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neigh: Add device constructor/destructor capability. 

If the neigh entry has device private state, it will need
constructor/destructor ops.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Miller 2011-07-25 00:01:38 +00:00 committed by David S. Miller
parent 869759b9e4
commit da6a8fa027
2 changed files with 16 additions and 1 deletions
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2
include/linux/netdevice.h
View File

@ -974,6 +974,8 @@ struct net_device_ops {
netdev_features_t features);
int (*ndo_set_features)(struct net_device *dev,
netdev_features_t features);
int (*ndo_neigh_construct)(struct neighbour *n);
int (*ndo_neigh_destroy)(struct neighbour *n);
};
/*

15
net/core/neighbour.c
View File

@ -489,6 +489,14 @@ struct neighbour *neigh_create(struct neigh_table *tbl, const void *pkey,
goto out_neigh_release;
}
if (dev->netdev_ops->ndo_neigh_construct) {
error = dev->netdev_ops->ndo_neigh_construct(n);
if (error < 0) {
rc = ERR_PTR(error);
goto out_neigh_release;
}
}
/* Device specific setup. */
if (n->parms->neigh_setup &&
(error = n->parms->neigh_setup(n)) < 0) {
@ -692,6 +700,8 @@ static inline void neigh_parms_put(struct neigh_parms *parms)
*/
void neigh_destroy(struct neighbour *neigh)
{
struct net_device *dev = neigh->dev;
NEIGH_CACHE_STAT_INC(neigh->tbl, destroys);
if (!neigh->dead) {
@ -707,7 +717,10 @@ void neigh_destroy(struct neighbour *neigh)
skb_queue_purge(&neigh->arp_queue);
neigh->arp_queue_len_bytes = 0;
dev_put(neigh->dev);
if (dev->netdev_ops->ndo_neigh_destroy)
dev->netdev_ops->ndo_neigh_destroy(neigh);
dev_put(dev);
neigh_parms_put(neigh->parms);
NEIGH_PRINTK2("neigh %p is destroyed.\n", neigh);