smb3: remind users that witness protocol is experimental

warn_once when using the witness protocol that it is experimental

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Samuel Cabrero <scabrero@suse.de>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
This commit is contained in:
Steve French 2020-12-14 20:15:12 -06:00
commit dd538034f8