linux-kernel - Re: [PATCH] usr: shorten cmd

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Message-ID: <CAK7LNATnLX6xtZRZhNyRUPVSUXixAxTapCOjVvTrTO1gCZid5Q@mail.gmail.com>
Date: Tue, 16 Jul 2024 17:52:35 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: linux-kbuild@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, Nathan Chancellor <nathan@...nel.org>, 
	Nicolas Schier <nicolas@...sle.eu>
Subject: Re: [PATCH] usr: shorten cmd_initfs in Makefile

On Fri, May 31, 2024 at 9:28 PM Masahiro Yamada <masahiroy@...nel.org> wrote:
>
> Avoid repetition of long variables.
>
> No functional change intended.
>
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
> ---
>
>  usr/Makefile | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/usr/Makefile b/usr/Makefile
> index 132ef7e96e6d..75224d927025 100644
> --- a/usr/Makefile
> +++ b/usr/Makefile
> @@ -62,9 +62,9 @@ $(deps_initramfs): ;
>  quiet_cmd_initfs = GEN     $@
>        cmd_initfs = \
>         $(CONFIG_SHELL) $< -o $@ -l $(obj)/.initramfs_data.cpio.d \
> -       $(if $(CONFIG_INITRAMFS_ROOT_UID), -u $(CONFIG_INITRAMFS_ROOT_UID)) \
> -       $(if $(CONFIG_INITRAMFS_ROOT_GID), -g $(CONFIG_INITRAMFS_ROOT_GID)) \
> -       $(if $(KBUILD_BUILD_TIMESTAMP), -d "$(KBUILD_BUILD_TIMESTAMP)") \
> +       $(addprefix -u , $(CONFIG_INITRAMFS_ROOT_UID)) \
> +       $(addprefix -g , $(CONFIG_INITRAMFS_ROOT_GID)) \
> +       $(patsubst %,-d "%", $(KBUILD_BUILD_TIMESTAMP)) \


I dropped the last line because it will not work
when $(KBUILD_BUILD_TIMESTAMP) contains a space.





>         $(ramfs-input)
>
>  # We rebuild initramfs_data.cpio if:
> --
> 2.40.1
>


-- 
Best Regards
Masahiro Yamada