reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/1f440db2fed03b1457aa6d15ef31cc1ce7e3e7c5
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Heiko-Carstens/s390-dis-Mark-non-NUL-terminated-character-arrays-with-__nonstring/20261002-124446
        git checkout 1f440db2fed03b1457aa6d15ef31cc1ce7e3e7c5

        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=s390 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash arch/s390/kernel/