linux-kernel - Re: [PATCH 01/10] kbuild: Bump minimum version of LLVM for building the kernel to 15.0.0

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Message-ID: <aKdN1VFGJ1pNvC5z@levanger>
Date: Thu, 21 Aug 2025 18:48:21 +0200
From: Nicolas Schier <nsc@...nel.org>
To: Nathan Chancellor <nathan@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	Arnd Bergmann <arnd@...db.de>, Kees Cook <kees@...nel.org>,
	Nick Desaulniers <nick.desaulniers+lkml@...il.com>,
	Bill Wendling <morbo@...gle.com>,
	Justin Stitt <justinstitt@...gle.com>, linux-kernel@...r.kernel.org,
	llvm@...ts.linux.dev, patches@...ts.linux.dev,
	linux-kbuild@...r.kernel.org
Subject: Re: [PATCH 01/10] kbuild: Bump minimum version of LLVM for building
 the kernel to 15.0.0

On Mon, Aug 18, 2025 at 11:57:17AM -0700, Nathan Chancellor wrote:
> s390 and x86 have required LLVM 15 since
> 
>   30d17fac6aae ("scripts/min-tool-version.sh: raise minimum clang version to 15.0.0 for s390")
>   7861640aac52 ("x86/build: Raise the minimum LLVM version to 15.0.0")
> 
> respectively but most other architectures allow LLVM 13.0.1 or newer. In
> accordance with the recent minimum supported version of GCC bump that
> happened in
> 
>   118c40b7b503 ("kbuild: require gcc-8 and binutils-2.30")
> 
> do the same for LLVM to 15.0.0.
> 
> Of the supported releases of Arch Linux, Debian, Fedora, and OpenSUSE
> surveyed in evaluating this bump, this only leaves behind Debian
> Bookworm (14.0.6) and Ubuntu Jammy (14.0.0). Debian Trixie has 19.1.7
> and Ubuntu Noble has 18.1.3 (so there are viable upgrade paths) or users
> can use apt.llvm.org, which provides even newer packages for those
> distributions.
> 
> Signed-off-by: Nathan Chancellor <nathan@...nel.org>
> ---
> Cc: linux-kbuild@...r.kernel.org
> ---
>  Documentation/process/changes.rst | 2 +-
>  scripts/min-tool-version.sh       | 6 ++----
>  2 files changed, 3 insertions(+), 5 deletions(-)
> 

Acked-by: Nicolas Schier <nsc@...nel.org>