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Author SHA1 Message Date
Linus Torvalds
ce93692d68 Change since last update:
- Fix unexpected EIOs under memory pressure caused by recent
    incorrect error propagation logic
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Merge tag 'erofs-for-6.19-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

Pull erofs fix from Gao Xiang:
 "Junbeom reported that synchronous reads could hit unintended EIOs
  under memory pressure due to incorrect error propagation in
  z_erofs_decompress_queue(), where earlier physical clusters in the
  same decompression queue may be served for another readahead.

  This addresses the issue by decompressing each physical cluster
  independently as long as disk I/Os succeed, rather than being impacted
  by the error status of previous physical clusters in the same queue.

  Summary:

   - Fix unexpected EIOs under memory pressure caused by recent
     incorrect error propagation logic"

* tag 'erofs-for-6.19-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: fix unexpected EIO under memory pressure
2025-12-24 09:15:30 -08:00
Zilin Guan
cb6d5aa9c0 cifs: Fix memory and information leak in smb3_reconfigure()
In smb3_reconfigure(), if smb3_sync_session_ctx_passwords() fails, the
function returns immediately without freeing and erasing the newly
allocated new_password and new_password2. This causes both a memory leak
and a potential information leak.

Fix this by calling kfree_sensitive() on both password buffers before
returning in this error case.

Fixes: 0f0e357902 ("cifs: during remount, make sure passwords are in sync")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-12-24 11:07:15 -06:00
Lucas De Marchi
0b075f8293 drm/xe: Improve rebar log messages
Some minor improvements to the log messages in the rebar logic:
use xe-oriented printk, switch unit from M to MiB in a few places for
consistency and use ilog2(SZ_1M) for clarity.

Suggested-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patch.msgid.link/20251219211650.1908961-6-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2025-12-24 07:59:35 -08:00
Lucas De Marchi
382876afa7 drm/xe: Move rebar to its own file
Now that xe_pci.c calls the rebar directly, it doesn't make sense to
keep it in xe_vram.c since it's closer to the PCI initialization than to
the VRAM. Move it to its own file.

While at it, add a better comment to document the possible values for
the vram_bar_size module parameter.

Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patch.msgid.link/20251219211650.1908961-5-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2025-12-24 07:59:35 -08:00
Evan Lambert
66691e272e drm/msm: Replace unsafe snprintf usage with scnprintf
The refill_buf function uses snprintf to append to a fixed-size buffer.
snprintf returns the length that would have been written, which can
exceed the remaining buffer size. If this happens, ptr advances beyond
the buffer and rem becomes negative. In the 2nd iteration, rem is
treated as a large unsigned integer, causing snprintf to write oob.

While this behavior is technically mitigated by num_perfcntrs being
locked at 5, it's still unsafe if num_perfcntrs were ever to change/a
second source was added.

Signed-off-by: Evan Lambert <veyga@veygax.dev>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/696358/
Link: https://lore.kernel.org/r/20251224124254.17920-3-veyga@veygax.dev
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 17:55:29 +02:00
Stefano Garzarella
d8ee3cfdc8 vhost/vsock: improve RCU read sections around vhost_vsock_get()
vhost_vsock_get() uses hash_for_each_possible_rcu() to find the
`vhost_vsock` associated with the `guest_cid`. hash_for_each_possible_rcu()
should only be called within an RCU read section, as mentioned in the
following comment in include/linux/rculist.h:

/**
 * hlist_for_each_entry_rcu - iterate over rcu list of given type
 * @pos:	the type * to use as a loop cursor.
 * @head:	the head for your list.
 * @member:	the name of the hlist_node within the struct.
 * @cond:	optional lockdep expression if called from non-RCU protection.
 *
 * This list-traversal primitive may safely run concurrently with
 * the _rcu list-mutation primitives such as hlist_add_head_rcu()
 * as long as the traversal is guarded by rcu_read_lock().
 */

Currently, all calls to vhost_vsock_get() are between rcu_read_lock()
and rcu_read_unlock() except for calls in vhost_vsock_set_cid() and
vhost_vsock_reset_orphans(). In both cases, the current code is safe,
but we can make improvements to make it more robust.

About vhost_vsock_set_cid(), when building the kernel with
CONFIG_PROVE_RCU_LIST enabled, we get the following RCU warning when the
user space issues `ioctl(dev, VHOST_VSOCK_SET_GUEST_CID, ...)` :

  WARNING: suspicious RCU usage
  6.18.0-rc7 #62 Not tainted
  -----------------------------
  drivers/vhost/vsock.c:74 RCU-list traversed in non-reader section!!

  other info that might help us debug this:

  rcu_scheduler_active = 2, debug_locks = 1
  1 lock held by rpc-libvirtd/3443:
   #0: ffffffffc05032a8 (vhost_vsock_mutex){+.+.}-{4:4}, at: vhost_vsock_dev_ioctl+0x2ff/0x530 [vhost_vsock]

  stack backtrace:
  CPU: 2 UID: 0 PID: 3443 Comm: rpc-libvirtd Not tainted 6.18.0-rc7 #62 PREEMPT(none)
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-7.fc42 06/10/2025
  Call Trace:
   <TASK>
   dump_stack_lvl+0x75/0xb0
   dump_stack+0x14/0x1a
   lockdep_rcu_suspicious.cold+0x4e/0x97
   vhost_vsock_get+0x8f/0xa0 [vhost_vsock]
   vhost_vsock_dev_ioctl+0x307/0x530 [vhost_vsock]
   __x64_sys_ioctl+0x4f2/0xa00
   x64_sys_call+0xed0/0x1da0
   do_syscall_64+0x73/0xfa0
   entry_SYSCALL_64_after_hwframe+0x76/0x7e
   ...
   </TASK>

This is not a real problem, because the vhost_vsock_get() caller, i.e.
vhost_vsock_set_cid(), holds the `vhost_vsock_mutex` used by the hash
table writers. Anyway, to prevent that warning, add lockdep_is_held()
condition to hash_for_each_possible_rcu() to verify that either the
caller is in an RCU read section or `vhost_vsock_mutex` is held when
CONFIG_PROVE_RCU_LIST is enabled; and also clarify the comment for
vhost_vsock_get() to better describe the locking requirements and the
scope of the returned pointer validity.

About vhost_vsock_reset_orphans(), currently this function is only
called via vsock_for_each_connected_socket(), which holds the
`vsock_table_lock` spinlock (which is also an RCU read-side critical
section). However, add an explicit RCU read lock there to make the code
more robust and explicit about the RCU requirements, and to prevent
issues if the calling context changes in the future or if
vhost_vsock_reset_orphans() is called from other contexts.

Fixes: 834e772c8d ("vhost/vsock: fix use-after-free in network stack callers")
Cc: stefanha@redhat.com
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20251126133826.142496-1-sgarzare@redhat.com>
Message-ID: <20251126210313.GA499503@fedora>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:57 -05:00
Michael S. Tsirkin
7f81878b04 tools/virtio: add device, device_driver stubs
Add stubs needed by virtio.h

Message-ID: <0fabf13f6ea812ebc73b1c919fb17d4dec1545db.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:56 -05:00
Michael S. Tsirkin
39cfe193f3 tools/virtio: fix up oot build
oot build tends to help uncover bugs so it's worth keeping around,
as long as it's low effort.
add stubs for a couple of macros virtio gained recently,
and disable vdpa in the test build.

Message-ID: <33968faa7994b86d1f78057358a50b8f460c7a23.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:56 -05:00
Michael S. Tsirkin
e88dfb9331 virtio_features: make it self-contained
virtio_features.h uses WARN_ON_ONCE and memset so it must
include linux/bug.h and linux/string.h

Message-ID: <579986aa9b8d023844990d2a0e267382f8ad85d5.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:56 -05:00
Michael S. Tsirkin
cec9c5e385 tools/virtio: switch to kernel's virtio_config.h
Drops stubs in virtio_config.h, use the kernel's version instead - we
are now activly developing it, so the stub became too hard to maintain.

Message-ID: <8e5c85dc8aad001f161f7e2d8799ffbccfc31381.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:56 -05:00
Michael S. Tsirkin
b0fe545b3c tools/virtio: stub might_sleep and synchronize_rcu
Add might_sleep() and synchronize_rcu() stubs needed by virtio_config.h.

might_sleep() is a no-op, synchronize_rcu doesn't work but we don't
need it to.

Created using Cursor CLI.

Message-ID: <5557e026335d808acd7b890693ee1382e73dd33a.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:56 -05:00
Michael S. Tsirkin
a2f964c45b tools/virtio: add struct cpumask to cpumask.h
Add struct cpumask stub used by virtio_config.h.

Created using Cursor CLI.

Message-ID: <eacf56399ba220513ebcd610f4a5115dc768db80.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:56 -05:00
Michael S. Tsirkin
4e949e77fa tools/virtio: pass KCFLAGS to module build
Update the mod target to pass KCFLAGS with the in-tree vhost driver
include path. This way vhost_test can find vhost headers.

Created using Cursor CLI.

Message-ID: <5473e5a5dfd2fcd261a778f2017cac669c031f23.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:56 -05:00
Michael S. Tsirkin
b6600eff05 tools/virtio: add ucopysize.h stub
Add ucopysize.h with stub implementations of check_object_size,
copy_overflow, and check_copy_size.

Created using Cursor CLI.

Message-ID: <5046df90002bb744609248404b81d33b559fe813.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:56 -05:00
Michael S. Tsirkin
c53ad75c62 tools/virtio: add dev_WARN_ONCE and is_vmalloc_addr stubs
Add dev_WARN_ONCE and is_vmalloc_addr stubs needed by virtio_ring.c.
is_vmalloc_addr stub always returns false - that's fine since it's
merely a sanity check.

Created using Cursor CLI.

Message-ID: <749e7a03b7cd56baf50a27efc3b05e50cf8f36b6.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:56 -05:00
Michael S. Tsirkin
03d768a38c tools/virtio: stub DMA mapping functions
Add dma_map_page_attrs and dma_unmap_page_attrs stubs.
Follow the same pattern as existing DMA mapping stubs.

Created using Cursor CLI.

Message-ID: <3512df1fe0e2129ea493434a21c940c50381cc93.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:56 -05:00
Michael S. Tsirkin
42059e68ea tools/virtio: add struct module forward declaration
Declarate struct module in our linux/module.h stub.

Created using Cursor CLI.

Message-ID: <c01b8d24159664cc8c49354088efa342ae9e7321.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:56 -05:00
Michael S. Tsirkin
16fe720f1d tools/virtio: use kernel's virtio.h
Replace virtio stubs with an include of the kernel header.

Message-ID: <33daf1033fc447eb8e3e54d21013ccfd99550e37.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:55 -05:00
Michael S. Tsirkin
f059588c55 virtio: make it self-contained
virtio.h uses struct module, add a forward declaration to
make the header self-contained.

Message-ID: <9171b5cac60793eb59ab044c96ee038bf1363bee.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:55 -05:00
Michael S. Tsirkin
94fb5e796a tools/virtio: fix up compiler.h stub
Add #undef __user before and after including compiler_types.h to avoid
redefinition warnings when compiling with system headers that also
define __user. This allows tools/virtio to build without warnings.

Additionally, stub out __must_check

Created using Cursor CLI.

Message-ID: <56424ce95c72cb4957070a7cd3c3c40ad5addaee.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-12-24 08:02:55 -05:00
Thomas Weißschuh
0f166bf1d6
select: store end_time as timespec64 in restart block
Storing the end time seconds as 'unsigned long' can lead to truncation
on 32-bit architectures if assigned from the 64-bit timespec64::tv_sec.
As the select() core uses timespec64 consistently, also use that in the
restart block.

This also allows the simplification of the accessors.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://patch.msgid.link/20251223-restart-block-expiration-v2-1-8e33e5df7359@linutronix.de
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-12-24 14:01:57 +01:00
Christian Brauner
78c850021d
Merge patch series "Fix two regressions from start_creating()/start_removing() conversion"
Tyler Hicks <code@tyhicks.com> says:

When running the eCryptfs test suite on v6.19-rc2, I noticed BUG splats
from every test and that the umount utility was segfaulting when tearing
down after a test. Bisection led me to commit f046fbb4d8 ("ecryptfs:
use new start_creating/start_removing APIs").

This patch series addresses that regression and also a mknod problem
spotted during code review.

* patches from https://patch.msgid.link/20251223194153.2818445-1-code@tyhicks.com:
  ecryptfs: Release lower parent dentry after creating dir
  ecryptfs: Fix improper mknod pairing of start_creating()/end_removing()

Link: https://patch.msgid.link/20251223194153.2818445-1-code@tyhicks.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-12-24 13:58:10 +01:00
Tyler Hicks
5c56afd204
ecryptfs: Release lower parent dentry after creating dir
Fix a mkdir-induced usage count imbalance that tripped a umount_check()
BUG while unmounting the lower filesystem. Commit f046fbb4d8
("ecryptfs: use new start_creating/start_removing APIs") added a new
dget() of the lower parent dir, in ecryptfs_mkdir(), but did not dput()
the dentry before returning from that function.

The BUG output as seen while running the eCryptfs test suite:

$ ./run_tests.sh -b 131072 -c safe,destructive -f ext4 -K -t lp-926292.sh
...
Running eCryptfs filesystem tests on ext4
lp-926292
------------[ cut here ]------------
BUG: Dentry ffff8e6692d11988{i=c,n=ECRYPTFS_FNEK_ENCRYPTED.FXZuRGZL7QAFtER.JeA46DtdKqkkQx9H2Vpmv234J5CU8YSsrUwZJK4AbXbrN5WkZ348wnqstovKKxA-}  still in use (1) [unmount of ext4 loop0]
WARNING: CPU: 7 PID: 950 at fs/dcache.c:1590 umount_check+0x5e/0x80
Modules linked in: md5 libmd5 ecryptfs encrypted_keys ext4 crc16 mbcache jbd2
CPU: 7 UID: 0 PID: 950 Comm: umount Not tainted 6.18.0-rc1-00013-gf046fbb4d81d #17 PREEMPT(full)
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
RIP: 0010:umount_check+0x5e/0x80
Code: 88 38 06 00 00 48 8b 40 28 4c 8b 08 48 8b 46 68 48 85 c0 74 04 48 8b 50 38 51 48 c7 c7 60 32 9c b5 48 89 f1 e8 43 5e ca ff 90 <0f> 0b 90 90 58 31 c0 e9 46 9d 6c 00 41 83 f8 01 75 b8 eb a3 66 66
RSP: 0018:ffffa19940c4bdd0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff8e6692fad4c0 RCX: 0000000000000000
RDX: 0000000000000004 RSI: ffffa19940c4bc70 RDI: 00000000ffffffff
RBP: ffffffffb4eb5930 R08: 00000000ffffdfff R09: 0000000000000001
R10: 00000000ffffdfff R11: ffffffffb5c8a9e0 R12: ffff8e6692fad4c0
R13: ffff8e6692fad4c0 R14: ffff8e6692d11a40 R15: ffff8e6692d11988
FS:  00007f6b4b491800(0000) GS:ffff8e670506e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6b4b5f8d40 CR3: 0000000114eb7001 CR4: 0000000000772ef0
PKRU: 55555554
Call Trace:
 <TASK>
 d_walk+0xfd/0x370
 shrink_dcache_for_umount+0x4d/0x140
 generic_shutdown_super+0x20/0x160
 kill_block_super+0x1a/0x40
 ext4_kill_sb+0x22/0x40 [ext4]
 deactivate_locked_super+0x33/0xa0
 cleanup_mnt+0xba/0x150
 task_work_run+0x5c/0xa0
 exit_to_user_mode_loop+0xac/0xb0
 do_syscall_64+0x2ab/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6b4b6c2a2b
Code: c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 f3 0f 1e fa 31 f6 e9 05 00 00 00 0f 1f 44 00 00 f3 0f 1e fa b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 8b 15 b9 83 0d 00 f7 d8
RSP: 002b:00007ffcd5b8b498 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000055b84af0b9e0 RCX: 00007f6b4b6c2a2b
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055b84af0bdf0
RBP: 00007ffcd5b8b570 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000103 R11: 0000000000000246 R12: 000055b84af0bae0
R13: 0000000000000000 R14: 000055b84af0bdf0 R15: 0000000000000000
 </TASK>
---[ end trace 0000000000000000 ]---
EXT4-fs (loop0): unmounting filesystem 00d9ea41-f61e-43d0-a449-6be03e7e8428.
EXT4-fs (loop0): sb orphan head is 12
sb_info orphan list:
  inode loop0:12 at ffff8e66950e1df0: mode 40700, nlink 0, next 0
Assertion failure in ext4_put_super() at fs/ext4/super.c:1345: 'list_empty(&sbi->s_orphan)'

Fixes: f046fbb4d8 ("ecryptfs: use new start_creating/start_removing APIs")
Signed-off-by: Tyler Hicks <code@tyhicks.com>
Link: https://patch.msgid.link/20251223194153.2818445-3-code@tyhicks.com
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-12-24 13:58:04 +01:00
Tyler Hicks
5f9ad16bcc
ecryptfs: Fix improper mknod pairing of start_creating()/end_removing()
The ecryptfs_start_creating_dentry() function must be paired with the
end_creating() function. Fix ecryptfs_mknod() so that end_creating() is
properly called in the return path, instead of end_removing().

Fixes: f046fbb4d8 ("ecryptfs: use new start_creating/start_removing APIs")
Signed-off-by: Tyler Hicks <code@tyhicks.com>
Link: https://patch.msgid.link/20251223194153.2818445-2-code@tyhicks.com
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-12-24 13:58:04 +01:00
chen zhang
3685744afa
chardev: Switch to guard(mutex) and __free(kfree)
Instead of using the 'goto label; mutex_unlock()' pattern use
'guard(mutex)' which will release the mutex when it goes out of scope.
Use the __free(kfree) cleanup to replace instances of manually
calling kfree(). Also make some code path simplifications that this
allows.

Signed-off-by: chen zhang <chenzhang@kylinos.cn>
Link: https://patch.msgid.link/20251215111500.159243-1-chenzhang@kylinos.cn
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-12-24 13:55:51 +01:00
Al Viro
3dd57ddec9
get rid of bogus __user in struct xattr_args::value
The first member of struct xattr_args is declared as
	__aligned_u64 __user value;
which makes no sense whatsoever; __user is a qualifier and what that
declaration says is "all struct xattr_args instances have .value
_stored_ in user address space, no matter where the rest of the
structure happens to be".

	Something like "int __user *p" stands for "value of p is a pointer
to an instance of int that happens to live in user address space"; it
says nothing about location of p itself, just as const char *p declares a
pointer to unmodifiable char rather than an unmodifiable pointer to char.

	With xattr_args the intent clearly had been "the 64bit value
represents a _pointer_ to object in user address space", but __user has
nothing to do with that.  All it gets us is a couple of bogus warnings
in fs/xattr.c where (userland) instance of xattr_args is copied to local
variable of that type (in kernel address space), followed by access
to its members.  Since we've told sparse that args.value must somehow be
located in userland memory, we get warned that looking at that 64bit
unsigned integer (in a variable already on kernel stack) is not allowed.

	Note that sparse has no way to express "this integer shall never
be cast into a pointer to be dereferenced directly" and I don't see any
way to assign a sane semantics to that.  In any case, __user is not it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://patch.msgid.link/20251216081939.GQ1712166@ZenIV
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-12-24 13:52:50 +01:00
Thorsten Blum
3f320e5c2e
namespace: Replace simple_strtoul with kstrtoul to parse boot params
Replace simple_strtoul() with the recommended kstrtoul() for parsing the
'mhash_entries=' and 'mphash_entries=' boot parameters.

Check the return value of kstrtoul() and reject invalid values. This
adds error handling while preserving behavior for existing values, and
removes use of the deprecated simple_strtoul() helper.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20251214153141.218953-2-thorsten.blum@linux.dev
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-12-24 13:51:12 +01:00
Thorsten Blum
b29a0a37f4
dcache: Replace simple_strtoul with kstrtoul in set_dhash_entries
Replace simple_strtoul() with the recommended kstrtoul() for parsing the
'dhash_entries=' boot parameter.

Check the return value of kstrtoul() and reject invalid values. This
adds error handling while preserving behavior for existing values, and
removes use of the deprecated simple_strtoul() helper.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20251216145236.44520-2-thorsten.blum@linux.dev
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-12-24 13:49:36 +01:00
Thorsten Blum
63ad216fbf
fs: Replace simple_strtoul with kstrtoul in set_ihash_entries
Replace simple_strtoul() with the recommended kstrtoul() for parsing the
'ihash_entries=' boot parameter.

Check the return value of kstrtoul() and reject invalid values. This
adds error handling while preserving behavior for existing valid values,
and removes use of the deprecated simple_strtoul() helper.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20251218112144.225301-2-thorsten.blum@linux.dev
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-12-24 13:36:39 +01:00
Bagas Sanjaya
73a91ef328
VFS: fix __start_dirop() kernel-doc warnings
Sphinx report kernel-doc warnings:

WARNING: ./fs/namei.c:2853 function parameter 'state' not described in '__start_dirop'
WARNING: ./fs/namei.c:2853 expecting prototype for start_dirop(). Prototype was for __start_dirop() instead

Fix them up.

Fixes: ff7c4ea11a ("VFS: add start_creating_killable() and start_removing_killable()")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://patch.msgid.link/20251219024620.22880-3-bagasdotme@gmail.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-12-24 13:33:24 +01:00
Bagas Sanjaya
fe33729d29
fs: Describe @isnew parameter in ilookup5_nowait()
Sphinx reports kernel-doc warning:

WARNING: ./fs/inode.c:1607 function parameter 'isnew' not described in 'ilookup5_nowait'

Describe the parameter.

Fixes: a27628f436 ("fs: rework I_NEW handling to operate without fences")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://patch.msgid.link/20251219024620.22880-2-bagasdotme@gmail.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-12-24 13:33:24 +01:00
Mateusz Guzik
46af9ae130
fs: make sure to fail try_to_unlazy() and try_to_unlazy() for LOOKUP_CACHED
Otherwise the slowpath can be taken by the caller, defeating the flag.

This regressed after calls to legitimize_links() started being
conditionally elided and stems from the routine always failing
after seeing the flag, regardless if there were any links.

In order to address both the bug and the weird semantics make it illegal
to call legitimize_links() with LOOKUP_CACHED and handle the problem at
the two callsites.

Fixes: 7c179096e7 ("fs: add predicts based on nd->depth")
Reported-by: Chris Mason <clm@meta.com>
Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Link: https://patch.msgid.link/20251220054023.142134-1-mjguzik@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-12-24 13:31:56 +01:00
David Howells
570ad253a3
netfs: Fix early read unlock of page with EOF in middle
The read result collection for buffered reads seems to run ahead of the
completion of subrequests under some circumstances, as can be seen in the
following log snippet:

    9p_client_res: client 18446612686390831168 response P9_TREAD tag  0 err 0
    ...
    netfs_sreq: R=00001b55[1] DOWN TERM  f=192 s=0 5fb2/5fb2 s=5 e=0
    ...
    netfs_collect_folio: R=00001b55 ix=00004 r=4000-5000 t=4000/5fb2
    netfs_folio: i=157f3 ix=00004-00004 read-done
    netfs_folio: i=157f3 ix=00004-00004 read-unlock
    netfs_collect_folio: R=00001b55 ix=00005 r=5000-5fb2 t=5000/5fb2
    netfs_folio: i=157f3 ix=00005-00005 read-done
    netfs_folio: i=157f3 ix=00005-00005 read-unlock
    ...
    netfs_collect_stream: R=00001b55[0:] cto=5fb2 frn=ffffffff
    netfs_collect_state: R=00001b55 col=5fb2 cln=6000 n=c
    netfs_collect_stream: R=00001b55[0:] cto=5fb2 frn=ffffffff
    netfs_collect_state: R=00001b55 col=5fb2 cln=6000 n=8
    ...
    netfs_sreq: R=00001b55[2] ZERO SUBMT f=000 s=5fb2 0/4e s=0 e=0
    netfs_sreq: R=00001b55[2] ZERO TERM  f=102 s=5fb2 4e/4e s=5 e=0

The 'cto=5fb2' indicates the collected file pos we've collected results to
so far - but we still have 0x4e more bytes to go - so we shouldn't have
collected folio ix=00005 yet.  The 'ZERO' subreq that clears the tail
happens after we unlock the folio, allowing the application to see the
uncleared tail through mmap.

The problem is that netfs_read_unlock_folios() will unlock a folio in which
the amount of read results collected hits EOF position - but the ZERO
subreq lies beyond that and so happens after.

Fix this by changing the end check to always be the end of the folio and
never the end of the file.

In the future, I should look at clearing to the end of the folio here rather
than adding a ZERO subreq to do this.  On the other hand, the ZERO subreq can
run in parallel with an async READ subreq.  Further, the ZERO subreq may still
be necessary to, say, handle extents in a ceph file that don't have any
backing store and are thus implicitly all zeros.

This can be reproduced by creating a file, the size of which doesn't align
to a page boundary, e.g. 24998 (0x5fb2) bytes and then doing something
like:

    xfs_io -c "mmap -r 0 0x6000" -c "madvise -d 0 0x6000" \
           -c "mread -v 0 0x6000" /xfstest.test/x

The last 0x4e bytes should all be 00, but if the tail hasn't been cleared
yet, you may see rubbish there.  This can be reproduced with kafs by
modifying the kernel to disable the call to netfs_read_subreq_progress()
and to stop afs_issue_read() from doing the async call for NETFS_READAHEAD.
Reproduction can be made easier by inserting an mdelay(100) in
netfs_issue_read() for the ZERO-subreq case.

AFS and CIFS are normally unlikely to show this as they dispatch READ ops
asynchronously, which allows the ZERO-subreq to finish first.  9P's READ op is
completely synchronous, so the ZERO-subreq will always happen after.  It isn't
seen all the time, though, because the collection may be done in a worker
thread.

Reported-by: Christian Schoenebeck <linux_oss@crudebyte.com>
Link: https://lore.kernel.org/r/8622834.T7Z3S40VBb@weasel/
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/938162.1766233900@warthog.procyon.org.uk
Fixes: e2d46f2ec3 ("netfs: Change the read result collector to only use one work item")
Tested-by: Christian Schoenebeck <linux_oss@crudebyte.com>
Acked-by: Dominique Martinet <asmadeus@codewreck.org>
Suggested-by: Dominique Martinet <asmadeus@codewreck.org>
cc: Dominique Martinet <asmadeus@codewreck.org>
cc: Christian Schoenebeck <linux_oss@crudebyte.com>
cc: v9fs@lists.linux.dev
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-12-24 13:30:24 +01:00
Arnd Bergmann
284853affe
ASoC: rt1320: fix size_t format string
Printing a size_t portably requires the use of %z instead of %l:

sound/soc/codecs/rt1320-sdw.c:1494:30: error: format '%lx' expects argument of type 'long unsigned int', but argument 5 has type 'size_t' {aka 'unsigned int'} [-Werror=format=]
 1494 |                 dev_dbg(dev, "%s, rae_fw size=0x%lx\n", __func__, rae_fw->size);
      |                              ^~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 22937af75a ("ASoC: rt1320: support RAE parameters loading")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20251223215322.694265-1-arnd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-12-24 11:31:36 +00:00
Arnd Bergmann
836ecc740c
ASoC: rt1320: fix 32-bit link failure
A plain 64-bit division causes a link failure in some configurations:

ERROR: modpost: "__aeabi_uldivmod" [sound/soc/codecs/snd-soc-rt1320-sdw.ko] undefined!

Since this divides by a constant, using the div_u64() macro ends up
turning this into an efficient multiply/shift operation where possible.

In rt1320_calc_r0(), the open-coded shift seems a litle simpler.

Fixes: da1682d5e8 ("ASoC: rt1320: support calibration and temperature/r0 loading")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20251223215259.677762-1-arnd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-12-24 11:31:35 +00:00
Andreas Kemnade
60489936ac
regulator: fp9931: fix regulator node pointer
Sync the driver with the binding. During review process a regulators
subnode was requested but neither driver nor test setup was updated.

Fixes: 12d821bd13 ("regulator: Add FP9931/JD9930 driver")
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Link: https://patch.msgid.link/20251223-fp9931-fix-v1-1-b19b4c1e7056@kemnade.info
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-12-24 11:31:29 +00:00
Nikolay Kuratov
88733a0b64 drm/msm/dpu: Add missing NULL pointer check for pingpong interface
It is checked almost always in dpu_encoder_phys_wb_setup_ctl(), but in a
single place the check is missing.
Also use convenient locals instead of phys_enc->* where available.

Cc: stable@vger.kernel.org
Fixes: d7d0e73f7d ("drm/msm/dpu: introduce the dpu_encoder_phys_* for writeback")
Signed-off-by: Nikolay Kuratov <kniv@yandex-team.ru>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/693860/
Link: https://lore.kernel.org/r/20251211093630.171014-1-kniv@yandex-team.ru
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00
Abel Vesa
da9168d8ef Revert "drm/msm/dpu: Enable quad-pipe for DSC and dual-DSI case"
This reverts commit d7ec9366b1.

The dual-DSI dual-DSC scenario seems to be broken by this commit.

Reported-by: Marijn Suijten <marijn.suijten@somainline.org>
Closes: https://lore.kernel.org/r/aUR2b3FOSisTfDFj@SoMainline.org
Signed-off-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Fixes: d7ec9366b1 ("drm/msm/dpu: Enable quad-pipe for DSC and dual-DSI case")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695550/
Link: https://lore.kernel.org/r/20251219-drm-msm-dpu-revert-quad-pipe-broken-v1-2-654b46505f84@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00
Abel Vesa
35ab5123bd Revert "drm/msm/dpu: support plane splitting in quad-pipe case"
This reverts commit 5978864e34.

At least on Hamoa based devices, there are IOMMU faults:

arm-smmu 15000000.iommu: Unhandled context fault: fsr=0x402, iova=0x00000000, fsynr=0x3d0023, cbfrsynra=0x1c00, cb=13
arm-smmu 15000000.iommu: FSR    = 00000402 [Format=2 TF], SID=0x1c00
arm-smmu 15000000.iommu: FSYNR0 = 003d0023 [S1CBNDX=61 PNU PLVL=3]

While on some of these devices, there are also all sorts of artifacts on eDP.

Reverting this fixes these issues.

Closes: https://lore.kernel.org/r/z75wnahrp7lrl5yhfdysr3np3qrs6xti2i4otkng4ex3blfgrx@xyiucge3xykb/
Signed-off-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Fixes: 5978864e34 ("drm/msm/dpu: support plane splitting in quad-pipe case")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695549/
Link: https://lore.kernel.org/r/20251219-drm-msm-dpu-revert-quad-pipe-broken-v1-1-654b46505f84@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00
Randy Dunlap
7c85da6f63 drm/msm: msm_iommu.c: fix all kernel-doc warnings
Correct or add kernel-doc comments to eliminate all warnings:

Warning: ../drivers/gpu/drm/msm/msm_iommu.c:381 expecting prototype for
 alloc_pt(). Prototype was for msm_iommu_pagetable_alloc_pt() instead
Warning: ../drivers/gpu/drm/msm/msm_iommu.c:426 expecting prototype for
 free_pt(). Prototype was for msm_iommu_pagetable_free_pt() instead

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695675/
Link: https://lore.kernel.org/r/20251219184638.1813181-20-rdunlap@infradead.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00
Randy Dunlap
cd56978652 drm/msm: msm_gpu.h: fix all kernel-doc warnings
Correct or add kernel-doc comments to eliminate all warnings:

Warning: drivers/gpu/drm/msm/msm_gpu.h:119 Incorrect use of kernel-doc
 format: * devfreq: devfreq instance
Warning: drivers/gpu/drm/msm/msm_gpu.h:125 Incorrect use of kernel-doc
 format: * idle_freq:
Warning: drivers/gpu/drm/msm/msm_gpu.h:136 Incorrect use of kernel-doc
 format: * boost_constraint:
Warning: drivers/gpu/drm/msm/msm_gpu.h:144 Incorrect use of kernel-doc
 format: * busy_cycles: Last busy counter value, for calculating elapsed
 busy
Warning: drivers/gpu/drm/msm/msm_gpu.h:156 Incorrect use of kernel-doc
 format: * idle_work:
Warning: drivers/gpu/drm/msm/msm_gpu.h:163 Incorrect use of kernel-doc
 format: * boost_work:
Warning: drivers/gpu/drm/msm/msm_gpu.h:170 struct member 'devfreq' not
 described in 'msm_gpu_devfreq'
Warning: drivers/gpu/drm/msm/msm_gpu.h:170 struct member 'boost_freq' not
 described in 'msm_gpu_devfreq'
Warning: drivers/gpu/drm/msm/msm_gpu.h:172 struct member 'devfreq' not
 described in 'msm_gpu_devfreq'
Warning: drivers/gpu/drm/msm/msm_gpu.h:172 struct member 'lock' not
 described in 'msm_gpu_devfreq'
Warning: drivers/gpu/drm/msm/msm_gpu.h:172 struct member 'governor' not
 described in 'msm_gpu_devfreq'
Warning: drivers/gpu/drm/msm/msm_gpu.h:172 struct member 'we are
 continuing to sample busyness and * adjust frequency while the GPU is
 idle' not described in 'msm_gpu_devfreq'
Warning: drivers/gpu/drm/msm/msm_gpu.h:172 struct member 'boost_freq' not
 described in 'msm_gpu_devfreq'
Warning: drivers/gpu/drm/msm/msm_gpu.h:172 struct member 'busy_cycles'
 not described in 'msm_gpu_devfreq'
Warning: drivers/gpu/drm/msm/msm_gpu.h:172 struct member 'time' not
 described in 'msm_gpu_devfreq'
Warning: drivers/gpu/drm/msm/msm_gpu.h:172 struct member 'idle_time' not
 described in 'msm_gpu_devfreq'
Warning: drivers/gpu/drm/msm/msm_gpu.h:172 struct member 'idle_work' not
 described in 'msm_gpu_devfreq'
Warning: drivers/gpu/drm/msm/msm_gpu.h:172 struct member 'boost_work' not
 described in 'msm_gpu_devfreq'
Warning: drivers/gpu/drm/msm/msm_gpu.h:172 struct member 'suspended' not
 described in 'msm_gpu_devfreq'
Warning: drivers/gpu/drm/msm/msm_gpu.h:472 No description found for
 return value of 'msm_context_is_vmbind'
Warning: drivers/gpu/drm/msm/msm_gpu.h:476 struct member 'ref' not
 described in 'msm_context'
Warning: drivers/gpu/drm/msm/msm_gpu.h:476 struct member 'elapsed_ns' not
 described in 'msm_context'
Warning: drivers/gpu/drm/msm/msm_gpu.h:492 expecting prototype for
 msm_context_is_vm_bind(). Prototype was for msm_context_is_vmbind()
 instead
Warning: drivers/gpu/drm/msm/msm_gpu.h:523 No description found for
 return value of 'msm_gpu_convert_priority'
Warning: drivers/gpu/drm/msm/msm_gpu.h:583 expecting prototype for
 struct msm_gpu_submitqueues. Prototype was for struct msm_gpu_submitqueue
 instead

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695671/
Link: https://lore.kernel.org/r/20251219184638.1813181-19-rdunlap@infradead.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00
Randy Dunlap
010c98df53 drm/msm: msm_gem_vma.c: fix all kernel-doc warnings
Correct or add kernel-doc comments to eliminate all warnings:

Warning: ../drivers/gpu/drm/msm/msm_gem_vma.c:96 expecting prototype for
 struct msm_vma_op. Prototype was for struct msm_vm_op instead

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695679/
Link: https://lore.kernel.org/r/20251219184638.1813181-18-rdunlap@infradead.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00
Randy Dunlap
4fc510e571 drm/msm: msm_fence.h: fix all kernel-doc warnings
Correct or add kernel-doc comments to eliminate all warnings:

Warning: drivers/gpu/drm/msm/msm_fence.h:27 Incorrect use of kernel-doc
 format: * last_fence:
Warning: drivers/gpu/drm/msm/msm_fence.h:36 Incorrect use of kernel-doc
 format: * completed_fence:
Warning: drivers/gpu/drm/msm/msm_fence.h:44 Incorrect use of kernel-doc
 format: * fenceptr:
Warning: drivers/gpu/drm/msm/msm_fence.h:65 Incorrect use of kernel-doc
 format: * next_deadline_fence:
Warning: drivers/gpu/drm/msm/msm_fence.h:74 struct member 'dev' not
 described in 'msm_fence_context'
Warning: drivers/gpu/drm/msm/msm_fence.h:74 struct member 'name' not
 described in 'msm_fence_context'
Warning: drivers/gpu/drm/msm/msm_fence.h:74 struct member 'context' not
 described in 'msm_fence_context'
Warning: drivers/gpu/drm/msm/msm_fence.h:74 struct member 'index' not
 described in 'msm_fence_context'
Warning: drivers/gpu/drm/msm/msm_fence.h:74 struct member 'fence' not
 described in 'msm_fence_context'
Warning: drivers/gpu/drm/msm/msm_fence.h:74 struct member 'there is no
 remaining pending work */ uint32_t last_fence' not described in
 'msm_fence_context'
Warning: drivers/gpu/drm/msm/msm_fence.h:74 struct member 'updated from the CPU after interrupt * from GPU */ uint32_t completed_fence' not described in 'msm_fence_context'
Warning: drivers/gpu/drm/msm/msm_fence.h:74 struct member 'fenceptr' not
 described in 'msm_fence_context'
Warning: drivers/gpu/drm/msm/msm_fence.h:74 struct member 'spinlock' not
 described in 'msm_fence_context'
Warning: drivers/gpu/drm/msm/msm_fence.h:74 struct member 'next_deadline'
 not described in 'msm_fence_context'
Warning: drivers/gpu/drm/msm/msm_fence.h:74 struct member
 'next_deadline_fence' not described in 'msm_fence_context'
Warning: drivers/gpu/drm/msm/msm_fence.h:74 struct member 'deadline_timer'
 not described in 'msm_fence_context'
Warning: drivers/gpu/drm/msm/msm_fence.h:74 struct member 'deadline_work'
 not described in 'msm_fence_context'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695667/
Link: https://lore.kernel.org/r/20251219184638.1813181-17-rdunlap@infradead.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00
Randy Dunlap
a6ccad6604 drm/msm/dpu: dpu_hw_wb.h: fix all kernel-doc warnings
Correct or add kernel-doc comments to eliminate all warnings:

Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.h:24 Cannot find
 identifier on line: *
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.h:57 struct member
 'setup_roi' not described in 'dpu_hw_wb_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.h:75 struct member
 'caps' not described in 'dpu_hw_wb'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695672/
Link: https://lore.kernel.org/r/20251219184638.1813181-16-rdunlap@infradead.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00
Randy Dunlap
3091c572fe drm/msm/dpu: dpu_hw_vbif.h: fix all kernel-doc warnings
Correct or add kernel-doc comments to eliminate all warnings:

Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:19 Incorrect use of
 kernel-doc format: * set_limit_conf - set transaction limit config
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:29 Incorrect use of
 kernel-doc format: * get_limit_conf - get transaction limit config
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:39 Incorrect use of
 kernel-doc format: * set_halt_ctrl - set halt control
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:48 Incorrect use of
 kernel-doc format: * get_halt_ctrl - get halt control
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:57 Incorrect use of
 kernel-doc format: * set_qos_remap - set QoS priority remap
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:67 Incorrect use of
 kernel-doc format: * set_mem_type - set memory type
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:76 Incorrect use of
 kernel-doc format: * clear_errors - clear any vbif errors
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:88 Incorrect use of
 kernel-doc format: * set_write_gather_en - set write_gather enable
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:93 struct member
 'limit' not described in 'dpu_hw_vbif_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:93 struct member
 'set_limit_conf' not described in 'dpu_hw_vbif_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:93 struct member
 'get_limit_conf' not described in 'dpu_hw_vbif_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:93 struct member
 'set_halt_ctrl' not described in 'dpu_hw_vbif_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:93 struct member
 'get_halt_ctrl' not described in 'dpu_hw_vbif_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:93 struct member
 'set_qos_remap' not described in 'dpu_hw_vbif_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:93 struct member
 'set_mem_type' not described in 'dpu_hw_vbif_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:93 struct member
 's' not described in 'dpu_hw_vbif_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_vbif.h:93 struct member
 'set_write_gather_en' not described in 'dpu_hw_vbif_ops'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695680/
Link: https://lore.kernel.org/r/20251219184638.1813181-15-rdunlap@infradead.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00
Randy Dunlap
6e945d518a drm/msm/dpu: dpu_hw_top.h: fix all kernel-doc warnings
Correct or add kernel-doc comments to eliminate all warnings:

Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h:93 Incorrect use of
 kernel-doc format: * setup_traffic_shaper() : Setup traffic shaper control
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h:101 Incorrect use of
 kernel-doc format: * setup_clk_force_ctrl - set clock force control
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h:111 Incorrect use of
 kernel-doc format: * get_danger_status - get danger status
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h:119 Incorrect use of
 kernel-doc format: * setup_vsync_source - setup vsync source
 configuration details
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h:127 Incorrect use of
 kernel-doc format: * get_safe_status - get safe status
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h:135 Incorrect use of
 kernel-doc format: * dp_phy_intf_sel - configure intf to phy mapping
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h:142 Incorrect use of
 kernel-doc format: * intf_audio_select - select the external interface
 for audio
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h:146 struct member
 'setup_clk_force_ctrl' not described in 'dpu_hw_mdp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h:146 struct member
 'get_danger_status' not described in 'dpu_hw_mdp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h:146 struct member
 'setup_vsync_source' not described in 'dpu_hw_mdp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h:146 struct member
 'get_safe_status' not described in 'dpu_hw_mdp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h:146 struct member
 'dp_phy_intf_sel' not described in 'dpu_hw_mdp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h:146 struct member
 'intf_audio_select' not described in 'dpu_hw_mdp_ops'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695669/
Link: https://lore.kernel.org/r/20251219184638.1813181-14-rdunlap@infradead.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00
Randy Dunlap
f5a7145d0f drm/msm/dpu: dpu_hw_sspp.h: fix all kernel-doc warnings
Modify non-kernel-doc comments to begin with "/*" instead of "/**".
Correct or add kernel-doc comments to eliminate all warnings:

Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:17 missing initial
 short description on line: * Flags
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:19 expecting
 prototype for Flags(). Prototype was for DPU_SSPP_FLIP_LR() instead
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:26 This comment
 starts with '/**', but isn't a kernel-doc comment.
 * Component indices
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:47 cannot understand
 function prototype: 'enum dpu_sspp_multirect_index'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:152 struct member
 'dst_rect' not described in 'dpu_sw_pipe_cfg'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:174 struct member
 'multirect_index' not described in 'dpu_sw_pipe'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:174 struct member
 'multirect_mode' not described in 'dpu_sw_pipe'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:183 Incorrect use of
 kernel-doc format: * setup_format - setup pixel format cropping
 rectangle, flip
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:192 Incorrect use of
 kernel-doc format: * setup_rects - setup pipe ROI rectangles
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:200 Incorrect use of
 kernel-doc format: * setup_pe - setup pipe pixel extension
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:208 Incorrect use of
 kernel-doc format: * setup_sourceaddress - setup pipe source addresses
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:216 Incorrect use of
 kernel-doc format: * setup_csc - setup color space coversion
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:223 Incorrect use of
 kernel-doc format: * setup_solidfill - enable/disable colorfill
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:231 Incorrect use of
 kernel-doc format: * setup_multirect - setup multirect configuration
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:238 Incorrect use of
 kernel-doc format: * setup_sharpening - setup sharpening
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:247 Incorrect use of
 kernel-doc format: * setup_qos_lut - setup QoS LUTs
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:255 Incorrect use of
 kernel-doc format: * setup_qos_ctrl - setup QoS control
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:263 Incorrect use of
 kernel-doc format: * setup_clk_force_ctrl - setup clock force control
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:271 Incorrect use of
 kernel-doc format: * setup_histogram - setup histograms
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:279 Incorrect use of
 kernel-doc format: * setup_scaler - setup scaler
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:288 Incorrect use of
 kernel-doc format: * setup_cdp - setup client driven prefetch
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_format' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_rects' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_pe' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_sourceaddress' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_csc' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_solidfill' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_multirect' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_sharpening' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_qos_lut' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_qos_ctrl' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_clk_force_ctrl' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_histogram' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_scaler' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:296 struct member
 'setup_cdp' not described in 'dpu_hw_sspp_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h:320 struct member
 'mdss_ver' not described in 'dpu_hw_sspp'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695661/
Link: https://lore.kernel.org/r/20251219184638.1813181-13-rdunlap@infradead.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00
Randy Dunlap
abc287a76e drm/msm/dpu: dpu_hw_pingpong.h: fix all kernel-doc warnings
Correct or add kernel-doc comments to eliminate all warnings:

Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:36 Cannot find
 identifier on line: *
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:46 Incorrect use
 of kernel-doc format: * enables vysnc generation and sets up init value of
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:53 Incorrect use
 of kernel-doc format: * disables tear check block
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:58 Incorrect use
 of kernel-doc format: * read, modify, write to either set or clear
 listening to external TE
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:65 Incorrect use
 of kernel-doc format: * Obtain current vertical line counter
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:70 Incorrect use
 of kernel-doc format: * Disable autorefresh if enabled
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:75 Incorrect use
 of kernel-doc format: * Setup dither matix for pingpong block
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:80 Incorrect use
 of kernel-doc format: * Enable DSC
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:85 Incorrect use
 of kernel-doc format: * Disable DSC
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:90 Incorrect use
 of kernel-doc format: * Setup DSC
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:93 struct member
 'connect_external_te' not described in 'dpu_hw_pingpong_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:93 struct member
 'disable_autorefresh' not described in 'dpu_hw_pingpong_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:93 struct member
 'enable_dsc' not described in 'dpu_hw_pingpong_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:93 struct member
 'disable_dsc' not described in 'dpu_hw_pingpong_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h:93 struct member
 'setup_dsc' not described in 'dpu_hw_pingpong_ops'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695659/
Link: https://lore.kernel.org/r/20251219184638.1813181-12-rdunlap@infradead.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00
Randy Dunlap
847c12befa drm/msm/dpu: dpu_hw_merge3d.h: fix all kernel-doc warnings
Delete one "empty" kernel-doc line to eliminate a warning:

Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_merge3d.h:14 Cannot find
 identifier on line: *

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695673/
Link: https://lore.kernel.org/r/20251219184638.1813181-11-rdunlap@infradead.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00
Randy Dunlap
7ce9dd5eca drm/msm/dpu: dpu_hw_lm.h: fix all kernel-doc warnings
Correct or add kernel-doc comments to eliminate all warnings:

Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:27 Cannot find
 identifier on line: *
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:52 Incorrect use of
 kernel-doc format: * Clear layer mixer to pipe configuration
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:59 Incorrect use of
 kernel-doc format: * Configure layer mixer to pipe configuration
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:69 Incorrect use of
 kernel-doc format: * setup_border_color : enable/disable border color
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:76 Incorrect use of
 kernel-doc format: * setup_misr: Enable/disable MISR
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:81 Incorrect use of
 kernel-doc format: * collect_misr: Read MISR signature

Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:84 struct member
 'setup_mixer_out' not described in 'dpu_hw_lm_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:84 struct member
 'setup_blend_config' not described in 'dpu_hw_lm_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:84 struct member
 'setup_alpha_out' not described in 'dpu_hw_lm_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:84 struct member
 'clear_all_blendstages' not described in 'dpu_hw_lm_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:84 struct member
 'setup_blendstage' not described in 'dpu_hw_lm_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:84 struct member
 'setup_border_color' not described in 'dpu_hw_lm_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:84 struct member
 'setup_misr' not described in 'dpu_hw_lm_ops'
Warning: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h:84 struct member
 'collect_misr' not described in 'dpu_hw_lm_ops'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695648/
Link: https://lore.kernel.org/r/20251219184638.1813181-10-rdunlap@infradead.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-12-24 11:24:19 +02:00