pkt_sched: Kill stats_lock member of struct Qdisc.

It is always equal to qdisc->dev_queue->lock

Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 4 insertions, 6 deletions

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 4003c280b69f..e73bd68aa7ae 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -604,7 +604,6 @@ qdisc_create(struct net_device *dev, struct netdev_queue *dev_queue,
 
         sch->parent = parent;
 
-        sch->stats_lock = &dev_queue->lock;
         if (handle == TC_H_INGRESS) {
                 sch->flags |= TCQ_F_INGRESS;
                 handle = TC_H_MAKE(TC_H_INGRESS, 0);
@@ -622,7 +621,7 @@ qdisc_create(struct net_device *dev, struct netdev_queue *dev_queue,
         if (!ops->init || (err = ops->init(sch, tca[TCA_OPTIONS])) == 0) {
                 if (tca[TCA_RATE]) {
                         err = gen_new_estimator(&sch->bstats, &sch->rate_est,
-                                                sch->stats_lock,
+                                                &sch->dev_queue->lock,
                                                 tca[TCA_RATE]);
                         if (err) {
                                 /*
@@ -664,7 +663,7 @@ static int qdisc_change(struct Qdisc *sch, struct nlattr **tca)
         }
         if (tca[TCA_RATE])
                 gen_replace_estimator(&sch->bstats, &sch->rate_est,
-                        sch->stats_lock, tca[TCA_RATE]);
+                                      &sch->dev_queue->lock, tca[TCA_RATE]);
         return 0;
 }
 
@@ -954,7 +953,7 @@ static int tc_fill_qdisc(struct sk_buff *skb, struct Qdisc *q, u32 clid,
         q->qstats.qlen = q->q.qlen;
 
         if (gnet_stats_start_copy_compat(skb, TCA_STATS2, TCA_STATS,
-                        TCA_XSTATS, q->stats_lock, &d) < 0)
+                                         TCA_XSTATS, &q->dev_queue->lock, &d) < 0)
                 goto nla_put_failure;
 
         if (q->ops->dump_stats && q->ops->dump_stats(q, &d) < 0)
@@ -1203,7 +1202,7 @@ static int tc_fill_tclass(struct sk_buff *skb, struct Qdisc *q,
                 goto nla_put_failure;
 
         if (gnet_stats_start_copy_compat(skb, TCA_STATS2, TCA_STATS,
-                        TCA_XSTATS, q->stats_lock, &d) < 0)
+                                         TCA_XSTATS, &q->dev_queue->lock, &d) < 0)
                 goto nla_put_failure;
 
         if (cl_ops->dump_stats && cl_ops->dump_stats(q, cl, &d) < 0)
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 3223e5ba76aa..dda78ee314ec 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -484,7 +484,6 @@ struct Qdisc * qdisc_create_dflt(struct net_device *dev,
         sch = qdisc_alloc(dev_queue, ops);
         if (IS_ERR(sch))
                 goto errout;
-        sch->stats_lock = &dev_queue->lock;
         sch->parent = parentid;
 
         if (!ops->init || ops->init(sch, NULL) == 0)