Hi Matti, kernel test robot noticed the following build warnings: [auto build test WARNING on 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0] url: https://github.com/intel-lab-lkp/linux/commits/Matti-Vaittinen/bu27034-ROHM-BU27034NUC-to-BU27034ANUC/20240610-180426 base: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0 patch link: https://lore.kernel.org/r/5e88c7b7b0389c6c011f15e05e065791f7561cf5.1718013518.git.mazziesaccount%40gmail.com patch subject: [PATCH 2/2] iio: bu27034: Add a read only HWARDWAREGAIN config: i386-buildonly-randconfig-004-20240610 (https://download.01.org/0day-ci/archive/20240610/202406102113.7w2Td20S-lkp@xxxxxxxxx/config) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240610/202406102113.7w2Td20S-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/202406102113.7w2Td20S-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/iio/light/rohm-bu27034.c:1057:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough] 1057 | default: | ^ drivers/iio/light/rohm-bu27034.c:1057:2: note: insert '__attribute__((fallthrough));' to silence this warning 1057 | default: | ^ | __attribute__((fallthrough)); drivers/iio/light/rohm-bu27034.c:1057:2: note: insert 'break;' to avoid fall-through 1057 | default: | ^ | break; 1 warning generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for REGMAP_SPI Depends on [n]: SPI [=n] Selected by [y]: - AD9739A [=y] && IIO [=y] && (SPI [=n] || COMPILE_TEST [=y]) vim +1057 drivers/iio/light/rohm-bu27034.c e52afbd61039e2 Matti Vaittinen 2023-03-31 1042 d47b9b84292706 Matti Vaittinen 2023-06-13 1043 static int bu27034_write_raw_get_fmt(struct iio_dev *indio_dev, d47b9b84292706 Matti Vaittinen 2023-06-13 1044 struct iio_chan_spec const *chan, d47b9b84292706 Matti Vaittinen 2023-06-13 1045 long mask) d47b9b84292706 Matti Vaittinen 2023-06-13 1046 { 6196c88810e86d Matti Vaittinen 2024-06-10 1047 struct bu27034_data *data = iio_priv(indio_dev); d47b9b84292706 Matti Vaittinen 2023-06-13 1048 d47b9b84292706 Matti Vaittinen 2023-06-13 1049 switch (mask) { d47b9b84292706 Matti Vaittinen 2023-06-13 1050 case IIO_CHAN_INFO_SCALE: d47b9b84292706 Matti Vaittinen 2023-06-13 1051 return IIO_VAL_INT_PLUS_NANO; d47b9b84292706 Matti Vaittinen 2023-06-13 1052 case IIO_CHAN_INFO_INT_TIME: d47b9b84292706 Matti Vaittinen 2023-06-13 1053 return IIO_VAL_INT_PLUS_MICRO; 6196c88810e86d Matti Vaittinen 2024-06-10 1054 case IIO_CHAN_INFO_HARDWAREGAIN: 6196c88810e86d Matti Vaittinen 2024-06-10 1055 dev_dbg(data->dev, 6196c88810e86d Matti Vaittinen 2024-06-10 1056 "HARDWAREGAIN is read-only, use scale to set\n"); d47b9b84292706 Matti Vaittinen 2023-06-13 @1057 default: d47b9b84292706 Matti Vaittinen 2023-06-13 1058 return -EINVAL; d47b9b84292706 Matti Vaittinen 2023-06-13 1059 } d47b9b84292706 Matti Vaittinen 2023-06-13 1060 } d47b9b84292706 Matti Vaittinen 2023-06-13 1061 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
