net: usbnet: 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>
Link: https://lore.kernel.org/r/70ad3e33-8ea6-e12e-31de-5fec7a3c4f6e@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 963d260d19ab30a9242e4476e57560f1fa805e2f..6062dc27870e728ceb0a2ae559bae9782bee237b 100644 (file)
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -983,31 +983,9 @@ EXPORT_SYMBOL_GPL(usbnet_set_link_ksettings);
 void usbnet_get_stats64(struct net_device *net, struct rtnl_link_stats64 *stats)
 {
        struct usbnet *dev = 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(dev->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, dev->stats64);
 }
 EXPORT_SYMBOL_GPL(usbnet_get_stats64);