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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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9
include/net/arp.h
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@@ -38,15 +38,6 @@ static inline struct neighbour *__ipv4_neigh_lookup(struct neigh_table *tbl, str
return n;
}
static inline struct neighbour *ipv4_neigh_lookup(struct neigh_table *tbl, struct net_device *dev, const __be32 *pkey)
{
struct neighbour *n = __ipv4_neigh_lookup(tbl, dev,
*(__force u32 *)pkey);
if (n)
return n;
return neigh_create(tbl, pkey, dev);
}
extern void arp_init(void);
extern int arp_find(unsigned char *haddr, struct sk_buff *skb);
extern int arp_ioctl(struct net *net, unsigned int cmd, void __user *arg);