linux-kernel - Re: [PATCH 2/2] ip6_vti: fix creating fallback tunnel device for vti6

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Message-Id: <20180819.112759.972635376824399679.davem@davemloft.net>
Date:   Sun, 19 Aug 2018 11:27:59 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     yanhaishuang@...s.chinamobile.com
Cc:     steffen.klassert@...unet.com, kuznet@....inr.ac.ru,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] ip6_vti: fix creating fallback tunnel device for
 vti6

From: Haishuang Yan <yanhaishuang@...s.chinamobile.com>
Date: Sun, 19 Aug 2018 15:05:05 +0800

> When set fb_tunnels_only_for_init_net to 1, don't create fallback tunnel
> device for vti6 when a new namespace is created.
> 
> Tested:
> [root@...lder2 ~]# modprobe ip6_tunnel
> [root@...lder2 ~]# modprobe ip6_vti
> [root@...lder2 ~]# echo 1 > /proc/sys/net/core/fb_tunnels_only_for_init_net
> [root@...lder2 ~]# unshare -n
> [root@...lder2 ~]# ip link
> 1: lo: <LOOPBACK> mtu 65536 qdisc noop state DOWN mode DEFAULT group
> default qlen 1000
>     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> 
> Signed-off-by: Haishuang Yan <yanhaishuang@...s.chinamobile.com>

Applied.