ath9k: Make ANI CCK and OFDM error triggers band specific

The CCK and OFDM ANI error triggers are not mode specific but rather
band specific so just make use of the already available band from
ieee80211_conf.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath9k/ani.c

@@ -279,9 +279,8 @@ static void ath9k_ani_restart(struct ath_hal *ah)
 static void ath9k_hw_ani_ofdm_err_trigger(struct ath_hal *ah)
 {
 	struct ath_hal_5416 *ahp = AH5416(ah);
-	struct ath9k_channel *chan = ah->ah_curchan;
+	struct ieee80211_conf *conf = &ah->ah_sc->hw->conf;
 	struct ar5416AniState *aniState;
-	enum wireless_mode mode;
 	int32_t rssi;
 
 	if (!DO_ANI(ah))
@@ -336,8 +335,7 @@ static void ath9k_hw_ani_ofdm_err_trigger(struct ath_hal *ah)
 					     aniState->firstepLevel + 1);
 		return;
 	} else {
-		mode = ath9k_hw_chan2wmode(ah, chan);
-		if (mode == ATH9K_MODE_11G || mode == ATH9K_MODE_11B) {
+		if (conf->channel->band == IEEE80211_BAND_2GHZ) {
 			if (!aniState->ofdmWeakSigDetectOff)
 				ath9k_hw_ani_control(ah,
 				     ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
@@ -353,9 +351,8 @@ static void ath9k_hw_ani_ofdm_err_trigger(struct ath_hal *ah)
 static void ath9k_hw_ani_cck_err_trigger(struct ath_hal *ah)
 {
 	struct ath_hal_5416 *ahp = AH5416(ah);
-	struct ath9k_channel *chan = ah->ah_curchan;
+	struct ieee80211_conf *conf = &ah->ah_sc->hw->conf;
 	struct ar5416AniState *aniState;
-	enum wireless_mode mode;
 	int32_t rssi;
 
 	if (!DO_ANI(ah))
@@ -381,8 +378,7 @@ static void ath9k_hw_ani_cck_err_trigger(struct ath_hal *ah)
 			ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL,
 					     aniState->firstepLevel + 1);
 	} else {
-		mode = ath9k_hw_chan2wmode(ah, chan);
-		if (mode == ATH9K_MODE_11G || mode == ATH9K_MODE_11B) {
+		if (conf->channel->band == IEEE80211_BAND_2GHZ) {
 			if (aniState->firstepLevel > 0)
 				ath9k_hw_ani_control(ah,
 					     ATH9K_ANI_FIRSTEP_LEVEL, 0);