net: sch: api: add extack support in tcf_block_get
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>
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 51be1b7..54e1f86 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -1032,7 +1032,7 @@ static int htb_init(struct Qdisc *sch, struct nlattr *opt,
if (!opt)
return -EINVAL;
- 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;
@@ -1397,7 +1397,7 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
if (!cl)
goto failure;
- err = tcf_block_get(&cl->block, &cl->filter_list, sch);
+ err = tcf_block_get(&cl->block, &cl->filter_list, sch, extack);
if (err) {
kfree(cl);
goto failure;