IB/hfi1: use new function dev_fetch_sw_netstats

				       struct rtnl_link_stats64 *storage)

{

	struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev);

	u64 rx_packets = 0ull;

	u64 rx_bytes = 0ull;

	u64 tx_packets = 0ull;

	u64 tx_bytes = 0ull;

	int i;

	netdev_stats_to_stats64(storage, &dev->stats);

	for_each_possible_cpu(i) {

		const struct pcpu_sw_netstats *stats;

		unsigned int start;

		u64 trx_packets;

		u64 trx_bytes;

		u64 ttx_packets;

		u64 ttx_bytes;

		stats = per_cpu_ptr(priv->netstats, i);

		do {

			start = u64_stats_fetch_begin_irq(&stats->syncp);

			trx_packets = stats->rx_packets;

			trx_bytes = stats->rx_bytes;

			ttx_packets = stats->tx_packets;

			ttx_bytes = stats->tx_bytes;

		} while (u64_stats_fetch_retry_irq(&stats->syncp, start));

		rx_packets += trx_packets;

		rx_bytes += trx_bytes;

		tx_packets += ttx_packets;

		tx_bytes += ttx_bytes;

	}

	storage->rx_packets += rx_packets;

	storage->rx_bytes += rx_bytes;

	storage->tx_packets += tx_packets;

	storage->tx_bytes += tx_bytes;

	dev_fetch_sw_netstats(storage, priv->netstats);

}

static const struct net_device_ops hfi1_ipoib_netdev_ops = {