ax25: Refactor to use private neighbour operations.

AX25 already has it's own private arp cache operations to isolate
it's abuse of dev_rebuild_header to transmit packets.  Add a function
ax25_neigh_construct that will allow all of the ax25 devices to
force using these operations, so that the generic arp code does
not need to.

Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-hams@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index e37c8d515ce8..c12ec2c2b594 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -641,6 +641,7 @@ static const struct net_device_ops ax_netdev_ops = {
         .ndo_stop            = ax_close,
         .ndo_start_xmit      = ax_xmit,
         .ndo_set_mac_address = ax_set_mac_address,
+        .ndo_neigh_construct = ax25_neigh_construct,
 };
 
 static void ax_setup(struct net_device *dev)
@@ -650,6 +651,7 @@ static void ax_setup(struct net_device *dev)
         dev->hard_header_len = 0;
         dev->addr_len        = 0;
         dev->type            = ARPHRD_AX25;
+        dev->neigh_priv_len  = sizeof(struct ax25_neigh_priv);
         dev->tx_queue_len    = 10;
         dev->header_ops      = &ax25_header_ops;
         dev->netdev_ops      = &ax_netdev_ops;