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Commit 3e9e5a59 authored by Jarek Poplawski's avatar Jarek Poplawski Committed by David S. Miller
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pkt_sched: Check .walk and .leaf class handlers 



Require qdisc class ops .walk and .leaf for classful qdisc in
register_qdisc(). The checks could be done later insted, but these
ops are really needed and used by most of classful qdiscs.

Signed-off-by: default avatarJarek Poplawski <jarkao2@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 41065fba

net/sched/sch_api.c

+1 −1
Original line number Diff line number Diff line
@@ -161,7 +161,7 @@ int register_qdisc(struct Qdisc_ops *qops) 
	if (qops->cl_ops) {

		const struct Qdisc_class_ops *cops = qops->cl_ops;



		if (!(cops->get && cops->put))

		if (!(cops->get && cops->put && cops->walk && cops->leaf))

			goto out_einval;



		if (cops->tcf_chain && !(cops->bind_tcf && cops->unbind_tcf))