net_sched: Provide default walker function for actions
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index d1a022e..69cb848 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -274,8 +274,11 @@
if (!act->act || !act->dump || !act->cleanup || !act->init)
return -EINVAL;
+ /* Supply defaults */
if (!act->lookup)
act->lookup = tcf_hash_search;
+ if (!act->walk)
+ act->walk = tcf_generic_walker;
write_lock(&act_mod_lock);
for (ap = &act_base; (a = *ap) != NULL; ap = &a->next) {
@@ -1089,12 +1092,6 @@
memset(&a, 0, sizeof(struct tc_action));
a.ops = a_o;
- if (a_o->walk == NULL) {
- WARN(1, "tc_dump_action: %s !capable of dumping table\n",
- a_o->kind);
- goto out_module_put;
- }
-
nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
cb->nlh->nlmsg_type, sizeof(*t), 0);
if (!nlh)