From: Greg Kroah-Hartman gregkh@linuxfoundation.org
From: Maximilian Heyne mheyne@amazon.de
commit bfc2560563586372212b0a8aeca7428975fa91fe upstream.
This is a follow up of commit ea3274695353 ("net: sched: avoid duplicates in qdisc dump") which has fixed the issue only for the qdisc dump.
The duplicate printing also occurs when dumping the classes via tc class show dev eth0
Fixes: 59cc1f61f09c ("net: sched: convert qdisc linked list to hashtable") Signed-off-by: Maximilian Heyne mheyne@amazon.de Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/sched/sch_api.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
--- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -1789,7 +1789,7 @@ static int tc_dump_tclass_qdisc(struct Q
static int tc_dump_tclass_root(struct Qdisc *root, struct sk_buff *skb, struct tcmsg *tcm, struct netlink_callback *cb, - int *t_p, int s_t) + int *t_p, int s_t, bool recur) { struct Qdisc *q; int b; @@ -1800,7 +1800,7 @@ static int tc_dump_tclass_root(struct Qd if (tc_dump_tclass_qdisc(root, skb, tcm, cb, t_p, s_t) < 0) return -1;
- if (!qdisc_dev(root)) + if (!qdisc_dev(root) || !recur) return 0;
hash_for_each(qdisc_dev(root)->qdisc_hash, b, q, hash) { @@ -1828,13 +1828,13 @@ static int tc_dump_tclass(struct sk_buff s_t = cb->args[0]; t = 0;
- if (tc_dump_tclass_root(dev->qdisc, skb, tcm, cb, &t, s_t) < 0) + if (tc_dump_tclass_root(dev->qdisc, skb, tcm, cb, &t, s_t, true) < 0) goto done;
dev_queue = dev_ingress_queue(dev); if (dev_queue && tc_dump_tclass_root(dev_queue->qdisc_sleeping, skb, tcm, cb, - &t, s_t) < 0) + &t, s_t, false) < 0) goto done;
done: