rt2x00: correct "skb_buff" typo

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/wireless/rt2x00/rt2x00lib.h b/drivers/net/wireless/rt2x00/rt2x00lib.h
index 0bf10ff..108488d 100644
--- a/drivers/net/wireless/rt2x00/rt2x00lib.h
+++ b/drivers/net/wireless/rt2x00/rt2x00lib.h
@@ -91,7 +91,7 @@
 }
 
 static inline void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
-					  struct skb_buff *skb)
+					  struct sk_buff *skb)
 {
 }
 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */