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net: Add ->neigh_lookup() operation to dst_ops

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In the future dst entries will be neigh-less.  In that environment we
need to have an easy transition point for current users of
dst->neighbour outside of the packet output fast path.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-07-18 00:40:17 -07:00
parent 69cce1d140
commit d3aaeb38c4
8 changed files with 52 additions and 16 deletions
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1
include/net/dst_ops.h
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@ -26,6 +26,7 @@ struct dst_ops {
void (*link_failure)(struct sk_buff *);
void (*update_pmtu)(struct dst_entry *dst, u32 mtu);
int (*local_out)(struct sk_buff *skb);
struct neighbour * (*neigh_lookup)(const struct dst_entry *dst, const void *daddr);
struct kmem_cache *kmem_cachep;