1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
index 9f08a584d707..0b9f1e598e3a 100644
--- a/include/linux/usb/usbnet.h
+++ b/include/linux/usb/usbnet.h
@@ -76,8 +76,23 @@ struct usbnet {
 #		define EVENT_LINK_CHANGE	11
 #		define EVENT_SET_RX_MODE	12
 #		define EVENT_NO_IP_ALIGN	13
+/* This one is special, as it indicates that the device is going away
+ * there are cyclic dependencies between tasklet, timer and bh
+ * that must be broken
+ */
+#		define EVENT_UNPLUG		31
 };
 
+static inline bool usbnet_going_away(struct usbnet *ubn)
+{
+	return test_bit(EVENT_UNPLUG, &ubn->flags);
+}
+
+static inline void usbnet_mark_going_away(struct usbnet *ubn)
+{
+	set_bit(EVENT_UNPLUG, &ubn->flags);
+}
+
 static inline struct usb_driver *driver_of(struct usb_interface *intf)
 {
 	return to_usb_driver(intf->dev.driver);