linux-kernel - Re: [PATCH] x86/stackprotector: fix build failure with CONFIG

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Message-ID: <20250311192405.GG3493@redhat.com>
Date: Tue, 11 Mar 2025 20:24:06 +0100
From: Oleg Nesterov <oleg@...hat.com>
To: Borislav Petkov <bp@...en8.de>
Cc: Ard Biesheuvel <ardb@...nel.org>, Brian Gerst <brgerst@...il.com>,
	linux-kernel@...r.kernel.org, x86@...nel.org,
	Ingo Molnar <mingo@...nel.org>, "H . Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Uros Bizjak <ubizjak@...il.com>, stable@...r.kernel.org,
	Fangrui Song <i@...kray.me>, Nathan Chancellor <nathan@...nel.org>,
	Andy Lutomirski <luto@...nel.org>
Subject: Re: [PATCH] x86/stackprotector: fix build failure with
 CONFIG_STACKPROTECTOR=n

On 03/11, Borislav Petkov wrote:
>
> On Tue, Mar 11, 2025 at 07:10:57PM +0100, Oleg Nesterov wrote:
> > See the "older binutils?" above ;)
> >
> > my toolchain is quite old,
> >
> > 	$ ld -v
> > 	GNU ld version 2.25-17.fc23
> >
> > but according to Documentation/process/changes.rst
> >
> > 	binutils               2.25             ld -v
> >
> > it should be still supported.
>
> So your issue happens because of older binutils? Any other ingredient?

Yes, I think so.

> I'd like for the commit message to contain *exactly* what we're fixing here so
> that anyone who reads this, can know whether this fix is needed on her/his
> kernel or not...

OK. I'll update the subject/changelog to explain that this is only
needed for the older binutils and send V2.

Oleg.