arch/mips/sgi-ip27/ip27-init.c:123:2: error: implicit declaration of function 'register_smp_ops'

[kernel test robot]

Hi Thomas,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   625d3449788f85569096780592549d0340e9c0c7
commit: c823f416097879515a02f3d97aecc1204ffc0773 MIPS: SGI-IP27: move registering of smp ops into IP27 specific code
date:   8 months ago
config: mips-randconfig-r021-20200622 (attached as .config)
compiler: mips64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout c823f416097879515a02f3d97aecc1204ffc0773
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   arch/mips/sgi-ip27/ip27-init.c:118:13: warning: no previous prototype for 'plat_mem_setup' [-Wmissing-prototypes]
     118 | void __init plat_mem_setup(void)
         |             ^~~~~~~~~~~~~~
   arch/mips/sgi-ip27/ip27-init.c: In function 'plat_mem_setup':
>> arch/mips/sgi-ip27/ip27-init.c:123:2: error: implicit declaration of function 'register_smp_ops' [-Werror=implicit-function-declaration]
     123 |  register_smp_ops(&ip27_smp_ops);
         |  ^~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/register_smp_ops +123 arch/mips/sgi-ip27/ip27-init.c

   117	
   118	void __init plat_mem_setup(void)
   119	{
   120		u64 p, e, n_mode;
   121		nasid_t nid;
   122	
 > 123		register_smp_ops(&ip27_smp_ops);

---
0-DAY CI Kernel Test Service, Intel Corporation
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