Hi Per-Daniel, kernel test robot noticed the following build warnings: [auto build test WARNING on eca631b8fe808748d7585059c4307005ca5c5820] url: https://github.com/intel-lab-lkp/linux/commits/Per-Daniel-Olsson/dt-bindings-iio-light-Document-TI-OPT4060-RGBW-sensor/20241015-224128 base: eca631b8fe808748d7585059c4307005ca5c5820 patch link: https://lore.kernel.org/r/20241015143713.2017626-3-perdaniel.olsson%40axis.com patch subject: [PATCH v3 2/2] iio: light: Add support for TI OPT4060 color sensor config: x86_64-randconfig-161-20241017 (https://download.01.org/0day-ci/archive/20241017/202410170546.5rfqxnWM-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202410170546.5rfqxnWM-lkp@xxxxxxxxx/ smatch warnings: drivers/iio/light/opt4060.c:932 opt4060_volatile_reg() warn: always true condition '(reg >= 0) => (0-u32max >= 0)' vim +932 drivers/iio/light/opt4060.c 929 930 static bool opt4060_volatile_reg(struct device *dev, unsigned int reg) 931 { > 932 return (reg >= OPT4060_RED_MSB && reg <= OPT4060_CLEAR_LSB) || 933 (reg == OPT4060_RES_CTRL); 934 } 935 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki