netdev - Re: [PATCH v5 net-next 09/15] net: bridge: mst: Add helper to query a port's MST state

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Date:   Thu, 17 Mar 2022 11:01:43 +0200
From:   Nikolay Aleksandrov <razor@...ckwall.org>
To:     Tobias Waldekranz <tobias@...dekranz.com>, davem@...emloft.net,
        kuba@...nel.org
Cc:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Jiri Pirko <jiri@...nulli.us>,
        Ivan Vecera <ivecera@...hat.com>,
        Roopa Prabhu <roopa@...dia.com>,
        Russell King <linux@...linux.org.uk>,
        Petr Machata <petrm@...dia.com>,
        Ido Schimmel <idosch@...dia.com>,
        Matt Johnston <matt@...econstruct.com.au>,
        Cooper Lees <me@...perlees.com>, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, bridge@...ts.linux-foundation.org
Subject: Re: [PATCH v5 net-next 09/15] net: bridge: mst: Add helper to query a
 port's MST state

On 16/03/2022 17:08, Tobias Waldekranz wrote:
> This is useful for switchdev drivers who are offloading MST states
> into hardware. As an example, a driver may wish to flush the FDB for a
> port when it transitions from forwarding to blocking - which means
> that the previous state must be discoverable.
> 
> Signed-off-by: Tobias Waldekranz <tobias@...dekranz.com>
> ---
>  include/linux/if_bridge.h |  6 ++++++
>  net/bridge/br_mst.c       | 25 +++++++++++++++++++++++++
>  2 files changed, 31 insertions(+)
> 

Acked-by: Nikolay Aleksandrov <razor@...ckwall.org>