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>
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869759b9e4
Коммит
da6a8fa027
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@ -974,6 +974,8 @@ struct net_device_ops {
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netdev_features_t features);
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int (*ndo_set_features)(struct net_device *dev,
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netdev_features_t features);
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int (*ndo_neigh_construct)(struct neighbour *n);
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int (*ndo_neigh_destroy)(struct neighbour *n);
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};
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/*
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@ -489,6 +489,14 @@ struct neighbour *neigh_create(struct neigh_table *tbl, const void *pkey,
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goto out_neigh_release;
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}
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if (dev->netdev_ops->ndo_neigh_construct) {
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error = dev->netdev_ops->ndo_neigh_construct(n);
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if (error < 0) {
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rc = ERR_PTR(error);
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goto out_neigh_release;
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}
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}
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/* Device specific setup. */
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if (n->parms->neigh_setup &&
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(error = n->parms->neigh_setup(n)) < 0) {
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@ -692,6 +700,8 @@ static inline void neigh_parms_put(struct neigh_parms *parms)
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*/
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void neigh_destroy(struct neighbour *neigh)
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{
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struct net_device *dev = neigh->dev;
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NEIGH_CACHE_STAT_INC(neigh->tbl, destroys);
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if (!neigh->dead) {
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@ -707,7 +717,10 @@ void neigh_destroy(struct neighbour *neigh)
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skb_queue_purge(&neigh->arp_queue);
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neigh->arp_queue_len_bytes = 0;
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dev_put(neigh->dev);
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if (dev->netdev_ops->ndo_neigh_destroy)
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dev->netdev_ops->ndo_neigh_destroy(neigh);
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dev_put(dev);
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neigh_parms_put(neigh->parms);
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NEIGH_PRINTK2("neigh %p is destroyed.\n", neigh);
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