[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>
diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c
index ce1a9bf..82f236c 100644
--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -377,7 +377,8 @@
  ***********************************************************************/
 static int pppoe_rcv(struct sk_buff *skb,
 		     struct net_device *dev,
-		     struct packet_type *pt)
+		     struct packet_type *pt,
+		     struct net_device *orig_dev)
 
 {
 	struct pppoe_hdr *ph;
@@ -426,7 +427,8 @@
  ***********************************************************************/
 static int pppoe_disc_rcv(struct sk_buff *skb,
 			  struct net_device *dev,
-			  struct packet_type *pt)
+			  struct packet_type *pt,
+			  struct net_device *orig_dev)
 
 {
 	struct pppoe_hdr *ph;