[NET]: Kill skb->real_dev

Bonding just wants the device before the skb_bond()
decapsulation occurs, so simply pass that original
device into packet_type->func() as an argument.

It remains to be seen whether we can use this same
exact thing to get rid of skb->input_dev as well.

Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 6 insertions, 7 deletions

diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 62a9d89dfbe2..17d0c0d40b0e 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -155,7 +155,6 @@ static inline int __vlan_hwaccel_rx(struct sk_buff *skb,
 {
         struct net_device_stats *stats;
 
-        skb->real_dev = skb->dev;
         skb->dev = grp->vlan_devices[vlan_tag & VLAN_VID_MASK];
         if (skb->dev == NULL) {
                 dev_kfree_skb_any(skb);
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3a0ed7f9e801..296cf93a65e0 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -497,10 +497,12 @@ static inline void *netdev_priv(struct net_device *dev)
 #define SET_NETDEV_DEV(net, pdev)       ((net)->class_dev.dev = (pdev))
 
 struct packet_type {
-        __be16                  type;   /* This is really htons(ether_type).    */
-        struct net_device               *dev;   /* NULL is wildcarded here              */
-        int                     (*func) (struct sk_buff *, struct net_device *,
-                                         struct packet_type *);
+        __be16                  type;   /* This is really htons(ether_type). */
+        struct net_device       *dev;   /* NULL is wildcarded here           */
+        int                     (*func) (struct sk_buff *,
+                                         struct net_device *,
+                                         struct packet_type *,
+                                         struct net_device *);
         void                    *af_packet_priv;
         struct list_head        list;
 };
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index af4f02e98243..60b32151f76a 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -164,7 +164,6 @@ struct skb_shared_info {
  *      @stamp: Time we arrived
  *      @dev: Device we arrived on/are leaving by
  *      @input_dev: Device we arrived on
- *      @real_dev: The real device we are using
  *      @h: Transport layer header
  *      @nh: Network layer header
  *      @mac: Link layer header
@@ -206,7 +205,6 @@ struct sk_buff {
         struct timeval          stamp;
         struct net_device       *dev;
         struct net_device       *input_dev;
-        struct net_device       *real_dev;
 
         union {
                 struct tcphdr   *th;