Staging: batman-adv: Don't increment stats of foreign device

The receive hook for batman-adv ethernet frames tried to get the last
device which processed the skb before us. It only used that information
to update the rx_bytes and rx_packets stat of that foreign device which
already has updated it using its own receive functions.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/batman-adv/hard-interface.c

@@ -442,7 +442,6 @@ int batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
 	struct bat_priv *bat_priv = netdev_priv(soft_device);
 	struct batman_packet *batman_packet;
 	struct batman_if *batman_if;
-	struct net_device_stats *stats;
 	int ret;
 
 	skb = skb_share_check(skb, GFP_ATOMIC);
@@ -478,12 +477,6 @@ int batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
 	if (batman_if->if_status != IF_ACTIVE)
 		goto err_free;
 
-	stats = (struct net_device_stats *)dev_get_stats(skb->dev);
-	if (stats) {
-		stats->rx_packets++;
-		stats->rx_bytes += skb->len;
-	}
-
 	batman_packet = (struct batman_packet *)skb->data;
 
 	if (batman_packet->version != COMPAT_VERSION) {