linux-kernel - Re: [PATCH] perf/arm-cci: Remove VLA usage

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Message-ID: <CAK8P3a1+MCxfPdQVXnm2jyQc6tGtV+wpV=_2+tPRBirTvPXTyw@mail.gmail.com>
Date:   Fri, 29 Jun 2018 23:26:27 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Kees Cook <keescook@...omium.org>
Cc:     Will Deacon <will.deacon@....com>,
        Mark Rutland <mark.rutland@....com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] perf/arm-cci: Remove VLA usage

On Fri, Jun 29, 2018 at 8:45 PM, Kees Cook <keescook@...omium.org> wrote:
> In the quest to remove all stack VLA usage from the kernel[1], this
> removes the VLA in favor of a maximum size and adds a sanity check
> at registration time. The sizes are all explicitly enumerated already,
> so this just collects them into macros.
>
> [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
>
> Signed-off-by: Kees Cook <keescook@...omium.org>


Looks good to me,

     Arnd