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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/net/mac80211/wme.c
..
..
@@ -1,10 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright 2004, Instant802 Networks, Inc.
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  * Copyright 2013-2014  Intel Mobile Communications GmbH
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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6
 
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 #include <linux/netdevice.h>
..
..
@@ -141,71 +138,24 @@
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 	return ieee80211_downgrade_queue(sdata, NULL, skb);
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 }
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140
 
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-/* Indicate which queue to use. */
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-u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
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-			   struct sk_buff *skb)
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+u16 __ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
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+			     struct sta_info *sta, struct sk_buff *skb)
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 {
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-	struct ieee80211_local *local = sdata->local;
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-	struct sta_info *sta = NULL;
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-	const u8 *ra = NULL;
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-	bool qos = false;
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 	struct mac80211_qos_map *qos_map;
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-	u16 ret;
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+	bool qos;
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146
 
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-	if (local->hw.queues < IEEE80211_NUM_ACS || skb->len < 6) {
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-		skb->priority = 0; /* required for correct WPA/11i MIC */
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-		return 0;
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-	}
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-
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-	rcu_read_lock();
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-	switch (sdata->vif.type) {
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-	case NL80211_IFTYPE_AP_VLAN:
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-		sta = rcu_dereference(sdata->u.vlan.sta);
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-		if (sta) {
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-			qos = sta->sta.wme;
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-			break;
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-		}
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-		/* fall through */
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-	case NL80211_IFTYPE_AP:
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-		ra = skb->data;
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-		break;
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-	case NL80211_IFTYPE_WDS:
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-		ra = sdata->u.wds.remote_addr;
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-		break;
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-#ifdef CONFIG_MAC80211_MESH
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-	case NL80211_IFTYPE_MESH_POINT:
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+	/* all mesh/ocb stations are required to support WME */
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+	if (sta && (sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
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+		    sdata->vif.type == NL80211_IFTYPE_OCB))
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 		qos = true;
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-		break;
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-#endif
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-	case NL80211_IFTYPE_STATION:
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-		/* might be a TDLS station */
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-		sta = sta_info_get(sdata, skb->data);
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-		if (sta)
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-			qos = sta->sta.wme;
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-
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-		ra = sdata->u.mgd.bssid;
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-		break;
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-	case NL80211_IFTYPE_ADHOC:
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-		ra = skb->data;
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-		break;
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-	case NL80211_IFTYPE_OCB:
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-		/* all stations are required to support WME */
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-		qos = true;
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-		break;
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-	default:
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-		break;
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-	}
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-
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-	if (!sta && ra && !is_multicast_ether_addr(ra)) {
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-		sta = sta_info_get(sdata, ra);
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-		if (sta)
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-			qos = sta->sta.wme;
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-	}
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+	else if (sta)
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+		qos = sta->sta.wme;
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+	else
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+		qos = false;
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155
 
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 	if (!qos) {
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 		skb->priority = 0; /* required for correct WPA/11i MIC */
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-		ret = IEEE80211_AC_BE;
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-		goto out;
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+		return IEEE80211_AC_BE;
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159
 	}
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160
 
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 	if (skb->protocol == sdata->control_port_protocol) {
..
..
@@ -220,8 +170,61 @@
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170
 					       &qos_map->qos_map : NULL);
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171
 
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  downgrade:
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-	ret = ieee80211_downgrade_queue(sdata, sta, skb);
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- out:
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+	return ieee80211_downgrade_queue(sdata, sta, skb);
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+}
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+
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+
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+/* Indicate which queue to use. */
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+u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
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+			   struct sk_buff *skb)
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+{
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+	struct ieee80211_local *local = sdata->local;
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+	struct sta_info *sta = NULL;
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+	const u8 *ra = NULL;
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+	u16 ret;
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+
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+	/* when using iTXQ, we can do this later */
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+	if (local->ops->wake_tx_queue)
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+		return 0;
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+
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+	if (local->hw.queues < IEEE80211_NUM_ACS || skb->len < 6) {
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+		skb->priority = 0; /* required for correct WPA/11i MIC */
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+		return 0;
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+	}
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+
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+	rcu_read_lock();
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+	switch (sdata->vif.type) {
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+	case NL80211_IFTYPE_AP_VLAN:
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+		sta = rcu_dereference(sdata->u.vlan.sta);
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+		if (sta)
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+			break;
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+		fallthrough;
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+	case NL80211_IFTYPE_AP:
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+		ra = skb->data;
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+		break;
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+	case NL80211_IFTYPE_WDS:
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+		ra = sdata->u.wds.remote_addr;
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+		break;
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+	case NL80211_IFTYPE_STATION:
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+		/* might be a TDLS station */
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+		sta = sta_info_get(sdata, skb->data);
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+		if (sta)
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+			break;
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+
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+		ra = sdata->u.mgd.bssid;
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+		break;
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+	case NL80211_IFTYPE_ADHOC:
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+		ra = skb->data;
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+		break;
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+	default:
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+		break;
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+	}
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+
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+	if (!sta && ra && !is_multicast_ether_addr(ra))
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+		sta = sta_info_get(sdata, ra);
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+
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+	ret = __ieee80211_select_queue(sdata, sta, skb);
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+
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 	rcu_read_unlock();
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 	return ret;
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 }