Re: [PATCH v2] configure: simplify vhost condition with Kconfig

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 12/12/19 1:30 AM, Paolo Bonzini wrote:
> From: Marc-André Lureau <marcandre.lureau@redhat.com>
> 
> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>   Kconfig.host            | 5 +++++
>   Makefile                | 1 +
>   hw/virtio/Kconfig       | 3 +++
>   hw/virtio/Makefile.objs | 4 ++--
>   4 files changed, 11 insertions(+), 2 deletions(-)
> 
> diff --git a/Kconfig.host b/Kconfig.host
> index bb6e116..55136e0 100644
> --- a/Kconfig.host
> +++ b/Kconfig.host
> @@ -25,6 +25,11 @@ config TPM
>   
>   config VHOST_USER
>       bool
> +    select VHOST
> +
> +config VHOST_KERNEL
> +    bool
> +    select VHOST
>   
>   config XEN
>       bool
> diff --git a/Makefile b/Makefile
> index 96e69dd..a74c2f2 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -382,6 +382,7 @@ MINIKCONF_ARGS = \
>       CONFIG_OPENGL=$(CONFIG_OPENGL) \
>       CONFIG_X11=$(CONFIG_X11) \
>       CONFIG_VHOST_USER=$(CONFIG_VHOST_USER) \
> +    CONFIG_VHOST_KERNEL=$(CONFIG_VHOST_KERNEL) \
>       CONFIG_VIRTFS=$(CONFIG_VIRTFS) \
>       CONFIG_LINUX=$(CONFIG_LINUX) \
>       CONFIG_PVRDMA=$(CONFIG_PVRDMA)
> diff --git a/hw/virtio/Kconfig b/hw/virtio/Kconfig
> index 3724ff8..f87def2 100644
> --- a/hw/virtio/Kconfig
> +++ b/hw/virtio/Kconfig
> @@ -1,3 +1,6 @@
> +config VHOST
> +    bool
> +
>   config VIRTIO
>       bool
>   
> diff --git a/hw/virtio/Makefile.objs b/hw/virtio/Makefile.objs
> index e2f70fb..de0f5fc 100644
> --- a/hw/virtio/Makefile.objs
> +++ b/hw/virtio/Makefile.objs
> @@ -2,8 +2,8 @@ ifeq ($(CONFIG_VIRTIO),y)
>   common-obj-y += virtio-bus.o
>   obj-y += virtio.o
>   
> -obj-$(call lor,$(CONFIG_VHOST_USER),$(CONFIG_VHOST_KERNEL)) += vhost.o vhost-backend.o
> -common-obj-$(call lnot,$(call lor,$(CONFIG_VHOST_USER),$(CONFIG_VHOST_KERNEL))) += vhost-stub.o
> +obj-$(CONFIG_VHOST) += vhost.o vhost-backend.o
> +common-obj-$(call lnot,$(CONFIG_VHOST)) += vhost-stub.o
>   obj-$(CONFIG_VHOST_USER) += vhost-user.o
>   
>   common-obj-$(CONFIG_VIRTIO_RNG) += virtio-rng.o
>