[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, 6 insertions, 2 deletions

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index b1c3d6cd8eba..2bd76ef57154 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -780,7 +780,7 @@ static void ipoib_timeout(struct net_device *dev)
 static int ipoib_hard_header(struct sk_buff *skb,
                              struct net_device *dev,
                              unsigned short type,
-                             void *daddr, void *saddr, unsigned len)
+                             const void *daddr, const void *saddr, unsigned len)
 {
         struct ipoib_header *header;
 
@@ -940,6 +940,10 @@ void ipoib_dev_cleanup(struct net_device *dev)
         priv->tx_ring = NULL;
 }
 
+static const struct header_ops ipoib_header_ops = {
+        .create = ipoib_hard_header,
+};
+
 static void ipoib_setup(struct net_device *dev)
 {
         struct ipoib_dev_priv *priv = netdev_priv(dev);
@@ -950,7 +954,7 @@ static void ipoib_setup(struct net_device *dev)
         dev->hard_start_xmit     = ipoib_start_xmit;
         dev->get_stats           = ipoib_get_stats;
         dev->tx_timeout          = ipoib_timeout;
-        dev->hard_header         = ipoib_hard_header;
+        dev->header_ops          = &ipoib_header_ops;
         dev->set_multicast_list  = ipoib_set_mcast_list;
         dev->neigh_setup         = ipoib_neigh_setup_dev;