tunnels: prepare percpu accounting

Tunnels are going to use percpu for their accounting.

They are going to use a new tstats field in net_device.

skb_tunnel_rx() is changed to be a wrapper around __skb_tunnel_rx()

IPTUNNEL_XMIT() is changed to be a wrapper around __IPTUNNEL_XMIT()

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 01bd4c82d982..83de0eb7a071 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1053,6 +1053,7 @@ struct net_device {
         union {
                 void                            *ml_priv;
                 struct pcpu_lstats __percpu     *lstats; /* loopback stats */
+                struct pcpu_tstats __percpu     *tstats; /* tunnel stats */
         };
         /* GARP */
         struct garp_port        *garp_port;