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95 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
feff82eb5f |
RISC-V updates for v7.1
- Add Kunit correctness testing and microbenchmarks for strlen(),
strnlen(), and strrchr()
- Add RISC-V-specific strnlen(), strchr(), strrchr() implementations
- Add hardware error exception handling
- Clean up and optimize our unaligned access probe code
- Enable HAVE_IOREMAP_PROT to be able to use generic_access_phys()
- Remove XIP kernel support
- Warn when addresses outside the vmemmap range are passed to
vmemmap_populate()
- Update the ACPI FADT revision check to warn if it's not at least
ACPI v6.6, which is when key RISC-V-specific tables were added to the
specification
- Increase COMMAND_LINE_SIZE to 2048 to match ARM64, x86, PowerPC, etc.
- Make kaslr_offset() a static inline function, since there's no need
for it to show up in the symbol table
- Add KASLR offset and SATP to the VMCOREINFO ELF notes to improve
kdump support
- Add Makefile cleanup rule for vdso_cfi copied source files, and add
a .gitignore for the build artifacts in that directory
- Remove some redundant ifdefs that check Kconfig macros
- Add missing SPDX license tag to the CFI selftest
- Simplify UTS_MACHINE assignment in the RISC-V Makefile
- Clarify some unclear comments and remove some superfluous comments
- Fix various English typos across the RISC-V codebase
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Merge tag 'riscv-for-linus-7.1-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Paul Walmsley:
"There is one significant change outside arch/riscv in this pull
request: the addition of a set of KUnit tests for strlen(), strnlen(),
and strrchr().
Otherwise, the most notable changes are to add some RISC-V-specific
string function implementations, to remove XIP kernel support, to add
hardware error exception handling, and to optimize our runtime
unaligned access speed testing.
A few comments on the motivation for removing XIP support. It's been
broken in the RISC-V kernel for months. The code is not easy to
maintain. Furthermore, for XIP support to truly be useful for RISC-V,
we think that compile-time feature switches would need to be added for
many of the RISC-V ISA features and microarchitectural properties that
are currently implemented with runtime patching. No one has stepped
forward to take responsibility for that work, so many of us think it's
best to remove it until clear use cases and champions emerge.
Summary:
- Add Kunit correctness testing and microbenchmarks for strlen(),
strnlen(), and strrchr()
- Add RISC-V-specific strnlen(), strchr(), strrchr() implementations
- Add hardware error exception handling
- Clean up and optimize our unaligned access probe code
- Enable HAVE_IOREMAP_PROT to be able to use generic_access_phys()
- Remove XIP kernel support
- Warn when addresses outside the vmemmap range are passed to
vmemmap_populate()
- Update the ACPI FADT revision check to warn if it's not at least
ACPI v6.6, which is when key RISC-V-specific tables were added to
the specification
- Increase COMMAND_LINE_SIZE to 2048 to match ARM64, x86, PowerPC,
etc.
- Make kaslr_offset() a static inline function, since there's no need
for it to show up in the symbol table
- Add KASLR offset and SATP to the VMCOREINFO ELF notes to improve
kdump support
- Add Makefile cleanup rule for vdso_cfi copied source files, and add
a .gitignore for the build artifacts in that directory
- Remove some redundant ifdefs that check Kconfig macros
- Add missing SPDX license tag to the CFI selftest
- Simplify UTS_MACHINE assignment in the RISC-V Makefile
- Clarify some unclear comments and remove some superfluous comments
- Fix various English typos across the RISC-V codebase"
* tag 'riscv-for-linus-7.1-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (31 commits)
riscv: Remove support for XIP kernel
riscv: Reuse compare_unaligned_access() in check_vector_unaligned_access()
riscv: Split out compare_unaligned_access()
riscv: Reuse measure_cycles() in check_vector_unaligned_access()
riscv: Split out measure_cycles() for reuse
riscv: Clean up & optimize unaligned scalar access probe
riscv: lib: add strrchr() implementation
riscv: lib: add strchr() implementation
riscv: lib: add strnlen() implementation
lib/string_kunit: extend benchmarks to strnlen() and chr searches
lib/string_kunit: add performance benchmark for strlen()
lib/string_kunit: add correctness test for strrchr()
lib/string_kunit: add correctness test for strnlen()
lib/string_kunit: add correctness test for strlen()
riscv: vdso_cfi: Add .gitignore for build artifacts
riscv: vdso_cfi: Add clean rule for copied sources
riscv: enable HAVE_IOREMAP_PROT
riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()
riscv: acpi: update FADT revision check to 6.6
riscv: add hardware error trap handler support
...
|
||
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Linus Torvalds
|
b66cb4f156 |
printk changes for 7.1
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||
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Petr Mladek
|
3e9e952bb3 | Merge branch 'for-7.1-printf-kunit-build' into for-linus | ||
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Linus Torvalds
|
40735a683b |
mm.git review status for linus..mm-stable
Everything: Total patches: 121 Reviews/patch: 2.11 Reviewed rate: 90% Excluding DAMON: Total patches: 113 Reviews/patch: 2.25 Reviewed rate: 96% - The 33 patch series "Eliminate Dying Memory Cgroup" from Qi Zheng and Muchun Song addresses the longstanding "dying memcg problem". A situation wherein a no-longer-used memory control group will hang around for an extended period pointlessly consuming memory. The [0/N] changelog has a good overview of this work. - The 3 patch series "fix unexpected type conversions and potential overflows" from Qi Zheng fixes a couple of potential 32-bit/64-bit issues which were identified during review of the "Eliminate Dying Memory Cgroup" series. - The 6 patch series "kho: history: track previous kernel version and kexec boot count" from Breno Leitao uses Kexec Handover (KHO) to pass the previous kernel's version string and the number of kexec reboots since the last cold boot to the next kernel, and prints it at boot time. - The 4 patch series "liveupdate: prevent double preservation" from Pasha Tatashin teaches LUO to avoid managing the same file across different active sessions. - The 10 patch series "liveupdate: Fix module unloading and unregister API" from Pasha Tatashin addresses an issue with how LUO handles module reference counting and unregistration during module unloading. - The 2 patch series "zswap pool per-CPU acomp_ctx simplifications" from Kanchana Sridhar simplifies and cleans up the zswap crypto compression handling and improves the lifecycle management of zswap pool's per-CPU acomp_ctx resources. - The 2 patch series "mm/damon/core: fix damon_call()/damos_walk() vs kdmond exit race" from SeongJae Park addresses unlikely but possible leaks and deadlocks in damon_call() and damon_walk(). - The 2 patch series "mm/damon/core: validate damos_quota_goal->nid" from SeongJae Park fixes a couple of root-only wild pointer dereferences. - The 2 patch series "Docs/admin-guide/mm/damon: warn commit_inputs vs other params race" from SeongJae Park updates the DAMON documentation to warn operators about potential races which can occur if the commit_inputs parameter is altered at the wrong time. - The 3 patch series "Minor hmm_test fixes and cleanups" from Alistair Popple implements two bugfixes a cleanup for the HMM kernel selftests. - The 6 patch series "Modify memfd_luo code" from Chenghao Duan provides cleanups, simplifications and speedups in the memfd_lou code. - The 4 patch series "mm, kvm: allow uffd support in guest_memfd" from Mike Rapoport enables support for userfaultfd in guest_memfd. - The 6 patch series "selftests/mm: skip several tests when thp is not available" from Chunyu Hu fixes several issues in the selftests code which were causing breakage when the tests were run on CONFIG_THP=n kernels. - The 2 patch series "mm/mprotect: micro-optimization work" from Pedro Falcato implements a couple of nice speedups for mprotect(). - The 3 patch series "MAINTAINERS: update KHO and LIVE UPDATE entries" from Pratyush Yadav reflects upcoming changes in the maintenance of KHO, LUO, memfd_luo, kexec, crash, kdump and probably other kexec-based things - they are being moved out of mm.git and into a new git tree. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaeNL/wAKCRDdBJ7gKXxA jt7EAQCEEQvYYTjld+8HJKsCbavY4pEfci7z4SBiQyIPjRracQD/ZfjXnzL7ucc1 b6q6G4TcslvIDBgzVkk9G2BVn2oCoAg= =3ozv -----END PGP SIGNATURE----- Merge tag 'mm-stable-2026-04-18-02-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull more MM updates from Andrew Morton: - "Eliminate Dying Memory Cgroup" (Qi Zheng and Muchun Song) Address the longstanding "dying memcg problem". A situation wherein a no-longer-used memory control group will hang around for an extended period pointlessly consuming memory - "fix unexpected type conversions and potential overflows" (Qi Zheng) Fix a couple of potential 32-bit/64-bit issues which were identified during review of the "Eliminate Dying Memory Cgroup" series - "kho: history: track previous kernel version and kexec boot count" (Breno Leitao) Use Kexec Handover (KHO) to pass the previous kernel's version string and the number of kexec reboots since the last cold boot to the next kernel, and print it at boot time - "liveupdate: prevent double preservation" (Pasha Tatashin) Teach LUO to avoid managing the same file across different active sessions - "liveupdate: Fix module unloading and unregister API" (Pasha Tatashin) Address an issue with how LUO handles module reference counting and unregistration during module unloading - "zswap pool per-CPU acomp_ctx simplifications" (Kanchana Sridhar) Simplify and clean up the zswap crypto compression handling and improve the lifecycle management of zswap pool's per-CPU acomp_ctx resources - "mm/damon/core: fix damon_call()/damos_walk() vs kdmond exit race" (SeongJae Park) Address unlikely but possible leaks and deadlocks in damon_call() and damon_walk() - "mm/damon/core: validate damos_quota_goal->nid" (SeongJae Park) Fix a couple of root-only wild pointer dereferences - "Docs/admin-guide/mm/damon: warn commit_inputs vs other params race" (SeongJae Park) Update the DAMON documentation to warn operators about potential races which can occur if the commit_inputs parameter is altered at the wrong time - "Minor hmm_test fixes and cleanups" (Alistair Popple) Bugfixes and a cleanup for the HMM kernel selftests - "Modify memfd_luo code" (Chenghao Duan) Cleanups, simplifications and speedups to the memfd_lou code - "mm, kvm: allow uffd support in guest_memfd" (Mike Rapoport) Support for userfaultfd in guest_memfd - "selftests/mm: skip several tests when thp is not available" (Chunyu Hu) Fix several issues in the selftests code which were causing breakage when the tests were run on CONFIG_THP=n kernels - "mm/mprotect: micro-optimization work" (Pedro Falcato) A couple of nice speedups for mprotect() - "MAINTAINERS: update KHO and LIVE UPDATE entries" (Pratyush Yadav) Document upcoming changes in the maintenance of KHO, LUO, memfd_luo, kexec, crash, kdump and probably other kexec-based things - they are being moved out of mm.git and into a new git tree * tag 'mm-stable-2026-04-18-02-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (121 commits) MAINTAINERS: add page cache reviewer mm/vmscan: avoid false-positive -Wuninitialized warning MAINTAINERS: update Dave's kdump reviewer email address MAINTAINERS: drop include/linux/liveupdate from LIVE UPDATE MAINTAINERS: drop include/linux/kho/abi/ from KHO MAINTAINERS: update KHO and LIVE UPDATE maintainers MAINTAINERS: update kexec/kdump maintainers entries mm/migrate_device: remove dead migration entry check in migrate_vma_collect_huge_pmd() selftests: mm: skip charge_reserved_hugetlb without killall userfaultfd: allow registration of ranges below mmap_min_addr mm/vmstat: fix vmstat_shepherd double-scheduling vmstat_update mm/hugetlb: fix early boot crash on parameters without '=' separator zram: reject unrecognized type= values in recompress_store() docs: proc: document ProtectionKey in smaps mm/mprotect: special-case small folios when applying permissions mm/mprotect: move softleaf code out of the main function mm: remove '!root_reclaim' checking in should_abort_scan() mm/sparse: fix comment for section map alignment mm/page_io: use sio->len for PSWPIN accounting in sio_read_complete() selftests/mm: transhuge_stress: skip the test when thp not available ... |
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Pasha Tatashin
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074488008d |
liveupdate: remove liveupdate_test_unregister()
Now that file handler unregistration automatically unregisters all associated file handlers (FLBs), the liveupdate_test_unregister() function is no longer needed. Remove it along with its usages and declarations. Link: https://lore.kernel.org/20260327033335.696621-9-pasha.tatashin@soleen.com Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com> Reviewed-by: Pratyush Yadav (Google) <pratyush@kernel.org> Cc: David Matlack <dmatlack@google.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Samiullah Khawaja <skhawaja@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
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Linus Torvalds
|
440d6635b2 |
mm.git review status for linus..mm-nonmm-stable
Total patches: 126
Reviews/patch: 0.92
Reviewed rate: 76%
- The 2 patch series "pid: make sub-init creation retryable" from Oleg
Nesterov increases the robustness of our creation of init in a new
namespace. By clearing away some historical cruft which is no longer
needed. Also some documentation fixups are provided.
- The 2 patch series "selftests/fchmodat2: Error handling and general"
from Mark Brown has a fixup and a cleanup for the fchmodat2() syscall
selftest.
- The 3 patch series "lib: polynomial: Move to math/ and clean up" from
Andy Shevchenko does as advertised.
- The 3 patch series "hung_task: Provide runtime reset interface for
hung task detector" from Aaron Tomlin gives administrators the ability
to zero out /proc/sys/kernel/hung_task_detect_count.
- The 2 patch series "tools/getdelays: use the static UAPI headers from
tools/include/uapi" from Thomas Weißschuh teaches getdelays to use the
in-kernel UAPI headers rather than the system-provided ones.
- The 5 patch series "watchdog/hardlockup: Improvements to hardlockup"
from Mayank Rungta provides several cleanups and fixups to the
hardlockup detector code and its documentation.
- The 2 patch series "lib/bch: fix undefined behavior from signed
left-shifts" from Josh Law provides a couple of small/theoretical fixes
in the bch code.
- The 2 patch series "ocfs2/dlm: fix two bugs in dlm_match_regions()"
from Junrui Luo does what is claims.
- The 27 patch series "cleanup the RAID5 XOR library" from Christoph
Hellwig is a quite far-reaching cleanup to this code. I can't do better
than to quote Christoph:
The XOR library used for the RAID5 parity is a bit of a mess right
now. The main file sits in crypto/ despite not being cryptography and
not using the crypto API, with the generic implementations sitting in
include/asm-generic and the arch implementations sitting in an asm/
header in theory. The latter doesn't work for many cases, so
architectures often build the code directly into the core kernel, or
create another module for the architecture code.
Change this to a single module in lib/ that also contains the
architecture optimizations, similar to the library work Eric Biggers
has done for the CRC and crypto libraries later. After that it
changes to better calling conventions that allow for smarter
architecture implementations (although none is contained here yet),
and uses static_call to avoid indirection function call overhead.
- The 2 patch series "lib/list_sort: Clean up list_sort() scheduling
workarounds" from Kuan-Wei Chiu cleans up this library code by removing
a hacky thing which was added for UBIFS, which UBIFS doesn't actually
need.
- The 5 patch series "Fix bugs in extract_iter_to_sg()" from Christian
Ehrhardt fixes a few bugs in the scatterlist code, adds in-kernel tests
for the now-fixed bugs and fixes a leak in the test itself.
- The 3 patch series "kdump: Enable LUKS-encrypted dump target support
in ARM64 and PowerPC" from Coiby Xu eenables support of the
LUKS-encrypted device dump target on arm64 and powerpc.
- The 4 patch series "ocfs2: consolidate extent list validation into
block read callbacks" from Joseph Qi addresses ocfs2's validation of
extent list fields - cleanup, simplification, robustness. (Kernel test
robot loves mounting corrupted fs images!)
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Merge tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "pid: make sub-init creation retryable" (Oleg Nesterov)
Make creation of init in a new namespace more robust by clearing away
some historical cruft which is no longer needed. Also some
documentation fixups
- "selftests/fchmodat2: Error handling and general" (Mark Brown)
Fix and a cleanup for the fchmodat2() syscall selftest
- "lib: polynomial: Move to math/ and clean up" (Andy Shevchenko)
- "hung_task: Provide runtime reset interface for hung task detector"
(Aaron Tomlin)
Give administrators the ability to zero out
/proc/sys/kernel/hung_task_detect_count
- "tools/getdelays: use the static UAPI headers from
tools/include/uapi" (Thomas Weißschuh)
Teach getdelays to use the in-kernel UAPI headers rather than the
system-provided ones
- "watchdog/hardlockup: Improvements to hardlockup" (Mayank Rungta)
Several cleanups and fixups to the hardlockup detector code and its
documentation
- "lib/bch: fix undefined behavior from signed left-shifts" (Josh Law)
A couple of small/theoretical fixes in the bch code
- "ocfs2/dlm: fix two bugs in dlm_match_regions()" (Junrui Luo)
- "cleanup the RAID5 XOR library" (Christoph Hellwig)
A quite far-reaching cleanup to this code. I can't do better than to
quote Christoph:
"The XOR library used for the RAID5 parity is a bit of a mess right
now. The main file sits in crypto/ despite not being cryptography
and not using the crypto API, with the generic implementations
sitting in include/asm-generic and the arch implementations
sitting in an asm/ header in theory. The latter doesn't work for
many cases, so architectures often build the code directly into
the core kernel, or create another module for the architecture
code.
Change this to a single module in lib/ that also contains the
architecture optimizations, similar to the library work Eric
Biggers has done for the CRC and crypto libraries later. After
that it changes to better calling conventions that allow for
smarter architecture implementations (although none is contained
here yet), and uses static_call to avoid indirection function call
overhead"
- "lib/list_sort: Clean up list_sort() scheduling workarounds"
(Kuan-Wei Chiu)
Clean up this library code by removing a hacky thing which was added
for UBIFS, which UBIFS doesn't actually need
- "Fix bugs in extract_iter_to_sg()" (Christian Ehrhardt)
Fix a few bugs in the scatterlist code, add in-kernel tests for the
now-fixed bugs and fix a leak in the test itself
- "kdump: Enable LUKS-encrypted dump target support in ARM64 and
PowerPC" (Coiby Xu)
Enable support of the LUKS-encrypted device dump target on arm64 and
powerpc
- "ocfs2: consolidate extent list validation into block read callbacks"
(Joseph Qi)
Cleanup, simplify, and make more robust ocfs2's validation of extent
list fields (Kernel test robot loves mounting corrupted fs images!)
* tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (127 commits)
ocfs2: validate group add input before caching
ocfs2: validate bg_bits during freefrag scan
ocfs2: fix listxattr handling when the buffer is full
doc: watchdog: fix typos etc
update Sean's email address
ocfs2: use get_random_u32() where appropriate
ocfs2: split transactions in dio completion to avoid credit exhaustion
ocfs2: remove redundant l_next_free_rec check in __ocfs2_find_path()
ocfs2: validate extent block list fields during block read
ocfs2: remove empty extent list check in ocfs2_dx_dir_lookup_rec()
ocfs2: validate dx_root extent list fields during block read
ocfs2: fix use-after-free in ocfs2_fault() when VM_FAULT_RETRY
ocfs2: handle invalid dinode in ocfs2_group_extend
.get_maintainer.ignore: add Askar
ocfs2: validate bg_list extent bounds in discontig groups
checkpatch: exclude forward declarations of const structs
tools/accounting: handle truncated taskstats netlink messages
taskstats: set version in TGID exit notifications
ocfs2/heartbeat: fix slot mapping rollback leaks on error paths
arm64,ppc64le/kdump: pass dm-crypt keys to kdump kernel
...
|
||
|
Petr Mladek
|
8901ac9d2c |
printf: Compile the kunit test with DISABLE_BRANCH_PROFILING DISABLE_BRANCH_PROFILING
GCC < 12.1 can miscompile printf_kunit's errptr() test when branch
profiling is enabled. BUILD_BUG_ON(IS_ERR(PTR)) is a constant false
expression, but CONFIG_TRACE_BRANCH_PROFILING and
CONFIG_PROFILE_ALL_BRANCHES make the IS_ERR() path side-effectful.
GCC's IPA splitter can then outline the cold assert arm into
errptr.part.* and leave that clone with an unconditional
__compiletime_assert_*() call, causing a false build failure.
This started showing up after test_hashed() became a macro and moved its
local buffer into errptr(), which changed GCC's inlining and splitting
decisions enough to expose the compiler bug.
Workaround the problem by disabling the branch profiling for
printf_kunit.o. It is a straightforward and acceptable solution.
The workaround can be removed once the minimum GCC includes commit
76fe49423047 ("Fix tree-optimization/101941: IPA splitting out
function with error attribute"), which first shipped in GCC 12.1.
Fixes:
|
||
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Harry Yoo (Oracle)
|
92af129b40 |
lib/tests/slub_kunit: add a test case for {kmalloc,kfree}_nolock
Testing invocation of {kmalloc,kfree}_nolock() during kmalloc() or
kfree() is tricky, and it is even harder to ensure that slowpaths are
properly tested. Lack of such testing has led to late discovery of
the bug fixed by commit
|
||
|
Feng Jiang
|
e73bcb3708 |
lib/string_kunit: extend benchmarks to strnlen() and chr searches
Extend the string benchmarking suite to include strnlen(), strchr(), and strrchr(). For character search functions strchr() and strrchr(), the benchmark targets the NUL character. This ensures the entire string is scanned, providing a consistent measure of full-length processing efficiency comparable to strlen(). Suggested-by: Andy Shevchenko <andy@kernel.org> Suggested-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn> Acked-by: Andy Shevchenko <andy@kernel.org> Reviewed-by: Kees Cook <kees@kernel.org> Link: https://patch.msgid.link/20260130025018.172925-6-jiangfeng@kylinos.cn Signed-off-by: Paul Walmsley <pjw@kernel.org> |
||
|
Feng Jiang
|
0020240a43 |
lib/string_kunit: add performance benchmark for strlen()
Introduce a benchmarking framework to the string_kunit test suite to measure the execution efficiency of string functions. The implementation is inspired by crc_benchmark(), measuring throughput (MB/s) and latency (ns/call) across a range of string lengths. It includes a warm-up phase, disables preemption during measurement, and uses a fixed seed for reproducible results. This framework allows for comparing different implementations (e.g., generic C vs. architecture-optimized assembly) within the KUnit environment. Initially, provide a benchmark for strlen(). Suggested-by: Andy Shevchenko <andy@kernel.org> Suggested-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn> Reviewed-by: Kees Cook <kees@kernel.org> Link: https://patch.msgid.link/20260130025018.172925-5-jiangfeng@kylinos.cn [pjw@kernel.org: fixed a checkpatch issue] Signed-off-by: Paul Walmsley <pjw@kernel.org> |
||
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Feng Jiang
|
27b2810a4a |
lib/string_kunit: add correctness test for strrchr()
Add a KUnit test for strrchr() to verify correctness across different string lengths and memory alignments. Use vmalloc() to place the NUL character at the page boundary to ensure over-reads are detected. Suggested-by: Kees Cook <kees@kernel.org> Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn> Reviewed-by: Kees Cook <kees@kernel.org> Link: https://patch.msgid.link/20260130025018.172925-4-jiangfeng@kylinos.cn Signed-off-by: Paul Walmsley <pjw@kernel.org> |
||
|
Feng Jiang
|
263dca234e |
lib/string_kunit: add correctness test for strnlen()
Add a KUnit test for strnlen() to verify correctness across different string lengths and memory alignments. Use vmalloc() to place the NUL character at the page boundary to ensure over-reads are detected. Suggested-by: Andy Shevchenko <andy@kernel.org> Suggested-by: Kees Cook <kees@kernel.org> Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn> Reviewed-by: Kees Cook <kees@kernel.org> Link: https://patch.msgid.link/20260130025018.172925-3-jiangfeng@kylinos.cn Signed-off-by: Paul Walmsley <pjw@kernel.org> |
||
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Feng Jiang
|
ae45f896a4 |
lib/string_kunit: add correctness test for strlen()
Add a KUnit test for strlen() to verify correctness across different string lengths and memory alignments. Use vmalloc() to place the NUL character at the page boundary to ensure over-reads are detected. Suggested-by: Kees Cook <kees@kernel.org> Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn> Reviewed-by: Kees Cook <kees@kernel.org> Link: https://patch.msgid.link/20260130025018.172925-2-jiangfeng@kylinos.cn Signed-off-by: Paul Walmsley <pjw@kernel.org> |
||
|
Christian A. Ehrhardt
|
0913b75547 |
lib: kunit_iov_iter: add tests for extract_iter_to_sg
Add test cases that test extract_iter_to_sg. For each iterator type an iterator is loaded with a suitable buffer. The iterator is then extracted to a scatterlist with multiple calls to extract_iter_to_sg. The final scatterlist is copied into a scratch buffer. The test passes if the scratch buffer contains the same data as the original buffer. The new tests demonstrate bugs in extract_iter_to_sg for kvec and user iterators that are fixed by the previous commits. Link: https://lkml.kernel.org/r/20260326214905.818170-6-lk@c--e.de Signed-off-by: Christian A. Ehrhardt <lk@c--e.de> Cc: David Howells <dhowells@redhat.com> Cc: David Gow <davidgow@google.com> Cc: Kees Cook <kees@kernel.org> Cc: Petr Mladek <pmladek@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
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Christian A. Ehrhardt
|
7278aa840b |
lib: kunit_iov_iter: improve error detection
In the kunit_iov_iter test prevent the kernel buffer from being a single physically contiguous region. Additionally, make sure that the test pattern written to a page in the buffer depends on the offset of the page within the buffer. Link: https://lkml.kernel.org/r/20260326214905.818170-5-lk@c--e.de Signed-off-by: Christian A. Ehrhardt <lk@c--e.de> Cc: David Howells <dhowells@redhat.com> Cc: David Gow <davidgow@google.com> Cc: Kees Cook <kees@kernel.org> Cc: Petr Mladek <pmladek@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
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Christian A. Ehrhardt
|
0b49c7d0ae |
lib: kunit_iov_iter: fix memory leaks
Use vfree() instead of vunmap() to free the buffer allocated by
iov_kunit_create_buffer() because vunmap() does not honour
VM_MAP_PUT_PAGES. In order for this to work the page array itself must
not be managed by kunit.
Remove the folio_put() when destroying a folioq. This is handled by
vfree(), now.
Pointed out by sashiko.dev on a previous iteration of this series.
Tested by running the kunit test 10000 times in a loop.
Link: https://lkml.kernel.org/r/20260326214905.818170-4-lk@c--e.de
Fixes:
|
||
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Shuvam Pandey
|
f4cf0992be |
printf: add IPv6 address format tests
printf_kunit already covers IPv4 address formatting, but the ip6() test case is empty even though printk-formats.rst documents %pI6, %pi6, %pI6c, and generic %pIS variants. Add focused IPv6 checks for raw and generic formatting, compressed output, the single-zero %pI6c corner case, and bracketed port formatting for sockaddr_in6. Signed-off-by: Shuvam Pandey <shuvampandey1@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Tested-by: Petr Mladek <pmladek@suse.com> Link: https://patch.msgid.link/20260317114548.98919-1-shuvampandey1@gmail.com [pmladek@suse.com: Removed non-necessary details from the commit message.] Signed-off-by: Petr Mladek <pmladek@suse.com> |
||
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Linus Torvalds
|
32a92f8c89 |
Convert more 'alloc_obj' cases to default GFP_KERNEL arguments
This converts some of the visually simpler cases that have been split over multiple lines. I only did the ones that are easy to verify the resulting diff by having just that final GFP_KERNEL argument on the next line. Somebody should probably do a proper coccinelle script for this, but for me the trivial script actually resulted in an assertion failure in the middle of the script. I probably had made it a bit _too_ trivial. So after fighting that far a while I decided to just do some of the syntactically simpler cases with variations of the previous 'sed' scripts. The more syntactically complex multi-line cases would mostly really want whitespace cleanup anyway. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
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Linus Torvalds
|
bf4afc53b7 |
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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||
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Kees Cook
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69050f8d6d |
treewide: Replace kmalloc with kmalloc_obj for non-scalar types
This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook <kees@kernel.org> |
||
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Linus Torvalds
|
136114e0ab |
mm.git review status for linus..mm-nonmm-stable
Total patches: 107 Reviews/patch: 1.07 Reviewed rate: 67% - The 2 patch series "ocfs2: give ocfs2 the ability to reclaim suballocator free bg" from Heming Zhao saves disk space by teaching ocfs2 to reclaim suballocator block group space. - The 4 patch series "Add ARRAY_END(), and use it to fix off-by-one bugs" from Alejandro Colomar adds the ARRAY_END() macro and uses it in various places. - The 2 patch series "vmcoreinfo: support VMCOREINFO_BYTES larger than PAGE_SIZE" from Pnina Feder makes the vmcore code future-safe, if VMCOREINFO_BYTES ever exceeds the page size. - The 7 patch series "kallsyms: Prevent invalid access when showing module buildid" from Petr Mladek cleans up kallsyms code related to module buildid and fixes an invalid access crash when printing backtraces. - The 3 patch series "Address page fault in ima_restore_measurement_list()" from Harshit Mogalapalli fixes a kexec-related crash that can occur when booting the second-stage kernel on x86. - The 6 patch series "kho: ABI headers and Documentation updates" from Mike Rapoport updates the kexec handover ABI documentation. - The 4 patch series "Align atomic storage" from Finn Thain adds the __aligned attribute to atomic_t and atomic64_t definitions to get natural alignment of both types on csky, m68k, microblaze, nios2, openrisc and sh. - The 2 patch series "kho: clean up page initialization logic" from Pratyush Yadav simplifies the page initialization logic in kho_restore_page(). - The 6 patch series "Unload linux/kernel.h" from Yury Norov moves several things out of kernel.h and into more appropriate places. - The 7 patch series "don't abuse task_struct.group_leader" from Oleg Nesterov removes the usage of ->group_leader when it is "obviously unnecessary". - The 5 patch series "list private v2 & luo flb" from Pasha Tatashin adds some infrastructure improvements to the live update orchestrator. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaY4giAAKCRDdBJ7gKXxA jgusAQDnKkP8UWTqXPC1jI+OrDJGU5ciAx8lzLeBVqMKzoYk9AD/TlhT2Nlx+Ef6 0HCUHUD0FMvAw/7/Dfc6ZKxwBEIxyww= =mmsH -----END PGP SIGNATURE----- Merge tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: - "ocfs2: give ocfs2 the ability to reclaim suballocator free bg" saves disk space by teaching ocfs2 to reclaim suballocator block group space (Heming Zhao) - "Add ARRAY_END(), and use it to fix off-by-one bugs" adds the ARRAY_END() macro and uses it in various places (Alejandro Colomar) - "vmcoreinfo: support VMCOREINFO_BYTES larger than PAGE_SIZE" makes the vmcore code future-safe, if VMCOREINFO_BYTES ever exceeds the page size (Pnina Feder) - "kallsyms: Prevent invalid access when showing module buildid" cleans up kallsyms code related to module buildid and fixes an invalid access crash when printing backtraces (Petr Mladek) - "Address page fault in ima_restore_measurement_list()" fixes a kexec-related crash that can occur when booting the second-stage kernel on x86 (Harshit Mogalapalli) - "kho: ABI headers and Documentation updates" updates the kexec handover ABI documentation (Mike Rapoport) - "Align atomic storage" adds the __aligned attribute to atomic_t and atomic64_t definitions to get natural alignment of both types on csky, m68k, microblaze, nios2, openrisc and sh (Finn Thain) - "kho: clean up page initialization logic" simplifies the page initialization logic in kho_restore_page() (Pratyush Yadav) - "Unload linux/kernel.h" moves several things out of kernel.h and into more appropriate places (Yury Norov) - "don't abuse task_struct.group_leader" removes the usage of ->group_leader when it is "obviously unnecessary" (Oleg Nesterov) - "list private v2 & luo flb" adds some infrastructure improvements to the live update orchestrator (Pasha Tatashin) * tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (107 commits) watchdog/hardlockup: simplify perf event probe and remove per-cpu dependency procfs: fix missing RCU protection when reading real_parent in do_task_stat() watchdog/softlockup: fix sample ring index wrap in need_counting_irqs() kcsan, compiler_types: avoid duplicate type issues in BPF Type Format kho: fix doc for kho_restore_pages() tests/liveupdate: add in-kernel liveupdate test liveupdate: luo_flb: introduce File-Lifecycle-Bound global state liveupdate: luo_file: Use private list list: add kunit test for private list primitives list: add primitives for private list manipulations delayacct: fix uapi timespec64 definition panic: add panic_force_cpu= parameter to redirect panic to a specific CPU netclassid: use thread_group_leader(p) in update_classid_task() RDMA/umem: don't abuse current->group_leader drm/pan*: don't abuse current->group_leader drm/amd: kill the outdated "Only the pthreads threading model is supported" checks drm/amdgpu: don't abuse current->group_leader android/binder: use same_thread_group(proc->tsk, current) in binder_mmap() android/binder: don't abuse current->group_leader kho: skip memoryless NUMA nodes when reserving scratch areas ... |
||
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Linus Torvalds
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db9571a661 |
printk changes for 7.0
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Merge tag 'printk-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk updates from Petr Mladek:
- Check all mandatory callbacks when registering nbcon consoles
- Fix some compiler warnings
* tag 'printk-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
vsnprintf: drop __printf() attributes on binary printing functions
printf: convert test_hashed into macro
printk: nbcon: Check for device_{lock,unlock} callbacks
|
||
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Petr Mladek
|
9abbecf408 | Merge branch 'for-6.20' into for-linus | ||
|
Linus Torvalds
|
f144367d01 |
bitmap updates for v6.20
- more rust helpers (Alice); - more bitops tests (Ryota); - FIND_NTH_BIT() uninitialized variable fix (Lee Yongjun); - random cleanups (Andy, H. Peter). -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEEi8GdvG6xMhdgpu/4sUSA/TofvsgFAmmJIqMACgkQsUSA/Tof vsj/uwv/WIv9Wa3oTm3qzkIyaxeowIQE+DeDduporSoO8fnVfEYHjPuihMy3J5Gv x6iNUq9n8fMhmg/qHHyKwb/Ow8Ob11re9MZWS6a02wlm8Het0W9hKEk1z7qauFsI Vqq3rlMO3wYGaSPmlnh7rn/NHByrJ49ZrJcoX3he0Ov5MKp1w+dP3Czee4HGTb3A SM0cf4iCR3/Jj3flTsMghZgqZKNhsIe+ejX++dFPhmv82FHbIBcwUfN6CM27OGdy M7GAro1xIaoTwQVKCO2AycLAu8j+Rx9s+mcGuIAWynDo6YG1tVetADZQ+nRJG+x9 WdUDZwBDyEZlx/8BGnS56wevYxXEfC0lMTTgBqsYlCtLToyeE8G6NUVCLzEJAQCJ iWhcsenQVIiEHtYBZI/o2PmEp1Puzk1jI0+uFib1jE5Llf3+FrfMQGOiN2TBStEa zVIOipr+L9EaBbJdiKCV1jTl/MoDuCdRPLyby8egxPS+rk4RugvDsGc31XN48118 OHIJO2M/ =WnLV -----END PGP SIGNATURE----- Merge tag 'bitmap-for-6.20' of https://github.com/norov/linux Pull bitmap updates from Yury Norov: - more rust helpers (Alice) - more bitops tests (Ryota) - FIND_NTH_BIT() uninitialized variable fix (Lee Yongjun) - random cleanups (Andy, H. Peter) * tag 'bitmap-for-6.20' of https://github.com/norov/linux: lib/tests: extend KUnit test for bitops with more cases bitops: Add more files to the MAINTAINERS lib/find_bit: fix uninitialized variable use in FIND_NTH_BIT lib/tests: add KUnit test for bitops rust: cpumask: add __rust_helper to helpers rust: bitops: add __rust_helper to helpers rust: bitmap: add __rust_helper to helpers linux/bitfield.h: replace __auto_type with auto |
||
|
Ryota Sakamoto
|
6711069dd7 |
lib/tests: extend KUnit test for bitops with more cases
Extend a KUnit test suite for the bitops API to cover more APIs from
include/asm-generic/bitops/instrumented-atomic.h.
- change_bit()
- test_and_set_bit()
- test_and_clear_bit()
- test_and_change_bit()
Verified on x86_64, i386, and arm64 architectures.
Sample KUnit output:
KTAP version 1
# Subtest: test_change_bit
ok 1 BITOPS_4
ok 2 BITOPS_7
ok 3 BITOPS_11
ok 4 BITOPS_31
ok 5 BITOPS_88
# test_change_bit: pass:5 fail:0 skip:0 total:5
ok 2 test_change_bit
KTAP version 1
# Subtest: test_test_and_set_bit_test_and_clear_bit
ok 1 BITOPS_4
ok 2 BITOPS_7
ok 3 BITOPS_11
ok 4 BITOPS_31
ok 5 BITOPS_88
# test_test_and_set_bit_test_and_clear_bit: pass:5 fail:0 skip:0 total:5
ok 3 test_test_and_set_bit_test_and_clear_bit
KTAP version 1
# Subtest: test_test_and_change_bit
ok 1 BITOPS_4
ok 2 BITOPS_7
ok 3 BITOPS_11
ok 4 BITOPS_31
ok 5 BITOPS_88
# test_test_and_change_bit: pass:5 fail:0 skip:0 total:5
ok 4 test_test_and_change_bit
Signed-off-by: Ryota Sakamoto <sakamo.ryota@gmail.com>
Signed-off-by: Yury Norov <ynorov@nvidia.com>
|
||
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Ryota Sakamoto
|
4101b3b571 |
lib/tests: add KUnit test for bitops
Add a KUnit test suite for the bitops API.
The existing 'lib/test_bitops.c' is preserved as-is because it contains
ad-hoc micro-benchmarks 'test_fns' and is intended to ensure no compiler
warnings from C=1 sparse checker or -Wextra compilations.
Introduce 'lib/tests/bitops_kunit.c' for functional regression testing. It
ports the test logic and data patterns from 'lib/test_bitops.c' to KUnit,
verifying correct behavior across various input patterns and
architecture-specific edge cases using isolated stack-allocated bitmaps.
The following test logic has been ported from test_bitops_startup() in
lib/test_bitops.c:
- set_bit() / clear_bit() / find_first_bit() validation ->
test_set_bit_clear_bit()
- get_count_order() validation -> test_get_count_order()
- get_count_order_long() validation -> test_get_count_order_long()
Also improve the find_first_bit() test to check the full bitmap length
(BITOPS_LENGTH) instead of omitting the last bit, ensuring the bitmap is
completely empty after cleanup.
Verified on x86_64, i386, and arm64 architectures.
Sample KUnit output:
KTAP version 1
# Subtest: bitops
# module: bitops_kunit
1..3
KTAP version 1
# Subtest: test_set_bit_clear_bit
ok 1 BITOPS_4
ok 2 BITOPS_7
ok 3 BITOPS_11
ok 4 BITOPS_31
ok 5 BITOPS_88
# test_set_bit_clear_bit: pass:5 fail:0 skip:0 total:5
ok 1 test_set_bit_clear_bit
KTAP version 1
# Subtest: test_get_count_order
ok 1 0x00000003
ok 2 0x00000004
ok 3 0x00001fff
ok 4 0x00002000
ok 5 0x50000000
ok 6 0x80000000
ok 7 0x80003000
# test_get_count_order: pass:7 fail:0 skip:0 total:7
ok 2 test_get_count_order
KTAP version 1
# Subtest: test_get_count_order_long
ok 1 0x0000000300000000
ok 2 0x0000000400000000
ok 3 0x00001fff00000000
ok 4 0x0000200000000000
ok 5 0x5000000000000000
ok 6 0x8000000000000000
ok 7 0x8000300000000000
# test_get_count_order_long: pass:7 fail:0 skip:0 total:7
ok 3 test_get_count_order_long
[Yury: trim Kconfig help message]
CC: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Ryota Sakamoto <sakamo.ryota@gmail.com>
Signed-off-by: Yury Norov <ynorov@nvidia.com>
|
||
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Pasha Tatashin
|
f653ff7af9 |
tests/liveupdate: add in-kernel liveupdate test
Introduce an in-kernel test module to validate the core logic of the Live Update Orchestrator's File-Lifecycle-Bound feature. This provides a low-level, controlled environment to test FLB registration and callback invocation without requiring userspace interaction or actual kexec reboots. The test is enabled by the CONFIG_LIVEUPDATE_TEST Kconfig option. Link: https://lkml.kernel.org/r/20251218155752.3045808-6-pasha.tatashin@soleen.com Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com> Cc: Alexander Graf <graf@amazon.com> Cc: David Gow <davidgow@google.com> Cc: David Matlack <dmatlack@google.com> Cc: David Rientjes <rientjes@google.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kees Cook <kees@kernel.org> Cc: Mike Rapoport <rppt@kernel.org> Cc: Petr Mladek <pmladek@suse.com> Cc: Pratyush Yadav <pratyush@kernel.org> Cc: Samiullah Khawaja <skhawaja@google.com> Cc: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
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Pasha Tatashin
|
66bd8501ce |
list: add kunit test for private list primitives
Add a KUnit test suite for the new private list primitives. The test defines a struct with a __private list_head and exercises every macro defined in <linux/list_private.h>. This ensures that the macros correctly handle the ACCESS_PRIVATE() abstraction and compile without warnings when acting on private members, verifying that qualifiers are stripped and offsets are calculated correctly. Link: https://lkml.kernel.org/r/20251218155752.3045808-3-pasha.tatashin@soleen.com Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com> Reviewed-by: David Gow <davidgow@google.com> Cc: Alexander Graf <graf@amazon.com> Cc: David Matlack <dmatlack@google.com> Cc: David Rientjes <rientjes@google.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kees Cook <kees@kernel.org> Cc: Mike Rapoport <rppt@kernel.org> Cc: Petr Mladek <pmladek@suse.com> Cc: Pratyush Yadav <pratyush@kernel.org> Cc: Samiullah Khawaja <skhawaja@google.com> Cc: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Tamir Duberstein
|
9bfa52dac2 |
printf: convert test_hashed into macro
This allows the compiler to check the arguments against the __printf() attribute on __test(). This produces better diagnostics when incorrect inputs are passed. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202512061600.89CKQ3ag-lkp@intel.com/ Signed-off-by: Tamir Duberstein <tamird@kernel.org> Reviewed-by: Petr Mladek <pmladek@suse.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20260121-printf-kunit-printf-attr-v3-1-4144f337ec8b@kernel.org Signed-off-by: Petr Mladek <pmladek@suse.com> |
||
|
Kir Chou
|
bf45794244 |
lib/glob: convert selftest to KUnit
This patch converts the existing glob selftest (lib/globtest.c) to use the KUnit framework (lib/tests/glob_kunit.c). The new test: - Migrates all 64 test cases from the original test to the KUnit suite. - Removes the custom 'verbose' module parameter as KUnit handles logging. - Updates Kconfig.debug and Makefile to support the new KUnit test. - Updates Kconfig and Makefile to remove the original selftest. - Updates GLOB_SELFTEST to GLOB_KUNIT_TEST for arch/m68k/configs. This commit is verified by `./tools/testing/kunit/kunit.py run' with the .kunit/.kunitconfig: CONFIG_KUNIT=y CONFIG_GLOB_KUNIT_TEST=y Link: https://lkml.kernel.org/r/20260108120753.27339-1-note351@hotmail.com Signed-off-by: Kir Chou <note351@hotmail.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: David Gow <davidgow@google.com> Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com> Cc: <kirchou@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Ryota Sakamoto
|
d30aca3eef |
lib/tests: convert test_min_heap module to KUnit
Move lib/test_min_heap.c to lib/tests/min_heap_kunit.c and convert it to
use KUnit.
This change switches the ad-hoc test code to standard KUnit test cases.
The test data remains the same, but the verification logic is updated to
use KUNIT_EXPECT_* macros.
Also remove CONFIG_TEST_MIN_HEAP from arch/*/configs/* because it is no
longer used. The new CONFIG_MIN_HEAP_KUNIT_TEST will be automatically
enabled by CONFIG_KUNIT_ALL_TESTS.
The reasons for converting to KUnit are:
1. Standardization:
Switching from ad-hoc printk-based reporting to the standard
KTAP format makes it easier for CI systems to parse and report test
results
2. Better Diagnostics:
Using KUNIT_EXPECT_* macros automatically provides detailed
diagnostics on failure.
3. Tooling Integration:
It allows the test to be managed and executed using standard
KUnit tools.
Link: https://lkml.kernel.org/r/20251221133516.321846-1-sakamo.ryota@gmail.com
Signed-off-by: Ryota Sakamoto <sakamo.ryota@gmail.com>
Acked-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: David Gow <davidgow@google.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
||
|
Ryota Sakamoto
|
6dcd539f06 |
lib/tests: convert test_uuid module to KUnit
Move lib/test_uuid.c to lib/tests/uuid_kunit.c and convert it to use KUnit. This change switches the ad-hoc test code to standard KUnit test cases. The test data remains the same, but the verification logic is updated to use KUNIT_EXPECT_* macros. Also remove CONFIG_TEST_UUID from arch/*/configs/* because it is no longer used. The new CONFIG_UUID_KUNIT_TEST will be automatically enabled by CONFIG_KUNIT_ALL_TESTS. [lukas.bulwahn@redhat.com: MAINTAINERS: adjust file entry in UUID HELPERS] Link: https://lkml.kernel.org/r/20251217053907.2778515-1-lukas.bulwahn@redhat.com Link: https://lkml.kernel.org/r/20251215134322.12949-1-sakamo.ryota@gmail.com Signed-off-by: Ryota Sakamoto <sakamo.ryota@gmail.com> Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: David Gow <davidgow@google.com> Cc: Andriy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Brendan Higgins <brendan.higgins@linux.dev> Cc: Lukas Bulwahn <lukas.bulwahn@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Greg Kroah-Hartman
|
90b5f2dce9 |
test_list_sort: fix up const mismatch
In the internal cmp function, a const pointer is cast out to a non-const pointer by using container_of(). This is probably not what is intended at all, so fix up the const marking to properly preserve what is really happening (i.e. the const should flow through the container_of() call) Cc: Jakub Kicinski <kuba@kernel.org> Cc: David Gow <davidgow@google.com> Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Kees Cook <kees@kernel.org> Cc: linux-kernel@vger.kernel.org Link: https://lore.kernel.org/all/2025121751-backtrack-manifesto-7c57@gregkh/#r Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
||
|
Linus Torvalds
|
509d3f4584 |
Significant patch series in this pull request:
- The 6 patch series "panic: sys_info: Refactor and fix a potential
issue" from Andy Shevchenko fixes a build issue and does some cleanup in
ib/sys_info.c.
- The 9 patch series "Implement mul_u64_u64_div_u64_roundup()" from
David Laight enhances the 64-bit math code on behalf of a PWM driver and
beefs up the test module for these library functions.
- The 2 patch series "scripts/gdb/symbols: make BPF debug info available
to GDB" from Ilya Leoshkevich makes BPF symbol names, sizes, and line
numbers available to the GDB debugger.
- The 4 patch series "Enable hung_task and lockup cases to dump system
info on demand" from Feng Tang adds a sysctl which can be used to cause
additional info dumping when the hung-task and lockup detectors fire.
- The 6 patch series "lib/base64: add generic encoder/decoder, migrate
users" from Kuan-Wei Chiu adds a general base64 encoder/decoder to lib/
and migrates several users away from their private implementations.
- The 2 patch series "rbree: inline rb_first() and rb_last()" from Eric
Dumazet makes TCP a little faster.
- The 9 patch series "liveupdate: Rework KHO for in-kernel users" from
Pasha Tatashin reworks the KEXEC Handover interfaces in preparation for
Live Update Orchestrator (LUO), and possibly for other future clients.
- The 13 patch series "kho: simplify state machine and enable dynamic
updates" from Pasha Tatashin increases the flexibility of KEXEC
Handover. Also preparation for LUO.
- The 18 patch series "Live Update Orchestrator" from Pasha Tatashin is
a major new feature targeted at cloud environments. Quoting the [0/N]:
This series introduces the Live Update Orchestrator, a kernel subsystem
designed to facilitate live kernel updates using a kexec-based reboot.
This capability is critical for cloud environments, allowing hypervisors
to be updated with minimal downtime for running virtual machines. LUO
achieves this by preserving the state of selected resources, such as
memory, devices and their dependencies, across the kernel transition.
As a key feature, this series includes support for preserving memfd file
descriptors, which allows critical in-memory data, such as guest RAM or
any other large memory region, to be maintained in RAM across the kexec
reboot.
Mike Rappaport merits a mention here, for his extensive review and
testing work.
- The 3 patch series "kexec: reorganize kexec and kdump sysfs" from
Sourabh Jain moves the kexec and kdump sysfs entries from /sys/kernel/
to /sys/kernel/kexec/ and adds back-compatibility symlinks which can
hopefully be removed one day.
- The 2 patch series "kho: fixes for vmalloc restoration" from Mike
Rapoport fixes a BUG which was being hit during KHO restoration of
vmalloc() regions.
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Merge tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "panic: sys_info: Refactor and fix a potential issue" (Andy Shevchenko)
fixes a build issue and does some cleanup in ib/sys_info.c
- "Implement mul_u64_u64_div_u64_roundup()" (David Laight)
enhances the 64-bit math code on behalf of a PWM driver and beefs up
the test module for these library functions
- "scripts/gdb/symbols: make BPF debug info available to GDB" (Ilya Leoshkevich)
makes BPF symbol names, sizes, and line numbers available to the GDB
debugger
- "Enable hung_task and lockup cases to dump system info on demand" (Feng Tang)
adds a sysctl which can be used to cause additional info dumping when
the hung-task and lockup detectors fire
- "lib/base64: add generic encoder/decoder, migrate users" (Kuan-Wei Chiu)
adds a general base64 encoder/decoder to lib/ and migrates several
users away from their private implementations
- "rbree: inline rb_first() and rb_last()" (Eric Dumazet)
makes TCP a little faster
- "liveupdate: Rework KHO for in-kernel users" (Pasha Tatashin)
reworks the KEXEC Handover interfaces in preparation for Live Update
Orchestrator (LUO), and possibly for other future clients
- "kho: simplify state machine and enable dynamic updates" (Pasha Tatashin)
increases the flexibility of KEXEC Handover. Also preparation for LUO
- "Live Update Orchestrator" (Pasha Tatashin)
is a major new feature targeted at cloud environments. Quoting the
cover letter:
This series introduces the Live Update Orchestrator, a kernel
subsystem designed to facilitate live kernel updates using a
kexec-based reboot. This capability is critical for cloud
environments, allowing hypervisors to be updated with minimal
downtime for running virtual machines. LUO achieves this by
preserving the state of selected resources, such as memory,
devices and their dependencies, across the kernel transition.
As a key feature, this series includes support for preserving
memfd file descriptors, which allows critical in-memory data, such
as guest RAM or any other large memory region, to be maintained in
RAM across the kexec reboot.
Mike Rappaport merits a mention here, for his extensive review and
testing work.
- "kexec: reorganize kexec and kdump sysfs" (Sourabh Jain)
moves the kexec and kdump sysfs entries from /sys/kernel/ to
/sys/kernel/kexec/ and adds back-compatibility symlinks which can
hopefully be removed one day
- "kho: fixes for vmalloc restoration" (Mike Rapoport)
fixes a BUG which was being hit during KHO restoration of vmalloc()
regions
* tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (139 commits)
calibrate: update header inclusion
Reinstate "resource: avoid unnecessary lookups in find_next_iomem_res()"
vmcoreinfo: track and log recoverable hardware errors
kho: fix restoring of contiguous ranges of order-0 pages
kho: kho_restore_vmalloc: fix initialization of pages array
MAINTAINERS: TPM DEVICE DRIVER: update the W-tag
init: replace simple_strtoul with kstrtoul to improve lpj_setup
KHO: fix boot failure due to kmemleak access to non-PRESENT pages
Documentation/ABI: new kexec and kdump sysfs interface
Documentation/ABI: mark old kexec sysfs deprecated
kexec: move sysfs entries to /sys/kernel/kexec
test_kho: always print restore status
kho: free chunks using free_page() instead of kfree()
selftests/liveupdate: add kexec test for multiple and empty sessions
selftests/liveupdate: add simple kexec-based selftest for LUO
selftests/liveupdate: add userspace API selftests
docs: add documentation for memfd preservation via LUO
mm: memfd_luo: allow preserving memfd
liveupdate: luo_file: add private argument to store runtime state
mm: shmem: export some functions to internal.h
...
|
||
|
Linus Torvalds
|
d1d36025a6 |
Probes for v6.19
- fprobe: Performance enhancement of the fprobe using rhltable
. fprobe: use rhltable for fprobe_ip_table. The fprobe IP table has
been converted to use an rhltable for improved performance when
dealing with a large number of probed functions.
. Fix a suspicious RCU usage warning of the above change in the
fprobe entry handler.
. Remove an unused local variable of the above change.
. Fix to initialize fprobe_ip_table in core_initcall().
- fprobe: Performance optimization of fprobe by ftrace
. fprobe: Use ftrace instead of fgraph for entry only probes. This
avoids the unneeded overhead of fgraph stack setup.
. Also update fprobe selftest for entry-only probe.
. fprobe: Use ftrace only if CONFIG_DYNAMIC_FTRACE_WITH_ARGS or
WITH_REGS is defined.
- probes: Cleanup probe event subsystems.
. uprobe/eprobe: Allocate traceprobe_parse_context per probe instead
of each probe argument parsing. This reduce memory allocation/free
of temporary working memory.
. uprobes: Cleanup code using __free().
. eprobes: Cleanup code using __free().
. probes: Cleanup code using __free(trace_probe_log_clear) to clear
error log automatically.
. probes: Replace strcpy() with memcpy() in __trace_probe_log_err().
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Merge tag 'probes-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes updates from Masami Hiramatsu:
"fprobe performance enhancement using rhltable:
- use rhltable for fprobe_ip_table. The fprobe IP table has been
converted to use an rhltable for improved performance when dealing
with a large number of probed functions
- Fix a suspicious RCU usage warning of the above change in the
fprobe entry handler
- Remove an unused local variable of the above change
- Fix to initialize fprobe_ip_table in core_initcall()
Performance optimization of fprobe by ftrace:
- Use ftrace instead of fgraph for entry only probes. This avoids the
unneeded overhead of fgraph stack setup
- Also update fprobe selftest for entry-only probe
- fprobe: Use ftrace only if CONFIG_DYNAMIC_FTRACE_WITH_ARGS or
WITH_REGS is defined
Cleanup probe event subsystems:
- Allocate traceprobe_parse_context per probe instead of each probe
argument parsing. This reduce memory allocation/free of temporary
working memory
- Cleanup code using __free()
- Replace strcpy() with memcpy() in __trace_probe_log_err()"
* tag 'probes-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: fprobe: use ftrace if CONFIG_DYNAMIC_FTRACE_WITH_ARGS
lib/test_fprobe: add testcase for mixed fprobe
tracing: fprobe: optimization for entry only case
tracing: fprobe: Fix to init fprobe_ip_table earlier
tracing: fprobe: Remove unused local variable
tracing: probes: Replace strcpy() with memcpy() in __trace_probe_log_err()
tracing: fprobe: fix suspicious rcu usage in fprobe_entry
tracing: uprobe: eprobes: Allocate traceprobe_parse_context per probe
tracing: uprobes: Cleanup __trace_uprobe_create() with __free()
tracing: eprobe: Cleanup eprobe event using __free()
tracing: probes: Use __free() for trace_probe_log
tracing: fprobe: use rhltable for fprobe_ip_table
|
||
|
Linus Torvalds
|
2aa680df68 |
sound updates for 6.19-rc1
The majority of changes at this time were about ASoC with a lot of
code refactoring works. From the functionality POV, there aren't much
to see, but we have a wide range of device-specific fixes and updates.
Here are some highlights:
- Continued ASoC API clean works, spanned over many files
- Added a SoundWire SCDA generic class driver with regmap support
- Enhancements and fixes for Cirrus, Intel, Maxim and Qualcomm.
- Support for ASoC Allwinner A523, Mediatek MT8189, Qualcomm QCM2290,
QRB2210 and SM6115, SpacemiT K1, and TI TAS2568, TAS5802, TAS5806,
TAS5815, TAS5828 and TAS5830
- Usual HD-audio and USB-audio quirks and fixups
- Support for Onkyo SE-300PCIE, TASCAM IF-FW/DM MkII
Some gpiolib changes for shared GPIOs are included along with this PR
for covering ASoC drivers changes.
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Merge tag 'sound-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"The majority of changes at this time were about ASoC with a lot of
code refactoring works. From the functionality POV, there isn't much
to see, but we have a wide range of device-specific fixes and updates.
Here are some highlights:
- Continued ASoC API cleanup work, spanned over many files
- Added a SoundWire SCDA generic class driver with regmap support
- Enhancements and fixes for Cirrus, Intel, Maxim and Qualcomm.
- Support for ASoC Allwinner A523, Mediatek MT8189, Qualcomm QCM2290,
QRB2210 and SM6115, SpacemiT K1, and TI TAS2568, TAS5802, TAS5806,
TAS5815, TAS5828 and TAS5830
- Usual HD-audio and USB-audio quirks and fixups
- Support for Onkyo SE-300PCIE, TASCAM IF-FW/DM MkII
Some gpiolib changes for shared GPIOs are included along with this PR
for covering ASoC drivers changes"
* tag 'sound-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (739 commits)
ALSA: hda/realtek: Add PCI SSIDs to HP ProBook quirks
ALSA: usb-audio: Simplify with usb_endpoint_max_periodic_payload()
ALSA: hda/realtek: fix mute/micmute LEDs don't work for more HP laptops
ALSA: rawmidi: Fix inconsistent indenting warning reported by smatch
ALSA: dice: fix buffer overflow in detect_stream_formats()
ASoC: codecs: Modify awinic amplifier dsp read and write functions
ASoC: SDCA: Fixup some more Kconfig issues
ASoC: cs35l56: Log a message if firmware is missing
ASoC: nau8325: Delete a stray tab
firmware: cs_dsp: Add test cases for client_ops == NULL
firmware: cs_dsp: Don't require client to provide a struct cs_dsp_client_ops
ASoC: fsl_micfil: Set channel range control
ASoC: fsl_micfil: Add default quality for different platforms
ASoC: intel: sof_sdw: Add codec_info for cs42l45
ASoC: sdw_utils: Add cs42l45 support functions
ASoC: intel: sof_sdw: Add ability to have auxiliary devices
ASoC: sdw_utils: Move codec_name to dai info
ASoC: sdw_utils: Add codec_conf for every DAI
ASoC: SDCA: Add terminal type into input/output widget name
ASoC: SDCA: Align mute controls to ALSA expectations
...
|
||
|
Guan-Chun Wu
|
8b365c4f5b |
lib: add KUnit tests for base64 encoding/decoding
Add a KUnit test suite to validate the base64 helpers. The tests cover
both encoding and decoding, including padded and unpadded forms as defined
by RFC 4648 (standard base64), and add negative cases for malformed inputs
and padding errors.
The test suite also validates other variants (URLSAFE, IMAP) to ensure
their correctness.
In addition to functional checks, the suite includes simple
microbenchmarks which report average encode/decode latency for small (64B)
and larger (1KB) inputs. These numbers are informational only and do not
gate the tests.
Kconfig (BASE64_KUNIT) and lib/tests/Makefile are updated accordingly.
Sample KUnit output:
KTAP version 1
# Subtest: base64
# module: base64_kunit
1..4
# base64_performance_tests: [64B] encode run : 32ns
# base64_performance_tests: [64B] decode run : 35ns
# base64_performance_tests: [1KB] encode run : 510ns
# base64_performance_tests: [1KB] decode run : 530ns
ok 1 base64_performance_tests
ok 2 base64_std_encode_tests
ok 3 base64_std_decode_tests
ok 4 base64_variant_tests
# base64: pass:4 fail:0 skip:0 total:4
# Totals: pass:4 fail:0 skip:0 total:4
Link: https://lkml.kernel.org/r/20251114060157.89507-1-409411716@gms.tku.edu.tw
Signed-off-by: Guan-Chun Wu <409411716@gms.tku.edu.tw>
Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Laight <david.laight.linux@gmail.com>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Keith Busch <kbusch@kernel.org>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: "Theodore Y. Ts'o" <tytso@mit.edu>
Cc: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Cc: Xiubo Li <xiubli@redhat.com>
Cc: Yu-Sheng Huang <home7438072@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
||
|
Andy Shevchenko
|
bccd593744 |
lib/vsprintf: Add specifier for printing struct timespec64
A handful drivers want to print a content of the struct timespec64 in a format of %lld:%09ld. In order to make their lives easier, add the respecting specifier directly to the printf() implementation. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Tested-by: Petr Mladek <pmladek@suse.com> Link: https://patch.msgid.link/20251113150217.3030010-2-andriy.shevchenko@linux.intel.com Signed-off-by: Petr Mladek <pmladek@suse.com> |
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|
Bartosz Golaszewski
|
197b3f3c70 |
string: provide strends()
Implement a function for checking if a string ends with a different string and add its kunit test cases. Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20251112-gpio-shared-v4-1-b51f97b1abd8@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> |
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|
Menglong Dong
|
08ed5c81f6 |
lib/test_fprobe: add testcase for mixed fprobe
Add the testcase for the fprobe, which will hook the same target with two fprobe: entry, entry+exit. And the two fprobes will be registered with different order. fgraph and ftrace are both used for the fprobe, and this testcase is for the mixed situation. Link: https://lore.kernel.org/all/20251015083238.2374294-3-dongml2@chinatelecom.cn/ Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> |
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|
Kees Cook
|
95719dfa32 |
KUnit: ffs: Validate all the __attribute_const__ annotations
While tracking down a problem where constant expressions used by BUILD_BUG_ON() suddenly stopped working[1], we found that an added static initializer was convincing the compiler that it couldn't track the state of the prior statically initialized value. Tracing this down found that ffs() was used in the initializer macro, but since it wasn't marked with __attribute_const__, the compiler had to assume the function might change variable states as a side-effect (which is not true for ffs(), which provides deterministic math results). Validate all the __attibute_const__ annotations were found for all architectures by reproducing the specific problem encountered in the original bug report. Build and run tested with everything I could reach with KUnit: $ ./tools/testing/kunit/kunit.py run --arch=x86_64 ffs $ ./tools/testing/kunit/kunit.py run --arch=i386 ffs $ ./tools/testing/kunit/kunit.py run --arch=arm64 --make_options "CROSS_COMPILE=aarch64-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=arm --make_options "CROSS_COMPILE=arm-linux-gnueabi-" ffs $ ./tools/testing/kunit/kunit.py run --arch=powerpc ffs $ ./tools/testing/kunit/kunit.py run --arch=powerpc32 ffs $ ./tools/testing/kunit/kunit.py run --arch=powerpcle ffs $ ./tools/testing/kunit/kunit.py run --arch=m68k ffs $ ./tools/testing/kunit/kunit.py run --arch=loongarch ffs $ ./tools/testing/kunit/kunit.py run --arch=s390 --make_options "CROSS_COMPILE=s390x-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=riscv --make_options "CROSS_COMPILE=riscv64-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=riscv32 --make_options "CROSS_COMPILE=riscv64-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=sparc --make_options "CROSS_COMPILE=sparc64-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=sparc64 --make_options "CROSS_COMPILE=sparc64-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=alpha --make_options "CROSS_COMPILE=alpha-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=sh --make_options "CROSS_COMPILE=sh4-linux-gnu-" ffs Closes: https://github.com/KSPP/linux/issues/364 Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250804164417.1612371-17-kees@kernel.org Signed-off-by: Kees Cook <kees@kernel.org> |
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Kees Cook
|
b3a7bb71bf |
KUnit: Introduce ffs()-family tests
Add KUnit tests for ffs()-family bit scanning functions: ffs(), __ffs(), fls(), __fls(), fls64(), __ffs64(), and ffz(). The tests validate mathematical relationships (e.g. ffs(x) == __ffs(x) + 1), and test zero values, power-of-2 patterns, maximum values, and sparse bit patterns. Build and run tested with everything I could reach with KUnit: $ ./tools/testing/kunit/kunit.py run --arch=x86_64 ffs $ ./tools/testing/kunit/kunit.py run --arch=i386 ffs $ ./tools/testing/kunit/kunit.py run --arch=arm64 --make_options "CROSS_COMPILE=aarch64-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=arm --make_options "CROSS_COMPILE=arm-linux-gnueabihf-" ffs $ ./tools/testing/kunit/kunit.py run --arch=powerpc ffs $ ./tools/testing/kunit/kunit.py run --arch=powerpc32 ffs $ ./tools/testing/kunit/kunit.py run --arch=powerpcle ffs $ ./tools/testing/kunit/kunit.py run --arch=riscv --make_options "CROSS_COMPILE=riscv64-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=riscv32 --make_options "CROSS_COMPILE=riscv64-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=s390 --make_options "CROSS_COMPILE=s390x-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=m68k ffs $ ./tools/testing/kunit/kunit.py run --arch=loongarch ffs $ ./tools/testing/kunit/kunit.py run --arch=mips --make_options "CROSS_COMPILE=mipsel-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=sparc --make_options "CROSS_COMPILE=sparc64-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=sparc64 --make_options "CROSS_COMPILE=sparc64-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=alpha --make_options "CROSS_COMPILE=alpha-linux-gnu-" ffs $ ./tools/testing/kunit/kunit.py run --arch=sh --make_options "CROSS_COMPILE=sh4-linux-gnu-" ffs Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250804164417.1612371-1-kees@kernel.org Signed-off-by: Kees Cook <kees@kernel.org> |
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|
Linus Torvalds
|
f2d282e1df |
bitmap-for-6.17
Bits-related patched for 6.17: - find_random_bit() series (Yury); - GENMASK() consolidation (Vincent); - random cleanups (Shaopeng, Ben, Yury) -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEEi8GdvG6xMhdgpu/4sUSA/TofvsgFAmiLkz0ACgkQsUSA/Tof vsj7MgwAvRSyevYSm9cm1Y99098M/7gWeJUeLAIy0GJdFaBQIcMkXkRGXJ9A0ZHb RoCFG4eiukHIDHRzJjncXUNTk0zVCbEifUF43BdnJrhjTePlou5SNVh6xhJfQ1Ai ENB4Q+nAZyIm43cUnoDhR24ne3pgJcY+oe6e7sQTRFF/6+nB4RDHmjIAMVsYgH30 w8iPBxNXXULAZNDgOPA3J5bACEnZPfOAhtoiNBC9s4MsE4o+Q8E9FVhReI2tiIhk t98kVZu7TFyrGcCdLz8EgbcG4KPFBmwOwOv8S1Mzgy46MwS//dd7MZA7y3MqTvJ/ VEMoTMAK14/VrgDxu/vdBsUJt/T1wPc+ZbUt/rNb530oSDkvjIo+4ihg1nfswqhn u+fj65wAHRW7CSkgpHn3bM/wvxmtIaE6AoY6jWwyuZ1zGIEV+5iPBo56kkmpJlYj GlnbiTHkNR/jGa1GwB3PDG2kzoqXVLz6EeFdZncUX53MGa90g0+5/k0ld+oBJTDh 7QbkZlW1 =uj9U -----END PGP SIGNATURE----- Merge tag 'bitmap-for-6.17' of https://github.com/norov/linux Pull bitmap updates from Yury Norov: - find_random_bit() series (Yury) - GENMASK() consolidation (Vincent) - random cleanups (Shaopeng, Ben, Yury) * tag 'bitmap-for-6.17' of https://github.com/norov/linux: bitfield: Ensure the return values of helper functions are checked test_bits: add tests for __GENMASK() and __GENMASK_ULL() bits: unify the non-asm GENMASK*() bits: split the definition of the asm and non-asm GENMASK*() cpumask: Remove unnecessary cpumask_nth_andnot() watchdog: fix opencoded cpumask_next_wrap() in watchdog_next_cpu() clocksource: Improve randomness in clocksource_verify_choose_cpus() cpumask: introduce cpumask_random() bitmap: generalize node_random() |
||
|
Vincent Mailhol
|
dcb23e1878 |
test_bits: add tests for __GENMASK() and __GENMASK_ULL()
The definitions of GENMASK() and GENMASK_ULL() do not depend any more
on __GENMASK() and __GENMASK_ULL(). Duplicate the existing unit tests
so that __GENMASK{,ULL}() are still covered.
Because __GENMASK() and __GENMASK_ULL() do use GENMASK_INPUT_CHECK(),
drop the TEST_GENMASK_FAILURES negative tests.
It would be good to have a small assembly test case for GENMASK*() in
case somebody decides to unify both in the future. However, I lack
expertise in assembly to do so. Instead add a FIXME message to
highlight the absence of the asm unit test.
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
|
||
|
Linus Torvalds
|
0561bd5692 |
lib/ratelimit: Add functional and stress tests
Changes ------- * Add trivial kunit test for ratelimit * Make the ratelimit test more reliable (Petr Mladek) * Add stress test for ratelimit -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEbK7UrM+RBIrCoViJnr8S83LZ+4wFAmiBbmkTHHBhdWxtY2tA a2VybmVsLm9yZwAKCRCevxLzctn7jGDHD/wLrUvsUk494xhGudBd+uSy4JPtC3TZ s53I/IwUwmWUzPFW3kCwwDmq6LDVRg2I7kPh/6uAniMsOXF2watNrGloDu3ZJfqP Z3H5pXQDHi8Y/vzU/S/jUIjGqw9Zaop/3zVcNBdYH593Vnie8QTn6+SFtgBW93+J c0ScaazRrBBri8n/S5dC0wcjebQQjOeThGhOOeKIQHWauqNhLwqoRGKyNGNHVfux 2jQIRThv1vcVpjMQo5D3g6prZpI6XBQ3D3EkHOHjGChW6G89EEvtdUghlB56SG2d mK7CPUd7zI/QI/33p4wsbqffZUO5j0Tveoir8/Xw69YYpP1HVAU8g6B5Y6eqs7Gv 4s8r9XgCmwFDrl33Gkgm7JBPOqixTu3zk+MBAAeo8MKrox1hamms6pBI0KWUf9QW UOGEW4GfPc4VS7WRF9/JCTMpBZ9tBB7eTBYMy4hfrHBhsMKXfy7xHwK139PUu/JS W6O8BQnBfJ+ZOSq5oJpeV/hiyVrk/0nQfqjzMfA8zyF5IlGC8x5MiYXsFn61VJw2 k8WmfF//pU6O3NDwfJLmv2Oi5NY/0QuI597TxGm/Cw0Ns/qtTtQ/BEZZsQ0V2fxg bJoFRrxOBI3fw9UPzW5LGfNUcMG5VsxuQTgRglrul9+WQIsDkZqyRQD+FP2T7hfr IcXU+V5M4nryYw== =DDJ8 -----END PGP SIGNATURE----- Merge tag 'ratelimit.2025.07.23a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull ratelimit test updates from Paul McKenney: "Add functional and stress tests: - Add trivial kunit test for ratelimit - Make the ratelimit test more reliable (Petr Mladek) - Add stress test for ratelimit" * tag 'ratelimit.2025.07.23a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: lib: Add stress test for ratelimit lib: Make the ratelimit test more reliable lib: Add trivial kunit test for ratelimit |
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|
Linus Torvalds
|
6f46e6fb4e |
linux_kselftest-kunit-6.17-rc1
Corrects MODULE_IMPORT_NS() syntax documentation, makes kunit_test timeout
configurable via a module parameter and a Kconfig option, fixes longest
symbol length test, adds a test for static stub, and adjusts kunit_test
timeout based on test_{suite,case} speed.
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Merge tag 'linux_kselftest-kunit-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kunit updates from Shuah Khan:
"Correct MODULE_IMPORT_NS() syntax documentation, make kunit_test
timeout configurable via a module parameter and a Kconfig option, fix
longest symbol length test, add a test for static stub, and adjust
kunit_test timeout based on test_{suite,case} speed"
* tag 'linux_kselftest-kunit-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: fix longest symbol length test
kunit: Make default kunit_test timeout configurable via both a module parameter and a Kconfig option
kunit: Adjust kunit_test timeout based on test_{suite,case} speed
kunit: Add test for static stub
Documentation: kunit: Correct MODULE_IMPORT_NS() syntax
|
||
|
Linus Torvalds
|
a578dd095d |
CRC updates for 6.17
Updates for the kernel's CRC (cyclic redundancy check) code:
- Reorganize the architecture-optimized CRC code. It now lives in
lib/crc/$(SRCARCH)/ rather than arch/$(SRCARCH)/lib/, and it is no
longer artificially split into separate generic and arch modules.
This allows better inlining and dead code elimination. The generic
CRC code is also no longer exported, simplifying the API. (This
mirrors the similar changes to SHA-1 and SHA-2 in lib/crypto/,
which can be found in the "Crypto library updates" pull request.)
- Improve crc32c() performance on newer x86_64 CPUs on long messages
by enabling the VPCLMULQDQ optimized code.
- Simplify the crypto_shash wrappers for crc32_le() and crc32c().
Register just one shash algorithm for each that uses the (fully
optimized) library functions, instead of unnecessarily providing
direct access to the generic CRC code.
- Remove unused and obsolete drivers for hardware CRC engines.
- Remove CRC-32 combination functions that are no longer used.
- Add kerneldoc for crc32_le(), crc32_be(), and crc32c().
- Convert the crc32() macro to an inline function.
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Merge tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull CRC updates from Eric Biggers:
- Reorganize the architecture-optimized CRC code
It now lives in lib/crc/$(SRCARCH)/ rather than arch/$(SRCARCH)/lib/,
and it is no longer artificially split into separate generic and arch
modules. This allows better inlining and dead code elimination
The generic CRC code is also no longer exported, simplifying the API.
(This mirrors the similar changes to SHA-1 and SHA-2 in lib/crypto/,
which can be found in the "Crypto library updates" pull request)
- Improve crc32c() performance on newer x86_64 CPUs on long messages by
enabling the VPCLMULQDQ optimized code
- Simplify the crypto_shash wrappers for crc32_le() and crc32c()
Register just one shash algorithm for each that uses the (fully
optimized) library functions, instead of unnecessarily providing
direct access to the generic CRC code
- Remove unused and obsolete drivers for hardware CRC engines
- Remove CRC-32 combination functions that are no longer used
- Add kerneldoc for crc32_le(), crc32_be(), and crc32c()
- Convert the crc32() macro to an inline function
* tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (26 commits)
lib/crc: x86/crc32c: Enable VPCLMULQDQ optimization where beneficial
lib/crc: x86: Reorganize crc-pclmul static_call initialization
lib/crc: crc64: Add include/linux/crc64.h to kernel-api.rst
lib/crc: crc32: Change crc32() from macro to inline function and remove cast
nvmem: layouts: Switch from crc32() to crc32_le()
lib/crc: crc32: Document crc32_le(), crc32_be(), and crc32c()
lib/crc: Explicitly include <linux/export.h>
lib/crc: Remove ARCH_HAS_* kconfig symbols
lib/crc: x86: Migrate optimized CRC code into lib/crc/
lib/crc: sparc: Migrate optimized CRC code into lib/crc/
lib/crc: s390: Migrate optimized CRC code into lib/crc/
lib/crc: riscv: Migrate optimized CRC code into lib/crc/
lib/crc: powerpc: Migrate optimized CRC code into lib/crc/
lib/crc: mips: Migrate optimized CRC code into lib/crc/
lib/crc: loongarch: Migrate optimized CRC code into lib/crc/
lib/crc: arm64: Migrate optimized CRC code into lib/crc/
lib/crc: arm: Migrate optimized CRC code into lib/crc/
lib/crc: Prepare for arch-optimized code in subdirs of lib/crc/
lib/crc: Move files into lib/crc/
lib/crc32: Remove unused combination support
...
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Kees Cook
|
fc07839203 |
seq_buf: Introduce KUnit tests
Add KUnit tests for the seq_buf API to ensure its correctness and prevent future regressions, covering the following functions: - seq_buf_init() - DECLARE_SEQ_BUF() - seq_buf_clear() - seq_buf_puts() - seq_buf_putc() - seq_buf_printf() - seq_buf_get_buf() - seq_buf_commit() $ tools/testing/kunit/kunit.py run seq_buf =================== seq_buf (9 subtests) =================== [PASSED] seq_buf_init_test [PASSED] seq_buf_declare_test [PASSED] seq_buf_clear_test [PASSED] seq_buf_puts_test [PASSED] seq_buf_puts_overflow_test [PASSED] seq_buf_putc_test [PASSED] seq_buf_printf_test [PASSED] seq_buf_printf_overflow_test [PASSED] seq_buf_get_buf_commit_test ===================== [PASSED] seq_buf ===================== Link: https://lore.kernel.org/r/20250717085156.work.363-kees@kernel.org Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Kees Cook <kees@kernel.org> |
||
|
Kees Cook
|
10299c07c9 |
kunit/fortify: Add back "volatile" for sizeof() constants
It seems the Clang can see through OPTIMIZER_HIDE_VAR when the constant
is coming from sizeof. Adding "volatile" back to these variables solves
this false positive without reintroducing the issues that originally led
to switching to OPTIMIZER_HIDE_VAR in the first place[1].
Reported-by: Nathan Chancellor <nathan@kernel.org>
Closes: https://github.com/ClangBuiltLinux/linux/issues/2075 [1]
Cc: Jannik Glückert <jannik.glueckert@gmail.com>
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Fixes:
|
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|
Sergio González Collado
|
34db4fba81 |
kunit: fix longest symbol length test
The kunit test that checks the longests symbol length [1], has triggered warnings in some pilelines when symbol prefixes are used [2][3]. The test will to depend on !PREFIX_SYMBOLS and !CFI_CLANG as sujested in [4] and on !GCOV_KERNEL. [1] https://lore.kernel.org/rust-for-linux/CABVgOSm=5Q0fM6neBhxSbOUHBgNzmwf2V22vsYC10YRBT=kN1g@mail.gmail.com/T/#t [2] https://lore.kernel.org/all/20250328112156.2614513-1-arnd@kernel.org/T/#u [3] https://lore.kernel.org/rust-for-linux/bbd03b37-c4d9-4a92-9be2-75aaf8c19815@infradead.org/T/#t [4] https://lore.kernel.org/linux-kselftest/20250427200916.GA1661412@ax162/T/#t Link: https://lore.kernel.org/r/20250706201855.232451-1-sergio.collado@gmail.com Reviewed-by: Rae Moar <rmoar@google.com> Signed-off-by: Sergio González Collado <sergio.collado@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |