linux-kernel - Re: [PATCH] powerpc/msi: Remove VLA usage

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Message-ID: <CAGXu5jK+K5Wo2Syf0-b9mWorSSLSj8XbimPtPSayjiMMkWht5A@mail.gmail.com>
Date:   Thu, 19 Jul 2018 11:33:57 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Tyrel Datwyler <tyreld@...ux.vnet.ibm.com>,
        Rob Herring <robh@...nel.org>, Ingo Molnar <mingo@...nel.org>,
        PowerPC <linuxppc-dev@...ts.ozlabs.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] powerpc/msi: Remove VLA usage

On Thu, Jul 19, 2018 at 5:17 AM, Michael Ellerman <mpe@...erman.id.au> wrote:
> Kees Cook <keescook@...omium.org> writes:
>
>> On Fri, Jun 29, 2018 at 11:52 AM, Kees Cook <keescook@...omium.org> wrote:
>>> In the quest to remove all stack VLA usage from the kernel[1], this
>>> switches from an unchanging variable to a constant expression to eliminate
>>> the VLA generation.
>>>
>>> [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
>>>
>>> Signed-off-by: Kees Cook <keescook@...omium.org>
>>
>> Friendly ping! Michael, can you take this?
>
> Yep, sorry. I actually applied it weeks ago but hadn't pushed.

No worries! Thanks! :)

-Kees

-- 
Kees Cook
Pixel Security