linux-kernel - Re: [PATCH 0/4] Make gcc-8.1 and binutils-2.30 the minimum version

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Message-ID: <Z_QZt8mPEf-dlvcZ@gmail.com>
Date: Mon, 7 Apr 2025 20:30:15 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Eric Biggers <ebiggers@...nel.org>
Cc: Arnd Bergmann <arnd@...nel.org>, linux-kbuild@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>, "H. Peter Anvin" <hpa@...or.com>,
	Ard Biesheuvel <ardb@...nel.org>, Borislav Petkov <bp@...en8.de>,
	Brian Gerst <brgerst@...il.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Ingo Molnar <mingo@...hat.com>, Jonathan Corbet <corbet@....net>,
	Marc Zyngier <maz@...nel.org>, Mark Rutland <mark.rutland@....com>,
	Masahiro Yamada <masahiroy@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nicolas Schier <nicolas@...sle.eu>, Takashi Iwai <tiwai@...e.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Uros Bizjak <ubizjak@...il.com>, Will Deacon <will@...nel.org>,
	linux-arm-kernel@...ts.infradead.org, linux-crypto@...r.kernel.org,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-raid@...r.kernel.org, x86@...nel.org
Subject: Re: [PATCH 0/4] Make gcc-8.1 and binutils-2.30 the minimum version


* Eric Biggers <ebiggers@...nel.org> wrote:

> On Mon, Apr 07, 2025 at 11:41:12AM +0200, Arnd Bergmann wrote:
> > From: Arnd Bergmann <arnd@...db.de>
> > 
> > x86 already requires gcc-8.1 since linux-6.15-rc1, which led me to
> > actually go through all  version checks and make this is the minimum
> > for all architectures.
> > 
> > Most of the actual resulting changes are actually for raising the
> > binutils version, which eliminates version checks on x86 and arm64.
> > 
> > Arnd Bergmann (4):
> >   kbuild: require gcc-8 and binutils-2.30
> >   raid6: skip avx512 checks
> >   x86: remove checks for binutils-2.30 and earlier
> >   arm64: drop binutils version checks
> 
> This is intended to supersede the patches from Uros that removed checks for
> binutils < 2.25, right?  See:
> 
> * https://lore.kernel.org/linux-crypto/20250404074135.520812-1-ubizjak@gmail.com/
> * https://lore.kernel.org/linux-crypto/20250404074135.520812-2-ubizjak@gmail.com
> * https://lore.kernel.org/linux-crypto/20250404074135.520812-3-ubizjak@gmail.com/

Yeah, so these commits (now pending in the x86 tree) should nicely 
complement each other, there shouldn't be much friction other than:

  a72d55dc3bd6 x86/idle: Remove CONFIG_AS_TPAUSE

... which will have a conflict in arch/x86/Kconfig.assembler but is 
straightforward to resolve.

> If we can indeed bump up the requirement to 2.30, that would be great.

Agreed.

Thanks,

	Ingo