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authorJiri Pirko2017-05-23 09:11:59 +0200
committerDavid S. Miller2017-05-25 12:11:49 -0400
commitee538dcea28930bd95606fe00a834935d6fb5613 (patch)
tree79dde84b56787905c8e914c5f7e649459c50bd59
parentabc7a4ef843cf46a070374318fd239e2971c3b9b (diff)
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 <jiri@mellanox.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/sched/cls_api.c8
1 files 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