linux-kernel - Re: [RESEND PATCH v2] kbuild: buildtar: Add explicit 32-bit arm support

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Date: Fri, 21 Jun 2024 07:55:14 -0700
From: Nathan Chancellor <nathan@...nel.org>
To: Calvin Owens <calvin@...nvd.org>
Cc: linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
	Nicolas Schier <nicolas@...sle.eu>,
	Masahiro Yamada <masahiroy@...nel.org>
Subject: Re: [RESEND PATCH v2] kbuild: buildtar: Add explicit 32-bit arm
 support

Hi Calvin,

On Thu, Jun 20, 2024 at 07:25:59PM -0700, Calvin Owens wrote:
> Implement buildtar for 32-bit arm, so the zImage (or xipimage) appears
> at boot/vmlinuz-$foo, rather than at boot/vmlinux-kbuild-$foo, matching
> the structure of the tar-pkg on arm64 and other architectures.
> 
> Link: https://lore.kernel.org/all/ZhmKzqxHXaSZmXee@mozart.vkv.me/
> Signed-off-by: Calvin Owens <calvin@...nvd.org>
> Reviewed-by: Nathan Chancellor <nathan@...nel.org>
> ---
>  scripts/package/buildtar | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/scripts/package/buildtar b/scripts/package/buildtar
> index eb67787f8673..23d7ff675396 100755
> --- a/scripts/package/buildtar
> +++ b/scripts/package/buildtar
> @@ -104,6 +104,9 @@ case "${ARCH}" in
>  				cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}";;
>  		esac
>  		;;
> +	arm)
> +		[ -f "${KBUILD_IMAGE}" ] && cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
> +		;;
>  	*)
>  		cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
>  		;;
> -- 
> 2.39.2
> 

Is this change necessary after commit 2b1ab1405068 ("kbuild: buildtar:
remove warning for the default case")? Without the '[ -f ... ] &&' part
of the expression, which was removed for other cases in
commit c3f7bed8fa14 ("kbuild: buildtar: add comments about inconsistent
package generation"), it appears to be the same thing.

Cheers,
Nathan