Linus Torvalds [Fri, 12 Dec 2025 09:59:19 +0000 (21:59 +1200)]
Merge tag 'v6.19-rc-smb3-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
- minor cleanup
- minor update to comment to avoid confusion about fs type
* tag 'v6.19-rc-smb3-server-fixes' of git://git.samba.org/ksmbd:
smb/server: add comment to FileSystemName of FileFsAttributeInformation
smb/server: remove unused nterr.h
smb/server: rename include guard in smb_common.h
Linus Torvalds [Fri, 12 Dec 2025 09:52:42 +0000 (21:52 +1200)]
Merge tag 'nfs-for-6.19-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust:
"Bugfixes:
- Fix 'nlink' attribute update races when unlinking a file
- Add missing initialisers for the directory verifier in various
places
- Don't regress the NFSv4 open state due to misordered racing replies
- Ensure the NFSv4.x callback server uses the correct transport
connection
- Fix potential use-after-free races when shutting down the NFSv4.x
callback server
- Fix a pNFS layout commit crash
- Assorted fixes to ensure correct propagation of mount options when
the client crosses a filesystem boundary and triggers the VFS
automount code
- More localio fixes
Features and cleanups:
- Add initial support for basic directory delegations
- SunRPC back channel code cleanups"
* tag 'nfs-for-6.19-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (24 commits)
NFSv4: Handle NFS4ERR_NOTSUPP errors for directory delegations
nfs/localio: remove 61 byte hole from needless ____cacheline_aligned
nfs/localio: remove alignment size checking in nfs_is_local_dio_possible
NFS: Fix up the automount fs_context to use the correct cred
NFS: Fix inheritance of the block sizes when automounting
NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags
Revert "nfs: ignore SB_RDONLY when mounting nfs"
Revert "nfs: clear SB_RDONLY before getting superblock"
Revert "nfs: ignore SB_RDONLY when remounting nfs"
NFS: Add a module option to disable directory delegations
NFS: Shortcut lookup revalidations if we have a directory delegation
NFS: Request a directory delegation during RENAME
NFS: Request a directory delegation on ACCESS, CREATE, and UNLINK
NFS: Add support for sending GDD_GETATTR
NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid
NFSv4.1: protect destroying and nullifying bc_serv structure
SUNRPC: new helper function for stopping backchannel server
SUNRPC: cleanup common code in backchannel request
NFSv4.1: pass transport for callback shutdown
NFSv4: ensure the open stateid seqid doesn't go backwards
...
Linus Torvalds [Thu, 11 Dec 2025 03:13:29 +0000 (12:13 +0900)]
Merge tag 'for-6.19/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mikulas Patocka:
- convert crypto_shash users to direct crypto library use with simpler
and faster code and reduced stack usage (Eric Biggers):
- the dm-verity SHA-256 conversion also teaches it to do two-way
interleaved hashing for added performance
- dm-crypt MD5 conversion (used for Loop-AES compatibility)
- added document for for takeover/reshape raid1 -> raid5 examples (Heinz Mauelshagen)
- fix dm-vdo kerneldoc warnings (Matthew Sakai)
- various random fixes and cleanups
* tag 'for-6.19/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (29 commits)
dm pcache: fix segment info indexing
dm pcache: fix cache info indexing
dm-pcache: advance slot index before writing slot
dm raid: add documentation for takeover/reshape raid1 -> raid5 table line examples
dm log-writes: Add missing set_freezable() for freezable kthread
dm-raid: fix possible NULL dereference with undefined raid type
dm-snapshot: fix 'scheduling while atomic' on real-time kernels
dm: ignore discard return value
MAINTAINERS: add Benjamin Marzinski as a device mapper maintainer
dm-mpath: Simplify the setup_scsi_dh code
dm vdo: fix kerneldoc warnings
dm-bufio: align write boundary on physical block size
dm-crypt: enable DM_TARGET_ATOMIC_WRITES
dm: test for REQ_ATOMIC in dm_accept_partial_bio()
dm-verity: remove useless mempool
dm-verity: disable recursive forward error correction
dm-ebs: Mark full buffer dirty even on partial write
dm mpath: enable DM_TARGET_ATOMIC_WRITES
dm verity fec: Expose corrected block count via status
dm: Don't warn if IMA_DISABLE_HTABLE is not enabled
...
Linus Torvalds [Thu, 11 Dec 2025 00:57:08 +0000 (09:57 +0900)]
Merge tag 'spi-fix-v6.19-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few small fixes for SPI that came in during the merge window,
nothing too exciting here"
* tag 'spi-fix-v6.19-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: microchip-core: Fix an error handling path in mchp_corespi_probe()
spi: cadence-qspi: Fix runtime PM imbalance in probe
Linus Torvalds [Thu, 11 Dec 2025 00:54:59 +0000 (09:54 +0900)]
Merge tag 'regulator-fix-v6.19-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A few fixes that came in during the merge window, nothing too
exciting - the one core fix improves error propagation from gpiolib
which hopefully shouldn't actually happen but is safer"
* tag 'regulator-fix-v6.19-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: spacemit: Align input supply name with the DT binding
regulator: fixed: Rely on the core freeing the enable GPIO
regulator: check the return value of gpiod_set_value_cansleep()
Linus Torvalds [Wed, 10 Dec 2025 23:54:08 +0000 (08:54 +0900)]
Merge tag 'slab-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fix from Vlastimil Babka:
- A stable fix for performance regression in tests that perform
kmem_cache_destroy() a lot, due to unnecessarily wide scope of
kvfree_rcu_barrier() (Harry Yoo)
* tag 'slab-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
mm/slab: introduce kvfree_rcu_barrier_on_cache() for cache destruction
Linus Torvalds [Wed, 10 Dec 2025 23:19:46 +0000 (08:19 +0900)]
Merge tag 's390-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Heiko Carstens:
- Use the MSI parent domain API instead of the legacy API for setup and
teardown of PCI MSI IRQs
- Select POSIX_CPU_TIMERS_TASK_WORK now that VIRT_XFER_TO_GUEST_WORK
has been implemented for s390
- Fix a KVM bug which can lead to guest memory corruption
- Fix KASAN shadow memory mapping for hotplugged memory
- Minor bug fixes and improvements
* tag 's390-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/bug: Add missing alignment
s390/bug: Add missing CONFIG_BUG ifdef again
KVM: s390: Fix gmap_helper_zap_one_page() again
s390/pci: Migrate s390 IRQ logic to IRQ domain API
genirq: Change hwirq parameter to irq_hw_number_t
s390: Select POSIX_CPU_TIMERS_TASK_WORK
s390: Unmap early KASAN shadow on memory offlining
s390/vmem: Support 2G page splitting for KASAN shadow freeing
s390/boot: Use entire page for PTEs
s390/vmur: Use scnprintf() instead of sprintf()
Linus Torvalds [Wed, 10 Dec 2025 23:14:23 +0000 (08:14 +0900)]
Merge tag 'dma-mapping-6.19-2025-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
Pull dma-mapping fixes from Marek Szyprowski:
- last minute fix for missing parenthesis in recently merged code (Hans
de Goede)
- removal of excessive, non-fatal warnings (Dave Kleikamp)
* tag 'dma-mapping-6.19-2025-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
dma-mapping: Fix DMA_BIT_MASK() macro being broken
dma/pool: eliminate alloc_pages warning in atomic_pool_expand
Linus Torvalds [Wed, 10 Dec 2025 23:01:52 +0000 (08:01 +0900)]
Merge tag 'alpha-for-v6.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/lindholm/alpha
Pull alpha updates from Magnus Lindholm:
"Two small uapi fixes. One patch hardcodes TC* ioctl values that
previously depended on the deprecated termio struct, avoiding build
issues with newer glibc versions. The other patch switches uapi
headers to use the compiler-defined __ASSEMBLER__ macro for better
consistency between kernel and userspace.
- don't reference obsolete termio struct for TC* constants
- Replace __ASSEMBLY__ with __ASSEMBLER__ in the alpha headers"
* tag 'alpha-for-v6.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/lindholm/alpha:
alpha: don't reference obsolete termio struct for TC* constants
alpha: Replace __ASSEMBLY__ with __ASSEMBLER__ in the alpha headers
Li Chen [Fri, 5 Dec 2025 05:46:20 +0000 (05:46 +0000)]
dm pcache: fix segment info indexing
Segment info indexing also used sizeof(struct) instead of the
4K metadata stride, so info_index could point between slots and
subsequent writes would advance incorrectly. Derive info_index
from the pointer returned by the segment meta search using
PCACHE_SEG_INFO_SIZE and advance to the next slot for future
updates.
Signed-off-by: Li Chen <chenl311@chinatelecom.cn> Signed-off-by: Dongsheng Yang <dongsheng.yang@linux.dev> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Reviewed-by: Zheng Gu <cengku@gmail.com> Cc: stable@vger.kernel.org # 6.18
Li Chen [Fri, 5 Dec 2025 05:46:19 +0000 (05:46 +0000)]
dm pcache: fix cache info indexing
The on-media cache_info index used sizeof(struct) instead of the
4K metadata stride, so gc_percent updates from dmsetup message
were written between slots and lost after reboot. Use
PCACHE_CACHE_INFO_SIZE in get_cache_info_addr() and align
info_index with the slot returned by pcache_meta_find_latest().
Signed-off-by: Li Chen <chenl311@chinatelecom.cn> Signed-off-by: Dongsheng Yang <dongsheng.yang@linux.dev> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Reviewed-by: Zheng Gu <cengku@gmail.com> Cc: stable@vger.kernel.org # 6.18
Dongsheng Yang [Fri, 5 Dec 2025 05:46:18 +0000 (05:46 +0000)]
dm-pcache: advance slot index before writing slot
In dm-pcache, in order to ensure crash-consistency, a dual-copy scheme
is used to alternately update metadata, and there is a slot index that
records the current slot. However, in the write path the current
implementation writes directly to the current slot indexed by slot
index, and then advances the slot — which ends up overwriting the
existing slot, violating the crash-consistency guarantee.
This patch fixes that behavior, preventing metadata from being
overwritten incorrectly.
In addition, this patch add a missing pmem_wmb() after memcpy_flushcache().
Haotian Zhang [Mon, 1 Dec 2025 07:41:03 +0000 (15:41 +0800)]
dm log-writes: Add missing set_freezable() for freezable kthread
The log_writes_kthread() calls try_to_freeze() but lacks set_freezable(),
rendering the freeze attempt ineffective since kernel threads are
non-freezable by default. This prevents proper thread suspension during
system suspend/hibernate.
Add set_freezable() to explicitly mark the thread as freezable.
Alexey Simakov [Tue, 2 Dec 2025 17:18:38 +0000 (20:18 +0300)]
dm-raid: fix possible NULL dereference with undefined raid type
rs->raid_type is assigned from get_raid_type_by_ll(), which may return
NULL. This NULL value could be dereferenced later in the condition
'if (!(rs_is_raid10(rs) && rt_is_raid0(rs->raid_type)))'.
Add a fail-fast check to return early with an error if raid_type is NULL,
similar to other uses of this function.
Found by Linux Verification Center (linuxtesting.org) with Svace.
Fixes: 33e53f06850f ("dm raid: introduce extended superblock and new raid types to support takeover/reshaping") Signed-off-by: Alexey Simakov <bigalex934@gmail.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Mikulas Patocka [Mon, 1 Dec 2025 21:13:10 +0000 (22:13 +0100)]
dm-snapshot: fix 'scheduling while atomic' on real-time kernels
There is reported 'scheduling while atomic' bug when using dm-snapshot on
real-time kernels. The reason for the bug is that the hlist_bl code does
preempt_disable() when taking the lock and the kernel attempts to take
other spinlocks while holding the hlist_bl lock.
Fix this by converting a hlist_bl spinlock into a regular spinlock.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Reported-by: Jiping Ma <jiping.ma2@windriver.com>
__blkdev_issue_discard() always returns 0, making all error checking
at call sites dead code.
For dm-thin change issue_discard() return type to void, in
passdown_double_checking_shared_status() remove the r assignment from
return value of the issue_discard(), for end_discard() hardcode value of
r to 0 that matches only value returned from __blkdev_issue_discard().
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chaitanya Kulkarni <ckulkarnilinux@gmail.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
There's no point to the MPATHF_RETAIN_ATTACHED_HW_HANDLER flag any more.
The way setup_scsi_dh() worked, if that flag wasn't set, it would
attempt to attach any passed in hardware handler. This would always fail
if a different hardware handler was attached, which caused
setup_scsi_dh() to rerun as if the flag was set. So the code would
already retain any attached handler, because attaching a different one
would always fail.
Also, the code had a bug. If attached_handler_name was NULL but there
was a scsi device handler attached (because either
scsi_dh_attached_handler_name failed() to allocate a name, a handler got
attached after it was called) the code would loop endlessly.
Instead, ignore MPATHF_RETAIN_ATTACHED_HW_HANDLER, and always free the
passed in handler if *attached_handler_name is set. This simplifies the
code, and avoids the endless loop bug, while keeping the functionality
the same.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Matthew Sakai [Fri, 21 Nov 2025 22:51:04 +0000 (17:51 -0500)]
dm vdo: fix kerneldoc warnings
Fix kerneldoc warnings across the dm-vdo target. Also
remove some unhelpful or inaccurate doc comments, and fix
some format inconsistencies that did not produce warnings.
Mikulas Patocka [Mon, 20 Oct 2025 12:48:13 +0000 (14:48 +0200)]
dm-bufio: align write boundary on physical block size
There may be devices with physical block size larger than 4k.
If dm-bufio sends I/O that is not aligned on physical block size,
performance is degraded.
The 4k minimum alignment limit is there because some SSDs report logical
and physical block size 512 despite having 4k internally - so dm-bufio
shouldn't send I/Os not aligned on 4k boundary, because they perform
badly (the SSD does read-modify-write for them).
Mikulas Patocka [Wed, 5 Nov 2025 15:02:36 +0000 (16:02 +0100)]
dm-crypt: enable DM_TARGET_ATOMIC_WRITES
Allow handling of bios with REQ_ATOMIC flag set.
Don't split these bios and fail them if they overrun the hard limit
"BIO_MAX_VECS << PAGE_SHIFT".
In order to simplify the code, this commit joins the logic that avoids
splitting emulated zone append bios with the logic that avoids
splitting atomic write bios.
Signed-off-by: John Garry <john.g.garry@oracle.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Tested-by: John Garry <john.g.garry@oracle.com>
Mikulas Patocka [Wed, 5 Nov 2025 15:01:33 +0000 (16:01 +0100)]
dm: test for REQ_ATOMIC in dm_accept_partial_bio()
Any bio with REQ_ATOMIC flag set should never be split or partially
completed, so BUG_ON() on this scenario in dm_accept_partial_bio() (whose
intent is to allow partial completions).
Also, we must reject atomic bio to targets that don't support them,
otherwise this BUG could be triggered by stray bios that have the
REQ_ATOMIC set.
Signed-off-by: John Garry <john.g.garry@oracle.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Tested-by: John Garry <john.g.garry@oracle.com>
There are two problems with the recursive correction:
1. It may cause denial-of-service. In fec_read_bufs, there is a loop that
has 253 iterations. For each iteration, we may call verity_hash_for_block
recursively. There is a limit of 4 nested recursions - that means that
there may be at most 253^4 (4 billion) iterations. Red Hat QE team
actually created an image that pushes dm-verity to this limit - and this
image just makes the udev-worker process get stuck in the 'D' state.
2. It doesn't work. In fec_read_bufs we store data into the variable
"fio->bufs", but fio bufs is shared between recursive invocations, if
"verity_hash_for_block" invoked correction recursively, it would
overwrite partially filled fio->bufs.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Reported-by: Guangwu Zhang <guazhang@redhat.com> Reviewed-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Eric Biggers <ebiggers@kernel.org>
__do_user_fault() may be called with indeterminent interrupt enable
state, which means we may be preemptive at this point. This causes
problems when calling harden_branch_predictor(). For example, when
called from a data abort, do_alignment_fault()->do_bad_area().
Move harden_branch_predictor() out of __do_user_fault() and into the
calling contexts.
Moving it into do_kernel_address_page_fault(), we can be sure that
interrupts will be disabled here.
Converting do_translation_fault() to use do_kernel_address_page_fault()
rather than do_bad_area() means that we keep branch predictor handling
for translation faults. Interrupts will also be disabled at this call
site.
do_sect_fault() needs special handling, so detect user mode accesses
to kernel-addresses, and add an explicit call to branch predictor
hardening.
Finally, add branch predictor hardening to do_alignment() for the
faulting case (user mode accessing kernel addresses) before interrupts
are enabled.
This should cover all cases where harden_branch_predictor() is called,
ensuring that it is always has interrupts disabled, also ensuring that
it is called early in each call path.
Reviewed-by: Xie Yuanbin <xieyuanbin1@huawei.com> Tested-by: Xie Yuanbin <xieyuanbin1@huawei.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
"During the execution of hash_name()->load_unaligned_zeropad(), a
potential memory access beyond the PAGE boundary may occur. For
example, when the filename length is near the PAGE_SIZE boundary.
This triggers a page fault, which leads to a call to
do_page_fault()->mmap_read_trylock(). If we can't acquire the lock,
we have to fall back to the mmap_read_lock() path, which calls
might_sleep(). This breaks RCU semantics because path lookup occurs
under an RCU read-side critical section."
This is seen with CONFIG_DEBUG_ATOMIC_SLEEP=y and CONFIG_KFENCE=y.
Kernel addresses (with the exception of the vectors/kuser helper
page) do not have VMAs associated with them. If the vectors/kuser
helper page faults, then there are two possibilities:
1. if the fault happened while in kernel mode, then we're basically
dead, because the CPU won't be able to vector through this page
to handle the fault.
2. if the fault happened while in user mode, that means the page was
protected from user access, and we want to fault anyway.
Thus, we can handle kernel addresses from any context entirely
separately without going anywhere near the mmap lock. This gives us
an entirely non-sleeping path for all kernel mode kernel address
faults.
As we handle the kernel address faults before interrupts are enabled,
this change has the side effect of improving the branch predictor
hardening, but does not completely solve the issue.
Reported-by: Zizhi Wo <wozizhi@huaweicloud.com> Reported-by: Xie Yuanbin <xieyuanbin1@huawei.com> Link: https://lore.kernel.org/r/20251126090505.3057219-1-wozizhi@huaweicloud.com Reviewed-by: Xie Yuanbin <xieyuanbin1@huawei.com> Tested-by: Xie Yuanbin <xieyuanbin1@huawei.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
ARM: allow __do_kernel_fault() to report execution of memory faults
Allow __do_kernel_fault() to detect the execution of memory, so we can
provide the same fault message as do_page_fault() would do. This is
required when we split the kernel address fault handling from the
main do_page_fault() code path.
Reviewed-by: Xie Yuanbin <xieyuanbin1@huawei.com> Tested-by: Xie Yuanbin <xieyuanbin1@huawei.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
* tag 'locking-futex-2025-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Store time as ktime_t in restart block
selftests/futex: Create test for robust list
selftests/futex: Skip tests if shmget unsupported
selftests/futex: Add newline to ksft_exit_fail_msg()
selftests/futex: Remove unused test_futex_mpol()
Linus Torvalds [Wed, 10 Dec 2025 07:57:24 +0000 (16:57 +0900)]
Merge tag 'kbuild-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild fix from Nathan Chancellor:
- Fix install-extmod-build when ccache is used via CC
* tag 'kbuild-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
kbuild: install-extmod-build: Properly fix CC expansion when ccache is used
Linus Torvalds [Wed, 10 Dec 2025 07:38:50 +0000 (16:38 +0900)]
Merge tag 'trace-v6.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix unused tracepoint build for modules only using exported
tracepoints
The tracepoint-update.c code that looks for unused tracepoints
expects if tracepoints are used then it will have tracepoints
defined. If not, it errors out which fails the build.
In most cases this the way things work. A tracepoint can't be used if
it is not defined. There is one exception; If a module only uses
tracepoints that are defined in other modules or the vmlinux proper,
where the tracepoints are exported. In this case, the
tracepoint-update.c code thinks tracepoints are used but not defined
and errors out, failing the build.
When tracepoint-update.c detects this case, if it is a module that is
being processed, exit out normally as it is a legitimate case.
- Add tracepoint-update.c to MAINTAINERS file
The tracepoint-update.c file is specific to tracing so add it to the
tracing subsystem in the MAINTAINERS file.
* tag 'trace-v6.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
MAINTAINERS: Add tracepoint-update.c to TRACING section
tracing: Fix unused tracepoints when module uses only exported ones
ChenXiaoSong [Thu, 6 Nov 2025 09:15:15 +0000 (17:15 +0800)]
smb: move SMB2 Notify Action Flags into common/smb2pdu.h
Some of these definitions are already in common/smb2pdu.h. Remove the
duplicate client side definitions, and add all SMB2 Notify Action Flags to
common header file.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Signed-off-by: Steve French <stfrench@microsoft.com>
ChenXiaoSong [Thu, 6 Nov 2025 07:46:56 +0000 (15:46 +0800)]
smb: move notify completion filter flags into common/smb2pdu.h
Some of these definitions are already in common/smb2pdu.h, remove the
duplicate client side definitions, and move FILE_NOTIFY_CHANGE_NAME to
common header file.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Signed-off-by: Steve French <stfrench@microsoft.com>
ChenXiaoSong [Mon, 8 Dec 2025 02:59:25 +0000 (10:59 +0800)]
smb/client: add parentheses to NT error code definitions containing bitwise OR operator
Use the following shell commands:
# Add "("
sed -i '/|/s/ 0x/ (0x/' fs/smb/client/nterr.h
# Add ")" if line does not end with a comment
sed -i '/|/ { /.*\*\/$/! s/$/)/ }' fs/smb/client/nterr.h
# Add ")" if line end with a comment
sed -i '/|/ s/[[:space:]]*\/\*/)&/' fs/smb/client/nterr.h
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org> Signed-off-by: Steve French <stfrench@microsoft.com>
ChenXiaoSong [Sun, 7 Dec 2025 01:22:53 +0000 (09:22 +0800)]
smb/client: fix NT_STATUS_UNABLE_TO_FREE_VM value
This was reported by the KUnit tests in the later patches.
See MS-ERREF 2.3.1 STATUS_UNABLE_TO_FREE_VM. Keep it consistent with the
value in the documentation.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org> Signed-off-by: Steve French <stfrench@microsoft.com>
ChenXiaoSong [Sun, 7 Dec 2025 01:17:57 +0000 (09:17 +0800)]
smb/client: fix NT_STATUS_DEVICE_DOOR_OPEN value
This was reported by the KUnit tests in the later patches.
See MS-ERREF 2.3.1 STATUS_DEVICE_DOOR_OPEN. Keep it consistent with the
value in the documentation.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org> Signed-off-by: Steve French <stfrench@microsoft.com>
ChenXiaoSong [Sun, 7 Dec 2025 01:13:06 +0000 (09:13 +0800)]
smb/client: fix NT_STATUS_NO_DATA_DETECTED value
This was reported by the KUnit tests in the later patches.
See MS-ERREF 2.3.1 STATUS_NO_DATA_DETECTED. Keep it consistent with the
value in the documentation.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org> Signed-off-by: Steve French <stfrench@microsoft.com>
Linus Torvalds [Wed, 10 Dec 2025 03:17:29 +0000 (12:17 +0900)]
Merge tag 'csky-for-linus-6.19' of https://github.com/c-sky/csky-linux
Pull csky updates from Guo Ren:
- Remove compile warning for CONFIG_SMP
- Fix __ASSEMBLER__ typo in headers
- Fix csky_cmpxchg_fixup
* tag 'csky-for-linus-6.19' of https://github.com/c-sky/csky-linux:
csky: Remove compile warning for CONFIG_SMP
csky: Replace __ASSEMBLY__ with __ASSEMBLER__ in uapi header
csky: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
csky: fix csky_cmpxchg_fixup not working
Steven Rostedt [Wed, 10 Dec 2025 01:40:23 +0000 (20:40 -0500)]
tracing: Fix unused tracepoints when module uses only exported ones
Building the KVM intel module failed to build with UT=1:
no __tracepoint_strings in file: arch/x86/kvm/kvm-intel.o
make[3]: *** [/work/git/test-linux.git/scripts/Makefile.modfinal:62: arch/x86/kvm/kvm-intel.ko] Error 1
The reason is that the module only uses the tracepoints defined and
exported by the main kvm module. The tracepoint-update.c code fails the
build if a tracepoint is used, but there's no tracepoints defined. But
this is acceptable in modules if the tracepoints are defined in the vmlinux
proper or another module and exported.
Do not fail to build if a tracepoint is used but no tracepoints are
defined if the code is a module. This should still never happen for the
vmlinux itself.
Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Link: https://patch.msgid.link/20251209204023.76941824@fedora Fixes: e30f8e61e2518 ("tracing: Add a tracepoint verification check at build time") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Linus Torvalds [Tue, 9 Dec 2025 22:48:05 +0000 (07:48 +0900)]
Merge tag 'i2c-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- general cleanups in bcm2835, designware, pcf8584, and stm32
- amd-mp2: fix device refcount
- designware: avoid interrupt storms caused by bad firmware
- spacemit: fix device detection failures
- new devices: Intel Diamond Rapids, Rockchip RK3506, Qualcomm
Kaanapali and MSM8953
- minor fixes to i801, core documentation, elektor Kconfig dependencies
- at24 updates: add new compatible for Belling BL24S64
* tag 'i2c-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (21 commits)
i2c: qcom-cci: Add msm8953 compatible
i2c: spacemit: fix detect issue
i2c: amd-mp2: fix reference leak in MP2 PCI device
i2c: i2c.h: fix a bad kernel-doc line
i2c: i2c-elektor: Allow building on SMP kernels
dt-bindings: i2c: qcom-cci: Document Kaanapali compatible
dt-bindings: i2c: qcom-cci: Document msm8953 compatible
dt-bindings: eeprom: at24: Add compatible for Belling BL24S64
i2c: i801: Fix the Intel Diamond Rapids features
i2c: pcf8584: Change pcf_doAdress() to pcf_send_address()
i2c: pcf8584: Make pcf_doAddress() function void
i2c: pcf8584: Move 'ret' variable inside for loop, goto out if ret < 0.
i2c: designware: Disable SMBus interrupts to prevent storms from mis-configured firmware
dt-bindings: i2c: i2c-rk3x: Add compatible string for RK3506
i2c: i801: Add support for Intel Diamond Rapids
i2c: stm32: Omit two variable reassignments in stm32_i2c_dma_request()
i2c: designware: Omit a variable reassignment in dw_i2c_plat_probe()
i2c: pcf8584: Fix do not use assignment inside if conditional
i2c: pcf8584: Remove debug macros from i2c-algo-pcf.c
i2c: busses: bcm2835: convert from round_rate() to determine_rate()
...
Linus Torvalds [Tue, 9 Dec 2025 21:38:17 +0000 (06:38 +0900)]
Merge tag 'platform-drivers-x86-v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Ilpo Järvinen:
- acer-wmi: Add PH16-72, PHN16-72, and PT14-51 fan control support
- acpi: platform_profile: Add max-power profile option (power draw
limited by the cooling hardware, may exceed battery power draw limit
when on AC power)
- amd/hsmp: Allow more than one data-fabric per socket
- asus-armoury: Add WMI attributes driver to expose miscellaneous WMI
functions through fw_attributes (deprecates the custom BIOS features
interface through asus-wmi)
- asus-wmi: Use brightness_set_blocking() for kbd led
- fs/nls:
- Fix utf16 to utf8 string conversion when output size restricted
- Improve error code consistency for utf8 to utf32 conversions
- ideapad-laptop: Fast (Rapid Charge) charge type support
- intel/hid: Add Dell Pro Rugged 10/12 tablet to VGBS DMI quirks
- intel/pmc:
- Arrow Lake telemetry GUID improvements
- Add support for Wildcat Lake PMC information
- intel_pmc_ipc: Fix ACPI buffer memleak
- intel/punit_ipc: Fix memory corruption
- intel/vsec: Wildcat Lake PMT telemetry support
- lenovo-wmi-gamezone: Map "Extreme" performance mode to max-power
- lg-laptop: Add support for the HDAP opregion field
- serial-multi-instantiate: Add IRQ_RESOURCE_OPT for IRQ missing
projects
- thinkpad-t14s-ec: Improve suspend/resume support (lid LEDs, keyboard
backlight)
- uniwill: Add Uniwill laptop driver
- wmi: Move under drivers/platform/wmi as non-x86 WMI support is around
the corner and other WMI features will require adding more C files as
well
- tools/power/x86/intel-speed-select: v1.24
- Check feature status to check if the feature enablement was
successful
- Reset SST-TF bucket structure to display valid bucket info
* tag 'platform-drivers-x86-v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (73 commits)
tools/power/x86/intel-speed-select: v1.24 release
tools/power/x86/intel-speed-select: Reset isst_turbo_freq_info for invalid buckets
tools/power/x86/intel-speed-select: Check feature status
platform/x86: asus-wmi: use brightness_set_blocking() for kbd led
fs/nls: Fix inconsistency between utf8_to_utf32() and utf32_to_utf8()
platform/x86: asus-armoury: add support for GA503QR
platform/x86: intel_pmc_ipc: fix ACPI buffer memory leak
platform/x86: hp-wmi: Order DMI board name arrays
platform/x86/intel/hid: Add Dell Pro Rugged 10/12 tablet to VGBS DMI quirks
platform: surface: replace use of system_wq with system_percpu_wq
platform: x86: replace use of system_wq with system_percpu_wq
platform/surface: acpi-notify: add WQ_PERCPU to alloc_workqueue users
platform/x86: wmi-gamezone: Add Legion Go 2 Quirks
platform/x86: lenovo-wmi-gamezone Use max-power rather than balanced-performance
acpi: platform_profile - Add max-power profile option
platform/x86/amd/pmf: Use devm_mutex_init() for mutex initialization
platform/x86/amd/pmf: Add BIOS_INPUTS_MAX macro to replace hardcoded array size
platform/x86: serial-multi-instantiate: Add IRQ_RESOURCE_OPT for IRQ missing projects
platform/x86/amd/pmf: Refactor repetitive BIOS output handling
platform/x86/uniwill: Add TUXEDO devices
...
Linus Torvalds [Tue, 9 Dec 2025 21:29:40 +0000 (06:29 +0900)]
Merge tag 'pm-6.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"Fix a runtime PM unit test added during the 6.18 development cycle and
change the pm_runtime_barrier() return type to void (Brian Norris)"
* tag 'pm-6.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
coccinelle: Drop pm_runtime_barrier() error code checks
PM: runtime: Make pm_runtime_barrier() return void
PM: runtime: Stop checking pm_runtime_barrier() return code
lockref: add a __cond_lock annotation for lockref_put_or_lock
Add a cond_lock annotation for lockref_put_or_lock to make sparse
happy with using it. Note that for this the return value has to be
double-inverted as the return value convention of lockref_put_or_lock
is inverted compared to _trylock conventions expected by __cond_lock,
as lockref_put_or_lock returns true when it did not need to take the
lock.
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 9 Dec 2025 20:41:10 +0000 (05:41 +0900)]
Merge tag 'auto-type-conversion-for-v6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-auto
Pull __auto_type to auto conversion from Peter Anvin:
"Convert '__auto_type' to 'auto', defining a macro for 'auto' unless
C23+ is in use"
* tag 'auto-type-conversion-for-v6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-auto:
tools/virtio: replace "__auto_type" with "auto"
selftests/bpf: replace "__auto_type" with "auto"
arch/x86: replace "__auto_type" with "auto"
arch/nios2: replace "__auto_type" and adjacent equivalent with "auto"
fs/proc: replace "__auto_type" with "const auto"
include/linux: change "__auto_type" to "auto"
compiler_types.h: add "auto" as a macro for "__auto_type"
ARM: group is_permission_fault() with is_translation_fault()
Group is_permission_fault() with is_translation_fault(), which is
needed to use is_permission_fault() in __do_kernel_fault(). As
this is static inline, there is no need for this to be under
CONFIG_MMU.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Liyuan Pang [Tue, 9 Dec 2025 02:19:45 +0000 (03:19 +0100)]
ARM: 9464/1: fix input-only operand modification in load_unaligned_zeropad()
In the inline assembly inside load_unaligned_zeropad(), the "addr" is
constrained as input-only operand. The compiler assumes that on exit
from the asm statement these operands contain the same values as they
had before executing the statement, but when kernel page fault happened, the assembly fixup code "bic %2 %2, #0x3" modify the value of "addr", which may lead to an unexpected behavior.
Use a temporary variable "tmp" to handle it, instead of modifying the
input-only operand, just like what arm64's load_unaligned_zeropad()
does.
Fixes: b9a50f74905a ("ARM: 7450/1: dcache: select DCACHE_WORD_ACCESS for little-endian ARMv6+ CPUs") Co-developed-by: Xie Yuanbin <xieyuanbin1@huawei.com> Signed-off-by: Xie Yuanbin <xieyuanbin1@huawei.com> Signed-off-by: Liyuan Pang <pangliyuan1@huawei.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
- cleanup, including restructuring some of the transport layer for the
client to make it clearer, and cleanup of status code table to be
more consistent with protocol documentation
- fixes for reads that start beyond end of file use cases
- fix to backoff reconnects to reduce reconnect storms
- locking improvement for getting mid entries
- fixes for missing status code error mappings
- performance improvement for status code to error mappings
* tag 'v6.19-rc-part1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: (22 commits)
smb/client: update some SMB2 status strings
cifs: Remove dead function prototypes
smb/client: add two elements to smb2_error_map_table array
smb: rename to STATUS_SMB_NO_PREAUTH_INTEGRITY_HASH_OVERLAP
smb/client: remove unused elements from smb2_error_map_table array
smb/client: reduce loop count in map_smb2_to_linux_error() by half
smb: client: Add tracepoint for krb5 auth
smb: client: improve error message when creating SMB session
smb: client: relax session and tcon reconnect attempts
cifs: Fix handling of a beyond-EOF DIO/unbuffered read over SMB2
cifs: client: allow changing multichannel mount options on remount
cifs: Do some preparation prior to organising the function declarations
cifs: Add a tracepoint to log EIO errors
cifs: Don't need state locking in smb2_get_mid_entry()
cifs: Remove the server pointer from smb_message
cifs: Fix specification of function pointers
cifs: Replace SendReceiveBlockingLock() with SendReceive() plus flags
cifs: Clean up some places where an extra kvec[] was required for rfc1002
cifs: Make smb1's SendReceive() wrap cifs_send_recv()
cifs: Remove the RFC1002 header from smb_hdr
...
Linus Torvalds [Tue, 9 Dec 2025 03:06:20 +0000 (12:06 +0900)]
Merge tag 'f2fs-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"This series focuses on minor clean-ups and performance optimizations
across sysfs, documentation, debugfs, tracepoints, slab allocation,
and GC. Furthermore, it resolves several corner-case bugs caught by
xfstests, as well as issues related to 16KB page support and
f2fs_enable_checkpoint.
Enhancement:
- wrap ASCII tables in literal blocks to fix LaTeX build
- optimize trace_f2fs_write_checkpoint with enums
- support to show curseg.next_blkoff in debugfs
- add a sysfs entry to show max open zones
- add fadvise tracepoint
- use global inline_xattr_slab instead of per-sb slab cache
- set default valid_thresh_ratio to 80 for zoned devices
- maintain one time GC mode is enabled during whole zoned GC cycle
Bug fix:
- ensure node page reads complete before f2fs_put_super() finishes
- do not account invalid blocks in get_left_section_blocks()
- revert summary entry count from 2048 to 512 in 16kb block support
- detect recoverable inode during dryrun of find_fsync_dnodes()
- fix age extent cache insertion skip on counter overflow
- add sanity checks before unlinking and loading inodes
- ensure minimum trim granularity accounts for all devices
- block cache/dio write during f2fs_enable_checkpoint()
- propagate error from f2fs_enable_checkpoint()
- invalidate dentry cache on failed whiteout creation
- avoid updating compression context during writeback
- avoid updating zero-sized extent in extent cache
- avoid potential deadlock"
* tag 'f2fs-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (39 commits)
f2fs: ignore discard return value
f2fs: optimize trace_f2fs_write_checkpoint with enums
f2fs: fix to not account invalid blocks in get_left_section_blocks()
f2fs: support to show curseg.next_blkoff in debugfs
docs: f2fs: wrap ASCII tables in literal blocks to fix LaTeX build
f2fs: expand scalability of f2fs mount option
f2fs: change default schedule timeout value
f2fs: introduce f2fs_schedule_timeout()
f2fs: use memalloc_retry_wait() as much as possible
f2fs: add a sysfs entry to show max open zones
f2fs: wrap all unusable_blocks_per_sec code in CONFIG_BLK_DEV_ZONED
f2fs: simplify list initialization in f2fs_recover_fsync_data()
f2fs: revert summary entry count from 2048 to 512 in 16kb block support
f2fs: fix to detect recoverable inode during dryrun of find_fsync_dnodes()
f2fs: fix return value of f2fs_recover_fsync_data()
f2fs: add fadvise tracepoint
f2fs: fix age extent cache insertion skip on counter overflow
f2fs: Add sanity checks before unlinking and loading inodes
f2fs: Rename f2fs_unlink exit label
f2fs: ensure minimum trim granularity accounts for all devices
...
spi: microchip-core: Fix an error handling path in mchp_corespi_probe()
mchp_corespi_init() calls mchp_corespi_enable_ints(), so
mchp_corespi_disable_ints() should be called if an error occurs after
calling mchp_corespi_init(), as already done in the remove function.
regulator: spacemit: Align input supply name with the DT binding
The Device Tree binding schema for the SpacemiT P1 PMIC defines the main
input supply property as "vin-supply", but the driver defines the supply
name for BUCK and ALDO regulators as "vcc".
This causes the regulator core to lookup for a non-existent "vcc-supply".
Rename the supply from "vcc" to "vin", to match the DT binding and ensure
that the regulators input supplies are correctly resolved.
After this change, the regulators supply hierarchy is correctly reported:
Linus Torvalds [Tue, 9 Dec 2025 00:07:28 +0000 (09:07 +0900)]
Merge tag 'io_uring-6.19-20251208' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring updates from Jens Axboe:
"Followup set of fixes for io_uring for this merge window. These are
either later fixes, or cleanups that don't make sense to defer. This
pull request contains:
- Fix for a recent regression in io-wq worker creation
- Tracing cleanup
- Use READ_ONCE/WRITE_ONCE consistently for ring mapped kbufs. Mostly
for documentation purposes, indicating that they are shared with
userspace
- Fix for POLL_ADD losing a completion, if the request is updated and
now is triggerable - eg, if POLLIN is set with the updated, and the
polled file is readable
- In conjunction with the above fix, also unify how poll wait queue
entries are deleted with the head update. We had 3 different spots
doing both the list deletion and head write, with one of them
nicely documented. Abstract that into a helper and use it
consistently
- Small series from Joanne fixing an issue with buffer cloning, and
cleaning up the arg validation"
* tag 'io_uring-6.19-20251208' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring/poll: unify poll waitqueue entry and list removal
io_uring/kbuf: use WRITE_ONCE() for userspace-shared buffer ring fields
io_uring/kbuf: use READ_ONCE() for userspace-mapped memory
io_uring/rsrc: fix lost entries after cloned range
io_uring/rsrc: rename misleading src_node variable in io_clone_buffers()
io_uring/rsrc: clean up buffer cloning arg validation
io_uring/trace: rename io_uring_queue_async_work event "rw" field
io_uring/io-wq: always retry worker create on ERESTART*
io_uring/poll: correctly handle io_poll_add() return value on update
Linus Torvalds [Mon, 8 Dec 2025 23:53:24 +0000 (08:53 +0900)]
Merge tag 'block-6.19-20251208' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block updates from Jens Axboe:
"Followup set of fixes and updates for block for the 6.19 merge window.
NVMe had some late minute debates which lead to dropping some patches
from that tree, which is why the initial PR didn't have NVMe included.
It's here now. This pull request contains:
- Fix a memory leak in the discard ioctl code, if the task is being
interrupted by a signal at just the wrong time
- Zoned write plugging fixes
- Add ioctls for for persistent reservations
- Enable per-cpu bio caching by default
- Various little fixes and tweaks"
* tag 'block-6.19-20251208' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (27 commits)
nvme-fabrics: add ENOKEY to no retry criteria for authentication failures
nvme-auth: use kvfree() for memory allocated with kvcalloc()
nvmet-tcp: use kvcalloc for commands array
nvmet-rdma: use kvcalloc for commands and responses arrays
nvme: fix typo error in nvme target
nvmet-fc: use pr_* print macros instead of dev_*
nvmet-fcloop: remove unused lsdir member.
nvmet-fcloop: check all request and response have been processed
nvme-fc: check all request and response have been processed
block: fix memory leak in __blkdev_issue_zero_pages
block: fix comment for op_is_zone_mgmt() to include RESET_ALL
block: Clear BLK_ZONE_WPLUG_PLUGGED when aborting plugged BIOs
blk-mq: Abort suspend when wakeup events are pending
blk-mq: add blk_rq_nr_bvec() helper
block: add IOC_PR_READ_RESERVATION ioctl
block: add IOC_PR_READ_KEYS ioctl
nvme: reject invalid pr_read_keys() num_keys values
scsi: sd: reject invalid pr_read_keys() num_keys values
block: enable per-cpu bio cache by default
block: use bio_alloc_bioset for passthru IO by default
...
Linus Torvalds [Mon, 8 Dec 2025 23:46:10 +0000 (08:46 +0900)]
Merge tag 'hwmon-for-v6.19-take-2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes Guenter Roeck:
- Documentation: Fix link to g762 devicetree binding
- emc2305: Fix devicetree refcount leak and double put
- dell-smm: Fix channel-index off-by-one error
- w83791d: Convert macros to functions to avoid TOCTOU
* tag 'hwmon-for-v6.19-take-2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
docs: hwmon: fix link to g762 devicetree binding
hwmon: (emc2305) fix device node refcount leak in error path
hwmon: (emc2305) fix double put in emc2305_probe_childs_from_dt
hwmon: (dell-smm) Fix off-by-one error in dell_smm_is_visible()
hwmon: (w83791d) Convert macros to functions to avoid TOCTOU
H. Peter Anvin [Fri, 18 Jul 2025 18:35:00 +0000 (11:35 -0700)]
compiler_types.h: add "auto" as a macro for "__auto_type"
"auto" was defined as a keyword back in the K&R days, but as a storage
type specifier. No one ever used it, since it was and is the default
storage type for local variables.
C++11 recycled the keyword to allow a type to be declared based on the
type of an initializer. This was finally adopted into standard C in
C23.
gcc and clang provide the "__auto_type" alias keyword as an extension
for pre-C23, however, there is no reason to pollute the bulk of the
source base with this temporary keyword; instead define "auto" as a
macro unless the compiler is running in C23+ mode.
This macro is added in <linux/compiler_types.h> because that header is
included in some of the tools headers, wheres <linux/compiler.h> is
not as it has a bunch of very kernel-specific things in it.
[ Cc: stable to reduce potential backporting burden. ]
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com> Acked-by: Miguel Ojeda <ojeda@kernel.org> Cc: <stable@kernel.org>
Sam James [Fri, 5 Dec 2025 08:14:57 +0000 (08:14 +0000)]
alpha: don't reference obsolete termio struct for TC* constants
Similar in nature to ab107276607af90b13a5994997e19b7b9731e251. glibc-2.42
drops the legacy termio struct, but the ioctls.h header still defines some
TC* constants in terms of termio (via sizeof). Hardcode the values instead.
This fixes building Python for example, which falls over like:
./Modules/termios.c:1119:16: error: invalid application of 'sizeof' to incomplete type 'struct termio'
Thomas Huth [Fri, 21 Nov 2025 10:00:36 +0000 (11:00 +0100)]
alpha: Replace __ASSEMBLY__ with __ASSEMBLER__ in the alpha headers
While the GCC and Clang compilers already define __ASSEMBLER__
automatically when compiling assembly code, __ASSEMBLY__ is a
macro that only gets defined by the Makefiles in the kernel.
This can be very confusing when switching between userspace
and kernelspace coding, or when dealing with uapi headers that
rather should use __ASSEMBLER__ instead. So let's standardize now
on the __ASSEMBLER__ macro that is provided by the compilers.
This is a completely mechanical patch (done with a simple "sed -i"
statement).
Cc: Richard Henderson <richard.henderson@linaro.org> Cc: Matt Turner <mattst88@gmail.com> Cc: linux-alpha@vger.kernel.org Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Magnus Lindholm <linmag7@gmail.com> Link: https://lore.kernel.org/r/20251121100044.282684-2-thuth@redhat.com Signed-off-by: Magnus Lindholm <linmag7@gmail.com>
Linus Torvalds [Mon, 8 Dec 2025 21:45:00 +0000 (06:45 +0900)]
Merge tag 'pinctrl-v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"The technical details below. For me the CIX Semi and Axis
Communications ARTPEC-9 SoCs were the most interesting new drivers in
this merge window.
Core changes:
- Handle per-direction skew control in the generic pin config
- Drop the pointless subsystem boilerplate banner message during
boot. Less noise in the console. It's available as debug message if
someone really want it
New drivers:
- Samsung Exynos 8890 SoC support
- Samsung Exynos derived Axis Communications ARTPEC-9 SoC support.
These guys literally live next door to me, ARTPEC spells out "Axis
Real-Time Picture Encoding Chip" and is tailored for camera image
streams and is something they have evolved for a quarter of a
century
- Mediatek MT6878 SoC support
- Qualcomm Glymur PMIC support (mostly just compatible strings)
- Qualcomm Kaanapali SoC TLMM support
- Microchip pic64gx "gpio2" SoC support
- Microchip Polarfire "iomux0" SoC support
- CIX Semiconductors SKY1 SoC support
- Rockchip RK3506 SoC support
- Airhoa AN7583 chip support
Improvements:
- Improvements for ST Microelectronics STM32 handling of skew
settings so input and output can have different skew settings
- A whole bunch of device tree binding cleanups: Marvell Armada and
Berlin, Actions Semiconductor S700 and S900, Broadcom Northstar 2
(NS2), Bitmain BM1880 and Spreadtrum SC9860 are moved over to
schema"
* tag 'pinctrl-v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (107 commits)
pinctrl: add CONFIG_OF dependencies for microchip drivers
pinctrl: starfive: use dynamic GPIO base allocation
pinctrl: single: Fix incorrect type for error return variable
MAINTAINERS: Change Linus Walleij mail address
pinctrl: cix: Fix obscure dependency
dt-bindings: pinctrl: cix,sky1-pinctrl: Drop duplicate newline
dt-bindings: pinctrl: aspeed,ast2600-pinctrl: Add PCIe RC PERST# group
pinctrl: airoha: Fix AIROHA_PINCTRL_CONFS_DRIVE_E2 in an7583_pinctrl_match_data
pinctrl: airoha: fix pinctrl function mismatch issue
pinctrl: cherryview: Convert to use intel_gpio_add_pin_ranges()
pinctrl: intel: Export intel_gpio_add_pin_ranges()
pinctrl: renesas: rzg2l: Refactor OEN register PWPR handling
pinctrl: airoha: convert comma to semicolon
pinctrl: elkhartlake: Switch to INTEL_GPP() macro
pinctrl: cherryview: Switch to INTEL_GPP() macro
pinctrl: emmitsburg: Switch to INTEL_GPP() macro
pinctrl: denverton: Switch to INTEL_GPP() macro
pinctrl: cedarfork: Switch to INTEL_GPP() macro
pinctrl: airoha: add support for Airoha AN7583 PINs
dt-bindings: pinctrl: airoha: Document AN7583 Pin Controller
...
Linus Torvalds [Mon, 8 Dec 2025 21:35:53 +0000 (06:35 +0900)]
Merge tag 'dmaengine-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
- Renesas driver conversion to RUNTIME_PM_OPS() etc
- Dropping module alias on bunch of drivers
- GPI Block event interrupt support in Qualcomm driver and updates to
I2C driver as well
* tag 'dmaengine-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (23 commits)
dt-bindings: dma: xilinx: Simplify dma-coherent property
dmaengine: fsl-edma: configure tcd attr with separate src and dst settings
dmaengine: st_fdma: drop unused module alias
dmaengine: bcm2835: enable compile testing
dmaengine: tegra210-adma: drop unused module alias
dmaengine: sprd: drop unused module alias
dmaengine: mmp_tdma: drop unnecessary OF node check in remove
dmaengine: mmp_tdma: drop unused module alias
dmaengine: k3dma: drop unused module alias
dmaengine: fsl-qdma: drop unused module alias
dmaengine: fsl-edma: drop unused module alias
dmaengine: dw: drop unused module alias
dmaengine: bcm2835: drop unused module alias
dmaengine: at_hdmac: add COMPILE_TEST support
dmaengine: at_hdmac: fix formats under 64-bit
i2c: i2c-qcom-geni: Add Block event interrupt support
dmaengine: qcom: gpi: Add GPI Block event interrupt support
dmaengine: idxd: drain ATS translations when disabling WQ
dmaengine: sh: Kconfig: Drop ARCH_R7S72100/ARCH_RZG2L dependency
dmaengine: rcar-dmac: Convert to NOIRQ_SYSTEM_SLEEP/RUNTIME_PM_OPS()
...
Linus Torvalds [Mon, 8 Dec 2025 21:31:47 +0000 (06:31 +0900)]
Merge tag 'phy-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Pull phy updates from Vinod Koul:
"Core:
- Drop Kishon as maintainer, thanks to him for helping, move to
credits and add Neil to help with reviews.
- Add new phy_notify_stat to notify phy from controllers during the
runtime transitions and usage in samsung phy
New hardware support:
- Renesas RZ/G3E USB3.0 driver
- NXP Support TJA1048/TJA1051 CAN phy
- Rockchip support for rk3506 dsi dphy
- Qualcomm Glymur QMP PCIe PHY support
Updates:
- PM support for rcar-gen3-usb2 driver
- Samsung HDMI/eDP Transmitter Combo PHY updates
- Freescale imx8mq support for alternate reference clock"
* tag 'phy-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (40 commits)
MAINTAINERS: phy: Add Neil Armstrong as reviewers for phy subsystem
MAINTAINERS: phy: Move Kishon Vijay Abraham I to credits
phy: fsl-imx8mq-usb: support alternate reference clock
dt-bindings: phy: imx8mq-usb: add alternate reference clock
phy: rockchip: samsung-hdptx: Prevent Inter-Pair Skew from exceeding the limits
phy: rockchip: samsung-hdptx: Reduce ROPLL loop bandwidth
phy: rockchip: samsung-hdptx: Fix reported clock rate in high bpc mode
phy: ti: gmii-sel: Add a sanity check on the phy_id
phy: qcom: qmp-pcie: Add support for Glymur PCIe Gen5x4 PHY
phy: qcom-qmp: pcs: Add v8.50 register offsets
dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: Document the Glymur QMP PCIe PHY
dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: Restrict resets per each device
phy: freescale: Initialize priv->lock
phy: renesas: Remove unneeded semicolons
phy: qcom: m31-eusb2: Update init sequence to set PHY_ENABLE
phy: qcom: qmp-combo: get the USB3 & DisplayPort lanes mapping from DT
dt-bindings: phy: qcom,sc8280xp-qmp-usb43dp-phy: Document lanes mapping when not using in USB-C complex
phy: rockchip: naneng-combphy: Fix PCIe L1ss support RK3562
phy: rockchip: naneng-combphy: Fix PCIe L1ss support RK3528
phy: renesas: rcar-gen3-usb2: Add suspend/resume support
...
Linus Torvalds [Mon, 8 Dec 2025 21:10:17 +0000 (06:10 +0900)]
Merge tag 'hyperv-next-signed-20251207' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv updates from Wei Liu:
- Enhancements to Linux as the root partition for Microsoft Hypervisor:
- Support a new mode called L1VH, which allows Linux to drive the
hypervisor running the Azure Host directly
- Support for MSHV crash dump collection
- Allow Linux's memory management subsystem to better manage guest
memory regions
- Fix issues that prevented a clean shutdown of the whole system on
bare metal and nested configurations
- ARM64 support for the MSHV driver
- Various other bug fixes and cleanups
- Add support for Confidential VMBus for Linux guest on Hyper-V
- Secure AVIC support for Linux guests on Hyper-V
- Add the mshv_vtl driver to allow Linux to run as the secure kernel in
a higher virtual trust level for Hyper-V
* tag 'hyperv-next-signed-20251207' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (58 commits)
mshv: Cleanly shutdown root partition with MSHV
mshv: Use reboot notifier to configure sleep state
mshv: Add definitions for MSHV sleep state configuration
mshv: Add support for movable memory regions
mshv: Add refcount and locking to mem regions
mshv: Fix huge page handling in memory region traversal
mshv: Move region management to mshv_regions.c
mshv: Centralize guest memory region destruction
mshv: Refactor and rename memory region handling functions
mshv: adjust interrupt control structure for ARM64
Drivers: hv: use kmalloc_array() instead of kmalloc()
mshv: Add ioctl for self targeted passthrough hvcalls
Drivers: hv: Introduce mshv_vtl driver
Drivers: hv: Export some symbols for mshv_vtl
static_call: allow using STATIC_CALL_TRAMP_STR() from assembly
mshv: Extend create partition ioctl to support cpu features
mshv: Allow mappings that overlap in uaddr
mshv: Fix create memory region overlap check
mshv: add WQ_PERCPU to alloc_workqueue users
Drivers: hv: Use kmalloc_array() instead of kmalloc()
...
Heiko Carstens [Mon, 8 Dec 2025 12:40:56 +0000 (13:40 +0100)]
s390/bug: Add missing alignment
All objects are supposed to have a minimal alignment of two, since a
couple of instructions only work with even addresses. Add the missing
align statement for the file string.
Fixes: 6584ff203aec ("bugs/s390: Use 'cond_str' in __EMIT_BUG()") Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Hans de Goede [Sun, 7 Dec 2025 18:47:56 +0000 (19:47 +0100)]
dma-mapping: Fix DMA_BIT_MASK() macro being broken
After commit a50f7456f853 ("dma-mapping: Allow use of DMA_BIT_MASK(64) in
global scope"), the DMA_BIT_MASK() macro is broken when passed non trivial
statements for the value of 'n'. This is caused by the new version missing
parenthesis around 'n' when evaluating 'n'.
One example of this breakage is the IPU6 driver now crashing due to
it getting DMA-addresses with address bit 32 set even though it has
tried to set a 32 bit DMA mask.
The IPU6 CSI2 engine has a DMA mask of either 31 or 32 bits depending
on if it is in secure mode or not and it sets this masks like this:
With the -1 only being applied in the non secure case, causing
the secure mode mask to be one 1 bit too large.
Fixes: a50f7456f853 ("dma-mapping: Allow use of DMA_BIT_MASK(64) in global scope") Cc: Sakari Ailus <sakari.ailus@linux.intel.com> Cc: James Clark <james.clark@linaro.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/r/20251207184756.97904-1-johannes.goede@oss.qualcomm.com
Dave Kleikamp [Tue, 2 Dec 2025 15:28:10 +0000 (09:28 -0600)]
dma/pool: eliminate alloc_pages warning in atomic_pool_expand
atomic_pool_expand iteratively tries the allocation while decrementing
the page order. There is no need to issue a warning if an attempted
allocation fails.
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Fixes: d7e673ec2c8e ("dma-pool: Only allocate from CMA when in same memory zone")
[mszyprow: fixed typo] Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/r/20251202152810.142370-1-dave.kleikamp@oracle.com
Linus Torvalds [Mon, 8 Dec 2025 02:25:14 +0000 (11:25 +0900)]
Merge tag 'i3c/for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull i3c updates from Alexandre Belloni:
"HDR support has finally been added. mipi-i3c-hci has been reworked and
Intel Nova Lake-S support has been added.
Subsystem:
- Add HDR transfer support
Drivers:
- dw: fix bus hang on Agilex5
- mipi-i3c-hci: Intel Nova Lake-S support, IOMMU support
- svc: HDR support"
* tag 'i3c/for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (28 commits)
regmap: i3c: switch to use i3c_xfer from i3c_priv_xfer
net: mctp i3c: switch to use i3c_xfer from i3c_priv_xfer
hwmon: (lm75): switch to use i3c_xfer from i3c_priv_xfer
i3c: document i3c_xfers
i3c: fix I3C_SDR bit number
i3c: master: svc: Add basic HDR mode support
i3c: master: svc: Replace bool rnw with union for HDR support
i3c: Switch to use new i3c_xfer from i3c_priv_xfer
i3c: Add HDR API support
i3c: master: add WQ_PERCPU to alloc_workqueue users
i3c: master: Remove i3c_device_free_ibi from i3c_device_remove
i3c: mipi-i3c-hci-pci: Set d3cold_delay to 0 for Intel controllers
i3c: mipi-i3c-hci-pci: Add LTR support for Intel controllers
i3c: mipi-i3c-hci-pci: Add exit callback
i3c: mipi-i3c-hci-pci: Change callback parameter
i3c: mipi-i3c-hci-pci: Allocate a structure for mipi_i3c_hci_pci device information
i3c: mipi-i3c-hci-pci: Factor out intel_reset()
i3c: mipi-i3c-hci-pci: Factor out private registers ioremapping
i3c: mipi-i3c-hci-pci: Constify driver data
i3c: mipi-i3c-hci-pci: Use readl_poll_timeout()
...
Troy Mitchell [Thu, 13 Nov 2025 13:21:50 +0000 (21:21 +0800)]
i2c: spacemit: fix detect issue
This commit addresses two issues causing i2c detect to fail.
The identified issues are:
1. Incorrect error handling for BED (Bus Error No ACK/NAK):
Before this commit, Both ALD (Arbitration Loss Detected) and
BED returned -EAGAIN.
2. Missing interrupt status clear after initialization in xfer():
On the K1 SoC, simply fixing the first issue changed the error
from -EAGAIN to -ETIMEOUT. Through tracing, it was determined that
this is likely due to MSD (Master Stop Detected) latency issues.
That means the MSD bit in the ISR may still be set on the next transfer.
As a result, the controller won't work — we can see from the scope that
it doesn't issue any signal.
(This only occurs during rapid consecutive I2C transfers.
That explains why the issue only shows up with i2cdetect.)
With these two fixes, i2c device detection now functions correctly on the K1 SoC.
Ma Ke [Wed, 22 Oct 2025 09:54:02 +0000 (17:54 +0800)]
i2c: amd-mp2: fix reference leak in MP2 PCI device
In i2c_amd_probe(), amd_mp2_find_device() utilizes
driver_find_next_device() which internally calls driver_find_device()
to locate the matching device. driver_find_device() increments the
reference count of the found device by calling get_device(), but
amd_mp2_find_device() fails to call put_device() to decrement the
reference count before returning. This results in a reference count
leak of the PCI device each time i2c_amd_probe() is executed, which
may prevent the device from being properly released and cause a memory
leak.
Found by code review.
Cc: stable@vger.kernel.org Fixes: 529766e0a011 ("i2c: Add drivers for the AMD PCIe MP2 I2C controller") Signed-off-by: Ma Ke <make24@iscas.ac.cn> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Link: https://lore.kernel.org/r/20251022095402.8846-1-make24@iscas.ac.cn
Linus Torvalds [Mon, 8 Dec 2025 00:38:52 +0000 (09:38 +0900)]
Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This is entirely SoC clk drivers.
The majority diff wise is for the new Rockchip and Qualcomm clk
drivers which is mostly lines and lines of data structures to describe
the clk hardware in these SoCs. Beyond those two, Renesas continues to
incrementally add clks to their SoC drivers, causing them to show up
higher in the diffstat this time because they added quite a few clks
all over the place.
Overall it is a semi-quiet release that has some new clk drivers and
the usual fixes for clock data that was wrong or missing and
non-critical cleanups that plug error paths or fix typos.
New Drivers:
- Qualcomm IPQ5424 Network Subsystem Clock Controller
- Qualcomm SM8750 Video Clock Controller
- Rockchip RV1126B and RK3506 clock drivers
- i.MX8ULP SIM LPAV clock driver
- Samsung ACPM (firmware interface) clock driver
- Altera Agilex5 clock driver"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (117 commits)
clk: keystone: fix compile testing
clk: keystone: syscon-clk: fix regmap leak on probe failure
clk: qcom: Mark camcc_sm7150_hws static
clk: samsung: exynos-clkout: Assign .num before accessing .hws
clk: rockchip: Add clock and reset driver for RK3506
dt-bindings: clock: rockchip: Add RK3506 clock and reset unit
clk: actions: Fix discarding const qualifier by 'container_of' macro
clk: spacemit: Set clk_hw_onecell_data::num before using flex array
clk: visconti: Add VIIF clocks
dt-bindings: clock: tmpv770x: Add VIIF clocks
dt-bindings: clock: tmpv770x: Remove definition of number of clocks
clk: visconti: Do not define number of clocks in bindings
clk: rockchip: Add clock controller for the RV1126B
dt-bindings: clock, reset: Add support for rv1126b
clk: rockchip: Implement rockchip_clk_register_armclk_multi_pll()
clk: qcom: x1e80100-dispcc: Add USB4 router link resets
dt-bindings: clock: qcom: x1e80100-dispcc: Add USB4 router link resets
clk: qcom: videocc-sm8750: Add video clock controller driver for SM8750
dt-bindings: clock: qcom: Add SM8750 video clock controller
clk: qcom: branch: Extend invert logic for branch2 mem clocks
...
Pei Xiao [Fri, 5 Dec 2025 03:15:13 +0000 (11:15 +0800)]
hwmon: (emc2305) fix device node refcount leak in error path
The for_each_child_of_node() macro automatically manages device node
reference counts during normal iteration. However, when breaking out
of the loop early with return, the current iteration's node is not
automatically released, leading to a reference count leak.
Fix this by adding of_node_put(child) before returning from the loop
when emc2305_set_single_tz() fails.
This issue could lead to memory leaks over multiple probe cycles.
Armin Wolf [Wed, 3 Dec 2025 20:21:09 +0000 (21:21 +0100)]
hwmon: (dell-smm) Fix off-by-one error in dell_smm_is_visible()
The documentation states that on machines supporting only global
fan mode control, the pwmX_enable attributes should only be created
for the first fan channel (pwm1_enable, aka channel 0).
Fix the off-by-one error caused by the fact that fan channels have
a zero-based index.
Cc: stable@vger.kernel.org Fixes: 1c1658058c99 ("hwmon: (dell-smm) Add support for automatic fan mode") Signed-off-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20251203202109.331528-1-W_Armin@gmx.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Gui-Dong Han [Tue, 2 Dec 2025 18:01:05 +0000 (02:01 +0800)]
hwmon: (w83791d) Convert macros to functions to avoid TOCTOU
The macro FAN_FROM_REG evaluates its arguments multiple times. When used
in lockless contexts involving shared driver data, this leads to
Time-of-Check to Time-of-Use (TOCTOU) race conditions, potentially
causing divide-by-zero errors.
Convert the macro to a static function. This guarantees that arguments
are evaluated only once (pass-by-value), preventing the race
conditions.
Additionally, in store_fan_div, move the calculation of the minimum
limit inside the update lock. This ensures that the read-modify-write
sequence operates on consistent data.
Adhere to the principle of minimal changes by only converting macros
that evaluate arguments multiple times and are used in lockless
contexts.
projects / thirdparty / linux.git / log
