[PATCH 3.17 07/25] net_sched: copy exts->type in tcf_exts_change()

[Greg Kroah-Hartman]

3.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: WANG Cong <xiyou.wangcong@xxxxxxxxx>

[ Upstream commit 5301e3e117d88ef0967ce278912e54757f1a31a2 ]

We need to copy exts->type when committing the change, otherwise
it would be always 0. This is a quick fix for -net and -stable,
for net-next tcf_exts will be removed.

Fixes: commit 33be627159913b094bb578e83 ("net_sched: act: use standard struct list_head")
Reported-by: Jamal Hadi Salim <jhs@xxxxxxxxxxxx>
Cc: Jamal Hadi Salim <jhs@xxxxxxxxxxxx>
Cc: John Fastabend <john.fastabend@xxxxxxxxx>
Signed-off-by: Cong Wang <xiyou.wangcong@xxxxxxxxx>
Acked-by: Jamal Hadi Salim <jhs@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 net/sched/cls_api.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -549,6 +549,7 @@ void tcf_exts_change(struct tcf_proto *t
 	tcf_tree_lock(tp);
 	list_splice_init(&dst->actions, &tmp);
 	list_splice(&src->actions, &dst->actions);
+	dst->type = src->type;
 	tcf_tree_unlock(tp);
 	tcf_action_destroy(&tmp, TCA_ACT_UNBIND);
 #endif


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