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Diffstat (limited to 'net/sched/sch_red.c')
-rw-r--r--net/sched/sch_red.c64
1 files changed, 37 insertions, 27 deletions
diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index 9b95fefb70f..3dcd493f4f4 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 +201,31 @@ static struct Qdisc *red_create_dflt(struct Qdisc *sch, u32 limit)
return NULL;
}
-static int red_change(struct Qdisc *sch, struct rtattr *opt)
+static const struct nla_policy red_policy[TCA_RED_MAX + 1] = {
+ [TCA_RED_PARMS] = { .len = sizeof(struct tc_red_qopt) },
+ [TCA_RED_STAB] = { .len = RED_STAB_SIZE },
+};
+
+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;
+ int err;
- if (opt == NULL || rtattr_parse_nested(tb, TCA_RED_MAX, opt))
+ if (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)
+ err = nla_parse_nested(tb, TCA_RED_MAX, opt, red_policy);
+ if (err < 0)
+ return err;
+
+ if (tb[TCA_RED_PARMS] == NULL ||
+ tb[TCA_RED_STAB] == NULL)
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 +243,7 @@ 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 +252,7 @@ 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 +263,7 @@ 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 +274,14 @@ 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 +342,7 @@ 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;
}
@@ -359,7 +369,7 @@ static struct tcf_proto **red_find_tcf(struct Qdisc *sch, unsigned long cl)
return NULL;
}
-static struct Qdisc_class_ops red_class_ops = {
+static const struct Qdisc_class_ops red_class_ops = {
.graft = red_graft,
.leaf = red_leaf,
.get = red_get,
@@ -371,7 +381,7 @@ static struct Qdisc_class_ops red_class_ops = {
.dump = red_dump_class,
};
-static struct Qdisc_ops red_qdisc_ops = {
+static struct Qdisc_ops red_qdisc_ops __read_mostly = {
.id = "red",
.priv_size = sizeof(struct red_sched_data),
.cl_ops = &red_class_ops,