From patchwork Fri Mar 13 14:08:22 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Venkat Venkatsubra X-Patchwork-Id: 449958 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 93B381400DE for ; Sat, 14 Mar 2015 01:08:44 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751747AbbCMOIk (ORCPT ); Fri, 13 Mar 2015 10:08:40 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:44466 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751214AbbCMOIj (ORCPT ); Fri, 13 Mar 2015 10:08:39 -0400 Received: from acsinet21.oracle.com (acsinet21.oracle.com [141.146.126.237]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id t2DE8bbe014145 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Mar 2015 14:08:38 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by acsinet21.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id t2DE8aAj022652 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 13 Mar 2015 14:08:37 GMT Received: from abhmp0007.oracle.com (abhmp0007.oracle.com [141.146.116.13]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id t2DE8aEM013766; Fri, 13 Mar 2015 14:08:36 GMT Received: from oracle.com (/139.185.48.5) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Mar 2015 07:08:36 -0700 Date: Fri, 13 Mar 2015 07:08:22 -0700 From: Venkat Venkatsubra To: netdev@vger.kernel.org Cc: davem@davemloft.net Subject: [PATCH] bridge: reset bridge mtu after deleting an interface Message-ID: <20150313140822.GA30448@oracle.com> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.18 (2008-05-17) X-Source-IP: acsinet21.oracle.com [141.146.126.237] Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On adding an interface br_add_if() sets the MTU to the min of all the interfaces. Do the same thing on removing an interface too in br_del_if. Signed-off-by: Venkat Venkatsubra Acked-by: Roopa Prabhu --- net/bridge/br_if.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index b087d27..1849d96 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -563,6 +563,8 @@ int br_del_if(struct net_bridge *br, struct net_device *dev) */ del_nbp(p); + dev_set_mtu(br->dev, br_min_mtu(br)); + spin_lock_bh(&br->lock); changed_addr = br_stp_recalculate_bridge_id(br); spin_unlock_bh(&br->lock);