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charset=us-ascii Content-Disposition: inline In-Reply-To: Hi Jonathan, kernel test robot noticed the following build errors: [auto build test ERROR on 0a686b9c4f847dc21346df8e56d5b119918fefef] url: https://github.com/intel-lab-lkp/linux/commits/Jonathan-Santos/dt-bindings-iio-adc-ad7768-1-add-new-supported-parts/20250813-145315 base: 0a686b9c4f847dc21346df8e56d5b119918fefef patch link: https://lore.kernel.org/r/f0c1cbc9c2994a90113788cad57df1f32f9db45e.1754617360.git.Jonathan.Santos%40analog.com patch subject: [PATCH 4/4] iio: adc: ad7768-1: add support for ADAQ776x-1 ADC Family config: hexagon-randconfig-002-20250814 (https://download.01.org/0day-ci/archive/20250814/202508140742.AhFMglnF-lkp@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 3769ce013be2879bf0b329c14a16f5cb766f26ce) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250814/202508140742.AhFMglnF-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202508140742.AhFMglnF-lkp@intel.com/ All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: rational_best_approximation >>> referenced by ad7768-1.c:554 (drivers/iio/adc/ad7768-1.c:554) >>> drivers/iio/adc/ad7768-1.o:(ad7768_configure_dig_fil) in archive vmlinux.a >>> referenced by ad7768-1.c:554 (drivers/iio/adc/ad7768-1.c:554) >>> drivers/iio/adc/ad7768-1.o:(ad7768_configure_dig_fil) in archive vmlinux.a -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki