netdev - Re: [PATCH v4 net-next 09/15] net/sched: mqprio: add extack messages for queue count validation

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Date:   Wed, 1 Feb 2023 15:12:20 +0100
From:   Simon Horman <simon.horman@...igine.com>
To:     Vladimir Oltean <vladimir.oltean@....com>
Cc:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Jacob Keller <jacob.e.keller@...el.com>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Jiri Pirko <jiri@...nulli.us>
Subject: Re: [PATCH v4 net-next 09/15] net/sched: mqprio: add extack messages
 for queue count validation

On Mon, Jan 30, 2023 at 07:31:39PM +0200, Vladimir Oltean wrote:
> To make mqprio more user-friendly, create netlink extended ack messages
> which say exactly what is wrong about the queue counts. This uses the
> new support for printf-formatted extack messages.
> 
> Example:
> 
> $ tc qdisc add dev eno0 root handle 1: mqprio num_tc 8 \
> 	map 0 1 2 3 4 5 6 7 queues 3@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 hw 1
> Error: sch_mqprio: Queues 1:1 for TC 1 overlap with last TX queue 3 for TC 0.
> 
> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
> Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>

Reviewed-by: Simon Horman <simon.horman@...igine.com>