net: sched: sch_atm: use Qdisc_class_common structure

Even if it is only for classid now, use this common struct a be aligned
with the rest of the classful qdiscs.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/sch_atm.c

@@ -41,6 +41,7 @@
 #define VCC2FLOW(vcc) ((struct atm_flow_data *) ((vcc)->user_back))
 
 struct atm_flow_data {
+	struct Qdisc_class_common common;
 	struct Qdisc		*q;	/* FIFO, TBF, etc. */
 	struct tcf_proto __rcu	*filter_list;
 	struct tcf_block	*block;
@@ -49,7 +50,6 @@ struct atm_flow_data {
 					   struct sk_buff *skb); /* chaining */
 	struct atm_qdisc_data	*parent;	/* parent qdisc */
 	struct socket		*sock;		/* for closing */
-	u32			classid;	/* x:y type ID */
 	int			ref;		/* reference count */
 	struct gnet_stats_basic_packed	bstats;
 	struct gnet_stats_queue	qstats;
@@ -75,7 +75,7 @@ static inline struct atm_flow_data *lookup_flow(struct Qdisc *sch, u32 classid)
 	struct atm_flow_data *flow;
 
 	list_for_each_entry(flow, &p->flows, list) {
-		if (flow->classid == classid)
+		if (flow->common.classid == classid)
 			return flow;
 	}
 	return NULL;
@@ -293,7 +293,7 @@ static int atm_tc_change(struct Qdisc *sch, u32 classid, u32 parent,
 	flow->old_pop = flow->vcc->pop;
 	flow->parent = p;
 	flow->vcc->pop = sch_atm_pop;
-	flow->classid = classid;
+	flow->common.classid = classid;
 	flow->ref = 1;
 	flow->excess = excess;
 	list_add(&flow->list, &p->link.list);
@@ -549,7 +549,7 @@ static int atm_tc_init(struct Qdisc *sch, struct nlattr *opt)
 
 	p->link.vcc = NULL;
 	p->link.sock = NULL;
-	p->link.classid = sch->handle;
+	p->link.common.classid = sch->handle;
 	p->link.ref = 1;
 	tasklet_init(&p->task, sch_atm_dequeue, (unsigned long)sch);
 	return 0;
@@ -594,7 +594,7 @@ static int atm_tc_dump_class(struct Qdisc *sch, unsigned long cl,
 		sch, p, flow, skb, tcm);
 	if (list_empty(&flow->list))
 		return -EINVAL;
-	tcm->tcm_handle = flow->classid;
+	tcm->tcm_handle = flow->common.classid;
 	tcm->tcm_info = flow->q->handle;
 
 	nest = nla_nest_start(skb, TCA_OPTIONS);
@@ -619,7 +619,7 @@ static int atm_tc_dump_class(struct Qdisc *sch, unsigned long cl,
 			goto nla_put_failure;
 	}
 	if (flow->excess) {
-		if (nla_put_u32(skb, TCA_ATM_EXCESS, flow->classid))
+		if (nla_put_u32(skb, TCA_ATM_EXCESS, flow->common.classid))
 			goto nla_put_failure;
 	} else {
 		if (nla_put_u32(skb, TCA_ATM_EXCESS, 0))