diff --git a/os_dep/linux/wifi_regd.c b/os_dep/linux/wifi_regd.c
index 73025cc..82abc9c 100644
--- a/os_dep/linux/wifi_regd.c
+++ b/os_dep/linux/wifi_regd.c
@@ -310,16 +310,16 @@ static void _rtw_reg_apply_flags(struct wiphy *wiphy)
 {
 #if 1				/* by channel plan */
 	_adapter *padapter = wiphy_to_adapter(wiphy);
-	struct rf_ctl_t *rfctl = adapter_to_rfctl(padapter);
-	u8 channel_plan = rfctl->ChannelPlan;
-	RT_CHANNEL_INFO *channel_set = rfctl->channel_set;
-	u8 max_chan_nums = rfctl->max_chan_nums;
+	//struct rf_ctl_t *rfctl = adapter_to_rfctl(padapter);
+	//u8 channel_plan = rfctl->ChannelPlan;
+	//RT_CHANNEL_INFO *channel_set = rfctl->channel_set;
+	//u8 max_chan_nums = rfctl->max_chan_nums;
 
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_channel *ch;
 	unsigned int i, j;
 	u16 channel;
-	u32 freq;
+	//u32 freq;
 
 	/* all channels disable */
 	for (i = 0; i < NUM_NL80211_BANDS; i++) {
@@ -330,12 +330,15 @@ static void _rtw_reg_apply_flags(struct wiphy *wiphy)
 				ch = &sband->channels[j];
 
 				if (ch)
-					ch->flags = IEEE80211_CHAN_DISABLED;
+					ch->flags &= ~(IEEE80211_CHAN_DISABLED|IEEE80211_CHAN_NO_HT40PLUS|IEEE80211_CHAN_NO_HT40MINUS);
+					//ch->flags = IEEE80211_CHAN_DISABLED;
 			}
 		}
 	}
 
 	/* channels apply by channel plans. */
+
+	/*
 	for (i = 0; i < max_chan_nums; i++) {
 		channel = channel_set[i].ChannelNum;
 		freq = rtw_ch2freq(channel);
@@ -356,6 +359,7 @@ static void _rtw_reg_apply_flags(struct wiphy *wiphy)
 				ch->flags = 0;
 		}
 	}
+*/
 
 #else
 	struct ieee80211_supported_band *sband;