Pull fsverity updates from Eric Biggers:
 "Several cleanups for fs/verity/, including two commits that make the
  builtin signature support more cleanly separated from the base
  feature"
* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux:
  fsverity: skip PKCS#7 parser when keyring is empty
  fsverity: move sysctl registration out of signature.c
  fsverity: simplify handling of errors during initcall
  fsverity: explicitly check that there is no algorithm 0