-extern void ar5416Set11nAggrLast_20(struct ath_hal *ah, struct ath_tx_desc *ds);
-extern void ar5416Clr11nAggr_20(struct ath_hal *ah, struct ath_tx_desc *ds);
-extern void ar5416Set11nBurstDuration_20(struct ath_hal *ah, struct ath_tx_desc *ds,
+extern void ar5416Set11nAggrLast_20(struct ath_tx_desc *ds);
+extern void ar5416Clr11nAggr_20(struct ath_tx_desc *ds);
+extern void ar5416Set11nBurstDuration_20(struct ath_tx_desc *ds,