linux-kernel - Re: [PATCH net] net: bridge: switchdev: don't notify FDB entries with "master dynamic"

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Message-ID: <20230412142733.6jhxt7kjf3nwqzsy@skbuf>
Date:   Wed, 12 Apr 2023 17:27:33 +0300
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     Ido Schimmel <idosch@...dia.com>
Cc:     netdev@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        "Hans J. Schultz" <netdev@...io-technology.com>,
        Roopa Prabhu <roopa@...dia.com>,
        Nikolay Aleksandrov <razor@...ckwall.org>,
        Ivan Vecera <ivecera@...hat.com>,
        Jiri Pirko <jiri@...nulli.us>,
        Arkadi Sharshevsky <arkadis@...lanox.com>,
        Ido Schimmel <idosch@...lanox.com>,
        bridge@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net: bridge: switchdev: don't notify FDB entries
 with "master dynamic"

On Wed, Apr 12, 2023 at 05:15:03PM +0300, Ido Schimmel wrote:
> > Looking at tools/testing/selftests/net/forwarding/, there is no valid
> > use of the "bridge fdb add ... master dynamic" command there, so I am
> > fairly confident that no one used to rely on this behavior.
> 
> Yes, but there are tests that use "extern_learn". If you post a v2 that
> takes "BR_FDB_ADDED_BY_EXT_LEARN" into account, then I can ask Petr to
> run it through our regression and report back (not sure we will make it
> to this week's PR though).
> 
> Thanks

How are extern_learn FDB entries processed by spectrum's
SWITCHDEV_FDB_ADD_TO_DEVICE handler?