linux-kernel - Re: [PATCH] checksyscalls: ignore -Wunused-macros

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Date:   Sat, 30 Apr 2022 02:02:24 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Vincent Mailhol <mailhol.vincent@...adoo.fr>
Cc:     Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        clang-built-linux <llvm@...ts.linux.dev>,
        Palmer Dabbelt <palmerdabbelt@...gle.com>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH] checksyscalls: ignore -Wunused-macros

On Sat, Apr 23, 2022 at 12:18 AM Vincent Mailhol
<mailhol.vincent@...adoo.fr> wrote:
>
> The macros defined in this file are for testing only and are purposely
> not used. When compiled with W=2, both gcc and clang yield some
> -Wunused-macros warnings. Ignore them.
>
> Signed-off-by: Vincent Mailhol <mailhol.vincent@...adoo.fr>
> ---

Applied to linux-kbuild (only the second hunk)
Thanks.

The current check is not nice,
but this does not hurt.



>  scripts/checksyscalls.sh | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
> index 9dbab13329fa..cde15f22ec98 100755
> --- a/scripts/checksyscalls.sh
> +++ b/scripts/checksyscalls.sh
> @@ -255,6 +255,7 @@ cat << EOF
>  /* 64-bit ports never needed these, and new 32-bit ports can use statx */
>  #define __IGNORE_fstat64
>  #define __IGNORE_fstatat64
> +
>  EOF
>  }

Noise.
I dropped it.



>
> @@ -268,4 +269,4 @@ syscall_list() {
>  }
>
>  (ignore_list && syscall_list $(dirname $0)/../arch/x86/entry/syscalls/syscall_32.tbl) | \
> -$* -Wno-error -E -x c - > /dev/null
> +$* -Wno-error -Wno-unused-macros -E -x c - > /dev/null
> --
> 2.35.1
>


-- 
Best Regards
Masahiro Yamada