kernel/tools/testing/selftests/timers/rtcpie.c, branch linux-rolling-stable

selftests: complete kselftest include centralization

2025-11-27T22:24:31Z

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/timers: remove unused irqcount variable

2024-07-11T17:23:54Z

When building with clang, via: make LLVM=1 -C tools/testing/selftest ...clang warns about an unused irqcount variable. clang is correct: the variable is incremented and then ignored. Fix this by deleting the irqcount variable. Signed-off-by: John Hubbard Acked-by: John Stultz Reviewed-by: Muhammad Usama Anjum Signed-off-by: Shuah Khan

selftests: timers: rtcpie: skip test if default RTC device does not exist

2021-06-08T01:18:52Z

This test will require /dev/rtc0, the default RTC device, or one specified by user to run. Since this default RTC is not guaranteed to exist on all of the devices, so check its existence first, otherwise skip this test with the kselftest skip code 4. Without this patch this test will fail like this on a s390x zVM: $ selftests: timers: rtcpie $ /dev/rtc0: No such file or directory not ok 1 selftests: timers: rtcpie # exit=22 With this patch: $ selftests: timers: rtcpie $ Default RTC /dev/rtc0 does not exist. Test Skipped! not ok 9 selftests: timers: rtcpie # SKIP Fixed up change log so "With this patch" text doesn't get dropped. Shuah Khan Signed-off-by: Po-Hsu Lin Signed-off-by: Shuah Khan

selftests: timers: rtcpie: restore previous PIE rate

2018-05-30T21:21:51Z

After the test ends, restore the PIE rate to its previous value to be less disruptive. Signed-off-by: Alexandre Belloni Signed-off-by: Shuah Khan (Samsung OSG)

selftests: timers: move PIE tests out of rtctest

2018-05-30T21:21:51Z

Since commit 6610e0893b8bc ("RTC: Rework RTC code to use timerqueue for events"), PIE are completely handled using hrtimers, without actually using any underlying hardware RTC. Move PIE testing out of rtctest. It still depends on the presence of an RTC (to access the device file) but doesn't depend on it actually working. Signed-off-by: Alexandre Belloni Signed-off-by: Shuah Khan (Samsung OSG)