Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 15/29] tools include: Introduce linux/bug.h, from the kernel sources | Date | Mon, 4 Jun 2018 08:58:11 +0200 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Arnaldo Carvalho de Melo <acme@redhat.com>
commit 379d61b1c7d42512cded04d372f15a7e725db9e1 upstream.
With just what we will need in the upcoming changesets, the BUILD_BUG_ON_ZERO() definition.
Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-lw8zg7x6ttwcvqhp90mwe3vo@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- tools/include/linux/bug.h | 10 ++++++++++ tools/perf/MANIFEST | 1 + 2 files changed, 11 insertions(+)
--- /dev/null +++ b/tools/include/linux/bug.h @@ -0,0 +1,10 @@ +#ifndef _TOOLS_PERF_LINUX_BUG_H +#define _TOOLS_PERF_LINUX_BUG_H + +/* Force a compilation error if condition is true, but also produce a + result (of value 0 and type size_t), so the expression can be used + e.g. in a structure initializer (or where-ever else comma expressions + aren't permitted). */ +#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); })) + +#endif /* _TOOLS_PERF_LINUX_BUG_H */ --- a/tools/perf/MANIFEST +++ b/tools/perf/MANIFEST @@ -63,6 +63,7 @@ tools/include/linux/bitops.h tools/include/linux/compiler.h tools/include/linux/compiler-gcc.h tools/include/linux/coresight-pmu.h +tools/include/linux/bug.h tools/include/linux/filter.h tools/include/linux/hash.h tools/include/linux/kernel.h
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