netdev - [PATCH net-next v2 10/12] mac80211: use new function dev_fetch_sw

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Message-ID: <93dda477-70ae-0ccf-71b4-bfebb66c9beb@gmail.com>
Date:   Mon, 12 Oct 2020 10:18:19 +0200
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Bjørn Mork <bjorn@...k.no>,
        Oliver Neukum <oneukum@...e.com>,
        Igor Mitsyanko <imitsyanko@...ntenna.com>,
        Sergey Matyukevich <geomatsi@...il.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        Roopa Prabhu <roopa@...dia.com>,
        Nikolay Aleksandrov <nikolay@...dia.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Johannes Berg <johannes@...solutions.net>,
        Pravin B Shelar <pshelar@....org>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        Herbert Xu <herbert@...dor.apana.org.au>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        linux-rdma@...r.kernel.org,
        Linux USB Mailing List <linux-usb@...r.kernel.org>,
        linux-wireless <linux-wireless@...r.kernel.org>,
        bridge@...ts.linux-foundation.org
Subject: [PATCH net-next v2 10/12] mac80211: use new function
 dev_fetch_sw_netstats

Simplify the code by using new function dev_fetch_sw_netstats().

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
 net/mac80211/iface.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 240862a74..1be775979 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -709,28 +709,7 @@ static u16 ieee80211_netdev_select_queue(struct net_device *dev,
 static void
 ieee80211_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
 {
-	int i;
-
-	for_each_possible_cpu(i) {
-		const struct pcpu_sw_netstats *tstats;
-		u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
-		unsigned int start;
-
-		tstats = per_cpu_ptr(dev->tstats, i);
-
-		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));
-
-		stats->rx_packets += rx_packets;
-		stats->tx_packets += tx_packets;
-		stats->rx_bytes   += rx_bytes;
-		stats->tx_bytes   += tx_bytes;
-	}
+	dev_fetch_sw_netstats(stats, dev->tstats);
 }
 
 static const struct net_device_ops ieee80211_dataif_ops = {
-- 
2.28.0