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-rw-r--r--include/net/neighbour.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index da1d58be31b7..eb21340a573b 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -299,6 +299,20 @@ static inline int neigh_event_send(struct neighbour *neigh, struct sk_buff *skb)
return 0;
}
+#ifdef CONFIG_BRIDGE_NETFILTER
+static inline int neigh_hh_bridge(struct hh_cache *hh, struct sk_buff *skb)
+{
+ unsigned seq, hh_alen;
+
+ do {
+ seq = read_seqbegin(&hh->hh_lock);
+ hh_alen = HH_DATA_ALIGN(ETH_HLEN);
+ memcpy(skb->data - hh_alen, hh->hh_data, ETH_ALEN + hh_alen - ETH_HLEN);
+ } while (read_seqretry(&hh->hh_lock, seq));
+ return 0;
+}
+#endif
+
static inline int neigh_hh_output(struct hh_cache *hh, struct sk_buff *skb)
{
unsigned seq;
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