The recent changes to get_unaligned() resulted in a new sparse warning:
net/rds/ib_cm.c:96:35: sparse: sparse: incorrect type in argument 1 (different modifiers) @@ expected void * @@ got restricted __be64 const * @@
net/rds/ib_cm.c:96:35: sparse: expected void *
net/rds/ib_cm.c:96:35: sparse: got restricted __be64 const *
The updated get_unaligned_t() uses __unqual_scalar_typeof() to get an
unqualified type. This works correctly for the compilers, but fails for
sparse when the data type is __be64 (or any other __beNN variant).
On sparse runs (C=[12]) __beNN types are annotated with
__attribute__((bitwise)).
That annotation allows sparse to detect incompatible operations on __beNN
variables, but it also prevents sparse from evaluating the _Generic() in
__unqual_scalar_typeof() and map __beNN to a unqualified scalar type, so it
ends up with the default, i.e. the original qualified type of a 'const
__beNN' pointer. That then ends up as the first pointer argument to
builtin_memcpy(), which obviously causes the above sparse warnings.
The sparse git tree supports typeof_unqual() now, which allows to use it
instead of the _Generic() based __unqual_scalar_typeof(). With that sparse
correctly evaluates the unqualified type and keeps the __beNN logic intact.
The downside is that this requires a top of tree sparse build and an old
sparse version will emit a metric ton of incomprehensible error messages
before it dies with a segfault.
Therefore implement a sanity check which validates that the checker is
available and capable of handling typeof_unqual(). Emit a warning if not so
the user can take informed action.
[ tglx: Move the evaluation of USE_TYPEOF_UNQUAL to compiler_types.h so it is
set before use and implement the sanity checker ]
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Link: https://patch.msgid.link/87ecnp2zh3.ffs@tglx
Closes: https://lore.kernel.org/oe-kbuild-all/202601150001.sKSN644a-lkp@intel.com/
For consistency with __vdso_clock_gettime64() there should also be a
64-bit variant of clock_getres(). This will allow the extension of
CONFIG_COMPAT_32BIT_TIME to the vDSO and finally the removal of 32-bit
time types from the kernel and UAPI.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Link: https://patch.msgid.link/20260114-vdso-powerpc-align-v1-1-acf09373d568@linutronix.de
Now that get/put_unaligned() use memcpy() the -Wpacked and -Wattributes
warnings don't need disabling anymore.
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20251016205126.2882625-5-irogers@google.com
To pick up the changes in:
vdso: Switch get/put_unaligned() from packed struct to memcpy
As the code is dependent on __unqual_scalar_typeof, update also the tools
version of compiler_types.h to include this.
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20251016205126.2882625-4-irogers@google.com
Type punning is necessary for get/put_unaligned() but the use of a packed
struct violates strict aliasing rules, requiring -fno-strict-aliasing to be
passed to the C compiler.
Switch to using memcpy() so that -fno-strict-aliasing isn't necessary.
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20251016205126.2882625-3-irogers@google.com
Reading the byte/char output_len with get_unaligned_le32() can trigger
compiler warnings due to the size read. Avoid these warnings by using
type punning. This avoids issues when switching get_unaligned_t() to
__builtin_memcpy().
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20251016205126.2882625-2-irogers@google.com
The cache parameter of getcpu() is useless nowadays for various reasons.
* It is never passed by userspace for either the vDSO or syscalls.
* It is never used by the kernel.
* It could not be made to work on the current vDSO architecture.
* The structure definition is not part of the UAPI headers.
* vdso_getcpu() is superseded by restartable sequences in any case.
Remove the struct and its header.
As a side-effect this gets rid of an unwanted inclusion of the linux/
header namespace from vDSO code.
[ tglx: Adapt to s390 upstream changes */
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Heiko Carstens <hca@linux.ibm.com> # s390
Link: https://patch.msgid.link/20251230-getcpu_cache-v3-1-fb9c5f880ebe@linutronix.de
For consistency with __vdso_clock_gettime64() there should also be a
64-bit variant of clock_getres(). This will allow the extension of
CONFIG_COMPAT_32BIT_TIME to the vDSO and finally the removal of 32-bit
time types from the kernel and UAPI.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20251223-vdso-compat-time32-v1-9-97ea7a06a543@linutronix.de
For consistency with __vdso_clock_gettime64() there should also be a
64-bit variant of clock_getres(). This will allow the extension of
CONFIG_COMPAT_32BIT_TIME to the vDSO and finally the removal of 32-bit
time types from the kernel and UAPI.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://patch.msgid.link/20251223-vdso-compat-time32-v1-8-97ea7a06a543@linutronix.de
For consistency with __vdso_clock_gettime64() there should also be a
64-bit variant of clock_getres(). This will allow the extension of
CONFIG_COMPAT_32BIT_TIME to the vDSO and finally the removal of 32-bit
time types from the kernel and UAPI.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20251223-vdso-compat-time32-v1-7-97ea7a06a543@linutronix.de
The vDSO code hides symbols which are non-functional.
__vdso_clock_getres() was not added to this list when it got introduced.
Fixes: 052e76a31b ("ARM: 8931/1: Add clock_getres entry point")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20251223-vdso-compat-time32-v1-6-97ea7a06a543@linutronix.de
For consistency with __vdso_clock_gettime64() there should also be a
64-bit variant of clock_getres(). This will allow the extension of
CONFIG_COMPAT_32BIT_TIME to the vDSO and finally the removal of 32-bit
time types from the kernel and UAPI.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20251223-vdso-compat-time32-v1-5-97ea7a06a543@linutronix.de
SYS_clock_getres might have been redirected by libc to some other system
call than the actual clock_getres. For testing it is required to use
exactly this system call.
Use the system call number exported by the UAPI headers which is always
correct.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20251223-vdso-compat-time32-v1-3-97ea7a06a543@linutronix.de
For consistency with __vdso_clock_gettime64() there should also be a
64-bit variant of clock_getres(). This will allow the extension of
CONFIG_COMPAT_32BIT_TIME to the vDSO and finally the removal of 32-bit
time types from the kernel and UAPI. The generic vDSO library already
provides nearly all necessary building blocks for architectures to
provide this function. Only a prototype is missing.
Add the prototype to the generic header so architectures can start
providing this function.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20251223-vdso-compat-time32-v1-1-97ea7a06a543@linutronix.de
- A couple more fixes for the lib/crypto KUnit tests
- Fix missing MMU protection for the AES S-box
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Merge tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library fixes from Eric Biggers:
- A couple more fixes for the lib/crypto KUnit tests
- Fix missing MMU protection for the AES S-box
* tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
lib/crypto: aes: Fix missing MMU protection for AES S-box
MAINTAINERS: add test vector generation scripts to "CRYPTO LIBRARY"
lib/crypto: tests: Fix syntax error for old python versions
lib/crypto: tests: polyval_kunit: Increase iterations for preparekey in IRQs
Here are some small char/misc driver fixes for some reported issues.
Included in here is:
- much reported rust_binder fix
- counter driver fixes
- new device ids for the mei driver
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char/misc driver fixes for some reported issues.
Included in here is:
- much reported rust_binder fix
- counter driver fixes
- new device ids for the mei driver
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
rust_binder: remove spin_lock() in rust_shrink_free_page()
mei: me: add nova lake point S DID
counter: 104-quad-8: Fix incorrect return value in IRQ handler
counter: interrupt-cnt: Drop IRQF_NO_THREAD flag
of SEV noinstr methods, to further robustify the code.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2026-01-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
"Disable GCOV instrumentation in the SEV noinstr.c collection of SEV
noinstr methods, to further robustify the code"
* tag 'x86-urgent-2026-01-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sev: Disable GCOV on noinstr object
- Fix an endianness bug in the gic-v5 irqchip driver
- Revert a broken commit from the riscv-imsic irqchip driver
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'irq-urgent-2026-01-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc irqchip fixes from Ingo Molnar:
- Fix an endianness bug in the gic-v5 irqchip driver
- Revert a broken commit from the riscv-imsic irqchip driver
* tag 'irq-urgent-2026-01-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "irqchip/riscv-imsic: Embed the vector array in lpriv"
irqchip/gic-v5: Fix gicv5_its_map_event() ITTE read endianness
In a vain attempt to consolidate the email zoo switch everything to the
kernel.org account.
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix CONFIG_RELOCATABLE=y boots by building Image files from vmlinux,
rather than vmlinux.unstripped, now that the .modinfo section is
included in vmlinux.unstripped.
- Prevent branch predictor poisoning microarchitectural attacks that
use the syscall index as a vector by using array_index_nospec() to
clamp the index after the bounds check (as x86 and ARM64 already
do).
- Fix a crash in test_kprobes when building with Clang.
- Fix a deadlock possible when tracing is enabled for SBI ecalls.
- Fix the definition of the Zk standard RISC-V ISA extension bundle,
which was missing the Zknh extension.
- A few other miscellaneous non-functional cleanups, removing unused
macros, fixing an out-of-date path in code comments, resolving a
compile-time warning for a type mismatch in a pr_crit(), and removing
an unnecessary header file inclusion.
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Merge tag 'riscv-for-linus-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
"Notable changes include a fix to close one common microarchitectural
attack vector for out-of-order cores. Another patch exposed an
omission in my boot test coverage, which is currently missing
relocatable kernels. Otherwise, the fixes seem to be settling down for
us.
- Fix CONFIG_RELOCATABLE=y boots by building Image files from
vmlinux, rather than vmlinux.unstripped, now that the .modinfo
section is included in vmlinux.unstripped
- Prevent branch predictor poisoning microarchitectural attacks that
use the syscall index as a vector by using array_index_nospec() to
clamp the index after the bounds check (as x86 and ARM64 already
do)
- Fix a crash in test_kprobes when building with Clang
- Fix a deadlock possible when tracing is enabled for SBI ecalls
- Fix the definition of the Zk standard RISC-V ISA extension bundle,
which was missing the Zknh extension
- A few other miscellaneous non-functional cleanups, removing unused
macros, fixing an out-of-date path in code comments, resolving a
compile-time warning for a type mismatch in a pr_crit(), and
removing an unnecessary header file inclusion"
* tag 'riscv-for-linus-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: trace: fix snapshot deadlock with sbi ecall
riscv: remove irqflags.h inclusion in asm/bitops.h
riscv: cpu_ops_sbi: smp_processor_id() returns int, not unsigned int
riscv: configs: Clean up references to non-existing configs
riscv: kexec_image: Fix dead link to boot-image-header.rst
riscv: pgtable: Cleanup useless VA_USER_XXX definitions
riscv: cpufeature: Fix Zk bundled extension missing Zknh
riscv: fix KUnit test_kprobes crash when building with Clang
riscv: Sanitize syscall table indexing under speculation
riscv: boot: Always make Image from vmlinux, not vmlinux.unstripped
- Fix swapped example values for the `family` and `machine` attributes
in the sysfs SoC bus ABI documentation.
- Fix Rust build and intra-doc issues when optional subsystems
(CONFIG_PCI, CONFIG_AUXILIARY_BUS, CONFIG_PRINTK) are disabled.
- Fix typos and incorrect safety comments in Rust PCI, DMA, and device
ID documentation.
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Merge tag 'driver-core-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core fixes from Danilo Krummrich:
- Fix swapped example values for the `family` and `machine` attributes
in the sysfs SoC bus ABI documentation
- Fix Rust build and intra-doc issues when optional subsystems
(CONFIG_PCI, CONFIG_AUXILIARY_BUS, CONFIG_PRINTK) are disabled
- Fix typos and incorrect safety comments in Rust PCI, DMA, and
device ID documentation
* tag 'driver-core-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
rust: device: Remove explicit import of CStrExt
rust: pci: fix typos in Bar struct's comments
rust: device: fix broken intra-doc links
rust: dma: fix broken intra-doc links
rust: driver: fix broken intra-doc links to example driver types
rust: device_id: replace incorrect word in safety documentation
rust: dma: remove incorrect safety documentation
docs: ABI: sysfs-devices-soc: Fix swapped sample values
Fixes tracing test_multiple_writes stalls when buffer_size_kb is less
than 12KB.
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Merge tag 'linux_kselftest-fixes-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fix from Shuah Khan:
"Fix tracing test_multiple_writes stalls when buffer_size_kb is less
than 12KB"
* tag 'linux_kselftest-fixes-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/tracing: Fix test_multiple_writes stall
Including:
- Generic IO-Page-Table code:
- Several Kconfig-related build fixes
- Fix for when gcc 8.5 on PPC refuses to inline a function from a
header file.
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Merge tag 'iommu-fixes-v6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iomu fixes from Joerg Roedel:
- several Kconfig-related build fixes
- fix for when gcc 8.5 on PPC refuses to inline a function from a
header file
* tag 'iommu-fixes-v6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
iommupt: Make pt_feature() always_inline
iommufd/selftest: Prevent module/builtin conflicts in kconfig
iommufd/selftest: Add missing kconfig for DMA_SHARED_BUFFER
iommupt: Fix the kunit building
Sheng Yong reported [1] that Android APEX images didn't work with commit
072a7c7cdb ("erofs: don't bother with s_stack_depth increasing for
now") because "EROFS-formatted APEX file images can be stored within an
EROFS-formatted Android system partition."
In response, I sent a quick fat-fingered [PATCH v3] to address the
report. Unfortunately, the updated condition was incorrect:
if (erofs_is_fileio_mode(sbi)) {
- sb->s_stack_depth =
- file_inode(sbi->dif0.file)->i_sb->s_stack_depth + 1;
- if (sb->s_stack_depth > FILESYSTEM_MAX_STACK_DEPTH) {
- erofs_err(sb, "maximum fs stacking depth exceeded");
+ inode = file_inode(sbi->dif0.file);
+ if ((inode->i_sb->s_op == &erofs_sops && !sb->s_bdev) ||
+ inode->i_sb->s_stack_depth) {
The condition `!sb->s_bdev` is always true for all file-backed EROFS
mounts, making the check effectively a no-op.
The real fix tested and confirmed by Sheng Yong [2] at that time was
[PATCH v3 RESEND], which correctly ensures the following EROFS^2 setup
works:
EROFS (on a block device) + EROFS (file-backed mount)
But sadly I screwed it up again by upstreaming the outdated [PATCH v3].
This patch applies the same logic as the delta between the upstream
[PATCH v3] and the real fix [PATCH v3 RESEND].
Reported-by: Sheng Yong <shengyong1@xiaomi.com>
Closes: https://lore.kernel.org/r/3acec686-4020-4609-aee4-5dae7b9b0093@gmail.com [1]
Fixes: 072a7c7cdb ("erofs: don't bother with s_stack_depth increasing for now")
Link: https://lore.kernel.org/r/243f57b8-246f-47e7-9fb1-27a771e8e9e8@gmail.com [2]
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
gcc 8.5 on powerpc does not automatically inline these functions even
though they evaluate to constants in key cases. Since the constant
propagation is essential for some code elimination and built-time checks
this causes a build failure:
ERROR: modpost: "__pt_no_sw_bit" [drivers/iommu/generic_pt/fmt/iommu_amdv1.ko] undefined!
Caused by this:
if (pts_feature(&pts, PT_FEAT_DMA_INCOHERENT) &&
!pt_test_sw_bit_acquire(&pts,
SW_BIT_CACHE_FLUSH_DONE))
flush_writes_item(&pts);
Where pts_feature() evaluates to a constant false. Mark them as
__always_inline to force it to evaluate to a constant and trigger the code
elimination.
Fixes: 7c5b184db7 ("genpt: Generic Page Table base API")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202512230720.9y9DtWIo-lkp@intel.com/
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The selftest now depends on the AMDv1 page table, however the selftest
kconfig itself is just an sub-option of the main IOMMUFD module kconfig.
This means it cannot be modular and so kconfig allowed a modular
IOMMU_PT_AMDV1 with a built in IOMMUFD. This causes link failures:
ld: vmlinux.o: in function `mock_domain_alloc_pgtable.isra.0':
selftest.c:(.text+0x12e8ad3): undefined reference to `pt_iommu_amdv1_init'
ld: vmlinux.o: in function `BSWAP_SHUFB_CTL':
sha1-avx2-asm.o:(.rodata+0xaa36a8): undefined reference to `pt_iommu_amdv1_read_and_clear_dirty'
ld: sha1-avx2-asm.o:(.rodata+0xaa36f0): undefined reference to `pt_iommu_amdv1_map_pages'
ld: sha1-avx2-asm.o:(.rodata+0xaa36f8): undefined reference to `pt_iommu_amdv1_unmap_pages'
ld: sha1-avx2-asm.o:(.rodata+0xaa3720): undefined reference to `pt_iommu_amdv1_iova_to_phys'
Adjust the kconfig to disable IOMMUFD_TEST if IOMMU_PT_AMDV1 is incompatible.
Fixes: e93d5945ed ("iommufd: Change the selftest to use iommupt instead of xarray")
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202512210135.freQWpxa-lkp@intel.com/
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
The test doesn't build without it, dma-buf.h does not provide stub
functions if it is not enabled. Compilation can fail with:
ERROR:root:ld: vmlinux.o: in function `iommufd_test':
(.text+0x3b1cdd): undefined reference to `dma_buf_get'
ld: (.text+0x3b1d08): undefined reference to `dma_buf_put'
ld: (.text+0x3b2105): undefined reference to `dma_buf_export'
ld: (.text+0x3b211f): undefined reference to `dma_buf_fd'
ld: (.text+0x3b2e47): undefined reference to `dma_buf_move_notify'
Add the missing select.
Fixes: d2041f1f11 ("iommufd/selftest: Add some tests for the dmabuf flow")
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
The kunit doesn't work since the below commit made GENERIC_PT
unselectable:
$ make ARCH=x86_64 O=build_kunit_x86_64 olddefconfig
ERROR:root:Not all Kconfig options selected in kunitconfig were in the generated .config.
This is probably due to unsatisfied dependencies.
Missing: CONFIG_DEBUG_GENERIC_PT=y, CONFIG_IOMMUFD_TEST=y,
CONFIG_IOMMU_PT_X86_64=y, CONFIG_GENERIC_PT=y, CONFIG_IOMMU_PT_AMDV1=y,
CONFIG_IOMMU_PT_VTDSS=y, CONFIG_IOMMU_PT=y, CONFIG_IOMMU_PT_KUNIT_TEST=y
Also remove the unneeded CONFIG_IOMMUFD_TEST reference as the iommupt kunit
doesn't interact with iommufd, and it doesn't currently build for the
kunit due problems with DMA_SHARED buffer either.
Fixes: 01569c216d ("genpt: Make GENERIC_PT invisible")
Fixes: 1dd4187f53 ("iommupt: Add a kunit test for Generic Page Table")
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
- Don't bother with s_stack_depth increasing to band-aid
regressions in some composefs mount setups (EROFS + ovl^2)
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Merge tag 'erofs-for-6.19-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs fix from Gao Xiang:
- Don't increase s_stack_depth which caused regressions in some
composefs mount setups (EROFS + ovl^2)
Instead just allow one extra unaccounted fs stacking level for
straightforward cases.
* tag 'erofs-for-6.19-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: don't bother with s_stack_depth increasing for now
Previously, commit d53cd891f0 ("erofs: limit the level of fs stacking
for file-backed mounts") bumped `s_stack_depth` by one to avoid kernel
stack overflow when stacking an unlimited number of EROFS on top of
each other.
This fix breaks composefs mounts, which need EROFS+ovl^2 sometimes
(and such setups are already used in production for quite a long time).
One way to fix this regression is to bump FILESYSTEM_MAX_STACK_DEPTH
from 2 to 3, but proving that this is safe in general is a high bar.
After a long discussion on GitHub issues [1] about possible solutions,
one conclusion is that there is no need to support nesting file-backed
EROFS mounts on stacked filesystems, because there is always the option
to use loopback devices as a fallback.
As a quick fix for the composefs regression for this cycle, instead of
bumping `s_stack_depth` for file backed EROFS mounts, we disallow
nesting file-backed EROFS over EROFS and over filesystems with
`s_stack_depth` > 0.
This works for all known file-backed mount use cases (composefs,
containerd, and Android APEX for some Android vendors), and the fix is
self-contained.
Essentially, we are allowing one extra unaccounted fs stacking level of
EROFS below stacking filesystems, but EROFS can only be used in the read
path (i.e. overlayfs lower layers), which typically has much lower stack
usage than the write path.
We can consider increasing FILESYSTEM_MAX_STACK_DEPTH later, after more
stack usage analysis or using alternative approaches, such as splitting
the `s_stack_depth` limitation according to different combinations of
stacking.
Fixes: d53cd891f0 ("erofs: limit the level of fs stacking for file-backed mounts")
Reported-and-tested-by: Dusty Mabe <dusty@dustymabe.com>
Reported-by: Timothée Ravier <tim@siosm.fr>
Closes: https://github.com/coreos/fedora-coreos-tracker/issues/2087 [1]
Reported-by: "Alekséi Naidénov" <an@digitaltide.io>
Closes: https://lore.kernel.org/r/CAFHtUiYv4+=+JP_-JjARWjo6OwcvBj1wtYN=z0QXwCpec9sXtg@mail.gmail.com
Acked-by: Amir Goldstein <amir73il@gmail.com>
Acked-by: Alexander Larsson <alexl@redhat.com>
Reviewed-and-tested-by: Sheng Yong <shengyong1@xiaomi.com>
Reviewed-by: Zhiguo Niu <zhiguo.niu@unisoc.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
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Merge tag 'block-6.19-20260109' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- Kill unlikely checks for blk-rq-qos. These checks are really
all-or-nothing, either the branch is taken all the time, or it's not.
Depending on the configuration, either one of those cases may be
true. Just remove the annotation
- Fix for merging bios with different app tags set
- Fix for a recently introduced slowdown due to RCU synchronization
- Fix for a status change on loop while it's in use, and then a later
fix for that fix
- Fix for the async partition scanning in ublk
* tag 'block-6.19-20260109' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
ublk: fix use-after-free in ublk_partition_scan_work
blk-mq: avoid stall during boot due to synchronize_rcu_expedited
loop: add missing bd_abort_claiming in loop_set_status
block: don't merge bios with different app_tags
blk-rq-qos: Remove unlikely() hints from QoS checks
loop: don't change loop device under exclusive opener in loop_set_status
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Merge tag 'io_uring-6.19-20260109' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
"A single fix for a regression introduced in 6.15, where a failure to
wake up idle io-wq workers at ring exit will wait for the timeout to
expire.
This isn't normally noticeable, as the exit is async.
But if a parent task created a thread that sets up a ring and uses
requests that cause io-wq threads to be created, and the parent task
then waits for the thread to exit, then it can take 5 seconds for that
pthread_join() to succeed as the child thread is waiting for its
children to exit.
On top of that, just a basic cleanup as well"
* tag 'io_uring-6.19-20260109' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring/io-wq: remove io_wq_for_each_worker() return value
io_uring/io-wq: fix incorrect io_wq_for_each_worker() termination logic
- Do not return false if !preemptible() in current_in_efi(). EFI
runtime services can now run with preemption enabled
- Fix uninitialised variable in the arm MPAM driver, reported by sparse
- Fix partial kasan_reset_tag() use in change_memory_common() when
calculating page indices or comparing ranges
- Save/restore TCR2_EL1 during suspend/resume, otherwise the E0POE bit
is lost
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Do not return false if !preemptible() in current_in_efi(). EFI
runtime services can now run with preemption enabled
- Fix uninitialised variable in the arm MPAM driver, reported by sparse
- Fix partial kasan_reset_tag() use in change_memory_common() when
calculating page indices or comparing ranges
- Save/restore TCR2_EL1 during suspend/resume, otherwise the E0POE bit
is lost
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Fix cleared E0POE bit after cpu_suspend()/resume()
arm64: mm: Fix incomplete tag reset in change_memory_common()
arm_mpam: Stop using uninitialized variables in __ris_msmon_read()
arm64/efi: Don't fail check current_in_efi() if preemptible
The main code change is a revert of the Raspberry Pi RP1 overlay
support that was decided to not be ready.
The other fixes are all for devicetree sources:
- ethernet configuration on ixp42x-actiontec-mi424wr is
board revision specific
- validation warning fixes for imx27/imx51/imx6, hikey960 and k3
- Minor corrections across imx8 boards, addressing all types of
issues with interrups, dma, ethernet and clock settings, all
simple one-line changes.
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Merge tag 'soc-fixes-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC fixes from Arnd Bergmann:
"The main code change is a revert of the Raspberry Pi RP1 overlay
support that was decided to not be ready.
The other fixes are all for devicetree sources:
- ethernet configuration on ixp42x-actiontec-mi424wr is board
revision specific
- validation warning fixes for imx27/imx51/imx6, hikey960 and k3
- Minor corrections across imx8 boards, addressing all types of
issues with interrups, dma, ethernet and clock settings, all simple
one-line changes"
* tag 'soc-fixes-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (25 commits)
arm64: dts: hisilicon: hikey960: Drop "snps,gctl-reset-quirk" and "snps,tx_de_emphasis*" properties
Documentation/process: maintainer-soc: Mark 'make' as commands
Documentation/process: maintainer-soc: Be more explicit about defconfig
arm64: dts: mba8mx: Fix Ethernet PHY IRQ support
arm64: dts: imx8qm-ss-dma: correct the dma channels of lpuart
arm64: dts: imx8mp: Fix LAN8740Ai PHY reference clock on DH electronics i.MX8M Plus DHCOM
arm64: dts: freescale: tx8p-ml81: fix eqos nvmem-cells
arm64: dts: freescale: moduline-display: fix compatible
dt-bindings: arm: fsl: moduline-display: fix compatible
ARM: dts: imx6q-ba16: fix RTC interrupt level
arm64: dts: freescale: imx95-toradex-smarc: fix SMARC_SDIO_WP label position
arm64: dts: freescale: imx95-toradex-smarc: use edge trigger for ethphy1 interrupt
arm64: dts: add off-on-delay-us for usdhc2 regulator
arm64: dts: imx8qm-mek: correct the light sensor interrupt type to low level
ARM: dts: nxp: imx: Fix mc13xxx LED node names
arm64: dts: imx95: correct I3C2 pclk to IMX95_CLK_BUSWAKEUP
MAINTAINERS: Fix a linusw mail address
arm64: dts: broadcom: rp1: drop RP1 overlay
arm64: dts: broadcom: bcm2712: fix RP1 endpoint PCI topology
misc: rp1: drop overlay support
...
implementation correctness issues (all marked for stable) and a change
in maintainers for CephFS: Slava and Alex have formally taken over
Xiubo's role.
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Merge tag 'ceph-for-6.19-rc5' of https://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"A bunch of libceph fixes split evenly between memory safety and
implementation correctness issues (all marked for stable) and a change
in maintainers for CephFS: Slava and Alex have formally taken over
Xiubo's role"
* tag 'ceph-for-6.19-rc5' of https://github.com/ceph/ceph-client:
libceph: make calc_target() set t->paused, not just clear it
libceph: reset sparse-read state in osd_fault()
libceph: return the handler error from mon_handle_auth_done()
libceph: make free_choose_arg_map() resilient to partial allocation
ceph: update co-maintainers list in MAINTAINERS
libceph: replace overzealous BUG_ON in osdmap_apply_incremental()
libceph: prevent potential out-of-bounds reads in handle_auth_done()
When /sys/kernel/tracing/buffer_size_kb is less than 12KB,
the test_multiple_writes test will stall and wait for more
input due to insufficient buffer space.
Check current buffer_size_kb value before the test. If it is
less than 12KB, it temporarily increase the buffer to 12KB,
and restore the original value after the tests are completed.
Link: https://lore.kernel.org/r/20260109033620.25727-1-fushuai.wang@linux.dev
Fixes: 37f4660138 ("selftests/tracing: Add basic test for trace_marker_raw file")
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Fushuai Wang <wangfushuai@baidu.com>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Merge tag 'for-6.19-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- fix potential NULL pointer dereference when replaying tree log after
an error
- release path before initializing extent tree to avoid potential
deadlock when allocating new inode
- on filesystems with block size > page size
- fix potential read out of bounds during encoded read of an inline
extent
- only enforce free space tree if v1 cache is required
- print correct tree id in error message
* tag 'for-6.19-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: show correct warning if can't read data reloc tree
btrfs: fix NULL pointer dereference in do_abort_log_replay()
btrfs: force free space tree for bs > ps cases
btrfs: only enforce free space tree if v1 cache is required for bs < ps cases
btrfs: release path before initializing extent tree in btrfs_read_locked_inode()
btrfs: avoid access-beyond-folio for bs > ps encoded writes
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Merge tag 'pci-v6.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI fixes from Bjorn Helgaas:
- Remove ASPM L0s support for MSM8996 SoC since we now enable L0s when
advertised, and it caused random hangs on this device (Manivannan
Sadhasivam)
- Fix meson-pcie to report that the link is up while in ASPM L0s or L1,
since those are active states from the software point of view, and
treating the link as down caused config access failures (Bjorn
Helgaas)
- Fix up sparc DTS BAR descriptions that are above 4GB but not marked
as prefetchable, which caused resource assignment and driver probe
failures after we converted from the SPARC pcibios_enable_device() to
the generic version (Ilpo Järvinen)
* tag 'pci-v6.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
sparc/PCI: Correct 64-bit non-pref -> pref BAR resources
PCI: meson: Report that link is up while in ASPM L0s and L1 states
PCI: qcom: Remove ASPM L0s support for MSM8996 SoC
Fix the ACPI/PCI legacy interrupts (INTx) parsing in the cases when
the ACPI Global System Interrupt (GSI) value is a 32-bit one with
the MSB set that is interpreted as a negative integer and causes
acpi_pci_link_allocate_irq() to fail and acpi_irq_get_penalty() to
trigger an out-of-bounds array dereference (Lorenzo Pieralisi)
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Merge tag 'acpi-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI support fix from Rafael Wysocki:
"This fixes the ACPI/PCI legacy interrupts (INTx) parsing in the case
when the ACPI Global System Interrupt (GSI) value is a 32-bit one with
the MSB set.
That was interpreted as a negative integer and caused
acpi_pci_link_allocate_irq() to fail and acpi_irq_get_penalty() to
trigger an out-of-bounds array dereference (Lorenzo Pieralisi)"
* tag 'acpi-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PCI: IRQ: Fix INTx GSIs signedness
Fix a crash in the hibernation image saving code that can be triggered
when the given compression algorithm is unavailable (Malaya Kumar Rout)
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Merge tag 'pm-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"This fixes a crash in the hibernation image saving code that can be
triggered when the given compression algorithm is unavailable (Malaya
Kumar Rout)"
* tag 'pm-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: hibernate: Fix crash when freeing invalid crypto compressor
- balance superio enter/exit calls in error path in gpio-it87
- fix a race where we try to take the SRCU read lock of the GPIO device
before it's been initialized causing a NULL-pointer dereference
- fix handling of short-pulse interrupts in gpio-pca053x
- fix a reference leak in error path in gpio-mpsse
- mark the GPIO controller as sleeping (it calls sleeping functions) in
gpio-rockchip
- fix several issues in management of shared GPIOs
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Merge tag 'gpio-fixes-for-v6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
"There are several ordinary driver fixes and a fix to a race between
the registration of two chips that causes a crash in GPIO core.
The bulk of the changed lines however, concerns the management of
shared GPIOs that landed in v6.19-rc1. Enabling it for ARCH_QCOM
enabled it in defconfig which effectively enabled it for all arm64
platforms and exposed the code to quite a lot of testing (which is
good, right? :)).
As a resukt, I received a number of bug reports, which I progressively
fixed over the course of last weeks. This explains the number of lines
higher than what I normally aim for at this stage.
- balance superio enter/exit calls in error path in gpio-it87
- fix a race where we try to take the SRCU read lock of the GPIO
device before it's been initialized causing a NULL-pointer
dereference
- fix handling of short-pulse interrupts in gpio-pca053x
- fix a reference leak in error path in gpio-mpsse
- mark the GPIO controller as sleeping (it calls sleeping functions)
in gpio-rockchip
- fix several issues in management of shared GPIOs"
* tag 'gpio-fixes-for-v6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: shared: fix a false-positive sharing detection with reset-gpios
gpiolib: fix lookup table matching
gpio: shared: don't allocate the lookup table until we really need it
gpio: shared: fix a race condition
gpio: shared: assign the correct firmware node for reset-gpio use-case
gpio: rockchip: mark the GPIO controller as sleeping
gpio: mpsse: fix reference leak in gpio_mpsse_probe() error paths
gpio: pca953x: handle short interrupt pulses on PCAL devices
gpiolib: fix race condition for gdev->srcu
gpio: shared: allow sharing a reset-gpios pin between reset-gpio and gpiolib
gpio: shared: verify con_id when adding proxy lookup
gpiolib: allow multiple lookup tables per consumer
gpio: it87: balance superio enter/exit calls in error path
MAINTAINERS:
- Fix Nova GPU driver git links.
- Fix typo in TYR driver entry preventing correct behavior of
scripts/get_maintainer.pl.
- Exclude TYR driver from DRM MISC.
nova-core:
- Correctly select RUST_FW_LOADER_ABSTRACTIONS to prevent build
errors.
- Regenerate nova-core bindgen bindings with '--explicit-padding' to
avoid uninitialized bytes.
- Fix length of received GSP messages, due to miscalculated message
payload size.
- Regenerate bindings to derive MaybeZeroable.
- Use a bindings alias to derive the firmware version.
exynos:
- hdmi: replace system_wq with system_percpu_wq
pl111:
- Fix error handling in probe
mediatek/atomic/tidss:
- Fix tidss in another way and revert reordering of pre-enable and post-disable operations,
as it breaks other bridge drivers.
nouveau:
- Fix regression from fwsec s/r fix.
pci/vga:
- Fix multiple gpu's being reported a 'boot_display'
fb-helper:
- Fix vblank timeout during suspend/reset
amdgpu:
- Clang fixes
- Navi1x PCIe DPM fixes
- Ring reset fixes
- ISP suspend fix
- Analog DC fixes
- VPE fixes
- Mode1 reset fix
radeon:
- Variable sized array fix
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Merge tag 'drm-fixes-2026-01-09' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"I missed the drm-rust fixes tree for last week, so this catches up on
that, along with amdgpu, and then some misc fixes across a few
drivers. I hadn't got an xe pull by the time I sent this, I suspect
one will arrive 10 mins after, but I don't think there is anything
that can't wait for next week.
Things seem to have picked up a little with people coming back from
holidays,
MAINTAINERS:
- Fix Nova GPU driver git links
- Fix typo in TYR driver entry preventing correct behavior of
scripts/get_maintainer.pl
- Exclude TYR driver from DRM MISC
nova-core:
- Correctly select RUST_FW_LOADER_ABSTRACTIONS to prevent build
errors
- Regenerate nova-core bindgen bindings with '--explicit-padding' to
avoid uninitialized bytes
- Fix length of received GSP messages, due to miscalculated message
payload size
- Regenerate bindings to derive MaybeZeroable
- Use a bindings alias to derive the firmware version
exynos:
- hdmi: replace system_wq with system_percpu_wq
pl111:
- Fix error handling in probe
mediatek/atomic/tidss:
- Fix tidss in another way and revert reordering of pre-enable and
post-disable operations, as it breaks other bridge drivers
nouveau:
- Fix regression from fwsec s/r fix
pci/vga:
- Fix multiple gpu's being reported a 'boot_display'
fb-helper:
- Fix vblank timeout during suspend/reset
amdgpu:
- Clang fixes
- Navi1x PCIe DPM fixes
- Ring reset fixes
- ISP suspend fix
- Analog DC fixes
- VPE fixes
- Mode1 reset fix
radeon:
- Variable sized array fix"
* tag 'drm-fixes-2026-01-09' of https://gitlab.freedesktop.org/drm/kernel: (32 commits)
Reapply "Revert "drm/amd: Skip power ungate during suspend for VPE""
drm/amd/display: Check NULL before calling dac_load_detection
drm/amd/pm: Disable MMIO access during SMU Mode 1 reset
drm/exynos: hdmi: replace use of system_wq with system_percpu_wq
drm/fb-helper: Fix vblank timeout during suspend/reset
PCI/VGA: Don't assume the only VGA device on a system is `boot_vga`
drm/amdgpu: Fix query for VPE block_type and ip_count
drm/amd/display: Add missing encoder setup to DACnEncoderControl
drm/amd/display: Correct color depth for SelectCRTC_Source
drm/amd/amdgpu: Fix SMU warning during isp suspend-resume
drm/amdgpu: always backup and reemit fences
drm/amdgpu: don't reemit ring contents more than once
drm/amd/pm: force send pcie parmater on navi1x
drm/amd/pm: fix wrong pcie parameter on navi1x
drm/radeon: Remove __counted_by from ClockInfoArray.clockInfo[]
drm/amd/display: Reduce number of arguments of dcn30's CalculateWatermarksAndDRAMSpeedChangeSupport()
drm/amd/display: Reduce number of arguments of dcn30's CalculatePrefetchSchedule()
drm/amd/display: Apply e4479aecf6 to dml
nouveau: don't attempt fwsec on sb on newer platforms
drm/tidss: Fix enable/disable order
...
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Merge tag 'vfs-6.19-rc5.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Remove incorrect __user annotation from struct xattr_args::value
- Documentation fix: Add missing kernel-doc description for the @isnew
parameter in ilookup5_nowait() to silence Sphinx warnings
- Documentation fix: Fix kernel-doc comment for __start_dirop() - the
function name in the comment was wrong and the @state parameter was
undocumented
- Replace dynamic folio_batch allocation with stack allocation in
iomap_zero_range(). The dynamic allocation was problematic for
ext4-on-iomap work (didn't handle allocation failure properly) and
triggered lockdep complaints. Uses a flag instead to control batch
usage
- Re-add #ifdef guards around PIDFD_GET_<ns-type>_NAMESPACE ioctls.
When a namespace type is disabled, ns->ops is NULL, causes crashes
during inode eviction when closing the fd. The ifdefs were removed in
a recent simplification but are still needed
- Fixe a race where a folio could be unlocked before the trailing zeros
(for EOF within the page) were written
- Split out a dedicated lease_dispose_list() helper since lease code
paths always know they're disposing of leases. Removes unnecessary
runtime flag checks and prepares for upcoming lease_manager
enhancements
- Fix userland delegation requests succeeding despite conflicting
opens. Previously, FL_LAYOUT and FL_DELEG leases bypassed conflict
checks (a hack for nfsd). Adds new ->lm_open_conflict() lease_manager
operation so userland delegations get proper conflict checking while
nfsd can continue its own conflict handling
- Fix LOOKUP_CACHED path lookups incorrectly falling through to the
slow path. After legitimize_links() calls were conditionally elided,
the routine would always fail with LOOKUP_CACHED regardless of
whether there were any links. Now the flag is checked at the two
callsites before calling legitimize_links()
- Fix bug in media fd allocation in media_request_alloc()
- Fix mismatched API calls in ecryptfs_mknod(): was calling
end_removing() instead of end_creating() after
ecryptfs_start_creating_dentry()
- Fix dentry reference count leak in ecryptfs_mkdir(): a dget() of the
lower parent dir was added but never dput()'d, causing BUG during
lower filesystem unmount due to the still-in-use dentry
* tag 'vfs-6.19-rc5.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs:
pidfs: protect PIDFD_GET_* ioctls() via ifdef
ecryptfs: Release lower parent dentry after creating dir
ecryptfs: Fix improper mknod pairing of start_creating()/end_removing()
get rid of bogus __user in struct xattr_args::value
VFS: fix __start_dirop() kernel-doc warnings
fs: Describe @isnew parameter in ilookup5_nowait()
fs: make sure to fail try_to_unlazy() and try_to_unlazy() for LOOKUP_CACHED
netfs: Fix early read unlock of page with EOF in middle
filelock: allow lease_managers to dictate what qualifies as a conflict
filelock: add lease_dispose_list() helper
iomap: replace folio_batch allocation with stack allocation
media: mc: fix potential use-after-free in media_request_alloc()
The __alloc_percpu() fails when the number of IDs are greater than 959
because size parameter of __alloc_percpu() must be less than 32768 (aka
PCPU_MIN_UNIT_SIZE). This failure is observed with KVMTOOL when AIA is
trap-n-emulated by in-kernel KVM because in this case KVM guest has 2047
interrupt IDs.
To address this issue, don't embed vector array in struct imsic_local_priv
until __alloc_percpu() support size parameter greater than 32768.
This reverts commit 79eaabc61d ("irqchip/riscv-imsic: Embed the vector
array in lpriv").
Signed-off-by: Anup Patel <anup.patel@oss.qualcomm.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20251223143544.1504217-1-anup.patel@oss.qualcomm.com
