[PATCH 3/3] powerpc/mm: Mark __init memory no-execute when STRICT_KERNEL_RWX=y

[kbuild test robot]

Hi Michael,

[auto build test ERROR on powerpc/next]
[also build test ERROR on next-20170714]
[cannot apply to v4.12]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Michael-Ellerman/powerpc-mm-radix-Refactor-radix__mark_rodata_ro/20170715-043340
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-allnoconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/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/mem.c: In function 'free_initmem':
>> arch/powerpc/mm/mem.c:413:2: error: implicit declaration of function 'mark_initmem_nx' [-Werror=implicit-function-declaration]
     mark_initmem_nx();
     ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +/mark_initmem_nx +413 arch/powerpc/mm/mem.c

   409	
   410	void free_initmem(void)
   411	{
   412		ppc_md.progress = ppc_printk_progress;
 > 413		mark_initmem_nx();
   414		free_initmem_default(POISON_FREE_INITMEM);
   415	}
   416	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
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