[PATCH v3 66/68] selftests/vDSO: Drop define _GNU_SOURCE

[Edward Liaw <edliaw@xxxxxxxxxx>]

_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@xxxxxxxxxx>
---
 tools/testing/selftests/vDSO/vdso_test_abi.c          | 1 -
 tools/testing/selftests/vDSO/vdso_test_clock_getres.c | 2 --
 tools/testing/selftests/vDSO/vdso_test_correctness.c  | 3 ---
 3 files changed, 6 deletions(-)

diff --git a/tools/testing/selftests/vDSO/vdso_test_abi.c b/tools/testing/selftests/vDSO/vdso_test_abi.c
index 96d32fd65b42..fb01e6ffb9a0 100644
--- a/tools/testing/selftests/vDSO/vdso_test_abi.c
+++ b/tools/testing/selftests/vDSO/vdso_test_abi.c
@@ -14,7 +14,6 @@
 #include <time.h>
 #include <sys/auxv.h>
 #include <sys/time.h>
-#define _GNU_SOURCE
 #include <unistd.h>
 #include <sys/syscall.h>
 
diff --git a/tools/testing/selftests/vDSO/vdso_test_clock_getres.c b/tools/testing/selftests/vDSO/vdso_test_clock_getres.c
index 38d46a8bf7cb..f0adb906c8bd 100644
--- a/tools/testing/selftests/vDSO/vdso_test_clock_getres.c
+++ b/tools/testing/selftests/vDSO/vdso_test_clock_getres.c
@@ -10,8 +10,6 @@
  * Power (32-bit and 64-bit), S390x (32-bit and 64-bit).
  * Might work on other architectures.
  */
-
-#define _GNU_SOURCE
 #include <elf.h>
 #include <err.h>
 #include <fcntl.h>
diff --git a/tools/testing/selftests/vDSO/vdso_test_correctness.c b/tools/testing/selftests/vDSO/vdso_test_correctness.c
index e691a3cf1491..c435b7a5b38d 100644
--- a/tools/testing/selftests/vDSO/vdso_test_correctness.c
+++ b/tools/testing/selftests/vDSO/vdso_test_correctness.c
@@ -3,9 +3,6 @@
  * ldt_gdt.c - Test cases for LDT and GDT access
  * Copyright (c) 2011-2015 Andrew Lutomirski
  */
-
-#define _GNU_SOURCE
-
 #include <stdio.h>
 #include <sys/time.h>
 #include <time.h>
-- 
2.45.0.118.g7fe29c98d7-goog