diff options
| -rw-r--r-- | net/bluetooth/6lowpan.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c index 9001bf331d56..f4e548e7b985 100644 --- a/net/bluetooth/6lowpan.c +++ b/net/bluetooth/6lowpan.c @@ -164,6 +164,7 @@ static inline struct lowpan_peer *peer_lookup_dst(struct lowpan_btle_dev *dev, int count = atomic_read(&dev->peer_count); const struct in6_addr *nexthop; struct lowpan_peer *peer; + struct neighbour *neigh; BT_DBG("peers %d addr %pI6c rt %p", count, daddr, rt); @@ -215,6 +216,20 @@ static inline struct lowpan_peer *peer_lookup_dst(struct lowpan_btle_dev *dev, } } + /* use the neighbour cache for matching addresses assigned by SLAAC + */ + neigh = __ipv6_neigh_lookup(dev->netdev, nexthop); + if (neigh) { + list_for_each_entry_rcu(peer, &dev->peers, list) { + if (!memcmp(neigh->ha, peer->lladdr, ETH_ALEN)) { + neigh_release(neigh); + rcu_read_unlock(); + return peer; + } + } + neigh_release(neigh); + } + rcu_read_unlock(); return NULL; |
