reproduce (this is a W=1 build):
        git checkout 8e7460eac786c72f48c4e04ce9be692b939428ce
        b4 shazam https://lore.kernel.org/r/20251222-vkms-all-config-v3-18-ba42dc3fb9ff@bootlin.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/gpu/drm/vkms/