netdev - Re: [PATCH 3/3] NET: [SCHED] Qdisc changes and sch

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Date:	Mon, 25 Jun 2007 00:22:10 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	PJ Waskiewicz <peter.p.waskiewicz.jr@...el.com>
CC:	davem@...emloft.net, netdev@...r.kernel.org, jeff@...zik.org,
	auke-jan.h.kok@...el.com, hadi@...erus.ca
Subject: Re: [PATCH 3/3] NET: [SCHED] Qdisc changes and sch_rr added for multiqueue

PJ Waskiewicz wrote:
> +	/* If we're multiqueue, make sure the number of incoming bands
> +	 * matches the number of queues on the device we're associating with.
> +	 */
> +	if (tb[TCA_PRIO_MQ - 1])
> +		q->mq = *(unsigned char *)RTA_DATA(tb[TCA_PRIO_MQ - 1]);
> +
> +	if (q->mq && (qopt->bands != sch->dev->egress_subqueue_count))
> +		return -EINVAL;

A nice thing you could do for the user here is use
egress_subqueue_count as default when qopt->bands == 0
(and change tc prio to accept 0 in case it doesn't).
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