net: unify the pcpu_tstats and br_cpu_netstats as one

They are same, so unify them as one, pcpu_sw_netstats.

Define pcpu_sw_netstat in netdevice.h, remove pcpu_tstats
from if_tunnel and remove br_cpu_netstats from br_private.h

Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/if_tunnel.h b/include/linux/if_tunnel.h
index f4e56ec..712710b 100644
--- a/include/linux/if_tunnel.h
+++ b/include/linux/if_tunnel.h
@@ -13,13 +13,4 @@
 #define for_each_ip_tunnel_rcu(pos, start) \
 	for (pos = rcu_dereference(start); pos; pos = rcu_dereference(pos->next))
 
-/* often modified stats are per cpu, other are shared (netdev->stats) */
-struct pcpu_tstats {
-	u64	rx_packets;
-	u64	rx_bytes;
-	u64	tx_packets;
-	u64	tx_bytes;
-	struct u64_stats_sync	syncp;
-};
-
 #endif /* _IF_TUNNEL_H_ */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index bec60c4..51c0fe2 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1409,7 +1409,7 @@
 	union {
 		void				*ml_priv;
 		struct pcpu_lstats __percpu	*lstats; /* loopback stats */
-		struct pcpu_tstats __percpu	*tstats; /* tunnel stats */
+		struct pcpu_sw_netstats __percpu	*tstats;
 		struct pcpu_dstats __percpu	*dstats; /* dummy stats */
 		struct pcpu_vstats __percpu	*vstats; /* veth stats */
 	};
@@ -1685,6 +1685,15 @@
 	struct list_head	 list;
 };
 
+/* often modified stats are per cpu, other are shared (netdev->stats) */
+struct pcpu_sw_netstats {
+	u64     rx_packets;
+	u64     rx_bytes;
+	u64     tx_packets;
+	u64     tx_bytes;
+	struct u64_stats_sync   syncp;
+};
+
 #include <linux/notifier.h>
 
 /* netdevice notifier chain. Please remember to update the rtnetlink
diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h
index 6d1549c..a5593da 100644
--- a/include/net/ip6_tunnel.h
+++ b/include/net/ip6_tunnel.h
@@ -79,7 +79,7 @@
 	err = ip6_local_out(skb);
 
 	if (net_xmit_eval(err) == 0) {
-		struct pcpu_tstats *tstats = this_cpu_ptr(dev->tstats);
+		struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats);
 		u64_stats_update_begin(&tstats->syncp);
 		tstats->tx_bytes += pkt_len;
 		tstats->tx_packets++;
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 9e25b1b..cd729be 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -162,10 +162,10 @@
 
 static inline void iptunnel_xmit_stats(int err,
 				       struct net_device_stats *err_stats,
-				       struct pcpu_tstats __percpu *stats)
+				       struct pcpu_sw_netstats __percpu *stats)
 {
 	if (err > 0) {
-		struct pcpu_tstats *tstats = this_cpu_ptr(stats);
+		struct pcpu_sw_netstats *tstats = this_cpu_ptr(stats);
 
 		u64_stats_update_begin(&tstats->syncp);
 		tstats->tx_bytes += err;