diff --git a/[refs] b/[refs]
index 89c1def02f49..57dd5aef9344 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f2080fa3c6098dedfb9b599bdaedd07be2ea4646
+refs/heads/master: 9dcc0e58e2913f7e6ffba64c27fe5c2f2c7b845c
diff --git a/trunk/drivers/infiniband/hw/ipath/ipath_file_ops.c b/trunk/drivers/infiniband/hw/ipath/ipath_file_ops.c
index bd14eb1e6529..ada267e41f6c 100644
--- a/trunk/drivers/infiniband/hw/ipath/ipath_file_ops.c
+++ b/trunk/drivers/infiniband/hw/ipath/ipath_file_ops.c
@@ -1224,6 +1224,10 @@ static unsigned int ipath_poll(struct file *fp,
 
 	if (tail == head) {
 		set_bit(IPATH_PORT_WAITING_RCV, &pd->port_flag);
+		if(dd->ipath_rhdrhead_intr_off) /* arm rcv interrupt */
+			(void)ipath_write_ureg(dd, ur_rcvhdrhead,
+					       dd->ipath_rhdrhead_intr_off
+					       | head, pd->port_port);
 		poll_wait(fp, &pd->port_wait, pt);
 
 		if (test_bit(IPATH_PORT_WAITING_RCV, &pd->port_flag)) {