diff options
authorDaniel Borkmann <>2013-08-29 23:55:05 +0200
committerDavid S. Miller <>2013-08-30 17:56:47 -0400
commit2d98c29b6fb3de44d9eaa73c09f9cf7209346383 (patch)
parent0d63c27d9e879a0b54eb405636d60ab12040ca46 (diff)
net: bridge: convert MLDv2 Query MRC into msecs_to_jiffies for max_delay
While looking into MLDv1/v2 code, I noticed that bridging code does not convert it's max delay into jiffies for MLDv2 messages as we do in core IPv6' multicast code. RFC3810, 5.1.3. Maximum Response Code says: The Maximum Response Code field specifies the maximum time allowed before sending a responding Report. The actual time allowed, called the Maximum Response Delay, is represented in units of milliseconds, and is derived from the Maximum Response Code as follows: [...] As we update timers that work with jiffies, we need to convert it. Signed-off-by: Daniel Borkmann <> Cc: Linus L├╝ssing <> Cc: Hannes Frederic Sowa <> Signed-off-by: David S. Miller <>
1 files changed, 2 insertions, 1 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 9d1d0e6..bbcb435 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1254,7 +1254,8 @@ static int br_ip6_multicast_query(struct net_bridge *br,
mld2q = (struct mld2_query *)icmp6_hdr(skb);
if (!mld2q->mld2q_nsrcs)
group = &mld2q->mld2q_mca;
- max_delay = mld2q->mld2q_mrc ? MLDV2_MRC(ntohs(mld2q->mld2q_mrc)) : 1;
+ max_delay = max(msecs_to_jiffies(MLDV2_MRC(ntohs(mld2q->mld2q_mrc))), 1UL);
br_multicast_query_received(br, port, &br->ip6_querier,