From patchwork Fri Mar 19 14:00:23 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiri Pirko X-Patchwork-Id: 48154 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 07EBBB7CB9 for ; Sat, 20 Mar 2010 01:00:46 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752613Ab0CSOAk (ORCPT ); Fri, 19 Mar 2010 10:00:40 -0400 Received: from mx1.redhat.com ([209.132.183.28]:2912 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752543Ab0CSOAj (ORCPT ); Fri, 19 Mar 2010 10:00:39 -0400 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o2JE0S9g031232 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 19 Mar 2010 10:00:28 -0400 Received: from localhost (vpn-235-169.phx2.redhat.com [10.3.235.169]) by int-mx02.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o2JE0Od9016284; Fri, 19 Mar 2010 10:00:26 -0400 Date: Fri, 19 Mar 2010 15:00:23 +0100 From: Jiri Pirko To: netdev@vger.kernel.org Cc: fubar@us.ibm.com, bonding-devel@lists.sourceforge.net, davem@davemloft.net Subject: [net-next-2.6 PATCH] bonding: flush unicast and multicast lists when changing type Message-ID: <20100319140023.GC2811@psychotron.redhat.com> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-08-17) X-Scanned-By: MIMEDefang 2.67 on 10.5.11.12 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org After the type change, addresses in unicast and multicast lists wouldn't make sense, not to mention possible different lenghts. So flush both lists here. Note "dev_addr_discard" will be very soon replaced by "dev_mc_flush" (once mc_list conversion will be done). Signed-off-by: Jiri Pirko --- drivers/net/bonding/bond_main.c | 4 ++++ include/linux/netdevice.h | 2 ++ net/core/dev.c | 6 ++++-- 3 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index cbe9e35..c2aceaa 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1490,6 +1490,10 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) goto err_undo_flags; } + /* Flush unicast and multicast addresses */ + dev_unicast_flush(bond_dev); + dev_addr_discard(bond_dev); + if (slave_dev->type != ARPHRD_ETHER) bond_setup_by_slave(bond_dev, slave_dev); else diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 813bed7..3cff4ba 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1994,10 +1994,12 @@ extern int dev_unicast_delete(struct net_device *dev, void *addr); extern int dev_unicast_add(struct net_device *dev, void *addr); extern int dev_unicast_sync(struct net_device *to, struct net_device *from); extern void dev_unicast_unsync(struct net_device *to, struct net_device *from); +extern void dev_unicast_flush(struct net_device *dev); extern int dev_mc_delete(struct net_device *dev, void *addr, int alen, int all); extern int dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly); extern int dev_mc_sync(struct net_device *to, struct net_device *from); extern void dev_mc_unsync(struct net_device *to, struct net_device *from); +extern void dev_addr_discard(struct net_device *dev); extern int __dev_addr_delete(struct dev_addr_list **list, int *count, void *addr, int alen, int all); extern int __dev_addr_add(struct dev_addr_list **list, int *count, void *addr, int alen, int newonly); extern int __dev_addr_sync(struct dev_addr_list **to, int *to_count, struct dev_addr_list **from, int *from_count); diff --git a/net/core/dev.c b/net/core/dev.c index d1f027c..80a0608 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4455,12 +4455,13 @@ void dev_unicast_unsync(struct net_device *to, struct net_device *from) } EXPORT_SYMBOL(dev_unicast_unsync); -static void dev_unicast_flush(struct net_device *dev) +void dev_unicast_flush(struct net_device *dev) { netif_addr_lock_bh(dev); __hw_addr_flush(&dev->uc); netif_addr_unlock_bh(dev); } +EXPORT_SYMBOL(dev_unicast_flush); static void dev_unicast_init(struct net_device *dev) { @@ -4482,7 +4483,7 @@ static void __dev_addr_discard(struct dev_addr_list **list) } } -static void dev_addr_discard(struct net_device *dev) +void dev_addr_discard(struct net_device *dev) { netif_addr_lock_bh(dev); @@ -4491,6 +4492,7 @@ static void dev_addr_discard(struct net_device *dev) netif_addr_unlock_bh(dev); } +EXPORT_SYMBOL(dev_addr_discard); /** * dev_get_flags - get flags reported to userspace