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Date:   Fri, 19 Nov 2021 08:42:08 -0800
From:   Kees Cook <>
To:     Christophe Leroy <>
Cc:     Michael Ellerman <>,
        kernel test robot <>,
        Benjamin Herrenschmidt <>,
        Paul Mackerras <>,
        Sudeep Holla <>,
        Peter Zijlstra <>,
        Nicholas Piggin <>,
        "Aneesh Kumar K.V" <>,
        "Eric W. Biederman" <>,
        "" <>,
        "" <>,
        "" <>
Subject: Re: [PATCH] powerpc/signal32: Use struct_group() to zero spe regs

On Fri, Nov 19, 2021 at 05:35:00PM +0100, Christophe Leroy wrote:
> Neither do I. I was just scared by what I saw while reviewing your patch. A
> cleanup is probably required but it can be another patch.

Heh, understood! For my end, my objective with the fortify work is to
either split cross-member memcpy() calls (which is usually undesirable) or
add a struct group so it can be seen as a "single member" memcpy again
(and usually results in 0 differences in binary output). :)

Kees Cook

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