Re: [PATCH V2 net-next 5/7] tun: support receiving skb through msg_control

[Jason Wang]

On 2017å03æ30æ 23:06, Michael S. Tsirkin wrote:
> On Thu, Mar 30, 2017 at 03:22:28PM +0800, Jason Wang wrote:
> > This patch makes tun_recvmsg() can receive from skb from its caller
> > through msg_control. Vhost_net will be the first user.
> >
> > Signed-off-by: Jason Wang<jasowang@xxxxxxxxxx>
> Do we need to bother with tun? I didn't realize one
> can even use that with vhost. What would be the point of
> all the virtio header stuff dealing with checksums etc?
>
> Even if you see a use-case is it worth optimizing?

It's for tap in fact. I use "tun" just because we have already had a 
tap.c which is used by macvtap.

Thanks