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[net-next,v2,09/12] iptunnel: use new function dev_fetch_sw_netstats

Message ID 050f9a83-b195-a3d6-edbd-91a59040be21@gmail.com (mailing list archive)
State RFC
Headers show
Series net: add and use function dev_fetch_sw_netstats for fetching pcpu_sw_netstats | expand

Commit Message

Heiner Kallweit Oct. 12, 2020, 8:17 a.m. UTC 
Simplify the code by using new function dev_fetch_sw_netstats().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 net/ipv4/ip_tunnel_core.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)
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Patch

diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
index b2ea1a8c5..25f1caf5a 100644
--- a/net/ipv4/ip_tunnel_core.c
+++ b/net/ipv4/ip_tunnel_core.c
@@ -433,29 +433,8 @@  EXPORT_SYMBOL(skb_tunnel_check_pmtu);
 void ip_tunnel_get_stats64(struct net_device *dev,
 			   struct rtnl_link_stats64 *tot)
 {
-	int i;
-
 	netdev_stats_to_stats64(tot, &dev->stats);
-
-	for_each_possible_cpu(i) {
-		const struct pcpu_sw_netstats *tstats =
-						   per_cpu_ptr(dev->tstats, i);
-		u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
-		unsigned int start;
-
-		do {
-			start = u64_stats_fetch_begin_irq(&tstats->syncp);
-			rx_packets = tstats->rx_packets;
-			tx_packets = tstats->tx_packets;
-			rx_bytes = tstats->rx_bytes;
-			tx_bytes = tstats->tx_bytes;
-		} while (u64_stats_fetch_retry_irq(&tstats->syncp, start));
-
-		tot->rx_packets += rx_packets;
-		tot->tx_packets += tx_packets;
-		tot->rx_bytes   += rx_bytes;
-		tot->tx_bytes   += tx_bytes;
-	}
+	dev_fetch_sw_netstats(tot, dev->tstats);
 }
 EXPORT_SYMBOL_GPL(ip_tunnel_get_stats64);