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>
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@ -513,6 +513,12 @@ static unsigned long sfq_get(struct Qdisc *sch, u32 classid)
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return 0;
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}
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static unsigned long sfq_bind(struct Qdisc *sch, unsigned long parent,
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u32 classid)
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{
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return 0;
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}
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static struct tcf_proto **sfq_find_tcf(struct Qdisc *sch, unsigned long cl)
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{
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struct sfq_sched_data *q = qdisc_priv(sch);
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@ -567,6 +573,7 @@ static void sfq_walk(struct Qdisc *sch, struct qdisc_walker *arg)
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static const struct Qdisc_class_ops sfq_class_ops = {
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.get = sfq_get,
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.tcf_chain = sfq_find_tcf,
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.bind_tcf = sfq_bind,
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.dump = sfq_dump_class,
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.dump_stats = sfq_dump_class_stats,
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.walk = sfq_walk,
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