Hi Stanley, kernel test robot noticed the following build errors: [auto build test ERROR on chanwoo-extcon/extcon-next] [also build test ERROR on linus/master v6.5-rc7 next-20230823] [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/Stanley-Chang/dt-bindings-extcon-Add-Realtek-DHC-RTD-SoC-Type-C/20230822-183332 base: https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon.git extcon-next patch link: https://lore.kernel.org/r/20230822102846.4683-1-stanley_chang%40realtek.com patch subject: [PATCH v1 1/2] extcon: add Realtek DHC RTD SoC Type-C driver config: loongarch-randconfig-r053-20230823 (https://download.01.org/0day-ci/archive/20230823/202308232214.4VvP0avv-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20230823/202308232214.4VvP0avv-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/202308232214.4VvP0avv-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): loongarch64-linux-ld: drivers/extcon/extcon-rtk-type-c.o: in function `.L394': >> extcon-rtk-type-c.c:(.text+0x2a18): undefined reference to `usb_debug_root' >> loongarch64-linux-ld: extcon-rtk-type-c.c:(.text+0x2a1c): undefined reference to `usb_debug_root' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki