netdev - Re: [PATCH v3 net-next 3/7] net: switchdev: move SWITCHDEV_FDB_{ADD,DEL}_TO

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Message-ID: <20210820085402.3dfbd2a9@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Fri, 20 Aug 2021 08:54:02 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Vladimir Oltean <vladimir.oltean@....com>
Cc:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Roopa Prabhu <roopa@...dia.com>,
        Nikolay Aleksandrov <nikolay@...dia.com>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Vadym Kochan <vkochan@...vell.com>,
        Taras Chornyi <tchornyi@...vell.com>,
        Jiri Pirko <jiri@...dia.com>, Ido Schimmel <idosch@...dia.com>,
        UNGLinuxDriver@...rochip.com,
        Grygorii Strashko <grygorii.strashko@...com>,
        Marek Behun <kabel@...ckhole.sk>,
        DENG Qingfang <dqfext@...il.com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Hauke Mehrtens <hauke@...ke-m.de>,
        Woojung Huh <woojung.huh@...rochip.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        George McCollister <george.mccollister@...il.com>,
        Ioana Ciornei <ioana.ciornei@....com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leon@...nel.org>,
        Lars Povlsen <lars.povlsen@...rochip.com>,
        Steen Hegelund <Steen.Hegelund@...rochip.com>,
        Julian Wiedmann <jwi@...ux.ibm.com>,
        Alexandra Winter <wintera@...ux.ibm.com>,
        Karsten Graul <kgraul@...ux.ibm.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Ivan Vecera <ivecera@...hat.com>,
        Vlad Buslov <vladbu@...dia.com>,
        Jianbo Liu <jianbol@...dia.com>,
        Mark Bloch <mbloch@...dia.com>, Roi Dayan <roid@...dia.com>,
        Tobias Waldekranz <tobias@...dekranz.com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        linux-s390@...r.kernel.org
Subject: Re: [PATCH v3 net-next 3/7] net: switchdev: move
 SWITCHDEV_FDB_{ADD,DEL}_TO_DEVICE to the blocking notifier chain

On Fri, 20 Aug 2021 14:57:42 +0300 Vladimir Oltean wrote:
> Currently, br_switchdev_fdb_notify() uses call_switchdev_notifiers (and
> br_fdb_replay() open-codes the same thing). This means that drivers
> handle the SWITCHDEV_FDB_{ADD,DEL}_TO_DEVICE events on the atomic
> switchdev notifier block.

drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c: In function ‘sparx5_switchdev_fdb_event’:
drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c:453:1: warning: label ‘err_addr_alloc’ defined but not used [-Wunused-label]
  453 | err_addr_alloc:
      | ^~~~~~~~~~~~~~