diff --git a/[refs] b/[refs]
index 55cef0dd3ae5..19243c8f1f27 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d7971051e4df825e0bc11b995e87bfe86355b8e5
+refs/heads/master: e5b33dc9d16053c2ae4c2c669cf008829530364b
diff --git a/trunk/include/linux/usb/serial.h b/trunk/include/linux/usb/serial.h
index ef9be7e1e190..1819b59aab2a 100644
--- a/trunk/include/linux/usb/serial.h
+++ b/trunk/include/linux/usb/serial.h
@@ -66,6 +66,7 @@
  *	port.
  * @flags: usb serial port flags
  * @write_wait: a wait_queue_head_t used by the port.
+ * @delta_msr_wait: modem-status-change wait queue
  * @work: work queue entry for the line discipline waking up.
  * @throttled: nonzero if the read urb is inactive to throttle the device
  * @throttle_req: nonzero if the tty wants to throttle us
@@ -112,6 +113,7 @@ struct usb_serial_port {
 
 	unsigned long		flags;
 	wait_queue_head_t	write_wait;
+	wait_queue_head_t	delta_msr_wait;
 	struct work_struct	work;
 	char			throttled;
 	char			throttle_req;