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Date: Fri, 2 Mar 2018 09:37:56 +0100
From: Jiri Pirko <jiri@resnulli.us>
To: Jakub Kicinski <kubakici@wp.pl>
Cc: Alexander Aring <aring@mojatatu.com>, netdev@vger.kernel.org,
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        mlxsw@mellanox.com, Jamal Hadi Salim <jhs@mojatatu.com>,
        Cong Wang <xiyou.wangcong@gmail.com>, kernel@mojatatu.com
Subject: Re: [patch net-next 09/10] net: sch: prio: Add offload ability for
 grafting a child
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Fri, Mar 02, 2018 at 04:48:40AM CET, kubakici@wp.pl wrote:
>On Thu, 1 Mar 2018 22:38:50 -0500, Alexander Aring wrote:
>> I guess to make extack working, you need to return an errno if failed.
>
>AFAIK extack is printed as a warning if operation did not fail.

Yes, I checked this and it is printed as warning.