Re: [PATCH net-next V2] virtio-net: don't do header check for dodgy gso packets

From: David Miller
Date: Tue Dec 30 2014 - 18:54:10 EST

From: Jason Wang <jasowang@xxxxxxxxxx>
Date: Wed, 24 Dec 2014 11:03:52 +0800

> There's no need to do header check for virtio-net since:
> - Host sets dodgy for all gso packets from guest and check the header.
> - Host should be prepared for all kinds of evil packets from guest, since
> malicious guest can send any kinds of packet.
> So this patch sets NETIF_F_GSO_ROBUST for virtio-net to skip the check.
> Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
> Cc: Michael S. Tsirkin <mst@xxxxxxxxxx>
> Acked-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
> Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>
> ---
> Changes from V1:
> - typo fixes

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