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: powerpc64-randconfig-r063-20241017 (https://download.01.org/0day-ci/archive/20241017/202410171258.CFrNPzC1-lkp@xxxxxxxxx/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241017/202410171258.CFrNPzC1-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/202410171258.CFrNPzC1-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/iio/light/opt4060.c:836:2: warning: label at end of compound statement is a C2x extension [-Wc2x-extensions] 836 | } | ^ 1 warning generated. vim +836 drivers/iio/light/opt4060.c 807 808 static int opt4060_write_event(struct iio_dev *indio_dev, 809 const struct iio_chan_spec *chan, 810 enum iio_event_type type, 811 enum iio_event_direction dir, 812 enum iio_event_info info, 813 int val, int val2) 814 { 815 struct opt4060_chip *chip = iio_priv(indio_dev); 816 817 switch (info) { 818 case IIO_EV_INFO_VALUE: 819 if (chan->type == IIO_INTENSITY && type == IIO_EV_TYPE_THRESH) { 820 u32 th_lo, th_hi; 821 822 if (opt4060_get_thresholds(chip, &th_lo, &th_hi)) 823 return -EFAULT; 824 if (dir == IIO_EV_DIR_FALLING) 825 th_lo = val; 826 else if (dir == IIO_EV_DIR_RISING) 827 th_hi = val; 828 if (opt4060_set_thresholds(chip, th_lo, th_hi)) 829 return -EFAULT; 830 return 0; 831 } 832 break; 833 case IIO_EV_INFO_PERIOD: 834 return opt4060_write_ev_period(chip, val, val2); 835 default: > 836 } 837 return -EINVAL; 838 } 839 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki