[PATCH net 1/1] net sched actions: bug fix dumping actions directly didnt produce NLMSG_DONE

[Jamal Hadi Salim]

From: Jamal Hadi Salim <j...@mojatatu.com>

This refers to commands to direct action access as follows:

sudo tc actions add action drop index 12
sudo tc actions add action pipe index 10

And then dumping them like so:
sudo tc actions ls action gact

iproute2 worked because it depended on absence of TCA_ACT_TAB TLV
as end of message.
This fix has been tested with iproute2 and is backward compatible.

Signed-off-by: Jamal Hadi Salim <j...@mojatatu.com>
---
 net/sched/act_api.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 336774a..c7a0b0d 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -1118,7 +1118,7 @@ tc_dump_action(struct sk_buff *skb, struct 
netlink_callback *cb)
                nla_nest_end(skb, nest);
                ret = skb->len;
        } else
-               nla_nest_cancel(skb, nest);
+               nlmsg_trim(skb, b);
 
        nlh->nlmsg_len = skb_tail_pointer(skb) - b;
        if (NETLINK_CB(cb->skb).portid && ret)
-- 
1.9.1