Merge branch 'topic/uek-4.1/ofed.rds-p2' into topic/uek-4.1/ofed

Merge branch 'topic/uek-4.1/ofed.rds-p2' into topic/uek-4.1/ofed

* topic/uek-4.1/ofed.rds-p2:
  RDS-TCP: Reset tcp callbacks if re-using an outgoing socket in rds_tcp_accept_one()
  RDS: Invoke ->laddr_check() in rds_bind() for explicitly bound transports.
  RDS: rds_conn_lookup() should factor in the struct net for a match
  RDS: Use a single TCP socket for both send and receive.
  RDS-TCP: Do not bloat sndbuf/rcvbuf in rds_tcp_tune
  RDS-TCP: Set up MSG_MORE and MSG_SENDPAGE_NOTLAST as appropriate in rds_tcp_
  Revert "rds_rdma: rds_sendmsg should return EAGAIN if connection not setup"
  rds: make sure base connection is up on both sides
  rds_ib/iw: fixed big endianness conversion issue for dp->dp_ack_seq
  RDS: fix race condition when sending a message on unbound socket.
  RDS: verify the underlying transport exists before creating a connection