linux-kernel - Re: [PATCH] virtio: don't prompt CONFIG_VIRTIO_PCI

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Date:   Fri, 19 Feb 2021 07:38:27 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Jason Wang <jasowang@...hat.com>, mst@...hat.com
Cc:     virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Anders Roxell <anders.roxell@...aro.org>
Subject: Re: [PATCH] virtio: don't prompt CONFIG_VIRTIO_PCI_MODERN

On 2/19/21 12:45 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

... by hiding the prompt and documenting ...

> dependency.
> 
> Cc: Arnd Bergmann <arnd@...db.de>
> Cc: Anders Roxell <anders.roxell@...aro.org>
> Cc: Guenter Roeck <linux@...ck-us.net>
> Reported-by: Naresh Kamboju <naresh.kamboju@...aro.org>
> Fixes: 86b87c9d858b6 ("virtio-pci: introduce modern device module")
> Signed-off-by: Jason Wang <jasowang@...hat.com>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
>  drivers/virtio/Kconfig | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
> index 6b9b81f4b8c2..be7df369bc2b 100644
> --- a/drivers/virtio/Kconfig
> +++ b/drivers/virtio/Kconfig
> @@ -13,12 +13,12 @@ config ARCH_HAS_RESTRICTED_VIRTIO_MEMORY_ACCESS
>  	  VIRTIO_F_ACCESS_PLATFORM
>  
>  config VIRTIO_PCI_MODERN
> -	tristate "Modern Virtio PCI Device"
> -	depends on PCI
> +	tristate
>  	help
>  	  Modern PCI device implementation. This module implements the
>  	  basic probe and control for devices which are based on modern
> -	  PCI device with possible vendor specific extensions.
> +	  PCI device with possible vendor specific extensions. Any
> +	  module that selects this module must depend on PCI.
>  
>  menuconfig VIRTIO_MENU
>  	bool "Virtio drivers"
> @@ -28,7 +28,8 @@ if VIRTIO_MENU
>  
>  config VIRTIO_PCI
>  	tristate "PCI driver for virtio devices"
> -	depends on VIRTIO_PCI_MODERN
> +	depends on PCI
> +	select VIRTIO_PCI_MODERN
>  	select VIRTIO
>  	help
>  	  This driver provides support for virtio based paravirtual device
>