[PATCH v6 12/13] selftests/riscv: Drop redundant -D_GNU_SOURCE CFLAGS in Makefile

[Edward Liaw]

-D_GNU_SOURCE= will be provided by lib.mk CFLAGS, so -D_GNU_SOURCE
should be dropped to prevent redefinition warnings.

Signed-off-by: Edward Liaw <edliaw at google.com>
---
 tools/testing/selftests/riscv/mm/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/riscv/mm/Makefile b/tools/testing/selftests/riscv/mm/Makefile
index c333263f2b27..4664ed79e20b 100644
--- a/tools/testing/selftests/riscv/mm/Makefile
+++ b/tools/testing/selftests/riscv/mm/Makefile
@@ -3,7 +3,7 @@
 # Originally tools/testing/arm64/abi/Makefile
 
 # Additional include paths needed by kselftest.h and local headers
-CFLAGS += -D_GNU_SOURCE -std=gnu99 -I.
+CFLAGS += -std=gnu99 -I.
 
 TEST_GEN_FILES := mmap_default mmap_bottomup
 
-- 
2.45.2.741.gdbec12cfda-goog