Merge tag '4.14-smb3-multidialect-support-and-fixes-for-stable' of git://git.samba...

Pull cifs fixes from Steve French:
 "Convert default dialect to smb2.1 or later to allow connecting to
  Windows 7 for example, also includes some fixes for stable"

* tag '4.14-smb3-multidialect-support-and-fixes-for-stable' of git://git.samba.org/sfrench/cifs-2.6:
  Update version of cifs module
  cifs: hide unused functions
  SMB3: Add support for multidialect negotiate (SMB2.1 and later)
  CIFS/SMB3: Update documentation to reflect SMB3 and various changes
  cifs: check rsp for NULL before dereferencing in SMB2_open