kselftest/arm64: signal: drop now redundant GNU_SOURCE definition

The definition of GNU_SOURCE was recently centralised in an upper layer
kselftest Makefile, so the definition in the arm64 signal tests Makefile
is no longer needed. To make things worse, since both definitions are
not strictly identical, the compiler warns about it:
<command-line>: warning: "_GNU_SOURCE" redefined
<command-line>: note: this is the location of the previous definition

Drop the definition in the arm64/signal Makefile.

Fixes: cc937dad85ae ("selftests: centralize -D_GNU_SOURCE= to CFLAGS in lib.mk")
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240816153251.2833702-2-andre.przywara@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/tools/testing/selftests/arm64/signal/Makefile b/tools/testing/selftests/arm64/signal/Makefile
index edb3613513b8a8aecde51fdf5c1c28745a54fa2e..1381039fb36f9854835e131704ab7bc7a81f8586 100644 (file)
--- a/tools/testing/selftests/arm64/signal/Makefile
+++ b/tools/testing/selftests/arm64/signal/Makefile
@@ -2,7 +2,7 @@
 # Copyright (C) 2019 ARM Limited
 
 # Additional include paths needed by kselftest.h and local headers
-CFLAGS += -D_GNU_SOURCE -std=gnu99 -I.
+CFLAGS += -std=gnu99 -I.
 
 SRCS := $(filter-out testcases/testcases.c,$(wildcard testcases/*.c))
 PROGS := $(patsubst %.c,%,$(SRCS))