ndisc: Remove tbl argument for __ipv6_neigh_lookup().

We can refer to nd_tbl directly.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index 23b3a7c..bbc938e 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -148,7 +148,7 @@
 		(p32[3] * hash_rnd[3]));
 }
 
-static inline struct neighbour *__ipv6_neigh_lookup(struct neigh_table *tbl, struct net_device *dev, const void *pkey)
+static inline struct neighbour *__ipv6_neigh_lookup(struct net_device *dev, const void *pkey)
 {
 	struct neigh_hash_table *nht;
 	const u32 *p32 = pkey;
@@ -156,7 +156,7 @@
 	u32 hash_val;
 
 	rcu_read_lock_bh();
-	nht = rcu_dereference_bh(tbl->nht);
+	nht = rcu_dereference_bh(nd_tbl.nht);
 	hash_val = ndisc_hashfn(pkey, dev, nht->hash_rnd) >> (32 - nht->hash_shift);
 	for (n = rcu_dereference_bh(nht->hash_buckets[hash_val]);
 	     n != NULL;