diff options
| author | Alexander Aring <aring@mojatatu.com> | 2017-12-20 12:35:20 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-21 12:32:51 -0500 |
| commit | d0bd684dddab51ed017ece0359f26b038ec31940 (patch) | |
| tree | d291b35a0e232ba4314116d8d2333b703a49af3b /net/sched/sch_generic.c | |
| parent | 8d1a77f974ca61d39afa5bf0aeab210525d31475 (diff) | |
| download | lwn-d0bd684dddab51ed017ece0359f26b038ec31940.tar.gz lwn-d0bd684dddab51ed017ece0359f26b038ec31940.zip | |
net: sch: api: add extack support in qdisc_alloc
This patch adds extack support for the function qdisc_alloc 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_alloc 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>
Diffstat (limited to 'net/sched/sch_generic.c')
| -rw-r--r-- | net/sched/sch_generic.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 30bc38c5d7ae..34ef4366f8e0 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -755,7 +755,8 @@ static struct lock_class_key qdisc_tx_busylock; static struct lock_class_key qdisc_running_key; struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue, - const struct Qdisc_ops *ops) + const struct Qdisc_ops *ops, + struct netlink_ext_ack *extack) { void *p; struct Qdisc *sch; @@ -764,6 +765,7 @@ struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue, struct net_device *dev; if (!dev_queue) { + NL_SET_ERR_MSG(extack, "No device queue given"); err = -EINVAL; goto errout; } @@ -835,7 +837,7 @@ struct Qdisc *qdisc_create_dflt(struct netdev_queue *dev_queue, if (!try_module_get(ops->owner)) return NULL; - sch = qdisc_alloc(dev_queue, ops); + sch = qdisc_alloc(dev_queue, ops, NULL); if (IS_ERR(sch)) { module_put(ops->owner); return NULL; |