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From:   Linus Torvalds <torvalds@linux-foundation.org>
Date:   Mon, 9 Jan 2023 17:14:26 -0600
Message-ID: <CAHk-=wgg0hqiU5M3ExJdSNjx+BzDEC_fH7H_Rb0h_uykavg=Fw@mail.gmail.com>
Subject: Re: Linux 6.2-rc3
To:     Vlastimil Babka <vbabka@suse.cz>
Cc:     Guenter Roeck <linux@roeck-us.net>, Marco Elver <elver@google.com>,
        "Paul E. McKenney" <paulmck@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Kees Cook <kees@kernel.org>, Jaegeuk Kim <jaegeuk@kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Mon, Jan 9, 2023 at 4:43 PM Vlastimil Babka <vbabka@suse.cz> wrote:
>
> On 1/9/23 23:18, Linus Torvalds wrote:
> >
> > Does anybody remember - what was the compiler version again and what
> > do we need to disable?
>
> Guenter reported that "The problem is seen with gcc 11.3.0, but not with gcc
> 12.2.0 nor with gcc 10.3.0."
>
> https://lore.kernel.org/all/20221227002941.GA2691687@roeck-us.net/
>
> Kees said it's -Warray-bounds, already disabled on gcc 12 for other reasons:
>
> https://lore.kernel.org/all/D8BDBF66-E44C-45D4-9758-BAAA4F0C1998@kernel.org/

Thanks.

I added a GCC11_NO_ARRAY_BOUNDS symbol to match the existing
GCC12_NO_ARRAY_BOUNDS one, and to half-way document this thing.

I obviously don't see this warning myself, so my commit is "blind",
but looks completely obvious.

Famous last words.

               Linus

                 Linus