Re: [PATCH v3 2/2] iio: light: Add support for TI OPT4060 color sensor

[kernel test robot]

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	

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