[NET_SCHED]: Convert packet schedulers from rtnetlink to new netlink API

Convert packet schedulers to use the netlink API. Unfortunately a gradual
conversion is not possible without breaking compilation in the middle or
adding lots of casts, so this patch converts them all in one step. The
patch has been mostly generated automatically with some minor edits to
at least allow seperate conversion of classifiers and actions.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 27 insertions, 25 deletions

diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index f1e9647..6ce8da5 100644
--- a/net/sched/sch_red.c
+++ b/net/sched/sch_red.c
@@ -177,21 +177,21 @@ static void red_destroy(struct Qdisc *sch)
 static struct Qdisc *red_create_dflt(struct Qdisc *sch, u32 limit)
 {
 	struct Qdisc *q;
-	struct rtattr *rta;
+	struct nlattr *nla;
 	int ret;
 
 	q = qdisc_create_dflt(sch->dev, &bfifo_qdisc_ops,
 			      TC_H_MAKE(sch->handle, 1));
 	if (q) {
-		rta = kmalloc(RTA_LENGTH(sizeof(struct tc_fifo_qopt)),
+		nla = kmalloc(nla_attr_size(sizeof(struct tc_fifo_qopt)),
 			      GFP_KERNEL);
-		if (rta) {
-			rta->rta_type = RTM_NEWQDISC;
-			rta->rta_len = RTA_LENGTH(sizeof(struct tc_fifo_qopt));
-			((struct tc_fifo_qopt *)RTA_DATA(rta))->limit = limit;
+		if (nla) {
+			nla->nla_type = RTM_NEWQDISC;
+			nla->nla_len = nla_attr_size(sizeof(struct tc_fifo_qopt));
+			((struct tc_fifo_qopt *)nla_data(nla))->limit = limit;
 
-			ret = q->ops->change(q, rta);
-			kfree(rta);
+			ret = q->ops->change(q, nla);
+			kfree(nla);
 
 			if (ret == 0)
 				return q;
@@ -201,23 +201,23 @@ static struct Qdisc *red_create_dflt(struct Qdisc *sch, u32 limit)
 	return NULL;
 }
 
-static int red_change(struct Qdisc *sch, struct rtattr *opt)
+static int red_change(struct Qdisc *sch, struct nlattr *opt)
 {
 	struct red_sched_data *q = qdisc_priv(sch);
-	struct rtattr *tb[TCA_RED_MAX];
+	struct nlattr *tb[TCA_RED_MAX + 1];
 	struct tc_red_qopt *ctl;
 	struct Qdisc *child = NULL;
 
-	if (opt == NULL || rtattr_parse_nested(tb, TCA_RED_MAX, opt))
+	if (opt == NULL || nla_parse_nested(tb, TCA_RED_MAX, opt, NULL))
 		return -EINVAL;
 
-	if (tb[TCA_RED_PARMS-1] == NULL ||
-	    RTA_PAYLOAD(tb[TCA_RED_PARMS-1]) < sizeof(*ctl) ||
-	    tb[TCA_RED_STAB-1] == NULL ||
-	    RTA_PAYLOAD(tb[TCA_RED_STAB-1]) < RED_STAB_SIZE)
+	if (tb[TCA_RED_PARMS] == NULL ||
+	    nla_len(tb[TCA_RED_PARMS]) < sizeof(*ctl) ||
+	    tb[TCA_RED_STAB] == NULL ||
+	    nla_len(tb[TCA_RED_STAB]) < RED_STAB_SIZE)
 		return -EINVAL;
 
-	ctl = RTA_DATA(tb[TCA_RED_PARMS-1]);
+	ctl = nla_data(tb[TCA_RED_PARMS]);
 
 	if (ctl->limit > 0) {
 		child = red_create_dflt(sch, ctl->limit);
@@ -235,7 +235,7 @@ static int red_change(struct Qdisc *sch, struct rtattr *opt)
 
 	red_set_parms(&q->parms, ctl->qth_min, ctl->qth_max, ctl->Wlog,
 				 ctl->Plog, ctl->Scell_log,
-				 RTA_DATA(tb[TCA_RED_STAB-1]));
+				 nla_data(tb[TCA_RED_STAB]));
 
 	if (skb_queue_empty(&sch->q))
 		red_end_of_idle_period(&q->parms);
@@ -244,7 +244,7 @@ static int red_change(struct Qdisc *sch, struct rtattr *opt)
 	return 0;
 }
 
-static int red_init(struct Qdisc* sch, struct rtattr *opt)
+static int red_init(struct Qdisc* sch, struct nlattr *opt)
 {
 	struct red_sched_data *q = qdisc_priv(sch);
 
@@ -255,7 +255,7 @@ static int red_init(struct Qdisc* sch, struct rtattr *opt)
 static int red_dump(struct Qdisc *sch, struct sk_buff *skb)
 {
 	struct red_sched_data *q = qdisc_priv(sch);
-	struct rtattr *opts = NULL;
+	struct nlattr *opts = NULL;
 	struct tc_red_qopt opt = {
 		.limit		= q->limit,
 		.flags		= q->flags,
@@ -266,12 +266,14 @@ static int red_dump(struct Qdisc *sch, struct sk_buff *skb)
 		.Scell_log	= q->parms.Scell_log,
 	};
 
-	opts = RTA_NEST(skb, TCA_OPTIONS);
-	RTA_PUT(skb, TCA_RED_PARMS, sizeof(opt), &opt);
-	return RTA_NEST_END(skb, opts);
+	opts = nla_nest_start(skb, TCA_OPTIONS);
+	if (opts == NULL)
+		goto nla_put_failure;
+	NLA_PUT(skb, TCA_RED_PARMS, sizeof(opt), &opt);
+	return nla_nest_end(skb, opts);
 
-rtattr_failure:
-	return RTA_NEST_CANCEL(skb, opts);
+nla_put_failure:
+	return nla_nest_cancel(skb, opts);
 }
 
 static int red_dump_stats(struct Qdisc *sch, struct gnet_dump *d)
@@ -332,7 +334,7 @@ static void red_put(struct Qdisc *sch, unsigned long arg)
 }
 
 static int red_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
-			    struct rtattr **tca, unsigned long *arg)
+			    struct nlattr **tca, unsigned long *arg)
 {
 	return -ENOSYS;
 }