From patchwork Wed Dec 1 08:08:21 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Xin, Xiaohui" X-Patchwork-Id: 370251 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id oB17nweN012230 for ; Wed, 1 Dec 2010 07:49:58 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753870Ab0LAHqo (ORCPT ); Wed, 1 Dec 2010 02:46:44 -0500 Received: from mga02.intel.com ([134.134.136.20]:19205 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753820Ab0LAHqk (ORCPT ); Wed, 1 Dec 2010 02:46:40 -0500 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 30 Nov 2010 23:46:39 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.59,282,1288594800"; d="scan'208";a="682672377" Received: from unknown (HELO localhost.localdomain.sh.intel.com) ([10.239.36.138]) by orsmga001.jf.intel.com with ESMTP; 30 Nov 2010 23:46:38 -0800 From: xiaohui.xin@intel.com To: netdev@vger.kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mst@redhat.com, mingo@elte.hu, davem@davemloft.net, herbert@gondor.hengli.com.au, jdike@linux.intel.com Cc: Xin Xiaohui Subject: [PATCH v16 10/17] If device is in zero-copy mode first, bonding will fail. Date: Wed, 1 Dec 2010 16:08:21 +0800 Message-Id: <8975fe27df1b0bc2da53c579a05648507153fd85.1291187695.git.xiaohui.xin@intel.com> X-Mailer: git-send-email 1.7.3 In-Reply-To: References: In-Reply-To: References: Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Wed, 01 Dec 2010 07:49:58 +0000 (UTC) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 3b16f62..dfb6a2c 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1428,6 +1428,10 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) bond_dev->name); } + /* if the device is in zero-copy mode before bonding, fail it. */ + if (dev_is_mpassthru(slave_dev)) + return -EBUSY; + /* already enslaved */ if (slave_dev->flags & IFF_SLAVE) { pr_debug("Error, Device was already enslaved\n");