Subject: [PATCH net-next 12/12] xfrm: use new function dev_fetch_sw_netstats

From: Heiner Kallweit <[email-masked]>
Date: Sun, 11 Oct 2020 21:44:02 +0200

Simplify the code by using new function dev_fetch_sw_netstats().

Signed-off-by: Heiner Kallweit <[email-masked]>
---
 net/xfrm/xfrm_interface.c | 22 +---------------------
 1 file changed, 1 insertion(+), 21 deletions(-)

diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index 5b120936d..aa4cdcf69 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -541,27 +541,7 @@ static int xfrmi_update(struct xfrm_if *xi, struct xfrm_if_parms *p)
 static void xfrmi_get_stats64(struct net_device *dev,
 			       struct rtnl_link_stats64 *s)
 {
-	int cpu;
-
-	for_each_possible_cpu(cpu) {
-		struct pcpu_sw_netstats *stats;
-		struct pcpu_sw_netstats tmp;
-		int start;
-
-		stats = per_cpu_ptr(dev->tstats, cpu);
-		do {
-			start = u64_stats_fetch_begin_irq(&stats->syncp);
-			tmp.rx_packets = stats->rx_packets;
-			tmp.rx_bytes   = stats->rx_bytes;
-			tmp.tx_packets = stats->tx_packets;
-			tmp.tx_bytes   = stats->tx_bytes;
-		} while (u64_stats_fetch_retry_irq(&stats->syncp, start));
-
-		s->rx_packets += tmp.rx_packets;
-		s->rx_bytes   += tmp.rx_bytes;
-		s->tx_packets += tmp.tx_packets;
-		s->tx_bytes   += tmp.tx_bytes;
-	}
+	dev_fetch_sw_netstats(s, dev->tstats);
 
 	s->rx_dropped = dev->stats.rx_dropped;
 	s->tx_dropped = dev->stats.tx_dropped;
-- 
2.28.0