reproduce (this is a W=1 build): git remote add mszeredi-fuse https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git git fetch mszeredi-fuse for-next git checkout mszeredi-fuse/for-next b4 shazam https://lore.kernel.org/r/20240213001149.904176-3-stefanha@redhat.com # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=um olddefconfig make W=1 O=build_dir ARCH=um SHELL=/bin/bash