From: Konstantin Khlebnikov <khlebni...@yandex-team.ru>
Date: Tue, 15 Aug 2017 16:39:05 +0300
> It was added in commit e57a784d8cae ("pkt_sched: set root qdisc
> before change() in attach_default_qdiscs()") to hide duplicates
> from "tc qdisc show" for incative deivices.
>
> After 59cc1f61f ("net: sched: convert qdisc linked list to hashtable")
> it triggered when classful qdisc is added to inactive device because
> default qdiscs are added before switching root qdisc.
>
> Anyway after commit ea3274695353 ("net: sched: avoid duplicates in
> qdisc dump") duplicates are filtered right in dumper.
>
> Signed-off-by: Konstantin Khlebnikov <khlebni...@yandex-team.ru>
Applied.
