Re: [PATCH bpf-next 1/2] bpf: add new map ops ->map_pressure

[kernel test robot <lkp@intel.com>]

Hi Anton,

kernel test robot noticed the following build errors:

[auto build test ERROR on bpf-next/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Anton-Protopopov/bpf-add-new-map-ops-map_pressure/20230531-190704
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
patch link:    https://lore.kernel.org/r/20230531110511.64612-2-aspsk%40isovalent.com
patch subject: [PATCH bpf-next 1/2] bpf: add new map ops ->map_pressure
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20230601/202306010837.mGhA199K-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 12.3.0
reproduce (this is a W=1 build):
        mkdir -p ~/bin
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/025cc7c86c6c7e108ba5b9946a0f50e0cc082f9b
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Anton-Protopopov/bpf-add-new-map-ops-map_pressure/20230531-190704
        git checkout 025cc7c86c6c7e108ba5b9946a0f50e0cc082f9b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=sh olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash kernel/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306010837.mGhA199K-lkp@intel.com/

All errors (new ones prefixed by >>):

   kernel/bpf/hashtab.c: In function 'htab_map_pressure':
>> kernel/bpf/hashtab.c:189:24: error: implicit declaration of function '__percpu_counter_sum'; did you mean 'percpu_counter_sum'? [-Werror=implicit-function-declaration]
     189 |                 return __percpu_counter_sum(&htab->pcount);
         |                        ^~~~~~~~~~~~~~~~~~~~
         |                        percpu_counter_sum
   cc1: some warnings being treated as errors


vim +189 kernel/bpf/hashtab.c

   183	
   184	static u32 htab_map_pressure(const struct bpf_map *map)
   185	{
   186		struct bpf_htab *htab = container_of(map, struct bpf_htab, map);
   187	
   188		if (htab->use_percpu_counter)
 > 189			return __percpu_counter_sum(&htab->pcount);
   190		return atomic_read(&htab->count);
   191	}
   192	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki