linux-hardening - Re: [PATCH v5] checkpatch: Check for 0-length and 1-element arrays

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Message-ID: <04c4e064a44589d39361b7c7b849ee7f41ef76b5.camel@perches.com>
Date:   Thu, 01 Jun 2023 19:24:59 -0700
From:   Joe Perches <joe@...ches.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Kees Cook <keescook@...omium.org>
Cc:     Andy Whitcroft <apw@...onical.com>,
        Dwaipayan Ray <dwaipayanray1@...il.com>,
        Lukas Bulwahn <lukas.bulwahn@...il.com>,
        "Gustavo A . R . Silva" <gustavoars@...nel.org>,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH v5] checkpatch: Check for 0-length and 1-element arrays

On Thu, 2023-06-01 at 15:15 -0700, Andrew Morton wrote:
> On Thu,  1 Jun 2023 09:07:46 -0700 Kees Cook <keescook@...omium.org> wrote:
> 
> > Fake flexible arrays have been deprecated since last millennium. Proper
> > C99 flexible arrays must be used throughout the kernel so
> > CONFIG_FORTIFY_SOURCE and CONFIG_UBSAN_BOUNDS can provide proper array
> > bounds checking.
> > 
> > Cc: Andy Whitcroft <apw@...onical.com>
> > Cc: Dwaipayan Ray <dwaipayanray1@...il.com>
> > Cc: Lukas Bulwahn <lukas.bulwahn@...il.com>
> > Fixed-by: Joe Perches <joe@...ches.com>
> 
> You didn't checkpatch your checkpatch patch!
> 
> WARNING: Non-standard signature: Fixed-by:
> #248: 
> Fixed-by: Joe Perches <joe@...ches.com>
> 
> I'll do my usual
> 
> [joe@...ches.com: handle __packed for srtucts]

With that spelling?

Anyway, I went back and forth a few times with Kees
giving suggestions and corrections before sending it
on to you for more than just __packed.

I didn't (and still don't) care much about anything
other than the code.

cheers, Joe