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/tnguy/net-queue.git/commit/?id=a4bf8e3b34147889963e4c46d1e7916f7157b784
        git remote add tnguy-net-queue https://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue.git
        git fetch --no-tags tnguy-net-queue dev-queue
        git checkout a4bf8e3b34147889963e4c46d1e7916f7157b784
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-8.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-8.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/cxl/