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-rc6 next-20220512] [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-compatible-for-scl3300/20220513-000857 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg config: hexagon-randconfig-r041-20220512 (https://download.01.org/0day-ci/archive/20220513/202205130824.ObRAkagG-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 9519dacab7b8afd537811fc2abaceb4d14f4e16a) 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/15579266e58d7cdf4ff8e7ad7a4fa30a0bd3a589 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review LI-Qingwu/iio-accel-sca3300-add-compatible-for-scl3300/20220513-000857 git checkout 15579266e58d7cdf4ff8e7ad7a4fa30a0bd3a589 # 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=hexagon 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:288:54: warning: & has lower precedence than ==; == will be evaluated first [-Wparentheses] if (sca_data->chip->avail_modes_table[i] == reg_val&0x03) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ drivers/iio/accel/sca3300.c:288:54: note: place parentheses around the '==' expression to silence this warning if (sca_data->chip->avail_modes_table[i] == reg_val&0x03) ^ ( ) drivers/iio/accel/sca3300.c:288:54: note: place parentheses around the & expression to evaluate it first if (sca_data->chip->avail_modes_table[i] == reg_val&0x03) ^ ( ) 1 warning generated. vim +288 drivers/iio/accel/sca3300.c 276 277 static int sca3300_get_op_mode(struct sca3300_data *sca_data, int *index) 278 { 279 int reg_val; 280 int ret; 281 int i; 282 283 ret = sca3300_read_reg(sca_data, SCA3300_REG_MODE, ®_val); 284 if (ret) 285 return ret; 286 287 for (i = 0; i < sca_data->chip->num_avail_modes; i++) { > 288 if (sca_data->chip->avail_modes_table[i] == reg_val&0x03) 289 break; 290 } 291 292 if (i >= sca_data->chip->num_avail_modes) 293 return -EINVAL; 294 295 *index = i; 296 return 0; 297 } 298 -- 0-DAY CI Kernel Test Service https://01.org/lkp
