Re: FAILED: patch "[PATCH] kbuild: userprogs: use correct linker when mixing clang and" failed to apply to 5.4-stable tree

[Nathan Chancellor <nathan@kernel.org>]

On Thu, Aug 21, 2025 at 03:31:06PM +0200, gregkh@linuxfoundation.org wrote:
> 
> The patch below does not apply to the 5.4-stable tree.
> If someone wants it applied there, or to any other stable or longterm
> tree, then please email the backport, including the original git commit
> id to <stable@vger.kernel.org>.
...
> ------------------ original commit in Linus's tree ------------------
> 
> >From 936599ca514973d44a766b7376c6bbdc96b6a8cc Mon Sep 17 00:00:00 2001
> From: =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= <thomas.weissschuh@linutronix.de>
> Date: Mon, 28 Jul 2025 15:47:37 +0200
> Subject: [PATCH] kbuild: userprogs: use correct linker when mixing clang and
>  GNU ld
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
> 
> The userprogs infrastructure does not expect clang being used with GNU ld
> and in that case uses /usr/bin/ld for linking, not the configured $(LD).
> This fallback is problematic as it will break when cross-compiling.
> Mixing clang and GNU ld is used for example when building for SPARC64,
> as ld.lld is not sufficient; see Documentation/kbuild/llvm.rst.
> 
> Relax the check around --ld-path so it gets used for all linkers.
> 
> Fixes: dfc1b168a8c4 ("kbuild: userprogs: use correct lld when linking through clang")

While this commit is in 5.4, it does not actually do anything because
the userprogs infrastructure was not merged until 5.8 in commit
7f3a59db274c ("kbuild: add infrastructure to build userspace programs").
So I don't think it is worth applying this.

Cheers,
Nathan