rt2x00: simplify txstatus_fifo handling

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index c254d5a..af1d3ef 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -908,7 +908,7 @@
 	/*
 	 * FIFO for storing tx status reports between isr and tasklet.
 	 */
-	struct kfifo txstatus_fifo;
+	DECLARE_KFIFO_PTR(txstatus_fifo, u32);
 
 	/*
 	 * Tasklet for processing tx status reports (rt2800pci).