Re: [PATCH net 3/4] virtio-net: create a helper to check received mergeable buffer's length

[Jason Wang]

On Thu, Jun 26, 2025 at 11:38 PM Bui Quang Minh
<minhquangbui99@xxxxxxxxx> wrote:
>
> On 6/26/25 09:38, Jason Wang wrote:
> > On Thu, Jun 26, 2025 at 12:10 AM Bui Quang Minh
> > <minhquangbui99@xxxxxxxxx> wrote:
> >> Currently, we have repeated code to check the received mergeable buffer's
> >> length with allocated size. This commit creates a helper to do that and
> >> converts current code to use it.
> >>
> >> Signed-off-by: Bui Quang Minh <minhquangbui99@xxxxxxxxx>
> > I think it would be better to introduce this as patch 1, so a
> > mergeable XDP path can use that directly.
> >
> > This will have a smaller changeset.
>
> I'm just concerned that it might make backporting the fix harder because
> the fix depends on this refactor and this refactor touches some function
> that may create conflict.

We can make it a single patch that contains:

1) new helper
2) fixes

as long as the changeset meets the requirement of -stable.

Thanks

>
> Thanks,
> Quang Minh.
>