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-rw-r--r--net/bluetooth/6lowpan.c15
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;
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