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net: sch: api: add extack support in qdisc_get_rtab

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This patch adds extack support for the function qdisc_get_rtab 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_get_rtab 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 12:35:18 -05:00
committed by David S. Miller
parent 653d6fd68d
commit e9bc3fa28b
6 changed files with 23 additions and 12 deletions
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4
net/sched/act_police.c
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@@ -118,13 +118,13 @@ static int tcf_act_police_init(struct net *net, struct nlattr *nla,
police = to_police(*a);
if (parm->rate.rate) {
err = -ENOMEM;
R_tab = qdisc_get_rtab(&parm->rate, tb[TCA_POLICE_RATE]);
R_tab = qdisc_get_rtab(&parm->rate, tb[TCA_POLICE_RATE], NULL);
if (R_tab == NULL)
goto failure;
if (parm->peakrate.rate) {
P_tab = qdisc_get_rtab(&parm->peakrate,
tb[TCA_POLICE_PEAKRATE]);
tb[TCA_POLICE_PEAKRATE], NULL);
if (P_tab == NULL)
goto failure;
}