mwifiex: fix IBSS data path issue.

BugLink: https://bugs.launchpad.net/bugs/1878232

commit dc386ce7 upstream.

The port_open flag is not applicable for IBSS mode. IBSS data
path was broken when port_open flag was introduced.
This patch fixes the problem by correcting the checks.

Fixes: 5c894633 ("mwifiex: enable traffic only when port is open")
Signed-off-by: chunfan chen <jeffc@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ian May <ian.may@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

drivers/net/wireless/mwifiex/sta_event.c

@@ -607,11 +607,13 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
 
 	case EVENT_PS_AWAKE:
 		mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n");
-		if (!adapter->pps_uapsd_mode && priv->port_open &&
+		if (!adapter->pps_uapsd_mode &&
+		    (priv->port_open ||
+		     (priv->bss_mode == NL80211_IFTYPE_ADHOC)) &&
 		    priv->media_connected && adapter->sleep_period.period) {
-				adapter->pps_uapsd_mode = true;
-				mwifiex_dbg(adapter, EVENT,
-					    "event: PPS/UAPSD mode activated\n");
+			adapter->pps_uapsd_mode = true;
+			mwifiex_dbg(adapter, EVENT,
+				    "event: PPS/UAPSD mode activated\n");
 		}
 		adapter->tx_lock_flag = false;
 		if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {

drivers/net/wireless/mwifiex/wmm.c

@@ -475,7 +475,8 @@ mwifiex_wmm_lists_empty(struct mwifiex_adapter *adapter)
 		priv = adapter->priv[i];
 		if (!priv)
 			continue;
-		if (!priv->port_open)
+		if (!priv->port_open &&
+		    (priv->bss_mode != NL80211_IFTYPE_ADHOC))
 			continue;
 		if (adapter->if_ops.is_port_ready &&
 		    !adapter->if_ops.is_port_ready(priv))
@@ -1109,7 +1110,8 @@ mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter,
 
 			priv_tmp = adapter->bss_prio_tbl[j].bss_prio_cur->priv;
 
-			if (!priv_tmp->port_open ||
+			if (((priv_tmp->bss_mode != NL80211_IFTYPE_ADHOC) &&
+			     !priv_tmp->port_open) ||
 			    (atomic_read(&priv_tmp->wmm.tx_pkts_queued) == 0))
 				continue;