linux-kernel - Re: [PATCH] Documentation/changes: Raise minimum supported binutils version to 2.23

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Message-ID: <20200324234947.GA3373941@rani.riverdale.lan>
Date:   Tue, 24 Mar 2020 19:49:48 -0400
From:   Arvind Sankar <nivedita@...m.mit.edu>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Arvind Sankar <nivedita@...m.mit.edu>,
        Borislav Petkov <bp@...en8.de>,
        "Jason A. Donenfeld" <Jason@...c4.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, X86 ML <x86@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Thomas Lendacky <Thomas.Lendacky@....com>,
        Mauro Rossi <issor.oruam@...il.com>,
        Michael Matz <matz@...e.de>
Subject: Re: [PATCH] Documentation/changes: Raise minimum supported binutils
 version to 2.23

On Tue, Mar 24, 2020 at 03:14:38PM -0700, Linus Torvalds wrote:
> On Tue, Mar 24, 2020 at 2:42 PM Arvind Sankar <nivedita@...m.mit.edu> wrote:
> >
> > This is just a documentation patch right?
> 
> That patch, yes.
> 
> However, there's a second patch that knows that if we have binutils >=
> 2.22, then we don't need to check for AVX2 or ADX support, because we
> know it's there.
> 
>            Linus

Ok. But if you're otherwise ok taking those AVX2/ADX patches for 5.7, as
noted in my other email [1], the x86 build has been broken with
binutils <= 2.22 since v5.3.

[1] https://lore.kernel.org/lkml/20200324220147.GA3253486@rani.riverdale.lan/