diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index e501a03d6c70..1622ad35428d 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -738,6 +738,7 @@ static int driver_resume(struct usb_interface *intf)
 	return 0;
 }
 
+#ifdef CONFIG_PM
 /* The following routines apply to the entire device, not interfaces */
 void usbfs_notify_suspend(struct usb_device *udev)
 {
@@ -756,6 +757,7 @@ void usbfs_notify_resume(struct usb_device *udev)
 	}
 	mutex_unlock(&usbfs_mutex);
 }
+#endif
 
 struct usb_driver usbfs_driver = {
 	.name =		"usbfs",