Hi Martin, I love your patch! Yet something to improve: [auto build test ERROR on robh/for-next] [also build test ERROR on linus/master v6.2 next-20230301] [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/Martin-Za-ovi/dt-bindings-wiegand-add-Wiegand-controller-common-properties/20230301-223030 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20230301142835.19614-3-m.zatovic1%40gmail.com patch subject: [PATCHv3 2/4] wiegand: add Wiegand bus driver config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20230302/202303020615.0F00suDa-lkp@xxxxxxxxx/config) compiler: sh4-linux-gcc (GCC) 12.1.0 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/intel-lab-lkp/linux/commit/c62b833f42989e355d82cd20b7803e0228e33792 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Martin-Za-ovi/dt-bindings-wiegand-add-Wiegand-controller-common-properties/20230301-223030 git checkout c62b833f42989e355d82cd20b7803e0228e33792 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sh olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash drivers/wiegand/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303020615.0F00suDa-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/wiegand/wiegand.c:441:27: error: initialization of 'void (*)(struct device *)' from incompatible pointer type 'int (*)(struct device *)' [-Werror=incompatible-pointer-types] 441 | .remove = wiegand_remove, | ^~~~~~~~~~~~~~ drivers/wiegand/wiegand.c:441:27: note: (near initialization for 'wiegand_bus_type.remove') cc1: some warnings being treated as errors vim +441 drivers/wiegand/wiegand.c 436 437 static struct bus_type wiegand_bus_type = { 438 .name = "wiegand", 439 .match = wiegand_match_device, 440 .probe = wiegand_probe, > 441 .remove = wiegand_remove, 442 }; 443 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests