net: usb: qmi_wwan: use new function dev_fetch_sw_netstats

Simplify the code by using new function dev_fetch_sw_netstats().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Link: https://lore.kernel.org/r/2c97b75b-107e-0ab6-d9ef-9f38bb03f495@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 5ca1356..a322f51 100644 (file)
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -126,31 +126,9 @@ static void qmimux_get_stats64(struct net_device *net,
                               struct rtnl_link_stats64 *stats)
 {
        struct qmimux_priv *priv = netdev_priv(net);
-       unsigned int start;
-       int cpu;
 
        netdev_stats_to_stats64(stats, &net->stats);
-
-       for_each_possible_cpu(cpu) {
-               struct pcpu_sw_netstats *stats64;
-               u64 rx_packets, rx_bytes;
-               u64 tx_packets, tx_bytes;
-
-               stats64 = per_cpu_ptr(priv->stats64, cpu);
-
-               do {
-                       start = u64_stats_fetch_begin_irq(&stats64->syncp);
-                       rx_packets = stats64->rx_packets;
-                       rx_bytes = stats64->rx_bytes;
-                       tx_packets = stats64->tx_packets;
-                       tx_bytes = stats64->tx_bytes;
-               } while (u64_stats_fetch_retry_irq(&stats64->syncp, start));
-
-               stats->rx_packets += rx_packets;
-               stats->rx_bytes += rx_bytes;
-               stats->tx_packets += tx_packets;
-               stats->tx_bytes += tx_bytes;
-       }
+       dev_fetch_sw_netstats(stats, priv->stats64);
 }
 
 static const struct net_device_ops qmimux_netdev_ops = {