[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, 25 insertions, 24 deletions

diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c
index d88fea9..6c4ad7e 100644
--- a/net/sched/sch_tbf.c
+++ b/net/sched/sch_tbf.c
@@ -245,20 +245,21 @@ static void tbf_reset(struct Qdisc* sch)
 static struct Qdisc *tbf_create_dflt_qdisc(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)), 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;
+		nla = kmalloc(nla_attr_size(sizeof(struct tc_fifo_qopt)),
+			      GFP_KERNEL);
+		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;
@@ -269,30 +270,30 @@ static struct Qdisc *tbf_create_dflt_qdisc(struct Qdisc *sch, u32 limit)
 	return NULL;
 }
 
-static int tbf_change(struct Qdisc* sch, struct rtattr *opt)
+static int tbf_change(struct Qdisc* sch, struct nlattr *opt)
 {
 	int err = -EINVAL;
 	struct tbf_sched_data *q = qdisc_priv(sch);
-	struct rtattr *tb[TCA_TBF_PTAB];
+	struct nlattr *tb[TCA_TBF_PTAB + 1];
 	struct tc_tbf_qopt *qopt;
 	struct qdisc_rate_table *rtab = NULL;
 	struct qdisc_rate_table *ptab = NULL;
 	struct Qdisc *child = NULL;
 	int max_size,n;
 
-	if (rtattr_parse_nested(tb, TCA_TBF_PTAB, opt) ||
-	    tb[TCA_TBF_PARMS-1] == NULL ||
-	    RTA_PAYLOAD(tb[TCA_TBF_PARMS-1]) < sizeof(*qopt))
+	if (nla_parse_nested(tb, TCA_TBF_PTAB, opt, NULL) ||
+	    tb[TCA_TBF_PARMS] == NULL ||
+	    nla_len(tb[TCA_TBF_PARMS]) < sizeof(*qopt))
 		goto done;
 
-	qopt = RTA_DATA(tb[TCA_TBF_PARMS-1]);
-	rtab = qdisc_get_rtab(&qopt->rate, tb[TCA_TBF_RTAB-1]);
+	qopt = nla_data(tb[TCA_TBF_PARMS]);
+	rtab = qdisc_get_rtab(&qopt->rate, tb[TCA_TBF_RTAB]);
 	if (rtab == NULL)
 		goto done;
 
 	if (qopt->peakrate.rate) {
 		if (qopt->peakrate.rate > qopt->rate.rate)
-			ptab = qdisc_get_rtab(&qopt->peakrate, tb[TCA_TBF_PTAB-1]);
+			ptab = qdisc_get_rtab(&qopt->peakrate, tb[TCA_TBF_PTAB]);
 		if (ptab == NULL)
 			goto done;
 	}
@@ -339,7 +340,7 @@ done:
 	return err;
 }
 
-static int tbf_init(struct Qdisc* sch, struct rtattr *opt)
+static int tbf_init(struct Qdisc* sch, struct nlattr *opt)
 {
 	struct tbf_sched_data *q = qdisc_priv(sch);
 
@@ -371,11 +372,11 @@ static int tbf_dump(struct Qdisc *sch, struct sk_buff *skb)
 {
 	struct tbf_sched_data *q = qdisc_priv(sch);
 	unsigned char *b = skb_tail_pointer(skb);
-	struct rtattr *rta;
+	struct nlattr *nla;
 	struct tc_tbf_qopt opt;
 
-	rta = (struct rtattr*)b;
-	RTA_PUT(skb, TCA_OPTIONS, 0, NULL);
+	nla = (struct nlattr*)b;
+	NLA_PUT(skb, TCA_OPTIONS, 0, NULL);
 
 	opt.limit = q->limit;
 	opt.rate = q->R_tab->rate;
@@ -385,12 +386,12 @@ static int tbf_dump(struct Qdisc *sch, struct sk_buff *skb)
 		memset(&opt.peakrate, 0, sizeof(opt.peakrate));
 	opt.mtu = q->mtu;
 	opt.buffer = q->buffer;
-	RTA_PUT(skb, TCA_TBF_PARMS, sizeof(opt), &opt);
-	rta->rta_len = skb_tail_pointer(skb) - b;
+	NLA_PUT(skb, TCA_TBF_PARMS, sizeof(opt), &opt);
+	nla->nla_len = skb_tail_pointer(skb) - b;
 
 	return skb->len;
 
-rtattr_failure:
+nla_put_failure:
 	nlmsg_trim(skb, b);
 	return -1;
 }
@@ -442,7 +443,7 @@ static void tbf_put(struct Qdisc *sch, unsigned long arg)
 }
 
 static int tbf_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
-			    struct rtattr **tca, unsigned long *arg)
+			    struct nlattr **tca, unsigned long *arg)
 {
 	return -ENOSYS;
 }