reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://github.com/LuBaolu/intel-iommu/commit/962e4c5599b0bd8a513c2f1ee3261373b8ca996a
        git remote add lubaolu-intel-iommu https://github.com/LuBaolu/intel-iommu.git
        git fetch --no-tags lubaolu-intel-iommu iommufd-io-pgfault-delivery-v4
        git checkout 962e4c5599b0bd8a513c2f1ee3261373b8ca996a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/misc/uacce/