Hi Haiyue, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on v5.12-rc2] [also build test WARNING on next-20210315] [cannot apply to tnguy-next-queue/dev-queue] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Haiyue-Wang/Enable-Intel-VF-flow... base: a38fd8748464831584a19438cbb3082b5a2dab15 config: powerpc-randconfig-r023-20210315 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project a28facba1ccdc957f386b7753f4958307f1bfde8) 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 powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://github.com/0day-ci/linux/commit/c7d34ec95d9eda2d29b24cec2d98e9b2b... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Haiyue-Wang/Enable-Intel-VF-flow-director-with-DDP/20210309-112812 git checkout c7d34ec95d9eda2d29b24cec2d98e9b2b887cb1f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): vim +399 drivers/net/ethernet/intel/iavf/iavf_fdir.c 390 391 /** 392 * iavf_fdir_fltr - find filter with location 393 * @adapter: pointer to the VF adapter structure 394 * @loc: location to find. 395 * 396 * Returns pointer to Flow Director filter if found or null 397 */ 398 struct iavf_fdir_fltr *iavf_find_fdir_fltr_by_loc(struct iavf_adapter *adapter, u32 loc) 400 struct iavf_fdir_fltr *rule; 401 402 list_for_each_entry(rule, &adapter->fdir_list_head, list) 403 if (rule->loc == loc) 404 return rule; 405 406 return NULL; 407 } 408 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org