ath_hal_getantennareduction
u_int ath_hal_getantennareduction(struct ath_hal *ah,
twiceAntennaReduction = ath_hal_getantennareduction(ah, chan, twiceAntennaGain);
ath_hal_getantennareduction(ah, chan, twiceAntennaGain);
ath_hal_getantennareduction(ah, chan, twiceAntennaGain);