reproduce (this is a W=1 build):
        git checkout next-20241030
        b4 shazam https://lore.kernel.org/r/41800674501340c4503cc3ad79affd19449a9ee1.1730313237.git.nicolinc@nvidia.com
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/iommu/iommufd/