(curchan->band == IEEE80211_BAND_2GHZ) ?
                        CHANNEL_G : CHANNEL_A;
 
-               if (conf->ht.enabled) {
-                       if (conf->ht.channel_type == NL80211_CHAN_HT40PLUS ||
-                           conf->ht.channel_type == NL80211_CHAN_HT40MINUS)
+               if (conf_is_ht(conf)) {
+                       if (conf_is_ht40(conf))
                                sc->tx_chan_width = ATH9K_HT_MACMODE_2040;
 
                        sc->sc_ah->ah_channels[pos].chanmode =
                                                    conf->ht.channel_type);
                }
 
-               ath_update_chainmask(sc, conf->ht.enabled);
+               ath_update_chainmask(sc, conf_is_ht(conf));
 
                if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0) {
                        DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel\n");
 
         * above conditions.
         */
        if ((sc->hw->conf.channel->band == IEEE80211_BAND_2GHZ) &&
-           (sc->hw->conf.ht.enabled)) {
+           (conf_is_ht(&sc->hw->conf))) {
                u8 dot11rate = rate_table->info[rix].dot11rate;
                u8 phy = rate_table->info[rix].phy;
                if (i == 4 &&
                        tx_info, &is_probe, false);
 
        /* Check if aggregation has to be enabled for this tid */
-       if (hw->conf.ht.enabled) {
+       if (conf_is_ht(&hw->conf)) {
                if (ieee80211_is_data_qos(fc)) {
                        u8 *qc, tid;
                        struct ath_node *an;
 
        (sc->sc_flags & SC_OP_PREAMBLE_SHORT) ?
                (bf->bf_state.bf_type |= BUF_SHORT_PREAMBLE) :
                (bf->bf_state.bf_type &= ~BUF_SHORT_PREAMBLE);
-       (sc->hw->conf.ht.enabled && !is_pae(skb) &&
+       (conf_is_ht(&sc->hw->conf) && !is_pae(skb) &&
         (tx_info->flags & IEEE80211_TX_CTL_AMPDU)) ?
                (bf->bf_state.bf_type |= BUF_HT) :
                (bf->bf_state.bf_type &= ~BUF_HT);