From: Jarek Poplawski <jarkao2@gmail.com>
Date: Tue, 10 Feb 2009 08:11:21 +0000 (-0800)
Subject: pkt_sched: sch_multiq: Change errno on non-multiqueue devices use.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=149490f131ab532a3b9e8806249a0e730994cdf6;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

pkt_sched: sch_multiq: Change errno on non-multiqueue devices use.

Current "RTNETLINK answers: Invalid argument" warning, while trying to
add multiq qdisc to non-multiqueue device, isn't very helpful and some
of these devs can be changed btw., so let's use a better errno.

With feedback from Stephen Hemminger <shemminger@vyatta.com>

Reported-by: Badalian Vyacheslav <slavon@bigtelecom.ru>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/sched/sch_multiq.c b/net/sched/sch_multiq.c
index 7e151861794b..912731203047 100644
--- a/net/sched/sch_multiq.c
+++ b/net/sched/sch_multiq.c
@@ -202,7 +202,7 @@ static int multiq_tune(struct Qdisc *sch, struct nlattr *opt)
 	int i;
 
 	if (!netif_is_multiqueue(qdisc_dev(sch)))
-		return -EINVAL;
+		return -EOPNOTSUPP;
 	if (nla_len(opt) < sizeof(*qopt))
 		return -EINVAL;