Merge tag 'lsm-pr-20230420' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm

Pull lsm updates from Paul Moore:

 - Move the LSM hook comment blocks into security/security.c

   For many years the LSM hook comment blocks were located in a very odd
   place, include/linux/lsm_hooks.h, where they lived on their own,
   disconnected from both the function prototypes and definitions.

   In keeping with current kernel conventions, this moves all of these
   comment blocks to the top of the function definitions, transforming
   them into the kdoc format in the process. This should make it much
   easier to maintain these comments, which are the main source of LSM
   hook documentation.

   For the most part the comment contents were left as-is, although some
   glaring errors were corrected. Expect additional edits in the future
   as we slowly update and correct the comment blocks.

   This is the bulk of the diffstat.

 - Introduce LSM_ORDER_LAST

   Similar to how LSM_ORDER_FIRST is used to specify LSMs which should
   be ordered before "normal" LSMs, the LSM_ORDER_LAST is used to
   specify LSMs which should be ordered after "normal" LSMs.

   This is one of the prerequisites for transitioning IMA/EVM to a
   proper LSM.

 - Remove the security_old_inode_init_security() hook

   The security_old_inode_init_security() LSM hook only allows for a
   single xattr which is problematic both for LSM stacking and the
   IMA/EVM-as-a-LSM effort. This finishes the conversion over to the
   security_inode_init_security() hook and removes the single-xattr LSM
   hook.

 - Fix a reiserfs problem with security xattrs

   During the security_old_inode_init_security() removal work it became
   clear that reiserfs wasn't handling security xattrs properly so we
   fixed it.

* tag 'lsm-pr-20230420' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm: (32 commits)
  reiserfs: Add security prefix to xattr name in reiserfs_security_write()
  security: Remove security_old_inode_init_security()
  ocfs2: Switch to security_inode_init_security()
  reiserfs: Switch to security_inode_init_security()
  security: Remove integrity from the LSM list in Kconfig
  Revert "integrity: double check iint_cache was initialized"
  security: Introduce LSM_ORDER_LAST and set it for the integrity LSM
  device_cgroup: Fix typo in devcgroup_css_alloc description
  lsm: fix a badly named parameter in security_get_getsecurity()
  lsm: fix doc warnings in the LSM hook comments
  lsm: styling fixes to security/security.c
  lsm: move the remaining LSM hook comments to security/security.c
  lsm: move the io_uring hook comments to security/security.c
  lsm: move the perf hook comments to security/security.c
  lsm: move the bpf hook comments to security/security.c
  lsm: move the audit hook comments to security/security.c
  lsm: move the binder hook comments to security/security.c
  lsm: move the sysv hook comments to security/security.c
  lsm: move the key hook comments to security/security.c
  lsm: move the xfrm hook comments to security/security.c
  ...

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