This completes 3bc3c9c3ab ("bugs/core: Pass down the condition
string of WARN_ON_ONCE(cond) warnings to __WARN_FLAGS()") and makes
WARN_ON() and WARN_ON_ONCE() behaviour consistent.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20251110115757.690999560@infradead.org
Add a report_bug() variant where the bug_entry is already known. This
is useful when the exception instruction is not instantiated per-site.
But instead has a single instance. In such a case the bug_entry
address might be passed along in a known register or something.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20251110115757.575795595@infradead.org
Add BUG_FORMAT_ARGS; when an architecture is able to provide a va_list
given pt_regs, use this to print format arguments.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20251110115757.457339417@infradead.org
Three repeated CONFIG_GENERIC_BUG_RELATIVE_POINTERS #ifdefs right
after one another yields unreadable code. Add a helper.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20251110115757.341703850@infradead.org
Add BUG_FORMAT; an architecture opt-in feature that allows adding the
WARN_printf() format string to the bug_entry table.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20251110115757.223371452@infradead.org
Bring in the UDB and objtool data annotations to avoid conflicts while further extending the bug exceptions.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
This reverts commit 9c7dc1dd89.
The check-function-names.sh script now provides the function name
checking functionality for all architectures, making the objtool check
redundant.
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/c7d549d4de8bd1490d106b99630eea5efc69a4dd.1763669451.git.jpoimboe@kernel.org
Commit 9c7dc1dd89 ("objtool: Warn on functions with ambiguous
-ffunction-sections section names") only works for drivers which are
compiled on architectures supported by objtool.
Make a script to perform the same check for all architectures.
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/a6a49644a34964f7e02f3a8ce43af03e72817180.1763669451.git.jpoimboe@kernel.org
When compiled with -ffunction-sections (e.g., for LTO, livepatch, dead
code elimination, AutoFDO, or Propeller), the startup() function gets
compiled into the .text.startup section (or in some cases
.text.startup.constprop.0 or .text.startup.isra.0).
However, the .text.startup and .text.startup.* sections are also used by
the compiler for __attribute__((constructor)) code.
This naming conflict causes the vmlinux linker script to wrongly place
startup() function code in .init.text, which gets freed during boot.
Some builds have a mix of objects, both with and without
-ffunctions-sections, so it's not possible for the linker script to
disambiguate with #ifdef CONFIG_FUNCTION_SECTIONS or similar. This
means that "startup" unfortunately needs to be prohibited as a function
name.
Rename startup() to startup_hw(). For consistency, also rename its
shutdown() counterpart to shutdown_hw().
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/f0ee750f35c878172cc09916a0724b74e62eadc2.1763669451.git.jpoimboe@kernel.org
When compiled with -ffunction-sections (e.g., for LTO, livepatch, dead
code elimination, AutoFDO, or Propeller), the startup() function gets
compiled into the .text.startup section (or in some cases
.text.startup.constprop.0 or .text.startup.isra.0).
However, the .text.startup and .text.startup.* sections are also used by
the compiler for __attribute__((constructor)) code.
This naming conflict causes the vmlinux linker script to wrongly place
startup() function code in .init.text, which gets freed during boot.
Some builds have a mix of objects, both with and without
-ffunctions-sections, so it's not possible for the linker script to
disambiguate with #ifdef CONFIG_FUNCTION_SECTIONS or similar. This
means that "startup" unfortunately needs to be prohibited as a function
name.
Rename startup() to rs_startup(). For consistency, also rename its
shutdown() counterpart to rs_shutdown().
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/9e56afff5268b0b12b99a8aa9bf244d6ebdcdf47.1763669451.git.jpoimboe@kernel.org
When compiled with -ffunction-sections (e.g., for LTO, livepatch, dead
code elimination, AutoFDO, or Propeller), the startup() function gets
compiled into the .text.startup section (or in some cases
.text.startup.constprop.0 or .text.startup.isra.0).
However, the .text.startup and .text.startup.* sections are also used by
the compiler for __attribute__((constructor)) code.
This naming conflict causes the vmlinux linker script to wrongly place
startup() function code in .init.text, which gets freed during boot.
Some builds have a mix of objects, both with and without
-ffunctions-sections, so it's not possible for the linker script to
disambiguate with #ifdef CONFIG_FUNCTION_SECTIONS or similar. This
means that "startup" unfortunately needs to be prohibited as a function
name.
Rename startup() to gc2235_startup().
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/d28103a6edf7beceb5e3c6fa24e49dbad1350389.1763669451.git.jpoimboe@kernel.org
When compiled with -ffunction-sections (e.g., for LTO, livepatch, dead
code elimination, AutoFDO, or Propeller), the startup() function gets
compiled into the .text.startup section (or in some cases
.text.startup.constprop.0 or .text.startup.isra.0).
However, the .text.startup and .text.startup.* sections are also used by
the compiler for __attribute__((constructor)) code.
This naming conflict causes the vmlinux linker script to wrongly place
startup() function code in .init.text, which gets freed during boot.
Some builds have a mix of objects, both with and without
-ffunctions-sections, so it's not possible for the linker script to
disambiguate with #ifdef CONFIG_FUNCTION_SECTIONS or similar. This
means that "startup" unfortunately needs to be prohibited as a function
name.
Rename startup() to icom_startup(). For consistency, also rename its
shutdown() counterpart to icom_shutdown().
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/1aee9ef69f9d40405676712b34f0c397706e7023.1763669451.git.jpoimboe@kernel.org
The .cold function parent/child correlation logic has two passes: one in
read_symbols() and one in add_jump_destinations().
The second pass was added with commit cd77849a69 ("objtool: Fix GCC 8
cold subfunction detection for aliased functions") to ensure that if the
parent symbol had aliases then the canonical symbol was chosen as the
parent.
That solution was rather clunky, not to mention incomplete due to the
existence of alternatives and switch tables. Now that we have
sym->alias, the canonical alias fix can be done much simpler in the
first pass, making the second pass obsolete.
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/bdab245a38000a5407f663a031f39e14c67a43d4.1763671318.git.jpoimboe@kernel.org
When symbol alias ambiguity exists in the symbol finding helper
functions, return the canonical sym->alias, as that's the one which gets
used by validate_branch() and elsewhere.
This doesn't fix any known issues, just makes the symbol alias behavior
more robust.
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/450470a4897706af77453ad333e18af5ebab653c.1763671318.git.jpoimboe@kernel.org
Objtool is mistakenly aliasing all undefined symbols. That's obviously
wrong, though it has no consequence since objtool happens to only use
sym->alias for defined symbols. Fix it regardless.
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/bc401173a7717757eee672fc1ca5a20451d77b86.1763671318.git.jpoimboe@kernel.org
The objtool .cold child/parent correlation is done in two phases: first
in elf_add_symbol() and later in add_jump_destinations().
The first phase is rather crude and can pick the wrong parent if there
are duplicates with the same name.
The second phase usually fixes that, but only if the parent has a direct
jump to the child. It does *not* work if the only branch from the
parent to the child is an alternative or jump table entry.
Make the first phase more robust by looking for the parent in the same
STT_FILE as the child.
Fixes the following objtool warnings in an AutoFDO build with a large
CLANG_AUTOFDO_PROFILE profile:
vmlinux.o: warning: objtool: rdev_add_key() falls through to next function rdev_add_key.cold()
vmlinux.o: warning: objtool: rdev_set_default_key() falls through to next function rdev_set_default_key.cold()
Fixes: 13810435b9 ("objtool: Support GCC 8's cold subfunctions")
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/82c7b52e40efa75dd10e1c550cc75c1ce10ac2c9.1763671318.git.jpoimboe@kernel.org
AutoFDO enables -fsplit-machine-functions which can move the cold parts
of a function to a <func>.cold symbol in a .text.split.<func> section.
Unlike GCC, the Clang <func>.cold symbols are not marked STT_FUNC. This
confuses objtool in several ways, resulting in warnings like the
following:
vmlinux.o: warning: objtool: apply_retpolines.cold+0xfc: unsupported instruction in callable function
vmlinux.o: warning: objtool: machine_check_poll.cold+0x2e: unsupported instruction in callable function
vmlinux.o: warning: objtool: free_deferred_objects.cold+0x1f: relocation to !ENDBR: free_deferred_objects.cold+0x26
vmlinux.o: warning: objtool: rpm_idle.cold+0xe0: relocation to !ENDBR: rpm_idle.cold+0xe7
vmlinux.o: warning: objtool: tcp_rcv_state_process.cold+0x1c: relocation to !ENDBR: tcp_rcv_state_process.cold+0x23
Fix it by marking the .cold symbols as STT_FUNC.
Fixes: 2fd65f7afd ("AutoFDO: Enable machine function split optimization for AutoFDO")
Closes: https://lore.kernel.org/20251103215244.2080638-2-xur@google.com
Reported-by: Rong Xu <xur@google.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: xur@google.com
Tested-by: xur@google.com
Link: https://patch.msgid.link/20a67326f04b2a361c031b56d58e8a803b3c5893.1763671318.git.jpoimboe@kernel.org
With CONFIG_KLP_BUILD enabled, checksums are only needed during a
klp-build run. There's no need to enable them for normal kernel builds.
This also has the benefit of softening the xxhash dependency.
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mhklinux@outlook.com>
Link: https://patch.msgid.link/edbb1ca215e4926e02edb493b68b9d6d063e902f.1762990139.git.jpoimboe@kernel.org
When compiled with -ffunction-sections, a function named startup() will
be placed in .text.startup. However, .text.startup is also used by the
compiler for functions with __attribute__((constructor)).
That creates an ambiguity for the vmlinux linker script, which needs to
differentiate those two cases.
Similar naming conflicts exist for functions named exit(), split(),
unlikely(), hot() and unknown().
One potential solution would be to use '#ifdef CC_USING_FUNCTION_SECTIONS'
to create two distinct implementations of the TEXT_MAIN macro. However,
-ffunction-sections can be (and is) enabled or disabled on a per-object
basis (for example via ccflags-y or AUTOFDO_PROFILE).
So the recently unified TEXT_MAIN macro (commit 1ba9f89794
("vmlinux.lds: Unify TEXT_MAIN, DATA_MAIN, and related macros")) is
necessary. This means there's no way for the linker script to
disambiguate things.
Instead, use objtool to warn on any function names whose resulting
section names might create ambiguity when the kernel is compiled (in
whole or in part) with -ffunction-sections.
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: live-patching@vger.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://patch.msgid.link/65fedea974fe14be487c8867a0b8d0e4a294ce1e.1762991150.git.jpoimboe@kernel.org
When compiling the kernel with -ffunction-sections enabled, the split()
function gets compiled into the .text.split section. In some cases it
can even be cloned into .text.split.constprop.0 or .text.split.isra.0.
However, .text.split.* is already reserved for use by the Clang
-fsplit-machine-functions flag, which is used by AutoFDO. That may
place part of a function's code in a .text.split.<func> section.
This naming conflict causes the vmlinux linker script to wrongly place
split() with other .text.split.* code, rather than where it belongs with
regular text.
Fix it by renaming split() to split_strings().
Fixes: 6568f14cb5 ("vmlinux.lds: Exclude .text.startup and .text.exit from TEXT_MAIN")
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: live-patching@vger.kernel.org
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://patch.msgid.link/92a194234a0f757765e275b288bb1a7236c2c35c.1762991150.git.jpoimboe@kernel.org
When compiling the kernel with -ffunction-sections (e.g., for LTO,
livepatch, dead code elimination, AutoFDO, or Propeller), the startup()
function gets compiled into the .text.startup section. In some cases it
can even be cloned into .text.startup.constprop.0 or
.text.startup.isra.0.
However, the .text.startup and .text.startup.* section names are already
reserved for use by the compiler for __attribute__((constructor)) code.
This naming conflict causes the vmlinux linker script to wrongly place
startup() function code in .init.text, which gets freed during boot.
Fix that by renaming startup() to ov2722_startup().
Fixes: 6568f14cb5 ("vmlinux.lds: Exclude .text.startup and .text.exit from TEXT_MAIN")
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: live-patching@vger.kernel.org
Cc: Hans de Goede <hansg@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://patch.msgid.link/bf8cd823a3f11f64cc82167913be5013c72afa57.1762991150.git.jpoimboe@kernel.org
Since:
6568f14cb5 ("vmlinux.lds: Exclude .text.startup and .text.exit from TEXT_MAIN")
the TEXT_MAIN macro uses a series of patterns to prevent the
.text.startup[.*] and .text.exit[.*] sections from getting
linked into the vmlinux runtime .text.
That commit is a tad too aggressive: it also inadvertently filters out
valid runtime text sections like .text.start and
.text.start.constprop.0, which can be generated for a function named
start() when -ffunction-sections is enabled.
As a result, those sections become orphans when building with
CONFIG_LD_DEAD_CODE_DATA_ELIMINATION for arm:
arm-linux-gnueabi-ld: warning: orphan section `.text.start.constprop.0' from `drivers/usb/host/sl811-hcd.o' being placed in section `.text.start.constprop.0'
arm-linux-gnueabi-ld: warning: orphan section `.text.start.constprop.0' from `drivers/media/dvb-frontends/drxk_hard.o' being placed in section `.text.start.constprop.0'
arm-linux-gnueabi-ld: warning: orphan section `.text.start' from `drivers/media/dvb-frontends/stv0910.o' being placed in section `.text.start'
arm-linux-gnueabi-ld: warning: orphan section `.text.start.constprop.0' from `drivers/media/pci/ddbridge/ddbridge-sx8.o' being placed in section `.text.start.constprop.0'
Fix that by explicitly adding the partial "substring" sections (.text.s,
.text.st, .text.sta, etc) and their cloned derivatives.
While this unfortunately means that TEXT_MAIN continues to grow,
these changes are ultimately necessary for proper support of
-ffunction-sections.
Fixes: 6568f14cb5 ("vmlinux.lds: Exclude .text.startup and .text.exit from TEXT_MAIN")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: live-patching@vger.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://patch.msgid.link/cd588144e63df901a656b06b566855019c4a931d.1762991150.git.jpoimboe@kernel.org
Closes: https://lore.kernel.org/oe-kbuild-all/202511040812.DFGedJiy-lkp@intel.com/
Copy from
54da6a0924 ("locking: Introduce __cleanup() based infrastructure")
the bits which mark the variable with a cleanup attribute unused so that my
clang 15 can dispose of it properly instead of warning that it is unused which
then fails the build due to -Werror.
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20251031114919.GBaQSiPxZrziOs3RCW@fat_crate.local
Two reverts merged into one commit to handle a regression caused by a
wrong cleanup because the underlying implications were unclear.
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Merge tag 'i2c-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fix from Wolfram Sang:
"Two reverts merged into one commit to handle a regression caused by a
wrong cleanup because the underlying implications were unclear"
* tag 'i2c-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: muxes: pca954x: Fix broken reset-gpio usage
- Strip trailing padding bytes from modules.builtin.modinfo to fix error
during modules_install with certain versions of kmod
- Drop unused static inline function warning in .c files with clang from
W=1 to W=2
- Ensure kernel-doc.py invocations use the PYTHON3 make variable to
ensure user's choice of Python interpreter is always respected
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
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Merge tag 'kbuild-fixes-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild fixes from Nathan Chancellor:
- Strip trailing padding bytes from modules.builtin.modinfo to fix
error during modules_install with certain versions of kmod
- Drop unused static inline function warning in .c files with clang
from W=1 to W=2
- Ensure kernel-doc.py invocations use the PYTHON3 make variable to
ensure user's choice of Python interpreter is always respected
* tag 'kbuild-fixes-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
kbuild: Let kernel-doc.py use PYTHON3 override
compiler_types: Move unused static inline functions warning to W=2
kbuild: Strip trailing padding bytes from modules.builtin.modinfo
It is possible to force a specific version of python to be used when
building the kernel by passing PYTHON3= on the make command line.
However kernel-doc.py is currently called with python3 hard-coded and
thus ignores this setting.
Use $(PYTHON3) to run $(KERNELDOC) so that the desired version of
python is used.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://patch.msgid.link/20251107192933.2bfe9e57@endymion
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
nouveau:
- revert DMA mask change
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Merge tag 'drm-fixes-2025-11-09' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fix from Dave Airlie:
"Brown paper bag, the dma mask fix which I applied and actually looked
through for bad things, actually broke newer GPUs, there might be some
latent part in the boot path that is assuming 32-bit still, but we
will figure that out elsewhere.
nouveau:
- revert DMA mask change"
* tag 'drm-fixes-2025-11-09' of https://gitlab.freedesktop.org/drm/kernel:
Revert "drm/nouveau: set DMA mask before creating the flush page"
- Fix AMD PCI root device caching regression that triggers
on certain firmware variants
- Fix the zen5_rdseed_microcode[] array to be NULL-terminated
- Add more AMD models to microcode signature checking
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- Fix AMD PCI root device caching regression that triggers
on certain firmware variants
- Fix the zen5_rdseed_microcode[] array to be NULL-terminated
- Add more AMD models to microcode signature checking
* tag 'x86-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode/AMD: Add more known models to entry sign checking
x86/CPU/AMD: Add missing terminator for zen5_rdseed_microcode
x86/amd_node: Fix AMD root device caching
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Ingo Molnar:
"Fix a group-throttling bug in the fair scheduler"
* tag 'sched-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Prevent cfs_rq from being unthrottled with zero runtime_remaining
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf event fix from Ingo Molnar:
"Fix a system hang caused by cpu-clock events deadlock"
* tag 'perf-urgent-2025-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Fix system hang caused by cpu-clock usage
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Merge tag 'io_uring-6.18-20251107' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fix from Jens Axboe:
"Single fix in there, fixing an overflow in calculating the needed
segments for converting into a bvec array"
* tag 'io_uring-6.18-20251107' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring: fix regbuf vector size truncation
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-fixes-6.18-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Carlos Maiolino:
"This contain fixes for the RT and zoned allocator, and a few fixes for
atomic writes"
* tag 'xfs-fixes-6.18-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: free xfs_busy_extents structure when no RT extents are queued
xfs: fix zone selection in xfs_select_open_zone_mru
xfs: fix a rtgroup leak when xfs_init_zone fails
xfs: fix various problems in xfs_atomic_write_cow_iomap_begin
xfs: fix delalloc write failures in software-provided atomic writes
This reverts commit ebe7556050.
Tested the latest kernel on my GB203 and this seems to break it somehow.
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: gsp: GSP-FMC boot failed (mbox: 0x0000000b)
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: gsp: init failed, -5
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: init failed with -5
Nov 09 04:16:14 bighp kernel: nouveau: drm:00000000:00000080: init failed with -5
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: drm: Device allocation failed: -5
Nov 09 04:16:14 bighp kernel: nouveau 0000:02:00.0: probe with driver nouveau failed with error -5
Not sure why, I went over the patch and thought it should have worked, but there must be some
32-bit problem maybe in the FMC boot path.
Signed-off-by: Dave Airlie <airlied@redhat.com>
There is a report of io_estimate_bvec_size() truncating the calculated
number of segments that leads to corruption issues. Check it doesn't
overflow "int"s used later. Rough but simple, can be improved on top.
Cc: stable@vger.kernel.org
Fixes: 9ef4cbbcb4 ("io_uring: add infra for importing vectored reg buffers")
Reported-by: Google Big Sleep <big-sleep-vuln-reports+bigsleep-458654612@google.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Günther Noack <gnoack@google.com>
Tested-by: Günther Noack <gnoack@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
sched:
- Fix deadlock
amdgpu:
- Reset fixes
- Misc fixes
- Panel scaling fixes
- HDMI fix
- S0ix fixes
- Hibernation fix
- Secure display fix
- Suspend fix
- MST fix
amdkfd:
- Process cleanup fix
xe:
- Fix missing synchronization on unbind
- Fix device shutdown when doing FLR
- Fix user fence signaling order
i915:
- Avoid lock inversion when pinning to GGTT on CHV/BXT+VTD
- Fix conversion between clock ticks and nanoseconds
mediatek:
- Disable AFBC support on Mediatek DRM driver
- Add pm_runtime support for GCE power control
imagination:
- kconfig: Fix dependencies
nouveau:
- Set DMA mask earlier
- Advertize correct modifiers for GB20x
pixpaper:
- kconfig: Fix dependencies
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Merge tag 'drm-fixes-2025-11-08' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Back from travel, thanks to Simona for handling things. regular fixes,
seems about the right size, but spread out a bit.
amdgpu has the usual range of fixes, xe has a few fixes, and nouveau
has a couple of fixes, one for blackwell modifiers on 8/16 bit
surfaces.
Otherwise a few small fixes for mediatek, sched, imagination and
pixpaper.
sched:
- Fix deadlock
amdgpu:
- Reset fixes
- Misc fixes
- Panel scaling fixes
- HDMI fix
- S0ix fixes
- Hibernation fix
- Secure display fix
- Suspend fix
- MST fix
amdkfd:
- Process cleanup fix
xe:
- Fix missing synchronization on unbind
- Fix device shutdown when doing FLR
- Fix user fence signaling order
i915:
- Avoid lock inversion when pinning to GGTT on CHV/BXT+VTD
- Fix conversion between clock ticks and nanoseconds
mediatek:
- Disable AFBC support on Mediatek DRM driver
- Add pm_runtime support for GCE power control
imagination:
- kconfig: Fix dependencies
nouveau:
- Set DMA mask earlier
- Advertize correct modifiers for GB20x
pixpaper:
- kconfig: Fix dependencies"
* tag 'drm-fixes-2025-11-08' of https://gitlab.freedesktop.org/drm/kernel: (26 commits)
drm/xe: Enforce correct user fence signaling order using
drm/xe: Do clean shutdown also when using flr
drm/xe: Move declarations under conditional branch
drm/xe/guc: Synchronize Dead CT worker with unbind
drm/amd/display: Enable mst when it's detected but yet to be initialized
drm/amdgpu: Fix wait after reset sequence in S3
drm/amd: Fix suspend failure with secure display TA
drm/amdgpu: fix gpu page fault after hibernation on PF passthrough
drm/tiny: pixpaper: add explicit dependency on MMU
drm/nouveau: Advertise correct modifiers on GB20x
drm: define NVIDIA DRM format modifiers for GB20x
drm/nouveau: set DMA mask before creating the flush page
drm/sched: Fix deadlock in drm_sched_entity_kill_jobs_cb
drm/amd/display: Fix NULL deref in debugfs odm_combine_segments
drm/amdkfd: Don't clear PT after process killed
drm/amdgpu/smu: Handle S0ix for vangogh
drm/amdgpu: Drop PMFW RLC notifier from amdgpu_device_suspend()
drm/amd/display: Fix black screen with HDMI outputs
drm/amd/display: Don't stretch non-native images by default in eDP
drm/amd/pm: fix missing device_attr cleanup in amdgpu_pm_sysfs_init()
...
- fix crash triggered by unaligned access in parisc unwinder
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Merge tag 'parisc-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fix from Helge Deller:
- fix crash triggered by unaligned access in parisc unwinder
* tag 'parisc-for-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Avoid crash due to unaligned access in unwinder
Three fixes:
- Syzkaller found a case where maths overflows can cause divide by 0
- Typo in a compiler bug warning fix in the selftests broke the selftests
- type1 compatability had a mismatch when unmapping an already unmaped
range, it should succeed
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Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd fixes from Jason Gunthorpe:
- Syzkaller found a case where maths overflows can cause divide by 0
- Typo in a compiler bug warning fix in the selftests broke the
selftests
- type1 compatability had a mismatch when unmapping an already unmapped
range, it should succeed
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
iommufd: Make vfio_compat's unmap succeed if the range is already empty
iommufd/selftest: Fix ioctl return value in _test_cmd_trigger_vevents()
iommufd: Don't overflow during division for dirty tracking
Per Nathan, clang catches unused "static inline" functions in C files
since commit 6863f5643d ("kbuild: allow Clang to find unused static
inline functions for W=1 build").
Linus said:
> So I entirely ignore W=1 issues, because I think so many of the extra
> warnings are bogus.
>
> But if this one in particular is causing more problems than most -
> some teams do seem to use W=1 as part of their test builds - it's fine
> to send me a patch that just moves bad warnings to W=2.
>
> And if anybody uses W=2 for their test builds, that's THEIR problem..
Here is the change to bump the warning from W=1 to W=2.
Fixes: 6863f5643d ("kbuild: allow Clang to find unused static inline functions for W=1 build")
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20251106105000.2103276-1-andriy.shevchenko@linux.intel.com
[nathan: Adjust comment as well]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
SMB2_change_notify called smb2_validate_iov() but ignored the return
code, then kmemdup()ed using server provided OutputBufferOffset/Length.
Check the return of smb2_validate_iov() and bail out on error.
Discovered with help from the ZeroPath security tooling.
Signed-off-by: Joshua Rogers <linux@joshua.hu>
Reviewed-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Cc: stable@vger.kernel.org
Fixes: e3e9463414 ("smb3: improve SMB3 change notification support")
Signed-off-by: Steve French <stfrench@microsoft.com>
- use the firmware node of the GPIO chip, not its label for software
node lookup
- fix invalid pointer access in GPIO debugfs
- drop unused functions from gpio-tb10x
- fix a regression in gpio-aggregator: restore the set_config() callback
in the driver
- correct schema $id path in ti,twl4030 DT bindings
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Merge tag 'gpio-fixes-for-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- use the firmware node of the GPIO chip, not its label for software
node lookup
- fix invalid pointer access in GPIO debugfs
- drop unused functions from gpio-tb10x
- fix a regression in gpio-aggregator: restore the set_config()
callback in the driver
- correct schema $id path in ti,twl4030 DT bindings
* tag 'gpio-fixes-for-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: tb10x: Drop unused tb10x_set_bits() function
gpio: aggregator: restore the set_config operation
gpiolib: fix invalid pointer access in debugfs
gpio: swnode: don't use the swnode's name as the key for GPIO lookup
dt-bindings: gpio: ti,twl4030: Correct the schema $id path
