Hi LI, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on jic23-iio/togreg] [also build test WARNING on v5.18-rc5 next-20220504] [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/intel-lab-lkp/linux/commits/LI-Qingwu/iio-accel-sca3300-add-compitible-for-scl3300/20220504-213941 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg config: x86_64-randconfig-a016 (https://download.01.org/0day-ci/archive/20220505/202205050139.AiGvfpnI-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 363b3a645a1e30011cc8da624f13dac5fd915628) 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/intel-lab-lkp/linux/commit/7d890b741d98d981843f66de413c1420e3fa27d3 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review LI-Qingwu/iio-accel-sca3300-add-compitible-for-scl3300/20220504-213941 git checkout 7d890b741d98d981843f66de413c1420e3fa27d3 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/iio/accel/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/iio/accel/sca3300.c:152:28: warning: unused variable 'scl3300_scan_masks' [-Wunused-const-variable] static const unsigned long scl3300_scan_masks[] = { ^ 1 warning generated. vim +/scl3300_scan_masks +152 drivers/iio/accel/sca3300.c 151 > 152 static const unsigned long scl3300_scan_masks[] = { 153 BIT(SCA3300_ACC_X) | BIT(SCA3300_ACC_Y) | BIT(SCA3300_ACC_Z) | 154 BIT(SCA3300_TEMP) | 155 BIT(SCA3300_INCLI_X) | BIT(SCA3300_INCLI_Y) | BIT(SCA3300_INCLI_Z), 156 0 157 }; 158 -- 0-DAY CI Kernel Test Service https://01.org/lkp