Hi Marcelo, kernel test robot noticed the following build warnings: [auto build test WARNING on broonie-spi/for-next] [also build test WARNING on jic23-iio/togreg linus/master v6.10-rc2 next-20240605] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Marcelo-Schmitt/spi-Add-SPI-mode-bit-for-MOSI-idle-state-configuration/20240605-231912 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next patch link: https://lore.kernel.org/r/e340f48324b0ea3afb1c715cb2fba184c27112a1.1717539384.git.marcelo.schmitt%40analog.com patch subject: [PATCH v3 6/6] iio: adc: Add support for AD4000 config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20240606/202406060440.I43MwC4B-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240606/202406060440.I43MwC4B-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/202406060440.I43MwC4B-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/iio/adc/ad4000.c: In function 'ad4000_single_conversion': >> drivers/iio/adc/ad4000.c:375:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 375 | int ret; | ^~~ vim +/ret +375 drivers/iio/adc/ad4000.c 369 370 static int ad4000_single_conversion(struct iio_dev *indio_dev, 371 const struct iio_chan_spec *chan, int *val) 372 { 373 struct ad4000_state *st = iio_priv(indio_dev); 374 u32 sample; > 375 int ret; 376 377 ret = ad4000_convert_and_acquire(st); 378 379 if (chan->scan_type.storagebits > 16) 380 sample = be32_to_cpu(st->scan.data.sample_buf32); 381 else 382 sample = be16_to_cpu(st->scan.data.sample_buf16); 383 384 switch (chan->scan_type.realbits) { 385 case 16: 386 break; 387 case 18: 388 sample = FIELD_GET(AD4000_18BIT_MSK, sample); 389 break; 390 case 20: 391 sample = FIELD_GET(AD4000_20BIT_MSK, sample); 392 break; 393 default: 394 return -EINVAL; 395 } 396 397 if (chan->scan_type.sign == 's') 398 *val = sign_extend32(sample, chan->scan_type.realbits - 1); 399 400 return IIO_VAL_INT; 401 } 402 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
