The top level Makefile adds -Wall globally for all host tools: KBUILD_HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \ I see two "-Wall" added for compiling these tools. Of course, it is allowed to pass the same option multiple times, but we do not need to do so. Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> --- arch/s390/tools/Makefile | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/s390/tools/Makefile b/arch/s390/tools/Makefile index 4ff6a2124522..8fb66c99840a 100644 --- a/arch/s390/tools/Makefile +++ b/arch/s390/tools/Makefile @@ -14,8 +14,7 @@ kapi: $(kapi-hdrs-y) hostprogs-y += gen_facilities hostprogs-y += gen_opcode_table -HOSTCFLAGS_gen_facilities.o += -Wall $(LINUXINCLUDE) -HOSTCFLAGS_gen_opcode_table.o += -Wall +HOSTCFLAGS_gen_facilities.o += $(LINUXINCLUDE) # Ensure output directory exists _dummy := $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)') -- 2.17.1
