5.4-stable review patch. If anyone has any objections, please let me know.
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From: William Liu will@willsroot.io
[ 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: 1da177e4c3f4 ("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 --- net/sched/sch_htb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 2562219ccca4..dd5088f7bffb 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -558,7 +558,7 @@ 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;