ipgre: Use on-device stats instead of private ones.

Just switch from tunnel->stat to tunnel->dev->stats. The ip_tunnel->stat
member itself will be removed after I fix its other users (very soon).

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 14 insertions, 18 deletions

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 2ada033406de..eede36e55702 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -617,6 +617,8 @@ static int ipgre_rcv(struct sk_buff *skb)
         read_lock(&ipgre_lock);
         if ((tunnel = ipgre_tunnel_lookup(dev_net(skb->dev),
                                         iph->saddr, iph->daddr, key)) != NULL) {
+                struct net_device_stats *stats = &tunnel->dev->stats;
+
                 secpath_reset(skb);
 
                 skb->protocol = *(__be16*)(h + 2);
@@ -641,28 +643,28 @@ static int ipgre_rcv(struct sk_buff *skb)
                         /* Looped back packet, drop it! */
                         if (skb->rtable->fl.iif == 0)
                                 goto drop;
-                        tunnel->stat.multicast++;
+                        stats->multicast++;
                         skb->pkt_type = PACKET_BROADCAST;
                 }
 #endif
 
                 if (((flags&GRE_CSUM) && csum) ||
                     (!(flags&GRE_CSUM) && tunnel->parms.i_flags&GRE_CSUM)) {
-                        tunnel->stat.rx_crc_errors++;
-                        tunnel->stat.rx_errors++;
+                        stats->rx_crc_errors++;
+                        stats->rx_errors++;
                         goto drop;
                 }
                 if (tunnel->parms.i_flags&GRE_SEQ) {
                         if (!(flags&GRE_SEQ) ||
                             (tunnel->i_seqno && (s32)(seqno - tunnel->i_seqno) < 0)) {
-                                tunnel->stat.rx_fifo_errors++;
-                                tunnel->stat.rx_errors++;
+                                stats->rx_fifo_errors++;
+                                stats->rx_errors++;
                                 goto drop;
                         }
                         tunnel->i_seqno = seqno + 1;
                 }
-                tunnel->stat.rx_packets++;
-                tunnel->stat.rx_bytes += skb->len;
+                stats->rx_packets++;
+                stats->rx_bytes += skb->len;
                 skb->dev = tunnel->dev;
                 dst_release(skb->dst);
                 skb->dst = NULL;
@@ -684,7 +686,7 @@ drop_nolock:
 static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 {
         struct ip_tunnel *tunnel = netdev_priv(dev);
-        struct net_device_stats *stats = &tunnel->stat;
+        struct net_device_stats *stats = &tunnel->dev->stats;
         struct iphdr  *old_iph = ip_hdr(skb);
         struct iphdr  *tiph;
         u8     tos;
@@ -698,7 +700,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
         int    mtu;
 
         if (tunnel->recursion++) {
-                tunnel->stat.collisions++;
+                stats->collisions++;
                 goto tx_error;
         }
 
@@ -714,7 +716,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
                 /* NBMA tunnel */
 
                 if (skb->dst == NULL) {
-                        tunnel->stat.tx_fifo_errors++;
+                        stats->tx_fifo_errors++;
                         goto tx_error;
                 }
 
@@ -765,7 +767,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
                                                 .tos = RT_TOS(tos) } },
                                     .proto = IPPROTO_GRE };
                 if (ip_route_output_key(dev_net(dev), &rt, &fl)) {
-                        tunnel->stat.tx_carrier_errors++;
+                        stats->tx_carrier_errors++;
                         goto tx_error;
                 }
         }
@@ -773,7 +775,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 
         if (tdev == dev) {
                 ip_rt_put(rt);
-                tunnel->stat.collisions++;
+                stats->collisions++;
                 goto tx_error;
         }
 
@@ -1098,11 +1100,6 @@ done:
         return err;
 }
 
-static struct net_device_stats *ipgre_tunnel_get_stats(struct net_device *dev)
-{
-        return &(((struct ip_tunnel*)netdev_priv(dev))->stat);
-}
-
 static int ipgre_tunnel_change_mtu(struct net_device *dev, int new_mtu)
 {
         struct ip_tunnel *tunnel = netdev_priv(dev);
@@ -1228,7 +1225,6 @@ static void ipgre_tunnel_setup(struct net_device *dev)
         dev->uninit             = ipgre_tunnel_uninit;
         dev->destructor         = free_netdev;
         dev->hard_start_xmit    = ipgre_tunnel_xmit;
-        dev->get_stats          = ipgre_tunnel_get_stats;
         dev->do_ioctl           = ipgre_tunnel_ioctl;
         dev->change_mtu         = ipgre_tunnel_change_mtu;