1 files changed, 23 insertions, 0 deletions

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index d9a02b2cc289..19b8e003f150 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -466,6 +466,28 @@ out_neigh_release:
         goto out;
 }
 
+struct pneigh_entry *__pneigh_lookup(struct neigh_table *tbl,
+                struct net *net, const void *pkey, struct net_device *dev)
+{
+        struct pneigh_entry *n;
+        int key_len = tbl->key_len;
+        u32 hash_val = *(u32 *)(pkey + key_len - 4);
+
+        hash_val ^= (hash_val >> 16);
+        hash_val ^= hash_val >> 8;
+        hash_val ^= hash_val >> 4;
+        hash_val &= PNEIGH_HASHMASK;
+
+        for (n = tbl->phash_buckets[hash_val]; n; n = n->next) {
+                if (!memcmp(n->key, pkey, key_len) &&
+                    (n->net == net) &&
+                    (n->dev == dev || !n->dev))
+                        break;
+        }
+
+        return n;
+}
+
 struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl,
                                     struct net *net, const void *pkey,
                                     struct net_device *dev, int creat)
@@ -2803,6 +2825,7 @@ EXPORT_SYMBOL(neigh_table_init_no_netlink);
 EXPORT_SYMBOL(neigh_update);
 EXPORT_SYMBOL(pneigh_enqueue);
 EXPORT_SYMBOL(pneigh_lookup);
+EXPORT_SYMBOL_GPL(__pneigh_lookup);
 
 #ifdef CONFIG_ARPD
 EXPORT_SYMBOL(neigh_app_ns);