TBF: do not oops when user tries to attach/show filter
Subsystems (2)
PATCH 1/1 TBF: do not oops when user tries to attach/show filter
TBF does not allow attaching filters; implement dummy tcf_chain method to avoid oopsing.
Signature · 42 lines
Dmitry =================================================================== [email protected], 2004-05-25 22:54:30-05:00, [email protected] [NET_SCHED] Do not oops when user tries to attach a filter to a TBF qdisc. (TBF does not allow attaching filters as it has only one class, filter should be attached either to TBF's parent or to its child) sch_tbf.c | 6 ++++++ 1 files changed, 6 insertions(+) =================================================================== diff -Nru a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c --- a/net/sched/sch_tbf.c 2004-05-25 22:57:37 -05:00 +++ b/net/sched/sch_tbf.c 2004-05-25 22:57:37 -05:00 @@ -495,6 +495,11 @@ } } +static struct tcf_proto **tbf_find_tcf(struct Qdisc *sch, unsigned long cl) +{ + return NULL; +} + static struct Qdisc_class_ops tbf_class_ops = { .graft = tbf_graft, @@ -504,6 +509,7 @@ .change = tbf_change_class, .delete = tbf_delete, .walk = tbf_walk, + .tcf_chain = tbf_find_tcf, .dump = tbf_dump_class, };