reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # install s390 cross compiling tool for clang build
        # apt-get install binutils-s390x-linux-gnu
        git remote add pengutronix https://git.pengutronix.de/git/linux-0-day
        git fetch --no-tags pengutronix mfe/v6.10/topic/touchscreen-axiom
        git checkout 24a4e77c6d046026ad63145d5a5a71bca496da45
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-20 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=s390 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-20 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/crypto/ drivers/infiniband/hw/erdma/ drivers/input/touchscreen/ drivers/misc/bcm-vk/ drivers/net/ethernet/hisilicon/hns/ drivers/net/ethernet/intel/fm10k/ drivers/net/ethernet/marvell/octeontx2/nic/ drivers/net/ethernet/pensando/ionic/ drivers/net/ethernet/qlogic/qede/ drivers/net/ethernet/sfc/ drivers/net/ethernet/sun/ drivers/net/ethernet/wangxun/libwx/