Commit Graph

679113 Commits

Author SHA1 Message Date
Yan, Zheng
56199016e8 ceph: use current_kernel_time() to get request time stamp
ceph uses ktime_get_real_ts() to get request time stamp. In most
other cases, current_kernel_time() is used to get time stamp for
filesystem operations (called by current_time()).

There is granularity difference between ktime_get_real_ts() and
current_kernel_time(). The later one can be up to one jiffy behind
the former one. This can causes inode's ctime to go back.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2017-06-14 19:33:23 +02:00
Luis Henriques
03f219041f ceph: check i_nlink while converting a file handle to dentry
Converting a file handle to a dentry can be done call after the inode
unlink.  This means that __fh_to_dentry() requires an extra check to
verify the number of links is not 0.

The issue can be easily reproduced using xfstest generic/426, which does
something like:

    name_to_handle_at(&fh)
    echo 3 > /proc/sys/vm/drop_caches
    unlink()
    open_by_handle_at(&fh)

The call to open_by_handle_at() should fail, as the file doesn't exist
anymore.

Link: http://tracker.ceph.com/issues/19958
Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2017-06-14 19:32:43 +02:00
Jia-Ju Bai
07d432bb97 rxe: Fix a sleep-in-atomic bug in post_one_send
The driver may sleep under a spin lock, and the function call path is:
post_one_send (acquire the lock by spin_lock_irqsave)
  init_send_wqe
    copy_from_user --> may sleep

There is no flow that makes "qp->is_user" true, and copy_from_user may
cause bug when a non-user pointer is used. So the lines of copy_from_user
and check of "qp->is_user" are removed.

Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-14 13:02:01 -04:00
Ram Amrani
e57bb6be5e RDMA/qedr: Add 64KB PAGE_SIZE support to user-space queues
Add 64KB PAGE_SIZE support to user-space CQ, SQ and RQ queues.
De-facto it means that code was added to translate 64KB
pages to smaller 4KB pages that the FW can handle. Otherwise,
the FW would wrap (or jump to the next page)  when reaching 4KB
while the user space library will continue on the same large page.

Note that MR code remains as is since the FW supports larger pages
for MRs.

Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-14 13:02:01 -04:00
Michal Kalderon
dac2738607 RDMA/qedr: Initialize byte_len in WC of READ and SEND commands
Initialize byte_len in work completion of RDMA_READ and RDMA_SEND.
Exposed by uDAPL application.

Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-14 13:02:00 -04:00
Selvin Xavier
86816a00ca RDMA/bnxt_re: Remove FMR support
Some issues observed with FMR implementation
while running stress traffic. So removing the
FMR verbs support for now.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-14 13:02:00 -04:00
Devesh Sharma
018cf5995d RDMA/bnxt_re: Fix RQE posting logic
This patch adds code to ring RQ Doorbell aggressively
so that the adapter can DMA RQ buffers sooner, instead
of DMA all WQEs in the post_recv WR list together at the
end of the post_recv verb.
Also use spinlock to serialize RQ posting

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-14 13:01:59 -04:00
Somnath Kotur
3fb755b3d5 RDMA/bnxt_re: Add HW workaround for avoiding stall for UD QPs
HW stalls out after 0x800000 WQEs are posted for UD QPs.
To workaround this problem, driver will send a modify_qp cmd
to the HW at around the halfway mark(0x400000) so that FW
can accordingly modify the QP context in the HW to prevent this
stall.
This workaround needs to be done for UD, QP1 and Raw Ethertype
packets. Added a counter to keep track of WQEs posted during post_send.

Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-14 13:01:58 -04:00
Selvin Xavier
1c980b010f RDMA/bnxt_re: Dereg MR in FW before freeing the fast_reg_page_list
If the host buffers are freed before destroying MR in HW,
HW could try accessing these buffers. This could cause a host
crash. Fixing the code to avoid this condition.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-14 13:01:58 -04:00
Eddie Wai
9152e0b722 RDMA/bnxt_re: HW workarounds for handling specific conditions
This patch implements the following HW workarounds

1. The SQ depth needs to be augmented  by 128 + 1 to avoid running
   into an Out of order CQE issue
2. Workaround to handle the problem where the HW fast path engine continues
   to access DMA memory in retranmission mode even after the WQE has
   already been completed. If the HW reports this condition, driver detects
   it and posts a Fence WQE. The driver stops reporting the completions
   to stack until it receives completion  for Fence WQE.

Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-14 13:01:57 -04:00
Mario Kleiner
55f61a040e drm/radeon: Fix overflow of watermark calcs at > 4k resolutions.
Commit e6b9a6c84b
("drm/radeon: Make display watermark calculations more accurate")
made watermark calculations more accurate, but not for > 4k
resolutions on 32-Bit architectures, as it introduced an integer
overflow for those setups and resolutions.

Fix this by proper u64 casting and division.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Fixes: e6b9a6c84b ("drm/radeon: Make display watermark calculations more accurate")
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-14 09:25:58 -04:00
Mario Kleiner
bea1041393 drm/amdgpu: Fix overflow of watermark calcs at > 4k resolutions.
Commit d63c277dc6
("drm/amdgpu: Make display watermark calculations more accurate")
made watermark calculations more accurate, but not for > 4k
resolutions on 32-Bit architectures, as it introduced an integer
overflow for those setups and resolutions.

Fix this by proper u64 casting and division.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Fixes: d63c277dc6 ("drm/amdgpu: Make display watermark calculations more accurate")
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-14 09:25:05 -04:00
Christian König
c0f83da96b drm/radeon: fix "force the UVD DPB into VRAM as well"
The DPB must be in VRAM, but not in the first segment.

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Arthur Marsh <arthur.marsh@internode.on.net>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-14 09:23:42 -04:00
Dan Carpenter
ed6456afef Staging: rtl8723bs: fix an error code in isFileReadable()
The caller only cares about zero vs non-zero so this code actually works
fine but we should be returning a negative error code instead of a valid
pointer casted to int.

Fixes: 554c0a3abf ("staging: Add rtl8723bs sdio wifi driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-14 12:43:54 +02:00
Mike Gerow
b429f96aa5 video: fbdev: udlfb: drop log level for blanking
Drop log level for blanking from info to debug. Xorg likes to habitually
unblank when already unblanked and this can fill up logs over a long period
of time.

Signed-off-by: Mike Gerow <gerow@google.com>
Cc: bernie@plugable.com
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-06-14 12:40:36 +02:00
Arnd Bergmann
484c7bbf26 video: fbdev: via: remove possibly unused variables
When CONFIG_PROC_FS is disabled, we get warnings about unused variables
as remove_proc_entry() evaluates to an empty macro.

drivers/video/fbdev/via/viafbdev.c: In function 'viafb_remove_proc':
drivers/video/fbdev/via/viafbdev.c:1635:4: error: unused variable 'iga2_entry' [-Werror=unused-variable]
drivers/video/fbdev/via/viafbdev.c:1634:4: error: unused variable 'iga1_entry' [-Werror=unused-variable]

These are easy to avoid by using the pointer from the structure.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-06-14 12:40:36 +02:00
Johan Hovold
1235185521 video: fbdev: add missing USB-descriptor endianness conversions
Add the missing endianness conversions when printing the USB
device-descriptor idVendor, idProduct and bcdDevice fields during probe.

Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Cc: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-06-14 12:40:36 +02:00
Arnd Bergmann
c544ad18bd video: fbdev: avoid int-in-bool-context warning
gcc-7 suspects this code might be wrong because we use the
result of a multiplication as a bool:

drivers/video/fbdev/core/fbmon.c: In function 'fb_edid_add_monspecs':
drivers/video/fbdev/core/fbmon.c:1051:84: error: '*' in boolean context, suggest '&&' instead [-Werror=int-in-bool-context]

It's actually fine, so let's add a comparison to zero to make
that clear to the compiler too.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-06-14 12:40:36 +02:00
Greg Kroah-Hartman
64c667fe29 Second set of IIO fixes for the 4.12 cycle.
* buffer-dma / buffer-dmaengine
   - Fix missing include of buffer_impl.h after the split of buffer.h.
   No driver in mainline is currently using these buffers so it wasn't
   picked up by automated build tests.
 
 * ad7152
   - Fix a deadlock in ad7152_write_raw_samp_freq as the chip_state lock
     was already held.
 * inv_mpu6050
   - Add low pass filter setting for chips newer than the MPU6500.  None of
     use previously picked up no the fact it was different on these newer
     chips.  It is separately set for the acceleration on these parts.  There
     is no normal reason to set it differently so the userspace interface
     remains the same as for early parts.
 * meson-saradc:
   - Fix a potential crash by NULL pointer dereference in
     meson_sar_adc_clear_fifo.
 * mxs-lradc
   - Fix a return value check where IS_ERR is used on a function that returns
     NULL on error
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Merge tag 'iio-fixes-for-4.12b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

Second set of IIO fixes for the 4.12 cycle.

* buffer-dma / buffer-dmaengine
  - Fix missing include of buffer_impl.h after the split of buffer.h.
  No driver in mainline is currently using these buffers so it wasn't
  picked up by automated build tests.

* ad7152
  - Fix a deadlock in ad7152_write_raw_samp_freq as the chip_state lock
    was already held.
* inv_mpu6050
  - Add low pass filter setting for chips newer than the MPU6500.  None of
    use previously picked up no the fact it was different on these newer
    chips.  It is separately set for the acceleration on these parts.  There
    is no normal reason to set it differently so the userspace interface
    remains the same as for early parts.
* meson-saradc:
  - Fix a potential crash by NULL pointer dereference in
    meson_sar_adc_clear_fifo.
* mxs-lradc
  - Fix a return value check where IS_ERR is used on a function that returns
    NULL on error
2017-06-14 12:00:41 +02:00
Alistair Popple
377aa6b0ef powerpc/npu-dma: Remove spurious WARN_ON when a PCI device has no of_node
Commit 4c3b89effc ("powerpc/powernv: Add sanity checks to
pnv_pci_get_{gpu|npu}_dev") introduced explicit warnings in
pnv_pci_get_npu_dev() when a PCIe device has no associated device-tree
node. However not all PCIe devices have an of_node and
pnv_pci_get_npu_dev() gets indirectly called at least once for every
PCIe device in the system. This results in spurious WARN_ON()'s so
remove it.

The same situation should not exist for pnv_pci_get_gpu_dev() as any
NPU based PCIe device requires a device-tree node.

Fixes: 4c3b89effc ("powerpc/powernv: Add sanity checks to pnv_pci_get_{gpu|npu}_dev")
Reported-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-06-14 15:23:19 +10:00
Mateusz Jurczyk
20a3d5bf5e caif: Add sockaddr length check before accessing sa_family in connect handler
Verify that the caller-provided sockaddr structure is large enough to
contain the sa_family field, before accessing it in the connect()
handler of the AF_CAIF socket. Since the syscall doesn't enforce a minimum
size of the corresponding memory region, very short sockaddrs (zero or one
byte long) result in operating on uninitialized memory while referencing
sa_family.

Signed-off-by: Mateusz Jurczyk <mjurczyk@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 16:16:11 -04:00
Devesh Sharma
cc1ec769b8 RDMA/bnxt_re: Fixing the Control path command and response handling
Fixing a concurrency issue with creq handling. Each caller
was given a globally managed crsq element, which was
accessed outside a lock. This could result in corruption,
if lot of applications are simultaneously issuing Control Path
commands. Now, each caller will provide its own response buffer
and the responses will be copied under a lock.
Also, Fixing the queue full condition check for the CMDQ.

As a part of these changes, the control path code is refactored
to remove the code replication in the response status checking.

Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-13 16:09:04 -04:00
Phil Reid
7981dc07fe iio: buffer-dmaengine: Add missing header buffer_impl.h
Add buffer_impl.h as buffer.h was split into interface for using and
for internals. Without this industrialio-buffer-dmaengine.c fails
to compile.

Fixes:
commit 33dd94cb97 ("iio:buffer.h - split
into buffer.h and buffer_impl.h")

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-06-13 20:56:05 +01:00
Phil Reid
838519b89f iio: buffer-dma: Add missing header buffer_impl.h
Add buffer_impl.h as buffer.h was split into interface for using and
for internals. Without this industrialio-buffer-dma.c fails
to compile.

Fixes:
commit 33dd94cb97 ("iio:buffer.h - split
into buffer.h and buffer_impl.h")

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-06-13 20:55:59 +01:00
Zhang Bo
436c4c45b5 Revert "leds: handle suspend/resume in heartbeat trigger"
This reverts commit 5ab92a7cb8.

System cannot enter suspend mode because of heartbeat led trigger.
In autosleep_wq, try_to_suspend function will try to enter suspend
mode in specific period. it will get wakeup_count then call pm_notifier
chain callback function and freeze processes.
Heartbeat_pm_notifier is called and it call led_trigger_unregister to
change the trigger of led device to none. It will send uevent message
and the wakeup source count changed. As wakeup_count changed, suspend
will abort.

Fixes: 5ab92a7cb8 ("leds: handle suspend/resume in heartbeat trigger")
Signed-off-by: Zhang Bo <bo.zhang@nxp.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2017-06-13 20:37:01 +02:00
Jonas Gorski
4f02b50ece leds: bcm6328: fix signal source assignment for leds 4 to 7
Each nibble represents 4 LEDs, and in case of the higher register, bit 0
represents LED 4, so we need to use modulus for the LED number as well.

Fixes: fd7b025a23 ("leds: add BCM6328 LED driver")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2017-06-13 20:36:56 +02:00
Priyalee Kushwaha
bf5d008164 platform/x86: intel_telemetry_debugfs: fix oops when load/unload module
This fixes an oops found while testing load/unload of the
intel_telemetry_debugfs module. module_init uses register_pm_notifier
for PM callbacks, but unregister_pm_notifier was missing from
module_exit.

 [ 97.481860] BUG: unable to handle kernel paging request at ffffffffa006f010
 [ 97.489742] IP: blocking_notifier_chain_register+0x3a/0xa0
 [ 97.495898] PGD 2e0a067
 [ 97.495899] PUD 2e0b063
 [ 97.498737] PMD 179e29067
 [ 97.501573] PTE 0

 [ 97.508423] Oops: 0000 1 PREEMPT SMP
 [ 97.512724] Modules linked in: intel_telemetry_debugfs intel_rapl gpio_keys dwc3 udc_core intel_telemetry_pltdrv intel_punit_ipc intel_telemetry_core rtc_cmos efivars x86_pkg_temp_thermal iwlwifi snd_hda_codec_hdmi soc_button_array btusb cfg80211 btrtl mei_me hci_uart btbcm mei btintel i915 bluetooth intel_pmc_ipc snd_hda_intel spi_pxa2xx_platform snd_hda_codec dwc3_pci snd_hda_core tpm_tis tpm_tis_core tpm efivarfs
 [ 97.558453] CPU: 0 PID: 889 Comm: modprobe Not tainted 4.11.0-rc6-intel-dev-bkc #1
 [ 97.566950] Hardware name: Intel Corp. Joule DVT3/SDS, BIOS GTPP181A.X64.0143.B30.1701132137 01/13/2017
 [ 97.577518] task: ffff8801793a21c0 task.stack: ffff8801793f0000
 [ 97.584162] RIP: 0010:blocking_notifier_chain_register+0x3a/0xa0
 [ 97.590903] RSP: 0018:ffff8801793f3c58 EFLAGS: 00010286
 [ 97.596802] RAX: ffffffffa006f000 RBX: ffffffff81e3ea20 RCX: 0000000000000000
 [ 97.604812] RDX: ffff880179eaf210 RSI: ffffffffa0131000 RDI: ffffffff81e3ea20
 [ 97.612821] RBP: ffff8801793f3c68 R08: 0000000000000006 R09: 000000000000005c
 [ 97.620847] R10: 0000000000000000 R11: 0000000000000006 R12: ffffffffa0131000
 [ 97.628855] R13: 0000000000000000 R14: ffff880176e35f48 R15: ffff8801793f3ea8
 [ 97.636865] FS: 00007f7eeba07700(0000) GS:ffff88017fc00000(0000) knlGS:0000000000000000
 [ 97.645948] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 [ 97.652423] CR2: ffffffffa006f010 CR3: 00000001775ef000 CR4: 00000000003406f0
 [ 97.660423] Call Trace:
 [ 97.663166] ? 0xffffffffa0031000
 [ 97.666885] register_pm_notifier+0x18/0x20
 [ 97.671581] telemetry_debugfs_init+0x92/0x1000

Signed-off-by: Priyalee Kushwaha <priyalee.kushwaha@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-13 10:57:54 -07:00
David S. Miller
7de84403a2 Here are two batman-adv bugfixes:
- fix rx packet counters for local ARP replies, by Sven Eckelmann
 
  - fix memory leaks for unicast packetes received from another gateway
    in bridge loop avoidance, by Andreas Pape
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Merge tag 'batadv-net-for-davem-20170613' of git://git.open-mesh.org/linux-merge

Simon Wunderlich says:

====================
Here are two batman-adv bugfixes:

 - fix rx packet counters for local ARP replies, by Sven Eckelmann

 - fix memory leaks for unicast packetes received from another gateway
   in bridge loop avoidance, by Andreas Pape
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 13:46:01 -04:00
David S. Miller
c5549ee401 Some fixes:
* Avi fixes some fallout from my mac80211 RX flags changes
  * Emmanuel fixes an issue with adhering to the spec, and
    an oversight in the SMPS management code
  * Jason's patch makes mac80211 use constant-time memory
    comparisons for message authentication, to avoid having
    potentially observable timing differences
  * my fix makes mac80211 set the basic rates bitmap before
    the channel so the next update to the driver has more
    consistent data - this required another rework patch to
    remove some useless 5/10 MHz code that can never be hit
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Merge tag 'mac80211-for-davem-2017-06-13' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Some fixes:
 * Avi fixes some fallout from my mac80211 RX flags changes
 * Emmanuel fixes an issue with adhering to the spec, and
   an oversight in the SMPS management code
 * Jason's patch makes mac80211 use constant-time memory
   comparisons for message authentication, to avoid having
   potentially observable timing differences
 * my fix makes mac80211 set the basic rates bitmap before
   the channel so the next update to the driver has more
   consistent data - this required another rework patch to
   remove some useless 5/10 MHz code that can never be hit
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 13:34:13 -04:00
Tayar, Tomer
ace17c3692 qed: fix dump of context data
Currently when dumping a context data only word number '1' is read for the
entire context.

Fixes: c965db4446 ("qed: Add support for debug data collection")

Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 13:32:58 -04:00
Bjørn Mork
60cfe1eacc qmi_wwan: new Telewell and Sierra device IDs
A new Sierra Wireless EM7305 device ID used in a Toshiba laptop,
and two Longcheer device IDs entries used by Telewell TW-3G HSPA+
branded modems.

Reported-by: Petr Kloc <petr_kloc@yahoo.com>
Reported-by: Teemu Likonen <tlikonen@iki.fi>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 13:20:42 -04:00
Florian Fainelli
665fff2923 net: phy: Fix MDIO_THUNDER dependencies
After commit 90eff9096c ("net: phy: Allow splitting MDIO
bus/device support from PHYs") we could create a configuration where
MDIO_DEVICE=y and PHYLIB=m which leads to the following undefined
references:

 drivers/built-in.o: In function `thunder_mdiobus_pci_remove':
>> mdio-thunder.c:(.text+0x2a212f): undefined reference to
>> `mdiobus_unregister'
>> mdio-thunder.c:(.text+0x2a2138): undefined reference to
>> `mdiobus_free'
   drivers/built-in.o: In function `thunder_mdiobus_pci_probe':
   mdio-thunder.c:(.text+0x2a22e7): undefined reference to
`devm_mdiobus_alloc_size'
   mdio-thunder.c:(.text+0x2a236f): undefined reference to
`of_mdiobus_register'

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Fixes: 90eff9096c ("net: phy: Allow splitting MDIO bus/device support from PHYs")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 12:58:19 -04:00
Joe Perches
4a6a97e265 netconsole: Remove duplicate "netconsole: " logging prefix
It's already added by pr_fmt so remove the explicit use.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 12:57:40 -04:00
WANG Cong
c38b7d327a igmp: acquire pmc lock for ip_mc_clear_src()
Andrey reported a use-after-free in add_grec():

        for (psf = *psf_list; psf; psf = psf_next) {
		...
                psf_next = psf->sf_next;

where the struct ip_sf_list's were already freed by:

 kfree+0xe8/0x2b0 mm/slub.c:3882
 ip_mc_clear_src+0x69/0x1c0 net/ipv4/igmp.c:2078
 ip_mc_dec_group+0x19a/0x470 net/ipv4/igmp.c:1618
 ip_mc_drop_socket+0x145/0x230 net/ipv4/igmp.c:2609
 inet_release+0x4e/0x1c0 net/ipv4/af_inet.c:411
 sock_release+0x8d/0x1e0 net/socket.c:597
 sock_close+0x16/0x20 net/socket.c:1072

This happens because we don't hold pmc->lock in ip_mc_clear_src()
and a parallel mr_ifc_timer timer could jump in and access them.

The RCU lock is there but it is merely for pmc itself, this
spinlock could actually ensure we don't access them in parallel.

Thanks to Eric and Long for discussion on this bug.

Reported-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 12:51:37 -04:00
Oliver Neukum
eb3c28c155 r8152: give the device version
Getting the device version out of the driver really aids debugging.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 12:50:15 -04:00
Ashwanth Goli
97d8b6e3b8 net: rps: fix uninitialized symbol warning
This patch fixes uninitialized symbol warning that
got introduced by the following commit
773fc8f6e8 ("net: rps: send out pending IPI's on CPU hotplug")

Signed-off-by: Ashwanth Goli <ashwanth@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:31:22 -04:00
Jiri Kosina
0ca4cd7bcc HID: let generic driver yield control iff specific driver has been enabled
There are many situations where generic HID driver provides some basic level
of support for certain device, but later this support (usually by implementing
vendor-specific extensions of HID protocol) is extended and the support moved
over to a separate (usually per-vendor) specific driver.

This might bring a rather unpleasant suprise for users, as all of a sudden
there is a new config option they have to enable in order to get any support
for their device whatsoever, although previous kernel versions provided basic
support through the generic driver. Which is rightfully seen as a regression.

Fix this by including the entry for a particular device in
hid_have_special_driver[] iff the specific config option has been specified,
and let generic driver handle the device otherwise.
Also make the behavior of hid_scan_report() (where the same decision is being
taken on a per-report level) consistent.

While at it, reshuffle the hid_have_special_driver[] a bit to restore the
alphabetical ordering (first order by config option, and within those
sections order by VID).

This is considered a short-term solution, before generic way of giving
precedence to special drivers and falling back to generic driver is
figured out.

While at it, fixup a missing entry for GFRM driver; thanks to Hans de Geode for
spotting this (and for discovering a few issues in the conversion).

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-06-13 16:52:50 +02:00
Emmanuel Grumbach
b3dd827965 mac80211: don't send SMPS action frame in AP mode when not needed
mac80211 allows to modify the SMPS state of an AP both,
when it is started, and after it has been started. Such a
change will trigger an action frame to all the peers that
are currently connected, and will be remembered so that
new peers will get notified as soon as they connect (since
the SMPS setting in the beacon may not be the right one).

This means that we need to remember the SMPS state
currently requested as well as the SMPS state that was
configured initially (and advertised in the beacon).
The former is bss->req_smps and the latter is
sdata->smps_mode.

Initially, the AP interface could only be started with
SMPS_OFF, which means that sdata->smps_mode was SMPS_OFF
always. Later, a nl80211 API was added to be able to start
an AP with a different AP mode. That code forgot to update
bss->req_smps and because of that, if the AP interface was
started with SMPS_DYNAMIC, we had:
   sdata->smps_mode = SMPS_DYNAMIC
   bss->req_smps = SMPS_OFF

That configuration made mac80211 think it needs to fire off
an action frame to any new station connecting to the AP in
order to let it know that the actual SMPS configuration is
SMPS_OFF.

Fix that by properly setting bss->req_smps in
ieee80211_start_ap.

Fixes: f699317487 ("mac80211: set smps_mode according to ap params")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-06-13 10:24:35 +02:00
Jason A. Donenfeld
98c67d187d mac80211/wpa: use constant time memory comparison for MACs
Otherwise, we enable all sorts of forgeries via timing attack.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-wireless@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-06-13 10:24:34 +02:00
Johannes Berg
c87905bec5 mac80211: set bss_info data before configuring the channel
When mac80211 changes the channel, it also calls into the driver's
bss_info_changed() callback, e.g. with BSS_CHANGED_IDLE. The driver
may, like iwlwifi does, access more data from bss_info in that case
and iwlwifi accesses the basic_rates bitmap, but if changing from a
band with more (basic) rates to one with fewer, an out-of-bounds
access of the rate array may result.

While we can't avoid having invalid data at some point in time, we
can avoid having it while we call the driver - so set up all the
data before configuring the channel, and then apply it afterwards.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=195677

Reported-by: Johannes Hirte <johannes.hirte@datenkhaos.de>
Tested-by: Johannes Hirte <johannes.hirte@datenkhaos.de>
Debugged-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-06-13 10:24:33 +02:00
Johannes Berg
44f6d42cbd mac80211: remove 5/10 MHz rate code from station MLME
There's no need for the station MLME code to handle bitrates for 5
or 10 MHz channels when it can't ever create such a configuration.
Remove the unnecessary code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-06-13 10:24:32 +02:00
Avraham Stern
204a7dbcb2 mac80211: Fix incorrect condition when checking rx timestamp
If the driver reports the rx timestamp at PLCP start, mac80211 can
only handle legacy encoding, but the code checks that the encoding
is not legacy. Fix this.

Fixes: da6a4352e7 ("mac80211: separate encoding/bandwidth from flags")
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-06-13 10:24:32 +02:00
Emmanuel Grumbach
769dc04db3 mac80211: don't look at the PM bit of BAR frames
When a peer sends a BAR frame with PM bit clear, we should
not modify its PM state as madated by the spec in
802.11-20012 10.2.1.2.

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-06-13 10:24:31 +02:00
Zhenyu Wang
c380f68124 drm/i915: Fix GVT-g PVINFO version compatibility check
Current it's strictly checked if PVINFO version matches 1.0
for GVT-g i915 guest which doesn't help for compatibility at
all and forces GVT-g host can't extend PVINFO easily with version
bump for real compatibility check.

This fixes that to check minimal required PVINFO version instead.

v2:
- drop unneeded version macro
- use only major version for sanity check

v3:
- fix up PVInfo value with kernel type
- one indent fix

Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chuanxiao Dong <chuanxiao.dong@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: stable@vger.kernel.org # v4.10+
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170609074805.5101-1-zhenyuw@linux.intel.com
(cherry picked from commit 0c8792d00d)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2017-06-13 11:19:22 +03:00
Ville Syrjälä
1c2d6bbf04 drm/i915: Fix SKL+ watermarks for 90/270 rotation
skl_check_plane_surface() already rotates the clipped plane source
coordinates to match the scanout direction because that's the way
the GTT mapping is set up. Thus we no longer need to rotate the
coordinates in the watermark code.

For cursors we use the non-clipped coordinates which are not rotated
appropriately, but that doesn't actually matter since cursors don't
even support 90/270 degree rotation.

v2: Resolve conflicts from SKL+ wm rework

Cc: stable@vger.kernel.org
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: b63a16f6cd ("drm/i915: Compute display surface offset in the plane check hook for SKL+")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170331180056.14086-3-ville.syrjala@linux.intel.com
Tested-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
(cherry picked from commit fce5adf568)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170608144002.1605-2-ville.syrjala@linux.intel.com
2017-06-13 10:53:43 +03:00
Ville Syrjälä
9a775e0308 drm/i915: Fix scaling check for 90/270 degree plane rotation
Starting from commit b63a16f6cd ("drm/i915: Compute display surface
offset in the plane check hook for SKL+") we've already rotated the src
coordinates by 270 degrees by the time we check if a scaler is needed
or not, so we must not account for the rotation a second time.
Previously we did these steps in the opposite order and hence the
scaler check had to deal with rotation itself. The double rotation
handling causes us to enable a scaler pretty much every time 90/270
degree plane rotation is requested, leading to fuzzier fonts and whatnot.

v2: s/unsigned/unsigned int/ to appease checkpatch
v3: s/DRM_ROTATE_0/DRM_MODE_ROTATE_0/

Cc: stable@vger.kernel.org
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reported-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Tested-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: b63a16f6cd ("drm/i915: Compute display surface offset in the plane check hook for SKL+")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170331180056.14086-2-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
(cherry picked from commit d96a7d2adb)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170608144002.1605-1-ville.syrjala@linux.intel.com
2017-06-13 10:53:38 +03:00
Paul Moore
023f108dcc selinux: fix double free in selinux_parse_opts_str()
This patch is based on a discussion generated by an earlier patch
from Tetsuo Handa:

* https://marc.info/?t=149035659300001&r=1&w=2

The double free problem involves the mnt_opts field of the
security_mnt_opts struct, selinux_parse_opts_str() frees the memory
on error, but doesn't set the field to NULL so if the caller later
attempts to call security_free_mnt_opts() we trigger the problem.

In order to play it safe we change selinux_parse_opts_str() to call
security_free_mnt_opts() on error instead of free'ing the memory
directly.  This should ensure that everything is handled correctly,
regardless of what the caller may do.

Fixes: e000752989 ("LSM/SELinux: Interfaces to allow FS to control mount options")
Cc: stable@vger.kernel.org
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2017-06-13 17:34:22 +10:00
Vlastimil Babka
d9ee35acfa x86/mm: Disable 1GB direct mappings when disabling 2MB mappings
The kmemleak and debug_pagealloc features both disable using huge pages for
direct mappings so they can do cpa() on page level granularity in any context.

However they only do that for 2MB pages, which means 1GB pages can still be
used if the CPU supports it, unless disabled by a boot param, which is
non-obvious. Disable also 1GB pages when disabling 2MB pages.

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vegard Nossum <vegardno@ifi.uio.no>
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/2be70c78-6130-855d-3dfa-d87bd1dd4fda@suse.cz
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-13 08:33:00 +02:00
Linus Torvalds
63f700aab4 Xtensa fixes for v4.12-rc6
- don't use linux IRQ #0 in legacy irq domains: fixes timer interrupt
   assignment when it's hardware IRQ # is 0 and the kernel is built w/o
   device tree support;
 - reduce reservation size for double exception vector literals from 48
   to 20 bytes: fixes build on cores with small user exception vector;
 - cleanups: use kmalloc_array instead of kmalloc in simdisk_init and
   seq_puts instead of seq_printf in c_show.
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Merge tag 'xtensa-20170612' of git://github.com/jcmvbkbc/linux-xtensa

Pull Xtensa fixes from Max Filippov:

 - don't use linux IRQ #0 in legacy irq domains: fixes timer interrupt
   assignment when it's hardware IRQ # is 0 and the kernel is built w/o
   device tree support

 - reduce reservation size for double exception vector literals from 48
   to 20 bytes: fixes build on cores with small user exception vector

 - cleanups: use kmalloc_array instead of kmalloc in simdisk_init and
   seq_puts instead of seq_printf in c_show.

* tag 'xtensa-20170612' of git://github.com/jcmvbkbc/linux-xtensa:
  xtensa: don't use linux IRQ #0
  xtensa: reduce double exception literal reservation
  xtensa: ISS: Use kmalloc_array() in simdisk_init()
  xtensa: Use seq_puts() in c_show()
2017-06-13 15:09:10 +09:00
Linus Torvalds
2ab99b001d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:

 - A fix for KVM to avoid kernel oopses in case of host protection
   faults due to runtime instrumentation

 - A fix for the AP bus to avoid dead devices after unbind / bind

 - A fix for a compile warning merged from the vfio_ccw tree

 - Updated default configurations

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: update defconfig
  s390/zcrypt: Fix blocking queue device after unbind/bind.
  s390/vfio_ccw: make some symbols static
  s390/kvm: do not rely on the ILC on kvm host protection fauls
2017-06-13 15:07:11 +09:00