Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: [PATCH net-next 04/12] net: usb: qmi_wwan: use new function
 dev_fetch_sw_netstats
From:   Heiner Kallweit <hkallweit1@gmail.com>
To:     David Miller <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        =?UTF-8?Q?Bj=c3=b8rn_Mork?= <bjorn@mork.no>,
        Oliver Neukum <oneukum@suse.com>,
        Igor Mitsyanko <imitsyanko@quantenna.com>,
        Sergey Matyukevich <geomatsi@gmail.com>,
        Kalle Valo <kvalo@codeaurora.org>,
        Roopa Prabhu <roopa@nvidia.com>,
        Nikolay Aleksandrov <nikolay@nvidia.com>,
        Andrew Lunn <andrew@lunn.ch>,
        Vivien Didelot <vivien.didelot@gmail.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Vladimir Oltean <olteanv@gmail.com>,
        Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
        Johannes Berg <johannes@sipsolutions.net>,
        Pravin B Shelar <pshelar@ovn.org>,
        Steffen Klassert <steffen.klassert@secunet.com>,
        Herbert Xu <herbert@gondor.apana.org.au>
Cc:     "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
        linux-rdma@vger.kernel.org,
        Linux USB Mailing List <linux-usb@vger.kernel.org>,
        linux-wireless <linux-wireless@vger.kernel.org>,
        bridge@lists.linux-foundation.org
References: <a46f539e-a54d-7e92-0372-cd96bb280729@gmail.com>
Message-ID: <9cde03fe-d032-521d-2d34-34429d6d1a1c@gmail.com>
Date:   Sun, 11 Oct 2020 21:38:44 +0200
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101
 Thunderbird/68.12.1
MIME-Version: 1.0
In-Reply-To: <a46f539e-a54d-7e92-0372-cd96bb280729@gmail.com>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Precedence: bulk

Simplify the code by using new function dev_fetch_sw_netstats().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 drivers/net/usb/qmi_wwan.c | 24 +-----------------------
 1 file changed, 1 insertion(+), 23 deletions(-)

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 5ca1356b8..a322f5187 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -126,31 +126,9 @@ static void qmimux_get_stats64(struct net_device *net,
 			       struct rtnl_link_stats64 *stats)
 {
 	struct qmimux_priv *priv = 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(priv->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, priv->stats64);
 }
 
 static const struct net_device_ops qmimux_netdev_ops = {
-- 
2.28.0