tree: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next head: 9b9f1e670d2c61c676039474fd2d98ca0a54ff75 commit: 19d8ebde288924d3385763832ea99396c8b4fe8c [32/33] hwmon: (powr1220) Upgrade driver to support hwmon info infrastructure config: hexagon-randconfig-r032-20220123 (https://download.01.org/0day-ci/archive/20220124/202201241605.pf50OsUm-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 9006bf424847bf91f0a624ffc27ad165c7b804c4) 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://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git/... git remote add groeck-staging https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git git fetch --no-tags groeck-staging hwmon-next git checkout 19d8ebde288924d3385763832ea99396c8b4fe8c # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/hwmon/ 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 >>): default: ^ drivers/hwmon/powr1220.c:185:2: note: insert 'break;' to avoid fall-through default: ^ break; 1 warning generated. vim +185 drivers/hwmon/powr1220.c 169 170 static umode_t 171 powr1220_is_visible(const void *data, enum hwmon_sensor_types type, u32 172 attr, int channel) 173 { 174 switch (type) { 175 case hwmon_in: 176 switch (attr) { 177 case hwmon_in_input: 178 case hwmon_in_highest: 179 case hwmon_in_label: 180 return 0444; 181 default: 182 break; 183 } 184 186 break; 187 } 188 189 return 0; 190 } 191 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org