mac80211: check hostapd configuration parsing twt requests

Check twt_responder in ieee80211_process_rx_twt_action routine
in order to take into account the case where twt has been disabled
in hostapd configuration.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/516057fe4ca73ad257e8c2762e25f4b7872957fc.1630051438.git.lorenzo@kernel.orgSigned-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/rx.c

@@ -3216,10 +3216,7 @@ static bool
 ieee80211_process_rx_twt_action(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)rx->skb->data;
-	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
 	struct ieee80211_sub_if_data *sdata = rx->sdata;
-	const struct ieee80211_sta_he_cap *hecap;
-	struct ieee80211_supported_band *sband;
 
 	/* TWT actions are only supported in AP for the moment */
 	if (sdata->vif.type != NL80211_IFTYPE_AP)
@@ -3228,14 +3225,7 @@ ieee80211_process_rx_twt_action(struct ieee80211_rx_data *rx)
 	if (!rx->local->ops->add_twt_setup)
 		return false;
 
-	sband = rx->local->hw.wiphy->bands[status->band];
-	hecap = ieee80211_get_he_iftype_cap(sband,
-					    ieee80211_vif_type_p2p(&sdata->vif));
-	if (!hecap)
-		return false;
-
-	if (!(hecap->he_cap_elem.mac_cap_info[0] &
-	      IEEE80211_HE_MAC_CAP0_TWT_RES))
+	if (!sdata->vif.bss_conf.twt_responder)
 		return false;
 
 	if (!rx->sta)