Re: [PATCH v2 5/5] selftests: Drop duplicate -D_GNU_SOURCE

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On 5/7/24 2:38 PM, Edward Liaw wrote:
-D_GNU_SOURCE can be de-duplicated here, as it is added by
KHDR_INCLUDES.

Signed-off-by: Edward Liaw <edliaw@xxxxxxxxxx>
---

Most of the churn in these Makefiles can be avoided if it is possible to
take my recommendation on patch 3/5 [1].

However, as it is, it is correct, so if the above does not happen,
please feel free to add:

Reviewed-by: John Hubbard <jhubbard@xxxxxxxxxx>


[1] https://lore.kernel.org/all/ec8ab737-a841-4cd5-8ec1-e0a777744262@xxxxxxxxxx/

thanks,
--
John Hubbard
NVIDIA

  tools/testing/selftests/futex/functional/Makefile | 2 +-
  tools/testing/selftests/iommu/Makefile            | 2 --
  tools/testing/selftests/net/tcp_ao/Makefile       | 2 +-
  tools/testing/selftests/resctrl/Makefile          | 2 +-
  4 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/futex/functional/Makefile b/tools/testing/selftests/futex/functional/Makefile
index a392d0917b4e..f79f9bac7918 100644
--- a/tools/testing/selftests/futex/functional/Makefile
+++ b/tools/testing/selftests/futex/functional/Makefile
@@ -1,6 +1,6 @@
  # SPDX-License-Identifier: GPL-2.0
  INCLUDES := -I../include -I../../ $(KHDR_INCLUDES)
-CFLAGS := $(CFLAGS) -g -O2 -Wall -D_GNU_SOURCE -pthread $(INCLUDES) $(KHDR_INCLUDES)
+CFLAGS := $(CFLAGS) -g -O2 -Wall -pthread $(INCLUDES) $(KHDR_INCLUDES)
  LDLIBS := -lpthread -lrt
LOCAL_HDRS := \
diff --git a/tools/testing/selftests/iommu/Makefile b/tools/testing/selftests/iommu/Makefile
index 32c5fdfd0eef..fd6477911f24 100644
--- a/tools/testing/selftests/iommu/Makefile
+++ b/tools/testing/selftests/iommu/Makefile
@@ -2,8 +2,6 @@
  CFLAGS += -Wall -O2 -Wno-unused-function
  CFLAGS += $(KHDR_INCLUDES)
-CFLAGS += -D_GNU_SOURCE
-
  TEST_GEN_PROGS :=
  TEST_GEN_PROGS += iommufd
  TEST_GEN_PROGS += iommufd_fail_nth
diff --git a/tools/testing/selftests/net/tcp_ao/Makefile b/tools/testing/selftests/net/tcp_ao/Makefile
index 522d991e310e..c608b1ec02e6 100644
--- a/tools/testing/selftests/net/tcp_ao/Makefile
+++ b/tools/testing/selftests/net/tcp_ao/Makefile
@@ -26,7 +26,7 @@ LIB	:= $(LIBDIR)/libaotst.a
  LDLIBS	+= $(LIB) -pthread
  LIBDEPS	:= lib/aolib.h Makefile
-CFLAGS := -Wall -O2 -g -D_GNU_SOURCE -fno-strict-aliasing
+CFLAGS	:= -Wall -O2 -g -fno-strict-aliasing
  CFLAGS	+= $(KHDR_INCLUDES)
  CFLAGS	+= -iquote ./lib/ -I ../../../../include/
diff --git a/tools/testing/selftests/resctrl/Makefile b/tools/testing/selftests/resctrl/Makefile
index 2deac2031de9..5073dbc96125 100644
--- a/tools/testing/selftests/resctrl/Makefile
+++ b/tools/testing/selftests/resctrl/Makefile
@@ -1,6 +1,6 @@
  # SPDX-License-Identifier: GPL-2.0
-CFLAGS = -g -Wall -O2 -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE
+CFLAGS = -g -Wall -O2 -D_FORTIFY_SOURCE=2
  CFLAGS += $(KHDR_INCLUDES)
TEST_GEN_PROGS := resctrl_tests






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