From: Chun-Yeow Yeoh Date: Tue, 19 Feb 2013 02:04:50 +0000 (+0800) Subject: mac80211: fix the problem of forwarding from DS to DS in Mesh X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=163df6cf292a1024277f500038fc0ed493635673;p=linux-beck.git mac80211: fix the problem of forwarding from DS to DS in Mesh Unicast frame with unknown forwarding information always trigger the path discovery assuming destination is always located inside the MBSS. This patch allows the forwarding to look for mesh gate if path discovery inside the MBSS has failed. Reported-by: Cedric Voncken Signed-off-by: Chun-Yeow Yeoh Signed-off-by: Johannes Berg --- diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 5800c7a0d075..bb05a0f86034 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1844,9 +1844,24 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, } if (!is_multicast_ether_addr(skb->data)) { + struct sta_info *next_hop; + bool mpp_lookup = true; + mpath = mesh_path_lookup(sdata, skb->data); - if (!mpath) + if (mpath) { + mpp_lookup = false; + next_hop = rcu_dereference(mpath->next_hop); + if (!next_hop || + !(mpath->flags & (MESH_PATH_ACTIVE | + MESH_PATH_RESOLVING))) + mpp_lookup = true; + } + + if (mpp_lookup) mppath = mpp_path_lookup(sdata, skb->data); + + if (mppath && mpath) + mesh_path_del(mpath->sdata, mpath->dst); } /*