kernel/linux.git/tools/testing/selftests/vDSO, branch v6.19.11

selftests: vDSO: getrandom: Fix path to s390 chacha implementation

2026-01-17T14:51:28+00:00

The s390 vDSO source directory was recently moved, but this reference was not updated. Fixes: c0087d807ae8 ("s390/vdso: Rename vdso64 to vdso") Signed-off-by: Thomas Weißschuh Acked-by: Heiko Carstens Signed-off-by: Heiko Carstens

Merge tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2025-12-06T22:01:20+00:00

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 ...

selftests: complete kselftest include centralization

2025-11-27T22:24:31+00:00

This follow-up patch completes centralization of kselftest.h and ksefltest_harness.h includes in remaining seltests files, replacing all relative paths with a non-relative paths using shared -I include path in lib.mk Tested with gcc-13.3 and clang-18.1, and cross-compiled successfully on riscv, arm64, x86_64 and powerpc arch. [reddybalavignesh9979@gmail.com: add selftests include path for kselftest.h] Link: https://lkml.kernel.org/r/20251017090201.317521-1-reddybalavignesh9979@gmail.com Link: https://lkml.kernel.org/r/20251016104409.68985-1-reddybalavignesh9979@gmail.com Signed-off-by: Bala-Vignesh-Reddy Suggested-by: Andrew Morton Link: https://lore.kernel.org/lkml/20250820143954.33d95635e504e94df01930d0@linux-foundation.org/ Reviewed-by: Wei Yang Cc: David Hildenbrand Cc: David S. Miller Cc: Eric Dumazet Cc: Günther Noack Cc: Jakub Kacinski Cc: Liam Howlett Cc: Lorenzo Stoakes Cc: Michal Hocko Cc: Mickael Salaun Cc: Ming Lei Cc: Paolo Abeni Cc: Shuah Khan Cc: Simon Horman Cc: Suren Baghdasaryan Cc: Vlastimil Babka Signed-off-by: Andrew Morton

tools: Remove s390 compat support

2025-11-17T10:10:38+00:00

Remove s390 compat support from everything within tools, since s390 compat support will be removed from the kernel. Reviewed-by: Arnd Bergmann Acked-by: Thomas Weißschuh # tools/nolibc selftests/nolibc Reviewed-by: Thomas Weißschuh # selftests/vDSO Acked-by: Alexei Starovoitov # bpf bits Signed-off-by: Heiko Carstens

selftests: vDSO: Drop vdso_test_clock_getres

2025-09-09T08:57:39+00:00

vdso_test_abi provides the exact same functionality, properly uses kselftest.h and explicitly calls into the vDSO without relying on the libc. Drop the pointless testcase. Signed-off-by: Thomas Weißschuh Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/20250812-vdso-tests-fixes-v2-8-90f499dd35f8@linutronix.de

selftests: vDSO: vdso_test_abi: Add tests for clock_gettime64()

2025-09-09T08:57:39+00:00

To be y2038-safe, 32-bit userspace needs to explicitly call the 64-bit safe time APIs. For this the 32-bit vDSOs contains a clock_gettime() variant which always uses 64-bit time types. Also test this vDSO function. Signed-off-by: Thomas Weißschuh Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/20250812-vdso-tests-fixes-v2-7-90f499dd35f8@linutronix.de

selftests: vDSO: vdso_test_abi: Test CPUTIME clocks

2025-09-09T08:57:39+00:00

The structure is already there anyways, so test the CPUTIME clocks, too. Signed-off-by: Thomas Weißschuh Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/20250812-vdso-tests-fixes-v2-6-90f499dd35f8@linutronix.de

selftests: vDSO: vdso_test_abi: Use explicit indices for name array

2025-09-09T08:57:39+00:00

The array relies on the numeric values of the clock IDs. When reading the code it is not obvious that the order is correct. Make the code easier to read by using explicit indices. While at it make the array static. Signed-off-by: Thomas Weißschuh Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/20250812-vdso-tests-fixes-v2-5-90f499dd35f8@linutronix.de

selftests: vDSO: vdso_test_abi: Drop clock availability tests

2025-09-09T08:57:39+00:00

The test uses the kselftest.h framework and declares in its testplan to always execute 16 testcases. If any of the clockids were not available, the testplan would not be satisfied anymore and the test would fail. Apparently that never happened, so the clockids are always available. Remove the pointless checks. Signed-off-by: Thomas Weißschuh Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/20250812-vdso-tests-fixes-v2-4-90f499dd35f8@linutronix.de

selftests: vDSO: vdso_test_abi: Use ksft_finished()

2025-09-09T08:57:39+00:00

The existing logic is just an open-coded ksft_finished(). Replace it with the real thing. Signed-off-by: Thomas Weißschuh Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/20250812-vdso-tests-fixes-v2-3-90f499dd35f8@linutronix.de