[GIT PULL] fsverity updates for 6.6

[Eric Biggers]

The following changes since commit 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5:

  Linux 6.5-rc1 (2023-07-09 13:53:13 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/fs/fsverity/linux.git tags/fsverity-for-linus

for you to fetch changes up to 919dc320956ea353a7fb2d84265195ad5ef525ac:

  fsverity: skip PKCS#7 parser when keyring is empty (2023-08-20 10:33:43 -0700)

----------------------------------------------------------------

Several cleanups for fs/verity/, including two commits that make the
builtin signature support more cleanly separated from the base feature.

----------------------------------------------------------------
Eric Biggers (4):
      fsverity: explicitly check that there is no algorithm 0
      fsverity: simplify handling of errors during initcall
      fsverity: move sysctl registration out of signature.c
      fsverity: skip PKCS#7 parser when keyring is empty

 fs/verity/fsverity_private.h | 12 +++----
 fs/verity/hash_algs.c        |  8 +++++
 fs/verity/init.c             | 56 ++++++++++++++++++++------------
 fs/verity/open.c             | 18 +++--------
 fs/verity/signature.c        | 77 ++++++++++++++------------------------------
 fs/verity/verify.c           | 11 ++-----
 6 files changed, 79 insertions(+), 103 deletions(-)