[PATCH net-next,v3 1/9] net/sched: cls_api: add helper for tc cls walker stats updating
From: Zhengchao Shao <hidden>
Date: 2022-09-15 06:28:57
Also in:
bpf, linux-kselftest
Subsystem:
networking [general], tc subsystem, the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Jamal Hadi Salim, Jiri Pirko, Linus Torvalds
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 <redacted> Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com> --- 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, + 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) {
--
2.17.1