[PATCH v3 10/68] selftests/cgroup: Drop define _GNU_SOURCE

[Edward Liaw]

_GNU_SOURCE is provided by lib.mk, so it should be dropped to prevent
redefinition warnings.

Fixes: 809216233555 ("selftests/harness: remove use of LINE_MAX")
Signed-off-by: Edward Liaw <edliaw at google.com>
---
 tools/testing/selftests/cgroup/cgroup_util.c        | 3 ---
 tools/testing/selftests/cgroup/test_core.c          | 2 --
 tools/testing/selftests/cgroup/test_cpu.c           | 2 --
 tools/testing/selftests/cgroup/test_hugetlb_memcg.c | 2 --
 tools/testing/selftests/cgroup/test_kmem.c          | 2 --
 tools/testing/selftests/cgroup/test_memcontrol.c    | 2 --
 tools/testing/selftests/cgroup/test_zswap.c         | 2 --
 7 files changed, 15 deletions(-)

diff --git a/tools/testing/selftests/cgroup/cgroup_util.c b/tools/testing/selftests/cgroup/cgroup_util.c
index 432db923bced..ce16a50ecff8 100644
--- a/tools/testing/selftests/cgroup/cgroup_util.c
+++ b/tools/testing/selftests/cgroup/cgroup_util.c
@@ -1,7 +1,4 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-
-#define _GNU_SOURCE
-
 #include <errno.h>
 #include <fcntl.h>
 #include <linux/limits.h>
diff --git a/tools/testing/selftests/cgroup/test_core.c b/tools/testing/selftests/cgroup/test_core.c
index a5672a91d273..de8baad46022 100644
--- a/tools/testing/selftests/cgroup/test_core.c
+++ b/tools/testing/selftests/cgroup/test_core.c
@@ -1,6 +1,4 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-
-#define _GNU_SOURCE
 #include <linux/limits.h>
 #include <linux/sched.h>
 #include <sys/types.h>
diff --git a/tools/testing/selftests/cgroup/test_cpu.c b/tools/testing/selftests/cgroup/test_cpu.c
index dad2ed82f3ef..5a4a314f6af7 100644
--- a/tools/testing/selftests/cgroup/test_cpu.c
+++ b/tools/testing/selftests/cgroup/test_cpu.c
@@ -1,6 +1,4 @@
 // SPDX-License-Identifier: GPL-2.0
-
-#define _GNU_SOURCE
 #include <linux/limits.h>
 #include <sys/sysinfo.h>
 #include <sys/wait.h>
diff --git a/tools/testing/selftests/cgroup/test_hugetlb_memcg.c b/tools/testing/selftests/cgroup/test_hugetlb_memcg.c
index 856f9508ea56..80d05d50a42d 100644
--- a/tools/testing/selftests/cgroup/test_hugetlb_memcg.c
+++ b/tools/testing/selftests/cgroup/test_hugetlb_memcg.c
@@ -1,6 +1,4 @@
 // SPDX-License-Identifier: GPL-2.0
-#define _GNU_SOURCE
-
 #include <linux/limits.h>
 #include <sys/mman.h>
 #include <stdio.h>
diff --git a/tools/testing/selftests/cgroup/test_kmem.c b/tools/testing/selftests/cgroup/test_kmem.c
index 96693d8772be..2e453ac50c0d 100644
--- a/tools/testing/selftests/cgroup/test_kmem.c
+++ b/tools/testing/selftests/cgroup/test_kmem.c
@@ -1,6 +1,4 @@
 // SPDX-License-Identifier: GPL-2.0
-#define _GNU_SOURCE
-
 #include <linux/limits.h>
 #include <fcntl.h>
 #include <stdio.h>
diff --git a/tools/testing/selftests/cgroup/test_memcontrol.c b/tools/testing/selftests/cgroup/test_memcontrol.c
index 41ae8047b889..c871630d62a3 100644
--- a/tools/testing/selftests/cgroup/test_memcontrol.c
+++ b/tools/testing/selftests/cgroup/test_memcontrol.c
@@ -1,6 +1,4 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-#define _GNU_SOURCE
-
 #include <linux/limits.h>
 #include <linux/oom.h>
 #include <fcntl.h>
diff --git a/tools/testing/selftests/cgroup/test_zswap.c b/tools/testing/selftests/cgroup/test_zswap.c
index d13954256335..87512e91845e 100644
--- a/tools/testing/selftests/cgroup/test_zswap.c
+++ b/tools/testing/selftests/cgroup/test_zswap.c
@@ -1,6 +1,4 @@
 // SPDX-License-Identifier: GPL-2.0
-#define _GNU_SOURCE
-
 #include <linux/limits.h>
 #include <unistd.h>
 #include <stdio.h>
-- 
2.45.0.118.g7fe29c98d7-goog