RDS: Remove stale function rds_send_get_message()

The only caller of rds_send_get_message() was
rds_iw_send_cq_comp_handler() which was removed as part of
commit dcdede04 ("RDS: Drop stale iWARP RDMA transport"),
so remove rds_send_get_message() for the same reason.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/rds/rds.h

@@ -789,8 +789,6 @@ void rds_send_drop_acked(struct rds_connection *conn, u64 ack,
 void rds_send_path_drop_acked(struct rds_conn_path *cp, u64 ack,
 			      is_acked_func is_acked);
 int rds_send_pong(struct rds_connection *conn, __be16 dport);
-struct rds_message *rds_send_get_message(struct rds_connection *,
-					 struct rm_rdma_op *);
 
 /* rdma.c */
 void rds_rdma_unuse(struct rds_sock *rs, u32 r_key, int force);

net/rds/send.c

@@ -565,42 +565,6 @@ __rds_send_complete(struct rds_sock *rs, struct rds_message *rm, int status)
 	/* No need to wake the app - caller does this */
 }
 
-/*
- * This is called from the IB send completion when we detect
- * a RDMA operation that failed with remote access error.
- * So speed is not an issue here.
- */
-struct rds_message *rds_send_get_message(struct rds_connection *conn,
-					 struct rm_rdma_op *op)
-{
-	struct rds_message *rm, *tmp, *found = NULL;
-	unsigned long flags;
-
-	spin_lock_irqsave(&conn->c_lock, flags);
-
-	list_for_each_entry_safe(rm, tmp, &conn->c_retrans, m_conn_item) {
-		if (&rm->rdma == op) {
-			atomic_inc(&rm->m_refcount);
-			found = rm;
-			goto out;
-		}
-	}
-
-	list_for_each_entry_safe(rm, tmp, &conn->c_send_queue, m_conn_item) {
-		if (&rm->rdma == op) {
-			atomic_inc(&rm->m_refcount);
-			found = rm;
-			break;
-		}
-	}
-
-out:
-	spin_unlock_irqrestore(&conn->c_lock, flags);
-
-	return found;
-}
-EXPORT_SYMBOL_GPL(rds_send_get_message);
-
 /*
  * This removes messages from the socket's list if they're on it.  The list
  * argument must be private to the caller, we must be able to modify it