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Diffstat (limited to 'net/sched/sch_api.c')
-rw-r--r--net/sched/sch_api.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 74afc210527d..a1d27bc039a3 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -593,7 +593,6 @@ out:
pkt_len = 1;
qdisc_skb_cb(skb)->pkt_len = pkt_len;
}
-EXPORT_SYMBOL(__qdisc_calculate_pkt_len);
void qdisc_warn_nonwc(const char *txt, struct Qdisc *qdisc)
{
@@ -792,7 +791,7 @@ void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
drops = max_t(int, n, 0);
rcu_read_lock();
while ((parentid = sch->parent)) {
- if (TC_H_MAJ(parentid) == TC_H_MAJ(TC_H_INGRESS))
+ if (parentid == TC_H_ROOT)
break;
if (sch->flags & TCQ_F_NOPARENT)
@@ -1201,6 +1200,12 @@ skip:
return -EINVAL;
}
+ if (new &&
+ !(parent->flags & TCQ_F_MQROOT) &&
+ rcu_access_pointer(new->stab)) {
+ NL_SET_ERR_MSG(extack, "STAB not supported on a non root");
+ return -EINVAL;
+ }
err = cops->graft(parent, cl, new, &old, extack);
if (err)
return err;