Hi Masahiro, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 2ab38c17aac10bf55ab3efde4c4db3893d8691d2 commit: def2fbffe62c00c330c7f41584a356001179c59c kconfig: allow symbols implied by y to become m date: 11 months ago config: arc-randconfig-r016-20201229 (attached as .config) compiler: arc-elf-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=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> All errors (new ones prefixed by >>): arc-elf-ld: drivers/gpu/drm/bridge/sil-sii8620.o: in function `sii8620_remove': sil-sii8620.c:(.text+0x88): undefined reference to `extcon_unregister_notifier' >> arc-elf-ld: sil-sii8620.c:(.text+0x88): undefined reference to >> `extcon_unregister_notifier' arc-elf-ld: drivers/gpu/drm/bridge/sil-sii8620.o: in function `sii8620_probe': >> sil-sii8620.c:(.text+0x1aac): undefined reference to >> `extcon_find_edev_by_node' >> arc-elf-ld: sil-sii8620.c:(.text+0x1aac): undefined reference to >> `extcon_find_edev_by_node' >> arc-elf-ld: sil-sii8620.c:(.text+0x1b10): undefined reference to >> `extcon_register_notifier' >> arc-elf-ld: sil-sii8620.c:(.text+0x1b10): undefined reference to >> `extcon_register_notifier' arc-elf-ld: drivers/gpu/drm/bridge/sil-sii8620.o: in function `sii8620_extcon_work': >> sil-sii8620.c:(.text+0x1b36): undefined reference to `extcon_get_state' >> arc-elf-ld: sil-sii8620.c:(.text+0x1b36): undefined reference to >> `extcon_get_state' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
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