Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18;
Date:   Tue, 15 Mar 2022 18:44:41 +0200
From:   Vladimir Oltean <olteanv@gmail.com>
To:     Tobias Waldekranz <tobias@waldekranz.com>
Cc:     davem@davemloft.net, kuba@kernel.org, Andrew Lunn <andrew@lunn.ch>,
        Vivien Didelot <vivien.didelot@gmail.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Jiri Pirko <jiri@resnulli.us>,
        Ivan Vecera <ivecera@redhat.com>,
        Roopa Prabhu <roopa@nvidia.com>,
        Nikolay Aleksandrov <razor@blackwall.org>,
        Russell King <linux@armlinux.org.uk>,
        Petr Machata <petrm@nvidia.com>,
        Ido Schimmel <idosch@nvidia.com>,
        Matt Johnston <matt@codeconstruct.com.au>,
        Cooper Lees <me@cooperlees.com>, linux-kernel@vger.kernel.org,
        netdev@vger.kernel.org, bridge@lists.linux-foundation.org
Subject: Re: [PATCH v4 net-next 12/15] net: dsa: Handle MST state changes
Message-ID: <20220315164441.sz5jyooa3glnym5p@skbuf>
References: <20220315002543.190587-1-tobias@waldekranz.com>
 <20220315002543.190587-13-tobias@waldekranz.com>
 <20220315164249.sjgi6wbdpgehc6m6@skbuf>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20220315164249.sjgi6wbdpgehc6m6@skbuf>
Precedence: bulk

On Tue, Mar 15, 2022 at 06:42:49PM +0200, Vladimir Oltean wrote:
> Is there a requirement in br_mst_set_state() to put the switchdev
> notifier at the end instead of at the beginning?
> 
> I'm tempted to ask you to introduce br_mst_get_state(), then assign
> old_state = br_mst_get_state(dsa_port_bridge_dev_get(dp), state->msti),

dsa_port_to_bridge_port(dp), excuse me.

> then perform the VLAN fast age only on the appropriate state transitions,
> just like the regular fast age.