[PATCH 6/8] mac80211: Early detection of broken mesh paths when using minstrel.

[Javier Cardona <javier@cozybit.com>]

Signed-off-by: Javier Cardona <javier@cozybit.com>
---
 net/mac80211/mesh_hwmp.c        |    1 -
 net/mac80211/rc80211_minstrel.c |    8 +++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index b4309b2..1cd1e72 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -272,7 +272,6 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
 	}
 
 	last_hop_metric = airtime_link_metric_get(local, sta);
-	printk("XXX: last_hop_metric = %d\n", last_hop_metric);
 	/* Update and check originator routing info */
 	fresh_info = true;
 
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 3ea9740..0071649 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -51,6 +51,7 @@
 #include <linux/random.h>
 #include <linux/ieee80211.h>
 #include <net/mac80211.h>
+#include "mesh.h"
 #include "rate.h"
 #include "rc80211_minstrel.h"
 
@@ -178,9 +179,14 @@ minstrel_tx_status(void *priv, struct ieee80211_supported_band *sband,
 
 		if ((i != IEEE80211_TX_MAX_RATES - 1) && (ar[i + 1].idx < 0)) {
 			mi->r[ndx].success += success;
-			if (si)
+			if (si) {
 				si->fail_avg = (18050 - mi->r[ndx].probability)
 					/ 180;
+				WARN_ON(si->fail_avg > 100);
+				if (si->fail_avg == 100 &&
+					ieee80211_vif_is_mesh(&si->sdata->vif))
+					mesh_plink_broken(si);
+			}
 		}
 	}
 
-- 
1.5.4.3