netdev - Re: [RFC PATCH net-next 01/12] net: introduce iterators over synced hw addresses

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Date:   Mon, 23 May 2022 10:54:03 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Vladimir Oltean <olteanv@...il.com>, netdev@...r.kernel.org
Cc:     Jakub Kicinski <kuba@...nel.org>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Tobias Waldekranz <tobias@...dekranz.com>,
        Marek Behún <kabel@...nel.org>,
        Ansuel Smith <ansuelsmth@...il.com>,
        DENG Qingfang <dqfext@...il.com>,
        Alvin Šipraga <alsi@...g-olufsen.dk>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        UNGLinuxDriver@...rochip.com,
        Colin Foster <colin.foster@...advantage.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Luiz Angelo Daros de Luca <luizluca@...il.com>,
        Roopa Prabhu <roopa@...dia.com>,
        Nikolay Aleksandrov <razor@...ckwall.org>,
        Frank Wunderlich <frank-w@...lic-files.de>,
        Vladimir Oltean <vladimir.oltean@....com>
Subject: Re: [RFC PATCH net-next 01/12] net: introduce iterators over synced
 hw addresses

On 5/23/22 03:42, Vladimir Oltean wrote:
> From: Vladimir Oltean <vladimir.oltean@....com>
> 
> Some network drivers use __dev_mc_sync()/__dev_uc_sync() and therefore
> program the hardware only with addresses with a non-zero sync_cnt.
> 
> Some of the above drivers also need to save/restore the address
> filtering lists when certain events happen, and they need to walk
> through the struct net_device :: uc and struct net_device :: mc lists.
> But these lists contain unsynced addresses too.
> 
> To keep the appearance of an elementary form of data encapsulation,
> provide iterators through these lists that only look at entries with a
> non-zero sync_cnt, instead of filtering entries out from device drivers.
> 
> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian