tree: https://github.com/0day-ci/linux/commits/UPDATE-20200819-003212/Tong-Zhan... head: 759d17f5a000b4795da8e96124ddf756c63c65f7 commit: 759d17f5a000b4795da8e96124ddf756c63c65f7 [1/1] tty: serial: earlycon dependency config: x86_64-randconfig-a006-20200818 compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 790878f291fa5dc58a1c560cb6cc76fd1bfd1c5a) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu git checkout 759d17f5a000b4795da8e96124ddf756c63c65f7 COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 randconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 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 >>): drivers/tty/serial/Kconfig:11: invalid statement drivers/tty/serial/Kconfig:12: invalid statement drivers/tty/serial/Kconfig:13:warning: ignoring unsupported character '.' drivers/tty/serial/Kconfig:13: unknown statement "Support" drivers/tty/serial/Kconfig:14:warning: ignoring unsupported character '.' drivers/tty/serial/Kconfig:14: unknown statement "the" drivers/tty/serial/Kconfig:15:warning: ignoring unsupported character '.' drivers/tty/serial/Kconfig:15: unknown statement "enabled" make[2]: *** [scripts/kconfig/Makefile:71: oldconfig] Error 1 make[1]: *** [Makefile:608: oldconfig] Error 2 make: *** [Makefile:185: __sub-make] Error 2 make: Target 'oldconfig' not remade because of errors. -- drivers/tty/serial/Kconfig:11: invalid statement drivers/tty/serial/Kconfig:12: invalid statement drivers/tty/serial/Kconfig:13:warning: ignoring unsupported character '.' drivers/tty/serial/Kconfig:13: unknown statement "Support" drivers/tty/serial/Kconfig:14:warning: ignoring unsupported character '.' drivers/tty/serial/Kconfig:14: unknown statement "the" drivers/tty/serial/Kconfig:15:warning: ignoring unsupported character '.' drivers/tty/serial/Kconfig:15: unknown statement "enabled" make[2]: *** [scripts/kconfig/Makefile:71: olddefconfig] Error 1 make[1]: *** [Makefile:608: olddefconfig] Error 2 make: *** [Makefile:185: __sub-make] Error 2 make: Target 'olddefconfig' not remade because of errors. # https://github.com/0day-ci/linux/commit/759d17f5a000b4795da8e96124ddf756c... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review UPDATE-20200819-003212/Tong-Zhang/tty-serial-fix-earlycon-dependency/20200818-012524 git checkout 759d17f5a000b4795da8e96124ddf756c63c65f7 vim +12 drivers/tty/serial/Kconfig ^1da177e4c3f41 drivers/serial/Kconfig Linus Torvalds 2005-04-16 5 ^1da177e4c3f41 drivers/serial/Kconfig Linus Torvalds 2005-04-16 6 menu "Serial drivers" 0244ad004a54e3 drivers/tty/serial/Kconfig Martin Schwidefsky 2013-08-30 7 depends on HAS_IOMEM ^1da177e4c3f41 drivers/serial/Kconfig Linus Torvalds 2005-04-16 8 9aac5887595b76 drivers/tty/serial/Kconfig Rob Herring 2014-04-18 9 config SERIAL_EARLYCON 9aac5887595b76 drivers/tty/serial/Kconfig Rob Herring 2014-04-18 10 bool 759d17f5a000b4 drivers/tty/serial/Kconfig Tong Zhang 2020-08-18 11 depends SERIAL_CORE 9aac5887595b76 drivers/tty/serial/Kconfig Rob Herring 2014-04-18 @12 help 9aac5887595b76 drivers/tty/serial/Kconfig Rob Herring 2014-04-18 13 Support for early consoles with the earlycon parameter. This enables 9aac5887595b76 drivers/tty/serial/Kconfig Rob Herring 2014-04-18 14 the console before standard serial driver is probed. The console is 9aac5887595b76 drivers/tty/serial/Kconfig Rob Herring 2014-04-18 15 enabled when early_param is processed. 9aac5887595b76 drivers/tty/serial/Kconfig Rob Herring 2014-04-18 16 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org