linux-kernel - Re: [PATCH v5 06/23] powerpc32: refactor x_mapped_by_bats() and x_mapped_by

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Date:	Sun, 7 Feb 2016 17:42:00 +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>,
	Scott Wood <oss@...error.net>, linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v5 06/23] powerpc32: refactor x_mapped_by_bats() and
 x_mapped_by_tlbcam() together

Hi Christophe,

[auto build test ERROR on powerpc/next]
[also build test ERROR on v4.5-rc2 next-20160205]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Christophe-Leroy/powerpc-8xx-Use-large-pages-for-RAM-and-IMMR-and-other-improvments/20160204-071322
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-ppc64e_defconfig (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 >>):

>> arch/powerpc/mm/fsl_booke_mmu.c:78:13: error: redefinition of 'v_block_mapped'
    phys_addr_t v_block_mapped(unsigned long va)
                ^
   In file included from arch/powerpc/mm/fsl_booke_mmu.c:57:0:
   arch/powerpc/mm/mmu_decl.h:168:27: note: previous definition of 'v_block_mapped' was here
    static inline phys_addr_t v_block_mapped(unsigned long va) { return 0; }
                              ^
>> arch/powerpc/mm/fsl_booke_mmu.c:90:15: error: redefinition of 'p_block_mapped'
    unsigned long p_block_mapped(phys_addr_t pa)
                  ^
   In file included from arch/powerpc/mm/fsl_booke_mmu.c:57:0:
   arch/powerpc/mm/mmu_decl.h:169:29: note: previous definition of 'p_block_mapped' was here
    static inline unsigned long p_block_mapped(phys_addr_t pa) { return 0; }
                                ^

vim +/v_block_mapped +78 arch/powerpc/mm/fsl_booke_mmu.c

    72		return tlbcam_addrs[idx].limit - tlbcam_addrs[idx].start + 1;
    73	}
    74	
    75	/*
    76	 * Return PA for this VA if it is mapped by a CAM, or 0
    77	 */
  > 78	phys_addr_t v_block_mapped(unsigned long va)
    79	{
    80		int b;
    81		for (b = 0; b < tlbcam_index; ++b)
    82			if (va >= tlbcam_addrs[b].start && va < tlbcam_addrs[b].limit)
    83				return tlbcam_addrs[b].phys + (va - tlbcam_addrs[b].start);
    84		return 0;
    85	}
    86	
    87	/*
    88	 * Return VA for a given PA or 0 if not mapped
    89	 */
  > 90	unsigned long p_block_mapped(phys_addr_t pa)
    91	{
    92		int b;
    93		for (b = 0; b < tlbcam_index; ++b)

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