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Date: Mon, 16 Mar 2026 10:59:53 -0700
From: Nathan Chancellor <nathan@kernel.org>
To: Rong Xu <xur@google.com>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
	Nicolas Schier <nsc@kernel.org>,
	Masahiro Yamada <masahiroy@kernel.org>,
	Nick Desaulniers <nick.desaulniers+lkml@gmail.com>,
	Bill Wendling <morbo@google.com>,
	Justin Stitt <justinstitt@google.com>,
	Miguel Ojeda <ojeda@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Alice Ryhl <aliceryhl@google.com>,
	Sami Tolvanen <samitolvanen@google.com>,
	"Mike Rapoport (Microsoft)" <rppt@kernel.org>,
	Rafael Aquini <aquini@redhat.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Stafford Horne <shorne@gmail.com>,
	Christophe Leroy <christophe.leroy@csgroup.eu>,
	Piotr Gorski <piotrgorski@cachyos.org>,
	Teresa Johnson <tejohnson@google.com>, linux-kernel@vger.kernel.org,
	linux-kbuild@vger.kernel.org, llvm@lists.linux.dev,
	Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH v5 1/2] kbuild: move vmlinux.a build rule to
 scripts/Makefile.vmlinux_a
Message-ID: <20260316175953.GA1910339@ax162>
References: <20251028182822.3210436-1-xur@google.com>
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On Mon, Mar 16, 2026 at 05:27:01PM +0000, Rong Xu wrote:
> I think the problem was $(AR) mPi and llvm-ar <= 14 do work correctly
> in preserving the orders for "thin" archives without --thin.
> 
> We can either
> (1) Bump the LLVM version to 15 and remove the --thin flag, or

The minimum supported version of LLVM for building the kernel was
bumped to 15 in 6.18 with commit 20c098928356 ("kbuild: Bump minimum
version of LLVM for building the kernel to 15.0.0"), so it seems like we
can just do this?

Cheers,
Nathan