| Date | Tue, 24 Aug 2010 15:45:14 -0700 | From | Greg KH <> | Subject | [069/114] pkt_sched: Fix sch_sfq vs tcf_bind_filter oops |
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2.6.35-stable review patch. If anyone has any objections, please let us know.
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From: Jarek Poplawski <jarkao2@gmail.com>
[ Upstream commit eb4a5527b1f0d581ac217c80ef3278ed5e38693c ]
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 7d2681a6ff4f9ab5e48d02550b4c6338f1638998 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> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> --- net/sched/sch_sfq.c | 7 +++++++ 1 file changed, 7 insertions(+)
--- a/net/sched/sch_sfq.c +++ b/net/sched/sch_sfq.c @@ -502,6 +502,12 @@ static unsigned long sfq_get(struct Qdis 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); @@ -556,6 +562,7 @@ static void sfq_walk(struct Qdisc *sch, 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,
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