[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, 11 insertions, 50 deletions

diff --git a/drivers/net/shaper.c b/drivers/net/shaper.c
index 315feba7dacc..228f650250f6 100644
--- a/drivers/net/shaper.c
+++ b/drivers/net/shaper.c
@@ -331,15 +331,16 @@ static int shaper_close(struct net_device *dev)
  */
 
 static int shaper_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 shaper *sh=dev->priv;
         int v;
         if(sh_debug)
                 printk("Shaper header\n");
-        skb->dev=sh->dev;
-        v=sh->hard_header(skb,sh->dev,type,daddr,saddr,len);
-        skb->dev=dev;
+        skb->dev = sh->dev;
+        v = dev_hard_header(skb, sh->dev, type, daddr, saddr, len);
+        skb->dev = dev;
         return v;
 }
 
@@ -351,7 +352,7 @@ static int shaper_rebuild_header(struct sk_buff *skb)
         if(sh_debug)
                 printk("Shaper rebuild header\n");
         skb->dev=sh->dev;
-        v=sh->rebuild_header(skb);
+        v = sh->dev->header_ops->rebuild(skb);
         skb->dev=dev;
         return v;
 }
@@ -415,51 +416,17 @@ static int shaper_neigh_setup_dev(struct net_device *dev, struct neigh_parms *p)
 
 #endif
 
+static const struct header_ops shaper_ops = {
+        .create  = shaper_header,
+        .rebuild = shaper_rebuild_header,
+};
+
 static int shaper_attach(struct net_device *shdev, struct shaper *sh, struct net_device *dev)
 {
         sh->dev = dev;
-        sh->hard_start_xmit=dev->hard_start_xmit;
         sh->get_stats=dev->get_stats;
-        if(dev->hard_header)
-        {
-                sh->hard_header=dev->hard_header;
-                shdev->hard_header = shaper_header;
-        }
-        else
-                shdev->hard_header = NULL;
 
-        if(dev->rebuild_header)
-        {
-                sh->rebuild_header      = dev->rebuild_header;
-                shdev->rebuild_header   = shaper_rebuild_header;
-        }
-        else
-                shdev->rebuild_header   = NULL;
-
-#if 0
-        if(dev->hard_header_cache)
-        {
-                sh->hard_header_cache   = dev->hard_header_cache;
-                shdev->hard_header_cache= shaper_cache;
-        }
-        else
-        {
-                shdev->hard_header_cache= NULL;
-        }
-
-        if(dev->header_cache_update)
-        {
-                sh->header_cache_update = dev->header_cache_update;
-                shdev->header_cache_update = shaper_cache_update;
-        }
-        else
-                shdev->header_cache_update= NULL;
-#else
-        shdev->header_cache_update = NULL;
-        shdev->hard_header_cache = NULL;
-#endif
         shdev->neigh_setup = shaper_neigh_setup_dev;
-
         shdev->hard_header_len=dev->hard_header_len;
         shdev->type=dev->type;
         shdev->addr_len=dev->addr_len;
@@ -542,12 +509,6 @@ static void __init shaper_setup(struct net_device *dev)
          *      Handlers for when we attach to a device.
          */
 
-        dev->hard_header        = shaper_header;
-        dev->rebuild_header     = shaper_rebuild_header;
-#if 0
-        dev->hard_header_cache  = shaper_cache;
-        dev->header_cache_update= shaper_cache_update;
-#endif
         dev->neigh_setup        = shaper_neigh_setup_dev;
         dev->do_ioctl           = shaper_ioctl;
         dev->hard_header_len    = 0;