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net/sched: Remove unnecessary WARNING condition for empty child qdisc in htb_activate

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[ Upstream commit 2c2192e5f9c7c2892fe2363244d1387f62710d83 ]

The WARN_ON trigger based on !cl->leaf.q->q.qlen is unnecessary in
htb_activate. htb_dequeue_tree already accounts for that scenario.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: William Liu <will@willsroot.io>
Reviewed-by: Savino Dicanosa <savy@syst3mfailure.io>
Link: https://patch.msgid.link/20250819033632.579854-1-will@willsroot.io
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
William Liu 2025-08-19 03:36:59 +00:00 committed by Greg Kroah-Hartman
parent ff57186b2c
commit 23ff73c949
1 changed files with 1 additions and 1 deletions
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2
net/sched/sch_htb.c
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@ -592,7 +592,7 @@ htb_change_class_mode(struct htb_sched *q, struct htb_class *cl, s64 *diff)
*/
static inline void htb_activate(struct htb_sched *q, struct htb_class *cl)
{
WARN_ON(cl->level || !cl->leaf.q || !cl->leaf.q->q.qlen);
WARN_ON(cl->level || !cl->leaf.q);
if (!cl->prio_activity) {
cl->prio_activity = 1 << cl->prio;