From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] net: skip genenerating uevents for network namespaces
 that are exiting
Date: Sat, 22 Oct 2016 17:00:04 -0400 (EDT)
Message-ID: <20161022.170004.211874574494014545.davem@davemloft.net>
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From: Andrei Vagin <avagin@openvz.org>
Date: Thu, 20 Oct 2016 19:46:26 -0700

> @@ -1525,6 +1530,9 @@ void netdev_unregister_kobject(struct net_device *ndev)
>  {
>  	struct device *dev = &(ndev->dev);
>  
> +	if (!list_empty(&dev_net(ndev)->exit_list))
> +		dev->kobj.uevent_suppress = 1;
> +

Please use "dev_set_uevent_suppress(dev, 1);"