xen: netfront: fix xennet_get_ethtool_stats()

commit e9a799ea4a5551d2 (xen: netfront: ethtool stats fields should be
unsigned long) made rx_gso_checksum_fixup an unsigned long.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 27cf72f2..5b399b5 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1692,7 +1692,7 @@
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(xennet_stats); i++)
-		data[i] = *(int *)(np + xennet_stats[i].offset);
+		data[i] = *(unsigned long *)(np + xennet_stats[i].offset);
 }
 
 static void xennet_get_strings(struct net_device *dev, u32 stringset, u8 * data)