rt2x00: Fix sparse warning on nested container_of()

[linux-2.6] / drivers / net / wireless / rt2x00 / rt2x00usb.h

diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.h b/drivers/net/wireless/rt2x00/rt2x00usb.h
index b1187c812e7f9d145a9ad12626cedf4b075b2274..aad794adf52cc87632df22fe3c011f89391d6da8 100644 (file)
--- a/drivers/net/wireless/rt2x00/rt2x00usb.h
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.h
@@ -26,6 +26,12 @@
 #ifndef RT2X00USB_H
 #define RT2X00USB_H
 
+#define to_usb_device_intf(d) \
+({ \
+       struct usb_interface *intf = to_usb_interface(d); \
+       interface_to_usbdev(intf); \
+})
+
 /*
  * This variable should be used with the
  * usb_driver structure initialization.