From mboxrd@z Thu Jan  1 00:00:00 1970
From: Wei Liu <wei.liu2@citrix.com>
Subject: Re: [PATCH net-next v2] xen-netback: implement dynamic multicast
 control
Date: Tue, 2 Feb 2016 11:46:46 +0000
Message-ID: <20160202114646.GF10990@citrix.com>
References: <1454412668-6472-1-git-send-email-paul.durrant@citrix.com>
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Cc: <netdev@vger.kernel.org>, <xen-devel@lists.xenproject.org>,
	Ian Campbell <ian.campbell@citrix.com>,
	Wei Liu <wei.liu2@citrix.com>
To: Paul Durrant <paul.durrant@citrix.com>
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On Tue, Feb 02, 2016 at 11:31:08AM +0000, Paul Durrant wrote:
[...]
> +static int xen_register_mcast_ctrl_watch(struct xenbus_device *dev,
> +					 struct xenvif *vif)
> +{
> +	int err = 0;
> +	char *node;
> +	unsigned maxlen = strlen(dev->otherend) +
> +		sizeof("/request-multicast-control");
> +
> +	if (vif->mcast_ctrl_watch.node)
> +		return -EADDRINUSE;
> +

Sorry if I didn't make myself clear enough. I think EADDRINUSE should
also be logged.

Wei.