[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 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;
diff --git a/include/net/arp.h b/include/net/arp.h
index a1f09fad6a52..a13e30c35f42 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 3696f988a9f1..926eed543023 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 5797ba3d2eb5..deb7ca75db48 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 32360bbe143f..2570b536c8f4 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 69324465e8b3..533fc074ed90 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 c9aed2a8b4e2..71769a5aeef3 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 3c99a86c3581..223f8fa9ffca 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 9c94e8f98b36..b2e01cc3fc8a 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 8b39b98876e8..fee62ff8c194 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 *);