From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755050AbcAHNty (ORCPT ); Fri, 8 Jan 2016 08:49:54 -0500 Received: from out4-smtp.messagingengine.com ([66.111.4.28]:56808 "EHLO out4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754254AbcAHNtx (ORCPT ); Fri, 8 Jan 2016 08:49:53 -0500 X-Sasl-enc: iWcH6XGn6+U2rtjcB6bMM0YGYgW7xbtPTQ5SrkQIc+Oc 1452260992 Subject: Re: [PATCH] ipv6: always add flag an address that failed DAD with DADFAILED To: Lubomir Rintel , netdev@vger.kernel.org References: <1452257243-19389-1-git-send-email-lkundrak@v3.sk> Cc: linux-kernel@vger.kernel.org, "David S. Miller" , Alexey Kuznetsov , James Morris , Hideaki YOSHIFUJI , Patrick McHardy From: Hannes Frederic Sowa Message-ID: <568FBE7E.3060105@stressinduktion.org> Date: Fri, 8 Jan 2016 14:49:50 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.0 MIME-Version: 1.0 In-Reply-To: <1452257243-19389-1-git-send-email-lkundrak@v3.sk> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08.01.2016 13:47, Lubomir Rintel wrote: > The userspace needs to know why is the address being removed so that it can > perhaps obtain a new address. > > Without the DADFAILED flag it's impossible to distinguish removal of a > temporary and tentative address due to DAD failure from other reasons (device > removed, manual address removal). > > Signed-off-by: Lubomir Rintel Makes sense. Acked-by: Hannes Frederic Sowa