[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>

12 files changed, 21 insertions, 18 deletions

diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 62a9d89dfbe..17d0c0d40b0 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 3a0ed7f9e80..296cf93a65e 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 af4f02e9824..60b32151f76 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;
diff --git a/include/net/arp.h b/include/net/arp.h
index a1f09fad6a5..a13e30c35f4 100644
--- a/include/net/arp.h
+++ b/include/net/arp.h
@@ -11,7 +11,7 @@ extern struct neigh_table arp_tbl;
 
 extern void	arp_init(void);
 extern int	arp_rcv(struct sk_buff *skb, struct net_device *dev,
-			struct packet_type *pt);
+			struct packet_type *pt, struct net_device *orig_dev);
 extern int	arp_find(unsigned char *haddr, struct sk_buff *skb);
 extern int	arp_ioctl(unsigned int cmd, void __user *arg);
 extern void     arp_send(int type, int ptype, u32 dest_ip, 
diff --git a/include/net/ax25.h b/include/net/ax25.h
index 3696f988a9f..926eed54302 100644
--- a/include/net/ax25.h
+++ b/include/net/ax25.h
@@ -316,7 +316,7 @@ extern int  ax25_protocol_is_registered(unsigned int);
 
 /* ax25_in.c */
 extern int  ax25_rx_iframe(ax25_cb *, struct sk_buff *);
-extern int  ax25_kiss_rcv(struct sk_buff *, struct net_device *, struct packet_type *);
+extern int  ax25_kiss_rcv(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *);
 
 /* ax25_ip.c */
 extern int  ax25_encapsulate(struct sk_buff *, struct net_device *, unsigned short, void *, void *, unsigned int);
diff --git a/include/net/datalink.h b/include/net/datalink.h
index 5797ba3d2eb..deb7ca75db4 100644
--- a/include/net/datalink.h
+++ b/include/net/datalink.h
@@ -9,7 +9,7 @@ struct datalink_proto {
         unsigned short  header_length;
 
         int     (*rcvfunc)(struct sk_buff *, struct net_device *,
-                                struct packet_type *);
+                                struct packet_type *, struct net_device *);
 	int     (*request)(struct datalink_proto *, struct sk_buff *,
                                         unsigned char *);
 	struct list_head node;
diff --git a/include/net/ip.h b/include/net/ip.h
index 32360bbe143..2570b536c8f 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -86,7 +86,7 @@ extern int		ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
 					      u32 saddr, u32 daddr,
 					      struct ip_options *opt);
 extern int		ip_rcv(struct sk_buff *skb, struct net_device *dev,
-			       struct packet_type *pt);
+			       struct packet_type *pt, struct net_device *orig_dev);
 extern int		ip_local_deliver(struct sk_buff *skb);
 extern int		ip_mr_input(struct sk_buff *skb);
 extern int		ip_output(struct sk_buff *skb);
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 69324465e8b..533fc074ed9 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -346,7 +346,8 @@ static inline int ipv6_addr_any(const struct in6_addr *a)
 
 extern int			ipv6_rcv(struct sk_buff *skb, 
 					 struct net_device *dev, 
-					 struct packet_type *pt);
+					 struct packet_type *pt,
+					 struct net_device *orig_dev);
 
 /*
  *	upper-layer output functions
diff --git a/include/net/llc.h b/include/net/llc.h
index c9aed2a8b4e..71769a5aeef 100644
--- a/include/net/llc.h
+++ b/include/net/llc.h
@@ -46,7 +46,8 @@ struct llc_sap {
 	unsigned char	 f_bit;
 	int		 (*rcv_func)(struct sk_buff *skb,
 				     struct net_device *dev,
-				     struct packet_type *pt);
+				     struct packet_type *pt,
+				     struct net_device *orig_dev);
 	struct llc_addr	 laddr;
 	struct list_head node;
 	struct {
@@ -64,7 +65,7 @@ extern rwlock_t llc_sap_list_lock;
 extern unsigned char llc_station_mac_sa[ETH_ALEN];
 
 extern int llc_rcv(struct sk_buff *skb, struct net_device *dev,
-		   struct packet_type *pt);
+		   struct packet_type *pt, struct net_device *orig_dev);
 
 extern int llc_mac_hdr_init(struct sk_buff *skb,
 			    unsigned char *sa, unsigned char *da);
@@ -78,7 +79,8 @@ extern void llc_set_station_handler(void (*handler)(struct sk_buff *skb));
 extern struct llc_sap *llc_sap_open(unsigned char lsap,
 				    int (*rcv)(struct sk_buff *skb,
 					       struct net_device *dev,
-					       struct packet_type *pt));
+					       struct packet_type *pt,
+					       struct net_device *orig_dev));
 extern void llc_sap_close(struct llc_sap *sap);
 
 extern struct llc_sap *llc_sap_find(unsigned char sap_value);
diff --git a/include/net/p8022.h b/include/net/p8022.h
index 3c99a86c358..223f8fa9ffc 100644
--- a/include/net/p8022.h
+++ b/include/net/p8022.h
@@ -4,7 +4,8 @@ extern struct datalink_proto *
 	register_8022_client(unsigned char type,
 			     int (*func)(struct sk_buff *skb,
 					 struct net_device *dev,
-					 struct packet_type *pt));
+					 struct packet_type *pt,
+					 struct net_device *orig_dev));
 extern void unregister_8022_client(struct datalink_proto *proto);
 
 #endif
diff --git a/include/net/psnap.h b/include/net/psnap.h
index 9c94e8f98b3..b2e01cc3fc8 100644
--- a/include/net/psnap.h
+++ b/include/net/psnap.h
@@ -1,7 +1,7 @@
 #ifndef _NET_PSNAP_H
 #define _NET_PSNAP_H
 
-extern struct datalink_proto *register_snap_client(unsigned char *desc, int (*rcvfunc)(struct sk_buff *, struct net_device *, struct packet_type *));
+extern struct datalink_proto *register_snap_client(unsigned char *desc, int (*rcvfunc)(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *orig_dev));
 extern void unregister_snap_client(struct datalink_proto *proto);
 
 #endif
diff --git a/include/net/x25.h b/include/net/x25.h
index 8b39b98876e..fee62ff8c19 100644
--- a/include/net/x25.h
+++ b/include/net/x25.h
@@ -175,7 +175,7 @@ extern void x25_kill_by_neigh(struct x25_neigh *);
 
 /* x25_dev.c */
 extern void x25_send_frame(struct sk_buff *, struct x25_neigh *);
-extern int  x25_lapb_receive_frame(struct sk_buff *, struct net_device *, struct packet_type *);
+extern int  x25_lapb_receive_frame(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *);
 extern void x25_establish_link(struct x25_neigh *);
 extern void x25_terminate_link(struct x25_neigh *);