linux-hardening - Re: [PATCH] powerpc/64s: Disable stack variable initialisation for prom

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Message-ID: <CADVatmMSKT6yYU5bBa48DWffOBysnONRPXvoiVZnxQGj+bVQaA@mail.gmail.com>
Date:   Mon, 18 Jul 2022 16:03:51 +0100
From:   Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        Kees Cook <keescook@...omium.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-hardening@...r.kernel.org,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] powerpc/64s: Disable stack variable initialisation for prom_init

On Mon, Jul 18, 2022 at 2:44 PM Michael Ellerman <mpe@...erman.id.au> wrote:
>
> With GCC 12 allmodconfig prom_init fails to build:
>
>   Error: External symbol 'memset' referenced from prom_init.c
>   make[2]: *** [arch/powerpc/kernel/Makefile:204: arch/powerpc/kernel/prom_init_check] Error 1
>

<snip>

>
> Reported-by: Sudip Mukherjee <sudipm.mukherjee@...il.com>
> Signed-off-by: Michael Ellerman <mpe@...erman.id.au>

And, this has fixed the build failure.
Thanks Michael.


-- 
Regards
Sudip