linux-kernel - Re: [PATCH -next] powerpc/book3e: Fix build error

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Message-ID: <87sfp7o351.fsf@mpe.ellerman.id.au>
Date:   Wed, 18 May 2022 14:50:34 +1000
From:   Michael Ellerman <mpe@...erman.id.au>
To:     YueHaibing <yuehaibing@...wei.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        "benh@...nel.crashing.org" <benh@...nel.crashing.org>,
        "paulus@...ba.org" <paulus@...ba.org>
Cc:     "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] powerpc/book3e: Fix build error

YueHaibing <yuehaibing@...wei.com> writes:
> On 2022/5/17 18:45, Christophe Leroy wrote:
>> Le 17/05/2022 à 11:48, YueHaibing a écrit :
>>> arch/powerpc/mm/nohash/fsl_book3e.c: In function ‘relocate_init’:
>>> arch/powerpc/mm/nohash/fsl_book3e.c:348:2: error: implicit declaration of function ‘early_get_first_memblock_info’ [-Werror=implicit-function-declaration]
>>>    early_get_first_memblock_info(__va(dt_ptr), &size);
>>>    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>
>>> Add missing include file linux/of_fdt.h to fix this.
>>>
>>> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
>> 
>> Thats for fixing that.
>> 
>> Reviewed-by: Christophe Leroy <christophe.leroy@...roup.eu>
>> 
>> It means we don't have any defconfig for 32 bits booke with 
>> CONFIG_RELOCATABLE ?
>
> Indeed, there is no defconfig with CONFIG_RELOCATABLE under arch/powerpc/configs

It's selected by CRASH_DUMP, which is in ppc64_defconfig.

But it's not enabled in corenet32_smp_defconfig which is what I build,
or any of the other 85xx configs.

I guess it should be, I think it's true that RELOCATABLE=y exercises
more interesting code paths?

cheers