net: dsa: 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>
Tested-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/b6047017-8226-6b7e-a3cd-064e69fdfa27@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index e7c1d62..3bc5ca4 100644 (file)
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1221,28 +1221,9 @@ static void dsa_slave_get_stats64(struct net_device *dev,
                                  struct rtnl_link_stats64 *stats)
 {
        struct dsa_slave_priv *p = netdev_priv(dev);
-       struct pcpu_sw_netstats *s;
-       unsigned int start;
-       int i;
 
        netdev_stats_to_stats64(stats, &dev->stats);
-       for_each_possible_cpu(i) {
-               u64 tx_packets, tx_bytes, rx_packets, rx_bytes;
-
-               s = per_cpu_ptr(p->stats64, i);
-               do {
-                       start = u64_stats_fetch_begin_irq(&s->syncp);
-                       tx_packets = s->tx_packets;
-                       tx_bytes = s->tx_bytes;
-                       rx_packets = s->rx_packets;
-                       rx_bytes = s->rx_bytes;
-               } while (u64_stats_fetch_retry_irq(&s->syncp, start));
-
-               stats->tx_packets += tx_packets;
-               stats->tx_bytes += tx_bytes;
-               stats->rx_packets += rx_packets;
-               stats->rx_bytes += rx_bytes;
-       }
+       dev_fetch_sw_netstats(stats, p->stats64);
 }
 
 static int dsa_slave_get_rxnfc(struct net_device *dev,