Merge changes I6ad55d04,I63d57bc6,I42bb66ba,I73e29d98,Iaf0039c2,Ie71e8684,I5459ff41...

* changes:
  Warning in scanf string typing
  Smack: Verify read access on file open - v3
  Smack: bidirectional UDS connect check
  Smack: Correctly remove SMACK64TRANSMUTE attribute
  SMACK: Fix handling value==NULL in post setxattr
  bugfix patch for SMACK
  Smack: adds smackfs/ptrace interface
  Smack: unify all ptrace accesses in the smack
  Smack: fix the subject/object order in smack_ptrace_traceme()
  Minor improvement of 'smack_sb_kern_mount'
  smack: call WARN_ONCE() instead of calling audit_log_start()
  Smack: File receive audit correction
  Smack: Rationalize mount restrictions
  Smack: change rule cap check