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Date:   Mon, 22 Feb 2021 11:41:11 +0800
From:   Jason Wang <>
To:     Arnd Bergmann <>
Cc:     "Michael S. Tsirkin" <>,,
        "" <>,
        Arnd Bergmann <>,
        Anders Roxell <>,
        Guenter Roeck <>
Subject: Re: [PATCH] virtio: don't prompt CONFIG_VIRTIO_PCI_MODERN

On 2021/2/19 6:12 下午, Arnd Bergmann wrote:
> On Fri, Feb 19, 2021 at 9:45 AM Jason Wang <> 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 <>
>> Cc: Anders Roxell <>
>> Cc: Guenter Roeck <>
>> Reported-by: Naresh Kamboju <>
>> Fixes: 86b87c9d858b6 ("virtio-pci: introduce modern device module")
>> Signed-off-by: Jason Wang <>
> Acked-by: Arnd Bergmann <>
> 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.


>          Arnd

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