From d7a68e564e29bcd1c70d76d9e2f65591e6183f46 Mon Sep 17 00:00:00 2001 From: Zhengchao Shao Date: Wed, 21 Sep 2022 10:41:04 +0800 Subject: [PATCH] net/sched: sch_api: add helper for tc qdisc walker stats dump MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The walk implementation of most qdisc class 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 Acked-by: Toke Høiland-Jørgensen Signed-off-by: Jakub Kicinski --- include/net/pkt_sched.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h index 29f6563..2ff80cd 100644 --- a/include/net/pkt_sched.h +++ b/include/net/pkt_sched.h @@ -222,4 +222,17 @@ static inline struct tc_skb_cb *tc_skb_cb(const struct sk_buff *skb) return cb; } +static inline bool tc_qdisc_stats_dump(struct Qdisc *sch, + unsigned long cl, + struct qdisc_walker *arg) +{ + if (arg->count >= arg->skip && arg->fn(sch, cl, arg) < 0) { + arg->stop = 1; + return false; + } + + arg->count++; + return true; +} + #endif -- 2.7.4