Hi Javier, kernel test robot noticed the following build warnings: [auto build test WARNING on ceab669fdf7b7510b4e4997b33d6f66e433a96db] url: https://github.com/intel-lab-lkp/linux/commits/Javier-Carrasco/dt-bindings-iio-light-veml6030-add-veml3235/20241024-030144 base: ceab669fdf7b7510b4e4997b33d6f66e433a96db patch link: https://lore.kernel.org/r/20241023-veml3235-v3-2-8490f2622f9a%40gmail.com patch subject: [PATCH v3 2/2] iio: light: add support for veml3235 config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20241025/202410251610.kB7u6xMJ-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241025/202410251610.kB7u6xMJ-lkp@xxxxxxxxx/reproduce) 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/202410251610.kB7u6xMJ-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/iio/light/veml3235.c: In function 'veml3235_set_it': >> drivers/iio/light/veml3235.c:148:26: warning: variable 'it_idx' set but not used [-Wunused-but-set-variable] 148 | int ret, new_it, it_idx; | ^~~~~~ drivers/iio/light/veml3235.c: In function 'veml3235_set_gain': >> drivers/iio/light/veml3235.c:191:28: warning: variable 'gain_idx' set but not used [-Wunused-but-set-variable] 191 | int ret, new_gain, gain_idx; | ^~~~~~~~ vim +/it_idx +148 drivers/iio/light/veml3235.c 144 145 static int veml3235_set_it(struct iio_dev *indio_dev, int val, int val2) 146 { 147 struct veml3235_data *data = iio_priv(indio_dev); > 148 int ret, new_it, it_idx; 149 150 if (val) 151 return -EINVAL; 152 153 switch (val2) { 154 case 50000: 155 new_it = 0x00; 156 it_idx = 4; 157 break; 158 case 100000: 159 new_it = 0x01; 160 it_idx = 3; 161 break; 162 case 200000: 163 new_it = 0x02; 164 it_idx = 2; 165 break; 166 case 400000: 167 new_it = 0x03; 168 it_idx = 1; 169 break; 170 case 800000: 171 new_it = 0x04; 172 it_idx = 0; 173 break; 174 default: 175 return -EINVAL; 176 } 177 178 ret = regmap_field_write(data->rf.it, new_it); 179 if (ret) { 180 dev_err(data->dev, 181 "failed to update integration time: %d\n", ret); 182 return ret; 183 } 184 185 return 0; 186 } 187 188 static int veml3235_set_gain(struct iio_dev *indio_dev, int val, int val2) 189 { 190 struct veml3235_data *data = iio_priv(indio_dev); > 191 int ret, new_gain, gain_idx; 192 193 if (val2 != 0) 194 return -EINVAL; 195 196 switch (val) { 197 case 1: 198 new_gain = 0x00; 199 gain_idx = 3; 200 break; 201 case 2: 202 new_gain = 0x01; 203 gain_idx = 2; 204 break; 205 case 4: 206 new_gain = 0x03; 207 gain_idx = 1; 208 break; 209 case 8: 210 new_gain = 0x07; 211 gain_idx = 0; 212 break; 213 default: 214 return -EINVAL; 215 } 216 217 ret = regmap_field_write(data->rf.gain, new_gain); 218 if (ret) { 219 dev_err(data->dev, "failed to set gain: %d\n", ret); 220 return ret; 221 } 222 223 return 0; 224 } 225 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
