Hi Icenowy, I love your patch! Yet something to improve: [auto build test ERROR on robh/for-next] [also build test ERROR on drm-intel/for-linux-next drm-tip/drm-tip linus/master v5.14-rc3 next-20210730] [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/Icenowy-Zheng/Add-simple-dbi-tinydrm-driver/20210802-144017 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 10.3.0 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/257b1975790880588d1ec7cfec4ebde54d23d63a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Icenowy-Zheng/Add-simple-dbi-tinydrm-driver/20210802-144017 git checkout 257b1975790880588d1ec7cfec4ebde54d23d63a # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross O=build_dir ARCH=m68k SHELL=/bin/bash drivers/gpu/drm/tiny/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): In file included from include/linux/kallsyms.h:14, from include/linux/ftrace.h:12, from include/linux/kprobes.h:29, from include/linux/kgdb.h:19, from include/linux/fb.h:5, from include/linux/backlight.h:13, from drivers/gpu/drm/tiny/simple-dbi.c:9: >> include/linux/module.h:244:1: error: expected ',' or ';' before 'extern' 244 | extern typeof(name) __mod_##type##__##name##_device_table \ | ^~~~~~ drivers/gpu/drm/tiny/simple-dbi.c:148:1: note: in expansion of macro 'MODULE_DEVICE_TABLE' 148 | MODULE_DEVICE_TABLE(of, simple_dbi_of_match); | ^~~~~~~~~~~~~~~~~~~ vim +244 include/linux/module.h ^1da177e4c3f41 Linus Torvalds 2005-04-16 240 cff26a51da5d20 Rusty Russell 2014-02-03 241 #ifdef MODULE cff26a51da5d20 Rusty Russell 2014-02-03 242 /* Creates an alias so file2alias.c can find device table. */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 243 #define MODULE_DEVICE_TABLE(type, name) \ 0bf8bf50eddc75 Matthias Kaehlcke 2017-07-24 @244 extern typeof(name) __mod_##type##__##name##_device_table \ cff26a51da5d20 Rusty Russell 2014-02-03 245 __attribute__ ((unused, alias(__stringify(name)))) cff26a51da5d20 Rusty Russell 2014-02-03 246 #else /* !MODULE */ cff26a51da5d20 Rusty Russell 2014-02-03 247 #define MODULE_DEVICE_TABLE(type, name) cff26a51da5d20 Rusty Russell 2014-02-03 248 #endif ^1da177e4c3f41 Linus Torvalds 2005-04-16 249 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org