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Miller" , Jakub Kicinski , Andrew Lunn , Vivien Didelot , Florian Fainelli , Ansuel Smith Subject: [RFC PATCH net-next 1/7] net: dsa: only bring down user ports assigned to a given DSA master Date: Thu, 9 Dec 2021 00:32:24 +0200 Message-Id: <20211208223230.3324822-2-vladimir.oltean@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211208223230.3324822-1-vladimir.oltean@nxp.com> References: <20211208223230.3324822-1-vladimir.oltean@nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: AM3PR05CA0129.eurprd05.prod.outlook.com (2603:10a6:207:2::31) To VI1PR04MB5136.eurprd04.prod.outlook.com (2603:10a6:803:55::19) MIME-Version: 1.0 Received: from localhost.localdomain (188.25.173.50) by AM3PR05CA0129.eurprd05.prod.outlook.com (2603:10a6:207:2::31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4755.17 via Frontend Transport; Wed, 8 Dec 2021 22:32:44 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 270042ab-3df9-41bb-f334-08d9ba9aa7a8 X-MS-TrafficTypeDiagnostic: VI1PR0402MB3408:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:296; 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When a DSA master goes down, only the user ports under its control should go down too, the others can still send/receive traffic. Signed-off-by: Vladimir Oltean --- net/dsa/slave.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/dsa/slave.c b/net/dsa/slave.c index 2b153b366118..f76c96e27868 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -2364,6 +2364,9 @@ static int dsa_slave_netdevice_event(struct notifier_block *nb, if (!dsa_port_is_user(dp)) continue; + if (dp->cpu_dp != cpu_dp) + continue; + list_add(&dp->slave->close_list, &close_list); } -- 2.25.1