BUG_ON() is unlikely() to BUG()

For unlikely(), borrow the definition from tools/include/linux/compiler.h

Signed-off-by: Igor Stoppa igor.stoppa@huawei.com Cc: Dmitry Safonov dima@arista.com Cc: Shuah Khan shuah@kernel.org Cc: linux-kselftest@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- tools/testing/selftests/vm/map_populate.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/vm/map_populate.c b/tools/testing/selftests/vm/map_populate.c index 6b8aeaa0bf7a..1bf8ff068dcd 100644 --- a/tools/testing/selftests/vm/map_populate.c +++ b/tools/testing/selftests/vm/map_populate.c @@ -21,9 +21,13 @@ #define MMAP_SZ 4096 #endif

+#ifndef unlikely +# define unlikely(x) __builtin_expect(!!(x), 0) +#endif + #define BUG_ON(condition, description) \ do { \ - if (condition) { \ + if (unlikely(condition)) { \ fprintf(stderr, "[FAIL]\t%s:%d\t%s:%s\n", __func__, \ __LINE__, (description), strerror(errno)); \ exit(1); \