rds: make local functions/variables static

The RDS protocol has lots of functions that should be
declared static. rds_message_get/add_version_extension is
removed since it defined but never used.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc net/rds/connection.c
Simple merge

diff --cc net/rds/ib.c
Simple merge

diff --cc net/rds/ib.h
Simple merge

diff --cc net/rds/ib_rdma.c
Simple merge

diff --cc net/rds/ib_sysctl.c
Simple merge

diff --cc net/rds/iw.c
Simple merge

diff --cc net/rds/iw.h
Simple merge

diff --cc net/rds/iw_rdma.c
Simple merge

diff --cc net/rds/iw_sysctl.c
Simple merge

diff --cc net/rds/message.c
Simple merge

diff --cc net/rds/page.c
Simple merge

diff --cc net/rds/rdma_transport.c
Simple merge

diff --cc net/rds/rdma_transport.h
Simple merge

diff --cc net/rds/rds.h
Simple merge

diff --cc net/rds/recv.c
Simple merge

diff --cc net/rds/send.c
Simple merge

diff --cc net/rds/tcp.c
Simple merge

diff --cc net/rds/tcp.h
Simple merge

diff --cc net/rds/tcp_recv.c
Simple merge

diff --cc net/rds/tcp_send.c
Simple merge