From: Pedro Tammela <pctammela@mojatatu.com>
Date: Fri, 28 Jul 2023 15:35:35 +0000 (-0300)
Subject: net/sched: sch_hfsc: warn about class in use while deleting
X-Git-Tag: v6.6.17~4098^2~276^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8e4553ef3ed5ea6d58e7ab89955e2a56be4aa4f4;p=platform%2Fkernel%2Flinux-rpi.git

net/sched: sch_hfsc: warn about class in use while deleting

Add extack to warn that delete was rejected because
the class is still in use

Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---

diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 896cb40..9880530 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -1094,8 +1094,10 @@ hfsc_delete_class(struct Qdisc *sch, unsigned long arg,
 	struct hfsc_class *cl = (struct hfsc_class *)arg;
 
 	if (cl->level > 0 || qdisc_class_in_use(&cl->cl_common) ||
-	    cl == &q->root)
+	    cl == &q->root) {
+		NL_SET_ERR_MSG(extack, "HFSC class in use");
 		return -EBUSY;
+	}
 
 	sch_tree_lock(sch);