This is a note to let you know that I've just added the patch titled
vxlan: re-ignore EADDRINUSE from igmp_join
to the 4.1-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:
vxlan-re-ignore-eaddrinuse-from-igmp_join.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From foo@baz Wed Sep 30 05:18:31 CEST 2015
From: Marcelo Ricardo Leitner <[email protected]>
Date: Tue, 25 Aug 2015 20:22:35 -0300
Subject: vxlan: re-ignore EADDRINUSE from igmp_join
From: Marcelo Ricardo Leitner <[email protected]>
[ Upstream commit bef0057b7ba881d5ae67eec876df7a26fe672a59 ]
Before 56ef9c909b40[1] it used to ignore all errors from igmp_join().
That commit enhanced that and made it error out whatever error happened
with igmp_join(), but that's not good because when using multicast
groups vxlan will try to join it multiple times if the socket is reused
and then the 2nd and further attempts will fail with EADDRINUSE.
As we don't track to which groups the socket is already subscribed, it's
okay to just ignore that error.
Fixes: 56ef9c909b40 ("vxlan: Move socket initialization to within rtnl scope")
Reported-by: John Nielsen <[email protected]>
Signed-off-by: Marcelo Ricardo Leitner <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/vxlan.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2212,6 +2212,8 @@ static int vxlan_open(struct net_device
if (vxlan_addr_multicast(&vxlan->default_dst.remote_ip)) {
ret = vxlan_igmp_join(vxlan);
+ if (ret == -EADDRINUSE)
+ ret = 0;
if (ret) {
vxlan_sock_release(vs);
return ret;
Patches currently in stable-queue which might be from [email protected]
are
queue-4.1/vxlan-re-ignore-eaddrinuse-from-igmp_join.patch
queue-4.1/sctp-fix-race-on-protocol-netns-initialization.patch
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