net: sched: act: handle extack in tcf_generic_walker
This patch adds extack handling for a common used TC act function
"tcf_generic_walker()" to add an extack message on failures.
The tcf_generic_walker() function can fail if get a invalid command
different than DEL and GET. The naming "action" here is wrong, the
correct naming would be command.
Cc: David Ahern <dsahern@gmail.com>
Signed-off-by: Alexander Aring <aring@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/act_api.h b/include/net/act_api.h
index ab352925..9c2f226 100644
--- a/include/net/act_api.h
+++ b/include/net/act_api.h
@@ -140,7 +140,8 @@ static inline void tc_action_net_exit(struct list_head *net_list,
int tcf_generic_walker(struct tc_action_net *tn, struct sk_buff *skb,
struct netlink_callback *cb, int type,
- const struct tc_action_ops *ops);
+ const struct tc_action_ops *ops,
+ struct netlink_ext_ack *extack);
int tcf_idr_search(struct tc_action_net *tn, struct tc_action **a, u32 index);
bool tcf_idr_check(struct tc_action_net *tn, u32 index, struct tc_action **a,
int bind);
