[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>

1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/net/wan/dlci.c b/drivers/net/wan/dlci.c
index bc12810157e0..96b232446c0b 100644
--- a/drivers/net/wan/dlci.c
+++ b/drivers/net/wan/dlci.c
@@ -66,8 +66,8 @@ static void dlci_setup(struct net_device *);
  */
 
 static int dlci_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)
 {
         struct frhdr            hdr;
         struct dlci_local       *dlp;
@@ -485,6 +485,10 @@ static int dlci_ioctl(unsigned int cmd, void __user *arg)
         return(err);
 }
 
+static const struct header_ops dlci_header_ops = {
+        .create = dlci_header,
+};
+
 static void dlci_setup(struct net_device *dev)
 {
         struct dlci_local *dlp = dev->priv;
@@ -494,7 +498,7 @@ static void dlci_setup(struct net_device *dev)
         dev->stop               = dlci_close;
         dev->do_ioctl           = dlci_dev_ioctl;
         dev->hard_start_xmit    = dlci_transmit;
-        dev->hard_header        = dlci_header;
+        dev->header_ops         = &dlci_header_ops;
         dev->get_stats          = dlci_get_stats;
         dev->change_mtu         = dlci_change_mtu;
         dev->destructor         = free_netdev;