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Subject: [PATCH net-next 02/12] IB/hfi1: 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: <b87c6e8c-13f9-831f-a65b-0fc7707e658e@gmail.com>
Date:   Sun, 11 Oct 2020 21:37:27 +0200
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Simplify the code by using new function dev_fetch_sw_netstats().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 drivers/infiniband/hw/hfi1/ipoib_main.c | 34 +------------------------
 1 file changed, 1 insertion(+), 33 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/ipoib_main.c b/drivers/infiniband/hw/hfi1/ipoib_main.c
index 014351ebb..9f71b9d70 100644
--- a/drivers/infiniband/hw/hfi1/ipoib_main.c
+++ b/drivers/infiniband/hw/hfi1/ipoib_main.c
@@ -97,41 +97,9 @@ static void hfi1_ipoib_dev_get_stats64(struct net_device *dev,
 				       struct rtnl_link_stats64 *storage)
 {
 	struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev);
-	u64 rx_packets = 0ull;
-	u64 rx_bytes = 0ull;
-	u64 tx_packets = 0ull;
-	u64 tx_bytes = 0ull;
-	int i;
 
 	netdev_stats_to_stats64(storage, &dev->stats);
-
-	for_each_possible_cpu(i) {
-		const struct pcpu_sw_netstats *stats;
-		unsigned int start;
-		u64 trx_packets;
-		u64 trx_bytes;
-		u64 ttx_packets;
-		u64 ttx_bytes;
-
-		stats = per_cpu_ptr(priv->netstats, i);
-		do {
-			start = u64_stats_fetch_begin_irq(&stats->syncp);
-			trx_packets = stats->rx_packets;
-			trx_bytes = stats->rx_bytes;
-			ttx_packets = stats->tx_packets;
-			ttx_bytes = stats->tx_bytes;
-		} while (u64_stats_fetch_retry_irq(&stats->syncp, start));
-
-		rx_packets += trx_packets;
-		rx_bytes += trx_bytes;
-		tx_packets += ttx_packets;
-		tx_bytes += ttx_bytes;
-	}
-
-	storage->rx_packets += rx_packets;
-	storage->rx_bytes += rx_bytes;
-	storage->tx_packets += tx_packets;
-	storage->tx_bytes += tx_bytes;
+	dev_fetch_sw_netstats(storage, priv->netstats);
 }
 
 static const struct net_device_ops hfi1_ipoib_netdev_ops = {
-- 
2.28.0