Hi Nam, kernel test robot noticed the following build errors: [auto build test ERROR on lee-leds/for-leds-next] [also build test ERROR on robh/for-next linus/master v6.14-rc5] [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/Nam-Tran/dt-bindings-leds-Add-LP5812-LED-driver-bindings/20250226-011634 base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/leds.git for-leds-next patch link: https://lore.kernel.org/r/20250225170601.21334-3-trannamatk%40gmail.com patch subject: [PATCH v2 2/2] leds: add new LED driver for TI LP5812 config: x86_64-randconfig-006-20250303 (https://download.01.org/0day-ci/archive/20250304/202503040306.gen0Ui0l-lkp@xxxxxxxxx/config) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250304/202503040306.gen0Ui0l-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/202503040306.gen0Ui0l-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: i2c_register_driver >>> referenced by leds-lp5812.c:2313 (drivers/leds/leds-lp5812.c:2313) >>> vmlinux.o:(lp5812_driver_init) -- >> ld.lld: error: undefined symbol: i2c_del_driver >>> referenced by leds-lp5812.c:2313 (drivers/leds/leds-lp5812.c:2313) >>> vmlinux.o:(lp5812_driver_exit) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki