From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:38806 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751471AbdCROTo (ORCPT ); Sat, 18 Mar 2017 10:19:44 -0400 Subject: Patch "net: bridge: allow IPv6 when multicast flood is disabled" has been added to the 4.9-stable tree To: mmanning@brocade.com, davem@davemloft.net, gregkh@linuxfoundation.org, nikolay@cumulusnetworks.com Cc: , From: Date: Sat, 18 Mar 2017 22:07:09 +0800 Message-ID: <148984602919083@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled net: bridge: allow IPv6 when multicast flood is disabled to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: net-bridge-allow-ipv6-when-multicast-flood-is-disabled.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Sat Mar 18 22:03:25 CST 2017 From: Mike Manning Date: Wed, 1 Mar 2017 09:55:28 +0000 Subject: net: bridge: allow IPv6 when multicast flood is disabled From: Mike Manning [ Upstream commit 8953de2f02ad7b15e4964c82f9afd60f128e4e98 ] Even with multicast flooding turned off, IPv6 ND should still work so that IPv6 connectivity is provided. Allow this by continuing to flood multicast traffic originated by us. Fixes: b6cb5ac8331b ("net: bridge: add per-port multicast flood flag") Cc: Nikolay Aleksandrov Signed-off-by: Mike Manning Acked-by: Nikolay Aleksandrov Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/bridge/br_forward.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/net/bridge/br_forward.c +++ b/net/bridge/br_forward.c @@ -186,8 +186,9 @@ void br_flood(struct net_bridge *br, str /* Do not flood unicast traffic to ports that turn it off */ if (pkt_type == BR_PKT_UNICAST && !(p->flags & BR_FLOOD)) continue; + /* Do not flood if mc off, except for traffic we originate */ if (pkt_type == BR_PKT_MULTICAST && - !(p->flags & BR_MCAST_FLOOD)) + !(p->flags & BR_MCAST_FLOOD) && skb->dev != br->dev) continue; /* Do not flood to ports that enable proxy ARP */ Patches currently in stable-queue which might be from mmanning@brocade.com are queue-4.9/net-bridge-allow-ipv6-when-multicast-flood-is-disabled.patch