\t" + "addi $r0, %1, #-" XSTR(MCOUNT_INSN_SIZE) "\n\t" + : + : "r" (parent_ip), "r" (__builtin_return_address(0))); + + /* a placeholder for the call to a real tracing function */ + __asm__ __volatile__ ( + "ftrace_call: \n\t" + "nop \n\t" + "nop \n\t" + "nop \n\t"); + + /* restore all state needed by the compiler epilogue */ +} + +int __init ftrace_dyn_arch_init(void) +{ + return 0; +} + +int ftrace_arch_code_modify_prepare(void) +{ + set_all_modules_text_rw(); + return 0; +} + +int ftrace_arch_code_modify_post_process(void) +{ + set_all_modules_text_ro(); + return 0; +} + +static unsigned long gen_sethi_insn(unsigned long addr) +{ + unsigned long opcode = 0x46000000; + unsigned long imm = addr >> 12; + unsigned long rt_num = 0xf << 20; + + return ENDIAN_CONVERT(opcode | rt_num | imm); +} + +static unsigned long gen_ori_insn(unsigned long addr) +{ + unsigned long opcode = 0x58000000; + unsigned long imm = addr & 0x0000fff; + unsigned long rt_num = 0xf << 20; + unsigned long ra_num = 0xf << 15; + + return ENDIAN_CONVERT(opcode | rt_num | ra_num | imm); +} + +static unsigned long gen_jral_insn(unsigned long addr) +{ + unsigned long opcode = 0x4a000001; + unsigned long rt_num = 0x1e << 20; + unsigned long rb_num = 0xf << 10; + + return ENDIAN_CONVERT(opcode | rt_num | rb_num); +} + +static void ftrace_gen_call_insn(unsigned long *call_insns, + unsigned long addr) +{ + call_insns[0] = gen_sethi_insn(addr); /* sethi $r15, imm20u */ + call_insns[1] = gen_ori_insn(addr); /* ori $r15, $r15, imm15u */ + call_insns[2] = gen_jral_insn(addr); /* jral $lp, $r15 */ +} + +static int __ftrace_modify_code(unsigned long pc, unsigned long *old_insn, + unsigned long *new_insn, bool validate) +{ + unsigned long orig_insn[3]; + + if (validate) { + if (probe_kernel_read(orig_insn, (void *)pc, MCOUNT_INSN_SIZE)) + return -EFAULT; + if (memcmp(orig_insn, old_insn, MCOUNT_INSN_SIZE)) + return -EINVAL; + } + + if (probe_kernel_write((void *)pc, new_insn, MCOUNT_INSN_SIZE)) + return -EPERM; + + return 0; +} + +static int ftrace_modify_code(unsigned long pc, unsigned long *old_insn, + unsigned long *new_insn, bool validate) +{ + int ret; + + ret = __ftrace_modify_code(pc, old_insn, new_insn, validate); + if (ret) + return ret; + + flush_icache_range(pc, pc + MCOUNT_INSN_SIZE); + + return ret; +} + +int ftrace_update_ftrace_func(ftrace_func_t func) +{ + unsigned long pc = (unsigned long)&ftrace_call; + unsigned long old_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP}; + unsigned long new_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP}; + + if (func != ftrace_stub) + ftrace_gen_call_insn(new_insn, (unsigned long)func); + + return ftrace_modify_code(pc, old_insn, new_insn, false); +} + +int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) +{ + unsigned long pc = rec->ip; + unsigned long nop_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP}; + unsigned long call_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP}; + + ftrace_gen_call_insn(call_insn, addr); + + return ftrace_modify_code(pc, nop_insn, call_insn, true); +} + +int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec, + unsigned long addr) +{ + unsigned long pc = rec->ip; + unsigned long nop_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP}; + unsigned long call_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP}; + + ftrace_gen_call_insn(call_insn, addr); + + return ftrace_modify_code(pc, call_insn, nop_insn, true); +} +#endif /* CONFIG_DYNAMIC_FTRACE */ + #ifdef CONFIG_FUNCTION_GRAPH_TRACER void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr, unsigned long frame_pointer) @@ -94,4 +257,5 @@ void __naked return_to_handler(void) /* restore state nedded by the ABI */ "lmw.bim $r0,[$sp],$r1,#0x0 \n\t"); } + #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ From 95cd2f7bce9aa712473bba1b5b3f4fdec148baee Mon Sep 17 00:00:00 2001 From: Zong Li Date: Wed, 15 Aug 2018 11:01:10 +0800 Subject: [PATCH 0569/1762] nds32/ftrace: Support dynamic function graph tracer This patch contains the implementation of dynamic function graph tracer. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu --- arch/nds32/kernel/ftrace.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/arch/nds32/kernel/ftrace.c b/arch/nds32/kernel/ftrace.c index 3ca676b75d97..a646a8339052 100644 --- a/arch/nds32/kernel/ftrace.c +++ b/arch/nds32/kernel/ftrace.c @@ -74,6 +74,14 @@ void _ftrace_caller(unsigned long parent_ip) "nop \n\t" "nop \n\t"); +#ifdef CONFIG_FUNCTION_GRAPH_TRACER + /* a placeholder for the call to ftrace_graph_caller */ + __asm__ __volatile__ ( + "ftrace_graph_call: \n\t" + "nop \n\t" + "nop \n\t" + "nop \n\t"); +#endif /* restore all state needed by the compiler epilogue */ } @@ -258,4 +266,32 @@ void __naked return_to_handler(void) "lmw.bim $r0,[$sp],$r1,#0x0 \n\t"); } +#ifdef CONFIG_DYNAMIC_FTRACE +extern unsigned long ftrace_graph_call; + +static int ftrace_modify_graph_caller(bool enable) +{ + unsigned long pc = (unsigned long)&ftrace_graph_call; + unsigned long nop_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP}; + unsigned long call_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP}; + + ftrace_gen_call_insn(call_insn, (unsigned long)ftrace_graph_caller); + + if (enable) + return ftrace_modify_code(pc, nop_insn, call_insn, true); + else + return ftrace_modify_code(pc, call_insn, nop_insn, true); +} + +int ftrace_enable_ftrace_graph_caller(void) +{ + return ftrace_modify_graph_caller(true); +} + +int ftrace_disable_ftrace_graph_caller(void) +{ + return ftrace_modify_graph_caller(false); +} +#endif /* CONFIG_DYNAMIC_FTRACE */ + #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ From 1e377ae9b04aef4dc531fa4c5f81b65d440ebcba Mon Sep 17 00:00:00 2001 From: Zong Li Date: Wed, 15 Aug 2018 11:05:40 +0800 Subject: [PATCH 0570/1762] nds32/stack: Get real return address by using ftrace_graph_ret_addr Function graph tracer has modified the return address to 'return_to_handler' on stack, and provide the 'ftrace_graph_ret_addr' to get the real return address. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu --- arch/nds32/kernel/stacktrace.c | 4 ++++ arch/nds32/kernel/traps.c | 30 ++++++------------------------ 2 files changed, 10 insertions(+), 24 deletions(-) diff --git a/arch/nds32/kernel/stacktrace.c b/arch/nds32/kernel/stacktrace.c index 8b231e910ea6..36bc87003e83 100644 --- a/arch/nds32/kernel/stacktrace.c +++ b/arch/nds32/kernel/stacktrace.c @@ -4,6 +4,7 @@ #include #include #include +#include void save_stack_trace(struct stack_trace *trace) { @@ -16,6 +17,7 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) unsigned long *fpn; int skip = trace->skip; int savesched; + int graph_idx = 0; if (tsk == current) { __asm__ __volatile__("\tori\t%0, $fp, #0\n":"=r"(fpn)); @@ -33,6 +35,8 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) fpp = fpn[FP_OFFSET]; if (!__kernel_text_address(lpp)) break; + else + lpp = ftrace_graph_ret_addr(tsk, &graph_idx, lpp, NULL); if (savesched || !in_sched_functions(lpp)) { if (skip) { diff --git a/arch/nds32/kernel/traps.c b/arch/nds32/kernel/traps.c index f0e974347c26..7684c8f597ed 100644 --- a/arch/nds32/kernel/traps.c +++ b/arch/nds32/kernel/traps.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include @@ -94,28 +95,6 @@ static void dump_instr(struct pt_regs *regs) set_fs(fs); } -#ifdef CONFIG_FUNCTION_GRAPH_TRACER -#include -static void -get_real_ret_addr(unsigned long *addr, struct task_struct *tsk, int *graph) -{ - if (*addr == (unsigned long)return_to_handler) { - int index = tsk->curr_ret_stack; - - if (tsk->ret_stack && index >= *graph) { - index -= *graph; - *addr = tsk->ret_stack[index].ret; - (*graph)++; - } - } -} -#else -static inline void -get_real_ret_addr(unsigned long *addr, struct task_struct *tsk, int *graph) -{ -} -#endif - #define LOOP_TIMES (100) static void __dump(struct task_struct *tsk, unsigned long *base_reg) { @@ -126,7 +105,8 @@ static void __dump(struct task_struct *tsk, unsigned long *base_reg) while (!kstack_end(base_reg)) { ret_addr = *base_reg++; if (__kernel_text_address(ret_addr)) { - get_real_ret_addr(&ret_addr, tsk, &graph); + ret_addr = ftrace_graph_ret_addr( + tsk, &graph, ret_addr, NULL); print_ip_sym(ret_addr); } if (--cnt < 0) @@ -145,7 +125,9 @@ static void __dump(struct task_struct *tsk, unsigned long *base_reg) next_fp = base_reg[FP_OFFSET]; #endif if (__kernel_text_address(ret_addr)) { - get_real_ret_addr(&ret_addr, tsk, &graph); + + ret_addr = ftrace_graph_ret_addr( + tsk, &graph, ret_addr, NULL); print_ip_sym(ret_addr); } if (--cnt < 0) From c5fdf7e00d490dc094a97d287e0fa27e253cca84 Mon Sep 17 00:00:00 2001 From: Zong Li Date: Mon, 20 Aug 2018 09:40:08 +0800 Subject: [PATCH 0571/1762] nds32: Remove the deprecated ABI implementation We are not using NDS32 ABI 2 for now, just remove the preprocessor directives __NDS32_ABI_2. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu --- arch/nds32/kernel/traps.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/nds32/kernel/traps.c b/arch/nds32/kernel/traps.c index 7684c8f597ed..f432310f3d02 100644 --- a/arch/nds32/kernel/traps.c +++ b/arch/nds32/kernel/traps.c @@ -117,13 +117,8 @@ static void __dump(struct task_struct *tsk, unsigned long *base_reg) !((unsigned long)base_reg & 0x3) && ((unsigned long)base_reg >= TASK_SIZE)) { unsigned long next_fp; -#if !defined(__NDS32_ABI_2) - ret_addr = base_reg[0]; - next_fp = base_reg[1]; -#else ret_addr = base_reg[-1]; next_fp = base_reg[FP_OFFSET]; -#endif if (__kernel_text_address(ret_addr)) { ret_addr = ftrace_graph_ret_addr( From 95f93ed7fe92c16f5346e477491d91e4fa8e92b8 Mon Sep 17 00:00:00 2001 From: Zong Li Date: Mon, 20 Aug 2018 09:51:29 +0800 Subject: [PATCH 0572/1762] nds32: Add macro definition for offset of lp register on stack Use macro to replace the magic number. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu --- arch/nds32/include/asm/nds32.h | 1 + arch/nds32/kernel/stacktrace.c | 2 +- arch/nds32/kernel/traps.c | 2 +- 3 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/nds32/include/asm/nds32.h b/arch/nds32/include/asm/nds32.h index 19b19394a936..68c38151c3e4 100644 --- a/arch/nds32/include/asm/nds32.h +++ b/arch/nds32/include/asm/nds32.h @@ -17,6 +17,7 @@ #else #define FP_OFFSET (-2) #endif +#define LP_OFFSET (-1) extern void __init early_trap_init(void); static inline void GIE_ENABLE(void) diff --git a/arch/nds32/kernel/stacktrace.c b/arch/nds32/kernel/stacktrace.c index 36bc87003e83..d974c0c1c65f 100644 --- a/arch/nds32/kernel/stacktrace.c +++ b/arch/nds32/kernel/stacktrace.c @@ -31,7 +31,7 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) && (fpn >= (unsigned long *)TASK_SIZE)) { unsigned long lpp, fpp; - lpp = fpn[-1]; + lpp = fpn[LP_OFFSET]; fpp = fpn[FP_OFFSET]; if (!__kernel_text_address(lpp)) break; diff --git a/arch/nds32/kernel/traps.c b/arch/nds32/kernel/traps.c index f432310f3d02..b0b85b7ab079 100644 --- a/arch/nds32/kernel/traps.c +++ b/arch/nds32/kernel/traps.c @@ -117,7 +117,7 @@ static void __dump(struct task_struct *tsk, unsigned long *base_reg) !((unsigned long)base_reg & 0x3) && ((unsigned long)base_reg >= TASK_SIZE)) { unsigned long next_fp; - ret_addr = base_reg[-1]; + ret_addr = base_reg[LP_OFFSET]; next_fp = base_reg[FP_OFFSET]; if (__kernel_text_address(ret_addr)) { From 487c4b2323b26cfb5fd4d77d3605a92c182b6288 Mon Sep 17 00:00:00 2001 From: Greentime Hu Date: Thu, 23 Aug 2018 14:47:43 +0800 Subject: [PATCH 0573/1762] nds32: Only print one page of stack when die to prevent printing too much information. It may print too much information sometimes if the stack is wrong or too big. This patch can limit the debug information in a page of stack. Signed-off-by: Greentime Hu --- arch/nds32/kernel/traps.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/nds32/kernel/traps.c b/arch/nds32/kernel/traps.c index b0b85b7ab079..1496aab48998 100644 --- a/arch/nds32/kernel/traps.c +++ b/arch/nds32/kernel/traps.c @@ -173,11 +173,10 @@ void die(const char *str, struct pt_regs *regs, int err) pr_emerg("CPU: %i\n", smp_processor_id()); show_regs(regs); pr_emerg("Process %s (pid: %d, stack limit = 0x%p)\n", - tsk->comm, tsk->pid, task_thread_info(tsk) + 1); + tsk->comm, tsk->pid, end_of_stack(tsk)); if (!user_mode(regs) || in_interrupt()) { - dump_mem("Stack: ", regs->sp, - THREAD_SIZE + (unsigned long)task_thread_info(tsk)); + dump_mem("Stack: ", regs->sp, (regs->sp + PAGE_SIZE) & PAGE_MASK); dump_instr(regs); dump_stack(); } From 0cde56e0280d70ce26b54d22131944c2fe584b38 Mon Sep 17 00:00:00 2001 From: Greentime Hu Date: Thu, 23 Aug 2018 15:05:46 +0800 Subject: [PATCH 0574/1762] nds32: Fix a kernel panic issue because of wrong frame pointer access. It can make sure that trace_hardirqs_off/trace_hardirqs_on can get a correct return address by frame pointer through __builtin_return_address() in this fix. Unable to handle kernel paging request at virtual address fffffffc pgd = 3c42e9cf [fffffffc] *pgd=02a9c000 Internal error: Oops: 1 [#1] Modules linked in: CPU: 0 PC is at trace_hardirqs_off+0x78/0xec LP is at common_exception_handler+0xda/0xf4 pc : [] lp : [] Tainted: G W sp : ada60ab0 fp : efcaff48 gp : 3a020490 r25: efcb0000 r24: 00000000 r23: 00000000 r22: 00000000 r21: 00000000 r20: 000700c1 r19: 000700ca r18: 3a21b018 r17: 00000001 r16: 00000002 r15: 00000001 r14: 0000002a r13: 3a00a804 r12: ada60ab0 r11: 3a113af8 r10: 3a01c530 r9 : 3a124404 r8 : 00120f9c r7 : b2352eba r6 : 00000000 r5 : 3a126b58 r4 : 00000000 r3 : 3a1726a8 r2 : b2921000 r1 : 00000000 r0 : 00000000 IRQs off Segment user Process init (pid: 1, stack limit = 0x069d7f15) Stack: (0xada60ab0 to 0xada61000) Stack: 0aa0: 00000000 00000003 3a110000 0011f000 Stack: 0ac0: 00000005 00000000 00000000 00000000 ada60b10 3a01fe68 ada60b0c ada60b08 Stack: 0ae0: 00000000 ada60ab8 ada60b30 3a020550 00000000 00000001 3a11c2f8 3a01c6e8 Stack: 0b00: 3a01cb80 fffffba8 3a113af8 3a21b018 3a122c28 00003ec4 00000165 00000000 Stack: 0b20: 3a126aec 0000006c 00000000 00000001 3a01fe68 00000000 00000003 00000000 Stack: 0b40: 00000001 000003f8 3a020930 3a01c530 00000008 ada60c18 3a020490 3a003120 Stack: 0b60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Stack: 0b80: 00000000 00000000 00000000 00000000 ffff8000 00000000 00000000 00000000 Stack: 0ba0: 00000000 00000001 3a020550 00000000 3a01d020 00000000 fffff000 fffff000 Stack: 0bc0: 00000000 00000000 00000000 00000000 ada60f2c 00000000 00000001 00000000 Stack: 0be0: 00000000 00000000 3a01fe68 fffffab0 00008034 00000008 3a0010cc 3a01fe68 Stack: 0c00: 00000000 00000000 00000001 ada60c88 3a020490 3a0139d4 0009dc6f 00000000 Stack: 0c20: 00000000 00000000 ada60fce fffff000 00000000 0000ebe0 3a020038 3a020550 Stack: 0c40: ada60f20 ada60c90 3a0007f0 3a0002a8 ada60c8c 00000000 00000000 ada60c88 Stack: 0c60: 3a020490 3a004570 00000000 00000000 ada60f20 3a0007f0 3a000000 00000000 Stack: 0c80: 3a020490 3a004850 00000000 3a013f24 3a000000 00000000 3a01ff44 00000000 Stack: 0ca0: 00000000 00000000 00000000 00000000 00000000 00000000 3a01ff84 3a01ff7c Stack: 0cc0: 3a01ff4c 3a01ff5c 3a01ff64 3a01ff9c 3a01ffa4 3a01ffac 3a01ff6c 3a01ff74 Stack: 0ce0: 00000000 00000000 3a01ff44 00000000 00000000 00000000 00000000 00000000 Stack: 0d00: 3a01ff8c 00000000 00000000 3a01ff94 00000000 00000000 00000000 00000000 Stack: 0d20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Stack: 0d40: 3a01ffbc 3a01ffb4 00000000 00000000 00000000 00000000 00000000 00000000 Stack: 0d60: 00000000 00000000 00000000 00000000 00000000 3a01ffc4 00000000 00000000 Stack: 0d80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Stack: 0da0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Stack: 0dc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3a01ff54 Stack: 0de0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Stack: 0e00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Stack: 0e20: 00000000 00000004 00000000 00000000 00000000 00000000 00000000 00000000 Stack: 0e40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Stack: 0e60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Stack: 0e80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Stack: 0ea0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Stack: 0ec0: 00000000 00000000 00000000 00000000 ffffffff 00000000 00000000 00000000 Stack: 0ee0: 00000000 00000000 00000000 00000000 ada60f20 00000000 00000000 00000000 Stack: 0f00: 00000000 00000000 00000000 00000000 00000000 00000000 3a020490 3a000b24 Stack: 0f20: 00000001 ada60fde 00000000 ada60fe4 ada60feb 00000000 00000021 3a038000 Stack: 0f40: 00000010 0009dc6f 00000006 00001000 00000011 00000064 00000003 00008034 Stack: 0f60: 00000004 00000020 00000005 00000008 00000007 3a000000 00000008 00000000 Stack: 0f80: 00000009 0000ebe0 0000000b 00000000 0000000c 00000000 0000000d 00000000 Stack: 0fa0: 0000000e 00000000 00000017 00000000 00000019 ada60fce 0000001f ada60ff6 Stack: 0fc0: 00000000 00000000 00000000 b5010000 fa839914 23b5dd89 a2aea540 692fc82e Stack: 0fe0: 0074696e 454d4f48 54002f3d 3d4d5245 756e696c 692f0078 0074696e 00000000 CPU: 0 PID: 1 Comm: init Tainted: G W 4.18.0-00015-g1888b64a2558-dirty #112 Hardware name: andestech,ae3xx (DT) Call Trace: [] dump_stack+0x2c/0x38 [] die+0x128/0x18c [] do_page_fault+0x3b8/0x4e0 [] ret_from_exception+0x0/0x10 [] common_exception_handler+0xda/0xf4 Signed-off-by: Greentime Hu --- arch/nds32/kernel/ex-entry.S | 2 +- arch/nds32/kernel/ex-exit.S | 4 ++-- arch/nds32/kernel/ftrace.c | 12 ++++++++++++ 3 files changed, 15 insertions(+), 3 deletions(-) diff --git a/arch/nds32/kernel/ex-entry.S b/arch/nds32/kernel/ex-entry.S index b8ae4e9a6b93..21a144071566 100644 --- a/arch/nds32/kernel/ex-entry.S +++ b/arch/nds32/kernel/ex-entry.S @@ -118,7 +118,7 @@ common_exception_handler: /* interrupt */ 2: #ifdef CONFIG_TRACE_IRQFLAGS - jal trace_hardirqs_off + jal __trace_hardirqs_off #endif move $r0, $sp sethi $lp, hi20(ret_from_intr) diff --git a/arch/nds32/kernel/ex-exit.S b/arch/nds32/kernel/ex-exit.S index 03e4f7788a18..f00af92f7e22 100644 --- a/arch/nds32/kernel/ex-exit.S +++ b/arch/nds32/kernel/ex-exit.S @@ -138,8 +138,8 @@ no_work_pending: #ifdef CONFIG_TRACE_IRQFLAGS lwi $p0, [$sp+(#IPSW_OFFSET)] andi $p0, $p0, #0x1 - la $r10, trace_hardirqs_off - la $r9, trace_hardirqs_on + la $r10, __trace_hardirqs_off + la $r9, __trace_hardirqs_on cmovz $r9, $p0, $r10 jral $r9 #endif diff --git a/arch/nds32/kernel/ftrace.c b/arch/nds32/kernel/ftrace.c index a646a8339052..a0a9679ad5de 100644 --- a/arch/nds32/kernel/ftrace.c +++ b/arch/nds32/kernel/ftrace.c @@ -295,3 +295,15 @@ int ftrace_disable_ftrace_graph_caller(void) #endif /* CONFIG_DYNAMIC_FTRACE */ #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ + + +#ifdef CONFIG_TRACE_IRQFLAGS +noinline void __trace_hardirqs_off(void) +{ + trace_hardirqs_off(); +} +noinline void __trace_hardirqs_on(void) +{ + trace_hardirqs_on(); +} +#endif /* CONFIG_TRACE_IRQFLAGS */ From ec865393292f5ad8d52da20788b3685ebce44c48 Mon Sep 17 00:00:00 2001 From: Greentime Hu Date: Tue, 28 Aug 2018 16:07:39 +0800 Subject: [PATCH 0575/1762] nds32: fix build error because of wrong semicolon It shall be removed in the define usage. We shall not put a semicolon there. /kisskb/src/arch/nds32/include/asm/elf.h:126:29: error: expected '}' before ';' token #define ELF_DATA ELFDATA2LSB; ^ /kisskb/src/fs/proc/kcore.c:318:17: note: in expansion of macro 'ELF_DATA' [EI_DATA] = ELF_DATA, ^~~~~~~~ /kisskb/src/fs/proc/kcore.c:312:15: note: to match this '{' .e_ident = { ^ /kisskb/src/scripts/Makefile.build:307: recipe for target 'fs/proc/kcore.o' failed Signed-off-by: Greentime Hu --- arch/nds32/include/asm/elf.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/nds32/include/asm/elf.h b/arch/nds32/include/asm/elf.h index 56c479058802..f5f9cf7e0544 100644 --- a/arch/nds32/include/asm/elf.h +++ b/arch/nds32/include/asm/elf.h @@ -121,9 +121,9 @@ struct elf32_hdr; */ #define ELF_CLASS ELFCLASS32 #ifdef __NDS32_EB__ -#define ELF_DATA ELFDATA2MSB; +#define ELF_DATA ELFDATA2MSB #else -#define ELF_DATA ELFDATA2LSB; +#define ELF_DATA ELFDATA2LSB #endif #define ELF_ARCH EM_NDS32 #define USE_ELF_CORE_DUMP From 0a1b60d76b0abcc2a0de4eb96d5dd379cd855f30 Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Fri, 31 Aug 2018 10:58:52 +0800 Subject: [PATCH 0576/1762] drm/i915/gvt: Fix life cycle reference on KVM mm Handle guest mm access life cycle properly with mmget()/mmput(). As noted by Linus, use_mm() depends on valid live page table but KVM's mmgrab() doesn't guarantee that. As vGPU usage depends on guest VM life cycle, need to make sure to use mmget()/mmput() to guarantee VM address access. v3: fix build v2: v1 caused a weird dependence issue which failed for vfio device release, which result invalid mdev vgpu and kvm state without proper release taken. This trys to put right reference around VM address space access instead. Cc: Linus Torvalds Cc: Paolo Bonzini Cc: Zhi Wang Reviewed-by: Zhi Wang Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/kvmgt.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index a45f46d8537f..c7afee37b2b8 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include #include @@ -1792,16 +1793,21 @@ static int kvmgt_rw_gpa(unsigned long handle, unsigned long gpa, info = (struct kvmgt_guest_info *)handle; kvm = info->kvm; - if (kthread) + if (kthread) { + if (!mmget_not_zero(kvm->mm)) + return -EFAULT; use_mm(kvm->mm); + } idx = srcu_read_lock(&kvm->srcu); ret = write ? kvm_write_guest(kvm, gpa, buf, len) : kvm_read_guest(kvm, gpa, buf, len); srcu_read_unlock(&kvm->srcu, idx); - if (kthread) + if (kthread) { unuse_mm(kvm->mm); + mmput(kvm->mm); + } return ret; } From bfc0698bebcb16d19ecfc89574ad4d696955e5d3 Mon Sep 17 00:00:00 2001 From: Sowmini Varadhan Date: Mon, 3 Sep 2018 04:36:52 -0700 Subject: [PATCH 0577/1762] xfrm: reset transport header back to network header after all input transforms ahave been applied A policy may have been set up with multiple transforms (e.g., ESP and ipcomp). In this situation, the ingress IPsec processing iterates in xfrm_input() and applies each transform in turn, processing the nexthdr to find any additional xfrm that may apply. This patch resets the transport header back to network header only after the last transformation so that subsequent xfrms can find the correct transport header. Fixes: 7785bba299a8 ("esp: Add a software GRO codepath") Suggested-by: Steffen Klassert Signed-off-by: Sowmini Varadhan Signed-off-by: Steffen Klassert --- net/ipv4/xfrm4_input.c | 1 + net/ipv4/xfrm4_mode_transport.c | 4 +--- net/ipv6/xfrm6_input.c | 1 + net/ipv6/xfrm6_mode_transport.c | 4 +--- 4 files changed, 4 insertions(+), 6 deletions(-) diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c index bcfc00e88756..f8de2482a529 100644 --- a/net/ipv4/xfrm4_input.c +++ b/net/ipv4/xfrm4_input.c @@ -67,6 +67,7 @@ int xfrm4_transport_finish(struct sk_buff *skb, int async) if (xo && (xo->flags & XFRM_GRO)) { skb_mac_header_rebuild(skb); + skb_reset_transport_header(skb); return 0; } diff --git a/net/ipv4/xfrm4_mode_transport.c b/net/ipv4/xfrm4_mode_transport.c index 3d36644890bb..1ad2c2c4e250 100644 --- a/net/ipv4/xfrm4_mode_transport.c +++ b/net/ipv4/xfrm4_mode_transport.c @@ -46,7 +46,6 @@ static int xfrm4_transport_output(struct xfrm_state *x, struct sk_buff *skb) static int xfrm4_transport_input(struct xfrm_state *x, struct sk_buff *skb) { int ihl = skb->data - skb_transport_header(skb); - struct xfrm_offload *xo = xfrm_offload(skb); if (skb->transport_header != skb->network_header) { memmove(skb_transport_header(skb), @@ -54,8 +53,7 @@ static int xfrm4_transport_input(struct xfrm_state *x, struct sk_buff *skb) skb->network_header = skb->transport_header; } ip_hdr(skb)->tot_len = htons(skb->len + ihl); - if (!xo || !(xo->flags & XFRM_GRO)) - skb_reset_transport_header(skb); + skb_reset_transport_header(skb); return 0; } diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c index 841f4a07438e..9ef490dddcea 100644 --- a/net/ipv6/xfrm6_input.c +++ b/net/ipv6/xfrm6_input.c @@ -59,6 +59,7 @@ int xfrm6_transport_finish(struct sk_buff *skb, int async) if (xo && (xo->flags & XFRM_GRO)) { skb_mac_header_rebuild(skb); + skb_reset_transport_header(skb); return -1; } diff --git a/net/ipv6/xfrm6_mode_transport.c b/net/ipv6/xfrm6_mode_transport.c index 9ad07a91708e..3c29da5defe6 100644 --- a/net/ipv6/xfrm6_mode_transport.c +++ b/net/ipv6/xfrm6_mode_transport.c @@ -51,7 +51,6 @@ static int xfrm6_transport_output(struct xfrm_state *x, struct sk_buff *skb) static int xfrm6_transport_input(struct xfrm_state *x, struct sk_buff *skb) { int ihl = skb->data - skb_transport_header(skb); - struct xfrm_offload *xo = xfrm_offload(skb); if (skb->transport_header != skb->network_header) { memmove(skb_transport_header(skb), @@ -60,8 +59,7 @@ static int xfrm6_transport_input(struct xfrm_state *x, struct sk_buff *skb) } ipv6_hdr(skb)->payload_len = htons(skb->len + ihl - sizeof(struct ipv6hdr)); - if (!xo || !(xo->flags & XFRM_GRO)) - skb_reset_transport_header(skb); + skb_reset_transport_header(skb); return 0; } From 782710e333a526780d65918d669cb96646983ba2 Mon Sep 17 00:00:00 2001 From: Sowmini Varadhan Date: Mon, 3 Sep 2018 04:36:53 -0700 Subject: [PATCH 0578/1762] xfrm: reset crypto_done when iterating over multiple input xfrms We only support one offloaded xfrm (we do not have devices that can handle more than one offload), so reset crypto_done in xfrm_input() when iterating over multiple transforms in xfrm_input, so that we can invoke the appropriate x->type->input for the non-offloaded transforms Fixes: d77e38e612a0 ("xfrm: Add an IPsec hardware offloading API") Signed-off-by: Sowmini Varadhan Signed-off-by: Steffen Klassert --- net/xfrm/xfrm_input.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c index 352abca2605f..86f5afbd0a0c 100644 --- a/net/xfrm/xfrm_input.c +++ b/net/xfrm/xfrm_input.c @@ -453,6 +453,7 @@ resume: XFRM_INC_STATS(net, LINUX_MIB_XFRMINHDRERROR); goto drop; } + crypto_done = false; } while (!err); err = xfrm_rcv_cb(skb, family, x->type->proto, 0); From b81126e01a8c6048249955feea46c8217ebefa91 Mon Sep 17 00:00:00 2001 From: Ingo Franzki Date: Mon, 27 Aug 2018 14:28:47 +0200 Subject: [PATCH 0579/1762] s390/crypto: Fix return code checking in cbc_paes_crypt() The return code of cpacf_kmc() is less than the number of bytes to process in case of an error, not greater. The crypt routines for the other cipher modes already have this correctly. Cc: stable@vger.kernel.org # v4.11+ Fixes: 279378430768 ("s390/crypt: Add protected key AES module") Signed-off-by: Ingo Franzki Acked-by: Harald Freudenberger Signed-off-by: Martin Schwidefsky --- arch/s390/crypto/paes_s390.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/s390/crypto/paes_s390.c b/arch/s390/crypto/paes_s390.c index 80b27294c1de..ab9a0ebecc19 100644 --- a/arch/s390/crypto/paes_s390.c +++ b/arch/s390/crypto/paes_s390.c @@ -208,7 +208,7 @@ static int cbc_paes_crypt(struct blkcipher_desc *desc, unsigned long modifier, walk->dst.virt.addr, walk->src.virt.addr, n); if (k) ret = blkcipher_walk_done(desc, walk, nbytes - k); - if (n < k) { + if (k < n) { if (__cbc_paes_set_key(ctx) != 0) return blkcipher_walk_done(desc, walk, -EIO); memcpy(param.key, ctx->pk.protkey, MAXPROTKEYSIZE); From a11bdb1a6b782ee97587f92fae798efc78c31093 Mon Sep 17 00:00:00 2001 From: Janosch Frank Date: Thu, 30 Aug 2018 10:13:55 +0200 Subject: [PATCH 0580/1762] KVM: s390: Fix pfmf and conditional skey emulation We should not return with a lock. We also have to increase the address when we do page clearing. Fixes: bd096f644319 ("KVM: s390: Add skey emulation fault handling") Signed-off-by: Janosch Frank Message-Id: <20180830081355.59234-1-frankja@linux.ibm.com> Reviewed-by: David Hildenbrand Signed-off-by: Christian Borntraeger --- arch/s390/kvm/priv.c | 30 ++++++++++++++++++------------ 1 file changed, 18 insertions(+), 12 deletions(-) diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index d68f10441a16..8679bd74d337 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -280,9 +280,11 @@ retry: goto retry; } } - if (rc) - return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); up_read(¤t->mm->mmap_sem); + if (rc == -EFAULT) + return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); + if (rc < 0) + return rc; vcpu->run->s.regs.gprs[reg1] &= ~0xff; vcpu->run->s.regs.gprs[reg1] |= key; return 0; @@ -324,9 +326,11 @@ retry: goto retry; } } - if (rc < 0) - return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); up_read(¤t->mm->mmap_sem); + if (rc == -EFAULT) + return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); + if (rc < 0) + return rc; kvm_s390_set_psw_cc(vcpu, rc); return 0; } @@ -390,12 +394,12 @@ static int handle_sske(struct kvm_vcpu *vcpu) FAULT_FLAG_WRITE, &unlocked); rc = !rc ? -EAGAIN : rc; } + up_read(¤t->mm->mmap_sem); if (rc == -EFAULT) return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); - - up_read(¤t->mm->mmap_sem); - if (rc >= 0) - start += PAGE_SIZE; + if (rc < 0) + return rc; + start += PAGE_SIZE; } if (m3 & (SSKE_MC | SSKE_MR)) { @@ -1002,13 +1006,15 @@ static int handle_pfmf(struct kvm_vcpu *vcpu) FAULT_FLAG_WRITE, &unlocked); rc = !rc ? -EAGAIN : rc; } + up_read(¤t->mm->mmap_sem); if (rc == -EFAULT) return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); - - up_read(¤t->mm->mmap_sem); - if (rc >= 0) - start += PAGE_SIZE; + if (rc == -EAGAIN) + continue; + if (rc < 0) + return rc; } + start += PAGE_SIZE; } if (vcpu->run->s.regs.gprs[reg1] & PFMF_FSC) { if (psw_bits(vcpu->arch.sie_block->gpsw).eaba == PSW_BITS_AMODE_64BIT) { From 204c97245612b6c255edf4e21e24d417c4a0c008 Mon Sep 17 00:00:00 2001 From: Pierre Morel Date: Thu, 23 Aug 2018 12:25:54 +0200 Subject: [PATCH 0581/1762] KVM: s390: vsie: copy wrapping keys to right place Copy the key mask to the right offset inside the shadow CRYCB Fixes: bbeaa58b3 ("KVM: s390: vsie: support aes dea wrapping keys") Signed-off-by: Pierre Morel Reviewed-by: David Hildenbrand Reviewed-by: Cornelia Huck Reviewed-by: Janosch Frank Cc: stable@vger.kernel.org # v4.8+ Message-Id: <1535019956-23539-2-git-send-email-pmorel@linux.ibm.com> Signed-off-by: Janosch Frank Signed-off-by: Christian Borntraeger --- arch/s390/kvm/vsie.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c index 63844b95c22c..a2b28cd1e3fe 100644 --- a/arch/s390/kvm/vsie.c +++ b/arch/s390/kvm/vsie.c @@ -173,7 +173,8 @@ static int shadow_crycb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) return set_validity_icpt(scb_s, 0x0039U); /* copy only the wrapping keys */ - if (read_guest_real(vcpu, crycb_addr + 72, &vsie_page->crycb, 56)) + if (read_guest_real(vcpu, crycb_addr + 72, + vsie_page->crycb.dea_wrapping_key_mask, 56)) return set_validity_icpt(scb_s, 0x0035U); scb_s->ecb3 |= ecb3_flags; From df88f3181f10565c6e3a89eb6f0f9e6afaaf15f1 Mon Sep 17 00:00:00 2001 From: Janosch Frank Date: Thu, 30 Aug 2018 16:14:18 +0200 Subject: [PATCH 0582/1762] KVM: s390: Properly lock mm context allow_gmap_hpage_1m setting We have to do down_write on the mm semaphore to set a bitfield in the mm context. Signed-off-by: Janosch Frank Fixes: a4499382 ("KVM: s390: Add huge page enablement control") Reviewed-by: Christian Borntraeger Signed-off-by: Christian Borntraeger --- arch/s390/include/asm/mmu.h | 8 +++++++- arch/s390/kvm/kvm-s390.c | 2 ++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h index f31a15044c24..a8418e1379eb 100644 --- a/arch/s390/include/asm/mmu.h +++ b/arch/s390/include/asm/mmu.h @@ -16,7 +16,13 @@ typedef struct { unsigned long asce; unsigned long asce_limit; unsigned long vdso_base; - /* The mmu context allocates 4K page tables. */ + /* + * The following bitfields need a down_write on the mm + * semaphore when they are written to. As they are only + * written once, they can be read without a lock. + * + * The mmu context allocates 4K page tables. + */ unsigned int alloc_pgste:1; /* The mmu context uses extended page tables. */ unsigned int has_pgste:1; diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 91ad4a9425c0..f69333fd2fa3 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -695,7 +695,9 @@ static int kvm_vm_ioctl_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap) r = -EINVAL; else { r = 0; + down_write(&kvm->mm->mmap_sem); kvm->mm->context.allow_gmap_hpage_1m = 1; + up_write(&kvm->mm->mmap_sem); /* * We might have to create fake 4k page * tables. To avoid that the hardware works on From 3c398f3c3bef21961eaaeb93227fa66d440dc83d Mon Sep 17 00:00:00 2001 From: Andreas Kemnade Date: Sun, 2 Sep 2018 09:30:58 +0200 Subject: [PATCH 0583/1762] mmc: omap_hsmmc: fix wakeirq handling on removal after unbinding mmc I get things like this: [ 185.294067] mmc1: card 0001 removed [ 185.305206] omap_hsmmc 480b4000.mmc: wake IRQ with no resume: -13 The wakeirq stays in /proc-interrupts rebinding shows this: [ 289.795959] genirq: Flags mismatch irq 112. 0000200a (480b4000.mmc:wakeup) vs. 0000200a (480b4000.mmc:wakeup) [ 289.808959] omap_hsmmc 480b4000.mmc: Unable to request wake IRQ [ 289.815338] omap_hsmmc 480b4000.mmc: no SDIO IRQ support, falling back to polling That bug seems to be introduced by switching from devm_request_irq() to generic wakeirq handling. So let us cleanup at removal. Signed-off-by: Andreas Kemnade Fixes: 5b83b2234be6 ("mmc: omap_hsmmc: Change wake-up interrupt to use generic wakeirq") Cc: stable@vger.kernel.org # v4.2+ Signed-off-by: Ulf Hansson --- drivers/mmc/host/omap_hsmmc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 071693ebfe18..68760d4a5d3d 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -2177,6 +2177,7 @@ static int omap_hsmmc_remove(struct platform_device *pdev) dma_release_channel(host->tx_chan); dma_release_channel(host->rx_chan); + dev_pm_clear_wake_irq(host->dev); pm_runtime_dont_use_autosuspend(host->dev); pm_runtime_put_sync(host->dev); pm_runtime_disable(host->dev); From e4b069e0945fa14c71cf8b5b89f8b1b2aa68dbc2 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Wed, 22 Aug 2018 12:45:51 -0400 Subject: [PATCH 0584/1762] dm verity: fix crash on bufio buffer that was allocated with vmalloc Since commit d1ac3ff008fb ("dm verity: switch to using asynchronous hash crypto API") dm-verity uses asynchronous crypto calls for verification, so that it can use hardware with asynchronous processing of crypto operations. These asynchronous calls don't support vmalloc memory, but the buffer data can be allocated with vmalloc if dm-bufio is short of memory and uses a reserved buffer that was preallocated in dm_bufio_client_create(). Fix verity_hash_update() so that it deals with vmalloc'd memory correctly. Reported-by: "Xiao, Jin" Signed-off-by: Mikulas Patocka Fixes: d1ac3ff008fb ("dm verity: switch to using asynchronous hash crypto API") Cc: stable@vger.kernel.org # 4.12+ Signed-off-by: Mike Snitzer --- drivers/md/dm-verity-target.c | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c index 12decdbd722d..fc65f0dedf7f 100644 --- a/drivers/md/dm-verity-target.c +++ b/drivers/md/dm-verity-target.c @@ -99,10 +99,26 @@ static int verity_hash_update(struct dm_verity *v, struct ahash_request *req, { struct scatterlist sg; - sg_init_one(&sg, data, len); - ahash_request_set_crypt(req, &sg, NULL, len); - - return crypto_wait_req(crypto_ahash_update(req), wait); + if (likely(!is_vmalloc_addr(data))) { + sg_init_one(&sg, data, len); + ahash_request_set_crypt(req, &sg, NULL, len); + return crypto_wait_req(crypto_ahash_update(req), wait); + } else { + do { + int r; + size_t this_step = min_t(size_t, len, PAGE_SIZE - offset_in_page(data)); + flush_kernel_vmap_range((void *)data, this_step); + sg_init_table(&sg, 1); + sg_set_page(&sg, vmalloc_to_page(data), this_step, offset_in_page(data)); + ahash_request_set_crypt(req, &sg, NULL, this_step); + r = crypto_wait_req(crypto_ahash_update(req), wait); + if (unlikely(r)) + return r; + data += this_step; + len -= this_step; + } while (len); + return 0; + } } /* From 18d545bb2599d6e5b0747351eaeebb0160d261f9 Mon Sep 17 00:00:00 2001 From: "Andrew F. Davis" Date: Tue, 4 Sep 2018 10:36:17 -0500 Subject: [PATCH 0585/1762] ASoC: tlv320aic31xx: Add overflow detection support Similar to short circuit detection, when the ADC/DAC is saturated and overflows poor audio quality can result and should be reported to the user. This device support Automatic Dynamic Range Compression (DRC) to reduce this but it is not enabled currently in this driver. Signed-off-by: Andrew F. Davis Signed-off-by: Mark Brown --- sound/soc/codecs/tlv320aic31xx.c | 34 ++++++++++++++++++++++++++++++-- sound/soc/codecs/tlv320aic31xx.h | 7 +++++++ 2 files changed, 39 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c index 2abe51d9f879..608ad49ad978 100644 --- a/sound/soc/codecs/tlv320aic31xx.c +++ b/sound/soc/codecs/tlv320aic31xx.c @@ -1409,7 +1409,7 @@ static irqreturn_t aic31xx_irq(int irq, void *data) if (value) handled = true; else - goto exit; + goto read_overflow; if (value & AIC31XX_HPLSCDETECT) dev_err(dev, "Short circuit on Left output is detected\n"); @@ -1419,6 +1419,35 @@ static irqreturn_t aic31xx_irq(int irq, void *data) AIC31XX_HPRSCDETECT)) dev_err(dev, "Unknown DAC interrupt flags: 0x%08x\n", value); +read_overflow: + ret = regmap_read(aic31xx->regmap, AIC31XX_OFFLAG, &value); + if (ret) { + dev_err(dev, "Failed to read overflow flag: %d\n", ret); + goto exit; + } + + if (value) + handled = true; + else + goto exit; + + if (value & AIC31XX_DAC_OF_LEFT) + dev_warn(dev, "Left-channel DAC overflow has occurred\n"); + if (value & AIC31XX_DAC_OF_RIGHT) + dev_warn(dev, "Right-channel DAC overflow has occurred\n"); + if (value & AIC31XX_DAC_OF_SHIFTER) + dev_warn(dev, "DAC barrel shifter overflow has occurred\n"); + if (value & AIC31XX_ADC_OF) + dev_warn(dev, "ADC overflow has occurred\n"); + if (value & AIC31XX_ADC_OF_SHIFTER) + dev_warn(dev, "ADC barrel shifter overflow has occurred\n"); + if (value & ~(AIC31XX_DAC_OF_LEFT | + AIC31XX_DAC_OF_RIGHT | + AIC31XX_DAC_OF_SHIFTER | + AIC31XX_ADC_OF | + AIC31XX_ADC_OF_SHIFTER)) + dev_warn(dev, "Unknown overflow interrupt flags: 0x%08x\n", value); + exit: if (handled) return IRQ_HANDLED; @@ -1499,7 +1528,8 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c, AIC31XX_GPIO1_FUNC_SHIFT); regmap_write(aic31xx->regmap, AIC31XX_INT1CTRL, - AIC31XX_SC); + AIC31XX_SC | + AIC31XX_ENGINE); ret = devm_request_threaded_irq(aic31xx->dev, aic31xx->irq, NULL, aic31xx_irq, diff --git a/sound/soc/codecs/tlv320aic31xx.h b/sound/soc/codecs/tlv320aic31xx.h index 52e171988906..2636f2c6bc79 100644 --- a/sound/soc/codecs/tlv320aic31xx.h +++ b/sound/soc/codecs/tlv320aic31xx.h @@ -173,6 +173,13 @@ struct aic31xx_pdata { #define AIC31XX_HPRDRVPWRSTATUS_MASK BIT(1) #define AIC31XX_SPRDRVPWRSTATUS_MASK BIT(0) +/* AIC31XX_OFFLAG */ +#define AIC31XX_DAC_OF_LEFT BIT(7) +#define AIC31XX_DAC_OF_RIGHT BIT(6) +#define AIC31XX_DAC_OF_SHIFTER BIT(5) +#define AIC31XX_ADC_OF BIT(3) +#define AIC31XX_ADC_OF_SHIFTER BIT(1) + /* AIC31XX_INTRDACFLAG */ #define AIC31XX_HPLSCDETECT BIT(7) #define AIC31XX_HPRSCDETECT BIT(6) From 3db769f17714ae65f2faf44ff2bae9d52f4bd46b Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 3 Sep 2018 02:12:40 +0000 Subject: [PATCH 0586/1762] ASoC: add for_each_link_codecs() macro ALSA SoC snd_soc_dai_link has snd_soc_dai_link_component array for codecs. To be more readable code, this patch adds new for_each_link_codecs() macro, and replace existing code to it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/soc.h | 4 ++++ sound/soc/meson/axg-card.c | 5 +++-- sound/soc/soc-core.c | 17 ++++++++--------- 3 files changed, 15 insertions(+), 11 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index 96c19aabf21b..ce42c578fe82 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -978,6 +978,10 @@ struct snd_soc_dai_link { struct list_head list; /* DAI link list of the soc card */ struct snd_soc_dobj dobj; /* For topology */ }; +#define for_each_link_codecs(link, i, codec) \ + for ((i) = 0; \ + ((i) < link->num_codecs) && ((codec) = &link->codecs[i]); \ + (i)++) struct snd_soc_codec_conf { /* diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c index b76a5f4f1785..3e68f1aa68ff 100644 --- a/sound/soc/meson/axg-card.c +++ b/sound/soc/meson/axg-card.c @@ -97,14 +97,15 @@ static void axg_card_clean_references(struct axg_card *priv) { struct snd_soc_card *card = &priv->card; struct snd_soc_dai_link *link; + struct snd_soc_dai_link_component *codec; int i, j; if (card->dai_link) { for (i = 0; i < card->num_links; i++) { link = &card->dai_link[i]; of_node_put(link->cpu_of_node); - for (j = 0; j < link->num_codecs; j++) - of_node_put(link->codecs[j].of_node); + for_each_link_codecs(link, j, codec) + of_node_put(codec->of_node); } } diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index e9c2304afaf1..eeab492e954f 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1071,6 +1071,7 @@ static int soc_init_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *link) { int i, ret; + struct snd_soc_dai_link_component *codec; ret = snd_soc_init_platform(card, link); if (ret) { @@ -1084,19 +1085,19 @@ static int soc_init_dai_link(struct snd_soc_card *card, return ret; } - for (i = 0; i < link->num_codecs; i++) { + for_each_link_codecs(link, i, codec) { /* * Codec must be specified by 1 of name or OF node, * not both or neither. */ - if (!!link->codecs[i].name == - !!link->codecs[i].of_node) { + if (!!codec->name == + !!codec->of_node) { dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n", link->name); return -EINVAL; } /* Codec DAI name must be specified */ - if (!link->codecs[i].dai_name) { + if (!codec->dai_name) { dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", link->name); return -EINVAL; @@ -3796,10 +3797,10 @@ EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); */ void snd_soc_of_put_dai_link_codecs(struct snd_soc_dai_link *dai_link) { - struct snd_soc_dai_link_component *component = dai_link->codecs; + struct snd_soc_dai_link_component *component; int index; - for (index = 0; index < dai_link->num_codecs; index++, component++) { + for_each_link_codecs(dai_link, index, component) { if (!component->of_node) break; of_node_put(component->of_node); @@ -3851,9 +3852,7 @@ int snd_soc_of_get_dai_link_codecs(struct device *dev, dai_link->num_codecs = num_codecs; /* Parse the list */ - for (index = 0, component = dai_link->codecs; - index < dai_link->num_codecs; - index++, component++) { + for_each_link_codecs(dai_link, index, component) { ret = of_parse_phandle_with_args(of_node, name, "#sound-dai-cells", index, &args); From 0b7990e38971da403ce223d8bdc758a817eb72f8 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 3 Sep 2018 02:12:56 +0000 Subject: [PATCH 0587/1762] ASoC: add for_each_rtd_codec_dai() macro ALSA SoC snd_soc_pcm_runtime has snd_soc_dai array for codec_dai. To be more readable code, this patch adds new for_each_rtd_codec_dai() macro, and replace existing code to it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/soc.h | 7 + sound/soc/intel/boards/kbl_rt5663_max98927.c | 5 +- .../intel/boards/kbl_rt5663_rt5514_max98927.c | 5 +- .../mediatek/mt8173/mt8173-rt5650-rt5514.c | 5 +- .../mediatek/mt8173/mt8173-rt5650-rt5676.c | 5 +- sound/soc/mediatek/mt8173/mt8173-rt5650.c | 5 +- sound/soc/meson/axg-card.c | 6 +- sound/soc/soc-core.c | 38 ++--- sound/soc/soc-dapm.c | 14 +- sound/soc/soc-pcm.c | 154 ++++++++---------- 10 files changed, 118 insertions(+), 126 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index ce42c578fe82..6b68b31e3140 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1158,6 +1158,13 @@ struct snd_soc_pcm_runtime { unsigned int dev_registered:1; unsigned int pop_wait:1; }; +#define for_each_rtd_codec_dai(rtd, i, dai)\ + for ((i) = 0; \ + ((i) < rtd->num_codecs) && ((dai) = rtd->codec_dais[i]); \ + (i)++) +#define for_each_rtd_codec_dai_reverse(rtd, i, dai) \ + for (; ((i--) >= 0) && ((dai) = rtd->codec_dais[i]);) + /* mixer control */ struct soc_mixer_control { diff --git a/sound/soc/intel/boards/kbl_rt5663_max98927.c b/sound/soc/intel/boards/kbl_rt5663_max98927.c index 21a6490746a6..99e1320c485f 100644 --- a/sound/soc/intel/boards/kbl_rt5663_max98927.c +++ b/sound/soc/intel/boards/kbl_rt5663_max98927.c @@ -488,11 +488,10 @@ static int kabylake_ssp0_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai; int ret = 0, j; - for (j = 0; j < rtd->num_codecs; j++) { - struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; - + for_each_rtd_codec_dai(rtd, j, codec_dai) { if (!strcmp(codec_dai->component->name, MAXIM_DEV0_NAME)) { /* * Use channel 4 and 5 for the first amp diff --git a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c index a892b37eab7c..a737c915d46a 100644 --- a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c +++ b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c @@ -353,11 +353,10 @@ static int kabylake_ssp0_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai; int ret = 0, j; - for (j = 0; j < rtd->num_codecs; j++) { - struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; - + for_each_rtd_codec_dai(rtd, j, codec_dai) { if (!strcmp(codec_dai->component->name, RT5514_DEV_NAME)) { ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0, 8, 16); if (ret < 0) { diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c index 582174d98c6c..5b4e90180827 100644 --- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c +++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c @@ -44,11 +44,10 @@ static int mt8173_rt5650_rt5514_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai; int i, ret; - for (i = 0; i < rtd->num_codecs; i++) { - struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; - + for_each_rtd_codec_dai(rtd, i, codec_dai) { /* pll from mclk 12.288M */ ret = snd_soc_dai_set_pll(codec_dai, 0, 0, MCLK_FOR_CODECS, params_rate(params) * 512); diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c index b3670c8a5b8d..82675ed057de 100644 --- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c +++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c @@ -48,11 +48,10 @@ static int mt8173_rt5650_rt5676_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai; int i, ret; - for (i = 0; i < rtd->num_codecs; i++) { - struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; - + for_each_rtd_codec_dai(rtd, i, codec_dai) { /* pll from mclk 12.288M */ ret = snd_soc_dai_set_pll(codec_dai, 0, 0, MCLK_FOR_CODECS, params_rate(params) * 512); diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650.c b/sound/soc/mediatek/mt8173/mt8173-rt5650.c index 7a89b4aad182..ef05fbc40c32 100644 --- a/sound/soc/mediatek/mt8173/mt8173-rt5650.c +++ b/sound/soc/mediatek/mt8173/mt8173-rt5650.c @@ -59,6 +59,7 @@ static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_pcm_runtime *rtd = substream->private_data; unsigned int mclk_clock; + struct snd_soc_dai *codec_dai; int i, ret; switch (mt8173_rt5650_priv.pll_from) { @@ -76,9 +77,7 @@ static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream, break; } - for (i = 0; i < rtd->num_codecs; i++) { - struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; - + for_each_rtd_codec_dai(rtd, i, codec_dai) { /* pll from mclk */ ret = snd_soc_dai_set_pll(codec_dai, 0, 0, mclk_clock, params_rate(params) * 512); diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c index 3e68f1aa68ff..197e10a96e28 100644 --- a/sound/soc/meson/axg-card.c +++ b/sound/soc/meson/axg-card.c @@ -168,8 +168,7 @@ static int axg_card_tdm_be_hw_params(struct snd_pcm_substream *substream, if (be->mclk_fs) { mclk = params_rate(params) * be->mclk_fs; - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, SND_SOC_CLOCK_IN); if (ret && ret != -ENOTSUPP) @@ -197,8 +196,7 @@ static int axg_card_tdm_dai_init(struct snd_soc_pcm_runtime *rtd) struct snd_soc_dai *codec_dai; int ret, i; - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { ret = snd_soc_dai_set_tdm_slot(codec_dai, be->codec_masks[i].tx, be->codec_masks[i].rx, diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index eeab492e954f..390da15c4a8b 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -452,12 +452,12 @@ int snd_soc_suspend(struct device *dev) /* mute any active DACs */ list_for_each_entry(rtd, &card->rtd_list, list) { + struct snd_soc_dai *dai; if (rtd->dai_link->ignore_suspend) continue; - for (i = 0; i < rtd->num_codecs; i++) { - struct snd_soc_dai *dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, dai) { struct snd_soc_dai_driver *drv = dai->driver; if (drv->ops->digital_mute && dai->playback_active) @@ -625,12 +625,12 @@ static void soc_resume_deferred(struct work_struct *work) /* unmute any active DACs */ list_for_each_entry(rtd, &card->rtd_list, list) { + struct snd_soc_dai *dai; if (rtd->dai_link->ignore_suspend) continue; - for (i = 0; i < rtd->num_codecs; i++) { - struct snd_soc_dai *dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, dai) { struct snd_soc_dai_driver *drv = dai->driver; if (drv->ops->digital_mute && dai->playback_active) @@ -674,15 +674,14 @@ int snd_soc_resume(struct device *dev) /* activate pins from sleep state */ list_for_each_entry(rtd, &card->rtd_list, list) { - struct snd_soc_dai **codec_dais = rtd->codec_dais; + struct snd_soc_dai *codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; int j; if (cpu_dai->active) pinctrl_pm_select_default_state(cpu_dai->dev); - for (j = 0; j < rtd->num_codecs; j++) { - struct snd_soc_dai *codec_dai = codec_dais[j]; + for_each_rtd_codec_dai(rtd, j, codec_dai) { if (codec_dai->active) pinctrl_pm_select_default_state(codec_dai->dev); } @@ -877,6 +876,7 @@ static int soc_bind_dai_link(struct snd_soc_card *card, rtd->num_codecs = dai_link->num_codecs; /* Find CODEC from registered CODECs */ + /* we can use for_each_rtd_codec_dai() after this */ codec_dais = rtd->codec_dais; for (i = 0; i < rtd->num_codecs; i++) { codec_dais[i] = snd_soc_find_dai(&codecs[i]); @@ -959,6 +959,7 @@ static void soc_remove_link_dais(struct snd_soc_card *card, struct snd_soc_pcm_runtime *rtd, int order) { int i; + struct snd_soc_dai *codec_dai; /* unregister the rtd device */ if (rtd->dev_registered) { @@ -967,8 +968,8 @@ static void soc_remove_link_dais(struct snd_soc_card *card, } /* remove the CODEC DAI */ - for (i = 0; i < rtd->num_codecs; i++) - soc_remove_dai(rtd->codec_dais[i], order); + for_each_rtd_codec_dai(rtd, i, codec_dai) + soc_remove_dai(codec_dai, order); soc_remove_dai(rtd->cpu_dai, order); } @@ -1511,6 +1512,7 @@ static int soc_probe_link_dais(struct snd_soc_card *card, struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_component *component; + struct snd_soc_dai *codec_dai; int i, ret, num; dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", @@ -1524,8 +1526,8 @@ static int soc_probe_link_dais(struct snd_soc_card *card, return ret; /* probe the CODEC DAI */ - for (i = 0; i < rtd->num_codecs; i++) { - ret = soc_probe_dai(rtd->codec_dais[i], order); + for_each_rtd_codec_dai(rtd, i, codec_dai) { + ret = soc_probe_dai(codec_dai, order); if (ret) return ret; } @@ -1712,14 +1714,12 @@ static void soc_remove_aux_devices(struct snd_soc_card *card) int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, unsigned int dai_fmt) { - struct snd_soc_dai **codec_dais = rtd->codec_dais; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai; unsigned int i; int ret; - for (i = 0; i < rtd->num_codecs; i++) { - struct snd_soc_dai *codec_dai = codec_dais[i]; - + for_each_rtd_codec_dai(rtd, i, codec_dai) { ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); if (ret != 0 && ret != -ENOTSUPP) { dev_warn(codec_dai->dev, @@ -2266,11 +2266,11 @@ int snd_soc_poweroff(struct device *dev) /* deactivate pins to sleep state */ list_for_each_entry(rtd, &card->rtd_list, list) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai; int i; pinctrl_pm_select_sleep_state(cpu_dai->dev); - for (i = 0; i < rtd->num_codecs; i++) { - struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { pinctrl_pm_select_sleep_state(codec_dai->dev); } } @@ -2776,10 +2776,10 @@ int snd_soc_register_card(struct snd_soc_card *card) /* deactivate pins to sleep state */ list_for_each_entry(rtd, &card->rtd_list, list) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai; int j; - for (j = 0; j < rtd->num_codecs; j++) { - struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; + for_each_rtd_codec_dai(rtd, j, codec_dai) { if (!codec_dai->active) pinctrl_pm_select_sleep_state(codec_dai->dev); } diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 9feccd2e7c11..0a738cb439be 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -2370,12 +2370,13 @@ static ssize_t dapm_widget_show(struct device *dev, struct device_attribute *attr, char *buf) { struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); + struct snd_soc_dai *codec_dai; int i, count = 0; mutex_lock(&rtd->card->dapm_mutex); - for (i = 0; i < rtd->num_codecs; i++) { - struct snd_soc_component *cmpnt = rtd->codec_dais[i]->component; + for_each_rtd_codec_dai(rtd, i, codec_dai) { + struct snd_soc_component *cmpnt = codec_dai->component; count += dapm_widget_show_component(cmpnt, buf + count); } @@ -4110,11 +4111,11 @@ static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, struct snd_soc_pcm_runtime *rtd) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai; struct snd_soc_dapm_widget *sink, *source; int i; - for (i = 0; i < rtd->num_codecs; i++) { - struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { /* connect BE DAI playback if widgets are valid */ if (codec_dai->playback_widget && cpu_dai->playback_widget) { @@ -4202,11 +4203,12 @@ void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, int event) { + struct snd_soc_dai *codec_dai; int i; soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); - for (i = 0; i < rtd->num_codecs; i++) - soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); + for_each_rtd_codec_dai(rtd, i, codec_dai) + soc_dapm_dai_stream_event(codec_dai, stream, event); dapm_power_widgets(rtd->card, event); } diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index eb6f4f1b65a9..79f5dd541d29 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -59,25 +59,26 @@ static bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream) void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai; int i; lockdep_assert_held(&rtd->pcm_mutex); if (stream == SNDRV_PCM_STREAM_PLAYBACK) { cpu_dai->playback_active++; - for (i = 0; i < rtd->num_codecs; i++) - rtd->codec_dais[i]->playback_active++; + for_each_rtd_codec_dai(rtd, i, codec_dai) + codec_dai->playback_active++; } else { cpu_dai->capture_active++; - for (i = 0; i < rtd->num_codecs; i++) - rtd->codec_dais[i]->capture_active++; + for_each_rtd_codec_dai(rtd, i, codec_dai) + codec_dai->capture_active++; } cpu_dai->active++; cpu_dai->component->active++; - for (i = 0; i < rtd->num_codecs; i++) { - rtd->codec_dais[i]->active++; - rtd->codec_dais[i]->component->active++; + for_each_rtd_codec_dai(rtd, i, codec_dai) { + codec_dai->active++; + codec_dai->component->active++; } } @@ -94,25 +95,26 @@ void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream) void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai; int i; lockdep_assert_held(&rtd->pcm_mutex); if (stream == SNDRV_PCM_STREAM_PLAYBACK) { cpu_dai->playback_active--; - for (i = 0; i < rtd->num_codecs; i++) - rtd->codec_dais[i]->playback_active--; + for_each_rtd_codec_dai(rtd, i, codec_dai) + codec_dai->playback_active--; } else { cpu_dai->capture_active--; - for (i = 0; i < rtd->num_codecs; i++) - rtd->codec_dais[i]->capture_active--; + for_each_rtd_codec_dai(rtd, i, codec_dai) + codec_dai->capture_active--; } cpu_dai->active--; cpu_dai->component->active--; - for (i = 0; i < rtd->num_codecs; i++) { - rtd->codec_dais[i]->component->active--; - rtd->codec_dais[i]->active--; + for_each_rtd_codec_dai(rtd, i, codec_dai) { + codec_dai->component->active--; + codec_dai->active--; } } @@ -253,6 +255,7 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai; unsigned int rate, channels, sample_bits, symmetry, i; rate = params_rate(params); @@ -263,8 +266,8 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, symmetry = cpu_dai->driver->symmetric_rates || rtd->dai_link->symmetric_rates; - for (i = 0; i < rtd->num_codecs; i++) - symmetry |= rtd->codec_dais[i]->driver->symmetric_rates; + for_each_rtd_codec_dai(rtd, i, codec_dai) + symmetry |= codec_dai->driver->symmetric_rates; if (symmetry && cpu_dai->rate && cpu_dai->rate != rate) { dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n", @@ -275,8 +278,8 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, symmetry = cpu_dai->driver->symmetric_channels || rtd->dai_link->symmetric_channels; - for (i = 0; i < rtd->num_codecs; i++) - symmetry |= rtd->codec_dais[i]->driver->symmetric_channels; + for_each_rtd_codec_dai(rtd, i, codec_dai) + symmetry |= codec_dai->driver->symmetric_channels; if (symmetry && cpu_dai->channels && cpu_dai->channels != channels) { dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n", @@ -287,8 +290,8 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, symmetry = cpu_dai->driver->symmetric_samplebits || rtd->dai_link->symmetric_samplebits; - for (i = 0; i < rtd->num_codecs; i++) - symmetry |= rtd->codec_dais[i]->driver->symmetric_samplebits; + for_each_rtd_codec_dai(rtd, i, codec_dai) + symmetry |= codec_dai->driver->symmetric_samplebits; if (symmetry && cpu_dai->sample_bits && cpu_dai->sample_bits != sample_bits) { dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n", @@ -304,17 +307,18 @@ static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream) struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver; struct snd_soc_dai_link *link = rtd->dai_link; + struct snd_soc_dai *codec_dai; unsigned int symmetry, i; symmetry = cpu_driver->symmetric_rates || link->symmetric_rates || cpu_driver->symmetric_channels || link->symmetric_channels || cpu_driver->symmetric_samplebits || link->symmetric_samplebits; - for (i = 0; i < rtd->num_codecs; i++) + for_each_rtd_codec_dai(rtd, i, codec_dai) symmetry = symmetry || - rtd->codec_dais[i]->driver->symmetric_rates || - rtd->codec_dais[i]->driver->symmetric_channels || - rtd->codec_dais[i]->driver->symmetric_samplebits; + codec_dai->driver->symmetric_rates || + codec_dai->driver->symmetric_channels || + codec_dai->driver->symmetric_samplebits; return symmetry; } @@ -342,8 +346,7 @@ static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) unsigned int bits = 0, cpu_bits; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { if (codec_dai->driver->playback.sig_bits == 0) { bits = 0; break; @@ -352,8 +355,7 @@ static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) } cpu_bits = cpu_dai->driver->playback.sig_bits; } else { - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { if (codec_dai->driver->capture.sig_bits == 0) { bits = 0; break; @@ -372,6 +374,7 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) struct snd_pcm_runtime *runtime = substream->runtime; struct snd_pcm_hardware *hw = &runtime->hw; struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai; struct snd_soc_dai_driver *cpu_dai_drv = rtd->cpu_dai->driver; struct snd_soc_dai_driver *codec_dai_drv; struct snd_soc_pcm_stream *codec_stream; @@ -388,7 +391,7 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) cpu_stream = &cpu_dai_drv->capture; /* first calculate min/max only for CODECs in the DAI link */ - for (i = 0; i < rtd->num_codecs; i++) { + for_each_rtd_codec_dai(rtd, i, codec_dai) { /* * Skip CODECs which don't support the current stream type. @@ -399,11 +402,11 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) * bailed out on a higher level, since there would be no * CODEC to support the transfer direction in that case. */ - if (!snd_soc_dai_stream_valid(rtd->codec_dais[i], + if (!snd_soc_dai_stream_valid(codec_dai, substream->stream)) continue; - codec_dai_drv = rtd->codec_dais[i]->driver; + codec_dai_drv = codec_dai->driver; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) codec_stream = &codec_dai_drv->playback; else @@ -482,8 +485,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) int i, ret = 0; pinctrl_pm_select_default_state(cpu_dai->dev); - for (i = 0; i < rtd->num_codecs; i++) - pinctrl_pm_select_default_state(rtd->codec_dais[i]->dev); + for_each_rtd_codec_dai(rtd, i, codec_dai) + pinctrl_pm_select_default_state(codec_dai->dev); for_each_rtdcom(rtd, rtdcom) { component = rtdcom->component; @@ -520,8 +523,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) } component = NULL; - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { if (codec_dai->driver->ops->startup) { ret = codec_dai->driver->ops->startup(substream, codec_dai); @@ -588,10 +590,9 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) goto config_err; } - for (i = 0; i < rtd->num_codecs; i++) { - if (rtd->codec_dais[i]->active) { - ret = soc_pcm_apply_symmetry(substream, - rtd->codec_dais[i]); + for_each_rtd_codec_dai(rtd, i, codec_dai) { + if (codec_dai->active) { + ret = soc_pcm_apply_symmetry(substream, codec_dai); if (ret != 0) goto config_err; } @@ -620,8 +621,7 @@ machine_err: i = rtd->num_codecs; codec_dai_err: - while (--i >= 0) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai_reverse(rtd, i, codec_dai) { if (codec_dai->driver->ops->shutdown) codec_dai->driver->ops->shutdown(substream, codec_dai); } @@ -641,9 +641,9 @@ out: pm_runtime_put_autosuspend(component->dev); } - for (i = 0; i < rtd->num_codecs; i++) { - if (!rtd->codec_dais[i]->active) - pinctrl_pm_select_sleep_state(rtd->codec_dais[i]->dev); + for_each_rtd_codec_dai(rtd, i, codec_dai) { + if (!codec_dai->active) + pinctrl_pm_select_sleep_state(codec_dai->dev); } if (!cpu_dai->active) pinctrl_pm_select_sleep_state(cpu_dai->dev); @@ -701,8 +701,7 @@ static int soc_pcm_close(struct snd_pcm_substream *substream) if (!cpu_dai->active) cpu_dai->rate = 0; - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { if (!codec_dai->active) codec_dai->rate = 0; } @@ -712,8 +711,7 @@ static int soc_pcm_close(struct snd_pcm_substream *substream) if (cpu_dai->driver->ops->shutdown) cpu_dai->driver->ops->shutdown(substream, cpu_dai); - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { if (codec_dai->driver->ops->shutdown) codec_dai->driver->ops->shutdown(substream, codec_dai); } @@ -751,9 +749,9 @@ static int soc_pcm_close(struct snd_pcm_substream *substream) pm_runtime_put_autosuspend(component->dev); } - for (i = 0; i < rtd->num_codecs; i++) { - if (!rtd->codec_dais[i]->active) - pinctrl_pm_select_sleep_state(rtd->codec_dais[i]->dev); + for_each_rtd_codec_dai(rtd, i, codec_dai) { + if (!codec_dai->active) + pinctrl_pm_select_sleep_state(codec_dai->dev); } if (!cpu_dai->active) pinctrl_pm_select_sleep_state(cpu_dai->dev); @@ -801,8 +799,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream) } } - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { if (codec_dai->driver->ops->prepare) { ret = codec_dai->driver->ops->prepare(substream, codec_dai); @@ -834,8 +831,8 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream) snd_soc_dapm_stream_event(rtd, substream->stream, SND_SOC_DAPM_STREAM_START); - for (i = 0; i < rtd->num_codecs; i++) - snd_soc_dai_digital_mute(rtd->codec_dais[i], 0, + for_each_rtd_codec_dai(rtd, i, codec_dai) + snd_soc_dai_digital_mute(codec_dai, 0, substream->stream); snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream); @@ -920,6 +917,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai; int i, ret = 0; mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); @@ -932,8 +930,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, } } - for (i = 0; i < rtd->num_codecs; i++) { - struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { struct snd_pcm_hw_params codec_params; /* @@ -1018,8 +1015,7 @@ interface_err: i = rtd->num_codecs; codec_err: - while (--i >= 0) { - struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai_reverse(rtd, i, codec_dai) { if (codec_dai->driver->ops->hw_free) codec_dai->driver->ops->hw_free(substream, codec_dai); codec_dai->rate = 0; @@ -1052,8 +1048,7 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream) cpu_dai->sample_bits = 0; } - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { if (codec_dai->active == 1) { codec_dai->rate = 0; codec_dai->channels = 0; @@ -1062,10 +1057,10 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream) } /* apply codec digital mute */ - for (i = 0; i < rtd->num_codecs; i++) { - if ((playback && rtd->codec_dais[i]->playback_active == 1) || - (!playback && rtd->codec_dais[i]->capture_active == 1)) - snd_soc_dai_digital_mute(rtd->codec_dais[i], 1, + for_each_rtd_codec_dai(rtd, i, codec_dai) { + if ((playback && codec_dai->playback_active == 1) || + (!playback && codec_dai->capture_active == 1)) + snd_soc_dai_digital_mute(codec_dai, 1, substream->stream); } @@ -1077,8 +1072,7 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream) soc_pcm_components_hw_free(substream, NULL); /* now free hw params for the DAIs */ - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { if (codec_dai->driver->ops->hw_free) codec_dai->driver->ops->hw_free(substream, codec_dai); } @@ -1099,8 +1093,7 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) struct snd_soc_dai *codec_dai; int i, ret; - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { if (codec_dai->driver->ops->trigger) { ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); @@ -1144,8 +1137,7 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, struct snd_soc_dai *codec_dai; int i, ret; - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { if (codec_dai->driver->ops->bespoke_trigger) { ret = codec_dai->driver->ops->bespoke_trigger(substream, cmd, codec_dai); @@ -1199,8 +1191,7 @@ static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) if (cpu_dai->driver->ops->delay) delay += cpu_dai->driver->ops->delay(substream, cpu_dai); - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { if (codec_dai->driver->ops->delay) codec_delay = max(codec_delay, codec_dai->driver->ops->delay(substream, @@ -1388,6 +1379,7 @@ static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget, { struct snd_soc_card *card = widget->dapm->card; struct snd_soc_pcm_runtime *rtd; + struct snd_soc_dai *dai; int i; if (dir == SND_SOC_DAPM_DIR_OUT) { @@ -1398,8 +1390,7 @@ static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget, if (rtd->cpu_dai->playback_widget == widget) return true; - for (i = 0; i < rtd->num_codecs; ++i) { - struct snd_soc_dai *dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, dai) { if (dai->playback_widget == widget) return true; } @@ -1412,8 +1403,7 @@ static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget, if (rtd->cpu_dai->capture_widget == widget) return true; - for (i = 0; i < rtd->num_codecs; ++i) { - struct snd_soc_dai *dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, dai) { if (dai->capture_widget == widget) return true; } @@ -1907,6 +1897,7 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream, struct snd_pcm_substream *be_substream = snd_soc_dpcm_get_substream(be, stream); struct snd_soc_pcm_runtime *rtd = be_substream->private_data; + struct snd_soc_dai *codec_dai; int i; if (rtd->dai_link->be_hw_params_fixup) @@ -1923,10 +1914,10 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream, return err; } - for (i = 0; i < rtd->num_codecs; i++) { - if (rtd->codec_dais[i]->active) { + for_each_rtd_codec_dai(rtd, i, codec_dai) { + if (codec_dai->active) { err = soc_pcm_apply_symmetry(fe_substream, - rtd->codec_dais[i]); + codec_dai); if (err < 0) return err; } @@ -3041,8 +3032,7 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) playback = rtd->dai_link->dpcm_playback; capture = rtd->dai_link->dpcm_capture; } else { - for (i = 0; i < rtd->num_codecs; i++) { - codec_dai = rtd->codec_dais[i]; + for_each_rtd_codec_dai(rtd, i, codec_dai) { if (codec_dai->driver->playback.channels_min) playback = 1; if (codec_dai->driver->capture.channels_min) From 851a15114895c5bce163a6f2d57e0aa4658a1be4 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Mon, 3 Sep 2018 11:24:57 +0300 Subject: [PATCH 0588/1762] i2c: i801: fix DNV's SMBCTRL register offset DNV's iTCO is slightly different with SMBCTRL sitting at a different offset when compared to all other devices. Let's fix so that we can properly use iTCO watchdog. Fixes: 84d7f2ebd70d ("i2c: i801: Add support for Intel DNV") Cc: # v4.4+ Signed-off-by: Felipe Balbi Reviewed-by: Jean Delvare Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-i801.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 04b60a349d7e..c91e145ef5a5 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -140,6 +140,7 @@ #define SBREG_BAR 0x10 #define SBREG_SMBCTRL 0xc6000c +#define SBREG_SMBCTRL_DNV 0xcf000c /* Host status bits for SMBPCISTS */ #define SMBPCISTS_INTS BIT(3) @@ -1399,7 +1400,11 @@ static void i801_add_tco(struct i801_priv *priv) spin_unlock(&p2sb_spinlock); res = &tco_res[ICH_RES_MEM_OFF]; - res->start = (resource_size_t)base64_addr + SBREG_SMBCTRL; + if (pci_dev->device == PCI_DEVICE_ID_INTEL_DNV_SMBUS) + res->start = (resource_size_t)base64_addr + SBREG_SMBCTRL_DNV; + else + res->start = (resource_size_t)base64_addr + SBREG_SMBCTRL; + res->end = res->start + 3; res->flags = IORESOURCE_MEM; From 1723c3155f117ee6e00f28fadf6e9eda4fc85806 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 4 Sep 2018 15:39:30 +0200 Subject: [PATCH 0589/1762] spi: gpio: Fix copy-and-paste error This fixes an embarrassing copy-and-paste error in the errorpath of spi_gpio_request(): we were checking the wrong struct member for error code right after retrieveing the sck GPIO. Fixes: 9b00bc7b901ff672 ("spi: spi-gpio: Rewrite to use GPIO descriptors") Reviewed-by: Geert Uytterhoeven Signed-off-by: Linus Walleij Signed-off-by: Mark Brown --- drivers/spi/spi-gpio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c index 0626e6e3ea0c..421bfc7dda67 100644 --- a/drivers/spi/spi-gpio.c +++ b/drivers/spi/spi-gpio.c @@ -300,8 +300,8 @@ static int spi_gpio_request(struct device *dev, *mflags |= SPI_MASTER_NO_RX; spi_gpio->sck = devm_gpiod_get(dev, "sck", GPIOD_OUT_LOW); - if (IS_ERR(spi_gpio->mosi)) - return PTR_ERR(spi_gpio->mosi); + if (IS_ERR(spi_gpio->sck)) + return PTR_ERR(spi_gpio->sck); for (i = 0; i < num_chipselects; i++) { spi_gpio->cs_gpios[i] = devm_gpiod_get_index(dev, "cs", From bc811f05d77f47059c197a98b6ad242eb03999cb Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 4 Sep 2018 11:52:34 -0600 Subject: [PATCH 0590/1762] nbd: don't allow invalid blocksize settings syzbot reports a divide-by-zero off the NBD_SET_BLKSIZE ioctl. We need proper validation of the input here. Not just if it's zero, but also if the value is a power-of-2 and in a valid range. Add that. Cc: stable@vger.kernel.org Reported-by: syzbot Reviewed-by: Josef Bacik Signed-off-by: Jens Axboe --- drivers/block/nbd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 3863c00372bb..14a51254c3db 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1239,6 +1239,9 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd, case NBD_SET_SOCK: return nbd_add_socket(nbd, arg, false); case NBD_SET_BLKSIZE: + if (!arg || !is_power_of_2(arg) || arg < 512 || + arg > PAGE_SIZE) + return -EINVAL; nbd_size_set(nbd, arg, div_s64(config->bytesize, arg)); return 0; From 639505d4397b8c654a8e2616f9cb70ece40c83f9 Mon Sep 17 00:00:00 2001 From: Tariq Toukan Date: Mon, 3 Sep 2018 18:06:24 +0300 Subject: [PATCH 0591/1762] net/mlx5: Fix SQ offset in QPs with small RQ Correct the formula for calculating the RQ page remainder, which should be in byte granularity. The result will be non-zero only for RQs smaller than PAGE_SIZE, as an RQ size is a power of 2. Divide this by the SQ stride (MLX5_SEND_WQE_BB) to get the SQ offset in strides granularity. Fixes: d7037ad73daa ("net/mlx5: Fix QP fragmented buffer allocation") Signed-off-by: Tariq Toukan Reviewed-by: Eran Ben Elisha Signed-off-by: Saeed Mahameed Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx5/core/wq.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/wq.c b/drivers/net/ethernet/mellanox/mlx5/core/wq.c index 86478a6b99c5..c8c315eb5128 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/wq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/wq.c @@ -139,14 +139,15 @@ int mlx5_wq_qp_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param, struct mlx5_wq_ctrl *wq_ctrl) { u32 sq_strides_offset; + u32 rq_pg_remainder; int err; mlx5_fill_fbc(MLX5_GET(qpc, qpc, log_rq_stride) + 4, MLX5_GET(qpc, qpc, log_rq_size), &wq->rq.fbc); - sq_strides_offset = - ((wq->rq.fbc.frag_sz_m1 + 1) % PAGE_SIZE) / MLX5_SEND_WQE_BB; + rq_pg_remainder = mlx5_wq_cyc_get_byte_size(&wq->rq) % PAGE_SIZE; + sq_strides_offset = rq_pg_remainder / MLX5_SEND_WQE_BB; mlx5_fill_fbc_offset(ilog2(MLX5_SEND_WQE_BB), MLX5_GET(qpc, qpc, log_sq_size), From 6d784f1625ea68783cc1fb17de8f6cd3e1660c3f Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Mon, 3 Sep 2018 11:08:15 -0700 Subject: [PATCH 0592/1762] act_ife: fix a potential use-after-free Immediately after module_put(), user could delete this module, so e->ops could be already freed before we call e->ops->release(). Fix this by moving module_put() after ops->release(). Fixes: ef6980b6becb ("introduce IFE action") Cc: Jamal Hadi Salim Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- net/sched/act_ife.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/act_ife.c b/net/sched/act_ife.c index 196430aefe87..fc412769a1be 100644 --- a/net/sched/act_ife.c +++ b/net/sched/act_ife.c @@ -400,7 +400,6 @@ static void _tcf_ife_cleanup(struct tc_action *a) struct tcf_meta_info *e, *n; list_for_each_entry_safe(e, n, &ife->metalist, metalist) { - module_put(e->ops->owner); list_del(&e->metalist); if (e->metaval) { if (e->ops->release) @@ -408,6 +407,7 @@ static void _tcf_ife_cleanup(struct tc_action *a) else kfree(e->metaval); } + module_put(e->ops->owner); kfree(e); } } From 84cb8eb26cb9ce3c79928094962a475a9d850a53 Mon Sep 17 00:00:00 2001 From: Vlad Buslov Date: Tue, 4 Sep 2018 00:44:42 +0300 Subject: [PATCH 0593/1762] net: sched: action_ife: take reference to meta module Recent refactoring of add_metainfo() caused use_all_metadata() to add metainfo to ife action metalist without taking reference to module. This causes warning in module_put called from ife action cleanup function. Implement add_metainfo_and_get_ops() function that returns with reference to module taken if metainfo was added successfully, and call it from use_all_metadata(), instead of calling __add_metainfo() directly. Example warning: [ 646.344393] WARNING: CPU: 1 PID: 2278 at kernel/module.c:1139 module_put+0x1cb/0x230 [ 646.352437] Modules linked in: act_meta_skbtcindex act_meta_mark act_meta_skbprio act_ife ife veth nfsv3 nfs fscache xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c tun ebtable_filter ebtables ip6table_filter ip6_tables bridge stp llc mlx5_ib ib_uverbs ib_core intel_rapl sb_edac x86_pkg_temp_thermal mlx5_core coretemp kvm_intel kvm nfsd igb irqbypass crct10dif_pclmul devlink crc32_pclmul mei_me joydev ses crc32c_intel enclosure auth_rpcgss i2c_algo_bit ioatdma ptp mei pps_core ghash_clmulni_intel iTCO_wdt iTCO_vendor_support pcspkr dca ipmi_ssif lpc_ich target_core_mod i2c_i801 ipmi_si ipmi_devintf pcc_cpufreq wmi ipmi_msghandler nfs_acl lockd acpi_pad acpi_power_meter grace sunrpc mpt3sas raid_class scsi_transport_sas [ 646.425631] CPU: 1 PID: 2278 Comm: tc Not tainted 4.19.0-rc1+ #799 [ 646.432187] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017 [ 646.440595] RIP: 0010:module_put+0x1cb/0x230 [ 646.445238] Code: f3 66 94 02 e8 26 ff fa ff 85 c0 74 11 0f b6 1d 51 30 94 02 80 fb 01 77 60 83 e3 01 74 13 65 ff 0d 3a 83 db 73 e9 2b ff ff ff <0f> 0b e9 00 ff ff ff e8 59 01 fb ff 85 c0 75 e4 48 c7 c2 20 62 6b [ 646.464997] RSP: 0018:ffff880354d37068 EFLAGS: 00010286 [ 646.470599] RAX: 0000000000000000 RBX: ffffffffc0a52518 RCX: ffffffff8c2668db [ 646.478118] RDX: 0000000000000003 RSI: dffffc0000000000 RDI: ffffffffc0a52518 [ 646.485641] RBP: ffffffffc0a52180 R08: fffffbfff814a4a4 R09: fffffbfff814a4a3 [ 646.493164] R10: ffffffffc0a5251b R11: fffffbfff814a4a4 R12: 1ffff1006a9a6e0d [ 646.500687] R13: 00000000ffffffff R14: ffff880362bab890 R15: dead000000000100 [ 646.508213] FS: 00007f4164c99800(0000) GS:ffff88036fe40000(0000) knlGS:0000000000000000 [ 646.516961] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 646.523080] CR2: 00007f41638b8420 CR3: 0000000351df0004 CR4: 00000000001606e0 [ 646.530595] Call Trace: [ 646.533408] ? find_symbol_in_section+0x260/0x260 [ 646.538509] tcf_ife_cleanup+0x11b/0x200 [act_ife] [ 646.543695] tcf_action_cleanup+0x29/0xa0 [ 646.548078] __tcf_action_put+0x5a/0xb0 [ 646.552289] ? nla_put+0x65/0xe0 [ 646.555889] __tcf_idr_release+0x48/0x60 [ 646.560187] tcf_generic_walker+0x448/0x6b0 [ 646.564764] ? tcf_action_dump_1+0x450/0x450 [ 646.569411] ? __lock_is_held+0x84/0x110 [ 646.573720] ? tcf_ife_walker+0x10c/0x20f [act_ife] [ 646.578982] tca_action_gd+0x972/0xc40 [ 646.583129] ? tca_get_fill.constprop.17+0x250/0x250 [ 646.588471] ? mark_lock+0xcf/0x980 [ 646.592324] ? check_chain_key+0x140/0x1f0 [ 646.596832] ? debug_show_all_locks+0x240/0x240 [ 646.601839] ? memset+0x1f/0x40 [ 646.605350] ? nla_parse+0xca/0x1a0 [ 646.609217] tc_ctl_action+0x215/0x230 [ 646.613339] ? tcf_action_add+0x220/0x220 [ 646.617748] rtnetlink_rcv_msg+0x56a/0x6d0 [ 646.622227] ? rtnl_fdb_del+0x3f0/0x3f0 [ 646.626466] netlink_rcv_skb+0x18d/0x200 [ 646.630752] ? rtnl_fdb_del+0x3f0/0x3f0 [ 646.634959] ? netlink_ack+0x500/0x500 [ 646.639106] netlink_unicast+0x2d0/0x370 [ 646.643409] ? netlink_attachskb+0x340/0x340 [ 646.648050] ? _copy_from_iter_full+0xe9/0x3e0 [ 646.652870] ? import_iovec+0x11e/0x1c0 [ 646.657083] netlink_sendmsg+0x3b9/0x6a0 [ 646.661388] ? netlink_unicast+0x370/0x370 [ 646.665877] ? netlink_unicast+0x370/0x370 [ 646.670351] sock_sendmsg+0x6b/0x80 [ 646.674212] ___sys_sendmsg+0x4a1/0x520 [ 646.678443] ? copy_msghdr_from_user+0x210/0x210 [ 646.683463] ? lock_downgrade+0x320/0x320 [ 646.687849] ? debug_show_all_locks+0x240/0x240 [ 646.692760] ? do_raw_spin_unlock+0xa2/0x130 [ 646.697418] ? _raw_spin_unlock+0x24/0x30 [ 646.701798] ? __handle_mm_fault+0x1819/0x1c10 [ 646.706619] ? __pmd_alloc+0x320/0x320 [ 646.710738] ? debug_show_all_locks+0x240/0x240 [ 646.715649] ? restore_nameidata+0x7b/0xa0 [ 646.720117] ? check_chain_key+0x140/0x1f0 [ 646.724590] ? check_chain_key+0x140/0x1f0 [ 646.729070] ? __fget_light+0xbc/0xd0 [ 646.733121] ? __sys_sendmsg+0xd7/0x150 [ 646.737329] __sys_sendmsg+0xd7/0x150 [ 646.741359] ? __ia32_sys_shutdown+0x30/0x30 [ 646.746003] ? up_read+0x53/0x90 [ 646.749601] ? __do_page_fault+0x484/0x780 [ 646.754105] ? do_syscall_64+0x1e/0x2c0 [ 646.758320] do_syscall_64+0x72/0x2c0 [ 646.762353] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 646.767776] RIP: 0033:0x7f4163872150 [ 646.771713] Code: 8b 15 3c 7d 2b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb cd 66 0f 1f 44 00 00 83 3d b9 d5 2b 00 00 75 10 b8 2e 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 be cd 00 00 48 89 04 24 [ 646.791474] RSP: 002b:00007ffdef7d6b58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 646.799721] RAX: ffffffffffffffda RBX: 0000000000000024 RCX: 00007f4163872150 [ 646.807240] RDX: 0000000000000000 RSI: 00007ffdef7d6bd0 RDI: 0000000000000003 [ 646.814760] RBP: 000000005b8b9482 R08: 0000000000000001 R09: 0000000000000000 [ 646.822286] R10: 00000000000005e7 R11: 0000000000000246 R12: 00007ffdef7dad20 [ 646.829807] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000679bc0 [ 646.837360] irq event stamp: 6083 [ 646.841043] hardirqs last enabled at (6081): [] __call_rcu+0x17d/0x500 [ 646.849882] hardirqs last disabled at (6083): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 646.859775] softirqs last enabled at (5968): [] __do_softirq+0x4a1/0x6ee [ 646.868784] softirqs last disabled at (6082): [] tcf_ife_cleanup+0x39/0x200 [act_ife] [ 646.878845] ---[ end trace b1b8c12ffe51e657 ]--- Fixes: 5ffe57da29b3 ("act_ife: fix a potential deadlock") Signed-off-by: Vlad Buslov Acked-by: Cong Wang Signed-off-by: David S. Miller --- net/sched/act_ife.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/net/sched/act_ife.c b/net/sched/act_ife.c index fc412769a1be..06a3d4801878 100644 --- a/net/sched/act_ife.c +++ b/net/sched/act_ife.c @@ -326,6 +326,20 @@ static int __add_metainfo(const struct tcf_meta_ops *ops, return ret; } +static int add_metainfo_and_get_ops(const struct tcf_meta_ops *ops, + struct tcf_ife_info *ife, u32 metaid, + bool exists) +{ + int ret; + + if (!try_module_get(ops->owner)) + return -ENOENT; + ret = __add_metainfo(ops, ife, metaid, NULL, 0, true, exists); + if (ret) + module_put(ops->owner); + return ret; +} + static int add_metainfo(struct tcf_ife_info *ife, u32 metaid, void *metaval, int len, bool exists) { @@ -349,7 +363,7 @@ static int use_all_metadata(struct tcf_ife_info *ife, bool exists) read_lock(&ife_mod_lock); list_for_each_entry(o, &ifeoplist, list) { - rc = __add_metainfo(o, ife, o->metaid, NULL, 0, true, exists); + rc = add_metainfo_and_get_ops(o, ife, o->metaid, exists); if (rc == 0) installed += 1; } From a33710bdb6b284f8f1e24f1119d167037b374ebb Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Tue, 4 Sep 2018 04:23:56 +0200 Subject: [PATCH 0594/1762] net: phy: sfp: Handle unimplemented hwmon limits and alarms Not all SFPs implement the registers containing sensor limits and alarms. Luckily, there is a bit indicating if they are implemented or not. Add checking for this bit, when deciding if the hwmon attributes should be visible. Fixes: 1323061a018a ("net: phy: sfp: Add HWMON support for module sensors") Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/phy/sfp.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c index 4637d980310e..52fffb98fde9 100644 --- a/drivers/net/phy/sfp.c +++ b/drivers/net/phy/sfp.c @@ -398,7 +398,6 @@ static umode_t sfp_hwmon_is_visible(const void *data, switch (type) { case hwmon_temp: switch (attr) { - case hwmon_temp_input: case hwmon_temp_min_alarm: case hwmon_temp_max_alarm: case hwmon_temp_lcrit_alarm: @@ -407,13 +406,16 @@ static umode_t sfp_hwmon_is_visible(const void *data, case hwmon_temp_max: case hwmon_temp_lcrit: case hwmon_temp_crit: + if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) + return 0; + /* fall through */ + case hwmon_temp_input: return 0444; default: return 0; } case hwmon_in: switch (attr) { - case hwmon_in_input: case hwmon_in_min_alarm: case hwmon_in_max_alarm: case hwmon_in_lcrit_alarm: @@ -422,13 +424,16 @@ static umode_t sfp_hwmon_is_visible(const void *data, case hwmon_in_max: case hwmon_in_lcrit: case hwmon_in_crit: + if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) + return 0; + /* fall through */ + case hwmon_in_input: return 0444; default: return 0; } case hwmon_curr: switch (attr) { - case hwmon_curr_input: case hwmon_curr_min_alarm: case hwmon_curr_max_alarm: case hwmon_curr_lcrit_alarm: @@ -437,6 +442,10 @@ static umode_t sfp_hwmon_is_visible(const void *data, case hwmon_curr_max: case hwmon_curr_lcrit: case hwmon_curr_crit: + if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) + return 0; + /* fall through */ + case hwmon_curr_input: return 0444; default: return 0; @@ -452,7 +461,6 @@ static umode_t sfp_hwmon_is_visible(const void *data, channel == 1) return 0; switch (attr) { - case hwmon_power_input: case hwmon_power_min_alarm: case hwmon_power_max_alarm: case hwmon_power_lcrit_alarm: @@ -461,6 +469,10 @@ static umode_t sfp_hwmon_is_visible(const void *data, case hwmon_power_max: case hwmon_power_lcrit: case hwmon_power_crit: + if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) + return 0; + /* fall through */ + case hwmon_power_input: return 0444; default: return 0; From ec6adef5fbc3f140c70e7499fdad818acb3a46c6 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Tue, 4 Sep 2018 15:31:12 +0200 Subject: [PATCH 0595/1762] HID: multitouch: fix Elan panels with 2 input modes declaration When implementing commit 7f81c8db5489 ("HID: multitouch: simplify the settings of the various features"), I wrongly removed a test that made sure we never try to set the second InputMode feature to something else than 0. This broke badly some recent Elan panels that now forget to send the click button in some area of the touchpad. Link: https://bugzilla.kernel.org/show_bug.cgi?id=200899 Fixes: 7f81c8db5489 ("HID: multitouch: simplify the settings of the various features") Cc: stable@vger.kernel.org # v4.18+ Signed-off-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-multitouch.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 40fbb7c52723..88da991ef256 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -1375,7 +1375,8 @@ static bool mt_need_to_apply_feature(struct hid_device *hdev, struct hid_usage *usage, enum latency_mode latency, bool surface_switch, - bool button_switch) + bool button_switch, + bool *inputmode_found) { struct mt_device *td = hid_get_drvdata(hdev); struct mt_class *cls = &td->mtclass; @@ -1387,6 +1388,14 @@ static bool mt_need_to_apply_feature(struct hid_device *hdev, switch (usage->hid) { case HID_DG_INPUTMODE: + /* + * Some elan panels wrongly declare 2 input mode features, + * and silently ignore when we set the value in the second + * field. Skip the second feature and hope for the best. + */ + if (*inputmode_found) + return false; + if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) { report_len = hid_report_len(report); buf = hid_alloc_report_buf(report, GFP_KERNEL); @@ -1402,6 +1411,7 @@ static bool mt_need_to_apply_feature(struct hid_device *hdev, } field->value[index] = td->inputmode_value; + *inputmode_found = true; return true; case HID_DG_CONTACTMAX: @@ -1439,6 +1449,7 @@ static void mt_set_modes(struct hid_device *hdev, enum latency_mode latency, struct hid_usage *usage; int i, j; bool update_report; + bool inputmode_found = false; rep_enum = &hdev->report_enum[HID_FEATURE_REPORT]; list_for_each_entry(rep, &rep_enum->report_list, list) { @@ -1457,7 +1468,8 @@ static void mt_set_modes(struct hid_device *hdev, enum latency_mode latency, usage, latency, surface_switch, - button_switch)) + button_switch, + &inputmode_found)) update_report = true; } } From 0d6c3011409135ea84e2a231b013a22017ff999a Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Tue, 4 Sep 2018 15:31:14 +0200 Subject: [PATCH 0596/1762] HID: core: fix grouping by application commit f07b3c1da92d ("HID: generic: create one input report per application type") was effectively the same as MULTI_INPUT: hidinput->report was never set, so hidinput_match_application() always returned null. Fix that by testing against the real application. Note that this breaks some old eGalax touchscreens that expect MULTI_INPUT instead of HID_QUIRK_INPUT_PER_APP. Enable this quirk for backward compatibility on all non-Win8 touchscreens. link: https://bugzilla.kernel.org/show_bug.cgi?id=200847 link: https://bugzilla.kernel.org/show_bug.cgi?id=200849 link: https://bugs.archlinux.org/task/59699 link: https://github.com/NixOS/nixpkgs/issues/45165 Cc: stable@vger.kernel.org # v4.18+ Signed-off-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-input.c | 4 ++-- drivers/hid/hid-multitouch.c | 3 +++ include/linux/hid.h | 1 + 3 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index ac201817a2dd..a481eaf39e88 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -1582,6 +1582,7 @@ static struct hid_input *hidinput_allocate(struct hid_device *hid, input_dev->dev.parent = &hid->dev; hidinput->input = input_dev; + hidinput->application = application; list_add_tail(&hidinput->list, &hid->inputs); INIT_LIST_HEAD(&hidinput->reports); @@ -1677,8 +1678,7 @@ static struct hid_input *hidinput_match_application(struct hid_report *report) struct hid_input *hidinput; list_for_each_entry(hidinput, &hid->inputs, list) { - if (hidinput->report && - hidinput->report->application == report->application) + if (hidinput->application == report->application) return hidinput; } diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 88da991ef256..da954f3f4da7 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -1697,6 +1697,9 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) */ hdev->quirks |= HID_QUIRK_INPUT_PER_APP; + if (id->group != HID_GROUP_MULTITOUCH_WIN_8) + hdev->quirks |= HID_QUIRK_MULTI_INPUT; + timer_setup(&td->release_timer, mt_expired_timeout, 0); ret = hid_parse(hdev); diff --git a/include/linux/hid.h b/include/linux/hid.h index 834e6461a690..d44a78362942 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -526,6 +526,7 @@ struct hid_input { const char *name; bool registered; struct list_head reports; /* the list of reports */ + unsigned int application; /* application usage for this input */ }; enum hid_type { From 2820a708d5a321342bef34e459fdc8679c30e20f Mon Sep 17 00:00:00 2001 From: Eugeniy Paltsev Date: Mon, 30 Jul 2018 19:26:34 +0300 Subject: [PATCH 0597/1762] ARC: dma [IOC] Enable per device io coherency So far the IOC treatment was global on ARC, being turned on (or off) for all devices in the system. With this patch, this can now be done per device using the "dma-coherent" DT property; IOW with this patch we can use both HW-coherent and regular DMA peripherals simultaneously. The changes involved are too many so enlisting the summary below: 1. common code calls ARC arch_setup_dma_ops() per device. 2. For coherent dma (IOC) it plugs in generic @dma_direct_ops which doesn't need any arch specific backend: No need for any explicit cache flushes or MMU mappings to provide for uncached access - dma_(map|sync)_single* return early as corresponding dma ops callbacks are NULL in generic code. So arch_sync_dma_*() -> dma_cache_*() need not handle the coherent dma case, hence drop ARC __dma_cache_*_ioc() which were no-op anyways 3. For noncoherent dma (non IOC) generic @dma_noncoherent_ops is used which in turns calls ARC specific routines - arch_dma_alloc() no longer checks for @ioc_enable since this is called only for !IOC case. Reviewed-by: Christoph Hellwig Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta [vgupta: rewrote changelog] --- arch/arc/include/asm/dma-mapping.h | 13 +++++++ arch/arc/mm/cache.c | 23 +++++-------- arch/arc/mm/dma.c | 54 ++++++++++++++++-------------- 3 files changed, 50 insertions(+), 40 deletions(-) create mode 100644 arch/arc/include/asm/dma-mapping.h diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h new file mode 100644 index 000000000000..c946c0a83e76 --- /dev/null +++ b/arch/arc/include/asm/dma-mapping.h @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0 +// (C) 2018 Synopsys, Inc. (www.synopsys.com) + +#ifndef ASM_ARC_DMA_MAPPING_H +#define ASM_ARC_DMA_MAPPING_H + +#include + +void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, + const struct iommu_ops *iommu, bool coherent); +#define arch_setup_dma_ops arch_setup_dma_ops + +#endif diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c index 25c631942500..2d389cab46ba 100644 --- a/arch/arc/mm/cache.c +++ b/arch/arc/mm/cache.c @@ -65,7 +65,7 @@ char *arc_cache_mumbojumbo(int c, char *buf, int len) n += scnprintf(buf + n, len - n, "Peripherals\t: %#lx%s%s\n", perip_base, - IS_AVAIL3(ioc_exists, ioc_enable, ", IO-Coherency ")); + IS_AVAIL3(ioc_exists, ioc_enable, ", IO-Coherency (per-device) ")); return buf; } @@ -896,15 +896,6 @@ static void __dma_cache_wback_slc(phys_addr_t start, unsigned long sz) slc_op(start, sz, OP_FLUSH); } -/* - * DMA ops for systems with IOC - * IOC hardware snoops all DMA traffic keeping the caches consistent with - * memory - eliding need for any explicit cache maintenance of DMA buffers - */ -static void __dma_cache_wback_inv_ioc(phys_addr_t start, unsigned long sz) {} -static void __dma_cache_inv_ioc(phys_addr_t start, unsigned long sz) {} -static void __dma_cache_wback_ioc(phys_addr_t start, unsigned long sz) {} - /* * Exported DMA API */ @@ -1264,11 +1255,7 @@ void __init arc_cache_init_master(void) if (is_isa_arcv2() && ioc_enable) arc_ioc_setup(); - if (is_isa_arcv2() && ioc_enable) { - __dma_cache_wback_inv = __dma_cache_wback_inv_ioc; - __dma_cache_inv = __dma_cache_inv_ioc; - __dma_cache_wback = __dma_cache_wback_ioc; - } else if (is_isa_arcv2() && l2_line_sz && slc_enable) { + if (is_isa_arcv2() && l2_line_sz && slc_enable) { __dma_cache_wback_inv = __dma_cache_wback_inv_slc; __dma_cache_inv = __dma_cache_inv_slc; __dma_cache_wback = __dma_cache_wback_slc; @@ -1277,6 +1264,12 @@ void __init arc_cache_init_master(void) __dma_cache_inv = __dma_cache_inv_l1; __dma_cache_wback = __dma_cache_wback_l1; } + /* + * In case of IOC (say IOC+SLC case), pointers above could still be set + * but end up not being relevant as the first function in chain is not + * called at all for @dma_direct_ops + * arch_sync_dma_for_cpu() -> dma_cache_*() -> __dma_cache_*() + */ } void __ref arc_cache_init(void) diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c index ec47e6079f5d..c0b49399225d 100644 --- a/arch/arc/mm/dma.c +++ b/arch/arc/mm/dma.c @@ -6,20 +6,17 @@ * published by the Free Software Foundation. */ -/* - * DMA Coherent API Notes - * - * I/O is inherently non-coherent on ARC. So a coherent DMA buffer is - * implemented by accessing it using a kernel virtual address, with - * Cache bit off in the TLB entry. - * - * The default DMA address == Phy address which is 0x8000_0000 based. - */ - #include #include #include +/* + * ARCH specific callbacks for generic noncoherent DMA ops (dma/noncoherent.c) + * - hardware IOC not available (or "dma-coherent" not set for device in DT) + * - But still handle both coherent and non-coherent requests from caller + * + * For DMA coherent hardware (IOC) generic code suffices + */ void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs) { @@ -33,19 +30,7 @@ void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, if (!page) return NULL; - /* - * IOC relies on all data (even coherent DMA data) being in cache - * Thus allocate normal cached memory - * - * The gains with IOC are two pronged: - * -For streaming data, elides need for cache maintenance, saving - * cycles in flush code, and bus bandwidth as all the lines of a - * buffer need to be flushed out to memory - * -For coherent data, Read/Write to buffers terminate early in cache - * (vs. always going to memory - thus are faster) - */ - if ((is_isa_arcv2() && ioc_enable) || - (attrs & DMA_ATTR_NON_CONSISTENT)) + if (attrs & DMA_ATTR_NON_CONSISTENT) need_coh = 0; /* @@ -95,8 +80,7 @@ void arch_dma_free(struct device *dev, size_t size, void *vaddr, struct page *page = virt_to_page(paddr); int is_non_coh = 1; - is_non_coh = (attrs & DMA_ATTR_NON_CONSISTENT) || - (is_isa_arcv2() && ioc_enable); + is_non_coh = (attrs & DMA_ATTR_NON_CONSISTENT); if (PageHighMem(page) || !is_non_coh) iounmap((void __force __iomem *)vaddr); @@ -185,3 +169,23 @@ void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr, break; } } + +/* + * Plug in coherent or noncoherent dma ops + */ +void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, + const struct iommu_ops *iommu, bool coherent) +{ + /* + * IOC hardware snoops all DMA traffic keeping the caches consistent + * with memory - eliding need for any explicit cache maintenance of + * DMA buffers - so we can use dma_direct cache ops. + */ + if (is_isa_arcv2() && ioc_enable && coherent) { + set_dma_ops(dev, &dma_direct_ops); + dev_info(dev, "use dma_direct_ops cache ops\n"); + } else { + set_dma_ops(dev, &dma_noncoherent_ops); + dev_info(dev, "use dma_noncoherent_ops cache ops\n"); + } +} From 2b720e99a1297417b979bf4810a0f01d27133c48 Mon Sep 17 00:00:00 2001 From: Eugeniy Paltsev Date: Mon, 30 Jul 2018 19:26:35 +0300 Subject: [PATCH 0598/1762] ARC: IOC: panic if both IOC and ZONE_HIGHMEM enabled Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta --- arch/arc/mm/cache.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c index 2d389cab46ba..f2701c13a66b 100644 --- a/arch/arc/mm/cache.c +++ b/arch/arc/mm/cache.c @@ -1144,6 +1144,19 @@ noinline void __init arc_ioc_setup(void) { unsigned int ioc_base, mem_sz; + /* + * As for today we don't support both IOC and ZONE_HIGHMEM enabled + * simultaneously. This happens because as of today IOC aperture covers + * only ZONE_NORMAL (low mem) and any dma transactions outside this + * region won't be HW coherent. + * If we want to use both IOC and ZONE_HIGHMEM we can use + * bounce_buffer to handle dma transactions to HIGHMEM. + * Also it is possible to modify dma_direct cache ops or increase IOC + * aperture size if we are planning to use HIGHMEM without PAE. + */ + if (IS_ENABLED(CONFIG_HIGHMEM)) + panic("IOC and HIGHMEM can't be used simultaneously"); + /* Flush + invalidate + disable L1 dcache */ __dc_disable(); From dd45210b6dd4f1512eafcc41774154ebb762360f Mon Sep 17 00:00:00 2001 From: Eugeniy Paltsev Date: Mon, 30 Jul 2018 19:26:36 +0300 Subject: [PATCH 0599/1762] ARC: don't check for HIGHMEM pages in arch_dma_alloc __GFP_HIGHMEM flag is cleared by upper layer functions (in include/linux/dma-mapping.h) so we'll never get a __GFP_HIGHMEM flag in arch_dma_alloc gfp argument. That's why alloc_pages will never return highmem page here. Get rid of highmem pages handling and cleanup arch_dma_alloc and arch_dma_free functions. Reviewed-by: Christoph Hellwig Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta --- arch/arc/mm/dma.c | 32 ++++++++++++++------------------ 1 file changed, 14 insertions(+), 18 deletions(-) diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c index c0b49399225d..c75d5c3470e3 100644 --- a/arch/arc/mm/dma.c +++ b/arch/arc/mm/dma.c @@ -24,30 +24,29 @@ void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, struct page *page; phys_addr_t paddr; void *kvaddr; - int need_coh = 1, need_kvaddr = 0; + bool need_coh = !(attrs & DMA_ATTR_NON_CONSISTENT); + + /* + * __GFP_HIGHMEM flag is cleared by upper layer functions + * (in include/linux/dma-mapping.h) so we should never get a + * __GFP_HIGHMEM here. + */ + BUG_ON(gfp & __GFP_HIGHMEM); page = alloc_pages(gfp, order); if (!page) return NULL; - if (attrs & DMA_ATTR_NON_CONSISTENT) - need_coh = 0; - - /* - * - A coherent buffer needs MMU mapping to enforce non-cachability - * - A highmem page needs a virtual handle (hence MMU mapping) - * independent of cachability - */ - if (PageHighMem(page) || need_coh) - need_kvaddr = 1; - /* This is linear addr (0x8000_0000 based) */ paddr = page_to_phys(page); *dma_handle = paddr; - /* This is kernel Virtual address (0x7000_0000 based) */ - if (need_kvaddr) { + /* + * A coherent buffer needs MMU mapping to enforce non-cachability. + * kvaddr is kernel Virtual address (0x7000_0000 based). + */ + if (need_coh) { kvaddr = ioremap_nocache(paddr, size); if (kvaddr == NULL) { __free_pages(page, order); @@ -78,11 +77,8 @@ void arch_dma_free(struct device *dev, size_t size, void *vaddr, { phys_addr_t paddr = dma_handle; struct page *page = virt_to_page(paddr); - int is_non_coh = 1; - is_non_coh = (attrs & DMA_ATTR_NON_CONSISTENT); - - if (PageHighMem(page) || !is_non_coh) + if (!(attrs & DMA_ATTR_NON_CONSISTENT)) iounmap((void __force __iomem *)vaddr); __free_pages(page, get_order(size)); From 0d23ba6034b9cf48b8918404367506da3e4b3ee5 Mon Sep 17 00:00:00 2001 From: Jann Horn Date: Mon, 3 Sep 2018 18:54:14 +0200 Subject: [PATCH 0600/1762] RDMA/ucma: check fd type in ucma_migrate_id() The current code grabs the private_data of whatever file descriptor userspace has supplied and implicitly casts it to a `struct ucma_file *`, potentially causing a type confusion. This is probably fine in practice because the pointer is only used for comparisons, it is never actually dereferenced; and even in the comparisons, it is unlikely that a file from another filesystem would have a ->private_data pointer that happens to also be valid in this context. But ->private_data is not always guaranteed to be a valid pointer to an object owned by the file's filesystem; for example, some filesystems just cram numbers in there. Check the type of the supplied file descriptor to be safe, analogous to how other places in the kernel do it. Fixes: 88314e4dda1e ("RDMA/cma: add support for rdma_migrate_id()") Signed-off-by: Jann Horn Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/ucma.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index ec8fb289621f..5f437d1570fb 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -124,6 +124,8 @@ static DEFINE_MUTEX(mut); static DEFINE_IDR(ctx_idr); static DEFINE_IDR(multicast_idr); +static const struct file_operations ucma_fops; + static inline struct ucma_context *_ucma_find_context(int id, struct ucma_file *file) { @@ -1581,6 +1583,10 @@ static ssize_t ucma_migrate_id(struct ucma_file *new_file, f = fdget(cmd.fd); if (!f.file) return -ENOENT; + if (f.file->f_op != &ucma_fops) { + ret = -EINVAL; + goto file_put; + } /* Validate current fd and prevent destruction of id. */ ctx = ucma_get_ctx(f.file->private_data, cmd.id); From e4ff3d22c11dd505353896cdcad0ee8f3251be68 Mon Sep 17 00:00:00 2001 From: Artemy Kovalyov Date: Tue, 28 Aug 2018 14:40:32 +0300 Subject: [PATCH 0601/1762] IB/core: Release object lock if destroy failed The object lock was supposed to always be released during destroy, but when the destruction retry series was integrated with the destroy series it created a failure path that missed the unlock. Keep with convention, if destroy fails the caller must undo all locking. Fixes: 87ad80abc70d ("IB/uverbs: Consolidate uobject destruction") Signed-off-by: Artemy Kovalyov Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/rdma_core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/infiniband/core/rdma_core.c b/drivers/infiniband/core/rdma_core.c index 6eb64c6f0802..c4118bcd5103 100644 --- a/drivers/infiniband/core/rdma_core.c +++ b/drivers/infiniband/core/rdma_core.c @@ -882,6 +882,8 @@ static int __uverbs_cleanup_ufile(struct ib_uverbs_file *ufile, WARN_ON(uverbs_try_lock_object(obj, UVERBS_LOOKUP_WRITE)); if (!uverbs_destroy_uobject(obj, reason)) ret = 0; + else + atomic_set(&obj->usecnt, 0); } return ret; } From 308aa2b8f7b7db3332a7d41099fd37851fb793b2 Mon Sep 17 00:00:00 2001 From: Steve Wise Date: Fri, 31 Aug 2018 07:15:56 -0700 Subject: [PATCH 0602/1762] iw_cxgb4: only allow 1 flush on user qps Once the qp has been flushed, it cannot be flushed again. The user qp flush logic wasn't enforcing it however. The bug can cause touch-after-free crashes like: Unable to handle kernel paging request for data at address 0x000001ec Faulting instruction address: 0xc008000016069100 Oops: Kernel access of bad area, sig: 11 [#1] ... NIP [c008000016069100] flush_qp+0x80/0x480 [iw_cxgb4] LR [c00800001606cd6c] c4iw_modify_qp+0x71c/0x11d0 [iw_cxgb4] Call Trace: [c00800001606cd6c] c4iw_modify_qp+0x71c/0x11d0 [iw_cxgb4] [c00800001606e868] c4iw_ib_modify_qp+0x118/0x200 [iw_cxgb4] [c0080000119eae80] ib_security_modify_qp+0xd0/0x3d0 [ib_core] [c0080000119c4e24] ib_modify_qp+0xc4/0x2c0 [ib_core] [c008000011df0284] iwcm_modify_qp_err+0x44/0x70 [iw_cm] [c008000011df0fec] destroy_cm_id+0xcc/0x370 [iw_cm] [c008000011ed4358] rdma_destroy_id+0x3c8/0x520 [rdma_cm] [c0080000134b0540] ucma_close+0x90/0x1b0 [rdma_ucm] [c000000000444da4] __fput+0xe4/0x2f0 So fix flush_qp() to only flush the wq once. Cc: stable@vger.kernel.org Signed-off-by: Steve Wise Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/cxgb4/qp.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index b3203afa3b1d..347fe18b1a41 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -1685,6 +1685,12 @@ static void flush_qp(struct c4iw_qp *qhp) schp = to_c4iw_cq(qhp->ibqp.send_cq); if (qhp->ibqp.uobject) { + + /* for user qps, qhp->wq.flushed is protected by qhp->mutex */ + if (qhp->wq.flushed) + return; + + qhp->wq.flushed = 1; t4_set_wq_in_error(&qhp->wq, 0); t4_set_cq_in_error(&rchp->cq); spin_lock_irqsave(&rchp->comp_handler_lock, flag); From 3100dab2aa09dc6e082956e306fc9f81b3cc0f7a Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Tue, 4 Sep 2018 15:45:34 -0700 Subject: [PATCH 0603/1762] mm: memcontrol: print proper OOM header when no eligible victim left When the memcg OOM killer runs out of killable tasks, it currently prints a WARN with no further OOM context. This has caused some user confusion. Warnings indicate a kernel problem. In a reported case, however, the situation was triggered by a nonsensical memcg configuration (hard limit set to 0). But without any VM context this wasn't obvious from the report, and it took some back and forth on the mailing list to identify what is actually a trivial issue. Handle this OOM condition like we handle it in the global OOM killer: dump the full OOM context and tell the user we ran out of tasks. This way the user can identify misconfigurations easily by themselves and rectify the problem - without having to go through the hassle of running into an obscure but unsettling warning, finding the appropriate kernel mailing list and waiting for a kernel developer to remote-analyze that the memcg configuration caused this. If users cannot make sense of why the OOM killer was triggered or why it failed, they will still report it to the mailing list, we know that from experience. So in case there is an actual kernel bug causing this, kernel developers will very likely hear about it. Link: http://lkml.kernel.org/r/20180821160406.22578-1-hannes@cmpxchg.org Signed-off-by: Johannes Weiner Acked-by: Michal Hocko Cc: Dmitry Vyukov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 2 -- mm/oom_kill.c | 13 ++++++++++--- 2 files changed, 10 insertions(+), 5 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 4ead5a4817de..e79cb59552d9 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1701,8 +1701,6 @@ static enum oom_status mem_cgroup_oom(struct mem_cgroup *memcg, gfp_t mask, int if (mem_cgroup_out_of_memory(memcg, mask, order)) return OOM_SUCCESS; - WARN(1,"Memory cgroup charge failed because of no reclaimable memory! " - "This looks like a misconfiguration or a kernel bug."); return OOM_FAILED; } diff --git a/mm/oom_kill.c b/mm/oom_kill.c index b5b25e4dcbbb..95fbbc46f68f 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -1103,10 +1103,17 @@ bool out_of_memory(struct oom_control *oc) } select_bad_process(oc); - /* Found nothing?!?! Either we hang forever, or we panic. */ - if (!oc->chosen && !is_sysrq_oom(oc) && !is_memcg_oom(oc)) { + /* Found nothing?!?! */ + if (!oc->chosen) { dump_header(oc, NULL); - panic("Out of memory and no killable processes...\n"); + pr_warn("Out of memory and no killable processes...\n"); + /* + * If we got here due to an actual allocation at the + * system level, we cannot survive this and will enter + * an endless loop in the allocator. Bail out now. + */ + if (!is_sysrq_oom(oc) && !is_memcg_oom(oc)) + panic("System is deadlocked on memory\n"); } if (oc->chosen && oc->chosen != (void *)-1UL) oom_kill_process(oc, !is_memcg_oom(oc) ? "Out of memory" : From 79cc81057eef7ad846588976296ab0f266c1a7a5 Mon Sep 17 00:00:00 2001 From: Tetsuo Handa Date: Tue, 4 Sep 2018 15:45:37 -0700 Subject: [PATCH 0604/1762] mm, oom: fix missing tlb_finish_mmu() in __oom_reap_task_mm(). Commit 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers") has added an ability to skip over vmas with blockable mmu notifiers. This however didn't call tlb_finish_mmu as it should. As a result inc_tlb_flush_pending has been called without its pairing dec_tlb_flush_pending and all callers mm_tlb_flush_pending would flush even though this is not really needed. This alone is not harmful and it seems there shouldn't be any such callers for oom victims at all but there is no real reason to skip tlb_finish_mmu on early skip either so call it. [mhocko@suse.com: new changelog] Link: http://lkml.kernel.org/r/b752d1d5-81ad-7a35-2394-7870641be51c@i-love.sakura.ne.jp Signed-off-by: Tetsuo Handa Acked-by: Michal Hocko Cc: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/oom_kill.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 95fbbc46f68f..f10aa5360616 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -522,6 +522,7 @@ bool __oom_reap_task_mm(struct mm_struct *mm) tlb_gather_mmu(&tlb, mm, start, end); if (mmu_notifier_invalidate_range_start_nonblock(mm, start, end)) { + tlb_finish_mmu(&tlb, start, end); ret = false; continue; } From 1ed0cc5a01a4d868d9907ce96468c4b4c6709556 Mon Sep 17 00:00:00 2001 From: Nadav Amit Date: Tue, 4 Sep 2018 15:45:41 -0700 Subject: [PATCH 0605/1762] mm: respect arch_dup_mmap() return value Commit d70f2a14b72a ("include/linux/sched/mm.h: uninline mmdrop_async(), etc") ignored the return value of arch_dup_mmap(). As a result, on x86, a failure to duplicate the LDT (e.g. due to memory allocation error) would leave the duplicated memory mapping in an inconsistent state. Fix by using the return value, as it was before the change. Link: http://lkml.kernel.org/r/20180823051229.211856-1-namit@vmware.com Fixes: d70f2a14b72a4 ("include/linux/sched/mm.h: uninline mmdrop_async(), etc") Signed-off-by: Nadav Amit Acked-by: Michal Hocko Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/fork.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/fork.c b/kernel/fork.c index d896e9ca38b0..f0b58479534f 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -550,8 +550,7 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm, goto out; } /* a new mm has just been created */ - arch_dup_mmap(oldmm, mm); - retval = 0; + retval = arch_dup_mmap(oldmm, mm); out: up_write(&mm->mmap_sem); flush_tlb_mm(oldmm); From b353756b2b71915e81ed41239292306622d08c9f Mon Sep 17 00:00:00 2001 From: Vincent Whitchurch Date: Tue, 4 Sep 2018 15:45:44 -0700 Subject: [PATCH 0606/1762] kmemleak: always register debugfs file If kmemleak built in to the kernel, but is disabled by default, the debugfs file is never registered. Because of this, it is not possible to find out if the kernel is built with kmemleak support by checking for the presence of this file. To allow this, always register the file. After this patch, if the file doesn't exist, kmemleak is not available in the kernel. If writing "scan" or any other value than "clear" to this file results in EBUSY, then kmemleak is available but is disabled by default and can be activated via the kernel command line. Catalin: "that's also consistent with a late disabling of kmemleak when the debugfs entry sticks around." Link: http://lkml.kernel.org/r/20180824131220.19176-1-vincent.whitchurch@axis.com Signed-off-by: Vincent Whitchurch Acked-by: Catalin Marinas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/kmemleak.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/mm/kmemleak.c b/mm/kmemleak.c index 9a085d525bbc..17dd883198ae 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -2097,6 +2097,11 @@ static int __init kmemleak_late_init(void) kmemleak_initialized = 1; + dentry = debugfs_create_file("kmemleak", 0644, NULL, NULL, + &kmemleak_fops); + if (!dentry) + pr_warn("Failed to create the debugfs kmemleak file\n"); + if (kmemleak_error) { /* * Some error occurred and kmemleak was disabled. There is a @@ -2108,10 +2113,6 @@ static int __init kmemleak_late_init(void) return -ENOMEM; } - dentry = debugfs_create_file("kmemleak", 0644, NULL, NULL, - &kmemleak_fops); - if (!dentry) - pr_warn("Failed to create the debugfs kmemleak file\n"); mutex_lock(&scan_mutex); start_scan_thread(); mutex_unlock(&scan_mutex); From 904506562e0856f2535d876407d087c9459d345b Mon Sep 17 00:00:00 2001 From: Naoya Horiguchi Date: Tue, 4 Sep 2018 15:45:48 -0700 Subject: [PATCH 0607/1762] tools/vm/slabinfo.c: fix sign-compare warning Currently we get the following compiler warning: slabinfo.c:854:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (s->object_size < min_objsize) ^ due to the mismatch of signed/unsigned comparison. ->object_size and ->slab_size are never expected to be negative, so let's define them as unsigned int. [n-horiguchi@ah.jp.nec.com: convert everything - none of these can be negative] Link: http://lkml.kernel.org/r/20180826234947.GA9787@hori1.linux.bs1.fc.nec.co.jp Link: http://lkml.kernel.org/r/1535103134-20239-1-git-send-email-n-horiguchi@ah.jp.nec.com Signed-off-by: Naoya Horiguchi Reviewed-by: Andrew Morton Cc: Matthew Wilcox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- tools/vm/slabinfo.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c index f82c2eaa859d..334b16db0ebb 100644 --- a/tools/vm/slabinfo.c +++ b/tools/vm/slabinfo.c @@ -30,8 +30,8 @@ struct slabinfo { int alias; int refs; int aliases, align, cache_dma, cpu_slabs, destroy_by_rcu; - int hwcache_align, object_size, objs_per_slab; - int sanity_checks, slab_size, store_user, trace; + unsigned int hwcache_align, object_size, objs_per_slab; + unsigned int sanity_checks, slab_size, store_user, trace; int order, poison, reclaim_account, red_zone; unsigned long partial, objects, slabs, objects_partial, objects_total; unsigned long alloc_fastpath, alloc_slowpath; From 7ab660f8baecfe26c1c267fa8e64d2073feae2bb Mon Sep 17 00:00:00 2001 From: Naoya Horiguchi Date: Tue, 4 Sep 2018 15:45:51 -0700 Subject: [PATCH 0608/1762] tools/vm/page-types.c: fix "defined but not used" warning debugfs_known_mountpoints[] is not used any more, so let's remove it. Link: http://lkml.kernel.org/r/1535102651-19418-1-git-send-email-n-horiguchi@ah.jp.nec.com Signed-off-by: Naoya Horiguchi Reviewed-by: Andrew Morton Cc: Matthew Wilcox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- tools/vm/page-types.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/tools/vm/page-types.c b/tools/vm/page-types.c index 30cb0a0713ff..37908a83ddc2 100644 --- a/tools/vm/page-types.c +++ b/tools/vm/page-types.c @@ -159,12 +159,6 @@ static const char * const page_flag_names[] = { }; -static const char * const debugfs_known_mountpoints[] = { - "/sys/kernel/debug", - "/debug", - 0, -}; - /* * data structures */ From 04b8e946075d4582093e84f54dc1a004b227794d Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 4 Sep 2018 15:45:55 -0700 Subject: [PATCH 0609/1762] mm/util.c: improve kvfree() kerneldoc Scooped from an email from Matthew. Cc: Mike Rapoport Cc: Jonathan Corbet Cc: Matthew Wilcox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/util.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/mm/util.c b/mm/util.c index d2890a407332..9e3ebd2ef65f 100644 --- a/mm/util.c +++ b/mm/util.c @@ -435,11 +435,14 @@ void *kvmalloc_node(size_t size, gfp_t flags, int node) EXPORT_SYMBOL(kvmalloc_node); /** - * kvfree - free memory allocated with kvmalloc - * @addr: pointer returned by kvmalloc + * kvfree() - Free memory. + * @addr: Pointer to allocated memory. * - * If the memory is allocated from vmalloc area it is freed with vfree(). - * Otherwise kfree() is used. + * kvfree frees memory allocated by any of vmalloc(), kmalloc() or kvmalloc(). + * It is slightly more efficient to use kfree() or vfree() if you are certain + * that you know which one to use. + * + * Context: Any context except NMI. */ void kvfree(const void *addr) { From 464c7ffbcb164b2e5cebfa406b7fc6cdb7945344 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Tue, 4 Sep 2018 15:45:59 -0700 Subject: [PATCH 0610/1762] mm/hugetlb: filter out hugetlb pages if HUGEPAGE migration is not supported. When scanning for movable pages, filter out Hugetlb pages if hugepage migration is not supported. Without this we hit infinte loop in __offline_pages() where we do pfn = scan_movable_pages(start_pfn, end_pfn); if (pfn) { /* We have movable pages */ ret = do_migrate_range(pfn, end_pfn); goto repeat; } Fix this by checking hugepage_migration_supported both in has_unmovable_pages which is the primary backoff mechanism for page offlining and for consistency reasons also into scan_movable_pages because it doesn't make any sense to return a pfn to non-migrateable huge page. This issue was revealed by, but not caused by 72b39cfc4d75 ("mm, memory_hotplug: do not fail offlining too early"). Link: http://lkml.kernel.org/r/20180824063314.21981-1-aneesh.kumar@linux.ibm.com Fixes: 72b39cfc4d75 ("mm, memory_hotplug: do not fail offlining too early") Signed-off-by: Aneesh Kumar K.V Reported-by: Haren Myneni Acked-by: Michal Hocko Reviewed-by: Naoya Horiguchi Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memory_hotplug.c | 3 ++- mm/page_alloc.c | 4 ++++ 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 9eea6e809a4e..38d94b703e9d 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1333,7 +1333,8 @@ static unsigned long scan_movable_pages(unsigned long start, unsigned long end) if (__PageMovable(page)) return pfn; if (PageHuge(page)) { - if (page_huge_active(page)) + if (hugepage_migration_supported(page_hstate(page)) && + page_huge_active(page)) return pfn; else pfn = round_up(pfn + 1, diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 05e983f42316..89d2a2ab3fe6 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -7708,6 +7708,10 @@ bool has_unmovable_pages(struct zone *zone, struct page *page, int count, * handle each tail page individually in migration. */ if (PageHuge(page)) { + + if (!hugepage_migration_supported(page_hstate(page))) + goto unmovable; + iter = round_up(iter + 1, 1< Date: Tue, 4 Sep 2018 15:46:02 -0700 Subject: [PATCH 0611/1762] ipc/shm: properly return EIDRM in shm_lock() When getting rid of the general ipc_lock(), this was missed furthermore, making the comment around the ipc object validity check bogus. Under EIDRM conditions, callers will in turn not see the error and continue with the operation. Link: http://lkml.kernel.org/r/20180824030920.GD3677@linux-r8p5 Link: http://lkml.kernel.org/r/20180823024051.GC13343@shao2-debian Fixes: 82061c57ce9 ("ipc: drop ipc_lock()") Signed-off-by: Davidlohr Bueso Reported-by: kernel test robot Cc: Manfred Spraul Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- ipc/shm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/ipc/shm.c b/ipc/shm.c index b0eb3757ab89..4cd402e4cfeb 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -199,6 +199,7 @@ static inline struct shmid_kernel *shm_lock(struct ipc_namespace *ns, int id) } ipc_unlock_object(ipcp); + ipcp = ERR_PTR(-EIDRM); err: rcu_read_unlock(); /* From 328b5f417a4ac929e20d98b989a2babac66c8520 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Tue, 4 Sep 2018 15:46:06 -0700 Subject: [PATCH 0612/1762] checkpatch: add optional static const to blank line declarations test Using a static const struct definition as part of a series of declarations produces a false positive "Missing a blank line after declarations" for code like: WARNING: Missing a blank line after declarations #710: FILE: drivers/gpu/drm/tidss/tidss_scale_coefs.c:137: + int inc; + static const struct { So fix it. Link: http://lkml.kernel.org/r/5905126e70b0ed1781e49265fd5c49c5090d0223.camel@perches.com Signed-off-by: Joe Perches Reported-by: Jyri Sarha Cc: "Valkeinen, Tomi" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- scripts/checkpatch.pl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 5219280bf7ff..b4caee6e269c 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -3311,7 +3311,7 @@ sub process { # known declaration macros $sline =~ /^\+\s+$declaration_macros/ || # start of struct or union or enum - $sline =~ /^\+\s+(?:union|struct|enum|typedef)\b/ || + $sline =~ /^\+\s+(?:static\s+)?(?:const\s+)?(?:union|struct|enum|typedef)\b/ || # start or end of block or continuation of declaration $sline =~ /^\+\s+(?:$|[\{\}\.\#\"\?\:\(\[])/ || # bitfield continuation From 4e8346d0be889c7ab5eb2d3deedc18111d741e99 Mon Sep 17 00:00:00 2001 From: Mikhail Zaslonko Date: Tue, 4 Sep 2018 15:46:09 -0700 Subject: [PATCH 0613/1762] memory_hotplug: fix kernel_panic on offline page processing Within show_valid_zones() the function test_pages_in_a_zone() should be called for online memory blocks only. Otherwise it might lead to the VM_BUG_ON due to uninitialized struct pages (when CONFIG_DEBUG_VM_PGFLAGS kernel option is set): page dumped because: VM_BUG_ON_PAGE(PagePoisoned(p)) ------------[ cut here ]------------ Call Trace: ([<000000000038f91e>] test_pages_in_a_zone+0xe6/0x168) [<0000000000923472>] show_valid_zones+0x5a/0x1a8 [<0000000000900284>] dev_attr_show+0x3c/0x78 [<000000000046f6f0>] sysfs_kf_seq_show+0xd0/0x150 [<00000000003ef662>] seq_read+0x212/0x4b8 [<00000000003bf202>] __vfs_read+0x3a/0x178 [<00000000003bf3ca>] vfs_read+0x8a/0x148 [<00000000003bfa3a>] ksys_read+0x62/0xb8 [<0000000000bc2220>] system_call+0xdc/0x2d8 That VM_BUG_ON was triggered by the page poisoning introduced in mm/sparse.c with the git commit d0dc12e86b31 ("mm/memory_hotplug: optimize memory hotplug"). With the same commit the new 'nid' field has been added to the struct memory_block in order to store and later on derive the node id for offline pages (instead of accessing struct page which might be uninitialized). But one reference to nid in show_valid_zones() function has been overlooked. Fixed with current commit. Also, nr_pages will not be used any more after test_pages_in_a_zone() call, do not update it. Link: http://lkml.kernel.org/r/20180828090539.41491-1-zaslonko@linux.ibm.com Fixes: d0dc12e86b31 ("mm/memory_hotplug: optimize memory hotplug") Signed-off-by: Mikhail Zaslonko Acked-by: Michal Hocko Reviewed-by: Pavel Tatashin Cc: [4.17+] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/base/memory.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) diff --git a/drivers/base/memory.c b/drivers/base/memory.c index c8a1cb0b6136..817320c7c4c1 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -416,26 +416,24 @@ static ssize_t show_valid_zones(struct device *dev, struct zone *default_zone; int nid; - /* - * The block contains more than one zone can not be offlined. - * This can happen e.g. for ZONE_DMA and ZONE_DMA32 - */ - if (!test_pages_in_a_zone(start_pfn, start_pfn + nr_pages, &valid_start_pfn, &valid_end_pfn)) - return sprintf(buf, "none\n"); - - start_pfn = valid_start_pfn; - nr_pages = valid_end_pfn - start_pfn; - /* * Check the existing zone. Make sure that we do that only on the * online nodes otherwise the page_zone is not reliable */ if (mem->state == MEM_ONLINE) { + /* + * The block contains more than one zone can not be offlined. + * This can happen e.g. for ZONE_DMA and ZONE_DMA32 + */ + if (!test_pages_in_a_zone(start_pfn, start_pfn + nr_pages, + &valid_start_pfn, &valid_end_pfn)) + return sprintf(buf, "none\n"); + start_pfn = valid_start_pfn; strcat(buf, page_zone(pfn_to_page(start_pfn))->name); goto out; } - nid = pfn_to_nid(start_pfn); + nid = mem->nid; default_zone = zone_for_pfn_range(MMOP_ONLINE_KEEP, nid, start_pfn, nr_pages); strcat(buf, default_zone->name); From 8a2336e549d385bb0b46880435b411df8d8200e8 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 4 Sep 2018 15:46:13 -0700 Subject: [PATCH 0614/1762] uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name Since this header is in "include/uapi/linux/", apparently people want to use it in userspace programs -- even in C++ ones. However, the header uses a C++ reserved keyword ("private"), so change that to "dh_private" instead to allow the header file to be used in C++ userspace. Fixes https://bugzilla.kernel.org/show_bug.cgi?id=191051 Link: http://lkml.kernel.org/r/0db6c314-1ef4-9bfa-1baa-7214dd2ee061@infradead.org Fixes: ddbb41148724 ("KEYS: Add KEYCTL_DH_COMPUTE command") Signed-off-by: Randy Dunlap Reviewed-by: Andrew Morton Cc: David Howells Cc: James Morris Cc: "Serge E. Hallyn" Cc: Mat Martineau Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/uapi/linux/keyctl.h | 2 +- security/keys/dh.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/include/uapi/linux/keyctl.h b/include/uapi/linux/keyctl.h index 7b8c9e19bad1..910cc4334b21 100644 --- a/include/uapi/linux/keyctl.h +++ b/include/uapi/linux/keyctl.h @@ -65,7 +65,7 @@ /* keyctl structures */ struct keyctl_dh_params { - __s32 private; + __s32 dh_private; __s32 prime; __s32 base; }; diff --git a/security/keys/dh.c b/security/keys/dh.c index 711e89d8c415..3b602a1e27fa 100644 --- a/security/keys/dh.c +++ b/security/keys/dh.c @@ -300,7 +300,7 @@ long __keyctl_dh_compute(struct keyctl_dh_params __user *params, } dh_inputs.g_size = dlen; - dlen = dh_data_from_key(pcopy.private, &dh_inputs.key); + dlen = dh_data_from_key(pcopy.dh_private, &dh_inputs.key); if (dlen < 0) { ret = dlen; goto out2; From 62ec0d8c4f332dedf19d6fad15ddea639044d5fe Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Tue, 4 Sep 2018 15:46:16 -0700 Subject: [PATCH 0615/1762] mm: fix BUG_ON() in vmf_insert_pfn_pud() from VM_MIXEDMAP removal It looks like I missed the PUD path when doing VM_MIXEDMAP removal. This can be triggered by: 1. Boot with memmap=4G!8G 2. build ndctl with destructive flag on 3. make TESTS=device-dax check [ +0.000675] kernel BUG at mm/huge_memory.c:824! Applying the same change that was applied to vmf_insert_pfn_pmd() in the original patch. Link: http://lkml.kernel.org/r/153565957352.35524.1005746906902065126.stgit@djiang5-desk3.ch.intel.com Fixes: e1fb4a08649 ("dax: remove VM_MIXEDMAP for fsdax and device dax") Signed-off-by: Dave Jiang Reported-by: Vishal Verma Tested-by: Vishal Verma Acked-by: Jeff Moyer Reviewed-by: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/huge_memory.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index c3bc7e9c9a2a..533f9b00147d 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -821,11 +821,11 @@ vm_fault_t vmf_insert_pfn_pud(struct vm_area_struct *vma, unsigned long addr, * but we need to be consistent with PTEs and architectures that * can't support a 'special' bit. */ - BUG_ON(!(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP))); + BUG_ON(!(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP)) && + !pfn_t_devmap(pfn)); BUG_ON((vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP)) == (VM_PFNMAP|VM_MIXEDMAP)); BUG_ON((vma->vm_flags & VM_PFNMAP) && is_cow_mapping(vma->vm_flags)); - BUG_ON(!pfn_t_devmap(pfn)); if (addr < vma->vm_start || addr >= vma->vm_end) return VM_FAULT_SIGBUS; From c5967e989f1fe702e75d7405b9251ec7e490d847 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Tue, 4 Sep 2018 15:46:20 -0700 Subject: [PATCH 0616/1762] checkpatch: add __ro_after_init to known $Attribute __ro_after_init is a specific __attribute__ that checkpatch does currently not understand. Add it to the known $Attribute types so that code that uses variables declared with __ro_after_init are not thought to be a modifier type. This appears as a defect in checkpatch output of code like: static bool trust_cpu __ro_after_init = IS_ENABLED(CONFIG_RANDOM_TRUST_CPU); [...] if (trust_cpu && arch_init) { where checkpatch reports: ERROR: space prohibited after that '&&' (ctx:WxW) if (trust_cpu && arch_init) { Link: http://lkml.kernel.org/r/0fa8a2cb83ade4c525e18261ecf6cfede3015983.camel@perches.com Signed-off-by: Joe Perches Reported-by: Kees Cook Tested-by: Kees Cook Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- scripts/checkpatch.pl | 1 + 1 file changed, 1 insertion(+) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index b4caee6e269c..161b0224d6ae 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -380,6 +380,7 @@ our $Attribute = qr{ __noclone| __deprecated| __read_mostly| + __ro_after_init| __kprobes| $InitAttribute| ____cacheline_aligned| From 4c5d114ea04d5b6c7009d46895ec26109aa654f3 Mon Sep 17 00:00:00 2001 From: Thibaut Sautereau Date: Tue, 4 Sep 2018 15:46:23 -0700 Subject: [PATCH 0617/1762] lib/Kconfig.debug: fix three typos in help text Fix three typos in CONFIG_WARN_ALL_UNSEEDED_RANDOM help text. Link: http://lkml.kernel.org/r/20180830194505.4778-1-thibaut@sautereau.fr Signed-off-by: Thibaut Sautereau Acked-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- lib/Kconfig.debug | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 613316724c6a..4966c4fbe7f7 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1277,13 +1277,13 @@ config WARN_ALL_UNSEEDED_RANDOM time. This is really bad from a security perspective, and so architecture maintainers really need to do what they can to get the CRNG seeded sooner after the system is booted. - However, since users can not do anything actionble to + However, since users cannot do anything actionable to address this, by default the kernel will issue only a single warning for the first use of unseeded randomness. Say Y here if you want to receive warnings for all uses of unseeded randomness. This will be of use primarily for - those developers interersted in improving the security of + those developers interested in improving the security of Linux kernels running on their architecture (or subarchitecture). From 36bdac1e674debd2714cb3e80eaa18266c2426e4 Mon Sep 17 00:00:00 2001 From: Souptick Joarder Date: Tue, 4 Sep 2018 15:46:26 -0700 Subject: [PATCH 0618/1762] drivers/dax/device.c: convert variable to vm_fault_t type As part of 226ab561075f ("device-dax: Convert to vmf_insert_mixed and vm_fault_t") in 4.19-rc1, 'rc' was not converted to vm_fault_t. Now converted. Link: http://lkml.kernel.org/r/20180830153813.GA26059@jordon-HP-15-Notebook-PC Signed-off-by: Souptick Joarder Cc: Dan Williams Cc: Dave Jiang Cc: Ross Zwisler Cc: Vishal Verma Cc: Matthew Wilcox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/dax/device.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/dax/device.c b/drivers/dax/device.c index 6fd46083e629..bbe4d72ca105 100644 --- a/drivers/dax/device.c +++ b/drivers/dax/device.c @@ -392,7 +392,8 @@ static vm_fault_t dev_dax_huge_fault(struct vm_fault *vmf, { struct file *filp = vmf->vma->vm_file; unsigned long fault_size; - int rc, id; + vm_fault_t rc = VM_FAULT_SIGBUS; + int id; pfn_t pfn; struct dev_dax *dev_dax = filp->private_data; From ae98043f5f7fa45b65084f70e3ada3209873ebb4 Mon Sep 17 00:00:00 2001 From: Ryusuke Konishi Date: Tue, 4 Sep 2018 15:46:30 -0700 Subject: [PATCH 0619/1762] nilfs2: convert to SPDX license tags Remove the verbose license text from NILFS2 files and replace them with SPDX tags. This does not change the license of any of the code. Link: http://lkml.kernel.org/r/1535624528-5982-1-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi Reviewed-by: Andrew Morton Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/nilfs2/alloc.c | 11 +---------- fs/nilfs2/alloc.h | 11 +---------- fs/nilfs2/bmap.c | 11 +---------- fs/nilfs2/bmap.h | 11 +---------- fs/nilfs2/btnode.c | 11 +---------- fs/nilfs2/btnode.h | 11 +---------- fs/nilfs2/btree.c | 11 +---------- fs/nilfs2/btree.h | 11 +---------- fs/nilfs2/cpfile.c | 11 +---------- fs/nilfs2/cpfile.h | 11 +---------- fs/nilfs2/dat.c | 11 +---------- fs/nilfs2/dat.h | 11 +---------- fs/nilfs2/dir.c | 11 +---------- fs/nilfs2/direct.c | 11 +---------- fs/nilfs2/direct.h | 11 +---------- fs/nilfs2/file.c | 11 +---------- fs/nilfs2/gcinode.c | 11 +---------- fs/nilfs2/ifile.c | 11 +---------- fs/nilfs2/ifile.h | 11 +---------- fs/nilfs2/inode.c | 11 +---------- fs/nilfs2/ioctl.c | 11 +---------- fs/nilfs2/mdt.c | 11 +---------- fs/nilfs2/mdt.h | 11 +---------- fs/nilfs2/namei.c | 11 +---------- fs/nilfs2/nilfs.h | 11 +---------- fs/nilfs2/page.c | 11 +---------- fs/nilfs2/page.h | 11 +---------- fs/nilfs2/recovery.c | 11 +---------- fs/nilfs2/segbuf.c | 11 +---------- fs/nilfs2/segbuf.h | 11 +---------- fs/nilfs2/segment.c | 11 +---------- fs/nilfs2/segment.h | 11 +---------- fs/nilfs2/sufile.c | 11 +---------- fs/nilfs2/sufile.h | 11 +---------- fs/nilfs2/super.c | 11 +---------- fs/nilfs2/sysfs.c | 11 +---------- fs/nilfs2/sysfs.h | 11 +---------- fs/nilfs2/the_nilfs.c | 11 +---------- fs/nilfs2/the_nilfs.h | 11 +---------- 39 files changed, 39 insertions(+), 390 deletions(-) diff --git a/fs/nilfs2/alloc.c b/fs/nilfs2/alloc.c index 03b8ba933eb2..235b959fc2b3 100644 --- a/fs/nilfs2/alloc.c +++ b/fs/nilfs2/alloc.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * alloc.c - NILFS dat/inode allocator * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Originally written by Koji Sato. * Two allocators were unified by Ryusuke Konishi and Amagai Yoshiji. */ diff --git a/fs/nilfs2/alloc.h b/fs/nilfs2/alloc.h index 05149e606a78..0303c3968cee 100644 --- a/fs/nilfs2/alloc.h +++ b/fs/nilfs2/alloc.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * alloc.h - persistent object (dat entry/disk inode) allocator/deallocator * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Originally written by Koji Sato. * Two allocators were unified by Ryusuke Konishi and Amagai Yoshiji. */ diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c index 01fb1831ca25..fb5a9a8a13cf 100644 --- a/fs/nilfs2/bmap.c +++ b/fs/nilfs2/bmap.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * bmap.c - NILFS block mapping. * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato. */ diff --git a/fs/nilfs2/bmap.h b/fs/nilfs2/bmap.h index 2b6ffbe5997a..2c63858e81c9 100644 --- a/fs/nilfs2/bmap.h +++ b/fs/nilfs2/bmap.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * bmap.h - NILFS block mapping. * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato. */ diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c index dec98cab729d..ebb24a314f43 100644 --- a/fs/nilfs2/btnode.c +++ b/fs/nilfs2/btnode.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * btnode.c - NILFS B-tree node cache * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Originally written by Seiji Kihara. * Fully revised by Ryusuke Konishi for stabilization and simplification. * diff --git a/fs/nilfs2/btnode.h b/fs/nilfs2/btnode.h index 4e8aaa1aeb65..0f88dbc9bcb3 100644 --- a/fs/nilfs2/btnode.h +++ b/fs/nilfs2/btnode.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * btnode.h - NILFS B-tree node cache * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Seiji Kihara. * Revised by Ryusuke Konishi. */ diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c index 16a7a67a11c9..23e043eca237 100644 --- a/fs/nilfs2/btree.c +++ b/fs/nilfs2/btree.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * btree.c - NILFS B-tree. * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato. */ diff --git a/fs/nilfs2/btree.h b/fs/nilfs2/btree.h index 2184e47fa4bf..d1421b646ce4 100644 --- a/fs/nilfs2/btree.h +++ b/fs/nilfs2/btree.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * btree.h - NILFS B-tree. * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato. */ diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c index a15a1601e931..8d41311b5db4 100644 --- a/fs/nilfs2/cpfile.c +++ b/fs/nilfs2/cpfile.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * cpfile.c - NILFS checkpoint file. * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato. */ diff --git a/fs/nilfs2/cpfile.h b/fs/nilfs2/cpfile.h index 6eca972f9673..6336222df24a 100644 --- a/fs/nilfs2/cpfile.h +++ b/fs/nilfs2/cpfile.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * cpfile.h - NILFS checkpoint file. * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato. */ diff --git a/fs/nilfs2/dat.c b/fs/nilfs2/dat.c index dffedb2f8817..6f4066636be9 100644 --- a/fs/nilfs2/dat.c +++ b/fs/nilfs2/dat.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * dat.c - NILFS disk address translation. * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato. */ diff --git a/fs/nilfs2/dat.h b/fs/nilfs2/dat.h index 57dc6cf466d0..b17ee34580ae 100644 --- a/fs/nilfs2/dat.h +++ b/fs/nilfs2/dat.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * dat.h - NILFS disk address translation. * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato. */ diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c index 582831ab3eb9..81394e22d0a0 100644 --- a/fs/nilfs2/dir.c +++ b/fs/nilfs2/dir.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * dir.c - NILFS directory entry operations * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Modified for NILFS by Amagai Yoshiji. */ /* diff --git a/fs/nilfs2/direct.c b/fs/nilfs2/direct.c index 96e3ed0d9652..533e24ea3a88 100644 --- a/fs/nilfs2/direct.c +++ b/fs/nilfs2/direct.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * direct.c - NILFS direct block pointer. * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato. */ diff --git a/fs/nilfs2/direct.h b/fs/nilfs2/direct.h index cfe85e848bba..ec9a23c77994 100644 --- a/fs/nilfs2/direct.h +++ b/fs/nilfs2/direct.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * direct.h - NILFS direct block pointer. * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato. */ diff --git a/fs/nilfs2/file.c b/fs/nilfs2/file.c index 7da0fac71dc2..64bc81363c6c 100644 --- a/fs/nilfs2/file.c +++ b/fs/nilfs2/file.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * file.c - NILFS regular file handling primitives including fsync(). * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Amagai Yoshiji and Ryusuke Konishi. */ diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c index 853a831dcde0..aa3c328ee189 100644 --- a/fs/nilfs2/gcinode.c +++ b/fs/nilfs2/gcinode.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * gcinode.c - dummy inodes to buffer blocks for garbage collection * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Seiji Kihara, Amagai Yoshiji, and Ryusuke Konishi. * Revised by Ryusuke Konishi. * diff --git a/fs/nilfs2/ifile.c b/fs/nilfs2/ifile.c index b8fa45c20c63..4140d232cadc 100644 --- a/fs/nilfs2/ifile.c +++ b/fs/nilfs2/ifile.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * ifile.c - NILFS inode file * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Amagai Yoshiji. * Revised by Ryusuke Konishi. * diff --git a/fs/nilfs2/ifile.h b/fs/nilfs2/ifile.h index 188b94fe0ec5..a1e1e5711a05 100644 --- a/fs/nilfs2/ifile.h +++ b/fs/nilfs2/ifile.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * ifile.h - NILFS inode file * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Amagai Yoshiji. * Revised by Ryusuke Konishi. * diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 6a612d832e7d..671085512e0f 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * inode.c - NILFS inode operations. * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Ryusuke Konishi. * */ diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c index 1d2c3d7711fe..9b96d79eea6c 100644 --- a/fs/nilfs2/ioctl.c +++ b/fs/nilfs2/ioctl.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * ioctl.c - NILFS ioctl operations. * * Copyright (C) 2007, 2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato. */ diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c index c6bc1033e7d2..700870a92bc4 100644 --- a/fs/nilfs2/mdt.c +++ b/fs/nilfs2/mdt.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * mdt.c - meta data file for NILFS * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Ryusuke Konishi. */ diff --git a/fs/nilfs2/mdt.h b/fs/nilfs2/mdt.h index 3f67f3932097..e77aea4bb921 100644 --- a/fs/nilfs2/mdt.h +++ b/fs/nilfs2/mdt.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * mdt.h - NILFS meta data file prototype and definitions * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Ryusuke Konishi. */ diff --git a/fs/nilfs2/namei.c b/fs/nilfs2/namei.c index dd52d3f82e8d..9fe6d4ab74f0 100644 --- a/fs/nilfs2/namei.c +++ b/fs/nilfs2/namei.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * namei.c - NILFS pathname lookup operations. * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Modified for NILFS by Amagai Yoshiji and Ryusuke Konishi. */ /* diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h index 33f8c8fc96e8..a2f247b6a209 100644 --- a/fs/nilfs2/nilfs.h +++ b/fs/nilfs2/nilfs.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * nilfs.h - NILFS local header file. * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato and Ryusuke Konishi. */ diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c index 4cb850a6f1c2..329a056b73b1 100644 --- a/fs/nilfs2/page.c +++ b/fs/nilfs2/page.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * page.c - buffer/page management specific to NILFS * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Ryusuke Konishi and Seiji Kihara. */ diff --git a/fs/nilfs2/page.h b/fs/nilfs2/page.h index f3687c958fa8..62b9bb469e92 100644 --- a/fs/nilfs2/page.h +++ b/fs/nilfs2/page.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * page.h - buffer/page management specific to NILFS * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Ryusuke Konishi and Seiji Kihara. */ diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c index 5139efed1888..140b663e91c7 100644 --- a/fs/nilfs2/recovery.c +++ b/fs/nilfs2/recovery.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * recovery.c - NILFS recovery logic * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Ryusuke Konishi. */ diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c index 68cb9e4740b4..20c479b5e41b 100644 --- a/fs/nilfs2/segbuf.c +++ b/fs/nilfs2/segbuf.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * segbuf.c - NILFS segment buffer * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Ryusuke Konishi. * */ diff --git a/fs/nilfs2/segbuf.h b/fs/nilfs2/segbuf.h index 10e16935fff6..9bea1bd59041 100644 --- a/fs/nilfs2/segbuf.h +++ b/fs/nilfs2/segbuf.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * segbuf.h - NILFS Segment buffer prototypes and definitions * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Ryusuke Konishi. * */ diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index 0953635e7d48..445eef41bfaf 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * segment.c - NILFS segment constructor. * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Ryusuke Konishi. * */ diff --git a/fs/nilfs2/segment.h b/fs/nilfs2/segment.h index 04634e3e3d58..f5cf5308f3fc 100644 --- a/fs/nilfs2/segment.h +++ b/fs/nilfs2/segment.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * segment.h - NILFS Segment constructor prototypes and definitions * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Ryusuke Konishi. * */ diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c index c7fa139d50e8..bf3f8f05c89b 100644 --- a/fs/nilfs2/sufile.c +++ b/fs/nilfs2/sufile.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * sufile.c - NILFS segment usage file. * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato. * Revised by Ryusuke Konishi. */ diff --git a/fs/nilfs2/sufile.h b/fs/nilfs2/sufile.h index 673a891350f4..c4e2c7a7add1 100644 --- a/fs/nilfs2/sufile.h +++ b/fs/nilfs2/sufile.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * sufile.h - NILFS segment usage file. * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Koji Sato. */ diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 1b9067cf4511..26290aa1023f 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * super.c - NILFS module and super block management. * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Ryusuke Konishi. */ /* diff --git a/fs/nilfs2/sysfs.c b/fs/nilfs2/sysfs.c index 4b25837e7724..e60be7bb55b0 100644 --- a/fs/nilfs2/sysfs.c +++ b/fs/nilfs2/sysfs.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * sysfs.c - sysfs support implementation. * * Copyright (C) 2005-2014 Nippon Telegraph and Telephone Corporation. * Copyright (C) 2014 HGST, Inc., a Western Digital Company. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Vyacheslav Dubeyko */ diff --git a/fs/nilfs2/sysfs.h b/fs/nilfs2/sysfs.h index 648cedf9c06e..d001eb862dae 100644 --- a/fs/nilfs2/sysfs.h +++ b/fs/nilfs2/sysfs.h @@ -1,19 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * sysfs.h - sysfs support declarations. * * Copyright (C) 2005-2014 Nippon Telegraph and Telephone Corporation. * Copyright (C) 2014 HGST, Inc., a Western Digital Company. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Vyacheslav Dubeyko */ diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c index 1a85317e83f0..484785cdf96e 100644 --- a/fs/nilfs2/the_nilfs.c +++ b/fs/nilfs2/the_nilfs.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * the_nilfs.c - the_nilfs shared structure. * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Ryusuke Konishi. * */ diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h index 36da1779f976..380a543c5b19 100644 --- a/fs/nilfs2/the_nilfs.h +++ b/fs/nilfs2/the_nilfs.h @@ -1,18 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * the_nilfs.h - the_nilfs shared structure. * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Written by Ryusuke Konishi. * */ From e866d3e84eb7c9588afb77604d417e8cc49fe216 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 28 Aug 2018 17:33:46 -0700 Subject: [PATCH 0620/1762] riscv: Do not overwrite initrd_start and initrd_end setup_initrd() overwrites initrd_start and initrd_end if __initramfs_size is larger than 0, which is always true even if there is no embedded initramfs. This prevents booting qemu with "-initrd" parameter. Overwriting initrd_start and initrd_end is not necessary since __initramfs_start and __initramfs_size are used directly in populate_rootfs() to load the built-in initramfs, so just drop that code. Signed-off-by: Guenter Roeck Signed-off-by: Palmer Dabbelt --- arch/riscv/kernel/setup.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c index db20dc630e7e..aee603123030 100644 --- a/arch/riscv/kernel/setup.c +++ b/arch/riscv/kernel/setup.c @@ -85,15 +85,8 @@ atomic_t hart_lottery; #ifdef CONFIG_BLK_DEV_INITRD static void __init setup_initrd(void) { - extern char __initramfs_start[]; - extern unsigned long __initramfs_size; unsigned long size; - if (__initramfs_size > 0) { - initrd_start = (unsigned long)(&__initramfs_start); - initrd_end = initrd_start + __initramfs_size; - } - if (initrd_start >= initrd_end) { printk(KERN_INFO "initrd not found or empty"); goto disable; From 3350139c0ff3c95724b784f7109987d533cb3ecd Mon Sep 17 00:00:00 2001 From: Greentime Hu Date: Tue, 4 Sep 2018 14:25:57 +0800 Subject: [PATCH 0621/1762] nds32: linker script: GCOV kernel may refers data in __exit This patch is used to fix nds32 allmodconfig/allyesconfig build error because GCOV kernel embeds counters in the kernel for each line and a part of that embed in __exit text. So we need to keep the EXIT_TEXT and EXIT_DATA if CONFIG_GCOV_KERNEL=y. Link: https://lkml.org/lkml/2018/9/1/125 Signed-off-by: Greentime Hu Reviewed-by: Masami Hiramatsu --- arch/nds32/kernel/vmlinux.lds.S | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/nds32/kernel/vmlinux.lds.S b/arch/nds32/kernel/vmlinux.lds.S index 288313b886ef..9e90f30a181d 100644 --- a/arch/nds32/kernel/vmlinux.lds.S +++ b/arch/nds32/kernel/vmlinux.lds.S @@ -13,14 +13,26 @@ OUTPUT_ARCH(nds32) ENTRY(_stext_lma) jiffies = jiffies_64; +#if defined(CONFIG_GCOV_KERNEL) +#define NDS32_EXIT_KEEP(x) x +#else +#define NDS32_EXIT_KEEP(x) +#endif + SECTIONS { _stext_lma = TEXTADDR - LOAD_OFFSET; . = TEXTADDR; __init_begin = .; HEAD_TEXT_SECTION + .exit.text : { + NDS32_EXIT_KEEP(EXIT_TEXT) + } INIT_TEXT_SECTION(PAGE_SIZE) INIT_DATA_SECTION(16) + .exit.data : { + NDS32_EXIT_KEEP(EXIT_DATA) + } PERCPU_SECTION(L1_CACHE_BYTES) __init_end = .; From c483a5cc9d09f4ceaa9abb106f863cc89cb643d9 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 27 Aug 2018 10:21:48 +0200 Subject: [PATCH 0622/1762] mmc: meson-mx-sdio: fix OF child-node lookup Use the new of_get_compatible_child() helper to lookup the slot child node instead of using of_find_compatible_node(), which searches the entire tree from a given start node and thus can return an unrelated (i.e. non-child) node. This also addresses a potential use-after-free (e.g. after probe deferral) as the tree-wide helper drops a reference to its first argument (i.e. the node of the device being probed). While at it, also fix up the related slot-node reference leak. Fixes: ed80a13bb4c4 ("mmc: meson-mx-sdio: Add a driver for the Amlogic Meson8 and Meson8b SoCs") Cc: stable # 4.15 Cc: Carlo Caione Cc: Martin Blumenstingl Cc: Ulf Hansson Acked-by: Martin Blumenstingl Signed-off-by: Johan Hovold Signed-off-by: Ulf Hansson --- drivers/mmc/host/meson-mx-sdio.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/meson-mx-sdio.c b/drivers/mmc/host/meson-mx-sdio.c index 09cb89645d06..2cfec33178c1 100644 --- a/drivers/mmc/host/meson-mx-sdio.c +++ b/drivers/mmc/host/meson-mx-sdio.c @@ -517,19 +517,23 @@ static struct mmc_host_ops meson_mx_mmc_ops = { static struct platform_device *meson_mx_mmc_slot_pdev(struct device *parent) { struct device_node *slot_node; + struct platform_device *pdev; /* * TODO: the MMC core framework currently does not support * controllers with multiple slots properly. So we only register * the first slot for now */ - slot_node = of_find_compatible_node(parent->of_node, NULL, "mmc-slot"); + slot_node = of_get_compatible_child(parent->of_node, "mmc-slot"); if (!slot_node) { dev_warn(parent, "no 'mmc-slot' sub-node found\n"); return ERR_PTR(-ENOENT); } - return of_platform_device_create(slot_node, NULL, parent); + pdev = of_platform_device_create(slot_node, NULL, parent); + of_node_put(slot_node); + + return pdev; } static int meson_mx_mmc_add_host(struct meson_mx_mmc_host *host) From 8682250b3c1b75a45feb7452bc413d004cfe3778 Mon Sep 17 00:00:00 2001 From: Andrei Otcheretianski Date: Wed, 5 Sep 2018 08:06:13 +0300 Subject: [PATCH 0623/1762] mac80211: Always report TX status If a frame is dropped for any reason, mac80211 wouldn't report the TX status back to user space. As the user space may rely on the TX_STATUS to kick its state machines, resends etc, it's better to just report this frame as not acked instead. Signed-off-by: Andrei Otcheretianski Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- net/mac80211/status.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 9a6d7208bf4f..001a869c059c 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -479,11 +479,6 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local, if (!skb) return; - if (dropped) { - dev_kfree_skb_any(skb); - return; - } - if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) { u64 cookie = IEEE80211_SKB_CB(skb)->ack.cookie; struct ieee80211_sub_if_data *sdata; @@ -506,6 +501,8 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local, } rcu_read_unlock(); + dev_kfree_skb_any(skb); + } else if (dropped) { dev_kfree_skb_any(skb); } else { /* consumes skb */ From 94a5b3acd0aef83c0e38b5117eda7b2abf4a05a4 Mon Sep 17 00:00:00 2001 From: Andrei Otcheretianski Date: Wed, 5 Sep 2018 08:06:14 +0300 Subject: [PATCH 0624/1762] mac80211: Don't wake up from PS for offchannel TX Otherwise the offchannel frame might be queued due to IEEE80211_QUEUE_STOP_REASON_PS and later dropped (in ieee80211_tx_frags()). Anyway, it doesn't make much sense to wake up the device during ROC. Signed-off-by: Andrei Otcheretianski Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- net/mac80211/tx.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index f353d9db54bc..131542513c8f 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -214,6 +214,7 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx) { struct ieee80211_local *local = tx->local; struct ieee80211_if_managed *ifmgd; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); /* driver doesn't support power save */ if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) @@ -242,6 +243,9 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx) if (tx->sdata->vif.type != NL80211_IFTYPE_STATION) return TX_CONTINUE; + if (unlikely(info->flags & IEEE80211_TX_INTFL_OFFCHAN_TX_OK)) + return TX_CONTINUE; + ifmgd = &tx->sdata->u.mgd; /* From 24f33e64fcd0d50a4b1a8e5b41bd0257aa66b0e8 Mon Sep 17 00:00:00 2001 From: Andrei Otcheretianski Date: Wed, 5 Sep 2018 08:06:12 +0300 Subject: [PATCH 0625/1762] cfg80211: reg: Init wiphy_idx in regulatory_hint_core() Core regulatory hints didn't set wiphy_idx to WIPHY_IDX_INVALID. Since the regulatory request is zeroed, wiphy_idx was always implicitly set to 0. This resulted in updating only phy #0. Fix that. Fixes: 806a9e39670b ("cfg80211: make regulatory_request use wiphy_idx instead of wiphy") Signed-off-by: Andrei Otcheretianski Signed-off-by: Luca Coelho [add fixes tag] Signed-off-by: Johannes Berg --- net/wireless/reg.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 2f702adf2912..765dedb12361 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -2867,6 +2867,7 @@ static int regulatory_hint_core(const char *alpha2) request->alpha2[0] = alpha2[0]; request->alpha2[1] = alpha2[1]; request->initiator = NL80211_REGDOM_SET_BY_CORE; + request->wiphy_idx = WIPHY_IDX_INVALID; queue_regulatory_request(request); From b034ed50a2bb517c4b76e84f7723cb6bf60a4edd Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Wed, 29 Aug 2018 10:22:09 -0500 Subject: [PATCH 0626/1762] HID: core: fix NULL pointer dereference There is a NULL pointer dereference in case memory resources for *parse* are not successfully allocated. Fix this by adding a new goto label and make the execution path jump to it in case vzalloc() fails. Addresses-Coverity-ID: 1473081 ("Dereference after null check") Fixes: b2dd9f2e5a8a ("HID: core: fix memory leak on probe") Signed-off-by: Gustavo A. R. Silva Reviewed-by: Stefan Agner Signed-off-by: Jiri Kosina --- drivers/hid/hid-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 44a465db3f96..44564f61e9cc 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1000,7 +1000,7 @@ int hid_open_report(struct hid_device *device) parser = vzalloc(sizeof(struct hid_parser)); if (!parser) { ret = -ENOMEM; - goto err; + goto alloc_err; } parser->device = device; @@ -1049,6 +1049,7 @@ int hid_open_report(struct hid_device *device) hid_err(device, "item fetching failed at offset %d\n", (int)(end - start)); err: kfree(parser->collection_stack); +alloc_err: vfree(parser); hid_close_report(device); return ret; From ade573eb1e03d1ee5abcb3359b1259469ab6e8ed Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 18 Aug 2018 10:12:08 +0200 Subject: [PATCH 0627/1762] HID: sensor-hub: Restore fixup for Lenovo ThinkPad Helix 2 sensor hub report Commit b0f847e16c1e ("HID: hid-sensor-hub: Force logical minimum to 1 for power and report state") not only replaced the descriptor fixup done for devices with the HID_SENSOR_HUB_ENUM_QUIRK with a generic fix, but also accidentally removed the unrelated descriptor fixup for the Lenovo ThinkPad Helix 2 sensor hub. This commit restores this fixup. Restoring this fixup not only fixes the Lenovo ThinkPad Helix 2's sensors, but also the Lenovo ThinkPad 8's sensors. Fixes: b0f847e16c1e ("HID: hid-sensor-hub: Force logical minimum ...") Cc: Srinivas Pandruvada Cc: Fernando D S Lima Acked-by: Srinivas Pandruvada Signed-off-by: Hans de Goede Signed-off-by: Jiri Kosina --- drivers/hid/hid-sensor-hub.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c index 50af72baa5ca..2b63487057c2 100644 --- a/drivers/hid/hid-sensor-hub.c +++ b/drivers/hid/hid-sensor-hub.c @@ -579,6 +579,28 @@ void sensor_hub_device_close(struct hid_sensor_hub_device *hsdev) } EXPORT_SYMBOL_GPL(sensor_hub_device_close); +static __u8 *sensor_hub_report_fixup(struct hid_device *hdev, __u8 *rdesc, + unsigned int *rsize) +{ + /* + * Checks if the report descriptor of Thinkpad Helix 2 has a logical + * minimum for magnetic flux axis greater than the maximum. + */ + if (hdev->product == USB_DEVICE_ID_TEXAS_INSTRUMENTS_LENOVO_YOGA && + *rsize == 2558 && rdesc[913] == 0x17 && rdesc[914] == 0x40 && + rdesc[915] == 0x81 && rdesc[916] == 0x08 && + rdesc[917] == 0x00 && rdesc[918] == 0x27 && + rdesc[921] == 0x07 && rdesc[922] == 0x00) { + /* Sets negative logical minimum for mag x, y and z */ + rdesc[914] = rdesc[935] = rdesc[956] = 0xc0; + rdesc[915] = rdesc[936] = rdesc[957] = 0x7e; + rdesc[916] = rdesc[937] = rdesc[958] = 0xf7; + rdesc[917] = rdesc[938] = rdesc[959] = 0xff; + } + + return rdesc; +} + static int sensor_hub_probe(struct hid_device *hdev, const struct hid_device_id *id) { @@ -743,6 +765,7 @@ static struct hid_driver sensor_hub_driver = { .probe = sensor_hub_probe, .remove = sensor_hub_remove, .raw_event = sensor_hub_raw_event, + .report_fixup = sensor_hub_report_fixup, #ifdef CONFIG_PM .suspend = sensor_hub_suspend, .resume = sensor_hub_resume, From d9707490077bee0c7060ef5665a90656e1078b66 Mon Sep 17 00:00:00 2001 From: Bruno Meirelles Herrera Date: Mon, 27 Aug 2018 18:36:38 -0300 Subject: [PATCH 0628/1762] usb: dwc2: Fix call location of dwc2_check_core_endianness Some SoC/IP as STM32F469, the snpsid can only be read after clock is enabled, otherwise it will read as 0, and the dwc2_check_core_endianness will assume the core and AHB have opposite endianness, leading to the following error: [ 1.976339] dwc2 50000000.usb: 50000000.usb supply vusb_d not found, using dummy regulator [ 1.986124] dwc2 50000000.usb: Linked as a consumer to regulator.0 [ 1.992711] dwc2 50000000.usb: 50000000.usb supply vusb_a not found, using dummy regulator [ 2.003672] dwc2 50000000.usb: dwc2_core_reset: HANG! AHB Idle timeout GRSTCTL GRSTCTL_AHBIDLE [ 2.015176] dwc2: probe of 50000000.usb failed with error -16 The proposed patch changes the location where dwc2_check_core_endianness is called, allowing the clock peripheral to be enabled first. Acked-by: Minas Harutyunyan Tested-by: Martin Blumenstingl Signed-off-by: Bruno Meirelles Herrera Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/platform.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c index 9a53a58e676e..577642895b57 100644 --- a/drivers/usb/dwc2/platform.c +++ b/drivers/usb/dwc2/platform.c @@ -412,8 +412,6 @@ static int dwc2_driver_probe(struct platform_device *dev) dev_dbg(&dev->dev, "mapped PA %08lx to VA %p\n", (unsigned long)res->start, hsotg->regs); - hsotg->needs_byte_swap = dwc2_check_core_endianness(hsotg); - retval = dwc2_lowlevel_hw_init(hsotg); if (retval) return retval; @@ -438,6 +436,8 @@ static int dwc2_driver_probe(struct platform_device *dev) if (retval) return retval; + hsotg->needs_byte_swap = dwc2_check_core_endianness(hsotg); + retval = dwc2_get_dr_mode(hsotg); if (retval) goto error; From 6eae4a6c2be387fec41b0d2782c4fffb57159498 Mon Sep 17 00:00:00 2001 From: Bob Copeland Date: Wed, 5 Sep 2018 06:22:59 -0400 Subject: [PATCH 0629/1762] mac80211: fix pending queue hang due to TX_DROP MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In our environment running lots of mesh nodes, we are seeing the pending queue hang periodically, with the debugfs queues file showing lines such as: 00: 0x00000000/348 i.e. there are a large number of frames but no stop reason set. One way this could happen is if queue processing from the pending tasklet exited early without processing all frames, and without having some future event (incoming frame, stop reason flag, ...) to reschedule it. Exactly this can occur today if ieee80211_tx() returns false due to packet drops or power-save buffering in the tx handlers. In the past, this function would return true in such cases, and the change to false doesn't seem to be intentional. Fix this case by reverting to the previous behavior. Fixes: bb42f2d13ffc ("mac80211: Move reorder-sensitive TX handlers to after TXQ dequeue") Signed-off-by: Bob Copeland Acked-by: Toke Høiland-Jørgensen Signed-off-by: Johannes Berg --- net/mac80211/tx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 131542513c8f..25ba24bef8f5 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1894,7 +1894,7 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata, sdata->vif.hw_queue[skb_get_queue_mapping(skb)]; if (invoke_tx_handlers_early(&tx)) - return false; + return true; if (ieee80211_queue_skb(local, sdata, tx.sta, tx.skb)) return true; From 9b83a1c301ad6d24988a128c69b42cbaaf537d82 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Maxence=20Dupr=C3=A8s?= Date: Wed, 8 Aug 2018 23:56:33 +0000 Subject: [PATCH 0630/1762] USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB controller WORLDE Controller KS49 or Prodipe MIDI 49C USB controller cause a -EPROTO error, a communication restart and loop again. This issue has already been fixed for KS25. https://lore.kernel.org/patchwork/patch/753077/ I just add device 201 for KS49 in quirks.c to get it works. Signed-off-by: Laurent Roux Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/quirks.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 097057d2eacf..689a6c65bc5c 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -178,6 +178,10 @@ static const struct usb_device_id usb_quirk_list[] = { /* CBM - Flash disk */ { USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME }, + /* WORLDE Controller KS49 or Prodipe MIDI 49C USB controller */ + { USB_DEVICE(0x0218, 0x0201), .driver_info = + USB_QUIRK_CONFIG_INTF_STRINGS }, + /* WORLDE easy key (easykey.25) MIDI controller */ { USB_DEVICE(0x0218, 0x0401), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, From 4937213ba7fafa13f30496b3965ffe93970d8b53 Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Fri, 31 Aug 2018 17:24:43 +0300 Subject: [PATCH 0631/1762] xhci: Fix use after free for URB cancellation on a reallocated endpoint Make sure the cancelled URB is on the current endpoint ring. If the endpoint ring has been reallocated since the URB was enqueued then the URB may contain TD and TRB pointers to a already freed ring. In this the case return the URB without touching any of the freed ring structure data. Don't try to stop the ring. It would be useless. This can occur if endpoint is not flushed before it is dropped and re-added, which is the case in usb_set_interface() as xhci does things in an odd order. Cc: Tested-by: Sudip Mukherjee Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 61f48b17e57b..0420eefa647a 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -37,6 +37,21 @@ static unsigned long long quirks; module_param(quirks, ullong, S_IRUGO); MODULE_PARM_DESC(quirks, "Bit flags for quirks to be enabled as default"); +static bool td_on_ring(struct xhci_td *td, struct xhci_ring *ring) +{ + struct xhci_segment *seg = ring->first_seg; + + if (!td || !td->start_seg) + return false; + do { + if (seg == td->start_seg) + return true; + seg = seg->next; + } while (seg && seg != ring->first_seg); + + return false; +} + /* TODO: copied from ehci-hcd.c - can this be refactored? */ /* * xhci_handshake - spin reading hc until handshake completes or fails @@ -1571,6 +1586,21 @@ static int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) goto done; } + /* + * check ring is not re-allocated since URB was enqueued. If it is, then + * make sure none of the ring related pointers in this URB private data + * are touched, such as td_list, otherwise we overwrite freed data + */ + if (!td_on_ring(&urb_priv->td[0], ep_ring)) { + xhci_err(xhci, "Canceled URB td not found on endpoint ring"); + for (i = urb_priv->num_tds_done; i < urb_priv->num_tds; i++) { + td = &urb_priv->td[i]; + if (!list_empty(&td->cancelled_td_list)) + list_del_init(&td->cancelled_td_list); + } + goto err_giveback; + } + if (xhci->xhc_state & XHCI_STATE_HALTED) { xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, "HC halted, freeing TD manually."); From 222471f7640d9771a993218d825d84825adc805d Mon Sep 17 00:00:00 2001 From: Anurag Kumar Vulisha Date: Fri, 31 Aug 2018 17:24:42 +0300 Subject: [PATCH 0632/1762] usb: host: xhci-plat: Iterate over parent nodes for finding quirks In xhci_plat_probe() both sysdev and pdev->dev are being used for finding quirks. There are some drivers(like dwc3 host.c) which adds quirks(like usb3-lpm-capable) into pdev and the logic present in xhci_plat_probe() checks for quirks in either sysdev or pdev for finding the quirks. Because of this logic, some of the quirks are getting missed(usb3-lpm-capable quirk added by dwc3 host.c driver is getting missed).This patch fixes this by iterating over all the available parents for finding the quirks. In this way all the quirks which are present in child or parent are correctly updated. Signed-off-by: Anurag Kumar Vulisha Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-plat.c | 29 +++++++++++++++++------------ 1 file changed, 17 insertions(+), 12 deletions(-) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 8dc77e34a859..94e939249b2b 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -153,7 +153,7 @@ static int xhci_plat_probe(struct platform_device *pdev) { const struct xhci_plat_priv *priv_match; const struct hc_driver *driver; - struct device *sysdev; + struct device *sysdev, *tmpdev; struct xhci_hcd *xhci; struct resource *res; struct usb_hcd *hcd; @@ -273,19 +273,24 @@ static int xhci_plat_probe(struct platform_device *pdev) goto disable_clk; } - if (device_property_read_bool(sysdev, "usb2-lpm-disable")) - xhci->quirks |= XHCI_HW_LPM_DISABLE; - - if (device_property_read_bool(sysdev, "usb3-lpm-capable")) - xhci->quirks |= XHCI_LPM_SUPPORT; - - if (device_property_read_bool(&pdev->dev, "quirk-broken-port-ped")) - xhci->quirks |= XHCI_BROKEN_PORT_PED; - /* imod_interval is the interrupt moderation value in nanoseconds. */ xhci->imod_interval = 40000; - device_property_read_u32(sysdev, "imod-interval-ns", - &xhci->imod_interval); + + /* Iterate over all parent nodes for finding quirks */ + for (tmpdev = &pdev->dev; tmpdev; tmpdev = tmpdev->parent) { + + if (device_property_read_bool(tmpdev, "usb2-lpm-disable")) + xhci->quirks |= XHCI_HW_LPM_DISABLE; + + if (device_property_read_bool(tmpdev, "usb3-lpm-capable")) + xhci->quirks |= XHCI_LPM_SUPPORT; + + if (device_property_read_bool(tmpdev, "quirk-broken-port-ped")) + xhci->quirks |= XHCI_BROKEN_PORT_PED; + + device_property_read_u32(tmpdev, "imod-interval-ns", + &xhci->imod_interval); + } hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0); if (IS_ERR(hcd->usb_phy)) { From 7e10f14ebface44a48275c8d6dc1caae3668d5a9 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Wed, 15 Aug 2018 21:44:25 +0100 Subject: [PATCH 0633/1762] USB: yurex: Fix buffer over-read in yurex_write() If the written data starts with a digit, yurex_write() tries to parse it as an integer using simple_strtoull(). This requires a null- terminator, and currently there's no guarantee that there is one. (The sample program at https://github.com/NeoCat/YUREX-driver-for-Linux/blob/master/sample/yurex_clock.pl writes an integer without a null terminator. It seems like it must have worked by chance!) Always add a null byte after the written data. Enlarge the buffer to allow for this. Cc: stable@vger.kernel.org Signed-off-by: Ben Hutchings Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/yurex.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index 3be40eaa1ac9..1232dd49556d 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -421,13 +421,13 @@ static ssize_t yurex_write(struct file *file, const char __user *user_buffer, { struct usb_yurex *dev; int i, set = 0, retval = 0; - char buffer[16]; + char buffer[16 + 1]; char *data = buffer; unsigned long long c, c2 = 0; signed long timeout = 0; DEFINE_WAIT(wait); - count = min(sizeof(buffer), count); + count = min(sizeof(buffer) - 1, count); dev = file->private_data; /* verify that we actually have some data to write */ @@ -446,6 +446,7 @@ static ssize_t yurex_write(struct file *file, const char __user *user_buffer, retval = -EFAULT; goto error; } + buffer[count] = 0; memset(dev->cntl_buffer, CMD_PADDING, YUREX_BUF_SIZE); switch (buffer[0]) { From 14427b86837a4baf1c121934c6599bdb67dfa9fc Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Wed, 15 Aug 2018 21:45:37 +0100 Subject: [PATCH 0634/1762] USB: yurex: Check for truncation in yurex_read() snprintf() always returns the full length of the string it could have printed, even if it was truncated because the buffer was too small. So in case the counter value is truncated, we will over-read from in_buffer and over-write to the caller's buffer. I don't think it's actually possible for this to happen, but in case truncation occurs, WARN and return -EIO. Signed-off-by: Ben Hutchings Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/yurex.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index 1232dd49556d..6d9fd5f64903 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -413,6 +413,9 @@ static ssize_t yurex_read(struct file *file, char __user *buffer, size_t count, spin_unlock_irqrestore(&dev->lock, flags); mutex_unlock(&dev->io_mutex); + if (WARN_ON_ONCE(len >= sizeof(in_buffer))) + return -EIO; + return simple_read_from_buffer(buffer, count, ppos, in_buffer, len); } From 4e3121abcf536f26fd08a4b395c6a6711a961641 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 2 Sep 2018 19:39:55 -0700 Subject: [PATCH 0635/1762] usb/dwc3/gadget: fix kernel-doc parameter warning Fix kernel-doc warning: ../drivers/usb/dwc3/gadget.c:510: warning: Excess function parameter 'dwc' description in 'dwc3_gadget_start_config' Signed-off-by: Randy Dunlap Cc: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/gadget.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 032ea7d709ba..2b53194081ba 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -473,7 +473,6 @@ static int dwc3_gadget_set_xfer_resource(struct dwc3_ep *dep) /** * dwc3_gadget_start_config - configure ep resources - * @dwc: pointer to our controller context structure * @dep: endpoint that is being enabled * * Issue a %DWC3_DEPCMD_DEPSTARTCFG command to @dep. After the command's From 49aa5afda2ed9cf6a8819707014385ede895ff87 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 2 Sep 2018 19:30:48 -0700 Subject: [PATCH 0636/1762] usb: typec: fix kernel-doc parameter warning Fix kernel-doc warning (13 times): ../drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode' Signed-off-by: Randy Dunlap Acked-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/class.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index c202975f8097..e61dffb27a0c 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -1484,7 +1484,6 @@ EXPORT_SYMBOL_GPL(typec_set_mode); * typec_port_register_altmode - Register USB Type-C Port Alternate Mode * @port: USB Type-C Port that supports the alternate mode * @desc: Description of the alternate mode - * @drvdata: Private pointer to driver specific info * * This routine is used to register an alternate mode that @port is capable of * supporting. From f45681f9becaa65111ed0a691ccf080a0cd5feb8 Mon Sep 17 00:00:00 2001 From: Tim Anderson Date: Thu, 9 Aug 2018 14:55:34 -0700 Subject: [PATCH 0637/1762] USB: Add quirk to support DJI CineSSD This device does not correctly handle the LPM operations. Also, the device cannot handle ATA pass-through commands and locks up when attempted while running in super speed. This patch adds the equivalent quirk logic as found in uas. Signed-off-by: Tim Anderson Acked-by: Alan Stern Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/quirks.c | 3 +++ drivers/usb/storage/scsiglue.c | 9 +++++++++ drivers/usb/storage/unusual_devs.h | 7 +++++++ 3 files changed, 19 insertions(+) diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 689a6c65bc5c..e77dfe5ed5ec 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -410,6 +410,9 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x2040, 0x7200), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, + /* DJI CineSSD */ + { USB_DEVICE(0x2ca3, 0x0031), .driver_info = USB_QUIRK_NO_LPM }, + /* INTEL VALUE SSD */ { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME }, diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index c267f2812a04..e227bb5b794f 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -376,6 +376,15 @@ static int queuecommand_lck(struct scsi_cmnd *srb, return 0; } + if ((us->fflags & US_FL_NO_ATA_1X) && + (srb->cmnd[0] == ATA_12 || srb->cmnd[0] == ATA_16)) { + memcpy(srb->sense_buffer, usb_stor_sense_invalidCDB, + sizeof(usb_stor_sense_invalidCDB)); + srb->result = SAM_STAT_CHECK_CONDITION; + done(srb); + return 0; + } + /* enqueue the command and wake up the control thread */ srb->scsi_done = done; us->srb = srb; diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 22fcfccf453a..f7f83b21dc74 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -2288,6 +2288,13 @@ UNUSUAL_DEV( 0x2735, 0x100b, 0x0000, 0x9999, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_GO_SLOW ), +/* Reported-by: Tim Anderson */ +UNUSUAL_DEV( 0x2ca3, 0x0031, 0x0000, 0x9999, + "DJI", + "CineSSD", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_NO_ATA_1X), + /* * Reported by Frederic Marchal * Mio Moov 330 From 42d1c6d4a06a77b3ab206a919b9050c3080f3a71 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Thu, 9 Aug 2018 16:03:37 +0200 Subject: [PATCH 0638/1762] usb: uas: add support for more quirk flags The hope that UAS devices would be less broken than old style storage devices has turned out to be unfounded. Make UAS support more of the quirk flags of the old driver. Signed-off-by: Oliver Neukum Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/uas.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 9e9de5452860..1f7b401c4d04 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -842,6 +842,27 @@ static int uas_slave_configure(struct scsi_device *sdev) sdev->skip_ms_page_8 = 1; sdev->wce_default_on = 1; } + + /* + * Some disks return the total number of blocks in response + * to READ CAPACITY rather than the highest block number. + * If this device makes that mistake, tell the sd driver. + */ + if (devinfo->flags & US_FL_FIX_CAPACITY) + sdev->fix_capacity = 1; + + /* + * Some devices don't like MODE SENSE with page=0x3f, + * which is the command used for checking if a device + * is write-protected. Now that we tell the sd driver + * to do a 192-byte transfer with this command the + * majority of devices work fine, but a few still can't + * handle it. The sd driver will simply assume those + * devices are write-enabled. + */ + if (devinfo->flags & US_FL_NO_WP_DETECT) + sdev->skip_ms_page_3f = 1; + scsi_change_queue_depth(sdev, devinfo->qdepth - 2); return 0; } From 78af87b8bbbbcaa613f1a7d8f14472fe9a7dc622 Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Wed, 29 Aug 2018 10:36:49 +0800 Subject: [PATCH 0639/1762] usb: mtu3: fix error of xhci port id when enable U3 dual role If dual role mode is enabled, when switch u3port0 to device mode, it will affect port id calculation of host(xHCI), specially when host supports multi U2 ports or U3 ports, so need enable its dual role mode, and fix it here. Signed-off-by: Chunfeng Yun Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/mtu3/mtu3_core.c | 6 +++++- drivers/usb/mtu3/mtu3_hw_regs.h | 1 + 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c index eecfd0671362..d045d8458f81 100644 --- a/drivers/usb/mtu3/mtu3_core.c +++ b/drivers/usb/mtu3/mtu3_core.c @@ -107,8 +107,12 @@ static int mtu3_device_enable(struct mtu3 *mtu) (SSUSB_U2_PORT_DIS | SSUSB_U2_PORT_PDN | SSUSB_U2_PORT_HOST_SEL)); - if (mtu->ssusb->dr_mode == USB_DR_MODE_OTG) + if (mtu->ssusb->dr_mode == USB_DR_MODE_OTG) { mtu3_setbits(ibase, SSUSB_U2_CTRL(0), SSUSB_U2_PORT_OTG_SEL); + if (mtu->is_u3_ip) + mtu3_setbits(ibase, SSUSB_U3_CTRL(0), + SSUSB_U3_PORT_DUAL_MODE); + } return ssusb_check_clocks(mtu->ssusb, check_clk); } diff --git a/drivers/usb/mtu3/mtu3_hw_regs.h b/drivers/usb/mtu3/mtu3_hw_regs.h index 6ee371478d89..a45bb253939f 100644 --- a/drivers/usb/mtu3/mtu3_hw_regs.h +++ b/drivers/usb/mtu3/mtu3_hw_regs.h @@ -459,6 +459,7 @@ /* U3D_SSUSB_U3_CTRL_0P */ #define SSUSB_U3_PORT_SSP_SPEED BIT(9) +#define SSUSB_U3_PORT_DUAL_MODE BIT(7) #define SSUSB_U3_PORT_HOST_SEL BIT(2) #define SSUSB_U3_PORT_PDN BIT(1) #define SSUSB_U3_PORT_DIS BIT(0) From ffa69d6a16f686efe45269342474e421f2aa58b2 Mon Sep 17 00:00:00 2001 From: Gaku Inami Date: Wed, 5 Sep 2018 10:49:36 +0200 Subject: [PATCH 0640/1762] spi: sh-msiof: Fix invalid SPI use during system suspend If the SPI queue is running during system suspend, the system may lock up. Fix this by stopping/restarting the queue during system suspend/resume by calling spi_master_suspend()/spi_master_resume() from the PM callbacks. In-kernel users will receive an -ESHUTDOWN error while system suspend/resume is in progress. Signed-off-by: Gaku Inami Signed-off-by: Hiromitsu Yamasaki [geert: Cleanup, reword] Signed-off-by: Geert Uytterhoeven Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/spi/spi-sh-msiof.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c index 539d6d1a277a..bfe4e6d4f7bf 100644 --- a/drivers/spi/spi-sh-msiof.c +++ b/drivers/spi/spi-sh-msiof.c @@ -1426,12 +1426,37 @@ static const struct platform_device_id spi_driver_ids[] = { }; MODULE_DEVICE_TABLE(platform, spi_driver_ids); +#ifdef CONFIG_PM_SLEEP +static int sh_msiof_spi_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct sh_msiof_spi_priv *p = platform_get_drvdata(pdev); + + return spi_master_suspend(p->master); +} + +static int sh_msiof_spi_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct sh_msiof_spi_priv *p = platform_get_drvdata(pdev); + + return spi_master_resume(p->master); +} + +static SIMPLE_DEV_PM_OPS(sh_msiof_spi_pm_ops, sh_msiof_spi_suspend, + sh_msiof_spi_resume); +#define DEV_PM_OPS &sh_msiof_spi_pm_ops +#else +#define DEV_PM_OPS NULL +#endif /* CONFIG_PM_SLEEP */ + static struct platform_driver sh_msiof_spi_drv = { .probe = sh_msiof_spi_probe, .remove = sh_msiof_spi_remove, .id_table = spi_driver_ids, .driver = { .name = "spi_sh_msiof", + .pm = DEV_PM_OPS, .of_match_table = of_match_ptr(sh_msiof_match), }, }; From 31a5fae4c5a009898da6d177901d5328051641ff Mon Sep 17 00:00:00 2001 From: Hiromitsu Yamasaki Date: Wed, 5 Sep 2018 10:49:37 +0200 Subject: [PATCH 0641/1762] spi: sh-msiof: Fix handling of write value for SISTR register This patch changes writing to the SISTR register according to the H/W user's manual. The TDREQ bit and RDREQ bits of SISTR are read-only, and must be written their initial values of zero. Signed-off-by: Hiromitsu Yamasaki [geert: reword] Signed-off-by: Geert Uytterhoeven Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/spi/spi-sh-msiof.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c index bfe4e6d4f7bf..101cd6aae2ea 100644 --- a/drivers/spi/spi-sh-msiof.c +++ b/drivers/spi/spi-sh-msiof.c @@ -397,7 +397,8 @@ static void sh_msiof_spi_set_mode_regs(struct sh_msiof_spi_priv *p, static void sh_msiof_reset_str(struct sh_msiof_spi_priv *p) { - sh_msiof_write(p, STR, sh_msiof_read(p, STR)); + sh_msiof_write(p, STR, + sh_msiof_read(p, STR) & ~(STR_TDREQ | STR_RDREQ)); } static void sh_msiof_spi_write_fifo_8(struct sh_msiof_spi_priv *p, From c1ca59c22c56930b377a665fdd1b43351887830b Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 5 Sep 2018 10:49:38 +0200 Subject: [PATCH 0642/1762] spi: rspi: Fix invalid SPI use during system suspend If the SPI queue is running during system suspend, the system may lock up. Fix this by stopping/restarting the queue during system suspend/resume, by calling spi_master_suspend()/spi_master_resume() from the PM callbacks. In-kernel users will receive an -ESHUTDOWN error while system suspend/resume is in progress. Based on a patch for sh-msiof by Gaku Inami. Signed-off-by: Geert Uytterhoeven Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/spi/spi-rspi.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index 95dc4d78618d..f93a4587e3fb 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -1350,12 +1350,36 @@ static const struct platform_device_id spi_driver_ids[] = { MODULE_DEVICE_TABLE(platform, spi_driver_ids); +#ifdef CONFIG_PM_SLEEP +static int rspi_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct rspi_data *rspi = platform_get_drvdata(pdev); + + return spi_master_suspend(rspi->master); +} + +static int rspi_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct rspi_data *rspi = platform_get_drvdata(pdev); + + return spi_master_resume(rspi->master); +} + +static SIMPLE_DEV_PM_OPS(rspi_pm_ops, rspi_suspend, rspi_resume); +#define DEV_PM_OPS &rspi_pm_ops +#else +#define DEV_PM_OPS NULL +#endif /* CONFIG_PM_SLEEP */ + static struct platform_driver rspi_driver = { .probe = rspi_probe, .remove = rspi_remove, .id_table = spi_driver_ids, .driver = { .name = "renesas_spi", + .pm = DEV_PM_OPS, .of_match_table = of_match_ptr(rspi_of_match), }, }; From 8dbbaa47b96f6ea5f09f922b4effff3c505cd8cf Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 5 Sep 2018 10:49:39 +0200 Subject: [PATCH 0643/1762] spi: rspi: Fix interrupted DMA transfers When interrupted, wait_event_interruptible_timeout() returns -ERESTARTSYS, and the SPI transfer in progress will fail, as expected: m25p80 spi0.0: SPI transfer failed: -512 spi_master spi0: failed to transfer one message from queue However, as the underlying DMA transfers may not have completed, all subsequent SPI transfers may start to fail: spi_master spi0: receive timeout qspi_transfer_out_in() returned -110 m25p80 spi0.0: SPI transfer failed: -110 spi_master spi0: failed to transfer one message from queue Fix this by calling dmaengine_terminate_all() not only for timeouts, but also for errors. This can be reproduced on r8a7991/koelsch, using "hd /dev/mtd0" followed by CTRL-C. Signed-off-by: Geert Uytterhoeven Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/spi/spi-rspi.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index f93a4587e3fb..b37de1d991d6 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -598,11 +598,13 @@ static int rspi_dma_transfer(struct rspi_data *rspi, struct sg_table *tx, ret = wait_event_interruptible_timeout(rspi->wait, rspi->dma_callbacked, HZ); - if (ret > 0 && rspi->dma_callbacked) + if (ret > 0 && rspi->dma_callbacked) { ret = 0; - else if (!ret) { - dev_err(&rspi->master->dev, "DMA timeout\n"); - ret = -ETIMEDOUT; + } else { + if (!ret) { + dev_err(&rspi->master->dev, "DMA timeout\n"); + ret = -ETIMEDOUT; + } if (tx) dmaengine_terminate_all(rspi->master->dma_tx); if (rx) From f3dc41c5d22b2ca14a0802a65d8cdc33a3882d4e Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Tue, 4 Sep 2018 17:35:16 +0300 Subject: [PATCH 0644/1762] usb: Don't die twice if PCI xhci host is not responding in resume usb_hc_died() should only be called once, and with the primary HCD as parameter. It will mark both primary and secondary hcd's dead. Remove the extra call to usb_cd_died with the shared hcd as parameter. Fixes: ff9d78b36f76 ("USB: Set usb_hcd->state and flags for shared roothubs") Signed-off-by: Mathias Nyman Cc: stable Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hcd-pci.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index 66fe1b78d952..03432467b05f 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -515,8 +515,6 @@ static int resume_common(struct device *dev, int event) event == PM_EVENT_RESTORE); if (retval) { dev_err(dev, "PCI post-resume error %d!\n", retval); - if (hcd->shared_hcd) - usb_hc_died(hcd->shared_hcd); usb_hc_died(hcd); } } From 40de5fe4f45c5b804ea085d7e3f1a72fc6705929 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 3 Sep 2018 12:58:35 -0700 Subject: [PATCH 0645/1762] usb/typec: fix kernel-doc notation warning for typec_match_altmode Fix kernel-doc warning for missing function parameter 'mode' description: ../drivers/usb/typec/bus.c:268: warning: Function parameter or member 'mode' not described in 'typec_match_altmode' Also fix typos for same function documentation. Fixes: 8a37d87d72f0 ("usb: typec: Bus type for alternate modes") Signed-off-by: Randy Dunlap Acked-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/bus.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/usb/typec/bus.c b/drivers/usb/typec/bus.c index 95a2b10127db..76299b6ff06d 100644 --- a/drivers/usb/typec/bus.c +++ b/drivers/usb/typec/bus.c @@ -255,12 +255,13 @@ EXPORT_SYMBOL_GPL(typec_altmode_unregister_driver); /* API for the port drivers */ /** - * typec_match_altmode - Match SVID to an array of alternate modes + * typec_match_altmode - Match SVID and mode to an array of alternate modes * @altmodes: Array of alternate modes - * @n: Number of elements in the array, or -1 for NULL termiated arrays + * @n: Number of elements in the array, or -1 for NULL terminated arrays * @svid: Standard or Vendor ID to match with + * @mode: Mode to match with * - * Return pointer to an alternate mode with SVID mathing @svid, or NULL when no + * Return pointer to an alternate mode with SVID matching @svid, or NULL when no * match is found. */ struct typec_altmode *typec_match_altmode(struct typec_altmode **altmodes, From d23df2dc56325c72b51670b1fb400ddd23dc17cd Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 3 Sep 2018 12:51:59 -0700 Subject: [PATCH 0646/1762] linux/mod_devicetable.h: fix kernel-doc missing notation for typec_device_id Fix kernel-doc warning for missing struct member description: ../include/linux/mod_devicetable.h:763: warning: Function parameter or member 'driver_data' not described in 'typec_device_id' Fixes: 8a37d87d72f0c ("usb: typec: Bus type for alternate modes") Signed-off-by: Randy Dunlap Cc: Heikki Krogerus Reviewed-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman --- include/linux/mod_devicetable.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index 1298a7daa57d..01797cb4587e 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -754,6 +754,7 @@ struct tb_service_id { * struct typec_device_id - USB Type-C alternate mode identifiers * @svid: Standard or Vendor ID * @mode: Mode index + * @driver_data: Driver specific data */ struct typec_device_id { __u16 svid; From f9a5b4f58b280c1d26255376713c132f93837621 Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Mon, 3 Sep 2018 15:44:16 +0300 Subject: [PATCH 0647/1762] usb: Avoid use-after-free by flushing endpoints early in usb_set_interface() The steps taken by usb core to set a new interface is very different from what is done on the xHC host side. xHC hardware will do everything in one go. One command is used to set up new endpoints, free old endpoints, check bandwidth, and run the new endpoints. All this is done by xHC when usb core asks the hcd to check for available bandwidth. At this point usb core has not yet flushed the old endpoints, which will cause use-after-free issues in xhci driver as queued URBs are cancelled on a re-allocated endpoint. To resolve this add a call to usb_disable_interface() which will flush the endpoints before calling usb_hcd_alloc_bandwidth() Additional checks in xhci driver will also be implemented to gracefully handle stale URB cancel on freed and re-allocated endpoints Cc: Reported-by: Sudip Mukherjee Signed-off-by: Mathias Nyman Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/message.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 228672f2c4a1..bfa5eda0cc26 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1341,6 +1341,11 @@ void usb_enable_interface(struct usb_device *dev, * is submitted that needs that bandwidth. Some other operating systems * allocate bandwidth early, when a configuration is chosen. * + * xHCI reserves bandwidth and configures the alternate setting in + * usb_hcd_alloc_bandwidth(). If it fails the original interface altsetting + * may be disabled. Drivers cannot rely on any particular alternate + * setting being in effect after a failure. + * * This call is synchronous, and may not be used in an interrupt context. * Also, drivers must not change altsettings while urbs are scheduled for * endpoints in that interface; all such urbs must first be completed @@ -1376,6 +1381,12 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate) alternate); return -EINVAL; } + /* + * usb3 hosts configure the interface in usb_hcd_alloc_bandwidth, + * including freeing dropped endpoint ring buffers. + * Make sure the interface endpoints are flushed before that + */ + usb_disable_interface(dev, iface, false); /* Make sure we have enough bandwidth for this alternate interface. * Remove the current alt setting and add the new alt setting. From 6d4f268fa132742fe96dad22307c68d237356d88 Mon Sep 17 00:00:00 2001 From: Jia-Ju Bai Date: Sat, 1 Sep 2018 17:23:47 +0800 Subject: [PATCH 0648/1762] usb: host: u132-hcd: Fix a sleep-in-atomic-context bug in u132_get_frame() i_usX2Y_subs_startup in usbusx2yaudio.c is a completion handler function for the USB driver. So it should not sleep, but it is can sleep according to the function call paths (from bottom to top) in Linux-4.16. [FUNC] msleep drivers/usb/host/u132-hcd.c, 2558: msleep in u132_get_frame drivers/usb/core/hcd.c, 2231: [FUNC_PTR]u132_get_frame in usb_hcd_get_frame_number drivers/usb/core/usb.c, 822: usb_hcd_get_frame_number in usb_get_current_frame_number sound/usb/usx2y/usbusx2yaudio.c, 303: usb_get_current_frame_number in i_usX2Y_urb_complete sound/usb/usx2y/usbusx2yaudio.c, 366: i_usX2Y_urb_complete in i_usX2Y_subs_startup Note that [FUNC_PTR] means a function pointer call is used. To fix this bug, msleep() is replaced with mdelay(). This bug is found by my static analysis tool DSAC. Signed-off-by: Jia-Ju Bai Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/u132-hcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index 072bd5d5738e..5b8a3d9530c4 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -2555,7 +2555,7 @@ static int u132_get_frame(struct usb_hcd *hcd) } else { int frame = 0; dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n"); - msleep(100); + mdelay(100); return frame; } } From bc8acc214d3f1cafebcbcd101a695bbac716595d Mon Sep 17 00:00:00 2001 From: Jia-Ju Bai Date: Sat, 1 Sep 2018 16:25:08 +0800 Subject: [PATCH 0649/1762] usb: misc: uss720: Fix two sleep-in-atomic-context bugs async_complete() in uss720.c is a completion handler function for the USB driver. So it should not sleep, but it is can sleep according to the function call paths (from bottom to top) in Linux-4.16. [FUNC] set_1284_register(GFP_KERNEL) drivers/usb/misc/uss720.c, 372: set_1284_register in parport_uss720_frob_control drivers/parport/ieee1284.c, 560: [FUNC_PTR]parport_uss720_frob_control in parport_ieee1284_ack_data_avail drivers/parport/ieee1284.c, 577: parport_ieee1284_ack_data_avail in parport_ieee1284_interrupt ./include/linux/parport.h, 474: parport_ieee1284_interrupt in parport_generic_irq drivers/usb/misc/uss720.c, 116: parport_generic_irq in async_complete [FUNC] get_1284_register(GFP_KERNEL) drivers/usb/misc/uss720.c, 382: get_1284_register in parport_uss720_read_status drivers/parport/ieee1284.c, 555: [FUNC_PTR]parport_uss720_read_status in parport_ieee1284_ack_data_avail drivers/parport/ieee1284.c, 577: parport_ieee1284_ack_data_avail in parport_ieee1284_interrupt ./include/linux/parport.h, 474: parport_ieee1284_interrupt in parport_generic_irq drivers/usb/misc/uss720.c, 116: parport_generic_irq in async_complete Note that [FUNC_PTR] means a function pointer call is used. To fix these bugs, GFP_KERNEL is replaced with GFP_ATOMIC. These bugs are found by my static analysis tool DSAC. Signed-off-by: Jia-Ju Bai Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/uss720.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/misc/uss720.c b/drivers/usb/misc/uss720.c index 82f220631bd7..b5d661644263 100644 --- a/drivers/usb/misc/uss720.c +++ b/drivers/usb/misc/uss720.c @@ -369,7 +369,7 @@ static unsigned char parport_uss720_frob_control(struct parport *pp, unsigned ch mask &= 0x0f; val &= 0x0f; d = (priv->reg[1] & (~mask)) ^ val; - if (set_1284_register(pp, 2, d, GFP_KERNEL)) + if (set_1284_register(pp, 2, d, GFP_ATOMIC)) return 0; priv->reg[1] = d; return d & 0xf; @@ -379,7 +379,7 @@ static unsigned char parport_uss720_read_status(struct parport *pp) { unsigned char ret; - if (get_1284_register(pp, 1, &ret, GFP_KERNEL)) + if (get_1284_register(pp, 1, &ret, GFP_ATOMIC)) return 0; return ret & 0xf8; } From 6e22e3af7bb3a7b9dc53cb4687659f6e63fca427 Mon Sep 17 00:00:00 2001 From: Jia-Ju Bai Date: Sat, 1 Sep 2018 16:12:10 +0800 Subject: [PATCH 0650/1762] usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt() wdm_in_callback() is a completion handler function for the USB driver. So it should not sleep. But it calls service_outstanding_interrupt(), which calls usb_submit_urb() with GFP_KERNEL. To fix this bug, GFP_KERNEL is replaced with GFP_ATOMIC. This bug is found by my static analysis tool DSAC. Signed-off-by: Jia-Ju Bai Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-wdm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index bec581fb7c63..656d247819c9 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -460,7 +460,7 @@ static int service_outstanding_interrupt(struct wdm_device *desc) set_bit(WDM_RESPONDING, &desc->flags); spin_unlock_irq(&desc->iuspin); - rv = usb_submit_urb(desc->response, GFP_KERNEL); + rv = usb_submit_urb(desc->response, GFP_ATOMIC); spin_lock_irq(&desc->iuspin); if (rv) { dev_err(&desc->intf->dev, From b2d35fa5fc80c27e868e393dcab4c94a0d71737f Mon Sep 17 00:00:00 2001 From: Anders Roxell Date: Tue, 4 Sep 2018 12:47:21 +0200 Subject: [PATCH 0651/1762] selftests: add headers_install to lib.mk If the kernel headers aren't installed we can't build all the tests. Add a new make target rule 'khdr' in the file lib.mk to generate the kernel headers and that gets include for every test-dir Makefile that includes lib.mk If the testdir in turn have its own sub-dirs the top_srcdir needs to be set to the linux-rootdir to be able to generate the kernel headers. Signed-off-by: Anders Roxell Reviewed-by: Fathi Boudra Signed-off-by: Shuah Khan (Samsung OSG) --- Makefile | 14 +------------- scripts/subarch.include | 13 +++++++++++++ tools/testing/selftests/android/Makefile | 2 +- tools/testing/selftests/android/ion/Makefile | 2 ++ tools/testing/selftests/futex/functional/Makefile | 1 + tools/testing/selftests/gpio/Makefile | 7 ++----- tools/testing/selftests/kvm/Makefile | 7 ++----- tools/testing/selftests/lib.mk | 12 ++++++++++++ tools/testing/selftests/net/Makefile | 1 + .../selftests/networking/timestamping/Makefile | 1 + tools/testing/selftests/vm/Makefile | 4 ---- 11 files changed, 36 insertions(+), 28 deletions(-) create mode 100644 scripts/subarch.include diff --git a/Makefile b/Makefile index 2b458801ba74..8b3fbdb2759b 100644 --- a/Makefile +++ b/Makefile @@ -299,19 +299,7 @@ KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION -# SUBARCH tells the usermode build what the underlying arch is. That is set -# first, and if a usermode build is happening, the "ARCH=um" on the command -# line overrides the setting of ARCH below. If a native build is happening, -# then ARCH is assigned, getting whatever value it gets normally, and -# SUBARCH is subsequently ignored. - -SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ - -e s/sun4u/sparc64/ \ - -e s/arm.*/arm/ -e s/sa110/arm/ \ - -e s/s390x/s390/ -e s/parisc64/parisc/ \ - -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ - -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \ - -e s/riscv.*/riscv/) +include scripts/subarch.include # Cross compiling and selecting different set of gcc/bin-utils # --------------------------------------------------------------------------- diff --git a/scripts/subarch.include b/scripts/subarch.include new file mode 100644 index 000000000000..650682821126 --- /dev/null +++ b/scripts/subarch.include @@ -0,0 +1,13 @@ +# SUBARCH tells the usermode build what the underlying arch is. That is set +# first, and if a usermode build is happening, the "ARCH=um" on the command +# line overrides the setting of ARCH below. If a native build is happening, +# then ARCH is assigned, getting whatever value it gets normally, and +# SUBARCH is subsequently ignored. + +SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ + -e s/sun4u/sparc64/ \ + -e s/arm.*/arm/ -e s/sa110/arm/ \ + -e s/s390x/s390/ -e s/parisc64/parisc/ \ + -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ + -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \ + -e s/riscv.*/riscv/) diff --git a/tools/testing/selftests/android/Makefile b/tools/testing/selftests/android/Makefile index 72c25a3cb658..d9a725478375 100644 --- a/tools/testing/selftests/android/Makefile +++ b/tools/testing/selftests/android/Makefile @@ -6,7 +6,7 @@ TEST_PROGS := run.sh include ../lib.mk -all: +all: khdr @for DIR in $(SUBDIRS); do \ BUILD_TARGET=$(OUTPUT)/$$DIR; \ mkdir $$BUILD_TARGET -p; \ diff --git a/tools/testing/selftests/android/ion/Makefile b/tools/testing/selftests/android/ion/Makefile index e03695287f76..88cfe88e466f 100644 --- a/tools/testing/selftests/android/ion/Makefile +++ b/tools/testing/selftests/android/ion/Makefile @@ -10,6 +10,8 @@ $(TEST_GEN_FILES): ipcsocket.c ionutils.c TEST_PROGS := ion_test.sh +KSFT_KHDR_INSTALL := 1 +top_srcdir = ../../../../.. include ../../lib.mk $(OUTPUT)/ionapp_export: ionapp_export.c ipcsocket.c ionutils.c diff --git a/tools/testing/selftests/futex/functional/Makefile b/tools/testing/selftests/futex/functional/Makefile index ff8feca49746..ad1eeb14fda7 100644 --- a/tools/testing/selftests/futex/functional/Makefile +++ b/tools/testing/selftests/futex/functional/Makefile @@ -18,6 +18,7 @@ TEST_GEN_FILES := \ TEST_PROGS := run.sh +top_srcdir = ../../../../.. include ../../lib.mk $(TEST_GEN_FILES): $(HEADERS) diff --git a/tools/testing/selftests/gpio/Makefile b/tools/testing/selftests/gpio/Makefile index 1bbb47565c55..4665cdbf1a8d 100644 --- a/tools/testing/selftests/gpio/Makefile +++ b/tools/testing/selftests/gpio/Makefile @@ -21,11 +21,8 @@ endef CFLAGS += -O2 -g -std=gnu99 -Wall -I../../../../usr/include/ LDLIBS += -lmount -I/usr/include/libmount -$(BINARIES): ../../../gpio/gpio-utils.o ../../../../usr/include/linux/gpio.h +$(BINARIES):| khdr +$(BINARIES): ../../../gpio/gpio-utils.o ../../../gpio/gpio-utils.o: make ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) -C ../../../gpio - -../../../../usr/include/linux/gpio.h: - make -C ../../../.. headers_install INSTALL_HDR_PATH=$(shell pwd)/../../../../usr/ - diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile index 03b0f551bedf..87d1a8488af8 100644 --- a/tools/testing/selftests/kvm/Makefile +++ b/tools/testing/selftests/kvm/Makefile @@ -37,9 +37,6 @@ $(LIBKVM_OBJ): $(OUTPUT)/%.o: %.c $(OUTPUT)/libkvm.a: $(LIBKVM_OBJ) $(AR) crs $@ $^ -$(LINUX_HDR_PATH): - make -C $(top_srcdir) headers_install - -all: $(STATIC_LIBS) $(LINUX_HDR_PATH) +all: $(STATIC_LIBS) $(TEST_GEN_PROGS): $(STATIC_LIBS) -$(TEST_GEN_PROGS) $(LIBKVM_OBJ): | $(LINUX_HDR_PATH) +$(STATIC_LIBS):| khdr diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk index 17ab36605a8e..0a8e75886224 100644 --- a/tools/testing/selftests/lib.mk +++ b/tools/testing/selftests/lib.mk @@ -16,8 +16,20 @@ TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS)) TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED)) TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES)) +top_srcdir ?= ../../../.. +include $(top_srcdir)/scripts/subarch.include +ARCH ?= $(SUBARCH) + all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) +.PHONY: khdr +khdr: + make ARCH=$(ARCH) -C $(top_srcdir) headers_install + +ifdef KSFT_KHDR_INSTALL +$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES):| khdr +endif + .ONESHELL: define RUN_TEST_PRINT_RESULT TEST_HDR_MSG="selftests: "`basename $$PWD`:" $$BASENAME_TEST"; \ diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile index 9cca68e440a0..919aa2ac00af 100644 --- a/tools/testing/selftests/net/Makefile +++ b/tools/testing/selftests/net/Makefile @@ -15,6 +15,7 @@ TEST_GEN_FILES += udpgso udpgso_bench_tx udpgso_bench_rx TEST_GEN_PROGS = reuseport_bpf reuseport_bpf_cpu reuseport_bpf_numa TEST_GEN_PROGS += reuseport_dualstack reuseaddr_conflict tls +KSFT_KHDR_INSTALL := 1 include ../lib.mk $(OUTPUT)/reuseport_bpf_numa: LDFLAGS += -lnuma diff --git a/tools/testing/selftests/networking/timestamping/Makefile b/tools/testing/selftests/networking/timestamping/Makefile index a728040edbe1..14cfcf006936 100644 --- a/tools/testing/selftests/networking/timestamping/Makefile +++ b/tools/testing/selftests/networking/timestamping/Makefile @@ -5,6 +5,7 @@ TEST_PROGS := hwtstamp_config rxtimestamp timestamping txtimestamp all: $(TEST_PROGS) +top_srcdir = ../../../../.. include ../../lib.mk clean: diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile index 9881876d2aa0..e94b7b14bcb2 100644 --- a/tools/testing/selftests/vm/Makefile +++ b/tools/testing/selftests/vm/Makefile @@ -26,10 +26,6 @@ TEST_PROGS := run_vmtests include ../lib.mk -$(OUTPUT)/userfaultfd: ../../../../usr/include/linux/kernel.h $(OUTPUT)/userfaultfd: LDLIBS += -lpthread $(OUTPUT)/mlock-random-test: LDLIBS += -lcap - -../../../../usr/include/linux/kernel.h: - make -C ../../../.. headers_install From 3a3539cd36327c6f9e0ffd9f3fd3dea7ff8b3567 Mon Sep 17 00:00:00 2001 From: Petr Machata Date: Wed, 5 Sep 2018 12:16:00 +0200 Subject: [PATCH 0652/1762] mlxsw: spectrum_buffers: Set up a dedicated pool for BUM traffic MC-aware mode was recently enabled by mlxsw on Spectrum switches in commit 7b8195306694 ("mlxsw: spectrum: Configure MC-aware mode on mlxsw ports"). Unfortunately, testing has shown that the fix is incomplete and in the presented form actually makes the problem even worse, because any amount of MC traffic causes UC disruption. The reason for this is that currently, mlxsw configures the MC-specific TCs (8..15) to map to pool 0. It also configures a maximum buffer size of 0, but for MC traffic that maximum is disregarded and not part of the quota. Therefore MC traffic is always admitted to the egress buffer. Fix the configuration by directing the MC TCs into pool 15, which is dedicated to MC traffic and recognized as such by the silicon. Fixes: 7b8195306694 ("mlxsw: spectrum: Configure MC-aware mode on mlxsw ports") Signed-off-by: Petr Machata Acked-by: Jiri Pirko Signed-off-by: David S. Miller --- .../ethernet/mellanox/mlxsw/spectrum_buffers.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c index 4327487553c5..3589432d1643 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c @@ -337,14 +337,14 @@ static const struct mlxsw_sp_sb_cm mlxsw_sp_sb_cms_egress[] = { MLXSW_SP_SB_CM(1500, 9, 0), MLXSW_SP_SB_CM(1500, 9, 0), MLXSW_SP_SB_CM(1500, 9, 0), - MLXSW_SP_SB_CM(0, 0, 0), - MLXSW_SP_SB_CM(0, 0, 0), - MLXSW_SP_SB_CM(0, 0, 0), - MLXSW_SP_SB_CM(0, 0, 0), - MLXSW_SP_SB_CM(0, 0, 0), - MLXSW_SP_SB_CM(0, 0, 0), - MLXSW_SP_SB_CM(0, 0, 0), - MLXSW_SP_SB_CM(0, 0, 0), + MLXSW_SP_SB_CM(0, 140000, 15), + MLXSW_SP_SB_CM(0, 140000, 15), + MLXSW_SP_SB_CM(0, 140000, 15), + MLXSW_SP_SB_CM(0, 140000, 15), + MLXSW_SP_SB_CM(0, 140000, 15), + MLXSW_SP_SB_CM(0, 140000, 15), + MLXSW_SP_SB_CM(0, 140000, 15), + MLXSW_SP_SB_CM(0, 140000, 15), MLXSW_SP_SB_CM(1, 0xff, 0), }; From 9d7f19dc4673fbafebfcbf30eb90e09fa7d1c037 Mon Sep 17 00:00:00 2001 From: Petr Oros Date: Wed, 5 Sep 2018 14:37:45 +0200 Subject: [PATCH 0653/1762] be2net: Fix memory leak in be_cmd_get_profile_config() DMA allocated memory is lost in be_cmd_get_profile_config() when we call it with non-NULL port_res parameter. Signed-off-by: Petr Oros Reviewed-by: Ivan Vecera Signed-off-by: David S. Miller --- drivers/net/ethernet/emulex/benet/be_cmds.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c index ff92ab1daeb8..1e9d882c04ef 100644 --- a/drivers/net/ethernet/emulex/benet/be_cmds.c +++ b/drivers/net/ethernet/emulex/benet/be_cmds.c @@ -4500,7 +4500,7 @@ int be_cmd_get_profile_config(struct be_adapter *adapter, port_res->max_vfs += le16_to_cpu(pcie->num_vfs); } } - return status; + goto err; } pcie = be_get_pcie_desc(resp->func_param, desc_count, From e65a9e480e91ddf9e15155454d370cead64689c8 Mon Sep 17 00:00:00 2001 From: Stefan Wahren Date: Wed, 5 Sep 2018 15:23:18 +0200 Subject: [PATCH 0654/1762] net: qca_spi: Fix race condition in spi transfers With performance optimization the spi transfer and messages of basic register operations like qcaspi_read_register moved into the private driver structure. But they weren't protected against mutual access (e.g. between driver kthread and ethtool). So dumping the QCA7000 registers via ethtool during network traffic could make spi_sync hang forever, because the completion in spi_message is overwritten. So revert the optimization completely. Fixes: 291ab06ecf676 ("net: qualcomm: new Ethernet over SPI driver for QCA700") Signed-off-by: Stefan Wahren Signed-off-by: David S. Miller --- drivers/net/ethernet/qualcomm/qca_7k.c | 76 ++++++++-------- drivers/net/ethernet/qualcomm/qca_spi.c | 112 ++++++++++++------------ drivers/net/ethernet/qualcomm/qca_spi.h | 5 -- 3 files changed, 94 insertions(+), 99 deletions(-) diff --git a/drivers/net/ethernet/qualcomm/qca_7k.c b/drivers/net/ethernet/qualcomm/qca_7k.c index ffe7a16bdfc8..6c8543fb90c0 100644 --- a/drivers/net/ethernet/qualcomm/qca_7k.c +++ b/drivers/net/ethernet/qualcomm/qca_7k.c @@ -45,34 +45,33 @@ qcaspi_read_register(struct qcaspi *qca, u16 reg, u16 *result) { __be16 rx_data; __be16 tx_data; - struct spi_transfer *transfer; - struct spi_message *msg; + struct spi_transfer transfer[2]; + struct spi_message msg; int ret; + memset(transfer, 0, sizeof(transfer)); + + spi_message_init(&msg); + tx_data = cpu_to_be16(QCA7K_SPI_READ | QCA7K_SPI_INTERNAL | reg); + *result = 0; + + transfer[0].tx_buf = &tx_data; + transfer[0].len = QCASPI_CMD_LEN; + transfer[1].rx_buf = &rx_data; + transfer[1].len = QCASPI_CMD_LEN; + + spi_message_add_tail(&transfer[0], &msg); if (qca->legacy_mode) { - msg = &qca->spi_msg1; - transfer = &qca->spi_xfer1; - transfer->tx_buf = &tx_data; - transfer->rx_buf = NULL; - transfer->len = QCASPI_CMD_LEN; - spi_sync(qca->spi_dev, msg); - } else { - msg = &qca->spi_msg2; - transfer = &qca->spi_xfer2[0]; - transfer->tx_buf = &tx_data; - transfer->rx_buf = NULL; - transfer->len = QCASPI_CMD_LEN; - transfer = &qca->spi_xfer2[1]; + spi_sync(qca->spi_dev, &msg); + spi_message_init(&msg); } - transfer->tx_buf = NULL; - transfer->rx_buf = &rx_data; - transfer->len = QCASPI_CMD_LEN; - ret = spi_sync(qca->spi_dev, msg); + spi_message_add_tail(&transfer[1], &msg); + ret = spi_sync(qca->spi_dev, &msg); if (!ret) - ret = msg->status; + ret = msg.status; if (ret) qcaspi_spi_error(qca); @@ -86,35 +85,32 @@ int qcaspi_write_register(struct qcaspi *qca, u16 reg, u16 value) { __be16 tx_data[2]; - struct spi_transfer *transfer; - struct spi_message *msg; + struct spi_transfer transfer[2]; + struct spi_message msg; int ret; + memset(&transfer, 0, sizeof(transfer)); + + spi_message_init(&msg); + tx_data[0] = cpu_to_be16(QCA7K_SPI_WRITE | QCA7K_SPI_INTERNAL | reg); tx_data[1] = cpu_to_be16(value); + transfer[0].tx_buf = &tx_data[0]; + transfer[0].len = QCASPI_CMD_LEN; + transfer[1].tx_buf = &tx_data[1]; + transfer[1].len = QCASPI_CMD_LEN; + + spi_message_add_tail(&transfer[0], &msg); if (qca->legacy_mode) { - msg = &qca->spi_msg1; - transfer = &qca->spi_xfer1; - transfer->tx_buf = &tx_data[0]; - transfer->rx_buf = NULL; - transfer->len = QCASPI_CMD_LEN; - spi_sync(qca->spi_dev, msg); - } else { - msg = &qca->spi_msg2; - transfer = &qca->spi_xfer2[0]; - transfer->tx_buf = &tx_data[0]; - transfer->rx_buf = NULL; - transfer->len = QCASPI_CMD_LEN; - transfer = &qca->spi_xfer2[1]; + spi_sync(qca->spi_dev, &msg); + spi_message_init(&msg); } - transfer->tx_buf = &tx_data[1]; - transfer->rx_buf = NULL; - transfer->len = QCASPI_CMD_LEN; - ret = spi_sync(qca->spi_dev, msg); + spi_message_add_tail(&transfer[1], &msg); + ret = spi_sync(qca->spi_dev, &msg); if (!ret) - ret = msg->status; + ret = msg.status; if (ret) qcaspi_spi_error(qca); diff --git a/drivers/net/ethernet/qualcomm/qca_spi.c b/drivers/net/ethernet/qualcomm/qca_spi.c index 206f0266463e..66b775d462fd 100644 --- a/drivers/net/ethernet/qualcomm/qca_spi.c +++ b/drivers/net/ethernet/qualcomm/qca_spi.c @@ -99,22 +99,24 @@ static u32 qcaspi_write_burst(struct qcaspi *qca, u8 *src, u32 len) { __be16 cmd; - struct spi_message *msg = &qca->spi_msg2; - struct spi_transfer *transfer = &qca->spi_xfer2[0]; + struct spi_message msg; + struct spi_transfer transfer[2]; int ret; + memset(&transfer, 0, sizeof(transfer)); + spi_message_init(&msg); + cmd = cpu_to_be16(QCA7K_SPI_WRITE | QCA7K_SPI_EXTERNAL); - transfer->tx_buf = &cmd; - transfer->rx_buf = NULL; - transfer->len = QCASPI_CMD_LEN; - transfer = &qca->spi_xfer2[1]; - transfer->tx_buf = src; - transfer->rx_buf = NULL; - transfer->len = len; + transfer[0].tx_buf = &cmd; + transfer[0].len = QCASPI_CMD_LEN; + transfer[1].tx_buf = src; + transfer[1].len = len; - ret = spi_sync(qca->spi_dev, msg); + spi_message_add_tail(&transfer[0], &msg); + spi_message_add_tail(&transfer[1], &msg); + ret = spi_sync(qca->spi_dev, &msg); - if (ret || (msg->actual_length != QCASPI_CMD_LEN + len)) { + if (ret || (msg.actual_length != QCASPI_CMD_LEN + len)) { qcaspi_spi_error(qca); return 0; } @@ -125,17 +127,20 @@ qcaspi_write_burst(struct qcaspi *qca, u8 *src, u32 len) static u32 qcaspi_write_legacy(struct qcaspi *qca, u8 *src, u32 len) { - struct spi_message *msg = &qca->spi_msg1; - struct spi_transfer *transfer = &qca->spi_xfer1; + struct spi_message msg; + struct spi_transfer transfer; int ret; - transfer->tx_buf = src; - transfer->rx_buf = NULL; - transfer->len = len; + memset(&transfer, 0, sizeof(transfer)); + spi_message_init(&msg); - ret = spi_sync(qca->spi_dev, msg); + transfer.tx_buf = src; + transfer.len = len; - if (ret || (msg->actual_length != len)) { + spi_message_add_tail(&transfer, &msg); + ret = spi_sync(qca->spi_dev, &msg); + + if (ret || (msg.actual_length != len)) { qcaspi_spi_error(qca); return 0; } @@ -146,23 +151,25 @@ qcaspi_write_legacy(struct qcaspi *qca, u8 *src, u32 len) static u32 qcaspi_read_burst(struct qcaspi *qca, u8 *dst, u32 len) { - struct spi_message *msg = &qca->spi_msg2; + struct spi_message msg; __be16 cmd; - struct spi_transfer *transfer = &qca->spi_xfer2[0]; + struct spi_transfer transfer[2]; int ret; + memset(&transfer, 0, sizeof(transfer)); + spi_message_init(&msg); + cmd = cpu_to_be16(QCA7K_SPI_READ | QCA7K_SPI_EXTERNAL); - transfer->tx_buf = &cmd; - transfer->rx_buf = NULL; - transfer->len = QCASPI_CMD_LEN; - transfer = &qca->spi_xfer2[1]; - transfer->tx_buf = NULL; - transfer->rx_buf = dst; - transfer->len = len; + transfer[0].tx_buf = &cmd; + transfer[0].len = QCASPI_CMD_LEN; + transfer[1].rx_buf = dst; + transfer[1].len = len; - ret = spi_sync(qca->spi_dev, msg); + spi_message_add_tail(&transfer[0], &msg); + spi_message_add_tail(&transfer[1], &msg); + ret = spi_sync(qca->spi_dev, &msg); - if (ret || (msg->actual_length != QCASPI_CMD_LEN + len)) { + if (ret || (msg.actual_length != QCASPI_CMD_LEN + len)) { qcaspi_spi_error(qca); return 0; } @@ -173,17 +180,20 @@ qcaspi_read_burst(struct qcaspi *qca, u8 *dst, u32 len) static u32 qcaspi_read_legacy(struct qcaspi *qca, u8 *dst, u32 len) { - struct spi_message *msg = &qca->spi_msg1; - struct spi_transfer *transfer = &qca->spi_xfer1; + struct spi_message msg; + struct spi_transfer transfer; int ret; - transfer->tx_buf = NULL; - transfer->rx_buf = dst; - transfer->len = len; + memset(&transfer, 0, sizeof(transfer)); + spi_message_init(&msg); - ret = spi_sync(qca->spi_dev, msg); + transfer.rx_buf = dst; + transfer.len = len; - if (ret || (msg->actual_length != len)) { + spi_message_add_tail(&transfer, &msg); + ret = spi_sync(qca->spi_dev, &msg); + + if (ret || (msg.actual_length != len)) { qcaspi_spi_error(qca); return 0; } @@ -195,19 +205,23 @@ static int qcaspi_tx_cmd(struct qcaspi *qca, u16 cmd) { __be16 tx_data; - struct spi_message *msg = &qca->spi_msg1; - struct spi_transfer *transfer = &qca->spi_xfer1; + struct spi_message msg; + struct spi_transfer transfer; int ret; - tx_data = cpu_to_be16(cmd); - transfer->len = sizeof(tx_data); - transfer->tx_buf = &tx_data; - transfer->rx_buf = NULL; + memset(&transfer, 0, sizeof(transfer)); - ret = spi_sync(qca->spi_dev, msg); + spi_message_init(&msg); + + tx_data = cpu_to_be16(cmd); + transfer.len = sizeof(cmd); + transfer.tx_buf = &tx_data; + spi_message_add_tail(&transfer, &msg); + + ret = spi_sync(qca->spi_dev, &msg); if (!ret) - ret = msg->status; + ret = msg.status; if (ret) qcaspi_spi_error(qca); @@ -835,16 +849,6 @@ qcaspi_netdev_setup(struct net_device *dev) qca = netdev_priv(dev); memset(qca, 0, sizeof(struct qcaspi)); - memset(&qca->spi_xfer1, 0, sizeof(struct spi_transfer)); - memset(&qca->spi_xfer2, 0, sizeof(struct spi_transfer) * 2); - - spi_message_init(&qca->spi_msg1); - spi_message_add_tail(&qca->spi_xfer1, &qca->spi_msg1); - - spi_message_init(&qca->spi_msg2); - spi_message_add_tail(&qca->spi_xfer2[0], &qca->spi_msg2); - spi_message_add_tail(&qca->spi_xfer2[1], &qca->spi_msg2); - memset(&qca->txr, 0, sizeof(qca->txr)); qca->txr.count = TX_RING_MAX_LEN; } diff --git a/drivers/net/ethernet/qualcomm/qca_spi.h b/drivers/net/ethernet/qualcomm/qca_spi.h index fc4beb1b32d1..fc0e98726b36 100644 --- a/drivers/net/ethernet/qualcomm/qca_spi.h +++ b/drivers/net/ethernet/qualcomm/qca_spi.h @@ -83,11 +83,6 @@ struct qcaspi { struct tx_ring txr; struct qcaspi_stats stats; - struct spi_message spi_msg1; - struct spi_message spi_msg2; - struct spi_transfer spi_xfer1; - struct spi_transfer spi_xfer2[2]; - u8 *rx_buffer; u32 buffer_size; u8 sync; From 865e63b04e9b2a658d7f26bd13a71dcd964a9118 Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (VMware)" Date: Tue, 4 Sep 2018 16:26:11 -0400 Subject: [PATCH 0655/1762] tracing: Add back in rcu_irq_enter/exit_irqson() for rcuidle tracepoints Borislav reported the following splat: ============================= WARNING: suspicious RCU usage 4.19.0-rc1+ #1 Not tainted ----------------------------- ./include/linux/rcupdate.h:631 rcu_read_lock() used illegally while idle! other info that might help us debug this: RCU used illegally from idle CPU! rcu_scheduler_active = 2, debug_locks = 1 RCU used illegally from extended quiescent state! 1 lock held by swapper/0/0: #0: 000000004557ee0e (rcu_read_lock){....}, at: perf_event_output_forward+0x0/0x130 stack backtrace: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.0-rc1+ #1 Hardware name: LENOVO 2320CTO/2320CTO, BIOS G2ET86WW (2.06 ) 11/13/2012 Call Trace: dump_stack+0x85/0xcb perf_event_output_forward+0xf6/0x130 __perf_event_overflow+0x52/0xe0 perf_swevent_overflow+0x91/0xb0 perf_tp_event+0x11a/0x350 ? find_held_lock+0x2d/0x90 ? __lock_acquire+0x2ce/0x1350 ? __lock_acquire+0x2ce/0x1350 ? retint_kernel+0x2d/0x2d ? find_held_lock+0x2d/0x90 ? tick_nohz_get_sleep_length+0x83/0xb0 ? perf_trace_cpu+0xbb/0xd0 ? perf_trace_buf_alloc+0x5a/0xa0 perf_trace_cpu+0xbb/0xd0 cpuidle_enter_state+0x185/0x340 do_idle+0x1eb/0x260 cpu_startup_entry+0x5f/0x70 start_kernel+0x49b/0x4a6 secondary_startup_64+0xa4/0xb0 This is due to the tracepoints moving to SRCU usage which does not require RCU to be "watching". But perf uses these tracepoints with RCU and expects it to be. Hence, we still need to add in the rcu_irq_enter/exit_irqson() calls for "rcuidle" tracepoints. This is a temporary fix until we have SRCU working in NMI context, and then perf can be converted to use that instead of normal RCU. Link: http://lkml.kernel.org/r/20180904162611.6a120068@gandalf.local.home Cc: x86-ml Cc: Peter Zijlstra Reported-by: Borislav Petkov Tested-by: Borislav Petkov Reviewed-by: "Paul E. McKenney" Fixes: e6753f23d961d ("tracepoint: Make rcuidle tracepoint callers use SRCU") Signed-off-by: Steven Rostedt (VMware) --- include/linux/tracepoint.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 7f2e16e76ac4..041f7e56a289 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -158,8 +158,10 @@ extern void syscall_unregfunc(void); * For rcuidle callers, use srcu since sched-rcu \ * doesn't work from the idle path. \ */ \ - if (rcuidle) \ + if (rcuidle) { \ idx = srcu_read_lock_notrace(&tracepoint_srcu); \ + rcu_irq_enter_irqson(); \ + } \ \ it_func_ptr = rcu_dereference_raw((tp)->funcs); \ \ @@ -171,8 +173,10 @@ extern void syscall_unregfunc(void); } while ((++it_func_ptr)->func); \ } \ \ - if (rcuidle) \ + if (rcuidle) { \ + rcu_irq_exit_irqson(); \ srcu_read_unlock_notrace(&tracepoint_srcu, idx);\ + } \ \ preempt_enable_notrace(); \ } while (0) From 3bbf5d34fd4a0c41246290b70338095ae291851b Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Wed, 5 Sep 2018 15:20:58 +0100 Subject: [PATCH 0656/1762] ASoC: dapm: Move error handling to snd_soc_dapm_new_control_unlocked Currently DAPM has a lot of similar code to handle errors from snd_soc_dapm_new_control_unlocked, and much of this code does not really accurately reflect what the function returns. Firstly, most places will check for a return value of -EPROBE_DEFER and silence any error messages in that case. The one notable exception here being dapm_kcontrol_data_alloc which does currently print any error messages in the case of snd_soc_dapm_new_control_unlocked returning NULL or an error. Additionally the error prints being silenced in these case are redundant as snd_soc_dapm_new_control_unlocked can only return -EPROBE_DEFER or NULL when failing. Secondly, most places will treat a return value of NULL as an -ENOMEM. This is not correct either since any error except EPROBE_DEFER will cause a return value of NULL from snd_soc_dapm_new_control_unlocked. Centralise this handling and the error messages within snd_soc_dapm_new_control_unlocked and update the callers to simply check IS_ERR and return. Note that this update is slightly simpler in the case of dapm_kcontrol_data_alloc where that is fairly close to the handling that was already in place. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 118 +++++++-------------------------------- sound/soc/soc-topology.c | 11 ---- 2 files changed, 19 insertions(+), 110 deletions(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 0a738cb439be..d13a25ce1275 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -364,10 +364,6 @@ static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, ret = PTR_ERR(data->widget); goto err_data; } - if (!data->widget) { - ret = -ENOMEM; - goto err_data; - } } break; case snd_soc_dapm_demux: @@ -402,10 +398,6 @@ static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, ret = PTR_ERR(data->widget); goto err_data; } - if (!data->widget) { - ret = -ENOMEM; - goto err_data; - } snd_soc_dapm_add_path(widget->dapm, data->widget, widget, NULL, NULL); @@ -3433,23 +3425,8 @@ snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); w = snd_soc_dapm_new_control_unlocked(dapm, widget); - /* Do not nag about probe deferrals */ - if (IS_ERR(w)) { - int ret = PTR_ERR(w); - - if (ret != -EPROBE_DEFER) - dev_err(dapm->dev, - "ASoC: Failed to create DAPM control %s (%d)\n", - widget->name, ret); - goto out_unlock; - } - if (!w) - dev_err(dapm->dev, - "ASoC: Failed to create DAPM control %s\n", - widget->name); - -out_unlock: mutex_unlock(&dapm->card->dapm_mutex); + return w; } EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); @@ -3464,24 +3441,20 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, int ret; if ((w = dapm_cnew_widget(widget)) == NULL) - return NULL; + return ERR_PTR(-ENOMEM); switch (w->id) { case snd_soc_dapm_regulator_supply: w->regulator = devm_regulator_get(dapm->dev, w->name); if (IS_ERR(w->regulator)) { ret = PTR_ERR(w->regulator); - if (ret == -EPROBE_DEFER) - return ERR_PTR(ret); - dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", - w->name, ret); - return NULL; + goto request_failed; } if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { ret = regulator_allow_bypass(w->regulator, true); if (ret != 0) - dev_warn(w->dapm->dev, + dev_warn(dapm->dev, "ASoC: Failed to bypass %s: %d\n", w->name, ret); } @@ -3490,22 +3463,14 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, w->pinctrl = devm_pinctrl_get(dapm->dev); if (IS_ERR(w->pinctrl)) { ret = PTR_ERR(w->pinctrl); - if (ret == -EPROBE_DEFER) - return ERR_PTR(ret); - dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", - w->name, ret); - return NULL; + goto request_failed; } break; case snd_soc_dapm_clock_supply: w->clk = devm_clk_get(dapm->dev, w->name); if (IS_ERR(w->clk)) { ret = PTR_ERR(w->clk); - if (ret == -EPROBE_DEFER) - return ERR_PTR(ret); - dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", - w->name, ret); - return NULL; + goto request_failed; } break; default: @@ -3519,7 +3484,7 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, w->name = kstrdup_const(widget->name, GFP_KERNEL); if (w->name == NULL) { kfree(w); - return NULL; + return ERR_PTR(-ENOMEM); } switch (w->id) { @@ -3596,6 +3561,13 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, /* machine layer sets up unconnected pins and insertions */ w->connected = 1; return w; + +request_failed: + if (ret != -EPROBE_DEFER) + dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", + w->name, ret); + + return ERR_PTR(ret); } /** @@ -3621,19 +3593,6 @@ int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, w = snd_soc_dapm_new_control_unlocked(dapm, widget); if (IS_ERR(w)) { ret = PTR_ERR(w); - /* Do not nag about probe deferrals */ - if (ret == -EPROBE_DEFER) - break; - dev_err(dapm->dev, - "ASoC: Failed to create DAPM control %s (%d)\n", - widget->name, ret); - break; - } - if (!w) { - dev_err(dapm->dev, - "ASoC: Failed to create DAPM control %s\n", - widget->name); - ret = -ENOMEM; break; } widget++; @@ -3944,21 +3903,8 @@ int snd_soc_dapm_new_pcm(struct snd_soc_card *card, dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template); - if (IS_ERR(w)) { - ret = PTR_ERR(w); - /* Do not nag about probe deferrals */ - if (ret != -EPROBE_DEFER) - dev_err(card->dev, - "ASoC: Failed to create %s widget (%d)\n", - link_name, ret); + if (IS_ERR(w)) goto outfree_kcontrol_news; - } - if (!w) { - dev_err(card->dev, "ASoC: Failed to create %s widget\n", - link_name); - ret = -ENOMEM; - goto outfree_kcontrol_news; - } w->params = params; w->num_params = num_params; @@ -3999,21 +3945,8 @@ int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, template.name); w = snd_soc_dapm_new_control_unlocked(dapm, &template); - if (IS_ERR(w)) { - int ret = PTR_ERR(w); - - /* Do not nag about probe deferrals */ - if (ret != -EPROBE_DEFER) - dev_err(dapm->dev, - "ASoC: Failed to create %s widget (%d)\n", - dai->driver->playback.stream_name, ret); - return ret; - } - if (!w) { - dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", - dai->driver->playback.stream_name); - return -ENOMEM; - } + if (IS_ERR(w)) + return PTR_ERR(w); w->priv = dai; dai->playback_widget = w; @@ -4028,21 +3961,8 @@ int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, template.name); w = snd_soc_dapm_new_control_unlocked(dapm, &template); - if (IS_ERR(w)) { - int ret = PTR_ERR(w); - - /* Do not nag about probe deferrals */ - if (ret != -EPROBE_DEFER) - dev_err(dapm->dev, - "ASoC: Failed to create %s widget (%d)\n", - dai->driver->playback.stream_name, ret); - return ret; - } - if (!w) { - dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", - dai->driver->capture.stream_name); - return -ENOMEM; - } + if (IS_ERR(w)) + return PTR_ERR(w); w->priv = dai; dai->capture_widget = w; diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c index 66e77e020745..17f81b9a5754 100644 --- a/sound/soc/soc-topology.c +++ b/sound/soc/soc-topology.c @@ -1565,17 +1565,6 @@ widget: widget = snd_soc_dapm_new_control_unlocked(dapm, &template); if (IS_ERR(widget)) { ret = PTR_ERR(widget); - /* Do not nag about probe deferrals */ - if (ret != -EPROBE_DEFER) - dev_err(tplg->dev, - "ASoC: failed to create widget %s controls (%d)\n", - w->name, ret); - goto hdr_err; - } - if (widget == NULL) { - dev_err(tplg->dev, "ASoC: failed to create widget %s controls\n", - w->name); - ret = -ENOMEM; goto hdr_err; } From 94e630a35d3383b42f12a873a5404bdf61e38e42 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Wed, 5 Sep 2018 15:20:59 +0100 Subject: [PATCH 0657/1762] ASoC: dapm: Cosmetic tidy up of snd_soc_dapm_new_control Move the function snd_soc_dapm_new_control to be next to snd_soc_dapm_new_controls and add some kernel doc for it. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 37 +++++++++++++++++++++++-------------- 1 file changed, 23 insertions(+), 14 deletions(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index d13a25ce1275..c111e69b9a09 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -3417,20 +3417,6 @@ int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, } EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); -struct snd_soc_dapm_widget * -snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, - const struct snd_soc_dapm_widget *widget) -{ - struct snd_soc_dapm_widget *w; - - mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); - w = snd_soc_dapm_new_control_unlocked(dapm, widget); - mutex_unlock(&dapm->card->dapm_mutex); - - return w; -} -EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); - struct snd_soc_dapm_widget * snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, const struct snd_soc_dapm_widget *widget) @@ -3570,6 +3556,29 @@ request_failed: return ERR_PTR(ret); } +/** + * snd_soc_dapm_new_control - create new dapm control + * @dapm: DAPM context + * @widget: widget template + * + * Creates new DAPM control based upon a template. + * + * Returns a widget pointer on success or an error pointer on failure + */ +struct snd_soc_dapm_widget * +snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, + const struct snd_soc_dapm_widget *widget) +{ + struct snd_soc_dapm_widget *w; + + mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + w = snd_soc_dapm_new_control_unlocked(dapm, widget); + mutex_unlock(&dapm->card->dapm_mutex); + + return w; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); + /** * snd_soc_dapm_new_controls - create new dapm controls * @dapm: DAPM context From 778ff5bb8689eb4fd05a72a409e32a3a34e23faf Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Wed, 5 Sep 2018 15:21:00 +0100 Subject: [PATCH 0658/1762] ASoC: dapm: Move connection of CODEC to CODEC DAIs Currently, snd_soc_dapm_connect_dai_link_widgets connects up the routes representing normal DAIs, however CODEC to CODEC links are hooked up through separate infrastructure in soc_link_dai_widgets. Improve the consistency of the code by using snd_soc_dapm_connect_dai_link for both types of DAIs. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- include/sound/soc-dapm.h | 6 --- sound/soc/soc-core.c | 47 ----------------- sound/soc/soc-dapm.c | 107 +++++++++++++++++++++++++-------------- 3 files changed, 68 insertions(+), 92 deletions(-) diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index fdaaafdc7a00..cb177fa21ce7 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -406,12 +406,6 @@ int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, struct snd_soc_dai *dai); int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card); void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card); -int snd_soc_dapm_new_pcm(struct snd_soc_card *card, - struct snd_soc_pcm_runtime *rtd, - const struct snd_soc_pcm_stream *params, - unsigned int num_params, - struct snd_soc_dapm_widget *source, - struct snd_soc_dapm_widget *sink); /* dapm path setup */ int snd_soc_dapm_new_widgets(struct snd_soc_card *card); diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 390da15c4a8b..4e9367aacc0c 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1463,48 +1463,6 @@ static int soc_link_dai_pcm_new(struct snd_soc_dai **dais, int num_dais, return 0; } -static int soc_link_dai_widgets(struct snd_soc_card *card, - struct snd_soc_dai_link *dai_link, - struct snd_soc_pcm_runtime *rtd) -{ - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_dai *codec_dai = rtd->codec_dai; - struct snd_soc_dapm_widget *sink, *source; - int ret; - - if (rtd->num_codecs > 1) - dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); - - /* link the DAI widgets */ - sink = codec_dai->playback_widget; - source = cpu_dai->capture_widget; - if (sink && source) { - ret = snd_soc_dapm_new_pcm(card, rtd, dai_link->params, - dai_link->num_params, - source, sink); - if (ret != 0) { - dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", - sink->name, source->name, ret); - return ret; - } - } - - sink = cpu_dai->playback_widget; - source = codec_dai->capture_widget; - if (sink && source) { - ret = snd_soc_dapm_new_pcm(card, rtd, dai_link->params, - dai_link->num_params, - source, sink); - if (ret != 0) { - dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", - sink->name, source->name, ret); - return ret; - } - } - - return 0; -} - static int soc_probe_link_dais(struct snd_soc_card *card, struct snd_soc_pcm_runtime *rtd, int order) { @@ -1606,11 +1564,6 @@ static int soc_probe_link_dais(struct snd_soc_card *card, } else { INIT_DELAYED_WORK(&rtd->delayed_work, codec2codec_close_delayed_work); - - /* link the DAI widgets */ - ret = soc_link_dai_widgets(card, dai_link, rtd); - if (ret) - return ret; } } diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index c111e69b9a09..bbfcb7fc05cc 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -3860,12 +3860,10 @@ outfree_w_param: return NULL; } -int snd_soc_dapm_new_pcm(struct snd_soc_card *card, - struct snd_soc_pcm_runtime *rtd, - const struct snd_soc_pcm_stream *params, - unsigned int num_params, - struct snd_soc_dapm_widget *source, - struct snd_soc_dapm_widget *sink) +static struct snd_soc_dapm_widget * +snd_soc_dapm_new_dai(struct snd_soc_card *card, struct snd_soc_pcm_runtime *rtd, + struct snd_soc_dapm_widget *source, + struct snd_soc_dapm_widget *sink) { struct snd_soc_dapm_widget template; struct snd_soc_dapm_widget *w; @@ -3877,7 +3875,7 @@ int snd_soc_dapm_new_pcm(struct snd_soc_card *card, link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", source->name, sink->name); if (!link_name) - return -ENOMEM; + return ERR_PTR(-ENOMEM); memset(&template, 0, sizeof(template)); template.reg = SND_SOC_NOPM; @@ -3889,9 +3887,10 @@ int snd_soc_dapm_new_pcm(struct snd_soc_card *card, template.kcontrol_news = NULL; /* allocate memory for control, only in case of multiple configs */ - if (num_params > 1) { - w_param_text = devm_kcalloc(card->dev, num_params, - sizeof(char *), GFP_KERNEL); + if (rtd->dai_link->num_params > 1) { + w_param_text = devm_kcalloc(card->dev, + rtd->dai_link->num_params, + sizeof(char *), GFP_KERNEL); if (!w_param_text) { ret = -ENOMEM; goto param_fail; @@ -3900,7 +3899,9 @@ int snd_soc_dapm_new_pcm(struct snd_soc_card *card, template.num_kcontrols = 1; template.kcontrol_news = snd_soc_dapm_alloc_kcontrol(card, - link_name, params, num_params, + link_name, + rtd->dai_link->params, + rtd->dai_link->num_params, w_param_text, &private_value); if (!template.kcontrol_news) { ret = -ENOMEM; @@ -3915,23 +3916,19 @@ int snd_soc_dapm_new_pcm(struct snd_soc_card *card, if (IS_ERR(w)) goto outfree_kcontrol_news; - w->params = params; - w->num_params = num_params; + w->params = rtd->dai_link->params; + w->num_params = rtd->dai_link->num_params; w->priv = rtd; - ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); - if (ret) - goto outfree_w; - return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); + return w; -outfree_w: - devm_kfree(card->dev, w); outfree_kcontrol_news: devm_kfree(card->dev, (void *)template.kcontrol_news); - snd_soc_dapm_free_kcontrol(card, &private_value, num_params, w_param_text); + snd_soc_dapm_free_kcontrol(card, &private_value, + rtd->dai_link->num_params, w_param_text); param_fail: devm_kfree(card->dev, link_name); - return ret; + return ERR_PTR(ret); } int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, @@ -4041,33 +4038,65 @@ static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct snd_soc_dai *codec_dai; - struct snd_soc_dapm_widget *sink, *source; + struct snd_soc_dapm_widget *playback = NULL, *capture = NULL; + struct snd_soc_dapm_widget *codec, *playback_cpu, *capture_cpu; int i; + if (rtd->dai_link->params) { + if (rtd->num_codecs > 1) + dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); + + playback_cpu = cpu_dai->capture_widget; + capture_cpu = cpu_dai->playback_widget; + } else { + playback = cpu_dai->playback_widget; + capture = cpu_dai->capture_widget; + playback_cpu = playback; + capture_cpu = capture; + } + for_each_rtd_codec_dai(rtd, i, codec_dai) { /* connect BE DAI playback if widgets are valid */ - if (codec_dai->playback_widget && cpu_dai->playback_widget) { - source = cpu_dai->playback_widget; - sink = codec_dai->playback_widget; - dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", - cpu_dai->component->name, source->name, - codec_dai->component->name, sink->name); + codec = codec_dai->playback_widget; - snd_soc_dapm_add_path(&card->dapm, source, sink, - NULL, NULL); + if (playback_cpu && codec) { + if (!playback) { + playback = snd_soc_dapm_new_dai(card, rtd, + playback_cpu, + codec); + + snd_soc_dapm_add_path(&card->dapm, playback_cpu, + playback, NULL, NULL); + } + + dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", + cpu_dai->component->name, playback_cpu->name, + codec_dai->component->name, codec->name); + + snd_soc_dapm_add_path(&card->dapm, playback, codec, + NULL, NULL); } /* connect BE DAI capture if widgets are valid */ - if (codec_dai->capture_widget && cpu_dai->capture_widget) { - source = codec_dai->capture_widget; - sink = cpu_dai->capture_widget; - dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", - codec_dai->component->name, source->name, - cpu_dai->component->name, sink->name); + codec = codec_dai->capture_widget; - snd_soc_dapm_add_path(&card->dapm, source, sink, - NULL, NULL); + if (codec && capture_cpu) { + if (!capture) { + capture = snd_soc_dapm_new_dai(card, rtd, + codec, + capture_cpu); + + snd_soc_dapm_add_path(&card->dapm, capture, + capture_cpu, NULL, NULL); + } + + dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", + codec_dai->component->name, codec->name, + cpu_dai->component->name, capture_cpu->name); + + snd_soc_dapm_add_path(&card->dapm, codec, capture, + NULL, NULL); } } } @@ -4122,7 +4151,7 @@ void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) * dynamic FE links have no fixed DAI mapping. * CODEC<->CODEC links have no direct connection. */ - if (rtd->dai_link->dynamic || rtd->dai_link->params) + if (rtd->dai_link->dynamic) continue; dapm_connect_dai_link_widgets(card, rtd); From 4a75aae17b2a802a7267206414050408392c374c Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Wed, 5 Sep 2018 15:21:01 +0100 Subject: [PATCH 0659/1762] ASoC: dapm: Add support for multi-CODEC CODEC to CODEC links Currently multi-CODEC is not supported on CODEC to CODEC links. There are common applications where this would be useful, such as connecting two mono amplifiers to an audio CODEC. Adding support simply requires an update of snd_soc_dai_link_event to loop over the attached CODEC DAIs. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 123 ++++++++++++++++++++++++------------------- 1 file changed, 70 insertions(+), 53 deletions(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index bbfcb7fc05cc..40f27c95da61 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -3614,7 +3614,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { - struct snd_soc_dapm_path *source_p, *sink_p; + struct snd_soc_dapm_path *path; struct snd_soc_dai *source, *sink; struct snd_soc_pcm_runtime *rtd = w->priv; const struct snd_soc_pcm_stream *config = w->params + w->params_select; @@ -3629,17 +3629,6 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, list_empty(&w->edges[SND_SOC_DAPM_DIR_IN]))) return -EINVAL; - /* We only support a single source and sink, pick the first */ - source_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_OUT], - struct snd_soc_dapm_path, - list_node[SND_SOC_DAPM_DIR_OUT]); - sink_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_IN], - struct snd_soc_dapm_path, - list_node[SND_SOC_DAPM_DIR_IN]); - - source = source_p->source->priv; - sink = sink_p->sink->priv; - /* Be a little careful as we don't want to overflow the mask array */ if (config->formats) { fmt = ffs(config->formats) - 1; @@ -3681,59 +3670,90 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, switch (event) { case SND_SOC_DAPM_PRE_PMU: substream.stream = SNDRV_PCM_STREAM_CAPTURE; - if (source->driver->ops->startup) { - ret = source->driver->ops->startup(&substream, source); - if (ret < 0) { - dev_err(source->dev, - "ASoC: startup() failed: %d\n", ret); - goto out; + snd_soc_dapm_widget_for_each_source_path(w, path) { + source = path->source->priv; + + if (source->driver->ops->startup) { + ret = source->driver->ops->startup(&substream, + source); + if (ret < 0) { + dev_err(source->dev, + "ASoC: startup() failed: %d\n", + ret); + goto out; + } + source->active++; } - source->active++; + ret = soc_dai_hw_params(&substream, params, source); + if (ret < 0) + goto out; } - ret = soc_dai_hw_params(&substream, params, source); - if (ret < 0) - goto out; substream.stream = SNDRV_PCM_STREAM_PLAYBACK; - if (sink->driver->ops->startup) { - ret = sink->driver->ops->startup(&substream, sink); - if (ret < 0) { - dev_err(sink->dev, - "ASoC: startup() failed: %d\n", ret); - goto out; + snd_soc_dapm_widget_for_each_sink_path(w, path) { + sink = path->sink->priv; + + if (sink->driver->ops->startup) { + ret = sink->driver->ops->startup(&substream, + sink); + if (ret < 0) { + dev_err(sink->dev, + "ASoC: startup() failed: %d\n", + ret); + goto out; + } + sink->active++; } - sink->active++; + ret = soc_dai_hw_params(&substream, params, sink); + if (ret < 0) + goto out; } - ret = soc_dai_hw_params(&substream, params, sink); - if (ret < 0) - goto out; break; case SND_SOC_DAPM_POST_PMU: - ret = snd_soc_dai_digital_mute(sink, 0, - SNDRV_PCM_STREAM_PLAYBACK); - if (ret != 0 && ret != -ENOTSUPP) - dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); - ret = 0; + snd_soc_dapm_widget_for_each_sink_path(w, path) { + sink = path->sink->priv; + + ret = snd_soc_dai_digital_mute(sink, 0, + SNDRV_PCM_STREAM_PLAYBACK); + if (ret != 0 && ret != -ENOTSUPP) + dev_warn(sink->dev, + "ASoC: Failed to unmute: %d\n", ret); + ret = 0; + } break; case SND_SOC_DAPM_PRE_PMD: - ret = snd_soc_dai_digital_mute(sink, 1, - SNDRV_PCM_STREAM_PLAYBACK); - if (ret != 0 && ret != -ENOTSUPP) - dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); - ret = 0; + snd_soc_dapm_widget_for_each_sink_path(w, path) { + sink = path->sink->priv; - source->active--; - if (source->driver->ops->shutdown) { - substream.stream = SNDRV_PCM_STREAM_CAPTURE; - source->driver->ops->shutdown(&substream, source); + ret = snd_soc_dai_digital_mute(sink, 1, + SNDRV_PCM_STREAM_PLAYBACK); + if (ret != 0 && ret != -ENOTSUPP) + dev_warn(sink->dev, + "ASoC: Failed to mute: %d\n", ret); + ret = 0; } - sink->active--; - if (sink->driver->ops->shutdown) { - substream.stream = SNDRV_PCM_STREAM_PLAYBACK; - sink->driver->ops->shutdown(&substream, sink); + snd_soc_dapm_widget_for_each_source_path(w, path) { + source = path->source->priv; + + source->active--; + if (source->driver->ops->shutdown) { + substream.stream = SNDRV_PCM_STREAM_CAPTURE; + source->driver->ops->shutdown(&substream, + source); + } + } + + snd_soc_dapm_widget_for_each_sink_path(w, path) { + sink = path->sink->priv; + + sink->active--; + if (sink->driver->ops->shutdown) { + substream.stream = SNDRV_PCM_STREAM_PLAYBACK; + sink->driver->ops->shutdown(&substream, sink); + } } break; @@ -4043,9 +4063,6 @@ static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, int i; if (rtd->dai_link->params) { - if (rtd->num_codecs > 1) - dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); - playback_cpu = cpu_dai->capture_widget; capture_cpu = cpu_dai->playback_widget; } else { From 243bcfafcd9a23a20867fd488dc3a35264918d87 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Wed, 5 Sep 2018 15:21:02 +0100 Subject: [PATCH 0660/1762] ASoC: dapm: Move CODEC to CODEC params from the widget to the runtime Larger CODECs may contain many several hundred widgets and which set of parameters is selected only needs to be recorded on a per DAI basis. As such move the selected CODEC to CODEC link params to be stored in the runtime rather than the DAPM widget, to save some memory. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- include/sound/soc-dapm.h | 3 --- include/sound/soc.h | 2 ++ sound/soc/soc-dapm.c | 19 +++++++++++-------- 3 files changed, 13 insertions(+), 11 deletions(-) diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index cb177fa21ce7..bd8163f151cb 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -584,9 +584,6 @@ struct snd_soc_dapm_widget { void *priv; /* widget specific data */ struct regulator *regulator; /* attached regulator */ struct pinctrl *pinctrl; /* attached pinctrl */ - const struct snd_soc_pcm_stream *params; /* params for dai links */ - unsigned int num_params; /* number of params for dai links */ - unsigned int params_select; /* currently selected param for dai link */ /* dapm control */ int reg; /* negative reg = no direct dapm */ diff --git a/include/sound/soc.h b/include/sound/soc.h index 6b68b31e3140..821bf99992b8 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1130,6 +1130,8 @@ struct snd_soc_pcm_runtime { enum snd_soc_pcm_subclass pcm_subclass; struct snd_pcm_ops ops; + unsigned int params_select; /* currently selected param for dai link */ + /* Dynamic PCM BE runtime data */ struct snd_soc_dpcm_runtime dpcm[2]; int fe_compr; diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 40f27c95da61..9f4edcd19e02 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -1018,9 +1018,10 @@ static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) struct snd_kcontrol *kcontrol; struct snd_soc_dapm_context *dapm = w->dapm; struct snd_card *card = dapm->card->snd_card; + struct snd_soc_pcm_runtime *rtd = w->priv; /* create control for links with > 1 config */ - if (w->num_params <= 1) + if (rtd->dai_link->num_params <= 1) return 0; /* add kcontrol */ @@ -3617,13 +3618,15 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, struct snd_soc_dapm_path *path; struct snd_soc_dai *source, *sink; struct snd_soc_pcm_runtime *rtd = w->priv; - const struct snd_soc_pcm_stream *config = w->params + w->params_select; + const struct snd_soc_pcm_stream *config; struct snd_pcm_substream substream; struct snd_pcm_hw_params *params = NULL; struct snd_pcm_runtime *runtime = NULL; unsigned int fmt; int ret; + config = rtd->dai_link->params + rtd->params_select; + if (WARN_ON(!config) || WARN_ON(list_empty(&w->edges[SND_SOC_DAPM_DIR_OUT]) || list_empty(&w->edges[SND_SOC_DAPM_DIR_IN]))) @@ -3772,8 +3775,9 @@ static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); + struct snd_soc_pcm_runtime *rtd = w->priv; - ucontrol->value.enumerated.item[0] = w->params_select; + ucontrol->value.enumerated.item[0] = rtd->params_select; return 0; } @@ -3782,18 +3786,19 @@ static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); + struct snd_soc_pcm_runtime *rtd = w->priv; /* Can't change the config when widget is already powered */ if (w->power) return -EBUSY; - if (ucontrol->value.enumerated.item[0] == w->params_select) + if (ucontrol->value.enumerated.item[0] == rtd->params_select) return 0; - if (ucontrol->value.enumerated.item[0] >= w->num_params) + if (ucontrol->value.enumerated.item[0] >= rtd->dai_link->num_params) return -EINVAL; - w->params_select = ucontrol->value.enumerated.item[0]; + rtd->params_select = ucontrol->value.enumerated.item[0]; return 0; } @@ -3936,8 +3941,6 @@ snd_soc_dapm_new_dai(struct snd_soc_card *card, struct snd_soc_pcm_runtime *rtd, if (IS_ERR(w)) goto outfree_kcontrol_news; - w->params = rtd->dai_link->params; - w->num_params = rtd->dai_link->num_params; w->priv = rtd; return w; From 53cf59d6c0ad3edc4f4449098706a8f8986258b6 Mon Sep 17 00:00:00 2001 From: Lei Yang Date: Wed, 5 Sep 2018 11:14:49 +0800 Subject: [PATCH 0661/1762] selftests/efivarfs: add required kernel configs add config file Signed-off-by: Lei Yang Signed-off-by: Shuah Khan (Samsung OSG) --- tools/testing/selftests/efivarfs/config | 1 + 1 file changed, 1 insertion(+) create mode 100644 tools/testing/selftests/efivarfs/config diff --git a/tools/testing/selftests/efivarfs/config b/tools/testing/selftests/efivarfs/config new file mode 100644 index 000000000000..4e151f1005b2 --- /dev/null +++ b/tools/testing/selftests/efivarfs/config @@ -0,0 +1 @@ +CONFIG_EFIVAR_FS=y From 4d85af102a66ee6aeefa596f273169e77fb2b48e Mon Sep 17 00:00:00 2001 From: Lei Yang Date: Wed, 5 Sep 2018 17:57:15 +0800 Subject: [PATCH 0662/1762] selftests: memory-hotplug: add required configs add CONFIG_MEMORY_HOTREMOVE=y in config without this config, /sys/devices/system/memory/memory*/removable always return 0, I endup getting an early skip during test Signed-off-by: Lei Yang Signed-off-by: Shuah Khan (Samsung OSG) --- tools/testing/selftests/memory-hotplug/config | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/memory-hotplug/config b/tools/testing/selftests/memory-hotplug/config index 2fde30191a47..a7e8cd5bb265 100644 --- a/tools/testing/selftests/memory-hotplug/config +++ b/tools/testing/selftests/memory-hotplug/config @@ -2,3 +2,4 @@ CONFIG_MEMORY_HOTPLUG=y CONFIG_MEMORY_HOTPLUG_SPARSE=y CONFIG_NOTIFIER_ERROR_INJECTION=y CONFIG_MEMORY_NOTIFIER_ERROR_INJECT=m +CONFIG_MEMORY_HOTREMOVE=y From d07f05fb86439c41dd6967c94be3ba3837b21567 Mon Sep 17 00:00:00 2001 From: Peter Robinson Date: Sat, 21 Jul 2018 00:02:12 +0100 Subject: [PATCH 0663/1762] hwmon: rpi: add module alias to raspberrypi-hwmon The raspberrypi-hwmon driver doesn't automatically load, although it does work when loaded, by adding the alias it auto loads as expected when built as a module. Tested on RPi2/RPi3 on 32 bit kernel and RPi3B+ on aarch64 with Fedora 28 and a patched 4.18 RC kernel. Fixes: 3c493c885cf ("hwmon: Add support for RPi voltage sensor") Signed-off-by: Peter Robinson CC: Stefan Wahren CC: Eric Anholt Acked-by: Guenter Roeck Tested-by: Stefan Wahren Reviewed-by: Eric Anholt Signed-off-by: Florian Fainelli --- drivers/hwmon/raspberrypi-hwmon.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hwmon/raspberrypi-hwmon.c b/drivers/hwmon/raspberrypi-hwmon.c index fb4e4a6bb1f6..be5ba4690895 100644 --- a/drivers/hwmon/raspberrypi-hwmon.c +++ b/drivers/hwmon/raspberrypi-hwmon.c @@ -164,3 +164,4 @@ module_platform_driver(rpi_hwmon_driver); MODULE_AUTHOR("Stefan Wahren "); MODULE_DESCRIPTION("Raspberry Pi voltage sensor driver"); MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:raspberrypi-hwmon"); From 8407879c4e0d7731f6e7e905893cecf61a7762c7 Mon Sep 17 00:00:00 2001 From: Sagi Grimberg Date: Mon, 3 Sep 2018 03:47:07 -0700 Subject: [PATCH 0664/1762] nvmet-rdma: fix possible bogus dereference under heavy load Currently we always repost the recv buffer before we send a response capsule back to the host. Since ordering is not guaranteed for send and recv completions, it is posible that we will receive a new request from the host before we got a send completion for the response capsule. Today, we pre-allocate 2x rsps the length of the queue, but in reality, under heavy load there is nothing that is really preventing the gap to expand until we exhaust all our rsps. To fix this, if we don't have any pre-allocated rsps left, we dynamically allocate a rsp and make sure to free it when we are done. If under memory pressure we fail to allocate a rsp, we silently drop the command and wait for the host to retry. Reported-by: Steve Wise Tested-by: Steve Wise Signed-off-by: Sagi Grimberg [hch: dropped a superflous assignment] Signed-off-by: Christoph Hellwig --- drivers/nvme/target/rdma.c | 27 +++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-) diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c index 3533e918ea37..bfc4da660bb4 100644 --- a/drivers/nvme/target/rdma.c +++ b/drivers/nvme/target/rdma.c @@ -66,6 +66,7 @@ struct nvmet_rdma_rsp { struct nvmet_req req; + bool allocated; u8 n_rdma; u32 flags; u32 invalidate_rkey; @@ -174,11 +175,19 @@ nvmet_rdma_get_rsp(struct nvmet_rdma_queue *queue) unsigned long flags; spin_lock_irqsave(&queue->rsps_lock, flags); - rsp = list_first_entry(&queue->free_rsps, + rsp = list_first_entry_or_null(&queue->free_rsps, struct nvmet_rdma_rsp, free_list); - list_del(&rsp->free_list); + if (likely(rsp)) + list_del(&rsp->free_list); spin_unlock_irqrestore(&queue->rsps_lock, flags); + if (unlikely(!rsp)) { + rsp = kmalloc(sizeof(*rsp), GFP_KERNEL); + if (unlikely(!rsp)) + return NULL; + rsp->allocated = true; + } + return rsp; } @@ -187,6 +196,11 @@ nvmet_rdma_put_rsp(struct nvmet_rdma_rsp *rsp) { unsigned long flags; + if (rsp->allocated) { + kfree(rsp); + return; + } + spin_lock_irqsave(&rsp->queue->rsps_lock, flags); list_add_tail(&rsp->free_list, &rsp->queue->free_rsps); spin_unlock_irqrestore(&rsp->queue->rsps_lock, flags); @@ -776,6 +790,15 @@ static void nvmet_rdma_recv_done(struct ib_cq *cq, struct ib_wc *wc) cmd->queue = queue; rsp = nvmet_rdma_get_rsp(queue); + if (unlikely(!rsp)) { + /* + * we get here only under memory pressure, + * silently drop and have the host retry + * as we can't even fail it. + */ + nvmet_rdma_post_recv(queue->dev, cmd); + return; + } rsp->queue = queue; rsp->cmd = cmd; rsp->flags = 0; From 816e846c2eb9129a3e0afa5f920c8bbc71efecaa Mon Sep 17 00:00:00 2001 From: Aaron Knister Date: Fri, 24 Aug 2018 08:42:46 -0400 Subject: [PATCH 0665/1762] IB/ipoib: Avoid a race condition between start_xmit and cm_rep_handler Inside of start_xmit() the call to check if the connection is up and the queueing of the packets for later transmission is not atomic which leaves a window where cm_rep_handler can run, set the connection up, dequeue pending packets and leave the subsequently queued packets by start_xmit() sitting on neigh->queue until they're dropped when the connection is torn down. This only applies to connected mode. These dropped packets can really upset TCP, for example, and cause multi-minute delays in transmission for open connections. Here's the code in start_xmit where we check to see if the connection is up: if (ipoib_cm_get(neigh)) { if (ipoib_cm_up(neigh)) { ipoib_cm_send(dev, skb, ipoib_cm_get(neigh)); goto unref; } } The race occurs if cm_rep_handler execution occurs after the above connection check (specifically if it gets to the point where it acquires priv->lock to dequeue pending skb's) but before the below code snippet in start_xmit where packets are queued. if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) { push_pseudo_header(skb, phdr->hwaddr); spin_lock_irqsave(&priv->lock, flags); __skb_queue_tail(&neigh->queue, skb); spin_unlock_irqrestore(&priv->lock, flags); } else { ++dev->stats.tx_dropped; dev_kfree_skb_any(skb); } The patch acquires the netif tx lock in cm_rep_handler for the section where it sets the connection up and dequeues and retransmits deferred skb's. Fixes: 839fcaba355a ("IPoIB: Connected mode experimental support") Cc: stable@vger.kernel.org Signed-off-by: Aaron Knister Tested-by: Ira Weiny Reviewed-by: Ira Weiny Signed-off-by: Jason Gunthorpe --- drivers/infiniband/ulp/ipoib/ipoib_cm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index ea01b8dd2be6..3d5424f335cb 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -1027,12 +1027,14 @@ static int ipoib_cm_rep_handler(struct ib_cm_id *cm_id, skb_queue_head_init(&skqueue); + netif_tx_lock_bh(p->dev); spin_lock_irq(&priv->lock); set_bit(IPOIB_FLAG_OPER_UP, &p->flags); if (p->neigh) while ((skb = __skb_dequeue(&p->neigh->queue))) __skb_queue_tail(&skqueue, skb); spin_unlock_irq(&priv->lock); + netif_tx_unlock_bh(p->dev); while ((skb = __skb_dequeue(&skqueue))) { skb->dev = p->dev; From e3f3d7ab00cd459d0f7a839758a4542f4d4b8ac8 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 5 Sep 2018 10:46:27 +0300 Subject: [PATCH 0666/1762] hwmon: (nct6775) Set weight source to zero correctly This is dead code because j can never be 1 at this point. We had intended to just test if the bit was clear. Fixes: bbd8decd4123 ("hwmon: (nct6775) Add support for weighted fan control") Signed-off-by: Dan Carpenter Signed-off-by: Guenter Roeck --- drivers/hwmon/nct6775.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index 944f5b63aecd..139781ae830b 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -1558,7 +1558,7 @@ static void nct6775_update_pwm(struct device *dev) reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[i]); data->pwm_weight_temp_sel[i] = reg & 0x1f; /* If weight is disabled, report weight source as 0 */ - if (j == 1 && !(reg & 0x80)) + if (!(reg & 0x80)) data->pwm_weight_temp_sel[i] = 0; /* Weight temp data */ From f40f299bbe806a2e2c8b0d7cdda822fa3bdd171b Mon Sep 17 00:00:00 2001 From: Somnath Kotur Date: Wed, 5 Sep 2018 13:20:34 +0530 Subject: [PATCH 0667/1762] bnxt_re: Fix couple of memory leaks that could lead to IOMMU call traces 1. DMA-able memory allocated for Shadow QP was not being freed. 2. bnxt_qplib_alloc_qp_hdr_buf() had a bug wherein the SQ pointer was erroneously pointing to the RQ. But since the corresponding free_qp_hdr_buf() was correct, memory being free was less than what was allocated. Fixes: 1ac5a4047975 ("RDMA/bnxt_re: Add bnxt_re RoCE driver") Signed-off-by: Somnath Kotur Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/bnxt_re/ib_verbs.c | 2 ++ drivers/infiniband/hw/bnxt_re/qplib_fp.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c index bbfb86eb2d24..bc2b9e038439 100644 --- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c +++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c @@ -833,6 +833,8 @@ int bnxt_re_destroy_qp(struct ib_qp *ib_qp) "Failed to destroy Shadow QP"); return rc; } + bnxt_qplib_free_qp_res(&rdev->qplib_res, + &rdev->qp1_sqp->qplib_qp); mutex_lock(&rdev->qp_lock); list_del(&rdev->qp1_sqp->list); atomic_dec(&rdev->qp_count); diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c index e426b990c1dd..6ad0d46ab879 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c @@ -196,7 +196,7 @@ static int bnxt_qplib_alloc_qp_hdr_buf(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp) { struct bnxt_qplib_q *rq = &qp->rq; - struct bnxt_qplib_q *sq = &qp->rq; + struct bnxt_qplib_q *sq = &qp->sq; int rc = 0; if (qp->sq_hdr_buf_size && sq->hwq.max_elements) { From 8b2ded1c94c06f841f8c1612bcfa33c85012a36b Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Wed, 5 Sep 2018 16:14:36 -0600 Subject: [PATCH 0668/1762] block: don't warn when doing fsync on read-only devices It is possible to call fsync on a read-only handle (for example, fsck.ext2 does it when doing read-only check), and this call results in kernel warning. The patch b089cfd95d32 ("block: don't warn for flush on read-only device") attempted to disable the warning, but it is buggy and it doesn't (op_is_flush tests flags, but bio_op strips off the flags). Signed-off-by: Mikulas Patocka Fixes: 721c7fc701c7 ("block: fail op_is_write() requests to read-only partitions") Cc: stable@vger.kernel.org # 4.18 Signed-off-by: Jens Axboe --- block/blk-core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index dee56c282efb..4dbc93f43b38 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -2163,9 +2163,12 @@ static inline bool bio_check_ro(struct bio *bio, struct hd_struct *part) { const int op = bio_op(bio); - if (part->policy && (op_is_write(op) && !op_is_flush(op))) { + if (part->policy && op_is_write(op)) { char b[BDEVNAME_SIZE]; + if (op_is_flush(bio->bi_opf) && !bio_sectors(bio)) + return false; + WARN_ONCE(1, "generic_make_request: Trying to write " "to read-only block-device %s (partno %d)\n", From 08e74be103051861eb2c1ee52a2dcf119cde264f Mon Sep 17 00:00:00 2001 From: Parav Pandit Date: Wed, 5 Sep 2018 09:47:57 +0300 Subject: [PATCH 0669/1762] RDMA/uverbs: Fix error cleanup path of ib_uverbs_add_one() If ib_uverbs_create_uapi() fails, dev_num should be freed from the bitmap. Fixes: 7d96c9b17636 ("IB/uverbs: Have the core code create the uverbs_root_spec") Signed-off-by: Parav Pandit Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/uverbs_main.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index 823beca448e1..6d974e2363df 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -1050,7 +1050,7 @@ static void ib_uverbs_add_one(struct ib_device *device) uverbs_dev->num_comp_vectors = device->num_comp_vectors; if (ib_uverbs_create_uapi(device, uverbs_dev)) - goto err; + goto err_uapi; cdev_init(&uverbs_dev->cdev, NULL); uverbs_dev->cdev.owner = THIS_MODULE; @@ -1077,11 +1077,10 @@ static void ib_uverbs_add_one(struct ib_device *device) err_class: device_destroy(uverbs_class, uverbs_dev->cdev.dev); - err_cdev: cdev_del(&uverbs_dev->cdev); +err_uapi: clear_bit(devnum, dev_map); - err: if (atomic_dec_and_test(&uverbs_dev->refcount)) ib_uverbs_comp_dev(uverbs_dev); From 76d5581c870454be5f1f1a106c57985902e7ea20 Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Sun, 5 Aug 2018 09:19:33 +0300 Subject: [PATCH 0670/1762] net/mlx5: Fix use-after-free in self-healing flow When the mlx5 health mechanism detects a problem while the driver is in the middle of init_one or remove_one, the driver needs to prevent the health mechanism from scheduling future work; if future work is scheduled, there is a problem with use-after-free: the system WQ tries to run the work item (which has been freed) at the scheduled future time. Prevent this by disabling work item scheduling in the health mechanism when the driver is in the middle of init_one() or remove_one(). Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters") Signed-off-by: Jack Morgenstein Reviewed-by: Feras Daoud Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/health.c | 10 +++++++++- drivers/net/ethernet/mellanox/mlx5/core/main.c | 6 +++--- include/linux/mlx5/driver.h | 2 +- 3 files changed, 13 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c index d39b0b7011b2..9f39aeca863f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/health.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c @@ -331,9 +331,17 @@ void mlx5_start_health_poll(struct mlx5_core_dev *dev) add_timer(&health->timer); } -void mlx5_stop_health_poll(struct mlx5_core_dev *dev) +void mlx5_stop_health_poll(struct mlx5_core_dev *dev, bool disable_health) { struct mlx5_core_health *health = &dev->priv.health; + unsigned long flags; + + if (disable_health) { + spin_lock_irqsave(&health->wq_lock, flags); + set_bit(MLX5_DROP_NEW_HEALTH_WORK, &health->flags); + set_bit(MLX5_DROP_NEW_RECOVERY_WORK, &health->flags); + spin_unlock_irqrestore(&health->wq_lock, flags); + } del_timer_sync(&health->timer); } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index cf3e4a659052..739aad0a0b35 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -1286,7 +1286,7 @@ err_cleanup_once: mlx5_cleanup_once(dev); err_stop_poll: - mlx5_stop_health_poll(dev); + mlx5_stop_health_poll(dev, boot); if (mlx5_cmd_teardown_hca(dev)) { dev_err(&dev->pdev->dev, "tear_down_hca failed, skip cleanup\n"); goto out_err; @@ -1346,7 +1346,7 @@ static int mlx5_unload_one(struct mlx5_core_dev *dev, struct mlx5_priv *priv, mlx5_free_irq_vectors(dev); if (cleanup) mlx5_cleanup_once(dev); - mlx5_stop_health_poll(dev); + mlx5_stop_health_poll(dev, cleanup); err = mlx5_cmd_teardown_hca(dev); if (err) { dev_err(&dev->pdev->dev, "tear_down_hca failed, skip cleanup\n"); @@ -1608,7 +1608,7 @@ static int mlx5_try_fast_unload(struct mlx5_core_dev *dev) * with the HCA, so the health polll is no longer needed. */ mlx5_drain_health_wq(dev); - mlx5_stop_health_poll(dev); + mlx5_stop_health_poll(dev, false); ret = mlx5_cmd_force_teardown_hca(dev); if (ret) { diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 7a452716de4b..aa65f58c6610 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -1052,7 +1052,7 @@ int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn); void mlx5_health_cleanup(struct mlx5_core_dev *dev); int mlx5_health_init(struct mlx5_core_dev *dev); void mlx5_start_health_poll(struct mlx5_core_dev *dev); -void mlx5_stop_health_poll(struct mlx5_core_dev *dev); +void mlx5_stop_health_poll(struct mlx5_core_dev *dev, bool disable_health); void mlx5_drain_health_wq(struct mlx5_core_dev *dev); void mlx5_trigger_health_work(struct mlx5_core_dev *dev); void mlx5_drain_health_recovery(struct mlx5_core_dev *dev); From 5df816e7f43f1297c40021ef17ec6e722b45c82f Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Tue, 7 Aug 2018 09:59:03 +0300 Subject: [PATCH 0671/1762] net/mlx5: Fix debugfs cleanup in the device init/remove flow When initializing the device (procedure init_one), the driver calls mlx5_pci_init to perform pci initialization. As part of this initialization, mlx5_pci_init creates a debugfs directory. If this creation fails, init_one aborts, returning failure to the caller (which is the probe method caller). The main reason for such a failure to occur is if the debugfs directory already exists. This can happen if the last time mlx5_pci_close was called, debugfs_remove (silently) failed due to the debugfs directory not being empty. Guarantee that such a debugfs_remove failure will not occur by instead calling debugfs_remove_recursive in procedure mlx5_pci_close. Fixes: 59211bd3b632 ("net/mlx5: Split the load/unload flow into hardware and software flows") Signed-off-by: Jack Morgenstein Reviewed-by: Daniel Jurgens Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index 739aad0a0b35..b5e9f664fc66 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -878,8 +878,10 @@ static int mlx5_pci_init(struct mlx5_core_dev *dev, struct mlx5_priv *priv) priv->numa_node = dev_to_node(&dev->pdev->dev); priv->dbg_root = debugfs_create_dir(dev_name(&pdev->dev), mlx5_debugfs_root); - if (!priv->dbg_root) + if (!priv->dbg_root) { + dev_err(&pdev->dev, "Cannot create debugfs dir, aborting\n"); return -ENOMEM; + } err = mlx5_pci_enable_device(dev); if (err) { @@ -928,7 +930,7 @@ static void mlx5_pci_close(struct mlx5_core_dev *dev, struct mlx5_priv *priv) pci_clear_master(dev->pdev); release_bar(dev->pdev); mlx5_pci_disable_device(dev); - debugfs_remove(priv->dbg_root); + debugfs_remove_recursive(priv->dbg_root); } static int mlx5_init_once(struct mlx5_core_dev *dev, struct mlx5_priv *priv) From 8d71e818506718e8d7032ce824b5c74a17d4f7a5 Mon Sep 17 00:00:00 2001 From: Tariq Toukan Date: Tue, 21 Aug 2018 16:04:41 +0300 Subject: [PATCH 0672/1762] net/mlx5: Use u16 for Work Queue buffer fragment size Minimal stride size is 16. Hence, the number of strides in a fragment (of PAGE_SIZE) is <= PAGE_SIZE / 16 <= 4K. u16 is sufficient to represent this. Fixes: 388ca8be0037 ("IB/mlx5: Implement fragmented completion queue (CQ)") Signed-off-by: Tariq Toukan Reviewed-by: Eran Ben Elisha Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/wq.c | 4 ++-- drivers/net/ethernet/mellanox/mlx5/core/wq.h | 2 +- include/linux/mlx5/driver.h | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/wq.c b/drivers/net/ethernet/mellanox/mlx5/core/wq.c index c8c315eb5128..d838af9539b1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/wq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/wq.c @@ -39,9 +39,9 @@ u32 mlx5_wq_cyc_get_size(struct mlx5_wq_cyc *wq) return (u32)wq->fbc.sz_m1 + 1; } -u32 mlx5_wq_cyc_get_frag_size(struct mlx5_wq_cyc *wq) +u16 mlx5_wq_cyc_get_frag_size(struct mlx5_wq_cyc *wq) { - return (u32)wq->fbc.frag_sz_m1 + 1; + return wq->fbc.frag_sz_m1 + 1; } u32 mlx5_cqwq_get_size(struct mlx5_cqwq *wq) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/wq.h b/drivers/net/ethernet/mellanox/mlx5/core/wq.h index 2bd4c3184eba..3a1a170bb2d7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/wq.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/wq.h @@ -80,7 +80,7 @@ int mlx5_wq_cyc_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param, void *wqc, struct mlx5_wq_cyc *wq, struct mlx5_wq_ctrl *wq_ctrl); u32 mlx5_wq_cyc_get_size(struct mlx5_wq_cyc *wq); -u32 mlx5_wq_cyc_get_frag_size(struct mlx5_wq_cyc *wq); +u16 mlx5_wq_cyc_get_frag_size(struct mlx5_wq_cyc *wq); int mlx5_wq_qp_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param, void *qpc, struct mlx5_wq_qp *wq, diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index aa65f58c6610..3a1258fd8ac3 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -362,7 +362,7 @@ struct mlx5_frag_buf { struct mlx5_frag_buf_ctrl { struct mlx5_frag_buf frag_buf; u32 sz_m1; - u32 frag_sz_m1; + u16 frag_sz_m1; u32 strides_offset; u8 log_sz; u8 log_stride; From a09036221092989b88c55d24d1f12ceb1d7d361f Mon Sep 17 00:00:00 2001 From: Tariq Toukan Date: Tue, 21 Aug 2018 16:07:58 +0300 Subject: [PATCH 0673/1762] net/mlx5: Use u16 for Work Queue buffer strides offset Minimal stride size is 16. Hence, the number of strides in a fragment (of PAGE_SIZE) is <= PAGE_SIZE / 16 <= 4K. u16 is sufficient to represent this. Fixes: d7037ad73daa ("net/mlx5: Fix QP fragmented buffer allocation") Signed-off-by: Tariq Toukan Reviewed-by: Eran Ben Elisha Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/wq.c | 2 +- include/linux/mlx5/driver.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/wq.c b/drivers/net/ethernet/mellanox/mlx5/core/wq.c index d838af9539b1..68e7f8df2a6d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/wq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/wq.c @@ -138,7 +138,7 @@ int mlx5_wq_qp_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param, void *qpc, struct mlx5_wq_qp *wq, struct mlx5_wq_ctrl *wq_ctrl) { - u32 sq_strides_offset; + u16 sq_strides_offset; u32 rq_pg_remainder; int err; diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 3a1258fd8ac3..66d94b4557cf 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -363,7 +363,7 @@ struct mlx5_frag_buf_ctrl { struct mlx5_frag_buf frag_buf; u32 sz_m1; u16 frag_sz_m1; - u32 strides_offset; + u16 strides_offset; u8 log_sz; u8 log_stride; u8 log_frag_strides; @@ -995,7 +995,7 @@ static inline u32 mlx5_base_mkey(const u32 key) } static inline void mlx5_fill_fbc_offset(u8 log_stride, u8 log_sz, - u32 strides_offset, + u16 strides_offset, struct mlx5_frag_buf_ctrl *fbc) { fbc->log_stride = log_stride; From c88a026e01219488e745f4f0267fd76c2bb68421 Mon Sep 17 00:00:00 2001 From: Raed Salem Date: Tue, 21 Aug 2018 15:22:42 +0300 Subject: [PATCH 0674/1762] net/mlx5: E-Switch, Fix memory leak when creating switchdev mode FDB tables The memory allocated for the slow path table flow group input structure was not freed upon successful return, fix that. Fixes: 1967ce6ea5c8 ("net/mlx5: E-Switch, Refactor fast path FDB table creation in switchdev mode") Signed-off-by: Raed Salem Reviewed-by: Or Gerlitz Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c index f72b5c9dcfe9..3028e8d90920 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c @@ -663,6 +663,7 @@ static int esw_create_offloads_fdb_tables(struct mlx5_eswitch *esw, int nvports) if (err) goto miss_rule_err; + kvfree(flow_group_in); return 0; miss_rule_err: From 071304772fc747d5df13c51f1cf48a4b922a5e0d Mon Sep 17 00:00:00 2001 From: Roi Dayan Date: Sun, 19 Aug 2018 08:56:09 +0300 Subject: [PATCH 0675/1762] net/mlx5: Fix not releasing read lock when adding flow rules If building match list fg fails and we never jumped to search_again_locked label then the function returned without unlocking the read lock. Fixes: bd71b08ec2ee ("net/mlx5: Support multiple updates of steering rules in parallel") Signed-off-by: Roi Dayan Reviewed-by: Maor Gottlieb Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c index f418541af7cf..384b560f2a93 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c @@ -1726,6 +1726,8 @@ search_again_locked: if (err) { if (take_write) up_write_ref_node(&ft->node); + else + up_read_ref_node(&ft->node); return ERR_PTR(err); } From df7ddb2396cd162e64aaff9401be05e31e438961 Mon Sep 17 00:00:00 2001 From: Daniel Jurgens Date: Mon, 27 Aug 2018 09:09:46 -0500 Subject: [PATCH 0676/1762] net/mlx5: Consider PCI domain in search for next dev The PCI BDF is not unique. PCI domain must also be considered when searching for the next physical device during lag setup. Example below: mlx5_core 0000:01:00.0: MLX5E: StrdRq(1) RqSz(8) StrdSz(128) RxCqeCmprss(0) mlx5_core 0000:01:00.1: MLX5E: StrdRq(1) RqSz(8) StrdSz(128) RxCqeCmprss(0) mlx5_core 0001:01:00.0: MLX5E: StrdRq(1) RqSz(8) StrdSz(128) RxCqeCmprss(0) mlx5_core 0001:01:00.1: MLX5E: StrdRq(1) RqSz(8) StrdSz(128) RxCqeCmprss(0) Signed-off-by: Daniel Jurgens Reviewed-by: Aviv Heller Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/dev.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/dev.c index b994b80d5714..ada723bd91b6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c @@ -391,16 +391,17 @@ void mlx5_remove_dev_by_protocol(struct mlx5_core_dev *dev, int protocol) } } -static u16 mlx5_gen_pci_id(struct mlx5_core_dev *dev) +static u32 mlx5_gen_pci_id(struct mlx5_core_dev *dev) { - return (u16)((dev->pdev->bus->number << 8) | + return (u32)((pci_domain_nr(dev->pdev->bus) << 16) | + (dev->pdev->bus->number << 8) | PCI_SLOT(dev->pdev->devfn)); } /* Must be called with intf_mutex held */ struct mlx5_core_dev *mlx5_get_next_phys_dev(struct mlx5_core_dev *dev) { - u16 pci_id = mlx5_gen_pci_id(dev); + u32 pci_id = mlx5_gen_pci_id(dev); struct mlx5_core_dev *res = NULL; struct mlx5_core_dev *tmp_dev; struct mlx5_priv *priv; From 47bc94b82291e007da61ee1b3d18c77871f3e158 Mon Sep 17 00:00:00 2001 From: Huy Nguyen Date: Wed, 15 Aug 2018 11:08:48 -0500 Subject: [PATCH 0677/1762] net/mlx5: Check for error in mlx5_attach_interface Currently, mlx5_attach_interface does not check for error after calling intf->attach or intf->add. When these two calls fails, the client is not initialized and will cause issues such as kernel panic on invalid address in the teardown path (mlx5_detach_interface) Fixes: 737a234bb638 ("net/mlx5: Introduce attach/detach to interface API") Signed-off-by: Huy Nguyen Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/dev.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/dev.c index ada723bd91b6..37ba7c78859d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c @@ -132,11 +132,11 @@ void mlx5_add_device(struct mlx5_interface *intf, struct mlx5_priv *priv) delayed_event_start(priv); dev_ctx->context = intf->add(dev); - set_bit(MLX5_INTERFACE_ADDED, &dev_ctx->state); - if (intf->attach) - set_bit(MLX5_INTERFACE_ATTACHED, &dev_ctx->state); - if (dev_ctx->context) { + set_bit(MLX5_INTERFACE_ADDED, &dev_ctx->state); + if (intf->attach) + set_bit(MLX5_INTERFACE_ATTACHED, &dev_ctx->state); + spin_lock_irq(&priv->ctx_lock); list_add_tail(&dev_ctx->list, &priv->ctx_list); @@ -211,12 +211,17 @@ static void mlx5_attach_interface(struct mlx5_interface *intf, struct mlx5_priv if (intf->attach) { if (test_bit(MLX5_INTERFACE_ATTACHED, &dev_ctx->state)) goto out; - intf->attach(dev, dev_ctx->context); + if (intf->attach(dev, dev_ctx->context)) + goto out; + set_bit(MLX5_INTERFACE_ATTACHED, &dev_ctx->state); } else { if (test_bit(MLX5_INTERFACE_ADDED, &dev_ctx->state)) goto out; dev_ctx->context = intf->add(dev); + if (!dev_ctx->context) + goto out; + set_bit(MLX5_INTERFACE_ADDED, &dev_ctx->state); } From fc433829f9a29530d492f0eb20804ac5e6967204 Mon Sep 17 00:00:00 2001 From: Saeed Mahameed Date: Fri, 24 Aug 2018 12:24:10 -0700 Subject: [PATCH 0678/1762] net/mlx5e: Ethtool steering, fix udp source port value Copy and paste bug was introduced in the offending patch. We need to write udp source port value into the headers value and not headers criteria "mask". Fixes: 142644f8a1f8 ("net/mlx5e: Ethtool steering flow parsing refactoring") Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c index 75bb981e00b7..41cde926cdab 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c @@ -191,7 +191,7 @@ set_udp(void *headers_c, void *headers_v, __be16 psrc_m, __be16 psrc_v, { if (psrc_m) { MLX5E_FTE_SET(headers_c, udp_sport, 0xffff); - MLX5E_FTE_SET(headers_c, udp_sport, ntohs(psrc_v)); + MLX5E_FTE_SET(headers_v, udp_sport, ntohs(psrc_v)); } if (pdst_m) { From ad9421e36a77056a4f095d49b9605e80b4d216ed Mon Sep 17 00:00:00 2001 From: Roi Dayan Date: Mon, 20 Aug 2018 11:43:03 +0300 Subject: [PATCH 0679/1762] net/mlx5: Fix possible deadlock from lockdep when adding fte to fg This is a false positive report due to incorrect nested lock annotations as we lock multiple fgs with the same subclass. Instead of locking all fgs only lock the one being used as was done before. Fixes: bd71b08ec2ee ("net/mlx5: Support multiple updates of steering rules in parallel") Signed-off-by: Roi Dayan Signed-off-by: Saeed Mahameed --- .../net/ethernet/mellanox/mlx5/core/fs_core.c | 74 +++++++++---------- 1 file changed, 37 insertions(+), 37 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c index 384b560f2a93..37d114c668b7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c @@ -1578,6 +1578,33 @@ static u64 matched_fgs_get_version(struct list_head *match_head) return version; } +static struct fs_fte * +lookup_fte_locked(struct mlx5_flow_group *g, + u32 *match_value, + bool take_write) +{ + struct fs_fte *fte_tmp; + + if (take_write) + nested_down_write_ref_node(&g->node, FS_LOCK_PARENT); + else + nested_down_read_ref_node(&g->node, FS_LOCK_PARENT); + fte_tmp = rhashtable_lookup_fast(&g->ftes_hash, match_value, + rhash_fte); + if (!fte_tmp || !tree_get_node(&fte_tmp->node)) { + fte_tmp = NULL; + goto out; + } + + nested_down_write_ref_node(&fte_tmp->node, FS_LOCK_CHILD); +out: + if (take_write) + up_write_ref_node(&g->node); + else + up_read_ref_node(&g->node); + return fte_tmp; +} + static struct mlx5_flow_handle * try_add_to_existing_fg(struct mlx5_flow_table *ft, struct list_head *match_head, @@ -1600,10 +1627,6 @@ try_add_to_existing_fg(struct mlx5_flow_table *ft, if (IS_ERR(fte)) return ERR_PTR(-ENOMEM); - list_for_each_entry(iter, match_head, list) { - nested_down_read_ref_node(&iter->g->node, FS_LOCK_PARENT); - } - search_again_locked: version = matched_fgs_get_version(match_head); /* Try to find a fg that already contains a matching fte */ @@ -1611,20 +1634,9 @@ search_again_locked: struct fs_fte *fte_tmp; g = iter->g; - fte_tmp = rhashtable_lookup_fast(&g->ftes_hash, spec->match_value, - rhash_fte); - if (!fte_tmp || !tree_get_node(&fte_tmp->node)) + fte_tmp = lookup_fte_locked(g, spec->match_value, take_write); + if (!fte_tmp) continue; - - nested_down_write_ref_node(&fte_tmp->node, FS_LOCK_CHILD); - if (!take_write) { - list_for_each_entry(iter, match_head, list) - up_read_ref_node(&iter->g->node); - } else { - list_for_each_entry(iter, match_head, list) - up_write_ref_node(&iter->g->node); - } - rule = add_rule_fg(g, spec->match_value, flow_act, dest, dest_num, fte_tmp); up_write_ref_node(&fte_tmp->node); @@ -1633,19 +1645,6 @@ search_again_locked: return rule; } - /* No group with matching fte found. Try to add a new fte to any - * matching fg. - */ - - if (!take_write) { - list_for_each_entry(iter, match_head, list) - up_read_ref_node(&iter->g->node); - list_for_each_entry(iter, match_head, list) - nested_down_write_ref_node(&iter->g->node, - FS_LOCK_PARENT); - take_write = true; - } - /* Check the ft version, for case that new flow group * was added while the fgs weren't locked */ @@ -1657,27 +1656,30 @@ search_again_locked: /* Check the fgs version, for case the new FTE with the * same values was added while the fgs weren't locked */ - if (version != matched_fgs_get_version(match_head)) + if (version != matched_fgs_get_version(match_head)) { + take_write = true; goto search_again_locked; + } list_for_each_entry(iter, match_head, list) { g = iter->g; if (!g->node.active) continue; + + nested_down_write_ref_node(&g->node, FS_LOCK_PARENT); + err = insert_fte(g, fte); if (err) { + up_write_ref_node(&g->node); if (err == -ENOSPC) continue; - list_for_each_entry(iter, match_head, list) - up_write_ref_node(&iter->g->node); kmem_cache_free(steering->ftes_cache, fte); return ERR_PTR(err); } nested_down_write_ref_node(&fte->node, FS_LOCK_CHILD); - list_for_each_entry(iter, match_head, list) - up_write_ref_node(&iter->g->node); + up_write_ref_node(&g->node); rule = add_rule_fg(g, spec->match_value, flow_act, dest, dest_num, fte); up_write_ref_node(&fte->node); @@ -1686,8 +1688,6 @@ search_again_locked: } rule = ERR_PTR(-ENOENT); out: - list_for_each_entry(iter, match_head, list) - up_write_ref_node(&iter->g->node); kmem_cache_free(steering->ftes_cache, fte); return rule; } From 792fab2c0d45758ad3d187bd252570d2bb627fa9 Mon Sep 17 00:00:00 2001 From: Weinan Li Date: Tue, 4 Sep 2018 14:13:43 +0800 Subject: [PATCH 0680/1762] drm/i915/gvt: Fix the incorrect length of child_device_config issue GVT-g emualte the opregion for guest with bdb version as '186' which child_device_config length should be '33'. v2: split into 2 patch. 1st for issue fix, 2nd for code clean up.(Zhenyu) v3: add fixes tag.(Zhenyu) Fixes: 4023f301d28f ("drm/i915/gvt: opregion virtualization for win") CC: Xiaolin Zhang Reviewed-by: Xiaolin Zhang Signed-off-by: Weinan Li Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/opregion.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/opregion.c b/drivers/gpu/drm/i915/gvt/opregion.c index fa75a2eead90..b0d3a43ccd03 100644 --- a/drivers/gpu/drm/i915/gvt/opregion.c +++ b/drivers/gpu/drm/i915/gvt/opregion.c @@ -42,8 +42,6 @@ #define DEVICE_TYPE_EFP3 0x20 #define DEVICE_TYPE_EFP4 0x10 -#define DEV_SIZE 38 - struct opregion_header { u8 signature[16]; u32 size; @@ -63,6 +61,10 @@ struct bdb_data_header { u16 size; /* data size */ } __packed; +/* For supporting windows guest with opregion, here hardcode the emulated + * bdb header version as '186', and the corresponding child_device_config + * length should be '33' but not '38'. + */ struct efp_child_device_config { u16 handle; u16 device_type; @@ -109,12 +111,6 @@ struct efp_child_device_config { u8 mipi_bridge_type; /* 171 */ u16 device_class_ext; u8 dvo_function; - u8 dp_usb_type_c:1; /* 195 */ - u8 skip6:7; - u8 dp_usb_type_c_2x_gpio_index; /* 195 */ - u16 dp_usb_type_c_2x_gpio_pin; /* 195 */ - u8 iboost_dp:4; /* 196 */ - u8 iboost_hdmi:4; /* 196 */ } __packed; struct vbt { @@ -155,7 +151,7 @@ static void virt_vbt_generation(struct vbt *v) v->header.bdb_offset = offsetof(struct vbt, bdb_header); strcpy(&v->bdb_header.signature[0], "BIOS_DATA_BLOCK"); - v->bdb_header.version = 186; /* child_dev_size = 38 */ + v->bdb_header.version = 186; /* child_dev_size = 33 */ v->bdb_header.header_size = sizeof(v->bdb_header); v->bdb_header.bdb_size = sizeof(struct vbt) - sizeof(struct vbt_header) @@ -169,11 +165,13 @@ static void virt_vbt_generation(struct vbt *v) /* child device */ num_child = 4; /* each port has one child */ + v->general_definitions.child_dev_size = + sizeof(struct efp_child_device_config); v->general_definitions_header.id = BDB_GENERAL_DEFINITIONS; /* size will include child devices */ v->general_definitions_header.size = - sizeof(struct bdb_general_definitions) + num_child * DEV_SIZE; - v->general_definitions.child_dev_size = DEV_SIZE; + sizeof(struct bdb_general_definitions) + + num_child * v->general_definitions.child_dev_size; /* portA */ v->child0.handle = DEVICE_TYPE_EFP1; From 0a3b8b2b215f9e84b82ae97df71292ccfd92b1e7 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Mon, 3 Sep 2018 19:12:41 -0700 Subject: [PATCH 0681/1762] tipc: orphan sock in tipc_release() Before we unlock the sock in tipc_release(), we have to detach sk->sk_socket from sk, otherwise a parallel tipc_sk_fill_sock_diag() could stil read it after we free this socket. Fixes: c30b70deb5f4 ("tipc: implement socket diagnostics for AF_TIPC") Reported-and-tested-by: syzbot+48804b87c16588ad491d@syzkaller.appspotmail.com Cc: Jon Maloy Cc: Ying Xue Signed-off-by: Cong Wang Acked-by: Ying Xue Signed-off-by: David S. Miller --- net/tipc/socket.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index ab7a2a7178f7..a0ff8bffc96b 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -576,6 +576,7 @@ static int tipc_release(struct socket *sock) sk_stop_timer(sk, &sk->sk_timer); tipc_sk_remove(tsk); + sock_orphan(sk); /* Reject any messages that accumulated in backlog queue */ release_sock(sk); tipc_dest_list_purge(&tsk->cong_links); From ee28bb56ac5b4c0c08ef10d33cc7adb749bbf4c6 Mon Sep 17 00:00:00 2001 From: Davide Caratti Date: Tue, 4 Sep 2018 19:00:19 +0200 Subject: [PATCH 0682/1762] net/sched: fix memory leak in act_tunnel_key_init() If users try to install act_tunnel_key 'set' rules with duplicate values of 'index', the tunnel metadata are allocated, but never released. Then, kmemleak complains as follows: # tc a a a tunnel_key set src_ip 1.1.1.1 dst_ip 2.2.2.2 id 42 index 111 # echo clear > /sys/kernel/debug/kmemleak # tc a a a tunnel_key set src_ip 1.1.1.1 dst_ip 2.2.2.2 id 42 index 111 Error: TC IDR already exists. We have an error talking to the kernel # echo scan > /sys/kernel/debug/kmemleak # cat /sys/kernel/debug/kmemleak unreferenced object 0xffff8800574e6c80 (size 256): comm "tc", pid 5617, jiffies 4298118009 (age 57.990s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 1c e8 b0 ff ff ff ff ................ 81 24 c2 ad ff ff ff ff 00 00 00 00 00 00 00 00 .$.............. backtrace: [<00000000b7afbf4e>] tunnel_key_init+0x8a5/0x1800 [act_tunnel_key] [<000000007d98fccd>] tcf_action_init_1+0x698/0xac0 [<0000000099b8f7cc>] tcf_action_init+0x15c/0x590 [<00000000dc60eebe>] tc_ctl_action+0x336/0x5c2 [<000000002f5a2f7d>] rtnetlink_rcv_msg+0x357/0x8e0 [<000000000bfe7575>] netlink_rcv_skb+0x124/0x350 [<00000000edab656f>] netlink_unicast+0x40f/0x5d0 [<00000000b322cdcb>] netlink_sendmsg+0x6e8/0xba0 [<0000000063d9d490>] sock_sendmsg+0xb3/0xf0 [<00000000f0d3315a>] ___sys_sendmsg+0x654/0x960 [<00000000c06cbd42>] __sys_sendmsg+0xd3/0x170 [<00000000ce72e4b0>] do_syscall_64+0xa5/0x470 [<000000005caa2d97>] entry_SYSCALL_64_after_hwframe+0x49/0xbe [<00000000fac1b476>] 0xffffffffffffffff This problem theoretically happens also in case users attempt to setup a geneve rule having wrong configuration data, or when the kernel fails to allocate 'params_new'. Ensure that tunnel_key_init() releases the tunnel metadata also in the above conditions. Addresses-Coverity-ID: 1373974 ("Resource leak") Fixes: d0f6dd8a914f4 ("net/sched: Introduce act_tunnel_key") Fixes: 0ed5269f9e41f ("net/sched: add tunnel option support to act_tunnel_key") Signed-off-by: Davide Caratti Acked-by: Cong Wang Signed-off-by: David S. Miller --- net/sched/act_tunnel_key.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c index 420759153d5f..28d58bbc953e 100644 --- a/net/sched/act_tunnel_key.c +++ b/net/sched/act_tunnel_key.c @@ -317,7 +317,7 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla, &metadata->u.tun_info, opts_len, extack); if (ret < 0) - goto err_out; + goto release_tun_meta; } metadata->u.tun_info.mode |= IP_TUNNEL_INFO_TX; @@ -333,23 +333,24 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla, &act_tunnel_key_ops, bind, true); if (ret) { NL_SET_ERR_MSG(extack, "Cannot create TC IDR"); - goto err_out; + goto release_tun_meta; } ret = ACT_P_CREATED; } else if (!ovr) { - tcf_idr_release(*a, bind); NL_SET_ERR_MSG(extack, "TC IDR already exists"); - return -EEXIST; + ret = -EEXIST; + goto release_tun_meta; } t = to_tunnel_key(*a); params_new = kzalloc(sizeof(*params_new), GFP_KERNEL); if (unlikely(!params_new)) { - tcf_idr_release(*a, bind); NL_SET_ERR_MSG(extack, "Cannot allocate tunnel key parameters"); - return -ENOMEM; + ret = -ENOMEM; + exists = true; + goto release_tun_meta; } params_new->tcft_action = parm->t_action; params_new->tcft_enc_metadata = metadata; @@ -367,6 +368,9 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla, return ret; +release_tun_meta: + dst_release(&metadata->dst); + err_out: if (exists) tcf_idr_release(*a, bind); From 222440996d6daf635bed6cb35041be22ede3e8a0 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Wed, 5 Sep 2018 16:55:10 +0200 Subject: [PATCH 0683/1762] net/af_iucv: drop inbound packets with invalid flags Inbound packets may have any combination of flag bits set in their iucv header. If we don't know how to handle a specific combination, drop the skb instead of leaking it. To clarify what error is returned in this case, replace the hard-coded 0 with the corresponding macro. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller --- net/iucv/af_iucv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index a21d8ed0a325..01000c14417f 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -2155,8 +2155,8 @@ static int afiucv_hs_rcv(struct sk_buff *skb, struct net_device *dev, struct sock *sk; struct iucv_sock *iucv; struct af_iucv_trans_hdr *trans_hdr; + int err = NET_RX_SUCCESS; char nullstring[8]; - int err = 0; if (skb->len < (ETH_HLEN + sizeof(struct af_iucv_trans_hdr))) { WARN_ONCE(1, "AF_IUCV too short skb, len=%d, min=%d", @@ -2254,7 +2254,7 @@ static int afiucv_hs_rcv(struct sk_buff *skb, struct net_device *dev, err = afiucv_hs_callback_rx(sk, skb); break; default: - ; + kfree_skb(skb); } return err; From b2f543949acd1ba64313fdad9e672ef47550d773 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Wed, 5 Sep 2018 16:55:11 +0200 Subject: [PATCH 0684/1762] net/af_iucv: fix skb handling on HiperTransport xmit error When sending an skb, afiucv_hs_send() bails out on various error conditions. But currently the caller has no way of telling whether the skb was freed or not - resulting in potentially either a) leaked skbs from iucv_send_ctrl(), or b) double-free's from iucv_sock_sendmsg(). As dev_queue_xmit() will always consume the skb (even on error), be consistent and also free the skb from all other error paths. This way callers no longer need to care about managing the skb. Signed-off-by: Julian Wiedmann Reviewed-by: Ursula Braun Signed-off-by: David S. Miller --- net/iucv/af_iucv.c | 34 +++++++++++++++++++++++----------- 1 file changed, 23 insertions(+), 11 deletions(-) diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index 01000c14417f..e2f16a0173a9 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -351,20 +351,28 @@ static int afiucv_hs_send(struct iucv_message *imsg, struct sock *sock, memcpy(&phs_hdr->iucv_hdr, imsg, sizeof(struct iucv_message)); skb->dev = iucv->hs_dev; - if (!skb->dev) - return -ENODEV; - if (!(skb->dev->flags & IFF_UP) || !netif_carrier_ok(skb->dev)) - return -ENETDOWN; + if (!skb->dev) { + err = -ENODEV; + goto err_free; + } + if (!(skb->dev->flags & IFF_UP) || !netif_carrier_ok(skb->dev)) { + err = -ENETDOWN; + goto err_free; + } if (skb->len > skb->dev->mtu) { - if (sock->sk_type == SOCK_SEQPACKET) - return -EMSGSIZE; - else - skb_trim(skb, skb->dev->mtu); + if (sock->sk_type == SOCK_SEQPACKET) { + err = -EMSGSIZE; + goto err_free; + } + skb_trim(skb, skb->dev->mtu); } skb->protocol = cpu_to_be16(ETH_P_AF_IUCV); nskb = skb_clone(skb, GFP_ATOMIC); - if (!nskb) - return -ENOMEM; + if (!nskb) { + err = -ENOMEM; + goto err_free; + } + skb_queue_tail(&iucv->send_skb_q, nskb); err = dev_queue_xmit(skb); if (net_xmit_eval(err)) { @@ -375,6 +383,10 @@ static int afiucv_hs_send(struct iucv_message *imsg, struct sock *sock, WARN_ON(atomic_read(&iucv->msg_recv) < 0); } return net_xmit_eval(err); + +err_free: + kfree_skb(skb); + return err; } static struct sock *__iucv_get_sock_by_name(char *nm) @@ -1167,7 +1179,7 @@ static int iucv_sock_sendmsg(struct socket *sock, struct msghdr *msg, err = afiucv_hs_send(&txmsg, sk, skb, 0); if (err) { atomic_dec(&iucv->msg_sent); - goto fail; + goto out; } } else { /* Classic VM IUCV transport */ skb_queue_tail(&iucv->send_skb_q, skb); From b7f41565546d393747fd554f9526c1187c6bf652 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Wed, 5 Sep 2018 16:55:12 +0200 Subject: [PATCH 0685/1762] net/iucv: declare iucv_path_table_empty() as static Fixes a compile warning. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller --- net/iucv/iucv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c index 8f7ef167c45a..eb502c6290c2 100644 --- a/net/iucv/iucv.c +++ b/net/iucv/iucv.c @@ -1874,7 +1874,7 @@ static void iucv_pm_complete(struct device *dev) * Returns 0 if there are still iucv pathes defined * 1 if there are no iucv pathes defined */ -int iucv_path_table_empty(void) +static int iucv_path_table_empty(void) { int i; From c24fb71fa4f764f02c17cbf88a969f109794e602 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Thu, 6 Sep 2018 10:39:01 +0100 Subject: [PATCH 0686/1762] ASoC: hdac_hdmi: remove redundant check for !port condition The !port check is redundant as it being performed in the following check. Remove it. Signed-off-by: Colin Ian King Signed-off-by: Mark Brown --- sound/soc/codecs/hdac_hdmi.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 7b8533abf637..dc6a0dfea050 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -1961,9 +1961,6 @@ static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdev, int pcm_idx) port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head); - if (!port) - return 0; - if (!port || !port->eld.eld_valid) return 0; From 501683d0cd54714de78501efe945bbe4356b922b Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 6 Sep 2018 03:21:16 +0000 Subject: [PATCH 0687/1762] ASoC: rsnd: gen: use tab instead of white-space commit 8c9d75033340 ("ASoC: rsnd: ssiu: Support BUSIF other than BUSIF0") added new SSIU registers. But it is using white-space for it. This patch fixup it to use tab. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/sh/rcar/gen.c | 48 ++++++++++++++++++++--------------------- 1 file changed, 24 insertions(+), 24 deletions(-) diff --git a/sound/soc/sh/rcar/gen.c b/sound/soc/sh/rcar/gen.c index 3032869a7f26..1f7881cc16b2 100644 --- a/sound/soc/sh/rcar/gen.c +++ b/sound/soc/sh/rcar/gen.c @@ -222,30 +222,30 @@ static int rsnd_gen2_probe(struct rsnd_priv *priv) RSND_GEN_M_REG(SSI_BUSIF0_MODE, 0x0, 0x80), RSND_GEN_M_REG(SSI_BUSIF0_ADINR, 0x4, 0x80), RSND_GEN_M_REG(SSI_BUSIF0_DALIGN, 0x8, 0x80), - RSND_GEN_M_REG(SSI_BUSIF1_MODE, 0x20, 0x80), - RSND_GEN_M_REG(SSI_BUSIF1_ADINR, 0x24, 0x80), - RSND_GEN_M_REG(SSI_BUSIF1_DALIGN, 0x28, 0x80), - RSND_GEN_M_REG(SSI_BUSIF2_MODE, 0x40, 0x80), - RSND_GEN_M_REG(SSI_BUSIF2_ADINR, 0x44, 0x80), - RSND_GEN_M_REG(SSI_BUSIF2_DALIGN, 0x48, 0x80), - RSND_GEN_M_REG(SSI_BUSIF3_MODE, 0x60, 0x80), - RSND_GEN_M_REG(SSI_BUSIF3_ADINR, 0x64, 0x80), - RSND_GEN_M_REG(SSI_BUSIF3_DALIGN, 0x68, 0x80), - RSND_GEN_M_REG(SSI_BUSIF4_MODE, 0x500, 0x80), - RSND_GEN_M_REG(SSI_BUSIF4_ADINR, 0x504, 0x80), - RSND_GEN_M_REG(SSI_BUSIF4_DALIGN, 0x508, 0x80), - RSND_GEN_M_REG(SSI_BUSIF5_MODE, 0x520, 0x80), - RSND_GEN_M_REG(SSI_BUSIF5_ADINR, 0x524, 0x80), - RSND_GEN_M_REG(SSI_BUSIF5_DALIGN, 0x528, 0x80), - RSND_GEN_M_REG(SSI_BUSIF6_MODE, 0x540, 0x80), - RSND_GEN_M_REG(SSI_BUSIF6_ADINR, 0x544, 0x80), - RSND_GEN_M_REG(SSI_BUSIF6_DALIGN, 0x548, 0x80), - RSND_GEN_M_REG(SSI_BUSIF7_MODE, 0x560, 0x80), - RSND_GEN_M_REG(SSI_BUSIF7_ADINR, 0x564, 0x80), - RSND_GEN_M_REG(SSI_BUSIF7_DALIGN, 0x568, 0x80), - RSND_GEN_M_REG(SSI_MODE, 0xc, 0x80), - RSND_GEN_M_REG(SSI_CTRL, 0x10, 0x80), - RSND_GEN_M_REG(SSI_INT_ENABLE, 0x18, 0x80), + RSND_GEN_M_REG(SSI_BUSIF1_MODE, 0x20, 0x80), + RSND_GEN_M_REG(SSI_BUSIF1_ADINR, 0x24, 0x80), + RSND_GEN_M_REG(SSI_BUSIF1_DALIGN, 0x28, 0x80), + RSND_GEN_M_REG(SSI_BUSIF2_MODE, 0x40, 0x80), + RSND_GEN_M_REG(SSI_BUSIF2_ADINR, 0x44, 0x80), + RSND_GEN_M_REG(SSI_BUSIF2_DALIGN, 0x48, 0x80), + RSND_GEN_M_REG(SSI_BUSIF3_MODE, 0x60, 0x80), + RSND_GEN_M_REG(SSI_BUSIF3_ADINR, 0x64, 0x80), + RSND_GEN_M_REG(SSI_BUSIF3_DALIGN, 0x68, 0x80), + RSND_GEN_M_REG(SSI_BUSIF4_MODE, 0x500, 0x80), + RSND_GEN_M_REG(SSI_BUSIF4_ADINR, 0x504, 0x80), + RSND_GEN_M_REG(SSI_BUSIF4_DALIGN, 0x508, 0x80), + RSND_GEN_M_REG(SSI_BUSIF5_MODE, 0x520, 0x80), + RSND_GEN_M_REG(SSI_BUSIF5_ADINR, 0x524, 0x80), + RSND_GEN_M_REG(SSI_BUSIF5_DALIGN, 0x528, 0x80), + RSND_GEN_M_REG(SSI_BUSIF6_MODE, 0x540, 0x80), + RSND_GEN_M_REG(SSI_BUSIF6_ADINR, 0x544, 0x80), + RSND_GEN_M_REG(SSI_BUSIF6_DALIGN, 0x548, 0x80), + RSND_GEN_M_REG(SSI_BUSIF7_MODE, 0x560, 0x80), + RSND_GEN_M_REG(SSI_BUSIF7_ADINR, 0x564, 0x80), + RSND_GEN_M_REG(SSI_BUSIF7_DALIGN, 0x568, 0x80), + RSND_GEN_M_REG(SSI_MODE, 0xc, 0x80), + RSND_GEN_M_REG(SSI_CTRL, 0x10, 0x80), + RSND_GEN_M_REG(SSI_INT_ENABLE, 0x18, 0x80), }; static const struct rsnd_regmap_field_conf conf_scu[] = { From dabdbe3ae0cb9a67872fa4ac80ffdef61391f645 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 6 Sep 2018 03:22:01 +0000 Subject: [PATCH 0688/1762] ASoC: rsnd: don't use %p for dev_dbg() rsnd driver sometimes want to know which address is used when debugging. But it will indicate "(____ptrval____)" if it used "%p" on dev_dbg(). Let's use "%pa" or "%px" for it. Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/adg.c | 4 ++-- sound/soc/sh/rcar/dma.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c index 3a3064dda57f..b100c44ec3a3 100644 --- a/sound/soc/sh/rcar/adg.c +++ b/sound/soc/sh/rcar/adg.c @@ -577,7 +577,7 @@ static void rsnd_adg_clk_dbg_info(struct rsnd_priv *priv, struct rsnd_adg *adg) int i; for_each_rsnd_clk(clk, adg, i) - dev_dbg(dev, "%s : %p : %ld\n", + dev_dbg(dev, "%s : %pa : %ld\n", clk_name[i], clk, clk_get_rate(clk)); dev_dbg(dev, "BRGCKR = 0x%08x, BRRA/BRRB = 0x%x/0x%x\n", @@ -590,7 +590,7 @@ static void rsnd_adg_clk_dbg_info(struct rsnd_priv *priv, struct rsnd_adg *adg) * by BRGCKR::BRGCKR_31 */ for_each_rsnd_clkout(clk, adg, i) - dev_dbg(dev, "clkout %d : %p : %ld\n", i, + dev_dbg(dev, "clkout %d : %pa : %ld\n", i, clk, clk_get_rate(clk)); } #else diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c index f99c1ab3b0bd..c19342d18998 100644 --- a/sound/soc/sh/rcar/dma.c +++ b/sound/soc/sh/rcar/dma.c @@ -393,7 +393,7 @@ static void rsnd_dmapp_write(struct rsnd_dma *dma, u32 data, u32 reg) struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv); struct device *dev = rsnd_priv_to_dev(priv); - dev_dbg(dev, "w %p : %08x\n", rsnd_dmapp_addr(dmac, dma, reg), data); + dev_dbg(dev, "w 0x%px : %08x\n", rsnd_dmapp_addr(dmac, dma, reg), data); iowrite32(data, rsnd_dmapp_addr(dmac, dma, reg)); } From 5d128fbd8b20f8a48cb13c3eced789d1f9573ecd Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Tue, 4 Sep 2018 14:55:26 +0200 Subject: [PATCH 0689/1762] ACPI / bus: Only call dmi_check_system() on X86 Calling dmi_check_system() early only works on X86. Other architectures initialize the DMI subsystem later so it's not ready yet when ACPI itself gets initialized. In the best case it results in a useless call to a function which will do nothing. But depending on the dmi implementation, it could also result in warnings. Best is to not call the function when it can't work and isn't needed. Additionally, if anyone ever needs to add non-x86 quirks, it would surprisingly not work, so document the limitation to avoid confusion. Signed-off-by: Jean Delvare Fixes: cce4f632db20 (ACPI: fix early DSDT dmi check warnings on ia64) Signed-off-by: Rafael J. Wysocki --- drivers/acpi/bus.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 292088fcc624..d2e29a19890d 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -35,11 +35,11 @@ #include #ifdef CONFIG_X86 #include +#include #endif #include #include #include -#include #include #include "internal.h" @@ -82,10 +82,6 @@ static const struct dmi_system_id dsdt_dmi_table[] __initconst = { }, {} }; -#else -static const struct dmi_system_id dsdt_dmi_table[] __initconst = { - {} -}; #endif /* -------------------------------------------------------------------------- @@ -1033,11 +1029,16 @@ void __init acpi_early_init(void) acpi_permanent_mmap = true; +#ifdef CONFIG_X86 /* * If the machine falls into the DMI check table, - * DSDT will be copied to memory + * DSDT will be copied to memory. + * Note that calling dmi_check_system() here on other architectures + * would not be OK because only x86 initializes dmi early enough. + * Thankfully only x86 systems need such quirks for now. */ dmi_check_system(dsdt_dmi_table); +#endif status = acpi_reallocate_root_table(); if (ACPI_FAILURE(status)) { From f11fc4bc669b8622510c1039499f5a9d24248fec Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Mon, 3 Sep 2018 10:00:07 +0800 Subject: [PATCH 0690/1762] ACPI / LPSS: Force LPSS quirks on boot Commit 12864ff8545f (ACPI / LPSS: Avoid PM quirks on suspend and resume from hibernation) bypasses lpss quirks for S3 and S4, by setting a flag for S3/S4 in acpi_lpss_suspend(), and check that flag in acpi_lpss_resume(). But this overlooks the boot case where acpi_lpss_resume() may get called without a corresponding acpi_lpss_suspend() having been called. Thus force setting the flag during boot. Fixes: 12864ff8545f (ACPI / LPSS: Avoid PM quirks on suspend and resume from hibernation) Link: https://bugzilla.kernel.org/show_bug.cgi?id=200989 Reported-and-tested-by: William Lieurance Signed-off-by: Zhang Rui Cc: 4.15+ # 4.15+: 12864ff8545f (ACPI / LPSS: Avoid ...) Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpi_lpss.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index 9706613eecf9..bf64cfa30feb 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -879,7 +879,7 @@ static void acpi_lpss_dismiss(struct device *dev) #define LPSS_GPIODEF0_DMA_LLP BIT(13) static DEFINE_MUTEX(lpss_iosf_mutex); -static bool lpss_iosf_d3_entered; +static bool lpss_iosf_d3_entered = true; static void lpss_iosf_enter_d3_state(void) { From 9ab708aef61f5620113269a9d1bdb1543d1207d0 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Thu, 6 Sep 2018 11:41:52 +0100 Subject: [PATCH 0691/1762] ASoC: sgtl5000: avoid division by zero if lo_vag is zero In the case where lo_vag <= SGTL5000_LINE_OUT_GND_BASE, lo_vag is set to zero and later vol_quot is computed by dividing by lo_vag causing a division by zero error. Fix this by avoiding a zero division and set vol_quot to zero in this specific case so that the lowest setting for i is correctly set. Signed-off-by: Colin Ian King Signed-off-by: Mark Brown --- sound/soc/codecs/sgtl5000.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c index 60764f6201b1..add18d6d77da 100644 --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -1218,7 +1218,7 @@ static int sgtl5000_set_power_regs(struct snd_soc_component *component) * Searching for a suitable index solving this formula: * idx = 40 * log10(vag_val / lo_cagcntrl) + 15 */ - vol_quot = (vag * 100) / lo_vag; + vol_quot = lo_vag ? (vag * 100) / lo_vag : 0; lo_vol = 0; for (i = 0; i < ARRAY_SIZE(vol_quot_table); i++) { if (vol_quot >= vol_quot_table[i]) From 88d0895d0ea9d4431507d576c963f2ff9918144d Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Fri, 31 Aug 2018 15:08:44 +0200 Subject: [PATCH 0692/1762] batman-adv: Avoid probe ELP information leak The probe ELPs for WiFi interfaces are expanded to contain at least BATADV_ELP_MIN_PROBE_SIZE bytes. This is usually a lot more than the number of bytes which the template ELP packet requires. These extra padding bytes were not initialized and thus could contain data which were previously stored at the same location. It is therefore required to set it to some predefined or random values to avoid leaking private information from the system transmitting these kind of packets. Fixes: e4623c913508 ("batman-adv: Avoid probe ELP information leak") Signed-off-by: Sven Eckelmann Acked-by: Antonio Quartulli Signed-off-by: Simon Wunderlich --- net/batman-adv/bat_v_elp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c index 71c20c1d4002..e103c759b7ab 100644 --- a/net/batman-adv/bat_v_elp.c +++ b/net/batman-adv/bat_v_elp.c @@ -241,7 +241,7 @@ batadv_v_elp_wifi_neigh_probe(struct batadv_hardif_neigh_node *neigh) * the packet to be exactly of that size to make the link * throughput estimation effective. */ - skb_put(skb, probe_len - hard_iface->bat_v.elp_skb->len); + skb_put_zero(skb, probe_len - hard_iface->bat_v.elp_skb->len); batadv_dbg(BATADV_DBG_BATMAN, bat_priv, "Sending unicast (probe) ELP packet on interface %s to %pM\n", From b9fd14c20871e6189f635e49b32d7789e430b3c8 Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Fri, 31 Aug 2018 16:46:47 +0200 Subject: [PATCH 0693/1762] batman-adv: Fix segfault when writing to throughput_override The per hardif sysfs file "batman_adv/throughput_override" prints the resulting change as info text when the users writes to this file. It uses the helper function batadv_info to add it at the same time to the kernel ring buffer and to the batman-adv debug log (when CONFIG_BATMAN_ADV_DEBUG is enabled). The function batadv_info requires as first parameter the batman-adv softif net_device. This parameter is then used to find the private buffer which contains the debug log for this batman-adv interface. But batadv_store_throughput_override used as first argument the slave net_device. This slave device doesn't have the batadv_priv private data which is access by batadv_info. Writing to this file with CONFIG_BATMAN_ADV_DEBUG enabled can either lead to a segfault or to memory corruption. Fixes: 0b5ecc6811bd ("batman-adv: add throughput override attribute to hard_ifaces") Signed-off-by: Sven Eckelmann Acked-by: Marek Lindner Signed-off-by: Simon Wunderlich --- net/batman-adv/sysfs.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c index f2eef43bd2ec..3a76e8970c02 100644 --- a/net/batman-adv/sysfs.c +++ b/net/batman-adv/sysfs.c @@ -1090,8 +1090,9 @@ static ssize_t batadv_store_throughput_override(struct kobject *kobj, if (old_tp_override == tp_override) goto out; - batadv_info(net_dev, "%s: Changing from: %u.%u MBit to: %u.%u MBit\n", - "throughput_override", + batadv_info(hard_iface->soft_iface, + "%s: %s: Changing from: %u.%u MBit to: %u.%u MBit\n", + "throughput_override", net_dev->name, old_tp_override / 10, old_tp_override % 10, tp_override / 10, tp_override % 10); From a25bab9d723a08bd0bdafb1529faf9094c690b70 Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Fri, 31 Aug 2018 16:56:29 +0200 Subject: [PATCH 0694/1762] batman-adv: Fix segfault when writing to sysfs elp_interval The per hardif sysfs file "batman_adv/elp_interval" is using the generic functions to store/show uint values. The helper __batadv_store_uint_attr requires the softif net_device as parameter to print the resulting change as info text when the users writes to this file. It uses the helper function batadv_info to add it at the same time to the kernel ring buffer and to the batman-adv debug log (when CONFIG_BATMAN_ADV_DEBUG is enabled). The function batadv_info requires as first parameter the batman-adv softif net_device. This parameter is then used to find the private buffer which contains the debug log for this batman-adv interface. But batadv_store_throughput_override used as first argument the slave net_device. This slave device doesn't have the batadv_priv private data which is access by batadv_info. Writing to this file with CONFIG_BATMAN_ADV_DEBUG enabled can either lead to a segfault or to memory corruption. Fixes: 0744ff8fa8fa ("batman-adv: Add hard_iface specific sysfs wrapper macros for UINT") Signed-off-by: Sven Eckelmann Acked-by: Marek Lindner Signed-off-by: Simon Wunderlich --- net/batman-adv/sysfs.c | 25 +++++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-) diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c index 3a76e8970c02..09427fc6494a 100644 --- a/net/batman-adv/sysfs.c +++ b/net/batman-adv/sysfs.c @@ -188,7 +188,8 @@ ssize_t batadv_store_##_name(struct kobject *kobj, \ \ return __batadv_store_uint_attr(buff, count, _min, _max, \ _post_func, attr, \ - &bat_priv->_var, net_dev); \ + &bat_priv->_var, net_dev, \ + NULL); \ } #define BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \ @@ -262,7 +263,9 @@ ssize_t batadv_store_##_name(struct kobject *kobj, \ \ length = __batadv_store_uint_attr(buff, count, _min, _max, \ _post_func, attr, \ - &hard_iface->_var, net_dev); \ + &hard_iface->_var, \ + hard_iface->soft_iface, \ + net_dev); \ \ batadv_hardif_put(hard_iface); \ return length; \ @@ -356,10 +359,12 @@ __batadv_store_bool_attr(char *buff, size_t count, static int batadv_store_uint_attr(const char *buff, size_t count, struct net_device *net_dev, + struct net_device *slave_dev, const char *attr_name, unsigned int min, unsigned int max, atomic_t *attr) { + char ifname[IFNAMSIZ + 3] = ""; unsigned long uint_val; int ret; @@ -385,8 +390,11 @@ static int batadv_store_uint_attr(const char *buff, size_t count, if (atomic_read(attr) == uint_val) return count; - batadv_info(net_dev, "%s: Changing from: %i to: %lu\n", - attr_name, atomic_read(attr), uint_val); + if (slave_dev) + snprintf(ifname, sizeof(ifname), "%s: ", slave_dev->name); + + batadv_info(net_dev, "%s: %sChanging from: %i to: %lu\n", + attr_name, ifname, atomic_read(attr), uint_val); atomic_set(attr, uint_val); return count; @@ -397,12 +405,13 @@ static ssize_t __batadv_store_uint_attr(const char *buff, size_t count, void (*post_func)(struct net_device *), const struct attribute *attr, atomic_t *attr_store, - struct net_device *net_dev) + struct net_device *net_dev, + struct net_device *slave_dev) { int ret; - ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max, - attr_store); + ret = batadv_store_uint_attr(buff, count, net_dev, slave_dev, + attr->name, min, max, attr_store); if (post_func && ret) post_func(net_dev); @@ -571,7 +580,7 @@ static ssize_t batadv_store_gw_sel_class(struct kobject *kobj, return __batadv_store_uint_attr(buff, count, 1, BATADV_TQ_MAX_VALUE, batadv_post_gw_reselect, attr, &bat_priv->gw.sel_class, - bat_priv->soft_iface); + bat_priv->soft_iface, NULL); } static ssize_t batadv_show_gw_bwidth(struct kobject *kobj, From dff9bc42ab0b2d38c5e90ddd79b238fed5b4c7ad Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Sun, 12 Aug 2018 21:04:41 +0200 Subject: [PATCH 0695/1762] batman-adv: Prevent duplicated gateway_node entry The function batadv_gw_node_add is responsible for adding new gw_node to the gateway_list. It is expecting that the caller already checked that there is not already an entry with the same key or not. But the lock for the list is only held when the list is really modified. This could lead to duplicated entries because another context could create an entry with the same key between the check and the list manipulation. The check and the manipulation of the list must therefore be in the same locked code section. Fixes: c6c8fea29769 ("net: Add batman-adv meshing protocol") Signed-off-by: Sven Eckelmann Acked-by: Marek Lindner Signed-off-by: Simon Wunderlich --- net/batman-adv/gateway_client.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c index 8b198ee798c9..140c61a3f1ec 100644 --- a/net/batman-adv/gateway_client.c +++ b/net/batman-adv/gateway_client.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include #include @@ -348,6 +349,9 @@ out: * @bat_priv: the bat priv with all the soft interface information * @orig_node: originator announcing gateway capabilities * @gateway: announced bandwidth information + * + * Has to be called with the appropriate locks being acquired + * (gw.list_lock). */ static void batadv_gw_node_add(struct batadv_priv *bat_priv, struct batadv_orig_node *orig_node, @@ -355,6 +359,8 @@ static void batadv_gw_node_add(struct batadv_priv *bat_priv, { struct batadv_gw_node *gw_node; + lockdep_assert_held(&bat_priv->gw.list_lock); + if (gateway->bandwidth_down == 0) return; @@ -369,10 +375,8 @@ static void batadv_gw_node_add(struct batadv_priv *bat_priv, gw_node->bandwidth_down = ntohl(gateway->bandwidth_down); gw_node->bandwidth_up = ntohl(gateway->bandwidth_up); - spin_lock_bh(&bat_priv->gw.list_lock); kref_get(&gw_node->refcount); hlist_add_head_rcu(&gw_node->list, &bat_priv->gw.gateway_list); - spin_unlock_bh(&bat_priv->gw.list_lock); batadv_dbg(BATADV_DBG_BATMAN, bat_priv, "Found new gateway %pM -> gw bandwidth: %u.%u/%u.%u MBit\n", @@ -428,11 +432,14 @@ void batadv_gw_node_update(struct batadv_priv *bat_priv, { struct batadv_gw_node *gw_node, *curr_gw = NULL; + spin_lock_bh(&bat_priv->gw.list_lock); gw_node = batadv_gw_node_get(bat_priv, orig_node); if (!gw_node) { batadv_gw_node_add(bat_priv, orig_node, gateway); + spin_unlock_bh(&bat_priv->gw.list_lock); goto out; } + spin_unlock_bh(&bat_priv->gw.list_lock); if (gw_node->bandwidth_down == ntohl(gateway->bandwidth_down) && gw_node->bandwidth_up == ntohl(gateway->bandwidth_up)) From fa122fec8640eb7186ce5a41b83a4c1744ceef8f Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Sun, 12 Aug 2018 21:04:42 +0200 Subject: [PATCH 0696/1762] batman-adv: Prevent duplicated nc_node entry The function batadv_nc_get_nc_node is responsible for adding new nc_nodes to the in_coding_list and out_coding_list. It first checks whether the entry already is in the list or not. If it is, then the creation of a new entry is aborted. But the lock for the list is only held when the list is really modified. This could lead to duplicated entries because another context could create an entry with the same key between the check and the list manipulation. The check and the manipulation of the list must therefore be in the same locked code section. Fixes: d56b1705e28c ("batman-adv: network coding - detect coding nodes and remove these after timeout") Signed-off-by: Sven Eckelmann Acked-by: Marek Lindner Signed-off-by: Simon Wunderlich --- net/batman-adv/network-coding.c | 41 ++++++++++++++++++--------------- 1 file changed, 22 insertions(+), 19 deletions(-) diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c index c3578444f3cb..34caf129a9bf 100644 --- a/net/batman-adv/network-coding.c +++ b/net/batman-adv/network-coding.c @@ -854,24 +854,6 @@ batadv_nc_get_nc_node(struct batadv_priv *bat_priv, spinlock_t *lock; /* Used to lock list selected by "int in_coding" */ struct list_head *list; - /* Check if nc_node is already added */ - nc_node = batadv_nc_find_nc_node(orig_node, orig_neigh_node, in_coding); - - /* Node found */ - if (nc_node) - return nc_node; - - nc_node = kzalloc(sizeof(*nc_node), GFP_ATOMIC); - if (!nc_node) - return NULL; - - /* Initialize nc_node */ - INIT_LIST_HEAD(&nc_node->list); - kref_init(&nc_node->refcount); - ether_addr_copy(nc_node->addr, orig_node->orig); - kref_get(&orig_neigh_node->refcount); - nc_node->orig_node = orig_neigh_node; - /* Select ingoing or outgoing coding node */ if (in_coding) { lock = &orig_neigh_node->in_coding_list_lock; @@ -881,13 +863,34 @@ batadv_nc_get_nc_node(struct batadv_priv *bat_priv, list = &orig_neigh_node->out_coding_list; } + spin_lock_bh(lock); + + /* Check if nc_node is already added */ + nc_node = batadv_nc_find_nc_node(orig_node, orig_neigh_node, in_coding); + + /* Node found */ + if (nc_node) + goto unlock; + + nc_node = kzalloc(sizeof(*nc_node), GFP_ATOMIC); + if (!nc_node) + goto unlock; + + /* Initialize nc_node */ + INIT_LIST_HEAD(&nc_node->list); + kref_init(&nc_node->refcount); + ether_addr_copy(nc_node->addr, orig_node->orig); + kref_get(&orig_neigh_node->refcount); + nc_node->orig_node = orig_neigh_node; + batadv_dbg(BATADV_DBG_NC, bat_priv, "Adding nc_node %pM -> %pM\n", nc_node->addr, nc_node->orig_node->orig); /* Add nc_node to orig_node */ - spin_lock_bh(lock); kref_get(&nc_node->refcount); list_add_tail_rcu(&nc_node->list, list); + +unlock: spin_unlock_bh(lock); return nc_node; From 17f6bac2249356c795339e03a0742cd79be3cab8 Mon Sep 17 00:00:00 2001 From: Chuanhua Lei Date: Thu, 6 Sep 2018 18:03:23 +0800 Subject: [PATCH 0697/1762] x86/tsc: Prevent result truncation on 32bit Loops per jiffy is calculated by multiplying tsc_khz with 1e3 and then dividing it by HZ. Both tsc_khz and the temporary variable holding the multiplication result are of type unsigned long, so on 32bit the result is truncated to the lower 32bit. Use u64 as type for the temporary variable and cast tsc_khz to it before multiplying. [ tglx: Massaged changelog and removed pointless braces ] Fixes: cf7a63ef4e02 ("x86/tsc: Calibrate tsc only once") Signed-off-by: Chuanhua Lei Signed-off-by: Thomas Gleixner Cc: yixin.zhu@linux.intel.com Cc: "H. Peter Anvin" Cc: Peter Zijlstra Cc: Len Brown Cc: Pavel Tatashin Cc: Rajvi Jingar Cc: Dou Liyang Link: https://lkml.kernel.org/r/1536228203-18701-1-git-send-email-chuanhua.lei@linux.intel.com --- arch/x86/kernel/tsc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 1463468ba9a0..6490f618e096 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -1415,7 +1415,7 @@ static bool __init determine_cpu_tsc_frequencies(bool early) static unsigned long __init get_loops_per_jiffy(void) { - unsigned long lpj = tsc_khz * KHZ; + u64 lpj = (u64)tsc_khz * KHZ; do_div(lpj, HZ); return lpj; From 9fe6299dde587788f245e9f7a5a1b296fad4e8c7 Mon Sep 17 00:00:00 2001 From: Jann Horn Date: Fri, 31 Aug 2018 21:41:51 +0200 Subject: [PATCH 0698/1762] x86/process: Don't mix user/kernel regs in 64bit __show_regs() When the kernel.print-fatal-signals sysctl has been enabled, a simple userspace crash will cause the kernel to write a crash dump that contains, among other things, the kernel gsbase into dmesg. As suggested by Andy, limit output to pt_regs, FS_BASE and KERNEL_GS_BASE in this case. This also moves the bitness-specific logic from show_regs() into process_{32,64}.c. Fixes: 45807a1df9f5 ("vdso: print fatal signals") Signed-off-by: Jann Horn Signed-off-by: Thomas Gleixner Cc: "H. Peter Anvin" Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Greg Kroah-Hartman Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180831194151.123586-1-jannh@google.com --- arch/x86/include/asm/kdebug.h | 12 +++++++++++- arch/x86/kernel/dumpstack.c | 11 +++-------- arch/x86/kernel/process_32.c | 4 ++-- arch/x86/kernel/process_64.c | 12 ++++++++++-- 4 files changed, 26 insertions(+), 13 deletions(-) diff --git a/arch/x86/include/asm/kdebug.h b/arch/x86/include/asm/kdebug.h index 395c9631e000..75f1e35e7c15 100644 --- a/arch/x86/include/asm/kdebug.h +++ b/arch/x86/include/asm/kdebug.h @@ -22,10 +22,20 @@ enum die_val { DIE_NMIUNKNOWN, }; +enum show_regs_mode { + SHOW_REGS_SHORT, + /* + * For when userspace crashed, but we don't think it's our fault, and + * therefore don't print kernel registers. + */ + SHOW_REGS_USER, + SHOW_REGS_ALL +}; + extern void die(const char *, struct pt_regs *,long); extern int __must_check __die(const char *, struct pt_regs *, long); extern void show_stack_regs(struct pt_regs *regs); -extern void __show_regs(struct pt_regs *regs, int all); +extern void __show_regs(struct pt_regs *regs, enum show_regs_mode); extern void show_iret_regs(struct pt_regs *regs); extern unsigned long oops_begin(void); extern void oops_end(unsigned long, struct pt_regs *, int signr); diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index f56895106ccf..2b5886401e5f 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -146,7 +146,7 @@ static void show_regs_if_on_stack(struct stack_info *info, struct pt_regs *regs, * they can be printed in the right context. */ if (!partial && on_stack(info, regs, sizeof(*regs))) { - __show_regs(regs, 0); + __show_regs(regs, SHOW_REGS_SHORT); } else if (partial && on_stack(info, (void *)regs + IRET_FRAME_OFFSET, IRET_FRAME_SIZE)) { @@ -344,7 +344,7 @@ void oops_end(unsigned long flags, struct pt_regs *regs, int signr) oops_exit(); /* Executive summary in case the oops scrolled away */ - __show_regs(&exec_summary_regs, true); + __show_regs(&exec_summary_regs, SHOW_REGS_ALL); if (!signr) return; @@ -407,14 +407,9 @@ void die(const char *str, struct pt_regs *regs, long err) void show_regs(struct pt_regs *regs) { - bool all = true; - show_regs_print_info(KERN_DEFAULT); - if (IS_ENABLED(CONFIG_X86_32)) - all = !user_mode(regs); - - __show_regs(regs, all); + __show_regs(regs, user_mode(regs) ? SHOW_REGS_USER : SHOW_REGS_ALL); /* * When in-kernel, we also print out the stack at the time of the fault.. diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index 2924fd447e61..5046a3c9dec2 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -59,7 +59,7 @@ #include #include -void __show_regs(struct pt_regs *regs, int all) +void __show_regs(struct pt_regs *regs, enum show_regs_mode mode) { unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L; unsigned long d0, d1, d2, d3, d6, d7; @@ -85,7 +85,7 @@ void __show_regs(struct pt_regs *regs, int all) printk(KERN_DEFAULT "DS: %04x ES: %04x FS: %04x GS: %04x SS: %04x EFLAGS: %08lx\n", (u16)regs->ds, (u16)regs->es, (u16)regs->fs, gs, ss, regs->flags); - if (!all) + if (mode != SHOW_REGS_ALL) return; cr0 = read_cr0(); diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index a451bc374b9b..ea5ea850348d 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -62,7 +62,7 @@ __visible DEFINE_PER_CPU(unsigned long, rsp_scratch); /* Prints also some state that isn't saved in the pt_regs */ -void __show_regs(struct pt_regs *regs, int all) +void __show_regs(struct pt_regs *regs, enum show_regs_mode mode) { unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L, fs, gs, shadowgs; unsigned long d0, d1, d2, d3, d6, d7; @@ -87,9 +87,17 @@ void __show_regs(struct pt_regs *regs, int all) printk(KERN_DEFAULT "R13: %016lx R14: %016lx R15: %016lx\n", regs->r13, regs->r14, regs->r15); - if (!all) + if (mode == SHOW_REGS_SHORT) return; + if (mode == SHOW_REGS_USER) { + rdmsrl(MSR_FS_BASE, fs); + rdmsrl(MSR_KERNEL_GS_BASE, shadowgs); + printk(KERN_DEFAULT "FS: %016lx GS: %016lx\n", + fs, shadowgs); + return; + } + asm("movl %%ds,%0" : "=r" (ds)); asm("movl %%cs,%0" : "=r" (cs)); asm("movl %%es,%0" : "=r" (es)); From 94cb82f594ed86be303398d6dfc7640a6f1d45d4 Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Sun, 12 Aug 2018 21:04:43 +0200 Subject: [PATCH 0699/1762] batman-adv: Prevent duplicated softif_vlan entry The function batadv_softif_vlan_get is responsible for adding new softif_vlan to the softif_vlan_list. It first checks whether the entry already is in the list or not. If it is, then the creation of a new entry is aborted. But the lock for the list is only held when the list is really modified. This could lead to duplicated entries because another context could create an entry with the same key between the check and the list manipulation. The check and the manipulation of the list must therefore be in the same locked code section. Fixes: 5d2c05b21337 ("batman-adv: add per VLAN interface attribute framework") Signed-off-by: Sven Eckelmann Signed-off-by: Simon Wunderlich --- net/batman-adv/soft-interface.c | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index 1485263a348b..626ddca332db 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -574,15 +574,20 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid) struct batadv_softif_vlan *vlan; int err; + spin_lock_bh(&bat_priv->softif_vlan_list_lock); + vlan = batadv_softif_vlan_get(bat_priv, vid); if (vlan) { batadv_softif_vlan_put(vlan); + spin_unlock_bh(&bat_priv->softif_vlan_list_lock); return -EEXIST; } vlan = kzalloc(sizeof(*vlan), GFP_ATOMIC); - if (!vlan) + if (!vlan) { + spin_unlock_bh(&bat_priv->softif_vlan_list_lock); return -ENOMEM; + } vlan->bat_priv = bat_priv; vlan->vid = vid; @@ -590,17 +595,23 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid) atomic_set(&vlan->ap_isolation, 0); - err = batadv_sysfs_add_vlan(bat_priv->soft_iface, vlan); - if (err) { - kfree(vlan); - return err; - } - - spin_lock_bh(&bat_priv->softif_vlan_list_lock); kref_get(&vlan->refcount); hlist_add_head_rcu(&vlan->list, &bat_priv->softif_vlan_list); spin_unlock_bh(&bat_priv->softif_vlan_list_lock); + /* batadv_sysfs_add_vlan cannot be in the spinlock section due to the + * sleeping behavior of the sysfs functions and the fs_reclaim lock + */ + err = batadv_sysfs_add_vlan(bat_priv->soft_iface, vlan); + if (err) { + /* ref for the function */ + batadv_softif_vlan_put(vlan); + + /* ref for the list */ + batadv_softif_vlan_put(vlan); + return err; + } + /* add a new TT local entry. This one will be marked with the NOPURGE * flag */ From e7136e48ffdfb9f37b0820f619380485eb407361 Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Sun, 12 Aug 2018 21:04:44 +0200 Subject: [PATCH 0700/1762] batman-adv: Prevent duplicated global TT entry The function batadv_tt_global_orig_entry_add is responsible for adding new tt_orig_list_entry to the orig_list. It first checks whether the entry already is in the list or not. If it is, then the creation of a new entry is aborted. But the lock for the list is only held when the list is really modified. This could lead to duplicated entries because another context could create an entry with the same key between the check and the list manipulation. The check and the manipulation of the list must therefore be in the same locked code section. Fixes: d657e621a0f5 ("batman-adv: add reference counting for type batadv_tt_orig_list_entry") Signed-off-by: Sven Eckelmann Signed-off-by: Simon Wunderlich --- net/batman-adv/translation-table.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index 12a2b7d21376..d21624c44665 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -1613,6 +1613,8 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global, { struct batadv_tt_orig_list_entry *orig_entry; + spin_lock_bh(&tt_global->list_lock); + orig_entry = batadv_tt_global_orig_entry_find(tt_global, orig_node); if (orig_entry) { /* refresh the ttvn: the current value could be a bogus one that @@ -1635,11 +1637,9 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global, orig_entry->flags = flags; kref_init(&orig_entry->refcount); - spin_lock_bh(&tt_global->list_lock); kref_get(&orig_entry->refcount); hlist_add_head_rcu(&orig_entry->list, &tt_global->orig_list); - spin_unlock_bh(&tt_global->list_lock); atomic_inc(&tt_global->orig_list_count); sync_flags: @@ -1647,6 +1647,8 @@ sync_flags: out: if (orig_entry) batadv_tt_orig_list_entry_put(orig_entry); + + spin_unlock_bh(&tt_global->list_lock); } /** From ae3cdc97dc10c7a3b31f297dab429bfb774c9ccb Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Sun, 12 Aug 2018 21:04:45 +0200 Subject: [PATCH 0701/1762] batman-adv: Prevent duplicated tvlv handler The function batadv_tvlv_handler_register is responsible for adding new tvlv_handler to the handler_list. It first checks whether the entry already is in the list or not. If it is, then the creation of a new entry is aborted. But the lock for the list is only held when the list is really modified. This could lead to duplicated entries because another context could create an entry with the same key between the check and the list manipulation. The check and the manipulation of the list must therefore be in the same locked code section. Fixes: ef26157747d4 ("batman-adv: tvlv - basic infrastructure") Signed-off-by: Sven Eckelmann Signed-off-by: Simon Wunderlich --- net/batman-adv/tvlv.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/net/batman-adv/tvlv.c b/net/batman-adv/tvlv.c index a637458205d1..40e69c9346d2 100644 --- a/net/batman-adv/tvlv.c +++ b/net/batman-adv/tvlv.c @@ -529,15 +529,20 @@ void batadv_tvlv_handler_register(struct batadv_priv *bat_priv, { struct batadv_tvlv_handler *tvlv_handler; + spin_lock_bh(&bat_priv->tvlv.handler_list_lock); + tvlv_handler = batadv_tvlv_handler_get(bat_priv, type, version); if (tvlv_handler) { + spin_unlock_bh(&bat_priv->tvlv.handler_list_lock); batadv_tvlv_handler_put(tvlv_handler); return; } tvlv_handler = kzalloc(sizeof(*tvlv_handler), GFP_ATOMIC); - if (!tvlv_handler) + if (!tvlv_handler) { + spin_unlock_bh(&bat_priv->tvlv.handler_list_lock); return; + } tvlv_handler->ogm_handler = optr; tvlv_handler->unicast_handler = uptr; @@ -547,7 +552,6 @@ void batadv_tvlv_handler_register(struct batadv_priv *bat_priv, kref_init(&tvlv_handler->refcount); INIT_HLIST_NODE(&tvlv_handler->list); - spin_lock_bh(&bat_priv->tvlv.handler_list_lock); kref_get(&tvlv_handler->refcount); hlist_add_head_rcu(&tvlv_handler->list, &bat_priv->tvlv.handler_list); spin_unlock_bh(&bat_priv->tvlv.handler_list_lock); From f8b7530aa0a1def79c93101216b5b17cf408a70a Mon Sep 17 00:00:00 2001 From: Neeraj Upadhyay Date: Wed, 5 Sep 2018 11:22:07 +0530 Subject: [PATCH 0702/1762] cpu/hotplug: Adjust misplaced smb() in cpuhp_thread_fun() The smp_mb() in cpuhp_thread_fun() is misplaced. It needs to be after the load of st->should_run to prevent reordering of the later load/stores w.r.t. the load of st->should_run. Fixes: 4dddfb5faa61 ("smp/hotplug: Rewrite AP state machine core") Signed-off-by: Neeraj Upadhyay Signed-off-by: Thomas Gleixner Acked-by: Peter Zijlstra (Intel) Cc: josh@joshtriplett.org Cc: peterz@infradead.org Cc: jiangshanlai@gmail.com Cc: dzickus@redhat.com Cc: brendan.jackman@arm.com Cc: malat@debian.org Cc: mojha@codeaurora.org Cc: sramana@codeaurora.org Cc: linux-arm-msm@vger.kernel.org Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/1536126727-11629-1-git-send-email-neeraju@codeaurora.org --- kernel/cpu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/cpu.c b/kernel/cpu.c index aa7fe85ad62e..eb4041f78073 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -607,15 +607,15 @@ static void cpuhp_thread_fun(unsigned int cpu) bool bringup = st->bringup; enum cpuhp_state state; + if (WARN_ON_ONCE(!st->should_run)) + return; + /* * ACQUIRE for the cpuhp_should_run() load of ->should_run. Ensures * that if we see ->should_run we also see the rest of the state. */ smp_mb(); - if (WARN_ON_ONCE(!st->should_run)) - return; - cpuhp_lock_acquire(bringup); if (st->single) { From 69fa6eb7d6a64801ea261025cce9723d9442d773 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 6 Sep 2018 15:21:38 +0200 Subject: [PATCH 0703/1762] cpu/hotplug: Prevent state corruption on error rollback When a teardown callback fails, the CPU hotplug code brings the CPU back to the previous state. The previous state becomes the new target state. The rollback happens in undo_cpu_down() which increments the state unconditionally even if the state is already the same as the target. As a consequence the next CPU hotplug operation will start at the wrong state. This is easily to observe when __cpu_disable() fails. Prevent the unconditional undo by checking the state vs. target before incrementing state and fix up the consequently wrong conditional in the unplug code which handles the failure of the final CPU take down on the control CPU side. Fixes: 4dddfb5faa61 ("smp/hotplug: Rewrite AP state machine core") Reported-by: Neeraj Upadhyay Signed-off-by: Thomas Gleixner Tested-by: Geert Uytterhoeven Tested-by: Sudeep Holla Tested-by: Neeraj Upadhyay Cc: josh@joshtriplett.org Cc: peterz@infradead.org Cc: jiangshanlai@gmail.com Cc: dzickus@redhat.com Cc: brendan.jackman@arm.com Cc: malat@debian.org Cc: sramana@codeaurora.org Cc: linux-arm-msm@vger.kernel.org Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1809051419580.1416@nanos.tec.linutronix.de ---- --- kernel/cpu.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/cpu.c b/kernel/cpu.c index eb4041f78073..0097acec1c71 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -916,7 +916,8 @@ static int cpuhp_down_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st, ret = cpuhp_invoke_callback(cpu, st->state, false, NULL, NULL); if (ret) { st->target = prev_state; - undo_cpu_down(cpu, st); + if (st->state < prev_state) + undo_cpu_down(cpu, st); break; } } @@ -969,7 +970,7 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen, * to do the further cleanups. */ ret = cpuhp_down_callbacks(cpu, st, target); - if (ret && st->state > CPUHP_TEARDOWN_CPU && st->state < prev_state) { + if (ret && st->state == CPUHP_TEARDOWN_CPU && st->state < prev_state) { cpuhp_reset_state(st, prev_state); __cpuhp_kick_ap(st); } From e058a4033240d30192124d6bf32b78e9a1f8975c Mon Sep 17 00:00:00 2001 From: Hiroyuki Yokoyama Date: Thu, 6 Sep 2018 22:28:33 +0900 Subject: [PATCH 0704/1762] ASoC: rsnd: Add device tree binding for r8a77990 This patch adds the device tree binding of the r8a77990 SoC. Signed-off-by: Hiroyuki Yokoyama Signed-off-by: Yoshihiro Kaneko Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/renesas,rsnd.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt index 8083f0d8f263..f4688c508be6 100644 --- a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt +++ b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt @@ -354,6 +354,7 @@ Required properties: - "renesas,rcar_sound-r8a7795" (R-Car H3) - "renesas,rcar_sound-r8a7796" (R-Car M3-W) - "renesas,rcar_sound-r8a77965" (R-Car M3-N) + - "renesas,rcar_sound-r8a77990" (R-Car E3) - reg : Should contain the register physical address. required register is SRU/ADG/SSI if generation1 From 8aaff15168cfbc7c8980fdb0e8a585f1afe56ec0 Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Fri, 24 Aug 2018 15:32:43 +0200 Subject: [PATCH 0705/1762] ceph: avoid a use-after-free in ceph_destroy_options() syzbot reported a use-after-free in ceph_destroy_options(), called from ceph_mount(). The problem was that create_fs_client() consumed the opt pointer on some errors, but not on all of them. Make sure it always consumes both libceph and ceph options. Reported-by: syzbot+8ab6f1042021b4eed062@syzkaller.appspotmail.com Signed-off-by: Ilya Dryomov Reviewed-by: "Yan, Zheng" --- fs/ceph/super.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/fs/ceph/super.c b/fs/ceph/super.c index 43ca3b763875..eab1359d0553 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -602,6 +602,8 @@ static int extra_mon_dispatch(struct ceph_client *client, struct ceph_msg *msg) /* * create a new fs client + * + * Success or not, this function consumes @fsopt and @opt. */ static struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt, struct ceph_options *opt) @@ -609,17 +611,20 @@ static struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt, struct ceph_fs_client *fsc; int page_count; size_t size; - int err = -ENOMEM; + int err; fsc = kzalloc(sizeof(*fsc), GFP_KERNEL); - if (!fsc) - return ERR_PTR(-ENOMEM); + if (!fsc) { + err = -ENOMEM; + goto fail; + } fsc->client = ceph_create_client(opt, fsc); if (IS_ERR(fsc->client)) { err = PTR_ERR(fsc->client); goto fail; } + opt = NULL; /* fsc->client now owns this */ fsc->client->extra_mon_dispatch = extra_mon_dispatch; fsc->client->osdc.abort_on_full = true; @@ -677,6 +682,9 @@ fail_client: ceph_destroy_client(fsc->client); fail: kfree(fsc); + if (opt) + ceph_destroy_options(opt); + destroy_mount_options(fsopt); return ERR_PTR(err); } @@ -1042,8 +1050,6 @@ static struct dentry *ceph_mount(struct file_system_type *fs_type, fsc = create_fs_client(fsopt, opt); if (IS_ERR(fsc)) { res = ERR_CAST(fsc); - destroy_mount_options(fsopt); - ceph_destroy_options(opt); goto out_final; } From eb3b2d6be4b5e1612827b986cca241c5d104fc41 Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Wed, 22 Aug 2018 17:11:27 +0200 Subject: [PATCH 0706/1762] rbd: factor out get_parent_info() In preparation for the new parent_get and parent_overlap_get class methods, factor out the fetching and decoding of parent data. As a side effect, we now decode all four fields in the "no parent" case. Signed-off-by: Ilya Dryomov Reviewed-by: Jason Dillaman --- drivers/block/rbd.c | 136 ++++++++++++++++++++++++++++---------------- 1 file changed, 87 insertions(+), 49 deletions(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 7915f3b03736..bec5a50c9890 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -4584,47 +4584,95 @@ static int rbd_dev_v2_features(struct rbd_device *rbd_dev) &rbd_dev->header.features); } +struct parent_image_info { + u64 pool_id; + const char *image_id; + u64 snap_id; + + u64 overlap; +}; + +/* + * The caller is responsible for @pii. + */ +static int __get_parent_info_legacy(struct rbd_device *rbd_dev, + struct page *req_page, + struct page *reply_page, + struct parent_image_info *pii) +{ + struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc; + size_t reply_len = PAGE_SIZE; + void *p, *end; + int ret; + + ret = ceph_osdc_call(osdc, &rbd_dev->header_oid, &rbd_dev->header_oloc, + "rbd", "get_parent", CEPH_OSD_FLAG_READ, + req_page, sizeof(u64), reply_page, &reply_len); + if (ret) + return ret; + + p = page_address(reply_page); + end = p + reply_len; + ceph_decode_64_safe(&p, end, pii->pool_id, e_inval); + pii->image_id = ceph_extract_encoded_string(&p, end, NULL, GFP_KERNEL); + if (IS_ERR(pii->image_id)) { + ret = PTR_ERR(pii->image_id); + pii->image_id = NULL; + return ret; + } + ceph_decode_64_safe(&p, end, pii->snap_id, e_inval); + ceph_decode_64_safe(&p, end, pii->overlap, e_inval); + + return 0; + +e_inval: + return -EINVAL; +} + +static int get_parent_info(struct rbd_device *rbd_dev, + struct parent_image_info *pii) +{ + struct page *req_page, *reply_page; + void *p; + int ret; + + req_page = alloc_page(GFP_KERNEL); + if (!req_page) + return -ENOMEM; + + reply_page = alloc_page(GFP_KERNEL); + if (!reply_page) { + __free_page(req_page); + return -ENOMEM; + } + + p = page_address(req_page); + ceph_encode_64(&p, rbd_dev->spec->snap_id); + ret = __get_parent_info_legacy(rbd_dev, req_page, reply_page, pii); + + __free_page(req_page); + __free_page(reply_page); + return ret; +} + static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev) { struct rbd_spec *parent_spec; - size_t size; - void *reply_buf = NULL; - __le64 snapid; - void *p; - void *end; - u64 pool_id; - char *image_id; - u64 snap_id; - u64 overlap; + struct parent_image_info pii = { 0 }; int ret; parent_spec = rbd_spec_alloc(); if (!parent_spec) return -ENOMEM; - size = sizeof (__le64) + /* pool_id */ - sizeof (__le32) + RBD_IMAGE_ID_LEN_MAX + /* image_id */ - sizeof (__le64) + /* snap_id */ - sizeof (__le64); /* overlap */ - reply_buf = kmalloc(size, GFP_KERNEL); - if (!reply_buf) { - ret = -ENOMEM; - goto out_err; - } - - snapid = cpu_to_le64(rbd_dev->spec->snap_id); - ret = rbd_obj_method_sync(rbd_dev, &rbd_dev->header_oid, - &rbd_dev->header_oloc, "get_parent", - &snapid, sizeof(snapid), reply_buf, size); - dout("%s: rbd_obj_method_sync returned %d\n", __func__, ret); - if (ret < 0) + ret = get_parent_info(rbd_dev, &pii); + if (ret) goto out_err; - p = reply_buf; - end = reply_buf + ret; - ret = -ERANGE; - ceph_decode_64_safe(&p, end, pool_id, out_err); - if (pool_id == CEPH_NOPOOL) { + dout("%s pool_id %llu image_id %s snap_id %llu overlap %llu\n", + __func__, pii.pool_id, pii.image_id, pii.snap_id, pii.overlap); + + if (pii.pool_id == CEPH_NOPOOL) { /* * Either the parent never existed, or we have * record of it but the image got flattened so it no @@ -4647,29 +4695,22 @@ static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev) /* The ceph file layout needs to fit pool id in 32 bits */ ret = -EIO; - if (pool_id > (u64)U32_MAX) { + if (pii.pool_id > (u64)U32_MAX) { rbd_warn(NULL, "parent pool id too large (%llu > %u)", - (unsigned long long)pool_id, U32_MAX); + (unsigned long long)pii.pool_id, U32_MAX); goto out_err; } - image_id = ceph_extract_encoded_string(&p, end, NULL, GFP_KERNEL); - if (IS_ERR(image_id)) { - ret = PTR_ERR(image_id); - goto out_err; - } - ceph_decode_64_safe(&p, end, snap_id, out_err); - ceph_decode_64_safe(&p, end, overlap, out_err); - /* * The parent won't change (except when the clone is * flattened, already handled that). So we only need to * record the parent spec we have not already done so. */ if (!rbd_dev->parent_spec) { - parent_spec->pool_id = pool_id; - parent_spec->image_id = image_id; - parent_spec->snap_id = snap_id; + parent_spec->pool_id = pii.pool_id; + parent_spec->image_id = pii.image_id; + pii.image_id = NULL; + parent_spec->snap_id = pii.snap_id; /* TODO: support cloning across namespaces */ if (rbd_dev->spec->pool_ns) { @@ -4683,15 +4724,13 @@ static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev) rbd_dev->parent_spec = parent_spec; parent_spec = NULL; /* rbd_dev now owns this */ - } else { - kfree(image_id); } /* * We always update the parent overlap. If it's zero we issue * a warning, as we will proceed as if there was no parent. */ - if (!overlap) { + if (!pii.overlap) { if (parent_spec) { /* refresh, careful to warn just once */ if (rbd_dev->parent_overlap) @@ -4702,14 +4741,13 @@ static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev) rbd_warn(rbd_dev, "clone is standalone (overlap 0)"); } } - rbd_dev->parent_overlap = overlap; + rbd_dev->parent_overlap = pii.overlap; out: ret = 0; out_err: - kfree(reply_buf); + kfree(pii.image_id); rbd_spec_put(parent_spec); - return ret; } From e92c0eaf754310f9f31e9229a3f7274a67478f82 Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Wed, 22 Aug 2018 17:26:10 +0200 Subject: [PATCH 0707/1762] rbd: support cloning across namespaces If parent_get class method is not supported by the OSDs, fall back to the legacy class method and assume that the parent is in the default (i.e. "") namespace. The "use the child's image namespace" workaround is no longer needed because creating images within namespaces will require parent_get aware OSDs. Signed-off-by: Ilya Dryomov Reviewed-by: Jason Dillaman --- drivers/block/rbd.c | 111 ++++++++++++++++++++++++++++++++++++++------ 1 file changed, 97 insertions(+), 14 deletions(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index bec5a50c9890..73ed5f3a862d 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -4207,11 +4207,13 @@ static ssize_t rbd_parent_show(struct device *dev, count += sprintf(&buf[count], "%s" "pool_id %llu\npool_name %s\n" + "pool_ns %s\n" "image_id %s\nimage_name %s\n" "snap_id %llu\nsnap_name %s\n" "overlap %llu\n", !count ? "" : "\n", /* first? */ spec->pool_id, spec->pool_name, + spec->pool_ns ?: "", spec->image_id, spec->image_name ?: "(unknown)", spec->snap_id, spec->snap_name, rbd_dev->parent_overlap); @@ -4586,12 +4588,89 @@ static int rbd_dev_v2_features(struct rbd_device *rbd_dev) struct parent_image_info { u64 pool_id; + const char *pool_ns; const char *image_id; u64 snap_id; + bool has_overlap; u64 overlap; }; +/* + * The caller is responsible for @pii. + */ +static int decode_parent_image_spec(void **p, void *end, + struct parent_image_info *pii) +{ + u8 struct_v; + u32 struct_len; + int ret; + + ret = ceph_start_decoding(p, end, 1, "ParentImageSpec", + &struct_v, &struct_len); + if (ret) + return ret; + + ceph_decode_64_safe(p, end, pii->pool_id, e_inval); + pii->pool_ns = ceph_extract_encoded_string(p, end, NULL, GFP_KERNEL); + if (IS_ERR(pii->pool_ns)) { + ret = PTR_ERR(pii->pool_ns); + pii->pool_ns = NULL; + return ret; + } + pii->image_id = ceph_extract_encoded_string(p, end, NULL, GFP_KERNEL); + if (IS_ERR(pii->image_id)) { + ret = PTR_ERR(pii->image_id); + pii->image_id = NULL; + return ret; + } + ceph_decode_64_safe(p, end, pii->snap_id, e_inval); + return 0; + +e_inval: + return -EINVAL; +} + +static int __get_parent_info(struct rbd_device *rbd_dev, + struct page *req_page, + struct page *reply_page, + struct parent_image_info *pii) +{ + struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc; + size_t reply_len = PAGE_SIZE; + void *p, *end; + int ret; + + ret = ceph_osdc_call(osdc, &rbd_dev->header_oid, &rbd_dev->header_oloc, + "rbd", "parent_get", CEPH_OSD_FLAG_READ, + req_page, sizeof(u64), reply_page, &reply_len); + if (ret) + return ret == -EOPNOTSUPP ? 1 : ret; + + p = page_address(reply_page); + end = p + reply_len; + ret = decode_parent_image_spec(&p, end, pii); + if (ret) + return ret; + + ret = ceph_osdc_call(osdc, &rbd_dev->header_oid, &rbd_dev->header_oloc, + "rbd", "parent_overlap_get", CEPH_OSD_FLAG_READ, + req_page, sizeof(u64), reply_page, &reply_len); + if (ret) + return ret; + + p = page_address(reply_page); + end = p + reply_len; + ceph_decode_8_safe(&p, end, pii->has_overlap, e_inval); + if (pii->has_overlap) + ceph_decode_64_safe(&p, end, pii->overlap, e_inval); + + return 0; + +e_inval: + return -EINVAL; +} + /* * The caller is responsible for @pii. */ @@ -4621,6 +4700,7 @@ static int __get_parent_info_legacy(struct rbd_device *rbd_dev, return ret; } ceph_decode_64_safe(&p, end, pii->snap_id, e_inval); + pii->has_overlap = true; ceph_decode_64_safe(&p, end, pii->overlap, e_inval); return 0; @@ -4648,7 +4728,10 @@ static int get_parent_info(struct rbd_device *rbd_dev, p = page_address(req_page); ceph_encode_64(&p, rbd_dev->spec->snap_id); - ret = __get_parent_info_legacy(rbd_dev, req_page, reply_page, pii); + ret = __get_parent_info(rbd_dev, req_page, reply_page, pii); + if (ret > 0) + ret = __get_parent_info_legacy(rbd_dev, req_page, reply_page, + pii); __free_page(req_page); __free_page(reply_page); @@ -4669,10 +4752,11 @@ static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev) if (ret) goto out_err; - dout("%s pool_id %llu image_id %s snap_id %llu overlap %llu\n", - __func__, pii.pool_id, pii.image_id, pii.snap_id, pii.overlap); + dout("%s pool_id %llu pool_ns %s image_id %s snap_id %llu has_overlap %d overlap %llu\n", + __func__, pii.pool_id, pii.pool_ns, pii.image_id, pii.snap_id, + pii.has_overlap, pii.overlap); - if (pii.pool_id == CEPH_NOPOOL) { + if (pii.pool_id == CEPH_NOPOOL || !pii.has_overlap) { /* * Either the parent never existed, or we have * record of it but the image got flattened so it no @@ -4681,6 +4765,10 @@ static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev) * overlap to 0. The effect of this is that all new * requests will be treated as if the image had no * parent. + * + * If !pii.has_overlap, the parent image spec is not + * applicable. It's there to avoid duplication in each + * snapshot record. */ if (rbd_dev->parent_overlap) { rbd_dev->parent_overlap = 0; @@ -4708,20 +4796,14 @@ static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev) */ if (!rbd_dev->parent_spec) { parent_spec->pool_id = pii.pool_id; + if (pii.pool_ns && *pii.pool_ns) { + parent_spec->pool_ns = pii.pool_ns; + pii.pool_ns = NULL; + } parent_spec->image_id = pii.image_id; pii.image_id = NULL; parent_spec->snap_id = pii.snap_id; - /* TODO: support cloning across namespaces */ - if (rbd_dev->spec->pool_ns) { - parent_spec->pool_ns = kstrdup(rbd_dev->spec->pool_ns, - GFP_KERNEL); - if (!parent_spec->pool_ns) { - ret = -ENOMEM; - goto out_err; - } - } - rbd_dev->parent_spec = parent_spec; parent_spec = NULL; /* rbd_dev now owns this */ } @@ -4746,6 +4828,7 @@ static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev) out: ret = 0; out_err: + kfree(pii.pool_ns); kfree(pii.image_id); rbd_spec_put(parent_spec); return ret; From 52cf93e63ee672a92f349edc6ddad86ec8808fd8 Mon Sep 17 00:00:00 2001 From: Kai-Heng Feng Date: Thu, 6 Sep 2018 10:55:18 +0800 Subject: [PATCH 0708/1762] HID: i2c-hid: Don't reset device upon system resume Raydium touchscreen triggers interrupt storm after system-wide suspend: [ 179.085033] i2c_hid i2c-CUST0000:00: i2c_hid_get_input: incomplete report (58/65535) According to Raydium, Windows driver does not reset the device after system resume. The HID over I2C spec does specify a reset should be used at intialization, but it doesn't specify if reset is required for system suspend. Tested this patch on other i2c-hid touchpanels I have and those touchpanels do work after S3 without doing reset. If any regression happens to other touchpanel vendors, we can use quirk for Raydium devices. There's still one device uses I2C_HID_QUIRK_RESEND_REPORT_DESCR so keep it there. Cc: Aaron Ma Cc: AceLan Kao Signed-off-by: Kai-Heng Feng Reviewed-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-ids.h | 4 ---- drivers/hid/i2c-hid/i2c-hid.c | 13 +++++++------ 2 files changed, 7 insertions(+), 10 deletions(-) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 19a66ceca217..5146ee029db4 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -530,10 +530,6 @@ #define I2C_VENDOR_ID_HANTICK 0x0911 #define I2C_PRODUCT_ID_HANTICK_5288 0x5288 -#define I2C_VENDOR_ID_RAYD 0x2386 -#define I2C_PRODUCT_ID_RAYD_3118 0x3118 -#define I2C_PRODUCT_ID_RAYD_4B33 0x4B33 - #define USB_VENDOR_ID_HANWANG 0x0b57 #define USB_DEVICE_ID_HANWANG_TABLET_FIRST 0x5000 #define USB_DEVICE_ID_HANWANG_TABLET_LAST 0x8fff diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index 57126f6837bb..f3076659361a 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -170,12 +170,8 @@ static const struct i2c_hid_quirks { I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV }, { I2C_VENDOR_ID_HANTICK, I2C_PRODUCT_ID_HANTICK_5288, I2C_HID_QUIRK_NO_IRQ_AFTER_RESET }, - { I2C_VENDOR_ID_RAYD, I2C_PRODUCT_ID_RAYD_3118, - I2C_HID_QUIRK_RESEND_REPORT_DESCR }, { USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS10FB_TOUCH, I2C_HID_QUIRK_RESEND_REPORT_DESCR }, - { I2C_VENDOR_ID_RAYD, I2C_PRODUCT_ID_RAYD_4B33, - I2C_HID_QUIRK_RESEND_REPORT_DESCR }, { 0, 0 } }; @@ -1237,11 +1233,16 @@ static int i2c_hid_resume(struct device *dev) pm_runtime_enable(dev); enable_irq(client->irq); - ret = i2c_hid_hwreset(client); + + /* Instead of resetting device, simply powers the device on. This + * solves "incomplete reports" on Raydium devices 2386:3118 and + * 2386:4B33 + */ + ret = i2c_hid_set_power(client, I2C_HID_PWR_ON); if (ret) return ret; - /* RAYDIUM device (2386:3118) need to re-send report descr cmd + /* Some devices need to re-send report descr cmd * after resume, after this it will be back normal. * otherwise it issues too many incomplete reports. */ From d1c392c9e2a301f38998a353f467f76414e38725 Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (VMware)" Date: Wed, 5 Sep 2018 16:29:49 -0400 Subject: [PATCH 0709/1762] printk/tracing: Do not trace printk_nmi_enter() I hit the following splat in my tests: ------------[ cut here ]------------ IRQs not enabled as expected WARNING: CPU: 3 PID: 0 at kernel/time/tick-sched.c:982 tick_nohz_idle_enter+0x44/0x8c Modules linked in: ip6t_REJECT nf_reject_ipv6 ip6table_filter ip6_tables ipv6 CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.19.0-rc2-test+ #2 Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014 EIP: tick_nohz_idle_enter+0x44/0x8c Code: ec 05 00 00 00 75 26 83 b8 c0 05 00 00 00 75 1d 80 3d d0 36 3e c1 00 75 14 68 94 63 12 c1 c6 05 d0 36 3e c1 01 e8 04 ee f8 ff <0f> 0b 58 fa bb a0 e5 66 c1 e8 25 0f 04 00 64 03 1d 28 31 52 c1 8b EAX: 0000001c EBX: f26e7f8c ECX: 00000006 EDX: 00000007 ESI: f26dd1c0 EDI: 00000000 EBP: f26e7f40 ESP: f26e7f38 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010296 CR0: 80050033 CR2: 0813c6b0 CR3: 2f342000 CR4: 001406f0 Call Trace: do_idle+0x33/0x202 cpu_startup_entry+0x61/0x63 start_secondary+0x18e/0x1ed startup_32_smp+0x164/0x168 irq event stamp: 18773830 hardirqs last enabled at (18773829): [] trace_hardirqs_on_thunk+0xc/0x10 hardirqs last disabled at (18773830): [] trace_hardirqs_off_thunk+0xc/0x10 softirqs last enabled at (18773824): [] __do_softirq+0x25f/0x2bf softirqs last disabled at (18773767): [] call_on_stack+0x45/0x4b ---[ end trace b7c64aa79e17954a ]--- After a bit of debugging, I found what was happening. This would trigger when performing "perf" with a high NMI interrupt rate, while enabling and disabling function tracer. Ftrace uses breakpoints to convert the nops at the start of functions to calls to the function trampolines. The breakpoint traps disable interrupts and this makes calls into lockdep via the trace_hardirqs_off_thunk in the entry.S code. What happens is the following: do_idle { [interrupts enabled] [interrupts disabled] TRACE_IRQS_OFF [lockdep says irqs off] [...] TRACE_IRQS_IRET test if pt_regs say return to interrupts enabled [yes] TRACE_IRQS_ON [lockdep says irqs are on] nmi_enter() { printk_nmi_enter() [traced by ftrace] [ hit ftrace breakpoint ] TRACE_IRQS_OFF [lockdep says irqs off] [...] TRACE_IRQS_IRET [return from breakpoint] test if pt_regs say interrupts enabled [no] [iret back to interrupt] [iret back to code] tick_nohz_idle_enter() { lockdep_assert_irqs_enabled() [lockdep say no!] Although interrupts are indeed enabled, lockdep thinks it is not, and since we now do asserts via lockdep, it gives a false warning. The issue here is that printk_nmi_enter() is called before lockdep_off(), which disables lockdep (for this reason) in NMIs. By simply not allowing ftrace to see printk_nmi_enter() (via notrace annotation) we keep lockdep from getting confused. Cc: stable@vger.kernel.org Fixes: 42a0bb3f71383 ("printk/nmi: generic solution for safe printk in NMI") Acked-by: Sergey Senozhatsky Acked-by: Petr Mladek Signed-off-by: Steven Rostedt (VMware) --- kernel/printk/printk_safe.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/printk/printk_safe.c b/kernel/printk/printk_safe.c index a0a74c533e4b..0913b4d385de 100644 --- a/kernel/printk/printk_safe.c +++ b/kernel/printk/printk_safe.c @@ -306,12 +306,12 @@ static __printf(1, 0) int vprintk_nmi(const char *fmt, va_list args) return printk_safe_log_store(s, fmt, args); } -void printk_nmi_enter(void) +void notrace printk_nmi_enter(void) { this_cpu_or(printk_context, PRINTK_NMI_CONTEXT_MASK); } -void printk_nmi_exit(void) +void notrace printk_nmi_exit(void) { this_cpu_and(printk_context, ~PRINTK_NMI_CONTEXT_MASK); } From 96d529bac562574600eda85726fcfa3eef6dde8e Mon Sep 17 00:00:00 2001 From: Sudeep Holla Date: Thu, 6 Sep 2018 16:10:39 +0100 Subject: [PATCH 0710/1762] firmware: arm_scmi: fix divide by zero when sustained_perf_level is zero Firmware can provide zero as values for sustained performance level and corresponding sustained frequency in kHz in order to hide the actual frequencies and provide only abstract values. It may endup with divide by zero scenario resulting in kernel panic. Let's set the multiplication factor to one if either one or both of them (sustained_perf_level and sustained_freq) are set to zero. Fixes: a9e3fbfaa0ff ("firmware: arm_scmi: add initial support for performance protocol") Reported-by: Ionela Voinescu Signed-off-by: Sudeep Holla Signed-off-by: Olof Johansson --- drivers/firmware/arm_scmi/perf.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c index 721e6c57beae..64342944d917 100644 --- a/drivers/firmware/arm_scmi/perf.c +++ b/drivers/firmware/arm_scmi/perf.c @@ -166,7 +166,13 @@ scmi_perf_domain_attributes_get(const struct scmi_handle *handle, u32 domain, le32_to_cpu(attr->sustained_freq_khz); dom_info->sustained_perf_level = le32_to_cpu(attr->sustained_perf_level); - dom_info->mult_factor = (dom_info->sustained_freq_khz * 1000) / + if (!dom_info->sustained_freq_khz || + !dom_info->sustained_perf_level) + /* CPUFreq converts to kHz, hence default 1000 */ + dom_info->mult_factor = 1000; + else + dom_info->mult_factor = + (dom_info->sustained_freq_khz * 1000) / dom_info->sustained_perf_level; memcpy(dom_info->name, attr->name, SCMI_MAX_STR_SIZE); } From fac880c7d074fdfca874114b5c47b36aa034e4ee Mon Sep 17 00:00:00 2001 From: Mark Rutland Date: Wed, 5 Sep 2018 17:38:57 +0100 Subject: [PATCH 0711/1762] arm64: fix erroneous warnings in page freeing functions In pmd_free_pte_page() and pud_free_pmd_page() we try to warn if they hit a present non-table entry. In both cases we'll warn for non-present entries, as the VM_WARN_ON() only checks the entry is not a table entry. This has been observed to result in warnings when booting a v4.19-rc2 kernel under qemu. Fix this by bailing out earlier for non-present entries. Fixes: ec28bb9c9b0826d7 ("arm64: Implement page table free interfaces") Signed-off-by: Mark Rutland Cc: Will Deacon Cc: Catalin Marinas Signed-off-by: Will Deacon --- arch/arm64/mm/mmu.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 65f86271f02b..8080c9f489c3 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -985,8 +985,9 @@ int pmd_free_pte_page(pmd_t *pmdp, unsigned long addr) pmd = READ_ONCE(*pmdp); - /* No-op for empty entry and WARN_ON for valid entry */ - if (!pmd_present(pmd) || !pmd_table(pmd)) { + if (!pmd_present(pmd)) + return 1; + if (!pmd_table(pmd)) { VM_WARN_ON(!pmd_table(pmd)); return 1; } @@ -1007,8 +1008,9 @@ int pud_free_pmd_page(pud_t *pudp, unsigned long addr) pud = READ_ONCE(*pudp); - /* No-op for empty entry and WARN_ON for valid entry */ - if (!pud_present(pud) || !pud_table(pud)) { + if (!pud_present(pud)) + return 1; + if (!pud_table(pud)) { VM_WARN_ON(!pud_table(pud)); return 1; } From 6b45a2b1c0bc2aec84d1c56a1976ca9c8a621ecb Mon Sep 17 00:00:00 2001 From: Bartosz Golaszewski Date: Thu, 6 Sep 2018 14:12:19 +0200 Subject: [PATCH 0712/1762] memory: ti-aemif: fix a potential NULL-pointer dereference Platform data pointer may be NULL. We check it everywhere but in one place. Fix it. Fixes: 8af70cd2ca50 ("memory: aemif: add support for board files") Reported-by: Dan Carpenter Signed-off-by: Bartosz Golaszewski Cc: stable@vger.kernel.org Signed-off-by: Olof Johansson --- drivers/memory/ti-aemif.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/memory/ti-aemif.c b/drivers/memory/ti-aemif.c index 31112f622b88..475e5b3790ed 100644 --- a/drivers/memory/ti-aemif.c +++ b/drivers/memory/ti-aemif.c @@ -411,7 +411,7 @@ static int aemif_probe(struct platform_device *pdev) if (ret < 0) goto error; } - } else { + } else if (pdata) { for (i = 0; i < pdata->num_sub_devices; i++) { pdata->sub_devices[i].dev.parent = dev; ret = platform_device_register(&pdata->sub_devices[i]); From 432061b3da64e488be3403124a72a9250bbe96d4 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Wed, 5 Sep 2018 09:17:45 -0400 Subject: [PATCH 0713/1762] dm: disable CRYPTO_TFM_REQ_MAY_SLEEP to fix a GFP_KERNEL recursion deadlock There's a XFS on dm-crypt deadlock, recursing back to itself due to the crypto subsystems use of GFP_KERNEL, reported here: https://bugzilla.kernel.org/show_bug.cgi?id=200835 * dm-crypt calls crypt_convert in xts mode * init_crypt from xts.c calls kmalloc(GFP_KERNEL) * kmalloc(GFP_KERNEL) recurses into the XFS filesystem, the filesystem tries to submit some bios and wait for them, causing a deadlock Fix this by updating both the DM crypt and integrity targets to no longer use the CRYPTO_TFM_REQ_MAY_SLEEP flag, which will change the crypto allocations from GFP_KERNEL to GFP_ATOMIC, therefore they can't recurse into a filesystem. A GFP_ATOMIC allocation can fail, but init_crypt() in xts.c handles the allocation failure gracefully - it will fall back to preallocated buffer if the allocation fails. The crypto API maintainer says that the crypto API only needs to allocate memory when dealing with unaligned buffers and therefore turning CRYPTO_TFM_REQ_MAY_SLEEP off is safe (see this discussion: https://www.redhat.com/archives/dm-devel/2018-August/msg00195.html ) Cc: stable@vger.kernel.org Signed-off-by: Mikulas Patocka Signed-off-by: Mike Snitzer --- drivers/md/dm-crypt.c | 10 +++++----- drivers/md/dm-integrity.c | 4 ++-- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index f266c81f396f..0481223b1deb 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -332,7 +332,7 @@ static int crypt_iv_essiv_init(struct crypt_config *cc) int err; desc->tfm = essiv->hash_tfm; - desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP; + desc->flags = 0; err = crypto_shash_digest(desc, cc->key, cc->key_size, essiv->salt); shash_desc_zero(desc); @@ -606,7 +606,7 @@ static int crypt_iv_lmk_one(struct crypt_config *cc, u8 *iv, int i, r; desc->tfm = lmk->hash_tfm; - desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP; + desc->flags = 0; r = crypto_shash_init(desc); if (r) @@ -768,7 +768,7 @@ static int crypt_iv_tcw_whitening(struct crypt_config *cc, /* calculate crc32 for every 32bit part and xor it */ desc->tfm = tcw->crc32_tfm; - desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP; + desc->flags = 0; for (i = 0; i < 4; i++) { r = crypto_shash_init(desc); if (r) @@ -1251,7 +1251,7 @@ static void crypt_alloc_req_skcipher(struct crypt_config *cc, * requests if driver request queue is full. */ skcipher_request_set_callback(ctx->r.req, - CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, + CRYPTO_TFM_REQ_MAY_BACKLOG, kcryptd_async_done, dmreq_of_req(cc, ctx->r.req)); } @@ -1268,7 +1268,7 @@ static void crypt_alloc_req_aead(struct crypt_config *cc, * requests if driver request queue is full. */ aead_request_set_callback(ctx->r.req_aead, - CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, + CRYPTO_TFM_REQ_MAY_BACKLOG, kcryptd_async_done, dmreq_of_req(cc, ctx->r.req_aead)); } diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index 378878599466..89ccb64342de 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -532,7 +532,7 @@ static void section_mac(struct dm_integrity_c *ic, unsigned section, __u8 result unsigned j, size; desc->tfm = ic->journal_mac; - desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP; + desc->flags = 0; r = crypto_shash_init(desc); if (unlikely(r)) { @@ -676,7 +676,7 @@ static void complete_journal_encrypt(struct crypto_async_request *req, int err) static bool do_crypt(bool encrypt, struct skcipher_request *req, struct journal_completion *comp) { int r; - skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, + skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, complete_journal_encrypt, comp); if (likely(encrypt)) r = crypto_skcipher_encrypt(req); From d5274b3cd6a814ccb2f56d81ee87cbbf51bd4cf7 Mon Sep 17 00:00:00 2001 From: Konstantin Khlebnikov Date: Thu, 6 Sep 2018 11:05:44 +0300 Subject: [PATCH 0714/1762] block: bfq: swap puts in bfqg_and_blkg_put Fix trivial use-after-free. This could be last reference to bfqg. Fixes: 8f9bebc33dd7 ("block, bfq: access and cache blkg data only when safe") Acked-by: Paolo Valente Signed-off-by: Konstantin Khlebnikov Signed-off-by: Jens Axboe --- block/bfq-cgroup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c index 58c6efa9f9a9..9fe5952d117d 100644 --- a/block/bfq-cgroup.c +++ b/block/bfq-cgroup.c @@ -275,9 +275,9 @@ static void bfqg_and_blkg_get(struct bfq_group *bfqg) void bfqg_and_blkg_put(struct bfq_group *bfqg) { - bfqg_put(bfqg); - blkg_put(bfqg_to_blkg(bfqg)); + + bfqg_put(bfqg); } /* @stats = 0 */ From 38b0bd0cda07d34ad6f145fce675ead74739c44e Mon Sep 17 00:00:00 2001 From: Heinz Mauelshagen Date: Thu, 6 Sep 2018 18:33:38 +0200 Subject: [PATCH 0715/1762] dm raid: fix reshape race on small devices Loading a new mapping table, the dm-raid target's constructor retrieves the volatile reshaping state from the raid superblocks. When the new table is activated in a following resume, the actual reshape position is retrieved. The reshape driven by the previous mapping can already have finished on small and/or fast devices thus updating raid superblocks about the new raid layout. This causes the actual array state (e.g. stripe size reshape finished) to be inconsistent with the one in the new mapping, causing hangs with left behind devices. This race does not occur with usual raid device sizes but with small ones (e.g. those created by the lvm2 test suite). Fix by no longer transferring stale/inconsistent raid_set state during preresume. Signed-off-by: Heinz Mauelshagen Signed-off-by: Mike Snitzer --- drivers/md/dm-raid.c | 48 +------------------------------------------- 1 file changed, 1 insertion(+), 47 deletions(-) diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index cae689de75fd..d8406e0b4540 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -29,9 +29,6 @@ */ #define MIN_RAID456_JOURNAL_SPACE (4*2048) -/* Global list of all raid sets */ -static LIST_HEAD(raid_sets); - static bool devices_handle_discard_safely = false; /* @@ -227,7 +224,6 @@ struct rs_layout { struct raid_set { struct dm_target *ti; - struct list_head list; uint32_t stripe_cache_entries; unsigned long ctr_flags; @@ -273,19 +269,6 @@ static void rs_config_restore(struct raid_set *rs, struct rs_layout *l) mddev->new_chunk_sectors = l->new_chunk_sectors; } -/* Find any raid_set in active slot for @rs on global list */ -static struct raid_set *rs_find_active(struct raid_set *rs) -{ - struct raid_set *r; - struct mapped_device *md = dm_table_get_md(rs->ti->table); - - list_for_each_entry(r, &raid_sets, list) - if (r != rs && dm_table_get_md(r->ti->table) == md) - return r; - - return NULL; -} - /* raid10 algorithms (i.e. formats) */ #define ALGORITHM_RAID10_DEFAULT 0 #define ALGORITHM_RAID10_NEAR 1 @@ -764,7 +747,6 @@ static struct raid_set *raid_set_alloc(struct dm_target *ti, struct raid_type *r mddev_init(&rs->md); - INIT_LIST_HEAD(&rs->list); rs->raid_disks = raid_devs; rs->delta_disks = 0; @@ -782,9 +764,6 @@ static struct raid_set *raid_set_alloc(struct dm_target *ti, struct raid_type *r for (i = 0; i < raid_devs; i++) md_rdev_init(&rs->dev[i].rdev); - /* Add @rs to global list. */ - list_add(&rs->list, &raid_sets); - /* * Remaining items to be initialized by further RAID params: * rs->md.persistent @@ -797,7 +776,7 @@ static struct raid_set *raid_set_alloc(struct dm_target *ti, struct raid_type *r return rs; } -/* Free all @rs allocations and remove it from global list. */ +/* Free all @rs allocations */ static void raid_set_free(struct raid_set *rs) { int i; @@ -815,8 +794,6 @@ static void raid_set_free(struct raid_set *rs) dm_put_device(rs->ti, rs->dev[i].data_dev); } - list_del(&rs->list); - kfree(rs); } @@ -3947,29 +3924,6 @@ static int raid_preresume(struct dm_target *ti) if (test_and_set_bit(RT_FLAG_RS_PRERESUMED, &rs->runtime_flags)) return 0; - if (!test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags)) { - struct raid_set *rs_active = rs_find_active(rs); - - if (rs_active) { - /* - * In case no rebuilds have been requested - * and an active table slot exists, copy - * current resynchonization completed and - * reshape position pointers across from - * suspended raid set in the active slot. - * - * This resumes the new mapping at current - * offsets to continue recover/reshape without - * necessarily redoing a raid set partially or - * causing data corruption in case of a reshape. - */ - if (rs_active->md.curr_resync_completed != MaxSector) - mddev->curr_resync_completed = rs_active->md.curr_resync_completed; - if (rs_active->md.reshape_position != MaxSector) - mddev->reshape_position = rs_active->md.reshape_position; - } - } - /* * The superblocks need to be updated on disk if the * array is new or new devices got added (thus zeroed From 7035c568999d6774ff35459a0280eb33e0207168 Mon Sep 17 00:00:00 2001 From: Lei Yang Date: Thu, 6 Sep 2018 13:47:23 +0800 Subject: [PATCH 0716/1762] cgroup: kselftests: add test_core to .gitignore Update .gitignore file. Signed-off-by: Lei Yang Signed-off-by: Shuah Khan (Samsung OSG) --- tools/testing/selftests/cgroup/.gitignore | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/cgroup/.gitignore b/tools/testing/selftests/cgroup/.gitignore index 95eb3a53c381..adacda50a4b2 100644 --- a/tools/testing/selftests/cgroup/.gitignore +++ b/tools/testing/selftests/cgroup/.gitignore @@ -1 +1,2 @@ test_memcontrol +test_core From ef439d49e0bfb26cd5f03c88b4cb7cc9073ed30c Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Thu, 6 Sep 2018 11:19:20 -0700 Subject: [PATCH 0717/1762] xtensa: ISS: don't allocate memory in platform_setup Memory allocator is not initialized at that point yet, use static array instead. Cc: stable@vger.kernel.org Signed-off-by: Max Filippov --- arch/xtensa/platforms/iss/setup.c | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) diff --git a/arch/xtensa/platforms/iss/setup.c b/arch/xtensa/platforms/iss/setup.c index f4bbb28026f8..58709e89a8ed 100644 --- a/arch/xtensa/platforms/iss/setup.c +++ b/arch/xtensa/platforms/iss/setup.c @@ -78,23 +78,28 @@ static struct notifier_block iss_panic_block = { void __init platform_setup(char **p_cmdline) { + static void *argv[COMMAND_LINE_SIZE / sizeof(void *)] __initdata; + static char cmdline[COMMAND_LINE_SIZE] __initdata; int argc = simc_argc(); int argv_size = simc_argv_size(); if (argc > 1) { - void **argv = alloc_bootmem(argv_size); - char *cmdline = alloc_bootmem(argv_size); - int i; + if (argv_size > sizeof(argv)) { + pr_err("%s: command line too long: argv_size = %d\n", + __func__, argv_size); + } else { + int i; - cmdline[0] = 0; - simc_argv((void *)argv); + cmdline[0] = 0; + simc_argv((void *)argv); - for (i = 1; i < argc; ++i) { - if (i > 1) - strcat(cmdline, " "); - strcat(cmdline, argv[i]); + for (i = 1; i < argc; ++i) { + if (i > 1) + strcat(cmdline, " "); + strcat(cmdline, argv[i]); + } + *p_cmdline = cmdline; } - *p_cmdline = cmdline; } atomic_notifier_chain_register(&panic_notifier_list, &iss_panic_block); From 4cb205c0c50f613e2de91f0eb19d5247ed003e89 Mon Sep 17 00:00:00 2001 From: Jia He Date: Tue, 28 Aug 2018 12:53:26 +0800 Subject: [PATCH 0718/1762] irqchip/gic-v3-its: Cap lpi_id_bits to reduce memory footprint Commit fe8e93504ce8 ("irqchip/gic-v3-its: Use full range of LPIs"), removes the cap for lpi_id_bits, which causes the following warning to trigger on a QDF2400 server: WARNING: CPU: 0 PID: 0 at mm/page_alloc.c:4066 __alloc_pages_nodemask ... Call trace: __alloc_pages_nodemask+0x2d8/0x1188 alloc_pages_current+0x8c/0xd8 its_allocate_prop_table+0x5c/0xb8 its_init+0x220/0x3c0 gic_init_bases+0x250/0x380 gic_acpi_init+0x16c/0x2a4 In its_alloc_lpi_tables(), lpi_id_bits is 24 in QDF2400. The allocation in allocate_prop_table() tries therefore to allocate 16M (order 12 if pagesize=4k), which triggers the warning. As said by MarcL Capping lpi_id_bits at 16 (which is what we had before) is plenty, will save a some memory, and gives some margin before we need to push it up again. Bring the upper limit of lpi_id_bits back to prevent Fixes: fe8e93504ce8 ("irqchip/gic-v3-its: Use full range of LPIs") Suggested-by: Marc Zyngier Signed-off-by: Jia He Signed-off-by: Thomas Gleixner Acked-by: Marc Zyngier Tested-by: Olof Johansson Cc: Jason Cooper Cc: linux-arm-kernel@lists.infradead.org Link: https://lkml.kernel.org/r/1535432006-2304-1-git-send-email-jia.he@hxt-semitech.com --- drivers/irqchip/irq-gic-v3-its.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 316a57530f6d..c2df341ff6fa 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -1439,6 +1439,7 @@ static struct irq_chip its_irq_chip = { * The consequence of the above is that allocation is cost is low, but * freeing is expensive. We assumes that freeing rarely occurs. */ +#define ITS_MAX_LPI_NRBITS 16 /* 64K LPIs */ static DEFINE_MUTEX(lpi_range_lock); static LIST_HEAD(lpi_range_list); @@ -1625,7 +1626,8 @@ static int __init its_alloc_lpi_tables(void) { phys_addr_t paddr; - lpi_id_bits = GICD_TYPER_ID_BITS(gic_rdists->gicd_typer); + lpi_id_bits = min_t(u32, GICD_TYPER_ID_BITS(gic_rdists->gicd_typer), + ITS_MAX_LPI_NRBITS); gic_rdists->prop_page = its_allocate_prop_table(GFP_NOWAIT); if (!gic_rdists->prop_page) { pr_err("Failed to allocate PROPBASE\n"); From ae7304c3ea28a3ba47a7a8312c76c654ef24967e Mon Sep 17 00:00:00 2001 From: Shubhrajyoti Datta Date: Mon, 3 Sep 2018 15:11:11 +0530 Subject: [PATCH 0719/1762] i2c: xiic: Make the start and the byte count write atomic Disable interrupts while configuring the transfer and enable them back. We have below as the programming sequence 1. start and slave address 2. byte count and stop In some customer platform there was a lot of interrupts between 1 and 2 and after slave address (around 7 clock cyles) if 2 is not executed then the transaction is nacked. To fix this case make the 2 writes atomic. Signed-off-by: Shubhrajyoti Datta Signed-off-by: Michal Simek [wsa: added a newline for better readability] Signed-off-by: Wolfram Sang Cc: stable@kernel.org --- drivers/i2c/busses/i2c-xiic.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c index 9a71e50d21f1..0c51c0ffdda9 100644 --- a/drivers/i2c/busses/i2c-xiic.c +++ b/drivers/i2c/busses/i2c-xiic.c @@ -532,6 +532,7 @@ static void xiic_start_recv(struct xiic_i2c *i2c) { u8 rx_watermark; struct i2c_msg *msg = i2c->rx_msg = i2c->tx_msg; + unsigned long flags; /* Clear and enable Rx full interrupt. */ xiic_irq_clr_en(i2c, XIIC_INTR_RX_FULL_MASK | XIIC_INTR_TX_ERROR_MASK); @@ -547,6 +548,7 @@ static void xiic_start_recv(struct xiic_i2c *i2c) rx_watermark = IIC_RX_FIFO_DEPTH; xiic_setreg8(i2c, XIIC_RFD_REG_OFFSET, rx_watermark - 1); + local_irq_save(flags); if (!(msg->flags & I2C_M_NOSTART)) /* write the address */ xiic_setreg16(i2c, XIIC_DTR_REG_OFFSET, @@ -556,6 +558,8 @@ static void xiic_start_recv(struct xiic_i2c *i2c) xiic_setreg16(i2c, XIIC_DTR_REG_OFFSET, msg->len | ((i2c->nmsgs == 1) ? XIIC_TX_DYN_STOP_MASK : 0)); + local_irq_restore(flags); + if (i2c->nmsgs == 1) /* very last, enable bus not busy as well */ xiic_irq_clr_en(i2c, XIIC_INTR_BNB_MASK); From 954a8e3aea87e896e320cf648c1a5bbe47de443e Mon Sep 17 00:00:00 2001 From: Parav Pandit Date: Thu, 30 Aug 2018 08:35:19 +0300 Subject: [PATCH 0720/1762] RDMA/cma: Protect cma dev list with lock When AF_IB addresses are used during rdma_resolve_addr() a lock is not held. A cma device can get removed while list traversal is in progress which may lead to crash. ie CPU0 CPU1 ==== ==== rdma_resolve_addr() cma_resolve_ib_dev() list_for_each() cma_remove_one() cur_dev->device mutex_lock(&lock) list_del(); mutex_unlock(&lock); cma_process_remove(); Therefore, hold a lock while traversing the list which avoids such situation. Cc: # 3.10 Fixes: f17df3b0dede ("RDMA/cma: Add support for AF_IB to rdma_resolve_addr()") Signed-off-by: Parav Pandit Reviewed-by: Daniel Jurgens Signed-off-by: Leon Romanovsky Reviewed-by: Dennis Dalessandro Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/cma.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index f72677291b69..a36c94930c31 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -724,6 +724,7 @@ static int cma_resolve_ib_dev(struct rdma_id_private *id_priv) dgid = (union ib_gid *) &addr->sib_addr; pkey = ntohs(addr->sib_pkey); + mutex_lock(&lock); list_for_each_entry(cur_dev, &dev_list, list) { for (p = 1; p <= cur_dev->device->phys_port_cnt; ++p) { if (!rdma_cap_af_ib(cur_dev->device, p)) @@ -750,18 +751,19 @@ static int cma_resolve_ib_dev(struct rdma_id_private *id_priv) cma_dev = cur_dev; sgid = gid; id_priv->id.port_num = p; + goto found; } } } } - - if (!cma_dev) - return -ENODEV; + mutex_unlock(&lock); + return -ENODEV; found: cma_attach_to_dev(id_priv, cma_dev); - addr = (struct sockaddr_ib *) cma_src_addr(id_priv); - memcpy(&addr->sib_addr, &sgid, sizeof sgid); + mutex_unlock(&lock); + addr = (struct sockaddr_ib *)cma_src_addr(id_priv); + memcpy(&addr->sib_addr, &sgid, sizeof(sgid)); cma_translate_ib(addr, &id_priv->id.route.addr.dev_addr); return 0; } From 8f28b178f71cc56eccf2a6e2c0ace17c82f900d7 Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Mon, 3 Sep 2018 09:11:14 +0300 Subject: [PATCH 0721/1762] RDMA/mlx4: Ensure that maximal send/receive SGE less than supported by HW In calculating the global maximum number of the Scatter/Gather elements supported, the following four maximum parameters must be taken into consideration: max_sg_rq, max_sg_sq, max_desc_sz_rq and max_desc_sz_sq. However instead of bringing this complexity to query_device, which still won't be sufficient anyway (the calculations are dependent on QP type), the safer approach will be to restore old code, which will give us 32 SGEs. Fixes: 33023fb85a42 ("IB/core: add max_send_sge and max_recv_sge attributes") Reported-by: Chuck Lever Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/mlx4/main.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index ca0f1ee26091..0bbeaaae47e0 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -517,9 +517,11 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, props->page_size_cap = dev->dev->caps.page_size_cap; props->max_qp = dev->dev->quotas.qp; props->max_qp_wr = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE; - props->max_send_sge = dev->dev->caps.max_sq_sg; - props->max_recv_sge = dev->dev->caps.max_rq_sg; - props->max_sge_rd = MLX4_MAX_SGE_RD; + props->max_send_sge = + min(dev->dev->caps.max_sq_sg, dev->dev->caps.max_rq_sg); + props->max_recv_sge = + min(dev->dev->caps.max_sq_sg, dev->dev->caps.max_rq_sg); + props->max_sge_rd = MLX4_MAX_SGE_RD; props->max_cq = dev->dev->quotas.cq; props->max_cqe = dev->dev->caps.max_cqes; props->max_mr = dev->dev->quotas.mpt; From d77ef138ff572409ab93d492e5e6c826ee6fb21d Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Wed, 15 Aug 2018 15:00:11 -0400 Subject: [PATCH 0722/1762] drm/nouveau/drm/nouveau: Fix bogus drm_kms_helper_poll_enable() placement Turns out this part is my fault for not noticing when reviewing 9a2eba337cace ("drm/nouveau: Fix drm poll_helper handling"). Currently we call drm_kms_helper_poll_enable() from nouveau_display_hpd_work(). This makes basically no sense however, because that means we're calling drm_kms_helper_poll_enable() every time we schedule the hotplug detection work. This is also against the advice mentioned in drm_kms_helper_poll_enable()'s documentation: Note that calls to enable and disable polling must be strictly ordered, which is automatically the case when they're only call from suspend/resume callbacks. Of course, hotplugs can't really be ordered. They could even happen immediately after we called drm_kms_helper_poll_disable() in nouveau_display_fini(), which can lead to all sorts of issues. Additionally; enabling polling /after/ we call drm_helper_hpd_irq_event() could also mean that we'd miss a hotplug event anyway, since drm_helper_hpd_irq_event() wouldn't bother trying to probe connectors so long as polling is disabled. So; simply move this back into nouveau_display_init() again. The race condition that both of these patches attempted to work around has already been fixed properly in d61a5c106351 ("drm/nouveau: Fix deadlock on runtime suspend") Fixes: 9a2eba337cace ("drm/nouveau: Fix drm poll_helper handling") Signed-off-by: Lyude Paul Acked-by: Karol Herbst Acked-by: Daniel Vetter Cc: Lukas Wunner Cc: Peter Ujfalusi Cc: stable@vger.kernel.org Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_display.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 139368b31916..7db01ea7fd41 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -355,8 +355,6 @@ nouveau_display_hpd_work(struct work_struct *work) pm_runtime_get_sync(drm->dev->dev); drm_helper_hpd_irq_event(drm->dev); - /* enable polling for external displays */ - drm_kms_helper_poll_enable(drm->dev); pm_runtime_mark_last_busy(drm->dev->dev); pm_runtime_put_sync(drm->dev->dev); @@ -411,6 +409,11 @@ nouveau_display_init(struct drm_device *dev) if (ret) return ret; + /* enable connector detection and polling for connectors without HPD + * support + */ + drm_kms_helper_poll_enable(dev); + /* enable hotplug interrupts */ drm_connector_list_iter_begin(dev, &conn_iter); nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) { From 611ce855420a6e8b9ff47af5f47431d52c7709f8 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Wed, 15 Aug 2018 15:00:12 -0400 Subject: [PATCH 0723/1762] drm/nouveau: Remove duplicate poll_enable() in pmops_runtime_suspend() Since actual hotplug notifications don't get disabled until nouveau_display_fini() is called, all this will do is cause any hotplugs that happen between this drm_kms_helper_poll_disable() call and the actual hotplug disablement to potentially be dropped if ACPI isn't around to help us. Signed-off-by: Lyude Paul Acked-by: Karol Herbst Acked-by: Daniel Vetter Cc: stable@vger.kernel.org Cc: Lukas Wunner Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_drm.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index c7ec86d6c3c9..5fdc1fbe2ee5 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -835,7 +835,6 @@ nouveau_pmops_runtime_suspend(struct device *dev) return -EBUSY; } - drm_kms_helper_poll_disable(drm_dev); nouveau_switcheroo_optimus_dsm(); ret = nouveau_do_suspend(drm_dev, true); pci_save_state(pdev); From 7fec8f5379fb6eddabc0aaef6d2304c366808f97 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Wed, 15 Aug 2018 15:00:13 -0400 Subject: [PATCH 0724/1762] drm/nouveau/drm/nouveau: Fix deadlock with fb_helper with async RPM requests Currently, nouveau uses the generic drm_fb_helper_output_poll_changed() function provided by DRM as it's output_poll_changed callback. Unfortunately however, this function doesn't grab runtime PM references early enough and even if it did-we can't block waiting for the device to resume in output_poll_changed() since it's very likely that we'll need to grab the fb_helper lock at some point during the runtime resume process. This currently results in deadlocking like so: [ 246.669625] INFO: task kworker/4:0:37 blocked for more than 120 seconds. [ 246.673398] Not tainted 4.18.0-rc5Lyude-Test+ #2 [ 246.675271] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 246.676527] kworker/4:0 D 0 37 2 0x80000000 [ 246.677580] Workqueue: events output_poll_execute [drm_kms_helper] [ 246.678704] Call Trace: [ 246.679753] __schedule+0x322/0xaf0 [ 246.680916] schedule+0x33/0x90 [ 246.681924] schedule_preempt_disabled+0x15/0x20 [ 246.683023] __mutex_lock+0x569/0x9a0 [ 246.684035] ? kobject_uevent_env+0x117/0x7b0 [ 246.685132] ? drm_fb_helper_hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] [ 246.686179] mutex_lock_nested+0x1b/0x20 [ 246.687278] ? mutex_lock_nested+0x1b/0x20 [ 246.688307] drm_fb_helper_hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] [ 246.689420] drm_fb_helper_output_poll_changed+0x23/0x30 [drm_kms_helper] [ 246.690462] drm_kms_helper_hotplug_event+0x2a/0x30 [drm_kms_helper] [ 246.691570] output_poll_execute+0x198/0x1c0 [drm_kms_helper] [ 246.692611] process_one_work+0x231/0x620 [ 246.693725] worker_thread+0x214/0x3a0 [ 246.694756] kthread+0x12b/0x150 [ 246.695856] ? wq_pool_ids_show+0x140/0x140 [ 246.696888] ? kthread_create_worker_on_cpu+0x70/0x70 [ 246.697998] ret_from_fork+0x3a/0x50 [ 246.699034] INFO: task kworker/0:1:60 blocked for more than 120 seconds. [ 246.700153] Not tainted 4.18.0-rc5Lyude-Test+ #2 [ 246.701182] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 246.702278] kworker/0:1 D 0 60 2 0x80000000 [ 246.703293] Workqueue: pm pm_runtime_work [ 246.704393] Call Trace: [ 246.705403] __schedule+0x322/0xaf0 [ 246.706439] ? wait_for_completion+0x104/0x190 [ 246.707393] schedule+0x33/0x90 [ 246.708375] schedule_timeout+0x3a5/0x590 [ 246.709289] ? mark_held_locks+0x58/0x80 [ 246.710208] ? _raw_spin_unlock_irq+0x2c/0x40 [ 246.711222] ? wait_for_completion+0x104/0x190 [ 246.712134] ? trace_hardirqs_on_caller+0xf4/0x190 [ 246.713094] ? wait_for_completion+0x104/0x190 [ 246.713964] wait_for_completion+0x12c/0x190 [ 246.714895] ? wake_up_q+0x80/0x80 [ 246.715727] ? get_work_pool+0x90/0x90 [ 246.716649] flush_work+0x1c9/0x280 [ 246.717483] ? flush_workqueue_prep_pwqs+0x1b0/0x1b0 [ 246.718442] __cancel_work_timer+0x146/0x1d0 [ 246.719247] cancel_delayed_work_sync+0x13/0x20 [ 246.720043] drm_kms_helper_poll_disable+0x1f/0x30 [drm_kms_helper] [ 246.721123] nouveau_pmops_runtime_suspend+0x3d/0xb0 [nouveau] [ 246.721897] pci_pm_runtime_suspend+0x6b/0x190 [ 246.722825] ? pci_has_legacy_pm_support+0x70/0x70 [ 246.723737] __rpm_callback+0x7a/0x1d0 [ 246.724721] ? pci_has_legacy_pm_support+0x70/0x70 [ 246.725607] rpm_callback+0x24/0x80 [ 246.726553] ? pci_has_legacy_pm_support+0x70/0x70 [ 246.727376] rpm_suspend+0x142/0x6b0 [ 246.728185] pm_runtime_work+0x97/0xc0 [ 246.728938] process_one_work+0x231/0x620 [ 246.729796] worker_thread+0x44/0x3a0 [ 246.730614] kthread+0x12b/0x150 [ 246.731395] ? wq_pool_ids_show+0x140/0x140 [ 246.732202] ? kthread_create_worker_on_cpu+0x70/0x70 [ 246.732878] ret_from_fork+0x3a/0x50 [ 246.733768] INFO: task kworker/4:2:422 blocked for more than 120 seconds. [ 246.734587] Not tainted 4.18.0-rc5Lyude-Test+ #2 [ 246.735393] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 246.736113] kworker/4:2 D 0 422 2 0x80000080 [ 246.736789] Workqueue: events_long drm_dp_mst_link_probe_work [drm_kms_helper] [ 246.737665] Call Trace: [ 246.738490] __schedule+0x322/0xaf0 [ 246.739250] schedule+0x33/0x90 [ 246.739908] rpm_resume+0x19c/0x850 [ 246.740750] ? finish_wait+0x90/0x90 [ 246.741541] __pm_runtime_resume+0x4e/0x90 [ 246.742370] nv50_disp_atomic_commit+0x31/0x210 [nouveau] [ 246.743124] drm_atomic_commit+0x4a/0x50 [drm] [ 246.743775] restore_fbdev_mode_atomic+0x1c8/0x240 [drm_kms_helper] [ 246.744603] restore_fbdev_mode+0x31/0x140 [drm_kms_helper] [ 246.745373] drm_fb_helper_restore_fbdev_mode_unlocked+0x54/0xb0 [drm_kms_helper] [ 246.746220] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper] [ 246.746884] drm_fb_helper_hotplug_event.part.28+0x96/0xb0 [drm_kms_helper] [ 246.747675] drm_fb_helper_output_poll_changed+0x23/0x30 [drm_kms_helper] [ 246.748544] drm_kms_helper_hotplug_event+0x2a/0x30 [drm_kms_helper] [ 246.749439] nv50_mstm_hotplug+0x15/0x20 [nouveau] [ 246.750111] drm_dp_send_link_address+0x177/0x1c0 [drm_kms_helper] [ 246.750764] drm_dp_check_and_send_link_address+0xa8/0xd0 [drm_kms_helper] [ 246.751602] drm_dp_mst_link_probe_work+0x51/0x90 [drm_kms_helper] [ 246.752314] process_one_work+0x231/0x620 [ 246.752979] worker_thread+0x44/0x3a0 [ 246.753838] kthread+0x12b/0x150 [ 246.754619] ? wq_pool_ids_show+0x140/0x140 [ 246.755386] ? kthread_create_worker_on_cpu+0x70/0x70 [ 246.756162] ret_from_fork+0x3a/0x50 [ 246.756847] Showing all locks held in the system: [ 246.758261] 3 locks held by kworker/4:0/37: [ 246.759016] #0: 00000000f8df4d2d ((wq_completion)"events"){+.+.}, at: process_one_work+0x1b3/0x620 [ 246.759856] #1: 00000000e6065461 ((work_completion)(&(&dev->mode_config.output_poll_work)->work)){+.+.}, at: process_one_work+0x1b3/0x620 [ 246.760670] #2: 00000000cb66735f (&helper->lock){+.+.}, at: drm_fb_helper_hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] [ 246.761516] 2 locks held by kworker/0:1/60: [ 246.762274] #0: 00000000fff6be0f ((wq_completion)"pm"){+.+.}, at: process_one_work+0x1b3/0x620 [ 246.762982] #1: 000000005ab44fb4 ((work_completion)(&dev->power.work)){+.+.}, at: process_one_work+0x1b3/0x620 [ 246.763890] 1 lock held by khungtaskd/64: [ 246.764664] #0: 000000008cb8b5c3 (rcu_read_lock){....}, at: debug_show_all_locks+0x23/0x185 [ 246.765588] 5 locks held by kworker/4:2/422: [ 246.766440] #0: 00000000232f0959 ((wq_completion)"events_long"){+.+.}, at: process_one_work+0x1b3/0x620 [ 246.767390] #1: 00000000bb59b134 ((work_completion)(&mgr->work)){+.+.}, at: process_one_work+0x1b3/0x620 [ 246.768154] #2: 00000000cb66735f (&helper->lock){+.+.}, at: drm_fb_helper_restore_fbdev_mode_unlocked+0x4c/0xb0 [drm_kms_helper] [ 246.768966] #3: 000000004c8f0b6b (crtc_ww_class_acquire){+.+.}, at: restore_fbdev_mode_atomic+0x4b/0x240 [drm_kms_helper] [ 246.769921] #4: 000000004c34a296 (crtc_ww_class_mutex){+.+.}, at: drm_modeset_backoff+0x8a/0x1b0 [drm] [ 246.770839] 1 lock held by dmesg/1038: [ 246.771739] 2 locks held by zsh/1172: [ 246.772650] #0: 00000000836d0438 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 [ 246.773680] #1: 000000001f4f4d48 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0xc1/0x870 [ 246.775522] ============================================= After trying dozens of different solutions, I found one very simple one that should also have the benefit of preventing us from having to fight locking for the rest of our lives. So, we work around these deadlocks by deferring all fbcon hotplug events that happen after the runtime suspend process starts until after the device is resumed again. Changes since v7: - Fixup commit message - Daniel Vetter Changes since v6: - Remove unused nouveau_fbcon_hotplugged_in_suspend() - Ilia Changes since v5: - Come up with the (hopefully final) solution for solving this dumb problem, one that is a lot less likely to cause issues with locking in the future. This should work around all deadlock conditions with fbcon brought up thus far. Changes since v4: - Add nouveau_fbcon_hotplugged_in_suspend() to workaround deadlock condition that Lukas described - Just move all of this out of drm_fb_helper. It seems that other DRM drivers have already figured out other workarounds for this. If other drivers do end up needing this in the future, we can just move this back into drm_fb_helper again. Changes since v3: - Actually check if fb_helper is NULL in both new helpers - Actually check drm_fbdev_emulation in both new helpers - Don't fire off a fb_helper hotplug unconditionally; only do it if the following conditions are true (as otherwise, calling this in the wrong spot will cause Bad Things to happen): - fb_helper hotplug handling was actually inhibited previously - fb_helper actually has a delayed hotplug pending - fb_helper is actually bound - fb_helper is actually initialized - Add __must_check to drm_fb_helper_suspend_hotplug(). There's no situation where a driver would actually want to use this without checking the return value, so enforce that - Rewrite and clarify the documentation for both helpers. - Make sure to return true in the drm_fb_helper_suspend_hotplug() stub that's provided in drm_fb_helper.h when CONFIG_DRM_FBDEV_EMULATION isn't enabled - Actually grab the toplevel fb_helper lock in drm_fb_helper_resume_hotplug(), since it's possible other activity (such as a hotplug) could be going on at the same time the driver calls drm_fb_helper_resume_hotplug(). We need this to check whether or not drm_fb_helper_hotplug_event() needs to be called anyway Signed-off-by: Lyude Paul Reviewed-by: Karol Herbst Acked-by: Daniel Vetter Cc: stable@vger.kernel.org Cc: Lukas Wunner Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/dispnv50/disp.c | 2 +- drivers/gpu/drm/nouveau/nouveau_display.c | 2 +- drivers/gpu/drm/nouveau/nouveau_fbcon.c | 57 +++++++++++++++++++++++ drivers/gpu/drm/nouveau/nouveau_fbcon.h | 5 ++ 4 files changed, 64 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index 8412119bd940..aec6ee1ff4e0 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -2074,7 +2074,7 @@ nv50_disp_atomic_state_alloc(struct drm_device *dev) static const struct drm_mode_config_funcs nv50_disp_func = { .fb_create = nouveau_user_framebuffer_create, - .output_poll_changed = drm_fb_helper_output_poll_changed, + .output_poll_changed = nouveau_fbcon_output_poll_changed, .atomic_check = nv50_disp_atomic_check, .atomic_commit = nv50_disp_atomic_commit, .atomic_state_alloc = nv50_disp_atomic_state_alloc, diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 7db01ea7fd41..42e7c35e3fba 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -293,7 +293,7 @@ nouveau_user_framebuffer_create(struct drm_device *dev, static const struct drm_mode_config_funcs nouveau_mode_config_funcs = { .fb_create = nouveau_user_framebuffer_create, - .output_poll_changed = drm_fb_helper_output_poll_changed, + .output_poll_changed = nouveau_fbcon_output_poll_changed, }; diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index 844498c4267c..0f64c0a1d4b3 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -466,6 +466,7 @@ nouveau_fbcon_set_suspend_work(struct work_struct *work) console_unlock(); if (state == FBINFO_STATE_RUNNING) { + nouveau_fbcon_hotplug_resume(drm->fbcon); pm_runtime_mark_last_busy(drm->dev->dev); pm_runtime_put_sync(drm->dev->dev); } @@ -487,6 +488,61 @@ nouveau_fbcon_set_suspend(struct drm_device *dev, int state) schedule_work(&drm->fbcon_work); } +void +nouveau_fbcon_output_poll_changed(struct drm_device *dev) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + struct nouveau_fbdev *fbcon = drm->fbcon; + int ret; + + if (!fbcon) + return; + + mutex_lock(&fbcon->hotplug_lock); + + ret = pm_runtime_get(dev->dev); + if (ret == 1 || ret == -EACCES) { + drm_fb_helper_hotplug_event(&fbcon->helper); + + pm_runtime_mark_last_busy(dev->dev); + pm_runtime_put_autosuspend(dev->dev); + } else if (ret == 0) { + /* If the GPU was already in the process of suspending before + * this event happened, then we can't block here as we'll + * deadlock the runtime pmops since they wait for us to + * finish. So, just defer this event for when we runtime + * resume again. It will be handled by fbcon_work. + */ + NV_DEBUG(drm, "fbcon HPD event deferred until runtime resume\n"); + fbcon->hotplug_waiting = true; + pm_runtime_put_noidle(drm->dev->dev); + } else { + DRM_WARN("fbcon HPD event lost due to RPM failure: %d\n", + ret); + } + + mutex_unlock(&fbcon->hotplug_lock); +} + +void +nouveau_fbcon_hotplug_resume(struct nouveau_fbdev *fbcon) +{ + struct nouveau_drm *drm; + + if (!fbcon) + return; + drm = nouveau_drm(fbcon->helper.dev); + + mutex_lock(&fbcon->hotplug_lock); + if (fbcon->hotplug_waiting) { + fbcon->hotplug_waiting = false; + + NV_DEBUG(drm, "Handling deferred fbcon HPD events\n"); + drm_fb_helper_hotplug_event(&fbcon->helper); + } + mutex_unlock(&fbcon->hotplug_lock); +} + int nouveau_fbcon_init(struct drm_device *dev) { @@ -505,6 +561,7 @@ nouveau_fbcon_init(struct drm_device *dev) drm->fbcon = fbcon; INIT_WORK(&drm->fbcon_work, nouveau_fbcon_set_suspend_work); + mutex_init(&fbcon->hotplug_lock); drm_fb_helper_prepare(dev, &fbcon->helper, &nouveau_fbcon_helper_funcs); diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.h b/drivers/gpu/drm/nouveau/nouveau_fbcon.h index a6f192ea3fa6..db9d52047ef8 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.h +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.h @@ -41,6 +41,9 @@ struct nouveau_fbdev { struct nvif_object gdi; struct nvif_object blit; struct nvif_object twod; + + struct mutex hotplug_lock; + bool hotplug_waiting; }; void nouveau_fbcon_restore(void); @@ -68,6 +71,8 @@ void nouveau_fbcon_set_suspend(struct drm_device *dev, int state); void nouveau_fbcon_accel_save_disable(struct drm_device *dev); void nouveau_fbcon_accel_restore(struct drm_device *dev); +void nouveau_fbcon_output_poll_changed(struct drm_device *dev); +void nouveau_fbcon_hotplug_resume(struct nouveau_fbdev *fbcon); extern int nouveau_nofbaccel; #endif /* __NV50_FBCON_H__ */ From 6833fb1ec120bf078e1a527c573a09d4de286224 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Wed, 15 Aug 2018 15:00:14 -0400 Subject: [PATCH 0725/1762] drm/nouveau/drm/nouveau: Use pm_runtime_get_noresume() in connector_detect() It's true we can't resume the device from poll workers in nouveau_connector_detect(). We can however, prevent the autosuspend timer from elapsing immediately if it hasn't already without risking any sort of deadlock with the runtime suspend/resume operations. So do that instead of entirely avoiding grabbing a power reference. Signed-off-by: Lyude Paul Reviewed-by: Karol Herbst Acked-by: Daniel Vetter Cc: stable@vger.kernel.org Cc: Lukas Wunner Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_connector.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 51932c72334e..31b31a35c8fe 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -555,12 +555,16 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) nv_connector->edid = NULL; } - /* Outputs are only polled while runtime active, so acquiring a - * runtime PM ref here is unnecessary (and would deadlock upon - * runtime suspend because it waits for polling to finish). + /* Outputs are only polled while runtime active, so resuming the + * device here is unnecessary (and would deadlock upon runtime suspend + * because it waits for polling to finish). We do however, want to + * prevent the autosuspend timer from elapsing during this operation + * if possible. */ - if (!drm_kms_helper_is_poll_worker()) { - ret = pm_runtime_get_sync(connector->dev->dev); + if (drm_kms_helper_is_poll_worker()) { + pm_runtime_get_noresume(dev->dev); + } else { + ret = pm_runtime_get_sync(dev->dev); if (ret < 0 && ret != -EACCES) return conn_status; } @@ -638,10 +642,8 @@ detect_analog: out: - if (!drm_kms_helper_is_poll_worker()) { - pm_runtime_mark_last_busy(connector->dev->dev); - pm_runtime_put_autosuspend(connector->dev->dev); - } + pm_runtime_mark_last_busy(dev->dev); + pm_runtime_put_autosuspend(dev->dev); return conn_status; } From 3e1a12754d4df5804bfca5dedf09d2ba291bdc2a Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Wed, 15 Aug 2018 15:00:15 -0400 Subject: [PATCH 0726/1762] drm/nouveau: Fix deadlocks in nouveau_connector_detect() When we disable hotplugging on the GPU, we need to be able to synchronize with each connector's hotplug interrupt handler before the interrupt is finally disabled. This can be a problem however, since nouveau_connector_detect() currently grabs a runtime power reference when handling connector probing. This will deadlock the runtime suspend handler like so: [ 861.480896] INFO: task kworker/0:2:61 blocked for more than 120 seconds. [ 861.483290] Tainted: G O 4.18.0-rc6Lyude-Test+ #1 [ 861.485158] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 861.486332] kworker/0:2 D 0 61 2 0x80000000 [ 861.487044] Workqueue: events nouveau_display_hpd_work [nouveau] [ 861.487737] Call Trace: [ 861.488394] __schedule+0x322/0xaf0 [ 861.489070] schedule+0x33/0x90 [ 861.489744] rpm_resume+0x19c/0x850 [ 861.490392] ? finish_wait+0x90/0x90 [ 861.491068] __pm_runtime_resume+0x4e/0x90 [ 861.491753] nouveau_display_hpd_work+0x22/0x60 [nouveau] [ 861.492416] process_one_work+0x231/0x620 [ 861.493068] worker_thread+0x44/0x3a0 [ 861.493722] kthread+0x12b/0x150 [ 861.494342] ? wq_pool_ids_show+0x140/0x140 [ 861.494991] ? kthread_create_worker_on_cpu+0x70/0x70 [ 861.495648] ret_from_fork+0x3a/0x50 [ 861.496304] INFO: task kworker/6:2:320 blocked for more than 120 seconds. [ 861.496968] Tainted: G O 4.18.0-rc6Lyude-Test+ #1 [ 861.497654] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 861.498341] kworker/6:2 D 0 320 2 0x80000080 [ 861.499045] Workqueue: pm pm_runtime_work [ 861.499739] Call Trace: [ 861.500428] __schedule+0x322/0xaf0 [ 861.501134] ? wait_for_completion+0x104/0x190 [ 861.501851] schedule+0x33/0x90 [ 861.502564] schedule_timeout+0x3a5/0x590 [ 861.503284] ? mark_held_locks+0x58/0x80 [ 861.503988] ? _raw_spin_unlock_irq+0x2c/0x40 [ 861.504710] ? wait_for_completion+0x104/0x190 [ 861.505417] ? trace_hardirqs_on_caller+0xf4/0x190 [ 861.506136] ? wait_for_completion+0x104/0x190 [ 861.506845] wait_for_completion+0x12c/0x190 [ 861.507555] ? wake_up_q+0x80/0x80 [ 861.508268] flush_work+0x1c9/0x280 [ 861.508990] ? flush_workqueue_prep_pwqs+0x1b0/0x1b0 [ 861.509735] nvif_notify_put+0xb1/0xc0 [nouveau] [ 861.510482] nouveau_display_fini+0xbd/0x170 [nouveau] [ 861.511241] nouveau_display_suspend+0x67/0x120 [nouveau] [ 861.511969] nouveau_do_suspend+0x5e/0x2d0 [nouveau] [ 861.512715] nouveau_pmops_runtime_suspend+0x47/0xb0 [nouveau] [ 861.513435] pci_pm_runtime_suspend+0x6b/0x180 [ 861.514165] ? pci_has_legacy_pm_support+0x70/0x70 [ 861.514897] __rpm_callback+0x7a/0x1d0 [ 861.515618] ? pci_has_legacy_pm_support+0x70/0x70 [ 861.516313] rpm_callback+0x24/0x80 [ 861.517027] ? pci_has_legacy_pm_support+0x70/0x70 [ 861.517741] rpm_suspend+0x142/0x6b0 [ 861.518449] pm_runtime_work+0x97/0xc0 [ 861.519144] process_one_work+0x231/0x620 [ 861.519831] worker_thread+0x44/0x3a0 [ 861.520522] kthread+0x12b/0x150 [ 861.521220] ? wq_pool_ids_show+0x140/0x140 [ 861.521925] ? kthread_create_worker_on_cpu+0x70/0x70 [ 861.522622] ret_from_fork+0x3a/0x50 [ 861.523299] INFO: task kworker/6:0:1329 blocked for more than 120 seconds. [ 861.523977] Tainted: G O 4.18.0-rc6Lyude-Test+ #1 [ 861.524644] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 861.525349] kworker/6:0 D 0 1329 2 0x80000000 [ 861.526073] Workqueue: events nvif_notify_work [nouveau] [ 861.526751] Call Trace: [ 861.527411] __schedule+0x322/0xaf0 [ 861.528089] schedule+0x33/0x90 [ 861.528758] rpm_resume+0x19c/0x850 [ 861.529399] ? finish_wait+0x90/0x90 [ 861.530073] __pm_runtime_resume+0x4e/0x90 [ 861.530798] nouveau_connector_detect+0x7e/0x510 [nouveau] [ 861.531459] ? ww_mutex_lock+0x47/0x80 [ 861.532097] ? ww_mutex_lock+0x47/0x80 [ 861.532819] ? drm_modeset_lock+0x88/0x130 [drm] [ 861.533481] drm_helper_probe_detect_ctx+0xa0/0x100 [drm_kms_helper] [ 861.534127] drm_helper_hpd_irq_event+0xa4/0x120 [drm_kms_helper] [ 861.534940] nouveau_connector_hotplug+0x98/0x120 [nouveau] [ 861.535556] nvif_notify_work+0x2d/0xb0 [nouveau] [ 861.536221] process_one_work+0x231/0x620 [ 861.536994] worker_thread+0x44/0x3a0 [ 861.537757] kthread+0x12b/0x150 [ 861.538463] ? wq_pool_ids_show+0x140/0x140 [ 861.539102] ? kthread_create_worker_on_cpu+0x70/0x70 [ 861.539815] ret_from_fork+0x3a/0x50 [ 861.540521] Showing all locks held in the system: [ 861.541696] 2 locks held by kworker/0:2/61: [ 861.542406] #0: 000000002dbf8af5 ((wq_completion)"events"){+.+.}, at: process_one_work+0x1b3/0x620 [ 861.543071] #1: 0000000076868126 ((work_completion)(&drm->hpd_work)){+.+.}, at: process_one_work+0x1b3/0x620 [ 861.543814] 1 lock held by khungtaskd/64: [ 861.544535] #0: 0000000059db4b53 (rcu_read_lock){....}, at: debug_show_all_locks+0x23/0x185 [ 861.545160] 3 locks held by kworker/6:2/320: [ 861.545896] #0: 00000000d9e1bc59 ((wq_completion)"pm"){+.+.}, at: process_one_work+0x1b3/0x620 [ 861.546702] #1: 00000000c9f92d84 ((work_completion)(&dev->power.work)){+.+.}, at: process_one_work+0x1b3/0x620 [ 861.547443] #2: 000000004afc5de1 (drm_connector_list_iter){.+.+}, at: nouveau_display_fini+0x96/0x170 [nouveau] [ 861.548146] 1 lock held by dmesg/983: [ 861.548889] 2 locks held by zsh/1250: [ 861.549605] #0: 00000000348e3cf6 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 [ 861.550393] #1: 000000007009a7a8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0xc1/0x870 [ 861.551122] 6 locks held by kworker/6:0/1329: [ 861.551957] #0: 000000002dbf8af5 ((wq_completion)"events"){+.+.}, at: process_one_work+0x1b3/0x620 [ 861.552765] #1: 00000000ddb499ad ((work_completion)(¬ify->work)#2){+.+.}, at: process_one_work+0x1b3/0x620 [ 861.553582] #2: 000000006e013cbe (&dev->mode_config.mutex){+.+.}, at: drm_helper_hpd_irq_event+0x6c/0x120 [drm_kms_helper] [ 861.554357] #3: 000000004afc5de1 (drm_connector_list_iter){.+.+}, at: drm_helper_hpd_irq_event+0x78/0x120 [drm_kms_helper] [ 861.555227] #4: 0000000044f294d9 (crtc_ww_class_acquire){+.+.}, at: drm_helper_probe_detect_ctx+0x3d/0x100 [drm_kms_helper] [ 861.556133] #5: 00000000db193642 (crtc_ww_class_mutex){+.+.}, at: drm_modeset_lock+0x4b/0x130 [drm] [ 861.557864] ============================================= [ 861.559507] NMI backtrace for cpu 2 [ 861.560363] CPU: 2 PID: 64 Comm: khungtaskd Tainted: G O 4.18.0-rc6Lyude-Test+ #1 [ 861.561197] Hardware name: LENOVO 20EQS64N0B/20EQS64N0B, BIOS N1EET78W (1.51 ) 05/18/2018 [ 861.561948] Call Trace: [ 861.562757] dump_stack+0x8e/0xd3 [ 861.563516] nmi_cpu_backtrace.cold.3+0x14/0x5a [ 861.564269] ? lapic_can_unplug_cpu.cold.27+0x42/0x42 [ 861.565029] nmi_trigger_cpumask_backtrace+0xa1/0xae [ 861.565789] arch_trigger_cpumask_backtrace+0x19/0x20 [ 861.566558] watchdog+0x316/0x580 [ 861.567355] kthread+0x12b/0x150 [ 861.568114] ? reset_hung_task_detector+0x20/0x20 [ 861.568863] ? kthread_create_worker_on_cpu+0x70/0x70 [ 861.569598] ret_from_fork+0x3a/0x50 [ 861.570370] Sending NMI from CPU 2 to CPUs 0-1,3-7: [ 861.571426] NMI backtrace for cpu 6 skipped: idling at intel_idle+0x7f/0x120 [ 861.571429] NMI backtrace for cpu 7 skipped: idling at intel_idle+0x7f/0x120 [ 861.571432] NMI backtrace for cpu 3 skipped: idling at intel_idle+0x7f/0x120 [ 861.571464] NMI backtrace for cpu 5 skipped: idling at intel_idle+0x7f/0x120 [ 861.571467] NMI backtrace for cpu 0 skipped: idling at intel_idle+0x7f/0x120 [ 861.571469] NMI backtrace for cpu 4 skipped: idling at intel_idle+0x7f/0x120 [ 861.571472] NMI backtrace for cpu 1 skipped: idling at intel_idle+0x7f/0x120 [ 861.572428] Kernel panic - not syncing: hung_task: blocked tasks So: fix this by making it so that normal hotplug handling /only/ happens so long as the GPU is currently awake without any pending runtime PM requests. In the event that a hotplug occurs while the device is suspending or resuming, we can simply defer our response until the GPU is fully runtime resumed again. Changes since v4: - Use a new trick I came up with using pm_runtime_get() instead of the hackish junk we had before Signed-off-by: Lyude Paul Reviewed-by: Karol Herbst Acked-by: Daniel Vetter Cc: stable@vger.kernel.org Cc: Lukas Wunner Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_connector.c | 22 +++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 31b31a35c8fe..76660bc1ccfb 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -1107,6 +1107,26 @@ nouveau_connector_hotplug(struct nvif_notify *notify) const struct nvif_notify_conn_rep_v0 *rep = notify->data; const char *name = connector->name; struct nouveau_encoder *nv_encoder; + int ret; + + ret = pm_runtime_get(drm->dev->dev); + if (ret == 0) { + /* We can't block here if there's a pending PM request + * running, as we'll deadlock nouveau_display_fini() when it + * calls nvif_put() on our nvif_notify struct. So, simply + * defer the hotplug event until the device finishes resuming + */ + NV_DEBUG(drm, "Deferring HPD on %s until runtime resume\n", + name); + schedule_work(&drm->hpd_work); + + pm_runtime_put_noidle(drm->dev->dev); + return NVIF_NOTIFY_KEEP; + } else if (ret != 1 && ret != -EACCES) { + NV_WARN(drm, "HPD on %s dropped due to RPM failure: %d\n", + name, ret); + return NVIF_NOTIFY_DROP; + } if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) { NV_DEBUG(drm, "service %s\n", name); @@ -1124,6 +1144,8 @@ nouveau_connector_hotplug(struct nvif_notify *notify) drm_helper_hpd_irq_event(connector->dev); } + pm_runtime_mark_last_busy(drm->dev->dev); + pm_runtime_put_autosuspend(drm->dev->dev); return NVIF_NOTIFY_KEEP; } From 0445f7537d0742e4f8bcf594a8d81fb901fd131e Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Wed, 15 Aug 2018 15:15:11 -0400 Subject: [PATCH 0727/1762] drm/nouveau: Remove useless poll_enable() call in switcheroo_set_state() This doesn't do anything, drm_kms_helper_poll_enable() gets called in nouveau_pmops_resume()->nouveau_display_resume()->nouveau_display_init() already. Signed-off-by: Lyude Paul Reviewed-by: Karol Herbst Acked-by: Daniel Vetter Cc: Lukas Wunner Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_vga.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c index 3da5a4305aa4..09b1d8151881 100644 --- a/drivers/gpu/drm/nouveau/nouveau_vga.c +++ b/drivers/gpu/drm/nouveau/nouveau_vga.c @@ -46,7 +46,6 @@ nouveau_switcheroo_set_state(struct pci_dev *pdev, pr_err("VGA switcheroo: switched nouveau on\n"); dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; nouveau_pmops_resume(&pdev->dev); - drm_kms_helper_poll_enable(dev); dev->switch_power_state = DRM_SWITCH_POWER_ON; } else { pr_err("VGA switcheroo: switched nouveau off\n"); From 0d7b2d4def679cae3bf2728fc31be7f8a48ceab3 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Wed, 15 Aug 2018 15:15:12 -0400 Subject: [PATCH 0728/1762] drm/nouveau: Remove useless poll_disable() call in switcheroo_set_state() This won't do anything but potentially make us miss hotplugs. We already call drm_kms_helper_poll_disable() in nouveau_pmops_suspend()->nouveau_display_suspend()->nouveau_display_fini() Signed-off-by: Lyude Paul Reviewed-by: Karol Herbst Acked-by: Daniel Vetter Cc: Lukas Wunner Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_vga.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c index 09b1d8151881..8f1ce4833230 100644 --- a/drivers/gpu/drm/nouveau/nouveau_vga.c +++ b/drivers/gpu/drm/nouveau/nouveau_vga.c @@ -50,7 +50,6 @@ nouveau_switcheroo_set_state(struct pci_dev *pdev, } else { pr_err("VGA switcheroo: switched nouveau off\n"); dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; - drm_kms_helper_poll_disable(dev); nouveau_switcheroo_optimus_dsm(); nouveau_pmops_suspend(&pdev->dev); dev->switch_power_state = DRM_SWITCH_POWER_OFF; From 7326ead9828e5eb5c6030d80310241c404e919f9 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Wed, 15 Aug 2018 15:15:13 -0400 Subject: [PATCH 0729/1762] drm/nouveau: Remove useless poll_enable() call in drm_load() Again, this doesn't do anything. drm_kms_helper_poll_enable() will have already been called in nouveau_display_init() Signed-off-by: Lyude Paul Reviewed-by: Karol Herbst Acked-by: Daniel Vetter Cc: Lukas Wunner Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_drm.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 5fdc1fbe2ee5..04f704b77a3c 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -592,10 +592,8 @@ nouveau_drm_load(struct drm_device *dev, unsigned long flags) pm_runtime_allow(dev->dev); pm_runtime_mark_last_busy(dev->dev); pm_runtime_put(dev->dev); - } else { - /* enable polling for external displays */ - drm_kms_helper_poll_enable(dev); } + return 0; fail_dispinit: From b26b4590dd53e012526342e749c423e6c0e73437 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Thu, 9 Aug 2018 18:22:05 -0400 Subject: [PATCH 0730/1762] drm/nouveau: Only write DP_MSTM_CTRL when needed Currently, nouveau will re-write the DP_MSTM_CTRL register for an MST hub every time it receives a long HPD pulse on DP. This isn't actually necessary and additionally, has some unintended side effects. With the P50 I've got here, rewriting DP_MSTM_CTRL constantly seems to make it rather likely (1 out of 5 times usually) that bringing up MST with it's ThinkPad dock will fail and result in sideband messages timing out in the middle. Afterwards, successive probes don't manage to get the dock to communicate properly over MST sideband properly. Many times sideband message timeouts from MST hubs are indicative of either the source or the sink dropping an ESI event, which can cause DRM's perspective of the topology's current state to go out of sync with reality. While it's tough to really know for sure what's happening to the dock, using userspace tools to write to DP_MSTM_CTRL in the middle of the MST link probing process does appear to make things flaky. It's possible that when we write to DP_MSTM_CTRL, the function that gets triggered to respond in the dock's firmware temporarily puts it in a state where it might end up not reporting an ESI to the source, or ends up dropping a sideband message we sent it. So, to fix this we make it so that when probing an MST topology, we respect it's current state. If the dock's already enabled, we simply read DP_MSTM_CTRL and disable the topology if it's value is not what we expected. Otherwise, we perform the normal MST probing dance. We avoid taking any action except if the state of the MST topology actually changes. This fixes MST sideband message timeouts and detection failures on my P50 with its ThinkPad dock. Signed-off-by: Lyude Paul Cc: stable@vger.kernel.org Cc: Karol Herbst Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/dispnv50/disp.c | 47 +++++++++++++++++++------ 1 file changed, 37 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index aec6ee1ff4e0..1a06c165a8df 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -1142,31 +1142,58 @@ nv50_mstm_enable(struct nv50_mstm *mstm, u8 dpcd, int state) int nv50_mstm_detect(struct nv50_mstm *mstm, u8 dpcd[8], int allow) { - int ret, state = 0; + struct drm_dp_aux *aux; + int ret; + bool old_state, new_state; + u8 mstm_ctrl; if (!mstm) return 0; - if (dpcd[0] >= 0x12) { - ret = drm_dp_dpcd_readb(mstm->mgr.aux, DP_MSTM_CAP, &dpcd[1]); + mutex_lock(&mstm->mgr.lock); + + old_state = mstm->mgr.mst_state; + new_state = old_state; + aux = mstm->mgr.aux; + + if (old_state) { + /* Just check that the MST hub is still as we expect it */ + ret = drm_dp_dpcd_readb(aux, DP_MSTM_CTRL, &mstm_ctrl); + if (ret < 0 || !(mstm_ctrl & DP_MST_EN)) { + DRM_DEBUG_KMS("Hub gone, disabling MST topology\n"); + new_state = false; + } + } else if (dpcd[0] >= 0x12) { + ret = drm_dp_dpcd_readb(aux, DP_MSTM_CAP, &dpcd[1]); if (ret < 0) - return ret; + goto probe_error; if (!(dpcd[1] & DP_MST_CAP)) dpcd[0] = 0x11; else - state = allow; + new_state = allow; } - ret = nv50_mstm_enable(mstm, dpcd[0], state); - if (ret) - return ret; + if (new_state == old_state) { + mutex_unlock(&mstm->mgr.lock); + return new_state; + } - ret = drm_dp_mst_topology_mgr_set_mst(&mstm->mgr, state); + ret = nv50_mstm_enable(mstm, dpcd[0], new_state); + if (ret) + goto probe_error; + + mutex_unlock(&mstm->mgr.lock); + + ret = drm_dp_mst_topology_mgr_set_mst(&mstm->mgr, new_state); if (ret) return nv50_mstm_enable(mstm, dpcd[0], 0); - return mstm->mgr.mst_state; + return new_state; + +probe_error: + mutex_unlock(&mstm->mgr.lock); + return ret; } static void From fa3cdf8d0b092c4561f9f017dfac409eb7644737 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Thu, 9 Aug 2018 18:22:06 -0400 Subject: [PATCH 0731/1762] drm/nouveau: Reset MST branching unit before enabling When probing a new MST device, it's not safe to make any assumptions about it's current state. While most well mannered MST hubs will just disable the branching unit on hotplug disconnects, this isn't enough to save us from various other scenarios that might have resulted in something writing to the MST branching unit before we got control of it. This could happen if a previous probe we tried failed, if we're booting in kexec context and the hub is still in the state the last kernel put it in, etc. Luckily; there is no reason we can't just reset the branching unit every time we enable a new topology. So, fix this by resetting it on enabling new topologies to ensure that we always start off with a clean, unmodified topology state on MST sinks. This fixes occasional hard-lockups on my P50's laptop dock (e.g. AUX times out all DPCD trasactions) observed after multiple docks, undocks, and module reloads. Signed-off-by: Lyude Paul Cc: stable@vger.kernel.org Cc: Karol Herbst Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/dispnv50/disp.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index 1a06c165a8df..5691dfa1db6f 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -1123,17 +1123,21 @@ nv50_mstm_enable(struct nv50_mstm *mstm, u8 dpcd, int state) int ret; if (dpcd >= 0x12) { - ret = drm_dp_dpcd_readb(mstm->mgr.aux, DP_MSTM_CTRL, &dpcd); + /* Even if we're enabling MST, start with disabling the + * branching unit to clear any sink-side MST topology state + * that wasn't set by us + */ + ret = drm_dp_dpcd_writeb(mstm->mgr.aux, DP_MSTM_CTRL, 0); if (ret < 0) return ret; - dpcd &= ~DP_MST_EN; - if (state) - dpcd |= DP_MST_EN; - - ret = drm_dp_dpcd_writeb(mstm->mgr.aux, DP_MSTM_CTRL, dpcd); - if (ret < 0) - return ret; + if (state) { + /* Now, start initializing */ + ret = drm_dp_dpcd_writeb(mstm->mgr.aux, DP_MSTM_CTRL, + DP_MST_EN); + if (ret < 0) + return ret; + } } return nvif_mthd(disp, 0, &args, sizeof(args)); From 79e765ad665da4b8aa7e9c878bd2fef837f6fea5 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Thu, 16 Aug 2018 16:13:13 -0400 Subject: [PATCH 0732/1762] drm/nouveau/drm/nouveau: Prevent handling ACPI HPD events too early On most systems with ACPI hotplugging support, it seems that we always receive a hotplug event once we re-enable EC interrupts even if the GPU hasn't even been resumed yet. This can cause problems since even though we schedule hpd_work to handle connector reprobing for us, hpd_work synchronizes on pm_runtime_get_sync() to wait until the device is ready to perform reprobing. Since runtime suspend/resume callbacks are disabled before the PM core calls ->suspend(), any calls to pm_runtime_get_sync() during this period will grab a runtime PM ref and return immediately with -EACCES. Because we schedule hpd_work from our ACPI HPD handler, and hpd_work synchronizes on pm_runtime_get_sync(), this causes us to launch a connector reprobe immediately even if the GPU isn't actually resumed just yet. This causes various warnings in dmesg and occasionally, also prevents some displays connected to the dedicated GPU from coming back up after suspend. Example: usb 1-4: USB disconnect, device number 14 usb 1-4.1: USB disconnect, device number 15 WARNING: CPU: 0 PID: 838 at drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h:170 nouveau_dp_detect+0x17e/0x370 [nouveau] CPU: 0 PID: 838 Comm: kworker/0:6 Not tainted 4.17.14-201.Lyude.bz1477182.V3.fc28.x86_64 #1 Hardware name: LENOVO 20EQS64N00/20EQS64N00, BIOS N1EET77W (1.50 ) 03/28/2018 Workqueue: events nouveau_display_hpd_work [nouveau] RIP: 0010:nouveau_dp_detect+0x17e/0x370 [nouveau] RSP: 0018:ffffa15143933cf0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8cb4f656c400 RCX: 0000000000000000 RDX: ffffa1514500e4e4 RSI: ffffa1514500e4e4 RDI: 0000000001009002 RBP: ffff8cb4f4a8a800 R08: ffffa15143933cfd R09: ffffa15143933cfc R10: 0000000000000000 R11: 0000000000000000 R12: ffff8cb4fb57a000 R13: ffff8cb4fb57a000 R14: ffff8cb4f4a8f800 R15: ffff8cb4f656c418 FS: 0000000000000000(0000) GS:ffff8cb51f400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f78ec938000 CR3: 000000073720a003 CR4: 00000000003606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ? _cond_resched+0x15/0x30 nouveau_connector_detect+0x2ce/0x520 [nouveau] ? _cond_resched+0x15/0x30 ? ww_mutex_lock+0x12/0x40 drm_helper_probe_detect_ctx+0x8b/0xe0 [drm_kms_helper] drm_helper_hpd_irq_event+0xa8/0x120 [drm_kms_helper] nouveau_display_hpd_work+0x2a/0x60 [nouveau] process_one_work+0x187/0x340 worker_thread+0x2e/0x380 ? pwq_unbound_release_workfn+0xd0/0xd0 kthread+0x112/0x130 ? kthread_create_worker_on_cpu+0x70/0x70 ret_from_fork+0x35/0x40 Code: 4c 8d 44 24 0d b9 00 05 00 00 48 89 ef ba 09 00 00 00 be 01 00 00 00 e8 e1 09 f8 ff 85 c0 0f 85 b2 01 00 00 80 7c 24 0c 03 74 02 <0f> 0b 48 89 ef e8 b8 07 f8 ff f6 05 51 1b c8 ff 02 0f 84 72 ff ---[ end trace 55d811b38fc8e71a ]--- So, to fix this we attempt to grab a runtime PM reference in the ACPI handler itself asynchronously. If the GPU is already awake (it will have normal hotplugging at this point) or runtime PM callbacks are currently disabled on the device, we drop our reference without updating the autosuspend delay. We only schedule connector reprobes when we successfully managed to queue up a resume request with our asynchronous PM ref. This also has the added benefit of preventing redundant connector reprobes from ACPI while the GPU is runtime resumed! Signed-off-by: Lyude Paul Cc: stable@vger.kernel.org Cc: Karol Herbst Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1477182#c41 Signed-off-by: Lyude Paul Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_display.c | 26 +++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 42e7c35e3fba..e4024af5a46f 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -377,15 +377,29 @@ nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val, { struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb); struct acpi_bus_event *info = data; + int ret; if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) { if (info->type == ACPI_VIDEO_NOTIFY_PROBE) { - /* - * This may be the only indication we receive of a - * connector hotplug on a runtime suspended GPU, - * schedule hpd_work to check. - */ - schedule_work(&drm->hpd_work); + ret = pm_runtime_get(drm->dev->dev); + if (ret == 1 || ret == -EACCES) { + /* If the GPU is already awake, or in a state + * where we can't wake it up, it can handle + * it's own hotplug events. + */ + pm_runtime_put_autosuspend(drm->dev->dev); + } else if (ret == 0) { + /* This may be the only indication we receive + * of a connector hotplug on a runtime + * suspended GPU, schedule hpd_work to check. + */ + NV_DEBUG(drm, "ACPI requested connector reprobe\n"); + schedule_work(&drm->hpd_work); + pm_runtime_put_noidle(drm->dev->dev); + } else { + NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n", + ret); + } /* acpi-video should not generate keypresses for this */ return NOTIFY_BAD; From 2f7ca781fd382cf8dde73ed36dfdd93fd05b3332 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Tue, 7 Aug 2018 17:32:48 -0400 Subject: [PATCH 0733/1762] drm/nouveau/drm/nouveau: Don't forget to cancel hpd_work on suspend/unload Currently, there's nothing in nouveau that actually cancels this work struct. So, cancel it on suspend/unload. Otherwise, if we're unlucky enough hpd_work might try to keep running up until the system is suspended. Signed-off-by: Lyude Paul Cc: stable@vger.kernel.org Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_display.c | 9 ++++++--- drivers/gpu/drm/nouveau/nouveau_display.h | 2 +- drivers/gpu/drm/nouveau/nouveau_drm.c | 2 +- 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index e4024af5a46f..540c0cbbfcee 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -442,7 +442,7 @@ nouveau_display_init(struct drm_device *dev) } void -nouveau_display_fini(struct drm_device *dev, bool suspend) +nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime) { struct nouveau_display *disp = nouveau_display(dev); struct nouveau_drm *drm = nouveau_drm(dev); @@ -467,6 +467,9 @@ nouveau_display_fini(struct drm_device *dev, bool suspend) } drm_connector_list_iter_end(&conn_iter); + if (!runtime) + cancel_work_sync(&drm->hpd_work); + drm_kms_helper_poll_disable(dev); disp->fini(dev); } @@ -635,11 +638,11 @@ nouveau_display_suspend(struct drm_device *dev, bool runtime) } } - nouveau_display_fini(dev, true); + nouveau_display_fini(dev, true, runtime); return 0; } - nouveau_display_fini(dev, true); + nouveau_display_fini(dev, true, runtime); list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { struct nouveau_framebuffer *nouveau_fb; diff --git a/drivers/gpu/drm/nouveau/nouveau_display.h b/drivers/gpu/drm/nouveau/nouveau_display.h index 54aa7c3fa42d..ff92b54ce448 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.h +++ b/drivers/gpu/drm/nouveau/nouveau_display.h @@ -62,7 +62,7 @@ nouveau_display(struct drm_device *dev) int nouveau_display_create(struct drm_device *dev); void nouveau_display_destroy(struct drm_device *dev); int nouveau_display_init(struct drm_device *dev); -void nouveau_display_fini(struct drm_device *dev, bool suspend); +void nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime); int nouveau_display_suspend(struct drm_device *dev, bool runtime); void nouveau_display_resume(struct drm_device *dev, bool runtime); int nouveau_display_vblank_enable(struct drm_device *, unsigned int); diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 04f704b77a3c..f1a119113d04 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -627,7 +627,7 @@ nouveau_drm_unload(struct drm_device *dev) nouveau_debugfs_fini(drm); if (dev->mode_config.num_crtc) - nouveau_display_fini(dev, false); + nouveau_display_fini(dev, false, false); nouveau_display_destroy(dev); nouveau_bios_takedown(dev); From d5986a1c4dcd00cb8b9eee4a56ee93868222a9a2 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Thu, 30 Aug 2018 13:16:28 -0400 Subject: [PATCH 0734/1762] drm/nouveau: Fix nouveau_connector_ddc_detect() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It looks like that when we moved over to using drm_connector_for_each_possible_encoder() in nouveau, that one rather important part of this function got dropped by accident: /* Right v here */ for (i = 0; nv_encoder = NULL, i < DRM_CONNECTOR_MAX_ENCODER; i++) { int id = connector->encoder_ids[i]; if (id == 0) break; Since it's rather difficult to notice: the conditional in this loop is actually: nv_encoder = NULL, i < DRM_CONNECTOR_MAX_ENCODER Meaning that all early breaks result in nv_encoder keeping it's value, otherwise nv_encoder = NULL. Ugh. Since this got dropped, nouveau_connector_ddc_detect() now returns an encoder for every single connector, regardless of whether or not it's detected: [ 1780.056185] nouveau 0000:01:00.0: DRM: DDC responded, but no EDID for DP-2 So: fix this to ensure we only return an encoder if we actually found one, and clean up the rest of the function while we're at it since it's nearly impossible to read properly. Changes since v1: - Don't skip ddc probing for LVDS if we can't switch DDC through vga-switcheroo, just do the DDC probing without calling vga_switcheroo_lock_ddc() - skeggsb Signed-off-by: Lyude Paul Cc: Ville Syrjälä Fixes: ddba766dd07e ("drm/nouveau: Use drm_connector_for_each_possible_encoder()") Reviewed-by: Ville Syrjälä Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_connector.c | 49 ++++++++++++--------- 1 file changed, 28 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 76660bc1ccfb..259ee5039125 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -412,9 +412,10 @@ nouveau_connector_ddc_detect(struct drm_connector *connector) struct nouveau_connector *nv_connector = nouveau_connector(connector); struct nouveau_drm *drm = nouveau_drm(dev); struct nvkm_gpio *gpio = nvxx_gpio(&drm->client.device); - struct nouveau_encoder *nv_encoder = NULL; + struct nouveau_encoder *nv_encoder = NULL, *found = NULL; struct drm_encoder *encoder; - int i, panel = -ENODEV; + int i, ret, panel = -ENODEV; + bool switcheroo_ddc = false; /* eDP panels need powering on by us (if the VBIOS doesn't default it * to on) before doing any AUX channel transactions. LVDS panel power @@ -431,37 +432,43 @@ nouveau_connector_ddc_detect(struct drm_connector *connector) drm_connector_for_each_possible_encoder(connector, encoder, i) { nv_encoder = nouveau_encoder(encoder); - if (nv_encoder->dcb->type == DCB_OUTPUT_DP) { - int ret = nouveau_dp_detect(nv_encoder); + switch (nv_encoder->dcb->type) { + case DCB_OUTPUT_DP: + ret = nouveau_dp_detect(nv_encoder); if (ret == NOUVEAU_DP_MST) return NULL; - if (ret == NOUVEAU_DP_SST) + else if (ret == NOUVEAU_DP_SST) + found = nv_encoder; + + break; + case DCB_OUTPUT_LVDS: + switcheroo_ddc = !!(vga_switcheroo_handler_flags() & + VGA_SWITCHEROO_CAN_SWITCH_DDC); + /* fall-through */ + default: + if (!nv_encoder->i2c) break; - } else - if ((vga_switcheroo_handler_flags() & - VGA_SWITCHEROO_CAN_SWITCH_DDC) && - nv_encoder->dcb->type == DCB_OUTPUT_LVDS && - nv_encoder->i2c) { - int ret; - vga_switcheroo_lock_ddc(dev->pdev); - ret = nvkm_probe_i2c(nv_encoder->i2c, 0x50); - vga_switcheroo_unlock_ddc(dev->pdev); - if (ret) - break; - } else - if (nv_encoder->i2c) { + + if (switcheroo_ddc) + vga_switcheroo_lock_ddc(dev->pdev); if (nvkm_probe_i2c(nv_encoder->i2c, 0x50)) - break; + found = nv_encoder; + if (switcheroo_ddc) + vga_switcheroo_unlock_ddc(dev->pdev); + + break; } + if (found) + break; } /* eDP panel not detected, restore panel power GPIO to previous * state to avoid confusing the SOR for other output types. */ - if (!nv_encoder && panel == 0) + if (!found && panel == 0) nvkm_gpio_set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, panel); - return nv_encoder; + return found; } static struct nouveau_encoder * From a43b16dda2d7485f5c5aed075c1dc9785e339515 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 28 Aug 2018 14:10:34 +1000 Subject: [PATCH 0735/1762] drm/nouveau: fix oops in client init failure path The NV_ERROR macro requires drm->client to be initialised, which it may not be at this stage of the init process. Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_drm.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index f1a119113d04..74d2283f2c28 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -230,7 +230,7 @@ nouveau_cli_init(struct nouveau_drm *drm, const char *sname, mutex_unlock(&drm->master.lock); } if (ret) { - NV_ERROR(drm, "Client allocation failed: %d\n", ret); + NV_PRINTK(err, cli, "Client allocation failed: %d\n", ret); goto done; } @@ -240,37 +240,37 @@ nouveau_cli_init(struct nouveau_drm *drm, const char *sname, }, sizeof(struct nv_device_v0), &cli->device); if (ret) { - NV_ERROR(drm, "Device allocation failed: %d\n", ret); + NV_PRINTK(err, cli, "Device allocation failed: %d\n", ret); goto done; } ret = nvif_mclass(&cli->device.object, mmus); if (ret < 0) { - NV_ERROR(drm, "No supported MMU class\n"); + NV_PRINTK(err, cli, "No supported MMU class\n"); goto done; } ret = nvif_mmu_init(&cli->device.object, mmus[ret].oclass, &cli->mmu); if (ret) { - NV_ERROR(drm, "MMU allocation failed: %d\n", ret); + NV_PRINTK(err, cli, "MMU allocation failed: %d\n", ret); goto done; } ret = nvif_mclass(&cli->mmu.object, vmms); if (ret < 0) { - NV_ERROR(drm, "No supported VMM class\n"); + NV_PRINTK(err, cli, "No supported VMM class\n"); goto done; } ret = nouveau_vmm_init(cli, vmms[ret].oclass, &cli->vmm); if (ret) { - NV_ERROR(drm, "VMM allocation failed: %d\n", ret); + NV_PRINTK(err, cli, "VMM allocation failed: %d\n", ret); goto done; } ret = nvif_mclass(&cli->mmu.object, mems); if (ret < 0) { - NV_ERROR(drm, "No supported MEM class\n"); + NV_PRINTK(err, cli, "No supported MEM class\n"); goto done; } From 51ed833c881b9d96557c773f6a37018d79e29a46 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 28 Aug 2018 14:10:42 +1000 Subject: [PATCH 0736/1762] drm/nouveau/mmu: don't attempt to dereference vmm without valid instance pointer Fixes oopses in certain failure paths. Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c index de269eb482dd..7459def78d50 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c @@ -1423,7 +1423,7 @@ nvkm_vmm_get(struct nvkm_vmm *vmm, u8 page, u64 size, struct nvkm_vma **pvma) void nvkm_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst) { - if (vmm->func->part && inst) { + if (inst && vmm->func->part) { mutex_lock(&vmm->mutex); vmm->func->part(vmm, inst); mutex_unlock(&vmm->mutex); From 0a6986c6595e9afd20ff7280dab36431c1e467f8 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 4 Sep 2018 15:56:57 +1000 Subject: [PATCH 0737/1762] drm/nouveau/TBDdevinit: don't fail when PMU/PRE_OS is missing from VBIOS This Falcon application doesn't appear to be present on some newer systems, so let's not fail init if we can't find it. TBD: is there a way to determine whether it *should* be there? Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c index b80618e35491..d65959ef0564 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c @@ -158,7 +158,8 @@ gm200_devinit_post(struct nvkm_devinit *base, bool post) } /* load and execute some other ucode image (bios therm?) */ - return pmu_load(init, 0x01, post, NULL, NULL); + pmu_load(init, 0x01, post, NULL, NULL); + return 0; } static const struct nvkm_devinit_func From 606557708fa06ebf21372d8fabf6f97529ab2349 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 4 Sep 2018 15:57:04 +1000 Subject: [PATCH 0738/1762] drm/nouveau/disp: remove unused struct member Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c | 1 - drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h | 1 - 2 files changed, 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c index be9e7f8c3b23..4b6973f90309 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c @@ -245,7 +245,6 @@ nvkm_outp_ctor(const struct nvkm_outp_func *func, struct nvkm_disp *disp, outp->index = index; outp->info = *dcbE; outp->i2c = nvkm_i2c_bus_find(i2c, dcbE->i2c_index); - outp->or = ffs(outp->info.or) - 1; OUTP_DBG(outp, "type %02x loc %d or %d link %d con %x " "edid %x bus %d head %x", diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h index ea84d7d5741a..776e36972daa 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h @@ -13,7 +13,6 @@ struct nvkm_outp { struct dcb_output info; struct nvkm_i2c_bus *i2c; - int or; struct list_head head; struct nvkm_conn *conn; From f6d52b2172b1adfde010df34730290c282ee641b Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 4 Sep 2018 15:57:07 +1000 Subject: [PATCH 0739/1762] drm/nouveau/disp: move eDP panel power handling We need to do this earlier to prevent aux channel timeouts in resume paths on certain systems. Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_connector.c | 23 +----------- drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c | 37 +++++++++++++++++-- 2 files changed, 35 insertions(+), 25 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 259ee5039125..247f72cc4d10 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -409,26 +409,11 @@ static struct nouveau_encoder * nouveau_connector_ddc_detect(struct drm_connector *connector) { struct drm_device *dev = connector->dev; - struct nouveau_connector *nv_connector = nouveau_connector(connector); - struct nouveau_drm *drm = nouveau_drm(dev); - struct nvkm_gpio *gpio = nvxx_gpio(&drm->client.device); struct nouveau_encoder *nv_encoder = NULL, *found = NULL; struct drm_encoder *encoder; - int i, ret, panel = -ENODEV; + int i, ret; bool switcheroo_ddc = false; - /* eDP panels need powering on by us (if the VBIOS doesn't default it - * to on) before doing any AUX channel transactions. LVDS panel power - * is handled by the SOR itself, and not required for LVDS DDC. - */ - if (nv_connector->type == DCB_CONNECTOR_eDP) { - panel = nvkm_gpio_get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff); - if (panel == 0) { - nvkm_gpio_set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1); - msleep(300); - } - } - drm_connector_for_each_possible_encoder(connector, encoder, i) { nv_encoder = nouveau_encoder(encoder); @@ -462,12 +447,6 @@ nouveau_connector_ddc_detect(struct drm_connector *connector) break; } - /* eDP panel not detected, restore panel power GPIO to previous - * state to avoid confusing the SOR for other output types. - */ - if (!found && panel == 0) - nvkm_gpio_set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, panel); - return found; } diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c index 7c5bed29ffef..bb34ee77458e 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c @@ -28,6 +28,7 @@ #include #include +#include #include #include @@ -491,7 +492,7 @@ done: return ret; } -static void +static bool nvkm_dp_enable(struct nvkm_dp *dp, bool enable) { struct nvkm_i2c_aux *aux = dp->aux; @@ -505,7 +506,7 @@ nvkm_dp_enable(struct nvkm_dp *dp, bool enable) if (!nvkm_rdaux(aux, DPCD_RC00_DPCD_REV, dp->dpcd, sizeof(dp->dpcd))) - return; + return true; } if (dp->present) { @@ -515,6 +516,7 @@ nvkm_dp_enable(struct nvkm_dp *dp, bool enable) } atomic_set(&dp->lt.done, 0); + return false; } static int @@ -555,9 +557,38 @@ nvkm_dp_fini(struct nvkm_outp *outp) static void nvkm_dp_init(struct nvkm_outp *outp) { + struct nvkm_gpio *gpio = outp->disp->engine.subdev.device->gpio; struct nvkm_dp *dp = nvkm_dp(outp); + nvkm_notify_put(&dp->outp.conn->hpd); - nvkm_dp_enable(dp, true); + + /* eDP panels need powering on by us (if the VBIOS doesn't default it + * to on) before doing any AUX channel transactions. LVDS panel power + * is handled by the SOR itself, and not required for LVDS DDC. + */ + if (dp->outp.conn->info.type == DCB_CONNECTOR_eDP) { + int power = nvkm_gpio_get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff); + if (power == 0) + nvkm_gpio_set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1); + + /* We delay here unconditionally, even if already powered, + * because some laptop panels having a significant resume + * delay before the panel begins responding. + * + * This is likely a bit of a hack, but no better idea for + * handling this at the moment. + */ + msleep(300); + + /* If the eDP panel can't be detected, we need to restore + * the panel power GPIO to avoid breaking another output. + */ + if (!nvkm_dp_enable(dp, true) && power == 0) + nvkm_gpio_set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 0); + } else { + nvkm_dp_enable(dp, true); + } + nvkm_notify_get(&dp->hpd); } From e04cfdc9b7398c60dbc70212415ea63b6c6a93ae Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 4 Sep 2018 15:57:09 +1000 Subject: [PATCH 0740/1762] drm/nouveau/disp: fix DP disable race If a HPD pulse signalling the need to retrain the link occurs between the KMS driver releasing the output and the supervisor interrupt that finishes the teardown, it was possible get a NULL-ptr deref. Avoid this by marking the link as inactive earlier. Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c | 17 ++++++++++++----- drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c | 6 +++--- drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c | 2 ++ drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h | 3 ++- 4 files changed, 19 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c index bb34ee77458e..5f301e632599 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c @@ -413,14 +413,10 @@ nvkm_dp_train(struct nvkm_dp *dp, u32 dataKBps) } static void -nvkm_dp_release(struct nvkm_outp *outp, struct nvkm_ior *ior) +nvkm_dp_disable(struct nvkm_outp *outp, struct nvkm_ior *ior) { struct nvkm_dp *dp = nvkm_dp(outp); - /* Prevent link from being retrained if sink sends an IRQ. */ - atomic_set(&dp->lt.done, 0); - ior->dp.nr = 0; - /* Execute DisableLT script from DP Info Table. */ nvbios_init(&ior->disp->engine.subdev, dp->info.script[4], init.outp = &dp->outp.info; @@ -429,6 +425,16 @@ nvkm_dp_release(struct nvkm_outp *outp, struct nvkm_ior *ior) ); } +static void +nvkm_dp_release(struct nvkm_outp *outp) +{ + struct nvkm_dp *dp = nvkm_dp(outp); + + /* Prevent link from being retrained if sink sends an IRQ. */ + atomic_set(&dp->lt.done, 0); + dp->outp.ior->dp.nr = 0; +} + static int nvkm_dp_acquire(struct nvkm_outp *outp) { @@ -607,6 +613,7 @@ nvkm_dp_func = { .fini = nvkm_dp_fini, .acquire = nvkm_dp_acquire, .release = nvkm_dp_release, + .disable = nvkm_dp_disable, }; static int diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c index f89c7b977aa5..def005dd5fda 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c @@ -501,11 +501,11 @@ nv50_disp_super_2_0(struct nv50_disp *disp, struct nvkm_head *head) nv50_disp_super_ied_off(head, ior, 2); /* If we're shutting down the OR's only active head, execute - * the output path's release function. + * the output path's disable function. */ if (ior->arm.head == (1 << head->id)) { - if ((outp = ior->arm.outp) && outp->func->release) - outp->func->release(outp, ior); + if ((outp = ior->arm.outp) && outp->func->disable) + outp->func->disable(outp, ior); } } diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c index 4b6973f90309..9fcaf3147eb8 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c @@ -93,6 +93,8 @@ nvkm_outp_release(struct nvkm_outp *outp, u8 user) if (ior) { outp->acquired &= ~user; if (!outp->acquired) { + if (outp->func->release && outp->ior) + outp->func->release(outp); outp->ior->asy.outp = NULL; outp->ior = NULL; } diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h index 776e36972daa..96272ecccb59 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h @@ -40,7 +40,8 @@ struct nvkm_outp_func { void (*init)(struct nvkm_outp *); void (*fini)(struct nvkm_outp *); int (*acquire)(struct nvkm_outp *); - void (*release)(struct nvkm_outp *, struct nvkm_ior *); + void (*release)(struct nvkm_outp *); + void (*disable)(struct nvkm_outp *, struct nvkm_ior *); }; #define OUTP_MSG(o,l,f,a...) do { \ From 53b0cc46f27cfc2cadca609b503a7d92b5185a47 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 4 Sep 2018 15:57:11 +1000 Subject: [PATCH 0741/1762] drm/nouveau/disp/gm200-: enforce identity-mapped SOR assignment for LVDS/eDP panels Fixes eDP backlight issues on more recent laptops. Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c | 14 ++++++++++++++ drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h | 1 + drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c | 15 ++++++++++++--- drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h | 1 + 4 files changed, 28 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c index 32fa94a9773f..cbd33e87b799 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c @@ -275,6 +275,7 @@ nvkm_disp_oneinit(struct nvkm_engine *engine) struct nvkm_outp *outp, *outt, *pair; struct nvkm_conn *conn; struct nvkm_head *head; + struct nvkm_ior *ior; struct nvbios_connE connE; struct dcb_output dcbE; u8 hpd = 0, ver, hdr; @@ -399,6 +400,19 @@ nvkm_disp_oneinit(struct nvkm_engine *engine) return ret; } + /* Enforce identity-mapped SOR assignment for panels, which have + * certain bits (ie. backlight controls) wired to a specific SOR. + */ + list_for_each_entry(outp, &disp->outp, head) { + if (outp->conn->info.type == DCB_CONNECTOR_LVDS || + outp->conn->info.type == DCB_CONNECTOR_eDP) { + ior = nvkm_ior_find(disp, SOR, ffs(outp->info.or) - 1); + if (!WARN_ON(!ior)) + ior->identity = true; + outp->identity = true; + } + } + i = 0; list_for_each_entry(head, &disp->head, head) i = max(i, head->id + 1); diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h index e0b4e0c5704e..19911211a12a 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h @@ -16,6 +16,7 @@ struct nvkm_ior { char name[8]; struct list_head head; + bool identity; struct nvkm_ior_state { struct nvkm_outp *outp; diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c index 9fcaf3147eb8..c62030c96fba 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c @@ -129,17 +129,26 @@ nvkm_outp_acquire(struct nvkm_outp *outp, u8 user) if (proto == UNKNOWN) return -ENOSYS; + /* Deal with panels requiring identity-mapped SOR assignment. */ + if (outp->identity) { + ior = nvkm_ior_find(outp->disp, SOR, ffs(outp->info.or) - 1); + if (WARN_ON(!ior)) + return -ENOSPC; + return nvkm_outp_acquire_ior(outp, user, ior); + } + /* First preference is to reuse the OR that is currently armed * on HW, if any, in order to prevent unnecessary switching. */ list_for_each_entry(ior, &outp->disp->ior, head) { - if (!ior->asy.outp && ior->arm.outp == outp) + if (!ior->identity && !ior->asy.outp && ior->arm.outp == outp) return nvkm_outp_acquire_ior(outp, user, ior); } /* Failing that, a completely unused OR is the next best thing. */ list_for_each_entry(ior, &outp->disp->ior, head) { - if (!ior->asy.outp && ior->type == type && !ior->arm.outp && + if (!ior->identity && + !ior->asy.outp && ior->type == type && !ior->arm.outp && (ior->func->route.set || ior->id == __ffs(outp->info.or))) return nvkm_outp_acquire_ior(outp, user, ior); } @@ -148,7 +157,7 @@ nvkm_outp_acquire(struct nvkm_outp *outp, u8 user) * but will be released during the next modeset. */ list_for_each_entry(ior, &outp->disp->ior, head) { - if (!ior->asy.outp && ior->type == type && + if (!ior->identity && !ior->asy.outp && ior->type == type && (ior->func->route.set || ior->id == __ffs(outp->info.or))) return nvkm_outp_acquire_ior(outp, user, ior); } diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h index 96272ecccb59..6c8aa5cfed9d 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h @@ -16,6 +16,7 @@ struct nvkm_outp { struct list_head head; struct nvkm_conn *conn; + bool identity; /* Assembly state. */ #define NVKM_OUTP_PRIV 1 From 644e2537fdc77baeeefc829524937bca64329f82 Mon Sep 17 00:00:00 2001 From: Heinz Mauelshagen Date: Thu, 6 Sep 2018 18:33:39 +0200 Subject: [PATCH 0742/1762] dm raid: fix stripe adding reshape deadlock When initiating a stripe adding reshape, a deadlock between md_stop_writes() waiting for the sync thread to stop and the running sync thread waiting for inactive stripes occurs (this frequently happens on single-core but rarely on multi-core systems). Fix this deadlock by setting MD_RECOVERY_WAIT to have the main MD resynchronization thread worker (md_do_sync()) bail out when initiating the reshape via constructor arguments. Signed-off-by: Heinz Mauelshagen Signed-off-by: Mike Snitzer --- drivers/md/dm-raid.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index d8406e0b4540..9129c5e0c280 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3869,14 +3869,13 @@ static int rs_start_reshape(struct raid_set *rs) struct mddev *mddev = &rs->md; struct md_personality *pers = mddev->pers; + /* Don't allow the sync thread to work until the table gets reloaded. */ + set_bit(MD_RECOVERY_WAIT, &mddev->recovery); + r = rs_setup_reshape(rs); if (r) return r; - /* Need to be resumed to be able to start reshape, recovery is frozen until raid_resume() though */ - if (test_and_clear_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags)) - mddev_resume(mddev); - /* * Check any reshape constraints enforced by the personalility * @@ -3900,10 +3899,6 @@ static int rs_start_reshape(struct raid_set *rs) } } - /* Suspend because a resume will happen in raid_resume() */ - set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags); - mddev_suspend(mddev); - /* * Now reshape got set up, update superblocks to * reflect the fact so that a table reload will From c44a5ee803d2b7ed8c2e6ce24a5c4dd60778886e Mon Sep 17 00:00:00 2001 From: Heinz Mauelshagen Date: Thu, 6 Sep 2018 18:33:40 +0200 Subject: [PATCH 0743/1762] dm raid: fix rebuild of specific devices by updating superblock Update superblock when particular devices are requested via rebuild (e.g. lvconvert --replace ...) to avoid spurious failure with the "New device injected into existing raid set without 'delta_disks' or 'rebuild' parameter specified" error message. Signed-off-by: Heinz Mauelshagen Signed-off-by: Mike Snitzer --- drivers/md/dm-raid.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 9129c5e0c280..6d961db8760e 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3126,6 +3126,11 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv) set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); rs_set_new(rs); } else if (rs_is_recovering(rs)) { + /* Rebuild particular devices */ + if (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags)) { + set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); + rs_setup_recovery(rs, MaxSector); + } /* A recovering raid set may be resized */ ; /* skip setup rs */ } else if (rs_is_reshaping(rs)) { From 36a240a706d43383bbdd377522501ddd2e5771f6 Mon Sep 17 00:00:00 2001 From: Heinz Mauelshagen Date: Thu, 6 Sep 2018 22:54:29 +0200 Subject: [PATCH 0744/1762] dm raid: fix RAID leg rebuild errors On fast devices such as NVMe, a flaw in rs_get_progress() results in false target status output when userspace lvm2 requests leg rebuilds (symptom of the failure is device health chars 'aaaaaaaa' instead of expected 'aAaAAAAA' causing lvm2 to fail). The correct sync action state definitions already exist in decipher_sync_action() so fix rs_get_progress() to use it. Change decipher_sync_action() to return an enum rather than a string for the sync states and call it from rs_get_progress(). Introduce sync_str() to translate from enum to the string that is needed by raid_status(). Signed-off-by: Heinz Mauelshagen Signed-off-by: Mike Snitzer --- drivers/md/dm-raid.c | 82 +++++++++++++++++++++++++------------------- 1 file changed, 47 insertions(+), 35 deletions(-) diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 6d961db8760e..fceeb962f43b 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3332,32 +3332,53 @@ static int raid_map(struct dm_target *ti, struct bio *bio) return DM_MAPIO_SUBMITTED; } -/* Return string describing the current sync action of @mddev */ -static const char *decipher_sync_action(struct mddev *mddev, unsigned long recovery) +/* Return sync state string for @state */ +enum sync_state { st_frozen, st_reshape, st_resync, st_check, st_repair, st_recover, st_idle }; +static const char *sync_str(enum sync_state state) +{ + /* Has to be in above sync_state order! */ + static const char *sync_strs[] = { + "frozen", + "reshape", + "resync", + "check", + "repair", + "recover", + "idle" + }; + + return __within_range(state, 0, ARRAY_SIZE(sync_strs) - 1) ? sync_strs[state] : "undef"; +}; + +/* Return enum sync_state for @mddev derived from @recovery flags */ +static const enum sync_state decipher_sync_action(struct mddev *mddev, unsigned long recovery) { if (test_bit(MD_RECOVERY_FROZEN, &recovery)) - return "frozen"; + return st_frozen; - /* The MD sync thread can be done with io but still be running */ + /* The MD sync thread can be done with io or be interrupted but still be running */ if (!test_bit(MD_RECOVERY_DONE, &recovery) && (test_bit(MD_RECOVERY_RUNNING, &recovery) || (!mddev->ro && test_bit(MD_RECOVERY_NEEDED, &recovery)))) { if (test_bit(MD_RECOVERY_RESHAPE, &recovery)) - return "reshape"; + return st_reshape; if (test_bit(MD_RECOVERY_SYNC, &recovery)) { if (!test_bit(MD_RECOVERY_REQUESTED, &recovery)) - return "resync"; - else if (test_bit(MD_RECOVERY_CHECK, &recovery)) - return "check"; - return "repair"; + return st_resync; + if (test_bit(MD_RECOVERY_CHECK, &recovery)) + return st_check; + return st_repair; } if (test_bit(MD_RECOVERY_RECOVER, &recovery)) - return "recover"; + return st_recover; + + if (mddev->reshape_position != MaxSector) + return st_reshape; } - return "idle"; + return st_idle; } /* @@ -3391,6 +3412,7 @@ static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery, sector_t resync_max_sectors) { sector_t r; + enum sync_state state; struct mddev *mddev = &rs->md; clear_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); @@ -3401,20 +3423,14 @@ static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery, set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); } else { - if (!test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags) && - !test_bit(MD_RECOVERY_INTR, &recovery) && - (test_bit(MD_RECOVERY_NEEDED, &recovery) || - test_bit(MD_RECOVERY_RESHAPE, &recovery) || - test_bit(MD_RECOVERY_RUNNING, &recovery))) - r = mddev->curr_resync_completed; - else - r = mddev->recovery_cp; + state = decipher_sync_action(mddev, recovery); - if (r >= resync_max_sectors && - (!test_bit(MD_RECOVERY_REQUESTED, &recovery) || - (!test_bit(MD_RECOVERY_FROZEN, &recovery) && - !test_bit(MD_RECOVERY_NEEDED, &recovery) && - !test_bit(MD_RECOVERY_RUNNING, &recovery)))) { + if (state == st_idle && !test_bit(MD_RECOVERY_INTR, &recovery)) + r = mddev->recovery_cp; + else + r = mddev->curr_resync_completed; + + if (state == st_idle && r >= resync_max_sectors) { /* * Sync complete. */ @@ -3422,24 +3438,20 @@ static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery, if (test_bit(MD_RECOVERY_RECOVER, &recovery)) set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); - } else if (test_bit(MD_RECOVERY_RECOVER, &recovery)) { + } else if (state == st_recover) /* * In case we are recovering, the array is not in sync * and health chars should show the recovering legs. */ ; - - } else if (test_bit(MD_RECOVERY_SYNC, &recovery) && - !test_bit(MD_RECOVERY_REQUESTED, &recovery)) { + else if (state == st_resync) /* * If "resync" is occurring, the raid set * is or may be out of sync hence the health * characters shall be 'a'. */ set_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags); - - } else if (test_bit(MD_RECOVERY_RESHAPE, &recovery) && - !test_bit(MD_RECOVERY_REQUESTED, &recovery)) { + else if (state == st_reshape) /* * If "reshape" is occurring, the raid set * is or may be out of sync hence the health @@ -3447,7 +3459,7 @@ static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery, */ set_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags); - } else if (test_bit(MD_RECOVERY_REQUESTED, &recovery)) { + else if (state == st_check || state == st_repair) /* * If "check" or "repair" is occurring, the raid set has * undergone an initial sync and the health characters @@ -3455,12 +3467,12 @@ static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery, */ set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); - } else { + else { struct md_rdev *rdev; /* * We are idle and recovery is needed, prevent 'A' chars race - * caused by components still set to in-sync by constrcuctor. + * caused by components still set to in-sync by constructor. */ if (test_bit(MD_RECOVERY_NEEDED, &recovery)) set_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags); @@ -3524,7 +3536,7 @@ static void raid_status(struct dm_target *ti, status_type_t type, progress = rs_get_progress(rs, recovery, resync_max_sectors); resync_mismatches = (mddev->last_sync_action && !strcasecmp(mddev->last_sync_action, "check")) ? atomic64_read(&mddev->resync_mismatches) : 0; - sync_action = decipher_sync_action(&rs->md, recovery); + sync_action = sync_str(decipher_sync_action(&rs->md, recovery)); /* HM FIXME: do we want another state char for raid0? It shows 'D'/'A'/'-' now */ for (i = 0; i < rs->raid_disks; i++) From 5380c05b682991a6818c3755d450a3e87eeac0e5 Mon Sep 17 00:00:00 2001 From: Heinz Mauelshagen Date: Thu, 6 Sep 2018 14:02:54 -0400 Subject: [PATCH 0745/1762] dm raid: bump target version, update comments and documentation Bump target version to reflect the documented fixes are available. Also fix some code comments (typos and clarity). Signed-off-by: Heinz Mauelshagen Signed-off-by: Mike Snitzer --- Documentation/device-mapper/dm-raid.txt | 4 ++++ drivers/md/dm-raid.c | 10 ++++++---- 2 files changed, 10 insertions(+), 4 deletions(-) diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt index 390c145f01d7..52a719b49afd 100644 --- a/Documentation/device-mapper/dm-raid.txt +++ b/Documentation/device-mapper/dm-raid.txt @@ -348,3 +348,7 @@ Version History 1.13.1 Fix deadlock caused by early md_stop_writes(). Also fix size an state races. 1.13.2 Fix raid redundancy validation and avoid keeping raid set frozen +1.14.0 Fix reshape race on small devices. Fix stripe adding reshape + deadlock/potential data corruption. Update superblock when + specific devices are requested via rebuild. Fix RAID leg + rebuild errors. diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index fceeb962f43b..5ba067fa0c72 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2010-2011 Neil Brown - * Copyright (C) 2010-2017 Red Hat, Inc. All rights reserved. + * Copyright (C) 2010-2018 Red Hat, Inc. All rights reserved. * * This file is released under the GPL. */ @@ -2626,7 +2626,7 @@ static int rs_adjust_data_offsets(struct raid_set *rs) return 0; } - /* HM FIXME: get InSync raid_dev? */ + /* HM FIXME: get In_Sync raid_dev? */ rdev = &rs->dev[0].rdev; if (rs->delta_disks < 0) { @@ -3224,6 +3224,8 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv) /* Start raid set read-only and assumed clean to change in raid_resume() */ rs->md.ro = 1; rs->md.in_sync = 1; + + /* Keep array frozen */ set_bit(MD_RECOVERY_FROZEN, &rs->md.recovery); /* Has to be held on running the array */ @@ -3247,7 +3249,7 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv) rs->callbacks.congested_fn = raid_is_congested; dm_table_add_target_callbacks(ti->table, &rs->callbacks); - /* If raid4/5/6 journal mode explictely requested (only possible with journal dev) -> set it */ + /* If raid4/5/6 journal mode explicitly requested (only possible with journal dev) -> set it */ if (test_bit(__CTR_FLAG_JOURNAL_MODE, &rs->ctr_flags)) { r = r5c_journal_mode_set(&rs->md, rs->journal_dev.mode); if (r) { @@ -4012,7 +4014,7 @@ static void raid_resume(struct dm_target *ti) static struct target_type raid_target = { .name = "raid", - .version = {1, 13, 2}, + .version = {1, 14, 0}, .module = THIS_MODULE, .ctr = raid_ctr, .dtr = raid_dtr, From e2c631ba75a7e727e8db0a9d30a06bfd434adb3a Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 5 Sep 2018 10:41:58 +0200 Subject: [PATCH 0746/1762] clocksource: Revert "Remove kthread" I turns out that the silly spawn kthread from worker was actually needed. clocksource_watchdog_kthread() cannot be called directly from clocksource_watchdog_work(), because clocksource_select() calls timekeeping_notify() which uses stop_machine(). One cannot use stop_machine() from a workqueue() due lock inversions wrt CPU hotplug. Revert the patch but add a comment that explain why we jump through such apparently silly hoops. Fixes: 7197e77abcb6 ("clocksource: Remove kthread") Reported-by: Siegfried Metz Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Thomas Gleixner Tested-by: Niklas Cassel Tested-by: Kevin Shanahan Tested-by: viktor_jaegerskuepper@freenet.de Tested-by: Siegfried Metz Cc: rafael.j.wysocki@intel.com Cc: len.brown@intel.com Cc: diego.viola@gmail.com Cc: rui.zhang@intel.com Cc: bjorn.andersson@linaro.org Link: https://lkml.kernel.org/r/20180905084158.GR24124@hirez.programming.kicks-ass.net --- kernel/time/clocksource.c | 40 +++++++++++++++++++++++++++++---------- 1 file changed, 30 insertions(+), 10 deletions(-) diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index f74fb00d8064..0e6e97a01942 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -133,19 +133,40 @@ static void inline clocksource_watchdog_unlock(unsigned long *flags) spin_unlock_irqrestore(&watchdog_lock, *flags); } +static int clocksource_watchdog_kthread(void *data); +static void __clocksource_change_rating(struct clocksource *cs, int rating); + /* * Interval: 0.5sec Threshold: 0.0625s */ #define WATCHDOG_INTERVAL (HZ >> 1) #define WATCHDOG_THRESHOLD (NSEC_PER_SEC >> 4) +static void clocksource_watchdog_work(struct work_struct *work) +{ + /* + * We cannot directly run clocksource_watchdog_kthread() here, because + * clocksource_select() calls timekeeping_notify() which uses + * stop_machine(). One cannot use stop_machine() from a workqueue() due + * lock inversions wrt CPU hotplug. + * + * Also, we only ever run this work once or twice during the lifetime + * of the kernel, so there is no point in creating a more permanent + * kthread for this. + * + * If kthread_run fails the next watchdog scan over the + * watchdog_list will find the unstable clock again. + */ + kthread_run(clocksource_watchdog_kthread, NULL, "kwatchdog"); +} + static void __clocksource_unstable(struct clocksource *cs) { cs->flags &= ~(CLOCK_SOURCE_VALID_FOR_HRES | CLOCK_SOURCE_WATCHDOG); cs->flags |= CLOCK_SOURCE_UNSTABLE; /* - * If the clocksource is registered clocksource_watchdog_work() will + * If the clocksource is registered clocksource_watchdog_kthread() will * re-rate and re-select. */ if (list_empty(&cs->list)) { @@ -156,7 +177,7 @@ static void __clocksource_unstable(struct clocksource *cs) if (cs->mark_unstable) cs->mark_unstable(cs); - /* kick clocksource_watchdog_work() */ + /* kick clocksource_watchdog_kthread() */ if (finished_booting) schedule_work(&watchdog_work); } @@ -166,7 +187,7 @@ static void __clocksource_unstable(struct clocksource *cs) * @cs: clocksource to be marked unstable * * This function is called by the x86 TSC code to mark clocksources as unstable; - * it defers demotion and re-selection to a work. + * it defers demotion and re-selection to a kthread. */ void clocksource_mark_unstable(struct clocksource *cs) { @@ -391,9 +412,7 @@ static void clocksource_dequeue_watchdog(struct clocksource *cs) } } -static void __clocksource_change_rating(struct clocksource *cs, int rating); - -static int __clocksource_watchdog_work(void) +static int __clocksource_watchdog_kthread(void) { struct clocksource *cs, *tmp; unsigned long flags; @@ -418,12 +437,13 @@ static int __clocksource_watchdog_work(void) return select; } -static void clocksource_watchdog_work(struct work_struct *work) +static int clocksource_watchdog_kthread(void *data) { mutex_lock(&clocksource_mutex); - if (__clocksource_watchdog_work()) + if (__clocksource_watchdog_kthread()) clocksource_select(); mutex_unlock(&clocksource_mutex); + return 0; } static bool clocksource_is_watchdog(struct clocksource *cs) @@ -442,7 +462,7 @@ static void clocksource_enqueue_watchdog(struct clocksource *cs) static void clocksource_select_watchdog(bool fallback) { } static inline void clocksource_dequeue_watchdog(struct clocksource *cs) { } static inline void clocksource_resume_watchdog(void) { } -static inline int __clocksource_watchdog_work(void) { return 0; } +static inline int __clocksource_watchdog_kthread(void) { return 0; } static bool clocksource_is_watchdog(struct clocksource *cs) { return false; } void clocksource_mark_unstable(struct clocksource *cs) { } @@ -810,7 +830,7 @@ static int __init clocksource_done_booting(void) /* * Run the watchdog first to eliminate unstable clock sources */ - __clocksource_watchdog_work(); + __clocksource_watchdog_kthread(); clocksource_select(); mutex_unlock(&clocksource_mutex); return 0; From 8f5c5fcf353302374b36232d6885c1a3b579e5ca Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Tue, 4 Sep 2018 14:54:55 -0700 Subject: [PATCH 0747/1762] tipc: call start and done ops directly in __tipc_nl_compat_dumpit() __tipc_nl_compat_dumpit() uses a netlink_callback on stack, so the only way to align it with other ->dumpit() call path is calling tipc_dump_start() and tipc_dump_done() directly inside it. Otherwise ->dumpit() would always get NULL from cb->args[]. But tipc_dump_start() uses sock_net(cb->skb->sk) to retrieve net pointer, the cb->skb here doesn't set skb->sk, the net pointer is saved in msg->net instead, so introduce a helper function __tipc_dump_start() to pass in msg->net. Ying pointed out cb->args[0...3] are already used by other callbacks on this call path, so we can't use cb->args[0] any more, use cb->args[4] instead. Fixes: 9a07efa9aea2 ("tipc: switch to rhashtable iterator") Reported-and-tested-by: syzbot+e93a2c41f91b8e2c7d9b@syzkaller.appspotmail.com Cc: Jon Maloy Cc: Ying Xue Signed-off-by: Cong Wang Acked-by: Ying Xue Signed-off-by: David S. Miller --- net/tipc/netlink_compat.c | 2 ++ net/tipc/socket.c | 17 +++++++++++------ net/tipc/socket.h | 1 + 3 files changed, 14 insertions(+), 6 deletions(-) diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c index a2f76743c73a..82f665728382 100644 --- a/net/tipc/netlink_compat.c +++ b/net/tipc/netlink_compat.c @@ -185,6 +185,7 @@ static int __tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, return -ENOMEM; buf->sk = msg->dst_sk; + __tipc_dump_start(&cb, msg->net); do { int rem; @@ -216,6 +217,7 @@ static int __tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, err = 0; err_out: + tipc_dump_done(&cb); kfree_skb(buf); if (err == -EMSGSIZE) { diff --git a/net/tipc/socket.c b/net/tipc/socket.c index a0ff8bffc96b..3f03ddd0e35b 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -3230,7 +3230,7 @@ int tipc_nl_sk_walk(struct sk_buff *skb, struct netlink_callback *cb, struct netlink_callback *cb, struct tipc_sock *tsk)) { - struct rhashtable_iter *iter = (void *)cb->args[0]; + struct rhashtable_iter *iter = (void *)cb->args[4]; struct tipc_sock *tsk; int err; @@ -3266,8 +3266,14 @@ EXPORT_SYMBOL(tipc_nl_sk_walk); int tipc_dump_start(struct netlink_callback *cb) { - struct rhashtable_iter *iter = (void *)cb->args[0]; - struct net *net = sock_net(cb->skb->sk); + return __tipc_dump_start(cb, sock_net(cb->skb->sk)); +} +EXPORT_SYMBOL(tipc_dump_start); + +int __tipc_dump_start(struct netlink_callback *cb, struct net *net) +{ + /* tipc_nl_name_table_dump() uses cb->args[0...3]. */ + struct rhashtable_iter *iter = (void *)cb->args[4]; struct tipc_net *tn = tipc_net(net); if (!iter) { @@ -3275,17 +3281,16 @@ int tipc_dump_start(struct netlink_callback *cb) if (!iter) return -ENOMEM; - cb->args[0] = (long)iter; + cb->args[4] = (long)iter; } rhashtable_walk_enter(&tn->sk_rht, iter); return 0; } -EXPORT_SYMBOL(tipc_dump_start); int tipc_dump_done(struct netlink_callback *cb) { - struct rhashtable_iter *hti = (void *)cb->args[0]; + struct rhashtable_iter *hti = (void *)cb->args[4]; rhashtable_walk_exit(hti); kfree(hti); diff --git a/net/tipc/socket.h b/net/tipc/socket.h index d43032e26532..5e575f205afe 100644 --- a/net/tipc/socket.h +++ b/net/tipc/socket.h @@ -69,5 +69,6 @@ int tipc_nl_sk_walk(struct sk_buff *skb, struct netlink_callback *cb, struct netlink_callback *cb, struct tipc_sock *tsk)); int tipc_dump_start(struct netlink_callback *cb); +int __tipc_dump_start(struct netlink_callback *cb, struct net *net); int tipc_dump_done(struct netlink_callback *cb); #endif From 5af96b9c59c72fb2af2d19c5cc2f3cdcee391dff Mon Sep 17 00:00:00 2001 From: Marek Lindner Date: Fri, 7 Sep 2018 05:45:54 +0800 Subject: [PATCH 0748/1762] batman-adv: fix backbone_gw refcount on queue_work() failure The backbone_gw refcounter is to be decreased by the queued work and currently is never decreased if the queue_work() call fails. Fix by checking the queue_work() return value and decrease refcount if necessary. Signed-off-by: Marek Lindner Signed-off-by: Sven Eckelmann Signed-off-by: Simon Wunderlich --- net/batman-adv/bridge_loop_avoidance.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c index ff9659af6b91..5f1aeeded0e3 100644 --- a/net/batman-adv/bridge_loop_avoidance.c +++ b/net/batman-adv/bridge_loop_avoidance.c @@ -1772,6 +1772,7 @@ batadv_bla_loopdetect_check(struct batadv_priv *bat_priv, struct sk_buff *skb, { struct batadv_bla_backbone_gw *backbone_gw; struct ethhdr *ethhdr; + bool ret; ethhdr = eth_hdr(skb); @@ -1795,8 +1796,13 @@ batadv_bla_loopdetect_check(struct batadv_priv *bat_priv, struct sk_buff *skb, if (unlikely(!backbone_gw)) return true; - queue_work(batadv_event_workqueue, &backbone_gw->report_work); - /* backbone_gw is unreferenced in the report work function function */ + ret = queue_work(batadv_event_workqueue, &backbone_gw->report_work); + + /* backbone_gw is unreferenced in the report work function function + * if queue_work() call was successful + */ + if (!ret) + batadv_backbone_gw_put(backbone_gw); return true; } From 4c4af6900844ab04c9434c972021d7b48610e06a Mon Sep 17 00:00:00 2001 From: Marek Lindner Date: Fri, 7 Sep 2018 05:45:55 +0800 Subject: [PATCH 0749/1762] batman-adv: fix hardif_neigh refcount on queue_work() failure The hardif_neigh refcounter is to be decreased by the queued work and currently is never decreased if the queue_work() call fails. Fix by checking the queue_work() return value and decrease refcount if necessary. Signed-off-by: Marek Lindner Signed-off-by: Sven Eckelmann Signed-off-by: Simon Wunderlich --- net/batman-adv/bat_v_elp.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c index e103c759b7ab..9f481cfdf77d 100644 --- a/net/batman-adv/bat_v_elp.c +++ b/net/batman-adv/bat_v_elp.c @@ -268,6 +268,7 @@ static void batadv_v_elp_periodic_work(struct work_struct *work) struct batadv_priv *bat_priv; struct sk_buff *skb; u32 elp_interval; + bool ret; bat_v = container_of(work, struct batadv_hard_iface_bat_v, elp_wq.work); hard_iface = container_of(bat_v, struct batadv_hard_iface, bat_v); @@ -329,8 +330,11 @@ static void batadv_v_elp_periodic_work(struct work_struct *work) * may sleep and that is not allowed in an rcu protected * context. Therefore schedule a task for that. */ - queue_work(batadv_event_workqueue, - &hardif_neigh->bat_v.metric_work); + ret = queue_work(batadv_event_workqueue, + &hardif_neigh->bat_v.metric_work); + + if (!ret) + batadv_hardif_neigh_put(hardif_neigh); } rcu_read_unlock(); From fc269c0396448cabe1afd648c0b335669aa347b7 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Thu, 6 Sep 2018 17:41:55 +0100 Subject: [PATCH 0750/1762] ASoC: dapm: Avoid uninitialised variable warning Commit 4a75aae17b2a ("ASoC: dapm: Add support for multi-CODEC CODEC to CODEC links") adds loops that iterate over multiple CODECs in snd_soc_dai_link_event. This also introduced a compiler warning for a potentially uninitialised variable in the case no CODECs are present. This should never be the case as the DAI link must by definition contain at least 1 CODEC however probably best to avoid the compiler warning by initialising ret to zero. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 9f4edcd19e02..e496bc642c99 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -3623,7 +3623,7 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, struct snd_pcm_hw_params *params = NULL; struct snd_pcm_runtime *runtime = NULL; unsigned int fmt; - int ret; + int ret = 0; config = rtd->dai_link->params + rtd->params_select; From da4dfaf8428d9f71e2ac4f736bacb81adab36504 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Fri, 7 Sep 2018 08:02:05 +0200 Subject: [PATCH 0751/1762] i2c: xiic: Record xilinx i2c with Zynq fragment Include xilinx soft i2c controller to Zynq fragment to make clear who is responsible for it. Signed-off-by: Michal Simek Signed-off-by: Wolfram Sang --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index 9ad052aeac39..d870cb57c887 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2311,6 +2311,7 @@ F: drivers/clocksource/cadence_ttc_timer.c F: drivers/i2c/busses/i2c-cadence.c F: drivers/mmc/host/sdhci-of-arasan.c F: drivers/edac/synopsys_edac.c +F: drivers/i2c/busses/i2c-xiic.c ARM64 PORT (AARCH64 ARCHITECTURE) M: Catalin Marinas From 3b857472f34faa7d11001afa5e158833812c98d7 Mon Sep 17 00:00:00 2001 From: Yong Zhi Date: Tue, 7 Aug 2018 12:19:16 -0500 Subject: [PATCH 0752/1762] ASoC: Intel: hdac_hdmi: Limit sampling rates at dai creation Playback of 44.1Khz contents with HDMI plugged returns "Invalid pipe config" because HDMI paths in the FW topology are configured to operate at 48Khz. This patch filters out sampling rates not supported at hdac_hdmi_create_dais() to let user space SRC to do the converting. Signed-off-by: Yong Zhi Reviewed-by: Pierre-Louis Bossart Reviewed-by: Takashi Iwai Signed-off-by: Mark Brown --- sound/soc/codecs/hdac_hdmi.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index dc6a0dfea050..41d90dc6ebf7 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -1410,6 +1410,12 @@ static int hdac_hdmi_create_dais(struct hdac_device *hdev, if (ret) return ret; + /* Filter out 44.1, 88.2 and 176.4Khz */ + rates &= ~(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_176400); + if (!rates) + return -EINVAL; + sprintf(dai_name, "intel-hdmi-hifi%d", i+1); hdmi_dais[i].name = devm_kstrdup(&hdev->dev, dai_name, GFP_KERNEL); From 694556d54f354d3fe43bb2e61fd6103cca2638a4 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Thu, 23 Aug 2018 09:58:27 +0100 Subject: [PATCH 0753/1762] KVM: arm/arm64: Clean dcache to PoC when changing PTE due to CoW When triggering a CoW, we unmap the RO page via an MMU notifier (invalidate_range_start), and then populate the new PTE using another one (change_pte). In the meantime, we'll have copied the old page into the new one. The problem is that the data for the new page is sitting in the cache, and should the guest have an uncached mapping to that page (or its MMU off), following accesses will bypass the cache. In a way, this is similar to what happens on a translation fault: We need to clean the page to the PoC before mapping it. So let's just do that. This fixes a KVM unit test regression observed on a HiSilicon platform, and subsequently reproduced on Seattle. Fixes: a9c0e12ebee5 ("KVM: arm/arm64: Only clean the dcache on translation fault") Cc: stable@vger.kernel.org # v4.16+ Reported-by: Mike Galbraith Signed-off-by: Marc Zyngier Signed-off-by: Christoffer Dall --- virt/kvm/arm/mmu.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c index 91aaf73b00df..111a660be3be 100644 --- a/virt/kvm/arm/mmu.c +++ b/virt/kvm/arm/mmu.c @@ -1860,13 +1860,20 @@ static int kvm_set_spte_handler(struct kvm *kvm, gpa_t gpa, u64 size, void *data void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte) { unsigned long end = hva + PAGE_SIZE; + kvm_pfn_t pfn = pte_pfn(pte); pte_t stage2_pte; if (!kvm->arch.pgd) return; trace_kvm_set_spte_hva(hva); - stage2_pte = pfn_pte(pte_pfn(pte), PAGE_S2); + + /* + * We've moved a page around, probably through CoW, so let's treat it + * just like a translation fault and clean the cache to the PoC. + */ + clean_dcache_guest_page(pfn, PAGE_SIZE); + stage2_pte = pfn_pte(pfn, PAGE_S2); handle_hva_to_gpa(kvm, hva, end, &kvm_set_spte_handler, &stage2_pte); } From 7d14919c0d475a795c0127631ac8ecb2b0f31831 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Thu, 23 Aug 2018 11:51:43 +0100 Subject: [PATCH 0754/1762] arm64: KVM: Only force FPEXC32_EL2.EN if trapping FPSIMD If trapping FPSIMD in the context of an AArch32 guest, it is critical to set FPEXC32_EL2.EN to 1 so that the trapping is taken to EL2 and not EL1. Conversely, it is just as critical *not* to set FPEXC32_EL2.EN to 1 if we're not going to trap FPSIMD, as we then corrupt the existing VFP state. Moving the call to __activate_traps_fpsimd32 to the point where we know for sure that we are going to trap ensures that we don't set that bit spuriously. Fixes: e6b673b741ea ("KVM: arm64: Optimise FPSIMD handling to reduce guest/host thrashing") Cc: stable@vger.kernel.org # v4.18 Cc: Dave Martin Reported-by: Alexander Graf Tested-by: Alexander Graf Signed-off-by: Marc Zyngier Signed-off-by: Christoffer Dall --- arch/arm64/kvm/hyp/switch.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c index d496ef579859..ca46153d7915 100644 --- a/arch/arm64/kvm/hyp/switch.c +++ b/arch/arm64/kvm/hyp/switch.c @@ -98,8 +98,10 @@ static void activate_traps_vhe(struct kvm_vcpu *vcpu) val = read_sysreg(cpacr_el1); val |= CPACR_EL1_TTA; val &= ~CPACR_EL1_ZEN; - if (!update_fp_enabled(vcpu)) + if (!update_fp_enabled(vcpu)) { val &= ~CPACR_EL1_FPEN; + __activate_traps_fpsimd32(vcpu); + } write_sysreg(val, cpacr_el1); @@ -114,8 +116,10 @@ static void __hyp_text __activate_traps_nvhe(struct kvm_vcpu *vcpu) val = CPTR_EL2_DEFAULT; val |= CPTR_EL2_TTA | CPTR_EL2_TZ; - if (!update_fp_enabled(vcpu)) + if (!update_fp_enabled(vcpu)) { val |= CPTR_EL2_TFP; + __activate_traps_fpsimd32(vcpu); + } write_sysreg(val, cptr_el2); } @@ -129,7 +133,6 @@ static void __hyp_text __activate_traps(struct kvm_vcpu *vcpu) if (cpus_have_const_cap(ARM64_HAS_RAS_EXTN) && (hcr & HCR_VSE)) write_sysreg_s(vcpu->arch.vsesr_el2, SYS_VSESR_EL2); - __activate_traps_fpsimd32(vcpu); if (has_vhe()) activate_traps_vhe(vcpu); else From a35381e10dc46dd75e65e4b3832d9a0005d48d44 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Thu, 23 Aug 2018 10:18:14 +0100 Subject: [PATCH 0755/1762] KVM: Remove obsolete kvm_unmap_hva notifier backend kvm_unmap_hva is long gone, and we only have kvm_unmap_hva_range to deal with. Drop the now obsolete code. Fixes: fb1522e099f0 ("KVM: update to new mmu_notifier semantic v2") Cc: James Hogan Reviewed-by: Paolo Bonzini Signed-off-by: Marc Zyngier Signed-off-by: Christoffer Dall --- arch/arm/include/asm/kvm_host.h | 1 - arch/arm64/include/asm/kvm_host.h | 1 - arch/mips/include/asm/kvm_host.h | 1 - arch/mips/kvm/mmu.c | 10 ---------- arch/x86/include/asm/kvm_host.h | 1 - arch/x86/kvm/mmu.c | 5 ----- virt/kvm/arm/mmu.c | 12 ------------ virt/kvm/arm/trace.h | 15 --------------- 8 files changed, 46 deletions(-) diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h index 79906cecb091..3ad482d2f1eb 100644 --- a/arch/arm/include/asm/kvm_host.h +++ b/arch/arm/include/asm/kvm_host.h @@ -223,7 +223,6 @@ int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu, struct kvm_vcpu_events *events); #define KVM_ARCH_WANT_MMU_NOTIFIER -int kvm_unmap_hva(struct kvm *kvm, unsigned long hva); int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end); void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte); diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index f26055f2306e..8e6d46df38aa 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -357,7 +357,6 @@ int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu, struct kvm_vcpu_events *events); #define KVM_ARCH_WANT_MMU_NOTIFIER -int kvm_unmap_hva(struct kvm *kvm, unsigned long hva); int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end); void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte); diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h index a9af1d2dcd69..2c1c53d12179 100644 --- a/arch/mips/include/asm/kvm_host.h +++ b/arch/mips/include/asm/kvm_host.h @@ -931,7 +931,6 @@ enum kvm_mips_fault_result kvm_trap_emul_gva_fault(struct kvm_vcpu *vcpu, bool write); #define KVM_ARCH_WANT_MMU_NOTIFIER -int kvm_unmap_hva(struct kvm *kvm, unsigned long hva); int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end); void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte); diff --git a/arch/mips/kvm/mmu.c b/arch/mips/kvm/mmu.c index ee64db032793..d8dcdb350405 100644 --- a/arch/mips/kvm/mmu.c +++ b/arch/mips/kvm/mmu.c @@ -512,16 +512,6 @@ static int kvm_unmap_hva_handler(struct kvm *kvm, gfn_t gfn, gfn_t gfn_end, return 1; } -int kvm_unmap_hva(struct kvm *kvm, unsigned long hva) -{ - unsigned long end = hva + PAGE_SIZE; - - handle_hva_to_gpa(kvm, hva, end, &kvm_unmap_hva_handler, NULL); - - kvm_mips_callbacks->flush_shadow_all(kvm); - return 0; -} - int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end) { handle_hva_to_gpa(kvm, start, end, &kvm_unmap_hva_handler, NULL); diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 00ddb0c9e612..e6a33420b871 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1450,7 +1450,6 @@ asmlinkage void kvm_spurious_fault(void); ____kvm_handle_fault_on_reboot(insn, "") #define KVM_ARCH_WANT_MMU_NOTIFIER -int kvm_unmap_hva(struct kvm *kvm, unsigned long hva); int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end); int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end); int kvm_test_age_hva(struct kvm *kvm, unsigned long hva); diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index a282321329b5..d440154e8938 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -1853,11 +1853,6 @@ static int kvm_handle_hva(struct kvm *kvm, unsigned long hva, return kvm_handle_hva_range(kvm, hva, hva + 1, data, handler); } -int kvm_unmap_hva(struct kvm *kvm, unsigned long hva) -{ - return kvm_handle_hva(kvm, hva, 0, kvm_unmap_rmapp); -} - int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end) { return kvm_handle_hva_range(kvm, start, end, 0, kvm_unmap_rmapp); diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c index 111a660be3be..ed162a6c57c5 100644 --- a/virt/kvm/arm/mmu.c +++ b/virt/kvm/arm/mmu.c @@ -1817,18 +1817,6 @@ static int kvm_unmap_hva_handler(struct kvm *kvm, gpa_t gpa, u64 size, void *dat return 0; } -int kvm_unmap_hva(struct kvm *kvm, unsigned long hva) -{ - unsigned long end = hva + PAGE_SIZE; - - if (!kvm->arch.pgd) - return 0; - - trace_kvm_unmap_hva(hva); - handle_hva_to_gpa(kvm, hva, end, &kvm_unmap_hva_handler, NULL); - return 0; -} - int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end) { diff --git a/virt/kvm/arm/trace.h b/virt/kvm/arm/trace.h index e53b596f483b..57b3edebbb40 100644 --- a/virt/kvm/arm/trace.h +++ b/virt/kvm/arm/trace.h @@ -134,21 +134,6 @@ TRACE_EVENT(kvm_mmio_emulate, __entry->vcpu_pc, __entry->instr, __entry->cpsr) ); -TRACE_EVENT(kvm_unmap_hva, - TP_PROTO(unsigned long hva), - TP_ARGS(hva), - - TP_STRUCT__entry( - __field( unsigned long, hva ) - ), - - TP_fast_assign( - __entry->hva = hva; - ), - - TP_printk("mmu notifier unmap hva: %#08lx", __entry->hva) -); - TRACE_EVENT(kvm_unmap_hva_range, TP_PROTO(unsigned long start, unsigned long end), TP_ARGS(start, end), From df3190e22016abf74ef67c9691e9fa1012a66bd5 Mon Sep 17 00:00:00 2001 From: Steven Price Date: Mon, 13 Aug 2018 17:04:53 +0100 Subject: [PATCH 0756/1762] arm64: KVM: Remove pgd_lock The lock has never been used and the page tables are protected by mmu_lock in struct kvm. Reviewed-by: Suzuki K Poulose Signed-off-by: Steven Price Signed-off-by: Marc Zyngier Signed-off-by: Christoffer Dall --- arch/arm64/include/asm/kvm_host.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 8e6d46df38aa..3d6d7336f871 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -61,8 +61,7 @@ struct kvm_arch { u64 vmid_gen; u32 vmid; - /* 1-level 2nd stage table and lock */ - spinlock_t pgd_lock; + /* 1-level 2nd stage table, protected by kvm->mmu_lock */ pgd_t *pgd; /* VTTBR value associated with above pgd and vmid */ From 3004136b90bedc9e254ff659adb7a60299e9495e Mon Sep 17 00:00:00 2001 From: Grant Grundler Date: Thu, 6 Sep 2018 17:27:28 -0700 Subject: [PATCH 0757/1762] ASoC: max98373: usleep_range() needs include/delay.h Commit ca917f9fe1a0fab added use of usleep_range() but not the corresponding "include ". The result is with Chrome OS won't build because warnings are forced to be errors: mnt/host/source/src/third_party/kernel/v4.4/sound/soc/codecs/max98373.c:734:2: error: implicit declaration of function 'usleep_range' [-Werror,-Wimplicit-function-declaration] usleep_range(10000, 11000); ^ Including delay.h "fixes" this. Signed-off-by: Grant Grundler Reviewed-by: Benson Leung Signed-off-by: Mark Brown --- sound/soc/codecs/max98373.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c index 1093f766d0d2..d6868c9a9ce6 100644 --- a/sound/soc/codecs/max98373.c +++ b/sound/soc/codecs/max98373.c @@ -2,6 +2,7 @@ // Copyright (c) 2017, Maxim Integrated #include +#include #include #include #include From c793279c77035053e67937f5743c6ebfc303e7c5 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Thu, 6 Sep 2018 09:47:51 -0700 Subject: [PATCH 0758/1762] hwmon: (nct6775) Fix access to fan pulse registers Not all fans have a fan pulse register. This can result in reading beyond the end of REG_FAN_PULSES and FAN_PULSE_SHIFT arrays, and was reported by smatch as possible error. 1672 for (i = 0; i < ARRAY_SIZE(data->rpm); i++) { ^^^^^^^^^^^^^^^^^^^^^^^^ This is a 7 element array. ... 1685 data->fan_pulses[i] = 1686 (nct6775_read_value(data, data->REG_FAN_PULSES[i]) 1687 >> data->FAN_PULSE_SHIFT[i]) & 0x03; ^^^^^^^^^^^^^^^^^^^^^^^^ FAN_PULSE_SHIFT is either 5 or 6 elements. To fix the problem, we have to ensure that all REG_FAN_PULSES and FAN_PULSE_SHIFT have the appropriate length, and that REG_FAN_PULSES is only read if the register actually exists. Fixes: 6c009501ff200 ("hwmon: (nct6775) Add support for NCT6102D/6106D") Reported-by: Dan Carpenter Signed-off-by: Guenter Roeck --- drivers/hwmon/nct6775.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index 139781ae830b..87c316c6c341 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -299,8 +299,9 @@ static const u16 NCT6775_REG_PWM_READ[] = { static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 }; static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d }; -static const u16 NCT6775_REG_FAN_PULSES[] = { 0x641, 0x642, 0x643, 0x644, 0 }; -static const u16 NCT6775_FAN_PULSE_SHIFT[] = { 0, 0, 0, 0, 0, 0 }; +static const u16 NCT6775_REG_FAN_PULSES[NUM_FAN] = { + 0x641, 0x642, 0x643, 0x644 }; +static const u16 NCT6775_FAN_PULSE_SHIFT[NUM_FAN] = { }; static const u16 NCT6775_REG_TEMP[] = { 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d }; @@ -425,8 +426,8 @@ static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0, 0, 0, 0 }; static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642, 0x64a, 0x64c }; -static const u16 NCT6776_REG_FAN_PULSES[] = { - 0x644, 0x645, 0x646, 0x647, 0x648, 0x649, 0 }; +static const u16 NCT6776_REG_FAN_PULSES[NUM_FAN] = { + 0x644, 0x645, 0x646, 0x647, 0x648, 0x649 }; static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[] = { 0x13e, 0x23e, 0x33e, 0x83e, 0x93e, 0xa3e }; @@ -502,8 +503,8 @@ static const s8 NCT6779_BEEP_BITS[] = { static const u16 NCT6779_REG_FAN[] = { 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8, 0x4ba, 0x660 }; -static const u16 NCT6779_REG_FAN_PULSES[] = { - 0x644, 0x645, 0x646, 0x647, 0x648, 0x649, 0 }; +static const u16 NCT6779_REG_FAN_PULSES[NUM_FAN] = { + 0x644, 0x645, 0x646, 0x647, 0x648, 0x649 }; static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = { 0x136, 0x236, 0x336, 0x836, 0x936, 0xa36, 0xb36 }; @@ -779,8 +780,8 @@ static const u16 NCT6106_REG_TEMP_CONFIG[] = { static const u16 NCT6106_REG_FAN[] = { 0x20, 0x22, 0x24 }; static const u16 NCT6106_REG_FAN_MIN[] = { 0xe0, 0xe2, 0xe4 }; -static const u16 NCT6106_REG_FAN_PULSES[] = { 0xf6, 0xf6, 0xf6, 0, 0 }; -static const u16 NCT6106_FAN_PULSE_SHIFT[] = { 0, 2, 4, 0, 0 }; +static const u16 NCT6106_REG_FAN_PULSES[] = { 0xf6, 0xf6, 0xf6 }; +static const u16 NCT6106_FAN_PULSE_SHIFT[] = { 0, 2, 4 }; static const u8 NCT6106_REG_PWM_MODE[] = { 0xf3, 0xf3, 0xf3 }; static const u8 NCT6106_PWM_MODE_MASK[] = { 0x01, 0x02, 0x04 }; @@ -1682,9 +1683,13 @@ static struct nct6775_data *nct6775_update_device(struct device *dev) if (data->has_fan_min & BIT(i)) data->fan_min[i] = nct6775_read_value(data, data->REG_FAN_MIN[i]); - data->fan_pulses[i] = - (nct6775_read_value(data, data->REG_FAN_PULSES[i]) - >> data->FAN_PULSE_SHIFT[i]) & 0x03; + + if (data->REG_FAN_PULSES[i]) { + data->fan_pulses[i] = + (nct6775_read_value(data, + data->REG_FAN_PULSES[i]) + >> data->FAN_PULSE_SHIFT[i]) & 0x03; + } nct6775_select_fan_div(dev, data, i, reg); } From b5861e5cf2fcf83031ea3e26b0a69d887adf7d21 Mon Sep 17 00:00:00 2001 From: Liran Alon Date: Mon, 3 Sep 2018 15:20:22 +0300 Subject: [PATCH 0759/1762] KVM: nVMX: Fix loss of pending IRQ/NMI before entering L2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Consider the case L1 had a IRQ/NMI event until it executed VMLAUNCH/VMRESUME which wasn't delivered because it was disallowed (e.g. interrupts disabled). When L1 executes VMLAUNCH/VMRESUME, L0 needs to evaluate if this pending event should cause an exit from L2 to L1 or delivered directly to L2 (e.g. In case L1 don't intercept EXTERNAL_INTERRUPT). Usually this would be handled by L0 requesting a IRQ/NMI window by setting VMCS accordingly. However, this setting was done on VMCS01 and now VMCS02 is active instead. Thus, when L1 executes VMLAUNCH/VMRESUME we force L0 to perform pending event evaluation by requesting a KVM_REQ_EVENT. Note that above scenario exists when L1 KVM is about to enter L2 but requests an "immediate-exit". As in this case, L1 will disable-interrupts and then send a self-IPI before entering L2. Reviewed-by: Nikita Leshchenko Co-developed-by: Sean Christopherson Signed-off-by: Sean Christopherson Signed-off-by: Liran Alon Signed-off-by: Radim Krčmář --- arch/x86/kvm/vmx.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index f910d33858d9..533a327372c8 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -12537,8 +12537,11 @@ static int enter_vmx_non_root_mode(struct kvm_vcpu *vcpu, u32 *exit_qual) struct vmcs12 *vmcs12 = get_vmcs12(vcpu); bool from_vmentry = !!exit_qual; u32 dummy_exit_qual; + u32 vmcs01_cpu_exec_ctrl; int r = 0; + vmcs01_cpu_exec_ctrl = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL); + enter_guest_mode(vcpu); if (!(vmcs12->vm_entry_controls & VM_ENTRY_LOAD_DEBUG_CONTROLS)) @@ -12574,6 +12577,25 @@ static int enter_vmx_non_root_mode(struct kvm_vcpu *vcpu, u32 *exit_qual) kvm_make_request(KVM_REQ_GET_VMCS12_PAGES, vcpu); } + /* + * If L1 had a pending IRQ/NMI until it executed + * VMLAUNCH/VMRESUME which wasn't delivered because it was + * disallowed (e.g. interrupts disabled), L0 needs to + * evaluate if this pending event should cause an exit from L2 + * to L1 or delivered directly to L2 (e.g. In case L1 don't + * intercept EXTERNAL_INTERRUPT). + * + * Usually this would be handled by L0 requesting a + * IRQ/NMI window by setting VMCS accordingly. However, + * this setting was done on VMCS01 and now VMCS02 is active + * instead. Thus, we force L0 to perform pending event + * evaluation by requesting a KVM_REQ_EVENT. + */ + if (vmcs01_cpu_exec_ctrl & + (CPU_BASED_VIRTUAL_INTR_PENDING | CPU_BASED_VIRTUAL_NMI_PENDING)) { + kvm_make_request(KVM_REQ_EVENT, vcpu); + } + /* * Note no nested_vmx_succeed or nested_vmx_fail here. At this point * we are no longer running L1, and VMLAUNCH/VMRESUME has not yet From bdf7ffc89922a52a4f08a12f7421ea24bb7626a0 Mon Sep 17 00:00:00 2001 From: Wanpeng Li Date: Thu, 30 Aug 2018 10:03:30 +0800 Subject: [PATCH 0760/1762] KVM: LAPIC: Fix pv ipis out-of-bounds access MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Dan Carpenter reported that the untrusted data returns from kvm_register_read() results in the following static checker warning: arch/x86/kvm/lapic.c:576 kvm_pv_send_ipi() error: buffer underflow 'map->phys_map' 's32min-s32max' KVM guest can easily trigger this by executing the following assembly sequence in Ring0: mov $10, %rax mov $0xFFFFFFFF, %rbx mov $0xFFFFFFFF, %rdx mov $0, %rsi vmcall As this will cause KVM to execute the following code-path: vmx_handle_exit() -> handle_vmcall() -> kvm_emulate_hypercall() -> kvm_pv_send_ipi() which will reach out-of-bounds access. This patch fixes it by adding a check to kvm_pv_send_ipi() against map->max_apic_id, ignoring destinations that are not present and delivering the rest. We also check whether or not map->phys_map[min + i] is NULL since the max_apic_id is set to the max apic id, some phys_map maybe NULL when apic id is sparse, especially kvm unconditionally set max_apic_id to 255 to reserve enough space for any xAPIC ID. Reported-by: Dan Carpenter Reviewed-by: Liran Alon Cc: Paolo Bonzini Cc: Radim Krčmář Cc: Liran Alon Cc: Dan Carpenter Signed-off-by: Wanpeng Li [Add second "if (min > map->max_apic_id)" to complete the fix. -Radim] Signed-off-by: Radim Krčmář --- arch/x86/include/asm/kvm_host.h | 2 +- arch/x86/kvm/lapic.c | 27 ++++++++++++++++++++------- 2 files changed, 21 insertions(+), 8 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 3ad10f634d4c..8e90488c3d56 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1455,7 +1455,7 @@ void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event); void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu *vcpu); int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low, - unsigned long ipi_bitmap_high, int min, + unsigned long ipi_bitmap_high, u32 min, unsigned long icr, int op_64_bit); u64 kvm_get_arch_capabilities(void); diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 0cefba28c864..17c0472c5b34 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -548,7 +548,7 @@ int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq, } int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low, - unsigned long ipi_bitmap_high, int min, + unsigned long ipi_bitmap_high, u32 min, unsigned long icr, int op_64_bit) { int i; @@ -571,18 +571,31 @@ int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low, rcu_read_lock(); map = rcu_dereference(kvm->arch.apic_map); + if (min > map->max_apic_id) + goto out; /* Bits above cluster_size are masked in the caller. */ - for_each_set_bit(i, &ipi_bitmap_low, BITS_PER_LONG) { - vcpu = map->phys_map[min + i]->vcpu; - count += kvm_apic_set_irq(vcpu, &irq, NULL); + for_each_set_bit(i, &ipi_bitmap_low, + min((u32)BITS_PER_LONG, (map->max_apic_id - min + 1))) { + if (map->phys_map[min + i]) { + vcpu = map->phys_map[min + i]->vcpu; + count += kvm_apic_set_irq(vcpu, &irq, NULL); + } } min += cluster_size; - for_each_set_bit(i, &ipi_bitmap_high, BITS_PER_LONG) { - vcpu = map->phys_map[min + i]->vcpu; - count += kvm_apic_set_irq(vcpu, &irq, NULL); + + if (min > map->max_apic_id) + goto out; + + for_each_set_bit(i, &ipi_bitmap_high, + min((u32)BITS_PER_LONG, (map->max_apic_id - min + 1))) { + if (map->phys_map[min + i]) { + vcpu = map->phys_map[min + i]->vcpu; + count += kvm_apic_set_irq(vcpu, &irq, NULL); + } } +out: rcu_read_unlock(); return count; } From f74dd480cf4e31e12971c58a1d832044db945670 Mon Sep 17 00:00:00 2001 From: "Maciej S. Szmigiero" Date: Fri, 7 Sep 2018 20:15:22 +0200 Subject: [PATCH 0761/1762] r8169: set TxConfig register after TX / RX is enabled, just like RxConfig Commit 3559d81e76bf ("r8169: simplify rtl_hw_start_8169") changed order of two register writes: 1) Caused RxConfig to be written before TX / RX is enabled, 2) Caused TxConfig to be written before TX / RX is enabled. At least on XIDs 10000000 ("RTL8169sb/8110sb") and 18000000 ("RTL8169sc/8110sc") such writes are ignored by the chip, leaving values in these registers intact. Change 1) was reverted by commit 05212ba8132b42 ("r8169: set RxConfig after tx/rx is enabled for RTL8169sb/8110sb devices"), however change 2) wasn't. In practice, this caused TxConfig's "InterFrameGap time" and "Max DMA Burst Size per Tx DMA Burst" bits to be zero dramatically reducing TX performance (in my tests it dropped from around 500Mbps to around 50Mbps). This patch fixes the issue by moving TxConfig register write a bit later in the code so it happens after TX / RX is already enabled. Fixes: 05212ba8132b42 ("r8169: set RxConfig after tx/rx is enabled for RTL8169sb/8110sb devices") Signed-off-by: Maciej S. Szmigiero Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index b08d51bf7a20..a1f37d58e2fe 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -4634,13 +4634,13 @@ static void rtl_hw_start(struct rtl8169_private *tp) rtl_set_rx_max_size(tp); rtl_set_rx_tx_desc_registers(tp); - rtl_set_tx_config_registers(tp); RTL_W8(tp, Cfg9346, Cfg9346_Lock); /* Initially a 10 us delay. Turned it into a PCI commit. - FR */ RTL_R8(tp, IntrMask); RTL_W8(tp, ChipCmd, CmdTxEnb | CmdRxEnb); rtl_init_rxcfg(tp); + rtl_set_tx_config_registers(tp); rtl_set_rx_mode(tp->dev); /* no early-rx interrupts */ From 48c2bb0b9cf863e0ed78e269f188ce65b73e0fd1 Mon Sep 17 00:00:00 2001 From: Jay Kamat Date: Fri, 7 Sep 2018 14:34:04 -0700 Subject: [PATCH 0762/1762] Fix cg_read_strcmp() Fix a couple issues with cg_read_strcmp(), to improve correctness of cgroup tests - Fix cg_read_strcmp() always returning 0 for empty "needle" strings. Previously, this function read to a size = 1 buffer when comparing against empty strings, which would lead to cg_read_strcmp() comparing two empty strings. - Fix a memory leak in cg_read_strcmp() Fixes: 84092dbcf901 ("selftests: cgroup: add memory controller self-tests") Signed-off-by: Jay Kamat Acked-by: Roman Gushchin Signed-off-by: Shuah Khan (Samsung OSG) --- tools/testing/selftests/cgroup/cgroup_util.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/cgroup/cgroup_util.c b/tools/testing/selftests/cgroup/cgroup_util.c index 1c5d2b2a583b..f857def9a9e6 100644 --- a/tools/testing/selftests/cgroup/cgroup_util.c +++ b/tools/testing/selftests/cgroup/cgroup_util.c @@ -89,17 +89,28 @@ int cg_read(const char *cgroup, const char *control, char *buf, size_t len) int cg_read_strcmp(const char *cgroup, const char *control, const char *expected) { - size_t size = strlen(expected) + 1; + size_t size; char *buf; + int ret; + + /* Handle the case of comparing against empty string */ + if (!expected) + size = 32; + else + size = strlen(expected) + 1; buf = malloc(size); if (!buf) return -1; - if (cg_read(cgroup, control, buf, size)) + if (cg_read(cgroup, control, buf, size)) { + free(buf); return -1; + } - return strcmp(expected, buf); + ret = strcmp(expected, buf); + free(buf); + return ret; } int cg_read_strstr(const char *cgroup, const char *control, const char *needle) From a987785dcd6c8ae2915460582aebd6481c81eb67 Mon Sep 17 00:00:00 2001 From: Jay Kamat Date: Fri, 7 Sep 2018 14:34:05 -0700 Subject: [PATCH 0763/1762] Add tests for memory.oom.group Add tests for memory.oom.group for the following cases: - Killing all processes in a leaf cgroup, but leaving the parent untouched - Killing all processes in a parent and leaf cgroup - Keeping processes marked by OOM_SCORE_ADJ_MIN alive when considered for being killed by the group oom killer. Signed-off-by: Jay Kamat Acked-by: Roman Gushchin Signed-off-by: Shuah Khan (Samsung OSG) --- tools/testing/selftests/cgroup/cgroup_util.c | 21 ++ tools/testing/selftests/cgroup/cgroup_util.h | 1 + .../selftests/cgroup/test_memcontrol.c | 205 ++++++++++++++++++ 3 files changed, 227 insertions(+) diff --git a/tools/testing/selftests/cgroup/cgroup_util.c b/tools/testing/selftests/cgroup/cgroup_util.c index f857def9a9e6..14c9fe284806 100644 --- a/tools/testing/selftests/cgroup/cgroup_util.c +++ b/tools/testing/selftests/cgroup/cgroup_util.c @@ -348,3 +348,24 @@ int is_swap_enabled(void) return cnt > 1; } + +int set_oom_adj_score(int pid, int score) +{ + char path[PATH_MAX]; + int fd, len; + + sprintf(path, "/proc/%d/oom_score_adj", pid); + + fd = open(path, O_WRONLY | O_APPEND); + if (fd < 0) + return fd; + + len = dprintf(fd, "%d", score); + if (len < 0) { + close(fd); + return len; + } + + close(fd); + return 0; +} diff --git a/tools/testing/selftests/cgroup/cgroup_util.h b/tools/testing/selftests/cgroup/cgroup_util.h index 1ff6f9f1abdc..9ac8b7958f83 100644 --- a/tools/testing/selftests/cgroup/cgroup_util.h +++ b/tools/testing/selftests/cgroup/cgroup_util.h @@ -40,3 +40,4 @@ extern int get_temp_fd(void); extern int alloc_pagecache(int fd, size_t size); extern int alloc_anon(const char *cgroup, void *arg); extern int is_swap_enabled(void); +extern int set_oom_adj_score(int pid, int score); diff --git a/tools/testing/selftests/cgroup/test_memcontrol.c b/tools/testing/selftests/cgroup/test_memcontrol.c index cf0bddc9d271..28d321ba311b 100644 --- a/tools/testing/selftests/cgroup/test_memcontrol.c +++ b/tools/testing/selftests/cgroup/test_memcontrol.c @@ -2,6 +2,7 @@ #define _GNU_SOURCE #include +#include #include #include #include @@ -202,6 +203,36 @@ static int alloc_pagecache_50M_noexit(const char *cgroup, void *arg) return 0; } +static int alloc_anon_noexit(const char *cgroup, void *arg) +{ + int ppid = getppid(); + + if (alloc_anon(cgroup, arg)) + return -1; + + while (getppid() == ppid) + sleep(1); + + return 0; +} + +/* + * Wait until processes are killed asynchronously by the OOM killer + * If we exceed a timeout, fail. + */ +static int cg_test_proc_killed(const char *cgroup) +{ + int limit; + + for (limit = 10; limit > 0; limit--) { + if (cg_read_strcmp(cgroup, "cgroup.procs", "") == 0) + return 0; + + usleep(100000); + } + return -1; +} + /* * First, this test creates the following hierarchy: * A memory.min = 50M, memory.max = 200M @@ -964,6 +995,177 @@ cleanup: return ret; } +/* + * This test disables swapping and tries to allocate anonymous memory + * up to OOM with memory.group.oom set. Then it checks that all + * processes in the leaf (but not the parent) were killed. + */ +static int test_memcg_oom_group_leaf_events(const char *root) +{ + int ret = KSFT_FAIL; + char *parent, *child; + + parent = cg_name(root, "memcg_test_0"); + child = cg_name(root, "memcg_test_0/memcg_test_1"); + + if (!parent || !child) + goto cleanup; + + if (cg_create(parent)) + goto cleanup; + + if (cg_create(child)) + goto cleanup; + + if (cg_write(parent, "cgroup.subtree_control", "+memory")) + goto cleanup; + + if (cg_write(child, "memory.max", "50M")) + goto cleanup; + + if (cg_write(child, "memory.swap.max", "0")) + goto cleanup; + + if (cg_write(child, "memory.oom.group", "1")) + goto cleanup; + + cg_run_nowait(parent, alloc_anon_noexit, (void *) MB(60)); + cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1)); + cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1)); + if (!cg_run(child, alloc_anon, (void *)MB(100))) + goto cleanup; + + if (cg_test_proc_killed(child)) + goto cleanup; + + if (cg_read_key_long(child, "memory.events", "oom_kill ") <= 0) + goto cleanup; + + if (cg_read_key_long(parent, "memory.events", "oom_kill ") != 0) + goto cleanup; + + ret = KSFT_PASS; + +cleanup: + if (child) + cg_destroy(child); + if (parent) + cg_destroy(parent); + free(child); + free(parent); + + return ret; +} + +/* + * This test disables swapping and tries to allocate anonymous memory + * up to OOM with memory.group.oom set. Then it checks that all + * processes in the parent and leaf were killed. + */ +static int test_memcg_oom_group_parent_events(const char *root) +{ + int ret = KSFT_FAIL; + char *parent, *child; + + parent = cg_name(root, "memcg_test_0"); + child = cg_name(root, "memcg_test_0/memcg_test_1"); + + if (!parent || !child) + goto cleanup; + + if (cg_create(parent)) + goto cleanup; + + if (cg_create(child)) + goto cleanup; + + if (cg_write(parent, "memory.max", "80M")) + goto cleanup; + + if (cg_write(parent, "memory.swap.max", "0")) + goto cleanup; + + if (cg_write(parent, "memory.oom.group", "1")) + goto cleanup; + + cg_run_nowait(parent, alloc_anon_noexit, (void *) MB(60)); + cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1)); + cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1)); + + if (!cg_run(child, alloc_anon, (void *)MB(100))) + goto cleanup; + + if (cg_test_proc_killed(child)) + goto cleanup; + if (cg_test_proc_killed(parent)) + goto cleanup; + + ret = KSFT_PASS; + +cleanup: + if (child) + cg_destroy(child); + if (parent) + cg_destroy(parent); + free(child); + free(parent); + + return ret; +} + +/* + * This test disables swapping and tries to allocate anonymous memory + * up to OOM with memory.group.oom set. Then it checks that all + * processes were killed except those set with OOM_SCORE_ADJ_MIN + */ +static int test_memcg_oom_group_score_events(const char *root) +{ + int ret = KSFT_FAIL; + char *memcg; + int safe_pid; + + memcg = cg_name(root, "memcg_test_0"); + + if (!memcg) + goto cleanup; + + if (cg_create(memcg)) + goto cleanup; + + if (cg_write(memcg, "memory.max", "50M")) + goto cleanup; + + if (cg_write(memcg, "memory.swap.max", "0")) + goto cleanup; + + if (cg_write(memcg, "memory.oom.group", "1")) + goto cleanup; + + safe_pid = cg_run_nowait(memcg, alloc_anon_noexit, (void *) MB(1)); + if (set_oom_adj_score(safe_pid, OOM_SCORE_ADJ_MIN)) + goto cleanup; + + cg_run_nowait(memcg, alloc_anon_noexit, (void *) MB(1)); + if (!cg_run(memcg, alloc_anon, (void *)MB(100))) + goto cleanup; + + if (cg_read_key_long(memcg, "memory.events", "oom_kill ") != 3) + goto cleanup; + + if (kill(safe_pid, SIGKILL)) + goto cleanup; + + ret = KSFT_PASS; + +cleanup: + if (memcg) + cg_destroy(memcg); + free(memcg); + + return ret; +} + + #define T(x) { x, #x } struct memcg_test { int (*fn)(const char *root); @@ -978,6 +1180,9 @@ struct memcg_test { T(test_memcg_oom_events), T(test_memcg_swap_max), T(test_memcg_sock), + T(test_memcg_oom_group_leaf_events), + T(test_memcg_oom_group_parent_events), + T(test_memcg_oom_group_score_events), }; #undef T From ecfe951f0c1b169ea4b7dd6f3a404dfedd795bc2 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 7 Sep 2018 23:55:17 +0100 Subject: [PATCH 0764/1762] afs: Fix cell specification to permit an empty address list Fix the cell specification mechanism to allow cells to be pre-created without having to specify at least one address (the addresses will be upcalled for). This allows the cell information preload service to avoid the need to issue loads of DNS lookups during boot to get the addresses for each cell (500+ lookups for the 'standard' cell list[*]). The lookups can be done later as each cell is accessed through the filesystem. Also remove the print statement that prints a line every time a new cell is added. [*] There are 144 cells in the list. Each cell is first looked up for an SRV record, and if that fails, for an AFSDB record. These get a list of server names, each of which then has to be looked up to get the addresses for that server. E.g.: dig srv _afs3-vlserver._udp.grand.central.org Signed-off-by: David Howells Signed-off-by: Linus Torvalds --- fs/afs/proc.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/fs/afs/proc.c b/fs/afs/proc.c index 0c3285c8db95..476dcbb79713 100644 --- a/fs/afs/proc.c +++ b/fs/afs/proc.c @@ -98,13 +98,13 @@ static int afs_proc_cells_write(struct file *file, char *buf, size_t size) goto inval; args = strchr(name, ' '); - if (!args) - goto inval; - do { - *args++ = 0; - } while(*args == ' '); - if (!*args) - goto inval; + if (args) { + do { + *args++ = 0; + } while(*args == ' '); + if (!*args) + goto inval; + } /* determine command to perform */ _debug("cmd=%s name=%s args=%s", buf, name, args); @@ -120,7 +120,6 @@ static int afs_proc_cells_write(struct file *file, char *buf, size_t size) if (test_and_set_bit(AFS_CELL_FL_NO_GC, &cell->flags)) afs_put_cell(net, cell); - printk("kAFS: Added new cell '%s'\n", name); } else { goto inval; } From 8edfe2e992b75aee3da9316e9697c531194c2f53 Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Fri, 7 Sep 2018 14:21:30 +0200 Subject: [PATCH 0765/1762] xen/netfront: fix waiting for xenbus state change Commit 822fb18a82aba ("xen-netfront: wait xenbus state change when load module manually") added a new wait queue to wait on for a state change when the module is loaded manually. Unfortunately there is no wakeup anywhere to stop that waiting. Instead of introducing a new wait queue rename the existing module_unload_q to module_wq and use it for both purposes (loading and unloading). As any state change of the backend might be intended to stop waiting do the wake_up_all() in any case when netback_changed() is called. Fixes: 822fb18a82aba ("xen-netfront: wait xenbus state change when load module manually") Cc: #4.18 Signed-off-by: Juergen Gross Reviewed-by: Boris Ostrovsky Signed-off-by: David S. Miller --- drivers/net/xen-netfront.c | 24 ++++++++++-------------- 1 file changed, 10 insertions(+), 14 deletions(-) diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index 73f596a90c69..9407acbd19a9 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -87,8 +87,7 @@ struct netfront_cb { /* IRQ name is queue name with "-tx" or "-rx" appended */ #define IRQ_NAME_SIZE (QUEUE_NAME_SIZE + 3) -static DECLARE_WAIT_QUEUE_HEAD(module_load_q); -static DECLARE_WAIT_QUEUE_HEAD(module_unload_q); +static DECLARE_WAIT_QUEUE_HEAD(module_wq); struct netfront_stats { u64 packets; @@ -1332,11 +1331,11 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev) netif_carrier_off(netdev); xenbus_switch_state(dev, XenbusStateInitialising); - wait_event(module_load_q, - xenbus_read_driver_state(dev->otherend) != - XenbusStateClosed && - xenbus_read_driver_state(dev->otherend) != - XenbusStateUnknown); + wait_event(module_wq, + xenbus_read_driver_state(dev->otherend) != + XenbusStateClosed && + xenbus_read_driver_state(dev->otherend) != + XenbusStateUnknown); return netdev; exit: @@ -2010,15 +2009,14 @@ static void netback_changed(struct xenbus_device *dev, dev_dbg(&dev->dev, "%s\n", xenbus_strstate(backend_state)); + wake_up_all(&module_wq); + switch (backend_state) { case XenbusStateInitialising: case XenbusStateInitialised: case XenbusStateReconfiguring: case XenbusStateReconfigured: - break; - case XenbusStateUnknown: - wake_up_all(&module_unload_q); break; case XenbusStateInitWait: @@ -2034,12 +2032,10 @@ static void netback_changed(struct xenbus_device *dev, break; case XenbusStateClosed: - wake_up_all(&module_unload_q); if (dev->state == XenbusStateClosed) break; /* Missed the backend's CLOSING state -- fallthrough */ case XenbusStateClosing: - wake_up_all(&module_unload_q); xenbus_frontend_closed(dev); break; } @@ -2147,14 +2143,14 @@ static int xennet_remove(struct xenbus_device *dev) if (xenbus_read_driver_state(dev->otherend) != XenbusStateClosed) { xenbus_switch_state(dev, XenbusStateClosing); - wait_event(module_unload_q, + wait_event(module_wq, xenbus_read_driver_state(dev->otherend) == XenbusStateClosing || xenbus_read_driver_state(dev->otherend) == XenbusStateUnknown); xenbus_switch_state(dev, XenbusStateClosed); - wait_event(module_unload_q, + wait_event(module_wq, xenbus_read_driver_state(dev->otherend) == XenbusStateClosed || xenbus_read_driver_state(dev->otherend) == From a162c3511410b50f09c002fea56fea2153b679d0 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Thu, 6 Sep 2018 14:50:16 -0700 Subject: [PATCH 0766/1762] net_sched: properly cancel netlink dump on failure When nla_put*() fails after nla_nest_start(), we need to call nla_nest_cancel() to cancel the message, otherwise we end up calling nla_nest_end() like a success. Fixes: 0ed5269f9e41 ("net/sched: add tunnel option support to act_tunnel_key") Cc: Davide Caratti Cc: Simon Horman Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- net/sched/act_tunnel_key.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c index 28d58bbc953e..681f6f04e7da 100644 --- a/net/sched/act_tunnel_key.c +++ b/net/sched/act_tunnel_key.c @@ -412,8 +412,10 @@ static int tunnel_key_geneve_opts_dump(struct sk_buff *skb, nla_put_u8(skb, TCA_TUNNEL_KEY_ENC_OPT_GENEVE_TYPE, opt->type) || nla_put(skb, TCA_TUNNEL_KEY_ENC_OPT_GENEVE_DATA, - opt->length * 4, opt + 1)) + opt->length * 4, opt + 1)) { + nla_nest_cancel(skb, start); return -EMSGSIZE; + } len -= sizeof(struct geneve_opt) + opt->length * 4; src += sizeof(struct geneve_opt) + opt->length * 4; @@ -427,7 +429,7 @@ static int tunnel_key_opts_dump(struct sk_buff *skb, const struct ip_tunnel_info *info) { struct nlattr *start; - int err; + int err = -EINVAL; if (!info->options_len) return 0; @@ -439,9 +441,11 @@ static int tunnel_key_opts_dump(struct sk_buff *skb, if (info->key.tun_flags & TUNNEL_GENEVE_OPT) { err = tunnel_key_geneve_opts_dump(skb, info); if (err) - return err; + goto err_out; } else { - return -EINVAL; +err_out: + nla_nest_cancel(skb, start); + return err; } nla_nest_end(skb, start); From 5cf4a8532c992bb22a9ecd5f6d93f873f4eaccc2 Mon Sep 17 00:00:00 2001 From: Vincent Whitchurch Date: Thu, 6 Sep 2018 15:54:59 +0200 Subject: [PATCH 0767/1762] tcp: really ignore MSG_ZEROCOPY if no SO_ZEROCOPY According to the documentation in msg_zerocopy.rst, the SO_ZEROCOPY flag was introduced because send(2) ignores unknown message flags and any legacy application which was accidentally passing the equivalent of MSG_ZEROCOPY earlier should not see any new behaviour. Before commit f214f915e7db ("tcp: enable MSG_ZEROCOPY"), a send(2) call which passed the equivalent of MSG_ZEROCOPY without setting SO_ZEROCOPY would succeed. However, after that commit, it fails with -ENOBUFS. So it appears that the SO_ZEROCOPY flag fails to fulfill its intended purpose. Fix it. Fixes: f214f915e7db ("tcp: enable MSG_ZEROCOPY") Signed-off-by: Vincent Whitchurch Acked-by: Willem de Bruijn Signed-off-by: David S. Miller --- net/core/skbuff.c | 3 --- net/ipv4/tcp.c | 2 +- 2 files changed, 1 insertion(+), 4 deletions(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index c996c09d095f..b2c807f67aba 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -939,9 +939,6 @@ struct ubuf_info *sock_zerocopy_alloc(struct sock *sk, size_t size) WARN_ON_ONCE(!in_task()); - if (!sock_flag(sk, SOCK_ZEROCOPY)) - return NULL; - skb = sock_omalloc(sk, 0, GFP_KERNEL); if (!skb) return NULL; diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index b8af2fec5ad5..10c6246396cc 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1185,7 +1185,7 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size) flags = msg->msg_flags; - if (flags & MSG_ZEROCOPY && size) { + if (flags & MSG_ZEROCOPY && size && sock_flag(sk, SOCK_ZEROCOPY)) { if (sk->sk_state != TCP_ESTABLISHED) { err = -EINVAL; goto out_err; From 47b7360ce563e18c524ce92b55fb4da72b3b3578 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 8 Sep 2018 12:07:26 +0200 Subject: [PATCH 0768/1762] x86/apic/vector: Make error return value negative activate_managed() returns EINVAL instead of -EINVAL in case of error. While this is unlikely to happen, the positive return value would cause further malfunction at the call site. Fixes: 2db1f959d9dc ("x86/vector: Handle managed interrupts proper") Signed-off-by: Thomas Gleixner Cc: stable@vger.kernel.org --- arch/x86/kernel/apic/vector.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index 9f148e3d45b4..7654febd5102 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -413,7 +413,7 @@ static int activate_managed(struct irq_data *irqd) if (WARN_ON_ONCE(cpumask_empty(vector_searchmask))) { /* Something in the core code broke! Survive gracefully */ pr_err("Managed startup for irq %u, but no CPU\n", irqd->irq); - return EINVAL; + return -EINVAL; } ret = assign_managed_vector(irqd, vector_searchmask); From 9bc4f28af75a91aea0ae383f50b0a430c4509303 Mon Sep 17 00:00:00 2001 From: Nadav Amit Date: Sun, 2 Sep 2018 11:14:50 -0700 Subject: [PATCH 0769/1762] x86/mm: Use WRITE_ONCE() when setting PTEs When page-table entries are set, the compiler might optimize their assignment by using multiple instructions to set the PTE. This might turn into a security hazard if the user somehow manages to use the interim PTE. L1TF does not make our lives easier, making even an interim non-present PTE a security hazard. Using WRITE_ONCE() to set PTEs and friends should prevent this potential security hazard. I skimmed the differences in the binary with and without this patch. The differences are (obviously) greater when CONFIG_PARAVIRT=n as more code optimizations are possible. For better and worse, the impact on the binary with this patch is pretty small. Skimming the code did not cause anything to jump out as a security hazard, but it seems that at least move_soft_dirty_pte() caused set_pte_at() to use multiple writes. Signed-off-by: Nadav Amit Signed-off-by: Thomas Gleixner Acked-by: Peter Zijlstra (Intel) Cc: Dave Hansen Cc: Andi Kleen Cc: Josh Poimboeuf Cc: Michal Hocko Cc: Vlastimil Babka Cc: Sean Christopherson Cc: Andy Lutomirski Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180902181451.80520-1-namit@vmware.com --- arch/x86/include/asm/pgtable.h | 2 +- arch/x86/include/asm/pgtable_64.h | 22 +++++++++++----------- arch/x86/mm/pgtable.c | 8 ++++---- 3 files changed, 16 insertions(+), 16 deletions(-) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index e4ffa565a69f..690c0307afed 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -1195,7 +1195,7 @@ static inline pmd_t pmdp_establish(struct vm_area_struct *vma, return xchg(pmdp, pmd); } else { pmd_t old = *pmdp; - *pmdp = pmd; + WRITE_ONCE(*pmdp, pmd); return old; } } diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h index f773d5e6c8cc..ce2b59047cb8 100644 --- a/arch/x86/include/asm/pgtable_64.h +++ b/arch/x86/include/asm/pgtable_64.h @@ -55,15 +55,15 @@ struct mm_struct; void set_pte_vaddr_p4d(p4d_t *p4d_page, unsigned long vaddr, pte_t new_pte); void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte); +static inline void native_set_pte(pte_t *ptep, pte_t pte) +{ + WRITE_ONCE(*ptep, pte); +} + static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { - *ptep = native_make_pte(0); -} - -static inline void native_set_pte(pte_t *ptep, pte_t pte) -{ - *ptep = pte; + native_set_pte(ptep, native_make_pte(0)); } static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) @@ -73,7 +73,7 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) { - *pmdp = pmd; + WRITE_ONCE(*pmdp, pmd); } static inline void native_pmd_clear(pmd_t *pmd) @@ -109,7 +109,7 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp) static inline void native_set_pud(pud_t *pudp, pud_t pud) { - *pudp = pud; + WRITE_ONCE(*pudp, pud); } static inline void native_pud_clear(pud_t *pud) @@ -137,13 +137,13 @@ static inline void native_set_p4d(p4d_t *p4dp, p4d_t p4d) pgd_t pgd; if (pgtable_l5_enabled() || !IS_ENABLED(CONFIG_PAGE_TABLE_ISOLATION)) { - *p4dp = p4d; + WRITE_ONCE(*p4dp, p4d); return; } pgd = native_make_pgd(native_p4d_val(p4d)); pgd = pti_set_user_pgtbl((pgd_t *)p4dp, pgd); - *p4dp = native_make_p4d(native_pgd_val(pgd)); + WRITE_ONCE(*p4dp, native_make_p4d(native_pgd_val(pgd))); } static inline void native_p4d_clear(p4d_t *p4d) @@ -153,7 +153,7 @@ static inline void native_p4d_clear(p4d_t *p4d) static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd) { - *pgdp = pti_set_user_pgtbl(pgdp, pgd); + WRITE_ONCE(*pgdp, pti_set_user_pgtbl(pgdp, pgd)); } static inline void native_pgd_clear(pgd_t *pgd) diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index e848a4811785..ae394552fb94 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -269,7 +269,7 @@ static void mop_up_one_pmd(struct mm_struct *mm, pgd_t *pgdp) if (pgd_val(pgd) != 0) { pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd); - *pgdp = native_make_pgd(0); + pgd_clear(pgdp); paravirt_release_pmd(pgd_val(pgd) >> PAGE_SHIFT); pmd_free(mm, pmd); @@ -494,7 +494,7 @@ int ptep_set_access_flags(struct vm_area_struct *vma, int changed = !pte_same(*ptep, entry); if (changed && dirty) - *ptep = entry; + set_pte(ptep, entry); return changed; } @@ -509,7 +509,7 @@ int pmdp_set_access_flags(struct vm_area_struct *vma, VM_BUG_ON(address & ~HPAGE_PMD_MASK); if (changed && dirty) { - *pmdp = entry; + set_pmd(pmdp, entry); /* * We had a write-protection fault here and changed the pmd * to to more permissive. No need to flush the TLB for that, @@ -529,7 +529,7 @@ int pudp_set_access_flags(struct vm_area_struct *vma, unsigned long address, VM_BUG_ON(address & ~HPAGE_PUD_MASK); if (changed && dirty) { - *pudp = entry; + set_pud(pudp, entry); /* * We had a write-protection fault here and changed the pud * to to more permissive. No need to flush the TLB for that, From f0b0d88a825149ef3b06656886bc211c71dcb852 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Thu, 6 Sep 2018 16:37:24 -0700 Subject: [PATCH 0770/1762] kbuild: modules_install: warn when missing System.map file If there is no System.map file for "make modules_install", scripts/depmod.sh will silently exit with success, having done nothing. Since this is an unexpected situation, change it to report a Warning for the missing file. The behavior is not changed except for the Warning message. The (previous) silent success and new Warning can be reproduced by: $ make mrproper; make defconfig $ make modules; make modules_install and since System.map is produced by "make vmlinux", the steps above omit producing the System.map file. Reported-by: Masahiro Yamada Signed-off-by: Randy Dunlap Signed-off-by: Masahiro Yamada --- scripts/depmod.sh | 1 + 1 file changed, 1 insertion(+) diff --git a/scripts/depmod.sh b/scripts/depmod.sh index e5f0aad75b96..e083bcae343f 100755 --- a/scripts/depmod.sh +++ b/scripts/depmod.sh @@ -11,6 +11,7 @@ DEPMOD=$1 KERNELRELEASE=$2 if ! test -r System.map ; then + echo "Warning: modules_install: missing 'System.map' file. Skipping depmod." >&2 exit 0 fi From bcfb84a996f6fa90b5e6e2954b2accb7a4711097 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Mon, 3 Sep 2018 13:15:58 +1000 Subject: [PATCH 0771/1762] fs/cifs: suppress a string overflow warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A powerpc build of cifs with gcc v8.2.0 produces this warning: fs/cifs/cifssmb.c: In function ‘CIFSSMBNegotiate’: fs/cifs/cifssmb.c:605:3: warning: ‘strncpy’ writing 16 bytes into a region of size 1 overflows the destination [-Wstringop-overflow=] strncpy(pSMB->DialectsArray+count, protocols[i].name, 16); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Since we are already doing a strlen() on the source, change the strncpy to a memcpy(). Signed-off-by: Stephen Rothwell Signed-off-by: Steve French --- fs/cifs/cifssmb.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index dc2f4cf08fe9..5657b79dbc99 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -601,10 +601,15 @@ CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses) } count = 0; + /* + * We know that all the name entries in the protocols array + * are short (< 16 bytes anyway) and are NUL terminated. + */ for (i = 0; i < CIFS_NUM_PROT; i++) { - strncpy(pSMB->DialectsArray+count, protocols[i].name, 16); - count += strlen(protocols[i].name) + 1; - /* null at end of source and target buffers anyway */ + size_t len = strlen(protocols[i].name) + 1; + + memcpy(pSMB->DialectsArray+count, protocols[i].name, len); + count += len; } inc_rfc1001_len(pSMB, count); pSMB->ByteCount = cpu_to_le16(count); From 5890184d2b506f88886b7322d7d44464453bd3a6 Mon Sep 17 00:00:00 2001 From: Stefan Metzmacher Date: Fri, 7 Sep 2018 18:24:17 +0200 Subject: [PATCH 0772/1762] fs/cifs: require sha512 This got lost in commit 0fdfef9aa7ee68ddd508aef7c98630cfc054f8d6, which removed CONFIG_CIFS_SMB311. Signed-off-by: Stefan Metzmacher Fixes: 0fdfef9aa7ee68ddd ("smb3: simplify code by removing CONFIG_CIFS_SMB311") CC: Stable CC: linux-cifs@vger.kernel.org Signed-off-by: Steve French --- fs/cifs/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig index 35c83fe7dba0..abcd78e332fe 100644 --- a/fs/cifs/Kconfig +++ b/fs/cifs/Kconfig @@ -6,6 +6,7 @@ config CIFS select CRYPTO_MD4 select CRYPTO_MD5 select CRYPTO_SHA256 + select CRYPTO_SHA512 select CRYPTO_CMAC select CRYPTO_HMAC select CRYPTO_ARC4 From 772ed869f535b4ec2b134645c951ff22de4d3f79 Mon Sep 17 00:00:00 2001 From: Netanel Belgazal Date: Sun, 9 Sep 2018 08:15:20 +0000 Subject: [PATCH 0773/1762] net: ena: fix surprise unplug NULL dereference kernel crash Starting with driver version 1.5.0, in case of a surprise device unplug, there is a race caused by invoking ena_destroy_device() from two different places. As a result, the readless register might be accessed after it was destroyed. Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index c673ac2df65b..170830b807fe 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -3409,12 +3409,12 @@ static void ena_remove(struct pci_dev *pdev) netdev->rx_cpu_rmap = NULL; } #endif /* CONFIG_RFS_ACCEL */ - - unregister_netdev(netdev); del_timer_sync(&adapter->timer_service); cancel_work_sync(&adapter->reset_task); + unregister_netdev(netdev); + /* Reset the device only if the device is running. */ if (test_bit(ENA_FLAG_DEVICE_RUNNING, &adapter->flags)) ena_com_dev_reset(ena_dev, adapter->reset_reason); From ef5b0771d247379c90c8bf1332ff32f7f74bff7f Mon Sep 17 00:00:00 2001 From: Netanel Belgazal Date: Sun, 9 Sep 2018 08:15:21 +0000 Subject: [PATCH 0774/1762] net: ena: fix driver when PAGE_SIZE == 64kB The buffer length field in the ena rx descriptor is 16 bit, and the current driver passes a full page in each ena rx descriptor. When PAGE_SIZE equals 64kB or more, the buffer length field becomes zero. To solve this issue, limit the ena Rx descriptor to use 16kB even when allocating 64kB kernel pages. This change would not impact ena device functionality, as 16kB is still larger than maximum MTU. Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 10 +++++----- drivers/net/ethernet/amazon/ena/ena_netdev.h | 11 +++++++++++ 2 files changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 170830b807fe..69e684fd2787 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -461,7 +461,7 @@ static inline int ena_alloc_rx_page(struct ena_ring *rx_ring, return -ENOMEM; } - dma = dma_map_page(rx_ring->dev, page, 0, PAGE_SIZE, + dma = dma_map_page(rx_ring->dev, page, 0, ENA_PAGE_SIZE, DMA_FROM_DEVICE); if (unlikely(dma_mapping_error(rx_ring->dev, dma))) { u64_stats_update_begin(&rx_ring->syncp); @@ -478,7 +478,7 @@ static inline int ena_alloc_rx_page(struct ena_ring *rx_ring, rx_info->page_offset = 0; ena_buf = &rx_info->ena_buf; ena_buf->paddr = dma; - ena_buf->len = PAGE_SIZE; + ena_buf->len = ENA_PAGE_SIZE; return 0; } @@ -495,7 +495,7 @@ static void ena_free_rx_page(struct ena_ring *rx_ring, return; } - dma_unmap_page(rx_ring->dev, ena_buf->paddr, PAGE_SIZE, + dma_unmap_page(rx_ring->dev, ena_buf->paddr, ENA_PAGE_SIZE, DMA_FROM_DEVICE); __free_page(page); @@ -916,10 +916,10 @@ static struct sk_buff *ena_rx_skb(struct ena_ring *rx_ring, do { dma_unmap_page(rx_ring->dev, dma_unmap_addr(&rx_info->ena_buf, paddr), - PAGE_SIZE, DMA_FROM_DEVICE); + ENA_PAGE_SIZE, DMA_FROM_DEVICE); skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, rx_info->page, - rx_info->page_offset, len, PAGE_SIZE); + rx_info->page_offset, len, ENA_PAGE_SIZE); netif_dbg(rx_ring->adapter, rx_status, rx_ring->netdev, "rx skb updated. len %d. data_len %d\n", diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h index f1972b5ab650..7c7ae56c52cf 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.h +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h @@ -355,4 +355,15 @@ void ena_dump_stats_to_buf(struct ena_adapter *adapter, u8 *buf); int ena_get_sset_count(struct net_device *netdev, int sset); +/* The ENA buffer length fields is 16 bit long. So when PAGE_SIZE == 64kB the + * driver passas 0. + * Since the max packet size the ENA handles is ~9kB limit the buffer length to + * 16kB. + */ +#if PAGE_SIZE > SZ_16K +#define ENA_PAGE_SIZE SZ_16K +#else +#define ENA_PAGE_SIZE PAGE_SIZE +#endif + #endif /* !(ENA_H) */ From cfa324a514233b28a6934de619183eee941f02d7 Mon Sep 17 00:00:00 2001 From: Netanel Belgazal Date: Sun, 9 Sep 2018 08:15:22 +0000 Subject: [PATCH 0775/1762] net: ena: fix device destruction to gracefully free resources When ena_destroy_device() is called from ena_suspend(), the device is still reachable from the driver. Therefore, the driver can send a command to the device to free all resources. However, in all other cases of calling ena_destroy_device(), the device is potentially in an error state and unreachable from the driver. In these cases the driver must not send commands to the device. The current implementation does not request resource freeing from the device even when possible. We add the graceful parameter to ena_destroy_device() to enable resource freeing when possible, and use it in ena_suspend(). Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 69e684fd2787..035d47d2179a 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -76,7 +76,7 @@ MODULE_DEVICE_TABLE(pci, ena_pci_tbl); static int ena_rss_init_default(struct ena_adapter *adapter); static void check_for_admin_com_state(struct ena_adapter *adapter); -static void ena_destroy_device(struct ena_adapter *adapter); +static void ena_destroy_device(struct ena_adapter *adapter, bool graceful); static int ena_restore_device(struct ena_adapter *adapter); static void ena_tx_timeout(struct net_device *dev) @@ -1900,7 +1900,7 @@ static int ena_close(struct net_device *netdev) "Destroy failure, restarting device\n"); ena_dump_stats_to_dmesg(adapter); /* rtnl lock already obtained in dev_ioctl() layer */ - ena_destroy_device(adapter); + ena_destroy_device(adapter, false); ena_restore_device(adapter); } @@ -2550,7 +2550,7 @@ err_disable_msix: return rc; } -static void ena_destroy_device(struct ena_adapter *adapter) +static void ena_destroy_device(struct ena_adapter *adapter, bool graceful) { struct net_device *netdev = adapter->netdev; struct ena_com_dev *ena_dev = adapter->ena_dev; @@ -2563,7 +2563,8 @@ static void ena_destroy_device(struct ena_adapter *adapter) dev_up = test_bit(ENA_FLAG_DEV_UP, &adapter->flags); adapter->dev_up_before_reset = dev_up; - ena_com_set_admin_running_state(ena_dev, false); + if (!graceful) + ena_com_set_admin_running_state(ena_dev, false); if (test_bit(ENA_FLAG_DEV_UP, &adapter->flags)) ena_down(adapter); @@ -2665,7 +2666,7 @@ static void ena_fw_reset_device(struct work_struct *work) return; } rtnl_lock(); - ena_destroy_device(adapter); + ena_destroy_device(adapter, false); ena_restore_device(adapter); rtnl_unlock(); } @@ -3467,7 +3468,7 @@ static int ena_suspend(struct pci_dev *pdev, pm_message_t state) "ignoring device reset request as the device is being suspended\n"); clear_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags); } - ena_destroy_device(adapter); + ena_destroy_device(adapter, true); rtnl_unlock(); return 0; } From fe870c77efdf8682252545cbd3d29800d8379efc Mon Sep 17 00:00:00 2001 From: Netanel Belgazal Date: Sun, 9 Sep 2018 08:15:23 +0000 Subject: [PATCH 0776/1762] net: ena: fix potential double ena_destroy_device() ena_destroy_device() can potentially be called twice. To avoid this, check that the device is running and only then proceed destroying it. Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 035d47d2179a..a68c2a8d4da2 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -2556,6 +2556,9 @@ static void ena_destroy_device(struct ena_adapter *adapter, bool graceful) struct ena_com_dev *ena_dev = adapter->ena_dev; bool dev_up; + if (!test_bit(ENA_FLAG_DEVICE_RUNNING, &adapter->flags)) + return; + netif_carrier_off(netdev); del_timer_sync(&adapter->timer_service); @@ -2592,6 +2595,7 @@ static void ena_destroy_device(struct ena_adapter *adapter, bool graceful) adapter->reset_reason = ENA_REGS_RESET_NORMAL; clear_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags); + clear_bit(ENA_FLAG_DEVICE_RUNNING, &adapter->flags); } static int ena_restore_device(struct ena_adapter *adapter) @@ -2636,6 +2640,7 @@ static int ena_restore_device(struct ena_adapter *adapter) } } + set_bit(ENA_FLAG_DEVICE_RUNNING, &adapter->flags); mod_timer(&adapter->timer_service, round_jiffies(jiffies + HZ)); dev_err(&pdev->dev, "Device reset completed successfully\n"); From 944b28aa2982b4590d4d4dfc777cf85135dca2c0 Mon Sep 17 00:00:00 2001 From: Netanel Belgazal Date: Sun, 9 Sep 2018 08:15:24 +0000 Subject: [PATCH 0777/1762] net: ena: fix missing lock during device destruction acquire the rtnl_lock during device destruction to avoid using partially destroyed device. ena_remove() shares almost the same logic as ena_destroy_device(), so use ena_destroy_device() and avoid duplications. Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 20 +++++++------------- 1 file changed, 7 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index a68c2a8d4da2..b9ce2a6a87ed 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -3421,24 +3421,18 @@ static void ena_remove(struct pci_dev *pdev) unregister_netdev(netdev); - /* Reset the device only if the device is running. */ + /* If the device is running then we want to make sure the device will be + * reset to make sure no more events will be issued by the device. + */ if (test_bit(ENA_FLAG_DEVICE_RUNNING, &adapter->flags)) - ena_com_dev_reset(ena_dev, adapter->reset_reason); + set_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags); - ena_free_mgmnt_irq(adapter); - - ena_disable_msix(adapter); + rtnl_lock(); + ena_destroy_device(adapter, true); + rtnl_unlock(); free_netdev(netdev); - ena_com_mmio_reg_read_request_destroy(ena_dev); - - ena_com_abort_admin_commands(ena_dev); - - ena_com_wait_for_abort_completion(ena_dev); - - ena_com_admin_destroy(ena_dev); - ena_com_rss_destroy(ena_dev); ena_com_delete_debug_area(ena_dev); From 28abf4e9c9201eda5c4d29ea609d07e877b464b8 Mon Sep 17 00:00:00 2001 From: Netanel Belgazal Date: Sun, 9 Sep 2018 08:15:25 +0000 Subject: [PATCH 0778/1762] net: ena: fix missing calls to READ_ONCE Add READ_ONCE calls where necessary (for example when iterating over a memory field that gets updated by the hardware). Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller --- drivers/net/ethernet/amazon/ena/ena_com.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c index 17f12c18d225..c37deef3bcf1 100644 --- a/drivers/net/ethernet/amazon/ena/ena_com.c +++ b/drivers/net/ethernet/amazon/ena/ena_com.c @@ -459,7 +459,7 @@ static void ena_com_handle_admin_completion(struct ena_com_admin_queue *admin_qu cqe = &admin_queue->cq.entries[head_masked]; /* Go over all the completions */ - while ((cqe->acq_common_descriptor.flags & + while ((READ_ONCE(cqe->acq_common_descriptor.flags) & ENA_ADMIN_ACQ_COMMON_DESC_PHASE_MASK) == phase) { /* Do not read the rest of the completion entry before the * phase bit was validated @@ -637,7 +637,7 @@ static u32 ena_com_reg_bar_read32(struct ena_com_dev *ena_dev, u16 offset) mmiowb(); for (i = 0; i < timeout; i++) { - if (read_resp->req_id == mmio_read->seq_num) + if (READ_ONCE(read_resp->req_id) == mmio_read->seq_num) break; udelay(1); @@ -1796,8 +1796,8 @@ void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data) aenq_common = &aenq_e->aenq_common_desc; /* Go over all the events */ - while ((aenq_common->flags & ENA_ADMIN_AENQ_COMMON_DESC_PHASE_MASK) == - phase) { + while ((READ_ONCE(aenq_common->flags) & + ENA_ADMIN_AENQ_COMMON_DESC_PHASE_MASK) == phase) { pr_debug("AENQ! Group[%x] Syndrom[%x] timestamp: [%llus]\n", aenq_common->group, aenq_common->syndrom, (u64)aenq_common->timestamp_low + From 37dff155dcf57f6c08bf1641c5ddf9abd45f2b1f Mon Sep 17 00:00:00 2001 From: Netanel Belgazal Date: Sun, 9 Sep 2018 08:15:26 +0000 Subject: [PATCH 0779/1762] net: ena: fix incorrect usage of memory barriers Added memory barriers where they were missing to support multiple architectures, and removed redundant ones. As part of removing the redundant memory barriers and improving performance, we moved to more relaxed versions of memory barriers, as well as to the more relaxed version of writel - writel_relaxed, while maintaining correctness. Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller --- drivers/net/ethernet/amazon/ena/ena_com.c | 16 +++++----- drivers/net/ethernet/amazon/ena/ena_eth_com.c | 6 ++++ drivers/net/ethernet/amazon/ena/ena_eth_com.h | 8 ++--- drivers/net/ethernet/amazon/ena/ena_netdev.c | 30 +++++++------------ 4 files changed, 26 insertions(+), 34 deletions(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c index c37deef3bcf1..7635c38e77dd 100644 --- a/drivers/net/ethernet/amazon/ena/ena_com.c +++ b/drivers/net/ethernet/amazon/ena/ena_com.c @@ -464,7 +464,7 @@ static void ena_com_handle_admin_completion(struct ena_com_admin_queue *admin_qu /* Do not read the rest of the completion entry before the * phase bit was validated */ - rmb(); + dma_rmb(); ena_com_handle_single_admin_completion(admin_queue, cqe); head_masked++; @@ -627,15 +627,8 @@ static u32 ena_com_reg_bar_read32(struct ena_com_dev *ena_dev, u16 offset) mmio_read_reg |= mmio_read->seq_num & ENA_REGS_MMIO_REG_READ_REQ_ID_MASK; - /* make sure read_resp->req_id get updated before the hw can write - * there - */ - wmb(); + writel(mmio_read_reg, ena_dev->reg_bar + ENA_REGS_MMIO_REG_READ_OFF); - writel_relaxed(mmio_read_reg, - ena_dev->reg_bar + ENA_REGS_MMIO_REG_READ_OFF); - - mmiowb(); for (i = 0; i < timeout; i++) { if (READ_ONCE(read_resp->req_id) == mmio_read->seq_num) break; @@ -1798,6 +1791,11 @@ void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data) /* Go over all the events */ while ((READ_ONCE(aenq_common->flags) & ENA_ADMIN_AENQ_COMMON_DESC_PHASE_MASK) == phase) { + /* Make sure the phase bit (ownership) is as expected before + * reading the rest of the descriptor. + */ + dma_rmb(); + pr_debug("AENQ! Group[%x] Syndrom[%x] timestamp: [%llus]\n", aenq_common->group, aenq_common->syndrom, (u64)aenq_common->timestamp_low + diff --git a/drivers/net/ethernet/amazon/ena/ena_eth_com.c b/drivers/net/ethernet/amazon/ena/ena_eth_com.c index ea149c134e15..1c682b76190f 100644 --- a/drivers/net/ethernet/amazon/ena/ena_eth_com.c +++ b/drivers/net/ethernet/amazon/ena/ena_eth_com.c @@ -51,6 +51,11 @@ static inline struct ena_eth_io_rx_cdesc_base *ena_com_get_next_rx_cdesc( if (desc_phase != expected_phase) return NULL; + /* Make sure we read the rest of the descriptor after the phase bit + * has been read + */ + dma_rmb(); + return cdesc; } @@ -493,6 +498,7 @@ int ena_com_tx_comp_req_id_get(struct ena_com_io_cq *io_cq, u16 *req_id) if (cdesc_phase != expected_phase) return -EAGAIN; + dma_rmb(); if (unlikely(cdesc->req_id >= io_cq->q_depth)) { pr_err("Invalid req id %d\n", cdesc->req_id); return -EINVAL; diff --git a/drivers/net/ethernet/amazon/ena/ena_eth_com.h b/drivers/net/ethernet/amazon/ena/ena_eth_com.h index 6fdc753d9483..2f7657227cfe 100644 --- a/drivers/net/ethernet/amazon/ena/ena_eth_com.h +++ b/drivers/net/ethernet/amazon/ena/ena_eth_com.h @@ -107,8 +107,7 @@ static inline int ena_com_sq_empty_space(struct ena_com_io_sq *io_sq) return io_sq->q_depth - 1 - cnt; } -static inline int ena_com_write_sq_doorbell(struct ena_com_io_sq *io_sq, - bool relaxed) +static inline int ena_com_write_sq_doorbell(struct ena_com_io_sq *io_sq) { u16 tail; @@ -117,10 +116,7 @@ static inline int ena_com_write_sq_doorbell(struct ena_com_io_sq *io_sq, pr_debug("write submission queue doorbell for queue: %d tail: %d\n", io_sq->qid, tail); - if (relaxed) - writel_relaxed(tail, io_sq->db_addr); - else - writel(tail, io_sq->db_addr); + writel(tail, io_sq->db_addr); return 0; } diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index b9ce2a6a87ed..29b5774dd32d 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -551,14 +551,9 @@ static int ena_refill_rx_bufs(struct ena_ring *rx_ring, u32 num) rx_ring->qid, i, num); } - if (likely(i)) { - /* Add memory barrier to make sure the desc were written before - * issue a doorbell - */ - wmb(); - ena_com_write_sq_doorbell(rx_ring->ena_com_io_sq, true); - mmiowb(); - } + /* ena_com_write_sq_doorbell issues a wmb() */ + if (likely(i)) + ena_com_write_sq_doorbell(rx_ring->ena_com_io_sq); rx_ring->next_to_use = next_to_use; @@ -2112,12 +2107,6 @@ static netdev_tx_t ena_start_xmit(struct sk_buff *skb, struct net_device *dev) tx_ring->next_to_use = ENA_TX_RING_IDX_NEXT(next_to_use, tx_ring->ring_size); - /* This WMB is aimed to: - * 1 - perform smp barrier before reading next_to_completion - * 2 - make sure the desc were written before trigger DB - */ - wmb(); - /* stop the queue when no more space available, the packet can have up * to sgl_size + 2. one for the meta descriptor and one for header * (if the header is larger than tx_max_header_size). @@ -2136,10 +2125,11 @@ static netdev_tx_t ena_start_xmit(struct sk_buff *skb, struct net_device *dev) * stop the queue but meanwhile clean_tx_irq updates * next_to_completion and terminates. * The queue will remain stopped forever. - * To solve this issue this function perform rmb, check - * the wakeup condition and wake up the queue if needed. + * To solve this issue add a mb() to make sure that + * netif_tx_stop_queue() write is vissible before checking if + * there is additional space in the queue. */ - smp_rmb(); + smp_mb(); if (ena_com_sq_empty_space(tx_ring->ena_com_io_sq) > ENA_TX_WAKEUP_THRESH) { @@ -2151,8 +2141,10 @@ static netdev_tx_t ena_start_xmit(struct sk_buff *skb, struct net_device *dev) } if (netif_xmit_stopped(txq) || !skb->xmit_more) { - /* trigger the dma engine */ - ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq, false); + /* trigger the dma engine. ena_com_write_sq_doorbell() + * has a mb + */ + ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq); u64_stats_update_begin(&tx_ring->syncp); tx_ring->tx_stats.doorbells++; u64_stats_update_end(&tx_ring->syncp); From 52ea992cfac357b73180d5c051dca43bc8d20c2a Mon Sep 17 00:00:00 2001 From: Vakul Garg Date: Thu, 6 Sep 2018 21:41:40 +0530 Subject: [PATCH 0780/1762] net/tls: Set count of SG entries if sk_alloc_sg returns -ENOSPC tls_sw_sendmsg() allocates plaintext and encrypted SG entries using function sk_alloc_sg(). In case the number of SG entries hit MAX_SKB_FRAGS, sk_alloc_sg() returns -ENOSPC and sets the variable for current SG index to '0'. This leads to calling of function tls_push_record() with 'sg_encrypted_num_elem = 0' and later causes kernel crash. To fix this, set the number of SG elements to the number of elements in plaintext/encrypted SG arrays in case sk_alloc_sg() returns -ENOSPC. Fixes: 3c4d7559159b ("tls: kernel TLS support") Signed-off-by: Vakul Garg Signed-off-by: David S. Miller --- net/tls/tls_sw.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index 52fbe727d7c1..e28a6ff25d96 100644 --- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -125,6 +125,9 @@ static int alloc_encrypted_sg(struct sock *sk, int len) &ctx->sg_encrypted_num_elem, &ctx->sg_encrypted_size, 0); + if (rc == -ENOSPC) + ctx->sg_encrypted_num_elem = ARRAY_SIZE(ctx->sg_encrypted_data); + return rc; } @@ -138,6 +141,9 @@ static int alloc_plaintext_sg(struct sock *sk, int len) &ctx->sg_plaintext_num_elem, &ctx->sg_plaintext_size, tls_ctx->pending_open_record_frags); + if (rc == -ENOSPC) + ctx->sg_plaintext_num_elem = ARRAY_SIZE(ctx->sg_plaintext_data); + return rc; } From 5d407b071dc369c26a38398326ee2be53651cfe4 Mon Sep 17 00:00:00 2001 From: Taehee Yoo Date: Mon, 10 Sep 2018 02:47:05 +0900 Subject: [PATCH 0781/1762] ip: frags: fix crash in ip_do_fragment() A kernel crash occurrs when defragmented packet is fragmented in ip_do_fragment(). In defragment routine, skb_orphan() is called and skb->ip_defrag_offset is set. but skb->sk and skb->ip_defrag_offset are same union member. so that frag->sk is not NULL. Hence crash occurrs in skb->sk check routine in ip_do_fragment() when defragmented packet is fragmented. test commands: %iptables -t nat -I POSTROUTING -j MASQUERADE %hping3 192.168.4.2 -s 1000 -p 2000 -d 60000 splat looks like: [ 261.069429] kernel BUG at net/ipv4/ip_output.c:636! [ 261.075753] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 261.083854] CPU: 1 PID: 1349 Comm: hping3 Not tainted 4.19.0-rc2+ #3 [ 261.100977] RIP: 0010:ip_do_fragment+0x1613/0x2600 [ 261.106945] Code: e8 e2 38 e3 fe 4c 8b 44 24 18 48 8b 74 24 08 e9 92 f6 ff ff 80 3c 02 00 0f 85 da 07 00 00 48 8b b5 d0 00 00 00 e9 25 f6 ff ff <0f> 0b 0f 0b 44 8b 54 24 58 4c 8b 4c 24 18 4c 8b 5c 24 60 4c 8b 6c [ 261.127015] RSP: 0018:ffff8801031cf2c0 EFLAGS: 00010202 [ 261.134156] RAX: 1ffff1002297537b RBX: ffffed0020639e6e RCX: 0000000000000004 [ 261.142156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880114ba9bd8 [ 261.150157] RBP: ffff880114ba8a40 R08: ffffed0022975395 R09: ffffed0022975395 [ 261.158157] R10: 0000000000000001 R11: ffffed0022975394 R12: ffff880114ba9ca4 [ 261.166159] R13: 0000000000000010 R14: ffff880114ba9bc0 R15: dffffc0000000000 [ 261.174169] FS: 00007fbae2199700(0000) GS:ffff88011b400000(0000) knlGS:0000000000000000 [ 261.183012] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 261.189013] CR2: 00005579244fe000 CR3: 0000000119bf4000 CR4: 00000000001006e0 [ 261.198158] Call Trace: [ 261.199018] ? dst_output+0x180/0x180 [ 261.205011] ? save_trace+0x300/0x300 [ 261.209018] ? ip_copy_metadata+0xb00/0xb00 [ 261.213034] ? sched_clock_local+0xd4/0x140 [ 261.218158] ? kill_l4proto+0x120/0x120 [nf_conntrack] [ 261.223014] ? rt_cpu_seq_stop+0x10/0x10 [ 261.227014] ? find_held_lock+0x39/0x1c0 [ 261.233008] ip_finish_output+0x51d/0xb50 [ 261.237006] ? ip_fragment.constprop.56+0x220/0x220 [ 261.243011] ? nf_ct_l4proto_register_one+0x5b0/0x5b0 [nf_conntrack] [ 261.250152] ? rcu_is_watching+0x77/0x120 [ 261.255010] ? nf_nat_ipv4_out+0x1e/0x2b0 [nf_nat_ipv4] [ 261.261033] ? nf_hook_slow+0xb1/0x160 [ 261.265007] ip_output+0x1c7/0x710 [ 261.269005] ? ip_mc_output+0x13f0/0x13f0 [ 261.273002] ? __local_bh_enable_ip+0xe9/0x1b0 [ 261.278152] ? ip_fragment.constprop.56+0x220/0x220 [ 261.282996] ? nf_hook_slow+0xb1/0x160 [ 261.287007] raw_sendmsg+0x21f9/0x4420 [ 261.291008] ? dst_output+0x180/0x180 [ 261.297003] ? sched_clock_cpu+0x126/0x170 [ 261.301003] ? find_held_lock+0x39/0x1c0 [ 261.306155] ? stop_critical_timings+0x420/0x420 [ 261.311004] ? check_flags.part.36+0x450/0x450 [ 261.315005] ? _raw_spin_unlock_irq+0x29/0x40 [ 261.320995] ? _raw_spin_unlock_irq+0x29/0x40 [ 261.326142] ? cyc2ns_read_end+0x10/0x10 [ 261.330139] ? raw_bind+0x280/0x280 [ 261.334138] ? sched_clock_cpu+0x126/0x170 [ 261.338995] ? check_flags.part.36+0x450/0x450 [ 261.342991] ? __lock_acquire+0x4500/0x4500 [ 261.348994] ? inet_sendmsg+0x11c/0x500 [ 261.352989] ? dst_output+0x180/0x180 [ 261.357012] inet_sendmsg+0x11c/0x500 [ ... ] v2: - clear skb->sk at reassembly routine.(Eric Dumarzet) Fixes: fa0f527358bd ("ip: use rb trees for IP frag queue.") Suggested-by: Eric Dumazet Signed-off-by: Taehee Yoo Reviewed-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/ip_fragment.c | 1 + net/ipv6/netfilter/nf_conntrack_reasm.c | 1 + 2 files changed, 2 insertions(+) diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index 88281fbce88c..e7227128df2c 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -599,6 +599,7 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *skb, nextp = &fp->next; fp->prev = NULL; memset(&fp->rbnode, 0, sizeof(fp->rbnode)); + fp->sk = NULL; head->data_len += fp->len; head->len += fp->len; if (head->ip_summed != fp->ip_summed) diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index 2a14d8b65924..8f68a518d9db 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -445,6 +445,7 @@ nf_ct_frag6_reasm(struct frag_queue *fq, struct sk_buff *prev, struct net_devic else if (head->ip_summed == CHECKSUM_COMPLETE) head->csum = csum_add(head->csum, fp->csum); head->truesize += fp->truesize; + fp->sk = NULL; } sub_frag_mem_limit(fq->q.net, head->truesize); From 11da3a7f84f19c26da6f86af878298694ede0804 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 9 Sep 2018 17:26:43 -0700 Subject: [PATCH 0782/1762] Linux 4.19-rc3 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 19948e556941..4d5c883a98e5 100644 --- a/Makefile +++ b/Makefile @@ -2,7 +2,7 @@ VERSION = 4 PATCHLEVEL = 19 SUBLEVEL = 0 -EXTRAVERSION = -rc2 +EXTRAVERSION = -rc3 NAME = Merciless Moray # *DOCUMENTATION* From 119f94a6fefcc76d47075b83d2b73d04c895df78 Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Wed, 5 Sep 2018 18:52:22 +0300 Subject: [PATCH 0783/1762] cfg80211: Address some corner cases in scan result channel updating cfg80211_get_bss_channel() is used to update the RX channel based on the available frame payload information (channel number from DSSS Parameter Set element or HT Operation element). This is needed on 2.4 GHz channels where frames may be received on neighboring channels due to overlapping frequency range. This might of some use on the 5 GHz band in some corner cases, but things are more complex there since there is no n:1 or 1:n mapping between channel numbers and frequencies due to multiple different starting frequencies in different operating classes. This could result in ieee80211_channel_to_frequency() returning incorrect frequency and ieee80211_get_channel() returning incorrect channel information (or indication of no match). In the previous implementation, this could result in some scan results being dropped completely, e.g., for the 4.9 GHz channels. That prevented connection to such BSSs. Fix this by using the driver-provided channel pointer if ieee80211_get_channel() does not find matching channel data for the channel number in the frame payload and if the scan is done with 5 MHz or 10 MHz channel bandwidth. While doing this, also add comments describing what the function is trying to achieve to make it easier to understand what happens here and why. Signed-off-by: Jouni Malinen Signed-off-by: Johannes Berg --- net/wireless/scan.c | 58 ++++++++++++++++++++++++++++++++++++++------- 1 file changed, 49 insertions(+), 9 deletions(-) diff --git a/net/wireless/scan.c b/net/wireless/scan.c index d36c3eb7b931..d0e7472dd9fd 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -1058,13 +1058,23 @@ cfg80211_bss_update(struct cfg80211_registered_device *rdev, return NULL; } +/* + * Update RX channel information based on the available frame payload + * information. This is mainly for the 2.4 GHz band where frames can be received + * from neighboring channels and the Beacon frames use the DSSS Parameter Set + * element to indicate the current (transmitting) channel, but this might also + * be needed on other bands if RX frequency does not match with the actual + * operating channel of a BSS. + */ static struct ieee80211_channel * cfg80211_get_bss_channel(struct wiphy *wiphy, const u8 *ie, size_t ielen, - struct ieee80211_channel *channel) + struct ieee80211_channel *channel, + enum nl80211_bss_scan_width scan_width) { const u8 *tmp; u32 freq; int channel_number = -1; + struct ieee80211_channel *alt_channel; tmp = cfg80211_find_ie(WLAN_EID_DS_PARAMS, ie, ielen); if (tmp && tmp[1] == 1) { @@ -1078,16 +1088,45 @@ cfg80211_get_bss_channel(struct wiphy *wiphy, const u8 *ie, size_t ielen, } } - if (channel_number < 0) + if (channel_number < 0) { + /* No channel information in frame payload */ return channel; + } freq = ieee80211_channel_to_frequency(channel_number, channel->band); - channel = ieee80211_get_channel(wiphy, freq); - if (!channel) + alt_channel = ieee80211_get_channel(wiphy, freq); + if (!alt_channel) { + if (channel->band == NL80211_BAND_2GHZ) { + /* + * Better not allow unexpected channels when that could + * be going beyond the 1-11 range (e.g., discovering + * BSS on channel 12 when radio is configured for + * channel 11. + */ + return NULL; + } + + /* No match for the payload channel number - ignore it */ + return channel; + } + + if (scan_width == NL80211_BSS_CHAN_WIDTH_10 || + scan_width == NL80211_BSS_CHAN_WIDTH_5) { + /* + * Ignore channel number in 5 and 10 MHz channels where there + * may not be an n:1 or 1:n mapping between frequencies and + * channel numbers. + */ + return channel; + } + + /* + * Use the channel determined through the payload channel number + * instead of the RX channel reported by the driver. + */ + if (alt_channel->flags & IEEE80211_CHAN_DISABLED) return NULL; - if (channel->flags & IEEE80211_CHAN_DISABLED) - return NULL; - return channel; + return alt_channel; } /* Returned bss is reference counted and must be cleaned up appropriately. */ @@ -1112,7 +1151,8 @@ cfg80211_inform_bss_data(struct wiphy *wiphy, (data->signal < 0 || data->signal > 100))) return NULL; - channel = cfg80211_get_bss_channel(wiphy, ie, ielen, data->chan); + channel = cfg80211_get_bss_channel(wiphy, ie, ielen, data->chan, + data->scan_width); if (!channel) return NULL; @@ -1210,7 +1250,7 @@ cfg80211_inform_bss_frame_data(struct wiphy *wiphy, return NULL; channel = cfg80211_get_bss_channel(wiphy, mgmt->u.beacon.variable, - ielen, data->chan); + ielen, data->chan, data->scan_width); if (!channel) return NULL; From cb59bc14e830028d2244861216df038165d7625d Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 5 Sep 2018 13:34:02 +0200 Subject: [PATCH 0784/1762] mac80211: TDLS: fix skb queue/priority assignment If the TDLS setup happens over a connection to an AP that doesn't have QoS, we nevertheless assign a non-zero TID (skb->priority) and queue mapping, which may confuse us or drivers later. Fix it by just assigning the special skb->priority and then using ieee80211_select_queue() just like other data frames would go through. Signed-off-by: Johannes Berg --- net/mac80211/tdls.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c index 5cd5e6e5834e..6c647f425e05 100644 --- a/net/mac80211/tdls.c +++ b/net/mac80211/tdls.c @@ -16,6 +16,7 @@ #include "ieee80211_i.h" #include "driver-ops.h" #include "rate.h" +#include "wme.h" /* give usermode some time for retries in setting up the TDLS session */ #define TDLS_PEER_SETUP_TIMEOUT (15 * HZ) @@ -1010,14 +1011,13 @@ ieee80211_tdls_prep_mgmt_packet(struct wiphy *wiphy, struct net_device *dev, switch (action_code) { case WLAN_TDLS_SETUP_REQUEST: case WLAN_TDLS_SETUP_RESPONSE: - skb_set_queue_mapping(skb, IEEE80211_AC_BK); - skb->priority = 2; + skb->priority = 256 + 2; break; default: - skb_set_queue_mapping(skb, IEEE80211_AC_VI); - skb->priority = 5; + skb->priority = 256 + 5; break; } + skb_set_queue_mapping(skb, ieee80211_select_queue(sdata, skb)); /* * Set the WLAN_TDLS_TEARDOWN flag to indicate a teardown in progress. From c42055105785580563535e6d3143cad95c7ac7ee Mon Sep 17 00:00:00 2001 From: Yuan-Chi Pang Date: Thu, 6 Sep 2018 16:57:48 +0800 Subject: [PATCH 0785/1762] mac80211: fix TX status reporting for ieee80211s TX status reporting to ieee80211s is through ieee80211s_update_metric. There are two problems about ieee80211s_update_metric: 1. The purpose is to estimate the fail probability to a specific link. No need to restrict to data frame. 2. Current implementation does not work if wireless driver does not pass tx_status with skb. Fix this by removing ieee80211_is_data condition, passing ieee80211_tx_status directly to ieee80211s_update_metric, and putting it in both __ieee80211_tx_status and ieee80211_tx_status_ext. Signed-off-by: Yuan-Chi Pang Signed-off-by: Johannes Berg --- net/mac80211/mesh.h | 3 ++- net/mac80211/mesh_hwmp.c | 9 +++------ net/mac80211/status.c | 4 +++- 3 files changed, 8 insertions(+), 8 deletions(-) diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index ee56f18cad3f..21526630bf65 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -217,7 +217,8 @@ void mesh_rmc_free(struct ieee80211_sub_if_data *sdata); int mesh_rmc_init(struct ieee80211_sub_if_data *sdata); void ieee80211s_init(void); void ieee80211s_update_metric(struct ieee80211_local *local, - struct sta_info *sta, struct sk_buff *skb); + struct sta_info *sta, + struct ieee80211_tx_status *st); void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata); void ieee80211_mesh_teardown_sdata(struct ieee80211_sub_if_data *sdata); int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata); diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index daf9db3c8f24..6950cd0bf594 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -295,15 +295,12 @@ int mesh_path_error_tx(struct ieee80211_sub_if_data *sdata, } void ieee80211s_update_metric(struct ieee80211_local *local, - struct sta_info *sta, struct sk_buff *skb) + struct sta_info *sta, + struct ieee80211_tx_status *st) { - struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + struct ieee80211_tx_info *txinfo = st->info; int failed; - if (!ieee80211_is_data(hdr->frame_control)) - return; - failed = !(txinfo->flags & IEEE80211_TX_STAT_ACK); /* moving average, scaled to 100. diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 001a869c059c..91d7c0cd1882 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -808,7 +808,7 @@ static void __ieee80211_tx_status(struct ieee80211_hw *hw, rate_control_tx_status(local, sband, status); if (ieee80211_vif_is_mesh(&sta->sdata->vif)) - ieee80211s_update_metric(local, sta, skb); + ieee80211s_update_metric(local, sta, status); if (!(info->flags & IEEE80211_TX_CTL_INJECTED) && acked) ieee80211_frame_acked(sta, skb); @@ -969,6 +969,8 @@ void ieee80211_tx_status_ext(struct ieee80211_hw *hw, } rate_control_tx_status(local, sband, status); + if (ieee80211_vif_is_mesh(&sta->sdata->vif)) + ieee80211s_update_metric(local, sta, status); } if (acked || noack_success) { From 16160c1946b702dcfa95ef63389a56deb2f1c7cb Mon Sep 17 00:00:00 2001 From: Jacek Tomaka Date: Thu, 2 Aug 2018 09:38:30 +0800 Subject: [PATCH 0786/1762] perf/x86/intel: Add support/quirk for the MISPREDICT bit on Knights Landing CPUs Problem: perf did not show branch predicted/mispredicted bit in brstack. Output of perf -F brstack for profile collected Before: 0x4fdbcd/0x4fdc03/-/-/-/0 0x45f4c1/0x4fdba0/-/-/-/0 0x45f544/0x45f4bb/-/-/-/0 0x45f555/0x45f53c/-/-/-/0 0x7f66901cc24b/0x45f555/-/-/-/0 0x7f66901cc22e/0x7f66901cc23d/-/-/-/0 0x7f66901cc1ff/0x7f66901cc20f/-/-/-/0 0x7f66901cc1e8/0x7f66901cc1fc/-/-/-/0 After: 0x4fdbcd/0x4fdc03/P/-/-/0 0x45f4c1/0x4fdba0/P/-/-/0 0x45f544/0x45f4bb/P/-/-/0 0x45f555/0x45f53c/P/-/-/0 0x7f66901cc24b/0x45f555/P/-/-/0 0x7f66901cc22e/0x7f66901cc23d/P/-/-/0 0x7f66901cc1ff/0x7f66901cc20f/P/-/-/0 0x7f66901cc1e8/0x7f66901cc1fc/P/-/-/0 Cause: As mentioned in Software Development Manual vol 3, 17.4.8.1, IA32_PERF_CAPABILITIES[5:0] indicates the format of the address that is stored in the LBR stack. Knights Landing reports 1 (LBR_FORMAT_LIP) as its format. Despite that, registers containing FROM address of the branch, do have MISPREDICT bit but because of the format indicated in IA32_PERF_CAPABILITIES[5:0], LBR did not read MISPREDICT bit. Solution: Teach LBR about above Knights Landing quirk and make it read MISPREDICT bit. Signed-off-by: Jacek Tomaka Signed-off-by: Peter Zijlstra (Intel) Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20180802013830.10600-1-jacekt@dugeo.com Signed-off-by: Ingo Molnar --- arch/x86/events/intel/lbr.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c index f3e006bed9a7..c88ed39582a1 100644 --- a/arch/x86/events/intel/lbr.c +++ b/arch/x86/events/intel/lbr.c @@ -1272,4 +1272,8 @@ void intel_pmu_lbr_init_knl(void) x86_pmu.lbr_sel_mask = LBR_SEL_MASK; x86_pmu.lbr_sel_map = snb_lbr_sel_map; + + /* Knights Landing does have MISPREDICT bit */ + if (x86_pmu.intel_cap.lbr_format == LBR_FORMAT_LIP) + x86_pmu.intel_cap.lbr_format = LBR_FORMAT_EIP_FLAGS; } From 09121255c784fd36ad6237a4e239c634b0209de0 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 29 Aug 2018 14:13:13 +0200 Subject: [PATCH 0787/1762] perf/UAPI: Clearly mark __PERF_SAMPLE_CALLCHAIN_EARLY as internal use Vince noted that commit: 6cbc304f2f36 ("perf/x86/intel: Fix unwind errors from PEBS entries (mk-II)") 'leaked' __PERF_SAMPLE_CALLCHAIN_EARLY into the UAPI namespace. And while sys_perf_event_open() will error out if you try to use it, it is exposed. Clearly mark it for internal use only to avoid any confusion. Requested-by: Vince Weaver Signed-off-by: Peter Zijlstra (Intel) Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar --- include/uapi/linux/perf_event.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index eeb787b1c53c..f35eb72739c0 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -144,7 +144,7 @@ enum perf_event_sample_format { PERF_SAMPLE_MAX = 1U << 20, /* non-ABI */ - __PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63, + __PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63, /* non-ABI; internal use */ }; /* From e13e2366d8415e029fe96a62502955083e272cef Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Mon, 3 Sep 2018 16:07:08 +0200 Subject: [PATCH 0788/1762] locking/mutex: Fix mutex debug call and ww_mutex documentation The following commit: 08295b3b5bee ("Implement an algorithm choice for Wound-Wait mutexes") introduced a reference in the documentation to a function that was removed in an earlier commit. It also forgot to remove a call to debug_mutex_add_waiter() which is now unconditionally called by __mutex_add_waiter(). Fix those bugs. Signed-off-by: Thomas Hellstrom Signed-off-by: Peter Zijlstra (Intel) Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: dri-devel@lists.freedesktop.org Fixes: 08295b3b5bee ("Implement an algorithm choice for Wound-Wait mutexes") Link: http://lkml.kernel.org/r/20180903140708.2401-1-thellstrom@vmware.com Signed-off-by: Ingo Molnar --- kernel/locking/mutex.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c index 1a81a1257b3f..3f8a35104285 100644 --- a/kernel/locking/mutex.c +++ b/kernel/locking/mutex.c @@ -389,7 +389,7 @@ static bool __ww_mutex_wound(struct mutex *lock, /* * wake_up_process() paired with set_current_state() * inserts sufficient barriers to make sure @owner either sees - * it's wounded in __ww_mutex_lock_check_stamp() or has a + * it's wounded in __ww_mutex_check_kill() or has a * wakeup pending to re-read the wounded state. */ if (owner != current) @@ -946,7 +946,6 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass, } debug_mutex_lock_common(lock, &waiter); - debug_mutex_add_waiter(lock, &waiter, current); lock_contended(&lock->dep_map, ip); From 5f0abea6ab6dd3104fc00c64a86d58b5d59a3818 Mon Sep 17 00:00:00 2001 From: Gao Xiang Date: Thu, 6 Sep 2018 17:01:47 +0800 Subject: [PATCH 0789/1762] staging: erofs: rename superblock flags (MS_xyz -> SB_xyz) This patch follows commit 1751e8a6cb93 ("Rename superblock flags (MS_xyz -> SB_xyz)") and after commit ("vfs: Suppress MS_* flag defs within the kernel unless explicitly enabled"), there is no MS_RDONLY and MS_NOATIME at all. Reported-by: Stephen Rothwell Reviewed-by: Chao Yu Signed-off-by: Gao Xiang Reviewed-by: David Howells Signed-off-by: Greg Kroah-Hartman --- drivers/staging/erofs/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/erofs/super.c b/drivers/staging/erofs/super.c index 1aec509c805f..2df9768edac9 100644 --- a/drivers/staging/erofs/super.c +++ b/drivers/staging/erofs/super.c @@ -340,7 +340,7 @@ static int erofs_read_super(struct super_block *sb, goto err_sbread; sb->s_magic = EROFS_SUPER_MAGIC; - sb->s_flags |= MS_RDONLY | MS_NOATIME; + sb->s_flags |= SB_RDONLY | SB_NOATIME; sb->s_maxbytes = MAX_LFS_FILESIZE; sb->s_time_gran = 1; @@ -627,7 +627,7 @@ static int erofs_remount(struct super_block *sb, int *flags, char *data) { BUG_ON(!sb_rdonly(sb)); - *flags |= MS_RDONLY; + *flags |= SB_RDONLY; return 0; } From e73e81975f2447e6f556100cada64a18ec631cbb Mon Sep 17 00:00:00 2001 From: Jiada Wang Date: Tue, 31 Jul 2018 21:12:22 +0900 Subject: [PATCH 0790/1762] sched/debug: Fix potential deadlock when writing to sched_features The following lockdep report can be triggered by writing to /sys/kernel/debug/sched_features: ====================================================== WARNING: possible circular locking dependency detected 4.18.0-rc6-00152-gcd3f77d74ac3-dirty #18 Not tainted ------------------------------------------------------ sh/3358 is trying to acquire lock: 000000004ad3989d (cpu_hotplug_lock.rw_sem){++++}, at: static_key_enable+0x14/0x30 but task is already holding lock: 00000000c1b31a88 (&sb->s_type->i_mutex_key#3){+.+.}, at: sched_feat_write+0x160/0x428 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&sb->s_type->i_mutex_key#3){+.+.}: lock_acquire+0xb8/0x148 down_write+0xac/0x140 start_creating+0x5c/0x168 debugfs_create_dir+0x18/0x220 opp_debug_register+0x8c/0x120 _add_opp_dev+0x104/0x1f8 dev_pm_opp_get_opp_table+0x174/0x340 _of_add_opp_table_v2+0x110/0x760 dev_pm_opp_of_add_table+0x5c/0x240 dev_pm_opp_of_cpumask_add_table+0x5c/0x100 cpufreq_init+0x160/0x430 cpufreq_online+0x1cc/0xe30 cpufreq_add_dev+0x78/0x198 subsys_interface_register+0x168/0x270 cpufreq_register_driver+0x1c8/0x278 dt_cpufreq_probe+0xdc/0x1b8 platform_drv_probe+0xb4/0x168 driver_probe_device+0x318/0x4b0 __device_attach_driver+0xfc/0x1f0 bus_for_each_drv+0xf8/0x180 __device_attach+0x164/0x200 device_initial_probe+0x10/0x18 bus_probe_device+0x110/0x178 device_add+0x6d8/0x908 platform_device_add+0x138/0x3d8 platform_device_register_full+0x1cc/0x1f8 cpufreq_dt_platdev_init+0x174/0x1bc do_one_initcall+0xb8/0x310 kernel_init_freeable+0x4b8/0x56c kernel_init+0x10/0x138 ret_from_fork+0x10/0x18 -> #2 (opp_table_lock){+.+.}: lock_acquire+0xb8/0x148 __mutex_lock+0x104/0xf50 mutex_lock_nested+0x1c/0x28 _of_add_opp_table_v2+0xb4/0x760 dev_pm_opp_of_add_table+0x5c/0x240 dev_pm_opp_of_cpumask_add_table+0x5c/0x100 cpufreq_init+0x160/0x430 cpufreq_online+0x1cc/0xe30 cpufreq_add_dev+0x78/0x198 subsys_interface_register+0x168/0x270 cpufreq_register_driver+0x1c8/0x278 dt_cpufreq_probe+0xdc/0x1b8 platform_drv_probe+0xb4/0x168 driver_probe_device+0x318/0x4b0 __device_attach_driver+0xfc/0x1f0 bus_for_each_drv+0xf8/0x180 __device_attach+0x164/0x200 device_initial_probe+0x10/0x18 bus_probe_device+0x110/0x178 device_add+0x6d8/0x908 platform_device_add+0x138/0x3d8 platform_device_register_full+0x1cc/0x1f8 cpufreq_dt_platdev_init+0x174/0x1bc do_one_initcall+0xb8/0x310 kernel_init_freeable+0x4b8/0x56c kernel_init+0x10/0x138 ret_from_fork+0x10/0x18 -> #1 (subsys mutex#6){+.+.}: lock_acquire+0xb8/0x148 __mutex_lock+0x104/0xf50 mutex_lock_nested+0x1c/0x28 subsys_interface_register+0xd8/0x270 cpufreq_register_driver+0x1c8/0x278 dt_cpufreq_probe+0xdc/0x1b8 platform_drv_probe+0xb4/0x168 driver_probe_device+0x318/0x4b0 __device_attach_driver+0xfc/0x1f0 bus_for_each_drv+0xf8/0x180 __device_attach+0x164/0x200 device_initial_probe+0x10/0x18 bus_probe_device+0x110/0x178 device_add+0x6d8/0x908 platform_device_add+0x138/0x3d8 platform_device_register_full+0x1cc/0x1f8 cpufreq_dt_platdev_init+0x174/0x1bc do_one_initcall+0xb8/0x310 kernel_init_freeable+0x4b8/0x56c kernel_init+0x10/0x138 ret_from_fork+0x10/0x18 -> #0 (cpu_hotplug_lock.rw_sem){++++}: __lock_acquire+0x203c/0x21d0 lock_acquire+0xb8/0x148 cpus_read_lock+0x58/0x1c8 static_key_enable+0x14/0x30 sched_feat_write+0x314/0x428 full_proxy_write+0xa0/0x138 __vfs_write+0xd8/0x388 vfs_write+0xdc/0x318 ksys_write+0xb4/0x138 sys_write+0xc/0x18 __sys_trace_return+0x0/0x4 other info that might help us debug this: Chain exists of: cpu_hotplug_lock.rw_sem --> opp_table_lock --> &sb->s_type->i_mutex_key#3 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sb->s_type->i_mutex_key#3); lock(opp_table_lock); lock(&sb->s_type->i_mutex_key#3); lock(cpu_hotplug_lock.rw_sem); *** DEADLOCK *** 2 locks held by sh/3358: #0: 00000000a8c4b363 (sb_writers#10){.+.+}, at: vfs_write+0x238/0x318 #1: 00000000c1b31a88 (&sb->s_type->i_mutex_key#3){+.+.}, at: sched_feat_write+0x160/0x428 stack backtrace: CPU: 5 PID: 3358 Comm: sh Not tainted 4.18.0-rc6-00152-gcd3f77d74ac3-dirty #18 Hardware name: Renesas H3ULCB Kingfisher board based on r8a7795 ES2.0+ (DT) Call trace: dump_backtrace+0x0/0x288 show_stack+0x14/0x20 dump_stack+0x13c/0x1ac print_circular_bug.isra.10+0x270/0x438 check_prev_add.constprop.16+0x4dc/0xb98 __lock_acquire+0x203c/0x21d0 lock_acquire+0xb8/0x148 cpus_read_lock+0x58/0x1c8 static_key_enable+0x14/0x30 sched_feat_write+0x314/0x428 full_proxy_write+0xa0/0x138 __vfs_write+0xd8/0x388 vfs_write+0xdc/0x318 ksys_write+0xb4/0x138 sys_write+0xc/0x18 __sys_trace_return+0x0/0x4 This is because when loading the cpufreq_dt module we first acquire cpu_hotplug_lock.rw_sem lock, then in cpufreq_init(), we are taking the &sb->s_type->i_mutex_key lock. But when writing to /sys/kernel/debug/sched_features, the cpu_hotplug_lock.rw_sem lock depends on the &sb->s_type->i_mutex_key lock. To fix this bug, reverse the lock acquisition order when writing to sched_features, this way cpu_hotplug_lock.rw_sem no longer depends on &sb->s_type->i_mutex_key. Tested-by: Dietmar Eggemann Signed-off-by: Jiada Wang Signed-off-by: Peter Zijlstra (Intel) Cc: Eugeniu Rosca Cc: George G. Davis Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20180731121222.26195-1-jiada_wang@mentor.com Signed-off-by: Ingo Molnar --- kernel/sched/debug.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 60caf1fb94e0..6383aa6a60ca 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -89,12 +89,12 @@ struct static_key sched_feat_keys[__SCHED_FEAT_NR] = { static void sched_feat_disable(int i) { - static_key_disable(&sched_feat_keys[i]); + static_key_disable_cpuslocked(&sched_feat_keys[i]); } static void sched_feat_enable(int i) { - static_key_enable(&sched_feat_keys[i]); + static_key_enable_cpuslocked(&sched_feat_keys[i]); } #else static void sched_feat_disable(int i) { }; @@ -146,9 +146,11 @@ sched_feat_write(struct file *filp, const char __user *ubuf, /* Ensure the static_key remains in a consistent state */ inode = file_inode(filp); + cpus_read_lock(); inode_lock(inode); ret = sched_feat_set(cmp); inode_unlock(inode); + cpus_read_unlock(); if (ret < 0) return ret; From e5e96fafd9028b1478b165db78c52d981c14f471 Mon Sep 17 00:00:00 2001 From: Srikar Dronamraju Date: Fri, 10 Aug 2018 22:30:18 +0530 Subject: [PATCH 0791/1762] sched/topology: Set correct NUMA topology type With the following commit: 051f3ca02e46 ("sched/topology: Introduce NUMA identity node sched domain") the scheduler introduced a new NUMA level. However this leads to the NUMA topology on 2 node systems to not be marked as NUMA_DIRECT anymore. After this commit, it gets reported as NUMA_BACKPLANE, because sched_domains_numa_level is now 2 on 2 node systems. Fix this by allowing setting systems that have up to 2 NUMA levels as NUMA_DIRECT. While here remove code that assumes that level can be 0. Signed-off-by: Srikar Dronamraju Signed-off-by: Peter Zijlstra (Intel) Cc: Andre Wild Cc: Heiko Carstens Cc: Linus Torvalds Cc: Mel Gorman Cc: Michael Ellerman Cc: Peter Zijlstra Cc: Rik van Riel Cc: Suravee Suthikulpanit Cc: Thomas Gleixner Cc: linuxppc-dev Fixes: 051f3ca02e46 "Introduce NUMA identity node sched domain" Link: http://lkml.kernel.org/r/1533920419-17410-1-git-send-email-srikar@linux.vnet.ibm.com Signed-off-by: Ingo Molnar --- kernel/sched/topology.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index 56a0fed30c0a..505a41c42b96 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -1295,7 +1295,7 @@ static void init_numa_topology_type(void) n = sched_max_numa_distance; - if (sched_domains_numa_levels <= 1) { + if (sched_domains_numa_levels <= 2) { sched_numa_topology_type = NUMA_DIRECT; return; } @@ -1380,9 +1380,6 @@ void sched_init_numa(void) break; } - if (!level) - return; - /* * 'level' contains the number of unique distances * From 12b04875d666e83d27511df25580de84505bc758 Mon Sep 17 00:00:00 2001 From: Vincent Guittot Date: Fri, 31 Aug 2018 17:22:55 +0200 Subject: [PATCH 0792/1762] sched/pelt: Fix update_blocked_averages() for RT and DL classes update_blocked_averages() is called to periodiccally decay the stalled load of idle CPUs and to sync all loads before running load balance. When cfs rq is idle, it trigs a load balance during pick_next_task_fair() in order to potentially pull tasks and to use this newly idle CPU. This load balance happens whereas prev task from another class has not been put and its utilization updated yet. This may lead to wrongly account running time as idle time for RT or DL classes. Test that no RT or DL task is running when updating their utilization in update_blocked_averages(). We still update RT and DL utilization instead of simply skipping them to make sure that all metrics are synced when used during load balance. Signed-off-by: Vincent Guittot Signed-off-by: Peter Zijlstra (Intel) Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Fixes: 371bf4273269 ("sched/rt: Add rt_rq utilization tracking") Fixes: 3727e0e16340 ("sched/dl: Add dl_rq utilization tracking") Link: http://lkml.kernel.org/r/1535728975-22799-1-git-send-email-vincent.guittot@linaro.org Signed-off-by: Ingo Molnar --- kernel/sched/fair.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index b39fb596f6c1..8cff8d55ee95 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -7263,6 +7263,7 @@ static void update_blocked_averages(int cpu) { struct rq *rq = cpu_rq(cpu); struct cfs_rq *cfs_rq, *pos; + const struct sched_class *curr_class; struct rq_flags rf; bool done = true; @@ -7299,8 +7300,10 @@ static void update_blocked_averages(int cpu) if (cfs_rq_has_blocked(cfs_rq)) done = false; } - update_rt_rq_load_avg(rq_clock_task(rq), rq, 0); - update_dl_rq_load_avg(rq_clock_task(rq), rq, 0); + + curr_class = rq->curr->sched_class; + update_rt_rq_load_avg(rq_clock_task(rq), rq, curr_class == &rt_sched_class); + update_dl_rq_load_avg(rq_clock_task(rq), rq, curr_class == &dl_sched_class); update_irq_load_avg(rq, 0); /* Don't need periodic decay once load/util_avg are null */ if (others_have_blocked(rq)) @@ -7365,13 +7368,16 @@ static inline void update_blocked_averages(int cpu) { struct rq *rq = cpu_rq(cpu); struct cfs_rq *cfs_rq = &rq->cfs; + const struct sched_class *curr_class; struct rq_flags rf; rq_lock_irqsave(rq, &rf); update_rq_clock(rq); update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq); - update_rt_rq_load_avg(rq_clock_task(rq), rq, 0); - update_dl_rq_load_avg(rq_clock_task(rq), rq, 0); + + curr_class = rq->curr->sched_class; + update_rt_rq_load_avg(rq_clock_task(rq), rq, curr_class == &rt_sched_class); + update_dl_rq_load_avg(rq_clock_task(rq), rq, curr_class == &dl_sched_class); update_irq_load_avg(rq, 0); #ifdef CONFIG_NO_HZ_COMMON rq->last_blocked_load_update_tick = jiffies; From d0cdb3ce8834332d918fc9c8ff74f8a169ec9abe Mon Sep 17 00:00:00 2001 From: Steve Muckle Date: Fri, 31 Aug 2018 15:42:17 -0700 Subject: [PATCH 0793/1762] sched/fair: Fix vruntime_normalized() for remote non-migration wakeup When a task which previously ran on a given CPU is remotely queued to wake up on that same CPU, there is a period where the task's state is TASK_WAKING and its vruntime is not normalized. This is not accounted for in vruntime_normalized() which will cause an error in the task's vruntime if it is switched from the fair class during this time. For example if it is boosted to RT priority via rt_mutex_setprio(), rq->min_vruntime will not be subtracted from the task's vruntime but it will be added again when the task returns to the fair class. The task's vruntime will have been erroneously doubled and the effective priority of the task will be reduced. Note this will also lead to inflation of all vruntimes since the doubled vruntime value will become the rq's min_vruntime when other tasks leave the rq. This leads to repeated doubling of the vruntime and priority penalty. Fix this by recognizing a WAKING task's vruntime as normalized only if sched_remote_wakeup is true. This indicates a migration, in which case the vruntime would have been normalized in migrate_task_rq_fair(). Based on a similar patch from John Dias . Suggested-by: Peter Zijlstra Tested-by: Dietmar Eggemann Signed-off-by: Steve Muckle Signed-off-by: Peter Zijlstra (Intel) Cc: Chris Redpath Cc: John Dias Cc: Linus Torvalds Cc: Miguel de Dios Cc: Morten Rasmussen Cc: Patrick Bellasi Cc: Paul Turner Cc: Quentin Perret Cc: Thomas Gleixner Cc: Todd Kjos Cc: kernel-team@android.com Fixes: b5179ac70de8 ("sched/fair: Prepare to fix fairness problems on migration") Link: http://lkml.kernel.org/r/20180831224217.169476-1-smuckle@google.com Signed-off-by: Ingo Molnar --- kernel/sched/fair.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 8cff8d55ee95..c6b7d6daab20 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -9644,7 +9644,8 @@ static inline bool vruntime_normalized(struct task_struct *p) * - A task which has been woken up by try_to_wake_up() and * waiting for actually being woken up by sched_ttwu_pending(). */ - if (!se->sum_exec_runtime || p->state == TASK_WAKING) + if (!se->sum_exec_runtime || + (p->state == TASK_WAKING && p->sched_remote_wakeup)) return true; return false; From 287cdaac5700c5b8970d739f73d742d863d3e2ca Mon Sep 17 00:00:00 2001 From: Vincent Guittot Date: Tue, 4 Sep 2018 11:36:26 +0200 Subject: [PATCH 0794/1762] sched/fair: Fix scale_rt_capacity() for SMT Since commit: 523e979d3164 ("sched/core: Use PELT for scale_rt_capacity()") scale_rt_capacity() returns the remaining capacity and not a scale factor to apply on cpu_capacity_orig. arch_scale_cpu() is directly called by scale_rt_capacity() so we must take the sched_domain argument. Reported-by: Srikar Dronamraju Signed-off-by: Vincent Guittot Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Srikar Dronamraju Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Fixes: 523e979d3164 ("sched/core: Use PELT for scale_rt_capacity()") Link: http://lkml.kernel.org/r/20180904093626.GA23936@linaro.org Signed-off-by: Ingo Molnar --- kernel/sched/fair.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index c6b7d6daab20..f12d004be6a1 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -7488,10 +7488,10 @@ static inline int get_sd_load_idx(struct sched_domain *sd, return load_idx; } -static unsigned long scale_rt_capacity(int cpu) +static unsigned long scale_rt_capacity(struct sched_domain *sd, int cpu) { struct rq *rq = cpu_rq(cpu); - unsigned long max = arch_scale_cpu_capacity(NULL, cpu); + unsigned long max = arch_scale_cpu_capacity(sd, cpu); unsigned long used, free; unsigned long irq; @@ -7513,7 +7513,7 @@ static unsigned long scale_rt_capacity(int cpu) static void update_cpu_capacity(struct sched_domain *sd, int cpu) { - unsigned long capacity = scale_rt_capacity(cpu); + unsigned long capacity = scale_rt_capacity(sd, cpu); struct sched_group *sdg = sd->groups; cpu_rq(cpu)->cpu_capacity_orig = arch_scale_cpu_capacity(sd, cpu); From bb3485c8ace6475c269b1aa2da674490f455f412 Mon Sep 17 00:00:00 2001 From: Vincent Guittot Date: Fri, 7 Sep 2018 09:51:04 +0200 Subject: [PATCH 0795/1762] sched/fair: Fix load_balance redo for !imbalance It can happen that load_balance() finds a busiest group and then a busiest rq but the calculated imbalance is in fact 0. In such situation, detach_tasks() returns immediately and lets the flag LBF_ALL_PINNED set. The busiest CPU is then wrongly assumed to have pinned tasks and removed from the load balance mask. then, we redo a load balance without the busiest CPU. This creates wrong load balance situation and generates wrong task migration. If the calculated imbalance is 0, it's useless to try to find a busiest rq as no task will be migrated and we can return immediately. This situation can happen with heterogeneous system or smp system when RT tasks are decreasing the capacity of some CPUs. Signed-off-by: Vincent Guittot Signed-off-by: Peter Zijlstra (Intel) Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: dietmar.eggemann@arm.com Cc: jhugo@codeaurora.org Link: http://lkml.kernel.org/r/1536306664-29827-1-git-send-email-vincent.guittot@linaro.org Signed-off-by: Ingo Molnar --- kernel/sched/fair.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index f12d004be6a1..fc9a484ef82b 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -8275,7 +8275,7 @@ static struct sched_group *find_busiest_group(struct lb_env *env) force_balance: /* Looks like there is an imbalance. Compute it */ calculate_imbalance(env, &sds); - return sds.busiest; + return env->imbalance ? sds.busiest : NULL; out_balanced: env->imbalance = 0; From da260fe12330be8b003c2ab07a112704163ea675 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Fri, 7 Sep 2018 12:35:21 +0200 Subject: [PATCH 0796/1762] jump_label: Fix typo in warning message There's no 'allocatote' - use the next best thing: 'allocate' :-) Signed-off-by: Borislav Petkov Signed-off-by: Peter Zijlstra (Intel) Cc: Jason Baron Cc: Josh Poimboeuf Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Steven Rostedt (VMware) Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20180907103521.31344-1-bp@alien8.de Signed-off-by: Ingo Molnar --- kernel/jump_label.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/jump_label.c b/kernel/jump_label.c index 01ebdf1f9f40..2e62503bea0d 100644 --- a/kernel/jump_label.c +++ b/kernel/jump_label.c @@ -678,7 +678,7 @@ jump_label_module_notify(struct notifier_block *self, unsigned long val, case MODULE_STATE_COMING: ret = jump_label_add_module(mod); if (ret) { - WARN(1, "Failed to allocatote memory: jump_label may not work properly.\n"); + WARN(1, "Failed to allocate memory: jump_label may not work properly.\n"); jump_label_del_module(mod); } break; From 882a78a9f39f5535b209b4aa0a1741e35b8c67fb Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 3 Sep 2018 12:53:17 -0700 Subject: [PATCH 0797/1762] sched/fair: Fix kernel-doc notation warning Fix kernel-doc warning for missing 'flags' parameter description: ../kernel/sched/fair.c:3371: warning: Function parameter or member 'flags' not described in 'attach_entity_load_avg' Signed-off-by: Randy Dunlap Signed-off-by: Peter Zijlstra (Intel) Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Fixes: ea14b57e8a18 ("sched/cpufreq: Provide migration hint") Link: http://lkml.kernel.org/r/cdda0d42-880d-4229-a9f7-5899c977a063@infradead.org Signed-off-by: Ingo Molnar --- kernel/sched/fair.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index fc9a484ef82b..f808ddf2a868 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -3362,6 +3362,7 @@ update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq) * attach_entity_load_avg - attach this entity to its cfs_rq load avg * @cfs_rq: cfs_rq to attach to * @se: sched_entity to attach + * @flags: migration hints * * Must call update_cfs_rq_load_avg() before this, since we rely on * cfs_rq->avg.last_update_time being current. From f8ff6b2d4a51f08ff53360aab633ba6d4f2d54b6 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 5 Sep 2018 17:40:09 +0200 Subject: [PATCH 0798/1762] staging/fbtft: Update TODO and mailing lists Motivated by the ksummit-discuss discussion. Cc: Shuah Khan Cc: Thomas Petazzoni Cc: Mauro Carvalho Chehab Cc: linux-fbdev@vger.kernel.org Signed-off-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman --- MAINTAINERS | 2 ++ drivers/staging/fbtft/TODO | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index a726e22976bb..bb23faafecc4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5624,6 +5624,8 @@ F: lib/fault-inject.c FBTFT Framebuffer drivers M: Thomas Petazzoni +L: dri-devel@lists.freedesktop.org +L: linux-fbdev@vger.kernel.org S: Maintained F: drivers/staging/fbtft/ diff --git a/drivers/staging/fbtft/TODO b/drivers/staging/fbtft/TODO index 7e64c7e438f0..a9f4802bb6be 100644 --- a/drivers/staging/fbtft/TODO +++ b/drivers/staging/fbtft/TODO @@ -2,3 +2,7 @@ GPIO descriptor API in and look up GPIO lines from device tree, ACPI or board files, board files should use + +* convert all these over to drm_simple_display_pipe and submit for inclusion + into the DRM subsystem under drivers/gpu/drm - fbdev doesn't take any new + drivers anymore. From 2e558a8127de7b2ed3302f9adcf332ba3feeadb2 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 7 Sep 2018 22:40:33 +0300 Subject: [PATCH 0799/1762] ASoC: dapm: Fix a couple uninitialized ret variables Smatch complains that these variables could be uninitialized. The first one in snd_soc_dai_link_event() is probably a false positive, because probably we know the lists are not empty. I would normally ignore the warning, but GCC complains here as well so I just silenced the warning. The "ret" in snd_soc_dapm_new_dai() does need to be initialized or it leads to a bogus dereference in the caller. Fixes: 3bbf5d34fd4a ("ASoC: dapm: Move error handling to snd_soc_dapm_new_control_unlocked") Signed-off-by: Dan Carpenter Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index e496bc642c99..0dcdcc23dcfd 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -3938,8 +3938,10 @@ snd_soc_dapm_new_dai(struct snd_soc_card *card, struct snd_soc_pcm_runtime *rtd, dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template); - if (IS_ERR(w)) + if (IS_ERR(w)) { + ret = PTR_ERR(w); goto outfree_kcontrol_news; + } w->priv = rtd; From 0712e0288b7602efbde95d95bca4c651ccad01b8 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 10 Sep 2018 11:40:48 +0300 Subject: [PATCH 0800/1762] ASoC: qdsp6: q6asm-dai: clean up a return Smatch complains that if both "psubstream" and "csubstream" are NULL then "ret" is uninitialized. That probably can't happen, but it's cleaner to just return zero anyway so let's do that. Signed-off-by: Dan Carpenter Acked-by: Srinivas Kandagatla Signed-off-by: Mark Brown --- sound/soc/qcom/qdsp6/q6asm-dai.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/qcom/qdsp6/q6asm-dai.c b/sound/soc/qcom/qdsp6/q6asm-dai.c index 9db9a2944ef2..c75fab38905d 100644 --- a/sound/soc/qcom/qdsp6/q6asm-dai.c +++ b/sound/soc/qcom/qdsp6/q6asm-dai.c @@ -493,7 +493,7 @@ static int q6asm_dai_pcm_new(struct snd_soc_pcm_runtime *rtd) } } - return ret; + return 0; } static void q6asm_dai_pcm_free(struct snd_pcm *pcm) From 8c25741aaad8be6fbe51510e917c740e0059cf83 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Mon, 10 Sep 2018 11:43:29 +0200 Subject: [PATCH 0801/1762] ovl: fix oopses in ovl_fill_super() failure paths ovl_free_fs() dereferences ofs->workbasedir and ofs->upper_mnt in cases when those might not have been initialized yet. Fix the initialization order for these fields. Reported-by: syzbot+c75f181dc8429d2eb887@syzkaller.appspotmail.com Signed-off-by: Miklos Szeredi Cc: # v4.15 Fixes: 95e6d4177cb7 ("ovl: grab reference to workbasedir early") Fixes: a9075cdb467d ("ovl: factor out ovl_free_fs() helper") --- fs/overlayfs/super.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index 2e0fc93c2c06..30adc9d408a0 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -982,16 +982,6 @@ static int ovl_get_upper(struct ovl_fs *ofs, struct path *upperpath) if (err) goto out; - err = -EBUSY; - if (ovl_inuse_trylock(upperpath->dentry)) { - ofs->upperdir_locked = true; - } else if (ofs->config.index) { - pr_err("overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection.\n"); - goto out; - } else { - pr_warn("overlayfs: upperdir is in-use by another mount, accessing files from both mounts will result in undefined behavior.\n"); - } - upper_mnt = clone_private_mount(upperpath); err = PTR_ERR(upper_mnt); if (IS_ERR(upper_mnt)) { @@ -1002,6 +992,17 @@ static int ovl_get_upper(struct ovl_fs *ofs, struct path *upperpath) /* Don't inherit atime flags */ upper_mnt->mnt_flags &= ~(MNT_NOATIME | MNT_NODIRATIME | MNT_RELATIME); ofs->upper_mnt = upper_mnt; + + err = -EBUSY; + if (ovl_inuse_trylock(ofs->upper_mnt->mnt_root)) { + ofs->upperdir_locked = true; + } else if (ofs->config.index) { + pr_err("overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection.\n"); + goto out; + } else { + pr_warn("overlayfs: upperdir is in-use by another mount, accessing files from both mounts will result in undefined behavior.\n"); + } + err = 0; out: return err; @@ -1101,8 +1102,10 @@ static int ovl_get_workdir(struct ovl_fs *ofs, struct path *upperpath) goto out; } + ofs->workbasedir = dget(workpath.dentry); + err = -EBUSY; - if (ovl_inuse_trylock(workpath.dentry)) { + if (ovl_inuse_trylock(ofs->workbasedir)) { ofs->workdir_locked = true; } else if (ofs->config.index) { pr_err("overlayfs: workdir is in-use by another mount, mount with '-o index=off' to override exclusive workdir protection.\n"); @@ -1111,7 +1114,6 @@ static int ovl_get_workdir(struct ovl_fs *ofs, struct path *upperpath) pr_warn("overlayfs: workdir is in-use by another mount, accessing files from both mounts will result in undefined behavior.\n"); } - ofs->workbasedir = dget(workpath.dentry); err = ovl_make_workdir(ofs, &workpath); if (err) goto out; From 83e01228cb35823f7bd0e5a0584e24ed72a8af2b Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Mon, 13 Aug 2018 19:05:37 +0000 Subject: [PATCH 0802/1762] tools/lib/lockdep: Update Sasha Levin email to MSFT Signed-off-by: Sasha Levin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Sasha Levin Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20180813190527.16853-2-alexander.levin@microsoft.com Signed-off-by: Ingo Molnar --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index d870cb57c887..f999786cfa90 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8300,7 +8300,7 @@ F: include/linux/libata.h F: Documentation/devicetree/bindings/ata/ LIBLOCKDEP -M: Sasha Levin +M: Sasha Levin S: Maintained F: tools/lib/lockdep/ From 1064ea494bb00519c6e34f791dcf17436f70592d Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Mon, 13 Aug 2018 19:05:38 +0000 Subject: [PATCH 0803/1762] tools/lib/lockdep: Add empty nmi.h Required since: 88f1c87de11a8 ("locking/lockdep: Avoid triggering hardlockup from debug_show_all_locks()") Signed-off-by: Sasha Levin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Sasha Levin Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20180813190527.16853-3-alexander.levin@microsoft.com Signed-off-by: Ingo Molnar --- tools/include/linux/nmi.h | 0 1 file changed, 0 insertions(+), 0 deletions(-) create mode 100644 tools/include/linux/nmi.h diff --git a/tools/include/linux/nmi.h b/tools/include/linux/nmi.h new file mode 100644 index 000000000000..e69de29bb2d1 From 16214312df6d5aaa5324864d032ce565e97f8890 Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Mon, 13 Aug 2018 19:05:39 +0000 Subject: [PATCH 0804/1762] tools/lib/lockdep: Add dummy task_struct state member Commit: 8cc05c71ba5f ("locking/lockdep: Move sanity check to inside lockdep_print_held_locks()") added accesses to the task_struct's state member. Add dummy userspace declaration. Signed-off-by: Sasha Levin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Sasha Levin Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20180813190527.16853-4-alexander.levin@microsoft.com Signed-off-by: Ingo Molnar --- tools/include/linux/lockdep.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/include/linux/lockdep.h b/tools/include/linux/lockdep.h index 6b0c36a58fcb..e56997288f2b 100644 --- a/tools/include/linux/lockdep.h +++ b/tools/include/linux/lockdep.h @@ -30,9 +30,12 @@ struct task_struct { struct held_lock held_locks[MAX_LOCK_DEPTH]; gfp_t lockdep_reclaim_gfp; int pid; + int state; char comm[17]; }; +#define TASK_RUNNING 0 + extern struct task_struct *__curr(void); #define current (__curr()) From dc5591a03f1d6dae6b11cdf1d74b023f7ac0fdbf Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Tue, 28 Aug 2018 21:33:15 +0100 Subject: [PATCH 0805/1762] locking/lockdep: Delete unnecessary #include Commit: c3bc8fd637a9 ("tracing: Centralize preemptirq tracepoints and unify their usage") added the inclusion of . liblockdep doesn't have a stub version of that header so now fails to build. However, commit: bff1b208a5d1 ("tracing: Partial revert of "tracing: Centralize preemptirq tracepoints and unify their usage"") removed the use of functions declared in that header. So delete the #include. Signed-off-by: Ben Hutchings Cc: Joel Fernandes Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Sasha Levin Cc: Steven Rostedt Cc: Thomas Gleixner Cc: Will Deacon Fixes: bff1b208a5d1 ("tracing: Partial revert of "tracing: Centralize ...") Fixes: c3bc8fd637a9 ("tracing: Centralize preemptirq tracepoints ...") Link: http://lkml.kernel.org/r/20180828203315.GD18030@decadent.org.uk Signed-off-by: Ingo Molnar --- kernel/locking/lockdep.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index e406c5fdb41e..dd13f865ad40 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -55,7 +55,6 @@ #include "lockdep_internals.h" -#include #define CREATE_TRACE_POINTS #include From 0b405c65ad459f5f4d3db1672246172bd19d946d Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Fri, 24 Aug 2018 12:22:35 +0100 Subject: [PATCH 0806/1762] locking/ww_mutex: Fix spelling mistake "cylic" -> "cyclic" Trivial fix to spelling mistake in pr_err() error message Signed-off-by: Colin Ian King Acked-by: Will Deacon Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: kernel-janitors@vger.kernel.org Link: http://lkml.kernel.org/r/20180824112235.8842-1-colin.king@canonical.com Signed-off-by: Ingo Molnar --- kernel/locking/test-ww_mutex.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/locking/test-ww_mutex.c b/kernel/locking/test-ww_mutex.c index 5b915b370d5a..0be047dbd897 100644 --- a/kernel/locking/test-ww_mutex.c +++ b/kernel/locking/test-ww_mutex.c @@ -324,7 +324,7 @@ static int __test_cycle(unsigned int nthreads) if (!cycle->result) continue; - pr_err("cylic deadlock not resolved, ret[%d/%d] = %d\n", + pr_err("cyclic deadlock not resolved, ret[%d/%d] = %d\n", n, nthreads, cycle->result); ret = -EINVAL; break; From 02e184476eff848273826c1d6617bb37e5bcc7ad Mon Sep 17 00:00:00 2001 From: Yabin Cui Date: Thu, 23 Aug 2018 15:59:35 -0700 Subject: [PATCH 0807/1762] perf/core: Force USER_DS when recording user stack data Perf can record user stack data in response to a synchronous request, such as a tracepoint firing. If this happens under set_fs(KERNEL_DS), then we end up reading user stack data using __copy_from_user_inatomic() under set_fs(KERNEL_DS). I think this conflicts with the intention of using set_fs(KERNEL_DS). And it is explicitly forbidden by hardware on ARM64 when both CONFIG_ARM64_UAO and CONFIG_ARM64_PAN are used. So fix this by forcing USER_DS when recording user stack data. Signed-off-by: Yabin Cui Acked-by: Peter Zijlstra (Intel) Cc: Cc: Alexander Shishkin Cc: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Linus Torvalds Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Thomas Gleixner Fixes: 88b0193d9418 ("perf/callchain: Force USER_DS when invoking perf_callchain_user()") Link: http://lkml.kernel.org/r/20180823225935.27035-1-yabinc@google.com Signed-off-by: Ingo Molnar --- kernel/events/core.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/kernel/events/core.c b/kernel/events/core.c index abaed4f8bb7f..c80549bf82c6 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -5943,6 +5943,7 @@ perf_output_sample_ustack(struct perf_output_handle *handle, u64 dump_size, unsigned long sp; unsigned int rem; u64 dyn_size; + mm_segment_t fs; /* * We dump: @@ -5960,7 +5961,10 @@ perf_output_sample_ustack(struct perf_output_handle *handle, u64 dump_size, /* Data. */ sp = perf_user_stack_pointer(regs); + fs = get_fs(); + set_fs(USER_DS); rem = __output_copy_user(handle, (void *) sp, dump_size); + set_fs(fs); dyn_size = dump_size - rem; perf_output_skip(handle, rem); From 07e846bace717729fd20b5d99521a5f8c7d7a9cb Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 5 Aug 2018 20:34:05 -0700 Subject: [PATCH 0808/1762] x86/doc: Fix Documentation/x86/earlyprintk.txt Fix a few issues in Documentation/x86/earlyprintk.txt: - correct typos, punctuation, missing word, wrong word - change product name from Netchip to NetChip - expand where to add "earlyprintk=dbg" Signed-off-by: Randy Dunlap Cc: Eric W. Biederman Cc: Jason Wessel Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Yinghai Lu Cc: linux-doc@vger.kernel.org Cc: linux-usb@vger.kernel.org Link: http://lkml.kernel.org/r/d0c40ac3-7659-6374-dbda-23d3d2577f30@infradead.org Signed-off-by: Ingo Molnar --- Documentation/x86/earlyprintk.txt | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) diff --git a/Documentation/x86/earlyprintk.txt b/Documentation/x86/earlyprintk.txt index 688e3eeed21d..46933e06c972 100644 --- a/Documentation/x86/earlyprintk.txt +++ b/Documentation/x86/earlyprintk.txt @@ -35,25 +35,25 @@ and two USB cables, connected like this: ( If your system does not list a debug port capability then you probably won't be able to use the USB debug key. ) - b.) You also need a Netchip USB debug cable/key: + b.) You also need a NetChip USB debug cable/key: http://www.plxtech.com/products/NET2000/NET20DC/default.asp - This is a small blue plastic connector with two USB connections, + This is a small blue plastic connector with two USB connections; it draws power from its USB connections. c.) You need a second client/console system with a high speed USB 2.0 port. - d.) The Netchip device must be plugged directly into the physical + d.) The NetChip device must be plugged directly into the physical debug port on the "host/target" system. You cannot use a USB hub in between the physical debug port and the "host/target" system. The EHCI debug controller is bound to a specific physical USB - port and the Netchip device will only work as an early printk + port and the NetChip device will only work as an early printk device in this port. The EHCI host controllers are electrically wired such that the EHCI debug controller is hooked up to the - first physical and there is no way to change this via software. + first physical port and there is no way to change this via software. You can find the physical port through experimentation by trying each physical port on the system and rebooting. Or you can try and use lsusb or look at the kernel info messages emitted by the @@ -65,9 +65,9 @@ and two USB cables, connected like this: to the hardware vendor, because there is no reason not to wire this port into one of the physically accessible ports. - e.) It is also important to note, that many versions of the Netchip + e.) It is also important to note, that many versions of the NetChip device require the "client/console" system to be plugged into the - right and side of the device (with the product logo facing up and + right hand side of the device (with the product logo facing up and readable left to right). The reason being is that the 5 volt power supply is taken from only one side of the device and it must be the side that does not get rebooted. @@ -81,13 +81,18 @@ and two USB cables, connected like this: CONFIG_EARLY_PRINTK_DBGP=y And you need to add the boot command line: "earlyprintk=dbgp". + (If you are using Grub, append it to the 'kernel' line in - /etc/grub.conf) + /etc/grub.conf. If you are using Grub2 on a BIOS firmware system, + append it to the 'linux' line in /boot/grub2/grub.cfg. If you are + using Grub2 on an EFI firmware system, append it to the 'linux' + or 'linuxefi' line in /boot/grub2/grub.cfg or + /boot/efi/EFI//grub.cfg.) On systems with more than one EHCI debug controller you must specify the correct EHCI debug controller number. The ordering comes from the PCI bus enumeration of the EHCI controllers. The - default with no number argument is "0" the first EHCI debug + default with no number argument is "0" or the first EHCI debug controller. To use the second EHCI debug controller, you would use the command line: "earlyprintk=dbgp1" @@ -111,7 +116,7 @@ and two USB cables, connected like this: see the raw output. c.) On Nvidia Southbridge based systems: the kernel will try to probe - and find out which port has debug device connected. + and find out which port has a debug device connected. 3. Testing that it works fine: From 21a268069203cc72d1b2990bc68386516fabc274 Mon Sep 17 00:00:00 2001 From: Miquel Raynal Date: Fri, 7 Sep 2018 16:29:54 +0200 Subject: [PATCH 0809/1762] mtd: rawnand: marvell: prevent harmless warnings Since the addition of WARN_ON() in nand_subop_get_data/addr_len() helpers, this driver will produce harmless warnings (mostly at probe) just because it always calls the nand_subop_get_data_len() helper in the parsing function (even on non-data instructions, where this value is meaningless and unneeded). Fix these warnings by deriving the length only when it is relevant. Fixes: 760c435e0f85 ("mtd: rawnand: make subop helpers return unsigned values") Signed-off-by: Miquel Raynal Signed-off-by: Boris Brezillon --- drivers/mtd/nand/raw/marvell_nand.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/marvell_nand.c b/drivers/mtd/nand/raw/marvell_nand.c index 7af4d6213ee5..bc2ef5209783 100644 --- a/drivers/mtd/nand/raw/marvell_nand.c +++ b/drivers/mtd/nand/raw/marvell_nand.c @@ -1547,7 +1547,7 @@ static void marvell_nfc_parse_instructions(struct nand_chip *chip, for (op_id = 0; op_id < subop->ninstrs; op_id++) { unsigned int offset, naddrs; const u8 *addrs; - int len = nand_subop_get_data_len(subop, op_id); + int len; instr = &subop->instrs[op_id]; @@ -1593,6 +1593,7 @@ static void marvell_nfc_parse_instructions(struct nand_chip *chip, nfc_op->ndcb[0] |= NDCB0_CMD_XTYPE(XTYPE_MONOLITHIC_RW) | NDCB0_LEN_OVRD; + len = nand_subop_get_data_len(subop, op_id); nfc_op->ndcb[3] |= round_up(len, FIFO_DEPTH); } nfc_op->data_delay_ns = instr->delay_ns; @@ -1606,6 +1607,7 @@ static void marvell_nfc_parse_instructions(struct nand_chip *chip, nfc_op->ndcb[0] |= NDCB0_CMD_XTYPE(XTYPE_MONOLITHIC_RW) | NDCB0_LEN_OVRD; + len = nand_subop_get_data_len(subop, op_id); nfc_op->ndcb[3] |= round_up(len, FIFO_DEPTH); } nfc_op->data_delay_ns = instr->delay_ns; From e14614dc5153ad41f7d1e5b125e4cd155ca79aa2 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 7 Sep 2018 01:00:15 +0000 Subject: [PATCH 0810/1762] ASoC: atmel_ssc_dai: use devm_snd_soc_register_component() Now we have devm_snd_soc_register_component(). Let's use it instead of snd_soc_register_component(). Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/atmel/atmel_ssc_dai.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c index d3b69682d9c2..6291ec7f9dd6 100644 --- a/sound/soc/atmel/atmel_ssc_dai.c +++ b/sound/soc/atmel/atmel_ssc_dai.c @@ -1005,11 +1005,11 @@ static int asoc_ssc_init(struct device *dev) struct ssc_device *ssc = dev_get_drvdata(dev); int ret; - ret = snd_soc_register_component(dev, &atmel_ssc_component, + ret = devm_snd_soc_register_component(dev, &atmel_ssc_component, &atmel_ssc_dai, 1); if (ret) { dev_err(dev, "Could not register DAI: %d\n", ret); - goto err; + return ret; } if (ssc->pdata->use_dma) @@ -1019,15 +1019,10 @@ static int asoc_ssc_init(struct device *dev) if (ret) { dev_err(dev, "Could not register PCM: %d\n", ret); - goto err_unregister_dai; + return ret; } return 0; - -err_unregister_dai: - snd_soc_unregister_component(dev); -err: - return ret; } static void asoc_ssc_exit(struct device *dev) @@ -1038,8 +1033,6 @@ static void asoc_ssc_exit(struct device *dev) atmel_pcm_dma_platform_unregister(dev); else atmel_pcm_pdc_platform_unregister(dev); - - snd_soc_unregister_component(dev); } /** From 570f75b93551a6d70ecbd0a7b6d962b4ca4722f0 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 7 Sep 2018 01:00:49 +0000 Subject: [PATCH 0811/1762] ASoC: bcm: use devm_snd_soc_register_component() Now we have devm_snd_soc_register_component(). Let's use it instead of snd_soc_register_component(). Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/bcm/cygnus-ssp.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/sound/soc/bcm/cygnus-ssp.c b/sound/soc/bcm/cygnus-ssp.c index b733f1446353..b7c358b48d8d 100644 --- a/sound/soc/bcm/cygnus-ssp.c +++ b/sound/soc/bcm/cygnus-ssp.c @@ -1334,7 +1334,7 @@ static int cygnus_ssp_probe(struct platform_device *pdev) cygaud->active_ports = 0; dev_dbg(dev, "Registering %d DAIs\n", active_port_count); - err = snd_soc_register_component(dev, &cygnus_ssp_component, + err = devm_snd_soc_register_component(dev, &cygnus_ssp_component, cygnus_ssp_dai, active_port_count); if (err) { dev_err(dev, "snd_soc_register_dai failed\n"); @@ -1345,32 +1345,27 @@ static int cygnus_ssp_probe(struct platform_device *pdev) if (cygaud->irq_num <= 0) { dev_err(dev, "platform_get_irq failed\n"); err = cygaud->irq_num; - goto err_irq; + return err; } err = audio_clk_init(pdev, cygaud); if (err) { dev_err(dev, "audio clock initialization failed\n"); - goto err_irq; + return err; } err = cygnus_soc_platform_register(dev, cygaud); if (err) { dev_err(dev, "platform reg error %d\n", err); - goto err_irq; + return err; } return 0; - -err_irq: - snd_soc_unregister_component(dev); - return err; } static int cygnus_ssp_remove(struct platform_device *pdev) { cygnus_soc_platform_unregister(&pdev->dev); - snd_soc_unregister_component(&pdev->dev); return 0; } From 10ccaa39d7628470a3de4aae9d2346a55cbee46e Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 7 Sep 2018 01:01:19 +0000 Subject: [PATCH 0812/1762] ASoC: hdac_hda: use devm_snd_soc_register_component() Now we have devm_snd_soc_register_component(). Let's use it instead of snd_soc_register_component(). Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/codecs/hdac_hda.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/sound/soc/codecs/hdac_hda.c b/sound/soc/codecs/hdac_hda.c index 8c25a1332fa7..2aaa83028e55 100644 --- a/sound/soc/codecs/hdac_hda.c +++ b/sound/soc/codecs/hdac_hda.c @@ -448,7 +448,7 @@ static int hdac_hda_dev_probe(struct hdac_device *hdev) return -ENOMEM; /* ASoC specific initialization */ - ret = snd_soc_register_component(&hdev->dev, + ret = devm_snd_soc_register_component(&hdev->dev, &hdac_hda_codec, hdac_hda_dais, ARRAY_SIZE(hdac_hda_dais)); if (ret < 0) { @@ -464,7 +464,6 @@ static int hdac_hda_dev_probe(struct hdac_device *hdev) static int hdac_hda_dev_remove(struct hdac_device *hdev) { - snd_soc_unregister_component(&hdev->dev); return 0; } From 4fe1984ebc086ee39dd57983a7fee84c96c954a7 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 7 Sep 2018 01:01:34 +0000 Subject: [PATCH 0813/1762] ASoC: rt5668: use devm_snd_soc_register_component() Now we have devm_snd_soc_register_component(). Let's use it instead of snd_soc_register_component(). Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/codecs/rt5668.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/sound/soc/codecs/rt5668.c b/sound/soc/codecs/rt5668.c index 3c19d03f2446..4412cd2910cd 100644 --- a/sound/soc/codecs/rt5668.c +++ b/sound/soc/codecs/rt5668.c @@ -2587,14 +2587,12 @@ static int rt5668_i2c_probe(struct i2c_client *i2c, } - return snd_soc_register_component(&i2c->dev, &soc_component_dev_rt5668, + return devm_snd_soc_register_component(&i2c->dev, &soc_component_dev_rt5668, rt5668_dai, ARRAY_SIZE(rt5668_dai)); } static int rt5668_i2c_remove(struct i2c_client *i2c) { - snd_soc_unregister_component(&i2c->dev); - return 0; } From 007ac42db9ff4c36e91d192353421c6209058e06 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 7 Sep 2018 01:01:50 +0000 Subject: [PATCH 0814/1762] ASoC: tscs454: use devm_snd_soc_register_component() Now we have devm_snd_soc_register_component(). Let's use it instead of snd_soc_register_component(). Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/codecs/tscs454.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/tscs454.c b/sound/soc/codecs/tscs454.c index ff85a0bf6170..93d84e5ae2d5 100644 --- a/sound/soc/codecs/tscs454.c +++ b/sound/soc/codecs/tscs454.c @@ -3459,7 +3459,7 @@ static int tscs454_i2c_probe(struct i2c_client *i2c, /* Sync pg sel reg with cache */ regmap_write(tscs454->regmap, R_PAGESEL, 0x00); - ret = snd_soc_register_component(&i2c->dev, &soc_component_dev_tscs454, + ret = devm_snd_soc_register_component(&i2c->dev, &soc_component_dev_tscs454, tscs454_dais, ARRAY_SIZE(tscs454_dais)); if (ret) { dev_err(&i2c->dev, "Failed to register component (%d)\n", ret); From bfacaa8c8956dd6076641043b7be848267a708eb Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 7 Sep 2018 01:02:38 +0000 Subject: [PATCH 0815/1762] ASoC: nuc900: use devm_snd_soc_register_component() Now we have devm_snd_soc_register_component(). Let's use it instead of snd_soc_register_component(). Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/nuc900/nuc900-ac97.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/sound/soc/nuc900/nuc900-ac97.c b/sound/soc/nuc900/nuc900-ac97.c index 81b09d740ed9..6384bb6dacfd 100644 --- a/sound/soc/nuc900/nuc900-ac97.c +++ b/sound/soc/nuc900/nuc900-ac97.c @@ -356,7 +356,7 @@ static int nuc900_ac97_drvprobe(struct platform_device *pdev) if (ret) goto out; - ret = snd_soc_register_component(&pdev->dev, &nuc900_ac97_component, + ret = devm_snd_soc_register_component(&pdev->dev, &nuc900_ac97_component, &nuc900_ac97_dai, 1); if (ret) goto out; @@ -373,8 +373,6 @@ out: static int nuc900_ac97_drvremove(struct platform_device *pdev) { - snd_soc_unregister_component(&pdev->dev); - nuc900_ac97_data = NULL; snd_soc_set_ac97_ops(NULL); From 642a722d3116fbd22e59ac027f81b5ecd285f17c Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 7 Sep 2018 01:02:54 +0000 Subject: [PATCH 0816/1762] ASoC: omap: use devm_snd_soc_register_component() Now we have devm_snd_soc_register_component(). Let's use it instead of snd_soc_register_component(). Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/omap/omap-hdmi-audio.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/sound/soc/omap/omap-hdmi-audio.c b/sound/soc/omap/omap-hdmi-audio.c index 8a99a8837dc9..673a9eb153b2 100644 --- a/sound/soc/omap/omap-hdmi-audio.c +++ b/sound/soc/omap/omap-hdmi-audio.c @@ -348,7 +348,7 @@ static int omap_hdmi_audio_probe(struct platform_device *pdev) default: return -EINVAL; } - ret = snd_soc_register_component(ad->dssdev, &omap_hdmi_component, + ret = devm_snd_soc_register_component(ad->dssdev, &omap_hdmi_component, dai_drv, 1); if (ret) return ret; @@ -383,7 +383,6 @@ static int omap_hdmi_audio_probe(struct platform_device *pdev) ret = snd_soc_register_card(card); if (ret) { dev_err(dev, "snd_soc_register_card failed (%d)\n", ret); - snd_soc_unregister_component(ad->dssdev); return ret; } @@ -400,7 +399,6 @@ static int omap_hdmi_audio_remove(struct platform_device *pdev) struct hdmi_audio_data *ad = platform_get_drvdata(pdev); snd_soc_unregister_card(ad->card); - snd_soc_unregister_component(ad->dssdev); return 0; } From afa88ee37b1383490df003ea005d1d9bc8afa8a8 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 7 Sep 2018 01:03:25 +0000 Subject: [PATCH 0817/1762] ASoC: sh: use devm_snd_soc_register_component() Now we have devm_snd_soc_register_component(). Let's use it instead of snd_soc_register_component(). Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/sh/hac.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/sound/soc/sh/hac.c b/sound/soc/sh/hac.c index c2b496398e6b..17622ceb98c0 100644 --- a/sound/soc/sh/hac.c +++ b/sound/soc/sh/hac.c @@ -319,13 +319,12 @@ static int hac_soc_platform_probe(struct platform_device *pdev) if (ret != 0) return ret; - return snd_soc_register_component(&pdev->dev, &sh4_hac_component, + return devm_snd_soc_register_component(&pdev->dev, &sh4_hac_component, sh4_hac_dai, ARRAY_SIZE(sh4_hac_dai)); } static int hac_soc_platform_remove(struct platform_device *pdev) { - snd_soc_unregister_component(&pdev->dev); snd_soc_set_ac97_ops(NULL); return 0; } From fb77436a444e9836e6b1b0a457bc9c09cdce22f6 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 7 Sep 2018 01:03:53 +0000 Subject: [PATCH 0818/1762] ASoC: txx9: use devm_snd_soc_register_component() Now we have devm_snd_soc_register_component(). Let's use it instead of snd_soc_register_component(). Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/txx9/txx9aclc-ac97.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/sound/soc/txx9/txx9aclc-ac97.c b/sound/soc/txx9/txx9aclc-ac97.c index e2ad00e3cae1..1cfca698ae4b 100644 --- a/sound/soc/txx9/txx9aclc-ac97.c +++ b/sound/soc/txx9/txx9aclc-ac97.c @@ -208,13 +208,12 @@ static int txx9aclc_ac97_dev_probe(struct platform_device *pdev) if (err < 0) return err; - return snd_soc_register_component(&pdev->dev, &txx9aclc_ac97_component, + return devm_snd_soc_register_component(&pdev->dev, &txx9aclc_ac97_component, &txx9aclc_ac97_dai, 1); } static int txx9aclc_ac97_dev_remove(struct platform_device *pdev) { - snd_soc_unregister_component(&pdev->dev); snd_soc_set_ac97_ops(NULL); return 0; } From 18fbe800e6066050ab6ae7751708da04975cdc22 Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Sat, 8 Sep 2018 16:36:19 +0800 Subject: [PATCH 0819/1762] ASoC: q6core: Use kmemdup to replace kzalloc + memcpy kmemdup has implemented the function that kzalloc() + memcpy() will do. and we prefer to use the kmemdup rather than the open coded implementation. Signed-off-by: zhong jiang Signed-off-by: Mark Brown --- sound/soc/qcom/qdsp6/q6core.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/sound/soc/qcom/qdsp6/q6core.c b/sound/soc/qcom/qdsp6/q6core.c index 06f03a5fe9bd..ca1be7305524 100644 --- a/sound/soc/qcom/qdsp6/q6core.c +++ b/sound/soc/qcom/qdsp6/q6core.c @@ -105,12 +105,10 @@ static int q6core_callback(struct apr_device *adev, struct apr_resp_pkt *data) bytes = sizeof(*fwk) + fwk->num_services * sizeof(fwk->svc_api_info[0]); - core->fwk_version = kzalloc(bytes, GFP_ATOMIC); + core->fwk_version = kmemdup(data->payload, bytes, GFP_ATOMIC); if (!core->fwk_version) return -ENOMEM; - memcpy(core->fwk_version, data->payload, bytes); - core->fwk_version_supported = true; core->resp_received = true; @@ -124,12 +122,10 @@ static int q6core_callback(struct apr_device *adev, struct apr_resp_pkt *data) len = sizeof(*v) + v->num_services * sizeof(v->svc_api_info[0]); - core->svc_version = kzalloc(len, GFP_ATOMIC); + core->svc_version = kmemdup(data->payload, len, GFP_ATOMIC); if (!core->svc_version) return -ENOMEM; - memcpy(core->svc_version, data->payload, len); - core->get_version_supported = true; core->resp_received = true; From ca92cc4636fdedf0d7ee88a5e50cd2b85c246a3b Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Sat, 8 Sep 2018 16:36:20 +0800 Subject: [PATCH 0820/1762] ASoC: skl-topology: Use kmemdup to replace kzalloc + memcpy kmemdup has implemented the function that kzalloc() + memcpy() will do. and we prefer to kmemdup rather than the open coded implementation. Signed-off-by: zhong jiang Signed-off-by: Mark Brown --- sound/soc/intel/skylake/skl-topology.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c index 2620d77729c5..52a9915da0f5 100644 --- a/sound/soc/intel/skylake/skl-topology.c +++ b/sound/soc/intel/skylake/skl-topology.c @@ -898,11 +898,10 @@ static int skl_tplg_set_module_bind_params(struct snd_soc_dapm_widget *w, bc = (struct skl_algo_data *)sb->dobj.private; if (bc->set_params == SKL_PARAM_BIND) { - params = kzalloc(bc->max, GFP_KERNEL); + params = kmemdup(bc->params, bc->max, GFP_KERNEL); if (!params) return -ENOMEM; - memcpy(params, bc->params, bc->max); skl_fill_sink_instance_id(ctx, params, bc->max, mconfig); From e36a1d0d249aa09f94d551cadf043a7f9f7fae00 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Mon, 10 Sep 2018 15:28:39 +0100 Subject: [PATCH 0821/1762] ASoC: dapm: Add missing return value check for snd_soc_dapm_new_dai snd_soc_dapm_new_dai may return an error pointer and currently this isn't checked for in dapm_connect_dai_link_widgets. Add code to check the return value and not add routes in that case. Fixes: 778ff5bb8689 ("ASoC: dapm: Move connection of CODEC to CODEC DAIs") Reported-by: Dan Carpenter Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 0dcdcc23dcfd..43983c69f6aa 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -4087,6 +4087,13 @@ static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, playback = snd_soc_dapm_new_dai(card, rtd, playback_cpu, codec); + if (IS_ERR(playback)) { + dev_err(rtd->dev, + "ASoC: Failed to create DAI %s: %ld\n", + codec_dai->name, + PTR_ERR(playback)); + continue; + } snd_soc_dapm_add_path(&card->dapm, playback_cpu, playback, NULL, NULL); @@ -4099,7 +4106,9 @@ static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, snd_soc_dapm_add_path(&card->dapm, playback, codec, NULL, NULL); } + } + for_each_rtd_codec_dai(rtd, i, codec_dai) { /* connect BE DAI capture if widgets are valid */ codec = codec_dai->capture_widget; @@ -4108,6 +4117,13 @@ static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, capture = snd_soc_dapm_new_dai(card, rtd, codec, capture_cpu); + if (IS_ERR(capture)) { + dev_err(rtd->dev, + "ASoC: Failed to create DAI %s: %ld\n", + codec_dai->name, + PTR_ERR(capture)); + continue; + } snd_soc_dapm_add_path(&card->dapm, capture, capture_cpu, NULL, NULL); From a318c2432218d3cd189ec8228b8a795666899c2a Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Fri, 31 Aug 2018 14:34:02 +0200 Subject: [PATCH 0822/1762] mfd: da9063: Fix DT probing with constraints Commit 1c892e38ce59 ("regulator: da9063: Handle less LDOs on DA9063L") reordered the da9063_regulator_info[] array, but not the DA9063_ID_* regulator ids and not the da9063_matches[] array, because ids are used as indices in the array initializer. This mismatch between regulator id and da9063_regulator_info[] array index causes the driver probe to fail because constraints from DT are not applied to the correct regulator: da9063 0-0058: Device detected (chip-ID: 0x61, var-ID: 0x50) DA9063_BMEM: Bringing 900000uV into 3300000-3300000uV DA9063_LDO9: Bringing 3300000uV into 2500000-2500000uV DA9063_LDO1: Bringing 900000uV into 3300000-3300000uV DA9063_LDO1: failed to apply 3300000-3300000uV constraint(-22) This patch reorders the DA9063_ID_* as apparently intended, and with them the entries in the da90630_matches[] array. Fixes: 1c892e38ce59 ("regulator: da9063: Handle less LDOs on DA9063L") Signed-off-by: Philipp Zabel Reviewed-by: Marek Vasut Reviewed-by: Geert Uytterhoeven Signed-off-by: Lee Jones --- include/linux/mfd/da9063/pdata.h | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/include/linux/mfd/da9063/pdata.h b/include/linux/mfd/da9063/pdata.h index 8a125701ef7b..50bed4f89c1a 100644 --- a/include/linux/mfd/da9063/pdata.h +++ b/include/linux/mfd/da9063/pdata.h @@ -21,7 +21,7 @@ /* * Regulator configuration */ -/* DA9063 regulator IDs */ +/* DA9063 and DA9063L regulator IDs */ enum { /* BUCKs */ DA9063_ID_BCORE1, @@ -37,18 +37,20 @@ enum { DA9063_ID_BMEM_BIO_MERGED, /* When two BUCKs are merged, they cannot be reused separately */ - /* LDOs */ - DA9063_ID_LDO1, - DA9063_ID_LDO2, + /* LDOs on both DA9063 and DA9063L */ DA9063_ID_LDO3, - DA9063_ID_LDO4, - DA9063_ID_LDO5, - DA9063_ID_LDO6, DA9063_ID_LDO7, DA9063_ID_LDO8, DA9063_ID_LDO9, - DA9063_ID_LDO10, DA9063_ID_LDO11, + + /* DA9063-only LDOs */ + DA9063_ID_LDO1, + DA9063_ID_LDO2, + DA9063_ID_LDO4, + DA9063_ID_LDO5, + DA9063_ID_LDO6, + DA9063_ID_LDO10, }; /* Regulators platform data */ From 6e7f6b82c60afb46ff71c2127421c66207966d6d Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Sun, 9 Sep 2018 15:39:14 +1000 Subject: [PATCH 0823/1762] tty: hvc: hvc_poll() fix read loop hang Commit ec97eaad1383 ("tty: hvc: hvc_poll() break hv read loop") causes the virtio console to hang at times (e.g., if you paste a bunch of characters to it. The reason is that get_chars must return 0 before we can be sure the driver will kick or poll input again, but this change only scheduled a poll if get_chars had returned a full count. Change this to poll on any > 0 count. Reported-by: Matteo Croce Reported-by: Jason Gunthorpe Tested-by: Matteo Croce Tested-by: Jason Gunthorpe Tested-by: Leon Romanovsky Signed-off-by: Nicholas Piggin Signed-off-by: Greg Kroah-Hartman --- drivers/tty/hvc/hvc_console.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c index 5414c4a87bea..c917749708d2 100644 --- a/drivers/tty/hvc/hvc_console.c +++ b/drivers/tty/hvc/hvc_console.c @@ -717,10 +717,13 @@ static int __hvc_poll(struct hvc_struct *hp, bool may_sleep) #endif /* CONFIG_MAGIC_SYSRQ */ tty_insert_flip_char(&hp->port, buf[i], 0); } - if (n == count) - poll_mask |= HVC_POLL_READ; read_total = n; + /* + * Latency break, schedule another poll immediately. + */ + poll_mask |= HVC_POLL_READ; + out: /* Wakeup write queue if necessary */ if (hp->do_wakeup) { From 68b2fc714fb1e08385f9c810d84f06affd007350 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Sun, 9 Sep 2018 15:39:15 +1000 Subject: [PATCH 0824/1762] tty: hvc: hvc_poll() fix read loop batching Commit ec97eaad1383 ("tty: hvc: hvc_poll() break hv read loop") removes get_chars batching entirely, which slows down large console operations like paste -- virtio console "feels worse than a 9600 baud serial line," reports Matteo. This adds back batching in a more latency friendly way. If the caller can sleep then we try to fill the entire flip buffer, releasing the lock and scheduling between each iteration. If it can not sleep, then batches are limited to 128 bytes. Matteo confirms this fixes the performance problem. Latency testing the powerpc OPAL console with OpenBMC UART with a large paste shows about 0.25ms latency, which seems reasonable. 10ms latencies were typical for this case before the latency breaking work, so we still see most of the benefit. kopald-1204 0d.h. 5us : hvc_poll <-hvc_handle_interrupt kopald-1204 0d.h. 5us : __hvc_poll <-hvc_handle_interrupt kopald-1204 0d.h. 5us : _raw_spin_lock_irqsave <-__hvc_poll kopald-1204 0d.h. 5us : tty_port_tty_get <-__hvc_poll kopald-1204 0d.h. 6us : _raw_spin_lock_irqsave <-tty_port_tty_get kopald-1204 0d.h. 6us : _raw_spin_unlock_irqrestore <-tty_port_tty_get kopald-1204 0d.h. 6us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 7us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 7us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 36us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 36us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 36us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 65us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 65us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 66us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 94us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 95us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 95us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 124us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 124us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 125us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 154us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 154us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 154us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 183us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 184us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 184us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 213us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 213us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 213us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 242us : _raw_spin_unlock_irqrestore <-__hvc_poll kopald-1204 0d.h. 242us : tty_flip_buffer_push <-__hvc_poll kopald-1204 0d.h. 243us : queue_work_on <-tty_flip_buffer_push kopald-1204 0d.h. 243us : tty_kref_put <-__hvc_poll kopald-1204 0d.h. 243us : hvc_kick <-hvc_handle_interrupt kopald-1204 0d.h. 243us : wake_up_process <-hvc_kick kopald-1204 0d.h. 244us : try_to_wake_up <-hvc_kick kopald-1204 0d.h. 244us : _raw_spin_lock_irqsave <-try_to_wake_up kopald-1204 0d.h. 244us : _raw_spin_unlock_irqrestore <-try_to_wake_up Reported-by: Matteo Croce Tested-by: Matteo Croce Tested-by: Jason Gunthorpe Tested-by: Leon Romanovsky Signed-off-by: Nicholas Piggin Signed-off-by: Greg Kroah-Hartman --- drivers/tty/hvc/hvc_console.c | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c index c917749708d2..bacf9b73ec98 100644 --- a/drivers/tty/hvc/hvc_console.c +++ b/drivers/tty/hvc/hvc_console.c @@ -623,6 +623,15 @@ static int hvc_chars_in_buffer(struct tty_struct *tty) #define MAX_TIMEOUT (2000) static u32 timeout = MIN_TIMEOUT; +/* + * Maximum number of bytes to get from the console driver if hvc_poll is + * called from driver (and can't sleep). Any more than this and we break + * and start polling with khvcd. This value was derived from from an OpenBMC + * console with the OPAL driver that results in about 0.25ms interrupts off + * latency. + */ +#define HVC_ATOMIC_READ_MAX 128 + #define HVC_POLL_READ 0x00000001 #define HVC_POLL_WRITE 0x00000002 @@ -669,8 +678,8 @@ static int __hvc_poll(struct hvc_struct *hp, bool may_sleep) if (!hp->irq_requested) poll_mask |= HVC_POLL_READ; + read_again: /* Read data if any */ - count = tty_buffer_request_room(&hp->port, N_INBUF); /* If flip is full, just reschedule a later read */ @@ -717,7 +726,18 @@ static int __hvc_poll(struct hvc_struct *hp, bool may_sleep) #endif /* CONFIG_MAGIC_SYSRQ */ tty_insert_flip_char(&hp->port, buf[i], 0); } - read_total = n; + read_total += n; + + if (may_sleep) { + /* Keep going until the flip is full */ + spin_unlock_irqrestore(&hp->lock, flags); + cond_resched(); + spin_lock_irqsave(&hp->lock, flags); + goto read_again; + } else if (read_total < HVC_ATOMIC_READ_MAX) { + /* Break and defer if it's a large read in atomic */ + goto read_again; + } /* * Latency break, schedule another poll immediately. From 7f2bf7840b74a160f908db83bc8829f8de10629b Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Sun, 9 Sep 2018 15:39:16 +1000 Subject: [PATCH 0825/1762] tty: hvc: hvc_write() fix break condition Commit 550ddadcc758 ("tty: hvc: hvc_write() may sleep") broke the termination condition in case the driver stops accepting characters. This can result in unnecessary polling of the busy driver. Restore it by testing the hvc_push return code. Tested-by: Matteo Croce Tested-by: Jason Gunthorpe Tested-by: Leon Romanovsky Signed-off-by: Nicholas Piggin Signed-off-by: Greg Kroah-Hartman --- drivers/tty/hvc/hvc_console.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c index bacf9b73ec98..27284a2dcd2b 100644 --- a/drivers/tty/hvc/hvc_console.c +++ b/drivers/tty/hvc/hvc_console.c @@ -522,6 +522,8 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count return -EIO; while (count > 0) { + int ret = 0; + spin_lock_irqsave(&hp->lock, flags); rsize = hp->outbuf_size - hp->n_outbuf; @@ -537,10 +539,13 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count } if (hp->n_outbuf > 0) - hvc_push(hp); + ret = hvc_push(hp); spin_unlock_irqrestore(&hp->lock, flags); + if (!ret) + break; + if (count) { if (hp->n_outbuf > 0) hvc_flush(hp); From 383584157786e09fed6d9e87b2cd8784b6709216 Mon Sep 17 00:00:00 2001 From: "Ahmed S. Darwish" Date: Mon, 10 Sep 2018 15:28:37 +0000 Subject: [PATCH 0826/1762] staging: gasket: TODO: re-implement using UIO The gasket in-kernel framework, recently introduced under staging, re-implements what is already long-time provided by the UIO subsystem, with extra PCI BAR remapping and MSI conveniences. Before moving it out of staging, make sure we add the new bits to the UIO framework instead, then transform its signle client, the Apex driver, to a proper UIO driver (uio_driver.h). Link: https://lkml.kernel.org/r/20180828103817.GB1397@do-kernel Signed-off-by: Ahmed S. Darwish Signed-off-by: Greg Kroah-Hartman --- drivers/staging/gasket/TODO | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/staging/gasket/TODO b/drivers/staging/gasket/TODO index 6ff8e01b04cc..5b1865f8af2d 100644 --- a/drivers/staging/gasket/TODO +++ b/drivers/staging/gasket/TODO @@ -1,9 +1,22 @@ This is a list of things that need to be done to get this driver out of the staging directory. + +- Implement the gasket framework's functionality through UIO instead of + introducing a new user-space drivers framework that is quite similar. + + UIO provides the necessary bits to implement user-space drivers. Meanwhile + the gasket APIs adds some extra conveniences like PCI BAR mapping, and + MSI interrupts. Add these features to the UIO subsystem, then re-implement + the Apex driver as a basic UIO driver instead (include/linux/uio_driver.h) + - Document sysfs files with Documentation/ABI/ entries. + - Use misc interface instead of major number for driver version description. + - Add descriptions of module_param's + - apex_get_status() should actually check status. + - "drivers" should never be dealing with "raw" sysfs calls or mess around with kobjects at all. The driver core should handle all of this for you automaically. There should not be a need for raw attribute macros. From 00a99339f0a30b593d06f31499c4bbd965979567 Mon Sep 17 00:00:00 2001 From: Vineet Gupta Date: Fri, 7 Sep 2018 15:13:10 -0700 Subject: [PATCH 0827/1762] ARCv2: build: use mcpu=hs38 iso generic mcpu=archs helps gcc with better instruction selections such as 64-bit multiply MPYD before ------ 82c34b58 : 82c34b58: ld r2,[0x83068d00] 82c34b60: add_s r2,r2,0x7530 82c34b66: mov_s r0,0x989680 82c34b6c: mpymu r5,r2,r0 82c34b70: mpy r4,r2,r0 82c34b74: mov_s r0,r4 82c34b76: j_s.d [blink] 82c34b78: mov_s r1,r5 82c34b7a: nop_s after ------ 82c34b7c : 82c34b7c: ld r0,[0x83064d00] 82c34b84: add_s r0,r0,0x7530 82c34b8a: mpydu r0,r0,0x989680 82c34b92: j_s [blink] Signed-off-by: Vineet Gupta --- arch/arc/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arc/Makefile b/arch/arc/Makefile index 99cce77ab98f..dcc0f0cb0ca5 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -18,7 +18,7 @@ KBUILD_DEFCONFIG := nsim_700_defconfig cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__ cflags-$(CONFIG_ISA_ARCOMPACT) += -mA7 -cflags-$(CONFIG_ISA_ARCV2) += -mcpu=archs +cflags-$(CONFIG_ISA_ARCV2) += -mcpu=hs38 is_700 = $(shell $(CC) -dM -E - < /dev/null | grep -q "ARC700" && echo 1 || echo 0) From 3ebb17446b954b7d39264564ec3f7522d502e785 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 7 Sep 2018 02:02:45 +0000 Subject: [PATCH 0828/1762] ethernet: renesas: convert to SPDX identifiers This patch updates license to use SPDX-License-Identifier instead of verbose license text. Signed-off-by: Kuninori Morimoto Signed-off-by: David S. Miller --- drivers/net/ethernet/renesas/Kconfig | 1 + drivers/net/ethernet/renesas/Makefile | 1 + drivers/net/ethernet/renesas/ravb_ptp.c | 6 +----- 3 files changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/renesas/Kconfig b/drivers/net/ethernet/renesas/Kconfig index f3f7477043ce..bb0ebdfd4459 100644 --- a/drivers/net/ethernet/renesas/Kconfig +++ b/drivers/net/ethernet/renesas/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # Renesas device configuration # diff --git a/drivers/net/ethernet/renesas/Makefile b/drivers/net/ethernet/renesas/Makefile index a05102a7df02..f21ab8c02af0 100644 --- a/drivers/net/ethernet/renesas/Makefile +++ b/drivers/net/ethernet/renesas/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # Makefile for the Renesas device drivers. # diff --git a/drivers/net/ethernet/renesas/ravb_ptp.c b/drivers/net/ethernet/renesas/ravb_ptp.c index eede70ec37f8..0721b5c35d91 100644 --- a/drivers/net/ethernet/renesas/ravb_ptp.c +++ b/drivers/net/ethernet/renesas/ravb_ptp.c @@ -1,13 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* PTP 1588 clock using the Renesas Ethernet AVB * * Copyright (C) 2013-2015 Renesas Electronics Corporation * Copyright (C) 2015 Renesas Solutions Corp. * Copyright (C) 2015-2016 Cogent Embedded, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #include "ravb.h" From 92a6803149465e2339f8f7f8f6415d75be80073d Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Wed, 5 Sep 2018 13:00:05 +0300 Subject: [PATCH 0829/1762] drm/i915/bdw: Increase IPS disable timeout to 100ms MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During IPS disabling the current 42ms timeout value leads to occasional timeouts, increase it to 100ms which seems to get rid of the problem. References: https://bugs.freedesktop.org/show_bug.cgi?id=107494 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107562 Reported-by: Diego Viola Tested-by: Diego Viola Cc: Diego Viola Cc: Signed-off-by: Imre Deak Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20180905100005.7663-1-imre.deak@intel.com (cherry picked from commit acb3ef0ee40ea657280a4a11d9f60eb2937c0dca) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/intel_display.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 4a3c8ee9a973..d2951096bca0 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5079,10 +5079,14 @@ void hsw_disable_ips(const struct intel_crtc_state *crtc_state) mutex_lock(&dev_priv->pcu_lock); WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0)); mutex_unlock(&dev_priv->pcu_lock); - /* wait for pcode to finish disabling IPS, which may take up to 42ms */ + /* + * Wait for PCODE to finish disabling IPS. The BSpec specified + * 42ms timeout value leads to occasional timeouts so use 100ms + * instead. + */ if (intel_wait_for_register(dev_priv, IPS_CTL, IPS_ENABLE, 0, - 42)) + 100)) DRM_ERROR("Timed out waiting for IPS disable\n"); } else { I915_WRITE(IPS_CTL, 0); From 8dcb0c90c691de5b79608d04ec7941ef9b3fee9c Mon Sep 17 00:00:00 2001 From: Akshu Agrawal Date: Mon, 10 Sep 2018 22:50:27 +0530 Subject: [PATCH 0830/1762] ASoC: AMD: Fix simultaneous playback and capture on different channel If capture and playback are started on different channel (I2S/BT) there is a possibilty that channel information passed from machine driver is overwritten before the configuration is done in dma driver. Example: 113.597588: cz_max_startup: ---playback sets BT channel 113.597694: cz_dmic1_startup: ---capture sets I2S channel 113.597979: acp_dma_hw_params: ---configures capture for I2S channel 113.598114: acp_dma_hw_params: ---configures playback for I2S channel This is fixed by having 2 separate instance for playback and capture. Signed-off-by: Akshu Agrawal Signed-off-by: Mark Brown --- sound/soc/amd/acp-da7219-max98357a.c | 40 +++++++++++++++++++++++----- sound/soc/amd/acp-pcm-dma.c | 8 ++++-- sound/soc/amd/acp.h | 3 ++- 3 files changed, 41 insertions(+), 10 deletions(-) diff --git a/sound/soc/amd/acp-da7219-max98357a.c b/sound/soc/amd/acp-da7219-max98357a.c index 3879cccbd2c0..717a017f0db6 100644 --- a/sound/soc/amd/acp-da7219-max98357a.c +++ b/sound/soc/amd/acp-da7219-max98357a.c @@ -133,7 +133,7 @@ static const struct snd_pcm_hw_constraint_list constraints_channels = { .mask = 0, }; -static int cz_da7219_startup(struct snd_pcm_substream *substream) +static int cz_da7219_play_startup(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *rtd = substream->private_data; @@ -150,7 +150,28 @@ static int cz_da7219_startup(struct snd_pcm_substream *substream) snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); - machine->i2s_instance = I2S_SP_INSTANCE; + machine->play_i2s_instance = I2S_SP_INSTANCE; + return da7219_clk_enable(substream); +} + +static int cz_da7219_cap_startup(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + struct acp_platform_info *machine = snd_soc_card_get_drvdata(card); + + /* + * On this platform for PCM device we support stereo + */ + + runtime->hw.channels_max = DUAL_CHANNEL; + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_channels); + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + &constraints_rates); + + machine->cap_i2s_instance = I2S_SP_INSTANCE; machine->capture_channel = CAP_CHANNEL1; return da7219_clk_enable(substream); } @@ -177,7 +198,7 @@ static int cz_max_startup(struct snd_pcm_substream *substream) snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); - machine->i2s_instance = I2S_BT_INSTANCE; + machine->play_i2s_instance = I2S_BT_INSTANCE; return da7219_clk_enable(substream); } @@ -203,7 +224,7 @@ static int cz_dmic0_startup(struct snd_pcm_substream *substream) snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); - machine->i2s_instance = I2S_BT_INSTANCE; + machine->cap_i2s_instance = I2S_BT_INSTANCE; return da7219_clk_enable(substream); } @@ -224,7 +245,7 @@ static int cz_dmic1_startup(struct snd_pcm_substream *substream) snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); - machine->i2s_instance = I2S_SP_INSTANCE; + machine->cap_i2s_instance = I2S_SP_INSTANCE; machine->capture_channel = CAP_CHANNEL0; return da7219_clk_enable(substream); } @@ -234,8 +255,13 @@ static void cz_dmic_shutdown(struct snd_pcm_substream *substream) da7219_clk_disable(); } +static const struct snd_soc_ops cz_da7219_play_ops = { + .startup = cz_da7219_play_startup, + .shutdown = cz_da7219_shutdown, +}; + static const struct snd_soc_ops cz_da7219_cap_ops = { - .startup = cz_da7219_startup, + .startup = cz_da7219_cap_startup, .shutdown = cz_da7219_shutdown, }; @@ -266,7 +292,7 @@ static struct snd_soc_dai_link cz_dai_7219_98357[] = { | SND_SOC_DAIFMT_CBM_CFM, .init = cz_da7219_init, .dpcm_playback = 1, - .ops = &cz_da7219_cap_ops, + .ops = &cz_da7219_play_ops, }, { .name = "amd-da7219-cap", diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c index e359938e3d7e..8f3bc6e37f26 100644 --- a/sound/soc/amd/acp-pcm-dma.c +++ b/sound/soc/amd/acp-pcm-dma.c @@ -846,8 +846,12 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream, return -EINVAL; if (pinfo) { - rtd->i2s_instance = pinfo->i2s_instance; - rtd->capture_channel = pinfo->capture_channel; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + rtd->i2s_instance = pinfo->play_i2s_instance; + } else { + rtd->i2s_instance = pinfo->cap_i2s_instance; + rtd->capture_channel = pinfo->capture_channel; + } } if (adata->asic_type == CHIP_STONEY) { val = acp_reg_read(adata->acp_mmio, diff --git a/sound/soc/amd/acp.h b/sound/soc/amd/acp.h index be3963e8f4fa..dbbb1a85638d 100644 --- a/sound/soc/amd/acp.h +++ b/sound/soc/amd/acp.h @@ -158,7 +158,8 @@ struct audio_drv_data { * and dma driver */ struct acp_platform_info { - u16 i2s_instance; + u16 play_i2s_instance; + u16 cap_i2s_instance; u16 capture_channel; }; From 1c8bc7b3de5e76cb89aacdc7be1475a028af505f Mon Sep 17 00:00:00 2001 From: Robert Jarzmik Date: Sat, 25 Aug 2018 10:46:18 +0200 Subject: [PATCH 0831/1762] ASoC: pxa: switch to new ac97 bus support Switch to the new ac97 bus support in sound/ac97 instead of the legacy snd_ac97 one. Signed-off-by: Robert Jarzmik Signed-off-by: Mark Brown --- sound/arm/Kconfig | 1 - sound/soc/pxa/Kconfig | 5 ++-- sound/soc/pxa/pxa2xx-ac97.c | 48 +++++++++++++++++++------------------ 3 files changed, 27 insertions(+), 27 deletions(-) diff --git a/sound/arm/Kconfig b/sound/arm/Kconfig index 5fbd47a9177e..28867732a318 100644 --- a/sound/arm/Kconfig +++ b/sound/arm/Kconfig @@ -31,7 +31,6 @@ endif # SND_ARM config SND_PXA2XX_LIB tristate - select SND_AC97_CODEC if SND_PXA2XX_LIB_AC97 select SND_DMAENGINE_PCM config SND_PXA2XX_LIB_AC97 diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig index 776e148b0aa2..29f577e6dfc0 100644 --- a/sound/soc/pxa/Kconfig +++ b/sound/soc/pxa/Kconfig @@ -19,14 +19,13 @@ config SND_MMP_SOC config SND_PXA2XX_AC97 tristate - select SND_AC97_CODEC config SND_PXA2XX_SOC_AC97 tristate - select AC97_BUS + select AC97_BUS_NEW select SND_PXA2XX_LIB select SND_PXA2XX_LIB_AC97 - select SND_SOC_AC97_BUS + select SND_SOC_AC97_BUS_NEW config SND_PXA2XX_SOC_I2S select SND_PXA2XX_LIB diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c index 9f779657bc86..f8a3aa6c6d4e 100644 --- a/sound/soc/pxa/pxa2xx-ac97.c +++ b/sound/soc/pxa/pxa2xx-ac97.c @@ -17,6 +17,7 @@ #include #include +#include #include #include #include @@ -27,43 +28,35 @@ #include #include -static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97) +static void pxa2xx_ac97_warm_reset(struct ac97_controller *adrv) { pxa2xx_ac97_try_warm_reset(); pxa2xx_ac97_finish_reset(); } -static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97) +static void pxa2xx_ac97_cold_reset(struct ac97_controller *adrv) { pxa2xx_ac97_try_cold_reset(); pxa2xx_ac97_finish_reset(); } -static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97, - unsigned short reg) +static int pxa2xx_ac97_read_actrl(struct ac97_controller *adrv, int slot, + unsigned short reg) { - int ret; - - ret = pxa2xx_ac97_read(ac97->num, reg); - if (ret < 0) - return 0; - else - return (unsigned short)(ret & 0xffff); + return pxa2xx_ac97_read(slot, reg); } -static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97, - unsigned short reg, unsigned short val) +static int pxa2xx_ac97_write_actrl(struct ac97_controller *adrv, int slot, + unsigned short reg, unsigned short val) { - int ret; - - ret = pxa2xx_ac97_write(ac97->num, reg, val); + return pxa2xx_ac97_write(slot, reg, val); } -static struct snd_ac97_bus_ops pxa2xx_ac97_ops = { - .read = pxa2xx_ac97_legacy_read, - .write = pxa2xx_ac97_legacy_write, +static struct ac97_controller_ops pxa2xx_ac97_ops = { + .read = pxa2xx_ac97_read_actrl, + .write = pxa2xx_ac97_write_actrl, .warm_reset = pxa2xx_ac97_warm_reset, .reset = pxa2xx_ac97_cold_reset, }; @@ -233,6 +226,9 @@ MODULE_DEVICE_TABLE(of, pxa2xx_ac97_dt_ids); static int pxa2xx_ac97_dev_probe(struct platform_device *pdev) { int ret; + struct ac97_controller *ctrl; + pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data; + void **codecs_pdata; if (pdev->id != -1) { dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n"); @@ -245,10 +241,14 @@ static int pxa2xx_ac97_dev_probe(struct platform_device *pdev) return ret; } - ret = snd_soc_set_ac97_ops(&pxa2xx_ac97_ops); - if (ret != 0) - return ret; + codecs_pdata = pdata ? pdata->codec_pdata : NULL; + ctrl = snd_ac97_controller_register(&pxa2xx_ac97_ops, &pdev->dev, + AC97_SLOTS_AVAILABLE_ALL, + codecs_pdata); + if (IS_ERR(ctrl)) + return PTR_ERR(ctrl); + platform_set_drvdata(pdev, ctrl); /* Punt most of the init to the SoC probe; we may need the machine * driver to do interesting things with the clocking to get us up * and running. @@ -259,8 +259,10 @@ static int pxa2xx_ac97_dev_probe(struct platform_device *pdev) static int pxa2xx_ac97_dev_remove(struct platform_device *pdev) { + struct ac97_controller *ctrl = platform_get_drvdata(pdev); + snd_soc_unregister_component(&pdev->dev); - snd_soc_set_ac97_ops(NULL); + snd_ac97_controller_unregister(ctrl); pxa2xx_ac97_hw_remove(pdev); return 0; } From 7c5cca3588545e7f255171e28e0dd6e384ebb91d Mon Sep 17 00:00:00 2001 From: Kristian Evensen Date: Sat, 8 Sep 2018 13:50:48 +0200 Subject: [PATCH 0832/1762] qmi_wwan: Support dynamic config on Quectel EP06 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Quectel EP06 (and EM06/EG06) supports dynamic configuration of USB interfaces, without the device changing VID/PID or configuration number. When the configuration is updated and interfaces are added/removed, the interface numbers change. This means that the current code for matching EP06 does not work. This patch removes the current EP06 interface number match, and replaces it with a match on class, subclass and protocol. Unfortunately, matching on those three alone is not enough, as the diag interface exports the same values as QMI. The other serial interfaces + adb export different values and do not match. The diag interface only has two endpoints, while the QMI interface has three. I have therefore added a check for number of interfaces, and we ignore the interface if the number of endpoints equals two. Signed-off-by: Kristian Evensen Acked-by: Bjørn Mork Acked-by: Dan Williams Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-) diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index cb0cc30c3d6a..e3270deecec2 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -967,6 +967,13 @@ static const struct usb_device_id products[] = { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7), .driver_info = (unsigned long)&qmi_wwan_info, }, + { /* Quectel EP06/EG06/EM06 */ + USB_DEVICE_AND_INTERFACE_INFO(0x2c7c, 0x0306, + USB_CLASS_VENDOR_SPEC, + USB_SUBCLASS_VENDOR_SPEC, + 0xff), + .driver_info = (unsigned long)&qmi_wwan_info_quirk_dtr, + }, /* 3. Combined interface devices matching on interface number */ {QMI_FIXED_INTF(0x0408, 0xea42, 4)}, /* Yota / Megafon M100-1 */ @@ -1255,7 +1262,6 @@ static const struct usb_device_id products[] = { {QMI_QUIRK_SET_DTR(0x2c7c, 0x0121, 4)}, /* Quectel EC21 Mini PCIe */ {QMI_QUIRK_SET_DTR(0x2c7c, 0x0191, 4)}, /* Quectel EG91 */ {QMI_FIXED_INTF(0x2c7c, 0x0296, 4)}, /* Quectel BG96 */ - {QMI_QUIRK_SET_DTR(0x2c7c, 0x0306, 4)}, /* Quectel EP06 Mini PCIe */ /* 4. Gobi 1000 devices */ {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ @@ -1331,6 +1337,19 @@ static bool quectel_ec20_detected(struct usb_interface *intf) return false; } +static bool quectel_ep06_diag_detected(struct usb_interface *intf) +{ + struct usb_device *dev = interface_to_usbdev(intf); + struct usb_interface_descriptor intf_desc = intf->cur_altsetting->desc; + + if (le16_to_cpu(dev->descriptor.idVendor) == 0x2c7c && + le16_to_cpu(dev->descriptor.idProduct) == 0x0306 && + intf_desc.bNumEndpoints == 2) + return true; + + return false; +} + static int qmi_wwan_probe(struct usb_interface *intf, const struct usb_device_id *prod) { @@ -1365,6 +1384,15 @@ static int qmi_wwan_probe(struct usb_interface *intf, return -ENODEV; } + /* Quectel EP06/EM06/EG06 supports dynamic interface configuration, so + * we need to match on class/subclass/protocol. These values are + * identical for the diagnostic- and QMI-interface, but bNumEndpoints is + * different. Ignore the current interface if the number of endpoints + * the number for the diag interface (two). + */ + if (quectel_ep06_diag_detected(intf)) + return -ENODEV; + return usbnet_probe(intf, id); } From 0a3b53305c8ff427bbc1d9d5bd78524007f19600 Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Fri, 7 Sep 2018 15:29:12 +0800 Subject: [PATCH 0833/1762] usb: xhci: fix interrupt transfer error happened on MTK platforms The MTK xHCI controller use some reserved bytes in endpoint context for bandwidth scheduling, so need keep them in xhci_endpoint_copy(); The issue is introduced by: commit f5249461b504 ("xhci: Clear the host side toggle manually when endpoint is soft reset") It resets endpoints and will drop bandwidth scheduling parameters used by interrupt or isochronous endpoints on MTK xHCI controller. Fixes: f5249461b504 ("xhci: Clear the host side toggle manually when endpoint is soft reset") Cc: stable@vger.kernel.org Signed-off-by: Chunfeng Yun Tested-by: Sean Wang Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-mem.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index ef350c33dc4a..b1f27aa38b10 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1613,6 +1613,10 @@ void xhci_endpoint_copy(struct xhci_hcd *xhci, in_ep_ctx->ep_info2 = out_ep_ctx->ep_info2; in_ep_ctx->deq = out_ep_ctx->deq; in_ep_ctx->tx_info = out_ep_ctx->tx_info; + if (xhci->quirks & XHCI_MTK_HOST) { + in_ep_ctx->reserved[0] = out_ep_ctx->reserved[0]; + in_ep_ctx->reserved[1] = out_ep_ctx->reserved[1]; + } } /* Copy output xhci_slot_ctx to the input xhci_slot_ctx. From fa827966090e2a6fc07b437d0d2ffae748ec6e28 Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Mon, 20 Aug 2018 12:10:26 +0900 Subject: [PATCH 0834/1762] usb: Change usb_of_get_companion_dev() place to usb/common Since renesas_usb3 udc driver calls usb_of_get_companion_dev() which is on usb/core/of.c, build error like below happens if we disable CONFIG_USB because the usb/core/ needs CONFIG_USB: ERROR: "usb_of_get_companion_dev" [drivers/usb/gadget/udc/renesas_usb3.ko] undefined! According to the usb/gadget/Kconfig, "NOTE: Gadget support ** DOES NOT ** depend on host-side CONFIG_USB !!". So, to fix the issue, this patch changes the usb_of_get_companion_dev() place from usb/core/of.c to usb/common/common.c to be called by both host and gadget. Reported-by: John Garry Fixes: 39facfa01c9f ("usb: gadget: udc: renesas_usb3: Add register of usb role switch") Signed-off-by: Yoshihiro Shimoda Acked-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman --- drivers/usb/common/common.c | 25 +++++++++++++++++++++++++ drivers/usb/core/of.c | 26 -------------------------- 2 files changed, 25 insertions(+), 26 deletions(-) diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c index 50a2362ed3ea..48277bbc15e4 100644 --- a/drivers/usb/common/common.c +++ b/drivers/usb/common/common.c @@ -246,6 +246,31 @@ int of_usb_update_otg_caps(struct device_node *np, } EXPORT_SYMBOL_GPL(of_usb_update_otg_caps); +/** + * usb_of_get_companion_dev - Find the companion device + * @dev: the device pointer to find a companion + * + * Find the companion device from platform bus. + * + * Takes a reference to the returned struct device which needs to be dropped + * after use. + * + * Return: On success, a pointer to the companion device, %NULL on failure. + */ +struct device *usb_of_get_companion_dev(struct device *dev) +{ + struct device_node *node; + struct platform_device *pdev = NULL; + + node = of_parse_phandle(dev->of_node, "companion", 0); + if (node) + pdev = of_find_device_by_node(node); + + of_node_put(node); + + return pdev ? &pdev->dev : NULL; +} +EXPORT_SYMBOL_GPL(usb_of_get_companion_dev); #endif MODULE_LICENSE("GPL"); diff --git a/drivers/usb/core/of.c b/drivers/usb/core/of.c index fd77442c2d12..651708d8c908 100644 --- a/drivers/usb/core/of.c +++ b/drivers/usb/core/of.c @@ -105,29 +105,3 @@ usb_of_get_interface_node(struct usb_device *udev, u8 config, u8 ifnum) return NULL; } EXPORT_SYMBOL_GPL(usb_of_get_interface_node); - -/** - * usb_of_get_companion_dev - Find the companion device - * @dev: the device pointer to find a companion - * - * Find the companion device from platform bus. - * - * Takes a reference to the returned struct device which needs to be dropped - * after use. - * - * Return: On success, a pointer to the companion device, %NULL on failure. - */ -struct device *usb_of_get_companion_dev(struct device *dev) -{ - struct device_node *node; - struct platform_device *pdev = NULL; - - node = of_parse_phandle(dev->of_node, "companion", 0); - if (node) - pdev = of_find_device_by_node(node); - - of_node_put(node); - - return pdev ? &pdev->dev : NULL; -} -EXPORT_SYMBOL_GPL(usb_of_get_companion_dev); From df3aa13c7bbb307e172c37f193f9a7aa058d4739 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Wed, 5 Sep 2018 17:56:46 +0200 Subject: [PATCH 0835/1762] Revert "cdc-acm: implement put_char() and flush_chars()" This reverts commit a81cf9799ad7299b03a4dff020d9685f9ac5f3e0. The patch causes a regression, which I cannot find the reason for. So let's revert for now, as a revert hurts only performance. Original report: I was trying to resolve the problem with Oliver but we don't get any conclusion for 5 months, so I am now sending this to mail list and cdc_acm authors. I am using simple request-response protocol to obtain the boiller parameters in constant intervals. A simple one transaction is: 1. opening the /dev/ttyACM0 2. sending the following 10-bytes request to the device: unsigned char req[] = {0x02, 0xfe, 0x01, 0x05, 0x08, 0x02, 0x01, 0x69, 0xab, 0x03}; 3. reading response (frame of 74 bytes length). 4. closing the descriptor I am doing this transaction with 5 seconds intervals. Before the bad commit everything was working correctly: I've got a requests and a responses in a timely manner. After the bad commit more time I am using the kernel module, more problems I have. The graph [2] is showing the problem. As you can see after module load all seems fine but after about 30 minutes I've got a plenty of EAGAINs when doing read()'s and trying to read back the data. When I rmmod and insmod the cdc_acm module again, then the situation is starting over again: running ok shortly after load, and more time it is running, more EAGAINs I have when calling read(). As a bonus I can see the problem on the device itself: The device is configured as you can see here on this screen [3]. It has two transmision LEDs: TX and RX. Blink duration is set for 100ms. This is a recording before the bad commit when all is working fine: [4] And this is with the bad commit: [5] As you can see the TX led is blinking wrongly long (indicating transmission?) and I have problems doing read() calls (EAGAIN). Reported-by: Mariusz Bialonczyk Signed-off-by: Oliver Neukum Fixes: a81cf9799ad7 ("cdc-acm: implement put_char() and flush_chars()") Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 73 ------------------------------------- drivers/usb/class/cdc-acm.h | 1 - 2 files changed, 74 deletions(-) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 27346d69f393..f9b40a9dc4d3 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -780,20 +780,9 @@ static int acm_tty_write(struct tty_struct *tty, } if (acm->susp_count) { - if (acm->putbuffer) { - /* now to preserve order */ - usb_anchor_urb(acm->putbuffer->urb, &acm->delayed); - acm->putbuffer = NULL; - } usb_anchor_urb(wb->urb, &acm->delayed); spin_unlock_irqrestore(&acm->write_lock, flags); return count; - } else { - if (acm->putbuffer) { - /* at this point there is no good way to handle errors */ - acm_start_wb(acm, acm->putbuffer); - acm->putbuffer = NULL; - } } stat = acm_start_wb(acm, wb); @@ -804,66 +793,6 @@ static int acm_tty_write(struct tty_struct *tty, return count; } -static void acm_tty_flush_chars(struct tty_struct *tty) -{ - struct acm *acm = tty->driver_data; - struct acm_wb *cur; - int err; - unsigned long flags; - - spin_lock_irqsave(&acm->write_lock, flags); - - cur = acm->putbuffer; - if (!cur) /* nothing to do */ - goto out; - - acm->putbuffer = NULL; - err = usb_autopm_get_interface_async(acm->control); - if (err < 0) { - cur->use = 0; - acm->putbuffer = cur; - goto out; - } - - if (acm->susp_count) - usb_anchor_urb(cur->urb, &acm->delayed); - else - acm_start_wb(acm, cur); -out: - spin_unlock_irqrestore(&acm->write_lock, flags); - return; -} - -static int acm_tty_put_char(struct tty_struct *tty, unsigned char ch) -{ - struct acm *acm = tty->driver_data; - struct acm_wb *cur; - int wbn; - unsigned long flags; - -overflow: - cur = acm->putbuffer; - if (!cur) { - spin_lock_irqsave(&acm->write_lock, flags); - wbn = acm_wb_alloc(acm); - if (wbn >= 0) { - cur = &acm->wb[wbn]; - acm->putbuffer = cur; - } - spin_unlock_irqrestore(&acm->write_lock, flags); - if (!cur) - return 0; - } - - if (cur->len == acm->writesize) { - acm_tty_flush_chars(tty); - goto overflow; - } - - cur->buf[cur->len++] = ch; - return 1; -} - static int acm_tty_write_room(struct tty_struct *tty) { struct acm *acm = tty->driver_data; @@ -1987,8 +1916,6 @@ static const struct tty_operations acm_ops = { .cleanup = acm_tty_cleanup, .hangup = acm_tty_hangup, .write = acm_tty_write, - .put_char = acm_tty_put_char, - .flush_chars = acm_tty_flush_chars, .write_room = acm_tty_write_room, .ioctl = acm_tty_ioctl, .throttle = acm_tty_throttle, diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h index eacc116e83da..ca06b20d7af9 100644 --- a/drivers/usb/class/cdc-acm.h +++ b/drivers/usb/class/cdc-acm.h @@ -96,7 +96,6 @@ struct acm { unsigned long read_urbs_free; struct urb *read_urbs[ACM_NR]; struct acm_rb read_buffers[ACM_NR]; - struct acm_wb *putbuffer; /* for acm_tty_put_char() */ int rx_buflimit; spinlock_t read_lock; u8 *notification_buffer; /* to reassemble fragmented notifications */ From 658d8cbd07dae22ccecf49399e18c609c4e85c53 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Wed, 25 Jul 2018 14:29:07 +0200 Subject: [PATCH 0836/1762] drm/vc4: Fix the "no scaling" case on multi-planar YUV formats When there's no scaling requested ->is_unity should be true no matter the format. Also, when no scaling is requested and we have a multi-planar YUV format, we should leave ->y_scaling[0] to VC4_SCALING_NONE and only set ->x_scaling[0] to VC4_SCALING_PPF. Doing this fixes an hardly visible artifact (seen when using modetest and a rather big overlay plane in YUV420). Fixes: fc04023fafec ("drm/vc4: Add support for YUV planes.") Cc: Signed-off-by: Boris Brezillon Reviewed-by: Eric Anholt Link: https://patchwork.freedesktop.org/patch/msgid/20180725122907.13702-1-boris.brezillon@bootlin.com Signed-off-by: Sean Paul --- drivers/gpu/drm/vc4/vc4_plane.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c index cfb50fedfa2b..a3275fa66b7b 100644 --- a/drivers/gpu/drm/vc4/vc4_plane.c +++ b/drivers/gpu/drm/vc4/vc4_plane.c @@ -297,6 +297,9 @@ static int vc4_plane_setup_clipping_and_scaling(struct drm_plane_state *state) vc4_state->y_scaling[0] = vc4_get_scaling_mode(vc4_state->src_h[0], vc4_state->crtc_h); + vc4_state->is_unity = (vc4_state->x_scaling[0] == VC4_SCALING_NONE && + vc4_state->y_scaling[0] == VC4_SCALING_NONE); + if (num_planes > 1) { vc4_state->is_yuv = true; @@ -312,24 +315,17 @@ static int vc4_plane_setup_clipping_and_scaling(struct drm_plane_state *state) vc4_get_scaling_mode(vc4_state->src_h[1], vc4_state->crtc_h); - /* YUV conversion requires that scaling be enabled, - * even on a plane that's otherwise 1:1. Choose TPZ - * for simplicity. + /* YUV conversion requires that horizontal scaling be enabled, + * even on a plane that's otherwise 1:1. Looks like only PPF + * works in that case, so let's pick that one. */ - if (vc4_state->x_scaling[0] == VC4_SCALING_NONE) - vc4_state->x_scaling[0] = VC4_SCALING_TPZ; - if (vc4_state->y_scaling[0] == VC4_SCALING_NONE) - vc4_state->y_scaling[0] = VC4_SCALING_TPZ; + if (vc4_state->is_unity) + vc4_state->x_scaling[0] = VC4_SCALING_PPF; } else { vc4_state->x_scaling[1] = VC4_SCALING_NONE; vc4_state->y_scaling[1] = VC4_SCALING_NONE; } - vc4_state->is_unity = (vc4_state->x_scaling[0] == VC4_SCALING_NONE && - vc4_state->y_scaling[0] == VC4_SCALING_NONE && - vc4_state->x_scaling[1] == VC4_SCALING_NONE && - vc4_state->y_scaling[1] == VC4_SCALING_NONE); - /* No configuring scaling on the cursor plane, since it gets non-vblank-synced updates, and scaling requires requires LBM changes which have to be vblank-synced. @@ -672,7 +668,10 @@ static int vc4_plane_mode_set(struct drm_plane *plane, vc4_dlist_write(vc4_state, SCALER_CSC2_ITR_R_601_5); } - if (!vc4_state->is_unity) { + if (vc4_state->x_scaling[0] != VC4_SCALING_NONE || + vc4_state->x_scaling[1] != VC4_SCALING_NONE || + vc4_state->y_scaling[0] != VC4_SCALING_NONE || + vc4_state->y_scaling[1] != VC4_SCALING_NONE) { /* LBM Base Address. */ if (vc4_state->y_scaling[0] != VC4_SCALING_NONE || vc4_state->y_scaling[1] != VC4_SCALING_NONE) { From 7eb33224572636248d5b6cfa1a6b2472207be5c4 Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Sat, 4 Aug 2018 18:49:27 +0800 Subject: [PATCH 0837/1762] drm/pl111: Make sure of_device_id tables are NULL terminated We prefer to of_device_id tables are NULL terminated. So make vexpress_muxfpga_match is NULL terminated. Signed-off-by: zhong jiang Signed-off-by: Linus Walleij Link: https://patchwork.freedesktop.org/patch/msgid/1533379767-15629-1-git-send-email-zhongjiang@huawei.com Signed-off-by: Sean Paul --- drivers/gpu/drm/pl111/pl111_vexpress.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/pl111/pl111_vexpress.c b/drivers/gpu/drm/pl111/pl111_vexpress.c index a534b225e31b..5fa0441bb6df 100644 --- a/drivers/gpu/drm/pl111/pl111_vexpress.c +++ b/drivers/gpu/drm/pl111/pl111_vexpress.c @@ -111,7 +111,8 @@ static int vexpress_muxfpga_probe(struct platform_device *pdev) } static const struct of_device_id vexpress_muxfpga_match[] = { - { .compatible = "arm,vexpress-muxfpga", } + { .compatible = "arm,vexpress-muxfpga", }, + {} }; static struct platform_driver vexpress_muxfpga_driver = { From 3510e7a7f91088159bfc67e8abdc9f9e77d28870 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Mon, 27 Aug 2018 16:39:50 +0800 Subject: [PATCH 0838/1762] drm/sun4i: Remove R40 display pipeline compatibles Two patches from the R40 display pipeline support series weren't applied with the rest of the series. When they did get applied, the -rc6 deadline for drm-misc-next had past, so they didn't get into 4.19-rc1 with the rest of the series. However, the two patches are crucial in the parsing of the R40's display pipeline graph in the device tree. Without them, the driver crashes because it can't follow the odd graph structure. This patch removes the R40 compatibles from the sun4i-drm driver, effectively disabling DRM support for the R40 for one release cycle. This will prevent the driver from crashing upon probing. The compatibles should be reinstated for the next release. Signed-off-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20180827083950.602-1-wens@csie.org Signed-off-by: Sean Paul --- drivers/gpu/drm/sun4i/sun4i_drv.c | 1 - drivers/gpu/drm/sun4i/sun8i_mixer.c | 24 ------------------------ drivers/gpu/drm/sun4i/sun8i_tcon_top.c | 1 - 3 files changed, 26 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c index dd19d674055c..8b0cd08034e0 100644 --- a/drivers/gpu/drm/sun4i/sun4i_drv.c +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c @@ -418,7 +418,6 @@ static const struct of_device_id sun4i_drv_of_table[] = { { .compatible = "allwinner,sun8i-a33-display-engine" }, { .compatible = "allwinner,sun8i-a83t-display-engine" }, { .compatible = "allwinner,sun8i-h3-display-engine" }, - { .compatible = "allwinner,sun8i-r40-display-engine" }, { .compatible = "allwinner,sun8i-v3s-display-engine" }, { .compatible = "allwinner,sun9i-a80-display-engine" }, { } diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c index fc3713608f78..cb65b0ed53fd 100644 --- a/drivers/gpu/drm/sun4i/sun8i_mixer.c +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c @@ -545,22 +545,6 @@ static const struct sun8i_mixer_cfg sun8i_h3_mixer0_cfg = { .vi_num = 1, }; -static const struct sun8i_mixer_cfg sun8i_r40_mixer0_cfg = { - .ccsc = 0, - .mod_rate = 297000000, - .scaler_mask = 0xf, - .ui_num = 3, - .vi_num = 1, -}; - -static const struct sun8i_mixer_cfg sun8i_r40_mixer1_cfg = { - .ccsc = 1, - .mod_rate = 297000000, - .scaler_mask = 0x3, - .ui_num = 1, - .vi_num = 1, -}; - static const struct sun8i_mixer_cfg sun8i_v3s_mixer_cfg = { .vi_num = 2, .ui_num = 1, @@ -582,14 +566,6 @@ static const struct of_device_id sun8i_mixer_of_table[] = { .compatible = "allwinner,sun8i-h3-de2-mixer-0", .data = &sun8i_h3_mixer0_cfg, }, - { - .compatible = "allwinner,sun8i-r40-de2-mixer-0", - .data = &sun8i_r40_mixer0_cfg, - }, - { - .compatible = "allwinner,sun8i-r40-de2-mixer-1", - .data = &sun8i_r40_mixer1_cfg, - }, { .compatible = "allwinner,sun8i-v3s-de2-mixer", .data = &sun8i_v3s_mixer_cfg, diff --git a/drivers/gpu/drm/sun4i/sun8i_tcon_top.c b/drivers/gpu/drm/sun4i/sun8i_tcon_top.c index 55fe398d8290..d5240b777a8f 100644 --- a/drivers/gpu/drm/sun4i/sun8i_tcon_top.c +++ b/drivers/gpu/drm/sun4i/sun8i_tcon_top.c @@ -253,7 +253,6 @@ static int sun8i_tcon_top_remove(struct platform_device *pdev) /* sun4i_drv uses this list to check if a device node is a TCON TOP */ const struct of_device_id sun8i_tcon_top_of_table[] = { - { .compatible = "allwinner,sun8i-r40-tcon-top" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, sun8i_tcon_top_of_table); From fcb74da1eb8edd3a4ef9b9724f88ed709d684227 Mon Sep 17 00:00:00 2001 From: Emil Lundmark Date: Mon, 28 May 2018 16:27:11 +0200 Subject: [PATCH 0839/1762] drm: udl: Destroy framebuffer only if it was initialized MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes a NULL pointer dereference that can happen if the UDL driver is unloaded before the framebuffer is initialized. This can happen e.g. if the USB device is unplugged right after it was plugged in. As explained by Stéphane Marchesin: It happens when fbdev is disabled (which is the case for Chrome OS). Even though intialization of the fbdev part is optional (it's done in udlfb_create which is the callback for fb_probe()), the teardown isn't optional (udl_driver_unload -> udl_fbdev_cleanup -> udl_fbdev_destroy). Note that udl_fbdev_cleanup *tries* to be conditional (you can see it does if (!udl->fbdev)) but that doesn't work, because udl->fbdev is always set during udl_fbdev_init. Cc: stable@vger.kernel.org Suggested-by: Sean Paul Reviewed-by: Sean Paul Acked-by: Daniel Vetter Signed-off-by: Emil Lundmark Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20180528142711.142466-1-lndmrk@chromium.org Signed-off-by: Sean Paul --- drivers/gpu/drm/udl/udl_fb.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c index dbb62f6eb48a..dd9ffded223b 100644 --- a/drivers/gpu/drm/udl/udl_fb.c +++ b/drivers/gpu/drm/udl/udl_fb.c @@ -432,9 +432,11 @@ static void udl_fbdev_destroy(struct drm_device *dev, { drm_fb_helper_unregister_fbi(&ufbdev->helper); drm_fb_helper_fini(&ufbdev->helper); - drm_framebuffer_unregister_private(&ufbdev->ufb.base); - drm_framebuffer_cleanup(&ufbdev->ufb.base); - drm_gem_object_put_unlocked(&ufbdev->ufb.obj->base); + if (ufbdev->ufb.obj) { + drm_framebuffer_unregister_private(&ufbdev->ufb.base); + drm_framebuffer_cleanup(&ufbdev->ufb.base); + drm_gem_object_put_unlocked(&ufbdev->ufb.obj->base); + } } int udl_fbdev_init(struct drm_device *dev) From affab51082174f60ef71ced8ab5fbe71f00e9ae3 Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Mon, 10 Sep 2018 13:01:52 -0500 Subject: [PATCH 0840/1762] platform/x86: dell-smbios-wmi: Correct a memory leak ACPI buffers were being allocated but never freed. Reported-by: Pinzhen Xu Signed-off-by: Mario Limonciello Cc: stable@vger.kernel.org Signed-off-by: Darren Hart (VMware) --- drivers/platform/x86/dell-smbios-wmi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/platform/x86/dell-smbios-wmi.c b/drivers/platform/x86/dell-smbios-wmi.c index 88afe5651d24..cf2229ece9ff 100644 --- a/drivers/platform/x86/dell-smbios-wmi.c +++ b/drivers/platform/x86/dell-smbios-wmi.c @@ -78,6 +78,7 @@ static int run_smbios_call(struct wmi_device *wdev) dev_dbg(&wdev->dev, "result: [%08x,%08x,%08x,%08x]\n", priv->buf->std.output[0], priv->buf->std.output[1], priv->buf->std.output[2], priv->buf->std.output[3]); + kfree(output.pointer); return 0; } From ff0e9f26288d2daee4950f42b37a3d3d30d36ec1 Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Mon, 10 Sep 2018 13:01:53 -0500 Subject: [PATCH 0841/1762] platform/x86: alienware-wmi: Correct a memory leak An ACPI buffer that was allocated was not being freed after use. Signed-off-by: Mario Limonciello Cc: stable@vger.kernel.org Signed-off-by: Darren Hart (VMware) --- drivers/platform/x86/alienware-wmi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/platform/x86/alienware-wmi.c b/drivers/platform/x86/alienware-wmi.c index d975462a4c57..f10af5c383c5 100644 --- a/drivers/platform/x86/alienware-wmi.c +++ b/drivers/platform/x86/alienware-wmi.c @@ -536,6 +536,7 @@ static acpi_status alienware_wmax_command(struct wmax_basic_args *in_args, if (obj && obj->type == ACPI_TYPE_INTEGER) *out_data = (u32) obj->integer.value; } + kfree(output.pointer); return status; } From 3ab91828166895600efd9cdc3a0eb32001f7204a Mon Sep 17 00:00:00 2001 From: Joe Thornber Date: Mon, 10 Sep 2018 16:50:09 +0100 Subject: [PATCH 0842/1762] dm thin metadata: try to avoid ever aborting transactions Committing a transaction can consume some metadata of it's own, we now reserve a small amount of metadata to cover this. Free metadata reported by the kernel will not include this reserve. If any of the reserve has been used after a commit we enter a new internal state PM_OUT_OF_METADATA_SPACE. This is reported as PM_READ_ONLY, so no userland changes are needed. If the metadata device is resized the pool will move back to PM_WRITE. These changes mean we never need to abort and rollback a transaction due to running out of metadata space. This is particularly important because there have been a handful of reports of data corruption against DM thin-provisioning that can all be attributed to the thin-pool having ran out of metadata space. Signed-off-by: Joe Thornber Signed-off-by: Mike Snitzer --- drivers/md/dm-thin-metadata.c | 36 ++++++++++++++++- drivers/md/dm-thin.c | 73 +++++++++++++++++++++++++++++++---- 2 files changed, 100 insertions(+), 9 deletions(-) diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c index 72142021b5c9..74f6770c70b1 100644 --- a/drivers/md/dm-thin-metadata.c +++ b/drivers/md/dm-thin-metadata.c @@ -188,6 +188,12 @@ struct dm_pool_metadata { unsigned long flags; sector_t data_block_size; + /* + * We reserve a section of the metadata for commit overhead. + * All reported space does *not* include this. + */ + dm_block_t metadata_reserve; + /* * Set if a transaction has to be aborted but the attempt to roll back * to the previous (good) transaction failed. The only pool metadata @@ -816,6 +822,22 @@ static int __commit_transaction(struct dm_pool_metadata *pmd) return dm_tm_commit(pmd->tm, sblock); } +static void __set_metadata_reserve(struct dm_pool_metadata *pmd) +{ + int r; + dm_block_t total; + dm_block_t max_blocks = 4096; /* 16M */ + + r = dm_sm_get_nr_blocks(pmd->metadata_sm, &total); + if (r) { + DMERR("could not get size of metadata device"); + pmd->metadata_reserve = max_blocks; + } else { + sector_div(total, 10); + pmd->metadata_reserve = min(max_blocks, total); + } +} + struct dm_pool_metadata *dm_pool_metadata_open(struct block_device *bdev, sector_t data_block_size, bool format_device) @@ -849,6 +871,8 @@ struct dm_pool_metadata *dm_pool_metadata_open(struct block_device *bdev, return ERR_PTR(r); } + __set_metadata_reserve(pmd); + return pmd; } @@ -1820,6 +1844,13 @@ int dm_pool_get_free_metadata_block_count(struct dm_pool_metadata *pmd, down_read(&pmd->root_lock); if (!pmd->fail_io) r = dm_sm_get_nr_free(pmd->metadata_sm, result); + + if (!r) { + if (*result < pmd->metadata_reserve) + *result = 0; + else + *result -= pmd->metadata_reserve; + } up_read(&pmd->root_lock); return r; @@ -1932,8 +1963,11 @@ int dm_pool_resize_metadata_dev(struct dm_pool_metadata *pmd, dm_block_t new_cou int r = -EINVAL; down_write(&pmd->root_lock); - if (!pmd->fail_io) + if (!pmd->fail_io) { r = __resize_space_map(pmd->metadata_sm, new_count); + if (!r) + __set_metadata_reserve(pmd); + } up_write(&pmd->root_lock); return r; diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 7bd60a150f8f..aaf1ad481ee8 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -200,7 +200,13 @@ struct dm_thin_new_mapping; enum pool_mode { PM_WRITE, /* metadata may be changed */ PM_OUT_OF_DATA_SPACE, /* metadata may be changed, though data may not be allocated */ + + /* + * Like READ_ONLY, except may switch back to WRITE on metadata resize. Reported as READ_ONLY. + */ + PM_OUT_OF_METADATA_SPACE, PM_READ_ONLY, /* metadata may not be changed */ + PM_FAIL, /* all I/O fails */ }; @@ -1371,7 +1377,35 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode); static void requeue_bios(struct pool *pool); -static void check_for_space(struct pool *pool) +static bool is_read_only_pool_mode(enum pool_mode mode) +{ + return (mode == PM_OUT_OF_METADATA_SPACE || mode == PM_READ_ONLY); +} + +static bool is_read_only(struct pool *pool) +{ + return is_read_only_pool_mode(get_pool_mode(pool)); +} + +static void check_for_metadata_space(struct pool *pool) +{ + int r; + const char *ooms_reason = NULL; + dm_block_t nr_free; + + r = dm_pool_get_free_metadata_block_count(pool->pmd, &nr_free); + if (r) + ooms_reason = "Could not get free metadata blocks"; + else if (!nr_free) + ooms_reason = "No free metadata blocks"; + + if (ooms_reason && !is_read_only(pool)) { + DMERR("%s", ooms_reason); + set_pool_mode(pool, PM_OUT_OF_METADATA_SPACE); + } +} + +static void check_for_data_space(struct pool *pool) { int r; dm_block_t nr_free; @@ -1397,14 +1431,16 @@ static int commit(struct pool *pool) { int r; - if (get_pool_mode(pool) >= PM_READ_ONLY) + if (get_pool_mode(pool) >= PM_OUT_OF_METADATA_SPACE) return -EINVAL; r = dm_pool_commit_metadata(pool->pmd); if (r) metadata_operation_failed(pool, "dm_pool_commit_metadata", r); - else - check_for_space(pool); + else { + check_for_metadata_space(pool); + check_for_data_space(pool); + } return r; } @@ -1470,6 +1506,19 @@ static int alloc_data_block(struct thin_c *tc, dm_block_t *result) return r; } + r = dm_pool_get_free_metadata_block_count(pool->pmd, &free_blocks); + if (r) { + metadata_operation_failed(pool, "dm_pool_get_free_metadata_block_count", r); + return r; + } + + if (!free_blocks) { + /* Let's commit before we use up the metadata reserve. */ + r = commit(pool); + if (r) + return r; + } + return 0; } @@ -1501,6 +1550,7 @@ static blk_status_t should_error_unserviceable_bio(struct pool *pool) case PM_OUT_OF_DATA_SPACE: return pool->pf.error_if_no_space ? BLK_STS_NOSPC : 0; + case PM_OUT_OF_METADATA_SPACE: case PM_READ_ONLY: case PM_FAIL: return BLK_STS_IOERR; @@ -2464,8 +2514,9 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode) error_retry_list(pool); break; + case PM_OUT_OF_METADATA_SPACE: case PM_READ_ONLY: - if (old_mode != new_mode) + if (!is_read_only_pool_mode(old_mode)) notify_of_pool_mode_change(pool, "read-only"); dm_pool_metadata_read_only(pool->pmd); pool->process_bio = process_bio_read_only; @@ -3403,6 +3454,10 @@ static int maybe_resize_metadata_dev(struct dm_target *ti, bool *need_commit) DMINFO("%s: growing the metadata device from %llu to %llu blocks", dm_device_name(pool->pool_md), sb_metadata_dev_size, metadata_dev_size); + + if (get_pool_mode(pool) == PM_OUT_OF_METADATA_SPACE) + set_pool_mode(pool, PM_WRITE); + r = dm_pool_resize_metadata_dev(pool->pmd, metadata_dev_size); if (r) { metadata_operation_failed(pool, "dm_pool_resize_metadata_dev", r); @@ -3707,7 +3762,7 @@ static int pool_message(struct dm_target *ti, unsigned argc, char **argv, struct pool_c *pt = ti->private; struct pool *pool = pt->pool; - if (get_pool_mode(pool) >= PM_READ_ONLY) { + if (get_pool_mode(pool) >= PM_OUT_OF_METADATA_SPACE) { DMERR("%s: unable to service pool target messages in READ_ONLY or FAIL mode", dm_device_name(pool->pool_md)); return -EOPNOTSUPP; @@ -3781,6 +3836,7 @@ static void pool_status(struct dm_target *ti, status_type_t type, dm_block_t nr_blocks_data; dm_block_t nr_blocks_metadata; dm_block_t held_root; + enum pool_mode mode; char buf[BDEVNAME_SIZE]; char buf2[BDEVNAME_SIZE]; struct pool_c *pt = ti->private; @@ -3851,9 +3907,10 @@ static void pool_status(struct dm_target *ti, status_type_t type, else DMEMIT("- "); - if (pool->pf.mode == PM_OUT_OF_DATA_SPACE) + mode = get_pool_mode(pool); + if (mode == PM_OUT_OF_DATA_SPACE) DMEMIT("out_of_data_space "); - else if (pool->pf.mode == PM_READ_ONLY) + else if (is_read_only_pool_mode(mode)) DMEMIT("ro "); else DMEMIT("rw "); From f94e63801ab2791ed64c409d0f751f6a0c953ead Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Fri, 24 Aug 2018 23:22:08 +0200 Subject: [PATCH 0843/1762] netfilter: conntrack: reset tcp maxwin on re-register Doug Smythies says: Sometimes it is desirable to temporarily disable, or clear, the iptables rule set on a computer being controlled via a secure shell session (SSH). While unwise on an internet facing computer, I also do it often on non-internet accessible computers while testing. Recently, this has become problematic, with the SSH session being dropped upon re-load of the rule set. The problem is that when all rules are deleted, conntrack hooks get unregistered. In case the rules are re-added later, its possible that tcp window has moved far enough so that all packets are considered invalid (out of window) until entry expires (which can take forever, default established timeout is 5 days). Fix this by clearing maxwin of existing tcp connections on register. v2: don't touch entries on hook removal. v3: remove obsolete expiry check. Reported-by: Doug Smythies Fixes: 4d3a57f23dec59 ("netfilter: conntrack: do not enable connection tracking unless needed") Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_proto.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c index 9f14b0df6960..51c5d7eec0a3 100644 --- a/net/netfilter/nf_conntrack_proto.c +++ b/net/netfilter/nf_conntrack_proto.c @@ -776,9 +776,26 @@ static const struct nf_hook_ops ipv6_conntrack_ops[] = { }; #endif +static int nf_ct_tcp_fixup(struct nf_conn *ct, void *_nfproto) +{ + u8 nfproto = (unsigned long)_nfproto; + + if (nf_ct_l3num(ct) != nfproto) + return 0; + + if (nf_ct_protonum(ct) == IPPROTO_TCP && + ct->proto.tcp.state == TCP_CONNTRACK_ESTABLISHED) { + ct->proto.tcp.seen[0].td_maxwin = 0; + ct->proto.tcp.seen[1].td_maxwin = 0; + } + + return 0; +} + static int nf_ct_netns_do_get(struct net *net, u8 nfproto) { struct nf_conntrack_net *cnet = net_generic(net, nf_conntrack_net_id); + bool fixup_needed = false; int err = 0; mutex_lock(&nf_ct_proto_mutex); @@ -798,6 +815,8 @@ static int nf_ct_netns_do_get(struct net *net, u8 nfproto) ARRAY_SIZE(ipv4_conntrack_ops)); if (err) cnet->users4 = 0; + else + fixup_needed = true; break; #if IS_ENABLED(CONFIG_IPV6) case NFPROTO_IPV6: @@ -814,6 +833,8 @@ static int nf_ct_netns_do_get(struct net *net, u8 nfproto) ARRAY_SIZE(ipv6_conntrack_ops)); if (err) cnet->users6 = 0; + else + fixup_needed = true; break; #endif default: @@ -822,6 +843,11 @@ static int nf_ct_netns_do_get(struct net *net, u8 nfproto) } out_unlock: mutex_unlock(&nf_ct_proto_mutex); + + if (fixup_needed) + nf_ct_iterate_cleanup_net(net, nf_ct_tcp_fixup, + (void *)(unsigned long)nfproto, 0, 0); + return err; } From a874752a10da113f513980e28f562d946d3f829d Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Fri, 31 Aug 2018 12:36:01 +0200 Subject: [PATCH 0844/1762] netfilter: conntrack: timeout interface depend on CONFIG_NF_CONNTRACK_TIMEOUT Now that cttimeout support for nft_ct is in place, these should depend on CONFIG_NF_CONNTRACK_TIMEOUT otherwise we can crash when dumping the policy if this option is not enabled. [ 71.600121] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 [...] [ 71.600141] CPU: 3 PID: 7612 Comm: nft Not tainted 4.18.0+ #246 [...] [ 71.600188] Call Trace: [ 71.600201] ? nft_ct_timeout_obj_dump+0xc6/0xf0 [nft_ct] Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_proto_dccp.c | 12 ++++++------ net/netfilter/nf_conntrack_proto_generic.c | 8 ++++---- net/netfilter/nf_conntrack_proto_gre.c | 8 ++++---- net/netfilter/nf_conntrack_proto_icmp.c | 8 ++++---- net/netfilter/nf_conntrack_proto_icmpv6.c | 8 ++++---- net/netfilter/nf_conntrack_proto_sctp.c | 14 +++++++------- net/netfilter/nf_conntrack_proto_tcp.c | 12 ++++++------ net/netfilter/nf_conntrack_proto_udp.c | 20 ++++++++++---------- 8 files changed, 45 insertions(+), 45 deletions(-) diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c index b81f70039828..f3f91ed2c21a 100644 --- a/net/netfilter/nf_conntrack_proto_dccp.c +++ b/net/netfilter/nf_conntrack_proto_dccp.c @@ -675,7 +675,7 @@ static int nlattr_to_dccp(struct nlattr *cda[], struct nf_conn *ct) } #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT #include #include @@ -728,7 +728,7 @@ dccp_timeout_nla_policy[CTA_TIMEOUT_DCCP_MAX+1] = { [CTA_TIMEOUT_DCCP_CLOSING] = { .type = NLA_U32 }, [CTA_TIMEOUT_DCCP_TIMEWAIT] = { .type = NLA_U32 }, }; -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ #ifdef CONFIG_SYSCTL /* template, data assigned later */ @@ -863,7 +863,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_dccp4 = { .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, .nla_policy = nf_ct_port_nla_policy, #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = dccp_timeout_nlattr_to_obj, .obj_to_nlattr = dccp_timeout_obj_to_nlattr, @@ -871,7 +871,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_dccp4 = { .obj_size = sizeof(unsigned int) * CT_DCCP_MAX, .nla_policy = dccp_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .init_net = dccp_init_net, .get_net_proto = dccp_get_net_proto, }; @@ -896,7 +896,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_dccp6 = { .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, .nla_policy = nf_ct_port_nla_policy, #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = dccp_timeout_nlattr_to_obj, .obj_to_nlattr = dccp_timeout_obj_to_nlattr, @@ -904,7 +904,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_dccp6 = { .obj_size = sizeof(unsigned int) * CT_DCCP_MAX, .nla_policy = dccp_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .init_net = dccp_init_net, .get_net_proto = dccp_get_net_proto, }; diff --git a/net/netfilter/nf_conntrack_proto_generic.c b/net/netfilter/nf_conntrack_proto_generic.c index ac4a0b296dcd..1df3244ecd07 100644 --- a/net/netfilter/nf_conntrack_proto_generic.c +++ b/net/netfilter/nf_conntrack_proto_generic.c @@ -70,7 +70,7 @@ static bool generic_new(struct nf_conn *ct, const struct sk_buff *skb, return ret; } -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT #include #include @@ -113,7 +113,7 @@ static const struct nla_policy generic_timeout_nla_policy[CTA_TIMEOUT_GENERIC_MAX+1] = { [CTA_TIMEOUT_GENERIC_TIMEOUT] = { .type = NLA_U32 }, }; -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ #ifdef CONFIG_SYSCTL static struct ctl_table generic_sysctl_table[] = { @@ -164,7 +164,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_generic = .pkt_to_tuple = generic_pkt_to_tuple, .packet = generic_packet, .new = generic_new, -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = generic_timeout_nlattr_to_obj, .obj_to_nlattr = generic_timeout_obj_to_nlattr, @@ -172,7 +172,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_generic = .obj_size = sizeof(unsigned int), .nla_policy = generic_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .init_net = generic_init_net, .get_net_proto = generic_get_net_proto, }; diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c index d1632252bf5b..650eb4fba2c5 100644 --- a/net/netfilter/nf_conntrack_proto_gre.c +++ b/net/netfilter/nf_conntrack_proto_gre.c @@ -285,7 +285,7 @@ static void gre_destroy(struct nf_conn *ct) nf_ct_gre_keymap_destroy(master); } -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT #include #include @@ -334,7 +334,7 @@ gre_timeout_nla_policy[CTA_TIMEOUT_GRE_MAX+1] = { [CTA_TIMEOUT_GRE_UNREPLIED] = { .type = NLA_U32 }, [CTA_TIMEOUT_GRE_REPLIED] = { .type = NLA_U32 }, }; -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ static int gre_init_net(struct net *net, u_int16_t proto) { @@ -367,7 +367,7 @@ static const struct nf_conntrack_l4proto nf_conntrack_l4proto_gre4 = { .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, .nla_policy = nf_ct_port_nla_policy, #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = gre_timeout_nlattr_to_obj, .obj_to_nlattr = gre_timeout_obj_to_nlattr, @@ -375,7 +375,7 @@ static const struct nf_conntrack_l4proto nf_conntrack_l4proto_gre4 = { .obj_size = sizeof(unsigned int) * GRE_CT_MAX, .nla_policy = gre_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .net_id = &proto_gre_net_id, .init_net = gre_init_net, }; diff --git a/net/netfilter/nf_conntrack_proto_icmp.c b/net/netfilter/nf_conntrack_proto_icmp.c index 036670b38282..43c7e1a217b9 100644 --- a/net/netfilter/nf_conntrack_proto_icmp.c +++ b/net/netfilter/nf_conntrack_proto_icmp.c @@ -273,7 +273,7 @@ static unsigned int icmp_nlattr_tuple_size(void) } #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT #include #include @@ -313,7 +313,7 @@ static const struct nla_policy icmp_timeout_nla_policy[CTA_TIMEOUT_ICMP_MAX+1] = { [CTA_TIMEOUT_ICMP_TIMEOUT] = { .type = NLA_U32 }, }; -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ #ifdef CONFIG_SYSCTL static struct ctl_table icmp_sysctl_table[] = { @@ -374,7 +374,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp = .nlattr_to_tuple = icmp_nlattr_to_tuple, .nla_policy = icmp_nla_policy, #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = icmp_timeout_nlattr_to_obj, .obj_to_nlattr = icmp_timeout_obj_to_nlattr, @@ -382,7 +382,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp = .obj_size = sizeof(unsigned int), .nla_policy = icmp_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .init_net = icmp_init_net, .get_net_proto = icmp_get_net_proto, }; diff --git a/net/netfilter/nf_conntrack_proto_icmpv6.c b/net/netfilter/nf_conntrack_proto_icmpv6.c index bed07b998a10..97e40f77d678 100644 --- a/net/netfilter/nf_conntrack_proto_icmpv6.c +++ b/net/netfilter/nf_conntrack_proto_icmpv6.c @@ -274,7 +274,7 @@ static unsigned int icmpv6_nlattr_tuple_size(void) } #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT #include #include @@ -314,7 +314,7 @@ static const struct nla_policy icmpv6_timeout_nla_policy[CTA_TIMEOUT_ICMPV6_MAX+1] = { [CTA_TIMEOUT_ICMPV6_TIMEOUT] = { .type = NLA_U32 }, }; -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ #ifdef CONFIG_SYSCTL static struct ctl_table icmpv6_sysctl_table[] = { @@ -373,7 +373,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 = .nlattr_to_tuple = icmpv6_nlattr_to_tuple, .nla_policy = icmpv6_nla_policy, #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = icmpv6_timeout_nlattr_to_obj, .obj_to_nlattr = icmpv6_timeout_obj_to_nlattr, @@ -381,7 +381,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 = .obj_size = sizeof(unsigned int), .nla_policy = icmpv6_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .init_net = icmpv6_init_net, .get_net_proto = icmpv6_get_net_proto, }; diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c index 5eddfd32b852..e4d738d34cd0 100644 --- a/net/netfilter/nf_conntrack_proto_sctp.c +++ b/net/netfilter/nf_conntrack_proto_sctp.c @@ -591,7 +591,7 @@ static int nlattr_to_sctp(struct nlattr *cda[], struct nf_conn *ct) } #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT #include #include @@ -646,7 +646,7 @@ sctp_timeout_nla_policy[CTA_TIMEOUT_SCTP_MAX+1] = { [CTA_TIMEOUT_SCTP_HEARTBEAT_SENT] = { .type = NLA_U32 }, [CTA_TIMEOUT_SCTP_HEARTBEAT_ACKED] = { .type = NLA_U32 }, }; -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ #ifdef CONFIG_SYSCTL @@ -780,7 +780,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 = { .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, .nla_policy = nf_ct_port_nla_policy, #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = sctp_timeout_nlattr_to_obj, .obj_to_nlattr = sctp_timeout_obj_to_nlattr, @@ -788,7 +788,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 = { .obj_size = sizeof(unsigned int) * SCTP_CONNTRACK_MAX, .nla_policy = sctp_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .init_net = sctp_init_net, .get_net_proto = sctp_get_net_proto, }; @@ -813,7 +813,8 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 = { .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size, .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, .nla_policy = nf_ct_port_nla_policy, -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#endif +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = sctp_timeout_nlattr_to_obj, .obj_to_nlattr = sctp_timeout_obj_to_nlattr, @@ -821,8 +822,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 = { .obj_size = sizeof(unsigned int) * SCTP_CONNTRACK_MAX, .nla_policy = sctp_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ -#endif +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .init_net = sctp_init_net, .get_net_proto = sctp_get_net_proto, }; diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index 3e2dc56a96c3..b4bdf9eda7b7 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -1279,7 +1279,7 @@ static unsigned int tcp_nlattr_tuple_size(void) } #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT #include #include @@ -1394,7 +1394,7 @@ static const struct nla_policy tcp_timeout_nla_policy[CTA_TIMEOUT_TCP_MAX+1] = { [CTA_TIMEOUT_TCP_RETRANS] = { .type = NLA_U32 }, [CTA_TIMEOUT_TCP_UNACK] = { .type = NLA_U32 }, }; -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ #ifdef CONFIG_SYSCTL static struct ctl_table tcp_sysctl_table[] = { @@ -1558,7 +1558,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 = .nlattr_size = TCP_NLATTR_SIZE, .nla_policy = nf_ct_port_nla_policy, #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = tcp_timeout_nlattr_to_obj, .obj_to_nlattr = tcp_timeout_obj_to_nlattr, @@ -1567,7 +1567,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 = TCP_CONNTRACK_TIMEOUT_MAX, .nla_policy = tcp_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .init_net = tcp_init_net, .get_net_proto = tcp_get_net_proto, }; @@ -1593,7 +1593,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6 = .nlattr_tuple_size = tcp_nlattr_tuple_size, .nla_policy = nf_ct_port_nla_policy, #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = tcp_timeout_nlattr_to_obj, .obj_to_nlattr = tcp_timeout_obj_to_nlattr, @@ -1602,7 +1602,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6 = TCP_CONNTRACK_TIMEOUT_MAX, .nla_policy = tcp_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .init_net = tcp_init_net, .get_net_proto = tcp_get_net_proto, }; diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c index 9272a2c525a8..3065fb8ef91b 100644 --- a/net/netfilter/nf_conntrack_proto_udp.c +++ b/net/netfilter/nf_conntrack_proto_udp.c @@ -171,7 +171,7 @@ static int udp_error(struct net *net, struct nf_conn *tmpl, struct sk_buff *skb, return NF_ACCEPT; } -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT #include #include @@ -221,7 +221,7 @@ udp_timeout_nla_policy[CTA_TIMEOUT_UDP_MAX+1] = { [CTA_TIMEOUT_UDP_UNREPLIED] = { .type = NLA_U32 }, [CTA_TIMEOUT_UDP_REPLIED] = { .type = NLA_U32 }, }; -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ #ifdef CONFIG_SYSCTL static struct ctl_table udp_sysctl_table[] = { @@ -292,7 +292,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 = .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size, .nla_policy = nf_ct_port_nla_policy, #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = udp_timeout_nlattr_to_obj, .obj_to_nlattr = udp_timeout_obj_to_nlattr, @@ -300,7 +300,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 = .obj_size = sizeof(unsigned int) * CTA_TIMEOUT_UDP_MAX, .nla_policy = udp_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .init_net = udp_init_net, .get_net_proto = udp_get_net_proto, }; @@ -321,7 +321,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite4 = .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size, .nla_policy = nf_ct_port_nla_policy, #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = udp_timeout_nlattr_to_obj, .obj_to_nlattr = udp_timeout_obj_to_nlattr, @@ -329,7 +329,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite4 = .obj_size = sizeof(unsigned int) * CTA_TIMEOUT_UDP_MAX, .nla_policy = udp_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .init_net = udp_init_net, .get_net_proto = udp_get_net_proto, }; @@ -350,7 +350,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6 = .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size, .nla_policy = nf_ct_port_nla_policy, #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = udp_timeout_nlattr_to_obj, .obj_to_nlattr = udp_timeout_obj_to_nlattr, @@ -358,7 +358,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6 = .obj_size = sizeof(unsigned int) * CTA_TIMEOUT_UDP_MAX, .nla_policy = udp_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .init_net = udp_init_net, .get_net_proto = udp_get_net_proto, }; @@ -379,7 +379,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite6 = .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size, .nla_policy = nf_ct_port_nla_policy, #endif -#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT) +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT .ctnl_timeout = { .nlattr_to_obj = udp_timeout_nlattr_to_obj, .obj_to_nlattr = udp_timeout_obj_to_nlattr, @@ -387,7 +387,7 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite6 = .obj_size = sizeof(unsigned int) * CTA_TIMEOUT_UDP_MAX, .nla_policy = udp_timeout_nla_policy, }, -#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ .init_net = udp_init_net, .get_net_proto = udp_get_net_proto, }; From 99e25d071fca91eb90ffa2f51240547a69137bde Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Mon, 3 Sep 2018 13:53:22 +0200 Subject: [PATCH 0845/1762] netfilter: cttimeout: ctnl_timeout_find_get() returns incorrect pointer to type Compiler did not catch incorrect typing in the rcu hook assignment. % nfct add timeout test-tcp inet tcp established 100 close 10 close_wait 10 % iptables -I OUTPUT -t raw -p tcp -j CT --timeout test-tcp dmesg - xt_CT: Timeout policy `test-tcp' can only be used by L3 protocol number 25000 The CT target bails out with incorrect layer 3 protocol number. Fixes: 6c1fd7dc489d ("netfilter: cttimeout: decouple timeout policy from nfnetlink_cttimeout object") Reported-by: Harsha Sharma Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nfnetlink_cttimeout.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c index d46a236cdf31..a30f8ba4b89a 100644 --- a/net/netfilter/nfnetlink_cttimeout.c +++ b/net/netfilter/nfnetlink_cttimeout.c @@ -489,8 +489,8 @@ err: return err; } -static struct ctnl_timeout * -ctnl_timeout_find_get(struct net *net, const char *name) +static struct nf_ct_timeout *ctnl_timeout_find_get(struct net *net, + const char *name) { struct ctnl_timeout *timeout, *matching = NULL; @@ -509,7 +509,7 @@ ctnl_timeout_find_get(struct net *net, const char *name) break; } err: - return matching; + return matching ? &matching->timeout : NULL; } static void ctnl_timeout_put(struct nf_ct_timeout *t) From ad18d7bf68a3da860ebb62a59c449804a6d237b4 Mon Sep 17 00:00:00 2001 From: Michal 'vorner' Vaner Date: Tue, 4 Sep 2018 13:25:44 +0200 Subject: [PATCH 0846/1762] netfilter: nfnetlink_queue: Solve the NFQUEUE/conntrack clash for NF_REPEAT NF_REPEAT places the packet at the beginning of the iptables chain instead of accepting or rejecting it right away. The packet however will reach the end of the chain and continue to the end of iptables eventually, so it needs the same handling as NF_ACCEPT and NF_DROP. Fixes: 368982cd7d1b ("netfilter: nfnetlink_queue: resolve clash for unconfirmed conntracks") Signed-off-by: Michal 'vorner' Vaner Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nfnetlink_queue.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c index ea4ba551abb2..d33094f4ec41 100644 --- a/net/netfilter/nfnetlink_queue.c +++ b/net/netfilter/nfnetlink_queue.c @@ -233,6 +233,7 @@ static void nfqnl_reinject(struct nf_queue_entry *entry, unsigned int verdict) int err; if (verdict == NF_ACCEPT || + verdict == NF_REPEAT || verdict == NF_STOP) { rcu_read_lock(); ct_hook = rcu_dereference(nf_ct_hook); From 1286df269f498165061e0cf8092ca212545dbb5a Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Wed, 5 Sep 2018 11:41:31 -0700 Subject: [PATCH 0847/1762] netfilter: xt_hashlimit: use s->file instead of s->private After switching to the new procfs API, it is supposed to retrieve the private pointer from PDE_DATA(file_inode(s->file)), s->private is no longer referred. Fixes: 1cd671827290 ("netfilter/x_tables: switch to proc_create_seq_private") Reported-by: Sami Farin Signed-off-by: Cong Wang Acked-by: Christoph Hellwig Tested-by: Sami Farin Signed-off-by: Pablo Neira Ayuso --- net/netfilter/xt_hashlimit.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c index 9b16402f29af..3e7d259e5d8d 100644 --- a/net/netfilter/xt_hashlimit.c +++ b/net/netfilter/xt_hashlimit.c @@ -1057,7 +1057,7 @@ static struct xt_match hashlimit_mt_reg[] __read_mostly = { static void *dl_seq_start(struct seq_file *s, loff_t *pos) __acquires(htable->lock) { - struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->private)); + struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->file)); unsigned int *bucket; spin_lock_bh(&htable->lock); @@ -1074,7 +1074,7 @@ static void *dl_seq_start(struct seq_file *s, loff_t *pos) static void *dl_seq_next(struct seq_file *s, void *v, loff_t *pos) { - struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->private)); + struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->file)); unsigned int *bucket = v; *pos = ++(*bucket); @@ -1088,7 +1088,7 @@ static void *dl_seq_next(struct seq_file *s, void *v, loff_t *pos) static void dl_seq_stop(struct seq_file *s, void *v) __releases(htable->lock) { - struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->private)); + struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->file)); unsigned int *bucket = v; if (!IS_ERR(bucket)) @@ -1130,7 +1130,7 @@ static void dl_seq_print(struct dsthash_ent *ent, u_int8_t family, static int dl_seq_real_show_v2(struct dsthash_ent *ent, u_int8_t family, struct seq_file *s) { - struct xt_hashlimit_htable *ht = PDE_DATA(file_inode(s->private)); + struct xt_hashlimit_htable *ht = PDE_DATA(file_inode(s->file)); spin_lock(&ent->lock); /* recalculate to show accurate numbers */ @@ -1145,7 +1145,7 @@ static int dl_seq_real_show_v2(struct dsthash_ent *ent, u_int8_t family, static int dl_seq_real_show_v1(struct dsthash_ent *ent, u_int8_t family, struct seq_file *s) { - struct xt_hashlimit_htable *ht = PDE_DATA(file_inode(s->private)); + struct xt_hashlimit_htable *ht = PDE_DATA(file_inode(s->file)); spin_lock(&ent->lock); /* recalculate to show accurate numbers */ @@ -1160,7 +1160,7 @@ static int dl_seq_real_show_v1(struct dsthash_ent *ent, u_int8_t family, static int dl_seq_real_show(struct dsthash_ent *ent, u_int8_t family, struct seq_file *s) { - struct xt_hashlimit_htable *ht = PDE_DATA(file_inode(s->private)); + struct xt_hashlimit_htable *ht = PDE_DATA(file_inode(s->file)); spin_lock(&ent->lock); /* recalculate to show accurate numbers */ @@ -1174,7 +1174,7 @@ static int dl_seq_real_show(struct dsthash_ent *ent, u_int8_t family, static int dl_seq_show_v2(struct seq_file *s, void *v) { - struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->private)); + struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->file)); unsigned int *bucket = (unsigned int *)v; struct dsthash_ent *ent; @@ -1188,7 +1188,7 @@ static int dl_seq_show_v2(struct seq_file *s, void *v) static int dl_seq_show_v1(struct seq_file *s, void *v) { - struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->private)); + struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->file)); unsigned int *bucket = v; struct dsthash_ent *ent; @@ -1202,7 +1202,7 @@ static int dl_seq_show_v1(struct seq_file *s, void *v) static int dl_seq_show(struct seq_file *s, void *v) { - struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->private)); + struct xt_hashlimit_htable *htable = PDE_DATA(file_inode(s->file)); unsigned int *bucket = v; struct dsthash_ent *ent; From 200f351e27f014fcbf69b544b0b4b72aeaf45fd3 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 20 Jul 2018 20:17:35 -0700 Subject: [PATCH 0848/1762] arch/hexagon: fix kernel/dma.c build warning Fix build warning in arch/hexagon/kernel/dma.c by casting a void * to unsigned long to match the function parameter type. ../arch/hexagon/kernel/dma.c: In function 'arch_dma_alloc': ../arch/hexagon/kernel/dma.c:51:5: warning: passing argument 2 of 'gen_pool_add' makes integer from pointer without a cast [enabled by default] ../include/linux/genalloc.h:112:19: note: expected 'long unsigned int' but argument is of type 'void *' Signed-off-by: Randy Dunlap Cc: Yoshinori Sato Cc: Rich Felker Cc: linux-sh@vger.kernel.org Patch-mainline: linux-kernel @ 07/20/2018, 20:17 [rkuo@codeaurora.org: fixed architecture name] Signed-off-by: Richard Kuo --- arch/hexagon/kernel/dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c index 77459df34e2e..7ebe7ad19d15 100644 --- a/arch/hexagon/kernel/dma.c +++ b/arch/hexagon/kernel/dma.c @@ -60,7 +60,7 @@ static void *hexagon_dma_alloc_coherent(struct device *dev, size_t size, panic("Can't create %s() memory pool!", __func__); else gen_pool_add(coherent_pool, - pfn_to_virt(max_low_pfn), + (unsigned long)pfn_to_virt(max_low_pfn), hexagon_coherent_pool_size, -1); } From 5c41aaad409c097cf1ef74f2c649fed994744ef5 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 22 Jul 2018 16:03:58 -0700 Subject: [PATCH 0849/1762] hexagon: modify ffs() and fls() to return int Building drivers/mtd/nand/raw/nandsim.c on arch/hexagon/ produces a printk format build warning. This is due to hexagon's ffs() being coded as returning long instead of int. Fix the printk format warning by changing all of hexagon's ffs() and fls() functions to return int instead of long. The variables that they return are already int instead of long. This return type matches the return type in . ../drivers/mtd/nand/raw/nandsim.c: In function 'init_nandsim': ../drivers/mtd/nand/raw/nandsim.c:760:2: warning: format '%u' expects argument of type 'unsigned int', but argument 2 has type 'long int' [-Wformat] There are no ffs() or fls() allmodconfig build errors after making this change. Signed-off-by: Randy Dunlap Cc: Richard Kuo Cc: linux-hexagon@vger.kernel.org Cc: Geert Uytterhoeven Patch-mainline: linux-kernel @ 07/22/2018, 16:03 Signed-off-by: Richard Kuo --- arch/hexagon/include/asm/bitops.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/hexagon/include/asm/bitops.h b/arch/hexagon/include/asm/bitops.h index 5e4a59b3ec1b..2691a1857d20 100644 --- a/arch/hexagon/include/asm/bitops.h +++ b/arch/hexagon/include/asm/bitops.h @@ -211,7 +211,7 @@ static inline long ffz(int x) * This is defined the same way as ffs. * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32. */ -static inline long fls(int x) +static inline int fls(int x) { int r; @@ -232,7 +232,7 @@ static inline long fls(int x) * the libc and compiler builtin ffs routines, therefore * differs in spirit from the above ffz (man ffs). */ -static inline long ffs(int x) +static inline int ffs(int x) { int r; From b463d4e53ca9bdbf227e19b477fbfcdedaa14c84 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Mon, 3 Sep 2018 10:51:51 +0200 Subject: [PATCH 0850/1762] drm/amdgpu: fix amdgpu_mn_unlock() in the CS error path MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Avoid unlocking a lock we never locked. Signed-off-by: Christian König Reviewed-by: Junwei Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index b6e9df11115d..1b5a0a73d770 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -1262,10 +1262,10 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p, error_abort: dma_fence_put(&job->base.s_fence->finished); job->base.s_fence = NULL; + amdgpu_mn_unlock(p->mn); error_unlock: amdgpu_job_free(job); - amdgpu_mn_unlock(p->mn); return r; } From 68ebc13ea40656fddd3803735d621921a2d74a5e Mon Sep 17 00:00:00 2001 From: Tao Zhou Date: Fri, 7 Sep 2018 13:50:31 +0800 Subject: [PATCH 0851/1762] drm/amdgpu: Fix SDMA hang in prt mode v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix SDMA hang in prt mode, clear XNACK_WATERMARK in reg SDMA0_UTCL1_WATERMK to avoid the issue Affected ASICs: VEGA10 VEGA12 RV1 RV2 v2: add reg clear for SDMA1 Signed-off-by: Tao Zhou Tested-by: Yukun Li Reviewed-by: Hawking Zhang Acked-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c index e7ca4623cfb9..7c3b634d8d5f 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c @@ -70,6 +70,7 @@ static const struct soc15_reg_golden golden_settings_sdma_4[] = { SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_IB_CNTL, 0x800f0100, 0x00000100), SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000), SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_PAGE, 0x000003ff, 0x000003c0), + SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_WATERMK, 0xfc000000, 0x00000000), SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_CHICKEN_BITS, 0xfe931f07, 0x02831f07), SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_CLK_CTRL, 0xffffffff, 0x3f000100), SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GFX_IB_CNTL, 0x800f0100, 0x00000100), @@ -81,7 +82,8 @@ static const struct soc15_reg_golden golden_settings_sdma_4[] = { SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC0_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000), SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC1_IB_CNTL, 0x800f0100, 0x00000100), SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC1_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000), - SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_UTCL1_PAGE, 0x000003ff, 0x000003c0) + SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_UTCL1_PAGE, 0x000003ff, 0x000003c0), + SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_UTCL1_WATERMK, 0xfc000000, 0x00000000) }; static const struct soc15_reg_golden golden_settings_sdma_vg10[] = { @@ -109,7 +111,8 @@ static const struct soc15_reg_golden golden_settings_sdma_4_1[] = SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC0_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000), SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_IB_CNTL, 0x800f0111, 0x00000100), SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000), - SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_PAGE, 0x000003ff, 0x000003c0) + SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_PAGE, 0x000003ff, 0x000003c0), + SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_WATERMK, 0xfc000000, 0x00000000) }; static const struct soc15_reg_golden golden_settings_sdma_4_2[] = From 3a74987b24279d242d17f522f8435f1942a3c948 Mon Sep 17 00:00:00 2001 From: Emily Deng Date: Mon, 10 Sep 2018 17:51:31 +0800 Subject: [PATCH 0852/1762] drm/amdgpu: move PSP init prior to IH in gpu reset MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit since we use PSP to program IH regs now Signed-off-by: Monk Liu Acked-by: Christian König Reviewed-by: Huang Rui Signed-off-by: Emily Deng Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 8ab5ccbc14ac..39bf2ce548c6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2063,6 +2063,7 @@ static int amdgpu_device_ip_reinit_early_sriov(struct amdgpu_device *adev) static enum amd_ip_block_type ip_order[] = { AMD_IP_BLOCK_TYPE_GMC, AMD_IP_BLOCK_TYPE_COMMON, + AMD_IP_BLOCK_TYPE_PSP, AMD_IP_BLOCK_TYPE_IH, }; @@ -2093,7 +2094,6 @@ static int amdgpu_device_ip_reinit_late_sriov(struct amdgpu_device *adev) static enum amd_ip_block_type ip_order[] = { AMD_IP_BLOCK_TYPE_SMC, - AMD_IP_BLOCK_TYPE_PSP, AMD_IP_BLOCK_TYPE_DCE, AMD_IP_BLOCK_TYPE_GFX, AMD_IP_BLOCK_TYPE_SDMA, From a6ae928c25835ca18deb4a527079f169b68ed292 Mon Sep 17 00:00:00 2001 From: Petr Mladek Date: Mon, 10 Sep 2018 15:52:06 +0200 Subject: [PATCH 0853/1762] Revert "printk: make sure to print log on console." This reverts commit 375899cddcbb26881b03cb3fbdcfd600e4e67f4a. The visibility of early messages did not longer take into account "quiet", "debug", and "loglevel" early parameters. It would be possible to invalidate and recompute LOG_NOCONS flag for the affected messages. But it would be hairy. Instead this patch just reverts the problematic commit. We could come up with a better solution for the original problem. For example, we could simplify the logic and just mark messages that should always be visible or always invisible on the console. Also this patch reverts the related build fix commit ffaa619af1b06 ("printk: Fix warning about unused suppress_message_printing"). Finally, this patch does not put back the unused LOG_NOCONS flag. Link: http://lkml.kernel.org/r/20180910145747.emvfzv4mzlk5dfqk@pathway.suse.cz Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H . Peter Anvin" Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org Cc: Steven Rostedt Cc: Maninder Singh Reported-by: Hans de Goede Acked-by: Hans de Goede Acked-by: Sergey Senozhatsky Signed-off-by: Petr Mladek --- kernel/printk/printk.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index 9a63aeeaaf5d..e30e5023511b 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -349,7 +349,6 @@ static int console_msg_format = MSG_FORMAT_DEFAULT; */ enum log_flags { - LOG_NOCONS = 1, /* suppress print, do not print to console */ LOG_NEWLINE = 2, /* text ended with a newline */ LOG_PREFIX = 4, /* text started with a prefix */ LOG_CONT = 8, /* text is a fragment of a continuation line */ @@ -1879,9 +1878,6 @@ int vprintk_store(int facility, int level, if (dict) lflags |= LOG_PREFIX|LOG_NEWLINE; - if (suppress_message_printing(level)) - lflags |= LOG_NOCONS; - return log_output(facility, level, lflags, dict, dictlen, text, text_len); } @@ -2030,6 +2026,7 @@ static void call_console_drivers(const char *ext_text, size_t ext_len, const char *text, size_t len) {} static size_t msg_print_text(const struct printk_log *msg, bool syslog, char *buf, size_t size) { return 0; } +static bool suppress_message_printing(int level) { return false; } #endif /* CONFIG_PRINTK */ @@ -2365,10 +2362,11 @@ skip: break; msg = log_from_idx(console_idx); - if (msg->flags & LOG_NOCONS) { + if (suppress_message_printing(msg->level)) { /* - * Skip record if !ignore_loglevel, and - * record has level above the console loglevel. + * Skip record we have buffered and already printed + * directly to the console when we received it, and + * record that has level above the console loglevel. */ console_idx = log_next(console_idx); console_seq++; From 9e1437937807b0122e8da1ca8765be2adca9aee6 Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Tue, 11 Sep 2018 10:31:15 +0200 Subject: [PATCH 0854/1762] xfrm: Fix NULL pointer dereference when skb_dst_force clears the dst_entry. Since commit 222d7dbd258d ("net: prevent dst uses after free") skb_dst_force() might clear the dst_entry attached to the skb. The xfrm code don't expect this to happen, so we crash with a NULL pointer dereference in this case. Fix it by checking skb_dst(skb) for NULL after skb_dst_force() and drop the packet in cast the dst_entry was cleared. Fixes: 222d7dbd258d ("net: prevent dst uses after free") Reported-by: Tobias Hommel Reported-by: Kristian Evensen Reported-by: Wolfgang Walter Signed-off-by: Steffen Klassert --- net/xfrm/xfrm_output.c | 4 ++++ net/xfrm/xfrm_policy.c | 4 ++++ 2 files changed, 8 insertions(+) diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c index 89b178a78dc7..36d15a38ce5e 100644 --- a/net/xfrm/xfrm_output.c +++ b/net/xfrm/xfrm_output.c @@ -101,6 +101,10 @@ static int xfrm_output_one(struct sk_buff *skb, int err) spin_unlock_bh(&x->lock); skb_dst_force(skb); + if (!skb_dst(skb)) { + XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTERROR); + goto error_nolock; + } if (xfrm_offload(skb)) { x->type_offload->encap(x, skb); diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 7c5e8978aeaa..626e0f4d1749 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -2548,6 +2548,10 @@ int __xfrm_route_forward(struct sk_buff *skb, unsigned short family) } skb_dst_force(skb); + if (!skb_dst(skb)) { + XFRM_INC_STATS(net, LINUX_MIB_XFRMFWDHDRERROR); + return 0; + } dst = xfrm_lookup(net, skb_dst(skb), &fl, NULL, XFRM_LOOKUP_QUEUE); if (IS_ERR(dst)) { From 13aceef06adfaf93d52e01e28a8bc8a0ad471d83 Mon Sep 17 00:00:00 2001 From: Miguel Ojeda Date: Sun, 9 Sep 2018 17:47:31 +0200 Subject: [PATCH 0855/1762] arm64: jump_label.h: use asm_volatile_goto macro instead of "asm goto" All other uses of "asm goto" go through asm_volatile_goto, which avoids a miscompile when using GCC < 4.8.2. Replace our open-coded "asm goto" statements with the asm_volatile_goto macro to avoid issues with older toolchains. Cc: Catalin Marinas Reviewed-by: Nick Desaulniers Signed-off-by: Miguel Ojeda Signed-off-by: Will Deacon --- arch/arm64/include/asm/jump_label.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/include/asm/jump_label.h b/arch/arm64/include/asm/jump_label.h index 1b5e0e843c3a..7e2b3e360086 100644 --- a/arch/arm64/include/asm/jump_label.h +++ b/arch/arm64/include/asm/jump_label.h @@ -28,7 +28,7 @@ static __always_inline bool arch_static_branch(struct static_key *key, bool branch) { - asm goto("1: nop\n\t" + asm_volatile_goto("1: nop\n\t" ".pushsection __jump_table, \"aw\"\n\t" ".align 3\n\t" ".quad 1b, %l[l_yes], %c0\n\t" @@ -42,7 +42,7 @@ l_yes: static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch) { - asm goto("1: b %l[l_yes]\n\t" + asm_volatile_goto("1: b %l[l_yes]\n\t" ".pushsection __jump_table, \"aw\"\n\t" ".align 3\n\t" ".quad 1b, %l[l_yes], %c0\n\t" From 84c57dbd3c480fb2730c393a2cef994ddb4f42cc Mon Sep 17 00:00:00 2001 From: James Morse Date: Mon, 10 Sep 2018 15:20:54 +0100 Subject: [PATCH 0856/1762] arm64: kernel: arch_crash_save_vmcoreinfo() should depend on CONFIG_CRASH_CORE Since commit 23c85094fe18 ("proc/kcore: add vmcoreinfo note to /proc/kcore") the kernel has exported the vmcoreinfo PT_NOTE on /proc/kcore as well as /proc/vmcore. arm64 only exposes it's additional arch information via arch_crash_save_vmcoreinfo() if built with CONFIG_KEXEC, as kdump was previously the only user of vmcoreinfo. Move this weak function to a separate file that is built at the same time as its caller in kernel/crash_core.c. This ensures values like 'kimage_voffset' are always present in the vmcoreinfo PT_NOTE. CC: AKASHI Takahiro Reviewed-by: Bhupesh Sharma Signed-off-by: James Morse Signed-off-by: Will Deacon --- arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/crash_core.c | 19 +++++++++++++++++++ arch/arm64/kernel/machine_kexec.c | 11 ----------- 3 files changed, 20 insertions(+), 11 deletions(-) create mode 100644 arch/arm64/kernel/crash_core.c diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile index 95ac7374d723..4c8b13bede80 100644 --- a/arch/arm64/kernel/Makefile +++ b/arch/arm64/kernel/Makefile @@ -54,6 +54,7 @@ arm64-obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o \ arm64-obj-$(CONFIG_ARM64_RELOC_TEST) += arm64-reloc-test.o arm64-reloc-test-y := reloc_test_core.o reloc_test_syms.o arm64-obj-$(CONFIG_CRASH_DUMP) += crash_dump.o +arm64-obj-$(CONFIG_CRASH_CORE) += crash_core.o arm64-obj-$(CONFIG_ARM_SDE_INTERFACE) += sdei.o arm64-obj-$(CONFIG_ARM64_SSBD) += ssbd.o diff --git a/arch/arm64/kernel/crash_core.c b/arch/arm64/kernel/crash_core.c new file mode 100644 index 000000000000..ca4c3e12d8c5 --- /dev/null +++ b/arch/arm64/kernel/crash_core.c @@ -0,0 +1,19 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) Linaro. + * Copyright (C) Huawei Futurewei Technologies. + */ + +#include +#include + +void arch_crash_save_vmcoreinfo(void) +{ + VMCOREINFO_NUMBER(VA_BITS); + /* Please note VMCOREINFO_NUMBER() uses "%d", not "%x" */ + vmcoreinfo_append_str("NUMBER(kimage_voffset)=0x%llx\n", + kimage_voffset); + vmcoreinfo_append_str("NUMBER(PHYS_OFFSET)=0x%llx\n", + PHYS_OFFSET); + vmcoreinfo_append_str("KERNELOFFSET=%lx\n", kaslr_offset()); +} diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c index f6a5c6bc1434..922add8adb74 100644 --- a/arch/arm64/kernel/machine_kexec.c +++ b/arch/arm64/kernel/machine_kexec.c @@ -358,14 +358,3 @@ void crash_free_reserved_phys_range(unsigned long begin, unsigned long end) } } #endif /* CONFIG_HIBERNATION */ - -void arch_crash_save_vmcoreinfo(void) -{ - VMCOREINFO_NUMBER(VA_BITS); - /* Please note VMCOREINFO_NUMBER() uses "%d", not "%x" */ - vmcoreinfo_append_str("NUMBER(kimage_voffset)=0x%llx\n", - kimage_voffset); - vmcoreinfo_append_str("NUMBER(PHYS_OFFSET)=0x%llx\n", - PHYS_OFFSET); - vmcoreinfo_append_str("KERNELOFFSET=%lx\n", kaslr_offset()); -} From ae7d1247d8673ebfd686b17e759d4be391165368 Mon Sep 17 00:00:00 2001 From: Rohit kumar Date: Tue, 11 Sep 2018 14:59:21 +0530 Subject: [PATCH 0857/1762] ASoC: Fix UBSAN warning at snd_soc_get/put_volsw_sx() In functions snd_soc_get_volsw_sx() or snd_soc_put_volsw_sx(), if the result of (min + max) is negative, then fls() returns signed integer with value as 32. This leads to signed integer overflow as complete operation is considered as signed integer. UBSAN: Undefined behaviour in sound/soc/soc-ops.c:382:50 signed integer overflow: -2147483648 - 1 cannot be represented in type 'int' Call trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xec/0x158 lib/dump_stack.c:51 [] ubsan_epilogue+0x18/0x50 lib/ubsan.c:164 [] handle_overflow+0xf8/0x130 lib/ubsan.c:195 [] __ubsan_handle_sub_overflow+0x34/0x44 lib/ubsan.c:211 [] snd_soc_get_volsw_sx+0x1a8/0x1f8 sound/soc/soc-ops.c:382 Typecast the operation to unsigned int to fix the issue. Signed-off-by: Rohit kumar Signed-off-by: Mark Brown --- sound/soc/soc-ops.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c index 592efb370c44..f4dc3d445aae 100644 --- a/sound/soc/soc-ops.c +++ b/sound/soc/soc-ops.c @@ -373,7 +373,7 @@ int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, unsigned int rshift = mc->rshift; int max = mc->max; int min = mc->min; - unsigned int mask = (1 << (fls(min + max) - 1)) - 1; + unsigned int mask = (1U << (fls(min + max) - 1)) - 1; unsigned int val; int ret; @@ -418,7 +418,7 @@ int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, unsigned int rshift = mc->rshift; int max = mc->max; int min = mc->min; - unsigned int mask = (1 << (fls(min + max) - 1)) - 1; + unsigned int mask = (1U << (fls(min + max) - 1)) - 1; int err = 0; unsigned int val, val_mask, val2 = 0; From 94f14e4728125f979629b2b020d31cd718191626 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Tue, 11 Sep 2018 14:10:12 +0300 Subject: [PATCH 0858/1762] Bluetooth: SMP: Fix trying to use non-existent local OOB data A remote device may claim that it has received our OOB data, even though we never geneated it. Add a new flag to track whether we actually have OOB data, and ignore the remote peer's flag if haven't generated OOB data. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- net/bluetooth/smp.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index ae91e2d40056..9752879fdd3a 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -83,6 +83,7 @@ enum { struct smp_dev { /* Secure Connections OOB data */ + bool local_oob; u8 local_pk[64]; u8 local_rand[16]; bool debug_key; @@ -599,6 +600,8 @@ int smp_generate_oob(struct hci_dev *hdev, u8 hash[16], u8 rand[16]) memcpy(rand, smp->local_rand, 16); + smp->local_oob = true; + return 0; } @@ -1785,7 +1788,7 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb) * successfully received our local OOB data - therefore set the * flag to indicate that local OOB is in use. */ - if (req->oob_flag == SMP_OOB_PRESENT) + if (req->oob_flag == SMP_OOB_PRESENT && SMP_DEV(hdev)->local_oob) set_bit(SMP_FLAG_LOCAL_OOB, &smp->flags); /* SMP over BR/EDR requires special treatment */ @@ -1967,7 +1970,7 @@ static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb) * successfully received our local OOB data - therefore set the * flag to indicate that local OOB is in use. */ - if (rsp->oob_flag == SMP_OOB_PRESENT) + if (rsp->oob_flag == SMP_OOB_PRESENT && SMP_DEV(hdev)->local_oob) set_bit(SMP_FLAG_LOCAL_OOB, &smp->flags); smp->prsp[0] = SMP_CMD_PAIRING_RSP; @@ -3230,6 +3233,7 @@ static struct l2cap_chan *smp_add_cid(struct hci_dev *hdev, u16 cid) return ERR_CAST(tfm_ecdh); } + smp->local_oob = false; smp->tfm_aes = tfm_aes; smp->tfm_cmac = tfm_cmac; smp->tfm_ecdh = tfm_ecdh; From 4ba5175f2c10affd412fa41855cecda02b66cd71 Mon Sep 17 00:00:00 2001 From: Matias Karhumaa Date: Tue, 11 Sep 2018 14:10:13 +0300 Subject: [PATCH 0859/1762] Bluetooth: Use correct tfm to generate OOB data In case local OOB data was generated and other device initiated pairing claiming that it has got OOB data, following crash occurred: [ 222.847853] general protection fault: 0000 [#1] SMP PTI [ 222.848025] CPU: 1 PID: 42 Comm: kworker/u5:0 Tainted: G C 4.18.0-custom #4 [ 222.848158] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 222.848307] Workqueue: hci0 hci_rx_work [bluetooth] [ 222.848416] RIP: 0010:compute_ecdh_secret+0x5a/0x270 [bluetooth] [ 222.848540] Code: 0c af f5 48 8b 3d 46 de f0 f6 ba 40 00 00 00 be c0 00 60 00 e8 b7 7b c5 f5 48 85 c0 0f 84 ea 01 00 00 48 89 c3 e8 16 0c af f5 <49> 8b 47 38 be c0 00 60 00 8b 78 f8 48 83 c7 48 e8 51 84 c5 f5 48 [ 222.848914] RSP: 0018:ffffb1664087fbc0 EFLAGS: 00010293 [ 222.849021] RAX: ffff8a5750d7dc00 RBX: ffff8a5671096780 RCX: ffffffffc08bc32a [ 222.849111] RDX: 0000000000000000 RSI: 00000000006000c0 RDI: ffff8a5752003800 [ 222.849192] RBP: ffffb1664087fc60 R08: ffff8a57525280a0 R09: ffff8a5752003800 [ 222.849269] R10: ffffb1664087fc70 R11: 0000000000000093 R12: ffff8a5674396e00 [ 222.849350] R13: ffff8a574c2e79aa R14: ffff8a574c2e796a R15: 020e0e100d010101 [ 222.849429] FS: 0000000000000000(0000) GS:ffff8a5752500000(0000) knlGS:0000000000000000 [ 222.849518] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 222.849586] CR2: 000055856016a038 CR3: 0000000110d2c005 CR4: 00000000000606e0 [ 222.849671] Call Trace: [ 222.849745] ? sc_send_public_key+0x110/0x2a0 [bluetooth] [ 222.849825] ? sc_send_public_key+0x115/0x2a0 [bluetooth] [ 222.849925] smp_recv_cb+0x959/0x2490 [bluetooth] [ 222.850023] ? _cond_resched+0x19/0x40 [ 222.850105] ? mutex_lock+0x12/0x40 [ 222.850202] l2cap_recv_frame+0x109d/0x3420 [bluetooth] [ 222.850315] ? l2cap_recv_frame+0x109d/0x3420 [bluetooth] [ 222.850426] ? __switch_to_asm+0x34/0x70 [ 222.850515] ? __switch_to_asm+0x40/0x70 [ 222.850625] ? __switch_to_asm+0x34/0x70 [ 222.850724] ? __switch_to_asm+0x40/0x70 [ 222.850786] ? __switch_to_asm+0x34/0x70 [ 222.850846] ? __switch_to_asm+0x40/0x70 [ 222.852581] ? __switch_to_asm+0x34/0x70 [ 222.854976] ? __switch_to_asm+0x40/0x70 [ 222.857475] ? __switch_to_asm+0x40/0x70 [ 222.859775] ? __switch_to_asm+0x34/0x70 [ 222.861218] ? __switch_to_asm+0x40/0x70 [ 222.862327] ? __switch_to_asm+0x34/0x70 [ 222.863758] l2cap_recv_acldata+0x266/0x3c0 [bluetooth] [ 222.865122] hci_rx_work+0x1c9/0x430 [bluetooth] [ 222.867144] process_one_work+0x210/0x4c0 [ 222.868248] worker_thread+0x41/0x4d0 [ 222.869420] kthread+0x141/0x160 [ 222.870694] ? process_one_work+0x4c0/0x4c0 [ 222.871668] ? kthread_create_worker_on_cpu+0x90/0x90 [ 222.872896] ret_from_fork+0x35/0x40 [ 222.874132] Modules linked in: algif_hash algif_skcipher af_alg rfcomm bnep btusb btrtl btbcm btintel snd_intel8x0 cmac intel_rapl_perf vboxvideo(C) snd_ac97_codec bluetooth ac97_bus joydev ttm snd_pcm ecdh_generic drm_kms_helper snd_timer snd input_leds drm serio_raw fb_sys_fops soundcore syscopyarea sysfillrect sysimgblt mac_hid sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid hid crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd cryptd glue_helper ahci psmouse libahci i2c_piix4 video e1000 pata_acpi [ 222.883153] fbcon_switch: detected unhandled fb_set_par error, error code -16 [ 222.886774] fbcon_switch: detected unhandled fb_set_par error, error code -16 [ 222.890503] ---[ end trace 6504aa7a777b5316 ]--- [ 222.890541] RIP: 0010:compute_ecdh_secret+0x5a/0x270 [bluetooth] [ 222.890551] Code: 0c af f5 48 8b 3d 46 de f0 f6 ba 40 00 00 00 be c0 00 60 00 e8 b7 7b c5 f5 48 85 c0 0f 84 ea 01 00 00 48 89 c3 e8 16 0c af f5 <49> 8b 47 38 be c0 00 60 00 8b 78 f8 48 83 c7 48 e8 51 84 c5 f5 48 [ 222.890555] RSP: 0018:ffffb1664087fbc0 EFLAGS: 00010293 [ 222.890561] RAX: ffff8a5750d7dc00 RBX: ffff8a5671096780 RCX: ffffffffc08bc32a [ 222.890565] RDX: 0000000000000000 RSI: 00000000006000c0 RDI: ffff8a5752003800 [ 222.890571] RBP: ffffb1664087fc60 R08: ffff8a57525280a0 R09: ffff8a5752003800 [ 222.890576] R10: ffffb1664087fc70 R11: 0000000000000093 R12: ffff8a5674396e00 [ 222.890581] R13: ffff8a574c2e79aa R14: ffff8a574c2e796a R15: 020e0e100d010101 [ 222.890586] FS: 0000000000000000(0000) GS:ffff8a5752500000(0000) knlGS:0000000000000000 [ 222.890591] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 222.890594] CR2: 000055856016a038 CR3: 0000000110d2c005 CR4: 00000000000606e0 This commit fixes a bug where invalid pointer to crypto tfm was used for SMP SC ECDH calculation when OOB was in use. Solution is to use same crypto tfm than when generating OOB material on generate_oob() function. This bug was introduced in commit c0153b0b901a ("Bluetooth: let the crypto subsystem generate the ecc privkey"). Bug was found by fuzzing kernel SMP implementation using Synopsys Defensics. Signed-off-by: Matias Karhumaa Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- net/bluetooth/smp.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 9752879fdd3a..3a7b0773536b 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -2700,7 +2700,13 @@ static int smp_cmd_public_key(struct l2cap_conn *conn, struct sk_buff *skb) * key was set/generated. */ if (test_bit(SMP_FLAG_LOCAL_OOB, &smp->flags)) { - struct smp_dev *smp_dev = chan->data; + struct l2cap_chan *hchan = hdev->smp_data; + struct smp_dev *smp_dev; + + if (!hchan || !hchan->data) + return SMP_UNSPECIFIED; + + smp_dev = hchan->data; tfm_ecdh = smp_dev->tfm_ecdh; } else { From e6a57d22f787e73635ce0d29eef0abb77928b3e9 Mon Sep 17 00:00:00 2001 From: Hermes Zhang Date: Tue, 28 Aug 2018 09:48:30 +0800 Subject: [PATCH 0860/1762] Bluetooth: hci_ldisc: Free rw_semaphore on close The percpu_rw_semaphore is not currently freed, and this leads to a crash when the stale rcu callback is invoked. DEBUG_OBJECTS detects this. ODEBUG: free active (active state 1) object type: rcu_head hint: (null) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 2024 at debug_print_object+0xac/0xc8 PC is at debug_print_object+0xac/0xc8 LR is at debug_print_object+0xac/0xc8 Call trace: [] debug_print_object+0xac/0xc8 [] debug_check_no_obj_freed+0x1e8/0x228 [] kfree+0x1cc/0x250 [] hci_uart_tty_close+0x54/0x108 [] tty_ldisc_close.isra.1+0x40/0x58 [] tty_ldisc_kill+0x1c/0x40 [] tty_ldisc_release+0x94/0x170 [] tty_release_struct+0x1c/0x58 [] tty_release+0x3b0/0x490 [] __fput+0x88/0x1d0 [] ____fput+0xc/0x18 [] task_work_run+0x9c/0xc0 [] do_exit+0x24c/0x8a0 [] do_group_exit+0x38/0xa0 [] __wake_up_parent+0x0/0x28 [] el0_svc_naked+0x34/0x38 ---[ end trace bfe08cbd89098cdf ]--- Signed-off-by: Hermes Zhang Signed-off-by: Marcel Holtmann --- drivers/bluetooth/hci_ldisc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c index 963bb0309e25..ea6238ed5c0e 100644 --- a/drivers/bluetooth/hci_ldisc.c +++ b/drivers/bluetooth/hci_ldisc.c @@ -543,6 +543,8 @@ static void hci_uart_tty_close(struct tty_struct *tty) } clear_bit(HCI_UART_PROTO_SET, &hu->flags); + percpu_free_rwsem(&hu->proto_lock); + kfree(hu); } From c3f00182a83b590655cb68b43b9dcc6cdd05316a Mon Sep 17 00:00:00 2001 From: Tyrel Datwyler Date: Thu, 6 Sep 2018 14:16:53 -0500 Subject: [PATCH 0861/1762] MAINTAINERS: Add entries for PPC64 RPA PCI hotplug drivers Add myself as maintainer of the IBM RPA hotplug modules in the drivers/pci/hotplug directory. These modules provide kernel interfaces for support of Dynamic Logical Partitioning (DLPAR) of Logical and Physical IO slots, and hotplug of physical PCI slots of a PHB on RPA-compliant ppc64 platforms (pseries). Signed-off-by: Tyrel Datwyler Signed-off-by: Bjorn Helgaas --- MAINTAINERS | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index a5b256b25905..3f3ed8fcb202 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7015,6 +7015,20 @@ F: drivers/crypto/vmx/aes* F: drivers/crypto/vmx/ghash* F: drivers/crypto/vmx/ppc-xlate.pl +IBM Power PCI Hotplug Driver for RPA-compliant PPC64 platform +M: Tyrel Datwyler +L: linux-pci@vger.kernel.org +L: linuxppc-dev@lists.ozlabs.org +S: Supported +F: drivers/pci/hotplug/rpaphp* + +IBM Power IO DLPAR Driver for RPA-compliant PPC64 platform +M: Tyrel Datwyler +L: linux-pci@vger.kernel.org +L: linuxppc-dev@lists.ozlabs.org +S: Supported +F: drivers/pci/hotplug/rpadlpar* + IBM ServeRAID RAID DRIVER S: Orphan F: drivers/scsi/ips.* From f30cf498b4277dcb20514f3f1daa89c2281f3395 Mon Sep 17 00:00:00 2001 From: Joao Pinto Date: Tue, 11 Sep 2018 13:06:30 +0100 Subject: [PATCH 0862/1762] MAINTAINERS: Add Gustavo Pimentel as DesignWare PCI maintainer Currently I am managing the Synopsys drivers & tools team (full-time) and so I am passing the pcie-designware maintenance to Gustavo. Signed-off-by: Joao Pinto Signed-off-by: Bjorn Helgaas CC: Gustavo Pimentel CC: Jingoo Han --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 3f3ed8fcb202..7e10ba65bfe4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11167,7 +11167,7 @@ F: drivers/pci/controller/dwc/pci-exynos.c PCI DRIVER FOR SYNOPSYS DESIGNWARE M: Jingoo Han -M: Joao Pinto +M: Gustavo Pimentel L: linux-pci@vger.kernel.org S: Maintained F: Documentation/devicetree/bindings/pci/designware-pcie.txt From 50ca031b51106b1b46162d4e9ecccb7edc95682f Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Wed, 5 Sep 2018 14:09:54 +0300 Subject: [PATCH 0863/1762] Revert "PCI: Add ACS quirk for Intel 300 series" This reverts f154a718e6cc ("PCI: Add ACS quirk for Intel 300 series"). It turns out that erratum "PCH PCIe* Controller Root Port (ACSCTLR) Appear As Read Only" has been fixed in 300 series chipsets, even though the datasheet [1] claims otherwise. To make ACS work properly on 300 series root ports, revert the faulty commit. [1] https://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/300-series-c240-series-chipset-pch-spec-update.pdf Fixes: f154a718e6cc ("PCI: Add ACS quirk for Intel 300 series") Signed-off-by: Mika Westerberg Signed-off-by: Bjorn Helgaas Cc: stable@vger.kernel.org # v4.18+ --- drivers/pci/quirks.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index ef7143a274e0..6bc27b7fd452 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4355,11 +4355,6 @@ static int pci_quirk_qcom_rp_acs(struct pci_dev *dev, u16 acs_flags) * * 0x9d10-0x9d1b PCI Express Root port #{1-12} * - * The 300 series chipset suffers from the same bug so include those root - * ports here as well. - * - * 0xa32c-0xa343 PCI Express Root port #{0-24} - * * [1] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-2.html * [2] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-1.html * [3] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-spec-update.html @@ -4377,7 +4372,6 @@ static bool pci_quirk_intel_spt_pch_acs_match(struct pci_dev *dev) case 0xa110 ... 0xa11f: case 0xa167 ... 0xa16a: /* Sunrise Point */ case 0xa290 ... 0xa29f: case 0xa2e7 ... 0xa2ee: /* Union Point */ case 0x9d10 ... 0x9d1b: /* 7th & 8th Gen Mobile */ - case 0xa32c ... 0xa343: /* 300 series */ return true; } From 46feb6b495f7628a6dbf36c4e6d80faf378372d4 Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Thu, 16 Aug 2018 14:06:46 -0500 Subject: [PATCH 0864/1762] switchtec: Fix Spectre v1 vulnerability p.port can is indirectly controlled by user-space, hence leading to a potential exploitation of the Spectre variant 1 vulnerability. This issue was detected with the help of Smatch: drivers/pci/switch/switchtec.c:912 ioctl_port_to_pff() warn: potential spectre issue 'pcfg->dsp_pff_inst_id' [r] Fix this by sanitizing p.port before using it to index pcfg->dsp_pff_inst_id Notice that given that speculation windows are large, the policy is to kill the speculation on the first load and not worry if it can be completed with a dependent load/store [1]. [1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2 Signed-off-by: Gustavo A. R. Silva Signed-off-by: Bjorn Helgaas Acked-by: Logan Gunthorpe Cc: stable@vger.kernel.org --- drivers/pci/switch/switchtec.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c index 9940cc70f38b..54a8b30dda38 100644 --- a/drivers/pci/switch/switchtec.c +++ b/drivers/pci/switch/switchtec.c @@ -14,6 +14,8 @@ #include #include +#include + MODULE_DESCRIPTION("Microsemi Switchtec(tm) PCIe Management Driver"); MODULE_VERSION("0.1"); MODULE_LICENSE("GPL"); @@ -909,6 +911,8 @@ static int ioctl_port_to_pff(struct switchtec_dev *stdev, default: if (p.port > ARRAY_SIZE(pcfg->dsp_pff_inst_id)) return -EINVAL; + p.port = array_index_nospec(p.port, + ARRAY_SIZE(pcfg->dsp_pff_inst_id) + 1); p.pff = ioread32(&pcfg->dsp_pff_inst_id[p.port - 1]); break; } From 34fb6bf9b13aef4ca14224f2175ecd189e98160b Mon Sep 17 00:00:00 2001 From: Keith Busch Date: Wed, 5 Sep 2018 14:35:41 -0600 Subject: [PATCH 0865/1762] PCI: pciehp: Fix hot-add vs powerfault detection order If both hot-add and power fault were observed in a single interrupt, we handled the hot-add first, then the power fault, in this path: pciehp_ist if (events & (PDC | DLLSC)) pciehp_handle_presence_or_link_change case OFF_STATE: pciehp_enable_slot __pciehp_enable_slot board_added pciehp_power_on_slot ctrl->power_fault_detected = 0 pcie_write_cmd(ctrl, PCI_EXP_SLTCTL_PWR_ON, PCI_EXP_SLTCTL_PCC) pciehp_green_led_on(p_slot) # power LED on pciehp_set_attention_status(p_slot, 0) # attention LED off if ((events & PFD) && !ctrl->power_fault_detected) ctrl->power_fault_detected = 1 pciehp_set_attention_status(1) # attention LED on pciehp_green_led_off(slot) # power LED off This left the attention indicator on (even though the hot-add succeeded) and the power indicator off (even though the slot power was on). Fix this by checking for power faults before checking for new devices. Prior to 0e94916e6091, this was successful because everything was chained through work queues and the order was: INT_PRESENCE_ON -> INT_POWER_FAULT -> ENABLE_REQ The ENABLE_REQ cleared the power fault at the end, but now everything is handled inline with the interrupt thread, such that the work ENABLE_REQ was doing happens before power fault handling now. Fixes: 0e94916e6091 ("PCI: pciehp: Handle events synchronously") Signed-off-by: Keith Busch [bhelgaas: changelog] Signed-off-by: Bjorn Helgaas Reviewed-by: Lukas Wunner --- drivers/pci/hotplug/pciehp_hpc.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 7136e3430925..a938abdb41ce 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -496,7 +496,7 @@ int pciehp_power_on_slot(struct slot *slot) u16 slot_status; int retval; - /* Clear sticky power-fault bit from previous power failures */ + /* Clear power-fault bit from previous power failures */ pcie_capability_read_word(pdev, PCI_EXP_SLTSTA, &slot_status); if (slot_status & PCI_EXP_SLTSTA_PFD) pcie_capability_write_word(pdev, PCI_EXP_SLTSTA, @@ -646,6 +646,14 @@ static irqreturn_t pciehp_ist(int irq, void *dev_id) pciehp_handle_button_press(slot); } + /* Check Power Fault Detected */ + if ((events & PCI_EXP_SLTSTA_PFD) && !ctrl->power_fault_detected) { + ctrl->power_fault_detected = 1; + ctrl_err(ctrl, "Slot(%s): Power fault\n", slot_name(slot)); + pciehp_set_attention_status(slot, 1); + pciehp_green_led_off(slot); + } + /* * Disable requests have higher priority than Presence Detect Changed * or Data Link Layer State Changed events. @@ -657,14 +665,6 @@ static irqreturn_t pciehp_ist(int irq, void *dev_id) pciehp_handle_presence_or_link_change(slot, events); up_read(&ctrl->reset_lock); - /* Check Power Fault Detected */ - if ((events & PCI_EXP_SLTSTA_PFD) && !ctrl->power_fault_detected) { - ctrl->power_fault_detected = 1; - ctrl_err(ctrl, "Slot(%s): Power fault\n", slot_name(slot)); - pciehp_set_attention_status(slot, 1); - pciehp_green_led_off(slot); - } - pci_config_pm_runtime_put(pdev); wake_up(&ctrl->requester); return IRQ_HANDLED; From 0ee03d936cbb300309ed6154ac1cc12b63e9785f Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 11 Sep 2018 10:57:13 -0300 Subject: [PATCH 0866/1762] tools headers uapi: Update tools's copy of linux/perf_event.h To get the changes in: 09121255c784 ("perf/UAPI: Clearly mark __PERF_SAMPLE_CALLCHAIN_EARLY as internal use") This cures the following warning during perf's build: Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h' diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h Cc: Peter Zijlstra Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-2vvwh2o19orn56di0ksrtgzr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/include/uapi/linux/perf_event.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h index eeb787b1c53c..f35eb72739c0 100644 --- a/tools/include/uapi/linux/perf_event.h +++ b/tools/include/uapi/linux/perf_event.h @@ -144,7 +144,7 @@ enum perf_event_sample_format { PERF_SAMPLE_MAX = 1U << 20, /* non-ABI */ - __PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63, + __PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63, /* non-ABI; internal use */ }; /* From f9e6e4351e0bb0811a8b3696679cc6050e4f5947 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 11 Sep 2018 11:00:54 -0300 Subject: [PATCH 0867/1762] tools headers uapi: Update tools's copy of asm-generic/unistd.h To get the changes in: db7a2d1809a5 ("asm-generic: unistd.h: Wire up sys_rseq") That wires up the new 'rsec' system call, which will automagically support that syscall in the syscall table used by 'perf trace' on arm/arm64. This cures the following warning during perf's build: Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h' diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Arnd Bergmann Cc: David Ahern Cc: Hendrik Brueckner Cc: Jiri Olsa Cc: Kim Phillips Cc: Mathieu Desnoyers Cc: Michael Ellerman Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: Thomas Richter Cc: Wang Nan Cc: Will Deacon Link: https://lkml.kernel.org/n/tip-vt7k2itnitp1t9p3dp7qeb08@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/include/uapi/asm-generic/unistd.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/include/uapi/asm-generic/unistd.h b/tools/include/uapi/asm-generic/unistd.h index 42990676a55e..df4bedb9b01c 100644 --- a/tools/include/uapi/asm-generic/unistd.h +++ b/tools/include/uapi/asm-generic/unistd.h @@ -734,9 +734,11 @@ __SYSCALL(__NR_pkey_free, sys_pkey_free) __SYSCALL(__NR_statx, sys_statx) #define __NR_io_pgetevents 292 __SC_COMP(__NR_io_pgetevents, sys_io_pgetevents, compat_sys_io_pgetevents) +#define __NR_rseq 293 +__SYSCALL(__NR_rseq, sys_rseq) #undef __NR_syscalls -#define __NR_syscalls 293 +#define __NR_syscalls 294 /* * 32 bit systems traditionally used different From 434ea1bfbfc707f5fed9292df6a9b91dfb8e41f2 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 11 Sep 2018 11:07:56 -0300 Subject: [PATCH 0868/1762] tools headers uapi: Update tools's copy of drm/drm.h To get the changes in: d67b6a206507 ("drm: writeback: Add client capability for exposing writeback connectors") This is for an argument to a DRM ioctl, which is not being prettyfied in the 'perf trace' DRM ioctl beautifier, but will now that syscalls are starting to have pointer arguments augmented via BPF. This time around this just cures the following warning during perf's build: Warning: Kernel ABI header at 'tools/include/uapi/drm/drm.h' differs from latest version at 'include/uapi/drm/drm.h' diff -u tools/include/uapi/drm/drm.h include/uapi/drm/drm.h Cc: Adrian Hunter Cc: Brian Starkey Cc: David Ahern Cc: Eric Anholt Cc: Jiri Olsa Cc: Liviu Dudau Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Sean Paul Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-n7qib1bac6mc6w9oke7r4qdc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Arnaldo Carvalho de Melo --- tools/include/uapi/drm/drm.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/tools/include/uapi/drm/drm.h b/tools/include/uapi/drm/drm.h index 9c660e1688ab..300f336633f2 100644 --- a/tools/include/uapi/drm/drm.h +++ b/tools/include/uapi/drm/drm.h @@ -687,6 +687,15 @@ struct drm_get_cap { */ #define DRM_CLIENT_CAP_ASPECT_RATIO 4 +/** + * DRM_CLIENT_CAP_WRITEBACK_CONNECTORS + * + * If set to 1, the DRM core will expose special connectors to be used for + * writing back to memory the scene setup in the commit. Depends on client + * also supporting DRM_CLIENT_CAP_ATOMIC + */ +#define DRM_CLIENT_CAP_WRITEBACK_CONNECTORS 5 + /** DRM_IOCTL_SET_CLIENT_CAP ioctl argument type */ struct drm_set_client_cap { __u64 capability; From 9f34519a82356f6cf0ccb8480ee0ed99b3d0af75 Mon Sep 17 00:00:00 2001 From: Steve Wise Date: Fri, 31 Aug 2018 11:52:00 -0700 Subject: [PATCH 0869/1762] cxgb4: fix abort_req_rss6 struct Remove the incorrect WR_HDR field which can cause a misinterpretation of ABORT CPL by ULDs, such as iw_cxgb4. Fixes: a3cdaa69e4ae ("cxgb4: Adds CPL support for Shared Receive Queues") Signed-off-by: Steve Wise Signed-off-by: Jason Gunthorpe --- drivers/net/ethernet/chelsio/cxgb4/t4_msg.h | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h index b8f75a22fb6c..f152da1ce046 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h @@ -753,7 +753,6 @@ struct cpl_abort_req_rss { }; struct cpl_abort_req_rss6 { - WR_HDR; union opcode_tid ot; __be32 srqidx_status; }; From 17dc7af70e89db773a7213f0b4270c69236a63ab Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 6 Sep 2018 20:01:43 +0100 Subject: [PATCH 0870/1762] drm/i915/overlay: Allocate physical registers from stolen MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Given that we are now reasonably confident in our ability to detect and reserve the stolen memory (physical memory reserved for graphics by the BIOS) for ourselves on most machines, we can put it to use. In this case, we need a page to hold the overlay registers. On an i915g running MythTv, H Buus noticed that commit 6a2c4232ece145d8b5a8f95f767bd6d0d2d2f2bb Author: Chris Wilson Date: Tue Nov 4 04:51:40 2014 -0800 drm/i915: Make the physical object coherent with GTT introduced stuttering into his video playback. After discarding the likely suspect of it being the physical cursor updates, we were left with the use of the phys object for the overlay. And lo, if we completely avoid using the phys object (allocated just once on module load!) by switching to stolen memory, the stuttering goes away. For lack of a better explanation, claim victory and kill two birds with one stone. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107600 Fixes: 6a2c4232ece1 ("drm/i915: Make the physical object coherent with GTT") Signed-off-by: Chris Wilson Cc: Ville Syrjälä Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20180906190144.1272-1-chris@chris-wilson.co.uk (cherry picked from commit c8124d399224d626728e2ffb95a1d564a7c06968) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/intel_overlay.c | 228 +++++++++------------------ 1 file changed, 75 insertions(+), 153 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c index c2f10d899329..443dfaefd7a6 100644 --- a/drivers/gpu/drm/i915/intel_overlay.c +++ b/drivers/gpu/drm/i915/intel_overlay.c @@ -181,8 +181,9 @@ struct intel_overlay { u32 brightness, contrast, saturation; u32 old_xscale, old_yscale; /* register access */ - u32 flip_addr; struct drm_i915_gem_object *reg_bo; + struct overlay_registers __iomem *regs; + u32 flip_addr; /* flip handling */ struct i915_gem_active last_flip; }; @@ -210,29 +211,6 @@ static void i830_overlay_clock_gating(struct drm_i915_private *dev_priv, PCI_DEVFN(0, 0), I830_CLOCK_GATE, val); } -static struct overlay_registers __iomem * -intel_overlay_map_regs(struct intel_overlay *overlay) -{ - struct drm_i915_private *dev_priv = overlay->i915; - struct overlay_registers __iomem *regs; - - if (OVERLAY_NEEDS_PHYSICAL(dev_priv)) - regs = (struct overlay_registers __iomem *)overlay->reg_bo->phys_handle->vaddr; - else - regs = io_mapping_map_wc(&dev_priv->ggtt.iomap, - overlay->flip_addr, - PAGE_SIZE); - - return regs; -} - -static void intel_overlay_unmap_regs(struct intel_overlay *overlay, - struct overlay_registers __iomem *regs) -{ - if (!OVERLAY_NEEDS_PHYSICAL(overlay->i915)) - io_mapping_unmap(regs); -} - static void intel_overlay_submit_request(struct intel_overlay *overlay, struct i915_request *rq, i915_gem_retire_fn retire) @@ -784,13 +762,13 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay, struct drm_i915_gem_object *new_bo, struct put_image_params *params) { - int ret, tmp_width; - struct overlay_registers __iomem *regs; - bool scale_changed = false; + struct overlay_registers __iomem *regs = overlay->regs; struct drm_i915_private *dev_priv = overlay->i915; u32 swidth, swidthsw, sheight, ostride; enum pipe pipe = overlay->crtc->pipe; + bool scale_changed = false; struct i915_vma *vma; + int ret, tmp_width; lockdep_assert_held(&dev_priv->drm.struct_mutex); WARN_ON(!drm_modeset_is_locked(&dev_priv->drm.mode_config.connection_mutex)); @@ -815,30 +793,19 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay, if (!overlay->active) { u32 oconfig; - regs = intel_overlay_map_regs(overlay); - if (!regs) { - ret = -ENOMEM; - goto out_unpin; - } + oconfig = OCONF_CC_OUT_8BIT; if (IS_GEN4(dev_priv)) oconfig |= OCONF_CSC_MODE_BT709; oconfig |= pipe == 0 ? OCONF_PIPE_A : OCONF_PIPE_B; iowrite32(oconfig, ®s->OCONFIG); - intel_overlay_unmap_regs(overlay, regs); ret = intel_overlay_on(overlay); if (ret != 0) goto out_unpin; } - regs = intel_overlay_map_regs(overlay); - if (!regs) { - ret = -ENOMEM; - goto out_unpin; - } - iowrite32((params->dst_y << 16) | params->dst_x, ®s->DWINPOS); iowrite32((params->dst_h << 16) | params->dst_w, ®s->DWINSZ); @@ -882,8 +849,6 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay, iowrite32(overlay_cmd_reg(params), ®s->OCMD); - intel_overlay_unmap_regs(overlay, regs); - ret = intel_overlay_continue(overlay, vma, scale_changed); if (ret) goto out_unpin; @@ -901,7 +866,6 @@ out_pin_section: int intel_overlay_switch_off(struct intel_overlay *overlay) { struct drm_i915_private *dev_priv = overlay->i915; - struct overlay_registers __iomem *regs; int ret; lockdep_assert_held(&dev_priv->drm.struct_mutex); @@ -918,9 +882,7 @@ int intel_overlay_switch_off(struct intel_overlay *overlay) if (ret != 0) return ret; - regs = intel_overlay_map_regs(overlay); - iowrite32(0, ®s->OCMD); - intel_overlay_unmap_regs(overlay, regs); + iowrite32(0, &overlay->regs->OCMD); return intel_overlay_off(overlay); } @@ -1305,7 +1267,6 @@ int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data, struct drm_intel_overlay_attrs *attrs = data; struct drm_i915_private *dev_priv = to_i915(dev); struct intel_overlay *overlay; - struct overlay_registers __iomem *regs; int ret; overlay = dev_priv->overlay; @@ -1345,15 +1306,7 @@ int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data, overlay->contrast = attrs->contrast; overlay->saturation = attrs->saturation; - regs = intel_overlay_map_regs(overlay); - if (!regs) { - ret = -ENOMEM; - goto out_unlock; - } - - update_reg_attrs(overlay, regs); - - intel_overlay_unmap_regs(overlay, regs); + update_reg_attrs(overlay, overlay->regs); if (attrs->flags & I915_OVERLAY_UPDATE_GAMMA) { if (IS_GEN2(dev_priv)) @@ -1386,12 +1339,47 @@ out_unlock: return ret; } +static int get_registers(struct intel_overlay *overlay, bool use_phys) +{ + struct drm_i915_gem_object *obj; + struct i915_vma *vma; + int err; + + obj = i915_gem_object_create_stolen(overlay->i915, PAGE_SIZE); + if (obj == NULL) + obj = i915_gem_object_create_internal(overlay->i915, PAGE_SIZE); + if (IS_ERR(obj)) + return PTR_ERR(obj); + + vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0, PIN_MAPPABLE); + if (IS_ERR(vma)) { + err = PTR_ERR(vma); + goto err_put_bo; + } + + if (use_phys) + overlay->flip_addr = sg_dma_address(obj->mm.pages->sgl); + else + overlay->flip_addr = i915_ggtt_offset(vma); + overlay->regs = i915_vma_pin_iomap(vma); + i915_vma_unpin(vma); + + if (IS_ERR(overlay->regs)) { + err = PTR_ERR(overlay->regs); + goto err_put_bo; + } + + overlay->reg_bo = obj; + return 0; + +err_put_bo: + i915_gem_object_put(obj); + return err; +} + void intel_setup_overlay(struct drm_i915_private *dev_priv) { struct intel_overlay *overlay; - struct drm_i915_gem_object *reg_bo; - struct overlay_registers __iomem *regs; - struct i915_vma *vma = NULL; int ret; if (!HAS_OVERLAY(dev_priv)) @@ -1401,46 +1389,8 @@ void intel_setup_overlay(struct drm_i915_private *dev_priv) if (!overlay) return; - mutex_lock(&dev_priv->drm.struct_mutex); - if (WARN_ON(dev_priv->overlay)) - goto out_free; - overlay->i915 = dev_priv; - reg_bo = NULL; - if (!OVERLAY_NEEDS_PHYSICAL(dev_priv)) - reg_bo = i915_gem_object_create_stolen(dev_priv, PAGE_SIZE); - if (reg_bo == NULL) - reg_bo = i915_gem_object_create(dev_priv, PAGE_SIZE); - if (IS_ERR(reg_bo)) - goto out_free; - overlay->reg_bo = reg_bo; - - if (OVERLAY_NEEDS_PHYSICAL(dev_priv)) { - ret = i915_gem_object_attach_phys(reg_bo, PAGE_SIZE); - if (ret) { - DRM_ERROR("failed to attach phys overlay regs\n"); - goto out_free_bo; - } - overlay->flip_addr = reg_bo->phys_handle->busaddr; - } else { - vma = i915_gem_object_ggtt_pin(reg_bo, NULL, - 0, PAGE_SIZE, PIN_MAPPABLE); - if (IS_ERR(vma)) { - DRM_ERROR("failed to pin overlay register bo\n"); - ret = PTR_ERR(vma); - goto out_free_bo; - } - overlay->flip_addr = i915_ggtt_offset(vma); - - ret = i915_gem_object_set_to_gtt_domain(reg_bo, true); - if (ret) { - DRM_ERROR("failed to move overlay register bo into the GTT\n"); - goto out_unpin_bo; - } - } - - /* init all values */ overlay->color_key = 0x0101fe; overlay->color_key_enabled = true; overlay->brightness = -19; @@ -1449,44 +1399,51 @@ void intel_setup_overlay(struct drm_i915_private *dev_priv) init_request_active(&overlay->last_flip, NULL); - regs = intel_overlay_map_regs(overlay); - if (!regs) - goto out_unpin_bo; + mutex_lock(&dev_priv->drm.struct_mutex); - memset_io(regs, 0, sizeof(struct overlay_registers)); - update_polyphase_filter(regs); - update_reg_attrs(overlay, regs); + ret = get_registers(overlay, OVERLAY_NEEDS_PHYSICAL(dev_priv)); + if (ret) + goto out_free; - intel_overlay_unmap_regs(overlay, regs); + ret = i915_gem_object_set_to_gtt_domain(overlay->reg_bo, true); + if (ret) + goto out_reg_bo; + + mutex_unlock(&dev_priv->drm.struct_mutex); + + memset_io(overlay->regs, 0, sizeof(struct overlay_registers)); + update_polyphase_filter(overlay->regs); + update_reg_attrs(overlay, overlay->regs); dev_priv->overlay = overlay; - mutex_unlock(&dev_priv->drm.struct_mutex); - DRM_INFO("initialized overlay support\n"); + DRM_INFO("Initialized overlay support.\n"); return; -out_unpin_bo: - if (vma) - i915_vma_unpin(vma); -out_free_bo: - i915_gem_object_put(reg_bo); +out_reg_bo: + i915_gem_object_put(overlay->reg_bo); out_free: mutex_unlock(&dev_priv->drm.struct_mutex); kfree(overlay); - return; } void intel_cleanup_overlay(struct drm_i915_private *dev_priv) { - if (!dev_priv->overlay) + struct intel_overlay *overlay; + + overlay = fetch_and_zero(&dev_priv->overlay); + if (!overlay) return; - /* The bo's should be free'd by the generic code already. + /* + * The bo's should be free'd by the generic code already. * Furthermore modesetting teardown happens beforehand so the - * hardware should be off already */ - WARN_ON(dev_priv->overlay->active); + * hardware should be off already. + */ + WARN_ON(overlay->active); - i915_gem_object_put(dev_priv->overlay->reg_bo); - kfree(dev_priv->overlay); + i915_gem_object_put(overlay->reg_bo); + + kfree(overlay); } #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) @@ -1498,37 +1455,11 @@ struct intel_overlay_error_state { u32 isr; }; -static struct overlay_registers __iomem * -intel_overlay_map_regs_atomic(struct intel_overlay *overlay) -{ - struct drm_i915_private *dev_priv = overlay->i915; - struct overlay_registers __iomem *regs; - - if (OVERLAY_NEEDS_PHYSICAL(dev_priv)) - /* Cast to make sparse happy, but it's wc memory anyway, so - * equivalent to the wc io mapping on X86. */ - regs = (struct overlay_registers __iomem *) - overlay->reg_bo->phys_handle->vaddr; - else - regs = io_mapping_map_atomic_wc(&dev_priv->ggtt.iomap, - overlay->flip_addr); - - return regs; -} - -static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay, - struct overlay_registers __iomem *regs) -{ - if (!OVERLAY_NEEDS_PHYSICAL(overlay->i915)) - io_mapping_unmap_atomic(regs); -} - struct intel_overlay_error_state * intel_overlay_capture_error_state(struct drm_i915_private *dev_priv) { struct intel_overlay *overlay = dev_priv->overlay; struct intel_overlay_error_state *error; - struct overlay_registers __iomem *regs; if (!overlay || !overlay->active) return NULL; @@ -1541,18 +1472,9 @@ intel_overlay_capture_error_state(struct drm_i915_private *dev_priv) error->isr = I915_READ(ISR); error->base = overlay->flip_addr; - regs = intel_overlay_map_regs_atomic(overlay); - if (!regs) - goto err; - - memcpy_fromio(&error->regs, regs, sizeof(struct overlay_registers)); - intel_overlay_unmap_regs_atomic(overlay, regs); + memcpy_fromio(&error->regs, overlay->regs, sizeof(error->regs)); return error; - -err: - kfree(error); - return NULL; } void From 10492ee8ed9188d6d420e1f79b2b9bdbc0624e65 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 25 Apr 2018 07:29:22 -0700 Subject: [PATCH 0871/1762] mfd: omap-usb-host: Fix dts probe of children It currently only works if the parent bus uses "simple-bus". We currently try to probe children with non-existing compatible values. And we're missing .probe. I noticed this while testing devices configured to probe using ti-sysc interconnect target module driver. For that we also may want to rebind the driver, so let's remove __init and __exit. Signed-off-by: Tony Lindgren Acked-by: Roger Quadros Signed-off-by: Lee Jones --- drivers/mfd/omap-usb-host.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c index e11ab12fbdf2..800986a79704 100644 --- a/drivers/mfd/omap-usb-host.c +++ b/drivers/mfd/omap-usb-host.c @@ -528,8 +528,8 @@ static int usbhs_omap_get_dt_pdata(struct device *dev, } static const struct of_device_id usbhs_child_match_table[] = { - { .compatible = "ti,omap-ehci", }, - { .compatible = "ti,omap-ohci", }, + { .compatible = "ti,ehci-omap", }, + { .compatible = "ti,ohci-omap3", }, { } }; @@ -855,6 +855,7 @@ static struct platform_driver usbhs_omap_driver = { .pm = &usbhsomap_dev_pm_ops, .of_match_table = usbhs_omap_dt_ids, }, + .probe = usbhs_omap_probe, .remove = usbhs_omap_remove, }; @@ -864,9 +865,9 @@ MODULE_ALIAS("platform:" USBHS_DRIVER_NAME); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("usb host common core driver for omap EHCI and OHCI"); -static int __init omap_usbhs_drvinit(void) +static int omap_usbhs_drvinit(void) { - return platform_driver_probe(&usbhs_omap_driver, usbhs_omap_probe); + return platform_driver_register(&usbhs_omap_driver); } /* @@ -878,7 +879,7 @@ static int __init omap_usbhs_drvinit(void) */ fs_initcall_sync(omap_usbhs_drvinit); -static void __exit omap_usbhs_drvexit(void) +static void omap_usbhs_drvexit(void) { platform_driver_unregister(&usbhs_omap_driver); } From a6ebf4c9770e918e601aa9bf4bc3cf4001dd3d4d Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 11 Sep 2018 07:02:04 +0000 Subject: [PATCH 0872/1762] ASoC: rt5668: remove empty rt5668_i2c_remove() rt5668_i2c_remove() is empty, and no longer needed. Let's remove it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/codecs/rt5668.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/sound/soc/codecs/rt5668.c b/sound/soc/codecs/rt5668.c index 4412cd2910cd..85ba04d6e7ae 100644 --- a/sound/soc/codecs/rt5668.c +++ b/sound/soc/codecs/rt5668.c @@ -2591,11 +2591,6 @@ static int rt5668_i2c_probe(struct i2c_client *i2c, rt5668_dai, ARRAY_SIZE(rt5668_dai)); } -static int rt5668_i2c_remove(struct i2c_client *i2c) -{ - return 0; -} - static void rt5668_i2c_shutdown(struct i2c_client *client) { struct rt5668_priv *rt5668 = i2c_get_clientdata(client); @@ -2626,7 +2621,6 @@ static struct i2c_driver rt5668_i2c_driver = { .acpi_match_table = ACPI_PTR(rt5668_acpi_match), }, .probe = rt5668_i2c_probe, - .remove = rt5668_i2c_remove, .shutdown = rt5668_i2c_shutdown, .id_table = rt5668_i2c_id, }; From 0210c156d7fd330bce1c2c842bee9d27f1c5dfeb Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 11 Sep 2018 11:18:58 -0300 Subject: [PATCH 0873/1762] tools headers uapi: Update tools's copies of kvm headers To get the changes in: a449938297e5 ("KVM: s390: Add huge page enablement control") 8fcc4b5923af ("kvm: nVMX: Introduce KVM_CAP_NESTED_STATE") be26b3a73413 ("arm64: KVM: export the capability to set guest SError syndrome") b7b27facc7b5 ("arm/arm64: KVM: Add KVM_GET/SET_VCPU_EVENTS") b0960b9569db ("KVM: arm: Add 32bit get/set events support") a3da7b4a3be5 ("KVM: s390: add etoken support for guests") This makes 'perf trace' automagically get aware of these new ioctls: $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h $ tools/perf/trace/beauty/kvm_ioctl.sh > /tmp/after $ diff -u /tmp/before /tmp/after --- /tmp/before 2018-09-11 11:18:29.173207586 -0300 +++ /tmp/after 2018-09-11 11:18:38.488200446 -0300 @@ -84,6 +84,8 @@ [0xbb] = "MEMORY_ENCRYPT_REG_REGION", [0xbc] = "MEMORY_ENCRYPT_UNREG_REGION", [0xbd] = "HYPERV_EVENTFD", + [0xbe] = "GET_NESTED_STATE", + [0xbf] = "SET_NESTED_STATE", [0xe0] = "CREATE_DEVICE", [0xe1] = "SET_DEVICE_ATTR", [0xe2] = "G And cures the following warning during perf's build: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Adrian Hunter Cc: Christian Borntraeger Cc: Cornelia Huck Cc: David Ahern Cc: David Hildenbrand Cc: Dongjiu Geng Cc: Eduardo Habkost Cc: James Morse Cc: Janosch Frank Cc: Jim Mattson Cc: Jiri Olsa Cc: Marc Zyngier Cc: Namhyung Kim Cc: Paolo Bonzini Cc: Peter Zijlstra Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-2vvwh2o19orn56di0ksrtgzr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Arnaldo Carvalho de Melo --- tools/arch/arm/include/uapi/asm/kvm.h | 13 +++++++++ tools/arch/arm64/include/uapi/asm/kvm.h | 13 +++++++++ tools/arch/s390/include/uapi/asm/kvm.h | 5 +++- tools/arch/x86/include/uapi/asm/kvm.h | 37 +++++++++++++++++++++++++ tools/include/uapi/linux/kvm.h | 6 ++++ 5 files changed, 73 insertions(+), 1 deletion(-) diff --git a/tools/arch/arm/include/uapi/asm/kvm.h b/tools/arch/arm/include/uapi/asm/kvm.h index 16e006f708ca..4602464ebdfb 100644 --- a/tools/arch/arm/include/uapi/asm/kvm.h +++ b/tools/arch/arm/include/uapi/asm/kvm.h @@ -27,6 +27,7 @@ #define __KVM_HAVE_GUEST_DEBUG #define __KVM_HAVE_IRQ_LINE #define __KVM_HAVE_READONLY_MEM +#define __KVM_HAVE_VCPU_EVENTS #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 @@ -125,6 +126,18 @@ struct kvm_sync_regs { struct kvm_arch_memory_slot { }; +/* for KVM_GET/SET_VCPU_EVENTS */ +struct kvm_vcpu_events { + struct { + __u8 serror_pending; + __u8 serror_has_esr; + /* Align it to 8 bytes */ + __u8 pad[6]; + __u64 serror_esr; + } exception; + __u32 reserved[12]; +}; + /* If you need to interpret the index values, here is the key: */ #define KVM_REG_ARM_COPROC_MASK 0x000000000FFF0000 #define KVM_REG_ARM_COPROC_SHIFT 16 diff --git a/tools/arch/arm64/include/uapi/asm/kvm.h b/tools/arch/arm64/include/uapi/asm/kvm.h index 4e76630dd655..97c3478ee6e7 100644 --- a/tools/arch/arm64/include/uapi/asm/kvm.h +++ b/tools/arch/arm64/include/uapi/asm/kvm.h @@ -39,6 +39,7 @@ #define __KVM_HAVE_GUEST_DEBUG #define __KVM_HAVE_IRQ_LINE #define __KVM_HAVE_READONLY_MEM +#define __KVM_HAVE_VCPU_EVENTS #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 @@ -154,6 +155,18 @@ struct kvm_sync_regs { struct kvm_arch_memory_slot { }; +/* for KVM_GET/SET_VCPU_EVENTS */ +struct kvm_vcpu_events { + struct { + __u8 serror_pending; + __u8 serror_has_esr; + /* Align it to 8 bytes */ + __u8 pad[6]; + __u64 serror_esr; + } exception; + __u32 reserved[12]; +}; + /* If you need to interpret the index values, here is the key: */ #define KVM_REG_ARM_COPROC_MASK 0x000000000FFF0000 #define KVM_REG_ARM_COPROC_SHIFT 16 diff --git a/tools/arch/s390/include/uapi/asm/kvm.h b/tools/arch/s390/include/uapi/asm/kvm.h index 4cdaa55fabfe..9a50f02b9894 100644 --- a/tools/arch/s390/include/uapi/asm/kvm.h +++ b/tools/arch/s390/include/uapi/asm/kvm.h @@ -4,7 +4,7 @@ /* * KVM s390 specific structures and definitions * - * Copyright IBM Corp. 2008 + * Copyright IBM Corp. 2008, 2018 * * Author(s): Carsten Otte * Christian Borntraeger @@ -225,6 +225,7 @@ struct kvm_guest_debug_arch { #define KVM_SYNC_FPRS (1UL << 8) #define KVM_SYNC_GSCB (1UL << 9) #define KVM_SYNC_BPBC (1UL << 10) +#define KVM_SYNC_ETOKEN (1UL << 11) /* length and alignment of the sdnx as a power of two */ #define SDNXC 8 #define SDNXL (1UL << SDNXC) @@ -258,6 +259,8 @@ struct kvm_sync_regs { struct { __u64 reserved1[2]; __u64 gscb[4]; + __u64 etoken; + __u64 etoken_extension; }; }; }; diff --git a/tools/arch/x86/include/uapi/asm/kvm.h b/tools/arch/x86/include/uapi/asm/kvm.h index c535c2fdea13..86299efa804a 100644 --- a/tools/arch/x86/include/uapi/asm/kvm.h +++ b/tools/arch/x86/include/uapi/asm/kvm.h @@ -378,4 +378,41 @@ struct kvm_sync_regs { #define KVM_X86_QUIRK_LINT0_REENABLED (1 << 0) #define KVM_X86_QUIRK_CD_NW_CLEARED (1 << 1) +#define KVM_STATE_NESTED_GUEST_MODE 0x00000001 +#define KVM_STATE_NESTED_RUN_PENDING 0x00000002 + +#define KVM_STATE_NESTED_SMM_GUEST_MODE 0x00000001 +#define KVM_STATE_NESTED_SMM_VMXON 0x00000002 + +struct kvm_vmx_nested_state { + __u64 vmxon_pa; + __u64 vmcs_pa; + + struct { + __u16 flags; + } smm; +}; + +/* for KVM_CAP_NESTED_STATE */ +struct kvm_nested_state { + /* KVM_STATE_* flags */ + __u16 flags; + + /* 0 for VMX, 1 for SVM. */ + __u16 format; + + /* 128 for SVM, 128 + VMCS size for VMX. */ + __u32 size; + + union { + /* VMXON, VMCS */ + struct kvm_vmx_nested_state vmx; + + /* Pad the header to 128 bytes. */ + __u8 pad[120]; + }; + + __u8 data[0]; +}; + #endif /* _ASM_X86_KVM_H */ diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h index b6270a3b38e9..07548de5c988 100644 --- a/tools/include/uapi/linux/kvm.h +++ b/tools/include/uapi/linux/kvm.h @@ -949,6 +949,9 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_GET_MSR_FEATURES 153 #define KVM_CAP_HYPERV_EVENTFD 154 #define KVM_CAP_HYPERV_TLBFLUSH 155 +#define KVM_CAP_S390_HPAGE_1M 156 +#define KVM_CAP_NESTED_STATE 157 +#define KVM_CAP_ARM_INJECT_SERROR_ESR 158 #ifdef KVM_CAP_IRQ_ROUTING @@ -1391,6 +1394,9 @@ struct kvm_enc_region { /* Available with KVM_CAP_HYPERV_EVENTFD */ #define KVM_HYPERV_EVENTFD _IOW(KVMIO, 0xbd, struct kvm_hyperv_eventfd) +/* Available with KVM_CAP_NESTED_STATE */ +#define KVM_GET_NESTED_STATE _IOWR(KVMIO, 0xbe, struct kvm_nested_state) +#define KVM_SET_NESTED_STATE _IOW(KVMIO, 0xbf, struct kvm_nested_state) /* Secure Encrypted Virtualization command */ enum sev_cmd_id { From 7f28785c41f4d5635e69c183b3de8ea19093ccef Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 11 Sep 2018 13:12:40 -0300 Subject: [PATCH 0874/1762] tools headers uapi: Update tools's copy of linux/vhost.h To get the changes in: c48300c92ad9 ("vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition") This makes 'perf trace' and other tools in the future using its beautifiers in a libbeauty.so library be able to translate these new ioctl to strings: $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > /tmp/after $ diff -u /tmp/before /tmp/after --- /tmp/before 2018-09-11 13:10:57.923038244 -0300 +++ /tmp/after 2018-09-11 13:11:20.329012685 -0300 @@ -15,6 +15,7 @@ [0x22] = "SET_VRING_ERR", [0x23] = "SET_VRING_BUSYLOOP_TIMEOUT", [0x24] = "GET_VRING_BUSYLOOP_TIMEOUT", + [0x25] = "SET_BACKEND_FEATURES", [0x30] = "NET_SET_BACKEND", [0x40] = "SCSI_SET_ENDPOINT", [0x41] = "SCSI_CLEAR_ENDPOINT", @@ -27,4 +28,5 @@ static const char *vhost_virtio_ioctl_read_cmds[] = { [0x00] = "GET_FEATURES", [0x12] = "GET_VRING_BASE", + [0x26] = "GET_BACKEND_FEATURES", }; $ We'll also use this to be able to express syscall filters using symbolic these symbolic names, something like: # perf trace --all-cpus -e ioctl(cmd=*GET_FEATURES) This silences the following warning during perf's build: Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h' diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h Cc: Adrian Hunter Cc: David Ahern Cc: David S. Miller Cc: Gleb Fotengauer-Malinovskiy Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-35x71oei2hdui9u0tarpimbq@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Arnaldo Carvalho de Melo --- tools/include/uapi/linux/vhost.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/tools/include/uapi/linux/vhost.h b/tools/include/uapi/linux/vhost.h index c51f8e5cc608..84c3de89696a 100644 --- a/tools/include/uapi/linux/vhost.h +++ b/tools/include/uapi/linux/vhost.h @@ -65,6 +65,7 @@ struct vhost_iotlb_msg { }; #define VHOST_IOTLB_MSG 0x1 +#define VHOST_IOTLB_MSG_V2 0x2 struct vhost_msg { int type; @@ -74,6 +75,15 @@ struct vhost_msg { }; }; +struct vhost_msg_v2 { + __u32 type; + __u32 reserved; + union { + struct vhost_iotlb_msg iotlb; + __u8 padding[64]; + }; +}; + struct vhost_memory_region { __u64 guest_phys_addr; __u64 memory_size; /* bytes */ @@ -160,6 +170,14 @@ struct vhost_memory { #define VHOST_GET_VRING_BUSYLOOP_TIMEOUT _IOW(VHOST_VIRTIO, 0x24, \ struct vhost_vring_state) +/* Set or get vhost backend capability */ + +/* Use message type V2 */ +#define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1 + +#define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) +#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) + /* VHOST_NET specific defines */ /* Attach virtio net ring to a raw socket, or tap device. From 2eda3cb108b699a6ff78a87e25143c153bc88e41 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 11 Sep 2018 06:54:26 +0000 Subject: [PATCH 0875/1762] ASoC: soc-core: avoid nested code on soc_remove_dai() Nested code is not readable. This patch avoid it on soc_remove_dai(). Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 4e9367aacc0c..dde9b70b58b5 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -942,17 +942,18 @@ static void soc_remove_dai(struct snd_soc_dai *dai, int order) { int err; - if (dai && dai->probed && - dai->driver->remove_order == order) { - if (dai->driver->remove) { - err = dai->driver->remove(dai); - if (err < 0) - dev_err(dai->dev, - "ASoC: failed to remove %s: %d\n", - dai->name, err); - } - dai->probed = 0; + if (!dai || !dai->probed || + dai->driver->remove_order != order) + return; + + if (dai->driver->remove) { + err = dai->driver->remove(dai); + if (err < 0) + dev_err(dai->dev, + "ASoC: failed to remove %s: %d\n", + dai->name, err); } + dai->probed = 0; } static void soc_remove_link_dais(struct snd_soc_card *card, From 4f1b327e65a9516a46ea491ce72a5161be176af8 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 11 Sep 2018 06:59:01 +0000 Subject: [PATCH 0876/1762] ASoC: soc-core: remove unused num_dai_links ALSA SoC is counting card->dai_link_list user, but no-one is using it. Let's remove it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/soc.h | 1 - sound/soc/soc-core.c | 4 ---- 2 files changed, 5 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index 821bf99992b8..e17a7ae9a155 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1060,7 +1060,6 @@ struct snd_soc_card { struct snd_soc_dai_link *dai_link; /* predefined links only */ int num_links; /* predefined links only */ struct list_head dai_link_list; /* all links */ - int num_dai_links; struct list_head rtd_list; int num_rtd; diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index dde9b70b58b5..7e18937c2214 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1013,7 +1013,6 @@ static void soc_remove_dai_links(struct snd_soc_card *card) link->name); list_del(&link->list); - card->num_dai_links--; } } @@ -1182,7 +1181,6 @@ int snd_soc_add_dai_link(struct snd_soc_card *card, card->add_dai_link(card, dai_link); list_add_tail(&dai_link->list, &card->dai_link_list); - card->num_dai_links++; return 0; } @@ -1220,7 +1218,6 @@ void snd_soc_remove_dai_link(struct snd_soc_card *card, list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { if (link == dai_link) { list_del(&link->list); - card->num_dai_links--; return; } } @@ -2712,7 +2709,6 @@ int snd_soc_register_card(struct snd_soc_card *card) snd_soc_initialize_card_lists(card); INIT_LIST_HEAD(&card->dai_link_list); - card->num_dai_links = 0; INIT_LIST_HEAD(&card->rtd_list); card->num_rtd = 0; From e54192b48da75f025ae4b277925eaf6aca1d13bd Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Tue, 11 Sep 2018 09:28:14 -0500 Subject: [PATCH 0877/1762] of: fix phandle cache creation for DTs with no phandles With commit 0b3ce78e90fc ("of: cache phandle nodes to reduce cost of of_find_node_by_phandle()"), a G3 PowerMac fails to boot. The root cause is the DT for this system has no phandle properties when booted with BootX. of_populate_phandle_cache() does not handle the case of no phandles correctly. The problem is roundup_pow_of_two() for 0 is undefined. The implementation subtracts 1 underflowing and then things are in the weeds. Fixes: 0b3ce78e90fc ("of: cache phandle nodes to reduce cost of of_find_node_by_phandle()") Cc: stable@vger.kernel.org # 4.17+ Reported-by: Finn Thain Tested-by: Stan Johnson Reviewed-by: Frank Rowand Cc: Benjamin Herrenschmidt Signed-off-by: Rob Herring --- drivers/of/base.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/of/base.c b/drivers/of/base.c index 9095b8290150..74eaedd5b860 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -140,6 +140,9 @@ void of_populate_phandle_cache(void) if (np->phandle && np->phandle != OF_PHANDLE_ILLEGAL) phandles++; + if (!phandles) + goto out; + cache_entries = roundup_pow_of_two(phandles); phandle_cache_mask = cache_entries - 1; From 1ebafd1561a05ea7868f46d88420fe9323f981f6 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 10 Sep 2018 20:30:38 +0200 Subject: [PATCH 0878/1762] staging: vboxvideo: Fix IRQs no longer working Commit 1daddbc8dec5 ("staging: vboxvideo: Update driver to use drm_dev_register.") replaced the obsolere drm_get_pci_dev() with normal pci probe and remove functions. But the new vbox_pci_probe() is missing a pci_enable_device() call, causing interrupts to not be delivered. This causes resizes of the vm window to not get seen by the drm/kms code. This commit adds the missing pci_enable_device() call, fixing this. Fixes: 1daddbc8dec5 ("staging: vboxvideo: Update driver to use ...") Cc: Fabio Rafael da Rosa Signed-off-by: Hans de Goede Reviewed-by: Nicholas Mc Guire Signed-off-by: Greg Kroah-Hartman --- drivers/staging/vboxvideo/vbox_drv.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/staging/vboxvideo/vbox_drv.c b/drivers/staging/vboxvideo/vbox_drv.c index da92c493f157..69cc508af1bc 100644 --- a/drivers/staging/vboxvideo/vbox_drv.c +++ b/drivers/staging/vboxvideo/vbox_drv.c @@ -59,6 +59,11 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ret = PTR_ERR(dev); goto err_drv_alloc; } + + ret = pci_enable_device(pdev); + if (ret) + goto err_pci_enable; + dev->pdev = pdev; pci_set_drvdata(pdev, dev); @@ -75,6 +80,8 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) err_drv_dev_register: vbox_driver_unload(dev); err_vbox_driver_load: + pci_disable_device(pdev); + err_pci_enable: drm_dev_put(dev); err_drv_alloc: return ret; From 65aac17423284634169489f298169c3e3f099cc7 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 10 Sep 2018 20:30:39 +0200 Subject: [PATCH 0879/1762] staging: vboxvideo: Change address of scanout buffer on page-flip Commit 2408898e3b6c ("staging: vboxvideo: Add page-flip support") only calls vbox_crtc_do_set_base() on page-flips, but despite that function's name it only pins the new fb, unpins the old fb and sets vbox_crtc->fb_offset. It does not program the hardware to scan out at the new vbox_crtc->fb_offset value. This was causing only every other frame (assuming page-flipping between 2 buffers) to be shown since we kept scanning out of the old (now unpinned!) buffer. This commit fixes this by adding code to vbox_crtc_page_flip() to tell the hardware to scanout from the new fb_offset. Fixes: 2408898e3b6c ("staging: vboxvideo: Add page-flip support") Cc: Steve Longerbeam Signed-off-by: Hans de Goede Signed-off-by: Greg Kroah-Hartman --- drivers/staging/vboxvideo/vbox_mode.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/staging/vboxvideo/vbox_mode.c b/drivers/staging/vboxvideo/vbox_mode.c index a83eac8668d0..79836c8fb909 100644 --- a/drivers/staging/vboxvideo/vbox_mode.c +++ b/drivers/staging/vboxvideo/vbox_mode.c @@ -323,6 +323,11 @@ static int vbox_crtc_page_flip(struct drm_crtc *crtc, if (rc) return rc; + mutex_lock(&vbox->hw_mutex); + vbox_set_view(crtc); + vbox_do_modeset(crtc, &crtc->mode); + mutex_unlock(&vbox->hw_mutex); + spin_lock_irqsave(&drm->event_lock, flags); if (event) From 01c5f85aebaaddfd7e6051fb2ec80c1d4b463554 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 11 Sep 2018 10:59:53 -0600 Subject: [PATCH 0880/1762] blk-cgroup: increase number of supported policies After merging the iolatency policy, we potentially now have 4 policies being registered, but only support 3. This causes one of them to fail loading. Takashi reports that BFQ no longer works for him, because it fails to load due to policy registration failure. Bump to 5 policies, and also add a warning for when we have exceeded the global amount. If we have to touch this again, we should switch to a dynamic scheme instead. Reported-by: Takashi Iwai Reviewed-by: Jeff Moyer Tested-by: Takashi Iwai Signed-off-by: Jens Axboe --- block/blk-cgroup.c | 4 +++- include/linux/blkdev.h | 2 +- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index c19f9078da1e..c630e02836a8 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -1510,8 +1510,10 @@ int blkcg_policy_register(struct blkcg_policy *pol) for (i = 0; i < BLKCG_MAX_POLS; i++) if (!blkcg_policy[i]) break; - if (i >= BLKCG_MAX_POLS) + if (i >= BLKCG_MAX_POLS) { + pr_warn("blkcg_policy_register: BLKCG_MAX_POLS too small\n"); goto err_unlock; + } /* Make sure cpd/pd_alloc_fn and cpd/pd_free_fn in pairs */ if ((!pol->cpd_alloc_fn ^ !pol->cpd_free_fn) || diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index d6869e0e2b64..6980014357d4 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -54,7 +54,7 @@ struct blk_stat_callback; * Maximum number of blkcg policies allowed to be registered concurrently. * Defined here to simplify include dependency. */ -#define BLKCG_MAX_POLS 3 +#define BLKCG_MAX_POLS 5 typedef void (rq_end_io_fn)(struct request *, blk_status_t); From 5db48a8d01319620d390bf6d9da5410be14f98e3 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 11 Sep 2018 14:10:52 -0300 Subject: [PATCH 0881/1762] tools headers uapi: Update tools's copy of linux/if_link.h To get the changes in: 3e7a50ceb11e ("net: report min and max mtu network device settings") 2756f68c3149 ("net: bridge: add support for backup port") a25717d2b604 ("xdp: support simultaneous driver and hw XDP attachment") 4f91da26c811 ("xdp: add per mode attributes for attached programs") f203b76d7809 ("xfrm: Add virtual xfrm interfaces") Silencing this libbpf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h' Cc: Adrian Hunter Cc: Daniel Borkmann Cc: David Ahern Cc: David S. Miller Cc: Jakub Kicinski Cc: Jiri Olsa Cc: Namhyung Kim Cc: Nikolay Aleksandrov Cc: Steffen Klassert Cc: Stephen Hemminger Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-xd9ztioa894zemv8ag8kg64u@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/include/uapi/linux/if_link.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/tools/include/uapi/linux/if_link.h b/tools/include/uapi/linux/if_link.h index cf01b6824244..43391e2d1153 100644 --- a/tools/include/uapi/linux/if_link.h +++ b/tools/include/uapi/linux/if_link.h @@ -164,6 +164,8 @@ enum { IFLA_CARRIER_UP_COUNT, IFLA_CARRIER_DOWN_COUNT, IFLA_NEW_IFINDEX, + IFLA_MIN_MTU, + IFLA_MAX_MTU, __IFLA_MAX }; @@ -334,6 +336,7 @@ enum { IFLA_BRPORT_GROUP_FWD_MASK, IFLA_BRPORT_NEIGH_SUPPRESS, IFLA_BRPORT_ISOLATED, + IFLA_BRPORT_BACKUP_PORT, __IFLA_BRPORT_MAX }; #define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1) @@ -459,6 +462,16 @@ enum { #define IFLA_MACSEC_MAX (__IFLA_MACSEC_MAX - 1) +/* XFRM section */ +enum { + IFLA_XFRM_UNSPEC, + IFLA_XFRM_LINK, + IFLA_XFRM_IF_ID, + __IFLA_XFRM_MAX +}; + +#define IFLA_XFRM_MAX (__IFLA_XFRM_MAX - 1) + enum macsec_validation_type { MACSEC_VALIDATE_DISABLED = 0, MACSEC_VALIDATE_CHECK = 1, @@ -920,6 +933,7 @@ enum { XDP_ATTACHED_DRV, XDP_ATTACHED_SKB, XDP_ATTACHED_HW, + XDP_ATTACHED_MULTI, }; enum { @@ -928,6 +942,9 @@ enum { IFLA_XDP_ATTACHED, IFLA_XDP_FLAGS, IFLA_XDP_PROG_ID, + IFLA_XDP_DRV_PROG_ID, + IFLA_XDP_SKB_PROG_ID, + IFLA_XDP_HW_PROG_ID, __IFLA_XDP_MAX, }; From 03db8b583d1c3c84963e08e2abf6c79081da5c31 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 7 Sep 2018 11:51:16 +0300 Subject: [PATCH 0882/1762] perf tools: Fix maps__find_symbol_by_name() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 1c5aae7710bb ("perf machine: Create maps for x86 PTI entry trampolines") revealed a problem with maps__find_symbol_by_name() that resulted in probes not being found e.g. $ sudo perf probe xsk_mmap xsk_mmap is out of .text, skip it. Probe point 'xsk_mmap' not found. Error: Failed to add events. maps__find_symbol_by_name() can optionally return the map of the found symbol. It can get the map wrong because, in fact, the symbol is found on the map's dso, not allowing for the possibility that the dso has more than one map. Fix by always checking the map contains the symbol. Reported-by: Björn Töpel Signed-off-by: Adrian Hunter Tested-by: Björn Töpel Cc: Jiri Olsa Cc: stable@vger.kernel.org Fixes: 1c5aae7710bb ("perf machine: Create maps for x86 PTI entry trampolines") Link: http://lkml.kernel.org/r/20180907085116.25782-1-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/map.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index 36d0763311ef..6a6929f208b4 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -576,6 +576,13 @@ struct symbol *map_groups__find_symbol(struct map_groups *mg, return NULL; } +static bool map__contains_symbol(struct map *map, struct symbol *sym) +{ + u64 ip = map->unmap_ip(map, sym->start); + + return ip >= map->start && ip < map->end; +} + struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name, struct map **mapp) { @@ -591,6 +598,10 @@ struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name, if (sym == NULL) continue; + if (!map__contains_symbol(pos, sym)) { + sym = NULL; + continue; + } if (mapp != NULL) *mapp = pos; goto out; From b1f382178d150f256c1cf95b9341fda6eb764459 Mon Sep 17 00:00:00 2001 From: Ross Zwisler Date: Tue, 11 Sep 2018 13:31:16 -0400 Subject: [PATCH 0883/1762] ext4: close race between direct IO and ext4_break_layouts() If the refcount of a page is lowered between the time that it is returned by dax_busy_page() and when the refcount is again checked in ext4_break_layouts() => ___wait_var_event(), the waiting function ext4_wait_dax_page() will never be called. This means that ext4_break_layouts() will still have 'retry' set to false, so we'll stop looping and never check the refcount of other pages in this inode. Instead, always continue looping as long as dax_layout_busy_page() gives us a page which it found with an elevated refcount. Signed-off-by: Ross Zwisler Reviewed-by: Jan Kara Signed-off-by: Jan Kara Signed-off-by: Theodore Ts'o Cc: stable@vger.kernel.org --- fs/ext4/inode.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 694f31364206..723058bfe43b 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4195,9 +4195,8 @@ int ext4_update_disksize_before_punch(struct inode *inode, loff_t offset, return 0; } -static void ext4_wait_dax_page(struct ext4_inode_info *ei, bool *did_unlock) +static void ext4_wait_dax_page(struct ext4_inode_info *ei) { - *did_unlock = true; up_write(&ei->i_mmap_sem); schedule(); down_write(&ei->i_mmap_sem); @@ -4207,14 +4206,12 @@ int ext4_break_layouts(struct inode *inode) { struct ext4_inode_info *ei = EXT4_I(inode); struct page *page; - bool retry; int error; if (WARN_ON_ONCE(!rwsem_is_locked(&ei->i_mmap_sem))) return -EINVAL; do { - retry = false; page = dax_layout_busy_page(inode->i_mapping); if (!page) return 0; @@ -4222,8 +4219,8 @@ int ext4_break_layouts(struct inode *inode) error = ___wait_var_event(&page->_refcount, atomic_read(&page->_refcount) == 1, TASK_INTERRUPTIBLE, 0, 0, - ext4_wait_dax_page(ei, &retry)); - } while (error == 0 && retry); + ext4_wait_dax_page(ei)); + } while (error == 0); return error; } From 24d6638302b48328a58c13439276d4531af4ca7d Mon Sep 17 00:00:00 2001 From: Katsuhiro Suzuki Date: Tue, 11 Sep 2018 01:39:32 +0900 Subject: [PATCH 0884/1762] ASoC: rockchip: add missing INTERLEAVED PCM attribute This patch adds SNDRV_PCM_INFO_INTERLEAVED into PCM hardware info. Signed-off-by: Katsuhiro Suzuki Signed-off-by: Mark Brown --- sound/soc/rockchip/rockchip_pcm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/soc/rockchip/rockchip_pcm.c b/sound/soc/rockchip/rockchip_pcm.c index f77538319221..9e7b5fa4cf59 100644 --- a/sound/soc/rockchip/rockchip_pcm.c +++ b/sound/soc/rockchip/rockchip_pcm.c @@ -21,7 +21,8 @@ static const struct snd_pcm_hardware snd_rockchip_hardware = { .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE | - SNDRV_PCM_INFO_RESUME, + SNDRV_PCM_INFO_RESUME | + SNDRV_PCM_INFO_INTERLEAVED, .period_bytes_min = 32, .period_bytes_max = 8192, .periods_min = 1, From 0165de983272d1fae0809ed9db47c46a412279bc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Mon, 10 Sep 2018 15:52:55 +0200 Subject: [PATCH 0885/1762] drm/amdgpu: fix error handling in amdgpu_cs_user_fence_chunk MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Slowly leaking memory one page at a time :) Signed-off-by: Christian König Reviewed-by: Andrey Grodzovsky Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 1b5a0a73d770..b31d121a876b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -39,6 +39,7 @@ static int amdgpu_cs_user_fence_chunk(struct amdgpu_cs_parser *p, { struct drm_gem_object *gobj; unsigned long size; + int r; gobj = drm_gem_object_lookup(p->filp, data->handle); if (gobj == NULL) @@ -50,20 +51,26 @@ static int amdgpu_cs_user_fence_chunk(struct amdgpu_cs_parser *p, p->uf_entry.tv.shared = true; p->uf_entry.user_pages = NULL; + drm_gem_object_put_unlocked(gobj); + size = amdgpu_bo_size(p->uf_entry.robj); - if (size != PAGE_SIZE || (data->offset + 8) > size) - return -EINVAL; + if (size != PAGE_SIZE || (data->offset + 8) > size) { + r = -EINVAL; + goto error_unref; + } + + if (amdgpu_ttm_tt_get_usermm(p->uf_entry.robj->tbo.ttm)) { + r = -EINVAL; + goto error_unref; + } *offset = data->offset; - drm_gem_object_put_unlocked(gobj); - - if (amdgpu_ttm_tt_get_usermm(p->uf_entry.robj->tbo.ttm)) { - amdgpu_bo_unref(&p->uf_entry.robj); - return -EINVAL; - } - return 0; + +error_unref: + amdgpu_bo_unref(&p->uf_entry.robj); + return r; } static int amdgpu_cs_bo_handles_chunk(struct amdgpu_cs_parser *p, From 6a92b11169a65b3f8cc512c75a252cbd0d096ba0 Mon Sep 17 00:00:00 2001 From: Boris Ostrovsky Date: Tue, 11 Sep 2018 15:55:38 -0400 Subject: [PATCH 0886/1762] x86/EISA: Don't probe EISA bus for Xen PV guests For unprivileged Xen PV guests this is normal memory and ioremap will not be able to properly map it. While at it, since ioremap may return NULL, add a test for pointer's validity. Reported-by: Andy Smith Signed-off-by: Boris Ostrovsky Signed-off-by: Thomas Gleixner Cc: hpa@zytor.com Cc: xen-devel@lists.xenproject.org Cc: jgross@suse.com Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180911195538.23289-1-boris.ostrovsky@oracle.com --- arch/x86/kernel/eisa.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/eisa.c b/arch/x86/kernel/eisa.c index f260e452e4f8..e8c8c5d78dbd 100644 --- a/arch/x86/kernel/eisa.c +++ b/arch/x86/kernel/eisa.c @@ -7,11 +7,17 @@ #include #include +#include + static __init int eisa_bus_probe(void) { - void __iomem *p = ioremap(0x0FFFD9, 4); + void __iomem *p; - if (readl(p) == 'E' + ('I'<<8) + ('S'<<16) + ('A'<<24)) + if (xen_pv_domain() && !xen_initial_domain()) + return 0; + + p = ioremap(0x0FFFD9, 4); + if (p && readl(p) == 'E' + ('I' << 8) + ('S' << 16) + ('A' << 24)) EISA_bus = 1; iounmap(p); return 0; From 425333bf3a7743715c17e503049d0837d6c4a603 Mon Sep 17 00:00:00 2001 From: Alexey Kardashevskiy Date: Mon, 10 Sep 2018 18:29:07 +1000 Subject: [PATCH 0887/1762] KVM: PPC: Avoid marking DMA-mapped pages dirty in real mode At the moment the real mode handler of H_PUT_TCE calls iommu_tce_xchg_rm() which in turn reads the old TCE and if it was a valid entry, marks the physical page dirty if it was mapped for writing. Since it is in real mode, realmode_pfn_to_page() is used instead of pfn_to_page() to get the page struct. However SetPageDirty() itself reads the compound page head and returns a virtual address for the head page struct and setting dirty bit for that kills the system. This adds additional dirty bit tracking into the MM/IOMMU API for use in the real mode. Note that this does not change how VFIO and KVM (in virtual mode) set this bit. The KVM (real mode) changes include: - use the lowest bit of the cached host phys address to carry the dirty bit; - mark pages dirty when they are unpinned which happens when the preregistered memory is released which always happens in virtual mode; - add mm_iommu_ua_mark_dirty_rm() helper to set delayed dirty bit; - change iommu_tce_xchg_rm() to take the kvm struct for the mm to use in the new mm_iommu_ua_mark_dirty_rm() helper; - move iommu_tce_xchg_rm() to book3s_64_vio_hv.c (which is the only caller anyway) to reduce the real mode KVM and IOMMU knowledge across different subsystems. This removes realmode_pfn_to_page() as it is not used anymore. While we at it, remove some EXPORT_SYMBOL_GPL() as that code is for the real mode only and modules cannot call it anyway. Signed-off-by: Alexey Kardashevskiy Reviewed-by: David Gibson Signed-off-by: Paul Mackerras --- arch/powerpc/include/asm/book3s/64/pgtable.h | 1 - arch/powerpc/include/asm/iommu.h | 2 - arch/powerpc/include/asm/mmu_context.h | 1 + arch/powerpc/kernel/iommu.c | 25 ---------- arch/powerpc/kvm/book3s_64_vio_hv.c | 39 ++++++++++++---- arch/powerpc/mm/init_64.c | 49 -------------------- arch/powerpc/mm/mmu_context_iommu.c | 34 ++++++++++++-- 7 files changed, 62 insertions(+), 89 deletions(-) diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index 13a688fc8cd0..2fdc865ca374 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -1051,7 +1051,6 @@ static inline void vmemmap_remove_mapping(unsigned long start, return hash__vmemmap_remove_mapping(start, page_size); } #endif -struct page *realmode_pfn_to_page(unsigned long pfn); static inline pte_t pmd_pte(pmd_t pmd) { diff --git a/arch/powerpc/include/asm/iommu.h b/arch/powerpc/include/asm/iommu.h index ab3a4fba38e3..3d4b88cb8599 100644 --- a/arch/powerpc/include/asm/iommu.h +++ b/arch/powerpc/include/asm/iommu.h @@ -220,8 +220,6 @@ extern void iommu_del_device(struct device *dev); extern int __init tce_iommu_bus_notifier_init(void); extern long iommu_tce_xchg(struct iommu_table *tbl, unsigned long entry, unsigned long *hpa, enum dma_data_direction *direction); -extern long iommu_tce_xchg_rm(struct iommu_table *tbl, unsigned long entry, - unsigned long *hpa, enum dma_data_direction *direction); #else static inline void iommu_register_group(struct iommu_table_group *table_group, int pci_domain_number, diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h index b2f89b621b15..b694d6af1150 100644 --- a/arch/powerpc/include/asm/mmu_context.h +++ b/arch/powerpc/include/asm/mmu_context.h @@ -38,6 +38,7 @@ extern long mm_iommu_ua_to_hpa(struct mm_iommu_table_group_mem_t *mem, unsigned long ua, unsigned int pageshift, unsigned long *hpa); extern long mm_iommu_ua_to_hpa_rm(struct mm_iommu_table_group_mem_t *mem, unsigned long ua, unsigned int pageshift, unsigned long *hpa); +extern void mm_iommu_ua_mark_dirty_rm(struct mm_struct *mm, unsigned long ua); extern long mm_iommu_mapped_inc(struct mm_iommu_table_group_mem_t *mem); extern void mm_iommu_mapped_dec(struct mm_iommu_table_group_mem_t *mem); #endif diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c index af7a20dc6e09..19b4c628f3be 100644 --- a/arch/powerpc/kernel/iommu.c +++ b/arch/powerpc/kernel/iommu.c @@ -1013,31 +1013,6 @@ long iommu_tce_xchg(struct iommu_table *tbl, unsigned long entry, } EXPORT_SYMBOL_GPL(iommu_tce_xchg); -#ifdef CONFIG_PPC_BOOK3S_64 -long iommu_tce_xchg_rm(struct iommu_table *tbl, unsigned long entry, - unsigned long *hpa, enum dma_data_direction *direction) -{ - long ret; - - ret = tbl->it_ops->exchange_rm(tbl, entry, hpa, direction); - - if (!ret && ((*direction == DMA_FROM_DEVICE) || - (*direction == DMA_BIDIRECTIONAL))) { - struct page *pg = realmode_pfn_to_page(*hpa >> PAGE_SHIFT); - - if (likely(pg)) { - SetPageDirty(pg); - } else { - tbl->it_ops->exchange_rm(tbl, entry, hpa, direction); - ret = -EFAULT; - } - } - - return ret; -} -EXPORT_SYMBOL_GPL(iommu_tce_xchg_rm); -#endif - int iommu_take_ownership(struct iommu_table *tbl) { unsigned long flags, i, sz = (tbl->it_size + 7) >> 3; diff --git a/arch/powerpc/kvm/book3s_64_vio_hv.c b/arch/powerpc/kvm/book3s_64_vio_hv.c index 506a4d400458..6821ead4b4eb 100644 --- a/arch/powerpc/kvm/book3s_64_vio_hv.c +++ b/arch/powerpc/kvm/book3s_64_vio_hv.c @@ -187,12 +187,35 @@ long kvmppc_gpa_to_ua(struct kvm *kvm, unsigned long gpa, EXPORT_SYMBOL_GPL(kvmppc_gpa_to_ua); #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE -static void kvmppc_rm_clear_tce(struct iommu_table *tbl, unsigned long entry) +static long iommu_tce_xchg_rm(struct mm_struct *mm, struct iommu_table *tbl, + unsigned long entry, unsigned long *hpa, + enum dma_data_direction *direction) +{ + long ret; + + ret = tbl->it_ops->exchange_rm(tbl, entry, hpa, direction); + + if (!ret && ((*direction == DMA_FROM_DEVICE) || + (*direction == DMA_BIDIRECTIONAL))) { + __be64 *pua = IOMMU_TABLE_USERSPACE_ENTRY_RM(tbl, entry); + /* + * kvmppc_rm_tce_iommu_do_map() updates the UA cache after + * calling this so we still get here a valid UA. + */ + if (pua && *pua) + mm_iommu_ua_mark_dirty_rm(mm, be64_to_cpu(*pua)); + } + + return ret; +} + +static void kvmppc_rm_clear_tce(struct kvm *kvm, struct iommu_table *tbl, + unsigned long entry) { unsigned long hpa = 0; enum dma_data_direction dir = DMA_NONE; - iommu_tce_xchg_rm(tbl, entry, &hpa, &dir); + iommu_tce_xchg_rm(kvm->mm, tbl, entry, &hpa, &dir); } static long kvmppc_rm_tce_iommu_mapped_dec(struct kvm *kvm, @@ -224,7 +247,7 @@ static long kvmppc_rm_tce_iommu_do_unmap(struct kvm *kvm, unsigned long hpa = 0; long ret; - if (iommu_tce_xchg_rm(tbl, entry, &hpa, &dir)) + if (iommu_tce_xchg_rm(kvm->mm, tbl, entry, &hpa, &dir)) /* * real mode xchg can fail if struct page crosses * a page boundary @@ -236,7 +259,7 @@ static long kvmppc_rm_tce_iommu_do_unmap(struct kvm *kvm, ret = kvmppc_rm_tce_iommu_mapped_dec(kvm, tbl, entry); if (ret) - iommu_tce_xchg_rm(tbl, entry, &hpa, &dir); + iommu_tce_xchg_rm(kvm->mm, tbl, entry, &hpa, &dir); return ret; } @@ -282,7 +305,7 @@ static long kvmppc_rm_tce_iommu_do_map(struct kvm *kvm, struct iommu_table *tbl, if (WARN_ON_ONCE_RM(mm_iommu_mapped_inc(mem))) return H_CLOSED; - ret = iommu_tce_xchg_rm(tbl, entry, &hpa, &dir); + ret = iommu_tce_xchg_rm(kvm->mm, tbl, entry, &hpa, &dir); if (ret) { mm_iommu_mapped_dec(mem); /* @@ -371,7 +394,7 @@ long kvmppc_rm_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, return ret; WARN_ON_ONCE_RM(1); - kvmppc_rm_clear_tce(stit->tbl, entry); + kvmppc_rm_clear_tce(vcpu->kvm, stit->tbl, entry); } kvmppc_tce_put(stt, entry, tce); @@ -520,7 +543,7 @@ long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu, goto unlock_exit; WARN_ON_ONCE_RM(1); - kvmppc_rm_clear_tce(stit->tbl, entry); + kvmppc_rm_clear_tce(vcpu->kvm, stit->tbl, entry); } kvmppc_tce_put(stt, entry + i, tce); @@ -571,7 +594,7 @@ long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu, return ret; WARN_ON_ONCE_RM(1); - kvmppc_rm_clear_tce(stit->tbl, entry); + kvmppc_rm_clear_tce(vcpu->kvm, stit->tbl, entry); } } diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c index 51ce091914f9..7a9886f98b0c 100644 --- a/arch/powerpc/mm/init_64.c +++ b/arch/powerpc/mm/init_64.c @@ -308,55 +308,6 @@ void register_page_bootmem_memmap(unsigned long section_nr, { } -/* - * We do not have access to the sparsemem vmemmap, so we fallback to - * walking the list of sparsemem blocks which we already maintain for - * the sake of crashdump. In the long run, we might want to maintain - * a tree if performance of that linear walk becomes a problem. - * - * realmode_pfn_to_page functions can fail due to: - * 1) As real sparsemem blocks do not lay in RAM continously (they - * are in virtual address space which is not available in the real mode), - * the requested page struct can be split between blocks so get_page/put_page - * may fail. - * 2) When huge pages are used, the get_page/put_page API will fail - * in real mode as the linked addresses in the page struct are virtual - * too. - */ -struct page *realmode_pfn_to_page(unsigned long pfn) -{ - struct vmemmap_backing *vmem_back; - struct page *page; - unsigned long page_size = 1 << mmu_psize_defs[mmu_vmemmap_psize].shift; - unsigned long pg_va = (unsigned long) pfn_to_page(pfn); - - for (vmem_back = vmemmap_list; vmem_back; vmem_back = vmem_back->list) { - if (pg_va < vmem_back->virt_addr) - continue; - - /* After vmemmap_list entry free is possible, need check all */ - if ((pg_va + sizeof(struct page)) <= - (vmem_back->virt_addr + page_size)) { - page = (struct page *) (vmem_back->phys + pg_va - - vmem_back->virt_addr); - return page; - } - } - - /* Probably that page struct is split between real pages */ - return NULL; -} -EXPORT_SYMBOL_GPL(realmode_pfn_to_page); - -#else - -struct page *realmode_pfn_to_page(unsigned long pfn) -{ - struct page *page = pfn_to_page(pfn); - return page; -} -EXPORT_SYMBOL_GPL(realmode_pfn_to_page); - #endif /* CONFIG_SPARSEMEM_VMEMMAP */ #ifdef CONFIG_PPC_BOOK3S_64 diff --git a/arch/powerpc/mm/mmu_context_iommu.c b/arch/powerpc/mm/mmu_context_iommu.c index c9ee9e23845f..56c2234cc6ae 100644 --- a/arch/powerpc/mm/mmu_context_iommu.c +++ b/arch/powerpc/mm/mmu_context_iommu.c @@ -18,11 +18,15 @@ #include #include #include +#include #include #include static DEFINE_MUTEX(mem_list_mutex); +#define MM_IOMMU_TABLE_GROUP_PAGE_DIRTY 0x1 +#define MM_IOMMU_TABLE_GROUP_PAGE_MASK ~(SZ_4K - 1) + struct mm_iommu_table_group_mem_t { struct list_head next; struct rcu_head rcu; @@ -263,6 +267,9 @@ static void mm_iommu_unpin(struct mm_iommu_table_group_mem_t *mem) if (!page) continue; + if (mem->hpas[i] & MM_IOMMU_TABLE_GROUP_PAGE_DIRTY) + SetPageDirty(page); + put_page(page); mem->hpas[i] = 0; } @@ -360,7 +367,6 @@ struct mm_iommu_table_group_mem_t *mm_iommu_lookup_rm(struct mm_struct *mm, return ret; } -EXPORT_SYMBOL_GPL(mm_iommu_lookup_rm); struct mm_iommu_table_group_mem_t *mm_iommu_find(struct mm_struct *mm, unsigned long ua, unsigned long entries) @@ -390,7 +396,7 @@ long mm_iommu_ua_to_hpa(struct mm_iommu_table_group_mem_t *mem, if (pageshift > mem->pageshift) return -EFAULT; - *hpa = *va | (ua & ~PAGE_MASK); + *hpa = (*va & MM_IOMMU_TABLE_GROUP_PAGE_MASK) | (ua & ~PAGE_MASK); return 0; } @@ -413,11 +419,31 @@ long mm_iommu_ua_to_hpa_rm(struct mm_iommu_table_group_mem_t *mem, if (!pa) return -EFAULT; - *hpa = *pa | (ua & ~PAGE_MASK); + *hpa = (*pa & MM_IOMMU_TABLE_GROUP_PAGE_MASK) | (ua & ~PAGE_MASK); return 0; } -EXPORT_SYMBOL_GPL(mm_iommu_ua_to_hpa_rm); + +extern void mm_iommu_ua_mark_dirty_rm(struct mm_struct *mm, unsigned long ua) +{ + struct mm_iommu_table_group_mem_t *mem; + long entry; + void *va; + unsigned long *pa; + + mem = mm_iommu_lookup_rm(mm, ua, PAGE_SIZE); + if (!mem) + return; + + entry = (ua - mem->ua) >> PAGE_SHIFT; + va = &mem->hpas[entry]; + + pa = (void *) vmalloc_to_phys(va); + if (!pa) + return; + + *pa |= MM_IOMMU_TABLE_GROUP_PAGE_DIRTY; +} long mm_iommu_mapped_inc(struct mm_iommu_table_group_mem_t *mem) { From 71d29f43b6332badc5598c656616a62575e83342 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Tue, 11 Sep 2018 20:48:34 +1000 Subject: [PATCH 0888/1762] KVM: PPC: Book3S HV: Don't use compound_order to determine host mapping size THP paths can defer splitting compound pages until after the actual remap and TLB flushes to split a huge PMD/PUD. This causes radix partition scope page table mappings to get out of synch with the host qemu page table mappings. This results in random memory corruption in the guest when running with THP. The easiest way to reproduce is use KVM balloon to free up a lot of memory in the guest and then shrink the balloon to give the memory back, while some work is being done in the guest. Cc: David Gibson Cc: "Aneesh Kumar K.V" Cc: kvm-ppc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Nicholas Piggin Signed-off-by: Paul Mackerras --- arch/powerpc/kvm/book3s_64_mmu_radix.c | 91 +++++++++++--------------- 1 file changed, 37 insertions(+), 54 deletions(-) diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index fd6e8c13685f..933c574e1cf7 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -525,8 +525,8 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, unsigned long ea, unsigned long dsisr) { struct kvm *kvm = vcpu->kvm; - unsigned long mmu_seq, pte_size; - unsigned long gpa, gfn, hva, pfn; + unsigned long mmu_seq; + unsigned long gpa, gfn, hva; struct kvm_memory_slot *memslot; struct page *page = NULL; long ret; @@ -623,9 +623,10 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, */ hva = gfn_to_hva_memslot(memslot, gfn); if (upgrade_p && __get_user_pages_fast(hva, 1, 1, &page) == 1) { - pfn = page_to_pfn(page); upgrade_write = true; } else { + unsigned long pfn; + /* Call KVM generic code to do the slow-path check */ pfn = __gfn_to_pfn_memslot(memslot, gfn, false, NULL, writing, upgrade_p); @@ -639,61 +640,43 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, } } - /* See if we can insert a 1GB or 2MB large PTE here */ - level = 0; - if (page && PageCompound(page)) { - pte_size = PAGE_SIZE << compound_order(compound_head(page)); - if (pte_size >= PUD_SIZE && - (gpa & (PUD_SIZE - PAGE_SIZE)) == - (hva & (PUD_SIZE - PAGE_SIZE))) { - level = 2; - pfn &= ~((PUD_SIZE >> PAGE_SHIFT) - 1); - } else if (pte_size >= PMD_SIZE && - (gpa & (PMD_SIZE - PAGE_SIZE)) == - (hva & (PMD_SIZE - PAGE_SIZE))) { - level = 1; - pfn &= ~((PMD_SIZE >> PAGE_SHIFT) - 1); + /* + * Read the PTE from the process' radix tree and use that + * so we get the shift and attribute bits. + */ + local_irq_disable(); + ptep = __find_linux_pte(vcpu->arch.pgdir, hva, NULL, &shift); + pte = *ptep; + local_irq_enable(); + + /* Get pte level from shift/size */ + if (shift == PUD_SHIFT && + (gpa & (PUD_SIZE - PAGE_SIZE)) == + (hva & (PUD_SIZE - PAGE_SIZE))) { + level = 2; + } else if (shift == PMD_SHIFT && + (gpa & (PMD_SIZE - PAGE_SIZE)) == + (hva & (PMD_SIZE - PAGE_SIZE))) { + level = 1; + } else { + level = 0; + if (shift > PAGE_SHIFT) { + /* + * If the pte maps more than one page, bring over + * bits from the virtual address to get the real + * address of the specific single page we want. + */ + unsigned long rpnmask = (1ul << shift) - PAGE_SIZE; + pte = __pte(pte_val(pte) | (hva & rpnmask)); } } - /* - * Compute the PTE value that we need to insert. - */ - if (page) { - pgflags = _PAGE_READ | _PAGE_EXEC | _PAGE_PRESENT | _PAGE_PTE | - _PAGE_ACCESSED; - if (writing || upgrade_write) - pgflags |= _PAGE_WRITE | _PAGE_DIRTY; - pte = pfn_pte(pfn, __pgprot(pgflags)); + pte = __pte(pte_val(pte) | _PAGE_EXEC | _PAGE_ACCESSED); + if (writing || upgrade_write) { + if (pte_val(pte) & _PAGE_WRITE) + pte = __pte(pte_val(pte) | _PAGE_DIRTY); } else { - /* - * Read the PTE from the process' radix tree and use that - * so we get the attribute bits. - */ - local_irq_disable(); - ptep = __find_linux_pte(vcpu->arch.pgdir, hva, NULL, &shift); - pte = *ptep; - local_irq_enable(); - if (shift == PUD_SHIFT && - (gpa & (PUD_SIZE - PAGE_SIZE)) == - (hva & (PUD_SIZE - PAGE_SIZE))) { - level = 2; - } else if (shift == PMD_SHIFT && - (gpa & (PMD_SIZE - PAGE_SIZE)) == - (hva & (PMD_SIZE - PAGE_SIZE))) { - level = 1; - } else if (shift && shift != PAGE_SHIFT) { - /* Adjust PFN */ - unsigned long mask = (1ul << shift) - PAGE_SIZE; - pte = __pte(pte_val(pte) | (hva & mask)); - } - pte = __pte(pte_val(pte) | _PAGE_EXEC | _PAGE_ACCESSED); - if (writing || upgrade_write) { - if (pte_val(pte) & _PAGE_WRITE) - pte = __pte(pte_val(pte) | _PAGE_DIRTY); - } else { - pte = __pte(pte_val(pte) & ~(_PAGE_WRITE | _PAGE_DIRTY)); - } + pte = __pte(pte_val(pte) & ~(_PAGE_WRITE | _PAGE_DIRTY)); } /* Allocate space in the tree and write the PTE */ From 679fcae46c8b2352bba3485d521da070cfbe68e6 Mon Sep 17 00:00:00 2001 From: Laura Abbott Date: Tue, 4 Sep 2018 11:47:40 -0700 Subject: [PATCH 0889/1762] scsi: iscsi: target: Don't use stack buffer for scatterlist Fedora got a bug report of a crash with iSCSI: kernel BUG at include/linux/scatterlist.h:143! ... RIP: 0010:iscsit_do_crypto_hash_buf+0x154/0x180 [iscsi_target_mod] ... Call Trace: ? iscsi_target_tx_thread+0x200/0x200 [iscsi_target_mod] iscsit_get_rx_pdu+0x4cd/0xa90 [iscsi_target_mod] ? native_sched_clock+0x3e/0xa0 ? iscsi_target_tx_thread+0x200/0x200 [iscsi_target_mod] iscsi_target_rx_thread+0x81/0xf0 [iscsi_target_mod] kthread+0x120/0x140 ? kthread_create_worker_on_cpu+0x70/0x70 ret_from_fork+0x3a/0x50 This is a BUG_ON for using a stack buffer with a scatterlist. There are two cases that trigger this bug. Switch to using a dynamically allocated buffer for one case and do not assign a NULL buffer in another case. Signed-off-by: Laura Abbott Reviewed-by: Mike Christie Signed-off-by: Martin K. Petersen --- drivers/target/iscsi/iscsi_target.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 9cdfccbdd06f..cc756a123fd8 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -1416,7 +1416,8 @@ static void iscsit_do_crypto_hash_buf(struct ahash_request *hash, sg_init_table(sg, ARRAY_SIZE(sg)); sg_set_buf(sg, buf, payload_length); - sg_set_buf(sg + 1, pad_bytes, padding); + if (padding) + sg_set_buf(sg + 1, pad_bytes, padding); ahash_request_set_crypt(hash, sg, data_crc, payload_length + padding); @@ -3910,10 +3911,14 @@ static bool iscsi_target_check_conn_state(struct iscsi_conn *conn) static void iscsit_get_rx_pdu(struct iscsi_conn *conn) { int ret; - u8 buffer[ISCSI_HDR_LEN], opcode; + u8 *buffer, opcode; u32 checksum = 0, digest = 0; struct kvec iov; + buffer = kcalloc(ISCSI_HDR_LEN, sizeof(*buffer), GFP_KERNEL); + if (!buffer) + return; + while (!kthread_should_stop()) { /* * Ensure that both TX and RX per connection kthreads @@ -3921,7 +3926,6 @@ static void iscsit_get_rx_pdu(struct iscsi_conn *conn) */ iscsit_thread_check_cpumask(conn, current, 0); - memset(buffer, 0, ISCSI_HDR_LEN); memset(&iov, 0, sizeof(struct kvec)); iov.iov_base = buffer; @@ -3930,7 +3934,7 @@ static void iscsit_get_rx_pdu(struct iscsi_conn *conn) ret = rx_data(conn, &iov, 1, ISCSI_HDR_LEN); if (ret != ISCSI_HDR_LEN) { iscsit_rx_thread_wait_for_tcp(conn); - return; + break; } if (conn->conn_ops->HeaderDigest) { @@ -3940,7 +3944,7 @@ static void iscsit_get_rx_pdu(struct iscsi_conn *conn) ret = rx_data(conn, &iov, 1, ISCSI_CRC_LEN); if (ret != ISCSI_CRC_LEN) { iscsit_rx_thread_wait_for_tcp(conn); - return; + break; } iscsit_do_crypto_hash_buf(conn->conn_rx_hash, buffer, @@ -3964,7 +3968,7 @@ static void iscsit_get_rx_pdu(struct iscsi_conn *conn) } if (conn->conn_state == TARG_CONN_STATE_IN_LOGOUT) - return; + break; opcode = buffer[0] & ISCSI_OPCODE_MASK; @@ -3975,13 +3979,15 @@ static void iscsit_get_rx_pdu(struct iscsi_conn *conn) " while in Discovery Session, rejecting.\n", opcode); iscsit_add_reject(conn, ISCSI_REASON_PROTOCOL_ERROR, buffer); - return; + break; } ret = iscsi_target_rx_opcode(conn, buffer); if (ret < 0) - return; + break; } + + kfree(buffer); } int iscsi_target_rx_thread(void *arg) From cbe3fd39d223f14b1c60c80fe9347a3dd08c2edb Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 8 Sep 2018 11:42:27 +0300 Subject: [PATCH 0890/1762] scsi: qla2xxx: Fix an endian bug in fcpcmd_is_corrupted() We should first do the le16_to_cpu endian conversion and then apply the FCP_CMD_LENGTH_MASK mask. Fixes: 5f35509db179 ("qla2xxx: Terminate exchange if corrupted") Signed-off-by: Dan Carpenter Acked-by: Quinn Tran Acked-by: Himanshu Madhani Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_target.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h index fecf96f0225c..199d3ba1916d 100644 --- a/drivers/scsi/qla2xxx/qla_target.h +++ b/drivers/scsi/qla2xxx/qla_target.h @@ -374,8 +374,8 @@ struct atio_from_isp { static inline int fcpcmd_is_corrupted(struct atio *atio) { if (atio->entry_type == ATIO_TYPE7 && - (le16_to_cpu(atio->attr_n_length & FCP_CMD_LENGTH_MASK) < - FCP_CMD_LENGTH_MIN)) + ((le16_to_cpu(atio->attr_n_length) & FCP_CMD_LENGTH_MASK) < + FCP_CMD_LENGTH_MIN)) return 1; else return 0; From d8a5281035895cdb5ff77756eff72966ec76edd0 Mon Sep 17 00:00:00 2001 From: Dennis Dalessandro Date: Wed, 5 Sep 2018 16:08:03 +0000 Subject: [PATCH 0891/1762] PCI: Fix faulty logic in pci_reset_bus() The pci_reset_bus() function calls pci_probe_reset_slot() to determine whether to call the slot or bus reset. The check has faulty logic in that it does not account for pci_probe_reset_slot() being able to return an errno. Fix by only calling the slot reset when the function returns 0. Fixes: 811c5cb37df4 ("PCI: Unify try slot and bus reset API") Signed-off-by: Dennis Dalessandro Signed-off-by: Bjorn Helgaas Reviewed-by: Michael J. Ruhl Cc: Sinan Kaya --- drivers/pci/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 29ff9619b5fa..30b260332a10 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -5200,7 +5200,7 @@ static int __pci_reset_bus(struct pci_bus *bus) */ int pci_reset_bus(struct pci_dev *pdev) { - return pci_probe_reset_slot(pdev->slot) ? + return (!pci_probe_reset_slot(pdev->slot)) ? __pci_reset_slot(pdev->slot) : __pci_reset_bus(pdev->bus); } EXPORT_SYMBOL_GPL(pci_reset_bus); From bfc456060d0cbcf6902a436d358b60cb1534668c Mon Sep 17 00:00:00 2001 From: Dennis Dalessandro Date: Fri, 31 Aug 2018 10:34:14 -0700 Subject: [PATCH 0892/1762] IB/hfi1,PCI: Allow bus reset while probing Calling into the new API to reset the secondary bus results in a deadlock. This occurs because the device/bus is already locked at probe time. Reverting back to the old behavior while the API is improved. Link: https://bugzilla.kernel.org/show_bug.cgi?id=200985 Fixes: c6a44ba950d1 ("PCI: Rename pci_try_reset_bus() to pci_reset_bus()") Fixes: 409888e0966e ("IB/hfi1: Use pci_try_reset_bus() for initiating PCI Secondary Bus Reset") Signed-off-by: Dennis Dalessandro Signed-off-by: Bjorn Helgaas Reviewed-by: Michael J. Ruhl Cc: Sinan Kaya --- drivers/infiniband/hw/hfi1/pcie.c | 11 ++++------- drivers/pci/pci.c | 1 + include/linux/pci.h | 3 +++ 3 files changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/pcie.c b/drivers/infiniband/hw/hfi1/pcie.c index eec83757d55f..6c967dde58e7 100644 --- a/drivers/infiniband/hw/hfi1/pcie.c +++ b/drivers/infiniband/hw/hfi1/pcie.c @@ -893,14 +893,11 @@ static int trigger_sbr(struct hfi1_devdata *dd) } /* - * A secondary bus reset (SBR) issues a hot reset to our device. - * The following routine does a 1s wait after the reset is dropped - * per PCI Trhfa (recovery time). PCIe 3.0 section 6.6.1 - - * Conventional Reset, paragraph 3, line 35 also says that a 1s - * delay after a reset is required. Per spec requirements, - * the link is either working or not after that point. + * This is an end around to do an SBR during probe time. A new API needs + * to be implemented to have cleaner interface but this fixes the + * current brokenness */ - return pci_reset_bus(dev); + return pci_bridge_secondary_bus_reset(dev->bus->self); } /* diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 30b260332a10..1835f3a7aa8d 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -4547,6 +4547,7 @@ int pci_bridge_secondary_bus_reset(struct pci_dev *dev) return pci_dev_wait(dev, "bus reset", PCIE_RESET_READY_POLL_MS); } +EXPORT_SYMBOL_GPL(pci_bridge_secondary_bus_reset); static int pci_parent_bus_reset(struct pci_dev *dev, int probe) { diff --git a/include/linux/pci.h b/include/linux/pci.h index e72ca8dd6241..6925828f9f25 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1235,6 +1235,9 @@ void pci_bus_remove_resources(struct pci_bus *bus); int devm_request_pci_bus_resources(struct device *dev, struct list_head *resources); +/* Temporary until new and working PCI SBR API in place */ +int pci_bridge_secondary_bus_reset(struct pci_dev *dev); + #define pci_bus_for_each_resource(bus, res, i) \ for (i = 0; \ (res = pci_bus_resource_n(bus, i)) || i < PCI_BRIDGE_RESOURCE_NUM; \ From 9d27e39d309c93025ae6aa97236af15bef2a5f1f Mon Sep 17 00:00:00 2001 From: Felix Kuehling Date: Mon, 10 Sep 2018 15:27:42 -0400 Subject: [PATCH 0893/1762] PCI: Fix enabling of PASID on RC integrated endpoints Set the eetlp_prefix_path on PCIE_EXP_TYPE_RC_END devices to allow PASID to be enabled on them. This fixes IOMMUv2 initialization on AMD Carrizo APUs. Link: https://bugzilla.kernel.org/show_bug.cgi?id=201079 Fixes: 7ce3f912ae ("PCI: Enable PASID only if entire path supports End-End TLP prefixes") Signed-off-by: Felix Kuehling Signed-off-by: Bjorn Helgaas --- drivers/pci/probe.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index ec784009a36b..201f9e5ff55c 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -2074,6 +2074,7 @@ static void pci_configure_eetlp_prefix(struct pci_dev *dev) { #ifdef CONFIG_PCI_PASID struct pci_dev *bridge; + int pcie_type; u32 cap; if (!pci_is_pcie(dev)) @@ -2083,7 +2084,9 @@ static void pci_configure_eetlp_prefix(struct pci_dev *dev) if (!(cap & PCI_EXP_DEVCAP2_EE_PREFIX)) return; - if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT) + pcie_type = pci_pcie_type(dev); + if (pcie_type == PCI_EXP_TYPE_ROOT_PORT || + pcie_type == PCI_EXP_TYPE_RC_END) dev->eetlp_prefix_path = 1; else { bridge = pci_upstream_bridge(dev); From b90ca5cc32f59bb214847c6855959702f00c6801 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Tue, 11 Sep 2018 21:27:44 -0700 Subject: [PATCH 0894/1762] filesystem-dax: Fix use of zero page Use my_zero_pfn instead of ZERO_PAGE(), and pass the vaddr to it instead of zero so it works on MIPS and s390 who reference the vaddr to select a zero page. Cc: Fixes: 91d25ba8a6b0 ("dax: use common 4k zero page for dax mmap reads") Signed-off-by: Matthew Wilcox Reviewed-by: Ross Zwisler Signed-off-by: Dan Williams --- fs/dax.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) diff --git a/fs/dax.c b/fs/dax.c index f32d7125ad0f..b68ce484e1be 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -1120,21 +1120,12 @@ static vm_fault_t dax_load_hole(struct address_space *mapping, void *entry, { struct inode *inode = mapping->host; unsigned long vaddr = vmf->address; - vm_fault_t ret = VM_FAULT_NOPAGE; - struct page *zero_page; - pfn_t pfn; + pfn_t pfn = pfn_to_pfn_t(my_zero_pfn(vaddr)); + vm_fault_t ret; - zero_page = ZERO_PAGE(0); - if (unlikely(!zero_page)) { - ret = VM_FAULT_OOM; - goto out; - } - - pfn = page_to_pfn_t(zero_page); dax_insert_mapping_entry(mapping, vmf, entry, pfn, RADIX_DAX_ZERO_PAGE, false); ret = vmf_insert_mixed(vmf->vma, vaddr, pfn); -out: trace_dax_load_hole(inode, vmf, ret); return ret; } From 8e966fab8eeb45db9f5a570ac4521f684d9696e1 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Wed, 12 Sep 2018 13:25:19 +0900 Subject: [PATCH 0895/1762] xtensa: remove unnecessary KBUILD_SRC ifeq conditional You can always prefix variant/platform header search paths with $(srctree)/ because $(srctree) is '.' for in-tree building. Signed-off-by: Masahiro Yamada Signed-off-by: Max Filippov --- arch/xtensa/Makefile | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile index 295c120ed099..d67e30faff9c 100644 --- a/arch/xtensa/Makefile +++ b/arch/xtensa/Makefile @@ -64,11 +64,7 @@ endif vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y)) plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y)) -ifeq ($(KBUILD_SRC),) -KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs)) -else KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs)) -endif KBUILD_DEFCONFIG := iss_defconfig From 4a7f50f78c221aac7253ea7059e1986eb622b0e5 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Tue, 11 Sep 2018 22:12:59 -0700 Subject: [PATCH 0896/1762] xtensa: enable SG chaining in Kconfig Signed-off-by: Max Filippov --- arch/xtensa/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 04d038f3b6fa..b9ad83a0ee5d 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -4,6 +4,7 @@ config ZONE_DMA config XTENSA def_bool y + select ARCH_HAS_SG_CHAIN select ARCH_HAS_SYNC_DMA_FOR_CPU select ARCH_HAS_SYNC_DMA_FOR_DEVICE select ARCH_NO_COHERENT_DMA_MMAP if !MMU From 2d946e5bcdabc1deef72d01bc92a2801c71d6d8d Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sun, 9 Sep 2018 21:26:23 +0200 Subject: [PATCH 0897/1762] MIPS: lantiq: dma: add dev pointer dma_zalloc_coherent() now crashes if no dev pointer is given. Add a dev pointer to the ltq_dma_channel structure and fill it in the driver using it. This fixes a bug introduced in kernel 4.19. Signed-off-by: Hauke Mehrtens Signed-off-by: David S. Miller --- arch/mips/include/asm/mach-lantiq/xway/xway_dma.h | 1 + arch/mips/lantiq/xway/dma.c | 4 ++-- drivers/net/ethernet/lantiq_etop.c | 1 + 3 files changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h b/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h index 4901833498f7..8441b2698e64 100644 --- a/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h +++ b/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h @@ -40,6 +40,7 @@ struct ltq_dma_channel { int desc; /* the current descriptor */ struct ltq_dma_desc *desc_base; /* the descriptor base */ int phys; /* physical addr */ + struct device *dev; }; enum { diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c index 4b9fbb6744ad..664f2f7f55c1 100644 --- a/arch/mips/lantiq/xway/dma.c +++ b/arch/mips/lantiq/xway/dma.c @@ -130,7 +130,7 @@ ltq_dma_alloc(struct ltq_dma_channel *ch) unsigned long flags; ch->desc = 0; - ch->desc_base = dma_zalloc_coherent(NULL, + ch->desc_base = dma_zalloc_coherent(ch->dev, LTQ_DESC_NUM * LTQ_DESC_SIZE, &ch->phys, GFP_ATOMIC); @@ -182,7 +182,7 @@ ltq_dma_free(struct ltq_dma_channel *ch) if (!ch->desc_base) return; ltq_dma_close(ch); - dma_free_coherent(NULL, LTQ_DESC_NUM * LTQ_DESC_SIZE, + dma_free_coherent(ch->dev, LTQ_DESC_NUM * LTQ_DESC_SIZE, ch->desc_base, ch->phys); } EXPORT_SYMBOL_GPL(ltq_dma_free); diff --git a/drivers/net/ethernet/lantiq_etop.c b/drivers/net/ethernet/lantiq_etop.c index 7a637b51c7d2..e08301d833e2 100644 --- a/drivers/net/ethernet/lantiq_etop.c +++ b/drivers/net/ethernet/lantiq_etop.c @@ -274,6 +274,7 @@ ltq_etop_hw_init(struct net_device *dev) struct ltq_etop_chan *ch = &priv->ch[i]; ch->idx = ch->dma.nr = i; + ch->dma.dev = &priv->pdev->dev; if (IS_TX(i)) { ltq_dma_alloc_tx(&ch->dma); From 0297c1c2eadb5bd996a873b87597af3b91c0d4ba Mon Sep 17 00:00:00 2001 From: Willem de Bruijn Date: Sun, 9 Sep 2018 19:12:12 -0400 Subject: [PATCH 0898/1762] tcp: rate limit synflood warnings further Convert pr_info to net_info_ratelimited to limit the total number of synflood warnings. Commit 946cedccbd73 ("tcp: Change possible SYN flooding messages") rate limits synflood warnings to one per listener. Workloads that open many listener sockets can still see a high rate of log messages. Syzkaller is one frequent example. Signed-off-by: Willem de Bruijn Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/tcp_input.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 4c2dd9f863f7..4cf2f7bb2802 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -6367,8 +6367,8 @@ static bool tcp_syn_flood_action(const struct sock *sk, if (!queue->synflood_warned && net->ipv4.sysctl_tcp_syncookies != 2 && xchg(&queue->synflood_warned, 1) == 0) - pr_info("%s: Possible SYN flooding on port %d. %s. Check SNMP counters.\n", - proto, ntohs(tcp_hdr(skb)->dest), msg); + net_info_ratelimited("%s: Possible SYN flooding on port %d. %s. Check SNMP counters.\n", + proto, ntohs(tcp_hdr(skb)->dest), msg); return want_cookie; } From eea96566c189c77e5272585984eb2729881a2f1d Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 12 Sep 2018 08:23:01 +0200 Subject: [PATCH 0899/1762] ARM: dts: imx53-qsb: disable 1.2GHz OPP The maximum CPU frequency for the i.MX53 QSB is 1GHz, so disable the 1.2GHz OPP. This makes the board work again with configs that have cpufreq enabled like imx_v6_v7_defconfig on which the board stopped working with the addition of cpufreq-dt support. Fixes: 791f416608 ("ARM: dts: imx53: add cpufreq-dt support") Signed-off-by: Sascha Hauer Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx53-qsb-common.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/boot/dts/imx53-qsb-common.dtsi b/arch/arm/boot/dts/imx53-qsb-common.dtsi index 7423d462d1e4..50dde84b72ed 100644 --- a/arch/arm/boot/dts/imx53-qsb-common.dtsi +++ b/arch/arm/boot/dts/imx53-qsb-common.dtsi @@ -123,6 +123,17 @@ }; }; +&cpu0 { + /* CPU rated to 1GHz, not 1.2GHz as per the default settings */ + operating-points = < + /* kHz uV */ + 166666 850000 + 400000 900000 + 800000 1050000 + 1000000 1200000 + >; +}; + &esdhc1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_esdhc1>; From 5a64506b5c2c3cdb29d817723205330378075448 Mon Sep 17 00:00:00 2001 From: Haishuang Yan Date: Mon, 10 Sep 2018 22:19:47 +0800 Subject: [PATCH 0900/1762] erspan: return PACKET_REJECT when the appropriate tunnel is not found If erspan tunnel hasn't been established, we'd better send icmp port unreachable message after receive erspan packets. Fixes: 84e54fe0a5ea ("gre: introduce native tunnel support for ERSPAN") Cc: William Tu Signed-off-by: Haishuang Yan Acked-by: William Tu Signed-off-by: David S. Miller --- net/ipv4/ip_gre.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index ae714aecc31c..85a714d36b66 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -328,6 +328,8 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi, ip_tunnel_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error); return PACKET_RCVD; } + return PACKET_REJECT; + drop: kfree_skb(skb); return PACKET_RCVD; From 51dc63e3911fbb1f0a7a32da2fe56253e2040ea4 Mon Sep 17 00:00:00 2001 From: Haishuang Yan Date: Mon, 10 Sep 2018 22:19:48 +0800 Subject: [PATCH 0901/1762] erspan: fix error handling for erspan tunnel When processing icmp unreachable message for erspan tunnel, tunnel id should be erspan_net_id instead of ipgre_net_id. Fixes: 84e54fe0a5ea ("gre: introduce native tunnel support for ERSPAN") Cc: William Tu Signed-off-by: Haishuang Yan Acked-by: William Tu Signed-off-by: David S. Miller --- net/ipv4/ip_gre.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 85a714d36b66..8cce0e9ea08c 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -178,6 +178,9 @@ static void ipgre_err(struct sk_buff *skb, u32 info, if (tpi->proto == htons(ETH_P_TEB)) itn = net_generic(net, gre_tap_net_id); + else if (tpi->proto == htons(ETH_P_ERSPAN) || + tpi->proto == htons(ETH_P_ERSPAN2)) + itn = net_generic(net, erspan_net_id); else itn = net_generic(net, ipgre_net_id); From 6ad569019999300afd8e614d296fdc356550b77f Mon Sep 17 00:00:00 2001 From: Kai-Heng Feng Date: Tue, 11 Sep 2018 01:51:43 +0800 Subject: [PATCH 0902/1762] r8169: Clear RTL_FLAG_TASK_*_PENDING when clearing RTL_FLAG_TASK_ENABLED After system suspend, sometimes the r8169 doesn't work when ethernet cable gets pluggued. This issue happens because rtl_reset_work() doesn't get called from rtl8169_runtime_resume(), after system suspend. In rtl_task(), RTL_FLAG_TASK_* only gets cleared if this condition is met: if (!netif_running(dev) || !test_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags)) ... If RTL_FLAG_TASK_ENABLED was cleared during system suspend while RTL_FLAG_TASK_RESET_PENDING was set, the next rtl_schedule_task() won't schedule task as the flag is still there. So in addition to clearing RTL_FLAG_TASK_ENABLED, also clears other flags. Cc: Heiner Kallweit Signed-off-by: Kai-Heng Feng Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index a1f37d58e2fe..1d8631303b53 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -631,7 +631,7 @@ struct rtl8169_tc_offsets { }; enum rtl_flag { - RTL_FLAG_TASK_ENABLED, + RTL_FLAG_TASK_ENABLED = 0, RTL_FLAG_TASK_SLOW_PENDING, RTL_FLAG_TASK_RESET_PENDING, RTL_FLAG_MAX @@ -6655,7 +6655,8 @@ static int rtl8169_close(struct net_device *dev) rtl8169_update_counters(tp); rtl_lock_work(tp); - clear_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags); + /* Clear all task flags */ + bitmap_zero(tp->wk.flags, RTL_FLAG_MAX); rtl8169_down(dev); rtl_unlock_work(tp); @@ -6838,7 +6839,9 @@ static void rtl8169_net_suspend(struct net_device *dev) rtl_lock_work(tp); napi_disable(&tp->napi); - clear_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags); + /* Clear all task flags */ + bitmap_zero(tp->wk.flags, RTL_FLAG_MAX); + rtl_unlock_work(tp); rtl_pll_power_down(tp); From cc4dfb7f70a344f24c1c71e298deea0771dadcb2 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Mon, 10 Sep 2018 18:27:26 -0700 Subject: [PATCH 0903/1762] rds: fix two RCU related problems When a rds sock is bound, it is inserted into the bind_hash_table which is protected by RCU. But when releasing rds sock, after it is removed from this hash table, it is freed immediately without respecting RCU grace period. This could cause some use-after-free as reported by syzbot. Mark the rds sock with SOCK_RCU_FREE before inserting it into the bind_hash_table, so that it would be always freed after a RCU grace period. The other problem is in rds_find_bound(), the rds sock could be freed in between rhashtable_lookup_fast() and rds_sock_addref(), so we need to extend RCU read lock protection in rds_find_bound() to close this race condition. Reported-and-tested-by: syzbot+8967084bcac563795dc6@syzkaller.appspotmail.com Reported-by: syzbot+93a5839deb355537440f@syzkaller.appspotmail.com Cc: Sowmini Varadhan Cc: Santosh Shilimkar Cc: rds-devel@oss.oracle.com Signed-off-by: Cong Wang Acked-by: Santosh Shilimkar Signed-off-by: David S. Miller --- net/rds/bind.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/rds/bind.c b/net/rds/bind.c index 3ab55784b637..762d2c6788a3 100644 --- a/net/rds/bind.c +++ b/net/rds/bind.c @@ -76,11 +76,13 @@ struct rds_sock *rds_find_bound(const struct in6_addr *addr, __be16 port, struct rds_sock *rs; __rds_create_bind_key(key, addr, port, scope_id); - rs = rhashtable_lookup_fast(&bind_hash_table, key, ht_parms); + rcu_read_lock(); + rs = rhashtable_lookup(&bind_hash_table, key, ht_parms); if (rs && !sock_flag(rds_rs_to_sk(rs), SOCK_DEAD)) rds_sock_addref(rs); else rs = NULL; + rcu_read_unlock(); rdsdebug("returning rs %p for %pI6c:%u\n", rs, addr, ntohs(port)); @@ -235,6 +237,7 @@ int rds_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) goto out; } + sock_set_flag(sk, SOCK_RCU_FREE); ret = rds_add_bound(rs, binding_addr, &port, scope_id); if (ret) goto out; From 8d2d8935d30cc2acc57a3196dc10dfa8d5cbcdab Mon Sep 17 00:00:00 2001 From: Alexander Usyskin Date: Mon, 6 Aug 2018 17:47:33 +0300 Subject: [PATCH 0904/1762] mei: ignore not found client in the enumeration Some of the ME clients are available only for BIOS operation and are removed during hand off to an OS. However the removal is not instant. A client may be visible on the client list when the mei driver requests for enumeration, while the subsequent request for properties will be answered with client not found error value. The default behavior for an error is to perform client reset while this error is harmless and the link reset should be prevented. This issue started to be visible due to suspend/resume timing changes. Currently reported only on the Haswell based system. Fixes: [33.564957] mei_me 0000:00:16.0: hbm: properties response: wrong status = 1 CLIENT_NOT_FOUND [33.564978] mei_me 0000:00:16.0: mei_irq_read_handler ret = -71. [33.565270] mei_me 0000:00:16.0: unexpected reset: dev_state = INIT_CLIENTS fw status = 1E000255 60002306 00000200 00004401 00000000 00000010 Cc: Reported-by: Heiner Kallweit Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/hbm.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c index 09e233d4c0de..e56f3e72d57a 100644 --- a/drivers/misc/mei/hbm.c +++ b/drivers/misc/mei/hbm.c @@ -1161,15 +1161,18 @@ int mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr) props_res = (struct hbm_props_response *)mei_msg; - if (props_res->status) { + if (props_res->status == MEI_HBMS_CLIENT_NOT_FOUND) { + dev_dbg(dev->dev, "hbm: properties response: %d CLIENT_NOT_FOUND\n", + props_res->me_addr); + } else if (props_res->status) { dev_err(dev->dev, "hbm: properties response: wrong status = %d %s\n", props_res->status, mei_hbm_status_str(props_res->status)); return -EPROTO; + } else { + mei_hbm_me_cl_add(dev, props_res); } - mei_hbm_me_cl_add(dev, props_res); - /* request property for the next client */ if (mei_hbm_prop_req(dev, props_res->me_addr + 1)) return -EIO; From c1a214ad82d7ac6f19fe48f90b13403b40ead9dc Mon Sep 17 00:00:00 2001 From: John Hubbard Date: Thu, 23 Aug 2018 09:16:58 +0300 Subject: [PATCH 0905/1762] mei: fix use-after-free in mei_cl_write KASAN reports a use-after-free during startup, in mei_cl_write: BUG: KASAN: use-after-free in mei_cl_write+0x601/0x870 [mei] (drivers/misc/mei/client.c:1770) This is caused by commit 98e70866aacb ("mei: add support for variable length mei headers."), which changed the return value from len, to buf->size. That ends up using a stale buf pointer, because blocking call, the cb (callback) is deleted in me_cl_complete() function. However, fortunately, len remains unchanged throughout the function (and I don't see anything else that would require re-reading buf->size either), so the fix is to simply revert the change, and return len, as before. Fixes: 98e70866aacb ("mei: add support for variable length mei headers.") CC: Arnd Bergmann CC: Greg Kroah-Hartman Signed-off-by: John Hubbard Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/client.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index 4ab6251d418e..ebdcf0b450e2 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -1767,7 +1767,7 @@ out: } } - rets = buf->size; + rets = len; err: cl_dbg(dev, cl, "rpm: autosuspend\n"); pm_runtime_mark_last_busy(dev->dev); From 69bf5313035926b0b6a6578de4f3168a8f5c19b8 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Mon, 27 Aug 2018 22:40:15 +0300 Subject: [PATCH 0906/1762] mei: bus: fix hw module get/put balance MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In case the device is not connected it doesn't 'get' hw module and hence should not 'put' it on disable. Cc: 4.16+ Fixes:'commit 257355a44b99 ("mei: make module referencing local to the bus.c")' Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=200455 Tested-by: Georg Müller Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/bus.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index 7bba62a72921..13c6c9a2248a 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -616,9 +616,8 @@ int mei_cldev_disable(struct mei_cl_device *cldev) if (err < 0) dev_err(bus->dev, "Could not disconnect from the ME client\n"); -out: mei_cl_bus_module_put(cldev); - +out: /* Flush queues and remove any pending read */ mei_cl_flush_queues(cl, NULL); mei_cl_unlink(cl); From 34f1166afd67f9f48a08c52f36180048908506a4 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Mon, 27 Aug 2018 22:40:16 +0300 Subject: [PATCH 0907/1762] mei: bus: need to unlink client before freeing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In case a client fails to connect in mei_cldev_enable(), the caller won't call the mei_cldev_disable leaving the client in a linked stated. Upon driver unload the client structure will be freed in mei_cl_bus_dev_release(), leaving a stale pointer on a fail_list. This will eventually end up in crash during power down flow in mei_cl_set_disonnected(). RIP: mei_cl_set_disconnected+0x5/0x260[mei] Call trace: mei_cl_all_disconnect+0x22/0x30 mei_reset+0x194/0x250 __synchronize_hardirq+0x43/0x50 _cond_resched+0x15/0x30 mei_me_intr_clear+0x20/0x100 mei_stop+0x76/0xb0 mei_me_shutdown+0x3f/0x80 pci_device_shutdown+0x34/0x60 kernel_restart+0x0e/0x30 Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=200455 Fixes: 'c110cdb17148 ("mei: bus: make a client pointer always available")' Cc: 4.10+ Tested-by: Georg Müller Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/bus.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index 13c6c9a2248a..fc3872fe7b25 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -521,17 +521,15 @@ int mei_cldev_enable(struct mei_cl_device *cldev) cl = cldev->cl; + mutex_lock(&bus->device_lock); if (cl->state == MEI_FILE_UNINITIALIZED) { - mutex_lock(&bus->device_lock); ret = mei_cl_link(cl); - mutex_unlock(&bus->device_lock); if (ret) - return ret; + goto out; /* update pointers */ cl->cldev = cldev; } - mutex_lock(&bus->device_lock); if (mei_cl_is_connected(cl)) { ret = 0; goto out; @@ -875,12 +873,13 @@ static void mei_cl_bus_dev_release(struct device *dev) mei_me_cl_put(cldev->me_cl); mei_dev_bus_put(cldev->bus); + mei_cl_unlink(cldev->cl); kfree(cldev->cl); kfree(cldev); } static const struct device_type mei_cl_device_type = { - .release = mei_cl_bus_dev_release, + .release = mei_cl_bus_dev_release, }; /** From da1b9564e85b1d7baf66cbfabcab27e183a1db63 Mon Sep 17 00:00:00 2001 From: Minchan Kim Date: Thu, 23 Aug 2018 14:29:56 +0900 Subject: [PATCH 0908/1762] android: binder: fix the race mmap and alloc_new_buf_locked There is RaceFuzzer report like below because we have no lock to close below the race between binder_mmap and binder_alloc_new_buf_locked. To close the race, let's use memory barrier so that if someone see alloc->vma is not NULL, alloc->vma_vm_mm should be never NULL. (I didn't add stable mark intentionallybecause standard android userspace libraries that interact with binder (libbinder & libhwbinder) prevent the mmap/ioctl race. - from Todd) " Thread interleaving: CPU0 (binder_alloc_mmap_handler) CPU1 (binder_alloc_new_buf_locked) ===== ===== // drivers/android/binder_alloc.c // #L718 (v4.18-rc3) alloc->vma = vma; // drivers/android/binder_alloc.c // #L346 (v4.18-rc3) if (alloc->vma == NULL) { ... // alloc->vma is not NULL at this point return ERR_PTR(-ESRCH); } ... // #L438 binder_update_page_range(alloc, 0, (void *)PAGE_ALIGN((uintptr_t)buffer->data), end_page_addr); // In binder_update_page_range() #L218 // But still alloc->vma_vm_mm is NULL here if (need_mm && mmget_not_zero(alloc->vma_vm_mm)) alloc->vma_vm_mm = vma->vm_mm; Crash Log: ================================================================== BUG: KASAN: null-ptr-deref in __atomic_add_unless include/asm-generic/atomic-instrumented.h:89 [inline] BUG: KASAN: null-ptr-deref in atomic_add_unless include/linux/atomic.h:533 [inline] BUG: KASAN: null-ptr-deref in mmget_not_zero include/linux/sched/mm.h:75 [inline] BUG: KASAN: null-ptr-deref in binder_update_page_range+0xece/0x18e0 drivers/android/binder_alloc.c:218 Write of size 4 at addr 0000000000000058 by task syz-executor0/11184 CPU: 1 PID: 11184 Comm: syz-executor0 Not tainted 4.18.0-rc3 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.8.2-0-g33fbe13 by qemu-project.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x16e/0x22c lib/dump_stack.c:113 kasan_report_error mm/kasan/report.c:352 [inline] kasan_report+0x163/0x380 mm/kasan/report.c:412 check_memory_region_inline mm/kasan/kasan.c:260 [inline] check_memory_region+0x140/0x1a0 mm/kasan/kasan.c:267 kasan_check_write+0x14/0x20 mm/kasan/kasan.c:278 __atomic_add_unless include/asm-generic/atomic-instrumented.h:89 [inline] atomic_add_unless include/linux/atomic.h:533 [inline] mmget_not_zero include/linux/sched/mm.h:75 [inline] binder_update_page_range+0xece/0x18e0 drivers/android/binder_alloc.c:218 binder_alloc_new_buf_locked drivers/android/binder_alloc.c:443 [inline] binder_alloc_new_buf+0x467/0xc30 drivers/android/binder_alloc.c:513 binder_transaction+0x125b/0x4fb0 drivers/android/binder.c:2957 binder_thread_write+0xc08/0x2770 drivers/android/binder.c:3528 binder_ioctl_write_read.isra.39+0x24f/0x8e0 drivers/android/binder.c:4456 binder_ioctl+0xa86/0xf34 drivers/android/binder.c:4596 vfs_ioctl fs/ioctl.c:46 [inline] do_vfs_ioctl+0x154/0xd40 fs/ioctl.c:686 ksys_ioctl+0x94/0xb0 fs/ioctl.c:701 __do_sys_ioctl fs/ioctl.c:708 [inline] __se_sys_ioctl fs/ioctl.c:706 [inline] __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:706 do_syscall_64+0x167/0x4b0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe " Signed-off-by: Todd Kjos Signed-off-by: Minchan Kim Reviewed-by: Martijn Coenen Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/android/binder_alloc.c | 43 +++++++++++++++++++++++++++------- 1 file changed, 35 insertions(+), 8 deletions(-) diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c index 3f3b7b253445..64fd96eada31 100644 --- a/drivers/android/binder_alloc.c +++ b/drivers/android/binder_alloc.c @@ -332,6 +332,35 @@ err_no_vma: return vma ? -ENOMEM : -ESRCH; } + +static inline void binder_alloc_set_vma(struct binder_alloc *alloc, + struct vm_area_struct *vma) +{ + if (vma) + alloc->vma_vm_mm = vma->vm_mm; + /* + * If we see alloc->vma is not NULL, buffer data structures set up + * completely. Look at smp_rmb side binder_alloc_get_vma. + * We also want to guarantee new alloc->vma_vm_mm is always visible + * if alloc->vma is set. + */ + smp_wmb(); + alloc->vma = vma; +} + +static inline struct vm_area_struct *binder_alloc_get_vma( + struct binder_alloc *alloc) +{ + struct vm_area_struct *vma = NULL; + + if (alloc->vma) { + /* Look at description in binder_alloc_set_vma */ + smp_rmb(); + vma = alloc->vma; + } + return vma; +} + static struct binder_buffer *binder_alloc_new_buf_locked( struct binder_alloc *alloc, size_t data_size, @@ -348,7 +377,7 @@ static struct binder_buffer *binder_alloc_new_buf_locked( size_t size, data_offsets_size; int ret; - if (alloc->vma == NULL) { + if (!binder_alloc_get_vma(alloc)) { binder_alloc_debug(BINDER_DEBUG_USER_ERROR, "%d: binder_alloc_buf, no vma\n", alloc->pid); @@ -723,9 +752,7 @@ int binder_alloc_mmap_handler(struct binder_alloc *alloc, buffer->free = 1; binder_insert_free_buffer(alloc, buffer); alloc->free_async_space = alloc->buffer_size / 2; - barrier(); - alloc->vma = vma; - alloc->vma_vm_mm = vma->vm_mm; + binder_alloc_set_vma(alloc, vma); mmgrab(alloc->vma_vm_mm); return 0; @@ -754,10 +781,10 @@ void binder_alloc_deferred_release(struct binder_alloc *alloc) int buffers, page_count; struct binder_buffer *buffer; - BUG_ON(alloc->vma); - buffers = 0; mutex_lock(&alloc->mutex); + BUG_ON(alloc->vma); + while ((n = rb_first(&alloc->allocated_buffers))) { buffer = rb_entry(n, struct binder_buffer, rb_node); @@ -900,7 +927,7 @@ int binder_alloc_get_allocated_count(struct binder_alloc *alloc) */ void binder_alloc_vma_close(struct binder_alloc *alloc) { - WRITE_ONCE(alloc->vma, NULL); + binder_alloc_set_vma(alloc, NULL); } /** @@ -935,7 +962,7 @@ enum lru_status binder_alloc_free_page(struct list_head *item, index = page - alloc->pages; page_addr = (uintptr_t)alloc->buffer + index * PAGE_SIZE; - vma = alloc->vma; + vma = binder_alloc_get_vma(alloc); if (vma) { if (!mmget_not_zero(alloc->vma_vm_mm)) goto err_mmget; From c55e9318871cd06e4aa10f5023cc2dcdfbb08577 Mon Sep 17 00:00:00 2001 From: "Bryant G. Ly" Date: Mon, 6 Aug 2018 08:31:00 -0500 Subject: [PATCH 0909/1762] misc: ibmvsm: Fix wrong assignment of return code Currently the assignment is flipped and rc is always 0. Signed-off-by: Bryant G. Ly Fixes: 0eca353e7ae7 ("misc: IBM Virtual Management Channel Driver (VMC)") Reviewed-by: Bradley Warrum Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/misc/ibmvmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/ibmvmc.c b/drivers/misc/ibmvmc.c index 8f82bb9d11e2..b8aaa684c397 100644 --- a/drivers/misc/ibmvmc.c +++ b/drivers/misc/ibmvmc.c @@ -2131,7 +2131,7 @@ static int ibmvmc_init_crq_queue(struct crq_server_adapter *adapter) retrc = plpar_hcall_norets(H_REG_CRQ, vdev->unit_address, queue->msg_token, PAGE_SIZE); - retrc = rc; + rc = retrc; if (rc == H_RESOURCE) rc = ibmvmc_reset_crq_queue(adapter); From 86503bd35dec0ce363e9fdbf5299927422ed3899 Mon Sep 17 00:00:00 2001 From: "K. Y. Srinivasan" Date: Fri, 10 Aug 2018 23:06:07 +0000 Subject: [PATCH 0910/1762] Tools: hv: Fix a bug in the key delete code Fix a bug in the key delete code - the num_records range from 0 to num_records-1. Signed-off-by: K. Y. Srinivasan Reported-by: David Binderman Cc: Reviewed-by: Michael Kelley Signed-off-by: Greg Kroah-Hartman --- tools/hv/hv_kvp_daemon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c index dbf6e8bd98ba..bbb2a8ef367c 100644 --- a/tools/hv/hv_kvp_daemon.c +++ b/tools/hv/hv_kvp_daemon.c @@ -286,7 +286,7 @@ static int kvp_key_delete(int pool, const __u8 *key, int key_size) * Found a match; just move the remaining * entries up. */ - if (i == num_records) { + if (i == (num_records - 1)) { kvp_file_info[pool].num_records--; kvp_update_file(pool); return 0; From de916736aaaadddbd6061472969f667b14204aa9 Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Wed, 15 Aug 2018 10:50:41 -0500 Subject: [PATCH 0911/1762] misc: hmc6352: fix potential Spectre v1 val is indirectly controlled by user-space, hence leading to a potential exploitation of the Spectre variant 1 vulnerability. This issue was detected with the help of Smatch: drivers/misc/hmc6352.c:54 compass_store() warn: potential spectre issue 'map' [r] Fix this by sanitizing val before using it to index map Notice that given that speculation windows are large, the policy is to kill the speculation on the first load and not worry if it can be completed with a dependent load/store [1]. [1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2 Cc: stable@vger.kernel.org Signed-off-by: Gustavo A. R. Silva Signed-off-by: Greg Kroah-Hartman --- drivers/misc/hmc6352.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/misc/hmc6352.c b/drivers/misc/hmc6352.c index eeb7eef62174..38f90e179927 100644 --- a/drivers/misc/hmc6352.c +++ b/drivers/misc/hmc6352.c @@ -27,6 +27,7 @@ #include #include #include +#include static DEFINE_MUTEX(compass_mutex); @@ -50,6 +51,7 @@ static int compass_store(struct device *dev, const char *buf, size_t count, return ret; if (val >= strlen(map)) return -EINVAL; + val = array_index_nospec(val, strlen(map)); mutex_lock(&compass_mutex); ret = compass_command(c, map[val]); mutex_unlock(&compass_mutex); From 029d727b4f5d7c82f78e0395a0d220271c2f92b8 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Thu, 16 Aug 2018 14:42:13 -0500 Subject: [PATCH 0912/1762] fpga: dfl: fme: fix return value check in in pr_mgmt_init() In case of error, the function dfl_fme_create_region() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: 29de76240e86 ("fpga: dfl: fme: add partial reconfiguration sub feature support") Signed-off-by: Wei Yongjun Acked-by: Moritz Fischer Acked-by: Alan Tull Signed-off-by: Greg Kroah-Hartman --- drivers/fpga/dfl-fme-pr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/fpga/dfl-fme-pr.c b/drivers/fpga/dfl-fme-pr.c index fc9fd2d0482f..0b840531ef33 100644 --- a/drivers/fpga/dfl-fme-pr.c +++ b/drivers/fpga/dfl-fme-pr.c @@ -420,7 +420,7 @@ static int pr_mgmt_init(struct platform_device *pdev, /* Create region for each port */ fme_region = dfl_fme_create_region(pdata, mgr, fme_br->br, i); - if (!fme_region) { + if (IS_ERR(fme_region)) { ret = PTR_ERR(fme_region); goto destroy_region; } From 6712cc9c22117a8af9f3df272b4a44fd2e4201cd Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 20 Aug 2018 21:16:40 +0000 Subject: [PATCH 0913/1762] vmbus: don't return values for uninitalized channels For unsupported device types, the vmbus channel ringbuffer is never initialized, and therefore reading the sysfs files will return garbage or cause a kernel OOPS. Fixes: c2e5df616e1a ("vmbus: add per-channel sysfs info") Signed-off-by: Stephen Hemminger Signed-off-by: K. Y. Srinivasan Cc: # 4.15 Signed-off-by: Greg Kroah-Hartman --- drivers/hv/vmbus_drv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index b1b548a21f91..c71cc857b649 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -1291,6 +1291,9 @@ static ssize_t vmbus_chan_attr_show(struct kobject *kobj, if (!attribute->show) return -EIO; + if (chan->state != CHANNEL_OPENED_STATE) + return -EINVAL; + return attribute->show(chan, buf); } From 422b3db2a5036add39a82425b1dd9fb6c96481e8 Mon Sep 17 00:00:00 2001 From: Rishabh Bhatnagar Date: Fri, 31 Aug 2018 08:43:31 -0700 Subject: [PATCH 0914/1762] firmware: Fix security issue with request_firmware_into_buf() When calling request_firmware_into_buf() with the FW_OPT_NOCACHE flag it is expected that firmware is loaded into buffer from memory. But inside alloc_lookup_fw_priv every new firmware that is loaded is added to the firmware cache (fwc) list head. So if any driver requests a firmware that is already loaded the code iterates over the above mentioned list and it can end up giving a pointer to other device driver's firmware buffer. Also the existing copy may either be modified by drivers, remote processors or even freed. This causes a potential security issue with batched requests when using request_firmware_into_buf. Fix alloc_lookup_fw_priv to not add to the fwc head list if FW_OPT_NOCACHE is set, and also don't do the lookup in the list. Fixes: 0e742e9275 ("firmware: provide infrastructure to make fw caching optional") [mcgrof: broken since feature introduction on v4.8] Cc: stable@vger.kernel.org # v4.8+ Signed-off-by: Vikram Mulukutla Signed-off-by: Rishabh Bhatnagar Signed-off-by: Luis Chamberlain Signed-off-by: Greg Kroah-Hartman --- drivers/base/firmware_loader/main.c | 30 +++++++++++++++++------------ 1 file changed, 18 insertions(+), 12 deletions(-) diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c index 0943e7065e0e..b3c0498ee433 100644 --- a/drivers/base/firmware_loader/main.c +++ b/drivers/base/firmware_loader/main.c @@ -209,21 +209,24 @@ static struct fw_priv *__lookup_fw_priv(const char *fw_name) static int alloc_lookup_fw_priv(const char *fw_name, struct firmware_cache *fwc, struct fw_priv **fw_priv, void *dbuf, - size_t size) + size_t size, enum fw_opt opt_flags) { struct fw_priv *tmp; spin_lock(&fwc->lock); - tmp = __lookup_fw_priv(fw_name); - if (tmp) { - kref_get(&tmp->ref); - spin_unlock(&fwc->lock); - *fw_priv = tmp; - pr_debug("batched request - sharing the same struct fw_priv and lookup for multiple requests\n"); - return 1; + if (!(opt_flags & FW_OPT_NOCACHE)) { + tmp = __lookup_fw_priv(fw_name); + if (tmp) { + kref_get(&tmp->ref); + spin_unlock(&fwc->lock); + *fw_priv = tmp; + pr_debug("batched request - sharing the same struct fw_priv and lookup for multiple requests\n"); + return 1; + } } + tmp = __allocate_fw_priv(fw_name, fwc, dbuf, size); - if (tmp) + if (tmp && !(opt_flags & FW_OPT_NOCACHE)) list_add(&tmp->list, &fwc->head); spin_unlock(&fwc->lock); @@ -493,7 +496,8 @@ int assign_fw(struct firmware *fw, struct device *device, */ static int _request_firmware_prepare(struct firmware **firmware_p, const char *name, - struct device *device, void *dbuf, size_t size) + struct device *device, void *dbuf, size_t size, + enum fw_opt opt_flags) { struct firmware *firmware; struct fw_priv *fw_priv; @@ -511,7 +515,8 @@ _request_firmware_prepare(struct firmware **firmware_p, const char *name, return 0; /* assigned */ } - ret = alloc_lookup_fw_priv(name, &fw_cache, &fw_priv, dbuf, size); + ret = alloc_lookup_fw_priv(name, &fw_cache, &fw_priv, dbuf, size, + opt_flags); /* * bind with 'priv' now to avoid warning in failure path @@ -571,7 +576,8 @@ _request_firmware(const struct firmware **firmware_p, const char *name, goto out; } - ret = _request_firmware_prepare(&fw, name, device, buf, size); + ret = _request_firmware_prepare(&fw, name, device, buf, size, + opt_flags); if (ret <= 0) /* error or already assigned */ goto out; From fa108f95c6769ec15ea59b7db00454b82afc6121 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 5 Sep 2018 07:45:11 +0200 Subject: [PATCH 0915/1762] s390/zcrypt: remove VLA usage from the AP bus The use of variable length arrays on the stack is deprecated. git commit 3d8f60d38e249f989a7fca9c2370c31c3d5487e1 "s390/zcrypt: hex string mask improvements for apmask and aqmask." added three new VLA arrays. Remove them again. Reviewed-by: Harald Freudenberger Signed-off-by: Martin Schwidefsky --- drivers/s390/crypto/ap_bus.c | 90 ++++++++++++++---------------------- 1 file changed, 35 insertions(+), 55 deletions(-) diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index ec891bc7d10a..f039266b275d 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -872,8 +872,6 @@ static int hex2bitmap(const char *str, unsigned long *bitmap, int bits) if (bits & 0x07) return -EINVAL; - memset(bitmap, 0, bits / 8); - if (str[0] == '0' && str[1] == 'x') str++; if (*str == 'x') @@ -895,25 +893,23 @@ static int hex2bitmap(const char *str, unsigned long *bitmap, int bits) } /* - * str2clrsetmasks() - parse bitmask argument and set the clear and - * the set bitmap mask. A concatenation (done with ',') of these terms - * is recognized: + * modify_bitmap() - parse bitmask argument and modify an existing + * bit mask accordingly. A concatenation (done with ',') of these + * terms is recognized: * +[-] or -[-] * may be any valid number (hex, decimal or octal) in the range * 0...bits-1; the leading + or - is required. Here are some examples: * +0-15,+32,-128,-0xFF * -0-255,+1-16,+0x128 * +1,+2,+3,+4,-5,-7-10 - * Returns a clear and a set bitmask. Every positive value in the string - * results in a bit set in the set mask and every negative value in the - * string results in a bit SET in the clear mask. As a bit may be touched - * more than once, the last 'operation' wins: +0-255,-128 = all but bit - * 128 set in the set mask, only bit 128 set in the clear mask. + * Returns the new bitmap after all changes have been applied. Every + * positive value in the string will set a bit and every negative value + * in the string will clear a bit. As a bit may be touched more than once, + * the last 'operation' wins: + * +0-255,-128 = first bits 0-255 will be set, then bit 128 will be + * cleared again. All other bits are unmodified. */ -static int str2clrsetmasks(const char *str, - unsigned long *clrmap, - unsigned long *setmap, - int bits) +static int modify_bitmap(const char *str, unsigned long *bitmap, int bits) { int a, i, z; char *np, sign; @@ -922,9 +918,6 @@ static int str2clrsetmasks(const char *str, if (bits & 0x07) return -EINVAL; - memset(clrmap, 0, bits / 8); - memset(setmap, 0, bits / 8); - while (*str) { sign = *str++; if (sign != '+' && sign != '-') @@ -940,13 +933,10 @@ static int str2clrsetmasks(const char *str, str = np; } for (i = a; i <= z; i++) - if (sign == '+') { - set_bit_inv(i, setmap); - clear_bit_inv(i, clrmap); - } else { - clear_bit_inv(i, setmap); - set_bit_inv(i, clrmap); - } + if (sign == '+') + set_bit_inv(i, bitmap); + else + clear_bit_inv(i, bitmap); while (*str == ',' || *str == '\n') str++; } @@ -970,44 +960,34 @@ static int process_mask_arg(const char *str, unsigned long *bitmap, int bits, struct mutex *lock) { - int i; + unsigned long *newmap, size; + int rc; /* bits needs to be a multiple of 8 */ if (bits & 0x07) return -EINVAL; - if (*str == '+' || *str == '-') { - DECLARE_BITMAP(clrm, bits); - DECLARE_BITMAP(setm, bits); - - i = str2clrsetmasks(str, clrm, setm, bits); - if (i) - return i; - if (mutex_lock_interruptible(lock)) - return -ERESTARTSYS; - for (i = 0; i < bits; i++) { - if (test_bit_inv(i, clrm)) - clear_bit_inv(i, bitmap); - if (test_bit_inv(i, setm)) - set_bit_inv(i, bitmap); - } - } else { - DECLARE_BITMAP(setm, bits); - - i = hex2bitmap(str, setm, bits); - if (i) - return i; - if (mutex_lock_interruptible(lock)) - return -ERESTARTSYS; - for (i = 0; i < bits; i++) - if (test_bit_inv(i, setm)) - set_bit_inv(i, bitmap); - else - clear_bit_inv(i, bitmap); + size = BITS_TO_LONGS(bits)*sizeof(unsigned long); + newmap = kmalloc(size, GFP_KERNEL); + if (!newmap) + return -ENOMEM; + if (mutex_lock_interruptible(lock)) { + kfree(newmap); + return -ERESTARTSYS; } - mutex_unlock(lock); - return 0; + if (*str == '+' || *str == '-') { + memcpy(newmap, bitmap, size); + rc = modify_bitmap(str, newmap, bits); + } else { + memset(newmap, 0, size); + rc = hex2bitmap(str, newmap, bits); + } + if (rc == 0) + memcpy(bitmap, newmap, size); + mutex_unlock(lock); + kfree(newmap); + return rc; } /* From e1e38ea14ea3294546e6350d05a1376197a73589 Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Wed, 12 Sep 2018 11:41:49 +0800 Subject: [PATCH 0916/1762] ASoC: remove unneeded static set .owner field in platform_driver platform_driver_register will set the .owner field. So it is safe to remove the redundant assignment. The issue is detected with the help of Coccinelle. Signed-off-by: zhong jiang Signed-off-by: Mark Brown --- sound/soc/mediatek/mt2701/mt2701-wm8960.c | 1 - sound/soc/mediatek/mt6797/mt6797-mt6351.c | 1 - sound/soc/rockchip/rk3288_hdmi_analog.c | 1 - 3 files changed, 3 deletions(-) diff --git a/sound/soc/mediatek/mt2701/mt2701-wm8960.c b/sound/soc/mediatek/mt2701/mt2701-wm8960.c index 89f34efd9747..e5d49e6e2f99 100644 --- a/sound/soc/mediatek/mt2701/mt2701-wm8960.c +++ b/sound/soc/mediatek/mt2701/mt2701-wm8960.c @@ -150,7 +150,6 @@ static const struct of_device_id mt2701_wm8960_machine_dt_match[] = { static struct platform_driver mt2701_wm8960_machine = { .driver = { .name = "mt2701-wm8960", - .owner = THIS_MODULE, #ifdef CONFIG_OF .of_match_table = mt2701_wm8960_machine_dt_match, #endif diff --git a/sound/soc/mediatek/mt6797/mt6797-mt6351.c b/sound/soc/mediatek/mt6797/mt6797-mt6351.c index b1558c57b9ca..6e578e830e42 100644 --- a/sound/soc/mediatek/mt6797/mt6797-mt6351.c +++ b/sound/soc/mediatek/mt6797/mt6797-mt6351.c @@ -205,7 +205,6 @@ static const struct of_device_id mt6797_mt6351_dt_match[] = { static struct platform_driver mt6797_mt6351_driver = { .driver = { .name = "mt6797-mt6351", - .owner = THIS_MODULE, #ifdef CONFIG_OF .of_match_table = mt6797_mt6351_dt_match, #endif diff --git a/sound/soc/rockchip/rk3288_hdmi_analog.c b/sound/soc/rockchip/rk3288_hdmi_analog.c index 929b3fe289b0..a472d5eb2950 100644 --- a/sound/soc/rockchip/rk3288_hdmi_analog.c +++ b/sound/soc/rockchip/rk3288_hdmi_analog.c @@ -286,7 +286,6 @@ static struct platform_driver rockchip_sound_driver = { .probe = snd_rk_mc_probe, .driver = { .name = DRV_NAME, - .owner = THIS_MODULE, .pm = &snd_soc_pm_ops, .of_match_table = rockchip_sound_of_match, }, From e894efef9ac7c10b7727798dcc711cccf07569f9 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Wed, 12 Sep 2018 10:15:00 +0100 Subject: [PATCH 0917/1762] ASoC: core: add support to card rebind Current behaviour of ASoC core w.r.t to component removal is that it unregisters dependent sound card totally. There is no support to rebind the card if the component comes back. Typical use case is DSP restart or kernel modules itself. With this patch, core now maintains list of cards that are unbind due to any of its depended components are removed and card not unregistered yet. This list is cleared when the card is rebind successfully or when the card is unregistered from machine driver. This list of unbind cards are tried to bind once again after every new component is successfully added, giving a fair chance for card bind to be successful. Signed-off-by: Srinivas Kandagatla Signed-off-by: Mark Brown --- include/sound/soc.h | 2 + sound/soc/soc-core.c | 87 ++++++++++++++++++++++++++++++-------------- 2 files changed, 61 insertions(+), 28 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index e17a7ae9a155..1e093b399bc0 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1097,6 +1097,7 @@ struct snd_soc_card { /* lists of probed devices belonging to this card */ struct list_head component_dev_list; + struct list_head list; struct list_head widgets; struct list_head paths; @@ -1373,6 +1374,7 @@ static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card) INIT_LIST_HEAD(&card->dapm_list); INIT_LIST_HEAD(&card->aux_comp_list); INIT_LIST_HEAD(&card->component_dev_list); + INIT_LIST_HEAD(&card->list); } static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 7e18937c2214..807f112fad80 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -52,6 +52,7 @@ EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); static DEFINE_MUTEX(client_mutex); static LIST_HEAD(component_list); +static LIST_HEAD(unbind_card_list); /* * This is a timeout to do a DAPM powerdown after a stream is closed(). @@ -2679,6 +2680,33 @@ int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, } EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); +static int snd_soc_bind_card(struct snd_soc_card *card) +{ + struct snd_soc_pcm_runtime *rtd; + int ret; + + ret = snd_soc_instantiate_card(card); + if (ret != 0) + return ret; + + /* deactivate pins to sleep state */ + list_for_each_entry(rtd, &card->rtd_list, list) { + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai; + int j; + + for_each_rtd_codec_dai(rtd, j, codec_dai) { + if (!codec_dai->active) + pinctrl_pm_select_sleep_state(codec_dai->dev); + } + + if (!cpu_dai->active) + pinctrl_pm_select_sleep_state(cpu_dai->dev); + } + + return ret; +} + /** * snd_soc_register_card - Register a card with the ASoC core * @@ -2688,7 +2716,6 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); int snd_soc_register_card(struct snd_soc_card *card) { int i, ret; - struct snd_soc_pcm_runtime *rtd; if (!card->name || !card->dev) return -EINVAL; @@ -2719,29 +2746,24 @@ int snd_soc_register_card(struct snd_soc_card *card) mutex_init(&card->mutex); mutex_init(&card->dapm_mutex); - ret = snd_soc_instantiate_card(card); - if (ret != 0) - return ret; - - /* deactivate pins to sleep state */ - list_for_each_entry(rtd, &card->rtd_list, list) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_dai *codec_dai; - int j; - - for_each_rtd_codec_dai(rtd, j, codec_dai) { - if (!codec_dai->active) - pinctrl_pm_select_sleep_state(codec_dai->dev); - } - - if (!cpu_dai->active) - pinctrl_pm_select_sleep_state(cpu_dai->dev); - } - - return ret; + return snd_soc_bind_card(card); } EXPORT_SYMBOL_GPL(snd_soc_register_card); +static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister) +{ + if (card->instantiated) { + card->instantiated = false; + snd_soc_dapm_shutdown(card); + soc_cleanup_card_resources(card); + if (!unregister) + list_add(&card->list, &unbind_card_list); + } else { + if (unregister) + list_del(&card->list); + } +} + /** * snd_soc_unregister_card - Unregister a card with the ASoC core * @@ -2750,12 +2772,8 @@ EXPORT_SYMBOL_GPL(snd_soc_register_card); */ int snd_soc_unregister_card(struct snd_soc_card *card) { - if (card->instantiated) { - card->instantiated = false; - snd_soc_dapm_shutdown(card); - soc_cleanup_card_resources(card); - dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); - } + snd_soc_unbind_card(card, true); + dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); return 0; } @@ -3099,7 +3117,7 @@ static void snd_soc_component_del_unlocked(struct snd_soc_component *component) struct snd_soc_card *card = component->card; if (card) - snd_soc_unregister_card(card); + snd_soc_unbind_card(card, false); list_del(&component->list); } @@ -3139,6 +3157,18 @@ static void convert_endianness_formats(struct snd_soc_pcm_stream *stream) stream->formats |= endianness_format_map[i]; } +static void snd_soc_try_rebind_card(void) +{ + struct snd_soc_card *card, *c; + + if (!list_empty(&unbind_card_list)) { + list_for_each_entry_safe(card, c, &unbind_card_list, list) { + if (!snd_soc_bind_card(card)) + list_del(&card->list); + } + } +} + int snd_soc_add_component(struct device *dev, struct snd_soc_component *component, const struct snd_soc_component_driver *component_driver, @@ -3166,6 +3196,7 @@ int snd_soc_add_component(struct device *dev, } snd_soc_component_add(component); + snd_soc_try_rebind_card(); return 0; From a7c439d6128de2cbc087ae7524b47f613ff8bc6c Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 11 Sep 2018 15:50:27 +0900 Subject: [PATCH 0918/1762] ASoC: soc-core: remove dai->driver NULL check It is strange if it has "dai" but doesn't have "dai->driver". And more over "dai->driver->xxx" is used everywhere without "dai->driver" pointer NULL checking. It got Oops already if "dai->driver" was NULL. Let's remove un-needed "dai->driver" NULL check. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 807f112fad80..325dc1964850 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -2519,8 +2519,6 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio); */ int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { - if (dai->driver == NULL) - return -EINVAL; if (dai->driver->ops->set_fmt == NULL) return -ENOTSUPP; return dai->driver->ops->set_fmt(dai, fmt); @@ -2667,9 +2665,6 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, int direction) { - if (!dai->driver) - return -ENOTSUPP; - if (dai->driver->ops->mute_stream) return dai->driver->ops->mute_stream(dai, mute, direction); else if (direction == SNDRV_PCM_STREAM_PLAYBACK && From 379e36d3f591cb62e781907edafea17d75e8c1fa Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Fri, 7 Sep 2018 10:18:51 +0200 Subject: [PATCH 0919/1762] ARM: dts: at91: sama5d2_ptc_ek: fix nand pinctrl The drive strength has to be set to medium otherwise some data corruption may happen. Signed-off-by: Ludovic Desroches Acked-by: Nicolas Ferre Signed-off-by: Alexandre Belloni --- arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts b/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts index b10dccd0958f..3b1baa8605a7 100644 --- a/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts +++ b/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts @@ -11,6 +11,7 @@ #include "sama5d2-pinfunc.h" #include #include +#include / { model = "Atmel SAMA5D2 PTC EK"; @@ -299,6 +300,7 @@ , ; bias-pull-up; + atmel,drive-strength = ; }; ale_cle_rdy_cs { From 9d2ac5f4bec00a0697ab77c999ef38753b3cb900 Mon Sep 17 00:00:00 2001 From: Jacopo Mondi Date: Fri, 3 Aug 2018 12:40:58 +0200 Subject: [PATCH 0920/1762] media: i2c: mt9v111: Fix v4l2-ctrl error handling Fix error handling of v4l2_ctrl creation by inspecting the ctrl.error flag instead of testing for each returned value correctness. As reported by Dan Carpenter returning PTR_ERR() on the v4l2_ctrl_new_std() return value is also wrong, as that function return NULL on error. While at there re-order the cleanup path to respect the operation inverse order. Fixes: aab7ed1c "media: i2c: Add driver for Aptina MT9V111" Reported-by: Dan Carpenter Signed-off-by: Jacopo Mondi Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/mt9v111.c | 41 ++++++++++++------------------------- 1 file changed, 13 insertions(+), 28 deletions(-) diff --git a/drivers/media/i2c/mt9v111.c b/drivers/media/i2c/mt9v111.c index b5410aeb5fe2..bb41bea950ac 100644 --- a/drivers/media/i2c/mt9v111.c +++ b/drivers/media/i2c/mt9v111.c @@ -1159,41 +1159,21 @@ static int mt9v111_probe(struct i2c_client *client) V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, V4L2_WHITE_BALANCE_AUTO); - if (IS_ERR_OR_NULL(mt9v111->auto_awb)) { - ret = PTR_ERR(mt9v111->auto_awb); - goto error_free_ctrls; - } - mt9v111->auto_exp = v4l2_ctrl_new_std_menu(&mt9v111->ctrls, &mt9v111_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, V4L2_EXPOSURE_MANUAL, 0, V4L2_EXPOSURE_AUTO); - if (IS_ERR_OR_NULL(mt9v111->auto_exp)) { - ret = PTR_ERR(mt9v111->auto_exp); - goto error_free_ctrls; - } - - /* Initialize timings */ mt9v111->hblank = v4l2_ctrl_new_std(&mt9v111->ctrls, &mt9v111_ctrl_ops, V4L2_CID_HBLANK, MT9V111_CORE_R05_MIN_HBLANK, MT9V111_CORE_R05_MAX_HBLANK, 1, MT9V111_CORE_R05_DEF_HBLANK); - if (IS_ERR_OR_NULL(mt9v111->hblank)) { - ret = PTR_ERR(mt9v111->hblank); - goto error_free_ctrls; - } - mt9v111->vblank = v4l2_ctrl_new_std(&mt9v111->ctrls, &mt9v111_ctrl_ops, V4L2_CID_VBLANK, MT9V111_CORE_R06_MIN_VBLANK, MT9V111_CORE_R06_MAX_VBLANK, 1, MT9V111_CORE_R06_DEF_VBLANK); - if (IS_ERR_OR_NULL(mt9v111->vblank)) { - ret = PTR_ERR(mt9v111->vblank); - goto error_free_ctrls; - } /* PIXEL_RATE is fixed: just expose it to user space. */ v4l2_ctrl_new_std(&mt9v111->ctrls, &mt9v111_ctrl_ops, @@ -1201,6 +1181,10 @@ static int mt9v111_probe(struct i2c_client *client) DIV_ROUND_CLOSEST(mt9v111->sysclk, 2), 1, DIV_ROUND_CLOSEST(mt9v111->sysclk, 2)); + if (mt9v111->ctrls.error) { + ret = mt9v111->ctrls.error; + goto error_free_ctrls; + } mt9v111->sd.ctrl_handler = &mt9v111->ctrls; /* Start with default configuration: 640x480 UYVY. */ @@ -1226,26 +1210,27 @@ static int mt9v111_probe(struct i2c_client *client) mt9v111->pad.flags = MEDIA_PAD_FL_SOURCE; ret = media_entity_pads_init(&mt9v111->sd.entity, 1, &mt9v111->pad); if (ret) - goto error_free_ctrls; + goto error_free_entity; #endif ret = mt9v111_chip_probe(mt9v111); if (ret) - goto error_free_ctrls; + goto error_free_entity; ret = v4l2_async_register_subdev(&mt9v111->sd); if (ret) - goto error_free_ctrls; + goto error_free_entity; return 0; -error_free_ctrls: - v4l2_ctrl_handler_free(&mt9v111->ctrls); - +error_free_entity: #if IS_ENABLED(CONFIG_MEDIA_CONTROLLER) media_entity_cleanup(&mt9v111->sd.entity); #endif +error_free_ctrls: + v4l2_ctrl_handler_free(&mt9v111->ctrls); + mutex_destroy(&mt9v111->pwr_mutex); mutex_destroy(&mt9v111->stream_mutex); @@ -1259,12 +1244,12 @@ static int mt9v111_remove(struct i2c_client *client) v4l2_async_unregister_subdev(sd); - v4l2_ctrl_handler_free(&mt9v111->ctrls); - #if IS_ENABLED(CONFIG_MEDIA_CONTROLLER) media_entity_cleanup(&sd->entity); #endif + v4l2_ctrl_handler_free(&mt9v111->ctrls); + mutex_destroy(&mt9v111->pwr_mutex); mutex_destroy(&mt9v111->stream_mutex); From dab99a0f77e9764a00b0203d0155ca134247f461 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Thu, 30 Aug 2018 06:18:22 -0400 Subject: [PATCH 0921/1762] media: staging/media/mt9t031/Kconfig: remove bogus entry The 'config SOC_CAMERA_IMX074' is a copy-and-paste error and should be removed. This Kconfig is for mt9t031 only. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/mt9t031/Kconfig | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/staging/media/mt9t031/Kconfig b/drivers/staging/media/mt9t031/Kconfig index f48e06a03cdb..9a58aaf72edd 100644 --- a/drivers/staging/media/mt9t031/Kconfig +++ b/drivers/staging/media/mt9t031/Kconfig @@ -1,9 +1,3 @@ -config SOC_CAMERA_IMX074 - tristate "imx074 support (DEPRECATED)" - depends on SOC_CAMERA && I2C - help - This driver supports IMX074 cameras from Sony - config SOC_CAMERA_MT9T031 tristate "mt9t031 support (DEPRECATED)" depends on SOC_CAMERA && I2C From d9b84a15892c02334ac8a5c28865ae54168d9b22 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 12 Sep 2018 12:31:32 +0100 Subject: [PATCH 0922/1762] ALSA: hda: Fix implicit definition of pci_iomap() on SH Include asm/io.h directly so we've got a definition of pci_iomap(), the current set of includes do this implicitly on most architectures but not on SH. Reported-by: kbuild test robot Signed-off-by: Mark Brown --- sound/pci/hda/patch_ca0132.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c index a585d0ec6d77..6ea04f889809 100644 --- a/sound/pci/hda/patch_ca0132.c +++ b/sound/pci/hda/patch_ca0132.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include #include "hda_local.h" From 1843abd03250115af6cec0892683e70cf2297c25 Mon Sep 17 00:00:00 2001 From: Janosch Frank Date: Thu, 16 Aug 2018 09:02:31 +0100 Subject: [PATCH 0923/1762] s390/mm: Check for valid vma before zapping in gmap_discard Userspace could have munmapped the area before doing unmapping from the gmap. This would leave us with a valid vmaddr, but an invalid vma from which we would try to zap memory. Let's check before using the vma. Fixes: 1e133ab296f3 ("s390/mm: split arch/s390/mm/pgtable.c") Signed-off-by: Janosch Frank Reviewed-by: David Hildenbrand Reported-by: Dan Carpenter Message-Id: <20180816082432.78828-1-frankja@linux.ibm.com> Signed-off-by: Janosch Frank --- arch/s390/mm/gmap.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c index bb44990c8212..911c7ded35f1 100644 --- a/arch/s390/mm/gmap.c +++ b/arch/s390/mm/gmap.c @@ -708,11 +708,13 @@ void gmap_discard(struct gmap *gmap, unsigned long from, unsigned long to) vmaddr |= gaddr & ~PMD_MASK; /* Find vma in the parent mm */ vma = find_vma(gmap->mm, vmaddr); + if (!vma) + continue; /* * We do not discard pages that are backed by * hugetlbfs, so we don't have to refault them. */ - if (vma && is_vm_hugetlb_page(vma)) + if (is_vm_hugetlb_page(vma)) continue; size = min(to - gaddr, PMD_SIZE - (gaddr & ~PMD_MASK)); zap_page_range(vma, vmaddr, size); From 40ebdb8e59df36e2cc71810bd021a0808b16c956 Mon Sep 17 00:00:00 2001 From: Janosch Frank Date: Wed, 1 Aug 2018 11:48:28 +0100 Subject: [PATCH 0924/1762] KVM: s390: Make huge pages unavailable in ucontrol VMs We currently do not notify all gmaps when using gmap_pmdp_xchg(), due to locking constraints. This makes ucontrol VMs, which is the only VM type that creates multiple gmaps, incompatible with huge pages. Also we would need to hold the guest_table_lock of all gmaps that have this vmaddr maped to synchronize access to the pmd. ucontrol VMs are rather exotic and creating a new locking concept is no easy task. Hence we return EINVAL when trying to active KVM_CAP_S390_HPAGE_1M and report it as being not available when checking for it. Fixes: a4499382 ("KVM: s390: Add huge page enablement control") Signed-off-by: Janosch Frank Reviewed-by: David Hildenbrand Reviewed-by: Claudio Imbrenda Message-Id: <20180801112508.138159-1-frankja@linux.ibm.com> Signed-off-by: Janosch Frank --- Documentation/virtual/kvm/api.txt | 3 ++- arch/s390/kvm/kvm-s390.c | 4 ++-- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index c664064f76fb..8d8a372c8340 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -4510,7 +4510,8 @@ Do not enable KVM_FEATURE_PV_UNHALT if you disable HLT exits. Architectures: s390 Parameters: none Returns: 0 on success, -EINVAL if hpage module parameter was not set - or cmma is enabled + or cmma is enabled, or the VM has the KVM_VM_S390_UCONTROL + flag set With this capability the KVM support for memory backing with 1m pages through hugetlbfs can be enabled for a VM. After the capability is diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index f69333fd2fa3..ac5da6b0b862 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -481,7 +481,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) break; case KVM_CAP_S390_HPAGE_1M: r = 0; - if (hpage) + if (hpage && !kvm_is_ucontrol(kvm)) r = 1; break; case KVM_CAP_S390_MEM_OP: @@ -691,7 +691,7 @@ static int kvm_vm_ioctl_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap) mutex_lock(&kvm->lock); if (kvm->created_vcpus) r = -EBUSY; - else if (!hpage || kvm->arch.use_cmma) + else if (!hpage || kvm->arch.use_cmma || kvm_is_ucontrol(kvm)) r = -EINVAL; else { r = 0; From 6ee67e351cdae68b4c9c7df74124b9f9fb81e966 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Wed, 12 Sep 2018 03:15:30 +0000 Subject: [PATCH 0925/1762] drm/fb-helper: Remove set but not used variable 'connector_funcs' Fixes gcc '-Wunused-but-set-variable' warning: drivers/gpu/drm/drm_fb_helper.c: In function 'drm_pick_crtcs': drivers/gpu/drm/drm_fb_helper.c:2373:43: warning: variable 'connector_funcs' set but not used [-Wunused-but-set-variable] Signed-off-by: YueHaibing Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/1536722130-108819-1-git-send-email-yuehaibing@huawei.com --- drivers/gpu/drm/drm_fb_helper.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 4b0dd20bccb8..16ec93b75dbf 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -2370,7 +2370,6 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper, { int c, o; struct drm_connector *connector; - const struct drm_connector_helper_funcs *connector_funcs; int my_score, best_score, score; struct drm_fb_helper_crtc **crtcs, *crtc; struct drm_fb_helper_connector *fb_helper_conn; @@ -2399,8 +2398,6 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper, if (drm_has_preferred_mode(fb_helper_conn, width, height)) my_score++; - connector_funcs = connector->helper_private; - /* * select a crtc for this connector and then attempt to configure * remaining connectors From 8ad8aa353524d89fa2e09522f3078166ff78ec42 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 6 Sep 2018 12:47:51 +0300 Subject: [PATCH 0926/1762] cifs: prevent integer overflow in nxt_dir_entry() The "old_entry + le32_to_cpu(pDirInfo->NextEntryOffset)" can wrap around so I have added a check for integer overflow. Reported-by: Dr Silvio Cesare of InfoSect Reviewed-by: Ronnie Sahlberg Reviewed-by: Aurelien Aptel Signed-off-by: Dan Carpenter Signed-off-by: Steve French CC: Stable --- fs/cifs/readdir.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index eeab81c9452f..e169e1a5fd35 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -376,8 +376,15 @@ static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level) new_entry = old_entry + sizeof(FIND_FILE_STANDARD_INFO) + pfData->FileNameLength; - } else - new_entry = old_entry + le32_to_cpu(pDirInfo->NextEntryOffset); + } else { + u32 next_offset = le32_to_cpu(pDirInfo->NextEntryOffset); + + if (old_entry + next_offset < old_entry) { + cifs_dbg(VFS, "invalid offset %u\n", next_offset); + return NULL; + } + new_entry = old_entry + next_offset; + } cifs_dbg(FYI, "new entry %p old entry %p\n", new_entry, old_entry); /* validate that new_entry is not past end of SMB */ if (new_entry >= end_of_smb) { From 56446f218af1133c802dad8e9e116f07f381846c Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 6 Sep 2018 12:48:22 +0300 Subject: [PATCH 0927/1762] CIFS: fix wrapping bugs in num_entries() The problem is that "entryptr + next_offset" and "entryptr + len + size" can wrap. I ended up changing the type of "entryptr" because it makes the math easier when we don't have to do so much casting. Signed-off-by: Dan Carpenter Signed-off-by: Steve French Reviewed-by: Aurelien Aptel Reviewed-by: Pavel Shilovsky CC: Stable --- fs/cifs/smb2pdu.c | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index c08acfc77abc..6f0e6b42599c 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -3577,33 +3577,38 @@ num_entries(char *bufstart, char *end_of_buf, char **lastentry, size_t size) int len; unsigned int entrycount = 0; unsigned int next_offset = 0; - FILE_DIRECTORY_INFO *entryptr; + char *entryptr; + FILE_DIRECTORY_INFO *dir_info; if (bufstart == NULL) return 0; - entryptr = (FILE_DIRECTORY_INFO *)bufstart; + entryptr = bufstart; while (1) { - entryptr = (FILE_DIRECTORY_INFO *) - ((char *)entryptr + next_offset); - - if ((char *)entryptr + size > end_of_buf) { + if (entryptr + next_offset < entryptr || + entryptr + next_offset > end_of_buf || + entryptr + next_offset + size > end_of_buf) { cifs_dbg(VFS, "malformed search entry would overflow\n"); break; } - len = le32_to_cpu(entryptr->FileNameLength); - if ((char *)entryptr + len + size > end_of_buf) { + entryptr = entryptr + next_offset; + dir_info = (FILE_DIRECTORY_INFO *)entryptr; + + len = le32_to_cpu(dir_info->FileNameLength); + if (entryptr + len < entryptr || + entryptr + len > end_of_buf || + entryptr + len + size > end_of_buf) { cifs_dbg(VFS, "directory entry name would overflow frame end of buf %p\n", end_of_buf); break; } - *lastentry = (char *)entryptr; + *lastentry = entryptr; entrycount++; - next_offset = le32_to_cpu(entryptr->NextEntryOffset); + next_offset = le32_to_cpu(dir_info->NextEntryOffset); if (!next_offset) break; } From 2d204ee9d671327915260071c19350d84344e096 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 10 Sep 2018 14:12:07 +0300 Subject: [PATCH 0928/1762] cifs: integer overflow in in SMB2_ioctl() The "le32_to_cpu(rsp->OutputOffset) + *plen" addition can overflow and wrap around to a smaller value which looks like it would lead to an information leak. Fixes: 4a72dafa19ba ("SMB2 FSCTL and IOCTL worker function") Signed-off-by: Dan Carpenter Signed-off-by: Steve French Reviewed-by: Aurelien Aptel CC: Stable --- fs/cifs/smb2pdu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 6f0e6b42599c..f54d07bda067 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -2459,14 +2459,14 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid, /* We check for obvious errors in the output buffer length and offset */ if (*plen == 0) goto ioctl_exit; /* server returned no data */ - else if (*plen > 0xFF00) { + else if (*plen > rsp_iov.iov_len || *plen > 0xFF00) { cifs_dbg(VFS, "srv returned invalid ioctl length: %d\n", *plen); *plen = 0; rc = -EIO; goto ioctl_exit; } - if (rsp_iov.iov_len < le32_to_cpu(rsp->OutputOffset) + *plen) { + if (rsp_iov.iov_len - *plen < le32_to_cpu(rsp->OutputOffset)) { cifs_dbg(VFS, "Malformed ioctl resp: len %d offset %d\n", *plen, le32_to_cpu(rsp->OutputOffset)); *plen = 0; From d310959365942b100f79b56bcce859968fe7ca9c Mon Sep 17 00:00:00 2001 From: Scott Branden Date: Tue, 11 Sep 2018 13:26:38 -0700 Subject: [PATCH 0929/1762] efi/libstub/arm: default EFI_ARMSTUB_DTB_LOADER to y Default EFI_ARMSTUB_DTB_LOADER to y to allow the dtb= command line parameter to function with efi loader. Required for development purposes and to boot on existing bootloaders that do not support devicetree provided by the firmware or by the bootloader. Fixes: 3d7ee348aa41 ("efi/libstub/arm: Add opt-in Kconfig option ...") Signed-off-by: Scott Branden Signed-off-by: Ard Biesheuvel --- drivers/firmware/efi/Kconfig | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig index d8e159feb573..89110dfc7127 100644 --- a/drivers/firmware/efi/Kconfig +++ b/drivers/firmware/efi/Kconfig @@ -90,14 +90,17 @@ config EFI_ARMSTUB config EFI_ARMSTUB_DTB_LOADER bool "Enable the DTB loader" depends on EFI_ARMSTUB + default y help Select this config option to add support for the dtb= command line parameter, allowing a device tree blob to be loaded into memory from the EFI System Partition by the stub. - The device tree is typically provided by the platform or by - the bootloader, so this option is mostly for development - purposes only. + If the device tree is provided by the platform or by + the bootloader this option may not be needed. + But, for various development reasons and to maintain existing + functionality for bootloaders that do not have such support + this option is necessary. config EFI_BOOTLOADER_CONTROL tristate "EFI Bootloader Control" From b1f4ff74fcb0e82664e8633cc225c2ad4234878a Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Mon, 10 Sep 2018 10:59:56 -0700 Subject: [PATCH 0930/1762] tracing/Makefile: Fix handling redefinition of CC_FLAGS_FTRACE As a Kernel developer, I make heavy use of "make targz-pkg" in order to locally compile and remotely install my development Kernels. The nice feature I rely on is that after a normal "make", "make targz-pkg" only generates the tarball without having to recompile everything. That was true until commit f28bc3c32c05 ("tracing: Handle CC_FLAGS_FTRACE more accurately"). After it, running "make targz-pkg" after "make" will recompile the whole Kernel tree, making my development workflow much slower. The Kernel is choosing to recompile everything because it claims the command line has changed. A diff of the .cmd files show a repeated -mfentry in one of the files. That is because "make targz-pkg" calls "make modules_install" and the environment is already populated with the exported variables, CC_FLAGS_FTRACE being one of them. Then, -mfentry gets duplicated because it is not protected behind an ifndef block, like -pg. To complicate the problem a little bit more, architectures can define their own version CC_FLAGS_FTRACE, so our code not only has to consider recursive Makefiles, but also architecture overrides. So in this patch we move CC_FLAGS_FTRACE up and unconditionally define it to -pg. Then we let the architecture Makefiles possibly override it, and finally append the extra options later. This ensures the variable is always fully redefined at each invocation so recursive Makefiles don't keep appending, and hopefully it maintains the intended behavior on how architectures can override the defaults.. Thanks Steven Rostedt and Vasily Gorbik for the help on this regression. Cc: Michal Marek Cc: Ingo Molnar Cc: Tvrtko Ursulin Cc: linux-kbuild@vger.kernel.org Fixes: commit f28bc3c32c05 ("tracing: Handle CC_FLAGS_FTRACE more accurately") Acked-by: Vasily Gorbik Signed-off-by: Paulo Zanoni Signed-off-by: Steven Rostedt (VMware) --- Makefile | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index 4d5c883a98e5..a5ef6818157a 100644 --- a/Makefile +++ b/Makefile @@ -616,6 +616,11 @@ CFLAGS_GCOV := -fprofile-arcs -ftest-coverage \ $(call cc-disable-warning,maybe-uninitialized,) export CFLAGS_GCOV +# The arch Makefiles can override CC_FLAGS_FTRACE. We may also append it later. +ifdef CONFIG_FUNCTION_TRACER + CC_FLAGS_FTRACE := -pg +endif + # The arch Makefile can set ARCH_{CPP,A,C}FLAGS to override the default # values of the respective KBUILD_* variables ARCH_CPPFLAGS := @@ -755,9 +760,6 @@ KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ endif ifdef CONFIG_FUNCTION_TRACER -ifndef CC_FLAGS_FTRACE -CC_FLAGS_FTRACE := -pg -endif ifdef CONFIG_FTRACE_MCOUNT_RECORD # gcc 5 supports generating the mcount tables directly ifeq ($(call cc-option-yn,-mrecord-mcount),y) From 999696752db1099aba595aac4f8d881f8c7cf4e6 Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Wed, 12 Sep 2018 19:41:22 +0200 Subject: [PATCH 0931/1762] x86/xen: Disable CPU0 hotplug for Xen PV Xen PV guests don't allow CPU0 hotplug, so disable it. Signed-off-by: Juergen Gross Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: boris.ostrovsky@oracle.com Cc: xen-devel@lists.xenproject.org Link: http://lkml.kernel.org/r/20180912174122.24282-1-jgross@suse.com Signed-off-by: Ingo Molnar --- arch/x86/kernel/topology.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c index 12cbe2b88c0f..738bf42b0218 100644 --- a/arch/x86/kernel/topology.c +++ b/arch/x86/kernel/topology.c @@ -111,8 +111,10 @@ int arch_register_cpu(int num) /* * Currently CPU0 is only hotpluggable on Intel platforms. Other * vendors can add hotplug support later. + * Xen PV guests don't support CPU0 hotplug at all. */ - if (c->x86_vendor != X86_VENDOR_INTEL) + if (c->x86_vendor != X86_VENDOR_INTEL || + boot_cpu_has(X86_FEATURE_XENPV)) cpu0_hotpluggable = 0; /* From cf40361ede6cf9dc09349e4c049dc0d166ca2d8b Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 11 Sep 2018 11:18:12 -0700 Subject: [PATCH 0932/1762] x86/efi: Load fixmap GDT in efi_call_phys_epilog() before setting %cr3 Commit eeb89e2bb1ac ("x86/efi: Load fixmap GDT in efi_call_phys_epilog()") moved loading the fixmap in efi_call_phys_epilog() after load_cr3() since it was assumed to be more logical. Turns out this is incorrect: In efi_call_phys_prolog(), the gdt with its physical address is loaded first, and when the %cr3 is reloaded in _epilog from initial_page_table to swapper_pg_dir again the gdt is no longer mapped. This results in a triple fault if an interrupt occurs after load_cr3() and before load_fixmap_gdt(0). Calling load_fixmap_gdt(0) first restores the execution order prior to commit eeb89e2bb1ac and fixes the problem. Fixes: eeb89e2bb1ac ("x86/efi: Load fixmap GDT in efi_call_phys_epilog()") Signed-off-by: Guenter Roeck Signed-off-by: Thomas Gleixner Acked-by: Linus Torvalds Cc: Ard Biesheuvel Cc: linux-efi@vger.kernel.org Cc: Andy Lutomirski Cc: Joerg Roedel Link: https://lkml.kernel.org/r/1536689892-21538-1-git-send-email-linux@roeck-us.net --- arch/x86/platform/efi/efi_32.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c index 05ca14222463..9959657127f4 100644 --- a/arch/x86/platform/efi/efi_32.c +++ b/arch/x86/platform/efi/efi_32.c @@ -85,10 +85,9 @@ pgd_t * __init efi_call_phys_prolog(void) void __init efi_call_phys_epilog(pgd_t *save_pgd) { + load_fixmap_gdt(0); load_cr3(save_pgd); __flush_tlb_all(); - - load_fixmap_gdt(0); } void __init efi_runtime_update_mappings(void) From 4b1c5d917d34f705096bb7dd8a2bd19b0881970e Mon Sep 17 00:00:00 2001 From: Martin KaFai Lau Date: Wed, 12 Sep 2018 10:29:11 -0700 Subject: [PATCH 0933/1762] bpf: btf: Fix end boundary calculation for type section The end boundary math for type section is incorrect in btf_check_all_metas(). It just happens that hdr->type_off is always 0 for now because there are only two sections (type and string) and string section must be at the end (ensured in btf_parse_str_sec). However, type_off may not be 0 if a new section would be added later. This patch fixes it. Fixes: f80442a4cd18 ("bpf: btf: Change how section is supported in btf_header") Reported-by: Dmitry Vyukov Signed-off-by: Martin KaFai Lau Acked-by: Yonghong Song Signed-off-by: Daniel Borkmann --- kernel/bpf/btf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index 2590700237c1..138f0302692e 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -1844,7 +1844,7 @@ static int btf_check_all_metas(struct btf_verifier_env *env) hdr = &btf->hdr; cur = btf->nohdr_data + hdr->type_off; - end = btf->nohdr_data + hdr->type_len; + end = cur + hdr->type_len; env->log_type_id = 1; while (cur < end) { From 778b1ac737494cec156f17c80da44664c1f77cf6 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Wed, 12 Sep 2018 15:31:32 +0200 Subject: [PATCH 0934/1762] s390/qeth: indicate error when netdev allocation fails Bailing out on allocation error is nice, but we also need to tell the ccwgroup core that creating the qeth groupdev failed. Fixes: d3d1b205e89f ("s390/qeth: allocate netdevice early") Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller --- drivers/s390/net/qeth_core_main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 49f64eb3eab0..6b24face21d5 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -5768,8 +5768,10 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev) qeth_update_from_chp_desc(card); card->dev = qeth_alloc_netdev(card); - if (!card->dev) + if (!card->dev) { + rc = -ENOMEM; goto err_card; + } qeth_determine_capabilities(card); enforced_disc = qeth_enforce_discipline(card); From 04db741d0df02fdb9ea4ddca32615153407dcf7f Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Wed, 12 Sep 2018 15:31:33 +0200 Subject: [PATCH 0935/1762] s390/qeth: switch on SG by default for IQD devices Scatter-gather transmit brings a nice performance boost. Considering the rather large MTU sizes at play, it's also totally the Right Thing To Do. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller --- drivers/s390/net/qeth_core_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 6b24face21d5..b60055e9cb1a 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -5706,6 +5706,8 @@ static struct net_device *qeth_alloc_netdev(struct qeth_card *card) dev->priv_flags &= ~IFF_TX_SKB_SHARING; dev->hw_features |= NETIF_F_SG; dev->vlan_features |= NETIF_F_SG; + if (IS_IQD(card)) + dev->features |= NETIF_F_SG; } return dev; From aec45e857c5538664edb76a60dd452e3265f37d1 Mon Sep 17 00:00:00 2001 From: Wenjia Zhang Date: Wed, 12 Sep 2018 15:31:34 +0200 Subject: [PATCH 0936/1762] s390/qeth: use vzalloc for QUERY OAT buffer qeth_query_oat_command() currently allocates the kernel buffer for the SIOC_QETH_QUERY_OAT ioctl with kzalloc. So on systems with fragmented memory, large allocations may fail (eg. the qethqoat tool by default uses 132KB). Solve this issue by using vzalloc, backing the allocation with non-contiguous memory. Signed-off-by: Wenjia Zhang Reviewed-by: Julian Wiedmann Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller --- drivers/s390/net/qeth_core_main.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index b60055e9cb1a..de8282420f96 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include @@ -4699,7 +4700,7 @@ static int qeth_query_oat_command(struct qeth_card *card, char __user *udata) priv.buffer_len = oat_data.buffer_len; priv.response_len = 0; - priv.buffer = kzalloc(oat_data.buffer_len, GFP_KERNEL); + priv.buffer = vzalloc(oat_data.buffer_len); if (!priv.buffer) { rc = -ENOMEM; goto out; @@ -4740,7 +4741,7 @@ static int qeth_query_oat_command(struct qeth_card *card, char __user *udata) rc = -EFAULT; out_free: - kfree(priv.buffer); + vfree(priv.buffer); out: return rc; } From 0ac1487c4b2de383b91ecad1be561b8f7a2c15f4 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Wed, 12 Sep 2018 15:31:35 +0200 Subject: [PATCH 0937/1762] s390/qeth: don't dump past end of unknown HW header For inbound data with an unsupported HW header format, only dump the actual HW header. We have no idea how much payload follows it, and what it contains. Worst case, we dump past the end of the Inbound Buffer and access whatever is located next in memory. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller --- drivers/s390/net/qeth_l2_main.c | 2 +- drivers/s390/net/qeth_l3_main.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 710fa74892ae..b5e38531733f 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -423,7 +423,7 @@ static int qeth_l2_process_inbound_buffer(struct qeth_card *card, default: dev_kfree_skb_any(skb); QETH_CARD_TEXT(card, 3, "inbunkno"); - QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); + QETH_DBF_HEX(CTRL, 3, hdr, sizeof(*hdr)); continue; } work_done++; diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 7175086677fb..ada258c01a08 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1390,7 +1390,7 @@ static int qeth_l3_process_inbound_buffer(struct qeth_card *card, default: dev_kfree_skb_any(skb); QETH_CARD_TEXT(card, 3, "inbunkno"); - QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); + QETH_DBF_HEX(CTRL, 3, hdr, sizeof(*hdr)); continue; } work_done++; From 12a78b026f870c575d3a98998b25084aac5b3c61 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Tue, 11 Sep 2018 15:12:17 -0700 Subject: [PATCH 0938/1762] tipc: check return value of __tipc_dump_start() When __tipc_dump_start() fails with running out of memory, we have no reason to continue, especially we should avoid calling tipc_dump_done(). Fixes: 8f5c5fcf3533 ("tipc: call start and done ops directly in __tipc_nl_compat_dumpit()") Reported-and-tested-by: syzbot+3f8324abccfbf8c74a9f@syzkaller.appspotmail.com Cc: Jon Maloy Cc: Ying Xue Signed-off-by: Cong Wang Acked-by: Ying Xue Signed-off-by: David S. Miller --- net/tipc/netlink_compat.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c index 82f665728382..6376467e78f8 100644 --- a/net/tipc/netlink_compat.c +++ b/net/tipc/netlink_compat.c @@ -185,7 +185,10 @@ static int __tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, return -ENOMEM; buf->sk = msg->dst_sk; - __tipc_dump_start(&cb, msg->net); + if (__tipc_dump_start(&cb, msg->net)) { + kfree_skb(buf); + return -ENOMEM; + } do { int rem; From db191db813722297be36ffce2862e0f2b0e54d82 Mon Sep 17 00:00:00 2001 From: Pieter Jansen van Vuuren Date: Tue, 11 Sep 2018 06:38:44 -0700 Subject: [PATCH 0939/1762] nfp: flower: fix vlan match by checking both vlan id and vlan pcp Previously we only checked if the vlan id field is present when trying to match a vlan tag. The vlan id and vlan pcp field should be treated independently. Fixes: 5571e8c9f241 ("nfp: extend flower matching capabilities") Signed-off-by: Pieter Jansen van Vuuren Reviewed-by: Jakub Kicinski Signed-off-by: David S. Miller --- drivers/net/ethernet/netronome/nfp/flower/main.h | 1 + drivers/net/ethernet/netronome/nfp/flower/match.c | 2 +- drivers/net/ethernet/netronome/nfp/flower/offload.c | 11 +++++++++++ 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.h b/drivers/net/ethernet/netronome/nfp/flower/main.h index 85f8209bf007..81d941ab895c 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/main.h +++ b/drivers/net/ethernet/netronome/nfp/flower/main.h @@ -70,6 +70,7 @@ struct nfp_app; #define NFP_FL_FEATS_GENEVE BIT(0) #define NFP_FL_NBI_MTU_SETTING BIT(1) #define NFP_FL_FEATS_GENEVE_OPT BIT(2) +#define NFP_FL_FEATS_VLAN_PCP BIT(3) #define NFP_FL_FEATS_LAG BIT(31) struct nfp_fl_mask_id { diff --git a/drivers/net/ethernet/netronome/nfp/flower/match.c b/drivers/net/ethernet/netronome/nfp/flower/match.c index a0c72f277faa..17acb8cc6044 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/match.c +++ b/drivers/net/ethernet/netronome/nfp/flower/match.c @@ -56,7 +56,7 @@ nfp_flower_compile_meta_tci(struct nfp_flower_meta_tci *frame, FLOW_DISSECTOR_KEY_VLAN, target); /* Populate the tci field. */ - if (flow_vlan->vlan_id) { + if (flow_vlan->vlan_id || flow_vlan->vlan_priority) { tmp_tci = FIELD_PREP(NFP_FLOWER_MASK_VLAN_PRIO, flow_vlan->vlan_priority) | FIELD_PREP(NFP_FLOWER_MASK_VLAN_VID, diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c index 2edab01c3beb..bd19624f10cf 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/offload.c +++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c @@ -192,6 +192,17 @@ nfp_flower_calculate_key_layers(struct nfp_app *app, key_size += sizeof(struct nfp_flower_mac_mpls); } + if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_VLAN)) { + struct flow_dissector_key_vlan *flow_vlan; + + flow_vlan = skb_flow_dissector_target(flow->dissector, + FLOW_DISSECTOR_KEY_VLAN, + flow->mask); + if (!(priv->flower_ext_feats & NFP_FL_FEATS_VLAN_PCP) && + flow_vlan->vlan_priority) + return -EOPNOTSUPP; + } + if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL)) { struct flow_dissector_key_ipv4_addrs *mask_ipv4 = NULL; From 224de549f0beca58fb95c0b8da9cb2bfa8c6cc12 Mon Sep 17 00:00:00 2001 From: Louis Peens Date: Tue, 11 Sep 2018 06:38:45 -0700 Subject: [PATCH 0940/1762] nfp: flower: reject tunnel encap with ipv6 outer headers for offloading This fixes a bug where ipv6 tunnels would report that it is getting offloaded to hardware but would actually be rejected by hardware. Fixes: b27d6a95a70d ("nfp: compile flower vxlan tunnel set actions") Signed-off-by: Louis Peens Reviewed-by: John Hurley Reviewed-by: Simon Horman Reviewed-by: Jakub Kicinski Signed-off-by: David S. Miller --- drivers/net/ethernet/netronome/nfp/flower/action.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/ethernet/netronome/nfp/flower/action.c b/drivers/net/ethernet/netronome/nfp/flower/action.c index 9044496803e6..46ba0cf257c6 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/action.c +++ b/drivers/net/ethernet/netronome/nfp/flower/action.c @@ -52,6 +52,7 @@ #define NFP_FL_TUNNEL_CSUM cpu_to_be16(0x01) #define NFP_FL_TUNNEL_KEY cpu_to_be16(0x04) #define NFP_FL_TUNNEL_GENEVE_OPT cpu_to_be16(0x0800) +#define NFP_FL_SUPPORTED_TUNNEL_INFO_FLAGS IP_TUNNEL_INFO_TX #define NFP_FL_SUPPORTED_IPV4_UDP_TUN_FLAGS (NFP_FL_TUNNEL_CSUM | \ NFP_FL_TUNNEL_KEY | \ NFP_FL_TUNNEL_GENEVE_OPT) @@ -741,11 +742,16 @@ nfp_flower_loop_action(struct nfp_app *app, const struct tc_action *a, nfp_fl_push_vlan(psh_v, a); *a_len += sizeof(struct nfp_fl_push_vlan); } else if (is_tcf_tunnel_set(a)) { + struct ip_tunnel_info *ip_tun = tcf_tunnel_info(a); struct nfp_repr *repr = netdev_priv(netdev); + *tun_type = nfp_fl_get_tun_from_act_l4_port(repr->app, a); if (*tun_type == NFP_FL_TUNNEL_NONE) return -EOPNOTSUPP; + if (ip_tun->mode & ~NFP_FL_SUPPORTED_TUNNEL_INFO_FLAGS) + return -EOPNOTSUPP; + /* Pre-tunnel action is required for tunnel encap. * This checks for next hop entries on NFP. * If none, the packet falls back before applying other actions. From dd066823db2ac4e22f721ec85190817b58059a54 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Wed, 12 Sep 2018 14:06:10 -0700 Subject: [PATCH 0941/1762] bpf/verifier: disallow pointer subtraction Subtraction of pointers was accidentally allowed for unpriv programs by commit 82abbf8d2fc4. Revert that part of commit. Fixes: 82abbf8d2fc4 ("bpf: do not allow root to mangle valid pointers") Reported-by: Jann Horn Acked-by: Daniel Borkmann Signed-off-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann --- kernel/bpf/verifier.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 92246117d2b0..bb07e74b34a2 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -3163,7 +3163,7 @@ static int adjust_reg_min_max_vals(struct bpf_verifier_env *env, * an arbitrary scalar. Disallow all math except * pointer subtraction */ - if (opcode == BPF_SUB){ + if (opcode == BPF_SUB && env->allow_ptr_leaks) { mark_reg_unknown(env, regs, insn->dst_reg); return 0; } From 67e3816842fe6414d629c7515b955952ec40c7d7 Mon Sep 17 00:00:00 2001 From: Steve Wise Date: Fri, 31 Aug 2018 07:16:03 -0700 Subject: [PATCH 0942/1762] RDMA/uverbs: Atomically flush and mark closed the comp event queue Currently a uverbs completion event queue is flushed of events in ib_uverbs_comp_event_close() with the queue spinlock held and then released. Yet setting ev_queue->is_closed is not set until later in uverbs_hot_unplug_completion_event_file(). In between the time ib_uverbs_comp_event_close() releases the lock and uverbs_hot_unplug_completion_event_file() acquires the lock, a completion event can arrive and be inserted into the event queue by ib_uverbs_comp_handler(). This can cause a "double add" list_add warning or crash depending on the kernel configuration, or a memory leak because the event is never dequeued since the queue is already closed down. So add setting ev_queue->is_closed = 1 to ib_uverbs_comp_event_close(). Cc: stable@vger.kernel.org Fixes: 1e7710f3f656 ("IB/core: Change completion channel to use the reworked objects schema") Signed-off-by: Steve Wise Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/uverbs_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index 6d974e2363df..50152c1b1004 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -440,6 +440,7 @@ static int ib_uverbs_comp_event_close(struct inode *inode, struct file *filp) list_del(&entry->obj_list); kfree(entry); } + file->ev_queue.is_closed = 1; spin_unlock_irq(&file->ev_queue.lock); uverbs_close_fd(filp); From 4c3d795cb012a378855543a775408fba1ccff6f2 Mon Sep 17 00:00:00 2001 From: Tushar Dave Date: Wed, 12 Sep 2018 22:15:29 +0200 Subject: [PATCH 0943/1762] bpf: use __GFP_COMP while allocating page Helper bpg_msg_pull_data() can allocate multiple pages while linearizing multiple scatterlist elements into one shared page. However, if the shared page has size > PAGE_SIZE, using copy_page_to_iter() causes below warning. e.g. [ 6367.019832] WARNING: CPU: 2 PID: 7410 at lib/iov_iter.c:825 page_copy_sane.part.8+0x0/0x8 To avoid above warning, use __GFP_COMP while allocating multiple contiguous pages. Fixes: 015632bb30da ("bpf: sk_msg program helper bpf_sk_msg_pull_data") Signed-off-by: Tushar Dave Signed-off-by: Daniel Borkmann --- net/core/filter.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/core/filter.c b/net/core/filter.c index aecdeba052d3..5e00f2b85a56 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -2344,7 +2344,8 @@ BPF_CALL_4(bpf_msg_pull_data, if (unlikely(bytes_sg_total > copy)) return -EINVAL; - page = alloc_pages(__GFP_NOWARN | GFP_ATOMIC, get_order(copy)); + page = alloc_pages(__GFP_NOWARN | GFP_ATOMIC | __GFP_COMP, + get_order(copy)); if (unlikely(!page)) return -ENOMEM; p = page_address(page); From dfb06cba8c73c0704710b2e3fbe2c35ac66a01b4 Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Wed, 5 Sep 2018 13:31:40 -0700 Subject: [PATCH 0944/1762] uaccess: Fix is_source param for check_copy_size() in copy_to_iter_mcsafe() copy_to_iter_mcsafe() is passing in the is_source parameter as "false" to check_copy_size(). This is different than what copy_to_iter() does. Also, the addr parameter passed to check_copy_size() is the source so therefore we should be passing in "true" instead. Fixes: 8780356ef630 ("x86/asm/memcpy_mcsafe: Define copy_to_iter_mcsafe()") Cc: Reported-by: Fan Du Signed-off-by: Dave Jiang Reviewed-by: Vishal Verma Reported-by: Wenwei Tao Signed-off-by: Dan Williams --- include/linux/uio.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/uio.h b/include/linux/uio.h index 409c845d4cd3..422b1c01ee0d 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -172,7 +172,7 @@ size_t copy_from_iter_flushcache(void *addr, size_t bytes, struct iov_iter *i) static __always_inline __must_check size_t copy_to_iter_mcsafe(void *addr, size_t bytes, struct iov_iter *i) { - if (unlikely(!check_copy_size(addr, bytes, false))) + if (unlikely(!check_copy_size(addr, bytes, true))) return 0; else return _copy_to_iter_mcsafe(addr, bytes, i); From 097f5863b1a0c9901f180bbd56ae7d630655faaa Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 6 Sep 2018 12:47:01 +0300 Subject: [PATCH 0945/1762] cifs: read overflow in is_valid_oplock_break() We need to verify that the "data_offset" is within bounds. Reported-by: Dr Silvio Cesare of InfoSect Signed-off-by: Dan Carpenter Signed-off-by: Steve French Reviewed-by: Aurelien Aptel --- fs/cifs/misc.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c index dacb2c05674c..6926685e513c 100644 --- a/fs/cifs/misc.c +++ b/fs/cifs/misc.c @@ -402,9 +402,17 @@ is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv) (struct smb_com_transaction_change_notify_rsp *)buf; struct file_notify_information *pnotify; __u32 data_offset = 0; + size_t len = srv->total_read - sizeof(pSMBr->hdr.smb_buf_length); + if (get_bcc(buf) > sizeof(struct file_notify_information)) { data_offset = le32_to_cpu(pSMBr->DataOffset); + if (data_offset > + len - sizeof(struct file_notify_information)) { + cifs_dbg(FYI, "invalid data_offset %u\n", + data_offset); + return true; + } pnotify = (struct file_notify_information *) ((char *)&pSMBr->hdr.Protocol + data_offset); cifs_dbg(FYI, "dnotify on %s Action: 0x%x\n", From b228ba1cb95afbaeeb86cf06cd9fd6f6369c3b14 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 12 Sep 2018 18:21:11 -0600 Subject: [PATCH 0946/1762] null_blk: fix zoned support for non-rq based operation The supported added for zones in null_blk seem to assume that only rq based operation is possible. But this depends on the queue_mode setting, if this is set to 0, then cmd->bio is what we need to be operating on. Right now any attempt to load null_blk with queue_mode=0 will insta-crash, since cmd->rq is NULL and null_handle_cmd() assumes it to always be set. Make the zoned code deal with bio's instead, or pass in the appropriate sector/nr_sectors instead. Fixes: ca4b2a011948 ("null_blk: add zone support") Tested-by: Omar Sandoval Signed-off-by: Jens Axboe --- drivers/block/null_blk.h | 17 +++++++------ drivers/block/null_blk_main.c | 45 ++++++++++++++++++++++++++++------ drivers/block/null_blk_zoned.c | 34 +++++++++++-------------- 3 files changed, 62 insertions(+), 34 deletions(-) diff --git a/drivers/block/null_blk.h b/drivers/block/null_blk.h index d81781f22dba..34e0030f0592 100644 --- a/drivers/block/null_blk.h +++ b/drivers/block/null_blk.h @@ -87,10 +87,10 @@ struct nullb { #ifdef CONFIG_BLK_DEV_ZONED int null_zone_init(struct nullb_device *dev); void null_zone_exit(struct nullb_device *dev); -blk_status_t null_zone_report(struct nullb *nullb, - struct nullb_cmd *cmd); -void null_zone_write(struct nullb_cmd *cmd); -void null_zone_reset(struct nullb_cmd *cmd); +blk_status_t null_zone_report(struct nullb *nullb, struct bio *bio); +void null_zone_write(struct nullb_cmd *cmd, sector_t sector, + unsigned int nr_sectors); +void null_zone_reset(struct nullb_cmd *cmd, sector_t sector); #else static inline int null_zone_init(struct nullb_device *dev) { @@ -98,11 +98,14 @@ static inline int null_zone_init(struct nullb_device *dev) } static inline void null_zone_exit(struct nullb_device *dev) {} static inline blk_status_t null_zone_report(struct nullb *nullb, - struct nullb_cmd *cmd) + struct bio *bio) { return BLK_STS_NOTSUPP; } -static inline void null_zone_write(struct nullb_cmd *cmd) {} -static inline void null_zone_reset(struct nullb_cmd *cmd) {} +static inline void null_zone_write(struct nullb_cmd *cmd, sector_t sector, + unsigned int nr_sectors) +{ +} +static inline void null_zone_reset(struct nullb_cmd *cmd, sector_t sector) {} #endif /* CONFIG_BLK_DEV_ZONED */ #endif /* __NULL_BLK_H */ diff --git a/drivers/block/null_blk_main.c b/drivers/block/null_blk_main.c index 6127e3ff7b4b..093b614d6524 100644 --- a/drivers/block/null_blk_main.c +++ b/drivers/block/null_blk_main.c @@ -1157,16 +1157,33 @@ static void null_restart_queue_async(struct nullb *nullb) } } +static bool cmd_report_zone(struct nullb *nullb, struct nullb_cmd *cmd) +{ + struct nullb_device *dev = cmd->nq->dev; + + if (dev->queue_mode == NULL_Q_BIO) { + if (bio_op(cmd->bio) == REQ_OP_ZONE_REPORT) { + cmd->error = null_zone_report(nullb, cmd->bio); + return true; + } + } else { + if (req_op(cmd->rq) == REQ_OP_ZONE_REPORT) { + cmd->error = null_zone_report(nullb, cmd->rq->bio); + return true; + } + } + + return false; +} + static blk_status_t null_handle_cmd(struct nullb_cmd *cmd) { struct nullb_device *dev = cmd->nq->dev; struct nullb *nullb = dev->nullb; int err = 0; - if (req_op(cmd->rq) == REQ_OP_ZONE_REPORT) { - cmd->error = null_zone_report(nullb, cmd); + if (cmd_report_zone(nullb, cmd)) goto out; - } if (test_bit(NULLB_DEV_FL_THROTTLED, &dev->flags)) { struct request *rq = cmd->rq; @@ -1234,10 +1251,24 @@ static blk_status_t null_handle_cmd(struct nullb_cmd *cmd) cmd->error = errno_to_blk_status(err); if (!cmd->error && dev->zoned) { - if (req_op(cmd->rq) == REQ_OP_WRITE) - null_zone_write(cmd); - else if (req_op(cmd->rq) == REQ_OP_ZONE_RESET) - null_zone_reset(cmd); + sector_t sector; + unsigned int nr_sectors; + int op; + + if (dev->queue_mode == NULL_Q_BIO) { + op = bio_op(cmd->bio); + sector = cmd->bio->bi_iter.bi_sector; + nr_sectors = cmd->bio->bi_iter.bi_size >> 9; + } else { + op = req_op(cmd->rq); + sector = blk_rq_pos(cmd->rq); + nr_sectors = blk_rq_sectors(cmd->rq); + } + + if (op == REQ_OP_WRITE) + null_zone_write(cmd, sector, nr_sectors); + else if (op == REQ_OP_ZONE_RESET) + null_zone_reset(cmd, sector); } out: /* Complete IO by inline, softirq or timer */ diff --git a/drivers/block/null_blk_zoned.c b/drivers/block/null_blk_zoned.c index a979ca00d7be..7c6b86d98700 100644 --- a/drivers/block/null_blk_zoned.c +++ b/drivers/block/null_blk_zoned.c @@ -48,8 +48,8 @@ void null_zone_exit(struct nullb_device *dev) kvfree(dev->zones); } -static void null_zone_fill_rq(struct nullb_device *dev, struct request *rq, - unsigned int zno, unsigned int nr_zones) +static void null_zone_fill_bio(struct nullb_device *dev, struct bio *bio, + unsigned int zno, unsigned int nr_zones) { struct blk_zone_report_hdr *hdr = NULL; struct bio_vec bvec; @@ -57,7 +57,7 @@ static void null_zone_fill_rq(struct nullb_device *dev, struct request *rq, void *addr; unsigned int zones_to_cpy; - bio_for_each_segment(bvec, rq->bio, iter) { + bio_for_each_segment(bvec, bio, iter) { addr = kmap_atomic(bvec.bv_page); zones_to_cpy = bvec.bv_len / sizeof(struct blk_zone); @@ -84,29 +84,24 @@ static void null_zone_fill_rq(struct nullb_device *dev, struct request *rq, } } -blk_status_t null_zone_report(struct nullb *nullb, - struct nullb_cmd *cmd) +blk_status_t null_zone_report(struct nullb *nullb, struct bio *bio) { struct nullb_device *dev = nullb->dev; - struct request *rq = cmd->rq; - unsigned int zno = null_zone_no(dev, blk_rq_pos(rq)); + unsigned int zno = null_zone_no(dev, bio->bi_iter.bi_sector); unsigned int nr_zones = dev->nr_zones - zno; - unsigned int max_zones = (blk_rq_bytes(rq) / - sizeof(struct blk_zone)) - 1; + unsigned int max_zones; + max_zones = (bio->bi_iter.bi_size / sizeof(struct blk_zone)) - 1; nr_zones = min_t(unsigned int, nr_zones, max_zones); - - null_zone_fill_rq(nullb->dev, rq, zno, nr_zones); + null_zone_fill_bio(nullb->dev, bio, zno, nr_zones); return BLK_STS_OK; } -void null_zone_write(struct nullb_cmd *cmd) +void null_zone_write(struct nullb_cmd *cmd, sector_t sector, + unsigned int nr_sectors) { struct nullb_device *dev = cmd->nq->dev; - struct request *rq = cmd->rq; - sector_t sector = blk_rq_pos(rq); - unsigned int rq_sectors = blk_rq_sectors(rq); unsigned int zno = null_zone_no(dev, sector); struct blk_zone *zone = &dev->zones[zno]; @@ -118,7 +113,7 @@ void null_zone_write(struct nullb_cmd *cmd) case BLK_ZONE_COND_EMPTY: case BLK_ZONE_COND_IMP_OPEN: /* Writes must be at the write pointer position */ - if (blk_rq_pos(rq) != zone->wp) { + if (sector != zone->wp) { cmd->error = BLK_STS_IOERR; break; } @@ -126,7 +121,7 @@ void null_zone_write(struct nullb_cmd *cmd) if (zone->cond == BLK_ZONE_COND_EMPTY) zone->cond = BLK_ZONE_COND_IMP_OPEN; - zone->wp += rq_sectors; + zone->wp += nr_sectors; if (zone->wp == zone->start + zone->len) zone->cond = BLK_ZONE_COND_FULL; break; @@ -137,11 +132,10 @@ void null_zone_write(struct nullb_cmd *cmd) } } -void null_zone_reset(struct nullb_cmd *cmd) +void null_zone_reset(struct nullb_cmd *cmd, sector_t sector) { struct nullb_device *dev = cmd->nq->dev; - struct request *rq = cmd->rq; - unsigned int zno = null_zone_no(dev, blk_rq_pos(rq)); + unsigned int zno = null_zone_no(dev, sector); struct blk_zone *zone = &dev->zones[zno]; zone->cond = BLK_ZONE_COND_EMPTY; From 3483f08106fcd0e8edad2b9f2fc4726d25177799 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Thu, 13 Sep 2018 10:56:38 +1000 Subject: [PATCH 0947/1762] drm/nouveau/devinit: fix warning when PMU/PRE_OS is missing Messed up when sending pull request and sent an outdated version of previous patch, this fixes it up to remove warnings. Signed-off-by: Ben Skeggs --- .../drm/nouveau/nvkm/subdev/devinit/gm200.c | 21 ++++++++++--------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c index d65959ef0564..17235e940ca9 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c @@ -86,10 +86,8 @@ pmu_load(struct nv50_devinit *init, u8 type, bool post, struct nvkm_bios *bios = subdev->device->bios; struct nvbios_pmuR pmu; - if (!nvbios_pmuRm(bios, type, &pmu)) { - nvkm_error(subdev, "VBIOS PMU fuc %02x not found\n", type); + if (!nvbios_pmuRm(bios, type, &pmu)) return -EINVAL; - } if (!post) return 0; @@ -124,29 +122,30 @@ gm200_devinit_post(struct nvkm_devinit *base, bool post) return -EINVAL; } + /* Upload DEVINIT application from VBIOS onto PMU. */ ret = pmu_load(init, 0x04, post, &exec, &args); - if (ret) + if (ret) { + nvkm_error(subdev, "VBIOS PMU/DEVINIT not found\n"); return ret; + } - /* upload first chunk of init data */ + /* Upload tables required by opcodes in boot scripts. */ if (post) { - // devinit tables u32 pmu = pmu_args(init, args + 0x08, 0x08); u32 img = nvbios_rd16(bios, bit_I.offset + 0x14); u32 len = nvbios_rd16(bios, bit_I.offset + 0x16); pmu_data(init, pmu, img, len); } - /* upload second chunk of init data */ + /* Upload boot scripts. */ if (post) { - // devinit boot scripts u32 pmu = pmu_args(init, args + 0x08, 0x10); u32 img = nvbios_rd16(bios, bit_I.offset + 0x18); u32 len = nvbios_rd16(bios, bit_I.offset + 0x1a); pmu_data(init, pmu, img, len); } - /* execute init tables */ + /* Execute DEVINIT. */ if (post) { nvkm_wr32(device, 0x10a040, 0x00005000); pmu_exec(init, exec); @@ -157,7 +156,9 @@ gm200_devinit_post(struct nvkm_devinit *base, bool post) return -ETIMEDOUT; } - /* load and execute some other ucode image (bios therm?) */ + /* Optional: Execute PRE_OS application on PMU, which should at + * least take care of fans until a full PMU has been loaded. + */ pmu_load(init, 0x01, post, NULL, NULL); return 0; } From 3702a0585e64d70d5bf73bf3e943b8d6005b72c1 Mon Sep 17 00:00:00 2001 From: Brijesh Singh Date: Wed, 15 Aug 2018 16:11:25 -0500 Subject: [PATCH 0948/1762] crypto: ccp - add timeout support in the SEV command Currently, the CCP driver assumes that the SEV command issued to the PSP will always return (i.e. it will never hang). But recently, firmware bugs have shown that a command can hang. Since of the SEV commands are used in probe routines, this can cause boot hangs and/or loss of virtualization capabilities. To protect against firmware bugs, add a timeout in the SEV command execution flow. If a command does not complete within the specified timeout then return -ETIMEOUT and stop the driver from executing any further commands since the state of the SEV firmware is unknown. Cc: Tom Lendacky Cc: Gary Hook Cc: Herbert Xu Cc: linux-kernel@vger.kernel.org Signed-off-by: Brijesh Singh Signed-off-by: Herbert Xu --- drivers/crypto/ccp/psp-dev.c | 46 ++++++++++++++++++++++++++++++++---- 1 file changed, 41 insertions(+), 5 deletions(-) diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c index 218739b961fe..72790d88236d 100644 --- a/drivers/crypto/ccp/psp-dev.c +++ b/drivers/crypto/ccp/psp-dev.c @@ -38,6 +38,17 @@ static DEFINE_MUTEX(sev_cmd_mutex); static struct sev_misc_dev *misc_dev; static struct psp_device *psp_master; +static int psp_cmd_timeout = 100; +module_param(psp_cmd_timeout, int, 0644); +MODULE_PARM_DESC(psp_cmd_timeout, " default timeout value, in seconds, for PSP commands"); + +static int psp_probe_timeout = 5; +module_param(psp_probe_timeout, int, 0644); +MODULE_PARM_DESC(psp_probe_timeout, " default timeout value, in seconds, during PSP device probe"); + +static bool psp_dead; +static int psp_timeout; + static struct psp_device *psp_alloc_struct(struct sp_device *sp) { struct device *dev = sp->dev; @@ -82,10 +93,19 @@ done: return IRQ_HANDLED; } -static void sev_wait_cmd_ioc(struct psp_device *psp, unsigned int *reg) +static int sev_wait_cmd_ioc(struct psp_device *psp, + unsigned int *reg, unsigned int timeout) { - wait_event(psp->sev_int_queue, psp->sev_int_rcvd); + int ret; + + ret = wait_event_timeout(psp->sev_int_queue, + psp->sev_int_rcvd, timeout * HZ); + if (!ret) + return -ETIMEDOUT; + *reg = ioread32(psp->io_regs + psp->vdata->cmdresp_reg); + + return 0; } static int sev_cmd_buffer_len(int cmd) @@ -133,12 +153,15 @@ static int __sev_do_cmd_locked(int cmd, void *data, int *psp_ret) if (!psp) return -ENODEV; + if (psp_dead) + return -EBUSY; + /* Get the physical address of the command buffer */ phys_lsb = data ? lower_32_bits(__psp_pa(data)) : 0; phys_msb = data ? upper_32_bits(__psp_pa(data)) : 0; - dev_dbg(psp->dev, "sev command id %#x buffer 0x%08x%08x\n", - cmd, phys_msb, phys_lsb); + dev_dbg(psp->dev, "sev command id %#x buffer 0x%08x%08x timeout %us\n", + cmd, phys_msb, phys_lsb, psp_timeout); print_hex_dump_debug("(in): ", DUMP_PREFIX_OFFSET, 16, 2, data, sev_cmd_buffer_len(cmd), false); @@ -154,7 +177,18 @@ static int __sev_do_cmd_locked(int cmd, void *data, int *psp_ret) iowrite32(reg, psp->io_regs + psp->vdata->cmdresp_reg); /* wait for command completion */ - sev_wait_cmd_ioc(psp, ®); + ret = sev_wait_cmd_ioc(psp, ®, psp_timeout); + if (ret) { + if (psp_ret) + *psp_ret = 0; + + dev_err(psp->dev, "sev command %#x timed out, disabling PSP \n", cmd); + psp_dead = true; + + return ret; + } + + psp_timeout = psp_cmd_timeout; if (psp_ret) *psp_ret = reg & PSP_CMDRESP_ERR_MASK; @@ -888,6 +922,8 @@ void psp_pci_init(void) psp_master = sp->psp_data; + psp_timeout = psp_probe_timeout; + if (sev_get_api_version()) goto err; From 3b7d96a0dbb6b630878597a1838fc39f808b761b Mon Sep 17 00:00:00 2001 From: Keerthy Date: Wed, 8 Aug 2018 18:44:59 +0530 Subject: [PATCH 0949/1762] clocksource/drivers/ti-32k: Add CLOCK_SOURCE_SUSPEND_NONSTOP flag for non-am43 SoCs The 32k clocksource is NONSTOP for non-am43 SoCs. Hence add the flag for all the other SoCs. Reported-by: Tony Lindgren Signed-off-by: Keerthy Acked-by: Tony Lindgren Signed-off-by: Daniel Lezcano --- drivers/clocksource/timer-ti-32k.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/clocksource/timer-ti-32k.c b/drivers/clocksource/timer-ti-32k.c index 29e2e1a78a43..6949a9113dbb 100644 --- a/drivers/clocksource/timer-ti-32k.c +++ b/drivers/clocksource/timer-ti-32k.c @@ -97,6 +97,9 @@ static int __init ti_32k_timer_init(struct device_node *np) return -ENXIO; } + if (!of_machine_is_compatible("ti,am43")) + ti_32k_timer.cs.flags |= CLOCK_SOURCE_SUSPEND_NONSTOP; + ti_32k_timer.counter = ti_32k_timer.base; /* From 22d0bd82cc7cec7d9ed4bd5913f3ab65643364be Mon Sep 17 00:00:00 2001 From: Xin Long Date: Tue, 11 Sep 2018 14:33:58 +0800 Subject: [PATCH 0950/1762] ipv6: use rt6_info members when dst is set in rt6_fill_node In inet6_rtm_getroute, since Commit 93531c674315 ("net/ipv6: separate handling of FIB entries from dst based routes"), it has used rt->from to dump route info instead of rt. However for some route like cache, some of its information like flags or gateway is not the same as that of the 'from' one. It caused 'ip route get' to dump the wrong route information. In Jianlin's testing, the output information even lost the expiration time for a pmtu route cache due to the wrong fib6_flags. So change to use rt6_info members for dst addr, src addr, flags and gateway when it tries to dump a route entry without fibmatch set. v1->v2: - not use rt6i_prefsrc. - also fix the gw dump issue. Fixes: 93531c674315 ("net/ipv6: separate handling of FIB entries from dst based routes") Reported-by: Jianlin Shi Signed-off-by: Xin Long Signed-off-by: David S. Miller --- net/ipv6/route.c | 42 ++++++++++++++++++++++++++++++------------ 1 file changed, 30 insertions(+), 12 deletions(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 18e00ce1719a..3eed045c65a5 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -4670,20 +4670,31 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb, int iif, int type, u32 portid, u32 seq, unsigned int flags) { - struct rtmsg *rtm; + struct rt6_info *rt6 = (struct rt6_info *)dst; + struct rt6key *rt6_dst, *rt6_src; + u32 *pmetrics, table, rt6_flags; struct nlmsghdr *nlh; + struct rtmsg *rtm; long expires = 0; - u32 *pmetrics; - u32 table; nlh = nlmsg_put(skb, portid, seq, type, sizeof(*rtm), flags); if (!nlh) return -EMSGSIZE; + if (rt6) { + rt6_dst = &rt6->rt6i_dst; + rt6_src = &rt6->rt6i_src; + rt6_flags = rt6->rt6i_flags; + } else { + rt6_dst = &rt->fib6_dst; + rt6_src = &rt->fib6_src; + rt6_flags = rt->fib6_flags; + } + rtm = nlmsg_data(nlh); rtm->rtm_family = AF_INET6; - rtm->rtm_dst_len = rt->fib6_dst.plen; - rtm->rtm_src_len = rt->fib6_src.plen; + rtm->rtm_dst_len = rt6_dst->plen; + rtm->rtm_src_len = rt6_src->plen; rtm->rtm_tos = 0; if (rt->fib6_table) table = rt->fib6_table->tb6_id; @@ -4698,7 +4709,7 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb, rtm->rtm_scope = RT_SCOPE_UNIVERSE; rtm->rtm_protocol = rt->fib6_protocol; - if (rt->fib6_flags & RTF_CACHE) + if (rt6_flags & RTF_CACHE) rtm->rtm_flags |= RTM_F_CLONED; if (dest) { @@ -4706,7 +4717,7 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb, goto nla_put_failure; rtm->rtm_dst_len = 128; } else if (rtm->rtm_dst_len) - if (nla_put_in6_addr(skb, RTA_DST, &rt->fib6_dst.addr)) + if (nla_put_in6_addr(skb, RTA_DST, &rt6_dst->addr)) goto nla_put_failure; #ifdef CONFIG_IPV6_SUBTREES if (src) { @@ -4714,12 +4725,12 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb, goto nla_put_failure; rtm->rtm_src_len = 128; } else if (rtm->rtm_src_len && - nla_put_in6_addr(skb, RTA_SRC, &rt->fib6_src.addr)) + nla_put_in6_addr(skb, RTA_SRC, &rt6_src->addr)) goto nla_put_failure; #endif if (iif) { #ifdef CONFIG_IPV6_MROUTE - if (ipv6_addr_is_multicast(&rt->fib6_dst.addr)) { + if (ipv6_addr_is_multicast(&rt6_dst->addr)) { int err = ip6mr_get_route(net, skb, rtm, portid); if (err == 0) @@ -4754,7 +4765,14 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb, /* For multipath routes, walk the siblings list and add * each as a nexthop within RTA_MULTIPATH. */ - if (rt->fib6_nsiblings) { + if (rt6) { + if (rt6_flags & RTF_GATEWAY && + nla_put_in6_addr(skb, RTA_GATEWAY, &rt6->rt6i_gateway)) + goto nla_put_failure; + + if (dst->dev && nla_put_u32(skb, RTA_OIF, dst->dev->ifindex)) + goto nla_put_failure; + } else if (rt->fib6_nsiblings) { struct fib6_info *sibling, *next_sibling; struct nlattr *mp; @@ -4777,7 +4795,7 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb, goto nla_put_failure; } - if (rt->fib6_flags & RTF_EXPIRES) { + if (rt6_flags & RTF_EXPIRES) { expires = dst ? dst->expires : rt->expires; expires -= jiffies; } @@ -4785,7 +4803,7 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb, if (rtnl_put_cacheinfo(skb, dst, 0, expires, dst ? dst->error : 0) < 0) goto nla_put_failure; - if (nla_put_u8(skb, RTA_PREF, IPV6_EXTRACT_PREF(rt->fib6_flags))) + if (nla_put_u8(skb, RTA_PREF, IPV6_EXTRACT_PREF(rt6_flags))) goto nla_put_failure; From ad4f15dc2c70b1de5e0a64d27335962fbc9cf71c Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Tue, 11 Sep 2018 09:04:48 +0200 Subject: [PATCH 0951/1762] xen/netfront: don't bug in case of too many frags Commit 57f230ab04d291 ("xen/netfront: raise max number of slots in xennet_get_responses()") raised the max number of allowed slots by one. This seems to be problematic in some configurations with netback using a larger MAX_SKB_FRAGS value (e.g. old Linux kernel with MAX_SKB_FRAGS defined as 18 instead of nowadays 17). Instead of BUG_ON() in this case just fall back to retransmission. Fixes: 57f230ab04d291 ("xen/netfront: raise max number of slots in xennet_get_responses()") Cc: stable@vger.kernel.org Signed-off-by: Juergen Gross Signed-off-by: David S. Miller --- drivers/net/xen-netfront.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index 9407acbd19a9..f17f602e6171 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -908,7 +908,11 @@ static RING_IDX xennet_fill_frags(struct netfront_queue *queue, BUG_ON(pull_to <= skb_headlen(skb)); __pskb_pull_tail(skb, pull_to - skb_headlen(skb)); } - BUG_ON(skb_shinfo(skb)->nr_frags >= MAX_SKB_FRAGS); + if (unlikely(skb_shinfo(skb)->nr_frags >= MAX_SKB_FRAGS)) { + queue->rx.rsp_cons = ++cons; + kfree_skb(nskb); + return ~0U; + } skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, skb_frag_page(nfrag), @@ -1045,6 +1049,8 @@ err: skb->len += rx->status; i = xennet_fill_frags(queue, skb, &tmpq); + if (unlikely(i == ~0U)) + goto err; if (rx->flags & XEN_NETRXF_csum_blank) skb->ip_summed = CHECKSUM_PARTIAL; From f5b9bac7451cfc962970cb3fa3a7027ffa69e369 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Tue, 11 Sep 2018 14:22:23 -0700 Subject: [PATCH 0952/1762] net_sched: notify filter deletion when deleting a chain When we delete a chain of filters, we need to notify user-space we are deleting each filters in this chain too. Fixes: 32a4f5ecd738 ("net: sched: introduce chain object to uapi") Cc: Jiri Pirko Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- net/sched/cls_api.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index 1a67af8a6e8c..0a75cb2e5e7b 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -1902,6 +1902,8 @@ replay: RTM_NEWCHAIN, false); break; case RTM_DELCHAIN: + tfilter_notify_chain(net, skb, block, q, parent, n, + chain, RTM_DELTFILTER); /* Flush the chain first as the user requested chain removal. */ tcf_chain_flush(chain); /* In case the chain was successfully deleted, put a reference From 831b624df1b420c8f9281ed1307a8db23afb72df Mon Sep 17 00:00:00 2001 From: Bin Yang Date: Wed, 12 Sep 2018 03:36:34 +0000 Subject: [PATCH 0953/1762] pstore: Fix incorrect persistent ram buffer mapping persistent_ram_vmap() returns the page start vaddr. persistent_ram_iomap() supports non-page-aligned mapping. persistent_ram_buffer_map() always adds offset-in-page to the vaddr returned from these two functions, which causes incorrect mapping of non-page-aligned persistent ram buffer. By default ftrace_size is 4096 and max_ftrace_cnt is nr_cpu_ids. Without this patch, the zone_sz in ramoops_init_przs() is 4096/nr_cpu_ids which might not be page aligned. If the offset-in-page > 2048, the vaddr will be in next page. If the next page is not mapped, it will cause kernel panic: [ 0.074231] BUG: unable to handle kernel paging request at ffffa19e0081b000 ... [ 0.075000] RIP: 0010:persistent_ram_new+0x1f8/0x39f ... [ 0.075000] Call Trace: [ 0.075000] ramoops_init_przs.part.10.constprop.15+0x105/0x260 [ 0.075000] ramoops_probe+0x232/0x3a0 [ 0.075000] platform_drv_probe+0x3e/0xa0 [ 0.075000] driver_probe_device+0x2cd/0x400 [ 0.075000] __driver_attach+0xe4/0x110 [ 0.075000] ? driver_probe_device+0x400/0x400 [ 0.075000] bus_for_each_dev+0x70/0xa0 [ 0.075000] driver_attach+0x1e/0x20 [ 0.075000] bus_add_driver+0x159/0x230 [ 0.075000] ? do_early_param+0x95/0x95 [ 0.075000] driver_register+0x70/0xc0 [ 0.075000] ? init_pstore_fs+0x4d/0x4d [ 0.075000] __platform_driver_register+0x36/0x40 [ 0.075000] ramoops_init+0x12f/0x131 [ 0.075000] do_one_initcall+0x4d/0x12c [ 0.075000] ? do_early_param+0x95/0x95 [ 0.075000] kernel_init_freeable+0x19b/0x222 [ 0.075000] ? rest_init+0xbb/0xbb [ 0.075000] kernel_init+0xe/0xfc [ 0.075000] ret_from_fork+0x3a/0x50 Signed-off-by: Bin Yang [kees: add comments describing the mapping differences, updated commit log] Fixes: 24c3d2f342ed ("staging: android: persistent_ram: Make it possible to use memory outside of bootmem") Cc: stable@vger.kernel.org Signed-off-by: Kees Cook --- fs/pstore/ram_core.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c index 951a14edcf51..0792595ebcfb 100644 --- a/fs/pstore/ram_core.c +++ b/fs/pstore/ram_core.c @@ -429,7 +429,12 @@ static void *persistent_ram_vmap(phys_addr_t start, size_t size, vaddr = vmap(pages, page_count, VM_MAP, prot); kfree(pages); - return vaddr; + /* + * Since vmap() uses page granularity, we must add the offset + * into the page here, to get the byte granularity address + * into the mapping to represent the actual "start" location. + */ + return vaddr + offset_in_page(start); } static void *persistent_ram_iomap(phys_addr_t start, size_t size, @@ -448,6 +453,11 @@ static void *persistent_ram_iomap(phys_addr_t start, size_t size, else va = ioremap_wc(start, size); + /* + * Since request_mem_region() and ioremap() are byte-granularity + * there is no need handle anything special like we do when the + * vmap() case in persistent_ram_vmap() above. + */ return va; } @@ -468,7 +478,7 @@ static int persistent_ram_buffer_map(phys_addr_t start, phys_addr_t size, return -ENOMEM; } - prz->buffer = prz->vaddr + offset_in_page(start); + prz->buffer = prz->vaddr; prz->buffer_size = size - sizeof(struct persistent_ram_buffer); return 0; @@ -515,7 +525,8 @@ void persistent_ram_free(struct persistent_ram_zone *prz) if (prz->vaddr) { if (pfn_valid(prz->paddr >> PAGE_SHIFT)) { - vunmap(prz->vaddr); + /* We must vunmap() at page-granularity. */ + vunmap(prz->vaddr - offset_in_page(prz->paddr)); } else { iounmap(prz->vaddr); release_mem_region(prz->paddr, prz->size); From 5fe23f262e0548ca7f19fb79f89059a60d087d22 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Wed, 12 Sep 2018 16:27:44 -0700 Subject: [PATCH 0954/1762] ucma: fix a use-after-free in ucma_resolve_ip() There is a race condition between ucma_close() and ucma_resolve_ip(): CPU0 CPU1 ucma_resolve_ip(): ucma_close(): ctx = ucma_get_ctx(file, cmd.id); list_for_each_entry_safe(ctx, tmp, &file->ctx_list, list) { mutex_lock(&mut); idr_remove(&ctx_idr, ctx->id); mutex_unlock(&mut); ... mutex_lock(&mut); if (!ctx->closing) { mutex_unlock(&mut); rdma_destroy_id(ctx->cm_id); ... ucma_free_ctx(ctx); ret = rdma_resolve_addr(); ucma_put_ctx(ctx); Before idr_remove(), ucma_get_ctx() could still find the ctx and after rdma_destroy_id(), rdma_resolve_addr() may still access id_priv pointer. Also, ucma_put_ctx() may use ctx after ucma_free_ctx() too. ucma_close() should call ucma_put_ctx() too which tests the refcnt and waits for the last one releasing it. The similar pattern is already used by ucma_destroy_id(). Reported-and-tested-by: syzbot+da2591e115d57a9cbb8b@syzkaller.appspotmail.com Reported-by: syzbot+cfe3c1e8ef634ba8964b@syzkaller.appspotmail.com Cc: Jason Gunthorpe Cc: Doug Ledford Cc: Leon Romanovsky Signed-off-by: Cong Wang Reviewed-by: Leon Romanovsky Signed-off-by: Doug Ledford --- drivers/infiniband/core/ucma.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index 5f437d1570fb..21863ddde63e 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -1759,6 +1759,8 @@ static int ucma_close(struct inode *inode, struct file *filp) mutex_lock(&mut); if (!ctx->closing) { mutex_unlock(&mut); + ucma_put_ctx(ctx); + wait_for_completion(&ctx->comp); /* rdma_destroy_id ensures that no event handlers are * inflight for that id before releasing it. */ From 018349d70f28a78d5343b3660cb66e1667005f8a Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Thu, 13 Sep 2018 08:03:43 -0700 Subject: [PATCH 0955/1762] hv_netvsc: fix schedule in RCU context When netvsc device is removed it can call reschedule in RCU context. This happens because canceling the subchannel setup work could (in theory) cause a reschedule when manipulating the timer. To reproduce, run with lockdep enabled kernel and unbind a network device from hv_netvsc (via sysfs). [ 160.682011] WARNING: suspicious RCU usage [ 160.707466] 4.19.0-rc3-uio+ #2 Not tainted [ 160.709937] ----------------------------- [ 160.712352] ./include/linux/rcupdate.h:302 Illegal context switch in RCU read-side critical section! [ 160.723691] [ 160.723691] other info that might help us debug this: [ 160.723691] [ 160.730955] [ 160.730955] rcu_scheduler_active = 2, debug_locks = 1 [ 160.762813] 5 locks held by rebind-eth.sh/1812: [ 160.766851] #0: 000000008befa37a (sb_writers#6){.+.+}, at: vfs_write+0x184/0x1b0 [ 160.773416] #1: 00000000b097f236 (&of->mutex){+.+.}, at: kernfs_fop_write+0xe2/0x1a0 [ 160.783766] #2: 0000000041ee6889 (kn->count#3){++++}, at: kernfs_fop_write+0xeb/0x1a0 [ 160.787465] #3: 0000000056d92a74 (&dev->mutex){....}, at: device_release_driver_internal+0x39/0x250 [ 160.816987] #4: 0000000030f6031e (rcu_read_lock){....}, at: netvsc_remove+0x1e/0x250 [hv_netvsc] [ 160.828629] [ 160.828629] stack backtrace: [ 160.831966] CPU: 1 PID: 1812 Comm: rebind-eth.sh Not tainted 4.19.0-rc3-uio+ #2 [ 160.832952] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v1.0 11/26/2012 [ 160.832952] Call Trace: [ 160.832952] dump_stack+0x85/0xcb [ 160.832952] ___might_sleep+0x1a3/0x240 [ 160.832952] __flush_work+0x57/0x2e0 [ 160.832952] ? __mutex_lock+0x83/0x990 [ 160.832952] ? __kernfs_remove+0x24f/0x2e0 [ 160.832952] ? __kernfs_remove+0x1b2/0x2e0 [ 160.832952] ? mark_held_locks+0x50/0x80 [ 160.832952] ? get_work_pool+0x90/0x90 [ 160.832952] __cancel_work_timer+0x13c/0x1e0 [ 160.832952] ? netvsc_remove+0x1e/0x250 [hv_netvsc] [ 160.832952] ? __lock_is_held+0x55/0x90 [ 160.832952] netvsc_remove+0x9a/0x250 [hv_netvsc] [ 160.832952] vmbus_remove+0x26/0x30 [ 160.832952] device_release_driver_internal+0x18a/0x250 [ 160.832952] unbind_store+0xb4/0x180 [ 160.832952] kernfs_fop_write+0x113/0x1a0 [ 160.832952] __vfs_write+0x36/0x1a0 [ 160.832952] ? rcu_read_lock_sched_held+0x6b/0x80 [ 160.832952] ? rcu_sync_lockdep_assert+0x2e/0x60 [ 160.832952] ? __sb_start_write+0x141/0x1a0 [ 160.832952] ? vfs_write+0x184/0x1b0 [ 160.832952] vfs_write+0xbe/0x1b0 [ 160.832952] ksys_write+0x55/0xc0 [ 160.832952] do_syscall_64+0x60/0x1b0 [ 160.832952] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 160.832952] RIP: 0033:0x7fe48f4c8154 Resolve this by getting RTNL earlier. This is safe because the subchannel work queue does trylock on RTNL and will detect the race. Fixes: 7b2ee50c0cd5 ("hv_netvsc: common detach logic") Signed-off-by: Stephen Hemminger Reviewed-by: Haiyang Zhang Signed-off-by: David S. Miller --- drivers/net/hyperv/netvsc_drv.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 70921bbe0e28..915fbd66a02b 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -2272,17 +2272,15 @@ static int netvsc_remove(struct hv_device *dev) cancel_delayed_work_sync(&ndev_ctx->dwork); - rcu_read_lock(); - nvdev = rcu_dereference(ndev_ctx->nvdev); - - if (nvdev) + rtnl_lock(); + nvdev = rtnl_dereference(ndev_ctx->nvdev); + if (nvdev) cancel_work_sync(&nvdev->subchan_work); /* * Call to the vsc driver to let it know that the device is being * removed. Also blocks mtu and channel changes. */ - rtnl_lock(); vf_netdev = rtnl_dereference(ndev_ctx->vf_netdev); if (vf_netdev) netvsc_unregister_vf(vf_netdev); @@ -2294,7 +2292,6 @@ static int netvsc_remove(struct hv_device *dev) list_del(&ndev_ctx->list); rtnl_unlock(); - rcu_read_unlock(); hv_set_drvdata(dev, NULL); From 9824dfae5741275473a23a7ed5756c7b6efacc9d Mon Sep 17 00:00:00 2001 From: Willy Tarreau Date: Wed, 12 Sep 2018 07:36:35 +0200 Subject: [PATCH 0956/1762] net/appletalk: fix minor pointer leak to userspace in SIOCFINDIPDDPRT Fields ->dev and ->next of struct ipddp_route may be copied to userspace on the SIOCFINDIPDDPRT ioctl. This is only accessible to CAP_NET_ADMIN though. Let's manually copy the relevant fields instead of using memcpy(). BugLink: http://blog.infosectcbr.com.au/2018/09/linux-kernel-infoleaks.html Cc: Jann Horn Signed-off-by: Willy Tarreau Signed-off-by: David S. Miller --- drivers/net/appletalk/ipddp.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/appletalk/ipddp.c b/drivers/net/appletalk/ipddp.c index 9375cef22420..3d27616d9c85 100644 --- a/drivers/net/appletalk/ipddp.c +++ b/drivers/net/appletalk/ipddp.c @@ -283,8 +283,12 @@ static int ipddp_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) case SIOCFINDIPDDPRT: spin_lock_bh(&ipddp_route_lock); rp = __ipddp_find_route(&rcp); - if (rp) - memcpy(&rcp2, rp, sizeof(rcp2)); + if (rp) { + memset(&rcp2, 0, sizeof(rcp2)); + rcp2.ip = rp->ip; + rcp2.at = rp->at; + rcp2.flags = rp->flags; + } spin_unlock_bh(&ipddp_route_lock); if (rp) { From 56a49d7048703f5ffdb84d3a0ee034108fba6850 Mon Sep 17 00:00:00 2001 From: Roopa Prabhu Date: Wed, 12 Sep 2018 13:21:48 -0700 Subject: [PATCH 0957/1762] net: rtnl_configure_link: fix dev flags changes arg to __dev_notify_flags This fix addresses https://bugzilla.kernel.org/show_bug.cgi?id=201071 Commit 5025f7f7d506 wrongly relied on __dev_change_flags to notify users of dev flag changes in the case when dev->rtnl_link_state = RTNL_LINK_INITIALIZED. Fix it by indicating flag changes explicitly to __dev_notify_flags. Fixes: 5025f7f7d506 ("rtnetlink: add rtnl_link_state check in rtnl_configure_link") Reported-By: Liam mcbirnie Signed-off-by: Roopa Prabhu Signed-off-by: David S. Miller --- net/core/rtnetlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 60c928894a78..63ce2283a456 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -2810,7 +2810,7 @@ int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm) } if (dev->rtnl_link_state == RTNL_LINK_INITIALIZED) { - __dev_notify_flags(dev, old_flags, 0U); + __dev_notify_flags(dev, old_flags, (old_flags ^ dev->flags)); } else { dev->rtnl_link_state = RTNL_LINK_INITIALIZED; __dev_notify_flags(dev, old_flags, ~0U); From f0e0d04413fcce9bc76388839099aee93cd0d33b Mon Sep 17 00:00:00 2001 From: Vasily Khoruzhick Date: Thu, 13 Sep 2018 11:12:03 -0700 Subject: [PATCH 0958/1762] neighbour: confirm neigh entries when ARP packet is received Update 'confirmed' timestamp when ARP packet is received. It shouldn't affect locktime logic and anyway entry can be confirmed by any higher-layer protocol. Thus it makes sense to confirm it when ARP packet is received. Fixes: 77d7123342dc ("neighbour: update neigh timestamps iff update is effective") Signed-off-by: Vasily Khoruzhick Signed-off-by: David S. Miller --- net/core/neighbour.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/net/core/neighbour.c b/net/core/neighbour.c index aa19d86937af..91592fceeaad 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -1180,6 +1180,12 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new, lladdr = neigh->ha; } + /* Update confirmed timestamp for neighbour entry after we + * received ARP packet even if it doesn't change IP to MAC binding. + */ + if (new & NUD_CONNECTED) + neigh->confirmed = jiffies; + /* If entry was valid and address is not changed, do not change entry state, if new one is STALE. */ @@ -1201,15 +1207,12 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new, } } - /* Update timestamps only once we know we will make a change to the + /* Update timestamp only once we know we will make a change to the * neighbour entry. Otherwise we risk to move the locktime window with * noop updates and ignore relevant ARP updates. */ - if (new != old || lladdr != neigh->ha) { - if (new & NUD_CONNECTED) - neigh->confirmed = jiffies; + if (new != old || lladdr != neigh->ha) neigh->updated = jiffies; - } if (new != old) { neigh_del_timer(neigh); From 7cba09c6d5bc73ebbd25a353742d9ddb7a713b95 Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Wed, 12 Sep 2018 17:44:41 +0200 Subject: [PATCH 0959/1762] tls: don't copy the key out of tls12_crypto_info_aes_gcm_128 There's no need to copy the key to an on-stack buffer before calling crypto_aead_setkey(). Fixes: 3c4d7559159b ("tls: kernel TLS support") Signed-off-by: Sabrina Dubroca Signed-off-by: David S. Miller --- net/tls/tls_sw.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index e28a6ff25d96..f29b7c49cbf2 100644 --- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -1136,7 +1136,6 @@ void tls_sw_free_resources_rx(struct sock *sk) int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx) { - char keyval[TLS_CIPHER_AES_GCM_128_KEY_SIZE]; struct tls_crypto_info *crypto_info; struct tls12_crypto_info_aes_gcm_128 *gcm_128_info; struct tls_sw_context_tx *sw_ctx_tx = NULL; @@ -1265,9 +1264,7 @@ int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx) ctx->push_pending_record = tls_sw_push_pending_record; - memcpy(keyval, gcm_128_info->key, TLS_CIPHER_AES_GCM_128_KEY_SIZE); - - rc = crypto_aead_setkey(*aead, keyval, + rc = crypto_aead_setkey(*aead, gcm_128_info->key, TLS_CIPHER_AES_GCM_128_KEY_SIZE); if (rc) goto free_aead; From 86029d10af18381814881d6cce2dd6872163b59f Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Wed, 12 Sep 2018 17:44:42 +0200 Subject: [PATCH 0960/1762] tls: zero the crypto information from tls_context before freeing This contains key material in crypto_send_aes_gcm_128 and crypto_recv_aes_gcm_128. Introduce union tls_crypto_context, and replace the two identical unions directly embedded in struct tls_context with it. We can then use this union to clean up the memory in the new tls_ctx_free() function. Fixes: 3c4d7559159b ("tls: kernel TLS support") Signed-off-by: Sabrina Dubroca Signed-off-by: David S. Miller --- include/net/tls.h | 19 +++++++++---------- net/tls/tls_device.c | 6 +++--- net/tls/tls_device_fallback.c | 2 +- net/tls/tls_main.c | 20 +++++++++++++++----- net/tls/tls_sw.c | 8 ++++---- 5 files changed, 32 insertions(+), 23 deletions(-) diff --git a/include/net/tls.h b/include/net/tls.h index d5c683e8bb22..0a769cf2f5f3 100644 --- a/include/net/tls.h +++ b/include/net/tls.h @@ -171,15 +171,14 @@ struct cipher_context { char *rec_seq; }; +union tls_crypto_context { + struct tls_crypto_info info; + struct tls12_crypto_info_aes_gcm_128 aes_gcm_128; +}; + struct tls_context { - union { - struct tls_crypto_info crypto_send; - struct tls12_crypto_info_aes_gcm_128 crypto_send_aes_gcm_128; - }; - union { - struct tls_crypto_info crypto_recv; - struct tls12_crypto_info_aes_gcm_128 crypto_recv_aes_gcm_128; - }; + union tls_crypto_context crypto_send; + union tls_crypto_context crypto_recv; struct list_head list; struct net_device *netdev; @@ -367,8 +366,8 @@ static inline void tls_fill_prepend(struct tls_context *ctx, * size KTLS_DTLS_HEADER_SIZE + KTLS_DTLS_NONCE_EXPLICIT_SIZE */ buf[0] = record_type; - buf[1] = TLS_VERSION_MINOR(ctx->crypto_send.version); - buf[2] = TLS_VERSION_MAJOR(ctx->crypto_send.version); + buf[1] = TLS_VERSION_MINOR(ctx->crypto_send.info.version); + buf[2] = TLS_VERSION_MAJOR(ctx->crypto_send.info.version); /* we can use IV for nonce explicit according to spec */ buf[3] = pkt_len >> 8; buf[4] = pkt_len & 0xFF; diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c index 292742e50bfa..961b07d4d41c 100644 --- a/net/tls/tls_device.c +++ b/net/tls/tls_device.c @@ -686,7 +686,7 @@ int tls_set_device_offload(struct sock *sk, struct tls_context *ctx) goto free_marker_record; } - crypto_info = &ctx->crypto_send; + crypto_info = &ctx->crypto_send.info; switch (crypto_info->cipher_type) { case TLS_CIPHER_AES_GCM_128: nonce_size = TLS_CIPHER_AES_GCM_128_IV_SIZE; @@ -780,7 +780,7 @@ int tls_set_device_offload(struct sock *sk, struct tls_context *ctx) ctx->priv_ctx_tx = offload_ctx; rc = netdev->tlsdev_ops->tls_dev_add(netdev, sk, TLS_OFFLOAD_CTX_DIR_TX, - &ctx->crypto_send, + &ctx->crypto_send.info, tcp_sk(sk)->write_seq); if (rc) goto release_netdev; @@ -862,7 +862,7 @@ int tls_set_device_offload_rx(struct sock *sk, struct tls_context *ctx) goto release_ctx; rc = netdev->tlsdev_ops->tls_dev_add(netdev, sk, TLS_OFFLOAD_CTX_DIR_RX, - &ctx->crypto_recv, + &ctx->crypto_recv.info, tcp_sk(sk)->copied_seq); if (rc) { pr_err_ratelimited("%s: The netdev has refused to offload this socket\n", diff --git a/net/tls/tls_device_fallback.c b/net/tls/tls_device_fallback.c index 6102169239d1..450a6dbc5a88 100644 --- a/net/tls/tls_device_fallback.c +++ b/net/tls/tls_device_fallback.c @@ -320,7 +320,7 @@ static struct sk_buff *tls_enc_skb(struct tls_context *tls_ctx, goto free_req; iv = buf; - memcpy(iv, tls_ctx->crypto_send_aes_gcm_128.salt, + memcpy(iv, tls_ctx->crypto_send.aes_gcm_128.salt, TLS_CIPHER_AES_GCM_128_SALT_SIZE); aad = buf + TLS_CIPHER_AES_GCM_128_SALT_SIZE + TLS_CIPHER_AES_GCM_128_IV_SIZE; diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index 180b6640e531..737b3865be1b 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -241,6 +241,16 @@ static void tls_write_space(struct sock *sk) ctx->sk_write_space(sk); } +static void tls_ctx_free(struct tls_context *ctx) +{ + if (!ctx) + return; + + memzero_explicit(&ctx->crypto_send, sizeof(ctx->crypto_send)); + memzero_explicit(&ctx->crypto_recv, sizeof(ctx->crypto_recv)); + kfree(ctx); +} + static void tls_sk_proto_close(struct sock *sk, long timeout) { struct tls_context *ctx = tls_get_ctx(sk); @@ -294,7 +304,7 @@ static void tls_sk_proto_close(struct sock *sk, long timeout) #else { #endif - kfree(ctx); + tls_ctx_free(ctx); ctx = NULL; } @@ -305,7 +315,7 @@ skip_tx_cleanup: * for sk->sk_prot->unhash [tls_hw_unhash] */ if (free_ctx) - kfree(ctx); + tls_ctx_free(ctx); } static int do_tls_getsockopt_tx(struct sock *sk, char __user *optval, @@ -330,7 +340,7 @@ static int do_tls_getsockopt_tx(struct sock *sk, char __user *optval, } /* get user crypto info */ - crypto_info = &ctx->crypto_send; + crypto_info = &ctx->crypto_send.info; if (!TLS_CRYPTO_INFO_READY(crypto_info)) { rc = -EBUSY; @@ -417,9 +427,9 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval, } if (tx) - crypto_info = &ctx->crypto_send; + crypto_info = &ctx->crypto_send.info; else - crypto_info = &ctx->crypto_recv; + crypto_info = &ctx->crypto_recv.info; /* Currently we don't support set crypto info more than one time */ if (TLS_CRYPTO_INFO_READY(crypto_info)) { diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index f29b7c49cbf2..9e918489f4fb 100644 --- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -1055,8 +1055,8 @@ static int tls_read_size(struct strparser *strp, struct sk_buff *skb) goto read_failure; } - if (header[1] != TLS_VERSION_MINOR(tls_ctx->crypto_recv.version) || - header[2] != TLS_VERSION_MAJOR(tls_ctx->crypto_recv.version)) { + if (header[1] != TLS_VERSION_MINOR(tls_ctx->crypto_recv.info.version) || + header[2] != TLS_VERSION_MAJOR(tls_ctx->crypto_recv.info.version)) { ret = -EINVAL; goto read_failure; } @@ -1180,12 +1180,12 @@ int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx) if (tx) { crypto_init_wait(&sw_ctx_tx->async_wait); - crypto_info = &ctx->crypto_send; + crypto_info = &ctx->crypto_send.info; cctx = &ctx->tx; aead = &sw_ctx_tx->aead_send; } else { crypto_init_wait(&sw_ctx_rx->async_wait); - crypto_info = &ctx->crypto_recv; + crypto_info = &ctx->crypto_recv.info; cctx = &ctx->rx; aead = &sw_ctx_rx->aead_recv; } From c844eb46b7d43c2cf760169df5ae1d5b033af338 Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Wed, 12 Sep 2018 17:44:43 +0200 Subject: [PATCH 0961/1762] tls: clear key material from kernel memory when do_tls_setsockopt_conf fails Fixes: 3c4d7559159b ("tls: kernel TLS support") Signed-off-by: Sabrina Dubroca Signed-off-by: Sabrina Dubroca Signed-off-by: David S. Miller --- net/tls/tls_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index 737b3865be1b..523622dc74f8 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -509,7 +509,7 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval, goto out; err_crypto_info: - memset(crypto_info, 0, sizeof(*crypto_info)); + memzero_explicit(crypto_info, sizeof(union tls_crypto_context)); out: return rc; } From c56cae23c6b167acc68043c683c4573b80cbcc2c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= Date: Thu, 13 Sep 2018 16:43:07 +0200 Subject: [PATCH 0962/1762] gso_segment: Reset skb->mac_len after modifying network header MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When splitting a GSO segment that consists of encapsulated packets, the skb->mac_len of the segments can end up being set wrong, causing packet drops in particular when using act_mirred and ifb interfaces in combination with a qdisc that splits GSO packets. This happens because at the time skb_segment() is called, network_header will point to the inner header, throwing off the calculation in skb_reset_mac_len(). The network_header is subsequently adjust by the outer IP gso_segment handlers, but they don't set the mac_len. Fix this by adding skb_reset_mac_len() calls to both the IPv4 and IPv6 gso_segment handlers, after they modify the network_header. Many thanks to Eric Dumazet for his help in identifying the cause of the bug. Acked-by: Dave Taht Reviewed-by: Eric Dumazet Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: David S. Miller --- net/ipv4/af_inet.c | 1 + net/ipv6/ip6_offload.c | 1 + 2 files changed, 2 insertions(+) diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 20fda8fb8ffd..1fbe2f815474 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1377,6 +1377,7 @@ struct sk_buff *inet_gso_segment(struct sk_buff *skb, if (encap) skb_reset_inner_headers(skb); skb->network_header = (u8 *)iph - skb->head; + skb_reset_mac_len(skb); } while ((skb = skb->next)); out: diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c index 37ff4805b20c..c7e495f12011 100644 --- a/net/ipv6/ip6_offload.c +++ b/net/ipv6/ip6_offload.c @@ -115,6 +115,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, payload_len = skb->len - nhoff - sizeof(*ipv6h); ipv6h->payload_len = htons(payload_len); skb->network_header = (u8 *)ipv6h - skb->head; + skb_reset_mac_len(skb); if (udpfrag) { int err = ip6_find_1stfragopt(skb, &prevhdr); From 1194c4154662ac60312c164e9eaab0f8dd0dd36f Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 13 Sep 2018 12:16:36 -0700 Subject: [PATCH 0963/1762] MAINTAINERS: Make Dennis the percpu tree maintainer Dennis rewrote a significant portion of the percpu allocator and has shown that he can respond in a timely and helpful manner when issues are reported against percpu allocator. Let's make Dennis the percpu tree maintainer. Signed-off-by: Tejun Heo Cc: Dennis Zhou Cc: Christoph Lameter --- MAINTAINERS | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 4130acc2e152..bb65f0c1861c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11360,10 +11360,10 @@ S: Maintained F: drivers/platform/x86/peaq-wmi.c PER-CPU MEMORY ALLOCATOR +M: Dennis Zhou M: Tejun Heo M: Christoph Lameter -M: Dennis Zhou -T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu.git S: Maintained F: include/linux/percpu*.h F: mm/percpu*.c From 615f64458ad890ef94abc879a66d8b27236e733a Mon Sep 17 00:00:00 2001 From: Alexey Brodkin Date: Thu, 13 Sep 2018 23:24:28 +0300 Subject: [PATCH 0964/1762] ARC: build: Get rid of toolchain check This check is very naive: we simply test if GCC invoked without "-mcpu=XXX" has ARC700 define set. In that case we think that GCC was built with "--with-cpu=arc700" and has libgcc built for ARC700. Otherwise if ARC700 is not defined we think that everythng was built for ARCv2. But in reality our life is much more interesting. 1. Regardless of GCC configuration (i.e. what we pass in "--with-cpu" it may generate code for any ARC core). 2. libgcc might be built with explicitly specified "--mcpu=YYY" That's exactly what happens in case of multilibbed toolchains: - GCC is configured with default settings - All the libs built for many different CPU flavors I.e. that check gets in the way of usage of multilibbed toolchains. And even non-multilibbed toolchains are affected. OpenEmbedded also builds GCC without "--with-cpu" because each and every target component later is compiled with explicitly set "-mcpu=ZZZ". Acked-by: Rob Herring Signed-off-by: Alexey Brodkin Signed-off-by: Vineet Gupta --- arch/arc/Makefile | 14 -------------- 1 file changed, 14 deletions(-) diff --git a/arch/arc/Makefile b/arch/arc/Makefile index dcc0f0cb0ca5..0dbce0235617 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -20,20 +20,6 @@ cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__ cflags-$(CONFIG_ISA_ARCOMPACT) += -mA7 cflags-$(CONFIG_ISA_ARCV2) += -mcpu=hs38 -is_700 = $(shell $(CC) -dM -E - < /dev/null | grep -q "ARC700" && echo 1 || echo 0) - -ifdef CONFIG_ISA_ARCOMPACT -ifeq ($(is_700), 0) - $(error Toolchain not configured for ARCompact builds) -endif -endif - -ifdef CONFIG_ISA_ARCV2 -ifeq ($(is_700), 1) - $(error Toolchain not configured for ARCv2 builds) -endif -endif - ifdef CONFIG_ARC_CURR_IN_REG # For a global register defintion, make sure it gets passed to every file # We had a customer reported bug where some code built in kernel was NOT using From 1cebf8f143c21eb422cd0f4e27ab2ae366eb4d04 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 13 Sep 2018 14:40:55 +0200 Subject: [PATCH 0965/1762] socket: fix struct ifreq size in compat ioctl As reported by Reobert O'Callahan, since Viro's commit to kill dev_ifsioc() we attempt to copy too much data in compat mode, which may lead to EFAULT when the 32-bit version of struct ifreq sits at/near the end of a page boundary, and the next page isn't mapped. Fix this by passing the approprate compat/non-compat size to copy and using that, as before the dev_ifsioc() removal. This works because only the embedded "struct ifmap" has different size, and this is only used in SIOCGIFMAP/SIOCSIFMAP which has a different handler. All other parts of the union are naturally compatible. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=199469. Fixes: bf4405737f9f ("kill dev_ifsioc()") Reported-by: Robert O'Callahan Signed-off-by: Johannes Berg Signed-off-by: David S. Miller --- net/socket.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/net/socket.c b/net/socket.c index e6945e318f02..01f3f8f32d6f 100644 --- a/net/socket.c +++ b/net/socket.c @@ -941,7 +941,8 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *)) EXPORT_SYMBOL(dlci_ioctl_set); static long sock_do_ioctl(struct net *net, struct socket *sock, - unsigned int cmd, unsigned long arg) + unsigned int cmd, unsigned long arg, + unsigned int ifreq_size) { int err; void __user *argp = (void __user *)arg; @@ -967,11 +968,11 @@ static long sock_do_ioctl(struct net *net, struct socket *sock, } else { struct ifreq ifr; bool need_copyout; - if (copy_from_user(&ifr, argp, sizeof(struct ifreq))) + if (copy_from_user(&ifr, argp, ifreq_size)) return -EFAULT; err = dev_ioctl(net, cmd, &ifr, &need_copyout); if (!err && need_copyout) - if (copy_to_user(argp, &ifr, sizeof(struct ifreq))) + if (copy_to_user(argp, &ifr, ifreq_size)) return -EFAULT; } return err; @@ -1070,7 +1071,8 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg) err = open_related_ns(&net->ns, get_net_ns); break; default: - err = sock_do_ioctl(net, sock, cmd, arg); + err = sock_do_ioctl(net, sock, cmd, arg, + sizeof(struct ifreq)); break; } return err; @@ -2750,7 +2752,8 @@ static int do_siocgstamp(struct net *net, struct socket *sock, int err; set_fs(KERNEL_DS); - err = sock_do_ioctl(net, sock, cmd, (unsigned long)&ktv); + err = sock_do_ioctl(net, sock, cmd, (unsigned long)&ktv, + sizeof(struct compat_ifreq)); set_fs(old_fs); if (!err) err = compat_put_timeval(&ktv, up); @@ -2766,7 +2769,8 @@ static int do_siocgstampns(struct net *net, struct socket *sock, int err; set_fs(KERNEL_DS); - err = sock_do_ioctl(net, sock, cmd, (unsigned long)&kts); + err = sock_do_ioctl(net, sock, cmd, (unsigned long)&kts, + sizeof(struct compat_ifreq)); set_fs(old_fs); if (!err) err = compat_put_timespec(&kts, up); @@ -3072,7 +3076,8 @@ static int routing_ioctl(struct net *net, struct socket *sock, } set_fs(KERNEL_DS); - ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r); + ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r, + sizeof(struct compat_ifreq)); set_fs(old_fs); out: @@ -3185,7 +3190,8 @@ static int compat_sock_ioctl_trans(struct file *file, struct socket *sock, case SIOCBONDSETHWADDR: case SIOCBONDCHANGEACTIVE: case SIOCGIFNAME: - return sock_do_ioctl(net, sock, cmd, arg); + return sock_do_ioctl(net, sock, cmd, arg, + sizeof(struct compat_ifreq)); } return -ENOIOCTLCMD; From 7a9cdebdcc17e426fb5287e4a82db1dfe86339b2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 12 Sep 2018 23:57:48 -1000 Subject: [PATCH 0966/1762] mm: get rid of vmacache_flush_all() entirely Jann Horn points out that the vmacache_flush_all() function is not only potentially expensive, it's buggy too. It also happens to be entirely unnecessary, because the sequence number overflow case can be avoided by simply making the sequence number be 64-bit. That doesn't even grow the data structures in question, because the other adjacent fields are already 64-bit. So simplify the whole thing by just making the sequence number overflow case go away entirely, which gets rid of all the complications and makes the code faster too. Win-win. [ Oleg Nesterov points out that the VMACACHE_FULL_FLUSHES statistics also just goes away entirely with this ] Reported-by: Jann Horn Suggested-by: Will Deacon Acked-by: Davidlohr Bueso Cc: Oleg Nesterov Cc: stable@kernel.org Signed-off-by: Linus Torvalds --- include/linux/mm_types.h | 2 +- include/linux/mm_types_task.h | 2 +- include/linux/vm_event_item.h | 1 - include/linux/vmacache.h | 5 ----- mm/debug.c | 4 ++-- mm/vmacache.c | 38 ----------------------------------- 6 files changed, 4 insertions(+), 48 deletions(-) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index cd2bc939efd0..5ed8f6292a53 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -341,7 +341,7 @@ struct mm_struct { struct { struct vm_area_struct *mmap; /* list of VMAs */ struct rb_root mm_rb; - u32 vmacache_seqnum; /* per-thread vmacache */ + u64 vmacache_seqnum; /* per-thread vmacache */ #ifdef CONFIG_MMU unsigned long (*get_unmapped_area) (struct file *filp, unsigned long addr, unsigned long len, diff --git a/include/linux/mm_types_task.h b/include/linux/mm_types_task.h index 5fe87687664c..d7016dcb245e 100644 --- a/include/linux/mm_types_task.h +++ b/include/linux/mm_types_task.h @@ -32,7 +32,7 @@ #define VMACACHE_MASK (VMACACHE_SIZE - 1) struct vmacache { - u32 seqnum; + u64 seqnum; struct vm_area_struct *vmas[VMACACHE_SIZE]; }; diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h index 5c7f010676a7..47a3441cf4c4 100644 --- a/include/linux/vm_event_item.h +++ b/include/linux/vm_event_item.h @@ -105,7 +105,6 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, #ifdef CONFIG_DEBUG_VM_VMACACHE VMACACHE_FIND_CALLS, VMACACHE_FIND_HITS, - VMACACHE_FULL_FLUSHES, #endif #ifdef CONFIG_SWAP SWAP_RA, diff --git a/include/linux/vmacache.h b/include/linux/vmacache.h index 3e9a963edd6a..6fce268a4588 100644 --- a/include/linux/vmacache.h +++ b/include/linux/vmacache.h @@ -10,7 +10,6 @@ static inline void vmacache_flush(struct task_struct *tsk) memset(tsk->vmacache.vmas, 0, sizeof(tsk->vmacache.vmas)); } -extern void vmacache_flush_all(struct mm_struct *mm); extern void vmacache_update(unsigned long addr, struct vm_area_struct *newvma); extern struct vm_area_struct *vmacache_find(struct mm_struct *mm, unsigned long addr); @@ -24,10 +23,6 @@ extern struct vm_area_struct *vmacache_find_exact(struct mm_struct *mm, static inline void vmacache_invalidate(struct mm_struct *mm) { mm->vmacache_seqnum++; - - /* deal with overflows */ - if (unlikely(mm->vmacache_seqnum == 0)) - vmacache_flush_all(mm); } #endif /* __LINUX_VMACACHE_H */ diff --git a/mm/debug.c b/mm/debug.c index 38c926520c97..bd10aad8539a 100644 --- a/mm/debug.c +++ b/mm/debug.c @@ -114,7 +114,7 @@ EXPORT_SYMBOL(dump_vma); void dump_mm(const struct mm_struct *mm) { - pr_emerg("mm %px mmap %px seqnum %d task_size %lu\n" + pr_emerg("mm %px mmap %px seqnum %llu task_size %lu\n" #ifdef CONFIG_MMU "get_unmapped_area %px\n" #endif @@ -142,7 +142,7 @@ void dump_mm(const struct mm_struct *mm) "tlb_flush_pending %d\n" "def_flags: %#lx(%pGv)\n", - mm, mm->mmap, mm->vmacache_seqnum, mm->task_size, + mm, mm->mmap, (long long) mm->vmacache_seqnum, mm->task_size, #ifdef CONFIG_MMU mm->get_unmapped_area, #endif diff --git a/mm/vmacache.c b/mm/vmacache.c index ea517bef7dc5..cdc32a3b02fa 100644 --- a/mm/vmacache.c +++ b/mm/vmacache.c @@ -19,44 +19,6 @@ #endif #define VMACACHE_HASH(addr) ((addr >> VMACACHE_SHIFT) & VMACACHE_MASK) -/* - * Flush vma caches for threads that share a given mm. - * - * The operation is safe because the caller holds the mmap_sem - * exclusively and other threads accessing the vma cache will - * have mmap_sem held at least for read, so no extra locking - * is required to maintain the vma cache. - */ -void vmacache_flush_all(struct mm_struct *mm) -{ - struct task_struct *g, *p; - - count_vm_vmacache_event(VMACACHE_FULL_FLUSHES); - - /* - * Single threaded tasks need not iterate the entire - * list of process. We can avoid the flushing as well - * since the mm's seqnum was increased and don't have - * to worry about other threads' seqnum. Current's - * flush will occur upon the next lookup. - */ - if (atomic_read(&mm->mm_users) == 1) - return; - - rcu_read_lock(); - for_each_process_thread(g, p) { - /* - * Only flush the vmacache pointers as the - * mm seqnum is already set and curr's will - * be set upon invalidation when the next - * lookup is done. - */ - if (mm == p->mm) - vmacache_flush(p); - } - rcu_read_unlock(); -} - /* * This task may be accessing a foreign mm via (for example) * get_user_pages()->find_vma(). The vmacache is task-local and this From 24568b47d48ec8c906fd0f589489a08b17e1edca Mon Sep 17 00:00:00 2001 From: Ondrej Mosnacek Date: Wed, 5 Sep 2018 09:26:41 +0200 Subject: [PATCH 0967/1762] crypto: x86/aegis,morus - Do not require OSXSAVE for SSE2 It turns out OSXSAVE needs to be checked only for AVX, not for SSE. Without this patch the affected modules refuse to load on CPUs with SSE2 but without AVX support. Fixes: 877ccce7cbe8 ("crypto: x86/aegis,morus - Fix and simplify CPUID checks") Cc: # 4.18 Reported-by: Zdenek Kaspar Signed-off-by: Ondrej Mosnacek Signed-off-by: Herbert Xu --- arch/x86/crypto/aegis128-aesni-glue.c | 1 - arch/x86/crypto/aegis128l-aesni-glue.c | 1 - arch/x86/crypto/aegis256-aesni-glue.c | 1 - arch/x86/crypto/morus1280-sse2-glue.c | 1 - arch/x86/crypto/morus640-sse2-glue.c | 1 - 5 files changed, 5 deletions(-) diff --git a/arch/x86/crypto/aegis128-aesni-glue.c b/arch/x86/crypto/aegis128-aesni-glue.c index acd11b3bf639..2a356b948720 100644 --- a/arch/x86/crypto/aegis128-aesni-glue.c +++ b/arch/x86/crypto/aegis128-aesni-glue.c @@ -379,7 +379,6 @@ static int __init crypto_aegis128_aesni_module_init(void) { if (!boot_cpu_has(X86_FEATURE_XMM2) || !boot_cpu_has(X86_FEATURE_AES) || - !boot_cpu_has(X86_FEATURE_OSXSAVE) || !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) return -ENODEV; diff --git a/arch/x86/crypto/aegis128l-aesni-glue.c b/arch/x86/crypto/aegis128l-aesni-glue.c index 2071c3d1ae07..dbe8bb980da1 100644 --- a/arch/x86/crypto/aegis128l-aesni-glue.c +++ b/arch/x86/crypto/aegis128l-aesni-glue.c @@ -379,7 +379,6 @@ static int __init crypto_aegis128l_aesni_module_init(void) { if (!boot_cpu_has(X86_FEATURE_XMM2) || !boot_cpu_has(X86_FEATURE_AES) || - !boot_cpu_has(X86_FEATURE_OSXSAVE) || !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) return -ENODEV; diff --git a/arch/x86/crypto/aegis256-aesni-glue.c b/arch/x86/crypto/aegis256-aesni-glue.c index b5f2a8fd5a71..8bebda2de92f 100644 --- a/arch/x86/crypto/aegis256-aesni-glue.c +++ b/arch/x86/crypto/aegis256-aesni-glue.c @@ -379,7 +379,6 @@ static int __init crypto_aegis256_aesni_module_init(void) { if (!boot_cpu_has(X86_FEATURE_XMM2) || !boot_cpu_has(X86_FEATURE_AES) || - !boot_cpu_has(X86_FEATURE_OSXSAVE) || !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) return -ENODEV; diff --git a/arch/x86/crypto/morus1280-sse2-glue.c b/arch/x86/crypto/morus1280-sse2-glue.c index 95cf857d2cbb..f40244eaf14d 100644 --- a/arch/x86/crypto/morus1280-sse2-glue.c +++ b/arch/x86/crypto/morus1280-sse2-glue.c @@ -40,7 +40,6 @@ MORUS1280_DECLARE_ALGS(sse2, "morus1280-sse2", 350); static int __init crypto_morus1280_sse2_module_init(void) { if (!boot_cpu_has(X86_FEATURE_XMM2) || - !boot_cpu_has(X86_FEATURE_OSXSAVE) || !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) return -ENODEV; diff --git a/arch/x86/crypto/morus640-sse2-glue.c b/arch/x86/crypto/morus640-sse2-glue.c index 615fb7bc9a32..9afaf8f8565a 100644 --- a/arch/x86/crypto/morus640-sse2-glue.c +++ b/arch/x86/crypto/morus640-sse2-glue.c @@ -40,7 +40,6 @@ MORUS640_DECLARE_ALGS(sse2, "morus640-sse2", 400); static int __init crypto_morus640_sse2_module_init(void) { if (!boot_cpu_has(X86_FEATURE_XMM2) || - !boot_cpu_has(X86_FEATURE_OSXSAVE) || !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) return -ENODEV; From 807588ac92018bde88a1958f546438e840eb0158 Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Wed, 12 Sep 2018 15:07:05 +0200 Subject: [PATCH 0968/1762] HID: i2c-hid: disable runtime PM operations on hantick touchpad MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This hantick HTIX5288 touchpad can quickly fall in a wrong state if there are too many open/close operations. This will either make it stop reporting any input, or will shift all the input reads by a few bytes, making it impossible to decode. Here, we never release the probed touchpad runtime pm while the driver is loaded, which should disable all runtime pm suspend/resumes. This fast repetition of sleep/wakeup is also more likely to happen when using runtime PM, which is why the quirk is done there, and not for all power downs, which would include suspend or module removal. Signed-off-by: Anisse Astier Cc: stable@vger.kernel.org Acked-by: Benjamin Tissoires Reviewed-by: Hans de Goede Tested-by: Philip Müller Signed-off-by: Jiri Kosina --- drivers/hid/i2c-hid/i2c-hid.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index f3076659361a..a8610f5bf6f5 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -48,6 +48,7 @@ #define I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV BIT(0) #define I2C_HID_QUIRK_NO_IRQ_AFTER_RESET BIT(1) #define I2C_HID_QUIRK_RESEND_REPORT_DESCR BIT(2) +#define I2C_HID_QUIRK_NO_RUNTIME_PM BIT(3) /* flags */ #define I2C_HID_STARTED 0 @@ -169,7 +170,8 @@ static const struct i2c_hid_quirks { { USB_VENDOR_ID_WEIDA, USB_DEVICE_ID_WEIDA_8755, I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV }, { I2C_VENDOR_ID_HANTICK, I2C_PRODUCT_ID_HANTICK_5288, - I2C_HID_QUIRK_NO_IRQ_AFTER_RESET }, + I2C_HID_QUIRK_NO_IRQ_AFTER_RESET | + I2C_HID_QUIRK_NO_RUNTIME_PM }, { USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS10FB_TOUCH, I2C_HID_QUIRK_RESEND_REPORT_DESCR }, { 0, 0 } @@ -1105,7 +1107,9 @@ static int i2c_hid_probe(struct i2c_client *client, goto err_mem_free; } - pm_runtime_put(&client->dev); + if (!(ihid->quirks & I2C_HID_QUIRK_NO_RUNTIME_PM)) + pm_runtime_put(&client->dev); + return 0; err_mem_free: @@ -1130,7 +1134,8 @@ static int i2c_hid_remove(struct i2c_client *client) struct i2c_hid *ihid = i2c_get_clientdata(client); struct hid_device *hid; - pm_runtime_get_sync(&client->dev); + if (!(ihid->quirks & I2C_HID_QUIRK_NO_RUNTIME_PM)) + pm_runtime_get_sync(&client->dev); pm_runtime_disable(&client->dev); pm_runtime_set_suspended(&client->dev); pm_runtime_put_noidle(&client->dev); From 36cae568404a298a19a6e8a3f18641075d4cab04 Mon Sep 17 00:00:00 2001 From: Kristian Evensen Date: Thu, 13 Sep 2018 11:21:49 +0200 Subject: [PATCH 0969/1762] USB: serial: option: improve Quectel EP06 detection The Quectel EP06 (and EM06/EG06) LTE modem supports updating the USB configuration, without the VID/PID or configuration number changing. When the configuration is updated and interfaces are added/removed, the interface numbers are updated. This causes our current code for matching EP06 not to work as intended, as the assumption about reserved interfaces no longer holds. If for example the diagnostic (first) interface is removed, option will (try to) bind to the QMI interface. This patch improves EP06 detection by replacing the current match with two matches, and those matches check class, subclass and protocol as well as VID and PID. The diag interface exports class, subclass and protocol as 0xff. For the other serial interfaces, class is 0xff and subclass and protocol are both 0x0. The modem can export the following devices and always in this order: diag, nmea, at, ppp. qmi and adb. This means that diag can only ever be interface 0, and interface numbers 1-5 should be marked as reserved. The three other serial devices can have interface numbers 0-3, but I have not marked any interfaces as reserved. The reason is that the serial devices are the only interfaces exported by the device where subclass and protocol is 0x0. QMI exports the same class, subclass and protocol values as the diag interface. However, the two interfaces have different number of endpoints, QMI has three and diag two. I have added a check for number of interfaces if VID/PID matches the EP06, and we ignore the device if number of interfaces equals three (and subclass is set). Signed-off-by: Kristian Evensen Acked-by: Dan Williams [ johan: drop uneeded RSVD(5) for ADB ] Cc: stable Signed-off-by: Johan Hovold --- drivers/usb/serial/option.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 0215b70c4efc..382feafbd127 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -1081,8 +1081,9 @@ static const struct usb_device_id option_ids[] = { .driver_info = RSVD(4) }, { USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96), .driver_info = RSVD(4) }, - { USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06), - .driver_info = RSVD(4) | RSVD(5) }, + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0xff, 0xff), + .driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) }, + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0, 0) }, { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) }, { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) }, { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6003), @@ -1985,6 +1986,7 @@ static int option_probe(struct usb_serial *serial, { struct usb_interface_descriptor *iface_desc = &serial->interface->cur_altsetting->desc; + struct usb_device_descriptor *dev_desc = &serial->dev->descriptor; unsigned long device_flags = id->driver_info; /* Never bind to the CD-Rom emulation interface */ @@ -1999,6 +2001,18 @@ static int option_probe(struct usb_serial *serial, if (device_flags & RSVD(iface_desc->bInterfaceNumber)) return -ENODEV; + /* + * Don't bind to the QMI device of the Quectel EP06/EG06/EM06. Class, + * subclass and protocol is 0xff for both the diagnostic port and the + * QMI interface, but the diagnostic port only has two endpoints (QMI + * has three). + */ + if (dev_desc->idVendor == cpu_to_le16(QUECTEL_VENDOR_ID) && + dev_desc->idProduct == cpu_to_le16(QUECTEL_PRODUCT_EP06) && + iface_desc->bInterfaceSubClass && iface_desc->bNumEndpoints == 3) { + return -ENODEV; + } + /* Store the device flags so we can use them during attach. */ usb_set_serial_data(serial, (void *)device_flags); From 35aecc02b5b621782111f64cbb032c7f6a90bb32 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 13 Sep 2018 11:21:50 +0200 Subject: [PATCH 0970/1762] USB: serial: option: add two-endpoints device-id flag Allow matching on interfaces having two endpoints by adding a new device-id flag. This allows for the handling of devices whose interface numbers can change (e.g. Quectel EP06) to be contained in the device-id table. Tested-by: Kristian Evensen Cc: stable Signed-off-by: Johan Hovold --- drivers/usb/serial/option.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 382feafbd127..e72ad9f81c73 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -561,6 +561,9 @@ static void option_instat_callback(struct urb *urb); /* Interface is reserved */ #define RSVD(ifnum) ((BIT(ifnum) & 0xff) << 0) +/* Interface must have two endpoints */ +#define NUMEP2 BIT(16) + static const struct usb_device_id option_ids[] = { { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) }, @@ -1082,7 +1085,7 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96), .driver_info = RSVD(4) }, { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0xff, 0xff), - .driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) }, + .driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) | NUMEP2 }, { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0, 0) }, { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) }, { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) }, @@ -1986,7 +1989,6 @@ static int option_probe(struct usb_serial *serial, { struct usb_interface_descriptor *iface_desc = &serial->interface->cur_altsetting->desc; - struct usb_device_descriptor *dev_desc = &serial->dev->descriptor; unsigned long device_flags = id->driver_info; /* Never bind to the CD-Rom emulation interface */ @@ -2002,16 +2004,11 @@ static int option_probe(struct usb_serial *serial, return -ENODEV; /* - * Don't bind to the QMI device of the Quectel EP06/EG06/EM06. Class, - * subclass and protocol is 0xff for both the diagnostic port and the - * QMI interface, but the diagnostic port only has two endpoints (QMI - * has three). + * Allow matching on bNumEndpoints for devices whose interface numbers + * can change (e.g. Quectel EP06). */ - if (dev_desc->idVendor == cpu_to_le16(QUECTEL_VENDOR_ID) && - dev_desc->idProduct == cpu_to_le16(QUECTEL_PRODUCT_EP06) && - iface_desc->bInterfaceSubClass && iface_desc->bNumEndpoints == 3) { + if (device_flags & NUMEP2 && iface_desc->bNumEndpoints != 2) return -ENODEV; - } /* Store the device flags so we can use them during attach. */ usb_set_serial_data(serial, (void *)device_flags); From 500dd232449e7c07500e713dc6970aa713f8e4f1 Mon Sep 17 00:00:00 2001 From: Andrew Murray Date: Thu, 13 Sep 2018 13:48:27 +0100 Subject: [PATCH 0971/1762] asm-generic: io: Fix ioport_map() for !CONFIG_GENERIC_IOMAP && CONFIG_INDIRECT_PIO The !CONFIG_GENERIC_IOMAP version of ioport_map uses MMIO_UPPER_LIMIT to prevent users from making I/O accesses outside the expected I/O range - however it erroneously treats MMIO_UPPER_LIMIT as a mask which is contradictory to its other users. The introduction of CONFIG_INDIRECT_PIO, which subtracts an arbitrary amount from IO_SPACE_LIMIT to form MMIO_UPPER_LIMIT, results in ioport_map mangling the given port rather than capping it. We address this by aligning more closely with the CONFIG_GENERIC_IOMAP implementation of ioport_map by using the comparison operator and returning NULL where the port exceeds MMIO_UPPER_LIMIT. Though note that we preserve the existing behavior of masking with IO_SPACE_LIMIT such that we don't break existing buggy drivers that somehow rely on this masking. Fixes: 5745392e0c2b ("PCI: Apply the new generic I/O management on PCI IO hosts") Reported-by: Will Deacon Reviewed-by: Arnd Bergmann Signed-off-by: Andrew Murray Signed-off-by: Will Deacon --- include/asm-generic/io.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index 66d1d45fa2e1..d356f802945a 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -1026,7 +1026,8 @@ static inline void __iomem *ioremap_wt(phys_addr_t offset, size_t size) #define ioport_map ioport_map static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) { - return PCI_IOBASE + (port & MMIO_UPPER_LIMIT); + port &= IO_SPACE_LIMIT; + return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; } #endif From 87dffe86d406bee8782cac2db035acb9a28620a7 Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Thu, 6 Sep 2018 13:26:08 +0200 Subject: [PATCH 0972/1762] xen/manage: don't complain about an empty value in control/sysrq node When guest receives a sysrq request from the host it acknowledges it by writing '\0' to control/sysrq xenstore node. This, however, make xenstore watch fire again but xenbus_scanf() fails to parse empty value with "%c" format string: sysrq: SysRq : Emergency Sync Emergency Sync complete xen:manage: Error -34 reading sysrq code in control/sysrq Ignore -ERANGE the same way we already ignore -ENOENT, empty value in control/sysrq is totally legal. Signed-off-by: Vitaly Kuznetsov Reviewed-by: Wei Liu Signed-off-by: Boris Ostrovsky --- drivers/xen/manage.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index c93d8ef8df34..5bb01a62f214 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -280,9 +280,11 @@ static void sysrq_handler(struct xenbus_watch *watch, const char *path, /* * The Xenstore watch fires directly after registering it and * after a suspend/resume cycle. So ENOENT is no error but - * might happen in those cases. + * might happen in those cases. ERANGE is observed when we get + * an empty value (''), this happens when we acknowledge the + * request by writing '\0' below. */ - if (err != -ENOENT) + if (err != -ENOENT && err != -ERANGE) pr_err("Error %d reading sysrq code in control/sysrq\n", err); xenbus_transaction_end(xbt, 1); From 197ecb3802c04499d8ff4f8cb28f6efa008067db Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?= Date: Fri, 7 Sep 2018 18:49:08 +0200 Subject: [PATCH 0973/1762] xen/balloon: add runtime control for scrubbing ballooned out pages MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Scrubbing pages on initial balloon down can take some time, especially in nested virtualization case (nested EPT is slow). When HVM/PVH guest is started with memory= significantly lower than maxmem=, all the extra pages will be scrubbed before returning to Xen. But since most of them weren't used at all at that point, Xen needs to populate them first (from populate-on-demand pool). In nested virt case (Xen inside KVM) this slows down the guest boot by 15-30s with just 1.5GB needed to be returned to Xen. Add runtime parameter to enable/disable it, to allow initially disabling scrubbing, then enable it back during boot (for example in initramfs). Such usage relies on assumption that a) most pages ballooned out during initial boot weren't used at all, and b) even if they were, very few secrets are in the guest at that time (before any serious userspace kicks in). Convert CONFIG_XEN_SCRUB_PAGES to CONFIG_XEN_SCRUB_PAGES_DEFAULT (also enabled by default), controlling default value for the new runtime switch. Signed-off-by: Marek Marczykowski-Górecki Reviewed-by: Juergen Gross Signed-off-by: Boris Ostrovsky --- .../ABI/stable/sysfs-devices-system-xen_memory | 9 +++++++++ Documentation/admin-guide/kernel-parameters.txt | 6 ++++++ drivers/xen/Kconfig | 10 +++++++--- drivers/xen/mem-reservation.c | 4 ++++ drivers/xen/xen-balloon.c | 3 +++ include/xen/mem-reservation.h | 7 ++++--- 6 files changed, 33 insertions(+), 6 deletions(-) diff --git a/Documentation/ABI/stable/sysfs-devices-system-xen_memory b/Documentation/ABI/stable/sysfs-devices-system-xen_memory index caa311d59ac1..6d83f95a8a8e 100644 --- a/Documentation/ABI/stable/sysfs-devices-system-xen_memory +++ b/Documentation/ABI/stable/sysfs-devices-system-xen_memory @@ -75,3 +75,12 @@ Contact: Konrad Rzeszutek Wilk Description: Amount (in KiB) of low (or normal) memory in the balloon. + +What: /sys/devices/system/xen_memory/xen_memory0/scrub_pages +Date: September 2018 +KernelVersion: 4.20 +Contact: xen-devel@lists.xenproject.org +Description: + Control scrubbing pages before returning them to Xen for others domains + use. Can be set with xen_scrub_pages cmdline + parameter. Default value controlled with CONFIG_XEN_SCRUB_PAGES_DEFAULT. diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 64a3bf54b974..92eb1f42240d 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -5000,6 +5000,12 @@ Disables the PV optimizations forcing the HVM guest to run as generic HVM guest with no PV drivers. + xen_scrub_pages= [XEN] + Boolean option to control scrubbing pages before giving them back + to Xen, for use by other domains. Can be also changed at runtime + with /sys/devices/system/xen_memory/xen_memory0/scrub_pages. + Default value controlled with CONFIG_XEN_SCRUB_PAGES_DEFAULT. + xirc2ps_cs= [NET,PCMCIA] Format: ,,,,,[,[,[,]]] diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index b459edfacff3..90d387b50ab7 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -79,15 +79,19 @@ config XEN_BALLOON_MEMORY_HOTPLUG_LIMIT This value is used to allocate enough space in internal tables needed for physical memory administration. -config XEN_SCRUB_PAGES - bool "Scrub pages before returning them to system" +config XEN_SCRUB_PAGES_DEFAULT + bool "Scrub pages before returning them to system by default" depends on XEN_BALLOON default y help Scrub pages before returning them to the system for reuse by other domains. This makes sure that any confidential data is not accidentally visible to other domains. Is it more - secure, but slightly less efficient. + secure, but slightly less efficient. This can be controlled with + xen_scrub_pages=0 parameter and + /sys/devices/system/xen_memory/xen_memory0/scrub_pages. + This option only sets the default value. + If in doubt, say yes. config XEN_DEV_EVTCHN diff --git a/drivers/xen/mem-reservation.c b/drivers/xen/mem-reservation.c index 084799c6180e..3782cf070338 100644 --- a/drivers/xen/mem-reservation.c +++ b/drivers/xen/mem-reservation.c @@ -14,6 +14,10 @@ #include #include +#include + +bool __read_mostly xen_scrub_pages = IS_ENABLED(CONFIG_XEN_SCRUB_PAGES_DEFAULT); +core_param(xen_scrub_pages, xen_scrub_pages, bool, 0); /* * Use one extent per PAGE_SIZE to avoid to break down the page into diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c index 294f35ce9e46..63c1494a8d73 100644 --- a/drivers/xen/xen-balloon.c +++ b/drivers/xen/xen-balloon.c @@ -44,6 +44,7 @@ #include #include #include +#include #define PAGES2KB(_p) ((_p)<<(PAGE_SHIFT-10)) @@ -137,6 +138,7 @@ static DEVICE_ULONG_ATTR(schedule_delay, 0444, balloon_stats.schedule_delay); static DEVICE_ULONG_ATTR(max_schedule_delay, 0644, balloon_stats.max_schedule_delay); static DEVICE_ULONG_ATTR(retry_count, 0444, balloon_stats.retry_count); static DEVICE_ULONG_ATTR(max_retry_count, 0644, balloon_stats.max_retry_count); +static DEVICE_BOOL_ATTR(scrub_pages, 0644, xen_scrub_pages); static ssize_t show_target_kb(struct device *dev, struct device_attribute *attr, char *buf) @@ -203,6 +205,7 @@ static struct attribute *balloon_attrs[] = { &dev_attr_max_schedule_delay.attr.attr, &dev_attr_retry_count.attr.attr, &dev_attr_max_retry_count.attr.attr, + &dev_attr_scrub_pages.attr.attr, NULL }; diff --git a/include/xen/mem-reservation.h b/include/xen/mem-reservation.h index 80b52b4945e9..a2ab516fcd2c 100644 --- a/include/xen/mem-reservation.h +++ b/include/xen/mem-reservation.h @@ -17,11 +17,12 @@ #include +extern bool xen_scrub_pages; + static inline void xenmem_reservation_scrub_page(struct page *page) { -#ifdef CONFIG_XEN_SCRUB_PAGES - clear_highpage(page); -#endif + if (xen_scrub_pages) + clear_highpage(page); } #ifdef CONFIG_XEN_HAVE_PVMMU From 3366cdb6d350d95466ee430ac50f3c8415ca8f46 Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Fri, 7 Sep 2018 16:31:35 +0200 Subject: [PATCH 0974/1762] xen: avoid crash in disable_hotplug_cpu The command 'xl vcpu-set 0 0', issued in dom0, will crash dom0: BUG: unable to handle kernel NULL pointer dereference at 00000000000002d8 PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 7 PID: 65 Comm: xenwatch Not tainted 4.19.0-rc2-1.ga9462db-default #1 openSUSE Tumbleweed (unreleased) Hardware name: Intel Corporation S5520UR/S5520UR, BIOS S5500.86B.01.00.0050.050620101605 05/06/2010 RIP: e030:device_offline+0x9/0xb0 Code: 77 24 00 e9 ce fe ff ff 48 8b 13 e9 68 ff ff ff 48 8b 13 e9 29 ff ff ff 48 8b 13 e9 ea fe ff ff 90 66 66 66 66 90 41 54 55 53 87 d8 02 00 00 01 0f 85 88 00 00 00 48 c7 c2 20 09 60 81 31 f6 RSP: e02b:ffffc90040f27e80 EFLAGS: 00010203 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff8801f3800000 RSI: ffffc90040f27e70 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff820e47b3 R09: 0000000000000000 R10: 0000000000007ff0 R11: 0000000000000000 R12: ffffffff822e6d30 R13: dead000000000200 R14: dead000000000100 R15: ffffffff8158b4e0 FS: 00007ffa595158c0(0000) GS:ffff8801f39c0000(0000) knlGS:0000000000000000 CS: e033 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000002d8 CR3: 00000001d9602000 CR4: 0000000000002660 Call Trace: handle_vcpu_hotplug_event+0xb5/0xc0 xenwatch_thread+0x80/0x140 ? wait_woken+0x80/0x80 kthread+0x112/0x130 ? kthread_create_worker_on_cpu+0x40/0x40 ret_from_fork+0x3a/0x50 This happens because handle_vcpu_hotplug_event is called twice. In the first iteration cpu_present is still true, in the second iteration cpu_present is false which causes get_cpu_device to return NULL. In case of cpu#0, cpu_online is apparently always true. Fix this crash by checking if the cpu can be hotplugged, which is false for a cpu that was just removed. Also check if the cpu was actually offlined by device_remove, otherwise leave the cpu_present state as it is. Rearrange to code to do all work with device_hotplug_lock held. Signed-off-by: Olaf Hering Reviewed-by: Juergen Gross Signed-off-by: Boris Ostrovsky --- drivers/xen/cpu_hotplug.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/xen/cpu_hotplug.c b/drivers/xen/cpu_hotplug.c index d4265c8ebb22..b1357aa4bc55 100644 --- a/drivers/xen/cpu_hotplug.c +++ b/drivers/xen/cpu_hotplug.c @@ -19,15 +19,16 @@ static void enable_hotplug_cpu(int cpu) static void disable_hotplug_cpu(int cpu) { - if (cpu_online(cpu)) { - lock_device_hotplug(); + if (!cpu_is_hotpluggable(cpu)) + return; + lock_device_hotplug(); + if (cpu_online(cpu)) device_offline(get_cpu_device(cpu)); - unlock_device_hotplug(); - } - if (cpu_present(cpu)) + if (!cpu_online(cpu) && cpu_present(cpu)) { xen_arch_unregister_cpu(cpu); - - set_cpu_present(cpu, false); + set_cpu_present(cpu, false); + } + unlock_device_hotplug(); } static int vcpu_online(unsigned int cpu) From 4dca864b59dd150a221730775e2f21f49779c135 Mon Sep 17 00:00:00 2001 From: Josh Abraham Date: Wed, 12 Sep 2018 15:13:54 -1000 Subject: [PATCH 0975/1762] xen: fix GCC warning and remove duplicate EVTCHN_ROW/EVTCHN_COL usage MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch removes duplicate macro useage in events_base.c. It also fixes gcc warning: variable ‘col’ set but not used [-Wunused-but-set-variable] Signed-off-by: Joshua Abraham Reviewed-by: Juergen Gross Signed-off-by: Boris Ostrovsky --- drivers/xen/events/events_base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c index 08e4af04d6f2..e6c1934734b7 100644 --- a/drivers/xen/events/events_base.c +++ b/drivers/xen/events/events_base.c @@ -138,7 +138,7 @@ static int set_evtchn_to_irq(unsigned evtchn, unsigned irq) clear_evtchn_to_irq_row(row); } - evtchn_to_irq[EVTCHN_ROW(evtchn)][EVTCHN_COL(evtchn)] = irq; + evtchn_to_irq[row][col] = irq; return 0; } From 58a57569904039d9ac38c0ff2a88396a43899689 Mon Sep 17 00:00:00 2001 From: Michal Hocko Date: Wed, 5 Sep 2018 09:21:39 +1000 Subject: [PATCH 0976/1762] xen/gntdev: fix up blockable calls to mn_invl_range_start Patch series "mmu_notifiers follow ups". Tetsuo has noticed some fallouts from 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers"). One of them has been fixed and picked up by AMD/DRM maintainer [1]. XEN issue is fixed by patch 1. I have also clarified expectations about blockable semantic of invalidate_range_end. Finally the last patch removes MMU_INVALIDATE_DOES_NOT_BLOCK which is no longer used nor needed. [1] http://lkml.kernel.org/r/20180824135257.GU29735@dhcp22.suse.cz This patch (of 3): 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers") has introduced blockable parameter to all mmu_notifiers and the notifier has to back off when called in !blockable case and it could block down the road. The above commit implemented that for mn_invl_range_start but both in_range checks are done unconditionally regardless of the blockable mode and as such they would fail all the time for regular calls. Fix this by checking blockable parameter as well. Once we are there we can remove the stale TODO. The lock has to be sleepable because we wait for completion down in gnttab_unmap_refs_sync. Link: http://lkml.kernel.org/r/20180827112623.8992-2-mhocko@kernel.org Fixes: 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers") Signed-off-by: Michal Hocko Cc: Boris Ostrovsky Cc: Juergen Gross Cc: David Rientjes Cc: Jerome Glisse Cc: Tetsuo Handa Reviewed-by: Juergen Gross Signed-off-by: Boris Ostrovsky --- drivers/xen/gntdev.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 57390c7666e5..b0b02a501167 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -492,12 +492,19 @@ static bool in_range(struct gntdev_grant_map *map, return true; } -static void unmap_if_in_range(struct gntdev_grant_map *map, - unsigned long start, unsigned long end) +static int unmap_if_in_range(struct gntdev_grant_map *map, + unsigned long start, unsigned long end, + bool blockable) { unsigned long mstart, mend; int err; + if (!in_range(map, start, end)) + return 0; + + if (!blockable) + return -EAGAIN; + mstart = max(start, map->vma->vm_start); mend = min(end, map->vma->vm_end); pr_debug("map %d+%d (%lx %lx), range %lx %lx, mrange %lx %lx\n", @@ -508,6 +515,8 @@ static void unmap_if_in_range(struct gntdev_grant_map *map, (mstart - map->vma->vm_start) >> PAGE_SHIFT, (mend - mstart) >> PAGE_SHIFT); WARN_ON(err); + + return 0; } static int mn_invl_range_start(struct mmu_notifier *mn, @@ -519,25 +528,20 @@ static int mn_invl_range_start(struct mmu_notifier *mn, struct gntdev_grant_map *map; int ret = 0; - /* TODO do we really need a mutex here? */ if (blockable) mutex_lock(&priv->lock); else if (!mutex_trylock(&priv->lock)) return -EAGAIN; list_for_each_entry(map, &priv->maps, next) { - if (in_range(map, start, end)) { - ret = -EAGAIN; + ret = unmap_if_in_range(map, start, end, blockable); + if (ret) goto out_unlock; - } - unmap_if_in_range(map, start, end); } list_for_each_entry(map, &priv->freeable_maps, next) { - if (in_range(map, start, end)) { - ret = -EAGAIN; + ret = unmap_if_in_range(map, start, end, blockable); + if (ret) goto out_unlock; - } - unmap_if_in_range(map, start, end); } out_unlock: From 61a6bd83abf2f14b2a917b6a0279c88d299267af Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 14 Sep 2018 12:59:14 +0200 Subject: [PATCH 0977/1762] Revert "x86/mm/legacy: Populate the user page-table with user pgd's" This reverts commit 1f40a46cf47c12d93a5ad9dccd82bd36ff8f956a. It turned out that this patch is not sufficient to enable PTI on 32 bit systems with legacy 2-level page-tables. In this paging mode the huge-page PTEs are in the top-level page-table directory, where also the mirroring to the user-space page-table happens. So every huge PTE exits twice, in the kernel and in the user page-table. That means that accessed/dirty bits need to be fetched from two PTEs in this mode to be safe, but this is not trivial to implement because it needs changes to generic code just for the sake of enabling PTI with 32-bit legacy paging. As all systems that need PTI should support PAE anyway, remove support for PTI when 32-bit legacy paging is used. Fixes: 7757d607c6b3 ('x86/pti: Allow CONFIG_PAGE_TABLE_ISOLATION for x86_32') Reported-by: Meelis Roos Signed-off-by: Joerg Roedel Signed-off-by: Thomas Gleixner Cc: hpa@zytor.com Cc: linux-mm@kvack.org Cc: Linus Torvalds Cc: Andy Lutomirski Cc: Dave Hansen Cc: Borislav Petkov Cc: Andrea Arcangeli Link: https://lkml.kernel.org/r/1536922754-31379-1-git-send-email-joro@8bytes.org --- arch/x86/include/asm/pgtable-2level.h | 9 --------- security/Kconfig | 2 +- 2 files changed, 1 insertion(+), 10 deletions(-) diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h index 24c6cf5f16b7..60d0f9015317 100644 --- a/arch/x86/include/asm/pgtable-2level.h +++ b/arch/x86/include/asm/pgtable-2level.h @@ -19,9 +19,6 @@ static inline void native_set_pte(pte_t *ptep , pte_t pte) static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) { -#ifdef CONFIG_PAGE_TABLE_ISOLATION - pmd.pud.p4d.pgd = pti_set_user_pgtbl(&pmdp->pud.p4d.pgd, pmd.pud.p4d.pgd); -#endif *pmdp = pmd; } @@ -61,9 +58,6 @@ static inline pte_t native_ptep_get_and_clear(pte_t *xp) #ifdef CONFIG_SMP static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp) { -#ifdef CONFIG_PAGE_TABLE_ISOLATION - pti_set_user_pgtbl(&xp->pud.p4d.pgd, __pgd(0)); -#endif return __pmd(xchg((pmdval_t *)xp, 0)); } #else @@ -73,9 +67,6 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp) #ifdef CONFIG_SMP static inline pud_t native_pudp_get_and_clear(pud_t *xp) { -#ifdef CONFIG_PAGE_TABLE_ISOLATION - pti_set_user_pgtbl(&xp->p4d.pgd, __pgd(0)); -#endif return __pud(xchg((pudval_t *)xp, 0)); } #else diff --git a/security/Kconfig b/security/Kconfig index 27d8b2688f75..d9aa521b5206 100644 --- a/security/Kconfig +++ b/security/Kconfig @@ -57,7 +57,7 @@ config SECURITY_NETWORK config PAGE_TABLE_ISOLATION bool "Remove the kernel mapping in user mode" default y - depends on X86 && !UML + depends on (X86_64 || X86_PAE) && !UML help This feature reduces the number of hardware side channels by ensuring that the majority of kernel addresses are not mapped From 34043d250f51368f214aed7f54c2dc29c819a8c7 Mon Sep 17 00:00:00 2001 From: Davide Caratti Date: Fri, 14 Sep 2018 12:03:18 +0200 Subject: [PATCH 0978/1762] net/sched: act_sample: fix NULL dereference in the data path Matteo reported the following splat, testing the datapath of TC 'sample': BUG: KASAN: null-ptr-deref in tcf_sample_act+0xc4/0x310 Read of size 8 at addr 0000000000000000 by task nc/433 CPU: 0 PID: 433 Comm: nc Not tainted 4.19.0-rc3-kvm #17 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS ?-20180531_142017-buildhw-08.phx2.fedoraproject.org-1.fc28 04/01/2014 Call Trace: kasan_report.cold.6+0x6c/0x2fa tcf_sample_act+0xc4/0x310 ? dev_hard_start_xmit+0x117/0x180 tcf_action_exec+0xa3/0x160 tcf_classify+0xdd/0x1d0 htb_enqueue+0x18e/0x6b0 ? deref_stack_reg+0x7a/0xb0 ? htb_delete+0x4b0/0x4b0 ? unwind_next_frame+0x819/0x8f0 ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 __dev_queue_xmit+0x722/0xca0 ? unwind_get_return_address_ptr+0x50/0x50 ? netdev_pick_tx+0xe0/0xe0 ? save_stack+0x8c/0xb0 ? kasan_kmalloc+0xbe/0xd0 ? __kmalloc_track_caller+0xe4/0x1c0 ? __kmalloc_reserve.isra.45+0x24/0x70 ? __alloc_skb+0xdd/0x2e0 ? sk_stream_alloc_skb+0x91/0x3b0 ? tcp_sendmsg_locked+0x71b/0x15a0 ? tcp_sendmsg+0x22/0x40 ? __sys_sendto+0x1b0/0x250 ? __x64_sys_sendto+0x6f/0x80 ? do_syscall_64+0x5d/0x150 ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 ? __sys_sendto+0x1b0/0x250 ? __x64_sys_sendto+0x6f/0x80 ? do_syscall_64+0x5d/0x150 ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 ip_finish_output2+0x495/0x590 ? ip_copy_metadata+0x2e0/0x2e0 ? skb_gso_validate_network_len+0x6f/0x110 ? ip_finish_output+0x174/0x280 __tcp_transmit_skb+0xb17/0x12b0 ? __tcp_select_window+0x380/0x380 tcp_write_xmit+0x913/0x1de0 ? __sk_mem_schedule+0x50/0x80 tcp_sendmsg_locked+0x49d/0x15a0 ? tcp_rcv_established+0x8da/0xa30 ? tcp_set_state+0x220/0x220 ? clear_user+0x1f/0x50 ? iov_iter_zero+0x1ae/0x590 ? __fget_light+0xa0/0xe0 tcp_sendmsg+0x22/0x40 __sys_sendto+0x1b0/0x250 ? __ia32_sys_getpeername+0x40/0x40 ? _copy_to_user+0x58/0x70 ? poll_select_copy_remaining+0x176/0x200 ? __pollwait+0x1c0/0x1c0 ? ktime_get_ts64+0x11f/0x140 ? kern_select+0x108/0x150 ? core_sys_select+0x360/0x360 ? vfs_read+0x127/0x150 ? kernel_write+0x90/0x90 __x64_sys_sendto+0x6f/0x80 do_syscall_64+0x5d/0x150 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fefef2b129d Code: ff ff ff ff eb b6 0f 1f 80 00 00 00 00 48 8d 05 51 37 0c 00 41 89 ca 8b 00 85 c0 75 20 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 6b f3 c3 66 0f 1f 84 00 00 00 00 00 41 56 41 RSP: 002b:00007fff2f5350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 000056118d60c120 RCX: 00007fefef2b129d RDX: 0000000000002000 RSI: 000056118d629320 RDI: 0000000000000003 RBP: 000056118d530370 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000002000 R13: 000056118d5c2a10 R14: 000056118d5c2a10 R15: 000056118d5303b8 tcf_sample_act() tried to update its per-cpu stats, but tcf_sample_init() forgot to allocate them, because tcf_idr_create() was called with a wrong value of 'cpustats'. Setting it to true proved to fix the reported crash. Reported-by: Matteo Croce Fixes: 65a206c01e8e ("net/sched: Change act_api and act_xxx modules to use IDR") Fixes: 5c5670fae430 ("net/sched: Introduce sample tc action") Tested-by: Matteo Croce Signed-off-by: Davide Caratti Acked-by: Jiri Pirko Signed-off-by: David S. Miller --- net/sched/act_sample.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/act_sample.c b/net/sched/act_sample.c index 44e9c00657bc..6b67aa13d2dd 100644 --- a/net/sched/act_sample.c +++ b/net/sched/act_sample.c @@ -69,7 +69,7 @@ static int tcf_sample_init(struct net *net, struct nlattr *nla, if (!exists) { ret = tcf_idr_create(tn, parm->index, est, a, - &act_sample_ops, bind, false); + &act_sample_ops, bind, true); if (ret) { tcf_idr_cleanup(tn, parm->index); return ret; From dabeb13eee81329338b1f8f330dfcc37a86714d7 Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Fri, 14 Sep 2018 10:47:14 +0200 Subject: [PATCH 0979/1762] batman-adv: Increase version number to 2018.3 Signed-off-by: Sven Eckelmann Signed-off-by: Simon Wunderlich --- net/batman-adv/main.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h index 8da3c9336111..3ccc75ee719c 100644 --- a/net/batman-adv/main.h +++ b/net/batman-adv/main.h @@ -25,7 +25,7 @@ #define BATADV_DRIVER_DEVICE "batman-adv" #ifndef BATADV_SOURCE_VERSION -#define BATADV_SOURCE_VERSION "2018.2" +#define BATADV_SOURCE_VERSION "2018.3" #endif /* B.A.T.M.A.N. parameters */ From 1a866306e0fbf3caab168c1389e4497702749441 Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Wed, 12 Sep 2018 16:34:27 +0200 Subject: [PATCH 0980/1762] drm/etnaviv: add DMA configuration for etnaviv platform device MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The etnaviv device is a virtual device backing the DRM device, which may drive multiple hardware GPU core devices. As most of the dma-mapping handling is done through the virtual device, we need to make sure that a proper DMA setup is in place. The easiest way to get a reasonable configuration is to let the virtual device share the DMA configuration with one of the GPU devices, so call of_dma_configure() with the right parameters manually. This assumes that all etnaviv driven GPU devices in the system share the same DMA configuration. If we ever encounter a SoC where the GPUs are on busses with different offsets or behind different IOMMUs that will require much deeper changes to the driver, as we would need to implement etnaviv specific versions of most of the DRM helper functions. For now we should be fine with this solution. Signed-off-by: Lucas Stach Tested-by: Guido Günther Tested-by: Eugeniy Paltsev --- drivers/gpu/drm/etnaviv/etnaviv_drv.c | 27 +++++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c index 9b2720b41571..83c1f46670bf 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c @@ -592,8 +592,6 @@ static int etnaviv_pdev_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct component_match *match = NULL; - dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); - if (!dev->platform_data) { struct device_node *core_node; @@ -655,13 +653,30 @@ static int __init etnaviv_init(void) for_each_compatible_node(np, NULL, "vivante,gc") { if (!of_device_is_available(np)) continue; - pdev = platform_device_register_simple("etnaviv", -1, - NULL, 0); - if (IS_ERR(pdev)) { - ret = PTR_ERR(pdev); + + pdev = platform_device_alloc("etnaviv", -1); + if (!pdev) { + ret = -ENOMEM; of_node_put(np); goto unregister_platform_driver; } + pdev->dev.coherent_dma_mask = DMA_BIT_MASK(40); + pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; + + /* + * Apply the same DMA configuration to the virtual etnaviv + * device as the GPU we found. This assumes that all Vivante + * GPUs in the system share the same DMA constraints. + */ + of_dma_configure(&pdev->dev, np, true); + + ret = platform_device_add(pdev); + if (ret) { + platform_device_put(pdev); + of_node_put(np); + goto unregister_platform_driver; + } + etnaviv_drm = pdev; of_node_put(np); break; From 7c2020c3022dfa6801d420b55ef0c507322d2c60 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Fri, 14 Sep 2018 12:27:27 +0100 Subject: [PATCH 0981/1762] ARC: fix spelling mistake "entires" -> "entries" Trivial fix to spelling mistake in Kconfig Signed-off-by: Colin Ian King Signed-off-by: Vineet Gupta --- arch/arc/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index b4441b0764d7..a045f3086047 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -149,7 +149,7 @@ config ARC_CPU_770 Support for ARC770 core introduced with Rel 4.10 (Summer 2011) This core has a bunch of cool new features: -MMU-v3: Variable Page Sz (4k, 8k, 16k), bigger J-TLB (128x4) - Shared Address Spaces (for sharing TLB entires in MMU) + Shared Address Spaces (for sharing TLB entries in MMU) -Caches: New Prog Model, Region Flush -Insns: endian swap, load-locked/store-conditional, time-stamp-ctr From 2a534a7473bf4e7f1c12805113f80c795fc8e89a Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 23 Aug 2018 11:02:49 -0400 Subject: [PATCH 0982/1762] NFSv4: Fix a tracepoint Oops in initiate_file_draining() Now that the value of 'ino' can be NULL or an ERR_PTR(), we need to change the test in the tracepoint. Fixes: ce5624f7e6675 ("NFSv4: Return NFS4ERR_DELAY when a layout fails...") Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org # v4.17+ Signed-off-by: Anna Schumaker --- fs/nfs/nfs4trace.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h index a275fba93170..708342f4692f 100644 --- a/fs/nfs/nfs4trace.h +++ b/fs/nfs/nfs4trace.h @@ -1194,7 +1194,7 @@ DECLARE_EVENT_CLASS(nfs4_inode_stateid_callback_event, TP_fast_assign( __entry->error = error; __entry->fhandle = nfs_fhandle_hash(fhandle); - if (inode != NULL) { + if (!IS_ERR_OR_NULL(inode)) { __entry->fileid = NFS_FILEID(inode); __entry->dev = inode->i_sb->s_dev; } else { From d03360aaf5ccac49581960bd736258c62972b88b Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 5 Sep 2018 14:07:12 -0400 Subject: [PATCH 0983/1762] pNFS: Ensure we return the error if someone kills a waiting layoutget If someone interrupts a wait on one or more outstanding layoutgets in pnfs_update_layout() then return the ERESTARTSYS/EINTR error. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- fs/nfs/pnfs.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index e8f232de484f..7d9a51e6b847 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1740,16 +1740,16 @@ static bool pnfs_within_mdsthreshold(struct nfs_open_context *ctx, return ret; } -static bool pnfs_prepare_to_retry_layoutget(struct pnfs_layout_hdr *lo) +static int pnfs_prepare_to_retry_layoutget(struct pnfs_layout_hdr *lo) { /* * send layoutcommit as it can hold up layoutreturn due to lseg * reference */ pnfs_layoutcommit_inode(lo->plh_inode, false); - return !wait_on_bit_action(&lo->plh_flags, NFS_LAYOUT_RETURN, + return wait_on_bit_action(&lo->plh_flags, NFS_LAYOUT_RETURN, nfs_wait_bit_killable, - TASK_UNINTERRUPTIBLE); + TASK_KILLABLE); } static void nfs_layoutget_begin(struct pnfs_layout_hdr *lo) @@ -1830,7 +1830,9 @@ pnfs_update_layout(struct inode *ino, } lookup_again: - nfs4_client_recover_expired_lease(clp); + lseg = ERR_PTR(nfs4_client_recover_expired_lease(clp)); + if (IS_ERR(lseg)) + goto out; first = false; spin_lock(&ino->i_lock); lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags); @@ -1863,9 +1865,9 @@ lookup_again: if (list_empty(&lo->plh_segs) && atomic_read(&lo->plh_outstanding) != 0) { spin_unlock(&ino->i_lock); - if (wait_var_event_killable(&lo->plh_outstanding, - atomic_read(&lo->plh_outstanding) == 0 - || !list_empty(&lo->plh_segs))) + lseg = ERR_PTR(wait_var_event_killable(&lo->plh_outstanding, + atomic_read(&lo->plh_outstanding))); + if (IS_ERR(lseg) || !list_empty(&lo->plh_segs)) goto out_put_layout_hdr; pnfs_put_layout_hdr(lo); goto lookup_again; @@ -1898,8 +1900,11 @@ lookup_again: if (test_and_set_bit(NFS_LAYOUT_FIRST_LAYOUTGET, &lo->plh_flags)) { spin_unlock(&ino->i_lock); - wait_on_bit(&lo->plh_flags, NFS_LAYOUT_FIRST_LAYOUTGET, - TASK_UNINTERRUPTIBLE); + lseg = ERR_PTR(wait_on_bit(&lo->plh_flags, + NFS_LAYOUT_FIRST_LAYOUTGET, + TASK_KILLABLE)); + if (IS_ERR(lseg)) + goto out_put_layout_hdr; pnfs_put_layout_hdr(lo); dprintk("%s retrying\n", __func__); goto lookup_again; @@ -1925,7 +1930,8 @@ lookup_again: if (test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) { spin_unlock(&ino->i_lock); dprintk("%s wait for layoutreturn\n", __func__); - if (pnfs_prepare_to_retry_layoutget(lo)) { + lseg = ERR_PTR(pnfs_prepare_to_retry_layoutget(lo)); + if (!IS_ERR(lseg)) { if (first) pnfs_clear_first_layoutget(lo); pnfs_put_layout_hdr(lo); From 2edaead69e7573f35e8d5dc20938e41eacc21b35 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 5 Sep 2018 14:07:13 -0400 Subject: [PATCH 0984/1762] NFSv4: Fix a tracepoint Oops in initiate_file_draining() Now that the value of 'ino' can be NULL or an ERR_PTR(), we need to change the test in the tracepoint. Fixes: ce5624f7e6675 ("NFSv4: Return NFS4ERR_DELAY when a layout fails...") Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org # v4.17+ Signed-off-by: Anna Schumaker --- fs/nfs/nfs4trace.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h index 708342f4692f..b1483b303e0b 100644 --- a/fs/nfs/nfs4trace.h +++ b/fs/nfs/nfs4trace.h @@ -1137,7 +1137,7 @@ DECLARE_EVENT_CLASS(nfs4_inode_callback_event, TP_fast_assign( __entry->error = error; __entry->fhandle = nfs_fhandle_hash(fhandle); - if (inode != NULL) { + if (!IS_ERR_OR_NULL(inode)) { __entry->fileid = NFS_FILEID(inode); __entry->dev = inode->i_sb->s_dev; } else { From 994b15b983a72e1148a173b61e5b279219bb45ae Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 5 Sep 2018 14:07:14 -0400 Subject: [PATCH 0985/1762] NFSv4.1 fix infinite loop on I/O. The previous fix broke recovery of delegated stateids because it assumes that if we did not mark the delegation as suspect, then the delegation has effectively been revoked, and so it removes that delegation irrespectively of whether or not it is valid and still in use. While this is "mostly harmless" for ordinary I/O, we've seen pNFS fail with LAYOUTGET spinning in an infinite loop while complaining that we're using an invalid stateid (in this case the all-zero stateid). What we rather want to do here is ensure that the delegation is always correctly marked as needing testing when that is the case. So we want to close the loophole offered by nfs4_schedule_stateid_recovery(), which marks the state as needing to be reclaimed, but not the delegation that may be backing it. Fixes: 0e3d3e5df07dc ("NFSv4.1 fix infinite loop on IO BAD_STATEID error") Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org # v4.11+ Signed-off-by: Anna Schumaker --- fs/nfs/nfs4proc.c | 10 +++++++--- fs/nfs/nfs4state.c | 2 ++ 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index df60dce935f3..094c3c09ff00 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -2676,14 +2676,18 @@ static void nfs41_check_delegation_stateid(struct nfs4_state *state) } nfs4_stateid_copy(&stateid, &delegation->stateid); - if (test_bit(NFS_DELEGATION_REVOKED, &delegation->flags) || - !test_and_clear_bit(NFS_DELEGATION_TEST_EXPIRED, - &delegation->flags)) { + if (test_bit(NFS_DELEGATION_REVOKED, &delegation->flags)) { rcu_read_unlock(); nfs_finish_clear_delegation_stateid(state, &stateid); return; } + if (!test_and_clear_bit(NFS_DELEGATION_TEST_EXPIRED, + &delegation->flags)) { + rcu_read_unlock(); + return; + } + cred = get_rpccred(delegation->cred); rcu_read_unlock(); status = nfs41_test_and_free_expired_stateid(server, &stateid, cred); diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 3df0eb52da1c..40a08cd483f0 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1390,6 +1390,8 @@ int nfs4_schedule_stateid_recovery(const struct nfs_server *server, struct nfs4_ if (!nfs4_state_mark_reclaim_nograce(clp, state)) return -EBADF; + nfs_inode_find_delegation_state_and_recover(state->inode, + &state->stateid); dprintk("%s: scheduling stateid recovery for server %s\n", __func__, clp->cl_hostname); nfs4_schedule_state_manager(clp); From 9f0c5124f4a82503ee5d55c60b0b9c6afc3af68b Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 5 Sep 2018 14:07:15 -0400 Subject: [PATCH 0986/1762] NFS: Don't open code clearing of delegation state Add a helper for the case when the nfs4 open state has been set to use a delegation stateid, and we want to revert to using the open stateid. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- fs/nfs/nfs4proc.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 094c3c09ff00..481787cac4c2 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1637,6 +1637,14 @@ static void nfs_state_set_delegation(struct nfs4_state *state, write_sequnlock(&state->seqlock); } +static void nfs_state_clear_delegation(struct nfs4_state *state) +{ + write_seqlock(&state->seqlock); + nfs4_stateid_copy(&state->stateid, &state->open_stateid); + clear_bit(NFS_DELEGATED_STATE, &state->flags); + write_sequnlock(&state->seqlock); +} + static int update_open_stateid(struct nfs4_state *state, const nfs4_stateid *open_stateid, const nfs4_stateid *delegation, @@ -2145,10 +2153,7 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, if (IS_ERR(opendata)) return PTR_ERR(opendata); nfs4_stateid_copy(&opendata->o_arg.u.delegation, stateid); - write_seqlock(&state->seqlock); - nfs4_stateid_copy(&state->stateid, &state->open_stateid); - write_sequnlock(&state->seqlock); - clear_bit(NFS_DELEGATED_STATE, &state->flags); + nfs_state_clear_delegation(state); switch (type & (FMODE_READ|FMODE_WRITE)) { case FMODE_READ|FMODE_WRITE: case FMODE_WRITE: @@ -2601,10 +2606,7 @@ static void nfs_finish_clear_delegation_stateid(struct nfs4_state *state, const nfs4_stateid *stateid) { nfs_remove_bad_delegation(state->inode, stateid); - write_seqlock(&state->seqlock); - nfs4_stateid_copy(&state->stateid, &state->open_stateid); - write_sequnlock(&state->seqlock); - clear_bit(NFS_DELEGATED_STATE, &state->flags); + nfs_state_clear_delegation(state); } static void nfs40_clear_delegation_stateid(struct nfs4_state *state) @@ -2672,13 +2674,14 @@ static void nfs41_check_delegation_stateid(struct nfs4_state *state) delegation = rcu_dereference(NFS_I(state->inode)->delegation); if (delegation == NULL) { rcu_read_unlock(); + nfs_state_clear_delegation(state); return; } nfs4_stateid_copy(&stateid, &delegation->stateid); if (test_bit(NFS_DELEGATION_REVOKED, &delegation->flags)) { rcu_read_unlock(); - nfs_finish_clear_delegation_stateid(state, &stateid); + nfs_state_clear_delegation(state); return; } From cf51e4b9c34407bf0c3d9b582b7837e047e1df47 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 13 Sep 2018 14:58:49 +0900 Subject: [PATCH 0987/1762] mtd: rawnand: denali: fix a race condition when DMA is kicked I thought the read-back of the DMA_ENABLE register was unnecessary (at least it is working on my boards), then deleted it in commit 586a2c52909d ("mtd: nand: denali: squash denali_enable_dma() helper into caller"). Sorry, I was wrong - it caused a timing issue on Cyclone5 SoCFPGAs. Revive the register read-back, commenting why this is necessary. Fixes: 586a2c52909d ("mtd: nand: denali: squash denali_enable_dma() helper into caller") Cc: Reported-by: Steffen Trumtrar Signed-off-by: Masahiro Yamada Reviewed-by: Miquel Raynal Signed-off-by: Boris Brezillon --- drivers/mtd/nand/raw/denali.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c index 67b2065e7a19..b864b93dd289 100644 --- a/drivers/mtd/nand/raw/denali.c +++ b/drivers/mtd/nand/raw/denali.c @@ -596,6 +596,12 @@ static int denali_dma_xfer(struct denali_nand_info *denali, void *buf, } iowrite32(DMA_ENABLE__FLAG, denali->reg + DMA_ENABLE); + /* + * The ->setup_dma() hook kicks DMA by using the data/command + * interface, which belongs to a different AXI port from the + * register interface. Read back the register to avoid a race. + */ + ioread32(denali->reg + DMA_ENABLE); denali_reset_irq(denali); denali->setup_dma(denali, dma_addr, page, write); From 002b87d2aace62b4f3841c3aa43309d2380092be Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 14 Sep 2018 15:10:29 -0700 Subject: [PATCH 0988/1762] x86/APM: Fix build warning when PROC_FS is not enabled Fix build warning in apm_32.c when CONFIG_PROC_FS is not enabled: ../arch/x86/kernel/apm_32.c:1643:12: warning: 'proc_apm_show' defined but not used [-Wunused-function] static int proc_apm_show(struct seq_file *m, void *v) Fixes: 3f3942aca6da ("proc: introduce proc_create_single{,_data}") Signed-off-by: Randy Dunlap Signed-off-by: Thomas Gleixner Reviewed-by: Christoph Hellwig Cc: Jiri Kosina Link: https://lkml.kernel.org/r/be39ac12-44c2-4715-247f-4dcc3c525b8b@infradead.org --- arch/x86/kernel/apm_32.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c index ec00d1ff5098..f7151cd03cb0 100644 --- a/arch/x86/kernel/apm_32.c +++ b/arch/x86/kernel/apm_32.c @@ -1640,6 +1640,7 @@ static int do_open(struct inode *inode, struct file *filp) return 0; } +#ifdef CONFIG_PROC_FS static int proc_apm_show(struct seq_file *m, void *v) { unsigned short bx; @@ -1719,6 +1720,7 @@ static int proc_apm_show(struct seq_file *m, void *v) units); return 0; } +#endif static int apm(void *unused) { From 37196ba4ae95a2077d78715eb12e879e57613d43 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Thu, 13 Sep 2018 19:43:58 -0700 Subject: [PATCH 0989/1762] hwmon: (nct6775) Fix virtual temperature sources for NCT6796D The following kernel log message is reported for the nct6775 driver on ASUS WS X299 SAGE. nct6775: Found NCT6796D or compatible chip at 0x2e:0x290 nct6775 nct6775.656: Invalid temperature source 11 at index 0, source register 0x100, temp register 0x73 nct6775 nct6775.656: Invalid temperature source 11 at index 2, source register 0x300, temp register 0x77 nct6775 nct6775.656: Invalid temperature source 11 at index 3, source register 0x800, temp register 0x79 nct6775 nct6775.656: Invalid temperature source 11 at index 4, source register 0x900, temp register 0x7b A recent version of the datasheet lists temperature source 11 as reserved. However, an older version of the datasheet lists temperature sources 10 and 11 as supported virtual temperature sources. Apparently the older version of the datasheet is correct, so list those temperature sources as supported. Virtual temperature sources are different than other temperature sources: Values are not read from a temperature sensor, but written either from BIOS or an embedded controller. As such, each virtual temperature has to be reported. Since there is now more than one temperature source, we have to keep virtual temperature sources in a chip-specific mask and can no longer rely on the assumption that there is only one virtual temperature source with a fixed index. This accounts for most of the complexity of this patch. Reported-by: Robert Kern Cc: Robert Kern Fixes: 81820059a428 ("hwmon: (nct6775) Add support for NCT6796D") Signed-off-by: Guenter Roeck --- drivers/hwmon/nct6775.c | 28 ++++++++++++++++++++++------ 1 file changed, 22 insertions(+), 6 deletions(-) diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index 87c316c6c341..202a2b422461 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -207,8 +207,6 @@ superio_exit(int ioreg) #define NUM_FAN 7 -#define TEMP_SOURCE_VIRTUAL 0x1f - /* Common and NCT6775 specific data */ /* Voltage min/max registers for nr=7..14 are in bank 5 */ @@ -374,6 +372,7 @@ static const char *const nct6775_temp_label[] = { }; #define NCT6775_TEMP_MASK 0x001ffffe +#define NCT6775_VIRT_TEMP_MASK 0x00000000 static const u16 NCT6775_REG_TEMP_ALTERNATE[32] = { [13] = 0x661, @@ -462,6 +461,7 @@ static const char *const nct6776_temp_label[] = { }; #define NCT6776_TEMP_MASK 0x007ffffe +#define NCT6776_VIRT_TEMP_MASK 0x00000000 static const u16 NCT6776_REG_TEMP_ALTERNATE[32] = { [14] = 0x401, @@ -560,7 +560,9 @@ static const char *const nct6779_temp_label[] = { }; #define NCT6779_TEMP_MASK 0x07ffff7e +#define NCT6779_VIRT_TEMP_MASK 0x00000000 #define NCT6791_TEMP_MASK 0x87ffff7e +#define NCT6791_VIRT_TEMP_MASK 0x80000000 static const u16 NCT6779_REG_TEMP_ALTERNATE[32] = { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495, 0, 0, @@ -639,6 +641,7 @@ static const char *const nct6792_temp_label[] = { }; #define NCT6792_TEMP_MASK 0x9fffff7e +#define NCT6792_VIRT_TEMP_MASK 0x80000000 static const char *const nct6793_temp_label[] = { "", @@ -676,6 +679,7 @@ static const char *const nct6793_temp_label[] = { }; #define NCT6793_TEMP_MASK 0xbfff037e +#define NCT6793_VIRT_TEMP_MASK 0x80000000 static const char *const nct6795_temp_label[] = { "", @@ -713,6 +717,7 @@ static const char *const nct6795_temp_label[] = { }; #define NCT6795_TEMP_MASK 0xbfffff7e +#define NCT6795_VIRT_TEMP_MASK 0x80000000 static const char *const nct6796_temp_label[] = { "", @@ -725,8 +730,8 @@ static const char *const nct6796_temp_label[] = { "AUXTIN4", "SMBUSMASTER 0", "SMBUSMASTER 1", - "", - "", + "Virtual_TEMP", + "Virtual_TEMP", "", "", "", @@ -749,7 +754,8 @@ static const char *const nct6796_temp_label[] = { "Virtual_TEMP" }; -#define NCT6796_TEMP_MASK 0xbfff03fe +#define NCT6796_TEMP_MASK 0xbfff0ffe +#define NCT6796_VIRT_TEMP_MASK 0x80000c00 /* NCT6102D/NCT6106D specific data */ @@ -970,6 +976,7 @@ struct nct6775_data { u16 reg_temp_config[NUM_TEMP]; const char * const *temp_label; u32 temp_mask; + u32 virt_temp_mask; u16 REG_CONFIG; u16 REG_VBAT; @@ -3644,6 +3651,7 @@ static int nct6775_probe(struct platform_device *pdev) data->temp_label = nct6776_temp_label; data->temp_mask = NCT6776_TEMP_MASK; + data->virt_temp_mask = NCT6776_VIRT_TEMP_MASK; data->REG_VBAT = NCT6106_REG_VBAT; data->REG_DIODE = NCT6106_REG_DIODE; @@ -3722,6 +3730,7 @@ static int nct6775_probe(struct platform_device *pdev) data->temp_label = nct6775_temp_label; data->temp_mask = NCT6775_TEMP_MASK; + data->virt_temp_mask = NCT6775_VIRT_TEMP_MASK; data->REG_CONFIG = NCT6775_REG_CONFIG; data->REG_VBAT = NCT6775_REG_VBAT; @@ -3794,6 +3803,7 @@ static int nct6775_probe(struct platform_device *pdev) data->temp_label = nct6776_temp_label; data->temp_mask = NCT6776_TEMP_MASK; + data->virt_temp_mask = NCT6776_VIRT_TEMP_MASK; data->REG_CONFIG = NCT6775_REG_CONFIG; data->REG_VBAT = NCT6775_REG_VBAT; @@ -3866,6 +3876,7 @@ static int nct6775_probe(struct platform_device *pdev) data->temp_label = nct6779_temp_label; data->temp_mask = NCT6779_TEMP_MASK; + data->virt_temp_mask = NCT6779_VIRT_TEMP_MASK; data->REG_CONFIG = NCT6775_REG_CONFIG; data->REG_VBAT = NCT6775_REG_VBAT; @@ -3949,22 +3960,27 @@ static int nct6775_probe(struct platform_device *pdev) case nct6791: data->temp_label = nct6779_temp_label; data->temp_mask = NCT6791_TEMP_MASK; + data->virt_temp_mask = NCT6791_VIRT_TEMP_MASK; break; case nct6792: data->temp_label = nct6792_temp_label; data->temp_mask = NCT6792_TEMP_MASK; + data->virt_temp_mask = NCT6792_VIRT_TEMP_MASK; break; case nct6793: data->temp_label = nct6793_temp_label; data->temp_mask = NCT6793_TEMP_MASK; + data->virt_temp_mask = NCT6793_VIRT_TEMP_MASK; break; case nct6795: data->temp_label = nct6795_temp_label; data->temp_mask = NCT6795_TEMP_MASK; + data->virt_temp_mask = NCT6795_VIRT_TEMP_MASK; break; case nct6796: data->temp_label = nct6796_temp_label; data->temp_mask = NCT6796_TEMP_MASK; + data->virt_temp_mask = NCT6796_VIRT_TEMP_MASK; break; } @@ -4148,7 +4164,7 @@ static int nct6775_probe(struct platform_device *pdev) * for each fan reflects a different temperature, and there * are no duplicates. */ - if (src != TEMP_SOURCE_VIRTUAL) { + if (!(data->virt_temp_mask & BIT(src))) { if (mask & BIT(src)) continue; mask |= BIT(src); From 338affb548c243d2af25b1ca628e67819350de6b Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Sat, 15 Sep 2018 14:28:26 -0400 Subject: [PATCH 0990/1762] ext4: show test_dummy_encryption mount option in /proc/mounts When in effect, add "test_dummy_encryption" to _ext4_show_options() so that it is shown in /proc/mounts and other relevant procfs files. Signed-off-by: Eric Biggers Signed-off-by: Theodore Ts'o Cc: stable@vger.kernel.org --- fs/ext4/super.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index e41da553b430..a430fb3e9720 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -2145,6 +2145,8 @@ static int _ext4_show_options(struct seq_file *seq, struct super_block *sb, SEQ_OPTS_PRINT("max_dir_size_kb=%u", sbi->s_max_dir_size_kb); if (test_opt(sb, DATA_ERR_ABORT)) SEQ_OPTS_PUTS("data_err=abort"); + if (DUMMY_ENCRYPTION_ENABLED(sbi)) + SEQ_OPTS_PUTS("test_dummy_encryption"); ext4_show_quota_options(seq, sb); return 0; From b3f0907c71e006e12fde74ea9a745b6096b6f90f Mon Sep 17 00:00:00 2001 From: Brijesh Singh Date: Fri, 14 Sep 2018 08:45:58 -0500 Subject: [PATCH 0991/1762] x86/mm: Add .bss..decrypted section to hold shared variables MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit kvmclock defines few static variables which are shared with the hypervisor during the kvmclock initialization. When SEV is active, memory is encrypted with a guest-specific key, and if the guest OS wants to share the memory region with the hypervisor then it must clear the C-bit before sharing it. Currently, we use kernel_physical_mapping_init() to split large pages before clearing the C-bit on shared pages. But it fails when called from the kvmclock initialization (mainly because the memblock allocator is not ready that early during boot). Add a __bss_decrypted section attribute which can be used when defining such shared variable. The so-defined variables will be placed in the .bss..decrypted section. This section will be mapped with C=0 early during boot. The .bss..decrypted section has a big chunk of memory that may be unused when memory encryption is not active, free it when memory encryption is not active. Suggested-by: Thomas Gleixner Signed-off-by: Brijesh Singh Signed-off-by: Thomas Gleixner Cc: Tom Lendacky Cc: Borislav Petkov Cc: "H. Peter Anvin" Cc: Paolo Bonzini Cc: Sean Christopherson Cc: Radim Krčmář Cc: kvm@vger.kernel.org Link: https://lkml.kernel.org/r/1536932759-12905-2-git-send-email-brijesh.singh@amd.com --- arch/x86/include/asm/mem_encrypt.h | 7 +++++++ arch/x86/kernel/head64.c | 16 ++++++++++++++++ arch/x86/kernel/vmlinux.lds.S | 19 +++++++++++++++++++ arch/x86/mm/init.c | 4 ++++ arch/x86/mm/mem_encrypt.c | 24 ++++++++++++++++++++++++ 5 files changed, 70 insertions(+) diff --git a/arch/x86/include/asm/mem_encrypt.h b/arch/x86/include/asm/mem_encrypt.h index c0643831706e..616f8e637bc3 100644 --- a/arch/x86/include/asm/mem_encrypt.h +++ b/arch/x86/include/asm/mem_encrypt.h @@ -48,10 +48,13 @@ int __init early_set_memory_encrypted(unsigned long vaddr, unsigned long size); /* Architecture __weak replacement functions */ void __init mem_encrypt_init(void); +void __init mem_encrypt_free_decrypted_mem(void); bool sme_active(void); bool sev_active(void); +#define __bss_decrypted __attribute__((__section__(".bss..decrypted"))) + #else /* !CONFIG_AMD_MEM_ENCRYPT */ #define sme_me_mask 0ULL @@ -77,6 +80,8 @@ early_set_memory_decrypted(unsigned long vaddr, unsigned long size) { return 0; static inline int __init early_set_memory_encrypted(unsigned long vaddr, unsigned long size) { return 0; } +#define __bss_decrypted + #endif /* CONFIG_AMD_MEM_ENCRYPT */ /* @@ -88,6 +93,8 @@ early_set_memory_encrypted(unsigned long vaddr, unsigned long size) { return 0; #define __sme_pa(x) (__pa(x) | sme_me_mask) #define __sme_pa_nodebug(x) (__pa_nodebug(x) | sme_me_mask) +extern char __start_bss_decrypted[], __end_bss_decrypted[], __start_bss_decrypted_unused[]; + #endif /* __ASSEMBLY__ */ #endif /* __X86_MEM_ENCRYPT_H__ */ diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index 8047379e575a..c16af27eb23f 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -112,6 +112,7 @@ static bool __head check_la57_support(unsigned long physaddr) unsigned long __head __startup_64(unsigned long physaddr, struct boot_params *bp) { + unsigned long vaddr, vaddr_end; unsigned long load_delta, *p; unsigned long pgtable_flags; pgdval_t *pgd; @@ -234,6 +235,21 @@ unsigned long __head __startup_64(unsigned long physaddr, /* Encrypt the kernel and related (if SME is active) */ sme_encrypt_kernel(bp); + /* + * Clear the memory encryption mask from the .bss..decrypted section. + * The bss section will be memset to zero later in the initialization so + * there is no need to zero it after changing the memory encryption + * attribute. + */ + if (mem_encrypt_active()) { + vaddr = (unsigned long)__start_bss_decrypted; + vaddr_end = (unsigned long)__end_bss_decrypted; + for (; vaddr < vaddr_end; vaddr += PMD_SIZE) { + i = pmd_index(vaddr); + pmd[i] -= sme_get_me_mask(); + } + } + /* * Return the SME encryption mask (if SME is active) to be used as a * modifier for the initial pgdir entry programmed into CR3. diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 8bde0a419f86..5dd3317d761f 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -65,6 +65,23 @@ jiffies_64 = jiffies; #define ALIGN_ENTRY_TEXT_BEGIN . = ALIGN(PMD_SIZE); #define ALIGN_ENTRY_TEXT_END . = ALIGN(PMD_SIZE); +/* + * This section contains data which will be mapped as decrypted. Memory + * encryption operates on a page basis. Make this section PMD-aligned + * to avoid splitting the pages while mapping the section early. + * + * Note: We use a separate section so that only this section gets + * decrypted to avoid exposing more than we wish. + */ +#define BSS_DECRYPTED \ + . = ALIGN(PMD_SIZE); \ + __start_bss_decrypted = .; \ + *(.bss..decrypted); \ + . = ALIGN(PAGE_SIZE); \ + __start_bss_decrypted_unused = .; \ + . = ALIGN(PMD_SIZE); \ + __end_bss_decrypted = .; \ + #else #define X86_ALIGN_RODATA_BEGIN @@ -74,6 +91,7 @@ jiffies_64 = jiffies; #define ALIGN_ENTRY_TEXT_BEGIN #define ALIGN_ENTRY_TEXT_END +#define BSS_DECRYPTED #endif @@ -355,6 +373,7 @@ SECTIONS __bss_start = .; *(.bss..page_aligned) *(.bss) + BSS_DECRYPTED . = ALIGN(PAGE_SIZE); __bss_stop = .; } diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 7a8fc26c1115..faca978ebf9d 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -815,10 +815,14 @@ void free_kernel_image_pages(void *begin, void *end) set_memory_np_noalias(begin_ul, len_pages); } +void __weak mem_encrypt_free_decrypted_mem(void) { } + void __ref free_initmem(void) { e820__reallocate_tables(); + mem_encrypt_free_decrypted_mem(); + free_kernel_image_pages(&__init_begin, &__init_end); } diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c index b2de398d1fd3..006f373f54ab 100644 --- a/arch/x86/mm/mem_encrypt.c +++ b/arch/x86/mm/mem_encrypt.c @@ -348,6 +348,30 @@ bool sev_active(void) EXPORT_SYMBOL(sev_active); /* Architecture __weak replacement functions */ +void __init mem_encrypt_free_decrypted_mem(void) +{ + unsigned long vaddr, vaddr_end, npages; + int r; + + vaddr = (unsigned long)__start_bss_decrypted_unused; + vaddr_end = (unsigned long)__end_bss_decrypted; + npages = (vaddr_end - vaddr) >> PAGE_SHIFT; + + /* + * The unused memory range was mapped decrypted, change the encryption + * attribute from decrypted to encrypted before freeing it. + */ + if (mem_encrypt_active()) { + r = set_memory_encrypted(vaddr, npages); + if (r) { + pr_warn("failed to free unused decrypted pages\n"); + return; + } + } + + free_init_pages("unused decrypted", vaddr, vaddr_end); +} + void __init mem_encrypt_init(void) { if (!sme_me_mask) From 6a1cac56f41f9ea94e440dfcc1cac44b41a1b194 Mon Sep 17 00:00:00 2001 From: Brijesh Singh Date: Fri, 14 Sep 2018 08:45:59 -0500 Subject: [PATCH 0992/1762] x86/kvm: Use __bss_decrypted attribute in shared variables MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The recent removal of the memblock dependency from kvmclock caused a SEV guest regression because the wall_clock and hv_clock_boot variables are no longer mapped decrypted when SEV is active. Use the __bss_decrypted attribute to put the static wall_clock and hv_clock_boot in the .bss..decrypted section so that they are mapped decrypted during boot. In the preparatory stage of CPU hotplug, the per-cpu pvclock data pointer assigns either an element of the static array or dynamically allocated memory for the pvclock data pointer. The static array are now mapped decrypted but the dynamically allocated memory is not mapped decrypted. However, when SEV is active this memory range must be mapped decrypted. Add a function which is called after the page allocator is up, and allocate memory for the pvclock data pointers for the all possible cpus. Map this memory range as decrypted when SEV is active. Fixes: 368a540e0232 ("x86/kvmclock: Remove memblock dependency") Suggested-by: Thomas Gleixner Signed-off-by: Brijesh Singh Signed-off-by: Thomas Gleixner Cc: Tom Lendacky Cc: Borislav Petkov Cc: "H. Peter Anvin" Cc: Paolo Bonzini Cc: Sean Christopherson Cc: "Radim Krčmář" Cc: kvm@vger.kernel.org Link: https://lkml.kernel.org/r/1536932759-12905-3-git-send-email-brijesh.singh@amd.com --- arch/x86/kernel/kvmclock.c | 52 +++++++++++++++++++++++++++++++++++--- 1 file changed, 49 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c index 1e6764648af3..013fe3d21dbb 100644 --- a/arch/x86/kernel/kvmclock.c +++ b/arch/x86/kernel/kvmclock.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include @@ -61,9 +62,10 @@ early_param("no-kvmclock-vsyscall", parse_no_kvmclock_vsyscall); (PAGE_SIZE / sizeof(struct pvclock_vsyscall_time_info)) static struct pvclock_vsyscall_time_info - hv_clock_boot[HVC_BOOT_ARRAY_SIZE] __aligned(PAGE_SIZE); -static struct pvclock_wall_clock wall_clock; + hv_clock_boot[HVC_BOOT_ARRAY_SIZE] __bss_decrypted __aligned(PAGE_SIZE); +static struct pvclock_wall_clock wall_clock __bss_decrypted; static DEFINE_PER_CPU(struct pvclock_vsyscall_time_info *, hv_clock_per_cpu); +static struct pvclock_vsyscall_time_info *hvclock_mem; static inline struct pvclock_vcpu_time_info *this_cpu_pvti(void) { @@ -236,6 +238,45 @@ static void kvm_shutdown(void) native_machine_shutdown(); } +static void __init kvmclock_init_mem(void) +{ + unsigned long ncpus; + unsigned int order; + struct page *p; + int r; + + if (HVC_BOOT_ARRAY_SIZE >= num_possible_cpus()) + return; + + ncpus = num_possible_cpus() - HVC_BOOT_ARRAY_SIZE; + order = get_order(ncpus * sizeof(*hvclock_mem)); + + p = alloc_pages(GFP_KERNEL, order); + if (!p) { + pr_warn("%s: failed to alloc %d pages", __func__, (1U << order)); + return; + } + + hvclock_mem = page_address(p); + + /* + * hvclock is shared between the guest and the hypervisor, must + * be mapped decrypted. + */ + if (sev_active()) { + r = set_memory_decrypted((unsigned long) hvclock_mem, + 1UL << order); + if (r) { + __free_pages(p, order); + hvclock_mem = NULL; + pr_warn("kvmclock: set_memory_decrypted() failed. Disabling\n"); + return; + } + } + + memset(hvclock_mem, 0, PAGE_SIZE << order); +} + static int __init kvm_setup_vsyscall_timeinfo(void) { #ifdef CONFIG_X86_64 @@ -250,6 +291,9 @@ static int __init kvm_setup_vsyscall_timeinfo(void) kvm_clock.archdata.vclock_mode = VCLOCK_PVCLOCK; #endif + + kvmclock_init_mem(); + return 0; } early_initcall(kvm_setup_vsyscall_timeinfo); @@ -269,8 +313,10 @@ static int kvmclock_setup_percpu(unsigned int cpu) /* Use the static page for the first CPUs, allocate otherwise */ if (cpu < HVC_BOOT_ARRAY_SIZE) p = &hv_clock_boot[cpu]; + else if (hvclock_mem) + p = hvclock_mem + cpu - HVC_BOOT_ARRAY_SIZE; else - p = kzalloc(sizeof(*p), GFP_KERNEL); + return -ENOMEM; per_cpu(hv_clock_per_cpu, cpu) = p; return p ? 0 : -ENOMEM; From fe18d649891d813964d3aaeebad873f281627fbc Mon Sep 17 00:00:00 2001 From: Li Dongyang Date: Sat, 15 Sep 2018 17:11:25 -0400 Subject: [PATCH 0993/1762] ext4: don't mark mmp buffer head dirty Marking mmp bh dirty before writing it will make writeback pick up mmp block later and submit a write, we don't want the duplicate write as kmmpd thread should have full control of reading and writing the mmp block. Another reason is we will also have random I/O error on the writeback request when blk integrity is enabled, because kmmpd could modify the content of the mmp block(e.g. setting new seq and time) while the mmp block is under I/O requested by writeback. Signed-off-by: Li Dongyang Signed-off-by: Theodore Ts'o Reviewed-by: Andreas Dilger Cc: stable@vger.kernel.org --- fs/ext4/mmp.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c index 39b07c2d3384..2305b4374fd3 100644 --- a/fs/ext4/mmp.c +++ b/fs/ext4/mmp.c @@ -49,7 +49,6 @@ static int write_mmp_block(struct super_block *sb, struct buffer_head *bh) */ sb_start_write(sb); ext4_mmp_csum_set(sb, mmp); - mark_buffer_dirty(bh); lock_buffer(bh); bh->b_end_io = end_buffer_write_sync; get_bh(bh); From f6de298806d9cbc63a4907bca34a06162b9d7dce Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Thu, 13 Sep 2018 20:01:12 -0700 Subject: [PATCH 0994/1762] hwmon: (nct6775) Fix RPM output for fan7 on NCT6796D fan7 on NCT6796D does not have a fan count register; it only has an RPM register. Switch to using RPM registers to read the fan speed for all chips supporting it to solve the problem for good. Reported-by: Robert Kern Cc: Robert Kern Fixes: 81820059a428 ("hwmon: (nct6775) Add support for NCT6796D") Signed-off-by: Guenter Roeck --- drivers/hwmon/nct6775.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index 202a2b422461..af4d8792bbb5 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -502,7 +502,7 @@ static const s8 NCT6779_BEEP_BITS[] = { 30, 31 }; /* intrusion0, intrusion1 */ static const u16 NCT6779_REG_FAN[] = { - 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8, 0x4ba, 0x660 }; + 0x4c0, 0x4c2, 0x4c4, 0x4c6, 0x4c8, 0x4ca, 0x660 }; static const u16 NCT6779_REG_FAN_PULSES[NUM_FAN] = { 0x644, 0x645, 0x646, 0x647, 0x648, 0x649 }; @@ -924,6 +924,11 @@ static unsigned int fan_from_reg16(u16 reg, unsigned int divreg) return 1350000U / (reg << divreg); } +static unsigned int fan_from_reg_rpm(u16 reg, unsigned int divreg) +{ + return reg; +} + static u16 fan_to_reg(u32 fan, unsigned int divreg) { if (!fan) @@ -1284,7 +1289,7 @@ static bool is_word_sized(struct nct6775_data *data, u16 reg) case nct6795: case nct6796: return reg == 0x150 || reg == 0x153 || reg == 0x155 || - ((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x0b) || + (reg & 0xfff0) == 0x4c0 || reg == 0x402 || reg == 0x63a || reg == 0x63c || reg == 0x63e || reg == 0x640 || reg == 0x642 || reg == 0x64a || @@ -3868,7 +3873,7 @@ static int nct6775_probe(struct platform_device *pdev) data->ALARM_BITS = NCT6779_ALARM_BITS; data->BEEP_BITS = NCT6779_BEEP_BITS; - data->fan_from_reg = fan_from_reg13; + data->fan_from_reg = fan_from_reg_rpm; data->fan_from_reg_min = fan_from_reg13; data->target_temp_mask = 0xff; data->tolerance_mask = 0x07; @@ -3949,7 +3954,7 @@ static int nct6775_probe(struct platform_device *pdev) data->ALARM_BITS = NCT6791_ALARM_BITS; data->BEEP_BITS = NCT6779_BEEP_BITS; - data->fan_from_reg = fan_from_reg13; + data->fan_from_reg = fan_from_reg_rpm; data->fan_from_reg_min = fan_from_reg13; data->target_temp_mask = 0xff; data->tolerance_mask = 0x07; From 94dbb63117e82253c9592816aa4465f0a9c94850 Mon Sep 17 00:00:00 2001 From: Toshi Kani Date: Sat, 15 Sep 2018 21:23:41 -0400 Subject: [PATCH 0995/1762] ext4, dax: add ext4_bmap to ext4_dax_aops Ext4 mount path calls .bmap to the journal inode. This currently works for the DAX mount case because ext4_iget() always set 'ext4_da_aops' to any regular files. In preparation to fix ext4_iget() to set 'ext4_dax_aops' for ext4 DAX files, add ext4_bmap() to 'ext4_dax_aops', since bmap works for DAX inodes. Fixes: 5f0663bb4a64 ("ext4, dax: introduce ext4_dax_aops") Signed-off-by: Toshi Kani Signed-off-by: Theodore Ts'o Suggested-by: Jan Kara Cc: stable@vger.kernel.org --- fs/ext4/inode.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 723058bfe43b..5be07f64ae0a 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3951,6 +3951,7 @@ static const struct address_space_operations ext4_dax_aops = { .writepages = ext4_dax_writepages, .direct_IO = noop_direct_IO, .set_page_dirty = noop_set_page_dirty, + .bmap = ext4_bmap, .invalidatepage = noop_invalidatepage, }; From cce6c9f7e6029caee45c459db5b3e78fec6973cb Mon Sep 17 00:00:00 2001 From: Toshi Kani Date: Sat, 15 Sep 2018 21:37:59 -0400 Subject: [PATCH 0996/1762] ext4, dax: set ext4_dax_aops for dax files Sync syscall to DAX file needs to flush processor cache, but it currently does not flush to existing DAX files. This is because 'ext4_da_aops' is set to address_space_operations of existing DAX files, instead of 'ext4_dax_aops', since S_DAX flag is set after ext4_set_aops() in the open path. New file -------- lookup_open ext4_create __ext4_new_inode ext4_set_inode_flags // Set S_DAX flag ext4_set_aops // Set aops to ext4_dax_aops Existing file ------------- lookup_open ext4_lookup ext4_iget ext4_set_aops // Set aops to ext4_da_aops ext4_set_inode_flags // Set S_DAX flag Change ext4_iget() to initialize i_flags before ext4_set_aops(). Fixes: 5f0663bb4a64 ("ext4, dax: introduce ext4_dax_aops") Signed-off-by: Toshi Kani Signed-off-by: Theodore Ts'o Suggested-by: Jan Kara Cc: stable@vger.kernel.org --- fs/ext4/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 5be07f64ae0a..f73f18a68165 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4896,6 +4896,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino) * not initialized on a new filesystem. */ } ei->i_flags = le32_to_cpu(raw_inode->i_flags); + ext4_set_inode_flags(inode); inode->i_blocks = ext4_inode_blocks(raw_inode, ei); ei->i_file_acl = le32_to_cpu(raw_inode->i_file_acl_lo); if (ext4_has_feature_64bit(sb)) @@ -5042,7 +5043,6 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino) goto bad_inode; } brelse(iloc.bh); - ext4_set_inode_flags(inode); unlock_new_inode(inode); return inode; From 8a104f8b5867c682d994ffa7a74093c54469c11f Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sat, 15 Sep 2018 20:26:44 +0200 Subject: [PATCH 0997/1762] Code of Conduct: Let's revamp it. The Code of Conflict is not achieving its implicit goal of fostering civility and the spirit of 'be excellent to each other'. Explicit guidelines have demonstrated success in other projects and other areas of the kernel. Here is a Code of Conduct statement for the wider kernel. It is based on the Contributor Covenant as described at www.contributor-covenant.org From this point forward, we should abide by these rules in order to help make the kernel community a welcoming environment to participate in. Signed-off-by: Chris Mason Signed-off-by: Dan Williams Signed-off-by: Jonathan Corbet Signed-off-by: Olof Johansson Signed-off-by: Steven Rostedt (VMware) Signed-off-by: Greg Kroah-Hartman Signed-off-by: Linus Torvalds --- Documentation/process/code-of-conduct.rst | 81 ++++++++++++++++++++++ Documentation/process/code-of-conflict.rst | 28 -------- Documentation/process/index.rst | 2 +- 3 files changed, 82 insertions(+), 29 deletions(-) create mode 100644 Documentation/process/code-of-conduct.rst delete mode 100644 Documentation/process/code-of-conflict.rst diff --git a/Documentation/process/code-of-conduct.rst b/Documentation/process/code-of-conduct.rst new file mode 100644 index 000000000000..ab7c24b5478c --- /dev/null +++ b/Documentation/process/code-of-conduct.rst @@ -0,0 +1,81 @@ +Contributor Covenant Code of Conduct +++++++++++++++++++++++++++++++++++++ + +Our Pledge +========== + +In the interest of fostering an open and welcoming environment, we as +contributors and maintainers pledge to making participation in our project and +our community a harassment-free experience for everyone, regardless of age, body +size, disability, ethnicity, sex characteristics, gender identity and +expression, level of experience, education, socio-economic status, nationality, +personal appearance, race, religion, or sexual identity and orientation. + +Our Standards +============= + +Examples of behavior that contributes to creating a positive environment +include: + +* Using welcoming and inclusive language +* Being respectful of differing viewpoints and experiences +* Gracefully accepting constructive criticism +* Focusing on what is best for the community +* Showing empathy towards other community members + + +Examples of unacceptable behavior by participants include: + +* The use of sexualized language or imagery and unwelcome sexual attention or + advances +* Trolling, insulting/derogatory comments, and personal or political attacks +* Public or private harassment +* Publishing others’ private information, such as a physical or electronic + address, without explicit permission +* Other conduct which could reasonably be considered inappropriate in a + professional setting + + +Our Responsibilities +==================== + +Maintainers are responsible for clarifying the standards of acceptable behavior +and are expected to take appropriate and fair corrective action in response to +any instances of unacceptable behavior. + +Maintainers have the right and responsibility to remove, edit, or reject +comments, commits, code, wiki edits, issues, and other contributions that are +not aligned to this Code of Conduct, or to ban temporarily or permanently any +contributor for other behaviors that they deem inappropriate, threatening, +offensive, or harmful. + +Scope +===== + +This Code of Conduct applies both within project spaces and in public spaces +when an individual is representing the project or its community. Examples of +representing a project or community include using an official project e-mail +address, posting via an official social media account, or acting as an appointed +representative at an online or offline event. Representation of a project may be +further defined and clarified by project maintainers. + +Enforcement +=========== + +Instances of abusive, harassing, or otherwise unacceptable behavior may be +reported by contacting the Technical Advisory Board (TAB) at +. All complaints will be reviewed and +investigated and will result in a response that is deemed necessary and +appropriate to the circumstances. The TAB is obligated to maintain +confidentiality with regard to the reporter of an incident. Further details of +specific enforcement policies may be posted separately. + +Maintainers who do not follow or enforce the Code of Conduct in good faith may +face temporary or permanent repercussions as determined by other members of the +project’s leadership. + +Attribution +=========== + +This Code of Conduct is adapted from the Contributor Covenant, version 1.4, +available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html diff --git a/Documentation/process/code-of-conflict.rst b/Documentation/process/code-of-conflict.rst deleted file mode 100644 index 47b6de763203..000000000000 --- a/Documentation/process/code-of-conflict.rst +++ /dev/null @@ -1,28 +0,0 @@ -Code of Conflict ----------------- - -The Linux kernel development effort is a very personal process compared -to "traditional" ways of developing software. Your code and ideas -behind it will be carefully reviewed, often resulting in critique and -criticism. The review will almost always require improvements to the -code before it can be included in the kernel. Know that this happens -because everyone involved wants to see the best possible solution for -the overall success of Linux. This development process has been proven -to create the most robust operating system kernel ever, and we do not -want to do anything to cause the quality of submission and eventual -result to ever decrease. - -If however, anyone feels personally abused, threatened, or otherwise -uncomfortable due to this process, that is not acceptable. If so, -please contact the Linux Foundation's Technical Advisory Board at -, or the individual members, and they -will work to resolve the issue to the best of their ability. For more -information on who is on the Technical Advisory Board and what their -role is, please see: - - - http://www.linuxfoundation.org/projects/linux/tab - -As a reviewer of code, please strive to keep things civil and focused on -the technical issues involved. We are all humans, and frustrations can -be high on both sides of the process. Try to keep in mind the immortal -words of Bill and Ted, "Be excellent to each other." diff --git a/Documentation/process/index.rst b/Documentation/process/index.rst index 37bd0628b6ee..9ae3e317bddf 100644 --- a/Documentation/process/index.rst +++ b/Documentation/process/index.rst @@ -20,7 +20,7 @@ Below are the essential guides that every developer should read. :maxdepth: 1 howto - code-of-conflict + code-of-conduct development-process submitting-patches coding-style From 7876320f88802b22d4e2daf7eb027dd14175a0f8 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 16 Sep 2018 11:52:37 -0700 Subject: [PATCH 0998/1762] Linux 4.19-rc4 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index a5ef6818157a..83a03facb5ba 100644 --- a/Makefile +++ b/Makefile @@ -2,7 +2,7 @@ VERSION = 4 PATCHLEVEL = 19 SUBLEVEL = 0 -EXTRAVERSION = -rc3 +EXTRAVERSION = -rc4 NAME = Merciless Moray # *DOCUMENTATION* From edf2ef7242805e53ec2e0841db26e06d8bc7da70 Mon Sep 17 00:00:00 2001 From: Jongsung Kim Date: Thu, 13 Sep 2018 18:32:21 +0900 Subject: [PATCH 0999/1762] stmmac: fix valid numbers of unicast filter entries Synopsys DWC Ethernet MAC can be configured to have 1..32, 64, or 128 unicast filter entries. (Table 7-8 MAC Address Registers from databook) Fix dwmac1000_validate_ucast_entries() to accept values between 1 and 32 in addition. Signed-off-by: Jongsung Kim Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index 3609c7b696c7..2b800ce1d5bf 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -67,7 +67,7 @@ static int dwmac1000_validate_mcast_bins(int mcast_bins) * Description: * This function validates the number of Unicast address entries supported * by a particular Synopsys 10/100/1000 controller. The Synopsys controller - * supports 1, 32, 64, or 128 Unicast filter entries for it's Unicast filter + * supports 1..32, 64, or 128 Unicast filter entries for it's Unicast filter * logic. This function validates a valid, supported configuration is * selected, and defaults to 1 Unicast address if an unsupported * configuration is selected. @@ -77,8 +77,7 @@ static int dwmac1000_validate_ucast_entries(int ucast_entries) int x = ucast_entries; switch (x) { - case 1: - case 32: + case 1 ... 32: case 64: case 128: break; From 2b5a921740a55c00223a797d075b9c77c42cb171 Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Thu, 13 Sep 2018 16:27:20 +0200 Subject: [PATCH 1000/1762] udp4: fix IP_CMSG_CHECKSUM for connected sockets commit 2abb7cdc0dc8 ("udp: Add support for doing checksum unnecessary conversion") left out the early demux path for connected sockets. As a result IP_CMSG_CHECKSUM gives wrong values for such socket when GRO is not enabled/available. This change addresses the issue by moving the csum conversion to a common helper and using such helper in both the default and the early demux rx path. Fixes: 2abb7cdc0dc8 ("udp: Add support for doing checksum unnecessary conversion") Signed-off-by: Paolo Abeni Signed-off-by: David S. Miller --- net/ipv4/udp.c | 49 ++++++++++++++++++++++++++----------------------- 1 file changed, 26 insertions(+), 23 deletions(-) diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index f4e35b2ff8b8..7d69dd6fa7e8 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2124,6 +2124,28 @@ static inline int udp4_csum_init(struct sk_buff *skb, struct udphdr *uh, inet_compute_pseudo); } +/* wrapper for udp_queue_rcv_skb tacking care of csum conversion and + * return code conversion for ip layer consumption + */ +static int udp_unicast_rcv_skb(struct sock *sk, struct sk_buff *skb, + struct udphdr *uh) +{ + int ret; + + if (inet_get_convert_csum(sk) && uh->check && !IS_UDPLITE(sk)) + skb_checksum_try_convert(skb, IPPROTO_UDP, uh->check, + inet_compute_pseudo); + + ret = udp_queue_rcv_skb(sk, skb); + + /* a return value > 0 means to resubmit the input, but + * it wants the return to be -protocol, or 0 + */ + if (ret > 0) + return -ret; + return 0; +} + /* * All we need to do is get the socket, and then do a checksum. */ @@ -2170,14 +2192,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, if (unlikely(sk->sk_rx_dst != dst)) udp_sk_rx_dst_set(sk, dst); - ret = udp_queue_rcv_skb(sk, skb); + ret = udp_unicast_rcv_skb(sk, skb, uh); sock_put(sk); - /* a return value > 0 means to resubmit the input, but - * it wants the return to be -protocol, or 0 - */ - if (ret > 0) - return -ret; - return 0; + return ret; } if (rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST)) @@ -2185,22 +2202,8 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, saddr, daddr, udptable, proto); sk = __udp4_lib_lookup_skb(skb, uh->source, uh->dest, udptable); - if (sk) { - int ret; - - if (inet_get_convert_csum(sk) && uh->check && !IS_UDPLITE(sk)) - skb_checksum_try_convert(skb, IPPROTO_UDP, uh->check, - inet_compute_pseudo); - - ret = udp_queue_rcv_skb(sk, skb); - - /* a return value > 0 means to resubmit the input, but - * it wants the return to be -protocol, or 0 - */ - if (ret > 0) - return -ret; - return 0; - } + if (sk) + return udp_unicast_rcv_skb(sk, skb, uh); if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) goto drop; From eb63f2964dbe36f26deac77d3016791675821ded Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Thu, 13 Sep 2018 16:27:21 +0200 Subject: [PATCH 1001/1762] udp6: add missing checks on edumux packet processing Currently the UDPv6 early demux rx code path lacks some mandatory checks, already implemented into the normal RX code path - namely the checksum conversion and no_check6_rx check. Similar to the previous commit, we move the common processing to an UDPv6 specific helper and call it from both edemux code path and normal code path. In respect to the UDPv4, we need to add an explicit check for non zero csum according to no_check6_rx value. Reported-by: Jianlin Shi Suggested-by: Xin Long Fixes: c9f2c1ae123a ("udp6: fix socket leak on early demux") Fixes: 2abb7cdc0dc8 ("udp: Add support for doing checksum unnecessary conversion") Signed-off-by: Paolo Abeni Signed-off-by: David S. Miller --- net/ipv6/udp.c | 65 ++++++++++++++++++++++++++++---------------------- 1 file changed, 37 insertions(+), 28 deletions(-) diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 83f4c77c79d8..28c4aa5078fc 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -752,6 +752,28 @@ static void udp6_sk_rx_dst_set(struct sock *sk, struct dst_entry *dst) } } +/* wrapper for udp_queue_rcv_skb tacking care of csum conversion and + * return code conversion for ip layer consumption + */ +static int udp6_unicast_rcv_skb(struct sock *sk, struct sk_buff *skb, + struct udphdr *uh) +{ + int ret; + + if (inet_get_convert_csum(sk) && uh->check && !IS_UDPLITE(sk)) + skb_checksum_try_convert(skb, IPPROTO_UDP, uh->check, + ip6_compute_pseudo); + + ret = udpv6_queue_rcv_skb(sk, skb); + + /* a return value > 0 means to resubmit the input, but + * it wants the return to be -protocol, or 0 + */ + if (ret > 0) + return -ret; + return 0; +} + int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, int proto) { @@ -803,13 +825,14 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, if (unlikely(sk->sk_rx_dst != dst)) udp6_sk_rx_dst_set(sk, dst); - ret = udpv6_queue_rcv_skb(sk, skb); - sock_put(sk); + if (!uh->check && !udp_sk(sk)->no_check6_rx) { + sock_put(sk); + goto report_csum_error; + } - /* a return value > 0 means to resubmit the input */ - if (ret > 0) - return ret; - return 0; + ret = udp6_unicast_rcv_skb(sk, skb, uh); + sock_put(sk); + return ret; } /* @@ -822,30 +845,13 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, /* Unicast */ sk = __udp6_lib_lookup_skb(skb, uh->source, uh->dest, udptable); if (sk) { - int ret; - - if (!uh->check && !udp_sk(sk)->no_check6_rx) { - udp6_csum_zero_error(skb); - goto csum_error; - } - - if (inet_get_convert_csum(sk) && uh->check && !IS_UDPLITE(sk)) - skb_checksum_try_convert(skb, IPPROTO_UDP, uh->check, - ip6_compute_pseudo); - - ret = udpv6_queue_rcv_skb(sk, skb); - - /* a return value > 0 means to resubmit the input */ - if (ret > 0) - return ret; - - return 0; + if (!uh->check && !udp_sk(sk)->no_check6_rx) + goto report_csum_error; + return udp6_unicast_rcv_skb(sk, skb, uh); } - if (!uh->check) { - udp6_csum_zero_error(skb); - goto csum_error; - } + if (!uh->check) + goto report_csum_error; if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) goto discard; @@ -866,6 +872,9 @@ short_packet: ulen, skb->len, daddr, ntohs(uh->dest)); goto discard; + +report_csum_error: + udp6_csum_zero_error(skb); csum_error: __UDP6_INC_STATS(net, UDP_MIB_CSUMERRORS, proto == IPPROTO_UDPLITE); discard: From 4bf9ffa0fb5744ed40d7348c24fa9ae398b1d603 Mon Sep 17 00:00:00 2001 From: Toshiaki Makita Date: Fri, 14 Sep 2018 13:33:44 +0900 Subject: [PATCH 1002/1762] veth: Orphan skb before GRO GRO expects skbs not to be owned by sockets, but when XDP is enabled veth passed skbs owned by sockets. It caused corrupted sk_wmem_alloc. Paolo Abeni reported the following splat: [ 362.098904] refcount_t overflow at skb_set_owner_w+0x5e/0xa0 in iperf3[1644], uid/euid: 0/0 [ 362.108239] WARNING: CPU: 0 PID: 1644 at kernel/panic.c:648 refcount_error_report+0xa0/0xa4 [ 362.117547] Modules linked in: tcp_diag inet_diag veth intel_rapl sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel intel_cstate intel_uncore intel_rapl_perf ipmi_ssif iTCO_wdt sg ipmi_si iTCO_vendor_support ipmi_devintf mxm_wmi ipmi_msghandler pcspkr dcdbas mei_me wmi mei lpc_ich acpi_power_meter pcc_cpufreq xfs libcrc32c sd_mod mgag200 drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ixgbe igb ttm ahci mdio libahci ptp crc32c_intel drm pps_core libata i2c_algo_bit dca dm_mirror dm_region_hash dm_log dm_mod [ 362.176622] CPU: 0 PID: 1644 Comm: iperf3 Not tainted 4.19.0-rc2.vanilla+ #2025 [ 362.184777] Hardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.1.7 06/16/2016 [ 362.193124] RIP: 0010:refcount_error_report+0xa0/0xa4 [ 362.198758] Code: 08 00 00 48 8b 95 80 00 00 00 49 8d 8c 24 80 0a 00 00 41 89 c1 44 89 2c 24 48 89 de 48 c7 c7 18 4d e7 9d 31 c0 e8 30 fa ff ff <0f> 0b eb 88 0f 1f 44 00 00 55 48 89 e5 41 56 41 55 41 54 49 89 fc [ 362.219711] RSP: 0018:ffff9ee6ff603c20 EFLAGS: 00010282 [ 362.225538] RAX: 0000000000000000 RBX: ffffffff9de83e10 RCX: 0000000000000000 [ 362.233497] RDX: 0000000000000001 RSI: ffff9ee6ff6167d8 RDI: ffff9ee6ff6167d8 [ 362.241457] RBP: ffff9ee6ff603d78 R08: 0000000000000490 R09: 0000000000000004 [ 362.249416] R10: 0000000000000000 R11: ffff9ee6ff603990 R12: ffff9ee664b94500 [ 362.257377] R13: 0000000000000000 R14: 0000000000000004 R15: ffffffff9de615f9 [ 362.265337] FS: 00007f1d22d28740(0000) GS:ffff9ee6ff600000(0000) knlGS:0000000000000000 [ 362.274363] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 362.280773] CR2: 00007f1d222f35d0 CR3: 0000001fddfec003 CR4: 00000000001606f0 [ 362.288733] Call Trace: [ 362.291459] [ 362.293702] ex_handler_refcount+0x4e/0x80 [ 362.298269] fixup_exception+0x35/0x40 [ 362.302451] do_trap+0x109/0x150 [ 362.306048] do_error_trap+0xd5/0x130 [ 362.315766] invalid_op+0x14/0x20 [ 362.319460] RIP: 0010:skb_set_owner_w+0x5e/0xa0 [ 362.324512] Code: ef ff ff 74 49 48 c7 43 60 20 7b 4a 9d 8b 85 f4 01 00 00 85 c0 75 16 8b 83 e0 00 00 00 f0 01 85 44 01 00 00 0f 88 d8 23 16 00 <5b> 5d c3 80 8b 91 00 00 00 01 8b 85 f4 01 00 00 89 83 a4 00 00 00 [ 362.345465] RSP: 0018:ffff9ee6ff603e20 EFLAGS: 00010a86 [ 362.351291] RAX: 0000000000001100 RBX: ffff9ee65deec700 RCX: ffff9ee65e829244 [ 362.359250] RDX: 0000000000000100 RSI: ffff9ee65e829100 RDI: ffff9ee65deec700 [ 362.367210] RBP: ffff9ee65e829100 R08: 000000000002a380 R09: 0000000000000000 [ 362.375169] R10: 0000000000000002 R11: fffff1a4bf77bb00 R12: ffffc0754661d000 [ 362.383130] R13: ffff9ee65deec200 R14: ffff9ee65f597000 R15: 00000000000000aa [ 362.391092] veth_xdp_rcv+0x4e4/0x890 [veth] [ 362.399357] veth_poll+0x4d/0x17a [veth] [ 362.403731] net_rx_action+0x2af/0x3f0 [ 362.407912] __do_softirq+0xdd/0x29e [ 362.411897] do_softirq_own_stack+0x2a/0x40 [ 362.416561] [ 362.418899] do_softirq+0x4b/0x70 [ 362.422594] __local_bh_enable_ip+0x50/0x60 [ 362.427258] ip_finish_output2+0x16a/0x390 [ 362.431824] ip_output+0x71/0xe0 [ 362.440670] __tcp_transmit_skb+0x583/0xab0 [ 362.445333] tcp_write_xmit+0x247/0xfb0 [ 362.449609] __tcp_push_pending_frames+0x2d/0xd0 [ 362.454760] tcp_sendmsg_locked+0x857/0xd30 [ 362.459424] tcp_sendmsg+0x27/0x40 [ 362.463216] sock_sendmsg+0x36/0x50 [ 362.467104] sock_write_iter+0x87/0x100 [ 362.471382] __vfs_write+0x112/0x1a0 [ 362.475369] vfs_write+0xad/0x1a0 [ 362.479062] ksys_write+0x52/0xc0 [ 362.482759] do_syscall_64+0x5b/0x180 [ 362.486841] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 362.492473] RIP: 0033:0x7f1d22293238 [ 362.496458] Code: 89 02 48 c7 c0 ff ff ff ff eb b3 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8d 05 c5 54 2d 00 8b 00 85 c0 75 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 41 54 49 89 d4 55 [ 362.517409] RSP: 002b:00007ffebaef8008 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 362.525855] RAX: ffffffffffffffda RBX: 0000000000002800 RCX: 00007f1d22293238 [ 362.533816] RDX: 0000000000002800 RSI: 00007f1d22d36000 RDI: 0000000000000005 [ 362.541775] RBP: 00007f1d22d36000 R08: 00000002db777a30 R09: 0000562b70712b20 [ 362.549734] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 362.557693] R13: 0000000000002800 R14: 00007ffebaef8060 R15: 0000562b70712260 In order to avoid this, orphan the skb before entering GRO. Fixes: 948d4f214fde ("veth: Add driver XDP") Reported-by: Paolo Abeni Signed-off-by: Toshiaki Makita Tested-by: Paolo Abeni Signed-off-by: David S. Miller --- drivers/net/veth.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 8d679c8b7f25..41a00cd76955 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -463,6 +463,8 @@ static struct sk_buff *veth_xdp_rcv_skb(struct veth_rq *rq, struct sk_buff *skb, int mac_len, delta, off; struct xdp_buff xdp; + skb_orphan(skb); + rcu_read_lock(); xdp_prog = rcu_dereference(rq->xdp_prog); if (unlikely(!xdp_prog)) { @@ -508,8 +510,6 @@ static struct sk_buff *veth_xdp_rcv_skb(struct veth_rq *rq, struct sk_buff *skb, skb_copy_header(nskb, skb); head_off = skb_headroom(nskb) - skb_headroom(skb); skb_headers_offset_update(nskb, head_off); - if (skb->sk) - skb_set_owner_w(nskb, skb->sk); consume_skb(skb); skb = nskb; } From f14040bca89258b8a1c71e2112e430462172ce93 Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Thu, 13 Sep 2018 15:33:47 +1000 Subject: [PATCH 1003/1762] KVM: PPC: Book3S HV: Fix guest r11 corruption with POWER9 TM workarounds When we come into the softpatch handler (0x1500), we use r11 to store the HSRR0 for later use by the denorm handler. We also use the softpatch handler for the TM workarounds for POWER9. Unfortunately, in kvmppc_interrupt_hv we later store r11 out to the vcpu assuming it's still what we got from userspace. This causes r11 to be corrupted in the VCPU and hence when we restore the guest, we get a corrupted r11. We've seen this when running TM tests inside guests on P9. This fixes the problem by only touching r11 in the denorm case. Fixes: 4bb3c7a020 ("KVM: PPC: Book3S HV: Work around transactional memory bugs in POWER9") Cc: # 4.17+ Test-by: Suraj Jitindar Singh Reviewed-by: Paul Mackerras Signed-off-by: Michael Neuling Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/exceptions-64s.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index ea04dfb8c092..2d8fc8c9da7a 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -1314,9 +1314,7 @@ EXC_REAL_BEGIN(denorm_exception_hv, 0x1500, 0x100) #ifdef CONFIG_PPC_DENORMALISATION mfspr r10,SPRN_HSRR1 - mfspr r11,SPRN_HSRR0 /* save HSRR0 */ andis. r10,r10,(HSRR1_DENORM)@h /* denorm? */ - addi r11,r11,-4 /* HSRR0 is next instruction */ bne+ denorm_assist #endif @@ -1382,6 +1380,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S) */ XVCPSGNDP32(32) denorm_done: + mfspr r11,SPRN_HSRR0 + subi r11,r11,4 mtspr SPRN_HSRR0,r11 mtcrf 0x80,r9 ld r9,PACA_EXGEN+EX_R9(r13) From d792d4c4fc866ae224b0b0ca2aabd87d23b4d6cc Mon Sep 17 00:00:00 2001 From: Laura Abbott Date: Tue, 11 Sep 2018 12:22:25 -0700 Subject: [PATCH 1004/1762] scsi: ibmvscsis: Fix a stringop-overflow warning There's currently a warning about string overflow with strncat: drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c: In function 'ibmvscsis_probe': drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:3479:2: error: 'strncat' specified bound 64 equals destination size [-Werror=stringop-overflow=] strncat(vscsi->eye, vdev->name, MAX_EYE); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Switch to a single snprintf instead of a strcpy + strcat to handle this cleanly. Signed-off-by: Laura Abbott Suggested-by: Kees Cook Signed-off-by: Martin K. Petersen --- drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c index fac377320158..b3a029ad07cd 100644 --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c @@ -3474,8 +3474,7 @@ static int ibmvscsis_probe(struct vio_dev *vdev, vscsi->dds.window[LOCAL].liobn, vscsi->dds.window[REMOTE].liobn); - strcpy(vscsi->eye, "VSCSI "); - strncat(vscsi->eye, vdev->name, MAX_EYE); + snprintf(vscsi->eye, sizeof(vscsi->eye), "VSCSI %s", vdev->name); vscsi->dds.unit_id = vdev->unit_address; strncpy(vscsi->dds.partition_name, partition_name, From adad633af7b970bfa5dd1b624a4afc83cac9b235 Mon Sep 17 00:00:00 2001 From: Laura Abbott Date: Tue, 11 Sep 2018 12:22:26 -0700 Subject: [PATCH 1005/1762] scsi: ibmvscsis: Ensure partition name is properly NUL terminated While reviewing another part of the code, Kees noticed that the strncpy of the partition name might not always be NUL terminated. Switch to using strscpy which does this safely. Reported-by: Kees Cook Signed-off-by: Laura Abbott Reviewed-by: Kees Cook Signed-off-by: Martin K. Petersen --- drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c index b3a029ad07cd..f42a619198c4 100644 --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c @@ -3477,7 +3477,7 @@ static int ibmvscsis_probe(struct vio_dev *vdev, snprintf(vscsi->eye, sizeof(vscsi->eye), "VSCSI %s", vdev->name); vscsi->dds.unit_id = vdev->unit_address; - strncpy(vscsi->dds.partition_name, partition_name, + strscpy(vscsi->dds.partition_name, partition_name, sizeof(vscsi->dds.partition_name)); vscsi->dds.partition_num = partition_number; From 83e32a5910772e1475d3640a429b7686695f04d1 Mon Sep 17 00:00:00 2001 From: Xuewei Zhang Date: Thu, 6 Sep 2018 13:37:19 -0700 Subject: [PATCH 1006/1762] scsi: sd: Contribute to randomness when running rotational device MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Currently a scsi device won't contribute to kernel randomness when it uses blk-mq. Since we commonly use scsi on rotational device with blk-mq, it make sense to keep contributing to kernel randomness in these cases. This is especially important for virtual machines. commit b5b6e8c8d3b4 ("scsi: virtio_scsi: fix IO hang caused by automatic irq vector affinity") made all virtio-scsi device to use blk-mq, which does not contribute to randomness today. So for a virtual machine only having virtio-scsi disk (which is common), it will simple stop getting randomness from its disks in today's implementation. With this patch, if the above VM has rotational virtio-scsi device, then it can still benefit from the entropy generated from the disk. Reported-by: Xuewei Zhang Signed-off-by: Xuewei Zhang Reviewed-by: Ming Lei Reviewed-by: Maciej Żenczykowski Reviewed-by: Bart Van Assche Signed-off-by: Martin K. Petersen --- drivers/scsi/sd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index b79b366a94f7..5e4f10d28065 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2959,6 +2959,9 @@ static void sd_read_block_characteristics(struct scsi_disk *sdkp) if (rot == 1) { blk_queue_flag_set(QUEUE_FLAG_NONROT, q); blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, q); + } else { + blk_queue_flag_clear(QUEUE_FLAG_NONROT, q); + blk_queue_flag_set(QUEUE_FLAG_ADD_RANDOM, q); } if (sdkp->device->type == TYPE_ZBC) { From 55066354285b36ee09dc50e2527f43a97c567177 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Mon, 17 Sep 2018 05:23:58 -0700 Subject: [PATCH 1007/1762] hwmon: (nct6775) Use different register to get fan RPM for fan7 The documented register to retrieve the fan RPM for fan7 is found to be unreliable at least with NCT6796D revision 3. Let's use register 0x4ce instead. This is undocumented for NCT6796D, but documented for NCT6797D and NCT6798D and known to be working. Reported-by: Robert Kern Cc: Robert Kern Fixes: 81820059a428 ("hwmon: (nct6775) Add support for NCT6796D") Signed-off-by: Guenter Roeck --- drivers/hwmon/nct6775.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index af4d8792bbb5..78603b78cf41 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -502,7 +502,7 @@ static const s8 NCT6779_BEEP_BITS[] = { 30, 31 }; /* intrusion0, intrusion1 */ static const u16 NCT6779_REG_FAN[] = { - 0x4c0, 0x4c2, 0x4c4, 0x4c6, 0x4c8, 0x4ca, 0x660 }; + 0x4c0, 0x4c2, 0x4c4, 0x4c6, 0x4c8, 0x4ca, 0x4ce }; static const u16 NCT6779_REG_FAN_PULSES[NUM_FAN] = { 0x644, 0x645, 0x646, 0x647, 0x648, 0x649 }; @@ -1293,7 +1293,7 @@ static bool is_word_sized(struct nct6775_data *data, u16 reg) reg == 0x402 || reg == 0x63a || reg == 0x63c || reg == 0x63e || reg == 0x640 || reg == 0x642 || reg == 0x64a || - reg == 0x64c || reg == 0x660 || + reg == 0x64c || reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 || reg == 0x7b || reg == 0x7d; } From be1277f5eb17a2e5788139eabb0b53dd04c695f3 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Mon, 16 Jul 2018 12:58:33 +0200 Subject: [PATCH 1008/1762] nvme: count all ANA groups for ANA Log page When issuing a short read on the ANA log page the number of groups should not change, even though the final returned data might contain less groups than that number. Signed-off-by: Hannes Reinecke [switched to a for loop] Signed-off-by: Christoph Hellwig --- drivers/nvme/target/admin-cmd.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c index a21caea1e080..2008fa62a373 100644 --- a/drivers/nvme/target/admin-cmd.c +++ b/drivers/nvme/target/admin-cmd.c @@ -245,6 +245,10 @@ static void nvmet_execute_get_log_page_ana(struct nvmet_req *req) offset += len; ngrps++; } + for ( ; grpid <= NVMET_MAX_ANAGRPS; grpid++) { + if (nvmet_ana_group_enabled[grpid]) + ngrps++; + } hdr.chgcnt = cpu_to_le64(nvmet_ana_chgcnt); hdr.ngrps = cpu_to_le16(ngrps); From 3341ba9f0f2637a51738ef5de5114e13a1cd3eca Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Mon, 3 Sep 2018 12:26:21 +0200 Subject: [PATCH 1009/1762] mt76x0: fix remove_interface We wrongly use wcid_mask instead of vif_mask. This creates problems when the interface is removed more than 8 times, for example with iw: iw dev interface add type iw dev del This caused 'ifconfig up' to fail with error: SIOCSIFFLAGS: No space left on device Fixes: 95e444098a7b ("mt76x0: main file") Reported-and-tested-by: Sid Hayn Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo --- drivers/net/wireless/mediatek/mt76/mt76x0/main.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/main.c b/drivers/net/wireless/mediatek/mt76/mt76x0/main.c index cf6ffb1ba4a2..22bc9d368728 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/main.c @@ -77,9 +77,8 @@ static void mt76x0_remove_interface(struct ieee80211_hw *hw, { struct mt76x0_dev *dev = hw->priv; struct mt76_vif *mvif = (struct mt76_vif *) vif->drv_priv; - unsigned int wcid = mvif->group_wcid.idx; - dev->wcid_mask[wcid / BITS_PER_LONG] &= ~BIT(wcid % BITS_PER_LONG); + dev->vif_mask &= ~BIT(mvif->idx); } static int mt76x0_config(struct ieee80211_hw *hw, u32 changed) From 85516a9881a31e2c7a8d10f4697f3adcccc7cef1 Mon Sep 17 00:00:00 2001 From: Miquel Raynal Date: Fri, 7 Sep 2018 16:35:54 +0200 Subject: [PATCH 1010/1762] mtd: partitions: fix unbalanced of_node_get/put() While at first mtd_part_of_parse() would just call of_get_chil_by_name(), it has been patched to deal with sub-partitions and will now directly manipulate the node returned by mtd_get_of_node() if the MTD device is a partition. A of_node_put() was a bit below in the code, to balance the of_get_child_by_name(). However, despite its name, mtd_get_of_node() does not take a reference on the OF node. It is a simple helper hiding some pointer logic to retrieve the OF node related to an MTD device. The direct effect of such unbalanced reference counting is visible by rmmod'ing any module that would have added MTD partitions: OF: ERROR: Bad of_node_put() on As it seems normal to get a reference on the OF node during the of_property_for_each_string() that follows, add a call to of_node_get() when relevant. Fixes: 76a832254ab0 ("mtd: partitions: use DT info for parsing partitions with "compatible" prop") Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal Signed-off-by: Boris Brezillon --- drivers/mtd/mtdpart.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 52e2cb35fc79..99c460facd5e 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -873,8 +873,11 @@ static int mtd_part_of_parse(struct mtd_info *master, int ret, err = 0; np = mtd_get_of_node(master); - if (!mtd_is_partition(master)) + if (mtd_is_partition(master)) + of_node_get(np); + else np = of_get_child_by_name(np, "partitions"); + of_property_for_each_string(np, "compatible", prop, compat) { parser = mtd_part_get_compatible_parser(compat); if (!parser) From f025571e96caa95ffc3c1792f762a584893de582 Mon Sep 17 00:00:00 2001 From: Corentin Labbe Date: Fri, 14 Sep 2018 11:20:07 +0000 Subject: [PATCH 1011/1762] net: ethernet: ti: add missing GENERIC_ALLOCATOR dependency This patch mades TI_DAVINCI_CPDMA select GENERIC_ALLOCATOR. without that, the following sparc64 build failure happen drivers/net/ethernet/ti/davinci_cpdma.o: In function `cpdma_check_free_tx_desc': (.text+0x278): undefined reference to `gen_pool_avail' drivers/net/ethernet/ti/davinci_cpdma.o: In function `cpdma_chan_submit': (.text+0x340): undefined reference to `gen_pool_alloc' (.text+0x5c4): undefined reference to `gen_pool_free' drivers/net/ethernet/ti/davinci_cpdma.o: In function `__cpdma_chan_free': davinci_cpdma.c:(.text+0x64c): undefined reference to `gen_pool_free' drivers/net/ethernet/ti/davinci_cpdma.o: In function `cpdma_desc_pool_destroy.isra.6': davinci_cpdma.c:(.text+0x17ac): undefined reference to `gen_pool_size' davinci_cpdma.c:(.text+0x17b8): undefined reference to `gen_pool_avail' davinci_cpdma.c:(.text+0x1824): undefined reference to `gen_pool_size' davinci_cpdma.c:(.text+0x1830): undefined reference to `gen_pool_avail' drivers/net/ethernet/ti/davinci_cpdma.o: In function `cpdma_ctlr_create': (.text+0x19f8): undefined reference to `devm_gen_pool_create' (.text+0x1a90): undefined reference to `gen_pool_add_virt' Makefile:1011: recipe for target 'vmlinux' failed Signed-off-by: Corentin Labbe Signed-off-by: David S. Miller --- drivers/net/ethernet/ti/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig index 9263d638bd6d..f932923f7d56 100644 --- a/drivers/net/ethernet/ti/Kconfig +++ b/drivers/net/ethernet/ti/Kconfig @@ -41,6 +41,7 @@ config TI_DAVINCI_MDIO config TI_DAVINCI_CPDMA tristate "TI DaVinci CPDMA Support" depends on ARCH_DAVINCI || ARCH_OMAP2PLUS || COMPILE_TEST + select GENERIC_ALLOCATOR ---help--- This driver supports TI's DaVinci CPDMA dma engine. From 8540827ebac6b654ab2f69c8fbce9e4fbd6304a0 Mon Sep 17 00:00:00 2001 From: Guillaume Nault Date: Fri, 14 Sep 2018 16:28:05 +0200 Subject: [PATCH 1012/1762] pppoe: fix reception of frames with no mac header pppoe_rcv() needs to look back at the Ethernet header in order to lookup the PPPoE session. Therefore we need to ensure that the mac header is big enough to contain an Ethernet header. Otherwise eth_hdr(skb)->h_source might access invalid data. ================================================================== BUG: KMSAN: uninit-value in __get_item drivers/net/ppp/pppoe.c:172 [inline] BUG: KMSAN: uninit-value in get_item drivers/net/ppp/pppoe.c:236 [inline] BUG: KMSAN: uninit-value in pppoe_rcv+0xcef/0x10e0 drivers/net/ppp/pppoe.c:450 CPU: 0 PID: 4543 Comm: syz-executor355 Not tainted 4.16.0+ #87 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:53 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:683 __get_item drivers/net/ppp/pppoe.c:172 [inline] get_item drivers/net/ppp/pppoe.c:236 [inline] pppoe_rcv+0xcef/0x10e0 drivers/net/ppp/pppoe.c:450 __netif_receive_skb_core+0x47df/0x4a90 net/core/dev.c:4562 __netif_receive_skb net/core/dev.c:4627 [inline] netif_receive_skb_internal+0x49d/0x630 net/core/dev.c:4701 netif_receive_skb+0x230/0x240 net/core/dev.c:4725 tun_rx_batched drivers/net/tun.c:1555 [inline] tun_get_user+0x740f/0x7c60 drivers/net/tun.c:1962 tun_chr_write_iter+0x1d4/0x330 drivers/net/tun.c:1990 call_write_iter include/linux/fs.h:1782 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x7fb/0x9f0 fs/read_write.c:482 vfs_write+0x463/0x8d0 fs/read_write.c:544 SYSC_write+0x172/0x360 fs/read_write.c:589 SyS_write+0x55/0x80 fs/read_write.c:581 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 RIP: 0033:0x4447c9 RSP: 002b:00007fff64c8fc28 EFLAGS: 00000297 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004447c9 RDX: 000000000000fd87 RSI: 0000000020000600 RDI: 0000000000000004 RBP: 00000000006cf018 R08: 00007fff64c8fda8 R09: 00007fff00006bda R10: 0000000000005fe7 R11: 0000000000000297 R12: 00000000004020d0 R13: 0000000000402160 R14: 0000000000000000 R15: 0000000000000000 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline] kmsan_internal_poison_shadow+0xb8/0x1b0 mm/kmsan/kmsan.c:188 kmsan_kmalloc+0x94/0x100 mm/kmsan/kmsan.c:314 kmsan_slab_alloc+0x11/0x20 mm/kmsan/kmsan.c:321 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc_node mm/slub.c:2737 [inline] __kmalloc_node_track_caller+0xaed/0x11c0 mm/slub.c:4369 __kmalloc_reserve net/core/skbuff.c:138 [inline] __alloc_skb+0x2cf/0x9f0 net/core/skbuff.c:206 alloc_skb include/linux/skbuff.h:984 [inline] alloc_skb_with_frags+0x1d4/0xb20 net/core/skbuff.c:5234 sock_alloc_send_pskb+0xb56/0x1190 net/core/sock.c:2085 tun_alloc_skb drivers/net/tun.c:1532 [inline] tun_get_user+0x2242/0x7c60 drivers/net/tun.c:1829 tun_chr_write_iter+0x1d4/0x330 drivers/net/tun.c:1990 call_write_iter include/linux/fs.h:1782 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x7fb/0x9f0 fs/read_write.c:482 vfs_write+0x463/0x8d0 fs/read_write.c:544 SYSC_write+0x172/0x360 fs/read_write.c:589 SyS_write+0x55/0x80 fs/read_write.c:581 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 ================================================================== Fixes: 224cf5ad14c0 ("ppp: Move the PPP drivers") Reported-by: syzbot+f5f6080811c849739212@syzkaller.appspotmail.com Signed-off-by: Guillaume Nault Signed-off-by: David S. Miller --- drivers/net/ppp/pppoe.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c index ce61231e96ea..62dc564b251d 100644 --- a/drivers/net/ppp/pppoe.c +++ b/drivers/net/ppp/pppoe.c @@ -429,6 +429,9 @@ static int pppoe_rcv(struct sk_buff *skb, struct net_device *dev, if (!skb) goto out; + if (skb_mac_header_len(skb) < ETH_HLEN) + goto drop; + if (!pskb_may_pull(skb, sizeof(struct pppoe_hdr))) goto drop; From 41948ccb4a856dddacfbd4d789d4fa8663fe41bb Mon Sep 17 00:00:00 2001 From: Antoine Tenart Date: Fri, 14 Sep 2018 16:56:35 +0200 Subject: [PATCH 1013/1762] net: mvpp2: let phylink manage the carrier state Net drivers using phylink shouldn't mess with the link carrier themselves and should let phylink manage it. The mvpp2 driver wasn't following this best practice as the mac_config() function made calls to change the link carrier state. This led to wrongly reported carrier link state which then triggered other issues. This patch fixes this behaviour. But the PPv2 driver relied on this misbehaviour in two cases: for fixed links and when not using phylink (ACPI mode). The later was fixed by adding an explicit call to link_up(), which when the ACPI mode will use phylink should be removed. The fixed link case was relying on the mac_config() function to set the link up, as we found an issue in phylink_start() which assumes the carrier is off. If not, the link_up() function is never called. To fix this, a call to netif_carrier_off() is added just before phylink_start() so that we do not introduce a regression in the driver. Fixes: 4bb043262878 ("net: mvpp2: phylink support") Reported-by: Russell King Signed-off-by: Antoine Tenart Signed-off-by: David S. Miller --- .../net/ethernet/marvell/mvpp2/mvpp2_main.c | 21 ++++++------------- 1 file changed, 6 insertions(+), 15 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index 28500417843e..702fec82d806 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -58,6 +58,8 @@ static struct { */ static void mvpp2_mac_config(struct net_device *dev, unsigned int mode, const struct phylink_link_state *state); +static void mvpp2_mac_link_up(struct net_device *dev, unsigned int mode, + phy_interface_t interface, struct phy_device *phy); /* Queue modes */ #define MVPP2_QDIST_SINGLE_MODE 0 @@ -3142,6 +3144,7 @@ static void mvpp2_start_dev(struct mvpp2_port *port) mvpp22_mode_reconfigure(port); if (port->phylink) { + netif_carrier_off(port->dev); phylink_start(port->phylink); } else { /* Phylink isn't used as of now for ACPI, so the MAC has to be @@ -3150,9 +3153,10 @@ static void mvpp2_start_dev(struct mvpp2_port *port) */ struct phylink_link_state state = { .interface = port->phy_interface, - .link = 1, }; mvpp2_mac_config(port->dev, MLO_AN_INBAND, &state); + mvpp2_mac_link_up(port->dev, MLO_AN_INBAND, port->phy_interface, + NULL); } netif_tx_start_all_queues(port->dev); @@ -4495,10 +4499,6 @@ static void mvpp2_mac_config(struct net_device *dev, unsigned int mode, return; } - netif_tx_stop_all_queues(port->dev); - if (!port->has_phy) - netif_carrier_off(port->dev); - /* Make sure the port is disabled when reconfiguring the mode */ mvpp2_port_disable(port); @@ -4523,16 +4523,7 @@ static void mvpp2_mac_config(struct net_device *dev, unsigned int mode, if (port->priv->hw_version == MVPP21 && port->flags & MVPP2_F_LOOPBACK) mvpp2_port_loopback_set(port, state); - /* If the port already was up, make sure it's still in the same state */ - if (state->link || !port->has_phy) { - mvpp2_port_enable(port); - - mvpp2_egress_enable(port); - mvpp2_ingress_enable(port); - if (!port->has_phy) - netif_carrier_on(dev); - netif_tx_wake_all_queues(dev); - } + mvpp2_port_enable(port); } static void mvpp2_mac_link_up(struct net_device *dev, unsigned int mode, From eb4ed8e2d7fecb5f40db38e4498b9ee23cddf196 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Fri, 14 Sep 2018 17:48:10 +0200 Subject: [PATCH 1014/1762] net: macb: disable scatter-gather for macb on sama5d3 Create a new configuration for the sama5d3-macb new compatibility string. This configuration disables scatter-gather because we experienced lock down of the macb interface of this particular SoC under very high load. Signed-off-by: Nicolas Ferre Signed-off-by: David S. Miller --- drivers/net/ethernet/cadence/macb_main.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index 16e4ef7d7185..f1a86b422617 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -3837,6 +3837,13 @@ static const struct macb_config at91sam9260_config = { .init = macb_init, }; +static const struct macb_config sama5d3macb_config = { + .caps = MACB_CAPS_SG_DISABLED + | MACB_CAPS_USRIO_HAS_CLKEN | MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII, + .clk_init = macb_clk_init, + .init = macb_init, +}; + static const struct macb_config pc302gem_config = { .caps = MACB_CAPS_SG_DISABLED | MACB_CAPS_GIGABIT_MODE_AVAILABLE, .dma_burst_length = 16, @@ -3904,6 +3911,7 @@ static const struct of_device_id macb_dt_ids[] = { { .compatible = "cdns,gem", .data = &pc302gem_config }, { .compatible = "atmel,sama5d2-gem", .data = &sama5d2_config }, { .compatible = "atmel,sama5d3-gem", .data = &sama5d3_config }, + { .compatible = "atmel,sama5d3-macb", .data = &sama5d3macb_config }, { .compatible = "atmel,sama5d4-gem", .data = &sama5d4_config }, { .compatible = "cdns,at91rm9200-emac", .data = &emac_config }, { .compatible = "cdns,emac", .data = &emac_config }, From 321cc359d899a8e988f3725d87c18a628e1cc624 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Fri, 14 Sep 2018 17:48:11 +0200 Subject: [PATCH 1015/1762] ARM: dts: at91: add new compatibility string for macb on sama5d3 We need this new compatibility string as we experienced different behavior for this 10/100Mbits/s macb interface on this particular SoC. Backward compatibility is preserved as we keep the alternative strings. Signed-off-by: Nicolas Ferre Signed-off-by: David S. Miller --- Documentation/devicetree/bindings/net/macb.txt | 1 + arch/arm/boot/dts/sama5d3_emac.dtsi | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/net/macb.txt b/Documentation/devicetree/bindings/net/macb.txt index 457d5ae16f23..3e17ac1d5d58 100644 --- a/Documentation/devicetree/bindings/net/macb.txt +++ b/Documentation/devicetree/bindings/net/macb.txt @@ -10,6 +10,7 @@ Required properties: Use "cdns,pc302-gem" for Picochip picoXcell pc302 and later devices based on the Cadence GEM, or the generic form: "cdns,gem". Use "atmel,sama5d2-gem" for the GEM IP (10/100) available on Atmel sama5d2 SoCs. + Use "atmel,sama5d3-macb" for the 10/100Mbit IP available on Atmel sama5d3 SoCs. Use "atmel,sama5d3-gem" for the Gigabit IP available on Atmel sama5d3 SoCs. Use "atmel,sama5d4-gem" for the GEM IP (10/100) available on Atmel sama5d4 SoCs. Use "cdns,zynq-gem" Xilinx Zynq-7xxx SoC. diff --git a/arch/arm/boot/dts/sama5d3_emac.dtsi b/arch/arm/boot/dts/sama5d3_emac.dtsi index 7cb235ef0fb6..6e9e1c2f9def 100644 --- a/arch/arm/boot/dts/sama5d3_emac.dtsi +++ b/arch/arm/boot/dts/sama5d3_emac.dtsi @@ -41,7 +41,7 @@ }; macb1: ethernet@f802c000 { - compatible = "cdns,at91sam9260-macb", "cdns,macb"; + compatible = "atmel,sama5d3-macb", "cdns,at91sam9260-macb", "cdns,macb"; reg = <0xf802c000 0x100>; interrupts = <35 IRQ_TYPE_LEVEL_HIGH 3>; pinctrl-names = "default"; From a7f38002fb69b44f8fc622ecb838665d0b8666af Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Fri, 14 Sep 2018 17:39:53 +0100 Subject: [PATCH 1016/1762] net: hp100: fix always-true check for link up state The operation ~(p100_inb(VG_LAN_CFG_1) & HP100_LINK_UP) returns a value that is always non-zero and hence the wait for the link to drop always terminates prematurely. Fix this by using a logical not operator instead of a bitwise complement. This issue has been in the driver since pre-2.6.12-rc2. Detected by CoverityScan, CID#114157 ("Logical vs. bitwise operator") Signed-off-by: Colin Ian King Signed-off-by: David S. Miller --- drivers/net/ethernet/hp/hp100.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/hp/hp100.c b/drivers/net/ethernet/hp/hp100.c index c8c7ad2eff77..9b5a68b65432 100644 --- a/drivers/net/ethernet/hp/hp100.c +++ b/drivers/net/ethernet/hp/hp100.c @@ -2634,7 +2634,7 @@ static int hp100_login_to_vg_hub(struct net_device *dev, u_short force_relogin) /* Wait for link to drop */ time = jiffies + (HZ / 10); do { - if (~(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) + if (!(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) break; if (!in_interrupt()) schedule_timeout_interruptible(1); From bbd6528d28c1b8e80832b3b018ec402b6f5c3215 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 14 Sep 2018 12:02:31 -0700 Subject: [PATCH 1017/1762] ipv6: fix possible use-after-free in ip6_xmit() In the unlikely case ip6_xmit() has to call skb_realloc_headroom(), we need to call skb_set_owner_w() before consuming original skb, otherwise we risk a use-after-free. Bring IPv6 in line with what we do in IPv4 to fix this. Fixes: 1da177e4c3f41 ("Linux-2.6.12-rc2") Signed-off-by: Eric Dumazet Reported-by: syzbot Signed-off-by: David S. Miller --- net/ipv6/ip6_output.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 16f200f06500..f9f8f554d141 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -219,12 +219,10 @@ int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6, kfree_skb(skb); return -ENOBUFS; } + if (skb->sk) + skb_set_owner_w(skb2, skb->sk); consume_skb(skb); skb = skb2; - /* skb_set_owner_w() changes sk->sk_wmem_alloc atomically, - * it is safe to call in our context (socket lock not held) - */ - skb_set_owner_w(skb, (struct sock *)sk); } if (opt->opt_flen) ipv6_push_frag_opts(skb, opt, &proto); From 28ea334bd1657f3c43485b4a8592672fc6835fac Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Fri, 14 Sep 2018 15:41:29 -0400 Subject: [PATCH 1018/1762] bnxt_en: Fix VF mac address regression. The recent commit to always forward the VF MAC address to the PF for approval may not work if the PF driver or the firmware is older. This will cause the VF driver to fail during probe: bnxt_en 0000:00:03.0 (unnamed net_device) (uninitialized): hwrm req_type 0xf seq id 0x5 error 0xffff bnxt_en 0000:00:03.0 (unnamed net_device) (uninitialized): VF MAC address 00:00:17:02:05:d0 not approved by the PF bnxt_en 0000:00:03.0: Unable to initialize mac address. bnxt_en: probe of 0000:00:03.0 failed with error -99 We fix it by treating the error as fatal only if the VF MAC address is locally generated by the VF. Fixes: 707e7e966026 ("bnxt_en: Always forward VF MAC address to the PF.") Reported-by: Seth Forshee Reported-by: Siwei Liu Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 9 +++++++-- drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | 9 +++++---- drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h | 2 +- 3 files changed, 13 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index cecbb1d1f587..177587f9c3f1 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -8027,7 +8027,7 @@ static int bnxt_change_mac_addr(struct net_device *dev, void *p) if (ether_addr_equal(addr->sa_data, dev->dev_addr)) return 0; - rc = bnxt_approve_mac(bp, addr->sa_data); + rc = bnxt_approve_mac(bp, addr->sa_data, true); if (rc) return rc; @@ -8827,14 +8827,19 @@ static int bnxt_init_mac_addr(struct bnxt *bp) } else { #ifdef CONFIG_BNXT_SRIOV struct bnxt_vf_info *vf = &bp->vf; + bool strict_approval = true; if (is_valid_ether_addr(vf->mac_addr)) { /* overwrite netdev dev_addr with admin VF MAC */ memcpy(bp->dev->dev_addr, vf->mac_addr, ETH_ALEN); + /* Older PF driver or firmware may not approve this + * correctly. + */ + strict_approval = false; } else { eth_hw_addr_random(bp->dev); } - rc = bnxt_approve_mac(bp, bp->dev->dev_addr); + rc = bnxt_approve_mac(bp, bp->dev->dev_addr, strict_approval); #endif } return rc; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c index fcd085a9853a..3962f6fd543c 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c @@ -1104,7 +1104,7 @@ update_vf_mac_exit: mutex_unlock(&bp->hwrm_cmd_lock); } -int bnxt_approve_mac(struct bnxt *bp, u8 *mac) +int bnxt_approve_mac(struct bnxt *bp, u8 *mac, bool strict) { struct hwrm_func_vf_cfg_input req = {0}; int rc = 0; @@ -1122,12 +1122,13 @@ int bnxt_approve_mac(struct bnxt *bp, u8 *mac) memcpy(req.dflt_mac_addr, mac, ETH_ALEN); rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); mac_done: - if (rc) { + if (rc && strict) { rc = -EADDRNOTAVAIL; netdev_warn(bp->dev, "VF MAC address %pM not approved by the PF\n", mac); + return rc; } - return rc; + return 0; } #else @@ -1144,7 +1145,7 @@ void bnxt_update_vf_mac(struct bnxt *bp) { } -int bnxt_approve_mac(struct bnxt *bp, u8 *mac) +int bnxt_approve_mac(struct bnxt *bp, u8 *mac, bool strict) { return 0; } diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h index e9b20cd19881..2eed9eda1195 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h @@ -39,5 +39,5 @@ int bnxt_sriov_configure(struct pci_dev *pdev, int num_vfs); void bnxt_sriov_disable(struct bnxt *); void bnxt_hwrm_exec_fwd_req(struct bnxt *); void bnxt_update_vf_mac(struct bnxt *); -int bnxt_approve_mac(struct bnxt *, u8 *); +int bnxt_approve_mac(struct bnxt *, u8 *, bool); #endif From a15f2c08c70811f120d99288d81f70d7f3d104f1 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Fri, 14 Sep 2018 12:54:56 -0700 Subject: [PATCH 1019/1762] PCI: hv: support reporting serial number as slot information The Hyper-V host API for PCI provides a unique "serial number" which can be used as basis for sysfs PCI slot table. This can be useful for cases where userspace wants to find the PCI device based on serial number. When an SR-IOV NIC is added, the host sends an attach message with serial number. The kernel doesn't use the serial number, but it is useful when doing the same thing in a userspace driver such as the DPDK. By having /sys/bus/pci/slots/N it provides a direct way to find the matching PCI device. There maybe some cases where serial number is not unique such as when using GPU's. But the PCI slot infrastructure will handle that. This has a side effect which may also be useful. The common udev network device naming policy uses the slot information (rather than PCI address). Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/pci/controller/pci-hyperv.c | 37 +++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index c00f82cc54aa..ee80e79db21a 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -89,6 +89,9 @@ static enum pci_protocol_version_t pci_protocol_version; #define STATUS_REVISION_MISMATCH 0xC0000059 +/* space for 32bit serial number as string */ +#define SLOT_NAME_SIZE 11 + /* * Message Types */ @@ -494,6 +497,7 @@ struct hv_pci_dev { struct list_head list_entry; refcount_t refs; enum hv_pcichild_state state; + struct pci_slot *pci_slot; struct pci_function_description desc; bool reported_missing; struct hv_pcibus_device *hbus; @@ -1457,6 +1461,34 @@ static void prepopulate_bars(struct hv_pcibus_device *hbus) spin_unlock_irqrestore(&hbus->device_list_lock, flags); } +/* + * Assign entries in sysfs pci slot directory. + * + * Note that this function does not need to lock the children list + * because it is called from pci_devices_present_work which + * is serialized with hv_eject_device_work because they are on the + * same ordered workqueue. Therefore hbus->children list will not change + * even when pci_create_slot sleeps. + */ +static void hv_pci_assign_slots(struct hv_pcibus_device *hbus) +{ + struct hv_pci_dev *hpdev; + char name[SLOT_NAME_SIZE]; + int slot_nr; + + list_for_each_entry(hpdev, &hbus->children, list_entry) { + if (hpdev->pci_slot) + continue; + + slot_nr = PCI_SLOT(wslot_to_devfn(hpdev->desc.win_slot.slot)); + snprintf(name, SLOT_NAME_SIZE, "%u", hpdev->desc.ser); + hpdev->pci_slot = pci_create_slot(hbus->pci_bus, slot_nr, + name, NULL); + if (!hpdev->pci_slot) + pr_warn("pci_create slot %s failed\n", name); + } +} + /** * create_root_hv_pci_bus() - Expose a new root PCI bus * @hbus: Root PCI bus, as understood by this driver @@ -1480,6 +1512,7 @@ static int create_root_hv_pci_bus(struct hv_pcibus_device *hbus) pci_lock_rescan_remove(); pci_scan_child_bus(hbus->pci_bus); pci_bus_assign_resources(hbus->pci_bus); + hv_pci_assign_slots(hbus); pci_bus_add_devices(hbus->pci_bus); pci_unlock_rescan_remove(); hbus->state = hv_pcibus_installed; @@ -1742,6 +1775,7 @@ static void pci_devices_present_work(struct work_struct *work) */ pci_lock_rescan_remove(); pci_scan_child_bus(hbus->pci_bus); + hv_pci_assign_slots(hbus); pci_unlock_rescan_remove(); break; @@ -1858,6 +1892,9 @@ static void hv_eject_device_work(struct work_struct *work) list_del(&hpdev->list_entry); spin_unlock_irqrestore(&hpdev->hbus->device_list_lock, flags); + if (hpdev->pci_slot) + pci_destroy_slot(hpdev->pci_slot); + memset(&ctxt, 0, sizeof(ctxt)); ejct_pkt = (struct pci_eject_response *)&ctxt.pkt.message; ejct_pkt->message_type.type = PCI_EJECTION_COMPLETE; From 00d7ddba1143623b31bc2c15d18216e2da031b14 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Fri, 14 Sep 2018 12:54:57 -0700 Subject: [PATCH 1020/1762] hv_netvsc: pair VF based on serial number Matching network device based on MAC address is problematic since a non VF network device can be creted with a duplicate MAC address causing confusion and problems. The VMBus API does provide a serial number that is a better matching method. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/hyperv/netvsc.c | 3 ++ drivers/net/hyperv/netvsc_drv.c | 58 +++++++++++++++++++-------------- 2 files changed, 36 insertions(+), 25 deletions(-) diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index 31c3d77b4733..fe01e141c8f8 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -1203,6 +1203,9 @@ static void netvsc_send_vf(struct net_device *ndev, net_device_ctx->vf_alloc = nvmsg->msg.v4_msg.vf_assoc.allocated; net_device_ctx->vf_serial = nvmsg->msg.v4_msg.vf_assoc.serial; + netdev_info(ndev, "VF slot %u %s\n", + net_device_ctx->vf_serial, + net_device_ctx->vf_alloc ? "added" : "removed"); } static void netvsc_receive_inband(struct net_device *ndev, diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 915fbd66a02b..3af6d8d15233 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -1894,20 +1894,6 @@ out_unlock: rtnl_unlock(); } -static struct net_device *get_netvsc_bymac(const u8 *mac) -{ - struct net_device_context *ndev_ctx; - - list_for_each_entry(ndev_ctx, &netvsc_dev_list, list) { - struct net_device *dev = hv_get_drvdata(ndev_ctx->device_ctx); - - if (ether_addr_equal(mac, dev->perm_addr)) - return dev; - } - - return NULL; -} - static struct net_device *get_netvsc_byref(struct net_device *vf_netdev) { struct net_device_context *net_device_ctx; @@ -2036,26 +2022,48 @@ static void netvsc_vf_setup(struct work_struct *w) rtnl_unlock(); } +/* Find netvsc by VMBus serial number. + * The PCI hyperv controller records the serial number as the slot. + */ +static struct net_device *get_netvsc_byslot(const struct net_device *vf_netdev) +{ + struct device *parent = vf_netdev->dev.parent; + struct net_device_context *ndev_ctx; + struct pci_dev *pdev; + + if (!parent || !dev_is_pci(parent)) + return NULL; /* not a PCI device */ + + pdev = to_pci_dev(parent); + if (!pdev->slot) { + netdev_notice(vf_netdev, "no PCI slot information\n"); + return NULL; + } + + list_for_each_entry(ndev_ctx, &netvsc_dev_list, list) { + if (!ndev_ctx->vf_alloc) + continue; + + if (ndev_ctx->vf_serial == pdev->slot->number) + return hv_get_drvdata(ndev_ctx->device_ctx); + } + + netdev_notice(vf_netdev, + "no netdev found for slot %u\n", pdev->slot->number); + return NULL; +} + static int netvsc_register_vf(struct net_device *vf_netdev) { - struct net_device *ndev; struct net_device_context *net_device_ctx; - struct device *pdev = vf_netdev->dev.parent; struct netvsc_device *netvsc_dev; + struct net_device *ndev; int ret; if (vf_netdev->addr_len != ETH_ALEN) return NOTIFY_DONE; - if (!pdev || !dev_is_pci(pdev) || dev_is_pf(pdev)) - return NOTIFY_DONE; - - /* - * We will use the MAC address to locate the synthetic interface to - * associate with the VF interface. If we don't find a matching - * synthetic interface, move on. - */ - ndev = get_netvsc_bymac(vf_netdev->perm_addr); + ndev = get_netvsc_byslot(vf_netdev); if (!ndev) return NOTIFY_DONE; From 50c6b58a814d86a93c0f6964570f839632854044 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Fri, 14 Sep 2018 23:00:55 +0200 Subject: [PATCH 1021/1762] tls: fix currently broken MSG_PEEK behavior In kTLS MSG_PEEK behavior is currently failing, strace example: [pid 2430] socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = 3 [pid 2430] socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = 4 [pid 2430] bind(4, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 [pid 2430] listen(4, 10) = 0 [pid 2430] getsockname(4, {sa_family=AF_INET, sin_port=htons(38855), sin_addr=inet_addr("0.0.0.0")}, [16]) = 0 [pid 2430] connect(3, {sa_family=AF_INET, sin_port=htons(38855), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 [pid 2430] setsockopt(3, SOL_TCP, 0x1f /* TCP_??? */, [7564404], 4) = 0 [pid 2430] setsockopt(3, 0x11a /* SOL_?? */, 1, "\3\0033\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 40) = 0 [pid 2430] accept(4, {sa_family=AF_INET, sin_port=htons(49636), sin_addr=inet_addr("127.0.0.1")}, [16]) = 5 [pid 2430] setsockopt(5, SOL_TCP, 0x1f /* TCP_??? */, [7564404], 4) = 0 [pid 2430] setsockopt(5, 0x11a /* SOL_?? */, 2, "\3\0033\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 40) = 0 [pid 2430] close(4) = 0 [pid 2430] sendto(3, "test_read_peek", 14, 0, NULL, 0) = 14 [pid 2430] sendto(3, "_mult_recs\0", 11, 0, NULL, 0) = 11 [pid 2430] recvfrom(5, "test_read_peektest_read_peektest"..., 64, MSG_PEEK, NULL, NULL) = 64 As can be seen from strace, there are two TLS records sent, i) 'test_read_peek' and ii) '_mult_recs\0' where we end up peeking 'test_read_peektest_read_peektest'. This is clearly wrong, and what happens is that given peek cannot call into tls_sw_advance_skb() to unpause strparser and proceed with the next skb, we end up looping over the current one, copying the 'test_read_peek' over and over into the user provided buffer. Here, we can only peek into the currently held skb (current, full TLS record) as otherwise we would end up having to hold all the original skb(s) (depending on the peek depth) in a separate queue when unpausing strparser to process next records, minimally intrusive is to return only up to the current record's size (which likely was what c46234ebb4d1 ("tls: RX path for ktls") originally intended as well). Thus, after patch we properly peek the first record: [pid 2046] wait4(2075, [pid 2075] socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = 3 [pid 2075] socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = 4 [pid 2075] bind(4, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 [pid 2075] listen(4, 10) = 0 [pid 2075] getsockname(4, {sa_family=AF_INET, sin_port=htons(55115), sin_addr=inet_addr("0.0.0.0")}, [16]) = 0 [pid 2075] connect(3, {sa_family=AF_INET, sin_port=htons(55115), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 [pid 2075] setsockopt(3, SOL_TCP, 0x1f /* TCP_??? */, [7564404], 4) = 0 [pid 2075] setsockopt(3, 0x11a /* SOL_?? */, 1, "\3\0033\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 40) = 0 [pid 2075] accept(4, {sa_family=AF_INET, sin_port=htons(45732), sin_addr=inet_addr("127.0.0.1")}, [16]) = 5 [pid 2075] setsockopt(5, SOL_TCP, 0x1f /* TCP_??? */, [7564404], 4) = 0 [pid 2075] setsockopt(5, 0x11a /* SOL_?? */, 2, "\3\0033\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 40) = 0 [pid 2075] close(4) = 0 [pid 2075] sendto(3, "test_read_peek", 14, 0, NULL, 0) = 14 [pid 2075] sendto(3, "_mult_recs\0", 11, 0, NULL, 0) = 11 [pid 2075] recvfrom(5, "test_read_peek", 64, MSG_PEEK, NULL, NULL) = 14 Fixes: c46234ebb4d1 ("tls: RX path for ktls") Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller --- net/tls/tls_sw.c | 8 +++++ tools/testing/selftests/net/tls.c | 49 +++++++++++++++++++++++++++++++ 2 files changed, 57 insertions(+) diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index 9e918489f4fb..b9c6ecfbcfea 100644 --- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -931,7 +931,15 @@ int tls_sw_recvmsg(struct sock *sk, if (control != TLS_RECORD_TYPE_DATA) goto recv_end; } + } else { + /* MSG_PEEK right now cannot look beyond current skb + * from strparser, meaning we cannot advance skb here + * and thus unpause strparser since we'd loose original + * one. + */ + break; } + /* If we have a new message from strparser, continue now. */ if (copied >= target && !ctx->recv_pkt) break; diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c index b3ebf2646e52..8fdfeafaf8c0 100644 --- a/tools/testing/selftests/net/tls.c +++ b/tools/testing/selftests/net/tls.c @@ -502,6 +502,55 @@ TEST_F(tls, recv_peek_multiple) EXPECT_EQ(memcmp(test_str, buf, send_len), 0); } +TEST_F(tls, recv_peek_multiple_records) +{ + char const *test_str = "test_read_peek_mult_recs"; + char const *test_str_first = "test_read_peek"; + char const *test_str_second = "_mult_recs"; + int len; + char buf[64]; + + len = strlen(test_str_first); + EXPECT_EQ(send(self->fd, test_str_first, len, 0), len); + + len = strlen(test_str_second) + 1; + EXPECT_EQ(send(self->fd, test_str_second, len, 0), len); + + len = sizeof(buf); + memset(buf, 0, len); + EXPECT_NE(recv(self->cfd, buf, len, MSG_PEEK), -1); + + /* MSG_PEEK can only peek into the current record. */ + len = strlen(test_str_first) + 1; + EXPECT_EQ(memcmp(test_str_first, buf, len), 0); + + len = sizeof(buf); + memset(buf, 0, len); + EXPECT_NE(recv(self->cfd, buf, len, 0), -1); + + /* Non-MSG_PEEK will advance strparser (and therefore record) + * however. + */ + len = strlen(test_str) + 1; + EXPECT_EQ(memcmp(test_str, buf, len), 0); + + /* MSG_MORE will hold current record open, so later MSG_PEEK + * will see everything. + */ + len = strlen(test_str_first); + EXPECT_EQ(send(self->fd, test_str_first, len, MSG_MORE), len); + + len = strlen(test_str_second) + 1; + EXPECT_EQ(send(self->fd, test_str_second, len, 0), len); + + len = sizeof(buf); + memset(buf, 0, len); + EXPECT_NE(recv(self->cfd, buf, len, MSG_PEEK), -1); + + len = strlen(test_str) + 1; + EXPECT_EQ(memcmp(test_str, buf, len), 0); +} + TEST_F(tls, pollin) { char const *test_str = "test_poll"; From ddca24dfcf1bec608668dd44c45d49397b70f520 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Fri, 14 Sep 2018 23:46:12 +0200 Subject: [PATCH 1022/1762] net: dsa: mv88e6xxx: Fix ATU Miss Violation Fix a cut/paste error and a typo which results in ATU miss violations not being reported. Fixes: 0977644c5005 ("net: dsa: mv88e6xxx: Decode ATU problem interrupt") Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/dsa/mv88e6xxx/global1.h | 2 +- drivers/net/dsa/mv88e6xxx/global1_atu.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/dsa/mv88e6xxx/global1.h b/drivers/net/dsa/mv88e6xxx/global1.h index 7c791c1da4b9..bef01331266f 100644 --- a/drivers/net/dsa/mv88e6xxx/global1.h +++ b/drivers/net/dsa/mv88e6xxx/global1.h @@ -128,7 +128,7 @@ #define MV88E6XXX_G1_ATU_OP_GET_CLR_VIOLATION 0x7000 #define MV88E6XXX_G1_ATU_OP_AGE_OUT_VIOLATION BIT(7) #define MV88E6XXX_G1_ATU_OP_MEMBER_VIOLATION BIT(6) -#define MV88E6XXX_G1_ATU_OP_MISS_VIOLTATION BIT(5) +#define MV88E6XXX_G1_ATU_OP_MISS_VIOLATION BIT(5) #define MV88E6XXX_G1_ATU_OP_FULL_VIOLATION BIT(4) /* Offset 0x0C: ATU Data Register */ diff --git a/drivers/net/dsa/mv88e6xxx/global1_atu.c b/drivers/net/dsa/mv88e6xxx/global1_atu.c index 307410898fc9..5200e4bdce93 100644 --- a/drivers/net/dsa/mv88e6xxx/global1_atu.c +++ b/drivers/net/dsa/mv88e6xxx/global1_atu.c @@ -349,7 +349,7 @@ static irqreturn_t mv88e6xxx_g1_atu_prob_irq_thread_fn(int irq, void *dev_id) chip->ports[entry.portvec].atu_member_violation++; } - if (val & MV88E6XXX_G1_ATU_OP_MEMBER_VIOLATION) { + if (val & MV88E6XXX_G1_ATU_OP_MISS_VIOLATION) { dev_err_ratelimited(chip->dev, "ATU miss violation for %pM portvec %x\n", entry.mac, entry.portvec); From c73480910e9686a5c25155cb4d418d594b678196 Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Mon, 17 Sep 2018 18:44:19 +0800 Subject: [PATCH 1023/1762] net: ethernet: Fix a unused function warning. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix the following compile warning: drivers/net/ethernet/microchip/lan743x_main.c:2964:12: warning: ‘lan743x_pm_suspend’ defined but not used [-Wunused-function] static int lan743x_pm_suspend(struct device *dev) drivers/net/ethernet/microchip/lan743x_main.c:2987:12: warning: ‘lan743x_pm_resume’ defined but not used [-Wunused-function] static int lan743x_pm_resume(struct device *dev) Signed-off-by: zhong jiang Signed-off-by: David S. Miller --- drivers/net/ethernet/microchip/lan743x_main.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c index e7dce79ff2c9..001b5f714c1b 100644 --- a/drivers/net/ethernet/microchip/lan743x_main.c +++ b/drivers/net/ethernet/microchip/lan743x_main.c @@ -2850,7 +2850,7 @@ static void lan743x_pcidev_shutdown(struct pci_dev *pdev) lan743x_hardware_cleanup(adapter); } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static u16 lan743x_pm_wakeframe_crc16(const u8 *buf, int len) { return bitrev16(crc16(0xFFFF, buf, len)); @@ -3016,7 +3016,7 @@ static int lan743x_pm_resume(struct device *dev) static const struct dev_pm_ops lan743x_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(lan743x_pm_suspend, lan743x_pm_resume) }; -#endif /*CONFIG_PM */ +#endif /* CONFIG_PM_SLEEP */ static const struct pci_device_id lan743x_pcidev_tbl[] = { { PCI_DEVICE(PCI_VENDOR_ID_SMSC, PCI_DEVICE_ID_SMSC_LAN7430) }, @@ -3028,7 +3028,7 @@ static struct pci_driver lan743x_pcidev_driver = { .id_table = lan743x_pcidev_tbl, .probe = lan743x_pcidev_probe, .remove = lan743x_pcidev_remove, -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP .driver.pm = &lan743x_pm_ops, #endif .shutdown = lan743x_pcidev_shutdown, From 013ad043906b2befd4a9bfb06219ed9fedd92716 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Thu, 13 Sep 2018 21:16:20 -0400 Subject: [PATCH 1024/1762] dm thin metadata: fix __udivdi3 undefined on 32-bit sector_div() is only viable for use with sector_t. dm_block_t is typedef'd to uint64_t -- so use div_u64() instead. Fixes: 3ab918281 ("dm thin metadata: try to avoid ever aborting transactions") Signed-off-by: Mike Snitzer --- drivers/md/dm-thin-metadata.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c index 74f6770c70b1..20b0776e39ef 100644 --- a/drivers/md/dm-thin-metadata.c +++ b/drivers/md/dm-thin-metadata.c @@ -832,10 +832,8 @@ static void __set_metadata_reserve(struct dm_pool_metadata *pmd) if (r) { DMERR("could not get size of metadata device"); pmd->metadata_reserve = max_blocks; - } else { - sector_div(total, 10); - pmd->metadata_reserve = min(max_blocks, total); - } + } else + pmd->metadata_reserve = min(max_blocks, div_u64(total, 10)); } struct dm_pool_metadata *dm_pool_metadata_open(struct block_device *bdev, From 597d18325acdb48eb516ca9ef33d5148e79ca3bb Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Thu, 13 Sep 2018 14:08:15 -0500 Subject: [PATCH 1025/1762] ASoC: es8328: Fix fall-through annotations Replace "fallthru" with a proper "fall through" annotation. This fix is part of the ongoing efforts to enabling -Wimplicit-fallthrough Signed-off-by: Gustavo A. R. Silva Signed-off-by: Mark Brown --- sound/soc/codecs/es8328.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/es8328.c b/sound/soc/codecs/es8328.c index e9fc2fd97d2f..3aedd609626c 100644 --- a/sound/soc/codecs/es8328.c +++ b/sound/soc/codecs/es8328.c @@ -566,14 +566,14 @@ static int es8328_set_sysclk(struct snd_soc_dai *codec_dai, break; case 22579200: mclkdiv2 = 1; - /* fallthru */ + /* fall through */ case 11289600: es8328->sysclk_constraints = &constraints_11289; es8328->mclk_ratios = ratios_11289; break; case 24576000: mclkdiv2 = 1; - /* fallthru */ + /* fall through */ case 12288000: es8328->sysclk_constraints = &constraints_12288; es8328->mclk_ratios = ratios_12288; From 982e386379f01aa6254e3313cff1edcb04c66685 Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Thu, 13 Sep 2018 14:11:07 -0500 Subject: [PATCH 1026/1762] ASoC: hisilicon: fix fall-through annotations Replace "fallthru" with a proper "fall through" annotation. This fix is part of the ongoing efforts to enabling -Wimplicit-fallthrough Signed-off-by: Gustavo A. R. Silva Signed-off-by: Mark Brown --- sound/soc/hisilicon/hi6210-i2s.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/hisilicon/hi6210-i2s.c b/sound/soc/hisilicon/hi6210-i2s.c index 53344a3b7a60..a69e5b11b3da 100644 --- a/sound/soc/hisilicon/hi6210-i2s.c +++ b/sound/soc/hisilicon/hi6210-i2s.c @@ -269,13 +269,13 @@ static int hi6210_i2s_hw_params(struct snd_pcm_substream *substream, switch (params_format(params)) { case SNDRV_PCM_FORMAT_U16_LE: signed_data = HII2S_I2S_CFG__S2_CODEC_DATA_FORMAT; - /* fallthru */ + /* fall through */ case SNDRV_PCM_FORMAT_S16_LE: bits = HII2S_BITS_16; break; case SNDRV_PCM_FORMAT_U24_LE: signed_data = HII2S_I2S_CFG__S2_CODEC_DATA_FORMAT; - /* fallthru */ + /* fall through */ case SNDRV_PCM_FORMAT_S24_LE: bits = HII2S_BITS_24; break; From 24b7a0aa1abec41b62c9a29a75e511d29f95033b Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Fri, 14 Sep 2018 01:36:04 +0000 Subject: [PATCH 1027/1762] ASoC: qdsp6: q6asm-dai: remove duplicated include from q6asm-dai.c Remove duplicated include. Signed-off-by: YueHaibing Acked-by: Srinivas Kandagatla Signed-off-by: Mark Brown --- sound/soc/qcom/qdsp6/q6asm-dai.c | 1 - 1 file changed, 1 deletion(-) diff --git a/sound/soc/qcom/qdsp6/q6asm-dai.c b/sound/soc/qcom/qdsp6/q6asm-dai.c index c75fab38905d..c3806d7037fc 100644 --- a/sound/soc/qcom/qdsp6/q6asm-dai.c +++ b/sound/soc/qcom/qdsp6/q6asm-dai.c @@ -8,7 +8,6 @@ #include #include #include -#include #include #include #include From 4a9ed39477bd1635cf23b49e10f9e364329bbe46 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 11 Sep 2018 06:51:14 +0000 Subject: [PATCH 1028/1762] ASoC: soc-core: manage platform name under snd_soc_init_platform() Now "platform" is controlled by snd_soc_dai_link_component, thus its "name" can be initialized in snd_soc_init_platform(), instead of soc_bind_dai_link() local. This patch do it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 33 +++++++++++++++++---------------- 1 file changed, 17 insertions(+), 16 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 325dc1964850..d856b08f5f99 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -845,7 +845,6 @@ static int soc_bind_dai_link(struct snd_soc_card *card, struct snd_soc_component *component; struct snd_soc_dai **codec_dais; struct device_node *platform_of_node; - const char *platform_name; int i; if (dai_link->ignore) @@ -892,11 +891,6 @@ static int soc_bind_dai_link(struct snd_soc_card *card, /* Single codec links expect codec and codec_dai in runtime data */ rtd->codec_dai = codec_dais[0]; - /* if there's no platform we match on the empty platform */ - platform_name = dai_link->platform->name; - if (!platform_name && !dai_link->platform->of_node) - platform_name = "snd-soc-dummy"; - /* find one from the set of registered platforms */ list_for_each_entry(component, &component_list, list) { platform_of_node = component->dev->of_node; @@ -907,7 +901,7 @@ static int soc_bind_dai_link(struct snd_soc_card *card, if (platform_of_node != dai_link->platform->of_node) continue; } else { - if (strcmp(component->name, platform_name)) + if (strcmp(component->name, dai_link->platform->name)) continue; } @@ -1020,24 +1014,31 @@ static void soc_remove_dai_links(struct snd_soc_card *card) static int snd_soc_init_platform(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { + struct snd_soc_dai_link_component *platform = dai_link->platform; + /* * FIXME * * this function should be removed in the future */ /* convert Legacy platform link */ - if (dai_link->platform) - return 0; - - dai_link->platform = devm_kzalloc(card->dev, + if (!platform) { + platform = devm_kzalloc(card->dev, sizeof(struct snd_soc_dai_link_component), GFP_KERNEL); - if (!dai_link->platform) - return -ENOMEM; + if (!platform) + return -ENOMEM; - dai_link->platform->name = dai_link->platform_name; - dai_link->platform->of_node = dai_link->platform_of_node; - dai_link->platform->dai_name = NULL; + dai_link->platform = platform; + platform->name = dai_link->platform_name; + platform->of_node = dai_link->platform_of_node; + platform->dai_name = NULL; + } + + /* if there's no platform we match on the empty platform */ + if (!platform->name && + !platform->of_node) + platform->name = "snd-soc-dummy"; return 0; } From be6ac0a9ced99403c435b2b2fe9ac4bd55749823 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 11 Sep 2018 06:51:45 +0000 Subject: [PATCH 1029/1762] ASoC: soc-core: add snd_soc_is_matching_component() To find (CPU/)Codec/Platform, we need to find component first (= on CPU/Codec/Platform), and find DAI from it (= CPU/Codec). These are similar operation but difficult to be simple, and has many duplicate code to finding component. This patch adds new snd_soc_is_matching_component(), and reduce duplicate codes. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 42 ++++++++++++++++++++++-------------------- 1 file changed, 22 insertions(+), 20 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index d856b08f5f99..da2b2a758b6d 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -737,6 +737,24 @@ static struct snd_soc_component *soc_find_component( return NULL; } +static int snd_soc_is_matching_component( + const struct snd_soc_dai_link_component *dlc, + struct snd_soc_component *component) +{ + struct device_node *component_of_node; + + component_of_node = component->dev->of_node; + if (!component_of_node && component->dev->parent) + component_of_node = component->dev->parent->of_node; + + if (dlc->of_node && component_of_node != dlc->of_node) + return 0; + if (dlc->name && strcmp(component->name, dlc->name)) + return 0; + + return 1; +} + /** * snd_soc_find_dai - Find a registered DAI * @@ -753,19 +771,12 @@ struct snd_soc_dai *snd_soc_find_dai( { struct snd_soc_component *component; struct snd_soc_dai *dai; - struct device_node *component_of_node; lockdep_assert_held(&client_mutex); /* Find CPU DAI from registered DAIs*/ list_for_each_entry(component, &component_list, list) { - component_of_node = component->dev->of_node; - if (!component_of_node && component->dev->parent) - component_of_node = component->dev->parent->of_node; - - if (dlc->of_node && component_of_node != dlc->of_node) - continue; - if (dlc->name && strcmp(component->name, dlc->name)) + if (!snd_soc_is_matching_component(dlc, component)) continue; list_for_each_entry(dai, &component->dai_list, list) { if (dlc->dai_name && strcmp(dai->name, dlc->dai_name) @@ -844,7 +855,6 @@ static int soc_bind_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link_component cpu_dai_component; struct snd_soc_component *component; struct snd_soc_dai **codec_dais; - struct device_node *platform_of_node; int i; if (dai_link->ignore) @@ -893,17 +903,9 @@ static int soc_bind_dai_link(struct snd_soc_card *card, /* find one from the set of registered platforms */ list_for_each_entry(component, &component_list, list) { - platform_of_node = component->dev->of_node; - if (!platform_of_node && component->dev->parent->of_node) - platform_of_node = component->dev->parent->of_node; - - if (dai_link->platform->of_node) { - if (platform_of_node != dai_link->platform->of_node) - continue; - } else { - if (strcmp(component->name, dai_link->platform->name)) - continue; - } + if (!snd_soc_is_matching_component(dai_link->platform, + component)) + continue; snd_soc_rtdcom_add(rtd, component); } From fbb673f7c6555d5434ad005f86b0d4368b1203d9 Mon Sep 17 00:00:00 2001 From: Oder Chiou Date: Mon, 17 Sep 2018 19:03:09 +0800 Subject: [PATCH 1030/1762] ASoC: rt5514-spi: Get the period_bytes in the copy work to make sure the value correctly The value of period_bytes will get the zero before the hw_params() is not run completely. Move the function snd_pcm_lib_period_bytes() to copy work, and make sure that is not zero. Signed-off-by: Oder Chiou Signed-off-by: Mark Brown --- sound/soc/codecs/rt5514-spi.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c index 18686ffb0cd5..13809821e1f8 100644 --- a/sound/soc/codecs/rt5514-spi.c +++ b/sound/soc/codecs/rt5514-spi.c @@ -91,6 +91,14 @@ static void rt5514_spi_copy_work(struct work_struct *work) runtime = rt5514_dsp->substream->runtime; period_bytes = snd_pcm_lib_period_bytes(rt5514_dsp->substream); + if (!period_bytes) { + schedule_delayed_work(&rt5514_dsp->copy_work, 5); + goto done; + } + + if (rt5514_dsp->buf_size % period_bytes) + rt5514_dsp->buf_size = (rt5514_dsp->buf_size / period_bytes) * + period_bytes; if (rt5514_dsp->get_size >= rt5514_dsp->buf_size) { rt5514_spi_burst_read(RT5514_BUFFER_VOICE_WP, (u8 *)&buf, @@ -149,13 +157,11 @@ done: static void rt5514_schedule_copy(struct rt5514_dsp *rt5514_dsp) { - size_t period_bytes; u8 buf[8]; if (!rt5514_dsp->substream) return; - period_bytes = snd_pcm_lib_period_bytes(rt5514_dsp->substream); rt5514_dsp->get_size = 0; /** @@ -183,10 +189,6 @@ static void rt5514_schedule_copy(struct rt5514_dsp *rt5514_dsp) rt5514_dsp->buf_size = rt5514_dsp->buf_limit - rt5514_dsp->buf_base; - if (rt5514_dsp->buf_size % period_bytes) - rt5514_dsp->buf_size = (rt5514_dsp->buf_size / period_bytes) * - period_bytes; - if (rt5514_dsp->buf_base && rt5514_dsp->buf_limit && rt5514_dsp->buf_rp && rt5514_dsp->buf_size) schedule_delayed_work(&rt5514_dsp->copy_work, 0); From 2ea15030c3f0554db695f85e4760da8621c183d3 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Tue, 11 Sep 2018 15:06:26 +0200 Subject: [PATCH 1031/1762] mmc: sdhi: sys_dmac: check for all Gen3 types when whitelisting Fixes: 26eb2607fa28 ("mmc: renesas_sdhi: add eMMC HS400 mode support") Signed-off-by: Wolfram Sang Reviewed-by: Simon Horman Signed-off-by: Ulf Hansson --- drivers/mmc/host/renesas_sdhi_sys_dmac.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/renesas_sdhi_sys_dmac.c b/drivers/mmc/host/renesas_sdhi_sys_dmac.c index 890f192dedbd..5389c4821882 100644 --- a/drivers/mmc/host/renesas_sdhi_sys_dmac.c +++ b/drivers/mmc/host/renesas_sdhi_sys_dmac.c @@ -498,7 +498,8 @@ static const struct soc_device_attribute gen3_soc_whitelist[] = { static int renesas_sdhi_sys_dmac_probe(struct platform_device *pdev) { - if (of_device_get_match_data(&pdev->dev) == &of_rcar_gen3_compatible && + if ((of_device_get_match_data(&pdev->dev) == &of_rcar_gen3_compatible || + of_device_get_match_data(&pdev->dev) == &of_rcar_r8a7795_compatible) && !soc_device_match(gen3_soc_whitelist)) return -ENODEV; From 324493fba77500592bbaa66421729421f139d4b5 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 14 Aug 2018 12:02:31 -0400 Subject: [PATCH 1032/1762] media: platform: fix cros-ec-cec build error Fix build when MFD_CROS_EC is not enabled but COMPILE_TEST=y. Fixes this build error: ERROR: "cros_ec_cmd_xfer_status" [drivers/media/platform/cros-ec-cec/cros-ec-cec.ko] undefined! Signed-off-by: Randy Dunlap Cc: Neil Armstrong Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig index 94c1fe0e9787..54fe90acb5b2 100644 --- a/drivers/media/platform/Kconfig +++ b/drivers/media/platform/Kconfig @@ -541,6 +541,8 @@ config VIDEO_CROS_EC_CEC depends on MFD_CROS_EC select CEC_CORE select CEC_NOTIFIER + select CHROME_PLATFORMS + select CROS_EC_PROTO ---help--- If you say yes here you will get support for the ChromeOS Embedded Controller's CEC. From 250ae0d46d857ed61f3e0abf584901e46bd2c638 Mon Sep 17 00:00:00 2001 From: Eli Cohen Date: Sun, 2 Sep 2018 12:01:53 +0300 Subject: [PATCH 1033/1762] net/mlx5: Fix read from coherent memory Use accessor function READ_ONCE to read from coherent memory modified by the device and read by the driver. This becomes most important in preemptive kernels where cond_resched implementation does not have the side effect which guaranteed the updated value. Fixes: 269d26f47f6f ("net/mlx5: Reduce command polling interval") Change-Id: Ie6deeb565ffaf76777b07448c7fbcce3510bbb8a Signed-off-by: Eli Cohen Reported-by: Jesper Dangaard Brouer Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c index 3ce14d42ddc8..a53736c26c0c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c @@ -206,7 +206,7 @@ static void poll_timeout(struct mlx5_cmd_work_ent *ent) u8 own; do { - own = ent->lay->status_own; + own = READ_ONCE(ent->lay->status_own); if (!(own & CMD_OWNER_HW)) { ent->ret = 0; return; From 6b359d5550a1ae7a1269c9dc1dd73dfdc4d6fe58 Mon Sep 17 00:00:00 2001 From: Alaa Hleihel Date: Mon, 3 Sep 2018 10:38:14 +0300 Subject: [PATCH 1034/1762] net/mlx5: Check for SQ and not RQ state when modifying hairpin SQ When modifying hairpin SQ, instead of checking if the next state equals to MLX5_SQC_STATE_RDY, we compare it against the MLX5_RQC_STATE_RDY enum value. The code worked since both of MLX5_RQC_STATE_RDY and MLX5_SQC_STATE_RDY have the same value today. This patch fixes this issue. Fixes: 18e568c390c6 ("net/mlx5: Hairpin pair core object setup") Change-Id: I6758aa7b4bd137966ae28206b70648c5bc223b46 Signed-off-by: Alaa Hleihel Reviewed-by: Or Gerlitz Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/transobj.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/transobj.c b/drivers/net/ethernet/mellanox/mlx5/core/transobj.c index dae1c5c5d27c..d2f76070ea7c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/transobj.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/transobj.c @@ -509,7 +509,7 @@ static int mlx5_hairpin_modify_sq(struct mlx5_core_dev *peer_mdev, u32 sqn, sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx); - if (next_state == MLX5_RQC_STATE_RDY) { + if (next_state == MLX5_SQC_STATE_RDY) { MLX5_SET(sqc, sqc, hairpin_peer_rq, peer_rq); MLX5_SET(sqc, sqc, hairpin_peer_vhca, peer_vhca); } From 8f92e35aff9692028279d3c03e88547df6d15020 Mon Sep 17 00:00:00 2001 From: Saeed Mahameed Date: Sat, 15 Sep 2018 00:50:02 -0700 Subject: [PATCH 1035/1762] net/mlx5e: TLS, Read capabilities only when it is safe Read TLS caps from the core driver only when TLS is supported, i.e mlx5_accel_is_tls_device returns true. Fixes: 790af90c00d2 ("net/mlx5e: TLS, build TLS netdev from capabilities") Change-Id: I5f21ff4d684901af487e366a7e0cf032b54ee9cf Reported-by: Michal Kubecek Signed-off-by: Saeed Mahameed Reviewed-by: Boris Pismenny Reviewed-by: Tariq Toukan --- drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c index eddd7702680b..e88340e196f7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c @@ -183,12 +183,13 @@ static const struct tlsdev_ops mlx5e_tls_ops = { void mlx5e_tls_build_netdev(struct mlx5e_priv *priv) { - u32 caps = mlx5_accel_tls_device_caps(priv->mdev); struct net_device *netdev = priv->netdev; + u32 caps; if (!mlx5_accel_is_tls_device(priv->mdev)) return; + caps = mlx5_accel_tls_device_caps(priv->mdev); if (caps & MLX5_ACCEL_TLS_TX) { netdev->features |= NETIF_F_HW_TLS_TX; netdev->hw_features |= NETIF_F_HW_TLS_TX; From 83f365554e47997ec68dc4eca3f5dce525cd15c3 Mon Sep 17 00:00:00 2001 From: Vaibhav Nagarnaik Date: Fri, 7 Sep 2018 15:31:29 -0700 Subject: [PATCH 1036/1762] ring-buffer: Allow for rescheduling when removing pages When reducing ring buffer size, pages are removed by scheduling a work item on each CPU for the corresponding CPU ring buffer. After the pages are removed from ring buffer linked list, the pages are free()d in a tight loop. The loop does not give up CPU until all pages are removed. In a worst case behavior, when lot of pages are to be freed, it can cause system stall. After the pages are removed from the list, the free() can happen while the work is rescheduled. Call cond_resched() in the loop to prevent the system hangup. Link: http://lkml.kernel.org/r/20180907223129.71994-1-vnagarnaik@google.com Cc: stable@vger.kernel.org Fixes: 83f40318dab00 ("ring-buffer: Make removal of ring buffer pages atomic") Reported-by: Jason Behmer Signed-off-by: Vaibhav Nagarnaik Signed-off-by: Steven Rostedt (VMware) --- kernel/trace/ring_buffer.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 1d92d4a982fd..65bd4616220d 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1546,6 +1546,8 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned long nr_pages) tmp_iter_page = first_page; do { + cond_resched(); + to_remove_page = tmp_iter_page; rb_inc_page(cpu_buffer, &tmp_iter_page); From 3c499ea0c662e2f38aafbd4f516b08aab8cfa0e5 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Mon, 17 Sep 2018 13:37:33 -0400 Subject: [PATCH 1037/1762] drm/atomic: Use drm_drv_uses_atomic_modeset() for debugfs creation As pointed out by Daniel Vetter, we should be usinng drm_drv_uses_atomic_modeset() for determining whether or not we want to make the debugfs nodes for atomic instead of checking DRIVER_ATOMIC, as the former isn't an accurate representation of whether or not the driver is actually using atomic modesetting internally (even though it might not be exposing atomic capabilities). Signed-off-by: Lyude Paul Cc: Daniel Vetter Cc: stable@vger.kernel.org Reviewed-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20180917173733.21293-1-lyude@redhat.com --- drivers/gpu/drm/drm_atomic.c | 2 +- drivers/gpu/drm/drm_debugfs.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 3eb061e11e2e..018fcdb353d2 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -2067,7 +2067,7 @@ static void __drm_state_dump(struct drm_device *dev, struct drm_printer *p, struct drm_connector *connector; struct drm_connector_list_iter conn_iter; - if (!drm_core_check_feature(dev, DRIVER_ATOMIC)) + if (!drm_drv_uses_atomic_modeset(dev)) return; list_for_each_entry(plane, &config->plane_list, head) { diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c index 6f28fe58f169..373bd4c2b698 100644 --- a/drivers/gpu/drm/drm_debugfs.c +++ b/drivers/gpu/drm/drm_debugfs.c @@ -151,7 +151,7 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id, return ret; } - if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { + if (drm_drv_uses_atomic_modeset(dev)) { ret = drm_atomic_debugfs_init(minor); if (ret) { DRM_ERROR("Failed to create atomic debugfs files\n"); From 072222b488bc55cce92ff246bdc10115fd57d3ab Mon Sep 17 00:00:00 2001 From: Dominique Martinet Date: Tue, 11 Sep 2018 11:21:43 +0200 Subject: [PATCH 1038/1762] kcm: remove any offset before parsing messages The current code assumes kcm users know they need to look for the strparser offset within their bpf program, which is not documented anywhere and examples laying around do not do. The actual recv function does handle the offset well, so we can create a temporary clone of the skb and pull that one up as required for parsing. The pull itself has a cost if we are pulling beyond the head data, measured to 2-3% latency in a noisy VM with a local client stressing that path. The clone's impact seemed too small to measure. This bug can be exhibited easily by implementing a "trivial" kcm parser taking the first bytes as size, and on the client sending at least two such packets in a single write(). Note that bpf sockmap has the same problem, both for parse and for recv, so it would pulling twice or a real pull within the strparser logic if anyone cares about that. Signed-off-by: Dominique Martinet Signed-off-by: David S. Miller --- net/kcm/kcmsock.c | 26 +++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c index 571d824e4e24..36c438b95955 100644 --- a/net/kcm/kcmsock.c +++ b/net/kcm/kcmsock.c @@ -381,8 +381,32 @@ static int kcm_parse_func_strparser(struct strparser *strp, struct sk_buff *skb) { struct kcm_psock *psock = container_of(strp, struct kcm_psock, strp); struct bpf_prog *prog = psock->bpf_prog; + struct sk_buff *clone_skb = NULL; + struct strp_msg *stm; + int rc; - return (*prog->bpf_func)(skb, prog->insnsi); + stm = strp_msg(skb); + if (stm->offset) { + skb = clone_skb = skb_clone(skb, GFP_ATOMIC); + if (!clone_skb) + return -ENOMEM; + + if (!pskb_pull(clone_skb, stm->offset)) { + rc = -ENOMEM; + goto out; + } + + /* reset cloned skb's offset for bpf programs using it */ + stm = strp_msg(clone_skb); + stm->offset = 0; + } + + rc = (*prog->bpf_func)(skb, prog->insnsi); +out: + if (clone_skb) + kfree_skb(clone_skb); + + return rc; } static int kcm_read_sock_done(struct strparser *strp, int err) From 3275b4df3c39f97ee3fe982c9bafd6f3b7ff0dfe Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 17 Sep 2018 18:43:42 -0700 Subject: [PATCH 1039/1762] Revert "kcm: remove any offset before parsing messages" This reverts commit 072222b488bc55cce92ff246bdc10115fd57d3ab. I just read that this causes regressions. Signed-off-by: David S. Miller --- net/kcm/kcmsock.c | 26 +------------------------- 1 file changed, 1 insertion(+), 25 deletions(-) diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c index 36c438b95955..571d824e4e24 100644 --- a/net/kcm/kcmsock.c +++ b/net/kcm/kcmsock.c @@ -381,32 +381,8 @@ static int kcm_parse_func_strparser(struct strparser *strp, struct sk_buff *skb) { struct kcm_psock *psock = container_of(strp, struct kcm_psock, strp); struct bpf_prog *prog = psock->bpf_prog; - struct sk_buff *clone_skb = NULL; - struct strp_msg *stm; - int rc; - stm = strp_msg(skb); - if (stm->offset) { - skb = clone_skb = skb_clone(skb, GFP_ATOMIC); - if (!clone_skb) - return -ENOMEM; - - if (!pskb_pull(clone_skb, stm->offset)) { - rc = -ENOMEM; - goto out; - } - - /* reset cloned skb's offset for bpf programs using it */ - stm = strp_msg(clone_skb); - stm->offset = 0; - } - - rc = (*prog->bpf_func)(skb, prog->insnsi); -out: - if (clone_skb) - kfree_skb(clone_skb); - - return rc; + return (*prog->bpf_func)(skb, prog->insnsi); } static int kcm_read_sock_done(struct strparser *strp, int err) From 94235460f9eaefc4f0a3a4a6014fb4c6db4241cc Mon Sep 17 00:00:00 2001 From: Kai-Heng Feng Date: Wed, 12 Sep 2018 14:58:20 +0800 Subject: [PATCH 1040/1762] r8169: Align ASPM/CLKREQ setting function with vendor driver There's a small delay after setting ASPM in vendor drivers, r8101 and r8168. In addition, those drivers enable ASPM before ClkReq, also change that to align with vendor driver. I haven't seen anything bad becasue of this, but I think it's better to keep in sync with vendor driver. Signed-off-by: Kai-Heng Feng Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 1d8631303b53..8195b1f5036d 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -4775,12 +4775,14 @@ static void rtl_pcie_state_l2l3_enable(struct rtl8169_private *tp, bool enable) static void rtl_hw_aspm_clkreq_enable(struct rtl8169_private *tp, bool enable) { if (enable) { - RTL_W8(tp, Config2, RTL_R8(tp, Config2) | ClkReqEn); RTL_W8(tp, Config5, RTL_R8(tp, Config5) | ASPM_en); + RTL_W8(tp, Config2, RTL_R8(tp, Config2) | ClkReqEn); } else { RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~ClkReqEn); RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~ASPM_en); } + + udelay(10); } static void rtl_hw_start_8168bb(struct rtl8169_private *tp) From 0866cd15029baa3331ba347794053472306e8eb3 Mon Sep 17 00:00:00 2001 From: Kai-Heng Feng Date: Wed, 12 Sep 2018 14:58:21 +0800 Subject: [PATCH 1041/1762] r8169: enable ASPM on RTL8106E The Intel SoC was prevented from entering lower idle state because of RTL8106E's ASPM was not enabled. So enable ASPM on RTL8106E (chip version 39). Now the Intel SoC can enter lower idle state, power consumption and temperature are much lower. Signed-off-by: Kai-Heng Feng Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 8195b1f5036d..b0a803e96634 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -5627,6 +5627,8 @@ static void rtl_hw_start_8402(struct rtl8169_private *tp) static void rtl_hw_start_8106(struct rtl8169_private *tp) { + rtl_hw_aspm_clkreq_enable(tp, false); + /* Force LAN exit from ASPM if Rx/Tx are not idle */ RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800); @@ -5635,6 +5637,7 @@ static void rtl_hw_start_8106(struct rtl8169_private *tp) RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN); rtl_pcie_state_l2l3_enable(tp, false); + rtl_hw_aspm_clkreq_enable(tp, true); } static void rtl_hw_start_8101(struct rtl8169_private *tp) From b1e3454d39f992e5409cd19f97782185950df6e7 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 12 Sep 2018 11:34:54 +0200 Subject: [PATCH 1042/1762] clk: x86: add "ether_clk" alias for Bay Trail / Cherry Trail Commit d31fd43c0f9a ("clk: x86: Do not gate clocks enabled by the firmware") causes all unclaimed PMC clocks on Cherry Trail devices to be on all the time, resulting on the device not being able to reach S0i2 or S0i3 when suspended. The reason for this commit is that on some Bay Trail / Cherry Trail devices the ethernet controller uses pmc_plt_clk_4. This commit adds an "ether_clk" alias, so that the relevant ethernet drivers can try to (optionally) use this, without needing X86 specific code / hacks, thus fixing ethernet on these devices without breaking S0i3 support. This commit uses clkdev_hw_create() to create the alias, mirroring the code for the already existing "mclk" alias for pmc_plt_clk_3. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=193891#c102 Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=196861 Cc: Johannes Stezenbach Cc: Carlo Caione Reported-by: Johannes Stezenbach Acked-by: Stephen Boyd Reviewed-by: Andy Shevchenko Signed-off-by: Hans de Goede Signed-off-by: David S. Miller --- drivers/clk/x86/clk-pmc-atom.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/clk/x86/clk-pmc-atom.c b/drivers/clk/x86/clk-pmc-atom.c index 08ef69945ffb..75151901ff7d 100644 --- a/drivers/clk/x86/clk-pmc-atom.c +++ b/drivers/clk/x86/clk-pmc-atom.c @@ -55,6 +55,7 @@ struct clk_plt_data { u8 nparents; struct clk_plt *clks[PMC_CLK_NUM]; struct clk_lookup *mclk_lookup; + struct clk_lookup *ether_clk_lookup; }; /* Return an index in parent table */ @@ -351,11 +352,20 @@ static int plt_clk_probe(struct platform_device *pdev) goto err_unreg_clk_plt; } + data->ether_clk_lookup = clkdev_hw_create(&data->clks[4]->hw, + "ether_clk", NULL); + if (!data->ether_clk_lookup) { + err = -ENOMEM; + goto err_drop_mclk; + } + plt_clk_free_parent_names_loop(parent_names, data->nparents); platform_set_drvdata(pdev, data); return 0; +err_drop_mclk: + clkdev_drop(data->mclk_lookup); err_unreg_clk_plt: plt_clk_unregister_loop(data, i); plt_clk_unregister_parents(data); @@ -369,6 +379,7 @@ static int plt_clk_remove(struct platform_device *pdev) data = platform_get_drvdata(pdev); + clkdev_drop(data->ether_clk_lookup); clkdev_drop(data->mclk_lookup); plt_clk_unregister_loop(data, PMC_CLK_NUM); plt_clk_unregister_parents(data); From c2f6f3ee7f22521fabc3295f51149bc3f4dd9202 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 12 Sep 2018 11:34:55 +0200 Subject: [PATCH 1043/1762] r8169: Get and enable optional ether_clk clock On some boards a platform clock is used as clock for the r8169 chip, this commit adds support for getting and enabling this clock (assuming it has an "ether_clk" alias set on it). This is related to commit d31fd43c0f9a ("clk: x86: Do not gate clocks enabled by the firmware") which is a previous attempt to fix this for some x86 boards, but this causes all Cherry Trail SoC using boards to not reach there lowest power states when suspending. This commit (together with an atom-pmc-clk driver commit adding the alias) fixes things properly by making the r8169 get the clock and enable it when it needs it. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=193891#c102 Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=196861 Cc: Johannes Stezenbach Cc: Carlo Caione Reported-by: Johannes Stezenbach Acked-by: Stephen Boyd Reviewed-by: Andy Shevchenko Signed-off-by: Hans de Goede Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 33 ++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index b0a803e96634..bb529ff2ca81 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -665,6 +666,7 @@ struct rtl8169_private { u16 event_slow; const struct rtl_coalesce_info *coalesce_info; + struct clk *clk; struct mdio_ops { void (*write)(struct rtl8169_private *, int, int); @@ -7262,6 +7264,11 @@ static int rtl_jumbo_max(struct rtl8169_private *tp) } } +static void rtl_disable_clk(void *data) +{ + clk_disable_unprepare(data); +} + static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data; @@ -7282,6 +7289,32 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT); tp->supports_gmii = cfg->has_gmii; + /* Get the *optional* external "ether_clk" used on some boards */ + tp->clk = devm_clk_get(&pdev->dev, "ether_clk"); + if (IS_ERR(tp->clk)) { + rc = PTR_ERR(tp->clk); + if (rc == -ENOENT) { + /* clk-core allows NULL (for suspend / resume) */ + tp->clk = NULL; + } else if (rc == -EPROBE_DEFER) { + return rc; + } else { + dev_err(&pdev->dev, "failed to get clk: %d\n", rc); + return rc; + } + } else { + rc = clk_prepare_enable(tp->clk); + if (rc) { + dev_err(&pdev->dev, "failed to enable clk: %d\n", rc); + return rc; + } + + rc = devm_add_action_or_reset(&pdev->dev, rtl_disable_clk, + tp->clk); + if (rc) + return rc; + } + /* enable device (incl. PCI PM wakeup and hotplug setup) */ rc = pcim_enable_device(pdev); if (rc < 0) { From 648e921888ad96ea3dc922739e96716ad3225d7f Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 12 Sep 2018 11:34:56 +0200 Subject: [PATCH 1044/1762] clk: x86: Stop marking clocks as CLK_IS_CRITICAL Commit d31fd43c0f9a ("clk: x86: Do not gate clocks enabled by the firmware"), which added the code to mark clocks as CLK_IS_CRITICAL, causes all unclaimed PMC clocks on Cherry Trail devices to be on all the time, resulting on the device not being able to reach S0i3 when suspended. The reason for this commit is that on some Bay Trail / Cherry Trail devices the r8169 ethernet controller uses pmc_plt_clk_4. Now that the clk-pmc-atom driver exports an "ether_clk" alias for pmc_plt_clk_4 and the r8169 driver has been modified to get and enable this clock (if present) the marking of the clocks as CLK_IS_CRITICAL is no longer necessary. This commit removes the CLK_IS_CRITICAL marking, fixing Cherry Trail devices not being able to reach S0i3 greatly decreasing their battery drain when suspended. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=193891#c102 Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=196861 Cc: Johannes Stezenbach Cc: Carlo Caione Reported-by: Johannes Stezenbach Reviewed-by: Andy Shevchenko Acked-by: Stephen Boyd Signed-off-by: Hans de Goede Signed-off-by: David S. Miller --- drivers/clk/x86/clk-pmc-atom.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/clk/x86/clk-pmc-atom.c b/drivers/clk/x86/clk-pmc-atom.c index 75151901ff7d..d977193842df 100644 --- a/drivers/clk/x86/clk-pmc-atom.c +++ b/drivers/clk/x86/clk-pmc-atom.c @@ -187,13 +187,6 @@ static struct clk_plt *plt_clk_register(struct platform_device *pdev, int id, pclk->reg = base + PMC_CLK_CTL_OFFSET + id * PMC_CLK_CTL_SIZE; spin_lock_init(&pclk->lock); - /* - * If the clock was already enabled by the firmware mark it as critical - * to avoid it being gated by the clock framework if no driver owns it. - */ - if (plt_clk_is_enabled(&pclk->hw)) - init.flags |= CLK_IS_CRITICAL; - ret = devm_clk_hw_register(&pdev->dev, &pclk->hw); if (ret) { pclk = ERR_PTR(ret); From 922005c7f50e7f4b2a6dbc182e9c575b4f92396b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Mon, 17 Sep 2018 22:00:24 +0200 Subject: [PATCH 1045/1762] qmi_wwan: set DTR for modems in forced USB2 mode MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Recent firmware revisions have added the ability to force these modems to USB2 mode, hiding their SuperSpeed capabilities from the host. The driver has been using the SuperSpeed capability, as shown by the bcdUSB field of the device descriptor, to detect the need to enable the DTR quirk. This method fails when the modems are forced to USB2 mode by the modem firmware. Fix by unconditionally enabling the DTR quirk for the affected device IDs. Reported-by: Fred Veldini Reported-by: Deshu Wen Signed-off-by: Bjørn Mork Reported-by: Fred Veldini Reported-by: Deshu Wen Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index e3270deecec2..533b6fb8d923 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -1213,13 +1213,13 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x1199, 0x9061, 8)}, /* Sierra Wireless Modem */ {QMI_FIXED_INTF(0x1199, 0x9063, 8)}, /* Sierra Wireless EM7305 */ {QMI_FIXED_INTF(0x1199, 0x9063, 10)}, /* Sierra Wireless EM7305 */ - {QMI_FIXED_INTF(0x1199, 0x9071, 8)}, /* Sierra Wireless MC74xx */ - {QMI_FIXED_INTF(0x1199, 0x9071, 10)}, /* Sierra Wireless MC74xx */ - {QMI_FIXED_INTF(0x1199, 0x9079, 8)}, /* Sierra Wireless EM74xx */ - {QMI_FIXED_INTF(0x1199, 0x9079, 10)}, /* Sierra Wireless EM74xx */ - {QMI_FIXED_INTF(0x1199, 0x907b, 8)}, /* Sierra Wireless EM74xx */ - {QMI_FIXED_INTF(0x1199, 0x907b, 10)}, /* Sierra Wireless EM74xx */ - {QMI_FIXED_INTF(0x1199, 0x9091, 8)}, /* Sierra Wireless EM7565 */ + {QMI_QUIRK_SET_DTR(0x1199, 0x9071, 8)}, /* Sierra Wireless MC74xx */ + {QMI_QUIRK_SET_DTR(0x1199, 0x9071, 10)},/* Sierra Wireless MC74xx */ + {QMI_QUIRK_SET_DTR(0x1199, 0x9079, 8)}, /* Sierra Wireless EM74xx */ + {QMI_QUIRK_SET_DTR(0x1199, 0x9079, 10)},/* Sierra Wireless EM74xx */ + {QMI_QUIRK_SET_DTR(0x1199, 0x907b, 8)}, /* Sierra Wireless EM74xx */ + {QMI_QUIRK_SET_DTR(0x1199, 0x907b, 10)},/* Sierra Wireless EM74xx */ + {QMI_QUIRK_SET_DTR(0x1199, 0x9091, 8)}, /* Sierra Wireless EM7565 */ {QMI_FIXED_INTF(0x1bbb, 0x011e, 4)}, /* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */ {QMI_FIXED_INTF(0x1bbb, 0x0203, 2)}, /* Alcatel L800MA */ {QMI_FIXED_INTF(0x2357, 0x0201, 4)}, /* TP-LINK HSUPA Modem MA180 */ From db7c8f1e5f1c1a5e1aaec04e50be6721c1cb4dff Mon Sep 17 00:00:00 2001 From: Colin Xu Date: Mon, 17 Sep 2018 12:19:03 +0800 Subject: [PATCH 1046/1762] drm/i915/gvt: Init PHY related registers for BXT Recent patch fixed the call trace "ERROR Port B enabled but PHY powered down? (PHY_CTL 00000000)". but introduced another similar call trace shown as: "ERROR Port C enabled but PHY powered down? (PHY_CTL 00000200)". The call trace will appear when host and guest enabled different ports, i.e. host using PORT C or neither PORT is enabled, while guest is always using PORT B as simulated by gvt. The issue is actually covered previously before the commit and reverals now when the commit do the right thing. On BXT, some PHY registers are initialized by vbios, before i915 loaded. Later i915 will re-program some, or skip some based on the implementation. The initialized mmio for guest i915 is done by gvt, based on the snapshot taken from host. If host and guest have different PORT enabled, some DPIO PHY mmios that gvt initialized for guest i915 will not match the simualted monitor for guest, which leads to guest i915 print the calltrace when it's trying to enable PHY and PORT. The solution is to init these DPIO PHY registers to default value, then guest i915 will program them to reasonable value based on the default powerwell table and enabled PORT. Together with the old patch, all similar call trace in guest kernel on BXT can be resolved. v2: Move PHY register init to intel_vgpu_reset_mmio (Min) v3: Do not delete empty line in issue fix patch. (zhenyu) Fixes: c8ab5ac30ccc ("drm/i915/gvt: Make correct handling to vreg BXT_PHY_CTL_FAMILY") Reviewed-by: He, Min Signed-off-by: Colin Xu Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/mmio.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/gpu/drm/i915/gvt/mmio.c b/drivers/gpu/drm/i915/gvt/mmio.c index 994366035364..9bb9a85c992c 100644 --- a/drivers/gpu/drm/i915/gvt/mmio.c +++ b/drivers/gpu/drm/i915/gvt/mmio.c @@ -244,6 +244,34 @@ void intel_vgpu_reset_mmio(struct intel_vgpu *vgpu, bool dmlr) /* set the bit 0:2(Core C-State ) to C0 */ vgpu_vreg_t(vgpu, GEN6_GT_CORE_STATUS) = 0; + + if (IS_BROXTON(vgpu->gvt->dev_priv)) { + vgpu_vreg_t(vgpu, BXT_P_CR_GT_DISP_PWRON) &= + ~(BIT(0) | BIT(1)); + vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY0)) &= + ~PHY_POWER_GOOD; + vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY1)) &= + ~PHY_POWER_GOOD; + vgpu_vreg_t(vgpu, BXT_PHY_CTL_FAMILY(DPIO_PHY0)) &= + ~BIT(30); + vgpu_vreg_t(vgpu, BXT_PHY_CTL_FAMILY(DPIO_PHY1)) &= + ~BIT(30); + vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_A)) &= + ~BXT_PHY_LANE_ENABLED; + vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_A)) |= + BXT_PHY_CMNLANE_POWERDOWN_ACK | + BXT_PHY_LANE_POWERDOWN_ACK; + vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_B)) &= + ~BXT_PHY_LANE_ENABLED; + vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_B)) |= + BXT_PHY_CMNLANE_POWERDOWN_ACK | + BXT_PHY_LANE_POWERDOWN_ACK; + vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_C)) &= + ~BXT_PHY_LANE_ENABLED; + vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_C)) |= + BXT_PHY_CMNLANE_POWERDOWN_ACK | + BXT_PHY_LANE_POWERDOWN_ACK; + } } else { #define GVT_GEN8_MMIO_RESET_OFFSET (0x44200) /* only reset the engine related, so starting with 0x44200 From d817de3bc186c305b8e72a52547df2971c06499d Mon Sep 17 00:00:00 2001 From: Colin Xu Date: Fri, 14 Sep 2018 15:12:23 +0800 Subject: [PATCH 1047/1762] drm/i915/gvt: Add GEN9_CLKGATE_DIS_4 to default BXT mmio handler Host prints lots of untracked MMIO at 0x4653c when creating linux guest. "gvt: vgpu 2: untracked MMIO 0004653c len 4" GEN9_CLKGATE_DIS_4 (0x4653c) is accessed by i915 for gmbus clockgating. However vgpu doesn't support any clockgating powergating operations on related mmio access trap so need add it to default handler. GEN9_CLKGATE_DIS_4 is accessed in bxt_gmbus_clock_gating() which only applies to GEN9_LP so doens't show the warning on other platforms. The solution is to add it to default handler init_bxt_mmio_info(). Reviewed-by: He, Min Signed-off-by: Colin Xu Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index 72afa518edd9..94c1089ecf59 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -3210,6 +3210,7 @@ static int init_bxt_mmio_info(struct intel_gvt *gvt) MMIO_D(BXT_DSI_PLL_ENABLE, D_BXT); MMIO_D(GEN9_CLKGATE_DIS_0, D_BXT); + MMIO_D(GEN9_CLKGATE_DIS_4, D_BXT); MMIO_D(HSW_TVIDEO_DIP_GCP(TRANSCODER_A), D_BXT); MMIO_D(HSW_TVIDEO_DIP_GCP(TRANSCODER_B), D_BXT); From a1ac5f0943019bfd76345fe05a42cbc400da685c Mon Sep 17 00:00:00 2001 From: Weinan Li Date: Mon, 17 Sep 2018 09:46:14 +0800 Subject: [PATCH 1048/1762] drm/i915/gvt: request srcu_read_lock before checking if one gfn is valid Fix the suspicious RCU usage issue in intel_vgpu_emulate_mmio_write. Here need to request the srcu read lock of kvm->srcu before doing gfn_to_memslot(). The detailed log is as below: [ 218.710688] ============================= [ 218.710690] WARNING: suspicious RCU usage [ 218.710693] 4.14.15-dd+ #314 Tainted: G U [ 218.710695] ----------------------------- [ 218.710697] ./include/linux/kvm_host.h:575 suspicious rcu_dereference_check() usage! [ 218.710699] other info that might help us debug this: [ 218.710702] rcu_scheduler_active = 2, debug_locks = 1 [ 218.710704] 1 lock held by qemu-system-x86/2144: [ 218.710706] #0: (&gvt->lock){+.+.}, at: [] intel_vgpu_emulate_mmio_write+0x5a/0x2d0 [ 218.710721] stack backtrace: [ 218.710724] CPU: 0 PID: 2144 Comm: qemu-system-x86 Tainted: G U 4.14.15-dd+ #314 [ 218.710727] Hardware name: Dell Inc. OptiPlex 7040/0Y7WYT, BIOS 1.1.1 10/07/2015 [ 218.710729] Call Trace: [ 218.710734] dump_stack+0x7c/0xb3 [ 218.710739] gfn_to_memslot+0x15f/0x170 [ 218.710743] kvm_is_visible_gfn+0xa/0x30 [ 218.710746] intel_vgpu_emulate_gtt_mmio_write+0x267/0x3c0 [ 218.710751] ? __mutex_unlock_slowpath+0x3b/0x260 [ 218.710754] intel_vgpu_emulate_mmio_write+0x182/0x2d0 [ 218.710759] intel_vgpu_rw+0xba/0x170 [kvmgt] [ 218.710763] intel_vgpu_write+0x14d/0x1a0 [kvmgt] [ 218.710767] __vfs_write+0x23/0x130 [ 218.710770] vfs_write+0xb0/0x1b0 [ 218.710774] SyS_pwrite64+0x73/0x90 [ 218.710777] entry_SYSCALL_64_fastpath+0x25/0x9c [ 218.710780] RIP: 0033:0x7f33e8a91da3 [ 218.710783] RSP: 002b:00007f33dddc8700 EFLAGS: 00000293 v2: add 'Fixes' tag, refine log format.(Zhenyu) Fixes: cc753fbe1ac4 ("drm/i915/gvt: validate gfn before set shadow page") Reviewed-by: Zhenyu Wang Signed-off-by: Weinan Li Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/kvmgt.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index c7afee37b2b8..9ad89e38f6c0 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1833,6 +1833,8 @@ static bool kvmgt_is_valid_gfn(unsigned long handle, unsigned long gfn) { struct kvmgt_guest_info *info; struct kvm *kvm; + int idx; + bool ret; if (!handle_valid(handle)) return false; @@ -1840,8 +1842,11 @@ static bool kvmgt_is_valid_gfn(unsigned long handle, unsigned long gfn) info = (struct kvmgt_guest_info *)handle; kvm = info->kvm; - return kvm_is_visible_gfn(kvm, gfn); + idx = srcu_read_lock(&kvm->srcu); + ret = kvm_is_visible_gfn(kvm, gfn); + srcu_read_unlock(&kvm->srcu, idx); + return ret; } struct intel_gvt_mpt kvmgt_mpt = { From 7759ca3aac79648d01c9edcb3b00503c02bec2f5 Mon Sep 17 00:00:00 2001 From: Zhipeng Gong Date: Mon, 17 Sep 2018 15:45:08 +0800 Subject: [PATCH 1049/1762] drm/i915/gvt: clear ggtt entries when destroy vgpu When one vgpu is destroyed, its ggtt entries are not cleared. This patch clears ggtt entries to avoid information leak. v2: add 'Fixes' tag (Zhenyu) Fixes: 2707e4446688 ("drm/i915/gvt: vGPU graphics memory virtualization") Signed-off-by: Zhipeng Gong Reviewed-by: Hang Yuan Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/vgpu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c index a4e8e3cf74fd..c628be05fbfe 100644 --- a/drivers/gpu/drm/i915/gvt/vgpu.c +++ b/drivers/gpu/drm/i915/gvt/vgpu.c @@ -281,6 +281,7 @@ void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu) intel_vgpu_clean_submission(vgpu); intel_vgpu_clean_display(vgpu); intel_vgpu_clean_opregion(vgpu); + intel_vgpu_reset_ggtt(vgpu, true); intel_vgpu_clean_gtt(vgpu); intel_gvt_hypervisor_detach_vgpu(vgpu); intel_vgpu_free_resource(vgpu); From 30bfd93062814d6767e452a8f5ddcd97f7e38c7e Mon Sep 17 00:00:00 2001 From: Peter Oskolkov Date: Mon, 17 Sep 2018 10:20:53 -0700 Subject: [PATCH 1050/1762] net/ipv6: do not copy dst flags on rt init DST_NOCOUNT in dst_entry::flags tracks whether the entry counts toward route cache size (net->ipv6.sysctl.ip6_rt_max_size). If the flag is NOT set, dst_ops::pcpuc_entries counter is incremented in dist_init() and decremented in dst_destroy(). This flag is tied to allocation/deallocation of dst_entry and should not be copied from another dst/route. Otherwise it can happen that dst_ops::pcpuc_entries counter grows until no new routes can be allocated because the counter reached ip6_rt_max_size due to DST_NOCOUNT not set and thus no counter decrements on gc-ed routes. Fixes: 3b6761d18bc1 ("net/ipv6: Move dst flags to booleans in fib entries") Cc: David Ahern Acked-by: Wei Wang Signed-off-by: Peter Oskolkov Reviewed-by: David Ahern Signed-off-by: David S. Miller --- net/ipv6/route.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 3eed045c65a5..480a79f47c52 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -946,8 +946,6 @@ static void ip6_rt_init_dst_reject(struct rt6_info *rt, struct fib6_info *ort) static void ip6_rt_init_dst(struct rt6_info *rt, struct fib6_info *ort) { - rt->dst.flags |= fib6_info_dst_flags(ort); - if (ort->fib6_flags & RTF_REJECT) { ip6_rt_init_dst_reject(rt, ort); return; From b592211c33f745af67a3271ce77c10fc1e6d6241 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Mon, 17 Sep 2018 11:38:47 -0400 Subject: [PATCH 1051/1762] dm mpath: fix attached_handler_name leak and dangling hw_handler_name pointer Commit e8f74a0f0011 ("dm mpath: eliminate need to use scsi_device_from_queue") introduced 2 regressions: 1) memory leak occurs if attached_handler_name is not assigned to m->hw_handler_name 2) m->hw_handler_name can become a dangling pointer if the RETAIN_ATTACHED_HW_HANDLER flag is set and scsi_dh_attach() returns -EBUSY. Fix both of these by clearing 'attached_handler_name' pointer passed to setup_scsi_dh() after it is assigned to m->hw_handler_name. And if setup_scsi_dh() doesn't consume 'attached_handler_name' parse_path() will kfree() it. Fixes: e8f74a0f0011 ("dm mpath: eliminate need to use scsi_device_from_queue") Cc: stable@vger.kernel.org # 4.16+ Reported-by: Bart Van Assche Signed-off-by: Mike Snitzer --- drivers/md/dm-mpath.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index d94ba6f72ff5..419362c2d8ac 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -806,19 +806,19 @@ static int parse_path_selector(struct dm_arg_set *as, struct priority_group *pg, } static int setup_scsi_dh(struct block_device *bdev, struct multipath *m, - const char *attached_handler_name, char **error) + const char **attached_handler_name, char **error) { struct request_queue *q = bdev_get_queue(bdev); int r; if (test_bit(MPATHF_RETAIN_ATTACHED_HW_HANDLER, &m->flags)) { retain: - if (attached_handler_name) { + if (*attached_handler_name) { /* * Clear any hw_handler_params associated with a * handler that isn't already attached. */ - if (m->hw_handler_name && strcmp(attached_handler_name, m->hw_handler_name)) { + if (m->hw_handler_name && strcmp(*attached_handler_name, m->hw_handler_name)) { kfree(m->hw_handler_params); m->hw_handler_params = NULL; } @@ -830,7 +830,8 @@ retain: * handler instead of the original table passed in. */ kfree(m->hw_handler_name); - m->hw_handler_name = attached_handler_name; + m->hw_handler_name = *attached_handler_name; + *attached_handler_name = NULL; } } @@ -867,7 +868,7 @@ static struct pgpath *parse_path(struct dm_arg_set *as, struct path_selector *ps struct pgpath *p; struct multipath *m = ti->private; struct request_queue *q; - const char *attached_handler_name; + const char *attached_handler_name = NULL; /* we need at least a path arg */ if (as->argc < 1) { @@ -890,7 +891,7 @@ static struct pgpath *parse_path(struct dm_arg_set *as, struct path_selector *ps attached_handler_name = scsi_dh_attached_handler_name(q, GFP_KERNEL); if (attached_handler_name || m->hw_handler_name) { INIT_DELAYED_WORK(&p->activate_path, activate_path_work); - r = setup_scsi_dh(p->path.dev->bdev, m, attached_handler_name, &ti->error); + r = setup_scsi_dh(p->path.dev->bdev, m, &attached_handler_name, &ti->error); if (r) { dm_put_device(ti, p->path.dev); goto bad; @@ -905,6 +906,7 @@ static struct pgpath *parse_path(struct dm_arg_set *as, struct path_selector *ps return p; bad: + kfree(attached_handler_name); free_pgpath(p); return ERR_PTR(r); } From 0328ba90407c82874f9f39f9a5a6e5ad6cb76f44 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 17 Sep 2018 10:02:34 +0200 Subject: [PATCH 1052/1762] dm raid: remove bogus const from decipher_sync_action() return type With gcc-4.1.2: drivers/md/dm-raid.c:3357: warning: type qualifiers ignored on function return type Remove the "const" keyword to fix this. Fixes: 36a240a706d43383 ("dm raid: fix RAID leg rebuild errors") Signed-off-by: Geert Uytterhoeven Acked-by: Heinz Mauelshagen Signed-off-by: Mike Snitzer --- drivers/md/dm-raid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 5ba067fa0c72..c44925e4e481 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3353,7 +3353,7 @@ static const char *sync_str(enum sync_state state) }; /* Return enum sync_state for @mddev derived from @recovery flags */ -static const enum sync_state decipher_sync_action(struct mddev *mddev, unsigned long recovery) +static enum sync_state decipher_sync_action(struct mddev *mddev, unsigned long recovery) { if (test_bit(MD_RECOVERY_FROZEN, &recovery)) return st_frozen; From 4a3e85f2674cbfb81052059107d0165269778e2f Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Mon, 17 Sep 2018 16:31:30 +0200 Subject: [PATCH 1053/1762] mtd: devices: m25p80: Make sure the buffer passed in op is DMA-able As documented in spi-mem.h, spi_mem_op->data.buf.{in,out} must be DMA-able, and commit 4120f8d158ef ("mtd: spi-nor: Use the spi_mem_xx() API") failed to follow this rule as buffers passed to ->{read,write}_reg() are usually placed on the stack. Fix that by allocating a scratch buffer and copying the data around. Fixes: 4120f8d158ef ("mtd: spi-nor: Use the spi_mem_xx() API") Reported-by: Jarkko Nikula Cc: Signed-off-by: Boris Brezillon Tested-by: Jarkko Nikula Reviewed-by: Jarkko Nikula --- drivers/mtd/devices/m25p80.c | 26 +++++++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index cbfafc453274..270d3c9580c5 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -39,13 +39,23 @@ static int m25p80_read_reg(struct spi_nor *nor, u8 code, u8 *val, int len) struct spi_mem_op op = SPI_MEM_OP(SPI_MEM_OP_CMD(code, 1), SPI_MEM_OP_NO_ADDR, SPI_MEM_OP_NO_DUMMY, - SPI_MEM_OP_DATA_IN(len, val, 1)); + SPI_MEM_OP_DATA_IN(len, NULL, 1)); + void *scratchbuf; int ret; + scratchbuf = kmalloc(len, GFP_KERNEL); + if (!scratchbuf) + return -ENOMEM; + + op.data.buf.in = scratchbuf; ret = spi_mem_exec_op(flash->spimem, &op); if (ret < 0) dev_err(&flash->spimem->spi->dev, "error %d reading %x\n", ret, code); + else + memcpy(val, scratchbuf, len); + + kfree(scratchbuf); return ret; } @@ -56,9 +66,19 @@ static int m25p80_write_reg(struct spi_nor *nor, u8 opcode, u8 *buf, int len) struct spi_mem_op op = SPI_MEM_OP(SPI_MEM_OP_CMD(opcode, 1), SPI_MEM_OP_NO_ADDR, SPI_MEM_OP_NO_DUMMY, - SPI_MEM_OP_DATA_OUT(len, buf, 1)); + SPI_MEM_OP_DATA_OUT(len, NULL, 1)); + void *scratchbuf; + int ret; - return spi_mem_exec_op(flash->spimem, &op); + scratchbuf = kmemdup(buf, len, GFP_KERNEL); + if (!scratchbuf) + return -ENOMEM; + + op.data.buf.out = scratchbuf; + ret = spi_mem_exec_op(flash->spimem, &op); + kfree(scratchbuf); + + return ret; } static ssize_t m25p80_write(struct spi_nor *nor, loff_t to, size_t len, From 57078338b2e4c07fb76bef23369cae0acfb1f7bc Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 18 Sep 2018 16:20:18 +1000 Subject: [PATCH 1054/1762] drm: fix drm_drv_uses_atomic_modeset on non modesetting drivers. vgem seems to oops on the intel CI due to the vgem debugfs init hitting this path now. Check if we have mode_config funcs before checking one. Signed-off-by: Dave Airlie Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20180918062018.24942-1-airlied@gmail.com --- include/drm/drm_drv.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h index 46a8009784df..152b3055e9e1 100644 --- a/include/drm/drm_drv.h +++ b/include/drm/drm_drv.h @@ -675,7 +675,7 @@ static inline bool drm_core_check_feature(struct drm_device *dev, int feature) static inline bool drm_drv_uses_atomic_modeset(struct drm_device *dev) { return drm_core_check_feature(dev, DRIVER_ATOMIC) || - dev->mode_config.funcs->atomic_commit != NULL; + (dev->mode_config.funcs && dev->mode_config.funcs->atomic_commit != NULL); } From ffc4c92227db5699493e43eb140b4cb5904c30ff Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher Date: Tue, 18 Sep 2018 00:36:36 -0400 Subject: [PATCH 1055/1762] sysfs: Do not return POSIX ACL xattrs via listxattr MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 786534b92f3c introduced a regression that caused listxattr to return the POSIX ACL attribute names even though sysfs doesn't support POSIX ACLs. This happens because simple_xattr_list checks for NULL i_acl / i_default_acl, but inode_init_always initializes those fields to ACL_NOT_CACHED ((void *)-1). For example: $ getfattr -m- -d /sys /sys: system.posix_acl_access: Operation not supported /sys: system.posix_acl_default: Operation not supported Fix this in simple_xattr_list by checking if the filesystem supports POSIX ACLs. Fixes: 786534b92f3c ("tmpfs: listxattr should include POSIX ACL xattrs") Reported-by: Marc Aurèle La France Tested-by: Marc Aurèle La France Signed-off-by: Andreas Gruenbacher Cc: stable@vger.kernel.org # v4.5+ Signed-off-by: Al Viro --- fs/xattr.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/fs/xattr.c b/fs/xattr.c index daa732550088..0d6a6a4af861 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -948,17 +948,19 @@ ssize_t simple_xattr_list(struct inode *inode, struct simple_xattrs *xattrs, int err = 0; #ifdef CONFIG_FS_POSIX_ACL - if (inode->i_acl) { - err = xattr_list_one(&buffer, &remaining_size, - XATTR_NAME_POSIX_ACL_ACCESS); - if (err) - return err; - } - if (inode->i_default_acl) { - err = xattr_list_one(&buffer, &remaining_size, - XATTR_NAME_POSIX_ACL_DEFAULT); - if (err) - return err; + if (IS_POSIXACL(inode)) { + if (inode->i_acl) { + err = xattr_list_one(&buffer, &remaining_size, + XATTR_NAME_POSIX_ACL_ACCESS); + if (err) + return err; + } + if (inode->i_default_acl) { + err = xattr_list_one(&buffer, &remaining_size, + XATTR_NAME_POSIX_ACL_DEFAULT); + if (err) + return err; + } } #endif From 51c3c62b58b357e8d35e4cc32f7b4ec907426fe3 Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Fri, 14 Sep 2018 11:14:11 +1000 Subject: [PATCH 1056/1762] powerpc: Avoid code patching freed init sections This stops us from doing code patching in init sections after they've been freed. In this chain: kvm_guest_init() -> kvm_use_magic_page() -> fault_in_pages_readable() -> __get_user() -> __get_user_nocheck() -> barrier_nospec(); We have a code patching location at barrier_nospec() and kvm_guest_init() is an init function. This whole chain gets inlined, so when we free the init section (hence kvm_guest_init()), this code goes away and hence should no longer be patched. We seen this as userspace memory corruption when using a memory checker while doing partition migration testing on powervm (this starts the code patching post migration via /sys/kernel/mobility/migration). In theory, it could also happen when using /sys/kernel/debug/powerpc/barrier_nospec. Cc: stable@vger.kernel.org # 4.13+ Signed-off-by: Michael Neuling Reviewed-by: Nicholas Piggin Reviewed-by: Christophe Leroy Signed-off-by: Michael Ellerman --- arch/powerpc/include/asm/setup.h | 1 + arch/powerpc/lib/code-patching.c | 6 ++++++ arch/powerpc/mm/mem.c | 2 ++ 3 files changed, 9 insertions(+) diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h index 1a951b00465d..1fffbba8d6a5 100644 --- a/arch/powerpc/include/asm/setup.h +++ b/arch/powerpc/include/asm/setup.h @@ -9,6 +9,7 @@ extern void ppc_printk_progress(char *s, unsigned short hex); extern unsigned int rtas_data; extern unsigned long long memory_limit; +extern bool init_mem_is_free; extern unsigned long klimit; extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask); diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c index 850f3b8f4da5..6ae2777c220d 100644 --- a/arch/powerpc/lib/code-patching.c +++ b/arch/powerpc/lib/code-patching.c @@ -28,6 +28,12 @@ static int __patch_instruction(unsigned int *exec_addr, unsigned int instr, { int err; + /* Make sure we aren't patching a freed init section */ + if (init_mem_is_free && init_section_contains(exec_addr, 4)) { + pr_debug("Skipping init section patching addr: 0x%px\n", exec_addr); + return 0; + } + __put_user_size(instr, patch_addr, 4, err); if (err) return err; diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 5c8530d0c611..04ccb274a620 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -63,6 +63,7 @@ #endif unsigned long long memory_limit; +bool init_mem_is_free; #ifdef CONFIG_HIGHMEM pte_t *kmap_pte; @@ -396,6 +397,7 @@ void free_initmem(void) { ppc_md.progress = ppc_printk_progress; mark_initmem_nx(); + init_mem_is_free = true; free_initmem_default(POISON_FREE_INITMEM); } From 6d41907c630d3196be89c9ed5a7f8258486b3eaf Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 14 Sep 2018 16:47:14 -0300 Subject: [PATCH 1057/1762] tools lib bpf: Provide wrapper for strerror_r to build in !_GNU_SOURCE systems Same problem that got fixed in a similar fashion in tools/perf/ in c8b5f2c96d1b ("tools: Introduce str_error_r()"), fix it in the same way, licensing needs to be sorted out to libbpf to use libapi, so, for this simple case, just get the same wrapper in tools/lib/bpf. This makes libbpf and its users (bpftool, selftests, perf) to build again in Alpine Linux 3.[45678] and edge. Acked-by: Alexei Starovoitov Cc: Adrian Hunter Cc: Daniel Borkmann Cc: David Ahern Cc: Hendrik Brueckner Cc: Jakub Kicinski Cc: Jiri Olsa Cc: Martin KaFai Lau Cc: Namhyung Kim Cc: Quentin Monnet Cc: Thomas Richter Cc: Wang Nan Cc: Yonghong Song Fixes: 1ce6a9fc1549 ("bpf: fix build error in libbpf with EXTRA_CFLAGS="-Wp, -D_FORTIFY_SOURCE=2 -O2"") Link: https://lkml.kernel.org/r/20180917151636.GA21790@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/bpf/Build | 2 +- tools/lib/bpf/libbpf.c | 20 ++++++++++---------- tools/lib/bpf/str_error.c | 18 ++++++++++++++++++ tools/lib/bpf/str_error.h | 6 ++++++ 4 files changed, 35 insertions(+), 11 deletions(-) create mode 100644 tools/lib/bpf/str_error.c create mode 100644 tools/lib/bpf/str_error.h diff --git a/tools/lib/bpf/Build b/tools/lib/bpf/Build index 13a861135127..6eb9bacd1948 100644 --- a/tools/lib/bpf/Build +++ b/tools/lib/bpf/Build @@ -1 +1 @@ -libbpf-y := libbpf.o bpf.o nlattr.o btf.o libbpf_errno.o +libbpf-y := libbpf.o bpf.o nlattr.o btf.o libbpf_errno.o str_error.o diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 2abd0f112627..bdb94939fd60 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -50,6 +50,7 @@ #include "libbpf.h" #include "bpf.h" #include "btf.h" +#include "str_error.h" #ifndef EM_BPF #define EM_BPF 247 @@ -469,7 +470,7 @@ static int bpf_object__elf_init(struct bpf_object *obj) obj->efile.fd = open(obj->path, O_RDONLY); if (obj->efile.fd < 0) { char errmsg[STRERR_BUFSIZE]; - char *cp = strerror_r(errno, errmsg, sizeof(errmsg)); + char *cp = str_error(errno, errmsg, sizeof(errmsg)); pr_warning("failed to open %s: %s\n", obj->path, cp); return -errno; @@ -810,8 +811,7 @@ static int bpf_object__elf_collect(struct bpf_object *obj) data->d_size, name, idx); if (err) { char errmsg[STRERR_BUFSIZE]; - char *cp = strerror_r(-err, errmsg, - sizeof(errmsg)); + char *cp = str_error(-err, errmsg, sizeof(errmsg)); pr_warning("failed to alloc program %s (%s): %s", name, obj->path, cp); @@ -1140,7 +1140,7 @@ bpf_object__create_maps(struct bpf_object *obj) *pfd = bpf_create_map_xattr(&create_attr); if (*pfd < 0 && create_attr.btf_key_type_id) { - cp = strerror_r(errno, errmsg, sizeof(errmsg)); + cp = str_error(errno, errmsg, sizeof(errmsg)); pr_warning("Error in bpf_create_map_xattr(%s):%s(%d). Retrying without BTF.\n", map->name, cp, errno); create_attr.btf_fd = 0; @@ -1155,7 +1155,7 @@ bpf_object__create_maps(struct bpf_object *obj) size_t j; err = *pfd; - cp = strerror_r(errno, errmsg, sizeof(errmsg)); + cp = str_error(errno, errmsg, sizeof(errmsg)); pr_warning("failed to create map (name: '%s'): %s\n", map->name, cp); for (j = 0; j < i; j++) @@ -1339,7 +1339,7 @@ load_program(enum bpf_prog_type type, enum bpf_attach_type expected_attach_type, } ret = -LIBBPF_ERRNO__LOAD; - cp = strerror_r(errno, errmsg, sizeof(errmsg)); + cp = str_error(errno, errmsg, sizeof(errmsg)); pr_warning("load bpf program failed: %s\n", cp); if (log_buf && log_buf[0] != '\0') { @@ -1654,7 +1654,7 @@ static int check_path(const char *path) dir = dirname(dname); if (statfs(dir, &st_fs)) { - cp = strerror_r(errno, errmsg, sizeof(errmsg)); + cp = str_error(errno, errmsg, sizeof(errmsg)); pr_warning("failed to statfs %s: %s\n", dir, cp); err = -errno; } @@ -1690,7 +1690,7 @@ int bpf_program__pin_instance(struct bpf_program *prog, const char *path, } if (bpf_obj_pin(prog->instances.fds[instance], path)) { - cp = strerror_r(errno, errmsg, sizeof(errmsg)); + cp = str_error(errno, errmsg, sizeof(errmsg)); pr_warning("failed to pin program: %s\n", cp); return -errno; } @@ -1708,7 +1708,7 @@ static int make_dir(const char *path) err = -errno; if (err) { - cp = strerror_r(-err, errmsg, sizeof(errmsg)); + cp = str_error(-err, errmsg, sizeof(errmsg)); pr_warning("failed to mkdir %s: %s\n", path, cp); } return err; @@ -1770,7 +1770,7 @@ int bpf_map__pin(struct bpf_map *map, const char *path) } if (bpf_obj_pin(map->fd, path)) { - cp = strerror_r(errno, errmsg, sizeof(errmsg)); + cp = str_error(errno, errmsg, sizeof(errmsg)); pr_warning("failed to pin map: %s\n", cp); return -errno; } diff --git a/tools/lib/bpf/str_error.c b/tools/lib/bpf/str_error.c new file mode 100644 index 000000000000..b8798114a357 --- /dev/null +++ b/tools/lib/bpf/str_error.c @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: LGPL-2.1 +#undef _GNU_SOURCE +#include +#include +#include "str_error.h" + +/* + * Wrapper to allow for building in non-GNU systems such as Alpine Linux's musl + * libc, while checking strerror_r() return to avoid having to check this in + * all places calling it. + */ +char *str_error(int err, char *dst, int len) +{ + int ret = strerror_r(err, dst, len); + if (ret) + snprintf(dst, len, "ERROR: strerror_r(%d)=%d", err, ret); + return dst; +} diff --git a/tools/lib/bpf/str_error.h b/tools/lib/bpf/str_error.h new file mode 100644 index 000000000000..355b1db571d1 --- /dev/null +++ b/tools/lib/bpf/str_error.h @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: LGPL-2.1 +#ifndef BPF_STR_ERROR +#define BPF_STR_ERROR + +char *str_error(int err, char *dst, int len); +#endif // BPF_STR_ERROR From 169e366c08084aeb49a3793c892c9abfaa47eeda Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Sun, 16 Sep 2018 16:17:05 +0100 Subject: [PATCH 1058/1762] perf Documentation: Fix out-of-tree asciidoctor man page generation The dependency for the man page rule using asciidoctor incorrectly specifies a source file in $(OUTPUT). When building out-of-tree, the source file is not found, resulting in a fall-back to the following rule which uses xmlto. Signed-off-by: Ben Hutchings Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20180916151704.GF4765@decadent.org.uk Fixes: ffef80ecf89f ("perf Documentation: Support for asciidoctor") Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/Documentation/Makefile b/tools/perf/Documentation/Makefile index 42261a9b280e..ac841bc5c35b 100644 --- a/tools/perf/Documentation/Makefile +++ b/tools/perf/Documentation/Makefile @@ -280,7 +280,7 @@ $(MAN_HTML): $(OUTPUT)%.html : %.txt mv $@+ $@ ifdef USE_ASCIIDOCTOR -$(OUTPUT)%.1 $(OUTPUT)%.5 $(OUTPUT)%.7 : $(OUTPUT)%.txt +$(OUTPUT)%.1 $(OUTPUT)%.5 $(OUTPUT)%.7 : %.txt $(QUIET_ASCIIDOC)$(RM) $@+ $@ && \ $(ASCIIDOC) -b manpage -d manpage \ $(ASCIIDOC_EXTRA) -aperf_version=$(PERF_VERSION) -o $@+ $< && \ From e0bf2d4982fe7d9ddaf550dd023803ea286f47fc Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Sun, 26 Aug 2018 19:49:32 +0200 Subject: [PATCH 1059/1762] serial: mvebu-uart: Fix reporting of effective CSIZE to userspace Apparently, this driver (or the hardware) does not support character length settings. It's apparently running in 8-bit mode, but it makes userspace believe it's in 5-bit mode. That makes tcsetattr with CS8 incorrectly fail, breaking e.g. getty from busybox, thus the login shell on ttyMVx. Fix by hard-wiring CS8 into c_cflag. Signed-off-by: Jan Kiszka Fixes: 30530791a7a0 ("serial: mvebu-uart: initial support for Armada-3700 serial port") Cc: stable # 4.6+ Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/mvebu-uart.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c index d04b5eeea3c6..170e446a2f62 100644 --- a/drivers/tty/serial/mvebu-uart.c +++ b/drivers/tty/serial/mvebu-uart.c @@ -511,6 +511,7 @@ static void mvebu_uart_set_termios(struct uart_port *port, termios->c_iflag |= old->c_iflag & ~(INPCK | IGNPAR); termios->c_cflag &= CREAD | CBAUD; termios->c_cflag |= old->c_cflag & ~(CREAD | CBAUD); + termios->c_cflag |= CS8; } spin_unlock_irqrestore(&port->lock, flags); From 3216c622a24b0ebb9c159a8d1daf7f17a106b3f5 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Tue, 28 Aug 2018 12:44:24 +0200 Subject: [PATCH 1060/1762] tty: serial: lpuart: avoid leaking struct tty_struct The function tty_port_tty_get() gets a reference to the tty. Since the code is not using tty_port_tty_set(), the reference is kept even after closing the tty. Avoid using tty_port_tty_get() by directly access the tty instance. Since lpuart_start_rx_dma() is called from the .startup() and .set_termios() callback, it is safe to assume the tty instance is valid. Cc: stable@vger.kernel.org # v4.9+ Fixes: 5887ad43ee02 ("tty: serial: fsl_lpuart: Use cyclic DMA for Rx") Signed-off-by: Stefan Agner Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/fsl_lpuart.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 51e47a63d61a..3f8d1274fc85 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -979,7 +979,8 @@ static inline int lpuart_start_rx_dma(struct lpuart_port *sport) struct circ_buf *ring = &sport->rx_ring; int ret, nent; int bits, baud; - struct tty_struct *tty = tty_port_tty_get(&sport->port.state->port); + struct tty_port *port = &sport->port.state->port; + struct tty_struct *tty = port->tty; struct ktermios *termios = &tty->termios; baud = tty_get_baud_rate(tty); From be28c1e3ca29887e207f0cbcd294cefe5074bab6 Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Fri, 14 Sep 2018 10:32:50 +0000 Subject: [PATCH 1061/1762] serial: cpm_uart: return immediately from console poll kgdb expects poll function to return immediately and returning NO_POLL_CHAR when no character is available. Fixes: f5316b4aea024 ("kgdb,8250,pl011: Return immediately from console poll") Cc: Jason Wessel Cc: Signed-off-by: Christophe Leroy Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/cpm_uart/cpm_uart_core.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c index 24a5f05e769b..e5389591bb4f 100644 --- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c +++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c @@ -1054,8 +1054,8 @@ static int poll_wait_key(char *obuf, struct uart_cpm_port *pinfo) /* Get the address of the host memory buffer. */ bdp = pinfo->rx_cur; - while (bdp->cbd_sc & BD_SC_EMPTY) - ; + if (bdp->cbd_sc & BD_SC_EMPTY) + return NO_POLL_CHAR; /* If the buffer address is in the CPM DPRAM, don't * convert it. @@ -1090,7 +1090,11 @@ static int cpm_get_poll_char(struct uart_port *port) poll_chars = 0; } if (poll_chars <= 0) { - poll_chars = poll_wait_key(poll_buf, pinfo); + int ret = poll_wait_key(poll_buf, pinfo); + + if (ret == NO_POLL_CHAR) + return ret; + poll_chars = ret; pollp = poll_buf; } poll_chars--; From fe32416790093b31364c08395727de17ec96ace1 Mon Sep 17 00:00:00 2001 From: Dmitry Safonov Date: Tue, 18 Sep 2018 00:52:52 +0100 Subject: [PATCH 1062/1762] tty: Drop tty->count on tty_reopen() failure In case of tty_ldisc_reinit() failure, tty->count should be decremented back, otherwise we will never release_tty(). Tetsuo reported that it fixes noisy warnings on tty release like: pts pts4033: tty_release: tty->count(10529) != (#fd's(7) + #kopen's(0)) Fixes: commit 892d1fa7eaae ("tty: Destroy ldisc instance on hangup") Cc: stable@vger.kernel.org # v4.6+ Cc: Greg Kroah-Hartman Cc: Jiri Slaby Reviewed-by: Jiri Slaby Tested-by: Jiri Slaby Tested-by: Mark Rutland Tested-by: Tetsuo Handa Signed-off-by: Dmitry Safonov Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_io.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 32bc3e3fe4d3..5e5da9acaf0a 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1255,6 +1255,7 @@ static void tty_driver_remove_tty(struct tty_driver *driver, struct tty_struct * static int tty_reopen(struct tty_struct *tty) { struct tty_driver *driver = tty->driver; + int retval; if (driver->type == TTY_DRIVER_TYPE_PTY && driver->subtype == PTY_TYPE_MASTER) @@ -1268,10 +1269,14 @@ static int tty_reopen(struct tty_struct *tty) tty->count++; - if (!tty->ldisc) - return tty_ldisc_reinit(tty, tty->termios.c_line); + if (tty->ldisc) + return 0; - return 0; + retval = tty_ldisc_reinit(tty, tty->termios.c_line); + if (retval) + tty->count--; + + return retval; } /** From e97267cb4d1ee01ca0929638ec0fcbb0904f903d Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Thu, 16 Aug 2018 15:30:38 -0500 Subject: [PATCH 1063/1762] tty: vt_ioctl: fix potential Spectre v1 vsa.console is indirectly controlled by user-space, hence leading to a potential exploitation of the Spectre variant 1 vulnerability. This issue was detected with the help of Smatch: drivers/tty/vt/vt_ioctl.c:711 vt_ioctl() warn: potential spectre issue 'vc_cons' [r] Fix this by sanitizing vsa.console before using it to index vc_cons Notice that given that speculation windows are large, the policy is to kill the speculation on the first load and not worry if it can be completed with a dependent load/store [1]. [1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2 Cc: stable@vger.kernel.org Signed-off-by: Gustavo A. R. Silva Reviewed-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/tty/vt/vt_ioctl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c index a78ad10a119b..73cdc0d633dd 100644 --- a/drivers/tty/vt/vt_ioctl.c +++ b/drivers/tty/vt/vt_ioctl.c @@ -32,6 +32,8 @@ #include #include +#include + #include #include #include @@ -700,6 +702,8 @@ int vt_ioctl(struct tty_struct *tty, if (vsa.console == 0 || vsa.console > MAX_NR_CONSOLES) ret = -ENXIO; else { + vsa.console = array_index_nospec(vsa.console, + MAX_NR_CONSOLES + 1); vsa.console--; console_lock(); ret = vc_allocate(vsa.console); From 8801922cd94c918e4dc3a108ecaa500c4d40583f Mon Sep 17 00:00:00 2001 From: Alexander Shishkin Date: Tue, 18 Sep 2018 16:10:47 +0300 Subject: [PATCH 1064/1762] intel_th: Fix device removal logic Commit a753bfcfdb1f ("intel_th: Make the switch allocate its subdevices") brings in new subdevice addition/removal logic that's broken for "host mode": the SWITCH device has no children to begin with, which is not handled in the code. This results in a null dereference bug later down the path. This patch fixes the subdevice removal code to handle host mode correctly. Signed-off-by: Alexander Shishkin Fixes: a753bfcfdb1f ("intel_th: Make the switch allocate its subdevices") CC: stable@vger.kernel.org # v4.14+ Signed-off-by: Greg Kroah-Hartman --- drivers/hwtracing/intel_th/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c index da962aa2cef5..4e70ecee2103 100644 --- a/drivers/hwtracing/intel_th/core.c +++ b/drivers/hwtracing/intel_th/core.c @@ -139,7 +139,8 @@ static int intel_th_remove(struct device *dev) th->thdev[i] = NULL; } - th->num_thdevs = lowest; + if (lowest >= 0) + th->num_thdevs = lowest; } if (thdrv->attr_group) From ebe4582281d6e90972f057318a6edea14810ea48 Mon Sep 17 00:00:00 2001 From: Alexander Shishkin Date: Tue, 18 Sep 2018 16:10:48 +0300 Subject: [PATCH 1065/1762] intel_th: Fix resource handling for ACPI glue layer The core of the driver expects the resource array from the glue layer to be indexed by even numbers, as is the case for 64-bit PCI resources. This doesn't hold true for others, ACPI in this instance, which leads to an out-of-bounds access and an ioremap() on whatever address that access fetches. This patch fixes the problem by reading resource array differently based on whether the 64-bit flag is set, which would indicate PCI glue layer. Signed-off-by: Alexander Shishkin Fixes: ebc57e399b8e ("intel_th: Add ACPI glue layer") CC: stable@vger.kernel.org # v4.17+ Signed-off-by: Greg Kroah-Hartman --- drivers/hwtracing/intel_th/core.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c index 4e70ecee2103..fc6b7f8b62fb 100644 --- a/drivers/hwtracing/intel_th/core.c +++ b/drivers/hwtracing/intel_th/core.c @@ -488,7 +488,7 @@ static const struct intel_th_subdevice { .flags = IORESOURCE_MEM, }, { - .start = TH_MMIO_SW, + .start = 1, /* use resource[1] */ .end = 0, .flags = IORESOURCE_MEM, }, @@ -581,6 +581,7 @@ intel_th_subdevice_alloc(struct intel_th *th, struct intel_th_device *thdev; struct resource res[3]; unsigned int req = 0; + bool is64bit = false; int r, err; thdev = intel_th_device_alloc(th, subdev->type, subdev->name, @@ -590,12 +591,18 @@ intel_th_subdevice_alloc(struct intel_th *th, thdev->drvdata = th->drvdata; + for (r = 0; r < th->num_resources; r++) + if (th->resource[r].flags & IORESOURCE_MEM_64) { + is64bit = true; + break; + } + memcpy(res, subdev->res, sizeof(struct resource) * subdev->nres); for (r = 0; r < subdev->nres; r++) { struct resource *devres = th->resource; - int bar = TH_MMIO_CONFIG; + int bar = 0; /* cut subdevices' MMIO from resource[0] */ /* * Take .end == 0 to mean 'take the whole bar', @@ -604,6 +611,8 @@ intel_th_subdevice_alloc(struct intel_th *th, */ if (!res[r].end && res[r].flags == IORESOURCE_MEM) { bar = res[r].start; + if (is64bit) + bar *= 2; res[r].start = 0; res[r].end = resource_size(&devres[bar]) - 1; } From 59d08d00d43c644ee2011d7ff1807bdd69f31fe0 Mon Sep 17 00:00:00 2001 From: Alexander Shishkin Date: Tue, 18 Sep 2018 16:10:49 +0300 Subject: [PATCH 1066/1762] intel_th: pci: Add Ice Lake PCH support This adds Intel(R) Trace Hub PCI ID for Ice Lake PCH. Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman --- drivers/hwtracing/intel_th/pci.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c index c2e55e5d97f6..1cf6290d6435 100644 --- a/drivers/hwtracing/intel_th/pci.c +++ b/drivers/hwtracing/intel_th/pci.c @@ -160,6 +160,11 @@ static const struct pci_device_id intel_th_pci_id_table[] = { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x18e1), .driver_data = (kernel_ulong_t)&intel_th_2x, }, + { + /* Ice Lake PCH */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x34a6), + .driver_data = (kernel_ulong_t)&intel_th_2x, + }, { 0 }, }; From 29ca7d32d7f10737e8d165fcf40fe31d44b06bee Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Tue, 18 Sep 2018 16:16:24 +0800 Subject: [PATCH 1067/1762] ASoC: remove redundant include module.h already contained moduleparam.h, so it is safe to remove the redundant include. The issue is detected with the help of Coccinelle. Signed-off-by: zhong jiang Acked-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/codecs/rt5651.c | 1 - sound/soc/codecs/wm8904.c | 1 - sound/soc/codecs/wm8974.c | 1 - sound/soc/soc-dapm.c | 1 - 4 files changed, 4 deletions(-) diff --git a/sound/soc/codecs/rt5651.c b/sound/soc/codecs/rt5651.c index 985852fd9723..b613103d801b 100644 --- a/sound/soc/codecs/rt5651.c +++ b/sound/soc/codecs/rt5651.c @@ -10,7 +10,6 @@ */ #include -#include #include #include #include diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c index 1965635ec07c..2a3e5fbd04e4 100644 --- a/sound/soc/codecs/wm8904.c +++ b/sound/soc/codecs/wm8904.c @@ -13,7 +13,6 @@ #include #include -#include #include #include #include diff --git a/sound/soc/codecs/wm8974.c b/sound/soc/codecs/wm8974.c index 43edaf8cd276..593a11960888 100644 --- a/sound/soc/codecs/wm8974.c +++ b/sound/soc/codecs/wm8974.c @@ -11,7 +11,6 @@ */ #include -#include #include #include #include diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 43983c69f6aa..ee6b9758ec15 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -18,7 +18,6 @@ // device reopen. #include -#include #include #include #include From bf0fa00fd8410b377a3403adb58e32fc703e86e8 Mon Sep 17 00:00:00 2001 From: Shuming Fan Date: Tue, 18 Sep 2018 19:51:08 +0800 Subject: [PATCH 1068/1762] ASoC: rt5682: Improve HP performance We change the settings while HP power-up for better performance. Signed-off-by: Shuming Fan Signed-off-by: Mark Brown --- sound/soc/codecs/rt5682.c | 32 +++++++++++++++++++++++++++++--- sound/soc/codecs/rt5682.h | 14 ++++++++++++++ 2 files changed, 43 insertions(+), 3 deletions(-) diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c index 731c6a849f69..83202e9e5abd 100644 --- a/sound/soc/codecs/rt5682.c +++ b/sound/soc/codecs/rt5682.c @@ -1437,6 +1437,28 @@ static const struct snd_kcontrol_new hpor_switch = SOC_DAPM_SINGLE_AUTODISABLE("Switch", RT5682_HP_CTRL_1, RT5682_R_MUTE_SFT, 1, 1); +static int rt5682_charge_pump_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = + snd_soc_dapm_to_component(w->dapm); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + snd_soc_component_update_bits(component, + RT5682_HP_CHARGE_PUMP_1, RT5682_PM_HP_MASK, RT5682_PM_HP_HV); + break; + case SND_SOC_DAPM_POST_PMD: + snd_soc_component_update_bits(component, + RT5682_HP_CHARGE_PUMP_1, RT5682_PM_HP_MASK, RT5682_PM_HP_LV); + break; + default: + return 0; + } + + return 0; +} + static int rt5682_hp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { @@ -1449,8 +1471,6 @@ static int rt5682_hp_event(struct snd_soc_dapm_widget *w, RT5682_HP_LOGIC_CTRL_2, 0x0012); snd_soc_component_write(component, RT5682_HP_CTRL_2, 0x6000); - snd_soc_component_update_bits(component, RT5682_STO_NG2_CTRL_1, - RT5682_NG2_EN_MASK, RT5682_NG2_EN); snd_soc_component_update_bits(component, RT5682_DEPOP_1, 0x60, 0x60); break; @@ -1723,7 +1743,8 @@ static const struct snd_soc_dapm_widget rt5682_dapm_widgets[] = { SND_SOC_DAPM_SUPPLY("HP Amp R", RT5682_PWR_ANLG_1, RT5682_PWR_HA_R_BIT, 0, NULL, 0), SND_SOC_DAPM_SUPPLY_S("Charge Pump", 1, RT5682_DEPOP_1, - RT5682_PUMP_EN_SFT, 0, NULL, 0), + RT5682_PUMP_EN_SFT, 0, rt5682_charge_pump_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_SUPPLY_S("Capless", 2, RT5682_DEPOP_1, RT5682_CAPLESS_EN_SFT, 0, NULL, 0), @@ -1884,6 +1905,7 @@ static const struct snd_soc_dapm_route rt5682_dapm_routes[] = { {"HP Amp", NULL, "Charge Pump"}, {"HP Amp", NULL, "CLKDET SYS"}, {"HP Amp", NULL, "CBJ Power"}, + {"HP Amp", NULL, "Vref1"}, {"HP Amp", NULL, "Vref2"}, {"HPOL Playback", "Switch", "HP Amp"}, {"HPOR Playback", "Switch", "HP Amp"}, @@ -2607,6 +2629,10 @@ static int rt5682_i2c_probe(struct i2c_client *i2c, RT5682_GP4_PIN_MASK | RT5682_GP5_PIN_MASK, RT5682_GP4_PIN_ADCDAT1 | RT5682_GP5_PIN_DACDAT1); regmap_write(rt5682->regmap, RT5682_TEST_MODE_CTRL_1, 0x0000); + regmap_update_bits(rt5682->regmap, RT5682_BIAS_CUR_CTRL_8, + RT5682_HPA_CP_BIAS_CTRL_MASK, RT5682_HPA_CP_BIAS_3UA); + regmap_update_bits(rt5682->regmap, RT5682_CHARGE_PUMP_1, + RT5682_CP_CLK_HP_MASK, RT5682_CP_CLK_HP_300KHZ); INIT_DELAYED_WORK(&rt5682->jack_detect_work, rt5682_jack_detect_handler); diff --git a/sound/soc/codecs/rt5682.h b/sound/soc/codecs/rt5682.h index 8068140ebe3f..d82a8301fd74 100644 --- a/sound/soc/codecs/rt5682.h +++ b/sound/soc/codecs/rt5682.h @@ -1214,6 +1214,20 @@ #define RT5682_JDH_NO_PLUG (0x1 << 4) #define RT5682_JDH_PLUG (0x0 << 4) +/* Bias current control 8 (0x0111) */ +#define RT5682_HPA_CP_BIAS_CTRL_MASK (0x3 << 2) +#define RT5682_HPA_CP_BIAS_2UA (0x0 << 2) +#define RT5682_HPA_CP_BIAS_3UA (0x1 << 2) +#define RT5682_HPA_CP_BIAS_4UA (0x2 << 2) +#define RT5682_HPA_CP_BIAS_6UA (0x3 << 2) + +/* Charge Pump Internal Register1 (0x0125) */ +#define RT5682_CP_CLK_HP_MASK (0x3 << 4) +#define RT5682_CP_CLK_HP_100KHZ (0x0 << 4) +#define RT5682_CP_CLK_HP_200KHZ (0x1 << 4) +#define RT5682_CP_CLK_HP_300KHZ (0x2 << 4) +#define RT5682_CP_CLK_HP_600KHZ (0x3 << 4) + /* Chopper and Clock control for DAC (0x013a)*/ #define RT5682_CKXEN_DAC1_MASK (0x1 << 13) #define RT5682_CKXEN_DAC1_SFT 13 From 3f24f37adbc9a1059420a9c8f857e3490a4bce5e Mon Sep 17 00:00:00 2001 From: Shuming Fan Date: Tue, 18 Sep 2018 19:51:24 +0800 Subject: [PATCH 1069/1762] ASoC: rt5682: Remove HP volume control This patch removed Headphone Playback Volume control. Due to codec settings, we don't want the user to change HP analog gain. The user could use DAC1 Playback Volume control to change playback volume. Signed-off-by: Shuming Fan Signed-off-by: Mark Brown --- sound/soc/codecs/rt5682.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c index afe7d5b19313..fad0bed82d79 100644 --- a/sound/soc/codecs/rt5682.c +++ b/sound/soc/codecs/rt5682.c @@ -749,7 +749,6 @@ static bool rt5682_readable_register(struct device *dev, unsigned int reg) } } -static const DECLARE_TLV_DB_SCALE(hp_vol_tlv, -2250, 150, 0); static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -6525, 75, 0); static const DECLARE_TLV_DB_SCALE(adc_vol_tlv, -1725, 75, 0); static const DECLARE_TLV_DB_SCALE(adc_bst_tlv, 0, 1200, 0); @@ -1108,10 +1107,6 @@ static void rt5682_jack_detect_handler(struct work_struct *work) } static const struct snd_kcontrol_new rt5682_snd_controls[] = { - /* Headphone Output Volume */ - SOC_DOUBLE_R_TLV("Headphone Playback Volume", RT5682_HPL_GAIN, - RT5682_HPR_GAIN, RT5682_G_HP_SFT, 15, 1, hp_vol_tlv), - /* DAC Digital Volume */ SOC_DOUBLE_TLV("DAC1 Playback Volume", RT5682_DAC1_DIG_VOL, RT5682_L_VOL_SFT + 1, RT5682_R_VOL_SFT + 1, 86, 0, dac_vol_tlv), From afd603e4ded0fad9e3102d514020af8494da1604 Mon Sep 17 00:00:00 2001 From: Shuming Fan Date: Tue, 18 Sep 2018 19:50:38 +0800 Subject: [PATCH 1070/1762] ASoC: rt5682: Update calibration function The ADC/DAC path should open while calibration process. Signed-off-by: Shuming Fan Signed-off-by: Mark Brown --- sound/soc/codecs/rt5682.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c index 7213b1cfb18a..2725eb72fb1b 100644 --- a/sound/soc/codecs/rt5682.c +++ b/sound/soc/codecs/rt5682.c @@ -2468,17 +2468,22 @@ static void rt5682_calibrate(struct rt5682_priv *rt5682) mutex_lock(&rt5682->calibrate_mutex); rt5682_reset(rt5682->regmap); - regmap_write(rt5682->regmap, RT5682_PWR_ANLG_1, 0xa2bf); + regmap_write(rt5682->regmap, RT5682_PWR_ANLG_1, 0xa2af); usleep_range(15000, 20000); - regmap_write(rt5682->regmap, RT5682_PWR_ANLG_1, 0xf2bf); + regmap_write(rt5682->regmap, RT5682_PWR_ANLG_1, 0xf2af); regmap_write(rt5682->regmap, RT5682_MICBIAS_2, 0x0300); regmap_write(rt5682->regmap, RT5682_GLB_CLK, 0x8000); regmap_write(rt5682->regmap, RT5682_PWR_DIG_1, 0x0100); + regmap_write(rt5682->regmap, RT5682_HP_IMP_SENS_CTRL_19, 0x3800); regmap_write(rt5682->regmap, RT5682_CHOP_DAC, 0x3000); + regmap_write(rt5682->regmap, RT5682_CALIB_ADC_CTRL, 0x7005); + regmap_write(rt5682->regmap, RT5682_STO1_ADC_MIXER, 0x686c); + regmap_write(rt5682->regmap, RT5682_CAL_REC, 0x0d0d); regmap_write(rt5682->regmap, RT5682_HP_CALIB_CTRL_2, 0x0321); regmap_write(rt5682->regmap, RT5682_HP_LOGIC_CTRL_2, 0x0004); regmap_write(rt5682->regmap, RT5682_HP_CALIB_CTRL_1, 0x7c00); regmap_write(rt5682->regmap, RT5682_HP_CALIB_CTRL_3, 0x06a1); + regmap_write(rt5682->regmap, RT5682_A_DAC1_MUX, 0x0311); regmap_write(rt5682->regmap, RT5682_HP_CALIB_CTRL_1, 0x7c00); regmap_write(rt5682->regmap, RT5682_HP_CALIB_CTRL_1, 0xfc00); @@ -2495,8 +2500,12 @@ static void rt5682_calibrate(struct rt5682_priv *rt5682) pr_err("HP Calibration Failure\n"); /* restore settings */ + regmap_write(rt5682->regmap, RT5682_PWR_ANLG_1, 0x02af); + regmap_write(rt5682->regmap, RT5682_MICBIAS_2, 0x0080); regmap_write(rt5682->regmap, RT5682_GLB_CLK, 0x0000); regmap_write(rt5682->regmap, RT5682_PWR_DIG_1, 0x0000); + regmap_write(rt5682->regmap, RT5682_CHOP_DAC, 0x2000); + regmap_write(rt5682->regmap, RT5682_CALIB_ADC_CTRL, 0x2005); mutex_unlock(&rt5682->calibrate_mutex); From 28b20dde5e1c943ab899549a655ac4935cffccbb Mon Sep 17 00:00:00 2001 From: Shuming Fan Date: Tue, 18 Sep 2018 19:51:38 +0800 Subject: [PATCH 1071/1762] ASoC: rt5682: Fix the boost volume at the begining of playback This patch fixed the boost volume at the begining of playback while DAC volume set to lower level. Signed-off-by: Shuming Fan Signed-off-by: Mark Brown --- sound/soc/codecs/rt5682.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c index 2725eb72fb1b..18099668e960 100644 --- a/sound/soc/codecs/rt5682.c +++ b/sound/soc/codecs/rt5682.c @@ -68,6 +68,7 @@ struct rt5682_priv { static const struct reg_sequence patch_list[] = { {0x01c1, 0x1000}, + {RT5682_DAC_ADC_DIG_VOL1, 0xa020}, }; static const struct reg_default rt5682_reg[] = { @@ -1468,6 +1469,8 @@ static int rt5682_hp_event(struct snd_soc_dapm_widget *w, RT5682_HP_CTRL_2, 0x6000); snd_soc_component_update_bits(component, RT5682_DEPOP_1, 0x60, 0x60); + snd_soc_component_update_bits(component, + RT5682_DAC_ADC_DIG_VOL1, 0x00c0, 0x0080); break; case SND_SOC_DAPM_POST_PMD: @@ -1475,6 +1478,8 @@ static int rt5682_hp_event(struct snd_soc_dapm_widget *w, RT5682_DEPOP_1, 0x60, 0x0); snd_soc_component_write(component, RT5682_HP_CTRL_2, 0x0000); + snd_soc_component_update_bits(component, + RT5682_DAC_ADC_DIG_VOL1, 0x00c0, 0x0000); break; default: From c50535ed6a10fcae1b64ae83c0f6b1eeb5535afc Mon Sep 17 00:00:00 2001 From: Akshu Agrawal Date: Tue, 18 Sep 2018 12:53:13 +0530 Subject: [PATCH 1072/1762] ASoC: AMD: Fix capture unstable in beginning for some runs alsa_conformance_test -C hw:0,4 -p 1024 --debug would sometime show: TIME_DIFF(s) HW_LEVEL READ RATE 0.000095970 1024 1024 10670001.041992 0.042609555 1024 2048 24032.168372 0.021330364 1024 3072 48006.681930 0.021339559 1024 4096 47985.996337 The issue is that in dma pointer function we can have stale value of the register for current descriptor of channel. The register retains the number of the last descriptor that was transferred. Fix ensures that we report position, 0, till the one period worth of data is transferred. After one period of data, in handler of period completion interrupt we update the config and correct value of descriptor starts reflecting. Signed-off-by: Akshu Agrawal Signed-off-by: Mark Brown --- sound/soc/amd/acp-pcm-dma.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c index 77b265bd0505..3135e9eafd18 100644 --- a/sound/soc/amd/acp-pcm-dma.c +++ b/sound/soc/amd/acp-pcm-dma.c @@ -1036,16 +1036,22 @@ static snd_pcm_uframes_t acp_dma_pointer(struct snd_pcm_substream *substream) if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { period_bytes = frames_to_bytes(runtime, runtime->period_size); - dscr = acp_reg_read(rtd->acp_mmio, rtd->dma_curr_dscr); - if (dscr == rtd->dma_dscr_idx_1) - pos = period_bytes; - else - pos = 0; bytescount = acp_get_byte_count(rtd); - if (bytescount > rtd->bytescount) + if (bytescount >= rtd->bytescount) bytescount -= rtd->bytescount; - delay = do_div(bytescount, period_bytes); - runtime->delay = bytes_to_frames(runtime, delay); + if (bytescount < period_bytes) { + pos = 0; + } else { + dscr = acp_reg_read(rtd->acp_mmio, rtd->dma_curr_dscr); + if (dscr == rtd->dma_dscr_idx_1) + pos = period_bytes; + else + pos = 0; + } + if (bytescount > 0) { + delay = do_div(bytescount, period_bytes); + runtime->delay = bytes_to_frames(runtime, delay); + } } else { buffersize = frames_to_bytes(runtime, runtime->buffer_size); bytescount = acp_get_byte_count(rtd); From 37efe23dcca3c59cee662f1c28835020bef31cc0 Mon Sep 17 00:00:00 2001 From: Shuming Fan Date: Tue, 18 Sep 2018 19:51:53 +0800 Subject: [PATCH 1073/1762] ASoC: rt5682: Minor code modification Minor code changes are: - improve the readability in patch list - add i2c remove function - regmap_register_patch changes to regmap_multi_reg_write Signed-off-by: Shuming Fan Signed-off-by: Mark Brown --- sound/soc/codecs/rt5682.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c index 18099668e960..340f90497d07 100644 --- a/sound/soc/codecs/rt5682.c +++ b/sound/soc/codecs/rt5682.c @@ -67,7 +67,7 @@ struct rt5682_priv { }; static const struct reg_sequence patch_list[] = { - {0x01c1, 0x1000}, + {RT5682_HP_IMP_SENS_CTRL_19, 0x1000}, {RT5682_DAC_ADC_DIG_VOL1, 0xa020}, }; @@ -2584,7 +2584,7 @@ static int rt5682_i2c_probe(struct i2c_client *i2c, rt5682_calibrate(rt5682); - ret = regmap_register_patch(rt5682->regmap, patch_list, + ret = regmap_multi_reg_write(rt5682->regmap, patch_list, ARRAY_SIZE(patch_list)); if (ret != 0) dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret); @@ -2659,11 +2659,17 @@ static int rt5682_i2c_probe(struct i2c_client *i2c, } - return devm_snd_soc_register_component(&i2c->dev, - &soc_component_dev_rt5682, + return snd_soc_register_component(&i2c->dev, &soc_component_dev_rt5682, rt5682_dai, ARRAY_SIZE(rt5682_dai)); } +static int rt5682_i2c_remove(struct i2c_client *i2c) +{ + snd_soc_unregister_component(&i2c->dev); + + return 0; +} + static void rt5682_i2c_shutdown(struct i2c_client *client) { struct rt5682_priv *rt5682 = i2c_get_clientdata(client); @@ -2694,6 +2700,7 @@ static struct i2c_driver rt5682_i2c_driver = { .acpi_match_table = ACPI_PTR(rt5682_acpi_match), }, .probe = rt5682_i2c_probe, + .remove = rt5682_i2c_remove, .shutdown = rt5682_i2c_shutdown, .id_table = rt5682_i2c_id, }; From 65ba4dd5200a537eae0f6b29e120f3971eac5a4d Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 18 Sep 2018 12:11:57 -0700 Subject: [PATCH 1074/1762] ASoC: rt5677-spi: Drop unused GPIO include This SPI driver does not use the legacy GPIO header so just delete it. Signed-off-by: Linus Walleij Signed-off-by: Mark Brown --- sound/soc/codecs/rt5677-spi.c | 1 - 1 file changed, 1 deletion(-) diff --git a/sound/soc/codecs/rt5677-spi.c b/sound/soc/codecs/rt5677-spi.c index bd51f3655ee3..84501c2020c7 100644 --- a/sound/soc/codecs/rt5677-spi.c +++ b/sound/soc/codecs/rt5677-spi.c @@ -18,7 +18,6 @@ #include #include #include -#include #include #include #include From 40660f1fcee8d524a60b5101538e42b1f39f106d Mon Sep 17 00:00:00 2001 From: Alexey Brodkin Date: Sun, 16 Sep 2018 23:47:57 +0300 Subject: [PATCH 1075/1762] ARC: build: Don't set CROSS_COMPILE in arch's Makefile There's not much sense in doing that because if user or his build-system didn't set CROSS_COMPILE we still may very well make incorrect guess. But as it turned out setting CROSS_COMPILE is not as harmless as one may think: with recent changes that implemented automatic discovery of __host__ gcc features unconditional setup of CROSS_COMPILE leads to failures on execution of "make xxx_defconfig" with absent cross-compiler, for more info see [1]. Set CROSS_COMPILE as well gets in the way if we want only to build .dtb's (again with absent cross-compiler which is not really needed for building .dtb's), see [2]. Note, we had to change LIBGCC assignment type from ":=" to "=" so that is is resolved on its usage, otherwise if it is resolved at declaration time with missing CROSS_COMPILE we're getting this error message from host GCC: | gcc: error: unrecognized command line option -mmedium-calls | gcc: error: unrecognized command line option -mno-sdata [1] http://lists.infradead.org/pipermail/linux-snps-arc/2018-September/004308.html [2] http://lists.infradead.org/pipermail/linux-snps-arc/2018-September/004320.html Signed-off-by: Alexey Brodkin Cc: Masahiro Yamada Cc: Rob Herring Signed-off-by: Vineet Gupta --- arch/arc/Makefile | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/arch/arc/Makefile b/arch/arc/Makefile index 0dbce0235617..644815c0516e 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -6,14 +6,6 @@ # published by the Free Software Foundation. # -ifeq ($(CROSS_COMPILE),) -ifndef CONFIG_CPU_BIG_ENDIAN -CROSS_COMPILE := arc-linux- -else -CROSS_COMPILE := arceb-linux- -endif -endif - KBUILD_DEFCONFIG := nsim_700_defconfig cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__ @@ -65,7 +57,7 @@ cflags-$(disable_small_data) += -mno-sdata -fcall-used-gp cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB -LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name) +LIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name) # Modules with short calls might break for calls into builtin-kernel KBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode From 753694a8df318f204a0ac1303de136def16f2e9c Mon Sep 17 00:00:00 2001 From: Xiaochen Shen Date: Sat, 15 Sep 2018 14:58:19 -0700 Subject: [PATCH 1076/1762] x86/intel_rdt: Fix data type in parsing callbacks Each resource is associated with a parsing callback to parse the data provided from user space when writing schemata file. The 'data' parameter in the callbacks is defined as a void pointer which is error prone due to lack of type check. parse_bw() processes the 'data' parameter as a string while its caller actually passes the parameter as a pointer to struct rdt_cbm_parse_data. Thus, parse_bw() takes wrong data and causes failure of parsing MBA throttle value. To fix the issue, the 'data' parameter in all parsing callbacks is defined and handled as a pointer to struct rdt_parse_data (renamed from struct rdt_cbm_parse_data). Fixes: 7604df6e16ae ("x86/intel_rdt: Support flexible data to parsing callbacks") Fixes: 9ab9aa15c309 ("x86/intel_rdt: Ensure requested schemata respects mode") Signed-off-by: Xiaochen Shen Signed-off-by: Reinette Chatre Signed-off-by: Fenghua Yu Signed-off-by: Thomas Gleixner Cc: "H Peter Anvin" Cc: "Tony Luck" Cc: "Chen Yu" Link: https://lkml.kernel.org/r/1537048707-76280-2-git-send-email-fenghua.yu@intel.com --- arch/x86/kernel/cpu/intel_rdt.h | 16 ++++++++++++---- arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c | 21 ++++++++------------- 2 files changed, 20 insertions(+), 17 deletions(-) diff --git a/arch/x86/kernel/cpu/intel_rdt.h b/arch/x86/kernel/cpu/intel_rdt.h index 4e588f36228f..78266c798280 100644 --- a/arch/x86/kernel/cpu/intel_rdt.h +++ b/arch/x86/kernel/cpu/intel_rdt.h @@ -382,6 +382,11 @@ static inline bool is_mbm_event(int e) e <= QOS_L3_MBM_LOCAL_EVENT_ID); } +struct rdt_parse_data { + struct rdtgroup *rdtgrp; + char *buf; +}; + /** * struct rdt_resource - attributes of an RDT resource * @rid: The index of the resource @@ -423,16 +428,19 @@ struct rdt_resource { struct rdt_cache cache; struct rdt_membw membw; const char *format_str; - int (*parse_ctrlval) (void *data, struct rdt_resource *r, - struct rdt_domain *d); + int (*parse_ctrlval)(struct rdt_parse_data *data, + struct rdt_resource *r, + struct rdt_domain *d); struct list_head evt_list; int num_rmid; unsigned int mon_scale; unsigned long fflags; }; -int parse_cbm(void *_data, struct rdt_resource *r, struct rdt_domain *d); -int parse_bw(void *_buf, struct rdt_resource *r, struct rdt_domain *d); +int parse_cbm(struct rdt_parse_data *data, struct rdt_resource *r, + struct rdt_domain *d); +int parse_bw(struct rdt_parse_data *data, struct rdt_resource *r, + struct rdt_domain *d); extern struct mutex rdtgroup_mutex; diff --git a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c index af358ca05160..edd5761f7336 100644 --- a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c +++ b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c @@ -64,19 +64,19 @@ static bool bw_validate(char *buf, unsigned long *data, struct rdt_resource *r) return true; } -int parse_bw(void *_buf, struct rdt_resource *r, struct rdt_domain *d) +int parse_bw(struct rdt_parse_data *data, struct rdt_resource *r, + struct rdt_domain *d) { - unsigned long data; - char *buf = _buf; + unsigned long bw_val; if (d->have_new_ctrl) { rdt_last_cmd_printf("duplicate domain %d\n", d->id); return -EINVAL; } - if (!bw_validate(buf, &data, r)) + if (!bw_validate(data->buf, &bw_val, r)) return -EINVAL; - d->new_ctrl = data; + d->new_ctrl = bw_val; d->have_new_ctrl = true; return 0; @@ -123,18 +123,13 @@ static bool cbm_validate(char *buf, u32 *data, struct rdt_resource *r) return true; } -struct rdt_cbm_parse_data { - struct rdtgroup *rdtgrp; - char *buf; -}; - /* * Read one cache bit mask (hex). Check that it is valid for the current * resource type. */ -int parse_cbm(void *_data, struct rdt_resource *r, struct rdt_domain *d) +int parse_cbm(struct rdt_parse_data *data, struct rdt_resource *r, + struct rdt_domain *d) { - struct rdt_cbm_parse_data *data = _data; struct rdtgroup *rdtgrp = data->rdtgrp; u32 cbm_val; @@ -195,7 +190,7 @@ int parse_cbm(void *_data, struct rdt_resource *r, struct rdt_domain *d) static int parse_line(char *line, struct rdt_resource *r, struct rdtgroup *rdtgrp) { - struct rdt_cbm_parse_data data; + struct rdt_parse_data data; char *dom = NULL, *id; struct rdt_domain *d; unsigned long dom_id; From f968dc119a159a95628a20de2a2dcc913d0a82d7 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Sat, 15 Sep 2018 14:58:20 -0700 Subject: [PATCH 1077/1762] x86/intel_rdt: Fix size reporting of MBA resource Chen Yu reported a divide-by-zero error when accessing the 'size' resctrl file when a MBA resource is enabled. divide error: 0000 [#1] SMP PTI CPU: 93 PID: 1929 Comm: cat Not tainted 4.19.0-rc2-debug-rdt+ #25 RIP: 0010:rdtgroup_cbm_to_size+0x7e/0xa0 Call Trace: rdtgroup_size_show+0x11a/0x1d0 seq_read+0xd8/0x3b0 Quoting Chen Yu's report: This is because for MB resource, the r->cache.cbm_len is zero, thus calculating size in rdtgroup_cbm_to_size() will trigger the exception. Fix this issue in the 'size' file by getting correct memory bandwidth value which is in MBps when MBA software controller is enabled or in percentage when MBA software controller is disabled. Fixes: d9b48c86eb38 ("x86/intel_rdt: Display resource groups' allocations in bytes") Reported-by: Chen Yu Signed-off-by: Reinette Chatre Signed-off-by: Fenghua Yu Signed-off-by: Thomas Gleixner Tested-by: Chen Yu Cc: "H Peter Anvin" Cc: "Tony Luck" Cc: "Xiaochen Shen" Link: https://lkml.kernel.org/r/20180904174614.26682-1-yu.c.chen@intel.com Link: https://lkml.kernel.org/r/1537048707-76280-3-git-send-email-fenghua.yu@intel.com --- arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c index b799c00bef09..32e8bbdf2400 100644 --- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c +++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c @@ -1155,8 +1155,8 @@ static int rdtgroup_size_show(struct kernfs_open_file *of, struct rdt_resource *r; struct rdt_domain *d; unsigned int size; - bool sep = false; - u32 cbm; + bool sep; + u32 ctrl; rdtgrp = rdtgroup_kn_lock_live(of->kn); if (!rdtgrp) { @@ -1174,6 +1174,7 @@ static int rdtgroup_size_show(struct kernfs_open_file *of, } for_each_alloc_enabled_rdt_resource(r) { + sep = false; seq_printf(s, "%*s:", max_name_width, r->name); list_for_each_entry(d, &r->domains, list) { if (sep) @@ -1181,8 +1182,13 @@ static int rdtgroup_size_show(struct kernfs_open_file *of, if (rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP) { size = 0; } else { - cbm = d->ctrl_val[rdtgrp->closid]; - size = rdtgroup_cbm_to_size(r, d, cbm); + ctrl = (!is_mba_sc(r) ? + d->ctrl_val[rdtgrp->closid] : + d->mbps_val[rdtgrp->closid]); + if (r->rid == RDT_RESOURCE_MBA) + size = ctrl; + else + size = rdtgroup_cbm_to_size(r, d, ctrl); } seq_printf(s, "%d=%u", d->id, size); sep = true; From c793da8e4c62d2c002a79c47f44efead450cbcae Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Sat, 15 Sep 2018 14:58:21 -0700 Subject: [PATCH 1078/1762] x86/intel_rdt: Global closid helper to support future fixes The number of CLOSIDs supported by a system is the minimum number of CLOSIDs supported by any of its resources. Care should be taken when iterating over the CLOSIDs of a resource since it may be that the number of CLOSIDs supported on the system is less than the number of CLOSIDs supported by the resource. Introduce a helper function that can be used to query the number of CLOSIDs that is supported by all resources, irrespective of how many CLOSIDs are supported by a particular resource. Signed-off-by: Reinette Chatre Signed-off-by: Fenghua Yu Signed-off-by: Thomas Gleixner Cc: "H Peter Anvin" Cc: "Tony Luck" Cc: "Xiaochen Shen" Cc: "Chen Yu" Link: https://lkml.kernel.org/r/1537048707-76280-4-git-send-email-fenghua.yu@intel.com --- arch/x86/kernel/cpu/intel_rdt.h | 1 + arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/arch/x86/kernel/cpu/intel_rdt.h b/arch/x86/kernel/cpu/intel_rdt.h index 78266c798280..285eb3ec4200 100644 --- a/arch/x86/kernel/cpu/intel_rdt.h +++ b/arch/x86/kernel/cpu/intel_rdt.h @@ -544,6 +544,7 @@ int rdtgroup_pseudo_lock_create(struct rdtgroup *rdtgrp); void rdtgroup_pseudo_lock_remove(struct rdtgroup *rdtgrp); struct rdt_domain *get_domain_from_cpu(int cpu, struct rdt_resource *r); int update_domains(struct rdt_resource *r, int closid); +int closids_supported(void); void closid_free(int closid); int alloc_rmid(void); void free_rmid(u32 rmid); diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c index 32e8bbdf2400..b372923eb209 100644 --- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c +++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c @@ -97,6 +97,12 @@ void rdt_last_cmd_printf(const char *fmt, ...) * limited as the number of resources grows. */ static int closid_free_map; +static int closid_free_map_len; + +int closids_supported(void) +{ + return closid_free_map_len; +} static void closid_init(void) { @@ -111,6 +117,7 @@ static void closid_init(void) /* CLOSID 0 is always reserved for the default group */ closid_free_map &= ~1; + closid_free_map_len = rdt_min_closid; } static int closid_alloc(void) From 47d53b184aee983ab9492503da11b0a81b19145b Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Sat, 15 Sep 2018 14:58:22 -0700 Subject: [PATCH 1079/1762] x86/intel_rdt: Fix invalid mode warning when multiple resources are managed When multiple resources are managed by RDT, the number of CLOSIDs used is the minimum of the CLOSIDs supported by each resource. In the function rdt_bit_usage_show(), the annotated bitmask is created to depict how the CAT supporting caches are being used. During this annotated bitmask creation, each resource group is queried for its mode that is used as a label in the annotated bitmask. The maximum number of resource groups is currently assumed to be the number of CLOSIDs supported by the resource for which the information is being displayed. This is incorrect since the number of active CLOSIDs is the minimum across all resources. If information for a cache instance with more CLOSIDs than another is being generated we thus encounter a warning like: invalid mode for closid 8 WARNING: CPU: 88 PID: 1791 at [SNIP]/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c :827 rdt_bit_usage_show+0x221/0x2b0 Fix this by ensuring that only the number of supported CLOSIDs are considered. Fixes: e651901187ab8 ("x86/intel_rdt: Introduce "bit_usage" to display cache allocations details") Signed-off-by: Reinette Chatre Signed-off-by: Fenghua Yu Signed-off-by: Thomas Gleixner Cc: "H Peter Anvin" Cc: "Tony Luck" Cc: "Xiaochen Shen" Cc: "Chen Yu" Link: https://lkml.kernel.org/r/1537048707-76280-5-git-send-email-fenghua.yu@intel.com --- arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c index b372923eb209..ea91750ba27f 100644 --- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c +++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c @@ -809,7 +809,7 @@ static int rdt_bit_usage_show(struct kernfs_open_file *of, sw_shareable = 0; exclusive = 0; seq_printf(seq, "%d=", dom->id); - for (i = 0; i < r->num_closid; i++, ctrl++) { + for (i = 0; i < closids_supported(); i++, ctrl++) { if (!closid_allocated(i)) continue; mode = rdtgroup_mode_by_closid(i); From 70479c012b67b89e219c40eddc5dc338b7c447a3 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Sat, 15 Sep 2018 14:58:23 -0700 Subject: [PATCH 1080/1762] x86/intel_rdt: Fix unchecked MSR access When a new resource group is created, it is initialized with sane defaults that currently assume the resource being initialized is a CAT resource. This code path is also followed by a MBA resource that is not allocated the same as a CAT resource and as a result we encounter the following unchecked MSR access error: unchecked MSR access error: WRMSR to 0xd51 (tried to write 0x0000 000000000064) at rIP: 0xffffffffae059994 (native_write_msr+0x4/0x20) Call Trace: mba_wrmsr+0x41/0x80 update_domains+0x125/0x130 rdtgroup_mkdir+0x270/0x500 Fix the above by ensuring the initial allocation is only attempted on a CAT resource. Fixes: 95f0b77ef ("x86/intel_rdt: Initialize new resource group with sane defaults") Signed-off-by: Reinette Chatre Signed-off-by: Fenghua Yu Signed-off-by: Thomas Gleixner Cc: "H Peter Anvin" Cc: "Tony Luck" Cc: "Xiaochen Shen" Cc: "Chen Yu" Link: https://lkml.kernel.org/r/1537048707-76280-6-git-send-email-fenghua.yu@intel.com --- arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c index ea91750ba27f..74821bc457c0 100644 --- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c +++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c @@ -2349,6 +2349,12 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp) u32 *ctrl; for_each_alloc_enabled_rdt_resource(r) { + /* + * Only initialize default allocations for CBM cache + * resources + */ + if (r->rid == RDT_RESOURCE_MBA) + continue; list_for_each_entry(d, &r->domains, list) { d->have_new_ctrl = false; d->new_ctrl = r->cache.shareable_bits; @@ -2386,6 +2392,12 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp) } for_each_alloc_enabled_rdt_resource(r) { + /* + * Only initialize default allocations for CBM cache + * resources + */ + if (r->rid == RDT_RESOURCE_MBA) + continue; ret = update_domains(r, rdtgrp->closid); if (ret < 0) { rdt_last_cmd_puts("failed to initialize allocations\n"); From 32d736abed4febff4b6bf85d5d240ee24d254322 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Sat, 15 Sep 2018 14:58:24 -0700 Subject: [PATCH 1081/1762] x86/intel_rdt: Do not allow pseudo-locking of MBA resource A system supporting pseudo-locking may have MBA as well as CAT resources of which only the CAT resources could support cache pseudo-locking. When the schemata to be pseudo-locked is provided it should be checked that that schemata does not attempt to pseudo-lock a MBA resource. Fixes: e0bdfe8e3 ("x86/intel_rdt: Support creation/removal of pseudo-locked region") Signed-off-by: Reinette Chatre Signed-off-by: Fenghua Yu Signed-off-by: Thomas Gleixner Cc: "H Peter Anvin" Cc: "Tony Luck" Cc: "Xiaochen Shen" Cc: "Chen Yu" Link: https://lkml.kernel.org/r/1537048707-76280-7-git-send-email-fenghua.yu@intel.com --- arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c index edd5761f7336..0f53049719cd 100644 --- a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c +++ b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c @@ -195,6 +195,12 @@ static int parse_line(char *line, struct rdt_resource *r, struct rdt_domain *d; unsigned long dom_id; + if (rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP && + r->rid == RDT_RESOURCE_MBA) { + rdt_last_cmd_puts("Cannot pseudo-lock MBA resource\n"); + return -EINVAL; + } + next: if (!line || line[0] == '\0') return 0; From f0df4e1acf3d721958dcafb2c9c0bdf25189068d Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Sat, 15 Sep 2018 14:58:25 -0700 Subject: [PATCH 1082/1762] x86/intel_rdt: Fix incorrect loop end condition A loop is used to check if a CAT resource's CBM of one CLOSID overlaps with the CBM of another CLOSID of the same resource. The loop is run over all CLOSIDs supported by the resource. The problem with running the loop over all CLOSIDs supported by the resource is that its number of supported CLOSIDs may be more than the number of supported CLOSIDs on the system, which is the minimum number of CLOSIDs supported across all resources. Fix the loop to only consider the number of system supported CLOSIDs, not all that are supported by the resource. Fixes: 49f7b4efa ("x86/intel_rdt: Enable setting of exclusive mode") Signed-off-by: Reinette Chatre Signed-off-by: Fenghua Yu Signed-off-by: Thomas Gleixner Cc: "H Peter Anvin" Cc: "Tony Luck" Cc: "Xiaochen Shen" Cc: "Chen Yu" Link: https://lkml.kernel.org/r/1537048707-76280-8-git-send-email-fenghua.yu@intel.com --- arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c index 74821bc457c0..afd93d45e21b 100644 --- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c +++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c @@ -996,7 +996,7 @@ bool rdtgroup_cbm_overlaps(struct rdt_resource *r, struct rdt_domain *d, /* Check for overlap with other resource groups */ ctrl = d->ctrl_val; - for (i = 0; i < r->num_closid; i++, ctrl++) { + for (i = 0; i < closids_supported(); i++, ctrl++) { ctrl_b = (unsigned long *)ctrl; mode = rdtgroup_mode_by_closid(i); if (closid_allocated(i) && i != closid && From 939b90b20bc87e199b6b53942764b987289b87ce Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Sat, 15 Sep 2018 14:58:26 -0700 Subject: [PATCH 1083/1762] x86/intel_rdt: Fix exclusive mode handling of MBA resource It is possible for a resource group to consist out of MBA as well as CAT/CDP resources. The "exclusive" resource mode only applies to the CAT/CDP resources since MBA allocations cannot be specified to overlap or not. When a user requests a resource group to become "exclusive" then it can only be successful if there are CAT/CDP resources in the group and none of their CBMs associated with the group's CLOSID overlaps with any other resource group. Fix the "exclusive" mode setting by failing if there isn't any CAT/CDP resource in the group and ensuring that the CBM checking is only done on CAT/CDP resources. Fixes: 49f7b4efa ("x86/intel_rdt: Enable setting of exclusive mode") Signed-off-by: Reinette Chatre Signed-off-by: Fenghua Yu Signed-off-by: Thomas Gleixner Cc: "H Peter Anvin" Cc: "Tony Luck" Cc: "Xiaochen Shen" Cc: "Chen Yu" Link: https://lkml.kernel.org/r/1537048707-76280-9-git-send-email-fenghua.yu@intel.com --- arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c index afd93d45e21b..f3231f78d69b 100644 --- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c +++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c @@ -1031,16 +1031,27 @@ static bool rdtgroup_mode_test_exclusive(struct rdtgroup *rdtgrp) { int closid = rdtgrp->closid; struct rdt_resource *r; + bool has_cache = false; struct rdt_domain *d; for_each_alloc_enabled_rdt_resource(r) { + if (r->rid == RDT_RESOURCE_MBA) + continue; + has_cache = true; list_for_each_entry(d, &r->domains, list) { if (rdtgroup_cbm_overlaps(r, d, d->ctrl_val[closid], - rdtgrp->closid, false)) + rdtgrp->closid, false)) { + rdt_last_cmd_puts("schemata overlaps\n"); return false; + } } } + if (!has_cache) { + rdt_last_cmd_puts("cannot be exclusive without CAT/CDP\n"); + return false; + } + return true; } @@ -1092,7 +1103,6 @@ static ssize_t rdtgroup_mode_write(struct kernfs_open_file *of, rdtgrp->mode = RDT_MODE_SHAREABLE; } else if (!strcmp(buf, "exclusive")) { if (!rdtgroup_mode_test_exclusive(rdtgrp)) { - rdt_last_cmd_printf("schemata overlaps\n"); ret = -EINVAL; goto out; } From ffb2315fd22c2568747402eecdc581a245a2f5ba Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Sat, 15 Sep 2018 14:58:27 -0700 Subject: [PATCH 1084/1762] x86/intel_rdt: Fix incorrect loop end condition In order to determine a sane default cache allocation for a new CAT/CDP resource group, all resource groups are checked to determine which cache portions are available to share. At this time all possible CLOSIDs that can be supported by the resource is checked. This is problematic if the resource supports more CLOSIDs than another CAT/CDP resource. In this case, the number of CLOSIDs that could be allocated are fewer than the number of CLOSIDs that can be supported by the resource. Limit the check of closids to that what is supported by the system based on the minimum across all resources. Fixes: 95f0b77ef ("x86/intel_rdt: Initialize new resource group with sane defaults") Signed-off-by: Reinette Chatre Signed-off-by: Fenghua Yu Signed-off-by: Thomas Gleixner Cc: "H Peter Anvin" Cc: "Tony Luck" Cc: "Xiaochen Shen" Cc: "Chen Yu" Link: https://lkml.kernel.org/r/1537048707-76280-10-git-send-email-fenghua.yu@intel.com --- arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c index f3231f78d69b..1b8e86a5d5e1 100644 --- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c +++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c @@ -2370,7 +2370,7 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp) d->new_ctrl = r->cache.shareable_bits; used_b = r->cache.shareable_bits; ctrl = d->ctrl_val; - for (i = 0; i < r->num_closid; i++, ctrl++) { + for (i = 0; i < closids_supported(); i++, ctrl++) { if (closid_allocated(i) && i != closid) { mode = rdtgroup_mode_by_closid(i); if (mode == RDT_MODE_PSEUDO_LOCKSETUP) From 235fe0851bcf1d6ffd6cef4c7eb0d701d0946053 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Wed, 12 Sep 2018 11:55:26 -0500 Subject: [PATCH 1085/1762] MAINTAINERS: Update PPC contacts for PCI core error handling The original PCI error recovery functionality was for the powerpc-specific IBM EEH feature. PCIe subsequently added some similar features, including AER and DPC, that can be used on any architecture. We want the generic PCI core error handling support to work with all of these features. Driver error recovery callbacks should be independent of which feature the platform provides. Add the generic PCI core error recovery files to the powerpc EEH MAINTAINERS entry so the powerpc folks will be copied on changes to the generic PCI error handling strategy. Add Sam and Oliver as maintainers for this area. Signed-off-by: Bjorn Helgaas Acked-by: Russell Currey Acked-by: Sam Bobroff --- MAINTAINERS | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 4ece30f15777..f05d2e9ffc84 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11203,8 +11203,14 @@ F: tools/pci/ PCI ENHANCED ERROR HANDLING (EEH) FOR POWERPC M: Russell Currey +M: Sam Bobroff +M: Oliver O'Halloran L: linuxppc-dev@lists.ozlabs.org S: Supported +F: Documentation/PCI/pci-error-recovery.txt +F: drivers/pci/pcie/aer.c +F: drivers/pci/pcie/dpc.c +F: drivers/pci/pcie/err.c F: Documentation/powerpc/eeh-pci-error-recovery.txt F: arch/powerpc/kernel/eeh*.c F: arch/powerpc/platforms/*/eeh*.c From b8a946d8dc245ec3adae65c8eab6f3e73a950af3 Mon Sep 17 00:00:00 2001 From: Song Qiang Date: Mon, 17 Sep 2018 11:08:01 -0700 Subject: [PATCH 1086/1762] Input: gpio-keys - fix a documentation index issue gpio_keys.c now exists in the drivers/input/keyboard/ rather than drivers/input/. Signed-off-by: Song Qiang Signed-off-by: Dmitry Torokhov --- Documentation/devicetree/bindings/input/gpio-keys.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/input/gpio-keys.txt b/Documentation/devicetree/bindings/input/gpio-keys.txt index 996ce84352cb..7cccc49b6bea 100644 --- a/Documentation/devicetree/bindings/input/gpio-keys.txt +++ b/Documentation/devicetree/bindings/input/gpio-keys.txt @@ -1,4 +1,4 @@ -Device-Tree bindings for input/gpio_keys.c keyboard driver +Device-Tree bindings for input/keyboard/gpio_keys.c keyboard driver Required properties: - compatible = "gpio-keys"; From 49f62249a9577b0f8c20c7c843d23289d143daf1 Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Mon, 17 Sep 2018 11:08:52 -0700 Subject: [PATCH 1087/1762] Input: egalax_ts - add system wakeup support This patch adds wakeup function support for egalax touch screen, if "wakeup-source" is added to device tree's egalax touch screen node, the wakeup function will be enabled, and egalax touch screen will be able to wakeup system from suspend. Signed-off-by: Anson Huang Reviewed-by: Fabio Estevam Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/egalax_ts.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c index 80e69bb8283e..83ac8c128192 100644 --- a/drivers/input/touchscreen/egalax_ts.c +++ b/drivers/input/touchscreen/egalax_ts.c @@ -241,6 +241,9 @@ static int __maybe_unused egalax_ts_suspend(struct device *dev) struct i2c_client *client = to_i2c_client(dev); int ret; + if (device_may_wakeup(dev)) + return enable_irq_wake(client->irq); + ret = i2c_master_send(client, suspend_cmd, MAX_I2C_DATA_LEN); return ret > 0 ? 0 : ret; } @@ -249,6 +252,9 @@ static int __maybe_unused egalax_ts_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); + if (device_may_wakeup(dev)) + return disable_irq_wake(client->irq); + return egalax_wake_up_device(client); } From 9e62df51be993035c577371ffee5477697a56aad Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Mon, 17 Sep 2018 12:43:34 -0700 Subject: [PATCH 1088/1762] Input: atakbd - fix Atari keymap Fix errors in Atari keymap (mostly in keypad, help and undo keys). Patch provided on debian-68k ML by Andreas Schwab , keymap array size and unhandled scancode limit adjusted to 0x73 by me. Tested-by: Michael Schmitz Signed-off-by: Michael Schmitz Signed-off-by: Andreas Schwab Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/atakbd.c | 64 ++++++++++++++------------------- 1 file changed, 26 insertions(+), 38 deletions(-) diff --git a/drivers/input/keyboard/atakbd.c b/drivers/input/keyboard/atakbd.c index 6f62da2909ec..e989574a2e20 100644 --- a/drivers/input/keyboard/atakbd.c +++ b/drivers/input/keyboard/atakbd.c @@ -75,8 +75,7 @@ MODULE_LICENSE("GPL"); */ -static unsigned char atakbd_keycode[0x72] = { /* American layout */ - [0] = KEY_GRAVE, +static unsigned char atakbd_keycode[0x73] = { /* American layout */ [1] = KEY_ESC, [2] = KEY_1, [3] = KEY_2, @@ -117,9 +116,9 @@ static unsigned char atakbd_keycode[0x72] = { /* American layout */ [38] = KEY_L, [39] = KEY_SEMICOLON, [40] = KEY_APOSTROPHE, - [41] = KEY_BACKSLASH, /* FIXME, '#' */ + [41] = KEY_GRAVE, [42] = KEY_LEFTSHIFT, - [43] = KEY_GRAVE, /* FIXME: '~' */ + [43] = KEY_BACKSLASH, [44] = KEY_Z, [45] = KEY_X, [46] = KEY_C, @@ -145,45 +144,34 @@ static unsigned char atakbd_keycode[0x72] = { /* American layout */ [66] = KEY_F8, [67] = KEY_F9, [68] = KEY_F10, - [69] = KEY_ESC, - [70] = KEY_DELETE, - [71] = KEY_KP7, - [72] = KEY_KP8, - [73] = KEY_KP9, + [71] = KEY_HOME, + [72] = KEY_UP, [74] = KEY_KPMINUS, - [75] = KEY_KP4, - [76] = KEY_KP5, - [77] = KEY_KP6, + [75] = KEY_LEFT, + [77] = KEY_RIGHT, [78] = KEY_KPPLUS, - [79] = KEY_KP1, - [80] = KEY_KP2, - [81] = KEY_KP3, - [82] = KEY_KP0, - [83] = KEY_KPDOT, - [90] = KEY_KPLEFTPAREN, - [91] = KEY_KPRIGHTPAREN, - [92] = KEY_KPASTERISK, /* FIXME */ - [93] = KEY_KPASTERISK, - [94] = KEY_KPPLUS, - [95] = KEY_HELP, + [80] = KEY_DOWN, + [82] = KEY_INSERT, + [83] = KEY_DELETE, [96] = KEY_102ND, - [97] = KEY_KPASTERISK, /* FIXME */ - [98] = KEY_KPSLASH, + [97] = KEY_UNDO, + [98] = KEY_HELP, [99] = KEY_KPLEFTPAREN, [100] = KEY_KPRIGHTPAREN, [101] = KEY_KPSLASH, [102] = KEY_KPASTERISK, - [103] = KEY_UP, - [104] = KEY_KPASTERISK, /* FIXME */ - [105] = KEY_LEFT, - [106] = KEY_RIGHT, - [107] = KEY_KPASTERISK, /* FIXME */ - [108] = KEY_DOWN, - [109] = KEY_KPASTERISK, /* FIXME */ - [110] = KEY_KPASTERISK, /* FIXME */ - [111] = KEY_KPASTERISK, /* FIXME */ - [112] = KEY_KPASTERISK, /* FIXME */ - [113] = KEY_KPASTERISK /* FIXME */ + [103] = KEY_KP7, + [104] = KEY_KP8, + [105] = KEY_KP9, + [106] = KEY_KP4, + [107] = KEY_KP5, + [108] = KEY_KP6, + [109] = KEY_KP1, + [110] = KEY_KP2, + [111] = KEY_KP3, + [112] = KEY_KP0, + [113] = KEY_KPDOT, + [114] = KEY_KPENTER, }; static struct input_dev *atakbd_dev; @@ -191,7 +179,7 @@ static struct input_dev *atakbd_dev; static void atakbd_interrupt(unsigned char scancode, char down) { - if (scancode < 0x72) { /* scancodes < 0xf2 are keys */ + if (scancode < 0x73) { /* scancodes < 0xf3 are keys */ // report raw events here? @@ -205,7 +193,7 @@ static void atakbd_interrupt(unsigned char scancode, char down) input_report_key(atakbd_dev, scancode, down); input_sync(atakbd_dev); } - } else /* scancodes >= 0xf2 are mouse data, most likely */ + } else /* scancodes >= 0xf3 are mouse data, most likely */ printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode); return; From 52d2c7bf7c90217fbe875d2d76f310979c48eb83 Mon Sep 17 00:00:00 2001 From: Michael Schmitz Date: Mon, 17 Sep 2018 15:27:49 -0700 Subject: [PATCH 1089/1762] Input: atakbd - fix Atari CapsLock behaviour The CapsLock key on Atari keyboards is not a toggle, it does send the normal make and break scancodes. Drop the CapsLock toggle handling code, which did cause the CapsLock key to merely act as a Shift key. Tested-by: Michael Schmitz Signed-off-by: Michael Schmitz Signed-off-by: Andreas Schwab Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/atakbd.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/input/keyboard/atakbd.c b/drivers/input/keyboard/atakbd.c index e989574a2e20..6caee807cafa 100644 --- a/drivers/input/keyboard/atakbd.c +++ b/drivers/input/keyboard/atakbd.c @@ -185,14 +185,8 @@ static void atakbd_interrupt(unsigned char scancode, char down) scancode = atakbd_keycode[scancode]; - if (scancode == KEY_CAPSLOCK) { /* CapsLock is a toggle switch key on Amiga */ - input_report_key(atakbd_dev, scancode, 1); - input_report_key(atakbd_dev, scancode, 0); - input_sync(atakbd_dev); - } else { - input_report_key(atakbd_dev, scancode, down); - input_sync(atakbd_dev); - } + input_report_key(atakbd_dev, scancode, down); + input_sync(atakbd_dev); } else /* scancodes >= 0xf3 are mouse data, most likely */ printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode); From 91a97507323e1ad4bfc10f4a5922e67cdaf8b3cd Mon Sep 17 00:00:00 2001 From: Aaron Ma Date: Tue, 18 Sep 2018 09:32:22 -0700 Subject: [PATCH 1090/1762] Input: elantech - enable middle button of touchpad on ThinkPad P72 Adding 2 new touchpad IDs to support middle button support. Cc: stable@vger.kernel.org Signed-off-by: Aaron Ma Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/elantech.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 44f57cf6675b..2d95e8d93cc7 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -1178,6 +1178,8 @@ static const struct dmi_system_id elantech_dmi_has_middle_button[] = { static const char * const middle_button_pnp_ids[] = { "LEN2131", /* ThinkPad P52 w/ NFC */ "LEN2132", /* ThinkPad P52 */ + "LEN2133", /* ThinkPad P72 w/ NFC */ + "LEN2134", /* ThinkPad P72 */ NULL }; From 4fef1250eafddc5182cd5c3c354a6971bcf7520d Mon Sep 17 00:00:00 2001 From: Peter Hutterer Date: Tue, 18 Sep 2018 09:53:32 -0700 Subject: [PATCH 1091/1762] Input: uinput - allow for max == min during input_absinfo validation These values are inclusive, so a range of 1 requires min == max. Signed-off-by: Peter Hutterer Reviewed-by: Martin Kepplinger Signed-off-by: Dmitry Torokhov --- drivers/input/misc/uinput.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index 96a887f33698..eb14ddf69346 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -410,7 +410,7 @@ static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code, min = abs->minimum; max = abs->maximum; - if ((min != 0 || max != 0) && max <= min) { + if ((min != 0 || max != 0) && max < min) { printk(KERN_DEBUG "%s: invalid abs[%02x] min:%d max:%d\n", UINPUT_NAME, code, min, max); From 8e2aac333785f91ff74e219a1e78e6bdc1ef2c41 Mon Sep 17 00:00:00 2001 From: Simon Detheridge Date: Sat, 15 Sep 2018 22:15:18 +0100 Subject: [PATCH 1092/1762] pinctrl: cannonlake: Fix gpio base for GPP-E The gpio base for GPP-E was set incorrectly to 258 instead of 256, preventing the touchpad working on my Tong Fang GK5CN5Z laptop. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=200787 Signed-off-by: Simon Detheridge Acked-by: Mika Westerberg Signed-off-by: Linus Walleij --- drivers/pinctrl/intel/pinctrl-cannonlake.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pinctrl/intel/pinctrl-cannonlake.c b/drivers/pinctrl/intel/pinctrl-cannonlake.c index fb1afe55bf53..8d48371caaa2 100644 --- a/drivers/pinctrl/intel/pinctrl-cannonlake.c +++ b/drivers/pinctrl/intel/pinctrl-cannonlake.c @@ -379,7 +379,7 @@ static const struct intel_padgroup cnlh_community1_gpps[] = { static const struct intel_padgroup cnlh_community3_gpps[] = { CNL_GPP(0, 155, 178, 192), /* GPP_K */ CNL_GPP(1, 179, 202, 224), /* GPP_H */ - CNL_GPP(2, 203, 215, 258), /* GPP_E */ + CNL_GPP(2, 203, 215, 256), /* GPP_E */ CNL_GPP(3, 216, 239, 288), /* GPP_F */ CNL_GPP(4, 240, 248, CNL_NO_GPIO), /* SPI */ }; From 19a4fbffc94e41abaa2a623a25ce2641d69eccf0 Mon Sep 17 00:00:00 2001 From: Ricardo Ribalda Delgado Date: Thu, 13 Sep 2018 15:37:04 +0200 Subject: [PATCH 1093/1762] gpiolib: Free the last requested descriptor The current code only frees N-1 gpios if an error occurs during gpiod_set_transitory, gpiod_direction_output or gpiod_direction_input. Leading to gpios that cannot be used by userspace nor other drivers. Cc: Timur Tabi Cc: stable@vger.kernel.org Fixes: ab3dbcf78f60f46d ("gpioib: do not free unrequested descriptors) Reported-by: Jan Lorenzen Reported-by: Jim Paris Signed-off-by: Ricardo Ribalda Delgado Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index e8f8a1999393..a57300c1d649 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -571,7 +571,7 @@ static int linehandle_create(struct gpio_device *gdev, void __user *ip) if (ret) goto out_free_descs; lh->descs[i] = desc; - count = i; + count = i + 1; if (lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW) set_bit(FLAG_ACTIVE_LOW, &desc->flags); From 8fce3331702316d4bcfeb0771c09ac75d2192bbc Mon Sep 17 00:00:00 2001 From: Jose Abreu Date: Mon, 17 Sep 2018 09:22:56 +0100 Subject: [PATCH 1094/1762] net: stmmac: Rework coalesce timer and fix multi-queue races This follows David Miller advice and tries to fix coalesce timer in multi-queue scenarios. We are now using per-queue coalesce values and per-queue TX timer. Coalesce timer default values was changed to 1ms and the coalesce frames to 25. Tested in B2B setup between XGMAC2 and GMAC5. Signed-off-by: Jose Abreu Fixes: ce736788e8a ("net: stmmac: adding multiple buffers for TX") Cc: Florian Fainelli Cc: Neil Armstrong Cc: Jerome Brunet Cc: Martin Blumenstingl Cc: David S. Miller Cc: Joao Pinto Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/common.h | 4 +- drivers/net/ethernet/stmicro/stmmac/stmmac.h | 14 +- .../net/ethernet/stmicro/stmmac/stmmac_main.c | 233 ++++++++++-------- include/linux/stmmac.h | 1 + 4 files changed, 146 insertions(+), 106 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h index 1854f270ad66..b1b305f8f414 100644 --- a/drivers/net/ethernet/stmicro/stmmac/common.h +++ b/drivers/net/ethernet/stmicro/stmmac/common.h @@ -258,10 +258,10 @@ struct stmmac_safety_stats { #define MAX_DMA_RIWT 0xff #define MIN_DMA_RIWT 0x20 /* Tx coalesce parameters */ -#define STMMAC_COAL_TX_TIMER 40000 +#define STMMAC_COAL_TX_TIMER 1000 #define STMMAC_MAX_COAL_TX_TICK 100000 #define STMMAC_TX_MAX_FRAMES 256 -#define STMMAC_TX_FRAMES 64 +#define STMMAC_TX_FRAMES 25 /* Packets types */ enum packets_types { diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index c0a855b7ab3b..63e1064b27a2 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -48,6 +48,8 @@ struct stmmac_tx_info { /* Frequently used values are kept adjacent for cache effect */ struct stmmac_tx_queue { + u32 tx_count_frames; + struct timer_list txtimer; u32 queue_index; struct stmmac_priv *priv_data; struct dma_extended_desc *dma_etx ____cacheline_aligned_in_smp; @@ -73,7 +75,14 @@ struct stmmac_rx_queue { u32 rx_zeroc_thresh; dma_addr_t dma_rx_phy; u32 rx_tail_addr; +}; + +struct stmmac_channel { struct napi_struct napi ____cacheline_aligned_in_smp; + struct stmmac_priv *priv_data; + u32 index; + int has_rx; + int has_tx; }; struct stmmac_tc_entry { @@ -109,14 +118,12 @@ struct stmmac_pps_cfg { struct stmmac_priv { /* Frequently used values are kept adjacent for cache effect */ - u32 tx_count_frames; u32 tx_coal_frames; u32 tx_coal_timer; int tx_coalesce; int hwts_tx_en; bool tx_path_in_lpi_mode; - struct timer_list txtimer; bool tso; unsigned int dma_buf_sz; @@ -137,6 +144,9 @@ struct stmmac_priv { /* TX Queue */ struct stmmac_tx_queue tx_queue[MTL_MAX_TX_QUEUES]; + /* Generic channel for NAPI */ + struct stmmac_channel channel[STMMAC_CH_MAX]; + bool oldlink; int speed; int oldduplex; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 9f458bb16f2a..ab9cc0143ff2 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -148,12 +148,14 @@ static void stmmac_verify_args(void) static void stmmac_disable_all_queues(struct stmmac_priv *priv) { u32 rx_queues_cnt = priv->plat->rx_queues_to_use; + u32 tx_queues_cnt = priv->plat->tx_queues_to_use; + u32 maxq = max(rx_queues_cnt, tx_queues_cnt); u32 queue; - for (queue = 0; queue < rx_queues_cnt; queue++) { - struct stmmac_rx_queue *rx_q = &priv->rx_queue[queue]; + for (queue = 0; queue < maxq; queue++) { + struct stmmac_channel *ch = &priv->channel[queue]; - napi_disable(&rx_q->napi); + napi_disable(&ch->napi); } } @@ -164,12 +166,14 @@ static void stmmac_disable_all_queues(struct stmmac_priv *priv) static void stmmac_enable_all_queues(struct stmmac_priv *priv) { u32 rx_queues_cnt = priv->plat->rx_queues_to_use; + u32 tx_queues_cnt = priv->plat->tx_queues_to_use; + u32 maxq = max(rx_queues_cnt, tx_queues_cnt); u32 queue; - for (queue = 0; queue < rx_queues_cnt; queue++) { - struct stmmac_rx_queue *rx_q = &priv->rx_queue[queue]; + for (queue = 0; queue < maxq; queue++) { + struct stmmac_channel *ch = &priv->channel[queue]; - napi_enable(&rx_q->napi); + napi_enable(&ch->napi); } } @@ -1843,18 +1847,18 @@ static void stmmac_dma_operation_mode(struct stmmac_priv *priv) * @queue: TX queue index * Description: it reclaims the transmit resources after transmission completes. */ -static void stmmac_tx_clean(struct stmmac_priv *priv, u32 queue) +static int stmmac_tx_clean(struct stmmac_priv *priv, int budget, u32 queue) { struct stmmac_tx_queue *tx_q = &priv->tx_queue[queue]; unsigned int bytes_compl = 0, pkts_compl = 0; - unsigned int entry; + unsigned int entry, count = 0; - netif_tx_lock(priv->dev); + __netif_tx_lock_bh(netdev_get_tx_queue(priv->dev, queue)); priv->xstats.tx_clean++; entry = tx_q->dirty_tx; - while (entry != tx_q->cur_tx) { + while ((entry != tx_q->cur_tx) && (count < budget)) { struct sk_buff *skb = tx_q->tx_skbuff[entry]; struct dma_desc *p; int status; @@ -1870,6 +1874,8 @@ static void stmmac_tx_clean(struct stmmac_priv *priv, u32 queue) if (unlikely(status & tx_dma_own)) break; + count++; + /* Make sure descriptor fields are read after reading * the own bit. */ @@ -1937,7 +1943,10 @@ static void stmmac_tx_clean(struct stmmac_priv *priv, u32 queue) stmmac_enable_eee_mode(priv); mod_timer(&priv->eee_ctrl_timer, STMMAC_LPI_T(eee_timer)); } - netif_tx_unlock(priv->dev); + + __netif_tx_unlock_bh(netdev_get_tx_queue(priv->dev, queue)); + + return count; } /** @@ -2020,6 +2029,33 @@ static bool stmmac_safety_feat_interrupt(struct stmmac_priv *priv) return false; } +static int stmmac_napi_check(struct stmmac_priv *priv, u32 chan) +{ + int status = stmmac_dma_interrupt_status(priv, priv->ioaddr, + &priv->xstats, chan); + struct stmmac_channel *ch = &priv->channel[chan]; + bool needs_work = false; + + if ((status & handle_rx) && ch->has_rx) { + needs_work = true; + } else { + status &= ~handle_rx; + } + + if ((status & handle_tx) && ch->has_tx) { + needs_work = true; + } else { + status &= ~handle_tx; + } + + if (needs_work && napi_schedule_prep(&ch->napi)) { + stmmac_disable_dma_irq(priv, priv->ioaddr, chan); + __napi_schedule(&ch->napi); + } + + return status; +} + /** * stmmac_dma_interrupt - DMA ISR * @priv: driver private structure @@ -2034,57 +2070,14 @@ static void stmmac_dma_interrupt(struct stmmac_priv *priv) u32 channels_to_check = tx_channel_count > rx_channel_count ? tx_channel_count : rx_channel_count; u32 chan; - bool poll_scheduled = false; int status[max_t(u32, MTL_MAX_TX_QUEUES, MTL_MAX_RX_QUEUES)]; /* Make sure we never check beyond our status buffer. */ if (WARN_ON_ONCE(channels_to_check > ARRAY_SIZE(status))) channels_to_check = ARRAY_SIZE(status); - /* Each DMA channel can be used for rx and tx simultaneously, yet - * napi_struct is embedded in struct stmmac_rx_queue rather than in a - * stmmac_channel struct. - * Because of this, stmmac_poll currently checks (and possibly wakes) - * all tx queues rather than just a single tx queue. - */ for (chan = 0; chan < channels_to_check; chan++) - status[chan] = stmmac_dma_interrupt_status(priv, priv->ioaddr, - &priv->xstats, chan); - - for (chan = 0; chan < rx_channel_count; chan++) { - if (likely(status[chan] & handle_rx)) { - struct stmmac_rx_queue *rx_q = &priv->rx_queue[chan]; - - if (likely(napi_schedule_prep(&rx_q->napi))) { - stmmac_disable_dma_irq(priv, priv->ioaddr, chan); - __napi_schedule(&rx_q->napi); - poll_scheduled = true; - } - } - } - - /* If we scheduled poll, we already know that tx queues will be checked. - * If we didn't schedule poll, see if any DMA channel (used by tx) has a - * completed transmission, if so, call stmmac_poll (once). - */ - if (!poll_scheduled) { - for (chan = 0; chan < tx_channel_count; chan++) { - if (status[chan] & handle_tx) { - /* It doesn't matter what rx queue we choose - * here. We use 0 since it always exists. - */ - struct stmmac_rx_queue *rx_q = - &priv->rx_queue[0]; - - if (likely(napi_schedule_prep(&rx_q->napi))) { - stmmac_disable_dma_irq(priv, - priv->ioaddr, chan); - __napi_schedule(&rx_q->napi); - } - break; - } - } - } + status[chan] = stmmac_napi_check(priv, chan); for (chan = 0; chan < tx_channel_count; chan++) { if (unlikely(status[chan] & tx_hard_error_bump_tc)) { @@ -2233,6 +2226,13 @@ static int stmmac_init_dma_engine(struct stmmac_priv *priv) return ret; } +static void stmmac_tx_timer_arm(struct stmmac_priv *priv, u32 queue) +{ + struct stmmac_tx_queue *tx_q = &priv->tx_queue[queue]; + + mod_timer(&tx_q->txtimer, STMMAC_COAL_TIMER(priv->tx_coal_timer)); +} + /** * stmmac_tx_timer - mitigation sw timer for tx. * @data: data pointer @@ -2241,13 +2241,14 @@ static int stmmac_init_dma_engine(struct stmmac_priv *priv) */ static void stmmac_tx_timer(struct timer_list *t) { - struct stmmac_priv *priv = from_timer(priv, t, txtimer); - u32 tx_queues_count = priv->plat->tx_queues_to_use; - u32 queue; + struct stmmac_tx_queue *tx_q = from_timer(tx_q, t, txtimer); + struct stmmac_priv *priv = tx_q->priv_data; + struct stmmac_channel *ch; - /* let's scan all the tx queues */ - for (queue = 0; queue < tx_queues_count; queue++) - stmmac_tx_clean(priv, queue); + ch = &priv->channel[tx_q->queue_index]; + + if (likely(napi_schedule_prep(&ch->napi))) + __napi_schedule(&ch->napi); } /** @@ -2260,11 +2261,17 @@ static void stmmac_tx_timer(struct timer_list *t) */ static void stmmac_init_tx_coalesce(struct stmmac_priv *priv) { + u32 tx_channel_count = priv->plat->tx_queues_to_use; + u32 chan; + priv->tx_coal_frames = STMMAC_TX_FRAMES; priv->tx_coal_timer = STMMAC_COAL_TX_TIMER; - timer_setup(&priv->txtimer, stmmac_tx_timer, 0); - priv->txtimer.expires = STMMAC_COAL_TIMER(priv->tx_coal_timer); - add_timer(&priv->txtimer); + + for (chan = 0; chan < tx_channel_count; chan++) { + struct stmmac_tx_queue *tx_q = &priv->tx_queue[chan]; + + timer_setup(&tx_q->txtimer, stmmac_tx_timer, 0); + } } static void stmmac_set_rings_length(struct stmmac_priv *priv) @@ -2592,6 +2599,7 @@ static void stmmac_hw_teardown(struct net_device *dev) static int stmmac_open(struct net_device *dev) { struct stmmac_priv *priv = netdev_priv(dev); + u32 chan; int ret; stmmac_check_ether_addr(priv); @@ -2688,7 +2696,9 @@ irq_error: if (dev->phydev) phy_stop(dev->phydev); - del_timer_sync(&priv->txtimer); + for (chan = 0; chan < priv->plat->tx_queues_to_use; chan++) + del_timer_sync(&priv->tx_queue[chan].txtimer); + stmmac_hw_teardown(dev); init_error: free_dma_desc_resources(priv); @@ -2708,6 +2718,7 @@ dma_desc_error: static int stmmac_release(struct net_device *dev) { struct stmmac_priv *priv = netdev_priv(dev); + u32 chan; if (priv->eee_enabled) del_timer_sync(&priv->eee_ctrl_timer); @@ -2722,7 +2733,8 @@ static int stmmac_release(struct net_device *dev) stmmac_disable_all_queues(priv); - del_timer_sync(&priv->txtimer); + for (chan = 0; chan < priv->plat->tx_queues_to_use; chan++) + del_timer_sync(&priv->tx_queue[chan].txtimer); /* Free the IRQ lines */ free_irq(dev->irq, dev); @@ -2936,14 +2948,13 @@ static netdev_tx_t stmmac_tso_xmit(struct sk_buff *skb, struct net_device *dev) priv->xstats.tx_tso_nfrags += nfrags; /* Manage tx mitigation */ - priv->tx_count_frames += nfrags + 1; - if (likely(priv->tx_coal_frames > priv->tx_count_frames)) { - mod_timer(&priv->txtimer, - STMMAC_COAL_TIMER(priv->tx_coal_timer)); - } else { - priv->tx_count_frames = 0; + tx_q->tx_count_frames += nfrags + 1; + if (priv->tx_coal_frames <= tx_q->tx_count_frames) { stmmac_set_tx_ic(priv, desc); priv->xstats.tx_set_ic_bit++; + tx_q->tx_count_frames = 0; + } else { + stmmac_tx_timer_arm(priv, queue); } skb_tx_timestamp(skb); @@ -3146,14 +3157,13 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) * This approach takes care about the fragments: desc is the first * element in case of no SG. */ - priv->tx_count_frames += nfrags + 1; - if (likely(priv->tx_coal_frames > priv->tx_count_frames)) { - mod_timer(&priv->txtimer, - STMMAC_COAL_TIMER(priv->tx_coal_timer)); - } else { - priv->tx_count_frames = 0; + tx_q->tx_count_frames += nfrags + 1; + if (priv->tx_coal_frames <= tx_q->tx_count_frames) { stmmac_set_tx_ic(priv, desc); priv->xstats.tx_set_ic_bit++; + tx_q->tx_count_frames = 0; + } else { + stmmac_tx_timer_arm(priv, queue); } skb_tx_timestamp(skb); @@ -3199,6 +3209,7 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) netdev_tx_sent_queue(netdev_get_tx_queue(dev, queue), skb->len); stmmac_enable_dma_transmission(priv, priv->ioaddr); + stmmac_set_tx_tail_ptr(priv, priv->ioaddr, tx_q->tx_tail_addr, queue); return NETDEV_TX_OK; @@ -3319,6 +3330,7 @@ static inline void stmmac_rx_refill(struct stmmac_priv *priv, u32 queue) static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue) { struct stmmac_rx_queue *rx_q = &priv->rx_queue[queue]; + struct stmmac_channel *ch = &priv->channel[queue]; unsigned int entry = rx_q->cur_rx; int coe = priv->hw->rx_csum; unsigned int next_entry; @@ -3491,7 +3503,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue) else skb->ip_summed = CHECKSUM_UNNECESSARY; - napi_gro_receive(&rx_q->napi, skb); + napi_gro_receive(&ch->napi, skb); priv->dev->stats.rx_packets++; priv->dev->stats.rx_bytes += frame_len; @@ -3514,27 +3526,33 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue) * Description : * To look at the incoming frames and clear the tx resources. */ -static int stmmac_poll(struct napi_struct *napi, int budget) +static int stmmac_napi_poll(struct napi_struct *napi, int budget) { - struct stmmac_rx_queue *rx_q = - container_of(napi, struct stmmac_rx_queue, napi); - struct stmmac_priv *priv = rx_q->priv_data; - u32 tx_count = priv->plat->tx_queues_to_use; - u32 chan = rx_q->queue_index; - int work_done = 0; - u32 queue; + struct stmmac_channel *ch = + container_of(napi, struct stmmac_channel, napi); + struct stmmac_priv *priv = ch->priv_data; + int work_done = 0, work_rem = budget; + u32 chan = ch->index; priv->xstats.napi_poll++; - /* check all the queues */ - for (queue = 0; queue < tx_count; queue++) - stmmac_tx_clean(priv, queue); + if (ch->has_tx) { + int done = stmmac_tx_clean(priv, work_rem, chan); - work_done = stmmac_rx(priv, budget, rx_q->queue_index); - if (work_done < budget) { - napi_complete_done(napi, work_done); - stmmac_enable_dma_irq(priv, priv->ioaddr, chan); + work_done += done; + work_rem -= done; } + + if (ch->has_rx) { + int done = stmmac_rx(priv, work_rem, chan); + + work_done += done; + work_rem -= done; + } + + if (work_done < budget && napi_complete_done(napi, work_done)) + stmmac_enable_dma_irq(priv, priv->ioaddr, chan); + return work_done; } @@ -4198,8 +4216,8 @@ int stmmac_dvr_probe(struct device *device, { struct net_device *ndev = NULL; struct stmmac_priv *priv; + u32 queue, maxq; int ret = 0; - u32 queue; ndev = alloc_etherdev_mqs(sizeof(struct stmmac_priv), MTL_MAX_TX_QUEUES, @@ -4322,11 +4340,22 @@ int stmmac_dvr_probe(struct device *device, "Enable RX Mitigation via HW Watchdog Timer\n"); } - for (queue = 0; queue < priv->plat->rx_queues_to_use; queue++) { - struct stmmac_rx_queue *rx_q = &priv->rx_queue[queue]; + /* Setup channels NAPI */ + maxq = max(priv->plat->rx_queues_to_use, priv->plat->tx_queues_to_use); - netif_napi_add(ndev, &rx_q->napi, stmmac_poll, - (8 * priv->plat->rx_queues_to_use)); + for (queue = 0; queue < maxq; queue++) { + struct stmmac_channel *ch = &priv->channel[queue]; + + ch->priv_data = priv; + ch->index = queue; + + if (queue < priv->plat->rx_queues_to_use) + ch->has_rx = true; + if (queue < priv->plat->tx_queues_to_use) + ch->has_tx = true; + + netif_napi_add(ndev, &ch->napi, stmmac_napi_poll, + NAPI_POLL_WEIGHT); } mutex_init(&priv->lock); @@ -4372,10 +4401,10 @@ error_netdev_register: priv->hw->pcs != STMMAC_PCS_RTBI) stmmac_mdio_unregister(ndev); error_mdio_register: - for (queue = 0; queue < priv->plat->rx_queues_to_use; queue++) { - struct stmmac_rx_queue *rx_q = &priv->rx_queue[queue]; + for (queue = 0; queue < maxq; queue++) { + struct stmmac_channel *ch = &priv->channel[queue]; - netif_napi_del(&rx_q->napi); + netif_napi_del(&ch->napi); } error_hw_init: destroy_workqueue(priv->wq); diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index c43e9a01b892..7ddfc65586b0 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -30,6 +30,7 @@ #define MTL_MAX_RX_QUEUES 8 #define MTL_MAX_TX_QUEUES 8 +#define STMMAC_CH_MAX 8 #define STMMAC_RX_COE_NONE 0 #define STMMAC_RX_COE_TYPE1 1 From 0431100b3d82c509729ece1ab22ada2484e209c1 Mon Sep 17 00:00:00 2001 From: Jose Abreu Date: Mon, 17 Sep 2018 09:22:57 +0100 Subject: [PATCH 1095/1762] net: stmmac: Fixup the tail addr setting in xmit path Currently we are always setting the tail address of descriptor list to the end of the pre-allocated list. According to databook this is not correct. Tail address should point to the last available descriptor + 1, which means we have to update the tail address everytime we call the xmit function. This should make no impact in older versions of MAC but in newer versions there are some DMA features which allows the IP to fetch descriptors in advance and in a non sequential order so its critical that we set the tail address correctly. Signed-off-by: Jose Abreu Fixes: f748be531d70 ("stmmac: support new GMAC4") Cc: David S. Miller Cc: Joao Pinto Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index ab9cc0143ff2..75896d6ba6e2 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -2213,8 +2213,7 @@ static int stmmac_init_dma_engine(struct stmmac_priv *priv) stmmac_init_tx_chan(priv, priv->ioaddr, priv->plat->dma_cfg, tx_q->dma_tx_phy, chan); - tx_q->tx_tail_addr = tx_q->dma_tx_phy + - (DMA_TX_SIZE * sizeof(struct dma_desc)); + tx_q->tx_tail_addr = tx_q->dma_tx_phy; stmmac_set_tx_tail_ptr(priv, priv->ioaddr, tx_q->tx_tail_addr, chan); } @@ -3003,6 +3002,7 @@ static netdev_tx_t stmmac_tso_xmit(struct sk_buff *skb, struct net_device *dev) netdev_tx_sent_queue(netdev_get_tx_queue(dev, queue), skb->len); + tx_q->tx_tail_addr = tx_q->dma_tx_phy + (tx_q->cur_tx * sizeof(*desc)); stmmac_set_tx_tail_ptr(priv, priv->ioaddr, tx_q->tx_tail_addr, queue); return NETDEV_TX_OK; @@ -3210,6 +3210,7 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) stmmac_enable_dma_transmission(priv, priv->ioaddr); + tx_q->tx_tail_addr = tx_q->dma_tx_phy + (tx_q->cur_tx * sizeof(*desc)); stmmac_set_tx_tail_ptr(priv, priv->ioaddr, tx_q->tx_tail_addr, queue); return NETDEV_TX_OK; From 0a286afee5a1e8dca86d824209dbd3200294f86f Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Mon, 17 Sep 2018 15:30:06 +0200 Subject: [PATCH 1096/1762] selftests: pmtu: properly redirect stderr to /dev/null The cleanup function uses "$CMD 2 > /dev/null", which doesn't actually send stderr to /dev/null, so when the netns doesn't exist, the error message is shown. Use "2> /dev/null" instead, so that those messages disappear, as was intended. Fixes: d1f1b9cbf34c ("selftests: net: Introduce first PMTU test") Signed-off-by: Sabrina Dubroca Acked-by: Stefano Brivio Signed-off-by: David S. Miller --- tools/testing/selftests/net/pmtu.sh | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh index 32a194e3e07a..0ab9423d009f 100755 --- a/tools/testing/selftests/net/pmtu.sh +++ b/tools/testing/selftests/net/pmtu.sh @@ -178,8 +178,8 @@ setup() { cleanup() { [ ${cleanup_done} -eq 1 ] && return - ip netns del ${NS_A} 2 > /dev/null - ip netns del ${NS_B} 2 > /dev/null + ip netns del ${NS_A} 2> /dev/null + ip netns del ${NS_B} 2> /dev/null cleanup_done=1 } From 674d9de02aa7d521ebdf66c3958758bdd9c64e11 Mon Sep 17 00:00:00 2001 From: Suren Baghdasaryan Date: Mon, 17 Sep 2018 15:51:40 +0200 Subject: [PATCH 1097/1762] NFC: Fix possible memory corruption when handling SHDLC I-Frame commands When handling SHDLC I-Frame commands "pipe" field used for indexing into an array should be checked before usage. If left unchecked it might access memory outside of the array of size NFC_HCI_MAX_PIPES(127). Malformed NFC HCI frames could be injected by a malicious NFC device communicating with the device being attacked (remote attack vector), or even by an attacker with physical access to the I2C bus such that they could influence the data transfers on that bus (local attack vector). skb->data is controlled by the attacker and has only been sanitized in the most trivial ways (CRC check), therefore we can consider the create_info struct and all of its members to tainted. 'create_info->pipe' with max value of 255 (uint8) is used to take an offset of the hdev->pipes array of 127 elements which can lead to OOB write. Cc: Samuel Ortiz Cc: Allen Pais Cc: "David S. Miller" Suggested-by: Kevin Deus Signed-off-by: Suren Baghdasaryan Acked-by: Kees Cook Cc: stable Signed-off-by: Greg Kroah-Hartman Signed-off-by: David S. Miller --- net/nfc/hci/core.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c index ac8030c4bcf8..19cb2e473ea6 100644 --- a/net/nfc/hci/core.c +++ b/net/nfc/hci/core.c @@ -209,6 +209,11 @@ void nfc_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd, } create_info = (struct hci_create_pipe_resp *)skb->data; + if (create_info->pipe >= NFC_HCI_MAX_PIPES) { + status = NFC_HCI_ANY_E_NOK; + goto exit; + } + /* Save the new created pipe and bind with local gate, * the description for skb->data[3] is destination gate id * but since we received this cmd from host controller, we @@ -232,6 +237,11 @@ void nfc_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd, } delete_info = (struct hci_delete_pipe_noti *)skb->data; + if (delete_info->pipe >= NFC_HCI_MAX_PIPES) { + status = NFC_HCI_ANY_E_NOK; + goto exit; + } + hdev->pipes[delete_info->pipe].gate = NFC_HCI_INVALID_GATE; hdev->pipes[delete_info->pipe].dest_host = NFC_HCI_INVALID_HOST; break; From e285d5bfb7e9785d289663baef252dd315e171f8 Mon Sep 17 00:00:00 2001 From: Suren Baghdasaryan Date: Mon, 17 Sep 2018 15:51:41 +0200 Subject: [PATCH 1098/1762] NFC: Fix the number of pipes According to ETSI TS 102 622 specification chapter 4.4 pipe identifier is 7 bits long which allows for 128 unique pipe IDs. Because NFC_HCI_MAX_PIPES is used as the number of pipes supported and not as the max pipe ID, its value should be 128 instead of 127. nfc_hci_recv_from_llc extracts pipe ID from packet header using NFC_HCI_FRAGMENT(0x7F) mask which allows for pipe ID value of 127. Same happens when NCI_HCP_MSG_GET_PIPE() is being used. With pipes array having only 127 elements and pipe ID of 127 the OOB memory access will result. Cc: Samuel Ortiz Cc: Allen Pais Cc: "David S. Miller" Suggested-by: Dan Carpenter Signed-off-by: Suren Baghdasaryan Reviewed-by: Kees Cook Cc: stable Signed-off-by: Greg Kroah-Hartman Signed-off-by: David S. Miller --- include/net/nfc/hci.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h index 316694dafa5b..008f466d1da7 100644 --- a/include/net/nfc/hci.h +++ b/include/net/nfc/hci.h @@ -87,7 +87,7 @@ struct nfc_hci_pipe { * According to specification 102 622 chapter 4.4 Pipes, * the pipe identifier is 7 bits long. */ -#define NFC_HCI_MAX_PIPES 127 +#define NFC_HCI_MAX_PIPES 128 struct nfc_hci_init_data { u8 gate_count; struct nfc_hci_gate gates[NFC_HCI_MAX_CUSTOM_GATES]; From 08e39982ef64f800fd1f9b9b92968d14d5fafa82 Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Mon, 17 Sep 2018 17:22:40 +0200 Subject: [PATCH 1099/1762] net: emac: fix fixed-link setup for the RTL8363SB switch On the Netgear WNDAP620, the emac ethernet isn't receiving nor xmitting any frames from/to the RTL8363SB (identifies itself as a RTL8367RB). This is caused by the emac hardware not knowing the forced link parameters for speed, duplex, pause, etc. This begs the question, how this was working on the original driver code, when it was necessary to set the phy_address and phy_map to 0xffffffff. But I guess without access to the old PPC405/440/460 hardware, it's not possible to know. Signed-off-by: Christian Lamparter Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/emac/core.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c index 372664686309..129f4e9f38da 100644 --- a/drivers/net/ethernet/ibm/emac/core.c +++ b/drivers/net/ethernet/ibm/emac/core.c @@ -2677,12 +2677,17 @@ static int emac_init_phy(struct emac_instance *dev) if (of_phy_is_fixed_link(np)) { int res = emac_dt_mdio_probe(dev); - if (!res) { - res = of_phy_register_fixed_link(np); - if (res) - mdiobus_unregister(dev->mii_bus); + if (res) + return res; + + res = of_phy_register_fixed_link(np); + dev->phy_dev = of_phy_find_device(np); + if (res || !dev->phy_dev) { + mdiobus_unregister(dev->mii_bus); + return res ? res : -EINVAL; } - return res; + emac_adjust_link(dev->ndev); + put_device(&dev->phy_dev->mdio.dev); } return 0; } From 65fac4fe9080714df80d430888834ce87c6716ba Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Tue, 18 Sep 2018 15:15:44 +0800 Subject: [PATCH 1100/1762] net: bnxt: Fix a uninitialized variable warning. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix the following compile warning: drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c:49:5: warning: ‘nvm_param.dir_type’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (nvm_param.dir_type == BNXT_NVM_PORT_CFG) Signed-off-by: zhong jiang Acked-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c index f3b9fbcc705b..790c684f08ab 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c @@ -46,6 +46,9 @@ static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg, } } + if (i == ARRAY_SIZE(nvm_params)) + return -EOPNOTSUPP; + if (nvm_param.dir_type == BNXT_NVM_PORT_CFG) idx = bp->pf.port_id; else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG) From 2fe397a3959de8a472f165e6d152f64cb77fa2cc Mon Sep 17 00:00:00 2001 From: Kazuya Mizuguchi Date: Tue, 18 Sep 2018 12:22:26 +0200 Subject: [PATCH 1101/1762] ravb: do not write 1 to reserved bits EtherAVB hardware requires 0 to be written to status register bits in order to clear them, however, care must be taken not to: 1. Clear other bits, by writing zero to them 2. Write one to reserved bits This patch corrects the ravb driver with respect to the second point above. This is done by defining reserved bit masks for the affected registers and, after auditing the code, ensure all sites that may write a one to a reserved bit use are suitably masked. Signed-off-by: Kazuya Mizuguchi Signed-off-by: Simon Horman Reviewed-by: Sergei Shtylyov Signed-off-by: David S. Miller --- drivers/net/ethernet/renesas/ravb.h | 5 +++++ drivers/net/ethernet/renesas/ravb_main.c | 11 ++++++----- drivers/net/ethernet/renesas/ravb_ptp.c | 2 +- 3 files changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index 1470fc12282b..9b6bf557a2f5 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -428,6 +428,7 @@ enum EIS_BIT { EIS_CULF1 = 0x00000080, EIS_TFFF = 0x00000100, EIS_QFS = 0x00010000, + EIS_RESERVED = (GENMASK(31, 17) | GENMASK(15, 11)), }; /* RIC0 */ @@ -472,6 +473,7 @@ enum RIS0_BIT { RIS0_FRF15 = 0x00008000, RIS0_FRF16 = 0x00010000, RIS0_FRF17 = 0x00020000, + RIS0_RESERVED = GENMASK(31, 18), }; /* RIC1 */ @@ -528,6 +530,7 @@ enum RIS2_BIT { RIS2_QFF16 = 0x00010000, RIS2_QFF17 = 0x00020000, RIS2_RFFF = 0x80000000, + RIS2_RESERVED = GENMASK(30, 18), }; /* TIC */ @@ -544,6 +547,7 @@ enum TIS_BIT { TIS_FTF1 = 0x00000002, /* Undocumented? */ TIS_TFUF = 0x00000100, TIS_TFWF = 0x00000200, + TIS_RESERVED = (GENMASK(31, 20) | GENMASK(15, 12) | GENMASK(7, 4)) }; /* ISS */ @@ -617,6 +621,7 @@ enum GIC_BIT { enum GIS_BIT { GIS_PTCF = 0x00000001, /* Undocumented? */ GIS_PTMF = 0x00000004, + GIS_RESERVED = GENMASK(15, 10), }; /* GIE (R-Car Gen3 only) */ diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index aff5516b781e..d6f753925352 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -739,10 +739,11 @@ static void ravb_error_interrupt(struct net_device *ndev) u32 eis, ris2; eis = ravb_read(ndev, EIS); - ravb_write(ndev, ~EIS_QFS, EIS); + ravb_write(ndev, ~(EIS_QFS | EIS_RESERVED), EIS); if (eis & EIS_QFS) { ris2 = ravb_read(ndev, RIS2); - ravb_write(ndev, ~(RIS2_QFF0 | RIS2_RFFF), RIS2); + ravb_write(ndev, ~(RIS2_QFF0 | RIS2_RFFF | RIS2_RESERVED), + RIS2); /* Receive Descriptor Empty int */ if (ris2 & RIS2_QFF0) @@ -795,7 +796,7 @@ static bool ravb_timestamp_interrupt(struct net_device *ndev) u32 tis = ravb_read(ndev, TIS); if (tis & TIS_TFUF) { - ravb_write(ndev, ~TIS_TFUF, TIS); + ravb_write(ndev, ~(TIS_TFUF | TIS_RESERVED), TIS); ravb_get_tx_tstamp(ndev); return true; } @@ -930,7 +931,7 @@ static int ravb_poll(struct napi_struct *napi, int budget) /* Processing RX Descriptor Ring */ if (ris0 & mask) { /* Clear RX interrupt */ - ravb_write(ndev, ~mask, RIS0); + ravb_write(ndev, ~(mask | RIS0_RESERVED), RIS0); if (ravb_rx(ndev, "a, q)) goto out; } @@ -938,7 +939,7 @@ static int ravb_poll(struct napi_struct *napi, int budget) if (tis & mask) { spin_lock_irqsave(&priv->lock, flags); /* Clear TX interrupt */ - ravb_write(ndev, ~mask, TIS); + ravb_write(ndev, ~(mask | TIS_RESERVED), TIS); ravb_tx_free(ndev, q, true); netif_wake_subqueue(ndev, q); mmiowb(); diff --git a/drivers/net/ethernet/renesas/ravb_ptp.c b/drivers/net/ethernet/renesas/ravb_ptp.c index 0721b5c35d91..dce2a40a31e3 100644 --- a/drivers/net/ethernet/renesas/ravb_ptp.c +++ b/drivers/net/ethernet/renesas/ravb_ptp.c @@ -315,7 +315,7 @@ void ravb_ptp_interrupt(struct net_device *ndev) } } - ravb_write(ndev, ~gis, GIS); + ravb_write(ndev, ~(gis | GIS_RESERVED), GIS); } void ravb_ptp_init(struct net_device *ndev, struct platform_device *pdev) From 648a5a7aed346c3b8fe7c32a835edfb0dfbf4451 Mon Sep 17 00:00:00 2001 From: Ursula Braun Date: Tue, 18 Sep 2018 15:46:34 +0200 Subject: [PATCH 1102/1762] net/smc: fix non-blocking connect problem In state SMC_INIT smc_poll() delegates polling to the internal CLC socket. This means, once the connect worker has finished its kernel_connect() step, the poll wake-up may occur. This is not intended. The wake-up should occur from the wake up call in smc_connect_work() after __smc_connect() has finished. Thus in state SMC_INIT this patch now calls sock_poll_wait() on the main SMC socket. Signed-off-by: Ursula Braun Signed-off-by: David S. Miller --- net/smc/af_smc.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 2d8a1e15e4f9..9c3976bcde46 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -742,7 +742,10 @@ static void smc_connect_work(struct work_struct *work) smc->sk.sk_err = -rc; out: - smc->sk.sk_state_change(&smc->sk); + if (smc->sk.sk_err) + smc->sk.sk_state_change(&smc->sk); + else + smc->sk.sk_write_space(&smc->sk); kfree(smc->connect_info); smc->connect_info = NULL; release_sock(&smc->sk); @@ -1529,7 +1532,7 @@ static __poll_t smc_poll(struct file *file, struct socket *sock, return EPOLLNVAL; smc = smc_sk(sock->sk); - if ((sk->sk_state == SMC_INIT) || smc->use_fallback) { + if (smc->use_fallback) { /* delegate to CLC child sock */ mask = smc->clcsock->ops->poll(file, smc->clcsock, wait); sk->sk_err = smc->clcsock->sk->sk_err; From 1ca52fcfaca43665d525645348801a6f4a4b9e9a Mon Sep 17 00:00:00 2001 From: Ursula Braun Date: Tue, 18 Sep 2018 15:46:35 +0200 Subject: [PATCH 1103/1762] net/smc: remove duplicate mutex_unlock For a failing smc_listen_rdma_finish() smc_listen_decline() is called. If fallback is possible, the new socket is already enqueued to be accepted in smc_listen_decline(). Avoid enqueuing a second time afterwards in this case, otherwise the smc_create_lgr_pending lock is released twice: [ 373.463976] WARNING: bad unlock balance detected! [ 373.463978] 4.18.0-rc7+ #123 Tainted: G O [ 373.463979] ------------------------------------- [ 373.463980] kworker/1:1/30 is trying to release lock (smc_create_lgr_pending) at: [ 373.463990] [<000003ff801205fc>] smc_listen_work+0x22c/0x5d0 [smc] [ 373.463991] but there are no more locks to release! [ 373.463991] other info that might help us debug this: [ 373.463993] 2 locks held by kworker/1:1/30: [ 373.463994] #0: 00000000772cbaed ((wq_completion)"events"){+.+.}, at: process_one_work+0x1ec/0x6b0 [ 373.464000] #1: 000000003ad0894a ((work_completion)(&new_smc->smc_listen_work)){+.+.}, at: process_one_work+0x1ec/0x6b0 [ 373.464003] stack backtrace: [ 373.464005] CPU: 1 PID: 30 Comm: kworker/1:1 Kdump: loaded Tainted: G O 4.18.0-rc7uschi+ #123 [ 373.464007] Hardware name: IBM 2827 H43 738 (LPAR) [ 373.464010] Workqueue: events smc_listen_work [smc] [ 373.464011] Call Trace: [ 373.464015] ([<0000000000114100>] show_stack+0x60/0xd8) [ 373.464019] [<0000000000a8c9bc>] dump_stack+0x9c/0xd8 [ 373.464021] [<00000000001dcaf8>] print_unlock_imbalance_bug+0xf8/0x108 [ 373.464022] [<00000000001e045c>] lock_release+0x114/0x4f8 [ 373.464025] [<0000000000aa87fa>] __mutex_unlock_slowpath+0x4a/0x300 [ 373.464027] [<000003ff801205fc>] smc_listen_work+0x22c/0x5d0 [smc] [ 373.464029] [<0000000000197a68>] process_one_work+0x2a8/0x6b0 [ 373.464030] [<0000000000197ec2>] worker_thread+0x52/0x410 [ 373.464033] [<000000000019fd0e>] kthread+0x15e/0x178 [ 373.464035] [<0000000000aaf58a>] kernel_thread_starter+0x6/0xc [ 373.464052] [<0000000000aaf584>] kernel_thread_starter+0x0/0xc [ 373.464054] INFO: lockdep is turned off. Signed-off-by: Ursula Braun Signed-off-by: David S. Miller --- net/smc/af_smc.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 9c3976bcde46..5c6d30eb4a71 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -1153,9 +1153,9 @@ static int smc_listen_rdma_reg(struct smc_sock *new_smc, int local_contact) } /* listen worker: finish RDMA setup */ -static void smc_listen_rdma_finish(struct smc_sock *new_smc, - struct smc_clc_msg_accept_confirm *cclc, - int local_contact) +static int smc_listen_rdma_finish(struct smc_sock *new_smc, + struct smc_clc_msg_accept_confirm *cclc, + int local_contact) { struct smc_link *link = &new_smc->conn.lgr->lnk[SMC_SINGLE_LINK]; int reason_code = 0; @@ -1178,11 +1178,12 @@ static void smc_listen_rdma_finish(struct smc_sock *new_smc, if (reason_code) goto decline; } - return; + return 0; decline: mutex_unlock(&smc_create_lgr_pending); smc_listen_decline(new_smc, reason_code, local_contact); + return reason_code; } /* setup for RDMA connection of server */ @@ -1279,8 +1280,10 @@ static void smc_listen_work(struct work_struct *work) } /* finish worker */ - if (!ism_supported) - smc_listen_rdma_finish(new_smc, &cclc, local_contact); + if (!ism_supported) { + if (smc_listen_rdma_finish(new_smc, &cclc, local_contact)) + return; + } smc_conn_save_peer_info(new_smc, &cclc); mutex_unlock(&smc_create_lgr_pending); smc_listen_out_connected(new_smc); From dd65d87a6abd537ae9bb3bdcee8905704b936884 Mon Sep 17 00:00:00 2001 From: Ursula Braun Date: Tue, 18 Sep 2018 15:46:36 +0200 Subject: [PATCH 1104/1762] net/smc: enable fallback for connection abort in state INIT If a linkgroup is terminated abnormally already due to failing LLC CONFIRM LINK or LLC ADD LINK, fallback to TCP is still possible. In this case do not switch to state SMC_PEERABORTWAIT and do not set sk_err. Signed-off-by: Ursula Braun Signed-off-by: David S. Miller --- net/smc/smc_close.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/net/smc/smc_close.c b/net/smc/smc_close.c index ac961dfb1ea1..ea2b87f29469 100644 --- a/net/smc/smc_close.c +++ b/net/smc/smc_close.c @@ -100,15 +100,14 @@ static void smc_close_active_abort(struct smc_sock *smc) struct smc_cdc_conn_state_flags *txflags = &smc->conn.local_tx_ctrl.conn_state_flags; - sk->sk_err = ECONNABORTED; - if (smc->clcsock && smc->clcsock->sk) { - smc->clcsock->sk->sk_err = ECONNABORTED; - smc->clcsock->sk->sk_state_change(smc->clcsock->sk); + if (sk->sk_state != SMC_INIT && smc->clcsock && smc->clcsock->sk) { + sk->sk_err = ECONNABORTED; + if (smc->clcsock && smc->clcsock->sk) { + smc->clcsock->sk->sk_err = ECONNABORTED; + smc->clcsock->sk->sk_state_change(smc->clcsock->sk); + } } switch (sk->sk_state) { - case SMC_INIT: - sk->sk_state = SMC_PEERABORTWAIT; - break; case SMC_ACTIVE: sk->sk_state = SMC_PEERABORTWAIT; release_sock(sk); @@ -143,6 +142,7 @@ static void smc_close_active_abort(struct smc_sock *smc) case SMC_PEERFINCLOSEWAIT: sock_put(sk); /* passive closing */ break; + case SMC_INIT: case SMC_PEERABORTWAIT: case SMC_CLOSED: break; From 71d117f527425e2d6a5029e8365d82a8d2d6916a Mon Sep 17 00:00:00 2001 From: Karsten Graul Date: Tue, 18 Sep 2018 15:46:37 +0200 Subject: [PATCH 1105/1762] net/smc: no urgent data check for listen sockets Don't check a listen socket for pending urgent data in smc_poll(). Signed-off-by: Karsten Graul Signed-off-by: Ursula Braun Signed-off-by: David S. Miller --- net/smc/af_smc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 5c6d30eb4a71..015231789ed2 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -1566,9 +1566,9 @@ static __poll_t smc_poll(struct file *file, struct socket *sock, mask |= EPOLLIN | EPOLLRDNORM | EPOLLRDHUP; if (sk->sk_state == SMC_APPCLOSEWAIT1) mask |= EPOLLIN; + if (smc->conn.urg_state == SMC_URG_VALID) + mask |= EPOLLPRI; } - if (smc->conn.urg_state == SMC_URG_VALID) - mask |= EPOLLPRI; } return mask; From 381897798a94065ffcad0772eecdc6b04a7ff23d Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Tue, 18 Sep 2018 15:46:38 +0200 Subject: [PATCH 1106/1762] net/smc: fix sizeof to int comparison Comparing an int to a size, which is unsigned, causes the int to become unsigned, giving the wrong result. kernel_sendmsg can return a negative error code. Signed-off-by: YueHaibing Signed-off-by: Ursula Braun Signed-off-by: David S. Miller --- net/smc/smc_clc.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/net/smc/smc_clc.c b/net/smc/smc_clc.c index 83aba9ade060..52241d679cc9 100644 --- a/net/smc/smc_clc.c +++ b/net/smc/smc_clc.c @@ -446,14 +446,12 @@ int smc_clc_send_proposal(struct smc_sock *smc, int smc_type, vec[i++].iov_len = sizeof(trl); /* due to the few bytes needed for clc-handshake this cannot block */ len = kernel_sendmsg(smc->clcsock, &msg, vec, i, plen); - if (len < sizeof(pclc)) { - if (len >= 0) { - reason_code = -ENETUNREACH; - smc->sk.sk_err = -reason_code; - } else { - smc->sk.sk_err = smc->clcsock->sk->sk_err; - reason_code = -smc->sk.sk_err; - } + if (len < 0) { + smc->sk.sk_err = smc->clcsock->sk->sk_err; + reason_code = -smc->sk.sk_err; + } else if (len < (int)sizeof(pclc)) { + reason_code = -ENETUNREACH; + smc->sk.sk_err = -reason_code; } return reason_code; From 774268f3e51b53ed432a1ec516574fd5ba469398 Mon Sep 17 00:00:00 2001 From: Antoine Tenart Date: Tue, 18 Sep 2018 16:58:47 +0200 Subject: [PATCH 1107/1762] net: mvpp2: fix a txq_done race condition When no Tx IRQ is available, the txq_done() routine (called from tx_done()) shouldn't be called from the polling function, as in such case it is already called in the Tx path thanks to an hrtimer. This mostly occurred when using PPv2.1, as the engine then do not have Tx IRQs. Fixes: edc660fa09e2 ("net: mvpp2: replace TX coalescing interrupts with hrtimer") Reported-by: Stefan Chulski Signed-off-by: Antoine Tenart Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index 702fec82d806..38cc01beea79 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -3055,10 +3055,12 @@ static int mvpp2_poll(struct napi_struct *napi, int budget) cause_rx_tx & ~MVPP2_CAUSE_MISC_SUM_MASK); } - cause_tx = cause_rx_tx & MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK; - if (cause_tx) { - cause_tx >>= MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_OFFSET; - mvpp2_tx_done(port, cause_tx, qv->sw_thread_id); + if (port->has_tx_irqs) { + cause_tx = cause_rx_tx & MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK; + if (cause_tx) { + cause_tx >>= MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_OFFSET; + mvpp2_tx_done(port, cause_tx, qv->sw_thread_id); + } } /* Process RX packets */ From 126d6848ef13958e1cb959e96c21d19bc498ade9 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 18 Sep 2018 16:48:53 +0100 Subject: [PATCH 1108/1762] sfp: fix oops with ethtool -m If a network interface is created prior to the SFP socket being available, ethtool can request module information. This unfortunately leads to an oops: Unable to handle kernel NULL pointer dereference at virtual address 00000008 pgd = (ptrval) [00000008] *pgd=7c400831, *pte=00000000, *ppte=00000000 Internal error: Oops: 17 [#1] SMP ARM Modules linked in: CPU: 0 PID: 1480 Comm: ethtool Not tainted 4.19.0-rc3 #138 Hardware name: Broadcom Northstar Plus SoC PC is at sfp_get_module_info+0x8/0x10 LR is at dev_ethtool+0x218c/0x2afc Fix this by not filling in the network device's SFP bus pointer until SFP is fully bound, thereby avoiding the core calling into the SFP bus code. Fixes: ce0aa27ff3f6 ("sfp: add sfp-bus to bridge between network devices and sfp cages") Reported-by: Florian Fainelli Tested-by: Florian Fainelli Signed-off-by: Russell King Signed-off-by: David S. Miller --- drivers/net/phy/sfp-bus.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/phy/sfp-bus.c b/drivers/net/phy/sfp-bus.c index 740655261e5b..83060fb349f4 100644 --- a/drivers/net/phy/sfp-bus.c +++ b/drivers/net/phy/sfp-bus.c @@ -349,6 +349,7 @@ static int sfp_register_bus(struct sfp_bus *bus) } if (bus->started) bus->socket_ops->start(bus->sfp); + bus->netdev->sfp_bus = bus; bus->registered = true; return 0; } @@ -357,6 +358,7 @@ static void sfp_unregister_bus(struct sfp_bus *bus) { const struct sfp_upstream_ops *ops = bus->upstream_ops; + bus->netdev->sfp_bus = NULL; if (bus->registered) { if (bus->started) bus->socket_ops->stop(bus->sfp); @@ -438,7 +440,6 @@ static void sfp_upstream_clear(struct sfp_bus *bus) { bus->upstream_ops = NULL; bus->upstream = NULL; - bus->netdev->sfp_bus = NULL; bus->netdev = NULL; } @@ -467,7 +468,6 @@ struct sfp_bus *sfp_register_upstream(struct fwnode_handle *fwnode, bus->upstream_ops = ops; bus->upstream = upstream; bus->netdev = ndev; - ndev->sfp_bus = bus; if (bus->sfp) { ret = sfp_register_bus(bus); From 8675860592321a43bbb0b5aedc244a9b2321edc3 Mon Sep 17 00:00:00 2001 From: Wei Wang Date: Tue, 18 Sep 2018 13:44:59 -0700 Subject: [PATCH 1109/1762] Revert "ipv6: fix double refcount of fib6_metrics" This reverts commit e70a3aad44cc8b24986687ffc98c4a4f6ecf25ea. This change causes use-after-free on dst->_metrics. The crash trace looks like this: [ 97.763269] BUG: KASAN: use-after-free in ip6_mtu+0x116/0x140 [ 97.769038] Read of size 4 at addr ffff881781d2cf84 by task svw_NetThreadEv/8801 [ 97.777954] CPU: 76 PID: 8801 Comm: svw_NetThreadEv Not tainted 4.15.0-smp-DEV #11 [ 97.777956] Hardware name: Default string Default string/Indus_QC_02, BIOS 5.46.4 03/29/2018 [ 97.777957] Call Trace: [ 97.777971] [] dump_stack+0x4d/0x72 [ 97.777985] [] print_address_description+0x6f/0x260 [ 97.777997] [] kasan_report+0x257/0x370 [ 97.778001] [] ? ip6_mtu+0x116/0x140 [ 97.778004] [] __asan_report_load4_noabort+0x19/0x20 [ 97.778008] [] ip6_mtu+0x116/0x140 [ 97.778013] [] tcp_current_mss+0x12e/0x280 [ 97.778016] [] ? tcp_mtu_to_mss+0x2d0/0x2d0 [ 97.778022] [] ? depot_save_stack+0x138/0x4a0 [ 97.778037] [] ? __mmdrop+0x145/0x1f0 [ 97.778040] [] ? save_stack+0xb1/0xd0 [ 97.778046] [] tcp_send_mss+0x22/0x220 [ 97.778059] [] tcp_sendmsg_locked+0x4f9/0x39f0 [ 97.778062] [] ? kasan_check_write+0x14/0x20 [ 97.778066] [] ? tcp_sendpage+0x60/0x60 [ 97.778070] [] ? rw_copy_check_uvector+0x69/0x280 [ 97.778075] [] ? import_iovec+0x9f/0x430 [ 97.778078] [] ? kasan_slab_free+0x87/0xc0 [ 97.778082] [] ? memzero_page+0x140/0x140 [ 97.778085] [] ? kasan_check_write+0x14/0x20 [ 97.778088] [] tcp_sendmsg+0x2c/0x50 [ 97.778092] [] ? tcp_sendmsg+0x2c/0x50 [ 97.778098] [] inet_sendmsg+0x103/0x480 [ 97.778102] [] ? inet_gso_segment+0x15b0/0x15b0 [ 97.778105] [] sock_sendmsg+0xba/0xf0 [ 97.778108] [] ___sys_sendmsg+0x6ca/0x8e0 [ 97.778113] [] ? hrtimer_try_to_cancel+0x71/0x3b0 [ 97.778116] [] ? copy_msghdr_from_user+0x3d0/0x3d0 [ 97.778119] [] ? memset+0x31/0x40 [ 97.778123] [] ? schedule_hrtimeout_range_clock+0x165/0x380 [ 97.778127] [] ? hrtimer_nanosleep_restart+0x250/0x250 [ 97.778130] [] ? __hrtimer_init+0x180/0x180 [ 97.778133] [] ? ktime_get_ts64+0x172/0x200 [ 97.778137] [] ? __fget_light+0x8c/0x2f0 [ 97.778141] [] __sys_sendmsg+0xe6/0x190 [ 97.778144] [] ? __sys_sendmsg+0xe6/0x190 [ 97.778147] [] ? SyS_shutdown+0x20/0x20 [ 97.778152] [] ? wake_up_q+0xe0/0xe0 [ 97.778155] [] ? __sys_sendmsg+0x190/0x190 [ 97.778158] [] SyS_sendmsg+0x13/0x20 [ 97.778162] [] do_syscall_64+0x2ac/0x430 [ 97.778166] [] ? do_page_fault+0x35/0x3d0 [ 97.778171] [] ? page_fault+0x2f/0x50 [ 97.778174] [] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 97.778177] RIP: 0033:0x7f83fa36000d [ 97.778178] RSP: 002b:00007f83ef9229e0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 97.778180] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f83fa36000d [ 97.778182] RDX: 0000000000004000 RSI: 00007f83ef922f00 RDI: 0000000000000036 [ 97.778183] RBP: 00007f83ef923040 R08: 00007f83ef9231f8 R09: 00007f83ef923168 [ 97.778184] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f83f69c5b40 [ 97.778185] R13: 000000000000001c R14: 0000000000000001 R15: 0000000000004000 [ 97.779684] Allocated by task 5919: [ 97.783185] save_stack+0x46/0xd0 [ 97.783187] kasan_kmalloc+0xad/0xe0 [ 97.783189] kmem_cache_alloc_trace+0xdf/0x580 [ 97.783190] ip6_convert_metrics.isra.79+0x7e/0x190 [ 97.783192] ip6_route_info_create+0x60a/0x2480 [ 97.783193] ip6_route_add+0x1d/0x80 [ 97.783195] inet6_rtm_newroute+0xdd/0xf0 [ 97.783198] rtnetlink_rcv_msg+0x641/0xb10 [ 97.783200] netlink_rcv_skb+0x27b/0x3e0 [ 97.783202] rtnetlink_rcv+0x15/0x20 [ 97.783203] netlink_unicast+0x4be/0x720 [ 97.783204] netlink_sendmsg+0x7bc/0xbf0 [ 97.783205] sock_sendmsg+0xba/0xf0 [ 97.783207] ___sys_sendmsg+0x6ca/0x8e0 [ 97.783208] __sys_sendmsg+0xe6/0x190 [ 97.783209] SyS_sendmsg+0x13/0x20 [ 97.783211] do_syscall_64+0x2ac/0x430 [ 97.783213] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 97.784709] Freed by task 0: [ 97.785056] knetbase: Error: /proc/sys/net/core/txcs_enable does not exist [ 97.794497] save_stack+0x46/0xd0 [ 97.794499] kasan_slab_free+0x71/0xc0 [ 97.794500] kfree+0x7c/0xf0 [ 97.794501] fib6_info_destroy_rcu+0x24f/0x310 [ 97.794504] rcu_process_callbacks+0x38b/0x1730 [ 97.794506] __do_softirq+0x1c8/0x5d0 Reported-by: John Sperbeck Signed-off-by: Wei Wang Signed-off-by: Eric Dumazet Reviewed-by: David Ahern Signed-off-by: David S. Miller --- net/ipv6/route.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 480a79f47c52..b5d3e6b294ab 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -976,6 +976,10 @@ static void rt6_set_from(struct rt6_info *rt, struct fib6_info *from) rt->rt6i_flags &= ~RTF_EXPIRES; rcu_assign_pointer(rt->from, from); dst_init_metrics(&rt->dst, from->fib6_metrics->metrics, true); + if (from->fib6_metrics != &dst_default_metrics) { + rt->dst._metrics |= DST_METRICS_REFCOUNTED; + refcount_inc(&from->fib6_metrics->refcnt); + } } /* Caller must already hold reference to @ort */ From ce7ea4af0838ffd4667ecad4eb5eec7a25342f1e Mon Sep 17 00:00:00 2001 From: Wei Wang Date: Tue, 18 Sep 2018 13:45:00 -0700 Subject: [PATCH 1110/1762] ipv6: fix memory leak on dst->_metrics When dst->_metrics and f6i->fib6_metrics share the same memory, both take reference count on the dst_metrics structure. However, when dst is destroyed, ip6_dst_destroy() only invokes dst_destroy_metrics_generic() which does not take care of READONLY metrics and does not release refcnt. This causes memory leak. Similar to ipv4 logic, the fix is to properly release refcnt and free the memory space pointed by dst->_metrics if refcnt becomes 0. Fixes: 93531c674315 ("net/ipv6: separate handling of FIB entries from dst based routes") Reported-by: Sabrina Dubroca Signed-off-by: Wei Wang Signed-off-by: Eric Dumazet Reviewed-by: David Ahern Signed-off-by: David S. Miller --- net/ipv6/route.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index b5d3e6b294ab..826b14de7dbb 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -364,11 +364,14 @@ EXPORT_SYMBOL(ip6_dst_alloc); static void ip6_dst_destroy(struct dst_entry *dst) { + struct dst_metrics *p = (struct dst_metrics *)DST_METRICS_PTR(dst); struct rt6_info *rt = (struct rt6_info *)dst; struct fib6_info *from; struct inet6_dev *idev; - dst_destroy_metrics_generic(dst); + if (p != &dst_default_metrics && refcount_dec_and_test(&p->refcnt)) + kfree(p); + rt6_uncached_list_del(rt); idev = rt->rt6i_idev; From 558a9ef94a329a1ac75613407ad15d0d0071ff4c Mon Sep 17 00:00:00 2001 From: Icenowy Zheng Date: Sun, 16 Sep 2018 12:34:06 +0800 Subject: [PATCH 1111/1762] drm: sun4i: drop second PLL from A64 HDMI PHY The A64 HDMI PHY seems to be not able to use the second video PLL as clock parent in experiments. Drop the support for the second PLL from A64 HDMI PHY driver. Fixes: b46e2c9f5f64 ("drm/sun4i: Add support for A64 HDMI PHY") Signed-off-by: Icenowy Zheng Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20180916043409.62374-2-icenowy@aosc.io --- drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c index 82502b351aec..a564b5dfe082 100644 --- a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c +++ b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c @@ -398,7 +398,6 @@ static struct regmap_config sun8i_hdmi_phy_regmap_config = { static const struct sun8i_hdmi_phy_variant sun50i_a64_hdmi_phy = { .has_phy_clk = true, - .has_second_pll = true, .phy_init = &sun8i_hdmi_phy_init_h3, .phy_disable = &sun8i_hdmi_phy_disable_h3, .phy_config = &sun8i_hdmi_phy_config_h3, From 73aeb2cbcdc9be391b3d32a55319a59ce425426f Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Tue, 11 Sep 2018 04:27:41 +0100 Subject: [PATCH 1112/1762] ARM: 8787/1: wire up io_pgetevents syscall Wire up the new io_pgetevents syscall for ARM. Signed-off-by: Stefan Agner Acked-by: Christoph Hellwig Signed-off-by: Russell King --- arch/arm/tools/syscall.tbl | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl index fbc74b5fa3ed..8edf93b4490f 100644 --- a/arch/arm/tools/syscall.tbl +++ b/arch/arm/tools/syscall.tbl @@ -413,3 +413,4 @@ 396 common pkey_free sys_pkey_free 397 common statx sys_statx 398 common rseq sys_rseq +399 common io_pgetevents sys_io_pgetevents From 3a58ac65e2d7969bcdf1b6acb70fa4d12a88e53e Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Thu, 13 Sep 2018 16:48:08 +0100 Subject: [PATCH 1113/1762] ARM: 8799/1: mm: fix pci_ioremap_io() offset check IO_SPACE_LIMIT is the ending address of the PCI IO space, i.e something like 0xfffff (and not 0x100000). Therefore, when offset = 0xf0000 is passed as argument, this function fails even though the offset + SZ_64K fits below the IO_SPACE_LIMIT. This makes the last chunk of 64 KB of the I/O space not usable as it cannot be mapped. This patch fixes that by substracing 1 to offset + SZ_64K, so that we compare the addrss of the last byte of the I/O space against IO_SPACE_LIMIT instead of the address of the first byte of what is after the I/O space. Fixes: c2794437091a4 ("ARM: Add fixed PCI i/o mapping") Signed-off-by: Thomas Petazzoni Acked-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/mm/ioremap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c index fc91205ff46c..5bf9443cfbaa 100644 --- a/arch/arm/mm/ioremap.c +++ b/arch/arm/mm/ioremap.c @@ -473,7 +473,7 @@ void pci_ioremap_set_mem_type(int mem_type) int pci_ioremap_io(unsigned int offset, phys_addr_t phys_addr) { - BUG_ON(offset + SZ_64K > IO_SPACE_LIMIT); + BUG_ON(offset + SZ_64K - 1 > IO_SPACE_LIMIT); return ioremap_page_range(PCI_IO_VIRT_BASE + offset, PCI_IO_VIRT_BASE + offset + SZ_64K, From 571d0563c8881595f4ab027aef9ed1c55e3e7b7c Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 19 Sep 2018 13:35:53 +0300 Subject: [PATCH 1114/1762] x86/paravirt: Fix some warning messages The first argument to WARN_ONCE() is a condition. Fixes: 5800dc5c19f3 ("x86/paravirt: Fix spectre-v2 mitigations for paravirt guests") Signed-off-by: Dan Carpenter Signed-off-by: Thomas Gleixner Reviewed-by: Juergen Gross Cc: Peter Zijlstra Cc: Alok Kataria Cc: "H. Peter Anvin" Cc: virtualization@lists.linux-foundation.org Cc: kernel-janitors@vger.kernel.org Link: https://lkml.kernel.org/r/20180919103553.GD9238@mwanda --- arch/x86/kernel/paravirt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index afdb303285f8..8dc69d82567e 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -91,7 +91,7 @@ unsigned paravirt_patch_call(void *insnbuf, if (len < 5) { #ifdef CONFIG_RETPOLINE - WARN_ONCE("Failing to patch indirect CALL in %ps\n", (void *)addr); + WARN_ONCE(1, "Failing to patch indirect CALL in %ps\n", (void *)addr); #endif return len; /* call too long for patch site */ } @@ -111,7 +111,7 @@ unsigned paravirt_patch_jmp(void *insnbuf, const void *target, if (len < 5) { #ifdef CONFIG_RETPOLINE - WARN_ONCE("Failing to patch indirect JMP in %ps\n", (void *)addr); + WARN_ONCE(1, "Failing to patch indirect JMP in %ps\n", (void *)addr); #endif return len; /* call too long for patch site */ } From 9e796c9db93b4840d1b00e550eea26db7cb741e2 Mon Sep 17 00:00:00 2001 From: Toshi Kani Date: Fri, 14 Sep 2018 08:51:14 -0600 Subject: [PATCH 1115/1762] ext2, dax: set ext2_dax_aops for dax files Sync syscall to DAX file needs to flush processor cache, but it currently does not flush to existing DAX files. This is because 'ext2_da_aops' is set to address_space_operations of existing DAX files, instead of 'ext2_dax_aops', since S_DAX flag is set after ext2_set_aops() in the open path. Similar to ext4, change ext2_iget() to initialize i_flags before ext2_set_aops(). Fixes: fb094c90748f ("ext2, dax: introduce ext2_dax_aops") Signed-off-by: Toshi Kani Suggested-by: Jan Kara Cc: Jan Kara Cc: Dan Williams Cc: "Theodore Ts'o" Cc: Andreas Dilger Cc: Signed-off-by: Jan Kara --- fs/ext2/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index 7f7ee18fe179..e4bb9386c045 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c @@ -1448,6 +1448,7 @@ struct inode *ext2_iget (struct super_block *sb, unsigned long ino) } inode->i_blocks = le32_to_cpu(raw_inode->i_blocks); ei->i_flags = le32_to_cpu(raw_inode->i_flags); + ext2_set_inode_flags(inode); ei->i_faddr = le32_to_cpu(raw_inode->i_faddr); ei->i_frag_no = raw_inode->i_frag; ei->i_frag_size = raw_inode->i_fsize; @@ -1517,7 +1518,6 @@ struct inode *ext2_iget (struct super_block *sb, unsigned long ino) new_decode_dev(le32_to_cpu(raw_inode->i_block[1]))); } brelse (bh); - ext2_set_inode_flags(inode); unlock_new_inode(inode); return inode; From 336b08088d4da009108d4418e241ca95c9152237 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 19 Sep 2018 13:48:41 +0200 Subject: [PATCH 1116/1762] MAINTAINERS: Add Borislav to the x86 maintainers Borislav is effectivly maintaining parts of X86 already, make it official. Signed-off-by: Thomas Gleixner Acked-by: Ingo Molnar Acked-by: Borislav Petkov --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index 4ece30f15777..091e66b60cd2 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15913,6 +15913,7 @@ F: net/x25/ X86 ARCHITECTURE (32-BIT AND 64-BIT) M: Thomas Gleixner M: Ingo Molnar +M: Borislav Petkov R: "H. Peter Anvin" M: x86@kernel.org L: linux-kernel@vger.kernel.org From 5a4630aadb9a9525474e9ac92965829f990cb5c4 Mon Sep 17 00:00:00 2001 From: Joel Stanley Date: Mon, 17 Sep 2018 17:07:54 +0930 Subject: [PATCH 1117/1762] ftrace: Build with CPPFLAGS to get -Qunused-arguments When building to record the mcount locations the kernel uses KBUILD_CFLAGS but not KBUILD_CPPFLAGS. This means it lacks -Qunused-arguments when building with clang, resulting in a lot of noisy warnings. Signed-off-by: Joel Stanley Reviewed-by: Nick Desaulniers Signed-off-by: Masahiro Yamada --- scripts/Makefile.build | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 5a2d1c9578a0..54da4b070db3 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -219,7 +219,7 @@ else sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \ "$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \ "$(if $(CONFIG_64BIT),64,32)" \ - "$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CFLAGS)" \ + "$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)" \ "$(LD) $(KBUILD_LDFLAGS)" "$(NM)" "$(RM)" "$(MV)" \ "$(if $(part-of-module),1,0)" "$(@)"; recordmcount_source := $(srctree)/scripts/recordmcount.pl From ef8c4ed9db80261f397f0c0bf723684601ae3b52 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Mon, 17 Sep 2018 19:31:57 -0700 Subject: [PATCH 1118/1762] kbuild: allow to use GCC toolchain not in Clang search path When using a GCC cross toolchain which is not in a compiled in Clang search path, Clang reverts to the system assembler and linker. This leads to assembler or linker errors, depending on which tool is first used for a given architecture. It seems that Clang is not searching $PATH for a matching assembler or linker. Make sure that Clang picks up the correct assembler or linker by passing the cross compilers bin directory as search path. This allows to use Clang provided by distributions with GCC toolchains not in /usr/bin. Link: https://github.com/ClangBuiltLinux/linux/issues/78 Signed-off-by: Stefan Agner Reviewed-and-tested-by: Nick Desaulniers Signed-off-by: Masahiro Yamada --- Makefile | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index 4d5c883a98e5..d5de2db4b549 100644 --- a/Makefile +++ b/Makefile @@ -495,13 +495,15 @@ endif ifeq ($(cc-name),clang) ifneq ($(CROSS_COMPILE),) CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) -GCC_TOOLCHAIN := $(realpath $(dir $(shell which $(LD)))/..) +GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) +CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) +GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) endif ifneq ($(GCC_TOOLCHAIN),) CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) endif -KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) -KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) +KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) +KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) KBUILD_CFLAGS += $(call cc-option, -no-integrated-as) KBUILD_AFLAGS += $(call cc-option, -no-integrated-as) endif From 70513d58751d7c6c1a0133557b13089b9f2e3e66 Mon Sep 17 00:00:00 2001 From: Boris Ostrovsky Date: Thu, 12 Jul 2018 13:27:00 -0400 Subject: [PATCH 1119/1762] xen/x86/vpmu: Zero struct pt_regs before calling into sample handling code Otherwise we may leak kernel stack for events that sample user registers. Reported-by: Mark Rutland Reviewed-by: Juergen Gross Signed-off-by: Boris Ostrovsky Cc: stable@vger.kernel.org --- arch/x86/xen/pmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/xen/pmu.c b/arch/x86/xen/pmu.c index 7d00d4ad44d4..95997e6c0696 100644 --- a/arch/x86/xen/pmu.c +++ b/arch/x86/xen/pmu.c @@ -478,7 +478,7 @@ static void xen_convert_regs(const struct xen_pmu_regs *xen_regs, irqreturn_t xen_pmu_irq_handler(int irq, void *dev_id) { int err, ret = IRQ_NONE; - struct pt_regs regs; + struct pt_regs regs = {0}; const struct xen_pmu_data *xenpmu_data = get_xenpmu_data(); uint8_t xenpmu_flags = get_xenpmu_flags(); From d59f532480f5231bf62615a9287e05b78225fb05 Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Wed, 19 Sep 2018 15:42:33 +0200 Subject: [PATCH 1120/1762] xen: issue warning message when out of grant maptrack entries When a driver domain (e.g. dom0) is running out of maptrack entries it can't map any more foreign domain pages. Instead of silently stalling the affected domUs issue a rate limited warning in this case in order to make it easier to detect that situation. Signed-off-by: Juergen Gross Reviewed-by: Boris Ostrovsky Signed-off-by: Boris Ostrovsky --- drivers/xen/grant-table.c | 27 +++++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index 7bafa703a992..84575baceebc 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -1040,18 +1040,33 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops, return ret; for (i = 0; i < count; i++) { - /* Retry eagain maps */ - if (map_ops[i].status == GNTST_eagain) - gnttab_retry_eagain_gop(GNTTABOP_map_grant_ref, map_ops + i, - &map_ops[i].status, __func__); - - if (map_ops[i].status == GNTST_okay) { + switch (map_ops[i].status) { + case GNTST_okay: + { struct xen_page_foreign *foreign; SetPageForeign(pages[i]); foreign = xen_page_foreign(pages[i]); foreign->domid = map_ops[i].dom; foreign->gref = map_ops[i].ref; + break; + } + + case GNTST_no_device_space: + pr_warn_ratelimited("maptrack limit reached, can't map all guest pages\n"); + break; + + case GNTST_eagain: + /* Retry eagain maps */ + gnttab_retry_eagain_gop(GNTTABOP_map_grant_ref, + map_ops + i, + &map_ops[i].status, __func__); + /* Test status in next loop iteration. */ + i--; + break; + + default: + break; } } From 3a6818c771671c34b090244c92ab5aea6176d6da Mon Sep 17 00:00:00 2001 From: Rohit kumar Date: Wed, 19 Sep 2018 11:41:21 +0530 Subject: [PATCH 1121/1762] ASoC: q6afe: dt-bindings: Update input range for qcom,sd-lines Input to qcom,sd-lines should be between 0 and 3 instead of 1 to 4 as 0 corresponds to BIT(0) which is MI2S_SD0 line. Bit 1 to 3 corresponds to SD1 to SD3 lines respectively. Updated documentation for the same. Signed-off-by: Rohit kumar Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/qcom,q6afe.txt | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/qcom,q6afe.txt b/Documentation/devicetree/bindings/sound/qcom,q6afe.txt index a8179409c194..d74888b9f1bb 100644 --- a/Documentation/devicetree/bindings/sound/qcom,q6afe.txt +++ b/Documentation/devicetree/bindings/sound/qcom,q6afe.txt @@ -49,7 +49,7 @@ configuration of each dai. Must contain the following properties. Usage: required for mi2s interface Value type: Definition: Must be list of serial data lines used by this dai. - should be one or more of the 1-4 sd lines. + should be one or more of the 0-3 sd lines. - qcom,tdm-sync-mode: Usage: required for tdm interface @@ -137,42 +137,42 @@ q6afe@4 { prim-mi2s-rx@16 { reg = <16>; - qcom,sd-lines = <1 3>; + qcom,sd-lines = <0 2>; }; prim-mi2s-tx@17 { reg = <17>; - qcom,sd-lines = <2>; + qcom,sd-lines = <1>; }; sec-mi2s-rx@18 { reg = <18>; - qcom,sd-lines = <1 4>; + qcom,sd-lines = <0 3>; }; sec-mi2s-tx@19 { reg = <19>; - qcom,sd-lines = <2>; + qcom,sd-lines = <1>; }; tert-mi2s-rx@20 { reg = <20>; - qcom,sd-lines = <2 4>; + qcom,sd-lines = <1 3>; }; tert-mi2s-tx@21 { reg = <21>; - qcom,sd-lines = <1>; + qcom,sd-lines = <0>; }; quat-mi2s-rx@22 { reg = <22>; - qcom,sd-lines = <1>; + qcom,sd-lines = <0>; }; quat-mi2s-tx@23 { reg = <23>; - qcom,sd-lines = <2>; + qcom,sd-lines = <1>; }; }; }; From ee92efe41cf358f4b99e73509f2bfd4733609f26 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Mon, 17 Sep 2018 18:10:05 -0700 Subject: [PATCH 1122/1762] IB/srp: Avoid that sg_reset -d ${srp_device} triggers an infinite loop Use different loop variables for the inner and outer loop. This avoids that an infinite loop occurs if there are more RDMA channels than target->req_ring_size. Fixes: d92c0da71a35 ("IB/srp: Add multichannel support") Cc: Signed-off-by: Bart Van Assche Signed-off-by: Jason Gunthorpe --- drivers/infiniband/ulp/srp/ib_srp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 444d16520506..0b34e909505f 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2951,7 +2951,7 @@ static int srp_reset_device(struct scsi_cmnd *scmnd) { struct srp_target_port *target = host_to_target(scmnd->device->host); struct srp_rdma_ch *ch; - int i; + int i, j; u8 status; shost_printk(KERN_ERR, target->scsi_host, "SRP reset_device called\n"); @@ -2965,8 +2965,8 @@ static int srp_reset_device(struct scsi_cmnd *scmnd) for (i = 0; i < target->ch_count; i++) { ch = &target->ch[i]; - for (i = 0; i < target->req_ring_size; ++i) { - struct srp_request *req = &ch->req_ring[i]; + for (j = 0; j < target->req_ring_size; ++j) { + struct srp_request *req = &ch->req_ring[j]; srp_finish_req(ch, req, scmnd->device, DID_RESET << 16); } From 080220b687147fd9376878534aba7194f17f6ef5 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Tue, 18 Sep 2018 10:13:59 -0700 Subject: [PATCH 1123/1762] tools: bpf: fix license for a compat header file libc_compat.h is used by libbpf so make sure it's licensed under LGPL or BSD license. The license change should be OK, I'm the only author of the file. Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Acked-by: Yonghong Song Signed-off-by: Daniel Borkmann --- tools/include/tools/libc_compat.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/include/tools/libc_compat.h b/tools/include/tools/libc_compat.h index 664ced8cb1b0..e907ba6f15e5 100644 --- a/tools/include/tools/libc_compat.h +++ b/tools/include/tools/libc_compat.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0+ +// SPDX-License-Identifier: (LGPL-2.0+ OR BSD-2-Clause) /* Copyright (C) 2018 Netronome Systems, Inc. */ #ifndef __TOOLS_LIBC_COMPAT_H From d1766202779e81d0f2a94c4650a6ba31497d369d Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Thu, 2 Aug 2018 17:08:16 +0200 Subject: [PATCH 1124/1762] x86/kvm/lapic: always disable MMIO interface in x2APIC mode When VMX is used with flexpriority disabled (because of no support or if disabled with module parameter) MMIO interface to lAPIC is still available in x2APIC mode while it shouldn't be (kvm-unit-tests): PASS: apic_disable: Local apic enabled in x2APIC mode PASS: apic_disable: CPUID.1H:EDX.APIC[bit 9] is set FAIL: apic_disable: *0xfee00030: 50014 The issue appears because we basically do nothing while switching to x2APIC mode when APIC access page is not used. apic_mmio_{read,write} only check if lAPIC is disabled before proceeding to actual write. When APIC access is virtualized we correctly manipulate with VMX controls in vmx_set_virtual_apic_mode() and we don't get vmexits from memory writes in x2APIC mode so there's no issue. Disabling MMIO interface seems to be easy. The question is: what do we do with these reads and writes? If we add apic_x2apic_mode() check to apic_mmio_in_range() and return -EOPNOTSUPP these reads and writes will go to userspace. When lAPIC is in kernel, Qemu uses this interface to inject MSIs only (see kvm_apic_mem_write() in hw/i386/kvm/apic.c). This somehow works with disabled lAPIC but when we're in xAPIC mode we will get a real injected MSI from every write to lAPIC. Not good. The simplest solution seems to be to just ignore writes to the region and return ~0 for all reads when we're in x2APIC mode. This is what this patch does. However, this approach is inconsistent with what currently happens when flexpriority is enabled: we allocate APIC access page and create KVM memory region so in x2APIC modes all reads and writes go to this pre-allocated page which is, btw, the same for all vCPUs. Signed-off-by: Vitaly Kuznetsov Signed-off-by: Paolo Bonzini --- arch/x86/include/uapi/asm/kvm.h | 1 + arch/x86/kvm/lapic.c | 22 +++++++++++++++++++--- 2 files changed, 20 insertions(+), 3 deletions(-) diff --git a/arch/x86/include/uapi/asm/kvm.h b/arch/x86/include/uapi/asm/kvm.h index 86299efa804a..fd23d5778ea1 100644 --- a/arch/x86/include/uapi/asm/kvm.h +++ b/arch/x86/include/uapi/asm/kvm.h @@ -377,6 +377,7 @@ struct kvm_sync_regs { #define KVM_X86_QUIRK_LINT0_REENABLED (1 << 0) #define KVM_X86_QUIRK_CD_NW_CLEARED (1 << 1) +#define KVM_X86_QUIRK_LAPIC_MMIO_HOLE (1 << 2) #define KVM_STATE_NESTED_GUEST_MODE 0x00000001 #define KVM_STATE_NESTED_RUN_PENDING 0x00000002 diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 17c0472c5b34..fbb0e6df121b 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -1344,9 +1344,8 @@ EXPORT_SYMBOL_GPL(kvm_lapic_reg_read); static int apic_mmio_in_range(struct kvm_lapic *apic, gpa_t addr) { - return kvm_apic_hw_enabled(apic) && - addr >= apic->base_address && - addr < apic->base_address + LAPIC_MMIO_LENGTH; + return addr >= apic->base_address && + addr < apic->base_address + LAPIC_MMIO_LENGTH; } static int apic_mmio_read(struct kvm_vcpu *vcpu, struct kvm_io_device *this, @@ -1358,6 +1357,15 @@ static int apic_mmio_read(struct kvm_vcpu *vcpu, struct kvm_io_device *this, if (!apic_mmio_in_range(apic, address)) return -EOPNOTSUPP; + if (!kvm_apic_hw_enabled(apic) || apic_x2apic_mode(apic)) { + if (!kvm_check_has_quirk(vcpu->kvm, + KVM_X86_QUIRK_LAPIC_MMIO_HOLE)) + return -EOPNOTSUPP; + + memset(data, 0xff, len); + return 0; + } + kvm_lapic_reg_read(apic, offset, len, data); return 0; @@ -1917,6 +1925,14 @@ static int apic_mmio_write(struct kvm_vcpu *vcpu, struct kvm_io_device *this, if (!apic_mmio_in_range(apic, address)) return -EOPNOTSUPP; + if (!kvm_apic_hw_enabled(apic) || apic_x2apic_mode(apic)) { + if (!kvm_check_has_quirk(vcpu->kvm, + KVM_X86_QUIRK_LAPIC_MMIO_HOLE)) + return -EOPNOTSUPP; + + return 0; + } + /* * APIC register must be aligned on 128-bits boundary. * 32/64/128 bits registers must be accessed thru 32 bits. From d35b34a9a70edae7ef923f100e51b8b5ae9fe899 Mon Sep 17 00:00:00 2001 From: Junaid Shahid Date: Wed, 8 Aug 2018 17:45:24 -0700 Subject: [PATCH 1125/1762] kvm: mmu: Don't read PDPTEs when paging is not enabled kvm should not attempt to read guest PDPTEs when CR0.PG = 0 and CR4.PAE = 1. Signed-off-by: Junaid Shahid Signed-off-by: Paolo Bonzini --- arch/x86/kvm/x86.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 542f6315444d..5c870203737f 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -628,7 +628,7 @@ bool pdptrs_changed(struct kvm_vcpu *vcpu) gfn_t gfn; int r; - if (is_long_mode(vcpu) || !is_pae(vcpu)) + if (is_long_mode(vcpu) || !is_pae(vcpu) || !is_paging(vcpu)) return false; if (!test_bit(VCPU_EXREG_PDPTR, @@ -8177,7 +8177,7 @@ static int __set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) kvm_update_cpuid(vcpu); idx = srcu_read_lock(&vcpu->kvm->srcu); - if (!is_long_mode(vcpu) && is_pae(vcpu)) { + if (!is_long_mode(vcpu) && is_pae(vcpu) && is_paging(vcpu)) { load_pdptrs(vcpu, vcpu->arch.walk_mmu, kvm_read_cr3(vcpu)); mmu_reset_needed = 1; } From 83b20b28c670868bfb717be4fe1557c925a81657 Mon Sep 17 00:00:00 2001 From: Wei Yang Date: Fri, 7 Sep 2018 19:59:47 +0800 Subject: [PATCH 1126/1762] KVM: x86: don't reset root in kvm_mmu_setup() Here is the code path which shows kvm_mmu_setup() is invoked after kvm_mmu_create(). Since kvm_mmu_setup() is only invoked in this code path, this means the root_hpa and prev_roots are guaranteed to be invalid. And it is not necessary to reset it again. kvm_vm_ioctl_create_vcpu() kvm_arch_vcpu_create() vmx_create_vcpu() kvm_vcpu_init() kvm_arch_vcpu_init() kvm_mmu_create() kvm_arch_vcpu_setup() kvm_mmu_setup() kvm_init_mmu() This patch set reset_roots to false in kmv_mmu_setup(). Fixes: 50c28f21d045dde8c52548f8482d456b3f0956f5 Signed-off-by: Wei Yang Reviewed-by: Liran Alon Signed-off-by: Paolo Bonzini --- arch/x86/kvm/mmu.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index e24ea7067373..5402c53a079b 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -5417,7 +5417,12 @@ void kvm_mmu_setup(struct kvm_vcpu *vcpu) { MMU_WARN_ON(VALID_PAGE(vcpu->arch.mmu.root_hpa)); - kvm_init_mmu(vcpu, true); + /* + * kvm_mmu_setup() is called only on vCPU initialization. + * Therefore, no need to reset mmu roots as they are not yet + * initialized. + */ + kvm_init_mmu(vcpu, false); } static void kvm_mmu_invalidate_zap_pages_in_memslot(struct kvm *kvm, From 6bd317d3c865ebcddcb287a424093fe4758c40ef Mon Sep 17 00:00:00 2001 From: Lei Yang Date: Wed, 29 Aug 2018 15:04:08 +0800 Subject: [PATCH 1127/1762] kvm: selftests: use -pthread instead of -lpthread I run into the following error testing/selftests/kvm/dirty_log_test.c:285: undefined reference to `pthread_create' testing/selftests/kvm/dirty_log_test.c:297: undefined reference to `pthread_join' collect2: error: ld returned 1 exit status my gcc version is gcc version 4.8.4 "-pthread" would work everywhere Signed-off-by: Lei Yang Signed-off-by: Paolo Bonzini --- tools/testing/selftests/kvm/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile index 03b0f551bedf..48c970c90353 100644 --- a/tools/testing/selftests/kvm/Makefile +++ b/tools/testing/selftests/kvm/Makefile @@ -20,7 +20,7 @@ INSTALL_HDR_PATH = $(top_srcdir)/usr LINUX_HDR_PATH = $(INSTALL_HDR_PATH)/include/ LINUX_TOOL_INCLUDE = $(top_srcdir)tools/include CFLAGS += -O2 -g -std=gnu99 -I$(LINUX_TOOL_INCLUDE) -I$(LINUX_HDR_PATH) -Iinclude -I$( Date: Fri, 7 Sep 2018 05:45:02 +0000 Subject: [PATCH 1128/1762] KVM/MMU: Fix comment in walk_shadow_page_lockless_end() kvm_commit_zap_page() has been renamed to kvm_mmu_commit_zap_page() This patch is to fix the commit. Signed-off-by: Lan Tianyu Signed-off-by: Paolo Bonzini --- arch/x86/kvm/mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 5402c53a079b..d7e9bce6ff61 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -899,7 +899,7 @@ static void walk_shadow_page_lockless_end(struct kvm_vcpu *vcpu) { /* * Make sure the write to vcpu->mode is not reordered in front of - * reads to sptes. If it does, kvm_commit_zap_page() can see us + * reads to sptes. If it does, kvm_mmu_commit_zap_page() can see us * OUTSIDE_GUEST_MODE and proceed to free the shadow page table. */ smp_store_release(&vcpu->mode, OUTSIDE_GUEST_MODE); From a101c9d63ebb294144e596bfe9b4ae3156b1be96 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 30 Aug 2018 14:49:59 +0300 Subject: [PATCH 1129/1762] KVM: SVM: Switch to bitmap_zalloc() Switch to bitmap_zalloc() to show clearly what we are allocating. Besides that it returns pointer of bitmap type instead of opaque void *. Signed-off-by: Andy Shevchenko Signed-off-by: Paolo Bonzini --- arch/x86/kvm/svm.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 89c4c5aa15f1..c7f1c3fd782d 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1226,8 +1226,7 @@ static __init int sev_hardware_setup(void) min_sev_asid = cpuid_edx(0x8000001F); /* Initialize SEV ASID bitmap */ - sev_asid_bitmap = kcalloc(BITS_TO_LONGS(max_sev_asid), - sizeof(unsigned long), GFP_KERNEL); + sev_asid_bitmap = bitmap_zalloc(max_sev_asid, GFP_KERNEL); if (!sev_asid_bitmap) return 1; @@ -1405,7 +1404,7 @@ static __exit void svm_hardware_unsetup(void) int cpu; if (svm_sev_enabled()) - kfree(sev_asid_bitmap); + bitmap_free(sev_asid_bitmap); for_each_possible_cpu(cpu) svm_cpu_uninit(cpu); From 4c008127e4716d246b44b403f8a65ae9744d32c4 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Mon, 27 Aug 2018 15:21:10 -0700 Subject: [PATCH 1130/1762] KVM: VMX: immediately mark preemption timer expired only for zero value A VMX preemption timer value of '0' at the time of VMEnter is architecturally guaranteed to cause a VMExit prior to the CPU executing any instructions in the guest. This architectural definition is in place to ensure that a previously expired timer is correctly recognized by the CPU as it is possible for the timer to reach zero and not trigger a VMexit due to a higher priority VMExit being signalled instead, e.g. a pending #DB that morphs into a VMExit. Whether by design or coincidence, commit f4124500c2c1 ("KVM: nVMX: Fully emulate preemption timer") special cased timer values of '0' and '1' to ensure prompt delivery of the VMExit. Unlike '0', a timer value of '1' has no has no architectural guarantees regarding when it is delivered. Modify the timer emulation to trigger immediate VMExit if and only if the timer value is '0', and document precisely why '0' is special. Do this even if calibration of the virtual TSC failed, i.e. VMExit will occur immediately regardless of the frequency of the timer. Making only '0' a special case gives KVM leeway to be more aggressive in ensuring the VMExit is injected prior to executing instructions in the nested guest, and also eliminates any ambiguity as to why '1' is a special case, e.g. why wasn't the threshold for a "short timeout" set to 10, 100, 1000, etc... Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 533a327372c8..4655d6dd6759 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -11427,16 +11427,18 @@ static void vmx_start_preemption_timer(struct kvm_vcpu *vcpu) u64 preemption_timeout = get_vmcs12(vcpu)->vmx_preemption_timer_value; struct vcpu_vmx *vmx = to_vmx(vcpu); - if (vcpu->arch.virtual_tsc_khz == 0) - return; - - /* Make sure short timeouts reliably trigger an immediate vmexit. - * hrtimer_start does not guarantee this. */ - if (preemption_timeout <= 1) { + /* + * A timer value of zero is architecturally guaranteed to cause + * a VMExit prior to executing any instructions in the guest. + */ + if (preemption_timeout == 0) { vmx_preemption_timer_fn(&vmx->nested.preemption_timer); return; } + if (vcpu->arch.virtual_tsc_khz == 0) + return; + preemption_timeout <<= VMX_MISC_EMULATED_PREEMPTION_TIMER_RATE; preemption_timeout *= 1000000; do_div(preemption_timeout, vcpu->arch.virtual_tsc_khz); From f459a707ed313f110e4939d634317edcf9e96774 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Mon, 27 Aug 2018 15:21:11 -0700 Subject: [PATCH 1131/1762] KVM: VMX: modify preemption timer bit only when arming timer Provide a singular location where the VMX preemption timer bit is set/cleared so that future usages of the preemption timer can ensure the VMCS bit is up-to-date without having to modify unrelated code paths. For example, the preemption timer can be used to force an immediate VMExit. Cache the status of the timer to avoid redundant VMREAD and VMWRITE, e.g. if the timer stays armed across multiple VMEnters/VMExits. Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 61 ++++++++++++++++++++++++---------------------- 1 file changed, 32 insertions(+), 29 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 4655d6dd6759..62670b2f6d48 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -397,6 +397,7 @@ struct loaded_vmcs { int cpu; bool launched; bool nmi_known_unmasked; + bool hv_timer_armed; /* Support for vnmi-less CPUs */ int soft_vnmi_blocked; ktime_t entry_time; @@ -10595,24 +10596,38 @@ static void atomic_switch_perf_msrs(struct vcpu_vmx *vmx) msrs[i].host, false); } -static void vmx_arm_hv_timer(struct kvm_vcpu *vcpu) +static void vmx_arm_hv_timer(struct vcpu_vmx *vmx, u32 val) +{ + vmcs_write32(VMX_PREEMPTION_TIMER_VALUE, val); + if (!vmx->loaded_vmcs->hv_timer_armed) + vmcs_set_bits(PIN_BASED_VM_EXEC_CONTROL, + PIN_BASED_VMX_PREEMPTION_TIMER); + vmx->loaded_vmcs->hv_timer_armed = true; +} + +static void vmx_update_hv_timer(struct kvm_vcpu *vcpu) { struct vcpu_vmx *vmx = to_vmx(vcpu); u64 tscl; u32 delta_tsc; - if (vmx->hv_deadline_tsc == -1) + if (vmx->hv_deadline_tsc != -1) { + tscl = rdtsc(); + if (vmx->hv_deadline_tsc > tscl) + /* set_hv_timer ensures the delta fits in 32-bits */ + delta_tsc = (u32)((vmx->hv_deadline_tsc - tscl) >> + cpu_preemption_timer_multi); + else + delta_tsc = 0; + + vmx_arm_hv_timer(vmx, delta_tsc); return; + } - tscl = rdtsc(); - if (vmx->hv_deadline_tsc > tscl) - /* sure to be 32 bit only because checked on set_hv_timer */ - delta_tsc = (u32)((vmx->hv_deadline_tsc - tscl) >> - cpu_preemption_timer_multi); - else - delta_tsc = 0; - - vmcs_write32(VMX_PREEMPTION_TIMER_VALUE, delta_tsc); + if (vmx->loaded_vmcs->hv_timer_armed) + vmcs_clear_bits(PIN_BASED_VM_EXEC_CONTROL, + PIN_BASED_VMX_PREEMPTION_TIMER); + vmx->loaded_vmcs->hv_timer_armed = false; } static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu) @@ -10672,7 +10687,7 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu) atomic_switch_perf_msrs(vmx); - vmx_arm_hv_timer(vcpu); + vmx_update_hv_timer(vcpu); /* * If this vCPU has touched SPEC_CTRL, restore the guest's value if @@ -12078,11 +12093,10 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12, exec_control = vmcs12->pin_based_vm_exec_control; - /* Preemption timer setting is only taken from vmcs01. */ - exec_control &= ~PIN_BASED_VMX_PREEMPTION_TIMER; + /* Preemption timer setting is computed directly in vmx_vcpu_run. */ exec_control |= vmcs_config.pin_based_exec_ctrl; - if (vmx->hv_deadline_tsc == -1) - exec_control &= ~PIN_BASED_VMX_PREEMPTION_TIMER; + exec_control &= ~PIN_BASED_VMX_PREEMPTION_TIMER; + vmx->loaded_vmcs->hv_timer_armed = false; /* Posted interrupts setting is only taken from vmcs12. */ if (nested_cpu_has_posted_intr(vmcs12)) { @@ -13255,12 +13269,7 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason, vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, vmx->msr_autoload.host.nr); vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, vmx->msr_autoload.guest.nr); vmcs_write64(TSC_OFFSET, vcpu->arch.tsc_offset); - if (vmx->hv_deadline_tsc == -1) - vmcs_clear_bits(PIN_BASED_VM_EXEC_CONTROL, - PIN_BASED_VMX_PREEMPTION_TIMER); - else - vmcs_set_bits(PIN_BASED_VM_EXEC_CONTROL, - PIN_BASED_VMX_PREEMPTION_TIMER); + if (kvm_has_tsc_control) decache_tsc_multiplier(vmx); @@ -13464,18 +13473,12 @@ static int vmx_set_hv_timer(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc) return -ERANGE; vmx->hv_deadline_tsc = tscl + delta_tsc; - vmcs_set_bits(PIN_BASED_VM_EXEC_CONTROL, - PIN_BASED_VMX_PREEMPTION_TIMER); - return delta_tsc == 0; } static void vmx_cancel_hv_timer(struct kvm_vcpu *vcpu) { - struct vcpu_vmx *vmx = to_vmx(vcpu); - vmx->hv_deadline_tsc = -1; - vmcs_clear_bits(PIN_BASED_VM_EXEC_CONTROL, - PIN_BASED_VMX_PREEMPTION_TIMER); + to_vmx(vcpu)->hv_deadline_tsc = -1; } #endif From d264ee0c2ed20c6a426663590d4fc7a36cb6abd7 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Mon, 27 Aug 2018 15:21:12 -0700 Subject: [PATCH 1132/1762] KVM: VMX: use preemption timer to force immediate VMExit A VMX preemption timer value of '0' is guaranteed to cause a VMExit prior to the CPU executing any instructions in the guest. Use the preemption timer (if it's supported) to trigger immediate VMExit in place of the current method of sending a self-IPI. This ensures that pending VMExit injection to L1 occurs prior to executing any instructions in the guest (regardless of nesting level). When deferring VMExit injection, KVM generates an immediate VMExit from the (possibly nested) guest by sending itself an IPI. Because hardware interrupts are blocked prior to VMEnter and are unblocked (in hardware) after VMEnter, this results in taking a VMExit(INTR) before any guest instruction is executed. But, as this approach relies on the IPI being received before VMEnter executes, it only works as intended when KVM is running as L0. Because there are no architectural guarantees regarding when IPIs are delivered, when running nested the INTR may "arrive" long after L2 is running e.g. L0 KVM doesn't force an immediate switch to L1 to deliver an INTR. For the most part, this unintended delay is not an issue since the events being injected to L1 also do not have architectural guarantees regarding their timing. The notable exception is the VMX preemption timer[1], which is architecturally guaranteed to cause a VMExit prior to executing any instructions in the guest if the timer value is '0' at VMEnter. Specifically, the delay in injecting the VMExit causes the preemption timer KVM unit test to fail when run in a nested guest. Note: this approach is viable even on CPUs with a broken preemption timer, as broken in this context only means the timer counts at the wrong rate. There are no known errata affecting timer value of '0'. [1] I/O SMIs also have guarantees on when they arrive, but I have no idea if/how those are emulated in KVM. Signed-off-by: Sean Christopherson [Use a hook for SVM instead of leaving the default in x86.c - Paolo] Signed-off-by: Paolo Bonzini --- arch/x86/include/asm/kvm_host.h | 2 ++ arch/x86/kvm/svm.c | 2 ++ arch/x86/kvm/vmx.c | 21 ++++++++++++++++++++- arch/x86/kvm/x86.c | 8 +++++++- 4 files changed, 31 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 8e90488c3d56..bffb25b50425 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1055,6 +1055,7 @@ struct kvm_x86_ops { bool (*umip_emulated)(void); int (*check_nested_events)(struct kvm_vcpu *vcpu, bool external_intr); + void (*request_immediate_exit)(struct kvm_vcpu *vcpu); void (*sched_in)(struct kvm_vcpu *kvm, int cpu); @@ -1482,6 +1483,7 @@ extern bool kvm_find_async_pf_gfn(struct kvm_vcpu *vcpu, gfn_t gfn); int kvm_skip_emulated_instruction(struct kvm_vcpu *vcpu); int kvm_complete_insn_gp(struct kvm_vcpu *vcpu, int err); +void __kvm_request_immediate_exit(struct kvm_vcpu *vcpu); int kvm_is_in_guest(void); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index c7f1c3fd782d..d96092b35936 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -7148,6 +7148,8 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = { .check_intercept = svm_check_intercept, .handle_external_intr = svm_handle_external_intr, + .request_immediate_exit = __kvm_request_immediate_exit, + .sched_in = svm_sched_in, .pmu_ops = &amd_pmu_ops, diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 62670b2f6d48..a4a1585f47f1 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1020,6 +1020,8 @@ struct vcpu_vmx { int ple_window; bool ple_window_dirty; + bool req_immediate_exit; + /* Support for PML */ #define PML_ENTITY_NUM 512 struct page *pml_pg; @@ -2865,6 +2867,8 @@ static void vmx_prepare_switch_to_guest(struct kvm_vcpu *vcpu) u16 fs_sel, gs_sel; int i; + vmx->req_immediate_exit = false; + if (vmx->loaded_cpu_state) return; @@ -7967,6 +7971,9 @@ static __init int hardware_setup(void) kvm_x86_ops->enable_log_dirty_pt_masked = NULL; } + if (!cpu_has_vmx_preemption_timer()) + kvm_x86_ops->request_immediate_exit = __kvm_request_immediate_exit; + if (cpu_has_vmx_preemption_timer() && enable_preemption_timer) { u64 vmx_msr; @@ -9209,7 +9216,8 @@ static int handle_pml_full(struct kvm_vcpu *vcpu) static int handle_preemption_timer(struct kvm_vcpu *vcpu) { - kvm_lapic_expired_hv_timer(vcpu); + if (!to_vmx(vcpu)->req_immediate_exit) + kvm_lapic_expired_hv_timer(vcpu); return 1; } @@ -10611,6 +10619,11 @@ static void vmx_update_hv_timer(struct kvm_vcpu *vcpu) u64 tscl; u32 delta_tsc; + if (vmx->req_immediate_exit) { + vmx_arm_hv_timer(vmx, 0); + return; + } + if (vmx->hv_deadline_tsc != -1) { tscl = rdtsc(); if (vmx->hv_deadline_tsc > tscl) @@ -12879,6 +12892,11 @@ static int vmx_check_nested_events(struct kvm_vcpu *vcpu, bool external_intr) return 0; } +static void vmx_request_immediate_exit(struct kvm_vcpu *vcpu) +{ + to_vmx(vcpu)->req_immediate_exit = true; +} + static u32 vmx_get_preemption_timer_value(struct kvm_vcpu *vcpu) { ktime_t remaining = @@ -14135,6 +14153,7 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = { .umip_emulated = vmx_umip_emulated, .check_nested_events = vmx_check_nested_events, + .request_immediate_exit = vmx_request_immediate_exit, .sched_in = vmx_sched_in, diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 5c870203737f..9d0fda9056de 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -7361,6 +7361,12 @@ void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu *vcpu) } EXPORT_SYMBOL_GPL(kvm_vcpu_reload_apic_access_page); +void __kvm_request_immediate_exit(struct kvm_vcpu *vcpu) +{ + smp_send_reschedule(vcpu->cpu); +} +EXPORT_SYMBOL_GPL(__kvm_request_immediate_exit); + /* * Returns 1 to let vcpu_run() continue the guest execution loop without * exiting to the userspace. Otherwise, the value will be returned to the @@ -7565,7 +7571,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) if (req_immediate_exit) { kvm_make_request(KVM_REQ_EVENT, vcpu); - smp_send_reschedule(vcpu->cpu); + kvm_x86_ops->request_immediate_exit(vcpu); } trace_kvm_entry(vcpu->vcpu_id); From a1efa9b70097a7ebb7c0a10bb72648776771b281 Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Mon, 27 Aug 2018 18:48:57 +0200 Subject: [PATCH 1133/1762] x86/hyper-v: rename ipi_arg_{ex,non_ex} structures These structures are going to be used from KVM code so let's make their names reflect their Hyper-V origin. Signed-off-by: Vitaly Kuznetsov Reviewed-by: Roman Kagan Acked-by: K. Y. Srinivasan Signed-off-by: Paolo Bonzini --- arch/x86/hyperv/hv_apic.c | 8 ++++---- arch/x86/include/asm/hyperv-tlfs.h | 16 +++++++++------- 2 files changed, 13 insertions(+), 11 deletions(-) diff --git a/arch/x86/hyperv/hv_apic.c b/arch/x86/hyperv/hv_apic.c index 5b0f613428c2..2c43e3055948 100644 --- a/arch/x86/hyperv/hv_apic.c +++ b/arch/x86/hyperv/hv_apic.c @@ -95,8 +95,8 @@ static void hv_apic_eoi_write(u32 reg, u32 val) */ static bool __send_ipi_mask_ex(const struct cpumask *mask, int vector) { - struct ipi_arg_ex **arg; - struct ipi_arg_ex *ipi_arg; + struct hv_send_ipi_ex **arg; + struct hv_send_ipi_ex *ipi_arg; unsigned long flags; int nr_bank = 0; int ret = 1; @@ -105,7 +105,7 @@ static bool __send_ipi_mask_ex(const struct cpumask *mask, int vector) return false; local_irq_save(flags); - arg = (struct ipi_arg_ex **)this_cpu_ptr(hyperv_pcpu_input_arg); + arg = (struct hv_send_ipi_ex **)this_cpu_ptr(hyperv_pcpu_input_arg); ipi_arg = *arg; if (unlikely(!ipi_arg)) @@ -135,7 +135,7 @@ ipi_mask_ex_done: static bool __send_ipi_mask(const struct cpumask *mask, int vector) { int cur_cpu, vcpu; - struct ipi_arg_non_ex ipi_arg; + struct hv_send_ipi ipi_arg; int ret = 1; trace_hyperv_send_ipi_mask(mask, vector); diff --git a/arch/x86/include/asm/hyperv-tlfs.h b/arch/x86/include/asm/hyperv-tlfs.h index e977b6b3a538..00e01d215f74 100644 --- a/arch/x86/include/asm/hyperv-tlfs.h +++ b/arch/x86/include/asm/hyperv-tlfs.h @@ -726,19 +726,21 @@ struct hv_enlightened_vmcs { #define HV_STIMER_AUTOENABLE (1ULL << 3) #define HV_STIMER_SINT(config) (__u8)(((config) >> 16) & 0x0F) -struct ipi_arg_non_ex { - u32 vector; - u32 reserved; - u64 cpu_mask; -}; - struct hv_vpset { u64 format; u64 valid_bank_mask; u64 bank_contents[]; }; -struct ipi_arg_ex { +/* HvCallSendSyntheticClusterIpi hypercall */ +struct hv_send_ipi { + u32 vector; + u32 reserved; + u64 cpu_mask; +}; + +/* HvCallSendSyntheticClusterIpiEx hypercall */ +struct hv_send_ipi_ex { u32 vector; u32 reserved; struct hv_vpset vp_set; From 822f312d47f0200dc0999c9f006fe94aa43bd0bd Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Wed, 12 Sep 2018 15:33:45 +0200 Subject: [PATCH 1134/1762] kvm: x86: make kvm_{load|put}_guest_fpu() static The functions kvm_load_guest_fpu() kvm_put_guest_fpu() are only used locally, make them static. This requires also that both functions are moved because they are used before their implementation. Those functions were exported (via EXPORT_SYMBOL) before commit e5bb40251a920 ("KVM: Drop kvm_{load,put}_guest_fpu() exports"). Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Paolo Bonzini --- arch/x86/kvm/x86.c | 46 ++++++++++++++++++++-------------------- include/linux/kvm_host.h | 2 -- 2 files changed, 23 insertions(+), 25 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 9d0fda9056de..6f4789398876 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -7835,6 +7835,29 @@ static int complete_emulated_mmio(struct kvm_vcpu *vcpu) return 0; } +/* Swap (qemu) user FPU context for the guest FPU context. */ +static void kvm_load_guest_fpu(struct kvm_vcpu *vcpu) +{ + preempt_disable(); + copy_fpregs_to_fpstate(&vcpu->arch.user_fpu); + /* PKRU is separately restored in kvm_x86_ops->run. */ + __copy_kernel_to_fpregs(&vcpu->arch.guest_fpu.state, + ~XFEATURE_MASK_PKRU); + preempt_enable(); + trace_kvm_fpu(1); +} + +/* When vcpu_run ends, restore user space FPU context. */ +static void kvm_put_guest_fpu(struct kvm_vcpu *vcpu) +{ + preempt_disable(); + copy_fpregs_to_fpstate(&vcpu->arch.guest_fpu); + copy_kernel_to_fpregs(&vcpu->arch.user_fpu.state); + preempt_enable(); + ++vcpu->stat.fpu_reload; + trace_kvm_fpu(0); +} + int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) { int r; @@ -8412,29 +8435,6 @@ static void fx_init(struct kvm_vcpu *vcpu) vcpu->arch.cr0 |= X86_CR0_ET; } -/* Swap (qemu) user FPU context for the guest FPU context. */ -void kvm_load_guest_fpu(struct kvm_vcpu *vcpu) -{ - preempt_disable(); - copy_fpregs_to_fpstate(&vcpu->arch.user_fpu); - /* PKRU is separately restored in kvm_x86_ops->run. */ - __copy_kernel_to_fpregs(&vcpu->arch.guest_fpu.state, - ~XFEATURE_MASK_PKRU); - preempt_enable(); - trace_kvm_fpu(1); -} - -/* When vcpu_run ends, restore user space FPU context. */ -void kvm_put_guest_fpu(struct kvm_vcpu *vcpu) -{ - preempt_disable(); - copy_fpregs_to_fpstate(&vcpu->arch.guest_fpu); - copy_kernel_to_fpregs(&vcpu->arch.user_fpu.state); - preempt_enable(); - ++vcpu->stat.fpu_reload; - trace_kvm_fpu(0); -} - void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu) { void *wbinvd_dirty_mask = vcpu->arch.wbinvd_dirty_mask; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 0205aee44ded..c926698040e0 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -733,8 +733,6 @@ bool kvm_vcpu_wake_up(struct kvm_vcpu *vcpu); void kvm_vcpu_kick(struct kvm_vcpu *vcpu); int kvm_vcpu_yield_to(struct kvm_vcpu *target); void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu, bool usermode_vcpu_not_eligible); -void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); -void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); void kvm_flush_remote_tlbs(struct kvm *kvm); void kvm_reload_remote_mmus(struct kvm *kvm); From 5bea5123cbf08f990a1aee8f08c643a272e06a0f Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 18 Sep 2018 15:19:17 +0200 Subject: [PATCH 1135/1762] KVM: VMX: check nested state and CR4.VMXE against SMM VMX cannot be enabled under SMM, check it when CR4 is set and when nested virtualization state is restored. This should fix some WARNs reported by syzkaller, mostly around alloc_shadow_vmcs. Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index a4a1585f47f1..16e63a92992f 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -5398,9 +5398,10 @@ static int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4) * To use VMXON (and later other VMX instructions), a guest * must first be able to turn on cr4.VMXE (see handle_vmon()). * So basically the check on whether to allow nested VMX - * is here. + * is here. We operate under the default treatment of SMM, + * so VMX cannot be enabled under SMM. */ - if (!nested_vmx_allowed(vcpu)) + if (!nested_vmx_allowed(vcpu) || is_smm(vcpu)) return 1; } @@ -13977,6 +13978,14 @@ static int vmx_set_nested_state(struct kvm_vcpu *vcpu, ~(KVM_STATE_NESTED_SMM_GUEST_MODE | KVM_STATE_NESTED_SMM_VMXON)) return -EINVAL; + /* + * SMM temporarily disables VMX, so we cannot be in guest mode, + * nor can VMLAUNCH/VMRESUME be pending. Outside SMM, SMM flags + * must be zero. + */ + if (is_smm(vcpu) ? kvm_state->flags : kvm_state->vmx.smm.flags) + return -EINVAL; + if ((kvm_state->vmx.smm.flags & KVM_STATE_NESTED_SMM_GUEST_MODE) && !(kvm_state->vmx.smm.flags & KVM_STATE_NESTED_SMM_VMXON)) return -EINVAL; From e6c67d8cf1173b229f0c4343d1cc7925eca11c11 Mon Sep 17 00:00:00 2001 From: Liran Alon Date: Tue, 4 Sep 2018 10:56:52 +0300 Subject: [PATCH 1136/1762] KVM: nVMX: Wake blocked vCPU in guest-mode if pending interrupt in virtual APICv In case L1 do not intercept L2 HLT or enter L2 in HLT activity-state, it is possible for a vCPU to be blocked while it is in guest-mode. According to Intel SDM 26.6.5 Interrupt-Window Exiting and Virtual-Interrupt Delivery: "These events wake the logical processor if it just entered the HLT state because of a VM entry". Therefore, if L1 enters L2 in HLT activity-state and L2 has a pending deliverable interrupt in vmcs12->guest_intr_status.RVI, then the vCPU should be waken from the HLT state and injected with the interrupt. In addition, if while the vCPU is blocked (while it is in guest-mode), it receives a nested posted-interrupt, then the vCPU should also be waken and injected with the posted interrupt. To handle these cases, this patch enhances kvm_vcpu_has_events() to also check if there is a pending interrupt in L2 virtual APICv provided by L1. That is, it evaluates if there is a pending virtual interrupt for L2 by checking RVI[7:4] > VPPR[7:4] as specified in Intel SDM 29.2.1 Evaluation of Pending Interrupts. Note that this also handles the case of nested posted-interrupt by the fact RVI is updated in vmx_complete_nested_posted_interrupt() which is called from kvm_vcpu_check_block() -> kvm_arch_vcpu_runnable() -> kvm_vcpu_running() -> vmx_check_nested_events() -> vmx_complete_nested_posted_interrupt(). Reviewed-by: Nikita Leshenko Reviewed-by: Darren Kenny Signed-off-by: Liran Alon Signed-off-by: Paolo Bonzini --- arch/x86/include/asm/kvm_host.h | 1 + arch/x86/kvm/vmx.c | 22 ++++++++++++++++++++++ arch/x86/kvm/x86.c | 10 +++++++++- 3 files changed, 32 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index bffb25b50425..af63c2ca1616 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1022,6 +1022,7 @@ struct kvm_x86_ops { void (*refresh_apicv_exec_ctrl)(struct kvm_vcpu *vcpu); void (*hwapic_irr_update)(struct kvm_vcpu *vcpu, int max_irr); void (*hwapic_isr_update)(struct kvm_vcpu *vcpu, int isr); + bool (*guest_apic_has_interrupt)(struct kvm_vcpu *vcpu); void (*load_eoi_exitmap)(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap); void (*set_virtual_apic_mode)(struct kvm_vcpu *vcpu); void (*set_apic_access_page_addr)(struct kvm_vcpu *vcpu, hpa_t hpa); diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 16e63a92992f..98b1203e8823 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -6189,6 +6189,27 @@ static void vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu) nested_mark_vmcs12_pages_dirty(vcpu); } +static bool vmx_guest_apic_has_interrupt(struct kvm_vcpu *vcpu) +{ + struct vcpu_vmx *vmx = to_vmx(vcpu); + void *vapic_page; + u32 vppr; + int rvi; + + if (WARN_ON_ONCE(!is_guest_mode(vcpu)) || + !nested_cpu_has_vid(get_vmcs12(vcpu)) || + WARN_ON_ONCE(!vmx->nested.virtual_apic_page)) + return false; + + rvi = vmcs_read16(GUEST_INTR_STATUS) & 0xff; + + vapic_page = kmap(vmx->nested.virtual_apic_page); + vppr = *((u32 *)(vapic_page + APIC_PROCPRI)); + kunmap(vmx->nested.virtual_apic_page); + + return ((rvi & 0xf0) > (vppr & 0xf0)); +} + static inline bool kvm_vcpu_trigger_posted_interrupt(struct kvm_vcpu *vcpu, bool nested) { @@ -14129,6 +14150,7 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = { .apicv_post_state_restore = vmx_apicv_post_state_restore, .hwapic_irr_update = vmx_hwapic_irr_update, .hwapic_isr_update = vmx_hwapic_isr_update, + .guest_apic_has_interrupt = vmx_guest_apic_has_interrupt, .sync_pir_to_irr = vmx_sync_pir_to_irr, .deliver_posted_interrupt = vmx_deliver_posted_interrupt, diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 6f4789398876..5fea53cdc583 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -9206,6 +9206,13 @@ void kvm_arch_flush_shadow_memslot(struct kvm *kvm, kvm_page_track_flush_slot(kvm, slot); } +static inline bool kvm_guest_apic_has_interrupt(struct kvm_vcpu *vcpu) +{ + return (is_guest_mode(vcpu) && + kvm_x86_ops->guest_apic_has_interrupt && + kvm_x86_ops->guest_apic_has_interrupt(vcpu)); +} + static inline bool kvm_vcpu_has_events(struct kvm_vcpu *vcpu) { if (!list_empty_careful(&vcpu->async_pf.done)) @@ -9230,7 +9237,8 @@ static inline bool kvm_vcpu_has_events(struct kvm_vcpu *vcpu) return true; if (kvm_arch_interrupt_allowed(vcpu) && - kvm_cpu_has_interrupt(vcpu)) + (kvm_cpu_has_interrupt(vcpu) || + kvm_guest_apic_has_interrupt(vcpu))) return true; if (kvm_hv_has_stimer_pending(vcpu)) From 6de84e581c083c4357b45c31b7ef71335725d850 Mon Sep 17 00:00:00 2001 From: Krish Sadhukhan Date: Thu, 23 Aug 2018 20:03:03 -0400 Subject: [PATCH 1137/1762] nVMX x86: check posted-interrupt descriptor addresss on vmentry of L2 According to section "Checks on VMX Controls" in Intel SDM vol 3C, the following check needs to be enforced on vmentry of L2 guests: - Bits 5:0 of the posted-interrupt descriptor address are all 0. - The posted-interrupt descriptor address does not set any bits beyond the processor's physical-address width. Signed-off-by: Krish Sadhukhan Reviewed-by: Mark Kanda Reviewed-by: Liran Alon Reviewed-by: Darren Kenny Reviewed-by: Karl Heubaum Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 98b1203e8823..581bdbd9844b 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -11698,11 +11698,15 @@ static int nested_vmx_check_apicv_controls(struct kvm_vcpu *vcpu, * bits 15:8 should be zero in posted_intr_nv, * the descriptor address has been already checked * in nested_get_vmcs12_pages. + * + * bits 5:0 of posted_intr_desc_addr should be zero. */ if (nested_cpu_has_posted_intr(vmcs12) && (!nested_cpu_has_vid(vmcs12) || !nested_exit_intr_ack_set(vcpu) || - vmcs12->posted_intr_nv & 0xff00)) + (vmcs12->posted_intr_nv & 0xff00) || + (vmcs12->posted_intr_desc_addr & 0x3f) || + (!page_address_valid(vcpu, vmcs12->posted_intr_desc_addr)))) return -EINVAL; /* tpr shadow is needed by all apicv features. */ From ba8e23db59dc07e5de74fd7bd310e297d3e4ba54 Mon Sep 17 00:00:00 2001 From: Krish Sadhukhan Date: Tue, 4 Sep 2018 14:42:58 -0400 Subject: [PATCH 1138/1762] nVMX x86: Check VPID value on vmentry of L2 guests According to section "Checks on VMX Controls" in Intel SDM vol 3C, the following check needs to be enforced on vmentry of L2 guests: If the 'enable VPID' VM-execution control is 1, the value of the of the VPID VM-execution control field must not be 0000H. Signed-off-by: Krish Sadhukhan Reviewed-by: Mark Kanda Reviewed-by: Liran Alon Reviewed-by: Jim Mattson Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 581bdbd9844b..06412ba46aa3 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -12373,6 +12373,9 @@ static int check_vmentry_prereqs(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12) vmcs12->guest_activity_state != GUEST_ACTIVITY_HLT) return VMXERR_ENTRY_INVALID_CONTROL_FIELD; + if (nested_cpu_has_vpid(vmcs12) && !vmcs12->virtual_processor_id) + return VMXERR_ENTRY_INVALID_CONTROL_FIELD; + if (nested_vmx_check_io_bitmap_controls(vcpu, vmcs12)) return VMXERR_ENTRY_INVALID_CONTROL_FIELD; From d84f1cff9028c00ee870f0293b0c7a3866071dfa Mon Sep 17 00:00:00 2001 From: Drew Schmitt Date: Mon, 20 Aug 2018 10:32:14 -0700 Subject: [PATCH 1139/1762] KVM: x86: Turbo bits in MSR_PLATFORM_INFO Allow userspace to set turbo bits in MSR_PLATFORM_INFO. Previously, only the CPUID faulting bit was settable. But now any bit in MSR_PLATFORM_INFO would be settable. This can be used, for example, to convey frequency information about the platform on which the guest is running. Signed-off-by: Drew Schmitt Signed-off-by: Paolo Bonzini --- arch/x86/kvm/x86.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 5fea53cdc583..e127703e277e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2537,7 +2537,6 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) break; case MSR_PLATFORM_INFO: if (!msr_info->host_initiated || - data & ~MSR_PLATFORM_INFO_CPUID_FAULT || (!(data & MSR_PLATFORM_INFO_CPUID_FAULT) && cpuid_fault_enabled(vcpu))) return 1; From 6fbbde9a1969dfb476467ebf69a475095ef3fd4d Mon Sep 17 00:00:00 2001 From: Drew Schmitt Date: Mon, 20 Aug 2018 10:32:15 -0700 Subject: [PATCH 1140/1762] KVM: x86: Control guest reads of MSR_PLATFORM_INFO Add KVM_CAP_MSR_PLATFORM_INFO so that userspace can disable guest access to reads of MSR_PLATFORM_INFO. Disabling access to reads of this MSR gives userspace the control to "expose" this platform-dependent information to guests in a clear way. As it exists today, guests that read this MSR would get unpopulated information if userspace hadn't already set it (and prior to this patch series, only the CPUID faulting information could have been populated). This existing interface could be confusing if guests don't handle the potential for incorrect/incomplete information gracefully (e.g. zero reported for base frequency). Signed-off-by: Drew Schmitt Signed-off-by: Paolo Bonzini --- Documentation/virtual/kvm/api.txt | 9 +++++++++ arch/x86/include/asm/kvm_host.h | 2 ++ arch/x86/kvm/x86.c | 10 ++++++++++ include/uapi/linux/kvm.h | 1 + 4 files changed, 22 insertions(+) diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 8d8a372c8340..647f94128a85 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -4522,6 +4522,15 @@ hpage module parameter is not set to 1, -EINVAL is returned. While it is generally possible to create a huge page backed VM without this capability, the VM will not be able to run. +7.14 KVM_CAP_MSR_PLATFORM_INFO + +Architectures: x86 +Parameters: args[0] whether feature should be enabled or not + +With this capability, a guest may read the MSR_PLATFORM_INFO MSR. Otherwise, +a #GP would be raised when the guest tries to access. Currently, this +capability does not enable write permissions of this MSR for the guest. + 8. Other capabilities. ---------------------- diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index af63c2ca1616..09b2e3e2cf1b 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -869,6 +869,8 @@ struct kvm_arch { bool x2apic_format; bool x2apic_broadcast_quirk_disabled; + + bool guest_can_read_msr_platform_info; }; struct kvm_vm_stat { diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index e127703e277e..4c39ec5fc4fe 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2779,6 +2779,9 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) msr_info->data = vcpu->arch.osvw.status; break; case MSR_PLATFORM_INFO: + if (!msr_info->host_initiated && + !vcpu->kvm->arch.guest_can_read_msr_platform_info) + return 1; msr_info->data = vcpu->arch.msr_platform_info; break; case MSR_MISC_FEATURES_ENABLES: @@ -2926,6 +2929,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_SPLIT_IRQCHIP: case KVM_CAP_IMMEDIATE_EXIT: case KVM_CAP_GET_MSR_FEATURES: + case KVM_CAP_MSR_PLATFORM_INFO: r = 1; break; case KVM_CAP_SYNC_REGS: @@ -4349,6 +4353,10 @@ split_irqchip_unlock: kvm->arch.pause_in_guest = true; r = 0; break; + case KVM_CAP_MSR_PLATFORM_INFO: + kvm->arch.guest_can_read_msr_platform_info = cap->args[0]; + r = 0; + break; default: r = -EINVAL; break; @@ -8857,6 +8865,8 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) kvm->arch.kvmclock_offset = -ktime_get_boot_ns(); pvclock_update_vm_gtod_copy(kvm); + kvm->arch.guest_can_read_msr_platform_info = true; + INIT_DELAYED_WORK(&kvm->arch.kvmclock_update_work, kvmclock_update_fn); INIT_DELAYED_WORK(&kvm->arch.kvmclock_sync_work, kvmclock_sync_fn); diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 07548de5c988..251be353f950 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -952,6 +952,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_S390_HPAGE_1M 156 #define KVM_CAP_NESTED_STATE 157 #define KVM_CAP_ARM_INJECT_SERROR_ESR 158 +#define KVM_CAP_MSR_PLATFORM_INFO 159 #ifdef KVM_CAP_IRQ_ROUTING From 8b56ee91ffc88ea01400c012e10fe22a9d233265 Mon Sep 17 00:00:00 2001 From: Drew Schmitt Date: Mon, 20 Aug 2018 10:32:16 -0700 Subject: [PATCH 1141/1762] kvm: selftests: Add platform_info_test Test guest access to MSR_PLATFORM_INFO when the capability is enabled or disabled. Signed-off-by: Drew Schmitt Signed-off-by: Paolo Bonzini --- tools/testing/selftests/kvm/.gitignore | 1 + tools/testing/selftests/kvm/Makefile | 3 +- .../testing/selftests/kvm/include/kvm_util.h | 4 + tools/testing/selftests/kvm/lib/kvm_util.c | 89 ++++++++++++++ .../selftests/kvm/platform_info_test.c | 110 ++++++++++++++++++ 5 files changed, 206 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/kvm/platform_info_test.c diff --git a/tools/testing/selftests/kvm/.gitignore b/tools/testing/selftests/kvm/.gitignore index 4202139d81d9..5c34752e1cff 100644 --- a/tools/testing/selftests/kvm/.gitignore +++ b/tools/testing/selftests/kvm/.gitignore @@ -1,4 +1,5 @@ cr4_cpuid_sync_test +platform_info_test set_sregs_test sync_regs_test vmx_tsc_adjust_test diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile index 48c970c90353..37e4bd8619a6 100644 --- a/tools/testing/selftests/kvm/Makefile +++ b/tools/testing/selftests/kvm/Makefile @@ -6,7 +6,8 @@ UNAME_M := $(shell uname -m) LIBKVM = lib/assert.c lib/elf.c lib/io.c lib/kvm_util.c lib/sparsebit.c LIBKVM_x86_64 = lib/x86.c lib/vmx.c -TEST_GEN_PROGS_x86_64 = set_sregs_test +TEST_GEN_PROGS_x86_64 = platform_info_test +TEST_GEN_PROGS_x86_64 += set_sregs_test TEST_GEN_PROGS_x86_64 += sync_regs_test TEST_GEN_PROGS_x86_64 += vmx_tsc_adjust_test TEST_GEN_PROGS_x86_64 += cr4_cpuid_sync_test diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h index bb5a25fb82c6..3acf9a91704c 100644 --- a/tools/testing/selftests/kvm/include/kvm_util.h +++ b/tools/testing/selftests/kvm/include/kvm_util.h @@ -50,6 +50,7 @@ enum vm_mem_backing_src_type { }; int kvm_check_cap(long cap); +int vm_enable_cap(struct kvm_vm *vm, struct kvm_enable_cap *cap); struct kvm_vm *vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm); void kvm_vm_free(struct kvm_vm *vmp); @@ -108,6 +109,9 @@ void vcpu_events_get(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_vcpu_events *events); void vcpu_events_set(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_vcpu_events *events); +uint64_t vcpu_get_msr(struct kvm_vm *vm, uint32_t vcpuid, uint64_t msr_index); +void vcpu_set_msr(struct kvm_vm *vm, uint32_t vcpuid, uint64_t msr_index, + uint64_t msr_value); const char *exit_reason_str(unsigned int exit_reason); diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index e9ba389c48db..6fd8c089cafc 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -63,6 +63,29 @@ int kvm_check_cap(long cap) return ret; } +/* VM Enable Capability + * + * Input Args: + * vm - Virtual Machine + * cap - Capability + * + * Output Args: None + * + * Return: On success, 0. On failure a TEST_ASSERT failure is produced. + * + * Enables a capability (KVM_CAP_*) on the VM. + */ +int vm_enable_cap(struct kvm_vm *vm, struct kvm_enable_cap *cap) +{ + int ret; + + ret = ioctl(vm->fd, KVM_ENABLE_CAP, cap); + TEST_ASSERT(ret == 0, "KVM_ENABLE_CAP IOCTL failed,\n" + " rc: %i errno: %i", ret, errno); + + return ret; +} + static void vm_open(struct kvm_vm *vm, int perm) { vm->kvm_fd = open(KVM_DEV_PATH, perm); @@ -1220,6 +1243,72 @@ void vcpu_events_set(struct kvm_vm *vm, uint32_t vcpuid, ret, errno); } +/* VCPU Get MSR + * + * Input Args: + * vm - Virtual Machine + * vcpuid - VCPU ID + * msr_index - Index of MSR + * + * Output Args: None + * + * Return: On success, value of the MSR. On failure a TEST_ASSERT is produced. + * + * Get value of MSR for VCPU. + */ +uint64_t vcpu_get_msr(struct kvm_vm *vm, uint32_t vcpuid, uint64_t msr_index) +{ + struct vcpu *vcpu = vcpu_find(vm, vcpuid); + struct { + struct kvm_msrs header; + struct kvm_msr_entry entry; + } buffer = {}; + int r; + + TEST_ASSERT(vcpu != NULL, "vcpu not found, vcpuid: %u", vcpuid); + buffer.header.nmsrs = 1; + buffer.entry.index = msr_index; + r = ioctl(vcpu->fd, KVM_GET_MSRS, &buffer.header); + TEST_ASSERT(r == 1, "KVM_GET_MSRS IOCTL failed,\n" + " rc: %i errno: %i", r, errno); + + return buffer.entry.data; +} + +/* VCPU Set MSR + * + * Input Args: + * vm - Virtual Machine + * vcpuid - VCPU ID + * msr_index - Index of MSR + * msr_value - New value of MSR + * + * Output Args: None + * + * Return: On success, nothing. On failure a TEST_ASSERT is produced. + * + * Set value of MSR for VCPU. + */ +void vcpu_set_msr(struct kvm_vm *vm, uint32_t vcpuid, uint64_t msr_index, + uint64_t msr_value) +{ + struct vcpu *vcpu = vcpu_find(vm, vcpuid); + struct { + struct kvm_msrs header; + struct kvm_msr_entry entry; + } buffer = {}; + int r; + + TEST_ASSERT(vcpu != NULL, "vcpu not found, vcpuid: %u", vcpuid); + memset(&buffer, 0, sizeof(buffer)); + buffer.header.nmsrs = 1; + buffer.entry.index = msr_index; + buffer.entry.data = msr_value; + r = ioctl(vcpu->fd, KVM_SET_MSRS, &buffer.header); + TEST_ASSERT(r == 1, "KVM_SET_MSRS IOCTL failed,\n" + " rc: %i errno: %i", r, errno); +} + /* VM VCPU Args Set * * Input Args: diff --git a/tools/testing/selftests/kvm/platform_info_test.c b/tools/testing/selftests/kvm/platform_info_test.c new file mode 100644 index 000000000000..3764e7121265 --- /dev/null +++ b/tools/testing/selftests/kvm/platform_info_test.c @@ -0,0 +1,110 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Test for x86 KVM_CAP_MSR_PLATFORM_INFO + * + * Copyright (C) 2018, Google LLC. + * + * This work is licensed under the terms of the GNU GPL, version 2. + * + * Verifies expected behavior of controlling guest access to + * MSR_PLATFORM_INFO. + */ + +#define _GNU_SOURCE /* for program_invocation_short_name */ +#include +#include +#include +#include +#include + +#include "test_util.h" +#include "kvm_util.h" +#include "x86.h" + +#define VCPU_ID 0 +#define MSR_PLATFORM_INFO_MAX_TURBO_RATIO 0xff00 + +static void guest_code(void) +{ + uint64_t msr_platform_info; + + for (;;) { + msr_platform_info = rdmsr(MSR_PLATFORM_INFO); + GUEST_SYNC(msr_platform_info); + asm volatile ("inc %r11"); + } +} + +static void set_msr_platform_info_enabled(struct kvm_vm *vm, bool enable) +{ + struct kvm_enable_cap cap = {}; + + cap.cap = KVM_CAP_MSR_PLATFORM_INFO; + cap.flags = 0; + cap.args[0] = (int)enable; + vm_enable_cap(vm, &cap); +} + +static void test_msr_platform_info_enabled(struct kvm_vm *vm) +{ + struct kvm_run *run = vcpu_state(vm, VCPU_ID); + struct guest_args args; + + set_msr_platform_info_enabled(vm, true); + vcpu_run(vm, VCPU_ID); + TEST_ASSERT(run->exit_reason == KVM_EXIT_IO, + "Exit_reason other than KVM_EXIT_IO: %u (%s),\n", + run->exit_reason, + exit_reason_str(run->exit_reason)); + guest_args_read(vm, VCPU_ID, &args); + TEST_ASSERT(args.port == GUEST_PORT_SYNC, + "Received IO from port other than PORT_HOST_SYNC: %u\n", + run->io.port); + TEST_ASSERT((args.arg1 & MSR_PLATFORM_INFO_MAX_TURBO_RATIO) == + MSR_PLATFORM_INFO_MAX_TURBO_RATIO, + "Expected MSR_PLATFORM_INFO to have max turbo ratio mask: %i.", + MSR_PLATFORM_INFO_MAX_TURBO_RATIO); +} + +static void test_msr_platform_info_disabled(struct kvm_vm *vm) +{ + struct kvm_run *run = vcpu_state(vm, VCPU_ID); + + set_msr_platform_info_enabled(vm, false); + vcpu_run(vm, VCPU_ID); + TEST_ASSERT(run->exit_reason == KVM_EXIT_SHUTDOWN, + "Exit_reason other than KVM_EXIT_SHUTDOWN: %u (%s)\n", + run->exit_reason, + exit_reason_str(run->exit_reason)); +} + +int main(int argc, char *argv[]) +{ + struct kvm_vm *vm; + struct kvm_run *state; + int rv; + uint64_t msr_platform_info; + + /* Tell stdout not to buffer its content */ + setbuf(stdout, NULL); + + rv = kvm_check_cap(KVM_CAP_MSR_PLATFORM_INFO); + if (!rv) { + fprintf(stderr, + "KVM_CAP_MSR_PLATFORM_INFO not supported, skip test\n"); + exit(KSFT_SKIP); + } + + vm = vm_create_default(VCPU_ID, 0, guest_code); + + msr_platform_info = vcpu_get_msr(vm, VCPU_ID, MSR_PLATFORM_INFO); + vcpu_set_msr(vm, VCPU_ID, MSR_PLATFORM_INFO, + msr_platform_info | MSR_PLATFORM_INFO_MAX_TURBO_RATIO); + test_msr_platform_info_disabled(vm); + test_msr_platform_info_enabled(vm); + vcpu_set_msr(vm, VCPU_ID, MSR_PLATFORM_INFO, msr_platform_info); + + kvm_vm_free(vm); + + return 0; +} From 30f3984ede683b98a4e8096e200df78bf0609b4f Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 18 Sep 2018 15:28:24 -0500 Subject: [PATCH 1142/1762] drm/amdgpu: add new polaris pci id Add new pci id. Reviewed-by: Rex Zhu Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c | 14 ++++++++------ drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 1 + 2 files changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c index 693ec5ea4950..8816c697b205 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c @@ -367,12 +367,14 @@ static int amdgpu_cgs_get_firmware_info(struct cgs_device *cgs_device, break; case CHIP_POLARIS10: if (type == CGS_UCODE_ID_SMU) { - if ((adev->pdev->device == 0x67df) && - ((adev->pdev->revision == 0xe0) || - (adev->pdev->revision == 0xe3) || - (adev->pdev->revision == 0xe4) || - (adev->pdev->revision == 0xe5) || - (adev->pdev->revision == 0xe7) || + if (((adev->pdev->device == 0x67df) && + ((adev->pdev->revision == 0xe0) || + (adev->pdev->revision == 0xe3) || + (adev->pdev->revision == 0xe4) || + (adev->pdev->revision == 0xe5) || + (adev->pdev->revision == 0xe7) || + (adev->pdev->revision == 0xef))) || + ((adev->pdev->device == 0x6fdf) && (adev->pdev->revision == 0xef))) { info->is_kicker = true; strcpy(fw_name, "amdgpu/polaris10_k_smc.bin"); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 8843a06360fa..0f41d8647376 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -740,6 +740,7 @@ static const struct pci_device_id pciidlist[] = { {0x1002, 0x67CA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_POLARIS10}, {0x1002, 0x67CC, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_POLARIS10}, {0x1002, 0x67CF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_POLARIS10}, + {0x1002, 0x6FDF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_POLARIS10}, /* Polaris12 */ {0x1002, 0x6980, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_POLARIS12}, {0x1002, 0x6981, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_POLARIS12}, From 13b91ed77a65cf3bf23353880245d0cbd9138294 Mon Sep 17 00:00:00 2001 From: Icenowy Zheng Date: Sun, 16 Sep 2018 12:34:09 +0800 Subject: [PATCH 1143/1762] ARM: dts: sun8i: drop A64 HDMI PHY fallback compatible from R40 DT The R40 HDMI PHY seems to be different to the A64 one, the A64 one has no input mux, but the R40 one has. Drop the A64 fallback compatible from the HDMI PHY node in R40 DT. Signed-off-by: Icenowy Zheng Signed-off-by: Maxime Ripard [wens@csie.org: Fix subject prefix order] Signed-off-by: Chen-Yu Tsai --- arch/arm/boot/dts/sun8i-r40.dtsi | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi index ffd9f00f74a4..5f547c161baf 100644 --- a/arch/arm/boot/dts/sun8i-r40.dtsi +++ b/arch/arm/boot/dts/sun8i-r40.dtsi @@ -800,8 +800,7 @@ }; hdmi_phy: hdmi-phy@1ef0000 { - compatible = "allwinner,sun8i-r40-hdmi-phy", - "allwinner,sun50i-a64-hdmi-phy"; + compatible = "allwinner,sun8i-r40-hdmi-phy"; reg = <0x01ef0000 0x10000>; clocks = <&ccu CLK_BUS_HDMI1>, <&ccu CLK_HDMI_SLOW>, <&ccu 7>, <&ccu 16>; From 76c0ddd8c3a683f6e2c6e60e11dc1a1558caf4bc Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Wed, 19 Sep 2018 15:02:07 +0200 Subject: [PATCH 1144/1762] ip6_tunnel: be careful when accessing the inner header the ip6 tunnel xmit ndo assumes that the processed skb always contains an ip[v6] header, but syzbot has found a way to send frames that fall short of this assumption, leading to the following splat: BUG: KMSAN: uninit-value in ip6ip6_tnl_xmit net/ipv6/ip6_tunnel.c:1307 [inline] BUG: KMSAN: uninit-value in ip6_tnl_start_xmit+0x7d2/0x1ef0 net/ipv6/ip6_tunnel.c:1390 CPU: 0 PID: 4504 Comm: syz-executor558 Not tainted 4.16.0+ #87 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:53 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:683 ip6ip6_tnl_xmit net/ipv6/ip6_tunnel.c:1307 [inline] ip6_tnl_start_xmit+0x7d2/0x1ef0 net/ipv6/ip6_tunnel.c:1390 __netdev_start_xmit include/linux/netdevice.h:4066 [inline] netdev_start_xmit include/linux/netdevice.h:4075 [inline] xmit_one net/core/dev.c:3026 [inline] dev_hard_start_xmit+0x5f1/0xc70 net/core/dev.c:3042 __dev_queue_xmit+0x27ee/0x3520 net/core/dev.c:3557 dev_queue_xmit+0x4b/0x60 net/core/dev.c:3590 packet_snd net/packet/af_packet.c:2944 [inline] packet_sendmsg+0x7c70/0x8a30 net/packet/af_packet.c:2969 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg net/socket.c:640 [inline] ___sys_sendmsg+0xec0/0x1310 net/socket.c:2046 __sys_sendmmsg+0x42d/0x800 net/socket.c:2136 SYSC_sendmmsg+0xc4/0x110 net/socket.c:2167 SyS_sendmmsg+0x63/0x90 net/socket.c:2162 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 RIP: 0033:0x441819 RSP: 002b:00007ffe58ee8268 EFLAGS: 00000213 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441819 RDX: 0000000000000002 RSI: 0000000020000100 RDI: 0000000000000003 RBP: 00000000006cd018 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000402510 R13: 00000000004025a0 R14: 0000000000000000 R15: 0000000000000000 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline] kmsan_internal_poison_shadow+0xb8/0x1b0 mm/kmsan/kmsan.c:188 kmsan_kmalloc+0x94/0x100 mm/kmsan/kmsan.c:314 kmsan_slab_alloc+0x11/0x20 mm/kmsan/kmsan.c:321 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc_node mm/slub.c:2737 [inline] __kmalloc_node_track_caller+0xaed/0x11c0 mm/slub.c:4369 __kmalloc_reserve net/core/skbuff.c:138 [inline] __alloc_skb+0x2cf/0x9f0 net/core/skbuff.c:206 alloc_skb include/linux/skbuff.h:984 [inline] alloc_skb_with_frags+0x1d4/0xb20 net/core/skbuff.c:5234 sock_alloc_send_pskb+0xb56/0x1190 net/core/sock.c:2085 packet_alloc_skb net/packet/af_packet.c:2803 [inline] packet_snd net/packet/af_packet.c:2894 [inline] packet_sendmsg+0x6454/0x8a30 net/packet/af_packet.c:2969 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg net/socket.c:640 [inline] ___sys_sendmsg+0xec0/0x1310 net/socket.c:2046 __sys_sendmmsg+0x42d/0x800 net/socket.c:2136 SYSC_sendmmsg+0xc4/0x110 net/socket.c:2167 SyS_sendmmsg+0x63/0x90 net/socket.c:2162 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 This change addresses the issue adding the needed check before accessing the inner header. The ipv4 side of the issue is apparently there since the ipv4 over ipv6 initial support, and the ipv6 side predates git history. Fixes: c4d3efafcc93 ("[IPV6] IP6TUNNEL: Add support to IPv4 over IPv6 tunnel.") Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot+3fde91d4d394747d6db4@syzkaller.appspotmail.com Tested-by: Alexander Potapenko Signed-off-by: Paolo Abeni Signed-off-by: David S. Miller --- net/ipv6/ip6_tunnel.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 419960b0ba16..a0b6932c3afd 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -1234,7 +1234,7 @@ static inline int ip4ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev) { struct ip6_tnl *t = netdev_priv(dev); - const struct iphdr *iph = ip_hdr(skb); + const struct iphdr *iph; int encap_limit = -1; struct flowi6 fl6; __u8 dsfield; @@ -1242,6 +1242,11 @@ ip4ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev) u8 tproto; int err; + /* ensure we can access the full inner ip header */ + if (!pskb_may_pull(skb, sizeof(struct iphdr))) + return -1; + + iph = ip_hdr(skb); memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt)); tproto = READ_ONCE(t->parms.proto); @@ -1306,7 +1311,7 @@ static inline int ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev) { struct ip6_tnl *t = netdev_priv(dev); - struct ipv6hdr *ipv6h = ipv6_hdr(skb); + struct ipv6hdr *ipv6h; int encap_limit = -1; __u16 offset; struct flowi6 fl6; @@ -1315,6 +1320,10 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev) u8 tproto; int err; + if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h)))) + return -1; + + ipv6h = ipv6_hdr(skb); tproto = READ_ONCE(t->parms.proto); if ((tproto != IPPROTO_IPV6 && tproto != 0) || ip6_tnl_addr_conflict(t, ipv6h)) From cf5cca6e4cc4dea604d8c83e7676f10459d6809c Mon Sep 17 00:00:00 2001 From: Antoine Tenart Date: Wed, 19 Sep 2018 15:29:06 +0200 Subject: [PATCH 1145/1762] net: mvneta: fix the Rx desc buffer DMA unmapping With CONFIG_DMA_API_DEBUG enabled we now get a warning when using the mvneta driver: mvneta d0030000.ethernet: DMA-API: device driver frees DMA memory with wrong function [device address=0x000000001165b000] [size=4096 bytes] [mapped as page] [unmapped as single] This is because when using the s/w buffer management, the Rx descriptor buffer is mapped with dma_map_page but unmapped with dma_unmap_single. This patch fixes this by using the right unmapping function. Fixes: 562e2f467e71 ("net: mvneta: Improve the buffer allocation method for SWBM") Signed-off-by: Antoine Tenart Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvneta.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index bc80a678abc3..2db9708f2e24 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -2008,8 +2008,8 @@ static int mvneta_rx_swbm(struct napi_struct *napi, skb_add_rx_frag(rxq->skb, frag_num, page, frag_offset, frag_size, PAGE_SIZE); - dma_unmap_single(dev->dev.parent, phys_addr, - PAGE_SIZE, DMA_FROM_DEVICE); + dma_unmap_page(dev->dev.parent, phys_addr, + PAGE_SIZE, DMA_FROM_DEVICE); rxq->left_size -= frag_size; } } else { From 7233b8cab39014620ac9534da11f0f3e506d8fd8 Mon Sep 17 00:00:00 2001 From: Alexey Kardashevskiy Date: Tue, 11 Sep 2018 15:38:05 +1000 Subject: [PATCH 1146/1762] powerpc/powernv/ioda2: Reduce upper limit for DMA window size (again) mpe: This was fixed originally in commit d3d4ffaae439 ("powerpc/powernv/ioda2: Reduce upper limit for DMA window size"), but contrary to what the merge commit says was inadvertently lost by me in commit ce57c6610cc2 ("Merge branch 'topic/ppc-kvm' into next") which brought in changes that moved the code to a new file. So reapply it to the new file. Original commit message follows: We use PHB in mode1 which uses bit 59 to select a correct DMA window. However there is mode2 which uses bits 59:55 and allows up to 32 DMA windows per a PE. Even though documentation does not clearly specify that, it seems that the actual hardware does not support bits 59:55 even in mode1, in other words we can create a window as big as 1<<58 but DMA simply won't work. This reduces the upper limit from 59 to 55 bits to let the userspace know about the hardware limits. Fixes: ce57c6610cc2 ("Merge branch 'topic/ppc-kvm' into next") Signed-off-by: Alexey Kardashevskiy Signed-off-by: Michael Ellerman --- arch/powerpc/platforms/powernv/pci-ioda-tce.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/powernv/pci-ioda-tce.c b/arch/powerpc/platforms/powernv/pci-ioda-tce.c index 6c5db1acbe8d..fe9691040f54 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda-tce.c +++ b/arch/powerpc/platforms/powernv/pci-ioda-tce.c @@ -276,7 +276,7 @@ long pnv_pci_ioda2_table_alloc_pages(int nid, __u64 bus_offset, level_shift = entries_shift + 3; level_shift = max_t(unsigned int, level_shift, PAGE_SHIFT); - if ((level_shift - 3) * levels + page_shift >= 60) + if ((level_shift - 3) * levels + page_shift >= 55) return -EINVAL; /* Allocate TCE table */ From bfc888261474efb0676f0e1d128f22c9692b97b1 Mon Sep 17 00:00:00 2001 From: Deepak Rawat Date: Thu, 13 Sep 2018 12:33:49 +0200 Subject: [PATCH 1147/1762] drm/vmwgfx: don't check for old_crtc_state enable status During atomic check to prepare the new topology no need to check if old_crtc_state was enabled or not. This will cause atomic_check to fail because due to connector routing a crtc can be in atomic_state even if there was no change to enable status. Detected this issue with igt run. Signed-off-by: Deepak Rawat Reviewed-by: Sinclair Yeh Signed-off-by: Thomas Hellstrom --- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index 23beff5d8e3c..636b962849c8 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -1615,7 +1615,7 @@ static int vmw_kms_check_topology(struct drm_device *dev, struct drm_connector_state *conn_state; struct vmw_connector_state *vmw_conn_state; - if (!new_crtc_state->enable && old_crtc_state->enable) { + if (!new_crtc_state->enable) { rects[i].x1 = 0; rects[i].y1 = 0; rects[i].x2 = 0; From 0c1b174b1b9a497230f937345d4db76fea267398 Mon Sep 17 00:00:00 2001 From: Deepak Rawat Date: Thu, 13 Sep 2018 12:34:37 +0200 Subject: [PATCH 1148/1762] drm/vmwgfx: limit screen size to stdu_max during check_modeset For STDU individual screen target size is limited by SVGA_REG_SCREENTARGET_MAX_WIDTH/HEIGHT registers so add that limit during atomic check_modeset. An additional limit is placed in the update_layout ioctl to avoid requesting layouts that current user-space typically can't support. Also modified the comments to reflect current limitation on topology. Signed-off-by: Deepak Rawat Reviewed-by: Sinclair Yeh Reviewed-by: Thomas Hellstrom Signed-off-by: Thomas Hellstrom --- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 30 +++++++++++++++++++++-------- 1 file changed, 22 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index 636b962849c8..12a41b039167 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -1512,21 +1512,19 @@ static int vmw_kms_check_display_memory(struct drm_device *dev, struct drm_rect *rects) { struct vmw_private *dev_priv = vmw_priv(dev); - struct drm_mode_config *mode_config = &dev->mode_config; struct drm_rect bounding_box = {0}; u64 total_pixels = 0, pixel_mem, bb_mem; int i; for (i = 0; i < num_rects; i++) { /* - * Currently this check is limiting the topology within max - * texture/screentarget size. This should change in future when - * user-space support multiple fb with topology. + * For STDU only individual screen (screen target) is limited by + * SCREENTARGET_MAX_WIDTH/HEIGHT registers. */ - if (rects[i].x1 < 0 || rects[i].y1 < 0 || - rects[i].x2 > mode_config->max_width || - rects[i].y2 > mode_config->max_height) { - DRM_ERROR("Invalid GUI layout.\n"); + if (dev_priv->active_display_unit == vmw_du_screen_target && + (drm_rect_width(&rects[i]) > dev_priv->stdu_max_width || + drm_rect_height(&rects[i]) > dev_priv->stdu_max_height)) { + DRM_ERROR("Screen size not supported.\n"); return -EINVAL; } @@ -2376,6 +2374,7 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct vmw_private *dev_priv = vmw_priv(dev); + struct drm_mode_config *mode_config = &dev->mode_config; struct drm_vmw_update_layout_arg *arg = (struct drm_vmw_update_layout_arg *)data; void __user *user_rects; @@ -2421,6 +2420,21 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, drm_rects[i].y1 = curr_rect.y; drm_rects[i].x2 = curr_rect.x + curr_rect.w; drm_rects[i].y2 = curr_rect.y + curr_rect.h; + + /* + * Currently this check is limiting the topology within + * mode_config->max (which actually is max texture size + * supported by virtual device). This limit is here to address + * window managers that create a big framebuffer for whole + * topology. + */ + if (drm_rects[i].x1 < 0 || drm_rects[i].y1 < 0 || + drm_rects[i].x2 > mode_config->max_width || + drm_rects[i].y2 > mode_config->max_height) { + DRM_ERROR("Invalid GUI layout.\n"); + ret = -EINVAL; + goto out_free; + } } ret = vmw_kms_check_display_memory(dev, arg->num_outputs, drm_rects); From 140b4e67c2e1269a945c5caacdcb0c0346ad4cef Mon Sep 17 00:00:00 2001 From: Deepak Rawat Date: Thu, 13 Sep 2018 12:44:13 +0200 Subject: [PATCH 1149/1762] drm/vmwgfx: limit mode size for all display unit to texture_max For all display units, limit mode size exposed to texture_max_width/ height as this is the maximum framebuffer size that virtual device can create. Signed-off-by: Deepak Rawat Reviewed-by: Sinclair Yeh Reviewed-by: Thomas Hellstrom Signed-off-by: Thomas Hellstrom --- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index 12a41b039167..6a712a8d59e9 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -2214,12 +2214,16 @@ int vmw_du_connector_fill_modes(struct drm_connector *connector, if (dev_priv->assume_16bpp) assumed_bpp = 2; + max_width = min(max_width, dev_priv->texture_max_width); + max_height = min(max_height, dev_priv->texture_max_height); + + /* + * For STDU extra limit for a mode on SVGA_REG_SCREENTARGET_MAX_WIDTH/ + * HEIGHT registers. + */ if (dev_priv->active_display_unit == vmw_du_screen_target) { max_width = min(max_width, dev_priv->stdu_max_width); - max_width = min(max_width, dev_priv->texture_max_width); - max_height = min(max_height, dev_priv->stdu_max_height); - max_height = min(max_height, dev_priv->texture_max_height); } /* Add preferred mode */ From a4bd815a94b7aae27e2413f2ce7b458f9843b8ae Mon Sep 17 00:00:00 2001 From: Deepak Rawat Date: Thu, 13 Sep 2018 12:46:10 +0200 Subject: [PATCH 1150/1762] drm/vmwgfx: Don't impose STDU limits on framebuffer size If framebuffers are larger, we create bounce surfaces that are within STDU limits. Signed-off-by: Deepak Rawat Reviewed-by: Thomas Hellstrom Signed-off-by: Thomas Hellstrom --- drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 25 ------------------------- drivers/gpu/drm/vmwgfx/vmwgfx_surface.c | 24 ++++++++++++++---------- 2 files changed, 14 insertions(+), 35 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c index 93f6b96ca7bb..f30e839f7bfd 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c @@ -1600,31 +1600,6 @@ int vmw_kms_stdu_init_display(struct vmw_private *dev_priv) dev_priv->active_display_unit = vmw_du_screen_target; - if (dev_priv->capabilities & SVGA_CAP_3D) { - /* - * For 3D VMs, display (scanout) buffer size is the smaller of - * max texture and max STDU - */ - uint32_t max_width, max_height; - - max_width = min(dev_priv->texture_max_width, - dev_priv->stdu_max_width); - max_height = min(dev_priv->texture_max_height, - dev_priv->stdu_max_height); - - dev->mode_config.max_width = max_width; - dev->mode_config.max_height = max_height; - } else { - /* - * Given various display aspect ratios, there's no way to - * estimate these using prim_bb_mem. So just set these to - * something arbitrarily large and we will reject any layout - * that doesn't fit prim_bb_mem later - */ - dev->mode_config.max_width = 8192; - dev->mode_config.max_height = 8192; - } - vmw_kms_create_implicit_placement_property(dev_priv, false); for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) { diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c index e125233e074b..80a01cd4c051 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -1404,22 +1404,17 @@ int vmw_surface_gb_priv_define(struct drm_device *dev, *srf_out = NULL; if (for_scanout) { - uint32_t max_width, max_height; - if (!svga3dsurface_is_screen_target_format(format)) { DRM_ERROR("Invalid Screen Target surface format."); return -EINVAL; } - max_width = min(dev_priv->texture_max_width, - dev_priv->stdu_max_width); - max_height = min(dev_priv->texture_max_height, - dev_priv->stdu_max_height); - - if (size.width > max_width || size.height > max_height) { + if (size.width > dev_priv->texture_max_width || + size.height > dev_priv->texture_max_height) { DRM_ERROR("%ux%u\n, exceeds max surface size %ux%u", size.width, size.height, - max_width, max_height); + dev_priv->texture_max_width, + dev_priv->texture_max_height); return -EINVAL; } } else { @@ -1495,8 +1490,17 @@ int vmw_surface_gb_priv_define(struct drm_device *dev, if (srf->flags & SVGA3D_SURFACE_BIND_STREAM_OUTPUT) srf->res.backup_size += sizeof(SVGA3dDXSOState); + /* + * Don't set SVGA3D_SURFACE_SCREENTARGET flag for a scanout surface with + * size greater than STDU max width/height. This is really a workaround + * to support creation of big framebuffer requested by some user-space + * for whole topology. That big framebuffer won't really be used for + * binding with screen target as during prepare_fb a separate surface is + * created so it's safe to ignore SVGA3D_SURFACE_SCREENTARGET flag. + */ if (dev_priv->active_display_unit == vmw_du_screen_target && - for_scanout) + for_scanout && size.width <= dev_priv->stdu_max_width && + size.height <= dev_priv->stdu_max_height) srf->flags |= SVGA3D_SURFACE_SCREENTARGET; /* From e71cf591876536f7dd5a54ef68d631278ca6faa1 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Fri, 14 Sep 2018 09:24:19 +0200 Subject: [PATCH 1151/1762] drm/vmwgfx: Fix buffer object eviction MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 19be55701071 ("drm/ttm: add operation ctx to ttm_bo_validate v2") introduced a regression where the vmwgfx driver refused to evict a buffer that was still busy instead of waiting for it to become idle. Fix this. Cc: Signed-off-by: Thomas Hellstrom Reviewed-by: Christian König --- drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index 1f134570b759..f0ab6b2313bb 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -3729,7 +3729,7 @@ int vmw_validate_single_buffer(struct vmw_private *dev_priv, { struct vmw_buffer_object *vbo = container_of(bo, struct vmw_buffer_object, base); - struct ttm_operation_ctx ctx = { interruptible, true }; + struct ttm_operation_ctx ctx = { interruptible, false }; int ret; if (vbo->pin_count > 0) From 50fdf60181b01b7383b85d4b9acbb842263d96a2 Mon Sep 17 00:00:00 2001 From: Sudarsana Reddy Kalluru Date: Wed, 19 Sep 2018 21:59:10 -0700 Subject: [PATCH 1152/1762] qed: Fix populating the invalid stag value in multi function mode. In multi-function mode, driver receives the stag value (outer vlan) for a PF from management FW (MFW). If the stag value is negotiated prior to the driver load, then the stag is not notified to the driver and hence driver will have the invalid stag value. The fix is to request the MFW for STAG value during the driver load time. Fixes: cac6f691 ("qed: Add support for Unified Fabric Port") Signed-off-by: Sudarsana Reddy Kalluru Signed-off-by: Tomer Tayar Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_dev.c | 15 ++++++++++++++- drivers/net/ethernet/qlogic/qed/qed_hsi.h | 4 ++++ 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c index 016ca8a7ec8a..97f073fd3725 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_dev.c +++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c @@ -1706,7 +1706,7 @@ static int qed_vf_start(struct qed_hwfn *p_hwfn, int qed_hw_init(struct qed_dev *cdev, struct qed_hw_init_params *p_params) { struct qed_load_req_params load_req_params; - u32 load_code, param, drv_mb_param; + u32 load_code, resp, param, drv_mb_param; bool b_default_mtu = true; struct qed_hwfn *p_hwfn; int rc = 0, mfw_rc, i; @@ -1852,6 +1852,19 @@ int qed_hw_init(struct qed_dev *cdev, struct qed_hw_init_params *p_params) if (IS_PF(cdev)) { p_hwfn = QED_LEADING_HWFN(cdev); + + /* Get pre-negotiated values for stag, bandwidth etc. */ + DP_VERBOSE(p_hwfn, + QED_MSG_SPQ, + "Sending GET_OEM_UPDATES command to trigger stag/bandwidth attention handling\n"); + drv_mb_param = 1 << DRV_MB_PARAM_DUMMY_OEM_UPDATES_OFFSET; + rc = qed_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt, + DRV_MSG_CODE_GET_OEM_UPDATES, + drv_mb_param, &resp, ¶m); + if (rc) + DP_NOTICE(p_hwfn, + "Failed to send GET_OEM_UPDATES attention request\n"); + drv_mb_param = STORM_FW_VERSION; rc = qed_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt, DRV_MSG_CODE_OV_UPDATE_STORM_FW_VER, diff --git a/drivers/net/ethernet/qlogic/qed/qed_hsi.h b/drivers/net/ethernet/qlogic/qed/qed_hsi.h index 8faceb691657..9b3ef00e5782 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_hsi.h +++ b/drivers/net/ethernet/qlogic/qed/qed_hsi.h @@ -12414,6 +12414,7 @@ struct public_drv_mb { #define DRV_MSG_SET_RESOURCE_VALUE_MSG 0x35000000 #define DRV_MSG_CODE_OV_UPDATE_WOL 0x38000000 #define DRV_MSG_CODE_OV_UPDATE_ESWITCH_MODE 0x39000000 +#define DRV_MSG_CODE_GET_OEM_UPDATES 0x41000000 #define DRV_MSG_CODE_BW_UPDATE_ACK 0x32000000 #define DRV_MSG_CODE_NIG_DRAIN 0x30000000 @@ -12541,6 +12542,9 @@ struct public_drv_mb { #define DRV_MB_PARAM_ESWITCH_MODE_VEB 0x1 #define DRV_MB_PARAM_ESWITCH_MODE_VEPA 0x2 +#define DRV_MB_PARAM_DUMMY_OEM_UPDATES_MASK 0x1 +#define DRV_MB_PARAM_DUMMY_OEM_UPDATES_OFFSET 0 + #define DRV_MB_PARAM_SET_LED_MODE_OPER 0x0 #define DRV_MB_PARAM_SET_LED_MODE_ON 0x1 #define DRV_MB_PARAM_SET_LED_MODE_OFF 0x2 From 0216da9413afa546627a1b0d319dfd17fef34050 Mon Sep 17 00:00:00 2001 From: Sudarsana Reddy Kalluru Date: Wed, 19 Sep 2018 21:59:11 -0700 Subject: [PATCH 1153/1762] qed: Do not add VLAN 0 tag to untagged frames in multi-function mode. In certain multi-function switch dependent modes, firmware adds vlan tag 0 to the untagged frames. This leads to double tagging for the traffic if the dcbx is enabled, which is not the desired behavior. To avoid this, driver needs to set "dcb_dont_add_vlan0" flag. Fixes: cac6f691 ("qed: Add support for Unified Fabric Port") Signed-off-by: Sudarsana Reddy Kalluru Signed-off-by: Tomer Tayar Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 9 ++++++++- drivers/net/ethernet/qlogic/qed/qed_dcbx.h | 1 + 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c index 6bb76e6d3c14..d53f33c6b1fc 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c +++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c @@ -190,6 +190,7 @@ qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data) static void qed_dcbx_set_params(struct qed_dcbx_results *p_data, + struct qed_hwfn *p_hwfn, struct qed_hw_info *p_info, bool enable, u8 prio, @@ -206,6 +207,11 @@ qed_dcbx_set_params(struct qed_dcbx_results *p_data, else p_data->arr[type].update = DONT_UPDATE_DCB_DSCP; + /* Do not add vlan tag 0 when DCB is enabled and port in UFP/OV mode */ + if ((test_bit(QED_MF_8021Q_TAGGING, &p_hwfn->cdev->mf_bits) || + test_bit(QED_MF_8021AD_TAGGING, &p_hwfn->cdev->mf_bits))) + p_data->arr[type].dont_add_vlan0 = true; + /* QM reconf data */ if (p_info->personality == personality) qed_hw_info_set_offload_tc(p_info, tc); @@ -231,7 +237,7 @@ qed_dcbx_update_app_info(struct qed_dcbx_results *p_data, personality = qed_dcbx_app_update[i].personality; - qed_dcbx_set_params(p_data, p_info, enable, + qed_dcbx_set_params(p_data, p_hwfn, p_info, enable, prio, tc, type, personality); } } @@ -954,6 +960,7 @@ static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data, p_data->dcb_enable_flag = p_src->arr[type].enable; p_data->dcb_priority = p_src->arr[type].priority; p_data->dcb_tc = p_src->arr[type].tc; + p_data->dcb_dont_add_vlan0 = p_src->arr[type].dont_add_vlan0; } /* Set pf update ramrod command params */ diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h index a4d688c04e18..01f253ea4b22 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h +++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h @@ -55,6 +55,7 @@ struct qed_dcbx_app_data { u8 update; /* Update indication */ u8 priority; /* Priority */ u8 tc; /* Traffic Class */ + bool dont_add_vlan0; /* Do not insert a vlan tag with id 0 */ }; #define QED_DCBX_VERSION_DISABLED 0 From 7e3e375ceede8fba5218362d14db7de25fa83f12 Mon Sep 17 00:00:00 2001 From: Sudarsana Reddy Kalluru Date: Wed, 19 Sep 2018 21:59:12 -0700 Subject: [PATCH 1154/1762] qed: Add missing device config for RoCE EDPM in UFP mode. This patch adds support to configure the DORQ to use vlan-id/priority for roce EDPM. Fixes: cac6f691 ("qed: Add support for Unified Fabric Port") Signed-off-by: Sudarsana Reddy Kalluru Signed-off-by: Tomer Tayar Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 40 ++++++++++--------- drivers/net/ethernet/qlogic/qed/qed_mcp.c | 24 +++++++++-- .../net/ethernet/qlogic/qed/qed_reg_addr.h | 6 +++ 3 files changed, 48 insertions(+), 22 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c index d53f33c6b1fc..f5459de6d60a 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c +++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c @@ -190,11 +190,8 @@ qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data) static void qed_dcbx_set_params(struct qed_dcbx_results *p_data, - struct qed_hwfn *p_hwfn, - struct qed_hw_info *p_info, - bool enable, - u8 prio, - u8 tc, + struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, + bool enable, u8 prio, u8 tc, enum dcbx_protocol_type type, enum qed_pci_personality personality) { @@ -213,18 +210,24 @@ qed_dcbx_set_params(struct qed_dcbx_results *p_data, p_data->arr[type].dont_add_vlan0 = true; /* QM reconf data */ - if (p_info->personality == personality) - qed_hw_info_set_offload_tc(p_info, tc); + if (p_hwfn->hw_info.personality == personality) + qed_hw_info_set_offload_tc(&p_hwfn->hw_info, tc); + + /* Configure dcbx vlan priority in doorbell block for roce EDPM */ + if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) && + type == DCBX_PROTOCOL_ROCE) { + qed_wr(p_hwfn, p_ptt, DORQ_REG_TAG1_OVRD_MODE, 1); + qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_PCP_BB_K2, prio << 1); + } } /* Update app protocol data and hw_info fields with the TLV info */ static void qed_dcbx_update_app_info(struct qed_dcbx_results *p_data, - struct qed_hwfn *p_hwfn, - bool enable, - u8 prio, u8 tc, enum dcbx_protocol_type type) + struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, + bool enable, u8 prio, u8 tc, + enum dcbx_protocol_type type) { - struct qed_hw_info *p_info = &p_hwfn->hw_info; enum qed_pci_personality personality; enum dcbx_protocol_type id; int i; @@ -237,7 +240,7 @@ qed_dcbx_update_app_info(struct qed_dcbx_results *p_data, personality = qed_dcbx_app_update[i].personality; - qed_dcbx_set_params(p_data, p_hwfn, p_info, enable, + qed_dcbx_set_params(p_data, p_hwfn, p_ptt, enable, prio, tc, type, personality); } } @@ -271,7 +274,7 @@ qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn, * reconfiguring QM. Get protocol specific data for PF update ramrod command. */ static int -qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn, +qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, struct qed_dcbx_results *p_data, struct dcbx_app_priority_entry *p_tbl, u32 pri_tc_tbl, int count, u8 dcbx_version) @@ -315,7 +318,7 @@ qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn, enable = true; } - qed_dcbx_update_app_info(p_data, p_hwfn, enable, + qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, enable, priority, tc, type); } } @@ -337,7 +340,7 @@ qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn, continue; enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version; - qed_dcbx_update_app_info(p_data, p_hwfn, enable, + qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, enable, priority, tc, type); } @@ -347,7 +350,8 @@ qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn, /* Parse app TLV's to update TC information in hw_info structure for * reconfiguring QM. Get protocol specific data for PF update ramrod command. */ -static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn) +static int +qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) { struct dcbx_app_priority_feature *p_app; struct dcbx_app_priority_entry *p_tbl; @@ -371,7 +375,7 @@ static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn) p_info = &p_hwfn->hw_info; num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES); - rc = qed_dcbx_process_tlv(p_hwfn, &data, p_tbl, pri_tc_tbl, + rc = qed_dcbx_process_tlv(p_hwfn, p_ptt, &data, p_tbl, pri_tc_tbl, num_entries, dcbx_version); if (rc) return rc; @@ -897,7 +901,7 @@ qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn, return rc; if (type == QED_DCBX_OPERATIONAL_MIB) { - rc = qed_dcbx_process_mib_info(p_hwfn); + rc = qed_dcbx_process_mib_info(p_hwfn, p_ptt); if (!rc) { /* reconfigure tcs of QM queues according * to negotiation results diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c index 5d37ec7e9b0b..58c7eb9d8e1b 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c +++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c @@ -1581,13 +1581,29 @@ static void qed_mcp_update_stag(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) p_hwfn->mcp_info->func_info.ovlan = (u16)shmem_info.ovlan_stag & FUNC_MF_CFG_OV_STAG_MASK; p_hwfn->hw_info.ovlan = p_hwfn->mcp_info->func_info.ovlan; - if ((p_hwfn->hw_info.hw_mode & BIT(MODE_MF_SD)) && - (p_hwfn->hw_info.ovlan != QED_MCP_VLAN_UNSET)) { - qed_wr(p_hwfn, p_ptt, - NIG_REG_LLH_FUNC_TAG_VALUE, p_hwfn->hw_info.ovlan); + if (test_bit(QED_MF_OVLAN_CLSS, &p_hwfn->cdev->mf_bits)) { + if (p_hwfn->hw_info.ovlan != QED_MCP_VLAN_UNSET) { + qed_wr(p_hwfn, p_ptt, NIG_REG_LLH_FUNC_TAG_VALUE, + p_hwfn->hw_info.ovlan); + qed_wr(p_hwfn, p_ptt, NIG_REG_LLH_FUNC_TAG_EN, 1); + + /* Configure DB to add external vlan to EDPM packets */ + qed_wr(p_hwfn, p_ptt, DORQ_REG_TAG1_OVRD_MODE, 1); + qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_EXT_VID_BB_K2, + p_hwfn->hw_info.ovlan); + } else { + qed_wr(p_hwfn, p_ptt, NIG_REG_LLH_FUNC_TAG_EN, 0); + qed_wr(p_hwfn, p_ptt, NIG_REG_LLH_FUNC_TAG_VALUE, 0); + qed_wr(p_hwfn, p_ptt, DORQ_REG_TAG1_OVRD_MODE, 0); + qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_EXT_VID_BB_K2, 0); + } + qed_sp_pf_update_stag(p_hwfn); } + DP_VERBOSE(p_hwfn, QED_MSG_SP, "ovlan = %d hw_mode = 0x%x\n", + p_hwfn->mcp_info->func_info.ovlan, p_hwfn->hw_info.hw_mode); + /* Acknowledge the MFW */ qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_S_TAG_UPDATE_ACK, 0, &resp, ¶m); diff --git a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h index f736f70956fd..2440970882c4 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h +++ b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h @@ -216,6 +216,12 @@ 0x00c000UL #define DORQ_REG_IFEN \ 0x100040UL +#define DORQ_REG_TAG1_OVRD_MODE \ + 0x1008b4UL +#define DORQ_REG_PF_PCP_BB_K2 \ + 0x1008c4UL +#define DORQ_REG_PF_EXT_VID_BB_K2 \ + 0x1008c8UL #define DORQ_REG_DB_DROP_REASON \ 0x100a2cUL #define DORQ_REG_DB_DROP_DETAILS \ From 32bf94fb5c2ec4ec842152d0e5937cd4bb6738fa Mon Sep 17 00:00:00 2001 From: Sean Tranchetti Date: Wed, 19 Sep 2018 13:54:56 -0600 Subject: [PATCH 1155/1762] xfrm: validate template mode XFRM mode parameters passed as part of the user templates in the IP_XFRM_POLICY are never properly validated. Passing values other than valid XFRM modes can cause stack-out-of-bounds reads to occur later in the XFRM processing: [ 140.535608] ================================================================ [ 140.543058] BUG: KASAN: stack-out-of-bounds in xfrm_state_find+0x17e4/0x1cc4 [ 140.550306] Read of size 4 at addr ffffffc0238a7a58 by task repro/5148 [ 140.557369] [ 140.558927] Call trace: [ 140.558936] dump_backtrace+0x0/0x388 [ 140.558940] show_stack+0x24/0x30 [ 140.558946] __dump_stack+0x24/0x2c [ 140.558949] dump_stack+0x8c/0xd0 [ 140.558956] print_address_description+0x74/0x234 [ 140.558960] kasan_report+0x240/0x264 [ 140.558963] __asan_report_load4_noabort+0x2c/0x38 [ 140.558967] xfrm_state_find+0x17e4/0x1cc4 [ 140.558971] xfrm_resolve_and_create_bundle+0x40c/0x1fb8 [ 140.558975] xfrm_lookup+0x238/0x1444 [ 140.558977] xfrm_lookup_route+0x48/0x11c [ 140.558984] ip_route_output_flow+0x88/0xc4 [ 140.558991] raw_sendmsg+0xa74/0x266c [ 140.558996] inet_sendmsg+0x258/0x3b0 [ 140.559002] sock_sendmsg+0xbc/0xec [ 140.559005] SyS_sendto+0x3a8/0x5a8 [ 140.559008] el0_svc_naked+0x34/0x38 [ 140.559009] [ 140.592245] page dumped because: kasan: bad access detected [ 140.597981] page_owner info is not active (free page?) [ 140.603267] [ 140.653503] ================================================================ Signed-off-by: Sean Tranchetti Signed-off-by: Steffen Klassert --- net/xfrm/xfrm_user.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 5151b3ebf068..d0672c400c2f 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -1455,6 +1455,9 @@ static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family) (ut[i].family != prev_family)) return -EINVAL; + if (ut[i].mode >= XFRM_MODE_MAX) + return -EINVAL; + prev_family = ut[i].family; switch (ut[i].family) { From 783f3b4e9ec50491c21746e7e05ec6c39c21f563 Mon Sep 17 00:00:00 2001 From: Bin Liu Date: Mon, 17 Sep 2018 11:40:22 -0500 Subject: [PATCH 1156/1762] usb: musb: dsps: do not disable CPPI41 irq in driver teardown TI AM335x CPPI 4.1 module uses a single register bit for CPPI interrupts in both musb controllers. So disabling the CPPI irq in one musb driver breaks the other musb module. Since musb is already disabled before tearing down dma controller in musb_remove(), it is safe to not disable CPPI irq in musb_dma_controller_destroy(). Fixes: 255348289f71 ("usb: musb: dsps: Manage CPPI 4.1 DMA interrupt in DSPS") Cc: stable@vger.kernel.org Signed-off-by: Bin Liu Signed-off-by: Greg Kroah-Hartman --- drivers/usb/musb/musb_dsps.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index df827ff57b0d..23a0df79ef21 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -658,16 +658,6 @@ dsps_dma_controller_create(struct musb *musb, void __iomem *base) return controller; } -static void dsps_dma_controller_destroy(struct dma_controller *c) -{ - struct musb *musb = c->musb; - struct dsps_glue *glue = dev_get_drvdata(musb->controller->parent); - void __iomem *usbss_base = glue->usbss_base; - - musb_writel(usbss_base, USBSS_IRQ_CLEARR, USBSS_IRQ_PD_COMP); - cppi41_dma_controller_destroy(c); -} - #ifdef CONFIG_PM_SLEEP static void dsps_dma_controller_suspend(struct dsps_glue *glue) { @@ -697,7 +687,7 @@ static struct musb_platform_ops dsps_ops = { #ifdef CONFIG_USB_TI_CPPI41_DMA .dma_init = dsps_dma_controller_create, - .dma_exit = dsps_dma_controller_destroy, + .dma_exit = cppi41_dma_controller_destroy, #endif .enable = dsps_musb_enable, .disable = dsps_musb_disable, From e871db8d78df1c411032cbb3acfdf8930509360e Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Tue, 11 Sep 2018 10:00:44 +0200 Subject: [PATCH 1157/1762] Revert "usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()" This reverts commit 6e22e3af7bb3a7b9dc53cb4687659f6e63fca427. The bug the patch describes to, has been already fixed in commit 2df6948428542 ("USB: cdc-wdm: don't enable interrupts in USB-giveback") so need to this, revert it. Fixes: 6e22e3af7bb3 ("usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()") Cc: stable Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-wdm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 656d247819c9..bec581fb7c63 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -460,7 +460,7 @@ static int service_outstanding_interrupt(struct wdm_device *desc) set_bit(WDM_RESPONDING, &desc->flags); spin_unlock_irq(&desc->iuspin); - rv = usb_submit_urb(desc->response, GFP_ATOMIC); + rv = usb_submit_urb(desc->response, GFP_KERNEL); spin_lock_irq(&desc->iuspin); if (rv) { dev_err(&desc->intf->dev, From 7a68d9fb851012829c29e770621905529bd9490b Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Wed, 5 Sep 2018 12:07:02 +0200 Subject: [PATCH 1158/1762] USB: usbdevfs: sanitize flags more Requesting a ZERO_PACKET or not is sensible only for output. In the input direction the device decides. Likewise accepting short packets makes sense only for input. This allows operation with panic_on_warn without opening up a local DOS. Signed-off-by: Oliver Neukum Reported-by: syzbot+843efa30c8821bd69f53@syzkaller.appspotmail.com Fixes: 0cb54a3e47cb ("USB: debugging code shouldn't alter control flow") Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/devio.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 6ce77b33da61..263dd2f309fb 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1434,10 +1434,13 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb struct async *as = NULL; struct usb_ctrlrequest *dr = NULL; unsigned int u, totlen, isofrmlen; - int i, ret, is_in, num_sgs = 0, ifnum = -1; + int i, ret, num_sgs = 0, ifnum = -1; int number_of_packets = 0; unsigned int stream_id = 0; void *buf; + bool is_in; + bool allow_short = false; + bool allow_zero = false; unsigned long mask = USBDEVFS_URB_SHORT_NOT_OK | USBDEVFS_URB_BULK_CONTINUATION | USBDEVFS_URB_NO_FSBR | @@ -1471,6 +1474,8 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb u = 0; switch (uurb->type) { case USBDEVFS_URB_TYPE_CONTROL: + if (is_in) + allow_short = true; if (!usb_endpoint_xfer_control(&ep->desc)) return -EINVAL; /* min 8 byte setup packet */ @@ -1511,6 +1516,10 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb break; case USBDEVFS_URB_TYPE_BULK: + if (!is_in) + allow_zero = true; + else + allow_short = true; switch (usb_endpoint_type(&ep->desc)) { case USB_ENDPOINT_XFER_CONTROL: case USB_ENDPOINT_XFER_ISOC: @@ -1531,6 +1540,10 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb if (!usb_endpoint_xfer_int(&ep->desc)) return -EINVAL; interrupt_urb: + if (!is_in) + allow_zero = true; + else + allow_short = true; break; case USBDEVFS_URB_TYPE_ISO: @@ -1676,9 +1689,9 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb u = (is_in ? URB_DIR_IN : URB_DIR_OUT); if (uurb->flags & USBDEVFS_URB_ISO_ASAP) u |= URB_ISO_ASAP; - if (uurb->flags & USBDEVFS_URB_SHORT_NOT_OK && is_in) + if (allow_short && uurb->flags & USBDEVFS_URB_SHORT_NOT_OK) u |= URB_SHORT_NOT_OK; - if (uurb->flags & USBDEVFS_URB_ZERO_PACKET) + if (allow_zero && uurb->flags & USBDEVFS_URB_ZERO_PACKET) u |= URB_ZERO_PACKET; if (uurb->flags & USBDEVFS_URB_NO_INTERRUPT) u |= URB_NO_INTERRUPT; From 81e0403b26d94360abd1f6a57311337973bc82cd Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Wed, 5 Sep 2018 12:07:03 +0200 Subject: [PATCH 1159/1762] USB: usbdevfs: restore warning for nonsensical flags If we filter flags before they reach the core we need to generate our own warnings. Signed-off-by: Oliver Neukum Fixes: 0cb54a3e47cb ("USB: debugging code shouldn't alter control flow") Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/devio.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 263dd2f309fb..244417d0dfd1 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1697,6 +1697,11 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb u |= URB_NO_INTERRUPT; as->urb->transfer_flags = u; + if (!allow_short && uurb->flags & USBDEVFS_URB_SHORT_NOT_OK) + dev_warn(&ps->dev->dev, "Requested nonsensical USBDEVFS_URB_SHORT_NOT_OK.\n"); + if (!allow_zero && uurb->flags & USBDEVFS_URB_ZERO_PACKET) + dev_warn(&ps->dev->dev, "Requested nonsensical USBDEVFS_URB_ZERO_PACKET.\n"); + as->urb->transfer_buffer_length = uurb->buffer_length; as->urb->setup_packet = (unsigned char *)dr; dr = NULL; From c183813fcee44a249339b7c46e1ad271ca1870aa Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 10 Sep 2018 13:58:51 -0400 Subject: [PATCH 1160/1762] USB: remove LPM management from usb_driver_claim_interface() usb_driver_claim_interface() disables and re-enables Link Power Management, but it shouldn't do either one, for the reasons listed below. This patch removes the two LPM-related function calls from the routine. The reason for disabling LPM in the analogous function usb_probe_interface() is so that drivers won't have to deal with unwanted LPM transitions in their probe routine. But usb_driver_claim_interface() doesn't call the driver's probe routine (or any other callbacks), so that reason doesn't apply here. Furthermore, no driver other than usbfs will ever call usb_driver_claim_interface() unless it is already bound to another interface in the same device, which means disabling LPM here would be redundant. usbfs doesn't interact with LPM at all. Lastly, the error return from usb_unlocked_disable_lpm() isn't handled properly; the code doesn't clean up its earlier actions before returning. Signed-off-by: Alan Stern Fixes: 8306095fd2c1 ("USB: Disable USB 3.0 LPM in critical sections.") CC: Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/driver.c | 15 --------------- 1 file changed, 15 deletions(-) diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index e76e95f62f76..7652dcb57998 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -512,7 +512,6 @@ int usb_driver_claim_interface(struct usb_driver *driver, struct device *dev; struct usb_device *udev; int retval = 0; - int lpm_disable_error = -ENODEV; if (!iface) return -ENODEV; @@ -533,16 +532,6 @@ int usb_driver_claim_interface(struct usb_driver *driver, iface->condition = USB_INTERFACE_BOUND; - /* See the comment about disabling LPM in usb_probe_interface(). */ - if (driver->disable_hub_initiated_lpm) { - lpm_disable_error = usb_unlocked_disable_lpm(udev); - if (lpm_disable_error) { - dev_err(&iface->dev, "%s Failed to disable LPM for driver %s\n", - __func__, driver->name); - return -ENOMEM; - } - } - /* Claimed interfaces are initially inactive (suspended) and * runtime-PM-enabled, but only if the driver has autosuspend * support. Otherwise they are marked active, to prevent the @@ -561,10 +550,6 @@ int usb_driver_claim_interface(struct usb_driver *driver, if (device_is_registered(dev)) retval = device_bind_driver(dev); - /* Attempt to re-enable USB3 LPM, if the disable was successful. */ - if (!lpm_disable_error) - usb_unlocked_enable_lpm(udev); - return retval; } EXPORT_SYMBOL_GPL(usb_driver_claim_interface); From bd729f9d67aa9a303d8925bb8c4f06af25f407d1 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 10 Sep 2018 13:59:59 -0400 Subject: [PATCH 1161/1762] USB: fix error handling in usb_driver_claim_interface() The syzbot fuzzing project found a use-after-free bug in the USB core. The bug was caused by usbfs not unbinding from an interface when the USB device file was closed, which led another process to attempt the unbind later on, after the private data structure had been deallocated. The reason usbfs did not unbind the interface at the appropriate time was because it thought the interface had never been claimed in the first place. This was caused by the fact that usb_driver_claim_interface() does not clean up properly when device_bind_driver() returns an error. Although the error code gets passed back to the caller, the iface->dev.driver pointer remains set and iface->condition remains equal to USB_INTERFACE_BOUND. This patch adds proper error handling to usb_driver_claim_interface(). Signed-off-by: Alan Stern Reported-by: syzbot+f84aa7209ccec829536f@syzkaller.appspotmail.com CC: Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/driver.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 7652dcb57998..a1f225f077cd 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -550,6 +550,21 @@ int usb_driver_claim_interface(struct usb_driver *driver, if (device_is_registered(dev)) retval = device_bind_driver(dev); + if (retval) { + dev->driver = NULL; + usb_set_intfdata(iface, NULL); + iface->needs_remote_wakeup = 0; + iface->condition = USB_INTERFACE_UNBOUND; + + /* + * Unbound interfaces are always runtime-PM-disabled + * and runtime-PM-suspended + */ + if (driver->supports_autosuspend) + pm_runtime_disable(dev); + pm_runtime_set_suspended(dev); + } + return retval; } EXPORT_SYMBOL_GPL(usb_driver_claim_interface); From c9a4cb204e9eb7fa7dfbe3f7d3a674fa530aa193 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 10 Sep 2018 14:00:53 -0400 Subject: [PATCH 1162/1762] USB: handle NULL config in usb_find_alt_setting() usb_find_alt_setting() takes a pointer to a struct usb_host_config as an argument; it searches for an interface with specified interface and alternate setting numbers in that config. However, it crashes if the usb_host_config pointer argument is NULL. Since this is a general-purpose routine, available for use in many places, we want to to be more robust. This patch makes it return NULL whenever the config argument is NULL. Signed-off-by: Alan Stern Reported-by: syzbot+19c3aaef85a89d451eac@syzkaller.appspotmail.com CC: Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/usb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 623be3174fb3..79d8bd7a612e 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -228,6 +228,8 @@ struct usb_host_interface *usb_find_alt_setting( struct usb_interface_cache *intf_cache = NULL; int i; + if (!config) + return NULL; for (i = 0; i < config->desc.bNumInterfaces; i++) { if (config->intf_cache[i]->altsetting[0].desc.bInterfaceNumber == iface_num) { From 85682a7e3b9c664995ad477520f917039afdc330 Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Mon, 10 Sep 2018 06:09:04 +0000 Subject: [PATCH 1163/1762] powerpc: fix csum_ipv6_magic() on little endian platforms On little endian platforms, csum_ipv6_magic() keeps len and proto in CPU byte order. This generates a bad results leading to ICMPv6 packets from other hosts being dropped by powerpc64le platforms. In order to fix this, len and proto should be converted to network byte order ie bigendian byte order. However checksumming 0x12345678 and 0x56341278 provide the exact same result so it is enough to rotate the sum of len and proto by 1 byte. PPC32 only support bigendian so the fix is needed for PPC64 only Fixes: e9c4943a107b ("powerpc: Implement csum_ipv6_magic in assembly") Reported-by: Jianlin Shi Reported-by: Xin Long Cc: # 4.18+ Signed-off-by: Christophe Leroy Tested-by: Xin Long Signed-off-by: Michael Ellerman --- arch/powerpc/lib/checksum_64.S | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/powerpc/lib/checksum_64.S b/arch/powerpc/lib/checksum_64.S index 886ed94b9c13..d05c8af4ac51 100644 --- a/arch/powerpc/lib/checksum_64.S +++ b/arch/powerpc/lib/checksum_64.S @@ -443,6 +443,9 @@ _GLOBAL(csum_ipv6_magic) addc r0, r8, r9 ld r10, 0(r4) ld r11, 8(r4) +#ifdef CONFIG_CPU_LITTLE_ENDIAN + rotldi r5, r5, 8 +#endif adde r0, r0, r10 add r5, r5, r7 adde r0, r0, r11 From 55a5542a546238354d1f209f794414168cf8c71d Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Mon, 10 Sep 2018 18:03:29 +0200 Subject: [PATCH 1164/1762] s390/hibernate: fix error handling when suspend cpu != resume cpu The resume code checks if the resume cpu is the same as the suspend cpu. If not, and if it is also not possible to switch to the suspend cpu, an error message should be printed and the resume process should be stopped by loading a disabled wait psw. The current logic is broken in multiple ways, the message is never printed, and the disabled wait psw never loaded because the kernel panics before that: - sam31 and SIGP_SET_ARCHITECTURE to ESA mode is wrong, this will break on the first 64bit instruction in sclp_early_printk(). - The init stack should be used, but the stack pointer is not set up correctly (missing aghi %r15,-STACK_FRAME_OVERHEAD). - __sclp_early_printk() checks the sclp_init_state. If it is not sclp_init_state_uninitialized, it simply returns w/o printing anything. In the resumed kernel however, sclp_init_state will never be uninitialized. This patch fixes those issues by removing the sam31/ESA logic, adding a correct init stack pointer, and also introducing sclp_early_printk_force() to allow using sclp_early_printk() even when sclp_init_state is not uninitialized. Reviewed-by: Heiko Carstens Signed-off-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/sclp.h | 3 ++- arch/s390/kernel/early_printk.c | 2 +- arch/s390/kernel/swsusp.S | 8 +++----- drivers/s390/char/sclp_early_core.c | 11 ++++++++--- 4 files changed, 14 insertions(+), 10 deletions(-) diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index 3cae9168f63c..e44a8d7959f5 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -108,7 +108,8 @@ int sclp_early_get_core_info(struct sclp_core_info *info); void sclp_early_get_ipl_info(struct sclp_ipl_info *info); void sclp_early_detect(void); void sclp_early_printk(const char *s); -void __sclp_early_printk(const char *s, unsigned int len); +void sclp_early_printk_force(const char *s); +void __sclp_early_printk(const char *s, unsigned int len, unsigned int force); int _sclp_get_core_info(struct sclp_core_info *info); int sclp_core_configure(u8 core); diff --git a/arch/s390/kernel/early_printk.c b/arch/s390/kernel/early_printk.c index 9431784d7796..40c1dfec944e 100644 --- a/arch/s390/kernel/early_printk.c +++ b/arch/s390/kernel/early_printk.c @@ -10,7 +10,7 @@ static void sclp_early_write(struct console *con, const char *s, unsigned int len) { - __sclp_early_printk(s, len); + __sclp_early_printk(s, len, 0); } static struct console sclp_early_console = { diff --git a/arch/s390/kernel/swsusp.S b/arch/s390/kernel/swsusp.S index a049a7b9d6e8..c1a080b11ae9 100644 --- a/arch/s390/kernel/swsusp.S +++ b/arch/s390/kernel/swsusp.S @@ -198,12 +198,10 @@ pgm_check_entry: /* Suspend CPU not available -> panic */ larl %r15,init_thread_union - ahi %r15,1<<(PAGE_SHIFT+THREAD_SIZE_ORDER) + aghi %r15,1<<(PAGE_SHIFT+THREAD_SIZE_ORDER) + aghi %r15,-STACK_FRAME_OVERHEAD larl %r2,.Lpanic_string - lghi %r1,0 - sam31 - sigp %r1,%r0,SIGP_SET_ARCHITECTURE - brasl %r14,sclp_early_printk + brasl %r14,sclp_early_printk_force larl %r3,.Ldisabled_wait_31 lpsw 0(%r3) 4: diff --git a/drivers/s390/char/sclp_early_core.c b/drivers/s390/char/sclp_early_core.c index eceba3858cef..2f61f5579aa5 100644 --- a/drivers/s390/char/sclp_early_core.c +++ b/drivers/s390/char/sclp_early_core.c @@ -210,11 +210,11 @@ static int sclp_early_setup(int disable, int *have_linemode, int *have_vt220) * Output one or more lines of text on the SCLP console (VT220 and / * or line-mode). */ -void __sclp_early_printk(const char *str, unsigned int len) +void __sclp_early_printk(const char *str, unsigned int len, unsigned int force) { int have_linemode, have_vt220; - if (sclp_init_state != sclp_init_state_uninitialized) + if (!force && sclp_init_state != sclp_init_state_uninitialized) return; if (sclp_early_setup(0, &have_linemode, &have_vt220) != 0) return; @@ -227,5 +227,10 @@ void __sclp_early_printk(const char *str, unsigned int len) void sclp_early_printk(const char *str) { - __sclp_early_printk(str, strlen(str)); + __sclp_early_printk(str, strlen(str), 0); +} + +void sclp_early_printk_force(const char *str) +{ + __sclp_early_printk(str, strlen(str), 1); } From 5c54fcac9a9de559b444ac63ec3cd82f1d157a0b Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Wed, 19 Sep 2018 10:58:05 +0300 Subject: [PATCH 1165/1762] usb: roles: Take care of driver module reference counting This fixes potential "BUG: unable to handle kernel paging request at ..." from happening. Fixes: fde0aa6c175a ("usb: common: Small class for USB role switches") Cc: Acked-by: Hans de Goede Tested-by: Hans de Goede Signed-off-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman --- drivers/usb/common/roles.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/usb/common/roles.c b/drivers/usb/common/roles.c index 15cc76e22123..99116af07f1d 100644 --- a/drivers/usb/common/roles.c +++ b/drivers/usb/common/roles.c @@ -109,8 +109,15 @@ static void *usb_role_switch_match(struct device_connection *con, int ep, */ struct usb_role_switch *usb_role_switch_get(struct device *dev) { - return device_connection_find_match(dev, "usb-role-switch", NULL, - usb_role_switch_match); + struct usb_role_switch *sw; + + sw = device_connection_find_match(dev, "usb-role-switch", NULL, + usb_role_switch_match); + + if (!IS_ERR_OR_NULL(sw)) + WARN_ON(!try_module_get(sw->dev.parent->driver->owner)); + + return sw; } EXPORT_SYMBOL_GPL(usb_role_switch_get); @@ -122,8 +129,10 @@ EXPORT_SYMBOL_GPL(usb_role_switch_get); */ void usb_role_switch_put(struct usb_role_switch *sw) { - if (!IS_ERR_OR_NULL(sw)) + if (!IS_ERR_OR_NULL(sw)) { put_device(&sw->dev); + module_put(sw->dev.parent->driver->owner); + } } EXPORT_SYMBOL_GPL(usb_role_switch_put); From 16c4cb19fa85c648a803752eb63cac0ef69231c2 Mon Sep 17 00:00:00 2001 From: Harry Pan Date: Fri, 14 Sep 2018 16:58:16 +0800 Subject: [PATCH 1166/1762] usb: core: safely deal with the dynamic quirk lists Applying dynamic usbcore quirks in early booting when the slab is not yet ready would cause kernel panic of null pointer dereference because the quirk_count has been counted as 1 while the quirk_list was failed to allocate. i.e., [ 1.044970] BUG: unable to handle kernel NULL pointer dereference at (null) [ 1.044995] IP: [] usb_detect_quirks+0x88/0xd1 [ 1.045016] PGD 0 [ 1.045026] Oops: 0000 [#1] PREEMPT SMP [ 1.046986] gsmi: Log Shutdown Reason 0x03 [ 1.046995] Modules linked in: [ 1.047008] CPU: 0 PID: 81 Comm: kworker/0:3 Not tainted 4.4.154 #28 [ 1.047016] Hardware name: Google Coral/Coral, BIOS Google_Coral.10068.27.0 12/04/2017 [ 1.047028] Workqueue: usb_hub_wq hub_event [ 1.047037] task: ffff88017a321c80 task.stack: ffff88017a384000 [ 1.047044] RIP: 0010:[] [] usb_detect_quirks+0x88/0xd1 To tackle this odd, let's balance the quirk_count to 0 when the kcalloc call fails, and defer the quirk setting into a lower level callback which ensures that the kernel memory management has been initialized. Fixes: 027bd6cafd9a ("usb: core: Add "quirks" parameter for usbcore") Signed-off-by: Harry Pan Acked-by: Kai-Heng Feng Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/quirks.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index e77dfe5ed5ec..178d6c6063c0 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -58,6 +58,7 @@ static int quirks_param_set(const char *val, const struct kernel_param *kp) quirk_list = kcalloc(quirk_count, sizeof(struct quirk_entry), GFP_KERNEL); if (!quirk_list) { + quirk_count = 0; mutex_unlock(&quirk_mutex); return -ENOMEM; } @@ -154,7 +155,7 @@ static struct kparam_string quirks_param_string = { .string = quirks_param, }; -module_param_cb(quirks, &quirks_param_ops, &quirks_param_string, 0644); +device_param_cb(quirks, &quirks_param_ops, &quirks_param_string, 0644); MODULE_PARM_DESC(quirks, "Add/modify USB quirks by specifying quirks=vendorID:productID:quirks"); /* Lists of quirky USB devices, split in device quirks and interface quirks. From 3e3b81965cbfa01fda6d77750feedc3c46fc28d0 Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Wed, 19 Sep 2018 10:58:04 +0300 Subject: [PATCH 1167/1762] usb: typec: mux: Take care of driver module reference counting Functions typec_mux_get() and typec_switch_get() already make sure that the mux device reference count is incremented, but the same must be done to the driver module as well to prevent the drivers from being unloaded in the middle of operation. This fixes a potential "BUG: unable to handle kernel paging request at ..." from happening. Fixes: 93dd2112c7b2 ("usb: typec: mux: Get the mux identifier from function parameter") Acked-by: Hans de Goede Tested-by: Hans de Goede Signed-off-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/mux.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c index ddaac63ecf12..d990aa510fab 100644 --- a/drivers/usb/typec/mux.c +++ b/drivers/usb/typec/mux.c @@ -9,6 +9,7 @@ #include #include +#include #include #include @@ -49,8 +50,10 @@ struct typec_switch *typec_switch_get(struct device *dev) mutex_lock(&switch_lock); sw = device_connection_find_match(dev, "typec-switch", NULL, typec_switch_match); - if (!IS_ERR_OR_NULL(sw)) + if (!IS_ERR_OR_NULL(sw)) { + WARN_ON(!try_module_get(sw->dev->driver->owner)); get_device(sw->dev); + } mutex_unlock(&switch_lock); return sw; @@ -65,8 +68,10 @@ EXPORT_SYMBOL_GPL(typec_switch_get); */ void typec_switch_put(struct typec_switch *sw) { - if (!IS_ERR_OR_NULL(sw)) + if (!IS_ERR_OR_NULL(sw)) { + module_put(sw->dev->driver->owner); put_device(sw->dev); + } } EXPORT_SYMBOL_GPL(typec_switch_put); @@ -136,8 +141,10 @@ struct typec_mux *typec_mux_get(struct device *dev, const char *name) mutex_lock(&mux_lock); mux = device_connection_find_match(dev, name, NULL, typec_mux_match); - if (!IS_ERR_OR_NULL(mux)) + if (!IS_ERR_OR_NULL(mux)) { + WARN_ON(!try_module_get(mux->dev->driver->owner)); get_device(mux->dev); + } mutex_unlock(&mux_lock); return mux; @@ -152,8 +159,10 @@ EXPORT_SYMBOL_GPL(typec_mux_get); */ void typec_mux_put(struct typec_mux *mux) { - if (!IS_ERR_OR_NULL(mux)) + if (!IS_ERR_OR_NULL(mux)) { + module_put(mux->dev->driver->owner); put_device(mux->dev); + } } EXPORT_SYMBOL_GPL(typec_mux_put); From 2823c8716c687d6c7e261a3a02b3cab43809fe9c Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Mon, 27 Aug 2018 10:34:07 -0500 Subject: [PATCH 1168/1762] b43: fix DMA error related regression with proprietary firmware In commit 66cffd6daab7 ("b43: fix transmit failure when VT is switched"), a condition is noted where the network controller needs to be reset. Note that this situation happens when running the open-source firmware (http://netweb.ing.unibs.it/~openfwwf/), plus a number of other special conditions. for a different card model, it is reported that this change breaks operation running the proprietary firmware (https://marc.info/?l=linux-wireless&m=153504546924558&w=2). Rather than reverting the previous patch, the code is tweaked to avoid the reset unless the open-source firmware is being used. Fixes: 66cffd6daab7 ("b43: fix transmit failure when VT is switched") Cc: Stable # 4.18+ Cc: Taketo Kabe Reported-and-tested-by: D. Prabhu Signed-off-by: Larry Finger Signed-off-by: Kalle Valo --- drivers/net/wireless/broadcom/b43/dma.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/broadcom/b43/dma.c b/drivers/net/wireless/broadcom/b43/dma.c index 6b0e1ec346cb..d46d57b989ae 100644 --- a/drivers/net/wireless/broadcom/b43/dma.c +++ b/drivers/net/wireless/broadcom/b43/dma.c @@ -1518,13 +1518,15 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev, } } else { /* More than a single header/data pair were missed. - * Report this error, and reset the controller to + * Report this error. If running with open-source + * firmware, then reset the controller to * revive operation. */ b43dbg(dev->wl, "Out of order TX status report on DMA ring %d. Expected %d, but got %d\n", ring->index, firstused, slot); - b43_controller_restart(dev, "Out of order TX"); + if (dev->fw.opensource) + b43_controller_restart(dev, "Out of order TX"); return; } } From c716a25b9b70084e1144f77423f5aedd772ea478 Mon Sep 17 00:00:00 2001 From: Thiago Jung Bauermann Date: Thu, 20 Sep 2018 01:38:58 -0300 Subject: [PATCH 1169/1762] powerpc/pkeys: Fix reading of ibm, processor-storage-keys property scan_pkey_feature() uses of_property_read_u32_array() to read the ibm,processor-storage-keys property and calls be32_to_cpu() on the value it gets. The problem is that of_property_read_u32_array() already returns the value converted to the CPU byte order. The value of pkeys_total ends up more or less sane because there's a min() call in pkey_initialize() which reduces pkeys_total to 32. So in practice the kernel ignores the fact that the hypervisor reserved one key for itself (the device tree advertises 31 keys in my test VM). This is wrong, but the effect in practice is that when a process tries to allocate the 32nd key, it gets an -EINVAL error instead of -ENOSPC which would indicate that there aren't any keys available Fixes: cf43d3b26452 ("powerpc: Enable pkey subsystem") Cc: stable@vger.kernel.org # v4.16+ Signed-off-by: Thiago Jung Bauermann Signed-off-by: Michael Ellerman --- arch/powerpc/mm/pkeys.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/mm/pkeys.c b/arch/powerpc/mm/pkeys.c index 333b1f80c435..b271b283c785 100644 --- a/arch/powerpc/mm/pkeys.c +++ b/arch/powerpc/mm/pkeys.c @@ -45,7 +45,7 @@ static void scan_pkey_feature(void) * Since any pkey can be used for data or execute, we will just treat * all keys as equal and track them as one entity. */ - pkeys_total = be32_to_cpu(vals[0]); + pkeys_total = vals[0]; pkeys_devtree_defined = true; } From 7e620984b62532783912312e334f3c48cdacbd5d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Thu, 20 Sep 2018 14:11:17 +0200 Subject: [PATCH 1170/1762] serial: imx: restore handshaking irq for imx1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Back in 2015 when irda was dropped from the driver imx1 was broken. This change reintroduces the support for the third interrupt of the UART. Fixes: afe9cbb1a6ad ("serial: imx: drop support for IRDA") Cc: stable Signed-off-by: Uwe Kleine-König Reviewed-by: Leonard Crestez Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/imx.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 239c0fa2e981..0f67197a3783 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -2351,6 +2351,14 @@ static int imx_uart_probe(struct platform_device *pdev) ret); return ret; } + + ret = devm_request_irq(&pdev->dev, rtsirq, imx_uart_rtsint, 0, + dev_name(&pdev->dev), sport); + if (ret) { + dev_err(&pdev->dev, "failed to request rts irq: %d\n", + ret); + return ret; + } } else { ret = devm_request_irq(&pdev->dev, rxirq, imx_uart_int, 0, dev_name(&pdev->dev), sport); From d124b44f09cab67fc6da4a4513417e3e54b01efc Mon Sep 17 00:00:00 2001 From: Miguel Ojeda Date: Tue, 18 Sep 2018 18:55:41 +0200 Subject: [PATCH 1171/1762] Compiler Attributes: naked was fixed in gcc 4.6 Commit 9c695203a7dd ("compiler-gcc.h: gcc-4.5 needs noclone and noinline on __naked functions") added noinline and noclone as a workaround for a gcc 4.5 bug, which was resolved in 4.6.0. Since now the minimum gcc supported version is 4.6, we can clean it up. See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44290 and https://godbolt.org/z/h6NMIL Fixes: 815f0ddb346c ("include/linux/compiler*.h: make compiler-*.h mutually exclusive") Cc: Rasmus Villemoes Cc: Eli Friedman Cc: Christopher Li Cc: Kees Cook Cc: Ingo Molnar Cc: Geert Uytterhoeven Cc: Arnd Bergmann Cc: Greg Kroah-Hartman Cc: Masahiro Yamada Cc: Joe Perches Cc: Dominique Martinet Cc: Linus Torvalds Cc: linux-sparse@vger.kernel.org Tested-by: Stefan Agner Reviewed-by: Stefan Agner Reviewed-by: Luc Van Oostenryck Reviewed-by: Nick Desaulniers Signed-off-by: Miguel Ojeda Signed-off-by: Greg Kroah-Hartman --- include/linux/compiler-gcc.h | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h index 763bbad1e258..25d3dd6b2702 100644 --- a/include/linux/compiler-gcc.h +++ b/include/linux/compiler-gcc.h @@ -84,14 +84,8 @@ * to trace naked functions because then mcount is called without * stack and frame pointer being set up and there is no chance to * restore the lr register to the value before mcount was called. - * - * The asm() bodies of naked functions often depend on standard calling - * conventions, therefore they must be noinline and noclone. - * - * GCC 4.[56] currently fail to enforce this, so we must do so ourselves. - * See GCC PR44290. */ -#define __naked __attribute__((naked)) noinline __noclone notrace +#define __naked __attribute__((naked)) notrace #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__) From ae596de1a0c8c2c924dc99d23c026259372ab234 Mon Sep 17 00:00:00 2001 From: Miguel Ojeda Date: Tue, 18 Sep 2018 18:55:42 +0200 Subject: [PATCH 1172/1762] Compiler Attributes: naked can be shared The naked attribute is supported by at least gcc >= 4.6 (for ARM, which is the only current user), gcc >= 8 (for x86), clang >= 3.1 and icc >= 13. See https://godbolt.org/z/350Dyc Therefore, move it out of compiler-gcc.h so that the definition is shared by all compilers. This also fixes Clang support for ARM32 --- 815f0ddb346c ("include/linux/compiler*.h: make compiler-*.h mutually exclusive"). Fixes: 815f0ddb346c ("include/linux/compiler*.h: make compiler-*.h mutually exclusive") Cc: Rasmus Villemoes Cc: Eli Friedman Cc: Christopher Li Cc: Kees Cook Cc: Ingo Molnar Cc: Geert Uytterhoeven Cc: Greg Kroah-Hartman Cc: Masahiro Yamada Cc: Joe Perches Cc: Dominique Martinet Cc: Linus Torvalds Cc: linux-sparse@vger.kernel.org Suggested-by: Arnd Bergmann Tested-by: Stefan Agner Reviewed-by: Stefan Agner Reviewed-by: Luc Van Oostenryck Reviewed-by: Nick Desaulniers Signed-off-by: Miguel Ojeda Signed-off-by: Greg Kroah-Hartman --- include/linux/compiler-gcc.h | 8 -------- include/linux/compiler_types.h | 8 ++++++++ 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h index 25d3dd6b2702..4d36b27214fd 100644 --- a/include/linux/compiler-gcc.h +++ b/include/linux/compiler-gcc.h @@ -79,14 +79,6 @@ #define __noretpoline __attribute__((indirect_branch("keep"))) #endif -/* - * it doesn't make sense on ARM (currently the only user of __naked) - * to trace naked functions because then mcount is called without - * stack and frame pointer being set up and there is no chance to - * restore the lr register to the value before mcount was called. - */ -#define __naked __attribute__((naked)) notrace - #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__) #define __optimize(level) __attribute__((__optimize__(level))) diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h index 3525c179698c..db192becfec4 100644 --- a/include/linux/compiler_types.h +++ b/include/linux/compiler_types.h @@ -226,6 +226,14 @@ struct ftrace_likely_data { #define notrace __attribute__((no_instrument_function)) #endif +/* + * it doesn't make sense on ARM (currently the only user of __naked) + * to trace naked functions because then mcount is called without + * stack and frame pointer being set up and there is no chance to + * restore the lr register to the value before mcount was called. + */ +#define __naked __attribute__((naked)) notrace + #define __compiler_offsetof(a, b) __builtin_offsetof(a, b) /* From 7ce5c8cd753f9afa8e79e9ec40351998e354f239 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Thu, 20 Sep 2018 08:30:55 -0600 Subject: [PATCH 1173/1762] libata: mask swap internal and hardware tag hen we're comparing the hardware completion mask passed in from the driver with the internal tag pending mask, we need to account for the fact that the internal tag is different from the hardware tag. If not, then we can end up either prematurely completing the internal tag (since it's not set in the hw mask), or simply flag an error: ata2: illegal qc_active transition (100000000->00000001) If the internal tag is set, then swap that with the hardware tag in this case before comparing with what the hardware reports. Fixes: 28361c403683 ("libata: add extra internal command") Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=201151 Cc: stable@vger.kernel.org Reported-by: Paul Sbarra Tested-by: Paul Sbarra Signed-off-by: Jens Axboe --- drivers/ata/libata-core.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 172e32840256..3893f9bde1e6 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -5359,10 +5359,20 @@ void ata_qc_complete(struct ata_queued_cmd *qc) */ int ata_qc_complete_multiple(struct ata_port *ap, u64 qc_active) { + u64 done_mask, ap_qc_active = ap->qc_active; int nr_done = 0; - u64 done_mask; - done_mask = ap->qc_active ^ qc_active; + /* + * If the internal tag is set on ap->qc_active, then we care about + * bit0 on the passed in qc_active mask. Move that bit up to match + * the internal tag. + */ + if (ap_qc_active & (1ULL << ATA_TAG_INTERNAL)) { + qc_active |= (qc_active & 0x01) << ATA_TAG_INTERNAL; + qc_active ^= qc_active & 0x01; + } + + done_mask = ap_qc_active ^ qc_active; if (unlikely(done_mask & qc_active)) { ata_port_err(ap, "illegal qc_active transition (%08llx->%08llx)\n", From f9d5b1d50840320fb6c66fafd1a532a995fc3758 Mon Sep 17 00:00:00 2001 From: Petr Machata Date: Thu, 20 Sep 2018 09:31:45 +0300 Subject: [PATCH 1174/1762] mlxsw: spectrum: Bump required firmware version MC-aware mode was introduced to mlxsw in commit 7b8195306694 ("mlxsw: spectrum: Configure MC-aware mode on mlxsw ports") and fixed up later in commit 3a3539cd3632 ("mlxsw: spectrum_buffers: Set up a dedicated pool for BUM traffic"). As the final piece of puzzle, a firmware issue whereby a wrong priority was assigned to BUM traffic was corrected in FW version 13.1703.4. Therefore require this FW version in the driver. Fixes: 7b8195306694 ("mlxsw: spectrum: Configure MC-aware mode on mlxsw ports") Signed-off-by: Petr Machata Reviewed-by: Jiri Pirko Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 930700413b1d..b492152c8881 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -44,8 +44,8 @@ #define MLXSW_SP_FWREV_MINOR_TO_BRANCH(minor) ((minor) / 100) #define MLXSW_SP1_FWREV_MAJOR 13 -#define MLXSW_SP1_FWREV_MINOR 1702 -#define MLXSW_SP1_FWREV_SUBMINOR 6 +#define MLXSW_SP1_FWREV_MINOR 1703 +#define MLXSW_SP1_FWREV_SUBMINOR 4 #define MLXSW_SP1_FWREV_CAN_RESET_MINOR 1702 static const struct mlxsw_fw_rev mlxsw_sp1_fw_rev = { From 56ce3c5a50f4d8cc95361b1ec7f152006c6320d8 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 20 Sep 2018 09:27:30 +0200 Subject: [PATCH 1175/1762] smc: generic netlink family should be __ro_after_init The generic netlink family is only initialized during module init, so it should be __ro_after_init like all other generic netlink families. Signed-off-by: Johannes Berg Signed-off-by: David S. Miller --- net/smc/smc_pnet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/smc/smc_pnet.c b/net/smc/smc_pnet.c index 01c6ce042a1c..7cb3e4f07c10 100644 --- a/net/smc/smc_pnet.c +++ b/net/smc/smc_pnet.c @@ -461,7 +461,7 @@ static const struct genl_ops smc_pnet_ops[] = { }; /* SMC_PNETID family definition */ -static struct genl_family smc_pnet_nl_family = { +static struct genl_family smc_pnet_nl_family __ro_after_init = { .hdrsize = 0, .name = SMCR_GENL_FAMILY_NAME, .version = SMCR_GENL_FAMILY_VERSION, From 65eea8edc315589d6c993cf12dbb5d0e9ef1fe4e Mon Sep 17 00:00:00 2001 From: Andy Whitcroft Date: Thu, 20 Sep 2018 09:09:48 -0600 Subject: [PATCH 1176/1762] floppy: Do not copy a kernel pointer to user memory in FDGETPRM ioctl The final field of a floppy_struct is the field "name", which is a pointer to a string in kernel memory. The kernel pointer should not be copied to user memory. The FDGETPRM ioctl copies a floppy_struct to user memory, including this "name" field. This pointer cannot be used by the user and it will leak a kernel address to user-space, which will reveal the location of kernel code and data and undermine KASLR protection. Model this code after the compat ioctl which copies the returned data to a previously cleared temporary structure on the stack (excluding the name pointer) and copy out to userspace from there. As we already have an inparam union with an appropriate member and that memory is already cleared even for read only calls make use of that as a temporary store. Based on an initial patch by Brian Belleville. CVE-2018-7755 Signed-off-by: Andy Whitcroft Broke up long line. Signed-off-by: Jens Axboe --- drivers/block/floppy.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 48f622728ce6..f2b6f4da1034 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -3467,6 +3467,9 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int (struct floppy_struct **)&outparam); if (ret) return ret; + memcpy(&inparam.g, outparam, + offsetof(struct floppy_struct, name)); + outparam = &inparam.g; break; case FDMSGON: UDP->flags |= FTD_MSG; From 96147db1e1dff83679e71ac92193cbcab761a14c Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Tue, 18 Sep 2018 18:36:21 +0300 Subject: [PATCH 1177/1762] pinctrl: intel: Do pin translation in other GPIO operations as well For some reason I thought GPIOLIB handles translation from GPIO ranges to pinctrl pins but it turns out not to be the case. This means that when GPIOs operations are performed for a pin controller having a custom GPIO base such as Cannon Lake and Ice Lake incorrect pin number gets used internally. Fix this in the same way we did for lock/unlock IRQ operations and translate the GPIO number to pin before using it. Fixes: a60eac3239f0 ("pinctrl: intel: Allow custom GPIO base for pad groups") Reported-by: Rajat Jain Signed-off-by: Mika Westerberg Tested-by: Rajat Jain Signed-off-by: Linus Walleij --- drivers/pinctrl/intel/pinctrl-intel.c | 175 ++++++++++++++------------ 1 file changed, 95 insertions(+), 80 deletions(-) diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index 62b009b27eda..ec8dafc94694 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -747,86 +747,6 @@ static const struct pinctrl_desc intel_pinctrl_desc = { .owner = THIS_MODULE, }; -static int intel_gpio_get(struct gpio_chip *chip, unsigned offset) -{ - struct intel_pinctrl *pctrl = gpiochip_get_data(chip); - void __iomem *reg; - u32 padcfg0; - - reg = intel_get_padcfg(pctrl, offset, PADCFG0); - if (!reg) - return -EINVAL; - - padcfg0 = readl(reg); - if (!(padcfg0 & PADCFG0_GPIOTXDIS)) - return !!(padcfg0 & PADCFG0_GPIOTXSTATE); - - return !!(padcfg0 & PADCFG0_GPIORXSTATE); -} - -static void intel_gpio_set(struct gpio_chip *chip, unsigned offset, int value) -{ - struct intel_pinctrl *pctrl = gpiochip_get_data(chip); - unsigned long flags; - void __iomem *reg; - u32 padcfg0; - - reg = intel_get_padcfg(pctrl, offset, PADCFG0); - if (!reg) - return; - - raw_spin_lock_irqsave(&pctrl->lock, flags); - padcfg0 = readl(reg); - if (value) - padcfg0 |= PADCFG0_GPIOTXSTATE; - else - padcfg0 &= ~PADCFG0_GPIOTXSTATE; - writel(padcfg0, reg); - raw_spin_unlock_irqrestore(&pctrl->lock, flags); -} - -static int intel_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) -{ - struct intel_pinctrl *pctrl = gpiochip_get_data(chip); - void __iomem *reg; - u32 padcfg0; - - reg = intel_get_padcfg(pctrl, offset, PADCFG0); - if (!reg) - return -EINVAL; - - padcfg0 = readl(reg); - - if (padcfg0 & PADCFG0_PMODE_MASK) - return -EINVAL; - - return !!(padcfg0 & PADCFG0_GPIOTXDIS); -} - -static int intel_gpio_direction_input(struct gpio_chip *chip, unsigned offset) -{ - return pinctrl_gpio_direction_input(chip->base + offset); -} - -static int intel_gpio_direction_output(struct gpio_chip *chip, unsigned offset, - int value) -{ - intel_gpio_set(chip, offset, value); - return pinctrl_gpio_direction_output(chip->base + offset); -} - -static const struct gpio_chip intel_gpio_chip = { - .owner = THIS_MODULE, - .request = gpiochip_generic_request, - .free = gpiochip_generic_free, - .get_direction = intel_gpio_get_direction, - .direction_input = intel_gpio_direction_input, - .direction_output = intel_gpio_direction_output, - .get = intel_gpio_get, - .set = intel_gpio_set, - .set_config = gpiochip_generic_config, -}; - /** * intel_gpio_to_pin() - Translate from GPIO offset to pin number * @pctrl: Pinctrl structure @@ -872,6 +792,101 @@ static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned offset, return -EINVAL; } +static int intel_gpio_get(struct gpio_chip *chip, unsigned offset) +{ + struct intel_pinctrl *pctrl = gpiochip_get_data(chip); + void __iomem *reg; + u32 padcfg0; + int pin; + + pin = intel_gpio_to_pin(pctrl, offset, NULL, NULL); + if (pin < 0) + return -EINVAL; + + reg = intel_get_padcfg(pctrl, pin, PADCFG0); + if (!reg) + return -EINVAL; + + padcfg0 = readl(reg); + if (!(padcfg0 & PADCFG0_GPIOTXDIS)) + return !!(padcfg0 & PADCFG0_GPIOTXSTATE); + + return !!(padcfg0 & PADCFG0_GPIORXSTATE); +} + +static void intel_gpio_set(struct gpio_chip *chip, unsigned offset, int value) +{ + struct intel_pinctrl *pctrl = gpiochip_get_data(chip); + unsigned long flags; + void __iomem *reg; + u32 padcfg0; + int pin; + + pin = intel_gpio_to_pin(pctrl, offset, NULL, NULL); + if (pin < 0) + return; + + reg = intel_get_padcfg(pctrl, pin, PADCFG0); + if (!reg) + return; + + raw_spin_lock_irqsave(&pctrl->lock, flags); + padcfg0 = readl(reg); + if (value) + padcfg0 |= PADCFG0_GPIOTXSTATE; + else + padcfg0 &= ~PADCFG0_GPIOTXSTATE; + writel(padcfg0, reg); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); +} + +static int intel_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) +{ + struct intel_pinctrl *pctrl = gpiochip_get_data(chip); + void __iomem *reg; + u32 padcfg0; + int pin; + + pin = intel_gpio_to_pin(pctrl, offset, NULL, NULL); + if (pin < 0) + return -EINVAL; + + reg = intel_get_padcfg(pctrl, pin, PADCFG0); + if (!reg) + return -EINVAL; + + padcfg0 = readl(reg); + + if (padcfg0 & PADCFG0_PMODE_MASK) + return -EINVAL; + + return !!(padcfg0 & PADCFG0_GPIOTXDIS); +} + +static int intel_gpio_direction_input(struct gpio_chip *chip, unsigned offset) +{ + return pinctrl_gpio_direction_input(chip->base + offset); +} + +static int intel_gpio_direction_output(struct gpio_chip *chip, unsigned offset, + int value) +{ + intel_gpio_set(chip, offset, value); + return pinctrl_gpio_direction_output(chip->base + offset); +} + +static const struct gpio_chip intel_gpio_chip = { + .owner = THIS_MODULE, + .request = gpiochip_generic_request, + .free = gpiochip_generic_free, + .get_direction = intel_gpio_get_direction, + .direction_input = intel_gpio_direction_input, + .direction_output = intel_gpio_direction_output, + .get = intel_gpio_get, + .set = intel_gpio_set, + .set_config = gpiochip_generic_config, +}; + static int intel_gpio_irq_reqres(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); From caaa4c8a6be2a275bd14f2369ee364978ff74704 Mon Sep 17 00:00:00 2001 From: Amber Lin Date: Wed, 12 Sep 2018 21:42:18 -0400 Subject: [PATCH 1178/1762] drm/amdgpu: Fix SDMA HQD destroy error on gfx_v7 A wrong register bit was examinated for checking SDMA status so it reports false failures. This typo only appears on gfx_v7. gfx_v8 checks the correct bit. Acked-by: Alex Deucher Signed-off-by: Amber Lin Reviewed-by: Felix Kuehling Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c index ea3f698aef5e..9803b91f3e77 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c @@ -685,7 +685,7 @@ static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd, while (true) { temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS); - if (temp & SDMA0_STATUS_REG__RB_CMD_IDLE__SHIFT) + if (temp & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK) break; if (time_after(jiffies, end_jiffies)) return -ETIME; From 15426dbb65c5b37680d27e84d58a1ed3b8532518 Mon Sep 17 00:00:00 2001 From: Yong Zhao Date: Wed, 12 Sep 2018 21:42:19 -0400 Subject: [PATCH 1179/1762] drm/amdkfd: Change the control stack MTYPE from UC to NC on GFX9 CWSR fails on Raven if the control stack is MTYPE_UC, which is used for regular GART mappings. As a workaround we map it using MTYPE_NC. The MEC firmware expects the control stack at one page offset from the start of the MQD so it is part of the MQD allocation on GFXv9. AMDGPU added a memory allocation flag just for this purpose. Acked-by: Alex Deucher Signed-off-by: Yong Zhao Reviewed-by: Felix Kuehling Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 6 +++++- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 2 +- drivers/gpu/drm/amd/amdkfd/kfd_device.c | 3 ++- drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c | 2 +- drivers/gpu/drm/amd/include/kgd_kfd_interface.h | 2 +- 5 files changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c index f8bbbb3a9504..0c791e35acf0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c @@ -272,7 +272,7 @@ void amdgpu_amdkfd_gpu_reset(struct kgd_dev *kgd) int alloc_gtt_mem(struct kgd_dev *kgd, size_t size, void **mem_obj, uint64_t *gpu_addr, - void **cpu_ptr) + void **cpu_ptr, bool mqd_gfx9) { struct amdgpu_device *adev = (struct amdgpu_device *)kgd; struct amdgpu_bo *bo = NULL; @@ -287,6 +287,10 @@ int alloc_gtt_mem(struct kgd_dev *kgd, size_t size, bp.flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC; bp.type = ttm_bo_type_kernel; bp.resv = NULL; + + if (mqd_gfx9) + bp.flags |= AMDGPU_GEM_CREATE_MQD_GFX9; + r = amdgpu_bo_create(adev, &bp, &bo); if (r) { dev_err(adev->dev, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h index 2f379c183ed2..cc9aeab5468c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h @@ -136,7 +136,7 @@ void amdgpu_amdkfd_gpu_reset(struct kgd_dev *kgd); /* Shared API */ int alloc_gtt_mem(struct kgd_dev *kgd, size_t size, void **mem_obj, uint64_t *gpu_addr, - void **cpu_ptr); + void **cpu_ptr, bool mqd_gfx9); void free_gtt_mem(struct kgd_dev *kgd, void *mem_obj); void get_local_mem_info(struct kgd_dev *kgd, struct kfd_local_mem_info *mem_info); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index 1b048715ab8a..29ac74f40dce 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -457,7 +457,8 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd, if (kfd->kfd2kgd->init_gtt_mem_allocation( kfd->kgd, size, &kfd->gtt_mem, - &kfd->gtt_start_gpu_addr, &kfd->gtt_start_cpu_ptr)){ + &kfd->gtt_start_gpu_addr, &kfd->gtt_start_cpu_ptr, + false)) { dev_err(kfd_device, "Could not allocate %d bytes\n", size); goto out; } diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c index f5fc3675f21e..0cedb37cf513 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c @@ -88,7 +88,7 @@ static int init_mqd(struct mqd_manager *mm, void **mqd, ALIGN(sizeof(struct v9_mqd), PAGE_SIZE), &((*mqd_mem_obj)->gtt_mem), &((*mqd_mem_obj)->gpu_addr), - (void *)&((*mqd_mem_obj)->cpu_ptr)); + (void *)&((*mqd_mem_obj)->cpu_ptr), true); } else retval = kfd_gtt_sa_allocate(mm->dev, sizeof(struct v9_mqd), mqd_mem_obj); diff --git a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h index 14391b06080c..43b82e14007e 100644 --- a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h +++ b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h @@ -292,7 +292,7 @@ struct tile_config { struct kfd2kgd_calls { int (*init_gtt_mem_allocation)(struct kgd_dev *kgd, size_t size, void **mem_obj, uint64_t *gpu_addr, - void **cpu_ptr); + void **cpu_ptr, bool mqd_gfx9); void (*free_gtt_mem)(struct kgd_dev *kgd, void *mem_obj); From 44d8cc6f1a905e4bb1d4221a898abb0d7e9d100a Mon Sep 17 00:00:00 2001 From: Yong Zhao Date: Wed, 12 Sep 2018 21:42:20 -0400 Subject: [PATCH 1180/1762] drm/amdkfd: Fix ATS capablity was not reported correctly on some APUs Because CRAT_CU_FLAGS_IOMMU_PRESENT was not set in some BIOS crat, we need to workaround this. For future compatibility, we also overwrite the bit in capability according to the value of needs_iommu_device. Acked-by: Alex Deucher Signed-off-by: Yong Zhao Reviewed-by: Felix Kuehling Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdkfd/kfd_iommu.c | 13 ++++++++++++- drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 1 + drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 21 ++++++++++++++++----- 3 files changed, 29 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c b/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c index 7a61f38c09e6..01494752c36a 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c @@ -62,9 +62,20 @@ int kfd_iommu_device_init(struct kfd_dev *kfd) struct amd_iommu_device_info iommu_info; unsigned int pasid_limit; int err; + struct kfd_topology_device *top_dev; - if (!kfd->device_info->needs_iommu_device) + top_dev = kfd_topology_device_by_id(kfd->id); + + /* + * Overwrite ATS capability according to needs_iommu_device to fix + * potential missing corresponding bit in CRAT of BIOS. + */ + if (!kfd->device_info->needs_iommu_device) { + top_dev->node_props.capability &= ~HSA_CAP_ATS_PRESENT; return 0; + } + + top_dev->node_props.capability |= HSA_CAP_ATS_PRESENT; iommu_info.flags = 0; err = amd_iommu_device_info(kfd->pdev, &iommu_info); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index f971710f1c91..92b285ca73aa 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -806,6 +806,7 @@ int kfd_topology_add_device(struct kfd_dev *gpu); int kfd_topology_remove_device(struct kfd_dev *gpu); struct kfd_topology_device *kfd_topology_device_by_proximity_domain( uint32_t proximity_domain); +struct kfd_topology_device *kfd_topology_device_by_id(uint32_t gpu_id); struct kfd_dev *kfd_device_by_id(uint32_t gpu_id); struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev); int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_dev **kdev); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c index bc95d4dfee2e..80f5db4ef75f 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c @@ -63,22 +63,33 @@ struct kfd_topology_device *kfd_topology_device_by_proximity_domain( return device; } -struct kfd_dev *kfd_device_by_id(uint32_t gpu_id) +struct kfd_topology_device *kfd_topology_device_by_id(uint32_t gpu_id) { - struct kfd_topology_device *top_dev; - struct kfd_dev *device = NULL; + struct kfd_topology_device *top_dev = NULL; + struct kfd_topology_device *ret = NULL; down_read(&topology_lock); list_for_each_entry(top_dev, &topology_device_list, list) if (top_dev->gpu_id == gpu_id) { - device = top_dev->gpu; + ret = top_dev; break; } up_read(&topology_lock); - return device; + return ret; +} + +struct kfd_dev *kfd_device_by_id(uint32_t gpu_id) +{ + struct kfd_topology_device *top_dev; + + top_dev = kfd_topology_device_by_id(gpu_id); + if (!top_dev) + return NULL; + + return top_dev->gpu; } struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev) From fb6de923ca3358a91525552b4907d4cb38730bdd Mon Sep 17 00:00:00 2001 From: Yu Zhao Date: Wed, 19 Sep 2018 15:30:51 -0600 Subject: [PATCH 1181/1762] regulator: fix crash caused by null driver data dev_set_drvdata() needs to be called before device_register() exposes device to userspace. Otherwise kernel crashes after it gets null pointer from dev_get_drvdata() when userspace tries to access sysfs entries. [Removed backtrace for length -- broonie] Signed-off-by: Yu Zhao Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/regulator/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 90215f57270f..9577d8941846 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -4395,13 +4395,13 @@ regulator_register(const struct regulator_desc *regulator_desc, !rdev->desc->fixed_uV) rdev->is_switch = true; + dev_set_drvdata(&rdev->dev, rdev); ret = device_register(&rdev->dev); if (ret != 0) { put_device(&rdev->dev); goto unset_supplies; } - dev_set_drvdata(&rdev->dev, rdev); rdev_init_debugfs(rdev); /* try to resolve regulators supply since a new one was registered */ From d98627d1360d55e3b28f702caca8b6342c4a4e45 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Sun, 27 May 2018 22:42:55 +0100 Subject: [PATCH 1182/1762] drm/i2c: tda9950: fix timeout counter check Currently the check to see if the timeout has reached zero is incorrect and the check is instead checking if the timeout is non-zero and not zero, hence it will break out of the loop on the first iteration and the msleep is never executed. Fix this by breaking from the loop when timeout is zero. Detected by CoverityScan, CID#1469404 ("Logically Dead Code") Fixes: f0316f93897c ("drm/i2c: tda9950: add CEC driver") Signed-off-by: Colin Ian King Signed-off-by: Russell King --- drivers/gpu/drm/i2c/tda9950.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c index 3f7396caad48..f2186409f0cf 100644 --- a/drivers/gpu/drm/i2c/tda9950.c +++ b/drivers/gpu/drm/i2c/tda9950.c @@ -307,7 +307,7 @@ static void tda9950_release(struct tda9950_priv *priv) /* Wait up to .5s for it to signal non-busy */ do { csr = tda9950_read(client, REG_CSR); - if (!(csr & CSR_BUSY) || --timeout) + if (!(csr & CSR_BUSY) || !--timeout) break; msleep(10); } while (1); From e0dccce1193f87597548d0db6ecc942fb92c04cd Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 27 Aug 2018 14:28:50 +0200 Subject: [PATCH 1183/1762] drm/i2c: tda9950: set MAX_RETRIES for errors only The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to prevent the CEC framework from retrying the transmit. If the transmit was successful, then don't set this flag. Found by running 'cec-compliance -A' on a beaglebone box. Signed-off-by: Hans Verkuil Signed-off-by: Russell King --- drivers/gpu/drm/i2c/tda9950.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c index f2186409f0cf..ccd355d0c123 100644 --- a/drivers/gpu/drm/i2c/tda9950.c +++ b/drivers/gpu/drm/i2c/tda9950.c @@ -188,7 +188,8 @@ static irqreturn_t tda9950_irq(int irq, void *data) break; } /* TDA9950 executes all retries for us */ - tx_status |= CEC_TX_STATUS_MAX_RETRIES; + if (tx_status != CEC_TX_STATUS_OK) + tx_status |= CEC_TX_STATUS_MAX_RETRIES; cec_transmit_done(priv->adap, tx_status, arb_lost_cnt, nack_cnt, 0, err_cnt); break; From a173f066c7cfc031acb8f541708041e009fc9812 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Mon, 17 Sep 2018 08:20:36 -0700 Subject: [PATCH 1184/1762] netfilter: bridge: Don't sabotage nf_hook calls from an l3mdev For starters, the bridge netfilter code registers operations that are invoked any time nh_hook is called. Specifically, ip_sabotage_in watches for nested calls for NF_INET_PRE_ROUTING when a bridge is in the stack. Packet wise, the bridge netfilter hook runs first. br_nf_pre_routing allocates nf_bridge, sets in_prerouting to 1 and calls NF_HOOK for NF_INET_PRE_ROUTING. It's finish function, br_nf_pre_routing_finish, then resets in_prerouting flag to 0 and the packet continues up the stack. The packet eventually makes it to the VRF driver and it invokes nf_hook for NF_INET_PRE_ROUTING in case any rules have been added against the vrf device. Because of the registered operations the call to nf_hook causes ip_sabotage_in to be invoked. That function sees the nf_bridge on the skb and that in_prerouting is not set. Thinking it is an invalid nested call it steals (drops) the packet. Update ip_sabotage_in to recognize that the bridge or one of its upper devices (e.g., vlan) can be enslaved to a VRF (L3 master device) and allow the packet to go through the nf_hook a second time. Fixes: 73e20b761acf ("net: vrf: Add support for PREROUTING rules on vrf device") Reported-by: D'Souza, Nelson Signed-off-by: David Ahern Signed-off-by: Pablo Neira Ayuso --- net/bridge/br_netfilter_hooks.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c index 6e0dc6bcd32a..37278dc280eb 100644 --- a/net/bridge/br_netfilter_hooks.c +++ b/net/bridge/br_netfilter_hooks.c @@ -835,7 +835,8 @@ static unsigned int ip_sabotage_in(void *priv, struct sk_buff *skb, const struct nf_hook_state *state) { - if (skb->nf_bridge && !skb->nf_bridge->in_prerouting) { + if (skb->nf_bridge && !skb->nf_bridge->in_prerouting && + !netif_is_l3_master(skb->dev)) { state->okfn(state->net, state->sk, skb); return NF_STOLEN; } From bab4344975fe2c719eda32de59298d6de26fe126 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Mon, 17 Sep 2018 22:21:36 -0700 Subject: [PATCH 1185/1762] netfilter: nft_osf: use enum nft_data_types for nft_validate_register_store The function nft_validate_register_store requires a struct of type struct nft_data_types. NFTA_DATA_VALUE is of type enum nft_verdict_attributes. Pass the correct enum type. This fixes a warning seen with Clang: net/netfilter/nft_osf.c:52:8: warning: implicit conversion from enumeration type 'enum nft_data_attributes' to different enumeration type 'enum nft_data_types' [-Wenum-conversion] NFTA_DATA_VALUE, NFT_OSF_MAXGENRELEN); ^~~~~~~~~~~~~~~ Fixes: b96af92d6eaf ("netfilter: nf_tables: implement Passive OS fingerprint module in nft_osf") Link: https://github.com/ClangBuiltLinux/linux/issues/103 Signed-off-by: Stefan Agner Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nft_osf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/nft_osf.c b/net/netfilter/nft_osf.c index 5af74b37f423..a35fb59ace73 100644 --- a/net/netfilter/nft_osf.c +++ b/net/netfilter/nft_osf.c @@ -49,7 +49,7 @@ static int nft_osf_init(const struct nft_ctx *ctx, priv->dreg = nft_parse_register(tb[NFTA_OSF_DREG]); err = nft_validate_register_store(ctx, priv->dreg, NULL, - NFTA_DATA_VALUE, NFT_OSF_MAXGENRELEN); + NFT_DATA_VALUE, NFT_OSF_MAXGENRELEN); if (err < 0) return err; From 346fa83d10934cf206e2fd0f514bf8ce186f08fe Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Wed, 19 Sep 2018 20:21:11 +0800 Subject: [PATCH 1186/1762] netfilter: conntrack: get rid of double sizeof sizeof(sizeof()) is quite strange and does not seem to be what is wanted here. The issue is detected with the help of Coccinelle. Fixes: 39215846740a ("netfilter: conntrack: remove nlattr_size pointer from l4proto trackers") Signed-off-by: zhong jiang Acked-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_proto_tcp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index b4bdf9eda7b7..247b89784a6f 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -1213,8 +1213,8 @@ static const struct nla_policy tcp_nla_policy[CTA_PROTOINFO_TCP_MAX+1] = { #define TCP_NLATTR_SIZE ( \ NLA_ALIGN(NLA_HDRLEN + 1) + \ NLA_ALIGN(NLA_HDRLEN + 1) + \ - NLA_ALIGN(NLA_HDRLEN + sizeof(sizeof(struct nf_ct_tcp_flags))) + \ - NLA_ALIGN(NLA_HDRLEN + sizeof(sizeof(struct nf_ct_tcp_flags)))) + NLA_ALIGN(NLA_HDRLEN + sizeof(struct nf_ct_tcp_flags)) + \ + NLA_ALIGN(NLA_HDRLEN + sizeof(struct nf_ct_tcp_flags))) static int nlattr_to_tcp(struct nlattr *cda[], struct nf_conn *ct) { From 26b471c7e2f7befd0f59c35b257749ca57e0ed70 Mon Sep 17 00:00:00 2001 From: Liran Alon Date: Sun, 16 Sep 2018 14:28:20 +0300 Subject: [PATCH 1187/1762] KVM: nVMX: Fix bad cleanup on error of get/set nested state IOCTLs The handlers of IOCTLs in kvm_arch_vcpu_ioctl() are expected to set their return value in "r" local var and break out of switch block when they encounter some error. This is because vcpu_load() is called before the switch block which have a proper cleanup of vcpu_put() afterwards. However, KVM_{GET,SET}_NESTED_STATE IOCTLs handlers just return immediately on error without performing above mentioned cleanup. Thus, change these handlers to behave as expected. Fixes: 8fcc4b5923af ("kvm: nVMX: Introduce KVM_CAP_NESTED_STATE") Reviewed-by: Mark Kanda Reviewed-by: Patrick Colp Signed-off-by: Liran Alon Signed-off-by: Paolo Bonzini --- arch/x86/kvm/x86.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 4c39ec5fc4fe..edbf00ec56b3 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4010,19 +4010,23 @@ long kvm_arch_vcpu_ioctl(struct file *filp, break; BUILD_BUG_ON(sizeof(user_data_size) != sizeof(user_kvm_nested_state->size)); + r = -EFAULT; if (get_user(user_data_size, &user_kvm_nested_state->size)) - return -EFAULT; + break; r = kvm_x86_ops->get_nested_state(vcpu, user_kvm_nested_state, user_data_size); if (r < 0) - return r; + break; if (r > user_data_size) { if (put_user(r, &user_kvm_nested_state->size)) - return -EFAULT; - return -E2BIG; + r = -EFAULT; + else + r = -E2BIG; + break; } + r = 0; break; } @@ -4034,19 +4038,21 @@ long kvm_arch_vcpu_ioctl(struct file *filp, if (!kvm_x86_ops->set_nested_state) break; + r = -EFAULT; if (copy_from_user(&kvm_state, user_kvm_nested_state, sizeof(kvm_state))) - return -EFAULT; + break; + r = -EINVAL; if (kvm_state.size < sizeof(kvm_state)) - return -EINVAL; + break; if (kvm_state.flags & ~(KVM_STATE_NESTED_RUN_PENDING | KVM_STATE_NESTED_GUEST_MODE)) - return -EINVAL; + break; /* nested_run_pending implies guest_mode. */ if (kvm_state.flags == KVM_STATE_NESTED_RUN_PENDING) - return -EINVAL; + break; r = kvm_x86_ops->set_nested_state(vcpu, user_kvm_nested_state, &kvm_state); break; From 7afecb3073e357ebfe4087e4ab8bb493c32bb652 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 18 Sep 2018 01:28:04 +0000 Subject: [PATCH 1188/1762] ASoC: convert for_each_rtd_codec_dai() for missing part commit 0b7990e38971 ("ASoC: add for_each_rtd_codec_dai() macro") added for_each_rtd_codec_dai(), but it didn't convert few loop which is not using "rtd". This patch fixup it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/soc-pcm.c | 31 +++++++++++++++---------------- 1 file changed, 15 insertions(+), 16 deletions(-) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 79f5dd541d29..e387fff352c8 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1301,6 +1301,7 @@ static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, struct snd_soc_dapm_widget *widget, int stream) { struct snd_soc_pcm_runtime *be; + struct snd_soc_dai *dai; int i; dev_dbg(card->dev, "ASoC: find BE for widget %s\n", widget->name); @@ -1318,8 +1319,7 @@ static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, if (be->cpu_dai->playback_widget == widget) return be; - for (i = 0; i < be->num_codecs; i++) { - struct snd_soc_dai *dai = be->codec_dais[i]; + for_each_rtd_codec_dai(be, i, dai) { if (dai->playback_widget == widget) return be; } @@ -1338,8 +1338,7 @@ static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, if (be->cpu_dai->capture_widget == widget) return be; - for (i = 0; i < be->num_codecs; i++) { - struct snd_soc_dai *dai = be->codec_dais[i]; + for_each_rtd_codec_dai(be, i, dai) { if (dai->capture_widget == widget) return be; } @@ -1435,6 +1434,7 @@ static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, struct snd_soc_dpcm *dpcm; struct snd_soc_dapm_widget_list *list = *list_; struct snd_soc_dapm_widget *widget; + struct snd_soc_dai *dai; int prune = 0; /* Destroy any old FE <--> BE connections */ @@ -1449,8 +1449,7 @@ static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, continue; /* is there a valid CODEC DAI widget for this BE */ - for (i = 0; i < dpcm->be->num_codecs; i++) { - struct snd_soc_dai *dai = dpcm->be->codec_dais[i]; + for_each_rtd_codec_dai(dpcm->be, i, dai) { widget = dai_get_widget(dai, stream); /* prune the BE if it's no longer in our active list */ @@ -1685,6 +1684,7 @@ static void dpcm_runtime_merge_format(struct snd_pcm_substream *substream, { struct snd_soc_pcm_runtime *fe = substream->private_data; struct snd_soc_dpcm *dpcm; + struct snd_soc_dai *dai; int stream = substream->stream; if (!fe->dai_link->dpcm_merged_format) @@ -1701,16 +1701,15 @@ static void dpcm_runtime_merge_format(struct snd_pcm_substream *substream, struct snd_soc_pcm_stream *codec_stream; int i; - for (i = 0; i < be->num_codecs; i++) { + for_each_rtd_codec_dai(be, i, dai) { /* * Skip CODECs which don't support the current stream * type. See soc_pcm_init_runtime_hw() for more details */ - if (!snd_soc_dai_stream_valid(be->codec_dais[i], - stream)) + if (!snd_soc_dai_stream_valid(dai, stream)) continue; - codec_dai_drv = be->codec_dais[i]->driver; + codec_dai_drv = dai->driver; if (stream == SNDRV_PCM_STREAM_PLAYBACK) codec_stream = &codec_dai_drv->playback; else @@ -1795,6 +1794,7 @@ static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream, struct snd_soc_dai_driver *codec_dai_drv; struct snd_soc_pcm_stream *codec_stream; struct snd_soc_pcm_stream *cpu_stream; + struct snd_soc_dai *dai; int i; if (stream == SNDRV_PCM_STREAM_PLAYBACK) @@ -1806,16 +1806,15 @@ static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream, *rate_max = min_not_zero(*rate_max, cpu_stream->rate_max); *rates = snd_pcm_rate_mask_intersect(*rates, cpu_stream->rates); - for (i = 0; i < be->num_codecs; i++) { + for_each_rtd_codec_dai(be, i, dai) { /* * Skip CODECs which don't support the current stream * type. See soc_pcm_init_runtime_hw() for more details */ - if (!snd_soc_dai_stream_valid(be->codec_dais[i], - stream)) + if (!snd_soc_dai_stream_valid(dai, stream)) continue; - codec_dai_drv = be->codec_dais[i]->driver; + codec_dai_drv = dai->driver; if (stream == SNDRV_PCM_STREAM_PLAYBACK) codec_stream = &codec_dai_drv->playback; else @@ -2784,6 +2783,7 @@ int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute) struct snd_soc_dpcm *dpcm; struct list_head *clients = &fe->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients; + struct snd_soc_dai *dai; list_for_each_entry(dpcm, clients, list_be) { @@ -2793,8 +2793,7 @@ int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute) if (be->dai_link->ignore_suspend) continue; - for (i = 0; i < be->num_codecs; i++) { - struct snd_soc_dai *dai = be->codec_dais[i]; + for_each_rtd_codec_dai(be, i, dai) { struct snd_soc_dai_driver *drv = dai->driver; dev_dbg(be->dev, "ASoC: BE digital mute %s\n", From 6d11b12879144da5f5aa08071a8a7f95f3b5a4e8 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 18 Sep 2018 01:28:30 +0000 Subject: [PATCH 1189/1762] ASoC: rename for_each_rtd_codec_dai_reverse to rollback commit 0b7990e38971 ("ASoC: add for_each_rtd_codec_dai() macro") added for_each_rtd_codec_dai_reverse(). but _rollback() is better naming than _reverse(). This patch rename it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/soc.h | 2 +- sound/soc/soc-pcm.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index 1e093b399bc0..ec1ae9f4feeb 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1164,7 +1164,7 @@ struct snd_soc_pcm_runtime { for ((i) = 0; \ ((i) < rtd->num_codecs) && ((dai) = rtd->codec_dais[i]); \ (i)++) -#define for_each_rtd_codec_dai_reverse(rtd, i, dai) \ +#define for_each_rtd_codec_dai_rollback(rtd, i, dai) \ for (; ((i--) >= 0) && ((dai) = rtd->codec_dais[i]);) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index e387fff352c8..1eff1dbb0d00 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -621,7 +621,7 @@ machine_err: i = rtd->num_codecs; codec_dai_err: - for_each_rtd_codec_dai_reverse(rtd, i, codec_dai) { + for_each_rtd_codec_dai_rollback(rtd, i, codec_dai) { if (codec_dai->driver->ops->shutdown) codec_dai->driver->ops->shutdown(substream, codec_dai); } @@ -1015,7 +1015,7 @@ interface_err: i = rtd->num_codecs; codec_err: - for_each_rtd_codec_dai_reverse(rtd, i, codec_dai) { + for_each_rtd_codec_dai_rollback(rtd, i, codec_dai) { if (codec_dai->driver->ops->hw_free) codec_dai->driver->ops->hw_free(substream, codec_dai); codec_dai->rate = 0; From 7fe072b4df5d0cc832eb758c1eed243c145a2dfc Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 18 Sep 2018 01:28:49 +0000 Subject: [PATCH 1190/1762] ASoC: add for_each_card_prelinks() macro To be more readable code, this patch adds new for_each_card_prelinks() macro, and replace existing code to it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/soc.h | 4 ++++ sound/soc/fsl/pcm030-audio-fabric.c | 5 +++-- sound/soc/generic/simple-card-utils.c | 6 ++---- sound/soc/intel/boards/skl_hda_dsp_generic.c | 5 +++-- sound/soc/mediatek/mt2701/mt2701-cs42448.c | 13 +++++++------ sound/soc/mediatek/mt2701/mt2701-wm8960.c | 13 +++++++------ sound/soc/mediatek/mt6797/mt6797-mt6351.c | 13 +++++++------ sound/soc/mediatek/mt8173/mt8173-max98090.c | 13 +++++++------ sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c | 7 ++++--- sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c | 7 ++++--- sound/soc/mediatek/mt8173/mt8173-rt5650.c | 7 ++++--- sound/soc/meson/axg-card.c | 3 +-- sound/soc/qcom/apq8096.c | 7 +++---- sound/soc/qcom/sdm845.c | 7 +++---- sound/soc/samsung/tm2_wm5110.c | 13 +++++++------ sound/soc/soc-core.c | 16 +++++++--------- 16 files changed, 73 insertions(+), 66 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index ec1ae9f4feeb..f94b989e7a1a 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1120,6 +1120,10 @@ struct snd_soc_card { void *drvdata; }; +#define for_each_card_prelinks(card, i, link) \ + for ((i) = 0; \ + ((i) < (card)->num_links) && ((link) = &(card)->dai_link[i]); \ + (i)++) /* SoC machine DAI configuration, glues a codec and cpu DAI together */ struct snd_soc_pcm_runtime { diff --git a/sound/soc/fsl/pcm030-audio-fabric.c b/sound/soc/fsl/pcm030-audio-fabric.c index ec731223cab3..e339f36cea95 100644 --- a/sound/soc/fsl/pcm030-audio-fabric.c +++ b/sound/soc/fsl/pcm030-audio-fabric.c @@ -57,6 +57,7 @@ static int pcm030_fabric_probe(struct platform_device *op) struct device_node *platform_np; struct snd_soc_card *card = &pcm030_card; struct pcm030_audio_data *pdata; + struct snd_soc_dai_link *dai_link; int ret; int i; @@ -78,8 +79,8 @@ static int pcm030_fabric_probe(struct platform_device *op) return -ENODEV; } - for (i = 0; i < card->num_links; i++) - card->dai_link[i].platform_of_node = platform_np; + for_each_card_prelinks(card, i, dai_link) + dai_link->platform_of_node = platform_np; ret = request_module("snd-soc-wm9712"); if (ret) diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index b400dbf1f834..f34cc6cddfa2 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -404,11 +404,9 @@ EXPORT_SYMBOL_GPL(asoc_simple_card_canonicalize_cpu); int asoc_simple_card_clean_reference(struct snd_soc_card *card) { struct snd_soc_dai_link *dai_link; - int num_links; + int i; - for (num_links = 0, dai_link = card->dai_link; - num_links < card->num_links; - num_links++, dai_link++) { + for_each_card_prelinks(card, i, dai_link) { of_node_put(dai_link->cpu_of_node); of_node_put(dai_link->codecs->of_node); } diff --git a/sound/soc/intel/boards/skl_hda_dsp_generic.c b/sound/soc/intel/boards/skl_hda_dsp_generic.c index b213e9b47505..b415dd4c85f5 100644 --- a/sound/soc/intel/boards/skl_hda_dsp_generic.c +++ b/sound/soc/intel/boards/skl_hda_dsp_generic.c @@ -104,6 +104,7 @@ static struct snd_soc_card hda_soc_card = { static int skl_hda_fill_card_info(struct skl_machine_pdata *pdata) { struct snd_soc_card *card = &hda_soc_card; + struct snd_soc_dai_link *dai_link; u32 codec_count, codec_mask; int i, num_links, num_route; @@ -125,8 +126,8 @@ static int skl_hda_fill_card_info(struct skl_machine_pdata *pdata) card->num_links = num_links; card->num_dapm_routes = num_route; - for (i = 0; i < num_links; i++) - skl_hda_be_dai_links[i].platform_name = pdata->platform; + for_each_card_prelinks(card, i, dai_link) + dai_link->platform_name = pdata->platform; return 0; } diff --git a/sound/soc/mediatek/mt2701/mt2701-cs42448.c b/sound/soc/mediatek/mt2701/mt2701-cs42448.c index 666282b865a8..875f84691535 100644 --- a/sound/soc/mediatek/mt2701/mt2701-cs42448.c +++ b/sound/soc/mediatek/mt2701/mt2701-cs42448.c @@ -299,6 +299,7 @@ static int mt2701_cs42448_machine_probe(struct platform_device *pdev) devm_kzalloc(&pdev->dev, sizeof(struct mt2701_cs42448_private), GFP_KERNEL); struct device *dev = &pdev->dev; + struct snd_soc_dai_link *dai_link; if (!priv) return -ENOMEM; @@ -309,10 +310,10 @@ static int mt2701_cs42448_machine_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Property 'platform' missing or invalid\n"); return -EINVAL; } - for (i = 0; i < card->num_links; i++) { - if (mt2701_cs42448_dai_links[i].platform_name) + for_each_card_prelinks(card, i, dai_link) { + if (dai_links->platform_name) continue; - mt2701_cs42448_dai_links[i].platform_of_node = platform_node; + dai_links->platform_of_node = platform_node; } card->dev = dev; @@ -324,10 +325,10 @@ static int mt2701_cs42448_machine_probe(struct platform_device *pdev) "Property 'audio-codec' missing or invalid\n"); return -EINVAL; } - for (i = 0; i < card->num_links; i++) { - if (mt2701_cs42448_dai_links[i].codec_name) + for_each_card_prelinks(card, i, dai_link) { + if (dai_links->codec_name) continue; - mt2701_cs42448_dai_links[i].codec_of_node = codec_node; + dai_links->codec_of_node = codec_node; } codec_node_bt_mrg = of_parse_phandle(pdev->dev.of_node, diff --git a/sound/soc/mediatek/mt2701/mt2701-wm8960.c b/sound/soc/mediatek/mt2701/mt2701-wm8960.c index e5d49e6e2f99..c67f62935e53 100644 --- a/sound/soc/mediatek/mt2701/mt2701-wm8960.c +++ b/sound/soc/mediatek/mt2701/mt2701-wm8960.c @@ -97,6 +97,7 @@ static int mt2701_wm8960_machine_probe(struct platform_device *pdev) { struct snd_soc_card *card = &mt2701_wm8960_card; struct device_node *platform_node, *codec_node; + struct snd_soc_dai_link *dai_link; int ret, i; platform_node = of_parse_phandle(pdev->dev.of_node, @@ -105,10 +106,10 @@ static int mt2701_wm8960_machine_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Property 'platform' missing or invalid\n"); return -EINVAL; } - for (i = 0; i < card->num_links; i++) { - if (mt2701_wm8960_dai_links[i].platform_name) + for_each_card_prelinks(card, i, dai_link) { + if (dai_links->platform_name) continue; - mt2701_wm8960_dai_links[i].platform_of_node = platform_node; + dai_links->platform_of_node = platform_node; } card->dev = &pdev->dev; @@ -120,10 +121,10 @@ static int mt2701_wm8960_machine_probe(struct platform_device *pdev) "Property 'audio-codec' missing or invalid\n"); return -EINVAL; } - for (i = 0; i < card->num_links; i++) { - if (mt2701_wm8960_dai_links[i].codec_name) + for_each_card_prelinks(card, i, dai_link) { + if (dai_links->codec_name) continue; - mt2701_wm8960_dai_links[i].codec_of_node = codec_node; + dai_links->codec_of_node = codec_node; } ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); diff --git a/sound/soc/mediatek/mt6797/mt6797-mt6351.c b/sound/soc/mediatek/mt6797/mt6797-mt6351.c index 6e578e830e42..ff2e0ca4384e 100644 --- a/sound/soc/mediatek/mt6797/mt6797-mt6351.c +++ b/sound/soc/mediatek/mt6797/mt6797-mt6351.c @@ -158,6 +158,7 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev) { struct snd_soc_card *card = &mt6797_mt6351_card; struct device_node *platform_node, *codec_node; + struct snd_soc_dai_link *dai_link; int ret, i; card->dev = &pdev->dev; @@ -168,10 +169,10 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Property 'platform' missing or invalid\n"); return -EINVAL; } - for (i = 0; i < card->num_links; i++) { - if (mt6797_mt6351_dai_links[i].platform_name) + for_each_card_prelinks(card, i, dai_link) { + if (dai_link->platform_name) continue; - mt6797_mt6351_dai_links[i].platform_of_node = platform_node; + dai_links->platform_of_node = platform_node; } codec_node = of_parse_phandle(pdev->dev.of_node, @@ -181,10 +182,10 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev) "Property 'audio-codec' missing or invalid\n"); return -EINVAL; } - for (i = 0; i < card->num_links; i++) { - if (mt6797_mt6351_dai_links[i].codec_name) + for_each_card_prelinks(card, i, dai_link) { + if (dai_links->codec_name) continue; - mt6797_mt6351_dai_links[i].codec_of_node = codec_node; + dai_links->codec_of_node = codec_node; } ret = devm_snd_soc_register_card(&pdev->dev, card); diff --git a/sound/soc/mediatek/mt8173/mt8173-max98090.c b/sound/soc/mediatek/mt8173/mt8173-max98090.c index 902d111016d6..4d6596d5cb07 100644 --- a/sound/soc/mediatek/mt8173/mt8173-max98090.c +++ b/sound/soc/mediatek/mt8173/mt8173-max98090.c @@ -137,6 +137,7 @@ static int mt8173_max98090_dev_probe(struct platform_device *pdev) { struct snd_soc_card *card = &mt8173_max98090_card; struct device_node *codec_node, *platform_node; + struct snd_soc_dai_link *dai_link; int ret, i; platform_node = of_parse_phandle(pdev->dev.of_node, @@ -145,10 +146,10 @@ static int mt8173_max98090_dev_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Property 'platform' missing or invalid\n"); return -EINVAL; } - for (i = 0; i < card->num_links; i++) { - if (mt8173_max98090_dais[i].platform_name) + for_each_card_prelinks(card, i, dai_link) { + if (dai_link->platform_name) continue; - mt8173_max98090_dais[i].platform_of_node = platform_node; + dai_link->platform_of_node = platform_node; } codec_node = of_parse_phandle(pdev->dev.of_node, @@ -158,10 +159,10 @@ static int mt8173_max98090_dev_probe(struct platform_device *pdev) "Property 'audio-codec' missing or invalid\n"); return -EINVAL; } - for (i = 0; i < card->num_links; i++) { - if (mt8173_max98090_dais[i].codec_name) + for_each_card_prelinks(card, i, dai_link) { + if (dai_link->codec_name) continue; - mt8173_max98090_dais[i].codec_of_node = codec_node; + dai_link->codec_of_node = codec_node; } card->dev = &pdev->dev; diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c index 5b4e90180827..da5b58ce791b 100644 --- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c +++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c @@ -178,6 +178,7 @@ static int mt8173_rt5650_rt5514_dev_probe(struct platform_device *pdev) { struct snd_soc_card *card = &mt8173_rt5650_rt5514_card; struct device_node *platform_node; + struct snd_soc_dai_link *dai_link; int i, ret; platform_node = of_parse_phandle(pdev->dev.of_node, @@ -187,10 +188,10 @@ static int mt8173_rt5650_rt5514_dev_probe(struct platform_device *pdev) return -EINVAL; } - for (i = 0; i < card->num_links; i++) { - if (mt8173_rt5650_rt5514_dais[i].platform_name) + for_each_card_prelinks(card, i, dai_link) { + if (dai_link->platform_name) continue; - mt8173_rt5650_rt5514_dais[i].platform_of_node = platform_node; + dai_link->platform_of_node = platform_node; } mt8173_rt5650_rt5514_codecs[0].of_node = diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c index 82675ed057de..d83cd039b413 100644 --- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c +++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c @@ -224,6 +224,7 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev) { struct snd_soc_card *card = &mt8173_rt5650_rt5676_card; struct device_node *platform_node; + struct snd_soc_dai_link *dai_link; int i, ret; platform_node = of_parse_phandle(pdev->dev.of_node, @@ -233,10 +234,10 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev) return -EINVAL; } - for (i = 0; i < card->num_links; i++) { - if (mt8173_rt5650_rt5676_dais[i].platform_name) + for_each_card_prelinks(card, i, dai_link) { + if (dai_link->platform_name) continue; - mt8173_rt5650_rt5676_dais[i].platform_of_node = platform_node; + dai_link->platform_of_node = platform_node; } mt8173_rt5650_rt5676_codecs[0].of_node = diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650.c b/sound/soc/mediatek/mt8173/mt8173-rt5650.c index ef05fbc40c32..7edf250c8fb1 100644 --- a/sound/soc/mediatek/mt8173/mt8173-rt5650.c +++ b/sound/soc/mediatek/mt8173/mt8173-rt5650.c @@ -239,6 +239,7 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev) struct device_node *platform_node; struct device_node *np; const char *codec_capture_dai; + struct snd_soc_dai_link *dai_link; int i, ret; platform_node = of_parse_phandle(pdev->dev.of_node, @@ -248,10 +249,10 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev) return -EINVAL; } - for (i = 0; i < card->num_links; i++) { - if (mt8173_rt5650_dais[i].platform_name) + for_each_card_prelinks(card, i, dai_link) { + if (dai_link->platform_name) continue; - mt8173_rt5650_dais[i].platform_of_node = platform_node; + dai_link->platform_of_node = platform_node; } mt8173_rt5650_codecs[0].of_node = diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c index 197e10a96e28..aa54d2c612c9 100644 --- a/sound/soc/meson/axg-card.c +++ b/sound/soc/meson/axg-card.c @@ -101,8 +101,7 @@ static void axg_card_clean_references(struct axg_card *priv) int i, j; if (card->dai_link) { - for (i = 0; i < card->num_links; i++) { - link = &card->dai_link[i]; + for_each_card_prelinks(card, i, link) { of_node_put(link->cpu_of_node); for_each_link_codecs(link, j, codec) of_node_put(codec->of_node); diff --git a/sound/soc/qcom/apq8096.c b/sound/soc/qcom/apq8096.c index 1543e85629f8..fb45f396ab4a 100644 --- a/sound/soc/qcom/apq8096.c +++ b/sound/soc/qcom/apq8096.c @@ -25,13 +25,12 @@ static int apq8096_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, static void apq8096_add_be_ops(struct snd_soc_card *card) { - struct snd_soc_dai_link *link = card->dai_link; - int i, num_links = card->num_links; + struct snd_soc_dai_link *link; + int i; - for (i = 0; i < num_links; i++) { + for_each_card_prelinks(card, i, link) { if (link->no_pcm == 1) link->be_hw_params_fixup = apq8096_be_hw_params_fixup; - link++; } } diff --git a/sound/soc/qcom/sdm845.c b/sound/soc/qcom/sdm845.c index 2a781d87ee65..9effbecc571f 100644 --- a/sound/soc/qcom/sdm845.c +++ b/sound/soc/qcom/sdm845.c @@ -195,15 +195,14 @@ static int sdm845_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, static void sdm845_add_be_ops(struct snd_soc_card *card) { - struct snd_soc_dai_link *link = card->dai_link; - int i, num_links = card->num_links; + struct snd_soc_dai_link *link; + int i; - for (i = 0; i < num_links; i++) { + for_each_card_prelinks(card, i, link) { if (link->no_pcm == 1) { link->ops = &sdm845_be_ops; link->be_hw_params_fixup = sdm845_be_hw_params_fixup; } - link++; } } diff --git a/sound/soc/samsung/tm2_wm5110.c b/sound/soc/samsung/tm2_wm5110.c index 43332c32d7e9..dc93941e01c3 100644 --- a/sound/soc/samsung/tm2_wm5110.c +++ b/sound/soc/samsung/tm2_wm5110.c @@ -491,6 +491,7 @@ static int tm2_probe(struct platform_device *pdev) struct snd_soc_card *card = &tm2_card; struct tm2_machine_priv *priv; struct of_phandle_args args; + struct snd_soc_dai_link *dai_link; int num_codecs, ret, i; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); @@ -558,18 +559,18 @@ static int tm2_probe(struct platform_device *pdev) } /* Initialize WM5110 - I2S and HDMI - I2S1 DAI links */ - for (i = 0; i < card->num_links; i++) { + for_each_card_prelinks(card, i, dai_link) { unsigned int dai_index = 0; /* WM5110 */ - card->dai_link[i].cpu_name = NULL; - card->dai_link[i].platform_name = NULL; + dai_link->cpu_name = NULL; + dai_link->platform_name = NULL; if (num_codecs > 1 && i == card->num_links - 1) dai_index = 1; /* HDMI */ - card->dai_link[i].codec_of_node = codec_dai_node[dai_index]; - card->dai_link[i].cpu_of_node = cpu_dai_node[dai_index]; - card->dai_link[i].platform_of_node = cpu_dai_node[dai_index]; + dai_link->codec_of_node = codec_dai_node[dai_index]; + dai_link->cpu_of_node = cpu_dai_node[dai_index]; + dai_link->platform_of_node = cpu_dai_node[dai_index]; } if (num_codecs > 1) { diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index da2b2a758b6d..532d8c59ed1e 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1889,9 +1889,7 @@ static void soc_check_tplg_fes(struct snd_soc_card *card) continue; /* machine matches, so override the rtd data */ - for (i = 0; i < card->num_links; i++) { - - dai_link = &card->dai_link[i]; + for_each_card_prelinks(card, i, dai_link) { /* ignore this FE */ if (dai_link->dynamic) { @@ -1955,8 +1953,8 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) soc_check_tplg_fes(card); /* bind DAIs */ - for (i = 0; i < card->num_links; i++) { - ret = soc_bind_dai_link(card, &card->dai_link[i]); + for_each_card_prelinks(card, i, dai_link) { + ret = soc_bind_dai_link(card, dai_link); if (ret != 0) goto base_error; } @@ -1969,8 +1967,8 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) } /* add predefined DAI links to the list */ - for (i = 0; i < card->num_links; i++) - snd_soc_add_dai_link(card, card->dai_link+i); + for_each_card_prelinks(card, i, dai_link) + snd_soc_add_dai_link(card, dai_link); /* card bind complete so register a sound card */ ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, @@ -2714,12 +2712,12 @@ static int snd_soc_bind_card(struct snd_soc_card *card) int snd_soc_register_card(struct snd_soc_card *card) { int i, ret; + struct snd_soc_dai_link *link; if (!card->name || !card->dev) return -EINVAL; - for (i = 0; i < card->num_links; i++) { - struct snd_soc_dai_link *link = &card->dai_link[i]; + for_each_card_prelinks(card, i, link) { ret = soc_init_dai_link(card, link); if (ret) { From 98061fdbfccc02aa0fd6637c67a0524aab385b8d Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 18 Sep 2018 01:29:16 +0000 Subject: [PATCH 1191/1762] ASoC: add for_each_card_links() macro To be more readable code, this patch adds new for_each_card_links() macro, and replace existing code to it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/soc.h | 6 ++++++ sound/soc/soc-core.c | 8 ++++---- 2 files changed, 10 insertions(+), 4 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index f94b989e7a1a..1fffbaa819d9 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1125,6 +1125,12 @@ struct snd_soc_card { ((i) < (card)->num_links) && ((link) = &(card)->dai_link[i]); \ (i)++) +#define for_each_card_links(card, link) \ + list_for_each_entry(dai_link, &(card)->dai_link_list, list) +#define for_each_card_links_safe(card, link, _link) \ + list_for_each_entry_safe(link, _link, &(card)->dai_link_list, list) + + /* SoC machine DAI configuration, glues a codec and cpu DAI together */ struct snd_soc_pcm_runtime { struct device *dev; diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 532d8c59ed1e..495173635642 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -816,7 +816,7 @@ struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, lockdep_assert_held(&client_mutex); - list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { + for_each_card_links_safe(card, link, _link) { if (link->id != id) continue; @@ -1004,7 +1004,7 @@ static void soc_remove_dai_links(struct snd_soc_card *card) soc_remove_link_components(card, rtd, order); } - list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { + for_each_card_links_safe(card, link, _link) { if (link->dobj.type == SND_SOC_DOBJ_DAI_LINK) dev_warn(card->dev, "Topology forgot to remove link %s?\n", link->name); @@ -1219,7 +1219,7 @@ void snd_soc_remove_dai_link(struct snd_soc_card *card, if (dai_link->dobj.type && card->remove_dai_link) card->remove_dai_link(card, dai_link); - list_for_each_entry_safe(link, _link, &card->dai_link_list, list) { + for_each_card_links_safe(card, link, _link) { if (link == dai_link) { list_del(&link->list); return; @@ -2033,7 +2033,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) /* Find new DAI links added during probing components and bind them. * Components with topology may bring new DAIs and DAI links. */ - list_for_each_entry(dai_link, &card->dai_link_list, list) { + for_each_card_links(card, dai_link) { if (soc_is_dai_link_bound(card, dai_link)) continue; From bcb1fd1fcd6507ba5a1f8610550135dc367aedb7 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 18 Sep 2018 01:29:35 +0000 Subject: [PATCH 1192/1762] ASoC: add for_each_card_rtds() macro To be more readable code, this patch adds new for_each_card_rtds() macro, and replace existing code to it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/soc.h | 4 ++ sound/soc/codecs/hdac_hdmi.c | 2 +- sound/soc/intel/atom/sst-mfld-platform-pcm.c | 4 +- sound/soc/soc-core.c | 48 ++++++++++---------- sound/soc/soc-dapm.c | 2 +- sound/soc/soc-pcm.c | 12 ++--- 6 files changed, 38 insertions(+), 34 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index 1fffbaa819d9..164418dbf40e 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1130,6 +1130,10 @@ struct snd_soc_card { #define for_each_card_links_safe(card, link, _link) \ list_for_each_entry_safe(link, _link, &(card)->dai_link_list, list) +#define for_each_card_rtds(card, rtd) \ + list_for_each_entry(rtd, &(card)->rtd_list, list) +#define for_each_card_rtds_safe(card, rtd, _rtd) \ + list_for_each_entry_safe(rtd, _rtd, &(card)->rtd_list, list) /* SoC machine DAI configuration, glues a codec and cpu DAI together */ struct snd_soc_pcm_runtime { diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 41d90dc6ebf7..4e9854889a95 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -1604,7 +1604,7 @@ static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card, { struct snd_soc_pcm_runtime *rtd; - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { if (rtd->pcm && (rtd->pcm->device == device)) return rtd->pcm; } diff --git a/sound/soc/intel/atom/sst-mfld-platform-pcm.c b/sound/soc/intel/atom/sst-mfld-platform-pcm.c index 6c36da560877..afc559866095 100644 --- a/sound/soc/intel/atom/sst-mfld-platform-pcm.c +++ b/sound/soc/intel/atom/sst-mfld-platform-pcm.c @@ -765,7 +765,7 @@ static int sst_soc_prepare(struct device *dev) snd_soc_poweroff(drv->soc_card->dev); /* set the SSPs to idle */ - list_for_each_entry(rtd, &drv->soc_card->rtd_list, list) { + for_each_card_rtds(drv->soc_card, rtd) { struct snd_soc_dai *dai = rtd->cpu_dai; if (dai->active) { @@ -786,7 +786,7 @@ static void sst_soc_complete(struct device *dev) return; /* restart SSPs */ - list_for_each_entry(rtd, &drv->soc_card->rtd_list, list) { + for_each_card_rtds(drv->soc_card, rtd) { struct snd_soc_dai *dai = rtd->cpu_dai; if (dai->active) { diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 495173635642..7efcf3475d6f 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -342,7 +342,7 @@ struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, { struct snd_soc_pcm_runtime *rtd; - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { if (rtd->dai_link->no_pcm && !strcmp(rtd->dai_link->name, dai_link)) return rtd->pcm->streams[stream].substream; @@ -399,7 +399,7 @@ static void soc_remove_pcm_runtimes(struct snd_soc_card *card) { struct snd_soc_pcm_runtime *rtd, *_rtd; - list_for_each_entry_safe(rtd, _rtd, &card->rtd_list, list) { + for_each_card_rtds_safe(card, rtd, _rtd) { list_del(&rtd->list); soc_free_pcm_runtime(rtd); } @@ -412,7 +412,7 @@ struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, { struct snd_soc_pcm_runtime *rtd; - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { if (!strcmp(rtd->dai_link->name, dai_link)) return rtd; } @@ -452,7 +452,7 @@ int snd_soc_suspend(struct device *dev) snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); /* mute any active DACs */ - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { struct snd_soc_dai *dai; if (rtd->dai_link->ignore_suspend) @@ -467,7 +467,7 @@ int snd_soc_suspend(struct device *dev) } /* suspend all pcms */ - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { if (rtd->dai_link->ignore_suspend) continue; @@ -477,7 +477,7 @@ int snd_soc_suspend(struct device *dev) if (card->suspend_pre) card->suspend_pre(card); - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; if (rtd->dai_link->ignore_suspend) @@ -488,10 +488,10 @@ int snd_soc_suspend(struct device *dev) } /* close any waiting streams */ - list_for_each_entry(rtd, &card->rtd_list, list) + for_each_card_rtds(card, rtd) flush_delayed_work(&rtd->delayed_work); - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { if (rtd->dai_link->ignore_suspend) continue; @@ -548,7 +548,7 @@ int snd_soc_suspend(struct device *dev) } } - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; if (rtd->dai_link->ignore_suspend) @@ -592,7 +592,7 @@ static void soc_resume_deferred(struct work_struct *work) card->resume_pre(card); /* resume control bus DAIs */ - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; if (rtd->dai_link->ignore_suspend) @@ -610,7 +610,7 @@ static void soc_resume_deferred(struct work_struct *work) } } - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { if (rtd->dai_link->ignore_suspend) continue; @@ -625,7 +625,7 @@ static void soc_resume_deferred(struct work_struct *work) } /* unmute any active DACs */ - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { struct snd_soc_dai *dai; if (rtd->dai_link->ignore_suspend) @@ -639,7 +639,7 @@ static void soc_resume_deferred(struct work_struct *work) } } - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; if (rtd->dai_link->ignore_suspend) @@ -674,7 +674,7 @@ int snd_soc_resume(struct device *dev) return 0; /* activate pins from sleep state */ - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { struct snd_soc_dai *codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; int j; @@ -694,7 +694,7 @@ int snd_soc_resume(struct device *dev) * have that problem and may take a substantial amount of time to resume * due to I/O costs and anti-pop so handle them out of line. */ - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; bus_control |= cpu_dai->driver->bus_control; } @@ -839,7 +839,7 @@ static bool soc_is_dai_link_bound(struct snd_soc_card *card, { struct snd_soc_pcm_runtime *rtd; - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { if (rtd->dai_link == dai_link) return true; } @@ -994,13 +994,13 @@ static void soc_remove_dai_links(struct snd_soc_card *card) for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; order++) { - list_for_each_entry(rtd, &card->rtd_list, list) + for_each_card_rtds(card, rtd) soc_remove_link_dais(card, rtd, order); } for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; order++) { - list_for_each_entry(rtd, &card->rtd_list, list) + for_each_card_rtds(card, rtd) soc_remove_link_components(card, rtd, order); } @@ -2014,7 +2014,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) /* probe all components used by DAI links on this card */ for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; order++) { - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { ret = soc_probe_link_components(card, rtd, order); if (ret < 0) { dev_err(card->dev, @@ -2048,7 +2048,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) /* probe all DAI links on this card */ for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; order++) { - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { ret = soc_probe_link_dais(card, rtd, order); if (ret < 0) { dev_err(card->dev, @@ -2169,7 +2169,7 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card) struct snd_soc_pcm_runtime *rtd; /* make sure any delayed work runs */ - list_for_each_entry(rtd, &card->rtd_list, list) + for_each_card_rtds(card, rtd) flush_delayed_work(&rtd->delayed_work); /* free the ALSA card at first; this syncs with pending operations */ @@ -2211,13 +2211,13 @@ int snd_soc_poweroff(struct device *dev) /* Flush out pmdown_time work - we actually do want to run it * now, we're shutting down so no imminent restart. */ - list_for_each_entry(rtd, &card->rtd_list, list) + for_each_card_rtds(card, rtd) flush_delayed_work(&rtd->delayed_work); snd_soc_dapm_shutdown(card); /* deactivate pins to sleep state */ - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct snd_soc_dai *codec_dai; int i; @@ -2686,7 +2686,7 @@ static int snd_soc_bind_card(struct snd_soc_card *card) return ret; /* deactivate pins to sleep state */ - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct snd_soc_dai *codec_dai; int j; diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index ee6b9758ec15..8c5b065c8880 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -4183,7 +4183,7 @@ void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) struct snd_soc_pcm_runtime *rtd; /* for each BE DAI link... */ - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { /* * dynamic FE links have no fixed DAI mapping. * CODEC<->CODEC links have no direct connection. diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 1eff1dbb0d00..09d0f668c78e 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1307,7 +1307,7 @@ static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, dev_dbg(card->dev, "ASoC: find BE for widget %s\n", widget->name); if (stream == SNDRV_PCM_STREAM_PLAYBACK) { - list_for_each_entry(be, &card->rtd_list, list) { + for_each_card_rtds(card, be) { if (!be->dai_link->no_pcm) continue; @@ -1326,7 +1326,7 @@ static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, } } else { - list_for_each_entry(be, &card->rtd_list, list) { + for_each_card_rtds(card, be) { if (!be->dai_link->no_pcm) continue; @@ -1382,7 +1382,7 @@ static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget, int i; if (dir == SND_SOC_DAPM_DIR_OUT) { - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { if (!rtd->dai_link->no_pcm) continue; @@ -1395,7 +1395,7 @@ static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget, } } } else { /* SND_SOC_DAPM_DIR_IN */ - list_for_each_entry(rtd, &card->rtd_list, list) { + for_each_card_rtds(card, rtd) { if (!rtd->dai_link->no_pcm) continue; @@ -2761,14 +2761,14 @@ int soc_dpcm_runtime_update(struct snd_soc_card *card) mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_RUNTIME); /* shutdown all old paths first */ - list_for_each_entry(fe, &card->rtd_list, list) { + for_each_card_rtds(card, fe) { ret = soc_dpcm_fe_runtime_update(fe, 0); if (ret) goto out; } /* bring new paths up */ - list_for_each_entry(fe, &card->rtd_list, list) { + for_each_card_rtds(card, fe) { ret = soc_dpcm_fe_runtime_update(fe, 1); if (ret) goto out; From f70f18f7d459b7958a4d3944396e2bc4a9f7ed72 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 18 Sep 2018 01:29:55 +0000 Subject: [PATCH 1193/1762] ASoC: add for_each_card_components() macro To be more readable code, this patch adds new for_each_card_components() macro, and replace existing code to it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/soc.h | 3 +++ sound/soc/intel/boards/broadwell.c | 4 ++-- sound/soc/intel/boards/bytcr_rt5640.c | 4 ++-- sound/soc/intel/boards/bytcr_rt5651.c | 4 ++-- sound/soc/intel/boards/cht_bsw_rt5672.c | 4 ++-- sound/soc/soc-core.c | 5 +++-- 6 files changed, 14 insertions(+), 10 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index 164418dbf40e..34efab6baff6 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1135,6 +1135,9 @@ struct snd_soc_card { #define for_each_card_rtds_safe(card, rtd, _rtd) \ list_for_each_entry_safe(rtd, _rtd, &(card)->rtd_list, list) +#define for_each_card_components(card, component) \ + list_for_each_entry(component, &(card)->component_dev_list, card_list) + /* SoC machine DAI configuration, glues a codec and cpu DAI together */ struct snd_soc_pcm_runtime { struct device *dev; diff --git a/sound/soc/intel/boards/broadwell.c b/sound/soc/intel/boards/broadwell.c index 7b0ee67b4fc8..68e6543e6cb0 100644 --- a/sound/soc/intel/boards/broadwell.c +++ b/sound/soc/intel/boards/broadwell.c @@ -223,7 +223,7 @@ static struct snd_soc_dai_link broadwell_rt286_dais[] = { static int broadwell_suspend(struct snd_soc_card *card){ struct snd_soc_component *component; - list_for_each_entry(component, &card->component_dev_list, card_list) { + for_each_card_components(card, component) { if (!strcmp(component->name, "i2c-INT343A:00")) { dev_dbg(component->dev, "disabling jack detect before going to suspend.\n"); @@ -237,7 +237,7 @@ static int broadwell_suspend(struct snd_soc_card *card){ static int broadwell_resume(struct snd_soc_card *card){ struct snd_soc_component *component; - list_for_each_entry(component, &card->component_dev_list, card_list) { + for_each_card_components(card, component) { if (!strcmp(component->name, "i2c-INT343A:00")) { dev_dbg(component->dev, "enabling jack detect for resume.\n"); diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index b6dc524830b2..8587bd3d1cc1 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -1048,7 +1048,7 @@ static int byt_rt5640_suspend(struct snd_soc_card *card) if (!BYT_RT5640_JDSRC(byt_rt5640_quirk)) return 0; - list_for_each_entry(component, &card->component_dev_list, card_list) { + for_each_card_components(card, component) { if (!strcmp(component->name, byt_rt5640_codec_name)) { dev_dbg(component->dev, "disabling jack detect before suspend\n"); snd_soc_component_set_jack(component, NULL, NULL); @@ -1067,7 +1067,7 @@ static int byt_rt5640_resume(struct snd_soc_card *card) if (!BYT_RT5640_JDSRC(byt_rt5640_quirk)) return 0; - list_for_each_entry(component, &card->component_dev_list, card_list) { + for_each_card_components(card, component) { if (!strcmp(component->name, byt_rt5640_codec_name)) { dev_dbg(component->dev, "re-enabling jack detect after resume\n"); snd_soc_component_set_jack(component, &priv->jack, NULL); diff --git a/sound/soc/intel/boards/bytcr_rt5651.c b/sound/soc/intel/boards/bytcr_rt5651.c index f8a68bdb3885..8dffeecda55b 100644 --- a/sound/soc/intel/boards/bytcr_rt5651.c +++ b/sound/soc/intel/boards/bytcr_rt5651.c @@ -742,7 +742,7 @@ static int byt_rt5651_suspend(struct snd_soc_card *card) if (!BYT_RT5651_JDSRC(byt_rt5651_quirk)) return 0; - list_for_each_entry(component, &card->component_dev_list, card_list) { + for_each_card_components(card, component) { if (!strcmp(component->name, byt_rt5651_codec_name)) { dev_dbg(component->dev, "disabling jack detect before suspend\n"); snd_soc_component_set_jack(component, NULL, NULL); @@ -761,7 +761,7 @@ static int byt_rt5651_resume(struct snd_soc_card *card) if (!BYT_RT5651_JDSRC(byt_rt5651_quirk)) return 0; - list_for_each_entry(component, &card->component_dev_list, card_list) { + for_each_card_components(card, component) { if (!strcmp(component->name, byt_rt5651_codec_name)) { dev_dbg(component->dev, "re-enabling jack detect after resume\n"); snd_soc_component_set_jack(component, &priv->jack, NULL); diff --git a/sound/soc/intel/boards/cht_bsw_rt5672.c b/sound/soc/intel/boards/cht_bsw_rt5672.c index e054318185ea..51f0d45d6f8f 100644 --- a/sound/soc/intel/boards/cht_bsw_rt5672.c +++ b/sound/soc/intel/boards/cht_bsw_rt5672.c @@ -347,7 +347,7 @@ static int cht_suspend_pre(struct snd_soc_card *card) struct snd_soc_component *component; struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); - list_for_each_entry(component, &card->component_dev_list, card_list) { + for_each_card_components(card, component) { if (!strncmp(component->name, ctx->codec_name, sizeof(ctx->codec_name))) { @@ -364,7 +364,7 @@ static int cht_resume_post(struct snd_soc_card *card) struct snd_soc_component *component; struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); - list_for_each_entry(component, &card->component_dev_list, card_list) { + for_each_card_components(card, component) { if (!strncmp(component->name, ctx->codec_name, sizeof(ctx->codec_name))) { diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 7efcf3475d6f..673a694ede3e 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -510,7 +510,7 @@ int snd_soc_suspend(struct device *dev) snd_soc_dapm_sync(&card->dapm); /* suspend all COMPONENTs */ - list_for_each_entry(component, &card->component_dev_list, card_list) { + for_each_card_components(card, component) { struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); /* If there are paths active then the COMPONENT will be held with @@ -602,7 +602,7 @@ static void soc_resume_deferred(struct work_struct *work) cpu_dai->driver->resume(cpu_dai); } - list_for_each_entry(component, &card->component_dev_list, card_list) { + for_each_card_components(card, component) { if (component->suspended) { if (component->driver->resume) component->driver->resume(component); @@ -1354,6 +1354,7 @@ static int soc_probe_component(struct snd_soc_card *card, component->driver->num_dapm_routes); list_add(&dapm->list, &card->dapm_list); + /* see for_each_card_components */ list_add(&component->card_list, &card->component_dev_list); return 0; From 1a1035a9854fd893d487a84edccc1d5804e1d716 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 18 Sep 2018 01:30:41 +0000 Subject: [PATCH 1194/1762] ASoC: add for_each_comp_order() macro To be more readable code, this patch adds new for_each_comp_order() macro, and replace existing code to it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/soc.h | 5 +++++ sound/soc/soc-core.c | 18 ++++++------------ 2 files changed, 11 insertions(+), 12 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index 34efab6baff6..93aa894a57ef 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -372,6 +372,11 @@ #define SND_SOC_COMP_ORDER_LATE 1 #define SND_SOC_COMP_ORDER_LAST 2 +#define for_each_comp_order(order) \ + for (order = SND_SOC_COMP_ORDER_FIRST; \ + order <= SND_SOC_COMP_ORDER_LAST; \ + order++) + /* * Bias levels * diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 673a694ede3e..d8625ac2b201 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -992,14 +992,12 @@ static void soc_remove_dai_links(struct snd_soc_card *card) struct snd_soc_pcm_runtime *rtd; struct snd_soc_dai_link *link, *_link; - for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; - order++) { + for_each_comp_order(order) { for_each_card_rtds(card, rtd) soc_remove_link_dais(card, rtd, order); } - for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; - order++) { + for_each_comp_order(order) { for_each_card_rtds(card, rtd) soc_remove_link_components(card, rtd, order); } @@ -1617,8 +1615,7 @@ static int soc_probe_aux_devices(struct snd_soc_card *card) int order; int ret; - for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; - order++) { + for_each_comp_order(order) { list_for_each_entry(comp, &card->aux_comp_list, card_aux_list) { if (comp->driver->probe_order == order) { ret = soc_probe_component(card, comp); @@ -1640,8 +1637,7 @@ static void soc_remove_aux_devices(struct snd_soc_card *card) struct snd_soc_component *comp, *_comp; int order; - for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; - order++) { + for_each_comp_order(order) { list_for_each_entry_safe(comp, _comp, &card->aux_comp_list, card_aux_list) { @@ -2013,8 +2009,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) } /* probe all components used by DAI links on this card */ - for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; - order++) { + for_each_comp_order(order) { for_each_card_rtds(card, rtd) { ret = soc_probe_link_components(card, rtd, order); if (ret < 0) { @@ -2047,8 +2042,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) } /* probe all DAI links on this card */ - for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; - order++) { + for_each_comp_order(order) { for_each_card_rtds(card, rtd) { ret = soc_probe_link_dais(card, rtd, order); if (ret < 0) { From d2e24d64652bf9d272e5496ae8a562bc64facff3 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 18 Sep 2018 01:30:54 +0000 Subject: [PATCH 1195/1762] ASoC: add for_each_dpcm_fe() macro To be more readable code, this patch adds new for_each_dpcm_fe() macro, and replace existing code to it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/soc-dpcm.h | 3 +++ sound/soc/soc-pcm.c | 6 +++--- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/include/sound/soc-dpcm.h b/include/sound/soc-dpcm.h index 9bb92f187af8..f130de6cfe8e 100644 --- a/include/sound/soc-dpcm.h +++ b/include/sound/soc-dpcm.h @@ -103,6 +103,9 @@ struct snd_soc_dpcm_runtime { int trigger_pending; /* trigger cmd + 1 if pending, 0 if not */ }; +#define for_each_dpcm_fe(be, stream, dpcm) \ + list_for_each_entry(dpcm, &(be)->dpcm[stream].fe_clients, list_fe) + /* can this BE stop and free */ int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe, struct snd_soc_pcm_runtime *be, int stream); diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 09d0f668c78e..e7916630e6fa 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1252,7 +1252,7 @@ static void dpcm_be_reparent(struct snd_soc_pcm_runtime *fe, be_substream = snd_soc_dpcm_get_substream(be, stream); - list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { + for_each_dpcm_fe(be, stream, dpcm) { if (dpcm->fe == fe) continue; @@ -3219,7 +3219,7 @@ int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe, struct snd_soc_dpcm *dpcm; int state; - list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { + for_each_dpcm_fe(be, stream, dpcm) { if (dpcm->fe == fe) continue; @@ -3246,7 +3246,7 @@ int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe, struct snd_soc_dpcm *dpcm; int state; - list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { + for_each_dpcm_fe(be, stream, dpcm) { if (dpcm->fe == fe) continue; From 8d6258a4dd267838e2f10643c3d91b79fe75ef6e Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 18 Sep 2018 01:31:09 +0000 Subject: [PATCH 1196/1762] ASoC: add for_each_dpcm_be() macro To be more readable code, this patch adds new for_each_dpcm_be() macro, and replace existing code to it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/soc-dpcm.h | 7 ++++++ sound/soc/fsl/fsl_asrc_dma.c | 2 +- sound/soc/sh/rcar/ctu.c | 2 +- sound/soc/sh/rcar/src.c | 2 +- sound/soc/soc-compress.c | 4 +-- sound/soc/soc-pcm.c | 48 +++++++++++++++++------------------- 6 files changed, 35 insertions(+), 30 deletions(-) diff --git a/include/sound/soc-dpcm.h b/include/sound/soc-dpcm.h index f130de6cfe8e..4be3a2b7c106 100644 --- a/include/sound/soc-dpcm.h +++ b/include/sound/soc-dpcm.h @@ -106,6 +106,13 @@ struct snd_soc_dpcm_runtime { #define for_each_dpcm_fe(be, stream, dpcm) \ list_for_each_entry(dpcm, &(be)->dpcm[stream].fe_clients, list_fe) +#define for_each_dpcm_be(fe, stream, dpcm) \ + list_for_each_entry(dpcm, &(fe)->dpcm[stream].be_clients, list_be) +#define for_each_dpcm_be_safe(fe, stream, dpcm, _dpcm) \ + list_for_each_entry_safe(dpcm, _dpcm, &(fe)->dpcm[stream].be_clients, list_be) +#define for_each_dpcm_be_rollback(fe, stream, dpcm) \ + list_for_each_entry_continue_reverse(dpcm, &(fe)->dpcm[stream].be_clients, list_be) + /* can this BE stop and free */ int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe, struct snd_soc_pcm_runtime *be, int stream); diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c index 1033ac6631b0..01052a0808b0 100644 --- a/sound/soc/fsl/fsl_asrc_dma.c +++ b/sound/soc/fsl/fsl_asrc_dma.c @@ -151,7 +151,7 @@ static int fsl_asrc_dma_hw_params(struct snd_pcm_substream *substream, int ret; /* Fetch the Back-End dma_data from DPCM */ - list_for_each_entry(dpcm, &rtd->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(rtd, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_pcm_substream *substream_be; struct snd_soc_dai *dai = be->cpu_dai; diff --git a/sound/soc/sh/rcar/ctu.c b/sound/soc/sh/rcar/ctu.c index 6a55aa753003..ad702377a6c3 100644 --- a/sound/soc/sh/rcar/ctu.c +++ b/sound/soc/sh/rcar/ctu.c @@ -258,7 +258,7 @@ static int rsnd_ctu_hw_params(struct rsnd_mod *mod, struct snd_pcm_hw_params *be_params; int stream = substream->stream; - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { be_params = &dpcm->hw_params; if (params_channels(fe_params) != params_channels(be_params)) ctu->channels = params_channels(be_params); diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c index beccfbac7581..cd38a43b976f 100644 --- a/sound/soc/sh/rcar/src.c +++ b/sound/soc/sh/rcar/src.c @@ -158,7 +158,7 @@ static int rsnd_src_hw_params(struct rsnd_mod *mod, struct snd_soc_dpcm *dpcm; struct snd_pcm_hw_params *be_params; - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { be_params = &dpcm->hw_params; if (params_rate(fe_params) != params_rate(be_params)) diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 409d082e80d1..699397a09167 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -157,7 +157,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) ret = dpcm_be_dai_startup(fe, stream); if (ret < 0) { /* clean up all links */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) + for_each_dpcm_be(fe, stream, dpcm) dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; dpcm_be_disconnect(fe, stream); @@ -321,7 +321,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream) ret = dpcm_be_dai_shutdown(fe, stream); /* mark FE's links ready to prune */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) + for_each_dpcm_be(fe, stream, dpcm) dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index e7916630e6fa..03f36e534050 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -174,7 +174,7 @@ int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir, { struct snd_soc_dpcm *dpcm; - list_for_each_entry(dpcm, &fe->dpcm[dir].be_clients, list_be) { + for_each_dpcm_be(fe, dir, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; @@ -1211,7 +1211,7 @@ static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe, struct snd_soc_dpcm *dpcm; /* only add new dpcms */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { if (dpcm->be == be && dpcm->fe == fe) return 0; } @@ -1272,7 +1272,7 @@ void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream) { struct snd_soc_dpcm *dpcm, *d; - list_for_each_entry_safe(dpcm, d, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be_safe(fe, stream, dpcm, d) { dev_dbg(fe->dev, "ASoC: BE %s disconnect check for %s\n", stream ? "capture" : "playback", dpcm->be->dai_link->name); @@ -1438,7 +1438,7 @@ static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, int prune = 0; /* Destroy any old FE <--> BE connections */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { unsigned int i; /* is there a valid CPU DAI widget for this BE */ @@ -1544,7 +1544,7 @@ void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream) { struct snd_soc_dpcm *dpcm; - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) + for_each_dpcm_be(fe, stream, dpcm) dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; } @@ -1555,7 +1555,7 @@ static void dpcm_be_dai_startup_unwind(struct snd_soc_pcm_runtime *fe, struct snd_soc_dpcm *dpcm; /* disable any enabled and non active backends */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_pcm_substream *be_substream = @@ -1584,7 +1584,7 @@ int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream) int err, count = 0; /* only startup BE DAIs that are either sinks or sources to this FE DAI */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_pcm_substream *be_substream = @@ -1638,7 +1638,7 @@ int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream) unwind: /* disable any enabled and non active backends */ - list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be_rollback(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_pcm_substream *be_substream = snd_soc_dpcm_get_substream(be, stream); @@ -1695,7 +1695,7 @@ static void dpcm_runtime_merge_format(struct snd_pcm_substream *substream, * if FE want to use it (= dpcm_merged_format) */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_soc_dai_driver *codec_dai_drv; struct snd_soc_pcm_stream *codec_stream; @@ -1736,7 +1736,7 @@ static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream, * if FE want to use it (= dpcm_merged_chan) */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_soc_dai_driver *cpu_dai_drv = be->cpu_dai->driver; struct snd_soc_dai_driver *codec_dai_drv; @@ -1788,7 +1788,7 @@ static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream, * if FE want to use it (= dpcm_merged_chan) */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_soc_dai_driver *cpu_dai_drv = be->cpu_dai->driver; struct snd_soc_dai_driver *codec_dai_drv; @@ -1891,7 +1891,7 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream, } /* apply symmetry for BE */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_pcm_substream *be_substream = snd_soc_dpcm_get_substream(be, stream); @@ -1976,7 +1976,7 @@ int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream) struct snd_soc_dpcm *dpcm; /* only shutdown BEs that are either sinks or sources to this FE DAI */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_pcm_substream *be_substream = @@ -2040,7 +2040,7 @@ int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream) /* only hw_params backends that are either sinks or sources * to this frontend DAI */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_pcm_substream *be_substream = @@ -2109,7 +2109,7 @@ int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream) struct snd_soc_dpcm *dpcm; int ret; - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_pcm_substream *be_substream = @@ -2160,7 +2160,7 @@ int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream) unwind: /* disable any enabled and non active backends */ - list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be_rollback(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_pcm_substream *be_substream = snd_soc_dpcm_get_substream(be, stream); @@ -2240,7 +2240,7 @@ int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream, struct snd_soc_dpcm *dpcm; int ret = 0; - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_pcm_substream *be_substream = @@ -2426,7 +2426,7 @@ int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream) struct snd_soc_dpcm *dpcm; int ret = 0; - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_pcm_substream *be_substream = @@ -2636,7 +2636,7 @@ close: dpcm_be_dai_shutdown(fe, stream); disconnect: /* disconnect any non started BEs */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; @@ -2781,11 +2781,9 @@ out: int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute) { struct snd_soc_dpcm *dpcm; - struct list_head *clients = - &fe->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients; struct snd_soc_dai *dai; - list_for_each_entry(dpcm, clients, list_be) { + for_each_dpcm_be(fe, SNDRV_PCM_STREAM_PLAYBACK, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; int i; @@ -2834,7 +2832,7 @@ static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) ret = dpcm_fe_dai_startup(fe_substream); if (ret < 0) { /* clean up all links */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) + for_each_dpcm_be(fe, stream, dpcm) dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; dpcm_be_disconnect(fe, stream); @@ -2857,7 +2855,7 @@ static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream) ret = dpcm_fe_dai_shutdown(fe_substream); /* mark FE's links ready to prune */ - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) + for_each_dpcm_be(fe, stream, dpcm) dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; dpcm_be_disconnect(fe, stream); @@ -3326,7 +3324,7 @@ static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe, goto out; } - list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; params = &dpcm->hw_params; From fc795bf7224efda8c35e505966c2757856064247 Mon Sep 17 00:00:00 2001 From: Oder Chiou Date: Wed, 19 Sep 2018 09:56:47 +0800 Subject: [PATCH 1197/1762] ASoC: rt5663: Remove the boost volume in the beginning of playback The patch removes the boost volume in the beginning of playback while the DAC volume set to lower. Signed-off-by: Oder Chiou Signed-off-by: Mark Brown --- sound/soc/codecs/rt5663.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/rt5663.c b/sound/soc/codecs/rt5663.c index 9bd24ad42240..2444fad7c2df 100644 --- a/sound/soc/codecs/rt5663.c +++ b/sound/soc/codecs/rt5663.c @@ -72,6 +72,7 @@ struct rt5663_priv { static const struct reg_sequence rt5663_patch_list[] = { { 0x002a, 0x8020 }, { 0x0086, 0x0028 }, + { 0x0100, 0xa020 }, { 0x0117, 0x0f28 }, { 0x02fb, 0x8089 }, }; @@ -580,7 +581,7 @@ static const struct reg_default rt5663_reg[] = { { 0x00fd, 0x0001 }, { 0x00fe, 0x10ec }, { 0x00ff, 0x6406 }, - { 0x0100, 0xa0a0 }, + { 0x0100, 0xa020 }, { 0x0108, 0x4444 }, { 0x0109, 0x4444 }, { 0x010a, 0xaaaa }, @@ -2337,6 +2338,8 @@ static int rt5663_hp_event(struct snd_soc_dapm_widget *w, 0x8000); snd_soc_component_update_bits(component, RT5663_DEPOP_1, 0x3000, 0x3000); + snd_soc_component_update_bits(component, + RT5663_DIG_VOL_ZCD, 0x00c0, 0x0080); } break; @@ -2351,6 +2354,8 @@ static int rt5663_hp_event(struct snd_soc_dapm_widget *w, RT5663_OVCD_HP_MASK, RT5663_OVCD_HP_EN); snd_soc_component_update_bits(component, RT5663_DACREF_LDO, 0x3e0e, 0); + snd_soc_component_update_bits(component, + RT5663_DIG_VOL_ZCD, 0x00c0, 0); } break; From 8c6ec3613e7b0aade20a3196169c0bab32ed3e3f Mon Sep 17 00:00:00 2001 From: Davide Caratti Date: Wed, 19 Sep 2018 19:01:37 +0200 Subject: [PATCH 1198/1762] bnxt_en: don't try to offload VLAN 'modify' action bnxt offload code currently supports only 'push' and 'pop' operation: let .ndo_setup_tc() return -EOPNOTSUPP if VLAN 'modify' action is configured. Fixes: 2ae7408fedfe ("bnxt_en: bnxt: add TC flower filter offload support") Signed-off-by: Davide Caratti Acked-by: Sathya Perla Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c index 092c817f8f11..e1594c9df4c6 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c @@ -75,17 +75,23 @@ static int bnxt_tc_parse_redir(struct bnxt *bp, return 0; } -static void bnxt_tc_parse_vlan(struct bnxt *bp, - struct bnxt_tc_actions *actions, - const struct tc_action *tc_act) +static int bnxt_tc_parse_vlan(struct bnxt *bp, + struct bnxt_tc_actions *actions, + const struct tc_action *tc_act) { - if (tcf_vlan_action(tc_act) == TCA_VLAN_ACT_POP) { + switch (tcf_vlan_action(tc_act)) { + case TCA_VLAN_ACT_POP: actions->flags |= BNXT_TC_ACTION_FLAG_POP_VLAN; - } else if (tcf_vlan_action(tc_act) == TCA_VLAN_ACT_PUSH) { + break; + case TCA_VLAN_ACT_PUSH: actions->flags |= BNXT_TC_ACTION_FLAG_PUSH_VLAN; actions->push_vlan_tci = htons(tcf_vlan_push_vid(tc_act)); actions->push_vlan_tpid = tcf_vlan_push_proto(tc_act); + break; + default: + return -EOPNOTSUPP; } + return 0; } static int bnxt_tc_parse_tunnel_set(struct bnxt *bp, @@ -134,7 +140,9 @@ static int bnxt_tc_parse_actions(struct bnxt *bp, /* Push/pop VLAN */ if (is_tcf_vlan(tc_act)) { - bnxt_tc_parse_vlan(bp, actions, tc_act); + rc = bnxt_tc_parse_vlan(bp, actions, tc_act); + if (rc) + return rc; continue; } From d7ab5cdce54da631f0c8c11e506c974536a3581e Mon Sep 17 00:00:00 2001 From: Xin Long Date: Thu, 20 Sep 2018 17:27:28 +0800 Subject: [PATCH 1199/1762] sctp: update dst pmtu with the correct daddr When processing pmtu update from an icmp packet, it calls .update_pmtu with sk instead of skb in sctp_transport_update_pmtu. However for sctp, the daddr in the transport might be different from inet_sock->inet_daddr or sk->sk_v6_daddr, which is used to update or create the route cache. The incorrect daddr will cause a different route cache created for the path. So before calling .update_pmtu, inet_sock->inet_daddr/sk->sk_v6_daddr should be updated with the daddr in the transport, and update it back after it's done. The issue has existed since route exceptions introduction. Fixes: 4895c771c7f0 ("ipv4: Add FIB nexthop exceptions.") Reported-by: ian.periam@dialogic.com Signed-off-by: Xin Long Acked-by: Marcelo Ricardo Leitner Signed-off-by: David S. Miller --- net/sctp/transport.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/net/sctp/transport.c b/net/sctp/transport.c index 12cac85da994..033696e6f74f 100644 --- a/net/sctp/transport.c +++ b/net/sctp/transport.c @@ -260,6 +260,7 @@ void sctp_transport_pmtu(struct sctp_transport *transport, struct sock *sk) bool sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu) { struct dst_entry *dst = sctp_transport_dst_check(t); + struct sock *sk = t->asoc->base.sk; bool change = true; if (unlikely(pmtu < SCTP_DEFAULT_MINSEGMENT)) { @@ -271,12 +272,19 @@ bool sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu) pmtu = SCTP_TRUNC4(pmtu); if (dst) { - dst->ops->update_pmtu(dst, t->asoc->base.sk, NULL, pmtu); + struct sctp_pf *pf = sctp_get_pf_specific(dst->ops->family); + union sctp_addr addr; + + pf->af->from_sk(&addr, sk); + pf->to_sk_daddr(&t->ipaddr, sk); + dst->ops->update_pmtu(dst, sk, NULL, pmtu); + pf->to_sk_daddr(&addr, sk); + dst = sctp_transport_dst_check(t); } if (!dst) { - t->af_specific->get_dst(t, &t->saddr, &t->fl, t->asoc->base.sk); + t->af_specific->get_dst(t, &t->saddr, &t->fl, sk); dst = t->dst; } From 60489f085574157c343fc62a32f997fe7346a659 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Thu, 20 Sep 2018 09:31:10 +0200 Subject: [PATCH 1200/1762] spi: spi-mem: Add missing description for data.nbytes field Add a description for spi_mem_op.data.nbytes to the kerneldoc header. Fixes: c36ff266dc82 ("spi: Extend the core to ease integration of SPI memory controllers") Signed-off-by: Boris Brezillon Signed-off-by: Mark Brown --- include/linux/spi/spi-mem.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h index 62722fb7472d..0cfbb1ad8d96 100644 --- a/include/linux/spi/spi-mem.h +++ b/include/linux/spi/spi-mem.h @@ -79,6 +79,8 @@ enum spi_mem_data_dir { * @dummy.buswidth: number of IO lanes used to transmit the dummy bytes * @data.buswidth: number of IO lanes used to send/receive the data * @data.dir: direction of the transfer + * @data.nbytes: number of data bytes to send/receive. Can be zero if the + * operation does not involve transferring data * @data.buf.in: input buffer * @data.buf.out: output buffer */ From c949a8e8b43f2c75567269bcc9a50d704ae3c420 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Thu, 20 Sep 2018 09:31:11 +0200 Subject: [PATCH 1201/1762] spi: spi-mem: Move the DMA-able constraint doc to the kerneldoc header We'd better have that documented in the kerneldoc header, so that it's exposed to the doc generated by Sphinx. Signed-off-by: Boris Brezillon Signed-off-by: Mark Brown --- include/linux/spi/spi-mem.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h index 0cfbb1ad8d96..7195fbc234aa 100644 --- a/include/linux/spi/spi-mem.h +++ b/include/linux/spi/spi-mem.h @@ -81,8 +81,8 @@ enum spi_mem_data_dir { * @data.dir: direction of the transfer * @data.nbytes: number of data bytes to send/receive. Can be zero if the * operation does not involve transferring data - * @data.buf.in: input buffer - * @data.buf.out: output buffer + * @data.buf.in: input buffer (must be DMA-able) + * @data.buf.out: output buffer (must be DMA-able) */ struct spi_mem_op { struct { @@ -105,7 +105,6 @@ struct spi_mem_op { u8 buswidth; enum spi_mem_data_dir dir; unsigned int nbytes; - /* buf.{in,out} must be DMA-able. */ union { void *in; const void *out; From 37f31b6ca4311b94d985fb398a72e5399ad57925 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Mon, 3 Sep 2018 23:06:23 +0200 Subject: [PATCH 1202/1762] ubifs: Check for name being NULL while mounting The requested device name can be NULL or an empty string. Check for that and refuse to continue. UBIFS has to do this manually since we cannot use mount_bdev(), which checks for this condition. Fixes: 1e51764a3c2ac ("UBIFS: add new flash file system") Reported-by: syzbot+38bd0f7865e5c6379280@syzkaller.appspotmail.com Signed-off-by: Richard Weinberger --- fs/ubifs/super.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 23e7042666a7..87d08f738632 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -1954,6 +1954,9 @@ static struct ubi_volume_desc *open_ubi(const char *name, int mode) int dev, vol; char *endptr; + if (!name || !*name) + return ERR_PTR(-EINVAL); + /* First, try to open using the device node path method */ ubi = ubi_open_volume_path(name, mode); if (!IS_ERR(ubi)) From d3bdc016c598e09a4ddf17805d17d43759b0a582 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 12 Sep 2018 14:51:38 +0200 Subject: [PATCH 1203/1762] ubifs: drop false positive assertion The following sequence triggers ubifs_assert(c, c->lst.taken_empty_lebs > 0); at the end of ubifs_remount_fs(): mount -t ubifs /dev/ubi0_0 /mnt echo 1 > /sys/kernel/debug/ubifs/ubi0_0/ro_error umount /mnt mount -t ubifs -o ro /dev/ubix_y /mnt mount -o remount,ro /mnt The resulting UBIFS assert failed in ubifs_remount_fs at 1878 (pid 161) is a false positive. In the case above c->lst.taken_empty_lebs has never been changed from its initial zero value. This will only happen when the deferred recovery is done. Fix this by doing the assertion only when recovery has been done already. Signed-off-by: Sascha Hauer Signed-off-by: Richard Weinberger --- fs/ubifs/super.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 87d08f738632..bf000c8aeffb 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -1912,7 +1912,9 @@ static int ubifs_remount_fs(struct super_block *sb, int *flags, char *data) mutex_unlock(&c->bu_mutex); } - ubifs_assert(c, c->lst.taken_empty_lebs > 0); + if (!c->need_recovery) + ubifs_assert(c, c->lst.taken_empty_lebs > 0); + return 0; } From f061c1cc404a618858a77aea233fde0aeaad2f2d Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Sun, 16 Sep 2018 23:57:35 +0200 Subject: [PATCH 1204/1762] Revert "ubifs: xattr: Don't operate on deleted inodes" This reverts commit 11a6fc3dc743e22fb50f2196ec55bee5140d3c52. UBIFS wants to assert that xattr operations are only issued on files with positive link count. The said patch made this operations return -ENOENT for unlinked files such that the asserts will no longer trigger. This was wrong since xattr operations are perfectly fine on unlinked files. Instead the assertions need to be fixed/removed. Cc: Fixes: 11a6fc3dc743 ("ubifs: xattr: Don't operate on deleted inodes") Reported-by: Koen Vandeputte Tested-by: Joel Stanley Signed-off-by: Richard Weinberger --- fs/ubifs/xattr.c | 24 ------------------------ 1 file changed, 24 deletions(-) diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c index 61afdfee4b28..f5ad1ede7990 100644 --- a/fs/ubifs/xattr.c +++ b/fs/ubifs/xattr.c @@ -152,12 +152,6 @@ static int create_xattr(struct ubifs_info *c, struct inode *host, ui->data_len = size; mutex_lock(&host_ui->ui_mutex); - - if (!host->i_nlink) { - err = -ENOENT; - goto out_noent; - } - host->i_ctime = current_time(host); host_ui->xattr_cnt += 1; host_ui->xattr_size += CALC_DENT_SIZE(fname_len(nm)); @@ -190,7 +184,6 @@ out_cancel: host_ui->xattr_size -= CALC_XATTR_BYTES(size); host_ui->xattr_names -= fname_len(nm); host_ui->flags &= ~UBIFS_CRYPT_FL; -out_noent: mutex_unlock(&host_ui->ui_mutex); out_free: make_bad_inode(inode); @@ -242,12 +235,6 @@ static int change_xattr(struct ubifs_info *c, struct inode *host, mutex_unlock(&ui->ui_mutex); mutex_lock(&host_ui->ui_mutex); - - if (!host->i_nlink) { - err = -ENOENT; - goto out_noent; - } - host->i_ctime = current_time(host); host_ui->xattr_size -= CALC_XATTR_BYTES(old_size); host_ui->xattr_size += CALC_XATTR_BYTES(size); @@ -269,7 +256,6 @@ static int change_xattr(struct ubifs_info *c, struct inode *host, out_cancel: host_ui->xattr_size -= CALC_XATTR_BYTES(size); host_ui->xattr_size += CALC_XATTR_BYTES(old_size); -out_noent: mutex_unlock(&host_ui->ui_mutex); make_bad_inode(inode); out_free: @@ -496,12 +482,6 @@ static int remove_xattr(struct ubifs_info *c, struct inode *host, return err; mutex_lock(&host_ui->ui_mutex); - - if (!host->i_nlink) { - err = -ENOENT; - goto out_noent; - } - host->i_ctime = current_time(host); host_ui->xattr_cnt -= 1; host_ui->xattr_size -= CALC_DENT_SIZE(fname_len(nm)); @@ -521,7 +501,6 @@ out_cancel: host_ui->xattr_size += CALC_DENT_SIZE(fname_len(nm)); host_ui->xattr_size += CALC_XATTR_BYTES(ui->data_len); host_ui->xattr_names += fname_len(nm); -out_noent: mutex_unlock(&host_ui->ui_mutex); ubifs_release_budget(c, &req); make_bad_inode(inode); @@ -561,9 +540,6 @@ static int ubifs_xattr_remove(struct inode *host, const char *name) ubifs_assert(c, inode_is_locked(host)); - if (!host->i_nlink) - return -ENOENT; - if (fname_len(&nm) > UBIFS_MAX_NLEN) return -ENAMETOOLONG; From a8b3bb338e4ee4cc84a2b9a6fdf27049b84baa59 Mon Sep 17 00:00:00 2001 From: Fenghua Yu Date: Thu, 20 Sep 2018 12:37:08 -0700 Subject: [PATCH 1205/1762] x86/intel_rdt: Add Reinette as co-maintainer for RDT Reinette Chatre is doing great job on enabling pseudo-locking and other features in RDT. Add her as co-maintainer for RDT. Suggested-by: Thomas Gleixner Signed-off-by: Fenghua Yu Signed-off-by: Thomas Gleixner Acked-by: Ingo Molnar Acked-by: Reinette Chatre Cc: "H Peter Anvin" Cc: "Tony Luck" Link: https://lkml.kernel.org/r/1537472228-221799-1-git-send-email-fenghua.yu@intel.com --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index 091e66b60cd2..140ea6ee3ac8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12260,6 +12260,7 @@ F: Documentation/networking/rds.txt RDT - RESOURCE ALLOCATION M: Fenghua Yu +M: Reinette Chatre L: linux-kernel@vger.kernel.org S: Supported F: arch/x86/kernel/cpu/intel_rdt* From 9068a427ee0beb1365a0925e8c33f338f09f5e97 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 19 Sep 2018 14:33:14 +0200 Subject: [PATCH 1206/1762] MAINTAINERS: Add X86 MM entry Dave, Andy and Peter are de facto overseing the mm parts of X86. Add an explicit maintainers entry. Signed-off-by: Thomas Gleixner Acked-by: Dave Hansen Acked-by: Andy Lutomirski Acked-by: Peter Zijlstra Acked-by: Ingo Molnar --- MAINTAINERS | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 140ea6ee3ac8..80a311252b04 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15943,6 +15943,15 @@ M: Borislav Petkov S: Maintained F: arch/x86/kernel/cpu/microcode/* +X86 MM +M: Dave Hansen +M: Andy Lutomirski +M: Peter Zijlstra +L: linux-kernel@vger.kernel.org +T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/mm +S: Maintained +F: arch/x86/mm/ + X86 PLATFORM DRIVERS M: Darren Hart M: Andy Shevchenko From f83606f5eb007adc33bc8541ede00590f477bdeb Mon Sep 17 00:00:00 2001 From: KJ Tsanaktsidis Date: Thu, 20 Sep 2018 12:22:25 -0700 Subject: [PATCH 1207/1762] fork: report pid exhaustion correctly Make the clone and fork syscalls return EAGAIN when the limit on the number of pids /proc/sys/kernel/pid_max is exceeded. Currently, when the pid_max limit is exceeded, the kernel will return ENOSPC from the fork and clone syscalls. This is contrary to the documented behaviour, which explicitly calls out the pid_max case as one where EAGAIN should be returned. It also leads to really confusing error messages in userspace programs which will complain about a lack of disk space when they fail to create processes/threads for this reason. This error is being returned because alloc_pid() uses the idr api to find a new pid; when there are none available, idr_alloc_cyclic() returns -ENOSPC, and this is being propagated back to userspace. This behaviour has been broken before, and was explicitly fixed in commit 35f71bc0a09a ("fork: report pid reservation failure properly"), so I think -EAGAIN is definitely the right thing to return in this case. The current behaviour change dates from commit 95846ecf9dac ("pid: replace pid bitmap implementation with IDR AIP") and was I believe unintentional. This patch has no impact on the case where allocating a pid fails because the child reaper for the namespace is dead; that case will still return -ENOMEM. Link: http://lkml.kernel.org/r/20180903111016.46461-1-ktsanaktsidis@zendesk.com Fixes: 95846ecf9dac ("pid: replace pid bitmap implementation with IDR AIP") Signed-off-by: KJ Tsanaktsidis Reviewed-by: Andrew Morton Acked-by: Michal Hocko Cc: Gargi Sharma Cc: Rik van Riel Cc: Oleg Nesterov Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- kernel/pid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/pid.c b/kernel/pid.c index de1cfc4f75a2..cdf63e53a014 100644 --- a/kernel/pid.c +++ b/kernel/pid.c @@ -195,7 +195,7 @@ struct pid *alloc_pid(struct pid_namespace *ns) idr_preload_end(); if (nr < 0) { - retval = nr; + retval = (nr == -ENOSPC) ? -EAGAIN : nr; goto out_free; } From 889c695d419f19e5db52592dafbaf26143c36d1f Mon Sep 17 00:00:00 2001 From: Pasha Tatashin Date: Thu, 20 Sep 2018 12:22:30 -0700 Subject: [PATCH 1208/1762] mm: disable deferred struct page for 32-bit arches Deferred struct page init is needed only on systems with large amount of physical memory to improve boot performance. 32-bit systems do not benefit from this feature. Jiri reported a problem where deferred struct pages do not work well with x86-32: [ 0.035162] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) [ 0.035725] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) [ 0.036269] Initializing CPU#0 [ 0.036513] Initializing HighMem for node 0 (00036ffe:0007ffe0) [ 0.038459] page:f6780000 is uninitialized and poisoned [ 0.038460] raw: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff [ 0.039509] page dumped because: VM_BUG_ON_PAGE(1 && PageCompound(page)) [ 0.040038] ------------[ cut here ]------------ [ 0.040399] kernel BUG at include/linux/page-flags.h:293! [ 0.040823] invalid opcode: 0000 [#1] SMP PTI [ 0.041166] CPU: 0 PID: 0 Comm: swapper Not tainted 4.19.0-rc1_pt_jiri #9 [ 0.041694] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-20171110_100015-anatol 04/01/2014 [ 0.042496] EIP: free_highmem_page+0x64/0x80 [ 0.042839] Code: 13 46 d8 c1 e8 18 5d 83 e0 03 8d 04 c0 c1 e0 06 ff 80 ec 5f 44 d8 c3 8d b4 26 00 00 00 00 ba 08 65 28 d8 89 d8 e8 fc 71 02 00 <0f> 0b 8d 76 00 8d bc 27 00 00 00 00 ba d0 b1 26 d8 89 d8 e8 e4 71 [ 0.044338] EAX: 0000003c EBX: f6780000 ECX: 00000000 EDX: d856cbe8 [ 0.044868] ESI: 0007ffe0 EDI: d838df20 EBP: d838df00 ESP: d838defc [ 0.045372] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210086 [ 0.045913] CR0: 80050033 CR2: 00000000 CR3: 18556000 CR4: 00040690 [ 0.046413] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 0.046913] DR6: fffe0ff0 DR7: 00000400 [ 0.047220] Call Trace: [ 0.047419] add_highpages_with_active_regions+0xbd/0x10d [ 0.047854] set_highmem_pages_init+0x5b/0x71 [ 0.048202] mem_init+0x2b/0x1e8 [ 0.048460] start_kernel+0x1d2/0x425 [ 0.048757] i386_start_kernel+0x93/0x97 [ 0.049073] startup_32_smp+0x164/0x168 [ 0.049379] Modules linked in: [ 0.049626] ---[ end trace 337949378db0abbb ]--- We free highmem pages before their struct pages are initialized: mem_init() set_highmem_pages_init() add_highpages_with_active_regions() free_highmem_page() .. Access uninitialized struct page here.. Because there is no reason to have this feature on 32-bit systems, just disable it. Link: http://lkml.kernel.org/r/20180831150506.31246-1-pavel.tatashin@microsoft.com Fixes: 2e3ca40f03bb ("mm: relax deferred struct page requirements") Signed-off-by: Pavel Tatashin Reported-by: Jiri Slaby Acked-by: Michal Hocko Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/Kconfig b/mm/Kconfig index a550635ea5c3..de64ea658716 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -637,6 +637,7 @@ config DEFERRED_STRUCT_PAGE_INIT depends on NO_BOOTMEM depends on SPARSEMEM depends on !NEED_PER_CPU_KM + depends on 64BIT help Ordinarily all struct pages are initialised during early boot in a single thread. On very large machines this can take a considerable From a1b3d2f217cf51505858c5c160abef96c3e91721 Mon Sep 17 00:00:00 2001 From: Dominique Martinet Date: Thu, 20 Sep 2018 12:22:35 -0700 Subject: [PATCH 1209/1762] fs/proc/kcore.c: fix invalid memory access in multi-page read optimization The 'm' kcore_list item could point to kclist_head, and it is incorrect to look at m->addr / m->size in this case. There is no choice but to run through the list of entries for every address if we did not find any entry in the previous iteration Reset 'm' to NULL in that case at Omar Sandoval's suggestion. [akpm@linux-foundation.org: add comment] Link: http://lkml.kernel.org/r/1536100702-28706-1-git-send-email-asmadeus@codewreck.org Fixes: bf991c2231117 ("proc/kcore: optimize multiple page reads") Signed-off-by: Dominique Martinet Reviewed-by: Andrew Morton Cc: Omar Sandoval Cc: Alexey Dobriyan Cc: Eric Biederman Cc: James Morse Cc: Bhupesh Sharma Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- fs/proc/kcore.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c index ad72261ee3fe..d297fe4472a9 100644 --- a/fs/proc/kcore.c +++ b/fs/proc/kcore.c @@ -464,6 +464,7 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos) ret = -EFAULT; goto out; } + m = NULL; /* skip the list anchor */ } else if (m->type == KCORE_VMALLOC) { vread(buf, (char *)start, tsz); /* we have to zero-fill user buffer even if no read */ From b45d71fb89ab8adfe727b9d0ee188ed58582a647 Mon Sep 17 00:00:00 2001 From: "Joel Fernandes (Google)" Date: Thu, 20 Sep 2018 12:22:39 -0700 Subject: [PATCH 1210/1762] mm: shmem.c: Correctly annotate new inodes for lockdep Directories and inodes don't necessarily need to be in the same lockdep class. For ex, hugetlbfs splits them out too to prevent false positives in lockdep. Annotate correctly after new inode creation. If its a directory inode, it will be put into a different class. This should fix a lockdep splat reported by syzbot: > ====================================================== > WARNING: possible circular locking dependency detected > 4.18.0-rc8-next-20180810+ #36 Not tainted > ------------------------------------------------------ > syz-executor900/4483 is trying to acquire lock: > 00000000d2bfc8fe (&sb->s_type->i_mutex_key#9){++++}, at: inode_lock > include/linux/fs.h:765 [inline] > 00000000d2bfc8fe (&sb->s_type->i_mutex_key#9){++++}, at: > shmem_fallocate+0x18b/0x12e0 mm/shmem.c:2602 > > but task is already holding lock: > 0000000025208078 (ashmem_mutex){+.+.}, at: ashmem_shrink_scan+0xb4/0x630 > drivers/staging/android/ashmem.c:448 > > which lock already depends on the new lock. > > -> #2 (ashmem_mutex){+.+.}: > __mutex_lock_common kernel/locking/mutex.c:925 [inline] > __mutex_lock+0x171/0x1700 kernel/locking/mutex.c:1073 > mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1088 > ashmem_mmap+0x55/0x520 drivers/staging/android/ashmem.c:361 > call_mmap include/linux/fs.h:1844 [inline] > mmap_region+0xf27/0x1c50 mm/mmap.c:1762 > do_mmap+0xa10/0x1220 mm/mmap.c:1535 > do_mmap_pgoff include/linux/mm.h:2298 [inline] > vm_mmap_pgoff+0x213/0x2c0 mm/util.c:357 > ksys_mmap_pgoff+0x4da/0x660 mm/mmap.c:1585 > __do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] > __se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline] > __x64_sys_mmap+0xe9/0x1b0 arch/x86/kernel/sys_x86_64.c:91 > do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > > -> #1 (&mm->mmap_sem){++++}: > __might_fault+0x155/0x1e0 mm/memory.c:4568 > _copy_to_user+0x30/0x110 lib/usercopy.c:25 > copy_to_user include/linux/uaccess.h:155 [inline] > filldir+0x1ea/0x3a0 fs/readdir.c:196 > dir_emit_dot include/linux/fs.h:3464 [inline] > dir_emit_dots include/linux/fs.h:3475 [inline] > dcache_readdir+0x13a/0x620 fs/libfs.c:193 > iterate_dir+0x48b/0x5d0 fs/readdir.c:51 > __do_sys_getdents fs/readdir.c:231 [inline] > __se_sys_getdents fs/readdir.c:212 [inline] > __x64_sys_getdents+0x29f/0x510 fs/readdir.c:212 > do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > > -> #0 (&sb->s_type->i_mutex_key#9){++++}: > lock_acquire+0x1e4/0x540 kernel/locking/lockdep.c:3924 > down_write+0x8f/0x130 kernel/locking/rwsem.c:70 > inode_lock include/linux/fs.h:765 [inline] > shmem_fallocate+0x18b/0x12e0 mm/shmem.c:2602 > ashmem_shrink_scan+0x236/0x630 drivers/staging/android/ashmem.c:455 > ashmem_ioctl+0x3ae/0x13a0 drivers/staging/android/ashmem.c:797 > vfs_ioctl fs/ioctl.c:46 [inline] > file_ioctl fs/ioctl.c:501 [inline] > do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 > ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 > __do_sys_ioctl fs/ioctl.c:709 [inline] > __se_sys_ioctl fs/ioctl.c:707 [inline] > __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 > do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > > other info that might help us debug this: > > Chain exists of: > &sb->s_type->i_mutex_key#9 --> &mm->mmap_sem --> ashmem_mutex > > Possible unsafe locking scenario: > > CPU0 CPU1 > ---- ---- > lock(ashmem_mutex); > lock(&mm->mmap_sem); > lock(ashmem_mutex); > lock(&sb->s_type->i_mutex_key#9); > > *** DEADLOCK *** > > 1 lock held by syz-executor900/4483: > #0: 0000000025208078 (ashmem_mutex){+.+.}, at: > ashmem_shrink_scan+0xb4/0x630 drivers/staging/android/ashmem.c:448 Link: http://lkml.kernel.org/r/20180821231835.166639-1-joel@joelfernandes.org Signed-off-by: Joel Fernandes (Google) Reported-by: syzbot Reviewed-by: NeilBrown Suggested-by: NeilBrown Cc: Matthew Wilcox Cc: Peter Zijlstra Cc: Hugh Dickins Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/shmem.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/shmem.c b/mm/shmem.c index 0376c124b043..446942677cd4 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -2227,6 +2227,8 @@ static struct inode *shmem_get_inode(struct super_block *sb, const struct inode mpol_shared_policy_init(&info->policy, NULL); break; } + + lockdep_annotate_inode_mutex_key(inode); } else shmem_free_inode(sb); return inode; From 3bf181bc5d8bc86f04ffd538d7fda9e69af1f2c2 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Thu, 20 Sep 2018 12:22:43 -0700 Subject: [PATCH 1211/1762] kernel/sys.c: remove duplicated include Link: http://lkml.kernel.org/r/20180821133424.18716-1-yuehaibing@huawei.com Signed-off-by: YueHaibing Reviewed-by: Andrew Morton Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- kernel/sys.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/kernel/sys.c b/kernel/sys.c index cf5c67533ff1..123bd73046ec 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -71,9 +71,6 @@ #include #include -/* Hardening for Spectre-v1 */ -#include - #include "uid16.h" #ifndef SET_UNALIGN_CTL From 172b06c32b949759fe6313abec514bc4f15014f4 Mon Sep 17 00:00:00 2001 From: Roman Gushchin Date: Thu, 20 Sep 2018 12:22:46 -0700 Subject: [PATCH 1212/1762] mm: slowly shrink slabs with a relatively small number of objects 9092c71bb724 ("mm: use sc->priority for slab shrink targets") changed the way that the target slab pressure is calculated and made it priority-based: delta = freeable >> priority; delta *= 4; do_div(delta, shrinker->seeks); The problem is that on a default priority (which is 12) no pressure is applied at all, if the number of potentially reclaimable objects is less than 4096 (1<<12). This causes the last objects on slab caches of no longer used cgroups to (almost) never get reclaimed. It's obviously a waste of memory. It can be especially painful, if these stale objects are holding a reference to a dying cgroup. Slab LRU lists are reparented on memcg offlining, but corresponding objects are still holding a reference to the dying cgroup. If we don't scan these objects, the dying cgroup can't go away. Most likely, the parent cgroup hasn't any directly charged objects, only remaining objects from dying children cgroups. So it can easily hold a reference to hundreds of dying cgroups. If there are no big spikes in memory pressure, and new memory cgroups are created and destroyed periodically, this causes the number of dying cgroups grow steadily, causing a slow-ish and hard-to-detect memory "leak". It's not a real leak, as the memory can be eventually reclaimed, but it could not happen in a real life at all. I've seen hosts with a steadily climbing number of dying cgroups, which doesn't show any signs of a decline in months, despite the host is loaded with a production workload. It is an obvious waste of memory, and to prevent it, let's apply a minimal pressure even on small shrinker lists. E.g. if there are freeable objects, let's scan at least min(freeable, scan_batch) objects. This fix significantly improves a chance of a dying cgroup to be reclaimed, and together with some previous patches stops the steady growth of the dying cgroups number on some of our hosts. Link: http://lkml.kernel.org/r/20180905230759.12236-1-guro@fb.com Fixes: 9092c71bb724 ("mm: use sc->priority for slab shrink targets") Signed-off-by: Roman Gushchin Acked-by: Rik van Riel Cc: Josef Bacik Cc: Johannes Weiner Cc: Shakeel Butt Cc: Michal Hocko Cc: Vladimir Davydov Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/vmscan.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/mm/vmscan.c b/mm/vmscan.c index 7e7d25504651..c7ce2c161225 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -476,6 +476,17 @@ static unsigned long do_shrink_slab(struct shrink_control *shrinkctl, delta = freeable >> priority; delta *= 4; do_div(delta, shrinker->seeks); + + /* + * Make sure we apply some minimal pressure on default priority + * even on small cgroups. Stale objects are not only consuming memory + * by themselves, but can also hold a reference to a dying cgroup, + * preventing it from being reclaimed. A dying cgroup with all + * corresponding structures like per-cpu stats and kmem caches + * can be really big, so it may lead to a significant waste of memory. + */ + delta = max_t(unsigned long long, delta, min(freeable, batch_size)); + total_scan += delta; if (total_scan < 0) { pr_err("shrink_slab: %pF negative objects to delete nr=%ld\n", From 234b69e3e089d850a98e7b3145bd00e9b52b1111 Mon Sep 17 00:00:00 2001 From: Junxiao Bi Date: Thu, 20 Sep 2018 12:22:51 -0700 Subject: [PATCH 1213/1762] ocfs2: fix ocfs2 read block panic While reading block, it is possible that io error return due to underlying storage issue, in this case, BH_NeedsValidate was left in the buffer head. Then when reading the very block next time, if it was already linked into journal, that will trigger the following panic. [203748.702517] kernel BUG at fs/ocfs2/buffer_head_io.c:342! [203748.702533] invalid opcode: 0000 [#1] SMP [203748.702561] Modules linked in: ocfs2 ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm ocfs2_nodemanager ocfs2_stackglue configfs sunrpc dm_switch dm_queue_length dm_multipath bonding be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i iw_cxgb4 cxgb4 cxgb3i libcxgbi iw_cxgb3 cxgb3 mdio ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr ipv6 iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ipmi_devintf iTCO_wdt iTCO_vendor_support dcdbas ipmi_ssif i2c_core ipmi_si ipmi_msghandler acpi_pad pcspkr sb_edac edac_core lpc_ich mfd_core shpchp sg tg3 ptp pps_core ext4 jbd2 mbcache2 sr_mod cdrom sd_mod ahci libahci megaraid_sas wmi dm_mirror dm_region_hash dm_log dm_mod [203748.703024] CPU: 7 PID: 38369 Comm: touch Not tainted 4.1.12-124.18.6.el6uek.x86_64 #2 [203748.703045] Hardware name: Dell Inc. PowerEdge R620/0PXXHP, BIOS 2.5.2 01/28/2015 [203748.703067] task: ffff880768139c00 ti: ffff88006ff48000 task.ti: ffff88006ff48000 [203748.703088] RIP: 0010:[] [] ocfs2_read_blocks+0x669/0x7f0 [ocfs2] [203748.703130] RSP: 0018:ffff88006ff4b818 EFLAGS: 00010206 [203748.703389] RAX: 0000000008620029 RBX: ffff88006ff4b910 RCX: 0000000000000000 [203748.703885] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 00000000023079fe [203748.704382] RBP: ffff88006ff4b8d8 R08: 0000000000000000 R09: ffff8807578c25b0 [203748.704877] R10: 000000000f637376 R11: 000000003030322e R12: 0000000000000000 [203748.705373] R13: ffff88006ff4b910 R14: ffff880732fe38f0 R15: 0000000000000000 [203748.705871] FS: 00007f401992c700(0000) GS:ffff880bfebc0000(0000) knlGS:0000000000000000 [203748.706370] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [203748.706627] CR2: 00007f4019252440 CR3: 00000000a621e000 CR4: 0000000000060670 [203748.707124] Stack: [203748.707371] ffff88006ff4b828 ffffffffa0609f52 ffff88006ff4b838 0000000000000001 [203748.707885] 0000000000000000 0000000000000000 ffff880bf67c3800 ffffffffa05eca00 [203748.708399] 00000000023079ff ffffffff81c58b80 0000000000000000 0000000000000000 [203748.708915] Call Trace: [203748.709175] [] ? ocfs2_inode_cache_io_unlock+0x12/0x20 [ocfs2] [203748.709680] [] ? ocfs2_empty_dir_filldir+0x80/0x80 [ocfs2] [203748.710185] [] ocfs2_read_dir_block_direct+0x3b/0x200 [ocfs2] [203748.710691] [] ocfs2_prepare_dx_dir_for_insert.isra.57+0x19f/0xf60 [ocfs2] [203748.711204] [] ? ocfs2_metadata_cache_io_unlock+0x1f/0x30 [ocfs2] [203748.711716] [] ocfs2_prepare_dir_for_insert+0x13a/0x890 [ocfs2] [203748.712227] [] ? ocfs2_check_dir_for_entry+0x8e/0x140 [ocfs2] [203748.712737] [] ocfs2_mknod+0x4b2/0x1370 [ocfs2] [203748.713003] [] ocfs2_create+0x65/0x170 [ocfs2] [203748.713263] [] vfs_create+0xdb/0x150 [203748.713518] [] do_last+0x815/0x1210 [203748.713772] [] ? path_init+0xb9/0x450 [203748.714123] [] path_openat+0x80/0x600 [203748.714378] [] ? handle_pte_fault+0xd15/0x1620 [203748.714634] [] do_filp_open+0x3a/0xb0 [203748.714888] [] ? __alloc_fd+0xa7/0x130 [203748.715143] [] do_sys_open+0x12c/0x220 [203748.715403] [] ? syscall_trace_enter_phase1+0x11b/0x180 [203748.715668] [] ? system_call_after_swapgs+0xe9/0x190 [203748.715928] [] SyS_open+0x1e/0x20 [203748.716184] [] system_call_fastpath+0x18/0xd7 [203748.716440] Code: 00 00 48 8b 7b 08 48 83 c3 10 45 89 f8 44 89 e1 44 89 f2 4c 89 ee e8 07 06 11 e1 48 8b 03 48 85 c0 75 df 8b 5d c8 e9 4d fa ff ff <0f> 0b 48 8b 7d a0 e8 dc c6 06 00 48 b8 00 00 00 00 00 00 00 10 [203748.717505] RIP [] ocfs2_read_blocks+0x669/0x7f0 [ocfs2] [203748.717775] RSP Joesph ever reported a similar panic. Link: https://oss.oracle.com/pipermail/ocfs2-devel/2013-May/008931.html Link: http://lkml.kernel.org/r/20180912063207.29484-1-junxiao.bi@oracle.com Signed-off-by: Junxiao Bi Cc: Joseph Qi Cc: Mark Fasheh Cc: Joel Becker Cc: Changwei Ge Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- fs/ocfs2/buffer_head_io.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ocfs2/buffer_head_io.c b/fs/ocfs2/buffer_head_io.c index d9ebe11c8990..1d098c3c00e0 100644 --- a/fs/ocfs2/buffer_head_io.c +++ b/fs/ocfs2/buffer_head_io.c @@ -342,6 +342,7 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr, * for this bh as it's not marked locally * uptodate. */ status = -EIO; + clear_buffer_needs_validate(bh); put_bh(bh); bhs[i] = NULL; continue; From 05ab1d8a4b36ee912b7087c6da127439ed0a903e Mon Sep 17 00:00:00 2001 From: Feng Tang Date: Thu, 20 Sep 2018 10:58:28 +0800 Subject: [PATCH 1214/1762] x86/mm: Expand static page table for fixmap space We met a kernel panic when enabling earlycon, which is due to the fixmap address of earlycon is not statically setup. Currently the static fixmap setup in head_64.S only covers 2M virtual address space, while it actually could be in 4M space with different kernel configurations, e.g. when VSYSCALL emulation is disabled. So increase the static space to 4M for now by defining FIXMAP_PMD_NUM to 2, and add a build time check to ensure that the fixmap is covered by the initial static page tables. Fixes: 1ad83c858c7d ("x86_64,vsyscall: Make vsyscall emulation configurable") Suggested-by: Thomas Gleixner Signed-off-by: Feng Tang Signed-off-by: Thomas Gleixner Tested-by: kernel test robot Reviewed-by: Juergen Gross (Xen parts) Cc: H Peter Anvin Cc: Peter Zijlstra Cc: Michal Hocko Cc: Yinghai Lu Cc: Dave Hansen Cc: Andi Kleen Cc: Andy Lutomirsky Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180920025828.23699-1-feng.tang@intel.com --- arch/x86/include/asm/fixmap.h | 10 ++++++++++ arch/x86/include/asm/pgtable_64.h | 3 ++- arch/x86/kernel/head64.c | 4 +++- arch/x86/kernel/head_64.S | 16 ++++++++++++---- arch/x86/mm/pgtable.c | 9 +++++++++ arch/x86/xen/mmu_pv.c | 8 ++++++-- 6 files changed, 42 insertions(+), 8 deletions(-) diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h index e203169931c7..6390bd8c141b 100644 --- a/arch/x86/include/asm/fixmap.h +++ b/arch/x86/include/asm/fixmap.h @@ -14,6 +14,16 @@ #ifndef _ASM_X86_FIXMAP_H #define _ASM_X86_FIXMAP_H +/* + * Exposed to assembly code for setting up initial page tables. Cannot be + * calculated in assembly code (fixmap entries are an enum), but is sanity + * checked in the actual fixmap C code to make sure that the fixmap is + * covered fully. + */ +#define FIXMAP_PMD_NUM 2 +/* fixmap starts downwards from the 507th entry in level2_fixmap_pgt */ +#define FIXMAP_PMD_TOP 507 + #ifndef __ASSEMBLY__ #include #include diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h index ce2b59047cb8..9c85b54bf03c 100644 --- a/arch/x86/include/asm/pgtable_64.h +++ b/arch/x86/include/asm/pgtable_64.h @@ -14,6 +14,7 @@ #include #include #include +#include extern p4d_t level4_kernel_pgt[512]; extern p4d_t level4_ident_pgt[512]; @@ -22,7 +23,7 @@ extern pud_t level3_ident_pgt[512]; extern pmd_t level2_kernel_pgt[512]; extern pmd_t level2_fixmap_pgt[512]; extern pmd_t level2_ident_pgt[512]; -extern pte_t level1_fixmap_pgt[512]; +extern pte_t level1_fixmap_pgt[512 * FIXMAP_PMD_NUM]; extern pgd_t init_top_pgt[]; #define swapper_pg_dir init_top_pgt diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index c16af27eb23f..ddee1f0870c4 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -35,6 +35,7 @@ #include #include #include +#include /* * Manage page tables very early on. @@ -166,7 +167,8 @@ unsigned long __head __startup_64(unsigned long physaddr, pud[511] += load_delta; pmd = fixup_pointer(level2_fixmap_pgt, physaddr); - pmd[506] += load_delta; + for (i = FIXMAP_PMD_TOP; i > FIXMAP_PMD_TOP - FIXMAP_PMD_NUM; i--) + pmd[i] += load_delta; /* * Set up the identity mapping for the switchover. These diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S index 15ebc2fc166e..a3618cf04cf6 100644 --- a/arch/x86/kernel/head_64.S +++ b/arch/x86/kernel/head_64.S @@ -24,6 +24,7 @@ #include "../entry/calling.h" #include #include +#include #ifdef CONFIG_PARAVIRT #include @@ -445,13 +446,20 @@ NEXT_PAGE(level2_kernel_pgt) KERNEL_IMAGE_SIZE/PMD_SIZE) NEXT_PAGE(level2_fixmap_pgt) - .fill 506,8,0 - .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE_NOENC - /* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */ - .fill 5,8,0 + .fill (512 - 4 - FIXMAP_PMD_NUM),8,0 + pgtno = 0 + .rept (FIXMAP_PMD_NUM) + .quad level1_fixmap_pgt + (pgtno << PAGE_SHIFT) - __START_KERNEL_map \ + + _PAGE_TABLE_NOENC; + pgtno = pgtno + 1 + .endr + /* 6 MB reserved space + a 2MB hole */ + .fill 4,8,0 NEXT_PAGE(level1_fixmap_pgt) + .rept (FIXMAP_PMD_NUM) .fill 512,8,0 + .endr #undef PMDS diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index ae394552fb94..089e78c4effd 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -637,6 +637,15 @@ void __native_set_fixmap(enum fixed_addresses idx, pte_t pte) { unsigned long address = __fix_to_virt(idx); +#ifdef CONFIG_X86_64 + /* + * Ensure that the static initial page tables are covering the + * fixmap completely. + */ + BUILD_BUG_ON(__end_of_permanent_fixed_addresses > + (FIXMAP_PMD_NUM * PTRS_PER_PTE)); +#endif + if (idx >= __end_of_fixed_addresses) { BUG(); return; diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c index 2fe5c9b1816b..dd461c0167ef 100644 --- a/arch/x86/xen/mmu_pv.c +++ b/arch/x86/xen/mmu_pv.c @@ -1907,7 +1907,7 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn) /* L3_k[511] -> level2_fixmap_pgt */ convert_pfn_mfn(level3_kernel_pgt); - /* L3_k[511][506] -> level1_fixmap_pgt */ + /* L3_k[511][508-FIXMAP_PMD_NUM ... 507] -> level1_fixmap_pgt */ convert_pfn_mfn(level2_fixmap_pgt); /* We get [511][511] and have Xen's version of level2_kernel_pgt */ @@ -1952,7 +1952,11 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn) set_page_prot(level2_ident_pgt, PAGE_KERNEL_RO); set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO); set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO); - set_page_prot(level1_fixmap_pgt, PAGE_KERNEL_RO); + + for (i = 0; i < FIXMAP_PMD_NUM; i++) { + set_page_prot(level1_fixmap_pgt + i * PTRS_PER_PTE, + PAGE_KERNEL_RO); + } /* Pin down new L4 */ pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE, From b3027b7746ce1e5a9429715ee6492aca2a6e4cf0 Mon Sep 17 00:00:00 2001 From: Lorenzo Pieralisi Date: Wed, 19 Sep 2018 17:06:36 +0100 Subject: [PATCH 1215/1762] MAINTAINERS: Move mobiveil PCI driver entry where it belongs Commit 92f9ccca4c08 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver DT bindings") managed to add a MAINTAINERS entry where it does not really belong (ie in the middle of a totally unrelated series of entries and in the wrong alphabetical order). Fix it. Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Cc: Subrahmanya Lingappa --- MAINTAINERS | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index f05d2e9ffc84..700408b7bc53 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9716,13 +9716,6 @@ Q: http://patchwork.linuxtv.org/project/linux-media/list/ S: Maintained F: drivers/media/dvb-frontends/mn88473* -PCI DRIVER FOR MOBIVEIL PCIE IP -M: Subrahmanya Lingappa -L: linux-pci@vger.kernel.org -S: Supported -F: Documentation/devicetree/bindings/pci/mobiveil-pcie.txt -F: drivers/pci/controller/pcie-mobiveil.c - MODULE SUPPORT M: Jessica Yu T: git git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux.git modules-next @@ -11137,6 +11130,13 @@ F: include/uapi/linux/switchtec_ioctl.h F: include/linux/switchtec.h F: drivers/ntb/hw/mscc/ +PCI DRIVER FOR MOBIVEIL PCIE IP +M: Subrahmanya Lingappa +L: linux-pci@vger.kernel.org +S: Supported +F: Documentation/devicetree/bindings/pci/mobiveil-pcie.txt +F: drivers/pci/controller/pcie-mobiveil.c + PCI DRIVER FOR MVEBU (Marvell Armada 370 and Armada XP SOC support) M: Thomas Petazzoni M: Jason Cooper From 9024143e700f89d74b8cdaf316a3499d74fc56fe Mon Sep 17 00:00:00 2001 From: Jisheng Zhang Date: Thu, 20 Sep 2018 16:32:52 -0500 Subject: [PATCH 1216/1762] PCI: dwc: Fix scheduling while atomic issues When programming the inbound/outbound ATUs, we call usleep_range() after each checking PCIE_ATU_ENABLE bit. Unfortunately, the ATU programming can be executed in atomic context: inbound ATU programming could be called through pci_epc_write_header() =>dw_pcie_ep_write_header() =>dw_pcie_prog_inbound_atu() outbound ATU programming could be called through pci_bus_read_config_dword() =>dw_pcie_rd_conf() =>dw_pcie_prog_outbound_atu() Fix this issue by calling mdelay() instead. Fixes: f8aed6ec624f ("PCI: dwc: designware: Add EP mode support") Fixes: d8bbeb39fbf3 ("PCI: designware: Wait for iATU enable") Signed-off-by: Jisheng Zhang [lorenzo.pieralisi@arm.com: commit log update] Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Acked-by: Gustavo Pimentel --- drivers/pci/controller/dwc/pcie-designware.c | 8 ++++---- drivers/pci/controller/dwc/pcie-designware.h | 3 +-- 2 files changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c index 778c4f76a884..2153956a0b20 100644 --- a/drivers/pci/controller/dwc/pcie-designware.c +++ b/drivers/pci/controller/dwc/pcie-designware.c @@ -135,7 +135,7 @@ static void dw_pcie_prog_outbound_atu_unroll(struct dw_pcie *pci, int index, if (val & PCIE_ATU_ENABLE) return; - usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX); + mdelay(LINK_WAIT_IATU); } dev_err(pci->dev, "Outbound iATU is not being enabled\n"); } @@ -178,7 +178,7 @@ void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index, int type, if (val & PCIE_ATU_ENABLE) return; - usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX); + mdelay(LINK_WAIT_IATU); } dev_err(pci->dev, "Outbound iATU is not being enabled\n"); } @@ -236,7 +236,7 @@ static int dw_pcie_prog_inbound_atu_unroll(struct dw_pcie *pci, int index, if (val & PCIE_ATU_ENABLE) return 0; - usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX); + mdelay(LINK_WAIT_IATU); } dev_err(pci->dev, "Inbound iATU is not being enabled\n"); @@ -282,7 +282,7 @@ int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, int index, int bar, if (val & PCIE_ATU_ENABLE) return 0; - usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX); + mdelay(LINK_WAIT_IATU); } dev_err(pci->dev, "Inbound iATU is not being enabled\n"); diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index 96126fd8403c..9f1a5e399b70 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -26,8 +26,7 @@ /* Parameters for the waiting for iATU enabled routine */ #define LINK_WAIT_MAX_IATU_RETRIES 5 -#define LINK_WAIT_IATU_MIN 9000 -#define LINK_WAIT_IATU_MAX 10000 +#define LINK_WAIT_IATU 9 /* Synopsys-specific PCIe configuration registers */ #define PCIE_PORT_LINK_CONTROL 0x710 From 4eeed3686981ff887bbdd7254139e2eca276534c Mon Sep 17 00:00:00 2001 From: Majd Dibbiny Date: Tue, 18 Sep 2018 10:51:37 +0300 Subject: [PATCH 1217/1762] RDMA/uverbs: Fix validity check for modify QP Uverbs shouldn't enforce QP state in the command unless the user set the QP state bit in the attribute mask. In addition, only copy qp attr fields which have the corresponding bit set in the attribute mask over to the internal attr structure. Fixes: 88de869bbe4f ("RDMA/uverbs: Ensure validity of current QP state value") Fixes: bc38a6abdd5a ("[PATCH] IB uverbs: core implementation") Signed-off-by: Majd Dibbiny Signed-off-by: Jack Morgenstein Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/uverbs_cmd.c | 68 ++++++++++++++++++---------- 1 file changed, 45 insertions(+), 23 deletions(-) diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index a21d5214afc3..e012ca80f9d1 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -2027,33 +2027,55 @@ static int modify_qp(struct ib_uverbs_file *file, if ((cmd->base.attr_mask & IB_QP_CUR_STATE && cmd->base.cur_qp_state > IB_QPS_ERR) || - cmd->base.qp_state > IB_QPS_ERR) { + (cmd->base.attr_mask & IB_QP_STATE && + cmd->base.qp_state > IB_QPS_ERR)) { ret = -EINVAL; goto release_qp; } - attr->qp_state = cmd->base.qp_state; - attr->cur_qp_state = cmd->base.cur_qp_state; - attr->path_mtu = cmd->base.path_mtu; - attr->path_mig_state = cmd->base.path_mig_state; - attr->qkey = cmd->base.qkey; - attr->rq_psn = cmd->base.rq_psn; - attr->sq_psn = cmd->base.sq_psn; - attr->dest_qp_num = cmd->base.dest_qp_num; - attr->qp_access_flags = cmd->base.qp_access_flags; - attr->pkey_index = cmd->base.pkey_index; - attr->alt_pkey_index = cmd->base.alt_pkey_index; - attr->en_sqd_async_notify = cmd->base.en_sqd_async_notify; - attr->max_rd_atomic = cmd->base.max_rd_atomic; - attr->max_dest_rd_atomic = cmd->base.max_dest_rd_atomic; - attr->min_rnr_timer = cmd->base.min_rnr_timer; - attr->port_num = cmd->base.port_num; - attr->timeout = cmd->base.timeout; - attr->retry_cnt = cmd->base.retry_cnt; - attr->rnr_retry = cmd->base.rnr_retry; - attr->alt_port_num = cmd->base.alt_port_num; - attr->alt_timeout = cmd->base.alt_timeout; - attr->rate_limit = cmd->rate_limit; + if (cmd->base.attr_mask & IB_QP_STATE) + attr->qp_state = cmd->base.qp_state; + if (cmd->base.attr_mask & IB_QP_CUR_STATE) + attr->cur_qp_state = cmd->base.cur_qp_state; + if (cmd->base.attr_mask & IB_QP_PATH_MTU) + attr->path_mtu = cmd->base.path_mtu; + if (cmd->base.attr_mask & IB_QP_PATH_MIG_STATE) + attr->path_mig_state = cmd->base.path_mig_state; + if (cmd->base.attr_mask & IB_QP_QKEY) + attr->qkey = cmd->base.qkey; + if (cmd->base.attr_mask & IB_QP_RQ_PSN) + attr->rq_psn = cmd->base.rq_psn; + if (cmd->base.attr_mask & IB_QP_SQ_PSN) + attr->sq_psn = cmd->base.sq_psn; + if (cmd->base.attr_mask & IB_QP_DEST_QPN) + attr->dest_qp_num = cmd->base.dest_qp_num; + if (cmd->base.attr_mask & IB_QP_ACCESS_FLAGS) + attr->qp_access_flags = cmd->base.qp_access_flags; + if (cmd->base.attr_mask & IB_QP_PKEY_INDEX) + attr->pkey_index = cmd->base.pkey_index; + if (cmd->base.attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY) + attr->en_sqd_async_notify = cmd->base.en_sqd_async_notify; + if (cmd->base.attr_mask & IB_QP_MAX_QP_RD_ATOMIC) + attr->max_rd_atomic = cmd->base.max_rd_atomic; + if (cmd->base.attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) + attr->max_dest_rd_atomic = cmd->base.max_dest_rd_atomic; + if (cmd->base.attr_mask & IB_QP_MIN_RNR_TIMER) + attr->min_rnr_timer = cmd->base.min_rnr_timer; + if (cmd->base.attr_mask & IB_QP_PORT) + attr->port_num = cmd->base.port_num; + if (cmd->base.attr_mask & IB_QP_TIMEOUT) + attr->timeout = cmd->base.timeout; + if (cmd->base.attr_mask & IB_QP_RETRY_CNT) + attr->retry_cnt = cmd->base.retry_cnt; + if (cmd->base.attr_mask & IB_QP_RNR_RETRY) + attr->rnr_retry = cmd->base.rnr_retry; + if (cmd->base.attr_mask & IB_QP_ALT_PATH) { + attr->alt_port_num = cmd->base.alt_port_num; + attr->alt_timeout = cmd->base.alt_timeout; + attr->alt_pkey_index = cmd->base.alt_pkey_index; + } + if (cmd->base.attr_mask & IB_QP_RATE_LIMIT) + attr->rate_limit = cmd->rate_limit; if (cmd->base.attr_mask & IB_QP_AV) copy_ah_attr_from_uverbs(qp->device, &attr->ah_attr, From 0dbfaa9f2813787679e296eb5476e40938ab48c8 Mon Sep 17 00:00:00 2001 From: Ira Weiny Date: Thu, 20 Sep 2018 12:58:46 -0700 Subject: [PATCH 1218/1762] IB/hfi1: Fix SL array bounds check The SL specified by a user needs to be a valid SL. Add a range check to the user specified SL value which protects from running off the end of the SL to SC table. CC: stable@vger.kernel.org Fixes: 7724105686e7 ("IB/hfi1: add driver files") Signed-off-by: Ira Weiny Signed-off-by: Dennis Dalessandro Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/hfi1/verbs.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c index 13374c727b14..a7c586a5589d 100644 --- a/drivers/infiniband/hw/hfi1/verbs.c +++ b/drivers/infiniband/hw/hfi1/verbs.c @@ -1582,6 +1582,7 @@ static int hfi1_check_ah(struct ib_device *ibdev, struct rdma_ah_attr *ah_attr) struct hfi1_pportdata *ppd; struct hfi1_devdata *dd; u8 sc5; + u8 sl; if (hfi1_check_mcast(rdma_ah_get_dlid(ah_attr)) && !(rdma_ah_get_ah_flags(ah_attr) & IB_AH_GRH)) @@ -1590,8 +1591,13 @@ static int hfi1_check_ah(struct ib_device *ibdev, struct rdma_ah_attr *ah_attr) /* test the mapping for validity */ ibp = to_iport(ibdev, rdma_ah_get_port_num(ah_attr)); ppd = ppd_from_ibp(ibp); - sc5 = ibp->sl_to_sc[rdma_ah_get_sl(ah_attr)]; dd = dd_from_ppd(ppd); + + sl = rdma_ah_get_sl(ah_attr); + if (sl >= ARRAY_SIZE(ibp->sl_to_sc)) + return -EINVAL; + + sc5 = ibp->sl_to_sc[sl]; if (sc_to_vlt(dd, sc5) > num_vls && sc_to_vlt(dd, sc5) != 0xf) return -EINVAL; return 0; From 94694d18cf27a6faad91487a38ce516c2b16e7d9 Mon Sep 17 00:00:00 2001 From: "Michael J. Ruhl" Date: Thu, 20 Sep 2018 12:58:56 -0700 Subject: [PATCH 1219/1762] IB/hfi1: Invalid user input can result in crash If the number of packets in a user sdma request does not match the actual iovectors being sent, sdma_cleanup can be called on an uninitialized request structure, resulting in a crash similar to this: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: [] __sdma_txclean+0x57/0x1e0 [hfi1] PGD 8000001044f61067 PUD 1052706067 PMD 0 Oops: 0000 [#1] SMP CPU: 30 PID: 69912 Comm: upsm Kdump: loaded Tainted: G OE ------------ 3.10.0-862.el7.x86_64 #1 Hardware name: Intel Corporation S2600KPR/S2600KPR, BIOS SE5C610.86B.01.01.0019.101220160604 10/12/2016 task: ffff8b331c890000 ti: ffff8b2ed1f98000 task.ti: ffff8b2ed1f98000 RIP: 0010:[] [] __sdma_txclean+0x57/0x1e0 [hfi1] RSP: 0018:ffff8b2ed1f9bab0 EFLAGS: 00010286 RAX: 0000000000008b2b RBX: ffff8b2adf6e0000 RCX: 0000000000000000 RDX: 00000000000000a0 RSI: ffff8b2e9eedc540 RDI: ffff8b2adf6e0000 RBP: ffff8b2ed1f9bad8 R08: 0000000000000000 R09: ffffffffc0b04a06 R10: ffff8b331c890190 R11: ffffe6ed00bf1840 R12: ffff8b3315480000 R13: ffff8b33154800f0 R14: 00000000fffffff2 R15: ffff8b2e9eedc540 FS: 00007f035ac47740(0000) GS:ffff8b331e100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 0000000c03fe6000 CR4: 00000000001607e0 Call Trace: [] user_sdma_send_pkts+0xdcd/0x1990 [hfi1] [] ? gup_pud_range+0x140/0x290 [] ? hfi1_mmu_rb_insert+0x155/0x1b0 [hfi1] [] hfi1_user_sdma_process_request+0xc5b/0x11b0 [hfi1] [] hfi1_aio_write+0xba/0x110 [hfi1] [] do_sync_readv_writev+0x7b/0xd0 [] do_readv_writev+0xce/0x260 [] ? tty_ldisc_deref+0x19/0x20 [] ? n_tty_ioctl+0xe0/0xe0 [] vfs_writev+0x35/0x60 [] SyS_writev+0x7f/0x110 [] system_call_fastpath+0x1c/0x21 Code: 06 49 c7 47 18 00 00 00 00 0f 87 89 01 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 66 2e 0f 1f 84 00 00 00 00 00 48 8b 4e 10 48 89 fb <48> 8b 51 08 49 89 d4 83 e2 0c 41 81 e4 00 e0 00 00 48 c1 ea 02 RIP [] __sdma_txclean+0x57/0x1e0 [hfi1] RSP CR2: 0000000000000008 There are two exit points from user_sdma_send_pkts(). One (free_tx) merely frees the slab entry and one (free_txreq) cleans the sdma_txreq prior to freeing the slab entry. The free_txreq variation can only be called after one of the sdma_init*() variations has been called. In the panic case, the slab entry had been allocated but not inited. Fix the issue by exiting through free_tx thus avoiding sdma_clean(). Cc: # 4.9.x+ Fixes: 7724105686e7 ("IB/hfi1: add driver files") Reviewed-by: Mike Marciniszyn Reviewed-by: Lukasz Odzioba Signed-off-by: Michael J. Ruhl Signed-off-by: Dennis Dalessandro Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/hfi1/user_sdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hfi1/user_sdma.c b/drivers/infiniband/hw/hfi1/user_sdma.c index a3a7b33196d6..5c88706121c1 100644 --- a/drivers/infiniband/hw/hfi1/user_sdma.c +++ b/drivers/infiniband/hw/hfi1/user_sdma.c @@ -828,7 +828,7 @@ static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts) if (READ_ONCE(iovec->offset) == iovec->iov.iov_len) { if (++req->iov_idx == req->data_iovs) { ret = -EFAULT; - goto free_txreq; + goto free_tx; } iovec = &req->iovs[req->iov_idx]; WARN_ON(iovec->offset); From d623500b3c4efd8d4e945ac9003c6b87b469a9ab Mon Sep 17 00:00:00 2001 From: "Michael J. Ruhl" Date: Thu, 20 Sep 2018 12:59:05 -0700 Subject: [PATCH 1220/1762] IB/hfi1: Fix context recovery when PBC has an UnsupportedVL If a packet stream uses an UnsupportedVL (virtual lane), the send engine will not send the packet, and it will not indicate that an error has occurred. This will cause the packet stream to block. HFI has 8 virtual lanes available for packet streams. Each lane can be enabled or disabled using the UnsupportedVL mask. If a lane is disabled, adding a packet to the send context must be disallowed. The current mask for determining unsupported VLs defaults to 0 (allow all). This is incorrect. Only the VLs that are defined should be allowed. Determine which VLs are disabled (mtu == 0), and set the appropriate unsupported bit in the mask. The correct mask will allow the send engine to error on the invalid VL, and error recovery will work correctly. Cc: # 4.9.x+ Fixes: 7724105686e7 ("IB/hfi1: add driver files") Reviewed-by: Mike Marciniszyn Reviewed-by: Lukasz Odzioba Signed-off-by: Michael J. Ruhl Signed-off-by: Dennis Dalessandro Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/hfi1/pio.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/pio.c b/drivers/infiniband/hw/hfi1/pio.c index c2c1cba5b23b..cd962c9ea6bc 100644 --- a/drivers/infiniband/hw/hfi1/pio.c +++ b/drivers/infiniband/hw/hfi1/pio.c @@ -86,6 +86,7 @@ void pio_send_control(struct hfi1_devdata *dd, int op) unsigned long flags; int write = 1; /* write sendctrl back */ int flush = 0; /* re-read sendctrl to make sure it is flushed */ + int i; spin_lock_irqsave(&dd->sendctrl_lock, flags); @@ -95,9 +96,13 @@ void pio_send_control(struct hfi1_devdata *dd, int op) reg |= SEND_CTRL_SEND_ENABLE_SMASK; /* Fall through */ case PSC_DATA_VL_ENABLE: + mask = 0; + for (i = 0; i < ARRAY_SIZE(dd->vld); i++) + if (!dd->vld[i].mtu) + mask |= BIT_ULL(i); /* Disallow sending on VLs not enabled */ - mask = (((~0ull) << num_vls) & SEND_CTRL_UNSUPPORTED_VL_MASK) << - SEND_CTRL_UNSUPPORTED_VL_SHIFT; + mask = (mask & SEND_CTRL_UNSUPPORTED_VL_MASK) << + SEND_CTRL_UNSUPPORTED_VL_SHIFT; reg = (reg & ~SEND_CTRL_UNSUPPORTED_VL_SMASK) | mask; break; case PSC_GLOBAL_DISABLE: From b4a4957d3d1c328b733fce783b7264996f866ad2 Mon Sep 17 00:00:00 2001 From: "Michael J. Ruhl" Date: Thu, 20 Sep 2018 12:59:14 -0700 Subject: [PATCH 1221/1762] IB/hfi1: Fix destroy_qp hang after a link down rvt_destroy_qp() cannot complete until all in process packets have been released from the underlying hardware. If a link down event occurs, an application can hang with a kernel stack similar to: cat /proc//stack quiesce_qp+0x178/0x250 [hfi1] rvt_reset_qp+0x23d/0x400 [rdmavt] rvt_destroy_qp+0x69/0x210 [rdmavt] ib_destroy_qp+0xba/0x1c0 [ib_core] nvme_rdma_destroy_queue_ib+0x46/0x80 [nvme_rdma] nvme_rdma_free_queue+0x3c/0xd0 [nvme_rdma] nvme_rdma_destroy_io_queues+0x88/0xd0 [nvme_rdma] nvme_rdma_error_recovery_work+0x52/0xf0 [nvme_rdma] process_one_work+0x17a/0x440 worker_thread+0x126/0x3c0 kthread+0xcf/0xe0 ret_from_fork+0x58/0x90 0xffffffffffffffff quiesce_qp() waits until all outstanding packets have been freed. This wait should be momentary. During a link down event, the cleanup handling does not ensure that all packets caught by the link down are flushed properly. This is caused by the fact that the freeze path and the link down event is handled the same. This is not correct. The freeze path waits until the HFI is unfrozen and then restarts PIO. A link down is not a freeze event. The link down path cannot restart the PIO until link is restored. If the PIO path is restarted before the link comes up, the application (QP) using the PIO path will hang (until link is restored). Fix by separating the linkdown path from the freeze path and use the link down path for link down events. Close a race condition sc_disable() by acquiring both the progress and release locks. Close a race condition in sc_stop() by moving the setting of the flag bits under the alloc lock. Cc: # 4.9.x+ Fixes: 7724105686e7 ("IB/hfi1: add driver files") Reviewed-by: Mike Marciniszyn Signed-off-by: Michael J. Ruhl Signed-off-by: Dennis Dalessandro Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/hfi1/chip.c | 6 ++++- drivers/infiniband/hw/hfi1/pio.c | 42 +++++++++++++++++++++++++------ drivers/infiniband/hw/hfi1/pio.h | 2 ++ 3 files changed, 41 insertions(+), 9 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c index 2c19bf772451..e1668bcc2d13 100644 --- a/drivers/infiniband/hw/hfi1/chip.c +++ b/drivers/infiniband/hw/hfi1/chip.c @@ -6733,6 +6733,7 @@ void start_freeze_handling(struct hfi1_pportdata *ppd, int flags) struct hfi1_devdata *dd = ppd->dd; struct send_context *sc; int i; + int sc_flags; if (flags & FREEZE_SELF) write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_FREEZE_SMASK); @@ -6743,11 +6744,13 @@ void start_freeze_handling(struct hfi1_pportdata *ppd, int flags) /* notify all SDMA engines that they are going into a freeze */ sdma_freeze_notify(dd, !!(flags & FREEZE_LINK_DOWN)); + sc_flags = SCF_FROZEN | SCF_HALTED | (flags & FREEZE_LINK_DOWN ? + SCF_LINK_DOWN : 0); /* do halt pre-handling on all enabled send contexts */ for (i = 0; i < dd->num_send_contexts; i++) { sc = dd->send_contexts[i].sc; if (sc && (sc->flags & SCF_ENABLED)) - sc_stop(sc, SCF_FROZEN | SCF_HALTED); + sc_stop(sc, sc_flags); } /* Send context are frozen. Notify user space */ @@ -10674,6 +10677,7 @@ int set_link_state(struct hfi1_pportdata *ppd, u32 state) add_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK); handle_linkup_change(dd, 1); + pio_kernel_linkup(dd); /* * After link up, a new link width will have been set. diff --git a/drivers/infiniband/hw/hfi1/pio.c b/drivers/infiniband/hw/hfi1/pio.c index cd962c9ea6bc..752057647f09 100644 --- a/drivers/infiniband/hw/hfi1/pio.c +++ b/drivers/infiniband/hw/hfi1/pio.c @@ -926,20 +926,18 @@ void sc_free(struct send_context *sc) void sc_disable(struct send_context *sc) { u64 reg; - unsigned long flags; struct pio_buf *pbuf; if (!sc) return; /* do all steps, even if already disabled */ - spin_lock_irqsave(&sc->alloc_lock, flags); + spin_lock_irq(&sc->alloc_lock); reg = read_kctxt_csr(sc->dd, sc->hw_context, SC(CTRL)); reg &= ~SC(CTRL_CTXT_ENABLE_SMASK); sc->flags &= ~SCF_ENABLED; sc_wait_for_packet_egress(sc, 1); write_kctxt_csr(sc->dd, sc->hw_context, SC(CTRL), reg); - spin_unlock_irqrestore(&sc->alloc_lock, flags); /* * Flush any waiters. Once the context is disabled, @@ -949,7 +947,7 @@ void sc_disable(struct send_context *sc) * proceed with the flush. */ udelay(1); - spin_lock_irqsave(&sc->release_lock, flags); + spin_lock(&sc->release_lock); if (sc->sr) { /* this context has a shadow ring */ while (sc->sr_tail != sc->sr_head) { pbuf = &sc->sr[sc->sr_tail].pbuf; @@ -960,7 +958,8 @@ void sc_disable(struct send_context *sc) sc->sr_tail = 0; } } - spin_unlock_irqrestore(&sc->release_lock, flags); + spin_unlock(&sc->release_lock); + spin_unlock_irq(&sc->alloc_lock); } /* return SendEgressCtxtStatus.PacketOccupancy */ @@ -1183,11 +1182,39 @@ void pio_kernel_unfreeze(struct hfi1_devdata *dd) sc = dd->send_contexts[i].sc; if (!sc || !(sc->flags & SCF_FROZEN) || sc->type == SC_USER) continue; + if (sc->flags & SCF_LINK_DOWN) + continue; sc_enable(sc); /* will clear the sc frozen flag */ } } +/** + * pio_kernel_linkup() - Re-enable send contexts after linkup event + * @dd: valid devive data + * + * When the link goes down, the freeze path is taken. However, a link down + * event is different from a freeze because if the send context is re-enabled + * whowever is sending data will start sending data again, which will hang + * any QP that is sending data. + * + * The freeze path now looks at the type of event that occurs and takes this + * path for link down event. + */ +void pio_kernel_linkup(struct hfi1_devdata *dd) +{ + struct send_context *sc; + int i; + + for (i = 0; i < dd->num_send_contexts; i++) { + sc = dd->send_contexts[i].sc; + if (!sc || !(sc->flags & SCF_LINK_DOWN) || sc->type == SC_USER) + continue; + + sc_enable(sc); /* will clear the sc link down flag */ + } +} + /* * Wait for the SendPioInitCtxt.PioInitInProgress bit to clear. * Returns: @@ -1387,11 +1414,10 @@ void sc_stop(struct send_context *sc, int flag) { unsigned long flags; - /* mark the context */ - sc->flags |= flag; - /* stop buffer allocations */ spin_lock_irqsave(&sc->alloc_lock, flags); + /* mark the context */ + sc->flags |= flag; sc->flags &= ~SCF_ENABLED; spin_unlock_irqrestore(&sc->alloc_lock, flags); wake_up(&sc->halt_wait); diff --git a/drivers/infiniband/hw/hfi1/pio.h b/drivers/infiniband/hw/hfi1/pio.h index 058b08f459ab..aaf372c3e5d6 100644 --- a/drivers/infiniband/hw/hfi1/pio.h +++ b/drivers/infiniband/hw/hfi1/pio.h @@ -139,6 +139,7 @@ struct send_context { #define SCF_IN_FREE 0x02 #define SCF_HALTED 0x04 #define SCF_FROZEN 0x08 +#define SCF_LINK_DOWN 0x10 struct send_context_info { struct send_context *sc; /* allocated working context */ @@ -306,6 +307,7 @@ void set_pio_integrity(struct send_context *sc); void pio_reset_all(struct hfi1_devdata *dd); void pio_freeze(struct hfi1_devdata *dd); void pio_kernel_unfreeze(struct hfi1_devdata *dd); +void pio_kernel_linkup(struct hfi1_devdata *dd); /* global PIO send control operations */ #define PSC_GLOBAL_ENABLE 0 From d87161bea405e3260377026ca8a704a3f68bd67a Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Thu, 13 Sep 2018 14:28:48 +0300 Subject: [PATCH 1222/1762] scsi: ufs: Disable blk-mq for now blk-mq does not support runtime pm, so disable blk-mq support for now. Fixes: d5038a13eca7 ("scsi: core: switch to scsi-mq by default") Signed-off-by: Adrian Hunter Acked-by: Christoph Hellwig Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 9d5d2ca7fc4f..c55f38ec391c 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -7940,6 +7940,13 @@ int ufshcd_alloc_host(struct device *dev, struct ufs_hba **hba_handle) err = -ENOMEM; goto out_error; } + + /* + * Do not use blk-mq at this time because blk-mq does not support + * runtime pm. + */ + host->use_blk_mq = false; + hba = shost_priv(host); hba->host = host; hba->dev = dev; From 9e210178267b80c4eeb832fade7e146a18c84915 Mon Sep 17 00:00:00 2001 From: James Smart Date: Thu, 13 Sep 2018 15:41:10 -0700 Subject: [PATCH 1223/1762] scsi: lpfc: Synchronize access to remoteport via rport The driver currently uses the ndlp to get the local rport which is then used to get the nvme transport remoteport pointer. There can be cases where a stale remoteport pointer is obtained as synchronization isn't done through the different dereferences. Correct by using locks to synchronize the dereferences. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_attr.c | 15 ++++++++++----- drivers/scsi/lpfc/lpfc_debugfs.c | 10 +++++----- drivers/scsi/lpfc/lpfc_nvme.c | 11 ++++++++--- 3 files changed, 23 insertions(+), 13 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 057a60abe664..1a6ed9b0a249 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -360,12 +360,12 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, goto buffer_done; list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { + nrport = NULL; + spin_lock(&vport->phba->hbalock); rport = lpfc_ndlp_get_nrport(ndlp); - if (!rport) - continue; - - /* local short-hand pointer. */ - nrport = rport->remoteport; + if (rport) + nrport = rport->remoteport; + spin_unlock(&vport->phba->hbalock); if (!nrport) continue; @@ -3386,6 +3386,7 @@ lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) struct lpfc_nodelist *ndlp; #if (IS_ENABLED(CONFIG_NVME_FC)) struct lpfc_nvme_rport *rport; + struct nvme_fc_remote_port *remoteport = NULL; #endif shost = lpfc_shost_from_vport(vport); @@ -3396,8 +3397,12 @@ lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) if (ndlp->rport) ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; #if (IS_ENABLED(CONFIG_NVME_FC)) + spin_lock(&vport->phba->hbalock); rport = lpfc_ndlp_get_nrport(ndlp); if (rport) + remoteport = rport->remoteport; + spin_unlock(&vport->phba->hbalock); + if (remoteport) nvme_fc_set_remoteport_devloss(rport->remoteport, vport->cfg_devloss_tmo); #endif diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index 9df0c051349f..aec5b10a8c85 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -551,7 +551,7 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) unsigned char *statep; struct nvme_fc_local_port *localport; struct lpfc_nvmet_tgtport *tgtp; - struct nvme_fc_remote_port *nrport; + struct nvme_fc_remote_port *nrport = NULL; struct lpfc_nvme_rport *rport; cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); @@ -696,11 +696,11 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) len += snprintf(buf + len, size - len, "\tRport List:\n"); list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { /* local short-hand pointer. */ + spin_lock(&phba->hbalock); rport = lpfc_ndlp_get_nrport(ndlp); - if (!rport) - continue; - - nrport = rport->remoteport; + if (rport) + nrport = rport->remoteport; + spin_unlock(&phba->hbalock); if (!nrport) continue; diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c index 028462e5994d..918ae18ef8a8 100644 --- a/drivers/scsi/lpfc/lpfc_nvme.c +++ b/drivers/scsi/lpfc/lpfc_nvme.c @@ -2725,7 +2725,9 @@ lpfc_nvme_register_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) rpinfo.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); rpinfo.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); + spin_lock_irq(&vport->phba->hbalock); oldrport = lpfc_ndlp_get_nrport(ndlp); + spin_unlock_irq(&vport->phba->hbalock); if (!oldrport) lpfc_nlp_get(ndlp); @@ -2840,7 +2842,7 @@ lpfc_nvme_unregister_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) struct nvme_fc_local_port *localport; struct lpfc_nvme_lport *lport; struct lpfc_nvme_rport *rport; - struct nvme_fc_remote_port *remoteport; + struct nvme_fc_remote_port *remoteport = NULL; localport = vport->localport; @@ -2854,11 +2856,14 @@ lpfc_nvme_unregister_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) if (!lport) goto input_err; + spin_lock_irq(&vport->phba->hbalock); rport = lpfc_ndlp_get_nrport(ndlp); - if (!rport) + if (rport) + remoteport = rport->remoteport; + spin_unlock_irq(&vport->phba->hbalock); + if (!remoteport) goto input_err; - remoteport = rport->remoteport; lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, "6033 Unreg nvme remoteport %p, portname x%llx, " "port_id x%06x, portstate x%x port type x%x\n", From 10bc6a6042c900934a097988b5d50e3cf3f91781 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Thu, 20 Sep 2018 22:47:09 +0200 Subject: [PATCH 1224/1762] r8169: fix autoneg issue on resume with RTL8168E It was reported that chip version 33 (RTL8168E) ends up with 10MBit/Half on a 1GBit link after resuming from S3 (with different link partners). For whatever reason the PHY on this chip doesn't properly start a renegotiation when soft-reset. Explicitly requesting a renegotiation fixes this. Fixes: a2965f12fde6 ("r8169: remove rtl8169_set_speed_xmii") Signed-off-by: Heiner Kallweit Reported-by: Neil MacLeod Tested-by: Neil MacLeod Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index bb529ff2ca81..ab30aaeac6d3 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -4071,6 +4071,15 @@ static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp) phy_speed_up(dev->phydev); genphy_soft_reset(dev->phydev); + + /* It was reported that chip version 33 ends up with 10MBit/Half on a + * 1GBit link after resuming from S3. For whatever reason the PHY on + * this chip doesn't properly start a renegotiation when soft-reset. + * Explicitly requesting a renegotiation fixes this. + */ + if (tp->mac_version == RTL_GIGA_MAC_VER_33 && + dev->phydev->autoneg == AUTONEG_ENABLE) + phy_restart_aneg(dev->phydev); } static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr) From 13cc6f48c7434ce46ba6dbc90003a136a263d75a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Horia=20Geant=C4=83?= Date: Fri, 14 Sep 2018 18:34:28 +0300 Subject: [PATCH 1225/1762] crypto: caam/jr - fix ablkcipher_edesc pointer arithmetic MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In some cases the zero-length hw_desc array at the end of ablkcipher_edesc struct requires for 4B of tail padding. Due to tail padding and the way pointers to S/G table and IV are computed: edesc->sec4_sg = (void *)edesc + sizeof(struct ablkcipher_edesc) + desc_bytes; iv = (u8 *)edesc->hw_desc + desc_bytes + sec4_sg_bytes; first 4 bytes of IV are overwritten by S/G table. Update computation of pointer to S/G table to rely on offset of hw_desc member and not on sizeof() operator. Cc: # 4.13+ Fixes: 115957bb3e59 ("crypto: caam - fix IV DMA mapping and updating") Signed-off-by: Horia Geantă Signed-off-by: Herbert Xu --- drivers/crypto/caam/caamalg.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c index d67667970f7e..ec40f991e6c6 100644 --- a/drivers/crypto/caam/caamalg.c +++ b/drivers/crypto/caam/caamalg.c @@ -1553,8 +1553,8 @@ static struct ablkcipher_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request edesc->src_nents = src_nents; edesc->dst_nents = dst_nents; edesc->sec4_sg_bytes = sec4_sg_bytes; - edesc->sec4_sg = (void *)edesc + sizeof(struct ablkcipher_edesc) + - desc_bytes; + edesc->sec4_sg = (struct sec4_sg_entry *)((u8 *)edesc->hw_desc + + desc_bytes); edesc->iv_dir = DMA_TO_DEVICE; /* Make sure IV is located in a DMAable area */ @@ -1757,8 +1757,8 @@ static struct ablkcipher_edesc *ablkcipher_giv_edesc_alloc( edesc->src_nents = src_nents; edesc->dst_nents = dst_nents; edesc->sec4_sg_bytes = sec4_sg_bytes; - edesc->sec4_sg = (void *)edesc + sizeof(struct ablkcipher_edesc) + - desc_bytes; + edesc->sec4_sg = (struct sec4_sg_entry *)((u8 *)edesc->hw_desc + + desc_bytes); edesc->iv_dir = DMA_FROM_DEVICE; /* Make sure IV is located in a DMAable area */ From 5b3686c7aaade973b8806dba4ecc99bec8c988f3 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Thu, 9 Aug 2018 14:44:29 +0800 Subject: [PATCH 1226/1762] ieee802154: Use kmemdup instead of duplicating it in ca8210_test_int_driver_write Replace calls to kmalloc followed by a memcpy with a direct call to kmemdup. Signed-off-by: YueHaibing Signed-off-by: Stefan Schmidt --- drivers/net/ieee802154/ca8210.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c index 58299fb666ed..e21279dde85c 100644 --- a/drivers/net/ieee802154/ca8210.c +++ b/drivers/net/ieee802154/ca8210.c @@ -634,10 +634,9 @@ static int ca8210_test_int_driver_write( for (i = 0; i < len; i++) dev_dbg(&priv->spi->dev, "%#03x\n", buf[i]); - fifo_buffer = kmalloc(len, GFP_KERNEL); + fifo_buffer = kmemdup(buf, len, GFP_KERNEL); if (!fifo_buffer) return -ENOMEM; - memcpy(fifo_buffer, buf, len); kfifo_in(&test->up_fifo, &fifo_buffer, 4); wake_up_interruptible(&priv->test.readq); From 69be1984ded00a11b1ed0888c6d8e4f35370372f Mon Sep 17 00:00:00 2001 From: Alexandru Gheorghe Date: Mon, 16 Jul 2018 11:07:07 +0100 Subject: [PATCH 1227/1762] drm: mali-dp: Call drm_crtc_vblank_reset on device init Currently, if userspace calls drm_wait_vblank before the crtc is activated the crtc vblank_enable hook is called, which in case of malidp driver triggers some warninngs. This happens because on device init we don't inform the drm core about the vblank state by calling drm_crtc_vblank_on/off/reset which together with drm_vblank_get have some magic that prevents calling drm_vblank_enable when crtc is off. Signed-off-by: Alexandru Gheorghe Acked-by: Liviu Dudau Signed-off-by: Liviu Dudau --- drivers/gpu/drm/arm/malidp_drv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c index 08b5bb219816..94d6dabec2dc 100644 --- a/drivers/gpu/drm/arm/malidp_drv.c +++ b/drivers/gpu/drm/arm/malidp_drv.c @@ -754,6 +754,7 @@ static int malidp_bind(struct device *dev) drm->irq_enabled = true; ret = drm_vblank_init(drm, drm->mode_config.num_crtc); + drm_crtc_vblank_reset(&malidp->crtc); if (ret < 0) { DRM_ERROR("failed to initialise vblank\n"); goto vblank_fail; From 89578d04b52c872aef6b1257b5f6caf6bcc35abe Mon Sep 17 00:00:00 2001 From: Alexandru Gheorghe Date: Wed, 22 Aug 2018 16:18:19 +0100 Subject: [PATCH 1228/1762] drm/malidp: Fix writeback in NV12 When we want to writeback to memory in NV12 format we need to program the RGB2YUV coefficients. Currently, we don't program the coefficients and NV12 doesn't work at all. This patchset fixes that by programming a sane default(bt709, limited range) as rgb2yuv coefficients. In the long run, probably we need to think of a way for userspace to be able to program that, but for now I think this is better than not working at all or not advertising NV12 as a supported format for memwrite. Changes since v1: - Write the rgb2yuv coefficients only once, since we don't change them at all, just write them the first time NV12 is programmed, suggested by Brian Starkey, here [1] [1] https://lists.freedesktop.org/archives/dri-devel/2018-August/186819.html Signed-off-by: Alexandru Gheorghe Acked-by: Liviu Dudau Signed-off-by: Liviu Dudau --- drivers/gpu/drm/arm/malidp_hw.c | 25 +++++++++++++++++++++++-- drivers/gpu/drm/arm/malidp_hw.h | 3 ++- drivers/gpu/drm/arm/malidp_mw.c | 25 +++++++++++++++++++++---- drivers/gpu/drm/arm/malidp_regs.h | 2 ++ 4 files changed, 48 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/arm/malidp_hw.c b/drivers/gpu/drm/arm/malidp_hw.c index c94a4422e0e9..2781e462c1ed 100644 --- a/drivers/gpu/drm/arm/malidp_hw.c +++ b/drivers/gpu/drm/arm/malidp_hw.c @@ -384,7 +384,8 @@ static long malidp500_se_calc_mclk(struct malidp_hw_device *hwdev, static int malidp500_enable_memwrite(struct malidp_hw_device *hwdev, dma_addr_t *addrs, s32 *pitches, - int num_planes, u16 w, u16 h, u32 fmt_id) + int num_planes, u16 w, u16 h, u32 fmt_id, + const s16 *rgb2yuv_coeffs) { u32 base = MALIDP500_SE_MEMWRITE_BASE; u32 de_base = malidp_get_block_base(hwdev, MALIDP_DE_BLOCK); @@ -416,6 +417,16 @@ static int malidp500_enable_memwrite(struct malidp_hw_device *hwdev, malidp_hw_write(hwdev, MALIDP_DE_H_ACTIVE(w) | MALIDP_DE_V_ACTIVE(h), MALIDP500_SE_MEMWRITE_OUT_SIZE); + + if (rgb2yuv_coeffs) { + int i; + + for (i = 0; i < MALIDP_COLORADJ_NUM_COEFFS; i++) { + malidp_hw_write(hwdev, rgb2yuv_coeffs[i], + MALIDP500_SE_RGB_YUV_COEFFS + i * 4); + } + } + malidp_hw_setbits(hwdev, MALIDP_SE_MEMWRITE_EN, MALIDP500_SE_CONTROL); return 0; @@ -658,7 +669,8 @@ static long malidp550_se_calc_mclk(struct malidp_hw_device *hwdev, static int malidp550_enable_memwrite(struct malidp_hw_device *hwdev, dma_addr_t *addrs, s32 *pitches, - int num_planes, u16 w, u16 h, u32 fmt_id) + int num_planes, u16 w, u16 h, u32 fmt_id, + const s16 *rgb2yuv_coeffs) { u32 base = MALIDP550_SE_MEMWRITE_BASE; u32 de_base = malidp_get_block_base(hwdev, MALIDP_DE_BLOCK); @@ -689,6 +701,15 @@ static int malidp550_enable_memwrite(struct malidp_hw_device *hwdev, malidp_hw_setbits(hwdev, MALIDP550_SE_MEMWRITE_ONESHOT | MALIDP_SE_MEMWRITE_EN, MALIDP550_SE_CONTROL); + if (rgb2yuv_coeffs) { + int i; + + for (i = 0; i < MALIDP_COLORADJ_NUM_COEFFS; i++) { + malidp_hw_write(hwdev, rgb2yuv_coeffs[i], + MALIDP550_SE_RGB_YUV_COEFFS + i * 4); + } + } + return 0; } diff --git a/drivers/gpu/drm/arm/malidp_hw.h b/drivers/gpu/drm/arm/malidp_hw.h index ad2e96915d44..9fc94c08190f 100644 --- a/drivers/gpu/drm/arm/malidp_hw.h +++ b/drivers/gpu/drm/arm/malidp_hw.h @@ -191,7 +191,8 @@ struct malidp_hw { * @param fmt_id - internal format ID of output buffer */ int (*enable_memwrite)(struct malidp_hw_device *hwdev, dma_addr_t *addrs, - s32 *pitches, int num_planes, u16 w, u16 h, u32 fmt_id); + s32 *pitches, int num_planes, u16 w, u16 h, u32 fmt_id, + const s16 *rgb2yuv_coeffs); /* * Disable the writing to memory of the next frame's content. diff --git a/drivers/gpu/drm/arm/malidp_mw.c b/drivers/gpu/drm/arm/malidp_mw.c index ba6ae66387c9..91472e5e0c8b 100644 --- a/drivers/gpu/drm/arm/malidp_mw.c +++ b/drivers/gpu/drm/arm/malidp_mw.c @@ -26,6 +26,8 @@ struct malidp_mw_connector_state { s32 pitches[2]; u8 format; u8 n_planes; + bool rgb2yuv_initialized; + const s16 *rgb2yuv_coeffs; }; static int malidp_mw_connector_get_modes(struct drm_connector *connector) @@ -84,7 +86,7 @@ static void malidp_mw_connector_destroy(struct drm_connector *connector) static struct drm_connector_state * malidp_mw_connector_duplicate_state(struct drm_connector *connector) { - struct malidp_mw_connector_state *mw_state; + struct malidp_mw_connector_state *mw_state, *mw_current_state; if (WARN_ON(!connector->state)) return NULL; @@ -93,7 +95,10 @@ malidp_mw_connector_duplicate_state(struct drm_connector *connector) if (!mw_state) return NULL; - /* No need to preserve any of our driver-local data */ + mw_current_state = to_mw_state(connector->state); + mw_state->rgb2yuv_coeffs = mw_current_state->rgb2yuv_coeffs; + mw_state->rgb2yuv_initialized = mw_current_state->rgb2yuv_initialized; + __drm_atomic_helper_connector_duplicate_state(connector, &mw_state->base); return &mw_state->base; @@ -108,6 +113,13 @@ static const struct drm_connector_funcs malidp_mw_connector_funcs = { .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, }; +static const s16 rgb2yuv_coeffs_bt709_limited[MALIDP_COLORADJ_NUM_COEFFS] = { + 47, 157, 16, + -26, -87, 112, + 112, -102, -10, + 16, 128, 128 +}; + static int malidp_mw_encoder_atomic_check(struct drm_encoder *encoder, struct drm_crtc_state *crtc_state, @@ -157,6 +169,9 @@ malidp_mw_encoder_atomic_check(struct drm_encoder *encoder, } mw_state->n_planes = n_planes; + if (fb->format->is_yuv) + mw_state->rgb2yuv_coeffs = rgb2yuv_coeffs_bt709_limited; + return 0; } @@ -239,10 +254,12 @@ void malidp_mw_atomic_commit(struct drm_device *drm, drm_writeback_queue_job(mw_conn, conn_state->writeback_job); conn_state->writeback_job = NULL; - hwdev->hw->enable_memwrite(hwdev, mw_state->addrs, mw_state->pitches, mw_state->n_planes, - fb->width, fb->height, mw_state->format); + fb->width, fb->height, mw_state->format, + !mw_state->rgb2yuv_initialized ? + mw_state->rgb2yuv_coeffs : NULL); + mw_state->rgb2yuv_initialized = !!mw_state->rgb2yuv_coeffs; } else { DRM_DEV_DEBUG_DRIVER(drm->dev, "Disable memwrite\n"); hwdev->hw->disable_memwrite(hwdev); diff --git a/drivers/gpu/drm/arm/malidp_regs.h b/drivers/gpu/drm/arm/malidp_regs.h index 3579d36b2a71..6ffe849774f2 100644 --- a/drivers/gpu/drm/arm/malidp_regs.h +++ b/drivers/gpu/drm/arm/malidp_regs.h @@ -205,6 +205,7 @@ #define MALIDP500_SE_BASE 0x00c00 #define MALIDP500_SE_CONTROL 0x00c0c #define MALIDP500_SE_MEMWRITE_OUT_SIZE 0x00c2c +#define MALIDP500_SE_RGB_YUV_COEFFS 0x00C74 #define MALIDP500_SE_MEMWRITE_BASE 0x00e00 #define MALIDP500_DC_IRQ_BASE 0x00f00 #define MALIDP500_CONFIG_VALID 0x00f00 @@ -238,6 +239,7 @@ #define MALIDP550_SE_CONTROL 0x08010 #define MALIDP550_SE_MEMWRITE_ONESHOT (1 << 7) #define MALIDP550_SE_MEMWRITE_OUT_SIZE 0x08030 +#define MALIDP550_SE_RGB_YUV_COEFFS 0x08078 #define MALIDP550_SE_MEMWRITE_BASE 0x08100 #define MALIDP550_DC_BASE 0x0c000 #define MALIDP550_DC_CONTROL 0x0c010 From 98e616fe7c94f9c787092b6364405d99bdf42153 Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Sat, 8 Sep 2018 21:44:08 +0800 Subject: [PATCH 1229/1762] ieee802154: remove unecessary condition check before debugfs_remove_recursive debugfs_remove_recursive has taken IS_ERR_OR_NULL into account. So just remove the condition check before debugfs_remove_recursive. Signed-off-by: zhong jiang Signed-off-by: Stefan Schmidt --- drivers/net/ieee802154/adf7242.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ieee802154/adf7242.c b/drivers/net/ieee802154/adf7242.c index 23a52b9293f3..cd1d8faccca5 100644 --- a/drivers/net/ieee802154/adf7242.c +++ b/drivers/net/ieee802154/adf7242.c @@ -1308,8 +1308,7 @@ static int adf7242_remove(struct spi_device *spi) { struct adf7242_local *lp = spi_get_drvdata(spi); - if (!IS_ERR_OR_NULL(lp->debugfs_root)) - debugfs_remove_recursive(lp->debugfs_root); + debugfs_remove_recursive(lp->debugfs_root); cancel_delayed_work_sync(&lp->work); destroy_workqueue(lp->wqueue); From 652ef42c134da1bbb03bd4c9b4291dfaf8d7febb Mon Sep 17 00:00:00 2001 From: Antoine Tenart Date: Thu, 20 Sep 2018 12:08:54 +0200 Subject: [PATCH 1230/1762] net: mscc: fix the frame extraction into the skb When extracting frames from the Ocelot switch, the frame check sequence (FCS) is present at the end of the data extracted. The FCS was put into the sk buffer which introduced some issues (as length related ones), as the FCS shouldn't be part of an Rx sk buffer. This patch fixes the Ocelot switch extraction behaviour by discarding the FCS. Fixes: a556c76adc05 ("net: mscc: Add initial Ocelot switch support") Signed-off-by: Antoine Tenart Signed-off-by: David S. Miller --- drivers/net/ethernet/mscc/ocelot_board.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mscc/ocelot_board.c b/drivers/net/ethernet/mscc/ocelot_board.c index 26bb3b18f3be..3cdf63e35b53 100644 --- a/drivers/net/ethernet/mscc/ocelot_board.c +++ b/drivers/net/ethernet/mscc/ocelot_board.c @@ -91,7 +91,7 @@ static irqreturn_t ocelot_xtr_irq_handler(int irq, void *arg) struct sk_buff *skb; struct net_device *dev; u32 *buf; - int sz, len; + int sz, len, buf_len; u32 ifh[4]; u32 val; struct frame_info info; @@ -116,14 +116,20 @@ static irqreturn_t ocelot_xtr_irq_handler(int irq, void *arg) err = -ENOMEM; break; } - buf = (u32 *)skb_put(skb, info.len); + buf_len = info.len - ETH_FCS_LEN; + buf = (u32 *)skb_put(skb, buf_len); len = 0; do { sz = ocelot_rx_frame_word(ocelot, grp, false, &val); *buf++ = val; len += sz; - } while ((sz == 4) && (len < info.len)); + } while (len < buf_len); + + /* Read the FCS and discard it */ + sz = ocelot_rx_frame_word(ocelot, grp, false, &val); + /* Update the statistics if part of the FCS was read before */ + len -= ETH_FCS_LEN - sz; if (sz < 0) { err = sz; From 0310820c2738e92003d9dd8cabee77ff958a16dc Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 21 Sep 2018 07:46:28 +0000 Subject: [PATCH 1231/1762] ASoC: tidyup for_each_card_prelinks() dai_link commit 7fe072b4df5d0 ("ASoC: add for_each_card_prelinks() macro") added new for_each_card_prelinks() macro, but it had typo. This patch fixup it Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/mediatek/mt2701/mt2701-cs42448.c | 8 ++++---- sound/soc/mediatek/mt2701/mt2701-wm8960.c | 8 ++++---- sound/soc/mediatek/mt6797/mt6797-mt6351.c | 6 +++--- 3 files changed, 11 insertions(+), 11 deletions(-) diff --git a/sound/soc/mediatek/mt2701/mt2701-cs42448.c b/sound/soc/mediatek/mt2701/mt2701-cs42448.c index 875f84691535..97f9f38ce6b3 100644 --- a/sound/soc/mediatek/mt2701/mt2701-cs42448.c +++ b/sound/soc/mediatek/mt2701/mt2701-cs42448.c @@ -311,9 +311,9 @@ static int mt2701_cs42448_machine_probe(struct platform_device *pdev) return -EINVAL; } for_each_card_prelinks(card, i, dai_link) { - if (dai_links->platform_name) + if (dai_link->platform_name) continue; - dai_links->platform_of_node = platform_node; + dai_link->platform_of_node = platform_node; } card->dev = dev; @@ -326,9 +326,9 @@ static int mt2701_cs42448_machine_probe(struct platform_device *pdev) return -EINVAL; } for_each_card_prelinks(card, i, dai_link) { - if (dai_links->codec_name) + if (dai_link->codec_name) continue; - dai_links->codec_of_node = codec_node; + dai_link->codec_of_node = codec_node; } codec_node_bt_mrg = of_parse_phandle(pdev->dev.of_node, diff --git a/sound/soc/mediatek/mt2701/mt2701-wm8960.c b/sound/soc/mediatek/mt2701/mt2701-wm8960.c index c67f62935e53..6bc1d3d58e64 100644 --- a/sound/soc/mediatek/mt2701/mt2701-wm8960.c +++ b/sound/soc/mediatek/mt2701/mt2701-wm8960.c @@ -107,9 +107,9 @@ static int mt2701_wm8960_machine_probe(struct platform_device *pdev) return -EINVAL; } for_each_card_prelinks(card, i, dai_link) { - if (dai_links->platform_name) + if (dai_link->platform_name) continue; - dai_links->platform_of_node = platform_node; + dai_link->platform_of_node = platform_node; } card->dev = &pdev->dev; @@ -122,9 +122,9 @@ static int mt2701_wm8960_machine_probe(struct platform_device *pdev) return -EINVAL; } for_each_card_prelinks(card, i, dai_link) { - if (dai_links->codec_name) + if (dai_link->codec_name) continue; - dai_links->codec_of_node = codec_node; + dai_link->codec_of_node = codec_node; } ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); diff --git a/sound/soc/mediatek/mt6797/mt6797-mt6351.c b/sound/soc/mediatek/mt6797/mt6797-mt6351.c index ff2e0ca4384e..cc41eb531653 100644 --- a/sound/soc/mediatek/mt6797/mt6797-mt6351.c +++ b/sound/soc/mediatek/mt6797/mt6797-mt6351.c @@ -172,7 +172,7 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev) for_each_card_prelinks(card, i, dai_link) { if (dai_link->platform_name) continue; - dai_links->platform_of_node = platform_node; + dai_link->platform_of_node = platform_node; } codec_node = of_parse_phandle(pdev->dev.of_node, @@ -183,9 +183,9 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev) return -EINVAL; } for_each_card_prelinks(card, i, dai_link) { - if (dai_links->codec_name) + if (dai_link->codec_name) continue; - dai_links->codec_of_node = codec_node; + dai_link->codec_of_node = codec_node; } ret = devm_snd_soc_register_card(&pdev->dev, card); From c78d42c7fbd6f2a27a665bcd1ab60c9df617f7c9 Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Fri, 21 Sep 2018 18:24:58 +0800 Subject: [PATCH 1232/1762] ASoC: qcom: qdsp6: remove duplicated include from q6adm.c We include wait.h twice in q6adm.c. it is unnecessary. hence remove it. Further, order the include files as alphabet. Signed-off-by: zhong jiang Signed-off-by: Mark Brown --- sound/soc/qcom/qdsp6/q6adm.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/sound/soc/qcom/qdsp6/q6adm.c b/sound/soc/qcom/qdsp6/q6adm.c index 932c3ebfd252..da242515e146 100644 --- a/sound/soc/qcom/qdsp6/q6adm.c +++ b/sound/soc/qcom/qdsp6/q6adm.c @@ -2,25 +2,24 @@ // Copyright (c) 2011-2017, The Linux Foundation. All rights reserved. // Copyright (c) 2018, Linaro Limited -#include -#include -#include #include -#include -#include #include +#include +#include +#include #include #include -#include -#include -#include #include +#include +#include +#include +#include #include #include "q6adm.h" #include "q6afe.h" #include "q6core.h" -#include "q6dsp-errno.h" #include "q6dsp-common.h" +#include "q6dsp-errno.h" #define ADM_CMD_DEVICE_OPEN_V5 0x00010326 #define ADM_CMDRSP_DEVICE_OPEN_V5 0x00010329 From 1816494330a83f2a064499d8ed2797045641f92c Mon Sep 17 00:00:00 2001 From: Vincent Pelletier Date: Sun, 9 Sep 2018 04:09:26 +0000 Subject: [PATCH 1233/1762] scsi: target: iscsi: Use hex2bin instead of a re-implementation This change has the following effects, in order of descreasing importance: 1) Prevent a stack buffer overflow 2) Do not append an unnecessary NULL to an anyway binary buffer, which is writing one byte past client_digest when caller is: chap_string_to_hex(client_digest, chap_r, strlen(chap_r)); The latter was found by KASAN (see below) when input value hes expected size (32 hex chars), and further analysis revealed a stack buffer overflow can happen when network-received value is longer, allowing an unauthenticated remote attacker to smash up to 17 bytes after destination buffer (16 bytes attacker-controlled and one null). As switching to hex2bin requires specifying destination buffer length, and does not internally append any null, it solves both issues. This addresses CVE-2018-14633. Beyond this: - Validate received value length and check hex2bin accepted the input, to log this rejection reason instead of just failing authentication. - Only log received CHAP_R and CHAP_C values once they passed sanity checks. ================================================================== BUG: KASAN: stack-out-of-bounds in chap_string_to_hex+0x32/0x60 [iscsi_target_mod] Write of size 1 at addr ffff8801090ef7c8 by task kworker/0:0/1021 CPU: 0 PID: 1021 Comm: kworker/0:0 Tainted: G O 4.17.8kasan.sess.connops+ #2 Hardware name: To be filled by O.E.M. To be filled by O.E.M./Aptio CRB, BIOS 5.6.5 05/19/2014 Workqueue: events iscsi_target_do_login_rx [iscsi_target_mod] Call Trace: dump_stack+0x71/0xac print_address_description+0x65/0x22e ? chap_string_to_hex+0x32/0x60 [iscsi_target_mod] kasan_report.cold.6+0x241/0x2fd chap_string_to_hex+0x32/0x60 [iscsi_target_mod] chap_server_compute_md5.isra.2+0x2cb/0x860 [iscsi_target_mod] ? chap_binaryhex_to_asciihex.constprop.5+0x50/0x50 [iscsi_target_mod] ? ftrace_caller_op_ptr+0xe/0xe ? __orc_find+0x6f/0xc0 ? unwind_next_frame+0x231/0x850 ? kthread+0x1a0/0x1c0 ? ret_from_fork+0x35/0x40 ? ret_from_fork+0x35/0x40 ? iscsi_target_do_login_rx+0x3bc/0x4c0 [iscsi_target_mod] ? deref_stack_reg+0xd0/0xd0 ? iscsi_target_do_login_rx+0x3bc/0x4c0 [iscsi_target_mod] ? is_module_text_address+0xa/0x11 ? kernel_text_address+0x4c/0x110 ? __save_stack_trace+0x82/0x100 ? ret_from_fork+0x35/0x40 ? save_stack+0x8c/0xb0 ? 0xffffffffc1660000 ? iscsi_target_do_login+0x155/0x8d0 [iscsi_target_mod] ? iscsi_target_do_login_rx+0x3bc/0x4c0 [iscsi_target_mod] ? process_one_work+0x35c/0x640 ? worker_thread+0x66/0x5d0 ? kthread+0x1a0/0x1c0 ? ret_from_fork+0x35/0x40 ? iscsi_update_param_value+0x80/0x80 [iscsi_target_mod] ? iscsit_release_cmd+0x170/0x170 [iscsi_target_mod] chap_main_loop+0x172/0x570 [iscsi_target_mod] ? chap_server_compute_md5.isra.2+0x860/0x860 [iscsi_target_mod] ? rx_data+0xd6/0x120 [iscsi_target_mod] ? iscsit_print_session_params+0xd0/0xd0 [iscsi_target_mod] ? cyc2ns_read_begin.part.2+0x90/0x90 ? _raw_spin_lock_irqsave+0x25/0x50 ? memcmp+0x45/0x70 iscsi_target_do_login+0x875/0x8d0 [iscsi_target_mod] ? iscsi_target_check_first_request.isra.5+0x1a0/0x1a0 [iscsi_target_mod] ? del_timer+0xe0/0xe0 ? memset+0x1f/0x40 ? flush_sigqueue+0x29/0xd0 iscsi_target_do_login_rx+0x3bc/0x4c0 [iscsi_target_mod] ? iscsi_target_nego_release+0x80/0x80 [iscsi_target_mod] ? iscsi_target_restore_sock_callbacks+0x130/0x130 [iscsi_target_mod] process_one_work+0x35c/0x640 worker_thread+0x66/0x5d0 ? flush_rcu_work+0x40/0x40 kthread+0x1a0/0x1c0 ? kthread_bind+0x30/0x30 ret_from_fork+0x35/0x40 The buggy address belongs to the page: page:ffffea0004243bc0 count:0 mapcount:0 mapping:0000000000000000 index:0x0 flags: 0x17fffc000000000() raw: 017fffc000000000 0000000000000000 0000000000000000 00000000ffffffff raw: ffffea0004243c20 ffffea0004243ba0 0000000000000000 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801090ef680: f2 f2 f2 f2 f2 f2 f2 01 f2 f2 f2 f2 f2 f2 f2 00 ffff8801090ef700: f2 f2 f2 f2 f2 f2 f2 00 02 f2 f2 f2 f2 f2 f2 00 >ffff8801090ef780: 00 f2 f2 f2 f2 f2 f2 00 00 f2 f2 f2 f2 f2 f2 00 ^ ffff8801090ef800: 00 f2 f2 f2 f2 f2 f2 00 00 00 00 02 f2 f2 f2 f2 ffff8801090ef880: f2 f2 f2 00 00 00 00 00 00 00 00 f2 f2 f2 f2 00 ================================================================== Signed-off-by: Vincent Pelletier Reviewed-by: Mike Christie Signed-off-by: Martin K. Petersen --- drivers/target/iscsi/iscsi_target_auth.c | 30 +++++++++++------------- 1 file changed, 14 insertions(+), 16 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c index 9518ffd8b8ba..6c3b4c022894 100644 --- a/drivers/target/iscsi/iscsi_target_auth.c +++ b/drivers/target/iscsi/iscsi_target_auth.c @@ -26,18 +26,6 @@ #include "iscsi_target_nego.h" #include "iscsi_target_auth.h" -static int chap_string_to_hex(unsigned char *dst, unsigned char *src, int len) -{ - int j = DIV_ROUND_UP(len, 2), rc; - - rc = hex2bin(dst, src, j); - if (rc < 0) - pr_debug("CHAP string contains non hex digit symbols\n"); - - dst[j] = '\0'; - return j; -} - static void chap_binaryhex_to_asciihex(char *dst, char *src, int src_len) { int i; @@ -248,9 +236,16 @@ static int chap_server_compute_md5( pr_err("Could not find CHAP_R.\n"); goto out; } + if (strlen(chap_r) != MD5_SIGNATURE_SIZE * 2) { + pr_err("Malformed CHAP_R\n"); + goto out; + } + if (hex2bin(client_digest, chap_r, MD5_SIGNATURE_SIZE) < 0) { + pr_err("Malformed CHAP_R\n"); + goto out; + } pr_debug("[server] Got CHAP_R=%s\n", chap_r); - chap_string_to_hex(client_digest, chap_r, strlen(chap_r)); tfm = crypto_alloc_shash("md5", 0, 0); if (IS_ERR(tfm)) { @@ -349,9 +344,7 @@ static int chap_server_compute_md5( pr_err("Could not find CHAP_C.\n"); goto out; } - pr_debug("[server] Got CHAP_C=%s\n", challenge); - challenge_len = chap_string_to_hex(challenge_binhex, challenge, - strlen(challenge)); + challenge_len = DIV_ROUND_UP(strlen(challenge), 2); if (!challenge_len) { pr_err("Unable to convert incoming challenge\n"); goto out; @@ -360,6 +353,11 @@ static int chap_server_compute_md5( pr_err("CHAP_C exceeds maximum binary size of 1024 bytes\n"); goto out; } + if (hex2bin(challenge_binhex, challenge, challenge_len) < 0) { + pr_err("Malformed CHAP_C\n"); + goto out; + } + pr_debug("[server] Got CHAP_C=%s\n", challenge); /* * During mutual authentication, the CHAP_C generated by the * initiator must not match the original CHAP_C generated by From 8c39e2699f8acb2e29782a834e56306da24937fe Mon Sep 17 00:00:00 2001 From: Vincent Pelletier Date: Sun, 9 Sep 2018 04:09:27 +0000 Subject: [PATCH 1234/1762] scsi: target: iscsi: Use bin2hex instead of a re-implementation Signed-off-by: Vincent Pelletier Reviewed-by: Mike Christie Signed-off-by: Martin K. Petersen --- drivers/target/iscsi/iscsi_target_auth.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c index 6c3b4c022894..4e680d753941 100644 --- a/drivers/target/iscsi/iscsi_target_auth.c +++ b/drivers/target/iscsi/iscsi_target_auth.c @@ -26,15 +26,6 @@ #include "iscsi_target_nego.h" #include "iscsi_target_auth.h" -static void chap_binaryhex_to_asciihex(char *dst, char *src, int src_len) -{ - int i; - - for (i = 0; i < src_len; i++) { - sprintf(&dst[i*2], "%02x", (int) src[i] & 0xff); - } -} - static int chap_gen_challenge( struct iscsi_conn *conn, int caller, @@ -50,7 +41,7 @@ static int chap_gen_challenge( ret = get_random_bytes_wait(chap->challenge, CHAP_CHALLENGE_LENGTH); if (unlikely(ret)) return ret; - chap_binaryhex_to_asciihex(challenge_asciihex, chap->challenge, + bin2hex(challenge_asciihex, chap->challenge, CHAP_CHALLENGE_LENGTH); /* * Set CHAP_C, and copy the generated challenge into c_str. @@ -289,7 +280,7 @@ static int chap_server_compute_md5( goto out; } - chap_binaryhex_to_asciihex(response, server_digest, MD5_SIGNATURE_SIZE); + bin2hex(response, server_digest, MD5_SIGNATURE_SIZE); pr_debug("[server] MD5 Server Digest: %s\n", response); if (memcmp(server_digest, client_digest, MD5_SIGNATURE_SIZE) != 0) { @@ -411,7 +402,7 @@ static int chap_server_compute_md5( /* * Convert response from binary hex to ascii hext. */ - chap_binaryhex_to_asciihex(response, digest, MD5_SIGNATURE_SIZE); + bin2hex(response, digest, MD5_SIGNATURE_SIZE); *nr_out_len += sprintf(nr_out_ptr + *nr_out_len, "CHAP_R=0x%s", response); *nr_out_len += 1; From 318ddb34b2052f838aa243d07173e2badf3e630e Mon Sep 17 00:00:00 2001 From: Wen Xiong Date: Thu, 20 Sep 2018 19:32:12 -0500 Subject: [PATCH 1235/1762] scsi: ipr: System hung while dlpar adding primary ipr adapter back While dlpar adding primary ipr adapter back, driver goes through adapter initialization then schedule ipr_worker_thread to start te disk scan by dropping the host lock, calling scsi_add_device. Then get the adapter reset request again, so driver does scsi_block_requests, this will cause the scsi_add_device get hung until we unblock. But we can't run ipr_worker_thread to do the unblock because its stuck in scsi_add_device. This patch fixes the issue. [mkp: typo and whitespace fixes] Signed-off-by: Wen Xiong Acked-by: Brian King Signed-off-by: Martin K. Petersen --- drivers/scsi/ipr.c | 110 ++++++++++++++++++++++++++------------------- drivers/scsi/ipr.h | 1 + 2 files changed, 64 insertions(+), 47 deletions(-) diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index f2ec80b0ffc0..271990bc065b 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -3335,64 +3335,19 @@ static void ipr_release_dump(struct kref *kref) LEAVE; } -/** - * ipr_worker_thread - Worker thread - * @work: ioa config struct - * - * Called at task level from a work thread. This function takes care - * of adding and removing device from the mid-layer as configuration - * changes are detected by the adapter. - * - * Return value: - * nothing - **/ -static void ipr_worker_thread(struct work_struct *work) +static void ipr_add_remove_thread(struct work_struct *work) { unsigned long lock_flags; struct ipr_resource_entry *res; struct scsi_device *sdev; - struct ipr_dump *dump; struct ipr_ioa_cfg *ioa_cfg = - container_of(work, struct ipr_ioa_cfg, work_q); + container_of(work, struct ipr_ioa_cfg, scsi_add_work_q); u8 bus, target, lun; int did_work; ENTER; spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); - if (ioa_cfg->sdt_state == READ_DUMP) { - dump = ioa_cfg->dump; - if (!dump) { - spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); - return; - } - kref_get(&dump->kref); - spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); - ipr_get_ioa_dump(ioa_cfg, dump); - kref_put(&dump->kref, ipr_release_dump); - - spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); - if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout) - ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); - spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); - return; - } - - if (ioa_cfg->scsi_unblock) { - ioa_cfg->scsi_unblock = 0; - ioa_cfg->scsi_blocked = 0; - spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); - scsi_unblock_requests(ioa_cfg->host); - spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); - if (ioa_cfg->scsi_blocked) - scsi_block_requests(ioa_cfg->host); - } - - if (!ioa_cfg->scan_enabled) { - spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); - return; - } - restart: do { did_work = 0; @@ -3439,6 +3394,66 @@ restart: LEAVE; } +/** + * ipr_worker_thread - Worker thread + * @work: ioa config struct + * + * Called at task level from a work thread. This function takes care + * of adding and removing device from the mid-layer as configuration + * changes are detected by the adapter. + * + * Return value: + * nothing + **/ +static void ipr_worker_thread(struct work_struct *work) +{ + unsigned long lock_flags; + struct ipr_dump *dump; + struct ipr_ioa_cfg *ioa_cfg = + container_of(work, struct ipr_ioa_cfg, work_q); + + ENTER; + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); + + if (ioa_cfg->sdt_state == READ_DUMP) { + dump = ioa_cfg->dump; + if (!dump) { + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); + return; + } + kref_get(&dump->kref); + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); + ipr_get_ioa_dump(ioa_cfg, dump); + kref_put(&dump->kref, ipr_release_dump); + + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); + if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout) + ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); + return; + } + + if (ioa_cfg->scsi_unblock) { + ioa_cfg->scsi_unblock = 0; + ioa_cfg->scsi_blocked = 0; + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); + scsi_unblock_requests(ioa_cfg->host); + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); + if (ioa_cfg->scsi_blocked) + scsi_block_requests(ioa_cfg->host); + } + + if (!ioa_cfg->scan_enabled) { + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); + return; + } + + schedule_work(&ioa_cfg->scsi_add_work_q); + + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); + LEAVE; +} + #ifdef CONFIG_SCSI_IPR_TRACE /** * ipr_read_trace - Dump the adapter trace @@ -9933,6 +9948,7 @@ static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, INIT_LIST_HEAD(&ioa_cfg->free_res_q); INIT_LIST_HEAD(&ioa_cfg->used_res_q); INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); + INIT_WORK(&ioa_cfg->scsi_add_work_q, ipr_add_remove_thread); init_waitqueue_head(&ioa_cfg->reset_wait_q); init_waitqueue_head(&ioa_cfg->msi_wait_q); init_waitqueue_head(&ioa_cfg->eeh_wait_q); diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h index 68afbbde54d3..f6baa2351313 100644 --- a/drivers/scsi/ipr.h +++ b/drivers/scsi/ipr.h @@ -1575,6 +1575,7 @@ struct ipr_ioa_cfg { u8 saved_mode_page_len; struct work_struct work_q; + struct work_struct scsi_add_work_q; struct workqueue_struct *reset_work_q; wait_queue_head_t reset_wait_q; From f1f1fadacaf08b7cf11714c0c29f8fa4d4ef68a9 Mon Sep 17 00:00:00 2001 From: Johannes Thumshirn Date: Fri, 21 Sep 2018 09:01:01 +0200 Subject: [PATCH 1236/1762] scsi: sd: don't crash the host on invalid commands When sd_init_command() get's a command with a unknown req_op() it crashes the system via BUG(). This makes debugging the actual reason for the broken request cmd_flags pretty hard as the system is down before it's able to write out debugging data on the serial console or the trace buffer. Change the BUG() to a WARN_ON() and return BLKPREP_KILL to fail gracefully and return an I/O error to the producer of the request. Signed-off-by: Johannes Thumshirn Cc: Hannes Reinecke Cc: Bart Van Assche Cc: Christoph Hellwig Reviewed-by: Christoph Hellwig Reviewed-by: Bart Van Assche Signed-off-by: Martin K. Petersen --- drivers/scsi/sd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 5e4f10d28065..4a57ffecc7e6 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1276,7 +1276,8 @@ static int sd_init_command(struct scsi_cmnd *cmd) case REQ_OP_ZONE_RESET: return sd_zbc_setup_reset_cmnd(cmd); default: - BUG(); + WARN_ON_ONCE(1); + return BLKPREP_KILL; } } From 624d1a7cd8991e33dad96ab4629a52c412540e65 Mon Sep 17 00:00:00 2001 From: Dmytro Prokopchuk Date: Fri, 21 Sep 2018 04:59:59 +0000 Subject: [PATCH 1237/1762] ASoC: rsnd: fixup SSI clock during suspend/resume modes Prepare <-> Cleanup functions pair has balanced calls. But in case of suspend mode no call to rsnd_soc_dai_shutdown() function, so cleanup isn't called. OTOH during resume mode function rsnd_soc_dai_prepare() is called, but calling rsnd_ssi_prepare() is skipped (rsnd_status_update() returns zero, bacause was not cleanup before). We need to call rsnd_ssi_prepare(), because it enables SSI clocks by calling rsnd_ssi_master_clk_start(). This patch allows to call prepare/cleanup functions always. Signed-off-by: Dmytro Prokopchuk Tested-by: Hiroyuki Yokoyama [kuninori: adjusted to upstream] Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/sh/rcar/dma.c | 7 +++---- sound/soc/sh/rcar/rsnd.h | 14 +++++++------- 2 files changed, 10 insertions(+), 11 deletions(-) diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c index 0bbc4b0ea2c6..6d1947515dc8 100644 --- a/sound/soc/sh/rcar/dma.c +++ b/sound/soc/sh/rcar/dma.c @@ -134,10 +134,9 @@ static int rsnd_dmaen_prepare(struct rsnd_mod *mod, struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma); struct device *dev = rsnd_priv_to_dev(priv); - if (dmaen->chan) { - dev_err(dev, "it already has dma channel\n"); - return -EIO; - } + /* maybe suspended */ + if (dmaen->chan) + return 0; /* * DMAEngine request uses mutex lock. diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h index e857311ee5c1..4464d1d0a042 100644 --- a/sound/soc/sh/rcar/rsnd.h +++ b/sound/soc/sh/rcar/rsnd.h @@ -318,9 +318,8 @@ struct rsnd_mod { /* * status * - * 0xH0000CBA + * 0xH0000CB0 * - * A 0: prepare 1: cleanup * B 0: init 1: quit * C 0: start 1: stop * @@ -331,9 +330,8 @@ struct rsnd_mod { * H 0: hw_params * H 0: pointer * H 0: prepare + * H 0: cleanup */ -#define __rsnd_mod_shift_prepare 0 -#define __rsnd_mod_shift_cleanup 0 #define __rsnd_mod_shift_init 4 #define __rsnd_mod_shift_quit 4 #define __rsnd_mod_shift_start 8 @@ -345,11 +343,13 @@ struct rsnd_mod { #define __rsnd_mod_shift_fallback 28 /* always called */ #define __rsnd_mod_shift_hw_params 28 /* always called */ #define __rsnd_mod_shift_pointer 28 /* always called */ +#define __rsnd_mod_shift_prepare 28 /* always called */ +#define __rsnd_mod_shift_cleanup 28 /* always called */ #define __rsnd_mod_add_probe 0 #define __rsnd_mod_add_remove 0 -#define __rsnd_mod_add_prepare 1 -#define __rsnd_mod_add_cleanup -1 +#define __rsnd_mod_add_prepare 0 +#define __rsnd_mod_add_cleanup 0 #define __rsnd_mod_add_init 1 #define __rsnd_mod_add_quit -1 #define __rsnd_mod_add_start 1 @@ -363,7 +363,7 @@ struct rsnd_mod { #define __rsnd_mod_call_probe 0 #define __rsnd_mod_call_remove 0 #define __rsnd_mod_call_prepare 0 -#define __rsnd_mod_call_cleanup 1 +#define __rsnd_mod_call_cleanup 0 #define __rsnd_mod_call_init 0 #define __rsnd_mod_call_quit 1 #define __rsnd_mod_call_start 0 From 368dee9459472b44f760a35cd07a6f3b90b3e549 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 21 Sep 2018 05:23:01 +0000 Subject: [PATCH 1238/1762] ASoC: add for_each_component() macro To be more readable code, this patch adds new for_each_component() macro, and replace existing code to it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index d8625ac2b201..b9b33c8cac2e 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -54,6 +54,9 @@ static DEFINE_MUTEX(client_mutex); static LIST_HEAD(component_list); static LIST_HEAD(unbind_card_list); +#define for_each_component(component) \ + list_for_each_entry(component, &component_list, list) + /* * This is a timeout to do a DAPM powerdown after a stream is closed(). * It can be used to eliminate pops between different playback streams, e.g. @@ -176,7 +179,7 @@ static int dai_list_show(struct seq_file *m, void *v) mutex_lock(&client_mutex); - list_for_each_entry(component, &component_list, list) + for_each_component(component) list_for_each_entry(dai, &component->dai_list, list) seq_printf(m, "%s\n", dai->name); @@ -192,7 +195,7 @@ static int component_list_show(struct seq_file *m, void *v) mutex_lock(&client_mutex); - list_for_each_entry(component, &component_list, list) + for_each_component(component) seq_printf(m, "%s\n", component->name); mutex_unlock(&client_mutex); @@ -725,7 +728,7 @@ static struct snd_soc_component *soc_find_component( lockdep_assert_held(&client_mutex); - list_for_each_entry(component, &component_list, list) { + for_each_component(component) { if (of_node) { if (component->dev->of_node == of_node) return component; @@ -775,7 +778,7 @@ struct snd_soc_dai *snd_soc_find_dai( lockdep_assert_held(&client_mutex); /* Find CPU DAI from registered DAIs*/ - list_for_each_entry(component, &component_list, list) { + for_each_component(component) { if (!snd_soc_is_matching_component(dlc, component)) continue; list_for_each_entry(dai, &component->dai_list, list) { @@ -902,7 +905,7 @@ static int soc_bind_dai_link(struct snd_soc_card *card, rtd->codec_dai = codec_dais[0]; /* find one from the set of registered platforms */ - list_for_each_entry(component, &component_list, list) { + for_each_component(component) { if (!snd_soc_is_matching_component(dai_link->platform, component)) continue; @@ -1874,7 +1877,7 @@ static void soc_check_tplg_fes(struct snd_soc_card *card) struct snd_soc_dai_link *dai_link; int i; - list_for_each_entry(component, &component_list, list) { + for_each_component(component) { /* does this component override FEs ? */ if (!component->driver->ignore_machine) @@ -3091,6 +3094,7 @@ static void snd_soc_component_add(struct snd_soc_component *component) snd_soc_component_setup_regmap(component); } + /* see for_each_component */ list_add(&component->list, &component_list); INIT_LIST_HEAD(&component->dobj_list); @@ -3226,7 +3230,7 @@ static int __snd_soc_unregister_component(struct device *dev) int found = 0; mutex_lock(&client_mutex); - list_for_each_entry(component, &component_list, list) { + for_each_component(component) { if (dev != component->dev) continue; @@ -3258,7 +3262,7 @@ struct snd_soc_component *snd_soc_lookup_component(struct device *dev, ret = NULL; mutex_lock(&client_mutex); - list_for_each_entry(component, &component_list, list) { + for_each_component(component) { if (dev != component->dev) continue; @@ -3658,7 +3662,7 @@ int snd_soc_get_dai_id(struct device_node *ep) */ ret = -ENOTSUPP; mutex_lock(&client_mutex); - list_for_each_entry(pos, &component_list, list) { + for_each_component(pos) { struct device_node *component_of_node = pos->dev->of_node; if (!component_of_node && pos->dev->parent) @@ -3688,7 +3692,7 @@ int snd_soc_get_dai_name(struct of_phandle_args *args, int ret = -EPROBE_DEFER; mutex_lock(&client_mutex); - list_for_each_entry(pos, &component_list, list) { + for_each_component(pos) { component_of_node = pos->dev->of_node; if (!component_of_node && pos->dev->parent) component_of_node = pos->dev->parent->of_node; From 15a0c64572463eddf59e80aa643d3a87809a7d9b Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 21 Sep 2018 05:23:17 +0000 Subject: [PATCH 1239/1762] ASoC: add for_each_component_dais() macro To be more readable code, this patch adds new for_each_component_dais() macro, and replace existing code to it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/soc.h | 5 +++++ sound/soc/soc-core.c | 11 ++++++----- 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index 93aa894a57ef..f1dab1f4b194 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -864,6 +864,11 @@ struct snd_soc_component { #endif }; +#define for_each_component_dais(component, dai)\ + list_for_each_entry(dai, &(component)->dai_list, list) +#define for_each_component_dais_safe(component, dai, _dai)\ + list_for_each_entry_safe(dai, _dai, &(component)->dai_list, list) + struct snd_soc_rtdcom_list { struct snd_soc_component *component; struct list_head list; /* rtd::component_list */ diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index b9b33c8cac2e..62e8e36062df 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -180,7 +180,7 @@ static int dai_list_show(struct seq_file *m, void *v) mutex_lock(&client_mutex); for_each_component(component) - list_for_each_entry(dai, &component->dai_list, list) + for_each_component_dais(component, dai) seq_printf(m, "%s\n", dai->name); mutex_unlock(&client_mutex); @@ -781,7 +781,7 @@ struct snd_soc_dai *snd_soc_find_dai( for_each_component(component) { if (!snd_soc_is_matching_component(dlc, component)) continue; - list_for_each_entry(dai, &component->dai_list, list) { + for_each_component_dais(component, dai) { if (dlc->dai_name && strcmp(dai->name, dlc->dai_name) && (!dai->driver->name || strcmp(dai->driver->name, dlc->dai_name))) @@ -1312,7 +1312,7 @@ static int soc_probe_component(struct snd_soc_card *card, } } - list_for_each_entry(dai, &component->dai_list, list) { + for_each_component_dais(component, dai) { ret = snd_soc_dapm_new_dai_widgets(dapm, dai); if (ret != 0) { dev_err(component->dev, @@ -2842,7 +2842,7 @@ static void snd_soc_unregister_dais(struct snd_soc_component *component) { struct snd_soc_dai *dai, *_dai; - list_for_each_entry_safe(dai, _dai, &component->dai_list, list) { + for_each_component_dais_safe(component, dai, _dai) { dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n", dai->name); list_del(&dai->list); @@ -2894,6 +2894,7 @@ static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, if (!dai->driver->ops) dai->driver->ops = &null_dai_ops; + /* see for_each_component_dais */ list_add_tail(&dai->list, &component->dai_list); component->num_dai++; @@ -3728,7 +3729,7 @@ int snd_soc_get_dai_name(struct of_phandle_args *args, ret = 0; /* find target DAI */ - list_for_each_entry(dai, &pos->dai_list, list) { + for_each_component_dais(pos, dai) { if (id == 0) break; id--; From 5607fff303636d48b88414c6be353d9fed700af2 Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Tue, 18 Sep 2018 09:01:44 -0700 Subject: [PATCH 1240/1762] bpf: sockmap only allow ESTABLISHED sock state After this patch we only allow socks that are in ESTABLISHED state or are being added via a sock_ops event that is transitioning into an ESTABLISHED state. By allowing sock_ops events we allow users to manage sockmaps directly from sock ops programs. The two supported sock_ops ops are BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB and BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB. Similar to TLS ULP this ensures sk_user_data is correct. Reported-by: Eric Dumazet Fixes: 1aa12bdf1bfb ("bpf: sockmap, add sock close() hook to remove socks") Signed-off-by: John Fastabend Acked-by: Yonghong Song Signed-off-by: Daniel Borkmann --- kernel/bpf/sockmap.c | 31 ++++++++++++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-) diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c index 488ef9663c01..1f97b559892a 100644 --- a/kernel/bpf/sockmap.c +++ b/kernel/bpf/sockmap.c @@ -2097,8 +2097,12 @@ static int sock_map_update_elem(struct bpf_map *map, return -EINVAL; } + /* ULPs are currently supported only for TCP sockets in ESTABLISHED + * state. + */ if (skops.sk->sk_type != SOCK_STREAM || - skops.sk->sk_protocol != IPPROTO_TCP) { + skops.sk->sk_protocol != IPPROTO_TCP || + skops.sk->sk_state != TCP_ESTABLISHED) { fput(socket->file); return -EOPNOTSUPP; } @@ -2453,6 +2457,16 @@ static int sock_hash_update_elem(struct bpf_map *map, return -EINVAL; } + /* ULPs are currently supported only for TCP sockets in ESTABLISHED + * state. + */ + if (skops.sk->sk_type != SOCK_STREAM || + skops.sk->sk_protocol != IPPROTO_TCP || + skops.sk->sk_state != TCP_ESTABLISHED) { + fput(socket->file); + return -EOPNOTSUPP; + } + lock_sock(skops.sk); preempt_disable(); rcu_read_lock(); @@ -2543,10 +2557,22 @@ const struct bpf_map_ops sock_hash_ops = { .map_check_btf = map_check_no_btf, }; +static bool bpf_is_valid_sock_op(struct bpf_sock_ops_kern *ops) +{ + return ops->op == BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB || + ops->op == BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB; +} BPF_CALL_4(bpf_sock_map_update, struct bpf_sock_ops_kern *, bpf_sock, struct bpf_map *, map, void *, key, u64, flags) { WARN_ON_ONCE(!rcu_read_lock_held()); + + /* ULPs are currently supported only for TCP sockets in ESTABLISHED + * state. This checks that the sock ops triggering the update is + * one indicating we are (or will be soon) in an ESTABLISHED state. + */ + if (!bpf_is_valid_sock_op(bpf_sock)) + return -EOPNOTSUPP; return sock_map_ctx_update_elem(bpf_sock, map, key, flags); } @@ -2565,6 +2591,9 @@ BPF_CALL_4(bpf_sock_hash_update, struct bpf_sock_ops_kern *, bpf_sock, struct bpf_map *, map, void *, key, u64, flags) { WARN_ON_ONCE(!rcu_read_lock_held()); + + if (!bpf_is_valid_sock_op(bpf_sock)) + return -EOPNOTSUPP; return sock_hash_ctx_update_elem(bpf_sock, map, key, flags); } From b05545e15e1ff1d6a6a8593971275f9cc3e6b92b Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Tue, 18 Sep 2018 09:01:49 -0700 Subject: [PATCH 1241/1762] bpf: sockmap, fix transition through disconnect without close It is possible (via shutdown()) for TCP socks to go trough TCP_CLOSE state via tcp_disconnect() without actually calling tcp_close which would then call our bpf_tcp_close() callback. Because of this a user could disconnect a socket then put it in a LISTEN state which would break our assumptions about sockets always being ESTABLISHED state. To resolve this rely on the unhash hook, which is called in the disconnect case, to remove the sock from the sockmap. Reported-by: Eric Dumazet Fixes: 1aa12bdf1bfb ("bpf: sockmap, add sock close() hook to remove socks") Signed-off-by: John Fastabend Acked-by: Yonghong Song Signed-off-by: Daniel Borkmann --- kernel/bpf/sockmap.c | 60 ++++++++++++++++++++++++++++++-------------- 1 file changed, 41 insertions(+), 19 deletions(-) diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c index 1f97b559892a..0a0f2ec75370 100644 --- a/kernel/bpf/sockmap.c +++ b/kernel/bpf/sockmap.c @@ -132,6 +132,7 @@ struct smap_psock { struct work_struct gc_work; struct proto *sk_proto; + void (*save_unhash)(struct sock *sk); void (*save_close)(struct sock *sk, long timeout); void (*save_data_ready)(struct sock *sk); void (*save_write_space)(struct sock *sk); @@ -143,6 +144,7 @@ static int bpf_tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, static int bpf_tcp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size); static int bpf_tcp_sendpage(struct sock *sk, struct page *page, int offset, size_t size, int flags); +static void bpf_tcp_unhash(struct sock *sk); static void bpf_tcp_close(struct sock *sk, long timeout); static inline struct smap_psock *smap_psock_sk(const struct sock *sk) @@ -184,6 +186,7 @@ static void build_protos(struct proto prot[SOCKMAP_NUM_CONFIGS], struct proto *base) { prot[SOCKMAP_BASE] = *base; + prot[SOCKMAP_BASE].unhash = bpf_tcp_unhash; prot[SOCKMAP_BASE].close = bpf_tcp_close; prot[SOCKMAP_BASE].recvmsg = bpf_tcp_recvmsg; prot[SOCKMAP_BASE].stream_memory_read = bpf_tcp_stream_read; @@ -217,6 +220,7 @@ static int bpf_tcp_init(struct sock *sk) return -EBUSY; } + psock->save_unhash = sk->sk_prot->unhash; psock->save_close = sk->sk_prot->close; psock->sk_proto = sk->sk_prot; @@ -305,30 +309,12 @@ static struct smap_psock_map_entry *psock_map_pop(struct sock *sk, return e; } -static void bpf_tcp_close(struct sock *sk, long timeout) +static void bpf_tcp_remove(struct sock *sk, struct smap_psock *psock) { - void (*close_fun)(struct sock *sk, long timeout); struct smap_psock_map_entry *e; struct sk_msg_buff *md, *mtmp; - struct smap_psock *psock; struct sock *osk; - lock_sock(sk); - rcu_read_lock(); - psock = smap_psock_sk(sk); - if (unlikely(!psock)) { - rcu_read_unlock(); - release_sock(sk); - return sk->sk_prot->close(sk, timeout); - } - - /* The psock may be destroyed anytime after exiting the RCU critial - * section so by the time we use close_fun the psock may no longer - * be valid. However, bpf_tcp_close is called with the sock lock - * held so the close hook and sk are still valid. - */ - close_fun = psock->save_close; - if (psock->cork) { free_start_sg(psock->sock, psock->cork, true); kfree(psock->cork); @@ -379,6 +365,42 @@ static void bpf_tcp_close(struct sock *sk, long timeout) kfree(e); e = psock_map_pop(sk, psock); } +} + +static void bpf_tcp_unhash(struct sock *sk) +{ + void (*unhash_fun)(struct sock *sk); + struct smap_psock *psock; + + rcu_read_lock(); + psock = smap_psock_sk(sk); + if (unlikely(!psock)) { + rcu_read_unlock(); + if (sk->sk_prot->unhash) + sk->sk_prot->unhash(sk); + return; + } + unhash_fun = psock->save_unhash; + bpf_tcp_remove(sk, psock); + rcu_read_unlock(); + unhash_fun(sk); +} + +static void bpf_tcp_close(struct sock *sk, long timeout) +{ + void (*close_fun)(struct sock *sk, long timeout); + struct smap_psock *psock; + + lock_sock(sk); + rcu_read_lock(); + psock = smap_psock_sk(sk); + if (unlikely(!psock)) { + rcu_read_unlock(); + release_sock(sk); + return sk->sk_prot->close(sk, timeout); + } + close_fun = psock->save_close; + bpf_tcp_remove(sk, psock); rcu_read_unlock(); release_sock(sk); close_fun(sk, timeout); From 5028027844cfc6168e39650abecd817ba64c9d98 Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Tue, 18 Sep 2018 09:01:54 -0700 Subject: [PATCH 1242/1762] bpf: test_maps, only support ESTABLISHED socks Ensure that sockets added to a sock{map|hash} that is not in the ESTABLISHED state is rejected. Fixes: 1aa12bdf1bfb ("bpf: sockmap, add sock close() hook to remove socks") Signed-off-by: John Fastabend Acked-by: Yonghong Song Signed-off-by: Daniel Borkmann --- tools/testing/selftests/bpf/test_maps.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/bpf/test_maps.c b/tools/testing/selftests/bpf/test_maps.c index 6f54f84144a0..9b552c0fc47d 100644 --- a/tools/testing/selftests/bpf/test_maps.c +++ b/tools/testing/selftests/bpf/test_maps.c @@ -580,7 +580,11 @@ static void test_sockmap(int tasks, void *data) /* Test update without programs */ for (i = 0; i < 6; i++) { err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_ANY); - if (err) { + if (i < 2 && !err) { + printf("Allowed update sockmap '%i:%i' not in ESTABLISHED\n", + i, sfd[i]); + goto out_sockmap; + } else if (i >= 2 && err) { printf("Failed noprog update sockmap '%i:%i'\n", i, sfd[i]); goto out_sockmap; @@ -741,7 +745,7 @@ static void test_sockmap(int tasks, void *data) } /* Test map update elem afterwards fd lives in fd and map_fd */ - for (i = 0; i < 6; i++) { + for (i = 2; i < 6; i++) { err = bpf_map_update_elem(map_fd_rx, &i, &sfd[i], BPF_ANY); if (err) { printf("Failed map_fd_rx update sockmap %i '%i:%i'\n", @@ -845,7 +849,7 @@ static void test_sockmap(int tasks, void *data) } /* Delete the elems without programs */ - for (i = 0; i < 6; i++) { + for (i = 2; i < 6; i++) { err = bpf_map_delete_elem(fd, &i); if (err) { printf("Failed delete sockmap %i '%i:%i'\n", From f88b4c01b97e09535505cf3c327fdbce55c27f00 Mon Sep 17 00:00:00 2001 From: Sean Tranchetti Date: Thu, 20 Sep 2018 14:29:45 -0600 Subject: [PATCH 1243/1762] netlabel: check for IPV4MASK in addrinfo_get netlbl_unlabel_addrinfo_get() assumes that if it finds the NLBL_UNLABEL_A_IPV4ADDR attribute, it must also have the NLBL_UNLABEL_A_IPV4MASK attribute as well. However, this is not necessarily the case as the current checks in netlbl_unlabel_staticadd() and friends are not sufficent to enforce this. If passed a netlink message with NLBL_UNLABEL_A_IPV4ADDR, NLBL_UNLABEL_A_IPV6ADDR, and NLBL_UNLABEL_A_IPV6MASK attributes, these functions will all call netlbl_unlabel_addrinfo_get() which will then attempt dereference NULL when fetching the non-existent NLBL_UNLABEL_A_IPV4MASK attribute: Unable to handle kernel NULL pointer dereference at virtual address 0 Process unlab (pid: 31762, stack limit = 0xffffff80502d8000) Call trace: netlbl_unlabel_addrinfo_get+0x44/0xd8 netlbl_unlabel_staticremovedef+0x98/0xe0 genl_rcv_msg+0x354/0x388 netlink_rcv_skb+0xac/0x118 genl_rcv+0x34/0x48 netlink_unicast+0x158/0x1f0 netlink_sendmsg+0x32c/0x338 sock_sendmsg+0x44/0x60 ___sys_sendmsg+0x1d0/0x2a8 __sys_sendmsg+0x64/0xb4 SyS_sendmsg+0x34/0x4c el0_svc_naked+0x34/0x38 Code: 51001149 7100113f 540000a0 f9401508 (79400108) ---[ end trace f6438a488e737143 ]--- Kernel panic - not syncing: Fatal exception Signed-off-by: Sean Tranchetti Signed-off-by: David S. Miller --- net/netlabel/netlabel_unlabeled.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c index c070dfc0190a..c92894c3e40a 100644 --- a/net/netlabel/netlabel_unlabeled.c +++ b/net/netlabel/netlabel_unlabeled.c @@ -781,7 +781,8 @@ static int netlbl_unlabel_addrinfo_get(struct genl_info *info, { u32 addr_len; - if (info->attrs[NLBL_UNLABEL_A_IPV4ADDR]) { + if (info->attrs[NLBL_UNLABEL_A_IPV4ADDR] && + info->attrs[NLBL_UNLABEL_A_IPV4MASK]) { addr_len = nla_len(info->attrs[NLBL_UNLABEL_A_IPV4ADDR]); if (addr_len != sizeof(struct in_addr) && addr_len != nla_len(info->attrs[NLBL_UNLABEL_A_IPV4MASK])) From 86f9bd1ff61c413a2a251fa736463295e4e24733 Mon Sep 17 00:00:00 2001 From: Jeff Barnhill <0xeffeff@gmail.com> Date: Fri, 21 Sep 2018 00:45:27 +0000 Subject: [PATCH 1244/1762] net/ipv6: Display all addresses in output of /proc/net/if_inet6 The backend handling for /proc/net/if_inet6 in addrconf.c doesn't properly handle starting/stopping the iteration. The problem is that at some point during the iteration, an overflow is detected and the process is subsequently stopped. The item being shown via seq_printf() when the overflow occurs is not actually shown, though. When start() is subsequently called to resume iterating, it returns the next item, and thus the item that was being processed when the overflow occurred never gets printed. Alter the meaning of the private data member "offset". Currently, when it is not 0 (which only happens at the very beginning), "offset" represents the next hlist item to be printed. After this change, "offset" always represents the current item. This is also consistent with the private data member "bucket", which represents the current bucket, and also the use of "pos" as defined in seq_file.txt: The pos passed to start() will always be either zero, or the most recent pos used in the previous session. Signed-off-by: Jeff Barnhill <0xeffeff@gmail.com> Signed-off-by: David S. Miller --- net/ipv6/addrconf.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index d51a8c0b3372..c63ccce6425f 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -4201,7 +4201,6 @@ static struct inet6_ifaddr *if6_get_first(struct seq_file *seq, loff_t pos) p++; continue; } - state->offset++; return ifa; } @@ -4225,13 +4224,12 @@ static struct inet6_ifaddr *if6_get_next(struct seq_file *seq, return ifa; } + state->offset = 0; while (++state->bucket < IN6_ADDR_HSIZE) { - state->offset = 0; hlist_for_each_entry_rcu(ifa, &inet6_addr_lst[state->bucket], addr_lst) { if (!net_eq(dev_net(ifa->idev->dev), net)) continue; - state->offset++; return ifa; } } From 54be5b8ce33f8d1a05b258070c81ed98f935883d Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Fri, 21 Sep 2018 02:53:17 +0000 Subject: [PATCH 1245/1762] PCI: hv: Fix return value check in hv_pci_assign_slots() In case of error, the function pci_create_slot() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: a15f2c08c708 ("PCI: hv: support reporting serial number as slot information") Signed-off-by: Wei Yongjun Signed-off-by: David S. Miller --- drivers/pci/controller/pci-hyperv.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index ee80e79db21a..9ba4d12c179c 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -1484,8 +1484,10 @@ static void hv_pci_assign_slots(struct hv_pcibus_device *hbus) snprintf(name, SLOT_NAME_SIZE, "%u", hpdev->desc.ser); hpdev->pci_slot = pci_create_slot(hbus->pci_bus, slot_nr, name, NULL); - if (!hpdev->pci_slot) + if (IS_ERR(hpdev->pci_slot)) { pr_warn("pci_create slot %s failed\n", name); + hpdev->pci_slot = NULL; + } } } From 72b462798c2a258725dd741d1c6c139446e20d12 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Fri, 21 Sep 2018 10:53:47 +0800 Subject: [PATCH 1246/1762] net: seeq: fix return type of ndo_start_xmit function The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing Signed-off-by: David S. Miller --- drivers/net/ethernet/seeq/ether3.c | 5 +++-- drivers/net/ethernet/seeq/sgiseeq.c | 3 ++- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/seeq/ether3.c b/drivers/net/ethernet/seeq/ether3.c index c5bc124b41a9..d1bb73bf9914 100644 --- a/drivers/net/ethernet/seeq/ether3.c +++ b/drivers/net/ethernet/seeq/ether3.c @@ -77,7 +77,8 @@ static void ether3_setmulticastlist(struct net_device *dev); static int ether3_rx(struct net_device *dev, unsigned int maxcnt); static void ether3_tx(struct net_device *dev); static int ether3_open (struct net_device *dev); -static int ether3_sendpacket (struct sk_buff *skb, struct net_device *dev); +static netdev_tx_t ether3_sendpacket(struct sk_buff *skb, + struct net_device *dev); static irqreturn_t ether3_interrupt (int irq, void *dev_id); static int ether3_close (struct net_device *dev); static void ether3_setmulticastlist (struct net_device *dev); @@ -481,7 +482,7 @@ static void ether3_timeout(struct net_device *dev) /* * Transmit a packet */ -static int +static netdev_tx_t ether3_sendpacket(struct sk_buff *skb, struct net_device *dev) { unsigned long flags; diff --git a/drivers/net/ethernet/seeq/sgiseeq.c b/drivers/net/ethernet/seeq/sgiseeq.c index 573691bc3b71..70cce63a6081 100644 --- a/drivers/net/ethernet/seeq/sgiseeq.c +++ b/drivers/net/ethernet/seeq/sgiseeq.c @@ -578,7 +578,8 @@ static inline int sgiseeq_reset(struct net_device *dev) return 0; } -static int sgiseeq_start_xmit(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t +sgiseeq_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct sgiseeq_private *sp = netdev_priv(dev); struct hpc3_ethregs *hregs = sp->hregs; From f3bf939f3d4552becb115d76e17b3e5957bab4a2 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Fri, 21 Sep 2018 11:02:37 +0800 Subject: [PATCH 1247/1762] net: cirrus: fix return type of ndo_start_xmit function The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing Signed-off-by: David S. Miller --- drivers/net/ethernet/cirrus/ep93xx_eth.c | 2 +- drivers/net/ethernet/cirrus/mac89x0.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/cirrus/ep93xx_eth.c b/drivers/net/ethernet/cirrus/ep93xx_eth.c index e2a702996db4..13dfdfca49fc 100644 --- a/drivers/net/ethernet/cirrus/ep93xx_eth.c +++ b/drivers/net/ethernet/cirrus/ep93xx_eth.c @@ -332,7 +332,7 @@ static int ep93xx_poll(struct napi_struct *napi, int budget) return rx; } -static int ep93xx_xmit(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t ep93xx_xmit(struct sk_buff *skb, struct net_device *dev) { struct ep93xx_priv *ep = netdev_priv(dev); struct ep93xx_tdesc *txd; diff --git a/drivers/net/ethernet/cirrus/mac89x0.c b/drivers/net/ethernet/cirrus/mac89x0.c index 3f8fe8fd79cc..6324e80960c3 100644 --- a/drivers/net/ethernet/cirrus/mac89x0.c +++ b/drivers/net/ethernet/cirrus/mac89x0.c @@ -113,7 +113,7 @@ struct net_local { /* Index to functions, as function prototypes. */ static int net_open(struct net_device *dev); -static int net_send_packet(struct sk_buff *skb, struct net_device *dev); +static netdev_tx_t net_send_packet(struct sk_buff *skb, struct net_device *dev); static irqreturn_t net_interrupt(int irq, void *dev_id); static void set_multicast_list(struct net_device *dev); static void net_rx(struct net_device *dev); @@ -324,7 +324,7 @@ net_open(struct net_device *dev) return 0; } -static int +static netdev_tx_t net_send_packet(struct sk_buff *skb, struct net_device *dev) { struct net_local *lp = netdev_priv(dev); From 28d304efb88f18aadfe9219f0e4b2b0ef9558a3b Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Fri, 21 Sep 2018 11:05:50 +0800 Subject: [PATCH 1248/1762] net: sgi: fix return type of ndo_start_xmit function The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing Signed-off-by: David S. Miller --- drivers/net/ethernet/sgi/ioc3-eth.c | 4 ++-- drivers/net/ethernet/sgi/meth.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c index 18d533fdf14c..3140999642ba 100644 --- a/drivers/net/ethernet/sgi/ioc3-eth.c +++ b/drivers/net/ethernet/sgi/ioc3-eth.c @@ -99,7 +99,7 @@ struct ioc3_private { static int ioc3_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); static void ioc3_set_multicast_list(struct net_device *dev); -static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev); +static netdev_tx_t ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev); static void ioc3_timeout(struct net_device *dev); static inline unsigned int ioc3_hash(const unsigned char *addr); static inline void ioc3_stop(struct ioc3_private *ip); @@ -1390,7 +1390,7 @@ static struct pci_driver ioc3_driver = { .remove = ioc3_remove_one, }; -static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev) { unsigned long data; struct ioc3_private *ip = netdev_priv(dev); diff --git a/drivers/net/ethernet/sgi/meth.c b/drivers/net/ethernet/sgi/meth.c index ea55abd62ec7..703fbbefea44 100644 --- a/drivers/net/ethernet/sgi/meth.c +++ b/drivers/net/ethernet/sgi/meth.c @@ -697,7 +697,7 @@ static void meth_add_to_tx_ring(struct meth_private *priv, struct sk_buff *skb) /* * Transmit a packet (called by the kernel) */ -static int meth_tx(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t meth_tx(struct sk_buff *skb, struct net_device *dev) { struct meth_private *priv = netdev_priv(dev); unsigned long flags; From f0f25516e3b9efff2a34059347d13361d26e314a Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Fri, 21 Sep 2018 11:35:11 +0800 Subject: [PATCH 1249/1762] net: wiznet: fix return type of ndo_start_xmit function The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing Signed-off-by: David S. Miller --- drivers/net/ethernet/wiznet/w5100.c | 2 +- drivers/net/ethernet/wiznet/w5300.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/wiznet/w5100.c b/drivers/net/ethernet/wiznet/w5100.c index 2bdfb39215e9..d8ba512f166a 100644 --- a/drivers/net/ethernet/wiznet/w5100.c +++ b/drivers/net/ethernet/wiznet/w5100.c @@ -835,7 +835,7 @@ static void w5100_tx_work(struct work_struct *work) w5100_tx_skb(priv->ndev, skb); } -static int w5100_start_tx(struct sk_buff *skb, struct net_device *ndev) +static netdev_tx_t w5100_start_tx(struct sk_buff *skb, struct net_device *ndev) { struct w5100_priv *priv = netdev_priv(ndev); diff --git a/drivers/net/ethernet/wiznet/w5300.c b/drivers/net/ethernet/wiznet/w5300.c index 56ae573001e8..80fdbff67d82 100644 --- a/drivers/net/ethernet/wiznet/w5300.c +++ b/drivers/net/ethernet/wiznet/w5300.c @@ -365,7 +365,7 @@ static void w5300_tx_timeout(struct net_device *ndev) netif_wake_queue(ndev); } -static int w5300_start_tx(struct sk_buff *skb, struct net_device *ndev) +static netdev_tx_t w5300_start_tx(struct sk_buff *skb, struct net_device *ndev) { struct w5300_priv *priv = netdev_priv(ndev); From 648c361a568dcd098a3496c6c66bca4c8473e52b Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Fri, 21 Sep 2018 11:44:05 +0800 Subject: [PATCH 1250/1762] net: i825xx: fix return type of ndo_start_xmit function The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing Signed-off-by: David S. Miller --- drivers/net/ethernet/i825xx/ether1.c | 5 +++-- drivers/net/ethernet/i825xx/lib82596.c | 4 ++-- drivers/net/ethernet/i825xx/sun3_82586.c | 6 ++++-- 3 files changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/i825xx/ether1.c b/drivers/net/ethernet/i825xx/ether1.c index dc983450354b..35f6291a3672 100644 --- a/drivers/net/ethernet/i825xx/ether1.c +++ b/drivers/net/ethernet/i825xx/ether1.c @@ -64,7 +64,8 @@ static unsigned int net_debug = NET_DEBUG; #define RX_AREA_END 0x0fc00 static int ether1_open(struct net_device *dev); -static int ether1_sendpacket(struct sk_buff *skb, struct net_device *dev); +static netdev_tx_t ether1_sendpacket(struct sk_buff *skb, + struct net_device *dev); static irqreturn_t ether1_interrupt(int irq, void *dev_id); static int ether1_close(struct net_device *dev); static void ether1_setmulticastlist(struct net_device *dev); @@ -667,7 +668,7 @@ ether1_timeout(struct net_device *dev) netif_wake_queue(dev); } -static int +static netdev_tx_t ether1_sendpacket (struct sk_buff *skb, struct net_device *dev) { int tmp, tst, nopaddr, txaddr, tbdaddr, dataddr; diff --git a/drivers/net/ethernet/i825xx/lib82596.c b/drivers/net/ethernet/i825xx/lib82596.c index f00a1dc2128c..2f7ae118217f 100644 --- a/drivers/net/ethernet/i825xx/lib82596.c +++ b/drivers/net/ethernet/i825xx/lib82596.c @@ -347,7 +347,7 @@ static const char init_setup[] = 0x7f /* *multi IA */ }; static int i596_open(struct net_device *dev); -static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev); +static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev); static irqreturn_t i596_interrupt(int irq, void *dev_id); static int i596_close(struct net_device *dev); static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd); @@ -966,7 +966,7 @@ static void i596_tx_timeout (struct net_device *dev) } -static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct i596_private *lp = netdev_priv(dev); struct tx_cmd *tx_cmd; diff --git a/drivers/net/ethernet/i825xx/sun3_82586.c b/drivers/net/ethernet/i825xx/sun3_82586.c index 8bb15a8c2a40..1a86184d44c0 100644 --- a/drivers/net/ethernet/i825xx/sun3_82586.c +++ b/drivers/net/ethernet/i825xx/sun3_82586.c @@ -121,7 +121,8 @@ static int sun3_82586_probe1(struct net_device *dev,int ioaddr); static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id); static int sun3_82586_open(struct net_device *dev); static int sun3_82586_close(struct net_device *dev); -static int sun3_82586_send_packet(struct sk_buff *,struct net_device *); +static netdev_tx_t sun3_82586_send_packet(struct sk_buff *, + struct net_device *); static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev); static void set_multicast_list(struct net_device *dev); static void sun3_82586_timeout(struct net_device *dev); @@ -1002,7 +1003,8 @@ static void sun3_82586_timeout(struct net_device *dev) * send frame */ -static int sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t +sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev) { int len,i; #ifndef NO_NOPCOMMANDS From e6ce3822a9f264b3f24c1acdc624131fb014f2f0 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Fri, 21 Sep 2018 11:46:37 +0800 Subject: [PATCH 1251/1762] net: apple: fix return type of ndo_start_xmit function The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing Signed-off-by: David S. Miller --- drivers/net/ethernet/apple/bmac.c | 4 ++-- drivers/net/ethernet/apple/mace.c | 4 ++-- drivers/net/ethernet/apple/macmace.c | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/apple/bmac.c b/drivers/net/ethernet/apple/bmac.c index 024998d6d8c6..6a8e2567f2bd 100644 --- a/drivers/net/ethernet/apple/bmac.c +++ b/drivers/net/ethernet/apple/bmac.c @@ -154,7 +154,7 @@ static irqreturn_t bmac_txdma_intr(int irq, void *dev_id); static irqreturn_t bmac_rxdma_intr(int irq, void *dev_id); static void bmac_set_timeout(struct net_device *dev); static void bmac_tx_timeout(struct timer_list *t); -static int bmac_output(struct sk_buff *skb, struct net_device *dev); +static netdev_tx_t bmac_output(struct sk_buff *skb, struct net_device *dev); static void bmac_start(struct net_device *dev); #define DBDMA_SET(x) ( ((x) | (x) << 16) ) @@ -1456,7 +1456,7 @@ bmac_start(struct net_device *dev) spin_unlock_irqrestore(&bp->lock, flags); } -static int +static netdev_tx_t bmac_output(struct sk_buff *skb, struct net_device *dev) { struct bmac_data *bp = netdev_priv(dev); diff --git a/drivers/net/ethernet/apple/mace.c b/drivers/net/ethernet/apple/mace.c index 0b5429d76bcf..68b9ee489489 100644 --- a/drivers/net/ethernet/apple/mace.c +++ b/drivers/net/ethernet/apple/mace.c @@ -78,7 +78,7 @@ struct mace_data { static int mace_open(struct net_device *dev); static int mace_close(struct net_device *dev); -static int mace_xmit_start(struct sk_buff *skb, struct net_device *dev); +static netdev_tx_t mace_xmit_start(struct sk_buff *skb, struct net_device *dev); static void mace_set_multicast(struct net_device *dev); static void mace_reset(struct net_device *dev); static int mace_set_address(struct net_device *dev, void *addr); @@ -525,7 +525,7 @@ static inline void mace_set_timeout(struct net_device *dev) mp->timeout_active = 1; } -static int mace_xmit_start(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t mace_xmit_start(struct sk_buff *skb, struct net_device *dev) { struct mace_data *mp = netdev_priv(dev); volatile struct dbdma_regs __iomem *td = mp->tx_dma; diff --git a/drivers/net/ethernet/apple/macmace.c b/drivers/net/ethernet/apple/macmace.c index 137cbb470af2..376f2c2613e7 100644 --- a/drivers/net/ethernet/apple/macmace.c +++ b/drivers/net/ethernet/apple/macmace.c @@ -89,7 +89,7 @@ struct mace_frame { static int mace_open(struct net_device *dev); static int mace_close(struct net_device *dev); -static int mace_xmit_start(struct sk_buff *skb, struct net_device *dev); +static netdev_tx_t mace_xmit_start(struct sk_buff *skb, struct net_device *dev); static void mace_set_multicast(struct net_device *dev); static int mace_set_address(struct net_device *dev, void *addr); static void mace_reset(struct net_device *dev); @@ -444,7 +444,7 @@ static int mace_close(struct net_device *dev) * Transmit a frame */ -static int mace_xmit_start(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t mace_xmit_start(struct sk_buff *skb, struct net_device *dev) { struct mace_data *mp = netdev_priv(dev); unsigned long flags; From 83fe9a966111b51a34f10c35e568e45bff34de48 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 21 Sep 2018 11:07:55 +0300 Subject: [PATCH 1252/1762] devlink: double free in devlink_resource_fill() Smatch reports that devlink_dpipe_send_and_alloc_skb() frees the skb on error so this is a double free. We fixed a bunch of these bugs in commit 7fe4d6dcbcb4 ("devlink: Remove redundant free on error path") but we accidentally overlooked this one. Fixes: d9f9b9a4d05f ("devlink: Add support for resource abstraction") Signed-off-by: Dan Carpenter Signed-off-by: David S. Miller --- net/core/devlink.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/core/devlink.c b/net/core/devlink.c index 65fc366a78a4..8c0ed225e280 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -2592,7 +2592,7 @@ send_done: if (!nlh) { err = devlink_dpipe_send_and_alloc_skb(&skb, info); if (err) - goto err_skb_send_alloc; + return err; goto send_done; } return genlmsg_reply(skb, info); @@ -2600,7 +2600,6 @@ send_done: nla_put_failure: err = -EMSGSIZE; err_resource_put: -err_skb_send_alloc: nlmsg_free(skb); return err; } From 8ac1ee6f4d62e781e3b3fd8b9c42b70371427669 Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Fri, 21 Sep 2018 02:44:12 -0700 Subject: [PATCH 1253/1762] net/mlx4: Use cpumask_available for eq->affinity_mask Clang warns that the address of a pointer will always evaluated as true in a boolean context: drivers/net/ethernet/mellanox/mlx4/eq.c:243:11: warning: address of array 'eq->affinity_mask' will always evaluate to 'true' [-Wpointer-bool-conversion] if (!eq->affinity_mask || cpumask_empty(eq->affinity_mask)) ~~~~~^~~~~~~~~~~~~ 1 warning generated. Use cpumask_available, introduced in commit f7e30f01a9e2 ("cpumask: Add helper cpumask_available()"), which does the proper checking and avoids this warning. Link: https://github.com/ClangBuiltLinux/linux/issues/86 Signed-off-by: Nathan Chancellor Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/eq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c index 1f3372c1802e..2df92dbd38e1 100644 --- a/drivers/net/ethernet/mellanox/mlx4/eq.c +++ b/drivers/net/ethernet/mellanox/mlx4/eq.c @@ -240,7 +240,8 @@ static void mlx4_set_eq_affinity_hint(struct mlx4_priv *priv, int vec) struct mlx4_dev *dev = &priv->dev; struct mlx4_eq *eq = &priv->eq_table.eq[vec]; - if (!eq->affinity_mask || cpumask_empty(eq->affinity_mask)) + if (!cpumask_available(eq->affinity_mask) || + cpumask_empty(eq->affinity_mask)) return; hint_err = irq_set_affinity_hint(eq->irq, eq->affinity_mask); From b57e99b4b8b0ebdf9707424e7ddc0c392bdc5fe6 Mon Sep 17 00:00:00 2001 From: Omar Sandoval Date: Fri, 21 Sep 2018 16:44:34 -0700 Subject: [PATCH 1254/1762] block: use nanosecond resolution for iostat Klaus Kusche reported that the I/O busy time in /proc/diskstats was not updating properly on 4.18. This is because we started using ktime to track elapsed time, and we convert nanoseconds to jiffies when we update the partition counter. However, this gets rounded down, so any I/Os that take less than a jiffy are not accounted for. Previously in this case, the value of jiffies would sometimes increment while we were doing I/O, so at least some I/Os were accounted for. Let's convert the stats to use nanoseconds internally. We still report milliseconds as before, now more accurately than ever. The value is still truncated to 32 bits for backwards compatibility. Fixes: 522a777566f5 ("block: consolidate struct request timestamp fields") Cc: stable@vger.kernel.org Reported-by: Klaus Kusche Signed-off-by: Omar Sandoval Signed-off-by: Jens Axboe --- block/bio.c | 2 +- block/blk-core.c | 4 +--- block/genhd.c | 6 +++--- block/partition-generic.c | 6 +++--- include/linux/genhd.h | 5 ++++- 5 files changed, 12 insertions(+), 11 deletions(-) diff --git a/block/bio.c b/block/bio.c index 8c680a776171..0093bed81c0e 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1684,7 +1684,7 @@ void generic_end_io_acct(struct request_queue *q, int req_op, const int sgrp = op_stat_group(req_op); int cpu = part_stat_lock(); - part_stat_add(cpu, part, ticks[sgrp], duration); + part_stat_add(cpu, part, nsecs[sgrp], jiffies_to_nsecs(duration)); part_round_stats(q, cpu, part); part_dec_in_flight(q, part, op_is_write(req_op)); diff --git a/block/blk-core.c b/block/blk-core.c index 4dbc93f43b38..cff0a60ee200 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -2733,17 +2733,15 @@ void blk_account_io_done(struct request *req, u64 now) * containing request is enough. */ if (blk_do_io_stat(req) && !(req->rq_flags & RQF_FLUSH_SEQ)) { - unsigned long duration; const int sgrp = op_stat_group(req_op(req)); struct hd_struct *part; int cpu; - duration = nsecs_to_jiffies(now - req->start_time_ns); cpu = part_stat_lock(); part = req->part; part_stat_inc(cpu, part, ios[sgrp]); - part_stat_add(cpu, part, ticks[sgrp], duration); + part_stat_add(cpu, part, nsecs[sgrp], now - req->start_time_ns); part_round_stats(req->q, cpu, part); part_dec_in_flight(req->q, part, rq_data_dir(req)); diff --git a/block/genhd.c b/block/genhd.c index 8cc719a37b32..be5bab20b2ab 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -1343,18 +1343,18 @@ static int diskstats_show(struct seq_file *seqf, void *v) part_stat_read(hd, ios[STAT_READ]), part_stat_read(hd, merges[STAT_READ]), part_stat_read(hd, sectors[STAT_READ]), - jiffies_to_msecs(part_stat_read(hd, ticks[STAT_READ])), + (unsigned int)part_stat_read_msecs(hd, STAT_READ), part_stat_read(hd, ios[STAT_WRITE]), part_stat_read(hd, merges[STAT_WRITE]), part_stat_read(hd, sectors[STAT_WRITE]), - jiffies_to_msecs(part_stat_read(hd, ticks[STAT_WRITE])), + (unsigned int)part_stat_read_msecs(hd, STAT_WRITE), inflight[0], jiffies_to_msecs(part_stat_read(hd, io_ticks)), jiffies_to_msecs(part_stat_read(hd, time_in_queue)), part_stat_read(hd, ios[STAT_DISCARD]), part_stat_read(hd, merges[STAT_DISCARD]), part_stat_read(hd, sectors[STAT_DISCARD]), - jiffies_to_msecs(part_stat_read(hd, ticks[STAT_DISCARD])) + (unsigned int)part_stat_read_msecs(hd, STAT_DISCARD) ); } disk_part_iter_exit(&piter); diff --git a/block/partition-generic.c b/block/partition-generic.c index 5a8975a1201c..d3d14e81fb12 100644 --- a/block/partition-generic.c +++ b/block/partition-generic.c @@ -136,18 +136,18 @@ ssize_t part_stat_show(struct device *dev, part_stat_read(p, ios[STAT_READ]), part_stat_read(p, merges[STAT_READ]), (unsigned long long)part_stat_read(p, sectors[STAT_READ]), - jiffies_to_msecs(part_stat_read(p, ticks[STAT_READ])), + (unsigned int)part_stat_read_msecs(p, STAT_READ), part_stat_read(p, ios[STAT_WRITE]), part_stat_read(p, merges[STAT_WRITE]), (unsigned long long)part_stat_read(p, sectors[STAT_WRITE]), - jiffies_to_msecs(part_stat_read(p, ticks[STAT_WRITE])), + (unsigned int)part_stat_read_msecs(p, STAT_WRITE), inflight[0], jiffies_to_msecs(part_stat_read(p, io_ticks)), jiffies_to_msecs(part_stat_read(p, time_in_queue)), part_stat_read(p, ios[STAT_DISCARD]), part_stat_read(p, merges[STAT_DISCARD]), (unsigned long long)part_stat_read(p, sectors[STAT_DISCARD]), - jiffies_to_msecs(part_stat_read(p, ticks[STAT_DISCARD]))); + (unsigned int)part_stat_read_msecs(p, STAT_DISCARD)); } ssize_t part_inflight_show(struct device *dev, struct device_attribute *attr, diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 57864422a2c8..25c08c6c7f99 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -83,10 +83,10 @@ struct partition { } __attribute__((packed)); struct disk_stats { + u64 nsecs[NR_STAT_GROUPS]; unsigned long sectors[NR_STAT_GROUPS]; unsigned long ios[NR_STAT_GROUPS]; unsigned long merges[NR_STAT_GROUPS]; - unsigned long ticks[NR_STAT_GROUPS]; unsigned long io_ticks; unsigned long time_in_queue; }; @@ -354,6 +354,9 @@ static inline void free_part_stats(struct hd_struct *part) #endif /* CONFIG_SMP */ +#define part_stat_read_msecs(part, which) \ + div_u64(part_stat_read(part, nsecs[which]), NSEC_PER_MSEC) + #define part_stat_read_accum(part, field) \ (part_stat_read(part, field[STAT_READ]) + \ part_stat_read(part, field[STAT_WRITE]) + \ From 8360ed6745df6de2d8ddff8e2116789258fe5890 Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Fri, 21 Sep 2018 11:04:51 -0700 Subject: [PATCH 1255/1762] RDS: IB: Use DEFINE_PER_CPU_SHARED_ALIGNED for rds_ib_stats Clang warns when two declarations' section attributes don't match. net/rds/ib_stats.c:40:1: warning: section does not match previous declaration [-Wsection] DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_ib_statistics, rds_ib_stats); ^ ./include/linux/percpu-defs.h:142:2: note: expanded from macro 'DEFINE_PER_CPU_SHARED_ALIGNED' DEFINE_PER_CPU_SECTION(type, name, PER_CPU_SHARED_ALIGNED_SECTION) \ ^ ./include/linux/percpu-defs.h:93:9: note: expanded from macro 'DEFINE_PER_CPU_SECTION' extern __PCPU_ATTRS(sec) __typeof__(type) name; \ ^ ./include/linux/percpu-defs.h:49:26: note: expanded from macro '__PCPU_ATTRS' __percpu __attribute__((section(PER_CPU_BASE_SECTION sec))) \ ^ net/rds/ib.h:446:1: note: previous attribute is here DECLARE_PER_CPU(struct rds_ib_statistics, rds_ib_stats); ^ ./include/linux/percpu-defs.h:111:2: note: expanded from macro 'DECLARE_PER_CPU' DECLARE_PER_CPU_SECTION(type, name, "") ^ ./include/linux/percpu-defs.h:87:9: note: expanded from macro 'DECLARE_PER_CPU_SECTION' extern __PCPU_ATTRS(sec) __typeof__(type) name ^ ./include/linux/percpu-defs.h:49:26: note: expanded from macro '__PCPU_ATTRS' __percpu __attribute__((section(PER_CPU_BASE_SECTION sec))) \ ^ 1 warning generated. The initial definition was added in commit ec16227e1414 ("RDS/IB: Infiniband transport") and the cache aligned definition was added in commit e6babe4cc4ce ("RDS/IB: Stats and sysctls") right after. The definition probably should have been updated in net/rds/ib.h, which is what this patch does. Link: https://github.com/ClangBuiltLinux/linux/issues/114 Signed-off-by: Nathan Chancellor Acked-by: Santosh Shilimkar Signed-off-by: David S. Miller --- net/rds/ib.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/rds/ib.h b/net/rds/ib.h index 73427ff439f9..fd483760c910 100644 --- a/net/rds/ib.h +++ b/net/rds/ib.h @@ -443,7 +443,7 @@ int rds_ib_send_grab_credits(struct rds_ib_connection *ic, u32 wanted, int rds_ib_xmit_atomic(struct rds_connection *conn, struct rm_atomic_op *op); /* ib_stats.c */ -DECLARE_PER_CPU(struct rds_ib_statistics, rds_ib_stats); +DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_ib_statistics, rds_ib_stats); #define rds_ib_stats_inc(member) rds_stats_inc_which(rds_ib_stats, member) #define rds_ib_stats_add(member, count) \ rds_stats_add_which(rds_ib_stats, member, count) From 41c9b1be335b5afc3b5fb71c5d16f9d5939cd13f Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Mon, 10 Sep 2018 16:18:29 -0700 Subject: [PATCH 1256/1762] device-dax: Add missing address_space_operations With address_space_operations missing for device dax, namely the .set_page_dirty, we hit a kernel warning when running destructive ndctl unit test: make TESTS=device-dax check WARNING: CPU: 3 PID: 7380 at fs/buffer.c:581 __set_page_dirty+0xb1/0xc0 Setting address_space_operations to noop_set_page_dirty and noop_invalidatepage for device dax to prevent fallback to __set_page_dirty_buffers() and block_invalidatepage() respectively. Fixes: 2232c6382a ("device-dax: Enable page_mapping()") Acked-by: Jeff Moyer Reported-by: Vishal Verma Signed-off-by: Dave Jiang Signed-off-by: Dan Williams --- drivers/dax/device.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/dax/device.c b/drivers/dax/device.c index bbe4d72ca105..948806e57cee 100644 --- a/drivers/dax/device.c +++ b/drivers/dax/device.c @@ -535,6 +535,11 @@ static unsigned long dax_get_unmapped_area(struct file *filp, return current->mm->get_unmapped_area(filp, addr, len, pgoff, flags); } +static const struct address_space_operations dev_dax_aops = { + .set_page_dirty = noop_set_page_dirty, + .invalidatepage = noop_invalidatepage, +}; + static int dax_open(struct inode *inode, struct file *filp) { struct dax_device *dax_dev = inode_dax(inode); @@ -544,6 +549,7 @@ static int dax_open(struct inode *inode, struct file *filp) dev_dbg(&dev_dax->dev, "trace\n"); inode->i_mapping = __dax_inode->i_mapping; inode->i_mapping->host = __dax_inode; + inode->i_mapping->a_ops = &dev_dax_aops; filp->f_mapping = inode->i_mapping; filp->f_wb_err = filemap_sample_wb_err(filp->f_mapping); filp->private_data = dev_dax; From 474ff2600889e16280dbc6ada8bfecb216169a70 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Maciej=20=C5=BBenczykowski?= Date: Sat, 22 Sep 2018 01:34:01 -0700 Subject: [PATCH 1257/1762] net-ethtool: ETHTOOL_GUFO did not and should not require CAP_NET_ADMIN MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit So it should not fail with EPERM even though it is no longer implemented... This is a fix for: (userns)$ egrep ^Cap /proc/self/status CapInh: 0000003fffffffff CapPrm: 0000003fffffffff CapEff: 0000003fffffffff CapBnd: 0000003fffffffff CapAmb: 0000003fffffffff (userns)$ tcpdump -i usb_rndis0 tcpdump: WARNING: usb_rndis0: SIOCETHTOOL(ETHTOOL_GUFO) ioctl failed: Operation not permitted Warning: Kernel filter failed: Bad file descriptor tcpdump: can't remove kernel filter: Bad file descriptor With this change it returns EOPNOTSUPP instead of EPERM. See also https://github.com/the-tcpdump-group/libpcap/issues/689 Fixes: 08a00fea6de2 "net: Remove references to NETIF_F_UFO from ethtool." Cc: David S. Miller Signed-off-by: Maciej Żenczykowski Signed-off-by: David S. Miller --- net/core/ethtool.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/core/ethtool.c b/net/core/ethtool.c index c9993c6c2fd4..234a0ec2e932 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -2624,6 +2624,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr) case ETHTOOL_GPHYSTATS: case ETHTOOL_GTSO: case ETHTOOL_GPERMADDR: + case ETHTOOL_GUFO: case ETHTOOL_GGSO: case ETHTOOL_GGRO: case ETHTOOL_GFLAGS: From a4986b08287e0868fad6dd1b6e8ed840b2f1003f Mon Sep 17 00:00:00 2001 From: Antoine Tenart Date: Wed, 19 Sep 2018 08:58:02 +0200 Subject: [PATCH 1258/1762] MAINTAINERS: update the Annapurna Labs maintainer email Free Electrons became Bootlin. Update my email accordingly. Signed-off-by: Antoine Tenart Signed-off-by: Olof Johansson --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index a5b256b25905..d8f42ec6d1c0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1251,7 +1251,7 @@ N: meson ARM/Annapurna Labs ALPINE ARCHITECTURE M: Tsahee Zidenberg -M: Antoine Tenart +M: Antoine Tenart L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained F: arch/arm/mach-alpine/ From 6bf4ca7fbc85d80446ac01c0d1d77db4d91a6d84 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sun, 23 Sep 2018 19:15:18 +0200 Subject: [PATCH 1259/1762] Linux 4.19-rc5 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index f03a1e062503..0c90c4354979 100644 --- a/Makefile +++ b/Makefile @@ -2,7 +2,7 @@ VERSION = 4 PATCHLEVEL = 19 SUBLEVEL = 0 -EXTRAVERSION = -rc4 +EXTRAVERSION = -rc5 NAME = Merciless Moray # *DOCUMENTATION* From 16fdf8ba98391650ce4bc4f3f71629d8a413bc21 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 23 Sep 2018 12:25:15 -0700 Subject: [PATCH 1260/1762] rds: Fix build regression. Use DECLARE_* not DEFINE_* Fixes: 8360ed6745df ("RDS: IB: Use DEFINE_PER_CPU_SHARED_ALIGNED for rds_ib_stats") Signed-off-by: David S. Miller --- net/rds/ib.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/rds/ib.h b/net/rds/ib.h index fd483760c910..71ff356ee702 100644 --- a/net/rds/ib.h +++ b/net/rds/ib.h @@ -443,7 +443,7 @@ int rds_ib_send_grab_credits(struct rds_ib_connection *ic, u32 wanted, int rds_ib_xmit_atomic(struct rds_connection *conn, struct rm_atomic_op *op); /* ib_stats.c */ -DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_ib_statistics, rds_ib_stats); +DECLARE_PER_CPU_SHARED_ALIGNED(struct rds_ib_statistics, rds_ib_stats); #define rds_ib_stats_inc(member) rds_stats_inc_which(rds_ib_stats, member) #define rds_ib_stats_add(member, count) \ rds_stats_add_which(rds_ib_stats, member, count) From 4451d3f59f2a6f95e5d205c2d04ea072955d080d Mon Sep 17 00:00:00 2001 From: Tao Ren Date: Wed, 19 Sep 2018 15:13:31 -0700 Subject: [PATCH 1261/1762] clocksource/drivers/fttmr010: Fix set_next_event handler Currently, the aspeed MATCH1 register is updated to in set_next_event handler, with the assumption that COUNT register value is preserved when the timer is disabled and it continues decrementing after the timer is enabled. But the assumption is wrong: RELOAD register is loaded into COUNT register when the aspeed timer is enabled, which means the next event may be delayed because timer interrupt won't be generated until <0xFFFFFFFF - current_count + cycles>. The problem can be fixed by updating RELOAD register to , and COUNT register will be re-loaded when the timer is enabled and interrupt is generated when COUNT register overflows. The test result on Facebook Backpack-CMM BMC hardware (AST2500) shows the issue is fixed: without the patch, usleep(100) suspends the process for several milliseconds (and sometimes even over 40 milliseconds); after applying the fix, usleep(100) takes averagely 240 microseconds to return under the same workload level. Signed-off-by: Tao Ren Reviewed-by: Linus Walleij Tested-by: Lei YU Signed-off-by: Daniel Lezcano --- drivers/clocksource/timer-fttmr010.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/drivers/clocksource/timer-fttmr010.c b/drivers/clocksource/timer-fttmr010.c index c020038ebfab..cf93f6419b51 100644 --- a/drivers/clocksource/timer-fttmr010.c +++ b/drivers/clocksource/timer-fttmr010.c @@ -130,13 +130,17 @@ static int fttmr010_timer_set_next_event(unsigned long cycles, cr &= ~fttmr010->t1_enable_val; writel(cr, fttmr010->base + TIMER_CR); - /* Setup the match register forward/backward in time */ - cr = readl(fttmr010->base + TIMER1_COUNT); - if (fttmr010->count_down) - cr -= cycles; - else - cr += cycles; - writel(cr, fttmr010->base + TIMER1_MATCH1); + if (fttmr010->count_down) { + /* + * ASPEED Timer Controller will load TIMER1_LOAD register + * into TIMER1_COUNT register when the timer is re-enabled. + */ + writel(cycles, fttmr010->base + TIMER1_LOAD); + } else { + /* Setup the match register forward in time */ + cr = readl(fttmr010->base + TIMER1_COUNT); + writel(cr + cycles, fttmr010->base + TIMER1_MATCH1); + } /* Start */ cr = readl(fttmr010->base + TIMER_CR); From ac3d9dd034e565df2c034ab2ca71f0a9f69153c1 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:38 -0700 Subject: [PATCH 1262/1762] netpoll: make ndo_poll_controller() optional As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. It seems that all networking drivers that do use NAPI for their TX completions, should not provide a ndo_poll_controller(). NAPI drivers have netpoll support already handled in core networking stack, since netpoll_poll_dev() uses poll_napi(dev) to iterate through registered NAPI contexts for a device. This patch allows netpoll_poll_dev() to process NAPI contexts even for drivers not providing ndo_poll_controller(), allowing for following patches in NAPI drivers. Also we export netpoll_poll_dev() so that it can be called by bonding/team drivers in following patches. Reported-by: Song Liu Signed-off-by: Eric Dumazet Tested-by: Song Liu Signed-off-by: David S. Miller --- include/linux/netpoll.h | 5 +++-- net/core/netpoll.c | 19 +++++++------------ 2 files changed, 10 insertions(+), 14 deletions(-) diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h index 67662d01130a..3ef82d3a78db 100644 --- a/include/linux/netpoll.h +++ b/include/linux/netpoll.h @@ -49,8 +49,9 @@ struct netpoll_info { }; #ifdef CONFIG_NETPOLL -extern void netpoll_poll_disable(struct net_device *dev); -extern void netpoll_poll_enable(struct net_device *dev); +void netpoll_poll_dev(struct net_device *dev); +void netpoll_poll_disable(struct net_device *dev); +void netpoll_poll_enable(struct net_device *dev); #else static inline void netpoll_poll_disable(struct net_device *dev) { return; } static inline void netpoll_poll_enable(struct net_device *dev) { return; } diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 57557a6a950c..3219a2932463 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -187,16 +187,16 @@ static void poll_napi(struct net_device *dev) } } -static void netpoll_poll_dev(struct net_device *dev) +void netpoll_poll_dev(struct net_device *dev) { - const struct net_device_ops *ops; struct netpoll_info *ni = rcu_dereference_bh(dev->npinfo); + const struct net_device_ops *ops; /* Don't do any rx activity if the dev_lock mutex is held * the dev_open/close paths use this to block netpoll activity * while changing device state */ - if (down_trylock(&ni->dev_lock)) + if (!ni || down_trylock(&ni->dev_lock)) return; if (!netif_running(dev)) { @@ -205,13 +205,8 @@ static void netpoll_poll_dev(struct net_device *dev) } ops = dev->netdev_ops; - if (!ops->ndo_poll_controller) { - up(&ni->dev_lock); - return; - } - - /* Process pending work on NIC */ - ops->ndo_poll_controller(dev); + if (ops->ndo_poll_controller) + ops->ndo_poll_controller(dev); poll_napi(dev); @@ -219,6 +214,7 @@ static void netpoll_poll_dev(struct net_device *dev) zap_completion_queue(); } +EXPORT_SYMBOL(netpoll_poll_dev); void netpoll_poll_disable(struct net_device *dev) { @@ -613,8 +609,7 @@ int __netpoll_setup(struct netpoll *np, struct net_device *ndev) strlcpy(np->dev_name, ndev->name, IFNAMSIZ); INIT_WORK(&np->cleanup_work, netpoll_async_cleanup); - if ((ndev->priv_flags & IFF_DISABLE_NETPOLL) || - !ndev->netdev_ops->ndo_poll_controller) { + if (ndev->priv_flags & IFF_DISABLE_NETPOLL) { np_err(np, "%s doesn't support polling, aborting\n", np->dev_name); err = -ENOTSUPP; From 93f62ad5e83a13e0c224dfca5ef40f90c09aad51 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:39 -0700 Subject: [PATCH 1263/1762] bonding: use netpoll_poll_dev() helper We want to allow NAPI drivers to no longer provide ndo_poll_controller() method, as it has been proven problematic. team driver must not look at its presence, but instead call netpoll_poll_dev() which factorize the needed actions. Signed-off-by: Eric Dumazet Cc: Jay Vosburgh Cc: Veaceslav Falico Cc: Andy Gospodarek Acked-by: Jay Vosburgh Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index a764a83f99da..0d87e11e7f1d 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -971,16 +971,13 @@ static void bond_poll_controller(struct net_device *bond_dev) struct slave *slave = NULL; struct list_head *iter; struct ad_info ad_info; - struct netpoll_info *ni; - const struct net_device_ops *ops; if (BOND_MODE(bond) == BOND_MODE_8023AD) if (bond_3ad_get_active_agg_info(bond, &ad_info)) return; bond_for_each_slave_rcu(bond, slave, iter) { - ops = slave->dev->netdev_ops; - if (!bond_slave_is_up(slave) || !ops->ndo_poll_controller) + if (!bond_slave_is_up(slave)) continue; if (BOND_MODE(bond) == BOND_MODE_8023AD) { @@ -992,11 +989,7 @@ static void bond_poll_controller(struct net_device *bond_dev) continue; } - ni = rcu_dereference_bh(slave->dev->npinfo); - if (down_trylock(&ni->dev_lock)) - continue; - ops->ndo_poll_controller(slave->dev); - up(&ni->dev_lock); + netpoll_poll_dev(slave->dev); } } From b80e71a986c2ab5677dc6b84923cd7030b690800 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:40 -0700 Subject: [PATCH 1264/1762] ixgbe: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. ixgbe uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Reported-by: Song Liu Signed-off-by: Eric Dumazet Tested-by: Song Liu Cc: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 25 ------------------- 1 file changed, 25 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 9a23d33a47ed..f27d73a7bf16 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -8768,28 +8768,6 @@ static int ixgbe_del_sanmac_netdev(struct net_device *dev) return err; } -#ifdef CONFIG_NET_POLL_CONTROLLER -/* - * Polling 'interrupt' - used by things like netconsole to send skbs - * without having to re-enable interrupts. It's not called while - * the interrupt routine is executing. - */ -static void ixgbe_netpoll(struct net_device *netdev) -{ - struct ixgbe_adapter *adapter = netdev_priv(netdev); - int i; - - /* if interface is down do nothing */ - if (test_bit(__IXGBE_DOWN, &adapter->state)) - return; - - /* loop through and schedule all active queues */ - for (i = 0; i < adapter->num_q_vectors; i++) - ixgbe_msix_clean_rings(0, adapter->q_vector[i]); -} - -#endif - static void ixgbe_get_ring_stats64(struct rtnl_link_stats64 *stats, struct ixgbe_ring *ring) { @@ -10251,9 +10229,6 @@ static const struct net_device_ops ixgbe_netdev_ops = { .ndo_get_vf_config = ixgbe_ndo_get_vf_config, .ndo_get_stats64 = ixgbe_get_stats64, .ndo_setup_tc = __ixgbe_setup_tc, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ixgbe_netpoll, -#endif #ifdef IXGBE_FCOE .ndo_select_queue = ixgbe_select_queue, .ndo_fcoe_ddp_setup = ixgbe_fcoe_ddp_get, From 6f5d941ebadeb1150530f205af0eb5cf5bfeb219 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:41 -0700 Subject: [PATCH 1265/1762] ixgbevf: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. ixgbevf uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Jeff Kirsher Signed-off-by: David S. Miller --- .../net/ethernet/intel/ixgbevf/ixgbevf_main.c | 21 ------------------- 1 file changed, 21 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index d86446d202d5..5a228582423b 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -4233,24 +4233,6 @@ static int ixgbevf_change_mtu(struct net_device *netdev, int new_mtu) return 0; } -#ifdef CONFIG_NET_POLL_CONTROLLER -/* Polling 'interrupt' - used by things like netconsole to send skbs - * without having to re-enable interrupts. It's not called while - * the interrupt routine is executing. - */ -static void ixgbevf_netpoll(struct net_device *netdev) -{ - struct ixgbevf_adapter *adapter = netdev_priv(netdev); - int i; - - /* if interface is down do nothing */ - if (test_bit(__IXGBEVF_DOWN, &adapter->state)) - return; - for (i = 0; i < adapter->num_rx_queues; i++) - ixgbevf_msix_clean_rings(0, adapter->q_vector[i]); -} -#endif /* CONFIG_NET_POLL_CONTROLLER */ - static int ixgbevf_suspend(struct pci_dev *pdev, pm_message_t state) { struct net_device *netdev = pci_get_drvdata(pdev); @@ -4482,9 +4464,6 @@ static const struct net_device_ops ixgbevf_netdev_ops = { .ndo_tx_timeout = ixgbevf_tx_timeout, .ndo_vlan_rx_add_vid = ixgbevf_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = ixgbevf_vlan_rx_kill_vid, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ixgbevf_netpoll, -#endif .ndo_features_check = ixgbevf_features_check, .ndo_bpf = ixgbevf_xdp, }; From dda9d57e2d4245c0d8e309ee7399bf2ebfca64ae Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:42 -0700 Subject: [PATCH 1266/1762] fm10k: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture lasts for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. fm10k uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/fm10k/fm10k.h | 3 --- .../net/ethernet/intel/fm10k/fm10k_netdev.c | 3 --- drivers/net/ethernet/intel/fm10k/fm10k_pci.c | 22 ------------------- 3 files changed, 28 deletions(-) diff --git a/drivers/net/ethernet/intel/fm10k/fm10k.h b/drivers/net/ethernet/intel/fm10k/fm10k.h index a903a0ba45e1..7d42582ed48d 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k.h +++ b/drivers/net/ethernet/intel/fm10k/fm10k.h @@ -504,9 +504,6 @@ void fm10k_update_stats(struct fm10k_intfc *interface); void fm10k_service_event_schedule(struct fm10k_intfc *interface); void fm10k_macvlan_schedule(struct fm10k_intfc *interface); void fm10k_update_rx_drop_en(struct fm10k_intfc *interface); -#ifdef CONFIG_NET_POLL_CONTROLLER -void fm10k_netpoll(struct net_device *netdev); -#endif /* Netdev */ struct net_device *fm10k_alloc_netdev(const struct fm10k_info *info); diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c index 929f538d28bc..538a8467f434 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c @@ -1648,9 +1648,6 @@ static const struct net_device_ops fm10k_netdev_ops = { .ndo_udp_tunnel_del = fm10k_udp_tunnel_del, .ndo_dfwd_add_station = fm10k_dfwd_add_station, .ndo_dfwd_del_station = fm10k_dfwd_del_station, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = fm10k_netpoll, -#endif .ndo_features_check = fm10k_features_check, }; diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c index 15071e4adb98..c859ababeed5 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c @@ -1210,28 +1210,6 @@ static irqreturn_t fm10k_msix_mbx_vf(int __always_unused irq, void *data) return IRQ_HANDLED; } -#ifdef CONFIG_NET_POLL_CONTROLLER -/** - * fm10k_netpoll - A Polling 'interrupt' handler - * @netdev: network interface device structure - * - * This is used by netconsole to send skbs without having to re-enable - * interrupts. It's not called while the normal interrupt routine is executing. - **/ -void fm10k_netpoll(struct net_device *netdev) -{ - struct fm10k_intfc *interface = netdev_priv(netdev); - int i; - - /* if interface is down do nothing */ - if (test_bit(__FM10K_DOWN, interface->state)) - return; - - for (i = 0; i < interface->num_q_vectors; i++) - fm10k_msix_clean_rings(0, interface->q_vector[i]); -} - -#endif #define FM10K_ERR_MSG(type) case (type): error = #type; break static void fm10k_handle_fault(struct fm10k_intfc *interface, int type, struct fm10k_fault *fault) From 2753166e4be9df4677745a7f7d9d8daa94938a08 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:43 -0700 Subject: [PATCH 1267/1762] ixgb: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. ixgb uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. This also removes a problematic use of disable_irq() in a context it is forbidden, as explained in commit af3e0fcf7887 ("8139too: Use disable_irq_nosync() in rtl8139_poll_controller()") Signed-off-by: Eric Dumazet Cc: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/ixgb/ixgb_main.c | 25 --------------------- 1 file changed, 25 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c index d3e72d0f66ef..7722153c4ac2 100644 --- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c +++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c @@ -81,11 +81,6 @@ static int ixgb_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid); static void ixgb_restore_vlan(struct ixgb_adapter *adapter); -#ifdef CONFIG_NET_POLL_CONTROLLER -/* for netdump / net console */ -static void ixgb_netpoll(struct net_device *dev); -#endif - static pci_ers_result_t ixgb_io_error_detected (struct pci_dev *pdev, enum pci_channel_state state); static pci_ers_result_t ixgb_io_slot_reset (struct pci_dev *pdev); @@ -348,9 +343,6 @@ static const struct net_device_ops ixgb_netdev_ops = { .ndo_tx_timeout = ixgb_tx_timeout, .ndo_vlan_rx_add_vid = ixgb_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = ixgb_vlan_rx_kill_vid, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ixgb_netpoll, -#endif .ndo_fix_features = ixgb_fix_features, .ndo_set_features = ixgb_set_features, }; @@ -2195,23 +2187,6 @@ ixgb_restore_vlan(struct ixgb_adapter *adapter) ixgb_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), vid); } -#ifdef CONFIG_NET_POLL_CONTROLLER -/* - * Polling 'interrupt' - used by things like netconsole to send skbs - * without having to re-enable interrupts. It's not called while - * the interrupt routine is executing. - */ - -static void ixgb_netpoll(struct net_device *dev) -{ - struct ixgb_adapter *adapter = netdev_priv(dev); - - disable_irq(adapter->pdev->irq); - ixgb_intr(adapter->pdev->irq, dev); - enable_irq(adapter->pdev->irq); -} -#endif - /** * ixgb_io_error_detected - called when PCI error is detected * @pdev: pointer to pci device with error From 0542997edece2d75e0bf3e173dfddf1b2b3ef756 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:44 -0700 Subject: [PATCH 1268/1762] igb: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. igb uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/igb/igb_main.c | 30 ----------------------- 1 file changed, 30 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index a32c576c1e65..0796cef96fa3 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -205,10 +205,6 @@ static struct notifier_block dca_notifier = { .priority = 0 }; #endif -#ifdef CONFIG_NET_POLL_CONTROLLER -/* for netdump / net console */ -static void igb_netpoll(struct net_device *); -#endif #ifdef CONFIG_PCI_IOV static unsigned int max_vfs; module_param(max_vfs, uint, 0); @@ -2881,9 +2877,6 @@ static const struct net_device_ops igb_netdev_ops = { .ndo_set_vf_spoofchk = igb_ndo_set_vf_spoofchk, .ndo_set_vf_trust = igb_ndo_set_vf_trust, .ndo_get_vf_config = igb_ndo_get_vf_config, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = igb_netpoll, -#endif .ndo_fix_features = igb_fix_features, .ndo_set_features = igb_set_features, .ndo_fdb_add = igb_ndo_fdb_add, @@ -9053,29 +9046,6 @@ static int igb_pci_sriov_configure(struct pci_dev *dev, int num_vfs) return 0; } -#ifdef CONFIG_NET_POLL_CONTROLLER -/* Polling 'interrupt' - used by things like netconsole to send skbs - * without having to re-enable interrupts. It's not called while - * the interrupt routine is executing. - */ -static void igb_netpoll(struct net_device *netdev) -{ - struct igb_adapter *adapter = netdev_priv(netdev); - struct e1000_hw *hw = &adapter->hw; - struct igb_q_vector *q_vector; - int i; - - for (i = 0; i < adapter->num_q_vectors; i++) { - q_vector = adapter->q_vector[i]; - if (adapter->flags & IGB_FLAG_HAS_MSIX) - wr32(E1000_EIMC, q_vector->eims_value); - else - igb_irq_disable(adapter); - napi_schedule(&q_vector->napi); - } -} -#endif /* CONFIG_NET_POLL_CONTROLLER */ - /** * igb_io_error_detected - called when PCI error is detected * @pdev: Pointer to PCI device From 158a08a694c4ecf9574fe452db24a6b4943853aa Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:45 -0700 Subject: [PATCH 1269/1762] ice: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. ice uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/ice/ice_main.c | 27 ----------------------- 1 file changed, 27 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index f1e80eed2fd6..3f047bb43348 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -4806,30 +4806,6 @@ void ice_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats) stats->rx_length_errors = vsi_stats->rx_length_errors; } -#ifdef CONFIG_NET_POLL_CONTROLLER -/** - * ice_netpoll - polling "interrupt" handler - * @netdev: network interface device structure - * - * Used by netconsole to send skbs without having to re-enable interrupts. - * This is not called in the normal interrupt path. - */ -static void ice_netpoll(struct net_device *netdev) -{ - struct ice_netdev_priv *np = netdev_priv(netdev); - struct ice_vsi *vsi = np->vsi; - struct ice_pf *pf = vsi->back; - int i; - - if (test_bit(__ICE_DOWN, vsi->state) || - !test_bit(ICE_FLAG_MSIX_ENA, pf->flags)) - return; - - for (i = 0; i < vsi->num_q_vectors; i++) - ice_msix_clean_rings(0, vsi->q_vectors[i]); -} -#endif /* CONFIG_NET_POLL_CONTROLLER */ - /** * ice_napi_disable_all - Disable NAPI for all q_vectors in the VSI * @vsi: VSI having NAPI disabled @@ -5497,9 +5473,6 @@ static const struct net_device_ops ice_netdev_ops = { .ndo_validate_addr = eth_validate_addr, .ndo_change_mtu = ice_change_mtu, .ndo_get_stats64 = ice_get_stats64, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ice_netpoll, -#endif /* CONFIG_NET_POLL_CONTROLLER */ .ndo_vlan_rx_add_vid = ice_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = ice_vlan_rx_kill_vid, .ndo_set_features = ice_set_features, From 1aa28fb98368078bcaf527bf46c0e001db934414 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:46 -0700 Subject: [PATCH 1270/1762] i40evf: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. i40evf uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Jeff Kirsher Signed-off-by: David S. Miller --- .../net/ethernet/intel/i40evf/i40evf_main.c | 26 ------------------- 1 file changed, 26 deletions(-) diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c index 5906c1c1d19d..fef6d892ed4c 100644 --- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c +++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c @@ -396,29 +396,6 @@ static void i40evf_map_rings_to_vectors(struct i40evf_adapter *adapter) adapter->aq_required |= I40EVF_FLAG_AQ_MAP_VECTORS; } -#ifdef CONFIG_NET_POLL_CONTROLLER -/** - * i40evf_netpoll - A Polling 'interrupt' handler - * @netdev: network interface device structure - * - * This is used by netconsole to send skbs without having to re-enable - * interrupts. It's not called while the normal interrupt routine is executing. - **/ -static void i40evf_netpoll(struct net_device *netdev) -{ - struct i40evf_adapter *adapter = netdev_priv(netdev); - int q_vectors = adapter->num_msix_vectors - NONQ_VECS; - int i; - - /* if interface is down do nothing */ - if (test_bit(__I40E_VSI_DOWN, adapter->vsi.state)) - return; - - for (i = 0; i < q_vectors; i++) - i40evf_msix_clean_rings(0, &adapter->q_vectors[i]); -} - -#endif /** * i40evf_irq_affinity_notify - Callback for affinity changes * @notify: context as to what irq was changed @@ -3229,9 +3206,6 @@ static const struct net_device_ops i40evf_netdev_ops = { .ndo_features_check = i40evf_features_check, .ndo_fix_features = i40evf_fix_features, .ndo_set_features = i40evf_set_features, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = i40evf_netpoll, -#endif .ndo_setup_tc = i40evf_setup_tc, }; From a24b66c249f71dde11da5ba3b4c397a42ece3fc9 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:47 -0700 Subject: [PATCH 1271/1762] mlx4: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. mlx4 uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Tariq Toukan Signed-off-by: David S. Miller --- .../net/ethernet/mellanox/mlx4/en_netdev.c | 20 ------------------- 1 file changed, 20 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 6785661d1a72..fe49384eba48 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -1286,20 +1286,6 @@ out: mutex_unlock(&mdev->state_lock); } -#ifdef CONFIG_NET_POLL_CONTROLLER -static void mlx4_en_netpoll(struct net_device *dev) -{ - struct mlx4_en_priv *priv = netdev_priv(dev); - struct mlx4_en_cq *cq; - int i; - - for (i = 0; i < priv->tx_ring_num[TX]; i++) { - cq = priv->tx_cq[TX][i]; - napi_schedule(&cq->napi); - } -} -#endif - static int mlx4_en_set_rss_steer_rules(struct mlx4_en_priv *priv) { u64 reg_id; @@ -2946,9 +2932,6 @@ static const struct net_device_ops mlx4_netdev_ops = { .ndo_tx_timeout = mlx4_en_tx_timeout, .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = mlx4_en_netpoll, -#endif .ndo_set_features = mlx4_en_set_features, .ndo_fix_features = mlx4_en_fix_features, .ndo_setup_tc = __mlx4_en_setup_tc, @@ -2983,9 +2966,6 @@ static const struct net_device_ops mlx4_netdev_ops_master = { .ndo_set_vf_link_state = mlx4_en_set_vf_link_state, .ndo_get_vf_stats = mlx4_en_get_vf_stats, .ndo_get_vf_config = mlx4_en_get_vf_config, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = mlx4_en_netpoll, -#endif .ndo_set_features = mlx4_en_set_features, .ndo_fix_features = mlx4_en_fix_features, .ndo_setup_tc = __mlx4_en_setup_tc, From 9c29bcd189f4ab1644b7125713602532d0aefdb7 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:48 -0700 Subject: [PATCH 1272/1762] mlx5: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. mlx5 uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Saeed Mahameed Signed-off-by: David S. Miller --- .../net/ethernet/mellanox/mlx5/core/en_main.c | 19 ------------------- 1 file changed, 19 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 5a7939e70190..54118b77dc1f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -4315,22 +4315,6 @@ static int mlx5e_xdp(struct net_device *dev, struct netdev_bpf *xdp) } } -#ifdef CONFIG_NET_POLL_CONTROLLER -/* Fake "interrupt" called by netpoll (eg netconsole) to send skbs without - * reenabling interrupts. - */ -static void mlx5e_netpoll(struct net_device *dev) -{ - struct mlx5e_priv *priv = netdev_priv(dev); - struct mlx5e_channels *chs = &priv->channels; - - int i; - - for (i = 0; i < chs->num; i++) - napi_schedule(&chs->c[i]->napi); -} -#endif - static const struct net_device_ops mlx5e_netdev_ops = { .ndo_open = mlx5e_open, .ndo_stop = mlx5e_close, @@ -4356,9 +4340,6 @@ static const struct net_device_ops mlx5e_netdev_ops = { #ifdef CONFIG_MLX5_EN_ARFS .ndo_rx_flow_steer = mlx5e_rx_flow_steer, #endif -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = mlx5e_netpoll, -#endif #ifdef CONFIG_MLX5_ESWITCH /* SRIOV E-Switch NDOs */ .ndo_set_vf_mac = mlx5e_set_vf_mac, From d8ea6a91ad70ae0881d76446df27d3f58fd478c3 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:49 -0700 Subject: [PATCH 1273/1762] bnx2x: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. bnx2x uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Ariel Elior Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 71362b7f6040..fcc2328bb0d9 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -12894,19 +12894,6 @@ static int bnx2x_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) } } -#ifdef CONFIG_NET_POLL_CONTROLLER -static void poll_bnx2x(struct net_device *dev) -{ - struct bnx2x *bp = netdev_priv(dev); - int i; - - for_each_eth_queue(bp, i) { - struct bnx2x_fastpath *fp = &bp->fp[i]; - napi_schedule(&bnx2x_fp(bp, fp->index, napi)); - } -} -#endif - static int bnx2x_validate_addr(struct net_device *dev) { struct bnx2x *bp = netdev_priv(dev); @@ -13113,9 +13100,6 @@ static const struct net_device_ops bnx2x_netdev_ops = { .ndo_tx_timeout = bnx2x_tx_timeout, .ndo_vlan_rx_add_vid = bnx2x_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = bnx2x_vlan_rx_kill_vid, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = poll_bnx2x, -#endif .ndo_setup_tc = __bnx2x_setup_tc, #ifdef CONFIG_BNX2X_SRIOV .ndo_set_vf_mac = bnx2x_set_vf_mac, From 58e0e22bff638055278ea73e34d0d07a95260790 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:50 -0700 Subject: [PATCH 1274/1762] bnxt: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. bnxt uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 18 ------------------ 1 file changed, 18 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 177587f9c3f1..61957b0bbd8c 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -7672,21 +7672,6 @@ static void bnxt_tx_timeout(struct net_device *dev) bnxt_queue_sp_work(bp); } -#ifdef CONFIG_NET_POLL_CONTROLLER -static void bnxt_poll_controller(struct net_device *dev) -{ - struct bnxt *bp = netdev_priv(dev); - int i; - - /* Only process tx rings/combined rings in netpoll mode. */ - for (i = 0; i < bp->tx_nr_rings; i++) { - struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; - - napi_schedule(&txr->bnapi->napi); - } -} -#endif - static void bnxt_timer(struct timer_list *t) { struct bnxt *bp = from_timer(bp, t, timer); @@ -8519,9 +8504,6 @@ static const struct net_device_ops bnxt_netdev_ops = { .ndo_set_vf_link_state = bnxt_set_vf_link_state, .ndo_set_vf_spoofchk = bnxt_set_vf_spoofchk, .ndo_set_vf_trust = bnxt_set_vf_trust, -#endif -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = bnxt_poll_controller, #endif .ndo_setup_tc = bnxt_setup_tc, #ifdef CONFIG_RFS_ACCEL From 0825ce70318e9c576acbdd5ceb4a8d563263cf8f Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:51 -0700 Subject: [PATCH 1275/1762] nfp: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. nfp uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Jakub Kicinski Acked-by: Jakub Kicinski Tested-by: Jakub Kicinski Signed-off-by: David S. Miller --- .../ethernet/netronome/nfp/nfp_net_common.c | 18 ------------------ 1 file changed, 18 deletions(-) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index 253bdaef1505..8ed38fd5a852 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -3146,21 +3146,6 @@ nfp_net_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid) return nfp_net_reconfig_mbox(nn, NFP_NET_CFG_MBOX_CMD_CTAG_FILTER_KILL); } -#ifdef CONFIG_NET_POLL_CONTROLLER -static void nfp_net_netpoll(struct net_device *netdev) -{ - struct nfp_net *nn = netdev_priv(netdev); - int i; - - /* nfp_net's NAPIs are statically allocated so even if there is a race - * with reconfig path this will simply try to schedule some disabled - * NAPI instances. - */ - for (i = 0; i < nn->dp.num_stack_tx_rings; i++) - napi_schedule_irqoff(&nn->r_vecs[i].napi); -} -#endif - static void nfp_net_stat64(struct net_device *netdev, struct rtnl_link_stats64 *stats) { @@ -3519,9 +3504,6 @@ const struct net_device_ops nfp_net_netdev_ops = { .ndo_get_stats64 = nfp_net_stat64, .ndo_vlan_rx_add_vid = nfp_net_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = nfp_net_vlan_rx_kill_vid, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = nfp_net_netpoll, -#endif .ndo_set_vf_mac = nfp_app_set_vf_mac, .ndo_set_vf_vlan = nfp_app_set_vf_vlan, .ndo_set_vf_spoofchk = nfp_app_set_vf_spoofchk, From 765cdc209cb89fb81215310a066cd0a3018ffef7 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 21 Sep 2018 15:27:52 -0700 Subject: [PATCH 1276/1762] tun: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. tun uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/tun.c | 43 ------------------------------------------- 1 file changed, 43 deletions(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index ebd07ad82431..e2648b5a3861 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1153,43 +1153,6 @@ static netdev_features_t tun_net_fix_features(struct net_device *dev, return (features & tun->set_features) | (features & ~TUN_USER_FEATURES); } -#ifdef CONFIG_NET_POLL_CONTROLLER -static void tun_poll_controller(struct net_device *dev) -{ - /* - * Tun only receives frames when: - * 1) the char device endpoint gets data from user space - * 2) the tun socket gets a sendmsg call from user space - * If NAPI is not enabled, since both of those are synchronous - * operations, we are guaranteed never to have pending data when we poll - * for it so there is nothing to do here but return. - * We need this though so netpoll recognizes us as an interface that - * supports polling, which enables bridge devices in virt setups to - * still use netconsole - * If NAPI is enabled, however, we need to schedule polling for all - * queues unless we are using napi_gro_frags(), which we call in - * process context and not in NAPI context. - */ - struct tun_struct *tun = netdev_priv(dev); - - if (tun->flags & IFF_NAPI) { - struct tun_file *tfile; - int i; - - if (tun_napi_frags_enabled(tun)) - return; - - rcu_read_lock(); - for (i = 0; i < tun->numqueues; i++) { - tfile = rcu_dereference(tun->tfiles[i]); - if (tfile->napi_enabled) - napi_schedule(&tfile->napi); - } - rcu_read_unlock(); - } - return; -} -#endif static void tun_set_headroom(struct net_device *dev, int new_hr) { @@ -1283,9 +1246,6 @@ static const struct net_device_ops tun_netdev_ops = { .ndo_start_xmit = tun_net_xmit, .ndo_fix_features = tun_net_fix_features, .ndo_select_queue = tun_select_queue, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = tun_poll_controller, -#endif .ndo_set_rx_headroom = tun_set_headroom, .ndo_get_stats64 = tun_net_get_stats64, }; @@ -1365,9 +1325,6 @@ static const struct net_device_ops tap_netdev_ops = { .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, .ndo_select_queue = tun_select_queue, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = tun_poll_controller, -#endif .ndo_features_check = passthru_features_check, .ndo_set_rx_headroom = tun_set_headroom, .ndo_get_stats64 = tun_net_get_stats64, From d26ed6b0e5e23190d43ab34bc69cbecdc464a2cf Mon Sep 17 00:00:00 2001 From: Friedemann Gerold Date: Sat, 15 Sep 2018 18:03:39 +0300 Subject: [PATCH 1277/1762] net: aquantia: memory corruption on jumbo frames This patch fixes skb_shared area, which will be corrupted upon reception of 4K jumbo packets. Originally build_skb usage purpose was to reuse page for skb to eliminate needs of extra fragments. But that logic does not take into account that skb_shared_info should be reserved at the end of skb data area. In case packet data consumes all the page (4K), skb_shinfo location overflows the page. As a consequence, __build_skb zeroed shinfo data above the allocated page, corrupting next page. The issue is rarely seen in real life because jumbo are normally larger than 4K and that causes another code path to trigger. But it 100% reproducible with simple scapy packet, like: sendp(IP(dst="192.168.100.3") / TCP(dport=443) \ / Raw(RandString(size=(4096-40))), iface="enp1s0") Fixes: 018423e90bee ("net: ethernet: aquantia: Add ring support code") Reported-by: Friedemann Gerold Reported-by: Michael Rauch Signed-off-by: Friedemann Gerold Tested-by: Nikita Danilov Signed-off-by: Igor Russkikh Signed-off-by: David S. Miller --- .../net/ethernet/aquantia/atlantic/aq_ring.c | 30 +++++++++++-------- 1 file changed, 17 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c index b5f1f62e8e25..d1e1a0ba8615 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c @@ -225,9 +225,10 @@ int aq_ring_rx_clean(struct aq_ring_s *self, } /* for single fragment packets use build_skb() */ - if (buff->is_eop) { + if (buff->is_eop && + buff->len <= AQ_CFG_RX_FRAME_MAX - AQ_SKB_ALIGN) { skb = build_skb(page_address(buff->page), - buff->len + AQ_SKB_ALIGN); + AQ_CFG_RX_FRAME_MAX); if (unlikely(!skb)) { err = -ENOMEM; goto err_exit; @@ -247,18 +248,21 @@ int aq_ring_rx_clean(struct aq_ring_s *self, buff->len - ETH_HLEN, SKB_TRUESIZE(buff->len - ETH_HLEN)); - for (i = 1U, next_ = buff->next, - buff_ = &self->buff_ring[next_]; true; - next_ = buff_->next, - buff_ = &self->buff_ring[next_], ++i) { - skb_add_rx_frag(skb, i, buff_->page, 0, - buff_->len, - SKB_TRUESIZE(buff->len - - ETH_HLEN)); - buff_->is_cleaned = 1; + if (!buff->is_eop) { + for (i = 1U, next_ = buff->next, + buff_ = &self->buff_ring[next_]; + true; next_ = buff_->next, + buff_ = &self->buff_ring[next_], ++i) { + skb_add_rx_frag(skb, i, + buff_->page, 0, + buff_->len, + SKB_TRUESIZE(buff->len - + ETH_HLEN)); + buff_->is_cleaned = 1; - if (buff_->is_eop) - break; + if (buff_->is_eop) + break; + } } } From 63e132528032ce937126aba591a7b37ec593a6bb Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Tue, 18 Sep 2018 16:34:31 +0300 Subject: [PATCH 1278/1762] ovl: fix memory leak on unlink of indexed file The memory leak was detected by kmemleak when running xfstests overlay/051,053 Fixes: caf70cb2ba5d ("ovl: cleanup orphan index entries") Cc: # v4.13 Signed-off-by: Amir Goldstein Signed-off-by: Miklos Szeredi --- fs/overlayfs/util.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c index 8cfb62cc8672..ace4fe4c39a9 100644 --- a/fs/overlayfs/util.c +++ b/fs/overlayfs/util.c @@ -683,7 +683,7 @@ static void ovl_cleanup_index(struct dentry *dentry) struct dentry *upperdentry = ovl_dentry_upper(dentry); struct dentry *index = NULL; struct inode *inode; - struct qstr name; + struct qstr name = { }; int err; err = ovl_get_index_name(lowerdentry, &name); @@ -726,6 +726,7 @@ static void ovl_cleanup_index(struct dentry *dentry) goto fail; out: + kfree(name.name); dput(index); return; From 898cc19d8af2d6a80a9f2804b0db2e83c5dd8863 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Tue, 18 Sep 2018 16:34:32 +0300 Subject: [PATCH 1279/1762] ovl: fix freeze protection bypass in ovl_write_iter() Tested by re-writing to an open overlayfs file while upper ext4 is frozen: xfs_io -f /ovl/x xfs_io> pwrite 0 4096 fsfreeze -f /ext4 xfs_io> pwrite 0 4096 WARNING: CPU: 0 PID: 1492 at fs/ext4/ext4_jbd2.c:53 \ ext4_journal_check_start+0x48/0x82 After the fix, the second write blocks in ovl_write_iter() and avoids hitting WARN_ON(sb->s_writers.frozen == SB_FREEZE_COMPLETE) in ext4_journal_check_start(). Fixes: 2a92e07edc5e ("ovl: add ovl_write_iter()") Signed-off-by: Amir Goldstein Signed-off-by: Miklos Szeredi --- fs/overlayfs/file.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c index aeaefd2a551b..986313da0c88 100644 --- a/fs/overlayfs/file.c +++ b/fs/overlayfs/file.c @@ -240,8 +240,10 @@ static ssize_t ovl_write_iter(struct kiocb *iocb, struct iov_iter *iter) goto out_unlock; old_cred = ovl_override_creds(file_inode(file)->i_sb); + file_start_write(real.file); ret = vfs_iter_write(real.file, iter, &iocb->ki_pos, ovl_iocb_to_rwf(iocb)); + file_end_write(real.file); revert_creds(old_cred); /* Update size */ From d9d150ae50675e3c1d68047aafb2e981be685d90 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Tue, 18 Sep 2018 16:34:33 +0300 Subject: [PATCH 1280/1762] ovl: fix freeze protection bypass in ovl_clone_file_range() Tested by doing clone on overlayfs while upper xfs+reflink is frozen: xfs_io -f /ovl/y fsfreeze -f /xfs xfs_io> reflink /ovl/x Before the fix xfs_io enters xfs_reflink_remap_range() and blocks in xfs_trans_alloc(). After the fix, xfs_io blocks outside xfs code in ovl_clone_file_range(). Fixes: 8ede205541ff ("ovl: add reflink/copyfile/dedup support") Signed-off-by: Amir Goldstein Signed-off-by: Miklos Szeredi --- fs/overlayfs/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c index 986313da0c88..5d1b4b38f743 100644 --- a/fs/overlayfs/file.c +++ b/fs/overlayfs/file.c @@ -461,7 +461,7 @@ static ssize_t ovl_copyfile(struct file *file_in, loff_t pos_in, break; case OVL_CLONE: - ret = vfs_clone_file_range(real_in.file, pos_in, + ret = do_clone_file_range(real_in.file, pos_in, real_out.file, pos_out, len); break; From a725356b6659469d182d662f22d770d83d3bc7b5 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Tue, 18 Sep 2018 16:34:34 +0300 Subject: [PATCH 1281/1762] vfs: swap names of {do,vfs}_clone_file_range() Commit 031a072a0b8a ("vfs: call vfs_clone_file_range() under freeze protection") created a wrapper do_clone_file_range() around vfs_clone_file_range() moving the freeze protection to former, so overlayfs could call the latter. The more common vfs practice is to call do_xxx helpers from vfs_xxx helpers, where freeze protecction is taken in the vfs_xxx helper, so this anomality could be a source of confusion. It seems that commit 8ede205541ff ("ovl: add reflink/copyfile/dedup support") may have fallen a victim to this confusion - ovl_clone_file_range() calls the vfs_clone_file_range() helper in the hope of getting freeze protection on upper fs, but in fact results in overlayfs allowing to bypass upper fs freeze protection. Swap the names of the two helpers to conform to common vfs practice and call the correct helpers from overlayfs and nfsd. Signed-off-by: Amir Goldstein Signed-off-by: Miklos Szeredi --- fs/ioctl.c | 2 +- fs/nfsd/vfs.c | 3 ++- fs/overlayfs/copy_up.c | 2 +- fs/overlayfs/file.c | 2 +- fs/read_write.c | 17 +++++++++++++++-- include/linux/fs.h | 17 +++-------------- 6 files changed, 23 insertions(+), 20 deletions(-) diff --git a/fs/ioctl.c b/fs/ioctl.c index 3212c29235ce..2005529af560 100644 --- a/fs/ioctl.c +++ b/fs/ioctl.c @@ -230,7 +230,7 @@ static long ioctl_file_clone(struct file *dst_file, unsigned long srcfd, ret = -EXDEV; if (src_file.file->f_path.mnt != dst_file->f_path.mnt) goto fdput; - ret = do_clone_file_range(src_file.file, off, dst_file, destoff, olen); + ret = vfs_clone_file_range(src_file.file, off, dst_file, destoff, olen); fdput: fdput(src_file); return ret; diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 55a099e47ba2..b53e76391e52 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -541,7 +541,8 @@ __be32 nfsd4_set_nfs4_label(struct svc_rqst *rqstp, struct svc_fh *fhp, __be32 nfsd4_clone_file_range(struct file *src, u64 src_pos, struct file *dst, u64 dst_pos, u64 count) { - return nfserrno(do_clone_file_range(src, src_pos, dst, dst_pos, count)); + return nfserrno(vfs_clone_file_range(src, src_pos, dst, dst_pos, + count)); } ssize_t nfsd_copy_file_range(struct file *src, u64 src_pos, struct file *dst, diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index 296037afecdb..1cc797a08a5b 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -141,7 +141,7 @@ static int ovl_copy_up_data(struct path *old, struct path *new, loff_t len) } /* Try to use clone_file_range to clone up within the same fs */ - error = vfs_clone_file_range(old_file, 0, new_file, 0, len); + error = do_clone_file_range(old_file, 0, new_file, 0, len); if (!error) goto out; /* Couldn't clone, so now we try to copy the data */ diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c index 5d1b4b38f743..986313da0c88 100644 --- a/fs/overlayfs/file.c +++ b/fs/overlayfs/file.c @@ -461,7 +461,7 @@ static ssize_t ovl_copyfile(struct file *file_in, loff_t pos_in, break; case OVL_CLONE: - ret = do_clone_file_range(real_in.file, pos_in, + ret = vfs_clone_file_range(real_in.file, pos_in, real_out.file, pos_out, len); break; diff --git a/fs/read_write.c b/fs/read_write.c index 39b4a21dd933..8a2737f0d61d 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1818,8 +1818,8 @@ int vfs_clone_file_prep_inodes(struct inode *inode_in, loff_t pos_in, } EXPORT_SYMBOL(vfs_clone_file_prep_inodes); -int vfs_clone_file_range(struct file *file_in, loff_t pos_in, - struct file *file_out, loff_t pos_out, u64 len) +int do_clone_file_range(struct file *file_in, loff_t pos_in, + struct file *file_out, loff_t pos_out, u64 len) { struct inode *inode_in = file_inode(file_in); struct inode *inode_out = file_inode(file_out); @@ -1866,6 +1866,19 @@ int vfs_clone_file_range(struct file *file_in, loff_t pos_in, return ret; } +EXPORT_SYMBOL(do_clone_file_range); + +int vfs_clone_file_range(struct file *file_in, loff_t pos_in, + struct file *file_out, loff_t pos_out, u64 len) +{ + int ret; + + file_start_write(file_out); + ret = do_clone_file_range(file_in, pos_in, file_out, pos_out, len); + file_end_write(file_out); + + return ret; +} EXPORT_SYMBOL(vfs_clone_file_range); /* diff --git a/include/linux/fs.h b/include/linux/fs.h index 6c0b4a1c22ff..897eae8faee1 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1828,8 +1828,10 @@ extern ssize_t vfs_copy_file_range(struct file *, loff_t , struct file *, extern int vfs_clone_file_prep_inodes(struct inode *inode_in, loff_t pos_in, struct inode *inode_out, loff_t pos_out, u64 *len, bool is_dedupe); +extern int do_clone_file_range(struct file *file_in, loff_t pos_in, + struct file *file_out, loff_t pos_out, u64 len); extern int vfs_clone_file_range(struct file *file_in, loff_t pos_in, - struct file *file_out, loff_t pos_out, u64 len); + struct file *file_out, loff_t pos_out, u64 len); extern int vfs_dedupe_file_range_compare(struct inode *src, loff_t srcoff, struct inode *dest, loff_t destoff, loff_t len, bool *is_same); @@ -2773,19 +2775,6 @@ static inline void file_end_write(struct file *file) __sb_end_write(file_inode(file)->i_sb, SB_FREEZE_WRITE); } -static inline int do_clone_file_range(struct file *file_in, loff_t pos_in, - struct file *file_out, loff_t pos_out, - u64 len) -{ - int ret; - - file_start_write(file_out); - ret = vfs_clone_file_range(file_in, pos_in, file_out, pos_out, len); - file_end_write(file_out); - - return ret; -} - /* * get_write_access() gets write permission for a file. * put_write_access() releases this write permission. From afbb1169ed5b58cfca017e368b53e019cf285853 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 19 Sep 2018 20:52:45 +0200 Subject: [PATCH 1282/1762] HID: i2c-hid: Remove RESEND_REPORT_DESCR quirk and its handling Commit 52cf93e63ee6 ("HID: i2c-hid: Don't reset device upon system resume") removes the need for the RESEND_REPORT_DESCR quirk for Raydium devices, but kept it for the SIS device id 10FB touchscreens, as the author of that commit could not determine if the quirk is still necessary there. I've tested suspend/resume on a Toshiba Click Mini L9W-B which is the device for which this quirk was added in the first place and with the "Don't reset device upon system resume" fix the quirk is no longer necessary, so this commit removes it. Note even better I also had some other devices with SIS touchscreens which suspend/resume issues, where the RESEND_REPORT_DESCR quirk did not help. I've also tested these devices with the "Don't reset device upon system resume" fix and I'm happy to report that that fix also fixes touchscreen resume on the following devices: Asus T100HA Asus T200TA Peaq C1010 Cc: Kai-Heng Feng Acked-by: Benjamin Tissoires Signed-off-by: Hans de Goede Signed-off-by: Jiri Kosina --- drivers/hid/hid-ids.h | 1 - drivers/hid/i2c-hid/i2c-hid.c | 18 +++--------------- 2 files changed, 3 insertions(+), 16 deletions(-) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 5146ee029db4..bc49909aba8e 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -976,7 +976,6 @@ #define USB_DEVICE_ID_SIS817_TOUCH 0x0817 #define USB_DEVICE_ID_SIS_TS 0x1013 #define USB_DEVICE_ID_SIS1030_TOUCH 0x1030 -#define USB_DEVICE_ID_SIS10FB_TOUCH 0x10fb #define USB_VENDOR_ID_SKYCABLE 0x1223 #define USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER 0x3F07 diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index a8610f5bf6f5..4e3592e7a3f7 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -47,8 +47,7 @@ /* quirks to control the device */ #define I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV BIT(0) #define I2C_HID_QUIRK_NO_IRQ_AFTER_RESET BIT(1) -#define I2C_HID_QUIRK_RESEND_REPORT_DESCR BIT(2) -#define I2C_HID_QUIRK_NO_RUNTIME_PM BIT(3) +#define I2C_HID_QUIRK_NO_RUNTIME_PM BIT(2) /* flags */ #define I2C_HID_STARTED 0 @@ -172,8 +171,6 @@ static const struct i2c_hid_quirks { { I2C_VENDOR_ID_HANTICK, I2C_PRODUCT_ID_HANTICK_5288, I2C_HID_QUIRK_NO_IRQ_AFTER_RESET | I2C_HID_QUIRK_NO_RUNTIME_PM }, - { USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS10FB_TOUCH, - I2C_HID_QUIRK_RESEND_REPORT_DESCR }, { 0, 0 } }; @@ -1241,22 +1238,13 @@ static int i2c_hid_resume(struct device *dev) /* Instead of resetting device, simply powers the device on. This * solves "incomplete reports" on Raydium devices 2386:3118 and - * 2386:4B33 + * 2386:4B33 and fixes various SIS touchscreens no longer sending + * data after a suspend/resume. */ ret = i2c_hid_set_power(client, I2C_HID_PWR_ON); if (ret) return ret; - /* Some devices need to re-send report descr cmd - * after resume, after this it will be back normal. - * otherwise it issues too many incomplete reports. - */ - if (ihid->quirks & I2C_HID_QUIRK_RESEND_REPORT_DESCR) { - ret = i2c_hid_command(client, &hid_report_descr_cmd, NULL, 0); - if (ret) - return ret; - } - if (hid->driver && hid->driver->reset_resume) { ret = hid->driver->reset_resume(hid); return ret; From 9ff3541e3ddf96800ce8fcd225c9e7956da49418 Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Tue, 11 Sep 2018 16:45:43 -0700 Subject: [PATCH 1283/1762] HID: intel-ish-hid: Enable Ice Lake mobile Added PCI ID for Ice Lake mobile platform. Signed-off-by: Srinivas Pandruvada Signed-off-by: Jiri Kosina --- drivers/hid/intel-ish-hid/ipc/hw-ish.h | 1 + drivers/hid/intel-ish-hid/ipc/pci-ish.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/hid/intel-ish-hid/ipc/hw-ish.h b/drivers/hid/intel-ish-hid/ipc/hw-ish.h index da133716bed0..08a8327dfd22 100644 --- a/drivers/hid/intel-ish-hid/ipc/hw-ish.h +++ b/drivers/hid/intel-ish-hid/ipc/hw-ish.h @@ -29,6 +29,7 @@ #define CNL_Ax_DEVICE_ID 0x9DFC #define GLK_Ax_DEVICE_ID 0x31A2 #define CNL_H_DEVICE_ID 0xA37C +#define ICL_MOBILE_DEVICE_ID 0x34FC #define SPT_H_DEVICE_ID 0xA135 #define REVISION_ID_CHT_A0 0x6 diff --git a/drivers/hid/intel-ish-hid/ipc/pci-ish.c b/drivers/hid/intel-ish-hid/ipc/pci-ish.c index a1125a5c7965..256b3016116c 100644 --- a/drivers/hid/intel-ish-hid/ipc/pci-ish.c +++ b/drivers/hid/intel-ish-hid/ipc/pci-ish.c @@ -38,6 +38,7 @@ static const struct pci_device_id ish_pci_tbl[] = { {PCI_DEVICE(PCI_VENDOR_ID_INTEL, CNL_Ax_DEVICE_ID)}, {PCI_DEVICE(PCI_VENDOR_ID_INTEL, GLK_Ax_DEVICE_ID)}, {PCI_DEVICE(PCI_VENDOR_ID_INTEL, CNL_H_DEVICE_ID)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, ICL_MOBILE_DEVICE_ID)}, {PCI_DEVICE(PCI_VENDOR_ID_INTEL, SPT_H_DEVICE_ID)}, {0, } }; From 8604895a34d92f5e186ceb931b0d1b384030ea3d Mon Sep 17 00:00:00 2001 From: Michael Bringmann Date: Thu, 20 Sep 2018 11:45:13 -0500 Subject: [PATCH 1284/1762] powerpc/pseries: Fix unitialized timer reset on migration After migration of a powerpc LPAR, the kernel executes code to update the system state to reflect new platform characteristics. Such changes include modifications to device tree properties provided to the system by PHYP. Property notifications received by the post_mobility_fixup() code are passed along to the kernel in general through a call to of_update_property() which in turn passes such events back to all modules through entries like the '.notifier_call' function within the NUMA module. When the NUMA module updates its state, it resets its event timer. If this occurs after a previous call to stop_topology_update() or on a system without VPHN enabled, the code runs into an unitialized timer structure and crashes. This patch adds a safety check along this path toward the problem code. An example crash log is as follows. ibmvscsi 30000081: Re-enabling adapter! ------------[ cut here ]------------ kernel BUG at kernel/time/timer.c:958! Oops: Exception in kernel mode, sig: 5 [#1] LE SMP NR_CPUS=2048 NUMA pSeries Modules linked in: nfsv3 nfs_acl nfs tcp_diag udp_diag inet_diag lockd unix_diag af_packet_diag netlink_diag grace fscache sunrpc xts vmx_crypto pseries_rng sg binfmt_misc ip_tables xfs libcrc32c sd_mod ibmvscsi ibmveth scsi_transport_srp dm_mirror dm_region_hash dm_log dm_mod CPU: 11 PID: 3067 Comm: drmgr Not tainted 4.17.0+ #179 ... NIP mod_timer+0x4c/0x400 LR reset_topology_timer+0x40/0x60 Call Trace: 0xc0000003f9407830 (unreliable) reset_topology_timer+0x40/0x60 dt_update_callback+0x100/0x120 notifier_call_chain+0x90/0x100 __blocking_notifier_call_chain+0x60/0x90 of_property_notify+0x90/0xd0 of_update_property+0x104/0x150 update_dt_property+0xdc/0x1f0 pseries_devicetree_update+0x2d0/0x510 post_mobility_fixup+0x7c/0xf0 migration_store+0xa4/0xc0 kobj_attr_store+0x30/0x60 sysfs_kf_write+0x64/0xa0 kernfs_fop_write+0x16c/0x240 __vfs_write+0x40/0x200 vfs_write+0xc8/0x240 ksys_write+0x5c/0x100 system_call+0x58/0x6c Fixes: 5d88aa85c00b ("powerpc/pseries: Update CPU maps when device tree is updated") Cc: stable@vger.kernel.org # v3.10+ Signed-off-by: Michael Bringmann Signed-off-by: Michael Ellerman --- arch/powerpc/mm/numa.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 35ac5422903a..b5a71baedbc2 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -1452,7 +1452,8 @@ static struct timer_list topology_timer; static void reset_topology_timer(void) { - mod_timer(&topology_timer, jiffies + topology_timer_secs * HZ); + if (vphn_enabled) + mod_timer(&topology_timer, jiffies + topology_timer_secs * HZ); } #ifdef CONFIG_SMP From f5fad711c06e652f90f581fc7c2caee327c33d31 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 24 Sep 2018 15:28:10 +0200 Subject: [PATCH 1285/1762] USB: serial: simple: add Motorola Tetra MTP6550 id Add device-id for the Motorola Tetra radio MTP6550. Bus 001 Device 004: ID 0cad:9012 Motorola CGISS Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0cad Motorola CGISS idProduct 0x9012 bcdDevice 24.16 iManufacturer 1 Motorola Solutions, Inc. iProduct 2 TETRA PEI interface iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 55 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 3 Generic Serial config bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0000 (Bus Powered) Reported-by: Hans Hult Cc: stable Signed-off-by: Johan Hovold --- drivers/usb/serial/usb-serial-simple.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c index 40864c2bd9dc..4d0273508043 100644 --- a/drivers/usb/serial/usb-serial-simple.c +++ b/drivers/usb/serial/usb-serial-simple.c @@ -84,7 +84,8 @@ DEVICE(moto_modem, MOTO_IDS); /* Motorola Tetra driver */ #define MOTOROLA_TETRA_IDS() \ - { USB_DEVICE(0x0cad, 0x9011) } /* Motorola Solutions TETRA PEI */ + { USB_DEVICE(0x0cad, 0x9011) }, /* Motorola Solutions TETRA PEI */ \ + { USB_DEVICE(0x0cad, 0x9012) } /* MTP6550 */ DEVICE(motorola_tetra, MOTOROLA_TETRA_IDS); /* Novatel Wireless GPS driver */ From de5c95d0f518537f59ee5aef762abc46f868c377 Mon Sep 17 00:00:00 2001 From: Selvin Xavier Date: Thu, 20 Sep 2018 22:33:00 -0700 Subject: [PATCH 1286/1762] RDMA/bnxt_re: Fix system crash during RDMA resource initialization bnxt_re_ib_reg acquires and releases the rtnl lock whenever it accesses the L2 driver. The following sequence can trigger a crash Acquires the rtnl_lock -> Registers roce driver callback with L2 driver -> release the rtnl lock bnxt_re acquires the rtnl_lock -> Request for MSIx vectors -> release the rtnl_lock Issue happens when bnxt_re proceeds with remaining part of initialization and L2 driver invokes bnxt_ulp_irq_stop as a part of bnxt_open_nic. The crash is in bnxt_qplib_nq_stop_irq as the NQ structures are not initialized yet, [ 3551.726647] BUG: unable to handle kernel NULL pointer dereference at (null) [ 3551.726656] IP: [] bnxt_qplib_nq_stop_irq+0x59/0xb0 [bnxt_re] [ 3551.726674] PGD 0 [ 3551.726679] Oops: 0002 1 SMP ... [ 3551.726822] Hardware name: Dell Inc. PowerEdge R720/08RW36, BIOS 2.4.3 07/09/2014 [ 3551.726826] task: ffff97e30eec5ee0 ti: ffff97e3173bc000 task.ti: ffff97e3173bc000 [ 3551.726829] RIP: 0010:[] [] bnxt_qplib_nq_stop_irq+0x59/0xb0 [bnxt_re] ... [ 3551.726872] Call Trace: [ 3551.726886] [] bnxt_re_stop_irq+0x4e/0x70 [bnxt_re] [ 3551.726899] [] bnxt_ulp_irq_stop+0x43/0x70 [bnxt_en] [ 3551.726908] [] bnxt_reserve_rings+0x174/0x1e0 [bnxt_en] [ 3551.726917] [] __bnxt_open_nic+0x368/0x9a0 [bnxt_en] [ 3551.726925] [] bnxt_open_nic+0x1b/0x50 [bnxt_en] [ 3551.726934] [] bnxt_setup_mq_tc+0x11f/0x260 [bnxt_en] [ 3551.726943] [] bnxt_dcbnl_ieee_setets+0xb8/0x1f0 [bnxt_en] [ 3551.726954] [] dcbnl_ieee_set+0x9a/0x250 [ 3551.726966] [] ? __alloc_skb+0xa1/0x2d0 [ 3551.726972] [] dcb_doit+0x13a/0x210 [ 3551.726981] [] rtnetlink_rcv_msg+0xa7/0x260 [ 3551.726989] [] ? rtnl_unicast+0x20/0x30 [ 3551.726996] [] ? __kmalloc_node_track_caller+0x58/0x290 [ 3551.727002] [] ? dcb_doit+0x166/0x210 [ 3551.727007] [] ? __alloc_skb+0x8d/0x2d0 [ 3551.727012] [] ? rtnl_newlink+0x880/0x880 ... [ 3551.727104] [] system_call_fastpath+0x1c/0x21 ... [ 3551.727164] RIP [] bnxt_qplib_nq_stop_irq+0x59/0xb0 [bnxt_re] [ 3551.727175] RSP [ 3551.727177] CR2: 0000000000000000 Avoid this inconsistent state and system crash by acquiring the rtnl lock for the entire duration of device initialization. Re-factor the code to remove the rtnl lock from the individual function and acquire and release it from the caller. Fixes: 1ac5a4047975 ("RDMA/bnxt_re: Add bnxt_re RoCE driver") Fixes: 6e04b1035689 ("RDMA/bnxt_re: Fix broken RoCE driver due to recent L2 driver changes") Signed-off-by: Selvin Xavier Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/bnxt_re/main.c | 93 ++++++++++++---------------- 1 file changed, 38 insertions(+), 55 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index 20b9f31052bf..85cd1a3593d6 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -78,7 +78,7 @@ static struct list_head bnxt_re_dev_list = LIST_HEAD_INIT(bnxt_re_dev_list); /* Mutex to protect the list of bnxt_re devices added */ static DEFINE_MUTEX(bnxt_re_dev_lock); static struct workqueue_struct *bnxt_re_wq; -static void bnxt_re_ib_unreg(struct bnxt_re_dev *rdev, bool lock_wait); +static void bnxt_re_ib_unreg(struct bnxt_re_dev *rdev); /* SR-IOV helper functions */ @@ -182,7 +182,7 @@ static void bnxt_re_shutdown(void *p) if (!rdev) return; - bnxt_re_ib_unreg(rdev, false); + bnxt_re_ib_unreg(rdev); } static void bnxt_re_stop_irq(void *handle) @@ -251,7 +251,7 @@ static struct bnxt_ulp_ops bnxt_re_ulp_ops = { /* Driver registration routines used to let the networking driver (bnxt_en) * to know that the RoCE driver is now installed */ -static int bnxt_re_unregister_netdev(struct bnxt_re_dev *rdev, bool lock_wait) +static int bnxt_re_unregister_netdev(struct bnxt_re_dev *rdev) { struct bnxt_en_dev *en_dev; int rc; @@ -260,14 +260,9 @@ static int bnxt_re_unregister_netdev(struct bnxt_re_dev *rdev, bool lock_wait) return -EINVAL; en_dev = rdev->en_dev; - /* Acquire rtnl lock if it is not invokded from netdev event */ - if (lock_wait) - rtnl_lock(); rc = en_dev->en_ops->bnxt_unregister_device(rdev->en_dev, BNXT_ROCE_ULP); - if (lock_wait) - rtnl_unlock(); return rc; } @@ -281,14 +276,12 @@ static int bnxt_re_register_netdev(struct bnxt_re_dev *rdev) en_dev = rdev->en_dev; - rtnl_lock(); rc = en_dev->en_ops->bnxt_register_device(en_dev, BNXT_ROCE_ULP, &bnxt_re_ulp_ops, rdev); - rtnl_unlock(); return rc; } -static int bnxt_re_free_msix(struct bnxt_re_dev *rdev, bool lock_wait) +static int bnxt_re_free_msix(struct bnxt_re_dev *rdev) { struct bnxt_en_dev *en_dev; int rc; @@ -298,13 +291,9 @@ static int bnxt_re_free_msix(struct bnxt_re_dev *rdev, bool lock_wait) en_dev = rdev->en_dev; - if (lock_wait) - rtnl_lock(); rc = en_dev->en_ops->bnxt_free_msix(rdev->en_dev, BNXT_ROCE_ULP); - if (lock_wait) - rtnl_unlock(); return rc; } @@ -320,7 +309,6 @@ static int bnxt_re_request_msix(struct bnxt_re_dev *rdev) num_msix_want = min_t(u32, BNXT_RE_MAX_MSIX, num_online_cpus()); - rtnl_lock(); num_msix_got = en_dev->en_ops->bnxt_request_msix(en_dev, BNXT_ROCE_ULP, rdev->msix_entries, num_msix_want); @@ -335,7 +323,6 @@ static int bnxt_re_request_msix(struct bnxt_re_dev *rdev) } rdev->num_msix = num_msix_got; done: - rtnl_unlock(); return rc; } @@ -358,24 +345,18 @@ static void bnxt_re_fill_fw_msg(struct bnxt_fw_msg *fw_msg, void *msg, fw_msg->timeout = timeout; } -static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev, u16 fw_ring_id, - bool lock_wait) +static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev, u16 fw_ring_id) { struct bnxt_en_dev *en_dev = rdev->en_dev; struct hwrm_ring_free_input req = {0}; struct hwrm_ring_free_output resp; struct bnxt_fw_msg fw_msg; - bool do_unlock = false; int rc = -EINVAL; if (!en_dev) return rc; memset(&fw_msg, 0, sizeof(fw_msg)); - if (lock_wait) { - rtnl_lock(); - do_unlock = true; - } bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_RING_FREE, -1, -1); req.ring_type = RING_ALLOC_REQ_RING_TYPE_L2_CMPL; @@ -386,8 +367,6 @@ static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev, u16 fw_ring_id, if (rc) dev_err(rdev_to_dev(rdev), "Failed to free HW ring:%d :%#x", req.ring_id, rc); - if (do_unlock) - rtnl_unlock(); return rc; } @@ -405,7 +384,6 @@ static int bnxt_re_net_ring_alloc(struct bnxt_re_dev *rdev, dma_addr_t *dma_arr, return rc; memset(&fw_msg, 0, sizeof(fw_msg)); - rtnl_lock(); bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_RING_ALLOC, -1, -1); req.enables = 0; req.page_tbl_addr = cpu_to_le64(dma_arr[0]); @@ -426,27 +404,21 @@ static int bnxt_re_net_ring_alloc(struct bnxt_re_dev *rdev, dma_addr_t *dma_arr, if (!rc) *fw_ring_id = le16_to_cpu(resp.ring_id); - rtnl_unlock(); return rc; } static int bnxt_re_net_stats_ctx_free(struct bnxt_re_dev *rdev, - u32 fw_stats_ctx_id, bool lock_wait) + u32 fw_stats_ctx_id) { struct bnxt_en_dev *en_dev = rdev->en_dev; struct hwrm_stat_ctx_free_input req = {0}; struct bnxt_fw_msg fw_msg; - bool do_unlock = false; int rc = -EINVAL; if (!en_dev) return rc; memset(&fw_msg, 0, sizeof(fw_msg)); - if (lock_wait) { - rtnl_lock(); - do_unlock = true; - } bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_STAT_CTX_FREE, -1, -1); req.stat_ctx_id = cpu_to_le32(fw_stats_ctx_id); @@ -457,8 +429,6 @@ static int bnxt_re_net_stats_ctx_free(struct bnxt_re_dev *rdev, dev_err(rdev_to_dev(rdev), "Failed to free HW stats context %#x", rc); - if (do_unlock) - rtnl_unlock(); return rc; } @@ -478,7 +448,6 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev, return rc; memset(&fw_msg, 0, sizeof(fw_msg)); - rtnl_lock(); bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_STAT_CTX_ALLOC, -1, -1); req.update_period_ms = cpu_to_le32(1000); @@ -490,7 +459,6 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev, if (!rc) *fw_stats_ctx_id = le32_to_cpu(resp.stat_ctx_id); - rtnl_unlock(); return rc; } @@ -929,19 +897,19 @@ fail: return rc; } -static void bnxt_re_free_nq_res(struct bnxt_re_dev *rdev, bool lock_wait) +static void bnxt_re_free_nq_res(struct bnxt_re_dev *rdev) { int i; for (i = 0; i < rdev->num_msix - 1; i++) { - bnxt_re_net_ring_free(rdev, rdev->nq[i].ring_id, lock_wait); + bnxt_re_net_ring_free(rdev, rdev->nq[i].ring_id); bnxt_qplib_free_nq(&rdev->nq[i]); } } -static void bnxt_re_free_res(struct bnxt_re_dev *rdev, bool lock_wait) +static void bnxt_re_free_res(struct bnxt_re_dev *rdev) { - bnxt_re_free_nq_res(rdev, lock_wait); + bnxt_re_free_nq_res(rdev); if (rdev->qplib_res.dpi_tbl.max) { bnxt_qplib_dealloc_dpi(&rdev->qplib_res, @@ -1219,7 +1187,7 @@ static int bnxt_re_setup_qos(struct bnxt_re_dev *rdev) return 0; } -static void bnxt_re_ib_unreg(struct bnxt_re_dev *rdev, bool lock_wait) +static void bnxt_re_ib_unreg(struct bnxt_re_dev *rdev) { int i, rc; @@ -1234,28 +1202,27 @@ static void bnxt_re_ib_unreg(struct bnxt_re_dev *rdev, bool lock_wait) cancel_delayed_work(&rdev->worker); bnxt_re_cleanup_res(rdev); - bnxt_re_free_res(rdev, lock_wait); + bnxt_re_free_res(rdev); if (test_and_clear_bit(BNXT_RE_FLAG_RCFW_CHANNEL_EN, &rdev->flags)) { rc = bnxt_qplib_deinit_rcfw(&rdev->rcfw); if (rc) dev_warn(rdev_to_dev(rdev), "Failed to deinitialize RCFW: %#x", rc); - bnxt_re_net_stats_ctx_free(rdev, rdev->qplib_ctx.stats.fw_id, - lock_wait); + bnxt_re_net_stats_ctx_free(rdev, rdev->qplib_ctx.stats.fw_id); bnxt_qplib_free_ctx(rdev->en_dev->pdev, &rdev->qplib_ctx); bnxt_qplib_disable_rcfw_channel(&rdev->rcfw); - bnxt_re_net_ring_free(rdev, rdev->rcfw.creq_ring_id, lock_wait); + bnxt_re_net_ring_free(rdev, rdev->rcfw.creq_ring_id); bnxt_qplib_free_rcfw_channel(&rdev->rcfw); } if (test_and_clear_bit(BNXT_RE_FLAG_GOT_MSIX, &rdev->flags)) { - rc = bnxt_re_free_msix(rdev, lock_wait); + rc = bnxt_re_free_msix(rdev); if (rc) dev_warn(rdev_to_dev(rdev), "Failed to free MSI-X vectors: %#x", rc); } if (test_and_clear_bit(BNXT_RE_FLAG_NETDEV_REGISTERED, &rdev->flags)) { - rc = bnxt_re_unregister_netdev(rdev, lock_wait); + rc = bnxt_re_unregister_netdev(rdev); if (rc) dev_warn(rdev_to_dev(rdev), "Failed to unregister with netdev: %#x", rc); @@ -1276,6 +1243,12 @@ static int bnxt_re_ib_reg(struct bnxt_re_dev *rdev) { int i, j, rc; + bool locked; + + /* Acquire rtnl lock through out this function */ + rtnl_lock(); + locked = true; + /* Registered a new RoCE device instance to netdev */ rc = bnxt_re_register_netdev(rdev); if (rc) { @@ -1374,12 +1347,16 @@ static int bnxt_re_ib_reg(struct bnxt_re_dev *rdev) schedule_delayed_work(&rdev->worker, msecs_to_jiffies(30000)); } + rtnl_unlock(); + locked = false; + /* Register ib dev */ rc = bnxt_re_register_ib(rdev); if (rc) { pr_err("Failed to register with IB: %#x\n", rc); goto fail; } + set_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags); dev_info(rdev_to_dev(rdev), "Device registered successfully"); for (i = 0; i < ARRAY_SIZE(bnxt_re_attributes); i++) { rc = device_create_file(&rdev->ibdev.dev, @@ -1395,7 +1372,6 @@ static int bnxt_re_ib_reg(struct bnxt_re_dev *rdev) goto fail; } } - set_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags); ib_get_eth_speed(&rdev->ibdev, 1, &rdev->active_speed, &rdev->active_width); set_bit(BNXT_RE_FLAG_ISSUE_ROCE_STATS, &rdev->flags); @@ -1404,17 +1380,21 @@ static int bnxt_re_ib_reg(struct bnxt_re_dev *rdev) return 0; free_sctx: - bnxt_re_net_stats_ctx_free(rdev, rdev->qplib_ctx.stats.fw_id, true); + bnxt_re_net_stats_ctx_free(rdev, rdev->qplib_ctx.stats.fw_id); free_ctx: bnxt_qplib_free_ctx(rdev->en_dev->pdev, &rdev->qplib_ctx); disable_rcfw: bnxt_qplib_disable_rcfw_channel(&rdev->rcfw); free_ring: - bnxt_re_net_ring_free(rdev, rdev->rcfw.creq_ring_id, true); + bnxt_re_net_ring_free(rdev, rdev->rcfw.creq_ring_id); free_rcfw: bnxt_qplib_free_rcfw_channel(&rdev->rcfw); fail: - bnxt_re_ib_unreg(rdev, true); + if (!locked) + rtnl_lock(); + bnxt_re_ib_unreg(rdev); + rtnl_unlock(); + return rc; } @@ -1567,7 +1547,7 @@ static int bnxt_re_netdev_event(struct notifier_block *notifier, */ if (atomic_read(&rdev->sched_count) > 0) goto exit; - bnxt_re_ib_unreg(rdev, false); + bnxt_re_ib_unreg(rdev); bnxt_re_remove_one(rdev); bnxt_re_dev_unreg(rdev); break; @@ -1646,7 +1626,10 @@ static void __exit bnxt_re_mod_exit(void) */ flush_workqueue(bnxt_re_wq); bnxt_re_dev_stop(rdev); - bnxt_re_ib_unreg(rdev, true); + /* Acquire the rtnl_lock as the L2 resources are freed here */ + rtnl_lock(); + bnxt_re_ib_unreg(rdev); + rtnl_unlock(); bnxt_re_remove_one(rdev); bnxt_re_dev_unreg(rdev); } From 4679b61f2640e07724507fcd9dc070517bc6e6cb Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Mon, 24 Sep 2018 17:23:01 +0200 Subject: [PATCH 1287/1762] KVM: x86: never trap MSR_KERNEL_GS_BASE KVM has an old optimization whereby accesses to the kernel GS base MSR are trapped when the guest is in 32-bit and not when it is in 64-bit mode. The idea is that swapgs is not available in 32-bit mode, thus the guest has no reason to access the MSR unless in 64-bit mode and 32-bit applications need not pay the price of switching the kernel GS base between the host and the guest values. However, this optimization adds complexity to the code for little benefit (these days most guests are going to be 64-bit anyway) and in fact broke after commit 678e315e78a7 ("KVM: vmx: add dedicated utility to access guest's kernel_gs_base", 2018-08-06); the guest kernel GS base can be corrupted across SMIs and UEFI Secure Boot is therefore broken (a secure boot Linux guest, for example, fails to reach the login prompt about half the time). This patch just removes the optimization; the kernel GS base MSR is now never trapped by KVM, similarly to the FS and GS base MSRs. Fixes: 678e315e78a780dbef384b92339c8414309dbc11 Reviewed-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 47 ++++++++++------------------------------------ 1 file changed, 10 insertions(+), 37 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 06412ba46aa3..8b066480224b 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -121,7 +121,6 @@ module_param_named(pml, enable_pml, bool, S_IRUGO); #define MSR_BITMAP_MODE_X2APIC 1 #define MSR_BITMAP_MODE_X2APIC_APICV 2 -#define MSR_BITMAP_MODE_LM 4 #define KVM_VMX_TSC_MULTIPLIER_MAX 0xffffffffffffffffULL @@ -2899,8 +2898,7 @@ static void vmx_prepare_switch_to_guest(struct kvm_vcpu *vcpu) vmx->msr_host_kernel_gs_base = read_msr(MSR_KERNEL_GS_BASE); } - if (is_long_mode(&vmx->vcpu)) - wrmsrl(MSR_KERNEL_GS_BASE, vmx->msr_guest_kernel_gs_base); + wrmsrl(MSR_KERNEL_GS_BASE, vmx->msr_guest_kernel_gs_base); #else savesegment(fs, fs_sel); savesegment(gs, gs_sel); @@ -2951,8 +2949,7 @@ static void vmx_prepare_switch_to_host(struct vcpu_vmx *vmx) vmx->loaded_cpu_state = NULL; #ifdef CONFIG_X86_64 - if (is_long_mode(&vmx->vcpu)) - rdmsrl(MSR_KERNEL_GS_BASE, vmx->msr_guest_kernel_gs_base); + rdmsrl(MSR_KERNEL_GS_BASE, vmx->msr_guest_kernel_gs_base); #endif if (host_state->ldt_sel || (host_state->gs_sel & 7)) { kvm_load_ldt(host_state->ldt_sel); @@ -2980,24 +2977,19 @@ static void vmx_prepare_switch_to_host(struct vcpu_vmx *vmx) #ifdef CONFIG_X86_64 static u64 vmx_read_guest_kernel_gs_base(struct vcpu_vmx *vmx) { - if (is_long_mode(&vmx->vcpu)) { - preempt_disable(); - if (vmx->loaded_cpu_state) - rdmsrl(MSR_KERNEL_GS_BASE, - vmx->msr_guest_kernel_gs_base); - preempt_enable(); - } + preempt_disable(); + if (vmx->loaded_cpu_state) + rdmsrl(MSR_KERNEL_GS_BASE, vmx->msr_guest_kernel_gs_base); + preempt_enable(); return vmx->msr_guest_kernel_gs_base; } static void vmx_write_guest_kernel_gs_base(struct vcpu_vmx *vmx, u64 data) { - if (is_long_mode(&vmx->vcpu)) { - preempt_disable(); - if (vmx->loaded_cpu_state) - wrmsrl(MSR_KERNEL_GS_BASE, data); - preempt_enable(); - } + preempt_disable(); + if (vmx->loaded_cpu_state) + wrmsrl(MSR_KERNEL_GS_BASE, data); + preempt_enable(); vmx->msr_guest_kernel_gs_base = data; } #endif @@ -5073,19 +5065,6 @@ static void vmx_set_efer(struct kvm_vcpu *vcpu, u64 efer) if (!msr) return; - /* - * MSR_KERNEL_GS_BASE is not intercepted when the guest is in - * 64-bit mode as a 64-bit kernel may frequently access the - * MSR. This means we need to manually save/restore the MSR - * when switching between guest and host state, but only if - * the guest is in 64-bit mode. Sync our cached value if the - * guest is transitioning to 32-bit mode and the CPU contains - * guest state, i.e. the cache is stale. - */ -#ifdef CONFIG_X86_64 - if (!(efer & EFER_LMA)) - (void)vmx_read_guest_kernel_gs_base(vmx); -#endif vcpu->arch.efer = efer; if (efer & EFER_LMA) { vm_entry_controls_setbit(to_vmx(vcpu), VM_ENTRY_IA32E_MODE); @@ -6078,9 +6057,6 @@ static u8 vmx_msr_bitmap_mode(struct kvm_vcpu *vcpu) mode |= MSR_BITMAP_MODE_X2APIC_APICV; } - if (is_long_mode(vcpu)) - mode |= MSR_BITMAP_MODE_LM; - return mode; } @@ -6121,9 +6097,6 @@ static void vmx_update_msr_bitmap(struct kvm_vcpu *vcpu) if (!changed) return; - vmx_set_intercept_for_msr(msr_bitmap, MSR_KERNEL_GS_BASE, MSR_TYPE_RW, - !(mode & MSR_BITMAP_MODE_LM)); - if (changed & (MSR_BITMAP_MODE_X2APIC | MSR_BITMAP_MODE_X2APIC_APICV)) vmx_update_msr_bitmap_x2apic(msr_bitmap, mode); From 469ed9d823b7d240d6b9574f061ded7c3834c167 Mon Sep 17 00:00:00 2001 From: Steve Capper Date: Fri, 21 Sep 2018 16:34:04 +0100 Subject: [PATCH 1288/1762] arm64: hugetlb: Fix handling of young ptes In the contiguous bit hugetlb break-before-make code we assume that all hugetlb pages are young. In fact, remove_migration_pte is able to place an old hugetlb pte so this assumption is not valid. This patch fixes the contiguous hugetlb scanning code to preserve young ptes. Fixes: d8bdcff28764 ("arm64: hugetlb: Add break-before-make logic for contiguous entries") Signed-off-by: Steve Capper Signed-off-by: Will Deacon --- arch/arm64/mm/hugetlbpage.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c index 192b3ba07075..f85be2f8b140 100644 --- a/arch/arm64/mm/hugetlbpage.c +++ b/arch/arm64/mm/hugetlbpage.c @@ -117,11 +117,14 @@ static pte_t get_clear_flush(struct mm_struct *mm, /* * If HW_AFDBM is enabled, then the HW could turn on - * the dirty bit for any page in the set, so check - * them all. All hugetlb entries are already young. + * the dirty or accessed bit for any page in the set, + * so check them all. */ if (pte_dirty(pte)) orig_pte = pte_mkdirty(orig_pte); + + if (pte_young(pte)) + orig_pte = pte_mkyoung(orig_pte); } if (valid) { @@ -340,10 +343,13 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma, if (!pte_same(orig_pte, pte)) changed = 1; - /* Make sure we don't lose the dirty state */ + /* Make sure we don't lose the dirty or young state */ if (pte_dirty(orig_pte)) pte = pte_mkdirty(pte); + if (pte_young(orig_pte)) + pte = pte_mkyoung(pte); + hugeprot = pte_pgprot(pte); for (i = 0; i < ncontig; i++, ptep++, addr += pgsize, pfn += dpfn) set_pte_at(vma->vm_mm, addr, ptep, pfn_pte(pfn, hugeprot)); From 031e6e6b4e1277e76e73a6ab209095ad9bf3ce52 Mon Sep 17 00:00:00 2001 From: Steve Capper Date: Fri, 21 Sep 2018 16:34:05 +0100 Subject: [PATCH 1289/1762] arm64: hugetlb: Avoid unnecessary clearing in huge_ptep_set_access_flags For contiguous hugetlb, huge_ptep_set_access_flags performs a get_clear_flush (which then flushes the TLBs) even when no change of ptes is necessary. Unfortunately, this behaviour can lead to back-to-back page faults being generated when running with multiple threads that access the same contiguous huge page. Thread 1 | Thread 2 -----------------------------+------------------------------ hugetlb_fault | huge_ptep_set_access_flags | -> invalidate pte range | hugetlb_fault continue processing | wait for hugetlb_fault_mutex release mutex and return | huge_ptep_set_access_flags | -> invalidate pte range hugetlb_fault ... This patch changes huge_ptep_set_access_flags s.t. we first read the contiguous range of ptes (whilst preserving dirty information); the pte range is only then invalidated where necessary and this prevents further spurious page faults. Fixes: d8bdcff28764 ("arm64: hugetlb: Add break-before-make logic for contiguous entries") Reported-by: Lei Zhang Signed-off-by: Steve Capper Signed-off-by: Will Deacon --- arch/arm64/mm/hugetlbpage.c | 38 +++++++++++++++++++++++++++++++++---- 1 file changed, 34 insertions(+), 4 deletions(-) diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c index f85be2f8b140..f58ea503ad01 100644 --- a/arch/arm64/mm/hugetlbpage.c +++ b/arch/arm64/mm/hugetlbpage.c @@ -323,11 +323,40 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm, return get_clear_flush(mm, addr, ptep, pgsize, ncontig); } +/* + * huge_ptep_set_access_flags will update access flags (dirty, accesssed) + * and write permission. + * + * For a contiguous huge pte range we need to check whether or not write + * permission has to change only on the first pte in the set. Then for + * all the contiguous ptes we need to check whether or not there is a + * discrepancy between dirty or young. + */ +static int __cont_access_flags_changed(pte_t *ptep, pte_t pte, int ncontig) +{ + int i; + + if (pte_write(pte) != pte_write(huge_ptep_get(ptep))) + return 1; + + for (i = 0; i < ncontig; i++) { + pte_t orig_pte = huge_ptep_get(ptep + i); + + if (pte_dirty(pte) != pte_dirty(orig_pte)) + return 1; + + if (pte_young(pte) != pte_young(orig_pte)) + return 1; + } + + return 0; +} + int huge_ptep_set_access_flags(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte, int dirty) { - int ncontig, i, changed = 0; + int ncontig, i; size_t pgsize = 0; unsigned long pfn = pte_pfn(pte), dpfn; pgprot_t hugeprot; @@ -339,9 +368,10 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma, ncontig = find_num_contig(vma->vm_mm, addr, ptep, &pgsize); dpfn = pgsize >> PAGE_SHIFT; + if (!__cont_access_flags_changed(ptep, pte, ncontig)) + return 0; + orig_pte = get_clear_flush(vma->vm_mm, addr, ptep, pgsize, ncontig); - if (!pte_same(orig_pte, pte)) - changed = 1; /* Make sure we don't lose the dirty or young state */ if (pte_dirty(orig_pte)) @@ -354,7 +384,7 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma, for (i = 0; i < ncontig; i++, ptep++, addr += pgsize, pfn += dpfn) set_pte_at(vma->vm_mm, addr, ptep, pfn_pte(pfn, hugeprot)); - return changed; + return 1; } void huge_ptep_set_wrprotect(struct mm_struct *mm, From 3ab97942d0213b6583a5408630a8cbbfbf54730f Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Wed, 19 Sep 2018 17:14:01 -0700 Subject: [PATCH 1290/1762] ARM: dts: BCM63xx: Fix incorrect interrupt specifiers A number of our interrupts were incorrectly specified, fix both the PPI and SPI interrupts to be correct. Fixes: b5762cacc411 ("ARM: bcm63138: add NAND DT support") Fixes: 46d4bca0445a ("ARM: BCM63XX: add BCM63138 minimal Device Tree") Signed-off-by: Florian Fainelli --- arch/arm/boot/dts/bcm63138.dtsi | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/arch/arm/boot/dts/bcm63138.dtsi b/arch/arm/boot/dts/bcm63138.dtsi index 43ee992ccdcf..6df61518776f 100644 --- a/arch/arm/boot/dts/bcm63138.dtsi +++ b/arch/arm/boot/dts/bcm63138.dtsi @@ -106,21 +106,23 @@ global_timer: timer@1e200 { compatible = "arm,cortex-a9-global-timer"; reg = <0x1e200 0x20>; - interrupts = ; + interrupts = ; clocks = <&axi_clk>; }; local_timer: local-timer@1e600 { compatible = "arm,cortex-a9-twd-timer"; reg = <0x1e600 0x20>; - interrupts = ; + interrupts = ; clocks = <&axi_clk>; }; twd_watchdog: watchdog@1e620 { compatible = "arm,cortex-a9-twd-wdt"; reg = <0x1e620 0x20>; - interrupts = ; + interrupts = ; }; armpll: armpll { @@ -158,7 +160,7 @@ serial0: serial@600 { compatible = "brcm,bcm6345-uart"; reg = <0x600 0x1b>; - interrupts = ; + interrupts = ; clocks = <&periph_clk>; clock-names = "periph"; status = "disabled"; @@ -167,7 +169,7 @@ serial1: serial@620 { compatible = "brcm,bcm6345-uart"; reg = <0x620 0x1b>; - interrupts = ; + interrupts = ; clocks = <&periph_clk>; clock-names = "periph"; status = "disabled"; @@ -180,7 +182,7 @@ reg = <0x2000 0x600>, <0xf0 0x10>; reg-names = "nand", "nand-int-base"; status = "disabled"; - interrupts = ; + interrupts = ; interrupt-names = "nand"; }; From d8e2262a5044c1a05b4da51e5d0976f10c487a9f Mon Sep 17 00:00:00 2001 From: Saif Hasan Date: Fri, 21 Sep 2018 14:30:05 -0700 Subject: [PATCH 1291/1762] mpls: allow routes on ip6gre devices Summary: This appears to be necessary and sufficient change to enable `MPLS` on `ip6gre` tunnels (RFC4023). This diff allows IP6GRE devices to be recognized by MPLS kernel module and hence user can configure interface to accept packets with mpls headers as well setup mpls routes on them. Test Plan: Test plan consists of multiple containers connected via GRE-V6 tunnel. Then carrying out testing steps as below. - Carry out necessary sysctl settings on all containers ``` sysctl -w net.mpls.platform_labels=65536 sysctl -w net.mpls.ip_ttl_propagate=1 sysctl -w net.mpls.conf.lo.input=1 ``` - Establish IP6GRE tunnels ``` ip -6 tunnel add name if_1_2_1 mode ip6gre \ local 2401:db00:21:6048:feed:0::1 \ remote 2401:db00:21:6048:feed:0::2 key 1 ip link set dev if_1_2_1 up sysctl -w net.mpls.conf.if_1_2_1.input=1 ip -4 addr add 169.254.0.2/31 dev if_1_2_1 scope link ip -6 tunnel add name if_1_3_1 mode ip6gre \ local 2401:db00:21:6048:feed:0::1 \ remote 2401:db00:21:6048:feed:0::3 key 1 ip link set dev if_1_3_1 up sysctl -w net.mpls.conf.if_1_3_1.input=1 ip -4 addr add 169.254.0.4/31 dev if_1_3_1 scope link ``` - Install MPLS encap rules on node-1 towards node-2 ``` ip route add 192.168.0.11/32 nexthop encap mpls 32/64 \ via inet 169.254.0.3 dev if_1_2_1 ``` - Install MPLS forwarding rules on node-2 and node-3 ``` // node2 ip -f mpls route add 32 via inet 169.254.0.7 dev if_2_4_1 // node3 ip -f mpls route add 64 via inet 169.254.0.12 dev if_4_3_1 ``` - Ping 192.168.0.11 (node4) from 192.168.0.1 (node1) (where routing towards 192.168.0.1 is via IP route directly towards node1 from node4) ``` ping 192.168.0.11 ``` - tcpdump on interface to capture ping packets wrapped within MPLS header which inturn wrapped within IP6GRE header ``` 16:43:41.121073 IP6 2401:db00:21:6048:feed::1 > 2401:db00:21:6048:feed::2: DSTOPT GREv0, key=0x1, length 100: MPLS (label 32, exp 0, ttl 255) (label 64, exp 0, [S], ttl 255) IP 192.168.0.1 > 192.168.0.11: ICMP echo request, id 1208, seq 45, length 64 0x0000: 6000 2cdb 006c 3c3f 2401 db00 0021 6048 `.,..l Signed-off-by: David S. Miller --- net/mpls/af_mpls.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c index 7a4de6d618b1..8fbe6cdbe255 100644 --- a/net/mpls/af_mpls.c +++ b/net/mpls/af_mpls.c @@ -1533,10 +1533,14 @@ static int mpls_dev_notify(struct notifier_block *this, unsigned long event, unsigned int flags; if (event == NETDEV_REGISTER) { - /* For now just support Ethernet, IPGRE, SIT and IPIP devices */ + + /* For now just support Ethernet, IPGRE, IP6GRE, SIT and + * IPIP devices + */ if (dev->type == ARPHRD_ETHER || dev->type == ARPHRD_LOOPBACK || dev->type == ARPHRD_IPGRE || + dev->type == ARPHRD_IP6GRE || dev->type == ARPHRD_SIT || dev->type == ARPHRD_TUNNEL) { mdev = mpls_add_dev(dev); From ccfec9e5cb2d48df5a955b7bf47f7782157d3bc2 Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Mon, 24 Sep 2018 15:48:19 +0200 Subject: [PATCH 1292/1762] ip_tunnel: be careful when accessing the inner header Cong noted that we need the same checks introduced by commit 76c0ddd8c3a6 ("ip6_tunnel: be careful when accessing the inner header") even for ipv4 tunnels. Fixes: c54419321455 ("GRE: Refactor GRE tunneling code.") Suggested-by: Cong Wang Signed-off-by: Paolo Abeni Signed-off-by: David S. Miller --- net/ipv4/ip_tunnel.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index c4f5602308ed..284a22154b4e 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -627,6 +627,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev, const struct iphdr *tnl_params, u8 protocol) { struct ip_tunnel *tunnel = netdev_priv(dev); + unsigned int inner_nhdr_len = 0; const struct iphdr *inner_iph; struct flowi4 fl4; u8 tos, ttl; @@ -636,6 +637,14 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev, __be32 dst; bool connected; + /* ensure we can access the inner net header, for several users below */ + if (skb->protocol == htons(ETH_P_IP)) + inner_nhdr_len = sizeof(struct iphdr); + else if (skb->protocol == htons(ETH_P_IPV6)) + inner_nhdr_len = sizeof(struct ipv6hdr); + if (unlikely(!pskb_may_pull(skb, inner_nhdr_len))) + goto tx_error; + inner_iph = (const struct iphdr *)skb_inner_network_header(skb); connected = (tunnel->parms.iph.daddr != 0); From f4a518797b40e956b6e6220b42657e045dc24470 Mon Sep 17 00:00:00 2001 From: Antoine Tenart Date: Mon, 24 Sep 2018 16:56:13 +0200 Subject: [PATCH 1293/1762] net: mvneta: fix the remaining Rx descriptor unmapping issues With CONFIG_DMA_API_DEBUG enabled we get DMA unmapping warning in various places of the mvneta driver, for example when putting down an interface while traffic is passing through. The issue is when using s/w buffer management, the Rx buffers are mapped using dma_map_page but unmapped with dma_unmap_single. This patch fixes this by using the right unmapping function. Fixes: 562e2f467e71 ("net: mvneta: Improve the buffer allocation method for SWBM") Signed-off-by: Antoine Tenart Reviewed-by: Gregory CLEMENT Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvneta.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 2db9708f2e24..b4ed7d394d07 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -1890,8 +1890,8 @@ static void mvneta_rxq_drop_pkts(struct mvneta_port *pp, if (!data || !(rx_desc->buf_phys_addr)) continue; - dma_unmap_single(pp->dev->dev.parent, rx_desc->buf_phys_addr, - MVNETA_RX_BUF_SIZE(pp->pkt_size), DMA_FROM_DEVICE); + dma_unmap_page(pp->dev->dev.parent, rx_desc->buf_phys_addr, + PAGE_SIZE, DMA_FROM_DEVICE); __free_page(data); } } @@ -2039,9 +2039,8 @@ static int mvneta_rx_swbm(struct napi_struct *napi, frag_offset, frag_size, PAGE_SIZE); - dma_unmap_single(dev->dev.parent, phys_addr, - PAGE_SIZE, - DMA_FROM_DEVICE); + dma_unmap_page(dev->dev.parent, phys_addr, + PAGE_SIZE, DMA_FROM_DEVICE); rxq->left_size -= frag_size; } From 57a489786de9ec37d6e25ef1305dc337047f0236 Mon Sep 17 00:00:00 2001 From: James Cowgill Date: Thu, 6 Sep 2018 22:57:56 +0100 Subject: [PATCH 1294/1762] RISC-V: include linux/ftrace.h in asm-prototypes.h Building a riscv kernel with CONFIG_FUNCTION_TRACER and CONFIG_MODVERSIONS enabled results in these two warnings: MODPOST vmlinux.o WARNING: EXPORT symbol "return_to_handler" [vmlinux] version generation failed, symbol will not be versioned. WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned. When exporting symbols from an assembly file, the MODVERSIONS code requires their prototypes to be defined in asm-prototypes.h (see scripts/Makefile.build). Since both of these symbols have prototypes defined in linux/ftrace.h, include this header from RISC-V's asm-prototypes.h. Reported-by: Karsten Merker Signed-off-by: James Cowgill Signed-off-by: Palmer Dabbelt --- arch/riscv/include/asm/asm-prototypes.h | 7 +++++++ 1 file changed, 7 insertions(+) create mode 100644 arch/riscv/include/asm/asm-prototypes.h diff --git a/arch/riscv/include/asm/asm-prototypes.h b/arch/riscv/include/asm/asm-prototypes.h new file mode 100644 index 000000000000..c9fecd120d18 --- /dev/null +++ b/arch/riscv/include/asm/asm-prototypes.h @@ -0,0 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_RISCV_PROTOTYPES_H + +#include +#include + +#endif /* _ASM_RISCV_PROTOTYPES_H */ From 6697576788816985f9c79da190abfaad7c9e1738 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Thu, 20 Sep 2018 11:03:22 -0700 Subject: [PATCH 1295/1762] i2c: i2c-qcom-geni: Properly handle DMA safe buffers We shouldn't attempt to DMA map the message buffers passed into this driver from the i2c core unless the message we're mapping have been properly setup for DMA. The i2c core indicates such a situation by setting the I2C_M_DMA_SAFE flag, so check for that flag before using DMA mode. We can also bounce the buffer if it isn't already mapped properly by using the i2c_get_dma_safe_msg_buf() APIs, so do that when we want to use DMA for a message. This fixes a problem where the kernel oopses cleaning pages for a buffer that's mapped into the vmalloc space. The pages are returned from request_firmware() and passed down directly to the i2c master to write to the i2c touchscreen device. Mapping vmalloc buffers with dma_map_single() won't work reliably, causing an oops like below: Unable to handle kernel paging request at virtual address ffffffc01391d000 ... Reported-by: Philip Chen Signed-off-by: Stephen Boyd Reviewed-by: Douglas Anderson Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-qcom-geni.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index 36732eb688a4..9f2eb02481d3 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -367,20 +367,26 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, dma_addr_t rx_dma; enum geni_se_xfer_mode mode; unsigned long time_left = XFER_TIMEOUT; + void *dma_buf; gi2c->cur = msg; - mode = msg->len > 32 ? GENI_SE_DMA : GENI_SE_FIFO; + mode = GENI_SE_FIFO; + dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (dma_buf) + mode = GENI_SE_DMA; + geni_se_select_mode(&gi2c->se, mode); writel_relaxed(msg->len, gi2c->se.base + SE_I2C_RX_TRANS_LEN); geni_se_setup_m_cmd(&gi2c->se, I2C_READ, m_param); if (mode == GENI_SE_DMA) { int ret; - ret = geni_se_rx_dma_prep(&gi2c->se, msg->buf, msg->len, + ret = geni_se_rx_dma_prep(&gi2c->se, dma_buf, msg->len, &rx_dma); if (ret) { mode = GENI_SE_FIFO; geni_se_select_mode(&gi2c->se, mode); + i2c_put_dma_safe_msg_buf(dma_buf, msg, false); } } @@ -393,6 +399,7 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, if (gi2c->err) geni_i2c_rx_fsm_rst(gi2c); geni_se_rx_dma_unprep(&gi2c->se, rx_dma, msg->len); + i2c_put_dma_safe_msg_buf(dma_buf, msg, !gi2c->err); } return gi2c->err; } @@ -403,20 +410,26 @@ static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, dma_addr_t tx_dma; enum geni_se_xfer_mode mode; unsigned long time_left; + void *dma_buf; gi2c->cur = msg; - mode = msg->len > 32 ? GENI_SE_DMA : GENI_SE_FIFO; + mode = GENI_SE_FIFO; + dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (dma_buf) + mode = GENI_SE_DMA; + geni_se_select_mode(&gi2c->se, mode); writel_relaxed(msg->len, gi2c->se.base + SE_I2C_TX_TRANS_LEN); geni_se_setup_m_cmd(&gi2c->se, I2C_WRITE, m_param); if (mode == GENI_SE_DMA) { int ret; - ret = geni_se_tx_dma_prep(&gi2c->se, msg->buf, msg->len, + ret = geni_se_tx_dma_prep(&gi2c->se, dma_buf, msg->len, &tx_dma); if (ret) { mode = GENI_SE_FIFO; geni_se_select_mode(&gi2c->se, mode); + i2c_put_dma_safe_msg_buf(dma_buf, msg, false); } } @@ -432,6 +445,7 @@ static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, if (gi2c->err) geni_i2c_tx_fsm_rst(gi2c); geni_se_tx_dma_unprep(&gi2c->se, tx_dma, msg->len); + i2c_put_dma_safe_msg_buf(dma_buf, msg, !gi2c->err); } return gi2c->err; } From ea51e17b953f391c0a7d6684141e76a5ab209fef Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Mon, 24 Sep 2018 18:14:37 +0100 Subject: [PATCH 1296/1762] i2c: i2c-isch: fix spelling mistake "unitialized" -> "uninitialized" Trivial fix to spelling mistake in dev_notice message. Signed-off-by: Colin Ian King Reviewed-by: Jean Delvare Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-isch.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-isch.c b/drivers/i2c/busses/i2c-isch.c index 0cf1379f4e80..5c754bf659e2 100644 --- a/drivers/i2c/busses/i2c-isch.c +++ b/drivers/i2c/busses/i2c-isch.c @@ -164,7 +164,7 @@ static s32 sch_access(struct i2c_adapter *adap, u16 addr, * run ~75 kHz instead which should do no harm. */ dev_notice(&sch_adapter.dev, - "Clock divider unitialized. Setting defaults\n"); + "Clock divider uninitialized. Setting defaults\n"); outw(backbone_speed / (4 * 100), SMBHSTCLK); } From 74bc2abca7603c956d1e331e8b9bee7b874c1eec Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Mon, 27 Aug 2018 12:56:24 +0200 Subject: [PATCH 1297/1762] iommu/rockchip: Free irqs in shutdown handler In the iommu's shutdown handler we disable runtime-pm which could result in the irq-handler running unclocked and since commit 3fc7c5c0cff3 ("iommu/rockchip: Handle errors returned from PM framework") we warn about that fact. This can cause warnings on shutdown on some Rockchip machines, so free the irqs in the shutdown handler before we disable runtime-pm. Reported-by: Enric Balletbo i Serra Fixes: 3fc7c5c0cff3 ("iommu/rockchip: Handle errors returned from PM framework") Signed-off-by: Heiko Stuebner Tested-by: Enric Balletbo i Serra Acked-by: Marc Zyngier Signed-off-by: Joerg Roedel --- drivers/iommu/rockchip-iommu.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c index 258115b10fa9..ad3e2b97469e 100644 --- a/drivers/iommu/rockchip-iommu.c +++ b/drivers/iommu/rockchip-iommu.c @@ -1241,6 +1241,12 @@ err_unprepare_clocks: static void rk_iommu_shutdown(struct platform_device *pdev) { + struct rk_iommu *iommu = platform_get_drvdata(pdev); + int i = 0, irq; + + while ((irq = platform_get_irq(pdev, i++)) != -ENXIO) + devm_free_irq(iommu->dev, irq, iommu); + pm_runtime_force_suspend(&pdev->dev); } From b85bfa246efd24ea3fdb5ee949c28e3110c6d299 Mon Sep 17 00:00:00 2001 From: Daniel Kurtz Date: Sat, 22 Sep 2018 13:58:26 -0600 Subject: [PATCH 1298/1762] pinctrl/amd: poll InterruptEnable bits in amd_gpio_irq_set_type From the AMD BKDG, if WAKE_INT_MASTER_REG.MaskStsEn is set, a software write to the debounce registers of *any* gpio will block wake/interrupt status generation for *all* gpios for a length of time that depends on WAKE_INT_MASTER_REG.MaskStsLength[11:0]. During this period the Interrupt Delivery bit (INTERRUPT_ENABLE) will read as 0. In commit 4c1de0414a1340 ("pinctrl/amd: poll InterruptEnable bits in enable_irq") we tried to fix this same "gpio Interrupts are blocked immediately after writing debounce registers" problem, but incorrectly assumed it only affected the gpio whose debounce was being configured and not ALL gpios. To solve this for all gpios, we move the polling loop from amd_gpio_irq_enable() to amd_gpio_irq_set_type(), while holding the gpio spinlock. This ensures that another gpio operation (e.g. amd_gpio_irq_unmask()) can read a temporarily disabled IRQ and incorrectly disable it while trying to modify some other register bits. Fixes: 4c1de0414a1340 pinctrl/amd: poll InterruptEnable bits in enable_irq Signed-off-by: Daniel Kurtz Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-amd.c | 33 +++++++++++++++++++++++---------- 1 file changed, 23 insertions(+), 10 deletions(-) diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c index 41ccc759b8b8..1425c2874d40 100644 --- a/drivers/pinctrl/pinctrl-amd.c +++ b/drivers/pinctrl/pinctrl-amd.c @@ -348,21 +348,12 @@ static void amd_gpio_irq_enable(struct irq_data *d) unsigned long flags; struct gpio_chip *gc = irq_data_get_irq_chip_data(d); struct amd_gpio *gpio_dev = gpiochip_get_data(gc); - u32 mask = BIT(INTERRUPT_ENABLE_OFF) | BIT(INTERRUPT_MASK_OFF); raw_spin_lock_irqsave(&gpio_dev->lock, flags); pin_reg = readl(gpio_dev->base + (d->hwirq)*4); pin_reg |= BIT(INTERRUPT_ENABLE_OFF); pin_reg |= BIT(INTERRUPT_MASK_OFF); writel(pin_reg, gpio_dev->base + (d->hwirq)*4); - /* - * When debounce logic is enabled it takes ~900 us before interrupts - * can be enabled. During this "debounce warm up" period the - * "INTERRUPT_ENABLE" bit will read as 0. Poll the bit here until it - * reads back as 1, signaling that interrupts are now enabled. - */ - while ((readl(gpio_dev->base + (d->hwirq)*4) & mask) != mask) - continue; raw_spin_unlock_irqrestore(&gpio_dev->lock, flags); } @@ -426,7 +417,7 @@ static void amd_gpio_irq_eoi(struct irq_data *d) static int amd_gpio_irq_set_type(struct irq_data *d, unsigned int type) { int ret = 0; - u32 pin_reg; + u32 pin_reg, pin_reg_irq_en, mask; unsigned long flags, irq_flags; struct gpio_chip *gc = irq_data_get_irq_chip_data(d); struct amd_gpio *gpio_dev = gpiochip_get_data(gc); @@ -495,6 +486,28 @@ static int amd_gpio_irq_set_type(struct irq_data *d, unsigned int type) } pin_reg |= CLR_INTR_STAT << INTERRUPT_STS_OFF; + /* + * If WAKE_INT_MASTER_REG.MaskStsEn is set, a software write to the + * debounce registers of any GPIO will block wake/interrupt status + * generation for *all* GPIOs for a lenght of time that depends on + * WAKE_INT_MASTER_REG.MaskStsLength[11:0]. During this period the + * INTERRUPT_ENABLE bit will read as 0. + * + * We temporarily enable irq for the GPIO whose configuration is + * changing, and then wait for it to read back as 1 to know when + * debounce has settled and then disable the irq again. + * We do this polling with the spinlock held to ensure other GPIO + * access routines do not read an incorrect value for the irq enable + * bit of other GPIOs. We keep the GPIO masked while polling to avoid + * spurious irqs, and disable the irq again after polling. + */ + mask = BIT(INTERRUPT_ENABLE_OFF); + pin_reg_irq_en = pin_reg; + pin_reg_irq_en |= mask; + pin_reg_irq_en &= ~BIT(INTERRUPT_MASK_OFF); + writel(pin_reg_irq_en, gpio_dev->base + (d->hwirq)*4); + while ((readl(gpio_dev->base + (d->hwirq)*4) & mask) != mask) + continue; writel(pin_reg, gpio_dev->base + (d->hwirq)*4); raw_spin_unlock_irqrestore(&gpio_dev->lock, flags); From e50d95e2ad1266f8d3fcdf0724f03dbdffd400aa Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Mon, 24 Sep 2018 17:32:11 +0300 Subject: [PATCH 1299/1762] pinctrl: cannonlake: Fix HOSTSW_OWN register offset of H variant It turns out the HOSTSW_OWN register offset is different between LP and H variants. The latter should use 0xc0 instead so fix that. Link: https://bugzilla.kernel.org/show_bug.cgi?id=199911 Fixes: a663ccf0fea1 ("pinctrl: intel: Add Intel Cannon Lake PCH-H pin controller support") Signed-off-by: Mika Westerberg Reviewed-by: Andy Shevchenko Signed-off-by: Linus Walleij --- drivers/pinctrl/intel/pinctrl-cannonlake.c | 33 +++++++++++++--------- 1 file changed, 20 insertions(+), 13 deletions(-) diff --git a/drivers/pinctrl/intel/pinctrl-cannonlake.c b/drivers/pinctrl/intel/pinctrl-cannonlake.c index 8d48371caaa2..e7f45d96b0cb 100644 --- a/drivers/pinctrl/intel/pinctrl-cannonlake.c +++ b/drivers/pinctrl/intel/pinctrl-cannonlake.c @@ -15,10 +15,11 @@ #include "pinctrl-intel.h" -#define CNL_PAD_OWN 0x020 -#define CNL_PADCFGLOCK 0x080 -#define CNL_HOSTSW_OWN 0x0b0 -#define CNL_GPI_IE 0x120 +#define CNL_PAD_OWN 0x020 +#define CNL_PADCFGLOCK 0x080 +#define CNL_LP_HOSTSW_OWN 0x0b0 +#define CNL_H_HOSTSW_OWN 0x0c0 +#define CNL_GPI_IE 0x120 #define CNL_GPP(r, s, e, g) \ { \ @@ -30,12 +31,12 @@ #define CNL_NO_GPIO -1 -#define CNL_COMMUNITY(b, s, e, g) \ +#define CNL_COMMUNITY(b, s, e, o, g) \ { \ .barno = (b), \ .padown_offset = CNL_PAD_OWN, \ .padcfglock_offset = CNL_PADCFGLOCK, \ - .hostown_offset = CNL_HOSTSW_OWN, \ + .hostown_offset = (o), \ .ie_offset = CNL_GPI_IE, \ .pin_base = (s), \ .npins = ((e) - (s) + 1), \ @@ -43,6 +44,12 @@ .ngpps = ARRAY_SIZE(g), \ } +#define CNLLP_COMMUNITY(b, s, e, g) \ + CNL_COMMUNITY(b, s, e, CNL_LP_HOSTSW_OWN, g) + +#define CNLH_COMMUNITY(b, s, e, g) \ + CNL_COMMUNITY(b, s, e, CNL_H_HOSTSW_OWN, g) + /* Cannon Lake-H */ static const struct pinctrl_pin_desc cnlh_pins[] = { /* GPP_A */ @@ -442,10 +449,10 @@ static const struct intel_function cnlh_functions[] = { }; static const struct intel_community cnlh_communities[] = { - CNL_COMMUNITY(0, 0, 50, cnlh_community0_gpps), - CNL_COMMUNITY(1, 51, 154, cnlh_community1_gpps), - CNL_COMMUNITY(2, 155, 248, cnlh_community3_gpps), - CNL_COMMUNITY(3, 249, 298, cnlh_community4_gpps), + CNLH_COMMUNITY(0, 0, 50, cnlh_community0_gpps), + CNLH_COMMUNITY(1, 51, 154, cnlh_community1_gpps), + CNLH_COMMUNITY(2, 155, 248, cnlh_community3_gpps), + CNLH_COMMUNITY(3, 249, 298, cnlh_community4_gpps), }; static const struct intel_pinctrl_soc_data cnlh_soc_data = { @@ -803,9 +810,9 @@ static const struct intel_padgroup cnllp_community4_gpps[] = { }; static const struct intel_community cnllp_communities[] = { - CNL_COMMUNITY(0, 0, 67, cnllp_community0_gpps), - CNL_COMMUNITY(1, 68, 180, cnllp_community1_gpps), - CNL_COMMUNITY(2, 181, 243, cnllp_community4_gpps), + CNLLP_COMMUNITY(0, 0, 67, cnllp_community0_gpps), + CNLLP_COMMUNITY(1, 68, 180, cnllp_community1_gpps), + CNLLP_COMMUNITY(2, 181, 243, cnllp_community4_gpps), }; static const struct intel_pinctrl_soc_data cnllp_soc_data = { From 72923e5488f0604fac8ef2c7e683fabd3b4c203b Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Mon, 24 Sep 2018 17:32:12 +0300 Subject: [PATCH 1300/1762] Revert "pinctrl: intel: Do pin translation when lock IRQ" This reverts commit 55aedef50d4d810670916d9fce4a40d5da2079e7. Commit 55aedef50d4d ("pinctrl: intel: Do pin translation when lock IRQ") added special translation from GPIO number to hardware pin number to irq_reqres/relres hooks to avoid failure when IRQs are requested. The actual failure happened inside gpiochip_lock_as_irq() because it calls gpiod_get_direction() and pinctrl-intel.c::intel_gpio_get_direction() implementation originally missed the translation so the two hooks made it work by skipping the ->get_direction() call entirely (it overwrote the default GPIOLIB provided functions). The proper fix that adds translation to GPIO callbacks was merged with commit 96147db1e1df ("pinctrl: intel: Do pin translation in other GPIO operations as well"). This allows us to use the default GPIOLIB provided functions again. In addition as find out by Benjamin Tissoires the two functions (intel_gpio_irq_reqres()/intel_gpio_irq_relres()) now cause problems of their own because they operate on pin numbers and pass that pin number to gpiochip_lock_as_irq() which actually expects a GPIO number. Link: https://bugzilla.kernel.org/show_bug.cgi?id=199911 Fixes: 55aedef50d4d ("pinctrl: intel: Do pin translation when lock IRQ") Reported-and-tested-by: Benjamin Tissoires Signed-off-by: Mika Westerberg Acked-by: Andy Shevchenko Signed-off-by: Linus Walleij --- drivers/pinctrl/intel/pinctrl-intel.c | 32 --------------------------- 1 file changed, 32 deletions(-) diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index ec8dafc94694..1ea3438ea67e 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -887,36 +887,6 @@ static const struct gpio_chip intel_gpio_chip = { .set_config = gpiochip_generic_config, }; -static int intel_gpio_irq_reqres(struct irq_data *d) -{ - struct gpio_chip *gc = irq_data_get_irq_chip_data(d); - struct intel_pinctrl *pctrl = gpiochip_get_data(gc); - int pin; - int ret; - - pin = intel_gpio_to_pin(pctrl, irqd_to_hwirq(d), NULL, NULL); - if (pin >= 0) { - ret = gpiochip_lock_as_irq(gc, pin); - if (ret) { - dev_err(pctrl->dev, "unable to lock HW IRQ %d for IRQ\n", - pin); - return ret; - } - } - return 0; -} - -static void intel_gpio_irq_relres(struct irq_data *d) -{ - struct gpio_chip *gc = irq_data_get_irq_chip_data(d); - struct intel_pinctrl *pctrl = gpiochip_get_data(gc); - int pin; - - pin = intel_gpio_to_pin(pctrl, irqd_to_hwirq(d), NULL, NULL); - if (pin >= 0) - gpiochip_unlock_as_irq(gc, pin); -} - static void intel_gpio_irq_ack(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); @@ -1132,8 +1102,6 @@ static irqreturn_t intel_gpio_irq(int irq, void *data) static struct irq_chip intel_gpio_irqchip = { .name = "intel-gpio", - .irq_request_resources = intel_gpio_irq_reqres, - .irq_release_resources = intel_gpio_irq_relres, .irq_enable = intel_gpio_irq_enable, .irq_ack = intel_gpio_irq_ack, .irq_mask = intel_gpio_irq_mask, From 8c0f9f5b309d627182d5da72a69246f58bde1026 Mon Sep 17 00:00:00 2001 From: Lubomir Rintel Date: Mon, 24 Sep 2018 13:18:34 +0100 Subject: [PATCH 1301/1762] Revert "uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name" This changes UAPI, breaking iwd and libell: ell/key.c: In function 'kernel_dh_compute': ell/key.c:205:38: error: 'struct keyctl_dh_params' has no member named 'private'; did you mean 'dh_private'? struct keyctl_dh_params params = { .private = private, ^~~~~~~ dh_private This reverts commit 8a2336e549d385bb0b46880435b411df8d8200e8. Fixes: 8a2336e549d3 ("uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name") Signed-off-by: Lubomir Rintel Signed-off-by: David Howells cc: Randy Dunlap cc: Mat Martineau cc: Stephan Mueller cc: James Morris cc: "Serge E. Hallyn" cc: Mat Martineau cc: Andrew Morton cc: Linus Torvalds cc: Signed-off-by: James Morris Signed-off-by: Greg Kroah-Hartman --- include/uapi/linux/keyctl.h | 2 +- security/keys/dh.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/include/uapi/linux/keyctl.h b/include/uapi/linux/keyctl.h index 910cc4334b21..7b8c9e19bad1 100644 --- a/include/uapi/linux/keyctl.h +++ b/include/uapi/linux/keyctl.h @@ -65,7 +65,7 @@ /* keyctl structures */ struct keyctl_dh_params { - __s32 dh_private; + __s32 private; __s32 prime; __s32 base; }; diff --git a/security/keys/dh.c b/security/keys/dh.c index 3b602a1e27fa..711e89d8c415 100644 --- a/security/keys/dh.c +++ b/security/keys/dh.c @@ -300,7 +300,7 @@ long __keyctl_dh_compute(struct keyctl_dh_params __user *params, } dh_inputs.g_size = dlen; - dlen = dh_data_from_key(pcopy.dh_private, &dh_inputs.key); + dlen = dh_data_from_key(pcopy.private, &dh_inputs.key); if (dlen < 0) { ret = dlen; goto out2; From be9e6598aeb0db70a7927d6b3bb4d3d6fb1c3e18 Mon Sep 17 00:00:00 2001 From: Lu Baolu Date: Sat, 8 Sep 2018 09:42:53 +0800 Subject: [PATCH 1302/1762] iommu/vt-d: Handle memory shortage on pasid table allocation Pasid table memory allocation could return failure due to memory shortage. Limit the pasid table size to 1MiB because current 8MiB contiguous physical memory allocation can be hard to come by. W/o a PASID table, the device could continue to work with only shared virtual memory impacted. So, let's go ahead with context mapping even the memory allocation for pasid table failed. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107783 Fixes: cc580e41260d ("iommu/vt-d: Per PCI device pasid table interfaces") Cc: Ashok Raj Cc: Jacob Pan Cc: Mika Westerberg Reported-and-tested-by: Pelton Kyle D Tested-by: Mika Westerberg Signed-off-by: Lu Baolu Signed-off-by: Joerg Roedel --- drivers/iommu/intel-iommu.c | 6 +++--- drivers/iommu/intel-pasid.h | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 5f3f10cf9d9d..bedc801b06a0 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -2540,9 +2540,9 @@ static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu, if (dev && dev_is_pci(dev) && info->pasid_supported) { ret = intel_pasid_alloc_table(dev); if (ret) { - __dmar_remove_one_dev_info(info); - spin_unlock_irqrestore(&device_domain_lock, flags); - return NULL; + pr_warn("No pasid table for %s, pasid disabled\n", + dev_name(dev)); + info->pasid_supported = 0; } } spin_unlock_irqrestore(&device_domain_lock, flags); diff --git a/drivers/iommu/intel-pasid.h b/drivers/iommu/intel-pasid.h index 1c05ed6fc5a5..1fb5e12b029a 100644 --- a/drivers/iommu/intel-pasid.h +++ b/drivers/iommu/intel-pasid.h @@ -11,7 +11,7 @@ #define __INTEL_PASID_H #define PASID_MIN 0x1 -#define PASID_MAX 0x100000 +#define PASID_MAX 0x20000 struct pasid_entry { u64 val; From cf13435b730a502e814c63c84d93db131e563f5f Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Mon, 24 Sep 2018 17:27:04 +1000 Subject: [PATCH 1303/1762] powerpc/tm: Fix userspace r13 corruption When we treclaim we store the userspace checkpointed r13 to a scratch SPR and then later save the scratch SPR to the user thread struct. Unfortunately, this doesn't work as accessing the user thread struct can take an SLB fault and the SLB fault handler will write the same scratch SPRG that now contains the userspace r13. To fix this, we store r13 to the kernel stack (which can't fault) before we access the user thread struct. Found by running P8 guest + powervm + disable_1tb_segments + TM. Seen as a random userspace segfault with r13 looking like a kernel address. Signed-off-by: Michael Neuling Reviewed-by: Breno Leitao Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/tm.S | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S index 6bffbc5affe7..183e8d75936f 100644 --- a/arch/powerpc/kernel/tm.S +++ b/arch/powerpc/kernel/tm.S @@ -176,13 +176,20 @@ _GLOBAL(tm_reclaim) std r1, PACATMSCRATCH(r13) ld r1, PACAR1(r13) - /* Store the PPR in r11 and reset to decent value */ std r11, GPR11(r1) /* Temporary stash */ + /* + * Store r13 away so we can free up the scratch SPR for the SLB fault + * handler (needed once we start accessing the thread_struct). + */ + GET_SCRATCH0(r11) + std r11, GPR13(r1) + /* Reset MSR RI so we can take SLB faults again */ li r11, MSR_RI mtmsrd r11, 1 + /* Store the PPR in r11 and reset to decent value */ mfspr r11, SPRN_PPR HMT_MEDIUM @@ -211,7 +218,7 @@ _GLOBAL(tm_reclaim) ld r4, GPR7(r1) /* user r7 */ ld r5, GPR11(r1) /* user r11 */ ld r6, GPR12(r1) /* user r12 */ - GET_SCRATCH0(8) /* user r13 */ + ld r8, GPR13(r1) /* user r13 */ std r3, GPR1(r7) std r4, GPR7(r7) std r5, GPR11(r7) From 96dc89d526ef77604376f06220e3d2931a0bfd58 Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Tue, 25 Sep 2018 19:36:47 +1000 Subject: [PATCH 1304/1762] powerpc/tm: Avoid possible userspace r1 corruption on reclaim Current we store the userspace r1 to PACATMSCRATCH before finally saving it to the thread struct. In theory an exception could be taken here (like a machine check or SLB miss) that could write PACATMSCRATCH and hence corrupt the userspace r1. The SLB fault currently doesn't touch PACATMSCRATCH, but others do. We've never actually seen this happen but it's theoretically possible. Either way, the code is fragile as it is. This patch saves r1 to the kernel stack (which can't fault) before we turn MSR[RI] back on. PACATMSCRATCH is still used but only with MSR[RI] off. We then copy r1 from the kernel stack to the thread struct once we have MSR[RI] back on. Suggested-by: Breno Leitao Signed-off-by: Michael Neuling Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/tm.S | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S index 183e8d75936f..7716374786bd 100644 --- a/arch/powerpc/kernel/tm.S +++ b/arch/powerpc/kernel/tm.S @@ -178,6 +178,13 @@ _GLOBAL(tm_reclaim) std r11, GPR11(r1) /* Temporary stash */ + /* + * Move the saved user r1 to the kernel stack in case PACATMSCRATCH is + * clobbered by an exception once we turn on MSR_RI below. + */ + ld r11, PACATMSCRATCH(r13) + std r11, GPR1(r1) + /* * Store r13 away so we can free up the scratch SPR for the SLB fault * handler (needed once we start accessing the thread_struct). @@ -214,7 +221,7 @@ _GLOBAL(tm_reclaim) SAVE_GPR(8, r7) /* user r8 */ SAVE_GPR(9, r7) /* user r9 */ SAVE_GPR(10, r7) /* user r10 */ - ld r3, PACATMSCRATCH(r13) /* user r1 */ + ld r3, GPR1(r1) /* user r1 */ ld r4, GPR7(r1) /* user r7 */ ld r5, GPR11(r1) /* user r11 */ ld r6, GPR12(r1) /* user r12 */ From 2483ef056f6e42f61cd266452e2841165dfe1b5c Mon Sep 17 00:00:00 2001 From: Srikar Dronamraju Date: Tue, 25 Sep 2018 17:55:15 +0530 Subject: [PATCH 1305/1762] powerpc/numa: Use associativity if VPHN hcall is successful Currently associativity is used to lookup node-id even if the preceding VPHN hcall failed. However this can cause CPU to be made part of the wrong node, (most likely to be node 0). This is because VPHN is not enabled on KVM guests. With 2ea6263 ("powerpc/topology: Get topology for shared processors at boot"), associativity is used to set to the wrong node. Hence KVM guest topology is broken. For example : A 4 node KVM guest before would have reported. [root@localhost ~]# numactl -H available: 4 nodes (0-3) node 0 cpus: 0 1 2 3 node 0 size: 1746 MB node 0 free: 1604 MB node 1 cpus: 4 5 6 7 node 1 size: 2044 MB node 1 free: 1765 MB node 2 cpus: 8 9 10 11 node 2 size: 2044 MB node 2 free: 1837 MB node 3 cpus: 12 13 14 15 node 3 size: 2044 MB node 3 free: 1903 MB node distances: node 0 1 2 3 0: 10 40 40 40 1: 40 10 40 40 2: 40 40 10 40 3: 40 40 40 10 Would now report: [root@localhost ~]# numactl -H available: 4 nodes (0-3) node 0 cpus: 0 2 3 4 5 6 7 8 9 10 11 12 13 14 15 node 0 size: 1746 MB node 0 free: 1244 MB node 1 cpus: node 1 size: 2044 MB node 1 free: 2032 MB node 2 cpus: 1 node 2 size: 2044 MB node 2 free: 2028 MB node 3 cpus: node 3 size: 2044 MB node 3 free: 2032 MB node distances: node 0 1 2 3 0: 10 40 40 40 1: 40 10 40 40 2: 40 40 10 40 3: 40 40 40 10 Fix this by skipping associativity lookup if the VPHN hcall failed. Fixes: 2ea626306810 ("powerpc/topology: Get topology for shared processors at boot") Signed-off-by: Srikar Dronamraju Signed-off-by: Michael Ellerman --- arch/powerpc/mm/numa.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index b5a71baedbc2..59d07bd5374a 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -1204,7 +1204,9 @@ int find_and_online_cpu_nid(int cpu) int new_nid; /* Use associativity from first thread for all siblings */ - vphn_get_associativity(cpu, associativity); + if (vphn_get_associativity(cpu, associativity)) + return cpu_to_node(cpu); + new_nid = associativity_to_nid(associativity); if (new_nid < 0 || !node_possible(new_nid)) new_nid = first_online_node; From 25e11700b54c7b6b5ebfc4361981dae12299557b Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Tue, 11 Sep 2018 14:45:03 +0300 Subject: [PATCH 1306/1762] perf script python: Fix export-to-postgresql.py occasional failure Occasional export failures were found to be caused by truncating 64-bit pointers to 32-bits. Fix by explicitly setting types for all ctype arguments and results. Signed-off-by: Adrian Hunter Cc: Jiri Olsa Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/20180911114504.28516-2-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/scripts/python/export-to-postgresql.py | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/tools/perf/scripts/python/export-to-postgresql.py b/tools/perf/scripts/python/export-to-postgresql.py index efcaf6cac2eb..e46f51b17513 100644 --- a/tools/perf/scripts/python/export-to-postgresql.py +++ b/tools/perf/scripts/python/export-to-postgresql.py @@ -204,14 +204,23 @@ from ctypes import * libpq = CDLL("libpq.so.5") PQconnectdb = libpq.PQconnectdb PQconnectdb.restype = c_void_p +PQconnectdb.argtypes = [ c_char_p ] PQfinish = libpq.PQfinish +PQfinish.argtypes = [ c_void_p ] PQstatus = libpq.PQstatus +PQstatus.restype = c_int +PQstatus.argtypes = [ c_void_p ] PQexec = libpq.PQexec PQexec.restype = c_void_p +PQexec.argtypes = [ c_void_p, c_char_p ] PQresultStatus = libpq.PQresultStatus +PQresultStatus.restype = c_int +PQresultStatus.argtypes = [ c_void_p ] PQputCopyData = libpq.PQputCopyData +PQputCopyData.restype = c_int PQputCopyData.argtypes = [ c_void_p, c_void_p, c_int ] PQputCopyEnd = libpq.PQputCopyEnd +PQputCopyEnd.restype = c_int PQputCopyEnd.argtypes = [ c_void_p, c_void_p ] sys.path.append(os.environ['PERF_EXEC_PATH'] + \ From d005efe18db0b4a123dd92ea8e77e27aee8f99fd Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Tue, 11 Sep 2018 14:45:04 +0300 Subject: [PATCH 1307/1762] perf script python: Fix export-to-sqlite.py sample columns With the "branches" export option, not all sample columns are exported. However the unwanted columns are not at the end of the tuple, as assumed by the code. Fix by taking the first 15 and last 3 values, instead of the first 18. Signed-off-by: Adrian Hunter Cc: Jiri Olsa Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/20180911114504.28516-3-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/scripts/python/export-to-sqlite.py | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/tools/perf/scripts/python/export-to-sqlite.py b/tools/perf/scripts/python/export-to-sqlite.py index f827bf77e9d2..e4bb82c8aba9 100644 --- a/tools/perf/scripts/python/export-to-sqlite.py +++ b/tools/perf/scripts/python/export-to-sqlite.py @@ -440,7 +440,11 @@ def branch_type_table(*x): def sample_table(*x): if branches: - bind_exec(sample_query, 18, x) + for xx in x[0:15]: + sample_query.addBindValue(str(xx)) + for xx in x[19:22]: + sample_query.addBindValue(str(xx)) + do_query_(sample_query) else: bind_exec(sample_query, 22, x) From b0ef5011b981ece1fde8063243a56d3038b87adb Mon Sep 17 00:00:00 2001 From: Matt Flax Date: Tue, 25 Sep 2018 16:40:18 +1000 Subject: [PATCH 1308/1762] ASoC: cs4265: Add a MIC pre. route The cs4265 driver is missing a microphone preamp enable. This patch enables/disables the microphone preamp when mic selection is made using the kcontrol. Signed-off-by: Matt Flax Reviewed-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/codecs/cs4265.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/cs4265.c b/sound/soc/codecs/cs4265.c index d9eebf6af7a8..ab27d2b94d02 100644 --- a/sound/soc/codecs/cs4265.c +++ b/sound/soc/codecs/cs4265.c @@ -221,10 +221,11 @@ static const struct snd_soc_dapm_route cs4265_audio_map[] = { {"LINEOUTR", NULL, "DAC"}, {"SPDIFOUT", NULL, "SPDIF"}, + {"Pre-amp MIC", NULL, "MICL"}, + {"Pre-amp MIC", NULL, "MICR"}, + {"ADC Mux", "MIC", "Pre-amp MIC"}, {"ADC Mux", "LINEIN", "LINEINL"}, {"ADC Mux", "LINEIN", "LINEINR"}, - {"ADC Mux", "MIC", "MICL"}, - {"ADC Mux", "MIC", "MICR"}, {"ADC", NULL, "ADC Mux"}, {"DOUT", NULL, "ADC"}, {"DAI1 Capture", NULL, "DOUT"}, From 02a9fad843d5f86b5afe5e156f09ea87fe24d9c9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andreas=20F=C3=A4rber?= Date: Tue, 25 Sep 2018 16:23:48 +0200 Subject: [PATCH 1309/1762] ASoC: dt-bindings: add max98088 audio codec MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch adds the bindings for maxim max98088/9 audio codec. Signed-off-by: Andreas Färber [m.felsch@pengutronix.de: adapt commit message] [m.felsch@pengutronix.de: adapt formatting] Signed-off-by: Marco Felsch Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/maxim,max98088.txt | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/maxim,max98088.txt diff --git a/Documentation/devicetree/bindings/sound/maxim,max98088.txt b/Documentation/devicetree/bindings/sound/maxim,max98088.txt new file mode 100644 index 000000000000..a79ad5c7af88 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/maxim,max98088.txt @@ -0,0 +1,15 @@ +MAX98088 audio CODEC + +This device supports I2C only. + +Required properties: + +- compatible: "maxim,max98088" or "maxim,max98089". +- reg: The I2C address of the device. + +Example: + +max98089: codec@10 { + compatible = "maxim,max98089"; + reg = <0x10>; +}; From 85aa0fe73edd856365d074a5aa38c614c8b2ca45 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andreas=20F=C3=A4rber?= Date: Tue, 25 Sep 2018 16:23:49 +0200 Subject: [PATCH 1310/1762] ASoC: max98088: add OF support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit MAX98088 is an older version of the MAX98089 device. Signed-off-by: Andreas Färber [m.felsch@pengutronix.de: add CONFIG_OF compile switch] [m.felsch@pengutronix.de: adapt commit message] Signed-off-by: Marco Felsch Signed-off-by: Mark Brown --- sound/soc/codecs/max98088.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/sound/soc/codecs/max98088.c b/sound/soc/codecs/max98088.c index fb515aaa54fc..9450d5d9c492 100644 --- a/sound/soc/codecs/max98088.c +++ b/sound/soc/codecs/max98088.c @@ -1742,9 +1742,19 @@ static const struct i2c_device_id max98088_i2c_id[] = { }; MODULE_DEVICE_TABLE(i2c, max98088_i2c_id); +#if defined(CONFIG_OF) +static const struct of_device_id max98088_of_match[] = { + { .compatible = "maxim,max98088" }, + { .compatible = "maxim,max98089" }, + { } +}; +MODULE_DEVICE_TABLE(of, max98088_of_match); +#endif + static struct i2c_driver max98088_i2c_driver = { .driver = { .name = "max98088", + .of_match_table = of_match_ptr(max98088_of_match), }, .probe = max98088_i2c_probe, .id_table = max98088_i2c_id, From e1e5d8a9fe737d94ccc0ccbaf0c97f69a8f3e000 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Tue, 25 Sep 2018 08:32:50 +0200 Subject: [PATCH 1311/1762] net: macb: Clean 64b dma addresses if they are not detected Clear ADDR64 dma bit in DMACFG register in case that HW_DMA_CAP_64B is not detected on 64bit system. The issue was observed when bootloader(u-boot) does not check macb feature at DCFG6 register (DAW64_OFFSET) and enabling 64bit dma support by default. Then macb driver is reading DMACFG register back and only adding 64bit dma configuration but not cleaning it out. Signed-off-by: Michal Simek Acked-by: Nicolas Ferre Signed-off-by: David S. Miller --- drivers/net/ethernet/cadence/macb_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index f1a86b422617..58b9744c4058 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -2160,6 +2160,7 @@ static void macb_configure_dma(struct macb *bp) else dmacfg &= ~GEM_BIT(TXCOEN); + dmacfg &= ~GEM_BIT(ADDR64); #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT if (bp->hw_dma_cap & HW_DMA_CAP_64B) dmacfg |= GEM_BIT(ADDR64); From 780e83c259fc33e8959fed8dfdad17e378d72b62 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 25 Sep 2018 02:12:30 -0600 Subject: [PATCH 1312/1762] xen-netback: fix input validation in xenvif_set_hash_mapping() Both len and off are frontend specified values, so we need to make sure there's no overflow when adding the two for the bounds check. We also want to avoid undefined behavior and hence use off to index into ->hash.mapping[] only after bounds checking. This at the same time allows to take care of not applying off twice for the bounds checking against vif->num_queues. It is also insufficient to bounds check copy_op.len, as this is len truncated to 16 bits. This is XSA-270 / CVE-2018-15471. Reported-by: Felix Wilhelm Signed-off-by: Jan Beulich Reviewed-by: Paul Durrant Tested-by: Paul Durrant Cc: stable@vger.kernel.org [4.7 onwards] Signed-off-by: David S. Miller --- drivers/net/xen-netback/hash.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/net/xen-netback/hash.c b/drivers/net/xen-netback/hash.c index 3c4c58b9fe76..3b6fb5b3bdb2 100644 --- a/drivers/net/xen-netback/hash.c +++ b/drivers/net/xen-netback/hash.c @@ -332,20 +332,22 @@ u32 xenvif_set_hash_mapping_size(struct xenvif *vif, u32 size) u32 xenvif_set_hash_mapping(struct xenvif *vif, u32 gref, u32 len, u32 off) { - u32 *mapping = &vif->hash.mapping[off]; + u32 *mapping = vif->hash.mapping; struct gnttab_copy copy_op = { .source.u.ref = gref, .source.domid = vif->domid, - .dest.u.gmfn = virt_to_gfn(mapping), .dest.domid = DOMID_SELF, - .dest.offset = xen_offset_in_page(mapping), - .len = len * sizeof(u32), + .len = len * sizeof(*mapping), .flags = GNTCOPY_source_gref }; - if ((off + len > vif->hash.size) || copy_op.len > XEN_PAGE_SIZE) + if ((off + len < off) || (off + len > vif->hash.size) || + len > XEN_PAGE_SIZE / sizeof(*mapping)) return XEN_NETIF_CTRL_STATUS_INVALID_PARAMETER; + copy_op.dest.u.gmfn = virt_to_gfn(mapping + off); + copy_op.dest.offset = xen_offset_in_page(mapping + off); + while (len-- != 0) if (mapping[off++] >= vif->num_queues) return XEN_NETIF_CTRL_STATUS_INVALID_PARAMETER; From 22f9cde3401077ea450b69bf9b0bba373e12e454 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 25 Sep 2018 02:13:01 -0600 Subject: [PATCH 1313/1762] xen-netback: validate queue numbers in xenvif_set_hash_mapping() Checking them before the grant copy means nothing as to the validity of the incoming request. As we shouldn't make the new data live before having validated it, introduce a second instance of the mapping array. Signed-off-by: Jan Beulich Reviewed-by: Paul Durrant Signed-off-by: David S. Miller --- drivers/net/xen-netback/common.h | 3 ++- drivers/net/xen-netback/hash.c | 20 ++++++++++++++------ drivers/net/xen-netback/interface.c | 3 ++- 3 files changed, 18 insertions(+), 8 deletions(-) diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h index a46a1e94505d..936c0b3e0ba2 100644 --- a/drivers/net/xen-netback/common.h +++ b/drivers/net/xen-netback/common.h @@ -241,8 +241,9 @@ struct xenvif_hash_cache { struct xenvif_hash { unsigned int alg; u32 flags; + bool mapping_sel; u8 key[XEN_NETBK_MAX_HASH_KEY_SIZE]; - u32 mapping[XEN_NETBK_MAX_HASH_MAPPING_SIZE]; + u32 mapping[2][XEN_NETBK_MAX_HASH_MAPPING_SIZE]; unsigned int size; struct xenvif_hash_cache cache; }; diff --git a/drivers/net/xen-netback/hash.c b/drivers/net/xen-netback/hash.c index 3b6fb5b3bdb2..dc9841ea2fff 100644 --- a/drivers/net/xen-netback/hash.c +++ b/drivers/net/xen-netback/hash.c @@ -324,7 +324,8 @@ u32 xenvif_set_hash_mapping_size(struct xenvif *vif, u32 size) return XEN_NETIF_CTRL_STATUS_INVALID_PARAMETER; vif->hash.size = size; - memset(vif->hash.mapping, 0, sizeof(u32) * size); + memset(vif->hash.mapping[vif->hash.mapping_sel], 0, + sizeof(u32) * size); return XEN_NETIF_CTRL_STATUS_SUCCESS; } @@ -332,7 +333,7 @@ u32 xenvif_set_hash_mapping_size(struct xenvif *vif, u32 size) u32 xenvif_set_hash_mapping(struct xenvif *vif, u32 gref, u32 len, u32 off) { - u32 *mapping = vif->hash.mapping; + u32 *mapping = vif->hash.mapping[!vif->hash.mapping_sel]; struct gnttab_copy copy_op = { .source.u.ref = gref, .source.domid = vif->domid, @@ -348,9 +349,8 @@ u32 xenvif_set_hash_mapping(struct xenvif *vif, u32 gref, u32 len, copy_op.dest.u.gmfn = virt_to_gfn(mapping + off); copy_op.dest.offset = xen_offset_in_page(mapping + off); - while (len-- != 0) - if (mapping[off++] >= vif->num_queues) - return XEN_NETIF_CTRL_STATUS_INVALID_PARAMETER; + memcpy(mapping, vif->hash.mapping[vif->hash.mapping_sel], + vif->hash.size * sizeof(*mapping)); if (copy_op.len != 0) { gnttab_batch_copy(©_op, 1); @@ -359,6 +359,12 @@ u32 xenvif_set_hash_mapping(struct xenvif *vif, u32 gref, u32 len, return XEN_NETIF_CTRL_STATUS_INVALID_PARAMETER; } + while (len-- != 0) + if (mapping[off++] >= vif->num_queues) + return XEN_NETIF_CTRL_STATUS_INVALID_PARAMETER; + + vif->hash.mapping_sel = !vif->hash.mapping_sel; + return XEN_NETIF_CTRL_STATUS_SUCCESS; } @@ -410,6 +416,8 @@ void xenvif_dump_hash_info(struct xenvif *vif, struct seq_file *m) } if (vif->hash.size != 0) { + const u32 *mapping = vif->hash.mapping[vif->hash.mapping_sel]; + seq_puts(m, "\nHash Mapping:\n"); for (i = 0; i < vif->hash.size; ) { @@ -422,7 +430,7 @@ void xenvif_dump_hash_info(struct xenvif *vif, struct seq_file *m) seq_printf(m, "[%4u - %4u]: ", i, i + n - 1); for (j = 0; j < n; j++, i++) - seq_printf(m, "%4u ", vif->hash.mapping[i]); + seq_printf(m, "%4u ", mapping[i]); seq_puts(m, "\n"); } diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index 92274c237200..f6ae23fc3f6b 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -162,7 +162,8 @@ static u16 xenvif_select_queue(struct net_device *dev, struct sk_buff *skb, if (size == 0) return skb_get_hash_raw(skb) % dev->real_num_tx_queues; - return vif->hash.mapping[skb_get_hash_raw(skb) % size]; + return vif->hash.mapping[vif->hash.mapping_sel] + [skb_get_hash_raw(skb) % size]; } static int xenvif_start_xmit(struct sk_buff *skb, struct net_device *dev) From 871088bf92e11efb69bbdbd537e48c0ad4f63729 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 25 Sep 2018 02:13:37 -0600 Subject: [PATCH 1314/1762] xen-netback: handle page straddling in xenvif_set_hash_mapping() There's no guarantee that the mapping array doesn't cross a page boundary. Use a second grant copy operation if necessary. Signed-off-by: Jan Beulich Acked-by: Wei Liu Reviewed-by: Paul Durrant Signed-off-by: David S. Miller --- drivers/net/xen-netback/hash.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) diff --git a/drivers/net/xen-netback/hash.c b/drivers/net/xen-netback/hash.c index dc9841ea2fff..0ccb021f1e78 100644 --- a/drivers/net/xen-netback/hash.c +++ b/drivers/net/xen-netback/hash.c @@ -334,28 +334,39 @@ u32 xenvif_set_hash_mapping(struct xenvif *vif, u32 gref, u32 len, u32 off) { u32 *mapping = vif->hash.mapping[!vif->hash.mapping_sel]; - struct gnttab_copy copy_op = { + unsigned int nr = 1; + struct gnttab_copy copy_op[2] = {{ .source.u.ref = gref, .source.domid = vif->domid, .dest.domid = DOMID_SELF, .len = len * sizeof(*mapping), .flags = GNTCOPY_source_gref - }; + }}; if ((off + len < off) || (off + len > vif->hash.size) || len > XEN_PAGE_SIZE / sizeof(*mapping)) return XEN_NETIF_CTRL_STATUS_INVALID_PARAMETER; - copy_op.dest.u.gmfn = virt_to_gfn(mapping + off); - copy_op.dest.offset = xen_offset_in_page(mapping + off); + copy_op[0].dest.u.gmfn = virt_to_gfn(mapping + off); + copy_op[0].dest.offset = xen_offset_in_page(mapping + off); + if (copy_op[0].dest.offset + copy_op[0].len > XEN_PAGE_SIZE) { + copy_op[1] = copy_op[0]; + copy_op[1].source.offset = XEN_PAGE_SIZE - copy_op[0].dest.offset; + copy_op[1].dest.u.gmfn = virt_to_gfn(mapping + off + len); + copy_op[1].dest.offset = 0; + copy_op[1].len = copy_op[0].len - copy_op[1].source.offset; + copy_op[0].len = copy_op[1].source.offset; + nr = 2; + } memcpy(mapping, vif->hash.mapping[vif->hash.mapping_sel], vif->hash.size * sizeof(*mapping)); - if (copy_op.len != 0) { - gnttab_batch_copy(©_op, 1); + if (copy_op[0].len != 0) { + gnttab_batch_copy(copy_op, nr); - if (copy_op.status != GNTST_okay) + if (copy_op[0].status != GNTST_okay || + copy_op[nr - 1].status != GNTST_okay) return XEN_NETIF_CTRL_STATUS_INVALID_PARAMETER; } From 2e9361efa707e186d91b938e44f9e326725259f7 Mon Sep 17 00:00:00 2001 From: Yunsheng Lin Date: Tue, 25 Sep 2018 10:21:55 +0100 Subject: [PATCH 1315/1762] net: hns: fix for unmapping problem when SMMU is on If SMMU is on, there is more likely that skb_shinfo(skb)->frags[i] can not send by a single BD. when this happen, the hns_nic_net_xmit_hw function map the whole data in a frags using skb_frag_dma_map, but unmap each BD' data individually when tx is done, which causes problem when SMMU is on. This patch fixes this problem by ummapping the whole data in a frags when tx is done. Signed-off-by: Yunsheng Lin Signed-off-by: Peng Li Reviewed-by: Yisen Zhuang Signed-off-by: Salil Mehta Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns/hnae.c | 2 +- drivers/net/ethernet/hisilicon/hns/hns_enet.c | 30 ++++++++++++------- 2 files changed, 20 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns/hnae.c b/drivers/net/ethernet/hisilicon/hns/hnae.c index a051e582d541..79d03f8ee7b1 100644 --- a/drivers/net/ethernet/hisilicon/hns/hnae.c +++ b/drivers/net/ethernet/hisilicon/hns/hnae.c @@ -84,7 +84,7 @@ static void hnae_unmap_buffer(struct hnae_ring *ring, struct hnae_desc_cb *cb) if (cb->type == DESC_TYPE_SKB) dma_unmap_single(ring_to_dev(ring), cb->dma, cb->length, ring_to_dma_dir(ring)); - else + else if (cb->length) dma_unmap_page(ring_to_dev(ring), cb->dma, cb->length, ring_to_dma_dir(ring)); } diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index f56855e63c96..5ce23d4b717e 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -40,9 +40,9 @@ #define SKB_TMP_LEN(SKB) \ (((SKB)->transport_header - (SKB)->mac_header) + tcp_hdrlen(SKB)) -static void fill_v2_desc(struct hnae_ring *ring, void *priv, - int size, dma_addr_t dma, int frag_end, - int buf_num, enum hns_desc_type type, int mtu) +static void fill_v2_desc_hw(struct hnae_ring *ring, void *priv, int size, + int send_sz, dma_addr_t dma, int frag_end, + int buf_num, enum hns_desc_type type, int mtu) { struct hnae_desc *desc = &ring->desc[ring->next_to_use]; struct hnae_desc_cb *desc_cb = &ring->desc_cb[ring->next_to_use]; @@ -64,7 +64,7 @@ static void fill_v2_desc(struct hnae_ring *ring, void *priv, desc_cb->type = type; desc->addr = cpu_to_le64(dma); - desc->tx.send_size = cpu_to_le16((u16)size); + desc->tx.send_size = cpu_to_le16((u16)send_sz); /* config bd buffer end */ hnae_set_bit(rrcfv, HNSV2_TXD_VLD_B, 1); @@ -133,6 +133,14 @@ static void fill_v2_desc(struct hnae_ring *ring, void *priv, ring_ptr_move_fw(ring, next_to_use); } +static void fill_v2_desc(struct hnae_ring *ring, void *priv, + int size, dma_addr_t dma, int frag_end, + int buf_num, enum hns_desc_type type, int mtu) +{ + fill_v2_desc_hw(ring, priv, size, size, dma, frag_end, + buf_num, type, mtu); +} + static const struct acpi_device_id hns_enet_acpi_match[] = { { "HISI00C1", 0 }, { "HISI00C2", 0 }, @@ -289,15 +297,15 @@ static void fill_tso_desc(struct hnae_ring *ring, void *priv, /* when the frag size is bigger than hardware, split this frag */ for (k = 0; k < frag_buf_num; k++) - fill_v2_desc(ring, priv, - (k == frag_buf_num - 1) ? + fill_v2_desc_hw(ring, priv, k == 0 ? size : 0, + (k == frag_buf_num - 1) ? sizeoflast : BD_MAX_SEND_SIZE, - dma + BD_MAX_SEND_SIZE * k, - frag_end && (k == frag_buf_num - 1) ? 1 : 0, - buf_num, - (type == DESC_TYPE_SKB && !k) ? + dma + BD_MAX_SEND_SIZE * k, + frag_end && (k == frag_buf_num - 1) ? 1 : 0, + buf_num, + (type == DESC_TYPE_SKB && !k) ? DESC_TYPE_SKB : DESC_TYPE_PAGE, - mtu); + mtu); } netdev_tx_t hns_nic_net_xmit_hw(struct net_device *ndev, From 92ef12b32feab8f277b69e9fb89ede2796777f4d Mon Sep 17 00:00:00 2001 From: Parthasarathy Bhuvaragan Date: Tue, 25 Sep 2018 18:21:58 +0200 Subject: [PATCH 1316/1762] tipc: fix flow control accounting for implicit connect In the case of implicit connect message with data > 1K, the flow control accounting is incorrect. At this state, the socket does not know the peer nodes capability and falls back to legacy flow control by return 1, however the receiver of this message will perform the new block accounting. This leads to a slack and eventually traffic disturbance. In this commit, we perform tipc_node_get_capabilities() at implicit connect and perform accounting based on the peer's capability. Signed-off-by: Parthasarathy Bhuvaragan Signed-off-by: Jon Maloy Signed-off-by: David S. Miller --- net/tipc/socket.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 3f03ddd0e35b..b6f99b021d09 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -1419,8 +1419,10 @@ static int __tipc_sendstream(struct socket *sock, struct msghdr *m, size_t dlen) /* Handle implicit connection setup */ if (unlikely(dest)) { rc = __tipc_sendmsg(sock, m, dlen); - if (dlen && (dlen == rc)) + if (dlen && dlen == rc) { + tsk->peer_caps = tipc_node_get_capabilities(net, dnode); tsk->snt_unacked = tsk_inc(tsk, dlen + msg_hdr_sz(hdr)); + } return rc; } From 69383c5913a5d74b4aa7e2b78a5cf14ebfbba538 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 25 Sep 2018 14:57:42 +0000 Subject: [PATCH 1317/1762] ovl: make symbol 'ovl_aops' static Fixes the following sparse warning: fs/overlayfs/inode.c:507:39: warning: symbol 'ovl_aops' was not declared. Should it be static? Fixes: 5b910bd615ba ("ovl: fix GPF in swapfile_activate of file from overlayfs over xfs") Signed-off-by: Wei Yongjun Signed-off-by: Miklos Szeredi --- fs/overlayfs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index b6ac545b5a32..3b7ed5d2279c 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -504,7 +504,7 @@ static const struct inode_operations ovl_special_inode_operations = { .update_time = ovl_update_time, }; -const struct address_space_operations ovl_aops = { +static const struct address_space_operations ovl_aops = { /* For O_DIRECT dentry_open() checks f_mapping->a_ops->direct_IO */ .direct_IO = noop_direct_IO, }; From a9360abd3de0aad745d25d003923d56afb28a04b Mon Sep 17 00:00:00 2001 From: Mark Bloch Date: Tue, 25 Sep 2018 11:23:55 +0300 Subject: [PATCH 1318/1762] IB/uverbs: Free uapi on destroy Make sure we free struct uverbs_api once we clean the radix tree. It was allocated by uverbs_alloc_api(). Fixes: 9ed3e5f44772 ("IB/uverbs: Build the specs into a radix tree at runtime") Reported-by: Bart Van Assche Signed-off-by: Mark Bloch Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/uverbs_uapi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/infiniband/core/uverbs_uapi.c b/drivers/infiniband/core/uverbs_uapi.c index 73ea6f0db88f..be854628a7c6 100644 --- a/drivers/infiniband/core/uverbs_uapi.c +++ b/drivers/infiniband/core/uverbs_uapi.c @@ -248,6 +248,7 @@ void uverbs_destroy_api(struct uverbs_api *uapi) kfree(rcu_dereference_protected(*slot, true)); radix_tree_iter_delete(&uapi->radix, &iter, slot); } + kfree(uapi); } struct uverbs_api *uverbs_alloc_api( From e8ef090a614292db01b5956a6f5467afbe6c5cf7 Mon Sep 17 00:00:00 2001 From: Yishai Hadas Date: Tue, 25 Sep 2018 12:11:12 +0300 Subject: [PATCH 1319/1762] IB/mlx5: Destroy the DEVX object upon error flow Upon DEVX object creation the object must be destroyed upon a follows error flow. Fixes: 7efce3691d33 ("IB/mlx5: Add obj create and destroy functionality") Signed-off-by: Yishai Hadas Reviewed-by: Artemy Kovalyov Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/mlx5/devx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c index ac116d63e466..f2f11e652dcd 100644 --- a/drivers/infiniband/hw/mlx5/devx.c +++ b/drivers/infiniband/hw/mlx5/devx.c @@ -723,6 +723,7 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)( attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE); struct mlx5_ib_ucontext *c = to_mucontext(uobj->context); struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device); + u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)]; struct devx_obj *obj; int err; @@ -754,10 +755,12 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)( err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT, cmd_out, cmd_out_len); if (err) - goto obj_free; + goto obj_destroy; return 0; +obj_destroy: + mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, sizeof(out)); obj_free: kfree(obj); return err; From 64e9e22e68512da8df3c9a7430f07621e48db3c2 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Thu, 23 Aug 2018 23:36:00 +0200 Subject: [PATCH 1320/1762] soc: fsl: qbman: qman: avoid allocating from non existing gen_pool If the qman driver didn't probe, calling qman_alloc_fqid_range, qman_alloc_pool_range or qman_alloc_cgrid_range (as done in dpaa_eth) will pass a NULL pointer to gen_pool_alloc, leading to a NULL pointer dereference. Signed-off-by: Alexandre Belloni Reviewed-by: Roy Pledge Signed-off-by: Li Yang (cherry picked from commit f72487a2788aa70c3aee1d0ebd5470de9bac953a) Signed-off-by: Olof Johansson --- drivers/soc/fsl/qbman/qman.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/soc/fsl/qbman/qman.c b/drivers/soc/fsl/qbman/qman.c index ecb22749df0b..8cc015183043 100644 --- a/drivers/soc/fsl/qbman/qman.c +++ b/drivers/soc/fsl/qbman/qman.c @@ -2729,6 +2729,9 @@ static int qman_alloc_range(struct gen_pool *p, u32 *result, u32 cnt) { unsigned long addr; + if (!p) + return -ENODEV; + addr = gen_pool_alloc(p, cnt); if (!addr) return -ENOMEM; From 96fc74333f84cfdf8d434c6c07254e215e2aad00 Mon Sep 17 00:00:00 2001 From: Zhao Qiang Date: Thu, 1 Feb 2018 14:54:32 +0800 Subject: [PATCH 1321/1762] soc: fsl: qe: Fix copy/paste bug in ucc_get_tdm_sync_shift() There is a copy and paste bug so we accidentally use the RX_ shift when we're in TX_ mode. Fixes: bb8b2062aff3 ("fsl/qe: setup clock source for TDM mode") Signed-off-by: Dan Carpenter Signed-off-by: Zhao Qiang Signed-off-by: Li Yang (cherry picked from commit 3cb31b634052ed458922e0c8e2b4b093d7fb60b9) Signed-off-by: Olof Johansson --- drivers/soc/fsl/qe/ucc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soc/fsl/qe/ucc.c b/drivers/soc/fsl/qe/ucc.c index c646d8713861..681f7d4b7724 100644 --- a/drivers/soc/fsl/qe/ucc.c +++ b/drivers/soc/fsl/qe/ucc.c @@ -626,7 +626,7 @@ static u32 ucc_get_tdm_sync_shift(enum comm_dir mode, u32 tdm_num) { u32 shift; - shift = (mode == COMM_DIR_RX) ? RX_SYNC_SHIFT_BASE : RX_SYNC_SHIFT_BASE; + shift = (mode == COMM_DIR_RX) ? RX_SYNC_SHIFT_BASE : TX_SYNC_SHIFT_BASE; shift -= tdm_num * 2; return shift; From 5c5702e259dc66e6fceed5117effab79c186e87a Mon Sep 17 00:00:00 2001 From: Parav Pandit Date: Tue, 25 Sep 2018 12:10:40 +0300 Subject: [PATCH 1322/1762] RDMA/core: Set right entry state before releasing reference Currently add_modify_gid() for IB link layer has followong issue in cache update path. When GID update event occurs, core releases reference to the GID table without updating its state and/or entry pointer. CPU-0 CPU-1 ------ ----- ib_cache_update() IPoIB ULP add_modify_gid() [..] put_gid_entry() refcnt = 0, but state = valid, entry is valid. (work item is not yet executed). ipoib_create_ah() rdma_create_ah() rdma_get_gid_attr() <-- Tries to acquire gid_attr which has refcnt = 0. This is incorrect. GID entry state and entry pointer is provides the accurate GID enty state. Such fields must be updated with rwlock to protect against readers and, such fields must be in sane state before refcount can drop to zero. Otherwise above race condition can happen leading to use-after-free situation. Following backtrace has been observed when cache update for an IB port is triggered while IPoIB ULP is creating an AH. Therefore, when updating GID entry, first mark a valid entry as invalid through state and set the barrier so that no callers can acquired the GID entry, followed by release reference to it. refcount_t: increment on 0; use-after-free. WARNING: CPU: 4 PID: 29106 at lib/refcount.c:153 refcount_inc_checked+0x30/0x50 Workqueue: ib-comp-unb-wq ib_cq_poll_work [ib_core] RIP: 0010:refcount_inc_checked+0x30/0x50 RSP: 0018:ffff8802ad36f600 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: 0000000000000008 RDI: ffffffff86710100 RBP: ffff8802d6e60a30 R08: ffffed005d67bf8b R09: ffffed005d67bf8b R10: 0000000000000001 R11: ffffed005d67bf8a R12: ffff88027620cee8 R13: ffff8802d6e60988 R14: ffff8802d6e60a78 R15: 0000000000000202 FS: 0000000000000000(0000) GS:ffff8802eb200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3ab35e5c88 CR3: 00000002ce84a000 CR4: 00000000000006e0 IPv6: ADDRCONF(NETDEV_CHANGE): ib1: link becomes ready Call Trace: rdma_get_gid_attr+0x220/0x310 [ib_core] ? lock_acquire+0x145/0x3a0 rdma_fill_sgid_attr+0x32c/0x470 [ib_core] rdma_create_ah+0x89/0x160 [ib_core] ? rdma_fill_sgid_attr+0x470/0x470 [ib_core] ? ipoib_create_ah+0x52/0x260 [ib_ipoib] ipoib_create_ah+0xf5/0x260 [ib_ipoib] ipoib_mcast_join_complete+0xbbe/0x2540 [ib_ipoib] Fixes: b150c3862d21 ("IB/core: Introduce GID entry reference counts") Signed-off-by: Parav Pandit Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/cache.c | 98 ++++++++++++++++----------------- 1 file changed, 49 insertions(+), 49 deletions(-) diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index 0bee1f4b914e..3208ad6ad540 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -337,55 +337,6 @@ static int add_roce_gid(struct ib_gid_table_entry *entry) return 0; } -/** - * add_modify_gid - Add or modify GID table entry - * - * @table: GID table in which GID to be added or modified - * @attr: Attributes of the GID - * - * Returns 0 on success or appropriate error code. It accepts zero - * GID addition for non RoCE ports for HCA's who report them as valid - * GID. However such zero GIDs are not added to the cache. - */ -static int add_modify_gid(struct ib_gid_table *table, - const struct ib_gid_attr *attr) -{ - struct ib_gid_table_entry *entry; - int ret = 0; - - /* - * Invalidate any old entry in the table to make it safe to write to - * this index. - */ - if (is_gid_entry_valid(table->data_vec[attr->index])) - put_gid_entry(table->data_vec[attr->index]); - - /* - * Some HCA's report multiple GID entries with only one valid GID, and - * leave other unused entries as the zero GID. Convert zero GIDs to - * empty table entries instead of storing them. - */ - if (rdma_is_zero_gid(&attr->gid)) - return 0; - - entry = alloc_gid_entry(attr); - if (!entry) - return -ENOMEM; - - if (rdma_protocol_roce(attr->device, attr->port_num)) { - ret = add_roce_gid(entry); - if (ret) - goto done; - } - - store_gid_entry(table, entry); - return 0; - -done: - put_gid_entry(entry); - return ret; -} - /** * del_gid - Delete GID table entry * @@ -419,6 +370,55 @@ static void del_gid(struct ib_device *ib_dev, u8 port, put_gid_entry_locked(entry); } +/** + * add_modify_gid - Add or modify GID table entry + * + * @table: GID table in which GID to be added or modified + * @attr: Attributes of the GID + * + * Returns 0 on success or appropriate error code. It accepts zero + * GID addition for non RoCE ports for HCA's who report them as valid + * GID. However such zero GIDs are not added to the cache. + */ +static int add_modify_gid(struct ib_gid_table *table, + const struct ib_gid_attr *attr) +{ + struct ib_gid_table_entry *entry; + int ret = 0; + + /* + * Invalidate any old entry in the table to make it safe to write to + * this index. + */ + if (is_gid_entry_valid(table->data_vec[attr->index])) + del_gid(attr->device, attr->port_num, table, attr->index); + + /* + * Some HCA's report multiple GID entries with only one valid GID, and + * leave other unused entries as the zero GID. Convert zero GIDs to + * empty table entries instead of storing them. + */ + if (rdma_is_zero_gid(&attr->gid)) + return 0; + + entry = alloc_gid_entry(attr); + if (!entry) + return -ENOMEM; + + if (rdma_protocol_roce(attr->device, attr->port_num)) { + ret = add_roce_gid(entry); + if (ret) + goto done; + } + + store_gid_entry(table, entry); + return 0; + +done: + put_gid_entry(entry); + return ret; +} + /* rwlock should be read locked, or lock should be held */ static int find_gid(struct ib_gid_table *table, const union ib_gid *gid, const struct ib_gid_attr *val, bool default_gid, From 974c24c5bed75b53e229a6f68a0533b6d5f48feb Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 11 Sep 2018 11:00:49 +0200 Subject: [PATCH 1323/1762] dma-mapping: add the missing ARCH_HAS_SYNC_DMA_FOR_CPU_ALL declaration The patch adding the infrastructure failed to actually add the symbol declaration, oops.. Fixes: faef87723a ("dma-noncoherent: add a arch_sync_dma_for_cpu_all hook") Signed-off-by: Christoph Hellwig Reviewed-by: Paul Burton Acked-by: Florian Fainelli Signed-off-by: Christoph Hellwig --- kernel/dma/Kconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig index 9bd54304446f..1b1d63b3634b 100644 --- a/kernel/dma/Kconfig +++ b/kernel/dma/Kconfig @@ -23,6 +23,9 @@ config ARCH_HAS_SYNC_DMA_FOR_CPU bool select NEED_DMA_MAP_STATE +config ARCH_HAS_SYNC_DMA_FOR_CPU_ALL + bool + config DMA_DIRECT_OPS bool depends on HAS_DMA From bb830add192e9d8338082c0fc2c209e23b43d865 Mon Sep 17 00:00:00 2001 From: Susobhan Dey Date: Tue, 25 Sep 2018 12:29:15 -0700 Subject: [PATCH 1324/1762] nvme: properly propagate errors in nvme_mpath_init Signed-off-by: Susobhan Dey Signed-off-by: Christoph Hellwig --- drivers/nvme/host/multipath.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index 5a9562881d4e..9fe3fff818b8 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -537,8 +537,10 @@ int nvme_mpath_init(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id) INIT_WORK(&ctrl->ana_work, nvme_ana_work); ctrl->ana_log_buf = kmalloc(ctrl->ana_log_size, GFP_KERNEL); - if (!ctrl->ana_log_buf) + if (!ctrl->ana_log_buf) { + error = -ENOMEM; goto out; + } error = nvme_read_ana_log(ctrl, true); if (error) @@ -547,7 +549,7 @@ int nvme_mpath_init(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id) out_free_ana_log_buf: kfree(ctrl->ana_log_buf); out: - return -ENOMEM; + return error; } void nvme_mpath_uninit(struct nvme_ctrl *ctrl) From 530ca2c9bd6949c72c9b5cfc330cb3dbccaa3f5b Mon Sep 17 00:00:00 2001 From: Keith Busch Date: Tue, 25 Sep 2018 10:36:20 -0600 Subject: [PATCH 1325/1762] blk-mq: Allow blocking queue tag iter callbacks A recent commit runs tag iterator callbacks under the rcu read lock, but existing callbacks do not satisfy the non-blocking requirement. The commit intended to prevent an iterator from accessing a queue that's being modified. This patch fixes the original issue by taking a queue reference instead of reading it, which allows callbacks to make blocking calls. Fixes: f5bbbbe4d6357 ("blk-mq: sync the update nr_hw_queues with blk_mq_queue_tag_busy_iter") Acked-by: Jianchao Wang Signed-off-by: Keith Busch Signed-off-by: Jens Axboe --- block/blk-mq-tag.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c index 94e1ed667b6e..41317c50a446 100644 --- a/block/blk-mq-tag.c +++ b/block/blk-mq-tag.c @@ -322,16 +322,11 @@ void blk_mq_queue_tag_busy_iter(struct request_queue *q, busy_iter_fn *fn, /* * __blk_mq_update_nr_hw_queues will update the nr_hw_queues and - * queue_hw_ctx after freeze the queue. So we could use q_usage_counter - * to avoid race with it. __blk_mq_update_nr_hw_queues will users - * synchronize_rcu to ensure all of the users go out of the critical - * section below and see zeroed q_usage_counter. + * queue_hw_ctx after freeze the queue, so we use q_usage_counter + * to avoid race with it. */ - rcu_read_lock(); - if (percpu_ref_is_zero(&q->q_usage_counter)) { - rcu_read_unlock(); + if (!percpu_ref_tryget(&q->q_usage_counter)) return; - } queue_for_each_hw_ctx(q, hctx, i) { struct blk_mq_tags *tags = hctx->tags; @@ -347,7 +342,7 @@ void blk_mq_queue_tag_busy_iter(struct request_queue *q, busy_iter_fn *fn, bt_for_each(hctx, &tags->breserved_tags, fn, priv, true); bt_for_each(hctx, &tags->bitmap_tags, fn, priv, false); } - rcu_read_unlock(); + blk_queue_exit(q); } static int bt_alloc(struct sbitmap_queue *bt, unsigned int depth, From 082dc55e3c5e559b0e6855c0de23ebd674bcc91e Mon Sep 17 00:00:00 2001 From: Amelie Delaunay Date: Thu, 20 Sep 2018 18:34:16 +0200 Subject: [PATCH 1326/1762] ARM: dts: stm32: update SPI6 dmas property on stm32mp157c Remove unused parameter from SPI6 dmas property on stm32mp157c SoC. Fixes: dc3f8c86c10d ("ARM: dts: stm32: add SPI support on stm32mp157c") Signed-off-by: Amelie Delaunay Signed-off-by: Alexandre Torgue [olof: Without this patch, SPI6 will fall back to interrupt mode with lower perfmance] Signed-off-by: Olof Johansson --- arch/arm/boot/dts/stm32mp157c.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi index 661be948ab74..185541a5b69f 100644 --- a/arch/arm/boot/dts/stm32mp157c.dtsi +++ b/arch/arm/boot/dts/stm32mp157c.dtsi @@ -1078,8 +1078,8 @@ interrupts = ; clocks = <&rcc SPI6_K>; resets = <&rcc SPI6_R>; - dmas = <&mdma1 34 0x0 0x40008 0x0 0x0 0>, - <&mdma1 35 0x0 0x40002 0x0 0x0 0>; + dmas = <&mdma1 34 0x0 0x40008 0x0 0x0>, + <&mdma1 35 0x0 0x40002 0x0 0x0>; dma-names = "rx", "tx"; status = "disabled"; }; From 94b6ddce71780575fbbf9d2c36afc8440e61a281 Mon Sep 17 00:00:00 2001 From: Parthasarathy Bhuvaragan Date: Tue, 25 Sep 2018 21:56:57 +0200 Subject: [PATCH 1327/1762] tipc: reset bearer if device carrier not ok If we detect that under lying carrier detects errors and goes down, we reset the bearer. Signed-off-by: Parthasarathy Bhuvaragan Signed-off-by: Jon Maloy Signed-off-by: David S. Miller --- net/tipc/bearer.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index 418f03d0be90..645c16052052 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -609,16 +609,18 @@ static int tipc_l2_device_event(struct notifier_block *nb, unsigned long evt, switch (evt) { case NETDEV_CHANGE: - if (netif_carrier_ok(dev)) + if (netif_carrier_ok(dev) && netif_oper_up(dev)) { + test_and_set_bit_lock(0, &b->up); break; - /* else: fall through */ - case NETDEV_UP: - test_and_set_bit_lock(0, &b->up); - break; + } + /* fall through */ case NETDEV_GOING_DOWN: clear_bit_unlock(0, &b->up); tipc_reset_bearer(net, b); break; + case NETDEV_UP: + test_and_set_bit_lock(0, &b->up); + break; case NETDEV_CHANGEMTU: if (tipc_mtu_bad(dev, 0)) { bearer_disable(net, b); From 3f32d0be6c16b902b687453c962d17eea5b8ea19 Mon Sep 17 00:00:00 2001 From: Parthasarathy Bhuvaragan Date: Tue, 25 Sep 2018 22:09:10 +0200 Subject: [PATCH 1328/1762] tipc: lock wakeup & inputq at tipc_link_reset() In tipc_link_reset() we copy the wakeup queue to input queue using skb_queue_splice_init(link->wakeupq, link->inputq). This is performed without holding any locks. The lists might be simultaneously be accessed by other cpu threads in tipc_sk_rcv(), something leading to to random missing packets. Signed-off-by: Parthasarathy Bhuvaragan Signed-off-by: Jon Maloy Signed-off-by: David S. Miller --- net/tipc/link.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/tipc/link.c b/net/tipc/link.c index b1f0bee54eac..26cc033ee167 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -841,9 +841,14 @@ void tipc_link_reset(struct tipc_link *l) l->in_session = false; l->session++; l->mtu = l->advertised_mtu; + spin_lock_bh(&l->wakeupq.lock); + spin_lock_bh(&l->inputq->lock); + skb_queue_splice_init(&l->wakeupq, l->inputq); + spin_unlock_bh(&l->inputq->lock); + spin_unlock_bh(&l->wakeupq.lock); + __skb_queue_purge(&l->transmq); __skb_queue_purge(&l->deferdq); - skb_queue_splice_init(&l->wakeupq, l->inputq); __skb_queue_purge(&l->backlogq); l->backlog[TIPC_LOW_IMPORTANCE].len = 0; l->backlog[TIPC_MEDIUM_IMPORTANCE].len = 0; From 5ebb1bc2d63d90dd204169e21fd7a0b4bb8c776e Mon Sep 17 00:00:00 2001 From: Arindam Nath Date: Tue, 18 Sep 2018 15:40:58 +0530 Subject: [PATCH 1329/1762] iommu/amd: Return devid as alias for ACPI HID devices ACPI HID devices do not actually have an alias for them in the IVRS. But dev_data->alias is still used for indexing into the IOMMU device table for devices being handled by the IOMMU. So for ACPI HID devices, we simply return the corresponding devid as an alias, as parsed from IVRS table. Signed-off-by: Arindam Nath Fixes: 2bf9a0a12749 ('iommu/amd: Add iommu support for ACPI HID devices') Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 4e04fff23977..73e47d93e7a0 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -246,7 +246,13 @@ static u16 get_alias(struct device *dev) /* The callers make sure that get_device_id() does not fail here */ devid = get_device_id(dev); + + /* For ACPI HID devices, we simply return the devid as such */ + if (!dev_is_pci(dev)) + return devid; + ivrs_alias = amd_iommu_alias_table[devid]; + pci_for_each_dma_alias(pdev, __last_alias, &pci_alias); if (ivrs_alias == pci_alias) From 8105f9b8a8879bff7f1d43d0720c993a99c9d135 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 22 Sep 2018 18:35:31 +0200 Subject: [PATCH 1330/1762] mac80211: allocate TXQs for active monitor interfaces Monitor mode interfaces with the active flag are passed down to the driver. Drivers using TXQ expect that all interfaces have allocated TXQs before they get added. Fixes: 79af1f866193d ("mac80211: avoid allocating TXQs that won't be used") Cc: stable@vger.kernel.org Reported-by: Catrinel Catrinescu Signed-off-by: Felix Fietkau Signed-off-by: Johannes Berg --- net/mac80211/iface.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 5e6cf2cee965..5836ddeac9e3 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -1756,7 +1756,8 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, if (local->ops->wake_tx_queue && type != NL80211_IFTYPE_AP_VLAN && - type != NL80211_IFTYPE_MONITOR) + (type != NL80211_IFTYPE_MONITOR || + (params->flags & MONITOR_FLAG_ACTIVE))) txq_size += sizeof(struct txq_info) + local->hw.txq_data_size; From 0bcbf6518456f63038a290bd359237d31f6f8ac3 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 23 Sep 2018 11:59:13 -0700 Subject: [PATCH 1331/1762] cfg80211: fix reg_query_regdb_wmm kernel-doc Drop @ptr from kernel-doc for function reg_query_regdb_wmm(). This function parameter was recently removed so update the kernel-doc to match that and remove the kernel-doc warnings. Removes 109 occurrences of this warning message: ../include/net/cfg80211.h:4869: warning: Excess function parameter 'ptr' description in 'reg_query_regdb_wmm' Fixes: 38cb87ee47fb ("cfg80211: make wmm_rule part of the reg_rule structure") Signed-off-by: Randy Dunlap Cc: Stanislaw Gruszka Cc: Johannes Berg Cc: Kalle Valo Cc: linux-wireless@vger.kernel.org Signed-off-by: Johannes Berg --- include/net/cfg80211.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 8ebabc9873d1..4de121e24ce5 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -4852,8 +4852,6 @@ const char *reg_initiator_name(enum nl80211_reg_initiator initiator); * * @alpha2: the ISO/IEC 3166 alpha2 wmm rule to be queried. * @freq: the freqency(in MHz) to be queried. - * @ptr: pointer where the regdb wmm data is to be stored (or %NULL if - * irrelevant). This can be used later for deduplication. * @rule: pointer to store the wmm rule from the regulatory db. * * Self-managed wireless drivers can use this function to query From 30fe6d50eb088783c8729c7d930f65296b2b3fa7 Mon Sep 17 00:00:00 2001 From: Masashi Honma Date: Tue, 25 Sep 2018 11:15:00 +0900 Subject: [PATCH 1332/1762] nl80211: Fix possible Spectre-v1 for NL80211_TXRATE_HT Use array_index_nospec() to sanitize ridx with respect to speculation. Signed-off-by: Masashi Honma Signed-off-by: Johannes Berg --- net/wireless/nl80211.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 4b8ec659e797..bd26230de63e 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -3756,6 +3756,7 @@ static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, return false; /* check availability */ + ridx = array_index_nospec(ridx, IEEE80211_HT_MCS_MASK_LEN); if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) mcs[ridx] |= rbit; else From 628980e5c8f038f730582c6ee50b7410741cd96e Mon Sep 17 00:00:00 2001 From: Martin Willi Date: Tue, 25 Sep 2018 09:41:13 +0200 Subject: [PATCH 1333/1762] mac80211_hwsim: fix locking when iterating radios during ns exit The cleanup of radios during namespace exit has recently been reworked to directly delete a radio while temporarily releasing the spinlock, fixing a race condition between the work-queue execution and namespace exits. However, the temporary unlock allows unsafe modifications on the iterated list, resulting in a potential crash when continuing the iteration of additional radios. Move radios about to destroy to a temporary list, and clean that up after releasing the spinlock once iteration is complete. Fixes: 8cfd36a0b53a ("mac80211_hwsim: fix use-after-free bug in hwsim_exit_net") Signed-off-by: Martin Willi Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 1068757ec42e..f1150d321875 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -3646,6 +3646,7 @@ static __net_init int hwsim_init_net(struct net *net) static void __net_exit hwsim_exit_net(struct net *net) { struct mac80211_hwsim_data *data, *tmp; + LIST_HEAD(list); spin_lock_bh(&hwsim_radio_lock); list_for_each_entry_safe(data, tmp, &hwsim_radios, list) { @@ -3656,17 +3657,19 @@ static void __net_exit hwsim_exit_net(struct net *net) if (data->netgroup == hwsim_net_get_netgroup(&init_net)) continue; - list_del(&data->list); + list_move(&data->list, &list); rhashtable_remove_fast(&hwsim_radios_rht, &data->rht, hwsim_rht_params); hwsim_radios_generation++; - spin_unlock_bh(&hwsim_radio_lock); + } + spin_unlock_bh(&hwsim_radio_lock); + + list_for_each_entry_safe(data, tmp, &list, list) { + list_del(&data->list); mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), NULL); - spin_lock_bh(&hwsim_radio_lock); } - spin_unlock_bh(&hwsim_radio_lock); ida_simple_remove(&hwsim_netgroup_ida, hwsim_net_get_netgroup(net)); } From f1c47eb61d52379de5747d02bb36be20d7a2d0d3 Mon Sep 17 00:00:00 2001 From: Martin Willi Date: Tue, 25 Sep 2018 09:41:14 +0200 Subject: [PATCH 1334/1762] mac80211_hwsim: fix race in radio destruction from netlink notifier The asynchronous destruction from a work-queue of radios tagged with destroy-on-close may race with the owning namespace about to exit, resulting in potential use-after-free of that namespace. Instead of using a work-queue, move radios about to destroy to a temporary list, which can be worked on synchronously after releasing the lock. This should be safe to do from the netlink socket notifier, as the namespace is guaranteed to not get released. Signed-off-by: Martin Willi Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index f1150d321875..6fccb4d717db 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -520,7 +520,6 @@ struct mac80211_hwsim_data { int channels, idx; bool use_chanctx; bool destroy_on_close; - struct work_struct destroy_work; u32 portid; char alpha2[2]; const struct ieee80211_regdomain *regd; @@ -3565,30 +3564,27 @@ static struct genl_family hwsim_genl_family __ro_after_init = { .n_mcgrps = ARRAY_SIZE(hwsim_mcgrps), }; -static void destroy_radio(struct work_struct *work) -{ - struct mac80211_hwsim_data *data = - container_of(work, struct mac80211_hwsim_data, destroy_work); - - hwsim_radios_generation++; - mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), NULL); -} - static void remove_user_radios(u32 portid) { struct mac80211_hwsim_data *entry, *tmp; + LIST_HEAD(list); spin_lock_bh(&hwsim_radio_lock); list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) { if (entry->destroy_on_close && entry->portid == portid) { - list_del(&entry->list); + list_move(&entry->list, &list); rhashtable_remove_fast(&hwsim_radios_rht, &entry->rht, hwsim_rht_params); - INIT_WORK(&entry->destroy_work, destroy_radio); - queue_work(hwsim_wq, &entry->destroy_work); + hwsim_radios_generation++; } } spin_unlock_bh(&hwsim_radio_lock); + + list_for_each_entry_safe(entry, tmp, &list, list) { + list_del(&entry->list); + mac80211_hwsim_del_radio(entry, wiphy_name(entry->hw->wiphy), + NULL); + } } static int mac80211_hwsim_netlink_notify(struct notifier_block *nb, From 28ef8b49a338dc1844e86b7954cfffc7dfa2660a Mon Sep 17 00:00:00 2001 From: Martin Willi Date: Tue, 25 Sep 2018 09:51:02 +0200 Subject: [PATCH 1335/1762] mac80211_hwsim: do not omit multicast announce of first added radio The allocation of hwsim radio identifiers uses a post-increment from 0, so the first radio has idx 0. This idx is explicitly excluded from multicast announcements ever since, but it is unclear why. Drop that idx check and announce the first radio as well. This makes userspace happy if it relies on these events. Signed-off-by: Martin Willi Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 6fccb4d717db..07442ada6dd0 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -2934,8 +2934,7 @@ static int mac80211_hwsim_new_radio(struct genl_info *info, hwsim_radios_generation++; spin_unlock_bh(&hwsim_radio_lock); - if (idx > 0) - hwsim_mcast_new_radio(idx, info, param); + hwsim_mcast_new_radio(idx, info, param); return idx; From cb28c306b93b71f2741ce1a5a66289db26715f4d Mon Sep 17 00:00:00 2001 From: Matias Karhumaa Date: Wed, 26 Sep 2018 09:13:46 +0300 Subject: [PATCH 1336/1762] Bluetooth: SMP: fix crash in unpairing In case unpair_device() was called through mgmt interface at the same time when pairing was in progress, Bluetooth kernel module crash was seen. [ 600.351225] general protection fault: 0000 [#1] SMP PTI [ 600.351235] CPU: 1 PID: 11096 Comm: btmgmt Tainted: G OE 4.19.0-rc1+ #1 [ 600.351238] Hardware name: Dell Inc. Latitude E5440/08RCYC, BIOS A18 05/14/2017 [ 600.351272] RIP: 0010:smp_chan_destroy.isra.10+0xce/0x2c0 [bluetooth] [ 600.351276] Code: c0 0f 84 b4 01 00 00 80 78 28 04 0f 84 53 01 00 00 4d 85 ed 0f 85 ab 00 00 00 48 8b 08 48 8b 50 08 be 10 00 00 00 48 89 51 08 <48> 89 0a 48 b9 00 02 00 00 00 00 ad de 48 89 48 08 48 8b 83 00 01 [ 600.351279] RSP: 0018:ffffa9be839b3b50 EFLAGS: 00010246 [ 600.351282] RAX: ffff9c999ac565a0 RBX: ffff9c9996e98c00 RCX: ffff9c999aa28b60 [ 600.351285] RDX: dead000000000200 RSI: 0000000000000010 RDI: ffff9c999e403500 [ 600.351287] RBP: ffffa9be839b3b70 R08: 0000000000000000 R09: ffffffff92a25c00 [ 600.351290] R10: ffffa9be839b3ae8 R11: 0000000000000001 R12: ffff9c995375b800 [ 600.351292] R13: 0000000000000000 R14: ffff9c99619a5000 R15: ffff9c9962a01c00 [ 600.351295] FS: 00007fb2be27c700(0000) GS:ffff9c999e880000(0000) knlGS:0000000000000000 [ 600.351298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 600.351300] CR2: 00007fb2bdadbad0 CR3: 000000041c328001 CR4: 00000000001606e0 [ 600.351302] Call Trace: [ 600.351325] smp_failure+0x4f/0x70 [bluetooth] [ 600.351345] smp_cancel_pairing+0x74/0x80 [bluetooth] [ 600.351370] unpair_device+0x1c1/0x330 [bluetooth] [ 600.351399] hci_sock_sendmsg+0x960/0x9f0 [bluetooth] [ 600.351409] ? apparmor_socket_sendmsg+0x1e/0x20 [ 600.351417] sock_sendmsg+0x3e/0x50 [ 600.351422] sock_write_iter+0x85/0xf0 [ 600.351429] do_iter_readv_writev+0x12b/0x1b0 [ 600.351434] do_iter_write+0x87/0x1a0 [ 600.351439] vfs_writev+0x98/0x110 [ 600.351443] ? ep_poll+0x16d/0x3d0 [ 600.351447] ? ep_modify+0x73/0x170 [ 600.351451] do_writev+0x61/0xf0 [ 600.351455] ? do_writev+0x61/0xf0 [ 600.351460] __x64_sys_writev+0x1c/0x20 [ 600.351465] do_syscall_64+0x5a/0x110 [ 600.351471] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 600.351474] RIP: 0033:0x7fb2bdb62fe0 [ 600.351477] Code: 73 01 c3 48 8b 0d b8 6e 2c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 69 c7 2c 00 00 75 10 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 de 80 01 00 48 89 04 24 [ 600.351479] RSP: 002b:00007ffe062cb8f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 600.351484] RAX: ffffffffffffffda RBX: 000000000255b3d0 RCX: 00007fb2bdb62fe0 [ 600.351487] RDX: 0000000000000001 RSI: 00007ffe062cb920 RDI: 0000000000000004 [ 600.351490] RBP: 00007ffe062cb920 R08: 000000000255bd80 R09: 0000000000000000 [ 600.351494] R10: 0000000000000353 R11: 0000000000000246 R12: 0000000000000001 [ 600.351497] R13: 00007ffe062cbbe0 R14: 0000000000000000 R15: 0000000000000000 [ 600.351501] Modules linked in: algif_hash algif_skcipher af_alg cmac ipt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat nf_nat_ipv4 xt_addrtype iptable_filter ip_tables xt_conntrack x_tables nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c br_netfilter bridge stp llc overlay arc4 nls_iso8859_1 dm_crypt intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp dell_laptop kvm_intel crct10dif_pclmul dell_smm_hwmon crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd cryptd glue_helper intel_cstate intel_rapl_perf uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev media hid_multitouch input_leds joydev serio_raw dell_wmi snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic dell_smbios dcdbas sparse_keymap [ 600.351569] snd_hda_intel btusb snd_hda_codec btrtl btbcm btintel snd_hda_core bluetooth(OE) snd_hwdep snd_pcm iwlmvm ecdh_generic wmi_bmof dell_wmi_descriptor snd_seq_midi mac80211 snd_seq_midi_event lpc_ich iwlwifi snd_rawmidi snd_seq snd_seq_device snd_timer cfg80211 snd soundcore mei_me mei dell_rbtn dell_smo8800 mac_hid parport_pc ppdev lp parport autofs4 hid_generic usbhid hid i915 nouveau kvmgt vfio_mdev mdev vfio_iommu_type1 vfio kvm irqbypass i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt mxm_wmi psmouse ahci sdhci_pci cqhci libahci fb_sys_fops sdhci drm e1000e video wmi [ 600.351637] ---[ end trace e49e9f1df09c94fb ]--- [ 600.351664] RIP: 0010:smp_chan_destroy.isra.10+0xce/0x2c0 [bluetooth] [ 600.351666] Code: c0 0f 84 b4 01 00 00 80 78 28 04 0f 84 53 01 00 00 4d 85 ed 0f 85 ab 00 00 00 48 8b 08 48 8b 50 08 be 10 00 00 00 48 89 51 08 <48> 89 0a 48 b9 00 02 00 00 00 00 ad de 48 89 48 08 48 8b 83 00 01 [ 600.351669] RSP: 0018:ffffa9be839b3b50 EFLAGS: 00010246 [ 600.351672] RAX: ffff9c999ac565a0 RBX: ffff9c9996e98c00 RCX: ffff9c999aa28b60 [ 600.351674] RDX: dead000000000200 RSI: 0000000000000010 RDI: ffff9c999e403500 [ 600.351676] RBP: ffffa9be839b3b70 R08: 0000000000000000 R09: ffffffff92a25c00 [ 600.351679] R10: ffffa9be839b3ae8 R11: 0000000000000001 R12: ffff9c995375b800 [ 600.351681] R13: 0000000000000000 R14: ffff9c99619a5000 R15: ffff9c9962a01c00 [ 600.351684] FS: 00007fb2be27c700(0000) GS:ffff9c999e880000(0000) knlGS:0000000000000000 [ 600.351686] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 600.351689] CR2: 00007fb2bdadbad0 CR3: 000000041c328001 CR4: 00000000001606e0 Crash happened because list_del_rcu() was called twice for smp->ltk. This was possible if unpair_device was called right after ltk was generated but before keys were distributed. In this commit smp_cancel_pairing was refactored to cancel pairing if it is in progress and otherwise just removes keys. Once keys are removed from rcu list, pointers to smp context's keys are set to NULL to make sure removed list items are not accessed later. This commit also adjusts the functionality of mgmt unpair_device() little bit. Previously pairing was canceled only if pairing was in state that keys were already generated. With this commit unpair_device() cancels pairing already in earlier states. Bug was found by fuzzing kernel SMP implementation using Synopsys Defensics. Reported-by: Pekka Oikarainen Signed-off-by: Matias Karhumaa Signed-off-by: Johan Hedberg --- net/bluetooth/mgmt.c | 7 ++----- net/bluetooth/smp.c | 29 +++++++++++++++++++++++++---- net/bluetooth/smp.h | 3 ++- 3 files changed, 29 insertions(+), 10 deletions(-) diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 3bdc8f3ca259..ccce954f8146 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -2434,9 +2434,8 @@ static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data, /* LE address type */ addr_type = le_addr_type(cp->addr.type); - hci_remove_irk(hdev, &cp->addr.bdaddr, addr_type); - - err = hci_remove_ltk(hdev, &cp->addr.bdaddr, addr_type); + /* Abort any ongoing SMP pairing. Removes ltk and irk if they exist. */ + err = smp_cancel_and_remove_pairing(hdev, &cp->addr.bdaddr, addr_type); if (err < 0) { err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE, MGMT_STATUS_NOT_PAIRED, &rp, @@ -2450,8 +2449,6 @@ static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data, goto done; } - /* Abort any ongoing SMP pairing */ - smp_cancel_pairing(conn); /* Defer clearing up the connection parameters until closing to * give a chance of keeping them if a repairing happens. diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 3a7b0773536b..73f7211d0431 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -2422,30 +2422,51 @@ unlock: return ret; } -void smp_cancel_pairing(struct hci_conn *hcon) +int smp_cancel_and_remove_pairing(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 addr_type) { - struct l2cap_conn *conn = hcon->l2cap_data; + struct hci_conn *hcon; + struct l2cap_conn *conn; struct l2cap_chan *chan; struct smp_chan *smp; + int err; + err = hci_remove_ltk(hdev, bdaddr, addr_type); + hci_remove_irk(hdev, bdaddr, addr_type); + + hcon = hci_conn_hash_lookup_le(hdev, bdaddr, addr_type); + if (!hcon) + goto done; + + conn = hcon->l2cap_data; if (!conn) - return; + goto done; chan = conn->smp; if (!chan) - return; + goto done; l2cap_chan_lock(chan); smp = chan->data; if (smp) { + /* Set keys to NULL to make sure smp_failure() does not try to + * remove and free already invalidated rcu list entries. */ + smp->ltk = NULL; + smp->slave_ltk = NULL; + smp->remote_irk = NULL; + if (test_bit(SMP_FLAG_COMPLETE, &smp->flags)) smp_failure(conn, 0); else smp_failure(conn, SMP_UNSPECIFIED); + err = 0; } l2cap_chan_unlock(chan); + +done: + return err; } static int smp_cmd_encrypt_info(struct l2cap_conn *conn, struct sk_buff *skb) diff --git a/net/bluetooth/smp.h b/net/bluetooth/smp.h index 0ff6247eaa6c..121edadd5f8d 100644 --- a/net/bluetooth/smp.h +++ b/net/bluetooth/smp.h @@ -181,7 +181,8 @@ enum smp_key_pref { }; /* SMP Commands */ -void smp_cancel_pairing(struct hci_conn *hcon); +int smp_cancel_and_remove_pairing(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 addr_type); bool smp_sufficient_security(struct hci_conn *hcon, u8 sec_level, enum smp_key_pref key_pref); int smp_conn_security(struct hci_conn *hcon, __u8 sec_level); From 337fe9f5c1e7de1f391c6a692531379d2aa2ee11 Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Wed, 26 Sep 2018 02:17:03 -0500 Subject: [PATCH 1337/1762] drm/syncobj: Don't leak fences when WAIT_FOR_SUBMIT is set We attempt to get fences earlier in the hopes that everything will already have fences and no callbacks will be needed. If we do succeed in getting a fence, getting one a second time will result in a duplicate ref with no unref. This is causing memory leaks in Vulkan applications that create a lot of fences; playing for a few hours can, apparently, bring down the system. Cc: stable@vger.kernel.org Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107899 Reviewed-by: Chris Wilson Signed-off-by: Jason Ekstrand Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20180926071703.15257-1-jason.ekstrand@intel.com --- drivers/gpu/drm/drm_syncobj.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c index adb3cb27d31e..759278fef35a 100644 --- a/drivers/gpu/drm/drm_syncobj.c +++ b/drivers/gpu/drm/drm_syncobj.c @@ -97,6 +97,8 @@ static int drm_syncobj_fence_get_or_add_callback(struct drm_syncobj *syncobj, { int ret; + WARN_ON(*fence); + *fence = drm_syncobj_fence_get(syncobj); if (*fence) return 1; @@ -743,6 +745,9 @@ static signed long drm_syncobj_array_wait_timeout(struct drm_syncobj **syncobjs, if (flags & DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT) { for (i = 0; i < count; ++i) { + if (entries[i].fence) + continue; + drm_syncobj_fence_get_or_add_callback(syncobjs[i], &entries[i].fence, &entries[i].syncobj_cb, From d85536cde91fcfed6fb8d983783bd2b92c843939 Mon Sep 17 00:00:00 2001 From: Lubomir Rintel Date: Wed, 26 Sep 2018 18:11:22 +0200 Subject: [PATCH 1338/1762] pxa168fb: prepare the clock Add missing prepare/unprepare operations for fbi->clk, this fixes following kernel warning: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:874 clk_core_enable+0x2c/0x1b0 Enabling unprepared disp0_clk Modules linked in: CPU: 0 PID: 1 Comm: swapper Not tainted 4.18.0-rc8-00032-g02b43ddd4f21-dirty #25 Hardware name: Marvell MMP2 (Device Tree Support) [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [] (show_stack) from [] (__warn+0xd8/0xf0) [] (__warn) from [] (warn_slowpath_fmt+0x44/0x6c) [] (warn_slowpath_fmt) from [] (clk_core_enable+0x2c/0x1b0) [] (clk_core_enable) from [] (clk_core_enable_lock+0x18/0x2c) [] (clk_core_enable_lock) from [] (pxa168fb_probe+0x464/0x6ac) [] (pxa168fb_probe) from [] (platform_drv_probe+0x48/0x94) [] (platform_drv_probe) from [] (driver_probe_device+0x328/0x470) [] (driver_probe_device) from [] (__driver_attach+0xb0/0x124) [] (__driver_attach) from [] (bus_for_each_dev+0x64/0xa0) [] (bus_for_each_dev) from [] (bus_add_driver+0x1b8/0x230) [] (bus_add_driver) from [] (driver_register+0xac/0xf0) [] (driver_register) from [] (do_one_initcall+0xb8/0x1f0) [] (do_one_initcall) from [] (kernel_init_freeable+0x294/0x2e0) [] (kernel_init_freeable) from [] (kernel_init+0x8/0x10c) [] (kernel_init) from [] (ret_from_fork+0x14/0x2c) Exception stack(0xd008bfb0 to 0xd008bff8) bfa0: 00000000 00000000 00000000 00000000 bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 ---[ end trace c0af40f9e2ed7cb4 ]--- Signed-off-by: Lubomir Rintel [b.zolnierkie: enhance patch description a bit] Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/video/fbdev/pxa168fb.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/video/fbdev/pxa168fb.c b/drivers/video/fbdev/pxa168fb.c index def3a501acd6..d059d04c63ac 100644 --- a/drivers/video/fbdev/pxa168fb.c +++ b/drivers/video/fbdev/pxa168fb.c @@ -712,7 +712,7 @@ static int pxa168fb_probe(struct platform_device *pdev) /* * enable controller clock */ - clk_enable(fbi->clk); + clk_prepare_enable(fbi->clk); pxa168fb_set_par(info); @@ -767,7 +767,7 @@ static int pxa168fb_probe(struct platform_device *pdev) failed_free_cmap: fb_dealloc_cmap(&info->cmap); failed_free_clk: - clk_disable(fbi->clk); + clk_disable_unprepare(fbi->clk); failed_free_fbmem: dma_free_coherent(fbi->dev, info->fix.smem_len, info->screen_base, fbi->fb_start_dma); @@ -807,7 +807,7 @@ static int pxa168fb_remove(struct platform_device *pdev) dma_free_wc(fbi->dev, PAGE_ALIGN(info->fix.smem_len), info->screen_base, info->fix.smem_start); - clk_disable(fbi->clk); + clk_disable_unprepare(fbi->clk); framebuffer_release(info); From 1bafcbf59fed92af58955024452f45430d3898c5 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Wed, 26 Sep 2018 18:11:22 +0200 Subject: [PATCH 1339/1762] fbdev/omapfb: fix omapfb_memory_read infoleak OMAPFB_MEMORY_READ ioctl reads pixels from the LCD's memory and copies them to a userspace buffer. The code has two issues: - The user provided width and height could be large enough to overflow the calculations - The copy_to_user() can copy uninitialized memory to the userspace, which might contain sensitive kernel information. Fix these by limiting the width & height parameters, and only copying the amount of data that we actually received from the LCD. Signed-off-by: Tomi Valkeinen Reported-by: Jann Horn Cc: stable@vger.kernel.org Cc: security@kernel.org Cc: Will Deacon Cc: Jann Horn Cc: Tony Lindgren Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c b/drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c index ef69273074ba..a3edb20ea4c3 100644 --- a/drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c +++ b/drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c @@ -496,6 +496,9 @@ static int omapfb_memory_read(struct fb_info *fbi, if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size)) return -EFAULT; + if (mr->w > 4096 || mr->h > 4096) + return -EINVAL; + if (mr->w * mr->h * 3 > mr->buffer_size) return -EINVAL; @@ -509,7 +512,7 @@ static int omapfb_memory_read(struct fb_info *fbi, mr->x, mr->y, mr->w, mr->h); if (r > 0) { - if (copy_to_user(mr->buffer, buf, mr->buffer_size)) + if (copy_to_user(mr->buffer, buf, r)) r = -EFAULT; } From cf7389b8095fabae076ef28b49dc3059b9eb899f Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 26 Sep 2018 18:11:22 +0200 Subject: [PATCH 1340/1762] efifb: BGRT: Add nobgrt option In some setups restoring the BGRT logo is undesirable, allow passing video=efifb:nobgrt on the kernel commandline to disable it. Reported-by: David Herrmann Signed-off-by: Hans de Goede Reviewed-by: David Herrmann Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/video/fbdev/efifb.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c index 3946649b85c8..ba906876cc45 100644 --- a/drivers/video/fbdev/efifb.c +++ b/drivers/video/fbdev/efifb.c @@ -42,6 +42,7 @@ struct bmp_dib_header { u32 colors_important; } __packed; +static bool use_bgrt = true; static bool request_mem_succeeded = false; static u64 mem_flags = EFI_MEMORY_WC | EFI_MEMORY_UC; @@ -160,6 +161,9 @@ static void efifb_show_boot_graphics(struct fb_info *info) void *bgrt_image = NULL; u8 *dst = info->screen_base; + if (!use_bgrt) + return; + if (!bgrt_tab.image_address) { pr_info("efifb: No BGRT, not showing boot graphics\n"); return; @@ -290,6 +294,8 @@ static int efifb_setup(char *options) screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0); else if (!strcmp(this_opt, "nowc")) mem_flags &= ~EFI_MEMORY_WC; + else if (!strcmp(this_opt, "nobgrt")) + use_bgrt = false; } } From 676709b1bcb513c6acf0bb7698dffcc53c2a8970 Mon Sep 17 00:00:00 2001 From: Adam Jackson Date: Wed, 26 Sep 2018 18:11:23 +0200 Subject: [PATCH 1341/1762] uvesafb: Fix URLs in the documentation Signed-off-by: Adam Jackson Reviewed-by: Randy Dunlap Signed-off-by: Bartlomiej Zolnierkiewicz --- Documentation/fb/uvesafb.txt | 5 +++-- MAINTAINERS | 2 +- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/Documentation/fb/uvesafb.txt b/Documentation/fb/uvesafb.txt index f6362d88763b..aa924196c366 100644 --- a/Documentation/fb/uvesafb.txt +++ b/Documentation/fb/uvesafb.txt @@ -15,7 +15,8 @@ than x86. Check the v86d documentation for a list of currently supported arches. v86d source code can be downloaded from the following website: - http://dev.gentoo.org/~spock/projects/uvesafb + + https://github.com/mjanusz/v86d Please refer to the v86d documentation for detailed configuration and installation instructions. @@ -177,7 +178,7 @@ from the Video BIOS if you set pixclock to 0 in fb_var_screeninfo. -- Michal Januszewski - Last updated: 2009-03-30 + Last updated: 2017-10-10 Documentation of the uvesafb options is loosely based on vesafb.txt. diff --git a/MAINTAINERS b/MAINTAINERS index 02a39617ec82..97e565f2b54a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15389,7 +15389,7 @@ S: Maintained UVESAFB DRIVER M: Michal Januszewski L: linux-fbdev@vger.kernel.org -W: http://dev.gentoo.org/~spock/projects/uvesafb/ +W: https://github.com/mjanusz/v86d S: Maintained F: Documentation/fb/uvesafb.txt F: drivers/video/fbdev/uvesafb.* From 7c968791f7753bf0e52a21729498509ea3dd751b Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Wed, 26 Sep 2018 18:50:54 +0200 Subject: [PATCH 1342/1762] video/fbdev/stifb: Fix spelling mistake in fall-through annotation Replace "fall though" with a proper "fall through" annotation. This fix is part of the ongoing efforts to enabling -Wimplicit-fallthrough Addresses-Coverity-ID: 402013 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva Cc: "James E.J. Bottomley" Cc: Helge Deller Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/video/fbdev/stifb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c index 045e8afe398b..9e88e3f594c2 100644 --- a/drivers/video/fbdev/stifb.c +++ b/drivers/video/fbdev/stifb.c @@ -1157,7 +1157,7 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref) dev_name); goto out_err0; } - /* fall though */ + /* fall through */ case S9000_ID_ARTIST: case S9000_ID_HCRX: case S9000_ID_TIMBER: From f188b99f0b2d33794b4af8a225f95d1e968c0a3f Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Wed, 26 Sep 2018 15:39:28 -0500 Subject: [PATCH 1343/1762] ACPI / hotplug / PCI: Don't scan for non-hotplug bridges if slot is not bridge HP 6730b laptop has an ethernet NIC connected to one of the PCIe root ports. The root ports themselves are native PCIe hotplug capable. Now, during boot after PCI devices are scanned the BIOS triggers ACPI bus check directly to the NIC: ACPI: \_SB_.PCI0.RP06.NIC_: Bus check in hotplug_event() It is not clear why it is sending bus check but regardless the ACPI hotplug notify handler calls enable_slot() directly (instead of going through acpiphp_check_bridge() as there is no bridge), which ends up handling special case for non-hotplug bridges with native PCIe hotplug. This results a crash of some kind but the reporter only sees black screen so it is hard to figure out the exact spot and what actually happens. Based on a few fix proposals it was tracked to crash somewhere inside pci_assign_unassigned_bridge_resources(). In any case we should not really be in that special branch at all because the ACPI notify happened to a slot that is not a PCI bridge (it is just a regular PCI device). Fix this so that we only go to that special branch if we are calling enable_slot() for a bridge (e.g., the ACPI notification was for the bridge). Link: https://bugzilla.kernel.org/show_bug.cgi?id=201127 Fixes: 84c8b58ed3ad ("ACPI / hotplug / PCI: Don't scan bridges managed by native hotplug") Reported-by: Peter Anemone Signed-off-by: Mika Westerberg Signed-off-by: Bjorn Helgaas Reviewed-by: Rafael J. Wysocki CC: stable@vger.kernel.org # v4.18+ --- drivers/pci/hotplug/acpiphp_glue.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index ef0b1b6ba86f..12afa7fdf77e 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -457,17 +457,18 @@ static void acpiphp_native_scan_bridge(struct pci_dev *bridge) /** * enable_slot - enable, configure a slot * @slot: slot to be enabled + * @bridge: true if enable is for the whole bridge (not a single slot) * * This function should be called per *physical slot*, * not per each slot object in ACPI namespace. */ -static void enable_slot(struct acpiphp_slot *slot) +static void enable_slot(struct acpiphp_slot *slot, bool bridge) { struct pci_dev *dev; struct pci_bus *bus = slot->bus; struct acpiphp_func *func; - if (bus->self && hotplug_is_native(bus->self)) { + if (bridge && bus->self && hotplug_is_native(bus->self)) { /* * If native hotplug is used, it will take care of hotplug * slot management and resource allocation for hotplug @@ -701,7 +702,7 @@ static void acpiphp_check_bridge(struct acpiphp_bridge *bridge) trim_stale_devices(dev); /* configure all functions */ - enable_slot(slot); + enable_slot(slot, true); } else { disable_slot(slot); } @@ -785,7 +786,7 @@ static void hotplug_event(u32 type, struct acpiphp_context *context) if (bridge) acpiphp_check_bridge(bridge); else if (!(slot->flags & SLOT_IS_GOING_AWAY)) - enable_slot(slot); + enable_slot(slot, false); break; @@ -973,7 +974,7 @@ int acpiphp_enable_slot(struct acpiphp_slot *slot) /* configure all functions */ if (!(slot->flags & SLOT_ENABLED)) - enable_slot(slot); + enable_slot(slot, false); pci_unlock_rescan_remove(); return 0; From 1d71926bbd59facc4bdb6f13117d3a1aee8b83ba Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Tue, 18 Sep 2018 16:16:56 -0700 Subject: [PATCH 1344/1762] mmc: core: Fix debounce time to use microseconds The debounce value in device tree is in milliseconds but needs to be in microseconds for mmc_gpiod_request_cd(). Fixes: bfd694d5e21c ("mmc: core: Add tunable delay before detecting card after card is inserted") Cc: Shawn Lin Signed-off-by: Tony Lindgren Cc: stable@vger.kernel.org # v4.18+ Signed-off-by: Ulf Hansson --- drivers/mmc/core/host.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index abf9e884386c..f57f5de54206 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -235,7 +235,7 @@ int mmc_of_parse(struct mmc_host *host) host->caps |= MMC_CAP_NEEDS_POLL; ret = mmc_gpiod_request_cd(host, "cd", 0, true, - cd_debounce_delay_ms, + cd_debounce_delay_ms * 1000, &cd_gpio_invert); if (!ret) dev_info(host->parent, "Got CD GPIO\n"); From 854f31ccdd7964c9c2e68da234a3a8aedb51cf6b Mon Sep 17 00:00:00 2001 From: Damien Le Moal Date: Thu, 27 Sep 2018 10:55:13 +0900 Subject: [PATCH 1345/1762] block: fix deadline elevator drain for zoned block devices When the deadline scheduler is used with a zoned block device, writes to a zone will be dispatched one at a time. This causes the warning message: deadline: forced dispatching is broken (nr_sorted=X), please report this to be displayed when switching to another elevator with the legacy I/O path while write requests to a zone are being retained in the scheduler queue. Prevent this message from being displayed when executing elv_drain_elevator() for a zoned block device. __blk_drain_queue() will loop until all writes are dispatched and completed, resulting in the desired elevator queue drain without extensive modifications to the deadline code itself to handle forced-dispatch calls. Signed-off-by: Damien Le Moal Fixes: 8dc8146f9c92 ("deadline-iosched: Introduce zone locking support") Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe --- block/elevator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/elevator.c b/block/elevator.c index 6a06b5d040e5..fae58b2f906f 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -609,7 +609,7 @@ void elv_drain_elevator(struct request_queue *q) while (e->type->ops.sq.elevator_dispatch_fn(q, 1)) ; - if (q->nr_sorted && printed++ < 10) { + if (q->nr_sorted && !blk_queue_is_zoned(q) && printed++ < 10 ) { printk(KERN_ERR "%s: forced dispatching is broken " "(nr_sorted=%u), please report this\n", q->elevator->type->elevator_name, q->nr_sorted); From 36f19d5b4f99fa9fa8263877e5f8e669d7fddc14 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Wed, 26 Sep 2018 17:35:14 -0700 Subject: [PATCH 1346/1762] net/ipv6: Remove extra call to ip6_convert_metrics for multipath case The change to move metrics from the dst to rt6_info moved the call to ip6_convert_metrics from ip6_route_add to ip6_route_info_create. In doing so it makes the call in ip6_route_info_append redundant and actually leaks the metrics installed as part of the ip6_route_info_create. Remove the now unnecessary call. Fixes: d4ead6b34b67f ("net/ipv6: move metrics from dst to rt6_info") Signed-off-by: David Ahern Signed-off-by: David S. Miller --- net/ipv6/route.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 826b14de7dbb..a366c05a239d 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -4321,11 +4321,6 @@ static int ip6_route_info_append(struct net *net, if (!nh) return -ENOMEM; nh->fib6_info = rt; - err = ip6_convert_metrics(net, rt, r_cfg); - if (err) { - kfree(nh); - return err; - } memcpy(&nh->r_cfg, r_cfg, sizeof(*r_cfg)); list_add_tail(&nh->next, rt6_nh_list); From e0511f6c1ccdd153cf063764e93ac177a8553c5d Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Sun, 23 Sep 2018 15:38:21 +0200 Subject: [PATCH 1347/1762] net: phy: fix WoL handling when suspending the PHY Actually there's nothing wrong with the two changes marked as "Fixes", they just revealed a problem which has been existing before. After having switched r8169 to phylib it was reported that WoL from shutdown doesn't work any longer (WoL from suspend isn't affected). Reason is that during shutdown phy_disconnect()->phy_detach()-> phy_suspend() is called. A similar issue occurs when the phylib state machine calls phy_suspend() when handling state PHY_HALTED. Core of the problem is that phy_suspend() suspends the PHY when it should not due to WoL. phy_suspend() checks for WoL already, but this works only if the PHY driver handles WoL (what is rarely the case). Typically WoL is handled by the MAC driver. phylib knows about this and handles it in mdio_bus_phy_may_suspend(), but that's used only when suspending the system, not in other cases like shutdown. Therefore factor out the relevant check from mdio_bus_phy_may_suspend() to a new function phy_may_suspend() and use it in phy_suspend(). Last but not least change phy_detach() to call phy_suspend() before attached_dev is set to NULL. phy_suspend() accesses attached_dev when checking whether the MAC driver activated WoL. Fixes: f1e911d5d0df ("r8169: add basic phylib support") Fixes: e8cfd9d6c772 ("net: phy: call state machine synchronously in phy_stop") Signed-off-by: Heiner Kallweit Signed-off-by: David S. Miller --- drivers/net/phy/phy_device.c | 42 ++++++++++++++++++++++-------------- 1 file changed, 26 insertions(+), 16 deletions(-) diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index db1172db1e7c..2c80d3c44cd6 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -75,6 +75,26 @@ extern struct phy_driver genphy_10g_driver; static LIST_HEAD(phy_fixup_list); static DEFINE_MUTEX(phy_fixup_lock); +static bool phy_may_suspend(struct phy_device *phydev) +{ + struct net_device *netdev = phydev->attached_dev; + + if (!netdev) + return true; + + /* Don't suspend PHY if the attached netdev parent may wakeup. + * The parent may point to a PCI device, as in tg3 driver. + */ + if (netdev->dev.parent && device_may_wakeup(netdev->dev.parent)) + return false; + + /* Also don't suspend PHY if the netdev itself may wakeup. This + * is the case for devices w/o underlaying pwr. mgmt. aware bus, + * e.g. SoC devices. + */ + return !device_may_wakeup(&netdev->dev); +} + #ifdef CONFIG_PM static bool mdio_bus_phy_may_suspend(struct phy_device *phydev) { @@ -93,20 +113,7 @@ static bool mdio_bus_phy_may_suspend(struct phy_device *phydev) if (!netdev) return !phydev->suspended; - /* Don't suspend PHY if the attached netdev parent may wakeup. - * The parent may point to a PCI device, as in tg3 driver. - */ - if (netdev->dev.parent && device_may_wakeup(netdev->dev.parent)) - return false; - - /* Also don't suspend PHY if the netdev itself may wakeup. This - * is the case for devices w/o underlaying pwr. mgmt. aware bus, - * e.g. SoC devices. - */ - if (device_may_wakeup(&netdev->dev)) - return false; - - return true; + return phy_may_suspend(phydev); } static int mdio_bus_phy_suspend(struct device *dev) @@ -1132,9 +1139,9 @@ void phy_detach(struct phy_device *phydev) sysfs_remove_link(&dev->dev.kobj, "phydev"); sysfs_remove_link(&phydev->mdio.dev.kobj, "attached_dev"); } + phy_suspend(phydev); phydev->attached_dev->phydev = NULL; phydev->attached_dev = NULL; - phy_suspend(phydev); phydev->phylink = NULL; phy_led_triggers_unregister(phydev); @@ -1171,9 +1178,12 @@ int phy_suspend(struct phy_device *phydev) struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL }; int ret = 0; + if (phydev->suspended) + return 0; + /* If the device has WOL enabled, we cannot suspend the PHY */ phy_ethtool_get_wol(phydev, &wol); - if (wol.wolopts) + if (wol.wolopts || !phy_may_suspend(phydev)) return -EBUSY; if (phydev->drv && phydrv->suspend) From d31d1d03aa909aa6257d9d581eb0eb5d0ed366e2 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 26 Sep 2018 20:01:36 -0700 Subject: [PATCH 1348/1762] Revert "net: phy: fix WoL handling when suspending the PHY" This reverts commit e0511f6c1ccdd153cf063764e93ac177a8553c5d. I commited the wrong version of these changes. Signed-off-by: David S. Miller --- drivers/net/phy/phy_device.c | 42 ++++++++++++++---------------------- 1 file changed, 16 insertions(+), 26 deletions(-) diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 2c80d3c44cd6..db1172db1e7c 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -75,26 +75,6 @@ extern struct phy_driver genphy_10g_driver; static LIST_HEAD(phy_fixup_list); static DEFINE_MUTEX(phy_fixup_lock); -static bool phy_may_suspend(struct phy_device *phydev) -{ - struct net_device *netdev = phydev->attached_dev; - - if (!netdev) - return true; - - /* Don't suspend PHY if the attached netdev parent may wakeup. - * The parent may point to a PCI device, as in tg3 driver. - */ - if (netdev->dev.parent && device_may_wakeup(netdev->dev.parent)) - return false; - - /* Also don't suspend PHY if the netdev itself may wakeup. This - * is the case for devices w/o underlaying pwr. mgmt. aware bus, - * e.g. SoC devices. - */ - return !device_may_wakeup(&netdev->dev); -} - #ifdef CONFIG_PM static bool mdio_bus_phy_may_suspend(struct phy_device *phydev) { @@ -113,7 +93,20 @@ static bool mdio_bus_phy_may_suspend(struct phy_device *phydev) if (!netdev) return !phydev->suspended; - return phy_may_suspend(phydev); + /* Don't suspend PHY if the attached netdev parent may wakeup. + * The parent may point to a PCI device, as in tg3 driver. + */ + if (netdev->dev.parent && device_may_wakeup(netdev->dev.parent)) + return false; + + /* Also don't suspend PHY if the netdev itself may wakeup. This + * is the case for devices w/o underlaying pwr. mgmt. aware bus, + * e.g. SoC devices. + */ + if (device_may_wakeup(&netdev->dev)) + return false; + + return true; } static int mdio_bus_phy_suspend(struct device *dev) @@ -1139,9 +1132,9 @@ void phy_detach(struct phy_device *phydev) sysfs_remove_link(&dev->dev.kobj, "phydev"); sysfs_remove_link(&phydev->mdio.dev.kobj, "attached_dev"); } - phy_suspend(phydev); phydev->attached_dev->phydev = NULL; phydev->attached_dev = NULL; + phy_suspend(phydev); phydev->phylink = NULL; phy_led_triggers_unregister(phydev); @@ -1178,12 +1171,9 @@ int phy_suspend(struct phy_device *phydev) struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL }; int ret = 0; - if (phydev->suspended) - return 0; - /* If the device has WOL enabled, we cannot suspend the PHY */ phy_ethtool_get_wol(phydev, &wol); - if (wol.wolopts || !phy_may_suspend(phydev)) + if (wol.wolopts) return -EBUSY; if (phydev->drv && phydrv->suspend) From 6194114324139dc16f3251c67ed853bd6d4ae056 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Mon, 24 Sep 2018 21:58:59 +0200 Subject: [PATCH 1349/1762] net: core: add member wol_enabled to struct net_device Add flag wol_enabled to struct net_device indicating whether Wake-on-LAN is enabled. As first user phy_suspend() will use it to decide whether PHY can be suspended or not. Fixes: f1e911d5d0df ("r8169: add basic phylib support") Fixes: e8cfd9d6c772 ("net: phy: call state machine synchronously in phy_stop") Signed-off-by: Heiner Kallweit Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- include/linux/netdevice.h | 3 +++ net/core/ethtool.c | 9 ++++++++- 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index ca5ab98053c8..c7861e4b402c 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1730,6 +1730,8 @@ enum netdev_priv_flags { * switch driver and used to set the phys state of the * switch port. * + * @wol_enabled: Wake-on-LAN is enabled + * * FIXME: cleanup struct net_device such that network protocol info * moves out. */ @@ -2014,6 +2016,7 @@ struct net_device { struct lock_class_key *qdisc_tx_busylock; struct lock_class_key *qdisc_running_key; bool proto_down; + unsigned wol_enabled:1; }; #define to_net_dev(d) container_of(d, struct net_device, dev) diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 234a0ec2e932..0762aaf8e964 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -1483,6 +1483,7 @@ static int ethtool_get_wol(struct net_device *dev, char __user *useraddr) static int ethtool_set_wol(struct net_device *dev, char __user *useraddr) { struct ethtool_wolinfo wol; + int ret; if (!dev->ethtool_ops->set_wol) return -EOPNOTSUPP; @@ -1490,7 +1491,13 @@ static int ethtool_set_wol(struct net_device *dev, char __user *useraddr) if (copy_from_user(&wol, useraddr, sizeof(wol))) return -EFAULT; - return dev->ethtool_ops->set_wol(dev, &wol); + ret = dev->ethtool_ops->set_wol(dev, &wol); + if (ret) + return ret; + + dev->wol_enabled = !!wol.wolopts; + + return 0; } static int ethtool_get_eee(struct net_device *dev, char __user *useraddr) From 93f41e67dc8ff0fd987120a6ef2717f21462c534 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Mon, 24 Sep 2018 22:01:32 +0200 Subject: [PATCH 1350/1762] net: phy: fix WoL handling when suspending the PHY Core of the problem is that phy_suspend() suspends the PHY when it should not because of WoL. phy_suspend() checks for WoL already, but this works only if the PHY driver handles WoL (what is rarely the case). Typically WoL is handled by the MAC driver. This patch uses new member wol_enabled of struct net_device as additional criteria in the check when not to suspend the PHY because of WoL. Last but not least change phy_detach() to call phy_suspend() before attached_dev is set to NULL. phy_suspend() accesses attached_dev when checking whether the MAC driver activated WoL. Fixes: f1e911d5d0df ("r8169: add basic phylib support") Fixes: e8cfd9d6c772 ("net: phy: call state machine synchronously in phy_stop") Signed-off-by: Heiner Kallweit Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/phy/phy_device.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index db1172db1e7c..19ab8a7d1e48 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -93,7 +93,12 @@ static bool mdio_bus_phy_may_suspend(struct phy_device *phydev) if (!netdev) return !phydev->suspended; - /* Don't suspend PHY if the attached netdev parent may wakeup. + if (netdev->wol_enabled) + return false; + + /* As long as not all affected network drivers support the + * wol_enabled flag, let's check for hints that WoL is enabled. + * Don't suspend PHY if the attached netdev parent may wake up. * The parent may point to a PCI device, as in tg3 driver. */ if (netdev->dev.parent && device_may_wakeup(netdev->dev.parent)) @@ -1132,9 +1137,9 @@ void phy_detach(struct phy_device *phydev) sysfs_remove_link(&dev->dev.kobj, "phydev"); sysfs_remove_link(&phydev->mdio.dev.kobj, "attached_dev"); } + phy_suspend(phydev); phydev->attached_dev->phydev = NULL; phydev->attached_dev = NULL; - phy_suspend(phydev); phydev->phylink = NULL; phy_led_triggers_unregister(phydev); @@ -1168,12 +1173,13 @@ EXPORT_SYMBOL(phy_detach); int phy_suspend(struct phy_device *phydev) { struct phy_driver *phydrv = to_phy_driver(phydev->mdio.dev.driver); + struct net_device *netdev = phydev->attached_dev; struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL }; int ret = 0; /* If the device has WOL enabled, we cannot suspend the PHY */ phy_ethtool_get_wol(phydev, &wol); - if (wol.wolopts) + if (wol.wolopts || (netdev && netdev->wol_enabled)) return -EBUSY; if (phydev->drv && phydrv->suspend) From 5a94df70d3878ae597dd8331ec0add491bdfe851 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Mon, 24 Sep 2018 16:51:41 +0100 Subject: [PATCH 1351/1762] qed: fix spelling mistake "toogle" -> "toggle" Trivial fix to spelling mistake in DP_VERBOSE message Signed-off-by: Colin Ian King Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_rdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_rdma.c b/drivers/net/ethernet/qlogic/qed/qed_rdma.c index be941cfaa2d4..c71391b9c757 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_rdma.c +++ b/drivers/net/ethernet/qlogic/qed/qed_rdma.c @@ -228,7 +228,7 @@ static int qed_rdma_alloc(struct qed_hwfn *p_hwfn, num_cons, "Toggle"); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, - "Failed to allocate toogle bits, rc = %d\n", rc); + "Failed to allocate toggle bits, rc = %d\n", rc); goto free_cq_map; } From 079db3fd4ef164a59006425a988b1c73639fade8 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Mon, 24 Sep 2018 18:39:51 +0100 Subject: [PATCH 1352/1762] wimax/i2400m: fix spelling mistake "not unitialized" -> "uninitialized" Trivial fix to spelling mistake in ms_to_errno array of error messages and remove confusing "not" from the error text since the error code refers to an uninitialized error code. Signed-off-by: Colin Ian King Signed-off-by: David S. Miller --- drivers/net/wimax/i2400m/control.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wimax/i2400m/control.c b/drivers/net/wimax/i2400m/control.c index 094cea775d0c..ef298d8525c5 100644 --- a/drivers/net/wimax/i2400m/control.c +++ b/drivers/net/wimax/i2400m/control.c @@ -257,7 +257,7 @@ static const struct [I2400M_MS_ACCESSIBILITY_ERROR] = { "accesibility error", -EIO }, [I2400M_MS_BUSY] = { "busy", -EBUSY }, [I2400M_MS_CORRUPTED_TLV] = { "corrupted TLV", -EILSEQ }, - [I2400M_MS_UNINITIALIZED] = { "not unitialized", -EILSEQ }, + [I2400M_MS_UNINITIALIZED] = { "uninitialized", -EILSEQ }, [I2400M_MS_UNKNOWN_ERROR] = { "unknown error", -EIO }, [I2400M_MS_PRODUCTION_ERROR] = { "production error", -EIO }, [I2400M_MS_NO_RF] = { "no RF", -EIO }, From a898fba32229efd5e6b6154f83fa86a7145156b9 Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Mon, 24 Sep 2018 13:53:34 -0700 Subject: [PATCH 1353/1762] qed: Avoid implicit enum conversion in qed_set_tunn_cls_info Clang warns when one enumerated type is implicitly converted to another. drivers/net/ethernet/qlogic/qed/qed_sp_commands.c:163:25: warning: implicit conversion from enumeration type 'enum tunnel_clss' to different enumeration type 'enum qed_tunn_clss' [-Wenum-conversion] p_tun->vxlan.tun_cls = type; ~ ^~~~ drivers/net/ethernet/qlogic/qed/qed_sp_commands.c:165:26: warning: implicit conversion from enumeration type 'enum tunnel_clss' to different enumeration type 'enum qed_tunn_clss' [-Wenum-conversion] p_tun->l2_gre.tun_cls = type; ~ ^~~~ drivers/net/ethernet/qlogic/qed/qed_sp_commands.c:167:26: warning: implicit conversion from enumeration type 'enum tunnel_clss' to different enumeration type 'enum qed_tunn_clss' [-Wenum-conversion] p_tun->ip_gre.tun_cls = type; ~ ^~~~ drivers/net/ethernet/qlogic/qed/qed_sp_commands.c:169:29: warning: implicit conversion from enumeration type 'enum tunnel_clss' to different enumeration type 'enum qed_tunn_clss' [-Wenum-conversion] p_tun->l2_geneve.tun_cls = type; ~ ^~~~ drivers/net/ethernet/qlogic/qed/qed_sp_commands.c:171:29: warning: implicit conversion from enumeration type 'enum tunnel_clss' to different enumeration type 'enum qed_tunn_clss' [-Wenum-conversion] p_tun->ip_geneve.tun_cls = type; ~ ^~~~ 5 warnings generated. Avoid this by changing type to an int. Link: https://github.com/ClangBuiltLinux/linux/issues/125 Signed-off-by: Nathan Chancellor Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_sp_commands.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c b/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c index 8de644b4721e..77b6248ad3b9 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c +++ b/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c @@ -154,7 +154,7 @@ qed_set_pf_update_tunn_mode(struct qed_tunnel_info *p_tun, static void qed_set_tunn_cls_info(struct qed_tunnel_info *p_tun, struct qed_tunnel_info *p_src) { - enum tunnel_clss type; + int type; p_tun->b_update_rx_cls = p_src->b_update_rx_cls; p_tun->b_update_tx_cls = p_src->b_update_tx_cls; From db803f36e56f23b5a2266807e190d1dc11554d54 Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Mon, 24 Sep 2018 14:05:27 -0700 Subject: [PATCH 1354/1762] qed: Fix mask parameter in qed_vf_prep_tunn_req_tlv Clang complains when one enumerated type is implicitly converted to another. drivers/net/ethernet/qlogic/qed/qed_vf.c:686:6: warning: implicit conversion from enumeration type 'enum qed_tunn_mode' to different enumeration type 'enum qed_tunn_clss' [-Wenum-conversion] QED_MODE_L2GENEVE_TUNN, ^~~~~~~~~~~~~~~~~~~~~~ Update mask's parameter to expect qed_tunn_mode, which is what was intended. Link: https://github.com/ClangBuiltLinux/linux/issues/125 Signed-off-by: Nathan Chancellor Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_vf.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_vf.c b/drivers/net/ethernet/qlogic/qed/qed_vf.c index 3d4269659820..fcd8da08274f 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_vf.c +++ b/drivers/net/ethernet/qlogic/qed/qed_vf.c @@ -572,7 +572,7 @@ free_p_iov: static void __qed_vf_prep_tunn_req_tlv(struct vfpf_update_tunn_param_tlv *p_req, struct qed_tunn_update_type *p_src, - enum qed_tunn_clss mask, u8 *p_cls) + enum qed_tunn_mode mask, u8 *p_cls) { if (p_src->b_update_mode) { p_req->tun_mode_update_mask |= BIT(mask); @@ -587,7 +587,7 @@ __qed_vf_prep_tunn_req_tlv(struct vfpf_update_tunn_param_tlv *p_req, static void qed_vf_prep_tunn_req_tlv(struct vfpf_update_tunn_param_tlv *p_req, struct qed_tunn_update_type *p_src, - enum qed_tunn_clss mask, + enum qed_tunn_mode mask, u8 *p_cls, struct qed_tunn_update_udp_port *p_port, u8 *p_update_port, u16 *p_udp_port) { From d3a315795b4ce8b105a64a90699103121bde04a8 Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Mon, 24 Sep 2018 14:34:53 -0700 Subject: [PATCH 1355/1762] qed: Avoid implicit enum conversion in qed_roce_mode_to_flavor Clang warns when one enumerated type is implicitly converted to another. drivers/net/ethernet/qlogic/qed/qed_roce.c:153:12: warning: implicit conversion from enumeration type 'enum roce_mode' to different enumeration type 'enum roce_flavor' [-Wenum-conversion] flavor = ROCE_V2_IPV6; ~ ^~~~~~~~~~~~ drivers/net/ethernet/qlogic/qed/qed_roce.c:156:12: warning: implicit conversion from enumeration type 'enum roce_mode' to different enumeration type 'enum roce_flavor' [-Wenum-conversion] flavor = MAX_ROCE_MODE; ~ ^~~~~~~~~~~~~ 2 warnings generated. Use the appropriate values from the expected type, roce_flavor: ROCE_V2_IPV6 = RROCE_IPV6 = 2 MAX_ROCE_MODE = MAX_ROCE_FLAVOR = 3 While we're add it, ditch the local variable flavor, we can just return the value directly from the switch statement. Link: https://github.com/ClangBuiltLinux/linux/issues/125 Signed-off-by: Nathan Chancellor Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_roce.c | 15 ++++----------- 1 file changed, 4 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.c b/drivers/net/ethernet/qlogic/qed/qed_roce.c index 7d7a64c55ff1..f9167d1354bb 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_roce.c +++ b/drivers/net/ethernet/qlogic/qed/qed_roce.c @@ -140,23 +140,16 @@ static void qed_rdma_copy_gids(struct qed_rdma_qp *qp, __le32 *src_gid, static enum roce_flavor qed_roce_mode_to_flavor(enum roce_mode roce_mode) { - enum roce_flavor flavor; - switch (roce_mode) { case ROCE_V1: - flavor = PLAIN_ROCE; - break; + return PLAIN_ROCE; case ROCE_V2_IPV4: - flavor = RROCE_IPV4; - break; + return RROCE_IPV4; case ROCE_V2_IPV6: - flavor = ROCE_V2_IPV6; - break; + return RROCE_IPV6; default: - flavor = MAX_ROCE_MODE; - break; + return MAX_ROCE_FLAVOR; } - return flavor; } static void qed_roce_free_cid_pair(struct qed_hwfn *p_hwfn, u16 cid) From 6a9e461f6fe4434e6172304b69774daff9a3ac4c Mon Sep 17 00:00:00 2001 From: Mahesh Bandewar Date: Mon, 24 Sep 2018 14:39:42 -0700 Subject: [PATCH 1356/1762] bonding: pass link-local packets to bonding master also. Commit b89f04c61efe ("bonding: deliver link-local packets with skb->dev set to link that packets arrived on") changed the behavior of how link-local-multicast packets are processed. The change in the behavior broke some legacy use cases where these packets are expected to arrive on bonding master device also. This patch passes the packet to the stack with the link it arrived on as well as passes to the bonding-master device to preserve the legacy use case. Fixes: b89f04c61efe ("bonding: deliver link-local packets with skb->dev set to link that packets arrived on") Reported-by: Michal Soltys Signed-off-by: Mahesh Bandewar Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 0d87e11e7f1d..8c0a0908875d 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1170,9 +1170,26 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb) } } - /* don't change skb->dev for link-local packets */ - if (is_link_local_ether_addr(eth_hdr(skb)->h_dest)) + /* Link-local multicast packets should be passed to the + * stack on the link they arrive as well as pass them to the + * bond-master device. These packets are mostly usable when + * stack receives it with the link on which they arrive + * (e.g. LLDP) they also must be available on master. Some of + * the use cases include (but are not limited to): LLDP agents + * that must be able to operate both on enslaved interfaces as + * well as on bonds themselves; linux bridges that must be able + * to process/pass BPDUs from attached bonds when any kind of + * STP version is enabled on the network. + */ + if (is_link_local_ether_addr(eth_hdr(skb)->h_dest)) { + struct sk_buff *nskb = skb_clone(skb, GFP_ATOMIC); + + if (nskb) { + nskb->dev = bond->dev; + netif_rx(nskb); + } return RX_HANDLER_PASS; + } if (bond_should_deliver_exact_match(skb, slave, bond)) return RX_HANDLER_EXACT; From d4859d749aa7090ffb743d15648adb962a1baeae Mon Sep 17 00:00:00 2001 From: Mahesh Bandewar Date: Mon, 24 Sep 2018 14:40:11 -0700 Subject: [PATCH 1357/1762] bonding: avoid possible dead-lock Syzkaller reported this on a slightly older kernel but it's still applicable to the current kernel - ====================================================== WARNING: possible circular locking dependency detected 4.18.0-next-20180823+ #46 Not tainted ------------------------------------------------------ syz-executor4/26841 is trying to acquire lock: 00000000dd41ef48 ((wq_completion)bond_dev->name){+.+.}, at: flush_workqueue+0x2db/0x1e10 kernel/workqueue.c:2652 but task is already holding lock: 00000000768ab431 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline] 00000000768ab431 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x412/0xc30 net/core/rtnetlink.c:4708 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (rtnl_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0x171/0x1700 kernel/locking/mutex.c:1073 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1088 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77 bond_netdev_notify drivers/net/bonding/bond_main.c:1310 [inline] bond_netdev_notify_work+0x44/0xd0 drivers/net/bonding/bond_main.c:1320 process_one_work+0xc73/0x1aa0 kernel/workqueue.c:2153 worker_thread+0x189/0x13c0 kernel/workqueue.c:2296 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:415 -> #1 ((work_completion)(&(&nnw->work)->work)){+.+.}: process_one_work+0xc0b/0x1aa0 kernel/workqueue.c:2129 worker_thread+0x189/0x13c0 kernel/workqueue.c:2296 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:415 -> #0 ((wq_completion)bond_dev->name){+.+.}: lock_acquire+0x1e4/0x4f0 kernel/locking/lockdep.c:3901 flush_workqueue+0x30a/0x1e10 kernel/workqueue.c:2655 drain_workqueue+0x2a9/0x640 kernel/workqueue.c:2820 destroy_workqueue+0xc6/0x9d0 kernel/workqueue.c:4155 __alloc_workqueue_key+0xef9/0x1190 kernel/workqueue.c:4138 bond_init+0x269/0x940 drivers/net/bonding/bond_main.c:4734 register_netdevice+0x337/0x1100 net/core/dev.c:8410 bond_newlink+0x49/0xa0 drivers/net/bonding/bond_netlink.c:453 rtnl_newlink+0xef4/0x1d50 net/core/rtnetlink.c:3099 rtnetlink_rcv_msg+0x46e/0xc30 net/core/rtnetlink.c:4711 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4729 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x5a0/0x760 net/netlink/af_netlink.c:1343 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:632 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2115 __sys_sendmsg+0x11d/0x290 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: (wq_completion)bond_dev->name --> (work_completion)(&(&nnw->work)->work) --> rtnl_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(rtnl_mutex); lock((work_completion)(&(&nnw->work)->work)); lock(rtnl_mutex); lock((wq_completion)bond_dev->name); *** DEADLOCK *** 1 lock held by syz-executor4/26841: stack backtrace: CPU: 1 PID: 26841 Comm: syz-executor4 Not tainted 4.18.0-next-20180823+ #46 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 print_circular_bug.isra.34.cold.55+0x1bd/0x27d kernel/locking/lockdep.c:1222 check_prev_add kernel/locking/lockdep.c:1862 [inline] check_prevs_add kernel/locking/lockdep.c:1975 [inline] validate_chain kernel/locking/lockdep.c:2416 [inline] __lock_acquire+0x3449/0x5020 kernel/locking/lockdep.c:3412 lock_acquire+0x1e4/0x4f0 kernel/locking/lockdep.c:3901 flush_workqueue+0x30a/0x1e10 kernel/workqueue.c:2655 drain_workqueue+0x2a9/0x640 kernel/workqueue.c:2820 destroy_workqueue+0xc6/0x9d0 kernel/workqueue.c:4155 __alloc_workqueue_key+0xef9/0x1190 kernel/workqueue.c:4138 bond_init+0x269/0x940 drivers/net/bonding/bond_main.c:4734 register_netdevice+0x337/0x1100 net/core/dev.c:8410 bond_newlink+0x49/0xa0 drivers/net/bonding/bond_netlink.c:453 rtnl_newlink+0xef4/0x1d50 net/core/rtnetlink.c:3099 rtnetlink_rcv_msg+0x46e/0xc30 net/core/rtnetlink.c:4711 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4729 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x5a0/0x760 net/netlink/af_netlink.c:1343 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:632 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2115 __sys_sendmsg+0x11d/0x290 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457089 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f2df20a5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f2df20a66d4 RCX: 0000000000457089 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 RBP: 0000000000930140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d40b8 R14: 00000000004c8ad8 R15: 0000000000000001 Signed-off-by: Mahesh Bandewar Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 43 +++++++++++++-------------------- include/net/bonding.h | 7 +----- 2 files changed, 18 insertions(+), 32 deletions(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 8c0a0908875d..c05c01a00755 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -210,6 +210,7 @@ static void bond_get_stats(struct net_device *bond_dev, static void bond_slave_arr_handler(struct work_struct *work); static bool bond_time_in_interval(struct bonding *bond, unsigned long last_act, int mod); +static void bond_netdev_notify_work(struct work_struct *work); /*---------------------------- General routines -----------------------------*/ @@ -1286,6 +1287,8 @@ static struct slave *bond_alloc_slave(struct bonding *bond) return NULL; } } + INIT_DELAYED_WORK(&slave->notify_work, bond_netdev_notify_work); + return slave; } @@ -1293,6 +1296,7 @@ static void bond_free_slave(struct slave *slave) { struct bonding *bond = bond_get_bond_by_slave(slave); + cancel_delayed_work_sync(&slave->notify_work); if (BOND_MODE(bond) == BOND_MODE_8023AD) kfree(SLAVE_AD_INFO(slave)); @@ -1314,39 +1318,26 @@ static void bond_fill_ifslave(struct slave *slave, struct ifslave *info) info->link_failure_count = slave->link_failure_count; } -static void bond_netdev_notify(struct net_device *dev, - struct netdev_bonding_info *info) -{ - rtnl_lock(); - netdev_bonding_info_change(dev, info); - rtnl_unlock(); -} - static void bond_netdev_notify_work(struct work_struct *_work) { - struct netdev_notify_work *w = - container_of(_work, struct netdev_notify_work, work.work); + struct slave *slave = container_of(_work, struct slave, + notify_work.work); - bond_netdev_notify(w->dev, &w->bonding_info); - dev_put(w->dev); - kfree(w); + if (rtnl_trylock()) { + struct netdev_bonding_info binfo; + + bond_fill_ifslave(slave, &binfo.slave); + bond_fill_ifbond(slave->bond, &binfo.master); + netdev_bonding_info_change(slave->dev, &binfo); + rtnl_unlock(); + } else { + queue_delayed_work(slave->bond->wq, &slave->notify_work, 1); + } } void bond_queue_slave_event(struct slave *slave) { - struct bonding *bond = slave->bond; - struct netdev_notify_work *nnw = kzalloc(sizeof(*nnw), GFP_ATOMIC); - - if (!nnw) - return; - - dev_hold(slave->dev); - nnw->dev = slave->dev; - bond_fill_ifslave(slave, &nnw->bonding_info.slave); - bond_fill_ifbond(bond, &nnw->bonding_info.master); - INIT_DELAYED_WORK(&nnw->work, bond_netdev_notify_work); - - queue_delayed_work(slave->bond->wq, &nnw->work, 0); + queue_delayed_work(slave->bond->wq, &slave->notify_work, 0); } void bond_lower_state_changed(struct slave *slave) diff --git a/include/net/bonding.h b/include/net/bonding.h index a2d058170ea3..b46d68acf701 100644 --- a/include/net/bonding.h +++ b/include/net/bonding.h @@ -139,12 +139,6 @@ struct bond_parm_tbl { int mode; }; -struct netdev_notify_work { - struct delayed_work work; - struct net_device *dev; - struct netdev_bonding_info bonding_info; -}; - struct slave { struct net_device *dev; /* first - useful for panic debug */ struct bonding *bond; /* our master */ @@ -172,6 +166,7 @@ struct slave { #ifdef CONFIG_NET_POLL_CONTROLLER struct netpoll *np; #endif + struct delayed_work notify_work; struct kobject kobj; struct rtnl_link_stats64 slave_stats; }; From 1c492a9d55ba99079210ed901dd8a5423f980487 Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Mon, 24 Sep 2018 15:17:03 -0700 Subject: [PATCH 1358/1762] qed: Avoid constant logical operation warning in qed_vf_pf_acquire Clang warns when a constant is used in a boolean context as it thinks a bitwise operation may have been intended. drivers/net/ethernet/qlogic/qed/qed_vf.c:415:27: warning: use of logical '&&' with constant operand [-Wconstant-logical-operand] if (!p_iov->b_pre_fp_hsi && ^ drivers/net/ethernet/qlogic/qed/qed_vf.c:415:27: note: use '&' for a bitwise operation if (!p_iov->b_pre_fp_hsi && ^~ & drivers/net/ethernet/qlogic/qed/qed_vf.c:415:27: note: remove constant to silence this warning if (!p_iov->b_pre_fp_hsi && ~^~ 1 warning generated. This has been here since commit 1fe614d10f45 ("qed: Relax VF firmware requirements") and I am not entirely sure why since 0 isn't a special case. Just remove the statement causing Clang to warn since it isn't required. Link: https://github.com/ClangBuiltLinux/linux/issues/126 Signed-off-by: Nathan Chancellor Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_vf.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_vf.c b/drivers/net/ethernet/qlogic/qed/qed_vf.c index fcd8da08274f..be118d057b92 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_vf.c +++ b/drivers/net/ethernet/qlogic/qed/qed_vf.c @@ -413,7 +413,6 @@ static int qed_vf_pf_acquire(struct qed_hwfn *p_hwfn) } if (!p_iov->b_pre_fp_hsi && - ETH_HSI_VER_MINOR && (resp->pfdev_info.minor_fp_hsi < ETH_HSI_VER_MINOR)) { DP_INFO(p_hwfn, "PF is using older fastpath HSI; %02x.%02x is configured\n", From 77f2d753819b7d50c16abfb778caf1fe075faed0 Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Mon, 24 Sep 2018 14:42:12 -0700 Subject: [PATCH 1359/1762] qed: Avoid implicit enum conversion in qed_iwarp_parse_rx_pkt Clang warns when one enumerated type is implicitly converted to another. drivers/net/ethernet/qlogic/qed/qed_iwarp.c:1713:25: warning: implicit conversion from enumeration type 'enum tcp_ip_version' to different enumeration type 'enum qed_tcp_ip_version' [-Wenum-conversion] cm_info->ip_version = TCP_IPV4; ~ ^~~~~~~~ drivers/net/ethernet/qlogic/qed/qed_iwarp.c:1733:25: warning: implicit conversion from enumeration type 'enum tcp_ip_version' to different enumeration type 'enum qed_tcp_ip_version' [-Wenum-conversion] cm_info->ip_version = TCP_IPV6; ~ ^~~~~~~~ 2 warnings generated. Use the appropriate values from the expected type, qed_tcp_ip_version: TCP_IPV4 = QED_TCP_IPV4 = 0 TCP_IPV6 = QED_TCP_IPV6 = 1 Link: https://github.com/ClangBuiltLinux/linux/issues/125 Signed-off-by: Nathan Chancellor Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_iwarp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c index 17f3dfa2cc94..e860bdf0f752 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c +++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c @@ -1710,7 +1710,7 @@ qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn, cm_info->local_ip[0] = ntohl(iph->daddr); cm_info->remote_ip[0] = ntohl(iph->saddr); - cm_info->ip_version = TCP_IPV4; + cm_info->ip_version = QED_TCP_IPV4; ip_hlen = (iph->ihl) * sizeof(u32); *payload_len = ntohs(iph->tot_len) - ip_hlen; @@ -1730,7 +1730,7 @@ qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn, cm_info->remote_ip[i] = ntohl(ip6h->saddr.in6_u.u6_addr32[i]); } - cm_info->ip_version = TCP_IPV6; + cm_info->ip_version = QED_TCP_IPV6; ip_hlen = sizeof(*ip6h); *payload_len = ntohs(ip6h->payload_len); From 3e322474485931e7ea6e4c5560089991a7f03cbc Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Tue, 25 Sep 2018 01:50:00 +0200 Subject: [PATCH 1360/1762] net: phy: sfp: Fix unregistering of HWMON SFP device A HWMON device is only registered is the SFP module supports the diagnostic page and is complient to SFF8472. Don't unconditionally unregister the hwmon device when the SFP module is remove, otherwise we access data structures which don't exist. Reported-by: Florian Fainelli Fixes: 1323061a018a ("net: phy: sfp: Add HWMON support for module sensors") Signed-off-by: Andrew Lunn Tested-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/phy/sfp.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c index 52fffb98fde9..6e13b8832bc7 100644 --- a/drivers/net/phy/sfp.c +++ b/drivers/net/phy/sfp.c @@ -1098,8 +1098,11 @@ static int sfp_hwmon_insert(struct sfp *sfp) static void sfp_hwmon_remove(struct sfp *sfp) { - hwmon_device_unregister(sfp->hwmon_dev); - kfree(sfp->hwmon_name); + if (!IS_ERR_OR_NULL(sfp->hwmon_dev)) { + hwmon_device_unregister(sfp->hwmon_dev); + sfp->hwmon_dev = NULL; + kfree(sfp->hwmon_name); + } } #else static int sfp_hwmon_insert(struct sfp *sfp) From 8fd780698745ba121530c5c20fd237aacde4c371 Mon Sep 17 00:00:00 2001 From: Hangbin Liu Date: Wed, 26 Sep 2018 10:35:42 +0800 Subject: [PATCH 1361/1762] vxlan: fill ttl inherit info When add vxlan ttl inherit support, I forgot to fill it when dump vlxan info. Fix it now. Fixes: 72f6d71e491e6 ("vxlan: add ttl inherit support") Signed-off-by: Hangbin Liu Signed-off-by: David S. Miller --- drivers/net/vxlan.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index ababba37d735..2b8da2b7e721 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -3539,6 +3539,7 @@ static size_t vxlan_get_size(const struct net_device *dev) nla_total_size(sizeof(__u32)) + /* IFLA_VXLAN_LINK */ nla_total_size(sizeof(struct in6_addr)) + /* IFLA_VXLAN_LOCAL{6} */ nla_total_size(sizeof(__u8)) + /* IFLA_VXLAN_TTL */ + nla_total_size(sizeof(__u8)) + /* IFLA_VXLAN_TTL_INHERIT */ nla_total_size(sizeof(__u8)) + /* IFLA_VXLAN_TOS */ nla_total_size(sizeof(__be32)) + /* IFLA_VXLAN_LABEL */ nla_total_size(sizeof(__u8)) + /* IFLA_VXLAN_LEARNING */ @@ -3603,6 +3604,8 @@ static int vxlan_fill_info(struct sk_buff *skb, const struct net_device *dev) } if (nla_put_u8(skb, IFLA_VXLAN_TTL, vxlan->cfg.ttl) || + nla_put_u8(skb, IFLA_VXLAN_TTL_INHERIT, + !!(vxlan->cfg.flags & VXLAN_F_TTL_INHERIT)) || nla_put_u8(skb, IFLA_VXLAN_TOS, vxlan->cfg.tos) || nla_put_be32(skb, IFLA_VXLAN_LABEL, vxlan->cfg.label) || nla_put_u8(skb, IFLA_VXLAN_LEARNING, From 73f21c653f930f438d53eed29b5e4c65c8a0f906 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Wed, 26 Sep 2018 00:41:04 -0400 Subject: [PATCH 1362/1762] bnxt_en: Fix TX timeout during netpoll. The current netpoll implementation in the bnxt_en driver has problems that may miss TX completion events. bnxt_poll_work() in effect is only handling at most 1 TX packet before exiting. In addition, there may be in flight TX completions that ->poll() may miss even after we fix bnxt_poll_work() to handle all visible TX completions. netpoll may not call ->poll() again and HW may not generate IRQ because the driver does not ARM the IRQ when the budget (0 for netpoll) is reached. We fix it by handling all TX completions and to always ARM the IRQ when we exit ->poll() with 0 budget. Also, the logic to ACK the completion ring in case it is almost filled with TX completions need to be adjusted to take care of the 0 budget case, as discussed with Eric Dumazet Reported-by: Song Liu Reviewed-by: Song Liu Tested-by: Song Liu Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 61957b0bbd8c..0478e562abac 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -1884,8 +1884,11 @@ static int bnxt_poll_work(struct bnxt *bp, struct bnxt_napi *bnapi, int budget) if (TX_CMP_TYPE(txcmp) == CMP_TYPE_TX_L2_CMP) { tx_pkts++; /* return full budget so NAPI will complete. */ - if (unlikely(tx_pkts > bp->tx_wake_thresh)) + if (unlikely(tx_pkts > bp->tx_wake_thresh)) { rx_pkts = budget; + raw_cons = NEXT_RAW_CMP(raw_cons); + break; + } } else if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) { if (likely(budget)) rc = bnxt_rx_pkt(bp, bnapi, &raw_cons, &event); @@ -1913,7 +1916,7 @@ static int bnxt_poll_work(struct bnxt *bp, struct bnxt_napi *bnapi, int budget) } raw_cons = NEXT_RAW_CMP(raw_cons); - if (rx_pkts == budget) + if (rx_pkts && rx_pkts == budget) break; } @@ -2027,8 +2030,12 @@ static int bnxt_poll(struct napi_struct *napi, int budget) while (1) { work_done += bnxt_poll_work(bp, bnapi, budget - work_done); - if (work_done >= budget) + if (work_done >= budget) { + if (!budget) + BNXT_CP_DB_REARM(cpr->cp_doorbell, + cpr->cp_raw_cons); break; + } if (!bnxt_has_work(bp, cpr)) { if (napi_complete_done(napi, work_done)) From d4ce58082f206bf6e7d697380c7bc5480a8b0264 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Maciej=20=C5=BBenczykowski?= Date: Tue, 25 Sep 2018 21:59:28 -0700 Subject: [PATCH 1363/1762] net-tcp: /proc/sys/net/ipv4/tcp_probe_interval is a u32 not int MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit (fix documentation and sysctl access to treat it as such) Tested: # zcat /proc/config.gz | egrep ^CONFIG_HZ CONFIG_HZ_1000=y CONFIG_HZ=1000 # echo $[(1<<32)/1000 + 1] | tee /proc/sys/net/ipv4/tcp_probe_interval 4294968 tee: /proc/sys/net/ipv4/tcp_probe_interval: Invalid argument # echo $[(1<<32)/1000] | tee /proc/sys/net/ipv4/tcp_probe_interval 4294967 # echo 0 | tee /proc/sys/net/ipv4/tcp_probe_interval # echo -1 | tee /proc/sys/net/ipv4/tcp_probe_interval -1 tee: /proc/sys/net/ipv4/tcp_probe_interval: Invalid argument Signed-off-by: Maciej Żenczykowski Signed-off-by: David S. Miller --- Documentation/networking/ip-sysctl.txt | 2 +- net/ipv4/sysctl_net_ipv4.c | 6 ++++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 8313a636dd53..960de8fe3f40 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -425,7 +425,7 @@ tcp_mtu_probing - INTEGER 1 - Disabled by default, enabled when an ICMP black hole detected 2 - Always enabled, use initial MSS of tcp_base_mss. -tcp_probe_interval - INTEGER +tcp_probe_interval - UNSIGNED INTEGER Controls how often to start TCP Packetization-Layer Path MTU Discovery reprobe. The default is reprobing every 10 minutes as per RFC4821. diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index b92f422f2fa8..891ed2f91467 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -48,6 +48,7 @@ static int tcp_syn_retries_max = MAX_TCP_SYNCNT; static int ip_ping_group_range_min[] = { 0, 0 }; static int ip_ping_group_range_max[] = { GID_T_MAX, GID_T_MAX }; static int comp_sack_nr_max = 255; +static u32 u32_max_div_HZ = UINT_MAX / HZ; /* obsolete */ static int sysctl_tcp_low_latency __read_mostly; @@ -745,9 +746,10 @@ static struct ctl_table ipv4_net_table[] = { { .procname = "tcp_probe_interval", .data = &init_net.ipv4.sysctl_tcp_probe_interval, - .maxlen = sizeof(int), + .maxlen = sizeof(u32), .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = proc_douintvec_minmax, + .extra2 = &u32_max_div_HZ, }, { .procname = "igmp_link_local_mcast_reports", From 1222a16014888ed9733c11e221730d4a8196222b Mon Sep 17 00:00:00 2001 From: Masashi Honma Date: Tue, 25 Sep 2018 11:15:01 +0900 Subject: [PATCH 1364/1762] nl80211: Fix possible Spectre-v1 for CQM RSSI thresholds Use array_index_nospec() to sanitize i with respect to speculation. Note that the user doesn't control i directly, but can make it out of bounds by not finding a threshold in the array. Signed-off-by: Masashi Honma [add note about user control, as explained by Masashi] Signed-off-by: Johannes Berg --- net/wireless/nl80211.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index bd26230de63e..176edfefcbaa 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -10231,7 +10231,7 @@ static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev, struct wireless_dev *wdev = dev->ieee80211_ptr; s32 last, low, high; u32 hyst; - int i, n; + int i, n, low_index; int err; /* RSSI reporting disabled? */ @@ -10268,10 +10268,19 @@ static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev, if (last < wdev->cqm_config->rssi_thresholds[i]) break; - low = i > 0 ? - (wdev->cqm_config->rssi_thresholds[i - 1] - hyst) : S32_MIN; - high = i < n ? - (wdev->cqm_config->rssi_thresholds[i] + hyst - 1) : S32_MAX; + low_index = i - 1; + if (low_index >= 0) { + low_index = array_index_nospec(low_index, n); + low = wdev->cqm_config->rssi_thresholds[low_index] - hyst; + } else { + low = S32_MIN; + } + if (i < n) { + i = array_index_nospec(i, n); + high = wdev->cqm_config->rssi_thresholds[i] + hyst - 1; + } else { + high = S32_MAX; + } return rdev_set_cqm_rssi_range_config(rdev, dev, low, high); } From 52bf4a900d9cede3eb14982d0f2c5e6db6d97cc3 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 25 Apr 2018 12:14:39 +0200 Subject: [PATCH 1365/1762] clocksource/drivers/timer-atmel-pit: Properly handle error cases The smatch utility reports a possible leak: smatch warnings: drivers/clocksource/timer-atmel-pit.c:183 at91sam926x_pit_dt_init() warn: possible memory leak of 'data' Ensure data is freed before exiting with an error. Reported-by: Dan Carpenter Signed-off-by: Alexandre Belloni Cc: stable@vger.kernel.org Signed-off-by: Daniel Lezcano --- drivers/clocksource/timer-atmel-pit.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/drivers/clocksource/timer-atmel-pit.c b/drivers/clocksource/timer-atmel-pit.c index ec8a4376f74f..2fab18fae4fc 100644 --- a/drivers/clocksource/timer-atmel-pit.c +++ b/drivers/clocksource/timer-atmel-pit.c @@ -180,26 +180,29 @@ static int __init at91sam926x_pit_dt_init(struct device_node *node) data->base = of_iomap(node, 0); if (!data->base) { pr_err("Could not map PIT address\n"); - return -ENXIO; + ret = -ENXIO; + goto exit; } data->mck = of_clk_get(node, 0); if (IS_ERR(data->mck)) { pr_err("Unable to get mck clk\n"); - return PTR_ERR(data->mck); + ret = PTR_ERR(data->mck); + goto exit; } ret = clk_prepare_enable(data->mck); if (ret) { pr_err("Unable to enable mck\n"); - return ret; + goto exit; } /* Get the interrupts property */ data->irq = irq_of_parse_and_map(node, 0); if (!data->irq) { pr_err("Unable to get IRQ from DT\n"); - return -EINVAL; + ret = -EINVAL; + goto exit; } /* @@ -227,7 +230,7 @@ static int __init at91sam926x_pit_dt_init(struct device_node *node) ret = clocksource_register_hz(&data->clksrc, pit_rate); if (ret) { pr_err("Failed to register clocksource\n"); - return ret; + goto exit; } /* Set up irq handler */ @@ -236,7 +239,8 @@ static int __init at91sam926x_pit_dt_init(struct device_node *node) "at91_tick", data); if (ret) { pr_err("Unable to setup IRQ\n"); - return ret; + clocksource_unregister(&data->clksrc); + goto exit; } /* Set up and register clockevents */ @@ -254,6 +258,10 @@ static int __init at91sam926x_pit_dt_init(struct device_node *node) clockevents_register_device(&data->clkevt); return 0; + +exit: + kfree(data); + return ret; } TIMER_OF_DECLARE(at91sam926x_pit, "atmel,at91sam9260-pit", at91sam926x_pit_dt_init); From 659902db7008f233e3d514c774b5ff3d46c8edd8 Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Fri, 14 Sep 2018 13:04:37 +0800 Subject: [PATCH 1366/1762] ieee802154: ca8210: remove redundant condition check before debugfs_remove debugfs_remove has taken the IS_ERR into account. Just remove the unnecessary condition. Signed-off-by: zhong jiang Signed-off-by: Stefan Schmidt --- drivers/net/ieee802154/ca8210.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c index e21279dde85c..0ff5a403a8dc 100644 --- a/drivers/net/ieee802154/ca8210.c +++ b/drivers/net/ieee802154/ca8210.c @@ -3043,8 +3043,7 @@ static void ca8210_test_interface_clear(struct ca8210_priv *priv) { struct ca8210_test *test = &priv->test; - if (!IS_ERR(test->ca8210_dfs_spi_int)) - debugfs_remove(test->ca8210_dfs_spi_int); + debugfs_remove(test->ca8210_dfs_spi_int); kfifo_free(&test->up_fifo); dev_info(&priv->spi->dev, "Test interface removed\n"); } From 092ffc51fb3f9b8369e737c9320bf0bffb2c898f Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 27 Sep 2018 15:13:07 +0100 Subject: [PATCH 1367/1762] rxrpc: Remove dup code from rxrpc_find_connection_rcu() rxrpc_find_connection_rcu() initialises variable k twice with the same information. Remove one of the initialisations. Signed-off-by: David Howells --- net/rxrpc/conn_object.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/net/rxrpc/conn_object.c b/net/rxrpc/conn_object.c index 77440a356b14..1746b48cb165 100644 --- a/net/rxrpc/conn_object.c +++ b/net/rxrpc/conn_object.c @@ -85,9 +85,6 @@ struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *local, if (rxrpc_extract_addr_from_skb(local, &srx, skb) < 0) goto not_found; - k.epoch = sp->hdr.epoch; - k.cid = sp->hdr.cid & RXRPC_CIDMASK; - /* We may have to handle mixing IPv4 and IPv6 */ if (srx.transport.family != local->srx.transport.family) { pr_warn_ratelimited("AF_RXRPC: Protocol mismatch %u not %u\n", From f151ba989d149bbdfc90e5405724bbea094f9b17 Mon Sep 17 00:00:00 2001 From: Boris Ostrovsky Date: Sat, 22 Sep 2018 15:55:49 -0400 Subject: [PATCH 1368/1762] xen/blkfront: When purging persistent grants, keep them in the buffer Commit a46b53672b2c ("xen/blkfront: cleanup stale persistent grants") added support for purging persistent grants when they are not in use. As part of the purge, the grants were removed from the grant buffer, This eventually causes the buffer to become empty, with BUG_ON triggered in get_free_grant(). This can be observed even on an idle system, within 20-30 minutes. We should keep the grants in the buffer when purging, and only free the grant ref. Fixes: a46b53672b2c ("xen/blkfront: cleanup stale persistent grants") Reviewed-by: Juergen Gross Signed-off-by: Boris Ostrovsky Signed-off-by: Jens Axboe --- drivers/block/xen-blkfront.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index a71d817e900d..3b441fe69c0d 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -2667,11 +2667,9 @@ static void purge_persistent_grants(struct blkfront_info *info) gnttab_query_foreign_access(gnt_list_entry->gref)) continue; - list_del(&gnt_list_entry->node); gnttab_end_foreign_access(gnt_list_entry->gref, 0, 0UL); + gnt_list_entry->gref = GRANT_INVALID_REF; rinfo->persistent_gnts_c--; - __free_page(gnt_list_entry->page); - kfree(gnt_list_entry); } spin_unlock_irqrestore(&rinfo->ring_lock, flags); From c98e16b2fa1202dd8c66900823591cd110a1a213 Mon Sep 17 00:00:00 2001 From: Eric Farman Date: Fri, 21 Sep 2018 22:40:12 +0200 Subject: [PATCH 1369/1762] s390/cio: Convert ccw_io_region to pointer In the event that we want to change the layout of the ccw_io_region in the future[1], it might be easier to work with it as a pointer within the vfio_ccw_private struct rather than an embedded struct. [1] https://patchwork.kernel.org/comment/22228541/ Signed-off-by: Eric Farman Message-Id: <20180921204013.95804-2-farman@linux.ibm.com> Signed-off-by: Cornelia Huck --- drivers/s390/cio/vfio_ccw_drv.c | 12 +++++++++++- drivers/s390/cio/vfio_ccw_fsm.c | 6 +++--- drivers/s390/cio/vfio_ccw_ops.c | 4 ++-- drivers/s390/cio/vfio_ccw_private.h | 2 +- 4 files changed, 17 insertions(+), 7 deletions(-) diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c index 770fa9cfc310..f48e6f84eefe 100644 --- a/drivers/s390/cio/vfio_ccw_drv.c +++ b/drivers/s390/cio/vfio_ccw_drv.c @@ -79,7 +79,7 @@ static void vfio_ccw_sch_io_todo(struct work_struct *work) cp_update_scsw(&private->cp, &irb->scsw); cp_free(&private->cp); } - memcpy(private->io_region.irb_area, irb, sizeof(*irb)); + memcpy(private->io_region->irb_area, irb, sizeof(*irb)); if (private->io_trigger) eventfd_signal(private->io_trigger, 1); @@ -114,6 +114,14 @@ static int vfio_ccw_sch_probe(struct subchannel *sch) private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA); if (!private) return -ENOMEM; + + private->io_region = kzalloc(sizeof(*private->io_region), + GFP_KERNEL | GFP_DMA); + if (!private->io_region) { + kfree(private); + return -ENOMEM; + } + private->sch = sch; dev_set_drvdata(&sch->dev, private); @@ -139,6 +147,7 @@ out_disable: cio_disable_subchannel(sch); out_free: dev_set_drvdata(&sch->dev, NULL); + kfree(private->io_region); kfree(private); return ret; } @@ -153,6 +162,7 @@ static int vfio_ccw_sch_remove(struct subchannel *sch) dev_set_drvdata(&sch->dev, NULL); + kfree(private->io_region); kfree(private); return 0; diff --git a/drivers/s390/cio/vfio_ccw_fsm.c b/drivers/s390/cio/vfio_ccw_fsm.c index 797a82731159..f94aa01f9c36 100644 --- a/drivers/s390/cio/vfio_ccw_fsm.c +++ b/drivers/s390/cio/vfio_ccw_fsm.c @@ -93,13 +93,13 @@ static void fsm_io_error(struct vfio_ccw_private *private, enum vfio_ccw_event event) { pr_err("vfio-ccw: FSM: I/O request from state:%d\n", private->state); - private->io_region.ret_code = -EIO; + private->io_region->ret_code = -EIO; } static void fsm_io_busy(struct vfio_ccw_private *private, enum vfio_ccw_event event) { - private->io_region.ret_code = -EBUSY; + private->io_region->ret_code = -EBUSY; } static void fsm_disabled_irq(struct vfio_ccw_private *private, @@ -126,7 +126,7 @@ static void fsm_io_request(struct vfio_ccw_private *private, { union orb *orb; union scsw *scsw = &private->scsw; - struct ccw_io_region *io_region = &private->io_region; + struct ccw_io_region *io_region = private->io_region; struct mdev_device *mdev = private->mdev; char *errstr = "request"; diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c index 41eeb57d68a3..f673e106c041 100644 --- a/drivers/s390/cio/vfio_ccw_ops.c +++ b/drivers/s390/cio/vfio_ccw_ops.c @@ -174,7 +174,7 @@ static ssize_t vfio_ccw_mdev_read(struct mdev_device *mdev, return -EINVAL; private = dev_get_drvdata(mdev_parent_dev(mdev)); - region = &private->io_region; + region = private->io_region; if (copy_to_user(buf, (void *)region + *ppos, count)) return -EFAULT; @@ -196,7 +196,7 @@ static ssize_t vfio_ccw_mdev_write(struct mdev_device *mdev, if (private->state != VFIO_CCW_STATE_IDLE) return -EACCES; - region = &private->io_region; + region = private->io_region; if (copy_from_user((void *)region + *ppos, buf, count)) return -EFAULT; diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h index 78a66d96756b..078e46f9623d 100644 --- a/drivers/s390/cio/vfio_ccw_private.h +++ b/drivers/s390/cio/vfio_ccw_private.h @@ -41,7 +41,7 @@ struct vfio_ccw_private { atomic_t avail; struct mdev_device *mdev; struct notifier_block nb; - struct ccw_io_region io_region; + struct ccw_io_region *io_region; struct channel_program cp; struct irb irb; From bf42daed6bd136774415ae6d26c8475152f92b54 Mon Sep 17 00:00:00 2001 From: Eric Farman Date: Fri, 21 Sep 2018 22:40:13 +0200 Subject: [PATCH 1370/1762] s390/cio: Refactor alloc of ccw_io_region If I attach a vfio-ccw device to my guest, I get the following warning on the host when the host kernel is CONFIG_HARDENED_USERCOPY=y [250757.595325] Bad or missing usercopy whitelist? Kernel memory overwrite attempt detected to SLUB object 'dma-kmalloc-512' (offset 64, size 124)! [250757.595365] WARNING: CPU: 2 PID: 10958 at mm/usercopy.c:81 usercopy_warn+0xac/0xd8 [250757.595369] Modules linked in: kvm vhost_net vhost tap xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack libcrc32c devlink tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables sunrpc dm_multipath s390_trng crc32_vx_s390 ghash_s390 prng aes_s390 des_s390 des_generic sha512_s390 sha1_s390 eadm_sch tape_3590 tape tape_class qeth_l2 qeth ccwgroup vfio_ccw vfio_mdev zcrypt_cex4 mdev vfio_iommu_type1 zcrypt vfio sha256_s390 sha_common zfcp scsi_transport_fc qdio dasd_eckd_mod dasd_mod [250757.595424] CPU: 2 PID: 10958 Comm: CPU 2/KVM Not tainted 4.18.0-derp #2 [250757.595426] Hardware name: IBM 3906 M05 780 (LPAR) ...snip regs... [250757.595523] Call Trace: [250757.595529] ([<0000000000349210>] usercopy_warn+0xa8/0xd8) [250757.595535] [<000000000032daaa>] __check_heap_object+0xfa/0x160 [250757.595540] [<0000000000349396>] __check_object_size+0x156/0x1d0 [250757.595547] [<000003ff80332d04>] vfio_ccw_mdev_write+0x74/0x148 [vfio_ccw] [250757.595552] [<000000000034ed12>] __vfs_write+0x3a/0x188 [250757.595556] [<000000000034f040>] vfs_write+0xa8/0x1b8 [250757.595559] [<000000000034f4e6>] ksys_pwrite64+0x86/0xc0 [250757.595568] [<00000000008959a0>] system_call+0xdc/0x2b0 [250757.595570] Last Breaking-Event-Address: [250757.595573] [<0000000000349210>] usercopy_warn+0xa8/0xd8 While vfio_ccw_mdev_{write|read} validates that the input position/count does not run over the ccw_io_region struct, the usercopy code that does copy_{to|from}_user doesn't necessarily know this. It sees the variable length and gets worried that it's affecting a normal kmalloc'd struct, and generates the above warning. Adjust how the ccw_io_region is alloc'd with a whitelist to remove this warning. The boundary checking will continue to do its thing. Signed-off-by: Eric Farman Message-Id: <20180921204013.95804-3-farman@linux.ibm.com> Signed-off-by: Cornelia Huck --- drivers/s390/cio/vfio_ccw_drv.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c index f48e6f84eefe..f47d16b5810b 100644 --- a/drivers/s390/cio/vfio_ccw_drv.c +++ b/drivers/s390/cio/vfio_ccw_drv.c @@ -22,6 +22,7 @@ #include "vfio_ccw_private.h" struct workqueue_struct *vfio_ccw_work_q; +struct kmem_cache *vfio_ccw_io_region; /* * Helpers @@ -115,8 +116,8 @@ static int vfio_ccw_sch_probe(struct subchannel *sch) if (!private) return -ENOMEM; - private->io_region = kzalloc(sizeof(*private->io_region), - GFP_KERNEL | GFP_DMA); + private->io_region = kmem_cache_zalloc(vfio_ccw_io_region, + GFP_KERNEL | GFP_DMA); if (!private->io_region) { kfree(private); return -ENOMEM; @@ -147,7 +148,7 @@ out_disable: cio_disable_subchannel(sch); out_free: dev_set_drvdata(&sch->dev, NULL); - kfree(private->io_region); + kmem_cache_free(vfio_ccw_io_region, private->io_region); kfree(private); return ret; } @@ -162,7 +163,7 @@ static int vfio_ccw_sch_remove(struct subchannel *sch) dev_set_drvdata(&sch->dev, NULL); - kfree(private->io_region); + kmem_cache_free(vfio_ccw_io_region, private->io_region); kfree(private); return 0; @@ -242,10 +243,20 @@ static int __init vfio_ccw_sch_init(void) if (!vfio_ccw_work_q) return -ENOMEM; + vfio_ccw_io_region = kmem_cache_create_usercopy("vfio_ccw_io_region", + sizeof(struct ccw_io_region), 0, + SLAB_ACCOUNT, 0, + sizeof(struct ccw_io_region), NULL); + if (!vfio_ccw_io_region) { + destroy_workqueue(vfio_ccw_work_q); + return -ENOMEM; + } + isc_register(VFIO_CCW_ISC); ret = css_driver_register(&vfio_ccw_sch_driver); if (ret) { isc_unregister(VFIO_CCW_ISC); + kmem_cache_destroy(vfio_ccw_io_region); destroy_workqueue(vfio_ccw_work_q); } @@ -256,6 +267,7 @@ static void __exit vfio_ccw_sch_exit(void) { css_driver_unregister(&vfio_ccw_sch_driver); isc_unregister(VFIO_CCW_ISC); + kmem_cache_destroy(vfio_ccw_io_region); destroy_workqueue(vfio_ccw_work_q); } module_init(vfio_ccw_sch_init); From d6a77ba0eb92d8ffa4b05a442fc20d0a9b11c4c4 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 27 Sep 2018 14:41:30 +0200 Subject: [PATCH 1371/1762] Revert "drm/panel: Add device_link from panel device to DRM device" This reverts commit 0c08754b59da5557532d946599854e6df28edc22. commit 0c08754b59da ("drm/panel: Add device_link from panel device to DRM device") creates a circular dependency under these circumstances: 1. The panel depends on dsi-host because it is MIPI-DSI child device. 2. dsi-host depends on the drm parent device (connector->dev->dev) this should be allowed. 3. drm parent dev (connector->dev->dev) depends on the panel after this patch. This makes the dependency circular and while it appears it does not affect any in-tree drivers (they do not seem to have dsi hosts depending on the same parent device) this does not seem right. As noted in a response from Andrzej Hajda, the intent is likely to make the panel dependent on the DRM device (connector->dev) not its parent. But we have no way of doing that since the DRM device doesn't contain any struct device on its own (arguably it should). Revert this until a proper approach is figured out. Cc: Jyri Sarha Cc: Eric Anholt Cc: Andrzej Hajda Signed-off-by: Linus Walleij Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20180927124130.9102-1-linus.walleij@linaro.org --- drivers/gpu/drm/drm_panel.c | 10 ---------- include/drm/drm_panel.h | 1 - 2 files changed, 11 deletions(-) diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c index b902361dee6e..1d9a9d2fe0e0 100644 --- a/drivers/gpu/drm/drm_panel.c +++ b/drivers/gpu/drm/drm_panel.c @@ -24,7 +24,6 @@ #include #include -#include #include #include @@ -105,13 +104,6 @@ int drm_panel_attach(struct drm_panel *panel, struct drm_connector *connector) if (panel->connector) return -EBUSY; - panel->link = device_link_add(connector->dev->dev, panel->dev, 0); - if (!panel->link) { - dev_err(panel->dev, "failed to link panel to %s\n", - dev_name(connector->dev->dev)); - return -EINVAL; - } - panel->connector = connector; panel->drm = connector->dev; @@ -133,8 +125,6 @@ EXPORT_SYMBOL(drm_panel_attach); */ int drm_panel_detach(struct drm_panel *panel) { - device_link_del(panel->link); - panel->connector = NULL; panel->drm = NULL; diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h index 582a0ec0aa70..777814755fa6 100644 --- a/include/drm/drm_panel.h +++ b/include/drm/drm_panel.h @@ -89,7 +89,6 @@ struct drm_panel { struct drm_device *drm; struct drm_connector *connector; struct device *dev; - struct device_link *link; const struct drm_panel_funcs *funcs; From 61ea6f5831974ebd1a57baffd7cc30600a2e26fc Mon Sep 17 00:00:00 2001 From: Rex Zhu Date: Thu, 27 Sep 2018 20:48:39 +0800 Subject: [PATCH 1372/1762] drm/amdgpu: Fix vce work queue was not cancelled when suspend MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The vce cancel_delayed_work_sync never be called. driver call the function in error path. This caused the A+A suspend hang when runtime pm enebled. As we will visit the smu in the idle queue. this will cause smu hang because the dgpu has been suspend, and the dgpu also will be waked up. As the smu has been hang, so the dgpu resume will failed. Reviewed-by: Christian König Reviewed-by: Feifei Xu Signed-off-by: Rex Zhu Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 3 ++- drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 4 ++-- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c index 0cc5190f4f36..5f3f54073818 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c @@ -258,6 +258,8 @@ int amdgpu_vce_suspend(struct amdgpu_device *adev) { int i; + cancel_delayed_work_sync(&adev->vce.idle_work); + if (adev->vce.vcpu_bo == NULL) return 0; @@ -268,7 +270,6 @@ int amdgpu_vce_suspend(struct amdgpu_device *adev) if (i == AMDGPU_MAX_VCE_HANDLES) return 0; - cancel_delayed_work_sync(&adev->vce.idle_work); /* TODO: suspending running encoding sessions isn't supported */ return -EINVAL; } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c index fd654a4406db..400fc74bbae2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c @@ -153,11 +153,11 @@ int amdgpu_vcn_suspend(struct amdgpu_device *adev) unsigned size; void *ptr; + cancel_delayed_work_sync(&adev->vcn.idle_work); + if (adev->vcn.vcpu_bo == NULL) return 0; - cancel_delayed_work_sync(&adev->vcn.idle_work); - size = amdgpu_bo_size(adev->vcn.vcpu_bo); ptr = adev->vcn.cpu_addr; From 599760d6d0abbab71f9726b49858d2ec45e74c0a Mon Sep 17 00:00:00 2001 From: Roman Li Date: Wed, 26 Sep 2018 13:42:16 -0400 Subject: [PATCH 1373/1762] drm/amd/display: Fix Vega10 lightup on S3 resume [Why] There have been a few reports of Vega10 display remaining blank after S3 resume. The regression is caused by workaround for mode change on Vega10 - skip set_bandwidth if stream count is 0. As a result we skipped dispclk reset on suspend, thus on resume we may skip the clock update assuming it hasn't been changed. On some systems it causes display blank or 'out of range'. [How] Revert "drm/amd/display: Fix Vega10 black screen after mode change" Verified that it hadn't cause mode change regression. Signed-off-by: Roman Li Reviewed-by: Sun peng Li Acked-by: Leo Li Signed-off-by: Alex Deucher --- .../drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 2 +- .../drm/amd/display/dc/dce110/dce110_hw_sequencer.h | 5 ----- .../drm/amd/display/dc/dce120/dce120_hw_sequencer.c | 12 ------------ 3 files changed, 1 insertion(+), 18 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index 14384d9675a8..b2f308766a9e 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -2560,7 +2560,7 @@ static void pplib_apply_display_requirements( dc->prev_display_config = *pp_display_cfg; } -void dce110_set_bandwidth( +static void dce110_set_bandwidth( struct dc *dc, struct dc_state *context, bool decrease_allowed) diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h index e4c5db75c4c6..d6db3dbd9015 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h @@ -68,11 +68,6 @@ void dce110_fill_display_configs( const struct dc_state *context, struct dm_pp_display_configuration *pp_display_cfg); -void dce110_set_bandwidth( - struct dc *dc, - struct dc_state *context, - bool decrease_allowed); - uint32_t dce110_get_min_vblank_time_us(const struct dc_state *context); void dp_receiver_power_ctrl(struct dc_link *link, bool on); diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c index 5853522a6182..eb0f5f9a973b 100644 --- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c @@ -244,17 +244,6 @@ static void dce120_update_dchub( dh_data->dchub_info_valid = false; } -static void dce120_set_bandwidth( - struct dc *dc, - struct dc_state *context, - bool decrease_allowed) -{ - if (context->stream_count <= 0) - return; - - dce110_set_bandwidth(dc, context, decrease_allowed); -} - void dce120_hw_sequencer_construct(struct dc *dc) { /* All registers used by dce11.2 match those in dce11 in offset and @@ -263,6 +252,5 @@ void dce120_hw_sequencer_construct(struct dc *dc) dce110_hw_sequencer_construct(dc); dc->hwss.enable_display_power_gating = dce120_enable_display_power_gating; dc->hwss.update_dchub = dce120_update_dchub; - dc->hwss.set_bandwidth = dce120_set_bandwidth; } From fbbdadf2faf17cd88e9c447701495540377c5743 Mon Sep 17 00:00:00 2001 From: Bhawanpreet Lakha Date: Wed, 26 Sep 2018 13:42:10 -0400 Subject: [PATCH 1374/1762] drm/amd/display: Fix Edid emulation for linux [Why] EDID emulation didn't work properly for linux, as we stop programming if nothing is connected physically. [How] We get a flag from DRM when we want to do edid emulation. We check if this flag is true and nothing is connected physically, if so we only program the front end using VIRTUAL_SIGNAL. Signed-off-by: Bhawanpreet Lakha Reviewed-by: Harry Wentland Acked-by: Leo Li Signed-off-by: Alex Deucher --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 139 +++++++++++++++++- drivers/gpu/drm/amd/display/dc/core/dc_link.c | 4 +- drivers/gpu/drm/amd/display/dc/dc_link.h | 1 + 3 files changed, 137 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 800f481a6995..96875950845a 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -641,6 +641,87 @@ amdgpu_dm_find_first_crtc_matching_connector(struct drm_atomic_state *state, return NULL; } +static void emulated_link_detect(struct dc_link *link) +{ + struct dc_sink_init_data sink_init_data = { 0 }; + struct display_sink_capability sink_caps = { 0 }; + enum dc_edid_status edid_status; + struct dc_context *dc_ctx = link->ctx; + struct dc_sink *sink = NULL; + struct dc_sink *prev_sink = NULL; + + link->type = dc_connection_none; + prev_sink = link->local_sink; + + if (prev_sink != NULL) + dc_sink_retain(prev_sink); + + switch (link->connector_signal) { + case SIGNAL_TYPE_HDMI_TYPE_A: { + sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; + sink_caps.signal = SIGNAL_TYPE_HDMI_TYPE_A; + break; + } + + case SIGNAL_TYPE_DVI_SINGLE_LINK: { + sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; + sink_caps.signal = SIGNAL_TYPE_DVI_SINGLE_LINK; + break; + } + + case SIGNAL_TYPE_DVI_DUAL_LINK: { + sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; + sink_caps.signal = SIGNAL_TYPE_DVI_DUAL_LINK; + break; + } + + case SIGNAL_TYPE_LVDS: { + sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; + sink_caps.signal = SIGNAL_TYPE_LVDS; + break; + } + + case SIGNAL_TYPE_EDP: { + sink_caps.transaction_type = + DDC_TRANSACTION_TYPE_I2C_OVER_AUX; + sink_caps.signal = SIGNAL_TYPE_EDP; + break; + } + + case SIGNAL_TYPE_DISPLAY_PORT: { + sink_caps.transaction_type = + DDC_TRANSACTION_TYPE_I2C_OVER_AUX; + sink_caps.signal = SIGNAL_TYPE_VIRTUAL; + break; + } + + default: + DC_ERROR("Invalid connector type! signal:%d\n", + link->connector_signal); + return; + } + + sink_init_data.link = link; + sink_init_data.sink_signal = sink_caps.signal; + + sink = dc_sink_create(&sink_init_data); + if (!sink) { + DC_ERROR("Failed to create sink!\n"); + return; + } + + link->local_sink = sink; + + edid_status = dm_helpers_read_local_edid( + link->ctx, + link, + sink); + + if (edid_status != EDID_OK) + DC_ERROR("Failed to read EDID"); + +} + static int dm_resume(void *handle) { struct amdgpu_device *adev = handle; @@ -654,6 +735,7 @@ static int dm_resume(void *handle) struct drm_plane *plane; struct drm_plane_state *new_plane_state; struct dm_plane_state *dm_new_plane_state; + enum dc_connection_type new_connection_type = dc_connection_none; int ret; int i; @@ -684,7 +766,13 @@ static int dm_resume(void *handle) continue; mutex_lock(&aconnector->hpd_lock); - dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD); + if (!dc_link_detect_sink(aconnector->dc_link, &new_connection_type)) + DRM_ERROR("KMS: Failed to detect connector\n"); + + if (aconnector->base.force && new_connection_type == dc_connection_none) + emulated_link_detect(aconnector->dc_link); + else + dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD); if (aconnector->fake_enable && aconnector->dc_link->local_sink) aconnector->fake_enable = false; @@ -922,6 +1010,7 @@ static void handle_hpd_irq(void *param) struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param; struct drm_connector *connector = &aconnector->base; struct drm_device *dev = connector->dev; + enum dc_connection_type new_connection_type = dc_connection_none; /* In case of failure or MST no need to update connector status or notify the OS * since (for MST case) MST does this in it's own context. @@ -931,7 +1020,21 @@ static void handle_hpd_irq(void *param) if (aconnector->fake_enable) aconnector->fake_enable = false; - if (dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD)) { + if (!dc_link_detect_sink(aconnector->dc_link, &new_connection_type)) + DRM_ERROR("KMS: Failed to detect connector\n"); + + if (aconnector->base.force && new_connection_type == dc_connection_none) { + emulated_link_detect(aconnector->dc_link); + + + drm_modeset_lock_all(dev); + dm_restore_drm_connector_state(dev, connector); + drm_modeset_unlock_all(dev); + + if (aconnector->base.force == DRM_FORCE_UNSPECIFIED) + drm_kms_helper_hotplug_event(dev); + + } else if (dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD)) { amdgpu_dm_update_connector_after_detect(aconnector); @@ -1031,6 +1134,7 @@ static void handle_hpd_rx_irq(void *param) struct drm_device *dev = connector->dev; struct dc_link *dc_link = aconnector->dc_link; bool is_mst_root_connector = aconnector->mst_mgr.mst_state; + enum dc_connection_type new_connection_type = dc_connection_none; /* TODO:Temporary add mutex to protect hpd interrupt not have a gpio * conflict, after implement i2c helper, this mutex should be @@ -1042,7 +1146,24 @@ static void handle_hpd_rx_irq(void *param) if (dc_link_handle_hpd_rx_irq(dc_link, NULL, NULL) && !is_mst_root_connector) { /* Downstream Port status changed. */ - if (dc_link_detect(dc_link, DETECT_REASON_HPDRX)) { + if (!dc_link_detect_sink(dc_link, &new_connection_type)) + DRM_ERROR("KMS: Failed to detect connector\n"); + + if (aconnector->base.force && new_connection_type == dc_connection_none) { + emulated_link_detect(dc_link); + + if (aconnector->fake_enable) + aconnector->fake_enable = false; + + amdgpu_dm_update_connector_after_detect(aconnector); + + + drm_modeset_lock_all(dev); + dm_restore_drm_connector_state(dev, connector); + drm_modeset_unlock_all(dev); + + drm_kms_helper_hotplug_event(dev); + } else if (dc_link_detect(dc_link, DETECT_REASON_HPDRX)) { if (aconnector->fake_enable) aconnector->fake_enable = false; @@ -1433,6 +1554,7 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev) struct amdgpu_mode_info *mode_info = &adev->mode_info; uint32_t link_cnt; int32_t total_overlay_planes, total_primary_planes; + enum dc_connection_type new_connection_type = dc_connection_none; link_cnt = dm->dc->caps.max_links; if (amdgpu_dm_mode_config_init(dm->adev)) { @@ -1499,7 +1621,14 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev) link = dc_get_link_at_index(dm->dc, i); - if (dc_link_detect(link, DETECT_REASON_BOOT)) { + if (!dc_link_detect_sink(link, &new_connection_type)) + DRM_ERROR("KMS: Failed to detect connector\n"); + + if (aconnector->base.force && new_connection_type == dc_connection_none) { + emulated_link_detect(link); + amdgpu_dm_update_connector_after_detect(aconnector); + + } else if (dc_link_detect(link, DETECT_REASON_BOOT)) { amdgpu_dm_update_connector_after_detect(aconnector); register_backlight_device(dm, link); } @@ -2494,7 +2623,7 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector, if (dm_state && dm_state->freesync_capable) stream->ignore_msa_timing_param = true; finish: - if (sink && sink->sink_signal == SIGNAL_TYPE_VIRTUAL) + if (sink && sink->sink_signal == SIGNAL_TYPE_VIRTUAL && aconnector->base.force != DRM_FORCE_ON) dc_sink_release(sink); return stream; diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 37eaf72ace54..fced3c1c2ef5 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -195,7 +195,7 @@ static bool program_hpd_filter( return result; } -static bool detect_sink(struct dc_link *link, enum dc_connection_type *type) +bool dc_link_detect_sink(struct dc_link *link, enum dc_connection_type *type) { uint32_t is_hpd_high = 0; struct gpio *hpd_pin; @@ -604,7 +604,7 @@ bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason) if (link->connector_signal == SIGNAL_TYPE_VIRTUAL) return false; - if (false == detect_sink(link, &new_connection_type)) { + if (false == dc_link_detect_sink(link, &new_connection_type)) { BREAK_TO_DEBUGGER(); return false; } diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index d43cefbc43d3..1b48ab9aea89 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -215,6 +215,7 @@ void dc_link_enable_hpd_filter(struct dc_link *link, bool enable); bool dc_link_is_dp_sink_present(struct dc_link *link); +bool dc_link_detect_sink(struct dc_link *link, enum dc_connection_type *type); /* * DPCD access interfaces */ From d6d1cd2578c4da0764ad334e3411c1c1b1557f58 Mon Sep 17 00:00:00 2001 From: Xue Liu Date: Fri, 31 Aug 2018 23:46:41 +0200 Subject: [PATCH 1375/1762] ieee802154: mcr20a: Replace magic number with constants The combination of defined constants are used to present the state of IRQ so the magic numbers has been replaced. This is a simple coding style change which should have no impact on runtime code execution. Signed-off-by: Xue Liu Signed-off-by: Stefan Schmidt --- drivers/net/ieee802154/mcr20a.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/ieee802154/mcr20a.c b/drivers/net/ieee802154/mcr20a.c index e428277781ac..04891429a554 100644 --- a/drivers/net/ieee802154/mcr20a.c +++ b/drivers/net/ieee802154/mcr20a.c @@ -903,19 +903,19 @@ mcr20a_irq_clean_complete(void *context) switch (seq_state) { /* TX IRQ, RX IRQ and SEQ IRQ */ - case (0x03): + case (DAR_IRQSTS1_TXIRQ | DAR_IRQSTS1_SEQIRQ): if (lp->is_tx) { lp->is_tx = 0; dev_dbg(printdev(lp), "TX is done. No ACK\n"); mcr20a_handle_tx_complete(lp); } break; - case (0x05): + case (DAR_IRQSTS1_RXIRQ | DAR_IRQSTS1_SEQIRQ): /* rx is starting */ dev_dbg(printdev(lp), "RX is starting\n"); mcr20a_handle_rx(lp); break; - case (0x07): + case (DAR_IRQSTS1_RXIRQ | DAR_IRQSTS1_TXIRQ | DAR_IRQSTS1_SEQIRQ): if (lp->is_tx) { /* tx is done */ lp->is_tx = 0; @@ -927,7 +927,7 @@ mcr20a_irq_clean_complete(void *context) mcr20a_handle_rx(lp); } break; - case (0x01): + case (DAR_IRQSTS1_SEQIRQ): if (lp->is_tx) { dev_dbg(printdev(lp), "TX is starting\n"); mcr20a_handle_tx(lp); From 0f843e65d9eef4936929bb036c5f771fb261eea4 Mon Sep 17 00:00:00 2001 From: Guoju Fang Date: Thu, 27 Sep 2018 23:41:46 +0800 Subject: [PATCH 1376/1762] bcache: add separate workqueue for journal_write to avoid deadlock After write SSD completed, bcache schedules journal_write work to system_wq, which is a public workqueue in system, without WQ_MEM_RECLAIM flag. system_wq is also a bound wq, and there may be no idle kworker on current processor. Creating a new kworker may unfortunately need to reclaim memory first, by shrinking cache and slab used by vfs, which depends on bcache device. That's a deadlock. This patch create a new workqueue for journal_write with WQ_MEM_RECLAIM flag. It's rescuer thread will work to avoid the deadlock. Signed-off-by: Guoju Fang Cc: stable@vger.kernel.org Signed-off-by: Coly Li Signed-off-by: Jens Axboe --- drivers/md/bcache/bcache.h | 1 + drivers/md/bcache/journal.c | 6 +++--- drivers/md/bcache/super.c | 8 ++++++++ 3 files changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h index 83504dd8100a..954dad29e6e8 100644 --- a/drivers/md/bcache/bcache.h +++ b/drivers/md/bcache/bcache.h @@ -965,6 +965,7 @@ void bch_prio_write(struct cache *ca); void bch_write_bdev_super(struct cached_dev *dc, struct closure *parent); extern struct workqueue_struct *bcache_wq; +extern struct workqueue_struct *bch_journal_wq; extern struct mutex bch_register_lock; extern struct list_head bch_cache_sets; diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c index 6116bbf870d8..522c7426f3a0 100644 --- a/drivers/md/bcache/journal.c +++ b/drivers/md/bcache/journal.c @@ -485,7 +485,7 @@ static void do_journal_discard(struct cache *ca) closure_get(&ca->set->cl); INIT_WORK(&ja->discard_work, journal_discard_work); - schedule_work(&ja->discard_work); + queue_work(bch_journal_wq, &ja->discard_work); } } @@ -592,7 +592,7 @@ static void journal_write_done(struct closure *cl) : &j->w[0]; __closure_wake_up(&w->wait); - continue_at_nobarrier(cl, journal_write, system_wq); + continue_at_nobarrier(cl, journal_write, bch_journal_wq); } static void journal_write_unlock(struct closure *cl) @@ -627,7 +627,7 @@ static void journal_write_unlocked(struct closure *cl) spin_unlock(&c->journal.lock); btree_flush_write(c); - continue_at(cl, journal_write, system_wq); + continue_at(cl, journal_write, bch_journal_wq); return; } diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index 94c756c66bd7..30ba9aeb5ee8 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -47,6 +47,7 @@ static int bcache_major; static DEFINE_IDA(bcache_device_idx); static wait_queue_head_t unregister_wait; struct workqueue_struct *bcache_wq; +struct workqueue_struct *bch_journal_wq; #define BTREE_MAX_PAGES (256 * 1024 / PAGE_SIZE) /* limitation of partitions number on single bcache device */ @@ -2341,6 +2342,9 @@ static void bcache_exit(void) kobject_put(bcache_kobj); if (bcache_wq) destroy_workqueue(bcache_wq); + if (bch_journal_wq) + destroy_workqueue(bch_journal_wq); + if (bcache_major) unregister_blkdev(bcache_major, "bcache"); unregister_reboot_notifier(&reboot); @@ -2370,6 +2374,10 @@ static int __init bcache_init(void) if (!bcache_wq) goto err; + bch_journal_wq = alloc_workqueue("bch_journal", WQ_MEM_RECLAIM, 0); + if (!bch_journal_wq) + goto err; + bcache_kobj = kobject_create_and_add("bcache", fs_kobj); if (!bcache_kobj) goto err; From bdec8d7fa55e6f5314ed72e5a0b435d90ff90548 Mon Sep 17 00:00:00 2001 From: Kairui Song Date: Thu, 27 Sep 2018 20:38:45 +0800 Subject: [PATCH 1377/1762] x86/boot: Fix kexec booting failure in the SEV bit detection code Commit 1958b5fc4010 ("x86/boot: Add early boot support when running with SEV active") can occasionally cause system resets when kexec-ing a second kernel even if SEV is not active. That's because get_sev_encryption_bit() uses 32-bit rIP-relative addressing to read the value of enc_bit - a variable which caches a previously detected encryption bit position - but kexec may allocate the early boot code to a higher location, beyond the 32-bit addressing limit. In this case, garbage will be read and get_sev_encryption_bit() will return the wrong value, leading to accessing memory with the wrong encryption setting. Therefore, remove enc_bit, and thus get rid of the need to do 32-bit rIP-relative addressing in the first place. [ bp: massage commit message heavily. ] Fixes: 1958b5fc4010 ("x86/boot: Add early boot support when running with SEV active") Suggested-by: Borislav Petkov Signed-off-by: Kairui Song Signed-off-by: Borislav Petkov Reviewed-by: Tom Lendacky Cc: linux-kernel@vger.kernel.org Cc: tglx@linutronix.de Cc: mingo@redhat.com Cc: hpa@zytor.com Cc: brijesh.singh@amd.com Cc: kexec@lists.infradead.org Cc: dyoung@redhat.com Cc: bhe@redhat.com Cc: ghook@redhat.com Link: https://lkml.kernel.org/r/20180927123845.32052-1-kasong@redhat.com --- arch/x86/boot/compressed/mem_encrypt.S | 19 ------------------- 1 file changed, 19 deletions(-) diff --git a/arch/x86/boot/compressed/mem_encrypt.S b/arch/x86/boot/compressed/mem_encrypt.S index eaa843a52907..a480356e0ed8 100644 --- a/arch/x86/boot/compressed/mem_encrypt.S +++ b/arch/x86/boot/compressed/mem_encrypt.S @@ -25,20 +25,6 @@ ENTRY(get_sev_encryption_bit) push %ebx push %ecx push %edx - push %edi - - /* - * RIP-relative addressing is needed to access the encryption bit - * variable. Since we are running in 32-bit mode we need this call/pop - * sequence to get the proper relative addressing. - */ - call 1f -1: popl %edi - subl $1b, %edi - - movl enc_bit(%edi), %eax - cmpl $0, %eax - jge .Lsev_exit /* Check if running under a hypervisor */ movl $1, %eax @@ -69,15 +55,12 @@ ENTRY(get_sev_encryption_bit) movl %ebx, %eax andl $0x3f, %eax /* Return the encryption bit location */ - movl %eax, enc_bit(%edi) jmp .Lsev_exit .Lno_sev: xor %eax, %eax - movl %eax, enc_bit(%edi) .Lsev_exit: - pop %edi pop %edx pop %ecx pop %ebx @@ -113,8 +96,6 @@ ENTRY(set_sev_encryption_mask) ENDPROC(set_sev_encryption_mask) .data -enc_bit: - .int 0xffffffff #ifdef CONFIG_AMD_MEM_ENCRYPT .balign 8 From f52afc93cd018fe6910133a05d44671192d1aeb0 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 27 Sep 2018 13:23:32 +0200 Subject: [PATCH 1378/1762] dax: Fix deadlock in dax_lock_mapping_entry() When dax_lock_mapping_entry() has to sleep to obtain entry lock, it will fail to unlock mapping->i_pages spinlock and thus immediately deadlock against itself when retrying to grab the entry lock again. Fix the problem by unlocking mapping->i_pages before retrying. Fixes: c2a7d2a11552 ("filesystem-dax: Introduce dax_lock_mapping_entry()") Reported-by: Barret Rhoden Signed-off-by: Jan Kara Signed-off-by: Dan Williams --- fs/dax.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/dax.c b/fs/dax.c index f32d7125ad0f..e4ef8af31aa6 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -447,6 +447,7 @@ bool dax_lock_mapping_entry(struct page *page) xa_unlock_irq(&mapping->i_pages); break; } else if (IS_ERR(entry)) { + xa_unlock_irq(&mapping->i_pages); WARN_ON_ONCE(PTR_ERR(entry) != -EAGAIN); continue; } From 3baafeffa48a12b3cec9a0b6d4049fba02d53cea Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Tue, 25 Sep 2018 16:56:53 +0300 Subject: [PATCH 1379/1762] iwlwifi: 1000: set the TFD queue size .max_tfd_queue_size was ommited for 1000 card serries leading to oops in swiotlb. Fixes: 7b3e42ea2ead ("iwlwifi: support multiple tfd queue max sizes for different devices") Tested-by: Randy Dunlap Signed-off-by: Pavel Machek Signed-off-by: Emmanuel Grumbach Signed-off-by: Luca Coelho Signed-off-by: Kalle Valo --- drivers/net/wireless/intel/iwlwifi/cfg/1000.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/intel/iwlwifi/cfg/1000.c b/drivers/net/wireless/intel/iwlwifi/cfg/1000.c index 591687984962..497fd766d87c 100644 --- a/drivers/net/wireless/intel/iwlwifi/cfg/1000.c +++ b/drivers/net/wireless/intel/iwlwifi/cfg/1000.c @@ -51,6 +51,7 @@ static const struct iwl_base_params iwl1000_base_params = { .num_of_queues = IWLAGN_NUM_QUEUES, + .max_tfd_queue_size = 256, .eeprom_size = OTP_LOW_IMAGE_SIZE, .pll_cfg = true, .max_ll_items = OTP_MAX_LL_ITEMS_1000, From ce01a1575f45bf319e374592656441021a7f5823 Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Thu, 27 Sep 2018 14:39:19 -0400 Subject: [PATCH 1380/1762] rseq/selftests: fix parametrized test with -fpie On x86-64, the parametrized selftest code for rseq crashes with a segmentation fault when compiled with -fpie. This happens when the param_test binary is loaded at an address beyond 32-bit on x86-64. The issue is caused by use of a 32-bit register to hold the address of the loop counter variable. Fix this by using a 64-bit register to calculate the address of the loop counter variables as an offset from rip. Signed-off-by: Mathieu Desnoyers Acked-by: "Paul E . McKenney" Cc: # v4.18 Cc: Shuah Khan Cc: Thomas Gleixner Cc: Joel Fernandes Cc: Peter Zijlstra Cc: Catalin Marinas Cc: Dave Watson Cc: Will Deacon Cc: Andi Kleen Cc: linux-kselftest@vger.kernel.org Cc: "H . Peter Anvin" Cc: Chris Lameter Cc: Russell King Cc: Michael Kerrisk Cc: "Paul E . McKenney" Cc: Paul Turner Cc: Boqun Feng Cc: Josh Triplett Cc: Steven Rostedt Cc: Ben Maurer Cc: Andy Lutomirski Cc: Andrew Morton Cc: Linus Torvalds Signed-off-by: Shuah Khan (Samsung OSG) --- tools/testing/selftests/rseq/param_test.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) diff --git a/tools/testing/selftests/rseq/param_test.c b/tools/testing/selftests/rseq/param_test.c index 642d4e12abea..eec2663261f2 100644 --- a/tools/testing/selftests/rseq/param_test.c +++ b/tools/testing/selftests/rseq/param_test.c @@ -56,15 +56,13 @@ unsigned int yield_mod_cnt, nr_abort; printf(fmt, ## __VA_ARGS__); \ } while (0) -#if defined(__x86_64__) || defined(__i386__) +#ifdef __i386__ #define INJECT_ASM_REG "eax" #define RSEQ_INJECT_CLOBBER \ , INJECT_ASM_REG -#ifdef __i386__ - #define RSEQ_INJECT_ASM(n) \ "mov asm_loop_cnt_" #n ", %%" INJECT_ASM_REG "\n\t" \ "test %%" INJECT_ASM_REG ",%%" INJECT_ASM_REG "\n\t" \ @@ -76,9 +74,16 @@ unsigned int yield_mod_cnt, nr_abort; #elif defined(__x86_64__) +#define INJECT_ASM_REG_P "rax" +#define INJECT_ASM_REG "eax" + +#define RSEQ_INJECT_CLOBBER \ + , INJECT_ASM_REG_P \ + , INJECT_ASM_REG + #define RSEQ_INJECT_ASM(n) \ - "lea asm_loop_cnt_" #n "(%%rip), %%" INJECT_ASM_REG "\n\t" \ - "mov (%%" INJECT_ASM_REG "), %%" INJECT_ASM_REG "\n\t" \ + "lea asm_loop_cnt_" #n "(%%rip), %%" INJECT_ASM_REG_P "\n\t" \ + "mov (%%" INJECT_ASM_REG_P "), %%" INJECT_ASM_REG "\n\t" \ "test %%" INJECT_ASM_REG ",%%" INJECT_ASM_REG "\n\t" \ "jz 333f\n\t" \ "222:\n\t" \ @@ -86,10 +91,6 @@ unsigned int yield_mod_cnt, nr_abort; "jnz 222b\n\t" \ "333:\n\t" -#else -#error "Unsupported architecture" -#endif - #elif defined(__s390__) #define RSEQ_INJECT_INPUT \ From ff4ce2885af8f9e8e99864d78dbeb4673f089c76 Mon Sep 17 00:00:00 2001 From: Milian Wolff Date: Wed, 26 Sep 2018 15:52:05 +0200 Subject: [PATCH 1381/1762] perf report: Don't try to map ip to invalid map Fixes a crash when the report encounters an address that could not be associated with an mmaped region: #0 0x00005555557bdc4a in callchain_srcline (ip=, sym=0x0, map=0x0) at util/machine.c:2329 #1 unwind_entry (entry=entry@entry=0x7fffffff9180, arg=arg@entry=0x7ffff5642498) at util/machine.c:2329 #2 0x00005555558370af in entry (arg=0x7ffff5642498, cb=0x5555557bdb50 , thread=, ip=18446744073709551615) at util/unwind-libunwind-local.c:586 #3 get_entries (ui=ui@entry=0x7fffffff9620, cb=0x5555557bdb50 , arg=0x7ffff5642498, max_stack=) at util/unwind-libunwind-local.c:703 #4 0x0000555555837192 in _unwind__get_entries (cb=, arg=, thread=, data=, max_stack=) at util/unwind-libunwind-local.c:725 #5 0x00005555557c310f in thread__resolve_callchain_unwind (max_stack=127, sample=0x7fffffff9830, evsel=0x555555c7b3b0, cursor=0x7ffff5642498, thread=0x555555c7f6f0) at util/machine.c:2351 #6 thread__resolve_callchain (thread=0x555555c7f6f0, cursor=0x7ffff5642498, evsel=0x555555c7b3b0, sample=0x7fffffff9830, parent=0x7fffffff97b8, root_al=0x7fffffff9750, max_stack=127) at util/machine.c:2378 #7 0x00005555557ba4ee in sample__resolve_callchain (sample=, cursor=, parent=parent@entry=0x7fffffff97b8, evsel=, al=al@entry=0x7fffffff9750, max_stack=) at util/callchain.c:1085 Signed-off-by: Milian Wolff Tested-by: Sandipan Das Acked-by: Jiri Olsa Cc: Jin Yao Cc: Namhyung Kim Fixes: 2a9d5050dc84 ("perf script: Show correct offsets for DWARF-based unwinding") Link: http://lkml.kernel.org/r/20180926135207.30263-1-milian.wolff@kdab.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/machine.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index c4acd2001db0..0cb4f8bf3ca7 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -2312,7 +2312,7 @@ static int unwind_entry(struct unwind_entry *entry, void *arg) { struct callchain_cursor *cursor = arg; const char *srcline = NULL; - u64 addr; + u64 addr = entry->ip; if (symbol_conf.hide_unresolved && entry->sym == NULL) return 0; @@ -2324,7 +2324,8 @@ static int unwind_entry(struct unwind_entry *entry, void *arg) * Convert entry->ip from a virtual address to an offset in * its corresponding binary. */ - addr = map__map_ip(entry->map, entry->ip); + if (entry->map) + addr = map__map_ip(entry->map, entry->ip); srcline = callchain_srcline(entry->map, entry->sym, addr); return callchain_cursor_append(cursor, entry->ip, From 587562d0c7cd6861f4f90a2eb811cccb1a376f5f Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Wed, 26 Sep 2018 14:35:50 +0200 Subject: [PATCH 1382/1762] blk-mq: I/O and timer unplugs are inverted in blktrace trace_block_unplug() takes true for explicit unplugs and false for implicit unplugs. schedule() unplugs are implicit and should be reported as timer unplugs. While correct in the legacy code, this has been inverted in blk-mq since 4.11. Cc: stable@vger.kernel.org Fixes: bd166ef183c2 ("blk-mq-sched: add framework for MQ capable IO schedulers") Reviewed-by: Omar Sandoval Signed-off-by: Ilya Dryomov Signed-off-by: Jens Axboe --- block/blk-mq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index 85a1c1a59c72..e3c39ea8e17b 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1628,7 +1628,7 @@ void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule) BUG_ON(!rq->q); if (rq->mq_ctx != this_ctx) { if (this_ctx) { - trace_block_unplug(this_q, depth, from_schedule); + trace_block_unplug(this_q, depth, !from_schedule); blk_mq_sched_insert_requests(this_q, this_ctx, &ctx_list, from_schedule); @@ -1648,7 +1648,7 @@ void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule) * on 'ctx_list'. Do those. */ if (this_ctx) { - trace_block_unplug(this_q, depth, from_schedule); + trace_block_unplug(this_q, depth, !from_schedule); blk_mq_sched_insert_requests(this_q, this_ctx, &ctx_list, from_schedule); } From 853dc104e6a43cba9a7a87542bc6d8e3b74f0bc9 Mon Sep 17 00:00:00 2001 From: Laurentiu Tudor Date: Wed, 26 Sep 2018 16:22:30 +0300 Subject: [PATCH 1383/1762] soc: fsl: qbman: add APIs to retrieve the probing status Add a couple of new APIs to check the probing status of qman and bman: 'int bman_is_probed()' and 'int qman_is_probed()'. They return the following values. * 1 if qman/bman were probed correctly * 0 if qman/bman were not yet probed * -1 if probing of qman/bman failed Drivers that use qman/bman driver services are required to use these APIs before calling any functions exported by qman or bman drivers or otherwise they will crash the kernel. The APIs will be used in the following couple of qbman portal patches and later in the series in the dpaa1 ethernet driver. Signed-off-by: Laurentiu Tudor Signed-off-by: Li Yang --- drivers/soc/fsl/qbman/bman_ccsr.c | 11 +++++++++++ drivers/soc/fsl/qbman/qman_ccsr.c | 11 +++++++++++ include/soc/fsl/bman.h | 8 ++++++++ include/soc/fsl/qman.h | 8 ++++++++ 4 files changed, 38 insertions(+) diff --git a/drivers/soc/fsl/qbman/bman_ccsr.c b/drivers/soc/fsl/qbman/bman_ccsr.c index 05c42235dd41..7c3cc968053c 100644 --- a/drivers/soc/fsl/qbman/bman_ccsr.c +++ b/drivers/soc/fsl/qbman/bman_ccsr.c @@ -120,6 +120,7 @@ static void bm_set_memory(u64 ba, u32 size) */ static dma_addr_t fbpr_a; static size_t fbpr_sz; +static int __bman_probed; static int bman_fbpr(struct reserved_mem *rmem) { @@ -166,6 +167,12 @@ static irqreturn_t bman_isr(int irq, void *ptr) return IRQ_HANDLED; } +int bman_is_probed(void) +{ + return __bman_probed; +} +EXPORT_SYMBOL_GPL(bman_is_probed); + static int fsl_bman_probe(struct platform_device *pdev) { int ret, err_irq; @@ -175,6 +182,8 @@ static int fsl_bman_probe(struct platform_device *pdev) u16 id, bm_pool_cnt; u8 major, minor; + __bman_probed = -1; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(dev, "Can't get %pOF property 'IORESOURCE_MEM'\n", @@ -255,6 +264,8 @@ static int fsl_bman_probe(struct platform_device *pdev) return ret; } + __bman_probed = 1; + return 0; }; diff --git a/drivers/soc/fsl/qbman/qman_ccsr.c b/drivers/soc/fsl/qbman/qman_ccsr.c index 79cba58387a5..6fd5fef5f39b 100644 --- a/drivers/soc/fsl/qbman/qman_ccsr.c +++ b/drivers/soc/fsl/qbman/qman_ccsr.c @@ -273,6 +273,7 @@ static const struct qman_error_info_mdata error_mdata[] = { static u32 __iomem *qm_ccsr_start; /* A SDQCR mask comprising all the available/visible pool channels */ static u32 qm_pools_sdqcr; +static int __qman_probed; static inline u32 qm_ccsr_in(u32 offset) { @@ -686,6 +687,12 @@ static int qman_resource_init(struct device *dev) return 0; } +int qman_is_probed(void) +{ + return __qman_probed; +} +EXPORT_SYMBOL_GPL(qman_is_probed); + static int fsl_qman_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -695,6 +702,8 @@ static int fsl_qman_probe(struct platform_device *pdev) u16 id; u8 major, minor; + __qman_probed = -1; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(dev, "Can't get %pOF property 'IORESOURCE_MEM'\n", @@ -828,6 +837,8 @@ static int fsl_qman_probe(struct platform_device *pdev) if (ret) return ret; + __qman_probed = 1; + return 0; } diff --git a/include/soc/fsl/bman.h b/include/soc/fsl/bman.h index eaaf56df4086..5b99cb2ea5ef 100644 --- a/include/soc/fsl/bman.h +++ b/include/soc/fsl/bman.h @@ -126,4 +126,12 @@ int bman_release(struct bman_pool *pool, const struct bm_buffer *bufs, u8 num); */ int bman_acquire(struct bman_pool *pool, struct bm_buffer *bufs, u8 num); +/** + * bman_is_probed - Check if bman is probed + * + * Returns 1 if the bman driver successfully probed, -1 if the bman driver + * failed to probe or 0 if the bman driver did not probed yet. + */ +int bman_is_probed(void); + #endif /* __FSL_BMAN_H */ diff --git a/include/soc/fsl/qman.h b/include/soc/fsl/qman.h index d4dfefdee6c1..597783b8a3a0 100644 --- a/include/soc/fsl/qman.h +++ b/include/soc/fsl/qman.h @@ -1186,4 +1186,12 @@ int qman_alloc_cgrid_range(u32 *result, u32 count); */ int qman_release_cgrid(u32 id); +/** + * qman_is_probed - Check if qman is probed + * + * Returns 1 if the qman driver successfully probed, -1 if the qman driver + * failed to probe or 0 if the qman driver did not probed yet. + */ +int qman_is_probed(void); + #endif /* __FSL_QMAN_H */ From 083874549fdfefa629dfa752785e20427dde1511 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Thu, 27 Sep 2018 15:47:33 -0500 Subject: [PATCH 1384/1762] PCI: Reprogram bridge prefetch registers on resume On 38+ Intel-based ASUS products, the NVIDIA GPU becomes unusable after S3 suspend/resume. The affected products include multiple generations of NVIDIA GPUs and Intel SoCs. After resume, nouveau logs many errors such as: fifo: fault 00 [READ] at 0000005555555000 engine 00 [GR] client 04 [HUB/FE] reason 4a [] on channel -1 [007fa91000 unknown] DRM: failed to idle channel 0 [DRM] Similarly, the NVIDIA proprietary driver also fails after resume (black screen, 100% CPU usage in Xorg process). We shipped a sample to NVIDIA for diagnosis, and their response indicated that it's a problem with the parent PCI bridge (on the Intel SoC), not the GPU. Runtime suspend/resume works fine, only S3 suspend is affected. We found a workaround: on resume, rewrite the Intel PCI bridge 'Prefetchable Base Upper 32 Bits' register (PCI_PREF_BASE_UPPER32). In the cases that I checked, this register has value 0 and we just have to rewrite that value. Linux already saves and restores PCI config space during suspend/resume, but this register was being skipped because upon resume, it already has value 0 (the correct, pre-suspend value). Intel appear to have previously acknowledged this behaviour and the requirement to rewrite this register: https://bugzilla.kernel.org/show_bug.cgi?id=116851#c23 Based on that, rewrite the prefetch register values even when that appears unnecessary. We have confirmed this solution on all the affected models we have in-hands (X542UQ, UX533FD, X530UN, V272UN). Additionally, this solves an issue where r8169 MSI-X interrupts were broken after S3 suspend/resume on ASUS X441UAR. This issue was recently worked around in commit 7bb05b85bc2d ("r8169: don't use MSI-X on RTL8106e"). It also fixes the same issue on RTL6186evl/8111evl on an Aimfor-tech laptop that we had not yet patched. I suspect it will also fix the issue that was worked around in commit 7c53a722459c ("r8169: don't use MSI-X on RTL8168g"). Thomas Martitz reports that this change also solves an issue where the AMD Radeon Polaris 10 GPU on the HP Zbook 14u G5 is unresponsive after S3 suspend/resume. Link: https://bugzilla.kernel.org/show_bug.cgi?id=201069 Signed-off-by: Daniel Drake Signed-off-by: Bjorn Helgaas Reviewed-by: Rafael J. Wysocki Reviewed-By: Peter Wu CC: stable@vger.kernel.org --- drivers/pci/pci.c | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 1835f3a7aa8d..51b6c81671c1 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1289,12 +1289,12 @@ int pci_save_state(struct pci_dev *dev) EXPORT_SYMBOL(pci_save_state); static void pci_restore_config_dword(struct pci_dev *pdev, int offset, - u32 saved_val, int retry) + u32 saved_val, int retry, bool force) { u32 val; pci_read_config_dword(pdev, offset, &val); - if (val == saved_val) + if (!force && val == saved_val) return; for (;;) { @@ -1313,25 +1313,36 @@ static void pci_restore_config_dword(struct pci_dev *pdev, int offset, } static void pci_restore_config_space_range(struct pci_dev *pdev, - int start, int end, int retry) + int start, int end, int retry, + bool force) { int index; for (index = end; index >= start; index--) pci_restore_config_dword(pdev, 4 * index, pdev->saved_config_space[index], - retry); + retry, force); } static void pci_restore_config_space(struct pci_dev *pdev) { if (pdev->hdr_type == PCI_HEADER_TYPE_NORMAL) { - pci_restore_config_space_range(pdev, 10, 15, 0); + pci_restore_config_space_range(pdev, 10, 15, 0, false); /* Restore BARs before the command register. */ - pci_restore_config_space_range(pdev, 4, 9, 10); - pci_restore_config_space_range(pdev, 0, 3, 0); + pci_restore_config_space_range(pdev, 4, 9, 10, false); + pci_restore_config_space_range(pdev, 0, 3, 0, false); + } else if (pdev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { + pci_restore_config_space_range(pdev, 12, 15, 0, false); + + /* + * Force rewriting of prefetch registers to avoid S3 resume + * issues on Intel PCI bridges that occur when these + * registers are not explicitly written. + */ + pci_restore_config_space_range(pdev, 9, 11, 0, true); + pci_restore_config_space_range(pdev, 0, 8, 0, false); } else { - pci_restore_config_space_range(pdev, 0, 15, 0); + pci_restore_config_space_range(pdev, 0, 15, 0, false); } } From 42cfb412e24ffbb46d6de9590293bc44f921a0fb Mon Sep 17 00:00:00 2001 From: Matthias Kaehlcke Date: Tue, 25 Sep 2018 11:09:14 -0700 Subject: [PATCH 1385/1762] ASoC: soc-utils: Rename dummy_dma_ops to snd_dummy_dma_ops The symbols 'dummy_dma_ops' is declared with different data types by sound/soc/soc-utils.c and arch/arm64/include/asm/dma-mapping.h. This leads to conflicts when soc-utils.c (indirectly) includes dma-mapping.h: sound/soc/soc-utils.c:282:33: error: conflicting types for 'dummy_dma_ops' static const struct snd_pcm_ops dummy_dma_ops = { ^ ... arch/arm64/include/asm/dma-mapping.h:27:33: note: previous declaration of 'dummy_dma_ops' was here extern const struct dma_map_ops dummy_dma_ops; ^ Rename the symbol in soc-utils.c to 'snd_dummy_dma_ops' to avoid the conflict. Signed-off-by: Matthias Kaehlcke Signed-off-by: Mark Brown --- sound/soc/soc-utils.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c index e0c93496c0cd..e3b9dd634c6d 100644 --- a/sound/soc/soc-utils.c +++ b/sound/soc/soc-utils.c @@ -273,13 +273,13 @@ static int dummy_dma_open(struct snd_pcm_substream *substream) return 0; } -static const struct snd_pcm_ops dummy_dma_ops = { +static const struct snd_pcm_ops snd_dummy_dma_ops = { .open = dummy_dma_open, .ioctl = snd_pcm_lib_ioctl, }; static const struct snd_soc_component_driver dummy_platform = { - .ops = &dummy_dma_ops, + .ops = &snd_dummy_dma_ops, }; static const struct snd_soc_component_driver dummy_codec = { From bec5ecdf41d404691980c9c82ba867113cc8dee5 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 26 Sep 2018 14:46:35 +0200 Subject: [PATCH 1386/1762] ASoC: pxa: avoid AC97_BUS build warning Selecting AC97_BUS_NEW from SND_PXA2XX_SOC_AC97 leads to a Kconfig warning if any other driver selects AC97_BUS: WARNING: unmet direct dependencies detected for AC97_BUS_COMPAT Depends on [n]: SOUND [=y] && !UML && SND [=y] && AC97_BUS_NEW [=y] && !AC97_BUS [=y] Selected by [y]: - SND_SOC_WM9713 [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && AC97_BUS_NEW [=y] I don't know if that combination is supposed to work. Assuming it is not, this adds a dependency on all users for PXA to avoids the combination. Fixes: 1c8bc7b3de5e ("ASoC: pxa: switch to new ac97 bus support") Signed-off-by: Arnd Bergmann Signed-off-by: Mark Brown --- sound/soc/pxa/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig index 29f577e6dfc0..943b44de1464 100644 --- a/sound/soc/pxa/Kconfig +++ b/sound/soc/pxa/Kconfig @@ -79,6 +79,7 @@ config SND_PXA2XX_SOC_TOSA tristate "SoC AC97 Audio support for Tosa" depends on SND_PXA2XX_SOC && MACH_TOSA depends on MFD_TC6393XB + depends on !AC97_BUS select SND_PXA2XX_SOC_AC97 select SND_SOC_WM9712 help @@ -88,6 +89,7 @@ config SND_PXA2XX_SOC_TOSA config SND_PXA2XX_SOC_E740 tristate "SoC AC97 Audio support for e740" depends on SND_PXA2XX_SOC && MACH_E740 + depends on !AC97_BUS select SND_SOC_WM9705 select SND_PXA2XX_SOC_AC97 help @@ -97,6 +99,7 @@ config SND_PXA2XX_SOC_E740 config SND_PXA2XX_SOC_E750 tristate "SoC AC97 Audio support for e750" depends on SND_PXA2XX_SOC && MACH_E750 + depends on !AC97_BUS select SND_SOC_WM9705 select SND_PXA2XX_SOC_AC97 help @@ -106,6 +109,7 @@ config SND_PXA2XX_SOC_E750 config SND_PXA2XX_SOC_E800 tristate "SoC AC97 Audio support for e800" depends on SND_PXA2XX_SOC && MACH_E800 + depends on !AC97_BUS select SND_SOC_WM9712 select SND_PXA2XX_SOC_AC97 help @@ -116,6 +120,7 @@ config SND_PXA2XX_SOC_EM_X270 tristate "SoC Audio support for CompuLab EM-x270, eXeda and CM-X300" depends on SND_PXA2XX_SOC && (MACH_EM_X270 || MACH_EXEDA || \ MACH_CM_X300) + depends on !AC97_BUS select SND_PXA2XX_SOC_AC97 select SND_SOC_WM9712 help @@ -126,6 +131,7 @@ config SND_PXA2XX_SOC_PALM27X bool "SoC Audio support for Palm T|X, T5, E2 and LifeDrive" depends on SND_PXA2XX_SOC && (MACH_PALMLD || MACH_PALMTX || \ MACH_PALMT5 || MACH_PALMTE2) + depends on !AC97_BUS select SND_PXA2XX_SOC_AC97 select SND_SOC_WM9712 help @@ -155,6 +161,7 @@ config SND_SOC_TTC_DKB config SND_SOC_ZYLONITE tristate "SoC Audio support for Marvell Zylonite" depends on SND_PXA2XX_SOC && MACH_ZYLONITE + depends on !AC97_BUS select SND_PXA2XX_SOC_AC97 select SND_PXA_SOC_SSP select SND_SOC_WM9713 @@ -194,6 +201,7 @@ config SND_PXA2XX_SOC_MAGICIAN config SND_PXA2XX_SOC_MIOA701 tristate "SoC Audio support for MIO A701" depends on SND_PXA2XX_SOC && MACH_MIOA701 + depends on !AC97_BUS select SND_PXA2XX_SOC_AC97 select SND_SOC_WM9713 help From 53c156ab9d8aae2083d3c895365a3e39b864a5a7 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 26 Sep 2018 14:59:40 +0200 Subject: [PATCH 1387/1762] ASoC: atmel: add SND_SOC_I2C_AND_SPI dependency Selecting SND_SOC_WM8731 is only allowed when all its dependencies are already there: WARNING: unmet direct dependencies detected for SND_SOC_WM8731 Depends on [m]: SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_I2C_AND_SPI [=m] Selected by [y]: - SND_SOC_MIKROE_PROTO [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_ATMEL_SOC [=y] && OF [=y] Selected by [m]: - SND_AT91_SOC_SAM9X5_WM8731 [=m] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_ATMEL_SOC [=y] && (ARCH_AT91 [=y] || COMPILE_TEST [=y]) && ATMEL_SSC [=y] && SND_SOC_I2C_AND_SPI [=m] - SND_SOC_ALL_CODECS [=m] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && COMPILE_TEST [=y] && SND_SOC_I2C_AND_SPI [=m] Fixes: a45f8853a5f9 ("ASoC: Add driver for PROTO Audio CODEC (with a WM8731)") Signed-off-by: Arnd Bergmann Reviewed-by: Codrin Ciubotariu Signed-off-by: Mark Brown --- sound/soc/atmel/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/atmel/Kconfig b/sound/soc/atmel/Kconfig index 81a0712d4f14..64f86f0b87e5 100644 --- a/sound/soc/atmel/Kconfig +++ b/sound/soc/atmel/Kconfig @@ -101,6 +101,7 @@ config SND_ATMEL_SOC_I2S config SND_SOC_MIKROE_PROTO tristate "Support for Mikroe-PROTO board" depends on OF + depends on SND_SOC_I2C_AND_SPI select SND_SOC_WM8731 help Say Y or M if you want to add support for MikroElektronika PROTO Audio From 18380dcc52cc8965e5144ce33fdfad7e168679a5 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 26 Sep 2018 21:37:40 +0200 Subject: [PATCH 1388/1762] ASoC: wm9712: fix unused variable warning The 'ret' variable is now only used in an #ifdef, and causes a warning if it is declared outside of that block: sound/soc/codecs/wm9712.c: In function 'wm9712_soc_probe': sound/soc/codecs/wm9712.c:641:6: error: unused variable 'ret' [-Werror=unused-variable] Fixes: 2ed1a8e0ce8d ("ASoC: wm9712: add ac97 new bus support") Signed-off-by: Arnd Bergmann Acked-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/codecs/wm9712.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c index ade34c26ad2f..e873baa9e778 100644 --- a/sound/soc/codecs/wm9712.c +++ b/sound/soc/codecs/wm9712.c @@ -638,13 +638,14 @@ static int wm9712_soc_probe(struct snd_soc_component *component) { struct wm9712_priv *wm9712 = snd_soc_component_get_drvdata(component); struct regmap *regmap; - int ret; if (wm9712->mfd_pdata) { wm9712->ac97 = wm9712->mfd_pdata->ac97; regmap = wm9712->mfd_pdata->regmap; } else { #ifdef CONFIG_SND_SOC_AC97_BUS + int ret; + wm9712->ac97 = snd_soc_new_ac97_component(component, WM9712_VENDOR_ID, WM9712_VENDOR_ID_MASK); if (IS_ERR(wm9712->ac97)) { From 765f50d464457c6a397506b3f3dc58dacc227c6d Mon Sep 17 00:00:00 2001 From: Biju Das Date: Thu, 27 Sep 2018 14:51:25 +0100 Subject: [PATCH 1389/1762] ASoC: rsnd: Add r8a7744 support Document RZ/G1N (R8A7744) SoC bindings. Signed-off-by: Biju Das Reviewed-by: Chris Paterson Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/renesas,rsnd.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt index f4688c508be6..d92b705e7917 100644 --- a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt +++ b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt @@ -343,6 +343,7 @@ Required properties: "renesas,rcar_sound-gen3" if generation3 (or RZ/G2) Examples with soctypes are: - "renesas,rcar_sound-r8a7743" (RZ/G1M) + - "renesas,rcar_sound-r8a7744" (RZ/G1N) - "renesas,rcar_sound-r8a7745" (RZ/G1E) - "renesas,rcar_sound-r8a774a1" (RZ/G2M) - "renesas,rcar_sound-r8a7778" (R-Car M1A) From 06da26e5ce157bf2af09ef4a9f5dc30af4599fa0 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Wed, 26 Sep 2018 15:33:03 +0800 Subject: [PATCH 1390/1762] ASoC: qcom: qdsp6: remove duplicated include Remove duplicated includes linux/of_platform.h and linux/wait.h Signed-off-by: YueHaibing Signed-off-by: Mark Brown --- sound/soc/qcom/qdsp6/q6asm.c | 1 - sound/soc/qcom/qdsp6/q6core.c | 1 - 2 files changed, 2 deletions(-) diff --git a/sound/soc/qcom/qdsp6/q6asm.c b/sound/soc/qcom/qdsp6/q6asm.c index 2b2c7233bb5f..e1cfa846a1dc 100644 --- a/sound/soc/qcom/qdsp6/q6asm.c +++ b/sound/soc/qcom/qdsp6/q6asm.c @@ -11,7 +11,6 @@ #include #include #include -#include #include #include #include diff --git a/sound/soc/qcom/qdsp6/q6core.c b/sound/soc/qcom/qdsp6/q6core.c index ca1be7305524..cdfc8ab6cfc0 100644 --- a/sound/soc/qcom/qdsp6/q6core.c +++ b/sound/soc/qcom/qdsp6/q6core.c @@ -10,7 +10,6 @@ #include #include #include -#include #include #include "q6core.h" #include "q6dsp-errno.h" From add92a817e60e308a419693413a38d9d1e663aff Mon Sep 17 00:00:00 2001 From: Harsh Jain Date: Wed, 19 Sep 2018 22:42:16 +0530 Subject: [PATCH 1391/1762] crypto: chelsio - Fix memory corruption in DMA Mapped buffers. Update PCI Id in "cpl_rx_phys_dsgl" header. In case pci_chan_id and tx_chan_id are not derived from same queue, H/W can send request completion indication before completing DMA Transfer. Herbert, It would be good if fix can be merge to stable tree. For 4.14 kernel, It requires some update to avoid mege conficts. Cc: Signed-off-by: Harsh Jain Signed-off-by: Herbert Xu --- drivers/crypto/chelsio/chcr_algo.c | 32 +++++++++++++++++++--------- drivers/crypto/chelsio/chcr_crypto.h | 2 ++ 2 files changed, 24 insertions(+), 10 deletions(-) diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c index 5c539af8ed60..010bbf607797 100644 --- a/drivers/crypto/chelsio/chcr_algo.c +++ b/drivers/crypto/chelsio/chcr_algo.c @@ -367,7 +367,8 @@ static inline void dsgl_walk_init(struct dsgl_walk *walk, walk->to = (struct phys_sge_pairs *)(dsgl + 1); } -static inline void dsgl_walk_end(struct dsgl_walk *walk, unsigned short qid) +static inline void dsgl_walk_end(struct dsgl_walk *walk, unsigned short qid, + int pci_chan_id) { struct cpl_rx_phys_dsgl *phys_cpl; @@ -385,6 +386,7 @@ static inline void dsgl_walk_end(struct dsgl_walk *walk, unsigned short qid) phys_cpl->rss_hdr_int.opcode = CPL_RX_PHYS_ADDR; phys_cpl->rss_hdr_int.qid = htons(qid); phys_cpl->rss_hdr_int.hash_val = 0; + phys_cpl->rss_hdr_int.channel = pci_chan_id; } static inline void dsgl_walk_add_page(struct dsgl_walk *walk, @@ -718,7 +720,7 @@ static inline void create_wreq(struct chcr_context *ctx, FILL_WR_RX_Q_ID(ctx->dev->rx_channel_id, qid, !!lcb, ctx->tx_qidx); - chcr_req->ulptx.cmd_dest = FILL_ULPTX_CMD_DEST(ctx->dev->tx_channel_id, + chcr_req->ulptx.cmd_dest = FILL_ULPTX_CMD_DEST(ctx->tx_chan_id, qid); chcr_req->ulptx.len = htonl((DIV_ROUND_UP(len16, 16) - ((sizeof(chcr_req->wreq)) >> 4))); @@ -1339,16 +1341,23 @@ static int chcr_device_init(struct chcr_context *ctx) adap->vres.ncrypto_fc); rxq_perchan = u_ctx->lldi.nrxq / u_ctx->lldi.nchan; txq_perchan = ntxq / u_ctx->lldi.nchan; - rxq_idx = ctx->dev->tx_channel_id * rxq_perchan; - rxq_idx += id % rxq_perchan; - txq_idx = ctx->dev->tx_channel_id * txq_perchan; - txq_idx += id % txq_perchan; spin_lock(&ctx->dev->lock_chcr_dev); - ctx->rx_qidx = rxq_idx; - ctx->tx_qidx = txq_idx; + ctx->tx_chan_id = ctx->dev->tx_channel_id; ctx->dev->tx_channel_id = !ctx->dev->tx_channel_id; ctx->dev->rx_channel_id = 0; spin_unlock(&ctx->dev->lock_chcr_dev); + rxq_idx = ctx->tx_chan_id * rxq_perchan; + rxq_idx += id % rxq_perchan; + txq_idx = ctx->tx_chan_id * txq_perchan; + txq_idx += id % txq_perchan; + ctx->rx_qidx = rxq_idx; + ctx->tx_qidx = txq_idx; + /* Channel Id used by SGE to forward packet to Host. + * Same value should be used in cpl_fw6_pld RSS_CH field + * by FW. Driver programs PCI channel ID to be used in fw + * at the time of queue allocation with value "pi->tx_chan" + */ + ctx->pci_chan_id = txq_idx / txq_perchan; } out: return err; @@ -2503,6 +2512,7 @@ void chcr_add_aead_dst_ent(struct aead_request *req, struct crypto_aead *tfm = crypto_aead_reqtfm(req); struct dsgl_walk dsgl_walk; unsigned int authsize = crypto_aead_authsize(tfm); + struct chcr_context *ctx = a_ctx(tfm); u32 temp; dsgl_walk_init(&dsgl_walk, phys_cpl); @@ -2512,7 +2522,7 @@ void chcr_add_aead_dst_ent(struct aead_request *req, dsgl_walk_add_page(&dsgl_walk, IV, &reqctx->iv_dma); temp = req->cryptlen + (reqctx->op ? -authsize : authsize); dsgl_walk_add_sg(&dsgl_walk, req->dst, temp, req->assoclen); - dsgl_walk_end(&dsgl_walk, qid); + dsgl_walk_end(&dsgl_walk, qid, ctx->pci_chan_id); } void chcr_add_cipher_src_ent(struct ablkcipher_request *req, @@ -2544,6 +2554,8 @@ void chcr_add_cipher_dst_ent(struct ablkcipher_request *req, unsigned short qid) { struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req); + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(wrparam->req); + struct chcr_context *ctx = c_ctx(tfm); struct dsgl_walk dsgl_walk; dsgl_walk_init(&dsgl_walk, phys_cpl); @@ -2552,7 +2564,7 @@ void chcr_add_cipher_dst_ent(struct ablkcipher_request *req, reqctx->dstsg = dsgl_walk.last_sg; reqctx->dst_ofst = dsgl_walk.last_sg_len; - dsgl_walk_end(&dsgl_walk, qid); + dsgl_walk_end(&dsgl_walk, qid, ctx->pci_chan_id); } void chcr_add_hash_src_ent(struct ahash_request *req, diff --git a/drivers/crypto/chelsio/chcr_crypto.h b/drivers/crypto/chelsio/chcr_crypto.h index 54835cb109e5..0d2c70c344f3 100644 --- a/drivers/crypto/chelsio/chcr_crypto.h +++ b/drivers/crypto/chelsio/chcr_crypto.h @@ -255,6 +255,8 @@ struct chcr_context { struct chcr_dev *dev; unsigned char tx_qidx; unsigned char rx_qidx; + unsigned char tx_chan_id; + unsigned char pci_chan_id; struct __crypto_ctx crypto_ctx[0]; }; From d80771c08363ad7fbf0f56f5301e7ca65065c582 Mon Sep 17 00:00:00 2001 From: Leonard Crestez Date: Fri, 21 Sep 2018 18:03:18 +0300 Subject: [PATCH 1392/1762] crypto: mxs-dcp - Fix wait logic on chan threads When compiling with CONFIG_DEBUG_ATOMIC_SLEEP=y the mxs-dcp driver prints warnings such as: WARNING: CPU: 0 PID: 120 at kernel/sched/core.c:7736 __might_sleep+0x98/0x9c do not call blocking ops when !TASK_RUNNING; state=1 set at [<8081978c>] dcp_chan_thread_sha+0x3c/0x2ec The problem is that blocking ops will manipulate current->state themselves so it is not allowed to call them between set_current_state(TASK_INTERRUPTIBLE) and schedule(). Fix this by converting the per-chan mutex to a spinlock (it only protects tiny list ops anyway) and rearranging the wait logic so that callbacks are called current->state as TASK_RUNNING. Those callbacks will indeed call blocking ops themselves so this is required. Cc: Signed-off-by: Leonard Crestez Signed-off-by: Herbert Xu --- drivers/crypto/mxs-dcp.c | 53 +++++++++++++++++++++++----------------- 1 file changed, 30 insertions(+), 23 deletions(-) diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c index a10c418d4e5c..56bd28174f52 100644 --- a/drivers/crypto/mxs-dcp.c +++ b/drivers/crypto/mxs-dcp.c @@ -63,7 +63,7 @@ struct dcp { struct dcp_coherent_block *coh; struct completion completion[DCP_MAX_CHANS]; - struct mutex mutex[DCP_MAX_CHANS]; + spinlock_t lock[DCP_MAX_CHANS]; struct task_struct *thread[DCP_MAX_CHANS]; struct crypto_queue queue[DCP_MAX_CHANS]; }; @@ -349,13 +349,20 @@ static int dcp_chan_thread_aes(void *data) int ret; - do { - __set_current_state(TASK_INTERRUPTIBLE); + while (!kthread_should_stop()) { + set_current_state(TASK_INTERRUPTIBLE); - mutex_lock(&sdcp->mutex[chan]); + spin_lock(&sdcp->lock[chan]); backlog = crypto_get_backlog(&sdcp->queue[chan]); arq = crypto_dequeue_request(&sdcp->queue[chan]); - mutex_unlock(&sdcp->mutex[chan]); + spin_unlock(&sdcp->lock[chan]); + + if (!backlog && !arq) { + schedule(); + continue; + } + + set_current_state(TASK_RUNNING); if (backlog) backlog->complete(backlog, -EINPROGRESS); @@ -363,11 +370,8 @@ static int dcp_chan_thread_aes(void *data) if (arq) { ret = mxs_dcp_aes_block_crypt(arq); arq->complete(arq, ret); - continue; } - - schedule(); - } while (!kthread_should_stop()); + } return 0; } @@ -409,9 +413,9 @@ static int mxs_dcp_aes_enqueue(struct ablkcipher_request *req, int enc, int ecb) rctx->ecb = ecb; actx->chan = DCP_CHAN_CRYPTO; - mutex_lock(&sdcp->mutex[actx->chan]); + spin_lock(&sdcp->lock[actx->chan]); ret = crypto_enqueue_request(&sdcp->queue[actx->chan], &req->base); - mutex_unlock(&sdcp->mutex[actx->chan]); + spin_unlock(&sdcp->lock[actx->chan]); wake_up_process(sdcp->thread[actx->chan]); @@ -640,13 +644,20 @@ static int dcp_chan_thread_sha(void *data) struct ahash_request *req; int ret, fini; - do { - __set_current_state(TASK_INTERRUPTIBLE); + while (!kthread_should_stop()) { + set_current_state(TASK_INTERRUPTIBLE); - mutex_lock(&sdcp->mutex[chan]); + spin_lock(&sdcp->lock[chan]); backlog = crypto_get_backlog(&sdcp->queue[chan]); arq = crypto_dequeue_request(&sdcp->queue[chan]); - mutex_unlock(&sdcp->mutex[chan]); + spin_unlock(&sdcp->lock[chan]); + + if (!backlog && !arq) { + schedule(); + continue; + } + + set_current_state(TASK_RUNNING); if (backlog) backlog->complete(backlog, -EINPROGRESS); @@ -658,12 +669,8 @@ static int dcp_chan_thread_sha(void *data) ret = dcp_sha_req_to_buf(arq); fini = rctx->fini; arq->complete(arq, ret); - if (!fini) - continue; } - - schedule(); - } while (!kthread_should_stop()); + } return 0; } @@ -721,9 +728,9 @@ static int dcp_sha_update_fx(struct ahash_request *req, int fini) rctx->init = 1; } - mutex_lock(&sdcp->mutex[actx->chan]); + spin_lock(&sdcp->lock[actx->chan]); ret = crypto_enqueue_request(&sdcp->queue[actx->chan], &req->base); - mutex_unlock(&sdcp->mutex[actx->chan]); + spin_unlock(&sdcp->lock[actx->chan]); wake_up_process(sdcp->thread[actx->chan]); mutex_unlock(&actx->mutex); @@ -997,7 +1004,7 @@ static int mxs_dcp_probe(struct platform_device *pdev) platform_set_drvdata(pdev, sdcp); for (i = 0; i < DCP_MAX_CHANS; i++) { - mutex_init(&sdcp->mutex[i]); + spin_lock_init(&sdcp->lock[i]); init_completion(&sdcp->completion[i]); crypto_init_queue(&sdcp->queue[i], 50); } From ba439a6cbfa2936a6713f64cb499de7943673fe3 Mon Sep 17 00:00:00 2001 From: Waiman Long Date: Sat, 22 Sep 2018 20:41:55 -0400 Subject: [PATCH 1393/1762] crypto: qat - Fix KASAN stack-out-of-bounds bug in adf_probe() The following KASAN warning was printed when booting a 64-bit kernel on some systems with Intel CPUs: [ 44.512826] ================================================================== [ 44.520165] BUG: KASAN: stack-out-of-bounds in find_first_bit+0xb0/0xc0 [ 44.526786] Read of size 8 at addr ffff88041e02fc50 by task kworker/0:2/124 [ 44.535253] CPU: 0 PID: 124 Comm: kworker/0:2 Tainted: G X --------- --- 4.18.0-12.el8.x86_64+debug #1 [ 44.545858] Hardware name: Intel Corporation PURLEY/PURLEY, BIOS BKVDTRL1.86B.0005.D08.1712070559 12/07/2017 [ 44.555682] Workqueue: events work_for_cpu_fn [ 44.560043] Call Trace: [ 44.562502] dump_stack+0x9a/0xe9 [ 44.565832] print_address_description+0x65/0x22e [ 44.570683] ? find_first_bit+0xb0/0xc0 [ 44.570689] kasan_report.cold.6+0x92/0x19f [ 44.578726] find_first_bit+0xb0/0xc0 [ 44.578737] adf_probe+0x9eb/0x19a0 [qat_c62x] [ 44.578751] ? adf_remove+0x110/0x110 [qat_c62x] [ 44.591490] ? mark_held_locks+0xc8/0x140 [ 44.591498] ? _raw_spin_unlock+0x30/0x30 [ 44.591505] ? trace_hardirqs_on_caller+0x381/0x570 [ 44.604418] ? adf_remove+0x110/0x110 [qat_c62x] [ 44.604427] local_pci_probe+0xd4/0x180 [ 44.604432] ? pci_device_shutdown+0x110/0x110 [ 44.617386] work_for_cpu_fn+0x51/0xa0 [ 44.621145] process_one_work+0x8fe/0x16e0 [ 44.625263] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 44.629799] ? lock_acquire+0x14c/0x400 [ 44.633645] ? move_linked_works+0x12e/0x2a0 [ 44.637928] worker_thread+0x536/0xb50 [ 44.641690] ? __kthread_parkme+0xb6/0x180 [ 44.645796] ? process_one_work+0x16e0/0x16e0 [ 44.650160] kthread+0x30c/0x3d0 [ 44.653400] ? kthread_create_worker_on_cpu+0xc0/0xc0 [ 44.658457] ret_from_fork+0x3a/0x50 [ 44.663557] The buggy address belongs to the page: [ 44.668350] page:ffffea0010780bc0 count:0 mapcount:0 mapping:0000000000000000 index:0x0 [ 44.676356] flags: 0x17ffffc0000000() [ 44.680023] raw: 0017ffffc0000000 ffffea0010780bc8 ffffea0010780bc8 0000000000000000 [ 44.687769] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 44.695510] page dumped because: kasan: bad access detected [ 44.702578] Memory state around the buggy address: [ 44.707372] ffff88041e02fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 44.714593] ffff88041e02fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 44.721810] >ffff88041e02fc00: 00 00 00 00 00 00 f1 f1 f1 f1 04 f2 f2 f2 f2 f2 [ 44.729028] ^ [ 44.734864] ffff88041e02fc80: f2 f2 00 00 00 00 f3 f3 f3 f3 00 00 00 00 00 00 [ 44.742082] ffff88041e02fd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 44.749299] ================================================================== Looking into the code: int ret, bar_mask; : for_each_set_bit(bar_nr, (const unsigned long *)&bar_mask, It is casting a 32-bit integer pointer to a 64-bit unsigned long pointer. There are two problems here. First, the 32-bit pointer address may not be 64-bit aligned. Secondly, it is accessing an extra 4 bytes. This is fixed by changing the bar_mask type to unsigned long. Cc: Signed-off-by: Waiman Long Signed-off-by: Herbert Xu --- drivers/crypto/qat/qat_c3xxx/adf_drv.c | 6 +++--- drivers/crypto/qat/qat_c3xxxvf/adf_drv.c | 6 +++--- drivers/crypto/qat/qat_c62x/adf_drv.c | 6 +++--- drivers/crypto/qat/qat_c62xvf/adf_drv.c | 6 +++--- drivers/crypto/qat/qat_dh895xcc/adf_drv.c | 6 +++--- drivers/crypto/qat/qat_dh895xccvf/adf_drv.c | 6 +++--- 6 files changed, 18 insertions(+), 18 deletions(-) diff --git a/drivers/crypto/qat/qat_c3xxx/adf_drv.c b/drivers/crypto/qat/qat_c3xxx/adf_drv.c index ba197f34c252..763c2166ee0e 100644 --- a/drivers/crypto/qat/qat_c3xxx/adf_drv.c +++ b/drivers/crypto/qat/qat_c3xxx/adf_drv.c @@ -123,7 +123,8 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct adf_hw_device_data *hw_data; char name[ADF_DEVICE_NAME_LENGTH]; unsigned int i, bar_nr; - int ret, bar_mask; + unsigned long bar_mask; + int ret; switch (ent->device) { case ADF_C3XXX_PCI_DEVICE_ID: @@ -235,8 +236,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) /* Find and map all the device's BARS */ i = 0; bar_mask = pci_select_bars(pdev, IORESOURCE_MEM); - for_each_set_bit(bar_nr, (const unsigned long *)&bar_mask, - ADF_PCI_MAX_BARS * 2) { + for_each_set_bit(bar_nr, &bar_mask, ADF_PCI_MAX_BARS * 2) { struct adf_bar *bar = &accel_pci_dev->pci_bars[i++]; bar->base_addr = pci_resource_start(pdev, bar_nr); diff --git a/drivers/crypto/qat/qat_c3xxxvf/adf_drv.c b/drivers/crypto/qat/qat_c3xxxvf/adf_drv.c index 24ec908eb26c..613c7d5644ce 100644 --- a/drivers/crypto/qat/qat_c3xxxvf/adf_drv.c +++ b/drivers/crypto/qat/qat_c3xxxvf/adf_drv.c @@ -125,7 +125,8 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct adf_hw_device_data *hw_data; char name[ADF_DEVICE_NAME_LENGTH]; unsigned int i, bar_nr; - int ret, bar_mask; + unsigned long bar_mask; + int ret; switch (ent->device) { case ADF_C3XXXIOV_PCI_DEVICE_ID: @@ -215,8 +216,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) /* Find and map all the device's BARS */ i = 0; bar_mask = pci_select_bars(pdev, IORESOURCE_MEM); - for_each_set_bit(bar_nr, (const unsigned long *)&bar_mask, - ADF_PCI_MAX_BARS * 2) { + for_each_set_bit(bar_nr, &bar_mask, ADF_PCI_MAX_BARS * 2) { struct adf_bar *bar = &accel_pci_dev->pci_bars[i++]; bar->base_addr = pci_resource_start(pdev, bar_nr); diff --git a/drivers/crypto/qat/qat_c62x/adf_drv.c b/drivers/crypto/qat/qat_c62x/adf_drv.c index 59a5a0df50b6..9cb832963357 100644 --- a/drivers/crypto/qat/qat_c62x/adf_drv.c +++ b/drivers/crypto/qat/qat_c62x/adf_drv.c @@ -123,7 +123,8 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct adf_hw_device_data *hw_data; char name[ADF_DEVICE_NAME_LENGTH]; unsigned int i, bar_nr; - int ret, bar_mask; + unsigned long bar_mask; + int ret; switch (ent->device) { case ADF_C62X_PCI_DEVICE_ID: @@ -235,8 +236,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) /* Find and map all the device's BARS */ i = (hw_data->fuses & ADF_DEVICE_FUSECTL_MASK) ? 1 : 0; bar_mask = pci_select_bars(pdev, IORESOURCE_MEM); - for_each_set_bit(bar_nr, (const unsigned long *)&bar_mask, - ADF_PCI_MAX_BARS * 2) { + for_each_set_bit(bar_nr, &bar_mask, ADF_PCI_MAX_BARS * 2) { struct adf_bar *bar = &accel_pci_dev->pci_bars[i++]; bar->base_addr = pci_resource_start(pdev, bar_nr); diff --git a/drivers/crypto/qat/qat_c62xvf/adf_drv.c b/drivers/crypto/qat/qat_c62xvf/adf_drv.c index b9f3e0e4fde9..278452b8ef81 100644 --- a/drivers/crypto/qat/qat_c62xvf/adf_drv.c +++ b/drivers/crypto/qat/qat_c62xvf/adf_drv.c @@ -125,7 +125,8 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct adf_hw_device_data *hw_data; char name[ADF_DEVICE_NAME_LENGTH]; unsigned int i, bar_nr; - int ret, bar_mask; + unsigned long bar_mask; + int ret; switch (ent->device) { case ADF_C62XIOV_PCI_DEVICE_ID: @@ -215,8 +216,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) /* Find and map all the device's BARS */ i = 0; bar_mask = pci_select_bars(pdev, IORESOURCE_MEM); - for_each_set_bit(bar_nr, (const unsigned long *)&bar_mask, - ADF_PCI_MAX_BARS * 2) { + for_each_set_bit(bar_nr, &bar_mask, ADF_PCI_MAX_BARS * 2) { struct adf_bar *bar = &accel_pci_dev->pci_bars[i++]; bar->base_addr = pci_resource_start(pdev, bar_nr); diff --git a/drivers/crypto/qat/qat_dh895xcc/adf_drv.c b/drivers/crypto/qat/qat_dh895xcc/adf_drv.c index be5c5a988ca5..3a9708ef4ce2 100644 --- a/drivers/crypto/qat/qat_dh895xcc/adf_drv.c +++ b/drivers/crypto/qat/qat_dh895xcc/adf_drv.c @@ -123,7 +123,8 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct adf_hw_device_data *hw_data; char name[ADF_DEVICE_NAME_LENGTH]; unsigned int i, bar_nr; - int ret, bar_mask; + unsigned long bar_mask; + int ret; switch (ent->device) { case ADF_DH895XCC_PCI_DEVICE_ID: @@ -237,8 +238,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) /* Find and map all the device's BARS */ i = 0; bar_mask = pci_select_bars(pdev, IORESOURCE_MEM); - for_each_set_bit(bar_nr, (const unsigned long *)&bar_mask, - ADF_PCI_MAX_BARS * 2) { + for_each_set_bit(bar_nr, &bar_mask, ADF_PCI_MAX_BARS * 2) { struct adf_bar *bar = &accel_pci_dev->pci_bars[i++]; bar->base_addr = pci_resource_start(pdev, bar_nr); diff --git a/drivers/crypto/qat/qat_dh895xccvf/adf_drv.c b/drivers/crypto/qat/qat_dh895xccvf/adf_drv.c index 26ab17bfc6da..3da0f951cb59 100644 --- a/drivers/crypto/qat/qat_dh895xccvf/adf_drv.c +++ b/drivers/crypto/qat/qat_dh895xccvf/adf_drv.c @@ -125,7 +125,8 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct adf_hw_device_data *hw_data; char name[ADF_DEVICE_NAME_LENGTH]; unsigned int i, bar_nr; - int ret, bar_mask; + unsigned long bar_mask; + int ret; switch (ent->device) { case ADF_DH895XCCIOV_PCI_DEVICE_ID: @@ -215,8 +216,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) /* Find and map all the device's BARS */ i = 0; bar_mask = pci_select_bars(pdev, IORESOURCE_MEM); - for_each_set_bit(bar_nr, (const unsigned long *)&bar_mask, - ADF_PCI_MAX_BARS * 2) { + for_each_set_bit(bar_nr, &bar_mask, ADF_PCI_MAX_BARS * 2) { struct adf_bar *bar = &accel_pci_dev->pci_bars[i++]; bar->base_addr = pci_resource_start(pdev, bar_nr); From 7e0cf1c983b5b24426d130fd949a055d520acc9a Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Fri, 28 Sep 2018 14:53:18 +1000 Subject: [PATCH 1394/1762] selftests/powerpc: Fix Makefiles for headers_install change Commit b2d35fa5fc80 ("selftests: add headers_install to lib.mk") introduced a requirement that Makefiles more than one level below the selftests directory need to define top_srcdir, but it didn't update any of the powerpc Makefiles. This broke building all the powerpc selftests with eg: make[1]: Entering directory '/src/linux/tools/testing/selftests/powerpc' BUILD_TARGET=/src/linux/tools/testing/selftests/powerpc/alignment; mkdir -p $BUILD_TARGET; make OUTPUT=$BUILD_TARGET -k -C alignment all make[2]: Entering directory '/src/linux/tools/testing/selftests/powerpc/alignment' ../../lib.mk:20: ../../../../scripts/subarch.include: No such file or directory make[2]: *** No rule to make target '../../../../scripts/subarch.include'. make[2]: Failed to remake makefile '../../../../scripts/subarch.include'. Makefile:38: recipe for target 'alignment' failed Fix it by setting top_srcdir in the affected Makefiles. Fixes: b2d35fa5fc80 ("selftests: add headers_install to lib.mk") Signed-off-by: Michael Ellerman --- tools/testing/selftests/powerpc/alignment/Makefile | 1 + tools/testing/selftests/powerpc/benchmarks/Makefile | 1 + tools/testing/selftests/powerpc/cache_shape/Makefile | 1 + tools/testing/selftests/powerpc/copyloops/Makefile | 1 + tools/testing/selftests/powerpc/dscr/Makefile | 1 + tools/testing/selftests/powerpc/math/Makefile | 1 + tools/testing/selftests/powerpc/mm/Makefile | 1 + tools/testing/selftests/powerpc/pmu/Makefile | 1 + tools/testing/selftests/powerpc/pmu/ebb/Makefile | 1 + tools/testing/selftests/powerpc/primitives/Makefile | 1 + tools/testing/selftests/powerpc/ptrace/Makefile | 1 + tools/testing/selftests/powerpc/signal/Makefile | 1 + tools/testing/selftests/powerpc/stringloops/Makefile | 1 + tools/testing/selftests/powerpc/switch_endian/Makefile | 1 + tools/testing/selftests/powerpc/syscalls/Makefile | 1 + tools/testing/selftests/powerpc/tm/Makefile | 1 + tools/testing/selftests/powerpc/vphn/Makefile | 1 + 17 files changed, 17 insertions(+) diff --git a/tools/testing/selftests/powerpc/alignment/Makefile b/tools/testing/selftests/powerpc/alignment/Makefile index 93baacab7693..d056486f49de 100644 --- a/tools/testing/selftests/powerpc/alignment/Makefile +++ b/tools/testing/selftests/powerpc/alignment/Makefile @@ -1,5 +1,6 @@ TEST_GEN_PROGS := copy_first_unaligned alignment_handler +top_srcdir = ../../../../.. include ../../lib.mk $(TEST_GEN_PROGS): ../harness.c ../utils.c diff --git a/tools/testing/selftests/powerpc/benchmarks/Makefile b/tools/testing/selftests/powerpc/benchmarks/Makefile index b4d7432a0ecd..d40300a65b42 100644 --- a/tools/testing/selftests/powerpc/benchmarks/Makefile +++ b/tools/testing/selftests/powerpc/benchmarks/Makefile @@ -4,6 +4,7 @@ TEST_GEN_FILES := exec_target CFLAGS += -O2 +top_srcdir = ../../../../.. include ../../lib.mk $(TEST_GEN_PROGS): ../harness.c diff --git a/tools/testing/selftests/powerpc/cache_shape/Makefile b/tools/testing/selftests/powerpc/cache_shape/Makefile index 1be547434a49..ede4d3dae750 100644 --- a/tools/testing/selftests/powerpc/cache_shape/Makefile +++ b/tools/testing/selftests/powerpc/cache_shape/Makefile @@ -5,6 +5,7 @@ all: $(TEST_PROGS) $(TEST_PROGS): ../harness.c ../utils.c +top_srcdir = ../../../../.. include ../../lib.mk clean: diff --git a/tools/testing/selftests/powerpc/copyloops/Makefile b/tools/testing/selftests/powerpc/copyloops/Makefile index 1cf89a34d97c..44574f3818b3 100644 --- a/tools/testing/selftests/powerpc/copyloops/Makefile +++ b/tools/testing/selftests/powerpc/copyloops/Makefile @@ -17,6 +17,7 @@ TEST_GEN_PROGS := copyuser_64_t0 copyuser_64_t1 copyuser_64_t2 \ EXTRA_SOURCES := validate.c ../harness.c stubs.S +top_srcdir = ../../../../.. include ../../lib.mk $(OUTPUT)/copyuser_64_t%: copyuser_64.S $(EXTRA_SOURCES) diff --git a/tools/testing/selftests/powerpc/dscr/Makefile b/tools/testing/selftests/powerpc/dscr/Makefile index 55d7db7a616b..5df476364b4d 100644 --- a/tools/testing/selftests/powerpc/dscr/Makefile +++ b/tools/testing/selftests/powerpc/dscr/Makefile @@ -3,6 +3,7 @@ TEST_GEN_PROGS := dscr_default_test dscr_explicit_test dscr_user_test \ dscr_inherit_test dscr_inherit_exec_test dscr_sysfs_test \ dscr_sysfs_thread_test +top_srcdir = ../../../../.. include ../../lib.mk $(OUTPUT)/dscr_default_test: LDLIBS += -lpthread diff --git a/tools/testing/selftests/powerpc/math/Makefile b/tools/testing/selftests/powerpc/math/Makefile index 0dd3a01fdab9..11a10d7a2bbd 100644 --- a/tools/testing/selftests/powerpc/math/Makefile +++ b/tools/testing/selftests/powerpc/math/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 TEST_GEN_PROGS := fpu_syscall fpu_preempt fpu_signal vmx_syscall vmx_preempt vmx_signal vsx_preempt +top_srcdir = ../../../../.. include ../../lib.mk $(TEST_GEN_PROGS): ../harness.c diff --git a/tools/testing/selftests/powerpc/mm/Makefile b/tools/testing/selftests/powerpc/mm/Makefile index 8ebbe96d80a8..33ced6e0ad25 100644 --- a/tools/testing/selftests/powerpc/mm/Makefile +++ b/tools/testing/selftests/powerpc/mm/Makefile @@ -5,6 +5,7 @@ noarg: TEST_GEN_PROGS := hugetlb_vs_thp_test subpage_prot prot_sao segv_errors TEST_GEN_FILES := tempfile +top_srcdir = ../../../../.. include ../../lib.mk $(TEST_GEN_PROGS): ../harness.c diff --git a/tools/testing/selftests/powerpc/pmu/Makefile b/tools/testing/selftests/powerpc/pmu/Makefile index 6e1629bf5b09..19046db995fe 100644 --- a/tools/testing/selftests/powerpc/pmu/Makefile +++ b/tools/testing/selftests/powerpc/pmu/Makefile @@ -5,6 +5,7 @@ noarg: TEST_GEN_PROGS := count_instructions l3_bank_test per_event_excludes EXTRA_SOURCES := ../harness.c event.c lib.c ../utils.c +top_srcdir = ../../../../.. include ../../lib.mk all: $(TEST_GEN_PROGS) ebb diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile b/tools/testing/selftests/powerpc/pmu/ebb/Makefile index c4e64bc2e265..bd5dfa509272 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/Makefile +++ b/tools/testing/selftests/powerpc/pmu/ebb/Makefile @@ -17,6 +17,7 @@ TEST_GEN_PROGS := reg_access_test event_attributes_test cycles_test \ lost_exception_test no_handler_test \ cycles_with_mmcr2_test +top_srcdir = ../../../../../.. include ../../../lib.mk $(TEST_GEN_PROGS): ../../harness.c ../../utils.c ../event.c ../lib.c \ diff --git a/tools/testing/selftests/powerpc/primitives/Makefile b/tools/testing/selftests/powerpc/primitives/Makefile index 175366db7be8..ea2b7bd09e36 100644 --- a/tools/testing/selftests/powerpc/primitives/Makefile +++ b/tools/testing/selftests/powerpc/primitives/Makefile @@ -2,6 +2,7 @@ CFLAGS += -I$(CURDIR) TEST_GEN_PROGS := load_unaligned_zeropad +top_srcdir = ../../../../.. include ../../lib.mk $(TEST_GEN_PROGS): ../harness.c diff --git a/tools/testing/selftests/powerpc/ptrace/Makefile b/tools/testing/selftests/powerpc/ptrace/Makefile index 28f5b781a553..923d531265f8 100644 --- a/tools/testing/selftests/powerpc/ptrace/Makefile +++ b/tools/testing/selftests/powerpc/ptrace/Makefile @@ -4,6 +4,7 @@ TEST_PROGS := ptrace-gpr ptrace-tm-gpr ptrace-tm-spd-gpr \ ptrace-tm-spd-vsx ptrace-tm-spr ptrace-hwbreak ptrace-pkey core-pkey \ perf-hwbreak +top_srcdir = ../../../../.. include ../../lib.mk all: $(TEST_PROGS) diff --git a/tools/testing/selftests/powerpc/signal/Makefile b/tools/testing/selftests/powerpc/signal/Makefile index a7cbd5082e27..1fca25c6ace0 100644 --- a/tools/testing/selftests/powerpc/signal/Makefile +++ b/tools/testing/selftests/powerpc/signal/Makefile @@ -8,6 +8,7 @@ $(TEST_PROGS): ../harness.c ../utils.c signal.S CFLAGS += -maltivec signal_tm: CFLAGS += -mhtm +top_srcdir = ../../../../.. include ../../lib.mk clean: diff --git a/tools/testing/selftests/powerpc/stringloops/Makefile b/tools/testing/selftests/powerpc/stringloops/Makefile index 10b35c87a4f4..7fc0623d85c3 100644 --- a/tools/testing/selftests/powerpc/stringloops/Makefile +++ b/tools/testing/selftests/powerpc/stringloops/Makefile @@ -29,6 +29,7 @@ endif ASFLAGS = $(CFLAGS) +top_srcdir = ../../../../.. include ../../lib.mk $(TEST_GEN_PROGS): $(EXTRA_SOURCES) diff --git a/tools/testing/selftests/powerpc/switch_endian/Makefile b/tools/testing/selftests/powerpc/switch_endian/Makefile index 30b8ff8fb82e..fcd2dcb8972b 100644 --- a/tools/testing/selftests/powerpc/switch_endian/Makefile +++ b/tools/testing/selftests/powerpc/switch_endian/Makefile @@ -5,6 +5,7 @@ ASFLAGS += -O2 -Wall -g -nostdlib -m64 EXTRA_CLEAN = $(OUTPUT)/*.o $(OUTPUT)/check-reversed.S +top_srcdir = ../../../../.. include ../../lib.mk $(OUTPUT)/switch_endian_test: $(OUTPUT)/check-reversed.S diff --git a/tools/testing/selftests/powerpc/syscalls/Makefile b/tools/testing/selftests/powerpc/syscalls/Makefile index da22ca7c38c1..161b8846336f 100644 --- a/tools/testing/selftests/powerpc/syscalls/Makefile +++ b/tools/testing/selftests/powerpc/syscalls/Makefile @@ -2,6 +2,7 @@ TEST_GEN_PROGS := ipc_unmuxed CFLAGS += -I../../../../../usr/include +top_srcdir = ../../../../.. include ../../lib.mk $(TEST_GEN_PROGS): ../harness.c diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile index c0e45d2dde25..9fc2cf6fbc92 100644 --- a/tools/testing/selftests/powerpc/tm/Makefile +++ b/tools/testing/selftests/powerpc/tm/Makefile @@ -6,6 +6,7 @@ TEST_GEN_PROGS := tm-resched-dscr tm-syscall tm-signal-msr-resv tm-signal-stack tm-vmxcopy tm-fork tm-tar tm-tmspr tm-vmx-unavail tm-unavailable tm-trap \ $(SIGNAL_CONTEXT_CHK_TESTS) tm-sigreturn +top_srcdir = ../../../../.. include ../../lib.mk $(TEST_GEN_PROGS): ../harness.c ../utils.c diff --git a/tools/testing/selftests/powerpc/vphn/Makefile b/tools/testing/selftests/powerpc/vphn/Makefile index f8ced26748f8..fb82068c9fda 100644 --- a/tools/testing/selftests/powerpc/vphn/Makefile +++ b/tools/testing/selftests/powerpc/vphn/Makefile @@ -2,6 +2,7 @@ TEST_GEN_PROGS := test-vphn CFLAGS += -m64 +top_srcdir = ../../../../.. include ../../lib.mk $(TEST_GEN_PROGS): ../harness.c From 3cc5746e5ad7688e274e193fa71278d98aa52759 Mon Sep 17 00:00:00 2001 From: Nilesh Javali Date: Thu, 27 Sep 2018 05:15:35 -0700 Subject: [PATCH 1395/1762] scsi: qedi: Initialize the stats mutex lock Fix kernel NULL pointer dereference, Call Trace: [] __mutex_lock_slowpath+0xa6/0x1d0 [] mutex_lock+0x1f/0x2f [] qedi_get_protocol_tlv_data+0x61/0x450 [qedi] [] ? map_vm_area+0x2e/0x40 [] ? __vmalloc_node_range+0x170/0x280 [] ? qed_mfw_process_tlv_req+0x27d/0xbd0 [qed] [] qed_mfw_fill_tlv_data+0x4b/0xb0 [qed] [] qed_mfw_process_tlv_req+0x299/0xbd0 [qed] [] ? __switch_to+0xce/0x580 [] qed_slowpath_task+0x5b/0x80 [qed] Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index cc8e64dc65ad..e5bd035ebad0 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -2472,6 +2472,7 @@ static int __qedi_probe(struct pci_dev *pdev, int mode) /* start qedi context */ spin_lock_init(&qedi->hba_lock); spin_lock_init(&qedi->task_idx_lock); + mutex_init(&qedi->stats_lock); } qedi_ops->ll2->register_cb_ops(qedi->cdev, &qedi_ll2_cb_ops, qedi); qedi_ops->ll2->start(qedi->cdev, ¶ms); From dc71db34e4f3c06b8277c8f3c2ff014610607a8c Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 27 Sep 2018 15:13:08 +0100 Subject: [PATCH 1396/1762] rxrpc: Fix checks as to whether we should set up a new call There's a check in rxrpc_data_ready() that's checking the CLIENT_INITIATED flag in the packet type field rather than in the packet flags field. Fix this by creating a pair of helper functions to check whether the packet is going to the client or to the server and use them generally. Fixes: 248f219cb8bc ("rxrpc: Rewrite the data and ack handling code") Signed-off-by: David Howells --- net/rxrpc/ar-internal.h | 10 ++++++++++ net/rxrpc/conn_object.c | 2 +- net/rxrpc/input.c | 12 ++++-------- 3 files changed, 15 insertions(+), 9 deletions(-) diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h index c97558710421..9fcb3e197b14 100644 --- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -463,6 +463,16 @@ struct rxrpc_connection { u8 out_clientflag; /* RXRPC_CLIENT_INITIATED if we are client */ }; +static inline bool rxrpc_to_server(const struct rxrpc_skb_priv *sp) +{ + return sp->hdr.flags & RXRPC_CLIENT_INITIATED; +} + +static inline bool rxrpc_to_client(const struct rxrpc_skb_priv *sp) +{ + return !rxrpc_to_server(sp); +} + /* * Flags in call->flags. */ diff --git a/net/rxrpc/conn_object.c b/net/rxrpc/conn_object.c index 1746b48cb165..390ba50cfab4 100644 --- a/net/rxrpc/conn_object.c +++ b/net/rxrpc/conn_object.c @@ -96,7 +96,7 @@ struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *local, k.epoch = sp->hdr.epoch; k.cid = sp->hdr.cid & RXRPC_CIDMASK; - if (sp->hdr.flags & RXRPC_CLIENT_INITIATED) { + if (rxrpc_to_server(sp)) { /* We need to look up service connections by the full protocol * parameter set. We look up the peer first as an intermediate * step and then the connection from the peer's tree. diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index cfdc199c6351..ec299c627f77 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -1177,10 +1177,6 @@ void rxrpc_data_ready(struct sock *udp_sk) trace_rxrpc_rx_packet(sp); - _net("Rx RxRPC %s ep=%x call=%x:%x", - sp->hdr.flags & RXRPC_CLIENT_INITIATED ? "ToServer" : "ToClient", - sp->hdr.epoch, sp->hdr.cid, sp->hdr.callNumber); - if (sp->hdr.type >= RXRPC_N_PACKET_TYPES || !((RXRPC_SUPPORTED_PACKET_TYPES >> sp->hdr.type) & 1)) { _proto("Rx Bad Packet Type %u", sp->hdr.type); @@ -1189,13 +1185,13 @@ void rxrpc_data_ready(struct sock *udp_sk) switch (sp->hdr.type) { case RXRPC_PACKET_TYPE_VERSION: - if (!(sp->hdr.flags & RXRPC_CLIENT_INITIATED)) + if (rxrpc_to_client(sp)) goto discard; rxrpc_post_packet_to_local(local, skb); goto out; case RXRPC_PACKET_TYPE_BUSY: - if (sp->hdr.flags & RXRPC_CLIENT_INITIATED) + if (rxrpc_to_server(sp)) goto discard; /* Fall through */ @@ -1280,7 +1276,7 @@ void rxrpc_data_ready(struct sock *udp_sk) call = rcu_dereference(chan->call); if (sp->hdr.callNumber > chan->call_id) { - if (!(sp->hdr.flags & RXRPC_CLIENT_INITIATED)) { + if (rxrpc_to_client(sp)) { rcu_read_unlock(); goto reject_packet; } @@ -1303,7 +1299,7 @@ void rxrpc_data_ready(struct sock *udp_sk) } if (!call || atomic_read(&call->usage) == 0) { - if (!(sp->hdr.type & RXRPC_CLIENT_INITIATED) || + if (rxrpc_to_client(sp) || sp->hdr.callNumber == 0 || sp->hdr.type != RXRPC_PACKET_TYPE_DATA) goto bad_message_unlock; From b604dd9883f783a94020d772e4fe03160f455372 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 27 Sep 2018 15:13:08 +0100 Subject: [PATCH 1397/1762] rxrpc: Fix RTT gathering Fix RTT information gathering in AF_RXRPC by the following means: (1) Enable Rx timestamping on the transport socket with SO_TIMESTAMPNS. (2) If the sk_buff doesn't have a timestamp set when rxrpc_data_ready() collects it, set it at that point. (3) Allow ACKs to be requested on the last packet of a client call, but not a service call. We need to be careful lest we undo: bf7d620abf22c321208a4da4f435e7af52551a21 Author: David Howells Date: Thu Oct 6 08:11:51 2016 +0100 rxrpc: Don't request an ACK on the last DATA packet of a call's Tx phase but that only really applies to service calls that we're handling, since the client side gets to send the final ACK (or not). (4) When about to transmit an ACK or DATA packet, record the Tx timestamp before only; don't update the timestamp afterwards. (5) Switch the ordering between recording the serial and recording the timestamp to always set the serial number first. The serial number shouldn't be seen referenced by an ACK packet until we've transmitted the packet bearing it - so in the Rx path, we don't need the timestamp until we've checked the serial number. Fixes: cf1a6474f807 ("rxrpc: Add per-peer RTT tracker") Signed-off-by: David Howells --- net/rxrpc/input.c | 8 ++++++-- net/rxrpc/local_object.c | 9 +++++++++ net/rxrpc/output.c | 31 ++++++++++++++++++------------- 3 files changed, 33 insertions(+), 15 deletions(-) diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index ec299c627f77..7f9ed3a60b9a 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -622,13 +622,14 @@ static void rxrpc_input_requested_ack(struct rxrpc_call *call, if (!skb) continue; + sent_at = skb->tstamp; + smp_rmb(); /* Read timestamp before serial. */ sp = rxrpc_skb(skb); if (sp->hdr.serial != orig_serial) continue; - smp_rmb(); - sent_at = skb->tstamp; goto found; } + return; found: @@ -1143,6 +1144,9 @@ void rxrpc_data_ready(struct sock *udp_sk) return; } + if (skb->tstamp == 0) + skb->tstamp = ktime_get_real(); + rxrpc_new_skb(skb, rxrpc_skb_rx_received); _net("recv skb %p", skb); diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c index 777c3ed4cfc0..81de7d889ffa 100644 --- a/net/rxrpc/local_object.c +++ b/net/rxrpc/local_object.c @@ -173,6 +173,15 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) _debug("setsockopt failed"); goto error; } + + /* We want receive timestamps. */ + opt = 1; + ret = kernel_setsockopt(local->socket, SOL_SOCKET, SO_TIMESTAMPNS, + (char *)&opt, sizeof(opt)); + if (ret < 0) { + _debug("setsockopt failed"); + goto error; + } break; default: diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c index ccf5de160444..8a4da3fe96df 100644 --- a/net/rxrpc/output.c +++ b/net/rxrpc/output.c @@ -124,7 +124,6 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, bool ping, struct kvec iov[2]; rxrpc_serial_t serial; rxrpc_seq_t hard_ack, top; - ktime_t now; size_t len, n; int ret; u8 reason; @@ -196,9 +195,7 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, bool ping, /* We need to stick a time in before we send the packet in case * the reply gets back before kernel_sendmsg() completes - but * asking UDP to send the packet can take a relatively long - * time, so we update the time after, on the assumption that - * the packet transmission is more likely to happen towards the - * end of the kernel_sendmsg() call. + * time. */ call->ping_time = ktime_get_real(); set_bit(RXRPC_CALL_PINGING, &call->flags); @@ -206,9 +203,6 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, bool ping, } ret = kernel_sendmsg(conn->params.local->socket, &msg, iov, 2, len); - now = ktime_get_real(); - if (ping) - call->ping_time = now; conn->params.peer->last_tx_at = ktime_get_seconds(); if (ret < 0) trace_rxrpc_tx_fail(call->debug_id, serial, ret, @@ -363,8 +357,14 @@ int rxrpc_send_data_packet(struct rxrpc_call *call, struct sk_buff *skb, /* If our RTT cache needs working on, request an ACK. Also request * ACKs if a DATA packet appears to have been lost. + * + * However, we mustn't request an ACK on the last reply packet of a + * service call, lest OpenAFS incorrectly send us an ACK with some + * soft-ACKs in it and then never follow up with a proper hard ACK. */ - if (!(sp->hdr.flags & RXRPC_LAST_PACKET) && + if ((!(sp->hdr.flags & RXRPC_LAST_PACKET) || + rxrpc_to_server(sp) + ) && (test_and_clear_bit(RXRPC_CALL_EV_ACK_LOST, &call->events) || retrans || call->cong_mode == RXRPC_CALL_SLOW_START || @@ -390,6 +390,11 @@ int rxrpc_send_data_packet(struct rxrpc_call *call, struct sk_buff *skb, goto send_fragmentable; down_read(&conn->params.local->defrag_sem); + + sp->hdr.serial = serial; + smp_wmb(); /* Set serial before timestamp */ + skb->tstamp = ktime_get_real(); + /* send the packet by UDP * - returns -EMSGSIZE if UDP would have to fragment the packet * to go out of the interface @@ -413,12 +418,8 @@ done: trace_rxrpc_tx_data(call, sp->hdr.seq, serial, whdr.flags, retrans, lost); if (ret >= 0) { - ktime_t now = ktime_get_real(); - skb->tstamp = now; - smp_wmb(); - sp->hdr.serial = serial; if (whdr.flags & RXRPC_REQUEST_ACK) { - call->peer->rtt_last_req = now; + call->peer->rtt_last_req = skb->tstamp; trace_rxrpc_rtt_tx(call, rxrpc_rtt_tx_data, serial); if (call->peer->rtt_usage > 1) { unsigned long nowj = jiffies, ack_lost_at; @@ -457,6 +458,10 @@ send_fragmentable: down_write(&conn->params.local->defrag_sem); + sp->hdr.serial = serial; + smp_wmb(); /* Set serial before timestamp */ + skb->tstamp = ktime_get_real(); + switch (conn->params.local->srx.transport.family) { case AF_INET: opt = IP_PMTUDISC_DONT; From ece64fec164f523bfbe874abdef2a0e6ff376251 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 27 Sep 2018 15:13:08 +0100 Subject: [PATCH 1398/1762] rxrpc: Emit BUSY packets when supposed to rather than ABORTs In the input path, a received sk_buff can be marked for rejection by setting RXRPC_SKB_MARK_* in skb->mark and, if needed, some auxiliary data (such as an abort code) in skb->priority. The rejection is handled by queueing the sk_buff up for dealing with in process context. The output code reads the mark and priority and, theoretically, generates an appropriate response packet. However, if RXRPC_SKB_MARK_BUSY is set, this isn't noticed and an ABORT message with a random abort code is generated (since skb->priority wasn't set to anything). Fix this by outputting the appropriate sort of packet. Also, whilst we're at it, most of the marks are no longer used, so remove them and rename the remaining two to something more obvious. Fixes: 248f219cb8bc ("rxrpc: Rewrite the data and ack handling code") Signed-off-by: David Howells --- net/rxrpc/ar-internal.h | 13 ++++--------- net/rxrpc/call_accept.c | 6 +++--- net/rxrpc/input.c | 2 +- net/rxrpc/output.c | 23 ++++++++++++++++++----- 4 files changed, 26 insertions(+), 18 deletions(-) diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h index 9fcb3e197b14..e8861cb78070 100644 --- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -40,17 +40,12 @@ struct rxrpc_crypt { struct rxrpc_connection; /* - * Mark applied to socket buffers. + * Mark applied to socket buffers in skb->mark. skb->priority is used + * to pass supplementary information. */ enum rxrpc_skb_mark { - RXRPC_SKB_MARK_DATA, /* data message */ - RXRPC_SKB_MARK_FINAL_ACK, /* final ACK received message */ - RXRPC_SKB_MARK_BUSY, /* server busy message */ - RXRPC_SKB_MARK_REMOTE_ABORT, /* remote abort message */ - RXRPC_SKB_MARK_LOCAL_ABORT, /* local abort message */ - RXRPC_SKB_MARK_NET_ERROR, /* network error message */ - RXRPC_SKB_MARK_LOCAL_ERROR, /* local error message */ - RXRPC_SKB_MARK_NEW_CALL, /* local error message */ + RXRPC_SKB_MARK_REJECT_BUSY, /* Reject with BUSY */ + RXRPC_SKB_MARK_REJECT_ABORT, /* Reject with ABORT (code in skb->priority) */ }; /* diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c index 9d1e298b784c..e88f131c1d7f 100644 --- a/net/rxrpc/call_accept.c +++ b/net/rxrpc/call_accept.c @@ -353,7 +353,7 @@ struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *local, trace_rxrpc_abort(0, "INV", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq, RX_INVALID_OPERATION, EOPNOTSUPP); - skb->mark = RXRPC_SKB_MARK_LOCAL_ABORT; + skb->mark = RXRPC_SKB_MARK_REJECT_ABORT; skb->priority = RX_INVALID_OPERATION; _leave(" = NULL [service]"); return NULL; @@ -364,7 +364,7 @@ found_service: rx->sk.sk_state == RXRPC_CLOSE) { trace_rxrpc_abort(0, "CLS", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq, RX_INVALID_OPERATION, ESHUTDOWN); - skb->mark = RXRPC_SKB_MARK_LOCAL_ABORT; + skb->mark = RXRPC_SKB_MARK_REJECT_ABORT; skb->priority = RX_INVALID_OPERATION; _leave(" = NULL [close]"); call = NULL; @@ -373,7 +373,7 @@ found_service: call = rxrpc_alloc_incoming_call(rx, local, conn, skb); if (!call) { - skb->mark = RXRPC_SKB_MARK_BUSY; + skb->mark = RXRPC_SKB_MARK_REJECT_BUSY; _leave(" = NULL [busy]"); call = NULL; goto out; diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index 7f9ed3a60b9a..b0f12471f5e7 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -1354,7 +1354,7 @@ bad_message: protocol_error: skb->priority = RX_PROTOCOL_ERROR; post_abort: - skb->mark = RXRPC_SKB_MARK_LOCAL_ABORT; + skb->mark = RXRPC_SKB_MARK_REJECT_ABORT; reject_packet: trace_rxrpc_rx_done(skb->mark, skb->priority); rxrpc_reject_packet(local, skb); diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c index 8a4da3fe96df..e8fb8922bca8 100644 --- a/net/rxrpc/output.c +++ b/net/rxrpc/output.c @@ -524,7 +524,7 @@ void rxrpc_reject_packets(struct rxrpc_local *local) struct kvec iov[2]; size_t size; __be32 code; - int ret; + int ret, ioc; _enter("%d", local->debug_id); @@ -532,7 +532,6 @@ void rxrpc_reject_packets(struct rxrpc_local *local) iov[0].iov_len = sizeof(whdr); iov[1].iov_base = &code; iov[1].iov_len = sizeof(code); - size = sizeof(whdr) + sizeof(code); msg.msg_name = &srx.transport; msg.msg_control = NULL; @@ -540,17 +539,31 @@ void rxrpc_reject_packets(struct rxrpc_local *local) msg.msg_flags = 0; memset(&whdr, 0, sizeof(whdr)); - whdr.type = RXRPC_PACKET_TYPE_ABORT; while ((skb = skb_dequeue(&local->reject_queue))) { rxrpc_see_skb(skb, rxrpc_skb_rx_seen); sp = rxrpc_skb(skb); + switch (skb->mark) { + case RXRPC_SKB_MARK_REJECT_BUSY: + whdr.type = RXRPC_PACKET_TYPE_BUSY; + size = sizeof(whdr); + ioc = 1; + break; + case RXRPC_SKB_MARK_REJECT_ABORT: + whdr.type = RXRPC_PACKET_TYPE_ABORT; + code = htonl(skb->priority); + size = sizeof(whdr) + sizeof(code); + ioc = 2; + break; + default: + rxrpc_free_skb(skb, rxrpc_skb_rx_freed); + continue; + } + if (rxrpc_extract_addr_from_skb(local, &srx, skb) == 0) { msg.msg_namelen = srx.transport_len; - code = htonl(skb->priority); - whdr.epoch = htonl(sp->hdr.epoch); whdr.cid = htonl(sp->hdr.cid); whdr.callNumber = htonl(sp->hdr.callNumber); From 403fc2a138457f1071b186786a7589ef7382c8bc Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 27 Sep 2018 15:13:08 +0100 Subject: [PATCH 1399/1762] rxrpc: Improve up-front incoming packet checking Do more up-front checking on incoming packets to weed out invalid ones and also ones aimed at services that we don't support. Whilst we're at it, replace the clearing of call and skew if we don't find a connection with just initialising the variables to zero at the top of the function. Signed-off-by: David Howells --- net/rxrpc/input.c | 63 +++++++++++++++++++++++++++++++++++--------- net/rxrpc/protocol.h | 15 ----------- 2 files changed, 50 insertions(+), 28 deletions(-) diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index b0f12471f5e7..a569e9e010d1 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -1125,12 +1125,13 @@ void rxrpc_data_ready(struct sock *udp_sk) { struct rxrpc_connection *conn; struct rxrpc_channel *chan; - struct rxrpc_call *call; + struct rxrpc_call *call = NULL; struct rxrpc_skb_priv *sp; struct rxrpc_local *local = udp_sk->sk_user_data; + struct rxrpc_sock *rx; struct sk_buff *skb; unsigned int channel; - int ret, skew; + int ret, skew = 0; _enter("%p", udp_sk); @@ -1181,12 +1182,6 @@ void rxrpc_data_ready(struct sock *udp_sk) trace_rxrpc_rx_packet(sp); - if (sp->hdr.type >= RXRPC_N_PACKET_TYPES || - !((RXRPC_SUPPORTED_PACKET_TYPES >> sp->hdr.type) & 1)) { - _proto("Rx Bad Packet Type %u", sp->hdr.type); - goto bad_message; - } - switch (sp->hdr.type) { case RXRPC_PACKET_TYPE_VERSION: if (rxrpc_to_client(sp)) @@ -1198,24 +1193,63 @@ void rxrpc_data_ready(struct sock *udp_sk) if (rxrpc_to_server(sp)) goto discard; /* Fall through */ + case RXRPC_PACKET_TYPE_ACK: + case RXRPC_PACKET_TYPE_ACKALL: + if (sp->hdr.callNumber == 0) + goto bad_message; + /* Fall through */ + case RXRPC_PACKET_TYPE_ABORT: + break; case RXRPC_PACKET_TYPE_DATA: - if (sp->hdr.callNumber == 0) + if (sp->hdr.callNumber == 0 || + sp->hdr.seq == 0) goto bad_message; if (sp->hdr.flags & RXRPC_JUMBO_PACKET && !rxrpc_validate_jumbo(skb)) goto bad_message; break; + case RXRPC_PACKET_TYPE_CHALLENGE: + if (rxrpc_to_server(sp)) + goto discard; + break; + case RXRPC_PACKET_TYPE_RESPONSE: + if (rxrpc_to_client(sp)) + goto discard; + break; + /* Packet types 9-11 should just be ignored. */ case RXRPC_PACKET_TYPE_PARAMS: case RXRPC_PACKET_TYPE_10: case RXRPC_PACKET_TYPE_11: goto discard; + + default: + _proto("Rx Bad Packet Type %u", sp->hdr.type); + goto bad_message; } + if (sp->hdr.serviceId == 0) + goto bad_message; + rcu_read_lock(); + if (rxrpc_to_server(sp)) { + /* Weed out packets to services we're not offering. Packets + * that would begin a call are explicitly rejected and the rest + * are just discarded. + */ + rx = rcu_dereference(local->service); + if (!rx || (sp->hdr.serviceId != rx->srx.srx_service && + sp->hdr.serviceId != rx->second_service)) { + if (sp->hdr.type == RXRPC_PACKET_TYPE_DATA && + sp->hdr.seq == 1) + goto unsupported_service; + goto discard_unlock; + } + } + conn = rxrpc_find_connection_rcu(local, skb); if (conn) { if (sp->hdr.securityIndex != conn->security_ix) @@ -1297,14 +1331,10 @@ void rxrpc_data_ready(struct sock *udp_sk) if (!test_bit(RXRPC_CALL_RX_HEARD, &call->flags)) set_bit(RXRPC_CALL_RX_HEARD, &call->flags); } - } else { - skew = 0; - call = NULL; } if (!call || atomic_read(&call->usage) == 0) { if (rxrpc_to_client(sp) || - sp->hdr.callNumber == 0 || sp->hdr.type != RXRPC_PACKET_TYPE_DATA) goto bad_message_unlock; if (sp->hdr.seq != 1) @@ -1340,6 +1370,13 @@ wrong_security: skb->priority = RXKADINCONSISTENCY; goto post_abort; +unsupported_service: + rcu_read_unlock(); + trace_rxrpc_abort(0, "INV", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq, + RX_INVALID_OPERATION, EOPNOTSUPP); + skb->priority = RX_INVALID_OPERATION; + goto post_abort; + reupgrade: rcu_read_unlock(); trace_rxrpc_abort(0, "UPG", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq, diff --git a/net/rxrpc/protocol.h b/net/rxrpc/protocol.h index 93da73bf7098..f9cb83c938f3 100644 --- a/net/rxrpc/protocol.h +++ b/net/rxrpc/protocol.h @@ -50,7 +50,6 @@ struct rxrpc_wire_header { #define RXRPC_PACKET_TYPE_10 10 /* Ignored */ #define RXRPC_PACKET_TYPE_11 11 /* Ignored */ #define RXRPC_PACKET_TYPE_VERSION 13 /* version string request */ -#define RXRPC_N_PACKET_TYPES 14 /* number of packet types (incl type 0) */ uint8_t flags; /* packet flags */ #define RXRPC_CLIENT_INITIATED 0x01 /* signifies a packet generated by a client */ @@ -72,20 +71,6 @@ struct rxrpc_wire_header { } __packed; -#define RXRPC_SUPPORTED_PACKET_TYPES ( \ - (1 << RXRPC_PACKET_TYPE_DATA) | \ - (1 << RXRPC_PACKET_TYPE_ACK) | \ - (1 << RXRPC_PACKET_TYPE_BUSY) | \ - (1 << RXRPC_PACKET_TYPE_ABORT) | \ - (1 << RXRPC_PACKET_TYPE_ACKALL) | \ - (1 << RXRPC_PACKET_TYPE_CHALLENGE) | \ - (1 << RXRPC_PACKET_TYPE_RESPONSE) | \ - /*(1 << RXRPC_PACKET_TYPE_DEBUG) | */ \ - (1 << RXRPC_PACKET_TYPE_PARAMS) | \ - (1 << RXRPC_PACKET_TYPE_10) | \ - (1 << RXRPC_PACKET_TYPE_11) | \ - (1 << RXRPC_PACKET_TYPE_VERSION)) - /*****************************************************************************/ /* * jumbo packet secondary header From 0099dc589bfa7caf6f2608c4cbc1181cfee22b0c Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 27 Sep 2018 15:13:09 +0100 Subject: [PATCH 1400/1762] rxrpc: Make service call handling more robust Make the following changes to improve the robustness of the code that sets up a new service call: (1) Cache the rxrpc_sock struct obtained in rxrpc_data_ready() to do a service ID check and pass that along to rxrpc_new_incoming_call(). This means that I can remove the check from rxrpc_new_incoming_call() without the need to worry about the socket attached to the local endpoint getting replaced - which would invalidate the check. (2) Cache the rxrpc_peer struct, thereby allowing the peer search to be done once. The peer is passed to rxrpc_new_incoming_call(), thereby saving the need to repeat the search. This also reduces the possibility of rxrpc_publish_service_conn() BUG()'ing due to the detection of a duplicate connection, despite the initial search done by rxrpc_find_connection_rcu() having turned up nothing. This BUG() shouldn't ever get hit since rxrpc_data_ready() *should* be non-reentrant and the result of the initial search should still hold true, but it has proven possible to hit. I *think* this may be due to __rxrpc_lookup_peer_rcu() cutting short the iteration over the hash table if it finds a matching peer with a zero usage count, but I don't know for sure since it's only ever been hit once that I know of. Another possibility is that a bug in rxrpc_data_ready() that checked the wrong byte in the header for the RXRPC_CLIENT_INITIATED flag might've let through a packet that caused a spurious and invalid call to be set up. That is addressed in another patch. (3) Fix __rxrpc_lookup_peer_rcu() to skip peer records that have a zero usage count rather than stopping and returning not found, just in case there's another peer record behind it in the bucket. (4) Don't search the peer records in rxrpc_alloc_incoming_call(), but rather either use the peer cached in (2) or, if one wasn't found, preemptively install a new one. Fixes: 8496af50eb38 ("rxrpc: Use RCU to access a peer's service connection tree") Signed-off-by: David Howells --- net/rxrpc/ar-internal.h | 8 +++++--- net/rxrpc/call_accept.c | 41 ++++++++++++----------------------------- net/rxrpc/conn_object.c | 7 ++++++- net/rxrpc/input.c | 7 ++++--- net/rxrpc/peer_object.c | 35 +++++++++++------------------------ 5 files changed, 38 insertions(+), 60 deletions(-) diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h index e8861cb78070..c72686193d83 100644 --- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -722,6 +722,8 @@ extern struct workqueue_struct *rxrpc_workqueue; int rxrpc_service_prealloc(struct rxrpc_sock *, gfp_t); void rxrpc_discard_prealloc(struct rxrpc_sock *); struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *, + struct rxrpc_sock *, + struct rxrpc_peer *, struct rxrpc_connection *, struct sk_buff *); void rxrpc_accept_incoming_calls(struct rxrpc_local *); @@ -913,7 +915,8 @@ extern unsigned int rxrpc_closed_conn_expiry; struct rxrpc_connection *rxrpc_alloc_connection(gfp_t); struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *, - struct sk_buff *); + struct sk_buff *, + struct rxrpc_peer **); void __rxrpc_disconnect_call(struct rxrpc_connection *, struct rxrpc_call *); void rxrpc_disconnect_call(struct rxrpc_call *); void rxrpc_kill_connection(struct rxrpc_connection *); @@ -1049,8 +1052,7 @@ struct rxrpc_peer *rxrpc_lookup_peer_rcu(struct rxrpc_local *, struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *, struct sockaddr_rxrpc *, gfp_t); struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *, gfp_t); -struct rxrpc_peer *rxrpc_lookup_incoming_peer(struct rxrpc_local *, - struct rxrpc_peer *); +void rxrpc_new_incoming_peer(struct rxrpc_local *, struct rxrpc_peer *); void rxrpc_destroy_all_peers(struct rxrpc_net *); struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *); struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *); diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c index e88f131c1d7f..9c7f26d06a52 100644 --- a/net/rxrpc/call_accept.c +++ b/net/rxrpc/call_accept.c @@ -249,11 +249,11 @@ void rxrpc_discard_prealloc(struct rxrpc_sock *rx) */ static struct rxrpc_call *rxrpc_alloc_incoming_call(struct rxrpc_sock *rx, struct rxrpc_local *local, + struct rxrpc_peer *peer, struct rxrpc_connection *conn, struct sk_buff *skb) { struct rxrpc_backlog *b = rx->backlog; - struct rxrpc_peer *peer, *xpeer; struct rxrpc_call *call; unsigned short call_head, conn_head, peer_head; unsigned short call_tail, conn_tail, peer_tail; @@ -276,21 +276,18 @@ static struct rxrpc_call *rxrpc_alloc_incoming_call(struct rxrpc_sock *rx, return NULL; if (!conn) { - /* No connection. We're going to need a peer to start off - * with. If one doesn't yet exist, use a spare from the - * preallocation set. We dump the address into the spare in - * anticipation - and to save on stack space. - */ - xpeer = b->peer_backlog[peer_tail]; - if (rxrpc_extract_addr_from_skb(local, &xpeer->srx, skb) < 0) - return NULL; - - peer = rxrpc_lookup_incoming_peer(local, xpeer); - if (peer == xpeer) { + if (peer && !rxrpc_get_peer_maybe(peer)) + peer = NULL; + if (!peer) { + peer = b->peer_backlog[peer_tail]; + if (rxrpc_extract_addr_from_skb(local, &peer->srx, skb) < 0) + return NULL; b->peer_backlog[peer_tail] = NULL; smp_store_release(&b->peer_backlog_tail, (peer_tail + 1) & (RXRPC_BACKLOG_MAX - 1)); + + rxrpc_new_incoming_peer(local, peer); } /* Now allocate and set up the connection */ @@ -335,30 +332,16 @@ static struct rxrpc_call *rxrpc_alloc_incoming_call(struct rxrpc_sock *rx, * The call is returned with the user access mutex held. */ struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *local, + struct rxrpc_sock *rx, + struct rxrpc_peer *peer, struct rxrpc_connection *conn, struct sk_buff *skb) { struct rxrpc_skb_priv *sp = rxrpc_skb(skb); - struct rxrpc_sock *rx; struct rxrpc_call *call; - u16 service_id = sp->hdr.serviceId; _enter(""); - /* Get the socket providing the service */ - rx = rcu_dereference(local->service); - if (rx && (service_id == rx->srx.srx_service || - service_id == rx->second_service)) - goto found_service; - - trace_rxrpc_abort(0, "INV", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq, - RX_INVALID_OPERATION, EOPNOTSUPP); - skb->mark = RXRPC_SKB_MARK_REJECT_ABORT; - skb->priority = RX_INVALID_OPERATION; - _leave(" = NULL [service]"); - return NULL; - -found_service: spin_lock(&rx->incoming_lock); if (rx->sk.sk_state == RXRPC_SERVER_LISTEN_DISABLED || rx->sk.sk_state == RXRPC_CLOSE) { @@ -371,7 +354,7 @@ found_service: goto out; } - call = rxrpc_alloc_incoming_call(rx, local, conn, skb); + call = rxrpc_alloc_incoming_call(rx, local, peer, conn, skb); if (!call) { skb->mark = RXRPC_SKB_MARK_REJECT_BUSY; _leave(" = NULL [busy]"); diff --git a/net/rxrpc/conn_object.c b/net/rxrpc/conn_object.c index 390ba50cfab4..b4438f98dc5c 100644 --- a/net/rxrpc/conn_object.c +++ b/net/rxrpc/conn_object.c @@ -69,10 +69,14 @@ struct rxrpc_connection *rxrpc_alloc_connection(gfp_t gfp) * If successful, a pointer to the connection is returned, but no ref is taken. * NULL is returned if there is no match. * + * When searching for a service call, if we find a peer but no connection, we + * return that through *_peer in case we need to create a new service call. + * * The caller must be holding the RCU read lock. */ struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *local, - struct sk_buff *skb) + struct sk_buff *skb, + struct rxrpc_peer **_peer) { struct rxrpc_connection *conn; struct rxrpc_conn_proto k; @@ -104,6 +108,7 @@ struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *local, peer = rxrpc_lookup_peer_rcu(local, &srx); if (!peer) goto not_found; + *_peer = peer; conn = rxrpc_find_service_conn_rcu(peer, skb); if (!conn || atomic_read(&conn->usage) == 0) goto not_found; diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index a569e9e010d1..800f5b8a1baa 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -1128,7 +1128,8 @@ void rxrpc_data_ready(struct sock *udp_sk) struct rxrpc_call *call = NULL; struct rxrpc_skb_priv *sp; struct rxrpc_local *local = udp_sk->sk_user_data; - struct rxrpc_sock *rx; + struct rxrpc_peer *peer = NULL; + struct rxrpc_sock *rx = NULL; struct sk_buff *skb; unsigned int channel; int ret, skew = 0; @@ -1250,7 +1251,7 @@ void rxrpc_data_ready(struct sock *udp_sk) } } - conn = rxrpc_find_connection_rcu(local, skb); + conn = rxrpc_find_connection_rcu(local, skb, &peer); if (conn) { if (sp->hdr.securityIndex != conn->security_ix) goto wrong_security; @@ -1339,7 +1340,7 @@ void rxrpc_data_ready(struct sock *udp_sk) goto bad_message_unlock; if (sp->hdr.seq != 1) goto discard_unlock; - call = rxrpc_new_incoming_call(local, conn, skb); + call = rxrpc_new_incoming_call(local, rx, peer, conn, skb); if (!call) { rcu_read_unlock(); goto reject_packet; diff --git a/net/rxrpc/peer_object.c b/net/rxrpc/peer_object.c index 1dc7648e3eff..70083e8fb6e5 100644 --- a/net/rxrpc/peer_object.c +++ b/net/rxrpc/peer_object.c @@ -124,11 +124,9 @@ static struct rxrpc_peer *__rxrpc_lookup_peer_rcu( struct rxrpc_net *rxnet = local->rxnet; hash_for_each_possible_rcu(rxnet->peer_hash, peer, hash_link, hash_key) { - if (rxrpc_peer_cmp_key(peer, local, srx, hash_key) == 0) { - if (atomic_read(&peer->usage) == 0) - return NULL; + if (rxrpc_peer_cmp_key(peer, local, srx, hash_key) == 0 && + atomic_read(&peer->usage) > 0) return peer; - } } return NULL; @@ -299,34 +297,23 @@ static struct rxrpc_peer *rxrpc_create_peer(struct rxrpc_local *local, } /* - * Set up a new incoming peer. The address is prestored in the preallocated - * peer. + * Set up a new incoming peer. There shouldn't be any other matching peers + * since we've already done a search in the list from the non-reentrant context + * (the data_ready handler) that is the only place we can add new peers. */ -struct rxrpc_peer *rxrpc_lookup_incoming_peer(struct rxrpc_local *local, - struct rxrpc_peer *prealloc) +void rxrpc_new_incoming_peer(struct rxrpc_local *local, struct rxrpc_peer *peer) { - struct rxrpc_peer *peer; struct rxrpc_net *rxnet = local->rxnet; unsigned long hash_key; - hash_key = rxrpc_peer_hash_key(local, &prealloc->srx); - prealloc->local = local; - rxrpc_init_peer(prealloc, hash_key); + hash_key = rxrpc_peer_hash_key(local, &peer->srx); + peer->local = local; + rxrpc_init_peer(peer, hash_key); spin_lock(&rxnet->peer_hash_lock); - - /* Need to check that we aren't racing with someone else */ - peer = __rxrpc_lookup_peer_rcu(local, &prealloc->srx, hash_key); - if (peer && !rxrpc_get_peer_maybe(peer)) - peer = NULL; - if (!peer) { - peer = prealloc; - hash_add_rcu(rxnet->peer_hash, &peer->hash_link, hash_key); - list_add_tail(&peer->keepalive_link, &rxnet->peer_keepalive_new); - } - + hash_add_rcu(rxnet->peer_hash, &peer->hash_link, hash_key); + list_add_tail(&peer->keepalive_link, &rxnet->peer_keepalive_new); spin_unlock(&rxnet->peer_hash_lock); - return peer; } /* From 37a675e768d7606fe8a53e0c459c9b53e121ac20 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 27 Sep 2018 15:13:09 +0100 Subject: [PATCH 1401/1762] rxrpc: Fix transport sockopts to get IPv4 errors on an IPv6 socket It seems that enabling IPV6_RECVERR on an IPv6 socket doesn't also turn on IP_RECVERR, so neither local errors nor ICMP-transported remote errors from IPv4 peer addresses are returned to the AF_RXRPC protocol. Make the sockopt setting code in rxrpc_open_socket() fall through from the AF_INET6 case to the AF_INET case to turn on all the AF_INET options too in the AF_INET6 case. Fixes: f2aeed3a591f ("rxrpc: Fix error reception on AF_INET6 sockets") Signed-off-by: David Howells --- net/rxrpc/local_object.c | 43 +++++++++++++++++++++------------------- 1 file changed, 23 insertions(+), 20 deletions(-) diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c index 81de7d889ffa..94d234e9c685 100644 --- a/net/rxrpc/local_object.c +++ b/net/rxrpc/local_object.c @@ -135,6 +135,29 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) } switch (local->srx.transport.family) { + case AF_INET6: + /* we want to receive ICMPv6 errors */ + opt = 1; + ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_RECVERR, + (char *) &opt, sizeof(opt)); + if (ret < 0) { + _debug("setsockopt failed"); + goto error; + } + + /* we want to set the don't fragment bit */ + opt = IPV6_PMTUDISC_DO; + ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_MTU_DISCOVER, + (char *) &opt, sizeof(opt)); + if (ret < 0) { + _debug("setsockopt failed"); + goto error; + } + + /* Fall through and set IPv4 options too otherwise we don't get + * errors from IPv4 packets sent through the IPv6 socket. + */ + case AF_INET: /* we want to receive ICMP errors */ opt = 1; @@ -153,26 +176,6 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) _debug("setsockopt failed"); goto error; } - break; - - case AF_INET6: - /* we want to receive ICMP errors */ - opt = 1; - ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_RECVERR, - (char *) &opt, sizeof(opt)); - if (ret < 0) { - _debug("setsockopt failed"); - goto error; - } - - /* we want to set the don't fragment bit */ - opt = IPV6_PMTUDISC_DO; - ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_MTU_DISCOVER, - (char *) &opt, sizeof(opt)); - if (ret < 0) { - _debug("setsockopt failed"); - goto error; - } /* We want receive timestamps. */ opt = 1; From f334430316e7fd37c4821ebec627e27714bb5d76 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 27 Sep 2018 15:13:09 +0100 Subject: [PATCH 1402/1762] rxrpc: Fix error distribution Fix error distribution by immediately delivering the errors to all the affected calls rather than deferring them to a worker thread. The problem with the latter is that retries and things can happen in the meantime when we want to stop that sooner. To this end: (1) Stop the error distributor from removing calls from the error_targets list so that peer->lock isn't needed to synchronise against other adds and removals. (2) Require the peer's error_targets list to be accessed with RCU, thereby avoiding the need to take peer->lock over distribution. (3) Don't attempt to affect a call's state if it is already marked complete. Signed-off-by: David Howells --- include/trace/events/rxrpc.h | 4 +--- net/rxrpc/ar-internal.h | 5 ---- net/rxrpc/call_object.c | 2 +- net/rxrpc/conn_client.c | 4 ++-- net/rxrpc/conn_object.c | 2 +- net/rxrpc/peer_event.c | 46 +++++++++--------------------------- net/rxrpc/peer_object.c | 17 ------------- 7 files changed, 16 insertions(+), 64 deletions(-) diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h index 196587b8f204..837393fa897b 100644 --- a/include/trace/events/rxrpc.h +++ b/include/trace/events/rxrpc.h @@ -56,7 +56,6 @@ enum rxrpc_peer_trace { rxrpc_peer_new, rxrpc_peer_processing, rxrpc_peer_put, - rxrpc_peer_queued_error, }; enum rxrpc_conn_trace { @@ -257,8 +256,7 @@ enum rxrpc_tx_point { EM(rxrpc_peer_got, "GOT") \ EM(rxrpc_peer_new, "NEW") \ EM(rxrpc_peer_processing, "PRO") \ - EM(rxrpc_peer_put, "PUT") \ - E_(rxrpc_peer_queued_error, "QER") + E_(rxrpc_peer_put, "PUT") #define rxrpc_conn_traces \ EM(rxrpc_conn_got, "GOT") \ diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h index c72686193d83..ef9554131434 100644 --- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -288,7 +288,6 @@ struct rxrpc_peer { struct hlist_node hash_link; struct rxrpc_local *local; struct hlist_head error_targets; /* targets for net error distribution */ - struct work_struct error_distributor; struct rb_root service_conns; /* Service connections */ struct list_head keepalive_link; /* Link in net->peer_keepalive[] */ time64_t last_tx_at; /* Last time packet sent here */ @@ -299,8 +298,6 @@ struct rxrpc_peer { unsigned int maxdata; /* data size (MTU - hdrsize) */ unsigned short hdrsize; /* header size (IP + UDP + RxRPC) */ int debug_id; /* debug ID for printks */ - int error_report; /* Net (+0) or local (+1000000) to distribute */ -#define RXRPC_LOCAL_ERROR_OFFSET 1000000 struct sockaddr_rxrpc srx; /* remote address */ /* calculated RTT cache */ @@ -1039,7 +1036,6 @@ void rxrpc_send_keepalive(struct rxrpc_peer *); * peer_event.c */ void rxrpc_error_report(struct sock *); -void rxrpc_peer_error_distributor(struct work_struct *); void rxrpc_peer_add_rtt(struct rxrpc_call *, enum rxrpc_rtt_rx_trace, rxrpc_serial_t, rxrpc_serial_t, ktime_t, ktime_t); void rxrpc_peer_keepalive_worker(struct work_struct *); @@ -1057,7 +1053,6 @@ void rxrpc_destroy_all_peers(struct rxrpc_net *); struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *); struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *); void rxrpc_put_peer(struct rxrpc_peer *); -void __rxrpc_queue_peer_error(struct rxrpc_peer *); /* * proc.c diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c index 9486293fef5c..799f75b6900d 100644 --- a/net/rxrpc/call_object.c +++ b/net/rxrpc/call_object.c @@ -400,7 +400,7 @@ void rxrpc_incoming_call(struct rxrpc_sock *rx, rcu_assign_pointer(conn->channels[chan].call, call); spin_lock(&conn->params.peer->lock); - hlist_add_head(&call->error_link, &conn->params.peer->error_targets); + hlist_add_head_rcu(&call->error_link, &conn->params.peer->error_targets); spin_unlock(&conn->params.peer->lock); _net("CALL incoming %d on CONN %d", call->debug_id, call->conn->debug_id); diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c index f8f37188a932..8acf74fe24c0 100644 --- a/net/rxrpc/conn_client.c +++ b/net/rxrpc/conn_client.c @@ -710,8 +710,8 @@ int rxrpc_connect_call(struct rxrpc_call *call, } spin_lock_bh(&call->conn->params.peer->lock); - hlist_add_head(&call->error_link, - &call->conn->params.peer->error_targets); + hlist_add_head_rcu(&call->error_link, + &call->conn->params.peer->error_targets); spin_unlock_bh(&call->conn->params.peer->lock); out: diff --git a/net/rxrpc/conn_object.c b/net/rxrpc/conn_object.c index b4438f98dc5c..885dae829f4a 100644 --- a/net/rxrpc/conn_object.c +++ b/net/rxrpc/conn_object.c @@ -216,7 +216,7 @@ void rxrpc_disconnect_call(struct rxrpc_call *call) call->peer->cong_cwnd = call->cong_cwnd; spin_lock_bh(&conn->params.peer->lock); - hlist_del_init(&call->error_link); + hlist_del_rcu(&call->error_link); spin_unlock_bh(&conn->params.peer->lock); if (rxrpc_is_client_call(call)) diff --git a/net/rxrpc/peer_event.c b/net/rxrpc/peer_event.c index 4f9da2f51c69..f3e6fc670da2 100644 --- a/net/rxrpc/peer_event.c +++ b/net/rxrpc/peer_event.c @@ -23,6 +23,8 @@ #include "ar-internal.h" static void rxrpc_store_error(struct rxrpc_peer *, struct sock_exterr_skb *); +static void rxrpc_distribute_error(struct rxrpc_peer *, int, + enum rxrpc_call_completion); /* * Find the peer associated with an ICMP packet. @@ -194,8 +196,6 @@ void rxrpc_error_report(struct sock *sk) rcu_read_unlock(); rxrpc_free_skb(skb, rxrpc_skb_rx_freed); - /* The ref we obtained is passed off to the work item */ - __rxrpc_queue_peer_error(peer); _leave(""); } @@ -205,6 +205,7 @@ void rxrpc_error_report(struct sock *sk) static void rxrpc_store_error(struct rxrpc_peer *peer, struct sock_exterr_skb *serr) { + enum rxrpc_call_completion compl = RXRPC_CALL_NETWORK_ERROR; struct sock_extended_err *ee; int err; @@ -255,7 +256,7 @@ static void rxrpc_store_error(struct rxrpc_peer *peer, case SO_EE_ORIGIN_NONE: case SO_EE_ORIGIN_LOCAL: _proto("Rx Received local error { error=%d }", err); - err += RXRPC_LOCAL_ERROR_OFFSET; + compl = RXRPC_CALL_LOCAL_ERROR; break; case SO_EE_ORIGIN_ICMP6: @@ -264,48 +265,23 @@ static void rxrpc_store_error(struct rxrpc_peer *peer, break; } - peer->error_report = err; + rxrpc_distribute_error(peer, err, compl); } /* - * Distribute an error that occurred on a peer + * Distribute an error that occurred on a peer. */ -void rxrpc_peer_error_distributor(struct work_struct *work) +static void rxrpc_distribute_error(struct rxrpc_peer *peer, int error, + enum rxrpc_call_completion compl) { - struct rxrpc_peer *peer = - container_of(work, struct rxrpc_peer, error_distributor); struct rxrpc_call *call; - enum rxrpc_call_completion compl; - int error; - _enter(""); - - error = READ_ONCE(peer->error_report); - if (error < RXRPC_LOCAL_ERROR_OFFSET) { - compl = RXRPC_CALL_NETWORK_ERROR; - } else { - compl = RXRPC_CALL_LOCAL_ERROR; - error -= RXRPC_LOCAL_ERROR_OFFSET; - } - - _debug("ISSUE ERROR %s %d", rxrpc_call_completions[compl], error); - - spin_lock_bh(&peer->lock); - - while (!hlist_empty(&peer->error_targets)) { - call = hlist_entry(peer->error_targets.first, - struct rxrpc_call, error_link); - hlist_del_init(&call->error_link); + hlist_for_each_entry_rcu(call, &peer->error_targets, error_link) { rxrpc_see_call(call); - - if (rxrpc_set_call_completion(call, compl, 0, -error)) + if (call->state < RXRPC_CALL_COMPLETE && + rxrpc_set_call_completion(call, compl, 0, -error)) rxrpc_notify_socket(call); } - - spin_unlock_bh(&peer->lock); - - rxrpc_put_peer(peer); - _leave(""); } /* diff --git a/net/rxrpc/peer_object.c b/net/rxrpc/peer_object.c index 70083e8fb6e5..01a9febfa367 100644 --- a/net/rxrpc/peer_object.c +++ b/net/rxrpc/peer_object.c @@ -220,8 +220,6 @@ struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *local, gfp_t gfp) atomic_set(&peer->usage, 1); peer->local = local; INIT_HLIST_HEAD(&peer->error_targets); - INIT_WORK(&peer->error_distributor, - &rxrpc_peer_error_distributor); peer->service_conns = RB_ROOT; seqlock_init(&peer->service_conn_lock); spin_lock_init(&peer->lock); @@ -402,21 +400,6 @@ struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *peer) return peer; } -/* - * Queue a peer record. This passes the caller's ref to the workqueue. - */ -void __rxrpc_queue_peer_error(struct rxrpc_peer *peer) -{ - const void *here = __builtin_return_address(0); - int n; - - n = atomic_read(&peer->usage); - if (rxrpc_queue_work(&peer->error_distributor)) - trace_rxrpc_peer(peer, rxrpc_peer_queued_error, n, here); - else - rxrpc_put_peer(peer); -} - /* * Discard a peer record. */ From a13f814a67b12a2f29d1decf4b4f4e700658a517 Mon Sep 17 00:00:00 2001 From: Taehee Yoo Date: Thu, 30 Aug 2018 17:56:52 +0900 Subject: [PATCH 1403/1762] netfilter: nft_set_rbtree: add missing rb_erase() in GC routine The nft_set_gc_batch_check() checks whether gc buffer is full. If gc buffer is full, gc buffer is released by the nft_set_gc_batch_complete() internally. In case of rbtree, the rb_erase() should be called before calling the nft_set_gc_batch_complete(). therefore the rb_erase() should be called before calling the nft_set_gc_batch_check() too. test commands: table ip filter { set set1 { type ipv4_addr; flags interval, timeout; gc-interval 10s; timeout 1s; elements = { 1-2, 3-4, 5-6, ... 10000-10001, } } } %nft -f test.nft splat looks like: [ 430.273885] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 430.282158] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 430.283116] CPU: 1 PID: 190 Comm: kworker/1:2 Tainted: G B 4.18.0+ #7 [ 430.283116] Workqueue: events_power_efficient nft_rbtree_gc [nf_tables_set] [ 430.313559] RIP: 0010:rb_next+0x81/0x130 [ 430.313559] Code: 08 49 bd 00 00 00 00 00 fc ff df 48 bb 00 00 00 00 00 fc ff df 48 85 c0 75 05 eb 58 48 89 d4 [ 430.313559] RSP: 0018:ffff88010cdb7680 EFLAGS: 00010207 [ 430.313559] RAX: 0000000000b84854 RBX: dffffc0000000000 RCX: ffffffff83f01973 [ 430.313559] RDX: 000000000017090c RSI: 0000000000000008 RDI: 0000000000b84864 [ 430.313559] RBP: ffff8801060d4588 R08: fffffbfff09bc349 R09: fffffbfff09bc349 [ 430.313559] R10: 0000000000000001 R11: fffffbfff09bc348 R12: ffff880100f081a8 [ 430.313559] R13: dffffc0000000000 R14: ffff880100ff8688 R15: dffffc0000000000 [ 430.313559] FS: 0000000000000000(0000) GS:ffff88011b400000(0000) knlGS:0000000000000000 [ 430.313559] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 430.313559] CR2: 0000000001551008 CR3: 000000005dc16000 CR4: 00000000001006e0 [ 430.313559] Call Trace: [ 430.313559] nft_rbtree_gc+0x112/0x5c0 [nf_tables_set] [ 430.313559] process_one_work+0xc13/0x1ec0 [ 430.313559] ? _raw_spin_unlock_irq+0x29/0x40 [ 430.313559] ? pwq_dec_nr_in_flight+0x3c0/0x3c0 [ 430.313559] ? set_load_weight+0x270/0x270 [ 430.313559] ? __switch_to_asm+0x34/0x70 [ 430.313559] ? __switch_to_asm+0x40/0x70 [ 430.313559] ? __switch_to_asm+0x34/0x70 [ 430.313559] ? __switch_to_asm+0x34/0x70 [ 430.313559] ? __switch_to_asm+0x40/0x70 [ 430.313559] ? __switch_to_asm+0x34/0x70 [ 430.313559] ? __switch_to_asm+0x40/0x70 [ 430.313559] ? __switch_to_asm+0x34/0x70 [ 430.313559] ? __switch_to_asm+0x34/0x70 [ 430.313559] ? __switch_to_asm+0x40/0x70 [ 430.313559] ? __switch_to_asm+0x34/0x70 [ 430.313559] ? __schedule+0x6d3/0x1f50 [ 430.313559] ? find_held_lock+0x39/0x1c0 [ 430.313559] ? __sched_text_start+0x8/0x8 [ 430.313559] ? cyc2ns_read_end+0x10/0x10 [ 430.313559] ? save_trace+0x300/0x300 [ 430.313559] ? sched_clock_local+0xd4/0x140 [ 430.313559] ? find_held_lock+0x39/0x1c0 [ 430.313559] ? worker_thread+0x353/0x1120 [ 430.313559] ? worker_thread+0x353/0x1120 [ 430.313559] ? lock_contended+0xe70/0xe70 [ 430.313559] ? __lock_acquire+0x4500/0x4500 [ 430.535635] ? do_raw_spin_unlock+0xa5/0x330 [ 430.535635] ? do_raw_spin_trylock+0x101/0x1a0 [ 430.535635] ? do_raw_spin_lock+0x1f0/0x1f0 [ 430.535635] ? _raw_spin_lock_irq+0x10/0x70 [ 430.535635] worker_thread+0x15d/0x1120 [ ... ] Fixes: 8d8540c4f5e0 ("netfilter: nft_set_rbtree: add timeout support") Signed-off-by: Taehee Yoo Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nft_set_rbtree.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/net/netfilter/nft_set_rbtree.c b/net/netfilter/nft_set_rbtree.c index 55e2d9215c0d..0e5ec126f6ad 100644 --- a/net/netfilter/nft_set_rbtree.c +++ b/net/netfilter/nft_set_rbtree.c @@ -355,12 +355,11 @@ cont: static void nft_rbtree_gc(struct work_struct *work) { + struct nft_rbtree_elem *rbe, *rbe_end = NULL, *rbe_prev = NULL; struct nft_set_gc_batch *gcb = NULL; - struct rb_node *node, *prev = NULL; - struct nft_rbtree_elem *rbe; struct nft_rbtree *priv; + struct rb_node *node; struct nft_set *set; - int i; priv = container_of(work, struct nft_rbtree, gc_work.work); set = nft_set_container_of(priv); @@ -371,7 +370,7 @@ static void nft_rbtree_gc(struct work_struct *work) rbe = rb_entry(node, struct nft_rbtree_elem, node); if (nft_rbtree_interval_end(rbe)) { - prev = node; + rbe_end = rbe; continue; } if (!nft_set_elem_expired(&rbe->ext)) @@ -379,29 +378,30 @@ static void nft_rbtree_gc(struct work_struct *work) if (nft_set_elem_mark_busy(&rbe->ext)) continue; + if (rbe_prev) { + rb_erase(&rbe_prev->node, &priv->root); + rbe_prev = NULL; + } gcb = nft_set_gc_batch_check(set, gcb, GFP_ATOMIC); if (!gcb) break; atomic_dec(&set->nelems); nft_set_gc_batch_add(gcb, rbe); + rbe_prev = rbe; - if (prev) { - rbe = rb_entry(prev, struct nft_rbtree_elem, node); + if (rbe_end) { atomic_dec(&set->nelems); - nft_set_gc_batch_add(gcb, rbe); - prev = NULL; + nft_set_gc_batch_add(gcb, rbe_end); + rb_erase(&rbe_end->node, &priv->root); + rbe_end = NULL; } node = rb_next(node); if (!node) break; } - if (gcb) { - for (i = 0; i < gcb->head.cnt; i++) { - rbe = gcb->elems[i]; - rb_erase(&rbe->node, &priv->root); - } - } + if (rbe_prev) + rb_erase(&rbe_prev->node, &priv->root); write_seqcount_end(&priv->count); write_unlock_bh(&priv->lock); From 421c119f558761556afca6a62ad183bc2d8659e0 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Mon, 24 Sep 2018 14:10:04 +0200 Subject: [PATCH 1404/1762] netfilter: avoid erronous array bounds warning Unfortunately some versions of gcc emit following warning: $ make net/xfrm/xfrm_output.o linux/compiler.h:252:20: warning: array subscript is above array bounds [-Warray-bounds] hook_head = rcu_dereference(net->nf.hooks_arp[hook]); ^~~~~~~~~~~~~~~~~~~~~ xfrm_output_resume passes skb_dst(skb)->ops->family as its 'pf' arg so compiler can't know that we'll never access hooks_arp[]. (NFPROTO_IPV4 or NFPROTO_IPV6 are only possible cases). Avoid this by adding an explicit WARN_ON_ONCE() check. This patch has no effect if the family is a compile-time constant as gcc will remove the switch() construct entirely. Reported-by: David Ahern Signed-off-by: Florian Westphal Reviewed-by: David Ahern Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h index 07efffd0c759..bbe99d2b28b4 100644 --- a/include/linux/netfilter.h +++ b/include/linux/netfilter.h @@ -215,6 +215,8 @@ static inline int nf_hook(u_int8_t pf, unsigned int hook, struct net *net, break; case NFPROTO_ARP: #ifdef CONFIG_NETFILTER_FAMILY_ARP + if (WARN_ON_ONCE(hook >= ARRAY_SIZE(net->nf.hooks_arp))) + break; hook_head = rcu_dereference(net->nf.hooks_arp[hook]); #endif break; From 40e4f26e6a14fc1496eabb8b0004a547303114e6 Mon Sep 17 00:00:00 2001 From: Flavio Leitner Date: Thu, 27 Sep 2018 19:36:28 -0300 Subject: [PATCH 1405/1762] netfilter: xt_socket: check sk before checking for netns. Only check for the network namespace if the socket is available. Fixes: f564650106a6 ("netfilter: check if the socket netns is correct.") Reported-by: Guenter Roeck Tested-by: Guenter Roeck Signed-off-by: Flavio Leitner Signed-off-by: Pablo Neira Ayuso --- net/netfilter/xt_socket.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/netfilter/xt_socket.c b/net/netfilter/xt_socket.c index 0472f3472842..ada144e5645b 100644 --- a/net/netfilter/xt_socket.c +++ b/net/netfilter/xt_socket.c @@ -56,7 +56,7 @@ socket_match(const struct sk_buff *skb, struct xt_action_param *par, struct sk_buff *pskb = (struct sk_buff *)skb; struct sock *sk = skb->sk; - if (!net_eq(xt_net(par), sock_net(sk))) + if (sk && !net_eq(xt_net(par), sock_net(sk))) sk = NULL; if (!sk) @@ -117,7 +117,7 @@ socket_mt6_v1_v2_v3(const struct sk_buff *skb, struct xt_action_param *par) struct sk_buff *pskb = (struct sk_buff *)skb; struct sock *sk = skb->sk; - if (!net_eq(xt_net(par), sock_net(sk))) + if (sk && !net_eq(xt_net(par), sock_net(sk))) sk = NULL; if (!sk) From 4288ea006c73e37c2a4f60dfaef20dd167b8df31 Mon Sep 17 00:00:00 2001 From: Roman Gushchin Date: Fri, 28 Sep 2018 14:33:21 +0100 Subject: [PATCH 1406/1762] bpf: harden flags check in cgroup_storage_update_elem() cgroup_storage_update_elem() shouldn't accept any flags argument values except BPF_ANY and BPF_EXIST to guarantee the backward compatibility, had a new flag value been added. Fixes: de9cbbaadba5 ("bpf: introduce cgroup storage maps") Signed-off-by: Roman Gushchin Reported-by: Daniel Borkmann Cc: Alexei Starovoitov Signed-off-by: Daniel Borkmann --- kernel/bpf/local_storage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/bpf/local_storage.c b/kernel/bpf/local_storage.c index 22ad967d1e5f..94126cbffc88 100644 --- a/kernel/bpf/local_storage.c +++ b/kernel/bpf/local_storage.c @@ -129,7 +129,7 @@ static int cgroup_storage_update_elem(struct bpf_map *map, void *_key, struct bpf_cgroup_storage *storage; struct bpf_storage_buffer *new; - if (flags & BPF_NOEXIST) + if (flags != BPF_ANY && flags != BPF_EXIST) return -EINVAL; storage = cgroup_storage_lookup((struct bpf_cgroup_storage_map *)map, From 15c206887603a452f13fbfde2db0f8830d37028c Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Fri, 28 Sep 2018 09:40:17 -0600 Subject: [PATCH 1407/1762] Revert "xen/blkfront: When purging persistent grants, keep them in the buffer" Fix didn't work for all cases, reverting to add a (hopefully) better fix. This reverts commit f151ba989d149bbdfc90e5405724bbea094f9b17. Signed-off-by: Jens Axboe --- drivers/block/xen-blkfront.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 3b441fe69c0d..a71d817e900d 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -2667,9 +2667,11 @@ static void purge_persistent_grants(struct blkfront_info *info) gnttab_query_foreign_access(gnt_list_entry->gref)) continue; + list_del(&gnt_list_entry->node); gnttab_end_foreign_access(gnt_list_entry->gref, 0, 0UL); - gnt_list_entry->gref = GRANT_INVALID_REF; rinfo->persistent_gnts_c--; + __free_page(gnt_list_entry->page); + kfree(gnt_list_entry); } spin_unlock_irqrestore(&rinfo->ring_lock, flags); From 6c7678674014b4552caf0e5aa0ca34078a377482 Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Fri, 28 Sep 2018 09:28:27 +0200 Subject: [PATCH 1408/1762] xen/blkfront: correct purging of persistent grants Commit a46b53672b2c2e3770b38a4abf90d16364d2584b ("xen/blkfront: cleanup stale persistent grants") introduced a regression as purged persistent grants were not pu into the list of free grants again. Correct that. Reviewed-by: Boris Ostrovsky Signed-off-by: Juergen Gross Signed-off-by: Jens Axboe --- drivers/block/xen-blkfront.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index a71d817e900d..429d20131c7e 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -2670,8 +2670,8 @@ static void purge_persistent_grants(struct blkfront_info *info) list_del(&gnt_list_entry->node); gnttab_end_foreign_access(gnt_list_entry->gref, 0, 0UL); rinfo->persistent_gnts_c--; - __free_page(gnt_list_entry->page); - kfree(gnt_list_entry); + gnt_list_entry->gref = GRANT_INVALID_REF; + list_add_tail(&gnt_list_entry->node, &rinfo->grants); } spin_unlock_irqrestore(&rinfo->ring_lock, flags); From 1b09d9c232cdaea59fb50ac437d3921ed1f1eafb Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Fri, 28 Sep 2018 14:20:40 +0200 Subject: [PATCH 1409/1762] mmc: slot-gpio: Fix debounce time to use miliseconds again The debounce value passed to mmc_gpiod_request_cd() function is in microseconds, but msecs_to_jiffies() requires the value to be in miliseconds to properly calculate the delay, so adjust the value stored in cd_debounce_delay_ms context entry. Fixes: 1d71926bbd59 ("mmc: core: Fix debounce time to use microseconds") Fixes: bfd694d5e21c ("mmc: core: Add tunable delay before detecting card after card is inserted") Cc: stable@vger.kernel.org # v4.18+ Signed-off-by: Marek Szyprowski Reviewed-by: Linus Walleij Signed-off-by: Ulf Hansson --- drivers/mmc/core/slot-gpio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/core/slot-gpio.c b/drivers/mmc/core/slot-gpio.c index 2a833686784b..86803a3a04dc 100644 --- a/drivers/mmc/core/slot-gpio.c +++ b/drivers/mmc/core/slot-gpio.c @@ -271,7 +271,7 @@ int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id, if (debounce) { ret = gpiod_set_debounce(desc, debounce); if (ret < 0) - ctx->cd_debounce_delay_ms = debounce; + ctx->cd_debounce_delay_ms = debounce / 1000; } if (gpio_invert) From 065a2cdcbdf8eb9aefb66e1a24b2d684b8b8852b Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Wed, 26 Sep 2018 18:07:09 +0200 Subject: [PATCH 1410/1762] s390: qeth_core_mpc: Use ARRAY_SIZE instead of reimplementing its function Use the common code ARRAY_SIZE macro instead of a private implementation. Reviewed-by: Jean Delvare Signed-off-by: zhong jiang Signed-off-by: Martin Schwidefsky Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller --- drivers/s390/net/qeth_core_mpc.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/s390/net/qeth_core_mpc.c b/drivers/s390/net/qeth_core_mpc.c index 5bcb8dafc3ee..e8263ded0af0 100644 --- a/drivers/s390/net/qeth_core_mpc.c +++ b/drivers/s390/net/qeth_core_mpc.c @@ -222,8 +222,7 @@ static struct ipa_rc_msg qeth_ipa_rc_msg[] = { char *qeth_get_ipa_msg(enum qeth_ipa_return_codes rc) { int x = 0; - qeth_ipa_rc_msg[sizeof(qeth_ipa_rc_msg) / - sizeof(struct ipa_rc_msg) - 1].rc = rc; + qeth_ipa_rc_msg[ARRAY_SIZE(qeth_ipa_rc_msg) - 1].rc = rc; while (qeth_ipa_rc_msg[x].rc != rc) x++; return qeth_ipa_rc_msg[x].msg; @@ -270,9 +269,7 @@ static struct ipa_cmd_names qeth_ipa_cmd_names[] = { char *qeth_get_ipa_cmd_name(enum qeth_ipa_cmds cmd) { int x = 0; - qeth_ipa_cmd_names[ - sizeof(qeth_ipa_cmd_names) / - sizeof(struct ipa_cmd_names)-1].cmd = cmd; + qeth_ipa_cmd_names[ARRAY_SIZE(qeth_ipa_cmd_names) - 1].cmd = cmd; while (qeth_ipa_cmd_names[x].cmd != cmd) x++; return qeth_ipa_cmd_names[x].name; From 048a7f8b4ec085d5c56ad4a3bf450389a4aed5f9 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Wed, 26 Sep 2018 18:07:10 +0200 Subject: [PATCH 1411/1762] s390: qeth: Fix potential array overrun in cmd/rc lookup Functions qeth_get_ipa_msg and qeth_get_ipa_cmd_name are modifying the last member of global arrays without any locking that I can see. If two instances of either function are running at the same time, it could cause a race ultimately leading to an array overrun (the contents of the last entry of the array is the only guarantee that the loop will ever stop). Performing the lookups without modifying the arrays is admittedly slower (two comparisons per iteration instead of one) but these are operations which are rare (should only be needed in error cases or when debugging, not during successful operation) and it seems still less costly than introducing a mutex to protect the arrays in question. As a side bonus, it allows us to declare both arrays as const data. Signed-off-by: Jean Delvare Cc: Julian Wiedmann Cc: Ursula Braun Cc: Martin Schwidefsky Cc: Heiko Carstens Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller --- drivers/s390/net/qeth_core_main.c | 2 +- drivers/s390/net/qeth_core_mpc.c | 30 ++++++++++++++++-------------- drivers/s390/net/qeth_core_mpc.h | 4 ++-- 3 files changed, 19 insertions(+), 17 deletions(-) diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index de8282420f96..ffce6f39828a 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -610,7 +610,7 @@ static void qeth_put_reply(struct qeth_reply *reply) static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc, struct qeth_card *card) { - char *ipa_name; + const char *ipa_name; int com = cmd->hdr.command; ipa_name = qeth_get_ipa_cmd_name(com); if (rc) diff --git a/drivers/s390/net/qeth_core_mpc.c b/drivers/s390/net/qeth_core_mpc.c index e8263ded0af0..e891c0b52f4c 100644 --- a/drivers/s390/net/qeth_core_mpc.c +++ b/drivers/s390/net/qeth_core_mpc.c @@ -148,10 +148,10 @@ EXPORT_SYMBOL_GPL(IPA_PDU_HEADER); struct ipa_rc_msg { enum qeth_ipa_return_codes rc; - char *msg; + const char *msg; }; -static struct ipa_rc_msg qeth_ipa_rc_msg[] = { +static const struct ipa_rc_msg qeth_ipa_rc_msg[] = { {IPA_RC_SUCCESS, "success"}, {IPA_RC_NOTSUPP, "Command not supported"}, {IPA_RC_IP_TABLE_FULL, "Add Addr IP Table Full - ipv6"}, @@ -219,22 +219,23 @@ static struct ipa_rc_msg qeth_ipa_rc_msg[] = { -char *qeth_get_ipa_msg(enum qeth_ipa_return_codes rc) +const char *qeth_get_ipa_msg(enum qeth_ipa_return_codes rc) { - int x = 0; - qeth_ipa_rc_msg[ARRAY_SIZE(qeth_ipa_rc_msg) - 1].rc = rc; - while (qeth_ipa_rc_msg[x].rc != rc) - x++; + int x; + + for (x = 0; x < ARRAY_SIZE(qeth_ipa_rc_msg) - 1; x++) + if (qeth_ipa_rc_msg[x].rc == rc) + return qeth_ipa_rc_msg[x].msg; return qeth_ipa_rc_msg[x].msg; } struct ipa_cmd_names { enum qeth_ipa_cmds cmd; - char *name; + const char *name; }; -static struct ipa_cmd_names qeth_ipa_cmd_names[] = { +static const struct ipa_cmd_names qeth_ipa_cmd_names[] = { {IPA_CMD_STARTLAN, "startlan"}, {IPA_CMD_STOPLAN, "stoplan"}, {IPA_CMD_SETVMAC, "setvmac"}, @@ -266,11 +267,12 @@ static struct ipa_cmd_names qeth_ipa_cmd_names[] = { {IPA_CMD_UNKNOWN, "unknown"}, }; -char *qeth_get_ipa_cmd_name(enum qeth_ipa_cmds cmd) +const char *qeth_get_ipa_cmd_name(enum qeth_ipa_cmds cmd) { - int x = 0; - qeth_ipa_cmd_names[ARRAY_SIZE(qeth_ipa_cmd_names) - 1].cmd = cmd; - while (qeth_ipa_cmd_names[x].cmd != cmd) - x++; + int x; + + for (x = 0; x < ARRAY_SIZE(qeth_ipa_cmd_names) - 1; x++) + if (qeth_ipa_cmd_names[x].cmd == cmd) + return qeth_ipa_cmd_names[x].name; return qeth_ipa_cmd_names[x].name; } diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h index aa8b9196b089..aa5de1fe01e1 100644 --- a/drivers/s390/net/qeth_core_mpc.h +++ b/drivers/s390/net/qeth_core_mpc.h @@ -797,8 +797,8 @@ enum qeth_ipa_arp_return_codes { QETH_IPA_ARP_RC_Q_NO_DATA = 0x0008, }; -extern char *qeth_get_ipa_msg(enum qeth_ipa_return_codes rc); -extern char *qeth_get_ipa_cmd_name(enum qeth_ipa_cmds cmd); +extern const char *qeth_get_ipa_msg(enum qeth_ipa_return_codes rc); +extern const char *qeth_get_ipa_cmd_name(enum qeth_ipa_cmds cmd); #define QETH_SETASS_BASE_LEN (sizeof(struct qeth_ipacmd_hdr) + \ sizeof(struct qeth_ipacmd_setassparms_hdr)) From ce7d17d6c607aa0d898f4712e75e27d319816b3b Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Thu, 27 Sep 2018 10:47:01 +0200 Subject: [PATCH 1412/1762] MAINTAINERS: change bridge maintainers I haven't been doing reviews only but not active development on bridge code for several years. Roopa and Nikolay have been doing most of the new features and have agreed to take over as new co-maintainers. Signed-off-by: Stephen Hemminger Acked-by: Roopa Prabhu Acked-by: Nikolay Aleksandrov --- MAINTAINERS | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 02a39617ec82..b0ca9e214ef0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5470,7 +5470,8 @@ S: Odd Fixes F: drivers/net/ethernet/agere/ ETHERNET BRIDGE -M: Stephen Hemminger +M: Roopa Prabhu +M: Nikolay Aleksandrov L: bridge@lists.linux-foundation.org (moderated for non-subscribers) L: netdev@vger.kernel.org W: http://www.linuxfoundation.org/en/Net:Bridge From cb973127a793c5ade8102aa4ab7bb5e4b1e64190 Mon Sep 17 00:00:00 2001 From: Sudarsana Reddy Kalluru Date: Wed, 26 Sep 2018 21:57:03 -0700 Subject: [PATCH 1413/1762] Update maintainers for bnx2/bnx2x/qlge/qlcnic drivers. Signed-off-by: Sudarsana Reddy Kalluru Signed-off-by: Ameen Rahman Signed-off-by: David S. Miller --- MAINTAINERS | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index b0ca9e214ef0..dcb0191c4f54 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2956,7 +2956,6 @@ F: include/linux/bcm963xx_tag.h BROADCOM BNX2 GIGABIT ETHERNET DRIVER M: Rasesh Mody -M: Harish Patil M: Dept-GELinuxNICDev@cavium.com L: netdev@vger.kernel.org S: Supported @@ -2977,6 +2976,7 @@ F: drivers/scsi/bnx2i/ BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER M: Ariel Elior +M: Sudarsana Kalluru M: everest-linux-l2@cavium.com L: netdev@vger.kernel.org S: Supported @@ -11974,7 +11974,7 @@ F: Documentation/scsi/LICENSE.qla4xxx F: drivers/scsi/qla4xxx/ QLOGIC QLCNIC (1/10)Gb ETHERNET DRIVER -M: Harish Patil +M: Shahed Shaikh M: Manish Chopra M: Dept-GELinuxNICDev@cavium.com L: netdev@vger.kernel.org @@ -11982,7 +11982,6 @@ S: Supported F: drivers/net/ethernet/qlogic/qlcnic/ QLOGIC QLGE 10Gb ETHERNET DRIVER -M: Harish Patil M: Manish Chopra M: Dept-GELinuxNICDev@cavium.com L: netdev@vger.kernel.org From 5f672090e44f4951084c5e1d6b0668a5fc422af8 Mon Sep 17 00:00:00 2001 From: Sudarsana Reddy Kalluru Date: Thu, 27 Sep 2018 04:12:10 -0700 Subject: [PATCH 1414/1762] qed: Fix shmem structure inconsistency between driver and the mfw. The structure shared between driver and the management FW (mfw) differ in sizes. This would lead to issues when driver try to access the structure members which are not-aligned with the mfw copy e.g., data_ptr usage in the case of mfw_tlv request. Align the driver structure with mfw copy, add reserved field(s) to driver structure for the members not used by the driver. Fixes: dd006921d67f ("qed: Add MFW interfaces for TLV request support.) Signed-off-by: Sudarsana Reddy Kalluru Signed-off-by: Michal Kalderon --- drivers/net/ethernet/qlogic/qed/qed_hsi.h | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/qlogic/qed/qed_hsi.h b/drivers/net/ethernet/qlogic/qed/qed_hsi.h index 9b3ef00e5782..a71382687ef2 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_hsi.h +++ b/drivers/net/ethernet/qlogic/qed/qed_hsi.h @@ -11987,6 +11987,7 @@ struct public_global { u32 running_bundle_id; s32 external_temperature; u32 mdump_reason; + u64 reserved; u32 data_ptr; u32 data_size; }; From c24498c6827b71f80fecc9fb1b70a792053d41a9 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 27 Sep 2018 09:31:51 -0700 Subject: [PATCH 1415/1762] netpoll: do not test NAPI_STATE_SCHED in poll_one_napi() Since we do no longer require NAPI drivers to provide an ndo_poll_controller(), napi_schedule() has not been done before poll_one_napi() invocation. So testing NAPI_STATE_SCHED is likely to cause early returns. While we are at it, remove outdated comment. Note to future bisections : This change might surface prior bugs in drivers. See commit 73f21c653f93 ("bnxt_en: Fix TX timeout during netpoll.") for one occurrence. Fixes: ac3d9dd034e5 ("netpoll: make ndo_poll_controller() optional") Signed-off-by: Eric Dumazet Tested-by: Song Liu Cc: Michael Chan Signed-off-by: David S. Miller --- net/core/netpoll.c | 20 +------------------- 1 file changed, 1 insertion(+), 19 deletions(-) diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 3219a2932463..3ae899805f8b 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -135,27 +135,9 @@ static void queue_process(struct work_struct *work) } } -/* - * Check whether delayed processing was scheduled for our NIC. If so, - * we attempt to grab the poll lock and use ->poll() to pump the card. - * If this fails, either we've recursed in ->poll() or it's already - * running on another CPU. - * - * Note: we don't mask interrupts with this lock because we're using - * trylock here and interrupts are already disabled in the softirq - * case. Further, we test the poll_owner to avoid recursion on UP - * systems where the lock doesn't exist. - */ static void poll_one_napi(struct napi_struct *napi) { - int work = 0; - - /* net_rx_action's ->poll() invocations and our's are - * synchronized by this test which is only made while - * holding the napi->poll_lock. - */ - if (!test_bit(NAPI_STATE_SCHED, &napi->state)) - return; + int work; /* If we set this bit but see that it has already been set, * that indicates that napi has been disabled and we need From e71fb423e0dea3c9f98f0101e965426edfe849cd Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 27 Sep 2018 09:31:52 -0700 Subject: [PATCH 1416/1762] hinic: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. hinic uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Note that hinic_netpoll() was incorrectly scheduling NAPI on both RX and TX queues. Signed-off-by: Eric Dumazet Cc: Aviad Krawczyk Signed-off-by: David S. Miller --- .../net/ethernet/huawei/hinic/hinic_main.c | 20 ------------------- 1 file changed, 20 deletions(-) diff --git a/drivers/net/ethernet/huawei/hinic/hinic_main.c b/drivers/net/ethernet/huawei/hinic/hinic_main.c index 09e9da10b786..4a8f82938ed5 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_main.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_main.c @@ -789,23 +789,6 @@ static void hinic_get_stats64(struct net_device *netdev, stats->tx_errors = nic_tx_stats->tx_dropped; } -#ifdef CONFIG_NET_POLL_CONTROLLER -static void hinic_netpoll(struct net_device *netdev) -{ - struct hinic_dev *nic_dev = netdev_priv(netdev); - int i, num_qps; - - num_qps = hinic_hwdev_num_qps(nic_dev->hwdev); - for (i = 0; i < num_qps; i++) { - struct hinic_txq *txq = &nic_dev->txqs[i]; - struct hinic_rxq *rxq = &nic_dev->rxqs[i]; - - napi_schedule(&txq->napi); - napi_schedule(&rxq->napi); - } -} -#endif - static const struct net_device_ops hinic_netdev_ops = { .ndo_open = hinic_open, .ndo_stop = hinic_close, @@ -818,9 +801,6 @@ static const struct net_device_ops hinic_netdev_ops = { .ndo_start_xmit = hinic_xmit_frame, .ndo_tx_timeout = hinic_tx_timeout, .ndo_get_stats64 = hinic_get_stats64, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = hinic_netpoll, -#endif }; static void netdev_features_init(struct net_device *netdev) From 226a2dd62c5d789088fcf7804fbe5613887870a5 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 27 Sep 2018 09:31:53 -0700 Subject: [PATCH 1417/1762] ehea: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. ehea uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Douglas Miller Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/ehea/ehea_main.c | 14 -------------- 1 file changed, 14 deletions(-) diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c index ba580bfae512..03f64f40b2a3 100644 --- a/drivers/net/ethernet/ibm/ehea/ehea_main.c +++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c @@ -921,17 +921,6 @@ static int ehea_poll(struct napi_struct *napi, int budget) return rx; } -#ifdef CONFIG_NET_POLL_CONTROLLER -static void ehea_netpoll(struct net_device *dev) -{ - struct ehea_port *port = netdev_priv(dev); - int i; - - for (i = 0; i < port->num_def_qps; i++) - napi_schedule(&port->port_res[i].napi); -} -#endif - static irqreturn_t ehea_recv_irq_handler(int irq, void *param) { struct ehea_port_res *pr = param; @@ -2953,9 +2942,6 @@ static const struct net_device_ops ehea_netdev_ops = { .ndo_open = ehea_open, .ndo_stop = ehea_stop, .ndo_start_xmit = ehea_start_xmit, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ehea_netpoll, -#endif .ndo_get_stats64 = ehea_get_stats64, .ndo_set_mac_address = ehea_set_mac_addr, .ndo_validate_addr = eth_validate_addr, From 4bd2c03be707253f1157bd759fdd6971e4f70403 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 27 Sep 2018 09:31:54 -0700 Subject: [PATCH 1418/1762] net: hns: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. hns uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Yisen Zhuang Cc: Salil Mehta Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns/hns_enet.c | 18 ------------------ 1 file changed, 18 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index 5ce23d4b717e..28e907831b0e 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -1503,21 +1503,6 @@ static int hns_nic_do_ioctl(struct net_device *netdev, struct ifreq *ifr, return phy_mii_ioctl(phy_dev, ifr, cmd); } -/* use only for netconsole to poll with the device without interrupt */ -#ifdef CONFIG_NET_POLL_CONTROLLER -static void hns_nic_poll_controller(struct net_device *ndev) -{ - struct hns_nic_priv *priv = netdev_priv(ndev); - unsigned long flags; - int i; - - local_irq_save(flags); - for (i = 0; i < priv->ae_handle->q_num * 2; i++) - napi_schedule(&priv->ring_data[i].napi); - local_irq_restore(flags); -} -#endif - static netdev_tx_t hns_nic_net_xmit(struct sk_buff *skb, struct net_device *ndev) { @@ -1970,9 +1955,6 @@ static const struct net_device_ops hns_nic_netdev_ops = { .ndo_set_features = hns_nic_set_features, .ndo_fix_features = hns_nic_fix_features, .ndo_get_stats64 = hns_nic_get_stats64, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = hns_nic_poll_controller, -#endif .ndo_set_rx_mode = hns_nic_set_rx_mode, .ndo_select_queue = hns_nic_select_queue, }; From 260dd2c3e2aeefbe78065f0737dceae1ceb1196a Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 27 Sep 2018 09:31:55 -0700 Subject: [PATCH 1419/1762] virtio_net: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. virto_net uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: "Michael S. Tsirkin" Cc: Jason Wang Signed-off-by: David S. Miller --- drivers/net/virtio_net.c | 14 -------------- 1 file changed, 14 deletions(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 765920905226..dab504ec5e50 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -1699,17 +1699,6 @@ static void virtnet_stats(struct net_device *dev, tot->rx_frame_errors = dev->stats.rx_frame_errors; } -#ifdef CONFIG_NET_POLL_CONTROLLER -static void virtnet_netpoll(struct net_device *dev) -{ - struct virtnet_info *vi = netdev_priv(dev); - int i; - - for (i = 0; i < vi->curr_queue_pairs; i++) - napi_schedule(&vi->rq[i].napi); -} -#endif - static void virtnet_ack_link_announce(struct virtnet_info *vi) { rtnl_lock(); @@ -2447,9 +2436,6 @@ static const struct net_device_ops virtnet_netdev = { .ndo_get_stats64 = virtnet_stats, .ndo_vlan_rx_add_vid = virtnet_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = virtnet_vlan_rx_kill_vid, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = virtnet_netpoll, -#endif .ndo_bpf = virtnet_xdp, .ndo_xdp_xmit = virtnet_xdp_xmit, .ndo_features_check = passthru_features_check, From 81b059b2187d77b957bf85318dbd4f36d60555e3 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 27 Sep 2018 09:31:56 -0700 Subject: [PATCH 1420/1762] qlcnic: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. qlcnic uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Harish Patil Cc: Manish Chopra Signed-off-by: David S. Miller --- .../net/ethernet/qlogic/qlcnic/qlcnic_main.c | 45 ------------------- 1 file changed, 45 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c index 2d38d1ac2aae..dbd48012224f 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c @@ -59,9 +59,6 @@ static int qlcnic_close(struct net_device *netdev); static void qlcnic_tx_timeout(struct net_device *netdev); static void qlcnic_attach_work(struct work_struct *work); static void qlcnic_fwinit_work(struct work_struct *work); -#ifdef CONFIG_NET_POLL_CONTROLLER -static void qlcnic_poll_controller(struct net_device *netdev); -#endif static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding); static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter); @@ -545,9 +542,6 @@ static const struct net_device_ops qlcnic_netdev_ops = { .ndo_udp_tunnel_add = qlcnic_add_vxlan_port, .ndo_udp_tunnel_del = qlcnic_del_vxlan_port, .ndo_features_check = qlcnic_features_check, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = qlcnic_poll_controller, -#endif #ifdef CONFIG_QLCNIC_SRIOV .ndo_set_vf_mac = qlcnic_sriov_set_vf_mac, .ndo_set_vf_rate = qlcnic_sriov_set_vf_tx_rate, @@ -3200,45 +3194,6 @@ static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data) return IRQ_HANDLED; } -#ifdef CONFIG_NET_POLL_CONTROLLER -static void qlcnic_poll_controller(struct net_device *netdev) -{ - struct qlcnic_adapter *adapter = netdev_priv(netdev); - struct qlcnic_host_sds_ring *sds_ring; - struct qlcnic_recv_context *recv_ctx; - struct qlcnic_host_tx_ring *tx_ring; - int ring; - - if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) - return; - - recv_ctx = adapter->recv_ctx; - - for (ring = 0; ring < adapter->drv_sds_rings; ring++) { - sds_ring = &recv_ctx->sds_rings[ring]; - qlcnic_disable_sds_intr(adapter, sds_ring); - napi_schedule(&sds_ring->napi); - } - - if (adapter->flags & QLCNIC_MSIX_ENABLED) { - /* Only Multi-Tx queue capable devices need to - * schedule NAPI for TX rings - */ - if ((qlcnic_83xx_check(adapter) && - (adapter->flags & QLCNIC_TX_INTR_SHARED)) || - (qlcnic_82xx_check(adapter) && - !qlcnic_check_multi_tx(adapter))) - return; - - for (ring = 0; ring < adapter->drv_tx_rings; ring++) { - tx_ring = &adapter->tx_ring[ring]; - qlcnic_disable_tx_intr(adapter, tx_ring); - napi_schedule(&tx_ring->napi); - } - } -} -#endif - static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding) { From 3548fcf7d877c682c9a5a413c51929739192156d Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 27 Sep 2018 09:31:57 -0700 Subject: [PATCH 1421/1762] qlogic: netxen: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. netxen uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Manish Chopra Cc: Rahul Verma Signed-off-by: David S. Miller --- .../ethernet/qlogic/netxen/netxen_nic_main.c | 23 ------------------- 1 file changed, 23 deletions(-) diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c index 69aa7fc392c5..59c70be22a84 100644 --- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c +++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c @@ -72,9 +72,6 @@ static void netxen_schedule_work(struct netxen_adapter *adapter, work_func_t func, int delay); static void netxen_cancel_fw_work(struct netxen_adapter *adapter); static int netxen_nic_poll(struct napi_struct *napi, int budget); -#ifdef CONFIG_NET_POLL_CONTROLLER -static void netxen_nic_poll_controller(struct net_device *netdev); -#endif static void netxen_create_sysfs_entries(struct netxen_adapter *adapter); static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter); @@ -581,9 +578,6 @@ static const struct net_device_ops netxen_netdev_ops = { .ndo_tx_timeout = netxen_tx_timeout, .ndo_fix_features = netxen_fix_features, .ndo_set_features = netxen_set_features, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = netxen_nic_poll_controller, -#endif }; static inline bool netxen_function_zero(struct pci_dev *pdev) @@ -2402,23 +2396,6 @@ static int netxen_nic_poll(struct napi_struct *napi, int budget) return work_done; } -#ifdef CONFIG_NET_POLL_CONTROLLER -static void netxen_nic_poll_controller(struct net_device *netdev) -{ - int ring; - struct nx_host_sds_ring *sds_ring; - struct netxen_adapter *adapter = netdev_priv(netdev); - struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; - - disable_irq(adapter->irq); - for (ring = 0; ring < adapter->max_sds_rings; ring++) { - sds_ring = &recv_ctx->sds_rings[ring]; - netxen_intr(adapter->irq, sds_ring); - } - enable_irq(adapter->irq); -} -#endif - static int nx_incr_dev_ref_cnt(struct netxen_adapter *adapter) { From 21627982e4fff76a053f4d08d7fb56e532e08d52 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 27 Sep 2018 09:31:58 -0700 Subject: [PATCH 1422/1762] net: ena: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. ena uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Netanel Belgazal Cc: Saeed Bishara Cc: Zorik Machulsky Signed-off-by: David S. Miller --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 22 -------------------- 1 file changed, 22 deletions(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 29b5774dd32d..25621a218f20 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -2185,25 +2185,6 @@ error_drop_packet: return NETDEV_TX_OK; } -#ifdef CONFIG_NET_POLL_CONTROLLER -static void ena_netpoll(struct net_device *netdev) -{ - struct ena_adapter *adapter = netdev_priv(netdev); - int i; - - /* Dont schedule NAPI if the driver is in the middle of reset - * or netdev is down. - */ - - if (!test_bit(ENA_FLAG_DEV_UP, &adapter->flags) || - test_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags)) - return; - - for (i = 0; i < adapter->num_queues; i++) - napi_schedule(&adapter->ena_napi[i].napi); -} -#endif /* CONFIG_NET_POLL_CONTROLLER */ - static u16 ena_select_queue(struct net_device *dev, struct sk_buff *skb, struct net_device *sb_dev, select_queue_fallback_t fallback) @@ -2369,9 +2350,6 @@ static const struct net_device_ops ena_netdev_ops = { .ndo_change_mtu = ena_change_mtu, .ndo_set_mac_address = NULL, .ndo_validate_addr = eth_validate_addr, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ena_netpoll, -#endif /* CONFIG_NET_POLL_CONTROLLER */ }; static int ena_device_validate_params(struct ena_adapter *adapter, From 9447a10ff607debe5e30cc438fb56925a559b9d9 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 27 Sep 2018 09:31:59 -0700 Subject: [PATCH 1423/1762] sfc: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. sfc uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Edward Cree Cc: Bert Kenward Cc: Solarflare linux maintainers Acked-By: Bert Kenward Signed-off-by: David S. Miller --- drivers/net/ethernet/sfc/efx.c | 26 -------------------------- 1 file changed, 26 deletions(-) diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index 330233286e78..3d0dd39c289e 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -2206,29 +2206,6 @@ static void efx_fini_napi(struct efx_nic *efx) efx_fini_napi_channel(channel); } -/************************************************************************** - * - * Kernel netpoll interface - * - *************************************************************************/ - -#ifdef CONFIG_NET_POLL_CONTROLLER - -/* Although in the common case interrupts will be disabled, this is not - * guaranteed. However, all our work happens inside the NAPI callback, - * so no locking is required. - */ -static void efx_netpoll(struct net_device *net_dev) -{ - struct efx_nic *efx = netdev_priv(net_dev); - struct efx_channel *channel; - - efx_for_each_channel(channel, efx) - efx_schedule_channel(channel); -} - -#endif - /************************************************************************** * * Kernel net device interface @@ -2509,9 +2486,6 @@ static const struct net_device_ops efx_netdev_ops = { #endif .ndo_get_phys_port_id = efx_get_phys_port_id, .ndo_get_phys_port_name = efx_get_phys_port_name, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = efx_netpoll, -#endif .ndo_setup_tc = efx_setup_tc, #ifdef CONFIG_RFS_ACCEL .ndo_rx_flow_steer = efx_filter_rfs, From a4f570be654de779eaf626a79c4e0aa5a790505f Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 27 Sep 2018 09:32:00 -0700 Subject: [PATCH 1424/1762] sfc-falcon: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. sfc-falcon uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Signed-off-by: Eric Dumazet Cc: Solarflare linux maintainers Cc: Edward Cree Cc: Bert Kenward Acked-By: Bert Kenward Signed-off-by: David S. Miller --- drivers/net/ethernet/sfc/falcon/efx.c | 26 -------------------------- 1 file changed, 26 deletions(-) diff --git a/drivers/net/ethernet/sfc/falcon/efx.c b/drivers/net/ethernet/sfc/falcon/efx.c index dd5530a4f8c8..03e2455c502e 100644 --- a/drivers/net/ethernet/sfc/falcon/efx.c +++ b/drivers/net/ethernet/sfc/falcon/efx.c @@ -2052,29 +2052,6 @@ static void ef4_fini_napi(struct ef4_nic *efx) ef4_fini_napi_channel(channel); } -/************************************************************************** - * - * Kernel netpoll interface - * - *************************************************************************/ - -#ifdef CONFIG_NET_POLL_CONTROLLER - -/* Although in the common case interrupts will be disabled, this is not - * guaranteed. However, all our work happens inside the NAPI callback, - * so no locking is required. - */ -static void ef4_netpoll(struct net_device *net_dev) -{ - struct ef4_nic *efx = netdev_priv(net_dev); - struct ef4_channel *channel; - - ef4_for_each_channel(channel, efx) - ef4_schedule_channel(channel); -} - -#endif - /************************************************************************** * * Kernel net device interface @@ -2250,9 +2227,6 @@ static const struct net_device_ops ef4_netdev_ops = { .ndo_set_mac_address = ef4_set_mac_address, .ndo_set_rx_mode = ef4_set_rx_mode, .ndo_set_features = ef4_set_features, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ef4_netpoll, -#endif .ndo_setup_tc = ef4_setup_tc, #ifdef CONFIG_RFS_ACCEL .ndo_rx_flow_steer = ef4_filter_rfs, From 0c3b9d1b37df16ae6046a5a01f769bf3d21b838c Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 27 Sep 2018 09:32:01 -0700 Subject: [PATCH 1425/1762] ibmvnic: remove ndo_poll_controller As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. ibmvnic uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. ibmvnic_netpoll_controller() was completely wrong anyway, as it was scheduling NAPI to service RX queues (instead of TX), so I doubt netpoll ever worked on this driver. Signed-off-by: Eric Dumazet Cc: Thomas Falcon Cc: John Allen Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/ibmvnic.c | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index 4f0daf67b18d..699ef942b615 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -2207,19 +2207,6 @@ restart_poll: return frames_processed; } -#ifdef CONFIG_NET_POLL_CONTROLLER -static void ibmvnic_netpoll_controller(struct net_device *dev) -{ - struct ibmvnic_adapter *adapter = netdev_priv(dev); - int i; - - replenish_pools(netdev_priv(dev)); - for (i = 0; i < adapter->req_rx_queues; i++) - ibmvnic_interrupt_rx(adapter->rx_scrq[i]->irq, - adapter->rx_scrq[i]); -} -#endif - static int wait_for_reset(struct ibmvnic_adapter *adapter) { int rc, ret; @@ -2292,9 +2279,6 @@ static const struct net_device_ops ibmvnic_netdev_ops = { .ndo_set_mac_address = ibmvnic_set_mac, .ndo_validate_addr = eth_validate_addr, .ndo_tx_timeout = ibmvnic_tx_timeout, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ibmvnic_netpoll_controller, -#endif .ndo_change_mtu = ibmvnic_change_mtu, .ndo_features_check = ibmvnic_features_check, }; From ea7e0480a4b695d0aa6b3fa99bd658a003122113 Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Tue, 25 Sep 2018 15:51:26 -0700 Subject: [PATCH 1426/1762] MIPS: VDSO: Always map near top of user memory When using the legacy mmap layout, for example triggered using ulimit -s unlimited, get_unmapped_area() fills memory from bottom to top starting from a fairly low address near TASK_UNMAPPED_BASE. This placement is suboptimal if the user application wishes to allocate large amounts of heap memory using the brk syscall. With the VDSO being located low in the user's virtual address space, the amount of space available for access using brk is limited much more than it was prior to the introduction of the VDSO. For example: # ulimit -s unlimited; cat /proc/self/maps 00400000-004ec000 r-xp 00000000 08:00 71436 /usr/bin/coreutils 004fc000-004fd000 rwxp 000ec000 08:00 71436 /usr/bin/coreutils 004fd000-0050f000 rwxp 00000000 00:00 0 00cc3000-00ce4000 rwxp 00000000 00:00 0 [heap] 2ab96000-2ab98000 r--p 00000000 00:00 0 [vvar] 2ab98000-2ab99000 r-xp 00000000 00:00 0 [vdso] 2ab99000-2ab9d000 rwxp 00000000 00:00 0 ... Resolve this by adjusting STACK_TOP to reserve space for the VDSO & providing an address hint to get_unmapped_area() causing it to use this space even when using the legacy mmap layout. We reserve enough space for the VDSO, plus 1MB or 256MB for 32 bit & 64 bit systems respectively within which we randomize the VDSO base address. Previously this randomization was taken care of by the mmap base address randomization performed by arch_mmap_rnd(). The 1MB & 256MB sizes are somewhat arbitrary but chosen such that we have some randomization without taking up too much of the user's virtual address space, which is often in short supply for 32 bit systems. With this the VDSO is always mapped at a high address, leaving lots of space for statically linked programs to make use of brk: # ulimit -s unlimited; cat /proc/self/maps 00400000-004ec000 r-xp 00000000 08:00 71436 /usr/bin/coreutils 004fc000-004fd000 rwxp 000ec000 08:00 71436 /usr/bin/coreutils 004fd000-0050f000 rwxp 00000000 00:00 0 00c28000-00c49000 rwxp 00000000 00:00 0 [heap] ... 7f67c000-7f69d000 rwxp 00000000 00:00 0 [stack] 7f7fc000-7f7fd000 rwxp 00000000 00:00 0 7fcf1000-7fcf3000 r--p 00000000 00:00 0 [vvar] 7fcf3000-7fcf4000 r-xp 00000000 00:00 0 [vdso] Signed-off-by: Paul Burton Reported-by: Huacai Chen Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") Cc: Huacai Chen Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org # v4.4+ --- arch/mips/include/asm/processor.h | 10 +++++----- arch/mips/kernel/process.c | 25 +++++++++++++++++++++++++ arch/mips/kernel/vdso.c | 18 +++++++++++++++++- 3 files changed, 47 insertions(+), 6 deletions(-) diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h index b2fa62922d88..49d6046ca1d0 100644 --- a/arch/mips/include/asm/processor.h +++ b/arch/mips/include/asm/processor.h @@ -13,6 +13,7 @@ #include #include +#include #include #include @@ -80,11 +81,10 @@ extern unsigned int vced_count, vcei_count; #endif -/* - * One page above the stack is used for branch delay slot "emulation". - * See dsemul.c for details. - */ -#define STACK_TOP ((TASK_SIZE & PAGE_MASK) - PAGE_SIZE) +#define VDSO_RANDOMIZE_SIZE (TASK_IS_32BIT_ADDR ? SZ_1M : SZ_256M) + +extern unsigned long mips_stack_top(void); +#define STACK_TOP mips_stack_top() /* * This decides where the kernel will search for a free chunk of vm diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 8fc69891e117..d4f7fd4550e1 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -32,6 +32,7 @@ #include #include +#include #include #include #include @@ -39,6 +40,7 @@ #include #include #include +#include #include #include #include @@ -645,6 +647,29 @@ out: return pc; } +unsigned long mips_stack_top(void) +{ + unsigned long top = TASK_SIZE & PAGE_MASK; + + /* One page for branch delay slot "emulation" */ + top -= PAGE_SIZE; + + /* Space for the VDSO, data page & GIC user page */ + top -= PAGE_ALIGN(current->thread.abi->vdso->size); + top -= PAGE_SIZE; + top -= mips_gic_present() ? PAGE_SIZE : 0; + + /* Space for cache colour alignment */ + if (cpu_has_dc_aliases) + top -= shm_align_mask + 1; + + /* Space to randomize the VDSO base */ + if (current->flags & PF_RANDOMIZE) + top -= VDSO_RANDOMIZE_SIZE; + + return top; +} + /* * Don't forget that the stack pointer must be aligned on a 8 bytes * boundary for 32-bits ABI and 16 bytes for 64-bits ABI. diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c index 8f845f6e5f42..48a9c6b90e07 100644 --- a/arch/mips/kernel/vdso.c +++ b/arch/mips/kernel/vdso.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -97,6 +98,21 @@ void update_vsyscall_tz(void) } } +static unsigned long vdso_base(void) +{ + unsigned long base; + + /* Skip the delay slot emulation page */ + base = STACK_TOP + PAGE_SIZE; + + if (current->flags & PF_RANDOMIZE) { + base += get_random_int() & (VDSO_RANDOMIZE_SIZE - 1); + base = PAGE_ALIGN(base); + } + + return base; +} + int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) { struct mips_vdso_image *image = current->thread.abi->vdso; @@ -137,7 +153,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) if (cpu_has_dc_aliases) size += shm_align_mask + 1; - base = get_unmapped_area(NULL, 0, size, 0, 0); + base = get_unmapped_area(NULL, vdso_base(), size, 0, 0); if (IS_ERR_VALUE(base)) { ret = base; goto out; From 951d223c6c16ed5d2a71a4d1f13c1e65d6882156 Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Thu, 27 Sep 2018 22:59:18 +0000 Subject: [PATCH 1427/1762] MIPS: Fix CONFIG_CMDLINE handling Commit 8ce355cf2e38 ("MIPS: Setup boot_command_line before plat_mem_setup") fixed a problem for systems which have CONFIG_CMDLINE_BOOL=y & use a DT with a chosen node that has either no bootargs property or an empty one. In this configuration early_init_dt_scan_chosen() copies CONFIG_CMDLINE into boot_command_line, but the MIPS code doesn't know this so it appends CONFIG_CMDLINE (via builtin_cmdline) to boot_command_line again. The result is that boot_command_line contains the arguments from CONFIG_CMDLINE twice. That commit took the approach of simply setting up boot_command_line from the MIPS code before early_init_dt_scan_chosen() runs, causing it not to copy CONFIG_CMDLINE to boot_command_line if a chosen node with no bootargs property is found. Unfortunately this is problematic for systems which do have a non-empty bootargs property & CONFIG_CMDLINE_BOOL=y. There early_init_dt_scan_chosen() will overwrite boot_command_line with the arguments from DT, which means we lose those from CONFIG_CMDLINE entirely. This breaks CONFIG_MIPS_CMDLINE_DTB_EXTEND. If we have CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER or CONFIG_MIPS_CMDLINE_BUILTIN_EXTEND selected and the DT has a bootargs property which we should ignore, it will instead be honoured breaking those configurations too. Fix this by reverting commit 8ce355cf2e38 ("MIPS: Setup boot_command_line before plat_mem_setup") to restore the former behaviour, and fixing the CONFIG_CMDLINE duplication issue by initializing boot_command_line to a non-empty string that early_init_dt_scan_chosen() will not overwrite with CONFIG_CMDLINE. This is a little ugly, but cleanup in this area is on its way. In the meantime this is at least easy to backport & contains the ugliness within arch/mips/. Signed-off-by: Paul Burton Fixes: 8ce355cf2e38 ("MIPS: Setup boot_command_line before plat_mem_setup") References: https://patchwork.linux-mips.org/patch/18804/ Patchwork: https://patchwork.linux-mips.org/patch/20813/ Cc: Frank Rowand Cc: Jaedon Shin Cc: Mathieu Malaterre Cc: Rob Herring Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org # v4.16+ --- arch/mips/kernel/setup.c | 48 +++++++++++++++++++++++----------------- 1 file changed, 28 insertions(+), 20 deletions(-) diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index c71d1eb7da59..8aaaa42f91ed 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -846,6 +846,34 @@ static void __init arch_mem_init(char **cmdline_p) struct memblock_region *reg; extern void plat_mem_setup(void); + /* + * Initialize boot_command_line to an innocuous but non-empty string in + * order to prevent early_init_dt_scan_chosen() from copying + * CONFIG_CMDLINE into it without our knowledge. We handle + * CONFIG_CMDLINE ourselves below & don't want to duplicate its + * content because repeating arguments can be problematic. + */ + strlcpy(boot_command_line, " ", COMMAND_LINE_SIZE); + + /* call board setup routine */ + plat_mem_setup(); + + /* + * Make sure all kernel memory is in the maps. The "UP" and + * "DOWN" are opposite for initdata since if it crosses over + * into another memory section you don't want that to be + * freed when the initdata is freed. + */ + arch_mem_addpart(PFN_DOWN(__pa_symbol(&_text)) << PAGE_SHIFT, + PFN_UP(__pa_symbol(&_edata)) << PAGE_SHIFT, + BOOT_MEM_RAM); + arch_mem_addpart(PFN_UP(__pa_symbol(&__init_begin)) << PAGE_SHIFT, + PFN_DOWN(__pa_symbol(&__init_end)) << PAGE_SHIFT, + BOOT_MEM_INIT_RAM); + + pr_info("Determined physical RAM map:\n"); + print_memory_map(); + #if defined(CONFIG_CMDLINE_BOOL) && defined(CONFIG_CMDLINE_OVERRIDE) strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE); #else @@ -873,26 +901,6 @@ static void __init arch_mem_init(char **cmdline_p) } #endif #endif - - /* call board setup routine */ - plat_mem_setup(); - - /* - * Make sure all kernel memory is in the maps. The "UP" and - * "DOWN" are opposite for initdata since if it crosses over - * into another memory section you don't want that to be - * freed when the initdata is freed. - */ - arch_mem_addpart(PFN_DOWN(__pa_symbol(&_text)) << PAGE_SHIFT, - PFN_UP(__pa_symbol(&_edata)) << PAGE_SHIFT, - BOOT_MEM_RAM); - arch_mem_addpart(PFN_UP(__pa_symbol(&__init_begin)) << PAGE_SHIFT, - PFN_DOWN(__pa_symbol(&__init_end)) << PAGE_SHIFT, - BOOT_MEM_INIT_RAM); - - pr_info("Determined physical RAM map:\n"); - print_memory_map(); - strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE); *cmdline_p = command_line; From befb1b3c2703897c5b8ffb0044dc5d0e5f27c5d7 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Wed, 19 Sep 2018 10:29:06 -0700 Subject: [PATCH 1428/1762] perf/core: Add sanity check to deal with pinned event failure It is possible that a failure can occur during the scheduling of a pinned event. The initial portion of perf_event_read_local() contains the various error checks an event should pass before it can be considered valid. Ensure that the potential scheduling failure of a pinned event is checked for and have a credible error. Suggested-by: Peter Zijlstra Signed-off-by: Reinette Chatre Signed-off-by: Thomas Gleixner Acked-by: Peter Zijlstra (Intel) Cc: fenghua.yu@intel.com Cc: tony.luck@intel.com Cc: acme@kernel.org Cc: gavin.hindman@intel.com Cc: jithu.joseph@intel.com Cc: dave.hansen@intel.com Cc: hpa@zytor.com Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/6486385d1f30336e9973b24c8c65f5079543d3d3.1537377064.git.reinette.chatre@intel.com --- kernel/events/core.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/kernel/events/core.c b/kernel/events/core.c index c80549bf82c6..dcb093e7b377 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -3935,6 +3935,12 @@ int perf_event_read_local(struct perf_event *event, u64 *value, goto out; } + /* If this is a pinned event it must be running on this CPU */ + if (event->attr.pinned && event->oncpu != smp_processor_id()) { + ret = -EBUSY; + goto out; + } + /* * If the event is currently on this CPU, its either a per-task event, * or local to this CPU. Furthermore it means its ACTIVE (otherwise From 573bcd380921b5216b62dcd072ec426f5ecbeb9d Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Fri, 28 Sep 2018 17:34:21 -0500 Subject: [PATCH 1429/1762] MAINTAINERS: Remove obsolete drivers/pci pattern from ACPI section Prior to 256a45937093 ("PCI/AER: Squash aerdrv_acpi.c into aerdrv.c"), drivers/pci/pcie/aer/aerdrv_acpi.c contained code to parse the ACPI HEST table. That code now lives in drivers/pci/pcie/aer.c. Remove the "F: drivers/pci/*/*/*acpi*" pattern because it matches nothing. We could add a "F: drivers/pci/pcie/aer.c" pattern to the ACPI APEI section, but that file sees a lot of changes, almost none of which are of interest to the ACPI folks. Signed-off-by: Bjorn Helgaas Acked-by: Rafael J. Wysocki --- MAINTAINERS | 1 - 1 file changed, 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 700408b7bc53..9babd8a0406b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -324,7 +324,6 @@ F: Documentation/ABI/testing/sysfs-bus-acpi F: Documentation/ABI/testing/configfs-acpi F: drivers/pci/*acpi* F: drivers/pci/*/*acpi* -F: drivers/pci/*/*/*acpi* F: tools/power/acpi/ ACPI APEI From ae29478766f4c8e16edca6fe1e25d73c47991ebe Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Sat, 29 Sep 2018 13:40:40 +1000 Subject: [PATCH 1430/1762] xfs: don't crash the vfs on a garbage inline symlink The VFS routine that calls ->get_link blindly copies whatever's returned into the user's buffer. If we return a NULL pointer, the vfs will crash on the null pointer. Therefore, return -EFSCORRUPTED instead of blowing up the kernel. [dgc: clean up with hch's suggestions] Reported-by: wen.xu@gatech.edu Signed-off-by: Darrick J. Wong Reviewed-by: Allison Henderson Signed-off-by: Dave Chinner --- fs/xfs/xfs_iops.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index c3e74f9128e8..f48ffd7a8d3e 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -471,8 +471,18 @@ xfs_vn_get_link_inline( struct inode *inode, struct delayed_call *done) { + char *link; + ASSERT(XFS_I(inode)->i_df.if_flags & XFS_IFINLINE); - return XFS_I(inode)->i_df.if_u1.if_data; + + /* + * The VFS crashes on a NULL pointer, so return -EFSCORRUPTED if + * if_data is junk. + */ + link = XFS_I(inode)->i_df.if_u1.if_data; + if (!link) + return ERR_PTR(-EFSCORRUPTED); + return link; } STATIC int From d5a2e2893da0d62c3888c91ae2da798adc17a9b9 Mon Sep 17 00:00:00 2001 From: Brian Foster Date: Sat, 29 Sep 2018 13:41:58 +1000 Subject: [PATCH 1431/1762] xfs: remove last of unnecessary xfs_defer_cancel() callers Now that deferred operations are completely managed via transactions, it's no longer necessary to cancel the dfops in error paths that already cancel the associated transaction. There are a few such calls lingering throughout the codebase. Remove all remaining unnecessary calls to xfs_defer_cancel(). This leaves xfs_defer_cancel() calls in two places. The first is the call in the transaction cancel path itself, which facilitates this patch. The second is made via the xfs_defer_finish() error path to provide consistent error semantics with transaction commit. For example, xfs_trans_commit() expects an xfs_defer_finish() failure to clean up the dfops structure before it returns. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- fs/xfs/libxfs/xfs_attr.c | 28 ++++++++-------------------- fs/xfs/libxfs/xfs_attr_remote.c | 10 ++-------- fs/xfs/xfs_bmap_util.c | 12 +++++------- fs/xfs/xfs_inode.c | 10 +--------- 4 files changed, 16 insertions(+), 44 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index 1e671d4eb6fa..c6299f82a6e4 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -587,7 +587,7 @@ xfs_attr_leaf_addname( */ error = xfs_attr3_leaf_to_node(args); if (error) - goto out_defer_cancel; + return error; error = xfs_defer_finish(&args->trans); if (error) return error; @@ -675,7 +675,7 @@ xfs_attr_leaf_addname( error = xfs_attr3_leaf_to_shortform(bp, args, forkoff); /* bp is gone due to xfs_da_shrink_inode */ if (error) - goto out_defer_cancel; + return error; error = xfs_defer_finish(&args->trans); if (error) return error; @@ -693,9 +693,6 @@ xfs_attr_leaf_addname( error = xfs_attr3_leaf_clearflag(args); } return error; -out_defer_cancel: - xfs_defer_cancel(args->trans); - return error; } /* @@ -738,15 +735,12 @@ xfs_attr_leaf_removename( error = xfs_attr3_leaf_to_shortform(bp, args, forkoff); /* bp is gone due to xfs_da_shrink_inode */ if (error) - goto out_defer_cancel; + return error; error = xfs_defer_finish(&args->trans); if (error) return error; } return 0; -out_defer_cancel: - xfs_defer_cancel(args->trans); - return error; } /* @@ -864,7 +858,7 @@ restart: state = NULL; error = xfs_attr3_leaf_to_node(args); if (error) - goto out_defer_cancel; + goto out; error = xfs_defer_finish(&args->trans); if (error) goto out; @@ -888,7 +882,7 @@ restart: */ error = xfs_da3_split(state); if (error) - goto out_defer_cancel; + goto out; error = xfs_defer_finish(&args->trans); if (error) goto out; @@ -984,7 +978,7 @@ restart: if (retval && (state->path.active > 1)) { error = xfs_da3_join(state); if (error) - goto out_defer_cancel; + goto out; error = xfs_defer_finish(&args->trans); if (error) goto out; @@ -1013,9 +1007,6 @@ out: if (error) return error; return retval; -out_defer_cancel: - xfs_defer_cancel(args->trans); - goto out; } /* @@ -1107,7 +1098,7 @@ xfs_attr_node_removename( if (retval && (state->path.active > 1)) { error = xfs_da3_join(state); if (error) - goto out_defer_cancel; + goto out; error = xfs_defer_finish(&args->trans); if (error) goto out; @@ -1138,7 +1129,7 @@ xfs_attr_node_removename( error = xfs_attr3_leaf_to_shortform(bp, args, forkoff); /* bp is gone due to xfs_da_shrink_inode */ if (error) - goto out_defer_cancel; + goto out; error = xfs_defer_finish(&args->trans); if (error) goto out; @@ -1150,9 +1141,6 @@ xfs_attr_node_removename( out: xfs_da_state_free(state); return error; -out_defer_cancel: - xfs_defer_cancel(args->trans); - goto out; } /* diff --git a/fs/xfs/libxfs/xfs_attr_remote.c b/fs/xfs/libxfs/xfs_attr_remote.c index af094063e402..d89363c6b523 100644 --- a/fs/xfs/libxfs/xfs_attr_remote.c +++ b/fs/xfs/libxfs/xfs_attr_remote.c @@ -485,7 +485,7 @@ xfs_attr_rmtval_set( blkcnt, XFS_BMAPI_ATTRFORK, args->total, &map, &nmap); if (error) - goto out_defer_cancel; + return error; error = xfs_defer_finish(&args->trans); if (error) return error; @@ -553,9 +553,6 @@ xfs_attr_rmtval_set( } ASSERT(valuelen == 0); return 0; -out_defer_cancel: - xfs_defer_cancel(args->trans); - return error; } /* @@ -625,7 +622,7 @@ xfs_attr_rmtval_remove( error = xfs_bunmapi(args->trans, args->dp, lblkno, blkcnt, XFS_BMAPI_ATTRFORK, 1, &done); if (error) - goto out_defer_cancel; + return error; error = xfs_defer_finish(&args->trans); if (error) return error; @@ -638,7 +635,4 @@ xfs_attr_rmtval_remove( return error; } return 0; -out_defer_cancel: - xfs_defer_cancel(args->trans); - return error; } diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index addbd74ecd8e..ae3cc393724f 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1584,7 +1584,7 @@ xfs_swap_extent_rmap( tirec.br_blockcount, &irec, &nimaps, 0); if (error) - goto out_defer; + goto out; ASSERT(nimaps == 1); ASSERT(tirec.br_startoff == irec.br_startoff); trace_xfs_swap_extent_rmap_remap_piece(ip, &irec); @@ -1599,22 +1599,22 @@ xfs_swap_extent_rmap( /* Remove the mapping from the donor file. */ error = xfs_bmap_unmap_extent(tp, tip, &uirec); if (error) - goto out_defer; + goto out; /* Remove the mapping from the source file. */ error = xfs_bmap_unmap_extent(tp, ip, &irec); if (error) - goto out_defer; + goto out; /* Map the donor file's blocks into the source file. */ error = xfs_bmap_map_extent(tp, ip, &uirec); if (error) - goto out_defer; + goto out; /* Map the source file's blocks into the donor file. */ error = xfs_bmap_map_extent(tp, tip, &irec); if (error) - goto out_defer; + goto out; error = xfs_defer_finish(tpp); tp = *tpp; @@ -1636,8 +1636,6 @@ xfs_swap_extent_rmap( tip->i_d.di_flags2 = tip_flags2; return 0; -out_defer: - xfs_defer_cancel(tp); out: trace_xfs_swap_extent_rmap_error(ip, error, _RET_IP_); tip->i_d.di_flags2 = tip_flags2; diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index d957a46dc1cb..05db9540e459 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -1563,7 +1563,7 @@ xfs_itruncate_extents_flags( error = xfs_bunmapi(tp, ip, first_unmap_block, unmap_len, flags, XFS_ITRUNC_MAX_EXTENTS, &done); if (error) - goto out_bmap_cancel; + goto out; /* * Duplicate the transaction that has the permanent @@ -1599,14 +1599,6 @@ xfs_itruncate_extents_flags( out: *tpp = tp; return error; -out_bmap_cancel: - /* - * If the bunmapi call encounters an error, return to the caller where - * the transaction can be properly aborted. We just need to make sure - * we're not holding any resources that we were not when we came in. - */ - xfs_defer_cancel(tp); - goto out; } int From d9183105caa926522a4bc8a40e162de7019f1a21 Mon Sep 17 00:00:00 2001 From: Brian Foster Date: Sat, 29 Sep 2018 13:44:40 +1000 Subject: [PATCH 1432/1762] xfs: don't unlock invalidated buf on aborted tx commit xfstests generic/388,475 occasionally reproduce assertion failures in xfs_buf_item_unpin() when the final bli reference is dropped on an invalidated buffer and the buffer is not locked as it is expected to be. Invalidated buffers should remain locked on transaction commit until the final unpin, at which point the buffer is removed from the AIL and the bli is freed since stale buffers are not written back. The assert failures are associated with filesystem shutdown, typically due to log I/O errors injected by the test. The problematic situation can occur if the shutdown happens to cause a race between an active transaction that has invalidated a particular buffer and an I/O error on a log buffer that contains the bli associated with the same (now stale) buffer. Both transaction and log contexts acquire a bli reference. If the transaction has already invalidated the buffer by the time the I/O error occurs and ends up aborting due to shutdown, the transaction and log hold the last two references to a stale bli. If the transaction cancel occurs first, it treats the buffer as non-stale due to the aborted state: the bli reference is dropped and the buffer is released/unlocked. The log buffer I/O error handling eventually calls into xfs_buf_item_unpin(), drops the final reference to the bli and treats it as stale. The buffer wasn't left locked by xfs_buf_item_unlock(), however, so the assert fails and the buffer is double unlocked. The latter problem is mitigated by the fact that the fs is shutdown and no further damage is possible. ->iop_unlock() of an invalidated buffer should behave consistently with respect to the bli refcount, regardless of aborted state. If the refcount remains elevated on commit, we know the bli is awaiting an unpin (since it can't be in another transaction) and will be handled appropriately on log buffer completion. If the final bli reference of an invalidated buffer is dropped in ->iop_unlock(), we can assume the transaction has aborted because invalidation implies a dirty transaction. In the non-abort case, the log would have acquired a bli reference in ->iop_pin() and prevented bli release at ->iop_unlock() time. In the abort case the item must be freed and buffer unlocked because it wasn't pinned by the log. Rework xfs_buf_item_unlock() to simplify the currently circuitous and duplicate logic and leave invalidated buffers locked based on bli refcount, regardless of aborted state. This ensures that a pinned, stale buffer is always found locked when eventually unpinned. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf_item.c | 91 ++++++++++++++++++++----------------------- fs/xfs/xfs_trace.h | 1 - 2 files changed, 42 insertions(+), 50 deletions(-) diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index 1c9d1398980b..42fce70b474d 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -556,73 +556,66 @@ xfs_buf_item_unlock( { struct xfs_buf_log_item *bip = BUF_ITEM(lip); struct xfs_buf *bp = bip->bli_buf; + bool freed; bool aborted; - bool hold = !!(bip->bli_flags & XFS_BLI_HOLD); - bool dirty = !!(bip->bli_flags & XFS_BLI_DIRTY); + bool hold = bip->bli_flags & XFS_BLI_HOLD; + bool dirty = bip->bli_flags & XFS_BLI_DIRTY; + bool stale = bip->bli_flags & XFS_BLI_STALE; #if defined(DEBUG) || defined(XFS_WARN) - bool ordered = !!(bip->bli_flags & XFS_BLI_ORDERED); + bool ordered = bip->bli_flags & XFS_BLI_ORDERED; #endif - aborted = test_bit(XFS_LI_ABORTED, &lip->li_flags); - - /* Clear the buffer's association with this transaction. */ - bp->b_transp = NULL; - - /* - * The per-transaction state has been copied above so clear it from the - * bli. - */ - bip->bli_flags &= ~(XFS_BLI_LOGGED | XFS_BLI_HOLD | XFS_BLI_ORDERED); - - /* - * If the buf item is marked stale, then don't do anything. We'll - * unlock the buffer and free the buf item when the buffer is unpinned - * for the last time. - */ - if (bip->bli_flags & XFS_BLI_STALE) { - trace_xfs_buf_item_unlock_stale(bip); - ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL); - if (!aborted) { - atomic_dec(&bip->bli_refcount); - return; - } - } - trace_xfs_buf_item_unlock(bip); /* - * If the buf item isn't tracking any data, free it, otherwise drop the - * reference we hold to it. If we are aborting the transaction, this may - * be the only reference to the buf item, so we free it anyway - * regardless of whether it is dirty or not. A dirty abort implies a - * shutdown, anyway. - * * The bli dirty state should match whether the blf has logged segments * except for ordered buffers, where only the bli should be dirty. */ ASSERT((!ordered && dirty == xfs_buf_item_dirty_format(bip)) || (ordered && dirty && !xfs_buf_item_dirty_format(bip))); + ASSERT(!stale || (bip->__bli_format.blf_flags & XFS_BLF_CANCEL)); + + aborted = test_bit(XFS_LI_ABORTED, &lip->li_flags); /* - * Clean buffers, by definition, cannot be in the AIL. However, aborted - * buffers may be in the AIL regardless of dirty state. An aborted - * transaction that invalidates a buffer already in the AIL may have - * marked it stale and cleared the dirty state, for example. - * - * Therefore if we are aborting a buffer and we've just taken the last - * reference away, we have to check if it is in the AIL before freeing - * it. We need to free it in this case, because an aborted transaction - * has already shut the filesystem down and this is the last chance we - * will have to do so. + * Clear the buffer's association with this transaction and + * per-transaction state from the bli, which has been copied above. */ - if (atomic_dec_and_test(&bip->bli_refcount)) { - if (aborted) { - ASSERT(XFS_FORCED_SHUTDOWN(lip->li_mountp)); + bp->b_transp = NULL; + bip->bli_flags &= ~(XFS_BLI_LOGGED | XFS_BLI_HOLD | XFS_BLI_ORDERED); + + /* + * Drop the transaction's bli reference and deal with the item if we had + * the last one. We must free the item if clean or aborted since it + * wasn't pinned by the log and this is the last chance to do so. If the + * bli is freed and dirty (but non-aborted), the buffer was not dirty in + * this transaction but modified by a previous one and still awaiting + * writeback. In that case, the bli is freed on buffer writeback + * completion. + */ + freed = atomic_dec_and_test(&bip->bli_refcount); + if (freed) { + ASSERT(!aborted || XFS_FORCED_SHUTDOWN(lip->li_mountp)); + /* + * An aborted item may be in the AIL regardless of dirty state. + * For example, consider an aborted transaction that invalidated + * a dirty bli and cleared the dirty state. + */ + if (aborted) xfs_trans_ail_remove(lip, SHUTDOWN_LOG_IO_ERROR); + if (aborted || !dirty) xfs_buf_item_relse(bp); - } else if (!dirty) - xfs_buf_item_relse(bp); + } else if (stale) { + /* + * Stale buffers remain locked until final unpin unless the bli + * was freed in the branch above. A freed stale bli implies an + * abort because buffer invalidation dirties the bli and + * transaction. + */ + ASSERT(!freed); + return; } + ASSERT(!stale || (aborted && freed)); if (!hold) xfs_buf_relse(bp); diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index ad315e83bc02..3043e5ed6495 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -473,7 +473,6 @@ DEFINE_BUF_ITEM_EVENT(xfs_buf_item_pin); DEFINE_BUF_ITEM_EVENT(xfs_buf_item_unpin); DEFINE_BUF_ITEM_EVENT(xfs_buf_item_unpin_stale); DEFINE_BUF_ITEM_EVENT(xfs_buf_item_unlock); -DEFINE_BUF_ITEM_EVENT(xfs_buf_item_unlock_stale); DEFINE_BUF_ITEM_EVENT(xfs_buf_item_committed); DEFINE_BUF_ITEM_EVENT(xfs_buf_item_push); DEFINE_BUF_ITEM_EVENT(xfs_trans_get_buf); From 23420d05e67d23728e116321c4afe084ebfa6427 Mon Sep 17 00:00:00 2001 From: Brian Foster Date: Sat, 29 Sep 2018 13:45:02 +1000 Subject: [PATCH 1433/1762] xfs: clean up xfs_trans_brelse() xfs_trans_brelse() is a bit of a historical mess, similar to xfs_buf_item_unlock(). It is unnecessarily verbose, has snippets of commented out code, inconsistency with regard to stale items, etc. Clean up xfs_trans_brelse() to use similar logic and flow as xfs_buf_item_unlock() with regard to bli reference count handling. This patch makes no functional changes, but facilitates further refactoring of the common bli reference count handling code. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- fs/xfs/xfs_trans_buf.c | 112 +++++++++++++++-------------------------- 1 file changed, 40 insertions(+), 72 deletions(-) diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c index 15919f67a88f..7498f87ceed3 100644 --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -322,49 +322,40 @@ xfs_trans_read_buf_map( } /* - * Release the buffer bp which was previously acquired with one of the - * xfs_trans_... buffer allocation routines if the buffer has not - * been modified within this transaction. If the buffer is modified - * within this transaction, do decrement the recursion count but do - * not release the buffer even if the count goes to 0. If the buffer is not - * modified within the transaction, decrement the recursion count and - * release the buffer if the recursion count goes to 0. + * Release a buffer previously joined to the transaction. If the buffer is + * modified within this transaction, decrement the recursion count but do not + * release the buffer even if the count goes to 0. If the buffer is not modified + * within the transaction, decrement the recursion count and release the buffer + * if the recursion count goes to 0. * - * If the buffer is to be released and it was not modified before - * this transaction began, then free the buf_log_item associated with it. + * If the buffer is to be released and it was not already dirty before this + * transaction began, then also free the buf_log_item associated with it. * - * If the transaction pointer is NULL, make this just a normal - * brelse() call. + * If the transaction pointer is NULL, this is a normal xfs_buf_relse() call. */ void xfs_trans_brelse( - xfs_trans_t *tp, - xfs_buf_t *bp) + struct xfs_trans *tp, + struct xfs_buf *bp) { - struct xfs_buf_log_item *bip; - int freed; + struct xfs_buf_log_item *bip = bp->b_log_item; + bool freed; + bool dirty; - /* - * Default to a normal brelse() call if the tp is NULL. - */ - if (tp == NULL) { - ASSERT(bp->b_transp == NULL); + ASSERT(bp->b_transp == tp); + + if (!tp) { xfs_buf_relse(bp); return; } - ASSERT(bp->b_transp == tp); - bip = bp->b_log_item; + trace_xfs_trans_brelse(bip); ASSERT(bip->bli_item.li_type == XFS_LI_BUF); - ASSERT(!(bip->bli_flags & XFS_BLI_STALE)); - ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_CANCEL)); ASSERT(atomic_read(&bip->bli_refcount) > 0); - trace_xfs_trans_brelse(bip); - /* - * If the release is just for a recursive lock, - * then decrement the count and return. + * If the release is for a recursive lookup, then decrement the count + * and return. */ if (bip->bli_recur > 0) { bip->bli_recur--; @@ -372,63 +363,40 @@ xfs_trans_brelse( } /* - * If the buffer is dirty within this transaction, we can't + * If the buffer is invalidated or dirty in this transaction, we can't * release it until we commit. */ if (test_bit(XFS_LI_DIRTY, &bip->bli_item.li_flags)) return; - - /* - * If the buffer has been invalidated, then we can't release - * it until the transaction commits to disk unless it is re-dirtied - * as part of this transaction. This prevents us from pulling - * the item from the AIL before we should. - */ if (bip->bli_flags & XFS_BLI_STALE) return; + /* + * Unlink the log item from the transaction and clear the hold flag, if + * set. We wouldn't want the next user of the buffer to get confused. + */ ASSERT(!(bip->bli_flags & XFS_BLI_LOGGED)); - - /* - * Free up the log item descriptor tracking the released item. - */ xfs_trans_del_item(&bip->bli_item); + bip->bli_flags &= ~XFS_BLI_HOLD; /* - * Clear the hold flag in the buf log item if it is set. - * We wouldn't want the next user of the buffer to - * get confused. - */ - if (bip->bli_flags & XFS_BLI_HOLD) { - bip->bli_flags &= ~XFS_BLI_HOLD; - } - - /* - * Drop our reference to the buf log item. + * Drop the reference to the bli. At this point, the bli must be either + * freed or dirty (or both). If freed, there are a couple cases where we + * are responsible to free the item. If the bli is clean, we're the last + * user of it. If the fs has shut down, the bli may be dirty and AIL + * resident, but won't ever be written back. We therefore may also need + * to remove it from the AIL before freeing it. */ freed = atomic_dec_and_test(&bip->bli_refcount); - - /* - * If the buf item is not tracking data in the log, then we must free it - * before releasing the buffer back to the free pool. - * - * If the fs has shutdown and we dropped the last reference, it may fall - * on us to release a (possibly dirty) bli if it never made it to the - * AIL (e.g., the aborted unpin already happened and didn't release it - * due to our reference). Since we're already shutdown and need - * ail_lock, just force remove from the AIL and release the bli here. - */ - if (XFS_FORCED_SHUTDOWN(tp->t_mountp) && freed) { - xfs_trans_ail_remove(&bip->bli_item, SHUTDOWN_LOG_IO_ERROR); - xfs_buf_item_relse(bp); - } else if (!(bip->bli_flags & XFS_BLI_DIRTY)) { -/*** - ASSERT(bp->b_pincount == 0); -***/ - ASSERT(atomic_read(&bip->bli_refcount) == 0); - ASSERT(!test_bit(XFS_LI_IN_AIL, &bip->bli_item.li_flags)); - ASSERT(!(bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF)); - xfs_buf_item_relse(bp); + dirty = bip->bli_flags & XFS_BLI_DIRTY; + ASSERT(freed || dirty); + if (freed) { + bool abort = XFS_FORCED_SHUTDOWN(tp->t_mountp); + ASSERT(abort || !test_bit(XFS_LI_IN_AIL, &bip->bli_item.li_flags)); + if (abort) + xfs_trans_ail_remove(&bip->bli_item, SHUTDOWN_LOG_IO_ERROR); + if (!dirty || abort) + xfs_buf_item_relse(bp); } bp->b_transp = NULL; From 95808459b110f16b50f03a70ecfa72bb14bd8a96 Mon Sep 17 00:00:00 2001 From: Brian Foster Date: Sat, 29 Sep 2018 13:45:26 +1000 Subject: [PATCH 1434/1762] xfs: refactor xfs_buf_log_item reference count handling The xfs_buf_log_item structure has a reference counter with slightly tricky semantics. In the common case, a buffer is logged and committed in a transaction, committed to the on-disk log (added to the AIL) and then finally written back and removed from the AIL. The bli refcount covers two potentially overlapping timeframes: 1. the bli is held in an active transaction 2. the bli is pinned by the log The caveat to this approach is that the reference counter does not purely dictate the lifetime of the bli. IOW, when a dirty buffer is physically logged and unpinned, the bli refcount may go to zero as the log item is inserted into the AIL. Only once the buffer is written back can the bli finally be freed. The above semantics means that it is not enough for the various refcount decrementing contexts to release the bli on decrement to zero. xfs_trans_brelse(), transaction commit (->iop_unlock()) and unpin (->iop_unpin()) must all drop the associated reference and make additional checks to determine if the current context is responsible for freeing the item. For example, if a transaction holds but does not dirty a particular bli, the commit may drop the refcount to zero. If the bli itself is clean, it is also not AIL resident and must be freed at this time. The same is true for xfs_trans_brelse(). If the transaction dirties a bli and then aborts or an unpin results in an abort due to a log I/O error, the last reference count holder is expected to explicitly remove the item from the AIL and release it (since an abort means filesystem shutdown and metadata writeback will never occur). This leads to fairly complex checks being replicated in a few different places. Since ->iop_unlock() and xfs_trans_brelse() are nearly identical, refactor the logic into a common helper that implements and documents the semantics in one place. This patch does not change behavior. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf_item.c | 90 +++++++++++++++++++++++++----------------- fs/xfs/xfs_buf_item.h | 1 + fs/xfs/xfs_trans_buf.c | 23 +---------- 3 files changed, 56 insertions(+), 58 deletions(-) diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index 42fce70b474d..12d8455bfbb2 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -531,6 +531,49 @@ xfs_buf_item_push( return rval; } +/* + * Drop the buffer log item refcount and take appropriate action. This helper + * determines whether the bli must be freed or not, since a decrement to zero + * does not necessarily mean the bli is unused. + * + * Return true if the bli is freed, false otherwise. + */ +bool +xfs_buf_item_put( + struct xfs_buf_log_item *bip) +{ + struct xfs_log_item *lip = &bip->bli_item; + bool aborted; + bool dirty; + + /* drop the bli ref and return if it wasn't the last one */ + if (!atomic_dec_and_test(&bip->bli_refcount)) + return false; + + /* + * We dropped the last ref and must free the item if clean or aborted. + * If the bli is dirty and non-aborted, the buffer was clean in the + * transaction but still awaiting writeback from previous changes. In + * that case, the bli is freed on buffer writeback completion. + */ + aborted = test_bit(XFS_LI_ABORTED, &lip->li_flags) || + XFS_FORCED_SHUTDOWN(lip->li_mountp); + dirty = bip->bli_flags & XFS_BLI_DIRTY; + if (dirty && !aborted) + return false; + + /* + * The bli is aborted or clean. An aborted item may be in the AIL + * regardless of dirty state. For example, consider an aborted + * transaction that invalidated a dirty bli and cleared the dirty + * state. + */ + if (aborted) + xfs_trans_ail_remove(lip, SHUTDOWN_LOG_IO_ERROR); + xfs_buf_item_relse(bip->bli_buf); + return true; +} + /* * Release the buffer associated with the buf log item. If there is no dirty * logged data associated with the buffer recorded in the buf log item, then @@ -556,13 +599,12 @@ xfs_buf_item_unlock( { struct xfs_buf_log_item *bip = BUF_ITEM(lip); struct xfs_buf *bp = bip->bli_buf; - bool freed; - bool aborted; + bool released; bool hold = bip->bli_flags & XFS_BLI_HOLD; - bool dirty = bip->bli_flags & XFS_BLI_DIRTY; bool stale = bip->bli_flags & XFS_BLI_STALE; #if defined(DEBUG) || defined(XFS_WARN) bool ordered = bip->bli_flags & XFS_BLI_ORDERED; + bool dirty = bip->bli_flags & XFS_BLI_DIRTY; #endif trace_xfs_buf_item_unlock(bip); @@ -575,8 +617,6 @@ xfs_buf_item_unlock( (ordered && dirty && !xfs_buf_item_dirty_format(bip))); ASSERT(!stale || (bip->__bli_format.blf_flags & XFS_BLF_CANCEL)); - aborted = test_bit(XFS_LI_ABORTED, &lip->li_flags); - /* * Clear the buffer's association with this transaction and * per-transaction state from the bli, which has been copied above. @@ -585,40 +625,16 @@ xfs_buf_item_unlock( bip->bli_flags &= ~(XFS_BLI_LOGGED | XFS_BLI_HOLD | XFS_BLI_ORDERED); /* - * Drop the transaction's bli reference and deal with the item if we had - * the last one. We must free the item if clean or aborted since it - * wasn't pinned by the log and this is the last chance to do so. If the - * bli is freed and dirty (but non-aborted), the buffer was not dirty in - * this transaction but modified by a previous one and still awaiting - * writeback. In that case, the bli is freed on buffer writeback - * completion. + * Unref the item and unlock the buffer unless held or stale. Stale + * buffers remain locked until final unpin unless the bli is freed by + * the unref call. The latter implies shutdown because buffer + * invalidation dirties the bli and transaction. */ - freed = atomic_dec_and_test(&bip->bli_refcount); - if (freed) { - ASSERT(!aborted || XFS_FORCED_SHUTDOWN(lip->li_mountp)); - /* - * An aborted item may be in the AIL regardless of dirty state. - * For example, consider an aborted transaction that invalidated - * a dirty bli and cleared the dirty state. - */ - if (aborted) - xfs_trans_ail_remove(lip, SHUTDOWN_LOG_IO_ERROR); - if (aborted || !dirty) - xfs_buf_item_relse(bp); - } else if (stale) { - /* - * Stale buffers remain locked until final unpin unless the bli - * was freed in the branch above. A freed stale bli implies an - * abort because buffer invalidation dirties the bli and - * transaction. - */ - ASSERT(!freed); + released = xfs_buf_item_put(bip); + if (hold || (stale && !released)) return; - } - ASSERT(!stale || (aborted && freed)); - - if (!hold) - xfs_buf_relse(bp); + ASSERT(!stale || test_bit(XFS_LI_ABORTED, &lip->li_flags)); + xfs_buf_relse(bp); } /* diff --git a/fs/xfs/xfs_buf_item.h b/fs/xfs/xfs_buf_item.h index 3f7d7b72e7e6..90f65f891fab 100644 --- a/fs/xfs/xfs_buf_item.h +++ b/fs/xfs/xfs_buf_item.h @@ -51,6 +51,7 @@ struct xfs_buf_log_item { int xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *); void xfs_buf_item_relse(struct xfs_buf *); +bool xfs_buf_item_put(struct xfs_buf_log_item *); void xfs_buf_item_log(struct xfs_buf_log_item *, uint, uint); bool xfs_buf_item_dirty_format(struct xfs_buf_log_item *); void xfs_buf_attach_iodone(struct xfs_buf *, diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c index 7498f87ceed3..286a287ac57a 100644 --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -339,8 +339,6 @@ xfs_trans_brelse( struct xfs_buf *bp) { struct xfs_buf_log_item *bip = bp->b_log_item; - bool freed; - bool dirty; ASSERT(bp->b_transp == tp); @@ -379,25 +377,8 @@ xfs_trans_brelse( xfs_trans_del_item(&bip->bli_item); bip->bli_flags &= ~XFS_BLI_HOLD; - /* - * Drop the reference to the bli. At this point, the bli must be either - * freed or dirty (or both). If freed, there are a couple cases where we - * are responsible to free the item. If the bli is clean, we're the last - * user of it. If the fs has shut down, the bli may be dirty and AIL - * resident, but won't ever be written back. We therefore may also need - * to remove it from the AIL before freeing it. - */ - freed = atomic_dec_and_test(&bip->bli_refcount); - dirty = bip->bli_flags & XFS_BLI_DIRTY; - ASSERT(freed || dirty); - if (freed) { - bool abort = XFS_FORCED_SHUTDOWN(tp->t_mountp); - ASSERT(abort || !test_bit(XFS_LI_IN_AIL, &bip->bli_item.li_flags)); - if (abort) - xfs_trans_ail_remove(&bip->bli_item, SHUTDOWN_LOG_IO_ERROR); - if (!dirty || abort) - xfs_buf_item_relse(bp); - } + /* drop the reference to the bli */ + xfs_buf_item_put(bip); bp->b_transp = NULL; xfs_buf_relse(bp); From 8683edb7755b853f0dd92e07fe2e7a7e675a84d7 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Sat, 29 Sep 2018 13:46:21 +1000 Subject: [PATCH 1435/1762] xfs: avoid lockdep false positives in xfs_trans_alloc We've had a few reports of lockdep tripping over memory reclaim context vs filesystem freeze "deadlocks". They all have looked to be false positives on analysis, but it seems that they are being tripped because we take freeze references before we run a GFP_KERNEL allocation for the struct xfs_trans. We can avoid this false positive vector just by re-ordering the operations in xfs_trans_alloc(). That is. we need allocate the structure before we take the freeze reference and enter the GFP_NOFS allocation context that follows the xfs_trans around. This prevents lockdep from seeing the GFP_KERNEL allocation inside the transaction context, and that prevents it from triggering the freeze level vs alloc context vs reclaim warnings. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig --- fs/xfs/xfs_trans.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c index bedc5a5133a5..912b42f5fe4a 100644 --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -259,6 +259,14 @@ xfs_trans_alloc( struct xfs_trans *tp; int error; + /* + * Allocate the handle before we do our freeze accounting and setting up + * GFP_NOFS allocation context so that we avoid lockdep false positives + * by doing GFP_KERNEL allocations inside sb_start_intwrite(). + */ + tp = kmem_zone_zalloc(xfs_trans_zone, + (flags & XFS_TRANS_NOFS) ? KM_NOFS : KM_SLEEP); + if (!(flags & XFS_TRANS_NO_WRITECOUNT)) sb_start_intwrite(mp->m_super); @@ -270,8 +278,6 @@ xfs_trans_alloc( mp->m_super->s_writers.frozen == SB_FREEZE_COMPLETE); atomic_inc(&mp->m_active_trans); - tp = kmem_zone_zalloc(xfs_trans_zone, - (flags & XFS_TRANS_NOFS) ? KM_NOFS : KM_SLEEP); tp->t_magic = XFS_TRANS_HEADER_MAGIC; tp->t_flags = flags; tp->t_mountp = mp; From df307077916fde42734a49022fc8ed23cc58caa4 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Sat, 29 Sep 2018 13:47:15 +1000 Subject: [PATCH 1436/1762] xfs: fix transaction leak in xfs_reflink_allocate_cow() When xfs_reflink_allocate_cow() allocates a transaction, it drops the ILOCK to perform the operation. This Introduces a race condition where another thread modifying the file can perform the COW allocation operation underneath us. This result in the retry loop finding an allocated block and jumping straight to the conversion code. It does not, however, cancel the transaction it holds and so this gets leaked. This results in a lockdep warning: ================================================ WARNING: lock held when returning to user space! 4.18.5 #1 Not tainted ------------------------------------------------ worker/6123 is leaving the kernel with locks still held! 1 lock held by worker/6123: #0: 000000009eab4f1b (sb_internal#2){.+.+}, at: xfs_trans_alloc+0x17c/0x220 And eventually the filesystem deadlocks because it runs out of log space that is reserved by the leaked transaction and never gets released. The logic flow in xfs_reflink_allocate_cow() is a convoluted mess of gotos - it's no surprise that it has bug where the flow through several goto jumps then fails to clean up context from a non-obvious logic path. CLean up the logic flow and make sure every path does the right thing. Reported-by: Alexander Y. Fomichev Tested-by: Alexander Y. Fomichev Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=200981 Signed-off-by: Dave Chinner [hch: slight refactor] Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Dave Chinner --- fs/xfs/xfs_reflink.c | 133 ++++++++++++++++++++++++++----------------- 1 file changed, 80 insertions(+), 53 deletions(-) diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index 38f405415b88..d60d0eeed7b9 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -352,6 +352,47 @@ xfs_reflink_convert_cow( return error; } +/* + * Find the extent that maps the given range in the COW fork. Even if the extent + * is not shared we might have a preallocation for it in the COW fork. If so we + * use it that rather than trigger a new allocation. + */ +static int +xfs_find_trim_cow_extent( + struct xfs_inode *ip, + struct xfs_bmbt_irec *imap, + bool *shared, + bool *found) +{ + xfs_fileoff_t offset_fsb = imap->br_startoff; + xfs_filblks_t count_fsb = imap->br_blockcount; + struct xfs_iext_cursor icur; + struct xfs_bmbt_irec got; + bool trimmed; + + *found = false; + + /* + * If we don't find an overlapping extent, trim the range we need to + * allocate to fit the hole we found. + */ + if (!xfs_iext_lookup_extent(ip, ip->i_cowfp, offset_fsb, &icur, &got) || + got.br_startoff > offset_fsb) + return xfs_reflink_trim_around_shared(ip, imap, shared, &trimmed); + + *shared = true; + if (isnullstartblock(got.br_startblock)) { + xfs_trim_extent(imap, got.br_startoff, got.br_blockcount); + return 0; + } + + /* real extent found - no need to allocate */ + xfs_trim_extent(&got, offset_fsb, count_fsb); + *imap = got; + *found = true; + return 0; +} + /* Allocate all CoW reservations covering a range of blocks in a file. */ int xfs_reflink_allocate_cow( @@ -363,78 +404,64 @@ xfs_reflink_allocate_cow( struct xfs_mount *mp = ip->i_mount; xfs_fileoff_t offset_fsb = imap->br_startoff; xfs_filblks_t count_fsb = imap->br_blockcount; - struct xfs_bmbt_irec got; - struct xfs_trans *tp = NULL; + struct xfs_trans *tp; int nimaps, error = 0; - bool trimmed; + bool found; xfs_filblks_t resaligned; xfs_extlen_t resblks = 0; - struct xfs_iext_cursor icur; -retry: - ASSERT(xfs_is_reflink_inode(ip)); ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); + ASSERT(xfs_is_reflink_inode(ip)); + + error = xfs_find_trim_cow_extent(ip, imap, shared, &found); + if (error || !*shared) + return error; + if (found) + goto convert; + + resaligned = xfs_aligned_fsb_count(imap->br_startoff, + imap->br_blockcount, xfs_get_cowextsz_hint(ip)); + resblks = XFS_DIOSTRAT_SPACE_RES(mp, resaligned); + + xfs_iunlock(ip, *lockmode); + error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write, resblks, 0, 0, &tp); + *lockmode = XFS_ILOCK_EXCL; + xfs_ilock(ip, *lockmode); + + if (error) + return error; + + error = xfs_qm_dqattach_locked(ip, false); + if (error) + goto out_trans_cancel; /* - * Even if the extent is not shared we might have a preallocation for - * it in the COW fork. If so use it. + * Check for an overlapping extent again now that we dropped the ilock. */ - if (xfs_iext_lookup_extent(ip, ip->i_cowfp, offset_fsb, &icur, &got) && - got.br_startoff <= offset_fsb) { - *shared = true; - - /* If we have a real allocation in the COW fork we're done. */ - if (!isnullstartblock(got.br_startblock)) { - xfs_trim_extent(&got, offset_fsb, count_fsb); - *imap = got; - goto convert; - } - - xfs_trim_extent(imap, got.br_startoff, got.br_blockcount); - } else { - error = xfs_reflink_trim_around_shared(ip, imap, shared, &trimmed); - if (error || !*shared) - goto out; - } - - if (!tp) { - resaligned = xfs_aligned_fsb_count(imap->br_startoff, - imap->br_blockcount, xfs_get_cowextsz_hint(ip)); - resblks = XFS_DIOSTRAT_SPACE_RES(mp, resaligned); - - xfs_iunlock(ip, *lockmode); - error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write, resblks, 0, 0, &tp); - *lockmode = XFS_ILOCK_EXCL; - xfs_ilock(ip, *lockmode); - - if (error) - return error; - - error = xfs_qm_dqattach_locked(ip, false); - if (error) - goto out; - goto retry; + error = xfs_find_trim_cow_extent(ip, imap, shared, &found); + if (error || !*shared) + goto out_trans_cancel; + if (found) { + xfs_trans_cancel(tp); + goto convert; } error = xfs_trans_reserve_quota_nblks(tp, ip, resblks, 0, XFS_QMOPT_RES_REGBLKS); if (error) - goto out; + goto out_trans_cancel; xfs_trans_ijoin(tp, ip, 0); - nimaps = 1; - /* Allocate the entire reservation as unwritten blocks. */ + nimaps = 1; error = xfs_bmapi_write(tp, ip, imap->br_startoff, imap->br_blockcount, XFS_BMAPI_COWFORK | XFS_BMAPI_PREALLOC, resblks, imap, &nimaps); if (error) - goto out_trans_cancel; + goto out_unreserve; xfs_inode_set_cowblocks_tag(ip); - - /* Finish up. */ error = xfs_trans_commit(tp); if (error) return error; @@ -447,12 +474,12 @@ retry: return -ENOSPC; convert: return xfs_reflink_convert_cow_extent(ip, imap, offset_fsb, count_fsb); -out_trans_cancel: + +out_unreserve: xfs_trans_unreserve_quota_nblks(tp, ip, (long)resblks, 0, XFS_QMOPT_RES_REGBLKS); -out: - if (tp) - xfs_trans_cancel(tp); +out_trans_cancel: + xfs_trans_cancel(tp); return error; } From 0065b54119973c9089f8222c1c8f9237ed9787a9 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 29 Sep 2018 13:47:46 +1000 Subject: [PATCH 1437/1762] xfs: don't bring in extents in xfs_bmap_punch_delalloc_range This function is only used to punch out delayed allocations on I/O failure, which means we need to have read the extents earlier. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Dave Chinner --- fs/xfs/xfs_bmap_util.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index ae3cc393724f..6de8d90041ff 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -702,13 +702,9 @@ xfs_bmap_punch_delalloc_range( struct xfs_iext_cursor icur; int error = 0; - xfs_ilock(ip, XFS_ILOCK_EXCL); - if (!(ifp->if_flags & XFS_IFEXTENTS)) { - error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK); - if (error) - goto out_unlock; - } + ASSERT(ifp->if_flags & XFS_IFEXTENTS); + xfs_ilock(ip, XFS_ILOCK_EXCL); if (!xfs_iext_lookup_extent_before(ip, ifp, &end_fsb, &icur, &got)) goto out_unlock; From 2863c2ebc4f45d2bc150016f36e2f31c155597e8 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Sat, 29 Sep 2018 13:48:21 +1000 Subject: [PATCH 1438/1762] xfs: remove duplicated include from alloc.c Remove duplicated include xfs_alloc.h Signed-off-by: YueHaibing Reviewed-by: Darrick J. Wong Signed-off-by: Dave Chinner --- fs/xfs/scrub/alloc.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/xfs/scrub/alloc.c b/fs/xfs/scrub/alloc.c index 036b5c7021eb..376bcb585ae6 100644 --- a/fs/xfs/scrub/alloc.c +++ b/fs/xfs/scrub/alloc.c @@ -17,7 +17,6 @@ #include "xfs_sb.h" #include "xfs_alloc.h" #include "xfs_rmap.h" -#include "xfs_alloc.h" #include "scrub/xfs_scrub.h" #include "scrub/scrub.h" #include "scrub/common.h" From f369a13cead821e679c7415dc66a17ec48cc26bf Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Sat, 29 Sep 2018 13:49:00 +1000 Subject: [PATCH 1439/1762] xfs: don't treat unknown di_flags2 as corruption in scrub xchk_inode_flags2() currently treats any di_flags2 values that the running kernel doesn't recognize as corruption, and calls xchk_ino_set_corrupt() if they are set. However, it's entirely possible that these flags were set in some newer kernel and are quite valid, but ignored in this kernel. (Validators don't care one bit about unknown di_flags2.) Call xchk_ino_set_warning instead, because this may or may not actually indicate a problem. Signed-off-by: Eric Sandeen Reviewed-by: Darrick J. Wong Signed-off-by: Dave Chinner --- fs/xfs/libxfs/xfs_format.h | 2 ++ fs/xfs/scrub/inode.c | 4 +++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index 059bc44c27e8..afbe336600e1 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -1016,6 +1016,8 @@ static inline void xfs_dinode_put_rdev(struct xfs_dinode *dip, xfs_dev_t rdev) #define XFS_DIFLAG_EXTSZINHERIT_BIT 12 /* inherit inode extent size */ #define XFS_DIFLAG_NODEFRAG_BIT 13 /* do not reorganize/defragment */ #define XFS_DIFLAG_FILESTREAM_BIT 14 /* use filestream allocator */ +/* Do not use bit 15, di_flags is legacy and unchanging now */ + #define XFS_DIFLAG_REALTIME (1 << XFS_DIFLAG_REALTIME_BIT) #define XFS_DIFLAG_PREALLOC (1 << XFS_DIFLAG_PREALLOC_BIT) #define XFS_DIFLAG_NEWRTBM (1 << XFS_DIFLAG_NEWRTBM_BIT) diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c index 5b3b177c0fc9..e386c9b0b4ab 100644 --- a/fs/xfs/scrub/inode.c +++ b/fs/xfs/scrub/inode.c @@ -126,6 +126,7 @@ xchk_inode_flags( { struct xfs_mount *mp = sc->mp; + /* di_flags are all taken, last bit cannot be used */ if (flags & ~XFS_DIFLAG_ANY) goto bad; @@ -172,8 +173,9 @@ xchk_inode_flags2( { struct xfs_mount *mp = sc->mp; + /* Unknown di_flags2 could be from a future kernel */ if (flags2 & ~XFS_DIFLAG2_ANY) - goto bad; + xchk_ino_set_warning(sc, ino); /* reflink flag requires reflink feature */ if ((flags2 & XFS_DIFLAG2_REFLINK) && From f5f3f959b70b272dfe2d05758e43ae52f5ff7748 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 29 Sep 2018 13:49:58 +1000 Subject: [PATCH 1440/1762] xfs: skip delalloc COW blocks in xfs_reflink_end_cow The iomap direct I/O code issues a single ->end_io call for the whole I/O request, and if some of the extents cowered needed a COW operation it will call xfs_reflink_end_cow over the whole range. When we do AIO writes we drop the iolock after doing the initial setup, but before the I/O completion. Between dropping the lock and completing the I/O we can have a racing buffered write create new delalloc COW fork extents in the region covered by the outstanding direct I/O write, and thus see delalloc COW fork extents in xfs_reflink_end_cow. As concurrent writes are fundamentally racy and no guarantees are given we can simply skip those. This can be easily reproduced with xfstests generic/208 in always_cow mode. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Dave Chinner --- fs/xfs/xfs_reflink.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index d60d0eeed7b9..5289e22cb081 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -693,14 +693,12 @@ xfs_reflink_end_cow( if (!del.br_blockcount) goto prev_extent; - ASSERT(!isnullstartblock(got.br_startblock)); - /* - * Don't remap unwritten extents; these are - * speculatively preallocated CoW extents that have been - * allocated but have not yet been involved in a write. + * Only remap real extent that contain data. With AIO + * speculatively preallocations can leak into the range we + * are called upon, and we need to skip them. */ - if (got.br_state == XFS_EXT_UNWRITTEN) + if (!xfs_bmap_is_real_extent(&got)) goto prev_extent; /* Unmap the old blocks in the data fork. */ From 339e1a3fcdd1990e5ec115325ccb4c6f4cc5ee16 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Sat, 29 Sep 2018 13:50:13 +1000 Subject: [PATCH 1441/1762] xfs: validate inode di_forkoff Verify the inode di_forkoff, lifted from xfs_repair's process_check_inode_forkoff(). Signed-off-by: Eric Sandeen Reviewed-by: Brian Foster Signed-off-by: Dave Chinner --- fs/xfs/libxfs/xfs_inode_buf.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c index 30d1d60f1d46..09d9c8cfa4a0 100644 --- a/fs/xfs/libxfs/xfs_inode_buf.c +++ b/fs/xfs/libxfs/xfs_inode_buf.c @@ -415,6 +415,31 @@ xfs_dinode_verify_fork( return NULL; } +static xfs_failaddr_t +xfs_dinode_verify_forkoff( + struct xfs_dinode *dip, + struct xfs_mount *mp) +{ + if (!XFS_DFORK_Q(dip)) + return NULL; + + switch (dip->di_format) { + case XFS_DINODE_FMT_DEV: + if (dip->di_forkoff != (roundup(sizeof(xfs_dev_t), 8) >> 3)) + return __this_address; + break; + case XFS_DINODE_FMT_LOCAL: /* fall through ... */ + case XFS_DINODE_FMT_EXTENTS: /* fall through ... */ + case XFS_DINODE_FMT_BTREE: + if (dip->di_forkoff >= (XFS_LITINO(mp, dip->di_version) >> 3)) + return __this_address; + break; + default: + return __this_address; + } + return NULL; +} + xfs_failaddr_t xfs_dinode_verify( struct xfs_mount *mp, @@ -470,6 +495,11 @@ xfs_dinode_verify( if (mode && (flags & XFS_DIFLAG_REALTIME) && !mp->m_rtdev_targp) return __this_address; + /* check for illegal values of forkoff */ + fa = xfs_dinode_verify_forkoff(dip, mp); + if (fa) + return fa; + /* Do we have appropriate data fork formats for the mode? */ switch (mode & S_IFMT) { case S_IFIFO: From ec2ed0b5e96fea2a4539bd7f7f43499ecd45be8b Mon Sep 17 00:00:00 2001 From: Brian Foster Date: Sat, 29 Sep 2018 13:50:41 +1000 Subject: [PATCH 1442/1762] xfs: remove invalid log recovery first/last cycle check One of the first steps of log recovery is to check for the special case of a zeroed log. If the first cycle in the log is zero or the tail portion of the log is zeroed, the head is set to the first instance of cycle 0. xlog_find_zeroed() includes a sanity check that enforces that the first cycle in the log must be 1 if the last cycle is 0. While this is true in most cases, the check is not totally valid because it doesn't consider the case where the filesystem crashed after a partial/out of order log buffer completion that wraps around the end of the physical log. For example, consider a filesystem that has completed most of the first cycle of the log, reaches the end of the physical log and splits the next single log buffer write into two in order to wrap around the end of the log. If these I/Os are reordered, the second (wrapped) I/O completes and the first happens to fail, the log is left in a state where the last cycle of the log is 0 and the first cycle is 2. This causes the xlog_find_zeroed() sanity check to fail and prevents the filesystem from mounting. This situation has been reproduced on particular systems via repeated runs of generic/475. This is an expected state that log recovery already knows how to deal with, however. Since the log is still partially zeroed, the head is detected correctly and points to a valid tail. The subsequent stale block detection clears blocks beyond the head up to the tail (within a maximum range), with the express purpose of clearing such out of order writes. As expected, this removes the out of order cycle 2 blocks at the physical start of the log. In other words, the only thing that prevents a clean mount and recovery of the filesystem in this scenario is the specific (last == 0 && first != 1) sanity check in xlog_find_zeroed(). Since the log head/tail are now independently validated via cycle, log record and CRC checks, this highly specific first cycle check is of dubious value. Remove it and rely on the higher level validation to determine whether log content is sane and recoverable. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- fs/xfs/xfs_log_recover.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index a21dc61ec09e..1fc9e9042e0e 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -1570,16 +1570,6 @@ xlog_find_zeroed( if (last_cycle != 0) { /* log completely written to */ xlog_put_bp(bp); return 0; - } else if (first_cycle != 1) { - /* - * If the cycle of the last block is zero, the cycle of - * the first block must be 1. If it's not, maybe we're - * not looking at a log... Bail out. - */ - xfs_warn(log->l_mp, - "Log inconsistent or not a log (last==0, first!=1)"); - error = -EINVAL; - goto bp_err; } /* we have a partially zeroed log */ From 561295a32579e2db3b22f74d1f45d5c4c4fd9375 Mon Sep 17 00:00:00 2001 From: Brian Foster Date: Sat, 29 Sep 2018 13:51:01 +1000 Subject: [PATCH 1443/1762] iomap: set page dirty after partial delalloc on mkwrite The iomap page fault mechanism currently dirties the associated page after the full block range of the page has been allocated. This leaves the page susceptible to delayed allocations without ever being set dirty on sub-page block sized filesystems. For example, consider a page fault on a page with one preexisting real (non-delalloc) block allocated in the middle of the page. The first iomap_apply() iteration performs delayed allocation on the range up to the preexisting block, the next iteration finds the preexisting block, and the last iteration attempts to perform delayed allocation on the range after the prexisting block to the end of the page. If the first allocation succeeds and the final allocation fails with -ENOSPC, iomap_apply() returns the error and iomap_page_mkwrite() fails to dirty the page having already performed partial delayed allocation. This eventually results in the page being invalidated without ever converting the delayed allocation to real blocks. This problem is reliably reproduced by generic/083 on XFS on ppc64 systems (64k page size, 4k block size). It results in leaked delalloc blocks on inode reclaim, which triggers an assert failure in xfs_fs_destroy_inode() and filesystem accounting inconsistency. Move the set_page_dirty() call from iomap_page_mkwrite() to the actor callback, similar to how the buffer head implementation works. The actor callback is called iff ->iomap_begin() returns success, so ensures the page is dirtied as soon as possible after an allocation. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- fs/iomap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/iomap.c b/fs/iomap.c index 74762b1ec233..ec15cf2ec696 100644 --- a/fs/iomap.c +++ b/fs/iomap.c @@ -1051,6 +1051,7 @@ iomap_page_mkwrite_actor(struct inode *inode, loff_t pos, loff_t length, } else { WARN_ON_ONCE(!PageUptodate(page)); iomap_page_create(inode, page); + set_page_dirty(page); } return length; @@ -1090,7 +1091,6 @@ int iomap_page_mkwrite(struct vm_fault *vmf, const struct iomap_ops *ops) length -= ret; } - set_page_dirty(page); wait_for_stable_page(page); return VM_FAULT_LOCKED; out_unlock: From d51aea13dd6753186a2bea7619029c460bdf0c4c Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Wed, 19 Sep 2018 17:22:21 -0700 Subject: [PATCH 1444/1762] cpufreq: qcom-kryo: Fix section annotations There is currently a warning when building the Kryo cpufreq driver into the kernel image: WARNING: vmlinux.o(.text+0x8aa424): Section mismatch in reference from the function qcom_cpufreq_kryo_probe() to the function .init.text:qcom_cpufreq_kryo_get_msm_id() The function qcom_cpufreq_kryo_probe() references the function __init qcom_cpufreq_kryo_get_msm_id(). This is often because qcom_cpufreq_kryo_probe lacks a __init annotation or the annotation of qcom_cpufreq_kryo_get_msm_id is wrong. Remove the '__init' annotation from qcom_cpufreq_kryo_get_msm_id so that there is no more mismatch warning. Additionally, Nick noticed that the remove function was marked as '__init' when it should really be marked as '__exit'. Fixes: 46e2856b8e18 (cpufreq: Add Kryo CPU scaling driver) Fixes: 5ad7346b4ae2 (cpufreq: kryo: Add module remove and exit) Reported-by: Nick Desaulniers Signed-off-by: Nathan Chancellor Acked-by: Viresh Kumar Cc: 4.18+ # 4.18+ Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/qcom-cpufreq-kryo.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/cpufreq/qcom-cpufreq-kryo.c b/drivers/cpufreq/qcom-cpufreq-kryo.c index a1830fa25fc5..2a3675c24032 100644 --- a/drivers/cpufreq/qcom-cpufreq-kryo.c +++ b/drivers/cpufreq/qcom-cpufreq-kryo.c @@ -44,7 +44,7 @@ enum _msm8996_version { struct platform_device *cpufreq_dt_pdev, *kryo_cpufreq_pdev; -static enum _msm8996_version __init qcom_cpufreq_kryo_get_msm_id(void) +static enum _msm8996_version qcom_cpufreq_kryo_get_msm_id(void) { size_t len; u32 *msm_id; @@ -222,7 +222,7 @@ static int __init qcom_cpufreq_kryo_init(void) } module_init(qcom_cpufreq_kryo_init); -static void __init qcom_cpufreq_kryo_exit(void) +static void __exit qcom_cpufreq_kryo_exit(void) { platform_device_unregister(kryo_cpufreq_pdev); platform_driver_unregister(&qcom_cpufreq_kryo_driver); From c4ce446e33d7a0e978256ac6fea4c80e59d9de5f Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 28 Sep 2018 16:18:50 -0700 Subject: [PATCH 1445/1762] asix: Check for supported Wake-on-LAN modes The driver currently silently accepts unsupported Wake-on-LAN modes (other than WAKE_PHY or WAKE_MAGIC) without reporting that to the user, which is confusing. Fixes: 2e55cc7210fe ("[PATCH] USB: usbnet (3/9) module for ASIX Ethernet adapters") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/usb/asix_common.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c index e95dd12edec4..023b8d0bf175 100644 --- a/drivers/net/usb/asix_common.c +++ b/drivers/net/usb/asix_common.c @@ -607,6 +607,9 @@ int asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) struct usbnet *dev = netdev_priv(net); u8 opt = 0; + if (wolinfo->wolopts & ~(WAKE_PHY | WAKE_MAGIC)) + return -EINVAL; + if (wolinfo->wolopts & WAKE_PHY) opt |= AX_MONITOR_LINK; if (wolinfo->wolopts & WAKE_MAGIC) From 5ba6b4aa9a410c5e2c6417df52b5e2118ea9b467 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 28 Sep 2018 16:18:51 -0700 Subject: [PATCH 1446/1762] ax88179_178a: Check for supported Wake-on-LAN modes The driver currently silently accepts unsupported Wake-on-LAN modes (other than WAKE_PHY or WAKE_MAGIC) without reporting that to the user, which is confusing. Fixes: e2ca90c276e1 ("ax88179_178a: ASIX AX88179_178A USB 3.0/2.0 to gigabit ethernet adapter driver") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/usb/ax88179_178a.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c index 9e8ad372f419..2207f7a7d1ff 100644 --- a/drivers/net/usb/ax88179_178a.c +++ b/drivers/net/usb/ax88179_178a.c @@ -566,6 +566,9 @@ ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) struct usbnet *dev = netdev_priv(net); u8 opt = 0; + if (wolinfo->wolopts & ~(WAKE_PHY | WAKE_MAGIC)) + return -EINVAL; + if (wolinfo->wolopts & WAKE_PHY) opt |= AX_MONITOR_MODE_RWLC; if (wolinfo->wolopts & WAKE_MAGIC) From eb9ad088f96653a26b340f7c447c44cf023d5cdc Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 28 Sep 2018 16:18:52 -0700 Subject: [PATCH 1447/1762] lan78xx: Check for supported Wake-on-LAN modes The driver supports a fair amount of Wake-on-LAN modes, but is not checking that the user specified one that is supported. Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver") Signed-off-by: Florian Fainelli Reviewed-by: Woojung Huh Signed-off-by: David S. Miller --- drivers/net/usb/lan78xx.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index a9991c5f4736..c3c9ba44e2a1 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -1401,19 +1401,10 @@ static int lan78xx_set_wol(struct net_device *netdev, if (ret < 0) return ret; - pdata->wol = 0; - if (wol->wolopts & WAKE_UCAST) - pdata->wol |= WAKE_UCAST; - if (wol->wolopts & WAKE_MCAST) - pdata->wol |= WAKE_MCAST; - if (wol->wolopts & WAKE_BCAST) - pdata->wol |= WAKE_BCAST; - if (wol->wolopts & WAKE_MAGIC) - pdata->wol |= WAKE_MAGIC; - if (wol->wolopts & WAKE_PHY) - pdata->wol |= WAKE_PHY; - if (wol->wolopts & WAKE_ARP) - pdata->wol |= WAKE_ARP; + if (wol->wolopts & ~WAKE_ALL) + return -EINVAL; + + pdata->wol = wol->wolopts; device_set_wakeup_enable(&dev->udev->dev, (bool)wol->wolopts); From c5cb93e994ffb43b7b3b1ff10b9f928f54574a36 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 28 Sep 2018 16:18:53 -0700 Subject: [PATCH 1448/1762] sr9800: Check for supported Wake-on-LAN modes The driver currently silently accepts unsupported Wake-on-LAN modes (other than WAKE_PHY or WAKE_MAGIC) without reporting that to the user, which is confusing. Fixes: 19a38d8e0aa3 ("USB2NET : SR9800 : One chip USB2.0 USB2NET SR9800 Device Driver Support") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/usb/sr9800.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/usb/sr9800.c b/drivers/net/usb/sr9800.c index 9277a0f228df..35f39f23d881 100644 --- a/drivers/net/usb/sr9800.c +++ b/drivers/net/usb/sr9800.c @@ -421,6 +421,9 @@ sr_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) struct usbnet *dev = netdev_priv(net); u8 opt = 0; + if (wolinfo->wolopts & ~(WAKE_PHY | WAKE_MAGIC)) + return -EINVAL; + if (wolinfo->wolopts & WAKE_PHY) opt |= SR_MONITOR_LINK; if (wolinfo->wolopts & WAKE_MAGIC) From f2750df1548bd8a2b060eb609fc43ca82811af4c Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 28 Sep 2018 16:18:54 -0700 Subject: [PATCH 1449/1762] r8152: Check for supported Wake-on-LAN Modes The driver does not check for Wake-on-LAN modes specified by an user, but will conditionally set the device as wake-up enabled or not based on that, which could be a very confusing user experience. Fixes: 21ff2e8976b1 ("r8152: support WOL") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/usb/r8152.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 2cd71bdb6484..f1b5201cc320 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -4506,6 +4506,9 @@ static int rtl8152_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) if (!rtl_can_wakeup(tp)) return -EOPNOTSUPP; + if (wol->wolopts & ~WAKE_ANY) + return -EINVAL; + ret = usb_autopm_get_interface(tp->intf); if (ret < 0) goto out_set_wol; From 9c734b2769a73eea2e9e9767c0e0bf839ff23679 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 28 Sep 2018 16:18:55 -0700 Subject: [PATCH 1450/1762] smsc75xx: Check for Wake-on-LAN modes The driver does not check for Wake-on-LAN modes specified by an user, but will conditionally set the device as wake-up enabled or not based on that, which could be a very confusing user experience. Fixes: 6c636503260d ("smsc75xx: add wol magic packet support") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/usb/smsc75xx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index 05553d252446..e5a4cbb366dc 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -731,6 +731,9 @@ static int smsc75xx_ethtool_set_wol(struct net_device *net, struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); int ret; + if (wolinfo->wolopts & ~SUPPORTED_WAKE) + return -EINVAL; + pdata->wolopts = wolinfo->wolopts & SUPPORTED_WAKE; ret = device_set_wakeup_enable(&dev->udev->dev, pdata->wolopts); From c530c471ba37bdd9fe1c7185b01455c00ae606fb Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 28 Sep 2018 16:18:56 -0700 Subject: [PATCH 1451/1762] smsc95xx: Check for Wake-on-LAN modes The driver does not check for Wake-on-LAN modes specified by an user, but will conditionally set the device as wake-up enabled or not based on that, which could be a very confusing user experience. Fixes: e0e474a83c18 ("smsc95xx: add wol magic packet support") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/usb/smsc95xx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index 06b4d290784d..262e7a3c23cb 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -774,6 +774,9 @@ static int smsc95xx_ethtool_set_wol(struct net_device *net, struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]); int ret; + if (wolinfo->wolopts & ~SUPPORTED_WAKE) + return -EINVAL; + pdata->wolopts = wolinfo->wolopts & SUPPORTED_WAKE; ret = device_set_wakeup_enable(&dev->udev->dev, pdata->wolopts); From c140eb166d681f66bd7e99fb121357db1a503e7f Mon Sep 17 00:00:00 2001 From: LUU Duc Canh Date: Wed, 26 Sep 2018 21:00:54 +0200 Subject: [PATCH 1452/1762] tipc: fix failover problem We see the following scenario: 1) Link endpoint B on node 1 discovers that its peer endpoint is gone. Since there is a second working link, failover procedure is started. 2) Link endpoint A on node 1 sends a FAILOVER message to peer endpoint A on node 2. The node item 1->2 goes to state FAILINGOVER. 3) Linke endpoint A/2 receives the failover, and is supposed to take down its parallell link endpoint B/2, while producing a FAILOVER message to send back to A/1. 4) However, B/2 has already been deleted, so no FAILOVER message can created. 5) Node 1->2 remains in state FAILINGOVER forever, refusing to receive any messages that can bring B/1 up again. We are left with a non- redundant link between node 1 and 2. We fix this with letting endpoint A/2 build a dummy FAILOVER message to send to back to A/1, so that the situation can be resolved. Signed-off-by: LUU Duc Canh Signed-off-by: Jon Maloy Signed-off-by: David S. Miller --- net/tipc/link.c | 35 +++++++++++++++++++++++++++++++++++ net/tipc/link.h | 3 +++ net/tipc/node.c | 11 +++++++++++ 3 files changed, 49 insertions(+) diff --git a/net/tipc/link.c b/net/tipc/link.c index 26cc033ee167..4ed650ce6e61 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -410,6 +410,11 @@ char *tipc_link_name(struct tipc_link *l) return l->name; } +u32 tipc_link_state(struct tipc_link *l) +{ + return l->state; +} + /** * tipc_link_create - create a new link * @n: pointer to associated node @@ -1385,6 +1390,36 @@ static void tipc_link_build_proto_msg(struct tipc_link *l, int mtyp, bool probe, __skb_queue_tail(xmitq, skb); } +void tipc_link_create_dummy_tnl_msg(struct tipc_link *l, + struct sk_buff_head *xmitq) +{ + u32 onode = tipc_own_addr(l->net); + struct tipc_msg *hdr, *ihdr; + struct sk_buff_head tnlq; + struct sk_buff *skb; + u32 dnode = l->addr; + + skb_queue_head_init(&tnlq); + skb = tipc_msg_create(TUNNEL_PROTOCOL, FAILOVER_MSG, + INT_H_SIZE, BASIC_H_SIZE, + dnode, onode, 0, 0, 0); + if (!skb) { + pr_warn("%sunable to create tunnel packet\n", link_co_err); + return; + } + + hdr = buf_msg(skb); + msg_set_msgcnt(hdr, 1); + msg_set_bearer_id(hdr, l->peer_bearer_id); + + ihdr = (struct tipc_msg *)msg_data(hdr); + tipc_msg_init(onode, ihdr, TIPC_LOW_IMPORTANCE, TIPC_DIRECT_MSG, + BASIC_H_SIZE, dnode); + msg_set_errcode(ihdr, TIPC_ERR_NO_PORT); + __skb_queue_tail(&tnlq, skb); + tipc_link_xmit(l, &tnlq, xmitq); +} + /* tipc_link_tnl_prepare(): prepare and return a list of tunnel packets * with contents of the link's transmit and backlog queues. */ diff --git a/net/tipc/link.h b/net/tipc/link.h index 7bc494a33fdf..90488c538a4e 100644 --- a/net/tipc/link.h +++ b/net/tipc/link.h @@ -88,6 +88,8 @@ bool tipc_link_bc_create(struct net *net, u32 ownnode, u32 peer, struct tipc_link **link); void tipc_link_tnl_prepare(struct tipc_link *l, struct tipc_link *tnl, int mtyp, struct sk_buff_head *xmitq); +void tipc_link_create_dummy_tnl_msg(struct tipc_link *tnl, + struct sk_buff_head *xmitq); void tipc_link_build_reset_msg(struct tipc_link *l, struct sk_buff_head *xmitq); int tipc_link_fsm_evt(struct tipc_link *l, int evt); bool tipc_link_is_up(struct tipc_link *l); @@ -107,6 +109,7 @@ u16 tipc_link_rcv_nxt(struct tipc_link *l); u16 tipc_link_acked(struct tipc_link *l); u32 tipc_link_id(struct tipc_link *l); char *tipc_link_name(struct tipc_link *l); +u32 tipc_link_state(struct tipc_link *l); char tipc_link_plane(struct tipc_link *l); int tipc_link_prio(struct tipc_link *l); int tipc_link_window(struct tipc_link *l); diff --git a/net/tipc/node.c b/net/tipc/node.c index 68014f1b6976..b0ee25f1f2e6 100644 --- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -111,6 +111,7 @@ struct tipc_node { int action_flags; struct list_head list; int state; + bool failover_sent; u16 sync_point; int link_cnt; u16 working_links; @@ -680,6 +681,7 @@ static void __tipc_node_link_up(struct tipc_node *n, int bearer_id, *slot0 = bearer_id; *slot1 = bearer_id; tipc_node_fsm_evt(n, SELF_ESTABL_CONTACT_EVT); + n->failover_sent = false; n->action_flags |= TIPC_NOTIFY_NODE_UP; tipc_link_set_active(nl, true); tipc_bcast_add_peer(n->net, nl, xmitq); @@ -1615,6 +1617,15 @@ static bool tipc_node_check_state(struct tipc_node *n, struct sk_buff *skb, tipc_skb_queue_splice_tail_init(tipc_link_inputq(pl), tipc_link_inputq(l)); } + /* If parallel link was already down, and this happened before + * the tunnel link came up, FAILOVER was never sent. Ensure that + * FAILOVER is sent to get peer out of NODE_FAILINGOVER state. + */ + if (n->state != NODE_FAILINGOVER && !n->failover_sent) { + tipc_link_create_dummy_tnl_msg(l, xmitq); + n->failover_sent = true; + } + /* If pkts arrive out of order, use lowest calculated syncpt */ if (less(syncpt, n->sync_point)) n->sync_point = syncpt; From c333fa0c4f220f8f7ea5acd6b0ebf3bf13fd684d Mon Sep 17 00:00:00 2001 From: Shahed Shaikh Date: Wed, 26 Sep 2018 12:41:10 -0700 Subject: [PATCH 1453/1762] qlcnic: fix Tx descriptor corruption on 82xx devices In regular NIC transmission flow, driver always configures MAC using Tx queue zero descriptor as a part of MAC learning flow. But with multi Tx queue supported NIC, regular transmission can occur on any non-zero Tx queue and from that context it uses Tx queue zero descriptor to configure MAC, at the same time TX queue zero could be used by another CPU for regular transmission which could lead to Tx queue zero descriptor corruption and cause FW abort. This patch fixes this in such a way that driver always configures learned MAC address from the same Tx queue which is used for regular transmission. Fixes: 7e2cf4feba05 ("qlcnic: change driver hardware interface mechanism") Signed-off-by: Shahed Shaikh Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlcnic/qlcnic.h | 8 +++++--- drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c | 3 ++- drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h | 3 ++- drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h | 3 ++- drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c | 12 ++++++------ 5 files changed, 17 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h index 81312924df14..0c443ea98479 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h @@ -1800,7 +1800,8 @@ struct qlcnic_hardware_ops { int (*config_loopback) (struct qlcnic_adapter *, u8); int (*clear_loopback) (struct qlcnic_adapter *, u8); int (*config_promisc_mode) (struct qlcnic_adapter *, u32); - void (*change_l2_filter) (struct qlcnic_adapter *, u64 *, u16); + void (*change_l2_filter)(struct qlcnic_adapter *adapter, u64 *addr, + u16 vlan, struct qlcnic_host_tx_ring *tx_ring); int (*get_board_info) (struct qlcnic_adapter *); void (*set_mac_filter_count) (struct qlcnic_adapter *); void (*free_mac_list) (struct qlcnic_adapter *); @@ -2064,9 +2065,10 @@ static inline int qlcnic_nic_set_promisc(struct qlcnic_adapter *adapter, } static inline void qlcnic_change_filter(struct qlcnic_adapter *adapter, - u64 *addr, u16 id) + u64 *addr, u16 vlan, + struct qlcnic_host_tx_ring *tx_ring) { - adapter->ahw->hw_ops->change_l2_filter(adapter, addr, id); + adapter->ahw->hw_ops->change_l2_filter(adapter, addr, vlan, tx_ring); } static inline int qlcnic_get_board_info(struct qlcnic_adapter *adapter) diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c index 569d54ededec..a79d84f99102 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c @@ -2135,7 +2135,8 @@ out: } void qlcnic_83xx_change_l2_filter(struct qlcnic_adapter *adapter, u64 *addr, - u16 vlan_id) + u16 vlan_id, + struct qlcnic_host_tx_ring *tx_ring) { u8 mac[ETH_ALEN]; memcpy(&mac, addr, ETH_ALEN); diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h index b75a81246856..73fe2f64491d 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h @@ -550,7 +550,8 @@ int qlcnic_83xx_wrt_reg_indirect(struct qlcnic_adapter *, ulong, u32); int qlcnic_83xx_nic_set_promisc(struct qlcnic_adapter *, u32); int qlcnic_83xx_config_hw_lro(struct qlcnic_adapter *, int); int qlcnic_83xx_config_rss(struct qlcnic_adapter *, int); -void qlcnic_83xx_change_l2_filter(struct qlcnic_adapter *, u64 *, u16); +void qlcnic_83xx_change_l2_filter(struct qlcnic_adapter *adapter, u64 *addr, + u16 vlan, struct qlcnic_host_tx_ring *ring); int qlcnic_83xx_get_pci_info(struct qlcnic_adapter *, struct qlcnic_pci_info *); int qlcnic_83xx_set_nic_info(struct qlcnic_adapter *, struct qlcnic_info *); void qlcnic_83xx_initialize_nic(struct qlcnic_adapter *, int); diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h index 4bb33af8e2b3..56a3bd9e37dc 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h @@ -173,7 +173,8 @@ int qlcnic_82xx_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev); void qlcnic_82xx_get_beacon_state(struct qlcnic_adapter *); void qlcnic_82xx_change_filter(struct qlcnic_adapter *adapter, - u64 *uaddr, u16 vlan_id); + u64 *uaddr, u16 vlan_id, + struct qlcnic_host_tx_ring *tx_ring); int qlcnic_82xx_config_intr_coalesce(struct qlcnic_adapter *, struct ethtool_coalesce *); int qlcnic_82xx_set_rx_coalesce(struct qlcnic_adapter *); diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c index 84dd83031a1b..9647578cbe6a 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c @@ -268,13 +268,12 @@ static void qlcnic_add_lb_filter(struct qlcnic_adapter *adapter, } void qlcnic_82xx_change_filter(struct qlcnic_adapter *adapter, u64 *uaddr, - u16 vlan_id) + u16 vlan_id, struct qlcnic_host_tx_ring *tx_ring) { struct cmd_desc_type0 *hwdesc; struct qlcnic_nic_req *req; struct qlcnic_mac_req *mac_req; struct qlcnic_vlan_req *vlan_req; - struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; u32 producer; u64 word; @@ -301,7 +300,8 @@ void qlcnic_82xx_change_filter(struct qlcnic_adapter *adapter, u64 *uaddr, static void qlcnic_send_filter(struct qlcnic_adapter *adapter, struct cmd_desc_type0 *first_desc, - struct sk_buff *skb) + struct sk_buff *skb, + struct qlcnic_host_tx_ring *tx_ring) { struct vlan_ethhdr *vh = (struct vlan_ethhdr *)(skb->data); struct ethhdr *phdr = (struct ethhdr *)(skb->data); @@ -335,7 +335,7 @@ static void qlcnic_send_filter(struct qlcnic_adapter *adapter, tmp_fil->vlan_id == vlan_id) { if (jiffies > (QLCNIC_READD_AGE * HZ + tmp_fil->ftime)) qlcnic_change_filter(adapter, &src_addr, - vlan_id); + vlan_id, tx_ring); tmp_fil->ftime = jiffies; return; } @@ -350,7 +350,7 @@ static void qlcnic_send_filter(struct qlcnic_adapter *adapter, if (!fil) return; - qlcnic_change_filter(adapter, &src_addr, vlan_id); + qlcnic_change_filter(adapter, &src_addr, vlan_id, tx_ring); fil->ftime = jiffies; fil->vlan_id = vlan_id; memcpy(fil->faddr, &src_addr, ETH_ALEN); @@ -766,7 +766,7 @@ netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) } if (adapter->drv_mac_learn) - qlcnic_send_filter(adapter, first_desc, skb); + qlcnic_send_filter(adapter, first_desc, skb, tx_ring); tx_ring->tx_stats.tx_bytes += skb->len; tx_ring->tx_stats.xmit_called++; From ac8bd9e13be22a3d24bfc80972d4688e3e50e457 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 26 Sep 2018 22:12:39 +0200 Subject: [PATCH 1454/1762] r8169: Disable clk during suspend / resume Disable the clk during suspend to save power. Note that tp->clk may be NULL, the clk core functions handle this without problems. Reviewed-by: Andy Shevchenko Tested-by: Carlo Caione Signed-off-by: Hans de Goede Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index ab30aaeac6d3..d6b53f53909a 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -6869,8 +6869,10 @@ static int rtl8169_suspend(struct device *device) { struct pci_dev *pdev = to_pci_dev(device); struct net_device *dev = pci_get_drvdata(pdev); + struct rtl8169_private *tp = netdev_priv(dev); rtl8169_net_suspend(dev); + clk_disable_unprepare(tp->clk); return 0; } @@ -6898,6 +6900,9 @@ static int rtl8169_resume(struct device *device) { struct pci_dev *pdev = to_pci_dev(device); struct net_device *dev = pci_get_drvdata(pdev); + struct rtl8169_private *tp = netdev_priv(dev); + + clk_prepare_enable(tp->clk); if (netif_running(dev)) __rtl8169_resume(dev); From 43955a45dc0b4f3be7f0c3afc0e080ed59bb5280 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 26 Sep 2018 22:19:42 +0200 Subject: [PATCH 1455/1762] netlink: fix typo in nla_parse_nested() comment Fix a simple typo: attribuets -> attributes Signed-off-by: Johannes Berg Signed-off-by: David S. Miller --- include/net/netlink.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/net/netlink.h b/include/net/netlink.h index 0c154f98e987..39e1d875d507 100644 --- a/include/net/netlink.h +++ b/include/net/netlink.h @@ -153,7 +153,7 @@ * nla_find() find attribute in stream of attributes * nla_find_nested() find attribute in nested attributes * nla_parse() parse and validate stream of attrs - * nla_parse_nested() parse nested attribuets + * nla_parse_nested() parse nested attributes * nla_for_each_attr() loop over all attributes * nla_for_each_nested() loop over the nested attributes *========================================================================= From 03d179a840ce9e694db9d69bb643fdee04cfd28f Mon Sep 17 00:00:00 2001 From: Miguel Ojeda Date: Sun, 30 Sep 2018 13:50:05 +0200 Subject: [PATCH 1456/1762] MAINTAINERS: fix reference to moved drivers/{misc => auxdisplay}/panel.c Commit 51c1e9b554c9 ("auxdisplay: Move panel.c to drivers/auxdisplay folder") moved the file, but the MAINTAINERS reference was not updated. Link: https://lore.kernel.org/lkml/20180928220131.31075-1-joe@perches.com/ Reported-by: Joe Perches Signed-off-by: Miguel Ojeda --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 02a39617ec82..e6fde62a1d65 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10949,7 +10949,7 @@ M: Willy Tarreau M: Ksenija Stanojevic S: Odd Fixes F: Documentation/auxdisplay/lcd-panel-cgram.txt -F: drivers/misc/panel.c +F: drivers/auxdisplay/panel.c PARALLEL PORT SUBSYSTEM M: Sudip Mukherjee From 17b57b1883c1285f3d0dc2266e8f79286a7bef38 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sun, 30 Sep 2018 07:15:35 -0700 Subject: [PATCH 1457/1762] Linux 4.19-rc6 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 0c90c4354979..6c3da3e10f07 100644 --- a/Makefile +++ b/Makefile @@ -2,7 +2,7 @@ VERSION = 4 PATCHLEVEL = 19 SUBLEVEL = 0 -EXTRAVERSION = -rc5 +EXTRAVERSION = -rc6 NAME = Merciless Moray # *DOCUMENTATION* From 41e270f6898e7502be9fd6920ee0a108ca259d36 Mon Sep 17 00:00:00 2001 From: Dexuan Cui Date: Mon, 17 Sep 2018 04:14:54 +0000 Subject: [PATCH 1458/1762] Drivers: hv: vmbus: Use get/put_cpu() in vmbus_connect() With CONFIG_DEBUG_PREEMPT=y, I always see this warning: BUG: using smp_processor_id() in preemptible [00000000] Fix the false warning by using get/put_cpu(). Here vmbus_connect() sends a message to the host and waits for the host's response. The host will deliver the response message and an interrupt on CPU msg->target_vcpu, and later the interrupt handler will wake up vmbus_connect(). vmbus_connect() doesn't really have to run on the same cpu as CPU msg->target_vcpu, so it's safe to call put_cpu() just here. Signed-off-by: Dexuan Cui Cc: stable@vger.kernel.org Cc: K. Y. Srinivasan Cc: Haiyang Zhang Cc: Stephen Hemminger Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- drivers/hv/connection.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c index ced041899456..f4d08c8ac7f8 100644 --- a/drivers/hv/connection.c +++ b/drivers/hv/connection.c @@ -76,6 +76,7 @@ static int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo, __u32 version) { int ret = 0; + unsigned int cur_cpu; struct vmbus_channel_initiate_contact *msg; unsigned long flags; @@ -118,9 +119,10 @@ static int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo, * the CPU attempting to connect may not be CPU 0. */ if (version >= VERSION_WIN8_1) { - msg->target_vcpu = - hv_cpu_number_to_vp_number(smp_processor_id()); - vmbus_connection.connect_cpu = smp_processor_id(); + cur_cpu = get_cpu(); + msg->target_vcpu = hv_cpu_number_to_vp_number(cur_cpu); + vmbus_connection.connect_cpu = cur_cpu; + put_cpu(); } else { msg->target_vcpu = 0; vmbus_connection.connect_cpu = 0; From 34bd283396af1f05c43fa64d51378d38affb1cf1 Mon Sep 17 00:00:00 2001 From: Alan Tull Date: Wed, 12 Sep 2018 09:43:23 -0500 Subject: [PATCH 1459/1762] fpga: do not access region struct after fpga_region_unregister A couple drivers were accessing the region struct after it had been freed. Save off the pointer to the mgr before the region struct gets freed. Signed-off-by: Alan Tull Acked-by: Moritz Fischer Signed-off-by: Greg Kroah-Hartman --- drivers/fpga/dfl-fme-region.c | 4 +++- drivers/fpga/of-fpga-region.c | 3 ++- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/fpga/dfl-fme-region.c b/drivers/fpga/dfl-fme-region.c index 0b7e19c27c6d..51a5ac2293a7 100644 --- a/drivers/fpga/dfl-fme-region.c +++ b/drivers/fpga/dfl-fme-region.c @@ -14,6 +14,7 @@ */ #include +#include #include #include "dfl-fme-pr.h" @@ -66,9 +67,10 @@ eprobe_mgr_put: static int fme_region_remove(struct platform_device *pdev) { struct fpga_region *region = dev_get_drvdata(&pdev->dev); + struct fpga_manager *mgr = region->mgr; fpga_region_unregister(region); - fpga_mgr_put(region->mgr); + fpga_mgr_put(mgr); return 0; } diff --git a/drivers/fpga/of-fpga-region.c b/drivers/fpga/of-fpga-region.c index 35fabb8083fb..052a1342ab7e 100644 --- a/drivers/fpga/of-fpga-region.c +++ b/drivers/fpga/of-fpga-region.c @@ -437,9 +437,10 @@ eprobe_mgr_put: static int of_fpga_region_remove(struct platform_device *pdev) { struct fpga_region *region = platform_get_drvdata(pdev); + struct fpga_manager *mgr = region->mgr; fpga_region_unregister(region); - fpga_mgr_put(region->mgr); + fpga_mgr_put(mgr); return 0; } From c2d68afba86d1ff01e7300c68bc16a9234dcd8e9 Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Mon, 17 Sep 2018 04:14:55 +0000 Subject: [PATCH 1460/1762] tools: hv: fcopy: set 'error' in case an unknown operation was requested 'error' variable is left uninitialized in case we see an unknown operation. As we don't immediately return and proceed to pwrite() we need to set it to something, HV_E_FAIL sounds good enough. Signed-off-by: Vitaly Kuznetsov Signed-off-by: K. Y. Srinivasan Cc: stable Signed-off-by: Greg Kroah-Hartman --- tools/hv/hv_fcopy_daemon.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/hv/hv_fcopy_daemon.c b/tools/hv/hv_fcopy_daemon.c index d78aed86af09..8ff8cb1a11f4 100644 --- a/tools/hv/hv_fcopy_daemon.c +++ b/tools/hv/hv_fcopy_daemon.c @@ -234,6 +234,7 @@ int main(int argc, char *argv[]) break; default: + error = HV_E_FAIL; syslog(LOG_ERR, "Unknown operation: %d", buffer.hdr.operation); From b4d9a0e5ca139640a45bcda87bc718f85d8008af Mon Sep 17 00:00:00 2001 From: Alan Tull Date: Wed, 12 Sep 2018 09:43:24 -0500 Subject: [PATCH 1461/1762] fpga: bridge: fix obvious function documentation error fpga_bridge_dev_match() returns a FPGA bridge struct, not a FPGA manager struct so s/manager/bridge/. Signed-off-by: Alan Tull Acked-by: Moritz Fischer Signed-off-by: Greg Kroah-Hartman --- drivers/fpga/fpga-bridge.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/fpga/fpga-bridge.c b/drivers/fpga/fpga-bridge.c index 24b8f98b73ec..c983dac97501 100644 --- a/drivers/fpga/fpga-bridge.c +++ b/drivers/fpga/fpga-bridge.c @@ -125,7 +125,7 @@ static int fpga_bridge_dev_match(struct device *dev, const void *data) * * Given a device, get an exclusive reference to a fpga bridge. * - * Return: fpga manager struct or IS_ERR() condition containing error code. + * Return: fpga bridge struct or IS_ERR() condition containing error code. */ struct fpga_bridge *fpga_bridge_get(struct device *dev, struct fpga_image_info *info) From 492ecf6d6598e7c3b0b1372653ed21da50ddfb09 Mon Sep 17 00:00:00 2001 From: Alan Tull Date: Wed, 12 Sep 2018 09:43:25 -0500 Subject: [PATCH 1462/1762] docs: fpga: document fpga manager flags Add flags #defines to kerneldoc documentation in a useful place. Signed-off-by: Alan Tull Acked-by: Moritz Fischer Signed-off-by: Greg Kroah-Hartman --- Documentation/driver-api/fpga/fpga-mgr.rst | 5 +++++ include/linux/fpga/fpga-mgr.h | 20 ++++++++++++++------ 2 files changed, 19 insertions(+), 6 deletions(-) diff --git a/Documentation/driver-api/fpga/fpga-mgr.rst b/Documentation/driver-api/fpga/fpga-mgr.rst index 4b3825da48d9..82b6dbbd31cd 100644 --- a/Documentation/driver-api/fpga/fpga-mgr.rst +++ b/Documentation/driver-api/fpga/fpga-mgr.rst @@ -184,6 +184,11 @@ API for implementing a new FPGA Manager driver API for programming an FPGA --------------------------- +FPGA Manager flags + +.. kernel-doc:: include/linux/fpga/fpga-mgr.h + :doc: FPGA Manager flags + .. kernel-doc:: include/linux/fpga/fpga-mgr.h :functions: fpga_image_info diff --git a/include/linux/fpga/fpga-mgr.h b/include/linux/fpga/fpga-mgr.h index 8942e61f0028..8ab5df769923 100644 --- a/include/linux/fpga/fpga-mgr.h +++ b/include/linux/fpga/fpga-mgr.h @@ -53,12 +53,20 @@ enum fpga_mgr_states { FPGA_MGR_STATE_OPERATING, }; -/* - * FPGA Manager flags - * FPGA_MGR_PARTIAL_RECONFIG: do partial reconfiguration if supported - * FPGA_MGR_EXTERNAL_CONFIG: FPGA has been configured prior to Linux booting - * FPGA_MGR_BITSTREAM_LSB_FIRST: SPI bitstream bit order is LSB first - * FPGA_MGR_COMPRESSED_BITSTREAM: FPGA bitstream is compressed +/** + * DOC: FPGA Manager flags + * + * Flags used in the &fpga_image_info->flags field + * + * %FPGA_MGR_PARTIAL_RECONFIG: do partial reconfiguration if supported + * + * %FPGA_MGR_EXTERNAL_CONFIG: FPGA has been configured prior to Linux booting + * + * %FPGA_MGR_ENCRYPTED_BITSTREAM: indicates bitstream is encrypted + * + * %FPGA_MGR_BITSTREAM_LSB_FIRST: SPI bitstream bit order is LSB first + * + * %FPGA_MGR_COMPRESSED_BITSTREAM: FPGA bitstream is compressed */ #define FPGA_MGR_PARTIAL_RECONFIG BIT(0) #define FPGA_MGR_EXTERNAL_CONFIG BIT(1) From 7012040576c6ae25a47035659ee48673612c2c27 Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Wed, 19 Sep 2018 18:09:38 -0700 Subject: [PATCH 1463/1762] firmware: Always initialize the fw_priv list object When freeing the fw_priv the item is taken off the list. This causes an oops in the FW_OPT_NOCACHE case as the list object is not initialized. Make sure to initialize the list object regardless of this flag. Fixes: 422b3db2a503 ("firmware: Fix security issue with request_firmware_into_buf()") Cc: stable@vger.kernel.org Cc: Rishabh Bhatnagar Signed-off-by: Bjorn Andersson Reviewed-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/base/firmware_loader/main.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c index b3c0498ee433..8e9213b36e31 100644 --- a/drivers/base/firmware_loader/main.c +++ b/drivers/base/firmware_loader/main.c @@ -226,8 +226,11 @@ static int alloc_lookup_fw_priv(const char *fw_name, } tmp = __allocate_fw_priv(fw_name, fwc, dbuf, size); - if (tmp && !(opt_flags & FW_OPT_NOCACHE)) - list_add(&tmp->list, &fwc->head); + if (tmp) { + INIT_LIST_HEAD(&tmp->list); + if (!(opt_flags & FW_OPT_NOCACHE)) + list_add(&tmp->list, &fwc->head); + } spin_unlock(&fwc->lock); *fw_priv = tmp; From bac6f6cda206ad7cbe0c73c35e494377ce9c4749 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 28 Sep 2018 15:17:50 -0700 Subject: [PATCH 1464/1762] pstore/ram: Fix failure-path memory leak in ramoops_init As reported by nixiaoming, with some minor clarifications: 1) memory leak in ramoops_register_dummy(): dummy_data = kzalloc(sizeof(*dummy_data), GFP_KERNEL); but no kfree() if platform_device_register_data() fails. 2) memory leak in ramoops_init(): Missing platform_device_unregister(dummy) and kfree(dummy_data) if platform_driver_register(&ramoops_driver) fails. I've clarified the purpose of ramoops_register_dummy(), and added a common cleanup routine for all three failure paths to call. Reported-by: nixiaoming Cc: stable@vger.kernel.org Cc: Anton Vorontsov Cc: Colin Cross Cc: Tony Luck Cc: Joel Fernandes Cc: Geliang Tang Signed-off-by: Kees Cook --- fs/pstore/ram.c | 29 +++++++++++++++++++++++++---- 1 file changed, 25 insertions(+), 4 deletions(-) diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index bbd1e357c23d..f4fd2e72add4 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -898,8 +898,22 @@ static struct platform_driver ramoops_driver = { }, }; -static void ramoops_register_dummy(void) +static inline void ramoops_unregister_dummy(void) { + platform_device_unregister(dummy); + dummy = NULL; + + kfree(dummy_data); + dummy_data = NULL; +} + +static void __init ramoops_register_dummy(void) +{ + /* + * Prepare a dummy platform data structure to carry the module + * parameters. If mem_size isn't set, then there are no module + * parameters, and we can skip this. + */ if (!mem_size) return; @@ -932,21 +946,28 @@ static void ramoops_register_dummy(void) if (IS_ERR(dummy)) { pr_info("could not create platform device: %ld\n", PTR_ERR(dummy)); + dummy = NULL; + ramoops_unregister_dummy(); } } static int __init ramoops_init(void) { + int ret; + ramoops_register_dummy(); - return platform_driver_register(&ramoops_driver); + ret = platform_driver_register(&ramoops_driver); + if (ret != 0) + ramoops_unregister_dummy(); + + return ret; } late_initcall(ramoops_init); static void __exit ramoops_exit(void) { platform_driver_unregister(&ramoops_driver); - platform_device_unregister(dummy); - kfree(dummy_data); + ramoops_unregister_dummy(); } module_exit(ramoops_exit); From e55ec4ddbef9897199c307dfb23167e3801fdaf5 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 1 Oct 2018 08:11:07 +1000 Subject: [PATCH 1465/1762] xfs: fix error handling in xfs_bmap_extents_to_btree Commit 01239d77b9dd ("xfs: fix a null pointer dereference in xfs_bmap_extents_to_btree") attempted to fix a null pointer dreference when a fuzzing corruption of some kind was found. This fix was flawed, resulting in assert failures like: XFS: Assertion failed: ifp->if_broot == NULL, file: fs/xfs/libxfs/xfs_bmap.c, line: 715 ..... Call Trace: xfs_bmap_extents_to_btree+0x6b9/0x7b0 __xfs_bunmapi+0xae7/0xf00 ? xfs_log_reserve+0x1c8/0x290 xfs_reflink_remap_extent+0x20b/0x620 xfs_reflink_remap_blocks+0x7e/0x290 xfs_reflink_remap_range+0x311/0x530 vfs_dedupe_file_range_one+0xd7/0xe0 vfs_dedupe_file_range+0x15b/0x1a0 do_vfs_ioctl+0x267/0x6c0 The problem is that the error handling code now asserts that the inode fork is not in btree format before the error handling code undoes the modifications that put the fork back in extent format. Fix this by moving the assert back to after the xfs_iroot_realloc() call that returns the fork to extent format, and clean up the jump labels to be meaningful. Also, returning ENOSPC when xfs_btree_get_bufl() fails to instantiate the buffer that was allocated (the actual fix in the commit mentioned above) is incorrect. This is a fatal error - only an invalid block address or a filesystem shutdown can result in failing to get a buffer here. Hence change this to EFSCORRUPTED so that the higher layer knows this was a corruption related failure and should not treat it as an ENOSPC error. This should result in a shutdown (via cancelling a dirty transaction) which is necessary as we do not attempt to clean up the (invalid) block that we have already allocated. Signed-off-by: Dave Chinner Reviewed-by: Darrick J. Wong Signed-off-by: Dave Chinner --- fs/xfs/libxfs/xfs_bmap.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 2760314fdf7f..a47670332326 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -673,7 +673,8 @@ xfs_bmap_extents_to_btree( ASSERT(XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS); /* - * Make space in the inode incore. + * Make space in the inode incore. This needs to be undone if we fail + * to expand the root. */ xfs_iroot_realloc(ip, 1, whichfork); ifp->if_flags |= XFS_IFBROOT; @@ -711,16 +712,15 @@ xfs_bmap_extents_to_btree( args.minlen = args.maxlen = args.prod = 1; args.wasdel = wasdel; *logflagsp = 0; - if ((error = xfs_alloc_vextent(&args))) { - ASSERT(ifp->if_broot == NULL); - goto err1; - } + error = xfs_alloc_vextent(&args); + if (error) + goto out_root_realloc; if (WARN_ON_ONCE(args.fsbno == NULLFSBLOCK)) { - ASSERT(ifp->if_broot == NULL); error = -ENOSPC; - goto err1; + goto out_root_realloc; } + /* * Allocation can't fail, the space was reserved. */ @@ -732,9 +732,10 @@ xfs_bmap_extents_to_btree( xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_BCOUNT, 1L); abp = xfs_btree_get_bufl(mp, tp, args.fsbno, 0); if (!abp) { - error = -ENOSPC; - goto err2; + error = -EFSCORRUPTED; + goto out_unreserve_dquot; } + /* * Fill in the child block. */ @@ -775,11 +776,12 @@ xfs_bmap_extents_to_btree( *logflagsp = XFS_ILOG_CORE | xfs_ilog_fbroot(whichfork); return 0; -err2: +out_unreserve_dquot: xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_BCOUNT, -1L); -err1: +out_root_realloc: xfs_iroot_realloc(ip, -1, whichfork); XFS_IFORK_FMT_SET(ip, whichfork, XFS_DINODE_FMT_EXTENTS); + ASSERT(ifp->if_broot == NULL); xfs_btree_del_cursor(cur, XFS_BTREE_ERROR); return error; From 08d9db00fe0e300d6df976e6c294f974988226dd Mon Sep 17 00:00:00 2001 From: Edgar Cherkasov Date: Thu, 27 Sep 2018 11:56:03 +0300 Subject: [PATCH 1466/1762] i2c: i2c-scmi: fix for i2c_smbus_write_block_data The i2c-scmi driver crashes when the SMBus Write Block transaction is executed: WARNING: CPU: 9 PID: 2194 at mm/page_alloc.c:3931 __alloc_pages_slowpath+0x9db/0xec0 Call Trace: ? get_page_from_freelist+0x49d/0x11f0 ? alloc_pages_current+0x6a/0xe0 ? new_slab+0x499/0x690 __alloc_pages_nodemask+0x265/0x280 alloc_pages_current+0x6a/0xe0 kmalloc_order+0x18/0x40 kmalloc_order_trace+0x24/0xb0 ? acpi_ut_allocate_object_desc_dbg+0x62/0x10c __kmalloc+0x203/0x220 acpi_os_allocate_zeroed+0x34/0x36 acpi_ut_copy_eobject_to_iobject+0x266/0x31e acpi_evaluate_object+0x166/0x3b2 acpi_smbus_cmi_access+0x144/0x530 [i2c_scmi] i2c_smbus_xfer+0xda/0x370 i2cdev_ioctl_smbus+0x1bd/0x270 i2cdev_ioctl+0xaa/0x250 do_vfs_ioctl+0xa4/0x600 SyS_ioctl+0x79/0x90 do_syscall_64+0x73/0x130 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 ACPI Error: Evaluating _SBW: 4 (20170831/smbus_cmi-185) This problem occurs because the length of ACPI Buffer object is not defined/initialized in the code before a corresponding ACPI method is called. The obvious patch below fixes this issue. Signed-off-by: Edgar Cherkasov Acked-by: Viktor Krasnov Acked-by: Michael Brunner Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-scmi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/i2c/busses/i2c-scmi.c b/drivers/i2c/busses/i2c-scmi.c index a01389b85f13..7e9a2bbf5ddc 100644 --- a/drivers/i2c/busses/i2c-scmi.c +++ b/drivers/i2c/busses/i2c-scmi.c @@ -152,6 +152,7 @@ acpi_smbus_cmi_access(struct i2c_adapter *adap, u16 addr, unsigned short flags, mt_params[3].type = ACPI_TYPE_INTEGER; mt_params[3].integer.value = len; mt_params[4].type = ACPI_TYPE_BUFFER; + mt_params[4].buffer.length = len; mt_params[4].buffer.pointer = data->block + 1; } break; From 1feda5eb77fc279a4c4eb93b9a0ac3bf7254b57a Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Fri, 28 Sep 2018 18:09:23 +0200 Subject: [PATCH 1467/1762] drm/exynos: Use selected dma_dev default iommu domain instead of a fake one Instead of allocating a fake IOMMU domain for all Exynos DRM components, simply reuse the default IOMMU domain of the already selected DMA device. This allows some design changes in IOMMU framework without breaking IOMMU support in Exynos DRM. Signed-off-by: Marek Szyprowski Reviewed-by: Robin Murphy Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_iommu.h | 34 ++++------------------- 1 file changed, 6 insertions(+), 28 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_iommu.h b/drivers/gpu/drm/exynos/exynos_drm_iommu.h index 87f6b5672e11..797d9ee5f15a 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_iommu.h +++ b/drivers/gpu/drm/exynos/exynos_drm_iommu.h @@ -55,37 +55,12 @@ static inline void __exynos_iommu_detach(struct exynos_drm_private *priv, static inline int __exynos_iommu_create_mapping(struct exynos_drm_private *priv, unsigned long start, unsigned long size) { - struct iommu_domain *domain; - int ret; - - domain = iommu_domain_alloc(priv->dma_dev->bus); - if (!domain) - return -ENOMEM; - - ret = iommu_get_dma_cookie(domain); - if (ret) - goto free_domain; - - ret = iommu_dma_init_domain(domain, start, size, NULL); - if (ret) - goto put_cookie; - - priv->mapping = domain; + priv->mapping = iommu_get_domain_for_dev(priv->dma_dev); return 0; - -put_cookie: - iommu_put_dma_cookie(domain); -free_domain: - iommu_domain_free(domain); - return ret; } static inline void __exynos_iommu_release_mapping(struct exynos_drm_private *priv) { - struct iommu_domain *domain = priv->mapping; - - iommu_put_dma_cookie(domain); - iommu_domain_free(domain); priv->mapping = NULL; } @@ -94,7 +69,9 @@ static inline int __exynos_iommu_attach(struct exynos_drm_private *priv, { struct iommu_domain *domain = priv->mapping; - return iommu_attach_device(domain, dev); + if (dev != priv->dma_dev) + return iommu_attach_device(domain, dev); + return 0; } static inline void __exynos_iommu_detach(struct exynos_drm_private *priv, @@ -102,7 +79,8 @@ static inline void __exynos_iommu_detach(struct exynos_drm_private *priv, { struct iommu_domain *domain = priv->mapping; - iommu_detach_device(domain, dev); + if (dev != priv->dma_dev) + iommu_detach_device(domain, dev); } #else #error Unsupported architecture and IOMMU/DMA-mapping glue code From 848e616e66d4592fe9afc40743d3504deb7632b4 Mon Sep 17 00:00:00 2001 From: Stefan Seyfried Date: Sun, 30 Sep 2018 12:53:00 +0200 Subject: [PATCH 1468/1762] cfg80211: fix wext-compat memory leak cfg80211_wext_giwrate and sinfo.pertid might allocate sinfo.pertid via rdev_get_station(), but never release it. Fix that. Fixes: 8689c051a201 ("cfg80211: dynamically allocate per-tid stats for station info") Signed-off-by: Stefan Seyfried [johannes: fix error path, use cfg80211_sinfo_release_content(), add Fixes] Signed-off-by: Johannes Berg --- net/wireless/wext-compat.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c index 167f7025ac98..06943d9c9835 100644 --- a/net/wireless/wext-compat.c +++ b/net/wireless/wext-compat.c @@ -1278,12 +1278,16 @@ static int cfg80211_wext_giwrate(struct net_device *dev, if (err) return err; - if (!(sinfo.filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE))) - return -EOPNOTSUPP; + if (!(sinfo.filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE))) { + err = -EOPNOTSUPP; + goto free; + } rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate); - return 0; +free: + cfg80211_sinfo_release_content(&sinfo); + return err; } /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ @@ -1293,7 +1297,7 @@ static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); /* we are under RTNL - globally locked - so can use static structs */ static struct iw_statistics wstats; - static struct station_info sinfo; + static struct station_info sinfo = {}; u8 bssid[ETH_ALEN]; if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) @@ -1352,6 +1356,8 @@ static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_TX_FAILED)) wstats.discard.retries = sinfo.tx_failed; + cfg80211_sinfo_release_content(&sinfo); + return &wstats; } From 211710ca74adf790b46ab3867fcce8047b573cd1 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 29 Sep 2018 16:01:58 +0200 Subject: [PATCH 1469/1762] mac80211: fix setting IEEE80211_KEY_FLAG_RX_MGMT for AP mode keys key->sta is only valid after ieee80211_key_link, which is called later in this function. Because of that, the IEEE80211_KEY_FLAG_RX_MGMT is never set when management frame protection is enabled. Fixes: e548c49e6dc6b ("mac80211: add key flag for management keys") Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: Johannes Berg --- net/mac80211/cfg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index d25da0e66da1..5d22eda8a6b1 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -427,7 +427,7 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, case NL80211_IFTYPE_AP: case NL80211_IFTYPE_AP_VLAN: /* Keys without a station are used for TX only */ - if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP)) + if (sta && test_sta_flag(sta, WLAN_STA_MFP)) key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; break; case NL80211_IFTYPE_ADHOC: From 1db58529454742f67ebd96e3588315e880b72837 Mon Sep 17 00:00:00 2001 From: Yu Zhao Date: Thu, 27 Sep 2018 17:05:04 -0600 Subject: [PATCH 1470/1762] cfg80211: fix use-after-free in reg_process_hint() reg_process_hint_country_ie() can free regulatory_request and return REG_REQ_ALREADY_SET. We shouldn't use regulatory_request after it's called. KASAN error was observed when this happens. BUG: KASAN: use-after-free in reg_process_hint+0x839/0x8aa [cfg80211] Read of size 4 at addr ffff8800c430d434 by task kworker/1:3/89 Workqueue: events reg_todo [cfg80211] Call Trace: dump_stack+0xc1/0x10c ? _atomic_dec_and_lock+0x1ad/0x1ad ? _raw_spin_lock_irqsave+0xa0/0xd2 print_address_description+0x86/0x26f ? reg_process_hint+0x839/0x8aa [cfg80211] kasan_report+0x241/0x29b reg_process_hint+0x839/0x8aa [cfg80211] reg_todo+0x204/0x5b9 [cfg80211] process_one_work+0x55f/0x8d0 ? worker_detach_from_pool+0x1b5/0x1b5 ? _raw_spin_unlock_irq+0x65/0xdd ? _raw_spin_unlock_irqrestore+0xf3/0xf3 worker_thread+0x5dd/0x841 ? kthread_parkme+0x1d/0x1d kthread+0x270/0x285 ? pr_cont_work+0xe3/0xe3 ? rcu_read_unlock_sched_notrace+0xca/0xca ret_from_fork+0x22/0x40 Allocated by task 2718: set_track+0x63/0xfa __kmalloc+0x119/0x1ac regulatory_hint_country_ie+0x38/0x329 [cfg80211] __cfg80211_connect_result+0x854/0xadd [cfg80211] cfg80211_rx_assoc_resp+0x3bc/0x4f0 [cfg80211] smsc95xx v1.0.6 ieee80211_sta_rx_queued_mgmt+0x1803/0x7ed5 [mac80211] ieee80211_iface_work+0x411/0x696 [mac80211] process_one_work+0x55f/0x8d0 worker_thread+0x5dd/0x841 kthread+0x270/0x285 ret_from_fork+0x22/0x40 Freed by task 89: set_track+0x63/0xfa kasan_slab_free+0x6a/0x87 kfree+0xdc/0x470 reg_process_hint+0x31e/0x8aa [cfg80211] reg_todo+0x204/0x5b9 [cfg80211] process_one_work+0x55f/0x8d0 worker_thread+0x5dd/0x841 kthread+0x270/0x285 ret_from_fork+0x22/0x40 Signed-off-by: Yu Zhao Signed-off-by: Johannes Berg --- net/wireless/reg.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 765dedb12361..24cfa2776f50 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -2661,11 +2661,12 @@ static void reg_process_hint(struct regulatory_request *reg_request) { struct wiphy *wiphy = NULL; enum reg_request_treatment treatment; + enum nl80211_reg_initiator initiator = reg_request->initiator; if (reg_request->wiphy_idx != WIPHY_IDX_INVALID) wiphy = wiphy_idx_to_wiphy(reg_request->wiphy_idx); - switch (reg_request->initiator) { + switch (initiator) { case NL80211_REGDOM_SET_BY_CORE: treatment = reg_process_hint_core(reg_request); break; @@ -2683,7 +2684,7 @@ static void reg_process_hint(struct regulatory_request *reg_request) treatment = reg_process_hint_country_ie(wiphy, reg_request); break; default: - WARN(1, "invalid initiator %d\n", reg_request->initiator); + WARN(1, "invalid initiator %d\n", initiator); goto out_free; } @@ -2698,7 +2699,7 @@ static void reg_process_hint(struct regulatory_request *reg_request) */ if (treatment == REG_REQ_ALREADY_SET && wiphy && wiphy->regulatory_flags & REGULATORY_STRICT_REG) { - wiphy_update_regulatory(wiphy, reg_request->initiator); + wiphy_update_regulatory(wiphy, initiator); wiphy_all_share_dfs_chan_state(wiphy); reg_check_channels(); } From d26c25a9d19b5976b319af528886f89cf455692d Mon Sep 17 00:00:00 2001 From: Dave Martin Date: Thu, 27 Sep 2018 16:53:21 +0100 Subject: [PATCH 1471/1762] arm64: KVM: Tighten guest core register access from userspace We currently allow userspace to access the core register file in about any possible way, including straddling multiple registers and doing unaligned accesses. This is not the expected use of the ABI, and nobody is actually using it that way. Let's tighten it by explicitly checking the size and alignment for each field of the register file. Cc: Fixes: 2f4a07c5f9fe ("arm64: KVM: guest one-reg interface") Reviewed-by: Christoffer Dall Reviewed-by: Mark Rutland Signed-off-by: Dave Martin [maz: rewrote Dave's initial patch to be more easily backported] Signed-off-by: Marc Zyngier Signed-off-by: Will Deacon --- arch/arm64/kvm/guest.c | 45 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index 07256b08226c..3088463bafc1 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -57,6 +57,45 @@ static u64 core_reg_offset_from_id(u64 id) return id & ~(KVM_REG_ARCH_MASK | KVM_REG_SIZE_MASK | KVM_REG_ARM_CORE); } +static int validate_core_offset(const struct kvm_one_reg *reg) +{ + u64 off = core_reg_offset_from_id(reg->id); + int size; + + switch (off) { + case KVM_REG_ARM_CORE_REG(regs.regs[0]) ... + KVM_REG_ARM_CORE_REG(regs.regs[30]): + case KVM_REG_ARM_CORE_REG(regs.sp): + case KVM_REG_ARM_CORE_REG(regs.pc): + case KVM_REG_ARM_CORE_REG(regs.pstate): + case KVM_REG_ARM_CORE_REG(sp_el1): + case KVM_REG_ARM_CORE_REG(elr_el1): + case KVM_REG_ARM_CORE_REG(spsr[0]) ... + KVM_REG_ARM_CORE_REG(spsr[KVM_NR_SPSR - 1]): + size = sizeof(__u64); + break; + + case KVM_REG_ARM_CORE_REG(fp_regs.vregs[0]) ... + KVM_REG_ARM_CORE_REG(fp_regs.vregs[31]): + size = sizeof(__uint128_t); + break; + + case KVM_REG_ARM_CORE_REG(fp_regs.fpsr): + case KVM_REG_ARM_CORE_REG(fp_regs.fpcr): + size = sizeof(__u32); + break; + + default: + return -EINVAL; + } + + if (KVM_REG_SIZE(reg->id) == size && + IS_ALIGNED(off, size / sizeof(__u32))) + return 0; + + return -EINVAL; +} + static int get_core_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg) { /* @@ -76,6 +115,9 @@ static int get_core_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg) (off + (KVM_REG_SIZE(reg->id) / sizeof(__u32))) >= nr_regs) return -ENOENT; + if (validate_core_offset(reg)) + return -EINVAL; + if (copy_to_user(uaddr, ((u32 *)regs) + off, KVM_REG_SIZE(reg->id))) return -EFAULT; @@ -98,6 +140,9 @@ static int set_core_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg) (off + (KVM_REG_SIZE(reg->id) / sizeof(__u32))) >= nr_regs) return -ENOENT; + if (validate_core_offset(reg)) + return -EINVAL; + if (KVM_REG_SIZE(reg->id) > sizeof(tmp)) return -EINVAL; From 2a3f93459d689d990b3ecfbe782fec89b97d3279 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Thu, 27 Sep 2018 16:53:22 +0100 Subject: [PATCH 1472/1762] arm64: KVM: Sanitize PSTATE.M when being set from userspace Not all execution modes are valid for a guest, and some of them depend on what the HW actually supports. Let's verify that what userspace provides is compatible with both the VM settings and the HW capabilities. Cc: Fixes: 0d854a60b1d7 ("arm64: KVM: enable initialization of a 32bit vcpu") Reviewed-by: Christoffer Dall Reviewed-by: Mark Rutland Reviewed-by: Dave Martin Signed-off-by: Marc Zyngier Signed-off-by: Will Deacon --- arch/arm64/kvm/guest.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index 3088463bafc1..a6c9fbaeaefc 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -152,17 +152,25 @@ static int set_core_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg) } if (off == KVM_REG_ARM_CORE_REG(regs.pstate)) { - u32 mode = (*(u32 *)valp) & PSR_AA32_MODE_MASK; + u64 mode = (*(u64 *)valp) & PSR_AA32_MODE_MASK; switch (mode) { case PSR_AA32_MODE_USR: + if (!system_supports_32bit_el0()) + return -EINVAL; + break; case PSR_AA32_MODE_FIQ: case PSR_AA32_MODE_IRQ: case PSR_AA32_MODE_SVC: case PSR_AA32_MODE_ABT: case PSR_AA32_MODE_UND: + if (!vcpu_el1_is_32bit(vcpu)) + return -EINVAL; + break; case PSR_MODE_EL0t: case PSR_MODE_EL1t: case PSR_MODE_EL1h: + if (vcpu_el1_is_32bit(vcpu)) + return -EINVAL; break; default: err = -EINVAL; From 5f76f6f5ff96587af5acd5930f7d9fea81e0d1a8 Mon Sep 17 00:00:00 2001 From: Liran Alon Date: Fri, 14 Sep 2018 03:25:52 +0300 Subject: [PATCH 1473/1762] KVM: nVMX: Do not expose MPX VMX controls when guest MPX disabled Before this commit, KVM exposes MPX VMX controls to L1 guest only based on if KVM and host processor supports MPX virtualization. However, these controls should be exposed to guest only in case guest vCPU supports MPX. Without this change, a L1 guest running with kernel which don't have commit 691bd4340bef ("kvm: vmx: allow host to access guest MSR_IA32_BNDCFGS") asserts in QEMU on the following: qemu-kvm: error: failed to set MSR 0xd90 to 0x0 qemu-kvm: .../qemu-2.10.0/target/i386/kvm.c:1801 kvm_put_msrs: Assertion 'ret == cpu->kvm_msr_buf->nmsrs failed' This is because L1 KVM kvm_init_msr_list() will see that vmx_mpx_supported() (As it only checks MPX VMX controls support) and therefore KVM_GET_MSR_INDEX_LIST IOCTL will include MSR_IA32_BNDCFGS. However, later when L1 will attempt to set this MSR via KVM_SET_MSRS IOCTL, it will fail because !guest_cpuid_has_mpx(vcpu). Therefore, fix the issue by exposing MPX VMX controls to L1 guest only when vCPU supports MPX. Fixes: 36be0b9deb23 ("KVM: x86: Add nested virtualization support for MPX") Reported-by: Eyal Moscovici Reviewed-by: Nikita Leshchenko Reviewed-by: Darren Kenny Signed-off-by: Liran Alon Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 8b066480224b..d32e9c5e743b 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -3525,9 +3525,6 @@ static void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, bool apicv) VM_EXIT_LOAD_IA32_EFER | VM_EXIT_SAVE_IA32_EFER | VM_EXIT_SAVE_VMX_PREEMPTION_TIMER | VM_EXIT_ACK_INTR_ON_EXIT; - if (kvm_mpx_supported()) - msrs->exit_ctls_high |= VM_EXIT_CLEAR_BNDCFGS; - /* We support free control of debug control saving. */ msrs->exit_ctls_low &= ~VM_EXIT_SAVE_DEBUG_CONTROLS; @@ -3544,8 +3541,6 @@ static void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, bool apicv) VM_ENTRY_LOAD_IA32_PAT; msrs->entry_ctls_high |= (VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR | VM_ENTRY_LOAD_IA32_EFER); - if (kvm_mpx_supported()) - msrs->entry_ctls_high |= VM_ENTRY_LOAD_BNDCFGS; /* We support free control of debug control loading. */ msrs->entry_ctls_low &= ~VM_ENTRY_LOAD_DEBUG_CONTROLS; @@ -11237,6 +11232,23 @@ static void nested_vmx_cr_fixed1_bits_update(struct kvm_vcpu *vcpu) #undef cr4_fixed1_update } +static void nested_vmx_entry_exit_ctls_update(struct kvm_vcpu *vcpu) +{ + struct vcpu_vmx *vmx = to_vmx(vcpu); + + if (kvm_mpx_supported()) { + bool mpx_enabled = guest_cpuid_has(vcpu, X86_FEATURE_MPX); + + if (mpx_enabled) { + vmx->nested.msrs.entry_ctls_high |= VM_ENTRY_LOAD_BNDCFGS; + vmx->nested.msrs.exit_ctls_high |= VM_EXIT_CLEAR_BNDCFGS; + } else { + vmx->nested.msrs.entry_ctls_high &= ~VM_ENTRY_LOAD_BNDCFGS; + vmx->nested.msrs.exit_ctls_high &= ~VM_EXIT_CLEAR_BNDCFGS; + } + } +} + static void vmx_cpuid_update(struct kvm_vcpu *vcpu) { struct vcpu_vmx *vmx = to_vmx(vcpu); @@ -11253,8 +11265,10 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu) to_vmx(vcpu)->msr_ia32_feature_control_valid_bits &= ~FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX; - if (nested_vmx_allowed(vcpu)) + if (nested_vmx_allowed(vcpu)) { nested_vmx_cr_fixed1_bits_update(vcpu); + nested_vmx_entry_exit_ctls_update(vcpu); + } } static void vmx_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry) From 503234b3fdcaa578395c07e393ea3e5d13958824 Mon Sep 17 00:00:00 2001 From: Liran Alon Date: Fri, 14 Sep 2018 03:25:53 +0300 Subject: [PATCH 1474/1762] KVM: x86: Do not use kvm_x86_ops->mpx_supported() directly Commit a87036add092 ("KVM: x86: disable MPX if host did not enable MPX XSAVE features") introduced kvm_mpx_supported() to return true iff MPX is enabled in the host. However, that commit seems to have missed replacing some calls to kvm_x86_ops->mpx_supported() to kvm_mpx_supported(). Complete original commit by replacing remaining calls to kvm_mpx_supported(). Fixes: a87036add092 ("KVM: x86: disable MPX if host did not enable MPX XSAVE features") Suggested-by: Sean Christopherson Signed-off-by: Liran Alon Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 2 +- arch/x86/kvm/x86.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index d32e9c5e743b..5bb2acd8a52c 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -12036,7 +12036,7 @@ static void prepare_vmcs02_full(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12) set_cr4_guest_host_mask(vmx); - if (vmx_mpx_supported()) + if (kvm_mpx_supported()) vmcs_write64(GUEST_BNDCFGS, vmcs12->guest_bndcfgs); if (enable_vpid) { diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index edbf00ec56b3..ca717737347e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4698,7 +4698,7 @@ static void kvm_init_msr_list(void) */ switch (msrs_to_save[i]) { case MSR_IA32_BNDCFGS: - if (!kvm_x86_ops->mpx_supported()) + if (!kvm_mpx_supported()) continue; break; case MSR_TSC_AUX: From 62cf9bd8118c4009f02c477ef78c723f49e53e16 Mon Sep 17 00:00:00 2001 From: Liran Alon Date: Fri, 14 Sep 2018 03:25:54 +0300 Subject: [PATCH 1475/1762] KVM: nVMX: Fix emulation of VM_ENTRY_LOAD_BNDCFGS L2 IA32_BNDCFGS should be updated with vmcs12->guest_bndcfgs only when VM_ENTRY_LOAD_BNDCFGS is specified in vmcs12->vm_entry_controls. Otherwise, L2 IA32_BNDCFGS should be set to vmcs01->guest_bndcfgs which is L1 IA32_BNDCFGS. Reviewed-by: Nikita Leshchenko Reviewed-by: Darren Kenny Signed-off-by: Liran Alon Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 5bb2acd8a52c..b16b2664cfe1 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -856,6 +856,7 @@ struct nested_vmx { /* to migrate it to L2 if VM_ENTRY_LOAD_DEBUG_CONTROLS is off */ u64 vmcs01_debugctl; + u64 vmcs01_guest_bndcfgs; u16 vpid02; u16 last_vpid; @@ -12036,8 +12037,13 @@ static void prepare_vmcs02_full(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12) set_cr4_guest_host_mask(vmx); - if (kvm_mpx_supported()) - vmcs_write64(GUEST_BNDCFGS, vmcs12->guest_bndcfgs); + if (kvm_mpx_supported()) { + if (vmx->nested.nested_run_pending && + (vmcs12->vm_entry_controls & VM_ENTRY_LOAD_BNDCFGS)) + vmcs_write64(GUEST_BNDCFGS, vmcs12->guest_bndcfgs); + else + vmcs_write64(GUEST_BNDCFGS, vmx->nested.vmcs01_guest_bndcfgs); + } if (enable_vpid) { if (nested_cpu_has_vpid(vmcs12) && vmx->nested.vpid02) @@ -12591,6 +12597,9 @@ static int enter_vmx_non_root_mode(struct kvm_vcpu *vcpu, u32 *exit_qual) if (!(vmcs12->vm_entry_controls & VM_ENTRY_LOAD_DEBUG_CONTROLS)) vmx->nested.vmcs01_debugctl = vmcs_read64(GUEST_IA32_DEBUGCTL); + if (kvm_mpx_supported() && + !(vmcs12->vm_entry_controls & VM_ENTRY_LOAD_BNDCFGS)) + vmx->nested.vmcs01_guest_bndcfgs = vmcs_read64(GUEST_BNDCFGS); vmx_switch_vmcs(vcpu, &vmx->nested.vmcs02); vmx_segment_cache_clear(vmx); From fe804cd6774938814242aa67bb7e7cbc934b1203 Mon Sep 17 00:00:00 2001 From: Stefan Raspl Date: Tue, 25 Sep 2018 09:19:36 +0200 Subject: [PATCH 1476/1762] tools/kvm_stat: cut down decimal places in update interval dialog We currently display the default number of decimal places for floats in _show_set_update_interval(), which is quite pointless. Cutting down to a single decimal place. Signed-off-by: Stefan Raspl Signed-off-by: Paolo Bonzini --- tools/kvm/kvm_stat/kvm_stat | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat index 439b8a27488d..195ba486640f 100755 --- a/tools/kvm/kvm_stat/kvm_stat +++ b/tools/kvm/kvm_stat/kvm_stat @@ -1325,7 +1325,7 @@ class Tui(object): msg = '' while True: self.screen.erase() - self.screen.addstr(0, 0, 'Set update interval (defaults to %fs).' % + self.screen.addstr(0, 0, 'Set update interval (defaults to %.1fs).' % DELAY_DEFAULT, curses.A_BOLD) self.screen.addstr(4, 0, msg) self.screen.addstr(2, 0, 'Change delay from %.1fs to ' % From daa07cbc9ae3da2d61b7ce900c0b9107d134f2c1 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Tue, 25 Sep 2018 13:20:00 -0700 Subject: [PATCH 1477/1762] KVM: x86: fix L1TF's MMIO GFN calculation One defense against L1TF in KVM is to always set the upper five bits of the *legal* physical address in the SPTEs for non-present and reserved SPTEs, e.g. MMIO SPTEs. In the MMIO case, the GFN of the MMIO SPTE may overlap with the upper five bits that are being usurped to defend against L1TF. To preserve the GFN, the bits of the GFN that overlap with the repurposed bits are shifted left into the reserved bits, i.e. the GFN in the SPTE will be split into high and low parts. When retrieving the GFN from the MMIO SPTE, e.g. to check for an MMIO access, get_mmio_spte_gfn() unshifts the affected bits and restores the original GFN for comparison. Unfortunately, get_mmio_spte_gfn() neglects to mask off the reserved bits in the SPTE that were used to store the upper chunk of the GFN. As a result, KVM fails to detect MMIO accesses whose GPA overlaps the repurprosed bits, which in turn causes guest panics and hangs. Fix the bug by generating a mask that covers the lower chunk of the GFN, i.e. the bits that aren't shifted by the L1TF mitigation. The alternative approach would be to explicitly zero the five reserved bits that are used to store the upper chunk of the GFN, but that requires additional run-time computation and makes an already-ugly bit of code even more inscrutable. I considered adding a WARN_ON_ONCE(low_phys_bits-1 <= PAGE_SHIFT) to warn if GENMASK_ULL() generated a nonsensical value, but that seemed silly since that would mean a system that supports VMX has less than 18 bits of physical address space... Reported-by: Sakari Ailus Fixes: d9b47449c1a1 ("kvm: x86: Set highest physical address bits in non-present/reserved SPTEs") Cc: Junaid Shahid Cc: Jim Mattson Cc: stable@vger.kernel.org Reviewed-by: Junaid Shahid Tested-by: Sakari Ailus Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- arch/x86/kvm/mmu.c | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index d7e9bce6ff61..51b953ad9d4e 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -249,6 +249,17 @@ static u64 __read_mostly shadow_nonpresent_or_rsvd_mask; */ static const u64 shadow_nonpresent_or_rsvd_mask_len = 5; +/* + * In some cases, we need to preserve the GFN of a non-present or reserved + * SPTE when we usurp the upper five bits of the physical address space to + * defend against L1TF, e.g. for MMIO SPTEs. To preserve the GFN, we'll + * shift bits of the GFN that overlap with shadow_nonpresent_or_rsvd_mask + * left into the reserved bits, i.e. the GFN in the SPTE will be split into + * high and low parts. This mask covers the lower bits of the GFN. + */ +static u64 __read_mostly shadow_nonpresent_or_rsvd_lower_gfn_mask; + + static void mmu_spte_set(u64 *sptep, u64 spte); static union kvm_mmu_page_role kvm_mmu_calc_root_page_role(struct kvm_vcpu *vcpu); @@ -357,9 +368,7 @@ static bool is_mmio_spte(u64 spte) static gfn_t get_mmio_spte_gfn(u64 spte) { - u64 mask = generation_mmio_spte_mask(MMIO_GEN_MASK) | shadow_mmio_mask | - shadow_nonpresent_or_rsvd_mask; - u64 gpa = spte & ~mask; + u64 gpa = spte & shadow_nonpresent_or_rsvd_lower_gfn_mask; gpa |= (spte >> shadow_nonpresent_or_rsvd_mask_len) & shadow_nonpresent_or_rsvd_mask; @@ -423,6 +432,8 @@ EXPORT_SYMBOL_GPL(kvm_mmu_set_mask_ptes); static void kvm_mmu_reset_all_pte_masks(void) { + u8 low_phys_bits; + shadow_user_mask = 0; shadow_accessed_mask = 0; shadow_dirty_mask = 0; @@ -437,12 +448,17 @@ static void kvm_mmu_reset_all_pte_masks(void) * appropriate mask to guard against L1TF attacks. Otherwise, it is * assumed that the CPU is not vulnerable to L1TF. */ + low_phys_bits = boot_cpu_data.x86_phys_bits; if (boot_cpu_data.x86_phys_bits < - 52 - shadow_nonpresent_or_rsvd_mask_len) + 52 - shadow_nonpresent_or_rsvd_mask_len) { shadow_nonpresent_or_rsvd_mask = rsvd_bits(boot_cpu_data.x86_phys_bits - shadow_nonpresent_or_rsvd_mask_len, boot_cpu_data.x86_phys_bits - 1); + low_phys_bits -= shadow_nonpresent_or_rsvd_mask_len; + } + shadow_nonpresent_or_rsvd_lower_gfn_mask = + GENMASK_ULL(low_phys_bits - 1, PAGE_SHIFT); } static int is_cpuid_PSE36(void) From e7e86f42fa68c70cab4e964017273da32a77af07 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sun, 30 Sep 2018 09:21:34 -0700 Subject: [PATCH 1478/1762] MAINTAINERS: MIPS/LOONGSON2 ARCHITECTURE - Use the normal wildcard style Neither git nor get_maintainer understands the curly brace style. Signed-off-by: Joe Perches Signed-off-by: Paul Burton Patchwork: https://patchwork.linux-mips.org/patch/20821/ Cc: Huacai Chen Cc: linux-mips Cc: LKML --- MAINTAINERS | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 02a39617ec82..ba90171786d6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9658,7 +9658,8 @@ MIPS/LOONGSON2 ARCHITECTURE M: Jiaxun Yang L: linux-mips@linux-mips.org S: Maintained -F: arch/mips/loongson64/*{2e/2f}* +F: arch/mips/loongson64/fuloong-2e/ +F: arch/mips/loongson64/lemote-2f/ F: arch/mips/include/asm/mach-loongson64/ F: drivers/*/*loongson2* F: drivers/*/*/*loongson2* From bda6b1c95751bbf1779562b8eca3c20b270c0f53 Mon Sep 17 00:00:00 2001 From: Anusha Srivatsa Date: Fri, 17 Aug 2018 10:33:30 -0700 Subject: [PATCH 1479/1762] drm/i915: Do not redefine the has_csr parameter. Let us reuse the already defined has_csr check and not redefine it. The main difference is that in effect this will flip .has_csr to 1 (via GEN9_FEATURES which GEN11_FEATURES pulls in). Suggested-by: Imre Deak Cc: Imre Deak Cc: Rodrigo Vivi Signed-off-by: Anusha Srivatsa Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=107382 Reviewed-by: Imre Deak Signed-off-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/1534527210-16841-1-git-send-email-anusha.srivatsa@intel.com (cherry picked from commit da4468a1aa75457e6134127b19761b7ba62ce945) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/i915_pci.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index 6a4d1388ad2d..1df3ce134cd0 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -592,7 +592,6 @@ static const struct intel_device_info intel_cannonlake_info = { GEN10_FEATURES, \ GEN(11), \ .ddb_size = 2048, \ - .has_csr = 0, \ .has_logical_ring_elsq = 1 static const struct intel_device_info intel_icelake_11_info = { From 4ca8ca9fe7dc792000c3762de5081a4d6dc33667 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 26 Sep 2018 11:47:18 +0100 Subject: [PATCH 1480/1762] drm/i915: Avoid compiler warning for maybe unused gu_misc_iir /kisskb/src/drivers/gpu/drm/i915/i915_irq.c: warning: 'gu_misc_iir' may be used uninitialized in this function [-Wuninitialized]: => 3120:10 Silence the compiler warning by ensuring that the local variable is initialised and removing the guard that is confusing the older gcc. Reported-by: Geert Uytterhoeven Fixes: df0d28c185ad ("drm/i915/icl: GSE interrupt moves from DE_MISC to GU_MISC") Signed-off-by: Chris Wilson Cc: Mika Kuoppala Cc: Paulo Zanoni Reviewed-by: Mika Kuoppala Link: https://patchwork.freedesktop.org/patch/msgid/20180926104718.17462-1-chris@chris-wilson.co.uk (cherry picked from commit 7a90938332d80faf973fbcffdf6e674e7b8f0914) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/i915_irq.c | 33 ++++++++++++--------------------- 1 file changed, 12 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 90628a47ae17..29877969310d 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -3091,36 +3091,27 @@ gen11_gt_irq_handler(struct drm_i915_private * const i915, spin_unlock(&i915->irq_lock); } -static void -gen11_gu_misc_irq_ack(struct drm_i915_private *dev_priv, const u32 master_ctl, - u32 *iir) +static u32 +gen11_gu_misc_irq_ack(struct drm_i915_private *dev_priv, const u32 master_ctl) { void __iomem * const regs = dev_priv->regs; + u32 iir; if (!(master_ctl & GEN11_GU_MISC_IRQ)) - return; + return 0; - *iir = raw_reg_read(regs, GEN11_GU_MISC_IIR); - if (likely(*iir)) - raw_reg_write(regs, GEN11_GU_MISC_IIR, *iir); + iir = raw_reg_read(regs, GEN11_GU_MISC_IIR); + if (likely(iir)) + raw_reg_write(regs, GEN11_GU_MISC_IIR, iir); + + return iir; } static void -gen11_gu_misc_irq_handler(struct drm_i915_private *dev_priv, - const u32 master_ctl, const u32 iir) +gen11_gu_misc_irq_handler(struct drm_i915_private *dev_priv, const u32 iir) { - if (!(master_ctl & GEN11_GU_MISC_IRQ)) - return; - - if (unlikely(!iir)) { - DRM_ERROR("GU_MISC iir blank!\n"); - return; - } - if (iir & GEN11_GU_MISC_GSE) intel_opregion_asle_intr(dev_priv); - else - DRM_ERROR("Unexpected GU_MISC interrupt 0x%x\n", iir); } static irqreturn_t gen11_irq_handler(int irq, void *arg) @@ -3157,12 +3148,12 @@ static irqreturn_t gen11_irq_handler(int irq, void *arg) enable_rpm_wakeref_asserts(i915); } - gen11_gu_misc_irq_ack(i915, master_ctl, &gu_misc_iir); + gu_misc_iir = gen11_gu_misc_irq_ack(i915, master_ctl); /* Acknowledge and enable interrupts. */ raw_reg_write(regs, GEN11_GFX_MSTR_IRQ, GEN11_MASTER_IRQ | master_ctl); - gen11_gu_misc_irq_handler(i915, master_ctl, gu_misc_iir); + gen11_gu_misc_irq_handler(i915, gu_misc_iir); return IRQ_HANDLED; } From 4d8fcf216c90bc25e34ae2200aa8985ee3158898 Mon Sep 17 00:00:00 2001 From: Alaa Hleihel Date: Wed, 5 Sep 2018 11:43:23 +0300 Subject: [PATCH 1481/1762] net/mlx5e: Avoid unbounded peer devices when unpairing TC hairpin rules If the peer device was already unbound, then do not attempt to modify it's resources, otherwise we will crash on dereferencing non-existing device. Fixes: 5c65c564c962 ("net/mlx5e: Support offloading TC NIC hairpin flows") Signed-off-by: Alaa Hleihel Reviewed-by: Or Gerlitz Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en.h | 1 + .../net/ethernet/mellanox/mlx5/core/en/fs.h | 2 + .../net/ethernet/mellanox/mlx5/core/en_main.c | 2 +- .../net/ethernet/mellanox/mlx5/core/en_tc.c | 62 ++++++++++++++++++- .../ethernet/mellanox/mlx5/core/transobj.c | 5 +- include/linux/mlx5/transobj.h | 2 + 6 files changed, 71 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index db2cfcd21d43..0f189f873859 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -54,6 +54,7 @@ #include "en_stats.h" #include "en/fs.h" +extern const struct net_device_ops mlx5e_netdev_ops; struct page_pool; #define MLX5E_METADATA_ETHER_TYPE (0x8CE4) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h b/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h index bbf69e859b78..1431232c9a09 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h @@ -16,6 +16,8 @@ struct mlx5e_tc_table { DECLARE_HASHTABLE(mod_hdr_tbl, 8); DECLARE_HASHTABLE(hairpin_tbl, 8); + + struct notifier_block netdevice_nb; }; struct mlx5e_flow_table { diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 54118b77dc1f..f291d1bf1558 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -4315,7 +4315,7 @@ static int mlx5e_xdp(struct net_device *dev, struct netdev_bpf *xdp) } } -static const struct net_device_ops mlx5e_netdev_ops = { +const struct net_device_ops mlx5e_netdev_ops = { .ndo_open = mlx5e_open, .ndo_stop = mlx5e_close, .ndo_start_xmit = mlx5e_xmit, diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 9fed54017659..52e05f3ece50 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -2946,14 +2946,71 @@ int mlx5e_stats_flower(struct mlx5e_priv *priv, return 0; } +static void mlx5e_tc_hairpin_update_dead_peer(struct mlx5e_priv *priv, + struct mlx5e_priv *peer_priv) +{ + struct mlx5_core_dev *peer_mdev = peer_priv->mdev; + struct mlx5e_hairpin_entry *hpe; + u16 peer_vhca_id; + int bkt; + + if (!same_hw_devs(priv, peer_priv)) + return; + + peer_vhca_id = MLX5_CAP_GEN(peer_mdev, vhca_id); + + hash_for_each(priv->fs.tc.hairpin_tbl, bkt, hpe, hairpin_hlist) { + if (hpe->peer_vhca_id == peer_vhca_id) + hpe->hp->pair->peer_gone = true; + } +} + +static int mlx5e_tc_netdev_event(struct notifier_block *this, + unsigned long event, void *ptr) +{ + struct net_device *ndev = netdev_notifier_info_to_dev(ptr); + struct mlx5e_flow_steering *fs; + struct mlx5e_priv *peer_priv; + struct mlx5e_tc_table *tc; + struct mlx5e_priv *priv; + + if (ndev->netdev_ops != &mlx5e_netdev_ops || + event != NETDEV_UNREGISTER || + ndev->reg_state == NETREG_REGISTERED) + return NOTIFY_DONE; + + tc = container_of(this, struct mlx5e_tc_table, netdevice_nb); + fs = container_of(tc, struct mlx5e_flow_steering, tc); + priv = container_of(fs, struct mlx5e_priv, fs); + peer_priv = netdev_priv(ndev); + if (priv == peer_priv || + !(priv->netdev->features & NETIF_F_HW_TC)) + return NOTIFY_DONE; + + mlx5e_tc_hairpin_update_dead_peer(priv, peer_priv); + + return NOTIFY_DONE; +} + int mlx5e_tc_nic_init(struct mlx5e_priv *priv) { struct mlx5e_tc_table *tc = &priv->fs.tc; + int err; hash_init(tc->mod_hdr_tbl); hash_init(tc->hairpin_tbl); - return rhashtable_init(&tc->ht, &tc_ht_params); + err = rhashtable_init(&tc->ht, &tc_ht_params); + if (err) + return err; + + tc->netdevice_nb.notifier_call = mlx5e_tc_netdev_event; + if (register_netdevice_notifier(&tc->netdevice_nb)) { + tc->netdevice_nb.notifier_call = NULL; + mlx5_core_warn(priv->mdev, "Failed to register netdev notifier\n"); + } + + return err; } static void _mlx5e_tc_del_flow(void *ptr, void *arg) @@ -2969,6 +3026,9 @@ void mlx5e_tc_nic_cleanup(struct mlx5e_priv *priv) { struct mlx5e_tc_table *tc = &priv->fs.tc; + if (tc->netdevice_nb.notifier_call) + unregister_netdevice_notifier(&tc->netdevice_nb); + rhashtable_free_and_destroy(&tc->ht, _mlx5e_tc_del_flow, NULL); if (!IS_ERR_OR_NULL(tc->t)) { diff --git a/drivers/net/ethernet/mellanox/mlx5/core/transobj.c b/drivers/net/ethernet/mellanox/mlx5/core/transobj.c index d2f76070ea7c..a1ee9a8a769e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/transobj.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/transobj.c @@ -475,7 +475,8 @@ static void mlx5_hairpin_destroy_queues(struct mlx5_hairpin *hp) for (i = 0; i < hp->num_channels; i++) { mlx5_core_destroy_rq(hp->func_mdev, hp->rqn[i]); - mlx5_core_destroy_sq(hp->peer_mdev, hp->sqn[i]); + if (!hp->peer_gone) + mlx5_core_destroy_sq(hp->peer_mdev, hp->sqn[i]); } } @@ -567,6 +568,8 @@ static void mlx5_hairpin_unpair_queues(struct mlx5_hairpin *hp) MLX5_RQC_STATE_RST, 0, 0); /* unset peer SQs */ + if (hp->peer_gone) + return; for (i = 0; i < hp->num_channels; i++) mlx5_hairpin_modify_sq(hp->peer_mdev, hp->sqn[i], MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_RST, 0, 0); diff --git a/include/linux/mlx5/transobj.h b/include/linux/mlx5/transobj.h index 83a33a1873a6..7f5ca2cd3a32 100644 --- a/include/linux/mlx5/transobj.h +++ b/include/linux/mlx5/transobj.h @@ -90,6 +90,8 @@ struct mlx5_hairpin { u32 *rqn; u32 *sqn; + + bool peer_gone; }; struct mlx5_hairpin * From 11aa5800ed66ed0415b7509f02881c76417d212a Mon Sep 17 00:00:00 2001 From: Eran Ben Elisha Date: Sun, 16 Sep 2018 14:45:27 +0300 Subject: [PATCH 1482/1762] net/mlx5: E-Switch, Fix out of bound access when setting vport rate The code that deals with eswitch vport bw guarantee was going beyond the eswitch vport array limit, fix that. This was pointed out by the kernel address sanitizer (KASAN). The error from KASAN log: [2018-09-15 15:04:45] BUG: KASAN: slab-out-of-bounds in mlx5_eswitch_set_vport_rate+0x8c1/0xae0 [mlx5_core] Fixes: c9497c98901c ("net/mlx5: Add support for setting VF min rate") Signed-off-by: Eran Ben Elisha Reviewed-by: Or Gerlitz Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c index 2b252cde5cc2..ea7dedc2d5ad 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c @@ -2000,7 +2000,7 @@ static u32 calculate_vports_min_rate_divider(struct mlx5_eswitch *esw) u32 max_guarantee = 0; int i; - for (i = 0; i <= esw->total_vports; i++) { + for (i = 0; i < esw->total_vports; i++) { evport = &esw->vports[i]; if (!evport->enabled || evport->info.min_rate < max_guarantee) continue; @@ -2020,7 +2020,7 @@ static int normalize_vports_min_rate(struct mlx5_eswitch *esw, u32 divider) int err; int i; - for (i = 0; i <= esw->total_vports; i++) { + for (i = 0; i < esw->total_vports; i++) { evport = &esw->vports[i]; if (!evport->enabled) continue; From cee26487620bc9bc3c7db21b6984d91f7bae12ae Mon Sep 17 00:00:00 2001 From: Jianbo Liu Date: Sat, 25 Aug 2018 03:29:58 +0000 Subject: [PATCH 1483/1762] net/mlx5e: Set vlan masks for all offloaded TC rules In flow steering, if asked to, the hardware matches on the first ethertype which is not vlan. It's possible to set a rule as follows, which is meant to match on untagged packet, but will match on a vlan packet: tc filter add dev eth0 parent ffff: protocol ip flower ... To avoid this for packets with single tag, we set vlan masks to tell hardware to check the tags for every matched packet. Fixes: 095b6cfd69ce ('net/mlx5e: Add TC vlan match parsing') Signed-off-by: Jianbo Liu Reviewed-by: Or Gerlitz Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 52e05f3ece50..85796727093e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -1368,6 +1368,9 @@ static int __parse_cls_flower(struct mlx5e_priv *priv, *match_level = MLX5_MATCH_L2; } + } else { + MLX5_SET(fte_match_set_lyr_2_4, headers_c, svlan_tag, 1); + MLX5_SET(fte_match_set_lyr_2_4, headers_c, cvlan_tag, 1); } if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CVLAN)) { From 95375f2ab2960c135484d83ea9f8f357cb1be26a Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Mon, 1 Oct 2018 14:49:34 +0200 Subject: [PATCH 1484/1762] PCI: mvebu: Fix PCI I/O mapping creation sequence MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit ee1604381a371 ("PCI: mvebu: Only remap I/O space if configured") had the side effect that the PCI I/O mapping was created much earlier than before, at a point where the probe() of the driver could still fail. This is for example a problem if one gets an -EPROBE_DEFER at some point during probe(), after pci_ioremap_io() has been called. Indeed, there is currently no function to undo what pci_ioremap_io() did, and switching to pci_remap_iospace() is not an option in pci-mvebu due to the need for special memory attributes on Armada 38x. Reverting ee1604381a371 ("PCI: mvebu: Only remap I/O space if configured") would be a possibility, but it would require also reverting 42342073e38b5 ("PCI: mvebu: Convert to use pci_host_bridge directly"). So instead, we use an open-coded version of pci_host_probe() that creates the PCI I/O mapping at a point where we are guaranteed not to fail anymore. Fixes: ee1604381a371 ("PCI: mvebu: Only remap I/O space if configured") Reported-by: Jan Kundrát Tested-by: Jan Kundrát Signed-off-by: Thomas Petazzoni Signed-off-by: Bjorn Helgaas Acked-by: Lorenzo Pieralisi --- drivers/pci/controller/pci-mvebu.c | 54 +++++++++++++++++++++++++++--- 1 file changed, 49 insertions(+), 5 deletions(-) diff --git a/drivers/pci/controller/pci-mvebu.c b/drivers/pci/controller/pci-mvebu.c index 50eb0729385b..a41d79b8d46a 100644 --- a/drivers/pci/controller/pci-mvebu.c +++ b/drivers/pci/controller/pci-mvebu.c @@ -1145,7 +1145,6 @@ static int mvebu_pcie_parse_request_resources(struct mvebu_pcie *pcie) { struct device *dev = &pcie->pdev->dev; struct device_node *np = dev->of_node; - unsigned int i; int ret; INIT_LIST_HEAD(&pcie->resources); @@ -1179,15 +1178,60 @@ static int mvebu_pcie_parse_request_resources(struct mvebu_pcie *pcie) resource_size(&pcie->io) - 1); pcie->realio.name = "PCI I/O"; - for (i = 0; i < resource_size(&pcie->realio); i += SZ_64K) - pci_ioremap_io(i, pcie->io.start + i); - pci_add_resource(&pcie->resources, &pcie->realio); } return devm_request_pci_bus_resources(dev, &pcie->resources); } +/* + * This is a copy of pci_host_probe(), except that it does the I/O + * remap as the last step, once we are sure we won't fail. + * + * It should be removed once the I/O remap error handling issue has + * been sorted out. + */ +static int mvebu_pci_host_probe(struct pci_host_bridge *bridge) +{ + struct mvebu_pcie *pcie; + struct pci_bus *bus, *child; + int ret; + + ret = pci_scan_root_bus_bridge(bridge); + if (ret < 0) { + dev_err(bridge->dev.parent, "Scanning root bridge failed"); + return ret; + } + + pcie = pci_host_bridge_priv(bridge); + if (resource_size(&pcie->io) != 0) { + unsigned int i; + + for (i = 0; i < resource_size(&pcie->realio); i += SZ_64K) + pci_ioremap_io(i, pcie->io.start + i); + } + + bus = bridge->bus; + + /* + * We insert PCI resources into the iomem_resource and + * ioport_resource trees in either pci_bus_claim_resources() + * or pci_bus_assign_resources(). + */ + if (pci_has_flag(PCI_PROBE_ONLY)) { + pci_bus_claim_resources(bus); + } else { + pci_bus_size_bridges(bus); + pci_bus_assign_resources(bus); + + list_for_each_entry(child, &bus->children, node) + pcie_bus_configure_settings(child); + } + + pci_bus_add_devices(bus); + return 0; +} + static int mvebu_pcie_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -1268,7 +1312,7 @@ static int mvebu_pcie_probe(struct platform_device *pdev) bridge->align_resource = mvebu_pcie_align_resource; bridge->msi = pcie->msi; - return pci_host_probe(bridge); + return mvebu_pci_host_probe(bridge); } static const struct of_device_id mvebu_pcie_of_match_table[] = { From 1ad98e9d1bdf4724c0a8532fabd84bf3c457c2bc Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 1 Oct 2018 15:02:26 -0700 Subject: [PATCH 1485/1762] tcp/dccp: fix lockdep issue when SYN is backlogged In normal SYN processing, packets are handled without listener lock and in RCU protected ingress path. But syzkaller is known to be able to trick us and SYN packets might be processed in process context, after being queued into socket backlog. In commit 06f877d613be ("tcp/dccp: fix other lockdep splats accessing ireq_opt") I made a very stupid fix, that happened to work mostly because of the regular path being RCU protected. Really the thing protecting ireq->ireq_opt is RCU read lock, and the pseudo request refcnt is not relevant. This patch extends what I did in commit 449809a66c1d ("tcp/dccp: block BH for SYN processing") by adding an extra rcu_read_{lock|unlock} pair in the paths that might be taken when processing SYN from socket backlog (thus possibly in process context) Fixes: 06f877d613be ("tcp/dccp: fix other lockdep splats accessing ireq_opt") Signed-off-by: Eric Dumazet Reported-by: syzbot Signed-off-by: David S. Miller --- include/net/inet_sock.h | 3 +-- net/dccp/input.c | 4 +++- net/ipv4/tcp_input.c | 4 +++- 3 files changed, 7 insertions(+), 4 deletions(-) diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index e03b93360f33..a8cd5cf9ff5b 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h @@ -132,8 +132,7 @@ static inline int inet_request_bound_dev_if(const struct sock *sk, static inline struct ip_options_rcu *ireq_opt_deref(const struct inet_request_sock *ireq) { - return rcu_dereference_check(ireq->ireq_opt, - refcount_read(&ireq->req.rsk_refcnt) > 0); + return rcu_dereference(ireq->ireq_opt); } struct inet_cork { diff --git a/net/dccp/input.c b/net/dccp/input.c index d28d46bff6ab..85d6c879383d 100644 --- a/net/dccp/input.c +++ b/net/dccp/input.c @@ -606,11 +606,13 @@ int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb, if (sk->sk_state == DCCP_LISTEN) { if (dh->dccph_type == DCCP_PKT_REQUEST) { /* It is possible that we process SYN packets from backlog, - * so we need to make sure to disable BH right there. + * so we need to make sure to disable BH and RCU right there. */ + rcu_read_lock(); local_bh_disable(); acceptable = inet_csk(sk)->icsk_af_ops->conn_request(sk, skb) >= 0; local_bh_enable(); + rcu_read_unlock(); if (!acceptable) return 1; consume_skb(skb); diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 4cf2f7bb2802..47e08c1b5bc3 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -6009,11 +6009,13 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb) if (th->fin) goto discard; /* It is possible that we process SYN packets from backlog, - * so we need to make sure to disable BH right there. + * so we need to make sure to disable BH and RCU right there. */ + rcu_read_lock(); local_bh_disable(); acceptable = icsk->icsk_af_ops->conn_request(sk, skb) >= 0; local_bh_enable(); + rcu_read_unlock(); if (!acceptable) return 1; From 242cdad873a75652f97c35aad61270581e0f3a2e Mon Sep 17 00:00:00 2001 From: Joel Stanley Date: Fri, 21 Sep 2018 12:24:31 +0930 Subject: [PATCH 1486/1762] lib/xz: Put CRC32_POLY_LE in xz_private.h This fixes a regression introduced by faa16bc404d72a5 ("lib: Use existing define with polynomial"). The cleanup added a dependency on include/linux, which broke the PowerPC boot wrapper/decompresser when KERNEL_XZ is enabled: BOOTCC arch/powerpc/boot/decompress.o In file included from arch/powerpc/boot/../../../lib/decompress_unxz.c:233, from arch/powerpc/boot/decompress.c:42: arch/powerpc/boot/../../../lib/xz/xz_crc32.c:18:10: fatal error: linux/crc32poly.h: No such file or directory #include ^~~~~~~~~~~~~~~~~~~ The powerpc decompresser is a hairy corner of the kernel. Even while building a 64-bit kernel it needs to build a 32-bit binary and therefore avoid including files from include/linux. This allows users of the xz library to avoid including headers from 'include/linux/' while still achieving the cleanup of the magic number. Fixes: faa16bc404d72a5 ("lib: Use existing define with polynomial") Reported-by: Meelis Roos Reported-by: kbuild test robot Suggested-by: Christophe LEROY Signed-off-by: Joel Stanley Tested-by: Meelis Roos Signed-off-by: Michael Ellerman --- lib/xz/xz_crc32.c | 1 - lib/xz/xz_private.h | 4 ++++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/lib/xz/xz_crc32.c b/lib/xz/xz_crc32.c index 25a5d87e2e4c..912aae5fa09e 100644 --- a/lib/xz/xz_crc32.c +++ b/lib/xz/xz_crc32.c @@ -15,7 +15,6 @@ * but they are bigger and use more memory for the lookup table. */ -#include #include "xz_private.h" /* diff --git a/lib/xz/xz_private.h b/lib/xz/xz_private.h index 482b90f363fe..09360ebb510e 100644 --- a/lib/xz/xz_private.h +++ b/lib/xz/xz_private.h @@ -102,6 +102,10 @@ # endif #endif +#ifndef CRC32_POLY_LE +#define CRC32_POLY_LE 0xedb88320 +#endif + /* * Allocate memory for LZMA2 decoder. xz_dec_lzma2_reset() must be used * before calling xz_dec_lzma2_run(). From 5a1eb8b9542884592a018829bb1ff20c9695d925 Mon Sep 17 00:00:00 2001 From: Laurentiu Tudor Date: Wed, 26 Sep 2018 16:22:31 +0300 Subject: [PATCH 1487/1762] soc: fsl: qman_portals: defer probe after qman's probe Defer probe of qman portals after qman probing. This fixes the crash below, seen on NXP LS1043A SoCs: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004 Mem abort info: ESR = 0x96000004 Exception class = DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 [0000000000000004] user address but active_mm is swapper Internal error: Oops: 96000004 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.18.0-rc1-next-20180622-00200-g986f5c179185 #9 Hardware name: LS1043A RDB Board (DT) pstate: 80000005 (Nzcv daif -PAN -UAO) pc : qman_set_sdest+0x74/0xa0 lr : qman_portal_probe+0x22c/0x470 sp : ffff00000803bbc0 x29: ffff00000803bbc0 x28: 0000000000000000 x27: ffff0000090c1b88 x26: ffff00000927cb68 x25: ffff00000927c000 x24: ffff00000927cb60 x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000090e9000 x20: ffff800073b5c810 x19: ffff800027401298 x18: ffffffffffffffff x17: 0000000000000001 x16: 0000000000000000 x15: ffff0000090e96c8 x14: ffff80002740138a x13: ffff0000090f2000 x12: 0000000000000030 x11: ffff000008f25000 x10: 0000000000000000 x9 : ffff80007bdfd2c0 x8 : 0000000000004000 x7 : ffff80007393cc18 x6 : 0040000000000001 x5 : 0000000000000000 x4 : ffffffffffffffff x3 : 0000000000000004 x2 : ffff00000927c900 x1 : 0000000000000000 x0 : 0000000000000004 Process swapper/0 (pid: 1, stack limit = 0x(____ptrval____)) Call trace: qman_set_sdest+0x74/0xa0 platform_drv_probe+0x50/0xa8 driver_probe_device+0x214/0x2f8 __driver_attach+0xd8/0xe0 bus_for_each_dev+0x68/0xc8 driver_attach+0x20/0x28 bus_add_driver+0x108/0x228 driver_register+0x60/0x110 __platform_driver_register+0x40/0x48 qman_portal_driver_init+0x20/0x84 do_one_initcall+0x58/0x168 kernel_init_freeable+0x184/0x22c kernel_init+0x10/0x108 ret_from_fork+0x10/0x18 Code: f9400443 11001000 927e4800 8b000063 (b9400063) ---[ end trace 4f6d50489ecfb930 ]--- Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b Signed-off-by: Laurentiu Tudor Signed-off-by: Li Yang --- drivers/soc/fsl/qbman/qman_portal.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/soc/fsl/qbman/qman_portal.c b/drivers/soc/fsl/qbman/qman_portal.c index a120002b630e..3e9391d117c5 100644 --- a/drivers/soc/fsl/qbman/qman_portal.c +++ b/drivers/soc/fsl/qbman/qman_portal.c @@ -227,6 +227,14 @@ static int qman_portal_probe(struct platform_device *pdev) int irq, cpu, err; u32 val; + err = qman_is_probed(); + if (!err) + return -EPROBE_DEFER; + if (err < 0) { + dev_err(&pdev->dev, "failing probe due to qman probe error\n"); + return -ENODEV; + } + pcfg = devm_kmalloc(dev, sizeof(*pcfg), GFP_KERNEL); if (!pcfg) return -ENOMEM; From 9735082a7cbae572c2eabdc45acecc8c9fa0759b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ramses=20Ram=C3=ADrez?= Date: Fri, 28 Sep 2018 16:59:26 -0700 Subject: [PATCH 1488/1762] Input: xpad - add support for Xbox1 PDP Camo series gamepad MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The "Xbox One PDP Wired Controller - Camo series" has a different product-id than the regular PDP controller and the PDP stealth series, but it uses the same initialization sequence. This patch adds the product-id of the camo series to the structures that handle the other PDP Xbox One controllers. Signed-off-by: Ramses Ramírez Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov --- drivers/input/joystick/xpad.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c index cd620e009bad..d4b9db487b16 100644 --- a/drivers/input/joystick/xpad.c +++ b/drivers/input/joystick/xpad.c @@ -231,6 +231,7 @@ static const struct xpad_device { { 0x0e6f, 0x0246, "Rock Candy Gamepad for Xbox One 2015", 0, XTYPE_XBOXONE }, { 0x0e6f, 0x02ab, "PDP Controller for Xbox One", 0, XTYPE_XBOXONE }, { 0x0e6f, 0x02a4, "PDP Wired Controller for Xbox One - Stealth Series", 0, XTYPE_XBOXONE }, + { 0x0e6f, 0x02a6, "PDP Wired Controller for Xbox One - Camo Series", 0, XTYPE_XBOXONE }, { 0x0e6f, 0x0301, "Logic3 Controller", 0, XTYPE_XBOX360 }, { 0x0e6f, 0x0346, "Rock Candy Gamepad for Xbox One 2016", 0, XTYPE_XBOXONE }, { 0x0e6f, 0x0401, "Logic3 Controller", 0, XTYPE_XBOX360 }, @@ -530,6 +531,8 @@ static const struct xboxone_init_packet xboxone_init_packets[] = { XBOXONE_INIT_PKT(0x0e6f, 0x02ab, xboxone_pdp_init2), XBOXONE_INIT_PKT(0x0e6f, 0x02a4, xboxone_pdp_init1), XBOXONE_INIT_PKT(0x0e6f, 0x02a4, xboxone_pdp_init2), + XBOXONE_INIT_PKT(0x0e6f, 0x02a6, xboxone_pdp_init1), + XBOXONE_INIT_PKT(0x0e6f, 0x02a6, xboxone_pdp_init2), XBOXONE_INIT_PKT(0x24c6, 0x541a, xboxone_rumblebegin_init), XBOXONE_INIT_PKT(0x24c6, 0x542a, xboxone_rumblebegin_init), XBOXONE_INIT_PKT(0x24c6, 0x543a, xboxone_rumblebegin_init), From 684bec1092b6991ff2a7751e8a763898576eb5c2 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Mon, 1 Oct 2018 15:55:22 -0700 Subject: [PATCH 1489/1762] Input: i8042 - enable keyboard wakeups by default when s2idle is used Previously, on typical consumer laptops, pressing a key on the keyboard when the system is in suspend would cause it to wake up (default or unconditional behaviour). This happens because the EC generates a SCI interrupt in this scenario. That is no longer true on modern laptops based on Intel WhiskeyLake, including Acer Swift SF314-55G, Asus UX333FA, Asus UX433FN and Asus UX533FD. We confirmed with Asus EC engineers that the "Modern Standby" design has been modified so that the EC no longer generates a SCI in this case; the keyboard controller itself should be used for wakeup. In order to retain the standard behaviour of being able to use the keyboard to wake up the system, enable serio wakeups by default on platforms that are using s2idle. Link: https://lkml.kernel.org/r/CAB4CAwfQ0mPMqCLp95TVjw4J0r5zKPWkSvvkK4cpZUGE--w8bQ@mail.gmail.com Reviewed-by: Rafael J. Wysocki Signed-off-by: Daniel Drake Signed-off-by: Dmitry Torokhov --- drivers/input/serio/i8042.c | 29 ++++++++++++++++++++--------- include/linux/suspend.h | 2 ++ kernel/power/suspend.c | 6 ++++++ 3 files changed, 28 insertions(+), 9 deletions(-) diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index b8bc71569349..95a78ccbd847 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -1395,15 +1395,26 @@ static void __init i8042_register_ports(void) for (i = 0; i < I8042_NUM_PORTS; i++) { struct serio *serio = i8042_ports[i].serio; - if (serio) { - printk(KERN_INFO "serio: %s at %#lx,%#lx irq %d\n", - serio->name, - (unsigned long) I8042_DATA_REG, - (unsigned long) I8042_COMMAND_REG, - i8042_ports[i].irq); - serio_register_port(serio); - device_set_wakeup_capable(&serio->dev, true); - } + if (!serio) + continue; + + printk(KERN_INFO "serio: %s at %#lx,%#lx irq %d\n", + serio->name, + (unsigned long) I8042_DATA_REG, + (unsigned long) I8042_COMMAND_REG, + i8042_ports[i].irq); + serio_register_port(serio); + device_set_wakeup_capable(&serio->dev, true); + + /* + * On platforms using suspend-to-idle, allow the keyboard to + * wake up the system from sleep by enabling keyboard wakeups + * by default. This is consistent with keyboard wakeup + * behavior on many platforms using suspend-to-RAM (ACPI S3) + * by default. + */ + if (pm_suspend_via_s2idle() && i == I8042_KBD_PORT_NO) + device_set_wakeup_enable(&serio->dev, true); } } diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 440b62f7502e..206b735f383f 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -251,6 +251,7 @@ static inline bool idle_should_enter_s2idle(void) return unlikely(s2idle_state == S2IDLE_STATE_ENTER); } +extern bool pm_suspend_via_s2idle(void); extern void __init pm_states_init(void); extern void s2idle_set_ops(const struct platform_s2idle_ops *ops); extern void s2idle_wake(void); @@ -282,6 +283,7 @@ static inline void pm_set_suspend_via_firmware(void) {} static inline void pm_set_resume_via_firmware(void) {} static inline bool pm_suspend_via_firmware(void) { return false; } static inline bool pm_resume_via_firmware(void) { return false; } +static inline bool pm_suspend_via_s2idle(void) { return false; } static inline void suspend_set_ops(const struct platform_suspend_ops *ops) {} static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; } diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 4c10be0f4843..be3d0d477661 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -62,6 +62,12 @@ static DECLARE_WAIT_QUEUE_HEAD(s2idle_wait_head); enum s2idle_states __read_mostly s2idle_state; static DEFINE_SPINLOCK(s2idle_lock); +bool pm_suspend_via_s2idle(void) +{ + return mem_sleep_current == PM_SUSPEND_TO_IDLE; +} +EXPORT_SYMBOL_GPL(pm_suspend_via_s2idle); + void s2idle_set_ops(const struct platform_s2idle_ops *ops) { lock_system_sleep(); From f2924d4b16ae138c2de6a0e73f526fb638330858 Mon Sep 17 00:00:00 2001 From: Romain Izard Date: Thu, 20 Sep 2018 16:49:04 +0200 Subject: [PATCH 1490/1762] usb: cdc_acm: Do not leak URB buffers When the ACM TTY port is disconnected, the URBs it uses must be killed, and then the buffers must be freed. Unfortunately a previous refactor removed the code freeing the buffers because it looked extremely similar to the code killing the URBs. As a result, there were many new leaks for each plug/unplug cycle of a CDC-ACM device, that were detected by kmemleak. Restore the missing code, and the memory leak is removed. Fixes: ba8c931ded8d ("cdc-acm: refactor killing urbs") Signed-off-by: Romain Izard Acked-by: Oliver Neukum Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index f9b40a9dc4d3..bc03b0a690b4 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1514,6 +1514,7 @@ static void acm_disconnect(struct usb_interface *intf) { struct acm *acm = usb_get_intfdata(intf); struct tty_struct *tty; + int i; /* sibling interface is already cleaning up */ if (!acm) @@ -1544,6 +1545,11 @@ static void acm_disconnect(struct usb_interface *intf) tty_unregister_device(acm_tty_driver, acm->minor); + usb_free_urb(acm->ctrlurb); + for (i = 0; i < ACM_NW; i++) + usb_free_urb(acm->wb[i].urb); + for (i = 0; i < acm->rx_buflimit; i++) + usb_free_urb(acm->read_urbs[i]); acm_write_buffers_free(acm); usb_free_coherent(acm->dev, acm->ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); acm_read_buffers_free(acm); From ffe84e01bb1b38c7eb9c6b6da127a6c136d251df Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Mon, 1 Oct 2018 18:36:07 +0300 Subject: [PATCH 1491/1762] xhci: Add missing CAS workaround for Intel Sunrise Point xHCI The workaround for missing CAS bit is also needed for xHC on Intel sunrisepoint PCH. For more details see: Intel 100/c230 series PCH specification update Doc #332692-006 Errata #8 Cc: Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-pci.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 6372edf339d9..722860eb5a91 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -185,6 +185,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) } if (pdev->vendor == PCI_VENDOR_ID_INTEL && (pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI || + pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI || + pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI || pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI || pdev->device == PCI_DEVICE_ID_INTEL_DNV_XHCI)) xhci->quirks |= XHCI_MISSING_CAS; From 555df5820e733cded7eb8d0bf78b2a791be51d75 Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Mon, 1 Oct 2018 18:36:08 +0300 Subject: [PATCH 1492/1762] usb: xhci-mtk: resume USB3 roothub first Give USB3 devices a better chance to enumerate at USB3 speeds if they are connected to a suspended host. Porting from "671ffdff5b13 xhci: resume USB 3 roothub first" Cc: Signed-off-by: Chunfeng Yun Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-mtk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index 7334da9e9779..71d0d33c3286 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -642,10 +642,10 @@ static int __maybe_unused xhci_mtk_resume(struct device *dev) xhci_mtk_host_enable(mtk); xhci_dbg(xhci, "%s: restart port polling\n", __func__); - set_bit(HCD_FLAG_POLL_RH, &hcd->flags); - usb_hcd_poll_rh_status(hcd); set_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags); usb_hcd_poll_rh_status(xhci->shared_hcd); + set_bit(HCD_FLAG_POLL_RH, &hcd->flags); + usb_hcd_poll_rh_status(hcd); return 0; } From aeadd93f2b0a609f603ac33e574b97a9832d1b90 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 22 Sep 2018 16:46:48 +0300 Subject: [PATCH 1493/1762] net: sched: act_ipt: check for underflow in __tcf_ipt_init() If "td->u.target_size" is larger than sizeof(struct xt_entry_target) we return -EINVAL. But we don't check whether it's smaller than sizeof(struct xt_entry_target) and that could lead to an out of bounds read. Fixes: 7ba699c604ab ("[NET_SCHED]: Convert actions from rtnetlink to new netlink API") Signed-off-by: Dan Carpenter Signed-off-by: David S. Miller --- net/sched/act_ipt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c index 23273b5303fd..8525de811616 100644 --- a/net/sched/act_ipt.c +++ b/net/sched/act_ipt.c @@ -135,7 +135,7 @@ static int __tcf_ipt_init(struct net *net, unsigned int id, struct nlattr *nla, } td = (struct xt_entry_target *)nla_data(tb[TCA_IPT_TARG]); - if (nla_len(tb[TCA_IPT_TARG]) < td->u.target_size) { + if (nla_len(tb[TCA_IPT_TARG]) != td->u.target_size) { if (exists) tcf_idr_release(*a, bind); else From d949cfedbcbab4e91590576cbace2671924ad69c Mon Sep 17 00:00:00 2001 From: LUU Duc Canh Date: Wed, 26 Sep 2018 22:28:52 +0200 Subject: [PATCH 1494/1762] tipc: ignore STATE_MSG on wrong link session The initial session number when a link is created is based on a random value, taken from struct tipc_net->random. It is then incremented for each link reset to avoid mixing protocol messages from different link sessions. However, when a bearer is reset all its links are deleted, and will later be re-created using the same random value as the first time. This means that if the link never went down between creation and deletion we will still sometimes have two subsequent sessions with the same session number. In virtual environments with potentially long transmission times this has turned out to be a real problem. We now fix this by randomizing the session number each time a link is created. With a session number size of 16 bits this gives a risk of session collision of 1/64k. To reduce this further, we also introduce a sanity check on the very first STATE message arriving at a link. If this has an acknowledge value differing from 0, which is logically impossible, we ignore the message. The final risk for session collision is hence reduced to 1/4G, which should be sufficient. Signed-off-by: LUU Duc Canh Signed-off-by: Jon Maloy Signed-off-by: David S. Miller --- net/tipc/link.c | 3 +++ net/tipc/node.c | 5 +++-- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/net/tipc/link.c b/net/tipc/link.c index 4ed650ce6e61..fb886b525d95 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -1516,6 +1516,9 @@ bool tipc_link_validate_msg(struct tipc_link *l, struct tipc_msg *hdr) return false; if (session != curr_session) return false; + /* Extra sanity check */ + if (!link_is_up(l) && msg_ack(hdr)) + return false; if (!(l->peer_caps & TIPC_LINK_PROTO_SEQNO)) return true; /* Accept only STATE with new sequence number */ diff --git a/net/tipc/node.c b/net/tipc/node.c index b0ee25f1f2e6..2afc4f8c37a7 100644 --- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -913,6 +913,7 @@ void tipc_node_check_dest(struct net *net, u32 addr, bool reset = true; char *if_name; unsigned long intv; + u16 session; *dupl_addr = false; *respond = false; @@ -999,9 +1000,10 @@ void tipc_node_check_dest(struct net *net, u32 addr, goto exit; if_name = strchr(b->name, ':') + 1; + get_random_bytes(&session, sizeof(u16)); if (!tipc_link_create(net, if_name, b->identity, b->tolerance, b->net_plane, b->mtu, b->priority, - b->window, mod(tipc_net(net)->random), + b->window, session, tipc_own_addr(net), addr, peer_id, n->capabilities, tipc_bc_sndlink(n->net), n->bc_entry.link, @@ -1625,7 +1627,6 @@ static bool tipc_node_check_state(struct tipc_node *n, struct sk_buff *skb, tipc_link_create_dummy_tnl_msg(l, xmitq); n->failover_sent = true; } - /* If pkts arrive out of order, use lowest calculated syncpt */ if (less(syncpt, n->sync_point)) n->sync_point = syncpt; From 7f6d6558ae44bc193eb28df3617c364d3bb6df39 Mon Sep 17 00:00:00 2001 From: Flavio Leitner Date: Fri, 28 Sep 2018 14:55:34 -0300 Subject: [PATCH 1495/1762] Revert "openvswitch: Fix template leak in error cases." This reverts commit 90c7afc96cbbd77f44094b5b651261968e97de67. When the commit was merged, the code used nf_ct_put() to free the entry, but later on commit 76644232e612 ("openvswitch: Free tmpl with tmpl_free.") replaced that with nf_ct_tmpl_free which is a more appropriate. Now the original problem is removed. Then 44d6e2f27328 ("net: Replace NF_CT_ASSERT() with WARN_ON().") replaced a debug assert with a WARN_ON() which is trigged now. Signed-off-by: Flavio Leitner Acked-by: Joe Stringer Signed-off-by: David S. Miller --- net/openvswitch/conntrack.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c index 86a75105af1a..0aeb34c6389d 100644 --- a/net/openvswitch/conntrack.c +++ b/net/openvswitch/conntrack.c @@ -1624,10 +1624,6 @@ int ovs_ct_copy_action(struct net *net, const struct nlattr *attr, OVS_NLERR(log, "Failed to allocate conntrack template"); return -ENOMEM; } - - __set_bit(IPS_CONFIRMED_BIT, &ct_info.ct->status); - nf_conntrack_get(&ct_info.ct->ct_general); - if (helper) { err = ovs_ct_add_helper(&ct_info, helper, key, log); if (err) @@ -1639,6 +1635,8 @@ int ovs_ct_copy_action(struct net *net, const struct nlattr *attr, if (err) goto err_free_ct; + __set_bit(IPS_CONFIRMED_BIT, &ct_info.ct->status); + nf_conntrack_get(&ct_info.ct->ct_general); return 0; err_free_ct: __ovs_ct_free_action(&ct_info); From 893626d6a353d1356528f94e081246ecf233d77a Mon Sep 17 00:00:00 2001 From: David Ahern Date: Fri, 28 Sep 2018 12:28:41 -0700 Subject: [PATCH 1496/1762] rtnetlink: Fail dump if target netnsid is invalid Link dumps can return results from a target namespace. If the namespace id is invalid, then the dump request should fail if get_target_net fails rather than continuing with a dump of the current namespace. Fixes: 79e1ad148c844 ("rtnetlink: use netnsid to query interface") Signed-off-by: David Ahern Signed-off-by: David S. Miller --- net/core/rtnetlink.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 63ce2283a456..7f37fe9c65a5 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1898,10 +1898,8 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb) if (tb[IFLA_IF_NETNSID]) { netnsid = nla_get_s32(tb[IFLA_IF_NETNSID]); tgt_net = get_target_net(skb->sk, netnsid); - if (IS_ERR(tgt_net)) { - tgt_net = net; - netnsid = -1; - } + if (IS_ERR(tgt_net)) + return PTR_ERR(tgt_net); } if (tb[IFLA_EXT_MASK]) From 6fe9487892b32cb1c8b8b0d552ed7222a527fe30 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Fri, 28 Sep 2018 16:26:08 -0400 Subject: [PATCH 1497/1762] bond: take rcu lock in netpoll_send_skb_on_dev The bonding driver lacks the rcu lock when it calls down into netdev_lower_get_next_private_rcu from bond_poll_controller, which results in a trace like: WARNING: CPU: 2 PID: 179 at net/core/dev.c:6567 netdev_lower_get_next_private_rcu+0x34/0x40 CPU: 2 PID: 179 Comm: kworker/u16:15 Not tainted 4.19.0-rc5-backup+ #1 Workqueue: bond0 bond_mii_monitor RIP: 0010:netdev_lower_get_next_private_rcu+0x34/0x40 Code: 48 89 fb e8 fe 29 63 ff 85 c0 74 1e 48 8b 45 00 48 81 c3 c0 00 00 00 48 8b 00 48 39 d8 74 0f 48 89 45 00 48 8b 40 f8 5b 5d c3 <0f> 0b eb de 31 c0 eb f5 0f 1f 40 00 0f 1f 44 00 00 48 8> RSP: 0018:ffffc9000087fa68 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff880429614560 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 00000000ffffffff RDI: ffffffffa184ada0 RBP: ffffc9000087fa80 R08: 0000000000000001 R09: 0000000000000000 R10: ffffc9000087f9f0 R11: ffff880429798040 R12: ffff8804289d5980 R13: ffffffffa1511f60 R14: 00000000000000c8 R15: 00000000ffffffff FS: 0000000000000000(0000) GS:ffff88042f880000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4b78fce180 CR3: 000000018180f006 CR4: 00000000001606e0 Call Trace: bond_poll_controller+0x52/0x170 netpoll_poll_dev+0x79/0x290 netpoll_send_skb_on_dev+0x158/0x2c0 netpoll_send_udp+0x2d5/0x430 write_ext_msg+0x1e0/0x210 console_unlock+0x3c4/0x630 vprintk_emit+0xfa/0x2f0 printk+0x52/0x6e ? __netdev_printk+0x12b/0x220 netdev_info+0x64/0x80 ? bond_3ad_set_carrier+0xe9/0x180 bond_select_active_slave+0x1fc/0x310 bond_mii_monitor+0x709/0x9b0 process_one_work+0x221/0x5e0 worker_thread+0x4f/0x3b0 kthread+0x100/0x140 ? process_one_work+0x5e0/0x5e0 ? kthread_delayed_work_timer_fn+0x90/0x90 ret_from_fork+0x24/0x30 We're also doing rcu dereferences a layer up in netpoll_send_skb_on_dev before we call down into netpoll_poll_dev, so just take the lock there. Suggested-by: Cong Wang Signed-off-by: Dave Jones Signed-off-by: David S. Miller --- net/core/netpoll.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 3ae899805f8b..de1d1ba92f2d 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -312,6 +312,7 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb, /* It is up to the caller to keep npinfo alive. */ struct netpoll_info *npinfo; + rcu_read_lock_bh(); lockdep_assert_irqs_disabled(); npinfo = rcu_dereference_bh(np->dev->npinfo); @@ -356,6 +357,7 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb, skb_queue_tail(&npinfo->txq, skb); schedule_delayed_work(&npinfo->tx_work,0); } + rcu_read_unlock_bh(); } EXPORT_SYMBOL(netpoll_send_skb_on_dev); From 06e55addd3f40b5294e448c2cb7605ca4f28c2e3 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 28 Sep 2018 14:51:47 -0700 Subject: [PATCH 1498/1762] tun: remove unused parameters tun_napi_disable() and tun_napi_del() do not need a pointer to the tun_struct Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/tun.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index e2648b5a3861..71d10fb59849 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -324,13 +324,13 @@ static void tun_napi_init(struct tun_struct *tun, struct tun_file *tfile, } } -static void tun_napi_disable(struct tun_struct *tun, struct tun_file *tfile) +static void tun_napi_disable(struct tun_file *tfile) { if (tfile->napi_enabled) napi_disable(&tfile->napi); } -static void tun_napi_del(struct tun_struct *tun, struct tun_file *tfile) +static void tun_napi_del(struct tun_file *tfile) { if (tfile->napi_enabled) netif_napi_del(&tfile->napi); @@ -690,8 +690,8 @@ static void __tun_detach(struct tun_file *tfile, bool clean) tun = rtnl_dereference(tfile->tun); if (tun && clean) { - tun_napi_disable(tun, tfile); - tun_napi_del(tun, tfile); + tun_napi_disable(tfile); + tun_napi_del(tfile); } if (tun && !tfile->detached) { @@ -758,7 +758,7 @@ static void tun_detach_all(struct net_device *dev) for (i = 0; i < n; i++) { tfile = rtnl_dereference(tun->tfiles[i]); BUG_ON(!tfile); - tun_napi_disable(tun, tfile); + tun_napi_disable(tfile); tfile->socket.sk->sk_shutdown = RCV_SHUTDOWN; tfile->socket.sk->sk_data_ready(tfile->socket.sk); RCU_INIT_POINTER(tfile->tun, NULL); @@ -774,7 +774,7 @@ static void tun_detach_all(struct net_device *dev) synchronize_net(); for (i = 0; i < n; i++) { tfile = rtnl_dereference(tun->tfiles[i]); - tun_napi_del(tun, tfile); + tun_napi_del(tfile); /* Drop read queue */ tun_queue_purge(tfile); xdp_rxq_info_unreg(&tfile->xdp_rxq); From c7256f579f8302ce2c038181c30060d0b40017b2 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 28 Sep 2018 14:51:48 -0700 Subject: [PATCH 1499/1762] tun: initialize napi_mutex unconditionally This is the first part to fix following syzbot report : console output: https://syzkaller.appspot.com/x/log.txt?x=145378e6400000 kernel config: https://syzkaller.appspot.com/x/.config?x=443816db871edd66 dashboard link: https://syzkaller.appspot.com/bug?extid=e662df0ac1d753b57e80 Following patch is fixing the race condition, but it seems safer to initialize this mutex at tfile creation anyway. Fixes: 90e33d459407 ("tun: enable napi_gro_frags() for TUN/TAP driver") Signed-off-by: Eric Dumazet Reported-by: syzbot+e662df0ac1d753b57e80@syzkaller.appspotmail.com Signed-off-by: David S. Miller --- drivers/net/tun.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 71d10fb59849..729686babbf3 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -320,7 +320,6 @@ static void tun_napi_init(struct tun_struct *tun, struct tun_file *tfile, netif_napi_add(tun->dev, &tfile->napi, tun_napi_poll, NAPI_POLL_WEIGHT); napi_enable(&tfile->napi); - mutex_init(&tfile->napi_mutex); } } @@ -3199,6 +3198,7 @@ static int tun_chr_open(struct inode *inode, struct file * file) return -ENOMEM; } + mutex_init(&tfile->napi_mutex); RCU_INIT_POINTER(tfile->tun, NULL); tfile->flags = 0; tfile->ifindex = 0; From af3fb24eecb2c59246e03c99386037fd5ad84ffd Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 28 Sep 2018 14:51:49 -0700 Subject: [PATCH 1500/1762] tun: napi flags belong to tfile Since tun->flags might be shared by multiple tfile structures, it is better to make sure tun_get_user() is using the flags for the current tfile. Presence of the READ_ONCE() in tun_napi_frags_enabled() gave a hint of what could happen, but we need something stronger to please syzbot. kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 13647 Comm: syz-executor5 Not tainted 4.19.0-rc5+ #59 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:dev_gro_receive+0x132/0x2720 net/core/dev.c:5427 Code: 48 c1 ea 03 80 3c 02 00 0f 85 6e 20 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6e 10 49 8d bd d0 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 59 20 00 00 4d 8b a5 d0 00 00 00 31 ff 41 81 e4 RSP: 0018:ffff8801c400f410 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8618d325 RDX: 000000000000001a RSI: ffffffff86189f97 RDI: 00000000000000d0 RBP: ffff8801c400f608 R08: ffff8801c8fb4300 R09: 0000000000000000 R10: ffffed0038801ed7 R11: 0000000000000003 R12: ffff8801d327d358 R13: 0000000000000000 R14: ffff8801c16dd8c0 R15: 0000000000000004 FS: 00007fe003615700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe1f3c43db8 CR3: 00000001bebb2000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: napi_gro_frags+0x3f4/0xc90 net/core/dev.c:5715 tun_get_user+0x31d5/0x42a0 drivers/net/tun.c:1922 tun_chr_write_iter+0xb9/0x154 drivers/net/tun.c:1967 call_write_iter include/linux/fs.h:1808 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x6b8/0x9f0 fs/read_write.c:487 vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe003614c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000000000012 RSI: 0000000020000000 RDI: 000000000000000a RBP: 000000000072c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe0036156d4 R13: 00000000004c5574 R14: 00000000004d8e98 R15: 00000000ffffffff Modules linked in: RIP: 0010:dev_gro_receive+0x132/0x2720 net/core/dev.c:5427 Code: 48 c1 ea 03 80 3c 02 00 0f 85 6e 20 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6e 10 49 8d bd d0 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 59 20 00 00 4d 8b a5 d0 00 00 00 31 ff 41 81 e4 RSP: 0018:ffff8801c400f410 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8618d325 RDX: 000000000000001a RSI: ffffffff86189f97 RDI: 00000000000000d0 RBP: ffff8801c400f608 R08: ffff8801c8fb4300 R09: 0000000000000000 R10: ffffed0038801ed7 R11: 0000000000000003 R12: ffff8801d327d358 R13: 0000000000000000 R14: ffff8801c16dd8c0 R15: 0000000000000004 FS: 00007fe003615700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe1f3c43db8 CR3: 00000001bebb2000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Fixes: 90e33d459407 ("tun: enable napi_gro_frags() for TUN/TAP driver") Signed-off-by: Eric Dumazet Reported-by: syzbot Signed-off-by: David S. Miller --- drivers/net/tun.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 729686babbf3..50e9cc19023a 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -181,6 +181,7 @@ struct tun_file { }; struct napi_struct napi; bool napi_enabled; + bool napi_frags_enabled; struct mutex napi_mutex; /* Protects access to the above napi */ struct list_head next; struct tun_struct *detached; @@ -313,9 +314,10 @@ static int tun_napi_poll(struct napi_struct *napi, int budget) } static void tun_napi_init(struct tun_struct *tun, struct tun_file *tfile, - bool napi_en) + bool napi_en, bool napi_frags) { tfile->napi_enabled = napi_en; + tfile->napi_frags_enabled = napi_en && napi_frags; if (napi_en) { netif_napi_add(tun->dev, &tfile->napi, tun_napi_poll, NAPI_POLL_WEIGHT); @@ -335,9 +337,9 @@ static void tun_napi_del(struct tun_file *tfile) netif_napi_del(&tfile->napi); } -static bool tun_napi_frags_enabled(const struct tun_struct *tun) +static bool tun_napi_frags_enabled(const struct tun_file *tfile) { - return READ_ONCE(tun->flags) & IFF_NAPI_FRAGS; + return tfile->napi_frags_enabled; } #ifdef CONFIG_TUN_VNET_CROSS_LE @@ -792,7 +794,7 @@ static void tun_detach_all(struct net_device *dev) } static int tun_attach(struct tun_struct *tun, struct file *file, - bool skip_filter, bool napi) + bool skip_filter, bool napi, bool napi_frags) { struct tun_file *tfile = file->private_data; struct net_device *dev = tun->dev; @@ -865,7 +867,7 @@ static int tun_attach(struct tun_struct *tun, struct file *file, tun_enable_queue(tfile); } else { sock_hold(&tfile->sk); - tun_napi_init(tun, tfile, napi); + tun_napi_init(tun, tfile, napi, napi_frags); } tun_set_real_num_queues(tun); @@ -1708,7 +1710,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, int err; u32 rxhash = 0; int skb_xdp = 1; - bool frags = tun_napi_frags_enabled(tun); + bool frags = tun_napi_frags_enabled(tfile); if (!(tun->dev->flags & IFF_UP)) return -EIO; @@ -2533,7 +2535,8 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) return err; err = tun_attach(tun, file, ifr->ifr_flags & IFF_NOFILTER, - ifr->ifr_flags & IFF_NAPI); + ifr->ifr_flags & IFF_NAPI, + ifr->ifr_flags & IFF_NAPI_FRAGS); if (err < 0) return err; @@ -2631,7 +2634,8 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) (ifr->ifr_flags & TUN_FEATURES); INIT_LIST_HEAD(&tun->disabled); - err = tun_attach(tun, file, false, ifr->ifr_flags & IFF_NAPI); + err = tun_attach(tun, file, false, ifr->ifr_flags & IFF_NAPI, + ifr->ifr_flags & IFF_NAPI_FRAGS); if (err < 0) goto err_free_flow; @@ -2780,7 +2784,8 @@ static int tun_set_queue(struct file *file, struct ifreq *ifr) ret = security_tun_dev_attach_queue(tun->security); if (ret < 0) goto unlock; - ret = tun_attach(tun, file, false, tun->flags & IFF_NAPI); + ret = tun_attach(tun, file, false, tun->flags & IFF_NAPI, + tun->flags & IFF_NAPI_FRAGS); } else if (ifr->ifr_flags & IFF_DETACH_QUEUE) { tun = rtnl_dereference(tfile->tun); if (!tun || !(tun->flags & IFF_MULTI_QUEUE) || tfile->detached) From 715bd9d12f84d8f5cc8ad21d888f9bc304a8eb0b Mon Sep 17 00:00:00 2001 From: Andy Lutomirski Date: Mon, 1 Oct 2018 12:52:15 -0700 Subject: [PATCH 1501/1762] x86/vdso: Fix asm constraints on vDSO syscall fallbacks The syscall fallbacks in the vDSO have incorrect asm constraints. They are not marked as writing to their outputs -- instead, they are marked as clobbering "memory", which is useless. In particular, gcc is smart enough to know that the timespec parameter hasn't escaped, so a memory clobber doesn't clobber it. And passing a pointer as an asm *input* does not tell gcc that the pointed-to value is changed. Add in the fact that the asm instructions weren't volatile, and gcc was free to omit them entirely unless their sole output (the return value) is used. Which it is (phew!), but that stops happening with some upcoming patches. As a trivial example, the following code: void test_fallback(struct timespec *ts) { vdso_fallback_gettime(CLOCK_MONOTONIC, ts); } compiles to: 00000000000000c0 : c0: c3 retq To add insult to injury, the RCX and R11 clobbers on 64-bit builds were missing. The "memory" clobber is also unnecessary -- no ordering with respect to other memory operations is needed, but that's going to be fixed in a separate not-for-stable patch. Fixes: 2aae950b21e4 ("x86_64: Add vDSO for x86-64 with gettimeofday/clock_gettime/getcpu") Signed-off-by: Andy Lutomirski Signed-off-by: Thomas Gleixner Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/2c0231690551989d2fafa60ed0e7b5cc8b403908.1538422295.git.luto@kernel.org --- arch/x86/entry/vdso/vclock_gettime.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/arch/x86/entry/vdso/vclock_gettime.c b/arch/x86/entry/vdso/vclock_gettime.c index f19856d95c60..134e2d2e8add 100644 --- a/arch/x86/entry/vdso/vclock_gettime.c +++ b/arch/x86/entry/vdso/vclock_gettime.c @@ -43,8 +43,9 @@ extern u8 hvclock_page notrace static long vdso_fallback_gettime(long clock, struct timespec *ts) { long ret; - asm("syscall" : "=a" (ret) : - "0" (__NR_clock_gettime), "D" (clock), "S" (ts) : "memory"); + asm ("syscall" : "=a" (ret), "=m" (*ts) : + "0" (__NR_clock_gettime), "D" (clock), "S" (ts) : + "memory", "rcx", "r11"); return ret; } @@ -52,8 +53,9 @@ notrace static long vdso_fallback_gtod(struct timeval *tv, struct timezone *tz) { long ret; - asm("syscall" : "=a" (ret) : - "0" (__NR_gettimeofday), "D" (tv), "S" (tz) : "memory"); + asm ("syscall" : "=a" (ret), "=m" (*tv), "=m" (*tz) : + "0" (__NR_gettimeofday), "D" (tv), "S" (tz) : + "memory", "rcx", "r11"); return ret; } @@ -64,12 +66,12 @@ notrace static long vdso_fallback_gettime(long clock, struct timespec *ts) { long ret; - asm( + asm ( "mov %%ebx, %%edx \n" "mov %2, %%ebx \n" "call __kernel_vsyscall \n" "mov %%edx, %%ebx \n" - : "=a" (ret) + : "=a" (ret), "=m" (*ts) : "0" (__NR_clock_gettime), "g" (clock), "c" (ts) : "memory", "edx"); return ret; @@ -79,12 +81,12 @@ notrace static long vdso_fallback_gtod(struct timeval *tv, struct timezone *tz) { long ret; - asm( + asm ( "mov %%ebx, %%edx \n" "mov %2, %%ebx \n" "call __kernel_vsyscall \n" "mov %%edx, %%ebx \n" - : "=a" (ret) + : "=a" (ret), "=m" (*tv), "=m" (*tz) : "0" (__NR_gettimeofday), "g" (tv), "c" (tz) : "memory", "edx"); return ret; From ad5f97faff4231e72b96bd96adbe1b6e977a9b86 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Fri, 28 Sep 2018 23:51:54 +0200 Subject: [PATCH 1502/1762] r8169: fix network stalls due to missing bit TXCFG_AUTO_FIFO MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some of the chip-specific hw_start functions set bit TXCFG_AUTO_FIFO in register TxConfig. The original patch changed the order of some calls resulting in these changes being overwritten by rtl_set_tx_config_registers() in rtl_hw_start(). This eventually resulted in network stalls especially under high load. Analyzing the chip-specific hw_start functions all chip version from 34, with the exception of version 39, need this bit set. This patch moves setting this bit to rtl_set_tx_config_registers(). Fixes: 4fd48c4ac0a0 ("r8169: move common initializations to tp->hw_start") Reported-by: Ortwin Glück Reported-by: David Arendt Root-caused-by: Maciej S. Szmigiero Tested-by: Tony Atkinson Tested-by: David Arendt Tested-by: Ortwin Glück Signed-off-by: Heiner Kallweit Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index d6b53f53909a..a94b874982dc 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -4536,9 +4536,14 @@ static void rtl8169_hw_reset(struct rtl8169_private *tp) static void rtl_set_tx_config_registers(struct rtl8169_private *tp) { - /* Set DMA burst size and Interframe Gap Time */ - RTL_W32(tp, TxConfig, (TX_DMA_BURST << TxDMAShift) | - (InterFrameGap << TxInterFrameGapShift)); + u32 val = TX_DMA_BURST << TxDMAShift | + InterFrameGap << TxInterFrameGapShift; + + if (tp->mac_version >= RTL_GIGA_MAC_VER_34 && + tp->mac_version != RTL_GIGA_MAC_VER_39) + val |= TXCFG_AUTO_FIFO; + + RTL_W32(tp, TxConfig, val); } static void rtl_set_rx_max_size(struct rtl8169_private *tp) @@ -5033,7 +5038,6 @@ static void rtl_hw_start_8168e_2(struct rtl8169_private *tp) rtl_disable_clock_request(tp); - RTL_W32(tp, TxConfig, RTL_R32(tp, TxConfig) | TXCFG_AUTO_FIFO); RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB); /* Adjust EEE LED frequency */ @@ -5067,7 +5071,6 @@ static void rtl_hw_start_8168f(struct rtl8169_private *tp) rtl_disable_clock_request(tp); - RTL_W32(tp, TxConfig, RTL_R32(tp, TxConfig) | TXCFG_AUTO_FIFO); RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB); RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN); RTL_W32(tp, MISC, RTL_R32(tp, MISC) | PWM_EN); @@ -5112,8 +5115,6 @@ static void rtl_hw_start_8411(struct rtl8169_private *tp) static void rtl_hw_start_8168g(struct rtl8169_private *tp) { - RTL_W32(tp, TxConfig, RTL_R32(tp, TxConfig) | TXCFG_AUTO_FIFO); - rtl_eri_write(tp, 0xc8, ERIAR_MASK_0101, 0x080002, ERIAR_EXGMAC); rtl_eri_write(tp, 0xcc, ERIAR_MASK_0001, 0x38, ERIAR_EXGMAC); rtl_eri_write(tp, 0xd0, ERIAR_MASK_0001, 0x48, ERIAR_EXGMAC); @@ -5211,8 +5212,6 @@ static void rtl_hw_start_8168h_1(struct rtl8169_private *tp) rtl_hw_aspm_clkreq_enable(tp, false); rtl_ephy_init(tp, e_info_8168h_1, ARRAY_SIZE(e_info_8168h_1)); - RTL_W32(tp, TxConfig, RTL_R32(tp, TxConfig) | TXCFG_AUTO_FIFO); - rtl_eri_write(tp, 0xc8, ERIAR_MASK_0101, 0x00080002, ERIAR_EXGMAC); rtl_eri_write(tp, 0xcc, ERIAR_MASK_0001, 0x38, ERIAR_EXGMAC); rtl_eri_write(tp, 0xd0, ERIAR_MASK_0001, 0x48, ERIAR_EXGMAC); @@ -5295,8 +5294,6 @@ static void rtl_hw_start_8168ep(struct rtl8169_private *tp) { rtl8168ep_stop_cmac(tp); - RTL_W32(tp, TxConfig, RTL_R32(tp, TxConfig) | TXCFG_AUTO_FIFO); - rtl_eri_write(tp, 0xc8, ERIAR_MASK_0101, 0x00080002, ERIAR_EXGMAC); rtl_eri_write(tp, 0xcc, ERIAR_MASK_0001, 0x2f, ERIAR_EXGMAC); rtl_eri_write(tp, 0xd0, ERIAR_MASK_0001, 0x5f, ERIAR_EXGMAC); @@ -5618,7 +5615,6 @@ static void rtl_hw_start_8402(struct rtl8169_private *tp) /* Force LAN exit from ASPM if Rx/Tx are not idle */ RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800); - RTL_W32(tp, TxConfig, RTL_R32(tp, TxConfig) | TXCFG_AUTO_FIFO); RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB); rtl_ephy_init(tp, e_info_8402, ARRAY_SIZE(e_info_8402)); From 7c03e7035ac1cf2a6165754e4f3a49c2f1977838 Mon Sep 17 00:00:00 2001 From: Andy Lutomirski Date: Mon, 1 Oct 2018 12:52:16 -0700 Subject: [PATCH 1503/1762] selftests/x86: Add clock_gettime() tests to test_vdso Now that the vDSO implementation of clock_gettime() is getting reworked, add a selftest for it. This tests that its output is consistent with the syscall version. This is marked for stable to serve as a test for commit 715bd9d12f84 ("x86/vdso: Fix asm constraints on vDSO syscall fallbacks") Signed-off-by: Andy Lutomirski Signed-off-by: Thomas Gleixner Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/082399674de2619b2befd8c0dde49b260605b126.1538422295.git.luto@kernel.org --- tools/testing/selftests/x86/test_vdso.c | 99 +++++++++++++++++++++++++ 1 file changed, 99 insertions(+) diff --git a/tools/testing/selftests/x86/test_vdso.c b/tools/testing/selftests/x86/test_vdso.c index 235259011704..49f7294fb382 100644 --- a/tools/testing/selftests/x86/test_vdso.c +++ b/tools/testing/selftests/x86/test_vdso.c @@ -17,6 +17,7 @@ #include #include #include +#include #ifndef SYS_getcpu # ifdef __x86_64__ @@ -31,6 +32,10 @@ int nerrs = 0; +typedef int (*vgettime_t)(clockid_t, struct timespec *); + +vgettime_t vdso_clock_gettime; + typedef long (*getcpu_t)(unsigned *, unsigned *, void *); getcpu_t vgetcpu; @@ -95,6 +100,10 @@ static void fill_function_pointers() printf("Warning: failed to find getcpu in vDSO\n"); vgetcpu = (getcpu_t) vsyscall_getcpu(); + + vdso_clock_gettime = (vgettime_t)dlsym(vdso, "__vdso_clock_gettime"); + if (!vdso_clock_gettime) + printf("Warning: failed to find clock_gettime in vDSO\n"); } static long sys_getcpu(unsigned * cpu, unsigned * node, @@ -103,6 +112,11 @@ static long sys_getcpu(unsigned * cpu, unsigned * node, return syscall(__NR_getcpu, cpu, node, cache); } +static inline int sys_clock_gettime(clockid_t id, struct timespec *ts) +{ + return syscall(__NR_clock_gettime, id, ts); +} + static void test_getcpu(void) { printf("[RUN]\tTesting getcpu...\n"); @@ -155,10 +169,95 @@ static void test_getcpu(void) } } +static bool ts_leq(const struct timespec *a, const struct timespec *b) +{ + if (a->tv_sec != b->tv_sec) + return a->tv_sec < b->tv_sec; + else + return a->tv_nsec <= b->tv_nsec; +} + +static char const * const clocknames[] = { + [0] = "CLOCK_REALTIME", + [1] = "CLOCK_MONOTONIC", + [2] = "CLOCK_PROCESS_CPUTIME_ID", + [3] = "CLOCK_THREAD_CPUTIME_ID", + [4] = "CLOCK_MONOTONIC_RAW", + [5] = "CLOCK_REALTIME_COARSE", + [6] = "CLOCK_MONOTONIC_COARSE", + [7] = "CLOCK_BOOTTIME", + [8] = "CLOCK_REALTIME_ALARM", + [9] = "CLOCK_BOOTTIME_ALARM", + [10] = "CLOCK_SGI_CYCLE", + [11] = "CLOCK_TAI", +}; + +static void test_one_clock_gettime(int clock, const char *name) +{ + struct timespec start, vdso, end; + int vdso_ret, end_ret; + + printf("[RUN]\tTesting clock_gettime for clock %s (%d)...\n", name, clock); + + if (sys_clock_gettime(clock, &start) < 0) { + if (errno == EINVAL) { + vdso_ret = vdso_clock_gettime(clock, &vdso); + if (vdso_ret == -EINVAL) { + printf("[OK]\tNo such clock.\n"); + } else { + printf("[FAIL]\tNo such clock, but __vdso_clock_gettime returned %d\n", vdso_ret); + nerrs++; + } + } else { + printf("[WARN]\t clock_gettime(%d) syscall returned error %d\n", clock, errno); + } + return; + } + + vdso_ret = vdso_clock_gettime(clock, &vdso); + end_ret = sys_clock_gettime(clock, &end); + + if (vdso_ret != 0 || end_ret != 0) { + printf("[FAIL]\tvDSO returned %d, syscall errno=%d\n", + vdso_ret, errno); + nerrs++; + return; + } + + printf("\t%llu.%09ld %llu.%09ld %llu.%09ld\n", + (unsigned long long)start.tv_sec, start.tv_nsec, + (unsigned long long)vdso.tv_sec, vdso.tv_nsec, + (unsigned long long)end.tv_sec, end.tv_nsec); + + if (!ts_leq(&start, &vdso) || !ts_leq(&vdso, &end)) { + printf("[FAIL]\tTimes are out of sequence\n"); + nerrs++; + } +} + +static void test_clock_gettime(void) +{ + for (int clock = 0; clock < sizeof(clocknames) / sizeof(clocknames[0]); + clock++) { + test_one_clock_gettime(clock, clocknames[clock]); + } + + /* Also test some invalid clock ids */ + test_one_clock_gettime(-1, "invalid"); + test_one_clock_gettime(INT_MIN, "invalid"); + test_one_clock_gettime(INT_MAX, "invalid"); +} + int main(int argc, char **argv) { fill_function_pointers(); + test_clock_gettime(); + + /* + * Test getcpu() last so that, if something goes wrong setting affinity, + * we still run the other tests. + */ test_getcpu(); return nerrs ? 1 : 0; From a9f9772114c8b07ae75bcb3654bd017461248095 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 25 Sep 2018 17:58:35 +0200 Subject: [PATCH 1504/1762] perf/core: Fix perf_pmu_unregister() locking When we unregister a PMU, we fail to serialize the @pmu_idr properly. Fix that by doing the entire thing under pmu_lock. Signed-off-by: Peter Zijlstra (Intel) Cc: Alexander Shishkin Cc: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Gleixner Cc: Vince Weaver Fixes: 2e80a82a49c4 ("perf: Dynamic pmu types") Signed-off-by: Ingo Molnar --- kernel/events/core.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index dcb093e7b377..dfb1d951789e 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -9431,9 +9431,7 @@ static void free_pmu_context(struct pmu *pmu) if (pmu->task_ctx_nr > perf_invalid_context) return; - mutex_lock(&pmus_lock); free_percpu(pmu->pmu_cpu_context); - mutex_unlock(&pmus_lock); } /* @@ -9689,12 +9687,8 @@ EXPORT_SYMBOL_GPL(perf_pmu_register); void perf_pmu_unregister(struct pmu *pmu) { - int remove_device; - mutex_lock(&pmus_lock); - remove_device = pmu_bus_running; list_del_rcu(&pmu->entry); - mutex_unlock(&pmus_lock); /* * We dereference the pmu list under both SRCU and regular RCU, so @@ -9706,13 +9700,14 @@ void perf_pmu_unregister(struct pmu *pmu) free_percpu(pmu->pmu_disable_count); if (pmu->type >= PERF_TYPE_MAX) idr_remove(&pmu_idr, pmu->type); - if (remove_device) { + if (pmu_bus_running) { if (pmu->nr_addr_filters) device_remove_file(pmu->dev, &dev_attr_nr_addr_filters); device_del(pmu->dev); put_device(pmu->dev); } free_pmu_context(pmu); + mutex_unlock(&pmus_lock); } EXPORT_SYMBOL_GPL(perf_pmu_unregister); From 6265adb9726098b7f4f7ca70bc51992b25fdd9d6 Mon Sep 17 00:00:00 2001 From: Masayoshi Mizuma Date: Mon, 10 Sep 2018 10:47:50 -0400 Subject: [PATCH 1505/1762] perf/x86/intel/uncore: Use boot_cpu_data.phys_proc_id instead of hardcorded physical package ID 0 Physical package id 0 doesn't always exist, we should use boot_cpu_data.phys_proc_id here. Signed-off-by: Masayoshi Mizuma Signed-off-by: Peter Zijlstra (Intel) Cc: Alexander Shishkin Cc: Arnaldo Carvalho de Melo Cc: H. Peter Anvin Cc: Jiri Olsa Cc: Linus Torvalds Cc: Masayoshi Mizuma Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Gleixner Cc: Vince Weaver Link: http://lkml.kernel.org/r/20180910144750.6782-1-msys.mizuma@gmail.com Signed-off-by: Ingo Molnar --- arch/x86/events/intel/uncore_snbep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c index 51d7c117e3c7..53b981dcdb42 100644 --- a/arch/x86/events/intel/uncore_snbep.c +++ b/arch/x86/events/intel/uncore_snbep.c @@ -3061,7 +3061,7 @@ static struct event_constraint bdx_uncore_pcu_constraints[] = { void bdx_uncore_cpu_init(void) { - int pkg = topology_phys_to_logical_pkg(0); + int pkg = topology_phys_to_logical_pkg(boot_cpu_data.phys_proc_id); if (bdx_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores) bdx_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores; From cd6fb677ce7e460c25bdd66f689734102ec7d642 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Sun, 23 Sep 2018 18:13:43 +0200 Subject: [PATCH 1506/1762] perf/ring_buffer: Prevent concurent ring buffer access Some of the scheduling tracepoints allow the perf_tp_event code to write to ring buffer under different cpu than the code is running on. This results in corrupted ring buffer data demonstrated in following perf commands: # perf record -e 'sched:sched_switch,sched:sched_wakeup' perf bench sched messaging # Running 'sched/messaging' benchmark: # 20 sender and receiver processes per group # 10 groups == 400 processes run Total time: 0.383 [sec] [ perf record: Woken up 8 times to write data ] 0x42b890 [0]: failed to process type: -1765585640 [ perf record: Captured and wrote 4.825 MB perf.data (29669 samples) ] # perf report --stdio 0x42b890 [0]: failed to process type: -1765585640 The reason for the corruption are some of the scheduling tracepoints, that have __perf_task dfined and thus allow to store data to another cpu ring buffer: sched_waking sched_wakeup sched_wakeup_new sched_stat_wait sched_stat_sleep sched_stat_iowait sched_stat_blocked The perf_tp_event function first store samples for current cpu related events defined for tracepoint: hlist_for_each_entry_rcu(event, head, hlist_entry) perf_swevent_event(event, count, &data, regs); And then iterates events of the 'task' and store the sample for any task's event that passes tracepoint checks: ctx = rcu_dereference(task->perf_event_ctxp[perf_sw_context]); list_for_each_entry_rcu(event, &ctx->event_list, event_entry) { if (event->attr.type != PERF_TYPE_TRACEPOINT) continue; if (event->attr.config != entry->type) continue; perf_swevent_event(event, count, &data, regs); } Above code can race with same code running on another cpu, ending up with 2 cpus trying to store under the same ring buffer, which is specifically not allowed. This patch prevents the problem, by allowing only events with the same current cpu to receive the event. NOTE: this requires the use of (per-task-)per-cpu buffers for this feature to work; perf-record does this. Signed-off-by: Jiri Olsa [peterz: small edits to Changelog] Signed-off-by: Peter Zijlstra (Intel) Cc: Alexander Shishkin Cc: Andrew Vagin Cc: Arnaldo Carvalho de Melo Cc: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Linus Torvalds Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Gleixner Cc: Vince Weaver Fixes: e6dab5ffab59 ("perf/trace: Add ability to set a target task for events") Link: http://lkml.kernel.org/r/20180923161343.GB15054@krava Signed-off-by: Ingo Molnar --- kernel/events/core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/events/core.c b/kernel/events/core.c index dfb1d951789e..5a97f34bc14c 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -8314,6 +8314,8 @@ void perf_tp_event(u16 event_type, u64 count, void *record, int entry_size, goto unlock; list_for_each_entry_rcu(event, &ctx->event_list, event_entry) { + if (event->cpu != smp_processor_id()) + continue; if (event->attr.type != PERF_TYPE_TRACEPOINT) continue; if (event->attr.config != entry->type) From 9d92cfeaf5215158d26d2991be7f7ff865cb98f3 Mon Sep 17 00:00:00 2001 From: Kan Liang Date: Fri, 21 Sep 2018 07:07:06 -0700 Subject: [PATCH 1507/1762] perf/x86/intel/uncore: Fix PCI BDF address of M3UPI on SKX The counters on M3UPI Link 0 and Link 3 don't count properly, and writing 0 to these counters may causes system crash on some machines. The PCI BDF addresses of the M3UPI in the current code are incorrect. The correct addresses should be: D18:F1 0x204D D18:F2 0x204E D18:F5 0x204D Signed-off-by: Kan Liang Signed-off-by: Peter Zijlstra (Intel) Cc: Alexander Shishkin Cc: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Gleixner Cc: Vince Weaver Fixes: cd34cd97b7b4 ("perf/x86/intel/uncore: Add Skylake server uncore support") Link: http://lkml.kernel.org/r/1537538826-55489-1-git-send-email-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar --- arch/x86/events/intel/uncore_snbep.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c index 53b981dcdb42..c07bee31abe8 100644 --- a/arch/x86/events/intel/uncore_snbep.c +++ b/arch/x86/events/intel/uncore_snbep.c @@ -3931,16 +3931,16 @@ static const struct pci_device_id skx_uncore_pci_ids[] = { .driver_data = UNCORE_PCI_DEV_FULL_DATA(21, 5, SKX_PCI_UNCORE_M2PCIE, 3), }, { /* M3UPI0 Link 0 */ - PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204C), - .driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 0, SKX_PCI_UNCORE_M3UPI, 0), + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204D), + .driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 1, SKX_PCI_UNCORE_M3UPI, 0), }, { /* M3UPI0 Link 1 */ - PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204D), - .driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 1, SKX_PCI_UNCORE_M3UPI, 1), + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204E), + .driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 2, SKX_PCI_UNCORE_M3UPI, 1), }, { /* M3UPI1 Link 2 */ - PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204C), - .driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 4, SKX_PCI_UNCORE_M3UPI, 2), + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204D), + .driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 5, SKX_PCI_UNCORE_M3UPI, 2), }, { /* end: all zeroes */ } }; From d7cbbe49a9304520181fb8c9272d1327deec8453 Mon Sep 17 00:00:00 2001 From: "Natarajan, Janakarajan" Date: Thu, 27 Sep 2018 15:51:55 +0000 Subject: [PATCH 1508/1762] perf/x86/amd/uncore: Set ThreadMask and SliceMask for L3 Cache perf events In Family 17h, some L3 Cache Performance events require the ThreadMask and SliceMask to be set. For other events, these fields do not affect the count either way. Set ThreadMask and SliceMask to 0xFF and 0xF respectively. Signed-off-by: Janakarajan Natarajan Signed-off-by: Peter Zijlstra (Intel) Cc: Alexander Shishkin Cc: Arnaldo Carvalho de Melo Cc: Arnaldo Carvalho de Melo Cc: Borislav Petkov Cc: H . Peter Anvin Cc: Jiri Olsa Cc: Linus Torvalds Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Suravee Cc: Thomas Gleixner Cc: Vince Weaver Link: http://lkml.kernel.org/r/Message-ID: Signed-off-by: Ingo Molnar --- arch/x86/events/amd/uncore.c | 10 ++++++++++ arch/x86/include/asm/perf_event.h | 8 ++++++++ 2 files changed, 18 insertions(+) diff --git a/arch/x86/events/amd/uncore.c b/arch/x86/events/amd/uncore.c index 981ba5e8241b..8671de126eac 100644 --- a/arch/x86/events/amd/uncore.c +++ b/arch/x86/events/amd/uncore.c @@ -36,6 +36,7 @@ static int num_counters_llc; static int num_counters_nb; +static bool l3_mask; static HLIST_HEAD(uncore_unused_list); @@ -209,6 +210,13 @@ static int amd_uncore_event_init(struct perf_event *event) hwc->config = event->attr.config & AMD64_RAW_EVENT_MASK_NB; hwc->idx = -1; + /* + * SliceMask and ThreadMask need to be set for certain L3 events in + * Family 17h. For other events, the two fields do not affect the count. + */ + if (l3_mask) + hwc->config |= (AMD64_L3_SLICE_MASK | AMD64_L3_THREAD_MASK); + if (event->cpu < 0) return -EINVAL; @@ -525,6 +533,7 @@ static int __init amd_uncore_init(void) amd_llc_pmu.name = "amd_l3"; format_attr_event_df.show = &event_show_df; format_attr_event_l3.show = &event_show_l3; + l3_mask = true; } else { num_counters_nb = NUM_COUNTERS_NB; num_counters_llc = NUM_COUNTERS_L2; @@ -532,6 +541,7 @@ static int __init amd_uncore_init(void) amd_llc_pmu.name = "amd_l2"; format_attr_event_df = format_attr_event; format_attr_event_l3 = format_attr_event; + l3_mask = false; } amd_nb_pmu.attr_groups = amd_uncore_attr_groups_df; diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h index 12f54082f4c8..78241b736f2a 100644 --- a/arch/x86/include/asm/perf_event.h +++ b/arch/x86/include/asm/perf_event.h @@ -46,6 +46,14 @@ #define INTEL_ARCH_EVENT_MASK \ (ARCH_PERFMON_EVENTSEL_UMASK | ARCH_PERFMON_EVENTSEL_EVENT) +#define AMD64_L3_SLICE_SHIFT 48 +#define AMD64_L3_SLICE_MASK \ + ((0xFULL) << AMD64_L3_SLICE_SHIFT) + +#define AMD64_L3_THREAD_SHIFT 56 +#define AMD64_L3_THREAD_MASK \ + ((0xFFULL) << AMD64_L3_THREAD_SHIFT) + #define X86_RAW_EVENT_MASK \ (ARCH_PERFMON_EVENTSEL_EVENT | \ ARCH_PERFMON_EVENTSEL_UMASK | \ From a4739eca4456e3d140cc656c5331d42b7465f91d Mon Sep 17 00:00:00 2001 From: Srikar Dronamraju Date: Fri, 21 Sep 2018 23:18:56 +0530 Subject: [PATCH 1509/1762] sched/numa: Stop multiple tasks from moving to the CPU at the same time Task migration under NUMA balancing can happen in parallel. More than one task might choose to migrate to the same CPU at the same time. This can result in: - During task swap, choosing a task that was not part of the evaluation. - During task swap, task which just got moved into its preferred node, moving to a completely different node. - During task swap, task failing to move to the preferred node, will have to wait an extra interval for the next migrate opportunity. - During task movement, multiple task movements can cause load imbalance. This problem is more likely if there are more cores per node or more nodes in the system. Use a per run-queue variable to check if NUMA-balance is active on the run-queue. Specjbb2005 results (8 warehouses) Higher bops are better 2 Socket - 2 Node Haswell - X86 JVMS Prev Current %Change 4 200194 203353 1.57797 1 311331 328205 5.41995 2 Socket - 4 Node Power8 - PowerNV JVMS Prev Current %Change 1 197654 214384 8.46429 2 Socket - 2 Node Power9 - PowerNV JVMS Prev Current %Change 4 192605 188553 -2.10379 1 213402 196273 -8.02664 4 Socket - 4 Node Power7 - PowerVM JVMS Prev Current %Change 8 52227.1 57581.2 10.2516 1 102529 103468 0.915838 There is a regression on power 9 box. If we look at the details, that box has a sudden jump in cache-misses with this patch. All other parameters seem to be pointing towards NUMA consolidation. perf stats 8th warehouse Multi JVM 2 Socket - 2 Node Haswell - X86 Event Before After cs 13,345,784 13,941,377 migrations 1,127,820 1,157,323 faults 374,736 382,175 cache-misses 55,132,054,603 54,993,823,500 sched:sched_move_numa 1,923 2,005 sched:sched_stick_numa 52 14 sched:sched_swap_numa 595 529 migrate:mm_migrate_pages 1,932 1,573 vmstat 8th warehouse Multi JVM 2 Socket - 2 Node Haswell - X86 Event Before After numa_hint_faults 60605 67099 numa_hint_faults_local 51804 58456 numa_hit 239945 240416 numa_huge_pte_updates 14 18 numa_interleave 60 65 numa_local 239865 240339 numa_other 80 77 numa_pages_migrated 1931 1574 numa_pte_updates 67823 77182 perf stats 8th warehouse Single JVM 2 Socket - 2 Node Haswell - X86 Event Before After cs 3,016,467 3,176,453 migrations 37,326 30,238 faults 115,342 87,869 cache-misses 11,692,155,554 12,544,479,391 sched:sched_move_numa 965 23 sched:sched_stick_numa 8 0 sched:sched_swap_numa 35 6 migrate:mm_migrate_pages 1,168 10 vmstat 8th warehouse Single JVM 2 Socket - 2 Node Haswell - X86 Event Before After numa_hint_faults 16286 236 numa_hint_faults_local 11863 201 numa_hit 112482 72293 numa_huge_pte_updates 33 0 numa_interleave 20 26 numa_local 112419 72233 numa_other 63 60 numa_pages_migrated 1144 8 numa_pte_updates 32859 0 perf stats 8th warehouse Multi JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After cs 8,629,724 8,478,820 migrations 221,052 171,323 faults 308,661 307,499 cache-misses 135,574,913 240,353,599 sched:sched_move_numa 147 214 sched:sched_stick_numa 0 0 sched:sched_swap_numa 2 4 migrate:mm_migrate_pages 64 89 vmstat 8th warehouse Multi JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After numa_hint_faults 11481 5301 numa_hint_faults_local 10968 4745 numa_hit 89773 92943 numa_huge_pte_updates 0 0 numa_interleave 1116 899 numa_local 89220 92345 numa_other 553 598 numa_pages_migrated 62 88 numa_pte_updates 11694 5505 perf stats 8th warehouse Single JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After cs 2,272,887 2,066,172 migrations 12,206 11,076 faults 163,704 149,544 cache-misses 4,801,186 10,398,067 sched:sched_move_numa 44 43 sched:sched_stick_numa 0 0 sched:sched_swap_numa 0 0 migrate:mm_migrate_pages 17 6 vmstat 8th warehouse Single JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After numa_hint_faults 2261 3552 numa_hint_faults_local 1993 3347 numa_hit 25726 25611 numa_huge_pte_updates 0 0 numa_interleave 239 213 numa_local 25498 25583 numa_other 228 28 numa_pages_migrated 17 6 numa_pte_updates 2266 3535 perf stats 8th warehouse Multi JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After cs 117,980,962 99,358,136 migrations 3,950,220 4,041,607 faults 736,979 749,653 cache-misses 224,976,072,879 225,562,543,251 sched:sched_move_numa 504 771 sched:sched_stick_numa 50 14 sched:sched_swap_numa 239 204 migrate:mm_migrate_pages 1,260 1,180 vmstat 8th warehouse Multi JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After numa_hint_faults 18293 27409 numa_hint_faults_local 11969 20677 numa_hit 240854 239988 numa_huge_pte_updates 0 0 numa_interleave 0 0 numa_local 240851 239983 numa_other 3 5 numa_pages_migrated 1190 1016 numa_pte_updates 18106 27916 perf stats 8th warehouse Single JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After cs 61,053,158 60,899,307 migrations 551,586 544,668 faults 244,174 270,834 cache-misses 74,326,766,973 74,543,455,635 sched:sched_move_numa 344 735 sched:sched_stick_numa 24 25 sched:sched_swap_numa 140 174 migrate:mm_migrate_pages 568 816 vmstat 8th warehouse Single JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After numa_hint_faults 6461 11059 numa_hint_faults_local 2283 4733 numa_hit 35661 41384 numa_huge_pte_updates 0 0 numa_interleave 0 0 numa_local 35661 41383 numa_other 0 1 numa_pages_migrated 568 815 numa_pte_updates 6518 11323 Signed-off-by: Srikar Dronamraju Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Rik van Riel Acked-by: Mel Gorman Cc: Jirka Hladky Cc: Linus Torvalds Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1537552141-27815-2-git-send-email-srikar@linux.vnet.ibm.com Signed-off-by: Ingo Molnar --- kernel/sched/fair.c | 22 ++++++++++++++++++++++ kernel/sched/sched.h | 1 + 2 files changed, 23 insertions(+) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index f808ddf2a868..3b0b75de1141 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1514,6 +1514,21 @@ struct task_numa_env { static void task_numa_assign(struct task_numa_env *env, struct task_struct *p, long imp) { + struct rq *rq = cpu_rq(env->dst_cpu); + + /* Bail out if run-queue part of active NUMA balance. */ + if (xchg(&rq->numa_migrate_on, 1)) + return; + + /* + * Clear previous best_cpu/rq numa-migrate flag, since task now + * found a better CPU to move/swap. + */ + if (env->best_cpu != -1) { + rq = cpu_rq(env->best_cpu); + WRITE_ONCE(rq->numa_migrate_on, 0); + } + if (env->best_task) put_task_struct(env->best_task); if (p) @@ -1569,6 +1584,9 @@ static void task_numa_compare(struct task_numa_env *env, long moveimp = imp; int dist = env->dist; + if (READ_ONCE(dst_rq->numa_migrate_on)) + return; + rcu_read_lock(); cur = task_rcu_dereference(&dst_rq->curr); if (cur && ((cur->flags & PF_EXITING) || is_idle_task(cur))) @@ -1710,6 +1728,7 @@ static int task_numa_migrate(struct task_struct *p) .best_cpu = -1, }; struct sched_domain *sd; + struct rq *best_rq; unsigned long taskweight, groupweight; int nid, ret, dist; long taskimp, groupimp; @@ -1811,14 +1830,17 @@ static int task_numa_migrate(struct task_struct *p) */ p->numa_scan_period = task_scan_start(p); + best_rq = cpu_rq(env.best_cpu); if (env.best_task == NULL) { ret = migrate_task_to(p, env.best_cpu); + WRITE_ONCE(best_rq->numa_migrate_on, 0); if (ret != 0) trace_sched_stick_numa(p, env.src_cpu, env.best_cpu); return ret; } ret = migrate_swap(p, env.best_task, env.best_cpu, env.src_cpu); + WRITE_ONCE(best_rq->numa_migrate_on, 0); if (ret != 0) trace_sched_stick_numa(p, env.src_cpu, task_cpu(env.best_task)); diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 4a2e8cae63c4..0b9161241bda 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -783,6 +783,7 @@ struct rq { #ifdef CONFIG_NUMA_BALANCING unsigned int nr_numa_running; unsigned int nr_preferred_running; + unsigned int numa_migrate_on; #endif #define CPU_LOAD_IDX_MAX 5 unsigned long cpu_load[CPU_LOAD_IDX_MAX]; From 1327237a5978b00bcc665c33046c9bae75da1154 Mon Sep 17 00:00:00 2001 From: Srikar Dronamraju Date: Fri, 21 Sep 2018 23:18:57 +0530 Subject: [PATCH 1510/1762] sched/numa: Pass destination CPU as a parameter to migrate_task_rq This additional parameter (new_cpu) is used later for identifying if task migration is across nodes. No functional change. Specjbb2005 results (8 warehouses) Higher bops are better 2 Socket - 2 Node Haswell - X86 JVMS Prev Current %Change 4 203353 200668 -1.32036 1 328205 321791 -1.95427 2 Socket - 4 Node Power8 - PowerNV JVMS Prev Current %Change 1 214384 204848 -4.44809 2 Socket - 2 Node Power9 - PowerNV JVMS Prev Current %Change 4 188553 188098 -0.241311 1 196273 200351 2.07772 4 Socket - 4 Node Power7 - PowerVM JVMS Prev Current %Change 8 57581.2 58145.9 0.980702 1 103468 103798 0.318939 Brings out the variance between different specjbb2005 runs. Some events stats before and after applying the patch. perf stats 8th warehouse Multi JVM 2 Socket - 2 Node Haswell - X86 Event Before After cs 13,941,377 13,912,183 migrations 1,157,323 1,155,931 faults 382,175 367,139 cache-misses 54,993,823,500 54,240,196,814 sched:sched_move_numa 2,005 1,571 sched:sched_stick_numa 14 9 sched:sched_swap_numa 529 463 migrate:mm_migrate_pages 1,573 703 vmstat 8th warehouse Multi JVM 2 Socket - 2 Node Haswell - X86 Event Before After numa_hint_faults 67099 50155 numa_hint_faults_local 58456 45264 numa_hit 240416 239652 numa_huge_pte_updates 18 36 numa_interleave 65 68 numa_local 240339 239576 numa_other 77 76 numa_pages_migrated 1574 680 numa_pte_updates 77182 71146 perf stats 8th warehouse Single JVM 2 Socket - 2 Node Haswell - X86 Event Before After cs 3,176,453 3,156,720 migrations 30,238 30,354 faults 87,869 97,261 cache-misses 12,544,479,391 12,400,026,826 sched:sched_move_numa 23 4 sched:sched_stick_numa 0 0 sched:sched_swap_numa 6 1 migrate:mm_migrate_pages 10 20 vmstat 8th warehouse Single JVM 2 Socket - 2 Node Haswell - X86 Event Before After numa_hint_faults 236 272 numa_hint_faults_local 201 186 numa_hit 72293 71362 numa_huge_pte_updates 0 0 numa_interleave 26 23 numa_local 72233 71299 numa_other 60 63 numa_pages_migrated 8 2 numa_pte_updates 0 0 perf stats 8th warehouse Multi JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After cs 8,478,820 8,606,824 migrations 171,323 155,352 faults 307,499 301,409 cache-misses 240,353,599 157,759,224 sched:sched_move_numa 214 168 sched:sched_stick_numa 0 0 sched:sched_swap_numa 4 3 migrate:mm_migrate_pages 89 125 vmstat 8th warehouse Multi JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After numa_hint_faults 5301 4650 numa_hint_faults_local 4745 3946 numa_hit 92943 90489 numa_huge_pte_updates 0 0 numa_interleave 899 892 numa_local 92345 90034 numa_other 598 455 numa_pages_migrated 88 124 numa_pte_updates 5505 4818 perf stats 8th warehouse Single JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After cs 2,066,172 2,113,167 migrations 11,076 10,533 faults 149,544 142,727 cache-misses 10,398,067 5,594,192 sched:sched_move_numa 43 10 sched:sched_stick_numa 0 0 sched:sched_swap_numa 0 0 migrate:mm_migrate_pages 6 6 vmstat 8th warehouse Single JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After numa_hint_faults 3552 744 numa_hint_faults_local 3347 584 numa_hit 25611 25551 numa_huge_pte_updates 0 0 numa_interleave 213 263 numa_local 25583 25302 numa_other 28 249 numa_pages_migrated 6 6 numa_pte_updates 3535 744 perf stats 8th warehouse Multi JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After cs 99,358,136 101,227,352 migrations 4,041,607 4,151,829 faults 749,653 745,233 cache-misses 225,562,543,251 224,669,561,766 sched:sched_move_numa 771 617 sched:sched_stick_numa 14 2 sched:sched_swap_numa 204 187 migrate:mm_migrate_pages 1,180 316 vmstat 8th warehouse Multi JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After numa_hint_faults 27409 24195 numa_hint_faults_local 20677 21639 numa_hit 239988 238331 numa_huge_pte_updates 0 0 numa_interleave 0 0 numa_local 239983 238331 numa_other 5 0 numa_pages_migrated 1016 204 numa_pte_updates 27916 24561 perf stats 8th warehouse Single JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After cs 60,899,307 62,738,978 migrations 544,668 562,702 faults 270,834 228,465 cache-misses 74,543,455,635 75,778,067,952 sched:sched_move_numa 735 648 sched:sched_stick_numa 25 13 sched:sched_swap_numa 174 137 migrate:mm_migrate_pages 816 733 vmstat 8th warehouse Single JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After numa_hint_faults 11059 10281 numa_hint_faults_local 4733 3242 numa_hit 41384 36338 numa_huge_pte_updates 0 0 numa_interleave 0 0 numa_local 41383 36338 numa_other 1 0 numa_pages_migrated 815 706 numa_pte_updates 11323 10176 Signed-off-by: Srikar Dronamraju Signed-off-by: Peter Zijlstra (Intel) Cc: Jirka Hladky Cc: Linus Torvalds Cc: Mel Gorman Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Rik van Riel Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1537552141-27815-3-git-send-email-srikar@linux.vnet.ibm.com Signed-off-by: Ingo Molnar --- kernel/sched/core.c | 2 +- kernel/sched/deadline.c | 2 +- kernel/sched/fair.c | 2 +- kernel/sched/sched.h | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 625bc9897f62..ad97f3ba5ec5 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1167,7 +1167,7 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu) if (task_cpu(p) != new_cpu) { if (p->sched_class->migrate_task_rq) - p->sched_class->migrate_task_rq(p); + p->sched_class->migrate_task_rq(p, new_cpu); p->se.nr_migrations++; rseq_migrate(p); perf_event_task_migrate(p); diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 997ea7b839fa..91e4202b0634 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1607,7 +1607,7 @@ out: return cpu; } -static void migrate_task_rq_dl(struct task_struct *p) +static void migrate_task_rq_dl(struct task_struct *p, int new_cpu __maybe_unused) { struct rq *rq; diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 3b0b75de1141..bc768156239f 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6297,7 +6297,7 @@ static void detach_entity_cfs_rq(struct sched_entity *se); * cfs_rq_of(p) references at time of call are still valid and identify the * previous CPU. The caller guarantees p->pi_lock or task_rq(p)->lock is held. */ -static void migrate_task_rq_fair(struct task_struct *p) +static void migrate_task_rq_fair(struct task_struct *p, int new_cpu __maybe_unused) { /* * As blocked tasks retain absolute vruntime the migration needs to diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 0b9161241bda..455fa330de04 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1524,7 +1524,7 @@ struct sched_class { #ifdef CONFIG_SMP int (*select_task_rq)(struct task_struct *p, int task_cpu, int sd_flag, int flags); - void (*migrate_task_rq)(struct task_struct *p); + void (*migrate_task_rq)(struct task_struct *p, int new_cpu); void (*task_woken)(struct rq *this_rq, struct task_struct *task); From 3f9672baaa70fc62765857f13f007feb01f9ad33 Mon Sep 17 00:00:00 2001 From: Srikar Dronamraju Date: Fri, 21 Sep 2018 23:18:58 +0530 Subject: [PATCH 1511/1762] sched/numa: Reset scan rate whenever task moves across nodes Currently task scan rate is reset when NUMA balancer migrates the task to a different node. If NUMA balancer initiates a swap, reset is only applicable to the task that initiates the swap. Similarly no scan rate reset is done if the task is migrated across nodes by traditional load balancer. Instead move the scan reset to the migrate_task_rq. This ensures the task moved out of its preferred node, either gets back to its preferred node quickly or finds a new preferred node. Doing so, would be fair to all tasks migrating across nodes. Specjbb2005 results (8 warehouses) Higher bops are better 2 Socket - 2 Node Haswell - X86 JVMS Prev Current %Change 4 200668 203370 1.3465 1 321791 328431 2.06345 2 Socket - 4 Node Power8 - PowerNV JVMS Prev Current %Change 1 204848 206070 0.59654 2 Socket - 2 Node Power9 - PowerNV JVMS Prev Current %Change 4 188098 188386 0.153112 1 200351 201566 0.606436 4 Socket - 4 Node Power7 - PowerVM JVMS Prev Current %Change 8 58145.9 59157.4 1.73959 1 103798 105495 1.63491 Some events stats before and after applying the patch. perf stats 8th warehouse Multi JVM 2 Socket - 2 Node Haswell - X86 Event Before After cs 13,912,183 13,825,492 migrations 1,155,931 1,152,509 faults 367,139 371,948 cache-misses 54,240,196,814 55,654,206,041 sched:sched_move_numa 1,571 1,856 sched:sched_stick_numa 9 4 sched:sched_swap_numa 463 428 migrate:mm_migrate_pages 703 898 vmstat 8th warehouse Multi JVM 2 Socket - 2 Node Haswell - X86 Event Before After numa_hint_faults 50155 57146 numa_hint_faults_local 45264 51612 numa_hit 239652 238164 numa_huge_pte_updates 36 16 numa_interleave 68 63 numa_local 239576 238085 numa_other 76 79 numa_pages_migrated 680 883 numa_pte_updates 71146 67540 perf stats 8th warehouse Single JVM 2 Socket - 2 Node Haswell - X86 Event Before After cs 3,156,720 3,288,525 migrations 30,354 38,652 faults 97,261 111,678 cache-misses 12,400,026,826 12,111,197,376 sched:sched_move_numa 4 900 sched:sched_stick_numa 0 0 sched:sched_swap_numa 1 5 migrate:mm_migrate_pages 20 714 vmstat 8th warehouse Single JVM 2 Socket - 2 Node Haswell - X86 Event Before After numa_hint_faults 272 18572 numa_hint_faults_local 186 14850 numa_hit 71362 73197 numa_huge_pte_updates 0 11 numa_interleave 23 25 numa_local 71299 73138 numa_other 63 59 numa_pages_migrated 2 712 numa_pte_updates 0 24021 perf stats 8th warehouse Multi JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After cs 8,606,824 8,451,543 migrations 155,352 202,804 faults 301,409 310,024 cache-misses 157,759,224 253,522,507 sched:sched_move_numa 168 213 sched:sched_stick_numa 0 0 sched:sched_swap_numa 3 2 migrate:mm_migrate_pages 125 88 vmstat 8th warehouse Multi JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After numa_hint_faults 4650 11830 numa_hint_faults_local 3946 11301 numa_hit 90489 90038 numa_huge_pte_updates 0 0 numa_interleave 892 855 numa_local 90034 89796 numa_other 455 242 numa_pages_migrated 124 88 numa_pte_updates 4818 12039 perf stats 8th warehouse Single JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After cs 2,113,167 2,049,153 migrations 10,533 11,405 faults 142,727 162,309 cache-misses 5,594,192 7,203,343 sched:sched_move_numa 10 22 sched:sched_stick_numa 0 0 sched:sched_swap_numa 0 0 migrate:mm_migrate_pages 6 1 vmstat 8th warehouse Single JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After numa_hint_faults 744 1693 numa_hint_faults_local 584 1669 numa_hit 25551 25177 numa_huge_pte_updates 0 0 numa_interleave 263 194 numa_local 25302 24993 numa_other 249 184 numa_pages_migrated 6 1 numa_pte_updates 744 1577 perf stats 8th warehouse Multi JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After cs 101,227,352 94,515,937 migrations 4,151,829 4,203,554 faults 745,233 832,697 cache-misses 224,669,561,766 226,248,698,331 sched:sched_move_numa 617 1,730 sched:sched_stick_numa 2 14 sched:sched_swap_numa 187 432 migrate:mm_migrate_pages 316 1,398 vmstat 8th warehouse Multi JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After numa_hint_faults 24195 80079 numa_hint_faults_local 21639 68620 numa_hit 238331 241187 numa_huge_pte_updates 0 0 numa_interleave 0 0 numa_local 238331 241186 numa_other 0 1 numa_pages_migrated 204 1347 numa_pte_updates 24561 80729 perf stats 8th warehouse Single JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After cs 62,738,978 63,704,961 migrations 562,702 573,404 faults 228,465 230,878 cache-misses 75,778,067,952 76,568,222,781 sched:sched_move_numa 648 509 sched:sched_stick_numa 13 31 sched:sched_swap_numa 137 182 migrate:mm_migrate_pages 733 541 vmstat 8th warehouse Single JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After numa_hint_faults 10281 8501 numa_hint_faults_local 3242 2960 numa_hit 36338 35526 numa_huge_pte_updates 0 0 numa_interleave 0 0 numa_local 36338 35526 numa_other 0 0 numa_pages_migrated 706 539 numa_pte_updates 10176 8433 Signed-off-by: Srikar Dronamraju Signed-off-by: Peter Zijlstra (Intel) Cc: Jirka Hladky Cc: Linus Torvalds Cc: Mel Gorman Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Rik van Riel Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1537552141-27815-4-git-send-email-srikar@linux.vnet.ibm.com Signed-off-by: Ingo Molnar --- kernel/sched/fair.c | 26 +++++++++++++++++++------- 1 file changed, 19 insertions(+), 7 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index bc768156239f..5cbfb3068bc6 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1824,12 +1824,6 @@ static int task_numa_migrate(struct task_struct *p) if (env.best_cpu == -1) return -EAGAIN; - /* - * Reset the scan period if the task is being rescheduled on an - * alternative node to recheck if the tasks is now properly placed. - */ - p->numa_scan_period = task_scan_start(p); - best_rq = cpu_rq(env.best_cpu); if (env.best_task == NULL) { ret = migrate_task_to(p, env.best_cpu); @@ -2618,6 +2612,18 @@ void task_tick_numa(struct rq *rq, struct task_struct *curr) } } +static void update_scan_period(struct task_struct *p, int new_cpu) +{ + int src_nid = cpu_to_node(task_cpu(p)); + int dst_nid = cpu_to_node(new_cpu); + + if (!p->mm || !p->numa_faults || (p->flags & PF_EXITING)) + return; + + if (src_nid != dst_nid) + p->numa_scan_period = task_scan_start(p); +} + #else static void task_tick_numa(struct rq *rq, struct task_struct *curr) { @@ -2631,6 +2637,10 @@ static inline void account_numa_dequeue(struct rq *rq, struct task_struct *p) { } +static inline void update_scan_period(struct task_struct *p, int new_cpu) +{ +} + #endif /* CONFIG_NUMA_BALANCING */ static void @@ -6297,7 +6307,7 @@ static void detach_entity_cfs_rq(struct sched_entity *se); * cfs_rq_of(p) references at time of call are still valid and identify the * previous CPU. The caller guarantees p->pi_lock or task_rq(p)->lock is held. */ -static void migrate_task_rq_fair(struct task_struct *p, int new_cpu __maybe_unused) +static void migrate_task_rq_fair(struct task_struct *p, int new_cpu) { /* * As blocked tasks retain absolute vruntime the migration needs to @@ -6350,6 +6360,8 @@ static void migrate_task_rq_fair(struct task_struct *p, int new_cpu __maybe_unus /* We have migrated, no longer consider this task hot */ p->se.exec_start = 0; + + update_scan_period(p, new_cpu); } static void task_dead_fair(struct task_struct *p) From 05cbdf4f5c191ff378c47bbf66d7230beb725bdb Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Fri, 21 Sep 2018 23:18:59 +0530 Subject: [PATCH 1512/1762] sched/numa: Limit the conditions where scan period is reset migrate_task_rq_fair() resets the scan rate for NUMA balancing on every cross-node migration. In the event of excessive load balancing due to saturation, this may result in the scan rate being pegged at maximum and further overloading the machine. This patch only resets the scan if NUMA balancing is active, a preferred node has been selected and the task is being migrated from the preferred node as these are the most harmful. For example, a migration to the preferred node does not justify a faster scan rate. Similarly, a migration between two nodes that are not preferred is probably bouncing due to over-saturation of the machine. In that case, scanning faster and trapping more NUMA faults will further overload the machine. Specjbb2005 results (8 warehouses) Higher bops are better 2 Socket - 2 Node Haswell - X86 JVMS Prev Current %Change 4 203370 205332 0.964744 1 328431 319785 -2.63252 2 Socket - 4 Node Power8 - PowerNV JVMS Prev Current %Change 1 206070 206585 0.249915 2 Socket - 2 Node Power9 - PowerNV JVMS Prev Current %Change 4 188386 189162 0.41192 1 201566 213760 6.04963 4 Socket - 4 Node Power7 - PowerVM JVMS Prev Current %Change 8 59157.4 58736.8 -0.710985 1 105495 105419 -0.0720413 Some events stats before and after applying the patch. perf stats 8th warehouse Multi JVM 2 Socket - 2 Node Haswell - X86 Event Before After cs 13,825,492 14,285,708 migrations 1,152,509 1,180,621 faults 371,948 339,114 cache-misses 55,654,206,041 55,205,631,894 sched:sched_move_numa 1,856 843 sched:sched_stick_numa 4 6 sched:sched_swap_numa 428 219 migrate:mm_migrate_pages 898 365 vmstat 8th warehouse Multi JVM 2 Socket - 2 Node Haswell - X86 Event Before After numa_hint_faults 57146 26907 numa_hint_faults_local 51612 24279 numa_hit 238164 239771 numa_huge_pte_updates 16 0 numa_interleave 63 68 numa_local 238085 239688 numa_other 79 83 numa_pages_migrated 883 363 numa_pte_updates 67540 27415 perf stats 8th warehouse Single JVM 2 Socket - 2 Node Haswell - X86 Event Before After cs 3,288,525 3,202,779 migrations 38,652 37,186 faults 111,678 106,076 cache-misses 12,111,197,376 12,024,873,744 sched:sched_move_numa 900 931 sched:sched_stick_numa 0 0 sched:sched_swap_numa 5 1 migrate:mm_migrate_pages 714 637 vmstat 8th warehouse Single JVM 2 Socket - 2 Node Haswell - X86 Event Before After numa_hint_faults 18572 17409 numa_hint_faults_local 14850 14367 numa_hit 73197 73953 numa_huge_pte_updates 11 20 numa_interleave 25 25 numa_local 73138 73892 numa_other 59 61 numa_pages_migrated 712 668 numa_pte_updates 24021 27276 perf stats 8th warehouse Multi JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After cs 8,451,543 8,474,013 migrations 202,804 254,934 faults 310,024 320,506 cache-misses 253,522,507 110,580,458 sched:sched_move_numa 213 725 sched:sched_stick_numa 0 0 sched:sched_swap_numa 2 7 migrate:mm_migrate_pages 88 145 vmstat 8th warehouse Multi JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After numa_hint_faults 11830 22797 numa_hint_faults_local 11301 21539 numa_hit 90038 89308 numa_huge_pte_updates 0 0 numa_interleave 855 865 numa_local 89796 88955 numa_other 242 353 numa_pages_migrated 88 149 numa_pte_updates 12039 22930 perf stats 8th warehouse Single JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After cs 2,049,153 2,195,628 migrations 11,405 11,179 faults 162,309 149,656 cache-misses 7,203,343 8,117,515 sched:sched_move_numa 22 49 sched:sched_stick_numa 0 0 sched:sched_swap_numa 0 0 migrate:mm_migrate_pages 1 5 vmstat 8th warehouse Single JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After numa_hint_faults 1693 3577 numa_hint_faults_local 1669 3476 numa_hit 25177 26142 numa_huge_pte_updates 0 0 numa_interleave 194 358 numa_local 24993 26042 numa_other 184 100 numa_pages_migrated 1 5 numa_pte_updates 1577 3587 perf stats 8th warehouse Multi JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After cs 94,515,937 100,602,296 migrations 4,203,554 4,135,630 faults 832,697 789,256 cache-misses 226,248,698,331 226,160,621,058 sched:sched_move_numa 1,730 1,366 sched:sched_stick_numa 14 16 sched:sched_swap_numa 432 374 migrate:mm_migrate_pages 1,398 1,350 vmstat 8th warehouse Multi JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After numa_hint_faults 80079 47857 numa_hint_faults_local 68620 39768 numa_hit 241187 240165 numa_huge_pte_updates 0 0 numa_interleave 0 0 numa_local 241186 240165 numa_other 1 0 numa_pages_migrated 1347 1224 numa_pte_updates 80729 48354 perf stats 8th warehouse Single JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After cs 63,704,961 58,515,496 migrations 573,404 564,845 faults 230,878 245,807 cache-misses 76,568,222,781 73,603,757,976 sched:sched_move_numa 509 996 sched:sched_stick_numa 31 10 sched:sched_swap_numa 182 193 migrate:mm_migrate_pages 541 646 vmstat 8th warehouse Single JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After numa_hint_faults 8501 13422 numa_hint_faults_local 2960 5619 numa_hit 35526 36118 numa_huge_pte_updates 0 0 numa_interleave 0 0 numa_local 35526 36116 numa_other 0 2 numa_pages_migrated 539 616 numa_pte_updates 8433 13374 Signed-off-by: Mel Gorman Signed-off-by: Srikar Dronamraju Signed-off-by: Peter Zijlstra (Intel) Cc: Jirka Hladky Cc: Linus Torvalds Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Rik van Riel Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1537552141-27815-5-git-send-email-srikar@linux.vnet.ibm.com Signed-off-by: Ingo Molnar --- kernel/sched/fair.c | 25 +++++++++++++++++++++++-- 1 file changed, 23 insertions(+), 2 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 5cbfb3068bc6..3529bf61826b 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -2617,11 +2617,32 @@ static void update_scan_period(struct task_struct *p, int new_cpu) int src_nid = cpu_to_node(task_cpu(p)); int dst_nid = cpu_to_node(new_cpu); + if (!static_branch_likely(&sched_numa_balancing)) + return; + if (!p->mm || !p->numa_faults || (p->flags & PF_EXITING)) return; - if (src_nid != dst_nid) - p->numa_scan_period = task_scan_start(p); + if (src_nid == dst_nid) + return; + + /* + * Allow resets if faults have been trapped before one scan + * has completed. This is most likely due to a new task that + * is pulled cross-node due to wakeups or load balancing. + */ + if (p->numa_scan_seq) { + /* + * Avoid scan adjustments if moving to the preferred + * node or if the task was not previously running on + * the preferred node. + */ + if (dst_nid == p->numa_preferred_nid || + (p->numa_preferred_nid != -1 && src_nid != p->numa_preferred_nid)) + return; + } + + p->numa_scan_period = task_scan_start(p); } #else From 7534612123e0f5d020aba1076a6bb505db0e6bfe Mon Sep 17 00:00:00 2001 From: Srikar Dronamraju Date: Fri, 21 Sep 2018 23:19:00 +0530 Subject: [PATCH 1513/1762] mm/migrate: Use spin_trylock() while resetting rate limit Since this spinlock will only serialize the migrate rate limiting, convert the spin_lock() to a spin_trylock(). If another thread is updating, this task can move on. Specjbb2005 results (8 warehouses) Higher bops are better 2 Socket - 2 Node Haswell - X86 JVMS Prev Current %Change 4 205332 198512 -3.32145 1 319785 313559 -1.94693 2 Socket - 4 Node Power8 - PowerNV JVMS Prev Current %Change 8 74912 74761.9 -0.200368 1 206585 214874 4.01239 2 Socket - 2 Node Power9 - PowerNV JVMS Prev Current %Change 4 189162 180536 -4.56011 1 213760 210281 -1.62753 4 Socket - 4 Node Power7 - PowerVM JVMS Prev Current %Change 8 58736.8 56511.4 -3.78877 1 105419 104899 -0.49327 Avoiding stretching of window intervals may be the reason for the regression. Also code now uses READ_ONCE/WRITE_ONCE. That may also be hurting performance to some extent. Some events stats before and after applying the patch. perf stats 8th warehouse Multi JVM 2 Socket - 2 Node Haswell - X86 Event Before After cs 14,285,708 13,818,546 migrations 1,180,621 1,149,960 faults 339,114 385,583 cache-misses 55,205,631,894 55,259,546,768 sched:sched_move_numa 843 2,257 sched:sched_stick_numa 6 9 sched:sched_swap_numa 219 512 migrate:mm_migrate_pages 365 2,225 vmstat 8th warehouse Multi JVM 2 Socket - 2 Node Haswell - X86 Event Before After numa_hint_faults 26907 72692 numa_hint_faults_local 24279 62270 numa_hit 239771 238762 numa_huge_pte_updates 0 48 numa_interleave 68 75 numa_local 239688 238676 numa_other 83 86 numa_pages_migrated 363 2225 numa_pte_updates 27415 98557 perf stats 8th warehouse Single JVM 2 Socket - 2 Node Haswell - X86 Event Before After cs 3,202,779 3,173,490 migrations 37,186 36,966 faults 106,076 108,776 cache-misses 12,024,873,744 12,200,075,320 sched:sched_move_numa 931 1,264 sched:sched_stick_numa 0 0 sched:sched_swap_numa 1 0 migrate:mm_migrate_pages 637 899 vmstat 8th warehouse Single JVM 2 Socket - 2 Node Haswell - X86 Event Before After numa_hint_faults 17409 21109 numa_hint_faults_local 14367 17120 numa_hit 73953 72934 numa_huge_pte_updates 20 42 numa_interleave 25 33 numa_local 73892 72866 numa_other 61 68 numa_pages_migrated 668 915 numa_pte_updates 27276 42326 perf stats 8th warehouse Multi JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After cs 8,474,013 8,312,022 migrations 254,934 231,705 faults 320,506 310,242 cache-misses 110,580,458 402,324,573 sched:sched_move_numa 725 193 sched:sched_stick_numa 0 0 sched:sched_swap_numa 7 3 migrate:mm_migrate_pages 145 93 vmstat 8th warehouse Multi JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After numa_hint_faults 22797 11838 numa_hint_faults_local 21539 11216 numa_hit 89308 90689 numa_huge_pte_updates 0 0 numa_interleave 865 1579 numa_local 88955 89634 numa_other 353 1055 numa_pages_migrated 149 92 numa_pte_updates 22930 12109 perf stats 8th warehouse Single JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After cs 2,195,628 2,170,481 migrations 11,179 10,126 faults 149,656 160,962 cache-misses 8,117,515 10,834,845 sched:sched_move_numa 49 10 sched:sched_stick_numa 0 0 sched:sched_swap_numa 0 0 migrate:mm_migrate_pages 5 2 vmstat 8th warehouse Single JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After numa_hint_faults 3577 403 numa_hint_faults_local 3476 358 numa_hit 26142 25898 numa_huge_pte_updates 0 0 numa_interleave 358 207 numa_local 26042 25860 numa_other 100 38 numa_pages_migrated 5 2 numa_pte_updates 3587 400 perf stats 8th warehouse Multi JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After cs 100,602,296 110,339,633 migrations 4,135,630 4,139,812 faults 789,256 863,622 cache-misses 226,160,621,058 231,838,045,660 sched:sched_move_numa 1,366 2,196 sched:sched_stick_numa 16 33 sched:sched_swap_numa 374 544 migrate:mm_migrate_pages 1,350 2,469 vmstat 8th warehouse Multi JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After numa_hint_faults 47857 85748 numa_hint_faults_local 39768 66831 numa_hit 240165 242213 numa_huge_pte_updates 0 0 numa_interleave 0 0 numa_local 240165 242211 numa_other 0 2 numa_pages_migrated 1224 2376 numa_pte_updates 48354 86233 perf stats 8th warehouse Single JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After cs 58,515,496 59,331,057 migrations 564,845 552,019 faults 245,807 266,586 cache-misses 73,603,757,976 73,796,312,990 sched:sched_move_numa 996 981 sched:sched_stick_numa 10 54 sched:sched_swap_numa 193 286 migrate:mm_migrate_pages 646 713 vmstat 8th warehouse Single JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After numa_hint_faults 13422 14807 numa_hint_faults_local 5619 5738 numa_hit 36118 36230 numa_huge_pte_updates 0 0 numa_interleave 0 0 numa_local 36116 36228 numa_other 2 2 numa_pages_migrated 616 703 numa_pte_updates 13374 14742 Suggested-by: Peter Zijlstra Signed-off-by: Srikar Dronamraju Signed-off-by: Peter Zijlstra (Intel) Cc: Jirka Hladky Cc: Linus Torvalds Cc: Mel Gorman Cc: Mike Galbraith Cc: Rik van Riel Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1537552141-27815-6-git-send-email-srikar@linux.vnet.ibm.com Signed-off-by: Ingo Molnar --- mm/migrate.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index d6a2e89b086a..4f1d894835b5 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1867,16 +1867,24 @@ static unsigned int ratelimit_pages __read_mostly = 128 << (20 - PAGE_SHIFT); static bool numamigrate_update_ratelimit(pg_data_t *pgdat, unsigned long nr_pages) { + unsigned long next_window, interval; + + next_window = READ_ONCE(pgdat->numabalancing_migrate_next_window); + interval = msecs_to_jiffies(migrate_interval_millisecs); + /* * Rate-limit the amount of data that is being migrated to a node. * Optimal placement is no good if the memory bus is saturated and * all the time is being spent migrating! */ - if (time_after(jiffies, pgdat->numabalancing_migrate_next_window)) { - spin_lock(&pgdat->numabalancing_migrate_lock); + if (time_after(jiffies, next_window) && + spin_trylock(&pgdat->numabalancing_migrate_lock)) { pgdat->numabalancing_migrate_nr_pages = 0; - pgdat->numabalancing_migrate_next_window = jiffies + - msecs_to_jiffies(migrate_interval_millisecs); + do { + next_window += interval; + } while (unlikely(time_after(jiffies, next_window))); + + WRITE_ONCE(pgdat->numabalancing_migrate_next_window, next_window); spin_unlock(&pgdat->numabalancing_migrate_lock); } if (pgdat->numabalancing_migrate_nr_pages > ratelimit_pages) { From 6fd98e775f24fd41520928d345f5db3ff52bb35d Mon Sep 17 00:00:00 2001 From: Srikar Dronamraju Date: Fri, 21 Sep 2018 23:19:01 +0530 Subject: [PATCH 1514/1762] sched/numa: Avoid task migration for small NUMA improvement If NUMA improvement from the task migration is going to be very minimal, then avoid task migration. Specjbb2005 results (8 warehouses) Higher bops are better 2 Socket - 2 Node Haswell - X86 JVMS Prev Current %Change 4 198512 205910 3.72673 1 313559 318491 1.57291 2 Socket - 4 Node Power8 - PowerNV JVMS Prev Current %Change 8 74761.9 74935.9 0.232739 1 214874 226796 5.54837 2 Socket - 2 Node Power9 - PowerNV JVMS Prev Current %Change 4 180536 189780 5.12031 1 210281 205695 -2.18089 4 Socket - 4 Node Power7 - PowerVM JVMS Prev Current %Change 8 56511.4 60370 6.828 1 104899 108100 3.05151 1/7 cases is regressing, if we look at events migrate_pages seem to vary the most especially in the regressing case. Also some amount of variance is expected between different runs of Specjbb2005. Some events stats before and after applying the patch. perf stats 8th warehouse Multi JVM 2 Socket - 2 Node Haswell - X86 Event Before After cs 13,818,546 13,801,554 migrations 1,149,960 1,151,541 faults 385,583 433,246 cache-misses 55,259,546,768 55,168,691,835 sched:sched_move_numa 2,257 2,551 sched:sched_stick_numa 9 24 sched:sched_swap_numa 512 904 migrate:mm_migrate_pages 2,225 1,571 vmstat 8th warehouse Multi JVM 2 Socket - 2 Node Haswell - X86 Event Before After numa_hint_faults 72692 113682 numa_hint_faults_local 62270 102163 numa_hit 238762 240181 numa_huge_pte_updates 48 36 numa_interleave 75 64 numa_local 238676 240103 numa_other 86 78 numa_pages_migrated 2225 1564 numa_pte_updates 98557 134080 perf stats 8th warehouse Single JVM 2 Socket - 2 Node Haswell - X86 Event Before After cs 3,173,490 3,079,150 migrations 36,966 31,455 faults 108,776 99,081 cache-misses 12,200,075,320 11,588,126,740 sched:sched_move_numa 1,264 1 sched:sched_stick_numa 0 0 sched:sched_swap_numa 0 0 migrate:mm_migrate_pages 899 36 vmstat 8th warehouse Single JVM 2 Socket - 2 Node Haswell - X86 Event Before After numa_hint_faults 21109 430 numa_hint_faults_local 17120 77 numa_hit 72934 71277 numa_huge_pte_updates 42 0 numa_interleave 33 22 numa_local 72866 71218 numa_other 68 59 numa_pages_migrated 915 23 numa_pte_updates 42326 0 perf stats 8th warehouse Multi JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After cs 8,312,022 8,707,565 migrations 231,705 171,342 faults 310,242 310,820 cache-misses 402,324,573 136,115,400 sched:sched_move_numa 193 215 sched:sched_stick_numa 0 6 sched:sched_swap_numa 3 24 migrate:mm_migrate_pages 93 162 vmstat 8th warehouse Multi JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After numa_hint_faults 11838 8985 numa_hint_faults_local 11216 8154 numa_hit 90689 93819 numa_huge_pte_updates 0 0 numa_interleave 1579 882 numa_local 89634 93496 numa_other 1055 323 numa_pages_migrated 92 169 numa_pte_updates 12109 9217 perf stats 8th warehouse Single JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After cs 2,170,481 2,152,072 migrations 10,126 10,704 faults 160,962 164,376 cache-misses 10,834,845 3,818,437 sched:sched_move_numa 10 16 sched:sched_stick_numa 0 0 sched:sched_swap_numa 0 7 migrate:mm_migrate_pages 2 199 vmstat 8th warehouse Single JVM 2 Socket - 2 Node Power9 - PowerNV Event Before After numa_hint_faults 403 2248 numa_hint_faults_local 358 1666 numa_hit 25898 25704 numa_huge_pte_updates 0 0 numa_interleave 207 200 numa_local 25860 25679 numa_other 38 25 numa_pages_migrated 2 197 numa_pte_updates 400 2234 perf stats 8th warehouse Multi JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After cs 110,339,633 93,330,595 migrations 4,139,812 4,122,061 faults 863,622 865,979 cache-misses 231,838,045,660 225,395,083,479 sched:sched_move_numa 2,196 2,372 sched:sched_stick_numa 33 24 sched:sched_swap_numa 544 769 migrate:mm_migrate_pages 2,469 1,677 vmstat 8th warehouse Multi JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After numa_hint_faults 85748 91638 numa_hint_faults_local 66831 78096 numa_hit 242213 242225 numa_huge_pte_updates 0 0 numa_interleave 0 2 numa_local 242211 242219 numa_other 2 6 numa_pages_migrated 2376 1515 numa_pte_updates 86233 92274 perf stats 8th warehouse Single JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After cs 59,331,057 51,487,271 migrations 552,019 537,170 faults 266,586 256,921 cache-misses 73,796,312,990 70,073,831,187 sched:sched_move_numa 981 576 sched:sched_stick_numa 54 24 sched:sched_swap_numa 286 327 migrate:mm_migrate_pages 713 726 vmstat 8th warehouse Single JVM 4 Socket - 4 Node Power7 - PowerVM Event Before After numa_hint_faults 14807 12000 numa_hint_faults_local 5738 5024 numa_hit 36230 36470 numa_huge_pte_updates 0 0 numa_interleave 0 0 numa_local 36228 36465 numa_other 2 5 numa_pages_migrated 703 726 numa_pte_updates 14742 11930 Signed-off-by: Srikar Dronamraju Signed-off-by: Peter Zijlstra (Intel) Cc: Jirka Hladky Cc: Linus Torvalds Cc: Mel Gorman Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Rik van Riel Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1537552141-27815-7-git-send-email-srikar@linux.vnet.ibm.com Signed-off-by: Ingo Molnar --- kernel/sched/fair.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 3529bf61826b..25c7c7e09cbd 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1567,6 +1567,13 @@ static bool load_too_imbalanced(long src_load, long dst_load, return (imb > old_imb); } +/* + * Maximum NUMA importance can be 1998 (2*999); + * SMALLIMP @ 30 would be close to 1998/64. + * Used to deter task migration. + */ +#define SMALLIMP 30 + /* * This checks if the overall compute and NUMA accesses of the system would * be improved if the source tasks was migrated to the target dst_cpu taking @@ -1600,7 +1607,7 @@ static void task_numa_compare(struct task_numa_env *env, goto unlock; if (!cur) { - if (maymove || imp > env->best_imp) + if (maymove && moveimp >= env->best_imp) goto assign; else goto unlock; @@ -1643,15 +1650,21 @@ static void task_numa_compare(struct task_numa_env *env, task_weight(cur, env->dst_nid, dist); } - if (imp <= env->best_imp) - goto unlock; - if (maymove && moveimp > imp && moveimp > env->best_imp) { - imp = moveimp - 1; + imp = moveimp; cur = NULL; goto assign; } + /* + * If the NUMA importance is less than SMALLIMP, + * task migration might only result in ping pong + * of tasks and also hurt performance due to cache + * misses. + */ + if (imp < SMALLIMP || imp <= env->best_imp + SMALLIMP / 2) + goto unlock; + /* * In the overloaded case, try and keep the load balanced. */ From 24abf2901b18bf941b9f21ea2ce5791f61097ae4 Mon Sep 17 00:00:00 2001 From: Eric Farman Date: Tue, 2 Oct 2018 03:02:35 +0200 Subject: [PATCH 1515/1762] s390/cio: Fix how vfio-ccw checks pinned pages We have two nested loops to check the entries within the pfn_array_table arrays. But we mistakenly use the outer array as an index in our check, and completely ignore the indexing performed by the inner loop. Cc: stable@vger.kernel.org Signed-off-by: Eric Farman Message-Id: <20181002010235.42483-1-farman@linux.ibm.com> Signed-off-by: Cornelia Huck --- drivers/s390/cio/vfio_ccw_cp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c index dbe7c7ac9ac8..fd77e46eb3b2 100644 --- a/drivers/s390/cio/vfio_ccw_cp.c +++ b/drivers/s390/cio/vfio_ccw_cp.c @@ -163,7 +163,7 @@ static bool pfn_array_table_iova_pinned(struct pfn_array_table *pat, for (i = 0; i < pat->pat_nr; i++, pa++) for (j = 0; j < pa->pa_nr; j++) - if (pa->pa_iova_pfn[i] == iova_pfn) + if (pa->pa_iova_pfn[j] == iova_pfn) return true; return false; From 12d43deb1ee639d01a2a8d2a7a4cc8ad31224475 Mon Sep 17 00:00:00 2001 From: Jann Horn Date: Mon, 1 Oct 2018 17:31:17 +0200 Subject: [PATCH 1516/1762] drm: fix use-after-free read in drm_mode_create_lease_ioctl() fd_install() moves the reference given to it into the file descriptor table of the current process. If the current process is multithreaded, then immediately after fd_install(), another thread can close() the file descriptor and cause the file's resources to be cleaned up. Since the reference to "lessee" is held by the file, we must not access "lessee" after the fd_install() call. As far as I can tell, to reach this codepath, the caller must have an open file descriptor to a DRI device in master mode. I'm not sure what the requirements for that are. Signed-off-by: Jann Horn Fixes: 62884cd386b8 ("drm: Add four ioctls for managing drm mode object leases [v7]") Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20181001153117.216923-1-jannh@google.com --- drivers/gpu/drm/drm_lease.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_lease.c b/drivers/gpu/drm/drm_lease.c index b54fb78a283c..b82da96ded5c 100644 --- a/drivers/gpu/drm/drm_lease.c +++ b/drivers/gpu/drm/drm_lease.c @@ -566,14 +566,14 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev, lessee_priv->is_master = 1; lessee_priv->authenticated = 1; - /* Hook up the fd */ - fd_install(fd, lessee_file); - /* Pass fd back to userspace */ DRM_DEBUG_LEASE("Returning fd %d id %d\n", fd, lessee->lessee_id); cl->fd = fd; cl->lessee_id = lessee->lessee_id; + /* Hook up the fd */ + fd_install(fd, lessee_file); + DRM_DEBUG_LEASE("drm_mode_create_lease_ioctl succeeded\n"); return 0; From 6d348925b306ab0cc9757a09a8cea6bf288018e4 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Mon, 1 Oct 2018 15:28:56 +0100 Subject: [PATCH 1517/1762] MAINTAINERS: Remove dead path from LOCKING PRIMITIVES entry Since 890658b7ab48 ("locking/mutex: Kill arch specific code"), there are no mutex header files under arch/, so we can remove the redundant entry from MAINTAINERS. Reported-by: Joe Perches Signed-off-by: Will Deacon Cc: Jason Low Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20181001142856.GC9716@arm.com Signed-off-by: Ingo Molnar --- MAINTAINERS | 1 - 1 file changed, 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index a255240d1452..3bd8913b2d78 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8598,7 +8598,6 @@ F: include/linux/spinlock*.h F: arch/*/include/asm/spinlock*.h F: include/linux/rwlock*.h F: include/linux/mutex*.h -F: arch/*/include/asm/mutex*.h F: include/linux/rwsem*.h F: arch/*/include/asm/rwsem.h F: include/linux/seqlock.h From efaffc5e40aeced0bcb497ed7a0a5b8c14abfcdf Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Mon, 1 Oct 2018 11:05:24 +0100 Subject: [PATCH 1518/1762] mm, sched/numa: Remove rate-limiting of automatic NUMA balancing migration Rate limiting of page migrations due to automatic NUMA balancing was introduced to mitigate the worst-case scenario of migrating at high frequency due to false sharing or slowly ping-ponging between nodes. Since then, a lot of effort was spent on correctly identifying these pages and avoiding unnecessary migrations and the safety net may no longer be required. Jirka Hladky reported a regression in 4.17 due to a scheduler patch that avoids spreading STREAM tasks wide prematurely. However, once the task was properly placed, it delayed migrating the memory due to rate limiting. Increasing the limit fixed the problem for him. Currently, the limit is hard-coded and does not account for the real capabilities of the hardware. Even if an estimate was attempted, it would not properly account for the number of memory controllers and it could not account for the amount of bandwidth used for normal accesses. Rather than fudging, this patch simply eliminates the rate limiting. However, Jirka reports that a STREAM configuration using multiple processes achieved similar performance to 4.16. In local tests, this patch improved performance of STREAM relative to the baseline but it is somewhat machine-dependent. Most workloads show little or not performance difference implying that there is not a heavily reliance on the throttling mechanism and it is safe to remove. STREAM on 2-socket machine 4.19.0-rc5 4.19.0-rc5 numab-v1r1 noratelimit-v1r1 MB/sec copy 43298.52 ( 0.00%) 44673.38 ( 3.18%) MB/sec scale 30115.06 ( 0.00%) 31293.06 ( 3.91%) MB/sec add 32825.12 ( 0.00%) 34883.62 ( 6.27%) MB/sec triad 32549.52 ( 0.00%) 34906.60 ( 7.24% Signed-off-by: Mel Gorman Reviewed-by: Rik van Riel Acked-by: Peter Zijlstra Cc: Jirka Hladky Cc: Linus Torvalds Cc: Linux-MM Cc: Srikar Dronamraju Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20181001100525.29789-2-mgorman@techsingularity.net Signed-off-by: Ingo Molnar --- include/linux/mmzone.h | 6 ---- include/trace/events/migrate.h | 27 -------------- mm/migrate.c | 65 ---------------------------------- mm/page_alloc.c | 2 -- 4 files changed, 100 deletions(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 1e22d96734e0..3f4c0b167333 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -671,12 +671,6 @@ typedef struct pglist_data { #ifdef CONFIG_NUMA_BALANCING /* Lock serializing the migrate rate limiting window */ spinlock_t numabalancing_migrate_lock; - - /* Rate limiting time interval */ - unsigned long numabalancing_migrate_next_window; - - /* Number of pages migrated during the rate limiting time interval */ - unsigned long numabalancing_migrate_nr_pages; #endif /* * This is a per-node reserve of pages that are not available diff --git a/include/trace/events/migrate.h b/include/trace/events/migrate.h index 711372845945..705b33d1e395 100644 --- a/include/trace/events/migrate.h +++ b/include/trace/events/migrate.h @@ -70,33 +70,6 @@ TRACE_EVENT(mm_migrate_pages, __print_symbolic(__entry->mode, MIGRATE_MODE), __print_symbolic(__entry->reason, MIGRATE_REASON)) ); - -TRACE_EVENT(mm_numa_migrate_ratelimit, - - TP_PROTO(struct task_struct *p, int dst_nid, unsigned long nr_pages), - - TP_ARGS(p, dst_nid, nr_pages), - - TP_STRUCT__entry( - __array( char, comm, TASK_COMM_LEN) - __field( pid_t, pid) - __field( int, dst_nid) - __field( unsigned long, nr_pages) - ), - - TP_fast_assign( - memcpy(__entry->comm, p->comm, TASK_COMM_LEN); - __entry->pid = p->pid; - __entry->dst_nid = dst_nid; - __entry->nr_pages = nr_pages; - ), - - TP_printk("comm=%s pid=%d dst_nid=%d nr_pages=%lu", - __entry->comm, - __entry->pid, - __entry->dst_nid, - __entry->nr_pages) -); #endif /* _TRACE_MIGRATE_H */ /* This part must be outside protection */ diff --git a/mm/migrate.c b/mm/migrate.c index 4f1d894835b5..5e285c1249a0 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1855,54 +1855,6 @@ static struct page *alloc_misplaced_dst_page(struct page *page, return newpage; } -/* - * page migration rate limiting control. - * Do not migrate more than @pages_to_migrate in a @migrate_interval_millisecs - * window of time. Default here says do not migrate more than 1280M per second. - */ -static unsigned int migrate_interval_millisecs __read_mostly = 100; -static unsigned int ratelimit_pages __read_mostly = 128 << (20 - PAGE_SHIFT); - -/* Returns true if the node is migrate rate-limited after the update */ -static bool numamigrate_update_ratelimit(pg_data_t *pgdat, - unsigned long nr_pages) -{ - unsigned long next_window, interval; - - next_window = READ_ONCE(pgdat->numabalancing_migrate_next_window); - interval = msecs_to_jiffies(migrate_interval_millisecs); - - /* - * Rate-limit the amount of data that is being migrated to a node. - * Optimal placement is no good if the memory bus is saturated and - * all the time is being spent migrating! - */ - if (time_after(jiffies, next_window) && - spin_trylock(&pgdat->numabalancing_migrate_lock)) { - pgdat->numabalancing_migrate_nr_pages = 0; - do { - next_window += interval; - } while (unlikely(time_after(jiffies, next_window))); - - WRITE_ONCE(pgdat->numabalancing_migrate_next_window, next_window); - spin_unlock(&pgdat->numabalancing_migrate_lock); - } - if (pgdat->numabalancing_migrate_nr_pages > ratelimit_pages) { - trace_mm_numa_migrate_ratelimit(current, pgdat->node_id, - nr_pages); - return true; - } - - /* - * This is an unlocked non-atomic update so errors are possible. - * The consequences are failing to migrate when we potentiall should - * have which is not severe enough to warrant locking. If it is ever - * a problem, it can be converted to a per-cpu counter. - */ - pgdat->numabalancing_migrate_nr_pages += nr_pages; - return false; -} - static int numamigrate_isolate_page(pg_data_t *pgdat, struct page *page) { int page_lru; @@ -1975,14 +1927,6 @@ int migrate_misplaced_page(struct page *page, struct vm_area_struct *vma, if (page_is_file_cache(page) && PageDirty(page)) goto out; - /* - * Rate-limit the amount of data that is being migrated to a node. - * Optimal placement is no good if the memory bus is saturated and - * all the time is being spent migrating! - */ - if (numamigrate_update_ratelimit(pgdat, 1)) - goto out; - isolated = numamigrate_isolate_page(pgdat, page); if (!isolated) goto out; @@ -2029,14 +1973,6 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm, unsigned long mmun_start = address & HPAGE_PMD_MASK; unsigned long mmun_end = mmun_start + HPAGE_PMD_SIZE; - /* - * Rate-limit the amount of data that is being migrated to a node. - * Optimal placement is no good if the memory bus is saturated and - * all the time is being spent migrating! - */ - if (numamigrate_update_ratelimit(pgdat, HPAGE_PMD_NR)) - goto out_dropref; - new_page = alloc_pages_node(node, (GFP_TRANSHUGE_LIGHT | __GFP_THISNODE), HPAGE_PMD_ORDER); @@ -2133,7 +2069,6 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm, out_fail: count_vm_events(PGMIGRATE_FAIL, HPAGE_PMD_NR); -out_dropref: ptl = pmd_lock(mm, pmd); if (pmd_same(*pmd, entry)) { entry = pmd_modify(entry, vma->vm_page_prot); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 89d2a2ab3fe6..706a738c0aee 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -6197,8 +6197,6 @@ static unsigned long __init calc_memmap_size(unsigned long spanned_pages, static void pgdat_init_numabalancing(struct pglist_data *pgdat) { spin_lock_init(&pgdat->numabalancing_migrate_lock); - pgdat->numabalancing_migrate_nr_pages = 0; - pgdat->numabalancing_migrate_next_window = jiffies; } #else static void pgdat_init_numabalancing(struct pglist_data *pgdat) {} From 37355bdc5a129899f6b245900a8eb944a092f7fd Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Mon, 1 Oct 2018 11:05:25 +0100 Subject: [PATCH 1519/1762] sched/numa: Migrate pages to local nodes quicker early in the lifetime of a task Automatic NUMA Balancing uses a multi-stage pass to decide whether a page should migrate to a local node. This filter avoids excessive ping-ponging if a page is shared or used by threads that migrate cross-node frequently. Threads inherit both page tables and the preferred node ID from the parent. This means that threads can trigger hinting faults earlier than a new task which delays scanning for a number of seconds. As it can be load balanced very early in its lifetime there can be an unnecessary delay before it starts migrating thread-local data. This patch migrates private pages faster early in the lifetime of a thread using the sequence counter as an identifier of new tasks. With this patch applied, STREAM performance is the same as 4.17 even though processes are not spread cross-node prematurely. Other workloads showed a mix of minor gains and losses. This is somewhat expected most workloads are not very sensitive to the starting conditions of a process. 4.19.0-rc5 4.19.0-rc5 4.17.0 numab-v1r1 fastmigrate-v1r1 vanilla MB/sec copy 43298.52 ( 0.00%) 47335.46 ( 9.32%) 47219.24 ( 9.06%) MB/sec scale 30115.06 ( 0.00%) 32568.12 ( 8.15%) 32527.56 ( 8.01%) MB/sec add 32825.12 ( 0.00%) 36078.94 ( 9.91%) 35928.02 ( 9.45%) MB/sec triad 32549.52 ( 0.00%) 35935.94 ( 10.40%) 35969.88 ( 10.51%) Signed-off-by: Mel Gorman Reviewed-by: Rik van Riel Acked-by: Peter Zijlstra Cc: Jirka Hladky Cc: Linus Torvalds Cc: Linux-MM Cc: Srikar Dronamraju Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20181001100525.29789-3-mgorman@techsingularity.net Signed-off-by: Ingo Molnar --- kernel/sched/fair.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 25c7c7e09cbd..7fc4a371bdd2 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1392,6 +1392,17 @@ bool should_numa_migrate_memory(struct task_struct *p, struct page * page, int last_cpupid, this_cpupid; this_cpupid = cpu_pid_to_cpupid(dst_cpu, current->pid); + last_cpupid = page_cpupid_xchg_last(page, this_cpupid); + + /* + * Allow first faults or private faults to migrate immediately early in + * the lifetime of a task. The magic number 4 is based on waiting for + * two full passes of the "multi-stage node selection" test that is + * executed below. + */ + if ((p->numa_preferred_nid == -1 || p->numa_scan_seq <= 4) && + (cpupid_pid_unset(last_cpupid) || cpupid_match_pid(p, last_cpupid))) + return true; /* * Multi-stage node selection is used in conjunction with a periodic @@ -1410,7 +1421,6 @@ bool should_numa_migrate_memory(struct task_struct *p, struct page * page, * This quadric squishes small probabilities, making it less likely we * act on an unlikely task<->page relation. */ - last_cpupid = page_cpupid_xchg_last(page, this_cpupid); if (!cpupid_pid_unset(last_cpupid) && cpupid_to_nid(last_cpupid) != dst_nid) return false; From 4d4c2d89913e2d891bd6a34b12050a2576e60525 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= Date: Mon, 1 Oct 2018 21:45:36 +0200 Subject: [PATCH 1520/1762] drm/cma-helper: Fix crash in fbdev error path MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sergey Suloev reported a crash happening in drm_client_dev_hotplug() when fbdev had failed to register. [ 9.124598] vc4_hdmi 3f902000.hdmi: ASoC: Failed to create component debugfs directory [ 9.147667] vc4_hdmi 3f902000.hdmi: vc4-hdmi-hifi <-> 3f902000.hdmi mapping ok [ 9.155184] vc4_hdmi 3f902000.hdmi: ASoC: no DMI vendor name! [ 9.166544] vc4-drm soc:gpu: bound 3f902000.hdmi (ops vc4_hdmi_ops [vc4]) [ 9.173840] vc4-drm soc:gpu: bound 3f806000.vec (ops vc4_vec_ops [vc4]) [ 9.181029] vc4-drm soc:gpu: bound 3f004000.txp (ops vc4_txp_ops [vc4]) [ 9.188519] vc4-drm soc:gpu: bound 3f400000.hvs (ops vc4_hvs_ops [vc4]) [ 9.195690] vc4-drm soc:gpu: bound 3f206000.pixelvalve (ops vc4_crtc_ops [vc4]) [ 9.203523] vc4-drm soc:gpu: bound 3f207000.pixelvalve (ops vc4_crtc_ops [vc4]) [ 9.215032] vc4-drm soc:gpu: bound 3f807000.pixelvalve (ops vc4_crtc_ops [vc4]) [ 9.274785] vc4-drm soc:gpu: bound 3fc00000.v3d (ops vc4_v3d_ops [vc4]) [ 9.290246] [drm] Initialized vc4 0.0.0 20140616 for soc:gpu on minor 0 [ 9.297464] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 9.304600] [drm] Driver supports precise vblank timestamp query. [ 9.382856] vc4-drm soc:gpu: [drm:drm_fb_helper_fbdev_setup [drm_kms_helper]] *ERROR* Failed to set fbdev configuration [ 10.404937] Unable to handle kernel paging request at virtual address 00330a656369768a [ 10.441620] [00330a656369768a] address between user and kernel address ranges [ 10.449087] Internal error: Oops: 96000004 [#1] PREEMPT SMP [ 10.454762] Modules linked in: brcmfmac vc4 drm_kms_helper cfg80211 drm rfkill smsc95xx brcmutil usbnet drm_panel_orientation_quirks raspberrypi_hwmon bcm2835_dma crc32_ce pwm_bcm2835 bcm2835_rng virt_dma rng_core i2c_bcm2835 ip_tables x_tables ipv6 [ 10.477296] CPU: 2 PID: 45 Comm: kworker/2:1 Not tainted 4.19.0-rc5 #3 [ 10.483934] Hardware name: Raspberry Pi 3 Model B Rev 1.2 (DT) [ 10.489966] Workqueue: events output_poll_execute [drm_kms_helper] [ 10.596515] Process kworker/2:1 (pid: 45, stack limit = 0x000000007e8924dc) [ 10.603590] Call trace: [ 10.606259] drm_client_dev_hotplug+0x5c/0xb0 [drm] [ 10.611303] drm_kms_helper_hotplug_event+0x30/0x40 [drm_kms_helper] [ 10.617849] output_poll_execute+0xc4/0x1e0 [drm_kms_helper] [ 10.623616] process_one_work+0x1c8/0x318 [ 10.627695] worker_thread+0x48/0x428 [ 10.631420] kthread+0xf8/0x128 [ 10.634615] ret_from_fork+0x10/0x18 [ 10.638255] Code: 54000220 f9401261 aa1303e0 b4000141 (f9400c21) [ 10.644456] ---[ end trace c75b4a4b0e141908 ]--- The reason for this is that drm_fbdev_cma_init() removes the drm_client when fbdev registration fails, but it doesn't remove the client from the drm_device client list. So the client list now has a pointer that points into the unknown and we have a 'use after free' situation. Split drm_client_new() into drm_client_init() and drm_client_add() to fix removal in the error path. Fixes: 894a677f4b3e ("drm/cma-helper: Use the generic fbdev emulation") Reported-by: Sergey Suloev Cc: Stefan Wahren Cc: Eric Anholt Cc: Daniel Vetter Signed-off-by: Noralf Trønnes Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20181001194536.57756-1-noralf@tronnes.org --- drivers/gpu/drm/drm_client.c | 35 +++++++++++++++++++++-------- drivers/gpu/drm/drm_fb_cma_helper.c | 4 +++- drivers/gpu/drm/drm_fb_helper.c | 4 +++- include/drm/drm_client.h | 5 +++-- 4 files changed, 35 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index baff50a4c234..df31c3815092 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -63,20 +63,21 @@ static void drm_client_close(struct drm_client_dev *client) EXPORT_SYMBOL(drm_client_close); /** - * drm_client_new - Create a DRM client + * drm_client_init - Initialise a DRM client * @dev: DRM device * @client: DRM client * @name: Client name * @funcs: DRM client functions (optional) * + * This initialises the client and opens a &drm_file. Use drm_client_add() to complete the process. * The caller needs to hold a reference on @dev before calling this function. * The client is freed when the &drm_device is unregistered. See drm_client_release(). * * Returns: * Zero on success or negative error code on failure. */ -int drm_client_new(struct drm_device *dev, struct drm_client_dev *client, - const char *name, const struct drm_client_funcs *funcs) +int drm_client_init(struct drm_device *dev, struct drm_client_dev *client, + const char *name, const struct drm_client_funcs *funcs) { int ret; @@ -95,10 +96,6 @@ int drm_client_new(struct drm_device *dev, struct drm_client_dev *client, if (ret) goto err_put_module; - mutex_lock(&dev->clientlist_mutex); - list_add(&client->list, &dev->clientlist); - mutex_unlock(&dev->clientlist_mutex); - drm_dev_get(dev); return 0; @@ -109,13 +106,33 @@ err_put_module: return ret; } -EXPORT_SYMBOL(drm_client_new); +EXPORT_SYMBOL(drm_client_init); + +/** + * drm_client_add - Add client to the device list + * @client: DRM client + * + * Add the client to the &drm_device client list to activate its callbacks. + * @client must be initialized by a call to drm_client_init(). After + * drm_client_add() it is no longer permissible to call drm_client_release() + * directly (outside the unregister callback), instead cleanup will happen + * automatically on driver unload. + */ +void drm_client_add(struct drm_client_dev *client) +{ + struct drm_device *dev = client->dev; + + mutex_lock(&dev->clientlist_mutex); + list_add(&client->list, &dev->clientlist); + mutex_unlock(&dev->clientlist_mutex); +} +EXPORT_SYMBOL(drm_client_add); /** * drm_client_release - Release DRM client resources * @client: DRM client * - * Releases resources by closing the &drm_file that was opened by drm_client_new(). + * Releases resources by closing the &drm_file that was opened by drm_client_init(). * It is called automatically if the &drm_client_funcs.unregister callback is _not_ set. * * This function should only be called from the unregister callback. An exception diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c index 9da36a6271d3..9ac1f2e0f064 100644 --- a/drivers/gpu/drm/drm_fb_cma_helper.c +++ b/drivers/gpu/drm/drm_fb_cma_helper.c @@ -160,7 +160,7 @@ struct drm_fbdev_cma *drm_fbdev_cma_init(struct drm_device *dev, fb_helper = &fbdev_cma->fb_helper; - ret = drm_client_new(dev, &fb_helper->client, "fbdev", NULL); + ret = drm_client_init(dev, &fb_helper->client, "fbdev", NULL); if (ret) goto err_free; @@ -169,6 +169,8 @@ struct drm_fbdev_cma *drm_fbdev_cma_init(struct drm_device *dev, if (ret) goto err_client_put; + drm_client_add(&fb_helper->client); + return fbdev_cma; err_client_put: diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 16ec93b75dbf..515a7aec57ac 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -3218,12 +3218,14 @@ int drm_fbdev_generic_setup(struct drm_device *dev, unsigned int preferred_bpp) if (!fb_helper) return -ENOMEM; - ret = drm_client_new(dev, &fb_helper->client, "fbdev", &drm_fbdev_client_funcs); + ret = drm_client_init(dev, &fb_helper->client, "fbdev", &drm_fbdev_client_funcs); if (ret) { kfree(fb_helper); return ret; } + drm_client_add(&fb_helper->client); + fb_helper->preferred_bpp = preferred_bpp; drm_fbdev_client_hotplug(&fb_helper->client); diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h index 989f8e52864d..971bb7853776 100644 --- a/include/drm/drm_client.h +++ b/include/drm/drm_client.h @@ -87,9 +87,10 @@ struct drm_client_dev { struct drm_file *file; }; -int drm_client_new(struct drm_device *dev, struct drm_client_dev *client, - const char *name, const struct drm_client_funcs *funcs); +int drm_client_init(struct drm_device *dev, struct drm_client_dev *client, + const char *name, const struct drm_client_funcs *funcs); void drm_client_release(struct drm_client_dev *client); +void drm_client_add(struct drm_client_dev *client); void drm_client_dev_unregister(struct drm_device *dev); void drm_client_dev_hotplug(struct drm_device *dev); From b0584ea66d73919cbf5878a3420a837f06ab8396 Mon Sep 17 00:00:00 2001 From: Roman Gushchin Date: Tue, 2 Oct 2018 02:41:53 +0000 Subject: [PATCH 1521/1762] bpf: don't accept cgroup local storage with zero value size Explicitly forbid creating cgroup local storage maps with zero value size, as it makes no sense and might even cause a panic. Reported-by: syzbot+18628320d3b14a5c459c@syzkaller.appspotmail.com Signed-off-by: Roman Gushchin Cc: Alexei Starovoitov Cc: Daniel Borkmann Signed-off-by: Daniel Borkmann --- kernel/bpf/local_storage.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/bpf/local_storage.c b/kernel/bpf/local_storage.c index 94126cbffc88..830d7f095748 100644 --- a/kernel/bpf/local_storage.c +++ b/kernel/bpf/local_storage.c @@ -195,6 +195,9 @@ static struct bpf_map *cgroup_storage_map_alloc(union bpf_attr *attr) if (attr->key_size != sizeof(struct bpf_cgroup_storage_key)) return ERR_PTR(-EINVAL); + if (attr->value_size == 0) + return ERR_PTR(-EINVAL); + if (attr->value_size > PAGE_SIZE) return ERR_PTR(-E2BIG); From b45ba4a51cde29b2939365ef0c07ad34c8321789 Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Mon, 1 Oct 2018 12:21:10 +0000 Subject: [PATCH 1522/1762] powerpc/lib: fix book3s/32 boot failure due to code patching Commit 51c3c62b58b3 ("powerpc: Avoid code patching freed init sections") accesses 'init_mem_is_free' flag too early, before the kernel is relocated. This provokes early boot failure (before the console is active). As it is not necessary to do this verification that early, this patch moves the test into patch_instruction() instead of __patch_instruction(). This modification also has the advantage of avoiding unnecessary remappings. Fixes: 51c3c62b58b3 ("powerpc: Avoid code patching freed init sections") Cc: stable@vger.kernel.org # 4.13+ Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman --- arch/powerpc/lib/code-patching.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c index 6ae2777c220d..5ffee298745f 100644 --- a/arch/powerpc/lib/code-patching.c +++ b/arch/powerpc/lib/code-patching.c @@ -28,12 +28,6 @@ static int __patch_instruction(unsigned int *exec_addr, unsigned int instr, { int err; - /* Make sure we aren't patching a freed init section */ - if (init_mem_is_free && init_section_contains(exec_addr, 4)) { - pr_debug("Skipping init section patching addr: 0x%px\n", exec_addr); - return 0; - } - __put_user_size(instr, patch_addr, 4, err); if (err) return err; @@ -148,7 +142,7 @@ static inline int unmap_patch_area(unsigned long addr) return 0; } -int patch_instruction(unsigned int *addr, unsigned int instr) +static int do_patch_instruction(unsigned int *addr, unsigned int instr) { int err; unsigned int *patch_addr = NULL; @@ -188,12 +182,22 @@ out: } #else /* !CONFIG_STRICT_KERNEL_RWX */ -int patch_instruction(unsigned int *addr, unsigned int instr) +static int do_patch_instruction(unsigned int *addr, unsigned int instr) { return raw_patch_instruction(addr, instr); } #endif /* CONFIG_STRICT_KERNEL_RWX */ + +int patch_instruction(unsigned int *addr, unsigned int instr) +{ + /* Make sure we aren't patching a freed init section */ + if (init_mem_is_free && init_section_contains(addr, 4)) { + pr_debug("Skipping init section patching addr: 0x%px\n", addr); + return 0; + } + return do_patch_instruction(addr, instr); +} NOKPROBE_SYMBOL(patch_instruction); int patch_branch(unsigned int *addr, unsigned long target, int flags) From 86da809dda64a63fc27e05a215475325c3aaae92 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Mon, 24 Sep 2018 13:20:44 +0300 Subject: [PATCH 1523/1762] thunderbolt: Do not handle ICM events after domain is stopped If there is a long chain of devices connected when the driver is loaded ICM sends device connected event for each and those are put to tb->wq for later processing. Now if the driver gets unloaded in the middle, so that the work queue is not yet empty it gets flushed by tb_domain_stop(). However, by that time the root switch is already removed so the driver crashes when it tries to dereference it in ICM event handling callbacks. Fix this by checking whether the root switch is already removed. If it is we know that the domain is stopped and we should merely skip handling the event. Signed-off-by: Mika Westerberg Signed-off-by: Greg Kroah-Hartman --- drivers/thunderbolt/icm.c | 49 ++++++++++++++++----------------------- 1 file changed, 20 insertions(+), 29 deletions(-) diff --git a/drivers/thunderbolt/icm.c b/drivers/thunderbolt/icm.c index e1e264a9a4c7..28fc4ce75edb 100644 --- a/drivers/thunderbolt/icm.c +++ b/drivers/thunderbolt/icm.c @@ -738,14 +738,6 @@ icm_fr_xdomain_connected(struct tb *tb, const struct icm_pkg_header *hdr) u8 link, depth; u64 route; - /* - * After NVM upgrade adding root switch device fails because we - * initiated reset. During that time ICM might still send - * XDomain connected message which we ignore here. - */ - if (!tb->root_switch) - return; - link = pkg->link_info & ICM_LINK_INFO_LINK_MASK; depth = (pkg->link_info & ICM_LINK_INFO_DEPTH_MASK) >> ICM_LINK_INFO_DEPTH_SHIFT; @@ -1037,14 +1029,6 @@ icm_tr_device_connected(struct tb *tb, const struct icm_pkg_header *hdr) if (pkg->hdr.packet_id) return; - /* - * After NVM upgrade adding root switch device fails because we - * initiated reset. During that time ICM might still send device - * connected message which we ignore here. - */ - if (!tb->root_switch) - return; - route = get_route(pkg->route_hi, pkg->route_lo); authorized = pkg->link_info & ICM_LINK_INFO_APPROVED; security_level = (pkg->hdr.flags & ICM_FLAGS_SLEVEL_MASK) >> @@ -1408,19 +1392,26 @@ static void icm_handle_notification(struct work_struct *work) mutex_lock(&tb->lock); - switch (n->pkg->code) { - case ICM_EVENT_DEVICE_CONNECTED: - icm->device_connected(tb, n->pkg); - break; - case ICM_EVENT_DEVICE_DISCONNECTED: - icm->device_disconnected(tb, n->pkg); - break; - case ICM_EVENT_XDOMAIN_CONNECTED: - icm->xdomain_connected(tb, n->pkg); - break; - case ICM_EVENT_XDOMAIN_DISCONNECTED: - icm->xdomain_disconnected(tb, n->pkg); - break; + /* + * When the domain is stopped we flush its workqueue but before + * that the root switch is removed. In that case we should treat + * the queued events as being canceled. + */ + if (tb->root_switch) { + switch (n->pkg->code) { + case ICM_EVENT_DEVICE_CONNECTED: + icm->device_connected(tb, n->pkg); + break; + case ICM_EVENT_DEVICE_DISCONNECTED: + icm->device_disconnected(tb, n->pkg); + break; + case ICM_EVENT_XDOMAIN_CONNECTED: + icm->xdomain_connected(tb, n->pkg); + break; + case ICM_EVENT_XDOMAIN_DISCONNECTED: + icm->xdomain_disconnected(tb, n->pkg); + break; + } } mutex_unlock(&tb->lock); From eafa717bc145963c944bb0a64d16add683861b35 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Mon, 24 Sep 2018 13:20:45 +0300 Subject: [PATCH 1524/1762] thunderbolt: Initialize after IOMMUs If IOMMU is enabled and Thunderbolt driver is built into the kernel image, it will be probed before IOMMUs are attached to the PCI bus. Because of this DMA mappings the driver does will not go through IOMMU and start failing right after IOMMUs are enabled. For this reason move the Thunderbolt driver initialization happen at rootfs level. Signed-off-by: Mika Westerberg Signed-off-by: Greg Kroah-Hartman --- drivers/thunderbolt/nhi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c index 88cff05a1808..5cd6bdfa068f 100644 --- a/drivers/thunderbolt/nhi.c +++ b/drivers/thunderbolt/nhi.c @@ -1191,5 +1191,5 @@ static void __exit nhi_unload(void) tb_domain_exit(); } -fs_initcall(nhi_init); +rootfs_initcall(nhi_init); module_exit(nhi_unload); From 657ade07df72847f591ccdb36bd9b91ed0edbac3 Mon Sep 17 00:00:00 2001 From: Rickard x Andersson Date: Tue, 2 Oct 2018 14:49:32 +0200 Subject: [PATCH 1525/1762] net: fec: fix rare tx timeout During certain heavy network loads TX could time out with TX ring dump. TX is sometimes never restarted after reaching "tx_stop_threshold" because function "fec_enet_tx_queue" only tests the first queue. In addition the TX timeout callback function failed to recover because it also operated only on the first queue. Signed-off-by: Rickard x Andersson Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/fec_main.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 2708297e7795..bf9b9fd6d2a0 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -1158,7 +1158,7 @@ static void fec_enet_timeout_work(struct work_struct *work) napi_disable(&fep->napi); netif_tx_lock_bh(ndev); fec_restart(ndev); - netif_wake_queue(ndev); + netif_tx_wake_all_queues(ndev); netif_tx_unlock_bh(ndev); napi_enable(&fep->napi); } @@ -1273,7 +1273,7 @@ skb_done: /* Since we have freed up a buffer, the ring is no longer full */ - if (netif_queue_stopped(ndev)) { + if (netif_tx_queue_stopped(nq)) { entries_free = fec_enet_get_free_txdesc_num(txq); if (entries_free >= txq->tx_wake_threshold) netif_tx_wake_queue(nq); @@ -1746,7 +1746,7 @@ static void fec_enet_adjust_link(struct net_device *ndev) napi_disable(&fep->napi); netif_tx_lock_bh(ndev); fec_restart(ndev); - netif_wake_queue(ndev); + netif_tx_wake_all_queues(ndev); netif_tx_unlock_bh(ndev); napi_enable(&fep->napi); } @@ -2247,7 +2247,7 @@ static int fec_enet_set_pauseparam(struct net_device *ndev, napi_disable(&fep->napi); netif_tx_lock_bh(ndev); fec_restart(ndev); - netif_wake_queue(ndev); + netif_tx_wake_all_queues(ndev); netif_tx_unlock_bh(ndev); napi_enable(&fep->napi); } From fe3a83af6a50199bf250fa331e94216912f79395 Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Tue, 2 Oct 2018 14:23:45 +0100 Subject: [PATCH 1526/1762] declance: Fix continuation with the adapter identification message Fix a commit 4bcc595ccd80 ("printk: reinstate KERN_CONT for printing continuation lines") regression with the `declance' driver, which caused the adapter identification message to be split between two lines, e.g.: declance.c: v0.011 by Linux MIPS DECstation task force tc6: PMAD-AA , addr = 08:00:2b:1b:2a:6a, irq = 14 tc6: registered as eth0. Address that properly, by printing identification with a single call, making the messages now look like: declance.c: v0.011 by Linux MIPS DECstation task force tc6: PMAD-AA, addr = 08:00:2b:1b:2a:6a, irq = 14 tc6: registered as eth0. Signed-off-by: Maciej W. Rozycki Fixes: 4bcc595ccd80 ("printk: reinstate KERN_CONT for printing continuation lines") Signed-off-by: David S. Miller --- drivers/net/ethernet/amd/declance.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/amd/declance.c b/drivers/net/ethernet/amd/declance.c index 116997a8b593..00332a1ea84b 100644 --- a/drivers/net/ethernet/amd/declance.c +++ b/drivers/net/ethernet/amd/declance.c @@ -1031,6 +1031,7 @@ static int dec_lance_probe(struct device *bdev, const int type) int i, ret; unsigned long esar_base; unsigned char *esar; + const char *desc; if (dec_lance_debug && version_printed++ == 0) printk(version); @@ -1216,19 +1217,20 @@ static int dec_lance_probe(struct device *bdev, const int type) */ switch (type) { case ASIC_LANCE: - printk("%s: IOASIC onboard LANCE", name); + desc = "IOASIC onboard LANCE"; break; case PMAD_LANCE: - printk("%s: PMAD-AA", name); + desc = "PMAD-AA"; break; case PMAX_LANCE: - printk("%s: PMAX onboard LANCE", name); + desc = "PMAX onboard LANCE"; break; } for (i = 0; i < 6; i++) dev->dev_addr[i] = esar[i * 4]; - printk(", addr = %pM, irq = %d\n", dev->dev_addr, dev->irq); + printk("%s: %s, addr = %pM, irq = %d\n", + name, desc, dev->dev_addr, dev->irq); dev->netdev_ops = &lance_netdev_ops; dev->watchdog_timeo = 5*HZ; From ff58e2df62ce29d0552278c290ae494b30fe0c6f Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Tue, 2 Oct 2018 10:10:14 -0700 Subject: [PATCH 1527/1762] nfp: avoid soft lockups under control message storm When FW floods the driver with control messages try to exit the cmsg processing loop every now and then to avoid soft lockups. Cmsg processing is generally very lightweight so 512 seems like a reasonable budget, which should not be exceeded under normal conditions. Fixes: 77ece8d5f196 ("nfp: add control vNIC datapath") Signed-off-by: Jakub Kicinski Reviewed-by: Simon Horman Tested-by: Pieter Jansen van Vuuren Signed-off-by: David S. Miller --- .../net/ethernet/netronome/nfp/nfp_net_common.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index 8ed38fd5a852..c6d29fdbb880 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -2077,14 +2077,17 @@ nfp_ctrl_rx_one(struct nfp_net *nn, struct nfp_net_dp *dp, return true; } -static void nfp_ctrl_rx(struct nfp_net_r_vector *r_vec) +static bool nfp_ctrl_rx(struct nfp_net_r_vector *r_vec) { struct nfp_net_rx_ring *rx_ring = r_vec->rx_ring; struct nfp_net *nn = r_vec->nfp_net; struct nfp_net_dp *dp = &nn->dp; + unsigned int budget = 512; - while (nfp_ctrl_rx_one(nn, dp, r_vec, rx_ring)) + while (nfp_ctrl_rx_one(nn, dp, r_vec, rx_ring) && budget--) continue; + + return budget; } static void nfp_ctrl_poll(unsigned long arg) @@ -2096,9 +2099,13 @@ static void nfp_ctrl_poll(unsigned long arg) __nfp_ctrl_tx_queued(r_vec); spin_unlock_bh(&r_vec->lock); - nfp_ctrl_rx(r_vec); - - nfp_net_irq_unmask(r_vec->nfp_net, r_vec->irq_entry); + if (nfp_ctrl_rx(r_vec)) { + nfp_net_irq_unmask(r_vec->nfp_net, r_vec->irq_entry); + } else { + tasklet_schedule(&r_vec->tasklet); + nn_dp_warn(&r_vec->nfp_net->dp, + "control message budget exceeded!\n"); + } } /* Setup and Configuration From 20a8378aa9dd108a01cb0e695599f5257a885c4b Mon Sep 17 00:00:00 2001 From: Mike Travis Date: Tue, 2 Oct 2018 13:01:45 -0500 Subject: [PATCH 1528/1762] x86/platform/uv: Provide is_early_uv_system() Introduce is_early_uv_system() which uses efi.uv_systab to decide early in the boot process whether the kernel runs on a UV system. This is needed to skip other early setup/init code that might break the UV platform if done too early such as before necessary ACPI tables parsing takes place. Suggested-by: Hedi Berriche Signed-off-by: Mike Travis Signed-off-by: Thomas Gleixner Reviewed-by: Russ Anderson Reviewed-by: Dimitri Sivanich Cc: "H. Peter Anvin" Cc: Russ Anderson Cc: Dimitri Sivanich Cc: Borislav Petkov Cc: Kate Stewart Cc: Greg Kroah-Hartman Cc: Philippe Ombredanne Cc: Pavel Tatashin Cc: Peter Zijlstra Cc: Len Brown Cc: Dou Liyang Cc: Xiaoming Gao Cc: Rajvi Jingar Link: https://lkml.kernel.org/r/20181002180144.801700401@stormcage.americas.sgi.com --- arch/x86/include/asm/uv/uv.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h index a80c0673798f..e60c45fd3679 100644 --- a/arch/x86/include/asm/uv/uv.h +++ b/arch/x86/include/asm/uv/uv.h @@ -10,8 +10,13 @@ struct cpumask; struct mm_struct; #ifdef CONFIG_X86_UV +#include extern enum uv_system_type get_uv_system_type(void); +static inline bool is_early_uv_system(void) +{ + return !((efi.uv_systab == EFI_INVALID_TABLE_ADDR) || !efi.uv_systab); +} extern int is_uv_system(void); extern int is_uv_hubless(void); extern void uv_cpu_init(void); @@ -23,6 +28,7 @@ extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, #else /* X86_UV */ static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; } +static inline bool is_early_uv_system(void) { return 0; } static inline int is_uv_system(void) { return 0; } static inline int is_uv_hubless(void) { return 0; } static inline void uv_cpu_init(void) { } From 2647c43c7f3ba4b752bfce261d53b16e2f5bc9e3 Mon Sep 17 00:00:00 2001 From: Mike Travis Date: Tue, 2 Oct 2018 13:01:46 -0500 Subject: [PATCH 1529/1762] x86/tsc: Fix UV TSC initialization The recent rework of the TSC calibration code introduced a regression on UV systems as it added a call to tsc_early_init() which initializes the TSC ADJUST values before acpi_boot_table_init(). In the case of UV systems, that is a necessary step that calls uv_system_init(). This informs tsc_sanitize_first_cpu() that the kernel runs on a platform with async TSC resets as documented in commit 341102c3ef29 ("x86/tsc: Add option that TSC on Socket 0 being non-zero is valid") Fix it by skipping the early tsc initialization on UV systems and let TSC init tests take place later in tsc_init(). Fixes: cf7a63ef4e02 ("x86/tsc: Calibrate tsc only once") Suggested-by: Hedi Berriche Signed-off-by: Mike Travis Signed-off-by: Thomas Gleixner Reviewed-by: Russ Anderson Reviewed-by: Dimitri Sivanich Cc: "H. Peter Anvin" Cc: Russ Anderson Cc: Dimitri Sivanich Cc: Borislav Petkov Cc: Kate Stewart Cc: Greg Kroah-Hartman Cc: Philippe Ombredanne Cc: Pavel Tatashin Cc: Peter Zijlstra Cc: Len Brown Cc: Dou Liyang Cc: Xiaoming Gao Cc: Rajvi Jingar Link: https://lkml.kernel.org/r/20181002180144.923579706@stormcage.americas.sgi.com --- arch/x86/kernel/tsc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 6490f618e096..b52bd2b6cdb4 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -26,6 +26,7 @@ #include #include #include +#include unsigned int __read_mostly cpu_khz; /* TSC clocks / usec, not used here */ EXPORT_SYMBOL(cpu_khz); @@ -1433,6 +1434,9 @@ void __init tsc_early_init(void) { if (!boot_cpu_has(X86_FEATURE_TSC)) return; + /* Don't change UV TSC multi-chassis synchronization */ + if (is_early_uv_system()) + return; if (!determine_cpu_tsc_frequencies(true)) return; loops_per_jiffy = get_loops_per_jiffy(); From ef1f2258748b675422ca0107e5bfb9ceeac675de Mon Sep 17 00:00:00 2001 From: Atish Patra Date: Tue, 11 Sep 2018 11:30:18 -0700 Subject: [PATCH 1530/1762] RISCV: Fix end PFN for low memory Use memblock_end_of_DRAM which provides correct last low memory PFN. Without that, DMA32 region becomes empty resulting in zero pages being allocated for DMA32. This patch is based on earlier patch from palmer which never merged into 4.19. I just edited the commit text to make more sense. Signed-off-by: Atish Patra Signed-off-by: Palmer Dabbelt --- arch/riscv/kernel/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c index aee603123030..b2d26d9d8489 100644 --- a/arch/riscv/kernel/setup.c +++ b/arch/riscv/kernel/setup.c @@ -186,7 +186,7 @@ static void __init setup_bootmem(void) BUG_ON(mem_size == 0); set_max_mapnr(PFN_DOWN(mem_size)); - max_low_pfn = pfn_base + PFN_DOWN(mem_size); + max_low_pfn = memblock_end_of_DRAM(); #ifdef CONFIG_BLK_DEV_INITRD setup_initrd(); From beeeac43b6fae5f5eaf707b6fcc2bf1e09deb785 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Mon, 1 Oct 2018 21:42:37 -0700 Subject: [PATCH 1531/1762] Revert "serial: 8250_dw: Fix runtime PM handling" This reverts commit d76c74387e1c978b6c5524a146ab0f3f72206f98. While commit d76c74387e1c ("serial: 8250_dw: Fix runtime PM handling") fixes runtime PM handling when using kgdb, it introduces a traceback for everyone else. BUG: sleeping function called from invalid context at /mnt/host/source/src/third_party/kernel/next/drivers/base/power/runtime.c:1034 in_atomic(): 1, irqs_disabled(): 1, pid: 1, name: swapper/0 7 locks held by swapper/0/1: #0: 000000005ec5bc72 (&dev->mutex){....}, at: __driver_attach+0xb5/0x12b #1: 000000005d5fa9e5 (&dev->mutex){....}, at: __device_attach+0x3e/0x15b #2: 0000000047e93286 (serial_mutex){+.+.}, at: serial8250_register_8250_port+0x51/0x8bb #3: 000000003b328f07 (port_mutex){+.+.}, at: uart_add_one_port+0xab/0x8b0 #4: 00000000fa313d4d (&port->mutex){+.+.}, at: uart_add_one_port+0xcc/0x8b0 #5: 00000000090983ca (console_lock){+.+.}, at: vprintk_emit+0xdb/0x217 #6: 00000000c743e583 (console_owner){-...}, at: console_unlock+0x211/0x60f irq event stamp: 735222 __down_trylock_console_sem+0x4a/0x84 console_unlock+0x338/0x60f __do_softirq+0x4a4/0x50d irq_exit+0x64/0xe2 CPU: 2 PID: 1 Comm: swapper/0 Not tainted 4.19.0-rc5 #6 Hardware name: Google Caroline/Caroline, BIOS Google_Caroline.7820.286.0 03/15/2017 Call Trace: dump_stack+0x7d/0xbd ___might_sleep+0x238/0x259 __pm_runtime_resume+0x4e/0xa4 ? serial8250_rpm_get+0x2e/0x44 serial8250_console_write+0x44/0x301 ? lock_acquire+0x1b8/0x1fa console_unlock+0x577/0x60f vprintk_emit+0x1f0/0x217 printk+0x52/0x6e register_console+0x43b/0x524 uart_add_one_port+0x672/0x8b0 ? set_io_from_upio+0x150/0x162 serial8250_register_8250_port+0x825/0x8bb dw8250_probe+0x80c/0x8b0 ? dw8250_serial_inq+0x8e/0x8e ? dw8250_check_lcr+0x108/0x108 ? dw8250_runtime_resume+0x5b/0x5b ? dw8250_serial_outq+0xa1/0xa1 ? dw8250_remove+0x115/0x115 platform_drv_probe+0x76/0xc5 really_probe+0x1f1/0x3ee ? driver_allows_async_probing+0x5d/0x5d driver_probe_device+0xd6/0x112 ? driver_allows_async_probing+0x5d/0x5d bus_for_each_drv+0xbe/0xe5 __device_attach+0xdd/0x15b bus_probe_device+0x5a/0x10b device_add+0x501/0x894 ? _raw_write_unlock+0x27/0x3a platform_device_add+0x224/0x2b7 mfd_add_device+0x718/0x75b ? __kmalloc+0x144/0x16a ? mfd_add_devices+0x38/0xdb mfd_add_devices+0x9b/0xdb intel_lpss_probe+0x7d4/0x8ee intel_lpss_pci_probe+0xac/0xd4 pci_device_probe+0x101/0x18e ... Revert the offending patch until a more comprehensive solution is available. Cc: Tony Lindgren Cc: Andy Shevchenko Cc: Phil Edworthy Fixes: d76c74387e1c ("serial: 8250_dw: Fix runtime PM handling") Signed-off-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/8250/8250_dw.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index fa8dcb470640..d31b975dd3fd 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -630,10 +630,6 @@ static int dw8250_probe(struct platform_device *pdev) if (!data->skip_autocfg) dw8250_setup_port(p); -#ifdef CONFIG_PM - uart.capabilities |= UART_CAP_RPM; -#endif - /* If we have a valid fifosize, try hooking up DMA */ if (p->fifosize) { data->dma.rxconf.src_maxburst = p->fifosize / 4; From 10653022456dc77b398777fd8e95126c77954b49 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 30 Aug 2018 14:54:03 +0200 Subject: [PATCH 1532/1762] Revert "serial: sh-sci: Remove SCIx_RZ_SCIFA_REGTYPE" This reverts commit 7acece71a517cad83a0842a94d94c13f271b680c. Signed-off-by: Geert Uytterhoeven Acked-by: Chris Brandt Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/sh-sci.c | 31 +++++++++++++++++++++++++++++++ include/linux/serial_sci.h | 1 + 2 files changed, 32 insertions(+) diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index ac4424bf6b13..5d42c9a63001 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -291,6 +291,33 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = { .error_clear = SCIF_ERROR_CLEAR, }, + /* + * The "SCIFA" that is in RZ/T and RZ/A2. + * It looks like a normal SCIF with FIFO data, but with a + * compressed address space. Also, the break out of interrupts + * are different: ERI/BRI, RXI, TXI, TEI, DRI. + */ + [SCIx_RZ_SCIFA_REGTYPE] = { + .regs = { + [SCSMR] = { 0x00, 16 }, + [SCBRR] = { 0x02, 8 }, + [SCSCR] = { 0x04, 16 }, + [SCxTDR] = { 0x06, 8 }, + [SCxSR] = { 0x08, 16 }, + [SCxRDR] = { 0x0A, 8 }, + [SCFCR] = { 0x0C, 16 }, + [SCFDR] = { 0x0E, 16 }, + [SCSPTR] = { 0x10, 16 }, + [SCLSR] = { 0x12, 16 }, + }, + .fifosize = 16, + .overrun_reg = SCLSR, + .overrun_mask = SCLSR_ORER, + .sampling_rate_mask = SCI_SR(32), + .error_mask = SCIF_DEFAULT_ERROR_MASK, + .error_clear = SCIF_ERROR_CLEAR, + }, + /* * Common SH-3 SCIF definitions. */ @@ -3110,6 +3137,10 @@ static const struct of_device_id of_sci_match[] = { .compatible = "renesas,scif-r7s72100", .data = SCI_OF_DATA(PORT_SCIF, SCIx_SH2_SCIF_FIFODATA_REGTYPE), }, + { + .compatible = "renesas,scif-r7s9210", + .data = SCI_OF_DATA(PORT_SCIF, SCIx_RZ_SCIFA_REGTYPE), + }, /* Family-specific types */ { .compatible = "renesas,rcar-gen1-scif", diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h index c0e795d95477..1c89611e0e06 100644 --- a/include/linux/serial_sci.h +++ b/include/linux/serial_sci.h @@ -36,6 +36,7 @@ enum { SCIx_SH4_SCIF_FIFODATA_REGTYPE, SCIx_SH7705_SCIF_REGTYPE, SCIx_HSCIF_REGTYPE, + SCIx_RZ_SCIFA_REGTYPE, SCIx_NR_REGTYPES, }; From 5b162cc4ac27ba76e576abc9090c54cf90a17980 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 30 Aug 2018 14:54:04 +0200 Subject: [PATCH 1533/1762] Revert "serial: sh-sci: Allow for compressed SCIF address" This reverts commit 2d4dd0da45401c7ae7332b4d1eb7bbb1348edde9. This broke earlycon on all Renesas ARM platforms using a SCIF port for the serial console (R-Car, RZ/A1, RZ/G1, RZ/G2 SoCs), due to an incorrect value of port->regshift. Signed-off-by: Geert Uytterhoeven Acked-by: Chris Brandt Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/sh-sci.c | 25 ++++++++++--------------- 1 file changed, 10 insertions(+), 15 deletions(-) diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 5d42c9a63001..ab3f6e91853d 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -346,15 +346,15 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = { [SCIx_SH4_SCIF_REGTYPE] = { .regs = { [SCSMR] = { 0x00, 16 }, - [SCBRR] = { 0x02, 8 }, - [SCSCR] = { 0x04, 16 }, - [SCxTDR] = { 0x06, 8 }, - [SCxSR] = { 0x08, 16 }, - [SCxRDR] = { 0x0a, 8 }, - [SCFCR] = { 0x0c, 16 }, - [SCFDR] = { 0x0e, 16 }, - [SCSPTR] = { 0x10, 16 }, - [SCLSR] = { 0x12, 16 }, + [SCBRR] = { 0x04, 8 }, + [SCSCR] = { 0x08, 16 }, + [SCxTDR] = { 0x0c, 8 }, + [SCxSR] = { 0x10, 16 }, + [SCxRDR] = { 0x14, 8 }, + [SCFCR] = { 0x18, 16 }, + [SCFDR] = { 0x1c, 16 }, + [SCSPTR] = { 0x20, 16 }, + [SCLSR] = { 0x24, 16 }, }, .fifosize = 16, .overrun_reg = SCLSR, @@ -2837,7 +2837,7 @@ static int sci_init_single(struct platform_device *dev, { struct uart_port *port = &sci_port->port; const struct resource *res; - unsigned int i, regtype; + unsigned int i; int ret; sci_port->cfg = p; @@ -2874,7 +2874,6 @@ static int sci_init_single(struct platform_device *dev, if (unlikely(sci_port->params == NULL)) return -EINVAL; - regtype = sci_port->params - sci_port_params; switch (p->type) { case PORT_SCIFB: sci_port->rx_trigger = 48; @@ -2929,10 +2928,6 @@ static int sci_init_single(struct platform_device *dev, port->regshift = 1; } - if (regtype == SCIx_SH4_SCIF_REGTYPE) - if (sci_port->reg_size >= 0x20) - port->regshift = 1; - /* * The UART port needs an IRQ value, so we peg this to the RX IRQ * for the multi-IRQ ports, which is where we are primarily From 2ab2ddd301a22ca3c5f0b743593e4ad2953dfa53 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 2 Oct 2018 12:35:05 -0700 Subject: [PATCH 1534/1762] inet: make sure to grab rcu_read_lock before using ireq->ireq_opt Timer handlers do not imply rcu_read_lock(), so my recent fix triggered a LOCKDEP warning when SYNACK is retransmit. Lets add rcu_read_lock()/rcu_read_unlock() pairs around ireq->ireq_opt usages instead of guessing what is done by callers, since it is not worth the pain. Get rid of ireq_opt_deref() helper since it hides the logic without real benefit, since it is now a standard rcu_dereference(). Fixes: 1ad98e9d1bdf ("tcp/dccp: fix lockdep issue when SYN is backlogged") Signed-off-by: Eric Dumazet Reported-by: Willem de Bruijn Signed-off-by: David S. Miller --- include/net/inet_sock.h | 5 ----- net/dccp/ipv4.c | 4 +++- net/ipv4/inet_connection_sock.c | 5 ++++- net/ipv4/tcp_ipv4.c | 4 +++- 4 files changed, 10 insertions(+), 8 deletions(-) diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index a8cd5cf9ff5b..a80fd0ac4563 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h @@ -130,11 +130,6 @@ static inline int inet_request_bound_dev_if(const struct sock *sk, return sk->sk_bound_dev_if; } -static inline struct ip_options_rcu *ireq_opt_deref(const struct inet_request_sock *ireq) -{ - return rcu_dereference(ireq->ireq_opt); -} - struct inet_cork { unsigned int flags; __be32 addr; diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index b08feb219b44..8e08cea6f178 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -493,9 +493,11 @@ static int dccp_v4_send_response(const struct sock *sk, struct request_sock *req dh->dccph_checksum = dccp_v4_csum_finish(skb, ireq->ir_loc_addr, ireq->ir_rmt_addr); + rcu_read_lock(); err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr, ireq->ir_rmt_addr, - ireq_opt_deref(ireq)); + rcu_dereference(ireq->ireq_opt)); + rcu_read_unlock(); err = net_xmit_eval(err); } diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index dfd5009f96ef..15e7f7915a21 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -544,7 +544,8 @@ struct dst_entry *inet_csk_route_req(const struct sock *sk, struct ip_options_rcu *opt; struct rtable *rt; - opt = ireq_opt_deref(ireq); + rcu_read_lock(); + opt = rcu_dereference(ireq->ireq_opt); flowi4_init_output(fl4, ireq->ir_iif, ireq->ir_mark, RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE, @@ -558,11 +559,13 @@ struct dst_entry *inet_csk_route_req(const struct sock *sk, goto no_route; if (opt && opt->opt.is_strictroute && rt->rt_uses_gateway) goto route_err; + rcu_read_unlock(); return &rt->dst; route_err: ip_rt_put(rt); no_route: + rcu_read_unlock(); __IP_INC_STATS(net, IPSTATS_MIB_OUTNOROUTES); return NULL; } diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 44c09eddbb78..cd426313a298 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -943,9 +943,11 @@ static int tcp_v4_send_synack(const struct sock *sk, struct dst_entry *dst, if (skb) { __tcp_v4_send_check(skb, ireq->ir_loc_addr, ireq->ir_rmt_addr); + rcu_read_lock(); err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr, ireq->ir_rmt_addr, - ireq_opt_deref(ireq)); + rcu_dereference(ireq->ireq_opt)); + rcu_read_unlock(); err = net_xmit_eval(err); } From 0f3b914c9cfcd7bbedd445dc4ac5dd999fa213c2 Mon Sep 17 00:00:00 2001 From: Mahesh Bandewar Date: Tue, 2 Oct 2018 12:14:34 -0700 Subject: [PATCH 1535/1762] bonding: fix warning message RX queue config for bonding master could be different from its slave device(s). With the commit 6a9e461f6fe4 ("bonding: pass link-local packets to bonding master also."), the packet is reinjected into stack with skb->dev as bonding master. This potentially triggers the message: "bondX received packet on queue Y, but number of RX queues is Z" whenever the queue that packet is received on is higher than the numrxqueues on bonding master (Y > Z). Fixes: 6a9e461f6fe4 ("bonding: pass link-local packets to bonding master also.") Reported-by: John Sperbeck Signed-off-by: Eric Dumazet Signed-off-by: Mahesh Bandewar Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index c05c01a00755..ee28ec9e0aba 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1187,6 +1187,7 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb) if (nskb) { nskb->dev = bond->dev; + nskb->queue_mapping = 0; netif_rx(nskb); } return RX_HANDLER_PASS; From 0e1d6eca5113858ed2caea61a5adc03c595f6096 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 2 Oct 2018 15:47:35 -0700 Subject: [PATCH 1536/1762] rtnl: limit IFLA_NUM_TX_QUEUES and IFLA_NUM_RX_QUEUES to 4096 We have an impressive number of syzkaller bugs that are linked to the fact that syzbot was able to create a networking device with millions of TX (or RX) queues. Let's limit the number of RX/TX queues to 4096, this really should cover all known cases. A separate patch will add various cond_resched() in the loops handling sysfs entries at device creation and dismantle. Tested: lpaa6:~# ip link add gre-4097 numtxqueues 4097 numrxqueues 4097 type ip6gretap RTNETLINK answers: Invalid argument lpaa6:~# time ip link add gre-4096 numtxqueues 4096 numrxqueues 4096 type ip6gretap real 0m0.180s user 0m0.000s sys 0m0.107s Fixes: 76ff5cc91935 ("rtnl: allow to specify number of rx and tx queues on device creation") Signed-off-by: Eric Dumazet Reported-by: syzbot Signed-off-by: David S. Miller --- net/core/rtnetlink.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 7f37fe9c65a5..448703312fed 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -2835,6 +2835,12 @@ struct net_device *rtnl_create_link(struct net *net, else if (ops->get_num_rx_queues) num_rx_queues = ops->get_num_rx_queues(); + if (num_tx_queues < 1 || num_tx_queues > 4096) + return ERR_PTR(-EINVAL); + + if (num_rx_queues < 1 || num_rx_queues > 4096) + return ERR_PTR(-EINVAL); + dev = alloc_netdev_mqs(ops->priv_size, ifname, name_assign_type, ops->setup, num_tx_queues, num_rx_queues); if (!dev) From 0595751f267994c3c7027377058e4185b3a28e75 Mon Sep 17 00:00:00 2001 From: Aurelien Aptel Date: Thu, 17 May 2018 16:35:07 +0200 Subject: [PATCH 1537/1762] smb2: fix missing files in root share directory listing When mounting a Windows share that is the root of a drive (eg. C$) the server does not return . and .. directory entries. This results in the smb2 code path erroneously skipping the 2 first entries. Pseudo-code of the readdir() code path: cifs_readdir(struct file, struct dir_context) initiate_cifs_search <-- if no reponse cached yet server->ops->query_dir_first dir_emit_dots dir_emit <-- adds "." and ".." if we're at pos=0 find_cifs_entry initiate_cifs_search <-- if pos < start of current response (restart search) server->ops->query_dir_next <-- if pos > end of current response (fetch next search res) for(...) <-- loops over cur response entries starting at pos cifs_filldir <-- skip . and .., emit entry cifs_fill_dirent dir_emit pos++ A) dir_emit_dots() always adds . & .. and sets the current dir pos to 2 (0 and 1 are done). Therefore we always want the index_to_find to be 2 regardless of if the response has . and .. B) smb1 code initializes index_of_last_entry with a +2 offset in cifssmb.c CIFSFindFirst(): psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + psrch_inf->entries_in_buffer; Later in find_cifs_entry() we want to find the next dir entry at pos=2 as a result of (A) first_entry_in_buffer = cfile->srch_inf.index_of_last_entry - cfile->srch_inf.entries_in_buffer; This var is the dir pos that the first entry in the buffer will have therefore it must be 2 in the first call. If we don't offset index_of_last_entry by 2 (like in (B)), first_entry_in_buffer=0 but we were instructed to get pos=2 so this code in find_cifs_entry() skips the 2 first which is ok for non-root shares, as it skips . and .. from the response but is not ok for root shares where the 2 first are actual files pos_in_buf = index_to_find - first_entry_in_buffer; // pos_in_buf=2 // we skip 2 first response entries :( for (i = 0; (i < (pos_in_buf)) && (cur_ent != NULL); i++) { /* go entry by entry figuring out which is first */ cur_ent = nxt_dir_entry(cur_ent, end_of_smb, cfile->srch_inf.info_level); } C) cifs_filldir() skips . and .. so we can safely ignore them for now. Sample program: int main(int argc, char **argv) { const char *path = argc >= 2 ? argv[1] : "."; DIR *dh; struct dirent *de; printf("listing path <%s>\n", path); dh = opendir(path); if (!dh) { printf("opendir error %d\n", errno); return 1; } while (1) { de = readdir(dh); if (!de) { if (errno) { printf("readdir error %d\n", errno); return 1; } printf("end of listing\n"); break; } printf("off=%lu <%s>\n", de->d_off, de->d_name); } return 0; } Before the fix with SMB1 on root shares: <.> off=1 <..> off=2 <$Recycle.Bin> off=3 off=4 and on non-root shares: <.> off=1 <..> off=4 <-- after adding .., the offsets jumps to +2 because <2536> off=5 we skipped . and .. from response buffer (C) <411> off=6 but still incremented pos off=7 off=8 Therefore the fix for smb2 is to mimic smb1 behaviour and offset the index_of_last_entry by 2. Test results comparing smb1 and smb2 before/after the fix on root share, non-root shares and on large directories (ie. multi-response dir listing): PRE FIX ======= pre-1-root VS pre-2-root: ERR pre-2-root is missing [bootmgr, $Recycle.Bin] pre-1-nonroot VS pre-2-nonroot: OK~ same files, same order, different offsets pre-1-nonroot-large VS pre-2-nonroot-large: OK~ same files, same order, different offsets POST FIX ======== post-1-root VS post-2-root: OK same files, same order, same offsets post-1-nonroot VS post-2-nonroot: OK same files, same order, same offsets post-1-nonroot-large VS post-2-nonroot-large: OK same files, same order, same offsets REGRESSION? =========== pre-1-root VS post-1-root: OK same files, same order, same offsets pre-1-nonroot VS post-1-nonroot: OK same files, same order, same offsets BugLink: https://bugzilla.samba.org/show_bug.cgi?id=13107 Signed-off-by: Aurelien Aptel Signed-off-by: Paulo Alcantara Reviewed-by: Ronnie Sahlberg Signed-off-by: Steve French CC: Stable --- fs/cifs/smb2ops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index d954ce36b473..89985a0a6819 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -1477,7 +1477,7 @@ smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon, } srch_inf->entries_in_buffer = 0; - srch_inf->index_of_last_entry = 0; + srch_inf->index_of_last_entry = 2; rc = SMB2_query_directory(xid, tcon, fid->persistent_fid, fid->volatile_fid, 0, srch_inf); From ddf83afb9f60ee58cdec30bb615eff65d00ba05e Mon Sep 17 00:00:00 2001 From: Ronnie Sahlberg Date: Thu, 30 Aug 2018 10:12:59 +1000 Subject: [PATCH 1538/1762] cifs: add a warning if we try to to dequeue a deleted mid cifs_delete_mid() is called once we are finished handling a mid and we expect no more work done on this mid. Needed to fix recent commit: commit 730928c8f4be88e9d6a027a16b1e8fa9c59fc077 ("cifs: update smb2_queryfs() to use compounding") Add a warning if someone tries to dequeue a mid that has already been flagged to be deleted. Also change list_del() to list_del_init() so that if we have similar bugs resurface in the future we will not oops. Signed-off-by: Ronnie Sahlberg Signed-off-by: Steve French Reviewed-by: Pavel Shilovsky --- fs/cifs/cifsglob.h | 1 + fs/cifs/connect.c | 10 +++++++++- fs/cifs/transport.c | 3 ++- 3 files changed, 12 insertions(+), 2 deletions(-) diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 0c9ab62c3df4..9dcaed031843 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -1553,6 +1553,7 @@ static inline void free_dfs_info_array(struct dfs_info3_param *param, /* Flags */ #define MID_WAIT_CANCELLED 1 /* Cancelled while waiting for response */ +#define MID_DELETED 2 /* Mid has been dequeued/deleted */ /* Types of response buffer returned from SendReceive2 */ #define CIFS_NO_BUFFER 0 /* Response buffer not returned */ diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 7aa08dba4719..e9d64c92b8da 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -659,7 +659,15 @@ dequeue_mid(struct mid_q_entry *mid, bool malformed) mid->mid_state = MID_RESPONSE_RECEIVED; else mid->mid_state = MID_RESPONSE_MALFORMED; - list_del_init(&mid->qhead); + /* + * Trying to handle/dequeue a mid after the send_recv() + * function has finished processing it is a bug. + */ + if (mid->mid_flags & MID_DELETED) + printk_once(KERN_WARNING + "trying to dequeue a deleted mid\n"); + else + list_del_init(&mid->qhead); spin_unlock(&GlobalMid_Lock); } diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 78f96fa3d7d9..9cc9a127749e 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -142,7 +142,8 @@ void cifs_delete_mid(struct mid_q_entry *mid) { spin_lock(&GlobalMid_Lock); - list_del(&mid->qhead); + list_del_init(&mid->qhead); + mid->mid_flags |= MID_DELETED; spin_unlock(&GlobalMid_Lock); DeleteMidQEntry(mid); From 4e34feb5e96328df6a362c88098502b07c1b1e69 Mon Sep 17 00:00:00 2001 From: Ronnie Sahlberg Date: Thu, 30 Aug 2018 10:13:00 +1000 Subject: [PATCH 1539/1762] cifs: only wake the thread for the very last PDU in a compound For compounded PDUs we whould only wake the waiting thread for the very last PDU of the compound. We do this so that we are guaranteed that the demultiplex_thread will not process or access any of those MIDs any more once the send/recv thread starts processing. Else there is a race where at the end of the send/recv processing we will try to delete all the mids of the compound. If the multiplex thread still has other mids to process at this point for this compound this can lead to an oops. Needed to fix recent commit: commit 730928c8f4be88e9d6a027a16b1e8fa9c59fc077 ("cifs: update smb2_queryfs() to use compounding") Signed-off-by: Ronnie Sahlberg Signed-off-by: Steve French Reviewed-by: Pavel Shilovsky --- fs/cifs/transport.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 9cc9a127749e..b48f43963da6 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -773,6 +773,11 @@ cifs_setup_request(struct cifs_ses *ses, struct smb_rqst *rqst) return mid; } +static void +cifs_noop_callback(struct mid_q_entry *mid) +{ +} + int compound_send_recv(const unsigned int xid, struct cifs_ses *ses, const int flags, const int num_rqst, struct smb_rqst *rqst, @@ -827,8 +832,13 @@ compound_send_recv(const unsigned int xid, struct cifs_ses *ses, } midQ[i]->mid_state = MID_REQUEST_SUBMITTED; + /* + * We don't invoke the callback compounds unless it is the last + * request. + */ + if (i < num_rqst - 1) + midQ[i]->callback = cifs_noop_callback; } - cifs_in_send_inc(ses->server); rc = smb_send_rqst(ses->server, num_rqst, rqst, flags); cifs_in_send_dec(ses->server); @@ -909,6 +919,12 @@ compound_send_recv(const unsigned int xid, struct cifs_ses *ses, midQ[i]->resp_buf = NULL; } out: + /* + * This will dequeue all mids. After this it is important that the + * demultiplex_thread will not process any of these mids any futher. + * This is prevented above by using a noop callback that will not + * wake this thread except for the very last PDU. + */ for (i = 0; i < num_rqst; i++) cifs_delete_mid(midQ[i]); add_credits(ses->server, credits, optype); From 7af929d6d05ba5564139718e30d5bc96bdbc716a Mon Sep 17 00:00:00 2001 From: Steve French Date: Tue, 2 Oct 2018 18:54:09 -0500 Subject: [PATCH 1540/1762] smb3: fix lease break problem introduced by compounding Fixes problem (discovered by Aurelien) introduced by recent commit: commit b24df3e30cbf48255db866720fb71f14bf9d2f39 ("cifs: update receive_encrypted_standard to handle compounded responses") which broke the ability to respond to some lease breaks (lease breaks being ignored is a problem since can block server response for duration of the lease break timeout). Signed-off-by: Steve French Reviewed-by: Ronnie Sahlberg Reviewed-by: Pavel Shilovsky --- fs/cifs/connect.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index e9d64c92b8da..52d71b64c0c6 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -946,8 +946,7 @@ next_pdu: } else { mids[0] = server->ops->find_mid(server, buf); bufs[0] = buf; - if (mids[0]) - num_mids = 1; + num_mids = 1; if (!mids[0] || !mids[0]->receive) length = standard_receive3(server, mids[0]); From 45ec318578c0c22a11f5b9927d064418e1ab1905 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Tue, 2 Oct 2018 16:52:03 -0700 Subject: [PATCH 1541/1762] net: systemport: Fix wake-up interrupt race during resume The AON_PM_L2 is normally used to trigger and identify the source of a wake-up event. Since the RX_SYS clock is no longer turned off, we also have an interrupt being sent to the SYSTEMPORT INTRL_2_0 controller, and that interrupt remains active up until the magic packet detector is disabled which happens much later during the driver resumption. The race happens if we have a CPU that is entering the SYSTEMPORT INTRL2_0 handler during resume, and another CPU has managed to clear the wake-up interrupt during bcm_sysport_resume_from_wol(). In that case, we have the first CPU stuck in the interrupt handler with an interrupt cause that has been cleared under its feet, and so we keep returning IRQ_NONE and we never make any progress. This was not a problem before because we would always turn off the RX_SYS clock during WoL, so the SYSTEMPORT INTRL2_0 would also be turned off as well, thus not latching the interrupt. The fix is to make sure we do not enable either the MPD or BRCM_TAG_MATCH interrupts since those are redundant with what the AON_PM_L2 interrupt controller already processes and they would cause such a race to occur. Fixes: bb9051a2b230 ("net: systemport: Add support for WAKE_FILTER") Fixes: 83e82f4c706b ("net: systemport: add Wake-on-LAN support") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bcmsysport.c | 28 +++++++++------------- 1 file changed, 11 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c index 147045757b10..c57238fce863 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -1069,9 +1069,6 @@ static void bcm_sysport_resume_from_wol(struct bcm_sysport_priv *priv) { u32 reg; - /* Stop monitoring MPD interrupt */ - intrl2_0_mask_set(priv, INTRL2_0_MPD | INTRL2_0_BRCM_MATCH_TAG); - /* Disable RXCHK, active filters and Broadcom tag matching */ reg = rxchk_readl(priv, RXCHK_CONTROL); reg &= ~(RXCHK_BRCM_TAG_MATCH_MASK << @@ -1081,6 +1078,17 @@ static void bcm_sysport_resume_from_wol(struct bcm_sysport_priv *priv) /* Clear the MagicPacket detection logic */ mpd_enable_set(priv, false); + reg = intrl2_0_readl(priv, INTRL2_CPU_STATUS); + if (reg & INTRL2_0_MPD) + netdev_info(priv->netdev, "Wake-on-LAN (MPD) interrupt!\n"); + + if (reg & INTRL2_0_BRCM_MATCH_TAG) { + reg = rxchk_readl(priv, RXCHK_BRCM_TAG_MATCH_STATUS) & + RXCHK_BRCM_TAG_MATCH_MASK; + netdev_info(priv->netdev, + "Wake-on-LAN (filters 0x%02x) interrupt!\n", reg); + } + netif_dbg(priv, wol, priv->netdev, "resumed from WOL\n"); } @@ -1105,7 +1113,6 @@ static irqreturn_t bcm_sysport_rx_isr(int irq, void *dev_id) struct bcm_sysport_priv *priv = netdev_priv(dev); struct bcm_sysport_tx_ring *txr; unsigned int ring, ring_bit; - u32 reg; priv->irq0_stat = intrl2_0_readl(priv, INTRL2_CPU_STATUS) & ~intrl2_0_readl(priv, INTRL2_CPU_MASK_STATUS); @@ -1131,16 +1138,6 @@ static irqreturn_t bcm_sysport_rx_isr(int irq, void *dev_id) if (priv->irq0_stat & INTRL2_0_TX_RING_FULL) bcm_sysport_tx_reclaim_all(priv); - if (priv->irq0_stat & INTRL2_0_MPD) - netdev_info(priv->netdev, "Wake-on-LAN (MPD) interrupt!\n"); - - if (priv->irq0_stat & INTRL2_0_BRCM_MATCH_TAG) { - reg = rxchk_readl(priv, RXCHK_BRCM_TAG_MATCH_STATUS) & - RXCHK_BRCM_TAG_MATCH_MASK; - netdev_info(priv->netdev, - "Wake-on-LAN (filters 0x%02x) interrupt!\n", reg); - } - if (!priv->is_lite) goto out; @@ -2641,9 +2638,6 @@ static int bcm_sysport_suspend_to_wol(struct bcm_sysport_priv *priv) /* UniMAC receive needs to be turned on */ umac_enable_set(priv, CMD_RX_EN, 1); - /* Enable the interrupt wake-up source */ - intrl2_0_mask_clear(priv, INTRL2_0_MPD | INTRL2_0_BRCM_MATCH_TAG); - netif_dbg(priv, wol, ndev, "entered WOL mode\n"); return 0; From a07f388e2cde2be74b263f85df6f672fea0305a1 Mon Sep 17 00:00:00 2001 From: Sean Tranchetti Date: Tue, 2 Oct 2018 18:52:01 -0600 Subject: [PATCH 1542/1762] net: qualcomm: rmnet: Skip processing loopback packets RMNET RX handler was processing invalid packets that were originally sent on the real device and were looped back via dev_loopback_xmit(). This was detected using syzkaller. Fixes: ceed73a2cf4a ("drivers: net: ethernet: qualcomm: rmnet: Initial implementation") Signed-off-by: Sean Tranchetti Signed-off-by: Subash Abhinov Kasiviswanathan Signed-off-by: David S. Miller --- drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c index 7fd86d40a337..6908b26feb9e 100644 --- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c +++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c @@ -189,6 +189,9 @@ rx_handler_result_t rmnet_rx_handler(struct sk_buff **pskb) if (!skb) goto done; + if (skb->pkt_type == PACKET_LOOPBACK) + return RX_HANDLER_PASS; + dev = skb->dev; port = rmnet_get_port(dev); From 6392ff3c8e4c23d0a09b0ae9f94feb3effed490b Mon Sep 17 00:00:00 2001 From: Subash Abhinov Kasiviswanathan Date: Tue, 2 Oct 2018 18:52:02 -0600 Subject: [PATCH 1543/1762] net: qualcomm: rmnet: Fix incorrect allocation flag in transmit The incoming skb needs to be reallocated in case the headroom is not sufficient to add the MAP header. This allocation needs to be atomic otherwise it results in the following splat [32805.801456] BUG: sleeping function called from invalid context [32805.841141] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP [32805.904773] task: ffffffd7c5f62280 task.stack: ffffff80464a8000 [32805.910851] pc : ___might_sleep+0x180/0x188 [32805.915143] lr : ___might_sleep+0x180/0x188 [32806.131520] Call trace: [32806.134041] ___might_sleep+0x180/0x188 [32806.137980] __might_sleep+0x50/0x84 [32806.141653] __kmalloc_track_caller+0x80/0x3bc [32806.146215] __kmalloc_reserve+0x3c/0x88 [32806.150241] pskb_expand_head+0x74/0x288 [32806.154269] rmnet_egress_handler+0xb0/0x1d8 [32806.162239] rmnet_vnd_start_xmit+0xc8/0x13c [32806.166627] dev_hard_start_xmit+0x148/0x280 [32806.181181] sch_direct_xmit+0xa4/0x198 [32806.185125] __qdisc_run+0x1f8/0x310 [32806.188803] net_tx_action+0x23c/0x26c [32806.192655] __do_softirq+0x220/0x408 [32806.196420] do_softirq+0x4c/0x70 Fixes: ceed73a2cf4a ("drivers: net: ethernet: qualcomm: rmnet: Initial implementation") Signed-off-by: Subash Abhinov Kasiviswanathan Signed-off-by: David S. Miller --- drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c index 6908b26feb9e..1f98d65473cf 100644 --- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c +++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c @@ -147,7 +147,7 @@ static int rmnet_map_egress_handler(struct sk_buff *skb, } if (skb_headroom(skb) < required_headroom) { - if (pskb_expand_head(skb, required_headroom, 0, GFP_KERNEL)) + if (pskb_expand_head(skb, required_headroom, 0, GFP_ATOMIC)) return -ENOMEM; } From ec405641e2b73160e26ef17580d0cf28565d146c Mon Sep 17 00:00:00 2001 From: Subash Abhinov Kasiviswanathan Date: Tue, 2 Oct 2018 18:52:03 -0600 Subject: [PATCH 1544/1762] net: qualcomm: rmnet: Fix incorrect allocation flag in receive path The incoming skb needs to be reallocated in case the headroom is not sufficient to adjust the ethernet header. This allocation needs to be atomic otherwise it results in this splat [<600601bb>] ___might_sleep+0x185/0x1a3 [<603f6314>] ? _raw_spin_unlock_irqrestore+0x0/0x27 [<60069bb0>] ? __wake_up_common_lock+0x95/0xd1 [<600602b0>] __might_sleep+0xd7/0xe2 [<60065598>] ? enqueue_task_fair+0x112/0x209 [<600eea13>] __kmalloc_track_caller+0x5d/0x124 [<600ee9b6>] ? __kmalloc_track_caller+0x0/0x124 [<602696d5>] __kmalloc_reserve.isra.34+0x30/0x7e [<603f629b>] ? _raw_spin_lock_irqsave+0x0/0x3d [<6026b744>] pskb_expand_head+0xbf/0x310 [<6025ca6a>] rmnet_rx_handler+0x7e/0x16b [<6025c9ec>] ? rmnet_rx_handler+0x0/0x16b [<6027ad0c>] __netif_receive_skb_core+0x301/0x96f [<60033c17>] ? set_signals+0x0/0x40 [<6027bbcb>] __netif_receive_skb+0x24/0x8e Fixes: 74692caf1b0b ("net: qualcomm: rmnet: Process packets over ethernet") Signed-off-by: Sean Tranchetti Signed-off-by: Subash Abhinov Kasiviswanathan Signed-off-by: David S. Miller --- drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c index 1f98d65473cf..11167abe5934 100644 --- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c +++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c @@ -113,7 +113,7 @@ rmnet_map_ingress_handler(struct sk_buff *skb, struct sk_buff *skbn; if (skb->dev->type == ARPHRD_ETHER) { - if (pskb_expand_head(skb, ETH_HLEN, 0, GFP_KERNEL)) { + if (pskb_expand_head(skb, ETH_HLEN, 0, GFP_ATOMIC)) { kfree_skb(skb); return; } From 64199fc0a46ba211362472f7f942f900af9492fd Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 30 Sep 2018 11:33:39 -0700 Subject: [PATCH 1545/1762] ipv4: fix use-after-free in ip_cmsg_recv_dstaddr() Caching ip_hdr(skb) before a call to pskb_may_pull() is buggy, do not do it. Fixes: 2efd4fca703a ("ip: in cmsg IP(V6)_ORIGDSTADDR call pskb_may_pull") Signed-off-by: Eric Dumazet Cc: Willem de Bruijn Reported-by: syzbot Acked-by: Willem de Bruijn Signed-off-by: David S. Miller --- net/ipv4/ip_sockglue.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index c0fe5ad996f2..26c36cccabdc 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -149,7 +149,6 @@ static void ip_cmsg_recv_security(struct msghdr *msg, struct sk_buff *skb) static void ip_cmsg_recv_dstaddr(struct msghdr *msg, struct sk_buff *skb) { struct sockaddr_in sin; - const struct iphdr *iph = ip_hdr(skb); __be16 *ports; int end; @@ -164,7 +163,7 @@ static void ip_cmsg_recv_dstaddr(struct msghdr *msg, struct sk_buff *skb) ports = (__be16 *)skb_transport_header(skb); sin.sin_family = AF_INET; - sin.sin_addr.s_addr = iph->daddr; + sin.sin_addr.s_addr = ip_hdr(skb)->daddr; sin.sin_port = ports[1]; memset(sin.sin_zero, 0, sizeof(sin.sin_zero)); From 9003b369499b3320d3f16145145b729fb6ff3bd4 Mon Sep 17 00:00:00 2001 From: "Alex Xu (Hello71)" Date: Sun, 30 Sep 2018 11:06:39 -0400 Subject: [PATCH 1546/1762] r8169: always autoneg on resume This affects at least versions 25 and 33, so assume all cards are broken and just renegotiate by default. Fixes: 10bc6a6042c9 ("r8169: fix autoneg issue on resume with RTL8168E") Signed-off-by: Alex Xu (Hello71) Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index a94b874982dc..9a5e2969df61 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -4072,13 +4072,12 @@ static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp) genphy_soft_reset(dev->phydev); - /* It was reported that chip version 33 ends up with 10MBit/Half on a + /* It was reported that several chips end up with 10MBit/Half on a * 1GBit link after resuming from S3. For whatever reason the PHY on - * this chip doesn't properly start a renegotiation when soft-reset. + * these chips doesn't properly start a renegotiation when soft-reset. * Explicitly requesting a renegotiation fixes this. */ - if (tp->mac_version == RTL_GIGA_MAC_VER_33 && - dev->phydev->autoneg == AUTONEG_ENABLE) + if (dev->phydev->autoneg == AUTONEG_ENABLE) phy_restart_aneg(dev->phydev); } From 4f166564014aba65ad6f15b612f6711fd0f117ee Mon Sep 17 00:00:00 2001 From: Andy Lutomirski Date: Tue, 2 Oct 2018 21:26:50 -0700 Subject: [PATCH 1547/1762] x86/vdso: Only enable vDSO retpolines when enabled and supported When I fixed the vDSO build to use inline retpolines, I messed up the Makefile logic and made it unconditional. It should have depended on CONFIG_RETPOLINE and on the availability of compiler support. This broke the build on some older compilers. Reported-by: nikola.ciprich@linuxbox.cz Signed-off-by: Andy Lutomirski Cc: Borislav Petkov Cc: David Woodhouse Cc: Linus Torvalds Cc: Matt Rickard Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: jason.vas.dias@gmail.com Cc: stable@vger.kernel.org Fixes: 2e549b2ee0e3 ("x86/vdso: Fix vDSO build if a retpoline is emitted") Link: http://lkml.kernel.org/r/08a1f29f2c238dd1f493945e702a521f8a5aa3ae.1538540801.git.luto@kernel.org Signed-off-by: Ingo Molnar --- arch/x86/entry/vdso/Makefile | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile index fa3f439f0a92..141d415a8c80 100644 --- a/arch/x86/entry/vdso/Makefile +++ b/arch/x86/entry/vdso/Makefile @@ -68,7 +68,13 @@ $(obj)/vdso-image-%.c: $(obj)/vdso%.so.dbg $(obj)/vdso%.so $(obj)/vdso2c FORCE CFL := $(PROFILING) -mcmodel=small -fPIC -O2 -fasynchronous-unwind-tables -m64 \ $(filter -g%,$(KBUILD_CFLAGS)) $(call cc-option, -fno-stack-protector) \ -fno-omit-frame-pointer -foptimize-sibling-calls \ - -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO $(RETPOLINE_VDSO_CFLAGS) + -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO + +ifdef CONFIG_RETPOLINE +ifneq ($(RETPOLINE_VDSO_CFLAGS),) + CFL += $(RETPOLINE_VDSO_CFLAGS) +endif +endif $(vobjs): KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS) $(RETPOLINE_CFLAGS),$(KBUILD_CFLAGS)) $(CFL) @@ -138,7 +144,13 @@ KBUILD_CFLAGS_32 += $(call cc-option, -fno-stack-protector) KBUILD_CFLAGS_32 += $(call cc-option, -foptimize-sibling-calls) KBUILD_CFLAGS_32 += -fno-omit-frame-pointer KBUILD_CFLAGS_32 += -DDISABLE_BRANCH_PROFILING -KBUILD_CFLAGS_32 += $(RETPOLINE_VDSO_CFLAGS) + +ifdef CONFIG_RETPOLINE +ifneq ($(RETPOLINE_VDSO_CFLAGS),) + KBUILD_CFLAGS_32 += $(RETPOLINE_VDSO_CFLAGS) +endif +endif + $(obj)/vdso32.so.dbg: KBUILD_CFLAGS = $(KBUILD_CFLAGS_32) $(obj)/vdso32.so.dbg: FORCE \ From 88296bd42b4e9d24e138a68b337c235b5cac89a7 Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Tue, 2 Oct 2018 15:45:11 -0700 Subject: [PATCH 1548/1762] x86/cpu/amd: Remove unnecessary parentheses Clang warns when multiple pairs of parentheses are used for a single conditional statement. arch/x86/kernel/cpu/amd.c:925:14: warning: equality comparison with extraneous parentheses [-Wparentheses-equality] if ((c->x86 == 6)) { ~~~~~~~^~~~ arch/x86/kernel/cpu/amd.c:925:14: note: remove extraneous parentheses around the comparison to silence this warning if ((c->x86 == 6)) { ~ ^ ~ arch/x86/kernel/cpu/amd.c:925:14: note: use '=' to turn this equality comparison into an assignment if ((c->x86 == 6)) { ^~ = 1 warning generated. Signed-off-by: Nathan Chancellor Cc: Borislav Petkov Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20181002224511.14929-1-natechancellor@gmail.com Link: https://github.com/ClangBuiltLinux/linux/issues/187 Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/amd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 22ab408177b2..eeea634bee0a 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -922,7 +922,7 @@ static void init_amd(struct cpuinfo_x86 *c) static unsigned int amd_size_cache(struct cpuinfo_x86 *c, unsigned int size) { /* AMD errata T13 (order #21922) */ - if ((c->x86 == 6)) { + if (c->x86 == 6) { /* Duron Rev A0 */ if (c->x86_model == 3 && c->x86_stepping == 0) size = 64; From e4a02ed2aaf447fa849e3254bfdb3b9b01e1e520 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 2 Oct 2018 14:48:49 -0700 Subject: [PATCH 1549/1762] locking/ww_mutex: Fix runtime warning in the WW mutex selftest If CONFIG_WW_MUTEX_SELFTEST=y is enabled, booting an image in an arm64 virtual machine results in the following traceback if 8 CPUs are enabled: DEBUG_LOCKS_WARN_ON(__owner_task(owner) != current) WARNING: CPU: 2 PID: 537 at kernel/locking/mutex.c:1033 __mutex_unlock_slowpath+0x1a8/0x2e0 ... Call trace: __mutex_unlock_slowpath() ww_mutex_unlock() test_cycle_work() process_one_work() worker_thread() kthread() ret_from_fork() If requesting b_mutex fails with -EDEADLK, the error variable is reassigned to the return value from calling ww_mutex_lock on a_mutex again. If this call fails, a_mutex is not locked. It is, however, unconditionally unlocked subsequently, causing the reported warning. Fix the problem by using two error variables. With this change, the selftest still fails as follows: cyclic deadlock not resolved, ret[7/8] = -35 However, the traceback is gone. Signed-off-by: Guenter Roeck Cc: Chris Wilson Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Will Deacon Fixes: d1b42b800e5d0 ("locking/ww_mutex: Add kselftests for resolving ww_mutex cyclic deadlocks") Link: http://lkml.kernel.org/r/1538516929-9734-1-git-send-email-linux@roeck-us.net Signed-off-by: Ingo Molnar --- kernel/locking/test-ww_mutex.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/kernel/locking/test-ww_mutex.c b/kernel/locking/test-ww_mutex.c index 0be047dbd897..65a3b7e55b9f 100644 --- a/kernel/locking/test-ww_mutex.c +++ b/kernel/locking/test-ww_mutex.c @@ -260,7 +260,7 @@ static void test_cycle_work(struct work_struct *work) { struct test_cycle *cycle = container_of(work, typeof(*cycle), work); struct ww_acquire_ctx ctx; - int err; + int err, erra = 0; ww_acquire_init(&ctx, &ww_class); ww_mutex_lock(&cycle->a_mutex, &ctx); @@ -270,17 +270,19 @@ static void test_cycle_work(struct work_struct *work) err = ww_mutex_lock(cycle->b_mutex, &ctx); if (err == -EDEADLK) { + err = 0; ww_mutex_unlock(&cycle->a_mutex); ww_mutex_lock_slow(cycle->b_mutex, &ctx); - err = ww_mutex_lock(&cycle->a_mutex, &ctx); + erra = ww_mutex_lock(&cycle->a_mutex, &ctx); } if (!err) ww_mutex_unlock(cycle->b_mutex); - ww_mutex_unlock(&cycle->a_mutex); + if (!erra) + ww_mutex_unlock(&cycle->a_mutex); ww_acquire_fini(&ctx); - cycle->result = err; + cycle->result = err ?: erra; } static int __test_cycle(unsigned int nthreads) From ad608fbcf166fec809e402d548761768f602702c Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Tue, 11 Sep 2018 05:32:37 -0400 Subject: [PATCH 1550/1762] media: v4l: event: Prevent freeing event subscriptions while accessed The event subscriptions are added to the subscribed event list while holding a spinlock, but that lock is subsequently released while still accessing the subscription object. This makes it possible to unsubscribe the event --- and freeing the subscription object's memory --- while the subscription object is simultaneously accessed. Prevent this by adding a mutex to serialise the event subscription and unsubscription. This also gives a guarantee to the callback ops that the add op has returned before the del op is called. This change also results in making the elems field less special: subscriptions are only added to the event list once they are fully initialised. Signed-off-by: Sakari Ailus Reviewed-by: Hans Verkuil Reviewed-by: Laurent Pinchart Cc: stable@vger.kernel.org # for 4.14 and up Fixes: c3b5b0241f62 ("V4L/DVB: V4L: Events: Add backend") Signed-off-by: Mauro Carvalho Chehab --- drivers/media/v4l2-core/v4l2-event.c | 38 +++++++++++++++------------- drivers/media/v4l2-core/v4l2-fh.c | 2 ++ include/media/v4l2-fh.h | 4 +++ 3 files changed, 26 insertions(+), 18 deletions(-) diff --git a/drivers/media/v4l2-core/v4l2-event.c b/drivers/media/v4l2-core/v4l2-event.c index 127fe6eb91d9..a3ef1f50a4b3 100644 --- a/drivers/media/v4l2-core/v4l2-event.c +++ b/drivers/media/v4l2-core/v4l2-event.c @@ -115,14 +115,6 @@ static void __v4l2_event_queue_fh(struct v4l2_fh *fh, const struct v4l2_event *e if (sev == NULL) return; - /* - * If the event has been added to the fh->subscribed list, but its - * add op has not completed yet elems will be 0, treat this as - * not being subscribed. - */ - if (!sev->elems) - return; - /* Increase event sequence number on fh. */ fh->sequence++; @@ -208,6 +200,7 @@ int v4l2_event_subscribe(struct v4l2_fh *fh, struct v4l2_subscribed_event *sev, *found_ev; unsigned long flags; unsigned i; + int ret = 0; if (sub->type == V4L2_EVENT_ALL) return -EINVAL; @@ -225,31 +218,36 @@ int v4l2_event_subscribe(struct v4l2_fh *fh, sev->flags = sub->flags; sev->fh = fh; sev->ops = ops; + sev->elems = elems; + + mutex_lock(&fh->subscribe_lock); spin_lock_irqsave(&fh->vdev->fh_lock, flags); found_ev = v4l2_event_subscribed(fh, sub->type, sub->id); - if (!found_ev) - list_add(&sev->list, &fh->subscribed); spin_unlock_irqrestore(&fh->vdev->fh_lock, flags); if (found_ev) { + /* Already listening */ kvfree(sev); - return 0; /* Already listening */ + goto out_unlock; } if (sev->ops && sev->ops->add) { - int ret = sev->ops->add(sev, elems); + ret = sev->ops->add(sev, elems); if (ret) { - sev->ops = NULL; - v4l2_event_unsubscribe(fh, sub); - return ret; + kvfree(sev); + goto out_unlock; } } - /* Mark as ready for use */ - sev->elems = elems; + spin_lock_irqsave(&fh->vdev->fh_lock, flags); + list_add(&sev->list, &fh->subscribed); + spin_unlock_irqrestore(&fh->vdev->fh_lock, flags); - return 0; +out_unlock: + mutex_unlock(&fh->subscribe_lock); + + return ret; } EXPORT_SYMBOL_GPL(v4l2_event_subscribe); @@ -288,6 +286,8 @@ int v4l2_event_unsubscribe(struct v4l2_fh *fh, return 0; } + mutex_lock(&fh->subscribe_lock); + spin_lock_irqsave(&fh->vdev->fh_lock, flags); sev = v4l2_event_subscribed(fh, sub->type, sub->id); @@ -305,6 +305,8 @@ int v4l2_event_unsubscribe(struct v4l2_fh *fh, if (sev && sev->ops && sev->ops->del) sev->ops->del(sev); + mutex_unlock(&fh->subscribe_lock); + kvfree(sev); return 0; diff --git a/drivers/media/v4l2-core/v4l2-fh.c b/drivers/media/v4l2-core/v4l2-fh.c index 3895999bf880..c91a7bd3ecfc 100644 --- a/drivers/media/v4l2-core/v4l2-fh.c +++ b/drivers/media/v4l2-core/v4l2-fh.c @@ -45,6 +45,7 @@ void v4l2_fh_init(struct v4l2_fh *fh, struct video_device *vdev) INIT_LIST_HEAD(&fh->available); INIT_LIST_HEAD(&fh->subscribed); fh->sequence = -1; + mutex_init(&fh->subscribe_lock); } EXPORT_SYMBOL_GPL(v4l2_fh_init); @@ -90,6 +91,7 @@ void v4l2_fh_exit(struct v4l2_fh *fh) return; v4l_disable_media_source(fh->vdev); v4l2_event_unsubscribe_all(fh); + mutex_destroy(&fh->subscribe_lock); fh->vdev = NULL; } EXPORT_SYMBOL_GPL(v4l2_fh_exit); diff --git a/include/media/v4l2-fh.h b/include/media/v4l2-fh.h index ea73fef8bdc0..8586cfb49828 100644 --- a/include/media/v4l2-fh.h +++ b/include/media/v4l2-fh.h @@ -38,10 +38,13 @@ struct v4l2_ctrl_handler; * @prio: priority of the file handler, as defined by &enum v4l2_priority * * @wait: event' s wait queue + * @subscribe_lock: serialise changes to the subscribed list; guarantee that + * the add and del event callbacks are orderly called * @subscribed: list of subscribed events * @available: list of events waiting to be dequeued * @navailable: number of available events at @available list * @sequence: event sequence number + * * @m2m_ctx: pointer to &struct v4l2_m2m_ctx */ struct v4l2_fh { @@ -52,6 +55,7 @@ struct v4l2_fh { /* Events */ wait_queue_head_t wait; + struct mutex subscribe_lock; struct list_head subscribed; struct list_head available; unsigned int navailable; From 4c9613ce556fdeb671e779668b627ea3a2b61728 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 3 Oct 2018 09:24:22 +0100 Subject: [PATCH 1551/1762] drm/i915: Handle incomplete Z_FINISH for compressed error states The final call to zlib_deflate(Z_FINISH) may require more output space to be allocated and so needs to re-invoked. Failure to do so in the current code leads to incomplete zlib streams (albeit intact due to the use of Z_SYNC_FLUSH) resulting in the occasional short object capture. v2: Check against overrunning our pre-allocated page array v3: Drop Z_SYNC_FLUSH entirely Testcase: igt/i915-error-capture.js Fixes: 0a97015d45ee ("drm/i915: Compress GPU objects in error state") Signed-off-by: Chris Wilson Cc: Joonas Lahtinen Cc: # v4.10+ Cc: Tvrtko Ursulin Reviewed-by: Tvrtko Ursulin Link: https://patchwork.freedesktop.org/patch/msgid/20181003082422.23214-1-chris@chris-wilson.co.uk (cherry picked from commit 83bc0f5b432f60394466deef16fc753e27371d0b) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/i915_gpu_error.c | 88 +++++++++++++++++++-------- drivers/gpu/drm/i915/i915_gpu_error.h | 1 + 2 files changed, 64 insertions(+), 25 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index f7f2aa71d8d9..a262a64f5625 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -232,6 +232,20 @@ static bool compress_init(struct compress *c) return true; } +static void *compress_next_page(struct drm_i915_error_object *dst) +{ + unsigned long page; + + if (dst->page_count >= dst->num_pages) + return ERR_PTR(-ENOSPC); + + page = __get_free_page(GFP_ATOMIC | __GFP_NOWARN); + if (!page) + return ERR_PTR(-ENOMEM); + + return dst->pages[dst->page_count++] = (void *)page; +} + static int compress_page(struct compress *c, void *src, struct drm_i915_error_object *dst) @@ -245,19 +259,14 @@ static int compress_page(struct compress *c, do { if (zstream->avail_out == 0) { - unsigned long page; + zstream->next_out = compress_next_page(dst); + if (IS_ERR(zstream->next_out)) + return PTR_ERR(zstream->next_out); - page = __get_free_page(GFP_ATOMIC | __GFP_NOWARN); - if (!page) - return -ENOMEM; - - dst->pages[dst->page_count++] = (void *)page; - - zstream->next_out = (void *)page; zstream->avail_out = PAGE_SIZE; } - if (zlib_deflate(zstream, Z_SYNC_FLUSH) != Z_OK) + if (zlib_deflate(zstream, Z_NO_FLUSH) != Z_OK) return -EIO; } while (zstream->avail_in); @@ -268,19 +277,42 @@ static int compress_page(struct compress *c, return 0; } +static int compress_flush(struct compress *c, + struct drm_i915_error_object *dst) +{ + struct z_stream_s *zstream = &c->zstream; + + do { + switch (zlib_deflate(zstream, Z_FINISH)) { + case Z_OK: /* more space requested */ + zstream->next_out = compress_next_page(dst); + if (IS_ERR(zstream->next_out)) + return PTR_ERR(zstream->next_out); + + zstream->avail_out = PAGE_SIZE; + break; + + case Z_STREAM_END: + goto end; + + default: /* any error */ + return -EIO; + } + } while (1); + +end: + memset(zstream->next_out, 0, zstream->avail_out); + dst->unused = zstream->avail_out; + return 0; +} + static void compress_fini(struct compress *c, struct drm_i915_error_object *dst) { struct z_stream_s *zstream = &c->zstream; - if (dst) { - zlib_deflate(zstream, Z_FINISH); - dst->unused = zstream->avail_out; - } - zlib_deflateEnd(zstream); kfree(zstream->workspace); - if (c->tmp) free_page((unsigned long)c->tmp); } @@ -319,6 +351,12 @@ static int compress_page(struct compress *c, return 0; } +static int compress_flush(struct compress *c, + struct drm_i915_error_object *dst) +{ + return 0; +} + static void compress_fini(struct compress *c, struct drm_i915_error_object *dst) { @@ -917,6 +955,7 @@ i915_error_object_create(struct drm_i915_private *i915, unsigned long num_pages; struct sgt_iter iter; dma_addr_t dma; + int ret; if (!vma) return NULL; @@ -930,6 +969,7 @@ i915_error_object_create(struct drm_i915_private *i915, dst->gtt_offset = vma->node.start; dst->gtt_size = vma->node.size; + dst->num_pages = num_pages; dst->page_count = 0; dst->unused = 0; @@ -938,28 +978,26 @@ i915_error_object_create(struct drm_i915_private *i915, return NULL; } + ret = -EINVAL; for_each_sgt_dma(dma, iter, vma->pages) { void __iomem *s; - int ret; ggtt->vm.insert_page(&ggtt->vm, dma, slot, I915_CACHE_NONE, 0); s = io_mapping_map_atomic_wc(&ggtt->iomap, slot); ret = compress_page(&compress, (void __force *)s, dst); io_mapping_unmap_atomic(s); - if (ret) - goto unwind; + break; } - goto out; -unwind: - while (dst->page_count--) - free_page((unsigned long)dst->pages[dst->page_count]); - kfree(dst); - dst = NULL; + if (ret || compress_flush(&compress, dst)) { + while (dst->page_count--) + free_page((unsigned long)dst->pages[dst->page_count]); + kfree(dst); + dst = NULL; + } -out: compress_fini(&compress, dst); ggtt->vm.clear_range(&ggtt->vm, slot, PAGE_SIZE); return dst; diff --git a/drivers/gpu/drm/i915/i915_gpu_error.h b/drivers/gpu/drm/i915/i915_gpu_error.h index f893a4e8b783..8710fb18ed74 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.h +++ b/drivers/gpu/drm/i915/i915_gpu_error.h @@ -135,6 +135,7 @@ struct i915_gpu_state { struct drm_i915_error_object { u64 gtt_offset; u64 gtt_size; + int num_pages; int page_count; int unused; u32 *pages[0]; From 2cc543f5cd6deda27ef463686fa08c16c8c0990b Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Wed, 3 Oct 2018 12:45:56 +0200 Subject: [PATCH 1552/1762] sctp: fix fall-through annotation Replace "fallthru" with a proper "fall through" annotation. This fix is part of the ongoing efforts to enabling -Wimplicit-fallthrough Signed-off-by: Gustavo A. R. Silva Signed-off-by: David S. Miller --- net/sctp/outqueue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c index d74d00b29942..42191ed9902b 100644 --- a/net/sctp/outqueue.c +++ b/net/sctp/outqueue.c @@ -1048,7 +1048,7 @@ static void sctp_outq_flush_data(struct sctp_flush_ctx *ctx, if (!ctx->packet || !ctx->packet->has_cookie_echo) return; - /* fallthru */ + /* fall through */ case SCTP_STATE_ESTABLISHED: case SCTP_STATE_SHUTDOWN_PENDING: case SCTP_STATE_SHUTDOWN_RECEIVED: From 4233cfe6ec4683497d7318f55ce7617e97f2e610 Mon Sep 17 00:00:00 2001 From: Song Liu Date: Wed, 3 Oct 2018 11:30:35 -0700 Subject: [PATCH 1553/1762] ixgbe: check return value of napi_complete_done() The NIC driver should only enable interrupts when napi_complete_done() returns true. This patch adds the check for ixgbe. Cc: stable@vger.kernel.org # 4.10+ Suggested-by: Eric Dumazet Signed-off-by: Song Liu Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index f27d73a7bf16..6cdd58d9d461 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -3196,11 +3196,13 @@ int ixgbe_poll(struct napi_struct *napi, int budget) return budget; /* all work done, exit the polling mode */ - napi_complete_done(napi, work_done); - if (adapter->rx_itr_setting & 1) - ixgbe_set_itr(q_vector); - if (!test_bit(__IXGBE_DOWN, &adapter->state)) - ixgbe_irq_enable_queues(adapter, BIT_ULL(q_vector->v_idx)); + if (likely(napi_complete_done(napi, work_done))) { + if (adapter->rx_itr_setting & 1) + ixgbe_set_itr(q_vector); + if (!test_bit(__IXGBE_DOWN, &adapter->state)) + ixgbe_irq_enable_queues(adapter, + BIT_ULL(q_vector->v_idx)); + } return min(work_done, budget - 1); } From 6579804c431712d56956a63b1a01509441cc6800 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Thu, 4 Oct 2018 14:51:11 +1000 Subject: [PATCH 1554/1762] KVM: PPC: Book3S HV: Avoid crash from THP collapse during radix page fault Commit 71d29f43b633 ("KVM: PPC: Book3S HV: Don't use compound_order to determine host mapping size", 2018-09-11) added a call to __find_linux_pte() and a dereference of the returned PTE pointer to the radix page fault path in the common case where the page is normal system memory. Previously, __find_linux_pte() was only called for mappings to physical addresses which don't have a page struct (e.g. memory-mapped I/O) or where the page struct is marked as reserved memory. This exposes us to the possibility that the returned PTE pointer could be NULL, for example in the case of a concurrent THP collapse operation. Dereferencing the returned NULL pointer causes a host crash. To fix this, we check for NULL, and if it is NULL, we retry the operation by returning to the guest, with the expectation that it will generate the same page fault again (unless of course it has been fixed up by another CPU in the meantime). Fixes: 71d29f43b633 ("KVM: PPC: Book3S HV: Don't use compound_order to determine host mapping size") Signed-off-by: Paul Mackerras --- arch/powerpc/kvm/book3s_64_mmu_radix.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index 933c574e1cf7..998f8d089ac7 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -646,6 +646,16 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, */ local_irq_disable(); ptep = __find_linux_pte(vcpu->arch.pgdir, hva, NULL, &shift); + /* + * If the PTE disappeared temporarily due to a THP + * collapse, just return and let the guest try again. + */ + if (!ptep) { + local_irq_enable(); + if (page) + put_page(page); + return RESUME_GUEST; + } pte = *ptep; local_irq_enable(); From 02e425668f5c9deb42787d10001a3b605993ad15 Mon Sep 17 00:00:00 2001 From: Andy Lutomirski Date: Wed, 3 Oct 2018 16:23:49 -0700 Subject: [PATCH 1555/1762] x86/vdso: Fix vDSO syscall fallback asm constraint regression When I added the missing memory outputs, I failed to update the index of the first argument (ebx) on 32-bit builds, which broke the fallbacks. Somehow I must have screwed up my testing or gotten lucky. Add another test to cover gettimeofday() as well. Signed-off-by: Andy Lutomirski Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: stable@vger.kernel.org Fixes: 715bd9d12f84 ("x86/vdso: Fix asm constraints on vDSO syscall fallbacks") Link: http://lkml.kernel.org/r/21bd45ab04b6d838278fa5bebfa9163eceffa13c.1538608971.git.luto@kernel.org Signed-off-by: Ingo Molnar --- arch/x86/entry/vdso/vclock_gettime.c | 8 +-- tools/testing/selftests/x86/test_vdso.c | 73 +++++++++++++++++++++++++ 2 files changed, 77 insertions(+), 4 deletions(-) diff --git a/arch/x86/entry/vdso/vclock_gettime.c b/arch/x86/entry/vdso/vclock_gettime.c index 134e2d2e8add..e48ca3afa091 100644 --- a/arch/x86/entry/vdso/vclock_gettime.c +++ b/arch/x86/entry/vdso/vclock_gettime.c @@ -68,11 +68,11 @@ notrace static long vdso_fallback_gettime(long clock, struct timespec *ts) asm ( "mov %%ebx, %%edx \n" - "mov %2, %%ebx \n" + "mov %[clock], %%ebx \n" "call __kernel_vsyscall \n" "mov %%edx, %%ebx \n" : "=a" (ret), "=m" (*ts) - : "0" (__NR_clock_gettime), "g" (clock), "c" (ts) + : "0" (__NR_clock_gettime), [clock] "g" (clock), "c" (ts) : "memory", "edx"); return ret; } @@ -83,11 +83,11 @@ notrace static long vdso_fallback_gtod(struct timeval *tv, struct timezone *tz) asm ( "mov %%ebx, %%edx \n" - "mov %2, %%ebx \n" + "mov %[tv], %%ebx \n" "call __kernel_vsyscall \n" "mov %%edx, %%ebx \n" : "=a" (ret), "=m" (*tv), "=m" (*tz) - : "0" (__NR_gettimeofday), "g" (tv), "c" (tz) + : "0" (__NR_gettimeofday), [tv] "g" (tv), "c" (tz) : "memory", "edx"); return ret; } diff --git a/tools/testing/selftests/x86/test_vdso.c b/tools/testing/selftests/x86/test_vdso.c index 49f7294fb382..35edd61d1663 100644 --- a/tools/testing/selftests/x86/test_vdso.c +++ b/tools/testing/selftests/x86/test_vdso.c @@ -36,6 +36,10 @@ typedef int (*vgettime_t)(clockid_t, struct timespec *); vgettime_t vdso_clock_gettime; +typedef long (*vgtod_t)(struct timeval *tv, struct timezone *tz); + +vgtod_t vdso_gettimeofday; + typedef long (*getcpu_t)(unsigned *, unsigned *, void *); getcpu_t vgetcpu; @@ -104,6 +108,11 @@ static void fill_function_pointers() vdso_clock_gettime = (vgettime_t)dlsym(vdso, "__vdso_clock_gettime"); if (!vdso_clock_gettime) printf("Warning: failed to find clock_gettime in vDSO\n"); + + vdso_gettimeofday = (vgtod_t)dlsym(vdso, "__vdso_gettimeofday"); + if (!vdso_gettimeofday) + printf("Warning: failed to find gettimeofday in vDSO\n"); + } static long sys_getcpu(unsigned * cpu, unsigned * node, @@ -117,6 +126,11 @@ static inline int sys_clock_gettime(clockid_t id, struct timespec *ts) return syscall(__NR_clock_gettime, id, ts); } +static inline int sys_gettimeofday(struct timeval *tv, struct timezone *tz) +{ + return syscall(__NR_gettimeofday, tv, tz); +} + static void test_getcpu(void) { printf("[RUN]\tTesting getcpu...\n"); @@ -177,6 +191,14 @@ static bool ts_leq(const struct timespec *a, const struct timespec *b) return a->tv_nsec <= b->tv_nsec; } +static bool tv_leq(const struct timeval *a, const struct timeval *b) +{ + if (a->tv_sec != b->tv_sec) + return a->tv_sec < b->tv_sec; + else + return a->tv_usec <= b->tv_usec; +} + static char const * const clocknames[] = { [0] = "CLOCK_REALTIME", [1] = "CLOCK_MONOTONIC", @@ -248,11 +270,62 @@ static void test_clock_gettime(void) test_one_clock_gettime(INT_MAX, "invalid"); } +static void test_gettimeofday(void) +{ + struct timeval start, vdso, end; + struct timezone sys_tz, vdso_tz; + int vdso_ret, end_ret; + + if (!vdso_gettimeofday) + return; + + printf("[RUN]\tTesting gettimeofday...\n"); + + if (sys_gettimeofday(&start, &sys_tz) < 0) { + printf("[FAIL]\tsys_gettimeofday failed (%d)\n", errno); + nerrs++; + return; + } + + vdso_ret = vdso_gettimeofday(&vdso, &vdso_tz); + end_ret = sys_gettimeofday(&end, NULL); + + if (vdso_ret != 0 || end_ret != 0) { + printf("[FAIL]\tvDSO returned %d, syscall errno=%d\n", + vdso_ret, errno); + nerrs++; + return; + } + + printf("\t%llu.%06ld %llu.%06ld %llu.%06ld\n", + (unsigned long long)start.tv_sec, start.tv_usec, + (unsigned long long)vdso.tv_sec, vdso.tv_usec, + (unsigned long long)end.tv_sec, end.tv_usec); + + if (!tv_leq(&start, &vdso) || !tv_leq(&vdso, &end)) { + printf("[FAIL]\tTimes are out of sequence\n"); + nerrs++; + } + + if (sys_tz.tz_minuteswest == vdso_tz.tz_minuteswest && + sys_tz.tz_dsttime == vdso_tz.tz_dsttime) { + printf("[OK]\ttimezones match: minuteswest=%d, dsttime=%d\n", + sys_tz.tz_minuteswest, sys_tz.tz_dsttime); + } else { + printf("[FAIL]\ttimezones do not match\n"); + nerrs++; + } + + /* And make sure that passing NULL for tz doesn't crash. */ + vdso_gettimeofday(&vdso, NULL); +} + int main(int argc, char **argv) { fill_function_pointers(); test_clock_gettime(); + test_gettimeofday(); /* * Test getcpu() last so that, if something goes wrong setting affinity, From 9c80c5a8831471e0a3e139aad1b0d4c0fdc50b2f Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 3 Oct 2018 19:31:44 +0200 Subject: [PATCH 1556/1762] ASoC: intel: skylake: Add missing break in skl_tplg_get_token() skl_tplg_get_token() misses a break in the big switch() block for SKL_TKN_U8_CORE_ID entry. Spotted nicely by -Wimplicit-fallthrough compiler option. Fixes: 6277e83292a2 ("ASoC: Intel: Skylake: Parse vendor tokens to build module data") Cc: Signed-off-by: Takashi Iwai Signed-off-by: Mark Brown --- sound/soc/intel/skylake/skl-topology.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c index 52a9915da0f5..cf8848b779dc 100644 --- a/sound/soc/intel/skylake/skl-topology.c +++ b/sound/soc/intel/skylake/skl-topology.c @@ -2460,6 +2460,7 @@ static int skl_tplg_get_token(struct device *dev, case SKL_TKN_U8_CORE_ID: mconfig->core_id = tkn_elem->value; + break; case SKL_TKN_U8_MOD_TYPE: mconfig->m_type = tkn_elem->value; From 8e9f7265eda9f3a662ca1ca47a69042a7840735b Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 1 Oct 2018 19:44:30 +0300 Subject: [PATCH 1557/1762] ASoC: qdsp6: q6asm-dai: checking NULL vs IS_ERR() The q6asm_audio_client_alloc() doesn't return NULL, it returns error pointers. Fixes: 2a9e92d371db ("ASoC: qdsp6: q6asm: Add q6asm dai driver") Signed-off-by: Dan Carpenter Signed-off-by: Mark Brown --- sound/soc/qcom/qdsp6/q6asm-dai.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sound/soc/qcom/qdsp6/q6asm-dai.c b/sound/soc/qcom/qdsp6/q6asm-dai.c index c3806d7037fc..a16c71c03058 100644 --- a/sound/soc/qcom/qdsp6/q6asm-dai.c +++ b/sound/soc/qcom/qdsp6/q6asm-dai.c @@ -318,10 +318,11 @@ static int q6asm_dai_open(struct snd_pcm_substream *substream) prtd->audio_client = q6asm_audio_client_alloc(dev, (q6asm_cb)event_handler, prtd, stream_id, LEGACY_PCM_MODE); - if (!prtd->audio_client) { + if (IS_ERR(prtd->audio_client)) { pr_info("%s: Could not allocate memory\n", __func__); + ret = PTR_ERR(prtd->audio_client); kfree(prtd); - return -ENOMEM; + return ret; } if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) From cfe9ee5f2b7808ceec21df83a45e38afcc647153 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Wed, 3 Oct 2018 21:36:27 +0200 Subject: [PATCH 1558/1762] ASoC: pxa-ssp: enable and disable extclk if given If a "extclk" clock is given, enable and disable it when appropriate. Signed-off-by: Daniel Mack Signed-off-by: Mark Brown --- sound/soc/pxa/pxa-ssp.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c index 69033e1a84e6..adcf8ba9d287 100644 --- a/sound/soc/pxa/pxa-ssp.c +++ b/sound/soc/pxa/pxa-ssp.c @@ -103,6 +103,9 @@ static int pxa_ssp_startup(struct snd_pcm_substream *substream, pxa_ssp_disable(ssp); } + if (priv->extclk) + clk_prepare_enable(priv->extclk); + dma = kzalloc(sizeof(struct snd_dmaengine_dai_dma_data), GFP_KERNEL); if (!dma) return -ENOMEM; @@ -125,6 +128,9 @@ static void pxa_ssp_shutdown(struct snd_pcm_substream *substream, clk_disable_unprepare(ssp->clk); } + if (priv->extclk) + clk_disable_unprepare(priv->extclk); + kfree(snd_soc_dai_get_dma_data(cpu_dai, substream)); snd_soc_dai_set_dma_data(cpu_dai, substream, NULL); } From 466dee75b3364d05b43ddfe41ef2e8887b6a3ea7 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Wed, 3 Oct 2018 21:32:34 +0200 Subject: [PATCH 1559/1762] ASoC: add fault detect recovery property to DT bindings The driver already has support for setting the FDRB bit in the CONFA register through platform data, but there was no property to set it in the device-tree bindings. Signed-off-by: Daniel Mack Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/st,sta32x.txt | 3 +++ sound/soc/codecs/sta32x.c | 2 ++ 2 files changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/st,sta32x.txt b/Documentation/devicetree/bindings/sound/st,sta32x.txt index 255de3ae5b2f..ff4a685a4303 100644 --- a/Documentation/devicetree/bindings/sound/st,sta32x.txt +++ b/Documentation/devicetree/bindings/sound/st,sta32x.txt @@ -39,6 +39,9 @@ Optional properties: - st,thermal-warning-recover: If present, thermal warning recovery is enabled. + - st,fault-detect-recovery: + If present, fault detect recovery is enabled. + - st,thermal-warning-adjustment: If present, thermal warning adjustment is enabled. diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c index d5035f2f2b2b..22de1593443c 100644 --- a/sound/soc/codecs/sta32x.c +++ b/sound/soc/codecs/sta32x.c @@ -1038,6 +1038,8 @@ static int sta32x_probe_dt(struct device *dev, struct sta32x_priv *sta32x) of_property_read_u8(np, "st,ch3-output-mapping", &pdata->ch3_output_mapping); + if (of_get_property(np, "st,fault-detect-recovery", NULL)) + pdata->fault_detect_recovery = 1; if (of_get_property(np, "st,thermal-warning-recovery", NULL)) pdata->thermal_warning_recovery = 1; if (of_get_property(np, "st,thermal-warning-adjustment", NULL)) From fd6b6d9b82f97a851fb0078201ddc38fe9728cda Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Mon, 1 Oct 2018 14:25:34 -0700 Subject: [PATCH 1560/1762] KVM: VMX: check for existence of secondary exec controls before accessing Return early from vmx_set_virtual_apic_mode() if the processor doesn't support VIRTUALIZE_APIC_ACCESSES or VIRTUALIZE_X2APIC_MODE, both of which reside in SECONDARY_VM_EXEC_CONTROL. This eliminates warnings due to VMWRITEs to SECONDARY_VM_EXEC_CONTROL (VMCS field 401e) failing on processors without secondary exec controls. Remove the similar check for TPR shadowing as it is incorporated in the flexpriority_enabled check and the APIC-related code in vmx_update_msr_bitmap() is further gated by VIRTUALIZE_X2APIC_MODE. Reported-by: Gerhard Wiesinger Fixes: 8d860bbeedef ("kvm: vmx: Basic APIC virtualization controls have three settings") Cc: Jim Mattson Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index b16b2664cfe1..764ae031054f 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -10214,15 +10214,16 @@ static void vmx_set_virtual_apic_mode(struct kvm_vcpu *vcpu) if (!lapic_in_kernel(vcpu)) return; + if (!flexpriority_enabled && + !cpu_has_vmx_virtualize_x2apic_mode()) + return; + /* Postpone execution until vmcs01 is the current VMCS. */ if (is_guest_mode(vcpu)) { to_vmx(vcpu)->nested.change_vmcs01_virtual_apic_mode = true; return; } - if (!cpu_need_tpr_shadow(vcpu)) - return; - sec_exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL); sec_exec_control &= ~(SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES | SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE); From 2cf7ea9f40fabee0f8b40db4eb2d1e85cc6c0a95 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Wed, 3 Oct 2018 10:34:00 +0200 Subject: [PATCH 1561/1762] KVM: VMX: hide flexpriority from guest when disabled at the module level As of commit 8d860bbeedef ("kvm: vmx: Basic APIC virtualization controls have three settings"), KVM will disable VIRTUALIZE_APIC_ACCESSES when a nested guest writes APIC_BASE MSR and kvm-intel.flexpriority=0, whereas previously KVM would allow a nested guest to enable VIRTUALIZE_APIC_ACCESSES so long as it's supported in hardware. That is, KVM now advertises VIRTUALIZE_APIC_ACCESSES to a guest but doesn't (always) allow setting it when kvm-intel.flexpriority=0, and may even initially allow the control and then clear it when the nested guest writes APIC_BASE MSR, which is decidedly odd even if it doesn't cause functional issues. Hide the control completely when the module parameter is cleared. reported-by: Sean Christopherson Fixes: 8d860bbeedef ("kvm: vmx: Basic APIC virtualization controls have three settings") Cc: Jim Mattson Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 764ae031054f..55b62760b694 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -3589,12 +3589,12 @@ static void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, bool apicv) msrs->secondary_ctls_high); msrs->secondary_ctls_low = 0; msrs->secondary_ctls_high &= - SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES | SECONDARY_EXEC_DESC | SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE | SECONDARY_EXEC_APIC_REGISTER_VIRT | SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY | SECONDARY_EXEC_WBINVD_EXITING; + /* * We can emulate "VMCS shadowing," even if the hardware * doesn't support it. @@ -3651,6 +3651,10 @@ static void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, bool apicv) msrs->secondary_ctls_high |= SECONDARY_EXEC_UNRESTRICTED_GUEST; + if (flexpriority_enabled) + msrs->secondary_ctls_high |= + SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES; + /* miscellaneous data */ rdmsr(MSR_IA32_VMX_MISC, msrs->misc_low, From 601350ff58d5415a001769532f6b8333820e5786 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Fri, 28 Sep 2018 21:00:48 +0300 Subject: [PATCH 1562/1762] ovl: fix access beyond unterminated strings KASAN detected slab-out-of-bounds access in printk from overlayfs, because string format used %*s instead of %.*s. > BUG: KASAN: slab-out-of-bounds in string+0x298/0x2d0 lib/vsprintf.c:604 > Read of size 1 at addr ffff8801c36c66ba by task syz-executor2/27811 > > CPU: 0 PID: 27811 Comm: syz-executor2 Not tainted 4.19.0-rc5+ #36 ... > printk+0xa7/0xcf kernel/printk/printk.c:1996 > ovl_lookup_index.cold.15+0xe8/0x1f8 fs/overlayfs/namei.c:689 Reported-by: syzbot+376cea2b0ef340db3dd4@syzkaller.appspotmail.com Signed-off-by: Amir Goldstein Signed-off-by: Miklos Szeredi Fixes: 359f392ca53e ("ovl: lookup index entry for copy up origin") Cc: # v4.13 --- fs/overlayfs/namei.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c index f28711846dd6..9c0ca6a7becf 100644 --- a/fs/overlayfs/namei.c +++ b/fs/overlayfs/namei.c @@ -686,7 +686,7 @@ struct dentry *ovl_lookup_index(struct ovl_fs *ofs, struct dentry *upper, index = NULL; goto out; } - pr_warn_ratelimited("overlayfs: failed inode index lookup (ino=%lu, key=%*s, err=%i);\n" + pr_warn_ratelimited("overlayfs: failed inode index lookup (ino=%lu, key=%.*s, err=%i);\n" "overlayfs: mount with '-o index=off' to disable inodes index.\n", d_inode(origin)->i_ino, name.len, name.name, err); From 1a8f8d2a443ef9ad9a3065ba8c8119df714240fa Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Thu, 4 Oct 2018 14:49:10 +0200 Subject: [PATCH 1563/1762] ovl: fix format of setxattr debug Format has a typo: it was meant to be "%.*s", not "%*s". But at some point callers grew nonprintable values as well, so use "%*pE" instead with a maximized length. Reported-by: Amir Goldstein Signed-off-by: Miklos Szeredi Fixes: 3a1e819b4e80 ("ovl: store file handle of lower inode on copy up") Cc: # v4.12 --- fs/overlayfs/overlayfs.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index f61839e1054c..a3c0d9584312 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -152,8 +152,8 @@ static inline int ovl_do_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags) { int err = vfs_setxattr(dentry, name, value, size, flags); - pr_debug("setxattr(%pd2, \"%s\", \"%*s\", 0x%x) = %i\n", - dentry, name, (int) size, (char *) value, flags, err); + pr_debug("setxattr(%pd2, \"%s\", \"%*pE\", %zu, 0x%x) = %i\n", + dentry, name, min((int)size, 48), value, size, flags, err); return err; } From 757b1aa00259a44f94bd120b9637720b9aaf36eb Mon Sep 17 00:00:00 2001 From: Tzung-Bi Shih Date: Thu, 4 Oct 2018 18:43:01 +0800 Subject: [PATCH 1564/1762] ASoC: ts3a227e: fix a typo in documentation There is no "MACBIAS". It should be "MICBIAS". Signed-off-by: Tzung-Bi Shih Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/ts3a227e.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/sound/ts3a227e.txt b/Documentation/devicetree/bindings/sound/ts3a227e.txt index 3ed8359144d3..21ab45bc7e8f 100644 --- a/Documentation/devicetree/bindings/sound/ts3a227e.txt +++ b/Documentation/devicetree/bindings/sound/ts3a227e.txt @@ -14,7 +14,7 @@ Required properties: Optional properies: - ti,micbias: Intended MICBIAS voltage (datasheet section 9.6.7). - Select 0/1/2/3/4/5/6/7 to specify MACBIAS voltage + Select 0/1/2/3/4/5/6/7 to specify MICBIAS voltage 2.1V/2.2V/2.3V/2.4V/2.5V/2.6V/2.7V/2.8V Default value is "1" (2.2V). From 7e7126846c95a34f98a1524d5c473af1f0783735 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Wed, 3 Oct 2018 13:44:26 +0200 Subject: [PATCH 1565/1762] kvm: nVMX: fix entry with pending interrupt if APICv is enabled MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit b5861e5cf2fcf83031ea3e26b0a69d887adf7d21 introduced a check on the interrupt-window and NMI-window CPU execution controls in order to inject an external interrupt vmexit before the first guest instruction executes. However, when APIC virtualization is enabled the host does not need a vmexit in order to inject an interrupt at the next interrupt window; instead, it just places the interrupt vector in RVI and the processor will inject it as soon as possible. Therefore, on machines with APICv it is not enough to check the CPU execution controls: the same scenario can also happen if RVI>vPPR. Fixes: b5861e5cf2fcf83031ea3e26b0a69d887adf7d21 Reviewed-by: Nikita Leshchenko Cc: Sean Christopherson Cc: Liran Alon Cc: Radim Krčmář Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 36 +++++++++++++++++++++++++----------- 1 file changed, 25 insertions(+), 11 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 55b62760b694..612fd17be635 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -6162,6 +6162,11 @@ static void vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu) nested_mark_vmcs12_pages_dirty(vcpu); } +static u8 vmx_get_rvi(void) +{ + return vmcs_read16(GUEST_INTR_STATUS) & 0xff; +} + static bool vmx_guest_apic_has_interrupt(struct kvm_vcpu *vcpu) { struct vcpu_vmx *vmx = to_vmx(vcpu); @@ -6174,7 +6179,7 @@ static bool vmx_guest_apic_has_interrupt(struct kvm_vcpu *vcpu) WARN_ON_ONCE(!vmx->nested.virtual_apic_page)) return false; - rvi = vmcs_read16(GUEST_INTR_STATUS) & 0xff; + rvi = vmx_get_rvi(); vapic_page = kmap(vmx->nested.virtual_apic_page); vppr = *((u32 *)(vapic_page + APIC_PROCPRI)); @@ -10349,6 +10354,14 @@ static int vmx_sync_pir_to_irr(struct kvm_vcpu *vcpu) return max_irr; } +static u8 vmx_has_apicv_interrupt(struct kvm_vcpu *vcpu) +{ + u8 rvi = vmx_get_rvi(); + u8 vppr = kvm_lapic_get_reg(vcpu->arch.apic, APIC_PROCPRI); + + return ((rvi & 0xf0) > (vppr & 0xf0)); +} + static void vmx_load_eoi_exitmap(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap) { if (!kvm_vcpu_apicv_active(vcpu)) @@ -12593,10 +12606,13 @@ static int enter_vmx_non_root_mode(struct kvm_vcpu *vcpu, u32 *exit_qual) struct vmcs12 *vmcs12 = get_vmcs12(vcpu); bool from_vmentry = !!exit_qual; u32 dummy_exit_qual; - u32 vmcs01_cpu_exec_ctrl; + bool evaluate_pending_interrupts; int r = 0; - vmcs01_cpu_exec_ctrl = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL); + evaluate_pending_interrupts = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL) & + (CPU_BASED_VIRTUAL_INTR_PENDING | CPU_BASED_VIRTUAL_NMI_PENDING); + if (likely(!evaluate_pending_interrupts) && kvm_vcpu_apicv_active(vcpu)) + evaluate_pending_interrupts |= vmx_has_apicv_interrupt(vcpu); enter_guest_mode(vcpu); @@ -12644,16 +12660,14 @@ static int enter_vmx_non_root_mode(struct kvm_vcpu *vcpu, u32 *exit_qual) * to L1 or delivered directly to L2 (e.g. In case L1 don't * intercept EXTERNAL_INTERRUPT). * - * Usually this would be handled by L0 requesting a - * IRQ/NMI window by setting VMCS accordingly. However, - * this setting was done on VMCS01 and now VMCS02 is active - * instead. Thus, we force L0 to perform pending event - * evaluation by requesting a KVM_REQ_EVENT. + * Usually this would be handled by the processor noticing an + * IRQ/NMI window request, or checking RVI during evaluation of + * pending virtual interrupts. However, this setting was done + * on VMCS01 and now VMCS02 is active instead. Thus, we force L0 + * to perform pending event evaluation by requesting a KVM_REQ_EVENT. */ - if (vmcs01_cpu_exec_ctrl & - (CPU_BASED_VIRTUAL_INTR_PENDING | CPU_BASED_VIRTUAL_NMI_PENDING)) { + if (unlikely(evaluate_pending_interrupts)) kvm_make_request(KVM_REQ_EVENT, vcpu); - } /* * Note no nested_vmx_succeed or nested_vmx_fail here. At this point From 987bf116445db5d63a5c2ed94c4479687d9c9973 Mon Sep 17 00:00:00 2001 From: Shirish S Date: Mon, 24 Sep 2018 19:01:47 +0530 Subject: [PATCH 1566/1762] drm/amd/display: Signal hw_done() after waiting for flip_done() In amdgpu_dm_commit_tail(), wait until flip_done() is signaled before we signal hw_done(). [Why] This is to temporarily address a paging error that occurs when a nonblocking commit contends with another commit, particularly in a mirrored display configuration where at least 2 CRTCs are updated. The error occurs in drm_atomic_helper_wait_for_flip_done(), when we attempt to access the contents of new_crtc_state->commit. Here's the sequence for a mirrored 2 display setup (irrelevant steps left out for clarity): **THREAD 1** | **THREAD 2** | Initialize atomic state for flip | | Queue worker | ... | Do work for flip | | Signal hw_done() on CRTC 1 | Signal hw_done() on CRTC 2 | | Wait for flip_done() on CRTC 1 <---- **PREEMPTED BY THREAD 1** Initialize atomic state for cursor | update (1) | | Do cursor update work on both CRTCs | | Clear atomic state (2) | **DONE** | ... | | Wait for flip_done() on CRTC 2 | *ERROR* | The issue starts with (1). When the atomic state is initialized, the current CRTC states are duplicated to be the new_crtc_states, and referenced to be the old_crtc_states. (The new_crtc_states are to be filled with update data.) Some things to note: * Due to the mirrored configuration, the cursor updates on both CRTCs. * At this point, the pflip IRQ has already been handled, and flip_done signaled on all CRTCs. The cursor commit can therefore continue. * The old_crtc_states used by the cursor update are the **same states** as the new_crtc_states used by the flip worker. At (2), the old_crtc_state is freed (*), and the cursor commit completes. We then context switch back to the flip worker, where we attempt to access the new_crtc_state->commit object. This is problematic, as this state has already been freed. (*) Technically, 'state->crtcs[i].state' is freed, which was made to reference old_crtc_state in drm_atomic_helper_swap_state() [How] By moving hw_done() after wait_for_flip_done(), we're guaranteed that the new_crtc_state (from the flip worker's perspective) still exists. This is because any other commit will be blocked, waiting for the hw_done() signal. Note that both the i915 and imx drivers have this sequence flipped already, masking this problem. Signed-off-by: Shirish S Signed-off-by: Leo Li Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 96875950845a..6903fe6c894b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4633,12 +4633,18 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) } spin_unlock_irqrestore(&adev->ddev->event_lock, flags); - /* Signal HW programming completion */ - drm_atomic_helper_commit_hw_done(state); if (wait_for_vblank) drm_atomic_helper_wait_for_flip_done(dev, state); + /* + * FIXME: + * Delay hw_done() until flip_done() is signaled. This is to block + * another commit from freeing the CRTC state while we're still + * waiting on flip_done. + */ + drm_atomic_helper_commit_hw_done(state); + drm_atomic_helper_cleanup_planes(dev, state); /* Finally, drop a runtime PM reference for each newly disabled CRTC, From 11b29c9e25788d0afb2ddb67bcd89424bd25f2f7 Mon Sep 17 00:00:00 2001 From: Felix Kuehling Date: Tue, 2 Oct 2018 18:41:12 -0400 Subject: [PATCH 1567/1762] drm/amdkfd: Fix incorrect use of process->mm MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This mm_struct pointer should never be dereferenced. If running in a user thread, just use current->mm. If running in a kernel worker use get_task_mm to get a safe reference to the mm_struct. Reviewed-by: Oded Gabbay Acked-by: Christian König Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher --- .../drm/amd/amdkfd/kfd_device_queue_manager.c | 37 +++++++++++++++---- 1 file changed, 29 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c index ec0d62a16e53..4f22e745df51 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -358,8 +358,8 @@ static int create_compute_queue_nocpsch(struct device_queue_manager *dqm, struct queue *q, struct qcm_process_device *qpd) { - int retval; struct mqd_manager *mqd_mgr; + int retval; mqd_mgr = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_COMPUTE); if (!mqd_mgr) @@ -387,8 +387,12 @@ static int create_compute_queue_nocpsch(struct device_queue_manager *dqm, if (!q->properties.is_active) return 0; - retval = mqd_mgr->load_mqd(mqd_mgr, q->mqd, q->pipe, q->queue, - &q->properties, q->process->mm); + if (WARN(q->process->mm != current->mm, + "should only run in user thread")) + retval = -EFAULT; + else + retval = mqd_mgr->load_mqd(mqd_mgr, q->mqd, q->pipe, q->queue, + &q->properties, current->mm); if (retval) goto out_uninit_mqd; @@ -545,9 +549,15 @@ static int update_queue(struct device_queue_manager *dqm, struct queue *q) retval = map_queues_cpsch(dqm); else if (q->properties.is_active && (q->properties.type == KFD_QUEUE_TYPE_COMPUTE || - q->properties.type == KFD_QUEUE_TYPE_SDMA)) - retval = mqd_mgr->load_mqd(mqd_mgr, q->mqd, q->pipe, q->queue, - &q->properties, q->process->mm); + q->properties.type == KFD_QUEUE_TYPE_SDMA)) { + if (WARN(q->process->mm != current->mm, + "should only run in user thread")) + retval = -EFAULT; + else + retval = mqd_mgr->load_mqd(mqd_mgr, q->mqd, + q->pipe, q->queue, + &q->properties, current->mm); + } out_unlock: dqm_unlock(dqm); @@ -653,6 +663,7 @@ out: static int restore_process_queues_nocpsch(struct device_queue_manager *dqm, struct qcm_process_device *qpd) { + struct mm_struct *mm = NULL; struct queue *q; struct mqd_manager *mqd_mgr; struct kfd_process_device *pdd; @@ -686,6 +697,15 @@ static int restore_process_queues_nocpsch(struct device_queue_manager *dqm, kfd_flush_tlb(pdd); } + /* Take a safe reference to the mm_struct, which may otherwise + * disappear even while the kfd_process is still referenced. + */ + mm = get_task_mm(pdd->process->lead_thread); + if (!mm) { + retval = -EFAULT; + goto out; + } + /* activate all active queues on the qpd */ list_for_each_entry(q, &qpd->queues_list, list) { if (!q->properties.is_evicted) @@ -700,14 +720,15 @@ static int restore_process_queues_nocpsch(struct device_queue_manager *dqm, q->properties.is_evicted = false; q->properties.is_active = true; retval = mqd_mgr->load_mqd(mqd_mgr, q->mqd, q->pipe, - q->queue, &q->properties, - q->process->mm); + q->queue, &q->properties, mm); if (retval) goto out; dqm->queue_count++; } qpd->evicted = 0; out: + if (mm) + mmput(mm); dqm_unlock(dqm); return retval; } From f3c84a8e3e922afdcbc55f04df8fdf8a548f5a21 Mon Sep 17 00:00:00 2001 From: Nir Dotan Date: Thu, 4 Oct 2018 15:48:02 +0000 Subject: [PATCH 1568/1762] mlxsw: pci: Derive event type from event queue number Due to a hardware issue in Spectrum-2, the field event_type of the event queue element (EQE) has become reserved. It was used to distinguish between command interface completion events and completion events. Use queue number to determine event type, as command interface completion events are always received on EQ0 and mlxsw driver maps completion events to EQ1. Fixes: c3ab435466d5 ("mlxsw: spectrum: Extend to support Spectrum-2 ASIC") Signed-off-by: Nir Dotan Reviewed-by: Jiri Pirko Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlxsw/pci.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c index 4d271fb3de3d..5890fdfd62c3 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/pci.c +++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c @@ -718,14 +718,17 @@ static void mlxsw_pci_eq_tasklet(unsigned long data) memset(&active_cqns, 0, sizeof(active_cqns)); while ((eqe = mlxsw_pci_eq_sw_eqe_get(q))) { - u8 event_type = mlxsw_pci_eqe_event_type_get(eqe); - switch (event_type) { - case MLXSW_PCI_EQE_EVENT_TYPE_CMD: + /* Command interface completion events are always received on + * queue MLXSW_PCI_EQ_ASYNC_NUM (EQ0) and completion events + * are mapped to queue MLXSW_PCI_EQ_COMP_NUM (EQ1). + */ + switch (q->num) { + case MLXSW_PCI_EQ_ASYNC_NUM: mlxsw_pci_eq_cmd_event(mlxsw_pci, eqe); q->u.eq.ev_cmd_count++; break; - case MLXSW_PCI_EQE_EVENT_TYPE_COMP: + case MLXSW_PCI_EQ_COMP_NUM: cqn = mlxsw_pci_eqe_cqn_get(eqe); set_bit(cqn, active_cqns); cq_handle = true; From c360867ec46a4ec5cb19e5c329d65dff522cc69d Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Thu, 4 Oct 2018 15:48:03 +0000 Subject: [PATCH 1569/1762] mlxsw: spectrum: Delete RIF when VLAN device is removed In commit 602b74eda813 ("mlxsw: spectrum_switchdev: Do not leak RIFs when removing bridge") I handled the case where RIFs created for VLAN devices were not properly cleaned up when their real device (a bridge) was removed. However, I forgot to handle the case of the VLAN device itself being removed. Do so now when the VLAN device is being unlinked from its real device. Fixes: 99f44bb3527b ("mlxsw: spectrum: Enable L3 interfaces on top of bridge devices") Signed-off-by: Ido Schimmel Reviewed-by: Jiri Pirko Reported-by: Artem Shvorin Tested-by: Artem Shvorin Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index b492152c8881..30bb2c533cec 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -4845,6 +4845,8 @@ static int mlxsw_sp_netdevice_bridge_event(struct net_device *br_dev, upper_dev = info->upper_dev; if (info->linking) break; + if (is_vlan_dev(upper_dev)) + mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, upper_dev); if (netif_is_macvlan(upper_dev)) mlxsw_sp_rif_macvlan_del(mlxsw_sp, upper_dev); break; From 69e445ab8b66a9f30519842ef18be555d3ee9b51 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 4 Oct 2018 11:08:12 +0200 Subject: [PATCH 1570/1762] PM / core: Clear the direct_complete flag on errors If __device_suspend() runs asynchronously (in which case the device passed to it is in dpm_suspended_list at that point) and it returns early on an error or pending wakeup, and the power.direct_complete flag has been set for the device already, the subsequent device_resume() will be confused by that and it will call pm_runtime_enable() incorrectly, as runtime PM has not been disabled for the device by __device_suspend(). To avoid that, clear power.direct_complete if __device_suspend() is not going to disable runtime PM for the device before returning. Fixes: aae4518b3124 (PM / sleep: Mechanism to avoid resuming runtime-suspended devices unnecessarily) Reported-by: Al Cooper Tested-by: Al Cooper Reviewed-by: Ulf Hansson Cc: 3.16+ # 3.16+ Signed-off-by: Rafael J. Wysocki --- drivers/base/power/main.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index 3f68e2919dc5..a690fd400260 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -1713,8 +1713,10 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async) dpm_wait_for_subordinate(dev, async); - if (async_error) + if (async_error) { + dev->power.direct_complete = false; goto Complete; + } /* * If a device configured to wake up the system from sleep states @@ -1726,6 +1728,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async) pm_wakeup_event(dev, 0); if (pm_wakeup_pending()) { + dev->power.direct_complete = false; async_error = -EBUSY; goto Complete; } From 4561ffca88c546f96367f94b8f1e4715a9c62314 Mon Sep 17 00:00:00 2001 From: Joe Thornber Date: Mon, 24 Sep 2018 16:19:30 -0400 Subject: [PATCH 1571/1762] dm cache metadata: ignore hints array being too small during resize Commit fd2fa9541 ("dm cache metadata: save in-core policy_hint_size to on-disk superblock") enabled previously written policy hints to be used after a cache is reactivated. But in doing so the cache metadata's hint array was left exposed to out of bounds access because on resize the metadata's on-disk hint array wasn't ever extended. Fix this by ignoring that there are no on-disk hints associated with the newly added cache blocks. An expanded on-disk hint array is later rewritten upon the next clean shutdown of the cache. Fixes: fd2fa9541 ("dm cache metadata: save in-core policy_hint_size to on-disk superblock") Cc: stable@vger.kernel.org Signed-off-by: Joe Thornber Signed-off-by: Mike Snitzer --- drivers/md/dm-cache-metadata.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c index 69dddeab124c..5936de71883f 100644 --- a/drivers/md/dm-cache-metadata.c +++ b/drivers/md/dm-cache-metadata.c @@ -1455,8 +1455,8 @@ static int __load_mappings(struct dm_cache_metadata *cmd, if (hints_valid) { r = dm_array_cursor_next(&cmd->hint_cursor); if (r) { - DMERR("dm_array_cursor_next for hint failed"); - goto out; + dm_array_cursor_end(&cmd->hint_cursor); + hints_valid = false; } } From 5d07384a666d4b2f781dc056bfeec2c27fbdf383 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 25 Sep 2018 20:56:02 -0400 Subject: [PATCH 1572/1762] dm cache: fix resize crash if user doesn't reload cache table A reload of the cache's DM table is needed during resize because otherwise a crash will occur when attempting to access smq policy entries associated with the portion of the cache that was recently extended. The reason is cache-size based data structures in the policy will not be resized, the only way to safely extend the cache is to allow for a proper cache policy initialization that occurs when the cache table is loaded. For example the smq policy's space_init(), init_allocator(), calc_hotspot_params() must be sized based on the extended cache size. The fix for this is to disallow cache resizes of this pattern: 1) suspend "cache" target's device 2) resize the fast device used for the cache 3) resume "cache" target's device Instead, the last step must be a full reload of the cache's DM table. Fixes: 66a636356 ("dm cache: add stochastic-multi-queue (smq) policy") Cc: stable@vger.kernel.org Signed-off-by: Mike Snitzer --- drivers/md/dm-cache-target.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c index a53413371725..e13d991e9fb5 100644 --- a/drivers/md/dm-cache-target.c +++ b/drivers/md/dm-cache-target.c @@ -3009,8 +3009,13 @@ static dm_cblock_t get_cache_dev_size(struct cache *cache) static bool can_resize(struct cache *cache, dm_cblock_t new_size) { - if (from_cblock(new_size) > from_cblock(cache->cache_size)) - return true; + if (from_cblock(new_size) > from_cblock(cache->cache_size)) { + if (cache->sized) { + DMERR("%s: unable to extend cache due to missing cache table reload", + cache_device_name(cache)); + return false; + } + } /* * We can't drop a dirty block when shrinking the cache. From 479adb89a97b0a33e5a9d702119872cc82ca21aa Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 4 Oct 2018 13:28:08 -0700 Subject: [PATCH 1573/1762] cgroup: Fix dom_cgrp propagation when enabling threaded mode A cgroup which is already a threaded domain may be converted into a threaded cgroup if the prerequisite conditions are met. When this happens, all threaded descendant should also have their ->dom_cgrp updated to the new threaded domain cgroup. Unfortunately, this propagation was missing leading to the following failure. # cd /sys/fs/cgroup/unified # cat cgroup.subtree_control # show that no controllers are enabled # mkdir -p mycgrp/a/b/c # echo threaded > mycgrp/a/b/cgroup.type At this point, the hierarchy looks as follows: mycgrp [d] a [dt] b [t] c [inv] Now let's make node "a" threaded (and thus "mycgrp" s made "domain threaded"): # echo threaded > mycgrp/a/cgroup.type By this point, we now have a hierarchy that looks as follows: mycgrp [dt] a [t] b [t] c [inv] But, when we try to convert the node "c" from "domain invalid" to "threaded", we get ENOTSUP on the write(): # echo threaded > mycgrp/a/b/c/cgroup.type sh: echo: write error: Operation not supported This patch fixes the problem by * Moving the opencoded ->dom_cgrp save and restoration in cgroup_enable_threaded() into cgroup_{save|restore}_control() so that mulitple cgroups can be handled. * Updating all threaded descendants' ->dom_cgrp to point to the new dom_cgrp when enabling threaded mode. Signed-off-by: Tejun Heo Reported-and-tested-by: "Michael Kerrisk (man-pages)" Reported-by: Amin Jamali Reported-by: Joao De Almeida Pereira Link: https://lore.kernel.org/r/CAKgNAkhHYCMn74TCNiMJ=ccLd7DcmXSbvw3CbZ1YREeG7iJM5g@mail.gmail.com Fixes: 454000adaa2a ("cgroup: introduce cgroup->dom_cgrp and threaded css_set handling") Cc: stable@vger.kernel.org # v4.14+ --- include/linux/cgroup-defs.h | 1 + kernel/cgroup/cgroup.c | 25 ++++++++++++++++--------- 2 files changed, 17 insertions(+), 9 deletions(-) diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index ff20b677fb9f..22254c1fe1c5 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -412,6 +412,7 @@ struct cgroup { * specific task are charged to the dom_cgrp. */ struct cgroup *dom_cgrp; + struct cgroup *old_dom_cgrp; /* used while enabling threaded */ /* per-cpu recursive resource statistics */ struct cgroup_rstat_cpu __percpu *rstat_cpu; diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index aae10baf1902..4a3dae2a8283 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -2836,11 +2836,12 @@ restart: } /** - * cgroup_save_control - save control masks of a subtree + * cgroup_save_control - save control masks and dom_cgrp of a subtree * @cgrp: root of the target subtree * - * Save ->subtree_control and ->subtree_ss_mask to the respective old_ - * prefixed fields for @cgrp's subtree including @cgrp itself. + * Save ->subtree_control, ->subtree_ss_mask and ->dom_cgrp to the + * respective old_ prefixed fields for @cgrp's subtree including @cgrp + * itself. */ static void cgroup_save_control(struct cgroup *cgrp) { @@ -2850,6 +2851,7 @@ static void cgroup_save_control(struct cgroup *cgrp) cgroup_for_each_live_descendant_pre(dsct, d_css, cgrp) { dsct->old_subtree_control = dsct->subtree_control; dsct->old_subtree_ss_mask = dsct->subtree_ss_mask; + dsct->old_dom_cgrp = dsct->dom_cgrp; } } @@ -2875,11 +2877,12 @@ static void cgroup_propagate_control(struct cgroup *cgrp) } /** - * cgroup_restore_control - restore control masks of a subtree + * cgroup_restore_control - restore control masks and dom_cgrp of a subtree * @cgrp: root of the target subtree * - * Restore ->subtree_control and ->subtree_ss_mask from the respective old_ - * prefixed fields for @cgrp's subtree including @cgrp itself. + * Restore ->subtree_control, ->subtree_ss_mask and ->dom_cgrp from the + * respective old_ prefixed fields for @cgrp's subtree including @cgrp + * itself. */ static void cgroup_restore_control(struct cgroup *cgrp) { @@ -2889,6 +2892,7 @@ static void cgroup_restore_control(struct cgroup *cgrp) cgroup_for_each_live_descendant_post(dsct, d_css, cgrp) { dsct->subtree_control = dsct->old_subtree_control; dsct->subtree_ss_mask = dsct->old_subtree_ss_mask; + dsct->dom_cgrp = dsct->old_dom_cgrp; } } @@ -3196,6 +3200,8 @@ static int cgroup_enable_threaded(struct cgroup *cgrp) { struct cgroup *parent = cgroup_parent(cgrp); struct cgroup *dom_cgrp = parent->dom_cgrp; + struct cgroup *dsct; + struct cgroup_subsys_state *d_css; int ret; lockdep_assert_held(&cgroup_mutex); @@ -3225,12 +3231,13 @@ static int cgroup_enable_threaded(struct cgroup *cgrp) */ cgroup_save_control(cgrp); - cgrp->dom_cgrp = dom_cgrp; + cgroup_for_each_live_descendant_pre(dsct, d_css, cgrp) + if (dsct == cgrp || cgroup_is_threaded(dsct)) + dsct->dom_cgrp = dom_cgrp; + ret = cgroup_apply_control(cgrp); if (!ret) parent->nr_threaded_children++; - else - cgrp->dom_cgrp = cgrp; cgroup_finalize_control(cgrp, ret); return ret; From f7b2a56e1f3dcbdb4cf09b2b63e859ffe0e09df8 Mon Sep 17 00:00:00 2001 From: Yu Zhao Date: Fri, 28 Sep 2018 17:04:30 -0600 Subject: [PATCH 1574/1762] net/usb: cancel pending work when unbinding smsc75xx Cancel pending work before freeing smsc75xx private data structure during binding. This fixes the following crash in the driver: BUG: unable to handle kernel NULL pointer dereference at 0000000000000050 IP: mutex_lock+0x2b/0x3f Workqueue: events smsc75xx_deferred_multicast_write [smsc75xx] task: ffff8caa83e85700 task.stack: ffff948b80518000 RIP: 0010:mutex_lock+0x2b/0x3f Call Trace: smsc75xx_deferred_multicast_write+0x40/0x1af [smsc75xx] process_one_work+0x18d/0x2fc worker_thread+0x1a2/0x269 ? pr_cont_work+0x58/0x58 kthread+0xfa/0x10a ? pr_cont_work+0x58/0x58 ? rcu_read_unlock_sched_notrace+0x48/0x48 ret_from_fork+0x22/0x40 Signed-off-by: Yu Zhao Signed-off-by: David S. Miller --- drivers/net/usb/smsc75xx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index e5a4cbb366dc..ec287c9741e8 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -1520,6 +1520,7 @@ static void smsc75xx_unbind(struct usbnet *dev, struct usb_interface *intf) { struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); if (pdata) { + cancel_work_sync(&pdata->set_multicast); netif_dbg(dev, ifdown, dev->net, "free pdata\n"); kfree(pdata); pdata = NULL; From 471b83bd8bbe4e89743683ef8ecb78f7029d8288 Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Mon, 1 Oct 2018 12:21:59 +0300 Subject: [PATCH 1575/1762] team: Forbid enslaving team device to itself team's ndo_add_slave() acquires 'team->lock' and later tries to open the newly enslaved device via dev_open(). This emits a 'NETDEV_UP' event that causes the VLAN driver to add VLAN 0 on the team device. team's ndo_vlan_rx_add_vid() will also try to acquire 'team->lock' and deadlock. Fix this by checking early at the enslavement function that a team device is not being enslaved to itself. A similar check was added to the bond driver in commit 09a89c219baf ("bonding: disallow enslaving a bond to itself"). WARNING: possible recursive locking detected 4.18.0-rc7+ #176 Not tainted -------------------------------------------- syz-executor4/6391 is trying to acquire lock: (____ptrval____) (&team->lock){+.+.}, at: team_vlan_rx_add_vid+0x3b/0x1e0 drivers/net/team/team.c:1868 but task is already holding lock: (____ptrval____) (&team->lock){+.+.}, at: team_add_slave+0xdb/0x1c30 drivers/net/team/team.c:1947 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&team->lock); lock(&team->lock); *** DEADLOCK *** May be due to missing lock nesting notation 2 locks held by syz-executor4/6391: #0: (____ptrval____) (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline] #0: (____ptrval____) (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x412/0xc30 net/core/rtnetlink.c:4662 #1: (____ptrval____) (&team->lock){+.+.}, at: team_add_slave+0xdb/0x1c30 drivers/net/team/team.c:1947 stack backtrace: CPU: 1 PID: 6391 Comm: syz-executor4 Not tainted 4.18.0-rc7+ #176 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 print_deadlock_bug kernel/locking/lockdep.c:1765 [inline] check_deadlock kernel/locking/lockdep.c:1809 [inline] validate_chain kernel/locking/lockdep.c:2405 [inline] __lock_acquire.cold.64+0x1fb/0x486 kernel/locking/lockdep.c:3435 lock_acquire+0x1e4/0x540 kernel/locking/lockdep.c:3924 __mutex_lock_common kernel/locking/mutex.c:757 [inline] __mutex_lock+0x176/0x1820 kernel/locking/mutex.c:894 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:909 team_vlan_rx_add_vid+0x3b/0x1e0 drivers/net/team/team.c:1868 vlan_add_rx_filter_info+0x14a/0x1d0 net/8021q/vlan_core.c:210 __vlan_vid_add net/8021q/vlan_core.c:278 [inline] vlan_vid_add+0x63e/0x9d0 net/8021q/vlan_core.c:308 vlan_device_event.cold.12+0x2a/0x2f net/8021q/vlan.c:381 notifier_call_chain+0x180/0x390 kernel/notifier.c:93 __raw_notifier_call_chain kernel/notifier.c:394 [inline] raw_notifier_call_chain+0x2d/0x40 kernel/notifier.c:401 call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1735 call_netdevice_notifiers net/core/dev.c:1753 [inline] dev_open+0x173/0x1b0 net/core/dev.c:1433 team_port_add drivers/net/team/team.c:1219 [inline] team_add_slave+0xa8b/0x1c30 drivers/net/team/team.c:1948 do_set_master+0x1c9/0x220 net/core/rtnetlink.c:2248 do_setlink+0xba4/0x3e10 net/core/rtnetlink.c:2382 rtnl_setlink+0x2a9/0x400 net/core/rtnetlink.c:2636 rtnetlink_rcv_msg+0x46e/0xc30 net/core/rtnetlink.c:4665 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2455 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4683 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x5a0/0x760 net/netlink/af_netlink.c:1343 netlink_sendmsg+0xa18/0xfd0 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:642 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:652 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2126 __sys_sendmsg+0x11d/0x290 net/socket.c:2164 __do_sys_sendmsg net/socket.c:2173 [inline] __se_sys_sendmsg net/socket.c:2171 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2171 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x456b29 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9706bf8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9706bf96d4 RCX: 0000000000456b29 RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d3548 R14: 00000000004c8227 R15: 0000000000000000 Fixes: 87002b03baab ("net: introduce vlan_vid_[add/del] and use them instead of direct [add/kill]_vid ndo calls") Signed-off-by: Ido Schimmel Reported-and-tested-by: syzbot+bd051aba086537515cdb@syzkaller.appspotmail.com Signed-off-by: David S. Miller --- drivers/net/team/team.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index 6a047d30e8c6..d887016e54b6 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -1167,6 +1167,12 @@ static int team_port_add(struct team *team, struct net_device *port_dev, return -EBUSY; } + if (dev == port_dev) { + NL_SET_ERR_MSG(extack, "Cannot enslave team device to itself"); + netdev_err(dev, "Cannot enslave team device to itself\n"); + return -EINVAL; + } + if (port_dev->features & NETIF_F_VLAN_CHALLENGED && vlan_uses_dev(dev)) { NL_SET_ERR_MSG(extack, "Device is VLAN challenged and team device has VLAN set up"); From f74c371fe72a4f820d287db8067683fb533e4ede Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 4 Oct 2018 17:41:37 -0700 Subject: [PATCH 1576/1762] Input: mousedev - add a schedule point in mousedev_write() syzbot was able to trigger rcu stalls by calling write() with large number of bytes. Add a cond_resched() in the loop to avoid this. Link: https://lkml.org/lkml/2018/8/23/1106 Signed-off-by: Eric Dumazet Reported-by: syzbot+9436b02171ac0894d33e@syzkaller.appspotmail.com Reviewed-by: Paul E. McKenney Signed-off-by: Dmitry Torokhov --- drivers/input/mousedev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c index e08228061bcd..412fa71245af 100644 --- a/drivers/input/mousedev.c +++ b/drivers/input/mousedev.c @@ -707,6 +707,7 @@ static ssize_t mousedev_write(struct file *file, const char __user *buffer, mousedev_generate_response(client, c); spin_unlock_irq(&client->packet_lock); + cond_resched(); } kill_fasync(&client->fasync, SIGIO, POLL_IN); From dbe80d446c859873820eedfff4abc61c71f1927b Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Fri, 5 Oct 2018 00:26:00 -0400 Subject: [PATCH 1577/1762] bnxt_en: Fix VNIC reservations on the PF. The enables bit for VNIC was set wrong when calling the HWRM_FUNC_CFG firmware call to reserve VNICs. This has the effect that the firmware will keep a large number of VNICs for the PF, and having very few for VFs. DPDK driver running on the VFs, which requires more VNICs, may not work properly as a result. Fixes: 674f50a5b026 ("bnxt_en: Implement new method to reserve rings.") Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 0478e562abac..2564a92dcb02 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -4650,7 +4650,7 @@ __bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, struct hwrm_func_cfg_input *req, FUNC_CFG_REQ_ENABLES_NUM_STAT_CTXS : 0; enables |= ring_grps ? FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS : 0; - enables |= vnics ? FUNC_VF_CFG_REQ_ENABLES_NUM_VNICS : 0; + enables |= vnics ? FUNC_CFG_REQ_ENABLES_NUM_VNICS : 0; req->num_rx_rings = cpu_to_le16(rx_rings); req->num_hw_ring_grps = cpu_to_le16(ring_grps); From 5db0e0969af6501ad45fe0494039d3b9c797822b Mon Sep 17 00:00:00 2001 From: Vasundhara Volam Date: Fri, 5 Oct 2018 00:26:01 -0400 Subject: [PATCH 1578/1762] bnxt_en: Fix enables field in HWRM_QUEUE_COS2BW_CFG request In HWRM_QUEUE_COS2BW_CFG request, enables field should have the bits set only for the queue ids which are having the valid parameters. This causes firmware to return error when the TC to hardware CoS queue mapping is not 1:1 during DCBNL ETS setup. Fixes: 2e8ef77ee0ff ("bnxt_en: Add TC to hardware QoS queue mapping logic.") Signed-off-by: Vasundhara Volam Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c index ddc98c359488..a85d2be986af 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c @@ -98,13 +98,13 @@ static int bnxt_hwrm_queue_cos2bw_cfg(struct bnxt *bp, struct ieee_ets *ets, bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_COS2BW_CFG, -1, -1); for (i = 0; i < max_tc; i++) { - u8 qidx; + u8 qidx = bp->tc_to_qidx[i]; req.enables |= cpu_to_le32( - QUEUE_COS2BW_CFG_REQ_ENABLES_COS_QUEUE_ID0_VALID << i); + QUEUE_COS2BW_CFG_REQ_ENABLES_COS_QUEUE_ID0_VALID << + qidx); memset(&cos2bw, 0, sizeof(cos2bw)); - qidx = bp->tc_to_qidx[i]; cos2bw.queue_id = bp->q_info[qidx].queue_id; if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_STRICT) { cos2bw.tsa = From a2bf74f4e1b82395dad2b08d2a911d9151db71c1 Mon Sep 17 00:00:00 2001 From: Venkat Duvvuru Date: Fri, 5 Oct 2018 00:26:02 -0400 Subject: [PATCH 1579/1762] bnxt_en: free hwrm resources, if driver probe fails. When the driver probe fails, all the resources that were allocated prior to the failure must be freed. However, hwrm dma response memory is not getting freed. This patch fixes the problem described above. Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.") Signed-off-by: Venkat Duvvuru Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 2564a92dcb02..3718984a8185 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -3017,10 +3017,11 @@ static void bnxt_free_hwrm_resources(struct bnxt *bp) { struct pci_dev *pdev = bp->pdev; - dma_free_coherent(&pdev->dev, PAGE_SIZE, bp->hwrm_cmd_resp_addr, - bp->hwrm_cmd_resp_dma_addr); - - bp->hwrm_cmd_resp_addr = NULL; + if (bp->hwrm_cmd_resp_addr) { + dma_free_coherent(&pdev->dev, PAGE_SIZE, bp->hwrm_cmd_resp_addr, + bp->hwrm_cmd_resp_dma_addr); + bp->hwrm_cmd_resp_addr = NULL; + } } static int bnxt_alloc_hwrm_resources(struct bnxt *bp) @@ -9057,6 +9058,7 @@ init_err_cleanup_tc: bnxt_clear_int_mode(bp); init_err_pci_clean: + bnxt_free_hwrm_resources(bp); bnxt_cleanup_pci(bp); init_err_free: From c78fe058879bdea919d44f23e21da26f603e9166 Mon Sep 17 00:00:00 2001 From: Vasundhara Volam Date: Fri, 5 Oct 2018 00:26:03 -0400 Subject: [PATCH 1580/1762] bnxt_en: get the reduced max_irqs by the ones used by RDMA When getting the max rings supported, get the reduced max_irqs by the ones used by RDMA. If the number MSIX is the limiting factor, this bug may cause the max ring count to be higher than it should be when RDMA driver is loaded and may result in ring allocation failures. Fixes: 30f529473ec9 ("bnxt_en: Do not modify max IRQ count after RDMA driver requests/frees IRQs.") Signed-off-by: Vasundhara Volam Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 3718984a8185..e2d92548226a 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -8622,7 +8622,7 @@ static void _bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, *max_tx = hw_resc->max_tx_rings; *max_rx = hw_resc->max_rx_rings; *max_cp = min_t(int, bnxt_get_max_func_cp_rings_for_en(bp), - hw_resc->max_irqs); + hw_resc->max_irqs - bnxt_get_ulp_msix_num(bp)); *max_cp = min_t(int, *max_cp, hw_resc->max_stat_ctxs); max_ring_grps = hw_resc->max_hw_ring_grps; if (BNXT_CHIP_TYPE_NITRO_A0(bp) && BNXT_PF(bp)) { From 17c357efe5eceebdc3971a48b3d4d61a03c1178b Mon Sep 17 00:00:00 2001 From: Flavio Leitner Date: Fri, 28 Sep 2018 14:51:28 -0300 Subject: [PATCH 1581/1762] openvswitch: load NAT helper Load the respective NAT helper module if the flow uses it. Signed-off-by: Flavio Leitner Signed-off-by: David S. Miller --- net/openvswitch/conntrack.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c index 0aeb34c6389d..35ae64cbef33 100644 --- a/net/openvswitch/conntrack.c +++ b/net/openvswitch/conntrack.c @@ -1312,6 +1312,10 @@ static int ovs_ct_add_helper(struct ovs_conntrack_info *info, const char *name, rcu_assign_pointer(help->helper, helper); info->helper = helper; + + if (info->nat) + request_module("ip_nat_%s", name); + return 0; } From ca8931948344c485569b04821d1f6bcebccd376b Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Thu, 4 Oct 2018 20:24:13 -0700 Subject: [PATCH 1582/1762] net: dsa: b53: Keep CPU port as tagged in all VLANs Commit c499696e7901 ("net: dsa: b53: Stop using dev->cpu_port incorrectly") was a bit too trigger happy in removing the CPU port from the VLAN membership because we rely on DSA to program the CPU port VLAN, which it does, except it does not bother itself with tagged/untagged and just usese untagged. Having the CPU port "follow" the user ports tagged/untagged is not great and does not allow for properly differentiating, so keep the CPU port tagged in all VLANs. Reported-by: Gerhard Wiesinger Fixes: c499696e7901 ("net: dsa: b53: Stop using dev->cpu_port incorrectly") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/dsa/b53/b53_common.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c index d93c790bfbe8..ad534b90ef21 100644 --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@ -1107,7 +1107,7 @@ void b53_vlan_add(struct dsa_switch *ds, int port, b53_get_vlan_entry(dev, vid, vl); vl->members |= BIT(port); - if (untagged) + if (untagged && !dsa_is_cpu_port(ds, port)) vl->untag |= BIT(port); else vl->untag &= ~BIT(port); @@ -1149,7 +1149,7 @@ int b53_vlan_del(struct dsa_switch *ds, int port, pvid = 0; } - if (untagged) + if (untagged && !dsa_is_cpu_port(ds, port)) vl->untag &= ~(BIT(port)); b53_set_vlan_entry(dev, vid, vl); From 9d2f67e43b73e8af7438be219b66a5de0cfa8bd9 Mon Sep 17 00:00:00 2001 From: Jianfeng Tan Date: Sat, 29 Sep 2018 15:41:27 +0000 Subject: [PATCH 1583/1762] net/packet: fix packet drop as of virtio gso When we use raw socket as the vhost backend, a packet from virito with gso offloading information, cannot be sent out in later validaton at xmit path, as we did not set correct skb->protocol which is further used for looking up the gso function. To fix this, we set this field according to virito hdr information. Fixes: e858fae2b0b8f4 ("virtio_net: use common code for virtio_net_hdr and skb GSO conversion") Signed-off-by: Jianfeng Tan Signed-off-by: David S. Miller --- include/linux/virtio_net.h | 18 ++++++++++++++++++ net/packet/af_packet.c | 11 +++++++---- 2 files changed, 25 insertions(+), 4 deletions(-) diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h index 9397628a1967..cb462f9ab7dd 100644 --- a/include/linux/virtio_net.h +++ b/include/linux/virtio_net.h @@ -5,6 +5,24 @@ #include #include +static inline int virtio_net_hdr_set_proto(struct sk_buff *skb, + const struct virtio_net_hdr *hdr) +{ + switch (hdr->gso_type & ~VIRTIO_NET_HDR_GSO_ECN) { + case VIRTIO_NET_HDR_GSO_TCPV4: + case VIRTIO_NET_HDR_GSO_UDP: + skb->protocol = cpu_to_be16(ETH_P_IP); + break; + case VIRTIO_NET_HDR_GSO_TCPV6: + skb->protocol = cpu_to_be16(ETH_P_IPV6); + break; + default: + return -EINVAL; + } + + return 0; +} + static inline int virtio_net_hdr_to_skb(struct sk_buff *skb, const struct virtio_net_hdr *hdr, bool little_endian) diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 75c92a87e7b2..d6e94dc7e290 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -2715,10 +2715,12 @@ tpacket_error: } } - if (po->has_vnet_hdr && virtio_net_hdr_to_skb(skb, vnet_hdr, - vio_le())) { - tp_len = -EINVAL; - goto tpacket_error; + if (po->has_vnet_hdr) { + if (virtio_net_hdr_to_skb(skb, vnet_hdr, vio_le())) { + tp_len = -EINVAL; + goto tpacket_error; + } + virtio_net_hdr_set_proto(skb, vnet_hdr); } skb->destructor = tpacket_destruct_skb; @@ -2915,6 +2917,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) if (err) goto out_free; len += sizeof(vnet_hdr); + virtio_net_hdr_set_proto(skb, &vnet_hdr); } skb_probe_transport_header(skb, reserve); From e46368cf77f2cb6304c51d9ff5f147cfb7dc0074 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Fri, 14 Sep 2018 16:44:03 -0400 Subject: [PATCH 1584/1762] drm/nouveau/drm/nouveau: Grab runtime PM ref in nv50_mstc_detect() While we currently grab a runtime PM ref in nouveau's normal connector detection code, we apparently don't do this for MST. This means if we're in a scenario where the GPU is suspended and userspace attempts to do a connector probe on an MSTC connector, the probe will fail entirely due to the DP aux channel and GPU not being woken up: [ 316.633489] nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff [ 316.635713] nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff [ 316.637785] nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff ... So, grab a runtime PM ref here. Signed-off-by: Lyude Paul Cc: stable@vger.kernel.org Reviewed-by: Karol Herbst Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/dispnv50/disp.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index 5691dfa1db6f..041e7daf8a33 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -900,9 +900,22 @@ static enum drm_connector_status nv50_mstc_detect(struct drm_connector *connector, bool force) { struct nv50_mstc *mstc = nv50_mstc(connector); + enum drm_connector_status conn_status; + int ret; + if (!mstc->port) return connector_status_disconnected; - return drm_dp_mst_detect_port(connector, mstc->port->mgr, mstc->port); + + ret = pm_runtime_get_sync(connector->dev->dev); + if (ret < 0 && ret != -EACCES) + return connector_status_disconnected; + + conn_status = drm_dp_mst_detect_port(connector, mstc->port->mgr, + mstc->port); + + pm_runtime_mark_last_busy(connector->dev->dev); + pm_runtime_put_autosuspend(connector->dev->dev); + return conn_status; } static void From 2d52527e80c2dc0c5f43f50adf183781262ec565 Mon Sep 17 00:00:00 2001 From: Davide Caratti Date: Wed, 3 Oct 2018 15:20:58 +0200 Subject: [PATCH 1585/1762] be2net: don't flip hw_features when VXLANs are added/deleted the be2net implementation of .ndo_tunnel_{add,del}() changes the value of NETIF_F_GSO_UDP_TUNNEL bit in 'features' and 'hw_features', but it forgets to call netdev_features_change(). Moreover, ethtool setting for that bit can potentially be reverted after a tunnel is added or removed. GSO already does software segmentation when 'hw_enc_features' is 0, even if VXLAN offload is turned on. In addition, commit 096de2f83ebc ("benet: stricter vxlan offloading check in be_features_check") avoids hardware segmentation of non-VXLAN tunneled packets, or VXLAN packets having wrong destination port. So, it's safe to avoid flipping the above feature on addition/deletion of VXLAN tunnels. Fixes: 630f4b70567f ("be2net: Export tunnel offloads only when a VxLAN tunnel is created") Signed-off-by: Davide Caratti Signed-off-by: David S. Miller --- drivers/net/ethernet/emulex/benet/be_main.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 74d122616e76..534787291b44 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -4002,8 +4002,6 @@ static int be_enable_vxlan_offloads(struct be_adapter *adapter) netdev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_UDP_TUNNEL; - netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL; - netdev->features |= NETIF_F_GSO_UDP_TUNNEL; dev_info(dev, "Enabled VxLAN offloads for UDP port %d\n", be16_to_cpu(port)); @@ -4025,8 +4023,6 @@ static void be_disable_vxlan_offloads(struct be_adapter *adapter) adapter->vxlan_port = 0; netdev->hw_enc_features = 0; - netdev->hw_features &= ~(NETIF_F_GSO_UDP_TUNNEL); - netdev->features &= ~(NETIF_F_GSO_UDP_TUNNEL); } static void be_calculate_vf_res(struct be_adapter *adapter, u16 num_vfs, @@ -5320,6 +5316,7 @@ static void be_netdev_init(struct net_device *netdev) struct be_adapter *adapter = netdev_priv(netdev); netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | + NETIF_F_GSO_UDP_TUNNEL | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_TX; if ((be_if_cap_flags(adapter) & BE_IF_FLAGS_RSS)) From 7e4183752735deb7543e179a44f4f4b44917cd6f Mon Sep 17 00:00:00 2001 From: Baruch Siach Date: Wed, 3 Oct 2018 19:04:49 +0300 Subject: [PATCH 1586/1762] net: phy: phylink: fix SFP interface autodetection When connecting SFP PHY to phylink use the detected interface. Otherwise, the link fails to come up when the configured 'phy-mode' differs from the SFP detected mode. Move most of phylink_connect_phy() into __phylink_connect_phy(), and leave phylink_connect_phy() as a wrapper. phylink_sfp_connect_phy() can now pass the SFP detected PHY interface to __phylink_connect_phy(). This fixes 1GB SFP module link up on eth3 of the Macchiatobin board that is configured in the DT to "2500base-x" phy-mode. Fixes: 9525ae83959b6 ("phylink: add phylink infrastructure") Suggested-by: Russell King Signed-off-by: Baruch Siach Signed-off-by: David S. Miller --- drivers/net/phy/phylink.c | 48 +++++++++++++++++++++++---------------- 1 file changed, 28 insertions(+), 20 deletions(-) diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 3ba5cf2a8a5f..7abca86c3aa9 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -717,6 +717,30 @@ static int phylink_bringup_phy(struct phylink *pl, struct phy_device *phy) return 0; } +static int __phylink_connect_phy(struct phylink *pl, struct phy_device *phy, + phy_interface_t interface) +{ + int ret; + + if (WARN_ON(pl->link_an_mode == MLO_AN_FIXED || + (pl->link_an_mode == MLO_AN_INBAND && + phy_interface_mode_is_8023z(interface)))) + return -EINVAL; + + if (pl->phydev) + return -EBUSY; + + ret = phy_attach_direct(pl->netdev, phy, 0, interface); + if (ret) + return ret; + + ret = phylink_bringup_phy(pl, phy); + if (ret) + phy_detach(phy); + + return ret; +} + /** * phylink_connect_phy() - connect a PHY to the phylink instance * @pl: a pointer to a &struct phylink returned from phylink_create() @@ -734,31 +758,13 @@ static int phylink_bringup_phy(struct phylink *pl, struct phy_device *phy) */ int phylink_connect_phy(struct phylink *pl, struct phy_device *phy) { - int ret; - - if (WARN_ON(pl->link_an_mode == MLO_AN_FIXED || - (pl->link_an_mode == MLO_AN_INBAND && - phy_interface_mode_is_8023z(pl->link_interface)))) - return -EINVAL; - - if (pl->phydev) - return -EBUSY; - /* Use PHY device/driver interface */ if (pl->link_interface == PHY_INTERFACE_MODE_NA) { pl->link_interface = phy->interface; pl->link_config.interface = pl->link_interface; } - ret = phy_attach_direct(pl->netdev, phy, 0, pl->link_interface); - if (ret) - return ret; - - ret = phylink_bringup_phy(pl, phy); - if (ret) - phy_detach(phy); - - return ret; + return __phylink_connect_phy(pl, phy, pl->link_interface); } EXPORT_SYMBOL_GPL(phylink_connect_phy); @@ -1672,7 +1678,9 @@ static void phylink_sfp_link_up(void *upstream) static int phylink_sfp_connect_phy(void *upstream, struct phy_device *phy) { - return phylink_connect_phy(upstream, phy); + struct phylink *pl = upstream; + + return __phylink_connect_phy(upstream, phy, pl->link_config.interface); } static void phylink_sfp_disconnect_phy(void *upstream) From b3e9b515b08e407ab3a026dc2e4d935c48d05f69 Mon Sep 17 00:00:00 2001 From: "Singh, Brijesh" Date: Thu, 4 Oct 2018 21:40:23 +0000 Subject: [PATCH 1587/1762] iommu/amd: Clear memory encryption mask from physical address MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Boris Ostrovsky reported a memory leak with device passthrough when SME is active. The VFIO driver uses iommu_iova_to_phys() to get the physical address for an iova. This physical address is later passed into vfio_unmap_unpin() to unpin the memory. The vfio_unmap_unpin() uses pfn_valid() before unpinning the memory. The pfn_valid() check was failing because encryption mask was part of the physical address returned. This resulted in the memory not being unpinned and therefore leaked after the guest terminates. The memory encryption mask must be cleared from the physical address in iommu_iova_to_phys(). Fixes: 2543a786aa25 ("iommu/amd: Allow the AMD IOMMU to work with memory encryption") Reported-by: Boris Ostrovsky Cc: Tom Lendacky Cc: Joerg Roedel Cc: Cc: Borislav Petkov Cc: Paolo Bonzini Cc: Radim Krčmář Cc: kvm@vger.kernel.org Cc: Boris Ostrovsky Cc: # 4.14+ Signed-off-by: Brijesh Singh Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 73e47d93e7a0..bee0dfb7b93b 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -3069,7 +3069,7 @@ static phys_addr_t amd_iommu_iova_to_phys(struct iommu_domain *dom, return 0; offset_mask = pte_pgsize - 1; - __pte = *pte & PM_ADDR_MASK; + __pte = __sme_clr(*pte & PM_ADDR_MASK); return (__pte & ~offset_mask) | (iova & offset_mask); } From 0d41e1d28c2e969094ef7933b8521f1e08d30251 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Fri, 5 Oct 2018 19:04:22 +1000 Subject: [PATCH 1588/1762] xfs: refactor clonerange preparation into a separate helper Refactor all the reflink preparation steps into a separate helper that we'll use to land all the upcoming fixes for insufficient input checks. This rework also moves the invalidation of the destination range to the prep function so that it is done before the range is remapped. This ensures that nobody can access the data in range being remapped until the remap is complete. [dgc: fix xfs_reflink_remap_prep() return value and caller check to handle vfs_clone_file_prep_inodes() returning 0 to mean "nothing to do". ] [dgc: make sure length changed by vfs_clone_file_prep_inodes() gets propagated back to XFS code that does the remapping. ] Signed-off-by: Darrick J. Wong Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- fs/xfs/xfs_reflink.c | 100 +++++++++++++++++++++++++++++++------------ 1 file changed, 73 insertions(+), 27 deletions(-) diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index 5289e22cb081..da1a447bef51 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -1220,35 +1220,47 @@ retry: return 0; } +/* Unlock both inodes after they've been prepped for a range clone. */ +STATIC void +xfs_reflink_remap_unlock( + struct file *file_in, + struct file *file_out) +{ + struct inode *inode_in = file_inode(file_in); + struct xfs_inode *src = XFS_I(inode_in); + struct inode *inode_out = file_inode(file_out); + struct xfs_inode *dest = XFS_I(inode_out); + bool same_inode = (inode_in == inode_out); + + xfs_iunlock(dest, XFS_MMAPLOCK_EXCL); + if (!same_inode) + xfs_iunlock(src, XFS_MMAPLOCK_SHARED); + inode_unlock(inode_out); + if (!same_inode) + inode_unlock_shared(inode_in); +} + /* - * Link a range of blocks from one file to another. + * Prepare two files for range cloning. Upon a successful return both inodes + * will have the iolock and mmaplock held, the page cache of the out file + * will be truncated, and any leases on the out file will have been broken. */ -int -xfs_reflink_remap_range( +STATIC int +xfs_reflink_remap_prep( struct file *file_in, loff_t pos_in, struct file *file_out, loff_t pos_out, - u64 len, + u64 *len, bool is_dedupe) { struct inode *inode_in = file_inode(file_in); struct xfs_inode *src = XFS_I(inode_in); struct inode *inode_out = file_inode(file_out); struct xfs_inode *dest = XFS_I(inode_out); - struct xfs_mount *mp = src->i_mount; bool same_inode = (inode_in == inode_out); - xfs_fileoff_t sfsbno, dfsbno; - xfs_filblks_t fsblen; - xfs_extlen_t cowextsize; ssize_t ret; - if (!xfs_sb_version_hasreflink(&mp->m_sb)) - return -EOPNOTSUPP; - - if (XFS_FORCED_SHUTDOWN(mp)) - return -EIO; - /* Lock both files against IO */ ret = xfs_iolock_two_inodes_and_break_layout(inode_in, inode_out); if (ret) @@ -1270,7 +1282,7 @@ xfs_reflink_remap_range( goto out_unlock; ret = vfs_clone_file_prep_inodes(inode_in, pos_in, inode_out, pos_out, - &len, is_dedupe); + len, is_dedupe); if (ret <= 0) goto out_unlock; @@ -1279,8 +1291,6 @@ xfs_reflink_remap_range( if (ret) goto out_unlock; - trace_xfs_reflink_remap_range(src, pos_in, len, dest, pos_out); - /* * Clear out post-eof preallocations because we don't have page cache * backing the delayed allocations and they'll never get freed on @@ -1297,6 +1307,51 @@ xfs_reflink_remap_range( if (ret) goto out_unlock; + /* Zap any page cache for the destination file's range. */ + truncate_inode_pages_range(&inode_out->i_data, pos_out, + PAGE_ALIGN(pos_out + *len) - 1); + return 1; +out_unlock: + xfs_reflink_remap_unlock(file_in, file_out); + return ret; +} + +/* + * Link a range of blocks from one file to another. + */ +int +xfs_reflink_remap_range( + struct file *file_in, + loff_t pos_in, + struct file *file_out, + loff_t pos_out, + u64 len, + bool is_dedupe) +{ + struct inode *inode_in = file_inode(file_in); + struct xfs_inode *src = XFS_I(inode_in); + struct inode *inode_out = file_inode(file_out); + struct xfs_inode *dest = XFS_I(inode_out); + struct xfs_mount *mp = src->i_mount; + xfs_fileoff_t sfsbno, dfsbno; + xfs_filblks_t fsblen; + xfs_extlen_t cowextsize; + ssize_t ret; + + if (!xfs_sb_version_hasreflink(&mp->m_sb)) + return -EOPNOTSUPP; + + if (XFS_FORCED_SHUTDOWN(mp)) + return -EIO; + + /* Prepare and then clone file data. */ + ret = xfs_reflink_remap_prep(file_in, pos_in, file_out, pos_out, + &len, is_dedupe); + if (ret <= 0) + return ret; + + trace_xfs_reflink_remap_range(src, pos_in, len, dest, pos_out); + dfsbno = XFS_B_TO_FSBT(mp, pos_out); sfsbno = XFS_B_TO_FSBT(mp, pos_in); fsblen = XFS_B_TO_FSB(mp, len); @@ -1305,10 +1360,6 @@ xfs_reflink_remap_range( if (ret) goto out_unlock; - /* Zap any page cache for the destination file's range. */ - truncate_inode_pages_range(&inode_out->i_data, pos_out, - PAGE_ALIGN(pos_out + len) - 1); - /* * Carry the cowextsize hint from src to dest if we're sharing the * entire source file to the entire destination file, the source file @@ -1325,12 +1376,7 @@ xfs_reflink_remap_range( is_dedupe); out_unlock: - xfs_iunlock(dest, XFS_MMAPLOCK_EXCL); - if (!same_inode) - xfs_iunlock(src, XFS_MMAPLOCK_SHARED); - inode_unlock(inode_out); - if (!same_inode) - inode_unlock_shared(inode_in); + xfs_reflink_remap_unlock(file_in, file_out); if (ret) trace_xfs_reflink_remap_range_error(dest, ret, _RET_IP_); return ret; From 410fdc72b05afabef3afb51167085799dcc7b3cf Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Fri, 5 Oct 2018 19:04:27 +1000 Subject: [PATCH 1589/1762] xfs: zero posteof blocks when cloning above eof When we're reflinking between two files and the destination file range is well beyond the destination file's EOF marker, zero any posteof speculative preallocations in the destination file so that we don't expose stale disk contents. The previous strategy of trying to clear the preallocations does not work if the destination file has the PREALLOC flag set. Uncovered by shared/010. Reported-by: Zorro Lang Bugzilla-id: https://bugzilla.kernel.org/show_bug.cgi?id=201259 Signed-off-by: Darrick J. Wong Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- fs/xfs/xfs_reflink.c | 33 +++++++++++++++++++++++++-------- 1 file changed, 25 insertions(+), 8 deletions(-) diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index da1a447bef51..f135748d8282 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -1240,6 +1240,26 @@ xfs_reflink_remap_unlock( inode_unlock_shared(inode_in); } +/* + * If we're reflinking to a point past the destination file's EOF, we must + * zero any speculative post-EOF preallocations that sit between the old EOF + * and the destination file offset. + */ +static int +xfs_reflink_zero_posteof( + struct xfs_inode *ip, + loff_t pos) +{ + loff_t isize = i_size_read(VFS_I(ip)); + + if (pos <= isize) + return 0; + + trace_xfs_zero_eof(ip, isize, pos - isize); + return iomap_zero_range(VFS_I(ip), isize, pos - isize, NULL, + &xfs_iomap_ops); +} + /* * Prepare two files for range cloning. Upon a successful return both inodes * will have the iolock and mmaplock held, the page cache of the out file @@ -1292,15 +1312,12 @@ xfs_reflink_remap_prep( goto out_unlock; /* - * Clear out post-eof preallocations because we don't have page cache - * backing the delayed allocations and they'll never get freed on - * their own. + * Zero existing post-eof speculative preallocations in the destination + * file. */ - if (xfs_can_free_eofblocks(dest, true)) { - ret = xfs_free_eofblocks(dest); - if (ret) - goto out_unlock; - } + ret = xfs_reflink_zero_posteof(dest, pos_out); + if (ret) + goto out_unlock; /* Set flags and remap blocks. */ ret = xfs_reflink_set_inode_flag(src, dest); From 7debbf015f580693680f3d2a3cef0cf99dcef688 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Fri, 5 Oct 2018 19:05:41 +1000 Subject: [PATCH 1590/1762] xfs: update ctime and remove suid before cloning files Before cloning into a file, update the ctime and remove sensitive attributes like suid, just like we'd do for a regular file write. Signed-off-by: Darrick J. Wong Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- fs/xfs/xfs_reflink.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index f135748d8282..59da9708e9c1 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -1264,6 +1264,7 @@ xfs_reflink_zero_posteof( * Prepare two files for range cloning. Upon a successful return both inodes * will have the iolock and mmaplock held, the page cache of the out file * will be truncated, and any leases on the out file will have been broken. + * This function borrows heavily from xfs_file_aio_write_checks. */ STATIC int xfs_reflink_remap_prep( @@ -1327,6 +1328,30 @@ xfs_reflink_remap_prep( /* Zap any page cache for the destination file's range. */ truncate_inode_pages_range(&inode_out->i_data, pos_out, PAGE_ALIGN(pos_out + *len) - 1); + + /* If we're altering the file contents... */ + if (!is_dedupe) { + /* + * ...update the timestamps (which will grab the ilock again + * from xfs_fs_dirty_inode, so we have to call it before we + * take the ilock). + */ + if (!(file_out->f_mode & FMODE_NOCMTIME)) { + ret = file_update_time(file_out); + if (ret) + goto out_unlock; + } + + /* + * ...clear the security bits if the process is not being run + * by root. This keeps people from modifying setuid and setgid + * binaries. + */ + ret = file_remove_privs(file_out); + if (ret) + goto out_unlock; + } + return 1; out_unlock: xfs_reflink_remap_unlock(file_in, file_out); From 7e29317928bd79a03a9c35816afa709988b5d31b Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 4 Oct 2018 20:30:02 +0200 Subject: [PATCH 1591/1762] ASoC: adau1761: Use the standard fall-through annotation As a preparatory patch for the upcoming -Wimplicit-fallthrough compiler checks, replace with the standard "fall through" annotation at the right place. It has to be put right before the next label. Signed-off-by: Takashi Iwai Signed-off-by: Mark Brown --- sound/soc/codecs/adau1761.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/adau1761.c b/sound/soc/codecs/adau1761.c index be136e981653..bef3e9e74c26 100644 --- a/sound/soc/codecs/adau1761.c +++ b/sound/soc/codecs/adau1761.c @@ -518,7 +518,8 @@ static int adau1761_setup_digmic_jackdetect(struct snd_soc_component *component) ARRAY_SIZE(adau1761_jack_detect_controls)); if (ret) return ret; - case ADAU1761_DIGMIC_JACKDET_PIN_MODE_NONE: /* fallthrough */ + /* fall through */ + case ADAU1761_DIGMIC_JACKDET_PIN_MODE_NONE: ret = snd_soc_dapm_add_routes(dapm, adau1761_no_dmic_routes, ARRAY_SIZE(adau1761_no_dmic_routes)); if (ret) From 641f7f2195735b4fe93b541ea3a792fe4fee2415 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 4 Oct 2018 20:30:03 +0200 Subject: [PATCH 1592/1762] ASoC: pcm186x: Use the standard fall-through annotation As a preparatory patch for the upcoming -Wimplicit-fallthrough compiler checks, replace with the standard "fall through" annotation. Unfortunately gcc doesn't understand the mixed comment lines. Signed-off-by: Takashi Iwai Signed-off-by: Mark Brown --- sound/soc/codecs/pcm186x.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/pcm186x.c b/sound/soc/codecs/pcm186x.c index 690c26e7389e..809b7e9f03ca 100644 --- a/sound/soc/codecs/pcm186x.c +++ b/sound/soc/codecs/pcm186x.c @@ -401,7 +401,8 @@ static int pcm186x_set_fmt(struct snd_soc_dai *dai, unsigned int format) break; case SND_SOC_DAIFMT_DSP_A: priv->tdm_offset += 1; - /* Fall through... DSP_A uses the same basic config as DSP_B + /* fall through */ + /* DSP_A uses the same basic config as DSP_B * except we need to shift the TDM output by one BCK cycle */ case SND_SOC_DAIFMT_DSP_B: From 0beeb4baf56bd9deb920712a4034541fb33bbbe0 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 4 Oct 2018 20:30:04 +0200 Subject: [PATCH 1593/1762] ASoC: rt274: Add fall-through annotations As a preparatory patch for the upcoming -Wimplicit-fallthrough compiler checks, add the "fall through" annotations in rt274 driver. Signed-off-by: Takashi Iwai Signed-off-by: Mark Brown --- sound/soc/codecs/rt274.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/codecs/rt274.c b/sound/soc/codecs/rt274.c index d88e67341083..0ef966d56bac 100644 --- a/sound/soc/codecs/rt274.c +++ b/sound/soc/codecs/rt274.c @@ -755,6 +755,7 @@ static int rt274_set_dai_pll(struct snd_soc_dai *dai, int pll_id, int source, break; default: dev_warn(component->dev, "invalid pll source, use BCLK\n"); + /* fall through */ case RT274_PLL2_S_BCLK: snd_soc_component_update_bits(component, RT274_PLL2_CTRL, RT274_PLL2_SRC_MASK, RT274_PLL2_SRC_BCLK); @@ -782,6 +783,7 @@ static int rt274_set_dai_pll(struct snd_soc_dai *dai, int pll_id, int source, break; default: dev_warn(component->dev, "invalid freq_in, assume 4.8M\n"); + /* fall through */ case 100: snd_soc_component_write(component, 0x7a, 0xaab6); snd_soc_component_write(component, 0x7b, 0x0301); From e4bfd61571f5db5c69a7a49de401543cc7d6c87c Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 4 Oct 2018 20:30:05 +0200 Subject: [PATCH 1594/1762] ASoC: intel: skylake: Add fall-through annotation As a preparatory patch for the upcoming -Wimplicit-fallthrough compiler checks, add the "fall through" annotation in Intel SST skylake driver. Signed-off-by: Takashi Iwai Signed-off-by: Mark Brown --- sound/soc/intel/skylake/skl-pcm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c index 00b7a91b18c9..557f80c0bfe5 100644 --- a/sound/soc/intel/skylake/skl-pcm.c +++ b/sound/soc/intel/skylake/skl-pcm.c @@ -495,6 +495,7 @@ static int skl_pcm_trigger(struct snd_pcm_substream *substream, int cmd, stream->lpib); snd_hdac_ext_stream_set_lpib(stream, stream->lpib); } + /* fall through */ case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: From 9c6c4d961e634413add345ee030e108e6d19cea2 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 4 Oct 2018 20:30:06 +0200 Subject: [PATCH 1595/1762] ASoC: topology: Use the standard fall-through annotations As a preparatory patch for the upcoming -Wimplicit-fallthrough compiler checks, replace with the standard "fall through" annotation. gcc can't understand the mixed texts, unfortunately. Signed-off-by: Takashi Iwai Signed-off-by: Mark Brown --- sound/soc/soc-topology.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c index 17f81b9a5754..045ef136903d 100644 --- a/sound/soc/soc-topology.c +++ b/sound/soc/soc-topology.c @@ -993,7 +993,7 @@ static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count, kfree(se); continue; } - /* fall through and create texts */ + /* fall through */ case SND_SOC_TPLG_CTL_ENUM: case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: @@ -1310,7 +1310,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create( ec->hdr.name); goto err_se; } - /* fall through to create texts */ + /* fall through */ case SND_SOC_TPLG_CTL_ENUM: case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: From 9ce7610e6d201e3923c0b2f454f2e1d54f5da49e Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Mon, 1 Oct 2018 14:49:05 +0300 Subject: [PATCH 1596/1762] i2c: designware: Call i2c_dw_clk_rate() only when calculating timings There are platforms which don't provide input clock rate but provide I2C timing parameters. Commit 3bd4f277274b ("i2c: designware: Call i2c_dw_clk_rate() only once in i2c_dw_init_master()") causes needless warning during probe on those platforms since i2c_dw_clk_rate(), which causes the warning when input clock is unknown, is called even when there is no need to calculate timing parameters. Fixes: 3bd4f277274b ("i2c: designware: Call i2c_dw_clk_rate() only once in i2c_dw_init_master()") Reported-by: Ard Biesheuvel Cc: # 4.19 Signed-off-by: Jarkko Nikula Tested-by: Ard Biesheuvel Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-designware-master.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index 94d94b4a9a0d..18cc324f3ca9 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -34,11 +34,11 @@ static void i2c_dw_configure_fifo_master(struct dw_i2c_dev *dev) static int i2c_dw_set_timings_master(struct dw_i2c_dev *dev) { - u32 ic_clk = i2c_dw_clk_rate(dev); const char *mode_str, *fp_str = ""; u32 comp_param1; u32 sda_falling_time, scl_falling_time; struct i2c_timings *t = &dev->timings; + u32 ic_clk; int ret; ret = i2c_dw_acquire_lock(dev); @@ -53,6 +53,7 @@ static int i2c_dw_set_timings_master(struct dw_i2c_dev *dev) /* Calculate SCL timing parameters for standard mode if not set */ if (!dev->ss_hcnt || !dev->ss_lcnt) { + ic_clk = i2c_dw_clk_rate(dev); dev->ss_hcnt = i2c_dw_scl_hcnt(ic_clk, 4000, /* tHD;STA = tHIGH = 4.0 us */ @@ -89,6 +90,7 @@ static int i2c_dw_set_timings_master(struct dw_i2c_dev *dev) * needed also in high speed mode. */ if (!dev->fs_hcnt || !dev->fs_lcnt) { + ic_clk = i2c_dw_clk_rate(dev); dev->fs_hcnt = i2c_dw_scl_hcnt(ic_clk, 600, /* tHD;STA = tHIGH = 0.6 us */ From d5a5dcd3f815c82e719fd6563f027673160f88e1 Mon Sep 17 00:00:00 2001 From: Alexandru Ardelean Date: Tue, 2 Oct 2018 15:06:30 +0300 Subject: [PATCH 1597/1762] ASoC: dt-bindings: add dt bindings for adau1977 audio codec Add device-tree bindings documentation file for ADAU1977 audio codec. This describes device-tree fields that are already supported by the driver. The driver supports both I2C AND and SPI, and this doc covers both aspects of the DT configuration. Signed-off-by: Alexandru Ardelean Signed-off-by: Mark Brown --- .../bindings/sound/adi,adau1977.txt | 54 +++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/adi,adau1977.txt diff --git a/Documentation/devicetree/bindings/sound/adi,adau1977.txt b/Documentation/devicetree/bindings/sound/adi,adau1977.txt new file mode 100644 index 000000000000..e79aeef73f28 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/adi,adau1977.txt @@ -0,0 +1,54 @@ +Analog Devices ADAU1977/ADAU1978/ADAU1979 + +Datasheets: +http://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1977.pdf +http://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1978.pdf +http://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1979.pdf + +This driver supports both the I2C and SPI bus. + +Required properties: + - compatible: Should contain one of the following: + "adi,adau1977" + "adi,adau1978" + "adi,adau1979" + + - AVDD-supply: analog power supply for the device, please consult + Documentation/devicetree/bindings/regulator/regulator.txt + +Optional properties: + - reset-gpio: the reset pin for the chip, for more details consult + Documentation/devicetree/bindings/gpio/gpio.txt + + - DVDD-supply: supply voltage for the digital core, please consult + Documentation/devicetree/bindings/regulator/regulator.txt + +For required properties on SPI, please consult +Documentation/devicetree/bindings/spi/spi-bus.txt + +Required properties on I2C: + + - reg: The i2c address. Value depends on the state of ADDR0 + and ADDR1, as wired in hardware. + +Examples: + + adau1977_spi: adau1977@0 { + compatible = "adi,adau1977"; + spi-max-frequency = <600000>; + + AVDD-supply = <®ulator>; + DVDD-supply = <®ulator_digital>; + + reset_gpio = <&gpio 10 GPIO_ACTIVE_LOW>; + }; + + adau1977_i2c: adau1977@11 { + compatible = "adi,adau1977"; + reg = <0x11>; + + AVDD-supply = <®ulator>; + DVDD-supply = <®ulator_digital>; + + reset_gpio = <&gpio 10 GPIO_ACTIVE_LOW>; + }; From a932ed3b718147c6537da290b7a91e990fdedb43 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Fri, 5 Oct 2018 16:43:55 +1000 Subject: [PATCH 1598/1762] powerpc: Don't print kernel instructions in show_user_instructions() Recently we implemented show_user_instructions() which dumps the code around the NIP when a user space process dies with an unhandled signal. This was modelled on the x86 code, and we even went so far as to implement the exact same bug, namely that if the user process crashed with its NIP pointing into the kernel we will dump kernel text to dmesg. eg: bad-bctr[2996]: segfault (11) at c000000000010000 nip c000000000010000 lr 12d0b0894 code 1 bad-bctr[2996]: code: fbe10068 7cbe2b78 7c7f1b78 fb610048 38a10028 38810020 fb810050 7f8802a6 bad-bctr[2996]: code: 3860001c f8010080 48242371 60000000 <7c7b1b79> 4082002c e8010080 eb610048 This was discovered on x86 by Jann Horn and fixed in commit 342db04ae712 ("x86/dumpstack: Don't dump kernel memory based on usermode RIP"). Fix it by checking the adjusted NIP value (pc) and number of instructions against USER_DS, and bail if we fail the check, eg: bad-bctr[2969]: segfault (11) at c000000000010000 nip c000000000010000 lr 107930894 code 1 bad-bctr[2969]: Bad NIP, not dumping instructions. Fixes: 88b0fe175735 ("powerpc: Add show_user_instructions()") Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/process.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 913c5725cdb2..bb6ac471a784 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1306,6 +1306,16 @@ void show_user_instructions(struct pt_regs *regs) pc = regs->nip - (instructions_to_print * 3 / 4 * sizeof(int)); + /* + * Make sure the NIP points at userspace, not kernel text/data or + * elsewhere. + */ + if (!__access_ok(pc, instructions_to_print * sizeof(int), USER_DS)) { + pr_info("%s[%d]: Bad NIP, not dumping instructions.\n", + current->comm, current->pid); + return; + } + pr_info("%s[%d]: code: ", current->comm, current->pid); for (i = 0; i < instructions_to_print; i++) { From ac1788cc7da4ce54edcfd2e499afdb0a23d5c41d Mon Sep 17 00:00:00 2001 From: Srikar Dronamraju Date: Fri, 28 Sep 2018 09:17:32 +0530 Subject: [PATCH 1599/1762] powerpc/numa: Skip onlining a offline node in kdump path With commit 2ea626306810 ("powerpc/topology: Get topology for shared processors at boot"), kdump kernel on shared LPAR may crash. The necessary conditions are - Shared LPAR with at least 2 nodes having memory and CPUs. - Memory requirement for kdump kernel must be met by the first N-1 nodes where there are at least N nodes with memory and CPUs. Example numactl of such a machine. $ numactl -H available: 5 nodes (0,2,5-7) node 0 cpus: node 0 size: 0 MB node 0 free: 0 MB node 2 cpus: node 2 size: 255 MB node 2 free: 189 MB node 5 cpus: 24 25 26 27 28 29 30 31 node 5 size: 4095 MB node 5 free: 4024 MB node 6 cpus: 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23 node 6 size: 6353 MB node 6 free: 5998 MB node 7 cpus: 8 9 10 11 12 13 14 15 32 33 34 35 36 37 38 39 node 7 size: 7640 MB node 7 free: 7164 MB node distances: node 0 2 5 6 7 0: 10 40 40 40 40 2: 40 10 40 40 40 5: 40 40 10 40 40 6: 40 40 40 10 20 7: 40 40 40 20 10 Steps to reproduce. 1. Load / start kdump service. 2. Trigger a kdump (for example : echo c > /proc/sysrq-trigger) When booting a kdump kernel with 2048M: kexec: Starting switchover sequence. I'm in purgatory Using 1TB segments hash-mmu: Initializing hash mmu with SLB Linux version 4.19.0-rc5-master+ (srikar@linux-xxu6) (gcc version 4.8.5 (SUSE Linux)) #1 SMP Thu Sep 27 19:45:00 IST 2018 Found initrd at 0xc000000009e70000:0xc00000000ae554b4 Using pSeries machine description ----------------------------------------------------- ppc64_pft_size = 0x1e phys_mem_size = 0x88000000 dcache_bsize = 0x80 icache_bsize = 0x80 cpu_features = 0x000000ff8f5d91a7 possible = 0x0000fbffcf5fb1a7 always = 0x0000006f8b5c91a1 cpu_user_features = 0xdc0065c2 0xef000000 mmu_features = 0x7c006001 firmware_features = 0x00000007c45bfc57 htab_hash_mask = 0x7fffff physical_start = 0x8000000 ----------------------------------------------------- numa: NODE_DATA [mem 0x87d5e300-0x87d67fff] numa: NODE_DATA(0) on node 6 numa: NODE_DATA [mem 0x87d54600-0x87d5e2ff] Top of RAM: 0x88000000, Total RAM: 0x88000000 Memory hole size: 0MB Zone ranges: DMA [mem 0x0000000000000000-0x0000000087ffffff] DMA32 empty Normal empty Movable zone start for each node Early memory node ranges node 6: [mem 0x0000000000000000-0x0000000087ffffff] Could not find start_pfn for node 0 Initmem setup node 0 [mem 0x0000000000000000-0x0000000000000000] On node 0 totalpages: 0 Initmem setup node 6 [mem 0x0000000000000000-0x0000000087ffffff] On node 6 totalpages: 34816 Unable to handle kernel paging request for data at address 0x00000060 Faulting instruction address: 0xc000000008703a54 Oops: Kernel access of bad area, sig: 11 [#1] LE SMP NR_CPUS=2048 NUMA pSeries Modules linked in: CPU: 11 PID: 1 Comm: swapper/11 Not tainted 4.19.0-rc5-master+ #1 NIP: c000000008703a54 LR: c000000008703a38 CTR: 0000000000000000 REGS: c00000000b673440 TRAP: 0380 Not tainted (4.19.0-rc5-master+) MSR: 8000000002009033 CR: 24022022 XER: 20000002 CFAR: c0000000086fc238 IRQMASK: 0 GPR00: c000000008703a38 c00000000b6736c0 c000000009281900 0000000000000000 GPR04: 0000000000000000 0000000000000000 fffffffffffff001 c00000000b660080 GPR08: 0000000000000000 0000000000000000 0000000000000000 0000000000000220 GPR12: 0000000000002200 c000000009e51400 0000000000000000 0000000000000008 GPR16: 0000000000000000 c000000008c152e8 c000000008c152a8 0000000000000000 GPR20: c000000009422fd8 c000000009412fd8 c000000009426040 0000000000000008 GPR24: 0000000000000000 0000000000000000 c000000009168bc8 c000000009168c78 GPR28: c00000000b126410 0000000000000000 c00000000916a0b8 c00000000b126400 NIP [c000000008703a54] bus_add_device+0x84/0x1e0 LR [c000000008703a38] bus_add_device+0x68/0x1e0 Call Trace: [c00000000b6736c0] [c000000008703a38] bus_add_device+0x68/0x1e0 (unreliable) [c00000000b673740] [c000000008700194] device_add+0x454/0x7c0 [c00000000b673800] [c00000000872e660] __register_one_node+0xb0/0x240 [c00000000b673860] [c00000000839a6bc] __try_online_node+0x12c/0x180 [c00000000b673900] [c00000000839b978] try_online_node+0x58/0x90 [c00000000b673930] [c0000000080846d8] find_and_online_cpu_nid+0x158/0x190 [c00000000b673a10] [c0000000080848a0] numa_update_cpu_topology+0x190/0x580 [c00000000b673c00] [c000000008d3f2e4] smp_cpus_done+0x94/0x108 [c00000000b673c70] [c000000008d5c00c] smp_init+0x174/0x19c [c00000000b673d00] [c000000008d346b8] kernel_init_freeable+0x1e0/0x450 [c00000000b673dc0] [c0000000080102e8] kernel_init+0x28/0x160 [c00000000b673e30] [c00000000800b65c] ret_from_kernel_thread+0x5c/0x80 Instruction dump: 60000000 60000000 e89e0020 7fe3fb78 4bff87d5 60000000 7c7d1b79 4082008c e8bf0050 e93e0098 3b9f0010 2fa50000 38630018 419e0114 7f84e378 ---[ end trace 593577668c2daa65 ]--- However a regular kernel with 4096M (2048 gets reserved for crash kernel) boots properly. Unlike regular kernels, which mark all available nodes as online, kdump kernel only marks just enough nodes as online and marks the rest as offline at boot. However kdump kernel boots with all available CPUs. With Commit 2ea626306810 ("powerpc/topology: Get topology for shared processors at boot"), all CPUs are onlined on their respective nodes at boot time. try_online_node() tries to online the offline nodes but fails as all needed subsystems are not yet initialized. As part of fix, detect and skip early onlining of a offline node. Fixes: 2ea626306810 ("powerpc/topology: Get topology for shared processors at boot") Reported-by: Pavithra Prakash Signed-off-by: Srikar Dronamraju Tested-by: Hari Bathini Signed-off-by: Michael Ellerman --- arch/powerpc/mm/numa.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 59d07bd5374a..055b211b7126 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -1217,9 +1217,10 @@ int find_and_online_cpu_nid(int cpu) * Need to ensure that NODE_DATA is initialized for a node from * available memory (see memblock_alloc_try_nid). If unable to * init the node, then default to nearest node that has memory - * installed. + * installed. Skip onlining a node if the subsystems are not + * yet initialized. */ - if (try_online_node(new_nid)) + if (!topology_inited || try_online_node(new_nid)) new_nid = first_online_node; #else /* From 5e33a23ba4b56c109b732d57a0a76558a37d9ec5 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 5 Oct 2018 14:05:34 +0100 Subject: [PATCH 1600/1762] rxrpc: Fix some missed refs to init_net Fix some refs to init_net that should've been changed to the appropriate network namespace. Fixes: 2baec2c3f854 ("rxrpc: Support network namespacing") Signed-off-by: David Howells Acked-by: Paolo Abeni --- net/rxrpc/ar-internal.h | 10 ++++++---- net/rxrpc/call_accept.c | 2 +- net/rxrpc/call_object.c | 4 ++-- net/rxrpc/conn_client.c | 10 ++++++---- net/rxrpc/input.c | 4 ++-- net/rxrpc/peer_object.c | 28 +++++++++++++++++----------- 6 files changed, 34 insertions(+), 24 deletions(-) diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h index ef9554131434..63c43b3a2096 100644 --- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -891,8 +891,9 @@ extern unsigned long rxrpc_conn_idle_client_fast_expiry; extern struct idr rxrpc_client_conn_ids; void rxrpc_destroy_client_conn_ids(void); -int rxrpc_connect_call(struct rxrpc_call *, struct rxrpc_conn_parameters *, - struct sockaddr_rxrpc *, gfp_t); +int rxrpc_connect_call(struct rxrpc_sock *, struct rxrpc_call *, + struct rxrpc_conn_parameters *, struct sockaddr_rxrpc *, + gfp_t); void rxrpc_expose_client_call(struct rxrpc_call *); void rxrpc_disconnect_client_call(struct rxrpc_call *); void rxrpc_put_client_conn(struct rxrpc_connection *); @@ -1045,10 +1046,11 @@ void rxrpc_peer_keepalive_worker(struct work_struct *); */ struct rxrpc_peer *rxrpc_lookup_peer_rcu(struct rxrpc_local *, const struct sockaddr_rxrpc *); -struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *, +struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_sock *, struct rxrpc_local *, struct sockaddr_rxrpc *, gfp_t); struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *, gfp_t); -void rxrpc_new_incoming_peer(struct rxrpc_local *, struct rxrpc_peer *); +void rxrpc_new_incoming_peer(struct rxrpc_sock *, struct rxrpc_local *, + struct rxrpc_peer *); void rxrpc_destroy_all_peers(struct rxrpc_net *); struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *); struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *); diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c index 9c7f26d06a52..f55f67894465 100644 --- a/net/rxrpc/call_accept.c +++ b/net/rxrpc/call_accept.c @@ -287,7 +287,7 @@ static struct rxrpc_call *rxrpc_alloc_incoming_call(struct rxrpc_sock *rx, (peer_tail + 1) & (RXRPC_BACKLOG_MAX - 1)); - rxrpc_new_incoming_peer(local, peer); + rxrpc_new_incoming_peer(rx, local, peer); } /* Now allocate and set up the connection */ diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c index 799f75b6900d..0ca2c2dfd196 100644 --- a/net/rxrpc/call_object.c +++ b/net/rxrpc/call_object.c @@ -287,7 +287,7 @@ struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *rx, /* Set up or get a connection record and set the protocol parameters, * including channel number and call ID. */ - ret = rxrpc_connect_call(call, cp, srx, gfp); + ret = rxrpc_connect_call(rx, call, cp, srx, gfp); if (ret < 0) goto error; @@ -339,7 +339,7 @@ int rxrpc_retry_client_call(struct rxrpc_sock *rx, /* Set up or get a connection record and set the protocol parameters, * including channel number and call ID. */ - ret = rxrpc_connect_call(call, cp, srx, gfp); + ret = rxrpc_connect_call(rx, call, cp, srx, gfp); if (ret < 0) goto error; diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c index 8acf74fe24c0..521189f4b666 100644 --- a/net/rxrpc/conn_client.c +++ b/net/rxrpc/conn_client.c @@ -276,7 +276,8 @@ dont_reuse: * If we return with a connection, the call will be on its waiting list. It's * left to the caller to assign a channel and wake up the call. */ -static int rxrpc_get_client_conn(struct rxrpc_call *call, +static int rxrpc_get_client_conn(struct rxrpc_sock *rx, + struct rxrpc_call *call, struct rxrpc_conn_parameters *cp, struct sockaddr_rxrpc *srx, gfp_t gfp) @@ -289,7 +290,7 @@ static int rxrpc_get_client_conn(struct rxrpc_call *call, _enter("{%d,%lx},", call->debug_id, call->user_call_ID); - cp->peer = rxrpc_lookup_peer(cp->local, srx, gfp); + cp->peer = rxrpc_lookup_peer(rx, cp->local, srx, gfp); if (!cp->peer) goto error; @@ -683,7 +684,8 @@ out: * find a connection for a call * - called in process context with IRQs enabled */ -int rxrpc_connect_call(struct rxrpc_call *call, +int rxrpc_connect_call(struct rxrpc_sock *rx, + struct rxrpc_call *call, struct rxrpc_conn_parameters *cp, struct sockaddr_rxrpc *srx, gfp_t gfp) @@ -696,7 +698,7 @@ int rxrpc_connect_call(struct rxrpc_call *call, rxrpc_discard_expired_client_conns(&rxnet->client_conn_reaper); rxrpc_cull_active_client_conns(rxnet); - ret = rxrpc_get_client_conn(call, cp, srx, gfp); + ret = rxrpc_get_client_conn(rx, call, cp, srx, gfp); if (ret < 0) goto out; diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index 800f5b8a1baa..c5af9955665b 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -1156,12 +1156,12 @@ void rxrpc_data_ready(struct sock *udp_sk) /* we'll probably need to checksum it (didn't call sock_recvmsg) */ if (skb_checksum_complete(skb)) { rxrpc_free_skb(skb, rxrpc_skb_rx_freed); - __UDP_INC_STATS(&init_net, UDP_MIB_INERRORS, 0); + __UDP_INC_STATS(sock_net(udp_sk), UDP_MIB_INERRORS, 0); _leave(" [CSUM failed]"); return; } - __UDP_INC_STATS(&init_net, UDP_MIB_INDATAGRAMS, 0); + __UDP_INC_STATS(sock_net(udp_sk), UDP_MIB_INDATAGRAMS, 0); /* The UDP protocol already released all skb resources; * we are free to add our own data there. diff --git a/net/rxrpc/peer_object.c b/net/rxrpc/peer_object.c index 01a9febfa367..2d39eaf19620 100644 --- a/net/rxrpc/peer_object.c +++ b/net/rxrpc/peer_object.c @@ -153,8 +153,10 @@ struct rxrpc_peer *rxrpc_lookup_peer_rcu(struct rxrpc_local *local, * assess the MTU size for the network interface through which this peer is * reached */ -static void rxrpc_assess_MTU_size(struct rxrpc_peer *peer) +static void rxrpc_assess_MTU_size(struct rxrpc_sock *rx, + struct rxrpc_peer *peer) { + struct net *net = sock_net(&rx->sk); struct dst_entry *dst; struct rtable *rt; struct flowi fl; @@ -169,7 +171,7 @@ static void rxrpc_assess_MTU_size(struct rxrpc_peer *peer) switch (peer->srx.transport.family) { case AF_INET: rt = ip_route_output_ports( - &init_net, fl4, NULL, + net, fl4, NULL, peer->srx.transport.sin.sin_addr.s_addr, 0, htons(7000), htons(7001), IPPROTO_UDP, 0, 0); if (IS_ERR(rt)) { @@ -188,7 +190,7 @@ static void rxrpc_assess_MTU_size(struct rxrpc_peer *peer) sizeof(struct in6_addr)); fl6->fl6_dport = htons(7001); fl6->fl6_sport = htons(7000); - dst = ip6_route_output(&init_net, NULL, fl6); + dst = ip6_route_output(net, NULL, fl6); if (dst->error) { _leave(" [route err %d]", dst->error); return; @@ -240,10 +242,11 @@ struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *local, gfp_t gfp) /* * Initialise peer record. */ -static void rxrpc_init_peer(struct rxrpc_peer *peer, unsigned long hash_key) +static void rxrpc_init_peer(struct rxrpc_sock *rx, struct rxrpc_peer *peer, + unsigned long hash_key) { peer->hash_key = hash_key; - rxrpc_assess_MTU_size(peer); + rxrpc_assess_MTU_size(rx, peer); peer->mtu = peer->if_mtu; peer->rtt_last_req = ktime_get_real(); @@ -275,7 +278,8 @@ static void rxrpc_init_peer(struct rxrpc_peer *peer, unsigned long hash_key) /* * Set up a new peer. */ -static struct rxrpc_peer *rxrpc_create_peer(struct rxrpc_local *local, +static struct rxrpc_peer *rxrpc_create_peer(struct rxrpc_sock *rx, + struct rxrpc_local *local, struct sockaddr_rxrpc *srx, unsigned long hash_key, gfp_t gfp) @@ -287,7 +291,7 @@ static struct rxrpc_peer *rxrpc_create_peer(struct rxrpc_local *local, peer = rxrpc_alloc_peer(local, gfp); if (peer) { memcpy(&peer->srx, srx, sizeof(*srx)); - rxrpc_init_peer(peer, hash_key); + rxrpc_init_peer(rx, peer, hash_key); } _leave(" = %p", peer); @@ -299,14 +303,15 @@ static struct rxrpc_peer *rxrpc_create_peer(struct rxrpc_local *local, * since we've already done a search in the list from the non-reentrant context * (the data_ready handler) that is the only place we can add new peers. */ -void rxrpc_new_incoming_peer(struct rxrpc_local *local, struct rxrpc_peer *peer) +void rxrpc_new_incoming_peer(struct rxrpc_sock *rx, struct rxrpc_local *local, + struct rxrpc_peer *peer) { struct rxrpc_net *rxnet = local->rxnet; unsigned long hash_key; hash_key = rxrpc_peer_hash_key(local, &peer->srx); peer->local = local; - rxrpc_init_peer(peer, hash_key); + rxrpc_init_peer(rx, peer, hash_key); spin_lock(&rxnet->peer_hash_lock); hash_add_rcu(rxnet->peer_hash, &peer->hash_link, hash_key); @@ -317,7 +322,8 @@ void rxrpc_new_incoming_peer(struct rxrpc_local *local, struct rxrpc_peer *peer) /* * obtain a remote transport endpoint for the specified address */ -struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *local, +struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_sock *rx, + struct rxrpc_local *local, struct sockaddr_rxrpc *srx, gfp_t gfp) { struct rxrpc_peer *peer, *candidate; @@ -337,7 +343,7 @@ struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *local, /* The peer is not yet present in hash - create a candidate * for a new record and then redo the search. */ - candidate = rxrpc_create_peer(local, srx, hash_key, gfp); + candidate = rxrpc_create_peer(rx, local, srx, hash_key, gfp); if (!candidate) { _leave(" = NULL [nomem]"); return NULL; From 2cfa2271604bb26e75b828d38f357ed084464795 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 5 Oct 2018 14:05:35 +0100 Subject: [PATCH 1601/1762] rxrpc: Fix the data_ready handler Fix the rxrpc_data_ready() function to pick up all packets and to not miss any. There are two problems: (1) The sk_data_ready pointer on the UDP socket is set *after* it is bound. This means that it's open for business before we're ready to dequeue packets and there's a tiny window exists in which a packet can sneak onto the receive queue, but we never know about it. Fix this by setting the pointers on the socket prior to binding it. (2) skb_recv_udp() will return an error (such as ENETUNREACH) if there was an error on the transmission side, even though we set the sk_error_report hook. Because rxrpc_data_ready() returns immediately in such a case, it never actually removes its packet from the receive queue. Fix this by abstracting out the UDP dequeuing and checksumming into a separate function that keeps hammering on skb_recv_udp() until it returns -EAGAIN, passing the packets extracted to the remainder of the function. and two potential problems: (3) It might be possible in some circumstances or in the future for packets to be being added to the UDP receive queue whilst rxrpc is running consuming them, so the data_ready() handler might get called less often than once per packet. Allow for this by fully draining the queue on each call as (2). (4) If a packet fails the checksum check, the code currently returns after discarding the packet without checking for more. Allow for this by fully draining the queue on each call as (2). Fixes: 17926a79320a ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both") Signed-off-by: David Howells Acked-by: Paolo Abeni --- net/rxrpc/input.c | 68 ++++++++++++++++++++++------------------ net/rxrpc/local_object.c | 11 ++++--- 2 files changed, 44 insertions(+), 35 deletions(-) diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index c5af9955665b..c3114fa66c92 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -1121,7 +1121,7 @@ int rxrpc_extract_header(struct rxrpc_skb_priv *sp, struct sk_buff *skb) * shut down and the local endpoint from going away, thus sk_user_data will not * be cleared until this function returns. */ -void rxrpc_data_ready(struct sock *udp_sk) +void rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) { struct rxrpc_connection *conn; struct rxrpc_channel *chan; @@ -1130,39 +1130,11 @@ void rxrpc_data_ready(struct sock *udp_sk) struct rxrpc_local *local = udp_sk->sk_user_data; struct rxrpc_peer *peer = NULL; struct rxrpc_sock *rx = NULL; - struct sk_buff *skb; unsigned int channel; - int ret, skew = 0; + int skew = 0; _enter("%p", udp_sk); - ASSERT(!irqs_disabled()); - - skb = skb_recv_udp(udp_sk, 0, 1, &ret); - if (!skb) { - if (ret == -EAGAIN) - return; - _debug("UDP socket error %d", ret); - return; - } - - if (skb->tstamp == 0) - skb->tstamp = ktime_get_real(); - - rxrpc_new_skb(skb, rxrpc_skb_rx_received); - - _net("recv skb %p", skb); - - /* we'll probably need to checksum it (didn't call sock_recvmsg) */ - if (skb_checksum_complete(skb)) { - rxrpc_free_skb(skb, rxrpc_skb_rx_freed); - __UDP_INC_STATS(sock_net(udp_sk), UDP_MIB_INERRORS, 0); - _leave(" [CSUM failed]"); - return; - } - - __UDP_INC_STATS(sock_net(udp_sk), UDP_MIB_INDATAGRAMS, 0); - /* The UDP protocol already released all skb resources; * we are free to add our own data there. */ @@ -1181,6 +1153,8 @@ void rxrpc_data_ready(struct sock *udp_sk) } } + if (skb->tstamp == 0) + skb->tstamp = ktime_get_real(); trace_rxrpc_rx_packet(sp); switch (sp->hdr.type) { @@ -1398,3 +1372,37 @@ reject_packet: rxrpc_reject_packet(local, skb); _leave(" [badmsg]"); } + +void rxrpc_data_ready(struct sock *udp_sk) +{ + struct sk_buff *skb; + int ret; + + for (;;) { + skb = skb_recv_udp(udp_sk, 0, 1, &ret); + if (!skb) { + if (ret == -EAGAIN) + return; + + /* If there was a transmission failure, we get an error + * here that we need to ignore. + */ + _debug("UDP socket error %d", ret); + continue; + } + + rxrpc_new_skb(skb, rxrpc_skb_rx_received); + + /* we'll probably need to checksum it (didn't call sock_recvmsg) */ + if (skb_checksum_complete(skb)) { + rxrpc_free_skb(skb, rxrpc_skb_rx_freed); + __UDP_INC_STATS(sock_net(udp_sk), UDP_MIB_INERRORS, 0); + _debug("csum failed"); + continue; + } + + __UDP_INC_STATS(sock_net(udp_sk), UDP_MIB_INDATAGRAMS, 0); + + rxrpc_input_packet(udp_sk, skb); + } +} diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c index 94d234e9c685..30862f44c9f1 100644 --- a/net/rxrpc/local_object.c +++ b/net/rxrpc/local_object.c @@ -122,6 +122,12 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) return ret; } + /* set the socket up */ + sock = local->socket->sk; + sock->sk_user_data = local; + sock->sk_data_ready = rxrpc_data_ready; + sock->sk_error_report = rxrpc_error_report; + /* if a local address was supplied then bind it */ if (local->srx.transport_len > sizeof(sa_family_t)) { _debug("bind"); @@ -191,11 +197,6 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) BUG(); } - /* set the socket up */ - sock = local->socket->sk; - sock->sk_user_data = local; - sock->sk_data_ready = rxrpc_data_ready; - sock->sk_error_report = rxrpc_error_report; _leave(" = 0"); return 0; From 05a2f54679861deb188750ba2a70187000b2c71f Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 18 Sep 2018 16:08:02 -0300 Subject: [PATCH 1602/1762] perf python: Use -Wno-redundant-decls to build with PYTHON=python3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When building in ClearLinux using 'make PYTHON=python3' with gcc 8.2.1 it fails with: GEN /tmp/build/perf/python/perf.so In file included from /usr/include/python3.7m/Python.h:126, from /git/linux/tools/perf/util/python.c:2: /usr/include/python3.7m/import.h:58:24: error: redundant redeclaration of ‘_PyImport_AddModuleObject’ [-Werror=redundant-decls] PyAPI_FUNC(PyObject *) _PyImport_AddModuleObject(PyObject *, PyObject *); ^~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/python3.7m/import.h:47:24: note: previous declaration of ‘_PyImport_AddModuleObject’ was here PyAPI_FUNC(PyObject *) _PyImport_AddModuleObject(PyObject *name, ^~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors error: command 'gcc' failed with exit status 1 And indeed there is a redundant declaration in that Python.h file, one with parameter names and the other without, so just add -Wno-error=redundant-decls to the python setup instructions. Now perf builds with gcc in ClearLinux with the following Dockerfile: # docker.io/acmel/linux-perf-tools-build-clearlinux:latest FROM docker.io/clearlinux:latest MAINTAINER Arnaldo Carvalho de Melo RUN swupd update && \ swupd bundle-add sysadmin-basic-dev RUN mkdir -m 777 -p /git /tmp/build/perf /tmp/build/objtool /tmp/build/linux && \ groupadd -r perfbuilder && \ useradd -m -r -g perfbuilder perfbuilder && \ chown -R perfbuilder.perfbuilder /tmp/build/ /git/ USER perfbuilder COPY rx_and_build.sh / ENV EXTRA_MAKE_ARGS=PYTHON=python3 ENTRYPOINT ["/rx_and_build.sh"] Now to figure out why the build fails with clang, that is present in the above container as detected by the rx_and_build.sh script: clang version 6.0.1 (tags/RELEASE_601/final) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /usr/sbin make: Entering directory '/git/linux/tools/perf' BUILD: Doing 'make -j4' parallel build HOSTCC /tmp/build/perf/fixdep.o HOSTLD /tmp/build/perf/fixdep-in.o LINK /tmp/build/perf/fixdep Auto-detecting system features: ... dwarf: [ OFF ] ... dwarf_getlocations: [ OFF ] ... glibc: [ OFF ] ... gtk2: [ OFF ] ... libaudit: [ OFF ] ... libbfd: [ OFF ] ... libelf: [ OFF ] ... libnuma: [ OFF ] ... numa_num_possible_cpus: [ OFF ] ... libperl: [ OFF ] ... libpython: [ OFF ] ... libslang: [ OFF ] ... libcrypto: [ OFF ] ... libunwind: [ OFF ] ... libdw-dwarf-unwind: [ OFF ] ... zlib: [ OFF ] ... lzma: [ OFF ] ... get_cpuid: [ OFF ] ... bpf: [ OFF ] Makefile.config:331: *** No gnu/libc-version.h found, please install glibc-dev[el]. Stop. make[1]: *** [Makefile.perf:206: sub-make] Error 2 make: *** [Makefile:70: all] Error 2 make: Leaving directory '/git/linux/tools/perf' Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Thiago Macieira Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-c3khb9ac86s00qxzjrueomme@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/setup.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py index 97efbcad076e..1942f6dd24f6 100644 --- a/tools/perf/util/setup.py +++ b/tools/perf/util/setup.py @@ -35,7 +35,7 @@ class install_lib(_install_lib): cflags = getenv('CFLAGS', '').split() # switch off several checks (need to be at the end of cflags list) -cflags += ['-fno-strict-aliasing', '-Wno-write-strings', '-Wno-unused-parameter' ] +cflags += ['-fno-strict-aliasing', '-Wno-write-strings', '-Wno-unused-parameter', '-Wno-redundant-decls' ] if cc != "clang": cflags += ['-Wno-cast-function-type' ] From 62165600ae73ebd76e2d9b992b36360408d570d8 Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (VMware)" Date: Fri, 5 Oct 2018 10:08:03 -0400 Subject: [PATCH 1603/1762] vsprintf: Fix off-by-one bug in bstr_printf() processing dereferenced pointers The functions vbin_printf() and bstr_printf() are used by trace_printk() to try to keep the overhead down during printing. trace_printk() uses vbin_printf() at the time of execution, as it only scans the fmt string to record the printf values into the buffer, and then uses vbin_printf() to do the conversions to print the string based on the format and the saved values in the buffer. This is an issue for dereferenced pointers, as before commit 841a915d20c7b, the processing of the pointer could happen some time after the pointer value was recorded (reading the trace buffer). This means the processing of the value at a later time could show different results, or even crash the system, if the pointer no longer existed. Commit 841a915d20c7b addressed this by processing dereferenced pointers at the time of execution and save the result in the ring buffer as a string. The bstr_printf() would then treat these pointers as normal strings, and print the value. But there was an off-by-one bug here, where after processing the argument, it move the pointer only "strlen(arg)" which made the arg pointer not point to the next argument in the ring buffer, but instead point to the nul character of the last argument. This causes any values after a dereferenced pointer to be corrupted. Cc: stable@vger.kernel.org Fixes: 841a915d20c7b ("vsprintf: Do not have bprintf dereference pointers") Reported-by: Nikolay Borisov Tested-by: Nikolay Borisov Signed-off-by: Steven Rostedt (VMware) --- lib/vsprintf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/vsprintf.c b/lib/vsprintf.c index d5b3a3f95c01..812e59e13fe6 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -2794,7 +2794,7 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf) copy = end - str; memcpy(str, args, copy); str += len; - args += len; + args += len + 1; } } if (process) From 7a8a8fcf7b860e4b2d4edc787c844d41cad9dfcf Mon Sep 17 00:00:00 2001 From: Milian Wolff Date: Wed, 26 Sep 2018 15:52:06 +0200 Subject: [PATCH 1604/1762] perf record: Use unmapped IP for inline callchain cursors Only use the mapped IP to find inline frames, but keep using the unmapped IP for the callchain cursor. This ensures we properly show the unmapped IP when displaying a frame we received via the dso__parse_addr_inlines API for a module which does not contain sufficient debug symbols to show the srcline. This is another follow-up to commit 19610184693c ("perf script: Show virtual addresses instead of offsets"). Signed-off-by: Milian Wolff Acked-by: Jiri Olsa Tested-by: Ravi Bangoria Tested-by: Arnaldo Carvalho de Melo Cc: Jin Yao Cc: Namhyung Kim Cc: Sandipan Das Fixes: 19610184693c ("perf script: Show virtual addresses instead of offsets") Link: http://lkml.kernel.org/r/20180926135207.30263-2-milian.wolff@kdab.com Link: http://lkml.kernel.org/r/20181002073949.3297-1-milian.wolff@kdab.com [ Squashed a fix from Milian for a problem reported by Ravi, fixed up space damage ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/machine.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 0cb4f8bf3ca7..111ae858cbcb 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -2286,7 +2286,8 @@ static int append_inlines(struct callchain_cursor *cursor, if (!symbol_conf.inline_name || !map || !sym) return ret; - addr = map__rip_2objdump(map, ip); + addr = map__map_ip(map, ip); + addr = map__rip_2objdump(map, addr); inline_node = inlines__tree_find(&map->dso->inlined_nodes, addr); if (!inline_node) { From 148b9aba99e0bbadf361747d21456e1589015f74 Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Tue, 2 Oct 2018 12:50:11 +0100 Subject: [PATCH 1605/1762] MIPS: memset: Fix CPU_DADDI_WORKAROUNDS `small_fixup' regression Fix a commit 8a8158c85e1e ("MIPS: memset.S: EVA & fault support for small_memset") regression and remove assembly warnings: arch/mips/lib/memset.S: Assembler messages: arch/mips/lib/memset.S:243: Warning: Macro instruction expanded into multiple instructions in a branch delay slot triggering with the CPU_DADDI_WORKAROUNDS option set and this code: PTR_SUBU a2, t1, a0 jr ra PTR_ADDIU a2, 1 This is because with that option in place the DADDIU instruction, which the PTR_ADDIU CPP macro expands to, becomes a GAS macro, which in turn expands to an LI/DADDU (or actually ADDIU/DADDU) sequence: 13c: 01a4302f dsubu a2,t1,a0 140: 03e00008 jr ra 144: 24010001 li at,1 148: 00c1302d daddu a2,a2,at ... Correct this by switching off the `noreorder' assembly mode and letting GAS schedule this jump's delay slot, as there is nothing special about it that would require manual scheduling. With this change in place correct code is produced: 13c: 01a4302f dsubu a2,t1,a0 140: 24010001 li at,1 144: 03e00008 jr ra 148: 00c1302d daddu a2,a2,at ... Signed-off-by: Maciej W. Rozycki Signed-off-by: Paul Burton Fixes: 8a8158c85e1e ("MIPS: memset.S: EVA & fault support for small_memset") Patchwork: https://patchwork.linux-mips.org/patch/20833/ Cc: Ralf Baechle Cc: stable@vger.kernel.org # 4.17+ --- arch/mips/lib/memset.S | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/mips/lib/memset.S b/arch/mips/lib/memset.S index 3a6f34ef5ffc..069acec3df9f 100644 --- a/arch/mips/lib/memset.S +++ b/arch/mips/lib/memset.S @@ -280,9 +280,11 @@ * unset_bytes = end_addr - current_addr + 1 * a2 = t1 - a0 + 1 */ + .set reorder PTR_SUBU a2, t1, a0 + PTR_ADDIU a2, 1 jr ra - PTR_ADDIU a2, 1 + .set noreorder .endm From b799207e1e1816b09e7a5920fbb2d5fcf6edd681 Mon Sep 17 00:00:00 2001 From: Jann Horn Date: Fri, 5 Oct 2018 18:17:59 +0200 Subject: [PATCH 1606/1762] bpf: 32-bit RSH verification must truncate input before the ALU op When I wrote commit 468f6eafa6c4 ("bpf: fix 32-bit ALU op verification"), I assumed that, in order to emulate 64-bit arithmetic with 32-bit logic, it is sufficient to just truncate the output to 32 bits; and so I just moved the register size coercion that used to be at the start of the function to the end of the function. That assumption is true for almost every op, but not for 32-bit right shifts, because those can propagate information towards the least significant bit. Fix it by always truncating inputs for 32-bit ops to 32 bits. Also get rid of the coerce_reg_to_size() after the ALU op, since that has no effect. Fixes: 468f6eafa6c4 ("bpf: fix 32-bit ALU op verification") Acked-by: Daniel Borkmann Signed-off-by: Jann Horn Signed-off-by: Daniel Borkmann --- kernel/bpf/verifier.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index bb07e74b34a2..465952a8e465 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -2896,6 +2896,15 @@ static int adjust_scalar_min_max_vals(struct bpf_verifier_env *env, u64 umin_val, umax_val; u64 insn_bitness = (BPF_CLASS(insn->code) == BPF_ALU64) ? 64 : 32; + if (insn_bitness == 32) { + /* Relevant for 32-bit RSH: Information can propagate towards + * LSB, so it isn't sufficient to only truncate the output to + * 32 bits. + */ + coerce_reg_to_size(dst_reg, 4); + coerce_reg_to_size(&src_reg, 4); + } + smin_val = src_reg.smin_value; smax_val = src_reg.smax_value; umin_val = src_reg.umin_value; @@ -3131,7 +3140,6 @@ static int adjust_scalar_min_max_vals(struct bpf_verifier_env *env, if (BPF_CLASS(insn->code) != BPF_ALU64) { /* 32-bit ALU ops are (32,32)->32 */ coerce_reg_to_size(dst_reg, 4); - coerce_reg_to_size(&src_reg, 4); } __reg_deduce_bounds(dst_reg); From 36d2582ff235b4e01ad64a734c877a52dc762d9c Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Thu, 4 Oct 2018 17:45:54 -0700 Subject: [PATCH 1607/1762] Input: evdev - add a schedule point in evdev_write() Large writes to evdev interface may cause rcu stalls. Let's add cond_resched() to the loop to avoid this. Reviewed-by: Paul E. McKenney Signed-off-by: Dmitry Torokhov --- drivers/input/evdev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 370206f987f9..f48369d6f3a0 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -564,6 +564,7 @@ static ssize_t evdev_write(struct file *file, const char __user *buffer, input_inject_event(&evdev->handle, event.type, event.code, event.value); + cond_resched(); } out: From cecf10704899467a787975e3d94a1f0129b9688e Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Thu, 4 Oct 2018 17:50:48 -0700 Subject: [PATCH 1608/1762] Input: uinput - add a schedule point in uinput_inject_events() Large writes to uinput interface may cause rcu stalls. Let's add cond_resched() to the loop to avoid this. Reviewed-by: Paul E. McKenney Signed-off-by: Dmitry Torokhov --- drivers/input/misc/uinput.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index eb14ddf69346..8ec483e8688b 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -598,6 +598,7 @@ static ssize_t uinput_inject_events(struct uinput_device *udev, input_event(udev->dev, ev.type, ev.code, ev.value); bytes += input_event_size(); + cond_resched(); } return bytes; From 2c05d88818ab6571816b93edce4d53703870d7ae Mon Sep 17 00:00:00 2001 From: Wenwen Wang Date: Fri, 5 Oct 2018 08:48:27 -0500 Subject: [PATCH 1609/1762] net: cxgb3_main: fix a missing-check bug In cxgb_extension_ioctl(), the command of the ioctl is firstly copied from the user-space buffer 'useraddr' to 'cmd' and checked through the switch statement. If the command is not as expected, an error code EOPNOTSUPP is returned. In the following execution, i.e., the cases of the switch statement, the whole buffer of 'useraddr' is copied again to a specific data structure, according to what kind of command is requested. However, after the second copy, there is no re-check on the newly-copied command. Given that the buffer 'useraddr' is in the user space, a malicious user can race to change the command between the two copies. By doing so, the attacker can supply malicious data to the kernel and cause undefined behavior. This patch adds a re-check in each case of the switch statement if there is a second copy in that case, to re-check whether the command obtained in the second copy is the same as the one in the first copy. If not, an error code EINVAL is returned. Signed-off-by: Wenwen Wang Signed-off-by: David S. Miller --- drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c index a19172dbe6be..c34ea385fe4a 100644 --- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c +++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c @@ -2159,6 +2159,8 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr) return -EPERM; if (copy_from_user(&t, useraddr, sizeof(t))) return -EFAULT; + if (t.cmd != CHELSIO_SET_QSET_PARAMS) + return -EINVAL; if (t.qset_idx >= SGE_QSETS) return -EINVAL; if (!in_range(t.intr_lat, 0, M_NEWTIMER) || @@ -2258,6 +2260,9 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr) if (copy_from_user(&t, useraddr, sizeof(t))) return -EFAULT; + if (t.cmd != CHELSIO_GET_QSET_PARAMS) + return -EINVAL; + /* Display qsets for all ports when offload enabled */ if (test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) { q1 = 0; @@ -2303,6 +2308,8 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr) return -EBUSY; if (copy_from_user(&edata, useraddr, sizeof(edata))) return -EFAULT; + if (edata.cmd != CHELSIO_SET_QSET_NUM) + return -EINVAL; if (edata.val < 1 || (edata.val > 1 && !(adapter->flags & USING_MSIX))) return -EINVAL; @@ -2343,6 +2350,8 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr) return -EPERM; if (copy_from_user(&t, useraddr, sizeof(t))) return -EFAULT; + if (t.cmd != CHELSIO_LOAD_FW) + return -EINVAL; /* Check t.len sanity ? */ fw_data = memdup_user(useraddr + sizeof(t), t.len); if (IS_ERR(fw_data)) @@ -2366,6 +2375,8 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr) return -EBUSY; if (copy_from_user(&m, useraddr, sizeof(m))) return -EFAULT; + if (m.cmd != CHELSIO_SETMTUTAB) + return -EINVAL; if (m.nmtus != NMTUS) return -EINVAL; if (m.mtus[0] < 81) /* accommodate SACK */ @@ -2407,6 +2418,8 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr) return -EBUSY; if (copy_from_user(&m, useraddr, sizeof(m))) return -EFAULT; + if (m.cmd != CHELSIO_SET_PM) + return -EINVAL; if (!is_power_of_2(m.rx_pg_sz) || !is_power_of_2(m.tx_pg_sz)) return -EINVAL; /* not power of 2 */ @@ -2440,6 +2453,8 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr) return -EIO; /* need the memory controllers */ if (copy_from_user(&t, useraddr, sizeof(t))) return -EFAULT; + if (t.cmd != CHELSIO_GET_MEM) + return -EINVAL; if ((t.addr & 7) || (t.len & 7)) return -EINVAL; if (t.mem_id == MEM_CM) @@ -2492,6 +2507,8 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr) return -EAGAIN; if (copy_from_user(&t, useraddr, sizeof(t))) return -EFAULT; + if (t.cmd != CHELSIO_SET_TRACE_FILTER) + return -EINVAL; tp = (const struct trace_params *)&t.sip; if (t.config_tx) From 33aa8da1f8a7dc050b9d68f1db761ab787621065 Mon Sep 17 00:00:00 2001 From: Shanthosh RK Date: Fri, 5 Oct 2018 20:57:48 +0530 Subject: [PATCH 1610/1762] net: bpfilter: Fix type cast and pointer warnings Fixes the following Sparse warnings: net/bpfilter/bpfilter_kern.c:62:21: warning: cast removes address space of expression net/bpfilter/bpfilter_kern.c:101:49: warning: Using plain integer as NULL pointer Signed-off-by: Shanthosh RK Signed-off-by: David S. Miller --- net/bpfilter/bpfilter_kern.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/bpfilter/bpfilter_kern.c b/net/bpfilter/bpfilter_kern.c index f0fc182d3db7..b64e1649993b 100644 --- a/net/bpfilter/bpfilter_kern.c +++ b/net/bpfilter/bpfilter_kern.c @@ -59,7 +59,7 @@ static int __bpfilter_process_sockopt(struct sock *sk, int optname, req.is_set = is_set; req.pid = current->pid; req.cmd = optname; - req.addr = (long)optval; + req.addr = (long __force __user)optval; req.len = optlen; mutex_lock(&bpfilter_lock); if (!info.pid) @@ -98,7 +98,7 @@ static int __init load_umh(void) pr_info("Loaded bpfilter_umh pid %d\n", info.pid); /* health check that usermode process started correctly */ - if (__bpfilter_process_sockopt(NULL, 0, 0, 0, 0) != 0) { + if (__bpfilter_process_sockopt(NULL, 0, NULL, 0, 0) != 0) { stop_umh(); return -EFAULT; } From 0781168e23a2fc8dceb989f11fc5b39b3ccacc35 Mon Sep 17 00:00:00 2001 From: Wenwen Wang Date: Fri, 5 Oct 2018 10:59:36 -0500 Subject: [PATCH 1611/1762] yam: fix a missing-check bug In yam_ioctl(), the concrete ioctl command is firstly copied from the user-space buffer 'ifr->ifr_data' to 'ioctl_cmd' and checked through the following switch statement. If the command is not as expected, an error code EINVAL is returned. In the following execution the buffer 'ifr->ifr_data' is copied again in the cases of the switch statement to specific data structures according to what kind of ioctl command is requested. However, after the second copy, no re-check is enforced on the newly-copied command. Given that the buffer 'ifr->ifr_data' is in the user space, a malicious user can race to change the command between the two copies. This way, the attacker can inject inconsistent data and cause undefined behavior. This patch adds a re-check in each case of the switch statement if there is a second copy in that case, to re-check whether the command obtained in the second copy is the same as the one in the first copy. If not, an error code EINVAL will be returned. Signed-off-by: Wenwen Wang Signed-off-by: David S. Miller --- drivers/net/hamradio/yam.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c index 16ec7af6ab7b..ba9df430fca6 100644 --- a/drivers/net/hamradio/yam.c +++ b/drivers/net/hamradio/yam.c @@ -966,6 +966,8 @@ static int yam_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) sizeof(struct yamdrv_ioctl_mcs)); if (IS_ERR(ym)) return PTR_ERR(ym); + if (ym->cmd != SIOCYAMSMCS) + return -EINVAL; if (ym->bitrate > YAM_MAXBITRATE) { kfree(ym); return -EINVAL; @@ -981,6 +983,8 @@ static int yam_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) if (copy_from_user(&yi, ifr->ifr_data, sizeof(struct yamdrv_ioctl_cfg))) return -EFAULT; + if (yi.cmd != SIOCYAMSCFG) + return -EINVAL; if ((yi.cfg.mask & YAM_IOBASE) && netif_running(dev)) return -EINVAL; /* Cannot change this parameter when up */ if ((yi.cfg.mask & YAM_IRQ) && netif_running(dev)) From bd961c9bc66497f0c63f4ba1d02900bb85078366 Mon Sep 17 00:00:00 2001 From: Mauricio Faria de Oliveira Date: Mon, 1 Oct 2018 22:46:40 -0300 Subject: [PATCH 1612/1762] rtnetlink: fix rtnl_fdb_dump() for ndmsg header Currently, rtnl_fdb_dump() assumes the family header is 'struct ifinfomsg', which is not always true -- 'struct ndmsg' is used by iproute2 ('ip neigh'). The problem is, the function bails out early if nlmsg_parse() fails, which does occur for iproute2 usage of 'struct ndmsg' because the payload length is shorter than the family header alone (as 'struct ifinfomsg' is assumed). This breaks backward compatibility with userspace -- nothing is sent back. Some examples with iproute2 and netlink library for go [1]: 1) $ bridge fdb show 33:33:00:00:00:01 dev ens3 self permanent 01:00:5e:00:00:01 dev ens3 self permanent 33:33:ff:15:98:30 dev ens3 self permanent This one works, as it uses 'struct ifinfomsg'. fdb_show() @ iproute2/bridge/fdb.c """ .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)), ... if (rtnl_dump_request(&rth, RTM_GETNEIGH, [...] """ 2) $ ip --family bridge neigh RTNETLINK answers: Invalid argument Dump terminated This one fails, as it uses 'struct ndmsg'. do_show_or_flush() @ iproute2/ip/ipneigh.c """ .n.nlmsg_type = RTM_GETNEIGH, .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg)), """ 3) $ ./neighlist < no output > This one fails, as it uses 'struct ndmsg'-based. neighList() @ netlink/neigh_linux.go """ req := h.newNetlinkRequest(unix.RTM_GETNEIGH, [...] msg := Ndmsg{ """ The actual breakage was introduced by commit 0ff50e83b512 ("net: rtnetlink: bail out from rtnl_fdb_dump() on parse error"), because nlmsg_parse() fails if the payload length (with the _actual_ family header) is less than the family header length alone (which is assumed, in parameter 'hdrlen'). This is true in the examples above with struct ndmsg, with size and payload length shorter than struct ifinfomsg. However, that commit just intends to fix something under the assumption the family header is indeed an 'struct ifinfomsg' - by preventing access to the payload as such (via 'ifm' pointer) if the payload length is not sufficient to actually contain it. The assumption was introduced by commit 5e6d24358799 ("bridge: netlink dump interface at par with brctl"), to support iproute2's 'bridge fdb' command (not 'ip neigh') which indeed uses 'struct ifinfomsg', thus is not broken. So, in order to unbreak the 'struct ndmsg' family headers and still allow 'struct ifinfomsg' to continue to work, check for the known message sizes used with 'struct ndmsg' in iproute2 (with zero or one attribute which is not used in this function anyway) then do not parse the data as ifinfomsg. Same examples with this patch applied (or revert/before the original fix): $ bridge fdb show 33:33:00:00:00:01 dev ens3 self permanent 01:00:5e:00:00:01 dev ens3 self permanent 33:33:ff:15:98:30 dev ens3 self permanent $ ip --family bridge neigh dev ens3 lladdr 33:33:00:00:00:01 PERMANENT dev ens3 lladdr 01:00:5e:00:00:01 PERMANENT dev ens3 lladdr 33:33:ff:15:98:30 PERMANENT $ ./neighlist netlink.Neigh{LinkIndex:2, Family:7, State:128, Type:0, Flags:2, IP:net.IP(nil), HardwareAddr:net.HardwareAddr{0x33, 0x33, 0x0, 0x0, 0x0, 0x1}, LLIPAddr:net.IP(nil), Vlan:0, VNI:0} netlink.Neigh{LinkIndex:2, Family:7, State:128, Type:0, Flags:2, IP:net.IP(nil), HardwareAddr:net.HardwareAddr{0x1, 0x0, 0x5e, 0x0, 0x0, 0x1}, LLIPAddr:net.IP(nil), Vlan:0, VNI:0} netlink.Neigh{LinkIndex:2, Family:7, State:128, Type:0, Flags:2, IP:net.IP(nil), HardwareAddr:net.HardwareAddr{0x33, 0x33, 0xff, 0x15, 0x98, 0x30}, LLIPAddr:net.IP(nil), Vlan:0, VNI:0} Tested on mainline (v4.19-rc6) and net-next (3bd09b05b068). References: [1] netlink library for go (test-case) https://github.com/vishvananda/netlink $ cat ~/go/src/neighlist/main.go package main import ("fmt"; "syscall"; "github.com/vishvananda/netlink") func main() { neighs, _ := netlink.NeighList(0, syscall.AF_BRIDGE) for _, neigh := range neighs { fmt.Printf("%#v\n", neigh) } } $ export GOPATH=~/go $ go get github.com/vishvananda/netlink $ go build neighlist $ ~/go/src/neighlist/neighlist Thanks to David Ahern for suggestions to improve this patch. Fixes: 0ff50e83b512 ("net: rtnetlink: bail out from rtnl_fdb_dump() on parse error") Fixes: 5e6d24358799 ("bridge: netlink dump interface at par with brctl") Reported-by: Aidan Obley Signed-off-by: Mauricio Faria de Oliveira Reviewed-by: David Ahern Signed-off-by: David S. Miller --- net/core/rtnetlink.c | 29 ++++++++++++++++++++--------- 1 file changed, 20 insertions(+), 9 deletions(-) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 448703312fed..37c7936124e6 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -3748,16 +3748,27 @@ static int rtnl_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb) int err = 0; int fidx = 0; - err = nlmsg_parse(cb->nlh, sizeof(struct ifinfomsg), tb, - IFLA_MAX, ifla_policy, NULL); - if (err < 0) { - return -EINVAL; - } else if (err == 0) { - if (tb[IFLA_MASTER]) - br_idx = nla_get_u32(tb[IFLA_MASTER]); - } + /* A hack to preserve kernel<->userspace interface. + * Before Linux v4.12 this code accepted ndmsg since iproute2 v3.3.0. + * However, ndmsg is shorter than ifinfomsg thus nlmsg_parse() bails. + * So, check for ndmsg with an optional u32 attribute (not used here). + * Fortunately these sizes don't conflict with the size of ifinfomsg + * with an optional attribute. + */ + if (nlmsg_len(cb->nlh) != sizeof(struct ndmsg) && + (nlmsg_len(cb->nlh) != sizeof(struct ndmsg) + + nla_attr_size(sizeof(u32)))) { + err = nlmsg_parse(cb->nlh, sizeof(struct ifinfomsg), tb, + IFLA_MAX, ifla_policy, NULL); + if (err < 0) { + return -EINVAL; + } else if (err == 0) { + if (tb[IFLA_MASTER]) + br_idx = nla_get_u32(tb[IFLA_MASTER]); + } - brport_idx = ifm->ifi_index; + brport_idx = ifm->ifi_index; + } if (br_idx) { br_dev = __dev_get_by_index(net, br_idx); From 8b4c3cdd9dd8290343ce959a132d3b334062c5b9 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Wed, 3 Oct 2018 15:05:36 -0700 Subject: [PATCH 1613/1762] net: sched: Add policy validation for tc attributes A number of TC attributes are processed without proper validation (e.g., length checks). Add a tca policy for all input attributes and use when invoking nlmsg_parse. The 2 Fixes tags below cover the latest additions. The other attributes are a string (KIND), nested attribute (OPTIONS which does seem to have validation in most cases), for dumps only or a flag. Fixes: 5bc1701881e39 ("net: sched: introduce multichain support for filters") Fixes: d47a6b0e7c492 ("net: sched: introduce ingress/egress block index attributes for qdisc") Signed-off-by: David Ahern Signed-off-by: David S. Miller --- net/sched/sch_api.c | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index 98541c6399db..85e73f48e48f 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -1311,6 +1311,18 @@ check_loop_fn(struct Qdisc *q, unsigned long cl, struct qdisc_walker *w) * Delete/get qdisc. */ +const struct nla_policy rtm_tca_policy[TCA_MAX + 1] = { + [TCA_KIND] = { .type = NLA_STRING }, + [TCA_OPTIONS] = { .type = NLA_NESTED }, + [TCA_RATE] = { .type = NLA_BINARY, + .len = sizeof(struct tc_estimator) }, + [TCA_STAB] = { .type = NLA_NESTED }, + [TCA_DUMP_INVISIBLE] = { .type = NLA_FLAG }, + [TCA_CHAIN] = { .type = NLA_U32 }, + [TCA_INGRESS_BLOCK] = { .type = NLA_U32 }, + [TCA_EGRESS_BLOCK] = { .type = NLA_U32 }, +}; + static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, struct netlink_ext_ack *extack) { @@ -1327,7 +1339,8 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, !netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) return -EPERM; - err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, NULL, extack); + err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, rtm_tca_policy, + extack); if (err < 0) return err; @@ -1411,7 +1424,8 @@ static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n, replay: /* Reinit, just in case something touches this. */ - err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, NULL, extack); + err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, rtm_tca_policy, + extack); if (err < 0) return err; @@ -1645,7 +1659,8 @@ static int tc_dump_qdisc(struct sk_buff *skb, struct netlink_callback *cb) idx = 0; ASSERT_RTNL(); - err = nlmsg_parse(nlh, sizeof(struct tcmsg), tca, TCA_MAX, NULL, NULL); + err = nlmsg_parse(nlh, sizeof(struct tcmsg), tca, TCA_MAX, + rtm_tca_policy, NULL); if (err < 0) return err; @@ -1864,7 +1879,8 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, !netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) return -EPERM; - err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, NULL, extack); + err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, rtm_tca_policy, + extack); if (err < 0) return err; From c58a584f05e35d1d4342923cd7aac07d9c3d3d16 Mon Sep 17 00:00:00 2001 From: Vineet Gupta Date: Fri, 5 Oct 2018 12:48:48 -0700 Subject: [PATCH 1614/1762] ARC: clone syscall to setp r25 as thread pointer Per ARC TLS ABI, r25 is designated TP (thread pointer register). However so far kernel didn't do any special treatment, like setting up usermode r25, even for CLONE_SETTLS. We instead relied on libc runtime to do this, in say clone libc wrapper [1]. This was deliberate to keep kernel ABI agnostic (userspace could potentially change TP, specially for different ARC ISA say ARCompact vs. ARCv2 with different spare registers etc) However userspace setting up r25, after clone syscall opens a race, if child is not scheduled and gets a signal instead. It starts off in userspace not in clone but in a signal handler and anything TP sepcific there such as pthread_self() fails which showed up with uClibc testsuite nptl/tst-kill6 [2] Fix this by having kernel populate r25 to TP value. So this locks in ABI, but it was not going to change anyways, and fwiw is same for both ARCompact (arc700 core) and ARCvs (HS3x cores) [1] https://cgit.uclibc-ng.org/cgi/cgit/uclibc-ng.git/tree/libc/sysdeps/linux/arc/clone.S [2] https://github.com/wbx-github/uclibc-ng-test/blob/master/test/nptl/tst-kill6.c Fixes: ARC STAR 9001378481 Cc: stable@vger.kernel.org Reported-by: Nikita Sobolev Signed-off-by: Vineet Gupta --- arch/arc/kernel/process.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c index 4674541eba3f..8ce6e7235915 100644 --- a/arch/arc/kernel/process.c +++ b/arch/arc/kernel/process.c @@ -241,6 +241,26 @@ int copy_thread(unsigned long clone_flags, task_thread_info(current)->thr_ptr; } + + /* + * setup usermode thread pointer #1: + * when child is picked by scheduler, __switch_to() uses @c_callee to + * populate usermode callee regs: this works (despite being in a kernel + * function) since special return path for child @ret_from_fork() + * ensures those regs are not clobbered all the way to RTIE to usermode + */ + c_callee->r25 = task_thread_info(p)->thr_ptr; + +#ifdef CONFIG_ARC_CURR_IN_REG + /* + * setup usermode thread pointer #2: + * however for this special use of r25 in kernel, __switch_to() sets + * r25 for kernel needs and only in the final return path is usermode + * r25 setup, from pt_regs->user_r25. So set that up as well + */ + c_regs->user_r25 = c_callee->r25; +#endif + return 0; } From a688caa34beb2fd2a92f1b6d33e40cde433ba160 Mon Sep 17 00:00:00 2001 From: Wei Wang Date: Thu, 4 Oct 2018 10:12:37 -0700 Subject: [PATCH 1615/1762] ipv6: take rcu lock in rawv6_send_hdrinc() In rawv6_send_hdrinc(), in order to avoid an extra dst_hold(), we directly assign the dst to skb and set passed in dst to NULL to avoid double free. However, in error case, we free skb and then do stats update with the dst pointer passed in. This causes use-after-free on the dst. Fix it by taking rcu read lock right before dst could get released to make sure dst does not get freed until the stats update is done. Note: we don't have this issue in ipv4 cause dst is not used for stats update in v4. Syzkaller reported following crash: BUG: KASAN: use-after-free in rawv6_send_hdrinc net/ipv6/raw.c:692 [inline] BUG: KASAN: use-after-free in rawv6_sendmsg+0x4421/0x4630 net/ipv6/raw.c:921 Read of size 8 at addr ffff8801d95ba730 by task syz-executor0/32088 CPU: 1 PID: 32088 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #93 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 print_address_description.cold.8+0x9/0x1ff mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.9+0x242/0x309 mm/kasan/report.c:412 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 rawv6_send_hdrinc net/ipv6/raw.c:692 [inline] rawv6_sendmsg+0x4421/0x4630 net/ipv6/raw.c:921 inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2114 __sys_sendmsg+0x11d/0x280 net/socket.c:2152 __do_sys_sendmsg net/socket.c:2161 [inline] __se_sys_sendmsg net/socket.c:2159 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2159 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457099 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f83756edc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f83756ee6d4 RCX: 0000000000457099 RDX: 0000000000000000 RSI: 0000000020003840 RDI: 0000000000000004 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d4b30 R14: 00000000004c90b1 R15: 0000000000000000 Allocated by task 32088: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 dst_alloc+0xbb/0x1d0 net/core/dst.c:105 ip6_dst_alloc+0x35/0xa0 net/ipv6/route.c:353 ip6_rt_cache_alloc+0x247/0x7b0 net/ipv6/route.c:1186 ip6_pol_route+0x8f8/0xd90 net/ipv6/route.c:1895 ip6_pol_route_output+0x54/0x70 net/ipv6/route.c:2093 fib6_rule_lookup+0x277/0x860 net/ipv6/fib6_rules.c:122 ip6_route_output_flags+0x2c5/0x350 net/ipv6/route.c:2121 ip6_route_output include/net/ip6_route.h:88 [inline] ip6_dst_lookup_tail+0xe27/0x1d60 net/ipv6/ip6_output.c:951 ip6_dst_lookup_flow+0xc8/0x270 net/ipv6/ip6_output.c:1079 rawv6_sendmsg+0x12d9/0x4630 net/ipv6/raw.c:905 inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2114 __sys_sendmsg+0x11d/0x280 net/socket.c:2152 __do_sys_sendmsg net/socket.c:2161 [inline] __se_sys_sendmsg net/socket.c:2159 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2159 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 5356: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x102/0x150 mm/kasan/kasan.c:521 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528 __cache_free mm/slab.c:3498 [inline] kmem_cache_free+0x83/0x290 mm/slab.c:3756 dst_destroy+0x267/0x3c0 net/core/dst.c:141 dst_destroy_rcu+0x16/0x19 net/core/dst.c:154 __rcu_reclaim kernel/rcu/rcu.h:236 [inline] rcu_do_batch kernel/rcu/tree.c:2576 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2880 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2847 [inline] rcu_process_callbacks+0xf23/0x2670 kernel/rcu/tree.c:2864 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 Fixes: 1789a640f556 ("raw: avoid two atomics in xmit") Signed-off-by: Wei Wang Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv6/raw.c | 29 ++++++++++++++++++++--------- 1 file changed, 20 insertions(+), 9 deletions(-) diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 413d98bf24f4..5e0efd3954e9 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -651,8 +651,6 @@ static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, int length, skb->priority = sk->sk_priority; skb->mark = sk->sk_mark; skb->tstamp = sockc->transmit_time; - skb_dst_set(skb, &rt->dst); - *dstp = NULL; skb_put(skb, length); skb_reset_network_header(skb); @@ -665,8 +663,14 @@ static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, int length, skb->transport_header = skb->network_header; err = memcpy_from_msg(iph, msg, length); - if (err) - goto error_fault; + if (err) { + err = -EFAULT; + kfree_skb(skb); + goto error; + } + + skb_dst_set(skb, &rt->dst); + *dstp = NULL; /* if egress device is enslaved to an L3 master device pass the * skb to its handler for processing @@ -675,21 +679,28 @@ static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, int length, if (unlikely(!skb)) return 0; + /* Acquire rcu_read_lock() in case we need to use rt->rt6i_idev + * in the error path. Since skb has been freed, the dst could + * have been queued for deletion. + */ + rcu_read_lock(); IP6_UPD_PO_STATS(net, rt->rt6i_idev, IPSTATS_MIB_OUT, skb->len); err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, net, sk, skb, NULL, rt->dst.dev, dst_output); if (err > 0) err = net_xmit_errno(err); - if (err) - goto error; + if (err) { + IP6_INC_STATS(net, rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS); + rcu_read_unlock(); + goto error_check; + } + rcu_read_unlock(); out: return 0; -error_fault: - err = -EFAULT; - kfree_skb(skb); error: IP6_INC_STATS(net, rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS); +error_check: if (err == -ENOBUFS && !np->recverr) err = 0; return err; From 35f3625c21852ad839f20c91c7d81c4c1101e207 Mon Sep 17 00:00:00 2001 From: Maxime Chevallier Date: Fri, 5 Oct 2018 09:04:40 +0200 Subject: [PATCH 1616/1762] net: mvpp2: Extract the correct ethtype from the skb for tx csum offload When offloading the L3 and L4 csum computation on TX, we need to extract the l3_proto from the ethtype, independently of the presence of a vlan tag. The actual driver uses skb->protocol as-is, resulting in packets with the wrong L4 checksum being sent when there's a vlan tag in the packet header and checksum offloading is enabled. This commit makes use of vlan_protocol_get() to get the correct ethtype regardless the presence of a vlan tag. Fixes: 3f518509dedc ("ethernet: Add new driver for Marvell Armada 375 network unit") Signed-off-by: Maxime Chevallier Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index 38cc01beea79..a74002b43b51 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -1725,7 +1725,7 @@ static void mvpp2_txq_desc_put(struct mvpp2_tx_queue *txq) } /* Set Tx descriptors fields relevant for CSUM calculation */ -static u32 mvpp2_txq_desc_csum(int l3_offs, int l3_proto, +static u32 mvpp2_txq_desc_csum(int l3_offs, __be16 l3_proto, int ip_hdr_len, int l4_proto) { u32 command; @@ -2600,14 +2600,15 @@ static u32 mvpp2_skb_tx_csum(struct mvpp2_port *port, struct sk_buff *skb) if (skb->ip_summed == CHECKSUM_PARTIAL) { int ip_hdr_len = 0; u8 l4_proto; + __be16 l3_proto = vlan_get_protocol(skb); - if (skb->protocol == htons(ETH_P_IP)) { + if (l3_proto == htons(ETH_P_IP)) { struct iphdr *ip4h = ip_hdr(skb); /* Calculate IPv4 checksum and L4 checksum */ ip_hdr_len = ip4h->ihl; l4_proto = ip4h->protocol; - } else if (skb->protocol == htons(ETH_P_IPV6)) { + } else if (l3_proto == htons(ETH_P_IPV6)) { struct ipv6hdr *ip6h = ipv6_hdr(skb); /* Read l4_protocol from one of IPv6 extra headers */ @@ -2619,7 +2620,7 @@ static u32 mvpp2_skb_tx_csum(struct mvpp2_port *port, struct sk_buff *skb) } return mvpp2_txq_desc_csum(skb_network_offset(skb), - skb->protocol, ip_hdr_len, l4_proto); + l3_proto, ip_hdr_len, l4_proto); } return MVPP2_TXD_L4_CSUM_NOT | MVPP2_TXD_IP_CSUM_DISABLE; From 017b1660df89f5fb4bfe66c34e35f7d2031100c7 Mon Sep 17 00:00:00 2001 From: Mike Kravetz Date: Fri, 5 Oct 2018 15:51:29 -0700 Subject: [PATCH 1617/1762] mm: migration: fix migration of huge PMD shared pages The page migration code employs try_to_unmap() to try and unmap the source page. This is accomplished by using rmap_walk to find all vmas where the page is mapped. This search stops when page mapcount is zero. For shared PMD huge pages, the page map count is always 1 no matter the number of mappings. Shared mappings are tracked via the reference count of the PMD page. Therefore, try_to_unmap stops prematurely and does not completely unmap all mappings of the source page. This problem can result is data corruption as writes to the original source page can happen after contents of the page are copied to the target page. Hence, data is lost. This problem was originally seen as DB corruption of shared global areas after a huge page was soft offlined due to ECC memory errors. DB developers noticed they could reproduce the issue by (hotplug) offlining memory used to back huge pages. A simple testcase can reproduce the problem by creating a shared PMD mapping (note that this must be at least PUD_SIZE in size and PUD_SIZE aligned (1GB on x86)), and using migrate_pages() to migrate process pages between nodes while continually writing to the huge pages being migrated. To fix, have the try_to_unmap_one routine check for huge PMD sharing by calling huge_pmd_unshare for hugetlbfs huge pages. If it is a shared mapping it will be 'unshared' which removes the page table entry and drops the reference on the PMD page. After this, flush caches and TLB. mmu notifiers are called before locking page tables, but we can not be sure of PMD sharing until page tables are locked. Therefore, check for the possibility of PMD sharing before locking so that notifiers can prepare for the worst possible case. Link: http://lkml.kernel.org/r/20180823205917.16297-2-mike.kravetz@oracle.com [mike.kravetz@oracle.com: make _range_in_vma() a static inline] Link: http://lkml.kernel.org/r/6063f215-a5c8-2f0c-465a-2c515ddc952d@oracle.com Fixes: 39dde65c9940 ("shared page table for hugetlb page") Signed-off-by: Mike Kravetz Acked-by: Kirill A. Shutemov Reviewed-by: Naoya Horiguchi Acked-by: Michal Hocko Cc: Vlastimil Babka Cc: Davidlohr Bueso Cc: Jerome Glisse Cc: Mike Kravetz Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- include/linux/hugetlb.h | 14 ++++++++++++++ include/linux/mm.h | 6 ++++++ mm/hugetlb.c | 37 ++++++++++++++++++++++++++++++++++-- mm/rmap.c | 42 ++++++++++++++++++++++++++++++++++++++--- 4 files changed, 94 insertions(+), 5 deletions(-) diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 6b68e345f0ca..087fd5f48c91 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -140,6 +140,8 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr, unsigned long sz); int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep); +void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma, + unsigned long *start, unsigned long *end); struct page *follow_huge_addr(struct mm_struct *mm, unsigned long address, int write); struct page *follow_huge_pd(struct vm_area_struct *vma, @@ -170,6 +172,18 @@ static inline unsigned long hugetlb_total_pages(void) return 0; } +static inline int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, + pte_t *ptep) +{ + return 0; +} + +static inline void adjust_range_if_pmd_sharing_possible( + struct vm_area_struct *vma, + unsigned long *start, unsigned long *end) +{ +} + #define follow_hugetlb_page(m,v,p,vs,a,b,i,w,n) ({ BUG(); 0; }) #define follow_huge_addr(mm, addr, write) ERR_PTR(-EINVAL) #define copy_hugetlb_page_range(src, dst, vma) ({ BUG(); 0; }) diff --git a/include/linux/mm.h b/include/linux/mm.h index a61ebe8ad4ca..0416a7204be3 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2455,6 +2455,12 @@ static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm, return vma; } +static inline bool range_in_vma(struct vm_area_struct *vma, + unsigned long start, unsigned long end) +{ + return (vma && vma->vm_start <= start && end <= vma->vm_end); +} + #ifdef CONFIG_MMU pgprot_t vm_get_page_prot(unsigned long vm_flags); void vma_set_page_prot(struct vm_area_struct *vma); diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 3c21775f196b..b903d746e132 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -4545,12 +4545,40 @@ static bool vma_shareable(struct vm_area_struct *vma, unsigned long addr) /* * check on proper vm_flags and page table alignment */ - if (vma->vm_flags & VM_MAYSHARE && - vma->vm_start <= base && end <= vma->vm_end) + if (vma->vm_flags & VM_MAYSHARE && range_in_vma(vma, base, end)) return true; return false; } +/* + * Determine if start,end range within vma could be mapped by shared pmd. + * If yes, adjust start and end to cover range associated with possible + * shared pmd mappings. + */ +void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma, + unsigned long *start, unsigned long *end) +{ + unsigned long check_addr = *start; + + if (!(vma->vm_flags & VM_MAYSHARE)) + return; + + for (check_addr = *start; check_addr < *end; check_addr += PUD_SIZE) { + unsigned long a_start = check_addr & PUD_MASK; + unsigned long a_end = a_start + PUD_SIZE; + + /* + * If sharing is possible, adjust start/end if necessary. + */ + if (range_in_vma(vma, a_start, a_end)) { + if (a_start < *start) + *start = a_start; + if (a_end > *end) + *end = a_end; + } + } +} + /* * Search for a shareable pmd page for hugetlb. In any case calls pmd_alloc() * and returns the corresponding pte. While this is not necessary for the @@ -4648,6 +4676,11 @@ int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep) { return 0; } + +void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma, + unsigned long *start, unsigned long *end) +{ +} #define want_pmd_share() (0) #endif /* CONFIG_ARCH_WANT_HUGE_PMD_SHARE */ diff --git a/mm/rmap.c b/mm/rmap.c index eb477809a5c0..1e79fac3186b 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -1362,11 +1362,21 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma, } /* - * We have to assume the worse case ie pmd for invalidation. Note that - * the page can not be free in this function as call of try_to_unmap() - * must hold a reference on the page. + * For THP, we have to assume the worse case ie pmd for invalidation. + * For hugetlb, it could be much worse if we need to do pud + * invalidation in the case of pmd sharing. + * + * Note that the page can not be free in this function as call of + * try_to_unmap() must hold a reference on the page. */ end = min(vma->vm_end, start + (PAGE_SIZE << compound_order(page))); + if (PageHuge(page)) { + /* + * If sharing is possible, start and end will be adjusted + * accordingly. + */ + adjust_range_if_pmd_sharing_possible(vma, &start, &end); + } mmu_notifier_invalidate_range_start(vma->vm_mm, start, end); while (page_vma_mapped_walk(&pvmw)) { @@ -1409,6 +1419,32 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma, subpage = page - page_to_pfn(page) + pte_pfn(*pvmw.pte); address = pvmw.address; + if (PageHuge(page)) { + if (huge_pmd_unshare(mm, &address, pvmw.pte)) { + /* + * huge_pmd_unshare unmapped an entire PMD + * page. There is no way of knowing exactly + * which PMDs may be cached for this mm, so + * we must flush them all. start/end were + * already adjusted above to cover this range. + */ + flush_cache_range(vma, start, end); + flush_tlb_range(vma, start, end); + mmu_notifier_invalidate_range(mm, start, end); + + /* + * The ref count of the PMD page was dropped + * which is part of the way map counting + * is done for shared PMDs. Return 'true' + * here. When there is no other sharing, + * huge_pmd_unshare returns false and we will + * unmap the actual page and drop map count + * to zero. + */ + page_vma_mapped_walk_done(&pvmw); + break; + } + } if (IS_ENABLED(CONFIG_MIGRATION) && (flags & TTU_MIGRATION) && From dff11abe280b47c21b804a8ace318e0638bb9a49 Mon Sep 17 00:00:00 2001 From: Mike Kravetz Date: Fri, 5 Oct 2018 15:51:33 -0700 Subject: [PATCH 1618/1762] hugetlb: take PMD sharing into account when flushing tlb/caches When fixing an issue with PMD sharing and migration, it was discovered via code inspection that other callers of huge_pmd_unshare potentially have an issue with cache and tlb flushing. Use the routine adjust_range_if_pmd_sharing_possible() to calculate worst case ranges for mmu notifiers. Ensure that this range is flushed if huge_pmd_unshare succeeds and unmaps a PUD_SUZE area. Link: http://lkml.kernel.org/r/20180823205917.16297-3-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz Acked-by: Kirill A. Shutemov Reviewed-by: Naoya Horiguchi Cc: Vlastimil Babka Cc: Davidlohr Bueso Cc: Michal Hocko Cc: Jerome Glisse Cc: Mike Kravetz Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/hugetlb.c | 53 +++++++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 44 insertions(+), 9 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index b903d746e132..5c390f5a5207 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -3326,8 +3326,8 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma, struct page *page; struct hstate *h = hstate_vma(vma); unsigned long sz = huge_page_size(h); - const unsigned long mmun_start = start; /* For mmu_notifiers */ - const unsigned long mmun_end = end; /* For mmu_notifiers */ + unsigned long mmun_start = start; /* For mmu_notifiers */ + unsigned long mmun_end = end; /* For mmu_notifiers */ WARN_ON(!is_vm_hugetlb_page(vma)); BUG_ON(start & ~huge_page_mask(h)); @@ -3339,6 +3339,11 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma, */ tlb_remove_check_page_size_change(tlb, sz); tlb_start_vma(tlb, vma); + + /* + * If sharing possible, alert mmu notifiers of worst case. + */ + adjust_range_if_pmd_sharing_possible(vma, &mmun_start, &mmun_end); mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end); address = start; for (; address < end; address += sz) { @@ -3349,6 +3354,10 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma, ptl = huge_pte_lock(h, mm, ptep); if (huge_pmd_unshare(mm, &address, ptep)) { spin_unlock(ptl); + /* + * We just unmapped a page of PMDs by clearing a PUD. + * The caller's TLB flush range should cover this area. + */ continue; } @@ -3431,12 +3440,23 @@ void unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start, { struct mm_struct *mm; struct mmu_gather tlb; + unsigned long tlb_start = start; + unsigned long tlb_end = end; + + /* + * If shared PMDs were possibly used within this vma range, adjust + * start/end for worst case tlb flushing. + * Note that we can not be sure if PMDs are shared until we try to + * unmap pages. However, we want to make sure TLB flushing covers + * the largest possible range. + */ + adjust_range_if_pmd_sharing_possible(vma, &tlb_start, &tlb_end); mm = vma->vm_mm; - tlb_gather_mmu(&tlb, mm, start, end); + tlb_gather_mmu(&tlb, mm, tlb_start, tlb_end); __unmap_hugepage_range(&tlb, vma, start, end, ref_page); - tlb_finish_mmu(&tlb, start, end); + tlb_finish_mmu(&tlb, tlb_start, tlb_end); } /* @@ -4298,11 +4318,21 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma, pte_t pte; struct hstate *h = hstate_vma(vma); unsigned long pages = 0; + unsigned long f_start = start; + unsigned long f_end = end; + bool shared_pmd = false; + + /* + * In the case of shared PMDs, the area to flush could be beyond + * start/end. Set f_start/f_end to cover the maximum possible + * range if PMD sharing is possible. + */ + adjust_range_if_pmd_sharing_possible(vma, &f_start, &f_end); BUG_ON(address >= end); - flush_cache_range(vma, address, end); + flush_cache_range(vma, f_start, f_end); - mmu_notifier_invalidate_range_start(mm, start, end); + mmu_notifier_invalidate_range_start(mm, f_start, f_end); i_mmap_lock_write(vma->vm_file->f_mapping); for (; address < end; address += huge_page_size(h)) { spinlock_t *ptl; @@ -4313,6 +4343,7 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma, if (huge_pmd_unshare(mm, &address, ptep)) { pages++; spin_unlock(ptl); + shared_pmd = true; continue; } pte = huge_ptep_get(ptep); @@ -4348,9 +4379,13 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma, * Must flush TLB before releasing i_mmap_rwsem: x86's huge_pmd_unshare * may have cleared our pud entry and done put_page on the page table: * once we release i_mmap_rwsem, another task can do the final put_page - * and that page table be reused and filled with junk. + * and that page table be reused and filled with junk. If we actually + * did unshare a page of pmds, flush the range corresponding to the pud. */ - flush_hugetlb_tlb_range(vma, start, end); + if (shared_pmd) + flush_hugetlb_tlb_range(vma, f_start, f_end); + else + flush_hugetlb_tlb_range(vma, start, end); /* * No need to call mmu_notifier_invalidate_range() we are downgrading * page table protection not changing it to point to a new page. @@ -4358,7 +4393,7 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma, * See Documentation/vm/mmu_notifier.rst */ i_mmap_unlock_write(vma->vm_file->f_mapping); - mmu_notifier_invalidate_range_end(mm, start, end); + mmu_notifier_invalidate_range_end(mm, f_start, f_end); return pages << h->order; } From 69eb7765b9c6902444c89c54e7043242faf981e5 Mon Sep 17 00:00:00 2001 From: Larry Chen Date: Fri, 5 Oct 2018 15:51:37 -0700 Subject: [PATCH 1619/1762] ocfs2: fix crash in ocfs2_duplicate_clusters_by_page() ocfs2_duplicate_clusters_by_page() may crash if one of the extent's pages is dirty. When a page has not been written back, it is still in dirty state. If ocfs2_duplicate_clusters_by_page() is called against the dirty page, the crash happens. To fix this bug, we can just unlock the page and wait until the page until its not dirty. The following is the backtrace: kernel BUG at /root/code/ocfs2/refcounttree.c:2961! [exception RIP: ocfs2_duplicate_clusters_by_page+822] __ocfs2_move_extent+0x80/0x450 [ocfs2] ? __ocfs2_claim_clusters+0x130/0x250 [ocfs2] ocfs2_defrag_extent+0x5b8/0x5e0 [ocfs2] __ocfs2_move_extents_range+0x2a4/0x470 [ocfs2] ocfs2_move_extents+0x180/0x3b0 [ocfs2] ? ocfs2_wait_for_recovery+0x13/0x70 [ocfs2] ocfs2_ioctl_move_extents+0x133/0x2d0 [ocfs2] ocfs2_ioctl+0x253/0x640 [ocfs2] do_vfs_ioctl+0x90/0x5f0 SyS_ioctl+0x74/0x80 do_syscall_64+0x74/0x140 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 Once we find the page is dirty, we do not wait until it's clean, rather we use write_one_page() to write it back Link: http://lkml.kernel.org/r/20180829074740.9438-1-lchen@suse.com [lchen@suse.com: update comments] Link: http://lkml.kernel.org/r/20180830075041.14879-1-lchen@suse.com [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Larry Chen Acked-by: Changwei Ge Cc: Mark Fasheh Cc: Joel Becker Cc: Junxiao Bi Cc: Joseph Qi Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- fs/ocfs2/refcounttree.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index 7869622af22a..7a5ee145c733 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -2946,6 +2946,7 @@ int ocfs2_duplicate_clusters_by_page(handle_t *handle, if (map_end & (PAGE_SIZE - 1)) to = map_end & (PAGE_SIZE - 1); +retry: page = find_or_create_page(mapping, page_index, GFP_NOFS); if (!page) { ret = -ENOMEM; @@ -2954,11 +2955,18 @@ int ocfs2_duplicate_clusters_by_page(handle_t *handle, } /* - * In case PAGE_SIZE <= CLUSTER_SIZE, This page - * can't be dirtied before we CoW it out. + * In case PAGE_SIZE <= CLUSTER_SIZE, we do not expect a dirty + * page, so write it back. */ - if (PAGE_SIZE <= OCFS2_SB(sb)->s_clustersize) - BUG_ON(PageDirty(page)); + if (PAGE_SIZE <= OCFS2_SB(sb)->s_clustersize) { + if (PageDirty(page)) { + /* + * write_on_page will unlock the page on return + */ + ret = write_one_page(page); + goto retry; + } + } if (!PageUptodate(page)) { ret = block_read_full_page(page, ocfs2_get_block); From e125fe405abedc1dc8a5b2229b80ee91c1434015 Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Fri, 5 Oct 2018 15:51:41 -0700 Subject: [PATCH 1620/1762] mm, thp: fix mlocking THP page with migration enabled A transparent huge page is represented by a single entry on an LRU list. Therefore, we can only make unevictable an entire compound page, not individual subpages. If a user tries to mlock() part of a huge page, we want the rest of the page to be reclaimable. We handle this by keeping PTE-mapped huge pages on normal LRU lists: the PMD on border of VM_LOCKED VMA will be split into PTE table. Introduction of THP migration breaks[1] the rules around mlocking THP pages. If we had a single PMD mapping of the page in mlocked VMA, the page will get mlocked, regardless of PTE mappings of the page. For tmpfs/shmem it's easy to fix by checking PageDoubleMap() in remove_migration_pmd(). Anon THP pages can only be shared between processes via fork(). Mlocked page can only be shared if parent mlocked it before forking, otherwise CoW will be triggered on mlock(). For Anon-THP, we can fix the issue by munlocking the page on removing PTE migration entry for the page. PTEs for the page will always come after mlocked PMD: rmap walks VMAs from oldest to newest. Test-case: #include #include #include #include #include int main(void) { unsigned long nodemask = 4; void *addr; addr = mmap((void *)0x20000000UL, 2UL << 20, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_LOCKED, -1, 0); if (fork()) { wait(NULL); return 0; } mlock(addr, 4UL << 10); mbind(addr, 2UL << 20, MPOL_PREFERRED | MPOL_F_RELATIVE_NODES, &nodemask, 4, MPOL_MF_MOVE); return 0; } [1] https://lkml.kernel.org/r/CAOMGZ=G52R-30rZvhGxEbkTw7rLLwBGadVYeo--iizcD3upL3A@mail.gmail.com Link: http://lkml.kernel.org/r/20180917133816.43995-1-kirill.shutemov@linux.intel.com Fixes: 616b8371539a ("mm: thp: enable thp migration in generic path") Signed-off-by: Kirill A. Shutemov Reported-by: Vegard Nossum Reviewed-by: Zi Yan Cc: Naoya Horiguchi Cc: Vlastimil Babka Cc: Andrea Arcangeli Cc: [4.14+] Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/huge_memory.c | 2 +- mm/migrate.c | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 533f9b00147d..00704060b7f7 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2931,7 +2931,7 @@ void remove_migration_pmd(struct page_vma_mapped_walk *pvmw, struct page *new) else page_add_file_rmap(new, true); set_pmd_at(mm, mmun_start, pvmw->pmd, pmde); - if (vma->vm_flags & VM_LOCKED) + if ((vma->vm_flags & VM_LOCKED) && !PageDoubleMap(new)) mlock_vma_page(new); update_mmu_cache_pmd(vma, address, pvmw->pmd); } diff --git a/mm/migrate.c b/mm/migrate.c index d6a2e89b086a..9d374011c244 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -275,6 +275,9 @@ static bool remove_migration_pte(struct page *page, struct vm_area_struct *vma, if (vma->vm_flags & VM_LOCKED && !PageTransCompound(new)) mlock_vma_page(new); + if (PageTransHuge(page) && PageMlocked(page)) + clear_page_mlock(page); + /* No need to invalidate - it was non-present before */ update_mmu_cache(vma, pvmw.address, pvmw.pte); } From 51896864579d5a3349740847083f4db5c6487164 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Fri, 5 Oct 2018 15:51:44 -0700 Subject: [PATCH 1621/1762] mm/gup_benchmark: fix unsigned comparison to zero in __gup_benchmark_ioctl get_user_pages_fast() will return negative value if no pages were pinned, then be converted to a unsigned, which is compared to zero, giving the wrong result. Link: http://lkml.kernel.org/r/20180921095015.26088-1-yuehaibing@huawei.com Fixes: 09e35a4a1ca8 ("mm/gup_benchmark: handle gup failures") Signed-off-by: YueHaibing Reviewed-by: Andrew Morton Cc: Michael S. Tsirkin Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/gup_benchmark.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/gup_benchmark.c b/mm/gup_benchmark.c index 6a473709e9b6..7405c9d89d65 100644 --- a/mm/gup_benchmark.c +++ b/mm/gup_benchmark.c @@ -19,7 +19,8 @@ static int __gup_benchmark_ioctl(unsigned int cmd, struct gup_benchmark *gup) { ktime_t start_time, end_time; - unsigned long i, nr, nr_pages, addr, next; + unsigned long i, nr_pages, addr, next; + int nr; struct page **pages; nr_pages = gup->size / PAGE_SIZE; From 59cf0a9339ca4b0226e9b4329dfb0a5b8b0b9bc2 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 5 Oct 2018 15:51:48 -0700 Subject: [PATCH 1622/1762] ipc/shm.c: use ERR_CAST() for shm_lock() error return This uses ERR_CAST() instead of an open-coded cast, as it is casting across structure pointers, which upsets __randomize_layout: ipc/shm.c: In function `shm_lock': ipc/shm.c:209:9: note: randstruct: casting between randomized structure pointer types (ssa): `struct shmid_kernel' and `struct kern_ipc_perm' return (void *)ipcp; ^~~~~~~~~~~~ Link: http://lkml.kernel.org/r/20180919180722.GA15073@beast Fixes: 82061c57ce93 ("ipc: drop ipc_lock()") Signed-off-by: Kees Cook Cc: Davidlohr Bueso Cc: Manfred Spraul Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- ipc/shm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ipc/shm.c b/ipc/shm.c index 4cd402e4cfeb..1c65fb357395 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -206,7 +206,7 @@ err: * Callers of shm_lock() must validate the status of the returned ipc * object pointer and error out as appropriate. */ - return (void *)ipcp; + return ERR_CAST(ipcp); } static inline void shm_lock_by_ptr(struct shmid_kernel *ipcp) From e6112fc300702f96374f34368513d57795fc6d23 Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Fri, 5 Oct 2018 15:51:51 -0700 Subject: [PATCH 1623/1762] mm/migrate.c: split only transparent huge pages when allocation fails split_huge_page_to_list() fails on HugeTLB pages. I was experimenting with moving 32MB contig HugeTLB pages on arm64 (with a debug patch applied) and hit the following stack trace when the kernel crashed. [ 3732.462797] Call trace: [ 3732.462835] split_huge_page_to_list+0x3b0/0x858 [ 3732.462913] migrate_pages+0x728/0xc20 [ 3732.462999] soft_offline_page+0x448/0x8b0 [ 3732.463097] __arm64_sys_madvise+0x724/0x850 [ 3732.463197] el0_svc_handler+0x74/0x110 [ 3732.463297] el0_svc+0x8/0xc [ 3732.463347] Code: d1000400 f90b0e60 f2fbd5a2 a94982a1 (f9000420) When unmap_and_move[_huge_page]() fails due to lack of memory, the splitting should happen only for transparent huge pages not for HugeTLB pages. PageTransHuge() returns true for both THP and HugeTLB pages. Hence the conditonal check should test PagesHuge() flag to make sure that given pages is not a HugeTLB one. Link: http://lkml.kernel.org/r/1537798495-4996-1-git-send-email-anshuman.khandual@arm.com Fixes: 94723aafb9 ("mm: unclutter THP migration") Signed-off-by: Anshuman Khandual Acked-by: Michal Hocko Acked-by: Naoya Horiguchi Cc: Kirill A. Shutemov Cc: Zi Yan Cc: Mike Kravetz Cc: Vlastimil Babka Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/migrate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/migrate.c b/mm/migrate.c index 9d374011c244..9ba72c2365e6 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1414,7 +1414,7 @@ retry: * we encounter them after the rest of the list * is processed. */ - if (PageTransHuge(page)) { + if (PageTransHuge(page) && !PageHuge(page)) { lock_page(page); rc = split_huge_page_to_list(page, from); unlock_page(page); From 20916d4636a9b3c1bf562b305f91d126771edaf9 Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Fri, 5 Oct 2018 15:51:54 -0700 Subject: [PATCH 1624/1762] mm/hugetlb: add mmap() encodings for 32MB and 512MB page sizes ARM64 architecture also supports 32MB and 512MB HugeTLB page sizes. This just adds mmap() system call argument encoding for them. Link: http://lkml.kernel.org/r/1537841300-6979-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Acked-by: Punit Agrawal Acked-by: Mike Kravetz Cc: Michal Hocko Cc: Will Deacon Cc: Catalin Marinas Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- include/uapi/asm-generic/hugetlb_encode.h | 2 ++ include/uapi/linux/memfd.h | 2 ++ include/uapi/linux/mman.h | 2 ++ include/uapi/linux/shm.h | 2 ++ 4 files changed, 8 insertions(+) diff --git a/include/uapi/asm-generic/hugetlb_encode.h b/include/uapi/asm-generic/hugetlb_encode.h index e4732d3c2998..b0f8e87235bd 100644 --- a/include/uapi/asm-generic/hugetlb_encode.h +++ b/include/uapi/asm-generic/hugetlb_encode.h @@ -26,7 +26,9 @@ #define HUGETLB_FLAG_ENCODE_2MB (21 << HUGETLB_FLAG_ENCODE_SHIFT) #define HUGETLB_FLAG_ENCODE_8MB (23 << HUGETLB_FLAG_ENCODE_SHIFT) #define HUGETLB_FLAG_ENCODE_16MB (24 << HUGETLB_FLAG_ENCODE_SHIFT) +#define HUGETLB_FLAG_ENCODE_32MB (25 << HUGETLB_FLAG_ENCODE_SHIFT) #define HUGETLB_FLAG_ENCODE_256MB (28 << HUGETLB_FLAG_ENCODE_SHIFT) +#define HUGETLB_FLAG_ENCODE_512MB (29 << HUGETLB_FLAG_ENCODE_SHIFT) #define HUGETLB_FLAG_ENCODE_1GB (30 << HUGETLB_FLAG_ENCODE_SHIFT) #define HUGETLB_FLAG_ENCODE_2GB (31 << HUGETLB_FLAG_ENCODE_SHIFT) #define HUGETLB_FLAG_ENCODE_16GB (34 << HUGETLB_FLAG_ENCODE_SHIFT) diff --git a/include/uapi/linux/memfd.h b/include/uapi/linux/memfd.h index 015a4c0bbb47..7a8a26751c23 100644 --- a/include/uapi/linux/memfd.h +++ b/include/uapi/linux/memfd.h @@ -25,7 +25,9 @@ #define MFD_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB #define MFD_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB #define MFD_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB +#define MFD_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB #define MFD_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB +#define MFD_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB #define MFD_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB #define MFD_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB #define MFD_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB diff --git a/include/uapi/linux/mman.h b/include/uapi/linux/mman.h index bfd5938fede6..d0f515d53299 100644 --- a/include/uapi/linux/mman.h +++ b/include/uapi/linux/mman.h @@ -28,7 +28,9 @@ #define MAP_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB #define MAP_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB #define MAP_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB +#define MAP_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB #define MAP_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB +#define MAP_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB #define MAP_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB #define MAP_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB #define MAP_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB diff --git a/include/uapi/linux/shm.h b/include/uapi/linux/shm.h index dde1344f047c..6507ad0afc81 100644 --- a/include/uapi/linux/shm.h +++ b/include/uapi/linux/shm.h @@ -65,7 +65,9 @@ struct shmid_ds { #define SHM_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB #define SHM_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB #define SHM_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB +#define SHM_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB #define SHM_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB +#define SHM_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB #define SHM_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB #define SHM_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB #define SHM_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB From f8a00cef17206ecd1b30d3d9f99e10d9fa707aa7 Mon Sep 17 00:00:00 2001 From: Jann Horn Date: Fri, 5 Oct 2018 15:51:58 -0700 Subject: [PATCH 1625/1762] proc: restrict kernel stack dumps to root Currently, you can use /proc/self/task/*/stack to cause a stack walk on a task you control while it is running on another CPU. That means that the stack can change under the stack walker. The stack walker does have guards against going completely off the rails and into random kernel memory, but it can interpret random data from your kernel stack as instruction pointers and stack pointers. This can cause exposure of kernel stack contents to userspace. Restrict the ability to inspect kernel stacks of arbitrary tasks to root in order to prevent a local attacker from exploiting racy stack unwinding to leak kernel task stack contents. See the added comment for a longer rationale. There don't seem to be any users of this userspace API that can't gracefully bail out if reading from the file fails. Therefore, I believe that this change is unlikely to break things. In the case that this patch does end up needing a revert, the next-best solution might be to fake a single-entry stack based on wchan. Link: http://lkml.kernel.org/r/20180927153316.200286-1-jannh@google.com Fixes: 2ec220e27f50 ("proc: add /proc/*/stack") Signed-off-by: Jann Horn Acked-by: Kees Cook Cc: Alexey Dobriyan Cc: Ken Chen Cc: Will Deacon Cc: Laura Abbott Cc: Andy Lutomirski Cc: Catalin Marinas Cc: Josh Poimboeuf Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H . Peter Anvin" Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- fs/proc/base.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/fs/proc/base.c b/fs/proc/base.c index ccf86f16d9f0..7e9f07bf260d 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -407,6 +407,20 @@ static int proc_pid_stack(struct seq_file *m, struct pid_namespace *ns, unsigned long *entries; int err; + /* + * The ability to racily run the kernel stack unwinder on a running task + * and then observe the unwinder output is scary; while it is useful for + * debugging kernel issues, it can also allow an attacker to leak kernel + * stack contents. + * Doing this in a manner that is at least safe from races would require + * some work to ensure that the remote task can not be scheduled; and + * even then, this would still expose the unwinder as local attack + * surface. + * Therefore, this interface is restricted to root. + */ + if (!file_ns_capable(m->file, &init_user_ns, CAP_SYS_ADMIN)) + return -EACCES; + entries = kmalloc_array(MAX_STACK_TRACE_DEPTH, sizeof(*entries), GFP_KERNEL); if (!entries) From 28e2c4bb99aa40f9d5f07ac130cbc4da0ea93079 Mon Sep 17 00:00:00 2001 From: Jann Horn Date: Fri, 5 Oct 2018 15:52:03 -0700 Subject: [PATCH 1626/1762] mm/vmstat.c: fix outdated vmstat_text 7a9cdebdcc17 ("mm: get rid of vmacache_flush_all() entirely") removed the VMACACHE_FULL_FLUSHES statistics, but didn't remove the corresponding entry in vmstat_text. This causes an out-of-bounds access in vmstat_show(). Luckily this only affects kernels with CONFIG_DEBUG_VM_VMACACHE=y, which is probably very rare. Link: http://lkml.kernel.org/r/20181001143138.95119-1-jannh@google.com Fixes: 7a9cdebdcc17 ("mm: get rid of vmacache_flush_all() entirely") Signed-off-by: Jann Horn Reviewed-by: Kees Cook Reviewed-by: Andrew Morton Acked-by: Michal Hocko Acked-by: Roman Gushchin Cc: Davidlohr Bueso Cc: Oleg Nesterov Cc: Christoph Lameter Cc: Kemi Wang Cc: Andy Lutomirski Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/vmstat.c | 1 - 1 file changed, 1 deletion(-) diff --git a/mm/vmstat.c b/mm/vmstat.c index 8ba0870ecddd..4cea7b8f519d 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1283,7 +1283,6 @@ const char * const vmstat_text[] = { #ifdef CONFIG_DEBUG_VM_VMACACHE "vmacache_find_calls", "vmacache_find_hits", - "vmacache_full_flushes", #endif #ifdef CONFIG_SWAP "swap_ra", From 58bc4c34d249bf1bc50730a9a209139347cfacfe Mon Sep 17 00:00:00 2001 From: Jann Horn Date: Fri, 5 Oct 2018 15:52:07 -0700 Subject: [PATCH 1627/1762] mm/vmstat.c: skip NR_TLB_REMOTE_FLUSH* properly 5dd0b16cdaff ("mm/vmstat: Make NR_TLB_REMOTE_FLUSH_RECEIVED available even on UP") made the availability of the NR_TLB_REMOTE_FLUSH* counters inside the kernel unconditional to reduce #ifdef soup, but (either to avoid showing dummy zero counters to userspace, or because that code was missed) didn't update the vmstat_array, meaning that all following counters would be shown with incorrect values. This only affects kernel builds with CONFIG_VM_EVENT_COUNTERS=y && CONFIG_DEBUG_TLBFLUSH=y && CONFIG_SMP=n. Link: http://lkml.kernel.org/r/20181001143138.95119-2-jannh@google.com Fixes: 5dd0b16cdaff ("mm/vmstat: Make NR_TLB_REMOTE_FLUSH_RECEIVED available even on UP") Signed-off-by: Jann Horn Reviewed-by: Kees Cook Reviewed-by: Andrew Morton Acked-by: Michal Hocko Acked-by: Roman Gushchin Cc: Davidlohr Bueso Cc: Oleg Nesterov Cc: Christoph Lameter Cc: Kemi Wang Cc: Andy Lutomirski Cc: Ingo Molnar Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/vmstat.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/vmstat.c b/mm/vmstat.c index 4cea7b8f519d..7878da76abf2 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1275,6 +1275,9 @@ const char * const vmstat_text[] = { #ifdef CONFIG_SMP "nr_tlb_remote_flush", "nr_tlb_remote_flush_received", +#else + "", /* nr_tlb_remote_flush */ + "", /* nr_tlb_remote_flush_received */ #endif /* CONFIG_SMP */ "nr_tlb_local_flush_all", "nr_tlb_local_flush_one", From b8e57efa2c98cc56c49461c4950cf026422c29e9 Mon Sep 17 00:00:00 2001 From: Kirill Tkhai Date: Fri, 5 Oct 2018 15:52:10 -0700 Subject: [PATCH 1628/1762] mm/vmscan.c: fix int overflow in callers of do_shrink_slab() do_shrink_slab() returns unsigned long value, and the placing into int variable cuts high bytes off. Then we compare ret and 0xfffffffe (since SHRINK_EMPTY is converted to ret type). Thus a large number of objects returned by do_shrink_slab() may be interpreted as SHRINK_EMPTY, if low bytes of their value are equal to 0xfffffffe. Fix that by declaration ret as unsigned long in these functions. Link: http://lkml.kernel.org/r/153813407177.17544.14888305435570723973.stgit@localhost.localdomain Signed-off-by: Kirill Tkhai Reported-by: Cyrill Gorcunov Acked-by: Cyrill Gorcunov Reviewed-by: Josef Bacik Cc: Michal Hocko Cc: Andrey Ryabinin Cc: Johannes Weiner Cc: Tetsuo Handa Cc: Shakeel Butt Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/vmscan.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index c7ce2c161225..c5ef7240cbcb 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -580,8 +580,8 @@ static unsigned long shrink_slab_memcg(gfp_t gfp_mask, int nid, struct mem_cgroup *memcg, int priority) { struct memcg_shrinker_map *map; - unsigned long freed = 0; - int ret, i; + unsigned long ret, freed = 0; + int i; if (!memcg_kmem_enabled() || !mem_cgroup_online(memcg)) return 0; @@ -677,9 +677,8 @@ static unsigned long shrink_slab(gfp_t gfp_mask, int nid, struct mem_cgroup *memcg, int priority) { + unsigned long ret, freed = 0; struct shrinker *shrinker; - unsigned long freed = 0; - int ret; if (!mem_cgroup_is_root(memcg)) return shrink_slab_memcg(gfp_mask, nid, memcg, priority); From cbe355f57c8074bc4f452e5b6e35509044c6fa23 Mon Sep 17 00:00:00 2001 From: Ashish Samant Date: Fri, 5 Oct 2018 15:52:15 -0700 Subject: [PATCH 1629/1762] ocfs2: fix locking for res->tracking and dlm->tracking_list In dlm_init_lockres() we access and modify res->tracking and dlm->tracking_list without holding dlm->track_lock. This can cause list corruptions and can end up in kernel panic. Fix this by locking res->tracking and dlm->tracking_list with dlm->track_lock instead of dlm->spinlock. Link: http://lkml.kernel.org/r/1529951192-4686-1-git-send-email-ashish.samant@oracle.com Signed-off-by: Ashish Samant Reviewed-by: Changwei Ge Acked-by: Joseph Qi Acked-by: Jun Piao Cc: Mark Fasheh Cc: Joel Becker Cc: Junxiao Bi Cc: Changwei Ge Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- fs/ocfs2/dlm/dlmmaster.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index aaca0949fe53..826f0567ec43 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -584,9 +584,9 @@ static void dlm_init_lockres(struct dlm_ctxt *dlm, res->last_used = 0; - spin_lock(&dlm->spinlock); + spin_lock(&dlm->track_lock); list_add_tail(&res->tracking, &dlm->tracking_list); - spin_unlock(&dlm->spinlock); + spin_unlock(&dlm->track_lock); memset(res->lvb, 0, DLM_LVB_LEN); memset(res->refmap, 0, sizeof(res->refmap)); From d41aa5252394c065d1f04d1ceea885b70d00c9c6 Mon Sep 17 00:00:00 2001 From: Daniel Black Date: Fri, 5 Oct 2018 15:52:19 -0700 Subject: [PATCH 1630/1762] mm: madvise(MADV_DODUMP): allow hugetlbfs pages Reproducer, assuming 2M of hugetlbfs available: Hugetlbfs mounted, size=2M and option user=testuser # mount | grep ^hugetlbfs hugetlbfs on /dev/hugepages type hugetlbfs (rw,pagesize=2M,user=dan) # sysctl vm.nr_hugepages=1 vm.nr_hugepages = 1 # grep Huge /proc/meminfo AnonHugePages: 0 kB ShmemHugePages: 0 kB HugePages_Total: 1 HugePages_Free: 1 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB Hugetlb: 2048 kB Code: #include #include #define SIZE 2*1024*1024 int main() { void *ptr; ptr = mmap(NULL, SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_HUGETLB | MAP_ANONYMOUS, -1, 0); madvise(ptr, SIZE, MADV_DONTDUMP); madvise(ptr, SIZE, MADV_DODUMP); } Compile and strace: mmap(NULL, 2097152, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_HUGETLB, -1, 0) = 0x7ff7c9200000 madvise(0x7ff7c9200000, 2097152, MADV_DONTDUMP) = 0 madvise(0x7ff7c9200000, 2097152, MADV_DODUMP) = -1 EINVAL (Invalid argument) hugetlbfs pages have VM_DONTEXPAND in the VmFlags driver pages based on author testing with analysis from Florian Weimer[1]. The inclusion of VM_DONTEXPAND into the VM_SPECIAL defination was a consequence of the large useage of VM_DONTEXPAND in device drivers. A consequence of [2] is that VM_DONTEXPAND marked pages are unable to be marked DODUMP. A user could quite legitimately madvise(MADV_DONTDUMP) their hugetlbfs memory for a while and later request that madvise(MADV_DODUMP) on the same memory. We correct this omission by allowing madvice(MADV_DODUMP) on hugetlbfs pages. [1] https://stackoverflow.com/questions/52548260/madvisedodump-on-the-same-ptr-size-as-a-successful-madvisedontdump-fails-wit [2] commit 0103bd16fb90 ("mm: prepare VM_DONTDUMP for using in drivers") Link: http://lkml.kernel.org/r/20180930054629.29150-1-daniel@linux.ibm.com Link: https://lists.launchpad.net/maria-discuss/msg05245.html Fixes: 0103bd16fb90 ("mm: prepare VM_DONTDUMP for using in drivers") Reported-by: Kenneth Penza Signed-off-by: Daniel Black Reviewed-by: Mike Kravetz Cc: Konstantin Khlebnikov Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/madvise.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/madvise.c b/mm/madvise.c index 972a9eaa898b..71d21df2a3f3 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -96,7 +96,7 @@ static long madvise_behavior(struct vm_area_struct *vma, new_flags |= VM_DONTDUMP; break; case MADV_DODUMP: - if (new_flags & VM_SPECIAL) { + if (!is_vm_hugetlb_page(vma) && new_flags & VM_SPECIAL) { error = -EINVAL; goto out; } From 329e09893909d409039f6a79757d9b80b67efe39 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 5 Oct 2018 16:21:46 -0700 Subject: [PATCH 1631/1762] treewide: Replace more open-coded allocation size multiplications As done treewide earlier, this catches several more open-coded allocation size calculations that were added to the kernel during the merge window. This performs the following mechanical transformations using Coccinelle: kvmalloc(a * b, ...) -> kvmalloc_array(a, b, ...) kvzalloc(a * b, ...) -> kvcalloc(a, b, ...) devm_kzalloc(..., a * b, ...) -> devm_kcalloc(..., a, b, ...) Signed-off-by: Kees Cook --- drivers/bluetooth/hci_qca.c | 2 +- drivers/crypto/inside-secure/safexcel.c | 8 +++++--- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 2 +- drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c | 4 ++-- drivers/hwmon/npcm750-pwm-fan.c | 2 +- drivers/md/dm-integrity.c | 3 ++- drivers/net/wireless/mediatek/mt76/usb.c | 10 +++++----- drivers/pci/controller/pcie-cadence.c | 4 ++-- drivers/tty/serial/qcom_geni_serial.c | 4 ++-- net/sched/sch_cake.c | 2 +- 10 files changed, 22 insertions(+), 19 deletions(-) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index e182f6019f68..2fee65886d50 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -1322,7 +1322,7 @@ static int qca_init_regulators(struct qca_power *qca, { int i; - qca->vreg_bulk = devm_kzalloc(qca->dev, num_vregs * + qca->vreg_bulk = devm_kcalloc(qca->dev, num_vregs, sizeof(struct regulator_bulk_data), GFP_KERNEL); if (!qca->vreg_bulk) diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c index 7e71043457a6..86c699c14f84 100644 --- a/drivers/crypto/inside-secure/safexcel.c +++ b/drivers/crypto/inside-secure/safexcel.c @@ -1044,7 +1044,8 @@ static int safexcel_probe(struct platform_device *pdev) safexcel_configure(priv); - priv->ring = devm_kzalloc(dev, priv->config.rings * sizeof(*priv->ring), + priv->ring = devm_kcalloc(dev, priv->config.rings, + sizeof(*priv->ring), GFP_KERNEL); if (!priv->ring) { ret = -ENOMEM; @@ -1063,8 +1064,9 @@ static int safexcel_probe(struct platform_device *pdev) if (ret) goto err_reg_clk; - priv->ring[i].rdr_req = devm_kzalloc(dev, - sizeof(priv->ring[i].rdr_req) * EIP197_DEFAULT_RING_SIZE, + priv->ring[i].rdr_req = devm_kcalloc(dev, + EIP197_DEFAULT_RING_SIZE, + sizeof(priv->ring[i].rdr_req), GFP_KERNEL); if (!priv->ring[i].rdr_req) { ret = -ENOMEM; diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index 0b976dfd04df..92ecb9bf982c 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -600,7 +600,7 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, } mtk_crtc->layer_nr = mtk_ddp_comp_layer_nr(mtk_crtc->ddp_comp[0]); - mtk_crtc->planes = devm_kzalloc(dev, mtk_crtc->layer_nr * + mtk_crtc->planes = devm_kcalloc(dev, mtk_crtc->layer_nr, sizeof(struct drm_plane), GFP_KERNEL); diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c index 790d39f816dc..b557687b1964 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c @@ -153,8 +153,8 @@ int msm_dss_parse_clock(struct platform_device *pdev, return 0; } - mp->clk_config = devm_kzalloc(&pdev->dev, - sizeof(struct dss_clk) * num_clk, + mp->clk_config = devm_kcalloc(&pdev->dev, + num_clk, sizeof(struct dss_clk), GFP_KERNEL); if (!mp->clk_config) return -ENOMEM; diff --git a/drivers/hwmon/npcm750-pwm-fan.c b/drivers/hwmon/npcm750-pwm-fan.c index 8474d601aa63..b998f9fbed41 100644 --- a/drivers/hwmon/npcm750-pwm-fan.c +++ b/drivers/hwmon/npcm750-pwm-fan.c @@ -908,7 +908,7 @@ static int npcm7xx_en_pwm_fan(struct device *dev, if (fan_cnt < 1) return -EINVAL; - fan_ch = devm_kzalloc(dev, sizeof(*fan_ch) * fan_cnt, GFP_KERNEL); + fan_ch = devm_kcalloc(dev, fan_cnt, sizeof(*fan_ch), GFP_KERNEL); if (!fan_ch) return -ENOMEM; diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index 378878599466..244ff5580f82 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -3462,7 +3462,8 @@ try_smaller_buffer: r = -ENOMEM; goto bad; } - ic->recalc_tags = kvmalloc((RECALC_SECTORS >> ic->sb->log2_sectors_per_block) * ic->tag_size, GFP_KERNEL); + ic->recalc_tags = kvmalloc_array(RECALC_SECTORS >> ic->sb->log2_sectors_per_block, + ic->tag_size, GFP_KERNEL); if (!ic->recalc_tags) { ti->error = "Cannot allocate tags for recalculating"; r = -ENOMEM; diff --git a/drivers/net/wireless/mediatek/mt76/usb.c b/drivers/net/wireless/mediatek/mt76/usb.c index 7780b07543bb..79e59f2379a2 100644 --- a/drivers/net/wireless/mediatek/mt76/usb.c +++ b/drivers/net/wireless/mediatek/mt76/usb.c @@ -258,7 +258,7 @@ int mt76u_buf_alloc(struct mt76_dev *dev, struct mt76u_buf *buf, if (!buf->urb) return -ENOMEM; - buf->urb->sg = devm_kzalloc(dev->dev, nsgs * sizeof(*buf->urb->sg), + buf->urb->sg = devm_kcalloc(dev->dev, nsgs, sizeof(*buf->urb->sg), gfp); if (!buf->urb->sg) return -ENOMEM; @@ -464,8 +464,8 @@ static int mt76u_alloc_rx(struct mt76_dev *dev) int i, err, nsgs; spin_lock_init(&q->lock); - q->entry = devm_kzalloc(dev->dev, - MT_NUM_RX_ENTRIES * sizeof(*q->entry), + q->entry = devm_kcalloc(dev->dev, + MT_NUM_RX_ENTRIES, sizeof(*q->entry), GFP_KERNEL); if (!q->entry) return -ENOMEM; @@ -717,8 +717,8 @@ static int mt76u_alloc_tx(struct mt76_dev *dev) INIT_LIST_HEAD(&q->swq); q->hw_idx = q2hwq(i); - q->entry = devm_kzalloc(dev->dev, - MT_NUM_TX_ENTRIES * sizeof(*q->entry), + q->entry = devm_kcalloc(dev->dev, + MT_NUM_TX_ENTRIES, sizeof(*q->entry), GFP_KERNEL); if (!q->entry) return -ENOMEM; diff --git a/drivers/pci/controller/pcie-cadence.c b/drivers/pci/controller/pcie-cadence.c index 86f1b002c846..975bcdd6b5c0 100644 --- a/drivers/pci/controller/pcie-cadence.c +++ b/drivers/pci/controller/pcie-cadence.c @@ -180,11 +180,11 @@ int cdns_pcie_init_phy(struct device *dev, struct cdns_pcie *pcie) return 0; } - phy = devm_kzalloc(dev, sizeof(*phy) * phy_count, GFP_KERNEL); + phy = devm_kcalloc(dev, phy_count, sizeof(*phy), GFP_KERNEL); if (!phy) return -ENOMEM; - link = devm_kzalloc(dev, sizeof(*link) * phy_count, GFP_KERNEL); + link = devm_kcalloc(dev, phy_count, sizeof(*link), GFP_KERNEL); if (!link) return -ENOMEM; diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c index 29ec34387246..1515074e18fb 100644 --- a/drivers/tty/serial/qcom_geni_serial.c +++ b/drivers/tty/serial/qcom_geni_serial.c @@ -868,8 +868,8 @@ static int qcom_geni_serial_port_setup(struct uart_port *uport) geni_se_init(&port->se, port->rx_wm, port->rx_rfr); geni_se_select_mode(&port->se, port->xfer_mode); if (!uart_console(uport)) { - port->rx_fifo = devm_kzalloc(uport->dev, - port->rx_fifo_depth * sizeof(u32), GFP_KERNEL); + port->rx_fifo = devm_kcalloc(uport->dev, + port->rx_fifo_depth, sizeof(u32), GFP_KERNEL); if (!port->rx_fifo) return -ENOMEM; } diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c index c07c30b916d5..793016d722ec 100644 --- a/net/sched/sch_cake.c +++ b/net/sched/sch_cake.c @@ -2644,7 +2644,7 @@ static int cake_init(struct Qdisc *sch, struct nlattr *opt, for (i = 1; i <= CAKE_QUEUES; i++) quantum_div[i] = 65535 / i; - q->tins = kvzalloc(CAKE_MAX_TINS * sizeof(struct cake_tin_data), + q->tins = kvcalloc(CAKE_MAX_TINS, sizeof(struct cake_tin_data), GFP_KERNEL); if (!q->tins) goto nomem; From dceeb47b0ed65e14de53507a8a9c32a90831cfa1 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Sat, 6 Oct 2018 11:44:19 +1000 Subject: [PATCH 1632/1762] xfs: fix data corruption w/ unaligned dedupe ranges A deduplication data corruption is Exposed by fstests generic/505 on XFS. It is caused by extending the block match range to include the partial EOF block, but then allowing unknown data beyond EOF to be considered a "match" to data in the destination file because the comparison is only made to the end of the source file. This corrupts the destination file when the source extent is shared with it. XFS only supports whole block dedupe, but we still need to appear to support whole file dedupe correctly. Hence if the dedupe request includes the last block of the souce file, don't include it in the actual XFS dedupe operation. If the rest of the range dedupes successfully, then report the partial last block as deduped, too, so that userspace sees it as a successful dedupe rather than return EINVAL because we can't dedupe unaligned blocks. Signed-off-by: Dave Chinner Reviewed-by: Darrick J. Wong Signed-off-by: Dave Chinner --- fs/xfs/xfs_reflink.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index 59da9708e9c1..f889398e25d6 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -1265,6 +1265,19 @@ xfs_reflink_zero_posteof( * will have the iolock and mmaplock held, the page cache of the out file * will be truncated, and any leases on the out file will have been broken. * This function borrows heavily from xfs_file_aio_write_checks. + * + * The VFS allows partial EOF blocks to "match" for dedupe even though it hasn't + * checked that the bytes beyond EOF physically match. Hence we cannot use the + * EOF block in the source dedupe range because it's not a complete block match, + * hence can introduce a corruption into the file that has it's + * block replaced. + * + * Despite this issue, we still need to report that range as successfully + * deduped to avoid confusing userspace with EINVAL errors on completely + * matching file data. The only time that an unaligned length will be passed to + * us is when it spans the EOF block of the source file, so if we simply mask it + * down to be block aligned here the we will dedupe everything but that partial + * EOF block. */ STATIC int xfs_reflink_remap_prep( @@ -1307,6 +1320,14 @@ xfs_reflink_remap_prep( if (ret <= 0) goto out_unlock; + /* + * If the dedupe data matches, chop off the partial EOF block + * from the source file so we don't try to dedupe the partial + * EOF block. + */ + if (is_dedupe) + *len &= ~((u64)i_blocksize(inode_in) - 1); + /* Attach dquots to dest inode before changing block map */ ret = xfs_qm_dqattach(dest); if (ret) From b39989009bdb84992915c9869f58094ed5becf10 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Sat, 6 Oct 2018 11:44:39 +1000 Subject: [PATCH 1633/1762] xfs: fix data corruption w/ unaligned reflink ranges When reflinking sub-file ranges, a data corruption can occur when the source file range includes a partial EOF block. This shares the unknown data beyond EOF into the second file at a position inside EOF, exposing stale data in the second file. XFS only supports whole block sharing, but we still need to support whole file reflink correctly. Hence if the reflink request includes the last block of the souce file, only proceed with the reflink operation if it lands at or past the destination file's current EOF. If it lands within the destination file EOF, reject the entire request with -EINVAL and make the caller go the hard way. This avoids the data corruption vector, but also avoids disruption of returning EINVAL to userspace for the common case of whole file cloning. Signed-off-by: Dave Chinner Reviewed-by: Darrick J. Wong Signed-off-by: Dave Chinner --- fs/xfs/xfs_reflink.c | 47 ++++++++++++++++++++++++++++++++------------ 1 file changed, 34 insertions(+), 13 deletions(-) diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index f889398e25d6..42ea7bab9144 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -1262,22 +1262,32 @@ xfs_reflink_zero_posteof( /* * Prepare two files for range cloning. Upon a successful return both inodes - * will have the iolock and mmaplock held, the page cache of the out file - * will be truncated, and any leases on the out file will have been broken. - * This function borrows heavily from xfs_file_aio_write_checks. + * will have the iolock and mmaplock held, the page cache of the out file will + * be truncated, and any leases on the out file will have been broken. This + * function borrows heavily from xfs_file_aio_write_checks. * * The VFS allows partial EOF blocks to "match" for dedupe even though it hasn't * checked that the bytes beyond EOF physically match. Hence we cannot use the * EOF block in the source dedupe range because it's not a complete block match, - * hence can introduce a corruption into the file that has it's - * block replaced. + * hence can introduce a corruption into the file that has it's block replaced. * - * Despite this issue, we still need to report that range as successfully - * deduped to avoid confusing userspace with EINVAL errors on completely - * matching file data. The only time that an unaligned length will be passed to - * us is when it spans the EOF block of the source file, so if we simply mask it - * down to be block aligned here the we will dedupe everything but that partial - * EOF block. + * In similar fashion, the VFS file cloning also allows partial EOF blocks to be + * "block aligned" for the purposes of cloning entire files. However, if the + * source file range includes the EOF block and it lands within the existing EOF + * of the destination file, then we can expose stale data from beyond the source + * file EOF in the destination file. + * + * XFS doesn't support partial block sharing, so in both cases we have check + * these cases ourselves. For dedupe, we can simply round the length to dedupe + * down to the previous whole block and ignore the partial EOF block. While this + * means we can't dedupe the last block of a file, this is an acceptible + * tradeoff for simplicity on implementation. + * + * For cloning, we want to share the partial EOF block if it is also the new EOF + * block of the destination file. If the partial EOF block lies inside the + * existing destination EOF, then we have to abort the clone to avoid exposing + * stale data in the destination file. Hence we reject these clone attempts with + * -EINVAL in this case. */ STATIC int xfs_reflink_remap_prep( @@ -1293,6 +1303,7 @@ xfs_reflink_remap_prep( struct inode *inode_out = file_inode(file_out); struct xfs_inode *dest = XFS_I(inode_out); bool same_inode = (inode_in == inode_out); + u64 blkmask = i_blocksize(inode_in) - 1; ssize_t ret; /* Lock both files against IO */ @@ -1325,8 +1336,18 @@ xfs_reflink_remap_prep( * from the source file so we don't try to dedupe the partial * EOF block. */ - if (is_dedupe) - *len &= ~((u64)i_blocksize(inode_in) - 1); + if (is_dedupe) { + *len &= ~blkmask; + } else if (*len & blkmask) { + /* + * The user is attempting to share a partial EOF block, + * if it's inside the destination EOF then reject it. + */ + if (pos_out + *len < i_size_read(inode_out)) { + ret = -EINVAL; + goto out_unlock; + } + } /* Attach dquots to dest inode before changing block map */ ret = xfs_qm_dqattach(dest); From 0238df646e6224016a45505d2c111a24669ebe21 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sun, 7 Oct 2018 17:26:02 +0200 Subject: [PATCH 1634/1762] Linux 4.19-rc7 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 6c3da3e10f07..9b2df076885a 100644 --- a/Makefile +++ b/Makefile @@ -2,7 +2,7 @@ VERSION = 4 PATCHLEVEL = 19 SUBLEVEL = 0 -EXTRAVERSION = -rc6 +EXTRAVERSION = -rc7 NAME = Merciless Moray # *DOCUMENTATION* From 6685b357363bfe295e3ae73665014db4aed62c58 Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Sun, 7 Oct 2018 11:31:51 +0300 Subject: [PATCH 1635/1762] percpu: stop leaking bitmap metadata blocks The commit ca460b3c9627 ("percpu: introduce bitmap metadata blocks") introduced bitmap metadata blocks. These metadata blocks are allocated whenever a new chunk is created, but they are never freed. Fix it. Fixes: ca460b3c9627 ("percpu: introduce bitmap metadata blocks") Signed-off-by: Mike Rapoport Cc: stable@vger.kernel.org Signed-off-by: Dennis Zhou --- mm/percpu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/percpu.c b/mm/percpu.c index a749d4d96e3e..4b90682623e9 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1212,6 +1212,7 @@ static void pcpu_free_chunk(struct pcpu_chunk *chunk) { if (!chunk) return; + pcpu_mem_free(chunk->md_blocks); pcpu_mem_free(chunk->bound_map); pcpu_mem_free(chunk->alloc_map); pcpu_mem_free(chunk); From 7e823644b60555f70f241274b8d0120dd919269a Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Thu, 4 Oct 2018 13:37:32 +0200 Subject: [PATCH 1636/1762] udp: Unbreak modules that rely on external __skb_recv_udp() availability Commit 2276f58ac589 ("udp: use a separate rx queue for packet reception") turned static inline __skb_recv_udp() from being a trivial helper around __skb_recv_datagram() into a UDP specific implementaion, making it EXPORT_SYMBOL_GPL() at the same time. There are external modules that got broken by __skb_recv_udp() not being visible to them. Let's unbreak them by making __skb_recv_udp EXPORT_SYMBOL(). Rationale (one of those) why this is actually "technically correct" thing to do: __skb_recv_udp() used to be an inline wrapper around __skb_recv_datagram(), which itself (still, and correctly so, I believe) is EXPORT_SYMBOL(). Cc: Paolo Abeni Cc: Eric Dumazet Fixes: 2276f58ac589 ("udp: use a separate rx queue for packet reception") Signed-off-by: Jiri Kosina Signed-off-by: David S. Miller --- net/ipv4/udp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 7d69dd6fa7e8..c32a4c16b7ff 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1627,7 +1627,7 @@ busy_check: *err = error; return NULL; } -EXPORT_SYMBOL_GPL(__skb_recv_udp); +EXPORT_SYMBOL(__skb_recv_udp); /* * This should be easy, if there is something there we From 6d4c407744dd0338da5d5d76f40dce5adabfb30a Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 7 Oct 2018 07:40:17 -0400 Subject: [PATCH 1637/1762] net: sched: cls_u32: fix hnode refcounting cls_u32.c misuses refcounts for struct tc_u_hnode - it counts references via ->hlist and via ->tp_root together. u32_destroy() drops the former and, in case when there had been links, leaves the sucker on the list. As the result, there's nothing to protect it from getting freed once links are dropped. That also makes the "is it busy" check incapable of catching the root hnode - it *is* busy (there's a reference from tp), but we don't see it as something separate. "Is it our root?" check partially covers that, but the problem exists for others' roots as well. AFAICS, the minimal fix preserving the existing behaviour (where it doesn't include oopsen, that is) would be this: * count tp->root and tp_c->hlist as separate references. I.e. have u32_init() set refcount to 2, not 1. * in u32_destroy() we always drop the former; in u32_destroy_hnode() - the latter. That way we have *all* references contributing to refcount. List removal happens in u32_destroy_hnode() (called only when ->refcnt is 1) an in u32_destroy() in case of tc_u_common going away, along with everything reachable from it. IOW, that way we know that u32_destroy_key() won't free something still on the list (or pointed to by someone's ->root). Reproducer: tc qdisc add dev eth0 ingress tc filter add dev eth0 parent ffff: protocol ip prio 100 handle 1: \ u32 divisor 1 tc filter add dev eth0 parent ffff: protocol ip prio 200 handle 2: \ u32 divisor 1 tc filter add dev eth0 parent ffff: protocol ip prio 100 \ handle 1:0:11 u32 ht 1: link 801: offset at 0 mask 0f00 shift 6 \ plus 0 eat match ip protocol 6 ff tc filter delete dev eth0 parent ffff: protocol ip prio 200 tc filter change dev eth0 parent ffff: protocol ip prio 100 \ handle 1:0:11 u32 ht 1: link 0: offset at 0 mask 0f00 shift 6 plus 0 \ eat match ip protocol 6 ff tc filter delete dev eth0 parent ffff: protocol ip prio 100 Signed-off-by: Al Viro Signed-off-by: Jamal Hadi Salim Signed-off-by: David S. Miller --- net/sched/cls_u32.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c index f218ccf1e2d9..b2c3406a2cf2 100644 --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -398,6 +398,7 @@ static int u32_init(struct tcf_proto *tp) rcu_assign_pointer(tp_c->hlist, root_ht); root_ht->tp_c = tp_c; + root_ht->refcnt++; rcu_assign_pointer(tp->root, root_ht); tp->data = tp_c; return 0; @@ -610,7 +611,7 @@ static int u32_destroy_hnode(struct tcf_proto *tp, struct tc_u_hnode *ht, struct tc_u_hnode __rcu **hn; struct tc_u_hnode *phn; - WARN_ON(ht->refcnt); + WARN_ON(--ht->refcnt); u32_clear_hnode(tp, ht, extack); @@ -649,7 +650,7 @@ static void u32_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack) WARN_ON(root_ht == NULL); - if (root_ht && --root_ht->refcnt == 0) + if (root_ht && --root_ht->refcnt == 1) u32_destroy_hnode(tp, root_ht, extack); if (--tp_c->refcnt == 0) { @@ -698,7 +699,6 @@ static int u32_delete(struct tcf_proto *tp, void *arg, bool *last, } if (ht->refcnt == 1) { - ht->refcnt--; u32_destroy_hnode(tp, ht, extack); } else { NL_SET_ERR_MSG_MOD(extack, "Can not delete in-use filter"); @@ -708,11 +708,11 @@ static int u32_delete(struct tcf_proto *tp, void *arg, bool *last, out: *last = true; if (root_ht) { - if (root_ht->refcnt > 1) { + if (root_ht->refcnt > 2) { *last = false; goto ret; } - if (root_ht->refcnt == 1) { + if (root_ht->refcnt == 2) { if (!ht_empty(root_ht)) { *last = false; goto ret; From a21048c8ec7caf4def353b00b75bf75535deba80 Mon Sep 17 00:00:00 2001 From: Eugene Syromiatnikov Date: Sun, 7 Oct 2018 16:57:31 +0200 Subject: [PATCH 1638/1762] net/smc: use __aligned_u64 for 64-bit smc_diag fields Commit 4b1b7d3b30a6 ("net/smc: add SMC-D diag support") introduced new UAPI-exposed structure, struct smcd_diag_dmbinfo. However, it's not usable by compat binaries, as it has different layout there. Probably, the most straightforward fix that will avoid similar issues in the future is to use __aligned_u64 for 64-bit fields. Fixes: 4b1b7d3b30a6 ("net/smc: add SMC-D diag support") Signed-off-by: Eugene Syromiatnikov Signed-off-by: David S. Miller --- include/uapi/linux/smc_diag.h | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/include/uapi/linux/smc_diag.h b/include/uapi/linux/smc_diag.h index ac9e8c96d9bd..6180c6d95309 100644 --- a/include/uapi/linux/smc_diag.h +++ b/include/uapi/linux/smc_diag.h @@ -18,14 +18,14 @@ struct smc_diag_req { * on the internal clcsock, and more SMC-related socket data */ struct smc_diag_msg { - __u8 diag_family; - __u8 diag_state; - __u8 diag_mode; - __u8 diag_shutdown; + __u8 diag_family; + __u8 diag_state; + __u8 diag_mode; + __u8 diag_shutdown; struct inet_diag_sockid id; - __u32 diag_uid; - __u64 diag_inode; + __u32 diag_uid; + __aligned_u64 diag_inode; }; /* Mode of a connection */ @@ -99,11 +99,11 @@ struct smc_diag_fallback { }; struct smcd_diag_dmbinfo { /* SMC-D Socket internals */ - __u32 linkid; /* Link identifier */ - __u64 peer_gid; /* Peer GID */ - __u64 my_gid; /* My GID */ - __u64 token; /* Token of DMB */ - __u64 peer_token; /* Token of remote DMBE */ + __u32 linkid; /* Link identifier */ + __aligned_u64 peer_gid; /* Peer GID */ + __aligned_u64 my_gid; /* My GID */ + __aligned_u64 token; /* Token of DMB */ + __aligned_u64 peer_token; /* Token of remote DMBE */ }; #endif /* _UAPI_SMC_DIAG_H_ */ From d4f0006a08f52b5320f038780286ef312535fc64 Mon Sep 17 00:00:00 2001 From: Eugene Syromiatnikov Date: Sun, 7 Oct 2018 16:57:37 +0200 Subject: [PATCH 1639/1762] net/smc: retain old name for diag_mode field Commit c601171d7a60 ("net/smc: provide smc mode in smc_diag.c") changed the name of diag_fallback field of struct smc_diag_msg structure to diag_mode. However, this structure is a part of UAPI, and this change breaks user space applications that use it ([1], for example). Since the new name is more suitable, convert the field to a union that provides access to the data via both the new and the old name. [1] https://gitlab.com/strace/strace/blob/v4.24/netlink_smc_diag.c#L165 Fixes: c601171d7a60 ("net/smc: provide smc mode in smc_diag.c") Signed-off-by: Eugene Syromiatnikov Signed-off-by: David S. Miller --- include/uapi/linux/smc_diag.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/include/uapi/linux/smc_diag.h b/include/uapi/linux/smc_diag.h index 6180c6d95309..8cb3a6fef553 100644 --- a/include/uapi/linux/smc_diag.h +++ b/include/uapi/linux/smc_diag.h @@ -20,7 +20,10 @@ struct smc_diag_req { struct smc_diag_msg { __u8 diag_family; __u8 diag_state; - __u8 diag_mode; + union { + __u8 diag_mode; + __u8 diag_fallback; /* the old name of the field */ + }; __u8 diag_shutdown; struct inet_diag_sockid id; From 76ebebd2464c5c8a4453c98b6dbf9c95a599e810 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Fri, 17 Aug 2018 15:19:37 -0400 Subject: [PATCH 1640/1762] mach64: detect the dot clock divider correctly on sparc MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On Sun Ultra 5, it happens that the dot clock is not set up properly for some videomodes. For example, if we set the videomode "r1024x768x60" in the firmware, Linux would incorrectly set a videomode with refresh rate 180Hz when booting (suprisingly, my LCD monitor can display it, although display quality is very low). The reason is this: Older mach64 cards set the divider in the register VCLK_POST_DIV. The register has four 2-bit fields (the field that is actually used is specified in the lowest two bits of the register CLOCK_CNTL). The 2 bits select divider "1, 2, 4, 8". On newer mach64 cards, there's another bit added - the top four bits of PLL_EXT_CNTL extend the divider selection, so we have possible dividers "1, 2, 4, 8, 3, 5, 6, 12". The Linux driver clears the top four bits of PLL_EXT_CNTL and never sets them, so it can work regardless if the card supports them. However, the sparc64 firmware may set these extended dividers during boot - and the mach64 driver detects incorrect dot clock in this case. This patch makes the driver read the additional divider bit from PLL_EXT_CNTL and calculate the initial refresh rate properly. Signed-off-by: Mikulas Patocka Cc: stable@vger.kernel.org Acked-by: David S. Miller Reviewed-by: Ville Syrjälä Signed-off-by: David S. Miller --- drivers/video/fbdev/aty/atyfb.h | 3 ++- drivers/video/fbdev/aty/atyfb_base.c | 7 ++++--- drivers/video/fbdev/aty/mach64_ct.c | 10 +++++----- 3 files changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/video/fbdev/aty/atyfb.h b/drivers/video/fbdev/aty/atyfb.h index 8235b285dbb2..d09bab3bf224 100644 --- a/drivers/video/fbdev/aty/atyfb.h +++ b/drivers/video/fbdev/aty/atyfb.h @@ -333,6 +333,8 @@ extern const struct aty_pll_ops aty_pll_ct; /* Integrated */ extern void aty_set_pll_ct(const struct fb_info *info, const union aty_pll *pll); extern u8 aty_ld_pll_ct(int offset, const struct atyfb_par *par); +extern const u8 aty_postdividers[8]; + /* * Hardware cursor support @@ -359,7 +361,6 @@ static inline void wait_for_idle(struct atyfb_par *par) extern void aty_reset_engine(const struct atyfb_par *par); extern void aty_init_engine(struct atyfb_par *par, struct fb_info *info); -extern u8 aty_ld_pll_ct(int offset, const struct atyfb_par *par); void atyfb_copyarea(struct fb_info *info, const struct fb_copyarea *area); void atyfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect); diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c index a9a8272f7a6e..05111e90f168 100644 --- a/drivers/video/fbdev/aty/atyfb_base.c +++ b/drivers/video/fbdev/aty/atyfb_base.c @@ -3087,17 +3087,18 @@ static int atyfb_setup_sparc(struct pci_dev *pdev, struct fb_info *info, /* * PLL Reference Divider M: */ - M = pll_regs[2]; + M = pll_regs[PLL_REF_DIV]; /* * PLL Feedback Divider N (Dependent on CLOCK_CNTL): */ - N = pll_regs[7 + (clock_cntl & 3)]; + N = pll_regs[VCLK0_FB_DIV + (clock_cntl & 3)]; /* * PLL Post Divider P (Dependent on CLOCK_CNTL): */ - P = 1 << (pll_regs[6] >> ((clock_cntl & 3) << 1)); + P = aty_postdividers[((pll_regs[VCLK_POST_DIV] >> ((clock_cntl & 3) << 1)) & 3) | + ((pll_regs[PLL_EXT_CNTL] >> (2 + (clock_cntl & 3))) & 4)]; /* * PLL Divider Q: diff --git a/drivers/video/fbdev/aty/mach64_ct.c b/drivers/video/fbdev/aty/mach64_ct.c index 74a62aa193c0..f87cc81f4fa2 100644 --- a/drivers/video/fbdev/aty/mach64_ct.c +++ b/drivers/video/fbdev/aty/mach64_ct.c @@ -115,7 +115,7 @@ static void aty_st_pll_ct(int offset, u8 val, const struct atyfb_par *par) */ #define Maximum_DSP_PRECISION 7 -static u8 postdividers[] = {1,2,4,8,3}; +const u8 aty_postdividers[8] = {1,2,4,8,3,5,6,12}; static int aty_dsp_gt(const struct fb_info *info, u32 bpp, struct pll_ct *pll) { @@ -222,7 +222,7 @@ static int aty_valid_pll_ct(const struct fb_info *info, u32 vclk_per, struct pll pll->vclk_post_div += (q < 64*8); pll->vclk_post_div += (q < 32*8); } - pll->vclk_post_div_real = postdividers[pll->vclk_post_div]; + pll->vclk_post_div_real = aty_postdividers[pll->vclk_post_div]; // pll->vclk_post_div <<= 6; pll->vclk_fb_div = q * pll->vclk_post_div_real / 8; pllvclk = (1000000 * 2 * pll->vclk_fb_div) / @@ -513,7 +513,7 @@ static int aty_init_pll_ct(const struct fb_info *info, union aty_pll *pll) u8 mclk_fb_div, pll_ext_cntl; pll->ct.pll_ref_div = aty_ld_pll_ct(PLL_REF_DIV, par); pll_ext_cntl = aty_ld_pll_ct(PLL_EXT_CNTL, par); - pll->ct.xclk_post_div_real = postdividers[pll_ext_cntl & 0x07]; + pll->ct.xclk_post_div_real = aty_postdividers[pll_ext_cntl & 0x07]; mclk_fb_div = aty_ld_pll_ct(MCLK_FB_DIV, par); if (pll_ext_cntl & PLL_MFB_TIMES_4_2B) mclk_fb_div <<= 1; @@ -535,7 +535,7 @@ static int aty_init_pll_ct(const struct fb_info *info, union aty_pll *pll) xpost_div += (q < 64*8); xpost_div += (q < 32*8); } - pll->ct.xclk_post_div_real = postdividers[xpost_div]; + pll->ct.xclk_post_div_real = aty_postdividers[xpost_div]; pll->ct.mclk_fb_div = q * pll->ct.xclk_post_div_real / 8; #ifdef CONFIG_PPC @@ -584,7 +584,7 @@ static int aty_init_pll_ct(const struct fb_info *info, union aty_pll *pll) mpost_div += (q < 64*8); mpost_div += (q < 32*8); } - sclk_post_div_real = postdividers[mpost_div]; + sclk_post_div_real = aty_postdividers[mpost_div]; pll->ct.sclk_fb_div = q * sclk_post_div_real / 8; pll->ct.spll_cntl2 = mpost_div << 4; #ifdef DEBUG From 0b9871a3a8cc7234c285b5d9bf66cc6712cfee7c Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Tue, 28 Aug 2018 10:44:32 -0500 Subject: [PATCH 1641/1762] sparc: Convert to using %pOFn instead of device_node.name In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Cc: "David S. Miller" Cc: sparclinux@vger.kernel.org Signed-off-by: Rob Herring Signed-off-by: David S. Miller --- arch/sparc/kernel/auxio_64.c | 4 +-- arch/sparc/kernel/power.c | 4 +-- arch/sparc/kernel/prom_32.c | 26 +++++++------- arch/sparc/kernel/prom_64.c | 68 ++++++++++++++++++------------------ 4 files changed, 51 insertions(+), 51 deletions(-) diff --git a/arch/sparc/kernel/auxio_64.c b/arch/sparc/kernel/auxio_64.c index 4e8f56c3793c..cc42225c20f3 100644 --- a/arch/sparc/kernel/auxio_64.c +++ b/arch/sparc/kernel/auxio_64.c @@ -115,8 +115,8 @@ static int auxio_probe(struct platform_device *dev) auxio_devtype = AUXIO_TYPE_SBUS; size = 1; } else { - printk("auxio: Unknown parent bus type [%s]\n", - dp->parent->name); + printk("auxio: Unknown parent bus type [%pOFn]\n", + dp->parent); return -ENODEV; } auxio_register = of_ioremap(&dev->resource[0], 0, size, "auxio"); diff --git a/arch/sparc/kernel/power.c b/arch/sparc/kernel/power.c index 92627abce311..d941875dd718 100644 --- a/arch/sparc/kernel/power.c +++ b/arch/sparc/kernel/power.c @@ -41,8 +41,8 @@ static int power_probe(struct platform_device *op) power_reg = of_ioremap(res, 0, 0x4, "power"); - printk(KERN_INFO "%s: Control reg at %llx\n", - op->dev.of_node->name, res->start); + printk(KERN_INFO "%pOFn: Control reg at %llx\n", + op->dev.of_node, res->start); if (has_button_interrupt(irq, op->dev.of_node)) { if (request_irq(irq, diff --git a/arch/sparc/kernel/prom_32.c b/arch/sparc/kernel/prom_32.c index b51cbb9e87dc..17c87d29ff20 100644 --- a/arch/sparc/kernel/prom_32.c +++ b/arch/sparc/kernel/prom_32.c @@ -68,8 +68,8 @@ static void __init sparc32_path_component(struct device_node *dp, char *tmp_buf) return; regs = rprop->value; - sprintf(tmp_buf, "%s@%x,%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%x,%x", + dp, regs->which_io, regs->phys_addr); } @@ -84,8 +84,8 @@ static void __init sbus_path_component(struct device_node *dp, char *tmp_buf) return; regs = prop->value; - sprintf(tmp_buf, "%s@%x,%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%x,%x", + dp, regs->which_io, regs->phys_addr); } @@ -104,13 +104,13 @@ static void __init pci_path_component(struct device_node *dp, char *tmp_buf) regs = prop->value; devfn = (regs->phys_hi >> 8) & 0xff; if (devfn & 0x07) { - sprintf(tmp_buf, "%s@%x,%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%x,%x", + dp, devfn >> 3, devfn & 0x07); } else { - sprintf(tmp_buf, "%s@%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%x", + dp, devfn >> 3); } } @@ -127,8 +127,8 @@ static void __init ebus_path_component(struct device_node *dp, char *tmp_buf) regs = prop->value; - sprintf(tmp_buf, "%s@%x,%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%x,%x", + dp, regs->which_io, regs->phys_addr); } @@ -167,8 +167,8 @@ static void __init ambapp_path_component(struct device_node *dp, char *tmp_buf) return; device = prop->value; - sprintf(tmp_buf, "%s:%d:%d@%x,%x", - dp->name, *vendor, *device, + sprintf(tmp_buf, "%pOFn:%d:%d@%x,%x", + dp, *vendor, *device, *intr, reg0); } @@ -201,7 +201,7 @@ char * __init build_path_component(struct device_node *dp) tmp_buf[0] = '\0'; __build_path_component(dp, tmp_buf); if (tmp_buf[0] == '\0') - strcpy(tmp_buf, dp->name); + snprintf(tmp_buf, sizeof(tmp_buf), "%pOFn", dp); n = prom_early_alloc(strlen(tmp_buf) + 1); strcpy(n, tmp_buf); diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c index baeaeed64993..6220411ce8fc 100644 --- a/arch/sparc/kernel/prom_64.c +++ b/arch/sparc/kernel/prom_64.c @@ -82,8 +82,8 @@ static void __init sun4v_path_component(struct device_node *dp, char *tmp_buf) regs = rprop->value; if (!of_node_is_root(dp->parent)) { - sprintf(tmp_buf, "%s@%x,%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%x,%x", + dp, (unsigned int) (regs->phys_addr >> 32UL), (unsigned int) (regs->phys_addr & 0xffffffffUL)); return; @@ -97,17 +97,17 @@ static void __init sun4v_path_component(struct device_node *dp, char *tmp_buf) const char *prefix = (type == 0) ? "m" : "i"; if (low_bits) - sprintf(tmp_buf, "%s@%s%x,%x", - dp->name, prefix, + sprintf(tmp_buf, "%pOFn@%s%x,%x", + dp, prefix, high_bits, low_bits); else - sprintf(tmp_buf, "%s@%s%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%s%x", + dp, prefix, high_bits); } else if (type == 12) { - sprintf(tmp_buf, "%s@%x", - dp->name, high_bits); + sprintf(tmp_buf, "%pOFn@%x", + dp, high_bits); } } @@ -122,8 +122,8 @@ static void __init sun4u_path_component(struct device_node *dp, char *tmp_buf) regs = prop->value; if (!of_node_is_root(dp->parent)) { - sprintf(tmp_buf, "%s@%x,%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%x,%x", + dp, (unsigned int) (regs->phys_addr >> 32UL), (unsigned int) (regs->phys_addr & 0xffffffffUL)); return; @@ -138,8 +138,8 @@ static void __init sun4u_path_component(struct device_node *dp, char *tmp_buf) if (tlb_type >= cheetah) mask = 0x7fffff; - sprintf(tmp_buf, "%s@%x,%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%x,%x", + dp, *(u32 *)prop->value, (unsigned int) (regs->phys_addr & mask)); } @@ -156,8 +156,8 @@ static void __init sbus_path_component(struct device_node *dp, char *tmp_buf) return; regs = prop->value; - sprintf(tmp_buf, "%s@%x,%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%x,%x", + dp, regs->which_io, regs->phys_addr); } @@ -176,13 +176,13 @@ static void __init pci_path_component(struct device_node *dp, char *tmp_buf) regs = prop->value; devfn = (regs->phys_hi >> 8) & 0xff; if (devfn & 0x07) { - sprintf(tmp_buf, "%s@%x,%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%x,%x", + dp, devfn >> 3, devfn & 0x07); } else { - sprintf(tmp_buf, "%s@%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%x", + dp, devfn >> 3); } } @@ -203,8 +203,8 @@ static void __init upa_path_component(struct device_node *dp, char *tmp_buf) if (!prop) return; - sprintf(tmp_buf, "%s@%x,%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%x,%x", + dp, *(u32 *) prop->value, (unsigned int) (regs->phys_addr & 0xffffffffUL)); } @@ -221,7 +221,7 @@ static void __init vdev_path_component(struct device_node *dp, char *tmp_buf) regs = prop->value; - sprintf(tmp_buf, "%s@%x", dp->name, *regs); + sprintf(tmp_buf, "%pOFn@%x", dp, *regs); } /* "name@addrhi,addrlo" */ @@ -236,8 +236,8 @@ static void __init ebus_path_component(struct device_node *dp, char *tmp_buf) regs = prop->value; - sprintf(tmp_buf, "%s@%x,%x", - dp->name, + sprintf(tmp_buf, "%pOFn@%x,%x", + dp, (unsigned int) (regs->phys_addr >> 32UL), (unsigned int) (regs->phys_addr & 0xffffffffUL)); } @@ -257,8 +257,8 @@ static void __init i2c_path_component(struct device_node *dp, char *tmp_buf) /* This actually isn't right... should look at the #address-cells * property of the i2c bus node etc. etc. */ - sprintf(tmp_buf, "%s@%x,%x", - dp->name, regs[0], regs[1]); + sprintf(tmp_buf, "%pOFn@%x,%x", + dp, regs[0], regs[1]); } /* "name@reg0[,reg1]" */ @@ -274,11 +274,11 @@ static void __init usb_path_component(struct device_node *dp, char *tmp_buf) regs = prop->value; if (prop->length == sizeof(u32) || regs[1] == 1) { - sprintf(tmp_buf, "%s@%x", - dp->name, regs[0]); + sprintf(tmp_buf, "%pOFn@%x", + dp, regs[0]); } else { - sprintf(tmp_buf, "%s@%x,%x", - dp->name, regs[0], regs[1]); + sprintf(tmp_buf, "%pOFn@%x,%x", + dp, regs[0], regs[1]); } } @@ -295,11 +295,11 @@ static void __init ieee1394_path_component(struct device_node *dp, char *tmp_buf regs = prop->value; if (regs[2] || regs[3]) { - sprintf(tmp_buf, "%s@%08x%08x,%04x%08x", - dp->name, regs[0], regs[1], regs[2], regs[3]); + sprintf(tmp_buf, "%pOFn@%08x%08x,%04x%08x", + dp, regs[0], regs[1], regs[2], regs[3]); } else { - sprintf(tmp_buf, "%s@%08x%08x", - dp->name, regs[0], regs[1]); + sprintf(tmp_buf, "%pOFn@%08x%08x", + dp, regs[0], regs[1]); } } @@ -361,7 +361,7 @@ char * __init build_path_component(struct device_node *dp) tmp_buf[0] = '\0'; __build_path_component(dp, tmp_buf); if (tmp_buf[0] == '\0') - strcpy(tmp_buf, dp->name); + snprintf(tmp_buf, sizeof(tmp_buf), "%pOFn", dp); n = prom_early_alloc(strlen(tmp_buf) + 1); strcpy(n, tmp_buf); From df58f37b5d8f883fb18ba85e8d9a624154879832 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Wed, 29 Aug 2018 15:03:37 -0500 Subject: [PATCH 1642/1762] sbus: Use of_get_child_by_name helper Use the of_get_child_by_name() helper instead of open coding searching for the '/options' node. This removes directly accessing the name pointer as well. Cc: "David S. Miller" Cc: sparclinux@vger.kernel.org Signed-off-by: Rob Herring Signed-off-by: David S. Miller --- drivers/sbus/char/openprom.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c index 7b31f19ade83..050879a2ddef 100644 --- a/drivers/sbus/char/openprom.c +++ b/drivers/sbus/char/openprom.c @@ -715,22 +715,13 @@ static struct miscdevice openprom_dev = { static int __init openprom_init(void) { - struct device_node *dp; int err; err = misc_register(&openprom_dev); if (err) return err; - dp = of_find_node_by_path("/"); - dp = dp->child; - while (dp) { - if (!strcmp(dp->name, "options")) - break; - dp = dp->sibling; - } - options_node = dp; - + options_node = of_get_child_by_name(of_find_node_by_path("/"), "options"); if (!options_node) { misc_deregister(&openprom_dev); return -EIO; From 31a43fa7945a1de8c550b35c211be5670e32f12b Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 5 Sep 2018 15:03:51 -0700 Subject: [PATCH 1643/1762] sparc64: viohs: Remove VLA usage In the quest to remove all stack VLA usage from the kernel[1], this allocates a fixed size array for the maximum number of cookies and adds a runtime sanity check. [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1 RqZWA@mail.gmail.com Signed-off-by: Kees Cook Signed-off-by: David S. Miller --- arch/sparc/kernel/viohs.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/sparc/kernel/viohs.c b/arch/sparc/kernel/viohs.c index 635d67ffc9a3..7db5aabe9708 100644 --- a/arch/sparc/kernel/viohs.c +++ b/arch/sparc/kernel/viohs.c @@ -180,11 +180,17 @@ static int send_dreg(struct vio_driver_state *vio) struct vio_dring_register pkt; char all[sizeof(struct vio_dring_register) + (sizeof(struct ldc_trans_cookie) * - dr->ncookies)]; + VIO_MAX_RING_COOKIES)]; } u; + size_t bytes = sizeof(struct vio_dring_register) + + (sizeof(struct ldc_trans_cookie) * + dr->ncookies); int i; - memset(&u, 0, sizeof(u)); + if (WARN_ON(bytes > sizeof(u))) + return -EINVAL; + + memset(&u, 0, bytes); init_tag(&u.pkt.tag, VIO_TYPE_CTRL, VIO_SUBTYPE_INFO, VIO_DRING_REG); u.pkt.dring_ident = 0; u.pkt.num_descr = dr->num_entries; @@ -206,7 +212,7 @@ static int send_dreg(struct vio_driver_state *vio) (unsigned long long) u.pkt.cookies[i].cookie_size); } - return send_ctrl(vio, &u.pkt.tag, sizeof(u)); + return send_ctrl(vio, &u.pkt.tag, bytes); } static int send_rdx(struct vio_driver_state *vio) From 16e2a9d396c140d9a47d6b22e2a631f36c31e844 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Fri, 7 Sep 2018 11:35:00 +0100 Subject: [PATCH 1644/1762] oradax: remove redundant null check before kfree A null check before a kfree is redundant, so remove it. Signed-off-by: Colin Ian King Signed-off-by: David S. Miller --- drivers/sbus/char/oradax.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/sbus/char/oradax.c b/drivers/sbus/char/oradax.c index 524f9ea62e52..6516bc3cb58b 100644 --- a/drivers/sbus/char/oradax.c +++ b/drivers/sbus/char/oradax.c @@ -689,8 +689,7 @@ static int dax_open(struct inode *inode, struct file *f) alloc_error: kfree(ctx->ccb_buf); done: - if (ctx != NULL) - kfree(ctx); + kfree(ctx); return -ENOMEM; } From 8cf7765d33ae894cd7722502fbb737efad0eaa9b Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Wed, 12 Sep 2018 12:39:13 +0900 Subject: [PATCH 1645/1762] sparc: vdso: clean-up vdso Makefile arch/sparc/vdso/Makefile is a replica of arch/x86/entry/vdso/Makefile. Clean-up the Makefile in the same way as I did for x86: - Remove unnecessary export - Put the generated linker script to $(obj)/ instead of $(src)/ - Simplify cmd_vdso2c The corresponding x86 commits are: - 61615faf0a89 ("x86/build/vdso: Remove unnecessary export in Makefile") - 1742ed2088cc ("x86/build/vdso: Put generated linker scripts to $(obj)/") - c5fcdbf15523 ("x86/build/vdso: Simplify 'cmd_vdso2c'") Signed-off-by: Masahiro Yamada Signed-off-by: David S. Miller --- arch/sparc/vdso/Makefile | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile index dd0b5a92ffd0..dc85570d8839 100644 --- a/arch/sparc/vdso/Makefile +++ b/arch/sparc/vdso/Makefile @@ -31,23 +31,21 @@ obj-y += $(vdso_img_objs) targets += $(vdso_img_cfiles) targets += $(vdso_img_sodbg) $(vdso_img-y:%=vdso%.so) -export CPPFLAGS_vdso.lds += -P -C +CPPFLAGS_vdso.lds += -P -C VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \ -Wl,--no-undefined \ -Wl,-z,max-page-size=8192 -Wl,-z,common-page-size=8192 \ $(DISABLE_LTO) -$(obj)/vdso64.so.dbg: $(src)/vdso.lds $(vobjs) FORCE +$(obj)/vdso64.so.dbg: $(obj)/vdso.lds $(vobjs) FORCE $(call if_changed,vdso) HOST_EXTRACFLAGS += -I$(srctree)/tools/include hostprogs-y += vdso2c quiet_cmd_vdso2c = VDSO2C $@ -define cmd_vdso2c - $(obj)/vdso2c $< $(<:%.dbg=%) $@ -endef + cmd_vdso2c = $(obj)/vdso2c $< $(<:%.dbg=%) $@ $(obj)/vdso-image-%.c: $(obj)/vdso%.so.dbg $(obj)/vdso%.so $(obj)/vdso2c FORCE $(call if_changed,vdso2c) From c4beb225f93a2fdaffbe2a610eccb0f6c86b3e45 Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Tue, 2 Oct 2018 12:15:17 +0200 Subject: [PATCH 1646/1762] sparc32: fix fall-through annotation Replace "fallthru" with a proper "fall through" annotation. This fix is part of the ongoing efforts to enabling -Wimplicit-fallthrough Signed-off-by: Gustavo A. R. Silva Signed-off-by: David S. Miller --- arch/sparc/kernel/kgdb_32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sparc/kernel/kgdb_32.c b/arch/sparc/kernel/kgdb_32.c index 5868fc333ea8..639c8e54530a 100644 --- a/arch/sparc/kernel/kgdb_32.c +++ b/arch/sparc/kernel/kgdb_32.c @@ -122,7 +122,7 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code, linux_regs->pc = addr; linux_regs->npc = addr + 4; } - /* fallthru */ + /* fall through */ case 'D': case 'k': From b7dc10b64f6190a008f05baf697d4d8fa9b8ed51 Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Tue, 2 Oct 2018 12:19:54 +0200 Subject: [PATCH 1647/1762] sparc64: fix fall-through annotation Replace "fallthru" with a proper "fall through" annotation. This fix is part of the ongoing efforts to enabling -Wimplicit-fallthrough Signed-off-by: Gustavo A. R. Silva Signed-off-by: David S. Miller --- arch/sparc/kernel/kgdb_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sparc/kernel/kgdb_64.c b/arch/sparc/kernel/kgdb_64.c index d5f7dc6323d5..a68bbddbdba4 100644 --- a/arch/sparc/kernel/kgdb_64.c +++ b/arch/sparc/kernel/kgdb_64.c @@ -148,7 +148,7 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code, linux_regs->tpc = addr; linux_regs->tnpc = addr + 4; } - /* fallthru */ + /* fall through */ case 'D': case 'k': From cc65fb650c682e3b43d50202a0f01da7dc11e647 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Wed, 3 Oct 2018 21:34:35 +0200 Subject: [PATCH 1648/1762] ASoC: Add device tree documentation file for wm8782 stereo DAC Add a device tree documentation file for the wm8782 stereo DAC to describe the regulator handles. Signed-off-by: Daniel Mack Acked-by: Charles Keepax Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/wm8782.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/wm8782.txt diff --git a/Documentation/devicetree/bindings/sound/wm8782.txt b/Documentation/devicetree/bindings/sound/wm8782.txt new file mode 100644 index 000000000000..256cdec6ec4d --- /dev/null +++ b/Documentation/devicetree/bindings/sound/wm8782.txt @@ -0,0 +1,17 @@ +WM8782 stereo ADC + +This device does not have any control interface or reset pins. + +Required properties: + + - compatible : "wlf,wm8782" + - Vdda-supply : phandle to a regulator for the analog power supply (2.7V - 5.5V) + - Vdd-supply : phandle to a regulator for the digital power supply (2.7V - 3.6V) + +Example: + +wm8782: stereo-adc { + compatible = "wlf,wm8782"; + Vdda-supply = <&vdda_supply>; + Vdd-supply = <&vdd_supply>; +}; From 7454a21c13f7ce9bf1a4f9b639039b78462cec09 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Wed, 3 Oct 2018 21:34:36 +0200 Subject: [PATCH 1649/1762] ASoC: wm8782: add support for regulators Lookup regulators for Vdd and Vdda during probe, and enable them when the component is linked. Signed-off-by: Daniel Mack Signed-off-by: Mark Brown --- sound/soc/codecs/wm8782.c | 63 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) diff --git a/sound/soc/codecs/wm8782.c b/sound/soc/codecs/wm8782.c index 317db9a149a7..cf2cdbece122 100644 --- a/sound/soc/codecs/wm8782.c +++ b/sound/soc/codecs/wm8782.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -50,7 +51,51 @@ static struct snd_soc_dai_driver wm8782_dai = { }, }; +/* regulator power supply names */ +static const char *supply_names[] = { + "Vdda", /* analog supply, 2.7V - 3.6V */ + "Vdd", /* digital supply, 2.7V - 5.5V */ +}; + +struct wm8782_priv { + struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)]; +}; + +static int wm8782_soc_probe(struct snd_soc_component *component) +{ + struct wm8782_priv *priv = snd_soc_component_get_drvdata(component); + return regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies); +} + +static void wm8782_soc_remove(struct snd_soc_component *component) +{ + struct wm8782_priv *priv = snd_soc_component_get_drvdata(component); + regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies); +} + +#ifdef CONFIG_PM +static int wm8782_soc_suspend(struct snd_soc_component *component) +{ + struct wm8782_priv *priv = snd_soc_component_get_drvdata(component); + regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies); + return 0; +} + +static int wm8782_soc_resume(struct snd_soc_component *component) +{ + struct wm8782_priv *priv = snd_soc_component_get_drvdata(component); + return regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies); +} +#else +#define wm8782_soc_suspend NULL +#define wm8782_soc_resume NULL +#endif /* CONFIG_PM */ + static const struct snd_soc_component_driver soc_component_dev_wm8782 = { + .probe = wm8782_soc_probe, + .remove = wm8782_soc_remove, + .suspend = wm8782_soc_suspend, + .resume = wm8782_soc_resume, .dapm_widgets = wm8782_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(wm8782_dapm_widgets), .dapm_routes = wm8782_dapm_routes, @@ -63,6 +108,24 @@ static const struct snd_soc_component_driver soc_component_dev_wm8782 = { static int wm8782_probe(struct platform_device *pdev) { + struct device *dev = &pdev->dev; + struct wm8782_priv *priv; + int ret, i; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + dev_set_drvdata(dev, priv); + + for (i = 0; i < ARRAY_SIZE(supply_names); i++) + priv->supplies[i].supply = supply_names[i]; + + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(priv->supplies), + priv->supplies); + if (ret < 0) + return ret; + return devm_snd_soc_register_component(&pdev->dev, &soc_component_dev_wm8782, &wm8782_dai, 1); } From 5271953cad31b97dea80f848c16e96ad66401199 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 4 Oct 2018 11:10:51 +0100 Subject: [PATCH 1650/1762] rxrpc: Use the UDP encap_rcv hook Use the UDP encap_rcv hook to cut the bit out of the rxrpc packet reception in which a packet is placed onto the UDP receive queue and then immediately removed again by rxrpc. Going via the queue in this manner seems like it should be unnecessary. This does, however, require the invention of a value to place in encap_type as that's one of the conditions to switch packets out to the encap_rcv hook. Possibly the value doesn't actually matter for anything other than sockopts on the UDP socket, which aren't accessible outside of rxrpc anyway. This seems to cut a bit of time out of the time elapsed between each sk_buff being timestamped and turning up in rxrpc (the final number in the following trace excerpts). I measured this by making the rxrpc_rx_packet trace point print the time elapsed between the skb being timestamped and the current time (in ns), e.g.: ... 424.278721: rxrpc_rx_packet: ... ACK 25026 So doing a 512MiB DIO read from my test server, with an unmodified kernel: N min max sum mean stddev 27605 2626 7581 7.83992e+07 2840.04 181.029 and with the patch applied: N min max sum mean stddev 27547 1895 12165 6.77461e+07 2459.29 255.02 Signed-off-by: David Howells --- include/uapi/linux/udp.h | 1 + net/rxrpc/ar-internal.h | 2 +- net/rxrpc/input.c | 50 ++++++++++------------------------------ net/rxrpc/local_object.c | 27 ++++++++++++++++++---- 4 files changed, 36 insertions(+), 44 deletions(-) diff --git a/include/uapi/linux/udp.h b/include/uapi/linux/udp.h index 09d00f8c442b..09502de447f5 100644 --- a/include/uapi/linux/udp.h +++ b/include/uapi/linux/udp.h @@ -40,5 +40,6 @@ struct udphdr { #define UDP_ENCAP_L2TPINUDP 3 /* rfc2661 */ #define UDP_ENCAP_GTP0 4 /* GSM TS 09.60 */ #define UDP_ENCAP_GTP1U 5 /* 3GPP TS 29.060 */ +#define UDP_ENCAP_RXRPC 6 #endif /* _UAPI_LINUX_UDP_H */ diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h index 63c43b3a2096..ab60c0313fd4 100644 --- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -966,7 +966,7 @@ void rxrpc_unpublish_service_conn(struct rxrpc_connection *); /* * input.c */ -void rxrpc_data_ready(struct sock *); +int rxrpc_input_packet(struct sock *, struct sk_buff *); /* * insecure.c diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index c3114fa66c92..1866aeef2284 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -1121,7 +1121,7 @@ int rxrpc_extract_header(struct rxrpc_skb_priv *sp, struct sk_buff *skb) * shut down and the local endpoint from going away, thus sk_user_data will not * be cleared until this function returns. */ -void rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) +int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) { struct rxrpc_connection *conn; struct rxrpc_channel *chan; @@ -1135,6 +1135,13 @@ void rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) _enter("%p", udp_sk); + if (skb->tstamp == 0) + skb->tstamp = ktime_get_real(); + + rxrpc_new_skb(skb, rxrpc_skb_rx_received); + + skb_pull(skb, sizeof(struct udphdr)); + /* The UDP protocol already released all skb resources; * we are free to add our own data there. */ @@ -1148,8 +1155,8 @@ void rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) static int lose; if ((lose++ & 7) == 7) { trace_rxrpc_rx_lose(sp); - rxrpc_lose_skb(skb, rxrpc_skb_rx_lost); - return; + rxrpc_free_skb(skb, rxrpc_skb_rx_lost); + return 0; } } @@ -1332,7 +1339,7 @@ discard: rxrpc_free_skb(skb, rxrpc_skb_rx_freed); out: trace_rxrpc_rx_done(0, 0); - return; + return 0; out_unlock: rcu_read_unlock(); @@ -1371,38 +1378,5 @@ reject_packet: trace_rxrpc_rx_done(skb->mark, skb->priority); rxrpc_reject_packet(local, skb); _leave(" [badmsg]"); -} - -void rxrpc_data_ready(struct sock *udp_sk) -{ - struct sk_buff *skb; - int ret; - - for (;;) { - skb = skb_recv_udp(udp_sk, 0, 1, &ret); - if (!skb) { - if (ret == -EAGAIN) - return; - - /* If there was a transmission failure, we get an error - * here that we need to ignore. - */ - _debug("UDP socket error %d", ret); - continue; - } - - rxrpc_new_skb(skb, rxrpc_skb_rx_received); - - /* we'll probably need to checksum it (didn't call sock_recvmsg) */ - if (skb_checksum_complete(skb)) { - rxrpc_free_skb(skb, rxrpc_skb_rx_freed); - __UDP_INC_STATS(sock_net(udp_sk), UDP_MIB_INERRORS, 0); - _debug("csum failed"); - continue; - } - - __UDP_INC_STATS(sock_net(udp_sk), UDP_MIB_INDATAGRAMS, 0); - - rxrpc_input_packet(udp_sk, skb); - } + return 0; } diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c index 30862f44c9f1..cad0691c2bb4 100644 --- a/net/rxrpc/local_object.c +++ b/net/rxrpc/local_object.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include "ar-internal.h" @@ -108,7 +109,7 @@ static struct rxrpc_local *rxrpc_alloc_local(struct rxrpc_net *rxnet, */ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) { - struct sock *sock; + struct sock *usk; int ret, opt; _enter("%p{%d,%d}", @@ -123,10 +124,26 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) } /* set the socket up */ - sock = local->socket->sk; - sock->sk_user_data = local; - sock->sk_data_ready = rxrpc_data_ready; - sock->sk_error_report = rxrpc_error_report; + usk = local->socket->sk; + inet_sk(usk)->mc_loop = 0; + + /* Enable CHECKSUM_UNNECESSARY to CHECKSUM_COMPLETE conversion */ + inet_inc_convert_csum(usk); + + rcu_assign_sk_user_data(usk, local); + + udp_sk(usk)->encap_type = UDP_ENCAP_RXRPC; + udp_sk(usk)->encap_rcv = rxrpc_input_packet; + udp_sk(usk)->encap_destroy = NULL; + udp_sk(usk)->gro_receive = NULL; + udp_sk(usk)->gro_complete = NULL; + + udp_encap_enable(); +#if IS_ENABLED(CONFIG_IPV6) + if (local->srx.transport.family == AF_INET6) + udpv6_encap_enable(); +#endif + usk->sk_error_report = rxrpc_error_report; /* if a local address was supplied then bind it */ if (local->srx.transport_len > sizeof(sa_family_t)) { From bfd2821117a751763718f1b5e57216c0d9b19a49 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Oct 2018 15:45:56 +0100 Subject: [PATCH 1651/1762] rxrpc: Don't need to take the RCU read lock in the packet receiver We don't need to take the RCU read lock in the rxrpc packet receive function because it's held further up the stack in the IP input routine around the UDP receive routines. Fix this by dropping the RCU read lock calls from rxrpc_input_packet(). This simplifies the code. Fixes: 70790dbe3f66 ("rxrpc: Pass the last Tx packet marker in the annotation buffer") Signed-off-by: David Howells --- net/rxrpc/input.c | 41 +++++++++++++---------------------------- 1 file changed, 13 insertions(+), 28 deletions(-) diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index 1866aeef2284..2dcef482acf2 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -1120,6 +1120,8 @@ int rxrpc_extract_header(struct rxrpc_skb_priv *sp, struct sk_buff *skb) * The socket is locked by the caller and this prevents the socket from being * shut down and the local endpoint from going away, thus sk_user_data will not * be cleared until this function returns. + * + * Called with the RCU read lock held from the IP layer via UDP. */ int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) { @@ -1215,8 +1217,6 @@ int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) if (sp->hdr.serviceId == 0) goto bad_message; - rcu_read_lock(); - if (rxrpc_to_server(sp)) { /* Weed out packets to services we're not offering. Packets * that would begin a call are explicitly rejected and the rest @@ -1228,7 +1228,7 @@ int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) if (sp->hdr.type == RXRPC_PACKET_TYPE_DATA && sp->hdr.seq == 1) goto unsupported_service; - goto discard_unlock; + goto discard; } } @@ -1248,7 +1248,7 @@ int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) /* Connection-level packet */ _debug("CONN %p {%d}", conn, conn->debug_id); rxrpc_post_packet_to_conn(conn, skb); - goto out_unlock; + goto out; } /* Note the serial number skew here */ @@ -1267,19 +1267,19 @@ int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) /* Ignore really old calls */ if (sp->hdr.callNumber < chan->last_call) - goto discard_unlock; + goto discard; if (sp->hdr.callNumber == chan->last_call) { if (chan->call || sp->hdr.type == RXRPC_PACKET_TYPE_ABORT) - goto discard_unlock; + goto discard; /* For the previous service call, if completed * successfully, we discard all further packets. */ if (rxrpc_conn_is_service(conn) && chan->last_type == RXRPC_PACKET_TYPE_ACK) - goto discard_unlock; + goto discard; /* But otherwise we need to retransmit the final packet * from data cached in the connection record. @@ -1290,16 +1290,14 @@ int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) sp->hdr.serial, sp->hdr.flags, 0); rxrpc_post_packet_to_conn(conn, skb); - goto out_unlock; + goto out; } call = rcu_dereference(chan->call); if (sp->hdr.callNumber > chan->call_id) { - if (rxrpc_to_client(sp)) { - rcu_read_unlock(); + if (rxrpc_to_client(sp)) goto reject_packet; - } if (call) rxrpc_input_implicit_end_call(conn, call); call = NULL; @@ -1318,55 +1316,42 @@ int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) if (!call || atomic_read(&call->usage) == 0) { if (rxrpc_to_client(sp) || sp->hdr.type != RXRPC_PACKET_TYPE_DATA) - goto bad_message_unlock; + goto bad_message; if (sp->hdr.seq != 1) - goto discard_unlock; + goto discard; call = rxrpc_new_incoming_call(local, rx, peer, conn, skb); - if (!call) { - rcu_read_unlock(); + if (!call) goto reject_packet; - } rxrpc_send_ping(call, skb, skew); mutex_unlock(&call->user_mutex); } rxrpc_input_call_packet(call, skb, skew); - goto discard_unlock; + goto discard; -discard_unlock: - rcu_read_unlock(); discard: rxrpc_free_skb(skb, rxrpc_skb_rx_freed); out: trace_rxrpc_rx_done(0, 0); return 0; -out_unlock: - rcu_read_unlock(); - goto out; - wrong_security: - rcu_read_unlock(); trace_rxrpc_abort(0, "SEC", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq, RXKADINCONSISTENCY, EBADMSG); skb->priority = RXKADINCONSISTENCY; goto post_abort; unsupported_service: - rcu_read_unlock(); trace_rxrpc_abort(0, "INV", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq, RX_INVALID_OPERATION, EOPNOTSUPP); skb->priority = RX_INVALID_OPERATION; goto post_abort; reupgrade: - rcu_read_unlock(); trace_rxrpc_abort(0, "UPG", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq, RX_PROTOCOL_ERROR, EBADMSG); goto protocol_error; -bad_message_unlock: - rcu_read_unlock(); bad_message: trace_rxrpc_abort(0, "BAD", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq, RX_PROTOCOL_ERROR, EBADMSG); From c479d5f2c2e1ce609da08c075054440d97ddff52 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Oct 2018 15:46:01 +0100 Subject: [PATCH 1652/1762] rxrpc: Don't check RXRPC_CALL_TX_LAST after calling rxrpc_rotate_tx_window() We should only call the function to end a call's Tx phase if we rotated the marked-last packet out of the transmission buffer. Make rxrpc_rotate_tx_window() return an indication of whether it just rotated the packet marked as the last out of the transmit buffer, carrying the information out of the locked section in that function. We can then check the return value instead of examining RXRPC_CALL_TX_LAST. Fixes: 70790dbe3f66 ("rxrpc: Pass the last Tx packet marker in the annotation buffer") Signed-off-by: David Howells --- net/rxrpc/input.c | 35 +++++++++++++++++++---------------- 1 file changed, 19 insertions(+), 16 deletions(-) diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index 2dcef482acf2..8834aa627371 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -216,10 +216,11 @@ static void rxrpc_send_ping(struct rxrpc_call *call, struct sk_buff *skb, /* * Apply a hard ACK by advancing the Tx window. */ -static void rxrpc_rotate_tx_window(struct rxrpc_call *call, rxrpc_seq_t to, +static bool rxrpc_rotate_tx_window(struct rxrpc_call *call, rxrpc_seq_t to, struct rxrpc_ack_summary *summary) { struct sk_buff *skb, *list = NULL; + bool rot_last = false; int ix; u8 annotation; @@ -243,15 +244,17 @@ static void rxrpc_rotate_tx_window(struct rxrpc_call *call, rxrpc_seq_t to, skb->next = list; list = skb; - if (annotation & RXRPC_TX_ANNO_LAST) + if (annotation & RXRPC_TX_ANNO_LAST) { set_bit(RXRPC_CALL_TX_LAST, &call->flags); + rot_last = true; + } if ((annotation & RXRPC_TX_ANNO_MASK) != RXRPC_TX_ANNO_ACK) summary->nr_rot_new_acks++; } spin_unlock(&call->lock); - trace_rxrpc_transmit(call, (test_bit(RXRPC_CALL_TX_LAST, &call->flags) ? + trace_rxrpc_transmit(call, (rot_last ? rxrpc_transmit_rotate_last : rxrpc_transmit_rotate)); wake_up(&call->waitq); @@ -262,6 +265,8 @@ static void rxrpc_rotate_tx_window(struct rxrpc_call *call, rxrpc_seq_t to, skb->next = NULL; rxrpc_free_skb(skb, rxrpc_skb_tx_freed); } + + return rot_last; } /* @@ -332,11 +337,11 @@ static bool rxrpc_receiving_reply(struct rxrpc_call *call) trace_rxrpc_timer(call, rxrpc_timer_init_for_reply, now); } - if (!test_bit(RXRPC_CALL_TX_LAST, &call->flags)) - rxrpc_rotate_tx_window(call, top, &summary); if (!test_bit(RXRPC_CALL_TX_LAST, &call->flags)) { - rxrpc_proto_abort("TXL", call, top); - return false; + if (!rxrpc_rotate_tx_window(call, top, &summary)) { + rxrpc_proto_abort("TXL", call, top); + return false; + } } if (!rxrpc_end_tx_phase(call, true, "ETD")) return false; @@ -897,8 +902,12 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb, if (nr_acks > call->tx_top - hard_ack) return rxrpc_proto_abort("AKN", call, 0); - if (after(hard_ack, call->tx_hard_ack)) - rxrpc_rotate_tx_window(call, hard_ack, &summary); + if (after(hard_ack, call->tx_hard_ack)) { + if (rxrpc_rotate_tx_window(call, hard_ack, &summary)) { + rxrpc_end_tx_phase(call, false, "ETA"); + return; + } + } if (nr_acks > 0) { if (skb_copy_bits(skb, offset, buf.acks, nr_acks) < 0) @@ -907,11 +916,6 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb, &summary); } - if (test_bit(RXRPC_CALL_TX_LAST, &call->flags)) { - rxrpc_end_tx_phase(call, false, "ETA"); - return; - } - if (call->rxtx_annotations[call->tx_top & RXRPC_RXTX_BUFF_MASK] & RXRPC_TX_ANNO_LAST && summary.nr_acks == call->tx_top - hard_ack && @@ -933,8 +937,7 @@ static void rxrpc_input_ackall(struct rxrpc_call *call, struct sk_buff *skb) _proto("Rx ACKALL %%%u", sp->hdr.serial); - rxrpc_rotate_tx_window(call, call->tx_top, &summary); - if (test_bit(RXRPC_CALL_TX_LAST, &call->flags)) + if (rxrpc_rotate_tx_window(call, call->tx_top, &summary)) rxrpc_end_tx_phase(call, false, "ETL"); } From dfe995224693798e554ab4770f6d8a096afc60cd Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Oct 2018 15:46:05 +0100 Subject: [PATCH 1653/1762] rxrpc: Carry call state out of locked section in rxrpc_rotate_tx_window() Carry the call state out of the locked section in rxrpc_rotate_tx_window() rather than sampling it afterwards. This is only used to select tracepoint data, but could have changed by the time we do the tracepoint. Signed-off-by: David Howells --- net/rxrpc/input.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index 8834aa627371..af8ce64f4162 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -278,23 +278,26 @@ static bool rxrpc_rotate_tx_window(struct rxrpc_call *call, rxrpc_seq_t to, static bool rxrpc_end_tx_phase(struct rxrpc_call *call, bool reply_begun, const char *abort_why) { + unsigned int state; ASSERT(test_bit(RXRPC_CALL_TX_LAST, &call->flags)); write_lock(&call->state_lock); - switch (call->state) { + state = call->state; + switch (state) { case RXRPC_CALL_CLIENT_SEND_REQUEST: case RXRPC_CALL_CLIENT_AWAIT_REPLY: if (reply_begun) - call->state = RXRPC_CALL_CLIENT_RECV_REPLY; + call->state = state = RXRPC_CALL_CLIENT_RECV_REPLY; else - call->state = RXRPC_CALL_CLIENT_AWAIT_REPLY; + call->state = state = RXRPC_CALL_CLIENT_AWAIT_REPLY; break; case RXRPC_CALL_SERVER_AWAIT_ACK: __rxrpc_call_completed(call); rxrpc_notify_socket(call); + state = call->state; break; default: @@ -302,11 +305,10 @@ static bool rxrpc_end_tx_phase(struct rxrpc_call *call, bool reply_begun, } write_unlock(&call->state_lock); - if (call->state == RXRPC_CALL_CLIENT_AWAIT_REPLY) { + if (state == RXRPC_CALL_CLIENT_AWAIT_REPLY) trace_rxrpc_transmit(call, rxrpc_transmit_await_reply); - } else { + else trace_rxrpc_transmit(call, rxrpc_transmit_end); - } _leave(" = ok"); return true; From d7782145e1ad537df4ce74e58c50f1f732a1462d Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 6 Oct 2018 10:56:11 -0700 Subject: [PATCH 1654/1762] filesystem-dax: Fix dax_layout_busy_page() livelock In the presence of multi-order entries the typical pagevec_lookup_entries() pattern may loop forever: while (index < end && pagevec_lookup_entries(&pvec, mapping, index, min(end - index, (pgoff_t)PAGEVEC_SIZE), indices)) { ... for (i = 0; i < pagevec_count(&pvec); i++) { index = indices[i]; ... } index++; /* BUG */ } The loop updates 'index' for each index found and then increments to the next possible page to continue the lookup. However, if the last entry in the pagevec is multi-order then the next possible page index is more than 1 page away. Fix this locally for the filesystem-dax case by checking for dax-multi-order entries. Going forward new users of multi-order entries need to be similarly careful, or we need a generic way to report the page increment in the radix iterator. Fixes: 5fac7408d828 ("mm, fs, dax: handle layout changes to pinned dax...") Cc: Cc: Ross Zwisler Cc: Matthew Wilcox Reviewed-by: Jan Kara Signed-off-by: Dan Williams --- fs/dax.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/fs/dax.c b/fs/dax.c index 4becbf168b7f..0fb270f0a0ef 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -666,6 +666,8 @@ struct page *dax_layout_busy_page(struct address_space *mapping) while (index < end && pagevec_lookup_entries(&pvec, mapping, index, min(end - index, (pgoff_t)PAGEVEC_SIZE), indices)) { + pgoff_t nr_pages = 1; + for (i = 0; i < pagevec_count(&pvec); i++) { struct page *pvec_ent = pvec.pages[i]; void *entry; @@ -680,8 +682,15 @@ struct page *dax_layout_busy_page(struct address_space *mapping) xa_lock_irq(&mapping->i_pages); entry = get_unlocked_mapping_entry(mapping, index, NULL); - if (entry) + if (entry) { page = dax_busy_page(entry); + /* + * Account for multi-order entries at + * the end of the pagevec. + */ + if (i + 1 >= pagevec_count(&pvec)) + nr_pages = 1UL << dax_radix_order(entry); + } put_unlocked_mapping_entry(mapping, index, entry); xa_unlock_irq(&mapping->i_pages); if (page) @@ -696,7 +705,7 @@ struct page *dax_layout_busy_page(struct address_space *mapping) */ pagevec_remove_exceptionals(&pvec); pagevec_release(&pvec); - index++; + index += nr_pages; if (page) break; From d6ed11edab5dd10ddf5548c02a9a1132ec728640 Mon Sep 17 00:00:00 2001 From: Marco Felsch Date: Fri, 5 Oct 2018 09:58:10 +0200 Subject: [PATCH 1655/1762] ASoC: dt-bindings: max98088: add external clock binding Allow setting the clock provider for the external clock called "mclk". Signed-off-by: Marco Felsch Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/maxim,max98088.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/maxim,max98088.txt b/Documentation/devicetree/bindings/sound/maxim,max98088.txt index a79ad5c7af88..da764d913319 100644 --- a/Documentation/devicetree/bindings/sound/maxim,max98088.txt +++ b/Documentation/devicetree/bindings/sound/maxim,max98088.txt @@ -7,9 +7,17 @@ Required properties: - compatible: "maxim,max98088" or "maxim,max98089". - reg: The I2C address of the device. +Optional properties: + +- clocks: the clock provider of MCLK, see ../clock/clock-bindings.txt section + "consumer" for more information. +- clock-names: must be set to "mclk" + Example: max98089: codec@10 { compatible = "maxim,max98089"; reg = <0x10>; + clocks = <&clks IMX6QDL_CLK_CKO2>; + clock-names = "mclk"; }; From 62a7fc32a6289dce88787da03f893deab08158c3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andreas=20F=C3=A4rber?= Date: Fri, 5 Oct 2018 09:58:11 +0200 Subject: [PATCH 1656/1762] ASoC: max98088: Add master clock handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If master clock is provided through device tree, then update the master clock frequency during set_sysclk. Cc: Tushar Behera Signed-off-by: Andreas Färber Acked-by: Tushar Behera Reviewed-by: Javier Martinez Canillas [m.felsch@pengutronix.de: move mclk request to i2c_probe] [m.felsch@pengutronix.de: make use of snd_soc_component_get_bias_level()] Signed-off-by: Marco Felsch Signed-off-by: Mark Brown --- sound/soc/codecs/max98088.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/sound/soc/codecs/max98088.c b/sound/soc/codecs/max98088.c index 9450d5d9c492..ca172a4b6849 100644 --- a/sound/soc/codecs/max98088.c +++ b/sound/soc/codecs/max98088.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -42,6 +43,7 @@ struct max98088_priv { struct regmap *regmap; enum max98088_type devtype; struct max98088_pdata *pdata; + struct clk *mclk; unsigned int sysclk; struct max98088_cdata dai[2]; int eq_textcnt; @@ -1103,6 +1105,11 @@ static int max98088_dai_set_sysclk(struct snd_soc_dai *dai, if (freq == max98088->sysclk) return 0; + if (!IS_ERR(max98088->mclk)) { + freq = clk_round_rate(max98088->mclk, freq); + clk_set_rate(max98088->mclk, freq); + } + /* Setup clocks for slave mode, and using the PLL * PSCLK = 0x01 (when master clk is 10MHz to 20MHz) * 0x02 (when master clk is 20MHz to 30MHz).. @@ -1310,6 +1317,20 @@ static int max98088_set_bias_level(struct snd_soc_component *component, break; case SND_SOC_BIAS_PREPARE: + /* + * SND_SOC_BIAS_PREPARE is called while preparing for a + * transition to ON or away from ON. If current bias_level + * is SND_SOC_BIAS_ON, then it is preparing for a transition + * away from ON. Disable the clock in that case, otherwise + * enable it. + */ + if (!IS_ERR(max98088->mclk)) { + if (snd_soc_component_get_bias_level(component) == + SND_SOC_BIAS_ON) + clk_disable_unprepare(max98088->mclk); + else + clk_prepare_enable(max98088->mclk); + } break; case SND_SOC_BIAS_STANDBY: @@ -1725,6 +1746,11 @@ static int max98088_i2c_probe(struct i2c_client *i2c, if (IS_ERR(max98088->regmap)) return PTR_ERR(max98088->regmap); + max98088->mclk = devm_clk_get(&i2c->dev, "mclk"); + if (IS_ERR(max98088->mclk)) + if (PTR_ERR(max98088->mclk) == -EPROBE_DEFER) + return PTR_ERR(max98088->mclk); + max98088->devtype = id->driver_data; i2c_set_clientdata(i2c, max98088); From 24ae67c5825004bcbce90e7c89fed63f25d96260 Mon Sep 17 00:00:00 2001 From: Marco Felsch Date: Fri, 5 Oct 2018 09:58:12 +0200 Subject: [PATCH 1657/1762] ASoC: max98988: make it selectable Currently the driver will build only if SND_SOC_ALL_CODECS is set. Adding a Kconfig menu description to build the driver standalone. Signed-off-by: Marco Felsch Signed-off-by: Mark Brown --- sound/soc/codecs/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 9989d35e0fc6..3c6bd6019b92 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -640,7 +640,7 @@ config SND_SOC_LM49453 tristate config SND_SOC_MAX98088 - tristate + tristate "Maxim MAX98088/9 Low-Power, Stereo Audio Codec" config SND_SOC_MAX98090 tristate From 298bc15b2079c324e82d0a6fda39c3d762af7282 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Oct 2018 15:46:11 +0100 Subject: [PATCH 1658/1762] rxrpc: Only take the rwind and mtu values from latest ACK Move the out-of-order and duplicate ACK packet check to before the call to rxrpc_input_ackinfo() so that the receive window size and MTU size are only checked in the latest ACK packet and don't regress. Fixes: 248f219cb8bc ("rxrpc: Rewrite the data and ack handling code") Signed-off-by: David Howells --- net/rxrpc/input.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index af8ce64f4162..04213a65c1ac 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -868,6 +868,16 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb, rxrpc_propose_ack_respond_to_ack); } + /* Discard any out-of-order or duplicate ACKs. */ + if (before_eq(sp->hdr.serial, call->acks_latest)) { + _debug("discard ACK %d <= %d", + sp->hdr.serial, call->acks_latest); + return; + } + call->acks_latest_ts = skb->tstamp; + call->acks_latest = sp->hdr.serial; + + /* Parse rwind and mtu sizes if provided. */ ioffset = offset + nr_acks + 3; if (skb->len >= ioffset + sizeof(buf.info)) { if (skb_copy_bits(skb, ioffset, &buf.info, sizeof(buf.info)) < 0) @@ -889,15 +899,6 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb, return; } - /* Discard any out-of-order or duplicate ACKs. */ - if (before_eq(sp->hdr.serial, call->acks_latest)) { - _debug("discard ACK %d <= %d", - sp->hdr.serial, call->acks_latest); - return; - } - call->acks_latest_ts = skb->tstamp; - call->acks_latest = sp->hdr.serial; - if (before(hard_ack, call->tx_hard_ack) || after(hard_ack, call->tx_top)) return rxrpc_proto_abort("AKW", call, 0); From 647530924f47c93db472ee3cf43b7ef1425581b6 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Oct 2018 15:46:17 +0100 Subject: [PATCH 1659/1762] rxrpc: Fix connection-level abort handling Fix connection-level abort handling to cache the abort and error codes properly so that a new incoming call can be properly aborted if it races with the parent connection being aborted by another CPU. The abort_code and error parameters can then be dropped from rxrpc_abort_calls(). Fixes: f5c17aaeb2ae ("rxrpc: Calls should only have one terminal state") Signed-off-by: David Howells --- net/rxrpc/ar-internal.h | 4 ++-- net/rxrpc/call_accept.c | 4 ++-- net/rxrpc/conn_event.c | 26 +++++++++++++++----------- 3 files changed, 19 insertions(+), 15 deletions(-) diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h index ab60c0313fd4..45307463b7dd 100644 --- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -442,8 +442,7 @@ struct rxrpc_connection { spinlock_t state_lock; /* state-change lock */ enum rxrpc_conn_cache_state cache_state; enum rxrpc_conn_proto_state state; /* current state of connection */ - u32 local_abort; /* local abort code */ - u32 remote_abort; /* remote abort code */ + u32 abort_code; /* Abort code of connection abort */ int debug_id; /* debug ID for printks */ atomic_t serial; /* packet serial number counter */ unsigned int hi_serial; /* highest serial number received */ @@ -453,6 +452,7 @@ struct rxrpc_connection { u8 security_size; /* security header size */ u8 security_ix; /* security type */ u8 out_clientflag; /* RXRPC_CLIENT_INITIATED if we are client */ + short error; /* Local error code */ }; static inline bool rxrpc_to_server(const struct rxrpc_skb_priv *sp) diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c index f55f67894465..1c4ebc0cb25b 100644 --- a/net/rxrpc/call_accept.c +++ b/net/rxrpc/call_accept.c @@ -405,11 +405,11 @@ struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *local, case RXRPC_CONN_REMOTELY_ABORTED: rxrpc_set_call_completion(call, RXRPC_CALL_REMOTELY_ABORTED, - conn->remote_abort, -ECONNABORTED); + conn->abort_code, conn->error); break; case RXRPC_CONN_LOCALLY_ABORTED: rxrpc_abort_call("CON", call, sp->hdr.seq, - conn->local_abort, -ECONNABORTED); + conn->abort_code, conn->error); break; default: BUG(); diff --git a/net/rxrpc/conn_event.c b/net/rxrpc/conn_event.c index 6df56ce68861..b6fca8ebb117 100644 --- a/net/rxrpc/conn_event.c +++ b/net/rxrpc/conn_event.c @@ -126,7 +126,7 @@ static void rxrpc_conn_retransmit_call(struct rxrpc_connection *conn, switch (chan->last_type) { case RXRPC_PACKET_TYPE_ABORT: - _proto("Tx ABORT %%%u { %d } [re]", serial, conn->local_abort); + _proto("Tx ABORT %%%u { %d } [re]", serial, conn->abort_code); break; case RXRPC_PACKET_TYPE_ACK: trace_rxrpc_tx_ack(chan->call_debug_id, serial, @@ -153,13 +153,12 @@ static void rxrpc_conn_retransmit_call(struct rxrpc_connection *conn, * pass a connection-level abort onto all calls on that connection */ static void rxrpc_abort_calls(struct rxrpc_connection *conn, - enum rxrpc_call_completion compl, - u32 abort_code, int error) + enum rxrpc_call_completion compl) { struct rxrpc_call *call; int i; - _enter("{%d},%x", conn->debug_id, abort_code); + _enter("{%d},%x", conn->debug_id, conn->abort_code); spin_lock(&conn->channel_lock); @@ -172,9 +171,11 @@ static void rxrpc_abort_calls(struct rxrpc_connection *conn, trace_rxrpc_abort(call->debug_id, "CON", call->cid, call->call_id, 0, - abort_code, error); + conn->abort_code, + conn->error); if (rxrpc_set_call_completion(call, compl, - abort_code, error)) + conn->abort_code, + conn->error)) rxrpc_notify_socket(call); } } @@ -207,10 +208,12 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn, return 0; } + conn->error = error; + conn->abort_code = abort_code; conn->state = RXRPC_CONN_LOCALLY_ABORTED; spin_unlock_bh(&conn->state_lock); - rxrpc_abort_calls(conn, RXRPC_CALL_LOCALLY_ABORTED, abort_code, error); + rxrpc_abort_calls(conn, RXRPC_CALL_LOCALLY_ABORTED); msg.msg_name = &conn->params.peer->srx.transport; msg.msg_namelen = conn->params.peer->srx.transport_len; @@ -229,7 +232,7 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn, whdr._rsvd = 0; whdr.serviceId = htons(conn->service_id); - word = htonl(conn->local_abort); + word = htonl(conn->abort_code); iov[0].iov_base = &whdr; iov[0].iov_len = sizeof(whdr); @@ -240,7 +243,7 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn, serial = atomic_inc_return(&conn->serial); whdr.serial = htonl(serial); - _proto("Tx CONN ABORT %%%u { %d }", serial, conn->local_abort); + _proto("Tx CONN ABORT %%%u { %d }", serial, conn->abort_code); ret = kernel_sendmsg(conn->params.local->socket, &msg, iov, 2, len); if (ret < 0) { @@ -315,9 +318,10 @@ static int rxrpc_process_event(struct rxrpc_connection *conn, abort_code = ntohl(wtmp); _proto("Rx ABORT %%%u { ac=%d }", sp->hdr.serial, abort_code); + conn->error = -ECONNABORTED; + conn->abort_code = abort_code; conn->state = RXRPC_CONN_REMOTELY_ABORTED; - rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED, - abort_code, -ECONNABORTED); + rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED); return -ECONNABORTED; case RXRPC_PACKET_TYPE_CHALLENGE: From 4e2abd3c051830a0d4189340fe79f2549bdf36de Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Oct 2018 19:44:39 +0100 Subject: [PATCH 1660/1762] rxrpc: Fix the rxrpc_tx_packet trace line Fix the rxrpc_tx_packet trace line by storing the where parameter. Fixes: 4764c0da69dc ("rxrpc: Trace packet transmission") Signed-off-by: David Howells --- include/trace/events/rxrpc.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h index 837393fa897b..573d5b901fb1 100644 --- a/include/trace/events/rxrpc.h +++ b/include/trace/events/rxrpc.h @@ -931,6 +931,7 @@ TRACE_EVENT(rxrpc_tx_packet, TP_fast_assign( __entry->call = call_id; memcpy(&__entry->whdr, whdr, sizeof(__entry->whdr)); + __entry->where = where; ), TP_printk("c=%08x %08x:%08x:%08x:%04x %08x %08x %02x %02x %s %s", From c1e15b4944c9fa7fbbb74f7a5920a1e31b4b965a Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Oct 2018 15:46:25 +0100 Subject: [PATCH 1661/1762] rxrpc: Fix the packet reception routine The rxrpc_input_packet() function and its call tree was built around the assumption that data_ready() handler called from UDP to inform a kernel service that there is data to be had was non-reentrant. This means that certain locking could be dispensed with. This, however, turns out not to be the case with a multi-queue network card that can deliver packets to multiple cpus simultaneously. Each of those cpus can be in the rxrpc_input_packet() function at the same time. Fix by adding or changing some structure members: (1) Add peer->rtt_input_lock to serialise access to the RTT buffer. (2) Make conn->service_id into a 32-bit variable so that it can be cmpxchg'd on all arches. (3) Add call->input_lock to serialise access to the Rx/Tx state. Note that although the Rx and Tx states are (almost) entirely separate, there's no point completing the separation and having separate locks since it's a bi-phasal RPC protocol rather than a bi-direction streaming protocol. Data transmission and data reception do not take place simultaneously on any particular call. and making the following functional changes: (1) In rxrpc_input_data(), hold call->input_lock around the core to prevent simultaneous producing of packets into the Rx ring and updating of tracking state for a particular call. (2) In rxrpc_input_ping_response(), only read call->ping_serial once, and check it before checking RXRPC_CALL_PINGING as that's a cheaper test. The bit test and bit clear can then be combined. No further locking is needed here. (3) In rxrpc_input_ack(), take call->input_lock after we've parsed much of the ACK packet. The superseded ACK check is then done both before and after the lock is taken. The handing of ackinfo data is split, parsing before the lock is taken and processing with it held. This is keyed on rxMTU being non-zero. Congestion management is also done within the locked section. (4) In rxrpc_input_ackall(), take call->input_lock around the Tx window rotation. The ACKALL packet carries no information and is only really useful after all packets have been transmitted since it's imprecise. (5) In rxrpc_input_implicit_end_call(), we use rx->incoming_lock to prevent calls being simultaneously implicitly ended on two cpus and also to prevent any races with incoming call setup. (6) In rxrpc_input_packet(), use cmpxchg() to effect the service upgrade on a connection. It is only permitted to happen once for a connection. (7) In rxrpc_new_incoming_call(), we have to recheck the routing inside rx->incoming_lock to see if someone else set up the call, connection or peer whilst we were getting there. We can't trust the values from the earlier routing check unless we pin refs on them - which we want to avoid. Further, we need to allow for an incoming call to have its state changed on another CPU between us making it live and us adjusting it because the conn is now in the RXRPC_CONN_SERVICE state. (8) In rxrpc_peer_add_rtt(), take peer->rtt_input_lock around the access to the RTT buffer. Don't need to lock around setting peer->rtt. For reference, the inventory of state-accessing or state-altering functions used by the packet input procedure is: > rxrpc_input_packet() * PACKET CHECKING * ROUTING > rxrpc_post_packet_to_local() > rxrpc_find_connection_rcu() - uses RCU > rxrpc_lookup_peer_rcu() - uses RCU > rxrpc_find_service_conn_rcu() - uses RCU > idr_find() - uses RCU * CONNECTION-LEVEL PROCESSING - Service upgrade - Can only happen once per conn ! Changed to use cmpxchg > rxrpc_post_packet_to_conn() - Setting conn->hi_serial - Probably safe not using locks - Maybe use cmpxchg * CALL-LEVEL PROCESSING > Old-call checking > rxrpc_input_implicit_end_call() > rxrpc_call_completed() > rxrpc_queue_call() ! Need to take rx->incoming_lock > __rxrpc_disconnect_call() > rxrpc_notify_socket() > rxrpc_new_incoming_call() - Uses rx->incoming_lock for the entire process - Might be able to drop this earlier in favour of the call lock > rxrpc_incoming_call() ! Conflicts with rxrpc_input_implicit_end_call() > rxrpc_send_ping() - Don't need locks to check rtt state > rxrpc_propose_ACK * PACKET DISTRIBUTION > rxrpc_input_call_packet() > rxrpc_input_data() * QUEUE DATA PACKET ON CALL > rxrpc_reduce_call_timer() - Uses timer_reduce() ! Needs call->input_lock() > rxrpc_receiving_reply() ! Needs locking around ack state > rxrpc_rotate_tx_window() > rxrpc_end_tx_phase() > rxrpc_proto_abort() > rxrpc_input_dup_data() - Fills the Rx buffer - rxrpc_propose_ACK() - rxrpc_notify_socket() > rxrpc_input_ack() * APPLY ACK PACKET TO CALL AND DISCARD PACKET > rxrpc_input_ping_response() - Probably doesn't need any extra locking ! Need READ_ONCE() on call->ping_serial > rxrpc_input_check_for_lost_ack() - Takes call->lock to consult Tx buffer > rxrpc_peer_add_rtt() ! Needs to take a lock (peer->rtt_input_lock) ! Could perhaps manage with cmpxchg() and xadd() instead > rxrpc_input_requested_ack - Consults Tx buffer ! Probably needs a lock > rxrpc_peer_add_rtt() > rxrpc_propose_ack() > rxrpc_input_ackinfo() - Changes call->tx_winsize ! Use cmpxchg to handle change ! Should perhaps track serial number - Uses peer->lock to record MTU specification changes > rxrpc_proto_abort() ! Need to take call->input_lock > rxrpc_rotate_tx_window() > rxrpc_end_tx_phase() > rxrpc_input_soft_acks() - Consults the Tx buffer > rxrpc_congestion_management() - Modifies the Tx annotations ! Needs call->input_lock() > rxrpc_queue_call() > rxrpc_input_abort() * APPLY ABORT PACKET TO CALL AND DISCARD PACKET > rxrpc_set_call_completion() > rxrpc_notify_socket() > rxrpc_input_ackall() * APPLY ACKALL PACKET TO CALL AND DISCARD PACKET ! Need to take call->input_lock > rxrpc_rotate_tx_window() > rxrpc_end_tx_phase() > rxrpc_reject_packet() There are some functions used by the above that queue the packet, after which the procedure is terminated: - rxrpc_post_packet_to_local() - local->event_queue is an sk_buff_head - local->processor is a work_struct - rxrpc_post_packet_to_conn() - conn->rx_queue is an sk_buff_head - conn->processor is a work_struct - rxrpc_reject_packet() - local->reject_queue is an sk_buff_head - local->processor is a work_struct And some that offload processing to process context: - rxrpc_notify_socket() - Uses RCU lock - Uses call->notify_lock to call call->notify_rx - Uses call->recvmsg_lock to queue recvmsg side - rxrpc_queue_call() - call->processor is a work_struct - rxrpc_propose_ACK() - Uses call->lock to wrap __rxrpc_propose_ACK() And a bunch that complete a call, all of which use call->state_lock to protect the call state: - rxrpc_call_completed() - rxrpc_set_call_completion() - rxrpc_abort_call() - rxrpc_proto_abort() - Also uses rxrpc_queue_call() Fixes: 17926a79320a ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both") Signed-off-by: David Howells --- net/rxrpc/ar-internal.h | 7 ++- net/rxrpc/call_accept.c | 21 +++++-- net/rxrpc/call_object.c | 1 + net/rxrpc/input.c | 120 ++++++++++++++++++++++++++-------------- net/rxrpc/peer_event.c | 5 ++ net/rxrpc/peer_object.c | 1 + 6 files changed, 105 insertions(+), 50 deletions(-) diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h index 45307463b7dd..a6e6cae82c30 100644 --- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -302,6 +302,7 @@ struct rxrpc_peer { /* calculated RTT cache */ #define RXRPC_RTT_CACHE_SIZE 32 + spinlock_t rtt_input_lock; /* RTT lock for input routine */ ktime_t rtt_last_req; /* Time of last RTT request */ u64 rtt; /* Current RTT estimate (in nS) */ u64 rtt_sum; /* Sum of cache contents */ @@ -447,7 +448,7 @@ struct rxrpc_connection { atomic_t serial; /* packet serial number counter */ unsigned int hi_serial; /* highest serial number received */ u32 security_nonce; /* response re-use preventer */ - u16 service_id; /* Service ID, possibly upgraded */ + u32 service_id; /* Service ID, possibly upgraded */ u8 size_align; /* data size alignment (for security) */ u8 security_size; /* security header size */ u8 security_ix; /* security type */ @@ -635,6 +636,8 @@ struct rxrpc_call { bool tx_phase; /* T if transmission phase, F if receive phase */ u8 nr_jumbo_bad; /* Number of jumbo dups/exceeds-windows */ + spinlock_t input_lock; /* Lock for packet input to this call */ + /* receive-phase ACK management */ u8 ackr_reason; /* reason to ACK */ u16 ackr_skew; /* skew on packet being ACK'd */ @@ -720,8 +723,6 @@ int rxrpc_service_prealloc(struct rxrpc_sock *, gfp_t); void rxrpc_discard_prealloc(struct rxrpc_sock *); struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *, struct rxrpc_sock *, - struct rxrpc_peer *, - struct rxrpc_connection *, struct sk_buff *); void rxrpc_accept_incoming_calls(struct rxrpc_local *); struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *, unsigned long, diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c index 1c4ebc0cb25b..652e314de38e 100644 --- a/net/rxrpc/call_accept.c +++ b/net/rxrpc/call_accept.c @@ -333,11 +333,11 @@ static struct rxrpc_call *rxrpc_alloc_incoming_call(struct rxrpc_sock *rx, */ struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *local, struct rxrpc_sock *rx, - struct rxrpc_peer *peer, - struct rxrpc_connection *conn, struct sk_buff *skb) { struct rxrpc_skb_priv *sp = rxrpc_skb(skb); + struct rxrpc_connection *conn; + struct rxrpc_peer *peer; struct rxrpc_call *call; _enter(""); @@ -354,6 +354,13 @@ struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *local, goto out; } + /* The peer, connection and call may all have sprung into existence due + * to a duplicate packet being handled on another CPU in parallel, so + * we have to recheck the routing. However, we're now holding + * rx->incoming_lock, so the values should remain stable. + */ + conn = rxrpc_find_connection_rcu(local, skb, &peer); + call = rxrpc_alloc_incoming_call(rx, local, peer, conn, skb); if (!call) { skb->mark = RXRPC_SKB_MARK_REJECT_BUSY; @@ -396,10 +403,12 @@ struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *local, case RXRPC_CONN_SERVICE: write_lock(&call->state_lock); - if (rx->discard_new_call) - call->state = RXRPC_CALL_SERVER_RECV_REQUEST; - else - call->state = RXRPC_CALL_SERVER_ACCEPTING; + if (call->state < RXRPC_CALL_COMPLETE) { + if (rx->discard_new_call) + call->state = RXRPC_CALL_SERVER_RECV_REQUEST; + else + call->state = RXRPC_CALL_SERVER_ACCEPTING; + } write_unlock(&call->state_lock); break; diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c index 0ca2c2dfd196..8f1a8f85b1f9 100644 --- a/net/rxrpc/call_object.c +++ b/net/rxrpc/call_object.c @@ -138,6 +138,7 @@ struct rxrpc_call *rxrpc_alloc_call(struct rxrpc_sock *rx, gfp_t gfp, init_waitqueue_head(&call->waitq); spin_lock_init(&call->lock); spin_lock_init(&call->notify_lock); + spin_lock_init(&call->input_lock); rwlock_init(&call->state_lock); atomic_set(&call->usage, 1); call->debug_id = debug_id; diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index 04213a65c1ac..570b49d2da42 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -459,13 +459,15 @@ static void rxrpc_input_data(struct rxrpc_call *call, struct sk_buff *skb, } } + spin_lock(&call->input_lock); + /* Received data implicitly ACKs all of the request packets we sent * when we're acting as a client. */ if ((state == RXRPC_CALL_CLIENT_SEND_REQUEST || state == RXRPC_CALL_CLIENT_AWAIT_REPLY) && !rxrpc_receiving_reply(call)) - return; + goto unlock; call->ackr_prev_seq = seq; @@ -495,12 +497,16 @@ next_subpacket: if (flags & RXRPC_LAST_PACKET) { if (test_bit(RXRPC_CALL_RX_LAST, &call->flags) && - seq != call->rx_top) - return rxrpc_proto_abort("LSN", call, seq); + seq != call->rx_top) { + rxrpc_proto_abort("LSN", call, seq); + goto unlock; + } } else { if (test_bit(RXRPC_CALL_RX_LAST, &call->flags) && - after_eq(seq, call->rx_top)) - return rxrpc_proto_abort("LSA", call, seq); + after_eq(seq, call->rx_top)) { + rxrpc_proto_abort("LSA", call, seq); + goto unlock; + } } trace_rxrpc_rx_data(call->debug_id, seq, serial, flags, annotation); @@ -567,8 +573,10 @@ next_subpacket: skip: offset += len; if (flags & RXRPC_JUMBO_PACKET) { - if (skb_copy_bits(skb, offset, &flags, 1) < 0) - return rxrpc_proto_abort("XJF", call, seq); + if (skb_copy_bits(skb, offset, &flags, 1) < 0) { + rxrpc_proto_abort("XJF", call, seq); + goto unlock; + } offset += sizeof(struct rxrpc_jumbo_header); seq++; serial++; @@ -608,6 +616,9 @@ ack: trace_rxrpc_notify_socket(call->debug_id, serial); rxrpc_notify_socket(call); } + +unlock: + spin_unlock(&call->input_lock); _leave(" [queued]"); } @@ -694,15 +705,14 @@ static void rxrpc_input_ping_response(struct rxrpc_call *call, ping_time = call->ping_time; smp_rmb(); - ping_serial = call->ping_serial; + ping_serial = READ_ONCE(call->ping_serial); if (orig_serial == call->acks_lost_ping) rxrpc_input_check_for_lost_ack(call); - if (!test_bit(RXRPC_CALL_PINGING, &call->flags) || - before(orig_serial, ping_serial)) + if (before(orig_serial, ping_serial) || + !test_and_clear_bit(RXRPC_CALL_PINGING, &call->flags)) return; - clear_bit(RXRPC_CALL_PINGING, &call->flags); if (after(orig_serial, ping_serial)) return; @@ -869,24 +879,31 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb, } /* Discard any out-of-order or duplicate ACKs. */ - if (before_eq(sp->hdr.serial, call->acks_latest)) { - _debug("discard ACK %d <= %d", - sp->hdr.serial, call->acks_latest); + if (before_eq(sp->hdr.serial, call->acks_latest)) return; - } + + buf.info.rxMTU = 0; + ioffset = offset + nr_acks + 3; + if (skb->len >= ioffset + sizeof(buf.info) && + skb_copy_bits(skb, ioffset, &buf.info, sizeof(buf.info)) < 0) + return rxrpc_proto_abort("XAI", call, 0); + + spin_lock(&call->input_lock); + + /* Discard any out-of-order or duplicate ACKs. */ + if (before_eq(sp->hdr.serial, call->acks_latest)) + goto out; call->acks_latest_ts = skb->tstamp; call->acks_latest = sp->hdr.serial; /* Parse rwind and mtu sizes if provided. */ - ioffset = offset + nr_acks + 3; - if (skb->len >= ioffset + sizeof(buf.info)) { - if (skb_copy_bits(skb, ioffset, &buf.info, sizeof(buf.info)) < 0) - return rxrpc_proto_abort("XAI", call, 0); + if (buf.info.rxMTU) rxrpc_input_ackinfo(call, skb, &buf.info); - } - if (first_soft_ack == 0) - return rxrpc_proto_abort("AK0", call, 0); + if (first_soft_ack == 0) { + rxrpc_proto_abort("AK0", call, 0); + goto out; + } /* Ignore ACKs unless we are or have just been transmitting. */ switch (READ_ONCE(call->state)) { @@ -896,25 +913,31 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb, case RXRPC_CALL_SERVER_AWAIT_ACK: break; default: - return; + goto out; } if (before(hard_ack, call->tx_hard_ack) || - after(hard_ack, call->tx_top)) - return rxrpc_proto_abort("AKW", call, 0); - if (nr_acks > call->tx_top - hard_ack) - return rxrpc_proto_abort("AKN", call, 0); + after(hard_ack, call->tx_top)) { + rxrpc_proto_abort("AKW", call, 0); + goto out; + } + if (nr_acks > call->tx_top - hard_ack) { + rxrpc_proto_abort("AKN", call, 0); + goto out; + } if (after(hard_ack, call->tx_hard_ack)) { if (rxrpc_rotate_tx_window(call, hard_ack, &summary)) { rxrpc_end_tx_phase(call, false, "ETA"); - return; + goto out; } } if (nr_acks > 0) { - if (skb_copy_bits(skb, offset, buf.acks, nr_acks) < 0) - return rxrpc_proto_abort("XSA", call, 0); + if (skb_copy_bits(skb, offset, buf.acks, nr_acks) < 0) { + rxrpc_proto_abort("XSA", call, 0); + goto out; + } rxrpc_input_soft_acks(call, buf.acks, first_soft_ack, nr_acks, &summary); } @@ -927,7 +950,9 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb, false, true, rxrpc_propose_ack_ping_for_lost_reply); - return rxrpc_congestion_management(call, skb, &summary, acked_serial); + rxrpc_congestion_management(call, skb, &summary, acked_serial); +out: + spin_unlock(&call->input_lock); } /* @@ -940,8 +965,12 @@ static void rxrpc_input_ackall(struct rxrpc_call *call, struct sk_buff *skb) _proto("Rx ACKALL %%%u", sp->hdr.serial); + spin_lock(&call->input_lock); + if (rxrpc_rotate_tx_window(call, call->tx_top, &summary)) rxrpc_end_tx_phase(call, false, "ETL"); + + spin_unlock(&call->input_lock); } /* @@ -1024,18 +1053,19 @@ static void rxrpc_input_call_packet(struct rxrpc_call *call, } /* - * Handle a new call on a channel implicitly completing the preceding call on - * that channel. + * Handle a new service call on a channel implicitly completing the preceding + * call on that channel. This does not apply to client conns. * * TODO: If callNumber > call_id + 1, renegotiate security. */ -static void rxrpc_input_implicit_end_call(struct rxrpc_connection *conn, +static void rxrpc_input_implicit_end_call(struct rxrpc_sock *rx, + struct rxrpc_connection *conn, struct rxrpc_call *call) { switch (READ_ONCE(call->state)) { case RXRPC_CALL_SERVER_AWAIT_ACK: rxrpc_call_completed(call); - break; + /* Fall through */ case RXRPC_CALL_COMPLETE: break; default: @@ -1043,11 +1073,13 @@ static void rxrpc_input_implicit_end_call(struct rxrpc_connection *conn, set_bit(RXRPC_CALL_EV_ABORT, &call->events); rxrpc_queue_call(call); } + trace_rxrpc_improper_term(call); break; } - trace_rxrpc_improper_term(call); + spin_lock(&rx->incoming_lock); __rxrpc_disconnect_call(conn, call); + spin_unlock(&rx->incoming_lock); rxrpc_notify_socket(call); } @@ -1244,10 +1276,16 @@ int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) goto wrong_security; if (sp->hdr.serviceId != conn->service_id) { - if (!test_bit(RXRPC_CONN_PROBING_FOR_UPGRADE, &conn->flags) || - conn->service_id != conn->params.service_id) + int old_id; + + if (!test_bit(RXRPC_CONN_PROBING_FOR_UPGRADE, &conn->flags)) + goto reupgrade; + old_id = cmpxchg(&conn->service_id, conn->params.service_id, + sp->hdr.serviceId); + + if (old_id != conn->params.service_id && + old_id != sp->hdr.serviceId) goto reupgrade; - conn->service_id = sp->hdr.serviceId; } if (sp->hdr.callNumber == 0) { @@ -1305,7 +1343,7 @@ int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) if (rxrpc_to_client(sp)) goto reject_packet; if (call) - rxrpc_input_implicit_end_call(conn, call); + rxrpc_input_implicit_end_call(rx, conn, call); call = NULL; } @@ -1325,7 +1363,7 @@ int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb) goto bad_message; if (sp->hdr.seq != 1) goto discard; - call = rxrpc_new_incoming_call(local, rx, peer, conn, skb); + call = rxrpc_new_incoming_call(local, rx, skb); if (!call) goto reject_packet; rxrpc_send_ping(call, skb, skew); diff --git a/net/rxrpc/peer_event.c b/net/rxrpc/peer_event.c index f3e6fc670da2..05b51bdbdd41 100644 --- a/net/rxrpc/peer_event.c +++ b/net/rxrpc/peer_event.c @@ -301,6 +301,8 @@ void rxrpc_peer_add_rtt(struct rxrpc_call *call, enum rxrpc_rtt_rx_trace why, if (rtt < 0) return; + spin_lock(&peer->rtt_input_lock); + /* Replace the oldest datum in the RTT buffer */ sum -= peer->rtt_cache[cursor]; sum += rtt; @@ -312,6 +314,8 @@ void rxrpc_peer_add_rtt(struct rxrpc_call *call, enum rxrpc_rtt_rx_trace why, peer->rtt_usage = usage; } + spin_unlock(&peer->rtt_input_lock); + /* Now recalculate the average */ if (usage == RXRPC_RTT_CACHE_SIZE) { avg = sum / RXRPC_RTT_CACHE_SIZE; @@ -320,6 +324,7 @@ void rxrpc_peer_add_rtt(struct rxrpc_call *call, enum rxrpc_rtt_rx_trace why, do_div(avg, usage); } + /* Don't need to update this under lock */ peer->rtt = avg; trace_rxrpc_rtt_rx(call, why, send_serial, resp_serial, rtt, usage, avg); diff --git a/net/rxrpc/peer_object.c b/net/rxrpc/peer_object.c index 2d39eaf19620..5691b7d266ca 100644 --- a/net/rxrpc/peer_object.c +++ b/net/rxrpc/peer_object.c @@ -225,6 +225,7 @@ struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *local, gfp_t gfp) peer->service_conns = RB_ROOT; seqlock_init(&peer->service_conn_lock); spin_lock_init(&peer->lock); + spin_lock_init(&peer->rtt_input_lock); peer->debug_id = atomic_inc_return(&rxrpc_debug_id); if (RXRPC_TX_SMSS > 2190) From 49e00eee00612b1357596fed8a88b621a7648c14 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Thu, 4 Oct 2018 14:05:23 -0700 Subject: [PATCH 1662/1762] x86/intel_rdt: Fix out-of-bounds memory access in CBM tests While the DOC at the beginning of lib/bitmap.c explicitly states that "The number of valid bits in a given bitmap does _not_ need to be an exact multiple of BITS_PER_LONG.", some of the bitmap operations do indeed access BITS_PER_LONG portions of the provided bitmap no matter the size of the provided bitmap. For example, if bitmap_intersects() is provided with an 8 bit bitmap the operation will access BITS_PER_LONG bits from the provided bitmap. While the operation ensures that these extra bits do not affect the result, the memory is still accessed. The capacity bitmasks (CBMs) are typically stored in u32 since they can never exceed 32 bits. A few instances exist where a bitmap_* operation is performed on a CBM by simply pointing the bitmap operation to the stored u32 value. The consequence of this pattern is that some bitmap_* operations will access out-of-bounds memory when interacting with the provided CBM. This is confirmed with a KASAN test that reports: BUG: KASAN: stack-out-of-bounds in __bitmap_intersects+0xa2/0x100 and BUG: KASAN: stack-out-of-bounds in __bitmap_weight+0x58/0x90 Fix this by moving any CBM provided to a bitmap operation needing BITS_PER_LONG to an 'unsigned long' variable. [ tglx: Changed related function arguments to unsigned long and got rid of the _cbm extra step ] Fixes: 72d505056604 ("x86/intel_rdt: Add utilities to test pseudo-locked region possibility") Fixes: 49f7b4efa110 ("x86/intel_rdt: Enable setting of exclusive mode") Fixes: d9b48c86eb38 ("x86/intel_rdt: Display resource groups' allocations' size in bytes") Fixes: 95f0b77efa57 ("x86/intel_rdt: Initialize new resource group with sane defaults") Signed-off-by: Reinette Chatre Signed-off-by: Thomas Gleixner Cc: fenghua.yu@intel.com Cc: tony.luck@intel.com Cc: gavin.hindman@intel.com Cc: jithu.joseph@intel.com Cc: dave.hansen@intel.com Cc: hpa@zytor.com Link: https://lkml.kernel.org/r/69a428613a53f10e80594679ac726246020ff94f.1538686926.git.reinette.chatre@intel.com Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/intel_rdt.h | 6 ++-- arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c | 20 ++++++------ arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 36 +++++++++++++-------- 3 files changed, 37 insertions(+), 25 deletions(-) diff --git a/arch/x86/kernel/cpu/intel_rdt.h b/arch/x86/kernel/cpu/intel_rdt.h index 285eb3ec4200..3736f6dc9545 100644 --- a/arch/x86/kernel/cpu/intel_rdt.h +++ b/arch/x86/kernel/cpu/intel_rdt.h @@ -529,14 +529,14 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of, int rdtgroup_schemata_show(struct kernfs_open_file *of, struct seq_file *s, void *v); bool rdtgroup_cbm_overlaps(struct rdt_resource *r, struct rdt_domain *d, - u32 _cbm, int closid, bool exclusive); + unsigned long cbm, int closid, bool exclusive); unsigned int rdtgroup_cbm_to_size(struct rdt_resource *r, struct rdt_domain *d, - u32 cbm); + unsigned long cbm); enum rdtgrp_mode rdtgroup_mode_by_closid(int closid); int rdtgroup_tasks_assigned(struct rdtgroup *r); int rdtgroup_locksetup_enter(struct rdtgroup *rdtgrp); int rdtgroup_locksetup_exit(struct rdtgroup *rdtgrp); -bool rdtgroup_cbm_overlaps_pseudo_locked(struct rdt_domain *d, u32 _cbm); +bool rdtgroup_cbm_overlaps_pseudo_locked(struct rdt_domain *d, unsigned long cbm); bool rdtgroup_pseudo_locked_in_hierarchy(struct rdt_domain *d); int rdt_pseudo_lock_init(void); void rdt_pseudo_lock_release(void); diff --git a/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c b/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c index 40f3903ae5d9..f8c260d522ca 100644 --- a/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c +++ b/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c @@ -797,25 +797,27 @@ int rdtgroup_locksetup_exit(struct rdtgroup *rdtgrp) /** * rdtgroup_cbm_overlaps_pseudo_locked - Test if CBM or portion is pseudo-locked * @d: RDT domain - * @_cbm: CBM to test + * @cbm: CBM to test * - * @d represents a cache instance and @_cbm a capacity bitmask that is - * considered for it. Determine if @_cbm overlaps with any existing + * @d represents a cache instance and @cbm a capacity bitmask that is + * considered for it. Determine if @cbm overlaps with any existing * pseudo-locked region on @d. * - * Return: true if @_cbm overlaps with pseudo-locked region on @d, false + * @cbm is unsigned long, even if only 32 bits are used, to make the + * bitmap functions work correctly. + * + * Return: true if @cbm overlaps with pseudo-locked region on @d, false * otherwise. */ -bool rdtgroup_cbm_overlaps_pseudo_locked(struct rdt_domain *d, u32 _cbm) +bool rdtgroup_cbm_overlaps_pseudo_locked(struct rdt_domain *d, unsigned long cbm) { - unsigned long *cbm = (unsigned long *)&_cbm; - unsigned long *cbm_b; unsigned int cbm_len; + unsigned long cbm_b; if (d->plr) { cbm_len = d->plr->r->cache.cbm_len; - cbm_b = (unsigned long *)&d->plr->cbm; - if (bitmap_intersects(cbm, cbm_b, cbm_len)) + cbm_b = d->plr->cbm; + if (bitmap_intersects(&cbm, &cbm_b, cbm_len)) return true; } return false; diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c index 1b8e86a5d5e1..b140c68bc14b 100644 --- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c +++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c @@ -975,33 +975,34 @@ static int rdtgroup_mode_show(struct kernfs_open_file *of, * is false then overlaps with any resource group or hardware entities * will be considered. * + * @cbm is unsigned long, even if only 32 bits are used, to make the + * bitmap functions work correctly. + * * Return: false if CBM does not overlap, true if it does. */ bool rdtgroup_cbm_overlaps(struct rdt_resource *r, struct rdt_domain *d, - u32 _cbm, int closid, bool exclusive) + unsigned long cbm, int closid, bool exclusive) { - unsigned long *cbm = (unsigned long *)&_cbm; - unsigned long *ctrl_b; enum rdtgrp_mode mode; + unsigned long ctrl_b; u32 *ctrl; int i; /* Check for any overlap with regions used by hardware directly */ if (!exclusive) { - if (bitmap_intersects(cbm, - (unsigned long *)&r->cache.shareable_bits, - r->cache.cbm_len)) + ctrl_b = r->cache.shareable_bits; + if (bitmap_intersects(&cbm, &ctrl_b, r->cache.cbm_len)) return true; } /* Check for overlap with other resource groups */ ctrl = d->ctrl_val; for (i = 0; i < closids_supported(); i++, ctrl++) { - ctrl_b = (unsigned long *)ctrl; + ctrl_b = *ctrl; mode = rdtgroup_mode_by_closid(i); if (closid_allocated(i) && i != closid && mode != RDT_MODE_PSEUDO_LOCKSETUP) { - if (bitmap_intersects(cbm, ctrl_b, r->cache.cbm_len)) { + if (bitmap_intersects(&cbm, &ctrl_b, r->cache.cbm_len)) { if (exclusive) { if (mode == RDT_MODE_EXCLUSIVE) return true; @@ -1138,15 +1139,18 @@ out: * computed by first dividing the total cache size by the CBM length to * determine how many bytes each bit in the bitmask represents. The result * is multiplied with the number of bits set in the bitmask. + * + * @cbm is unsigned long, even if only 32 bits are used to make the + * bitmap functions work correctly. */ unsigned int rdtgroup_cbm_to_size(struct rdt_resource *r, - struct rdt_domain *d, u32 cbm) + struct rdt_domain *d, unsigned long cbm) { struct cpu_cacheinfo *ci; unsigned int size = 0; int num_b, i; - num_b = bitmap_weight((unsigned long *)&cbm, r->cache.cbm_len); + num_b = bitmap_weight(&cbm, r->cache.cbm_len); ci = get_cpu_cacheinfo(cpumask_any(&d->cpu_mask)); for (i = 0; i < ci->num_leaves; i++) { if (ci->info_list[i].level == r->cache_level) { @@ -2353,6 +2357,7 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp) u32 used_b = 0, unused_b = 0; u32 closid = rdtgrp->closid; struct rdt_resource *r; + unsigned long tmp_cbm; enum rdtgrp_mode mode; struct rdt_domain *d; int i, ret; @@ -2390,9 +2395,14 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp) * modify the CBM based on system availability. */ cbm_ensure_valid(&d->new_ctrl, r); - if (bitmap_weight((unsigned long *) &d->new_ctrl, - r->cache.cbm_len) < - r->cache.min_cbm_bits) { + /* + * Assign the u32 CBM to an unsigned long to ensure + * that bitmap_weight() does not access out-of-bound + * memory. + */ + tmp_cbm = d->new_ctrl; + if (bitmap_weight(&tmp_cbm, r->cache.cbm_len) < + r->cache.min_cbm_bits) { rdt_last_cmd_printf("no space on %s:%d\n", r->name, d->id); return -ENOSPC; From e054637597ba36d3729ba6a3a3dd7aad8e2a3003 Mon Sep 17 00:00:00 2001 From: Srikar Dronamraju Date: Sat, 6 Oct 2018 16:53:19 +0530 Subject: [PATCH 1663/1762] mm, sched/numa: Remove remaining traces of NUMA rate-limiting Remove the leftover pglist_data::numabalancing_migrate_lock and its initialization, we stopped using this lock with: efaffc5e40ae ("mm, sched/numa: Remove rate-limiting of automatic NUMA balancing migration") [ mingo: Rewrote the changelog. ] Signed-off-by: Srikar Dronamraju Acked-by: Mel Gorman Cc: Linus Torvalds Cc: Linux-MM Cc: Peter Zijlstra Cc: Rik van Riel Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1538824999-31230-1-git-send-email-srikar@linux.vnet.ibm.com Signed-off-by: Ingo Molnar --- include/linux/mmzone.h | 4 ---- mm/page_alloc.c | 10 ---------- 2 files changed, 14 deletions(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 3f4c0b167333..d4b0c79d2924 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -667,10 +667,6 @@ typedef struct pglist_data { enum zone_type kcompactd_classzone_idx; wait_queue_head_t kcompactd_wait; struct task_struct *kcompactd; -#endif -#ifdef CONFIG_NUMA_BALANCING - /* Lock serializing the migrate rate limiting window */ - spinlock_t numabalancing_migrate_lock; #endif /* * This is a per-node reserve of pages that are not available diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 706a738c0aee..e2ef1c17942f 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -6193,15 +6193,6 @@ static unsigned long __init calc_memmap_size(unsigned long spanned_pages, return PAGE_ALIGN(pages * sizeof(struct page)) >> PAGE_SHIFT; } -#ifdef CONFIG_NUMA_BALANCING -static void pgdat_init_numabalancing(struct pglist_data *pgdat) -{ - spin_lock_init(&pgdat->numabalancing_migrate_lock); -} -#else -static void pgdat_init_numabalancing(struct pglist_data *pgdat) {} -#endif - #ifdef CONFIG_TRANSPARENT_HUGEPAGE static void pgdat_init_split_queue(struct pglist_data *pgdat) { @@ -6226,7 +6217,6 @@ static void __meminit pgdat_init_internals(struct pglist_data *pgdat) { pgdat_resize_init(pgdat); - pgdat_init_numabalancing(pgdat); pgdat_init_split_queue(pgdat); pgdat_init_kcompactd(pgdat); From 184d47f0fd365108bd06ab26cdb3450b716269fd Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Mon, 8 Oct 2018 16:54:34 -0700 Subject: [PATCH 1664/1762] x86/mm: Avoid VLA in pgd_alloc() Arnd Bergmann reported that turning on -Wvla found a new (unintended) VLA usage: arch/x86/mm/pgtable.c: In function 'pgd_alloc': include/linux/build_bug.h:29:45: error: ISO C90 forbids variable length array 'u_pmds' [-Werror=vla] arch/x86/mm/pgtable.c:190:34: note: in expansion of macro 'static_cpu_has' #define PREALLOCATED_USER_PMDS (static_cpu_has(X86_FEATURE_PTI) ? \ ^~~~~~~~~~~~~~ arch/x86/mm/pgtable.c:431:16: note: in expansion of macro 'PREALLOCATED_USER_PMDS' pmd_t *u_pmds[PREALLOCATED_USER_PMDS]; ^~~~~~~~~~~~~~~~~~~~~~ Use the actual size of the array that is used for X86_FEATURE_PTI, which is known at build time, instead of the variable size. [ mingo: Squashed original fix with followup fix to avoid bisection breakage, wrote new changelog. ] Reported-by: Arnd Bergmann Original-written-by: Arnd Bergmann Reported-by: Borislav Petkov Signed-off-by: Kees Cook Cc: Andrew Morton Cc: Andy Lutomirski Cc: Arnd Bergmann Cc: Dave Hansen Cc: Joerg Roedel Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Toshi Kani Fixes: 1be3f247c288 ("x86/mm: Avoid VLA in pgd_alloc()") Link: http://lkml.kernel.org/r/20181008235434.GA35035@beast Signed-off-by: Ingo Molnar --- arch/x86/mm/pgtable.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index 089e78c4effd..59274e2c1ac4 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -115,6 +115,8 @@ static inline void pgd_list_del(pgd_t *pgd) #define UNSHARED_PTRS_PER_PGD \ (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD) +#define MAX_UNSHARED_PTRS_PER_PGD \ + max_t(size_t, KERNEL_PGD_BOUNDARY, PTRS_PER_PGD) static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm) @@ -181,6 +183,7 @@ static void pgd_dtor(pgd_t *pgd) * and initialize the kernel pmds here. */ #define PREALLOCATED_PMDS UNSHARED_PTRS_PER_PGD +#define MAX_PREALLOCATED_PMDS MAX_UNSHARED_PTRS_PER_PGD /* * We allocate separate PMDs for the kernel part of the user page-table @@ -189,6 +192,7 @@ static void pgd_dtor(pgd_t *pgd) */ #define PREALLOCATED_USER_PMDS (static_cpu_has(X86_FEATURE_PTI) ? \ KERNEL_PGD_PTRS : 0) +#define MAX_PREALLOCATED_USER_PMDS KERNEL_PGD_PTRS void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd) { @@ -210,7 +214,9 @@ void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd) /* No need to prepopulate any pagetable entries in non-PAE modes. */ #define PREALLOCATED_PMDS 0 +#define MAX_PREALLOCATED_PMDS 0 #define PREALLOCATED_USER_PMDS 0 +#define MAX_PREALLOCATED_USER_PMDS 0 #endif /* CONFIG_X86_PAE */ static void free_pmds(struct mm_struct *mm, pmd_t *pmds[], int count) @@ -428,8 +434,8 @@ static inline void _pgd_free(pgd_t *pgd) pgd_t *pgd_alloc(struct mm_struct *mm) { pgd_t *pgd; - pmd_t *u_pmds[PREALLOCATED_USER_PMDS]; - pmd_t *pmds[PREALLOCATED_PMDS]; + pmd_t *u_pmds[MAX_PREALLOCATED_USER_PMDS]; + pmd_t *pmds[MAX_PREALLOCATED_PMDS]; pgd = _pgd_alloc(); From 41591b38f5f8f78344954b68582b5f00e56ffe61 Mon Sep 17 00:00:00 2001 From: Chris Boot Date: Mon, 8 Oct 2018 17:07:30 +0200 Subject: [PATCH 1665/1762] mmc: block: avoid multiblock reads for the last sector in SPI mode MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On some SD cards over SPI, reading with the multiblock read command the last sector will leave the card in a bad state. Remove last sectors from the multiblock reading cmd. Signed-off-by: Chris Boot Signed-off-by: Clément Péron Cc: stable@vger.kernel.org # v4.10+ Signed-off-by: Ulf Hansson --- drivers/mmc/core/block.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index a0b9102c4c6e..e201ccb3fda4 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -1370,6 +1370,16 @@ static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq, brq->data.blocks = card->host->max_blk_count; if (brq->data.blocks > 1) { + /* + * Some SD cards in SPI mode return a CRC error or even lock up + * completely when trying to read the last block using a + * multiblock read command. + */ + if (mmc_host_is_spi(card->host) && (rq_data_dir(req) == READ) && + (blk_rq_pos(req) + blk_rq_sectors(req) == + get_capacity(md->disk))) + brq->data.blocks--; + /* * After a read error, we redo the request one sector * at a time in order to accurately determine which From ec876f4b252c4084acad259ce3e65ad97f44f040 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Thu, 4 Oct 2018 09:35:35 +0100 Subject: [PATCH 1666/1762] ARM: KVM: Correctly order SGI register entries in the cp15 array The ICC_ASGI1R and ICC_SGI0R register entries in the cp15 array are not correctly ordered, leading to a BUG() at boot time. Move them to their natural location. Fixes: 3e8a8a50c7ef ("KVM: arm: vgic-v3: Add support for ICC_SGI0R and ICC_ASGI1R accesses") Reported-by: Florian Fainelli Tested-by: Florian Fainelli Signed-off-by: Marc Zyngier --- arch/arm/kvm/coproc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm/kvm/coproc.c b/arch/arm/kvm/coproc.c index 450c7a4fbc8a..cb094e55dc5f 100644 --- a/arch/arm/kvm/coproc.c +++ b/arch/arm/kvm/coproc.c @@ -478,15 +478,15 @@ static const struct coproc_reg cp15_regs[] = { /* ICC_SGI1R */ { CRm64(12), Op1( 0), is64, access_gic_sgi}, - /* ICC_ASGI1R */ - { CRm64(12), Op1( 1), is64, access_gic_sgi}, - /* ICC_SGI0R */ - { CRm64(12), Op1( 2), is64, access_gic_sgi}, /* VBAR: swapped by interrupt.S. */ { CRn(12), CRm( 0), Op1( 0), Op2( 0), is32, NULL, reset_val, c12_VBAR, 0x00000000 }, + /* ICC_ASGI1R */ + { CRm64(12), Op1( 1), is64, access_gic_sgi}, + /* ICC_SGI0R */ + { CRm64(12), Op1( 2), is64, access_gic_sgi}, /* ICC_SRE */ { CRn(12), CRm(12), Op1( 0), Op2(5), is32, access_gic_sre }, From dc480feb454a975b7ee2c18a2f98fb34e04d3baf Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher Date: Tue, 9 Oct 2018 13:20:05 +0200 Subject: [PATCH 1667/1762] gfs2: Fix iomap buffered write support for journaled files Commit 64bc06bb32ee broke buffered writes to journaled files (chattr +j): we'll try to journal the buffer heads of the page being written to in gfs2_iomap_journaled_page_done. However, the iomap code no longer creates buffer heads, so we'll BUG() in gfs2_page_add_databufs. Fix that by creating buffer heads ourself when needed. Signed-off-by: Andreas Gruenbacher --- fs/gfs2/bmap.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index 03128ed1f34e..3c159a7f9a9e 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -975,6 +975,10 @@ static void gfs2_iomap_journaled_page_done(struct inode *inode, loff_t pos, { struct gfs2_inode *ip = GFS2_I(inode); + if (!page_has_buffers(page)) { + create_empty_buffers(page, inode->i_sb->s_blocksize, + (1 << BH_Dirty)|(1 << BH_Uptodate)); + } gfs2_page_add_databufs(ip, page, offset_in_page(pos), copied); } From 853c110982eaff0d99dace3f66f1ba58b5bfd9d5 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 9 Oct 2018 18:35:29 +0200 Subject: [PATCH 1668/1762] KVM: x86: support CONFIG_KVM_AMD=y with CONFIG_CRYPTO_DEV_CCP_DD=m SEV requires access to the AMD cryptographic device APIs, and this does not work when KVM is builtin and the crypto driver is a module. Actually the Kconfig conditions for CONFIG_KVM_AMD_SEV try to disable SEV in that case, but it does not work because the actual crypto calls are not culled, only sev_hardware_setup() is. This patch adds two CONFIG_KVM_AMD_SEV checks that gate all the remaining SEV code; it fixes this particular configuration, and drops 5 KiB of code when CONFIG_KVM_AMD_SEV=n. Reported-by: Guenter Roeck Signed-off-by: Paolo Bonzini --- arch/x86/kvm/svm.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index d96092b35936..61ccfb13899e 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -436,14 +436,18 @@ static inline struct kvm_svm *to_kvm_svm(struct kvm *kvm) static inline bool svm_sev_enabled(void) { - return max_sev_asid; + return IS_ENABLED(CONFIG_KVM_AMD_SEV) ? max_sev_asid : 0; } static inline bool sev_guest(struct kvm *kvm) { +#ifdef CONFIG_KVM_AMD_SEV struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info; return sev->active; +#else + return false; +#endif } static inline int sev_get_asid(struct kvm *kvm) From d79c3888bde6581da7ff9f9d6f581900ecb5e632 Mon Sep 17 00:00:00 2001 From: Arthur Kiyanovski Date: Tue, 9 Oct 2018 11:21:27 +0300 Subject: [PATCH 1669/1762] net: ena: fix warning in rmmod caused by double iounmap Memory mapped with devm_ioremap is automatically freed when the driver is disconnected from the device. Therefore there is no need to explicitly call devm_iounmap. Fixes: 0857d92f71b6 ("net: ena: add missing unmap bars on device removal") Fixes: 411838e7b41c ("net: ena: fix rare kernel crash when bar memory remap fails") Signed-off-by: Arthur Kiyanovski Signed-off-by: David S. Miller --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 25621a218f20..78d84ca0a378 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -3099,15 +3099,8 @@ err_rss_init: static void ena_release_bars(struct ena_com_dev *ena_dev, struct pci_dev *pdev) { - int release_bars; + int release_bars = pci_select_bars(pdev, IORESOURCE_MEM) & ENA_BAR_MASK; - if (ena_dev->mem_bar) - devm_iounmap(&pdev->dev, ena_dev->mem_bar); - - if (ena_dev->reg_bar) - devm_iounmap(&pdev->dev, ena_dev->reg_bar); - - release_bars = pci_select_bars(pdev, IORESOURCE_MEM) & ENA_BAR_MASK; pci_release_selected_regions(pdev, release_bars); } From d7703ddbd7c9cb1ab7c08e1b85b314ff8cea38e9 Mon Sep 17 00:00:00 2001 From: Arthur Kiyanovski Date: Tue, 9 Oct 2018 11:21:28 +0300 Subject: [PATCH 1670/1762] net: ena: fix rare bug when failed restart/resume is followed by driver removal In a rare scenario when ena_device_restore() fails, followed by device remove, an FLR will not be issued. In this case, the device will keep sending asynchronous AENQ keep-alive events, even after driver removal, leading to memory corruption. Fixes: 8c5c7abdeb2d ("net: ena: add power management ops to the ENA driver") Signed-off-by: Arthur Kiyanovski Signed-off-by: David S. Miller --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 78d84ca0a378..ce18e07ff5ad 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -2619,7 +2619,11 @@ err_disable_msix: ena_free_mgmnt_irq(adapter); ena_disable_msix(adapter); err_device_destroy: + ena_com_abort_admin_commands(ena_dev); + ena_com_wait_for_abort_completion(ena_dev); ena_com_admin_destroy(ena_dev); + ena_com_mmio_reg_read_request_destroy(ena_dev); + ena_com_dev_reset(ena_dev, ENA_REGS_RESET_DRIVER_INVALID_STATE); err: clear_bit(ENA_FLAG_DEVICE_RUNNING, &adapter->flags); clear_bit(ENA_FLAG_ONGOING_RESET, &adapter->flags); From 78a55d05def95144ca5fa9a64c49b2a0636a9866 Mon Sep 17 00:00:00 2001 From: Arthur Kiyanovski Date: Tue, 9 Oct 2018 11:21:29 +0300 Subject: [PATCH 1671/1762] net: ena: fix NULL dereference due to untimely napi initialization napi poll functions should be initialized before running request_irq(), to handle a rare condition where there is a pending interrupt, causing the ISR to fire immediately while the poll function wasn't set yet, causing a NULL dereference. Fixes: 1738cd3ed342 ("net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)") Signed-off-by: Arthur Kiyanovski Signed-off-by: David S. Miller --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index ce18e07ff5ad..d906293ce07d 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -1575,8 +1575,6 @@ static int ena_up_complete(struct ena_adapter *adapter) if (rc) return rc; - ena_init_napi(adapter); - ena_change_mtu(adapter->netdev, adapter->netdev->mtu); ena_refill_all_rx_bufs(adapter); @@ -1730,6 +1728,13 @@ static int ena_up(struct ena_adapter *adapter) ena_setup_io_intr(adapter); + /* napi poll functions should be initialized before running + * request_irq(), to handle a rare condition where there is a pending + * interrupt, causing the ISR to fire immediately while the poll + * function wasn't set yet, causing a null dereference + */ + ena_init_napi(adapter); + rc = ena_request_io_irq(adapter); if (rc) goto err_req_irq; From 248ab77342d0453f067b666b36f0f517ea66c361 Mon Sep 17 00:00:00 2001 From: Arthur Kiyanovski Date: Tue, 9 Oct 2018 11:21:30 +0300 Subject: [PATCH 1672/1762] net: ena: fix auto casting to boolean Eliminate potential auto casting compilation error. Fixes: 1738cd3ed342 ("net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)") Signed-off-by: Arthur Kiyanovski Signed-off-by: David S. Miller --- drivers/net/ethernet/amazon/ena/ena_eth_com.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_eth_com.c b/drivers/net/ethernet/amazon/ena/ena_eth_com.c index 1c682b76190f..2b3ff0c20155 100644 --- a/drivers/net/ethernet/amazon/ena/ena_eth_com.c +++ b/drivers/net/ethernet/amazon/ena/ena_eth_com.c @@ -245,11 +245,11 @@ static inline void ena_com_rx_set_flags(struct ena_com_rx_ctx *ena_rx_ctx, (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_MASK) >> ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_SHIFT; ena_rx_ctx->l3_csum_err = - (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_MASK) >> - ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_SHIFT; + !!((cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_MASK) >> + ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_SHIFT); ena_rx_ctx->l4_csum_err = - (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_MASK) >> - ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_SHIFT; + !!((cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_MASK) >> + ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_SHIFT); ena_rx_ctx->hash = cdesc->hash; ena_rx_ctx->frag = (cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_MASK) >> From c7cd55504a5b0fc826a2cd9540845979d24ae542 Mon Sep 17 00:00:00 2001 From: Shenghui Wang Date: Sun, 7 Oct 2018 14:45:41 +0800 Subject: [PATCH 1673/1762] dm cache: destroy migration_cache if cache target registration failed Commit 7e6358d244e47 ("dm: fix various targets to dm_register_target after module __init resources created") inadvertently introduced this bug when it moved dm_register_target() after the call to KMEM_CACHE(). Fixes: 7e6358d244e47 ("dm: fix various targets to dm_register_target after module __init resources created") Cc: stable@vger.kernel.org Signed-off-by: Shenghui Wang Signed-off-by: Mike Snitzer --- drivers/md/dm-cache-target.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c index e13d991e9fb5..b29a8327eed1 100644 --- a/drivers/md/dm-cache-target.c +++ b/drivers/md/dm-cache-target.c @@ -3484,14 +3484,13 @@ static int __init dm_cache_init(void) int r; migration_cache = KMEM_CACHE(dm_cache_migration, 0); - if (!migration_cache) { - dm_unregister_target(&cache_target); + if (!migration_cache) return -ENOMEM; - } r = dm_register_target(&cache_target); if (r) { DMERR("cache target registration failed: %d", r); + kmem_cache_destroy(migration_cache); return r; } From 9864cd5dc54cade89fd4b0954c2e522841aa247c Mon Sep 17 00:00:00 2001 From: Damien Le Moal Date: Tue, 9 Oct 2018 14:24:31 +0900 Subject: [PATCH 1674/1762] dm: fix report zone remapping to account for partition offset If dm-linear or dm-flakey are layered on top of a partition of a zoned block device, remapping of the start sector and write pointer position of the zones reported by a report zones BIO must be modified to account for the target table entry mapping (start offset within the device and entry mapping with the dm device). If the target's backing device is a partition of a whole disk, the start sector on the physical device of the partition must also be accounted for when modifying the zone information. However, dm_remap_zone_report() was not considering this last case, resulting in incorrect zone information remapping with targets using disk partitions. Fix this by calculating the target backing device start sector using the position of the completed report zones BIO and the unchanged position and size of the original report zone BIO. With this value calculated, the start sector and write pointer position of the target zones can be correctly remapped. Fixes: 10999307c14e ("dm: introduce dm_remap_zone_report()") Cc: stable@vger.kernel.org Signed-off-by: Damien Le Moal Signed-off-by: Mike Snitzer --- drivers/md/dm.c | 27 ++++++++++++++++++++------- 1 file changed, 20 insertions(+), 7 deletions(-) diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 20f7e4ef5342..45abb54037fc 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1155,12 +1155,14 @@ void dm_accept_partial_bio(struct bio *bio, unsigned n_sectors) EXPORT_SYMBOL_GPL(dm_accept_partial_bio); /* - * The zone descriptors obtained with a zone report indicate - * zone positions within the target device. The zone descriptors - * must be remapped to match their position within the dm device. - * A target may call dm_remap_zone_report after completion of a - * REQ_OP_ZONE_REPORT bio to remap the zone descriptors obtained - * from the target device mapping to the dm device. + * The zone descriptors obtained with a zone report indicate zone positions + * within the target backing device, regardless of that device is a partition + * and regardless of the target mapping start sector on the device or partition. + * The zone descriptors start sector and write pointer position must be adjusted + * to match their relative position within the dm device. + * A target may call dm_remap_zone_report() after completion of a + * REQ_OP_ZONE_REPORT bio to remap the zone descriptors obtained from the + * backing device. */ void dm_remap_zone_report(struct dm_target *ti, struct bio *bio, sector_t start) { @@ -1171,6 +1173,7 @@ void dm_remap_zone_report(struct dm_target *ti, struct bio *bio, sector_t start) struct blk_zone *zone; unsigned int nr_rep = 0; unsigned int ofst; + sector_t part_offset; struct bio_vec bvec; struct bvec_iter iter; void *addr; @@ -1178,6 +1181,15 @@ void dm_remap_zone_report(struct dm_target *ti, struct bio *bio, sector_t start) if (bio->bi_status) return; + /* + * bio sector was incremented by the request size on completion. Taking + * into account the original request sector, the target start offset on + * the backing device and the target mapping offset (ti->begin), the + * start sector of the backing device. The partition offset is always 0 + * if the target uses a whole device. + */ + part_offset = bio->bi_iter.bi_sector + ti->begin - (start + bio_end_sector(report_bio)); + /* * Remap the start sector of the reported zones. For sequential zones, * also remap the write pointer position. @@ -1195,6 +1207,7 @@ void dm_remap_zone_report(struct dm_target *ti, struct bio *bio, sector_t start) /* Set zones start sector */ while (hdr->nr_zones && ofst < bvec.bv_len) { zone = addr + ofst; + zone->start -= part_offset; if (zone->start >= start + ti->len) { hdr->nr_zones = 0; break; @@ -1206,7 +1219,7 @@ void dm_remap_zone_report(struct dm_target *ti, struct bio *bio, sector_t start) else if (zone->cond == BLK_ZONE_COND_EMPTY) zone->wp = zone->start; else - zone->wp = zone->wp + ti->begin - start; + zone->wp = zone->wp + ti->begin - start - part_offset; } ofst += sizeof(struct blk_zone); hdr->nr_zones--; From 4628a64591e6cee181237060961e98c615c33966 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 9 Oct 2018 12:19:17 +0200 Subject: [PATCH 1675/1762] mm: Preserve _PAGE_DEVMAP across mprotect() calls Currently _PAGE_DEVMAP bit is not preserved in mprotect(2) calls. As a result we will see warnings such as: BUG: Bad page map in process JobWrk0013 pte:800001803875ea25 pmd:7624381067 addr:00007f0930720000 vm_flags:280000f9 anon_vma: (null) mapping:ffff97f2384056f0 index:0 file:457-000000fe00000030-00000009-000000ca-00000001_2001.fileblock fault:xfs_filemap_fault [xfs] mmap:xfs_file_mmap [xfs] readpage: (null) CPU: 3 PID: 15848 Comm: JobWrk0013 Tainted: G W 4.12.14-2.g7573215-default #1 SLE12-SP4 (unreleased) Hardware name: Intel Corporation S2600WFD/S2600WFD, BIOS SE5C620.86B.01.00.0833.051120182255 05/11/2018 Call Trace: dump_stack+0x5a/0x75 print_bad_pte+0x217/0x2c0 ? enqueue_task_fair+0x76/0x9f0 _vm_normal_page+0xe5/0x100 zap_pte_range+0x148/0x740 unmap_page_range+0x39a/0x4b0 unmap_vmas+0x42/0x90 unmap_region+0x99/0xf0 ? vma_gap_callbacks_rotate+0x1a/0x20 do_munmap+0x255/0x3a0 vm_munmap+0x54/0x80 SyS_munmap+0x1d/0x30 do_syscall_64+0x74/0x150 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 ... when mprotect(2) gets used on DAX mappings. Also there is a wide variety of other failures that can result from the missing _PAGE_DEVMAP flag when the area gets used by get_user_pages() later. Fix the problem by including _PAGE_DEVMAP in a set of flags that get preserved by mprotect(2). Fixes: 69660fd797c3 ("x86, mm: introduce _PAGE_DEVMAP") Fixes: ebd31197931d ("powerpc/mm: Add devmap support for ppc64") Cc: Signed-off-by: Jan Kara Acked-by: Michal Hocko Reviewed-by: Johannes Thumshirn Signed-off-by: Dan Williams --- arch/powerpc/include/asm/book3s/64/pgtable.h | 4 ++-- arch/x86/include/asm/pgtable_types.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index 2fdc865ca374..2a2486526d1f 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -114,7 +114,7 @@ */ #define _HPAGE_CHG_MASK (PTE_RPN_MASK | _PAGE_HPTEFLAGS | _PAGE_DIRTY | \ _PAGE_ACCESSED | H_PAGE_THP_HUGE | _PAGE_PTE | \ - _PAGE_SOFT_DIRTY) + _PAGE_SOFT_DIRTY | _PAGE_DEVMAP) /* * user access blocked by key */ @@ -132,7 +132,7 @@ */ #define _PAGE_CHG_MASK (PTE_RPN_MASK | _PAGE_HPTEFLAGS | _PAGE_DIRTY | \ _PAGE_ACCESSED | _PAGE_SPECIAL | _PAGE_PTE | \ - _PAGE_SOFT_DIRTY) + _PAGE_SOFT_DIRTY | _PAGE_DEVMAP) #define H_PTE_PKEY (H_PTE_PKEY_BIT0 | H_PTE_PKEY_BIT1 | H_PTE_PKEY_BIT2 | \ H_PTE_PKEY_BIT3 | H_PTE_PKEY_BIT4) diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h index b64acb08a62b..106b7d0e2dae 100644 --- a/arch/x86/include/asm/pgtable_types.h +++ b/arch/x86/include/asm/pgtable_types.h @@ -124,7 +124,7 @@ */ #define _PAGE_CHG_MASK (PTE_PFN_MASK | _PAGE_PCD | _PAGE_PWT | \ _PAGE_SPECIAL | _PAGE_ACCESSED | _PAGE_DIRTY | \ - _PAGE_SOFT_DIRTY) + _PAGE_SOFT_DIRTY | _PAGE_DEVMAP) #define _HPAGE_CHG_MASK (_PAGE_CHG_MASK | _PAGE_PSE) /* From d4d2313a3c17eff4aef9a544023c2df5b9f5bedc Mon Sep 17 00:00:00 2001 From: Emil Karlson Date: Wed, 3 Oct 2018 21:43:18 +0300 Subject: [PATCH 1676/1762] mfd: cros-ec: copy the whole event in get_next_event_xfer Commit 57e94c8b974db2d83c60e1139c89a70806abbea0 caused cros-ec keyboard events be truncated on many chromebooks so that Left and Right keys on Column 12 were always 0. Use ret as memcpy len to fix this. The old code was using ec_dev->event_size, which is the event payload/data size excluding event_type header, for the length of the memcpy operation. Use ret as memcpy length to avoid the off by one and copy the whole msg->data. Fixes: 57e94c8b974d ("mfd: cros-ec: Increase maximum mkbp event size") Acked-by: Enric Balletbo i Serra Tested-by: Emil Renner Berthing Signed-off-by: Emil Karlson Signed-off-by: Benson Leung --- drivers/platform/chrome/cros_ec_proto.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c index 398393ab5df8..b6fd4838f60f 100644 --- a/drivers/platform/chrome/cros_ec_proto.c +++ b/drivers/platform/chrome/cros_ec_proto.c @@ -520,7 +520,7 @@ static int get_next_event_xfer(struct cros_ec_device *ec_dev, ret = cros_ec_cmd_xfer(ec_dev, msg); if (ret > 0) { ec_dev->event_size = ret - 1; - memcpy(&ec_dev->event_data, msg->data, ec_dev->event_size); + memcpy(&ec_dev->event_data, msg->data, ret); } return ret; From 8894891446c9380709451b99ab45c5c53adfd2fc Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 25 Sep 2018 21:06:24 -0700 Subject: [PATCH 1677/1762] of: unittest: Disable interrupt node tests for old world MAC systems On systems with OF_IMAP_OLDWORLD_MAC set in of_irq_workarounds, the devicetree interrupt parsing code is different, causing unit tests of devicetree interrupt nodes to fail. Due to a bug in unittest code, which tries to dereference an uninitialized pointer, this results in a crash. OF: /testcase-data/phandle-tests/consumer-a: arguments longer than property Unable to handle kernel paging request for data at address 0x00bc616e Faulting instruction address: 0xc08e9468 Oops: Kernel access of bad area, sig: 11 [#1] BE PREEMPT PowerMac Modules linked in: CPU: 0 PID: 1 Comm: swapper Not tainted 4.14.72-rc1-yocto-standard+ #1 task: cf8e0000 task.stack: cf8da000 NIP: c08e9468 LR: c08ea5bc CTR: c08ea5ac REGS: cf8dbb50 TRAP: 0300 Not tainted (4.14.72-rc1-yocto-standard+) MSR: 00001032 CR: 82004044 XER: 00000000 DAR: 00bc616e DSISR: 40000000 GPR00: c08ea5bc cf8dbc00 cf8e0000 c13ca517 c13ca517 c13ca8a0 00000066 00000002 GPR08: 00000063 00bc614e c0b05865 000affff 82004048 00000000 c00047f0 00000000 GPR16: c0a80000 c0a9cc34 c13ca517 c0ad1134 05ffffff 000affff c0b05860 c0abeef8 GPR24: cecec278 cecec278 c0a8c4d0 c0a885e0 c13ca8a0 05ffffff c13ca8a0 c13ca517 NIP [c08e9468] device_node_gen_full_name+0x30/0x15c LR [c08ea5bc] device_node_string+0x190/0x3c8 Call Trace: [cf8dbc00] [c007f670] trace_hardirqs_on_caller+0x118/0x1fc (unreliable) [cf8dbc40] [c08ea5bc] device_node_string+0x190/0x3c8 [cf8dbcb0] [c08eb794] pointer+0x25c/0x4d0 [cf8dbd00] [c08ebcbc] vsnprintf+0x2b4/0x5ec [cf8dbd60] [c08ec00c] vscnprintf+0x18/0x48 [cf8dbd70] [c008e268] vprintk_store+0x4c/0x22c [cf8dbda0] [c008ecac] vprintk_emit+0x94/0x130 [cf8dbdd0] [c008ff54] printk+0x5c/0x6c [cf8dbe10] [c0b8ddd4] of_unittest+0x2220/0x26f8 [cf8dbea0] [c0004434] do_one_initcall+0x4c/0x184 [cf8dbf00] [c0b4534c] kernel_init_freeable+0x13c/0x1d8 [cf8dbf30] [c0004814] kernel_init+0x24/0x118 [cf8dbf40] [c0013398] ret_from_kernel_thread+0x5c/0x64 The problem was observed when running a qemu test for the g3beige machine with devicetree unittests enabled. Disable interrupt node tests on affected systems to avoid both false unittest failures and the crash. With this patch in place, unittest on the affected system passes with the following message. dt-test ### end of unittest - 144 passed, 0 failed Fixes: 53a42093d96ef ("of: Add device tree selftests") Signed-off-by: Guenter Roeck Reviewed-by: Frank Rowand Signed-off-by: Rob Herring --- drivers/of/unittest.c | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c index 722537e14848..41b49716ac75 100644 --- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -771,6 +771,9 @@ static void __init of_unittest_parse_interrupts(void) struct of_phandle_args args; int i, rc; + if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC) + return; + np = of_find_node_by_path("/testcase-data/interrupts/interrupts0"); if (!np) { pr_err("missing testcase data\n"); @@ -845,6 +848,9 @@ static void __init of_unittest_parse_interrupts_extended(void) struct of_phandle_args args; int i, rc; + if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC) + return; + np = of_find_node_by_path("/testcase-data/interrupts/interrupts-extended0"); if (!np) { pr_err("missing testcase data\n"); @@ -1001,15 +1007,19 @@ static void __init of_unittest_platform_populate(void) pdev = of_find_device_by_node(np); unittest(pdev, "device 1 creation failed\n"); - irq = platform_get_irq(pdev, 0); - unittest(irq == -EPROBE_DEFER, "device deferred probe failed - %d\n", irq); + if (!(of_irq_workarounds & OF_IMAP_OLDWORLD_MAC)) { + irq = platform_get_irq(pdev, 0); + unittest(irq == -EPROBE_DEFER, + "device deferred probe failed - %d\n", irq); - /* Test that a parsing failure does not return -EPROBE_DEFER */ - np = of_find_node_by_path("/testcase-data/testcase-device2"); - pdev = of_find_device_by_node(np); - unittest(pdev, "device 2 creation failed\n"); - irq = platform_get_irq(pdev, 0); - unittest(irq < 0 && irq != -EPROBE_DEFER, "device parsing error failed - %d\n", irq); + /* Test that a parsing failure does not return -EPROBE_DEFER */ + np = of_find_node_by_path("/testcase-data/testcase-device2"); + pdev = of_find_device_by_node(np); + unittest(pdev, "device 2 creation failed\n"); + irq = platform_get_irq(pdev, 0); + unittest(irq < 0 && irq != -EPROBE_DEFER, + "device parsing error failed - %d\n", irq); + } np = of_find_node_by_path("/testcase-data/platform-tests"); unittest(np, "No testcase data in device tree\n"); From 4f666675cdff0b986195413215eb062b7da6586f Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Mon, 8 Oct 2018 22:03:57 +0200 Subject: [PATCH 1678/1762] libertas: call into generic suspend code before turning off power When powering down a SDIO connected card during suspend, make sure to call into the generic lbs_suspend() function before pulling the plug. This will make sure the card is successfully deregistered from the system to avoid communication to the card starving out. Fixes: 7444a8092906 ("libertas: fix suspend and resume for SDIO connected cards") Signed-off-by: Daniel Mack Reviewed-by: Ulf Hansson Acked-by: Kalle Valo Signed-off-by: Ulf Hansson --- drivers/net/wireless/marvell/libertas/if_sdio.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/marvell/libertas/if_sdio.c b/drivers/net/wireless/marvell/libertas/if_sdio.c index 43743c26c071..39bf85d0ade0 100644 --- a/drivers/net/wireless/marvell/libertas/if_sdio.c +++ b/drivers/net/wireless/marvell/libertas/if_sdio.c @@ -1317,6 +1317,10 @@ static int if_sdio_suspend(struct device *dev) if (priv->wol_criteria == EHS_REMOVE_WAKEUP) { dev_info(dev, "Suspend without wake params -- powering down card\n"); if (priv->fw_ready) { + ret = lbs_suspend(priv); + if (ret) + return ret; + priv->power_up_on_resume = true; if_sdio_power_off(card); } From 3e779a2e7f909015f21428b66834127496110b6d Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Mon, 8 Oct 2018 09:32:13 -0700 Subject: [PATCH 1679/1762] gpio: Assign gpio_irq_chip::parents to non-stack pointer gpiochip_set_cascaded_irqchip() is passed 'parent_irq' as an argument and then the address of that argument is assigned to the gpio chips gpio_irq_chip 'parents' pointer shortly thereafter. This can't ever work, because we've just assigned some stack address to a pointer that we plan to dereference later in gpiochip_irq_map(). I ran into this issue with the KASAN report below when gpiochip_irq_map() tried to setup the parent irq with a total junk pointer for the 'parents' array. BUG: KASAN: stack-out-of-bounds in gpiochip_irq_map+0x228/0x248 Read of size 4 at addr ffffffc0dde472e0 by task swapper/0/1 CPU: 7 PID: 1 Comm: swapper/0 Not tainted 4.14.72 #34 Call trace: [] dump_backtrace+0x0/0x718 [] show_stack+0x20/0x2c [] __dump_stack+0x20/0x28 [] dump_stack+0x80/0xbc [] print_address_description+0x70/0x238 [] kasan_report+0x1cc/0x260 [] __asan_report_load4_noabort+0x2c/0x38 [] gpiochip_irq_map+0x228/0x248 [] irq_domain_associate+0x114/0x2ec [] irq_create_mapping+0x120/0x234 [] irq_create_fwspec_mapping+0x4c8/0x88c [] irq_create_of_mapping+0x180/0x210 [] of_irq_get+0x138/0x198 [] spi_drv_probe+0x94/0x178 [] driver_probe_device+0x51c/0x824 [] __device_attach_driver+0x148/0x20c [] bus_for_each_drv+0x120/0x188 [] __device_attach+0x19c/0x2dc [] device_initial_probe+0x20/0x2c [] bus_probe_device+0x80/0x154 [] device_add+0x9b8/0xbdc [] spi_add_device+0x1b8/0x380 [] spi_register_controller+0x111c/0x1378 [] spi_geni_probe+0x4dc/0x6f8 [] platform_drv_probe+0xdc/0x130 [] driver_probe_device+0x51c/0x824 [] __driver_attach+0x100/0x194 [] bus_for_each_dev+0x104/0x16c [] driver_attach+0x48/0x54 [] bus_add_driver+0x274/0x498 [] driver_register+0x1ac/0x230 [] __platform_driver_register+0xcc/0xdc [] spi_geni_driver_init+0x1c/0x24 [] do_one_initcall+0x240/0x3dc [] kernel_init_freeable+0x378/0x468 [] kernel_init+0x14/0x110 [] ret_from_fork+0x10/0x18 The buggy address belongs to the page: page:ffffffbf037791c0 count:0 mapcount:0 mapping: (null) index:0x0 flags: 0x4000000000000000() raw: 4000000000000000 0000000000000000 0000000000000000 00000000ffffffff raw: ffffffbf037791e0 ffffffbf037791e0 0000000000000000 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffffffc0dde47180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffc0dde47200: f1 f1 f1 f1 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f2 f2 >ffffffc0dde47280: f2 f2 00 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3 ^ ffffffc0dde47300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffc0dde47380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Let's leave around one unsigned int in the gpio_irq_chip struct for the single parent irq case and repoint the 'parents' array at it. This way code is left mostly intact to setup parents and we waste an extra few bytes per structure of which there should be only a handful in a system. Cc: Evan Green Cc: Thierry Reding Cc: Grygorii Strashko Fixes: e0d897289813 ("gpio: Implement tighter IRQ chip integration") Signed-off-by: Stephen Boyd Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib.c | 3 ++- include/linux/gpio/driver.h | 7 +++++++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index a57300c1d649..25187403e3ac 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1682,7 +1682,8 @@ static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip, irq_set_chained_handler_and_data(parent_irq, parent_handler, gpiochip); - gpiochip->irq.parents = &parent_irq; + gpiochip->irq.parent_irq = parent_irq; + gpiochip->irq.parents = &gpiochip->irq.parent_irq; gpiochip->irq.num_parents = 1; } diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 0ea328e71ec9..a4d5eb37744a 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -94,6 +94,13 @@ struct gpio_irq_chip { */ unsigned int num_parents; + /** + * @parent_irq: + * + * For use by gpiochip_set_cascaded_irqchip() + */ + unsigned int parent_irq; + /** * @parents: * From 9641faa2db7e856f50a6d1169e1b9f01e7fcb2b0 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 10 Oct 2018 10:37:13 +0200 Subject: [PATCH 1680/1762] ASoC: max98988: add I2C dependency max98988 only builds with I2C support enabled, otherwise we get a build error: sound/soc/codecs/max98088.c:1789:1: error: data definition has no type or storage class [-Werror] module_i2c_driver(max98088_i2c_driver); ^~~~~~~~~~~~~~~~~ sound/soc/codecs/max98088.c:1789:1: error: type defaults to 'int' in declaration of 'module_i2c_driver' [-Werror=implicit-int] sound/soc/codecs/max98088.c:1789:1: error: parameter names (without types) in function declaration [-Werror] sound/soc/codecs/max98088.c:1780:26: error: 'max98088_i2c_driver' defined but not used [-Werror=unused-variable] Fixes: 24ae67c58250 ("ASoC: max98988: make it selectable") Signed-off-by: Arnd Bergmann Reviewed-by: Marco Felsch Signed-off-by: Mark Brown --- sound/soc/codecs/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 3c6bd6019b92..774d38310875 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -641,6 +641,7 @@ config SND_SOC_LM49453 config SND_SOC_MAX98088 tristate "Maxim MAX98088/9 Low-Power, Stereo Audio Codec" + depends on I2C config SND_SOC_MAX98090 tristate From 82ab7e9a4d3fcec27f745be04063e17da1881dda Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 10 Oct 2018 02:20:42 +0000 Subject: [PATCH 1681/1762] ASoC: rsnd: use 32bit TDM width as default commit fb2815f44a9e ("ASoC: rsnd: add support for 16/24 bit slot widths") added TDM width check, and return error if it was not 16/24/32 bit. But it is too strict. This patch uses 32bit same as default. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/sh/rcar/core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index 40d7dc4f7839..f930f51b686f 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -744,8 +744,8 @@ static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai, case 32: break; default: - dev_err(dev, "unsupported slot width value: %d\n", slot_width); - return -EINVAL; + /* use default */ + slot_width = 32; } switch (slots) { From 8036dbc490d16dc3d998246e14c9507ec8272ae2 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 10 Oct 2018 02:22:29 +0000 Subject: [PATCH 1682/1762] ASoC: audio-graph-card: enable mclk-fs on codec node Current audio-graph-card is supporting mclk-fs on CPU node side only. But having Codec node also is good idea. It will be just ignored if not defined. "rcpu_ep" is same as "cpu_ep", This patch tidyup it, too. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/audio-graph-card.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c index fb6635f8d5d7..25c819e402e1 100644 --- a/sound/soc/generic/audio-graph-card.c +++ b/sound/soc/generic/audio-graph-card.c @@ -182,7 +182,8 @@ static int asoc_graph_card_dai_link_of(struct device_node *cpu_port, if (ret < 0) goto dai_link_of_err; - of_property_read_u32(rcpu_ep, "mclk-fs", &dai_props->mclk_fs); + of_property_read_u32(cpu_ep, "mclk-fs", &dai_props->mclk_fs); + of_property_read_u32(codec_ep, "mclk-fs", &dai_props->mclk_fs); ret = asoc_simple_card_parse_graph_cpu(cpu_ep, dai_link); if (ret < 0) From f259f896f2348f0302f6f88d4382378cf9d23a7e Mon Sep 17 00:00:00 2001 From: Marco Felsch Date: Tue, 2 Oct 2018 10:06:46 +0200 Subject: [PATCH 1683/1762] pinctrl: mcp23s08: fix irq and irqchip setup order MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Since 'commit 02e389e63e35 ("pinctrl: mcp23s08: fix irq setup order")' the irq request isn't the last devm_* allocation. Without a deeper look at the irq and testing this isn't a good solution. Since this driver relies on the devm mechanism, requesting a interrupt should be the last thing to avoid memory corruptions during unbinding. 'Commit 02e389e63e35 ("pinctrl: mcp23s08: fix irq setup order")' fixed the order for the interrupt-controller use case only. The mcp23s08_irq_setup() must be split into two to fix it for the interrupt-controller use case and to register the irq at last. So the irq will be freed first during unbind. Cc: stable@vger.kernel.org Cc: Jan Kundrát Cc: Dmitry Mastykin Cc: Sebastian Reichel Fixes: 82039d244f87 ("pinctrl: mcp23s08: add pinconf support") Fixes: 02e389e63e35 ("pinctrl: mcp23s08: fix irq setup order") Signed-off-by: Marco Felsch Tested-by: Phil Reid Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-mcp23s08.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/pinctrl/pinctrl-mcp23s08.c b/drivers/pinctrl/pinctrl-mcp23s08.c index 4a8a8efadefa..cf73a403d22d 100644 --- a/drivers/pinctrl/pinctrl-mcp23s08.c +++ b/drivers/pinctrl/pinctrl-mcp23s08.c @@ -636,6 +636,14 @@ static int mcp23s08_irq_setup(struct mcp23s08 *mcp) return err; } + return 0; +} + +static int mcp23s08_irqchip_setup(struct mcp23s08 *mcp) +{ + struct gpio_chip *chip = &mcp->chip; + int err; + err = gpiochip_irqchip_add_nested(chip, &mcp23s08_irq_chip, 0, @@ -912,7 +920,7 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev, } if (mcp->irq && mcp->irq_controller) { - ret = mcp23s08_irq_setup(mcp); + ret = mcp23s08_irqchip_setup(mcp); if (ret) goto fail; } @@ -944,6 +952,9 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev, goto fail; } + if (mcp->irq) + ret = mcp23s08_irq_setup(mcp); + fail: if (ret < 0) dev_dbg(dev, "can't setup chip %d, --> %d\n", addr, ret); From beb9caac211c1be1bc118bb62d5cf09c4107e6a5 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Wed, 10 Oct 2018 12:01:55 -0400 Subject: [PATCH 1684/1762] dm linear: eliminate linear_end_io call if CONFIG_DM_ZONED disabled It is best to avoid any extra overhead associated with bio completion. DM core will indirectly call a DM target's .end_io if it is defined. In the case of DM linear, there is no need to do so (for every bio that completes) if CONFIG_DM_ZONED is not enabled. Avoiding an extra indirect call for every bio completion is very important for ensuring DM linear doesn't incur more overhead that further widens the performance gap between dm-linear and raw block devices. Fixes: 0be12c1c7fce7 ("dm linear: add support for zoned block devices") Cc: stable@vger.kernel.org Signed-off-by: Mike Snitzer --- drivers/md/dm-linear.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c index d10964d41fd7..172f6fa83c0d 100644 --- a/drivers/md/dm-linear.c +++ b/drivers/md/dm-linear.c @@ -102,6 +102,7 @@ static int linear_map(struct dm_target *ti, struct bio *bio) return DM_MAPIO_REMAPPED; } +#ifdef CONFIG_DM_ZONED static int linear_end_io(struct dm_target *ti, struct bio *bio, blk_status_t *error) { @@ -112,6 +113,7 @@ static int linear_end_io(struct dm_target *ti, struct bio *bio, return DM_ENDIO_DONE; } +#endif static void linear_status(struct dm_target *ti, status_type_t type, unsigned status_flags, char *result, unsigned maxlen) @@ -208,12 +210,16 @@ static size_t linear_dax_copy_to_iter(struct dm_target *ti, pgoff_t pgoff, static struct target_type linear_target = { .name = "linear", .version = {1, 4, 0}, +#ifdef CONFIG_DM_ZONED + .end_io = linear_end_io, .features = DM_TARGET_PASSES_INTEGRITY | DM_TARGET_ZONED_HM, +#else + .features = DM_TARGET_PASSES_INTEGRITY, +#endif .module = THIS_MODULE, .ctr = linear_ctr, .dtr = linear_dtr, .map = linear_map, - .end_io = linear_end_io, .status = linear_status, .prepare_ioctl = linear_prepare_ioctl, .iterate_devices = linear_iterate_devices, From 5318321d367c21ca1fe9eb00caefc239c938750a Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 18 Sep 2018 12:58:33 +0900 Subject: [PATCH 1685/1762] samples: disable CONFIG_SAMPLES for UML Some samples require headers installation, so commit 3fca1700c4c3 ("kbuild: make samples really depend on headers_install") added such dependency in the top Makefile. However, UML fails to build with CONFIG_SAMPLES=y because UML does not support headers_install. Fixes: 3fca1700c4c3 ("kbuild: make samples really depend on headers_install") Reported-by: Kees Cook Cc: David Howells Signed-off-by: Masahiro Yamada --- samples/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/samples/Kconfig b/samples/Kconfig index bd133efc1a56..ad1ec7016d4c 100644 --- a/samples/Kconfig +++ b/samples/Kconfig @@ -1,5 +1,6 @@ menuconfig SAMPLES bool "Sample kernel code" + depends on !UML help You can build and test sample kernel code here. From f355cfcdb251e22b9dfb78c0eef4005a9d902a35 Mon Sep 17 00:00:00 2001 From: Moshe Shemesh Date: Wed, 10 Oct 2018 16:09:25 +0300 Subject: [PATCH 1686/1762] devlink: Fix param set handling for string type In case devlink param type is string, it needs to copy the string value it got from the input to devlink_param_value. Fixes: e3b7ca18ad7b ("devlink: Add param set command") Signed-off-by: Moshe Shemesh Signed-off-by: David S. Miller --- include/net/devlink.h | 2 +- net/core/devlink.c | 11 ++++++++--- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/include/net/devlink.h b/include/net/devlink.h index b9b89d6604d4..b0e17c025fdc 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -311,7 +311,7 @@ union devlink_param_value { u8 vu8; u16 vu16; u32 vu32; - const char *vstr; + char vstr[DEVLINK_PARAM_MAX_STRING_VALUE]; bool vbool; }; diff --git a/net/core/devlink.c b/net/core/devlink.c index 8c0ed225e280..d808af7a5c52 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -2995,6 +2995,8 @@ devlink_param_value_get_from_info(const struct devlink_param *param, struct genl_info *info, union devlink_param_value *value) { + int len; + if (param->type != DEVLINK_PARAM_TYPE_BOOL && !info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]) return -EINVAL; @@ -3010,10 +3012,13 @@ devlink_param_value_get_from_info(const struct devlink_param *param, value->vu32 = nla_get_u32(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]); break; case DEVLINK_PARAM_TYPE_STRING: - if (nla_len(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]) > - DEVLINK_PARAM_MAX_STRING_VALUE) + len = strnlen(nla_data(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]), + nla_len(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA])); + if (len == nla_len(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]) || + len >= DEVLINK_PARAM_MAX_STRING_VALUE) return -EINVAL; - value->vstr = nla_data(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]); + strcpy(value->vstr, + nla_data(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA])); break; case DEVLINK_PARAM_TYPE_BOOL: value->vbool = info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA] ? From 1276534c988ba752fa01bf090412a877ee783829 Mon Sep 17 00:00:00 2001 From: Moshe Shemesh Date: Wed, 10 Oct 2018 16:09:26 +0300 Subject: [PATCH 1687/1762] devlink: Fix param cmode driverinit for string type Driverinit configuration mode value is held by devlink to enable the driver fetch the value after reload command. In case the param type is string devlink should copy the value from driver string buffer to devlink string buffer on devlink_param_driverinit_value_set() and vice-versa on devlink_param_driverinit_value_get(). Fixes: ec01aeb1803e ("devlink: Add support for get/set driverinit value") Signed-off-by: Moshe Shemesh Acked-by: Jiri Pirko Signed-off-by: David S. Miller --- net/core/devlink.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/net/core/devlink.c b/net/core/devlink.c index d808af7a5c52..1a0de1677197 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -3105,7 +3105,10 @@ static int devlink_nl_cmd_param_set_doit(struct sk_buff *skb, return -EOPNOTSUPP; if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) { - param_item->driverinit_value = value; + if (param->type == DEVLINK_PARAM_TYPE_STRING) + strcpy(param_item->driverinit_value.vstr, value.vstr); + else + param_item->driverinit_value = value; param_item->driverinit_value_valid = true; } else { if (!param->set) @@ -4545,7 +4548,10 @@ int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, DEVLINK_PARAM_CMODE_DRIVERINIT)) return -EOPNOTSUPP; - *init_val = param_item->driverinit_value; + if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) + strcpy(init_val->vstr, param_item->driverinit_value.vstr); + else + *init_val = param_item->driverinit_value; return 0; } @@ -4576,7 +4582,10 @@ int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, DEVLINK_PARAM_CMODE_DRIVERINIT)) return -EOPNOTSUPP; - param_item->driverinit_value = init_val; + if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) + strcpy(param_item->driverinit_value.vstr, init_val.vstr); + else + param_item->driverinit_value = init_val; param_item->driverinit_value_valid = true; devlink_param_notify(devlink, param_item, DEVLINK_CMD_PARAM_NEW); From bde74ad10eb55aaa472c37b107934e6b8563c25e Mon Sep 17 00:00:00 2001 From: Moshe Shemesh Date: Wed, 10 Oct 2018 16:09:27 +0300 Subject: [PATCH 1688/1762] devlink: Add helper function for safely copy string param Devlink string param buffer is allocated at the size of DEVLINK_PARAM_MAX_STRING_VALUE. Add helper function which makes sure this size is not exceeded. Renamed DEVLINK_PARAM_MAX_STRING_VALUE to __DEVLINK_PARAM_MAX_STRING_VALUE to emphasize that it should be used by devlink only. The driver should use the helper function instead to verify it doesn't exceed the allowed length. Signed-off-by: Moshe Shemesh Acked-by: Jiri Pirko Signed-off-by: David S. Miller --- include/net/devlink.h | 12 ++++++++++-- net/core/devlink.c | 19 ++++++++++++++++++- 2 files changed, 28 insertions(+), 3 deletions(-) diff --git a/include/net/devlink.h b/include/net/devlink.h index b0e17c025fdc..99efc156a309 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -298,7 +298,7 @@ struct devlink_resource { #define DEVLINK_RESOURCE_ID_PARENT_TOP 0 -#define DEVLINK_PARAM_MAX_STRING_VALUE 32 +#define __DEVLINK_PARAM_MAX_STRING_VALUE 32 enum devlink_param_type { DEVLINK_PARAM_TYPE_U8, DEVLINK_PARAM_TYPE_U16, @@ -311,7 +311,7 @@ union devlink_param_value { u8 vu8; u16 vu16; u32 vu32; - char vstr[DEVLINK_PARAM_MAX_STRING_VALUE]; + char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE]; bool vbool; }; @@ -553,6 +553,8 @@ int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, union devlink_param_value init_val); void devlink_param_value_changed(struct devlink *devlink, u32 param_id); +void devlink_param_value_str_fill(union devlink_param_value *dst_val, + const char *src); struct devlink_region *devlink_region_create(struct devlink *devlink, const char *region_name, u32 region_max_snapshots, @@ -789,6 +791,12 @@ devlink_param_value_changed(struct devlink *devlink, u32 param_id) { } +static inline void +devlink_param_value_str_fill(union devlink_param_value *dst_val, + const char *src) +{ +} + static inline struct devlink_region * devlink_region_create(struct devlink *devlink, const char *region_name, diff --git a/net/core/devlink.c b/net/core/devlink.c index 1a0de1677197..6bc42933be4a 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -3015,7 +3015,7 @@ devlink_param_value_get_from_info(const struct devlink_param *param, len = strnlen(nla_data(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]), nla_len(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA])); if (len == nla_len(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]) || - len >= DEVLINK_PARAM_MAX_STRING_VALUE) + len >= __DEVLINK_PARAM_MAX_STRING_VALUE) return -EINVAL; strcpy(value->vstr, nla_data(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA])); @@ -4617,6 +4617,23 @@ void devlink_param_value_changed(struct devlink *devlink, u32 param_id) } EXPORT_SYMBOL_GPL(devlink_param_value_changed); +/** + * devlink_param_value_str_fill - Safely fill-up the string preventing + * from overflow of the preallocated buffer + * + * @dst_val: destination devlink_param_value + * @src: source buffer + */ +void devlink_param_value_str_fill(union devlink_param_value *dst_val, + const char *src) +{ + size_t len; + + len = strlcpy(dst_val->vstr, src, __DEVLINK_PARAM_MAX_STRING_VALUE); + WARN_ON(len >= __DEVLINK_PARAM_MAX_STRING_VALUE); +} +EXPORT_SYMBOL_GPL(devlink_param_value_str_fill); + /** * devlink_region_create - create a new address region * From 52b5d6f5dcf0e5201392f7d417148ccb537dbf6f Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 10 Oct 2018 06:59:35 -0700 Subject: [PATCH 1689/1762] net: make skb_partial_csum_set() more robust against overflows syzbot managed to crash in skb_checksum_help() [1] : BUG_ON(offset + sizeof(__sum16) > skb_headlen(skb)); Root cause is the following check in skb_partial_csum_set() if (unlikely(start > skb_headlen(skb)) || unlikely((int)start + off > skb_headlen(skb) - 2)) return false; If skb_headlen(skb) is 1, then (skb_headlen(skb) - 2) becomes 0xffffffff and the check fails to detect that ((int)start + off) is off the limit, since the compare is unsigned. When we fix that, then the first condition (start > skb_headlen(skb)) becomes obsolete. Then we should also check that (skb_headroom(skb) + start) wont overflow 16bit field. [1] kernel BUG at net/core/dev.c:2880! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 7330 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #253 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:skb_checksum_help+0x9e3/0xbb0 net/core/dev.c:2880 Code: 85 00 ff ff ff 48 c1 e8 03 42 80 3c 28 00 0f 84 09 fb ff ff 48 8b bd 00 ff ff ff e8 97 a8 b9 fb e9 f8 fa ff ff e8 2d 09 76 fb <0f> 0b 48 8b bd 28 ff ff ff e8 1f a8 b9 fb e9 b1 f6 ff ff 48 89 cf RSP: 0018:ffff8801d83a6f60 EFLAGS: 00010293 RAX: ffff8801b9834380 RBX: ffff8801b9f8d8c0 RCX: ffffffff8608c6d7 RDX: 0000000000000000 RSI: ffffffff8608cc63 RDI: 0000000000000006 RBP: ffff8801d83a7068 R08: ffff8801b9834380 R09: 0000000000000000 R10: ffff8801d83a76d8 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000010001 R14: 000000000000ffff R15: 00000000000000a8 FS: 00007f1a66db5700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7d77f091b0 CR3: 00000001ba252000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_csum_hwoffload_help+0x8f/0xe0 net/core/dev.c:3269 validate_xmit_skb+0xa2a/0xf30 net/core/dev.c:3312 __dev_queue_xmit+0xc2f/0x3950 net/core/dev.c:3797 dev_queue_xmit+0x17/0x20 net/core/dev.c:3838 packet_snd net/packet/af_packet.c:2928 [inline] packet_sendmsg+0x422d/0x64c0 net/packet/af_packet.c:2953 Fixes: 5ff8dda3035d ("net: Ensure partial checksum offset is inside the skb head") Signed-off-by: Eric Dumazet Cc: Herbert Xu Reported-by: syzbot Signed-off-by: David S. Miller --- net/core/skbuff.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index b2c807f67aba..428094b577fc 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -4452,14 +4452,16 @@ EXPORT_SYMBOL_GPL(skb_complete_wifi_ack); */ bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off) { - if (unlikely(start > skb_headlen(skb)) || - unlikely((int)start + off > skb_headlen(skb) - 2)) { - net_warn_ratelimited("bad partial csum: csum=%u/%u len=%u\n", - start, off, skb_headlen(skb)); + u32 csum_end = (u32)start + (u32)off + sizeof(__sum16); + u32 csum_start = skb_headroom(skb) + (u32)start; + + if (unlikely(csum_start > U16_MAX || csum_end > skb_headlen(skb))) { + net_warn_ratelimited("bad partial csum: csum=%u/%u headroom=%u headlen=%u\n", + start, off, skb_headroom(skb), skb_headlen(skb)); return false; } skb->ip_summed = CHECKSUM_PARTIAL; - skb->csum_start = skb_headroom(skb) + start; + skb->csum_start = csum_start; skb->csum_offset = off; skb_set_transport_header(skb, start); return true; From dd9a403495704fc80fb9f399003013ef2be2ee23 Mon Sep 17 00:00:00 2001 From: Valentine Fatiev Date: Wed, 10 Oct 2018 09:56:25 +0300 Subject: [PATCH 1690/1762] IB/mlx5: Unmap DMA addr from HCA before IOMMU The function that puts back the MR in cache also removes the DMA address from the HCA. Therefore we need to call this function before we remove the DMA mapping from MMU. Otherwise the HCA may access a memory that is no longer DMA mapped. Call trace: NMI: IOCK error (debug interrupt?) for reason 71 on CPU 0. CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.0-rc6+ #4 Hardware name: HP ProLiant DL360p Gen8, BIOS P71 08/20/2012 RIP: 0010:intel_idle+0x73/0x120 Code: 80 5c 01 00 0f ae 38 0f ae f0 31 d2 65 48 8b 04 25 80 5c 01 00 48 89 d1 0f 60 02 RSP: 0018:ffffffff9a403e38 EFLAGS: 00000046 RAX: 0000000000000030 RBX: 0000000000000005 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff9a5790c0 RDI: 0000000000000000 RBP: 0000000000000030 R08: 0000000000000000 R09: 0000000000007cf9 R10: 000000000000030a R11: 0000000000000018 R12: 0000000000000000 R13: ffffffff9a5792b8 R14: ffffffff9a5790c0 R15: 0000002b48471e4d FS: 0000000000000000(0000) GS:ffff9c6caf400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5737185000 CR3: 0000000590c0a002 CR4: 00000000000606f0 Call Trace: cpuidle_enter_state+0x7e/0x2e0 do_idle+0x1ed/0x290 cpu_startup_entry+0x6f/0x80 start_kernel+0x524/0x544 ? set_init_arg+0x55/0x55 secondary_startup_64+0xa4/0xb0 DMAR: DRHD: handling fault status reg 2 DMAR: [DMA Read] Request device [04:00.0] fault addr b34d2000 [fault reason 06] PTE Read access is not set DMAR: [DMA Read] Request device [01:00.2] fault addr bff8b000 [fault reason 06] PTE Read access is not set Fixes: f3f134f5260a ("RDMA/mlx5: Fix crash while accessing garbage pointer and freed memory") Signed-off-by: Valentine Fatiev Reviewed-by: Moni Shoua Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford --- drivers/infiniband/hw/mlx5/mr.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index 9fb1d9cb9401..e22314837645 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -544,6 +544,9 @@ void mlx5_mr_cache_free(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr) int shrink = 0; int c; + if (!mr->allocated_from_cache) + return; + c = order2idx(dev, mr->order); if (c < 0 || c >= MAX_MR_CACHE_ENTRIES) { mlx5_ib_warn(dev, "order %d, cache index %d\n", mr->order, c); @@ -1647,18 +1650,19 @@ static void dereg_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr) umem = NULL; } #endif - clean_mr(dev, mr); + /* + * We should unregister the DMA address from the HCA before + * remove the DMA mapping. + */ + mlx5_mr_cache_free(dev, mr); if (umem) { ib_umem_release(umem); atomic_sub(npages, &dev->mdev->priv.reg_pages); } - if (!mr->allocated_from_cache) kfree(mr); - else - mlx5_mr_cache_free(dev, mr); } int mlx5_ib_dereg_mr(struct ib_mr *ibmr) From 118aa47c7072bce05fc39bd40a1c0a90caed72ab Mon Sep 17 00:00:00 2001 From: Damien Le Moal Date: Thu, 11 Oct 2018 11:45:30 +0900 Subject: [PATCH 1691/1762] dm linear: fix linear_end_io conditional definition The dm-linear target is independent of the dm-zoned target. For code requiring support for zoned block devices, use CONFIG_BLK_DEV_ZONED instead of CONFIG_DM_ZONED. While at it, similarly to dm linear, also enable the DM_TARGET_ZONED_HM feature in dm-flakey only if CONFIG_BLK_DEV_ZONED is defined. Fixes: beb9caac211c1 ("dm linear: eliminate linear_end_io call if CONFIG_DM_ZONED disabled") Fixes: 0be12c1c7fce7 ("dm linear: add support for zoned block devices") Cc: stable@vger.kernel.org Signed-off-by: Damien Le Moal Signed-off-by: Mike Snitzer --- drivers/md/dm-flakey.c | 2 ++ drivers/md/dm-linear.c | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c index 21d126a5078c..32aabe27b37c 100644 --- a/drivers/md/dm-flakey.c +++ b/drivers/md/dm-flakey.c @@ -467,7 +467,9 @@ static int flakey_iterate_devices(struct dm_target *ti, iterate_devices_callout_ static struct target_type flakey_target = { .name = "flakey", .version = {1, 5, 0}, +#ifdef CONFIG_BLK_DEV_ZONED .features = DM_TARGET_ZONED_HM, +#endif .module = THIS_MODULE, .ctr = flakey_ctr, .dtr = flakey_dtr, diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c index 172f6fa83c0d..2f7c44a006c4 100644 --- a/drivers/md/dm-linear.c +++ b/drivers/md/dm-linear.c @@ -102,7 +102,7 @@ static int linear_map(struct dm_target *ti, struct bio *bio) return DM_MAPIO_REMAPPED; } -#ifdef CONFIG_DM_ZONED +#ifdef CONFIG_BLK_DEV_ZONED static int linear_end_io(struct dm_target *ti, struct bio *bio, blk_status_t *error) { @@ -210,7 +210,7 @@ static size_t linear_dax_copy_to_iter(struct dm_target *ti, pgoff_t pgoff, static struct target_type linear_target = { .name = "linear", .version = {1, 4, 0}, -#ifdef CONFIG_DM_ZONED +#ifdef CONFIG_BLK_DEV_ZONED .end_io = linear_end_io, .features = DM_TARGET_PASSES_INTEGRITY | DM_TARGET_ZONED_HM, #else From 9a4890bd6d6325a1c88564a20ab310b2d56f6094 Mon Sep 17 00:00:00 2001 From: Ka-Cheong Poon Date: Mon, 8 Oct 2018 09:17:11 -0700 Subject: [PATCH 1692/1762] rds: RDS (tcp) hangs on sendto() to unresponding address In rds_send_mprds_hash(), if the calculated hash value is non-zero and the MPRDS connections are not yet up, it will wait. But it should not wait if the send is non-blocking. In this case, it should just use the base c_path for sending the message. Signed-off-by: Ka-Cheong Poon Acked-by: Santosh Shilimkar Signed-off-by: David S. Miller --- net/rds/send.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/net/rds/send.c b/net/rds/send.c index 57b3d5a8b2db..fe785ee819dd 100644 --- a/net/rds/send.c +++ b/net/rds/send.c @@ -1007,7 +1007,8 @@ static int rds_cmsg_send(struct rds_sock *rs, struct rds_message *rm, return ret; } -static int rds_send_mprds_hash(struct rds_sock *rs, struct rds_connection *conn) +static int rds_send_mprds_hash(struct rds_sock *rs, + struct rds_connection *conn, int nonblock) { int hash; @@ -1023,10 +1024,16 @@ static int rds_send_mprds_hash(struct rds_sock *rs, struct rds_connection *conn) * used. But if we are interrupted, we have to use the zero * c_path in case the connection ends up being non-MP capable. */ - if (conn->c_npaths == 0) + if (conn->c_npaths == 0) { + /* Cannot wait for the connection be made, so just use + * the base c_path. + */ + if (nonblock) + return 0; if (wait_event_interruptible(conn->c_hs_waitq, conn->c_npaths != 0)) hash = 0; + } if (conn->c_npaths == 1) hash = 0; } @@ -1256,7 +1263,7 @@ int rds_sendmsg(struct socket *sock, struct msghdr *msg, size_t payload_len) } if (conn->c_trans->t_mp_capable) - cpath = &conn->c_path[rds_send_mprds_hash(rs, conn)]; + cpath = &conn->c_path[rds_send_mprds_hash(rs, conn, nonblock)]; else cpath = &conn->c_path[0]; From 7abab7b9b498650404800a08765f44929fee8f31 Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Tue, 9 Oct 2018 07:02:01 +0300 Subject: [PATCH 1693/1762] net/ipv6: stop leaking percpu memory in fib6 info The fib6_info_alloc() function allocates percpu memory to hold per CPU pointers to rt6_info, but this memory is never freed. Fix it. Fixes: a64efe142f5e ("net/ipv6: introduce fib6_info struct and helpers") Signed-off-by: Mike Rapoport Reviewed-by: David Ahern Signed-off-by: David S. Miller --- net/ipv6/ip6_fib.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 5516f55e214b..cbe46175bb59 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -196,6 +196,8 @@ void fib6_info_destroy_rcu(struct rcu_head *head) *ppcpu_rt = NULL; } } + + free_percpu(f6i->rt6i_pcpu); } lwtstate_put(f6i->fib6_nh.nh_lwtstate); From af7d6cce53694a88d6a1bb60c9a239a6a5144459 Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Tue, 9 Oct 2018 17:48:14 +0200 Subject: [PATCH 1694/1762] net: ipv4: update fnhe_pmtu when first hop's MTU changes Since commit 5aad1de5ea2c ("ipv4: use separate genid for next hop exceptions"), exceptions get deprecated separately from cached routes. In particular, administrative changes don't clear PMTU anymore. As Stefano described in commit e9fa1495d738 ("ipv6: Reflect MTU changes on PMTU of exceptions for MTU-less routes"), the PMTU discovered before the local MTU change can become stale: - if the local MTU is now lower than the PMTU, that PMTU is now incorrect - if the local MTU was the lowest value in the path, and is increased, we might discover a higher PMTU Similarly to what commit e9fa1495d738 did for IPv6, update PMTU in those cases. If the exception was locked, the discovered PMTU was smaller than the minimal accepted PMTU. In that case, if the new local MTU is smaller than the current PMTU, let PMTU discovery figure out if locking of the exception is still needed. To do this, we need to know the old link MTU in the NETDEV_CHANGEMTU notifier. By the time the notifier is called, dev->mtu has been changed. This patch adds the old MTU as additional information in the notifier structure, and a new call_netdevice_notifiers_u32() function. Fixes: 5aad1de5ea2c ("ipv4: use separate genid for next hop exceptions") Signed-off-by: Sabrina Dubroca Reviewed-by: Stefano Brivio Reviewed-by: David Ahern Signed-off-by: David S. Miller --- include/linux/netdevice.h | 7 ++++++ include/net/ip_fib.h | 1 + net/core/dev.c | 28 ++++++++++++++++++++-- net/ipv4/fib_frontend.c | 12 ++++++---- net/ipv4/fib_semantics.c | 50 +++++++++++++++++++++++++++++++++++++++ 5 files changed, 92 insertions(+), 6 deletions(-) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index c7861e4b402c..d837dad24b4c 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2458,6 +2458,13 @@ struct netdev_notifier_info { struct netlink_ext_ack *extack; }; +struct netdev_notifier_info_ext { + struct netdev_notifier_info info; /* must be first */ + union { + u32 mtu; + } ext; +}; + struct netdev_notifier_change_info { struct netdev_notifier_info info; /* must be first */ unsigned int flags_changed; diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h index 69c91d1934c1..c9b7b136939d 100644 --- a/include/net/ip_fib.h +++ b/include/net/ip_fib.h @@ -394,6 +394,7 @@ int ip_fib_check_default(__be32 gw, struct net_device *dev); int fib_sync_down_dev(struct net_device *dev, unsigned long event, bool force); int fib_sync_down_addr(struct net_device *dev, __be32 local); int fib_sync_up(struct net_device *dev, unsigned int nh_flags); +void fib_sync_mtu(struct net_device *dev, u32 orig_mtu); #ifdef CONFIG_IP_ROUTE_MULTIPATH int fib_multipath_hash(const struct net *net, const struct flowi4 *fl4, diff --git a/net/core/dev.c b/net/core/dev.c index 82114e1111e6..93243479085f 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1752,6 +1752,28 @@ int call_netdevice_notifiers(unsigned long val, struct net_device *dev) } EXPORT_SYMBOL(call_netdevice_notifiers); +/** + * call_netdevice_notifiers_mtu - call all network notifier blocks + * @val: value passed unmodified to notifier function + * @dev: net_device pointer passed unmodified to notifier function + * @arg: additional u32 argument passed to the notifier function + * + * Call all network notifier blocks. Parameters and return value + * are as for raw_notifier_call_chain(). + */ +static int call_netdevice_notifiers_mtu(unsigned long val, + struct net_device *dev, u32 arg) +{ + struct netdev_notifier_info_ext info = { + .info.dev = dev, + .ext.mtu = arg, + }; + + BUILD_BUG_ON(offsetof(struct netdev_notifier_info_ext, info) != 0); + + return call_netdevice_notifiers_info(val, &info.info); +} + #ifdef CONFIG_NET_INGRESS static DEFINE_STATIC_KEY_FALSE(ingress_needed_key); @@ -7574,14 +7596,16 @@ int dev_set_mtu_ext(struct net_device *dev, int new_mtu, err = __dev_set_mtu(dev, new_mtu); if (!err) { - err = call_netdevice_notifiers(NETDEV_CHANGEMTU, dev); + err = call_netdevice_notifiers_mtu(NETDEV_CHANGEMTU, dev, + orig_mtu); err = notifier_to_errno(err); if (err) { /* setting mtu back and notifying everyone again, * so that they have a chance to revert changes. */ __dev_set_mtu(dev, orig_mtu); - call_netdevice_notifiers(NETDEV_CHANGEMTU, dev); + call_netdevice_notifiers_mtu(NETDEV_CHANGEMTU, dev, + new_mtu); } } return err; diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 2998b0e47d4b..0113993e9b2c 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -1243,7 +1243,8 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event, static int fib_netdev_event(struct notifier_block *this, unsigned long event, void *ptr) { struct net_device *dev = netdev_notifier_info_to_dev(ptr); - struct netdev_notifier_changeupper_info *info; + struct netdev_notifier_changeupper_info *upper_info = ptr; + struct netdev_notifier_info_ext *info_ext = ptr; struct in_device *in_dev; struct net *net = dev_net(dev); unsigned int flags; @@ -1278,16 +1279,19 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo fib_sync_up(dev, RTNH_F_LINKDOWN); else fib_sync_down_dev(dev, event, false); - /* fall through */ + rt_cache_flush(net); + break; case NETDEV_CHANGEMTU: + fib_sync_mtu(dev, info_ext->ext.mtu); rt_cache_flush(net); break; case NETDEV_CHANGEUPPER: - info = ptr; + upper_info = ptr; /* flush all routes if dev is linked to or unlinked from * an L3 master device (e.g., VRF) */ - if (info->upper_dev && netif_is_l3_master(info->upper_dev)) + if (upper_info->upper_dev && + netif_is_l3_master(upper_info->upper_dev)) fib_disable_ip(dev, NETDEV_DOWN, true); break; } diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index f3c89ccf14c5..446204ca7406 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -1470,6 +1470,56 @@ static int call_fib_nh_notifiers(struct fib_nh *fib_nh, return NOTIFY_DONE; } +/* Update the PMTU of exceptions when: + * - the new MTU of the first hop becomes smaller than the PMTU + * - the old MTU was the same as the PMTU, and it limited discovery of + * larger MTUs on the path. With that limit raised, we can now + * discover larger MTUs + * A special case is locked exceptions, for which the PMTU is smaller + * than the minimal accepted PMTU: + * - if the new MTU is greater than the PMTU, don't make any change + * - otherwise, unlock and set PMTU + */ +static void nh_update_mtu(struct fib_nh *nh, u32 new, u32 orig) +{ + struct fnhe_hash_bucket *bucket; + int i; + + bucket = rcu_dereference_protected(nh->nh_exceptions, 1); + if (!bucket) + return; + + for (i = 0; i < FNHE_HASH_SIZE; i++) { + struct fib_nh_exception *fnhe; + + for (fnhe = rcu_dereference_protected(bucket[i].chain, 1); + fnhe; + fnhe = rcu_dereference_protected(fnhe->fnhe_next, 1)) { + if (fnhe->fnhe_mtu_locked) { + if (new <= fnhe->fnhe_pmtu) { + fnhe->fnhe_pmtu = new; + fnhe->fnhe_mtu_locked = false; + } + } else if (new < fnhe->fnhe_pmtu || + orig == fnhe->fnhe_pmtu) { + fnhe->fnhe_pmtu = new; + } + } + } +} + +void fib_sync_mtu(struct net_device *dev, u32 orig_mtu) +{ + unsigned int hash = fib_devindex_hashfn(dev->ifindex); + struct hlist_head *head = &fib_info_devhash[hash]; + struct fib_nh *nh; + + hlist_for_each_entry(nh, head, nh_hash) { + if (nh->nh_dev == dev) + nh_update_mtu(nh, dev->mtu, orig_mtu); + } +} + /* Event force Flags Description * NETDEV_CHANGE 0 LINKDOWN Carrier OFF, not for scope host * NETDEV_DOWN 0 LINKDOWN|DEAD Link down, not for scope host From 28d35bcdd3925e7293408cdb8aa5f2aac5f0d6e3 Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Tue, 9 Oct 2018 17:48:15 +0200 Subject: [PATCH 1695/1762] net: ipv4: don't let PMTU updates increase route MTU When an MTU update with PMTU smaller than net.ipv4.route.min_pmtu is received, we must clamp its value. However, we can receive a PMTU exception with PMTU < old_mtu < ip_rt_min_pmtu, which would lead to an increase in PMTU. To fix this, take the smallest of the old MTU and ip_rt_min_pmtu. Before this patch, in case of an update, the exception's MTU would always change. Now, an exception can have only its lock flag updated, but not the MTU, so we need to add a check on locking to the following "is this exception getting updated, or close to expiring?" test. Fixes: d52e5a7e7ca4 ("ipv4: lock mtu in fnhe when received PMTU < net.ipv4.route.min_pmtu") Signed-off-by: Sabrina Dubroca Reviewed-by: Stefano Brivio Signed-off-by: David S. Miller --- net/ipv4/route.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/net/ipv4/route.c b/net/ipv4/route.c index b678466da451..8501554e96a4 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1001,21 +1001,22 @@ out: kfree_skb(skb); static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu) { struct dst_entry *dst = &rt->dst; + u32 old_mtu = ipv4_mtu(dst); struct fib_result res; bool lock = false; if (ip_mtu_locked(dst)) return; - if (ipv4_mtu(dst) < mtu) + if (old_mtu < mtu) return; if (mtu < ip_rt_min_pmtu) { lock = true; - mtu = ip_rt_min_pmtu; + mtu = min(old_mtu, ip_rt_min_pmtu); } - if (rt->rt_pmtu == mtu && + if (rt->rt_pmtu == mtu && !lock && time_before(jiffies, dst->expires - ip_rt_mtu_expires / 2)) return; From 047491ea334a454fa0647ec99dadcc6dd38417e0 Mon Sep 17 00:00:00 2001 From: Jon Maloy Date: Wed, 10 Oct 2018 17:34:01 +0200 Subject: [PATCH 1696/1762] tipc: set link tolerance correctly in broadcast link In the patch referred to below we added link tolerance as an additional criteria for declaring broadcast transmission "stale" and resetting the affected links. However, the 'tolerance' field of the broadcast link is never set, and remains at zero. This renders the whole commit without the intended improving effect, but luckily also with no negative effect. In this commit we add the missing initialization. Fixes: a4dc70d46cf1 ("tipc: extend link reset criteria for stale packet retransmission") Signed-off-by: Jon Maloy Signed-off-by: David S. Miller --- net/tipc/link.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/net/tipc/link.c b/net/tipc/link.c index fb886b525d95..d229a36968da 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -477,6 +477,8 @@ bool tipc_link_create(struct net *net, char *if_name, int bearer_id, l->in_session = false; l->bearer_id = bearer_id; l->tolerance = tolerance; + if (bc_rcvlink) + bc_rcvlink->tolerance = tolerance; l->net_plane = net_plane; l->advertised_mtu = mtu; l->mtu = mtu; @@ -1031,7 +1033,7 @@ static int tipc_link_retrans(struct tipc_link *l, struct tipc_link *r, /* Detect repeated retransmit failures on same packet */ if (r->last_retransm != buf_seqno(skb)) { r->last_retransm = buf_seqno(skb); - r->stale_limit = jiffies + msecs_to_jiffies(l->tolerance); + r->stale_limit = jiffies + msecs_to_jiffies(r->tolerance); } else if (++r->stale_cnt > 99 && time_after(jiffies, r->stale_limit)) { link_retransmit_failure(l, skb); if (link_is_bc_sndlink(l)) @@ -1576,9 +1578,10 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb, strncpy(if_name, data, TIPC_MAX_IF_NAME); /* Update own tolerance if peer indicates a non-zero value */ - if (in_range(peers_tol, TIPC_MIN_LINK_TOL, TIPC_MAX_LINK_TOL)) + if (in_range(peers_tol, TIPC_MIN_LINK_TOL, TIPC_MAX_LINK_TOL)) { l->tolerance = peers_tol; - + l->bc_rcvlink->tolerance = peers_tol; + } /* Update own priority if peer's priority is higher */ if (in_range(peers_prio, l->priority + 1, TIPC_MAX_LINK_PRI)) l->priority = peers_prio; @@ -1604,9 +1607,10 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb, l->rcv_nxt_state = msg_seqno(hdr) + 1; /* Update own tolerance if peer indicates a non-zero value */ - if (in_range(peers_tol, TIPC_MIN_LINK_TOL, TIPC_MAX_LINK_TOL)) + if (in_range(peers_tol, TIPC_MIN_LINK_TOL, TIPC_MAX_LINK_TOL)) { l->tolerance = peers_tol; - + l->bc_rcvlink->tolerance = peers_tol; + } /* Update own prio if peer indicates a different value */ if ((peers_prio != l->priority) && in_range(peers_prio, 1, TIPC_MAX_LINK_PRI)) { @@ -2223,6 +2227,8 @@ void tipc_link_set_tolerance(struct tipc_link *l, u32 tol, struct sk_buff_head *xmitq) { l->tolerance = tol; + if (l->bc_rcvlink) + l->bc_rcvlink->tolerance = tol; if (link_is_up(l)) tipc_link_build_proto_msg(l, STATE_MSG, 0, 0, 0, tol, 0, xmitq); } From e7eb05823806502747eadc31039cecfd7836ddeb Mon Sep 17 00:00:00 2001 From: Parthasarathy Bhuvaragan Date: Wed, 10 Oct 2018 17:50:23 +0200 Subject: [PATCH 1697/1762] tipc: queue socket protocol error messages into socket receive buffer In tipc_sk_filter_rcv(), when we detect protocol messages with error we call tipc_sk_conn_proto_rcv() and let it reset the connection and notify the socket by calling sk->sk_state_change(). However, tipc_sk_filter_rcv() may have been called from the function tipc_backlog_rcv(), in which case the socket lock is held and the socket already awake. This means that the sk_state_change() call is ignored and the error notification lost. Now the receive queue will remain empty and the socket sleeps forever. In this commit, we convert the protocol message into a connection abort message and enqueue it into the socket's receive queue. By this addition to the above state change we cover all conditions. Acked-by: Ying Xue Signed-off-by: Parthasarathy Bhuvaragan Signed-off-by: Jon Maloy Signed-off-by: David S. Miller --- net/tipc/socket.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index b6f99b021d09..49810fdff4c5 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -1196,6 +1196,7 @@ void tipc_sk_mcast_rcv(struct net *net, struct sk_buff_head *arrvq, * @skb: pointer to message buffer. */ static void tipc_sk_conn_proto_rcv(struct tipc_sock *tsk, struct sk_buff *skb, + struct sk_buff_head *inputq, struct sk_buff_head *xmitq) { struct tipc_msg *hdr = buf_msg(skb); @@ -1213,7 +1214,16 @@ static void tipc_sk_conn_proto_rcv(struct tipc_sock *tsk, struct sk_buff *skb, tipc_node_remove_conn(sock_net(sk), tsk_peer_node(tsk), tsk_peer_port(tsk)); sk->sk_state_change(sk); - goto exit; + + /* State change is ignored if socket already awake, + * - convert msg to abort msg and add to inqueue + */ + msg_set_user(hdr, TIPC_CRITICAL_IMPORTANCE); + msg_set_type(hdr, TIPC_CONN_MSG); + msg_set_size(hdr, BASIC_H_SIZE); + msg_set_hdr_sz(hdr, BASIC_H_SIZE); + __skb_queue_tail(inputq, skb); + return; } tsk->probe_unacked = false; @@ -1936,7 +1946,7 @@ static void tipc_sk_proto_rcv(struct sock *sk, switch (msg_user(hdr)) { case CONN_MANAGER: - tipc_sk_conn_proto_rcv(tsk, skb, xmitq); + tipc_sk_conn_proto_rcv(tsk, skb, inputq, xmitq); return; case SOCK_WAKEUP: tipc_dest_del(&tsk->cong_links, msg_orignode(hdr), 0); From 4f7617705bfff84d756fe4401a1f4f032f374984 Mon Sep 17 00:00:00 2001 From: Giacinto Cifelli Date: Wed, 10 Oct 2018 20:05:53 +0200 Subject: [PATCH 1698/1762] qmi_wwan: Added support for Gemalto's Cinterion ALASxx WWAN interface MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Added support for Gemalto's Cinterion ALASxx WWAN interfaces by adding QMI_FIXED_INTF with Cinterion's VID and PID. Signed-off-by: Giacinto Cifelli Acked-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 533b6fb8d923..72a55b6b4211 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -1241,6 +1241,7 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x0b3c, 0xc00b, 4)}, /* Olivetti Olicard 500 */ {QMI_FIXED_INTF(0x1e2d, 0x0060, 4)}, /* Cinterion PLxx */ {QMI_FIXED_INTF(0x1e2d, 0x0053, 4)}, /* Cinterion PHxx,PXxx */ + {QMI_FIXED_INTF(0x1e2d, 0x0063, 10)}, /* Cinterion ALASxx (1 RmNet) */ {QMI_FIXED_INTF(0x1e2d, 0x0082, 4)}, /* Cinterion PHxx,PXxx (2 RmNet) */ {QMI_FIXED_INTF(0x1e2d, 0x0082, 5)}, /* Cinterion PHxx,PXxx (2 RmNet) */ {QMI_FIXED_INTF(0x1e2d, 0x0083, 4)}, /* Cinterion PHxx,PXxx (1 RmNet + USB Audio)*/ From 4cbbc91609846c09a8350080cd7e6f7764fb2ec1 Mon Sep 17 00:00:00 2001 From: Ryan Lee Date: Wed, 10 Oct 2018 23:26:06 +0000 Subject: [PATCH 1699/1762] ASoC: max98373: Sort Digital Volume in reverse order Signed-off-by: Ryan Lee Signed-off-by: Mark Brown --- sound/soc/codecs/max98373.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c index d6868c9a9ce6..9b7ccd351cae 100644 --- a/sound/soc/codecs/max98373.c +++ b/sound/soc/codecs/max98373.c @@ -455,7 +455,7 @@ SND_SOC_DAPM_SIGGEN("IMON"), SND_SOC_DAPM_SIGGEN("FBMON"), }; -static DECLARE_TLV_DB_SCALE(max98373_digital_tlv, 0, -50, 0); +static DECLARE_TLV_DB_SCALE(max98373_digital_tlv, -6350, 50, 1); static const DECLARE_TLV_DB_RANGE(max98373_spk_tlv, 0, 8, TLV_DB_SCALE_ITEM(0, 50, 0), 9, 10, TLV_DB_SCALE_ITEM(500, 100, 0), @@ -605,7 +605,7 @@ SOC_SINGLE("Dither Switch", MAX98373_R203F_AMP_DSP_CFG, SOC_SINGLE("DC Blocker Switch", MAX98373_R203F_AMP_DSP_CFG, MAX98373_AMP_DSP_CFG_DCBLK_SHIFT, 1, 0), SOC_SINGLE_TLV("Digital Volume", MAX98373_R203D_AMP_DIG_VOL_CTRL, - 0, 0x7F, 0, max98373_digital_tlv), + 0, 0x7F, 1, max98373_digital_tlv), SOC_SINGLE_TLV("Speaker Volume", MAX98373_R203E_AMP_PATH_GAIN, MAX98373_SPK_DIGI_GAIN_SHIFT, 10, 0, max98373_spk_tlv), SOC_SINGLE_TLV("FS Max Volume", MAX98373_R203E_AMP_PATH_GAIN, From 6c3beeca424a0c8d6c79184a880a8954bd498d57 Mon Sep 17 00:00:00 2001 From: Ryan Lee Date: Wed, 10 Oct 2018 23:26:10 +0000 Subject: [PATCH 1700/1762] ASoC: max98373: Sort BDE Limiter Thresh Volume in reverse order Signed-off-by: Ryan Lee Signed-off-by: Mark Brown --- sound/soc/codecs/max98373.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c index 9b7ccd351cae..38871677cbae 100644 --- a/sound/soc/codecs/max98373.c +++ b/sound/soc/codecs/max98373.c @@ -479,7 +479,7 @@ static const DECLARE_TLV_DB_RANGE(max98373_dht_rotation_point_tlv, 14, 15, TLV_DB_SCALE_ITEM(-2500, -500, 0), ); static const DECLARE_TLV_DB_RANGE(max98373_limiter_thresh_tlv, - 0, 15, TLV_DB_SCALE_ITEM(0, -100, 0), + 0, 15, TLV_DB_SCALE_ITEM(-1500, 100, 0), ); static const DECLARE_TLV_DB_RANGE(max98373_bde_gain_tlv, @@ -670,13 +670,13 @@ SOC_SINGLE_TLV("BDE LVL3 Clip Reduction Volume", MAX98373_R20B0_BDE_L3_CFG_3, SOC_SINGLE_TLV("BDE LVL4 Clip Reduction Volume", MAX98373_R20B3_BDE_L4_CFG_3, 0, 0x3C, 0, max98373_bde_gain_tlv), SOC_SINGLE_TLV("BDE LVL1 Limiter Thresh Volume", MAX98373_R20A8_BDE_L1_CFG_1, - 0, 0xF, 0, max98373_limiter_thresh_tlv), + 0, 0xF, 1, max98373_limiter_thresh_tlv), SOC_SINGLE_TLV("BDE LVL2 Limiter Thresh Volume", MAX98373_R20AB_BDE_L2_CFG_1, - 0, 0xF, 0, max98373_limiter_thresh_tlv), + 0, 0xF, 1, max98373_limiter_thresh_tlv), SOC_SINGLE_TLV("BDE LVL3 Limiter Thresh Volume", MAX98373_R20AE_BDE_L3_CFG_1, - 0, 0xF, 0, max98373_limiter_thresh_tlv), + 0, 0xF, 1, max98373_limiter_thresh_tlv), SOC_SINGLE_TLV("BDE LVL4 Limiter Thresh Volume", MAX98373_R20B1_BDE_L4_CFG_1, - 0, 0xF, 0, max98373_limiter_thresh_tlv), + 0, 0xF, 1, max98373_limiter_thresh_tlv), /* Limiter */ SOC_SINGLE("Limiter Switch", MAX98373_R20E2_LIMITER_EN, MAX98373_LIMITER_EN_SHIFT, 1, 0), From d34c8f37c75b739efc26383145a43497143ada88 Mon Sep 17 00:00:00 2001 From: Ryan Lee Date: Wed, 10 Oct 2018 23:26:13 +0000 Subject: [PATCH 1701/1762] ASoC: max98373: Sort max98373_bde_gain_tlv in reverse order Signed-off-by: Ryan Lee Signed-off-by: Mark Brown --- sound/soc/codecs/max98373.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c index 38871677cbae..37f8bcdd8e35 100644 --- a/sound/soc/codecs/max98373.c +++ b/sound/soc/codecs/max98373.c @@ -483,7 +483,7 @@ static const DECLARE_TLV_DB_RANGE(max98373_limiter_thresh_tlv, ); static const DECLARE_TLV_DB_RANGE(max98373_bde_gain_tlv, - 0, 60, TLV_DB_SCALE_ITEM(0, -25, 0), + 0, 60, TLV_DB_SCALE_ITEM(-1500, 25, 0), ); static bool max98373_readable_register(struct device *dev, unsigned int reg) @@ -654,21 +654,21 @@ SOC_SINGLE("BDE Hold Time", MAX98373_R2090_BDE_LVL_HOLD, 0, 0xFF, 0), SOC_SINGLE("BDE Attack Rate", MAX98373_R2091_BDE_GAIN_ATK_REL_RATE, 4, 0xF, 0), SOC_SINGLE("BDE Release Rate", MAX98373_R2091_BDE_GAIN_ATK_REL_RATE, 0, 0xF, 0), SOC_SINGLE_TLV("BDE LVL1 Clip Thresh Volume", MAX98373_R20A9_BDE_L1_CFG_2, - 0, 0x3C, 0, max98373_bde_gain_tlv), + 0, 0x3C, 1, max98373_bde_gain_tlv), SOC_SINGLE_TLV("BDE LVL2 Clip Thresh Volume", MAX98373_R20AC_BDE_L2_CFG_2, - 0, 0x3C, 0, max98373_bde_gain_tlv), + 0, 0x3C, 1, max98373_bde_gain_tlv), SOC_SINGLE_TLV("BDE LVL3 Clip Thresh Volume", MAX98373_R20AF_BDE_L3_CFG_2, - 0, 0x3C, 0, max98373_bde_gain_tlv), + 0, 0x3C, 1, max98373_bde_gain_tlv), SOC_SINGLE_TLV("BDE LVL4 Clip Thresh Volume", MAX98373_R20B2_BDE_L4_CFG_2, - 0, 0x3C, 0, max98373_bde_gain_tlv), + 0, 0x3C, 1, max98373_bde_gain_tlv), SOC_SINGLE_TLV("BDE LVL1 Clip Reduction Volume", MAX98373_R20AA_BDE_L1_CFG_3, - 0, 0x3C, 0, max98373_bde_gain_tlv), + 0, 0x3C, 1, max98373_bde_gain_tlv), SOC_SINGLE_TLV("BDE LVL2 Clip Reduction Volume", MAX98373_R20AD_BDE_L2_CFG_3, - 0, 0x3C, 0, max98373_bde_gain_tlv), + 0, 0x3C, 1, max98373_bde_gain_tlv), SOC_SINGLE_TLV("BDE LVL3 Clip Reduction Volume", MAX98373_R20B0_BDE_L3_CFG_3, - 0, 0x3C, 0, max98373_bde_gain_tlv), + 0, 0x3C, 1, max98373_bde_gain_tlv), SOC_SINGLE_TLV("BDE LVL4 Clip Reduction Volume", MAX98373_R20B3_BDE_L4_CFG_3, - 0, 0x3C, 0, max98373_bde_gain_tlv), + 0, 0x3C, 1, max98373_bde_gain_tlv), SOC_SINGLE_TLV("BDE LVL1 Limiter Thresh Volume", MAX98373_R20A8_BDE_L1_CFG_1, 0, 0xF, 1, max98373_limiter_thresh_tlv), SOC_SINGLE_TLV("BDE LVL2 Limiter Thresh Volume", MAX98373_R20AB_BDE_L2_CFG_1, From a23f5dc8448694a0ffe2127a04aa5787b9cf9e5f Mon Sep 17 00:00:00 2001 From: Ryan Lee Date: Wed, 10 Oct 2018 23:26:17 +0000 Subject: [PATCH 1702/1762] ASoC: max98373: Sort DHT Rot Pnt Volume in reverse order Signed-off-by: Ryan Lee Signed-off-by: Mark Brown --- sound/soc/codecs/max98373.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c index 37f8bcdd8e35..a09d01318f79 100644 --- a/sound/soc/codecs/max98373.c +++ b/sound/soc/codecs/max98373.c @@ -471,12 +471,12 @@ static const DECLARE_TLV_DB_RANGE(max98373_dht_spkgain_min_tlv, 0, 9, TLV_DB_SCALE_ITEM(800, 100, 0), ); static const DECLARE_TLV_DB_RANGE(max98373_dht_rotation_point_tlv, - 0, 1, TLV_DB_SCALE_ITEM(-50, -50, 0), - 2, 7, TLV_DB_SCALE_ITEM(-200, -100, 0), - 8, 9, TLV_DB_SCALE_ITEM(-1000, -200, 0), - 10, 11, TLV_DB_SCALE_ITEM(-1500, -300, 0), - 12, 13, TLV_DB_SCALE_ITEM(-2000, -200, 0), - 14, 15, TLV_DB_SCALE_ITEM(-2500, -500, 0), + 0, 1, TLV_DB_SCALE_ITEM(-3000, 500, 0), + 2, 4, TLV_DB_SCALE_ITEM(-2200, 200, 0), + 5, 6, TLV_DB_SCALE_ITEM(-1500, 300, 0), + 7, 9, TLV_DB_SCALE_ITEM(-1000, 200, 0), + 10, 13, TLV_DB_SCALE_ITEM(-500, 100, 0), + 14, 15, TLV_DB_SCALE_ITEM(-100, 50, 0), ); static const DECLARE_TLV_DB_RANGE(max98373_limiter_thresh_tlv, 0, 15, TLV_DB_SCALE_ITEM(-1500, 100, 0), @@ -617,7 +617,7 @@ SOC_SINGLE("DHT Switch", MAX98373_R20D4_DHT_EN, SOC_SINGLE_TLV("DHT Min Volume", MAX98373_R20D1_DHT_CFG, MAX98373_DHT_SPK_GAIN_MIN_SHIFT, 9, 0, max98373_dht_spkgain_min_tlv), SOC_SINGLE_TLV("DHT Rot Pnt Volume", MAX98373_R20D1_DHT_CFG, - MAX98373_DHT_ROT_PNT_SHIFT, 15, 0, max98373_dht_rotation_point_tlv), + MAX98373_DHT_ROT_PNT_SHIFT, 15, 1, max98373_dht_rotation_point_tlv), SOC_SINGLE_TLV("DHT Attack Step Volume", MAX98373_R20D2_DHT_ATTACK_CFG, MAX98373_DHT_ATTACK_STEP_SHIFT, 4, 0, max98373_dht_step_size_tlv), SOC_SINGLE_TLV("DHT Release Step Volume", MAX98373_R20D3_DHT_RELEASE_CFG, From 3c718e677c2b35b449992adc36ecce883c467e98 Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Thu, 11 Oct 2018 10:54:52 +0200 Subject: [PATCH 1703/1762] selftests: rtnetlink.sh explicitly requires bash. the script rtnetlink.sh requires a bash-only features (sleep with sub-second precision). This may cause random test failure if the default shell is not bash. Address the above explicitly requiring bash as the script interpreter. Fixes: 33b01b7b4f19 ("selftests: add rtnetlink test script") Signed-off-by: Paolo Abeni Signed-off-by: David S. Miller --- tools/testing/selftests/net/rtnetlink.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh index 08c341b49760..e101af52d1d6 100755 --- a/tools/testing/selftests/net/rtnetlink.sh +++ b/tools/testing/selftests/net/rtnetlink.sh @@ -1,4 +1,4 @@ -#!/bin/sh +#!/bin/bash # # This test is for checking rtnetlink callpaths, and get as much coverage as possible. # From 12a2ea962c06efb30764c47b140d2ec9d3cd7cb0 Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Thu, 11 Oct 2018 10:54:53 +0200 Subject: [PATCH 1704/1762] selftests: udpgso_bench.sh explicitly requires bash The udpgso_bench.sh script requires several bash-only features. This may cause random failures if the default shell is not bash. Address the above explicitly requiring bash as the script interpreter Fixes: 3a687bef148d ("selftests: udp gso benchmark") Signed-off-by: Paolo Abeni Acked-by: Willem de Bruijn Signed-off-by: David S. Miller --- tools/testing/selftests/net/udpgso_bench.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/udpgso_bench.sh b/tools/testing/selftests/net/udpgso_bench.sh index 850767befa47..99e537ab5ad9 100755 --- a/tools/testing/selftests/net/udpgso_bench.sh +++ b/tools/testing/selftests/net/udpgso_bench.sh @@ -1,4 +1,4 @@ -#!/bin/sh +#!/bin/bash # SPDX-License-Identifier: GPL-2.0 # # Run a series of udpgso benchmarks From a1f8dd34e64af689e95122921fb2ca83dedd4c4e Mon Sep 17 00:00:00 2001 From: Ying Xue Date: Thu, 11 Oct 2018 19:57:56 +0800 Subject: [PATCH 1705/1762] tipc: eliminate possible recursive locking detected by LOCKDEP When booting kernel with LOCKDEP option, below warning info was found: WARNING: possible recursive locking detected 4.19.0-rc7+ #14 Not tainted -------------------------------------------- swapper/0/1 is trying to acquire lock: 00000000dcfc0fc8 (&(&list->lock)->rlock#4){+...}, at: spin_lock_bh include/linux/spinlock.h:334 [inline] 00000000dcfc0fc8 (&(&list->lock)->rlock#4){+...}, at: tipc_link_reset+0x125/0xdf0 net/tipc/link.c:850 but task is already holding lock: 00000000cbb9b036 (&(&list->lock)->rlock#4){+...}, at: spin_lock_bh include/linux/spinlock.h:334 [inline] 00000000cbb9b036 (&(&list->lock)->rlock#4){+...}, at: tipc_link_reset+0xfa/0xdf0 net/tipc/link.c:849 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&(&list->lock)->rlock#4); lock(&(&list->lock)->rlock#4); *** DEADLOCK *** May be due to missing lock nesting notation 2 locks held by swapper/0/1: #0: 00000000f7539d34 (pernet_ops_rwsem){+.+.}, at: register_pernet_subsys+0x19/0x40 net/core/net_namespace.c:1051 #1: 00000000cbb9b036 (&(&list->lock)->rlock#4){+...}, at: spin_lock_bh include/linux/spinlock.h:334 [inline] #1: 00000000cbb9b036 (&(&list->lock)->rlock#4){+...}, at: tipc_link_reset+0xfa/0xdf0 net/tipc/link.c:849 stack backtrace: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.19.0-rc7+ #14 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1af/0x295 lib/dump_stack.c:113 print_deadlock_bug kernel/locking/lockdep.c:1759 [inline] check_deadlock kernel/locking/lockdep.c:1803 [inline] validate_chain kernel/locking/lockdep.c:2399 [inline] __lock_acquire+0xf1e/0x3c60 kernel/locking/lockdep.c:3411 lock_acquire+0x1db/0x520 kernel/locking/lockdep.c:3900 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:168 spin_lock_bh include/linux/spinlock.h:334 [inline] tipc_link_reset+0x125/0xdf0 net/tipc/link.c:850 tipc_link_bc_create+0xb5/0x1f0 net/tipc/link.c:526 tipc_bcast_init+0x59b/0xab0 net/tipc/bcast.c:521 tipc_init_net+0x472/0x610 net/tipc/core.c:82 ops_init+0xf7/0x520 net/core/net_namespace.c:129 __register_pernet_operations net/core/net_namespace.c:940 [inline] register_pernet_operations+0x453/0xac0 net/core/net_namespace.c:1011 register_pernet_subsys+0x28/0x40 net/core/net_namespace.c:1052 tipc_init+0x83/0x104 net/tipc/core.c:140 do_one_initcall+0x109/0x70a init/main.c:885 do_initcall_level init/main.c:953 [inline] do_initcalls init/main.c:961 [inline] do_basic_setup init/main.c:979 [inline] kernel_init_freeable+0x4bd/0x57f init/main.c:1144 kernel_init+0x13/0x180 init/main.c:1063 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 The reason why the noise above was complained by LOCKDEP is because we nested to hold l->wakeupq.lock and l->inputq->lock in tipc_link_reset function. In fact it's unnecessary to move skb buffer from l->wakeupq queue to l->inputq queue while holding the two locks at the same time. Instead, we can move skb buffers in l->wakeupq queue to a temporary list first and then move the buffers of the temporary list to l->inputq queue, which is also safe for us. Fixes: 3f32d0be6c16 ("tipc: lock wakeup & inputq at tipc_link_reset()") Reported-by: Dmitry Vyukov Signed-off-by: Ying Xue Acked-by: Jon Maloy Signed-off-by: David S. Miller --- net/tipc/link.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/net/tipc/link.c b/net/tipc/link.c index d229a36968da..f6552e4f4b43 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -845,15 +845,22 @@ static void link_prepare_wakeup(struct tipc_link *l) void tipc_link_reset(struct tipc_link *l) { + struct sk_buff_head list; + + __skb_queue_head_init(&list); + l->in_session = false; l->session++; l->mtu = l->advertised_mtu; + spin_lock_bh(&l->wakeupq.lock); - spin_lock_bh(&l->inputq->lock); - skb_queue_splice_init(&l->wakeupq, l->inputq); - spin_unlock_bh(&l->inputq->lock); + skb_queue_splice_init(&l->wakeupq, &list); spin_unlock_bh(&l->wakeupq.lock); + spin_lock_bh(&l->inputq->lock); + skb_queue_splice_init(&list, l->inputq); + spin_unlock_bh(&l->inputq->lock); + __skb_queue_purge(&l->transmq); __skb_queue_purge(&l->deferdq); __skb_queue_purge(&l->backlogq); From 26450608348e91a782691dbfcc836478f4381071 Mon Sep 17 00:00:00 2001 From: Moshe Shemesh Date: Thu, 11 Oct 2018 15:01:19 +0300 Subject: [PATCH 1706/1762] net/mlx4_core: Fix warnings during boot on driverinit param set failures During boot, mlx4_core sets the driverinit configuration parameters and updates the devlink module on the initial values calling devlink_param_driverinit_value_set(). If devlink_param_driverinit_value_set() returns an error mlx4_core reports kernel module warning. This caused false alarm during boot in case kernel was compiled with CONFIG_NET_DEVLINK off. Fix by removing warning reported in case devlink_param_driverinit_value_set() fails. This actually makes the function mlx4_devlink_set_init_value() redundant to using directly devlink_param_driverinit_value_set() and so removed. It fixes the following kernel trace: mlx4_core 0000:00:06.0: devlink set parameter 0 value failed (err = -95) mlx4_core 0000:00:06.0: devlink set parameter 1 value failed (err = -95) mlx4_core 0000:00:06.0: devlink set parameter 4 value failed (err = -95) mlx4_core 0000:00:06.0: devlink set parameter 5 value failed (err = -95) mlx4_core 0000:00:06.0: devlink set parameter 3 value failed (err = -95) Fixes: bd1b51dc66df ("mlx4: Add mlx4 initial parameters table and register it") Signed-off-by: Moshe Shemesh Signed-off-by: Tariq Toukan Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/main.c | 43 ++++++++--------------- 1 file changed, 15 insertions(+), 28 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index d2d59444f562..6a046030e873 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -260,47 +260,34 @@ static const struct devlink_param mlx4_devlink_params[] = { NULL, NULL, NULL), }; -static void mlx4_devlink_set_init_value(struct devlink *devlink, u32 param_id, - union devlink_param_value init_val) -{ - struct mlx4_priv *priv = devlink_priv(devlink); - struct mlx4_dev *dev = &priv->dev; - int err; - - err = devlink_param_driverinit_value_set(devlink, param_id, init_val); - if (err) - mlx4_warn(dev, - "devlink set parameter %u value failed (err = %d)", - param_id, err); -} - static void mlx4_devlink_set_params_init_values(struct devlink *devlink) { union devlink_param_value value; value.vbool = !!mlx4_internal_err_reset; - mlx4_devlink_set_init_value(devlink, - DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, - value); + devlink_param_driverinit_value_set(devlink, + DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, + value); value.vu32 = 1UL << log_num_mac; - mlx4_devlink_set_init_value(devlink, - DEVLINK_PARAM_GENERIC_ID_MAX_MACS, value); + devlink_param_driverinit_value_set(devlink, + DEVLINK_PARAM_GENERIC_ID_MAX_MACS, + value); value.vbool = enable_64b_cqe_eqe; - mlx4_devlink_set_init_value(devlink, - MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE, - value); + devlink_param_driverinit_value_set(devlink, + MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE, + value); value.vbool = enable_4k_uar; - mlx4_devlink_set_init_value(devlink, - MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR, - value); + devlink_param_driverinit_value_set(devlink, + MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR, + value); value.vbool = false; - mlx4_devlink_set_init_value(devlink, - DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, - value); + devlink_param_driverinit_value_set(devlink, + DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, + value); } static inline void mlx4_set_num_reserved_uars(struct mlx4_dev *dev, From 2a1e89df785082a0fd7264ca6d3d834abe84fa25 Mon Sep 17 00:00:00 2001 From: Ilias Apalodimas Date: Thu, 11 Oct 2018 15:28:26 +0300 Subject: [PATCH 1707/1762] net: socionext: clear rx irq correctly commit 63ae7949e94a ("net: socionext: Use descriptor info instead of MMIO reads on Rx") removed constant mmio reads from the driver and started using a descriptor field to check if packet should be processed. This lead the napi rx handler being constantly called while no packets needed processing and ksoftirq getting 100% cpu usage. Issue one mmio read to clear the irq correcty after processing packets Signed-off-by: Ilias Apalodimas Reported-by: Ard Biesheuvel Tested-by: Ard Biesheuvel Acked-by: Ard Biesheuvel Signed-off-by: David S. Miller --- drivers/net/ethernet/socionext/netsec.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/socionext/netsec.c b/drivers/net/ethernet/socionext/netsec.c index 7aa5ebb6766c..4289ccb26e4e 100644 --- a/drivers/net/ethernet/socionext/netsec.c +++ b/drivers/net/ethernet/socionext/netsec.c @@ -735,8 +735,11 @@ static int netsec_process_rx(struct netsec_priv *priv, int budget) u16 idx = dring->tail; struct netsec_de *de = dring->vaddr + (DESC_SZ * idx); - if (de->attr & (1U << NETSEC_RX_PKT_OWN_FIELD)) + if (de->attr & (1U << NETSEC_RX_PKT_OWN_FIELD)) { + /* reading the register clears the irq */ + netsec_read(priv, NETSEC_REG_NRM_RX_PKTCNT); break; + } /* This barrier is needed to keep us from reading * any other fields out of the netsec_de until we have From 511cfd580f23b0e0fcd5659931ef14c6e2c062b0 Mon Sep 17 00:00:00 2001 From: "Maciej S. Szmigiero" Date: Thu, 11 Oct 2018 16:02:10 +0200 Subject: [PATCH 1708/1762] r8169: set RX_MULTI_EN bit in RxConfig for 8168F-family chips It has been reported that since commit 05212ba8132b42 ("r8169: set RxConfig after tx/rx is enabled for RTL8169sb/8110sb devices") at least RTL_GIGA_MAC_VER_38 NICs work erratically after a resume from suspend. The problem has been traced to a missing RX_MULTI_EN bit in the RxConfig register. We already set this bit for RTL_GIGA_MAC_VER_35 NICs of the same 8168F chip family so let's do it also for its other siblings: RTL_GIGA_MAC_VER_36 and RTL_GIGA_MAC_VER_38. Curiously, the NIC seems to work fine after a system boot without having this bit set as long as the system isn't suspended and resumed. Fixes: 05212ba8132b42 ("r8169: set RxConfig after tx/rx is enabled for RTL8169sb/8110sb devices") Reported-by: Chris Clayton Signed-off-by: Maciej S. Szmigiero Reviewed-by: Heiner Kallweit Tested-by: Chris Clayton Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 9a5e2969df61..3a5e6160bf0d 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -4282,8 +4282,8 @@ static void rtl_init_rxcfg(struct rtl8169_private *tp) RTL_W32(tp, RxConfig, RX_FIFO_THRESH | RX_DMA_BURST); break; case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24: - case RTL_GIGA_MAC_VER_34: - case RTL_GIGA_MAC_VER_35: + case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_36: + case RTL_GIGA_MAC_VER_38: RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST); break; case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51: From 052858663db31bd1ead76744df5d39d8bb703c77 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Thu, 11 Oct 2018 17:06:21 +0200 Subject: [PATCH 1709/1762] net: phy: sfp: remove sfp_mutex's definition The sfp_mutex variable is defined but never used in this file. Not even in the commit that introduced that variable. Remove sfp_mutex, it has no purpose. Cc: Andrew Lunn Cc: Florian Fainelli Cc: "David S. Miller" Signed-off-by: Sebastian Andrzej Siewior Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/phy/sfp.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c index 6e13b8832bc7..fd8bb998ae52 100644 --- a/drivers/net/phy/sfp.c +++ b/drivers/net/phy/sfp.c @@ -163,8 +163,6 @@ static const enum gpiod_flags gpio_flags[] = { /* Give this long for the PHY to reset. */ #define T_PHY_RESET_MS 50 -static DEFINE_MUTEX(sfp_mutex); - struct sff_data { unsigned int gpios; bool (*module_supported)(const struct sfp_eeprom_id *id); From 5e65a20341e02df637d1c16cd487858d2c6a876a Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Thu, 11 Oct 2018 15:29:30 -0400 Subject: [PATCH 1710/1762] blk-wbt: wake up all when we scale up, not down Tetsuo brought to my attention that I screwed up the scale_up/scale_down helpers when I factored out the rq-qos code. We need to wake up all the waiters when we add slots for requests to make, not when we shrink the slots. Otherwise we'll end up things waiting forever. This was a mistake and simply puts everything back the way it was. cc: stable@vger.kernel.org Fixes: a79050434b45 ("blk-rq-qos: refactor out common elements of blk-wbt") eported-by: Tetsuo Handa Signed-off-by: Josef Bacik Signed-off-by: Jens Axboe --- block/blk-wbt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/blk-wbt.c b/block/blk-wbt.c index 8e20a0677dcf..8ac93fcbaa2e 100644 --- a/block/blk-wbt.c +++ b/block/blk-wbt.c @@ -310,6 +310,7 @@ static void scale_up(struct rq_wb *rwb) rq_depth_scale_up(&rwb->rq_depth); calc_wb_limits(rwb); rwb->unknown_cnt = 0; + rwb_wake_all(rwb); rwb_trace_step(rwb, "scale up"); } @@ -318,7 +319,6 @@ static void scale_down(struct rq_wb *rwb, bool hard_throttle) rq_depth_scale_down(&rwb->rq_depth, hard_throttle); calc_wb_limits(rwb); rwb->unknown_cnt = 0; - rwb_wake_all(rwb); rwb_trace_step(rwb, "scale down"); } From 34d1b82cd198379545ca634119e296fce06252aa Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Mon, 8 Oct 2018 07:55:20 -0700 Subject: [PATCH 1711/1762] i2c: Fix kerneldoc for renamed i2c dma put function This function was renamed in commit 82fe39a6bc7b ("i2c: refactor function to release a DMA safe buffer") but this kernel doc wasn't updated to point at the new function. Rename it. Fixes: 82fe39a6bc7b ("i2c: refactor function to release a DMA safe buffer") Signed-off-by: Stephen Boyd Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-core-base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index 9ee9a15e7134..9200e349f29e 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -2270,7 +2270,7 @@ EXPORT_SYMBOL(i2c_put_adapter); * * Return: NULL if a DMA safe buffer was not obtained. Use msg->buf with PIO. * Or a valid pointer to be used with DMA. After use, release it by - * calling i2c_release_dma_safe_msg_buf(). + * calling i2c_put_dma_safe_msg_buf(). * * This function must only be called from process context! */ From 8dcf86caa1e3daf4a6ccf38e97f4f752b411f829 Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Thu, 13 Sep 2018 12:59:59 +0200 Subject: [PATCH 1712/1762] vmlinux.lds.h: Fix incomplete .text.exit discards Enabling CONFIG_GCOV_PROFILE_ALL=y causes linker errors on ARM: `.text.exit' referenced in section `.ARM.exidx.text.exit': defined in discarded section `.text.exit' `.text.exit' referenced in section `.fini_array.00100': defined in discarded section `.text.exit' And related errors on NDS32: `.text.exit' referenced in section `.dtors.65435': defined in discarded section `.text.exit' The gcov compiler flags cause certain compiler versions to generate additional destructor-related sections that are not yet handled by the linker script, resulting in references between discarded and non-discarded sections. Since destructors are not used in the Linux kernel, fix this by discarding these additional sections. Reported-by: Arnd Bergmann Tested-by: Arnd Bergmann Acked-by: Arnd Bergmann Reported-by: Greentime Hu Tested-by: Masami Hiramatsu Signed-off-by: Peter Oberparleiter Signed-off-by: Stephen Rothwell --- arch/arm/kernel/vmlinux.lds.h | 2 ++ include/asm-generic/vmlinux.lds.h | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/arm/kernel/vmlinux.lds.h b/arch/arm/kernel/vmlinux.lds.h index ae5fdff18406..8247bc15addc 100644 --- a/arch/arm/kernel/vmlinux.lds.h +++ b/arch/arm/kernel/vmlinux.lds.h @@ -49,6 +49,8 @@ #define ARM_DISCARD \ *(.ARM.exidx.exit.text) \ *(.ARM.extab.exit.text) \ + *(.ARM.exidx.text.exit) \ + *(.ARM.extab.text.exit) \ ARM_CPU_DISCARD(*(.ARM.exidx.cpuexit.text)) \ ARM_CPU_DISCARD(*(.ARM.extab.cpuexit.text)) \ ARM_EXIT_DISCARD(EXIT_TEXT) \ diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 7b75ff6e2fce..b4d74b1c1e1d 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -613,8 +613,8 @@ #define EXIT_DATA \ *(.exit.data .exit.data.*) \ - *(.fini_array) \ - *(.dtors) \ + *(.fini_array .fini_array.*) \ + *(.dtors .dtors.*) \ MEM_DISCARD(exit.data*) \ MEM_DISCARD(exit.rodata*) From 52c8ee5bad8f33d02c567f6609f43d69303fc48d Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Thu, 13 Sep 2018 13:00:00 +0200 Subject: [PATCH 1713/1762] vmlinux.lds.h: Fix linker warnings about orphan .LPBX sections Enabling both CONFIG_LD_DEAD_CODE_DATA_ELIMINATION=y and CONFIG_GCOV_PROFILE_ALL=y results in linker warnings: warning: orphan section `.data..LPBX1' being placed in section `.data..LPBX1'. LD_DEAD_CODE_DATA_ELIMINATION adds compiler flag -fdata-sections. This option causes GCC to create separate data sections for data objects, including those generated by GCC internally for gcov profiling. The names of these objects start with a dot (.LPBX0, .LPBX1), resulting in section names starting with 'data..'. As section names starting with 'data..' are used for specific purposes in the Linux kernel, the linker script does not automatically include them in the output data section, resulting in the "orphan section" linker warnings. Fix this by specifically including sections named "data..LPBX*" in the data section. Reported-by: Stephen Rothwell Tested-by: Stephen Rothwell Tested-by: Arnd Bergmann Acked-by: Arnd Bergmann Signed-off-by: Peter Oberparleiter Signed-off-by: Stephen Rothwell --- include/asm-generic/vmlinux.lds.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index b4d74b1c1e1d..d7701d466b60 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -68,7 +68,7 @@ */ #ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION #define TEXT_MAIN .text .text.[0-9a-zA-Z_]* -#define DATA_MAIN .data .data.[0-9a-zA-Z_]* +#define DATA_MAIN .data .data.[0-9a-zA-Z_]* .data..LPBX* #define SDATA_MAIN .sdata .sdata.[0-9a-zA-Z_]* #define RODATA_MAIN .rodata .rodata.[0-9a-zA-Z_]* #define BSS_MAIN .bss .bss.[0-9a-zA-Z_]* From bf3b452b7af787b8bf27de6490dc4eedf6f97599 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Tue, 9 Oct 2018 16:48:57 -0700 Subject: [PATCH 1714/1762] net: dsa: bcm_sf2: Fix unbind ordering The order in which we release resources is unfortunately leading to bus errors while dismantling the port. This is because we set priv->wol_ports_mask to 0 to tell bcm_sf2_sw_suspend() that it is now permissible to clock gate the switch. Later on, when dsa_slave_destroy() comes in from dsa_unregister_switch() and calls dsa_switch_ops::port_disable, we perform the same dismantling again, and this time we hit registers that are clock gated. Make sure that dsa_unregister_switch() is the first thing that happens, which takes care of releasing all user visible resources, then proceed with clock gating hardware. We still need to set priv->wol_ports_mask to 0 to make sure that an enabled port properly gets disabled in case it was previously used as part of Wake-on-LAN. Fixes: d9338023fb8e ("net: dsa: bcm_sf2: Make it a real platform device driver") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/dsa/bcm_sf2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c index e0066adcd2f3..b6d8e849a949 100644 --- a/drivers/net/dsa/bcm_sf2.c +++ b/drivers/net/dsa/bcm_sf2.c @@ -1173,10 +1173,10 @@ static int bcm_sf2_sw_remove(struct platform_device *pdev) { struct bcm_sf2_priv *priv = platform_get_drvdata(pdev); - /* Disable all ports and interrupts */ priv->wol_ports_mask = 0; - bcm_sf2_sw_suspend(priv->dev->ds); dsa_unregister_switch(priv->dev->ds); + /* Disable all ports and interrupts */ + bcm_sf2_sw_suspend(priv->dev->ds); bcm_sf2_mdio_unregister(priv); return 0; From 54baca096386d862d19c10f58f34bf787c6b3cbe Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Tue, 9 Oct 2018 16:48:58 -0700 Subject: [PATCH 1715/1762] net: dsa: bcm_sf2: Call setup during switch resume There is no reason to open code what the switch setup function does, in fact, because we just issued a switch reset, we would make all the register get their default values, including for instance, having unused port be enabled again and wasting power and leading to an inappropriate switch core clock being selected. Fixes: 8cfa94984c9c ("net: dsa: bcm_sf2: add suspend/resume callbacks") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/dsa/bcm_sf2.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c index b6d8e849a949..fc8b48adf38b 100644 --- a/drivers/net/dsa/bcm_sf2.c +++ b/drivers/net/dsa/bcm_sf2.c @@ -703,7 +703,6 @@ static int bcm_sf2_sw_suspend(struct dsa_switch *ds) static int bcm_sf2_sw_resume(struct dsa_switch *ds) { struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds); - unsigned int port; int ret; ret = bcm_sf2_sw_rst(priv); @@ -715,14 +714,7 @@ static int bcm_sf2_sw_resume(struct dsa_switch *ds) if (priv->hw_params.num_gphy == 1) bcm_sf2_gphy_enable_set(ds, true); - for (port = 0; port < DSA_MAX_PORTS; port++) { - if (dsa_is_user_port(ds, port)) - bcm_sf2_port_setup(ds, port, NULL); - else if (dsa_is_cpu_port(ds, port)) - bcm_sf2_imp_setup(ds, port); - } - - bcm_sf2_enable_acb(ds); + ds->ops->setup(ds); return 0; } From f0fe77f601c3d6a821198f88f7adb0a05b8fe03e Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 11 Oct 2018 13:06:17 +0200 Subject: [PATCH 1716/1762] lib/bch: fix possible stack overrun The previous patch introduced very large kernel stack usage and a Makefile change to hide the warning about it. From what I can tell, a number of things went wrong here: - The BCH_MAX_T constant was set to the maximum value for 'n', not the maximum for 't', which is much smaller. - The stack usage is actually larger than the entire kernel stack on some architectures that can use 4KB stacks (m68k, sh, c6x), which leads to an immediate overrun. - The justification in the patch description claimed that nothing changed, however that is not the case even without the two points above: the configuration is machine specific, and most boards never use the maximum BCH_ECC_WORDS() length but instead have something much smaller. That maximum would only apply to machines that use both the maximum block size and the maximum ECC strength. The largest value for 't' that I could find is '32', which in turn leads to a 60 byte array instead of 2048 bytes. Making it '64' for future extension seems also worthwhile, with 120 bytes for the array. Anything larger won't fit into the OOB area on NAND flash. With that changed, the warning can be enabled again. Only linux-4.19+ contains the breakage, so this is only needed as a stable backport if it does not make it into the release. Fixes: 02361bc77888 ("lib/bch: Remove VLA usage") Reported-by: Ard Biesheuvel Cc: stable@vger.kernel.org Signed-off-by: Arnd Bergmann Signed-off-by: Boris Brezillon --- lib/Makefile | 1 - lib/bch.c | 17 +++++++++++++---- 2 files changed, 13 insertions(+), 5 deletions(-) diff --git a/lib/Makefile b/lib/Makefile index ca3f7ebb900d..423876446810 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -119,7 +119,6 @@ obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/ obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/ obj-$(CONFIG_REED_SOLOMON) += reed_solomon/ obj-$(CONFIG_BCH) += bch.o -CFLAGS_bch.o := $(call cc-option,-Wframe-larger-than=4500) obj-$(CONFIG_LZO_COMPRESS) += lzo/ obj-$(CONFIG_LZO_DECOMPRESS) += lzo/ obj-$(CONFIG_LZ4_COMPRESS) += lz4/ diff --git a/lib/bch.c b/lib/bch.c index 7b0f2006698b..5db6d3a4c8a6 100644 --- a/lib/bch.c +++ b/lib/bch.c @@ -79,20 +79,19 @@ #define GF_T(_p) (CONFIG_BCH_CONST_T) #define GF_N(_p) ((1 << (CONFIG_BCH_CONST_M))-1) #define BCH_MAX_M (CONFIG_BCH_CONST_M) +#define BCH_MAX_T (CONFIG_BCH_CONST_T) #else #define GF_M(_p) ((_p)->m) #define GF_T(_p) ((_p)->t) #define GF_N(_p) ((_p)->n) -#define BCH_MAX_M 15 +#define BCH_MAX_M 15 /* 2KB */ +#define BCH_MAX_T 64 /* 64 bit correction */ #endif -#define BCH_MAX_T (((1 << BCH_MAX_M) - 1) / BCH_MAX_M) - #define BCH_ECC_WORDS(_p) DIV_ROUND_UP(GF_M(_p)*GF_T(_p), 32) #define BCH_ECC_BYTES(_p) DIV_ROUND_UP(GF_M(_p)*GF_T(_p), 8) #define BCH_ECC_MAX_WORDS DIV_ROUND_UP(BCH_MAX_M * BCH_MAX_T, 32) -#define BCH_ECC_MAX_BYTES DIV_ROUND_UP(BCH_MAX_M * BCH_MAX_T, 8) #ifndef dbg #define dbg(_fmt, args...) do {} while (0) @@ -202,6 +201,9 @@ void encode_bch(struct bch_control *bch, const uint8_t *data, const uint32_t * const tab3 = tab2 + 256*(l+1); const uint32_t *pdata, *p0, *p1, *p2, *p3; + if (WARN_ON(r_bytes > sizeof(r))) + return; + if (ecc) { /* load ecc parity bytes into internal 32-bit buffer */ load_ecc8(bch, bch->ecc_buf, ecc); @@ -1285,6 +1287,13 @@ struct bch_control *init_bch(int m, int t, unsigned int prim_poly) */ goto fail; + if (t > BCH_MAX_T) + /* + * we can support larger than 64 bits if necessary, at the + * cost of higher stack usage. + */ + goto fail; + /* sanity checks */ if ((t < 1) || (m*t >= ((1 << m)-1))) /* invalid t value */ From 6b3944e42e2e554aa5a4be681ecd70dccd459114 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 11 Oct 2018 22:45:49 +0100 Subject: [PATCH 1717/1762] afs: Fix cell proc list Access to the list of cells by /proc/net/afs/cells has a couple of problems: (1) It should be checking against SEQ_START_TOKEN for the keying the header line. (2) It's only holding the RCU read lock, so it can't just walk over the list without following the proper RCU methods. Fix these by using an hlist instead of an ordinary list and using the appropriate accessor functions to follow it with RCU. Since the code that adds a cell to the list must also necessarily change, sort the list on insertion whilst we're at it. Fixes: 989782dcdc91 ("afs: Overhaul cell database management") Signed-off-by: David Howells Signed-off-by: Greg Kroah-Hartman --- fs/afs/cell.c | 17 +++++++++++++++-- fs/afs/dynroot.c | 2 +- fs/afs/internal.h | 4 ++-- fs/afs/main.c | 2 +- fs/afs/proc.c | 7 +++---- 5 files changed, 22 insertions(+), 10 deletions(-) diff --git a/fs/afs/cell.c b/fs/afs/cell.c index f3d0bef16d78..6127f0fcd62c 100644 --- a/fs/afs/cell.c +++ b/fs/afs/cell.c @@ -514,6 +514,8 @@ static int afs_alloc_anon_key(struct afs_cell *cell) */ static int afs_activate_cell(struct afs_net *net, struct afs_cell *cell) { + struct hlist_node **p; + struct afs_cell *pcell; int ret; if (!cell->anonymous_key) { @@ -534,7 +536,18 @@ static int afs_activate_cell(struct afs_net *net, struct afs_cell *cell) return ret; mutex_lock(&net->proc_cells_lock); - list_add_tail(&cell->proc_link, &net->proc_cells); + for (p = &net->proc_cells.first; *p; p = &(*p)->next) { + pcell = hlist_entry(*p, struct afs_cell, proc_link); + if (strcmp(cell->name, pcell->name) < 0) + break; + } + + cell->proc_link.pprev = p; + cell->proc_link.next = *p; + rcu_assign_pointer(*p, &cell->proc_link.next); + if (cell->proc_link.next) + cell->proc_link.next->pprev = &cell->proc_link.next; + afs_dynroot_mkdir(net, cell); mutex_unlock(&net->proc_cells_lock); return 0; @@ -550,7 +563,7 @@ static void afs_deactivate_cell(struct afs_net *net, struct afs_cell *cell) afs_proc_cell_remove(cell); mutex_lock(&net->proc_cells_lock); - list_del_init(&cell->proc_link); + hlist_del_rcu(&cell->proc_link); afs_dynroot_rmdir(net, cell); mutex_unlock(&net->proc_cells_lock); diff --git a/fs/afs/dynroot.c b/fs/afs/dynroot.c index 1cde710a8013..f29c6dade7f6 100644 --- a/fs/afs/dynroot.c +++ b/fs/afs/dynroot.c @@ -265,7 +265,7 @@ int afs_dynroot_populate(struct super_block *sb) return -ERESTARTSYS; net->dynroot_sb = sb; - list_for_each_entry(cell, &net->proc_cells, proc_link) { + hlist_for_each_entry(cell, &net->proc_cells, proc_link) { ret = afs_dynroot_mkdir(net, cell); if (ret < 0) goto error; diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 871a228d7f37..34c02fdcc25f 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -242,7 +242,7 @@ struct afs_net { seqlock_t cells_lock; struct mutex proc_cells_lock; - struct list_head proc_cells; + struct hlist_head proc_cells; /* Known servers. Theoretically each fileserver can only be in one * cell, but in practice, people create aliases and subsets and there's @@ -320,7 +320,7 @@ struct afs_cell { struct afs_net *net; struct key *anonymous_key; /* anonymous user key for this cell */ struct work_struct manager; /* Manager for init/deinit/dns */ - struct list_head proc_link; /* /proc cell list link */ + struct hlist_node proc_link; /* /proc cell list link */ #ifdef CONFIG_AFS_FSCACHE struct fscache_cookie *cache; /* caching cookie */ #endif diff --git a/fs/afs/main.c b/fs/afs/main.c index e84fe822a960..107427688edd 100644 --- a/fs/afs/main.c +++ b/fs/afs/main.c @@ -87,7 +87,7 @@ static int __net_init afs_net_init(struct net *net_ns) timer_setup(&net->cells_timer, afs_cells_timer, 0); mutex_init(&net->proc_cells_lock); - INIT_LIST_HEAD(&net->proc_cells); + INIT_HLIST_HEAD(&net->proc_cells); seqlock_init(&net->fs_lock); net->fs_servers = RB_ROOT; diff --git a/fs/afs/proc.c b/fs/afs/proc.c index 476dcbb79713..9101f62707af 100644 --- a/fs/afs/proc.c +++ b/fs/afs/proc.c @@ -33,9 +33,8 @@ static inline struct afs_net *afs_seq2net_single(struct seq_file *m) static int afs_proc_cells_show(struct seq_file *m, void *v) { struct afs_cell *cell = list_entry(v, struct afs_cell, proc_link); - struct afs_net *net = afs_seq2net(m); - if (v == &net->proc_cells) { + if (v == SEQ_START_TOKEN) { /* display header on line 1 */ seq_puts(m, "USE NAME\n"); return 0; @@ -50,12 +49,12 @@ static void *afs_proc_cells_start(struct seq_file *m, loff_t *_pos) __acquires(rcu) { rcu_read_lock(); - return seq_list_start_head(&afs_seq2net(m)->proc_cells, *_pos); + return seq_hlist_start_head_rcu(&afs_seq2net(m)->proc_cells, *_pos); } static void *afs_proc_cells_next(struct seq_file *m, void *v, loff_t *pos) { - return seq_list_next(v, &afs_seq2net(m)->proc_cells, pos); + return seq_hlist_next_rcu(v, &afs_seq2net(m)->proc_cells, pos); } static void afs_proc_cells_stop(struct seq_file *m, void *v) From d91680e687f47984ffd3200c8e5d587903e7bd11 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 11 Oct 2018 11:29:14 +0100 Subject: [PATCH 1718/1762] arm64: Fix /proc/iomem for reserved but not memory regions We describe ranges of 'reserved' memory to userspace via /proc/iomem. Commit 50d7ba36b916 ("arm64: export memblock_reserve()d regions via /proc/iomem") updated the logic to export regions that were reserved because their contents should be preserved. This allowed kexec-tools to tell the difference between 'reserved' memory that must be preserved and not overwritten, (e.g. the ACPI tables), and 'nomap' memory that must not be touched without knowing the memory-attributes (e.g. RAS CPER regions). The above commit wrongly assumed that memblock_reserve() would not be used to reserve regions that aren't memory. It turns out this is exactly what early_init_dt_reserve_memory_arch() will do if it finds a DT reserved-memory that was also carved out of the memory node, which results in a WARN_ON_ONCE() and the region being reserved instead of ignored. The ramoops description on hikey and dragonboard-410c both do this, so we can't simply write this configuration off as "buggy firmware". Avoid this issue by rewriting reserve_memblock_reserved_regions() so that only the portions of reserved regions which overlap with mapped memory are actually reserved. Fixes: 50d7ba36b916 ("arm64: export memblock_reserve()d regions via /proc/iomem") Reported-by: John Stultz Reported-by: Paolo Pisati CC: Akashi Takahiro CC: Ard Biesheuvel Reviewed-by: James Morse Signed-off-by: Will Deacon --- arch/arm64/kernel/setup.c | 52 +++++++++++++++++++-------------------- 1 file changed, 25 insertions(+), 27 deletions(-) diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 5b4fac434c84..b3354ff94e79 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -64,6 +64,9 @@ #include #include +static int num_standard_resources; +static struct resource *standard_resources; + phys_addr_t __fdt_pointer __initdata; /* @@ -206,14 +209,19 @@ static void __init request_standard_resources(void) { struct memblock_region *region; struct resource *res; + unsigned long i = 0; kernel_code.start = __pa_symbol(_text); kernel_code.end = __pa_symbol(__init_begin - 1); kernel_data.start = __pa_symbol(_sdata); kernel_data.end = __pa_symbol(_end - 1); + num_standard_resources = memblock.memory.cnt; + standard_resources = alloc_bootmem_low(num_standard_resources * + sizeof(*standard_resources)); + for_each_memblock(memory, region) { - res = alloc_bootmem_low(sizeof(*res)); + res = &standard_resources[i++]; if (memblock_is_nomap(region)) { res->name = "reserved"; res->flags = IORESOURCE_MEM; @@ -243,36 +251,26 @@ static void __init request_standard_resources(void) static int __init reserve_memblock_reserved_regions(void) { - phys_addr_t start, end, roundup_end = 0; - struct resource *mem, *res; - u64 i; + u64 i, j; - for_each_reserved_mem_region(i, &start, &end) { - if (end <= roundup_end) - continue; /* done already */ + for (i = 0; i < num_standard_resources; ++i) { + struct resource *mem = &standard_resources[i]; + phys_addr_t r_start, r_end, mem_size = resource_size(mem); - start = __pfn_to_phys(PFN_DOWN(start)); - end = __pfn_to_phys(PFN_UP(end)) - 1; - roundup_end = end; - - res = kzalloc(sizeof(*res), GFP_ATOMIC); - if (WARN_ON(!res)) - return -ENOMEM; - res->start = start; - res->end = end; - res->name = "reserved"; - res->flags = IORESOURCE_MEM; - - mem = request_resource_conflict(&iomem_resource, res); - /* - * We expected memblock_reserve() regions to conflict with - * memory created by request_standard_resources(). - */ - if (WARN_ON_ONCE(!mem)) + if (!memblock_is_region_reserved(mem->start, mem_size)) continue; - kfree(res); - reserve_region_with_split(mem, start, end, "reserved"); + for_each_reserved_mem_region(j, &r_start, &r_end) { + resource_size_t start, end; + + start = max(PFN_PHYS(PFN_DOWN(r_start)), mem->start); + end = min(PFN_PHYS(PFN_UP(r_end)) - 1, mem->end); + + if (start > mem->end || end < mem->start) + continue; + + reserve_region_with_split(mem, start, end, "reserved"); + } } return 0; From ca2b497253ad01c80061a1f3ee9eb91b5d54a849 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 5 Oct 2018 13:24:36 +0100 Subject: [PATCH 1719/1762] arm64: perf: Reject stand-alone CHAIN events for PMUv3 It doesn't make sense for a perf event to be configured as a CHAIN event in isolation, so extend the arm_pmu structure with a ->filter_match() function to allow the backend PMU implementation to reject CHAIN events early. Cc: Reviewed-by: Suzuki K Poulose Signed-off-by: Will Deacon --- arch/arm64/kernel/perf_event.c | 7 +++++++ drivers/perf/arm_pmu.c | 8 +++++++- include/linux/perf/arm_pmu.h | 1 + 3 files changed, 15 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index 8e38d5267f22..e213f8e867f6 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -966,6 +966,12 @@ static int armv8pmu_set_event_filter(struct hw_perf_event *event, return 0; } +static int armv8pmu_filter_match(struct perf_event *event) +{ + unsigned long evtype = event->hw.config_base & ARMV8_PMU_EVTYPE_EVENT; + return evtype != ARMV8_PMUV3_PERFCTR_CHAIN; +} + static void armv8pmu_reset(void *info) { struct arm_pmu *cpu_pmu = (struct arm_pmu *)info; @@ -1114,6 +1120,7 @@ static int armv8_pmu_init(struct arm_pmu *cpu_pmu) cpu_pmu->stop = armv8pmu_stop, cpu_pmu->reset = armv8pmu_reset, cpu_pmu->set_event_filter = armv8pmu_set_event_filter; + cpu_pmu->filter_match = armv8pmu_filter_match; return 0; } diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c index 7f01f6f60b87..d0b7dd8fb184 100644 --- a/drivers/perf/arm_pmu.c +++ b/drivers/perf/arm_pmu.c @@ -485,7 +485,13 @@ static int armpmu_filter_match(struct perf_event *event) { struct arm_pmu *armpmu = to_arm_pmu(event->pmu); unsigned int cpu = smp_processor_id(); - return cpumask_test_cpu(cpu, &armpmu->supported_cpus); + int ret; + + ret = cpumask_test_cpu(cpu, &armpmu->supported_cpus); + if (ret && armpmu->filter_match) + return armpmu->filter_match(event); + + return ret; } static ssize_t armpmu_cpumask_show(struct device *dev, diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h index 10f92e1d8e7b..bf309ff6f244 100644 --- a/include/linux/perf/arm_pmu.h +++ b/include/linux/perf/arm_pmu.h @@ -99,6 +99,7 @@ struct arm_pmu { void (*stop)(struct arm_pmu *); void (*reset)(void *); int (*map_event)(struct perf_event *event); + int (*filter_match)(struct perf_event *event); int num_events; bool secure_access; /* 32-bit ARM only */ #define ARMV8_PMUV3_MAX_COMMON_EVENTS 0x40 From fee5150c484c75c473dc1e2d07cb6151384ef85f Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher Date: Wed, 10 Oct 2018 21:18:18 +0100 Subject: [PATCH 1720/1762] gfs2: Fix iomap buffered write support for journaled files (2) It turns out that the fix in commit 6636c3cc56 is bad; the assertion that the iomap code no longer creates buffer heads is incorrect for filesystems that set the IOMAP_F_BUFFER_HEAD flag. Instead, what's happening is that gfs2_iomap_begin_write treats all files that have the jdata flag set as journaled files, which is incorrect as long as those files are inline ("stuffed"). We're handling stuffed files directly via the page cache, which is why we ended up with pages without buffer heads in gfs2_page_add_databufs. Fix this by handling stuffed journaled files correctly in gfs2_iomap_begin_write. This reverts commit 6636c3cc5690c11631e6366cf9a28fb99c8b25bb. Signed-off-by: Andreas Gruenbacher --- fs/gfs2/bmap.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index 3c159a7f9a9e..84544a4f012d 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -975,10 +975,6 @@ static void gfs2_iomap_journaled_page_done(struct inode *inode, loff_t pos, { struct gfs2_inode *ip = GFS2_I(inode); - if (!page_has_buffers(page)) { - create_empty_buffers(page, inode->i_sb->s_blocksize, - (1 << BH_Dirty)|(1 << BH_Uptodate)); - } gfs2_page_add_databufs(ip, page, offset_in_page(pos), copied); } @@ -1061,7 +1057,7 @@ static int gfs2_iomap_begin_write(struct inode *inode, loff_t pos, } } release_metapath(&mp); - if (gfs2_is_jdata(ip)) + if (!gfs2_is_stuffed(ip) && gfs2_is_jdata(ip)) iomap->page_done = gfs2_iomap_journaled_page_done; return 0; From 38a12607a82f3cba4149d36cc54695bd33f5ce04 Mon Sep 17 00:00:00 2001 From: Peter Rosin Date: Fri, 12 Oct 2018 14:46:40 +0000 Subject: [PATCH 1721/1762] mux: adgs1408: use the correct MODULE_LICENSE The file is GPL v2 or later. Acked-by: Mircea Caprioru Signed-off-by: Peter Rosin Signed-off-by: Greg Kroah-Hartman --- drivers/mux/adgs1408.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mux/adgs1408.c b/drivers/mux/adgs1408.c index 0f7cf54e3234..89096f10f4c4 100644 --- a/drivers/mux/adgs1408.c +++ b/drivers/mux/adgs1408.c @@ -128,4 +128,4 @@ module_spi_driver(adgs1408_driver); MODULE_AUTHOR("Mircea Caprioru "); MODULE_DESCRIPTION("Analog Devices ADGS1408 MUX driver"); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); From b40afc0066405e5ecfce73949b56ddd6bb65bd10 Mon Sep 17 00:00:00 2001 From: Peter Rosin Date: Fri, 12 Oct 2018 14:46:46 +0000 Subject: [PATCH 1722/1762] MAINTAINERS: use the correct location for dt-bindings includes for mux Just drop the "linux" part of the path, it was never correct. Reported-by: Joe Perches Fixes: 256ac0375098 ("dt-bindings: document devicetree bindings for mux-controllers and gpio-mux") Signed-off-by: Peter Rosin Signed-off-by: Greg Kroah-Hartman --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 40082e45b3da..6ac000cc006d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9865,7 +9865,7 @@ M: Peter Rosin S: Maintained F: Documentation/ABI/testing/sysfs-class-mux* F: Documentation/devicetree/bindings/mux/ -F: include/linux/dt-bindings/mux/ +F: include/dt-bindings/mux/ F: include/linux/mux/ F: drivers/mux/ From f014ffb025c159fd51d19af8af0022a991aaa4f8 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Oct 2018 14:00:57 +0100 Subject: [PATCH 1723/1762] afs: Fix afs_server struct leak Fix a leak of afs_server structs. The routine that installs them in the various lookup lists and trees gets a ref on leaving the function, whether it added the server or a server already exists. It shouldn't increment the refcount if it added the server. The effect of this that "rmmod kafs" will hang waiting for the leaked server to become unused. Fixes: d2ddc776a458 ("afs: Overhaul volume and server record caching and fileserver rotation") Signed-off-by: David Howells Signed-off-by: Greg Kroah-Hartman --- fs/afs/server.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/afs/server.c b/fs/afs/server.c index 1d329e6981d5..2f306c0cc4ee 100644 --- a/fs/afs/server.c +++ b/fs/afs/server.c @@ -199,9 +199,11 @@ static struct afs_server *afs_install_server(struct afs_net *net, write_sequnlock(&net->fs_addr_lock); ret = 0; + goto out; exists: afs_get_server(server); +out: write_sequnlock(&net->fs_lock); return server; } From 747df19747bc9752cd40b9cce761e17a033aa5c2 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Thu, 11 Oct 2018 20:32:05 +0200 Subject: [PATCH 1724/1762] ASoC: sta32x: set ->component pointer in private struct The ESD watchdog code in sta32x_watchdog() dereferences the pointer which is never assigned. This is a regression from a1be4cead9b950 ("ASoC: sta32x: Convert to direct regmap API usage.") which went unnoticed since nobody seems to use that ESD workaround. Fixes: a1be4cead9b950 ("ASoC: sta32x: Convert to direct regmap API usage.") Signed-off-by: Daniel Mack Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- sound/soc/codecs/sta32x.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c index d5035f2f2b2b..ce508b4cc85c 100644 --- a/sound/soc/codecs/sta32x.c +++ b/sound/soc/codecs/sta32x.c @@ -879,6 +879,9 @@ static int sta32x_probe(struct snd_soc_component *component) struct sta32x_priv *sta32x = snd_soc_component_get_drvdata(component); struct sta32x_platform_data *pdata = sta32x->pdata; int i, ret = 0, thermal = 0; + + sta32x->component = component; + ret = regulator_bulk_enable(ARRAY_SIZE(sta32x->supplies), sta32x->supplies); if (ret != 0) { From 3809688980205622f75ed5d5890759430da4e7e4 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 12 Oct 2018 06:31:00 +0000 Subject: [PATCH 1725/1762] ASoC: pcm3168a: add HW constraint for non RIGHT_J RIGHT_J only can handle 16bit data bits. Current driver just errored if user requests non RIGHT_J + 16bit combination. But it is not useful for user. This patch adds HW constraint for it, and avoid error on such situation. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/codecs/pcm3168a.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/sound/soc/codecs/pcm3168a.c b/sound/soc/codecs/pcm3168a.c index 3356c91f55b0..233a8df5d7a5 100644 --- a/sound/soc/codecs/pcm3168a.c +++ b/sound/soc/codecs/pcm3168a.c @@ -476,7 +476,43 @@ static int pcm3168a_hw_params(struct snd_pcm_substream *substream, return 0; } +static int pcm3168a_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct pcm3168a_priv *pcm3168a = snd_soc_component_get_drvdata(component); + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + unsigned int fmt; + unsigned int sample_min; + + if (tx) + fmt = pcm3168a->dac_fmt; + else + fmt = pcm3168a->adc_fmt; + + /* + * Available Data Bits + * + * RIGHT_J : 24 / 16 + * LEFT_J : 24 + * I2S : 24 + */ + switch (fmt) { + case PCM3168A_FMT_RIGHT_J: + sample_min = 16; + break; + default: + sample_min = 24; + } + + snd_pcm_hw_constraint_minmax(substream->runtime, + SNDRV_PCM_HW_PARAM_SAMPLE_BITS, + sample_min, 32); + + return 0; +} static const struct snd_soc_dai_ops pcm3168a_dac_dai_ops = { + .startup = pcm3168a_startup, .set_fmt = pcm3168a_set_dai_fmt_dac, .set_sysclk = pcm3168a_set_dai_sysclk, .hw_params = pcm3168a_hw_params, From 594680ea4a394f19d38a39a7d7c673fbad02a3d6 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 12 Oct 2018 06:31:18 +0000 Subject: [PATCH 1726/1762] ASoC: pcm3168a: add hw constraint for channel LEFT_J / I2S only can use TDM. This patch adds channel constraint for it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/codecs/pcm3168a.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/sound/soc/codecs/pcm3168a.c b/sound/soc/codecs/pcm3168a.c index 233a8df5d7a5..f0e2b886323e 100644 --- a/sound/soc/codecs/pcm3168a.c +++ b/sound/soc/codecs/pcm3168a.c @@ -484,6 +484,7 @@ static int pcm3168a_startup(struct snd_pcm_substream *substream, bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; unsigned int fmt; unsigned int sample_min; + unsigned int channel_max; if (tx) fmt = pcm3168a->dac_fmt; @@ -496,19 +497,38 @@ static int pcm3168a_startup(struct snd_pcm_substream *substream, * RIGHT_J : 24 / 16 * LEFT_J : 24 * I2S : 24 + * + * TDM available + * + * I2S + * LEFT_J */ switch (fmt) { case PCM3168A_FMT_RIGHT_J: sample_min = 16; + channel_max = 2; + break; + case PCM3168A_FMT_LEFT_J: + sample_min = 24; + channel_max = 8; + break; + case PCM3168A_FMT_I2S: + sample_min = 24; + channel_max = 8; break; default: sample_min = 24; + channel_max = 2; } snd_pcm_hw_constraint_minmax(substream->runtime, SNDRV_PCM_HW_PARAM_SAMPLE_BITS, sample_min, 32); + snd_pcm_hw_constraint_minmax(substream->runtime, + SNDRV_PCM_HW_PARAM_CHANNELS, + 2, channel_max); + return 0; } static const struct snd_soc_dai_ops pcm3168a_dac_dai_ops = { From 471a7ba89158c6d52dae69636c94c4aa1a6b7b22 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 12 Oct 2018 06:31:49 +0000 Subject: [PATCH 1727/1762] ASoC: pcm3168a: add I2S/Left_J TDM support pcm3168a is supporting TDM on I2S/Left_J, but there is no settings for it. This patch add it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/codecs/pcm3168a.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/sound/soc/codecs/pcm3168a.c b/sound/soc/codecs/pcm3168a.c index f0e2b886323e..63aa02592bc0 100644 --- a/sound/soc/codecs/pcm3168a.c +++ b/sound/soc/codecs/pcm3168a.c @@ -33,6 +33,8 @@ #define PCM3168A_FMT_RIGHT_J_16 0x3 #define PCM3168A_FMT_DSP_A 0x4 #define PCM3168A_FMT_DSP_B 0x5 +#define PCM3168A_FMT_I2S_TDM 0x6 +#define PCM3168A_FMT_LEFT_J_TDM 0x7 #define PCM3168A_FMT_DSP_MASK 0x4 #define PCM3168A_NUM_SUPPLIES 6 @@ -401,9 +403,11 @@ static int pcm3168a_hw_params(struct snd_pcm_substream *substream, bool tx, master_mode; u32 val, mask, shift, reg; unsigned int rate, fmt, ratio, max_ratio; + unsigned int chan; int i, min_frame_size; rate = params_rate(params); + chan = params_channels(params); ratio = pcm3168a->sysclk / rate; @@ -456,6 +460,21 @@ static int pcm3168a_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } + /* for TDM */ + if (chan > 2) { + switch (fmt) { + case PCM3168A_FMT_I2S: + fmt = PCM3168A_FMT_I2S_TDM; + break; + case PCM3168A_FMT_LEFT_J: + fmt = PCM3168A_FMT_LEFT_J_TDM; + break; + default: + dev_err(component->dev, "TDM is supported under I2S/Left_J only\n"); + return -EINVAL; + } + } + if (master_mode) val = ((i + 1) << shift); else From 1cff514a5101d514900f0e94613402d8a18359e6 Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Fri, 12 Oct 2018 21:34:26 -0700 Subject: [PATCH 1728/1762] ocfs2: fix a GCC warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix the following compile warning: fs/ocfs2/dlmglue.c:99:30: warning: ‘lockdep_keys’ defined but not used [-Wunused-variable] static struct lock_class_key lockdep_keys[OCFS2_NUM_LOCK_TYPES]; Link: http://lkml.kernel.org/r/1536938148-32110-1-git-send-email-zhongjiang@huawei.com Signed-off-by: zhong jiang Reviewed-by: Andrew Morton Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- fs/ocfs2/dlmglue.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 8e712b614e6e..933aac5da193 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -96,7 +96,9 @@ struct ocfs2_unblock_ctl { }; /* Lockdep class keys */ +#ifdef CONFIG_DEBUG_LOCK_ALLOC static struct lock_class_key lockdep_keys[OCFS2_NUM_LOCK_TYPES]; +#endif static int ocfs2_check_meta_downconvert(struct ocfs2_lock_res *lockres, int new_level); From 7aa867dd89526e9cfd9714d8b9b587c016eaea34 Mon Sep 17 00:00:00 2001 From: Jann Horn Date: Fri, 12 Oct 2018 21:34:32 -0700 Subject: [PATCH 1729/1762] mm/mmap.c: don't clobber partially overlapping VMA with MAP_FIXED_NOREPLACE Daniel Micay reports that attempting to use MAP_FIXED_NOREPLACE in an application causes that application to randomly crash. The existing check for handling MAP_FIXED_NOREPLACE looks up the first VMA that either overlaps or follows the requested region, and then bails out if that VMA overlaps *the start* of the requested region. It does not bail out if the VMA only overlaps another part of the requested region. Fix it by checking that the found VMA only starts at or after the end of the requested region, in which case there is no overlap. Test case: user@debian:~$ cat mmap_fixed_simple.c #include #include #include #include #include #ifndef MAP_FIXED_NOREPLACE #define MAP_FIXED_NOREPLACE 0x100000 #endif int main(void) { char *p; errno = 0; p = mmap((void*)0x10001000, 0x4000, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED_NOREPLACE, -1, 0); printf("p1=%p err=%m\n", p); errno = 0; p = mmap((void*)0x10000000, 0x2000, PROT_READ, MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED_NOREPLACE, -1, 0); printf("p2=%p err=%m\n", p); char cmd[100]; sprintf(cmd, "cat /proc/%d/maps", getpid()); system(cmd); return 0; } user@debian:~$ gcc -o mmap_fixed_simple mmap_fixed_simple.c user@debian:~$ ./mmap_fixed_simple p1=0x10001000 err=Success p2=0x10000000 err=Success 10000000-10002000 r--p 00000000 00:00 0 10002000-10005000 ---p 00000000 00:00 0 564a9a06f000-564a9a070000 r-xp 00000000 fe:01 264004 /home/user/mmap_fixed_simple 564a9a26f000-564a9a270000 r--p 00000000 fe:01 264004 /home/user/mmap_fixed_simple 564a9a270000-564a9a271000 rw-p 00001000 fe:01 264004 /home/user/mmap_fixed_simple 564a9a54a000-564a9a56b000 rw-p 00000000 00:00 0 [heap] 7f8eba447000-7f8eba5dc000 r-xp 00000000 fe:01 405885 /lib/x86_64-linux-gnu/libc-2.24.so 7f8eba5dc000-7f8eba7dc000 ---p 00195000 fe:01 405885 /lib/x86_64-linux-gnu/libc-2.24.so 7f8eba7dc000-7f8eba7e0000 r--p 00195000 fe:01 405885 /lib/x86_64-linux-gnu/libc-2.24.so 7f8eba7e0000-7f8eba7e2000 rw-p 00199000 fe:01 405885 /lib/x86_64-linux-gnu/libc-2.24.so 7f8eba7e2000-7f8eba7e6000 rw-p 00000000 00:00 0 7f8eba7e6000-7f8eba809000 r-xp 00000000 fe:01 405876 /lib/x86_64-linux-gnu/ld-2.24.so 7f8eba9e9000-7f8eba9eb000 rw-p 00000000 00:00 0 7f8ebaa06000-7f8ebaa09000 rw-p 00000000 00:00 0 7f8ebaa09000-7f8ebaa0a000 r--p 00023000 fe:01 405876 /lib/x86_64-linux-gnu/ld-2.24.so 7f8ebaa0a000-7f8ebaa0b000 rw-p 00024000 fe:01 405876 /lib/x86_64-linux-gnu/ld-2.24.so 7f8ebaa0b000-7f8ebaa0c000 rw-p 00000000 00:00 0 7ffcc99fa000-7ffcc9a1b000 rw-p 00000000 00:00 0 [stack] 7ffcc9b44000-7ffcc9b47000 r--p 00000000 00:00 0 [vvar] 7ffcc9b47000-7ffcc9b49000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] user@debian:~$ uname -a Linux debian 4.19.0-rc6+ #181 SMP Wed Oct 3 23:43:42 CEST 2018 x86_64 GNU/Linux user@debian:~$ As you can see, the first page of the mapping at 0x10001000 was clobbered. Link: http://lkml.kernel.org/r/20181010152736.99475-1-jannh@google.com Fixes: a4ff8e8620d3 ("mm: introduce MAP_FIXED_NOREPLACE") Signed-off-by: Jann Horn Reported-by: Daniel Micay Acked-by: Michal Hocko Acked-by: John Hubbard Acked-by: Kees Cook Acked-by: Vlastimil Babka Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/mmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/mmap.c b/mm/mmap.c index 5f2b2b184c60..f7cd9cb966c0 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1410,7 +1410,7 @@ unsigned long do_mmap(struct file *file, unsigned long addr, if (flags & MAP_FIXED_NOREPLACE) { struct vm_area_struct *vma = find_vma(mm, addr); - if (vma && vma->vm_start <= addr) + if (vma && vma->vm_start < addr + len) return -EEXIST; } From bfba8e5cf28f413aa05571af493871d74438979f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Date: Fri, 12 Oct 2018 21:34:36 -0700 Subject: [PATCH 1730/1762] mm/thp: fix call to mmu_notifier in set_pmd_migration_entry() v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Inside set_pmd_migration_entry() we are holding page table locks and thus we can not sleep so we can not call invalidate_range_start/end() So remove call to mmu_notifier_invalidate_range_start/end() because they are call inside the function calling set_pmd_migration_entry() (see try_to_unmap_one()). Link: http://lkml.kernel.org/r/20181012181056.7864-1-jglisse@redhat.com Signed-off-by: Jérôme Glisse Reported-by: Andrea Arcangeli Reviewed-by: Zi Yan Acked-by: Michal Hocko Cc: Greg Kroah-Hartman Cc: Kirill A. Shutemov Cc: "H. Peter Anvin" Cc: Anshuman Khandual Cc: Dave Hansen Cc: David Nellans Cc: Ingo Molnar Cc: Mel Gorman Cc: Minchan Kim Cc: Naoya Horiguchi Cc: Thomas Gleixner Cc: Vlastimil Babka Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/huge_memory.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 00704060b7f7..58269f8ba7c4 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2885,9 +2885,6 @@ void set_pmd_migration_entry(struct page_vma_mapped_walk *pvmw, if (!(pvmw->pmd && !pvmw->pte)) return; - mmu_notifier_invalidate_range_start(mm, address, - address + HPAGE_PMD_SIZE); - flush_cache_range(vma, address, address + HPAGE_PMD_SIZE); pmdval = *pvmw->pmd; pmdp_invalidate(vma, address, pvmw->pmd); @@ -2900,9 +2897,6 @@ void set_pmd_migration_entry(struct page_vma_mapped_walk *pvmw, set_pmd_at(mm, address, pvmw->pmd, pmdswp); page_remove_rmap(page, true); put_page(page); - - mmu_notifier_invalidate_range_end(mm, address, - address + HPAGE_PMD_SIZE); } void remove_migration_pmd(struct page_vma_mapped_walk *pvmw, struct page *new) From ac081c3be3fae6d0cc3e1862507fca3862d30b67 Mon Sep 17 00:00:00 2001 From: Khazhismel Kumykov Date: Fri, 12 Oct 2018 21:34:40 -0700 Subject: [PATCH 1731/1762] fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters() On non-preempt kernels this loop can take a long time (more than 50 ticks) processing through entries. Link: http://lkml.kernel.org/r/20181010172623.57033-1-khazhy@google.com Signed-off-by: Khazhismel Kumykov Acked-by: OGAWA Hirofumi Reviewed-by: Andrew Morton Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- fs/fat/fatent.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c index defc2168de91..f58c0cacc531 100644 --- a/fs/fat/fatent.c +++ b/fs/fat/fatent.c @@ -682,6 +682,7 @@ int fat_count_free_clusters(struct super_block *sb) if (ops->ent_get(&fatent) == FAT_ENT_FREE) free++; } while (fat_ent_next(sbi, &fatent)); + cond_resched(); } sbi->free_clusters = free; sbi->free_clus_valid = 1; From f8ccb14fd6c9f58ef766062b7e3929c423580f09 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Sat, 13 Oct 2018 10:18:41 +0200 Subject: [PATCH 1732/1762] ubifs: Fix WARN_ON logic in exit path ubifs_assert() is not WARN_ON(), so we have to invert the checks. Randy faced this warning with UBIFS being a module, since most users use UBIFS as builtin because UBIFS is the rootfs nobody noticed so far. :-( Including me. Reported-by: Randy Dunlap Fixes: 54169ddd382d ("ubifs: Turn two ubifs_assert() into a WARN_ON()") Signed-off-by: Richard Weinberger Signed-off-by: Greg Kroah-Hartman --- fs/ubifs/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index bf000c8aeffb..fec62e9dfbe6 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -2337,8 +2337,8 @@ late_initcall(ubifs_init); static void __exit ubifs_exit(void) { - WARN_ON(list_empty(&ubifs_infos)); - WARN_ON(atomic_long_read(&ubifs_clean_zn_cnt) == 0); + WARN_ON(!list_empty(&ubifs_infos)); + WARN_ON(atomic_long_read(&ubifs_clean_zn_cnt) != 0); dbg_debugfs_exit(); ubifs_compressors_exit(); From 5f8bb004bca43f7b5043c02b4aa5b9b43e15fe50 Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Thu, 11 Oct 2018 12:03:12 +0200 Subject: [PATCH 1733/1762] KVM: vmx: hyper-v: don't pass EPT configuration info to vmx_hv_remote_flush_tlb() I'm observing random crashes in multi-vCPU L2 guests running on KVM on Hyper-V. I bisected the issue to the commit 877ad952be3d ("KVM: vmx: Add tlb_remote_flush callback support"). Hyper-V TLFS states: "AddressSpace specifies an address space ID (an EPT PML4 table pointer)" So apparently, Hyper-V doesn't expect us to pass naked EPTP, only PML4 pointer should be used. Strip off EPT configuration information before calling into vmx_hv_remote_flush_tlb(). Fixes: 877ad952be3d ("KVM: vmx: Add tlb_remote_flush callback support") Signed-off-by: Vitaly Kuznetsov Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 612fd17be635..e665aa7167cf 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1572,8 +1572,12 @@ static int vmx_hv_remote_flush_tlb(struct kvm *kvm) goto out; } + /* + * FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE hypercall needs the address of the + * base of EPT PML4 table, strip off EPT configuration information. + */ ret = hyperv_flush_guest_mapping( - to_vmx(kvm_get_vcpu(kvm, 0))->ept_pointer); + to_vmx(kvm_get_vcpu(kvm, 0))->ept_pointer & PAGE_MASK); out: spin_unlock(&to_kvm_vmx(kvm)->ept_pointer_lock); From 35a7f35ad1b150ddf59a41dcac7b2fa32982be0e Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 15 Oct 2018 07:20:24 +0200 Subject: [PATCH 1734/1762] Linux 4.19-rc8 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index e8b599b4dcde..bf3786e4ffec 100644 --- a/Makefile +++ b/Makefile @@ -2,7 +2,7 @@ VERSION = 4 PATCHLEVEL = 19 SUBLEVEL = 0 -EXTRAVERSION = -rc7 +EXTRAVERSION = -rc8 NAME = Merciless Moray # *DOCUMENTATION* From 2657c6a9037df1c98eb5dae10dd554ac8c37d38f Mon Sep 17 00:00:00 2001 From: Akshu Agrawal Date: Mon, 15 Oct 2018 12:24:44 +0530 Subject: [PATCH 1735/1762] ASoC: AMD: Add SND_JACK_LINEOUT jack type Some 3 pole connectors report impedance greater than threshold of 1000Ohm. Thus, da7219 reports them as LINEOUT. Adding the SND_JACK_LINEOUT type so that we don't fail to detect any 3 pole jack type. Also, changing SND_JACK_HEADPHONE | SND_JACK_MICROPHONE -> SND_JACK_HEADSET Signed-off-by: Akshu Agrawal Signed-off-by: Mark Brown --- sound/soc/amd/acp-da7219-max98357a.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/amd/acp-da7219-max98357a.c b/sound/soc/amd/acp-da7219-max98357a.c index 717a017f0db6..3f813ea5210a 100644 --- a/sound/soc/amd/acp-da7219-max98357a.c +++ b/sound/soc/amd/acp-da7219-max98357a.c @@ -75,7 +75,7 @@ static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd) da7219_dai_clk = clk_get(component->dev, "da7219-dai-clks"); ret = snd_soc_card_jack_new(card, "Headset Jack", - SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | + SND_JACK_HEADSET | SND_JACK_LINEOUT | SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2 | SND_JACK_BTN_3, &cz_jack, NULL, 0); From bca0ac1d96739c07ee1a158e4b1202260ad7480e Mon Sep 17 00:00:00 2001 From: Mac Chiang Date: Tue, 9 Oct 2018 15:35:47 +0800 Subject: [PATCH 1736/1762] ASoC: Intel: Boards: Add KBL Dialog Maxim I2S machine driver This patch adds Kabylake I2S machine driver with: DA7219 audio codec(SSP1) and MAXIM98927(SSP0) speaker amplifier. Signed-off-by: Mac Chiang Signed-off-by: Mark Brown --- sound/soc/intel/boards/Kconfig | 13 + sound/soc/intel/boards/Makefile | 2 + sound/soc/intel/boards/kbl_da7219_max98927.c | 983 +++++++++++++++++++ 3 files changed, 998 insertions(+) create mode 100644 sound/soc/intel/boards/kbl_da7219_max98927.c diff --git a/sound/soc/intel/boards/Kconfig b/sound/soc/intel/boards/Kconfig index 88e4b4284738..73ca1350aa31 100644 --- a/sound/soc/intel/boards/Kconfig +++ b/sound/soc/intel/boards/Kconfig @@ -280,6 +280,19 @@ config SND_SOC_INTEL_KBL_DA7219_MAX98357A_MACH create an alsa sound card for DA7219 + MAX98357A I2S audio codec. Say Y if you have such a device. +config SND_SOC_INTEL_KBL_DA7219_MAX98927_MACH + tristate "KBL with DA7219 and MAX98927 in I2S Mode" + depends on MFD_INTEL_LPSS && I2C && ACPI + select SND_SOC_DA7219 + select SND_SOC_MAX98927 + select SND_SOC_DMIC + select SND_SOC_HDAC_HDMI + help + This adds support for ASoC Onboard Codec I2S machine driver. This will + create an alsa sound card for DA7219 + MAX98927 I2S audio codec. + Say Y if you have such a device. + If unsure select "N". + config SND_SOC_INTEL_SKL_HDA_DSP_GENERIC_MACH tristate "SKL/KBL/BXT/APL with HDA Codecs" select SND_SOC_HDAC_HDMI diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile index 6e88373cbe35..5381e27df9cc 100644 --- a/sound/soc/intel/boards/Makefile +++ b/sound/soc/intel/boards/Makefile @@ -17,6 +17,7 @@ snd-soc-sst-byt-cht-da7213-objs := bytcht_da7213.o snd-soc-sst-byt-cht-es8316-objs := bytcht_es8316.o snd-soc-sst-byt-cht-nocodec-objs := bytcht_nocodec.o snd-soc-kbl_da7219_max98357a-objs := kbl_da7219_max98357a.o +snd-soc-kbl_da7219_max98927-objs := kbl_da7219_max98927.o snd-soc-kbl_rt5663_max98927-objs := kbl_rt5663_max98927.o snd-soc-kbl_rt5663_rt5514_max98927-objs := kbl_rt5663_rt5514_max98927.o snd-soc-skl_rt286-objs := skl_rt286.o @@ -42,6 +43,7 @@ obj-$(CONFIG_SND_SOC_INTEL_BYT_CHT_DA7213_MACH) += snd-soc-sst-byt-cht-da7213.o obj-$(CONFIG_SND_SOC_INTEL_BYT_CHT_ES8316_MACH) += snd-soc-sst-byt-cht-es8316.o obj-$(CONFIG_SND_SOC_INTEL_BYT_CHT_NOCODEC_MACH) += snd-soc-sst-byt-cht-nocodec.o obj-$(CONFIG_SND_SOC_INTEL_KBL_DA7219_MAX98357A_MACH) += snd-soc-kbl_da7219_max98357a.o +obj-$(CONFIG_SND_SOC_INTEL_KBL_DA7219_MAX98927_MACH) += snd-soc-kbl_da7219_max98927.o obj-$(CONFIG_SND_SOC_INTEL_KBL_RT5663_MAX98927_MACH) += snd-soc-kbl_rt5663_max98927.o obj-$(CONFIG_SND_SOC_INTEL_KBL_RT5663_RT5514_MAX98927_MACH) += snd-soc-kbl_rt5663_rt5514_max98927.o obj-$(CONFIG_SND_SOC_INTEL_SKL_RT286_MACH) += snd-soc-skl_rt286.o diff --git a/sound/soc/intel/boards/kbl_da7219_max98927.c b/sound/soc/intel/boards/kbl_da7219_max98927.c new file mode 100644 index 000000000000..3ab96ee7bd3c --- /dev/null +++ b/sound/soc/intel/boards/kbl_da7219_max98927.c @@ -0,0 +1,983 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright(c) 2018 Intel Corporation. + +/* + * Intel Kabylake I2S Machine Driver with MAX98927 & DA7219 Codecs + * + * Modified from: + * Intel Kabylake I2S Machine driver supporting MAX98927 and + * RT5663 codecs + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "../../codecs/da7219.h" +#include "../../codecs/hdac_hdmi.h" +#include "../skylake/skl.h" +#include "../../codecs/da7219-aad.h" + +#define KBL_DIALOG_CODEC_DAI "da7219-hifi" +#define MAX98927_CODEC_DAI "max98927-aif1" +#define MAXIM_DEV0_NAME "i2c-MX98927:00" +#define MAXIM_DEV1_NAME "i2c-MX98927:01" +#define DUAL_CHANNEL 2 +#define QUAD_CHANNEL 4 +#define NAME_SIZE 32 + +static struct snd_soc_card *kabylake_audio_card; +static struct snd_soc_jack kabylake_hdmi[3]; + +struct kbl_hdmi_pcm { + struct list_head head; + struct snd_soc_dai *codec_dai; + int device; +}; + +struct kbl_codec_private { + struct snd_soc_jack kabylake_headset; + struct list_head hdmi_pcm_list; +}; + +enum { + KBL_DPCM_AUDIO_PB = 0, + KBL_DPCM_AUDIO_CP, + KBL_DPCM_AUDIO_ECHO_REF_CP, + KBL_DPCM_AUDIO_REF_CP, + KBL_DPCM_AUDIO_DMIC_CP, + KBL_DPCM_AUDIO_HDMI1_PB, + KBL_DPCM_AUDIO_HDMI2_PB, + KBL_DPCM_AUDIO_HDMI3_PB, + KBL_DPCM_AUDIO_HS_PB, +}; + +static int platform_clock_control(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + struct snd_soc_dapm_context *dapm = w->dapm; + struct snd_soc_card *card = dapm->card; + struct snd_soc_dai *codec_dai; + int ret = 0; + + codec_dai = snd_soc_card_get_codec_dai(card, KBL_DIALOG_CODEC_DAI); + if (!codec_dai) { + dev_err(card->dev, "Codec dai not found; Unable to set/unset codec pll\n"); + return -EIO; + } + + /* Configure sysclk for codec */ + ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, 24576000, + SND_SOC_CLOCK_IN); + if (ret) { + dev_err(card->dev, "can't set codec sysclk configuration\n"); + return ret; + } + + if (SND_SOC_DAPM_EVENT_OFF(event)) { + ret = snd_soc_dai_set_pll(codec_dai, 0, + DA7219_SYSCLK_MCLK, 0, 0); + if (ret) + dev_err(card->dev, "failed to stop PLL: %d\n", ret); + } else if (SND_SOC_DAPM_EVENT_ON(event)) { + ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL_SRM, + 0, DA7219_PLL_FREQ_OUT_98304); + if (ret) + dev_err(card->dev, "failed to start PLL: %d\n", ret); + } + + return ret; +} + +static const struct snd_kcontrol_new kabylake_controls[] = { + SOC_DAPM_PIN_SWITCH("Headphone Jack"), + SOC_DAPM_PIN_SWITCH("Headset Mic"), + SOC_DAPM_PIN_SWITCH("Left Spk"), + SOC_DAPM_PIN_SWITCH("Right Spk"), +}; + +static const struct snd_soc_dapm_widget kabylake_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_MIC("Headset Mic", NULL), + SND_SOC_DAPM_SPK("Left Spk", NULL), + SND_SOC_DAPM_SPK("Right Spk", NULL), + SND_SOC_DAPM_MIC("SoC DMIC", NULL), + SND_SOC_DAPM_SPK("DP", NULL), + SND_SOC_DAPM_SPK("HDMI", NULL), + SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, + platform_clock_control, SND_SOC_DAPM_PRE_PMU | + SND_SOC_DAPM_POST_PMD), +}; + +static const struct snd_soc_dapm_route kabylake_map[] = { + /* speaker */ + { "Left Spk", NULL, "Left BE_OUT" }, + { "Right Spk", NULL, "Right BE_OUT" }, + + /* other jacks */ + { "DMic", NULL, "SoC DMIC" }, + + { "HDMI", NULL, "hif5 Output" }, + { "DP", NULL, "hif6 Output" }, + + /* CODEC BE connections */ + { "Left HiFi Playback", NULL, "ssp0 Tx" }, + { "Right HiFi Playback", NULL, "ssp0 Tx" }, + { "ssp0 Tx", NULL, "spk_out" }, + + /* IV feedback path */ + { "codec0_fb_in", NULL, "ssp0 Rx"}, + { "ssp0 Rx", NULL, "Left HiFi Capture" }, + { "ssp0 Rx", NULL, "Right HiFi Capture" }, + + /* AEC capture path */ + { "echo_ref_out", NULL, "ssp0 Rx" }, + + /* DMIC */ + { "dmic01_hifi", NULL, "DMIC01 Rx" }, + { "DMIC01 Rx", NULL, "DMIC AIF" }, + + { "hifi1", NULL, "iDisp1 Tx" }, + { "iDisp1 Tx", NULL, "iDisp1_out" }, + { "hifi2", NULL, "iDisp2 Tx" }, + { "iDisp2 Tx", NULL, "iDisp2_out" }, + { "hifi3", NULL, "iDisp3 Tx"}, + { "iDisp3 Tx", NULL, "iDisp3_out"}, +}; + +static const struct snd_soc_dapm_route kabylake_ssp1_map[] = { + { "Headphone Jack", NULL, "HPL" }, + { "Headphone Jack", NULL, "HPR" }, + + /* other jacks */ + { "MIC", NULL, "Headset Mic" }, + + /* CODEC BE connections */ + { "Playback", NULL, "ssp1 Tx" }, + { "ssp1 Tx", NULL, "codec1_out" }, + + { "hs_in", NULL, "ssp1 Rx" }, + { "ssp1 Rx", NULL, "Capture" }, + + { "Headphone Jack", NULL, "Platform Clock" }, + { "Headset Mic", NULL, "Platform Clock" }, +}; + +static int kabylake_ssp0_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *runtime = substream->private_data; + int ret = 0, j; + + for (j = 0; j < runtime->num_codecs; j++) { + struct snd_soc_dai *codec_dai = runtime->codec_dais[j]; + + if (!strcmp(codec_dai->component->name, MAXIM_DEV0_NAME)) { + ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x30, 3, 8, 16); + if (ret < 0) { + dev_err(runtime->dev, "DEV0 TDM slot err:%d\n", ret); + return ret; + } + } + if (!strcmp(codec_dai->component->name, MAXIM_DEV1_NAME)) { + ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xC0, 3, 8, 16); + if (ret < 0) { + dev_err(runtime->dev, "DEV1 TDM slot err:%d\n", ret); + return ret; + } + } + } + + return 0; +} + +static struct snd_soc_ops kabylake_ssp0_ops = { + .hw_params = kabylake_ssp0_hw_params, +}; + +static int kabylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params) +{ + struct snd_interval *rate = hw_param_interval(params, + SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval *channels = hw_param_interval(params, + SNDRV_PCM_HW_PARAM_CHANNELS); + struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); + struct snd_soc_dpcm *dpcm = container_of( + params, struct snd_soc_dpcm, hw_params); + struct snd_soc_dai_link *fe_dai_link = dpcm->fe->dai_link; + struct snd_soc_dai_link *be_dai_link = dpcm->be->dai_link; + + /* + * The ADSP will convert the FE rate to 48k, stereo, 24 bit + */ + if (!strcmp(fe_dai_link->name, "Kbl Audio Port") || + !strcmp(fe_dai_link->name, "Kbl Audio Headset Playback") || + !strcmp(fe_dai_link->name, "Kbl Audio Capture Port")) { + rate->min = rate->max = 48000; + channels->min = channels->max = 2; + snd_mask_none(fmt); + snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE); + } + + /* + * The speaker on the SSP0 supports S16_LE and not S24_LE. + * thus changing the mask here + */ + if (!strcmp(be_dai_link->name, "SSP0-Codec")) + snd_mask_set(fmt, SNDRV_PCM_FORMAT_S16_LE); + + return 0; +} + +static int kabylake_da7219_codec_init(struct snd_soc_pcm_runtime *rtd) +{ + struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(rtd->card); + struct snd_soc_component *component = rtd->codec_dai->component; + struct snd_soc_jack *jack; + struct snd_soc_card *card = rtd->card; + int ret; + + + ret = snd_soc_dapm_add_routes(&card->dapm, + kabylake_ssp1_map, + ARRAY_SIZE(kabylake_ssp1_map)); + + /* + * Headset buttons map to the google Reference headset. + * These can be configured by userspace. + */ + ret = snd_soc_card_jack_new(kabylake_audio_card, "Headset Jack", + SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 | + SND_JACK_BTN_2 | SND_JACK_BTN_3 | SND_JACK_LINEOUT, + &ctx->kabylake_headset, NULL, 0); + if (ret) { + dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret); + return ret; + } + + jack = &ctx->kabylake_headset; + snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); + snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); + snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP); + snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); + + da7219_aad_jack_det(component, &ctx->kabylake_headset); + + ret = snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC"); + if (ret) + dev_err(rtd->dev, "SoC DMIC - Ignore suspend failed %d\n", ret); + + return ret; +} + +static int kabylake_hdmi_init(struct snd_soc_pcm_runtime *rtd, int device) +{ + struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(rtd->card); + struct snd_soc_dai *dai = rtd->codec_dai; + struct kbl_hdmi_pcm *pcm; + + pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); + if (!pcm) + return -ENOMEM; + + pcm->device = device; + pcm->codec_dai = dai; + + list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); + + return 0; +} + +static int kabylake_hdmi1_init(struct snd_soc_pcm_runtime *rtd) +{ + return kabylake_hdmi_init(rtd, KBL_DPCM_AUDIO_HDMI1_PB); +} + +static int kabylake_hdmi2_init(struct snd_soc_pcm_runtime *rtd) +{ + return kabylake_hdmi_init(rtd, KBL_DPCM_AUDIO_HDMI2_PB); +} + +static int kabylake_hdmi3_init(struct snd_soc_pcm_runtime *rtd) +{ + return kabylake_hdmi_init(rtd, KBL_DPCM_AUDIO_HDMI3_PB); +} + +static int kabylake_da7219_fe_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dapm_context *dapm; + struct snd_soc_component *component = rtd->cpu_dai->component; + + dapm = snd_soc_component_get_dapm(component); + snd_soc_dapm_ignore_suspend(dapm, "Reference Capture"); + + return 0; +} + +static const unsigned int rates[] = { + 48000, +}; + +static const struct snd_pcm_hw_constraint_list constraints_rates = { + .count = ARRAY_SIZE(rates), + .list = rates, + .mask = 0, +}; + +static const unsigned int channels[] = { + DUAL_CHANNEL, +}; + +static const struct snd_pcm_hw_constraint_list constraints_channels = { + .count = ARRAY_SIZE(channels), + .list = channels, + .mask = 0, +}; + +static unsigned int channels_quad[] = { + QUAD_CHANNEL, +}; + +static struct snd_pcm_hw_constraint_list constraints_channels_quad = { + .count = ARRAY_SIZE(channels_quad), + .list = channels_quad, + .mask = 0, +}; + +static int kbl_fe_startup(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + + /* + * On this platform for PCM device we support, + * 48Khz + * stereo + * 16 bit audio + */ + + runtime->hw.channels_max = DUAL_CHANNEL; + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_channels); + + runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE; + snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16); + + snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); + + return 0; +} + +static const struct snd_soc_ops kabylake_da7219_fe_ops = { + .startup = kbl_fe_startup, +}; + +static int kabylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params) +{ + struct snd_interval *channels = hw_param_interval(params, + SNDRV_PCM_HW_PARAM_CHANNELS); + + /* + * set BE channel constraint as user FE channels + */ + + if (params_channels(params) == 2) + channels->min = channels->max = 2; + else + channels->min = channels->max = 4; + + return 0; +} + +static int kabylake_dmic_startup(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + + runtime->hw.channels_min = runtime->hw.channels_max = QUAD_CHANNEL; + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_channels_quad); + + return snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); +} + +static struct snd_soc_ops kabylake_dmic_ops = { + .startup = kabylake_dmic_startup, +}; + +static const unsigned int rates_16000[] = { + 16000, +}; + +static const struct snd_pcm_hw_constraint_list constraints_16000 = { + .count = ARRAY_SIZE(rates_16000), + .list = rates_16000, +}; + +static const unsigned int ch_mono[] = { + 1, +}; +static const struct snd_pcm_hw_constraint_list constraints_refcap = { + .count = ARRAY_SIZE(ch_mono), + .list = ch_mono, +}; + +static int kabylake_refcap_startup(struct snd_pcm_substream *substream) +{ + substream->runtime->hw.channels_max = 1; + snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_refcap); + + return snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &constraints_16000); +} + + +static struct snd_soc_ops skylaye_refcap_ops = { + .startup = kabylake_refcap_startup, +}; + +static struct snd_soc_codec_conf max98927_codec_conf[] = { + + { + .dev_name = MAXIM_DEV0_NAME, + .name_prefix = "Right", + }, + + { + .dev_name = MAXIM_DEV1_NAME, + .name_prefix = "Left", + }, +}; + +static struct snd_soc_dai_link_component ssp0_codec_components[] = { + { /* Left */ + .name = MAXIM_DEV0_NAME, + .dai_name = MAX98927_CODEC_DAI, + }, + + { /* For Right */ + .name = MAXIM_DEV1_NAME, + .dai_name = MAX98927_CODEC_DAI, + }, + +}; + +/* kabylake digital audio interface glue - connects codec <--> CPU */ +static struct snd_soc_dai_link kabylake_dais[] = { + /* Front End DAI links */ + [KBL_DPCM_AUDIO_PB] = { + .name = "Kbl Audio Port", + .stream_name = "Audio", + .cpu_dai_name = "System Pin", + .platform_name = "0000:00:1f.3", + .dynamic = 1, + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .nonatomic = 1, + .init = kabylake_da7219_fe_init, + .trigger = { + SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, + .dpcm_playback = 1, + .ops = &kabylake_da7219_fe_ops, + }, + [KBL_DPCM_AUDIO_CP] = { + .name = "Kbl Audio Capture Port", + .stream_name = "Audio Record", + .cpu_dai_name = "System Pin", + .platform_name = "0000:00:1f.3", + .dynamic = 1, + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .nonatomic = 1, + .trigger = { + SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, + .dpcm_capture = 1, + .ops = &kabylake_da7219_fe_ops, + }, + [KBL_DPCM_AUDIO_ECHO_REF_CP] = { + .name = "Kbl Audio Echo Reference cap", + .stream_name = "Echoreference Capture", + .cpu_dai_name = "Echoref Pin", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .init = NULL, + .capture_only = 1, + .nonatomic = 1, + }, + [KBL_DPCM_AUDIO_REF_CP] = { + .name = "Kbl Audio Reference cap", + .stream_name = "Wake on Voice", + .cpu_dai_name = "Reference Pin", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .init = NULL, + .dpcm_capture = 1, + .nonatomic = 1, + .dynamic = 1, + .ops = &skylaye_refcap_ops, + }, + [KBL_DPCM_AUDIO_DMIC_CP] = { + .name = "Kbl Audio DMIC cap", + .stream_name = "dmiccap", + .cpu_dai_name = "DMIC Pin", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .init = NULL, + .dpcm_capture = 1, + .nonatomic = 1, + .dynamic = 1, + .ops = &kabylake_dmic_ops, + }, + [KBL_DPCM_AUDIO_HDMI1_PB] = { + .name = "Kbl HDMI Port1", + .stream_name = "Hdmi1", + .cpu_dai_name = "HDMI1 Pin", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .dpcm_playback = 1, + .init = NULL, + .trigger = { + SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, + .nonatomic = 1, + .dynamic = 1, + }, + [KBL_DPCM_AUDIO_HDMI2_PB] = { + .name = "Kbl HDMI Port2", + .stream_name = "Hdmi2", + .cpu_dai_name = "HDMI2 Pin", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .dpcm_playback = 1, + .init = NULL, + .trigger = { + SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, + .nonatomic = 1, + .dynamic = 1, + }, + [KBL_DPCM_AUDIO_HDMI3_PB] = { + .name = "Kbl HDMI Port3", + .stream_name = "Hdmi3", + .cpu_dai_name = "HDMI3 Pin", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .trigger = { + SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, + .dpcm_playback = 1, + .init = NULL, + .nonatomic = 1, + .dynamic = 1, + }, + [KBL_DPCM_AUDIO_HS_PB] = { + .name = "Kbl Audio Headset Playback", + .stream_name = "Headset Audio", + .cpu_dai_name = "System Pin2", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .dpcm_playback = 1, + .nonatomic = 1, + .dynamic = 1, + .init = kabylake_da7219_fe_init, + .trigger = { + SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, + .ops = &kabylake_da7219_fe_ops, + + }, + + /* Back End DAI links */ + { + /* SSP0 - Codec */ + .name = "SSP0-Codec", + .id = 0, + .cpu_dai_name = "SSP0 Pin", + .platform_name = "0000:00:1f.3", + .no_pcm = 1, + .codecs = ssp0_codec_components, + .num_codecs = ARRAY_SIZE(ssp0_codec_components), + .dai_fmt = SND_SOC_DAIFMT_DSP_B | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .dpcm_playback = 1, + .dpcm_capture = 1, + .ignore_pmdown_time = 1, + .be_hw_params_fixup = kabylake_ssp_fixup, + .ops = &kabylake_ssp0_ops, + }, + { + /* SSP1 - Codec */ + .name = "SSP1-Codec", + .id = 1, + .cpu_dai_name = "SSP1 Pin", + .platform_name = "0000:00:1f.3", + .no_pcm = 1, + .codec_name = "i2c-DLGS7219:00", + .codec_dai_name = KBL_DIALOG_CODEC_DAI, + .init = kabylake_da7219_codec_init, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .ignore_pmdown_time = 1, + .be_hw_params_fixup = kabylake_ssp_fixup, + .dpcm_playback = 1, + .dpcm_capture = 1, + }, + { + .name = "dmic01", + .id = 2, + .cpu_dai_name = "DMIC01 Pin", + .codec_name = "dmic-codec", + .codec_dai_name = "dmic-hifi", + .platform_name = "0000:00:1f.3", + .be_hw_params_fixup = kabylake_dmic_fixup, + .ignore_suspend = 1, + .dpcm_capture = 1, + .no_pcm = 1, + }, + { + .name = "iDisp1", + .id = 3, + .cpu_dai_name = "iDisp1 Pin", + .codec_name = "ehdaudio0D2", + .codec_dai_name = "intel-hdmi-hifi1", + .platform_name = "0000:00:1f.3", + .dpcm_playback = 1, + .init = kabylake_hdmi1_init, + .no_pcm = 1, + }, + { + .name = "iDisp2", + .id = 4, + .cpu_dai_name = "iDisp2 Pin", + .codec_name = "ehdaudio0D2", + .codec_dai_name = "intel-hdmi-hifi2", + .platform_name = "0000:00:1f.3", + .init = kabylake_hdmi2_init, + .dpcm_playback = 1, + .no_pcm = 1, + }, + { + .name = "iDisp3", + .id = 5, + .cpu_dai_name = "iDisp3 Pin", + .codec_name = "ehdaudio0D2", + .codec_dai_name = "intel-hdmi-hifi3", + .platform_name = "0000:00:1f.3", + .init = kabylake_hdmi3_init, + .dpcm_playback = 1, + .no_pcm = 1, + }, +}; + +/* kabylake digital audio interface glue - connects codec <--> CPU */ +static struct snd_soc_dai_link kabylake_max98927_dais[] = { + /* Front End DAI links */ + [KBL_DPCM_AUDIO_PB] = { + .name = "Kbl Audio Port", + .stream_name = "Audio", + .cpu_dai_name = "System Pin", + .platform_name = "0000:00:1f.3", + .dynamic = 1, + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .nonatomic = 1, + .init = kabylake_da7219_fe_init, + .trigger = { + SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, + .dpcm_playback = 1, + .ops = &kabylake_da7219_fe_ops, + }, + [KBL_DPCM_AUDIO_CP] = { + .name = "Kbl Audio Capture Port", + .stream_name = "Audio Record", + .cpu_dai_name = "System Pin", + .platform_name = "0000:00:1f.3", + .dynamic = 1, + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .nonatomic = 1, + .trigger = { + SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, + .dpcm_capture = 1, + .ops = &kabylake_da7219_fe_ops, + }, + [KBL_DPCM_AUDIO_ECHO_REF_CP] = { + .name = "Kbl Audio Echo Reference cap", + .stream_name = "Echoreference Capture", + .cpu_dai_name = "Echoref Pin", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .init = NULL, + .capture_only = 1, + .nonatomic = 1, + }, + [KBL_DPCM_AUDIO_REF_CP] = { + .name = "Kbl Audio Reference cap", + .stream_name = "Wake on Voice", + .cpu_dai_name = "Reference Pin", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .init = NULL, + .dpcm_capture = 1, + .nonatomic = 1, + .dynamic = 1, + .ops = &skylaye_refcap_ops, + }, + [KBL_DPCM_AUDIO_DMIC_CP] = { + .name = "Kbl Audio DMIC cap", + .stream_name = "dmiccap", + .cpu_dai_name = "DMIC Pin", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .init = NULL, + .dpcm_capture = 1, + .nonatomic = 1, + .dynamic = 1, + .ops = &kabylake_dmic_ops, + }, + [KBL_DPCM_AUDIO_HDMI1_PB] = { + .name = "Kbl HDMI Port1", + .stream_name = "Hdmi1", + .cpu_dai_name = "HDMI1 Pin", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .dpcm_playback = 1, + .init = NULL, + .trigger = { + SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, + .nonatomic = 1, + .dynamic = 1, + }, + [KBL_DPCM_AUDIO_HDMI2_PB] = { + .name = "Kbl HDMI Port2", + .stream_name = "Hdmi2", + .cpu_dai_name = "HDMI2 Pin", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .dpcm_playback = 1, + .init = NULL, + .trigger = { + SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, + .nonatomic = 1, + .dynamic = 1, + }, + [KBL_DPCM_AUDIO_HDMI3_PB] = { + .name = "Kbl HDMI Port3", + .stream_name = "Hdmi3", + .cpu_dai_name = "HDMI3 Pin", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .platform_name = "0000:00:1f.3", + .trigger = { + SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, + .dpcm_playback = 1, + .init = NULL, + .nonatomic = 1, + .dynamic = 1, + }, + + /* Back End DAI links */ + { + /* SSP0 - Codec */ + .name = "SSP0-Codec", + .id = 0, + .cpu_dai_name = "SSP0 Pin", + .platform_name = "0000:00:1f.3", + .no_pcm = 1, + .codecs = ssp0_codec_components, + .num_codecs = ARRAY_SIZE(ssp0_codec_components), + .dai_fmt = SND_SOC_DAIFMT_DSP_B | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .dpcm_playback = 1, + .dpcm_capture = 1, + .ignore_pmdown_time = 1, + .be_hw_params_fixup = kabylake_ssp_fixup, + .ops = &kabylake_ssp0_ops, + }, + { + .name = "dmic01", + .id = 1, + .cpu_dai_name = "DMIC01 Pin", + .codec_name = "dmic-codec", + .codec_dai_name = "dmic-hifi", + .platform_name = "0000:00:1f.3", + .be_hw_params_fixup = kabylake_dmic_fixup, + .ignore_suspend = 1, + .dpcm_capture = 1, + .no_pcm = 1, + }, + { + .name = "iDisp1", + .id = 2, + .cpu_dai_name = "iDisp1 Pin", + .codec_name = "ehdaudio0D2", + .codec_dai_name = "intel-hdmi-hifi1", + .platform_name = "0000:00:1f.3", + .dpcm_playback = 1, + .init = kabylake_hdmi1_init, + .no_pcm = 1, + }, + { + .name = "iDisp2", + .id = 3, + .cpu_dai_name = "iDisp2 Pin", + .codec_name = "ehdaudio0D2", + .codec_dai_name = "intel-hdmi-hifi2", + .platform_name = "0000:00:1f.3", + .init = kabylake_hdmi2_init, + .dpcm_playback = 1, + .no_pcm = 1, + }, + { + .name = "iDisp3", + .id = 4, + .cpu_dai_name = "iDisp3 Pin", + .codec_name = "ehdaudio0D2", + .codec_dai_name = "intel-hdmi-hifi3", + .platform_name = "0000:00:1f.3", + .init = kabylake_hdmi3_init, + .dpcm_playback = 1, + .no_pcm = 1, + }, +}; + +static int kabylake_card_late_probe(struct snd_soc_card *card) +{ + struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(card); + struct kbl_hdmi_pcm *pcm; + struct snd_soc_component *component = NULL; + int err, i = 0; + char jack_name[NAME_SIZE]; + + list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { + component = pcm->codec_dai->component; + snprintf(jack_name, sizeof(jack_name), + "HDMI/DP, pcm=%d Jack", pcm->device); + err = snd_soc_card_jack_new(card, jack_name, + SND_JACK_AVOUT, &kabylake_hdmi[i], + NULL, 0); + + if (err) + return err; + + err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device, + &kabylake_hdmi[i]); + if (err < 0) + return err; + + i++; + } + + if (!component) + return -EINVAL; + + return hdac_hdmi_jack_port_init(component, &card->dapm); + + return 0; +} + +/* kabylake audio machine driver for SPT + DA7219 */ +static struct snd_soc_card kbl_audio_card_da7219_m98927 = { + .name = "kblda7219m98927", + .owner = THIS_MODULE, + .dai_link = kabylake_dais, + .num_links = ARRAY_SIZE(kabylake_dais), + .controls = kabylake_controls, + .num_controls = ARRAY_SIZE(kabylake_controls), + .dapm_widgets = kabylake_widgets, + .num_dapm_widgets = ARRAY_SIZE(kabylake_widgets), + .dapm_routes = kabylake_map, + .num_dapm_routes = ARRAY_SIZE(kabylake_map), + .codec_conf = max98927_codec_conf, + .num_configs = ARRAY_SIZE(max98927_codec_conf), + .fully_routed = true, + .late_probe = kabylake_card_late_probe, +}; + +/* kabylake audio machine driver for Maxim98927 */ +static struct snd_soc_card kbl_audio_card_max98927 = { + .name = "kblmax98927", + .owner = THIS_MODULE, + .dai_link = kabylake_max98927_dais, + .num_links = ARRAY_SIZE(kabylake_max98927_dais), + .controls = kabylake_controls, + .num_controls = ARRAY_SIZE(kabylake_controls), + .dapm_widgets = kabylake_widgets, + .num_dapm_widgets = ARRAY_SIZE(kabylake_widgets), + .dapm_routes = kabylake_map, + .num_dapm_routes = ARRAY_SIZE(kabylake_map), + .codec_conf = max98927_codec_conf, + .num_configs = ARRAY_SIZE(max98927_codec_conf), + .fully_routed = true, + .late_probe = kabylake_card_late_probe, +}; + +static int kabylake_audio_probe(struct platform_device *pdev) +{ + struct kbl_codec_private *ctx; + + ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC); + if (!ctx) + return -ENOMEM; + + INIT_LIST_HEAD(&ctx->hdmi_pcm_list); + + kabylake_audio_card = + (struct snd_soc_card *)pdev->id_entry->driver_data; + + kabylake_audio_card->dev = &pdev->dev; + snd_soc_card_set_drvdata(kabylake_audio_card, ctx); + + return devm_snd_soc_register_card(&pdev->dev, kabylake_audio_card); +} + +static const struct platform_device_id kbl_board_ids[] = { + { + .name = "kbl_da7219_max98927", + .driver_data = + (kernel_ulong_t)&kbl_audio_card_da7219_m98927, + }, + { + .name = "kbl_max98927", + .driver_data = + (kernel_ulong_t)&kbl_audio_card_max98927, + }, + { } +}; + +static struct platform_driver kabylake_audio = { + .probe = kabylake_audio_probe, + .driver = { + .name = "kbl_da7219_max98927", + .pm = &snd_soc_pm_ops, + }, + .id_table = kbl_board_ids, +}; + +module_platform_driver(kabylake_audio) + +/* Module information */ +MODULE_DESCRIPTION("Audio KabyLake Machine driver for MAX98927 & DA7219"); +MODULE_AUTHOR("Mac Chiang "); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:kbl_da7219_max98927"); +MODULE_ALIAS("platform:kbl_max98927"); From 6530adeaaf5018cd13437dc82adcd9349657a00e Mon Sep 17 00:00:00 2001 From: Mac Chiang Date: Tue, 9 Oct 2018 15:37:08 +0800 Subject: [PATCH 1737/1762] ASoC: Intel: common: Add Kabylake Dialog+Maxim machine driver entry This patch adds da7219_max98927 machine driver entry into machine table Signed-off-by: Mac Chiang Signed-off-by: Mark Brown --- sound/soc/intel/common/soc-acpi-intel-kbl-match.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/sound/soc/intel/common/soc-acpi-intel-kbl-match.c b/sound/soc/intel/common/soc-acpi-intel-kbl-match.c index 0ee173ca437d..a317b7790fce 100644 --- a/sound/soc/intel/common/soc-acpi-intel-kbl-match.c +++ b/sound/soc/intel/common/soc-acpi-intel-kbl-match.c @@ -32,6 +32,11 @@ static struct snd_soc_acpi_codecs kbl_7219_98357_codecs = { .codecs = {"MX98357A"} }; +static struct snd_soc_acpi_codecs kbl_7219_98927_codecs = { + .num_codecs = 1, + .codecs = {"MX98927"} +}; + struct snd_soc_acpi_mach snd_soc_acpi_intel_kbl_machines[] = { { .id = "INT343A", @@ -83,6 +88,14 @@ struct snd_soc_acpi_mach snd_soc_acpi_intel_kbl_machines[] = { .quirk_data = &kbl_7219_98357_codecs, .pdata = &skl_dmic_data, }, + { + .id = "DLGS7219", + .drv_name = "kbl_da7219_max98927", + .fw_filename = "intel/dsp_fw_kbl.bin", + .machine_quirk = snd_soc_acpi_codec_list, + .quirk_data = &kbl_7219_98927_codecs, + .pdata = &skl_dmic_data + }, {}, }; EXPORT_SYMBOL_GPL(snd_soc_acpi_intel_kbl_machines); From 3b991038498bc5011b063d6a804503c577a79434 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 13 Oct 2018 17:17:04 +0200 Subject: [PATCH 1738/1762] ASoC: intel: don't pass GFP_DMA32 to dma_alloc_coherent The DMA API does its own zone decisions based on the coherent_dma_mask. Signed-off-by: Christoph Hellwig Reviewed-by: Takashi Iwai Signed-off-by: Mark Brown --- sound/soc/intel/common/sst-firmware.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/intel/common/sst-firmware.c b/sound/soc/intel/common/sst-firmware.c index 11041aedea31..1e067504b604 100644 --- a/sound/soc/intel/common/sst-firmware.c +++ b/sound/soc/intel/common/sst-firmware.c @@ -355,7 +355,7 @@ struct sst_fw *sst_fw_new(struct sst_dsp *dsp, /* allocate DMA buffer to store FW data */ sst_fw->dma_buf = dma_alloc_coherent(dsp->dma_dev, sst_fw->size, - &sst_fw->dmable_fw_paddr, GFP_DMA | GFP_KERNEL); + &sst_fw->dmable_fw_paddr, GFP_KERNEL); if (!sst_fw->dma_buf) { dev_err(dsp->dev, "error: DMA alloc failed\n"); kfree(sst_fw); From 66ecce3325383c8304063e7d5a30f4374ef5a33e Mon Sep 17 00:00:00 2001 From: Marcus Cooper Date: Wed, 17 Oct 2018 00:38:05 -0700 Subject: [PATCH 1739/1762] ASoC: sun4i-i2s: Add compatibility with A64 codec I2S The I2S block used for the audio codec in the A64 differs from other 3 I2S modules in A64 and isn't compatible with H3. But it is very similar to what is found in A10(sun4i). However, its TX FIFO is located at a different address. Signed-off-by: Marcus Cooper Signed-off-by: Vasily Khoruzhick Acked-by: Maxime Ripard Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/sun4i-i2s.txt | 2 ++ sound/soc/sunxi/sun4i-i2s.c | 21 +++++++++++++++++++ 2 files changed, 23 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt index b9d50d6cdef3..61e71c1729e0 100644 --- a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt +++ b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt @@ -10,6 +10,7 @@ Required properties: - "allwinner,sun6i-a31-i2s" - "allwinner,sun8i-a83t-i2s" - "allwinner,sun8i-h3-i2s" + - "allwinner,sun50i-a64-codec-i2s" - reg: physical base address of the controller and length of memory mapped region. - interrupts: should contain the I2S interrupt. @@ -26,6 +27,7 @@ Required properties for the following compatibles: - "allwinner,sun6i-a31-i2s" - "allwinner,sun8i-a83t-i2s" - "allwinner,sun8i-h3-i2s" + - "allwinner,sun50i-a64-codec-i2s" - resets: phandle to the reset line for this codec Example: diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c index a4aa931ebfae..c63d226e2436 100644 --- a/sound/soc/sunxi/sun4i-i2s.c +++ b/sound/soc/sunxi/sun4i-i2s.c @@ -961,6 +961,23 @@ static const struct sun4i_i2s_quirks sun8i_h3_i2s_quirks = { .field_rxchansel = REG_FIELD(SUN8I_I2S_RX_CHAN_SEL_REG, 0, 2), }; +static const struct sun4i_i2s_quirks sun50i_a64_codec_i2s_quirks = { + .has_reset = true, + .reg_offset_txdata = SUN8I_I2S_FIFO_TX_REG, + .sun4i_i2s_regmap = &sun4i_i2s_regmap_config, + .has_slave_select_bit = true, + .field_clkdiv_mclk_en = REG_FIELD(SUN4I_I2S_CLK_DIV_REG, 7, 7), + .field_fmt_wss = REG_FIELD(SUN4I_I2S_FMT0_REG, 2, 3), + .field_fmt_sr = REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 5), + .field_fmt_bclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 6, 6), + .field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7), + .field_fmt_mode = REG_FIELD(SUN4I_I2S_FMT0_REG, 0, 1), + .field_txchanmap = REG_FIELD(SUN4I_I2S_TX_CHAN_MAP_REG, 0, 31), + .field_rxchanmap = REG_FIELD(SUN4I_I2S_RX_CHAN_MAP_REG, 0, 31), + .field_txchansel = REG_FIELD(SUN4I_I2S_TX_CHAN_SEL_REG, 0, 2), + .field_rxchansel = REG_FIELD(SUN4I_I2S_RX_CHAN_SEL_REG, 0, 2), +}; + static int sun4i_i2s_init_regmap_fields(struct device *dev, struct sun4i_i2s *i2s) { @@ -1169,6 +1186,10 @@ static const struct of_device_id sun4i_i2s_match[] = { .compatible = "allwinner,sun8i-h3-i2s", .data = &sun8i_h3_i2s_quirks, }, + { + .compatible = "allwinner,sun50i-a64-codec-i2s", + .data = &sun50i_a64_codec_i2s_quirks, + }, {} }; MODULE_DEVICE_TABLE(of, sun4i_i2s_match); From 13c3bf174becfb8b55adcfeb6f01724dc99347f0 Mon Sep 17 00:00:00 2001 From: Vasily Khoruzhick Date: Wed, 17 Oct 2018 00:38:06 -0700 Subject: [PATCH 1740/1762] ASoC: sun8i-codec: Don't hardcode BCLK / LRCK ratio BCLK / LRCK ratio should be sample size * channels, but it was hardcoded to 32 (0x1 is 32 as per A33 and A64 datasheets). Calculate it basing on sample size and number of channels. Signed-off-by: Vasily Khoruzhick Acked-by: Maxime Ripard Signed-off-by: Mark Brown --- sound/soc/sunxi/sun8i-codec.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c index fb37dd927e33..522a72fde78d 100644 --- a/sound/soc/sunxi/sun8i-codec.c +++ b/sound/soc/sunxi/sun8i-codec.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -52,7 +53,6 @@ #define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV 13 #define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV 9 #define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV 6 -#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_16 (1 << 6) #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ 4 #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_16 (1 << 4) #define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT 2 @@ -300,12 +300,23 @@ static u8 sun8i_codec_get_bclk_div(struct sun8i_codec *scodec, return best_val; } +static int sun8i_codec_get_lrck_div(unsigned int channels, + unsigned int word_size) +{ + unsigned int div = word_size * channels; + + if (div < 16 || div > 256) + return -EINVAL; + + return ilog2(div) - 4; +} + static int sun8i_codec_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct sun8i_codec *scodec = snd_soc_component_get_drvdata(dai->component); - int sample_rate; + int sample_rate, lrck_div; u8 bclk_div; /* @@ -321,9 +332,14 @@ static int sun8i_codec_hw_params(struct snd_pcm_substream *substream, SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK, bclk_div << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV); + lrck_div = sun8i_codec_get_lrck_div(params_channels(params), + params_physical_width(params)); + if (lrck_div < 0) + return lrck_div; + regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK, - SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_16); + lrck_div << SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV); sample_rate = sun8i_codec_get_hw_rate(params); if (sample_rate < 0) From 55b407f6468c481edc4a26b21c9f567ae57f01a4 Mon Sep 17 00:00:00 2001 From: Vasily Khoruzhick Date: Wed, 17 Oct 2018 00:38:07 -0700 Subject: [PATCH 1741/1762] ASoC: sun8i-codec-analog: split regmap code into separate driver It will be reused by sun50i-codec-analog later. Signed-off-by: Vasily Khoruzhick Acked-by: Maxime Ripard Signed-off-by: Mark Brown --- sound/soc/sunxi/Kconfig | 7 +- sound/soc/sunxi/Makefile | 1 + sound/soc/sunxi/sun8i-adda-pr-regmap.c | 102 +++++++++++++++++++++++++ sound/soc/sunxi/sun8i-adda-pr-regmap.h | 7 ++ sound/soc/sunxi/sun8i-codec-analog.c | 79 +------------------ 5 files changed, 119 insertions(+), 77 deletions(-) create mode 100644 sound/soc/sunxi/sun8i-adda-pr-regmap.c create mode 100644 sound/soc/sunxi/sun8i-adda-pr-regmap.h diff --git a/sound/soc/sunxi/Kconfig b/sound/soc/sunxi/Kconfig index 22408bc2d6ec..83b770cdfdaa 100644 --- a/sound/soc/sunxi/Kconfig +++ b/sound/soc/sunxi/Kconfig @@ -23,7 +23,7 @@ config SND_SUN8I_CODEC config SND_SUN8I_CODEC_ANALOG tristate "Allwinner sun8i Codec Analog Controls Support" depends on MACH_SUN8I || (ARM64 && ARCH_SUNXI) || COMPILE_TEST - select REGMAP + select SND_SUN8I_ADDA_PR_REGMAP help Say Y or M if you want to add support for the analog controls for the codec embedded in newer Allwinner SoCs. @@ -45,4 +45,9 @@ config SND_SUN4I_SPDIF help Say Y or M to add support for the S/PDIF audio block in the Allwinner A10 and affiliated SoCs. + +config SND_SUN8I_ADDA_PR_REGMAP + tristate + select REGMAP + endmenu diff --git a/sound/soc/sunxi/Makefile b/sound/soc/sunxi/Makefile index 4a9ef67386ca..74b99d55cfca 100644 --- a/sound/soc/sunxi/Makefile +++ b/sound/soc/sunxi/Makefile @@ -4,3 +4,4 @@ obj-$(CONFIG_SND_SUN4I_I2S) += sun4i-i2s.o obj-$(CONFIG_SND_SUN4I_SPDIF) += sun4i-spdif.o obj-$(CONFIG_SND_SUN8I_CODEC_ANALOG) += sun8i-codec-analog.o obj-$(CONFIG_SND_SUN8I_CODEC) += sun8i-codec.o +obj-$(CONFIG_SND_SUN8I_ADDA_PR_REGMAP) += sun8i-adda-pr-regmap.o diff --git a/sound/soc/sunxi/sun8i-adda-pr-regmap.c b/sound/soc/sunxi/sun8i-adda-pr-regmap.c new file mode 100644 index 000000000000..e68ce9d2884d --- /dev/null +++ b/sound/soc/sunxi/sun8i-adda-pr-regmap.c @@ -0,0 +1,102 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * This driver provides regmap to access to analog part of audio codec + * found on Allwinner A23, A31s, A33, H3 and A64 Socs + * + * Copyright 2016 Chen-Yu Tsai + * Copyright (C) 2018 Vasily Khoruzhick + */ + +#include +#include +#include +#include + +#include "sun8i-adda-pr-regmap.h" + +/* Analog control register access bits */ +#define ADDA_PR 0x0 /* PRCM base + 0x1c0 */ +#define ADDA_PR_RESET BIT(28) +#define ADDA_PR_WRITE BIT(24) +#define ADDA_PR_ADDR_SHIFT 16 +#define ADDA_PR_ADDR_MASK GENMASK(4, 0) +#define ADDA_PR_DATA_IN_SHIFT 8 +#define ADDA_PR_DATA_IN_MASK GENMASK(7, 0) +#define ADDA_PR_DATA_OUT_SHIFT 0 +#define ADDA_PR_DATA_OUT_MASK GENMASK(7, 0) + +/* regmap access bits */ +static int adda_reg_read(void *context, unsigned int reg, unsigned int *val) +{ + void __iomem *base = (void __iomem *)context; + u32 tmp; + + /* De-assert reset */ + writel(readl(base) | ADDA_PR_RESET, base); + + /* Clear write bit */ + writel(readl(base) & ~ADDA_PR_WRITE, base); + + /* Set register address */ + tmp = readl(base); + tmp &= ~(ADDA_PR_ADDR_MASK << ADDA_PR_ADDR_SHIFT); + tmp |= (reg & ADDA_PR_ADDR_MASK) << ADDA_PR_ADDR_SHIFT; + writel(tmp, base); + + /* Read back value */ + *val = readl(base) & ADDA_PR_DATA_OUT_MASK; + + return 0; +} + +static int adda_reg_write(void *context, unsigned int reg, unsigned int val) +{ + void __iomem *base = (void __iomem *)context; + u32 tmp; + + /* De-assert reset */ + writel(readl(base) | ADDA_PR_RESET, base); + + /* Set register address */ + tmp = readl(base); + tmp &= ~(ADDA_PR_ADDR_MASK << ADDA_PR_ADDR_SHIFT); + tmp |= (reg & ADDA_PR_ADDR_MASK) << ADDA_PR_ADDR_SHIFT; + writel(tmp, base); + + /* Set data to write */ + tmp = readl(base); + tmp &= ~(ADDA_PR_DATA_IN_MASK << ADDA_PR_DATA_IN_SHIFT); + tmp |= (val & ADDA_PR_DATA_IN_MASK) << ADDA_PR_DATA_IN_SHIFT; + writel(tmp, base); + + /* Set write bit to signal a write */ + writel(readl(base) | ADDA_PR_WRITE, base); + + /* Clear write bit */ + writel(readl(base) & ~ADDA_PR_WRITE, base); + + return 0; +} + +static const struct regmap_config adda_pr_regmap_cfg = { + .name = "adda-pr", + .reg_bits = 5, + .reg_stride = 1, + .val_bits = 8, + .reg_read = adda_reg_read, + .reg_write = adda_reg_write, + .fast_io = true, + .max_register = 31, +}; + +struct regmap *sun8i_adda_pr_regmap_init(struct device *dev, + void __iomem *base) +{ + return devm_regmap_init(dev, NULL, base, &adda_pr_regmap_cfg); +} +EXPORT_SYMBOL_GPL(sun8i_adda_pr_regmap_init); + +MODULE_DESCRIPTION("Allwinner analog audio codec regmap driver"); +MODULE_AUTHOR("Vasily Khoruzhick "); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:sunxi-adda-pr"); diff --git a/sound/soc/sunxi/sun8i-adda-pr-regmap.h b/sound/soc/sunxi/sun8i-adda-pr-regmap.h new file mode 100644 index 000000000000..a5ae95dfebc1 --- /dev/null +++ b/sound/soc/sunxi/sun8i-adda-pr-regmap.h @@ -0,0 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2018 Vasily Khoruzhick + */ + +struct regmap *sun8i_adda_pr_regmap_init(struct device *dev, + void __iomem *base); diff --git a/sound/soc/sunxi/sun8i-codec-analog.c b/sound/soc/sunxi/sun8i-codec-analog.c index 485e79f292c4..916a46bbc1c8 100644 --- a/sound/soc/sunxi/sun8i-codec-analog.c +++ b/sound/soc/sunxi/sun8i-codec-analog.c @@ -27,6 +27,8 @@ #include #include +#include "sun8i-adda-pr-regmap.h" + /* Codec analog control register offsets and bit fields */ #define SUN8I_ADDA_HP_VOLC 0x00 #define SUN8I_ADDA_HP_VOLC_PA_CLK_GATE 7 @@ -120,81 +122,6 @@ #define SUN8I_ADDA_ADC_AP_EN_ADCLEN 6 #define SUN8I_ADDA_ADC_AP_EN_ADCG 0 -/* Analog control register access bits */ -#define ADDA_PR 0x0 /* PRCM base + 0x1c0 */ -#define ADDA_PR_RESET BIT(28) -#define ADDA_PR_WRITE BIT(24) -#define ADDA_PR_ADDR_SHIFT 16 -#define ADDA_PR_ADDR_MASK GENMASK(4, 0) -#define ADDA_PR_DATA_IN_SHIFT 8 -#define ADDA_PR_DATA_IN_MASK GENMASK(7, 0) -#define ADDA_PR_DATA_OUT_SHIFT 0 -#define ADDA_PR_DATA_OUT_MASK GENMASK(7, 0) - -/* regmap access bits */ -static int adda_reg_read(void *context, unsigned int reg, unsigned int *val) -{ - void __iomem *base = (void __iomem *)context; - u32 tmp; - - /* De-assert reset */ - writel(readl(base) | ADDA_PR_RESET, base); - - /* Clear write bit */ - writel(readl(base) & ~ADDA_PR_WRITE, base); - - /* Set register address */ - tmp = readl(base); - tmp &= ~(ADDA_PR_ADDR_MASK << ADDA_PR_ADDR_SHIFT); - tmp |= (reg & ADDA_PR_ADDR_MASK) << ADDA_PR_ADDR_SHIFT; - writel(tmp, base); - - /* Read back value */ - *val = readl(base) & ADDA_PR_DATA_OUT_MASK; - - return 0; -} - -static int adda_reg_write(void *context, unsigned int reg, unsigned int val) -{ - void __iomem *base = (void __iomem *)context; - u32 tmp; - - /* De-assert reset */ - writel(readl(base) | ADDA_PR_RESET, base); - - /* Set register address */ - tmp = readl(base); - tmp &= ~(ADDA_PR_ADDR_MASK << ADDA_PR_ADDR_SHIFT); - tmp |= (reg & ADDA_PR_ADDR_MASK) << ADDA_PR_ADDR_SHIFT; - writel(tmp, base); - - /* Set data to write */ - tmp = readl(base); - tmp &= ~(ADDA_PR_DATA_IN_MASK << ADDA_PR_DATA_IN_SHIFT); - tmp |= (val & ADDA_PR_DATA_IN_MASK) << ADDA_PR_DATA_IN_SHIFT; - writel(tmp, base); - - /* Set write bit to signal a write */ - writel(readl(base) | ADDA_PR_WRITE, base); - - /* Clear write bit */ - writel(readl(base) & ~ADDA_PR_WRITE, base); - - return 0; -} - -static const struct regmap_config adda_pr_regmap_cfg = { - .name = "adda-pr", - .reg_bits = 5, - .reg_stride = 1, - .val_bits = 8, - .reg_read = adda_reg_read, - .reg_write = adda_reg_write, - .fast_io = true, - .max_register = 24, -}; - /* mixer controls */ static const struct snd_kcontrol_new sun8i_codec_mixer_controls[] = { SOC_DAPM_DOUBLE_R("DAC Playback Switch", @@ -912,7 +839,7 @@ static int sun8i_codec_analog_probe(struct platform_device *pdev) return PTR_ERR(base); } - regmap = devm_regmap_init(&pdev->dev, NULL, base, &adda_pr_regmap_cfg); + regmap = sun8i_adda_pr_regmap_init(&pdev->dev, base); if (IS_ERR(regmap)) { dev_err(&pdev->dev, "Failed to create regmap\n"); return PTR_ERR(regmap); From af2c06c41970eb0110a03696fd7f8f07854719db Mon Sep 17 00:00:00 2001 From: Vasily Khoruzhick Date: Wed, 17 Oct 2018 00:38:08 -0700 Subject: [PATCH 1742/1762] ASoC: dt-binding: Add bindings for Allwinner A64 codec's analog path controls The internal codec on Allwinner A64 is split into 2 parts. The analog path controls are routed through an embedded custom register bus accessed through the PRCM block just as on A23/A33/H3. Add a binding for this hardware. Signed-off-by: Vasily Khoruzhick Acked-by: Maxime Ripard Signed-off-by: Mark Brown --- .../bindings/sound/sun50i-codec-analog.txt | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/sun50i-codec-analog.txt diff --git a/Documentation/devicetree/bindings/sound/sun50i-codec-analog.txt b/Documentation/devicetree/bindings/sound/sun50i-codec-analog.txt new file mode 100644 index 000000000000..4f8ad0e04d20 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/sun50i-codec-analog.txt @@ -0,0 +1,12 @@ +* Allwinner A64 Codec Analog Controls + +Required properties: +- compatible: must be one of the following compatibles: + - "allwinner,sun50i-a64-codec-analog" +- reg: must contain the registers location and length + +Example: + codec_analog: codec-analog@1f015c0 { + compatible = "allwinner,sun50i-a64-codec-analog"; + reg = <0x01f015c0 0x4>; + }; From 42371f327df0b8e9d479b929c5cd301846dd0f70 Mon Sep 17 00:00:00 2001 From: Vasily Khoruzhick Date: Wed, 17 Oct 2018 00:38:09 -0700 Subject: [PATCH 1743/1762] ASoC: sunxi: Add new driver for Allwinner A64 codec's analog path controls The internal codec on A64 is split into 2 parts. The analog path controls are routed through an embedded custom register bus accessed through the PRCM block. Add an ASoC component driver for it. This should be tied to the codec audio card as an auxiliary device. Signed-off-by: Vasily Khoruzhick Acked-by: Maxime Ripard Signed-off-by: Mark Brown --- sound/soc/sunxi/Kconfig | 8 + sound/soc/sunxi/Makefile | 1 + sound/soc/sunxi/sun50i-codec-analog.c | 444 ++++++++++++++++++++++++++ 3 files changed, 453 insertions(+) create mode 100644 sound/soc/sunxi/sun50i-codec-analog.c diff --git a/sound/soc/sunxi/Kconfig b/sound/soc/sunxi/Kconfig index 83b770cdfdaa..8a055ca1819a 100644 --- a/sound/soc/sunxi/Kconfig +++ b/sound/soc/sunxi/Kconfig @@ -28,6 +28,14 @@ config SND_SUN8I_CODEC_ANALOG Say Y or M if you want to add support for the analog controls for the codec embedded in newer Allwinner SoCs. +config SND_SUN50I_CODEC_ANALOG + tristate "Allwinner sun50i Codec Analog Controls Support" + depends on (ARM64 && ARCH_SUNXI) || COMPILE_TEST + select SND_SUNXI_ADDA_PR_REGMAP + help + Say Y or M if you want to add support for the analog controls for + the codec embedded in Allwinner A64 SoC. + config SND_SUN4I_I2S tristate "Allwinner A10 I2S Support" select SND_SOC_GENERIC_DMAENGINE_PCM diff --git a/sound/soc/sunxi/Makefile b/sound/soc/sunxi/Makefile index 74b99d55cfca..a86be340a076 100644 --- a/sound/soc/sunxi/Makefile +++ b/sound/soc/sunxi/Makefile @@ -3,5 +3,6 @@ obj-$(CONFIG_SND_SUN4I_CODEC) += sun4i-codec.o obj-$(CONFIG_SND_SUN4I_I2S) += sun4i-i2s.o obj-$(CONFIG_SND_SUN4I_SPDIF) += sun4i-spdif.o obj-$(CONFIG_SND_SUN8I_CODEC_ANALOG) += sun8i-codec-analog.o +obj-$(CONFIG_SND_SUN50I_CODEC_ANALOG) += sun50i-codec-analog.o obj-$(CONFIG_SND_SUN8I_CODEC) += sun8i-codec.o obj-$(CONFIG_SND_SUN8I_ADDA_PR_REGMAP) += sun8i-adda-pr-regmap.o diff --git a/sound/soc/sunxi/sun50i-codec-analog.c b/sound/soc/sunxi/sun50i-codec-analog.c new file mode 100644 index 000000000000..8f5f999df631 --- /dev/null +++ b/sound/soc/sunxi/sun50i-codec-analog.c @@ -0,0 +1,444 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * This driver supports the analog controls for the internal codec + * found in Allwinner's A64 SoC. + * + * Copyright (C) 2016 Chen-Yu Tsai + * Copyright (C) 2017 Marcus Cooper + * Copyright (C) 2018 Vasily Khoruzhick + * + * Based on sun8i-codec-analog.c + * + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "sun8i-adda-pr-regmap.h" + +/* Codec analog control register offsets and bit fields */ +#define SUN50I_ADDA_HP_CTRL 0x00 +#define SUN50I_ADDA_HP_CTRL_PA_CLK_GATE 7 +#define SUN50I_ADDA_HP_CTRL_HPPA_EN 6 +#define SUN50I_ADDA_HP_CTRL_HPVOL 0 + +#define SUN50I_ADDA_OL_MIX_CTRL 0x01 +#define SUN50I_ADDA_OL_MIX_CTRL_MIC1 6 +#define SUN50I_ADDA_OL_MIX_CTRL_MIC2 5 +#define SUN50I_ADDA_OL_MIX_CTRL_PHONE 4 +#define SUN50I_ADDA_OL_MIX_CTRL_PHONEN 3 +#define SUN50I_ADDA_OL_MIX_CTRL_LINEINL 2 +#define SUN50I_ADDA_OL_MIX_CTRL_DACL 1 +#define SUN50I_ADDA_OL_MIX_CTRL_DACR 0 + +#define SUN50I_ADDA_OR_MIX_CTRL 0x02 +#define SUN50I_ADDA_OR_MIX_CTRL_MIC1 6 +#define SUN50I_ADDA_OR_MIX_CTRL_MIC2 5 +#define SUN50I_ADDA_OR_MIX_CTRL_PHONE 4 +#define SUN50I_ADDA_OR_MIX_CTRL_PHONEP 3 +#define SUN50I_ADDA_OR_MIX_CTRL_LINEINR 2 +#define SUN50I_ADDA_OR_MIX_CTRL_DACR 1 +#define SUN50I_ADDA_OR_MIX_CTRL_DACL 0 + +#define SUN50I_ADDA_LINEOUT_CTRL0 0x05 +#define SUN50I_ADDA_LINEOUT_CTRL0_LEN 7 +#define SUN50I_ADDA_LINEOUT_CTRL0_REN 6 +#define SUN50I_ADDA_LINEOUT_CTRL0_LSRC_SEL 5 +#define SUN50I_ADDA_LINEOUT_CTRL0_RSRC_SEL 4 + +#define SUN50I_ADDA_LINEOUT_CTRL1 0x06 +#define SUN50I_ADDA_LINEOUT_CTRL1_VOL 0 + +#define SUN50I_ADDA_MIC1_CTRL 0x07 +#define SUN50I_ADDA_MIC1_CTRL_MIC1G 4 +#define SUN50I_ADDA_MIC1_CTRL_MIC1AMPEN 3 +#define SUN50I_ADDA_MIC1_CTRL_MIC1BOOST 0 + +#define SUN50I_ADDA_MIC2_CTRL 0x08 +#define SUN50I_ADDA_MIC2_CTRL_MIC2G 4 +#define SUN50I_ADDA_MIC2_CTRL_MIC2AMPEN 3 +#define SUN50I_ADDA_MIC2_CTRL_MIC2BOOST 0 + +#define SUN50I_ADDA_LINEIN_CTRL 0x09 +#define SUN50I_ADDA_LINEIN_CTRL_LINEING 0 + +#define SUN50I_ADDA_MIX_DAC_CTRL 0x0a +#define SUN50I_ADDA_MIX_DAC_CTRL_DACAREN 7 +#define SUN50I_ADDA_MIX_DAC_CTRL_DACALEN 6 +#define SUN50I_ADDA_MIX_DAC_CTRL_RMIXEN 5 +#define SUN50I_ADDA_MIX_DAC_CTRL_LMIXEN 4 +#define SUN50I_ADDA_MIX_DAC_CTRL_RHPPAMUTE 3 +#define SUN50I_ADDA_MIX_DAC_CTRL_LHPPAMUTE 2 +#define SUN50I_ADDA_MIX_DAC_CTRL_RHPIS 1 +#define SUN50I_ADDA_MIX_DAC_CTRL_LHPIS 0 + +#define SUN50I_ADDA_L_ADCMIX_SRC 0x0b +#define SUN50I_ADDA_L_ADCMIX_SRC_MIC1 6 +#define SUN50I_ADDA_L_ADCMIX_SRC_MIC2 5 +#define SUN50I_ADDA_L_ADCMIX_SRC_PHONE 4 +#define SUN50I_ADDA_L_ADCMIX_SRC_PHONEN 3 +#define SUN50I_ADDA_L_ADCMIX_SRC_LINEINL 2 +#define SUN50I_ADDA_L_ADCMIX_SRC_OMIXRL 1 +#define SUN50I_ADDA_L_ADCMIX_SRC_OMIXRR 0 + +#define SUN50I_ADDA_R_ADCMIX_SRC 0x0c +#define SUN50I_ADDA_R_ADCMIX_SRC_MIC1 6 +#define SUN50I_ADDA_R_ADCMIX_SRC_MIC2 5 +#define SUN50I_ADDA_R_ADCMIX_SRC_PHONE 4 +#define SUN50I_ADDA_R_ADCMIX_SRC_PHONEP 3 +#define SUN50I_ADDA_R_ADCMIX_SRC_LINEINR 2 +#define SUN50I_ADDA_R_ADCMIX_SRC_OMIXR 1 +#define SUN50I_ADDA_R_ADCMIX_SRC_OMIXL 0 + +#define SUN50I_ADDA_ADC_CTRL 0x0d +#define SUN50I_ADDA_ADC_CTRL_ADCREN 7 +#define SUN50I_ADDA_ADC_CTRL_ADCLEN 6 +#define SUN50I_ADDA_ADC_CTRL_ADCG 0 + +#define SUN50I_ADDA_HS_MBIAS_CTRL 0x0e +#define SUN50I_ADDA_HS_MBIAS_CTRL_MMICBIASEN 7 + +#define SUN50I_ADDA_JACK_MIC_CTRL 0x1d +#define SUN50I_ADDA_JACK_MIC_CTRL_HMICBIASEN 5 + +/* mixer controls */ +static const struct snd_kcontrol_new sun50i_a64_codec_mixer_controls[] = { + SOC_DAPM_DOUBLE_R("DAC Playback Switch", + SUN50I_ADDA_OL_MIX_CTRL, + SUN50I_ADDA_OR_MIX_CTRL, + SUN50I_ADDA_OL_MIX_CTRL_DACL, 1, 0), + SOC_DAPM_DOUBLE_R("DAC Reversed Playback Switch", + SUN50I_ADDA_OL_MIX_CTRL, + SUN50I_ADDA_OR_MIX_CTRL, + SUN50I_ADDA_OL_MIX_CTRL_DACR, 1, 0), + SOC_DAPM_DOUBLE_R("Line In Playback Switch", + SUN50I_ADDA_OL_MIX_CTRL, + SUN50I_ADDA_OR_MIX_CTRL, + SUN50I_ADDA_OL_MIX_CTRL_LINEINL, 1, 0), + SOC_DAPM_DOUBLE_R("Mic1 Playback Switch", + SUN50I_ADDA_OL_MIX_CTRL, + SUN50I_ADDA_OR_MIX_CTRL, + SUN50I_ADDA_OL_MIX_CTRL_MIC1, 1, 0), + SOC_DAPM_DOUBLE_R("Mic2 Playback Switch", + SUN50I_ADDA_OL_MIX_CTRL, + SUN50I_ADDA_OR_MIX_CTRL, + SUN50I_ADDA_OL_MIX_CTRL_MIC2, 1, 0), +}; + +/* ADC mixer controls */ +static const struct snd_kcontrol_new sun50i_codec_adc_mixer_controls[] = { + SOC_DAPM_DOUBLE_R("Mixer Capture Switch", + SUN50I_ADDA_L_ADCMIX_SRC, + SUN50I_ADDA_R_ADCMIX_SRC, + SUN50I_ADDA_L_ADCMIX_SRC_OMIXRL, 1, 0), + SOC_DAPM_DOUBLE_R("Mixer Reversed Capture Switch", + SUN50I_ADDA_L_ADCMIX_SRC, + SUN50I_ADDA_R_ADCMIX_SRC, + SUN50I_ADDA_L_ADCMIX_SRC_OMIXRR, 1, 0), + SOC_DAPM_DOUBLE_R("Line In Capture Switch", + SUN50I_ADDA_L_ADCMIX_SRC, + SUN50I_ADDA_R_ADCMIX_SRC, + SUN50I_ADDA_L_ADCMIX_SRC_LINEINL, 1, 0), + SOC_DAPM_DOUBLE_R("Mic1 Capture Switch", + SUN50I_ADDA_L_ADCMIX_SRC, + SUN50I_ADDA_R_ADCMIX_SRC, + SUN50I_ADDA_L_ADCMIX_SRC_MIC1, 1, 0), + SOC_DAPM_DOUBLE_R("Mic2 Capture Switch", + SUN50I_ADDA_L_ADCMIX_SRC, + SUN50I_ADDA_R_ADCMIX_SRC, + SUN50I_ADDA_L_ADCMIX_SRC_MIC2, 1, 0), +}; + +static const DECLARE_TLV_DB_SCALE(sun50i_codec_out_mixer_pregain_scale, + -450, 150, 0); +static const DECLARE_TLV_DB_RANGE(sun50i_codec_mic_gain_scale, + 0, 0, TLV_DB_SCALE_ITEM(0, 0, 0), + 1, 7, TLV_DB_SCALE_ITEM(2400, 300, 0), +); + +static const DECLARE_TLV_DB_SCALE(sun50i_codec_hp_vol_scale, -6300, 100, 1); + +static const DECLARE_TLV_DB_RANGE(sun50i_codec_lineout_vol_scale, + 0, 1, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1), + 2, 31, TLV_DB_SCALE_ITEM(-4350, 150, 0), +); + + +/* volume / mute controls */ +static const struct snd_kcontrol_new sun50i_a64_codec_controls[] = { + SOC_SINGLE_TLV("Headphone Playback Volume", + SUN50I_ADDA_HP_CTRL, + SUN50I_ADDA_HP_CTRL_HPVOL, 0x3f, 0, + sun50i_codec_hp_vol_scale), + + SOC_DOUBLE("Headphone Playback Switch", + SUN50I_ADDA_MIX_DAC_CTRL, + SUN50I_ADDA_MIX_DAC_CTRL_LHPPAMUTE, + SUN50I_ADDA_MIX_DAC_CTRL_RHPPAMUTE, 1, 0), + + /* Mixer pre-gain */ + SOC_SINGLE_TLV("Mic1 Playback Volume", SUN50I_ADDA_MIC1_CTRL, + SUN50I_ADDA_MIC1_CTRL_MIC1G, + 0x7, 0, sun50i_codec_out_mixer_pregain_scale), + + /* Microphone Amp boost gain */ + SOC_SINGLE_TLV("Mic1 Boost Volume", SUN50I_ADDA_MIC1_CTRL, + SUN50I_ADDA_MIC1_CTRL_MIC1BOOST, 0x7, 0, + sun50i_codec_mic_gain_scale), + + /* Mixer pre-gain */ + SOC_SINGLE_TLV("Mic2 Playback Volume", + SUN50I_ADDA_MIC2_CTRL, SUN50I_ADDA_MIC2_CTRL_MIC2G, + 0x7, 0, sun50i_codec_out_mixer_pregain_scale), + + /* Microphone Amp boost gain */ + SOC_SINGLE_TLV("Mic2 Boost Volume", SUN50I_ADDA_MIC2_CTRL, + SUN50I_ADDA_MIC2_CTRL_MIC2BOOST, 0x7, 0, + sun50i_codec_mic_gain_scale), + + /* ADC */ + SOC_SINGLE_TLV("ADC Gain Capture Volume", SUN50I_ADDA_ADC_CTRL, + SUN50I_ADDA_ADC_CTRL_ADCG, 0x7, 0, + sun50i_codec_out_mixer_pregain_scale), + + /* Mixer pre-gain */ + SOC_SINGLE_TLV("Line In Playback Volume", SUN50I_ADDA_LINEIN_CTRL, + SUN50I_ADDA_LINEIN_CTRL_LINEING, + 0x7, 0, sun50i_codec_out_mixer_pregain_scale), + + SOC_SINGLE_TLV("Line Out Playback Volume", + SUN50I_ADDA_LINEOUT_CTRL1, + SUN50I_ADDA_LINEOUT_CTRL1_VOL, 0x1f, 0, + sun50i_codec_lineout_vol_scale), + + SOC_DOUBLE("Line Out Playback Switch", + SUN50I_ADDA_LINEOUT_CTRL0, + SUN50I_ADDA_LINEOUT_CTRL0_LEN, + SUN50I_ADDA_LINEOUT_CTRL0_REN, 1, 0), + +}; + +static const char * const sun50i_codec_hp_src_enum_text[] = { + "DAC", "Mixer", +}; + +static SOC_ENUM_DOUBLE_DECL(sun50i_codec_hp_src_enum, + SUN50I_ADDA_MIX_DAC_CTRL, + SUN50I_ADDA_MIX_DAC_CTRL_LHPIS, + SUN50I_ADDA_MIX_DAC_CTRL_RHPIS, + sun50i_codec_hp_src_enum_text); + +static const struct snd_kcontrol_new sun50i_codec_hp_src[] = { + SOC_DAPM_ENUM("Headphone Source Playback Route", + sun50i_codec_hp_src_enum), +}; + +static const char * const sun50i_codec_lineout_src_enum_text[] = { + "Stereo", "Mono Differential", +}; + +static SOC_ENUM_DOUBLE_DECL(sun50i_codec_lineout_src_enum, + SUN50I_ADDA_LINEOUT_CTRL0, + SUN50I_ADDA_LINEOUT_CTRL0_LSRC_SEL, + SUN50I_ADDA_LINEOUT_CTRL0_RSRC_SEL, + sun50i_codec_lineout_src_enum_text); + +static const struct snd_kcontrol_new sun50i_codec_lineout_src[] = { + SOC_DAPM_ENUM("Line Out Source Playback Route", + sun50i_codec_lineout_src_enum), +}; + +static const struct snd_soc_dapm_widget sun50i_a64_codec_widgets[] = { + /* DAC */ + SND_SOC_DAPM_DAC("Left DAC", NULL, SUN50I_ADDA_MIX_DAC_CTRL, + SUN50I_ADDA_MIX_DAC_CTRL_DACALEN, 0), + SND_SOC_DAPM_DAC("Right DAC", NULL, SUN50I_ADDA_MIX_DAC_CTRL, + SUN50I_ADDA_MIX_DAC_CTRL_DACAREN, 0), + /* ADC */ + SND_SOC_DAPM_ADC("Left ADC", NULL, SUN50I_ADDA_ADC_CTRL, + SUN50I_ADDA_ADC_CTRL_ADCLEN, 0), + SND_SOC_DAPM_ADC("Right ADC", NULL, SUN50I_ADDA_ADC_CTRL, + SUN50I_ADDA_ADC_CTRL_ADCREN, 0), + /* + * Due to this component and the codec belonging to separate DAPM + * contexts, we need to manually link the above widgets to their + * stream widgets at the card level. + */ + + SND_SOC_DAPM_MUX("Headphone Source Playback Route", + SND_SOC_NOPM, 0, 0, sun50i_codec_hp_src), + SND_SOC_DAPM_OUT_DRV("Headphone Amp", SUN50I_ADDA_HP_CTRL, + SUN50I_ADDA_HP_CTRL_HPPA_EN, 0, NULL, 0), + SND_SOC_DAPM_OUTPUT("HP"), + + SND_SOC_DAPM_MUX("Line Out Source Playback Route", + SND_SOC_NOPM, 0, 0, sun50i_codec_lineout_src), + SND_SOC_DAPM_OUTPUT("LINEOUT"), + + /* Microphone inputs */ + SND_SOC_DAPM_INPUT("MIC1"), + + /* Microphone Bias */ + SND_SOC_DAPM_SUPPLY("MBIAS", SUN50I_ADDA_HS_MBIAS_CTRL, + SUN50I_ADDA_HS_MBIAS_CTRL_MMICBIASEN, + 0, NULL, 0), + + /* Mic input path */ + SND_SOC_DAPM_PGA("Mic1 Amplifier", SUN50I_ADDA_MIC1_CTRL, + SUN50I_ADDA_MIC1_CTRL_MIC1AMPEN, 0, NULL, 0), + + /* Microphone input */ + SND_SOC_DAPM_INPUT("MIC2"), + + /* Microphone Bias */ + SND_SOC_DAPM_SUPPLY("HBIAS", SUN50I_ADDA_JACK_MIC_CTRL, + SUN50I_ADDA_JACK_MIC_CTRL_HMICBIASEN, + 0, NULL, 0), + + /* Mic input path */ + SND_SOC_DAPM_PGA("Mic2 Amplifier", SUN50I_ADDA_MIC2_CTRL, + SUN50I_ADDA_MIC2_CTRL_MIC2AMPEN, 0, NULL, 0), + + /* Line input */ + SND_SOC_DAPM_INPUT("LINEIN"), + + /* Mixers */ + SND_SOC_DAPM_MIXER("Left Mixer", SUN50I_ADDA_MIX_DAC_CTRL, + SUN50I_ADDA_MIX_DAC_CTRL_LMIXEN, 0, + sun50i_a64_codec_mixer_controls, + ARRAY_SIZE(sun50i_a64_codec_mixer_controls)), + SND_SOC_DAPM_MIXER("Right Mixer", SUN50I_ADDA_MIX_DAC_CTRL, + SUN50I_ADDA_MIX_DAC_CTRL_RMIXEN, 0, + sun50i_a64_codec_mixer_controls, + ARRAY_SIZE(sun50i_a64_codec_mixer_controls)), + SND_SOC_DAPM_MIXER("Left ADC Mixer", SUN50I_ADDA_ADC_CTRL, + SUN50I_ADDA_ADC_CTRL_ADCLEN, 0, + sun50i_codec_adc_mixer_controls, + ARRAY_SIZE(sun50i_codec_adc_mixer_controls)), + SND_SOC_DAPM_MIXER("Right ADC Mixer", SUN50I_ADDA_ADC_CTRL, + SUN50I_ADDA_ADC_CTRL_ADCREN, 0, + sun50i_codec_adc_mixer_controls, + ARRAY_SIZE(sun50i_codec_adc_mixer_controls)), +}; + +static const struct snd_soc_dapm_route sun50i_a64_codec_routes[] = { + /* Left Mixer Routes */ + { "Left Mixer", "DAC Playback Switch", "Left DAC" }, + { "Left Mixer", "DAC Reversed Playback Switch", "Right DAC" }, + { "Left Mixer", "Mic1 Playback Switch", "Mic1 Amplifier" }, + + /* Right Mixer Routes */ + { "Right Mixer", "DAC Playback Switch", "Right DAC" }, + { "Right Mixer", "DAC Reversed Playback Switch", "Left DAC" }, + { "Right Mixer", "Mic1 Playback Switch", "Mic1 Amplifier" }, + + /* Left ADC Mixer Routes */ + { "Left ADC Mixer", "Mixer Capture Switch", "Left Mixer" }, + { "Left ADC Mixer", "Mixer Reversed Capture Switch", "Right Mixer" }, + { "Left ADC Mixer", "Mic1 Capture Switch", "Mic1 Amplifier" }, + + /* Right ADC Mixer Routes */ + { "Right ADC Mixer", "Mixer Capture Switch", "Right Mixer" }, + { "Right ADC Mixer", "Mixer Reversed Capture Switch", "Left Mixer" }, + { "Right ADC Mixer", "Mic1 Capture Switch", "Mic1 Amplifier" }, + + /* ADC Routes */ + { "Left ADC", NULL, "Left ADC Mixer" }, + { "Right ADC", NULL, "Right ADC Mixer" }, + + /* Headphone Routes */ + { "Headphone Source Playback Route", "DAC", "Left DAC" }, + { "Headphone Source Playback Route", "DAC", "Right DAC" }, + { "Headphone Source Playback Route", "Mixer", "Left Mixer" }, + { "Headphone Source Playback Route", "Mixer", "Right Mixer" }, + { "Headphone Amp", NULL, "Headphone Source Playback Route" }, + { "HP", NULL, "Headphone Amp" }, + + /* Microphone Routes */ + { "Mic1 Amplifier", NULL, "MIC1"}, + + /* Microphone Routes */ + { "Mic2 Amplifier", NULL, "MIC2"}, + { "Left Mixer", "Mic2 Playback Switch", "Mic2 Amplifier" }, + { "Right Mixer", "Mic2 Playback Switch", "Mic2 Amplifier" }, + { "Left ADC Mixer", "Mic2 Capture Switch", "Mic2 Amplifier" }, + { "Right ADC Mixer", "Mic2 Capture Switch", "Mic2 Amplifier" }, + + /* Line-in Routes */ + { "Left Mixer", "Line In Playback Switch", "LINEIN" }, + { "Right Mixer", "Line In Playback Switch", "LINEIN" }, + { "Left ADC Mixer", "Line In Capture Switch", "LINEIN" }, + { "Right ADC Mixer", "Line In Capture Switch", "LINEIN" }, + + /* Line-out Routes */ + { "Line Out Source Playback Route", "Stereo", "Left Mixer" }, + { "Line Out Source Playback Route", "Stereo", "Right Mixer" }, + { "Line Out Source Playback Route", "Mono Differential", "Left Mixer" }, + { "Line Out Source Playback Route", "Mono Differential", + "Right Mixer" }, + { "LINEOUT", NULL, "Line Out Source Playback Route" }, +}; + +static const struct snd_soc_component_driver sun50i_codec_analog_cmpnt_drv = { + .controls = sun50i_a64_codec_controls, + .num_controls = ARRAY_SIZE(sun50i_a64_codec_controls), + .dapm_widgets = sun50i_a64_codec_widgets, + .num_dapm_widgets = ARRAY_SIZE(sun50i_a64_codec_widgets), + .dapm_routes = sun50i_a64_codec_routes, + .num_dapm_routes = ARRAY_SIZE(sun50i_a64_codec_routes), +}; + +static const struct of_device_id sun50i_codec_analog_of_match[] = { + { + .compatible = "allwinner,sun50i-a64-codec-analog", + }, + {} +}; +MODULE_DEVICE_TABLE(of, sun50i_codec_analog_of_match); + +static int sun50i_codec_analog_probe(struct platform_device *pdev) +{ + struct resource *res; + struct regmap *regmap; + void __iomem *base; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(base)) { + dev_err(&pdev->dev, "Failed to map the registers\n"); + return PTR_ERR(base); + } + + regmap = sun8i_adda_pr_regmap_init(&pdev->dev, base); + if (IS_ERR(regmap)) { + dev_err(&pdev->dev, "Failed to create regmap\n"); + return PTR_ERR(regmap); + } + + return devm_snd_soc_register_component(&pdev->dev, + &sun50i_codec_analog_cmpnt_drv, + NULL, 0); +} + +static struct platform_driver sun50i_codec_analog_driver = { + .driver = { + .name = "sun50i-codec-analog", + .of_match_table = sun50i_codec_analog_of_match, + }, + .probe = sun50i_codec_analog_probe, +}; +module_platform_driver(sun50i_codec_analog_driver); + +MODULE_DESCRIPTION("Allwinner internal codec analog controls driver for A64"); +MODULE_AUTHOR("Vasily Khoruzhick "); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:sun50i-codec-analog"); From 7e95aac96b554193760aaeb64e263da58127bf27 Mon Sep 17 00:00:00 2001 From: Vasily Khoruzhick Date: Wed, 17 Oct 2018 00:38:10 -0700 Subject: [PATCH 1744/1762] ASoC: sunxi: allow the sun8i-codec driver to be built on ARM64 Allwinner A64 uses the same digital codec part as in A33, so we need to build this driver on ARM64 as well. Signed-off-by: Vasily Khoruzhick Acked-by: Maxime Ripard Signed-off-by: Mark Brown --- sound/soc/sunxi/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/sunxi/Kconfig b/sound/soc/sunxi/Kconfig index 8a055ca1819a..66aad0d3f9c7 100644 --- a/sound/soc/sunxi/Kconfig +++ b/sound/soc/sunxi/Kconfig @@ -12,7 +12,7 @@ config SND_SUN4I_CODEC config SND_SUN8I_CODEC tristate "Allwinner SUN8I audio codec" depends on OF - depends on MACH_SUN8I || COMPILE_TEST + depends on MACH_SUN8I || (ARM64 && ARCH_SUNXI) || COMPILE_TEST select REGMAP_MMIO help This option enables the digital part of the internal audio codec for From a85227da2dcc291b762c8482a505bc7d0d2d4b07 Mon Sep 17 00:00:00 2001 From: Marcel Ziswiler Date: Tue, 16 Oct 2018 12:47:29 +0200 Subject: [PATCH 1745/1762] ASoC: tegra_sgtl5000: fix device_node refcounting Similar to the following: commit 4321723648b0 ("ASoC: tegra_alc5632: fix device_node refcounting") commit 7c5dfd549617 ("ASoC: tegra: fix device_node refcounting") Signed-off-by: Marcel Ziswiler Acked-by: Jon Hunter Signed-off-by: Mark Brown --- sound/soc/tegra/tegra_sgtl5000.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/sound/soc/tegra/tegra_sgtl5000.c b/sound/soc/tegra/tegra_sgtl5000.c index 45a4aa9d2a47..901457da25ec 100644 --- a/sound/soc/tegra/tegra_sgtl5000.c +++ b/sound/soc/tegra/tegra_sgtl5000.c @@ -149,14 +149,14 @@ static int tegra_sgtl5000_driver_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Property 'nvidia,i2s-controller' missing/invalid\n"); ret = -EINVAL; - goto err; + goto err_put_codec_of_node; } tegra_sgtl5000_dai.platform_of_node = tegra_sgtl5000_dai.cpu_of_node; ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev); if (ret) - goto err; + goto err_put_cpu_of_node; ret = snd_soc_register_card(card); if (ret) { @@ -169,6 +169,13 @@ static int tegra_sgtl5000_driver_probe(struct platform_device *pdev) err_fini_utils: tegra_asoc_utils_fini(&machine->util_data); +err_put_cpu_of_node: + of_node_put(tegra_sgtl5000_dai.cpu_of_node); + tegra_sgtl5000_dai.cpu_of_node = NULL; + tegra_sgtl5000_dai.platform_of_node = NULL; +err_put_codec_of_node: + of_node_put(tegra_sgtl5000_dai.codec_of_node); + tegra_sgtl5000_dai.codec_of_node = NULL; err: return ret; } @@ -183,6 +190,12 @@ static int tegra_sgtl5000_driver_remove(struct platform_device *pdev) tegra_asoc_utils_fini(&machine->util_data); + of_node_put(tegra_sgtl5000_dai.cpu_of_node); + tegra_sgtl5000_dai.cpu_of_node = NULL; + tegra_sgtl5000_dai.platform_of_node = NULL; + of_node_put(tegra_sgtl5000_dai.codec_of_node); + tegra_sgtl5000_dai.codec_of_node = NULL; + return ret; } From 1e3cb6c321be2e5295dcaa94c2bf42a43a47a067 Mon Sep 17 00:00:00 2001 From: David Lin Date: Fri, 28 Sep 2018 11:10:04 +0800 Subject: [PATCH 1746/1762] ASoC: nau8822: new codec driver Add driver for NAU88C22. Signed-off-by: David Lin Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/nau8822.txt | 16 + sound/soc/codecs/Kconfig | 5 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/nau8822.c | 1136 +++++++++++++++++ sound/soc/codecs/nau8822.h | 204 +++ 5 files changed, 1363 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/nau8822.txt create mode 100644 sound/soc/codecs/nau8822.c create mode 100644 sound/soc/codecs/nau8822.h diff --git a/Documentation/devicetree/bindings/sound/nau8822.txt b/Documentation/devicetree/bindings/sound/nau8822.txt new file mode 100644 index 000000000000..a471d162d4e5 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/nau8822.txt @@ -0,0 +1,16 @@ +NAU8822 audio CODEC + +This device supports I2C only. + +Required properties: + + - compatible : "nuvoton,nau8822" + + - reg : the I2C address of the device. + +Example: + +codec: nau8822@1a { + compatible = "nuvoton,nau8822"; + reg = <0x1a>; +}; diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 774d38310875..9cc4f1848c9b 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -110,6 +110,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_MT6351 if MTK_PMIC_WRAP select SND_SOC_NAU8540 if I2C select SND_SOC_NAU8810 if I2C + select SND_SOC_NAU8822 if I2C select SND_SOC_NAU8824 if I2C select SND_SOC_NAU8825 if I2C select SND_SOC_HDMI_CODEC @@ -1326,6 +1327,10 @@ config SND_SOC_NAU8810 tristate "Nuvoton Technology Corporation NAU88C10 CODEC" depends on I2C +config SND_SOC_NAU8822 + tristate "Nuvoton Technology Corporation NAU88C22 CODEC" + depends on I2C + config SND_SOC_NAU8824 tristate "Nuvoton Technology Corporation NAU88L24 CODEC" depends on I2C diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 3d694c26192c..8ffab8c8dbfa 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -107,6 +107,7 @@ snd-soc-msm8916-digital-objs := msm8916-wcd-digital.o snd-soc-mt6351-objs := mt6351.o snd-soc-nau8540-objs := nau8540.o snd-soc-nau8810-objs := nau8810.o +snd-soc-nau8822-objs := nau8822.o snd-soc-nau8824-objs := nau8824.o snd-soc-nau8825-objs := nau8825.o snd-soc-hdmi-codec-objs := hdmi-codec.o @@ -371,6 +372,7 @@ obj-$(CONFIG_SND_SOC_MSM8916_WCD_DIGITAL) +=snd-soc-msm8916-digital.o obj-$(CONFIG_SND_SOC_MT6351) += snd-soc-mt6351.o obj-$(CONFIG_SND_SOC_NAU8540) += snd-soc-nau8540.o obj-$(CONFIG_SND_SOC_NAU8810) += snd-soc-nau8810.o +obj-$(CONFIG_SND_SOC_NAU8822) += snd-soc-nau8822.o obj-$(CONFIG_SND_SOC_NAU8824) += snd-soc-nau8824.o obj-$(CONFIG_SND_SOC_NAU8825) += snd-soc-nau8825.o obj-$(CONFIG_SND_SOC_HDMI_CODEC) += snd-soc-hdmi-codec.o diff --git a/sound/soc/codecs/nau8822.c b/sound/soc/codecs/nau8822.c new file mode 100644 index 000000000000..622ce947f134 --- /dev/null +++ b/sound/soc/codecs/nau8822.c @@ -0,0 +1,1136 @@ +/* + * nau8822.c -- NAU8822 ALSA Soc Audio Codec driver + * + * Copyright 2017 Nuvoton Technology Corp. + * + * Author: David Lin + * Co-author: John Hsu + * Co-author: Seven Li + * + * Based on WM8974.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "nau8822.h" + +#define NAU_PLL_FREQ_MAX 100000000 +#define NAU_PLL_FREQ_MIN 90000000 +#define NAU_PLL_REF_MAX 33000000 +#define NAU_PLL_REF_MIN 8000000 +#define NAU_PLL_OPTOP_MIN 6 + +static const int nau8822_mclk_scaler[] = { 10, 15, 20, 30, 40, 60, 80, 120 }; + +static const struct reg_default nau8822_reg_defaults[] = { + { NAU8822_REG_POWER_MANAGEMENT_1, 0x0000 }, + { NAU8822_REG_POWER_MANAGEMENT_2, 0x0000 }, + { NAU8822_REG_POWER_MANAGEMENT_3, 0x0000 }, + { NAU8822_REG_AUDIO_INTERFACE, 0x0050 }, + { NAU8822_REG_COMPANDING_CONTROL, 0x0000 }, + { NAU8822_REG_CLOCKING, 0x0140 }, + { NAU8822_REG_ADDITIONAL_CONTROL, 0x0000 }, + { NAU8822_REG_GPIO_CONTROL, 0x0000 }, + { NAU8822_REG_JACK_DETECT_CONTROL_1, 0x0000 }, + { NAU8822_REG_DAC_CONTROL, 0x0000 }, + { NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME, 0x00ff }, + { NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME, 0x00ff }, + { NAU8822_REG_JACK_DETECT_CONTROL_2, 0x0000 }, + { NAU8822_REG_ADC_CONTROL, 0x0100 }, + { NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME, 0x00ff }, + { NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME, 0x00ff }, + { NAU8822_REG_EQ1, 0x012c }, + { NAU8822_REG_EQ2, 0x002c }, + { NAU8822_REG_EQ3, 0x002c }, + { NAU8822_REG_EQ4, 0x002c }, + { NAU8822_REG_EQ5, 0x002c }, + { NAU8822_REG_DAC_LIMITER_1, 0x0032 }, + { NAU8822_REG_DAC_LIMITER_2, 0x0000 }, + { NAU8822_REG_NOTCH_FILTER_1, 0x0000 }, + { NAU8822_REG_NOTCH_FILTER_2, 0x0000 }, + { NAU8822_REG_NOTCH_FILTER_3, 0x0000 }, + { NAU8822_REG_NOTCH_FILTER_4, 0x0000 }, + { NAU8822_REG_ALC_CONTROL_1, 0x0038 }, + { NAU8822_REG_ALC_CONTROL_2, 0x000b }, + { NAU8822_REG_ALC_CONTROL_3, 0x0032 }, + { NAU8822_REG_NOISE_GATE, 0x0010 }, + { NAU8822_REG_PLL_N, 0x0008 }, + { NAU8822_REG_PLL_K1, 0x000c }, + { NAU8822_REG_PLL_K2, 0x0093 }, + { NAU8822_REG_PLL_K3, 0x00e9 }, + { NAU8822_REG_3D_CONTROL, 0x0000 }, + { NAU8822_REG_RIGHT_SPEAKER_CONTROL, 0x0000 }, + { NAU8822_REG_INPUT_CONTROL, 0x0033 }, + { NAU8822_REG_LEFT_INP_PGA_CONTROL, 0x0010 }, + { NAU8822_REG_RIGHT_INP_PGA_CONTROL, 0x0010 }, + { NAU8822_REG_LEFT_ADC_BOOST_CONTROL, 0x0100 }, + { NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 0x0100 }, + { NAU8822_REG_OUTPUT_CONTROL, 0x0002 }, + { NAU8822_REG_LEFT_MIXER_CONTROL, 0x0001 }, + { NAU8822_REG_RIGHT_MIXER_CONTROL, 0x0001 }, + { NAU8822_REG_LHP_VOLUME, 0x0039 }, + { NAU8822_REG_RHP_VOLUME, 0x0039 }, + { NAU8822_REG_LSPKOUT_VOLUME, 0x0039 }, + { NAU8822_REG_RSPKOUT_VOLUME, 0x0039 }, + { NAU8822_REG_AUX2_MIXER, 0x0001 }, + { NAU8822_REG_AUX1_MIXER, 0x0001 }, + { NAU8822_REG_POWER_MANAGEMENT_4, 0x0000 }, + { NAU8822_REG_LEFT_TIME_SLOT, 0x0000 }, + { NAU8822_REG_MISC, 0x0020 }, + { NAU8822_REG_RIGHT_TIME_SLOT, 0x0000 }, + { NAU8822_REG_DEVICE_REVISION, 0x007f }, + { NAU8822_REG_DEVICE_ID, 0x001a }, + { NAU8822_REG_DAC_DITHER, 0x0114 }, + { NAU8822_REG_ALC_ENHANCE_1, 0x0000 }, + { NAU8822_REG_ALC_ENHANCE_2, 0x0000 }, + { NAU8822_REG_192KHZ_SAMPLING, 0x0008 }, + { NAU8822_REG_MISC_CONTROL, 0x0000 }, + { NAU8822_REG_INPUT_TIEOFF, 0x0000 }, + { NAU8822_REG_POWER_REDUCTION, 0x0000 }, + { NAU8822_REG_AGC_PEAK2PEAK, 0x0000 }, + { NAU8822_REG_AGC_PEAK_DETECT, 0x0000 }, + { NAU8822_REG_AUTOMUTE_CONTROL, 0x0000 }, + { NAU8822_REG_OUTPUT_TIEOFF, 0x0000 }, +}; + +static bool nau8822_readable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case NAU8822_REG_RESET ... NAU8822_REG_JACK_DETECT_CONTROL_1: + case NAU8822_REG_DAC_CONTROL ... NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME: + case NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME: + case NAU8822_REG_EQ1 ... NAU8822_REG_EQ5: + case NAU8822_REG_DAC_LIMITER_1 ... NAU8822_REG_DAC_LIMITER_2: + case NAU8822_REG_NOTCH_FILTER_1 ... NAU8822_REG_NOTCH_FILTER_4: + case NAU8822_REG_ALC_CONTROL_1 ...NAU8822_REG_PLL_K3: + case NAU8822_REG_3D_CONTROL: + case NAU8822_REG_RIGHT_SPEAKER_CONTROL: + case NAU8822_REG_INPUT_CONTROL ... NAU8822_REG_LEFT_ADC_BOOST_CONTROL: + case NAU8822_REG_RIGHT_ADC_BOOST_CONTROL ... NAU8822_REG_AUX1_MIXER: + case NAU8822_REG_POWER_MANAGEMENT_4 ... NAU8822_REG_DEVICE_ID: + case NAU8822_REG_DAC_DITHER: + case NAU8822_REG_ALC_ENHANCE_1 ... NAU8822_REG_MISC_CONTROL: + case NAU8822_REG_INPUT_TIEOFF ... NAU8822_REG_OUTPUT_TIEOFF: + return true; + default: + return false; + } +} + +static bool nau8822_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case NAU8822_REG_RESET ... NAU8822_REG_JACK_DETECT_CONTROL_1: + case NAU8822_REG_DAC_CONTROL ... NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME: + case NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME: + case NAU8822_REG_EQ1 ... NAU8822_REG_EQ5: + case NAU8822_REG_DAC_LIMITER_1 ... NAU8822_REG_DAC_LIMITER_2: + case NAU8822_REG_NOTCH_FILTER_1 ... NAU8822_REG_NOTCH_FILTER_4: + case NAU8822_REG_ALC_CONTROL_1 ...NAU8822_REG_PLL_K3: + case NAU8822_REG_3D_CONTROL: + case NAU8822_REG_RIGHT_SPEAKER_CONTROL: + case NAU8822_REG_INPUT_CONTROL ... NAU8822_REG_LEFT_ADC_BOOST_CONTROL: + case NAU8822_REG_RIGHT_ADC_BOOST_CONTROL ... NAU8822_REG_AUX1_MIXER: + case NAU8822_REG_POWER_MANAGEMENT_4 ... NAU8822_REG_DEVICE_ID: + case NAU8822_REG_DAC_DITHER: + case NAU8822_REG_ALC_ENHANCE_1 ... NAU8822_REG_MISC_CONTROL: + case NAU8822_REG_INPUT_TIEOFF ... NAU8822_REG_OUTPUT_TIEOFF: + return true; + default: + return false; + } +} + +static bool nau8822_volatile(struct device *dev, unsigned int reg) +{ + switch (reg) { + case NAU8822_REG_RESET: + case NAU8822_REG_DEVICE_REVISION: + case NAU8822_REG_DEVICE_ID: + case NAU8822_REG_AGC_PEAK2PEAK: + case NAU8822_REG_AGC_PEAK_DETECT: + case NAU8822_REG_AUTOMUTE_CONTROL: + return true; + default: + return false; + } +} + +/* The EQ parameters get function is to get the 5 band equalizer control. + * The regmap raw read can't work here because regmap doesn't provide + * value format for value width of 9 bits. Therefore, the driver reads data + * from cache and makes value format according to the endianness of + * bytes type control element. + */ +static int nau8822_eq_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = + snd_soc_kcontrol_component(kcontrol); + struct soc_bytes_ext *params = (void *)kcontrol->private_value; + int i, reg; + u16 reg_val, *val; + + val = (u16 *)ucontrol->value.bytes.data; + reg = NAU8822_REG_EQ1; + for (i = 0; i < params->max / sizeof(u16); i++) { + reg_val = snd_soc_component_read32(component, reg + i); + /* conversion of 16-bit integers between native CPU format + * and big endian format + */ + reg_val = cpu_to_be16(reg_val); + memcpy(val + i, ®_val, sizeof(reg_val)); + } + + return 0; +} + +/* The EQ parameters put function is to make configuration of 5 band equalizer + * control. These configuration includes central frequency, equalizer gain, + * cut-off frequency, bandwidth control, and equalizer path. + * The regmap raw write can't work here because regmap doesn't provide + * register and value format for register with address 7 bits and value 9 bits. + * Therefore, the driver makes value format according to the endianness of + * bytes type control element and writes data to codec. + */ +static int nau8822_eq_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = + snd_soc_kcontrol_component(kcontrol); + struct soc_bytes_ext *params = (void *)kcontrol->private_value; + void *data; + u16 *val, value; + int i, reg, ret; + + data = kmemdup(ucontrol->value.bytes.data, + params->max, GFP_KERNEL | GFP_DMA); + if (!data) + return -ENOMEM; + + val = (u16 *)data; + reg = NAU8822_REG_EQ1; + for (i = 0; i < params->max / sizeof(u16); i++) { + /* conversion of 16-bit integers between native CPU format + * and big endian format + */ + value = be16_to_cpu(*(val + i)); + ret = snd_soc_component_write(component, reg + i, value); + if (ret) { + dev_err(component->dev, + "EQ configuration fail, register: %x ret: %d\n", + reg + i, ret); + kfree(data); + return ret; + } + } + kfree(data); + + return 0; +} + +static const char * const nau8822_companding[] = { + "Off", "NC", "u-law", "A-law"}; + +static const struct soc_enum nau8822_companding_adc_enum = + SOC_ENUM_SINGLE(NAU8822_REG_COMPANDING_CONTROL, NAU8822_ADCCM_SFT, + ARRAY_SIZE(nau8822_companding), nau8822_companding); + +static const struct soc_enum nau8822_companding_dac_enum = + SOC_ENUM_SINGLE(NAU8822_REG_COMPANDING_CONTROL, NAU8822_DACCM_SFT, + ARRAY_SIZE(nau8822_companding), nau8822_companding); + +static const char * const nau8822_eqmode[] = {"Capture", "Playback"}; + +static const struct soc_enum nau8822_eqmode_enum = + SOC_ENUM_SINGLE(NAU8822_REG_EQ1, NAU8822_EQM_SFT, + ARRAY_SIZE(nau8822_eqmode), nau8822_eqmode); + +static const char * const nau8822_alc1[] = {"Off", "Right", "Left", "Both"}; +static const char * const nau8822_alc3[] = {"Normal", "Limiter"}; + +static const struct soc_enum nau8822_alc_enable_enum = + SOC_ENUM_SINGLE(NAU8822_REG_ALC_CONTROL_1, NAU8822_ALCEN_SFT, + ARRAY_SIZE(nau8822_alc1), nau8822_alc1); + +static const struct soc_enum nau8822_alc_mode_enum = + SOC_ENUM_SINGLE(NAU8822_REG_ALC_CONTROL_3, NAU8822_ALCM_SFT, + ARRAY_SIZE(nau8822_alc3), nau8822_alc3); + +static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1); +static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0); +static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0); +static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0); +static const DECLARE_TLV_DB_SCALE(boost_tlv, -1500, 300, 1); +static const DECLARE_TLV_DB_SCALE(limiter_tlv, 0, 100, 0); + +static const struct snd_kcontrol_new nau8822_snd_controls[] = { + SOC_ENUM("ADC Companding", nau8822_companding_adc_enum), + SOC_ENUM("DAC Companding", nau8822_companding_dac_enum), + + SOC_ENUM("EQ Function", nau8822_eqmode_enum), + SND_SOC_BYTES_EXT("EQ Parameters", 10, + nau8822_eq_get, nau8822_eq_put), + + SOC_DOUBLE("DAC Inversion Switch", + NAU8822_REG_DAC_CONTROL, 0, 1, 1, 0), + SOC_DOUBLE_R_TLV("PCM Volume", + NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME, + NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME, 0, 255, 0, digital_tlv), + + SOC_SINGLE("High Pass Filter Switch", + NAU8822_REG_ADC_CONTROL, 8, 1, 0), + SOC_SINGLE("High Pass Cut Off", + NAU8822_REG_ADC_CONTROL, 4, 7, 0), + + SOC_DOUBLE("ADC Inversion Switch", + NAU8822_REG_ADC_CONTROL, 0, 1, 1, 0), + SOC_DOUBLE_R_TLV("ADC Volume", + NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME, + NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME, 0, 255, 0, digital_tlv), + + SOC_SINGLE("DAC Limiter Switch", + NAU8822_REG_DAC_LIMITER_1, 8, 1, 0), + SOC_SINGLE("DAC Limiter Decay", + NAU8822_REG_DAC_LIMITER_1, 4, 15, 0), + SOC_SINGLE("DAC Limiter Attack", + NAU8822_REG_DAC_LIMITER_1, 0, 15, 0), + SOC_SINGLE("DAC Limiter Threshold", + NAU8822_REG_DAC_LIMITER_2, 4, 7, 0), + SOC_SINGLE_TLV("DAC Limiter Volume", + NAU8822_REG_DAC_LIMITER_2, 0, 12, 0, limiter_tlv), + + SOC_ENUM("ALC Mode", nau8822_alc_mode_enum), + SOC_ENUM("ALC Enable Switch", nau8822_alc_enable_enum), + SOC_SINGLE("ALC Min Gain", + NAU8822_REG_ALC_CONTROL_1, 0, 7, 0), + SOC_SINGLE("ALC Max Gain", + NAU8822_REG_ALC_CONTROL_1, 3, 7, 0), + SOC_SINGLE("ALC Hold", + NAU8822_REG_ALC_CONTROL_2, 4, 10, 0), + SOC_SINGLE("ALC Target", + NAU8822_REG_ALC_CONTROL_2, 0, 15, 0), + SOC_SINGLE("ALC Decay", + NAU8822_REG_ALC_CONTROL_3, 4, 10, 0), + SOC_SINGLE("ALC Attack", + NAU8822_REG_ALC_CONTROL_3, 0, 10, 0), + SOC_SINGLE("ALC Noise Gate Switch", + NAU8822_REG_NOISE_GATE, 3, 1, 0), + SOC_SINGLE("ALC Noise Gate Threshold", + NAU8822_REG_NOISE_GATE, 0, 7, 0), + + SOC_DOUBLE_R("PGA ZC Switch", + NAU8822_REG_LEFT_INP_PGA_CONTROL, + NAU8822_REG_RIGHT_INP_PGA_CONTROL, + 7, 1, 0), + SOC_DOUBLE_R_TLV("PGA Volume", + NAU8822_REG_LEFT_INP_PGA_CONTROL, + NAU8822_REG_RIGHT_INP_PGA_CONTROL, 0, 63, 0, inpga_tlv), + + SOC_DOUBLE_R("Headphone ZC Switch", + NAU8822_REG_LHP_VOLUME, + NAU8822_REG_RHP_VOLUME, 7, 1, 0), + SOC_DOUBLE_R("Headphone Playback Switch", + NAU8822_REG_LHP_VOLUME, + NAU8822_REG_RHP_VOLUME, 6, 1, 1), + SOC_DOUBLE_R_TLV("Headphone Volume", + NAU8822_REG_LHP_VOLUME, + NAU8822_REG_RHP_VOLUME, 0, 63, 0, spk_tlv), + + SOC_DOUBLE_R("Speaker ZC Switch", + NAU8822_REG_LSPKOUT_VOLUME, + NAU8822_REG_RSPKOUT_VOLUME, 7, 1, 0), + SOC_DOUBLE_R("Speaker Playback Switch", + NAU8822_REG_LSPKOUT_VOLUME, + NAU8822_REG_RSPKOUT_VOLUME, 6, 1, 1), + SOC_DOUBLE_R_TLV("Speaker Volume", + NAU8822_REG_LSPKOUT_VOLUME, + NAU8822_REG_RSPKOUT_VOLUME, 0, 63, 0, spk_tlv), + + SOC_DOUBLE_R("AUXOUT Playback Switch", + NAU8822_REG_AUX2_MIXER, + NAU8822_REG_AUX1_MIXER, 6, 1, 1), + + SOC_DOUBLE_R_TLV("PGA Boost Volume", + NAU8822_REG_LEFT_ADC_BOOST_CONTROL, + NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 8, 1, 0, pga_boost_tlv), + SOC_DOUBLE_R_TLV("L2/R2 Boost Volume", + NAU8822_REG_LEFT_ADC_BOOST_CONTROL, + NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 4, 7, 0, boost_tlv), + SOC_DOUBLE_R_TLV("Aux Boost Volume", + NAU8822_REG_LEFT_ADC_BOOST_CONTROL, + NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 0, 7, 0, boost_tlv), + + SOC_SINGLE("DAC 128x Oversampling Switch", + NAU8822_REG_DAC_CONTROL, 5, 1, 0), + SOC_SINGLE("ADC 128x Oversampling Switch", + NAU8822_REG_ADC_CONTROL, 5, 1, 0), +}; + +/* LMAIN and RMAIN Mixer */ +static const struct snd_kcontrol_new nau8822_left_out_mixer[] = { + SOC_DAPM_SINGLE("LINMIX Switch", + NAU8822_REG_LEFT_MIXER_CONTROL, 1, 1, 0), + SOC_DAPM_SINGLE("LAUX Switch", + NAU8822_REG_LEFT_MIXER_CONTROL, 5, 1, 0), + SOC_DAPM_SINGLE("LDAC Switch", + NAU8822_REG_LEFT_MIXER_CONTROL, 0, 1, 0), + SOC_DAPM_SINGLE("RDAC Switch", + NAU8822_REG_OUTPUT_CONTROL, 5, 1, 0), +}; + +static const struct snd_kcontrol_new nau8822_right_out_mixer[] = { + SOC_DAPM_SINGLE("RINMIX Switch", + NAU8822_REG_RIGHT_MIXER_CONTROL, 1, 1, 0), + SOC_DAPM_SINGLE("RAUX Switch", + NAU8822_REG_RIGHT_MIXER_CONTROL, 5, 1, 0), + SOC_DAPM_SINGLE("RDAC Switch", + NAU8822_REG_RIGHT_MIXER_CONTROL, 0, 1, 0), + SOC_DAPM_SINGLE("LDAC Switch", + NAU8822_REG_OUTPUT_CONTROL, 6, 1, 0), +}; + +/* AUX1 and AUX2 Mixer */ +static const struct snd_kcontrol_new nau8822_auxout1_mixer[] = { + SOC_DAPM_SINGLE("RDAC Switch", NAU8822_REG_AUX1_MIXER, 0, 1, 0), + SOC_DAPM_SINGLE("RMIX Switch", NAU8822_REG_AUX1_MIXER, 1, 1, 0), + SOC_DAPM_SINGLE("RINMIX Switch", NAU8822_REG_AUX1_MIXER, 2, 1, 0), + SOC_DAPM_SINGLE("LDAC Switch", NAU8822_REG_AUX1_MIXER, 3, 1, 0), + SOC_DAPM_SINGLE("LMIX Switch", NAU8822_REG_AUX1_MIXER, 4, 1, 0), +}; + +static const struct snd_kcontrol_new nau8822_auxout2_mixer[] = { + SOC_DAPM_SINGLE("LDAC Switch", NAU8822_REG_AUX2_MIXER, 0, 1, 0), + SOC_DAPM_SINGLE("LMIX Switch", NAU8822_REG_AUX2_MIXER, 1, 1, 0), + SOC_DAPM_SINGLE("LINMIX Switch", NAU8822_REG_AUX2_MIXER, 2, 1, 0), + SOC_DAPM_SINGLE("AUX1MIX Output Switch", + NAU8822_REG_AUX2_MIXER, 3, 1, 0), +}; + +/* Input PGA */ +static const struct snd_kcontrol_new nau8822_left_input_mixer[] = { + SOC_DAPM_SINGLE("L2 Switch", NAU8822_REG_INPUT_CONTROL, 2, 1, 0), + SOC_DAPM_SINGLE("MicN Switch", NAU8822_REG_INPUT_CONTROL, 1, 1, 0), + SOC_DAPM_SINGLE("MicP Switch", NAU8822_REG_INPUT_CONTROL, 0, 1, 0), +}; +static const struct snd_kcontrol_new nau8822_right_input_mixer[] = { + SOC_DAPM_SINGLE("R2 Switch", NAU8822_REG_INPUT_CONTROL, 6, 1, 0), + SOC_DAPM_SINGLE("MicN Switch", NAU8822_REG_INPUT_CONTROL, 5, 1, 0), + SOC_DAPM_SINGLE("MicP Switch", NAU8822_REG_INPUT_CONTROL, 4, 1, 0), +}; + +/* Loopback Switch */ +static const struct snd_kcontrol_new nau8822_loopback = + SOC_DAPM_SINGLE("Switch", NAU8822_REG_COMPANDING_CONTROL, + NAU8822_ADDAP_SFT, 1, 0); + +static int check_mclk_select_pll(struct snd_soc_dapm_widget *source, + struct snd_soc_dapm_widget *sink) +{ + struct snd_soc_component *component = + snd_soc_dapm_to_component(source->dapm); + unsigned int value; + + value = snd_soc_component_read32(component, NAU8822_REG_CLOCKING); + + return (value & NAU8822_CLKM_MASK); +} + +static const struct snd_soc_dapm_widget nau8822_dapm_widgets[] = { + SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", + NAU8822_REG_POWER_MANAGEMENT_3, 0, 0), + SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", + NAU8822_REG_POWER_MANAGEMENT_3, 1, 0), + SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", + NAU8822_REG_POWER_MANAGEMENT_2, 0, 0), + SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", + NAU8822_REG_POWER_MANAGEMENT_2, 1, 0), + + SOC_MIXER_ARRAY("Left Output Mixer", + NAU8822_REG_POWER_MANAGEMENT_3, 2, 0, nau8822_left_out_mixer), + SOC_MIXER_ARRAY("Right Output Mixer", + NAU8822_REG_POWER_MANAGEMENT_3, 3, 0, nau8822_right_out_mixer), + SOC_MIXER_ARRAY("AUX1 Output Mixer", + NAU8822_REG_POWER_MANAGEMENT_1, 7, 0, nau8822_auxout1_mixer), + SOC_MIXER_ARRAY("AUX2 Output Mixer", + NAU8822_REG_POWER_MANAGEMENT_1, 6, 0, nau8822_auxout2_mixer), + + SOC_MIXER_ARRAY("Left Input Mixer", + NAU8822_REG_POWER_MANAGEMENT_2, + 2, 0, nau8822_left_input_mixer), + SOC_MIXER_ARRAY("Right Input Mixer", + NAU8822_REG_POWER_MANAGEMENT_2, + 3, 0, nau8822_right_input_mixer), + + SND_SOC_DAPM_PGA("Left Boost Mixer", + NAU8822_REG_POWER_MANAGEMENT_2, 4, 0, NULL, 0), + SND_SOC_DAPM_PGA("Right Boost Mixer", + NAU8822_REG_POWER_MANAGEMENT_2, 5, 0, NULL, 0), + + SND_SOC_DAPM_PGA("Left Capture PGA", + NAU8822_REG_LEFT_INP_PGA_CONTROL, 6, 1, NULL, 0), + SND_SOC_DAPM_PGA("Right Capture PGA", + NAU8822_REG_RIGHT_INP_PGA_CONTROL, 6, 1, NULL, 0), + + SND_SOC_DAPM_PGA("Left Headphone Out", + NAU8822_REG_POWER_MANAGEMENT_2, 7, 0, NULL, 0), + SND_SOC_DAPM_PGA("Right Headphone Out", + NAU8822_REG_POWER_MANAGEMENT_2, 8, 0, NULL, 0), + + SND_SOC_DAPM_PGA("Left Speaker Out", + NAU8822_REG_POWER_MANAGEMENT_3, 6, 0, NULL, 0), + SND_SOC_DAPM_PGA("Right Speaker Out", + NAU8822_REG_POWER_MANAGEMENT_3, 5, 0, NULL, 0), + + SND_SOC_DAPM_PGA("AUX1 Out", + NAU8822_REG_POWER_MANAGEMENT_3, 8, 0, NULL, 0), + SND_SOC_DAPM_PGA("AUX2 Out", + NAU8822_REG_POWER_MANAGEMENT_3, 7, 0, NULL, 0), + + SND_SOC_DAPM_SUPPLY("Mic Bias", + NAU8822_REG_POWER_MANAGEMENT_1, 4, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("PLL", + NAU8822_REG_POWER_MANAGEMENT_1, 5, 0, NULL, 0), + + SND_SOC_DAPM_SWITCH("Digital Loopback", SND_SOC_NOPM, 0, 0, + &nau8822_loopback), + + SND_SOC_DAPM_INPUT("LMICN"), + SND_SOC_DAPM_INPUT("LMICP"), + SND_SOC_DAPM_INPUT("RMICN"), + SND_SOC_DAPM_INPUT("RMICP"), + SND_SOC_DAPM_INPUT("LAUX"), + SND_SOC_DAPM_INPUT("RAUX"), + SND_SOC_DAPM_INPUT("L2"), + SND_SOC_DAPM_INPUT("R2"), + SND_SOC_DAPM_OUTPUT("LHP"), + SND_SOC_DAPM_OUTPUT("RHP"), + SND_SOC_DAPM_OUTPUT("LSPK"), + SND_SOC_DAPM_OUTPUT("RSPK"), + SND_SOC_DAPM_OUTPUT("AUXOUT1"), + SND_SOC_DAPM_OUTPUT("AUXOUT2"), +}; + +static const struct snd_soc_dapm_route nau8822_dapm_routes[] = { + {"Right DAC", NULL, "PLL", check_mclk_select_pll}, + {"Left DAC", NULL, "PLL", check_mclk_select_pll}, + + /* LMAIN and RMAIN Mixer */ + {"Right Output Mixer", "LDAC Switch", "Left DAC"}, + {"Right Output Mixer", "RDAC Switch", "Right DAC"}, + {"Right Output Mixer", "RAUX Switch", "RAUX"}, + {"Right Output Mixer", "RINMIX Switch", "Right Boost Mixer"}, + + {"Left Output Mixer", "LDAC Switch", "Left DAC"}, + {"Left Output Mixer", "RDAC Switch", "Right DAC"}, + {"Left Output Mixer", "LAUX Switch", "LAUX"}, + {"Left Output Mixer", "LINMIX Switch", "Left Boost Mixer"}, + + /* AUX1 and AUX2 Mixer */ + {"AUX1 Output Mixer", "RDAC Switch", "Right DAC"}, + {"AUX1 Output Mixer", "RMIX Switch", "Right Output Mixer"}, + {"AUX1 Output Mixer", "RINMIX Switch", "Right Boost Mixer"}, + {"AUX1 Output Mixer", "LDAC Switch", "Left DAC"}, + {"AUX1 Output Mixer", "LMIX Switch", "Left Output Mixer"}, + + {"AUX2 Output Mixer", "LDAC Switch", "Left DAC"}, + {"AUX2 Output Mixer", "LMIX Switch", "Left Output Mixer"}, + {"AUX2 Output Mixer", "LINMIX Switch", "Left Boost Mixer"}, + {"AUX2 Output Mixer", "AUX1MIX Output Switch", "AUX1 Output Mixer"}, + + /* Outputs */ + {"Right Headphone Out", NULL, "Right Output Mixer"}, + {"RHP", NULL, "Right Headphone Out"}, + + {"Left Headphone Out", NULL, "Left Output Mixer"}, + {"LHP", NULL, "Left Headphone Out"}, + + {"Right Speaker Out", NULL, "Right Output Mixer"}, + {"RSPK", NULL, "Right Speaker Out"}, + + {"Left Speaker Out", NULL, "Left Output Mixer"}, + {"LSPK", NULL, "Left Speaker Out"}, + + {"AUX1 Out", NULL, "AUX1 Output Mixer"}, + {"AUX2 Out", NULL, "AUX2 Output Mixer"}, + {"AUXOUT1", NULL, "AUX1 Out"}, + {"AUXOUT2", NULL, "AUX2 Out"}, + + /* Boost Mixer */ + {"Right ADC", NULL, "PLL", check_mclk_select_pll}, + {"Left ADC", NULL, "PLL", check_mclk_select_pll}, + + {"Right ADC", NULL, "Right Boost Mixer"}, + + {"Right Boost Mixer", NULL, "RAUX"}, + {"Right Boost Mixer", NULL, "Right Capture PGA"}, + {"Right Boost Mixer", NULL, "R2"}, + + {"Left ADC", NULL, "Left Boost Mixer"}, + + {"Left Boost Mixer", NULL, "LAUX"}, + {"Left Boost Mixer", NULL, "Left Capture PGA"}, + {"Left Boost Mixer", NULL, "L2"}, + + /* Input PGA */ + {"Right Capture PGA", NULL, "Right Input Mixer"}, + {"Left Capture PGA", NULL, "Left Input Mixer"}, + + /* Enable Microphone Power */ + {"Right Capture PGA", NULL, "Mic Bias"}, + {"Left Capture PGA", NULL, "Mic Bias"}, + + {"Right Input Mixer", "R2 Switch", "R2"}, + {"Right Input Mixer", "MicN Switch", "RMICN"}, + {"Right Input Mixer", "MicP Switch", "RMICP"}, + + {"Left Input Mixer", "L2 Switch", "L2"}, + {"Left Input Mixer", "MicN Switch", "LMICN"}, + {"Left Input Mixer", "MicP Switch", "LMICP"}, + + /* Digital Loopback */ + {"Digital Loopback", "Switch", "Left ADC"}, + {"Digital Loopback", "Switch", "Right ADC"}, + {"Left DAC", NULL, "Digital Loopback"}, + {"Right DAC", NULL, "Digital Loopback"}, +}; + +static int nau8822_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, + unsigned int freq, int dir) +{ + struct snd_soc_component *component = dai->component; + struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); + + nau8822->div_id = clk_id; + nau8822->sysclk = freq; + dev_dbg(component->dev, "master sysclk %dHz, source %s\n", freq, + clk_id == NAU8822_CLK_PLL ? "PLL" : "MCLK"); + + return 0; +} + +static int nau8822_calc_pll(unsigned int pll_in, unsigned int fs, + struct nau8822_pll *pll_param) +{ + u64 f2, f2_max, pll_ratio; + int i, scal_sel; + + if (pll_in > NAU_PLL_REF_MAX || pll_in < NAU_PLL_REF_MIN) + return -EINVAL; + f2_max = 0; + scal_sel = ARRAY_SIZE(nau8822_mclk_scaler); + + for (i = 0; i < scal_sel; i++) { + f2 = 256 * fs * 4 * nau8822_mclk_scaler[i] / 10; + if (f2 > NAU_PLL_FREQ_MIN && f2 < NAU_PLL_FREQ_MAX && + f2_max < f2) { + f2_max = f2; + scal_sel = i; + } + } + + if (ARRAY_SIZE(nau8822_mclk_scaler) == scal_sel) + return -EINVAL; + pll_param->mclk_scaler = scal_sel; + f2 = f2_max; + + /* Calculate the PLL 4-bit integer input and the PLL 24-bit fractional + * input; round up the 24+4bit. + */ + pll_ratio = div_u64(f2 << 28, pll_in); + pll_param->pre_factor = 0; + if (((pll_ratio >> 28) & 0xF) < NAU_PLL_OPTOP_MIN) { + pll_ratio <<= 1; + pll_param->pre_factor = 1; + } + pll_param->pll_int = (pll_ratio >> 28) & 0xF; + pll_param->pll_frac = ((pll_ratio & 0xFFFFFFF) >> 4); + + return 0; +} + +static int nau8822_config_clkdiv(struct snd_soc_dai *dai, int div, int rate) +{ + struct snd_soc_component *component = dai->component; + struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); + struct nau8822_pll *pll = &nau8822->pll; + int i, sclk, imclk; + + switch (nau8822->div_id) { + case NAU8822_CLK_MCLK: + /* Configure the master clock prescaler div to make system + * clock to approximate the internal master clock (IMCLK); + * and large or equal to IMCLK. + */ + div = 0; + imclk = rate * 256; + for (i = 1; i < ARRAY_SIZE(nau8822_mclk_scaler); i++) { + sclk = (nau8822->sysclk * 10) / nau8822_mclk_scaler[i]; + if (sclk < imclk) + break; + div = i; + } + dev_dbg(component->dev, "master clock prescaler %x for fs %d\n", + div, rate); + + /* master clock from MCLK and disable PLL */ + snd_soc_component_update_bits(component, + NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK, + (div << NAU8822_MCLKSEL_SFT)); + snd_soc_component_update_bits(component, + NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK, + NAU8822_CLKM_MCLK); + break; + + case NAU8822_CLK_PLL: + /* master clock from PLL and enable PLL */ + if (pll->mclk_scaler != div) { + dev_err(component->dev, + "master clock prescaler not meet PLL parameters\n"); + return -EINVAL; + } + snd_soc_component_update_bits(component, + NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK, + (div << NAU8822_MCLKSEL_SFT)); + snd_soc_component_update_bits(component, + NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK, + NAU8822_CLKM_PLL); + break; + + default: + return -EINVAL; + } + + return 0; +} + +static int nau8822_set_pll(struct snd_soc_dai *dai, int pll_id, int source, + unsigned int freq_in, unsigned int freq_out) +{ + struct snd_soc_component *component = dai->component; + struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); + struct nau8822_pll *pll_param = &nau8822->pll; + int ret, fs; + + fs = freq_out / 256; + + ret = nau8822_calc_pll(freq_in, fs, pll_param); + if (ret < 0) { + dev_err(component->dev, "Unsupported input clock %d\n", + freq_in); + return ret; + } + + dev_info(component->dev, + "pll_int=%x pll_frac=%x mclk_scaler=%x pre_factor=%x\n", + pll_param->pll_int, pll_param->pll_frac, + pll_param->mclk_scaler, pll_param->pre_factor); + + snd_soc_component_update_bits(component, + NAU8822_REG_PLL_N, NAU8822_PLLMCLK_DIV2 | NAU8822_PLLN_MASK, + (pll_param->pre_factor ? NAU8822_PLLMCLK_DIV2 : 0) | + pll_param->pll_int); + snd_soc_component_write(component, + NAU8822_REG_PLL_K1, (pll_param->pll_frac >> NAU8822_PLLK1_SFT) & + NAU8822_PLLK1_MASK); + snd_soc_component_write(component, + NAU8822_REG_PLL_K2, (pll_param->pll_frac >> NAU8822_PLLK2_SFT) & + NAU8822_PLLK2_MASK); + snd_soc_component_write(component, + NAU8822_REG_PLL_K3, pll_param->pll_frac & NAU8822_PLLK3_MASK); + snd_soc_component_update_bits(component, + NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK, + pll_param->mclk_scaler << NAU8822_MCLKSEL_SFT); + snd_soc_component_update_bits(component, + NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK, NAU8822_CLKM_PLL); + + return 0; +} + +static int nau8822_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_component *component = dai->component; + u16 ctrl1_val = 0, ctrl2_val = 0; + + dev_dbg(component->dev, "%s\n", __func__); + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + ctrl2_val |= 1; + break; + case SND_SOC_DAIFMT_CBS_CFS: + ctrl2_val &= ~1; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + ctrl1_val |= 0x10; + break; + case SND_SOC_DAIFMT_RIGHT_J: + break; + case SND_SOC_DAIFMT_LEFT_J: + ctrl1_val |= 0x8; + break; + case SND_SOC_DAIFMT_DSP_A: + ctrl1_val |= 0x18; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_IF: + ctrl1_val |= 0x180; + break; + case SND_SOC_DAIFMT_IB_NF: + ctrl1_val |= 0x100; + break; + case SND_SOC_DAIFMT_NB_IF: + ctrl1_val |= 0x80; + break; + default: + return -EINVAL; + } + + snd_soc_component_update_bits(component, + NAU8822_REG_AUDIO_INTERFACE, + NAU8822_AIFMT_MASK | NAU8822_LRP_MASK | NAU8822_BCLKP_MASK, + ctrl1_val); + snd_soc_component_update_bits(component, + NAU8822_REG_CLOCKING, NAU8822_CLKIOEN_MASK, ctrl2_val); + + return 0; +} + +static int nau8822_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); + int val_len = 0, val_rate = 0; + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + break; + case SNDRV_PCM_FORMAT_S20_3LE: + val_len |= NAU8822_WLEN_20; + break; + case SNDRV_PCM_FORMAT_S24_LE: + val_len |= NAU8822_WLEN_24; + break; + case SNDRV_PCM_FORMAT_S32_LE: + val_len |= NAU8822_WLEN_32; + break; + default: + return -EINVAL; + } + + switch (params_rate(params)) { + case 8000: + val_rate |= NAU8822_SMPLR_8K; + break; + case 11025: + val_rate |= NAU8822_SMPLR_12K; + break; + case 16000: + val_rate |= NAU8822_SMPLR_16K; + break; + case 22050: + val_rate |= NAU8822_SMPLR_24K; + break; + case 32000: + val_rate |= NAU8822_SMPLR_32K; + break; + case 44100: + case 48000: + break; + default: + return -EINVAL; + } + + snd_soc_component_update_bits(component, + NAU8822_REG_AUDIO_INTERFACE, NAU8822_WLEN_MASK, val_len); + snd_soc_component_update_bits(component, + NAU8822_REG_ADDITIONAL_CONTROL, NAU8822_SMPLR_MASK, val_rate); + + /* If the master clock is from MCLK, provide the runtime FS for driver + * to get the master clock prescaler configuration. + */ + if (nau8822->div_id == NAU8822_CLK_MCLK) + nau8822_config_clkdiv(dai, 0, params_rate(params)); + + return 0; +} + +static int nau8822_mute(struct snd_soc_dai *dai, int mute) +{ + struct snd_soc_component *component = dai->component; + + dev_dbg(component->dev, "%s: %d\n", __func__, mute); + + if (mute) + snd_soc_component_update_bits(component, + NAU8822_REG_DAC_CONTROL, 0x40, 0x40); + else + snd_soc_component_update_bits(component, + NAU8822_REG_DAC_CONTROL, 0x40, 0); + + return 0; +} + +static int nau8822_set_bias_level(struct snd_soc_component *component, + enum snd_soc_bias_level level) +{ + switch (level) { + case SND_SOC_BIAS_ON: + case SND_SOC_BIAS_PREPARE: + snd_soc_component_update_bits(component, + NAU8822_REG_POWER_MANAGEMENT_1, + NAU8822_REFIMP_MASK, NAU8822_REFIMP_80K); + break; + + case SND_SOC_BIAS_STANDBY: + snd_soc_component_update_bits(component, + NAU8822_REG_POWER_MANAGEMENT_1, + NAU8822_IOBUF_EN | NAU8822_ABIAS_EN, + NAU8822_IOBUF_EN | NAU8822_ABIAS_EN); + + if (snd_soc_component_get_bias_level(component) == + SND_SOC_BIAS_OFF) { + snd_soc_component_update_bits(component, + NAU8822_REG_POWER_MANAGEMENT_1, + NAU8822_REFIMP_MASK, NAU8822_REFIMP_3K); + mdelay(100); + } + snd_soc_component_update_bits(component, + NAU8822_REG_POWER_MANAGEMENT_1, + NAU8822_REFIMP_MASK, NAU8822_REFIMP_300K); + break; + + case SND_SOC_BIAS_OFF: + snd_soc_component_write(component, + NAU8822_REG_POWER_MANAGEMENT_1, 0); + snd_soc_component_write(component, + NAU8822_REG_POWER_MANAGEMENT_2, 0); + snd_soc_component_write(component, + NAU8822_REG_POWER_MANAGEMENT_3, 0); + break; + } + + dev_dbg(component->dev, "%s: %d\n", __func__, level); + + return 0; +} + +#define NAU8822_RATES (SNDRV_PCM_RATE_8000_48000) + +#define NAU8822_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) + +static const struct snd_soc_dai_ops nau8822_dai_ops = { + .hw_params = nau8822_hw_params, + .digital_mute = nau8822_mute, + .set_fmt = nau8822_set_dai_fmt, + .set_sysclk = nau8822_set_dai_sysclk, + .set_pll = nau8822_set_pll, +}; + +static struct snd_soc_dai_driver nau8822_dai = { + .name = "nau8822-hifi", + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 2, + .rates = NAU8822_RATES, + .formats = NAU8822_FORMATS, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = NAU8822_RATES, + .formats = NAU8822_FORMATS, + }, + .ops = &nau8822_dai_ops, + .symmetric_rates = 1, +}; + +static int nau8822_suspend(struct snd_soc_component *component) +{ + struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); + + snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF); + + regcache_mark_dirty(nau8822->regmap); + + return 0; +} + +static int nau8822_resume(struct snd_soc_component *component) +{ + struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); + + regcache_sync(nau8822->regmap); + + snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY); + + return 0; +} + +/* + * These registers contain an "update" bit - bit 8. This means, for example, + * that one can write new DAC digital volume for both channels, but only when + * the update bit is set, will also the volume be updated - simultaneously for + * both channels. + */ +static const int update_reg[] = { + NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME, + NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME, + NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME, + NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME, + NAU8822_REG_LEFT_INP_PGA_CONTROL, + NAU8822_REG_RIGHT_INP_PGA_CONTROL, + NAU8822_REG_LHP_VOLUME, + NAU8822_REG_RHP_VOLUME, + NAU8822_REG_LSPKOUT_VOLUME, + NAU8822_REG_RSPKOUT_VOLUME, +}; + +static int nau8822_probe(struct snd_soc_component *component) +{ + int i; + + /* + * Set the update bit in all registers, that have one. This way all + * writes to those registers will also cause the update bit to be + * written. + */ + for (i = 0; i < ARRAY_SIZE(update_reg); i++) + snd_soc_component_update_bits(component, + update_reg[i], 0x100, 0x100); + + return 0; +} + +static const struct snd_soc_component_driver soc_component_dev_nau8822 = { + .probe = nau8822_probe, + .suspend = nau8822_suspend, + .resume = nau8822_resume, + .set_bias_level = nau8822_set_bias_level, + .controls = nau8822_snd_controls, + .num_controls = ARRAY_SIZE(nau8822_snd_controls), + .dapm_widgets = nau8822_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(nau8822_dapm_widgets), + .dapm_routes = nau8822_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(nau8822_dapm_routes), + .idle_bias_on = 1, + .use_pmdown_time = 1, + .endianness = 1, + .non_legacy_dai_naming = 1, +}; + +static const struct regmap_config nau8822_regmap_config = { + .reg_bits = 7, + .val_bits = 9, + + .max_register = NAU8822_REG_MAX_REGISTER, + .volatile_reg = nau8822_volatile, + + .readable_reg = nau8822_readable_reg, + .writeable_reg = nau8822_writeable_reg, + + .cache_type = REGCACHE_RBTREE, + .reg_defaults = nau8822_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(nau8822_reg_defaults), +}; + +static int nau8822_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct device *dev = &i2c->dev; + struct nau8822 *nau8822 = dev_get_platdata(dev); + int ret; + + if (!nau8822) { + nau8822 = devm_kzalloc(dev, sizeof(*nau8822), GFP_KERNEL); + if (nau8822 == NULL) + return -ENOMEM; + } + i2c_set_clientdata(i2c, nau8822); + + nau8822->regmap = devm_regmap_init_i2c(i2c, &nau8822_regmap_config); + if (IS_ERR(nau8822->regmap)) { + ret = PTR_ERR(nau8822->regmap); + dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret); + return ret; + } + nau8822->dev = dev; + + /* Reset the codec */ + ret = regmap_write(nau8822->regmap, NAU8822_REG_RESET, 0x00); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret); + return ret; + } + + ret = devm_snd_soc_register_component(dev, &soc_component_dev_nau8822, + &nau8822_dai, 1); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); + return ret; + } + + return 0; +} + +static const struct i2c_device_id nau8822_i2c_id[] = { + { "nau8822", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, nau8822_i2c_id); + +#ifdef CONFIG_OF +static const struct of_device_id nau8822_of_match[] = { + { .compatible = "nuvoton,nau8822", }, + { } +}; +MODULE_DEVICE_TABLE(of, nau8822_of_match); +#endif + +static struct i2c_driver nau8822_i2c_driver = { + .driver = { + .name = "nau8822", + .of_match_table = of_match_ptr(nau8822_of_match), + }, + .probe = nau8822_i2c_probe, + .id_table = nau8822_i2c_id, +}; +module_i2c_driver(nau8822_i2c_driver); + +MODULE_DESCRIPTION("ASoC NAU8822 codec driver"); +MODULE_AUTHOR("David Lin "); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/nau8822.h b/sound/soc/codecs/nau8822.h new file mode 100644 index 000000000000..aa79c969cd44 --- /dev/null +++ b/sound/soc/codecs/nau8822.h @@ -0,0 +1,204 @@ +/* + * nau8822.h -- NAU8822 Soc Audio Codec driver + * + * Author: David Lin + * Co-author: John Hsu + * Co-author: Seven Li + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __NAU8822_H__ +#define __NAU8822_H__ + +#define NAU8822_REG_RESET 0x00 +#define NAU8822_REG_POWER_MANAGEMENT_1 0x01 +#define NAU8822_REG_POWER_MANAGEMENT_2 0x02 +#define NAU8822_REG_POWER_MANAGEMENT_3 0x03 +#define NAU8822_REG_AUDIO_INTERFACE 0x04 +#define NAU8822_REG_COMPANDING_CONTROL 0x05 +#define NAU8822_REG_CLOCKING 0x06 +#define NAU8822_REG_ADDITIONAL_CONTROL 0x07 +#define NAU8822_REG_GPIO_CONTROL 0x08 +#define NAU8822_REG_JACK_DETECT_CONTROL_1 0x09 +#define NAU8822_REG_DAC_CONTROL 0x0A +#define NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME 0x0B +#define NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME 0x0C +#define NAU8822_REG_JACK_DETECT_CONTROL_2 0x0D +#define NAU8822_REG_ADC_CONTROL 0x0E +#define NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME 0x0F +#define NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME 0x10 +#define NAU8822_REG_EQ1 0x12 +#define NAU8822_REG_EQ2 0x13 +#define NAU8822_REG_EQ3 0x14 +#define NAU8822_REG_EQ4 0x15 +#define NAU8822_REG_EQ5 0x16 +#define NAU8822_REG_DAC_LIMITER_1 0x18 +#define NAU8822_REG_DAC_LIMITER_2 0x19 +#define NAU8822_REG_NOTCH_FILTER_1 0x1B +#define NAU8822_REG_NOTCH_FILTER_2 0x1C +#define NAU8822_REG_NOTCH_FILTER_3 0x1D +#define NAU8822_REG_NOTCH_FILTER_4 0x1E +#define NAU8822_REG_ALC_CONTROL_1 0x20 +#define NAU8822_REG_ALC_CONTROL_2 0x21 +#define NAU8822_REG_ALC_CONTROL_3 0x22 +#define NAU8822_REG_NOISE_GATE 0x23 +#define NAU8822_REG_PLL_N 0x24 +#define NAU8822_REG_PLL_K1 0x25 +#define NAU8822_REG_PLL_K2 0x26 +#define NAU8822_REG_PLL_K3 0x27 +#define NAU8822_REG_3D_CONTROL 0x29 +#define NAU8822_REG_RIGHT_SPEAKER_CONTROL 0x2B +#define NAU8822_REG_INPUT_CONTROL 0x2C +#define NAU8822_REG_LEFT_INP_PGA_CONTROL 0x2D +#define NAU8822_REG_RIGHT_INP_PGA_CONTROL 0x2E +#define NAU8822_REG_LEFT_ADC_BOOST_CONTROL 0x2F +#define NAU8822_REG_RIGHT_ADC_BOOST_CONTROL 0x30 +#define NAU8822_REG_OUTPUT_CONTROL 0x31 +#define NAU8822_REG_LEFT_MIXER_CONTROL 0x32 +#define NAU8822_REG_RIGHT_MIXER_CONTROL 0x33 +#define NAU8822_REG_LHP_VOLUME 0x34 +#define NAU8822_REG_RHP_VOLUME 0x35 +#define NAU8822_REG_LSPKOUT_VOLUME 0x36 +#define NAU8822_REG_RSPKOUT_VOLUME 0x37 +#define NAU8822_REG_AUX2_MIXER 0x38 +#define NAU8822_REG_AUX1_MIXER 0x39 +#define NAU8822_REG_POWER_MANAGEMENT_4 0x3A +#define NAU8822_REG_LEFT_TIME_SLOT 0x3B +#define NAU8822_REG_MISC 0x3C +#define NAU8822_REG_RIGHT_TIME_SLOT 0x3D +#define NAU8822_REG_DEVICE_REVISION 0x3E +#define NAU8822_REG_DEVICE_ID 0x3F +#define NAU8822_REG_DAC_DITHER 0x41 +#define NAU8822_REG_ALC_ENHANCE_1 0x46 +#define NAU8822_REG_ALC_ENHANCE_2 0x47 +#define NAU8822_REG_192KHZ_SAMPLING 0x48 +#define NAU8822_REG_MISC_CONTROL 0x49 +#define NAU8822_REG_INPUT_TIEOFF 0x4A +#define NAU8822_REG_POWER_REDUCTION 0x4B +#define NAU8822_REG_AGC_PEAK2PEAK 0x4C +#define NAU8822_REG_AGC_PEAK_DETECT 0x4D +#define NAU8822_REG_AUTOMUTE_CONTROL 0x4E +#define NAU8822_REG_OUTPUT_TIEOFF 0x4F +#define NAU8822_REG_MAX_REGISTER NAU8822_REG_OUTPUT_TIEOFF + +/* NAU8822_REG_POWER_MANAGEMENT_1 (0x1) */ +#define NAU8822_REFIMP_MASK 0x3 +#define NAU8822_REFIMP_80K 0x1 +#define NAU8822_REFIMP_300K 0x2 +#define NAU8822_REFIMP_3K 0x3 +#define NAU8822_IOBUF_EN (0x1 << 2) +#define NAU8822_ABIAS_EN (0x1 << 3) + +/* NAU8822_REG_AUDIO_INTERFACE (0x4) */ +#define NAU8822_AIFMT_MASK (0x3 << 3) +#define NAU8822_WLEN_MASK (0x3 << 5) +#define NAU8822_WLEN_20 (0x1 << 5) +#define NAU8822_WLEN_24 (0x2 << 5) +#define NAU8822_WLEN_32 (0x3 << 5) +#define NAU8822_LRP_MASK (0x1 << 7) +#define NAU8822_BCLKP_MASK (0x1 << 8) + +/* NAU8822_REG_COMPANDING_CONTROL (0x5) */ +#define NAU8822_ADDAP_SFT 0 +#define NAU8822_ADCCM_SFT 1 +#define NAU8822_DACCM_SFT 3 + +/* NAU8822_REG_CLOCKING (0x6) */ +#define NAU8822_CLKIOEN_MASK 0x1 +#define NAU8822_MCLKSEL_SFT 5 +#define NAU8822_MCLKSEL_MASK (0x7 << 5) +#define NAU8822_BCLKSEL_SFT 2 +#define NAU8822_BCLKSEL_MASK (0x7 << 2) +#define NAU8822_CLKM_MASK (0x1 << 8) +#define NAU8822_CLKM_MCLK (0x0 << 8) +#define NAU8822_CLKM_PLL (0x1 << 8) + +/* NAU8822_REG_ADDITIONAL_CONTROL (0x08) */ +#define NAU8822_SMPLR_SFT 1 +#define NAU8822_SMPLR_MASK (0x7 << 1) +#define NAU8822_SMPLR_48K (0x0 << 1) +#define NAU8822_SMPLR_32K (0x1 << 1) +#define NAU8822_SMPLR_24K (0x2 << 1) +#define NAU8822_SMPLR_16K (0x3 << 1) +#define NAU8822_SMPLR_12K (0x4 << 1) +#define NAU8822_SMPLR_8K (0x5 << 1) + +/* NAU8822_REG_EQ1 (0x12) */ +#define NAU8822_EQ1GC_SFT 0 +#define NAU8822_EQ1CF_SFT 5 +#define NAU8822_EQM_SFT 8 + +/* NAU8822_REG_EQ2 (0x13) */ +#define NAU8822_EQ2GC_SFT 0 +#define NAU8822_EQ2CF_SFT 5 +#define NAU8822_EQ2BW_SFT 8 + +/* NAU8822_REG_EQ3 (0x14) */ +#define NAU8822_EQ3GC_SFT 0 +#define NAU8822_EQ3CF_SFT 5 +#define NAU8822_EQ3BW_SFT 8 + +/* NAU8822_REG_EQ4 (0x15) */ +#define NAU8822_EQ4GC_SFT 0 +#define NAU8822_EQ4CF_SFT 5 +#define NAU8822_EQ4BW_SFT 8 + +/* NAU8822_REG_EQ5 (0x16) */ +#define NAU8822_EQ5GC_SFT 0 +#define NAU8822_EQ5CF_SFT 5 + +/* NAU8822_REG_ALC_CONTROL_1 (0x20) */ +#define NAU8822_ALCMINGAIN_SFT 0 +#define NAU8822_ALCMXGAIN_SFT 3 +#define NAU8822_ALCEN_SFT 7 + +/* NAU8822_REG_ALC_CONTROL_2 (0x21) */ +#define NAU8822_ALCSL_SFT 0 +#define NAU8822_ALCHT_SFT 4 + +/* NAU8822_REG_ALC_CONTROL_3 (0x22) */ +#define NAU8822_ALCATK_SFT 0 +#define NAU8822_ALCDCY_SFT 4 +#define NAU8822_ALCM_SFT 8 + +/* NAU8822_REG_PLL_N (0x24) */ +#define NAU8822_PLLMCLK_DIV2 (0x1 << 4) +#define NAU8822_PLLN_MASK 0xF + +#define NAU8822_PLLK1_SFT 18 +#define NAU8822_PLLK1_MASK 0x3F + +/* NAU8822_REG_PLL_K2 (0x26) */ +#define NAU8822_PLLK2_SFT 9 +#define NAU8822_PLLK2_MASK 0x1FF + +/* NAU8822_REG_PLL_K3 (0x27) */ +#define NAU8822_PLLK3_MASK 0x1FF + +/* System Clock Source */ +enum { + NAU8822_CLK_MCLK, + NAU8822_CLK_PLL, +}; + +struct nau8822_pll { + int pre_factor; + int mclk_scaler; + int pll_frac; + int pll_int; +}; + +/* Codec Private Data */ +struct nau8822 { + struct device *dev; + struct regmap *regmap; + int mclk_idx; + struct nau8822_pll pll; + int sysclk; + int div_id; +}; + +#endif /* __NAU8822_H__ */ From fce9ec954a8af7e04cbf5b9daa8bec9c1df5cfe6 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Wed, 17 Oct 2018 13:37:03 +0200 Subject: [PATCH 1747/1762] ASoC: sta32x: Add support for XTI clock The STA32x chips feature an XTI clock input that needs to be stable before the reset signal is released. Therefore, the chip driver needs to get a handle to the clock. Instead of relying on other parts of the system to enable the clock, let the codec driver grab a handle itself. In order to keep existing boards working, clock support is made optional. Signed-off-by: Daniel Mack Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/st,sta32x.txt | 6 ++++ sound/soc/codecs/sta32x.c | 28 +++++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/st,sta32x.txt b/Documentation/devicetree/bindings/sound/st,sta32x.txt index ff4a685a4303..52265fb757c5 100644 --- a/Documentation/devicetree/bindings/sound/st,sta32x.txt +++ b/Documentation/devicetree/bindings/sound/st,sta32x.txt @@ -19,6 +19,10 @@ Required properties: Optional properties: + - clocks, clock-names: Clock specifier for XTI input clock. + If specified, the clock will be enabled when the codec is probed, + and disabled when it is removed. The 'clock-names' must be set to 'xti'. + - st,output-conf: number, Selects the output configuration: 0: 2-channel (full-bridge) power, 2-channel data-out 1: 2 (half-bridge). 1 (full-bridge) on-board power @@ -79,6 +83,8 @@ Example: codec: sta32x@38 { compatible = "st,sta32x"; reg = <0x1c>; + clocks = <&clock>; + clock-names = "xti"; reset-gpios = <&gpio1 19 0>; power-down-gpios = <&gpio1 16 0>; st,output-conf = /bits/ 8 <0x3>; // set output to 2-channel diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c index 22de1593443c..f753d2db0a5a 100644 --- a/sound/soc/codecs/sta32x.c +++ b/sound/soc/codecs/sta32x.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include @@ -142,6 +143,7 @@ static const char *sta32x_supply_names[] = { /* codec private data */ struct sta32x_priv { struct regmap *regmap; + struct clk *xti_clk; struct regulator_bulk_data supplies[ARRAY_SIZE(sta32x_supply_names)]; struct snd_soc_component *component; struct sta32x_platform_data *pdata; @@ -879,6 +881,18 @@ static int sta32x_probe(struct snd_soc_component *component) struct sta32x_priv *sta32x = snd_soc_component_get_drvdata(component); struct sta32x_platform_data *pdata = sta32x->pdata; int i, ret = 0, thermal = 0; + + sta32x->component = component; + + if (sta32x->xti_clk) { + ret = clk_prepare_enable(sta32x->xti_clk); + if (ret != 0) { + dev_err(component->dev, + "Failed to enable clock: %d\n", ret); + return ret; + } + } + ret = regulator_bulk_enable(ARRAY_SIZE(sta32x->supplies), sta32x->supplies); if (ret != 0) { @@ -981,6 +995,9 @@ static void sta32x_remove(struct snd_soc_component *component) sta32x_watchdog_stop(sta32x); regulator_bulk_disable(ARRAY_SIZE(sta32x->supplies), sta32x->supplies); + + if (sta32x->xti_clk) + clk_disable_unprepare(sta32x->xti_clk); } static const struct snd_soc_component_driver sta32x_component = { @@ -1097,6 +1114,17 @@ static int sta32x_i2c_probe(struct i2c_client *i2c, } #endif + /* Clock */ + sta32x->xti_clk = devm_clk_get(dev, "xti"); + if (IS_ERR(sta32x->xti_clk)) { + ret = PTR_ERR(sta32x->xti_clk); + + if (ret == -EPROBE_DEFER) + return ret; + + sta32x->xti_clk = NULL; + } + /* GPIOs */ sta32x->gpiod_nreset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW); From 4e9e07c5675706983ed649cfb92521a4d8aa1d6d Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 17 Oct 2018 01:54:33 +0000 Subject: [PATCH 1748/1762] ASoC: pcm3168a: add hw constraint for capture channel LEFT_J / I2S only can use TDM. commit 594680ea4a394 ("ASoC: pcm3168a: add hw constraint for channel") commit 3809688980205 ("ASoC: pcm3168a: add HW constraint for non RIGHT_J") added channel constraint for it, but, it was only for playback. This patch adds constraint for capture. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/codecs/pcm3168a.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/pcm3168a.c b/sound/soc/codecs/pcm3168a.c index 63aa02592bc0..52cc950c9fd1 100644 --- a/sound/soc/codecs/pcm3168a.c +++ b/sound/soc/codecs/pcm3168a.c @@ -529,11 +529,17 @@ static int pcm3168a_startup(struct snd_pcm_substream *substream, break; case PCM3168A_FMT_LEFT_J: sample_min = 24; - channel_max = 8; + if (tx) + channel_max = 8; + else + channel_max = 6; break; case PCM3168A_FMT_I2S: sample_min = 24; - channel_max = 8; + if (tx) + channel_max = 8; + else + channel_max = 6; break; default: sample_min = 24; @@ -559,6 +565,7 @@ static const struct snd_soc_dai_ops pcm3168a_dac_dai_ops = { }; static const struct snd_soc_dai_ops pcm3168a_adc_dai_ops = { + .startup = pcm3168a_startup, .set_fmt = pcm3168a_set_dai_fmt_adc, .set_sysclk = pcm3168a_set_dai_sysclk, .hw_params = pcm3168a_hw_params From 6817d7593f3e3c8a9c11e7a07cb5646c70371f0a Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 17 Oct 2018 01:55:37 +0000 Subject: [PATCH 1749/1762] ASoC: rsnd: enable TDM settings for SSI parent Some SSIs are sharing each pins (= WS/CLK pin for playback/capture). Then, SSI parent needs control WS/CLK setting for SSI slave. In such case, SSI parent needs TDM settings if SSI slave is working as TDM mode. But it is not cared in current driver. It can't capture TDM sound without this patch if SSIs were pin sharing. This patch is tested on R-Car H3 ulcb-kf board, SSI3/4 with TDM sound. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/sh/rcar/ssi.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index 3adcc4f778f7..b42a0e0feab7 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -399,6 +399,17 @@ static void rsnd_ssi_config_init(struct rsnd_mod *mod, if (rdai->sys_delay) cr_own |= DEL; + /* + * TDM Mode + * see + * rsnd_ssiu_init_gen2() + */ + wsr = ssi->wsr; + if (is_tdm) { + wsr |= WS_MODE; + cr_own |= CHNL_8; + } + /* * We shouldn't exchange SWSP after running. * This means, parent needs to care it. @@ -429,16 +440,6 @@ static void rsnd_ssi_config_init(struct rsnd_mod *mod, cr_mode = DIEN; /* PIO : enable Data interrupt */ } - /* - * TDM Extend Mode - * see - * rsnd_ssiu_init_gen2() - */ - wsr = ssi->wsr; - if (is_tdm) { - wsr |= WS_MODE; - cr_own |= CHNL_8; - } init_end: ssi->cr_own = cr_own; ssi->cr_mode = cr_mode; From 2eaa6e233091f51d8a629e423ad0bc080ffcb5d6 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 17 Oct 2018 01:55:57 +0000 Subject: [PATCH 1750/1762] ASoC: rsnd: tidyup SSICR::SWSP for TDM R-Car datasheet is indicating that WS output settings of SSICR::SWSP is inverted on TDM mode from non TDM mode settings. But, it is meaning that TDM should use 0 here. Without this patch, sound input/output 1ch will be 2ch, 2ch will be 3ch ..., be jumbled on I2S + TDM settings. This patch fixup it. This patch is tested on R-Car H3 ulcb-kf board, SSI3/4 TDM sound. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/sh/rcar/ssi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index b42a0e0feab7..fcb4df23248c 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -392,7 +392,7 @@ static void rsnd_ssi_config_init(struct rsnd_mod *mod, if (rdai->bit_clk_inv) cr_own |= SCKP; - if (rdai->frm_clk_inv ^ is_tdm) + if (rdai->frm_clk_inv && !is_tdm) cr_own |= SWSP; if (rdai->data_alignment) cr_own |= SDTA; From 9ab2a1bd81f7eaef4b496168dd93e0f23e8906fe Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 18 Oct 2018 10:34:30 +0300 Subject: [PATCH 1751/1762] ASoC: Intel: kbl_da7219_max98927: minor white space clean up I just added a couple missing tabs. Signed-off-by: Dan Carpenter Signed-off-by: Mark Brown --- sound/soc/intel/boards/kbl_da7219_max98927.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/intel/boards/kbl_da7219_max98927.c b/sound/soc/intel/boards/kbl_da7219_max98927.c index 3ab96ee7bd3c..3fa1c3ca6d37 100644 --- a/sound/soc/intel/boards/kbl_da7219_max98927.c +++ b/sound/soc/intel/boards/kbl_da7219_max98927.c @@ -180,14 +180,14 @@ static int kabylake_ssp0_hw_params(struct snd_pcm_substream *substream, ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x30, 3, 8, 16); if (ret < 0) { dev_err(runtime->dev, "DEV0 TDM slot err:%d\n", ret); - return ret; + return ret; } } if (!strcmp(codec_dai->component->name, MAXIM_DEV1_NAME)) { ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xC0, 3, 8, 16); if (ret < 0) { dev_err(runtime->dev, "DEV1 TDM slot err:%d\n", ret); - return ret; + return ret; } } } From 3c01b0e129e9486c8004e43eba3a70de7393f645 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Thu, 11 Oct 2018 17:28:28 +0100 Subject: [PATCH 1752/1762] ASoC: dapm: Add support for hw_free on CODEC to CODEC links Currently, on power down for a CODEC to CODEC DAI link we only call digital_mute and shutdown. Provide a little more flexibility for drivers by adding a call to hw_free as well. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 8c5b065c8880..a5178845065b 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -3737,25 +3737,30 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, ret = 0; } + substream.stream = SNDRV_PCM_STREAM_CAPTURE; snd_soc_dapm_widget_for_each_source_path(w, path) { source = path->source->priv; + if (source->driver->ops->hw_free) + source->driver->ops->hw_free(&substream, + source); + source->active--; - if (source->driver->ops->shutdown) { - substream.stream = SNDRV_PCM_STREAM_CAPTURE; + if (source->driver->ops->shutdown) source->driver->ops->shutdown(&substream, source); - } } + substream.stream = SNDRV_PCM_STREAM_PLAYBACK; snd_soc_dapm_widget_for_each_sink_path(w, path) { sink = path->sink->priv; + if (sink->driver->ops->hw_free) + sink->driver->ops->hw_free(&substream, sink); + sink->active--; - if (sink->driver->ops->shutdown) { - substream.stream = SNDRV_PCM_STREAM_PLAYBACK; + if (sink->driver->ops->shutdown) sink->driver->ops->shutdown(&substream, sink); - } } break; From 2c7b696a7589ab14854c132dc732973fbd498d5a Mon Sep 17 00:00:00 2001 From: Marcel Ziswiler Date: Thu, 18 Oct 2018 13:18:28 +0200 Subject: [PATCH 1753/1762] ASoC: soc-core: fix trivial checkpatch issues Fix a few trivial aka cosmetic only checkpatch issues like long lines, wrong indentations, spurious blanks and newlines, missing newlines, multi-line comments etc. Signed-off-by: Marcel Ziswiler Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 146 ++++++++++++++++++++++++++----------------- 1 file changed, 88 insertions(+), 58 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 62e8e36062df..6ddcf12bc030 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -66,8 +66,9 @@ static int pmdown_time = 5000; module_param(pmdown_time, int, 0); MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); -/* If a DMI filed contain strings in this blacklist (e.g. - * "Type2 - Board Manufacturer" or "Type1 - TBD by OEM"), it will be taken +/* + * If a DMI filed contain strings in this blacklist (e.g. + * "Type2 - Board Manufacturer" or "Type1 - TBD by OEM"), it will be taken * as invalid and dropped when setting the card long name from DMI info. */ static const char * const dmi_blacklist[] = { @@ -222,7 +223,7 @@ static void soc_init_card_debugfs(struct snd_soc_card *card) &card->pop_time); if (!card->debugfs_pop_time) dev_warn(card->dev, - "ASoC: Failed to create pop time debugfs file\n"); + "ASoC: Failed to create pop time debugfs file\n"); } static void soc_cleanup_card_debugfs(struct snd_soc_card *card) @@ -426,7 +427,8 @@ EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); static void codec2codec_close_delayed_work(struct work_struct *work) { - /* Currently nothing to do for c2c links + /* + * Currently nothing to do for c2c links * Since c2c links are internal nodes in the DAPM graph and * don't interface with the outside world or application layer * we don't have to do any special handling on close. @@ -446,8 +448,9 @@ int snd_soc_suspend(struct device *dev) if (!card->instantiated) return 0; - /* Due to the resume being scheduled into a workqueue we could - * suspend before that's finished - wait for it to complete. + /* + * Due to the resume being scheduled into a workqueue we could + * suspend before that's finished - wait for it to complete. */ snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); @@ -514,10 +517,13 @@ int snd_soc_suspend(struct device *dev) /* suspend all COMPONENTs */ for_each_card_components(card, component) { - struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + struct snd_soc_dapm_context *dapm = + snd_soc_component_get_dapm(component); - /* If there are paths active then the COMPONENT will be held with - * bias _ON and should not be suspended. */ + /* + * If there are paths active then the COMPONENT will be held + * with bias _ON and should not be suspended. + */ if (!component->suspended) { switch (snd_soc_dapm_get_bias_level(dapm)) { case SND_SOC_BIAS_STANDBY: @@ -571,18 +577,21 @@ int snd_soc_suspend(struct device *dev) } EXPORT_SYMBOL_GPL(snd_soc_suspend); -/* deferred resume work, so resume can complete before we finished +/* + * deferred resume work, so resume can complete before we finished * setting our codec back up, which can be very slow on I2C */ static void soc_resume_deferred(struct work_struct *work) { struct snd_soc_card *card = - container_of(work, struct snd_soc_card, deferred_resume_work); + container_of(work, struct snd_soc_card, + deferred_resume_work); struct snd_soc_pcm_runtime *rtd; struct snd_soc_component *component; int i; - /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, + /* + * our power state is still SNDRV_CTL_POWER_D3hot from suspend time, * so userspace apps are blocked from touching us */ @@ -699,6 +708,7 @@ int snd_soc_resume(struct device *dev) */ for_each_card_rtds(card, rtd) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + bus_control |= cpu_dai->driver->bus_control; } if (bus_control) { @@ -777,7 +787,7 @@ struct snd_soc_dai *snd_soc_find_dai( lockdep_assert_held(&client_mutex); - /* Find CPU DAI from registered DAIs*/ + /* Find CPU DAI from registered DAIs */ for_each_component(component) { if (!snd_soc_is_matching_component(dlc, component)) continue; @@ -795,7 +805,6 @@ struct snd_soc_dai *snd_soc_find_dai( } EXPORT_SYMBOL_GPL(snd_soc_find_dai); - /** * snd_soc_find_dai_link - Find a DAI link * @@ -918,7 +927,7 @@ static int soc_bind_dai_link(struct snd_soc_card *card, _err_defer: soc_free_pcm_runtime(rtd); - return -EPROBE_DEFER; + return -EPROBE_DEFER; } static void soc_remove_component(struct snd_soc_component *component) @@ -1074,7 +1083,7 @@ static int snd_soc_init_multicodec(struct snd_soc_card *card, } static int soc_init_dai_link(struct snd_soc_card *card, - struct snd_soc_dai_link *link) + struct snd_soc_dai_link *link) { int i, ret; struct snd_soc_dai_link_component *codec; @@ -1148,7 +1157,8 @@ static int soc_init_dai_link(struct snd_soc_card *card, void snd_soc_disconnect_sync(struct device *dev) { - struct snd_soc_component *component = snd_soc_lookup_component(dev, NULL); + struct snd_soc_component *component = + snd_soc_lookup_component(dev, NULL); if (!component || !component->card) return; @@ -1179,7 +1189,8 @@ int snd_soc_add_dai_link(struct snd_soc_card *card, } lockdep_assert_held(&client_mutex); - /* Notify the machine driver for extra initialization + /* + * Notify the machine driver for extra initialization * on the link created by topology. */ if (dai_link->dobj.type && card->add_dai_link) @@ -1214,7 +1225,8 @@ void snd_soc_remove_dai_link(struct snd_soc_card *card, } lockdep_assert_held(&client_mutex); - /* Notify the machine driver for extra destruction + /* + * Notify the machine driver for extra destruction * on the link created by topology. */ if (dai_link->dobj.type && card->remove_dai_link) @@ -1274,7 +1286,8 @@ static void soc_set_name_prefix(struct snd_soc_card *card, static int soc_probe_component(struct snd_soc_card *card, struct snd_soc_component *component) { - struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + struct snd_soc_dapm_context *dapm = + snd_soc_component_get_dapm(component); struct snd_soc_dai *dai; int ret; @@ -1406,8 +1419,7 @@ static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, } static int soc_probe_link_components(struct snd_soc_card *card, - struct snd_soc_pcm_runtime *rtd, - int order) + struct snd_soc_pcm_runtime *rtd, int order) { struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom; @@ -1434,6 +1446,7 @@ static int soc_probe_dai(struct snd_soc_dai *dai, int order) if (dai->driver->probe) { int ret = dai->driver->probe(dai); + if (ret < 0) { dev_err(dai->dev, "ASoC: failed to probe DAI %s: %d\n", dai->name, ret); @@ -1541,7 +1554,7 @@ static int soc_probe_link_dais(struct snd_soc_card *card, } if (cpu_dai->driver->compress_new) { - /*create compress_device"*/ + /* create compress_device" */ ret = cpu_dai->driver->compress_new(rtd, num); if (ret < 0) { dev_err(card->dev, "ASoC: can't create compress %s\n", @@ -1555,7 +1568,7 @@ static int soc_probe_link_dais(struct snd_soc_card *card, ret = soc_new_pcm(rtd, num); if (ret < 0) { dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", - dai_link->stream_name, ret); + dai_link->stream_name, ret); return ret; } ret = soc_link_dai_pcm_new(&cpu_dai, 1, rtd); @@ -1683,8 +1696,10 @@ int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, } } - /* Flip the polarity for the "CPU" end of a CODEC<->CODEC link */ - /* the component which has non_legacy_dai_naming is Codec */ + /* + * Flip the polarity for the "CPU" end of a CODEC<->CODEC link + * the component which has non_legacy_dai_naming is Codec + */ if (cpu_dai->component->driver->non_legacy_dai_naming) { unsigned int inv_dai_fmt; @@ -1718,9 +1733,9 @@ int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, } EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); - #ifdef CONFIG_DMI -/* Trim special characters, and replace '-' with '_' since '-' is used to +/* + * Trim special characters, and replace '-' with '_' since '-' is used to * separate different DMI fields in the card long name. Only number and * alphabet characters and a few separator characters are kept. */ @@ -1739,7 +1754,8 @@ static void cleanup_dmi_name(char *name) name[j] = '\0'; } -/* Check if a DMI field is valid, i.e. not containing any string +/* + * Check if a DMI field is valid, i.e. not containing any string * in the black list. */ static int is_dmi_valid(const char *field) @@ -1802,7 +1818,6 @@ int snd_soc_set_dmi_name(struct snd_soc_card *card, const char *flavour) return 0; } - snprintf(card->dmi_longname, sizeof(card->snd_card->longname), "%s", vendor); cleanup_dmi_name(card->dmi_longname); @@ -1818,7 +1833,8 @@ int snd_soc_set_dmi_name(struct snd_soc_card *card, const char *flavour) if (len < longname_buf_size) cleanup_dmi_name(card->dmi_longname + len); - /* some vendors like Lenovo may only put a self-explanatory + /* + * some vendors like Lenovo may only put a self-explanatory * name in the product version field */ product_version = dmi_get_system_info(DMI_PRODUCT_VERSION); @@ -1914,7 +1930,8 @@ static void soc_check_tplg_fes(struct snd_soc_card *card) dai_link->be_hw_params_fixup = component->driver->be_hw_params_fixup; - /* most BE links don't set stream name, so set it to + /* + * most BE links don't set stream name, so set it to * dai link name if it's NULL to help bind widgets. */ if (!dai_link->stream_name) @@ -1924,7 +1941,7 @@ static void soc_check_tplg_fes(struct snd_soc_card *card) /* Inform userspace we are using alternate topology */ if (component->driver->topology_name_prefix) { - /* topology shortname created ? */ + /* topology shortname created? */ if (!card->topology_shortname_created) { comp_drv = component->driver; @@ -2029,7 +2046,8 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) if (ret < 0) goto probe_dai_err; - /* Find new DAI links added during probing components and bind them. + /* + * Find new DAI links added during probing components and bind them. * Components with topology may bring new DAIs and DAI links. */ for_each_card_links(card, dai_link) { @@ -2061,7 +2079,8 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) snd_soc_dapm_connect_dai_link_widgets(card); if (card->controls) - snd_soc_add_card_controls(card, card->controls, card->num_controls); + snd_soc_add_card_controls(card, card->controls, + card->num_controls); if (card->dapm_routes) snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, @@ -2207,8 +2226,10 @@ int snd_soc_poweroff(struct device *dev) if (!card->instantiated) return 0; - /* Flush out pmdown_time work - we actually do want to run it - * now, we're shutting down so no imminent restart. */ + /* + * Flush out pmdown_time work - we actually do want to run it + * now, we're shutting down so no imminent restart. + */ for_each_card_rtds(card, rtd) flush_delayed_work(&rtd->delayed_work); @@ -2301,6 +2322,7 @@ static int snd_soc_add_controls(struct snd_card *card, struct device *dev, for (i = 0; i < num_controls; i++) { const struct snd_kcontrol_new *control = &controls[i]; + err = snd_ctl_add(card, snd_soc_cnew(control, data, control->name, prefix)); if (err < 0) { @@ -2418,8 +2440,9 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); * * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. */ -int snd_soc_component_set_sysclk(struct snd_soc_component *component, int clk_id, - int source, unsigned int freq, int dir) +int snd_soc_component_set_sysclk(struct snd_soc_component *component, + int clk_id, int source, unsigned int freq, + int dir) { if (component->driver->set_sysclk) return component->driver->set_sysclk(component, clk_id, source, @@ -2487,7 +2510,7 @@ int snd_soc_component_set_pll(struct snd_soc_component *component, int pll_id, { if (component->driver->set_pll) return component->driver->set_pll(component, pll_id, source, - freq_in, freq_out); + freq_in, freq_out); return -EINVAL; } @@ -2533,8 +2556,8 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); * Generates the TDM tx and rx slot default masks for DAI. */ static int snd_soc_xlate_tdm_slot_mask(unsigned int slots, - unsigned int *tx_mask, - unsigned int *rx_mask) + unsigned int *tx_mask, + unsigned int *rx_mask) { if (*tx_mask || *rx_mask) return 0; @@ -2684,7 +2707,7 @@ static int snd_soc_bind_card(struct snd_soc_card *card) return ret; /* deactivate pins to sleep state */ - for_each_card_rtds(card, rtd) { + for_each_card_rtds(card, rtd) { struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct snd_soc_dai *codec_dai; int j; @@ -2799,7 +2822,7 @@ static char *fmt_single_name(struct device *dev, int *id) } } else { - /* I2C component devices are named "bus-addr" */ + /* I2C component devices are named "bus-addr" */ if (sscanf(name, "%x-%x", &id1, &id2) == 2) { char tmp[NAME_SIZE]; @@ -2807,7 +2830,8 @@ static char *fmt_single_name(struct device *dev, int *id) *id = ((id1 & 0xffff) << 16) + id2; /* sanitize component name for DAI link creation */ - snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); + snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, + name); strlcpy(name, tmp, NAME_SIZE); } else *id = 0; @@ -2874,7 +2898,7 @@ static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, * component-less anymore. */ if (legacy_dai_naming && - (dai_drv->id == 0 || dai_drv->name == NULL)) { + (dai_drv->id == 0 || dai_drv->name == NULL)) { dai->name = fmt_single_name(dev, &dai->id); } else { dai->name = fmt_multiple_name(dev, dai_drv); @@ -2910,7 +2934,8 @@ static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, * @count: Number of DAIs */ static int snd_soc_register_dais(struct snd_soc_component *component, - struct snd_soc_dai_driver *dai_drv, size_t count) + struct snd_soc_dai_driver *dai_drv, + size_t count) { struct device *dev = component->dev; struct snd_soc_dai *dai; @@ -2921,8 +2946,8 @@ static int snd_soc_register_dais(struct snd_soc_component *component, for (i = 0; i < count; i++) { - dai = soc_add_dai(component, dai_drv + i, - count == 1 && !component->driver->non_legacy_dai_naming); + dai = soc_add_dai(component, dai_drv + i, count == 1 && + !component->driver->non_legacy_dai_naming); if (dai == NULL) { ret = -ENOMEM; goto err; @@ -2966,7 +2991,8 @@ int snd_soc_register_dai(struct snd_soc_component *component, if (!dai) return -ENOMEM; - /* Create the DAI widgets here. After adding DAIs, topology may + /* + * Create the DAI widgets here. After adding DAIs, topology may * also add routes that need these widgets as source or sink. */ ret = snd_soc_dapm_new_dai_widgets(dapm, dai); @@ -3048,7 +3074,8 @@ static void snd_soc_component_setup_regmap(struct snd_soc_component *component) #ifdef CONFIG_REGMAP /** - * snd_soc_component_init_regmap() - Initialize regmap instance for the component + * snd_soc_component_init_regmap() - Initialize regmap instance for the + * component * @component: The component for which to initialize the regmap instance * @regmap: The regmap instance that should be used by the component * @@ -3066,7 +3093,8 @@ void snd_soc_component_init_regmap(struct snd_soc_component *component, EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap); /** - * snd_soc_component_exit_regmap() - De-initialize regmap instance for the component + * snd_soc_component_exit_regmap() - De-initialize regmap instance for the + * component * @component: The component for which to de-initialize the regmap instance * * Calls regmap_exit() on the regmap instance associated to the component and @@ -3090,7 +3118,8 @@ static void snd_soc_component_add(struct snd_soc_component *component) if (!component->driver->write && !component->driver->read) { if (!component->regmap) - component->regmap = dev_get_regmap(component->dev, NULL); + component->regmap = dev_get_regmap(component->dev, + NULL); if (component->regmap) snd_soc_component_setup_regmap(component); } @@ -3235,23 +3264,24 @@ static int __snd_soc_unregister_component(struct device *dev) if (dev != component->dev) continue; - snd_soc_tplg_component_remove(component, SND_SOC_TPLG_INDEX_ALL); + snd_soc_tplg_component_remove(component, + SND_SOC_TPLG_INDEX_ALL); snd_soc_component_del_unlocked(component); found = 1; break; } mutex_unlock(&client_mutex); - if (found) { + if (found) snd_soc_component_cleanup(component); - } return found; } void snd_soc_unregister_component(struct device *dev) { - while (__snd_soc_unregister_component(dev)); + while (__snd_soc_unregister_component(dev)) + ; } EXPORT_SYMBOL_GPL(snd_soc_unregister_component); @@ -3832,7 +3862,7 @@ int snd_soc_of_get_dai_link_codecs(struct device *dev, for_each_link_codecs(dai_link, index, component) { ret = of_parse_phandle_with_args(of_node, name, "#sound-dai-cells", - index, &args); + index, &args); if (ret) goto err; component->of_node = args.np; From af16112457d8175b444baa9aac02558a1e1154b5 Mon Sep 17 00:00:00 2001 From: Olivier Moysan Date: Mon, 15 Oct 2018 16:03:33 +0200 Subject: [PATCH 1754/1762] ASoC: dt-bindings: add mclk provider support to stm32 sai add mclk provider support to stm32 sai Signed-off-by: Olivier Moysan Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/st,stm32-sai.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/st,stm32-sai.txt b/Documentation/devicetree/bindings/sound/st,stm32-sai.txt index 3a3fc506e43a..3f4467ff0aa2 100644 --- a/Documentation/devicetree/bindings/sound/st,stm32-sai.txt +++ b/Documentation/devicetree/bindings/sound/st,stm32-sai.txt @@ -31,7 +31,11 @@ SAI subnodes required properties: - reg: Base address and size of SAI sub-block register set. - clocks: Must contain one phandle and clock specifier pair for sai_ck which feeds the internal clock generator. + If the SAI shares a master clock, with another SAI set as MCLK + clock provider, SAI provider phandle must be specified here. - clock-names: Must contain "sai_ck". + Must also contain "MCLK", if SAI shares a master clock, + with a SAI set as MCLK clock provider. - dmas: see Documentation/devicetree/bindings/dma/stm32-dma.txt - dma-names: identifier string for each DMA request line "tx": if sai sub-block is configured as playback DAI @@ -51,6 +55,9 @@ SAI subnodes Optional properties: configured according to protocol defined in related DAI link node, such as i2s, left justified, right justified, dsp and pdm protocols. Note: ac97 protocol is not supported by SAI driver + - #clock-cells: should be 0. This property must be present if the SAI device + is a master clock provider, according to clocks bindings, described in + Documentation/devicetree/bindings/clock/clock-bindings.txt. The device node should contain one 'port' child node with one child 'endpoint' node, according to the bindings defined in Documentation/devicetree/bindings/ From 1c5083b37deaa99e07cc3082e190a509efd2a225 Mon Sep 17 00:00:00 2001 From: Olivier Moysan Date: Mon, 15 Oct 2018 16:03:34 +0200 Subject: [PATCH 1755/1762] ASoC: dt-bindings: add mclk support to cs42l51 Add clocks properties to cs42l51 Cirrus codec, to support master clock provider. Signed-off-by: Olivier Moysan Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/cs42l51.txt | 17 +++++++++++++++++ .../devicetree/bindings/trivial-devices.txt | 1 - 2 files changed, 17 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/sound/cs42l51.txt diff --git a/Documentation/devicetree/bindings/sound/cs42l51.txt b/Documentation/devicetree/bindings/sound/cs42l51.txt new file mode 100644 index 000000000000..4b5de33ce377 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/cs42l51.txt @@ -0,0 +1,17 @@ +CS42L51 audio CODEC + +Optional properties: + + - clocks : a list of phandles + clock-specifiers, one for each entry in + clock-names + + - clock-names : must contain "MCLK" + +Example: + +cs42l51: cs42l51@4a { + compatible = "cirrus,cs42l51"; + reg = <0x4a>; + clocks = <&mclk_prov>; + clock-names = "MCLK"; +}; diff --git a/Documentation/devicetree/bindings/trivial-devices.txt b/Documentation/devicetree/bindings/trivial-devices.txt index 763a2808a95c..69c934aec13b 100644 --- a/Documentation/devicetree/bindings/trivial-devices.txt +++ b/Documentation/devicetree/bindings/trivial-devices.txt @@ -35,7 +35,6 @@ at,24c08 i2c serial eeprom (24cxx) atmel,at97sc3204t i2c trusted platform module (TPM) capella,cm32181 CM32181: Ambient Light Sensor capella,cm3232 CM3232: Ambient Light Sensor -cirrus,cs42l51 Cirrus Logic CS42L51 audio codec dallas,ds1374 I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output dallas,ds1631 High-Precision Digital Thermometer dallas,ds1672 Dallas DS1672 Real-time Clock From 8307b2afd386ccce369821daa2196068c47fe8cd Mon Sep 17 00:00:00 2001 From: Olivier Moysan Date: Mon, 15 Oct 2018 16:03:35 +0200 Subject: [PATCH 1756/1762] ASoC: stm32: sai: set sai as mclk clock provider Add master clock generation support in STM32 SAI. The master clock provided by SAI can be used to feed a codec. Signed-off-by: Olivier Moysan Signed-off-by: Mark Brown --- sound/soc/stm/stm32_sai.h | 3 + sound/soc/stm/stm32_sai_sub.c | 275 +++++++++++++++++++++++++++++----- 2 files changed, 242 insertions(+), 36 deletions(-) diff --git a/sound/soc/stm/stm32_sai.h b/sound/soc/stm/stm32_sai.h index f25422174909..08de899c766b 100644 --- a/sound/soc/stm/stm32_sai.h +++ b/sound/soc/stm/stm32_sai.h @@ -91,6 +91,9 @@ #define SAI_XCR1_OSR_SHIFT 26 #define SAI_XCR1_OSR BIT(SAI_XCR1_OSR_SHIFT) +#define SAI_XCR1_MCKEN_SHIFT 27 +#define SAI_XCR1_MCKEN BIT(SAI_XCR1_MCKEN_SHIFT) + /******************* Bit definition for SAI_XCR2 register *******************/ #define SAI_XCR2_FTH_SHIFT 0 #define SAI_XCR2_FTH_MASK GENMASK(2, SAI_XCR2_FTH_SHIFT) diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c index 56a227e0bd71..31d22abd3204 100644 --- a/sound/soc/stm/stm32_sai_sub.c +++ b/sound/soc/stm/stm32_sai_sub.c @@ -17,6 +17,7 @@ */ #include +#include #include #include #include @@ -68,6 +69,8 @@ #define SAI_IEC60958_BLOCK_FRAMES 192 #define SAI_IEC60958_STATUS_BYTES 24 +#define SAI_MCLK_NAME_LEN 32 + /** * struct stm32_sai_sub_data - private data of SAI sub block (block A or B) * @pdev: device data pointer @@ -80,6 +83,7 @@ * @pdata: SAI block parent data pointer * @np_sync_provider: synchronization provider node * @sai_ck: kernel clock feeding the SAI clock generator + * @sai_mclk: master clock from SAI mclk provider * @phys_addr: SAI registers physical base address * @mclk_rate: SAI block master clock frequency (Hz). set at init * @id: SAI sub block id corresponding to sub-block A or B @@ -110,6 +114,7 @@ struct stm32_sai_sub_data { struct stm32_sai_data *pdata; struct device_node *np_sync_provider; struct clk *sai_ck; + struct clk *sai_mclk; dma_addr_t phys_addr; unsigned int mclk_rate; unsigned int id; @@ -251,6 +256,177 @@ static const struct snd_kcontrol_new iec958_ctls = { .put = snd_pcm_iec958_put, }; +struct stm32_sai_mclk_data { + struct clk_hw hw; + unsigned long freq; + struct stm32_sai_sub_data *sai_data; +}; + +#define to_mclk_data(_hw) container_of(_hw, struct stm32_sai_mclk_data, hw) +#define STM32_SAI_MAX_CLKS 1 + +static int stm32_sai_get_clk_div(struct stm32_sai_sub_data *sai, + unsigned long input_rate, + unsigned long output_rate) +{ + int version = sai->pdata->conf->version; + int div; + + div = DIV_ROUND_CLOSEST(input_rate, output_rate); + if (div > SAI_XCR1_MCKDIV_MAX(version)) { + dev_err(&sai->pdev->dev, "Divider %d out of range\n", div); + return -EINVAL; + } + dev_dbg(&sai->pdev->dev, "SAI divider %d\n", div); + + if (input_rate % div) + dev_dbg(&sai->pdev->dev, + "Rate not accurate. requested (%ld), actual (%ld)\n", + output_rate, input_rate / div); + + return div; +} + +static int stm32_sai_set_clk_div(struct stm32_sai_sub_data *sai, + unsigned int div) +{ + int version = sai->pdata->conf->version; + int ret, cr1, mask; + + if (div > SAI_XCR1_MCKDIV_MAX(version)) { + dev_err(&sai->pdev->dev, "Divider %d out of range\n", div); + return -EINVAL; + } + + mask = SAI_XCR1_MCKDIV_MASK(SAI_XCR1_MCKDIV_WIDTH(version)); + cr1 = SAI_XCR1_MCKDIV_SET(div); + ret = regmap_update_bits(sai->regmap, STM_SAI_CR1_REGX, mask, cr1); + if (ret < 0) + dev_err(&sai->pdev->dev, "Failed to update CR1 register\n"); + + return ret; +} + +static long stm32_sai_mclk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct stm32_sai_mclk_data *mclk = to_mclk_data(hw); + struct stm32_sai_sub_data *sai = mclk->sai_data; + int div; + + div = stm32_sai_get_clk_div(sai, *prate, rate); + if (div < 0) + return div; + + mclk->freq = *prate / div; + + return mclk->freq; +} + +static unsigned long stm32_sai_mclk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct stm32_sai_mclk_data *mclk = to_mclk_data(hw); + + return mclk->freq; +} + +static int stm32_sai_mclk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct stm32_sai_mclk_data *mclk = to_mclk_data(hw); + struct stm32_sai_sub_data *sai = mclk->sai_data; + unsigned int div; + int ret; + + div = stm32_sai_get_clk_div(sai, parent_rate, rate); + if (div < 0) + return div; + + ret = stm32_sai_set_clk_div(sai, div); + if (ret) + return ret; + + mclk->freq = rate; + + return 0; +} + +static int stm32_sai_mclk_enable(struct clk_hw *hw) +{ + struct stm32_sai_mclk_data *mclk = to_mclk_data(hw); + struct stm32_sai_sub_data *sai = mclk->sai_data; + + dev_dbg(&sai->pdev->dev, "Enable master clock\n"); + + return regmap_update_bits(sai->regmap, STM_SAI_CR1_REGX, + SAI_XCR1_MCKEN, SAI_XCR1_MCKEN); +} + +static void stm32_sai_mclk_disable(struct clk_hw *hw) +{ + struct stm32_sai_mclk_data *mclk = to_mclk_data(hw); + struct stm32_sai_sub_data *sai = mclk->sai_data; + + dev_dbg(&sai->pdev->dev, "Disable master clock\n"); + + regmap_update_bits(sai->regmap, STM_SAI_CR1_REGX, SAI_XCR1_MCKEN, 0); +} + +static const struct clk_ops mclk_ops = { + .enable = stm32_sai_mclk_enable, + .disable = stm32_sai_mclk_disable, + .recalc_rate = stm32_sai_mclk_recalc_rate, + .round_rate = stm32_sai_mclk_round_rate, + .set_rate = stm32_sai_mclk_set_rate, +}; + +static int stm32_sai_add_mclk_provider(struct stm32_sai_sub_data *sai) +{ + struct clk_hw *hw; + struct stm32_sai_mclk_data *mclk; + struct device *dev = &sai->pdev->dev; + const char *pname = __clk_get_name(sai->sai_ck); + char *mclk_name, *p, *s = (char *)pname; + int ret, i = 0; + + mclk = devm_kzalloc(dev, sizeof(mclk), GFP_KERNEL); + if (!mclk) + return -ENOMEM; + + mclk_name = devm_kcalloc(dev, sizeof(char), + SAI_MCLK_NAME_LEN, GFP_KERNEL); + if (!mclk_name) + return -ENOMEM; + + /* + * Forge mclk clock name from parent clock name and suffix. + * String after "_" char is stripped in parent name. + */ + p = mclk_name; + while (*s && *s != '_' && (i < (SAI_MCLK_NAME_LEN - 6))) { + *p++ = *s++; + i++; + } + STM_SAI_IS_SUB_A(sai) ? + strncat(p, "a_mclk", 6) : strncat(p, "b_mclk", 6); + + mclk->hw.init = CLK_HW_INIT(mclk_name, pname, &mclk_ops, 0); + mclk->sai_data = sai; + hw = &mclk->hw; + + dev_dbg(dev, "Register master clock %s\n", mclk_name); + ret = devm_clk_hw_register(&sai->pdev->dev, hw); + if (ret) { + dev_err(dev, "mclk register returned %d\n", ret); + return ret; + } + sai->sai_mclk = hw->clk; + + /* register mclk provider */ + return devm_of_clk_add_hw_provider(dev, of_clk_hw_simple_get, hw); +} + static irqreturn_t stm32_sai_isr(int irq, void *devid) { struct stm32_sai_sub_data *sai = (struct stm32_sai_sub_data *)devid; @@ -312,15 +488,25 @@ static int stm32_sai_set_sysclk(struct snd_soc_dai *cpu_dai, struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai); int ret; - if ((dir == SND_SOC_CLOCK_OUT) && sai->master) { + if (dir == SND_SOC_CLOCK_OUT) { ret = regmap_update_bits(sai->regmap, STM_SAI_CR1_REGX, SAI_XCR1_NODIV, (unsigned int)~SAI_XCR1_NODIV); if (ret < 0) return ret; - sai->mclk_rate = freq; dev_dbg(cpu_dai->dev, "SAI MCLK frequency is %uHz\n", freq); + sai->mclk_rate = freq; + + if (sai->sai_mclk) { + ret = clk_set_rate_exclusive(sai->sai_mclk, + sai->mclk_rate); + if (ret) { + dev_err(cpu_dai->dev, + "Could not set mclk rate\n"); + return ret; + } + } } return 0; @@ -715,15 +901,9 @@ static int stm32_sai_configure_clock(struct snd_soc_dai *cpu_dai, { struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai); int cr1, mask, div = 0; - int sai_clk_rate, mclk_ratio, den, ret; - int version = sai->pdata->conf->version; + int sai_clk_rate, mclk_ratio, den; unsigned int rate = params_rate(params); - if (!sai->mclk_rate) { - dev_err(cpu_dai->dev, "Mclk rate is null\n"); - return -EINVAL; - } - if (!(rate % 11025)) clk_set_parent(sai->sai_ck, sai->pdata->clk_x11k); else @@ -731,14 +911,22 @@ static int stm32_sai_configure_clock(struct snd_soc_dai *cpu_dai, sai_clk_rate = clk_get_rate(sai->sai_ck); if (STM_SAI_IS_F4(sai->pdata)) { - /* - * mclk_rate = 256 * fs - * MCKDIV = 0 if sai_ck < 3/2 * mclk_rate - * MCKDIV = sai_ck / (2 * mclk_rate) otherwise + /* mclk on (NODIV=0) + * mclk_rate = 256 * fs + * MCKDIV = 0 if sai_ck < 3/2 * mclk_rate + * MCKDIV = sai_ck / (2 * mclk_rate) otherwise + * mclk off (NODIV=1) + * MCKDIV ignored. sck = sai_ck */ - if (2 * sai_clk_rate >= 3 * sai->mclk_rate) - div = DIV_ROUND_CLOSEST(sai_clk_rate, - 2 * sai->mclk_rate); + if (!sai->mclk_rate) + return 0; + + if (2 * sai_clk_rate >= 3 * sai->mclk_rate) { + div = stm32_sai_get_clk_div(sai, sai_clk_rate, + 2 * sai->mclk_rate); + if (div < 0) + return div; + } } else { /* * TDM mode : @@ -750,8 +938,10 @@ static int stm32_sai_configure_clock(struct snd_soc_dai *cpu_dai, * Note: NOMCK/NODIV correspond to same bit. */ if (STM_SAI_PROTOCOL_IS_SPDIF(sai)) { - div = DIV_ROUND_CLOSEST(sai_clk_rate, - (params_rate(params) * 128)); + div = stm32_sai_get_clk_div(sai, sai_clk_rate, + rate * 128); + if (div < 0) + return div; } else { if (sai->mclk_rate) { mclk_ratio = sai->mclk_rate / rate; @@ -764,31 +954,22 @@ static int stm32_sai_configure_clock(struct snd_soc_dai *cpu_dai, mclk_ratio); return -EINVAL; } - div = DIV_ROUND_CLOSEST(sai_clk_rate, - sai->mclk_rate); + div = stm32_sai_get_clk_div(sai, sai_clk_rate, + sai->mclk_rate); + if (div < 0) + return div; } else { /* mclk-fs not set, master clock not active */ den = sai->fs_length * params_rate(params); - div = DIV_ROUND_CLOSEST(sai_clk_rate, den); + div = stm32_sai_get_clk_div(sai, sai_clk_rate, + den); + if (div < 0) + return div; } } } - if (div > SAI_XCR1_MCKDIV_MAX(version)) { - dev_err(cpu_dai->dev, "Divider %d out of range\n", div); - return -EINVAL; - } - dev_dbg(cpu_dai->dev, "SAI clock %d, divider %d\n", sai_clk_rate, div); - - mask = SAI_XCR1_MCKDIV_MASK(SAI_XCR1_MCKDIV_WIDTH(version)); - cr1 = SAI_XCR1_MCKDIV_SET(div); - ret = regmap_update_bits(sai->regmap, STM_SAI_CR1_REGX, mask, cr1); - if (ret < 0) { - dev_err(cpu_dai->dev, "Failed to update CR1 register\n"); - return ret; - } - - return 0; + return stm32_sai_set_clk_div(sai, div); } static int stm32_sai_hw_params(struct snd_pcm_substream *substream, @@ -881,6 +1062,9 @@ static void stm32_sai_shutdown(struct snd_pcm_substream *substream, SAI_XCR1_NODIV); clk_disable_unprepare(sai->sai_ck); + + clk_rate_exclusive_put(sai->sai_mclk); + sai->substream = NULL; } @@ -903,6 +1087,8 @@ static int stm32_sai_dai_probe(struct snd_soc_dai *cpu_dai) struct stm32_sai_sub_data *sai = dev_get_drvdata(cpu_dai->dev); int cr1 = 0, cr1_mask; + sai->cpu_dai = cpu_dai; + sai->dma_params.addr = (dma_addr_t)(sai->phys_addr + STM_SAI_DR_REGX); /* * DMA supports 4, 8 or 16 burst sizes. Burst size 4 is the best choice, @@ -1181,6 +1367,23 @@ static int stm32_sai_sub_parse_of(struct platform_device *pdev, return PTR_ERR(sai->sai_ck); } + if (STM_SAI_IS_F4(sai->pdata)) + return 0; + + /* Register mclk provider if requested */ + if (of_find_property(np, "#clock-cells", NULL)) { + ret = stm32_sai_add_mclk_provider(sai); + if (ret < 0) + return ret; + } else { + sai->sai_mclk = devm_clk_get(&pdev->dev, "MCLK"); + if (IS_ERR(sai->sai_mclk)) { + if (PTR_ERR(sai->sai_mclk) != -ENOENT) + return PTR_ERR(sai->sai_mclk); + sai->sai_mclk = NULL; + } + } + return 0; } From 5e8d63a726f8f2fef089515e9a501785cc67dcdc Mon Sep 17 00:00:00 2001 From: Olivier Moysan Date: Mon, 15 Oct 2018 16:03:36 +0200 Subject: [PATCH 1757/1762] ASoC: cs42l51: add mclk support Add MCLK dapm to allow configuration of cirrus CS42l51 codec as a master clock consumer. Signed-off-by: Olivier Moysan Signed-off-by: Mark Brown --- sound/soc/codecs/cs42l51.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/sound/soc/codecs/cs42l51.c b/sound/soc/codecs/cs42l51.c index 5080d7a3c279..eb40bff54cec 100644 --- a/sound/soc/codecs/cs42l51.c +++ b/sound/soc/codecs/cs42l51.c @@ -237,6 +237,10 @@ static const struct snd_soc_dapm_widget cs42l51_dapm_widgets[] = { &cs42l51_adcr_mux_controls), }; +static const struct snd_soc_dapm_widget cs42l51_dapm_mclk_widgets[] = { + SND_SOC_DAPM_CLOCK_SUPPLY("MCLK") +}; + static const struct snd_soc_dapm_route cs42l51_routes[] = { {"HPL", NULL, "Left DAC"}, {"HPR", NULL, "Right DAC"}, @@ -487,6 +491,10 @@ static struct snd_soc_dai_driver cs42l51_dai = { static int cs42l51_component_probe(struct snd_soc_component *component) { int ret, reg; + struct snd_soc_dapm_context *dapm; + + dapm = snd_soc_component_get_dapm(component); + snd_soc_dapm_new_controls(dapm, cs42l51_dapm_mclk_widgets, 1); /* * DAC configuration From 2a2aefa41ce48ace8e1e963cb10c3f5ff43aa994 Mon Sep 17 00:00:00 2001 From: Richard Fitzgerald Date: Fri, 19 Oct 2018 13:25:15 +0100 Subject: [PATCH 1758/1762] ASoC: wm_adsp: Rename memory fields in wm_adsp_buffer The wm_adsp_buffer struct is the control header of a circular buffer used to transfer data from the firmware over the control interface to an ALSA compressed stream. The original names of the fields pointing to the data buffer were based on ADSP2V2 memory layout where they correspond to {XM, XM, YM}. But this circular buffer could be used on other types of DSP core that have different memory region types. Also the names and description of the size fields were not very clear. The field names and descriptions have been changed to be generic and not imply any particular memory types. This patch updates the wm_adsp driver to the new field names. Signed-off-by: Richard Fitzgerald Signed-off-by: Mark Brown --- sound/soc/codecs/wm_adsp.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c index f61656070225..7ae10c632614 100644 --- a/sound/soc/codecs/wm_adsp.c +++ b/sound/soc/codecs/wm_adsp.c @@ -311,12 +311,12 @@ struct wm_adsp_alg_xm_struct { }; struct wm_adsp_buffer { - __be32 X_buf_base; /* XM base addr of first X area */ - __be32 X_buf_size; /* Size of 1st X area in words */ - __be32 X_buf_base2; /* XM base addr of 2nd X area */ - __be32 X_buf_brk; /* Total X size in words */ - __be32 Y_buf_base; /* YM base addr of Y area */ - __be32 wrap; /* Total size X and Y in words */ + __be32 buf1_base; /* Base addr of first buffer area */ + __be32 buf1_size; /* Size of buf1 area in DSP words */ + __be32 buf2_base; /* Base addr of 2nd buffer area */ + __be32 buf1_buf2_size; /* Size of buf1+buf2 in DSP words */ + __be32 buf3_base; /* Base addr of buf3 area */ + __be32 buf_total_size; /* Size of buf1+buf2+buf3 in DSP words */ __be32 high_water_mark; /* Point at which IRQ is asserted */ __be32 irq_count; /* bits 1-31 count IRQ assertions */ __be32 irq_ack; /* acked IRQ count, bit 0 enables IRQ */ @@ -393,18 +393,18 @@ struct wm_adsp_buffer_region_def { static const struct wm_adsp_buffer_region_def default_regions[] = { { .mem_type = WMFW_ADSP2_XM, - .base_offset = HOST_BUFFER_FIELD(X_buf_base), - .size_offset = HOST_BUFFER_FIELD(X_buf_size), + .base_offset = HOST_BUFFER_FIELD(buf1_base), + .size_offset = HOST_BUFFER_FIELD(buf1_size), }, { .mem_type = WMFW_ADSP2_XM, - .base_offset = HOST_BUFFER_FIELD(X_buf_base2), - .size_offset = HOST_BUFFER_FIELD(X_buf_brk), + .base_offset = HOST_BUFFER_FIELD(buf2_base), + .size_offset = HOST_BUFFER_FIELD(buf1_buf2_size), }, { .mem_type = WMFW_ADSP2_YM, - .base_offset = HOST_BUFFER_FIELD(Y_buf_base), - .size_offset = HOST_BUFFER_FIELD(wrap), + .base_offset = HOST_BUFFER_FIELD(buf3_base), + .size_offset = HOST_BUFFER_FIELD(buf_total_size), }, }; From e3a360b8cdede74d25807fc405e5d8bfb025692f Mon Sep 17 00:00:00 2001 From: Richard Fitzgerald Date: Fri, 19 Oct 2018 13:25:16 +0100 Subject: [PATCH 1759/1762] ASoC: wm_adsp: Log addresses as 8 digits in wm_adsp_buffer_populate Increase the address value width in the debug log from 4 digits to 8 digits to allow for DSP cores with larger memory address ranges. Signed-off-by: Richard Fitzgerald Signed-off-by: Mark Brown --- sound/soc/codecs/wm_adsp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c index 7ae10c632614..a53dc174bbf0 100644 --- a/sound/soc/codecs/wm_adsp.c +++ b/sound/soc/codecs/wm_adsp.c @@ -3345,7 +3345,7 @@ static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf) region->cumulative_size = offset; adsp_dbg(buf->dsp, - "region=%d type=%d base=%04x off=%04x size=%04x\n", + "region=%d type=%d base=%08x off=%08x size=%08x\n", i, region->mem_type, region->base_addr, region->offset, region->cumulative_size); } From 318e741ee13b5a72f3051d9bb6852b1f4d02d0bb Mon Sep 17 00:00:00 2001 From: Olivier Moysan Date: Fri, 19 Oct 2018 17:56:35 +0200 Subject: [PATCH 1760/1762] ASoC: cs42l51: fix mclk support The MCLK clock is made optional for cs42l51 codec. However, ASoC DAPM clock supply widget, expects the clock to be defined unconditionally. Register MCLK DAPM conditionally in codec driver, depending on clock presence in DT. Fixes: 5e8d63a726f8 ("ASoC: cs42l51: add mclk support") Signed-off-by: Olivier Moysan Signed-off-by: Mark Brown --- sound/soc/codecs/cs42l51.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/cs42l51.c b/sound/soc/codecs/cs42l51.c index eb40bff54cec..fd2bd74024c1 100644 --- a/sound/soc/codecs/cs42l51.c +++ b/sound/soc/codecs/cs42l51.c @@ -21,6 +21,7 @@ * - master mode *NOT* supported */ +#include #include #include #include @@ -41,6 +42,7 @@ enum master_slave_mode { struct cs42l51_private { unsigned int mclk; + struct clk *mclk_handle; unsigned int audio_mode; /* The mode (I2S or left-justified) */ enum master_slave_mode func; }; @@ -492,9 +494,13 @@ static int cs42l51_component_probe(struct snd_soc_component *component) { int ret, reg; struct snd_soc_dapm_context *dapm; + struct cs42l51_private *cs42l51; + cs42l51 = snd_soc_component_get_drvdata(component); dapm = snd_soc_component_get_dapm(component); - snd_soc_dapm_new_controls(dapm, cs42l51_dapm_mclk_widgets, 1); + + if (cs42l51->mclk_handle) + snd_soc_dapm_new_controls(dapm, cs42l51_dapm_mclk_widgets, 1); /* * DAC configuration @@ -548,6 +554,13 @@ int cs42l51_probe(struct device *dev, struct regmap *regmap) dev_set_drvdata(dev, cs42l51); + cs42l51->mclk_handle = devm_clk_get(dev, "MCLK"); + if (IS_ERR(cs42l51->mclk_handle)) { + if (PTR_ERR(cs42l51->mclk_handle) != -ENOENT) + return PTR_ERR(cs42l51->mclk_handle); + cs42l51->mclk_handle = NULL; + } + /* Verify that we have a CS42L51 */ ret = regmap_read(regmap, CS42L51_CHIP_REV_ID, &val); if (ret < 0) { From c5d09485def41cab9e75ba23abbf87080183183c Mon Sep 17 00:00:00 2001 From: Lucas Tanure Date: Fri, 19 Oct 2018 17:44:22 +0100 Subject: [PATCH 1761/1762] ASoC: wm2000: Remove wm2000_read helper function The return type "unsigned int" was used by the wm2000_read() function despite of the aspect that it will eventually return a negative error code. The resulting function doesn't add much to the code, so replace wm2000_read with regmap_read. Signed-off-by: Lucas Tanure Acked-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/codecs/wm2000.c | 54 ++++++++++++++++++++++----------------- 1 file changed, 30 insertions(+), 24 deletions(-) diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c index c5ae07234a00..bba330e30162 100644 --- a/sound/soc/codecs/wm2000.c +++ b/sound/soc/codecs/wm2000.c @@ -88,19 +88,6 @@ static int wm2000_write(struct i2c_client *i2c, unsigned int reg, return regmap_write(wm2000->regmap, reg, value); } -static unsigned int wm2000_read(struct i2c_client *i2c, unsigned int r) -{ - struct wm2000_priv *wm2000 = i2c_get_clientdata(i2c); - unsigned int val; - int ret; - - ret = regmap_read(wm2000->regmap, r, &val); - if (ret < 0) - return -1; - - return val; -} - static void wm2000_reset(struct wm2000_priv *wm2000) { struct i2c_client *i2c = wm2000->i2c; @@ -115,14 +102,15 @@ static void wm2000_reset(struct wm2000_priv *wm2000) static int wm2000_poll_bit(struct i2c_client *i2c, unsigned int reg, u8 mask) { + struct wm2000_priv *wm2000 = i2c_get_clientdata(i2c); int timeout = 4000; - int val; + unsigned int val; - val = wm2000_read(i2c, reg); + regmap_read(wm2000->regmap, reg, &val); while (!(val & mask) && --timeout) { msleep(1); - val = wm2000_read(i2c, reg); + regmap_read(wm2000->regmap, reg, &val); } if (timeout == 0) @@ -135,6 +123,7 @@ static int wm2000_power_up(struct i2c_client *i2c, int analogue) { struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); unsigned long rate; + unsigned int val; int ret; if (WARN_ON(wm2000->anc_mode != ANC_OFF)) @@ -213,12 +202,17 @@ static int wm2000_power_up(struct i2c_client *i2c, int analogue) WM2000_MODE_THERMAL_ENABLE); } - ret = wm2000_read(i2c, WM2000_REG_SPEECH_CLARITY); + ret = regmap_read(wm2000->regmap, WM2000_REG_SPEECH_CLARITY, &val); + if (ret != 0) { + dev_err(&i2c->dev, "Unable to read Speech Clarity: %d\n", ret); + regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); + return ret; + } if (wm2000->speech_clarity) - ret |= WM2000_SPEECH_CLARITY; + val |= WM2000_SPEECH_CLARITY; else - ret &= ~WM2000_SPEECH_CLARITY; - wm2000_write(i2c, WM2000_REG_SPEECH_CLARITY, ret); + val &= ~WM2000_SPEECH_CLARITY; + wm2000_write(i2c, WM2000_REG_SPEECH_CLARITY, val); wm2000_write(i2c, WM2000_REG_SYS_START0, 0x33); wm2000_write(i2c, WM2000_REG_SYS_START1, 0x02); @@ -824,7 +818,7 @@ static int wm2000_i2c_probe(struct i2c_client *i2c, const char *filename; const struct firmware *fw = NULL; int ret, i; - int reg; + unsigned int reg; u16 id; wm2000 = devm_kzalloc(&i2c->dev, sizeof(*wm2000), GFP_KERNEL); @@ -860,9 +854,17 @@ static int wm2000_i2c_probe(struct i2c_client *i2c, } /* Verify that this is a WM2000 */ - reg = wm2000_read(i2c, WM2000_REG_ID1); + ret = regmap_read(wm2000->regmap, WM2000_REG_ID1, ®); + if (ret != 0) { + dev_err(&i2c->dev, "Unable to read ID1: %d\n", ret); + return ret; + } id = reg << 8; - reg = wm2000_read(i2c, WM2000_REG_ID2); + ret = regmap_read(wm2000->regmap, WM2000_REG_ID2, ®); + if (ret != 0) { + dev_err(&i2c->dev, "Unable to read ID2: %d\n", ret); + return ret; + } id |= reg & 0xff; if (id != 0x2000) { @@ -871,7 +873,11 @@ static int wm2000_i2c_probe(struct i2c_client *i2c, goto err_supplies; } - reg = wm2000_read(i2c, WM2000_REG_REVISON); + ret = regmap_read(wm2000->regmap, WM2000_REG_REVISON, ®); + if (ret != 0) { + dev_err(&i2c->dev, "Unable to read Revision: %d\n", ret); + return ret; + } dev_info(&i2c->dev, "revision %c\n", reg + 'A'); wm2000->mclk = devm_clk_get(&i2c->dev, "MCLK"); From 7f91e2af1a4a2c34fc2e8fb046c722e1a9c85399 Mon Sep 17 00:00:00 2001 From: Vasily Khoruzhick Date: Sun, 21 Oct 2018 08:39:11 -0700 Subject: [PATCH 1762/1762] ASoC: sun4i-i2s: move code from startup/shutdown hooks into pm_runtime hooks startup() and shutdown() hooks are called for both substreams, so stopping either substream when another is running breaks the latter. E.g. playback breaks if capture is stopped when playback is running. Move code from startup() and shutdown() to resume() and suspend() hooks respectively to fix this issue Signed-off-by: Vasily Khoruzhick Acked-by: Maxime Ripard Signed-off-by: Mark Brown --- sound/soc/sunxi/sun4i-i2s.c | 61 +++++++++++++++---------------------- 1 file changed, 25 insertions(+), 36 deletions(-) diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c index c63d226e2436..d5ec1a20499d 100644 --- a/sound/soc/sunxi/sun4i-i2s.c +++ b/sound/soc/sunxi/sun4i-i2s.c @@ -644,40 +644,6 @@ static int sun4i_i2s_trigger(struct snd_pcm_substream *substream, int cmd, return 0; } -static int sun4i_i2s_startup(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai); - - /* Enable the whole hardware block */ - regmap_update_bits(i2s->regmap, SUN4I_I2S_CTRL_REG, - SUN4I_I2S_CTRL_GL_EN, SUN4I_I2S_CTRL_GL_EN); - - /* Enable the first output line */ - regmap_update_bits(i2s->regmap, SUN4I_I2S_CTRL_REG, - SUN4I_I2S_CTRL_SDO_EN_MASK, - SUN4I_I2S_CTRL_SDO_EN(0)); - - - return clk_prepare_enable(i2s->mod_clk); -} - -static void sun4i_i2s_shutdown(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai); - - clk_disable_unprepare(i2s->mod_clk); - - /* Disable our output lines */ - regmap_update_bits(i2s->regmap, SUN4I_I2S_CTRL_REG, - SUN4I_I2S_CTRL_SDO_EN_MASK, 0); - - /* Disable the whole hardware block */ - regmap_update_bits(i2s->regmap, SUN4I_I2S_CTRL_REG, - SUN4I_I2S_CTRL_GL_EN, 0); -} - static int sun4i_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir) { @@ -695,8 +661,6 @@ static const struct snd_soc_dai_ops sun4i_i2s_dai_ops = { .hw_params = sun4i_i2s_hw_params, .set_fmt = sun4i_i2s_set_fmt, .set_sysclk = sun4i_i2s_set_sysclk, - .shutdown = sun4i_i2s_shutdown, - .startup = sun4i_i2s_startup, .trigger = sun4i_i2s_trigger, }; @@ -869,6 +833,21 @@ static int sun4i_i2s_runtime_resume(struct device *dev) goto err_disable_clk; } + /* Enable the whole hardware block */ + regmap_update_bits(i2s->regmap, SUN4I_I2S_CTRL_REG, + SUN4I_I2S_CTRL_GL_EN, SUN4I_I2S_CTRL_GL_EN); + + /* Enable the first output line */ + regmap_update_bits(i2s->regmap, SUN4I_I2S_CTRL_REG, + SUN4I_I2S_CTRL_SDO_EN_MASK, + SUN4I_I2S_CTRL_SDO_EN(0)); + + ret = clk_prepare_enable(i2s->mod_clk); + if (ret) { + dev_err(dev, "Failed to enable module clock\n"); + goto err_disable_clk; + } + return 0; err_disable_clk: @@ -880,6 +859,16 @@ static int sun4i_i2s_runtime_suspend(struct device *dev) { struct sun4i_i2s *i2s = dev_get_drvdata(dev); + clk_disable_unprepare(i2s->mod_clk); + + /* Disable our output lines */ + regmap_update_bits(i2s->regmap, SUN4I_I2S_CTRL_REG, + SUN4I_I2S_CTRL_SDO_EN_MASK, 0); + + /* Disable the whole hardware block */ + regmap_update_bits(i2s->regmap, SUN4I_I2S_CTRL_REG, + SUN4I_I2S_CTRL_GL_EN, 0); + regcache_cache_only(i2s->regmap, true); clk_disable_unprepare(i2s->bus_clk);