Hi Jiang, Thank you for the patch! Yet something to improve: [auto build test ERROR on bpf-next/master] url: https://github.com/0day-ci/linux/commits/Jiang-Wang/sockmap-add-sockmap-s... base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: mips-allmodconfig (attached as .config) compiler: mips-linux-gcc (GCC) 11.2.0 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 # https://github.com/0day-ci/linux/commit/94e7d17a013ee7fdeb46f5d790f066841... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jiang-Wang/sockmap-add-sockmap-support-for-unix-stream-socket/20210814-123038 git checkout 94e7d17a013ee7fdeb46f5d790f066841eec6459 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>, old ones prefixed by <<): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org