netdev - Re: [PATCH v2 net-next 2/2] vxlan: leave multicast group when vxlan device down

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Date:	Wed, 11 Dec 2013 14:21:55 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	gaofeng@...fujitsu.com
Cc:	netdev@...r.kernel.org, stephen@...workplumber.org
Subject: Re: [PATCH v2 net-next 2/2] vxlan: leave multicast group when
 vxlan device down

From: Gao feng <gaofeng@...fujitsu.com>
Date: Tue, 10 Dec 2013 16:37:33 +0800

> vxlan_group_used only allows device to leave multicast group
> when the remote_ip of this vxlan device is difference from
> other vxlan devices' remote_ip. this will cause device not
> leave multicast group untile the vn_sock of this vxlan deivce
> being released.
> 
> The check in vxlan_group_used is not quite precise. since even
> the remote_ip is same, but these vxlan devices may use different
> lower devices, and they may use different vn_socks.
> 
> Only when some vxlan devices use the same vn_sock,same lower
> device and same remote_ip, the mc_list of the vn_sock should
> not be changed.
> 
> Signed-off-by: Gao feng <gaofeng@...fujitsu.com>

Applied.
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