Hi Christophe,

[auto build test ERROR on powerpc/next]
[also build test ERROR on v4.5-rc2 next-20160204]
[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-mpc885_ads_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/8xx_mmu.c: In function 'mmu_mapin_immr':
>> arch/powerpc/mm/8xx_mmu.c:61:17: error: lvalue required as left operand of assignment
     pmd_val(*pmdp) = val;
                    ^

vim +61 arch/powerpc/mm/8xx_mmu.c

    55		unsigned long v = VIRT_IMMR_BASE;
    56	#ifdef CONFIG_PPC_4K_PAGES
    57		pmd_t *pmdp;
    58		unsigned long val = p | MD_PS512K | MD_GUARDED;
    59	
    60		pmdp = pmd_offset(pud_offset(pgd_offset_k(v), v), v);
  > 61		pmd_val(*pmdp) = val;
    62	#else /* CONFIG_PPC_16K_PAGES */
    63		unsigned long f = pgprot_val(PAGE_KERNEL_NCG);
    64		int offset;

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