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pkt_sched: Fix sch_sfq vs tcf_bind_filter oops 

Since there was added ->tcf_chain() method without ->bind_tcf() to
sch_sfq class options, there is oops when a filter is added with
the classid parameter.

Fixes commit 7d2681a6ff
netdev thread: null pointer at cls_api.c

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Reported-by: Franchoze Eric <franchoze@yandex.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jarek Poplawski 2010-08-06 00:22:35 +00:00 committed by David S. Miller
parent cece1945bf
commit eb4a5527b1
1 changed files with 7 additions and 0 deletions
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7
net/sched/sch_sfq.c
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@ -513,6 +513,12 @@ static unsigned long sfq_get(struct Qdisc *sch, u32 classid)
return 0;
}
static unsigned long sfq_bind(struct Qdisc *sch, unsigned long parent,
u32 classid)
{
return 0;
}
static struct tcf_proto **sfq_find_tcf(struct Qdisc *sch, unsigned long cl)
{
struct sfq_sched_data *q = qdisc_priv(sch);
@ -567,6 +573,7 @@ static void sfq_walk(struct Qdisc *sch, struct qdisc_walker *arg)
static const struct Qdisc_class_ops sfq_class_ops = {
.get = sfq_get,
.tcf_chain = sfq_find_tcf,
.bind_tcf = sfq_bind,
.dump = sfq_dump_class,
.dump_stats = sfq_dump_class_stats,
.walk = sfq_walk,