Subject: Re: [PATCH net v2 0/3] fixes two virtio-net related bugs.

From: "Michael S. Tsirkin" <[email-masked]>
Date: Mon, 13 Oct 2025 03:56:35 -0400

On Mon, Oct 13, 2025 at 10:06:26AM +0800, Xuan Zhuo wrote:
> As discussed in http://lore.kernel.org/all/[email-masked]
> Commit #1 Move the flags into the existing if condition; the issue is that it introduces a
> small amount of code duplication.

How were commits 1 and 2 tested?

> Commit #3 is new to fix the hdr len in tunnel gso feature.
> 
> Hi @Paolo Abenchi,
> Could you please test commit #3? I don't have a suitable test environment, as
> QEMU doesn't currently support the tunnel GSO feature.
> 
> Thanks.

AFAIK host_tunnel and guest_tunnel flags enable exactly that.

> Xuan Zhuo (3):
>   virtio-net: fix incorrect flags recording in big mode
>   virtio-net: correct hdr_len handling for VIRTIO_NET_F_GUEST_HDRLEN
>   virtio-net: correct hdr_len handling for tunnel gso
> 
>  drivers/net/virtio_net.c   | 16 ++++++++-----
>  include/linux/virtio_net.h | 46 ++++++++++++++++++++++++++++++++------
>  2 files changed, 50 insertions(+), 12 deletions(-)
> 
> --
> 2.32.0.3.g01195cf9f