[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, 2 insertions, 6 deletions

diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index f11120b7a3b2..b6d4ae3ad506 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -221,22 +221,17 @@ static void loopback_dev_free(struct net_device *dev)
 }
 
 /*
- * The loopback device is special. There is only one instance and
- * it is statically allocated. Don't do this for other devices.
+ * The loopback device is special. There is only one instance.
  */
 static void loopback_setup(struct net_device *dev)
 {
         dev->get_stats          = &get_stats;
         dev->mtu                = (16 * 1024) + 20 + 20 + 12;
         dev->hard_start_xmit    = loopback_xmit;
-        dev->hard_header        = eth_header;
-        dev->hard_header_cache  = eth_header_cache;
-        dev->header_cache_update = eth_header_cache_update;
         dev->hard_header_len    = ETH_HLEN;     /* 14   */
         dev->addr_len           = ETH_ALEN;     /* 6    */
         dev->tx_queue_len       = 0;
         dev->type               = ARPHRD_LOOPBACK;      /* 0x0001*/
-        dev->rebuild_header     = eth_rebuild_header;
         dev->flags              = IFF_LOOPBACK;
         dev->features           = NETIF_F_SG | NETIF_F_FRAGLIST
 #ifdef LOOPBACK_TSO
@@ -247,6 +242,7 @@ static void loopback_setup(struct net_device *dev)
                 | NETIF_F_LLTX
                 | NETIF_F_NETNS_LOCAL,
         dev->ethtool_ops        = &loopback_ethtool_ops;
+        dev->header_ops         = &eth_header_ops;
         dev->init = loopback_dev_init;
         dev->destructor = loopback_dev_free;
 }