From 2d5c27dafe63fb8a2e879f3e8f8a73a83a97d5df Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Tue, 10 Nov 2020 20:48:14 +0100 Subject: qmi_wwan: switch to core handling of rx/tx byte/packet counters MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use netdev->tstats instead of a member of qmimux_priv for storing a pointer to the per-cpu counters. This allows us to use core functionality for statistics handling. Signed-off-by: Heiner Kallweit Acked-by: Bjørn Mork Signed-off-by: Jakub Kicinski --- drivers/net/usb/qmi_wwan.c | 39 ++++++++------------------------------- 1 file changed, 8 insertions(+), 31 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 581ed51abb53..b9d74d9a7301 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -72,7 +72,6 @@ struct qmimux_hdr { struct qmimux_priv { struct net_device *real_dev; u8 mux_id; - struct pcpu_sw_netstats __percpu *stats64; }; static int qmimux_open(struct net_device *dev) @@ -108,34 +107,19 @@ static netdev_tx_t qmimux_start_xmit(struct sk_buff *skb, struct net_device *dev skb->dev = priv->real_dev; ret = dev_queue_xmit(skb); - if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) { - struct pcpu_sw_netstats *stats64 = this_cpu_ptr(priv->stats64); - - u64_stats_update_begin(&stats64->syncp); - stats64->tx_packets++; - stats64->tx_bytes += len; - u64_stats_update_end(&stats64->syncp); - } else { + if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) + dev_sw_netstats_tx_add(dev, 1, len); + else dev->stats.tx_dropped++; - } return ret; } -static void qmimux_get_stats64(struct net_device *net, - struct rtnl_link_stats64 *stats) -{ - struct qmimux_priv *priv = netdev_priv(net); - - netdev_stats_to_stats64(stats, &net->stats); - dev_fetch_sw_netstats(stats, priv->stats64); -} - static const struct net_device_ops qmimux_netdev_ops = { .ndo_open = qmimux_open, .ndo_stop = qmimux_stop, .ndo_start_xmit = qmimux_start_xmit, - .ndo_get_stats64 = qmimux_get_stats64, + .ndo_get_stats64 = dev_get_tstats64, }; static void qmimux_setup(struct net_device *dev) @@ -224,14 +208,7 @@ static int qmimux_rx_fixup(struct usbnet *dev, struct sk_buff *skb) net->stats.rx_errors++; return 0; } else { - struct pcpu_sw_netstats *stats64; - struct qmimux_priv *priv = netdev_priv(net); - - stats64 = this_cpu_ptr(priv->stats64); - u64_stats_update_begin(&stats64->syncp); - stats64->rx_packets++; - stats64->rx_bytes += pkt_len; - u64_stats_update_end(&stats64->syncp); + dev_sw_netstats_rx_add(net, pkt_len); } skip: @@ -256,8 +233,8 @@ static int qmimux_register_device(struct net_device *real_dev, u8 mux_id) priv->mux_id = mux_id; priv->real_dev = real_dev; - priv->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); - if (!priv->stats64) { + new_dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); + if (!new_dev->tstats) { err = -ENOBUFS; goto out_free_newdev; } @@ -292,7 +269,7 @@ static void qmimux_unregister_device(struct net_device *dev, struct qmimux_priv *priv = netdev_priv(dev); struct net_device *real_dev = priv->real_dev; - free_percpu(priv->stats64); + free_percpu(dev->tstats); netdev_upper_dev_unlink(real_dev, dev); unregister_netdevice_queue(dev, head); -- cgit v1.2.3