Hi "José, Thank you for the patch! Yet something to improve: [auto build test ERROR on hid/for-next] [also build test ERROR on v5.13-rc1] [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] url: https://github.com/0day-ci/linux/commits/Jos-Exp-sito/HID-magicmouse-register-power-supply/20210512-022327 base: https://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git for-next config: csky-randconfig-r023-20210512 (attached as .config) compiler: csky-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/701f395a5566b6d2fd3a78389983237668902998 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jos-Exp-sito/HID-magicmouse-register-power-supply/20210512-022327 git checkout 701f395a5566b6d2fd3a78389983237668902998 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=csky If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "usb_alloc_coherent" [drivers/hid/hid-magicmouse.ko] undefined! >> ERROR: modpost: "usb_alloc_urb" [drivers/hid/hid-magicmouse.ko] undefined! >> ERROR: modpost: "usb_submit_urb" [drivers/hid/hid-magicmouse.ko] undefined! >> ERROR: modpost: "usb_free_urb" [drivers/hid/hid-magicmouse.ko] undefined! >> ERROR: modpost: "usb_free_coherent" [drivers/hid/hid-magicmouse.ko] undefined! >> ERROR: modpost: "usb_kill_urb" [drivers/hid/hid-magicmouse.ko] undefined! --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org