[PATCH 09/10] vfio: Make vfio_container optionally compiled

[Tian, Kevin]

> From: Jason Gunthorpe <jgg at nvidia.com>
> Sent: Wednesday, October 26, 2022 2:51 AM
> 
>  if VFIO
> +config VFIO_CONTAINER
> +	bool "Support for the VFIO container /dev/vfio/vfio"
> +	select VFIO_IOMMU_TYPE1 if MMU && (X86 || S390 || ARM ||
> ARM64)
> +	default y
> +	help
> +	  The VFIO container is the classic interface to VFIO for establishing
> +	  mappings. If N is selected here then IOMMUFD must be used the

establishing IOMMU mappings.

s/used the manage/used to manage/

> manage
> +	  the mappings.
> +
> +	  Unless testing IOMMUFD say Y here.
> +
> +if VFIO_CONTAINER
>  config VFIO_IOMMU_TYPE1
>  	tristate
> -	default n
> +	default MMU && (X86 || S390 || ARM || ARM64)

there are already same conditions for selecting TYPE1 from
VFIO_CONTAINER. what does duplicating conditions here
bring to us?