reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://github.com/rgushchin/linux/commit/c5d0efd9ad4acbcf666aed6e47e15d1feefa4ff0
        git remote add rgushchin https://github.com/rgushchin/linux.git
        git fetch --no-tags rgushchin memcontrol_v1.1
        git checkout c5d0efd9ad4acbcf666aed6e47e15d1feefa4ff0
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=openrisc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=openrisc SHELL=/bin/bash mm/