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SubjectRe: [PATCH 4/4] sh: remove compiler flag duplication
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On Sun, 2023-02-19 at 23:15 +0900, Masahiro Yamada wrote:
> Every compiler flag added by arch/sh/Makefile is passed to the
> compiler twice.
>
> $(KBUILD_CPPFLAGS) + $(KBUILD_CFLAGS) is used for compiling *.c
> $(KBUILD_CPPFLAGS) + $(KBUILD_AFLAGS) is used for compiling *.S
>
> Given the above, adding $(cflags-y) to all of KBUILD_{CPP/C/A}FLAGS
> ends up with duplication.
>
> Add -I options to $(KBUILD_CPPFLAGS), and the rest of $(cflags-y)
> to KBUILD_{C,A}FLAGS.
>
> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
> ---
>
> arch/sh/Makefile | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/arch/sh/Makefile b/arch/sh/Makefile
> index f1c6aace8acb..cab2f9c011a8 100644
> --- a/arch/sh/Makefile
> +++ b/arch/sh/Makefile
> @@ -145,10 +145,8 @@ cpuincdir-y += cpu-common # Must be last
>
> drivers-y += arch/sh/drivers/
>
> -cflags-y += $(addprefix -I $(srctree)/arch/sh/include/, $(cpuincdir-y) $(machdir-y))
> -
> +KBUILD_CPPFLAGS += $(addprefix -I $(srctree)/arch/sh/include/, $(cpuincdir-y) $(machdir-y))
> KBUILD_CFLAGS += -pipe $(cflags-y)
> -KBUILD_CPPFLAGS += $(cflags-y)
> KBUILD_AFLAGS += $(cflags-y)
>
> ifeq ($(CONFIG_MCOUNT),y)

Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>

--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer
`. `' Physicist
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

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