From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933184Ab0G3S2k (ORCPT ); Fri, 30 Jul 2010 14:28:40 -0400 Received: from kroah.org ([198.145.64.141]:58233 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759920Ab0G3RzU (ORCPT ); Fri, 30 Jul 2010 13:55:20 -0400 X-Mailbox-Line: From gregkh@clark.site Fri Jul 30 10:51:40 2010 Message-Id: <20100730175140.078725467@clark.site> User-Agent: quilt/0.48-11.2 Date: Fri, 30 Jul 2010 10:51:28 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org, Emil S Tantilov Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, NetDev , Greg KH , "David S. Miller" , , Stephen Hemminger Subject: [071/205] IPv6: keep route for tentative address In-Reply-To: <20100730175238.GA3924@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.34-stable review patch. If anyone has any objections, please let us know. ------------------ From: Stephen Hemminger (cherry picked from commit 93fa159abe50d3c55c7f83622d3f5c09b6e06f4b) Recent changes preserve IPv6 address when link goes down (good). But would cause address to point to dead dst entry (bad). The simplest fix is to just not delete route if address is being held for later use. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/ipv6/addrconf.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -4047,7 +4047,8 @@ static void __ipv6_ifa_notify(int event, addrconf_leave_anycast(ifp); addrconf_leave_solict(ifp->idev, &ifp->addr); dst_hold(&ifp->rt->u.dst); - if (ip6_del_rt(ifp->rt)) + + if (ifp->dead && ip6_del_rt(ifp->rt)) dst_free(&ifp->rt->u.dst); break; }