linux-kernel - Re: [PATCH v2 3/3] fortify: Use SIZE_MAX instead of (size

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Message-ID: <202209021544.AEF73D202@keescook>
Date:   Fri, 2 Sep 2022 15:44:33 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     linux-hardening@...r.kernel.org,
        Nathan Chancellor <nathan@...nel.org>,
        Tom Rix <trix@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        "Steven Rostedt (Google)" <rostedt@...dmis.org>,
        David Gow <davidgow@...gle.com>,
        Yury Norov <yury.norov@...il.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Sander Vanheule <sander@...nheule.net>,
        Peter Zijlstra <peterz@...radead.org>,
        Josh Poimboeuf <jpoimboe@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Isabella Basso <isabbasso@...eup.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Eric Biggers <ebiggers@...gle.com>,
        Hannes Reinecke <hare@...e.de>, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: Re: [PATCH v2 3/3] fortify: Use SIZE_MAX instead of (size_t)-1

On Fri, Sep 02, 2022 at 01:43:51PM -0700, Kees Cook wrote:
> Clean up uses of "(size_t)-1" in favor of SIZE_MAX.
> 
> Cc: linux-hardening@...r.kernel.org
> Suggested-by: Nick Desaulniers <ndesaulniers@...gle.com>
> Signed-off-by: Kees Cook <keescook@...omium.org>
> ---
>  include/linux/fortify-string.h | 28 ++++++++++++++--------------
>  1 file changed, 14 insertions(+), 14 deletions(-)

*brown paper bag*

This needs:

#include <linux/limits.h>

I will fix it locally...

-- 
Kees Cook