reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ca7d8b980b67f133317525c4273e144116ee1ae5
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout ca7d8b980b67f133317525c4273e144116ee1ae5
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.4.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=csky olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.4.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=csky SHELL=/bin/bash drivers/android/ drivers/gpu/drm/ drivers/hwmon/ drivers/input/serio/ drivers/input/touchscreen/ drivers/leds/ drivers/memory/ drivers/misc/ drivers/power/supply/ drivers/scsi/ drivers/spi/ drivers/thermal/ drivers/tty/serial/ fs/ kernel/