[NET]: Move hardware header operations out of netdevice.
Since hardware header operations are part of the protocol class
not the device instance, make them into a separate object and
save memory.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index a22087c..b7c81c8 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -164,8 +164,8 @@
}
static int macvlan_hard_header(struct sk_buff *skb, struct net_device *dev,
- unsigned short type, void *daddr, void *saddr,
- unsigned len)
+ unsigned short type, const void *daddr,
+ const void *saddr, unsigned len)
{
const struct macvlan_dev *vlan = netdev_priv(dev);
struct net_device *lowerdev = vlan->lowerdev;
@@ -174,6 +174,15 @@
saddr ? : dev->dev_addr, len);
}
+static const struct header_ops macvlan_hard_header_ops = {
+ .create = macvlan_hard_header,
+ .rebuild = eth_rebuild_header,
+ .parse = eth_header_parse,
+ .rebuild = eth_rebuild_header,
+ .cache = eth_header_cache,
+ .cache_update = eth_header_cache_update,
+};
+
static int macvlan_open(struct net_device *dev)
{
struct macvlan_dev *vlan = netdev_priv(dev);
@@ -295,9 +304,9 @@
dev->change_mtu = macvlan_change_mtu;
dev->change_rx_flags = macvlan_change_rx_flags;
dev->set_multicast_list = macvlan_set_multicast_list;
- dev->hard_header = macvlan_hard_header;
dev->hard_start_xmit = macvlan_hard_start_xmit;
dev->destructor = free_netdev;
+ dev->header_ops = &macvlan_hard_header_ops,
dev->ethtool_ops = &macvlan_ethtool_ops;
dev->tx_queue_len = 0;
}