Merge tag 'mac80211-for-davem-2016-09-13' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
A few more fixes:
 * better mesh path fixing, from Thomas
 * fix TIM IE recalculation after sending frames
   to a sleeping station, from Felix
 * fix sequence number assignment while sending
   frames to a sleeping station, also from Felix
 * validate number of probe response CSA counter
   offsets, fixing a copy/paste bug (from myself)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

5 files changed, 39 insertions, 37 deletions

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 8f9c3bde835f4..faccef9776707 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -746,6 +746,7 @@ static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata,
 		sta = next_hop_deref_protected(mpath);
 		if (mpath->flags & MESH_PATH_ACTIVE &&
 		    ether_addr_equal(ta, sta->sta.addr) &&
+		    !(mpath->flags & MESH_PATH_FIXED) &&
 		    (!(mpath->flags & MESH_PATH_SN_VALID) ||
 		    SN_GT(target_sn, mpath->sn)  || target_sn == 0)) {
 			mpath->flags &= ~MESH_PATH_ACTIVE;
@@ -1012,7 +1013,7 @@ void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata)
 		goto enddiscovery;
 
 	spin_lock_bh(&mpath->state_lock);
-	if (mpath->flags & MESH_PATH_DELETED) {
+	if (mpath->flags & (MESH_PATH_DELETED | MESH_PATH_FIXED)) {
 		spin_unlock_bh(&mpath->state_lock);
 		goto enddiscovery;
 	}
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 6db2ddfa0695f..f0e6175a9821f 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -826,7 +826,7 @@ void mesh_path_fix_nexthop(struct mesh_path *mpath, struct sta_info *next_hop)
 	mpath->metric = 0;
 	mpath->hop_count = 0;
 	mpath->exp_time = 0;
-	mpath->flags |= MESH_PATH_FIXED;
+	mpath->flags = MESH_PATH_FIXED | MESH_PATH_SN_VALID;
 	mesh_path_activate(mpath);
 	spin_unlock_bh(&mpath->state_lock);
 	mesh_path_tx_pending(mpath);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 76b737dcc36f8..aa58df80ede02 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1616,7 +1616,6 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta,
 
 		sta_info_recalc_tim(sta);
 	} else {
-		unsigned long tids = sta->txq_buffered_tids & driver_release_tids;
 		int tid;
 
 		/*
@@ -1648,7 +1647,8 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta,
 		for (tid = 0; tid < ARRAY_SIZE(sta->sta.txq); tid++) {
 			struct txq_info *txqi = to_txq_info(sta->sta.txq[tid]);
 
-			if (!(tids & BIT(tid)) || txqi->tin.backlog_packets)
+			if (!(driver_release_tids & BIT(tid)) ||
+			    txqi->tin.backlog_packets)
 				continue;
 
 			sta_info_recalc_tim(sta);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 502396694f479..cc8e95554b488 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -796,6 +796,36 @@ static __le16 ieee80211_tx_next_seq(struct sta_info *sta, int tid)
 	return ret;
 }
 
+static struct txq_info *ieee80211_get_txq(struct ieee80211_local *local,
+					  struct ieee80211_vif *vif,
+					  struct ieee80211_sta *pubsta,
+					  struct sk_buff *skb)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_txq *txq = NULL;
+
+	if ((info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) ||
+	    (info->control.flags & IEEE80211_TX_CTRL_PS_RESPONSE))
+		return NULL;
+
+	if (!ieee80211_is_data(hdr->frame_control))
+		return NULL;
+
+	if (pubsta) {
+		u8 tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK;
+
+		txq = pubsta->txq[tid];
+	} else if (vif) {
+		txq = vif->txq;
+	}
+
+	if (!txq)
+		return NULL;
+
+	return to_txq_info(txq);
+}
+
 static ieee80211_tx_result debug_noinline
 ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
 {
@@ -853,7 +883,8 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
 	tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
 	tx->sta->tx_stats.msdu[tid]++;
 
-	if (!tx->sta->sta.txq[0])
+	if (!ieee80211_get_txq(tx->local, info->control.vif, &tx->sta->sta,
+			       tx->skb))
 		hdr->seq_ctrl = ieee80211_tx_next_seq(tx->sta, tid);
 
 	return TX_CONTINUE;
@@ -1243,36 +1274,6 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
 	return TX_CONTINUE;
 }
 
-static struct txq_info *ieee80211_get_txq(struct ieee80211_local *local,
-					  struct ieee80211_vif *vif,
-					  struct ieee80211_sta *pubsta,
-					  struct sk_buff *skb)
-{
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_txq *txq = NULL;
-
-	if ((info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) ||
-	    (info->control.flags & IEEE80211_TX_CTRL_PS_RESPONSE))
-		return NULL;
-
-	if (!ieee80211_is_data(hdr->frame_control))
-		return NULL;
-
-	if (pubsta) {
-		u8 tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK;
-
-		txq = pubsta->txq[tid];
-	} else if (vif) {
-		txq = vif->txq;
-	}
-
-	if (!txq)
-		return NULL;
-
-	return to_txq_info(txq);
-}
-
 static void ieee80211_set_skb_enqueue_time(struct sk_buff *skb)
 {
 	IEEE80211_SKB_CB(skb)->control.enqueue_time = codel_get_time();
@@ -3264,7 +3265,7 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
 
 	if (hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
 		*ieee80211_get_qos_ctl(hdr) = tid;
-		if (!sta->sta.txq[0])
+		if (!ieee80211_get_txq(local, &sdata->vif, &sta->sta, skb))
 			hdr->seq_ctrl = ieee80211_tx_next_seq(sta, tid);
 	} else {
 		info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index f02653a089933..4809f4d2cdcc2 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6978,7 +6978,7 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
 
 		params.n_counter_offsets_presp = len / sizeof(u16);
 		if (rdev->wiphy.max_num_csa_counters &&
-		    (params.n_counter_offsets_beacon >
+		    (params.n_counter_offsets_presp >
 		     rdev->wiphy.max_num_csa_counters))
 			return -EINVAL;