reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/mic/linux.git/commit/?id=8dcfb7e52f844e73413d7f743945e135747a1048
        git remote add mic https://git.kernel.org/pub/scm/linux/kernel/git/mic/linux.git
        git fetch --no-tags mic next
        git checkout 8dcfb7e52f844e73413d7f743945e135747a1048

        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=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash security/