net: sch: api: add extack support in qdisc_create_dflt
This patch adds extack support for the function qdisc_create_dflt which is
a common used function in the tc subsystem. Callers which are interested
in the receiving error can assign extack to get a more detailed
information why qdisc_create_dflt failed. The function qdisc_create_dflt
will also call an init callback which can fail by any per-qdisc specific
handling.
Cc: David Ahern <dsahern@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Alexander Aring <aring@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c
index 1ab53ff..83e76d0 100644
--- a/net/sched/sch_tbf.c
+++ b/net/sched/sch_tbf.c
@@ -386,7 +386,8 @@
if (err)
goto done;
} else if (qopt->limit > 0) {
- child = fifo_create_dflt(sch, &bfifo_qdisc_ops, qopt->limit);
+ child = fifo_create_dflt(sch, &bfifo_qdisc_ops, qopt->limit,
+ extack);
if (IS_ERR(child)) {
err = PTR_ERR(child);
goto done;