From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Ahern <dsahern-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: unregister_netdevice: waiting for eth0 to become free. Usage
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Date: Fri, 11 Aug 2017 21:37:00 -0600
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Cc: Cong Wang <xiyou.wangcong-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
        John Stultz <john.stultz-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
        Martin KaFai Lau <kafai-b10kYP2dOMg@public.gmane.org>,
        lkml <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
        Network Development <netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
        Linux USB List <linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
        "David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
        Felipe Balbi <felipe.balbi-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
To: Wei Wang <weiwan-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
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On 8/11/17 6:25 PM, Wei Wang wrote:
> By "a patch to fix that" do you mean after your patch, for every rt6,
> rt6->rt6i_idev will be the same as rt6->dst.dev?

FIB entries should have them the same device with my patch.

The copies done (ip6_rt_cache_alloc and ip6_rt_pcpu_alloc) will have to
set dst.dev to loopback or VRF device for RTF_LOCAL routes; it's the
only way to get local traffic to work and this is similar to what IPv4 does.
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