reproduce (this is a W=1 build): git checkout v6.12-rc3 b4 shazam https://lore.kernel.org/r/20241017151709.2713048-9-willy@infradead.org # 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 fs/ecryptfs/