kernel/linux.git/tools/testing/selftests/ipc, branch master

selftests: fix ARCH normalization to handle command-line argument

2026-03-28T04:19:44+00:00

Several selftests Makefiles (e.g. prctl, breakpoints, etc) attempt to normalize the ARCH variable by converting x86_64 and i.86 to x86. However, it uses the conditional assignment operator '?='. When ARCH is passed as a command-line argument (e.g., during an rpmbuild process), the '?=' operator ignores the shell command and the sed transformation. This leads to an incorrect ARCH value being used, which causes build failures # make -C tools/testing/selftests TARGETS=prctl ARCH=x86_64 make: Entering directory '/build/tools/testing/selftests' make[1]: Entering directory '/build/tools/testing/selftests/prctl' make[1]: *** No targets. Stop. make[1]: Leaving directory '/build/tools/testing/selftests/prctl' make: *** [Makefile:197: all] Error 2 Change the assignment to use 'override' and ':=' to ensure the normalization logic is applied regardless of how the ARCH variable was initially defined. Link: https://lkml.kernel.org/r/20260309205145.572778-1-aleksey.oladko@virtuozzo.com Signed-off-by: Aleksei Oladko Cc: Shuah Khan Cc: Wei Yang Cc: Bala-Vignesh-Reddy Cc: Chelsy Ratnawat Signed-off-by: Andrew Morton

selftests/ipc: skip msgque test when MSG_COPY is unsupported

2026-03-28T04:19:34+00:00

msgque kselftest uses msgrcv(..., MSG_COPY) to copy messages. When the kernel is built without CONFIG_CHECKPOINT_RESTORE, prepare_copy() is stubbed out and msgrcv() returns -ENOSYS. The test currently reports this as a failure even though it is simply a missing feature/configuration. Skip the test when msgrcv() fails with ENOSYS. Link: https://lkml.kernel.org/r/20260210135359.178636-1-jouyeol8739@gmail.com Signed-off-by: UYeol Jo Cc: Shuah Khan Cc: Wei Yang Signed-off-by: Andrew Morton

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

selftests: ipc: Replace fail print statements with ksft_test_result_fail

2025-06-17T20:45:05+00:00

Use the standard kselftest failure report function to ensure consistent test output formatting. This improves readability and integration with automated test frameworks. Link: https://lore.kernel.org/r/20250531070140.24287-1-sef1548@gmail.com Signed-off-by: Nick Huang Signed-off-by: Shuah Khan

selftests/ipc: Remove unused variables

2025-01-15T00:06:31+00:00

Delete variables "msg" and "pid" that have never been used. Link: https://lore.kernel.org/r/20241202045827.4704-1-zhangjiao2@cmss.chinamobile.com Signed-off-by: zhang jiao Reviewed-by: Muhammad Usama Anjum Signed-off-by: Shuah Khan

selftests/ipc: ksft_exit functions do not return

2024-05-06T19:57:20+00:00

After commit f7d5bcd35d42 ("selftests: kselftest: Mark functions that unconditionally call exit() as __noreturn"), ksft_exit_...() functions are marked as __noreturn, which means the return type should not be 'int' but 'void' because they are not returning anything (and never were since exit() has always been called). To facilitate updating the return type of these functions, remove 'return' before the calls to ksft_exit_...(), as __noreturn prevents the compiler from warning that a caller of the ksft_exit functions does not return a value because the program will terminate upon calling these functions. Reviewed-by: Muhammad Usama Anjum Reviewed-by: Thomas Gleixner Signed-off-by: Nathan Chancellor Signed-off-by: Shuah Khan

selftests: ipc: Fix incorrect kernel headers search path

2023-02-13T16:09:44+00:00

Use $(KHDR_INCLUDES) as lookup path for kernel headers. This prevents building against kernel headers from the build environment in scenarios where kernel headers are installed into a specific output directory (O=...). Signed-off-by: Mathieu Desnoyers Cc: Shuah Khan Cc: linux-kselftest@vger.kernel.org Cc: Ingo Molnar Cc: # 5.18+ Signed-off-by: Shuah Khan

selftests/ipc: remove unneeded semicolon

2021-02-08T23:32:43+00:00

Eliminate the following coccicheck warning: ./tools/testing/selftests/ipc/msgque.c:72:3-4: Unneeded semicolon ./tools/testing/selftests/ipc/msgque.c:183:2-3: Unneeded semicolon ./tools/testing/selftests/ipc/msgque.c:191:2-3: Unneeded semicolon Signed-off-by: Yang Li Signed-off-by: Shuah Khan

selftests/ipc: Fix test failure seen after initial test run

2020-04-14T16:24:28+00:00

After successfully running the IPC msgque test once, subsequent runs result in a test failure: $ sudo ./run_kselftest.sh TAP version 13 1..1 # selftests: ipc: msgque # Failed to get stats for IPC queue with id 0 # Failed to dump queue: -22 # Bail out! # # Pass 0 Fail 0 Xfail 0 Xpass 0 Skip 0 Error 0 not ok 1 selftests: ipc: msgque # exit=1 The dump_queue() function loops through the possible message queue index values using calls to msgctl(kern_id, MSG_STAT, ...) where kern_id represents the index value. The first time the test is ran, the initial index value of 0 is valid and the test is able to complete. The index value of 0 is not valid in subsequent test runs and the loop attempts to try index values of 1, 2, 3, and so on until a valid index value is found that corresponds to the message queue created earlier in the test. The msgctl() syscall returns -1 and sets errno to EINVAL when invalid index values are used. The test failure is caused by incorrectly comparing errno to -EINVAL when cycling through possible index values. Fix invalid test failures on subsequent runs of the msgque test by correctly comparing errno values to a non-negated EINVAL. Fixes: 3a665531a3b7 ("selftests: IPC message queue copy feature test") Signed-off-by: Tyler Hicks Signed-off-by: Shuah Khan

.gitignore: add SPDX License Identifier

2020-03-25T10:50:48+00:00

Add SPDX License Identifier to all .gitignore files. Signed-off-by: Masahiro Yamada Signed-off-by: Greg Kroah-Hartman