Hi Trevor, kernel test robot noticed the following build errors: [auto build test ERROR on 1ebd3850421749eb44bd040b249bd4db88d35b33] url: https://github.com/intel-lab-lkp/linux/commits/Trevor-Gamblin/dt-bindings-iio-adc-add-AD762x-AD796x-ADCs/20240905-031609 base: 1ebd3850421749eb44bd040b249bd4db88d35b33 patch link: https://lore.kernel.org/r/20240904-ad7625_r1-v4-2-78bc7dfb2b35%40baylibre.com patch subject: [PATCH v4 2/3] iio: adc: ad7625: add driver config: arm-randconfig-002-20240908 (https://download.01.org/0day-ci/archive/20240908/202409080658.vblJ5uZm-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 05f5a91d00b02f4369f46d076411c700755ae041) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240908/202409080658.vblJ5uZm-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/202409080658.vblJ5uZm-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>, old ones prefixed by <<): WARNING: modpost: missing MODULE_DESCRIPTION() in kernel/locking/test-ww_mutex.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/devfreq/governor_performance.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/devfreq/governor_userspace.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-core.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-master-aspeed.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-master-gpio.o >> ERROR: modpost: "pwm_round_waveform_might_sleep" [drivers/iio/adc/ad7625.ko] undefined! -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki