Commit fe0df81d authored by Zhengchao Shao's avatar Zhengchao Shao Committed by Jakub Kicinski
Browse files

net/sched: cls_api: add helper for tc cls walker stats dump 



The walk implementation of most tc cls modules is basically the same.
That is, the values of count and skip are checked first. If count is
greater than or equal to skip, the registered fn function is executed.
Otherwise, increase the value of count. So we can reconstruct them.

Signed-off-by: default avatarZhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: default avatarJamal Hadi Salim <jhs@mojatatu.com>
Reviewed-by: default avatarVictor Nogueira <victor@mojatatu.com>
Tested-by: default avatarVictor Nogueira <victor@mojatatu.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent e93a766d

include/net/pkt_cls.h

+13 −0
Original line number Diff line number Diff line
@@ -81,6 +81,19 @@ int tcf_classify(struct sk_buff *skb, 
		 const struct tcf_proto *tp, struct tcf_result *res,

		 bool compat_mode);



static inline bool tc_cls_stats_dump(struct tcf_proto *tp,

				     struct tcf_walker *arg,

				     void *filter)

{

	if (arg->count >= arg->skip && arg->fn(tp, filter, arg) < 0) {

		arg->stop = 1;

		return false;

	}



	arg->count++;

	return true;

}



#else

static inline bool tcf_block_shared(struct tcf_block *block)

{