Re: [PATCH] virtio: don't prompt CONFIG_VIRTIO_PCI_MODERN

[Jason Wang]

On 2021/2/19 6:12 下午, Arnd Bergmann wrote:
> On Fri, Feb 19, 2021 at 9:45 AM Jason Wang <jasowang@xxxxxxxxxx> wrote:
> > We used to prompt CONFIG_VIRTIO_PCI_MODERN to user which may bring a
> > lot of confusion. E.g it may break various default configs which want
> > virtio devices.
> >
> > So this patch fixes this by hide the prompot and document the
> > dependency.
> >
> > Cc: Arnd Bergmann <arnd@xxxxxxxx>
> > Cc: Anders Roxell <anders.roxell@xxxxxxxxxx>
> > Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
> > Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx>
> > Fixes: 86b87c9d858b6 ("virtio-pci: introduce modern device module")
> > Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>
> Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
>
> Note that this effectively makes VIRTIO_PCI_MODERN and VIRTIO_PCI
> synonyms, so git goes back to not being able to have VIRTIO_PCI_MODERN
> by itself, but it seems that this is ok because the legacy part was already
> split out.


There will be a vDPA driver that will select VIRTIO_PCI_MODERN_DEV. It 
used to belong to one large sereis, but it was not merged since it needs 
some rebase.

Thanks


>          Arnd