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Date:   Thu, 15 Sep 2022 16:23:10 -0700
From:   Cong Wang <>
To:     Zhengchao Shao <>
Subject: Re: [PATCH net-next,v3 1/9] net/sched: cls_api: add helper for tc
 cls walker stats updating

On Thu, Sep 15, 2022 at 02:30:30PM +0800, Zhengchao Shao wrote:
> 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: Zhengchao Shao <>
> Reviewed-by: Jamal Hadi Salim <>
> ---
>  include/net/pkt_cls.h | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
> index d9d90e6925e1..d3cbbabf7592 100644
> --- a/include/net/pkt_cls.h
> +++ b/include/net/pkt_cls.h
> @@ -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_update(struct tcf_proto *tp,

This function name is confusing, I don't think it updates anything,
probably we only dump stats when calling ->walk(). Please use a better
name here, like tc_cls_stats_dump().


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