USB: serial: remove unused MSR-wait queue

Remove the port MSR-wait queue now that all drivers have been migrated
to the tty-port queue.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index c786ee7..b9b0f7b 100644 (file)
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -68,7 +68,6 @@
  *     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
@@ -116,7 +115,6 @@ 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;