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neigh: Don't require a dst in neigh_resolve_output
Having a dst helps a little bit for teql but is fundamentally unnecessary and there are code paths where a dst is not available that it would be nice to use the neighbour cache. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 0 additions and 6 deletions
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@ -1284,12 +1284,8 @@ static void neigh_hh_init(struct neighbour *n)
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int neigh_resolve_output(struct neighbour *neigh, struct sk_buff *skb)
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{
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struct dst_entry *dst = skb_dst(skb);
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int rc = 0;
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if (!dst)
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goto discard;
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if (!neigh_event_send(neigh, skb)) {
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int err;
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struct net_device *dev = neigh->dev;
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@ -1312,8 +1308,6 @@ int neigh_resolve_output(struct neighbour *neigh, struct sk_buff *skb)
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}
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out:
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return rc;
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discard:
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neigh_dbg(1, "%s: dst=%p neigh=%p\n", __func__, dst, neigh);
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out_kfree_skb:
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rc = -EINVAL;
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kfree_skb(skb);
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