reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://github.com/steev/linux/commit/c358c65925524fe1dfe962d59966a6aa01b5fc9b
        git remote add steev https://github.com/steev/linux
        git fetch --no-tags steev lenovo-x13s-linux-6.13.y
        git checkout c358c65925524fe1dfe962d59966a6aa01b5fc9b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=openrisc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=openrisc SHELL=/bin/bash kernel/sched/