net/sched: Change behavior of mq select_queue()

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Currently, the class_ops select_queue() implementation on sch_mq
returns a pointer to netdev_queue #0 when it receives and invalid
qdisc id. That can be misleading since all of mq's inner qdiscs are
attached to a valid netdev_queue.

Here we fix that by returning NULL when a qdisc id is invalid. This is
aligned with how select_queue() is implemented for sch_mqprio in the
next patch on this series, keeping a consistent behavior between these
two qdiscs.

Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com>
Tested-by: Henrik Austad <henrik@austad.us>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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Jesus Sanchez-Palencia 2017-10-16 18:01:24 -07:00 • committed by Jeff Kirsher

parent 26aa0459fa

commit ce8a75f60b

1 changed files with 1 additions and 9 deletions

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net/sched/sch_mq.c

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