IB/core: Don't warn on no SA support in event handler

Registering an event handler is done for a device. This device may have
one RoCE port (no SA cap) and one InfiniBand port (has SA cap).
Therefore, warning from the event handler about a specific port that
doesn't have SA cap is correct but pollutes the kernel log without a
need.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/core/multicast.c

@@ -780,7 +780,7 @@ static void mcast_event_handler(struct ib_event_handler *handler,
 	int index;
 
 	dev = container_of(handler, struct mcast_device, event_handler);
-	if (WARN_ON(!rdma_cap_ib_mcast(dev->device, event->element.port_num)))
+	if (!rdma_cap_ib_mcast(dev->device, event->element.port_num))
 		return;
 
 	index = event->element.port_num - dev->start_port;

drivers/infiniband/core/sa_query.c

@@ -450,7 +450,7 @@ static void ib_sa_event(struct ib_event_handler *handler, struct ib_event *event
 		struct ib_sa_port *port =
 			&sa_dev->port[event->element.port_num - sa_dev->start_port];
 
-		if (WARN_ON(!rdma_cap_ib_sa(handler->device, port->port_num)))
+		if (!rdma_cap_ib_sa(handler->device, port->port_num))
 			return;
 
 		spin_lock_irqsave(&port->ah_lock, flags);