neigh: Add infrastructure for allocating device neigh privates.

netdev->neigh_priv_len records the private area length.

This will trigger for neigh_table objects which set tbl->entry_size
to zero, and the first instances of this will be forthcoming.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/atm/clip.c b/net/atm/clip.c
index 11439a7f6782..aea7cad2ece1 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -535,6 +535,7 @@ static void clip_setup(struct net_device *dev)
 {
         dev->netdev_ops = &clip_netdev_ops;
         dev->type = ARPHRD_ATM;
+        dev->neigh_priv_len = sizeof(struct atmarp_entry);
         dev->hard_header_len = RFC1483LLC_LEN;
         dev->mtu = RFC1626_MTU;
         dev->tx_queue_len = 100;        /* "normal" queue (packets) */