a3f781a9d6
11041 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Hangbin Liu
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9c9211a3fc |
net_tstamp: add new flag HWTSTAMP_FLAG_BONDED_PHC_INDEX
Since commit
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Simon Ser
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43d5ac7d07 |
drm: document DRM_IOCTL_MODE_GETFB2
There are a few details specific to the GETFB2 IOCTL. It's not immediately clear how user-space should check for the number of planes. Suggest using the handles field or the pitches field. The modifier array is filled with zeroes, ie. DRM_FORMAT_MOD_LINEAR. So explicitly tell user-space to not look at it unless the flag is set. Changes in v2 (Daniel): - Mention that handles should be used to compute the number of planes, and only refer to pitches as a fallback. - Reword bit about undefined modifier. Signed-off-by: Simon Ser <contact@emersion.fr> Acked-by: Daniel Vetter <daniel@ffwll.ch> Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Acked-by: Daniel Stone <daniels@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211123112400.22245-1-contact@emersion.fr |
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Jeffle Xu
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98046f7486 |
fuse: support per inode DAX in fuse protocol
Expand the fuse protocol to support per inode DAX. FUSE_HAS_INODE_DAX flag is added indicating if fuse server/client supporting per inode DAX. It can be conveyed in both FUSE_INIT request and reply. FUSE_ATTR_DAX flag is added indicating if DAX shall be enabled for corresponding file. It is conveyed in FUSE_LOOKUP reply. Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com> Reviewed-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> |
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Daniel Vetter
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99b03ca651 |
Linux 5.16-rc5
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Merge v5.16-rc5 into drm-next
Thomas Zimmermann requested a fixes backmerge, specifically also for
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Jiri Olsa
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f92c1e1836 |
bpf: Add get_func_[arg|ret|arg_cnt] helpers
Adding following helpers for tracing programs: Get n-th argument of the traced function: long bpf_get_func_arg(void *ctx, u32 n, u64 *value) Get return value of the traced function: long bpf_get_func_ret(void *ctx, u64 *value) Get arguments count of the traced function: long bpf_get_func_arg_cnt(void *ctx) The trampoline now stores number of arguments on ctx-8 address, so it's easy to verify argument index and find return value argument's position. Moving function ip address on the trampoline stack behind the number of functions arguments, so it's now stored on ctx-16 address if it's needed. All helpers above are inlined by verifier. Also bit unrelated small change - using newly added function bpf_prog_has_trampoline in check_get_func_ip. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20211208193245.172141-5-jolsa@kernel.org |
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Greg Kroah-Hartman
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af40d16042 |
Merge v5.15-rc5 into char-misc-next
We need the fixes in here as well, and also resolve some merge conflicts in: drivers/misc/eeprom/at25.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Takashi Sakamoto
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55b71f6c29 |
ALSA: uapi: use C90 comment style instead of C99 style
UAPI headers are built with compiler option for C90, thus double-slashes
comment introduced in C99 is not preferable.
Fixes:
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Takashi Sakamoto
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fb6723daf8 |
ALSA: pcm: comment about relation between msbits hw parameter and [S|U]32 formats
Regarding to handling [U|S][32|24] PCM formats, many userspace application developers and driver developers have confusion, since they require them to understand justification or padding. It easily loses consistency and soundness to operate with many type of devices. In this commit, I attempt to solve the situation by adding comment about relation between [S|U]32 formats and 'msbits' hardware parameter. The formats are used for 'left-justified' sample format, and the available bit count in most significant bit is delivered to userspace in msbits hardware parameter (struct snd_pcm_hw_params.msbits), which is decided by msbits constraint added by pcm drivers (snd_pcm_hw_constraint_msbits()). In driver side, the msbits constraint includes two elements; the physical width of format and the available width of the format in most significant bit. The former is used to match SAMPLE_BITS of format. (For my convenience, I ignore wildcard in the usage of the constraint.) As a result of interaction between ALSA pcm core and ALSA pcm application, when the format in which SAMPLE_BITS equals to physical width of the msbits constaint, the msbits parameter is set by referring to the available width of the constraint. When the msbits parameter is not changed in the above process, ALSA pcm core set it alternatively with SAMPLE_BIT of chosen format. In userspace application side, the msbits is only available after calling ioctl(2) with SNDRV_PCM_IOCTL_HW_PARAMS request. Even if the hardware parameter structure includes somewhat value of SAMPLE_BITS interval parameter as width of format, all of the width is not always available since msbits can be less than the width. I note that [S|U]24 formats are used for 'right-justified' 24 bit sample formats within 32 bit frame. The first byte in most significant bit should be invalidated. Although the msbits exposed to userspace should be zero as invalid value, actually it is 32 from physical width of format. [ corrected typos -- tiwai ] Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20210529033353.21641-1-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Hou Tao
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c5fb199374 |
bpf: Add bpf_strncmp helper
The helper compares two strings: one string is a null-terminated read-only string, and another string has const max storage size but doesn't need to be null-terminated. It can be used to compare file name in tracing or LSM program. Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20211210141652.877186-2-houtao1@huawei.com |
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Linus Torvalds
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df442a4ec7 |
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton: "21 patches. Subsystems affected by this patch series: MAINTAINERS, mailmap, and mm (mlock, pagecache, damon, slub, memcg, hugetlb, and pagecache)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (21 commits) mm: bdi: initialize bdi_min_ratio when bdi is unregistered hugetlbfs: fix issue of preallocation of gigantic pages can't work mm/memcg: relocate mod_objcg_mlstate(), get_obj_stock() and put_obj_stock() mm/slub: fix endianness bug for alloc/free_traces attributes selftests/damon: split test cases selftests/damon: test debugfs file reads/writes with huge count selftests/damon: test wrong DAMOS condition ranges input selftests/damon: test DAMON enabling with empty target_ids case selftests/damon: skip test if DAMON is running mm/damon/vaddr-test: remove unnecessary variables mm/damon/vaddr-test: split a test function having >1024 bytes frame size mm/damon/vaddr: remove an unnecessary warning message mm/damon/core: remove unnecessary error messages mm/damon/dbgfs: remove an unnecessary error message mm/damon/core: use better timer mechanisms selection threshold mm/damon/core: fix fake load reports due to uninterruptible sleeps timers: implement usleep_idle_range() filemap: remove PageHWPoison check from next_uptodate_page() mailmap: update email address for Guo Ren MAINTAINERS: update kdump maintainers ... |
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Drew DeVault
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9dcc38e281 |
Increase default MLOCK_LIMIT to 8 MiB
This limit has not been updated since 2008, when it was increased to 64 KiB at the request of GnuPG. Until recently, the main use-cases for this feature were (1) preventing sensitive memory from being swapped, as in GnuPG's use-case; and (2) real-time use-cases. In the first case, little memory is called for, and in the second case, the user is generally in a position to increase it if they need more. The introduction of IOURING_REGISTER_BUFFERS adds a third use-case: preparing fixed buffers for high-performance I/O. This use-case will take as much of this memory as it can get, but is still limited to 64 KiB by default, which is very little. This increases the limit to 8 MB, which was chosen fairly arbitrarily as a more generous, but still conservative, default value. It is also possible to raise this limit in userspace. This is easily done, for example, in the use-case of a network daemon: systemd, for instance, provides for this via LimitMEMLOCK in the service file; OpenRC via the rc_ulimit variables. However, there is no established userspace facility for configuring this outside of daemons: end-user applications do not presently have access to a convenient means of raising their limits. The buck, as it were, stops with the kernel. It's much easier to address it here than it is to bring it to hundreds of distributions, and it can only realistically be relied upon to be high-enough by end-user software if it is more-or-less ubiquitous. Most distros don't change this particular rlimit from the kernel-supplied default value, so a change here will easily provide that ubiquity. Link: https://lkml.kernel.org/r/20211028080813.15966-1-sir@cmpwn.com Signed-off-by: Drew DeVault <sir@cmpwn.com> Acked-by: Jens Axboe <axboe@kernel.dk> Acked-by: Cyril Hrubis <chrubis@suse.cz> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Pavel Begunkov <asml.silence@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Andrew Dona-Couch <andrew@donacou.ch> Cc: Ammar Faizi <ammarfaizi2@gnuweeb.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jakub Kicinski
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be3158290d |
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Andrii Nakryiko says:
====================
bpf-next 2021-12-10 v2
We've added 115 non-merge commits during the last 26 day(s) which contain
a total of 182 files changed, 5747 insertions(+), 2564 deletions(-).
The main changes are:
1) Various samples fixes, from Alexander Lobakin.
2) BPF CO-RE support in kernel and light skeleton, from Alexei Starovoitov.
3) A batch of new unified APIs for libbpf, logging improvements, version
querying, etc. Also a batch of old deprecations for old APIs and various
bug fixes, in preparation for libbpf 1.0, from Andrii Nakryiko.
4) BPF documentation reorganization and improvements, from Christoph Hellwig
and Dave Tucker.
5) Support for declarative initialization of BPF_MAP_TYPE_PROG_ARRAY in
libbpf, from Hengqi Chen.
6) Verifier log fixes, from Hou Tao.
7) Runtime-bounded loops support with bpf_loop() helper, from Joanne Koong.
8) Extend branch record capturing to all platforms that support it,
from Kajol Jain.
9) Light skeleton codegen improvements, from Kumar Kartikeya Dwivedi.
10) bpftool doc-generating script improvements, from Quentin Monnet.
11) Two libbpf v0.6 bug fixes, from Shuyi Cheng and Vincent Minet.
12) Deprecation warning fix for perf/bpf_counter, from Song Liu.
13) MAX_TAIL_CALL_CNT unification and MIPS build fix for libbpf,
from Tiezhu Yang.
14) BTF_KING_TYPE_TAG follow-up fixes, from Yonghong Song.
15) Selftests fixes and improvements, from Ilya Leoshkevich, Jean-Philippe
Brucker, Jiri Olsa, Maxim Mikityanskiy, Tirthendu Sarkar, Yucong Sun,
and others.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (115 commits)
libbpf: Add "bool skipped" to struct bpf_map
libbpf: Fix typo in btf__dedup@LIBBPF_0.0.2 definition
bpftool: Switch bpf_object__load_xattr() to bpf_object__load()
selftests/bpf: Remove the only use of deprecated bpf_object__load_xattr()
selftests/bpf: Add test for libbpf's custom log_buf behavior
selftests/bpf: Replace all uses of bpf_load_btf() with bpf_btf_load()
libbpf: Deprecate bpf_object__load_xattr()
libbpf: Add per-program log buffer setter and getter
libbpf: Preserve kernel error code and remove kprobe prog type guessing
libbpf: Improve logging around BPF program loading
libbpf: Allow passing user log setting through bpf_object_open_opts
libbpf: Allow passing preallocated log_buf when loading BTF into kernel
libbpf: Add OPTS-based bpf_btf_load() API
libbpf: Fix bpf_prog_load() log_buf logic for log_level 0
samples/bpf: Remove unneeded variable
bpf: Remove redundant assignment to pointer t
selftests/bpf: Fix a compilation warning
perf/bpf_counter: Use bpf_map_create instead of bpf_create_map
samples: bpf: Fix 'unknown warning group' build warning on Clang
samples: bpf: Fix xdp_sample_user.o linking with Clang
...
====================
Link: https://lore.kernel.org/r/20211210234746.2100561-1-andrii@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Jakub Kicinski
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3150a73366 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Eric Biggers
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50252e4b5e |
aio: fix use-after-free due to missing POLLFREE handling
signalfd_poll() and binder_poll() are special in that they use a
waitqueue whose lifetime is the current task, rather than the struct
file as is normally the case. This is okay for blocking polls, since a
blocking poll occurs within one task; however, non-blocking polls
require another solution. This solution is for the queue to be cleared
before it is freed, by sending a POLLFREE notification to all waiters.
Unfortunately, only eventpoll handles POLLFREE. A second type of
non-blocking poll, aio poll, was added in kernel v4.18, and it doesn't
handle POLLFREE. This allows a use-after-free to occur if a signalfd or
binder fd is polled with aio poll, and the waitqueue gets freed.
Fix this by making aio poll handle POLLFREE.
A patch by Ramji Jiyani <ramjiyani@google.com>
(https://lore.kernel.org/r/20211027011834.2497484-1-ramjiyani@google.com)
tried to do this by making aio_poll_wake() always complete the request
inline if POLLFREE is seen. However, that solution had two bugs.
First, it introduced a deadlock, as it unconditionally locked the aio
context while holding the waitqueue lock, which inverts the normal
locking order. Second, it didn't consider that POLLFREE notifications
are missed while the request has been temporarily de-queued.
The second problem was solved by my previous patch. This patch then
properly fixes the use-after-free by handling POLLFREE in a
deadlock-free way. It does this by taking advantage of the fact that
freeing of the waitqueue is RCU-delayed, similar to what eventpoll does.
Fixes:
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Zack Rusin
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abaad3d95b |
drm/vmwgfx: Allow checking for gl43 contexts
To make sure we're running on top of hardware that can support GL4.3 we need to add a way of querying for those capabilities. DRM_VMW_PARAM_GL43 allows userspace to check for presence of GL4.3 capable contexts. Signed-off-by: Zack Rusin <zackr@vmware.com> Reviewed-by: Charmaine Lee <charmainel@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211206172620.3139754-10-zack@kde.org |
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Mauro Carvalho Chehab
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4383cfa18c |
Linux 5.16-rc4
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmGtOFYeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG1hUH/1bmlOYsscJ7biqd VECr5HhTg6iRvwWUiOpU27fLuBeAM1ZdF0oLuCtzvbK2h8lfTclcHfueihK0GIvX ci8BvwpOYfUdDUWHglgvGXqICqYch3PiBVMFiRRRkzcpZdyCFCirAynLdOeusdTU 72Fi2RBaIM+U/5UVKcTx0J9WJsvFcG97lnNX5nT3dUmuoSW4WmX+h4vIe8VYFVmd 8q1gD17hPL+ThTKcZApn7IsArU1LNEGRg0tYItgMJo8AMTvsZjwR6yQgXeyuQ0Xk xp6pZwzABtnL9dfNJ95q1GhsJBX5T5XvAVjt2uR1ADbgh6TDApC1VBKICm1Nva7g uT6S0yE= =JNL8 -----END PGP SIGNATURE----- Merge tag 'v5.16-rc4' into media_tree Linux 5.16-rc4 * tag 'v5.16-rc4': (984 commits) Linux 5.16-rc4 KVM: SVM: Do not terminate SEV-ES guests on GHCB validation failure KVM: SEV: Fall back to vmalloc for SEV-ES scratch area if necessary KVM: SEV: Return appropriate error codes if SEV-ES scratch setup fails parisc: Mark cr16 CPU clocksource unstable on all SMP machines parisc: Fix "make install" on newer debian releases sched/uclamp: Fix rq->uclamp_max not set on first enqueue preempt/dynamic: Fix setup_preempt_mode() return value cifs: avoid use of dstaddr as key for fscache client cookie cifs: add server conn_id to fscache client cookie cifs: wait for tcon resource_id before getting fscache super cifs: fix missed refcounting of ipc tcon x86/xen: Add xenpv_restore_regs_and_return_to_usermode() x86/entry: Use the correct fence macro after swapgs in kernel CR3 fget: check that the fd still exists after getting a ref to it x86/entry: Add a fence for kernel entry SWAPGS in paranoid_entry() x86/sev: Fix SEV-ES INS/OUTS instructions for word, dword, and qword powercap: DTPM: Drop unused local variable from init_dtpm() io-wq: don't retry task_work creation failure on fatal conditions serial: 8250_bcm7271: UART errors after resuming from S2 ... |
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Jean-Philippe Brucker
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063ebb19d9 |
iommu/virtio: Add definitions for VIRTIO_IOMMU_F_BYPASS_CONFIG
Add definitions for the VIRTIO_IOMMU_F_BYPASS_CONFIG, which supersedes VIRTIO_IOMMU_F_BYPASS. Reviewed-by: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Reviewed-by: Eric Auger <eric.auger@redhat.com> Link: https://lore.kernel.org/r/20211201173323.1045819-2-jean-philippe@linaro.org Signed-off-by: Joerg Roedel <jroedel@suse.de> |
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Linus Torvalds
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5f58da2bef |
drm-fixes-2021-12-03:
drm fixes for 5.16-rc4 dma-buf: - memory leak fix msm: - kasan found memory overwrite - mmap flags - fencing error bug - ioctl NULL ptr - uninit var - devfreqless devices fix - dsi lanes fix - dp: avoid unpowered aux xfers amdgpu: - IP discovery based enumeration fixes - vkms fixes - DSC fixes for DP MST - Audio fix for hotplug with tiled displays - Misc display fixes - DP tunneling fix - DP fix - Aldebaran fix amdkfd: - Locking fix - Static checker fix - Fix double free i915: - backlight regression - Intel HDR backlight detection fix - revert TGL workaround that caused hangs virtio-gpu: - switch back to drm_poll vc4: - memory leak - error check fix - HVS modesetting fixes -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmGpOTQACgkQDHTzWXnE hr6IcQ/9ER8UJPyOFEbbBkTOxTShkv2O4eMoP4nuReepAnoTTbNbrs+IvSesUgwb xbD22mytTmsxoPGDgK9X2W1JvyoHmsNjnNcy0eBF/34MU2AeRDJg8KqtwY3oIOaY do0q2VptW2Zujy5lKJJV6lukjO6W4JhgLWq3KlS/P7wyVbe5nRcBbOo2sFJ1WS2l AKtkJqzquAoDzhChN5TnNTey06WsXGION8yDD/cyxBBzvL0C5vUw8q+AKNvM5sm6 spHxj1Kz9wu2pMeZC/6wxzJnf/Go2im1Bal7wcrBaSZcFXVyH5Llp24TWlqj5PQL oEDhlUym5AwEMvlldAE6jwDPLt71tFnSpLQwKcrgPQbRMeXTrnP2Y7mJPYfWZiiY UHwlYXURJtq6BAEn00W+SZ1TeTjkODWl5/m+Ci4+u4h//Mbk0fdU7w1JZPzEHaOy dqmmxXhqgUbCgi6lrCTcLrZcZFCHq9GdZkyK76QrYAQTB5Tz/txl2d3TWFZ2N+fW uZbwNvjDhi1wubmJcwSUIItbjZTdIsIQ845EbevoTw9FIanLfA+XQhafYYGwUyMb i7ZO6pqYiH2/OZDguQJDmvGLdd0VwS9QyMBj/meFA9FZFujV0Vrzoz6Vj6a13Gcv q+/YL1FzPhMKs3g1P1quFHqhyvp+aZV/+2NalGWdBAGfcN1TIr8= =xcZd -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2021-12-03-1' of git://anongit.freedesktop.org/drm/drm Pull drm fixes from Dave Airlie: "Bit of an uptick in patch count this week, though it's all relatively small overall. I suspect msm has been queuing up a few fixes to skew it here. Otherwise amdgpu has a scattered bunch of small fixes, and then some vc4, i915. virtio-gpu changes an rc1 introduced uAPI mistake, and makes it operate more like other drivers. This should be fine as no userspace relies on the behaviour yet. Summary: dma-buf: - memory leak fix msm: - kasan found memory overwrite - mmap flags - fencing error bug - ioctl NULL ptr - uninit var - devfreqless devices fix - dsi lanes fix - dp: avoid unpowered aux xfers amdgpu: - IP discovery based enumeration fixes - vkms fixes - DSC fixes for DP MST - Audio fix for hotplug with tiled displays - Misc display fixes - DP tunneling fix - DP fix - Aldebaran fix amdkfd: - Locking fix - Static checker fix - Fix double free i915: - backlight regression - Intel HDR backlight detection fix - revert TGL workaround that caused hangs virtio-gpu: - switch back to drm_poll vc4: - memory leak - error check fix - HVS modesetting fixes" * tag 'drm-fixes-2021-12-03-1' of git://anongit.freedesktop.org/drm/drm: (41 commits) Revert "drm/i915: Implement Wa_1508744258" drm/amdkfd: process_info lock not needed for svm drm/amdgpu: adjust the kfd reset sequence in reset sriov function drm/amd/display: add connector type check for CRC source set drm/amdkfd: fix double free mem structure drm/amdkfd: set "r = 0" explicitly before goto drm/amd/display: Add work around for tunneled MST. drm/amd/display: Fix for the no Audio bug with Tiled Displays drm/amd/display: Clear DPCD lane settings after repeater training drm/amd/display: Allow DSC on supported MST branch devices drm/amdgpu: Don't halt RLC on GFX suspend drm/amdgpu: fix the missed handling for SDMA2 and SDMA3 drm/amdgpu: check atomic flag to differeniate with legacy path drm/amdgpu: cancel the correct hrtimer on exit drm/amdgpu/sriov/vcn: add new vcn ip revision check case for SIENNA_CICHLID drm/i915/dp: Perform 30ms delay after source OUI write dma-buf: system_heap: Use 'for_each_sgtable_sg' in pages free flow drm/i915: Add support for panels with VESA backlights with PWM enable/disable drm/vc4: kms: Fix previous HVS commit wait drm/vc4: kms: Don't duplicate pending commit ... |
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Jakub Kicinski
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fc993be36f |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Alexei Starovoitov
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fbd94c7afc |
bpf: Pass a set of bpf_core_relo-s to prog_load command.
struct bpf_core_relo is generated by llvm and processed by libbpf. It's a de-facto uapi. With CO-RE in the kernel the struct bpf_core_relo becomes uapi de-jure. Add an ability to pass a set of 'struct bpf_core_relo' to prog_load command and let the kernel perform CO-RE relocations. Note the struct bpf_line_info and struct bpf_func_info have the same layout when passed from LLVM to libbpf and from libbpf to the kernel except "insn_off" fields means "byte offset" when LLVM generates it. Then libbpf converts it to "insn index" to pass to the kernel. The struct bpf_core_relo's "insn_off" field is always "byte offset". Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211201181040.23337-6-alexei.starovoitov@gmail.com |
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Alexei Starovoitov
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46334a0cd2 |
bpf: Define enum bpf_core_relo_kind as uapi.
enum bpf_core_relo_kind is generated by llvm and processed by libbpf. It's a de-facto uapi. With CO-RE in the kernel the bpf_core_relo_kind values become uapi de-jure. Also rename them with BPF_CORE_ prefix to distinguish from conflicting names in bpf_core_read.h. The enums bpf_field_info_kind, bpf_type_id_kind, bpf_type_info_kind, bpf_enum_value_kind are passing different values from bpf program into llvm. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211201181040.23337-5-alexei.starovoitov@gmail.com |
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Xiayu Zhang
|
72f6a45202 |
Fix Comment of ETH_P_802_3_MIN
The description of ETH_P_802_3_MIN is misleading. The value of EthernetType in Ethernet II frame is more than 0x0600, the value of Length in 802.3 frame is less than 0x0600. Signed-off-by: Xiayu Zhang <Xiayu.Zhang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Eric Dumazet
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ce8299b6f7 |
Revert "net: snmp: add statistics for tcp small queue check"
This reverts commit
|
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Joanne Koong
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e6f2dd0f80 |
bpf: Add bpf_loop helper
This patch adds the kernel-side and API changes for a new helper function, bpf_loop: long bpf_loop(u32 nr_loops, void *callback_fn, void *callback_ctx, u64 flags); where long (*callback_fn)(u32 index, void *ctx); bpf_loop invokes the "callback_fn" **nr_loops** times or until the callback_fn returns 1. The callback_fn can only return 0 or 1, and this is enforced by the verifier. The callback_fn index is zero-indexed. A few things to please note: ~ The "u64 flags" parameter is currently unused but is included in case a future use case for it arises. ~ In the kernel-side implementation of bpf_loop (kernel/bpf/bpf_iter.c), bpf_callback_t is used as the callback function cast. ~ A program can have nested bpf_loop calls but the program must still adhere to the verifier constraint of its stack depth (the stack depth cannot exceed MAX_BPF_STACK)) ~ Recursive callback_fns do not pass the verifier, due to the call stack for these being too deep. ~ The next patch will include the tests and benchmark Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211130030622.4131246-2-joannekoong@fb.com |
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Hangbin Liu
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5944b5abd8 |
Bonding: add arp_missed_max option
Currently, we use hard code number to verify if we are in the arp_interval timeslice. But some user may want to reduce/extend the verify timeslice. With the similar team option 'missed_max' the uers could change that number based on their own environment. Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Menglong Dong
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aeeecb8891 |
net: snmp: add statistics for tcp small queue check
Once tcp small queue check failed in tcp_small_queue_check(), the throughput of tcp will be limited, and it's hard to distinguish whether it is out of tcp congestion control. Add statistics of LINUX_MIB_TCPSMALLQUEUEFAILURE for this scene. Signed-off-by: Menglong Dong <imagedong@tencent.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Gurchetan Singh
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7e78781df4 |
drm/virtgpu api: define a dummy fence signaled event
The current virtgpu implementation of poll(..) drops events
when VIRTGPU_CONTEXT_PARAM_POLL_RINGS_MASK is enabled (otherwise
it's like a normal DRM driver).
This is because paravirtualized userspaces receives responses in a
buffer of type BLOB_MEM_GUEST, not by read(..).
To be in line with other DRM drivers and avoid specialized behavior,
it is possible to define a dummy event for virtgpu. Paravirtualized
userspace will now have to call read(..) on the DRM fd to receive the
dummy event.
Fixes:
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Ian Abbott
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df0e68c1e9 |
comedi: Move the main COMEDI headers
Move the main COMEDI driver headers out of "drivers/comedi/" into new directory "include/linux/comedi/". These are "comedidev.h", "comedilib.h", "comedi_pci.h", "comedi_pcmcia.h", and "comedi_usb.h". Additionally, move the user-space API header "comedi.h" into "include/uapi/linux/" and add "WITH Linux-syscall-note" to its SPDX-License-Identifier. Update the "COMEDI DRIVERS" section of the MAINTAINERS file to account for these changes. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20211117120604.117740-2-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Vivek Goyal
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3e2b6fdbdc |
fuse: send security context of inode on file
When a new inode is created, send its security context to server along with creation request (FUSE_CREAT, FUSE_MKNOD, FUSE_MKDIR and FUSE_SYMLINK). This gives server an opportunity to create new file and set security context (possibly atomically). In all the configurations it might not be possible to set context atomically. Like nfs and ceph, use security_dentry_init_security() to dermine security context of inode and send it with create, mkdir, mknod, and symlink requests. Following is the information sent to server. fuse_sectx_header, fuse_secctx, xattr_name, security_context - struct fuse_secctx_header This contains total number of security contexts being sent and total size of all the security contexts (including size of fuse_secctx_header). - struct fuse_secctx This contains size of security context which follows this structure. There is one fuse_secctx instance per security context. - xattr name string This string represents name of xattr which should be used while setting security context. - security context This is the actual security context whose size is specified in fuse_secctx struct. Also add the FUSE_SECURITY_CTX flag for the `flags` field of the fuse_init_out struct. When this flag is set the kernel will append the security context for a newly created inode to the request (create, mkdir, mknod, and symlink). The server is responsible for ensuring that the inode appears atomically (preferrably) with the requested security context. For example, If the server is using SELinux and backed by a "real" linux file system that supports extended attributes it can write the security context value to /proc/thread-self/attr/fscreate before making the syscall to create the inode. This patch is based on patch from Chirantan Ekbote <chirantan@chromium.org> Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> |
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Miklos Szeredi
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53db28933e |
fuse: extend init flags
FUSE_INIT flags are close to running out, so add another 32bits worth of space. Add FUSE_INIT_EXT flag to the old flags field in fuse_init_in. If this flag is set, then fuse_init_in is extended by 48bytes, in which a flags_hi field is allocated to contain the high 32bits of the flags. A flags_hi field is also added to fuse_init_out, allocated out of the remaining unused fields. Known userspace implementations of the fuse protocol have been checked to accept the extended FUSE_INIT request, but this might cause problems with other implementations. If that happens to be the case, the protocol negotiation will have to be extended with an extra initialization request roundtrip. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> |
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Pavel Begunkov
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04c76b41ca |
io_uring: add option to skip CQE posting
Emitting a CQE is expensive from the kernel perspective. Often, it's also not convenient for the userspace, spends some cycles on processing and just complicates the logic. A similar problems goes for linked requests, where we post an CQE for each request in the link. Introduce a new flags, IOSQE_CQE_SKIP_SUCCESS, trying to help with it. When set and a request completed successfully, it won't generate a CQE. When fails, it produces an CQE, but all following linked requests will be CQE-less, regardless whether they have IOSQE_CQE_SKIP_SUCCESS or not. The notion of "fail" is the same as for link failing-cancellation, where it's opcode dependent, and _usually_ result >= 0 is a success, but not always. Linked timeouts are a bit special. When the requests it's linked to was not attempted to be executed, e.g. failing linked requests, it follows the description above. Otherwise, whether a linked timeout will post a completion or not solely depends on IOSQE_CQE_SKIP_SUCCESS of that linked timeout request. Linked timeout never "fail" during execution, so for them it's unconditional. It's expected for users to not really care about the result of it but rely solely on the result of the master request. Another reason for such a treatment is that it's racy, and the timeout callback may be running awhile the master request posts its completion. use case 1: If one doesn't care about results of some requests, e.g. normal timeouts, just set IOSQE_CQE_SKIP_SUCCESS. Error result will still be posted and need to be handled. use case 2: Set IOSQE_CQE_SKIP_SUCCESS for all requests of a link but the last, and it'll post a completion only for the last one if everything goes right, otherwise there will be one only one CQE for the first failed request. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/0220fbe06f7cf99e6fc71b4297bb1cb6c0e89c2c.1636559119.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Pierre-Louis Bossart
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b456abe63f
|
ALSA: pcm: introduce INFO_NO_REWINDS flag
When the hardware can only deal with a monotonically increasing appl_ptr, this flag can be set. In case the application requests a rewind, be it with a snd_pcm_rewind() or with a direct change of a mmap'ed pointer followed by a SNDRV_PCM_IOCTL_SYNC_PTR, this patch checks if a rewind occurred and returns an error. Credits to Takashi Iwai for identifying the path with SYNC_PTR and suggesting the pointer checks. Suggested-by: Takashi Iwai <tiwai@suse.de> Reviewed-by: Takashi Iwai <tiwai@suse.de> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20211119230852.206310-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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Jeremy Kerr
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a0c2ccd9b5 |
mctp: Add MCTP-over-serial transport binding
This change adds a MCTP Serial transport binding, as defined by DMTF specificiation DSP0253 - "MCTP Serial Transport Binding". This is implemented as a new serial line discipline, and can be attached to arbitrary tty devices. From the Kconfig description: This driver provides an MCTP-over-serial interface, through a serial line-discipline, as defined by DMTF specification "DSP0253 - MCTP Serial Transport Binding". By attaching the ldisc to a serial device, we get a new net device to transport MCTP packets. This allows communication with external MCTP endpoints which use serial as their transport. It can also be used as an easy way to provide MCTP connectivity between virtual machines, by forwarding data between simple virtual serial devices. Say y here if you need to connect to MCTP endpoints over serial. To compile as a module, use m; the module will be called mctp-serial. Once the N_MCTP line discipline is set [using ioctl(TCIOSETD)], we get a new netdev suitable for MCTP communication. The 'mctp' utility[1] provides a simple wrapper for this ioctl, using 'link serial <device>': # mctp link serial /dev/ttyS0 & # mctp link dev lo index 1 address 0x00:00:00:00:00:00 net 1 mtu 65536 up dev mctpserial0 index 5 address 0x(no-addr) net 1 mtu 68 down [1]: https://github.com/CodeConstruct/mctp Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Hao Chen
|
0b70c256eb |
ethtool: add support to set/get rx buf len via ethtool
Add support to set rx buf len via ethtool -G parameter and get rx buf len via ethtool -g parameter. Signed-off-by: Hao Chen <chenhao288@hisilicon.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Hao Chen
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448f413a8b |
ethtool: add support to set/get tx copybreak buf size via ethtool
Add support for ethtool to set/get tx copybreak buf size. Signed-off-by: Hao Chen <chenhao288@hisilicon.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Andrzej Pietrasiewicz
|
b88dbe38dc |
media: uapi: Add VP9 stateless decoder controls
Add the VP9 stateless decoder controls plus the documentation that goes with it. Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Co-developed-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> Co-developed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> |
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Lorenzo Bianconi
|
bc2dfc0283 |
cfg80211: implement APIs for dedicated radar detection HW
If a dedicated (off-channel) radar detection hardware (chain) is available in the hardware/driver, allow this to be used by calling the NL80211_CMD_RADAR_DETECT command with a new flag attribute requesting off-channel radar detection is used. Offchannel CAC (channel availability check) avoids the CAC downtime when switching to a radar channel or when turning on the AP. Drivers advertise support for this using the new feature flag NL80211_EXT_FEATURE_RADAR_OFFCHAN. Tested-by: Evelyn Tsai <evelyn.tsai@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/7468e291ef5d05d692c1738d25b8f778d8ea5c3f.1634979655.git.lorenzo@kernel.org Link: https://lore.kernel.org/r/1e60e60fef00e14401adae81c3d49f3e5f307537.1634979655.git.lorenzo@kernel.org Link: https://lore.kernel.org/r/85fa50f57fc3adb2934c8d9ca0be30394de6b7e8.1634979655.git.lorenzo@kernel.org Link: https://lore.kernel.org/r/4b6c08671ad59aae0ac46fc94c02f31b1610eb72.1634979655.git.lorenzo@kernel.org Link: https://lore.kernel.org/r/241849ccaf2c228873c6f8495bf87b19159ba458.1634979655.git.lorenzo@kernel.org [remove offchan_mutex, fix cfg80211_stop_offchan_radar_detection(), remove gfp_t argument, fix documentation, fix tracing] Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
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Jakub Kicinski
|
50fc24944a |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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YC Hung
|
e6feefa541
|
ASoC: SOF: tokens: add token for Mediatek AFE
Add the definition for Mediatek audio front end(AFE) tokens,include AFE sampling rate, channels, and format. Signed-off-by: YC Hung <yc.hung@mediatek.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> Link: https://lore.kernel.org/r/20211118100749.54628-3-daniel.baluta@oss.nxp.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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Felix Kuehling
|
b5f5738480 |
drm/amdkfd: Add sysfs bitfields and enums to uAPI
These bits are de-facto part of the uAPI, so declare them in a uAPI header. The corresponding bit-fields and enums in user mode are defined in https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface/blob/master/include/hsakmttypes.h HSA_CAP_... -> HSA_CAPABILITY HSA_MEM_HEAP_TYPE_... -> HSA_HEAPTYPE HSA_MEM_FLAGS_... -> HSA_MEMORYPROPERTY HSA_CACHE_TYPE_... -> HsaCacheType HSA_IOLINK_TYPE_... -> HSA_IOLINKTYPE HSA_IOLINK_FLAGS_... -> HSA_LINKPROPERTY Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Jonathan Kim <jonathan.kim@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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Tiezhu Yang
|
ebf7f6f0a6 |
bpf: Change value of MAX_TAIL_CALL_CNT from 32 to 33
In the current code, the actual max tail call count is 33 which is greater than MAX_TAIL_CALL_CNT (defined as 32). The actual limit is not consistent with the meaning of MAX_TAIL_CALL_CNT and thus confusing at first glance. We can see the historical evolution from commit |
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Jakub Kicinski
|
a5bdc36354 |
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says: ==================== pull-request: bpf-next 2021-11-15 We've added 72 non-merge commits during the last 13 day(s) which contain a total of 171 files changed, 2728 insertions(+), 1143 deletions(-). The main changes are: 1) Add btf_type_tag attributes to bring kernel annotations like __user/__rcu to BTF such that BPF verifier will be able to detect misuse, from Yonghong Song. 2) Big batch of libbpf improvements including various fixes, future proofing APIs, and adding a unified, OPTS-based bpf_prog_load() low-level API, from Andrii Nakryiko. 3) Add ingress_ifindex to BPF_SK_LOOKUP program type for selectively applying the programmable socket lookup logic to packets from a given netdev, from Mark Pashmfouroush. 4) Remove the 128M upper JIT limit for BPF programs on arm64 and add selftest to ensure exception handling still works, from Russell King and Alan Maguire. 5) Add a new bpf_find_vma() helper for tracing to map an address to the backing file such as shared library, from Song Liu. 6) Batch of various misc fixes to bpftool, fixing a memory leak in BPF program dump, updating documentation and bash-completion among others, from Quentin Monnet. 7) Deprecate libbpf bpf_program__get_prog_info_linear() API and migrate its users as the API is heavily tailored around perf and is non-generic, from Dave Marchevsky. 8) Enable libbpf's strict mode by default in bpftool and add a --legacy option as an opt-out for more relaxed BPF program requirements, from Stanislav Fomichev. 9) Fix bpftool to use libbpf_get_error() to check for errors, from Hengqi Chen. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (72 commits) bpftool: Use libbpf_get_error() to check error bpftool: Fix mixed indentation in documentation bpftool: Update the lists of names for maps and prog-attach types bpftool: Fix indent in option lists in the documentation bpftool: Remove inclusion of utilities.mak from Makefiles bpftool: Fix memory leak in prog_dump() selftests/bpf: Fix a tautological-constant-out-of-range-compare compiler warning selftests/bpf: Fix an unused-but-set-variable compiler warning bpf: Introduce btf_tracing_ids bpf: Extend BTF_ID_LIST_GLOBAL with parameter for number of IDs bpftool: Enable libbpf's strict mode by default docs/bpf: Update documentation for BTF_KIND_TYPE_TAG support selftests/bpf: Clarify llvm dependency with btf_tag selftest selftests/bpf: Add a C test for btf_type_tag selftests/bpf: Rename progs/tag.c to progs/btf_decl_tag.c selftests/bpf: Test BTF_KIND_DECL_TAG for deduplication selftests/bpf: Add BTF_KIND_TYPE_TAG unit tests selftests/bpf: Test libbpf API function btf__add_type_tag() bpftool: Support BTF_KIND_TYPE_TAG libbpf: Support BTF_KIND_TYPE_TAG ... ==================== Link: https://lore.kernel.org/r/20211115162008.25916-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Jakub Kicinski
|
2f6a470d65 |
Revert "Merge branch 'mctp-i2c-driver'"
This reverts commit |
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Matt Johnston
|
84a107e68b |
i2c: dev: Handle 255 byte blocks for i2c ioctl
I2C_SMBUS is limited to 32 bytes due to compatibility with the 32 byte i2c_smbus_data.block I2C_RDWR allows larger transfers if sufficient sized buffers are passed. Signed-off-by: Matt Johnston <matt@codeconstruct.com.au> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Matt Johnston
|
13cae4a104 |
i2c: core: Allow 255 byte transfers for SMBus 3.x
SMBus 3.0 increased the maximum block transfer size from 32 bytes to 255 bytes. We increase the size of struct i2c_smbus_data's block[] member. i2c_smbus_xfer() and i2c_smbus_xfer_emulated() now support 255 byte block operations, other block functions remain limited to 32 bytes for compatibility with existing callers. We allow adapters to indicate support for the larger size with I2C_FUNC_SMBUS_V3_BLOCK. Most emulated drivers should be able to use 255 byte blocks by replacing I2C_SMBUS_BLOCK_MAX with I2C_SMBUS_V3_BLOCK_MAX though some will have hardware limitations that need testing. Signed-off-by: Matt Johnston <matt@codeconstruct.com.au> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Dillon Min
|
ef9f18a9e3 |
media: v4l2-ctrls: Add RGB color effects control
Add V4L2_COLORFX_SET_RGB color effects control, V4L2_CID_COLORFX_RGB for RGB color setting. with two mirror changes: - change 0xFFFFFF to 0xffffff - fix comments 2^24 to 2^24 - 1 [hverkuil: dropped spaces around + with V4L2_CID_BASE for consistency] Signed-off-by: Dillon Min <dillon.minfei@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> |
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|
Linus Torvalds
|
ccfff0a2bd |
virtio-mem: support VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE
Support the VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE feature in virtio-mem, now that "accidential" access to logically unplugged memory inside added Linux memory blocks is no longer possible, because we: 1. Removed /dev/kmem in commit |
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Linus Torvalds
|
4d6fe79fde |
New x86 features:
* Guest API and guest kernel support for SEV live migration
* SEV and SEV-ES intra-host migration
Bugfixes and cleanups for x86:
* Fix misuse of gfn-to-pfn cache when recording guest steal time / preempted status
* Fix selftests on APICv machines
* Fix sparse warnings
* Fix detection of KVM features in CPUID
* Cleanups for bogus writes to MSR_KVM_PV_EOI_EN
* Fixes and cleanups for MSR bitmap handling
* Cleanups for INVPCID
* Make x86 KVM_SOFT_MAX_VCPUS consistent with other architectures
Bugfixes for ARM:
* Fix finalization of host stage2 mappings
* Tighten the return value of kvm_vcpu_preferred_target()
* Make sure the extraction of ESR_ELx.EC is limited to architected bits
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull more kvm updates from Paolo Bonzini:
"New x86 features:
- Guest API and guest kernel support for SEV live migration
- SEV and SEV-ES intra-host migration
Bugfixes and cleanups for x86:
- Fix misuse of gfn-to-pfn cache when recording guest steal time /
preempted status
- Fix selftests on APICv machines
- Fix sparse warnings
- Fix detection of KVM features in CPUID
- Cleanups for bogus writes to MSR_KVM_PV_EOI_EN
- Fixes and cleanups for MSR bitmap handling
- Cleanups for INVPCID
- Make x86 KVM_SOFT_MAX_VCPUS consistent with other architectures
Bugfixes for ARM:
- Fix finalization of host stage2 mappings
- Tighten the return value of kvm_vcpu_preferred_target()
- Make sure the extraction of ESR_ELx.EC is limited to architected
bits"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (34 commits)
KVM: SEV: unify cgroup cleanup code for svm_vm_migrate_from
KVM: x86: move guest_pv_has out of user_access section
KVM: x86: Drop arbitrary KVM_SOFT_MAX_VCPUS
KVM: Move INVPCID type check from vmx and svm to the common kvm_handle_invpcid()
KVM: VMX: Add a helper function to retrieve the GPR index for INVPCID, INVVPID, and INVEPT
KVM: nVMX: Clean up x2APIC MSR handling for L2
KVM: VMX: Macrofy the MSR bitmap getters and setters
KVM: nVMX: Handle dynamic MSR intercept toggling
KVM: nVMX: Query current VMCS when determining if MSR bitmaps are in use
KVM: x86: Don't update vcpu->arch.pv_eoi.msr_val when a bogus value was written to MSR_KVM_PV_EOI_EN
KVM: x86: Rename kvm_lapic_enable_pv_eoi()
KVM: x86: Make sure KVM_CPUID_FEATURES really are KVM_CPUID_FEATURES
KVM: x86: Add helper to consolidate core logic of SET_CPUID{2} flows
kvm: mmu: Use fast PF path for access tracking of huge pages when possible
KVM: x86/mmu: Properly dereference rcu-protected TDP MMU sptep iterator
KVM: x86: inhibit APICv when KVM_GUESTDBG_BLOCKIRQ active
kvm: x86: Convert return type of *is_valid_rdpmc_ecx() to bool
KVM: x86: Fix recording of guest steal time / preempted status
selftest: KVM: Add intra host migration tests
selftest: KVM: Add open sev dev helper
...
|
||
|
Linus Torvalds
|
3b81bf78b7 |
RTC for 5.16
Subsystem:
- Add new ioctl to get and set extra RTC parameters, this includes backup
switch mode
- Expose available features to userspace, in particular, when alarmas have a
resolution of one minute instead of a second.
- Let the core handle those alarms with a minute resolution
New driver:
- MSTAR MSC313 RTC
Drivers:
- Add SPI ID table where necessary
- Add BSM support for rv3028, rv3032 and pcf8523
- s3c: set RTC range
- rx8025: set range, implement .set_offset and .read_offset
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Merge tag 'rtc-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"This includes new ioctls to get and set parameters and in particular
the backup switch mode that is needed for some RTCs to actually enable
the backup voltage (and have a useful RTC).
The same interface can also be used to get the actual features
supported by the RTC so userspace has a better way than trying and
failing.
Summary:
Subsystem:
- Add new ioctl to get and set extra RTC parameters, this includes
backup switch mode
- Expose available features to userspace, in particular, when alarmas
have a resolution of one minute instead of a second.
- Let the core handle those alarms with a minute resolution
New driver:
- MSTAR MSC313 RTC
Drivers:
- Add SPI ID table where necessary
- Add BSM support for rv3028, rv3032 and pcf8523
- s3c: set RTC range
- rx8025: set range, implement .set_offset and .read_offset"
* tag 'rtc-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (50 commits)
rtc: rx8025: use .set_offset/.read_offset
rtc: rx8025: use rtc_add_group
rtc: rx8025: clear RTC_FEATURE_ALARM when alarm are not supported
rtc: rx8025: set range
rtc: rx8025: let the core handle the alarm resolution
rtc: rx8025: switch to devm_rtc_allocate_device
rtc: ab8500: let the core handle the alarm resolution
rtc: ab-eoz9: support UIE when available
rtc: ab-eoz9: use RTC_FEATURE_UPDATE_INTERRUPT
rtc: rv3032: let the core handle the alarm resolution
rtc: s35390a: let the core handle the alarm resolution
rtc: handle alarms with a minute resolution
rtc: pcf85063: silence cppcheck warning
rtc: rv8803: fix writing back ctrl in flag register
rtc: s3c: Add time range
rtc: s3c: Extract read/write IO into separate functions
rtc: s3c: Remove usage of devm_rtc_device_register()
rtc: tps80031: Remove driver
rtc: sun6i: Allow probing without an early clock provider
rtc: pcf8523: add BSM support
...
|
||
Yonghong Song
|
8c42d2fa4e |
bpf: Support BTF_KIND_TYPE_TAG for btf_type_tag attributes
LLVM patches ([1] for clang, [2] and [3] for BPF backend) added support for btf_type_tag attributes. This patch added support for the kernel. The main motivation for btf_type_tag is to bring kernel annotations __user, __rcu etc. to btf. With such information available in btf, bpf verifier can detect mis-usages and reject the program. For example, for __user tagged pointer, developers can then use proper helper like bpf_probe_read_user() etc. to read the data. BTF_KIND_TYPE_TAG may also useful for other tracing facility where instead of to require user to specify kernel/user address type, the kernel can detect it by itself with btf. [1] https://reviews.llvm.org/D111199 [2] https://reviews.llvm.org/D113222 [3] https://reviews.llvm.org/D113496 Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211112012609.1505032-1-yhs@fb.com |
||
|
Linus Torvalds
|
f54ca91fe6 |
Networking fixes for 5.16-rc1, including fixes from bpf, can
and netfilter.
Current release - regressions:
- bpf: do not reject when the stack read size is different
from the tracked scalar size
- net: fix premature exit from NAPI state polling in napi_disable()
- riscv, bpf: fix RV32 broken build, and silence RV64 warning
Current release - new code bugs:
- net: fix possible NULL deref in sock_reserve_memory
- amt: fix error return code in amt_init(); fix stopping the workqueue
- ax88796c: use the correct ioctl callback
Previous releases - always broken:
- bpf: stop caching subprog index in the bpf_pseudo_func insn
- security: fixups for the security hooks in sctp
- nfc: add necessary privilege flags in netlink layer, limit operations
to admin only
- vsock: prevent unnecessary refcnt inc for non-blocking connect
- net/smc: fix sk_refcnt underflow on link down and fallback
- nfnetlink_queue: fix OOB when mac header was cleared
- can: j1939: ignore invalid messages per standard
- bpf, sockmap:
- fix race in ingress receive verdict with redirect to self
- fix incorrect sk_skb data_end access when src_reg = dst_reg
- strparser, and tls are reusing qdisc_skb_cb and colliding
- ethtool: fix ethtool msg len calculation for pause stats
- vlan: fix a UAF in vlan_dev_real_dev() when ref-holder tries
to access an unregistering real_dev
- udp6: make encap_rcv() bump the v6 not v4 stats
- drv: prestera: add explicit padding to fix m68k build
- drv: felix: fix broken VLAN-tagged PTP under VLAN-aware bridge
- drv: mvpp2: fix wrong SerDes reconfiguration order
Misc & small latecomers:
- ipvs: auto-load ipvs on genl access
- mctp: sanity check the struct sockaddr_mctp padding fields
- libfs: support RENAME_EXCHANGE in simple_rename()
- avoid double accounting for pure zerocopy skbs
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf, can and netfilter.
Current release - regressions:
- bpf: do not reject when the stack read size is different from the
tracked scalar size
- net: fix premature exit from NAPI state polling in napi_disable()
- riscv, bpf: fix RV32 broken build, and silence RV64 warning
Current release - new code bugs:
- net: fix possible NULL deref in sock_reserve_memory
- amt: fix error return code in amt_init(); fix stopping the
workqueue
- ax88796c: use the correct ioctl callback
Previous releases - always broken:
- bpf: stop caching subprog index in the bpf_pseudo_func insn
- security: fixups for the security hooks in sctp
- nfc: add necessary privilege flags in netlink layer, limit
operations to admin only
- vsock: prevent unnecessary refcnt inc for non-blocking connect
- net/smc: fix sk_refcnt underflow on link down and fallback
- nfnetlink_queue: fix OOB when mac header was cleared
- can: j1939: ignore invalid messages per standard
- bpf, sockmap:
- fix race in ingress receive verdict with redirect to self
- fix incorrect sk_skb data_end access when src_reg = dst_reg
- strparser, and tls are reusing qdisc_skb_cb and colliding
- ethtool: fix ethtool msg len calculation for pause stats
- vlan: fix a UAF in vlan_dev_real_dev() when ref-holder tries to
access an unregistering real_dev
- udp6: make encap_rcv() bump the v6 not v4 stats
- drv: prestera: add explicit padding to fix m68k build
- drv: felix: fix broken VLAN-tagged PTP under VLAN-aware bridge
- drv: mvpp2: fix wrong SerDes reconfiguration order
Misc & small latecomers:
- ipvs: auto-load ipvs on genl access
- mctp: sanity check the struct sockaddr_mctp padding fields
- libfs: support RENAME_EXCHANGE in simple_rename()
- avoid double accounting for pure zerocopy skbs"
* tag 'net-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (123 commits)
selftests/net: udpgso_bench_rx: fix port argument
net: wwan: iosm: fix compilation warning
cxgb4: fix eeprom len when diagnostics not implemented
net: fix premature exit from NAPI state polling in napi_disable()
net/smc: fix sk_refcnt underflow on linkdown and fallback
net/mlx5: Lag, fix a potential Oops with mlx5_lag_create_definer()
gve: fix unmatched u64_stats_update_end()
net: ethernet: lantiq_etop: Fix compilation error
selftests: forwarding: Fix packet matching in mirroring selftests
vsock: prevent unnecessary refcnt inc for nonblocking connect
net: marvell: mvpp2: Fix wrong SerDes reconfiguration order
net: ethernet: ti: cpsw_ale: Fix access to un-initialized memory
net: stmmac: allow a tc-taprio base-time of zero
selftests: net: test_vxlan_under_vrf: fix HV connectivity test
net: hns3: allow configure ETS bandwidth of all TCs
net: hns3: remove check VF uc mac exist when set by PF
net: hns3: fix some mac statistics is always 0 in device version V2
net: hns3: fix kernel crash when unload VF while it is being reset
net: hns3: sync rx ring head in echo common pull
net: hns3: fix pfc packet number incorrect after querying pfc parameters
...
|
||
Paolo Bonzini
|
1f05833193 |
Merge branch 'kvm-sev-move-context' into kvm-master
Add support for AMD SEV and SEV-ES intra-host migration support. Intra host migration provides a low-cost mechanism for userspace VMM upgrades. In the common case for intra host migration, we can rely on the normal ioctls for passing data from one VMM to the next. SEV, SEV-ES, and other confidential compute environments make most of this information opaque, and render KVM ioctls such as "KVM_GET_REGS" irrelevant. As a result, we need the ability to pass this opaque metadata from one VMM to the next. The easiest way to do this is to leave this data in the kernel, and transfer ownership of the metadata from one KVM VM (or vCPU) to the next. In-kernel hand off makes it possible to move any data that would be unsafe/impossible for the kernel to hand directly to userspace, and cannot be reproduced using data that can be handed to userspace. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
||
Peter Gonda
|
b56639318b |
KVM: SEV: Add support for SEV intra host migration
For SEV to work with intra host migration, contents of the SEV info struct such as the ASID (used to index the encryption key in the AMD SP) and the list of memory regions need to be transferred to the target VM. This change adds a commands for a target VMM to get a source SEV VM's sev info. Signed-off-by: Peter Gonda <pgonda@google.com> Suggested-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Marc Orr <marcorr@google.com> Cc: Marc Orr <marcorr@google.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Sean Christopherson <seanjc@google.com> Cc: David Rientjes <rientjes@google.com> Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: Brijesh Singh <brijesh.singh@amd.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Wanpeng Li <wanpengli@tencent.com> Cc: Jim Mattson <jmattson@google.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Message-Id: <20211021174303.385706-3-pgonda@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
||
|
Linus Torvalds
|
38764c7340 |
A slow cycle for nfsd: mainly cleanup, including Neil's patch dropping
support for a filehandle format deprecated 20 years ago, and further
xdr-related cleanup from Chuck.
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Merge tag 'nfsd-5.16' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
"A slow cycle for nfsd: mainly cleanup, including Neil's patch dropping
support for a filehandle format deprecated 20 years ago, and further
xdr-related cleanup from Chuck"
* tag 'nfsd-5.16' of git://linux-nfs.org/~bfields/linux: (26 commits)
nfsd4: remove obselete comment
nfsd: document server-to-server-copy parameters
NFSD:fix boolreturn.cocci warning
nfsd: update create verifier comment
SUNRPC: Change return value type of .pc_encode
SUNRPC: Replace the "__be32 *p" parameter to .pc_encode
NFSD: Save location of NFSv4 COMPOUND status
SUNRPC: Change return value type of .pc_decode
SUNRPC: Replace the "__be32 *p" parameter to .pc_decode
SUNRPC: De-duplicate .pc_release() call sites
SUNRPC: Simplify the SVC dispatch code path
SUNRPC: Capture value of xdr_buf::page_base
SUNRPC: Add trace event when alloc_pages_bulk() makes no progress
svcrdma: Split svcrmda_wc_{read,write} tracepoints
svcrdma: Split the svcrdma_wc_send() tracepoint
svcrdma: Split the svcrdma_wc_receive() tracepoint
NFSD: Have legacy NFSD WRITE decoders use xdr_stream_subsegment()
SUNRPC: xdr_stream_subsegment() must handle non-zero page_bases
NFSD: Initialize pointer ni with NULL and not plain integer 0
NFSD: simplify struct nfsfh
...
|
||
Mark Pashmfouroush
|
f89315650b |
bpf: Add ingress_ifindex to bpf_sk_lookup
It may be helpful to have access to the ifindex during bpf socket lookup. An example may be to scope certain socket lookup logic to specific interfaces, i.e. an interface may be made exempt from custom lookup code. Add the ifindex of the arriving connection to the bpf_sk_lookup API. Signed-off-by: Mark Pashmfouroush <markpash@cloudflare.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20211110111016.5670-2-markpash@cloudflare.com |
||
|
Linus Torvalds
|
5147da902e |
Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull exit cleanups from Eric Biederman: "While looking at some issues related to the exit path in the kernel I found several instances where the code is not using the existing abstractions properly. This set of changes introduces force_fatal_sig a way of sending a signal and not allowing it to be caught, and corrects the misuse of the existing abstractions that I found. A lot of the misuse of the existing abstractions are silly things such as doing something after calling a no return function, rolling BUG by hand, doing more work than necessary to terminate a kernel thread, or calling do_exit(SIGKILL) instead of calling force_sig(SIGKILL). In the review a deficiency in force_fatal_sig and force_sig_seccomp where ptrace or sigaction could prevent the delivery of the signal was found. I have added a change that adds SA_IMMUTABLE to change that makes it impossible to interrupt the delivery of those signals, and allows backporting to fix force_sig_seccomp And Arnd found an issue where a function passed to kthread_run had the wrong prototype, and after my cleanup was failing to build." * 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (23 commits) soc: ti: fix wkup_m3_rproc_boot_thread return type signal: Add SA_IMMUTABLE to ensure forced siganls do not get changed signal: Replace force_sigsegv(SIGSEGV) with force_fatal_sig(SIGSEGV) exit/r8188eu: Replace the macro thread_exit with a simple return 0 exit/rtl8712: Replace the macro thread_exit with a simple return 0 exit/rtl8723bs: Replace the macro thread_exit with a simple return 0 signal/x86: In emulate_vsyscall force a signal instead of calling do_exit signal/sparc32: In setup_rt_frame and setup_fram use force_fatal_sig signal/sparc32: Exit with a fatal signal when try_to_clear_window_buffer fails exit/syscall_user_dispatch: Send ordinary signals on failure signal: Implement force_fatal_sig exit/kthread: Have kernel threads return instead of calling do_exit signal/s390: Use force_sigsegv in default_trap_handler signal/vm86_32: Properly send SIGSEGV when the vm86 state cannot be saved. signal/vm86_32: Replace open coded BUG_ON with an actual BUG_ON signal/sparc: In setup_tsb_params convert open coded BUG into BUG signal/powerpc: On swapcontext failure force SIGSEGV signal/sh: Use force_sig(SIGKILL) instead of do_group_exit(SIGKILL) signal/mips: Update (_save|_restore)_fp_context to fail with -EFAULT signal/sparc32: Remove unreachable do_exit in do_sparc_fault ... |
||
|
Linus Torvalds
|
a41b74451b |
kernel.sys.v5.16
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Merge tag 'kernel.sys.v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull prctl updates from Christian Brauner:
"This contains the missing prctl uapi pieces for PR_SCHED_CORE.
In order to activate core scheduling the caller is expected to specify
the scope of the new core scheduling domain.
For example, passing 2 in the 4th argument of
prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, <pid>, 2, 0);
would indicate that the new core scheduling domain encompasses all
tasks in the process group of <pid>. Specifying 0 would only create a
core scheduling domain for the thread identified by <pid> and 2 would
encompass the whole thread-group of <pid>.
Note, the values 0, 1, and 2 correspond to PIDTYPE_PID, PIDTYPE_TGID,
and PIDTYPE_PGID. A first version tried to expose those values
directly to which I objected because:
- PIDTYPE_* is an enum that is kernel internal which we should not
expose to userspace directly.
- PIDTYPE_* indicates what a given struct pid is used for it doesn't
express a scope.
But what the 4th argument of PR_SCHED_CORE prctl() expresses is the
scope of the operation, i.e. the scope of the core scheduling domain
at creation time. So Eugene's patch now simply introduces three new
defines PR_SCHED_CORE_SCOPE_THREAD, PR_SCHED_CORE_SCOPE_THREAD_GROUP,
and PR_SCHED_CORE_SCOPE_PROCESS_GROUP. They simply express what
happens.
This has been on the mailing list for quite a while with all relevant
scheduler folks Cced. I announced multiple times that I'd pick this up
if I don't see or her anyone else doing it. None of this touches
proper scheduler code but only concerns uapi so I think this is fine.
With core scheduling being quite common now for vm managers (e.g.
moving individual vcpu threads into their own core scheduling domain)
and container managers (e.g. moving the init process into its own core
scheduling domain and letting all created children inherit it) having
to rely on raw numbers passed as the 4th argument in prctl() is a bit
annoying and everyone is starting to come up with their own defines"
* tag 'kernel.sys.v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
uapi/linux/prctl: provide macro definitions for the PR_SCHED_CORE type argument
|
||
|
Linus Torvalds
|
89fa0be0a0 |
arm64 fixes for -rc1
- Fix double-evaluation of 'pte' macro argument when using 52-bit PAs - Fix signedness of some MTE prctl PR_* constants - Fix kmemleak memory usage by skipping early pgtable allocations - Fix printing of CPU feature register strings - Remove redundant -nostdlib linker flag for vDSO binaries -----BEGIN PGP SIGNATURE----- iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAmGL8ukQHHdpbGxAa2Vy bmVsLm9yZwAKCRC3rHDchMFjNB0XCADIFxVeLM3YMPsnDC6ttmGp/w1TXh5RoNBm IY5utdu8ybdrdCYO//Z6i7rQiYwPBRbR8Xts1LAfZDVuD/IPKqxiY+wjMe9FYu0U lb14dnT5iI7L3l0yo/5s1EC8FC/pfCMwi50+trAS5H5jo2wg/+6B/bgbymzTd1ZB vzVVzyGv1L/3xKHT4uEDjY1jMPRBH4Ugx2bJ1tzRzsC3Gz0D7ZeVd1Dg3ftPMsqI MA4Q5QeE9MsafcV8sKDRLnzNSYEr50goA0xtCre81VmJDNcm/y6UybUCF75KU72M kAOImXs0+wrDqNIocYgYlSWRu9xjw8qjoxjnyqikFx47HBesjY8T =pHQk -----END PGP SIGNATURE----- Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: - Fix double-evaluation of 'pte' macro argument when using 52-bit PAs - Fix signedness of some MTE prctl PR_* constants - Fix kmemleak memory usage by skipping early pgtable allocations - Fix printing of CPU feature register strings - Remove redundant -nostdlib linker flag for vDSO binaries * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: pgtable: make __pte_to_phys/__phys_to_pte_val inline functions arm64: Track no early_pgtable_alloc() for kmemleak arm64: mte: change PR_MTE_TCF_NONE back into an unsigned long arm64: vdso: remove -nostdlib compiler flag arm64: arm64_ftr_reg->name may not be a human-readable string |
||
David Hildenbrand
|
61082ad6a6 |
virtio-mem: support VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE
The initial virtio-mem spec states that while unplugged memory should not be read, the device still has to allow for reading unplugged memory inside the usable region. The primary motivation for this default handling was to simplify bringup of virtio-mem, because there were corner cases where Linux might have accidentially read unplugged memory inside added Linux memory blocks. In the meantime, we: 1. Removed /dev/kmem in commit |
||
|
Linus Torvalds
|
c183e1707a |
- Add DM core support for emitting audit events through the audit
subsystem. Also enhance both the integrity and crypt targets to emit events to via dm-audit. - Various other simple code improvements and cleanups. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEJfWUX4UqZ4x1O2wixSPxCi2dA1oFAmGJlFkACgkQxSPxCi2d A1pqwwf/YZ6kNKRQaKF1mbkkHOxa/ULf7qIhi/R0epwJu4j1RGsCACS34EqzLc4c x15h6flCNj1IBVAqTvMUETYTjTLtyrcfD0yBRWYw2RL0ksHMHyMvd1r/7aE64+pj EeZk9Xzcx3Gsq9GOzKfYA2AX0PrypkKSjgHK7hgv+Jh5heqkFcnMXSl3l7BQ6vbr ue9joPSI7+6eVFMDn32KxyHzfm6zZo1nmKZ6tQBBHD1D9yBqWTAhXiyXhRA+BOYH Tg5wE1fvZ/htyZNEc1cMRArzLF6q9pEU4r8j472N6IcJbhIJzSu0V60zVvexNWG3 fJSIWqlta1KFK8SQttmDmfFnJiFcyw== =t097 -----END PGP SIGNATURE----- Merge tag 'for-5.16/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper updates from Mike Snitzer: - Add DM core support for emitting audit events through the audit subsystem. Also enhance both the integrity and crypt targets to emit events to via dm-audit. - Various other simple code improvements and cleanups. * tag 'for-5.16/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm table: log table creation error code dm: make workqueue names device-specific dm writecache: Make use of the helper macro kthread_run() dm crypt: Make use of the helper macro kthread_run() dm verity: use bvec_kmap_local in verity_for_bv_block dm log writes: use memcpy_from_bvec in log_writes_map dm integrity: use bvec_kmap_local in __journal_read_write dm integrity: use bvec_kmap_local in integrity_metadata dm: add add_disk() error handling dm: Remove redundant flush_workqueue() calls dm crypt: log aead integrity violations to audit subsystem dm integrity: log audit events for dm-integrity target dm: introduce audit event module for device mapper |
||
|
Linus Torvalds
|
cdd39b0539 |
fuse update for 5.16
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCYYk8VgAKCRDh3BK/laaZ PIUGAP4yYrlK574xnrdfZgwmTEx03/6ze0ZOA/J82mwdyxV8NgD/W8wyheHyXOJR Mnk2eQj4avgwctHrjmyzH3jFFcT1Sgw= =nrFv -----END PGP SIGNATURE----- Merge tag 'fuse-update-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse Pull fuse updates from Miklos Szeredi: - Fix a possible of deadlock in case inode writeback is in progress during dentry reclaim - Fix a crash in case of page stealing - Selectively invalidate cached attributes, possibly improving performance - Allow filesystems to disable data flushing from ->flush() - Misc fixes and cleanups * tag 'fuse-update-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (23 commits) fuse: fix page stealing virtiofs: use strscpy for copying the queue name fuse: add FOPEN_NOFLUSH fuse: only update necessary attributes fuse: take cache_mask into account in getattr fuse: add cache_mask fuse: move reverting attributes to fuse_change_attributes() fuse: simplify local variables holding writeback cache state fuse: cleanup code conditional on fc->writeback_cache fuse: fix attr version comparison in fuse_read_update_size() fuse: always invalidate attributes after writes fuse: rename fuse_write_update_size() fuse: don't bump attr_version in cached write fuse: selective attribute invalidation fuse: don't increment nlink in link() fuse: decrement nlink on overwriting rename fuse: simplify __fuse_write_file_get() fuse: move fuse_invalidate_attr() into fuse_update_ctime() fuse: delete redundant code fuse: use kmap_local_page() ... |
||
|
Linus Torvalds
|
d20f7a09e5 |
gpio updates for v5.16
- new driver: gpio-modepin (plus relevant change in zynqmp firmware)
- add interrupt support to gpio-virtio
- enable the 'gpio-line-names' property in the DT bindings for gpio-rockchip
- use the subsystem helpers where applicable in gpio-uniphier instead of
accessing IRQ structures directly
- code shrink in gpio-xilinx
- add interrupt to gpio-mlxbf2 (and include the removal of custom interrupt
code from the mellanox ethernet driver)
- support multiple interrupts per bank in gpio-tegra186 (and force one interrupt
per bank in older models)
- fix GPIO line IRQ offset calculation in gpio-realtek-otto
- drop unneeded MODULE_ALIAS expansions in multiple drivers
- code cleanup in gpio-aggregator
- minor improvements in gpio-max730x and gpio-mc33880
- Kconfig cleanups
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Merge tag 'gpio-updates-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have a single new driver, new features in others and some cleanups
all over the place.
Nothing really stands out and it is all relatively small.
- new driver: gpio-modepin (plus relevant change in zynqmp firmware)
- add interrupt support to gpio-virtio
- enable the 'gpio-line-names' property in the DT bindings for
gpio-rockchip
- use the subsystem helpers where applicable in gpio-uniphier instead
of accessing IRQ structures directly
- code shrink in gpio-xilinx
- add interrupt to gpio-mlxbf2 (and include the removal of custom
interrupt code from the mellanox ethernet driver)
- support multiple interrupts per bank in gpio-tegra186 (and force
one interrupt per bank in older models)
- fix GPIO line IRQ offset calculation in gpio-realtek-otto
- drop unneeded MODULE_ALIAS expansions in multiple drivers
- code cleanup in gpio-aggregator
- minor improvements in gpio-max730x and gpio-mc33880
- Kconfig cleanups"
* tag 'gpio-updates-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
virtio_gpio: drop packed attribute
gpio: virtio: Add IRQ support
gpio: realtek-otto: fix GPIO line IRQ offset
gpio: clean up Kconfig file
net: mellanox: mlxbf_gige: Replace non-standard interrupt handling
gpio: mlxbf2: Introduce IRQ support
gpio: mc33880: Drop if with an always false condition
gpio: max730x: Make __max730x_remove() return void
gpio: aggregator: Wrap access to gpiochip_fwd.tmp[]
gpio: modepin: Add driver support for modepin GPIO controller
dt-bindings: gpio: zynqmp: Add binding documentation for modepin
firmware: zynqmp: Add MMIO read and write support for PS_MODE pin
gpio: tps65218: drop unneeded MODULE_ALIAS
gpio: max77620: drop unneeded MODULE_ALIAS
gpio: xilinx: simplify getting .driver_data
gpio: tegra186: Support multiple interrupts per bank
gpio: tegra186: Force one interrupt per bank
gpio: uniphier: Use helper functions to get private data from IRQ data
gpio: uniphier: Use helper function to get IRQ hardware number
dt-bindings: gpio: add gpio-line-names to rockchip,gpio-bank.yaml
|
||
Peter Collingbourne
|
aedad3e1c6 |
arm64: mte: change PR_MTE_TCF_NONE back into an unsigned long
This constant was previously an unsigned long, but was changed
into an int in commit
|
||
Song Liu
|
7c7e3d31e7 |
bpf: Introduce helper bpf_find_vma
In some profiler use cases, it is necessary to map an address to the backing file, e.g., a shared library. bpf_find_vma helper provides a flexible way to achieve this. bpf_find_vma maps an address of a task to the vma (vm_area_struct) for this address, and feed the vma to an callback BPF function. The callback function is necessary here, as we need to ensure mmap_sem is unlocked. It is necessary to lock mmap_sem for find_vma. To lock and unlock mmap_sem safely when irqs are disable, we use the same mechanism as stackmap with build_id. Specifically, when irqs are disabled, the unlocked is postponed in an irq_work. Refactor stackmap.c so that the irq_work is shared among bpf_find_vma and stackmap helpers. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Tested-by: Hengqi Chen <hengqi.chen@gmail.com> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20211105232330.1936330-2-songliubraving@fb.com |
||
|
Linus Torvalds
|
e582e08ec0 |
Auxdisplay improvements:
- 4-digit 7-segment and quad alphanumeric display support for
the ht16k33 driver, allowing the user to display and scroll
text messages, from Geert Uytterhoeven.
- An assortment of fixes and cleanups from Geert Uytterhoeven.
- Header cleanups from Mianhan Liu.
- Whitespace cleanup from Huiquan Deng.
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Merge tag 'auxdisplay-for-linus-v5.16' of git://github.com/ojeda/linux
Pull auxdisplay updates from Miguel Ojeda:
- 4-digit 7-segment and quad alphanumeric display support for the
ht16k33 driver, allowing the user to display and scroll text
messages, from Geert Uytterhoeven.
- An assortment of fixes and cleanups from Geert Uytterhoeven.
- Header cleanups from Mianhan Liu.
- Whitespace cleanup from Huiquan Deng.
* tag 'auxdisplay-for-linus-v5.16' of git://github.com/ojeda/linux: (26 commits)
MAINTAINERS: Add DT Bindings for Auxiliary Display Drivers
auxdisplay: cfag12864bfb: code indent should use tabs where possible
auxdisplay: ht16k33: remove superfluous header files
auxdisplay: ks0108: remove superfluous header files
auxdisplay: cfag12864bfb: remove superfluous header files
auxdisplay: ht16k33: Make use of device properties
auxdisplay: ht16k33: Add LED support
dt-bindings: auxdisplay: ht16k33: Document LED subnode
auxdisplay: ht16k33: Add support for segment displays
auxdisplay: ht16k33: Extract frame buffer probing
auxdisplay: ht16k33: Extract ht16k33_brightness_set()
auxdisplay: ht16k33: Move delayed work
auxdisplay: ht16k33: Add helper variable dev
auxdisplay: ht16k33: Convert to simple i2c probe function
auxdisplay: ht16k33: Remove unneeded error check in keypad probe()
auxdisplay: ht16k33: Use HT16K33_FB_SIZE in ht16k33_initialize()
auxdisplay: ht16k33: Fix frame buffer device blanking
auxdisplay: ht16k33: Connect backlight to fbdev
auxdisplay: linedisp: Add support for changing scroll rate
auxdisplay: linedisp: Use kmemdup_nul() helper
...
|
||
|
Linus Torvalds
|
2acda7549e |
\n
-----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAmGFN6IACgkQnJ2qBz9k QNkfYwgA1w5x/CsN2IMZdx6FTuZFgbOvQpBMTry8iuOPKK3UyIkZaUirTVLKR0cm k3QbBR9/vTfQTNg5weuFJcbPZZaCXKEvlPGvDh+pumMbfTkMwL3FADweNBoZ3PzO EiRrV45AbRgSMOzsfURzCz1T53Gd8fYM3pXxmNXG+bnE7+Ea+heKgor8/jFc4U3w kAKZTfyCiheo7KxVhFGnkGI3ZhIbnbZne4seY/CE4qtv7/bmBE7bhGpmv8LT5FUn h/JBDLjFU0fzJpplXE6n/VHXeGaUwb8adnYpzojWQ0lLYFrMIZFQ0KkDK6PNwmJF MKWGqRxDkf54oeWuEAJ9t4/OorqM9A== =ltE7 -----END PGP SIGNATURE----- Merge tag 'fsnotify_for_v5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull fsnotify updates from Jan Kara: "Support for reporting filesystem errors through fanotify so that system health monitoring daemons can watch for these and act instead of scraping system logs" * tag 'fsnotify_for_v5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: (34 commits) samples: remove duplicate include in fs-monitor.c samples: Fix warning in fsnotify sample docs: Fix formatting of literal sections in fanotify docs samples: Make fs-monitor depend on libc and headers docs: Document the FAN_FS_ERROR event samples: Add fs error monitoring example ext4: Send notifications on error fanotify: Allow users to request FAN_FS_ERROR events fanotify: Emit generic error info for error event fanotify: Report fid info for file related file system errors fanotify: WARN_ON against too large file handles fanotify: Add helpers to decide whether to report FID/DFID fanotify: Wrap object_fh inline space in a creator macro fanotify: Support merging of error events fanotify: Support enqueueing of error events fanotify: Pre-allocate pool of error events fanotify: Reserve UAPI bits for FAN_FS_ERROR fsnotify: Support FS_ERROR event type fanotify: Require fid_mode for any non-fd event fanotify: Encode empty file handle when no inode is provided ... |
||
|
Linus Torvalds
|
0c5c62ddf8 |
pci-v5.16-changes
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Merge tag 'pci-v5.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Conserve IRQs by setting up portdrv IRQs only when there are users
(Jan Kiszka)
- Rework and simplify _OSC negotiation for control of PCIe features
(Joerg Roedel)
- Remove struct pci_dev.driver pointer since it's redundant with the
struct device.driver pointer (Uwe Kleine-König)
Resource management:
- Coalesce contiguous host bridge apertures from _CRS to accommodate
BARs that cover more than one aperture (Kai-Heng Feng)
Sysfs:
- Check CAP_SYS_ADMIN before parsing user input (Krzysztof
Wilczyński)
- Return -EINVAL consistently from "store" functions (Krzysztof
Wilczyński)
- Use sysfs_emit() in endpoint "show" functions to avoid buffer
overruns (Kunihiko Hayashi)
PCIe native device hotplug:
- Ignore Link Down/Up caused by resets during error recovery so
endpoint drivers can remain bound to the device (Lukas Wunner)
Virtualization:
- Avoid bus resets on Atheros QCA6174, where they hang the device
(Ingmar Klein)
- Work around Pericom PI7C9X2G switch packet drop erratum by using
store and forward mode instead of cut-through (Nathan Rossi)
- Avoid trying to enable AtomicOps on VFs; the PF setting applies to
all VFs (Selvin Xavier)
MSI:
- Document that /sys/bus/pci/devices/.../irq contains the legacy INTx
interrupt or the IRQ of the first MSI (not MSI-X) vector (Barry
Song)
VPD:
- Add pci_read_vpd_any() and pci_write_vpd_any() to access anywhere
in the possible VPD space; use these to simplify the cxgb3 driver
(Heiner Kallweit)
Peer-to-peer DMA:
- Add (not subtract) the bus offset when calculating DMA address
(Wang Lu)
ASPM:
- Re-enable LTR at Downstream Ports so they don't report Unsupported
Requests when reset or hot-added devices send LTR messages
(Mingchuang Qiao)
Apple PCIe controller driver:
- Add driver for Apple M1 PCIe controller (Alyssa Rosenzweig, Marc
Zyngier)
Cadence PCIe controller driver:
- Return success when probe succeeds instead of falling into error
path (Li Chen)
HiSilicon Kirin PCIe controller driver:
- Reorganize PHY logic and add support for external PHY drivers
(Mauro Carvalho Chehab)
- Support PERST# GPIOs for HiKey970 external PEX 8606 bridge (Mauro
Carvalho Chehab)
- Add Kirin 970 support (Mauro Carvalho Chehab)
- Make driver removable (Mauro Carvalho Chehab)
Intel VMD host bridge driver:
- If IOMMU supports interrupt remapping, leave VMD MSI-X remapping
enabled (Adrian Huang)
- Number each controller so we can tell them apart in
/proc/interrupts (Chunguang Xu)
- Avoid building on UML because VMD depends on x86 bare metal APIs
(Johannes Berg)
Marvell Aardvark PCIe controller driver:
- Define macros for PCI_EXP_DEVCTL_PAYLOAD_* (Pali Rohár)
- Set Max Payload Size to 512 bytes per Marvell spec (Pali Rohár)
- Downgrade PIO Response Status messages to debug level (Marek Behún)
- Preserve CRS SV (Config Request Retry Software Visibility) bit in
emulated Root Control register (Pali Rohár)
- Fix issue in configuring reference clock (Pali Rohár)
- Don't clear status bits for masked interrupts (Pali Rohár)
- Don't mask unused interrupts (Pali Rohár)
- Avoid code repetition in advk_pcie_rd_conf() (Marek Behún)
- Retry config accesses on CRS response (Pali Rohár)
- Simplify emulated Root Capabilities initialization (Pali Rohár)
- Fix several link training issues (Pali Rohár)
- Fix link-up checking via LTSSM (Pali Rohár)
- Fix reporting of Data Link Layer Link Active (Pali Rohár)
- Fix emulation of W1C bits (Marek Behún)
- Fix MSI domain .alloc() method to return zero on success (Marek
Behún)
- Read entire 16-bit MSI vector in MSI handler, not just low 8 bits
(Marek Behún)
- Clear Root Port I/O Space, Memory Space, and Bus Master Enable bits
at startup; PCI core will set those as necessary (Pali Rohár)
- When operating as a Root Port, set class code to "PCI Bridge"
instead of the default "Mass Storage Controller" (Pali Rohár)
- Add emulation for PCI_BRIDGE_CTL_BUS_RESET since aardvark doesn't
implement this per spec (Pali Rohár)
- Add emulation of option ROM BAR since aardvark doesn't implement
this per spec (Pali Rohár)
MediaTek MT7621 PCIe controller driver:
- Add MediaTek MT7621 PCIe host controller driver and DT binding
(Sergio Paracuellos)
Qualcomm PCIe controller driver:
- Add SC8180x compatible string (Bjorn Andersson)
- Add endpoint controller driver and DT binding (Manivannan
Sadhasivam)
- Restructure to use of_device_get_match_data() (Prasad Malisetty)
- Add SC7280-specific pcie_1_pipe_clk_src handling (Prasad Malisetty)
Renesas R-Car PCIe controller driver:
- Remove unnecessary includes (Geert Uytterhoeven)
Rockchip DesignWare PCIe controller driver:
- Add DT binding (Simon Xue)
Socionext UniPhier Pro5 controller driver:
- Serialize INTx masking/unmasking (Kunihiko Hayashi)
Synopsys DesignWare PCIe controller driver:
- Run dwc .host_init() method before registering MSI interrupt
handler so we can deal with pending interrupts left by bootloader
(Bjorn Andersson)
- Clean up Kconfig dependencies (Andy Shevchenko)
- Export symbols to allow more modular drivers (Luca Ceresoli)
TI DRA7xx PCIe controller driver:
- Allow host and endpoint drivers to be modules (Luca Ceresoli)
- Enable external clock if present (Luca Ceresoli)
TI J721E PCIe driver:
- Disable PHY when probe fails after initializing it (Christophe
JAILLET)
MicroSemi Switchtec management driver:
- Return error to application when command execution fails because an
out-of-band reset has cleared the device BARs, Memory Space Enable,
etc (Kelvin Cao)
- Fix MRPC error status handling issue (Kelvin Cao)
- Mask out other bits when reading of management VEP instance ID
(Kelvin Cao)
- Return EOPNOTSUPP instead of ENOTSUPP from sysfs show functions
(Kelvin Cao)
- Add check of event support (Logan Gunthorpe)
Miscellaneous:
- Remove unused pci_pool wrappers, which have been replaced by
dma_pool (Cai Huoqing)
- Use 'unsigned int' instead of bare 'unsigned' (Krzysztof
Wilczyński)
- Use kstrtobool() directly, sans strtobool() wrapper (Krzysztof
Wilczyński)
- Fix some sscanf(), sprintf() format mismatches (Krzysztof
Wilczyński)
- Update PCI subsystem information in MAINTAINERS (Krzysztof
Wilczyński)
- Correct some misspellings (Krzysztof Wilczyński)"
* tag 'pci-v5.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (137 commits)
PCI: Add ACS quirk for Pericom PI7C9X2G switches
PCI: apple: Configure RID to SID mapper on device addition
iommu/dart: Exclude MSI doorbell from PCIe device IOVA range
PCI: apple: Implement MSI support
PCI: apple: Add INTx and per-port interrupt support
PCI: kirin: Allow removing the driver
PCI: kirin: De-init the dwc driver
PCI: kirin: Disable clkreq during poweroff sequence
PCI: kirin: Move the power-off code to a common routine
PCI: kirin: Add power_off support for Kirin 960 PHY
PCI: kirin: Allow building it as a module
PCI: kirin: Add MODULE_* macros
PCI: kirin: Add Kirin 970 compatible
PCI: kirin: Support PERST# GPIOs for HiKey970 external PEX 8606 bridge
PCI: apple: Set up reference clocks when probing
PCI: apple: Add initial hardware bring-up
PCI: of: Allow matching of an interrupt-map local to a PCI device
of/irq: Allow matching of an interrupt-map local to an interrupt controller
irqdomain: Make of_phandle_args_to_fwspec() generally available
PCI: Do not enable AtomicOps on VFs
...
|
||
Michael S. Tsirkin
|
7d0003da62 |
virtio_gpio: drop packed attribute
Declaring the struct packed here is mostly harmless, but gives a bad example for people to copy. As the struct is packed and aligned manually, let's just drop the attribute. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl> |
||
Viresh Kumar
|
eff5cdd745 |
gpio: virtio: Add IRQ support
This patch adds IRQ support for the virtio GPIO driver. Note that this uses the irq_bus_lock/unlock() callbacks, since those operations over virtio may sleep. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl> |
||
|
Linus Torvalds
|
5c904c66ed |
Char/Misc driver update for 5.16-rc1
Here is the big set of char and misc and other tiny driver subsystem
updates for 5.16-rc1.
Loads of things in here, all of which have been in linux-next for a
while with no reported problems (except for one called out below.)
Included are:
- habanana labs driver updates, including dma_buf usage,
reviewed and acked by the dma_buf maintainers
- iio driver update (going through this tree not staging as they
really do not belong going through that tree anymore)
- counter driver updates
- hwmon driver updates that the counter drivers needed, acked by
the hwmon maintainer
- xillybus driver updates
- binder driver updates
- extcon driver updates
- dma_buf module namespaces added (will cause a build error in
arm64 for allmodconfig, but that change is on its way through
the drm tree)
- lkdtm driver updates
- pvpanic driver updates
- phy driver updates
- virt acrn and nitr_enclaves driver updates
- smaller char and misc driver updates
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the big set of char and misc and other tiny driver subsystem
updates for 5.16-rc1.
Loads of things in here, all of which have been in linux-next for a
while with no reported problems (except for one called out below.)
Included are:
- habanana labs driver updates, including dma_buf usage, reviewed and
acked by the dma_buf maintainers
- iio driver update (going through this tree not staging as they
really do not belong going through that tree anymore)
- counter driver updates
- hwmon driver updates that the counter drivers needed, acked by the
hwmon maintainer
- xillybus driver updates
- binder driver updates
- extcon driver updates
- dma_buf module namespaces added (will cause a build error in arm64
for allmodconfig, but that change is on its way through the drm
tree)
- lkdtm driver updates
- pvpanic driver updates
- phy driver updates
- virt acrn and nitr_enclaves driver updates
- smaller char and misc driver updates"
* tag 'char-misc-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (386 commits)
comedi: dt9812: fix DMA buffers on stack
comedi: ni_usb6501: fix NULL-deref in command paths
arm64: errata: Enable TRBE workaround for write to out-of-range address
arm64: errata: Enable workaround for TRBE overwrite in FILL mode
coresight: trbe: Work around write to out of range
coresight: trbe: Make sure we have enough space
coresight: trbe: Add a helper to determine the minimum buffer size
coresight: trbe: Workaround TRBE errata overwrite in FILL mode
coresight: trbe: Add infrastructure for Errata handling
coresight: trbe: Allow driver to choose a different alignment
coresight: trbe: Decouple buffer base from the hardware base
coresight: trbe: Add a helper to pad a given buffer area
coresight: trbe: Add a helper to calculate the trace generated
coresight: trbe: Defer the probe on offline CPUs
coresight: trbe: Fix incorrect access of the sink specific data
coresight: etm4x: Add ETM PID for Kryo-5XX
coresight: trbe: Prohibit trace before disabling TRBE
coresight: trbe: End the AUX handle on truncation
coresight: trbe: Do not truncate buffer on IRQ
coresight: trbe: Fix handling of spurious interrupts
...
|
||
|
Linus Torvalds
|
43e1b12927 |
vhost,virtio,vhost: fixes,features
Hardening work by Jason vdpa driver for Alibaba ENI Performance tweaks for virtio blk virtio rng rework using an internal buffer mac/mtu programming for mlx5 vdpa Misc fixes, cleanups Signed-off-by: Michael S. Tsirkin <mst@redhat.com> -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAmF/su8PHG1zdEByZWRo YXQuY29tAAoJECgfDbjSjVRpo+sIAJjBTvbET+d0KuIMt8YBGsU+NWgHaJxW06hm GHZzinueZYWaS20MPMYMPfcHUgigWj0kk7F0gMljG5rtDFzR85JkOi7+e5V6RVJW 8SQc7JjA1Krde6EiPJdlv3mVkLz/5VbrGUgjAW9di/O04Xc/jAc9kmJ41wTYr0mL E5IsUi9QBmgHtKQ+2ofb9QEWuebJclGK+NVd3Kp08BtAQOrdn5UrIzY30/sjkZwE ul2ll6v/k7T3dCQbHD/wMgfFycPvoZVfxaVj+FWQnwdWkqZwzMRmpKPRes4KJfww Lfx1qox10mJzH7XJCs7xmOM8f7HgNNWi0gD5FxNlfkiz1AwHYOk= =DTXY -----END PGP SIGNATURE----- Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost Pull virtio updates from Michael Tsirkin: "vhost and virtio fixes and features: - Hardening work by Jason - vdpa driver for Alibaba ENI - Performance tweaks for virtio blk - virtio rng rework using an internal buffer - mac/mtu programming for mlx5 vdpa - Misc fixes, cleanups" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (45 commits) vdpa/mlx5: Forward only packets with allowed MAC address vdpa/mlx5: Support configuration of MAC vdpa/mlx5: Fix clearing of VIRTIO_NET_F_MAC feature bit vdpa_sim_net: Enable user to set mac address and mtu vdpa: Enable user to set mac and mtu of vdpa device vdpa: Use kernel coding style for structure comments vdpa: Introduce query of device config layout vdpa: Introduce and use vdpa device get, set config helpers virtio-scsi: don't let virtio core to validate used buffer length virtio-blk: don't let virtio core to validate used length virtio-net: don't let virtio core to validate used length virtio_ring: validate used buffer length virtio_blk: correct types for status handling virtio_blk: allow 0 as num_request_queues i2c: virtio: Add support for zero-length requests virtio-blk: fixup coccinelle warnings virtio_ring: fix typos in vring_desc_extra virtio-pci: harden INTX interrupts virtio_pci: harden MSI-X interrupts virtio_config: introduce a new .enable_cbs method ... |
||
Eric W. Biederman
|
00b06da29c |
signal: Add SA_IMMUTABLE to ensure forced siganls do not get changed
As Andy pointed out that there are races between
force_sig_info_to_task and sigaction[1] when force_sig_info_task. As
Kees discovered[2] ptrace is also able to change these signals.
In the case of seeccomp killing a process with a signal it is a
security violation to allow the signal to be caught or manipulated.
Solve this problem by introducing a new flag SA_IMMUTABLE that
prevents sigaction and ptrace from modifying these forced signals.
This flag is carefully made kernel internal so that no new ABI is
introduced.
Longer term I think this can be solved by guaranteeing short circuit
delivery of signals in this case. Unfortunately reliable and
guaranteed short circuit delivery of these signals is still a ways off
from being implemented, tested, and merged. So I have implemented a much
simpler alternative for now.
[1] https://lkml.kernel.org/r/b5d52d25-7bde-4030-a7b1-7c6f8ab90660@www.fastmail.com
[2] https://lkml.kernel.org/r/202110281136.5CE65399A7@keescook
Cc: stable@vger.kernel.org
Fixes:
|
||
|
Linus Torvalds
|
25edbc383b |
RDMA v5.16 merge window pull request
A typical collection of patches this cycle, mostly fixing with a few new
features:
- Fixes from static tools. clang warnings, dead code, unused variable,
coccinelle sweeps, etc
- Driver bug fixes and minor improvements in rxe, bnxt_re, hfi1, mlx5,
irdma, qedr
- rtrs ULP bug fixes an improvments
- Additional counters for bnxt_re
- Support verbs CQ notifications in EFA
- Continued reworking and fixing of rxe
- netlink control to enable/disable optional device counters
- rxe now can use AH objects for its UD path, fixing various bugs in the
process
- Add DMABUF support to EFA
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"A typical collection of patches this cycle, mostly fixing with a few
new features:
- Fixes from static tools. clang warnings, dead code, unused
variable, coccinelle sweeps, etc
- Driver bug fixes and minor improvements in rxe, bnxt_re, hfi1,
mlx5, irdma, qedr
- rtrs ULP bug fixes an improvments
- Additional counters for bnxt_re
- Support verbs CQ notifications in EFA
- Continued reworking and fixing of rxe
- netlink control to enable/disable optional device counters
- rxe now can use AH objects for its UD path, fixing various bugs in
the process
- Add DMABUF support to EFA"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (103 commits)
RDMA/core: Require the driver to set the IOVA correctly during rereg_mr
RDMA/bnxt_re: Remove unsupported bnxt_re_modify_ah callback
RDMA/irdma: optimize rx path by removing unnecessary copy
RDMA/qed: Use helper function to set GUIDs
RDMA/hns: Use the core code to manage the fixed mmap entries
IB/opa_vnic: Rebranding of OPA VNIC driver to Cornelis Networks
IB/qib: Rebranding of qib driver to Cornelis Networks
IB/hfi1: Rebranding of hfi1 driver to Cornelis Networks
RDMA/bnxt_re: Use helper function to set GUIDs
RDMA/bnxt_re: Fix kernel panic when trying to access bnxt_re_stat_descs
RDMA/qedr: Fix NULL deref for query_qp on the GSI QP
RDMA/hns: Modify the value of MAX_LP_MSG_LEN to meet hardware compatibility
RDMA/hns: Fix initial arm_st of CQ
RDMA/rxe: Make rxe_type_info static const
RDMA/rxe: Use 'bitmap_zalloc()' when applicable
RDMA/rxe: Save a few bytes from struct rxe_pool
RDMA/irdma: Remove the unused variable local_qp
RDMA/core: Fix missed initialization of rdma_hw_stats::lock
RDMA/efa: Add support for dmabuf memory regions
RDMA/umem: Allow pinned dmabuf umem usage
...
|
||
|
Linus Torvalds
|
ff0700f036 |
sound updates for 5.16-rc1
Lots of code development have been see in ASoC side as usual, while
the continued development on memalloc helper and USB-audio low-
latency support are found in the rest. Note that a few changes in the
unusual places like arch/sh are included, which are a part of ASoC DAI
format cleanups.
ALSA core:
- Continued memallloc helper updates and cleanups, now supporting
non-coherent and non-contiguous pages
- Fixes for races in mixer OSS layer
ASoC:
- A new version of the audio graph card which supports a wider range
of systems
- Several conversions to YAML DT bindings
- Continuing cleanups to the SOF and Intel code
- Move of the Cirrus DSP framework into drivers/firmware to allow for
future use by non-audio DSPs
- An overhaul of the cs42l42 driver, correcting many problems
- DAI format terminology conversions over many drivers for cleanups
- Support for AMD Vangogh and Yelow Cap, Cirrus CS35L41, Maxim
MAX98520 and MAX98360A, Mediatek MT8195, Nuvoton NAU8821, nVidia
Tegra210, NXP i.MX8ULP, Qualcomm AudioReach, Realtek ALC5682I-VS,
RT5682S, and RT9120 and Rockchip RV1126 and RK3568
USB-audio:
- Continued improvements on low-latency playback
- Quirks for Pioneer devices, Line6 HX-Stomp XL, Audient iD14
HD-audio:
- Reduce excessive udelay() calls on Intel platforms; this should
reduce the CPU load with PulseAudio
- Quirks for HP and Clevo laptops
FireWire:
- Support for meter information on MOTU
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Merge tag 'sound-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"Lots of code development have been see in ASoC side as usual, while
the continued development on memalloc helper and USB-audio low-
latency support are found in the rest.
Note that a few changes in the unusual places like arch/sh are
included, which are a part of ASoC DAI format cleanups.
ALSA core:
- Continued memalloc helper updates and cleanups, now supporting
non-coherent and non-contiguous pages
- Fixes for races in mixer OSS layer
ASoC:
- A new version of the audio graph card which supports a wider range
of systems
- Several conversions to YAML DT bindings
- Continuing cleanups to the SOF and Intel code
- Move of the Cirrus DSP framework into drivers/firmware to allow for
future use by non-audio DSPs
- An overhaul of the cs42l42 driver, correcting many problems
- DAI format terminology conversions over many drivers for cleanups
- Support for AMD Vangogh and Yelow Cap, Cirrus CS35L41, Maxim
MAX98520 and MAX98360A, Mediatek MT8195, Nuvoton NAU8821, nVidia
Tegra210, NXP i.MX8ULP, Qualcomm AudioReach, Realtek ALC5682I-VS,
RT5682S, and RT9120 and Rockchip RV1126 and RK3568
USB-audio:
- Continued improvements on low-latency playback
- Quirks for Pioneer devices, Line6 HX-Stomp XL, Audient iD14
HD-audio:
- Reduce excessive udelay() calls on Intel platforms; this should
reduce the CPU load with PulseAudio
- Quirks for HP and Clevo laptops
FireWire:
- Support for meter information on MOTU"
* tag 'sound-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (513 commits)
ALSA: usb-audio: Add quirk for Audient iD14
ALSA: hda/realtek: Add quirk for Clevo PC70HS
ALSA: usb-audio: Line6 HX-Stomp XL USB_ID for 48k-fixed quirk
ALSA: usb-audio: Add registration quirk for JBL Quantum 400
ASoC: rsnd: Fix an error handling path in 'rsnd_node_count()'
ASoC: tlv320aic3x: Make aic3x_remove() return void
ASoC: Intel: soc-acpi: use const for all uses of snd_soc_acpi_codecs
ASoC: Intel: soc-acpi-cht: shrink tables using compatible IDs
ASoC: Intel: soc-acpi-byt: shrink tables using compatible IDs
ASoC: Intel: sof_rt5682: use comp_ids to enumerate rt5682s
ASoC: Intel: sof_rt5682: detect codec variant in probe function
ASoC: soc-acpi: add comp_ids field for machine driver matching
ASoC: mediatek: mt8195: add mt8195-mt6359-rt1011-rt5682 bindings document
ASoC: mediatek: mt8195: add machine driver with mt6359, rt1011 and rt5682
ASoC: Stop dummy from overriding hwparams
ASoC: topology: Change topology device to card device
ASoC: topology: Use correct device for prints
ASoC: topology: Check for dapm widget completeness
ASoC: topology: Add header payload_size verification
ASoC: core: Remove invalid snd_soc_component_set_jack call
...
|
||
|
Jakub Kicinski
|
1aabe578dd |
ethtool: fix ethtool msg len calculation for pause stats
ETHTOOL_A_PAUSE_STAT_MAX is the MAX attribute id,
so we need to subtract non-stats and add one to
get a count (IOW -2+1 == -1).
Otherwise we'll see:
ethnl cmd 21: calculated reply length 40, but consumed 52
Fixes:
|
||
|
Linus Torvalds
|
56d3375448 |
drm for 5.16-rc1
core: - improve dma_fence, lease and resv documentation - shmem-helpers: allocate WC pages on x86, use vmf_insert_pin - sched fixes/improvements - allow empty drm leases - add dma resv iterator - add more DP 2.0 headers - DP MST helper improvements for DP2.0 dma-buf: - avoid warnings, remove fence trace macros bridge: - new helper to get rid of panels - probe improvements for it66121 - enable DSI EOTP for anx7625 fbdev: - efifb: release runtime PM on destroy ttm: - kerneldoc switch - helper to clear all DMA mappings - pool shrinker optimizaton - remove ttm_tt_destroy_common - update ttm_move_memcpy for async use panel: - add new panel-edp driver amdgpu: - Initial DP 2.0 support - Initial USB4 DP tunnelling support - Aldebaran MCE support - Modifier support for DCC image stores for GFX 10.3 - Display rework for better FP code handling - Yellow Carp/Cyan Skillfish updates - Cyan Skillfish display support - convert vega/navi to IP discovery asic enumeration - validate IP discovery table - RAS improvements - Lots of fixes i915: - DG1 PCI IDs + LMEM discovery/placement - DG1 GuC submission by default - ADL-S PCI IDs updated + enabled by default - ADL-P (XE_LPD) fixed and updates - DG2 display fixes - PXP protected object support for Gen12 integrated - expose multi-LRC submission interface for GuC - export logical engine instance to user - Disable engine bonding on Gen12+ - PSR cleanup - PSR2 selective fetch by default - DP 2.0 prep work - VESA vendor block + MSO use of it - FBC refactor - try again to fix fast-narrow vs slow-wide eDP training - use THP when IOMMU enabled - LMEM backup/restore for suspend/resume - locking simplification - GuC major reworking - async flip VT-D workaround changes - DP link training improvements - misc display refactorings bochs: - new PCI ID rcar-du: - Non-contiguious buffer import support for rcar-du - r8a779a0 support prep omapdrm: - COMPILE_TEST fixes sti: - COMPILE_TEST fixes msm: - fence ordering improvements - eDP support in DP sub-driver - dpu irq handling cleanup - CRC support for making igt happy - NO_CONNECTOR bridge support - dsi: 14nm phy support for msm8953 - mdp5: msm8x53, sdm450, sdm632 support stm: - layer alpha + zpo support v3d: - fix Vulkan CTS failure - support multiple sync objects gud: - add R8/RGB332/RGB888 pixel formats vc4: - convert to new bridge helpers vgem: - use shmem helpers virtio: - support mapping exported vram zte: - remove obsolete driver rockchip: - use bridge attach no connector for LVDS/RGB -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmGByPYACgkQDHTzWXnE hr6fxA//cXUvTHlEtF7UJDBRAYv+9lXH39NbGYU4aLJuBNlZztCuUi5JOSyDFDH1 N9VI5biVseev2PEnCzJUubWxTqbUO7FBQTw0TyvZ4Eqn+UZMuFeo0dvdKZRAkvjV VHSUc0fm0+WSYanKUK7XK0fwG8aE6JVyYngzgKPSjifhszTdiiRsbU21iTinFhkS rgh3HEVELp+LqfoG4qzAYqFUjYqUjvCjd/hX/UkzCII8ZXKr38/4127e95443WOk +jes0gWGJe9TvSDrqo9TMx4qukcOniINFUvnzoD2RhOS+Jzr/i5rBh51Xy92g3NO Q7hy6byZdk/ZO/MXCDQ2giUOkBiqn5fQjlRGQp4iAZYw9pb3HU+/xrTq0BWVWd8o /vmzZYEKKU/sCGpxVDMZxsHV3mXIuVBvuZq6bjmSGcybgOBCiDx5F/Rum4nY2yHp lr3cuc0HP3m3f4b/HVvACO4tGd1nDDpVcon7CuhBB7HB7t6Zl9u18qc/qFw0tCTh 3sgAhno6XFXtPFcSX2KAeeg0mhKDKKrsOnq5y3bDRr05Z0jLocJk95aXEKs6em4j gbyHwNaX3CHtiCnFn2/5169+n1K7zqHBtVSGmQlmFDv55rcdx7L3Spk7tCahQeSQ ur24r+sEggm8d5Wjl+MYq6wW3oP31s04JFaeV6oCkaSp1wS+alg= =jdhH -----END PGP SIGNATURE----- Merge tag 'drm-next-2021-11-03' of git://anongit.freedesktop.org/drm/drm Pull drm updates from Dave Airlie: "Summary below. i915 starts to add support for DG2 GPUs, enables DG1 and ADL-S support by default, lots of work to enable DisplayPort 2.0 across drivers. Lots of documentation updates and fixes across the board. core: - improve dma_fence, lease and resv documentation - shmem-helpers: allocate WC pages on x86, use vmf_insert_pin - sched fixes/improvements - allow empty drm leases - add dma resv iterator - add more DP 2.0 headers - DP MST helper improvements for DP2.0 dma-buf: - avoid warnings, remove fence trace macros bridge: - new helper to get rid of panels - probe improvements for it66121 - enable DSI EOTP for anx7625 fbdev: - efifb: release runtime PM on destroy ttm: - kerneldoc switch - helper to clear all DMA mappings - pool shrinker optimizaton - remove ttm_tt_destroy_common - update ttm_move_memcpy for async use panel: - add new panel-edp driver amdgpu: - Initial DP 2.0 support - Initial USB4 DP tunnelling support - Aldebaran MCE support - Modifier support for DCC image stores for GFX 10.3 - Display rework for better FP code handling - Yellow Carp/Cyan Skillfish updates - Cyan Skillfish display support - convert vega/navi to IP discovery asic enumeration - validate IP discovery table - RAS improvements - Lots of fixes i915: - DG1 PCI IDs + LMEM discovery/placement - DG1 GuC submission by default - ADL-S PCI IDs updated + enabled by default - ADL-P (XE_LPD) fixed and updates - DG2 display fixes - PXP protected object support for Gen12 integrated - expose multi-LRC submission interface for GuC - export logical engine instance to user - Disable engine bonding on Gen12+ - PSR cleanup - PSR2 selective fetch by default - DP 2.0 prep work - VESA vendor block + MSO use of it - FBC refactor - try again to fix fast-narrow vs slow-wide eDP training - use THP when IOMMU enabled - LMEM backup/restore for suspend/resume - locking simplification - GuC major reworking - async flip VT-D workaround changes - DP link training improvements - misc display refactorings bochs: - new PCI ID rcar-du: - Non-contiguious buffer import support for rcar-du - r8a779a0 support prep omapdrm: - COMPILE_TEST fixes sti: - COMPILE_TEST fixes msm: - fence ordering improvements - eDP support in DP sub-driver - dpu irq handling cleanup - CRC support for making igt happy - NO_CONNECTOR bridge support - dsi: 14nm phy support for msm8953 - mdp5: msm8x53, sdm450, sdm632 support stm: - layer alpha + zpo support v3d: - fix Vulkan CTS failure - support multiple sync objects gud: - add R8/RGB332/RGB888 pixel formats vc4: - convert to new bridge helpers vgem: - use shmem helpers virtio: - support mapping exported vram zte: - remove obsolete driver rockchip: - use bridge attach no connector for LVDS/RGB" * tag 'drm-next-2021-11-03' of git://anongit.freedesktop.org/drm/drm: (1259 commits) drm/amdgpu/gmc6: fix DMA mask from 44 to 40 bits drm/amd/display: MST support for DPIA drm/amdgpu: Fix even more out of bound writes from debugfs drm/amdgpu/discovery: add SDMA IP instance info for soc15 parts drm/amdgpu/discovery: add UVD/VCN IP instance info for soc15 parts drm/amdgpu/UAPI: rearrange header to better align related items drm/amd/display: Enable dpia in dmub only for DCN31 B0 drm/amd/display: Fix USB4 hot plug crash issue drm/amd/display: Fix deadlock when falling back to v2 from v3 drm/amd/display: Fallback to clocks which meet requested voltage on DCN31 drm/amd/display: move FPU associated DCN301 code to DML folder drm/amd/display: fix link training regression for 1 or 2 lane drm/amd/display: add two lane settings training options drm/amd/display: decouple hw_lane_settings from dpcd_lane_settings drm/amd/display: implement decide lane settings drm/amd/display: adopt DP2.0 LT SCR revision 8 drm/amd/display: FEC configuration for dpia links in MST mode drm/amd/display: FEC configuration for dpia links drm/amd/display: Add workaround flag for EDID read on certain docks drm/amd/display: Set phy_mux_sel bit in dmub scratch register ... |
||
|
Linus Torvalds
|
d7e0a795bf |
ARM:
* More progress on the protected VM front, now with the full
fixed feature set as well as the limitation of some hypercalls
after initialisation.
* Cleanup of the RAZ/WI sysreg handling, which was pointlessly
complicated
* Fixes for the vgic placement in the IPA space, together with a
bunch of selftests
* More memcg accounting of the memory allocated on behalf of a guest
* Timer and vgic selftests
* Workarounds for the Apple M1 broken vgic implementation
* KConfig cleanups
* New kvmarm.mode=none option, for those who really dislike us
RISC-V:
* New KVM port.
x86:
* New API to control TSC offset from userspace
* TSC scaling for nested hypervisors on SVM
* Switch masterclock protection from raw_spin_lock to seqcount
* Clean up function prototypes in the page fault code and avoid
repeated memslot lookups
* Convey the exit reason to userspace on emulation failure
* Configure time between NX page recovery iterations
* Expose Predictive Store Forwarding Disable CPUID leaf
* Allocate page tracking data structures lazily (if the i915
KVM-GT functionality is not compiled in)
* Cleanups, fixes and optimizations for the shadow MMU code
s390:
* SIGP Fixes
* initial preparations for lazy destroy of secure VMs
* storage key improvements/fixes
* Log the guest CPNC
Starting from this release, KVM-PPC patches will come from
Michael Ellerman's PPC tree.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"ARM:
- More progress on the protected VM front, now with the full fixed
feature set as well as the limitation of some hypercalls after
initialisation.
- Cleanup of the RAZ/WI sysreg handling, which was pointlessly
complicated
- Fixes for the vgic placement in the IPA space, together with a
bunch of selftests
- More memcg accounting of the memory allocated on behalf of a guest
- Timer and vgic selftests
- Workarounds for the Apple M1 broken vgic implementation
- KConfig cleanups
- New kvmarm.mode=none option, for those who really dislike us
RISC-V:
- New KVM port.
x86:
- New API to control TSC offset from userspace
- TSC scaling for nested hypervisors on SVM
- Switch masterclock protection from raw_spin_lock to seqcount
- Clean up function prototypes in the page fault code and avoid
repeated memslot lookups
- Convey the exit reason to userspace on emulation failure
- Configure time between NX page recovery iterations
- Expose Predictive Store Forwarding Disable CPUID leaf
- Allocate page tracking data structures lazily (if the i915 KVM-GT
functionality is not compiled in)
- Cleanups, fixes and optimizations for the shadow MMU code
s390:
- SIGP Fixes
- initial preparations for lazy destroy of secure VMs
- storage key improvements/fixes
- Log the guest CPNC
Starting from this release, KVM-PPC patches will come from Michael
Ellerman's PPC tree"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (227 commits)
RISC-V: KVM: fix boolreturn.cocci warnings
RISC-V: KVM: remove unneeded semicolon
RISC-V: KVM: Fix GPA passed to __kvm_riscv_hfence_gvma_xyz() functions
RISC-V: KVM: Factor-out FP virtualization into separate sources
KVM: s390: add debug statement for diag 318 CPNC data
KVM: s390: pv: properly handle page flags for protected guests
KVM: s390: Fix handle_sske page fault handling
KVM: x86: SGX must obey the KVM_INTERNAL_ERROR_EMULATION protocol
KVM: x86: On emulation failure, convey the exit reason, etc. to userspace
KVM: x86: Get exit_reason as part of kvm_x86_ops.get_exit_info
KVM: x86: Clarify the kvm_run.emulation_failure structure layout
KVM: s390: Add a routine for setting userspace CPU state
KVM: s390: Simplify SIGP Set Arch handling
KVM: s390: pv: avoid stalls when making pages secure
KVM: s390: pv: avoid stalls for kvm_s390_pv_init_vm
KVM: s390: pv: avoid double free of sida page
KVM: s390: pv: add macros for UVC CC values
s390/mm: optimize reset_guest_reference_bit()
s390/mm: optimize set_guest_storage_key()
s390/mm: no need for pte_alloc_map_lock() if we know the pmd is present
...
|
||
|
Linus Torvalds
|
fc02cb2b37 |
Core:
- Remove socket skb caches
- Add a SO_RESERVE_MEM socket op to forward allocate buffer space
and avoid memory accounting overhead on each message sent
- Introduce managed neighbor entries - added by control plane and
resolved by the kernel for use in acceleration paths (BPF / XDP
right now, HW offload users will benefit as well)
- Make neighbor eviction on link down controllable by userspace
to work around WiFi networks with bad roaming implementations
- vrf: Rework interaction with netfilter/conntrack
- fq_codel: implement L4S style ce_threshold_ect1 marking
- sch: Eliminate unnecessary RCU waits in mini_qdisc_pair_swap()
BPF:
- Add support for new btf kind BTF_KIND_TAG, arbitrary type tagging
as implemented in LLVM14
- Introduce bpf_get_branch_snapshot() to capture Last Branch Records
- Implement variadic trace_printk helper
- Add a new Bloomfilter map type
- Track <8-byte scalar spill and refill
- Access hw timestamp through BPF's __sk_buff
- Disallow unprivileged BPF by default
- Document BPF licensing
Netfilter:
- Introduce egress hook for looking at raw outgoing packets
- Allow matching on and modifying inner headers / payload data
- Add NFT_META_IFTYPE to match on the interface type either from
ingress or egress
Protocols:
- Multi-Path TCP:
- increase default max additional subflows to 2
- rework forward memory allocation
- add getsockopts: MPTCP_INFO, MPTCP_TCPINFO, MPTCP_SUBFLOW_ADDRS
- MCTP flow support allowing lower layer drivers to configure msg
muxing as needed
- Automatic Multicast Tunneling (AMT) driver based on RFC7450
- HSR support the redbox supervision frames (IEC-62439-3:2018)
- Support for the ip6ip6 encapsulation of IOAM
- Netlink interface for CAN-FD's Transmitter Delay Compensation
- Support SMC-Rv2 eliminating the current same-subnet restriction,
by exploiting the UDP encapsulation feature of RoCE adapters
- TLS: add SM4 GCM/CCM crypto support
- Bluetooth: initial support for link quality and audio/codec
offload
Driver APIs:
- Add a batched interface for RX buffer allocation in AF_XDP
buffer pool
- ethtool: Add ability to control transceiver modules' power mode
- phy: Introduce supported interfaces bitmap to express MAC
capabilities and simplify PHY code
- Drop rtnl_lock from DSA .port_fdb_{add,del} callbacks
New drivers:
- WiFi driver for Realtek 8852AE 802.11ax devices (rtw89)
- Ethernet driver for ASIX AX88796C SPI device (x88796c)
Drivers:
- Broadcom PHYs
- support 72165, 7712 16nm PHYs
- support IDDQ-SR for additional power savings
- PHY support for QCA8081, QCA9561 PHYs
- NXP DPAA2: support for IRQ coalescing
- NXP Ethernet (enetc): support for software TCP segmentation
- Renesas Ethernet (ravb) - support DMAC and EMAC blocks of
Gigabit-capable IP found on RZ/G2L SoC
- Intel 100G Ethernet
- support for eswitch offload of TC/OvS flow API, including
offload of GRE, VxLAN, Geneve tunneling
- support application device queues - ability to assign Rx and Tx
queues to application threads
- PTP and PPS (pulse-per-second) extensions
- Broadcom Ethernet (bnxt)
- devlink health reporting and device reload extensions
- Mellanox Ethernet (mlx5)
- offload macvlan interfaces
- support HW offload of TC rules involving OVS internal ports
- support HW-GRO and header/data split
- support application device queues
- Marvell OcteonTx2:
- add XDP support for PF
- add PTP support for VF
- Qualcomm Ethernet switch (qca8k): support for QCA8328
- Realtek Ethernet DSA switch (rtl8366rb)
- support bridge offload
- support STP, fast aging, disabling address learning
- support for Realtek RTL8365MB-VC, a 4+1 port 10M/100M/1GE switch
- Mellanox Ethernet/IB switch (mlxsw)
- multi-level qdisc hierarchy offload (e.g. RED, prio and shaping)
- offload root TBF qdisc as port shaper
- support multiple routing interface MAC address prefixes
- support for IP-in-IP with IPv6 underlay
- MediaTek WiFi (mt76)
- mt7921 - ASPM, 6GHz, SDIO and testmode support
- mt7915 - LED and TWT support
- Qualcomm WiFi (ath11k)
- include channel rx and tx time in survey dump statistics
- support for 80P80 and 160 MHz bandwidths
- support channel 2 in 6 GHz band
- spectral scan support for QCN9074
- support for rx decapsulation offload (data frames in 802.3
format)
- Qualcomm phone SoC WiFi (wcn36xx)
- enable Idle Mode Power Save (IMPS) to reduce power consumption
during idle
- Bluetooth driver support for MediaTek MT7922 and MT7921
- Enable support for AOSP Bluetooth extension in Qualcomm WCN399x
and Realtek 8822C/8852A
- Microsoft vNIC driver (mana)
- support hibernation and kexec
- Google vNIC driver (gve)
- support for jumbo frames
- implement Rx page reuse
Refactor:
- Make all writes to netdev->dev_addr go thru helpers, so that we
can add this address to the address rbtree and handle the updates
- Various TCP cleanups and optimizations including improvements
to CPU cache use
- Simplify the gnet_stats, Qdisc stats' handling and remove
qdisc->running sequence counter
- Driver changes and API updates to address devlink locking
deficiencies
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- Remove socket skb caches
- Add a SO_RESERVE_MEM socket op to forward allocate buffer space and
avoid memory accounting overhead on each message sent
- Introduce managed neighbor entries - added by control plane and
resolved by the kernel for use in acceleration paths (BPF / XDP
right now, HW offload users will benefit as well)
- Make neighbor eviction on link down controllable by userspace to
work around WiFi networks with bad roaming implementations
- vrf: Rework interaction with netfilter/conntrack
- fq_codel: implement L4S style ce_threshold_ect1 marking
- sch: Eliminate unnecessary RCU waits in mini_qdisc_pair_swap()
BPF:
- Add support for new btf kind BTF_KIND_TAG, arbitrary type tagging
as implemented in LLVM14
- Introduce bpf_get_branch_snapshot() to capture Last Branch Records
- Implement variadic trace_printk helper
- Add a new Bloomfilter map type
- Track <8-byte scalar spill and refill
- Access hw timestamp through BPF's __sk_buff
- Disallow unprivileged BPF by default
- Document BPF licensing
Netfilter:
- Introduce egress hook for looking at raw outgoing packets
- Allow matching on and modifying inner headers / payload data
- Add NFT_META_IFTYPE to match on the interface type either from
ingress or egress
Protocols:
- Multi-Path TCP:
- increase default max additional subflows to 2
- rework forward memory allocation
- add getsockopts: MPTCP_INFO, MPTCP_TCPINFO, MPTCP_SUBFLOW_ADDRS
- MCTP flow support allowing lower layer drivers to configure msg
muxing as needed
- Automatic Multicast Tunneling (AMT) driver based on RFC7450
- HSR support the redbox supervision frames (IEC-62439-3:2018)
- Support for the ip6ip6 encapsulation of IOAM
- Netlink interface for CAN-FD's Transmitter Delay Compensation
- Support SMC-Rv2 eliminating the current same-subnet restriction, by
exploiting the UDP encapsulation feature of RoCE adapters
- TLS: add SM4 GCM/CCM crypto support
- Bluetooth: initial support for link quality and audio/codec offload
Driver APIs:
- Add a batched interface for RX buffer allocation in AF_XDP buffer
pool
- ethtool: Add ability to control transceiver modules' power mode
- phy: Introduce supported interfaces bitmap to express MAC
capabilities and simplify PHY code
- Drop rtnl_lock from DSA .port_fdb_{add,del} callbacks
New drivers:
- WiFi driver for Realtek 8852AE 802.11ax devices (rtw89)
- Ethernet driver for ASIX AX88796C SPI device (x88796c)
Drivers:
- Broadcom PHYs
- support 72165, 7712 16nm PHYs
- support IDDQ-SR for additional power savings
- PHY support for QCA8081, QCA9561 PHYs
- NXP DPAA2: support for IRQ coalescing
- NXP Ethernet (enetc): support for software TCP segmentation
- Renesas Ethernet (ravb) - support DMAC and EMAC blocks of
Gigabit-capable IP found on RZ/G2L SoC
- Intel 100G Ethernet
- support for eswitch offload of TC/OvS flow API, including
offload of GRE, VxLAN, Geneve tunneling
- support application device queues - ability to assign Rx and Tx
queues to application threads
- PTP and PPS (pulse-per-second) extensions
- Broadcom Ethernet (bnxt)
- devlink health reporting and device reload extensions
- Mellanox Ethernet (mlx5)
- offload macvlan interfaces
- support HW offload of TC rules involving OVS internal ports
- support HW-GRO and header/data split
- support application device queues
- Marvell OcteonTx2:
- add XDP support for PF
- add PTP support for VF
- Qualcomm Ethernet switch (qca8k): support for QCA8328
- Realtek Ethernet DSA switch (rtl8366rb)
- support bridge offload
- support STP, fast aging, disabling address learning
- support for Realtek RTL8365MB-VC, a 4+1 port 10M/100M/1GE switch
- Mellanox Ethernet/IB switch (mlxsw)
- multi-level qdisc hierarchy offload (e.g. RED, prio and shaping)
- offload root TBF qdisc as port shaper
- support multiple routing interface MAC address prefixes
- support for IP-in-IP with IPv6 underlay
- MediaTek WiFi (mt76)
- mt7921 - ASPM, 6GHz, SDIO and testmode support
- mt7915 - LED and TWT support
- Qualcomm WiFi (ath11k)
- include channel rx and tx time in survey dump statistics
- support for 80P80 and 160 MHz bandwidths
- support channel 2 in 6 GHz band
- spectral scan support for QCN9074
- support for rx decapsulation offload (data frames in 802.3
format)
- Qualcomm phone SoC WiFi (wcn36xx)
- enable Idle Mode Power Save (IMPS) to reduce power consumption
during idle
- Bluetooth driver support for MediaTek MT7922 and MT7921
- Enable support for AOSP Bluetooth extension in Qualcomm WCN399x and
Realtek 8822C/8852A
- Microsoft vNIC driver (mana)
- support hibernation and kexec
- Google vNIC driver (gve)
- support for jumbo frames
- implement Rx page reuse
Refactor:
- Make all writes to netdev->dev_addr go thru helpers, so that we can
add this address to the address rbtree and handle the updates
- Various TCP cleanups and optimizations including improvements to
CPU cache use
- Simplify the gnet_stats, Qdisc stats' handling and remove
qdisc->running sequence counter
- Driver changes and API updates to address devlink locking
deficiencies"
* tag 'net-next-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2122 commits)
Revert "net: avoid double accounting for pure zerocopy skbs"
selftests: net: add arp_ndisc_evict_nocarrier
net: ndisc: introduce ndisc_evict_nocarrier sysctl parameter
net: arp: introduce arp_evict_nocarrier sysctl parameter
libbpf: Deprecate AF_XDP support
kbuild: Unify options for BTF generation for vmlinux and modules
selftests/bpf: Add a testcase for 64-bit bounds propagation issue.
bpf: Fix propagation of signed bounds from 64-bit min/max into 32-bit.
bpf: Fix propagation of bounds from 64-bit min/max into 32-bit and var_off.
net: vmxnet3: remove multiple false checks in vmxnet3_ethtool.c
net: avoid double accounting for pure zerocopy skbs
tcp: rename sk_wmem_free_skb
netdevsim: fix uninit value in nsim_drv_configure_vfs()
selftests/bpf: Fix also no-alu32 strobemeta selftest
bpf: Add missing map_delete_elem method to bloom filter map
selftests/bpf: Add bloom map success test for userspace calls
bpf: Add alignment padding for "map_extra" + consolidate holes
bpf: Bloom filter map naming fixups
selftests/bpf: Add test cases for struct_ops prog
bpf: Add dummy BPF STRUCT_OPS for test purpose
...
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Linus Torvalds
|
d2fac0afe8 |
audit/stable-5.16 PR 20211101
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Linus Torvalds
|
cdab10bf32 |
selinux/stable-5.16 PR 20211101
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Merge tag 'selinux-pr-20211101' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux updates from Paul Moore:
- Add LSM/SELinux/Smack controls and auditing for io-uring.
As usual, the individual commit descriptions have more detail, but we
were basically missing two things which we're adding here:
+ establishment of a proper audit context so that auditing of
io-uring ops works similarly to how it does for syscalls (with
some io-uring additions because io-uring ops are *not* syscalls)
+ additional LSM hooks to enable access control points for some of
the more unusual io-uring features, e.g. credential overrides.
The additional audit callouts and LSM hooks were done in conjunction
with the io-uring folks, based on conversations and RFC patches
earlier in the year.
- Fixup the binder credential handling so that the proper credentials
are used in the LSM hooks; the commit description and the code
comment which is removed in these patches are helpful to understand
the background and why this is the proper fix.
- Enable SELinux genfscon policy support for securityfs, allowing
improved SELinux filesystem labeling for other subsystems which make
use of securityfs, e.g. IMA.
* tag 'selinux-pr-20211101' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
security: Return xattr name from security_dentry_init_security()
selinux: fix a sock regression in selinux_ip_postroute_compat()
binder: use cred instead of task for getsecid
binder: use cred instead of task for selinux checks
binder: use euid from cred instead of using task
LSM: Avoid warnings about potentially unused hook variables
selinux: fix all of the W=1 build warnings
selinux: make better use of the nf_hook_state passed to the NF hooks
selinux: fix race condition when computing ocontext SIDs
selinux: remove unneeded ipv6 hook wrappers
selinux: remove the SELinux lockdown implementation
selinux: enable genfscon labeling for securityfs
Smack: Brutalist io_uring support
selinux: add support for the io_uring access controls
lsm,io_uring: add LSM hooks to io_uring
io_uring: convert io_uring to the secure anon inode interface
fs: add anon_inode_getfile_secure() similar to anon_inode_getfd_secure()
audit: add filtering for io_uring records
audit,io_uring,io-wq: add some basic audit support to io_uring
audit: prepare audit_context for use in calling contexts beyond syscalls
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Jakub Kicinski
|
b7b98f8689 |
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says: ==================== pull-request: bpf-next 2021-11-01 We've added 181 non-merge commits during the last 28 day(s) which contain a total of 280 files changed, 11791 insertions(+), 5879 deletions(-). The main changes are: 1) Fix bpf verifier propagation of 64-bit bounds, from Alexei. 2) Parallelize bpf test_progs, from Yucong and Andrii. 3) Deprecate various libbpf apis including af_xdp, from Andrii, Hengqi, Magnus. 4) Improve bpf selftests on s390, from Ilya. 5) bloomfilter bpf map type, from Joanne. 6) Big improvements to JIT tests especially on Mips, from Johan. 7) Support kernel module function calls from bpf, from Kumar. 8) Support typeless and weak ksym in light skeleton, from Kumar. 9) Disallow unprivileged bpf by default, from Pawan. 10) BTF_KIND_DECL_TAG support, from Yonghong. 11) Various bpftool cleanups, from Quentin. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (181 commits) libbpf: Deprecate AF_XDP support kbuild: Unify options for BTF generation for vmlinux and modules selftests/bpf: Add a testcase for 64-bit bounds propagation issue. bpf: Fix propagation of signed bounds from 64-bit min/max into 32-bit. bpf: Fix propagation of bounds from 64-bit min/max into 32-bit and var_off. selftests/bpf: Fix also no-alu32 strobemeta selftest bpf: Add missing map_delete_elem method to bloom filter map selftests/bpf: Add bloom map success test for userspace calls bpf: Add alignment padding for "map_extra" + consolidate holes bpf: Bloom filter map naming fixups selftests/bpf: Add test cases for struct_ops prog bpf: Add dummy BPF STRUCT_OPS for test purpose bpf: Factor out helpers for ctx access checking bpf: Factor out a helper to prepare trampoline for struct_ops prog selftests, bpf: Fix broken riscv build riscv, libbpf: Add RISC-V (RV64) support to bpf_tracing.h tools, build: Add RISC-V to HOSTARCH parsing riscv, bpf: Increase the maximum number of iterations selftests, bpf: Add one test for sockmap with strparser selftests, bpf: Fix test_txmsg_ingress_parser error ... ==================== Link: https://lore.kernel.org/r/20211102013123.9005-1-alexei.starovoitov@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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James Prestwood
|
18ac597af2 |
net: ndisc: introduce ndisc_evict_nocarrier sysctl parameter
In most situations the neighbor discovery cache should be cleared on a NOCARRIER event which is currently done unconditionally. But for wireless roams the neighbor discovery cache can and should remain intact since the underlying network has not changed. This patch introduces a sysctl option ndisc_evict_nocarrier which can be disabled by a wireless supplicant during a roam. This allows packets to be sent after a roam immediately without having to wait for neighbor discovery. A user reported roughly a 1 second delay after a roam before packets could be sent out (note, on IPv4). This delay was due to the ARP cache being cleared. During testing of this same scenario using IPv6 no delay was noticed, but regardless there is no reason to clear the ndisc cache for wireless roams. Signed-off-by: James Prestwood <prestwoj@gmail.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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James Prestwood
|
fcdb44d08a |
net: arp: introduce arp_evict_nocarrier sysctl parameter
This change introduces a new sysctl parameter, arp_evict_nocarrier.
When set (default) the ARP cache will be cleared on a NOCARRIER event.
This new option has been defaulted to '1' which maintains existing
behavior.
Clearing the ARP cache on NOCARRIER is relatively new, introduced by:
commit
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Linus Torvalds
|
316b7eaa93 |
Updates for the IPMI driver
A new type of low-level IPMI driver is added for direct communication over the IPMI message bus without a BMC between the driver and the bus. Other than that, lots of little bug fixes and enhancements. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE/Q1c5nzg9ZpmiCaGYfOMkJGb/4EFAmF/5YwACgkQYfOMkJGb /4GV5A/8CSXagtu6JJTY88+7CNxXSca4fIGcpO8RZUA1b+Hkw3+y/Qlv/djK6bk1 lt16OpMxSYggTXtkfH6f8zRnf5jAbXDIrcdYAZdCdIt/u4zgXksa8XycUgYDcVS8 Tb07qO55HsNwjjjPglIUXqohkpyuilJLpBDhWW+AWNDs2niAwFFpFoBTDnDbZEe1 6ide1f/IBhibwEx4T4nGs45VKUB+jHsORSj8+fB2suREgs0GTGf51E9NyR91CYyk uSkqpeHVN85KzTWAeAV5nCfRab/rBVS/EL8tEQEt1LniXZpJs3bJHLJFhgaQWesB 6b2hVdL8FoG5qO1Xcf2ofbLKdrY+AOWW8gBWfsZmsK2dQYex+CHO7bm2BkRt037i YJdg5+qXz093uDCotYZYvGjm+TTmrTeFVhEJD6+CW0AyVeSAqBB3TBxqDpBn3LfN p2sTUS/1BZuChe0VXPXcDkkUFsVs3J+Z4lFl0f/WzTFUxWZEC/ELh/3Nuz7J2eYy gEXWqvox8BAU8byYucmLNb7xelFztjXpga+WSDk7kEIIStM6aeIVKenpYI/KJCr/ jZh0M/zYUk4QVMf54nsWEfWOiKi7D4UyE+C3Ijta2UordLTetLeY40HVZqyPwbPE AMDJH2MhmIr5soIw1yMVP0cp+6CWatBgnrHcXSbBc8ZpJEJzCNU= =WxcC -----END PGP SIGNATURE----- Merge tag 'for-linus-5.16-1' of https://github.com/cminyard/linux-ipmi Pull IPMI driver updates from Corey Minyard: "A new type of low-level IPMI driver is added for direct communication over the IPMI message bus without a BMC between the driver and the bus. Other than that, lots of little bug fixes and enhancements" * tag 'for-linus-5.16-1' of https://github.com/cminyard/linux-ipmi: ipmi: kcs_bmc: Fix a memory leak in the error handling path of 'kcs_bmc_serio_add_device()' char: ipmi: replace snprintf in show functions with sysfs_emit ipmi: ipmb: fix dependencies to eliminate build error ipmi:ipmb: Add OF support ipmi: bt: Add ast2600 compatible string ipmi: bt-bmc: Use registers directly ipmi: ipmb: Fix off-by-one size check on rcvlen ipmi:ssif: Use depends on, not select, for I2C ipmi: Add docs for the IPMI IPMB driver ipmi: Add docs for IPMB direct addressing ipmi:ipmb: Add initial support for IPMI over IPMB ipmi: Add support for IPMB direct messages ipmi: Export ipmb_checksum() ipmi: Fix a typo ipmi: Check error code before processing BMC response ipmi:devintf: Return a proper error when recv buffer too small ipmi: Disable some operations during a panic ipmi:watchdog: Set panic count to proper value on a panic |
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Linus Torvalds
|
73d21a3579 |
media updates for v5.16-rc1
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Linus Torvalds
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2dc26d98cf |
overflow updates for v5.16-rc1
The end goal of the current buffer overflow detection work[0] is to gain full compile-time and run-time coverage of all detectable buffer overflows seen via array indexing or memcpy(), memmove(), and memset(). The str*() family of functions already have full coverage. While much of the work for these changes have been on-going for many releases (i.e. 0-element and 1-element array replacements, as well as avoiding false positives and fixing discovered overflows[1]), this series contains the foundational elements of several related buffer overflow detection improvements by providing new common helpers and FORTIFY_SOURCE changes needed to gain the introspection required for compiler visibility into array sizes. Also included are a handful of already Acked instances using the helpers (or related clean-ups), with many more waiting at the ready to be taken via subsystem-specific trees[2]. The new helpers are: - struct_group() for gaining struct member range introspection. - memset_after() and memset_startat() for clearing to the end of structures. - DECLARE_FLEX_ARRAY() for using flex arrays in unions or alone in structs. Also included is the beginning of the refactoring of FORTIFY_SOURCE to support memcpy() introspection, fix missing and regressed coverage under GCC, and to prepare to fix the currently broken Clang support. Finishing this work is part of the larger series[0], but depends on all the false positives and buffer overflow bug fixes to have landed already and those that depend on this series to land. As part of the FORTIFY_SOURCE refactoring, a set of both a compile-time and run-time tests are added for FORTIFY_SOURCE and the mem*()-family functions respectively. The compile time tests have found a legitimate (though corner-case) bug[6] already. Please note that the appearance of "panic" and "BUG" in the FORTIFY_SOURCE refactoring are the result of relocating existing code, and no new use of those code-paths are expected nor desired. Finally, there are two tree-wide conversions for 0-element arrays and flexible array unions to gain sane compiler introspection coverage that result in no known object code differences. After this series (and the changes that have now landed via netdev and usb), we are very close to finally being able to build with -Warray-bounds and -Wzero-length-bounds. However, due corner cases in GCC[3] and Clang[4], I have not included the last two patches that turn on these options, as I don't want to introduce any known warnings to the build. Hopefully these can be solved soon. [0] https://lore.kernel.org/lkml/20210818060533.3569517-1-keescook@chromium.org/ [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/?qt=grep&q=FORTIFY_SOURCE [2] https://lore.kernel.org/lkml/202108220107.3E26FE6C9C@keescook/ [3] https://lore.kernel.org/lkml/3ab153ec-2798-da4c-f7b1-81b0ac8b0c5b@roeck-us.net/ [4] https://bugs.llvm.org/show_bug.cgi?id=51682 [5] https://lore.kernel.org/lkml/202109051257.29B29745C0@keescook/ [6] https://lore.kernel.org/lkml/20211020200039.170424-1-keescook@chromium.org/ -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmGAFWcWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJmKFD/45MJdnvW5MhIEeW5tc5UjfcIPS ae+YvlEX/2ZwgSlTxocFVocE6hz7b6eCiX3dSAChPkPxsSfgeiuhjxsU+4ROnELR 04RqTA/rwT6JXfJcXbDPXfxDL4huUkgktAW3m1sT771AZspeap2GrSwFyttlTqKA +kTiZ3lXJVFcw10uyhfp3Lk6eFJxdf5iOjuEou5kBOQfpNKEOduRL2K15hSowOwB lARiAC+HbmN+E+npvDE7YqK4V7ZQ0/dtB0BlfqgTkn1spQz8N21kBAMpegV5vvIk A+qGHc7q2oyk4M14TRTidQHGQ4juW1Kkvq3NV6KzwQIVD+mIfz0ESn3d4tnp28Hk Y+OXTI1BRFlApQU9qGWv33gkNEozeyqMLDRLKhDYRSFPA9UKkpgXQRzeTzoLKyrQ 4B6n5NnUGcu7I6WWhpyZQcZLDsHGyy0vHzjQGs/NXtb1PzXJ5XIGuPdmx9pVMykk IVKnqRcWyGWahfh3asOnoXvdhi1No4NSHQ/ZHfUM+SrIGYjBMaUisw66qm3Fe8ZU lbO2CFkCsfGSoKNPHf0lUEGlkyxAiDolazOfflDNxdzzlZo2X1l/a7O/yoO4Pqul cdL0eDjiNoQ2YR2TSYPnXq5KSL1RI0tlfS8pH8k1hVhZsQx0wpAQ+qki0S+fLePV PdA9XB82G2tmqKc9cQ== =9xbT -----END PGP SIGNATURE----- Merge tag 'overflow-v5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull overflow updates from Kees Cook: "The end goal of the current buffer overflow detection work[0] is to gain full compile-time and run-time coverage of all detectable buffer overflows seen via array indexing or memcpy(), memmove(), and memset(). The str*() family of functions already have full coverage. While much of the work for these changes have been on-going for many releases (i.e. 0-element and 1-element array replacements, as well as avoiding false positives and fixing discovered overflows[1]), this series contains the foundational elements of several related buffer overflow detection improvements by providing new common helpers and FORTIFY_SOURCE changes needed to gain the introspection required for compiler visibility into array sizes. Also included are a handful of already Acked instances using the helpers (or related clean-ups), with many more waiting at the ready to be taken via subsystem-specific trees[2]. The new helpers are: - struct_group() for gaining struct member range introspection - memset_after() and memset_startat() for clearing to the end of structures - DECLARE_FLEX_ARRAY() for using flex arrays in unions or alone in structs Also included is the beginning of the refactoring of FORTIFY_SOURCE to support memcpy() introspection, fix missing and regressed coverage under GCC, and to prepare to fix the currently broken Clang support. Finishing this work is part of the larger series[0], but depends on all the false positives and buffer overflow bug fixes to have landed already and those that depend on this series to land. As part of the FORTIFY_SOURCE refactoring, a set of both a compile-time and run-time tests are added for FORTIFY_SOURCE and the mem*()-family functions respectively. The compile time tests have found a legitimate (though corner-case) bug[6] already. Please note that the appearance of "panic" and "BUG" in the FORTIFY_SOURCE refactoring are the result of relocating existing code, and no new use of those code-paths are expected nor desired. Finally, there are two tree-wide conversions for 0-element arrays and flexible array unions to gain sane compiler introspection coverage that result in no known object code differences. After this series (and the changes that have now landed via netdev and usb), we are very close to finally being able to build with -Warray-bounds and -Wzero-length-bounds. However, due corner cases in GCC[3] and Clang[4], I have not included the last two patches that turn on these options, as I don't want to introduce any known warnings to the build. Hopefully these can be solved soon" Link: https://lore.kernel.org/lkml/20210818060533.3569517-1-keescook@chromium.org/ [0] Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/?qt=grep&q=FORTIFY_SOURCE [1] Link: https://lore.kernel.org/lkml/202108220107.3E26FE6C9C@keescook/ [2] Link: https://lore.kernel.org/lkml/3ab153ec-2798-da4c-f7b1-81b0ac8b0c5b@roeck-us.net/ [3] Link: https://bugs.llvm.org/show_bug.cgi?id=51682 [4] Link: https://lore.kernel.org/lkml/202109051257.29B29745C0@keescook/ [5] Link: https://lore.kernel.org/lkml/20211020200039.170424-1-keescook@chromium.org/ [6] * tag 'overflow-v5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (30 commits) fortify: strlen: Avoid shadowing previous locals compiler-gcc.h: Define __SANITIZE_ADDRESS__ under hwaddress sanitizer treewide: Replace 0-element memcpy() destinations with flexible arrays treewide: Replace open-coded flex arrays in unions stddef: Introduce DECLARE_FLEX_ARRAY() helper btrfs: Use memset_startat() to clear end of struct string.h: Introduce memset_startat() for wiping trailing members and padding xfrm: Use memset_after() to clear padding string.h: Introduce memset_after() for wiping trailing members/padding lib: Introduce CONFIG_MEMCPY_KUNIT_TEST fortify: Add compile-time FORTIFY_SOURCE tests fortify: Allow strlen() and strnlen() to pass compile-time known lengths fortify: Prepare to improve strnlen() and strlen() warnings fortify: Fix dropped strcpy() compile-time write overflow check fortify: Explicitly disable Clang support fortify: Move remaining fortify helpers into fortify-string.h lib/string: Move helper functions out of string.c compiler_types.h: Remove __compiletime_object_size() cm4000_cs: Use struct_group() to zero struct cm4000_dev region can: flexcan: Use struct_group() to zero struct flexcan_regs regions ... |
||
|
Joanne Koong
|
8845b4681b |
bpf: Add alignment padding for "map_extra" + consolidate holes
This patch makes 2 changes regarding alignment padding
for the "map_extra" field.
1) In the kernel header, "map_extra" and "btf_value_type_id"
are rearranged to consolidate the hole.
Before:
struct bpf_map {
...
u32 max_entries; /* 36 4 */
u32 map_flags; /* 40 4 */
/* XXX 4 bytes hole, try to pack */
u64 map_extra; /* 48 8 */
int spin_lock_off; /* 56 4 */
int timer_off; /* 60 4 */
/* --- cacheline 1 boundary (64 bytes) --- */
u32 id; /* 64 4 */
int numa_node; /* 68 4 */
...
bool frozen; /* 117 1 */
/* XXX 10 bytes hole, try to pack */
/* --- cacheline 2 boundary (128 bytes) --- */
...
struct work_struct work; /* 144 72 */
/* --- cacheline 3 boundary (192 bytes) was 24 bytes ago --- */
struct mutex freeze_mutex; /* 216 144 */
/* --- cacheline 5 boundary (320 bytes) was 40 bytes ago --- */
u64 writecnt; /* 360 8 */
/* size: 384, cachelines: 6, members: 26 */
/* sum members: 354, holes: 2, sum holes: 14 */
/* padding: 16 */
/* forced alignments: 2, forced holes: 1, sum forced holes: 10 */
} __attribute__((__aligned__(64)));
After:
struct bpf_map {
...
u32 max_entries; /* 36 4 */
u64 map_extra; /* 40 8 */
u32 map_flags; /* 48 4 */
int spin_lock_off; /* 52 4 */
int timer_off; /* 56 4 */
u32 id; /* 60 4 */
/* --- cacheline 1 boundary (64 bytes) --- */
int numa_node; /* 64 4 */
...
bool frozen /* 113 1 */
/* XXX 14 bytes hole, try to pack */
/* --- cacheline 2 boundary (128 bytes) --- */
...
struct work_struct work; /* 144 72 */
/* --- cacheline 3 boundary (192 bytes) was 24 bytes ago --- */
struct mutex freeze_mutex; /* 216 144 */
/* --- cacheline 5 boundary (320 bytes) was 40 bytes ago --- */
u64 writecnt; /* 360 8 */
/* size: 384, cachelines: 6, members: 26 */
/* sum members: 354, holes: 1, sum holes: 14 */
/* padding: 16 */
/* forced alignments: 2, forced holes: 1, sum forced holes: 14 */
} __attribute__((__aligned__(64)));
2) Add alignment padding to the bpf_map_info struct
More details can be found in commit
|
||
|
Linus Torvalds
|
595b28fb0c |
Locking updates:
- Move futex code into kernel/futex/ and split up the kitchen sink into
seperate files to make integration of sys_futex_waitv() simpler.
- Add a new sys_futex_waitv() syscall which allows to wait on multiple
futexes. The main use case is emulating Windows' WaitForMultipleObjects
which allows Wine to improve the performance of Windows Games. Also
native Linux games can benefit from this interface as this is a common
wait pattern for this kind of applications.
- Add context to ww_mutex_trylock() to provide a path for i915 to rework
their eviction code step by step without making lockdep upset until the
final steps of rework are completed. It's also useful for regulator and
TTM to avoid dropping locks in the non contended path.
- Lockdep and might_sleep() cleanups and improvements
- A few improvements for the RT substitutions.
- The usual small improvements and cleanups.
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Merge tag 'locking-core-2021-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Thomas Gleixner:
- Move futex code into kernel/futex/ and split up the kitchen sink into
seperate files to make integration of sys_futex_waitv() simpler.
- Add a new sys_futex_waitv() syscall which allows to wait on multiple
futexes.
The main use case is emulating Windows' WaitForMultipleObjects which
allows Wine to improve the performance of Windows Games. Also native
Linux games can benefit from this interface as this is a common wait
pattern for this kind of applications.
- Add context to ww_mutex_trylock() to provide a path for i915 to
rework their eviction code step by step without making lockdep upset
until the final steps of rework are completed. It's also useful for
regulator and TTM to avoid dropping locks in the non contended path.
- Lockdep and might_sleep() cleanups and improvements
- A few improvements for the RT substitutions.
- The usual small improvements and cleanups.
* tag 'locking-core-2021-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
locking: Remove spin_lock_flags() etc
locking/rwsem: Fix comments about reader optimistic lock stealing conditions
locking: Remove rcu_read_{,un}lock() for preempt_{dis,en}able()
locking/rwsem: Disable preemption for spinning region
docs: futex: Fix kernel-doc references
futex: Fix PREEMPT_RT build
futex2: Documentation: Document sys_futex_waitv() uAPI
selftests: futex: Test sys_futex_waitv() wouldblock
selftests: futex: Test sys_futex_waitv() timeout
selftests: futex: Add sys_futex_waitv() test
futex,arm: Wire up sys_futex_waitv()
futex,x86: Wire up sys_futex_waitv()
futex: Implement sys_futex_waitv()
futex: Simplify double_lock_hb()
futex: Split out wait/wake
futex: Split out requeue
futex: Rename mark_wake_futex()
futex: Rename: match_futex()
futex: Rename: hb_waiter_{inc,dec,pending}()
futex: Split out PI futex
...
|
||
|
Linus Torvalds
|
91e1c99e17 |
perf updates:
core:
- Allow ftrace to instrument parts of the perf core code
- Add a new mem_hops field to perf_mem_data_src which allows to represent
intra-node/package or inter-node/off-package details to prepare for
next generation systems which have more hieararchy within the
node/pacakge level.
tools:
- Update for the new mem_hops field in perf_mem_data_src
arch:
- A set of constraints fixes for the Intel uncore PMU
- The usual set of small fixes and improvements for x86 and PPC
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Merge tag 'perf-core-2021-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Thomas Gleixner:
"Core:
- Allow ftrace to instrument parts of the perf core code
- Add a new mem_hops field to perf_mem_data_src which allows to
represent intra-node/package or inter-node/off-package details to
prepare for next generation systems which have more hieararchy
within the node/pacakge level.
Tools:
- Update for the new mem_hops field in perf_mem_data_src
Arch:
- A set of constraints fixes for the Intel uncore PMU
- The usual set of small fixes and improvements for x86 and PPC"
* tag 'perf-core-2021-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel: Fix ICL/SPR INST_RETIRED.PREC_DIST encodings
powerpc/perf: Fix data source encodings for L2.1 and L3.1 accesses
tools/perf: Add mem_hops field in perf_mem_data_src structure
perf: Add mem_hops field in perf_mem_data_src structure
perf: Add comment about current state of PERF_MEM_LVL_* namespace and remove an extra line
perf/core: Allow ftrace for functions in kernel/event/core.c
perf/x86: Add new event for AUX output counter index
perf/x86: Add compiler barrier after updating BTS
perf/x86/intel/uncore: Fix Intel SPR M3UPI event constraints
perf/x86/intel/uncore: Fix Intel SPR M2PCIE event constraints
perf/x86/intel/uncore: Fix Intel SPR IIO event constraints
perf/x86/intel/uncore: Fix Intel SPR CHA event constraints
perf/x86/intel/uncore: Fix Intel ICX IIO event constraints
perf/x86/intel/uncore: Fix invalid unit check
perf/x86/intel/uncore: Support extra IMC channel on Ice Lake server
|
||
|
Linus Torvalds
|
037c50bfbe |
for-5.16-tag
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Merge tag 'for-5.16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"The updates this time are more under the hood and enhancing existing
features (subpage with compression and zoned namespaces).
Performance related:
- misc small inode logging improvements (+3% throughput, -11% latency
on sample dbench workload)
- more efficient directory logging: bulk item insertion, less tree
searches and locking
- speed up bulk insertion of items into a b-tree, which is used when
logging directories, when running delayed items for directories
(fsync and transaction commits) and when running the slow path
(full sync) of an fsync (bulk creation run time -4%, deletion -12%)
Core:
- continued subpage support
- make defragmentation work
- make compression write work
- zoned mode
- support ZNS (zoned namespaces), zone capacity is number of
usable blocks in each zone
- add dedicated block group (zoned) for relocation, to prevent
out of order writes in some cases
- greedy block group reclaim, pick the ones with least usable
space first
- preparatory work for send protocol updates
- error handling improvements
- cleanups and refactoring
Fixes:
- lockdep warnings
- in show_devname callback, on seeding device
- device delete on loop device due to conversions to workqueues
- fix deadlock between chunk allocation and chunk btree modifications
- fix tracking of missing device count and status"
* tag 'for-5.16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (140 commits)
btrfs: remove root argument from check_item_in_log()
btrfs: remove root argument from add_link()
btrfs: remove root argument from btrfs_unlink_inode()
btrfs: remove root argument from drop_one_dir_item()
btrfs: clear MISSING device status bit in btrfs_close_one_device
btrfs: call btrfs_check_rw_degradable only if there is a missing device
btrfs: send: prepare for v2 protocol
btrfs: fix comment about sector sizes supported in 64K systems
btrfs: update device path inode time instead of bd_inode
fs: export an inode_update_time helper
btrfs: fix deadlock when defragging transparent huge pages
btrfs: sysfs: convert scnprintf and snprintf to sysfs_emit
btrfs: make btrfs_super_block size match BTRFS_SUPER_INFO_SIZE
btrfs: update comments for chunk allocation -ENOSPC cases
btrfs: fix deadlock between chunk allocation and chunk btree modifications
btrfs: zoned: use greedy gc for auto reclaim
btrfs: check-integrity: stop storing the block device name in btrfsic_dev_state
btrfs: use btrfs_get_dev_args_from_path in dev removal ioctls
btrfs: add a btrfs_get_dev_args_from_path helper
btrfs: handle device lookup with btrfs_dev_lookup_args
...
|
||
Jason Gunthorpe
|
a2a2a69d14 |
Linux 5.15
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||
|
Linus Torvalds
|
737f1cd8a8 |
for-5.16/cdrom-2021-10-29
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||
|
Linus Torvalds
|
8d1f01775f |
for-5.16/io_uring-2021-10-29
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Merge tag 'for-5.16/io_uring-2021-10-29' of git://git.kernel.dk/linux-block
Pull io_uring updates from Jens Axboe:
"Light on new features - basically just the hybrid mode support.
Outside of that it's just fixes, cleanups, and performance
improvements.
In detail:
- Add ring related information to the fdinfo output (Hao)
- Hybrid async mode (Hao)
- Support for batched issue on block (me)
- sqe error trace improvement (me)
- IOPOLL efficiency improvements (Pavel)
- submit state cleanups and improvements (Pavel)
- Completion side improvements (Pavel)
- Drain improvements (Pavel)
- Buffer selection cleanups (Pavel)
- Fixed file node improvements (Pavel)
- io-wq setup cancelation fix (Pavel)
- Various other performance improvements and cleanups (Pavel)
- Misc fixes (Arnd, Bixuan, Changcheng, Hao, me, Noah)"
* tag 'for-5.16/io_uring-2021-10-29' of git://git.kernel.dk/linux-block: (97 commits)
io-wq: remove worker to owner tw dependency
io_uring: harder fdinfo sq/cq ring iterating
io_uring: don't assign write hint in the read path
io_uring: clusterise ki_flags access in rw_prep
io_uring: kill unused param from io_file_supports_nowait
io_uring: clean up timeout async_data allocation
io_uring: don't try io-wq polling if not supported
io_uring: check if opcode needs poll first on arming
io_uring: clean iowq submit work cancellation
io_uring: clean io_wq_submit_work()'s main loop
io-wq: use helper for worker refcounting
io_uring: implement async hybrid mode for pollable requests
io_uring: Use ERR_CAST() instead of ERR_PTR(PTR_ERR())
io_uring: split logic of force_nonblock
io_uring: warning about unused-but-set parameter
io_uring: inform block layer of how many requests we are submitting
io_uring: simplify io_file_supports_nowait()
io_uring: combine REQ_F_NOWAIT_{READ,WRITE} flags
io_uring: arm poll for non-nowait files
fs/io_uring: Prioritise checking faster conditions first in io_write
...
|
||
|
Linus Torvalds
|
643a7234e0 |
for-5.16/drivers-2021-10-29
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Merge tag 'for-5.16/drivers-2021-10-29' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe:
- paride driver cleanups (Christoph)
- Remove cryptoloop support (Christoph)
- null_blk poll support (me)
- Now that add_disk() supports proper error handling, add it to various
drivers (Luis)
- Make ataflop actually work again (Michael)
- s390 dasd fixes (Stefan, Heiko)
- nbd fixes (Yu, Ye)
- Remove redundant wq flush in mtip32xx (Christophe)
- NVMe updates
- fix a multipath partition scanning deadlock (Hannes Reinecke)
- generate uevent once a multipath namespace is operational again
(Hannes Reinecke)
- support unique discovery controller NQNs (Hannes Reinecke)
- fix use-after-free when a port is removed (Israel Rukshin)
- clear shadow doorbell memory on resets (Keith Busch)
- use struct_size (Len Baker)
- add error handling support for add_disk (Luis Chamberlain)
- limit the maximal queue size for RDMA controllers (Max Gurtovoy)
- use a few more symbolic names (Max Gurtovoy)
- fix error code in nvme_rdma_setup_ctrl (Max Gurtovoy)
- add support for ->map_queues on FC (Saurav Kashyap)
- support the current discovery subsystem entry (Hannes Reinecke)
- use flex_array_size and struct_size (Len Baker)
- bcache fixes (Christoph, Coly, Chao, Lin, Qing)
- MD updates (Christoph, Guoqing, Xiao)
- Misc fixes (Dan, Ding, Jiapeng, Shin'ichiro, Ye)
* tag 'for-5.16/drivers-2021-10-29' of git://git.kernel.dk/linux-block: (117 commits)
null_blk: Fix handling of submit_queues and poll_queues attributes
block: ataflop: Fix warning comparing pointer to 0
bcache: replace snprintf in show functions with sysfs_emit
bcache: move uapi header bcache.h to bcache code directory
nvmet: use flex_array_size and struct_size
nvmet: register discovery subsystem as 'current'
nvmet: switch check for subsystem type
nvme: add new discovery log page entry definitions
block: ataflop: more blk-mq refactoring fixes
block: remove support for cryptoloop and the xor transfer
mtd: add add_disk() error handling
rnbd: add error handling support for add_disk()
um/drivers/ubd_kern: add error handling support for add_disk()
m68k/emu/nfblock: add error handling support for add_disk()
xen-blkfront: add error handling support for add_disk()
bcache: add error handling support for add_disk()
dm: add add_disk() error handling
block: aoe: fixup coccinelle warnings
nvmet: use struct_size over open coded arithmetic
nvme: drop scan_lock and always kick requeue list when removing namespaces
...
|
||
|
Linus Torvalds
|
9ac211426f |
File locking changes for v5.16
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||
Takashi Iwai
|
a0292f3ebe |
ASoC: Updates for v5.16
This is an unusually large set of updates, mostly a large crop of
unusually big drivers coupled with extensive overhauls of existing code.
There's a SH change here for the DAI format terminology, the change is
straightforward and the SH maintainers don't seem very active.
- A new version of the audio graph card which supports a wider range of
systems.
- Move of the Cirrus DSP framework into drivers/firmware to allow for
future use by non-audio DSPs.
- Several conversions to YAML DT bindings.
- Continuing cleanups to the SOF and Intel code.
- A very big overhaul of the cs42l42 driver, correcting many problems.
- Support for AMD Vangogh and Yelow Cap, Cirrus CS35L41, Maxim
MAX98520 and MAX98360A, Mediatek MT8195, Nuvoton NAU8821, nVidia
Tegra210, NXP i.MX8ULP, Qualcomm AudioReach, Realtek ALC5682I-VS,
RT5682S, and RT9120 and Rockchip RV1126 and RK3568
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Merge tag 'asoc-v5.16' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.16
This is an unusually large set of updates, mostly a large crop of
unusually big drivers coupled with extensive overhauls of existing code.
There's a SH change here for the DAI format terminology, the change is
straightforward and the SH maintainers don't seem very active.
- A new version of the audio graph card which supports a wider range of
systems.
- Move of the Cirrus DSP framework into drivers/firmware to allow for
future use by non-audio DSPs.
- Several conversions to YAML DT bindings.
- Continuing cleanups to the SOF and Intel code.
- A very big overhaul of the cs42l42 driver, correcting many problems.
- Support for AMD Vangogh and Yelow Cap, Cirrus CS35L41, Maxim
MAX98520 and MAX98360A, Mediatek MT8195, Nuvoton NAU8821, nVidia
Tegra210, NXP i.MX8ULP, Qualcomm AudioReach, Realtek ALC5682I-VS,
RT5682S, and RT9120 and Rockchip RV1126 and RK3568
|
||
Taehee Yoo
|
b9022b53ad |
amt: add control plane of amt interface
It adds definitions and control plane code for AMT. this is very similar to udp tunneling interfaces such as gtp, vxlan, etc. In the next patch, data plane code will be added. Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
David S. Miller
|
894d084434 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for net-next: 1) Use array_size() in ebtables, from Gustavo A. R. Silva. 2) Attach IPS_ASSURED to internal UDP stream state, reported by Maciej Zenczykowski. 3) Add NFT_META_IFTYPE to match on the interface type either from ingress or egress. 4) Generalize pktinfo->tprot_set to flags field. 5) Allow to match on inner headers / payload data. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
||
Parav Pandit
|
ad69dd0bf2 |
vdpa: Introduce query of device config layout
Introduce a command to query a device config layout.
An example query of network vdpa device:
$ vdpa dev add name bar mgmtdev vdpasim_net
$ vdpa dev config show
bar: mac 00:35:09:19:48:05 link up link_announce false mtu 1500
$ vdpa dev config show -jp
{
"config": {
"bar": {
"mac": "00:35:09:19:48:05",
"link ": "up",
"link_announce ": false,
"mtu": 1500,
}
}
}
Signed-off-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Eli Cohen <elic@nvidia.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20211026175519.87795-3-parav@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
|
||
|
Viresh Kumar
|
dcce162559 |
i2c: virtio: Add support for zero-length requests
The virtio specification received a new mandatory feature (VIRTIO_I2C_F_ZERO_LENGTH_REQUEST) for zero length requests. Fail if the feature isn't offered by the device. For each read-request, set the VIRTIO_I2C_FLAGS_M_RD flag, as required by the VIRTIO_I2C_F_ZERO_LENGTH_REQUEST feature. This allows us to support zero length requests, like SMBUS Quick, where the buffer need not be sent anymore. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Link: https://lore.kernel.org/r/7c58868cd26d2fc4bd82d0d8b0dfb55636380110.1634808714.git.viresh.kumar@linaro.org Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jie Deng <jie.deng@intel.com> # once the spec is merged |
||
Pablo Neira Ayuso
|
c46b38dc87 |
netfilter: nft_payload: support for inner header matching / mangling
Allow to match and mangle on inner headers / payload data after the transport header. There is a new field in the pktinfo structure that stores the inner header offset which is calculated only when requested. Only TCP and UDP supported at this stage. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
||
Wu Zongyong
|
e47be840e8 |
vdpa: add new attribute VDPA_ATTR_DEV_MIN_VQ_SIZE
This attribute advertises the min value of virtqueue size. The value is 1 by default. Signed-off-by: Wu Zongyong <wuzongyong@linux.alibaba.com> Link: https://lore.kernel.org/r/2bbc417355c4d22298050b1ba887cecfbde3e85d.1635493219.git.wuzongyong@linux.alibaba.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
||
|
Pablo Neira Ayuso
|
56fa95014a |
netfilter: nft_meta: add NFT_META_IFTYPE
Generalize NFT_META_IIFTYPE to NFT_META_IFTYPE which allows you to match on the interface type of the skb->dev field. This field is used by the netdev family to add an implicit dependency to skip non-ethernet packets when matching on layer 3 and 4 TCP/IP header fields. For backward compatibility, add the NFT_META_IIFTYPE alias to NFT_META_IFTYPE. Add __NFT_META_IIFTYPE, to be used by userspace in the future to match specifically on the iiftype. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
||
|
Paolo Bonzini
|
4e33868433 |
KVM/arm64 updates for Linux 5.16
- More progress on the protected VM front, now with the full fixed feature set as well as the limitation of some hypercalls after initialisation. - Cleanup of the RAZ/WI sysreg handling, which was pointlessly complicated - Fixes for the vgic placement in the IPA space, together with a bunch of selftests - More memcg accounting of the memory allocated on behalf of a guest - Timer and vgic selftests - Workarounds for the Apple M1 broken vgic implementation - KConfig cleanups - New kvmarm.mode=none option, for those who really dislike us -----BEGIN PGP SIGNATURE----- iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAmF7u5YPHG1hekBrZXJu ZWwub3JnAAoJECPQ0LrRPXpD6w8QAIKDLJCTqkxv5Vh4ZSmtXxg4gTZMBlg8oSQ8 sVL639aqBvFe3A6Vmz6IwBm+NT7Sm1zxkuH9qHzVR1gmXq0oLYNrIuyrzRW8PvqO hIkSRRoVsf03755TmkxwR7/2jAFxb6FhEVAy6VWdQyI44orihIPvMp8aTIq+jvU+ XoNGb/rPf9HpSUtvuaHYvZhSZBhoi5dRnkr33R1+VR69n7Axs8lm905xcl6Pt0a0 QqYZWQvFu/BXPyNflG7LUsegRF/iiV2vNTbNNowkzlV5suqxBpJAp6ApDL/gWrHv ya/6cMqicSjBIkWnawhXY98w6/5xfzK4IV/zc00FNWOlUdVP89Thqrgc8EkigS9R BGcxFFqj41snr+ensSBBIkNtV+dBX52H3rUE0F9seiTXm8QWI86JobdeNadT8tUP TXdOeCUcA+cp4Ngln18lsbOEaBkPA5H1po1nUFPHbKnVOxnqXScB7E/xF6rAbryV m+Z+oidU7MyS/Ev/Da0ww/XFx7cs2ez9EgeQvjcdFAvUMqS6kcXEExvgGYlm+KRQ GBMKPLCNHKdflMANoSpol7MZUmPJ45XoWKW1rntj2r9X+oJW2Z2hEx32xrWDJdqK ixnbjog5kNZb0CjLGsUC90lo2hpRJecaLhAjgTLYaNC1QxGPrt92eat6gnwuMTBc mpADqi7w =qBAO -----END PGP SIGNATURE----- Merge tag 'kvmarm-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for Linux 5.16 - More progress on the protected VM front, now with the full fixed feature set as well as the limitation of some hypercalls after initialisation. - Cleanup of the RAZ/WI sysreg handling, which was pointlessly complicated - Fixes for the vgic placement in the IPA space, together with a bunch of selftests - More memcg accounting of the memory allocated on behalf of a guest - Timer and vgic selftests - Workarounds for the Apple M1 broken vgic implementation - KConfig cleanups - New kvmarm.mode=none option, for those who really dislike us |
||
Coly Li
|
cf2197ca4b |
bcache: move uapi header bcache.h to bcache code directory
The header file include/uapi/linux/bcache.h is not really a user space API heaer. This file defines the ondisk format of bcache internal meta data but no one includes it from user space, bcache-tools has its own copy of this header with minor modification. Therefore, this patch moves include/uapi/linux/bcache.h to bcache code directory as drivers/md/bcache/bcache_ondisk.h. Suggested-by: Arnd Bergmann <arnd@kernel.org> Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Coly Li <colyli@suse.de> Link: https://lore.kernel.org/r/20211029060930.119923-2-colyli@suse.de Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
David Sterba
|
e77fbf9903 |
btrfs: send: prepare for v2 protocol
This is preparatory work for send protocol update to version 2 and higher. We have many pending protocol update requests but still don't have the basic protocol rev in place, the first thing that must happen is to do the actual versioning support. The protocol version is u32 and is a new member in the send ioctl struct. Validity of the version field is backed by a new flag bit. Old kernels would fail when a higher version is requested. Version protocol 0 will pick the highest supported version, BTRFS_SEND_STREAM_VERSION, that's also exported in sysfs. The version is still unchanged and will be increased once we have new incompatible commands or stream updates. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
||
Kumar Kartikeya Dwivedi
|
d6aef08a87 |
bpf: Add bpf_kallsyms_lookup_name helper
This helper allows us to get the address of a kernel symbol from inside a BPF_PROG_TYPE_SYSCALL prog (used by gen_loader), so that we can relocate typeless ksym vars. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/20211028063501.2239335-2-memxor@gmail.com |
||
|
Joanne Koong
|
9330986c03 |
bpf: Add bloom filter map implementation
This patch adds the kernel-side changes for the implementation of a bpf bloom filter map. The bloom filter map supports peek (determining whether an element is present in the map) and push (adding an element to the map) operations.These operations are exposed to userspace applications through the already existing syscalls in the following way: BPF_MAP_LOOKUP_ELEM -> peek BPF_MAP_UPDATE_ELEM -> push The bloom filter map does not have keys, only values. In light of this, the bloom filter map's API matches that of queue stack maps: user applications use BPF_MAP_LOOKUP_ELEM/BPF_MAP_UPDATE_ELEM which correspond internally to bpf_map_peek_elem/bpf_map_push_elem, and bpf programs must use the bpf_map_peek_elem and bpf_map_push_elem APIs to query or add an element to the bloom filter map. When the bloom filter map is created, it must be created with a key_size of 0. For updates, the user will pass in the element to add to the map as the value, with a NULL key. For lookups, the user will pass in the element to query in the map as the value, with a NULL key. In the verifier layer, this requires us to modify the argument type of a bloom filter's BPF_FUNC_map_peek_elem call to ARG_PTR_TO_MAP_VALUE; as well, in the syscall layer, we need to copy over the user value so that in bpf_map_peek_elem, we know which specific value to query. A few things to please take note of: * If there are any concurrent lookups + updates, the user is responsible for synchronizing this to ensure no false negative lookups occur. * The number of hashes to use for the bloom filter is configurable from userspace. If no number is specified, the default used will be 5 hash functions. The benchmarks later in this patchset can help compare the performance of using different number of hashes on different entry sizes. In general, using more hashes decreases both the false positive rate and the speed of a lookup. * Deleting an element in the bloom filter map is not supported. * The bloom filter map may be used as an inner map. * The "max_entries" size that is specified at map creation time is used to approximate a reasonable bitmap size for the bloom filter, and is not otherwise strictly enforced. If the user wishes to insert more entries into the bloom filter than "max_entries", they may do so but they should be aware that this may lead to a higher false positive rate. Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-2-joannekoong@fb.com |
||
Alex Deucher
|
72f4c9d570 |
drm/amdgpu/UAPI: rearrange header to better align related items
Move the RAS query parameters to align with the INFO query where they are used. No functional change. Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Luben Tuikov <luben.tuikov@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
||
Amir Goldstein
|
a390ccb316 |
fuse: add FOPEN_NOFLUSH
Add flag returned by FUSE_OPEN and FUSE_CREATE requests to avoid flushing data cache on close. Different filesystems implement ->flush() is different ways: - Most disk filesystems do not implement ->flush() at all - Some network filesystem (e.g. nfs) flush local write cache of FMODE_WRITE file and send a "flush" command to server - Some network filesystem (e.g. cifs) flush local write cache of FMODE_WRITE file without sending an additional command to server FUSE flushes local write cache of ANY file, even non FMODE_WRITE and sends a "flush" command to server (if server implements it). The FUSE implementation of ->flush() seems over agressive and arbitrary and does not make a lot of sense when writeback caching is disabled. Instead of deciding on another arbitrary implementation that makes sense, leave the choice of per-file flush behavior in the hands of the server. Link: https://lore.kernel.org/linux-fsdevel/CAJfpegspE8e6aKd47uZtSYX8Y-1e1FWS0VL0DH2Skb9gQP5RJQ@mail.gmail.com/ Suggested-by: Miklos Szeredi <mszeredi@redhat.com> Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> |
||
Laurent Pinchart
|
31fa8cbce4 |
drm: Add R10 and R12 FourCC
Add FourCCs for 10- and 12-bit red formats with padding to 16 bits.
They correspond to the V4L2 10- and 12-bit greyscale (V4L2_PIX_FMT_Y10
and V4L2_PIX_FMT_Y12) formats, as well as the Bayer formats with the
same bit depth (V4L2_PIX_FMT_SBGGR{10,12} and all other Bayer pattern
permutations).
These formats are not used by any kernel driver at this point, but need
to be exposed to applications by libcamera, which uses DRM FourCCs for
pixel formats.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211027233140.12268-1-laurent.pinchart@ideasonboard.com
|
||
|
Takashi Sakamoto
|
407359d44e |
ALSA: firewire-motu: export meter information to userspace as float value
In command DSP models, one meter information consists of 4 bytes for IEEE 764 floating point (binary32). In previous patch, it is exported to userspace as 32 bit storage since the storage is also handled in ALSA firewire-motu driver as well in kernel space in which floating point arithmetic is not preferable. On the other hand, ALSA firewire-motu driver doesn't perform floating point calculation. The driver just gather meter information from isochronous packets and fill structure fields for userspace. In 'header' target of Kbuild, UAPI headers are processed before installed. In this timing, #ifdef macro with __KERNEL__ is removed. This mechanism is useful in the case so that the 32 bit storage can be accessible as u32 type in kernel space and float type in user space. We can see the same usage in ''struct acct_v3' in 'include/uapi/linux/acct.h'. This commit is for the above idea. Additionally, due to message protocol, meter information is filled with 0xffffffff in the end of period but 0xffffffff is invalid as binary32. To avoid confusion in userspace application, the last two elements are left without any assignment. Suggested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20211027125529.54295-4-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de> |
||
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Takashi Sakamoto
|
0f166e1257 |
ALSA: firewire-motu: refine parser for meter information in register DSP models
After further investigation, I realize that the total number of elements in array is not enough to store all of related messages from device. This commit refines meter array and message parser. In terms of channel identifier, register DSP models are classified to two categories: 1. the target of output is selectable 828mk2, 896hd, and Traveler are in the category. They transfer messages with channel identifier between 0x00 and 0x13 for input meters, therefore 20 elements are needed to store. On the other hand, they transfer messages with channel identifier for one pair of output meters. The selection is done by asynchronous write transaction to offset 0x'ffff'f000'0b2c. The table for relationship between written value and available identifiers is below: ============= =============== written value identifier pair ============= =============== 0x00000b00 0x80/0x81 0x00000b01 0x82/0x83 ... ... 0x00000b0b 0x96/0x97 ... ... 0x00000b10 0xa0/0xa1 ... ... 0x00000b3f 0xfe/0xff ... ... greater 0xfe/0xff ============= =============== Actually in the above three models, 0x96/0x97 pair is the maximum. Thus the number of available output meter is 24. 2. all of output is available 8 pre, Ultralite, Audio Express, and 4 pre are in the category. They transfer messages for output meters without any selection. The table for available identifier for each direction is below: ============== ========= ========== model input output ============== ========= ========== 8 pre 0x00-0x0f 0x82-0x8d Ultralite 0x00-0x09 0x82-0x8f Audio Express 0x00-0x09 0x80-0x8d 4 pre 0x00-0x09 0x80-0x8d ============== ========= ========== Some of available identifiers might not be used for actual output meters. Anyway, 24 plus 24 elements accommodate the input/output meters. I note that isochronous packet from V3HD/V4HD deliver no message. Notification by asynchronous transaction to registered address seems to be used for the purpose as well as for change of mixer parameter. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20211027125529.54295-3-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de> |
||
Dave Airlie
|
970eae1560 |
Linux 5.15-rc7
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmF298ceHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGIJYH/1rsEFQQ6caeQdy1 z9eFIe48DNM4l7bFk+qEj2UAbzPdahVJ299Mg5fW0n2CDemOc9/n0b9TxQ37YObi mOzu0xwJVupIxkyFMPQSSc2q8aLm67NSpJy08DsmaNses5hSvu8x15RPHLQTybjt SwtKns+jpCq79P1GWbrB5e5UkLb0VNoxNp4L1U4pMrYGcEkJUXbaxNY2V/JcXdM7 Vtn+qN0T/J6V6QVftv0t8Ecj3bjEnmL3kZHaTaNg3dGeKRpCGyHc5lcBQ0cNFG6t vjZ9VbuhBzGI3TN2tHH5hpA1UXo7HPBBCwQqxF1jeGLGHULikYwZ3TAPWqL3QZqC 9cxr9SY= =p75d -----END PGP SIGNATURE----- BackMerge tag 'v5.15-rc7' into drm-next The msm next tree is based on rc3, so let's just backmerge rc7 before pulling it in. Signed-off-by: Dave Airlie <airlied@redhat.com> |
||
Michael Weiß
|
2cc1ae4878 |
dm: introduce audit event module for device mapper
To be able to send auditing events to user space, we introduce a generic dm-audit module. It provides helper functions to emit audit events through the kernel audit subsystem. We claim the AUDIT_DM_CTRL type=1336 and AUDIT_DM_EVENT type=1337 out of the audit event messages range in the corresponding userspace api in 'include/uapi/linux/audit.h' for those events. AUDIT_DM_CTRL is used to provide information about creation and destruction of device mapper targets which are triggered by user space admin control actions. AUDIT_DM_EVENT is used to provide information about actual errors during operation of the mapped device, showing e.g. integrity violations in audit log. Following commits to device mapper targets actually will make use of this to emit those events in relevant cases. The audit logs look like this if executing the following simple test: # dd if=/dev/zero of=test.img bs=1M count=1024 # losetup -f test.img # integritysetup -vD format --integrity sha256 -t 32 /dev/loop0 # integritysetup open -D /dev/loop0 --integrity sha256 integritytest # integritysetup status integritytest # integritysetup close integritytest # integritysetup open -D /dev/loop0 --integrity sha256 integritytest # integritysetup status integritytest # dd if=/dev/urandom of=/dev/loop0 bs=512 count=1 seek=100000 # dd if=/dev/mapper/integritytest of=/dev/null ------------------------- audit.log from auditd type=UNKNOWN[1336] msg=audit(1630425039.363:184): module=integrity op=ctr ppid=3807 pid=3819 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup" exe="/sbin/integritysetup" subj==unconfined dev=254:3 error_msg='success' res=1 type=UNKNOWN[1336] msg=audit(1630425039.471:185): module=integrity op=dtr ppid=3807 pid=3819 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup" exe="/sbin/integritysetup" subj==unconfined dev=254:3 error_msg='success' res=1 type=UNKNOWN[1336] msg=audit(1630425039.611:186): module=integrity op=ctr ppid=3807 pid=3819 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup" exe="/sbin/integritysetup" subj==unconfined dev=254:3 error_msg='success' res=1 type=UNKNOWN[1336] msg=audit(1630425054.475:187): module=integrity op=dtr ppid=3807 pid=3819 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup" exe="/sbin/integritysetup" subj==unconfined dev=254:3 error_msg='success' res=1 type=UNKNOWN[1336] msg=audit(1630425073.171:191): module=integrity op=ctr ppid=3807 pid=3883 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup" exe="/sbin/integritysetup" subj==unconfined dev=254:3 error_msg='success' res=1 type=UNKNOWN[1336] msg=audit(1630425087.239:192): module=integrity op=dtr ppid=3807 pid=3902 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup" exe="/sbin/integritysetup" subj==unconfined dev=254:3 error_msg='success' res=1 type=UNKNOWN[1336] msg=audit(1630425093.755:193): module=integrity op=ctr ppid=3807 pid=3906 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts2 ses=3 comm="integritysetup" exe="/sbin/integritysetup" subj==unconfined dev=254:3 error_msg='success' res=1 type=UNKNOWN[1337] msg=audit(1630425112.119:194): module=integrity op=integrity-checksum dev=254:3 sector=77480 res=0 type=UNKNOWN[1337] msg=audit(1630425112.119:195): module=integrity op=integrity-checksum dev=254:3 sector=77480 res=0 type=UNKNOWN[1337] msg=audit(1630425112.119:196): module=integrity op=integrity-checksum dev=254:3 sector=77480 res=0 type=UNKNOWN[1337] msg=audit(1630425112.119:197): module=integrity op=integrity-checksum dev=254:3 sector=77480 res=0 type=UNKNOWN[1337] msg=audit(1630425112.119:198): module=integrity op=integrity-checksum dev=254:3 sector=77480 res=0 type=UNKNOWN[1337] msg=audit(1630425112.119:199): module=integrity op=integrity-checksum dev=254:3 sector=77480 res=0 type=UNKNOWN[1337] msg=audit(1630425112.119:200): module=integrity op=integrity-checksum dev=254:3 sector=77480 res=0 type=UNKNOWN[1337] msg=audit(1630425112.119:201): module=integrity op=integrity-checksum dev=254:3 sector=77480 res=0 type=UNKNOWN[1337] msg=audit(1630425112.119:202): module=integrity op=integrity-checksum dev=254:3 sector=77480 res=0 type=UNKNOWN[1337] msg=audit(1630425112.119:203): module=integrity op=integrity-checksum dev=254:3 sector=77480 res=0 Signed-off-by: Michael Weiß <michael.weiss@aisec.fraunhofer.de> Signed-off-by: Paul Moore <paul@paul-moore.com> # fix audit.h numbering Signed-off-by: Mike Snitzer <snitzer@redhat.com> |
||
Gabriel Krisman Bertazi
|
130a3c7421 |
fanotify: Emit generic error info for error event
The error info is a record sent to users on FAN_FS_ERROR events documenting the type of error. It also carries an error count, documenting how many errors were observed since the last reporting. Link: https://lore.kernel.org/r/20211025192746.66445-28-krisman@collabora.com Reviewed-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com> Signed-off-by: Jan Kara <jack@suse.cz> |
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Gabriel Krisman Bertazi
|
8d11a4f43e |
fanotify: Reserve UAPI bits for FAN_FS_ERROR
FAN_FS_ERROR allows reporting of event type FS_ERROR to userspace, which is a mechanism to report file system wide problems via fanotify. This commit preallocate userspace visible bits to match the FS_ERROR event. Link: https://lore.kernel.org/r/20211025192746.66445-19-krisman@collabora.com Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com> Signed-off-by: Jan Kara <jack@suse.cz> |
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Jeremy Kerr
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99ce45d5e7 |
mctp: Implement extended addressing
This change allows an extended address struct - struct sockaddr_mctp_ext - to be passed to sendmsg/recvmsg. This allows userspace to specify output ifindex and physical address information (for sendmsg) or receive the input ifindex/physaddr for incoming messages (for recvmsg). This is typically used by userspace for MCTP address discovery and assignment operations. The extended addressing facility is conditional on a new sockopt: MCTP_OPT_ADDR_EXT; userspace must explicitly enable addressing before the kernel will consume/populate the extended address data. Includes a fix for an uninitialised var: Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Srinivas Kandagatla
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36ad9bf1d9
|
ASoC: qdsp6: audioreach: add topology support
Add ASoC topology support in audioreach Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20211026111655.1702-14-srinivas.kandagatla@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org> |
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Luo Jie
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1cf4e9a6fb |
net: phy: add constants for fast retrain related register
Add the constants for 2.5G fast retrain capability in 10G AN control register, fast retrain status and control register and THP bypass register into mdio.h. Signed-off-by: Luo Jie <luoj@codeaurora.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net> |
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David Edmondson
|
e615e35589 |
KVM: x86: On emulation failure, convey the exit reason, etc. to userspace
Should instruction emulation fail, include the VM exit reason, etc. in the emulation_failure data passed to userspace, in order that the VMM can report it as a debugging aid when describing the failure. Suggested-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: David Edmondson <david.edmondson@oracle.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210920103737.2696756-4-david.edmondson@oracle.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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David Edmondson
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a9d496d8e0 |
KVM: x86: Clarify the kvm_run.emulation_failure structure layout
Until more flags for kvm_run.emulation_failure flags are defined, it is undetermined whether new payload elements corresponding to those flags will be additive or alternative. As a hint to userspace that an alternative is possible, wrap the current payload elements in a union. Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: David Edmondson <david.edmondson@oracle.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210920103737.2696756-2-david.edmondson@oracle.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Vincent Mailhol
|
d99755f71a |
can: netlink: add interface for CAN-FD Transmitter Delay Compensation (TDC)
Add the netlink interface for TDC parameters of struct can_tdc_const
and can_tdc.
Contrary to the can_bittiming(_const) structures for which there is
just a single IFLA_CAN(_DATA)_BITTMING(_CONST) entry per structure,
here, we create a nested entry IFLA_CAN_TDC. Within this nested entry,
additional IFLA_CAN_TDC_TDC* entries are added for each of the TDC
parameters of the newly introduced struct can_tdc_const and struct
can_tdc.
For struct can_tdc_const, these are:
IFLA_CAN_TDC_TDCV_MIN
IFLA_CAN_TDC_TDCV_MAX
IFLA_CAN_TDC_TDCO_MIN
IFLA_CAN_TDC_TDCO_MAX
IFLA_CAN_TDC_TDCF_MIN
IFLA_CAN_TDC_TDCF_MAX
For struct can_tdc, these are:
IFLA_CAN_TDC_TDCV
IFLA_CAN_TDC_TDCO
IFLA_CAN_TDC_TDCF
This is done so that changes can be applied in the future to the
structures without breaking the netlink interface.
The TDC netlink logic works as follow:
* CAN_CTRLMODE_FD is not provided:
- if any TDC parameters are provided: error.
- TDC parameters not provided: TDC parameters unchanged.
* CAN_CTRLMODE_FD is provided and is false:
- TDC is deactivated: both the structure and the
CAN_CTRLMODE_TDC_{AUTO,MANUAL} flags are flushed.
* CAN_CTRLMODE_FD provided and is true:
- CAN_CTRLMODE_TDC_{AUTO,MANUAL} and tdc{v,o,f} not provided: call
can_calc_tdco() to automatically decide whether TDC should be
activated and, if so, set CAN_CTRLMODE_TDC_AUTO and uses the
calculated tdco value.
- CAN_CTRLMODE_TDC_AUTO and tdco provided: set
CAN_CTRLMODE_TDC_AUTO and use the provided tdco value. Here,
tdcv is illegal and tdcf is optional.
- CAN_CTRLMODE_TDC_MANUAL and both of tdcv and tdco provided: set
CAN_CTRLMODE_TDC_MANUAL and use the provided tdcv and tdco
value. Here, tdcf is optional.
- CAN_CTRLMODE_TDC_{AUTO,MANUAL} are mutually exclusive. Whenever
one flag is turned on, the other will automatically be turned
off. Providing both returns an error.
- Combination other than the one listed above are illegal and will
return an error.
N.B. above rules mean that whenever CAN_CTRLMODE_FD is provided, the
previous TDC values will be overwritten. The only option to reuse
previous TDC value is to not provide CAN_CTRLMODE_FD.
All the new parameters are defined as u32. This arbitrary choice is
done to mimic the other bittiming values with are also all of type
u32. An u16 would have been sufficient to hold the TDC values.
This patch completes below series (c.f. [1]):
- commit
|
||
|
Vincent Mailhol
|
63dfe07096 |
can: bittiming: allow TDC{V,O} to be zero and add can_tdc_const::tdc{v,o,f}_min
ISO 11898-1 specifies in section 11.3.3 "Transmitter delay
compensation" that "the configuration range for [the] SSP position
shall be at least 0 to 63 minimum time quanta."
Because SSP = TDCV + TDCO, it means that we should allow both TDCV and
TDCO to hold zero value in order to honor SSP's minimum possible
value.
However, current implementation assigned special meaning to TDCV and
TDCO's zero values:
* TDCV = 0 -> TDCV is automatically measured by the transceiver.
* TDCO = 0 -> TDC is off.
In order to allow for those values to really be zero and to maintain
current features, we introduce two new flags:
* CAN_CTRLMODE_TDC_AUTO indicates that the controller support
automatic measurement of TDCV.
* CAN_CTRLMODE_TDC_MANUAL indicates that the controller support
manual configuration of TDCV. N.B.: current implementation failed
to provide an option for the driver to indicate that only manual
mode was supported.
TDC is disabled if both CAN_CTRLMODE_TDC_AUTO and
CAN_CTRLMODE_TDC_MANUAL flags are off, c.f. the helper function
can_tdc_is_enabled() which is also introduced in this patch.
Also, this patch adds three fields: tdcv_min, tdco_min and tdcf_min to
struct can_tdc_const. While we are not convinced that those three
fields could be anything else than zero, we can imagine that some
controllers might specify a lower bound on these. Thus, those minimums
are really added "just in case".
Comments of struct can_tdc and can_tdc_const are updated accordingly.
Finally, the changes are applied to the etas_es58x driver.
Link: https://lore.kernel.org/all/20210918095637.20108-2-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
|
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|
Jakub Kicinski
|
24f7cf9b85 |
Quite a few changes:
* the applicable eth_hw_addr_set() and const hw_addr changes
* various code cleanups/refactorings
* stack usage reductions across the wireless stack
* some unstructured find_ie() -> structured find_element()
changes
* a few more pieces of multi-BSSID support
* some 6 GHz regulatory support
* 6 GHz support in hwsim, for testing userspace code
* Light Communications (LC, 802.11bb) early band definitions
to be able to add a first driver soon
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Merge tag 'mac80211-next-for-net-next-2021-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
Quite a few changes:
* the applicable eth_hw_addr_set() and const hw_addr changes
* various code cleanups/refactorings
* stack usage reductions across the wireless stack
* some unstructured find_ie() -> structured find_element()
changes
* a few more pieces of multi-BSSID support
* some 6 GHz regulatory support
* 6 GHz support in hwsim, for testing userspace code
* Light Communications (LC, 802.11bb) early band definitions
to be able to add a first driver soon
* tag 'mac80211-next-for-net-next-2021-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next: (35 commits)
cfg80211: fix kernel-doc for MBSSID EMA
mac80211: Prevent AP probing during suspend
nl80211: Add LC placeholder band definition to nl80211_band
...
====================
Link: https://lore.kernel.org/r/20211021154953.134849-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
||
|
David S. Miller
|
bdfa75ad70 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Lots of simnple overlapping additions. With a build fix from Stephen Rothwell. Signed-off-by: David S. Miller <davem@davemloft.net> |
||
|
Linus Torvalds
|
6c2c712767 |
Networking fixes for 5.15-rc7, including fixes from netfilter, and can.
Current release - regressions:
- revert "vrf: reset skb conntrack connection on VRF rcv",
there are valid uses for previous behavior
- can: m_can: fix iomap_read_fifo() and iomap_write_fifo()
Current release - new code bugs:
- mlx5: e-switch, return correct error code on group creation failure
Previous releases - regressions:
- sctp: fix transport encap_port update in sctp_vtag_verify
- stmmac: fix E2E delay mechanism (in PTP timestamping)
Previous releases - always broken:
- netfilter: ip6t_rt: fix out-of-bounds read of ipv6_rt_hdr
- netfilter: xt_IDLETIMER: fix out-of-bound read caused by lack of init
- netfilter: ipvs: make global sysctl read-only in non-init netns
- tcp: md5: fix selection between vrf and non-vrf keys
- ipv6: count rx stats on the orig netdev when forwarding
- bridge: mcast: use multicast_membership_interval for IGMPv3
- can:
- j1939: fix UAF for rx_kref of j1939_priv
abort sessions on receiving bad messages
- isotp: fix TX buffer concurrent access in isotp_sendmsg()
fix return error on FC timeout on TX path
- ice: fix re-init of RDMA Tx queues and crash if RDMA was not inited
- hns3: schedule the polling again when allocation fails,
prevent stalls
- drivers: add missing of_node_put() when aborting
for_each_available_child_of_node()
- ptp: fix possible memory leak and UAF in ptp_clock_register()
- e1000e: fix packet loss in burst mode on Tiger Lake and later
- mlx5e: ipsec: fix more checksum offload issues
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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-----END PGP SIGNATURE-----
Merge tag 'net-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter, and can.
We'll have one more fix for a socket accounting regression, it's still
getting polished. Otherwise things look fine.
Current release - regressions:
- revert "vrf: reset skb conntrack connection on VRF rcv", there are
valid uses for previous behavior
- can: m_can: fix iomap_read_fifo() and iomap_write_fifo()
Current release - new code bugs:
- mlx5: e-switch, return correct error code on group creation failure
Previous releases - regressions:
- sctp: fix transport encap_port update in sctp_vtag_verify
- stmmac: fix E2E delay mechanism (in PTP timestamping)
Previous releases - always broken:
- netfilter: ip6t_rt: fix out-of-bounds read of ipv6_rt_hdr
- netfilter: xt_IDLETIMER: fix out-of-bound read caused by lack of
init
- netfilter: ipvs: make global sysctl read-only in non-init netns
- tcp: md5: fix selection between vrf and non-vrf keys
- ipv6: count rx stats on the orig netdev when forwarding
- bridge: mcast: use multicast_membership_interval for IGMPv3
- can:
- j1939: fix UAF for rx_kref of j1939_priv abort sessions on
receiving bad messages
- isotp: fix TX buffer concurrent access in isotp_sendmsg() fix
return error on FC timeout on TX path
- ice: fix re-init of RDMA Tx queues and crash if RDMA was not inited
- hns3: schedule the polling again when allocation fails, prevent
stalls
- drivers: add missing of_node_put() when aborting
for_each_available_child_of_node()
- ptp: fix possible memory leak and UAF in ptp_clock_register()
- e1000e: fix packet loss in burst mode on Tiger Lake and later
- mlx5e: ipsec: fix more checksum offload issues"
* tag 'net-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (75 commits)
usbnet: sanity check for maxpacket
net: enetc: make sure all traffic classes can send large frames
net: enetc: fix ethtool counter name for PM0_TERR
ptp: free 'vclock_index' in ptp_clock_release()
sfc: Don't use netif_info before net_device setup
sfc: Export fibre-specific supported link modes
net/mlx5e: IPsec: Fix work queue entry ethernet segment checksum flags
net/mlx5e: IPsec: Fix a misuse of the software parser's fields
net/mlx5e: Fix vlan data lost during suspend flow
net/mlx5: E-switch, Return correct error code on group creation failure
net/mlx5: Lag, change multipath and bonding to be mutually exclusive
ice: Add missing E810 device ids
igc: Update I226_K device ID
e1000e: Fix packet loss on Tiger Lake and later
e1000e: Separate TGP board type from SPT
ptp: Fix possible memory leak in ptp_clock_register()
net: stmmac: Fix E2E delay mechanism
nfc: st95hf: Make spi remove() callback return zero
net: hns3: disable sriov before unload hclge layer
net: hns3: fix vf reset workqueue cannot exit
...
|
||
Dave Marchevsky
|
aba64c7da9 |
bpf: Add verified_insns to bpf_prog_info and fdinfo
This stat is currently printed in the verifier log and not stored anywhere. To ease consumption of this data, add a field to bpf_prog_aux so it can be exposed via BPF_OBJ_GET_INFO_BY_FD and fdinfo. Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20211020074818.1017682-2-davemarchevsky@fb.com |
||
Hengqi Chen
|
9eeb3aa33a |
bpf: Add bpf_skc_to_unix_sock() helper
The helper is used in tracing programs to cast a socket pointer to a unix_sock pointer. The return value could be NULL if the casting is illegal. Suggested-by: Yonghong Song <yhs@fb.com> Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/20211021134752.1223426-2-hengqi.chen@gmail.com |
||
Geert Uytterhoeven
|
c353d7ce76 |
uapi: Add <linux/map_to_14segment.h>
Add a header file providing translation primitives and tables for the conversion of (ASCII) characters to a 14-segments notation, as used by 14-segment alphanumeric displays. This follows the spirit of include/uapi/linux/map_to_7segment.h. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
||
|
Dave Airlie
|
6f2f7c8330 |
Merge tag 'drm-intel-gt-next-2021-10-21' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
UAPI Changes: - Expose multi-LRC submission interface Similar to the bonded submission interface but simplified. Comes with GuC only implementation for now. See kerneldoc for more details. Userspace changes: https://github.com/intel/media-driver/pull/1252 - Expose logical engine instance to user Needed by the multi-LRC submission interface for GuC Userspace changes: https://github.com/intel/media-driver/pull/1252 Driver Changes: - Fix blank screen booting crashes when CONFIG_CC_OPTIMIZE_FOR_SIZE=y (Hugh) - Add support for multi-LRC submission in the GuC backend (Matt B) - Add extra cache flushing before making pages userspace visible (Matt A, Thomas) - Mark internal GPU object pages dirty so they will be flushed properly (Matt A) - Move remaining debugfs interfaces i915_wedged/i915_forcewake_user into gt (Andi) - Replace the unconditional clflushes with drm_clflush_virt_range() (Ville) - Remove IS_ACTIVE macro completely (Lucas) - Improve kerneldocs for cache_dirty (Matt A) - Add missing includes (Lucas) - Selftest improvements (Matt R, Ran, Matt A) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/YXFmLKoq8Fg9JxSd@jlahtine-mobl.ger.corp.intel.com |
||
Johannes Berg
|
f9d366d420 |
cfg80211: fix kernel-doc for MBSSID EMA
The struct member ema_max_profile_periodicity was listed with the wrong name in the kernel-doc, fix that. Link: https://lore.kernel.org/r/20211021173038.18ec2030c66b.Iac731bb299525940948adad2c41f514b7dd81c47@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
||
Srinivasan Raju
|
63fa042666 |
nl80211: Add LC placeholder band definition to nl80211_band
Define LC band which is a draft under IEEE 802.11bb. Current NL80211_BAND_LC is a placeholder band and will be more defined IEEE 802.11bb progresses. Signed-off-by: Srinivasan Raju <srini.raju@purelifi.com> Link: https://lore.kernel.org/r/20211018100143.7565-2-srini.raju@purelifi.com Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
||
Emmanuel Grumbach
|
1add667da2 |
nl80211: vendor-cmd: intel: add more details for IWL_MVM_VENDOR_CMD_HOST_GET_OWNERSHIP
Explain more the expected flow for this command. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Link: https://lore.kernel.org/r/20211020051147.29297-1-emmanuel.grumbach@intel.com Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
||
Toke Høiland-Jørgensen
|
dfcb63ce1d |
fq_codel: generalise ce_threshold marking for subset of traffic
Commit
|
||
Michael Tretter
|
7aea2c0b48 |
media: allegro: add control to disable encoder buffer
The encoder buffer can have a negative impact on the quality of the encoded video. Add a control to allow user space to disable the encoder buffer per channel if the VCU supports the encoder buffer but the quality is not sufficient. Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> |
||
|
Coly Li
|
0a2b3e3635 |
bcache: reserve never used bits from bkey.high
There sre 3 bits in member high of struct bkey are never used, and no plan to support them in future, - HEADER_SIZE, start at bit 58, length 2 bits - KEY_PINNED, start at bit 55, length 1 bit No any kernel code, or user space tool references or accesses the three bits. Therefore it is possible and feasible to reserve the valuable bits from bkey.high. They can be used in future for other purpose. Signed-off-by: Coly Li <colyli@suse.de> Link: https://lore.kernel.org/r/20211020143812.6403-3-colyli@suse.de Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
|
Jason Gunthorpe
|
71ee1f1275 |
Merge brank 'mlx5_mkey' into rdma.git for-next
A small series to clean up the mlx5 mkey code across the mlx5_core and InfiniBand. * branch 'mlx5_mkey': RDMA/mlx5: Attach ndescs to mlx5_ib_mkey RDMA/mlx5: Move struct mlx5_core_mkey to mlx5_ib RDMA/mlx5: Replace struct mlx5_core_mkey by u32 key RDMA/mlx5: Remove pd from struct mlx5_core_mkey RDMA/mlx5: Remove size from struct mlx5_core_mkey RDMA/mlx5: Remove iova from struct mlx5_core_mkey Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
||
Kajol Jain
|
fec9cc6175 |
perf: Add mem_hops field in perf_mem_data_src structure
Going forward, future generation systems can have more hierarchy
within the node/package level but currently we don't have any data source
encoding field in perf, which can be used to represent this level of data.
Add a new field called 'mem_hops' in the perf_mem_data_src structure
which can be used to represent intra-node/package or inter-node/off-package
details. This field is of size 3 bits where PERF_MEM_HOPS_{NA, 0..6} value
can be used to present different hop levels data.
Also add corresponding macros to define mem_hop field values
and shift value.
Currently we define macro for HOPS_0 which corresponds
to data coming from another core but same node.
For ex: Encodings for mem_hops fields with L2 cache:
L2 - local L2
L2 | REMOTE | HOPS_0 - remote core, same node L2
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20211006140654.298352-3-kjain@linux.ibm.com
|
||
|
Kajol Jain
|
f4c6217f7f |
perf: Add comment about current state of PERF_MEM_LVL_* namespace and remove an extra line
Add a comment about PERF_MEM_LVL_* namespace being depricated
to some extent in favour of added PERF_MEM_{LVLNUM_,REMOTE_,SNOOPX_}
fields.
Remove an extra line present in perf_mem__lvl_scnprintf function.
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20211006140654.298352-2-kjain@linux.ibm.com
|
||
|
Pavel Begunkov
|
6224590d24 |
io_uring: add flag to not fail link after timeout
For some reason non-off IORING_OP_TIMEOUT always fails links, it's pretty inconvenient and unnecessary limits chaining after it to hard linking, which is far from ideal, e.g. doesn't pair well with timeout cancellation. Add a flag forcing it to not fail links on -ETIME. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/17c7ec0fb7a6113cc6be8cdaedcada0ba836ac0e.1633199723.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
|
Greg Kroah-Hartman
|
be24dd486d |
This tag contains habanalabs driver changes for v5.16:
- Add a new uAPI (under the memory ioctl) to request from the driver to export a DMA-BUF object that represents a memory region on the device's DRAM. This is needed to enable peer-to-peer over PCIe between habana device and an RDMA adapter (e.g. mlnx5 or efa rdma adapter). - Add debugfs node to dynamically configure CS timeout. Up until now, it was only configurable through kernel module parameter. - Fetch more comprehensive power information from the firmware. - Always take timestamp when waiting for user interrupt, as the user needs that information to optimize the graph runtime compilation. - Modify user interrupt to look on 64-bit user value as fence, instead of 32-bit. - Bypass reset in case of repeated h/w error event after device reset. This is to prevent endless loop of resets to the device. - Fix several bugs in multi CS completion code. - Fix race condition in fd close/open. - Update to latest firmware headers - Add select CRC32 in kconfig - Small fixes, cosmetics -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEE7TEboABC71LctBLFZR1NuKta54AFAmFtPa4ACgkQZR1NuKta 54A9NAf/QJOc72XhqinNm62RvUoZQehNyDFHcYYBORqIpC+/NsggWwy0VdrDHSeg uXmt6qwRUCc1+tOjOcFD/b6pnwz16mEqQrmVO8XiZOiCvIGcDEapq0HqGfEXwYtv NcQ+k682qqXlza6SCZS9/webJzRuhHwxdFP9HTEYLhKmHoOgBza63F6dreku/fEG mCDVtnMbo8Sa98657Jz3yTElhA+JPsDYO6PycZUTGdPn38mzz5Y5o6Ds8SshIXbr ZQQxHope7NkqcnfYQ8nIoyl7bPLBv2NaqNz216+sBVVy+kHx6f1+FJ4hJM+PHi20 CuOiUgVBRKp2LJ2k0HoITy5XiXe/Cg== =bzK+ -----END PGP SIGNATURE----- Merge tag 'misc-habanalabs-next-2021-10-18' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux into char-misc-next Oded writes: This tag contains habanalabs driver changes for v5.16: - Add a new uAPI (under the memory ioctl) to request from the driver to export a DMA-BUF object that represents a memory region on the device's DRAM. This is needed to enable peer-to-peer over PCIe between habana device and an RDMA adapter (e.g. mlnx5 or efa rdma adapter). - Add debugfs node to dynamically configure CS timeout. Up until now, it was only configurable through kernel module parameter. - Fetch more comprehensive power information from the firmware. - Always take timestamp when waiting for user interrupt, as the user needs that information to optimize the graph runtime compilation. - Modify user interrupt to look on 64-bit user value as fence, instead of 32-bit. - Bypass reset in case of repeated h/w error event after device reset. This is to prevent endless loop of resets to the device. - Fix several bugs in multi CS completion code. - Fix race condition in fd close/open. - Update to latest firmware headers - Add select CRC32 in kconfig - Small fixes, cosmetics * tag 'misc-habanalabs-next-2021-10-18' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux: (25 commits) habanalabs: refactor fence handling in hl_cs_poll_fences habanalabs: context cleanup cosmetics habanalabs: simplify wait for interrupt with timestamp flow habanalabs: initialize hpriv fields before adding new node habanalabs: Unify frequency set/get functionality habanalabs: select CRC32 habanalabs: add support for dma-buf exporter habanalabs: define uAPI to export FD for DMA-BUF habanalabs: fix NULL pointer dereference habanalabs: fix race condition in multi CS completion habanalabs: use only u32 habanalabs: update firmware files habanalabs: bypass reset for continuous h/w error event habanalabs: take timestamp on wait for interrupt habanalabs: prevent race between fd close/open habanalabs: refactor reset log message habanalabs: define soft-reset as inference op habanalabs: fix debugfs device memory MMU VA translation habanalabs: add support for a long interrupt target value habanalabs: remove redundant cs validity checks ... |
||
|
Greg Kroah-Hartman
|
2b74240be3 |
First set of counter subsystem new feature support for the 5.16 cycle
Most interesting element this time is the new chrdev based interface for the counter subsystem. Affects all drivers. Some minor precursor patches. Major parts: * Bring all the sysfs attribute setup into the counter core rather than leaving it to individual drivers. Docs updates accompany these changes. * Move various definitions to a uapi header as now needed from userspace. * Add the chardev interface + extensive documentation and example tool * Add new ABI needed to identify indexes needed for chrdev interface * Implement new interface for the 104-quad-8 * Follow up deals with wrong path for documentation build * Various trivial cleanups and missing feature additions related to this series -----BEGIN PGP SIGNATURE----- iQJFBAABCAAvFiEEbilms4eEBlKRJoGxVIU0mcT0FogFAmFtvWMRHGppYzIzQGtl cm5lbC5vcmcACgkQVIU0mcT0FohYnQ//U58yVdWHoav81bm08xl38Hv3F1O9Gk1E 1pWVb2FNn065q9ES9n0YB1UjECRU/4zvEw+5S+vRqfXlbQiUMVvgUSDWWokzK4Zf rMxRFeYjzS89A8b+VoTLSxOn5wAWUc67v29HMDl1MiQHG6gP9UW7mxBbCIeIU9Et BhNpo32IS9Qu9LeoaPsRz8yEfAyBheLGMfrlJAYy6ENTh4EMdyhzLvVlJXiE+rm7 8KwFU7XVTdIG8JQxJGSs9/CMd6CGhKaBr+B6LG4rnSZTy5k41a1DXpIBQU24nLns ofX+KllTCnuHW5g+rqi05FkNApCN06RCV7FgUKmqOCa4vbXVEF4mFXejkQo+mgIS zHy7lLfkiYVNprpKRKZv5lzj1go8cl4OB0F5odyaiRVh8KeCS9UbYe5fV3vLTiY9 2/yhmW/dbaogM0bFsx8pbWdn84MiBNXT/PvyqJ+I0EfndDZcmrl0mPWQlAS31QPC 3aS2wKyBt2pjTUQIaPq80xPeWAAVCVQ4IxrV5SLT8BUxJc6YwZUDEMAM+/3oEhFC f1/fxqpcctoFEauJXrggiQWpcVbYkbA9RzF+ecUT+3ngABlbf0KOI0+RZnn6GVvJ UVM99Dy0q5utkzFXsHZ4FjXhxiW9LcbvU27KbyrZjKJjOoQAs9Ky5uhjt5DKXh4B KSofs8zHEs8= =AaeD -----END PGP SIGNATURE----- Merge tag 'counter-for-5.16a-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next Jonathan writes: First set of counter subsystem new feature support for the 5.16 cycle Most interesting element this time is the new chrdev based interface for the counter subsystem. Affects all drivers. Some minor precursor patches. Major parts: * Bring all the sysfs attribute setup into the counter core rather than leaving it to individual drivers. Docs updates accompany these changes. * Move various definitions to a uapi header as now needed from userspace. * Add the chardev interface + extensive documentation and example tool * Add new ABI needed to identify indexes needed for chrdev interface * Implement new interface for the 104-quad-8 * Follow up deals with wrong path for documentation build * Various trivial cleanups and missing feature additions related to this series * tag 'counter-for-5.16a-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: docs: counter: Include counter-chrdev kernel-doc to generic-counter.rst counter: fix docum. build problems after filename change counter: microchip-tcb-capture: Tidy up a false kernel-doc /** marking. counter: 104-quad-8: Add IRQ support for the ACCES 104-QUAD-8 counter: 104-quad-8: Replace mutex with spinlock counter: Implement events_queue_size sysfs attribute counter: Implement *_component_id sysfs attributes counter: Implement signalZ_action_component_id sysfs attribute tools/counter: Create Counter tools docs: counter: Document character device interface counter: Add character device interface counter: Move counter enums to uapi header docs: counter: Update to reflect sysfs internalization counter: Update counter.h comments to reflect sysfs internalization counter: Internalize sysfs interface code counter: stm32-timer-cnt: Provide defines for slave mode selection counter: stm32-lptimer-cnt: Provide defines for clock polarities |
||
|
Yonghong Song
|
223f903e9c |
bpf: Rename BTF_KIND_TAG to BTF_KIND_DECL_TAG
Patch set [1] introduced BTF_KIND_TAG to allow tagging declarations for struct/union, struct/union field, var, func and func arguments and these tags will be encoded into dwarf. They are also encoded to btf by llvm for the bpf target. After BTF_KIND_TAG is introduced, we intended to use it for kernel __user attributes. But kernel __user is actually a type attribute. Upstream and internal discussion showed it is not a good idea to mix declaration attribute and type attribute. So we proposed to introduce btf_type_tag as a type attribute and existing btf_tag renamed to btf_decl_tag ([2]). This patch renamed BTF_KIND_TAG to BTF_KIND_DECL_TAG and some other declarations with *_tag to *_decl_tag to make it clear the tag is for declaration. In the future, BTF_KIND_TYPE_TAG might be introduced per [3]. [1] https://lore.kernel.org/bpf/20210914223004.244411-1-yhs@fb.com/ [2] https://reviews.llvm.org/D111588 [3] https://reviews.llvm.org/D111199 Fixes: |
||
Kees Cook
|
47c662486c |
treewide: Replace 0-element memcpy() destinations with flexible arrays
The 0-element arrays that are used as memcpy() destinations are actually flexible arrays. Adjust their structures accordingly so that memcpy() can better reason able their destination size (i.e. they need to be seen as "unknown" length rather than "zero"). In some cases, use of the DECLARE_FLEX_ARRAY() helper is needed when a flexible array is alone in a struct. Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Nilesh Javali <njavali@marvell.com> Cc: Manish Rangankar <mrangankar@marvell.com> Cc: GR-QLogic-Storage-Upstream@marvell.com Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: Phillip Potter <phil@philpotter.co.uk> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Florian Schilhabel <florian.c.schilhabel@googlemail.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Fabio Aiuto <fabioaiuto83@gmail.com> Cc: Ross Schmidt <ross.schm.dev@gmail.com> Cc: Marco Cesati <marcocesati@gmail.com> Cc: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-scsi@vger.kernel.org Cc: linux-staging@lists.linux.dev Signed-off-by: Kees Cook <keescook@chromium.org> |
||
|
Kees Cook
|
fa7845cfd5 |
treewide: Replace open-coded flex arrays in unions
In support of enabling -Warray-bounds and -Wzero-length-bounds and
correctly handling run-time memcpy() bounds checking, replace all
open-coded flexible arrays (i.e. 0-element arrays) in unions with the
DECLARE_FLEX_ARRAY() helper macro.
This fixes warnings such as:
fs/hpfs/anode.c: In function 'hpfs_add_sector_to_btree':
fs/hpfs/anode.c:209:27: warning: array subscript 0 is outside the bounds of an interior zero-length array 'struct bplus_internal_node[0]' [-Wzero-length-bounds]
209 | anode->btree.u.internal[0].down = cpu_to_le32(a);
| ~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from fs/hpfs/hpfs_fn.h:26,
from fs/hpfs/anode.c:10:
fs/hpfs/hpfs.h:412:32: note: while referencing 'internal'
412 | struct bplus_internal_node internal[0]; /* (internal) 2-word entries giving
| ^~~~~~~~
drivers/net/can/usb/etas_es58x/es58x_fd.c: In function 'es58x_fd_tx_can_msg':
drivers/net/can/usb/etas_es58x/es58x_fd.c:360:35: warning: array subscript 65535 is outside the bounds of an interior zero-length array 'u8[0]' {aka 'unsigned char[]'} [-Wzero-length-bounds]
360 | tx_can_msg = (typeof(tx_can_msg))&es58x_fd_urb_cmd->raw_msg[msg_len];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/net/can/usb/etas_es58x/es58x_core.h:22,
from drivers/net/can/usb/etas_es58x/es58x_fd.c:17:
drivers/net/can/usb/etas_es58x/es58x_fd.h:231:6: note: while referencing 'raw_msg'
231 | u8 raw_msg[0];
| ^~~~~~~
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ayush Sawal <ayush.sawal@chelsio.com>
Cc: Vinay Kumar Yadav <vinay.yadav@chelsio.com>
Cc: Rohit Maheshwari <rohitm@chelsio.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Stanislaw Gruszka <stf_xl@wp.pl>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Mordechay Goodstein <mordechay.goodstein@intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Arunachalam Santhanam <arunachalam.santhanam@in.bosch.com>
Cc: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Cc: linux-crypto@vger.kernel.org
Cc: ath10k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Cc: linux-can@vger.kernel.org
Cc: bpf@vger.kernel.org
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # drivers/net/can/usb/etas_es58x/*
Signed-off-by: Kees Cook <keescook@chromium.org>
|
||
|
Kees Cook
|
3080ea5553 |
stddef: Introduce DECLARE_FLEX_ARRAY() helper
There are many places where kernel code wants to have several different
typed trailing flexible arrays. This would normally be done with multiple
flexible arrays in a union, but since GCC and Clang don't (on the surface)
allow this, there have been many open-coded workarounds, usually involving
neighboring 0-element arrays at the end of a structure. For example,
instead of something like this:
struct thing {
...
union {
struct type1 foo[];
struct type2 bar[];
};
};
code works around the compiler with:
struct thing {
...
struct type1 foo[0];
struct type2 bar[];
};
Another case is when a flexible array is wanted as the single member
within a struct (which itself is usually in a union). For example, this
would be worked around as:
union many {
...
struct {
struct type3 baz[0];
};
};
These kinds of work-arounds cause problems with size checks against such
zero-element arrays (for example when building with -Warray-bounds and
-Wzero-length-bounds, and with the coming FORTIFY_SOURCE improvements),
so they must all be converted to "real" flexible arrays, avoiding warnings
like this:
fs/hpfs/anode.c: In function 'hpfs_add_sector_to_btree':
fs/hpfs/anode.c:209:27: warning: array subscript 0 is outside the bounds of an interior zero-length array 'struct bplus_internal_node[0]' [-Wzero-length-bounds]
209 | anode->btree.u.internal[0].down = cpu_to_le32(a);
| ~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from fs/hpfs/hpfs_fn.h:26,
from fs/hpfs/anode.c:10:
fs/hpfs/hpfs.h:412:32: note: while referencing 'internal'
412 | struct bplus_internal_node internal[0]; /* (internal) 2-word entries giving
| ^~~~~~~~
drivers/net/can/usb/etas_es58x/es58x_fd.c: In function 'es58x_fd_tx_can_msg':
drivers/net/can/usb/etas_es58x/es58x_fd.c:360:35: warning: array subscript 65535 is outside the bounds of an interior zero-length array 'u8[0]' {aka 'unsigned char[]'} [-Wzero-length-bounds]
360 | tx_can_msg = (typeof(tx_can_msg))&es58x_fd_urb_cmd->raw_msg[msg_len];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/net/can/usb/etas_es58x/es58x_core.h:22,
from drivers/net/can/usb/etas_es58x/es58x_fd.c:17:
drivers/net/can/usb/etas_es58x/es58x_fd.h:231:6: note: while referencing 'raw_msg'
231 | u8 raw_msg[0];
| ^~~~~~~
However, it _is_ entirely possible to have one or more flexible arrays
in a struct or union: it just has to be in another struct. And since it
cannot be alone in a struct, such a struct must have at least 1 other
named member -- but that member can be zero sized. Wrap all this nonsense
into the new DECLARE_FLEX_ARRAY() in support of having flexible arrays
in unions (or alone in a struct).
As with struct_group(), since this is needed in UAPI headers as well,
implement the core there, with a non-UAPI wrapper.
Additionally update kernel-doc to understand its existence.
https://github.com/KSPP/linux/issues/137
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
|
||
Oliver Upton
|
c68dc1b577 |
KVM: x86: Report host tsc and realtime values in KVM_GET_CLOCK
Handling the migration of TSCs correctly is difficult, in part because Linux does not provide userspace with the ability to retrieve a (TSC, realtime) clock pair for a single instant in time. In lieu of a more convenient facility, KVM can report similar information in the kvm_clock structure. Provide userspace with a host TSC & realtime pair iff the realtime clock is based on the TSC. If userspace provides KVM_SET_CLOCK with a valid realtime value, advance the KVM clock by the amount of elapsed time. Do not step the KVM clock backwards, though, as it is a monotonic oscillator. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Oliver Upton <oupton@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210916181538.968978-5-oupton@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
||
Alexandre Belloni
|
0d20e9fb12 |
rtc: add BSM parameter
BSM or Backup Switch Mode is a common feature on RTCs, allowing to select how the RTC will decide when to switch from its primary power supply to the backup power supply. It is necessary to be able to set it from userspace as there are uses cases where it has to be done dynamically. Supported values are: RTC_BSM_DISABLED: disabled RTC_BSM_DIRECT: switching will happen as soon as Vbackup > Vdd RTC_BSM_LEVEL: switching will happen around a threshold, usually with an hysteresis RTC_BSM_STANDBY: switching will not happen until Vdd > Vbackup, this is useful to ensure the RTC doesn't draw any power until the device is first powered on. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018151933.76865-6-alexandre.belloni@bootlin.com |
||
|
Alexandre Belloni
|
a6d8c6e1a5 |
rtc: add correction parameter
Add a new parameter allowing the get and set the correction using ioctls instead of just sysfs. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018151933.76865-5-alexandre.belloni@bootlin.com |