diff options
Diffstat (limited to 'net/sched/sch_api.c')
| -rw-r--r-- | net/sched/sch_api.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index d512f49ee83c..106dae7e4818 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -739,6 +739,7 @@ static u32 qdisc_alloc_handle(struct net_device *dev) void qdisc_tree_reduce_backlog(struct Qdisc *sch, unsigned int n, unsigned int len) { + bool qdisc_is_offloaded = sch->flags & TCQ_F_OFFLOADED; const struct Qdisc_class_ops *cops; unsigned long cl; u32 parentid; @@ -760,8 +761,12 @@ void qdisc_tree_reduce_backlog(struct Qdisc *sch, unsigned int n, * If child was empty even before update then backlog * counter is screwed and we skip notification because * parent class is already passive. + * + * If the original child was offloaded then it is allowed + * to be seem as empty, so the parent is notified anyway. */ - notify = !sch->q.qlen && !WARN_ON_ONCE(!n); + notify = !sch->q.qlen && !WARN_ON_ONCE(!n && + !qdisc_is_offloaded); /* TODO: perform the search on a per txq basis */ sch = qdisc_lookup(qdisc_dev(sch), TC_H_MAJ(parentid)); if (sch == NULL) { |