linux-kernel - Re: [PATCH] asm-generic: fix compilation failure in cmpxchg

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Message-ID: <CAK8P3a2pm2EsxOxxf7SsEObxcNFJP60JOY_78a19g2kD4pL6Rw@mail.gmail.com>
Date:   Wed, 22 Mar 2017 12:27:56 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Mark Rutland <mark.rutland@....com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Will Deacon <will.deacon@....com>,
        Linux-MM <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] asm-generic: fix compilation failure in cmpxchg_double()

On Wed, Mar 22, 2017 at 12:10 PM, Dmitry Vyukov <dvyukov@...gle.com> wrote:
> Arnd reported that the new code leads to compilation failures
> with some versions of gcc. I've filed gcc issue 72873,
> but we need a kernel fix as well.
>
> Remove instrumentation from cmpxchg_double() for now.

Thanks, I also checked that fixes the build error for me.

       Arnd