tree: https://github.com/Freescale/linux-fslc 5.4-2.3.x-imx head: a8a2b9ee4bec0b29d031324160b7f11af42a563a commit: e15e046b8fceb6ae7c94d0ad78ef00a7432efb7b [12917/16543] MLK-24334-1: drm/panel: Add support for WKS-101WX001-WCT parallel display config: m68k-allmodconfig (attached as .config) compiler: m68k-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/Freescale/linux-fslc/commit/e15e046b8fceb6ae7c94d0ad78... git remote add freescale-fslc https://github.com/Freescale/linux-fslc git fetch --no-tags freescale-fslc 5.4-2.3.x-imx git checkout e15e046b8fceb6ae7c94d0ad78ef00a7432efb7b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from arch/m68k/include/asm/io_mm.h:25, from arch/m68k/include/asm/io.h:8, from include/linux/fb.h:17, from include/drm/drm_crtc.h:31, from drivers/gpu/drm/panel/panel-wks-101wx001.c:18: arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsb': arch/m68k/include/asm/raw_io.h:83:7: warning: variable '__w' set but not used [-Wunused-but-set-variable] 83 | ({u8 __w, __v = (b); u32 _addr = ((u32) (addr)); \ | ^~~ arch/m68k/include/asm/raw_io.h:430:3: note: in expansion of macro 'rom_out_8' 430 | rom_out_8(port, *buf++); | ^~~~~~~~~ arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsw': arch/m68k/include/asm/raw_io.h:86:8: warning: variable '__w' set but not used [-Wunused-but-set-variable] 86 | ({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \ | ^~~ arch/m68k/include/asm/raw_io.h:448:3: note: in expansion of macro 'rom_out_be16' 448 | rom_out_be16(port, *buf++); | ^~~~~~~~~~~~ arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsw_swapw': arch/m68k/include/asm/raw_io.h:90:8: warning: variable '__w' set but not used [-Wunused-but-set-variable] 90 | ({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \ | ^~~ arch/m68k/include/asm/raw_io.h:466:3: note: in expansion of macro 'rom_out_le16' 466 | rom_out_le16(port, *buf++); | ^~~~~~~~~~~~ In file included from drivers/gpu/drm/panel/panel-wks-101wx001.c:10: drivers/gpu/drm/panel/panel-wks-101wx001.c: At top level: 216 | MODULE_DEVICE_TABLE(of, platform_of_match); | ^~~~~~~~~~~~~~~~~ include/linux/module.h:227:15: note: in definition of macro 'MODULE_DEVICE_TABLE' 227 | extern typeof(name) __mod_##type##__##name##_device_table \ | ^~~~ 227 | extern typeof(name) __mod_##type##__##name##_device_table \ | ^~~~~~ drivers/gpu/drm/panel/panel-wks-101wx001.c:216:1: note: in expansion of macro 'MODULE_DEVICE_TABLE' 216 | MODULE_DEVICE_TABLE(of, platform_of_match); | ^~~~~~~~~~~~~~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for NEED_MULTIPLE_NODES Depends on DISCONTIGMEM || NUMA Selected by - SINGLE_MEMORY_CHUNK && MMU vim +/platform_of_match +216 drivers/gpu/drm/panel/panel-wks-101wx001.c 211 212 static const struct of_device_id wks_of_match[] = { 213 { .compatible = "wks,101wx001", }, 214 { /* sentinel */ } 215 }; 217 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org