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[5.12.227.87]) by smtp.gmail.com with ESMTPSA id k3sm5666655eds.87.2021.01.15.17.00.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Jan 2021 17:00:34 -0800 (PST) From: Vladimir Oltean To: "David S . Miller" , Jakub Kicinski Cc: netdev , Microchip Linux Driver Support , Alexandre Belloni , Andrew Lunn , Florian Fainelli , Vivien Didelot , Claudiu Manoil , Tobias Waldekranz , Maxim Kochetkov Subject: [PATCH v2 net-next 01/14] net: mscc: ocelot: allow offloading of bridge on top of LAG Date: Sat, 16 Jan 2021 02:59:30 +0200 Message-Id: <20210116005943.219479-2-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210116005943.219479-1-olteanv@gmail.com> References: <20210116005943.219479-1-olteanv@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Vladimir Oltean Commit 7afb3e575e5a ("net: mscc: ocelot: don't handle netdev events for other netdevs") was too aggressive, and it made ocelot_netdevice_event react only to network interface events emitted for the ocelot switch ports. In fact, only the PRECHANGEUPPER should have had that check. When we ignore all events that are not for us, we miss the fact that the upper of the LAG changes, and the bonding interface gets enslaved to a bridge. This is an operation we could offload under certain conditions. Signed-off-by: Vladimir Oltean Reviewed-by: Alexandre Belloni --- Changes in v2: None. drivers/net/ethernet/mscc/ocelot_net.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mscc/ocelot_net.c b/drivers/net/ethernet/mscc/ocelot_net.c index a520fd485912..467170363ab2 100644 --- a/drivers/net/ethernet/mscc/ocelot_net.c +++ b/drivers/net/ethernet/mscc/ocelot_net.c @@ -1153,10 +1153,8 @@ static int ocelot_netdevice_event(struct notifier_block *unused, struct net_device *dev = netdev_notifier_info_to_dev(ptr); int ret = 0; - if (!ocelot_netdevice_dev_check(dev)) - return 0; - if (event == NETDEV_PRECHANGEUPPER && + ocelot_netdevice_dev_check(dev) && netif_is_lag_master(info->upper_dev)) { struct netdev_lag_upper_info *lag_upper_info = info->upper_info; struct netlink_ext_ack *extack;