diff --git a/net/rds/ib.c b/net/rds/ib.c
index ac6affa33ce7..412ff61e74fa 100644
--- a/net/rds/ib.c
+++ b/net/rds/ib.c
@@ -401,8 +401,8 @@ static void rds6_ib_ic_info(struct socket *sock, unsigned int len,
  * allowed to influence which paths have priority.  We could call userspace
  * asserting this policy "routing".
  */
-static int rds_ib_laddr_check(struct net *net, const struct in6_addr *addr,
-			      __u32 scope_id)
+static int rds_ib_laddr_check_cm(struct net *net, const struct in6_addr *addr,
+				 __u32 scope_id)
 {
 	int ret;
 	struct rdma_cm_id *cm_id;
@@ -487,6 +487,22 @@ static int rds_ib_laddr_check(struct net *net, const struct in6_addr *addr,
 	return ret;
 }
 
+static int rds_ib_laddr_check(struct net *net, const struct in6_addr *addr,
+			      __u32 scope_id)
+{
+	struct rds_ib_device *rds_ibdev = NULL;
+
+	if (ipv6_addr_v4mapped(addr)) {
+		rds_ibdev = rds_ib_get_device(addr->s6_addr32[3]);
+		if (rds_ibdev) {
+			rds_ib_dev_put(rds_ibdev);
+			return 0;
+		}
+	}
+
+	return rds_ib_laddr_check_cm(net, addr, scope_id);
+}
+
 static void rds_ib_unregister_client(void)
 {
 	ib_unregister_client(&rds_ib_client);
diff --git a/net/rds/ib.h b/net/rds/ib.h
index 8ef3178ed4d6..5ff346a1e8ba 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -381,6 +381,7 @@ void rds_ib_cm_connect_complete(struct rds_connection *conn,
 	__rds_ib_conn_error(conn, KERN_WARNING "RDS/IB: " fmt)
 
 /* ib_rdma.c */
+struct rds_ib_device *rds_ib_get_device(__be32 ipaddr);
 int rds_ib_update_ipaddr(struct rds_ib_device *rds_ibdev,
 			 struct in6_addr *ipaddr);
 void rds_ib_add_conn(struct rds_ib_device *rds_ibdev, struct rds_connection *conn);
diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c
index 2cfec252eeac..9594ea245f7f 100644
--- a/net/rds/ib_rdma.c
+++ b/net/rds/ib_rdma.c
@@ -43,7 +43,7 @@ struct workqueue_struct *rds_ib_mr_wq;
 
 static void rds_ib_odp_mr_worker(struct work_struct *work);
 
-static struct rds_ib_device *rds_ib_get_device(__be32 ipaddr)
+struct rds_ib_device *rds_ib_get_device(__be32 ipaddr)
 {
 	struct rds_ib_device *rds_ibdev;
 	struct rds_ib_ipaddr *i_ipaddr;