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dkim=none (message not signed) header.d=none; redhat.com; dmarc=none action=none header.from=dektech.com.au; Received: from VI1PR05MB4605.eurprd05.prod.outlook.com (2603:10a6:802:61::21) by VI1PR0502MB3694.eurprd05.prod.outlook.com (2603:10a6:803:5::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3611.25; Mon, 30 Nov 2020 02:55:58 +0000 Received: from VI1PR05MB4605.eurprd05.prod.outlook.com ([fe80::9854:ed43:372d:2883]) by VI1PR05MB4605.eurprd05.prod.outlook.com ([fe80::9854:ed43:372d:2883%6]) with mapi id 15.20.3611.024; Mon, 30 Nov 2020 02:55:58 +0000 From: Hoang Huu Le To: jmaloy@redhat.com, maloy@donjonn.com, ying.xue@windriver.com, netdev@vger.kernel.org Cc: Hoang Le Subject: [net] tipc: fix incompatible mtu of transmission Date: Mon, 30 Nov 2020 09:55:44 +0700 Message-Id: <20201130025544.3602-1-hoang.h.le@dektech.com.au> X-Mailer: git-send-email 2.25.1 X-Originating-IP: [14.161.14.188] X-ClientProxiedBy: SG2PR01CA0157.apcprd01.prod.exchangelabs.com (2603:1096:4:28::13) To VI1PR05MB4605.eurprd05.prod.outlook.com (2603:10a6:802:61::21) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from dektech.com.au (14.161.14.188) by SG2PR01CA0157.apcprd01.prod.exchangelabs.com (2603:1096:4:28::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3611.20 via Frontend Transport; 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DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: dektech.com.au X-MS-Exchange-CrossTenant-Network-Message-Id: 10cc3e6f-c5ef-4a3d-2d68-08d894db7680 X-MS-Exchange-CrossTenant-AuthSource: VI1PR05MB4605.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Nov 2020 02:55:58.4912 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 1957ea50-0dd8-4360-8db0-c9530df996b2 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: RXOY9o+Gp0V51+Tugf1xZRMuEtamtb0UsohIMtRtYJ45J/VMU9QJLbGhRDpd2iNnHPCS8Xc0Uy9Zl5UdKR3aDfkUt3kzsfCMNh22gktDknQ= X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0502MB3694 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Hoang Le In commit 682cd3cf946b6 ("tipc: confgiure and apply UDP bearer MTU on running links"), we introduced a function to change UDP bearer MTU and applied this new value across existing per-link. However, we did not apply this new MTU value at node level. This lead to packet dropped at link level if its size is greater than new MTU value. To fix this issue, we also apply this new MTU value for node level. Fixes: 682cd3cf946b6 ("tipc: confgiure and apply UDP bearer MTU on running links") Acked-by: Jon Maloy Signed-off-by: Hoang Le --- net/tipc/node.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/tipc/node.c b/net/tipc/node.c index cd67b7d5169f..9f6975dd7873 100644 --- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -2182,6 +2182,8 @@ void tipc_node_apply_property(struct net *net, struct tipc_bearer *b, else if (prop == TIPC_NLA_PROP_MTU) tipc_link_set_mtu(e->link, b->mtu); } + /* Update MTU for node link entry */ + e->mtu = tipc_link_mss(e->link); tipc_node_write_unlock(n); tipc_bearer_xmit(net, bearer_id, &xmitq, &e->maddr, NULL); }