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netfilter.
Current release - regressions:
- smc: fix af_ops of child socket pointing to released memory
- wifi: ath9k: fix usage of driver-private space in tx_info
Previous releases - regressions:
- ipv6: fix panic when forwarding a pkt with no in6 dev
- sctp: use the correct skb for security_sctp_assoc_request
- smc: fix NULL pointer dereference in smc_pnet_find_ib()
- sched: fix initialization order when updating chain 0 head
- phy: don't defer probe forever if PHY IRQ provider is missing
- dsa: revert "net: dsa: setup master before ports"
- dsa: felix: fix tagging protocol changes with multiple CPU ports
- eth: ice:
- fix use-after-free when freeing @rx_cpu_rmap
- revert "iavf: fix deadlock occurrence during resetting VF interface"
- eth: lan966x: stop processing the MAC entry is port is wrong
Previous releases - always broken:
- sched
- flower: fix parsing of ethertype following VLAN header
- taprio: check if socket flags are valid
- nfc: add flush_workqueue to prevent uaf
- veth: ensure eth header is in skb's linear part
- eth: stmmac: fix altr_tse_pcs function when using a fixed-link
- eth: macb: restart tx only if queue pointer is lagging
- eth: macvlan: fix leaking skb in source mode with nodst option
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from wireless and netfilter.
Current release - regressions:
- smc: fix af_ops of child socket pointing to released memory
- wifi: ath9k: fix usage of driver-private space in tx_info
Previous releases - regressions:
- ipv6: fix panic when forwarding a pkt with no in6 dev
- sctp: use the correct skb for security_sctp_assoc_request
- smc: fix NULL pointer dereference in smc_pnet_find_ib()
- sched: fix initialization order when updating chain 0 head
- phy: don't defer probe forever if PHY IRQ provider is missing
- dsa: revert "net: dsa: setup master before ports"
- dsa: felix: fix tagging protocol changes with multiple CPU ports
- eth: ice:
- fix use-after-free when freeing @rx_cpu_rmap
- revert "iavf: fix deadlock occurrence during resetting VF
interface"
- eth: lan966x: stop processing the MAC entry is port is wrong
Previous releases - always broken:
- sched:
- flower: fix parsing of ethertype following VLAN header
- taprio: check if socket flags are valid
- nfc: add flush_workqueue to prevent uaf
- veth: ensure eth header is in skb's linear part
- eth: stmmac: fix altr_tse_pcs function when using a fixed-link
- eth: macb: restart tx only if queue pointer is lagging
- eth: macvlan: fix leaking skb in source mode with nodst option"
* tag 'net-5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (52 commits)
net: bcmgenet: Revert "Use stronger register read/writes to assure ordering"
rtnetlink: Fix handling of disabled L3 stats in RTM_GETSTATS replies
net: dsa: felix: fix tagging protocol changes with multiple CPU ports
tun: annotate access to queue->trans_start
nfc: nci: add flush_workqueue to prevent uaf
net: dsa: realtek: don't parse compatible string for RTL8366S
net: dsa: realtek: fix Kconfig to assure consistent driver linkage
net: ftgmac100: access hardware register after clock ready
Revert "net: dsa: setup master before ports"
macvlan: Fix leaking skb in source mode with nodst option
netfilter: nf_tables: nft_parse_register can return a negative value
net: lan966x: Stop processing the MAC entry is port is wrong.
net: lan966x: Fix when a port's upper is changed.
net: lan966x: Fix IGMP snooping when frames have vlan tag
net: lan966x: Update lan966x_ptp_get_nominal_value
sctp: Initialize daddr on peeled off socket
net/smc: Fix af_ops of child socket pointing to released memory
net/smc: Fix NULL pointer dereference in smc_pnet_find_ib()
net/smc: use memcpy instead of snprintf to avoid out of bounds read
net: macb: Restart tx only if queue pointer is lagging
...
This became an unexpectedly large pull request due to various
regression fixes in the previous kernels.
The majority of fixes are a series of patches to address the
regression at probe errors in devres'ed drivers, while there are
yet more fixes for the x86 SG allocations and for USB-audio
buffer management. In addition, a few HD-audio quirks and other
small fixes are found.
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Merge tag 'sound-5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This became an unexpectedly large pull request due to various
regression fixes in the previous kernels.
The majority of fixes are a series of patches to address the
regression at probe errors in devres'ed drivers, while there are yet
more fixes for the x86 SG allocations and for USB-audio buffer
management. In addition, a few HD-audio quirks and other small fixes
are found"
* tag 'sound-5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (52 commits)
ALSA: usb-audio: Limit max buffer and period sizes per time
ALSA: memalloc: Add fallback SG-buffer allocations for x86
ALSA: nm256: Don't call card private_free at probe error path
ALSA: mtpav: Don't call card private_free at probe error path
ALSA: rme9652: Fix the missing snd_card_free() call at probe error
ALSA: hdspm: Fix the missing snd_card_free() call at probe error
ALSA: hdsp: Fix the missing snd_card_free() call at probe error
ALSA: oxygen: Fix the missing snd_card_free() call at probe error
ALSA: lx6464es: Fix the missing snd_card_free() call at probe error
ALSA: cmipci: Fix the missing snd_card_free() call at probe error
ALSA: aw2: Fix the missing snd_card_free() call at probe error
ALSA: als300: Fix the missing snd_card_free() call at probe error
ALSA: lola: Fix the missing snd_card_free() call at probe error
ALSA: bt87x: Fix the missing snd_card_free() call at probe error
ALSA: sis7019: Fix the missing error handling
ALSA: intel_hdmi: Fix the missing snd_card_free() call at probe error
ALSA: via82xx: Fix the missing snd_card_free() call at probe error
ALSA: sonicvibes: Fix the missing snd_card_free() call at probe error
ALSA: rme96: Fix the missing snd_card_free() call at probe error
ALSA: rme32: Fix the missing snd_card_free() call at probe error
...
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Merge tag 'for-5.18-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A few more code and warning fixes.
There's one feature ioctl removal patch slated for 5.18 that did not
make it to the main pull request. It's just a one-liner and the ioctl
has a v2 that's in use for a long time, no point to postpone it to
5.19.
Late update:
- remove balance v1 ioctl, superseded by v2 in 2012
Fixes:
- add back cgroup attribution for compressed writes
- add super block write start/end annotations to asynchronous balance
- fix root reference count on an error handling path
- in zoned mode, activate zone at the chunk allocation time to avoid
ENOSPC due to timing issues
- fix delayed allocation accounting for direct IO
Warning fixes:
- simplify assertion condition in zoned check
- remove an unused variable"
* tag 'for-5.18-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix btrfs_submit_compressed_write cgroup attribution
btrfs: fix root ref counts in error handling in btrfs_get_root_ref
btrfs: zoned: activate block group only for extent allocation
btrfs: return allocated block group from do_chunk_alloc()
btrfs: mark resumed async balance as writing
btrfs: remove support of balance v1 ioctl
btrfs: release correct delalloc amount in direct IO write path
btrfs: remove unused variable in btrfs_{start,write}_dirty_block_groups()
btrfs: zoned: remove redundant condition in btrfs_run_delalloc_range
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Merge tag 'fscache-fixes-20220413' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull fscache fixes from David Howells:
"Here's a collection of fscache and cachefiles fixes and misc small
cleanups. The two main fixes are:
- Add a missing unmark of the inode in-use mark in an error path.
- Fix a KASAN slab-out-of-bounds error when setting the xattr on a
cachefiles volume due to the wrong length being given to memcpy().
In addition, there's the removal of an unused parameter, removal of an
unused Kconfig option, conditionalising a bit of procfs-related stuff
and some doc fixes"
* tag 'fscache-fixes-20220413' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
fscache: remove FSCACHE_OLD_API Kconfig option
fscache: Use wrapper fscache_set_cache_state() directly when relinquishing
fscache: Move fscache_cookies_seq_ops specific code under CONFIG_PROC_FS
fscache: Remove the cookie parameter from fscache_clear_page_bits()
docs: filesystems: caching/backend-api.rst: fix an object withdrawn API
docs: filesystems: caching/backend-api.rst: correct two relinquish APIs use
cachefiles: Fix KASAN slab-out-of-bounds in cachefiles_set_volume_xattr
cachefiles: unmark inode in use in error path
When poll request is timed out, it is removed from the poll list,
but not completed, so the request is leaked, and never get chance
to complete.
Fix the issue by ending it in timeout handler.
Fixes: 0a593fbbc2 ("null_blk: poll queue support")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20220413084836.1571995-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Unit of bio->bi_iter.bi_size is bytes, but unit of offset/size
is sector.
Fix the above issue in checking offset/size in bio_trim().
Fixes: e83502ca5f ("block: fix argument type of bio_trim()")
Cc: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20220414084443.1736850-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The 'perf bench numa' testcase fails on systems with more than 1K CPUs.
Testcase: perf bench numa mem -p 1 -t 3 -P 512 -s 100 -zZ0qcm --thp 1
Snippet of code:
<<>>
perf: bench/numa.c:302: bind_to_node: Assertion `!(ret)' failed.
Aborted (core dumped)
<<>>
bind_to_node() uses "sched_getaffinity" to save the original cpumask and
this call is returning EINVAL ((invalid argument).
This happens because the default mask size in glibc is 1024. To
overcome this 1024 CPUs mask size limitation of cpu_set_t, change the
mask size using the CPU_*_S macros ie, use CPU_ALLOC to allocate
cpumask, CPU_ALLOC_SIZE for size.
Apart from fixing this for "orig_mask", apply same logic to "mask" as
well which is used to setaffinity so that mask size is large enough to
represent number of possible CPU's in the system.
sched_getaffinity is used in one more place in perf numa bench. It is in
"bind_to_cpu" function. Apply the same logic there also. Though
currently no failure is reported from there, it is ideal to change
getaffinity to work with such system configurations having CPU's more
than default mask size supported by glibc.
Also fix "sched_setaffinity" to use mask size which is large enough to
represent number of possible CPU's in the system.
Fixed all places where "bind_cpumask" which is part of "struct
thread_data" is used such that bind_cpumask works in all configuration.
Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20220412164059.42654-3-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Perf numa bench test fails with error:
Testcase:
./perf bench numa mem -p 2 -t 1 -P 1024 -C 0,8 -M 1,0 -s 20 -zZq --thp 1 --no-data_rand_walk
Failure snippet:
<<>>
Running 'numa/mem' benchmark:
# Running main, "perf bench numa numa-mem -p 2 -t 1 -P 1024 -C 0,8 -M 1,0 -s 20 -zZq --thp 1 --no-data_rand_walk"
perf: bench/numa.c:333: bind_to_cpumask: Assertion `!(ret)' failed.
<<>>
The Testcases uses CPU's 0 and 8. In function "parse_setup_cpu_list",
There is check to see if cpu number is greater than max cpu's possible
in the system ie via "if (bind_cpu_0 >= g->p.nr_cpus || bind_cpu_1 >=
g->p.nr_cpus) {".
But it could happen that system has say 48 CPU's, but only number of
online CPU's is 0-7. Other CPU's are offlined. Since "g->p.nr_cpus" is
48, so function will go ahead and set bit for CPU 8 also in cpumask (
td->bind_cpumask).
bind_to_cpumask function is called to set affinity using
sched_setaffinity and the cpumask. Since the CPU8 is not present, set
affinity will fail here with EINVAL.
Fix this issue by adding a check to make sure that, CPU's provided in
the input argument values are online before proceeding further and skip
the test. For this, include new helper function "is_cpu_online" in
"tools/perf/util/header.c".
Since "BIT(x)" definition will get included from header.h, remove
that from bench/numa.c
Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20220412164059.42654-2-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Per-thread mode doesn't have specific CPUs for events, add checks for
this case.
Minor fix to a pr_debug by Ian Rogers <irogers@google.com> to avoid an
out of bound array access.
Fixes: 7954f71689 ("perf record: Introduce thread affinity and mmap masks")
Reported-by: Ian Rogers <irogers@google.com>
Signed-off-by: Alexey Bayduraev <alexey.bayduraev@gmail.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220414014642.3308206-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
We need to take mask into account in the set/get_multiple() callbacks.
Use bitmap_replace() instead of bitmap_copy().
Fixes: cb8c474e79 ("gpio: sim: new testing module")
Cc: stable@vger.kernel.org
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
When L3 stats are disabled, rtnl_offload_xstats_get_size_stats() returns
size of 0, which is supposed to be an indication that the corresponding
attribute should not be emitted. However, instead, the current code
reserves a 0-byte attribute.
The reason this does not show up as a citation on a kasan kernel is that
netdev_offload_xstats_get(), which is supposed to fill in the data, never
ends up getting called, because rtnl_offload_xstats_get_stats() notices
that the stats are not actually used and skips the call.
Thus a zero-length IFLA_OFFLOAD_XSTATS_L3_STATS attribute ends up in a
response, confusing the userspace.
Fix by skipping the L3-stats related block in rtnl_offload_xstats_fill().
Fixes: 0e7788fd76 ("net: rtnetlink: Add UAPI for obtaining L3 offload xstats")
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/591b58e7623edc3eb66dd1fcfa8c8f133d090974.1649794741.git.petrm@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
When the device tree has 2 CPU ports defined, a single one is active
(has any dp->cpu_dp pointers point to it). Yet the second one is still a
CPU port, and DSA still calls ->change_tag_protocol on it.
On the NXP LS1028A, the CPU ports are ports 4 and 5. Port 4 is the
active CPU port and port 5 is inactive.
After the following commands:
# Initial setting
cat /sys/class/net/eno2/dsa/tagging
ocelot
echo ocelot-8021q > /sys/class/net/eno2/dsa/tagging
echo ocelot > /sys/class/net/eno2/dsa/tagging
traffic is now broken, because the driver has moved the NPI port from
port 4 to port 5, unbeknown to DSA.
The problem can be avoided by detecting that the second CPU port is
unused, and not doing anything for it. Further rework will be needed
when proper support for multiple CPU ports is added.
Treat this as a bug and prepare current kernels to work in single-CPU
mode with multiple-CPU DT blobs.
Fixes: adb3dccf09 ("net: dsa: felix: convert to the new .change_tag_protocol DSA API")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220412172209.2531865-1-vladimir.oltean@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Commit 5337824f4d ("net: annotate accesses to queue->trans_start")
introduced a new helper, txq_trans_cond_update, to update
queue->trans_start using WRITE_ONCE. One snippet in drivers/net/tun.c
was missed, as it was introduced roughly at the same time.
Fixes: 5337824f4d ("net: annotate accesses to queue->trans_start")
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220412135852.466386-1-atenart@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
On umount, cifs_sb->tlink_tree might contain entries that do not represent
a valid tcon.
Check the tcon for error before we dereference it.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Reported-by: Xiaoli Feng <xifeng@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
When we looked into FIO performance with swiotlb enabled in VM, we found
swiotlb_bounce() is always called one more time than expected for each DMA
read request.
It turns out that the bounce buffer is copied to original DMA buffer twice
after the completion of a DMA request (one is done by in
dma_direct_sync_single_for_cpu(), the other by swiotlb_tbl_unmap_single()).
But the content in bounce buffer actually doesn't change between the two
rounds of copy. So, one round of copy is redundant.
Pass DMA_ATTR_SKIP_CPU_SYNC flag to swiotlb_tbl_unmap_single() to
skip the memory copy in it.
This fix increases FIO 64KB sequential read throughput in a guest with
swiotlb=force by 5.6%.
Fixes: 55897af630 ("dma-direct: merge swiotlb_dma_ops into the dma_direct code")
Reported-by: Wang Zhaoyang1 <zhaoyang1.wang@intel.com>
Reported-by: Gao Liang <liang.gao@intel.com>
Signed-off-by: Chao Gao <chao.gao@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
[why]
dcn316's dtbclk is from non_ss clock source.
no compensation required here.
Reviewed-by: Chris Park <Chris.Park@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Enabling gfxoff quirk results in perfectly usable graphical user
interface on MacBook Pro (15-inch, 2019) with Radeon Pro Vega 20 4 GB.
Without the quirk, X server is completely unusable as every few seconds
there is gpu reset due to ring gfx timeout.
Signed-off-by: Tomasz Moń <desowin@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
DP/HDMI audio on AMD PRO VII stops working after S3:
[ 149.450391] amdgpu 0000:63:00.0: amdgpu: MODE1 reset
[ 149.450395] amdgpu 0000:63:00.0: amdgpu: GPU mode1 reset
[ 149.450494] amdgpu 0000:63:00.0: amdgpu: GPU psp mode1 reset
[ 149.983693] snd_hda_intel 0000:63:00.1: refused to change power state from D0 to D3hot
[ 150.003439] amdgpu 0000:63:00.0: refused to change power state from D0 to D3hot
...
[ 155.432975] snd_hda_intel 0000:63:00.1: CORB reset timeout#2, CORBRP = 65535
The offending commit is daf8de0874 ("drm/amdgpu: always reset the asic in
suspend (v2)"). Commit 34452ac303 ("drm/amdgpu: don't use BACO for
reset in S3 ") doesn't help, so the issue is something different.
Assuming that to make HDA resume to D0 fully realized, it needs to be
successfully put to D3 first. And this guesswork proves working, by
moving amdgpu_asic_reset() to noirq callback, so it's called after HDA
function is in D3.
Fixes: daf8de0874 ("drm/amdgpu: always reset the asic in suspend (v2)")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Drop the trailing vcn.
Fixes: afc2f27605 ("drm/amdgpu/vcn: add vcn support for vcn 3.1.2")
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
"Pre-multiplied" is the default pixel blend mode for KMS/DRM, as
documented in supported_modes of drm_plane_create_blend_mode_property():
https://cgit.freedesktop.org/drm/drm-misc/tree/drivers/gpu/drm/drm_blend.c
In this mode, both 'pixel alpha' and 'plane alpha' participate in the
calculation, as described by the pixel blend mode formula in KMS/DRM
documentation:
out.rgb = plane_alpha * fg.rgb +
(1 - (plane_alpha * fg.alpha)) * bg.rgb
Considering the blend config mechanisms we have in the driver so far,
the alpha mode that better fits this blend mode is the
_PER_PIXEL_ALPHA_COMBINED_GLOBAL_GAIN, where the value for global_gain
is the plane alpha (global_alpha).
With this change, alpha property stops to be ignored. It also addresses
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1734
v2:
* keep the 8-bit value for global_alpha_value (Nicholas)
* correct the logical ordering for combined global gain (Nicholas)
* apply to dcn10 too (Nicholas)
Signed-off-by: Melissa Wen <mwen@igalia.com>
Tested-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
perf_evsel::sample_id is an xyarray which can cause a segfault when
accessed beyond its size. e.g.
# perf record -e intel_pt// -C 1 sleep 1
Segmentation fault (core dumped)
#
That is happening because a dummy event is opened to capture text poke
events accross all CPUs, however the mmap logic is allocating according
to the number of user_requested_cpus.
In general, perf sometimes uses the evsel cpus to open events, and
sometimes the evlist user_requested_cpus. However, it is not necessary
to determine which case is which because the opened event file
descriptors are also in an xyarray, the size of whch can be used
to correctly allocate the size of the sample_id xyarray, because there
is one ID per file descriptor.
Note, in the affected code path, perf_evsel fd array is subsequently
used to get the file descriptor for the mmap, so it makes sense for the
xyarrays to be the same size there.
Fixes: d1a177595b ("libperf: Adopt perf_evlist__mmap()/munmap() from tools/perf")
Fixes: 246eba8e90 ("perf tools: Add support for PERF_RECORD_TEXT_POKE")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: stable@vger.kernel.org # 5.5+
Link: https://lore.kernel.org/r/20220413114232.26914-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
hashmap__new() returns ERR_PTR(-ENOMEM) when it fails, so we should use
IS_ERR() to check it in error handling path.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220413093302.2538128-1-lv.ruyi@zte.com.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Currently the setting of the 'cpu' member of struct cpuhp_cpu_state in
cpuhp_create() is too late as it is used earlier in _cpu_up().
If kzalloc_node() in __smpboot_create_thread() fails then the rollback will
be done with st->cpu==0 causing CPU0 to be erroneously set to be dying,
causing the scheduler to get mightily confused and throw its toys out of
the pram.
However the cpu number is actually available directly, so simply remove
the 'cpu' member and avoid the problem in the first place.
Fixes: 2ea46c6fc9 ("cpumask/hotplug: Fix cpu_dying() state tracking")
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20220411152233.474129-2-steven.price@arm.com
get_pf_vdev() tries to check if a PF is a VFIO PF by looking at the driver:
if (pci_dev_driver(physfn) != pci_dev_driver(vdev->pdev)) {
However now that we have multiple VF and PF drivers this is no longer
reliable.
This means that security tests realted to vf_token can be skipped by
mixing and matching different VFIO PCI drivers.
Instead of trying to use the driver core to find the PF devices maintain a
linked list of all PF vfio_pci_core_device's that we have called
pci_enable_sriov() on.
When registering a VF just search the list to see if the PF is present and
record the match permanently in the struct. PCI core locking prevents a PF
from passing pci_disable_sriov() while VF drivers are attached so the VFIO
owned PF becomes a static property of the VF.
In common cases where vfio does not own the PF the global list remains
empty and the VF's pointer is statically NULL.
This also fixes a lockdep splat from recursive locking of the
vfio_group::device_lock between vfio_device_get_from_name() and
vfio_device_get_from_dev(). If the VF and PF share the same group this
would deadlock.
Fixes: ff53edf6d6 ("vfio/pci: Split the pci_driver code out of vfio_pci_core.c")
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/0-v3-876570980634+f2e8-vfio_vf_token_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Commit 0fbb4d93b3 ("dm: add dm_submit_bio_remap interface") changed
the alloc_io() function to delay the initialization of struct dm_io's
orig_bio member, leaving it NULL until after the dm_io and associated
user submitted bio is processed by __split_and_process_bio(). This
change causes a NULL pointer dereference in dm_zone_map_bio() when the
original user bio is inspected to detect the need for zone append
command emulation.
Fix this NULL pointer by updating dm_zone_map_bio() to not access
->orig_bio when the same info can be accessed from the clone of the
->orig_bio _before_ any ->map processing. Save off the bio_op() and
bio_sectors() for the clone and then use the saved orig_bio_details as
needed.
Fixes: 0fbb4d93b3 ("dm: add dm_submit_bio_remap interface")
Reported-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Mixing sched_clock() and ktime_get_ns() usage will give bad results.
Switch hst_select_path() from using sched_clock() to ktime_get_ns().
Also rename path_service_time()'s 'sched_now' variable to 'now'.
Fixes: 2613eab119 ("dm mpath: add Historical Service Time Path Selector")
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Smatch printed a warning:
arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error:
__memcpy() 'dctx->buf' too small (16 vs u32max)
It's caused because Smatch marks 'link_len' as untrusted since it comes
from sscanf(). Add a check to ensure that 'link_len' is not larger than
the size of the 'link_str' buffer.
Fixes: c69c1b6eae ("cifs: implement CIFSParseMFSymlink()")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
The check in flush_smp_call_function_queue() for callbacks that are sent
to offline CPUs currently checks whether the queue is empty.
However, flush_smp_call_function_queue() has just deleted all the
callbacks from the queue and moved all the entries into a local list.
This checks would only be positive if some callbacks were added in the
short time after llist_del_all() was called. This does not seem to be
the intention of this check.
Change the check to look at the local list to which the entries were
moved instead of the queue from which all the callbacks were just
removed.
Fixes: 8d056c48e4 ("CPU hotplug, smp: flush any pending IPI callbacks before CPU offline")
Signed-off-by: Nadav Amit <namit@vmware.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20220319072015.1495036-1-namit@vmware.com
It is possible to set up dm-integrity in such a way that the
"tag_size" parameter is less than the actual digest size. In this
situation, a part of the digest beyond tag_size is ignored.
In this case, dm-integrity would write beyond the end of the
ic->recalc_tags array and corrupt memory. The corruption happened in
integrity_recalc->integrity_sector_checksum->crypto_shash_final.
Fix this corruption by increasing the tags array so that it has enough
padding at the end to accomodate the loop in integrity_recalc() being
able to write a full digest size for the last member of the tags
array.
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
We should not return an error code in req->result in
io_poll_check_events(), because it may get mangled and returned as
success. Just return the error code directly, the callers will fail the
request or proceed accordingly.
Fixes: 6bf9c47a39 ("io_uring: defer file assignment")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/5f03514ee33324dc811fb93df84aee0f695fb044.1649862516.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This switch is not even supported, but if someone were to actually put
this compatible string "realtek,rtl8366s" in their device tree, they
would be greeted with a kernel panic because the probe function would
dereference NULL. So let's just remove it.
Link: https://lore.kernel.org/all/CACRpkdYdKZs0WExXc3=0yPNOwP+oOV60HRz7SRoGjZvYHaT=1g@mail.gmail.com/
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
The kernel test robot reported a build failure:
or1k-linux-ld: drivers/net/dsa/realtek/realtek-smi.o:(.rodata+0x16c): undefined reference to `rtl8366rb_variant'
... with the following build configuration:
CONFIG_NET_DSA_REALTEK=y
CONFIG_NET_DSA_REALTEK_SMI=y
CONFIG_NET_DSA_REALTEK_RTL8365MB=y
CONFIG_NET_DSA_REALTEK_RTL8366RB=m
The problem here is that the realtek-smi interface driver gets built-in,
while the rtl8366rb switch subdriver gets built as a module, hence the
symbol rtl8366rb_variant is not reachable when defining the OF device
table in the interface driver.
The Kconfig dependencies don't help in this scenario because they just
say that the subdriver(s) depend on at least one interface driver. In
fact, the subdrivers don't depend on the interface drivers at all, and
can even be built even in their absence. Somewhat strangely, the
interface drivers can also be built in the absence of any subdriver,
BUT, if a subdriver IS enabled, then it must be reachable according to
the linkage of the interface driver: effectively what the IS_REACHABLE()
macro achieves. If it is not reachable, the above kind of linker error
will be observed.
Rather than papering over the above build error by simply using
IS_REACHABLE(), we can do a little better and admit that it is actually
the interface drivers that have a dependency on the subdrivers. So this
patch does exactly that. Specifically, we ensure that:
1. The interface drivers' Kconfig symbols must have a value no greater
than the value of any subdriver Kconfig symbols.
2. The subdrivers should by default enable both interface drivers, since
most users probably want at least one of them; those interface
drivers can be explicitly disabled however.
What this doesn't do is prevent a user from building only a subdriver,
without any interface driver. To that end, add an additional line of
help in the menu to guide users in the right direction.
Link: https://lore.kernel.org/all/202204110757.XIafvVnj-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Fixes: aac9400106 ("net: dsa: realtek: add new mdio interface for drivers")
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
First set of fixes for v5.18. Maintainers file updates, two
compilation warning fixes, one revert for ath11k and smaller fixes to
drivers and stack. All the usual stuff.
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Merge tag 'wireless-2022-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Kalle Valo says:
====================
wireless fixes for v5.18
First set of fixes for v5.18. Maintainers file updates, two
compilation warning fixes, one revert for ath11k and smaller fixes to
drivers and stack. All the usual stuff.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Some implementations were returning type `unsigned long`, while others
that fell back to get_cycles() were implicitly returning a `cycles_t` or
an untyped constant int literal. That makes for weird and confusing
code, and basically all code in the kernel already handled it like it
was an `unsigned long`. I recently tried to handle it as the largest
type it could be, a `cycles_t`, but doing so doesn't really help with
much.
Instead let's just make random_get_entropy() return an unsigned long all
the time. This also matches the commonly used `arch_get_random_long()`
function, so now RDRAND and RDTSC return the same sized integer, which
means one can fallback to the other more gracefully.
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Theodore Ts'o <tytso@mit.edu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Rather than failing entirely if a copy_to_user() fails at some point,
instead we should return a partial read for the amount that succeeded
prior, unless none succeeded at all, in which case we return -EFAULT as
before.
This makes it consistent with other reader interfaces. For example, the
following snippet for /dev/zero outputs "4" followed by "1":
int fd;
void *x = mmap(NULL, 4096, PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
assert(x != MAP_FAILED);
fd = open("/dev/zero", O_RDONLY);
assert(fd >= 0);
printf("%zd\n", read(fd, x, 4));
printf("%zd\n", read(fd, x + 4095, 4));
close(fd);
This brings that same standard behavior to the various RNG reader
interfaces.
While we're at it, we can streamline the loop logic a little bit.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jann Horn <jannh@google.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
AST2600 MAC register 0x58 is writable only when the MAC clock is
enabled. Usually, the MAC clock is enabled by the bootloader so
register 0x58 is set normally when the bootloader is involved. To make
ast2600 ftgmac100 work without the bootloader, postpone the register
write until the clock is ready.
Fixes: 137d23cea1 ("net: ftgmac100: Fix Aspeed ast2600 TX hang issue")
Signed-off-by: Dylan Hung <dylan_hung@aspeedtech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 11fd667dac.
dsa_slave_change_mtu() updates the MTU of the DSA master and of the
associated CPU port, but only if it detects a change to the master MTU.
The blamed commit in the Fixes: tag below addressed a regression where
dsa_slave_change_mtu() would return early and not do anything due to
ds->ops->port_change_mtu() not being implemented.
However, that commit also had the effect that the master MTU got set up
to the correct value by dsa_master_setup(), but the associated CPU port's
MTU did not get updated. This causes breakage for drivers that rely on
the ->port_change_mtu() DSA call to account for the tagging overhead on
the CPU port, and don't set up the initial MTU during the setup phase.
Things actually worked before because they were in a fragile equilibrium
where dsa_slave_change_mtu() was called before dsa_master_setup() was.
So dsa_slave_change_mtu() could actually detect a change and update the
CPU port MTU too.
Restore the code to the way things used to work by reverting the reorder
of dsa_tree_setup_master() and dsa_tree_setup_ports(). That change did
not have a concrete motivation going for it anyway, it just looked
better.
Fixes: 066dfc4290 ("Revert "net: dsa: stop updating master MTU from master.c"")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The MACVLAN receive handler clones skbs to all matching source MACVLAN
interfaces, before it passes the packet along to match on destination
based MACVLANs.
When using the MACVLAN nodst mode, passing the packet to destination based
MACVLANs is omitted and the handler returns with RX_HANDLER_CONSUMED.
However, the passed skb is not freed, leaking for any packet processed
with the nodst option.
Properly free the skb when consuming packets to fix that leak.
Fixes: 427f0c8c19 ("macvlan: Add nodst option to macvlan type source")
Signed-off-by: Martin Willi <martin@strongswan.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Otherwise power_supply_get_battery_info always returns -ENODEV
on devices that do not have a static battery, even when a simple
battery is found.
Fixes: c8aee3f41c ("power: supply: Static data for Samsung batteries")
Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Two of the batteries were missing charging restart voltages,
meaning they can drain if the algorithm relies on restarting
charging at this voltage. Fix it up.
Fixes: c8aee3f41c ("power: supply: Static data for Samsung batteries")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Fix incorrect debug message:
Attempting to add event pmu 'intel_pt' with '' that may result in
non-fatal errors
which always appears with perf record -vv and intel_pt e.g.
perf record -vv -e intel_pt//u uname
The message is incorrect because there will never be non-fatal errors.
Suppress the message if the PMU is 'selectable' i.e. meant to be
selected directly as an event.
Fixes: 4ac22b484d ("perf parse-events: Make add PMU verbose output clearer")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20220411061758.2458417-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
In the previous fix, we increased the max buffer bytes from 1MB to 4MB
so that we can use bigger buffers for the modern HiFi devices with
higher rates, more channels and wider formats. OTOH, extending this
has a concern that too big buffer is allowed for the lower rates, less
channels and narrower formats; when an application tries to allocate
as big buffer as possible, it'll lead to unexpectedly too huge size.
Also, we had a problem about the inconsistent max buffer and period
bytes for the implicit feedback mode when both streams have different
channels. This was fixed by the (relatively complex) patch to reduce
the max buffer and period bytes accordingly.
This is an alternative fix for those, a patch to kill two birds with
one stone (*): instead of increasing the max buffer bytes blindly and
applying the reduction per channels, we simply use the hw constraints
for the buffer and period "time". Meanwhile the max buffer and period
bytes are set unlimited instead.
Since the inconsistency of buffer (and period) bytes comes from the
difference of the channels in the tied streams, as long as we care
only about the buffer (and period) time, it doesn't matter; the buffer
time is same for different channels, although we still allow higher
buffer size. Similarly, this will allow more buffer bytes for HiFi
devices while it also keeps the reasonable size for the legacy
devices, too.
As of this patch, the max period and buffer time are set to 1 and 2
seconds, which should be large enough for all possible use cases.
(*) No animals were harmed in the making of this patch.
Fixes: 98c27add5d ("ALSA: usb-audio: Cap upper limits of buffer/period bytes for implicit fb")
Fixes: fee2ec8cce ("ALSA: usb-audio: Increase max buffer size")
Link: https://lore.kernel.org/r/20220412130740.18933-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The recent change for memory allocator replaced the SG-buffer handling
helper for x86 with the standard non-contiguous page handler. This
works for most cases, but there is a corner case I obviously
overlooked, namely, the fallback of non-contiguous handler without
IOMMU. When the system runs without IOMMU, the core handler tries to
use the continuous pages with a single SGL entry. It works nicely for
most cases, but when the system memory gets fragmented, the large
allocation may fail frequently.
Ideally the non-contig handler could deal with the proper SG pages,
it's cumbersome to extend for now. As a workaround, here we add new
types for (minimalistic) SG allocations, instead, so that the
allocator falls back to those types automatically when the allocation
with the standard API failed.
BTW, one better (but pretty minor) improvement from the previous
SG-buffer code is that this provides the proper mmap support without
the PCM's page fault handling.
Fixes: 2c95b92ecd ("ALSA: memalloc: Unify x86 SG-buffer handling (take#3)")
BugLink: https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/2272
BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1198248
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220413054808.7547-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
