_GNU_SOURCE is provided by lib.mk, so it should be dropped to prevent redefinition warnings. Signed-off-by: Edward Liaw <edliaw@xxxxxxxxxx> --- tools/testing/selftests/sched/cs_prctl_test.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/sched/cs_prctl_test.c b/tools/testing/selftests/sched/cs_prctl_test.c index 62fba7356af2..abf907f243b6 100644 --- a/tools/testing/selftests/sched/cs_prctl_test.c +++ b/tools/testing/selftests/sched/cs_prctl_test.c @@ -18,8 +18,6 @@ * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, see <http://www.gnu.org/licenses>. */ - -#define _GNU_SOURCE #include <sys/eventfd.h> #include <sys/wait.h> #include <sys/types.h> -- 2.45.0.118.g7fe29c98d7-goog