sch_teql: Use net_device internal stats

We can slightly reduce size of teqlN structure, not duplicating stats
structure in teql_master but using stats field from net_device.stats
for tx_errors and from netdev_queue for tx_bytes/tx_packets/tx_dropped
values.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index 3b64182..428a5ef 100644 (file)
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -58,7 +58,6 @@ struct teql_master
        struct net_device *dev;
        struct Qdisc *slaves;
        struct list_head master_list;
-       struct net_device_stats stats;
 };
 
 struct teql_sched_data
@@ -272,6 +271,7 @@ static inline int teql_resolve(struct sk_buff *skb,
 static int teql_master_xmit(struct sk_buff *skb, struct net_device *dev)
 {
        struct teql_master *master = netdev_priv(dev);
+       struct netdev_queue *txq = netdev_get_tx_queue(dev, 0);
        struct Qdisc *start, *q;
        int busy;
        int nores;
@@ -311,8 +311,8 @@ restart:
                                        __netif_tx_unlock(slave_txq);
                                        master->slaves = NEXT_SLAVE(q);
                                        netif_wake_queue(dev);
-                                       master->stats.tx_packets++;
-                                       master->stats.tx_bytes += length;
+                                       txq->tx_packets++;
+                                       txq->tx_bytes += length;
                                        return 0;
                                }
                                __netif_tx_unlock(slave_txq);
@@ -339,10 +339,10 @@ restart:
                netif_stop_queue(dev);
                return 1;
        }
-       master->stats.tx_errors++;
+       dev->stats.tx_errors++;
 
 drop:
-       master->stats.tx_dropped++;
+       txq->tx_dropped++;
        dev_kfree_skb(skb);
        return 0;
 }
@@ -395,12 +395,6 @@ static int teql_master_close(struct net_device *dev)
        return 0;
 }
 
-static struct net_device_stats *teql_master_stats(struct net_device *dev)
-{
-       struct teql_master *m = netdev_priv(dev);
-       return &m->stats;
-}
-
 static int teql_master_mtu(struct net_device *dev, int new_mtu)
 {
        struct teql_master *m = netdev_priv(dev);
@@ -425,7 +419,6 @@ static const struct net_device_ops teql_netdev_ops = {
        .ndo_open       = teql_master_open,
        .ndo_stop       = teql_master_close,
        .ndo_start_xmit = teql_master_xmit,
-       .ndo_get_stats  = teql_master_stats,
        .ndo_change_mtu = teql_master_mtu,
 };