kernel/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c, branch linux-rolling-stable

selftests/powerpc: Fix argument order to timer_sub()

2025-02-08T08:56:52Z

[ Upstream commit 2bf66e66d2e6feece6175ec09ec590a0a8563bdd ] Commit c814bf958926 ("powerpc/selftests: Use timersub() for gettimeofday()"), got the order of arguments to timersub() wrong, leading to a negative time delta being reported, eg: test: gettimeofday tags: git_version:v6.12-rc5-409-gdddf291c3030 time = -3.297781 success: gettimeofday The correct order is minuend, subtrahend, which in this case is end, start. Which gives: test: gettimeofday tags: git_version:v6.12-rc5-409-gdddf291c3030-dirty time = 3.300650 success: gettimeofday Fixes: c814bf958926 ("powerpc/selftests: Use timersub() for gettimeofday()") Signed-off-by: Michael Ellerman Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/20241218114347.428108-1-mpe@ellerman.id.au Signed-off-by: Sasha Levin

powerpc/selftests: Use timersub() for gettimeofday()

2022-08-22T03:36:59Z

Use timersub() function to simplify the code. Reported-by: Zeal Robot Signed-off-by: ye xingchen Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220816105106.82666-1-ye.xingchen@zte.com.cn

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191

2019-05-30T18:29:21Z

Based on 1 normalized pattern(s): licensed under gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 99 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Steve Winslow Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170027.163048684@linutronix.de Signed-off-by: Greg Kroah-Hartman

powerpc/selftest: Add gettimeofday() benchmark

2015-10-01T06:52:02Z

This adds a benchmark directory to the powerpc selftests and adds a gettimeofday() benchmark to it. Suggested-by: Michael Ellerman Signed-off-by: Michael Neuling Signed-off-by: Michael Ellerman