[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/net/netrom/nr_dev.c b/net/netrom/nr_dev.c
index c7b5d93..8c68da5 100644
--- a/net/netrom/nr_dev.c
+++ b/net/netrom/nr_dev.c
@@ -95,8 +95,9 @@
#endif
-static int nr_header(struct sk_buff *skb, struct net_device *dev, unsigned short type,
- void *daddr, void *saddr, unsigned len)
+static int nr_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type,
+ const void *daddr, const void *saddr, unsigned len)
{
unsigned char *buff = skb_push(skb, NR_NETWORK_LEN + NR_TRANSPORT_LEN);
@@ -193,6 +194,12 @@
return &nr->stats;
}
+static const struct header_ops nr_header_ops = {
+ .create = nr_header,
+ .rebuild= nr_rebuild_header,
+};
+
+
void nr_setup(struct net_device *dev)
{
dev->mtu = NR_MAX_PACKET_SIZE;
@@ -200,11 +207,10 @@
dev->open = nr_open;
dev->stop = nr_close;
- dev->hard_header = nr_header;
+ dev->header_ops = &nr_header_ops;
dev->hard_header_len = NR_NETWORK_LEN + NR_TRANSPORT_LEN;
dev->addr_len = AX25_ADDR_LEN;
dev->type = ARPHRD_NETROM;
- dev->rebuild_header = nr_rebuild_header;
dev->set_mac_address = nr_set_mac_address;
/* New-style flags. */