[PATCH net-next 03/13] net/sched: taprio: add extack messages in taprio_init
flat view
STALE1485d
SUPERSEDED
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: 2022-09-14 15:34:34
Also in:
lkml
Subsystem:
cbs/etf/taprio qdiscs, networking [general], tc subsystem, the rest · Maintainers:
Vinicius Costa Gomes, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Jamal Hadi Salim, Jiri Pirko, Linus Torvalds
Revision v1 of 4 in this series.
Revisions (4)
- v1 current
- v2 [diff vs current]
- v3 [diff vs current]
- v4 [diff vs current]
Stop contributing to the proverbial user unfriendliness of tc, and tell the user what is wrong wherever possible. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> --- net/sched/sch_taprio.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c
index 226aa6efb365..2a4b8f59f444 100644
--- a/net/sched/sch_taprio.c
+++ b/net/sched/sch_taprio.c@@ -1675,11 +1675,15 @@ static int taprio_init(struct Qdisc *sch, struct nlattr *opt, list_add(&q->taprio_list, &taprio_list); spin_unlock(&taprio_list_lock); - if (sch->parent != TC_H_ROOT) + if (sch->parent != TC_H_ROOT) { + NL_SET_ERR_MSG_MOD(extack, "Can only be attached as root qdisc"); return -EOPNOTSUPP; + } - if (!netif_is_multiqueue(dev)) + if (!netif_is_multiqueue(dev)) { + NL_SET_ERR_MSG_MOD(extack, "Multi-queue device is required"); return -EOPNOTSUPP; + } /* pre-allocate qdisc, attachment can't fail */ q->qdiscs = kcalloc(dev->num_tx_queues,
--
2.34.1