linux-dev/tools/testing/selftests/powerpc/benchmarks/null_syscall.c, branch linus/master

powerpc/selftests: Use gettid() instead of getppid() for null_syscall

2021-06-16T14:09:10Z

gettid() is 10% lighter than getppid(), use it for null_syscall selftest. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/0ad62673d3e063f848e7c99d719bb966efd433e8.1622809833.git.christophe.leroy@csgroup.eu

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman

powerpc/selftest: fix type of mftb() in null_syscall

2019-02-21T13:10:15Z

All callers of mftb() expect 'unsigned long', and the function itself only returns lower part of the TB so it really is 'unsigned long' not 'unsigned long long' Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman

selftests/powerpc: Add Anton's null_syscall benchmark to the selftests

2016-11-14T00:11:51Z

Pull in a version of Anton's null_syscall benchmark: http://ozlabs.org/~anton/junkcode/null_syscall.c Suggested-by: Michael Ellerman Signed-off-by: Anton Blanchard Signed-off-by: Rui Teng Signed-off-by: Michael Ellerman