linux-kernel - Re: [PATCH v5 net-next 1/6] net: bridge: add locked entry fdb flag to extend locked port feature

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Message-ID: <972663825881d135d19f9e391b2b7587@kapio-technology.com>
Date:   Mon, 29 Aug 2022 16:02:46 +0200
From:   netdev@...io-technology.com
To:     Nikolay Aleksandrov <razor@...ckwall.org>
Cc:     davem@...emloft.net, kuba@...nel.org, netdev@...r.kernel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Hauke Mehrtens <hauke@...ke-m.de>,
        Woojung Huh <woojung.huh@...rochip.com>,
        UNGLinuxDriver@...rochip.com, Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Jiri Pirko <jiri@...nulli.us>,
        Ivan Vecera <ivecera@...hat.com>,
        Roopa Prabhu <roopa@...dia.com>, Shuah Khan <shuah@...nel.org>,
        Christian Marangi <ansuelsmth@...il.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Yuwei Wang <wangyuweihx@...il.com>,
        Ido Schimmel <idosch@...dia.com>, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        bridge@...ts.linux-foundation.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v5 net-next 1/6] net: bridge: add locked entry fdb flag to
 extend locked port feature

On 2022-08-27 13:30, Nikolay Aleksandrov wrote:
> On 26/08/2022 14:45, Hans Schultz wrote:
> 
> Hi,
> Please add the blackhole flag in a separate patch.
> A few more comments and questions below..
> 

Hi,
if userspace is to set this flag I think I need to change stuff in 
rtnetlink.c, as I will need to extent struct ndmsg with a new u32 entry 
as the old u8 flags is full.
Maybe this is straight forward, but I am not so sure as I don't know 
that code too well. Maybe someone can give me a hint...?