Hi Masahiro, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 71c5f03154ac1cb27423b984743ccc2f5d11d14d commit: def2fbffe62c00c330c7f41584a356001179c59c kconfig: allow symbols implied by y to become m date: 10 months ago config: arm-randconfig-r033-20201224 (attached as .config) compiler: arm-linux-gnueabi-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=def2fbffe62c00c330c7f41584a356001179c59c git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout def2fbffe62c00c330c7f41584a356001179c59c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All errors (new ones prefixed by >>): arm-linux-gnueabi-ld: drivers/gpu/drm/bridge/sil-sii8620.o: in function `sii8620_remove': sil-sii8620.c:(.text+0x186): undefined reference to `extcon_unregister_notifier' arm-linux-gnueabi-ld: drivers/gpu/drm/bridge/sil-sii8620.o: in function `sii8620_probe': sil-sii8620.c:(.text+0x24fa): undefined reference to `extcon_find_edev_by_node' >> arm-linux-gnueabi-ld: sil-sii8620.c:(.text+0x254e): undefined reference to >> `extcon_register_notifier' arm-linux-gnueabi-ld: drivers/gpu/drm/bridge/sil-sii8620.o: in function `sii8620_extcon_work': sil-sii8620.c:(.text+0x25da): undefined reference to `extcon_get_state' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
