linux-kernel - [01/84] bridge: fix switched interval for MLD Query types

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Message-ID: <lsq.1375276989.485573342@decadent.org.uk>
Date:	Wed, 31 Jul 2013 15:23:09 +0200
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org,
	"Linus Lüssing" <linus.luessing@....de>,
	"David S. Miller" <davem@...emloft.net>
Subject: [01/84] bridge: fix switched interval for MLD Query types

3.2.50-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Linus Lüssing <linus.luessing@....de>

[ Upstream commit 32de868cbc6bee010d2cee95b5071b25ecbec8c3 ]

General Queries (the one with the Multicast Address field
set to zero / '::') are supposed to have a Maximum Response Delay
of [Query Response Interval], while for Multicast-Address-Specific
Queries it is [Last Listener Query Interval] - not the other way
round. (see RFC2710, section 7.3+7.8)

Signed-off-by: Linus Lüssing <linus.luessing@....de>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 net/bridge/br_multicast.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 5ac1811..b81500c 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -467,8 +467,9 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct net_bridge *br,
 	skb_set_transport_header(skb, skb->len);
 	mldq = (struct mld_msg *) icmp6_hdr(skb);
 
-	interval = ipv6_addr_any(group) ? br->multicast_last_member_interval :
-					  br->multicast_query_response_interval;
+	interval = ipv6_addr_any(group) ?
+			br->multicast_query_response_interval :
+			br->multicast_last_member_interval;
 
 	mldq->mld_type = ICMPV6_MGM_QUERY;
 	mldq->mld_code = 0;

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