virtio: net: remove sparse errors

commit 3fa2a1df909 (virtio-net: per cpu 64 bit stats (v2)) added extra
__percpu qualifiers and sparse errors.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/virtio_net.c

@@ -255,7 +255,7 @@ static int receive_mergeable(struct virtnet_info *vi, struct sk_buff *skb)
 static void receive_buf(struct net_device *dev, void *buf, unsigned int len)
 {
 	struct virtnet_info *vi = netdev_priv(dev);
-	struct virtnet_stats __percpu *stats = this_cpu_ptr(vi->stats);
+	struct virtnet_stats *stats = this_cpu_ptr(vi->stats);
 	struct sk_buff *skb;
 	struct page *page;
 	struct skb_vnet_hdr *hdr;
@@ -549,7 +549,7 @@ static unsigned int free_old_xmit_skbs(struct virtnet_info *vi)
 {
 	struct sk_buff *skb;
 	unsigned int len, tot_sgs = 0;
-	struct virtnet_stats __percpu *stats = this_cpu_ptr(vi->stats);
+	struct virtnet_stats *stats = this_cpu_ptr(vi->stats);
 
 	while ((skb = virtqueue_get_buf(vi->svq, &len)) != NULL) {
 		pr_debug("Sent skb %p\n", skb);
@@ -688,8 +688,7 @@ static struct rtnl_link_stats64 *virtnet_stats(struct net_device *dev,
 	unsigned int start;
 
 	for_each_possible_cpu(cpu) {
-		struct virtnet_stats __percpu *stats
-			= per_cpu_ptr(vi->stats, cpu);
+		struct virtnet_stats *stats = per_cpu_ptr(vi->stats, cpu);
 		u64 tpackets, tbytes, rpackets, rbytes;
 
 		do {