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: <6c23f58c-23ef-4f15-9fb3-b0f29c4e4880@app.fastmail.com>
Date: Thu, 21 Aug 2025 19:27:11 +0200
From: "Arnd Bergmann" <arnd@...db.de>
To: "Nathan Chancellor" <nathan@...nel.org>,
 "Andrew Morton" <akpm@...ux-foundation.org>
Cc: "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 20:57, 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>
> ---

Acked-by: Arnd Bergmann <arnd@...db.de>