linux-kernel - Re: [PATCH v3 07/23] powerpc/8xx: Fix vaddr for IMMR early remap

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Date:	Tue, 17 Nov 2015 23:41:55 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Christophe Leroy <christophe.leroy@....fr>
Cc:	kbuild-all@...org,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Michael Ellerman <mpe@...erman.id.au>, scottwood@...escale.com,
	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v3 07/23] powerpc/8xx: Fix vaddr for IMMR early remap

Hi Christophe,

[auto build test ERROR on powerpc/next]
[also build test ERROR on v4.4-rc1 next-20151117]

url:    https://github.com/0day-ci/linux/commits/Christophe-Leroy/powerpc-8xx-Use-large-pages-for-RAM-and-IMMR-and-other-improvments/20151117-221800
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-allnoconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   In file included from arch/powerpc/kernel/prom.c:59:0:
>> arch/powerpc/mm/mmu_decl.h:111:5: error: "CONFIG_PPC_8xx" is not defined [-Werror=undef]
    #if CONFIG_PPC_8xx
        ^
   cc1: all warnings being treated as errors

vim +/CONFIG_PPC_8xx +111 arch/powerpc/mm/mmu_decl.h

   105	
   106	struct hash_pte;
   107	extern struct hash_pte *Hash, *Hash_end;
   108	extern unsigned long Hash_size, Hash_mask;
   109	
   110	#define PHYS_IMMR_BASE (mfspr(SPRN_IMMR) & 0xfff80000)
 > 111	#if CONFIG_PPC_8xx
   112	#define VIRT_IMMR_BASE (__fix_to_virt(FIX_IMMR_BASE))
   113	#else
   114	#define VIRT_IMMR_BASE PHYS_IMMR_BASE

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