Commit graph

1,316,932 commits

Author SHA1 Message Date
Justin Iurman
3340654bbf net: lwtunnel: disable BHs when required
[ Upstream commit c03a49f309 ]

In lwtunnel_{output|xmit}(), dev_xmit_recursion() may be called in
preemptible scope for PREEMPT kernels. This patch disables BHs before
calling dev_xmit_recursion(). BHs are re-enabled only at the end, since
we must ensure the same CPU is used for both dev_xmit_recursion_inc()
and dev_xmit_recursion_dec() (and any other recursion levels in some
cases) in order to maintain valid per-cpu counters.

Reported-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Closes: https://lore.kernel.org/netdev/CAADnVQJFWn3dBFJtY+ci6oN1pDFL=TzCmNbRgey7MdYxt_AP2g@mail.gmail.com/
Reported-by: Eduard Zingerman <eddyz87@gmail.com>
Closes: https://lore.kernel.org/netdev/m2h62qwf34.fsf@gmail.com/
Fixes: 986ffb3a57 ("net: lwtunnel: fix recursion loops")
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250416160716.8823-1-justin.iurman@uliege.be
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:01 +02:00
Chenyuan Yang
eeab661803 scsi: ufs: core: Add NULL check in ufshcd_mcq_compl_pending_transfer()
[ Upstream commit 08a966a917 ]

Add a NULL check for the returned hwq pointer by ufshcd_mcq_req_to_hwq().

This is similar to the fix in commit 74736103fb ("scsi: ufs: core: Fix
ufshcd_abort_one racing issue").

Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com>
Link: https://lore.kernel.org/r/20250412195909.315418-1-chenyuan0y@gmail.com
Fixes: ab248643d3 ("scsi: ufs: core: Add error handling for MCQ mode")
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:01 +02:00
Anastasia Kovaleva
29daa63f2c scsi: core: Clear flags for scsi_cmnd that did not complete
[ Upstream commit 54bebe4687 ]

Commands that have not been completed with scsi_done() do not clear the
SCMD_INITIALIZED flag and therefore will not be properly reinitialized.
Thus, the next time the scsi_cmnd structure is used, the command may
fail in scsi_cmd_runtime_exceeded() due to the old jiffies_at_alloc
value:

  kernel: sd 16:0:1:84: [sdts] tag#405 timing out command, waited 720s
  kernel: sd 16:0:1:84: [sdts] tag#405 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=66636s

Clear flags for commands that have not been completed by SCSI.

Fixes: 4abafdc436 ("block: remove the initialize_rq_fn blk_mq_ops method")
Signed-off-by: Anastasia Kovaleva <a.kovaleva@yadro.com>
Link: https://lore.kernel.org/r/20250324084933.15932-2-a.kovaleva@yadro.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:01 +02:00
Henry Martin
fdd2a03561 net/mlx5: Move ttc allocation after switch case to prevent leaks
[ Upstream commit fa8fd31512 ]

Relocate the memory allocation for ttc table after the switch statement
that validates params->ns_type in both mlx5_create_inner_ttc_table() and
mlx5_create_ttc_table(). This ensures memory is only allocated after
confirming valid input, eliminating potential memory leaks when invalid
ns_type cases occur.

Fixes: 137f3d50ad ("net/mlx5: Support matching on l4_type for ttc_table")
Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20250418023814.71789-3-bsdhenrymartin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:01 +02:00
Henry Martin
0b682680b1 net/mlx5: Fix null-ptr-deref in mlx5_create_{inner_,}ttc_table()
[ Upstream commit 91037037ee ]

Add NULL check for mlx5_get_flow_namespace() returns in
mlx5_create_inner_ttc_table() and mlx5_create_ttc_table() to prevent
NULL pointer dereference.

Fixes: 137f3d50ad ("net/mlx5: Support matching on l4_type for ttc_table")
Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Link: https://patch.msgid.link/20250418023814.71789-2-bsdhenrymartin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:01 +02:00
Dongli Zhang
ef258a15e7 vhost-scsi: Fix vhost_scsi_send_status()
[ Upstream commit 58465d8607 ]

Although the support of VIRTIO_F_ANY_LAYOUT + VIRTIO_F_VERSION_1 was
signaled by the commit 664ed90e62 ("vhost/scsi: Set
VIRTIO_F_ANY_LAYOUT + VIRTIO_F_VERSION_1 feature bits"),
vhost_scsi_send_bad_target() still assumes the response in a single
descriptor.

Similar issue in vhost_scsi_send_bad_target() has been fixed in previous
commit. In addition, similar issue for vhost_scsi_complete_cmd_work() has
been fixed by the commit 6dd88fd59d ("vhost-scsi: unbreak any layout for
response").

Fixes: 3ca51662f8 ("vhost-scsi: Add better resource allocation failure handling")
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Message-Id: <20250403063028.16045-4-dongli.zhang@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:01 +02:00
Dongli Zhang
0ac4643bf2 vhost-scsi: Fix vhost_scsi_send_bad_target()
[ Upstream commit b182687135 ]

Although the support of VIRTIO_F_ANY_LAYOUT + VIRTIO_F_VERSION_1 was
signaled by the commit 664ed90e62 ("vhost/scsi: Set
VIRTIO_F_ANY_LAYOUT + VIRTIO_F_VERSION_1 feature bits"),
vhost_scsi_send_bad_target() still assumes the response in a single
descriptor.

In addition, although vhost_scsi_send_bad_target() is used by both I/O
queue and control queue, the response header is always
virtio_scsi_cmd_resp. It is required to use virtio_scsi_ctrl_tmf_resp or
virtio_scsi_ctrl_an_resp for control queue.

Fixes: 664ed90e62 ("vhost/scsi: Set VIRTIO_F_ANY_LAYOUT + VIRTIO_F_VERSION_1 feature bits")
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Message-Id: <20250403063028.16045-3-dongli.zhang@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:01 +02:00
Mike Christie
461c258ba7 vhost-scsi: Add better resource allocation failure handling
[ Upstream commit 3ca51662f8 ]

If we can't allocate mem to map in data for a request or can't find
a tag for a command, we currently drop the command. This leads to the
error handler running to clean it up. Instead of dropping the command
this has us return an error telling the initiator that it queued more
commands than we can handle. The initiator will then reduce how many
commands it will send us and retry later.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
Message-Id: <20241203191705.19431-4-michael.christie@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Stable-dep-of: b182687135 ("vhost-scsi: Fix vhost_scsi_send_bad_target()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:00 +02:00
T.J. Mercier
5d92e582d1 cgroup/cpuset-v1: Add missing support for cpuset_v2_mode
[ Upstream commit 1bf67c8fdb ]

Android has mounted the v1 cpuset controller using filesystem type
"cpuset" (not "cgroup") since 2015 [1], and depends on the resulting
behavior where the controller name is not added as a prefix for cgroupfs
files. [2]

Later, a problem was discovered where cpu hotplug onlining did not
affect the cpuset/cpus files, which Android carried an out-of-tree patch
to address for a while. An attempt was made to upstream this patch, but
the recommendation was to use the "cpuset_v2_mode" mount option
instead. [3]

An effort was made to do so, but this fails with "cgroup: Unknown
parameter 'cpuset_v2_mode'" because commit e1cba4b85d ("cgroup: Add
mount flag to enable cpuset to use v2 behavior in v1 cgroup") did not
update the special cased cpuset_mount(), and only the cgroup (v1)
filesystem type was updated.

Add parameter parsing to the cpuset filesystem type so that
cpuset_v2_mode works like the cgroup filesystem type:

$ mkdir /dev/cpuset
$ mount -t cpuset -ocpuset_v2_mode none /dev/cpuset
$ mount|grep cpuset
none on /dev/cpuset type cgroup (rw,relatime,cpuset,noprefix,cpuset_v2_mode,release_agent=/sbin/cpuset_release_agent)

[1] https://cs.android.com/android/_/android/platform/system/core/+/b769c8d24fd7be96f8968aa4c80b669525b930d3
[2] https://cs.android.com/android/platform/superproject/main/+/main:system/core/libprocessgroup/setup/cgroup_map_write.cpp;drc=2dac5d89a0f024a2d0cc46a80ba4ee13472f1681;l=192
[3] https://lore.kernel.org/lkml/f795f8be-a184-408a-0b5a-553d26061385@redhat.com/T/

Fixes: e1cba4b85d ("cgroup: Add mount flag to enable cpuset to use v2 behavior in v1 cgroup")
Signed-off-by: T.J. Mercier <tjmercier@google.com>
Acked-by: Waiman Long <longman@redhat.com>
Reviewed-by: Kamalesh Babulal <kamalesh.babulal@oracle.com>
Acked-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:00 +02:00
Johannes Thumshirn
9a447f748f btrfs: zoned: return EIO on RAID1 block group write pointer mismatch
[ Upstream commit b0c26f4799 ]

There was a bug report about a NULL pointer dereference in
__btrfs_add_free_space_zoned() that ultimately happens because a
conversion from the default metadata profile DUP to a RAID1 profile on two
disks.

The stack trace has the following signature:

  BTRFS error (device sdc): zoned: write pointer offset mismatch of zones in raid1 profile
  BUG: kernel NULL pointer dereference, address: 0000000000000058
  #PF: supervisor read access in kernel mode
  #PF: error_code(0x0000) - not-present page
  PGD 0 P4D 0
  Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
  RIP: 0010:__btrfs_add_free_space_zoned.isra.0+0x61/0x1a0
  RSP: 0018:ffffa236b6f3f6d0 EFLAGS: 00010246
  RAX: 0000000000000000 RBX: ffff96c8132f3400 RCX: 0000000000000001
  RDX: 0000000010000000 RSI: 0000000000000000 RDI: ffff96c8132f3410
  RBP: 0000000010000000 R08: 0000000000000003 R09: 0000000000000000
  R10: 0000000000000000 R11: 00000000ffffffff R12: 0000000000000000
  R13: ffff96c758f65a40 R14: 0000000000000001 R15: 000011aac0000000
  FS: 00007fdab1cb2900(0000) GS:ffff96e60ca00000(0000) knlGS:0000000000000000
  CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000058 CR3: 00000001a05ae000 CR4: 0000000000350ef0
  Call Trace:
  <TASK>
  ? __die_body.cold+0x19/0x27
  ? page_fault_oops+0x15c/0x2f0
  ? exc_page_fault+0x7e/0x180
  ? asm_exc_page_fault+0x26/0x30
  ? __btrfs_add_free_space_zoned.isra.0+0x61/0x1a0
  btrfs_add_free_space_async_trimmed+0x34/0x40
  btrfs_add_new_free_space+0x107/0x120
  btrfs_make_block_group+0x104/0x2b0
  btrfs_create_chunk+0x977/0xf20
  btrfs_chunk_alloc+0x174/0x510
  ? srso_return_thunk+0x5/0x5f
  btrfs_inc_block_group_ro+0x1b1/0x230
  btrfs_relocate_block_group+0x9e/0x410
  btrfs_relocate_chunk+0x3f/0x130
  btrfs_balance+0x8ac/0x12b0
  ? srso_return_thunk+0x5/0x5f
  ? srso_return_thunk+0x5/0x5f
  ? __kmalloc_cache_noprof+0x14c/0x3e0
  btrfs_ioctl+0x2686/0x2a80
  ? srso_return_thunk+0x5/0x5f
  ? ioctl_has_perm.constprop.0.isra.0+0xd2/0x120
  __x64_sys_ioctl+0x97/0xc0
  do_syscall_64+0x82/0x160
  ? srso_return_thunk+0x5/0x5f
  ? __memcg_slab_free_hook+0x11a/0x170
  ? srso_return_thunk+0x5/0x5f
  ? kmem_cache_free+0x3f0/0x450
  ? srso_return_thunk+0x5/0x5f
  ? srso_return_thunk+0x5/0x5f
  ? syscall_exit_to_user_mode+0x10/0x210
  ? srso_return_thunk+0x5/0x5f
  ? do_syscall_64+0x8e/0x160
  ? sysfs_emit+0xaf/0xc0
  ? srso_return_thunk+0x5/0x5f
  ? srso_return_thunk+0x5/0x5f
  ? seq_read_iter+0x207/0x460
  ? srso_return_thunk+0x5/0x5f
  ? vfs_read+0x29c/0x370
  ? srso_return_thunk+0x5/0x5f
  ? srso_return_thunk+0x5/0x5f
  ? syscall_exit_to_user_mode+0x10/0x210
  ? srso_return_thunk+0x5/0x5f
  ? do_syscall_64+0x8e/0x160
  ? srso_return_thunk+0x5/0x5f
  ? exc_page_fault+0x7e/0x180
  entry_SYSCALL_64_after_hwframe+0x76/0x7e
  RIP: 0033:0x7fdab1e0ca6d
  RSP: 002b:00007ffeb2b60c80 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
  RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdab1e0ca6d
  RDX: 00007ffeb2b60d80 RSI: 00000000c4009420 RDI: 0000000000000003
  RBP: 00007ffeb2b60cd0 R08: 0000000000000000 R09: 0000000000000013
  R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
  R13: 00007ffeb2b6343b R14: 00007ffeb2b60d80 R15: 0000000000000001
  </TASK>
  CR2: 0000000000000058
  ---[ end trace 0000000000000000 ]---

The 1st line is the most interesting here:

 BTRFS error (device sdc): zoned: write pointer offset mismatch of zones in raid1 profile

When a RAID1 block-group is created and a write pointer mismatch between
the disks in the RAID set is detected, btrfs sets the alloc_offset to the
length of the block group marking it as full. Afterwards the code expects
that a balance operation will evacuate the data in this block-group and
repair the problems.

But before this is possible, the new space of this block-group will be
accounted in the free space cache. But in __btrfs_add_free_space_zoned()
it is being checked if it is a initial creation of a block group and if
not a reclaim decision will be made. But the decision if a block-group's
free space accounting is done for an initial creation depends on if the
size of the added free space is the whole length of the block-group and
the allocation offset is 0.

But as btrfs_load_block_group_zone_info() sets the allocation offset to
the zone capacity (i.e. marking the block-group as full) this initial
decision is not met, and the space_info pointer in the 'struct
btrfs_block_group' has not yet been assigned.

Fail creation of the block group and rely on manual user intervention to
re-balance the filesystem.

Afterwards the filesystem can be unmounted, mounted in degraded mode and
the missing device can be removed after a full balance of the filesystem.

Reported-by: 西木野羰基 <yanqiyu01@gmail.com>
Link: https://lore.kernel.org/linux-btrfs/CAB_b4sBhDe3tscz=duVyhc9hNE+gu=B8CrgLO152uMyanR8BEA@mail.gmail.com/
Fixes: b1934cd606 ("btrfs: zoned: handle broken write pointer on zones")
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:00 +02:00
Qu Wenruo
c8a0c38beb btrfs: avoid page_lockend underflow in btrfs_punch_hole_lock_range()
[ Upstream commit bc2dbc4983 ]

[BUG]
When running btrfs/004 with 4K fs block size and 64K page size,
sometimes fsstress workload can take 100% CPU for a while, but not long
enough to trigger a 120s hang warning.

[CAUSE]
When such 100% CPU usage happens, btrfs_punch_hole_lock_range() is
always in the call trace.

One example when this problem happens, the function
btrfs_punch_hole_lock_range() got the following parameters:

  lock_start = 4096, lockend = 20469

Then we calculate @page_lockstart by rounding up lock_start to page
boundary, which is 64K (page size is 64K).

For @page_lockend, we round down the value towards page boundary, which
result 0.  Then since we need to pass an inclusive end to
filemap_range_has_page(), we subtract 1 from the rounded down value,
resulting in (u64)-1.

In the above case, the range is inside the same page, and we do not even
need to call filemap_range_has_page(), not to mention to call it with
(u64)-1 at the end.

This behavior will cause btrfs_punch_hole_lock_range() to busy loop
waiting for irrelevant range to have its pages dropped.

[FIX]
Calculate @page_lockend by just rounding down @lockend, without
decreasing the value by one.  So @page_lockend will no longer overflow.

Then exit early if @page_lockend is no larger than @page_lockstart.
As it means either the range is inside the same page, or the two pages
are adjacent already.

Finally only decrease @page_lockend when calling filemap_range_has_page().

Fixes: 0528476b6a ("btrfs: fix the filemap_range_has_page() call in btrfs_punch_hole_lock_range()")
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:00 +02:00
Johan Hovold
6c1c665805 cpufreq: fix compile-test defaults
[ Upstream commit a374f28700 ]

Commit 3f66425a4f ("cpufreq: Enable COMPILE_TEST on Arm drivers")
enabled compile testing of most Arm CPUFreq drivers but left the
existing default values unchanged so that many drivers are enabled by
default whenever COMPILE_TEST is selected.

This specifically results in the S3C64XX CPUFreq driver being enabled
and initialised during boot of non-S3C64XX platforms with the following
error logged:

	cpufreq: Unable to obtain ARMCLK: -2

Commit d4f610a9ba ("cpufreq: Do not enable by default during compile
testing") recently fixed most of the default values, but two entries
were missed and two could use a more specific default condition.

Fix the default values for drivers that can be compile tested and that
should be enabled by default when not compile testing.

Fixes: 3f66425a4f ("cpufreq: Enable COMPILE_TEST on Arm drivers")
Cc: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:00 +02:00
Krzysztof Kozlowski
ef56c130f6 cpufreq: Do not enable by default during compile testing
[ Upstream commit d4f610a9ba ]

Enabling the compile test should not cause automatic enabling of all
drivers.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Stable-dep-of: a374f28700 ("cpufreq: fix compile-test defaults")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:00 +02:00
Marc Zyngier
dbe413a8cd cpufreq: cppc: Fix invalid return value in .get() callback
[ Upstream commit 2b8e6b5888 ]

Returning a negative error code in a function with an unsigned
return type is a pretty bad idea. It is probably worse when the
justification for the change is "our static analisys tool found it".

Fixes: cf7de25878 ("cppc_cpufreq: Fix possible null pointer dereference")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:59:00 +02:00
Chenyuan Yang
7d002f5914 scsi: ufs: mcq: Add NULL check in ufshcd_mcq_abort()
[ Upstream commit 4c32408506 ]

A race can occur between the MCQ completion path and the abort handler:
once a request completes, __blk_mq_free_request() sets rq->mq_hctx to
NULL, meaning the subsequent ufshcd_mcq_req_to_hwq() call in
ufshcd_mcq_abort() can return a NULL pointer. If this NULL pointer is
dereferenced, the kernel will crash.

Add a NULL check for the returned hwq pointer. If hwq is NULL, log an
error and return FAILED, preventing a potential NULL-pointer
dereference.  As suggested by Bart, the ufshcd_cmd_inflight() check is
removed.

This is similar to the fix in commit 74736103fb ("scsi: ufs: core: Fix
ufshcd_abort_one racing issue").

This is found by our static analysis tool KNighter.

Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com>
Link: https://lore.kernel.org/r/20250410001320.2219341-1-chenyuan0y@gmail.com
Fixes: f1304d4420 ("scsi: ufs: mcq: Added ufshcd_mcq_abort()")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:59 +02:00
Henry Martin
28fbd7b13b cpufreq: scpi: Fix null-ptr-deref in scpi_cpufreq_get_rate()
[ Upstream commit 73b24dc731 ]

cpufreq_cpu_get_raw() can return NULL when the target CPU is not present
in the policy->cpus mask. scpi_cpufreq_get_rate() does not check for
this case, which results in a NULL pointer dereference.

Fixes: 343a8d17fa ("cpufreq: scpi: remove arm_big_little dependency")
Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:59 +02:00
Henry Martin
7ccfadfb25 cpufreq: scmi: Fix null-ptr-deref in scmi_cpufreq_get_rate()
[ Upstream commit 484d3f15cc ]

cpufreq_cpu_get_raw() can return NULL when the target CPU is not present
in the policy->cpus mask. scmi_cpufreq_get_rate() does not check for
this case, which results in a NULL pointer dereference.

Add NULL check after cpufreq_cpu_get_raw() to prevent this issue.

Fixes: 99d6bdf338 ("cpufreq: add support for CPU DVFS based on SCMI message protocol")
Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:59 +02:00
Henry Martin
fbdba5f374 cpufreq: apple-soc: Fix null-ptr-deref in apple_soc_cpufreq_get_rate()
[ Upstream commit 9992649f67 ]

cpufreq_cpu_get_raw() can return NULL when the target CPU is not present
in the policy->cpus mask. apple_soc_cpufreq_get_rate() does not check
for this case, which results in a NULL pointer dereference.

Fixes: 6286bbb405 ("cpufreq: apple-soc: Add new driver to control Apple SoC CPU P-states")
Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:59 +02:00
Arnd Bergmann
16c8aa5de1 dma/contiguous: avoid warning about unused size_bytes
[ Upstream commit d7b98ae522 ]

When building with W=1, this variable is unused for configs with
CONFIG_CMA_SIZE_SEL_PERCENTAGE=y:

kernel/dma/contiguous.c:67:26: error: 'size_bytes' defined but not used [-Werror=unused-const-variable=]

Change this to a macro to avoid the warning.

Fixes: c64be2bb1c ("drivers: add Contiguous Memory Allocator")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20250409151557.3890443-1-arnd@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:59 +02:00
Andre Przywara
40bf7f560c cpufreq: sun50i: prevent out-of-bounds access
[ Upstream commit 14c8a41815 ]

A KASAN enabled kernel reports an out-of-bounds access when handling the
nvmem cell in the sun50i cpufreq driver:
==================================================================
BUG: KASAN: slab-out-of-bounds in sun50i_cpufreq_nvmem_probe+0x180/0x3d4
Read of size 4 at addr ffff000006bf31e0 by task kworker/u16:1/38

This is because the DT specifies the nvmem cell as covering only two
bytes, but we use a u32 pointer to read the value. DTs for other SoCs
indeed specify 4 bytes, so we cannot just shorten the variable to a u16.

Fortunately nvmem_cell_read() allows to return the length of the nvmem
cell, in bytes, so we can use that information to only access the valid
portion of the data.
To cover multiple cell sizes, use memcpy() to copy the information into a
zeroed u32 buffer, then also make sure we always read the data in little
endian fashion, as this is how the data is stored in the SID efuses.

Fixes: 6cc4bcceff ("cpufreq: sun50i: Refactor speed bin decoding")
Reported-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Škrabec <jernej.skrabec@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:59 +02:00
David Howells
aef37505c4 ceph: Fix incorrect flush end position calculation
[ Upstream commit f452a22046 ]

In ceph, in fill_fscrypt_truncate(), the end flush position is calculated
by:

                loff_t lend = orig_pos + CEPH_FSCRYPT_BLOCK_SHIFT - 1;

but that's using the block shift not the block size.

Fix this to use the block size instead.

Fixes: 5c64737d25 ("ceph: add truncate size handling support for fscrypt")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:58 +02:00
Nathan Chancellor
984830d902 lib/Kconfig.ubsan: Remove 'default UBSAN' from UBSAN_INTEGER_WRAP
commit cdc2e1d9d9 upstream.

CONFIG_UBSAN_INTEGER_WRAP is 'default UBSAN', which is problematic for a
couple of reasons.

The first is that this sanitizer is under active development on the
compiler side to come up with a solution that is maintainable on the
compiler side and usable on the kernel side. As a result of this, there
are many warnings when the sanitizer is enabled that have no clear path
to resolution yet but users may see them and report them in the meantime.

The second is that this option was renamed from
CONFIG_UBSAN_SIGNED_WRAP, meaning that if a configuration has
CONFIG_UBSAN=y but CONFIG_UBSAN_SIGNED_WRAP=n and it is upgraded via
olddefconfig (common in non-interactive scenarios such as CI),
CONFIG_UBSAN_INTEGER_WRAP will be silently enabled again.

Remove 'default UBSAN' from CONFIG_UBSAN_INTEGER_WRAP until it is ready
for regular usage and testing from a broader community than the folks
actively working on the feature.

Cc: stable@vger.kernel.org
Fixes: 557f8c582a ("ubsan: Reintroduce signed overflow sanitizer")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20250414-drop-default-ubsan-integer-wrap-v1-1-392522551d6b@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
[nathan: Fix conflict due to lack of rename from ed2b548f10 in stable]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:58 +02:00
Alex Deucher
b26ac56370 drm/amd/display/dml2: use vzalloc rather than kzalloc
[ Upstream commit cd9e6d6fdd ]

The structures are large and they do not require contiguous
memory so use vzalloc.

Fixes: 70839da636 ("drm/amd/display: Add new DCN401 sources")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4126
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 20c50a9a79)
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:58 +02:00
Rohit Chavan
50ec8c2428 drm/amd/display: Fix unnecessary cast warnings from checkpatch
[ Upstream commit c299cb6eaf ]

This patch addresses warnings produced by the checkpatch script
related to unnecessary casts that could potentially hide bugs.

The specific warnings are as follows:
- Warning at drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_wrapper.c:16
- Warning at drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_wrapper.c:20
- Warning at drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_wrapper.c:30

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rohit Chavan <roheetchavan@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Stable-dep-of: cd9e6d6fdd ("drm/amd/display/dml2: use vzalloc rather than kzalloc")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:58 +02:00
Matt Roper
0fdb612c20 drm/xe/bmg: Add one additional PCI ID
[ Upstream commit 5529df92b8 ]

One additional BMG PCI ID has been added to the spec; make sure our
driver recognizes devices with this ID properly.

Bspec: 68090
Cc: stable@vger.kernel.org # v6.12+
Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20250325224709.4073080-2-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit cca9734ebe)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:58 +02:00
Jonathan Currier
c187aaa9e7 net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads
[ Upstream commit fbb429ddff ]

Fix niu_try_msix() to not cause a fatal trap on sparc systems.

Set PCI_DEV_FLAGS_MSIX_TOUCH_ENTRY_DATA_FIRST on the struct pci_dev to
work around a bug in the hardware or firmware.

For each vector entry in the msix table, niu chips will cause a fatal
trap if any registers in that entry are read before that entries'
ENTRY_DATA register is written to. Testing indicates writes to other
registers are not sufficient to prevent the fatal trap, however the value
does not appear to matter. This only needs to happen once after power up,
so simply rebooting into a kernel lacking this fix will NOT cause the
trap.

NON-RESUMABLE ERROR: Reporting on cpu 64
NON-RESUMABLE ERROR: TPC [0x00000000005f6900] <msix_prepare_msi_desc+0x90/0xa0>
NON-RESUMABLE ERROR: RAW [4010000000000016:00000e37f93e32ff:0000000202000080:ffffffffffffffff
NON-RESUMABLE ERROR:      0000000800000000:0000000000000000:0000000000000000:0000000000000000]
NON-RESUMABLE ERROR: handle [0x4010000000000016] stick [0x00000e37f93e32ff]
NON-RESUMABLE ERROR: type [precise nonresumable]
NON-RESUMABLE ERROR: attrs [0x02000080] < ASI sp-faulted priv >
NON-RESUMABLE ERROR: raddr [0xffffffffffffffff]
NON-RESUMABLE ERROR: insn effective address [0x000000c50020000c]
NON-RESUMABLE ERROR: size [0x8]
NON-RESUMABLE ERROR: asi [0x00]
CPU: 64 UID: 0 PID: 745 Comm: kworker/64:1 Not tainted 6.11.5 #63
Workqueue: events work_for_cpu_fn
TSTATE: 0000000011001602 TPC: 00000000005f6900 TNPC: 00000000005f6904 Y: 00000000    Not tainted
TPC: <msix_prepare_msi_desc+0x90/0xa0>
g0: 00000000000002e9 g1: 000000000000000c g2: 000000c50020000c g3: 0000000000000100
g4: ffff8000470307c0 g5: ffff800fec5be000 g6: ffff800047a08000 g7: 0000000000000000
o0: ffff800014feb000 o1: ffff800047a0b620 o2: 0000000000000011 o3: ffff800047a0b620
o4: 0000000000000080 o5: 0000000000000011 sp: ffff800047a0ad51 ret_pc: 00000000005f7128
RPC: <__pci_enable_msix_range+0x3cc/0x460>
l0: 000000000000000d l1: 000000000000c01f l2: ffff800014feb0a8 l3: 0000000000000020
l4: 000000000000c000 l5: 0000000000000001 l6: 0000000020000000 l7: ffff800047a0b734
i0: ffff800014feb000 i1: ffff800047a0b730 i2: 0000000000000001 i3: 000000000000000d
i4: 0000000000000000 i5: 0000000000000000 i6: ffff800047a0ae81 i7: 00000000101888b0
I7: <niu_try_msix.constprop.0+0xc0/0x130 [niu]>
Call Trace:
[<00000000101888b0>] niu_try_msix.constprop.0+0xc0/0x130 [niu]
[<000000001018f840>] niu_get_invariants+0x183c/0x207c [niu]
[<00000000101902fc>] niu_pci_init_one+0x27c/0x2fc [niu]
[<00000000005ef3e4>] local_pci_probe+0x28/0x74
[<0000000000469240>] work_for_cpu_fn+0x8/0x1c
[<000000000046b008>] process_scheduled_works+0x144/0x210
[<000000000046b518>] worker_thread+0x13c/0x1c0
[<00000000004710e0>] kthread+0xb8/0xc8
[<00000000004060c8>] ret_from_fork+0x1c/0x2c
[<0000000000000000>] 0x0
Kernel panic - not syncing: Non-resumable error.

Fixes: 7d5ec3d361 ("PCI/MSI: Mask all unused MSI-X entries")
Signed-off-by: Jonathan Currier <dullfire@yahoo.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20241117234843.19236-3-dullfire@yahoo.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:58 +02:00
Peter Griffin
869749e481 scsi: ufs: exynos: Disable iocc if dma-coherent property isn't set
[ Upstream commit f92bb74368 ]

If dma-coherent property isn't set then descriptors are non-cacheable
and the iocc shareability bits should be disabled. Without this UFS can
end up in an incompatible configuration and suffer from random cache
related stability issues.

Suggested-by: Bart Van Assche <bvanassche@acm.org>
Fixes: cc52e15397 ("scsi: ufs: ufs-exynos: Support ExynosAuto v9 UFS")
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20250319-exynos-ufs-stability-fixes-v2-3-96722cc2ba1b@linaro.org
Cc: Chanho Park <chanho61.park@samsung.com>
Cc: stable@vger.kernel.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:58 +02:00
Peter Griffin
56f3327cdd scsi: ufs: exynos: Move UFS shareability value to drvdata
[ Upstream commit 68f5ef7eeb ]

gs101 I/O coherency shareability bits differ from exynosauto SoC. To
support both SoCs move this info the SoC drvdata.

Currently both the value and mask are the same for both gs101 and
exynosauto, thus we use the same value.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20250319-exynos-ufs-stability-fixes-v2-2-96722cc2ba1b@linaro.org
Fixes: d11e0a318d ("scsi: ufs: exynos: Add support for Tensor gs101 SoC")
Cc: stable@vger.kernel.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:57 +02:00
Peter Griffin
661380d982 scsi: ufs: exynos: Add gs101_ufs_drv_init() hook and enable WriteBooster
[ Upstream commit 9cc4a4a576 ]

Factor out the common code into a new exynos_ufs_shareability() function
and provide a dedicated gs101_drv_init() hook.

This allows us to enable WriteBooster capability (UFSHCD_CAP_WB_EN) in a
way that doesn't effect other SoCs supported in this driver.

WriteBooster improves write speeds by enabling a pseudo SLC cache. Using
the 'fio seqwrite' test we can achieve speeds of 945MB/s with this
feature enabled (until the cache is exhausted) before dropping back to
~260MB/s (which are the speeds we see without the WriteBooster feature
enabled).

Assuming the UFSHCD_CAP_WB_EN capability is set by the host then
WriteBooster can also be enabled and disabled via sysfs so it is
possible for the system to only enable it when extra write performance
is required.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20241031150033.3440894-10-peter.griffin@linaro.org
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Stable-dep-of: 68f5ef7eeb ("scsi: ufs: exynos: Move UFS shareability value to drvdata")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:57 +02:00
Tudor Ambarus
0e76176edc scsi: ufs: exynos: Remove superfluous function parameter
[ Upstream commit afd613ca2c ]

The pointer to device can be obtained from ufs->hba->dev, remove
superfluous function parameter.

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20241031150033.3440894-3-peter.griffin@linaro.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Stable-dep-of: 68f5ef7eeb ("scsi: ufs: exynos: Move UFS shareability value to drvdata")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:57 +02:00
Tudor Ambarus
ffcdfaecd4 scsi: ufs: exynos: Remove empty drv_init method
[ Upstream commit 07c2a73750 ]

Remove empty method. When the method is not set, the call is not made,
saving a few cycles.

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20241031150033.3440894-2-peter.griffin@linaro.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Stable-dep-of: 68f5ef7eeb ("scsi: ufs: exynos: Move UFS shareability value to drvdata")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:57 +02:00
Namjae Jeon
1aec4d14cf ksmbd: fix use-after-free in __smb2_lease_break_noti()
[ Upstream commit 21a4e47578 ]

Move tcp_transport free to ksmbd_conn_free. If ksmbd connection is
referenced when ksmbd server thread terminates, It will not be freed,
but conn->tcp_transport is freed. __smb2_lease_break_noti can be performed
asynchronously when the connection is disconnected. __smb2_lease_break_noti
calls ksmbd_conn_write, which can cause use-after-free
when conn->ksmbd_transport is already freed.

Cc: stable@vger.kernel.org
Reported-by: Norbert Szetei <norbert@doyensec.com>
Tested-by: Norbert Szetei <norbert@doyensec.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:57 +02:00
Namjae Jeon
0fc403192d ksmbd: browse interfaces list on FSCTL_QUERY_INTERFACE_INFO IOCTL
[ Upstream commit b2d99376c5 ]

ksmbd.mount will give each interfaces list and bind_interfaces_only flags
to ksmbd server. Previously, the interfaces list was sent only
when bind_interfaces_only was enabled.
ksmbd server browse only interfaces list given from ksmbd.conf on
FSCTL_QUERY_INTERFACE_INFO IOCTL.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Stable-dep-of: 21a4e47578 ("ksmbd: fix use-after-free in __smb2_lease_break_noti()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:57 +02:00
Namjae Jeon
8d2c1acc88 ksmbd: add netdev-up/down event debug print
[ Upstream commit 5f3f274e2c ]

Add netdev-up/down event debug print to find what netdev is connected or
disconnected.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Stable-dep-of: 21a4e47578 ("ksmbd: fix use-after-free in __smb2_lease_break_noti()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:56 +02:00
Namjae Jeon
0772765ac8 ksmbd: use __GFP_RETRY_MAYFAIL
[ Upstream commit 0066f623bc ]

Prefer to report ENOMEM rather than incur the oom for allocations in
ksmbd. __GFP_NORETRY could not achieve that, It would fail the allocations
just too easily. __GFP_RETRY_MAYFAIL will keep retrying the allocation
until there is no more progress and fail the allocation instead go OOM
and let the caller to deal with it.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Stable-dep-of: 21a4e47578 ("ksmbd: fix use-after-free in __smb2_lease_break_noti()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:56 +02:00
Andrzej Kacprowski
60cb4dfcf7 accel/ivpu: Fix the NPU's DPU frequency calculation
[ Upstream commit 6c2b75404d ]

Fix the frequency returned to the user space by
the DRM_IVPU_PARAM_CORE_CLOCK_RATE GET_PARAM IOCTL.
The kernel driver returned CPU frequency for MTL and bare
PLL frequency for LNL - this was inconsistent and incorrect
for both platforms. With this fix the driver returns maximum
frequency of the NPU data processing unit (DPU) for all HW
generations. This is what user space always expected.

Also do not set CPU frequency in boot params - the firmware
does not use frequency passed from the driver, it was only
used by the early pre-production firmware.
With that we can remove CPU frequency calculation code.

Show NPU frequency in FREQ_CHANGE interrupt when frequency
tracking is enabled.

Fixes: 8a27ad81f7 ("accel/ivpu: Split IP and buttress code")
Cc: stable@vger.kernel.org # v6.11+
Signed-off-by: Andrzej Kacprowski <Andrzej.Kacprowski@intel.com>
Signed-off-by: Maciej Falkowski <maciej.falkowski@linux.intel.com>
Reviewed-by: Jeff Hugo <jeff.hugo@oss.qualcomm.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://lore.kernel.org/r/20250401155912.4049340-2-maciej.falkowski@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:56 +02:00
Jacek Lawrynowicz
27fcf64781 accel/ivpu: Add auto selection logic for job scheduler
[ Upstream commit 436b67d693 ]

Add ivpu_fw_sched_mode_select() function that can select scheduling mode
based on HW and FW versions. This prepares for a switch to HWS on
selected platforms.

Reviewed-by: Karol Wachowski <karol.wachowski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240930195322.461209-17-jacek.lawrynowicz@linux.intel.com
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Stable-dep-of: 6c2b75404d ("accel/ivpu: Fix the NPU's DPU frequency calculation")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:56 +02:00
Jonathan Currier
35ba7b2d4d PCI/MSI: Add an option to write MSIX ENTRY_DATA before any reads
[ Upstream commit cf761e3dac ]

Commit 7d5ec3d361 ("PCI/MSI: Mask all unused MSI-X entries") introduced a
readl() from ENTRY_VECTOR_CTRL before the writel() to ENTRY_DATA.

This is correct, however some hardware, like the Sun Neptune chips, the NIU
module, will cause an error and/or fatal trap if any MSIX table entry is
read before the corresponding ENTRY_DATA field is written to.

Add an optional early writel() in msix_prepare_msi_desc().

Fixes: 7d5ec3d361 ("PCI/MSI: Mask all unused MSI-X entries")
Signed-off-by: Jonathan Currier <dullfire@yahoo.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20241117234843.19236-2-dullfire@yahoo.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:56 +02:00
Thomas Gleixner
46d3575209 PCI/MSI: Handle the NOMASK flag correctly for all PCI/MSI backends
[ Upstream commit 3ece3e8e59 ]

The conversion of the XEN specific global variable pci_msi_ignore_mask to a
MSI domain flag, missed the facts that:

    1) Legacy architectures do not provide a interrupt domain
    2) Parent MSI domains do not necessarily have a domain info attached

Both cases result in an unconditional NULL pointer dereference. This was
unfortunatly missed in review and testing revealed it late.

Cure this by using the existing pci_msi_domain_supports() helper, which
handles all possible cases correctly.

Fixes: c3164d2e0d ("PCI/MSI: Convert pci_msi_ignore_mask to per MSI domain flag")
Reported-by: Daniel Gomez <da.gomez@kernel.org>
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Borislav Petkov <bp@alien8.de>
Tested-by: Daniel Gomez <da.gomez@kernel.org>
Link: https://lore.kernel.org/all/87iknwyp2o.ffs@tglx
Closes: https://lore.kernel.org/all/qn7fzggcj6qe6r6gdbwcz23pzdz2jx64aldccmsuheabhmjgrt@tawf5nfwuvw7
Stable-dep-of: cf761e3dac ("PCI/MSI: Add an option to write MSIX ENTRY_DATA before any reads")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:56 +02:00
Roger Pau Monne
aad1246896 PCI/MSI: Convert pci_msi_ignore_mask to per MSI domain flag
[ Upstream commit c3164d2e0d ]

Setting pci_msi_ignore_mask inhibits the toggling of the mask bit for both
MSI and MSI-X entries globally, regardless of the IRQ chip they are using.
Only Xen sets the pci_msi_ignore_mask when routing physical interrupts over
event channels, to prevent PCI code from attempting to toggle the maskbit,
as it's Xen that controls the bit.

However, the pci_msi_ignore_mask being global will affect devices that use
MSI interrupts but are not routing those interrupts over event channels
(not using the Xen pIRQ chip).  One example is devices behind a VMD PCI
bridge.  In that scenario the VMD bridge configures MSI(-X) using the
normal IRQ chip (the pIRQ one in the Xen case), and devices behind the
bridge configure the MSI entries using indexes into the VMD bridge MSI
table.  The VMD bridge then demultiplexes such interrupts and delivers to
the destination device(s).  Having pci_msi_ignore_mask set in that scenario
prevents (un)masking of MSI entries for devices behind the VMD bridge.

Move the signaling of no entry masking into the MSI domain flags, as that
allows setting it on a per-domain basis.  Set it for the Xen MSI domain
that uses the pIRQ chip, while leaving it unset for the rest of the
cases.

Remove pci_msi_ignore_mask at once, since it was only used by Xen code, and
with Xen dropping usage the variable is unneeded.

This fixes using devices behind a VMD bridge on Xen PV hardware domains.

Albeit Devices behind a VMD bridge are not known to Xen, that doesn't mean
Linux cannot use them.  By inhibiting the usage of
VMD_FEAT_CAN_BYPASS_MSI_REMAP and the removal of the pci_msi_ignore_mask
bodge devices behind a VMD bridge do work fine when use from a Linux Xen
hardware domain.  That's the whole point of the series.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Juergen Gross <jgross@suse.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Message-ID: <20250219092059.90850-4-roger.pau@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Stable-dep-of: cf761e3dac ("PCI/MSI: Add an option to write MSIX ENTRY_DATA before any reads")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:56 +02:00
Tudor Ambarus
8fe536f102 scsi: ufs: qcom: fix dev reference leaked through of_qcom_ice_get
[ Upstream commit ded40f32b5 ]

The driver leaks the device reference taken with
of_find_device_by_node(). Fix the leak by using devm_of_qcom_ice_get().

Fixes: 56541c7c44 ("scsi: ufs: ufs-qcom: Switch to the new ICE API")
Cc: stable@vger.kernel.org
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com> # SCSI
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20250117-qcom-ice-fix-dev-leak-v2-3-1ffa5b6884cb@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:55 +02:00
Zijun Hu
a122b3b1f5 of: resolver: Fix device node refcount leakage in of_resolve_phandles()
[ Upstream commit a46a080563 ]

In of_resolve_phandles(), refcount of device node @local_fixups will be
increased if the for_each_child_of_node() exits early, but nowhere to
decrease the refcount, so cause refcount leakage for the node.

Fix by using __free() on @local_fixups.

Fixes: da56d04c80 ("of/resolver: Switch to new local fixups format.")
Cc: stable@vger.kernel.org
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250209-of_irq_fix-v2-9-93e3a2659aa7@quicinc.com
[robh: Use __free() instead]
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:55 +02:00
Rob Herring (Arm)
05576e1304 of: resolver: Simplify of_resolve_phandles() using __free()
[ Upstream commit 5275e8b529 ]

Use the __free() cleanup to simplify of_resolve_phandles() and remove
all the goto's.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Stable-dep-of: a46a080563 ("of: resolver: Fix device node refcount leakage in of_resolve_phandles()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:55 +02:00
Siddharth Vadapalli
56ddf0023b arm64: dts: ti: k3-j784s4-j742s2-main-common: Fix serdes_ln_ctrl reg-masks
[ Upstream commit 38e7f9092e ]

Commit under Fixes added the 'idle-states' property for SERDES4 lane muxes
without defining the corresponding register offsets and masks for it in the
'mux-reg-masks' property within the 'serdes_ln_ctrl' node.

Fix this.

Fixes: 7287d423f1 ("arm64: dts: ti: k3-j784s4-main: Add system controller and SERDES lane mux")
Cc: stable@vger.kernel.org
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Link: https://lore.kernel.org/r/20250228053850.506028-1-s-vadapalli@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:55 +02:00
Manorit Chawdhry
107b05f540 arm64: dts: ti: Refactor J784s4 SoC files to a common file
[ Upstream commit 9cc161a450 ]

Refactor J784s4 SoC files to a common file which uses the
superset device to allow reuse in j742s2-evm which uses the subset part.

Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
Reviewed-by: Beleswar Padhi <b-padhi@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
Link: https://lore.kernel.org/r/20240902-b4-upstream-j742s2-v6-1-6a7aa2736797@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Stable-dep-of: 38e7f9092e ("arm64: dts: ti: k3-j784s4-j742s2-main-common: Fix serdes_ln_ctrl reg-masks")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:55 +02:00
Sergiu Cuciurean
bde067b82a iio: adc: ad7768-1: Fix conversion result sign
[ Upstream commit 8236644f5e ]

The ad7768-1 ADC output code is two's complement, meaning that the voltage
conversion result is a signed value.. Since the value is a 24 bit one,
stored in a 32 bit variable, the sign should be extended in order to get
the correct representation.

Also the channel description has been updated to signed representation,
to match the ADC specifications.

Fixes: a5f8c7da3d ("iio: adc: Add AD7768-1 ADC basic support")
Reviewed-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com>
Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Cc: <Stable@vger.kernel.org>
Link: https://patch.msgid.link/505994d3b71c2aa38ba714d909a68e021f12124c.1741268122.git.Jonathan.Santos@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:55 +02:00
Jonathan Cameron
68565706b5 iio: adc: ad7768-1: Move setting of val a bit later to avoid unnecessary return value check
[ Upstream commit 0af1c801a1 ]

The data used is all in local variables so there is no advantage
in setting *val = ret with the direct mode claim held.
Move it later to after error check.

Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250217141630.897334-13-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Stable-dep-of: 8236644f5e ("iio: adc: ad7768-1: Fix conversion result sign")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:54 +02:00
Marek Behún
8f229785c5 net: dsa: mv88e6xxx: fix VTU methods for 6320 family
[ Upstream commit f9a457722c ]

The VTU registers of the 6320 family use the 6352 semantics, not 6185.
Fix it.

Fixes: b8fee95710 ("net: dsa: mv88e6xxx: add VLAN Get Next support")
Signed-off-by: Marek Behún <kabel@kernel.org>
Cc: <stable@vger.kernel.org> # 5.15.x
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250317173250.28780-2-kabel@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:54 +02:00
Ming Lei
2afa5ea7c4 block: make sure ->nr_integrity_segments is cloned in blk_rq_prep_clone
[ Upstream commit fc0e982b8a ]

Make sure ->nr_integrity_segments is cloned in blk_rq_prep_clone(),
otherwise requests cloned by device-mapper multipath will not have the
proper nr_integrity_segments values set, then BUG() is hit from
sg_alloc_table_chained().

Fixes: b0fd271d5f ("block: add request clone interface (v2)")
Cc: stable@vger.kernel.org
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250310115453.2271109-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:54 +02:00
Christoph Hellwig
ed7535b141 block: remove the ioprio field from struct request
[ Upstream commit 6975c1a486 ]

The request ioprio is only initialized from the first attached bio,
so requests without a bio already never set it.  Directly use the
bio field instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20241112170050.1612998-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Stable-dep-of: fc0e982b8a ("block: make sure ->nr_integrity_segments is cloned in blk_rq_prep_clone")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02 07:58:54 +02:00