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>
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David S. Miller

parent
d0bd684ddd
commit
a38a98821c
@@ -225,7 +225,8 @@ static int red_change(struct Qdisc *sch, struct nlattr *opt,
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return -EINVAL;
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if (ctl->limit > 0) {
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child = fifo_create_dflt(sch, &bfifo_qdisc_ops, ctl->limit);
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child = fifo_create_dflt(sch, &bfifo_qdisc_ops, ctl->limit,
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extack);
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if (IS_ERR(child))
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return PTR_ERR(child);
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}
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