[powerpc:next-test 59/117] arch/powerpc/kernel/pci-common.c:1704:12: error: no previous prototype for function 'discover_phbs'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next-test
head:   a4d002e384ba1909c1c03799603f00c5909d6097
commit: 1f4165b859f7a32b147fe4cac2d558001ed7e1ee [59/117] powerpc/pci: Add ppc_md.discover_phbs()
config: powerpc64-randconfig-r035-20210202 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 275c6af7d7f1ed63a03d05b4484413e447133269)
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
        # install powerpc64 cross compiling tool for clang build
        # apt-get install binutils-powerpc64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id=1f4165b859f7a32b147fe4cac2d558001ed7e1ee
        git remote add powerpc https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
        git fetch --no-tags powerpc next-test
        git checkout 1f4165b859f7a32b147fe4cac2d558001ed7e1ee
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>

All errors (new ones prefixed by >>):

>> arch/powerpc/kernel/pci-common.c:1704:12: error: no previous prototype for function 'discover_phbs' [-Werror,-Wmissing-prototypes]
   int __init discover_phbs(void)
              ^
   arch/powerpc/kernel/pci-common.c:1704:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int __init discover_phbs(void)
   ^
   static 
   1 error generated.


vim +/discover_phbs +1704 arch/powerpc/kernel/pci-common.c

  1702	
  1703	
> 1704	int __init discover_phbs(void)

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
-------------- next part --------------
A non-text attachment was scrubbed...
Name: .config.gz
Type: application/gzip
Size: 33373 bytes
Desc: not available
URL: <http://lists.ozlabs.org/pipermail/linuxppc-dev/attachments/20210203/3796b68f/attachment-0001.gz>