1 files changed, 29 insertions, 9 deletions

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 11ab71a68ff..e12a786e26b 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -201,6 +201,24 @@ int mesh_path_error_tx(u8 *dst, __le32 dst_dsn, u8 *ra,
 	return 0;
 }
 
+void ieee80211s_update_metric(struct ieee80211_local *local,
+		struct sta_info *stainfo, struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+	int failed;
+
+	if (!ieee80211_is_data(hdr->frame_control))
+		return;
+
+	failed = !(txinfo->flags & IEEE80211_TX_STAT_ACK);
+
+	/* moving average, scaled to 100 */
+	stainfo->fail_avg = ((80 * stainfo->fail_avg + 5) / 100 + 20 * failed);
+	if (stainfo->fail_avg > 95)
+		mesh_plink_broken(stainfo);
+}
+
 static u32 airtime_link_metric_get(struct ieee80211_local *local,
 				   struct sta_info *sta)
 {
@@ -397,7 +415,8 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
 
 static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
 				    struct ieee80211_mgmt *mgmt,
-				    u8 *preq_elem, u32 metric) {
+				    u8 *preq_elem, u32 metric)
+{
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	struct mesh_path *mpath;
 	u8 *dst_addr, *orig_addr;
@@ -430,7 +449,7 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
 			if ((!(mpath->flags & MESH_PATH_DSN_VALID)) ||
 					DSN_LT(mpath->dsn, dst_dsn)) {
 				mpath->dsn = dst_dsn;
-				mpath->flags &= MESH_PATH_DSN_VALID;
+				mpath->flags |= MESH_PATH_DSN_VALID;
 			} else if ((!(dst_flags & MP_F_DO)) &&
 					(mpath->flags & MESH_PATH_ACTIVE)) {
 				reply = true;
@@ -478,6 +497,7 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
 				hopcount, ttl, cpu_to_le32(lifetime),
 				cpu_to_le32(metric), cpu_to_le32(preq_id),
 				sdata);
+		ifmsh->mshstats.fwded_mcast++;
 		ifmsh->mshstats.fwded_frames++;
 	}
 }
@@ -536,6 +556,8 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata,
 		cpu_to_le32(lifetime), cpu_to_le32(metric),
 		0, sdata);
 	rcu_read_unlock();
+
+	sdata->u.mesh.mshstats.fwded_unicast++;
 	sdata->u.mesh.mshstats.fwded_frames++;
 	return;
 
@@ -660,14 +682,14 @@ static void mesh_queue_preq(struct mesh_path *mpath, u8 flags)
 	spin_unlock(&ifmsh->mesh_preq_queue_lock);
 
 	if (time_after(jiffies, ifmsh->last_preq + min_preq_int_jiff(sdata)))
-		ieee80211_queue_work(sdata->local->hw.workqueue, &ifmsh->work);
+		ieee80211_queue_work(&sdata->local->hw, &ifmsh->work);
 
 	else if (time_before(jiffies, ifmsh->last_preq)) {
 		/* avoid long wait if did not send preqs for a long time
 		 * and jiffies wrapped around
 		 */
 		ifmsh->last_preq = jiffies - min_preq_int_jiff(sdata) - 1;
-		ieee80211_queue_work(sdata->local->hw.workqueue, &ifmsh->work);
+		ieee80211_queue_work(&sdata->local->hw, &ifmsh->work);
 	} else
 		mod_timer(&ifmsh->mesh_path_timer, ifmsh->last_preq +
 						min_preq_int_jiff(sdata));
@@ -791,7 +813,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 	}
 
 	if (mpath->flags & MESH_PATH_ACTIVE) {
-		if (time_after(jiffies, mpath->exp_time -
+		if (time_after(jiffies, mpath->exp_time +
 			msecs_to_jiffies(sdata->u.mesh.mshcfg.path_refresh_time))
 				&& !memcmp(sdata->dev->dev_addr, hdr->addr4,
 					   ETH_ALEN)
@@ -810,10 +832,8 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		}
 
 		if (skb_queue_len(&mpath->frame_queue) >=
-				MESH_FRAME_QUEUE_LEN) {
-			skb_to_free = mpath->frame_queue.next;
-			skb_unlink(skb_to_free, &mpath->frame_queue);
-		}
+				MESH_FRAME_QUEUE_LEN)
+			skb_to_free = skb_dequeue(&mpath->frame_queue);
 
 		info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 		skb_queue_tail(&mpath->frame_queue, skb);