iwlwifi: make use of conf_is_ht*() helpers

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 1ef9f58f..f3f6dba 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -522,9 +522,9 @@
 	 */
 
 	iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
-	if (priv->hw->conf.ht.channel_type == NL80211_CHAN_HT40MINUS)
+	if (conf_is_ht40_minus(&priv->hw->conf))
 		iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
-	else if(priv->hw->conf.ht.channel_type == NL80211_CHAN_HT40PLUS)
+	else if (conf_is_ht40_plus(&priv->hw->conf))
 		iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
 
 	/* If no above or below channel supplied disable FAT channel */
@@ -2546,7 +2546,7 @@
 	mutex_lock(&priv->mutex);
 	IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
 
-	priv->current_ht_config.is_ht = conf->ht.enabled;
+	priv->current_ht_config.is_ht = conf_is_ht(conf);
 
 	if (conf->radio_enabled && iwl_radio_kill_sw_enable_radio(priv)) {
 		IWL_DEBUG_MAC80211("leave - RF-KILL - waiting for uCode\n");