Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

Pull key handling fixes from James Morris:
 "A minor fix and documentation updates"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  KEYS: Add documentation for asymmetric keyring restrictions
  KEYS: DH: validate __spare field
  modsign: add markers to endif-statements in certs/Makefile