From ee538dcea28930bd95606fe00a834935d6fb5613 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Tue, 23 May 2017 09:11:59 +0200 Subject: [PATCH] net: sched: cls_api: make reclassify return all the way back to the original tp With the introduction of chain goto action, the reclassification would cause the re-iteration of the actual chain. It makes more sense to restart the whole thing and re-iterate starting from the original tp - start of chain 0. Signed-off-by: Jiri Pirko Reviewed-by: Simon Horman Signed-off-by: David S. Miller --- net/sched/cls_api.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index 01a8b8b4bab8..89fbb35bc666 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -300,7 +300,8 @@ int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, __be16 protocol = tc_skb_protocol(skb); #ifdef CONFIG_NET_CLS_ACT const int max_reclassify_loop = 4; - const struct tcf_proto *old_tp = tp; + const struct tcf_proto *orig_tp = tp; + const struct tcf_proto *first_tp; int limit = 0; reclassify: @@ -315,9 +316,10 @@ reclassify: err = tp->classify(skb, tp, res); #ifdef CONFIG_NET_CLS_ACT if (unlikely(err == TC_ACT_RECLASSIFY && !compat_mode)) { + first_tp = orig_tp; goto reset; } else if (unlikely(TC_ACT_EXT_CMP(err, TC_ACT_GOTO_CHAIN))) { - old_tp = res->goto_tp; + first_tp = res->goto_tp; goto reset; } #endif @@ -335,7 +337,7 @@ reset: return TC_ACT_SHOT; } - tp = old_tp; + tp = first_tp; protocol = tc_skb_protocol(skb); goto reclassify; #endif -- 2.30.2