linux-kernel - Re: [PATCH] powerpc/fsl_booke/32: fix build with CONFIG_RANDOMIZE

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Date:   Mon, 15 Jun 2020 09:19:00 +0800
From:   Jason Yan <yanaijie@...wei.com>
To:     Arseny Solokha <asolokha@...kras.ru>,
        Michael Ellerman <mpe@...erman.id.au>,
        <linuxppc-dev@...ts.ozlabs.org>
CC:     Scott Wood <oss@...error.net>,
        Christophe Leroy <christophe.leroy@....fr>,
        <linux-kernel@...r.kernel.org>, <stable@...r.kernel.org>
Subject: Re: [PATCH] powerpc/fsl_booke/32: fix build with
 CONFIG_RANDOMIZE_BASE


在 2020/6/14 0:28, Arseny Solokha 写道:
> Building the current 5.8 kernel for a e500 machine with
> CONFIG_RANDOMIZE_BASE set yields the following failure:
> 
>    arch/powerpc/mm/nohash/kaslr_booke.c: In function 'kaslr_early_init':
>    arch/powerpc/mm/nohash/kaslr_booke.c:387:2: error: implicit declaration
> of function 'flush_icache_range'; did you mean 'flush_tlb_range'?
> [-Werror=implicit-function-declaration]
> 
> Indeed, including asm/cacheflush.h into kaslr_booke.c fixes the build.
> 
> The issue dates back to the introduction of that file and probably went
> unnoticed because there's no in-tree defconfig with CONFIG_RANDOMIZE_BASE
> set.
> 
> Fixes: 2b0e86cc5de6 ("powerpc/fsl_booke/32: implement KASLR infrastructure")
> Cc: stable@...r.kernel.org
> Signed-off-by: Arseny Solokha <asolokha@...kras.ru>
> ---
>   arch/powerpc/mm/nohash/kaslr_booke.c | 1 +
>   1 file changed, 1 insertion(+)
> 

Reviewed-by: Jason Yan <yanaijie@...wei.com>