immortalwrt/package/kernel/mac80211/patches/subsys/600-mac80211-allow-vht-on-2g.patch

--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -137,7 +137,8 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(stru
 	have_80mhz = false;
 	for (i = 0; i < sband->n_channels; i++) {
 		if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED |
-						IEEE80211_CHAN_NO_80MHZ))
+						IEEE80211_CHAN_NO_80MHZ) &
+						(sband->band != NL80211_BAND_2GHZ))
 			continue;
 
 		have_80mhz = true;
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1312,7 +1312,8 @@ static int ieee80211_put_preq_ies_band(s
 	/* Check if any channel in this sband supports at least 80 MHz */
 	for (i = 0; i < sband->n_channels; i++) {
 		if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED |
-						IEEE80211_CHAN_NO_80MHZ))
+						IEEE80211_CHAN_NO_80MHZ) &
+						(sband->band != NL80211_BAND_2GHZ))
 			continue;
 
 		have_80mhz = true;
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -5246,7 +5246,8 @@ ieee80211_determine_our_sta_mode(struct
 		/* Allow VHT if at least one channel on the sband supports 80 MHz */
 		for (i = 0; i < sband->n_channels; i++) {
 			if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED |
-							IEEE80211_CHAN_NO_80MHZ))
+							IEEE80211_CHAN_NO_80MHZ) &
+							(sband->band != NL80211_BAND_2GHZ))
 				continue;
 
 			have_80mhz = true;