[PATCH v3] powerpc/64s: reimplement book3s idle code in C

[kbuild test robot]

Hi Nicholas,

I love your patch! Yet something to improve:

[auto build test ERROR on powerpc/next]
[also build test ERROR on v4.19-rc1 next-20180830]
[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/Nicholas-Piggin/powerpc-64s-reimplement-book3s-idle-code-in-C/20180829-014912
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-skiroot_defconfig (attached as .config)
compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

>> arch/powerpc/platforms/powernv/idle.c:773:22: error: 'power9_offline_stop' defined but not used [-Werror=unused-function]
    static unsigned long power9_offline_stop(unsigned long psscr)
                         ^~~~~~~~~~~~~~~~~~~
>> arch/powerpc/platforms/powernv/idle.c:486:22: error: 'power7_offline' defined but not used [-Werror=unused-function]
    static unsigned long power7_offline(void)
                         ^~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +/power9_offline_stop +773 arch/powerpc/platforms/powernv/idle.c

   772	
 > 773	static unsigned long power9_offline_stop(unsigned long psscr)
   774	{
   775		unsigned long srr1;
   776	

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