ath9k_hw: Define abstraction for tx desc access

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 268b598..c8a4558 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -107,7 +107,8 @@
 
 	/* NB: beacon's BufLen must be a multiple of 4 bytes */
 	ath9k_hw_filltxdesc(ah, ds, roundup(skb->len, 4),
-			    true, true, ds, bf->bf_buf_addr);
+			    true, true, ds, bf->bf_buf_addr,
+			    sc->beacon.beaconq);
 
 	memset(series, 0, sizeof(struct ath9k_11n_rate_series) * 4);
 	series[0].Tries = 1;