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net: sch: api: add extack support in tcf_block_get

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This patch adds extack support for the function tcf_block_get 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 tcf_block_get failed.

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>
This commit is contained in:
Alexander Aring
2017-12-20 12:35:19 -05:00
committed by David S. Miller
parent e9bc3fa28b
commit 8d1a77f974
15 changed files with 36 additions and 25 deletions
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2
net/sched/sch_sfq.c
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@@ -731,7 +731,7 @@ static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
q->sch = sch;
timer_setup(&q->perturb_timer, sfq_perturbation, TIMER_DEFERRABLE);
err = tcf_block_get(&q->block, &q->filter_list, sch);
err = tcf_block_get(&q->block, &q->filter_list, sch, extack);
if (err)
return err;