USB: Add wakeup info to debugging messages

This patch (as1487) improves the usbcore debugging output for port
suspend and bus suspend, by stating whether or not remote wakeup is
enabled.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

drivers/usb/core/hcd.c

@@ -1959,8 +1959,9 @@ int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg)
 	int		status;
 	int		old_state = hcd->state;
 
-	dev_dbg(&rhdev->dev, "bus %s%s\n",
-			(PMSG_IS_AUTO(msg) ? "auto-" : ""), "suspend");
+	dev_dbg(&rhdev->dev, "bus %ssuspend, wakeup %d\n",
+			(PMSG_IS_AUTO(msg) ? "auto-" : ""),
+			rhdev->do_remote_wakeup);
 	if (HCD_DEAD(hcd)) {
 		dev_dbg(&rhdev->dev, "skipped %s of dead bus\n", "suspend");
 		return 0;
@@ -1995,8 +1996,8 @@ int hcd_bus_resume(struct usb_device *rhdev, pm_message_t msg)
 	int		status;
 	int		old_state = hcd->state;
 
-	dev_dbg(&rhdev->dev, "usb %s%s\n",
-			(PMSG_IS_AUTO(msg) ? "auto-" : ""), "resume");
+	dev_dbg(&rhdev->dev, "usb %sresume\n",
+			(PMSG_IS_AUTO(msg) ? "auto-" : ""));
 	if (HCD_DEAD(hcd)) {
 		dev_dbg(&rhdev->dev, "skipped %s of dead bus\n", "resume");
 		return 0;

drivers/usb/core/hub.c

@@ -2324,8 +2324,6 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
 	int		port1 = udev->portnum;
 	int		status;
 
-	// dev_dbg(hub->intfdev, "suspend port %d\n", port1);
-
 	/* enable remote wakeup when appropriate; this lets the device
 	 * wake up the upstream hub (including maybe the root hub).
 	 *
@@ -2371,8 +2369,9 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
 			status = 0;
 	} else {
 		/* device has up to 10 msec to fully suspend */
-		dev_dbg(&udev->dev, "usb %ssuspend\n",
-				(PMSG_IS_AUTO(msg) ? "auto-" : ""));
+		dev_dbg(&udev->dev, "usb %ssuspend, wakeup %d\n",
+				(PMSG_IS_AUTO(msg) ? "auto-" : ""),
+				udev->do_remote_wakeup);
 		usb_set_device_state(udev, USB_STATE_SUSPENDED);
 		msleep(10);
 	}