linux-kernel - Re: [PATCH v7] kernel.h: Retain constant expression output for max()/min()

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Message-ID: <CAGXu5jKVGtBFP2NuPwjyJjEmUG7N4Z+6o5v6-F4ipY9yUx+XOg@mail.gmail.com>
Date:   Thu, 5 Apr 2018 17:52:43 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Martin Uecker <Martin.Uecker@....uni-goettingen.de>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Randy Dunlap <rdunlap@...radead.org>,
        Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        Ingo Molnar <mingo@...nel.org>,
        David Laight <David.Laight@...lab.com>,
        Ian Abbott <abbotti@....co.uk>,
        LKML <linux-kernel@...r.kernel.org>,
        Kernel Hardening <kernel-hardening@...ts.openwall.com>
Subject: Re: [PATCH v7] kernel.h: Retain constant expression output for max()/min()

On Thu, Apr 5, 2018 at 3:09 PM, Kees Cook <keescook@...omium.org> wrote:
> On Thu, Apr 5, 2018 at 2:20 PM, Linus Torvalds
> <torvalds@...ux-foundation.org> wrote:
>> There may be others hiding that weren't caught by my limited build
>> testing, trhough. So please keep an eye out for build warnings.
>
> I'll spin up my full multi-arch allmodconfig builds and see if
> anything kicks out...

FWIW, nothing exploded on allmodconfig for x86_64, arm64, i386, arm,
powerpc64, s390, powerpc, mips, nor sparc64...

-Kees

-- 
Kees Cook
Pixel Security