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2025-07-06selftests/nolibc: correctly report errors from printf() and friendsThomas Weißschuh
When an error is encountered by printf() it needs to be reported. errno() is already set by the callback. sprintf() is different, but that keeps working and is already tested. Also add a new test. Fixes: 7e4346f4a3a6 ("tools/nolibc/stdio: add a minimal [vf]printf() implementation") Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Acked-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/r/20250704-nolibc-printf-error-v1-2-74b7a092433b@linutronix.de Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-07-06selftests/nolibc: create /dev/full when running as PID 1Thomas Weißschuh
An upcoming testcase will use /dev/full. Make sure it is always present. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Acked-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/r/20250704-nolibc-printf-error-v1-1-74b7a092433b@linutronix.de Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-07-06tools/nolibc: add support for clock_nanosleep() and nanosleep()Thomas Weißschuh
Also add some tests. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Acked-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/r/20250704-nolibc-nanosleep-v1-1-d79c19701952@linutronix.de Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-07-06selftests/futex: Add futex_numa to .gitignoreTerry Tritton
futex_numa was never added to the .gitignore file. Add it. Fixes: 9140f57c1c13 ("futex,selftests: Add another FUTEX2_NUMA selftest") Signed-off-by: Terry Tritton <terry.tritton@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: André Almeida <andrealmeid@igalia.com> Link: https://lore.kernel.org/all/20250704103749.10341-1-terry.tritton@linaro.org
2025-07-04cxl/test: Simplify fw_buf_checksum_show()Eric Biggers
First, just use sha256() instead of a sequence of sha256_init(), sha256_update(), and sha256_final(). The result is the same. Second, use *phN instead of open-coding the conversion of bytes to hex. Acked-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20250630160645.3198-3-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>
2025-07-04Merge tag 'vfs-6.16-rc5.fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs fixes from Christian Brauner: - Fix a regression caused by the anonymous inode rework. Making them regular files causes various places in the kernel to tip over starting with io_uring. Revert to the former status quo and port our assertion to be based on checking the inode so we don't lose the valuable VFS_*_ON_*() assertions that have already helped discover weird behavior our outright bugs. - Fix the the upper bound calculation in fuse_fill_write_pages() - Fix priority inversion issues in the eventpoll code - Make secretmen use anon_inode_make_secure_inode() to avoid bypassing the LSM layer - Fix a netfs hang due to missing case in final DIO read result collection - Fix a double put of the netfs_io_request struct - Provide some helpers to abstract out NETFS_RREQ_IN_PROGRESS flag wrangling - Fix infinite looping in netfs_wait_for_pause/request() - Fix a netfs ref leak on an extra subrequest inserted into a request's list of subreqs - Fix various cifs RPC callbacks to set NETFS_SREQ_NEED_RETRY if a subrequest fails retriably - Fix a cifs warning in the workqueue code when reconnecting a channel - Fix the updating of i_size in netfs to avoid a race between testing if we should have extended the file with a DIO write and changing i_size - Merge the places in netfs that update i_size on write - Fix coredump socket selftests * tag 'vfs-6.16-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: anon_inode: rework assertions netfs: Update tracepoints in a number of ways netfs: Renumber the NETFS_RREQ_* flags to make traces easier to read netfs: Merge i_size update functions netfs: Fix i_size updating smb: client: set missing retry flag in cifs_writev_callback() smb: client: set missing retry flag in cifs_readv_callback() smb: client: set missing retry flag in smb2_writev_callback() netfs: Fix ref leak on inserted extra subreq in write retry netfs: Fix looping in wait functions netfs: Provide helpers to perform NETFS_RREQ_IN_PROGRESS flag wangling netfs: Fix double put of request netfs: Fix hang due to missing case in final DIO read result collection eventpoll: Fix priority inversion problem fuse: fix fuse_fill_write_pages() upper bound calculation fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass selftests/coredump: Fix "socket_detect_userspace_client" test failure
2025-07-04kselftest/arm64: Add a test for vfork() with GCSMark Brown
Ensure that we've got at least some coverage of the special cases around vfork() by adding a test case in basic-gcs doing the same thing as the plain fork() one - vfork(), do a few checks and then return to the parent. Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/20250703-arm64-gcs-vfork-exit-v3-3-1e9a9d2ddbbe@kernel.org Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-07-04selftests/nolibc: Add coverage of vfork()Mark Brown
Generalise the existing fork() test to also cover the newly added vfork() implementation. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250703-arm64-gcs-vfork-exit-v3-4-1e9a9d2ddbbe@kernel.org Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-07-04tools/nolibc: Provide vfork()Mark Brown
To allow testing of vfork() support in the arm64 basic-gcs test provide an implementation for nolibc, using the vfork() syscall if one is available and otherwise clone3(). We implement in terms of clone3() since the order of the arguments for clone() varies between architectures. As for fork() SPARC returns the parent PID rather than 0 in the child for vfork() so needs custom handling. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250703-arm64-gcs-vfork-exit-v3-2-1e9a9d2ddbbe@kernel.org Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-07-04tools/nolibc: Replace ifdef with if defined() in sys.hMark Brown
Thomas has requested that if defined() be used in place of ifdef but currently ifdef is used consistently in sys.h. Update all the instances of ifdef to if defined(). Suggested-by: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250703-arm64-gcs-vfork-exit-v3-1-1e9a9d2ddbbe@kernel.org Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-07-04tools/nolibc: add support for SuperHThomas Weißschuh
Add support for SuperH/"sh" to nolibc. Only sh4 is tested for now. The startup code is special: __nolibc_entrypoint_epilogue() calls __builtin_unreachable() which emits a call to abort(). To make this work a function prologue is generated to set up a GOT pointer which corrupts "sp". __builtin_unreachable() is necessary for __attribute__((noreturn)). Also depending on compiler flags (for example -fPIC) even more prologue is generated. Work around this by defining a nested function in asm. Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70216 Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Acked-by: Willy Tarreau <w@1wt.eu> Acked-by: Rob Landley <rob@landley.net> Acked-by: D. Jeff Dionne <jeff@coresemi.io> Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/20250623-nolibc-sh-v2-3-0f5b4b303025@weissschuh.net
2025-07-04selftests: net: extend SCM_PIDFD test to cover stale pidfdsAlexander Mikhalitsyn
Extend SCM_PIDFD test scenarios to also cover dead task's pidfd retrieval and reading its exit info. Cc: linux-kselftest@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org Cc: Shuah Khan <shuah@kernel.org> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Simon Horman <horms@kernel.org> Cc: Christian Brauner <brauner@kernel.org> Cc: Kuniyuki Iwashima <kuniyu@google.com> Cc: Lennart Poettering <mzxreary@0pointer.de> Cc: Luca Boccassi <bluca@debian.org> Cc: David Rheinsberg <david@readahead.eu> Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Link: https://lore.kernel.org/20250703222314.309967-8-aleksandr.mikhalitsyn@canonical.com Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-07-03selftests/nolibc: use file driver for QEMU serialThomas Weißschuh
For the test implementation of the SuperH architecture a second serial serial port needs to be used. Unfortunately the currently used 'stdio' driver does not support multiple serial ports at the same time. Switch to the 'file' driver which does support multiple ports and is sufficient for the nolibc-test usecase. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Acked-by: Willy Tarreau <w@1wt.eu> Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/20250623-nolibc-sh-v2-2-0f5b4b303025@weissschuh.net
2025-07-03selftests/nolibc: fix EXTRACONFIG variables orderingThomas Weißschuh
The variable block got disordered at some point. Use the correct ordering. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Acked-by: Willy Tarreau <w@1wt.eu> Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/20250623-nolibc-sh-v2-1-0f5b4b303025@weissschuh.net
2025-07-03KVM: selftests: Change MDSCR_EL1 register holding variables as uint64_tAnshuman Khandual
Change MDSCR_EL1 register holding local variables as uint64_t that reflects its true register width as well. Cc: Oliver Upton <oliver.upton@linux.dev> Cc: Joey Gouly <joey.gouly@arm.com> Cc: kvm@vger.kernel.org Cc: kvmarm@lists.linux.dev Cc: linux-kernel@vger.kernel.org Cc: linux-kselftest@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Acked-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Ada Couprie Diaz <ada.coupriediaz@arm.com> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Link: https://lore.kernel.org/r/20250613023646.1215700-3-anshuman.khandual@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-03selftests/sched_ext: Fix exit selftest hang on UPAndrea Righi
On single-CPU systems, ops.select_cpu() is never called, causing the EXIT_SELECT_CPU test case to wait indefinitely. Avoid the stall by skipping this specific sub-test when only one CPU is available. Reported-by: Phil Auld <pauld@redhat.com> Fixes: a5db7817af780 ("sched_ext: Add selftests") Signed-off-by: Andrea Righi <arighi@nvidia.com> Reviewed-by: Phil Auld <pauld@redhat.com> Tested-by: Phil Auld <pauld@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2025-07-03kselftest/arm64: Specify SVE data when testing VL set in sve-ptraceMark Brown
Since f916dd32a943 ("arm64/fpsimd: ptrace: Mandate SVE payload for streaming-mode state") we reject attempts to write to the streaming mode regset even if there is no register data supplied, causing the tests for setting vector lengths and setting SVE_VL_INHERIT in sve-ptrace to spuriously fail. Set the flag to avoid the issue, we still support not supplying register data. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250609-kselftest-arm64-ssve-fixups-v2-3-998fcfa6f240@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-03kselftest/arm64: Fix test for streaming FPSIMD write in sve-ptraceMark Brown
Since f916dd32a943 ("arm64/fpsimd: ptrace: Mandate SVE payload for streaming-mode state") we do not support writing FPSIMD payload data when writing NT_ARM_SSVE but the sve-ptrace test has an explicit test for this being supported which was not updated to reflect the new behaviour. Fix the test to expect a failure when writing FPSIMD data to the streaming mode register set. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250609-kselftest-arm64-ssve-fixups-v2-2-998fcfa6f240@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-03kselftest/arm64: Fix check for setting new VLs in sve-ptraceMark Brown
The check that the new vector length we set was the expected one was typoed to an assignment statement which for some reason the compilers didn't spot, most likely due to the macros involved. Fixes: a1d7111257cd ("selftests: arm64: More comprehensively test the SVE ptrace interface") Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Dev Jain <dev.jain@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250609-kselftest-arm64-ssve-fixups-v2-1-998fcfa6f240@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-03kselftest/arm64: Convert tpidr2 test to use kselftest.hMark Brown
Recent work by Thomas Weißschuh means that it is now possible to use kselftest.h with nolibc. Convert the tpidr2 test which is nolibc specific to use kselftest.h, making it look more standard and ensuring it gets the benefit of any work done on kselftest.h. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250609-kselftest-arm64-nolibc-header-v1-1-16ee1c6fbfed@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Add MTE_STORE_ONLY testcasesYeoreum Yun
Since ARMv8.9, FEAT_MTE_STORE_ONLY can be used to restrict raise of tag check fault on store operation only. Adds new test cases using MTE_STORE_ONLY feature. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618092957.2069907-9-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Preparation for mte store only testYeoreum Yun
Since ARMv8.9, FEAT_MTE_STORE_ONLY can be used to restrict raise of tag check fault on store operation only. This patch is preparation for testing FEAT_MTE_STORE_ONLY It shouldn't change test result. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618092957.2069907-8-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/abi: Add MTE_STORE_ONLY feature hwcap testYeoreum Yun
add MTE_STORE_ONLY feature hwcap test. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618092957.2069907-7-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Add mtefar tests on check_mmap_optionsYeoreum Yun
If FEAT_MTE_TAGGED_FAR (Armv8.9) is supported, bits 63:60 of the fault address are preserved in response to synchronous tag check faults (SEGV_MTESERR). This patch adds new test cases using address tags (bits 63:60), corresponding to each existing test in check_mmap_option. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-11-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Refactor check_mmap_option testYeoreum Yun
Before add mtefar testcase on check_mmap_option.c, refactor check_mmap_option: - make testcase suite array with test options (mem_type, mte_sync type and etc) to use general testcase pattern - generate each test case name acoording to test options. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-10-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Add verification for address tag in signal handlerYeoreum Yun
Add the address tag [63:60] verification when synchronous mte fault is happen. when signal handler is registered with SA_EXPOSE_TAGBITS, address includes not only memory tag [59:56] but also address tag. Therefore, when verify fault address location, remove both tags Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-9-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Add address tag related macro and functionYeoreum Yun
Add address tag related macro and function to test MTE_FAR feature. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-8-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Check MTE_FAR feature is supportedYeoreum Yun
To run the MTE_FAR test when cpu supports MTE_FAR feature, check the MTE_FAR feature is supported in mte test. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-7-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Register mte signal handler with SA_EXPOSE_TAGBITSYeoreum Yun
To test address tag[63:60] and memory tag[59:56] is preserved when memory tag fault happen, Let mte_register_signal() to register signal handler with SA_EXPOSE_TAGBITS. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-6-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64: Add MTE_FAR hwcap testYeoreum Yun
add MTE_FAR hwcap test on kselftest. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-5-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02Merge tag 'for-linus-iommufd' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd Pull iommufd fixes from Jason Gunthorpe: "Some changes to the userspace selftest framework cause the iommufd tests to start failing. This turned out to be bugs in the iommufd side that were just getting uncovered. - Deal with MAP_HUGETLB mmaping more than requested even when in MAP_FIXED mode - Fixup missing error flow cleanup in the test - Check that the memory allocations suceeded - Suppress some bogus gcc 'may be used uninitialized' warnings" * tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: iommufd/selftest: Fix build warnings due to uninitialized mfd iommufd/selftest: Add asserts testing global mfd iommufd/selftest: Add missing close(mfd) in memfd_mmap() iommufd/selftest: Fix iommufd_dirty_tracking with large hugepage sizes
2025-07-02selftests/kernfs: test xattr retrievalChristian Brauner
Make sure that listxattr() returns zero and that getxattr() returns ENODATA when no extended attributs are set. Use /sys/kernel/warn_count as that always exists and is a read-only file. Link: https://lore.kernel.org/20250702-hochmoderne-abklatsch-af9c605b57b2@brauner Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-07-02selftests/bpf: Add tests for bpf_cgroup_read_xattrSong Liu
Add tests for different scenarios with bpf_cgroup_read_xattr: 1. Read cgroup xattr from bpf_cgroup_from_id; 2. Read cgroup xattr from bpf_cgroup_ancestor; 3. Read cgroup xattr from css_iter; 4. Use bpf_cgroup_read_xattr in LSM hook security_socket_connect. 5. Use bpf_cgroup_read_xattr in cgroup program. Signed-off-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/20250623063854.1896364-5-song@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-07-01selftests/bpf: Add negative test cases for snprintfPaul Chaignon
This patch adds a couple negative test cases with a trailing % at the end of the format string. The %p% case was fixed by the previous commit, whereas the %s% case was already successfully rejected before. Acked-by: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com> Link: https://lore.kernel.org/r/0669bf6eb4f9e5bb10e949d60311c06e2d942447.1751395489.git.paul.chaignon@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-01cpupower: Improve Python binding's MakefileJohn B. Wyatt IV
Add a few build variables to make it easier for distributions to package the bindings. Allow current variables to be overwritten by environment variables that are passed to make. CCing Thorsten Leemhuis <linux@leemhuis.info>. https://lore.kernel.org/r/20250624204105.457971-1-jwyatt@redhat.com Signed-off-by: John B. Wyatt IV <jwyatt@redhat.com> Signed-off-by: John B. Wyatt IV <sageofredondo@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-07-01selftests: vDSO: vdso_standalone_test_x86: Replace source file with symlinkThomas Weißschuh
With the switch over to nolibc the source file vdso_standalone_test_x86.c was intended to be replaced with a symlink to vdso_test_gettimeofday.c. This was the patch that was submitted to LKML, but during application the symlink was replaced by a textual copy of the linked-to file. Having two copies introduces the possibility of divergence and increases maintenance burden, switch back to a symlink. Fixes: 8770a9183fe1 ("selftests: vDSO: vdso_standalone_test_x86: Switch to nolibc") Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/lkml/20250226-parse_vdso-nolibc-v2-16-28e14e031ed8@linutronix.de/ Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-9-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: vdso_test_getrandom: Always print TAP headerThomas Weißschuh
The TAP specification requires that the output begins with a header line. If vgetrandom_init() fails and skips the test, that header line is missing. Call vgetrandom_init() after ksft_print_header(). Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-8-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: vdso_test_correctness: Fix -Wstrict-prototypesThomas Weißschuh
Functions definitions without any argument list produce a warning with -Wstrict-prototypes: vdso_test_correctness.c:111:13: warning: function declaration isn’t a prototype [-Wstrict-prototypes] 111 | static void fill_function_pointers() | ^~~~~~~~~~~~~~~~~~~~~~ Explicitly use an empty argument list. Now that all selftests a free of this warning, enable it in the Makefile. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-7-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: Enable -WallThomas Weißschuh
Protect against common programming errors through compiler warnings. These warnings are also used for the kernel itself. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-6-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: vdso_config: Avoid -Wunused-variablesThomas Weißschuh
Not all users of this header make use of all its variables. For example vdso_test_correctness.c does not use "versions": In file included from vdso_test_correctness.c:22: vdso_config.h:61:20: warning: ‘versions’ defined but not used [-Wunused-variable] 61 | static const char *versions[7] = { | ^~~~~~~~ Avoid those warnings through attribute((unused)). Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-5-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: vdso_test_getrandom: Avoid -WunusedThomas Weißschuh
vgetrandom_put_state() and the variable "ret" in kselftest() are unused. Drop the variable "ret". Suppress the warning for vgetrandom_put_state() as it is meant as an example for libc implementors. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-4-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: vdso_test_getrandom: Drop unused include of linux/compiler.hThomas Weißschuh
The header is unused. Furthermore this is not a real UAPI header, but only exists in tools/include/. This prevents building the selftest against real UAPI headers. Drop the include. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-3-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: clock_getres: Drop unused include of err.hThomas Weißschuh
Nothing from err.h is used. Drop the include. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-2-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: chacha: Correctly skip test if necessaryThomas Weißschuh
According to kselftest.h ksft_exit_skip() is not meant to be called when a plan has already been printed. Use the recommended function ksft_test_result_skip(). This fixes a bug, where the TAP output would be invalid when skipping: TAP version 13 1..1 ok 2 # SKIP Not implemented on architecture The SKIP line should start with "ok 1" as the plan only contains one test. Fixes: 3b5992eaf730 ("selftests: vDSO: unconditionally build chacha test") Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-1-e62e37a6bcf5@linutronix.de
2025-07-01objtool: Add missing endian conversion to read_annotate()Heiko Carstens
Trying to compile an x86 kernel on big endian results in this error: net/ipv4/netfilter/iptable_nat.o: warning: objtool: iptable_nat_table_init+0x150: Unknown annotation type: 50331648 make[5]: *** [scripts/Makefile.build:287: net/ipv4/netfilter/iptable_nat.o] Error 255 Reason is a missing endian conversion in read_annotate(). Add the missing conversion to fix this. Fixes: 2116b349e29a ("objtool: Generic annotation infrastructure") Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20250630131230.4130185-1-hca@linux.ibm.com
2025-06-28tools/nolibc: MIPS: add support for N64 and N32 ABIsThomas Weißschuh
Add support for the MIPS 64bit N64 and ILP32 N32 ABIs. In addition to different byte orders and ABIs there are also different releases of the MIPS architecture. To avoid blowing up the test matrix, only add a subset of all possible test combinations. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Tested-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Link: https://lore.kernel.org/r/20250623-nolibc-mips-n32-v3-4-6ae2d89f4259@weissschuh.net
2025-06-28tools/nolibc: MIPS: drop noreorder optionThomas Weißschuh
There are no more statements in the assembly code which would require the usage of ".set noreorder". Remove the option. This also allows removal of the manual "nop" instruction in the delay slot. Suggested-by: Maciej W. Rozycki <macro@orcam.me.uk> Link: https://lore.kernel.org/lkml/alpine.DEB.2.21.2502172208570.65342@angie.orcam.me.uk/ Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Tested-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Link: https://lore.kernel.org/r/20250623-nolibc-mips-n32-v3-3-6ae2d89f4259@weissschuh.net
2025-06-28tools/nolibc: MIPS: drop manual stack pointer alignmentThomas Weißschuh
The stack pointer is already aligned by the kernel to a multiple of 16. All modifications of the register have been removed from the entrypoint, so the manual realignment is unnecessary. Drop the manual alignment. Suggested-by: Maciej W. Rozycki <macro@orcam.me.uk> Link: https://lore.kernel.org/lkml/alpine.DEB.2.21.2502161523290.65342@angie.orcam.me.uk/ Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Tested-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Link: https://lore.kernel.org/r/20250623-nolibc-mips-n32-v3-2-6ae2d89f4259@weissschuh.net
2025-06-28tools/nolibc: MIPS: drop $gp setupThomas Weißschuh
The setup of the global pointer "$gp" register was necessary when the C entrypoint was called through "jal <symbol>". However since commit 0daf8c86a451 ("tools/nolibc: mips: load current function to $t9") "jalr" is used instead which does not require "$gp". Remove the unnecessary $gp setup, simplifying the code and opening the road for some other cleanups. Suggested-by: Maciej W. Rozycki <macro@orcam.me.uk> Link: https://lore.kernel.org/lkml/alpine.DEB.2.21.2502172208570.65342@angie.orcam.me.uk/ Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Tested-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Link: https://lore.kernel.org/r/20250623-nolibc-mips-n32-v3-1-6ae2d89f4259@weissschuh.net
2025-06-28Merge tag 'loongarch-fixes-6.16-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson Pull LoongArch fixes from Huacai Chen: - replace __ASSEMBLY__ with __ASSEMBLER__ in headers like others - fix build warnings about export.h - reserve the EFI memory map region for kdump - handle __init vs inline mismatches - fix some KVM bugs * tag 'loongarch-fixes-6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: LoongArch: KVM: Disable updating of "num_cpu" and "feature" LoongArch: KVM: Check validity of "num_cpu" from user space LoongArch: KVM: Check interrupt route from physical CPU LoongArch: KVM: Fix interrupt route update with EIOINTC LoongArch: KVM: Add address alignment check for IOCSR emulation LoongArch: KVM: Avoid overflow with array index LoongArch: Handle KCOV __init vs inline mismatches LoongArch: Reserve the EFI memory map region LoongArch: Fix build warnings about export.h LoongArch: Replace __ASSEMBLY__ with __ASSEMBLER__ in headers
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-30 14:34:08 +0000