Re: [PATCH v2] hw/usb: Introduce Kconfig switches for the CCID card devices

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

On 12/11/19 11:20 AM, Thomas Huth wrote:
> In our downstream distribution of QEMU, we need more fine-grained
> control on the set of CCID card devices that we want to include.
> So let's introduce some proper Kconfig switches that it is easier
> to disable them without modifying the corresponding Makefile.objs.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>   v2: Use CONFIG_SMARTCARD in Kconfig.host as suggested by Philippe
> 
>   Kconfig.host         |  3 +++
>   Makefile             |  3 ++-
>   hw/usb/Kconfig       | 12 +++++++++++-
>   hw/usb/Makefile.objs |  9 ++++-----
>   4 files changed, 20 insertions(+), 7 deletions(-)
> 
> diff --git a/Kconfig.host b/Kconfig.host
> index bb6e116e2a..b532358854 100644
> --- a/Kconfig.host
> +++ b/Kconfig.host
> @@ -35,3 +35,6 @@ config VIRTFS
>   
>   config PVRDMA
>       bool
> +
> +config SMARTCARD
> +    bool
> diff --git a/Makefile b/Makefile
> index b437a346d7..287cda35cb 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -388,7 +388,8 @@ MINIKCONF_ARGS = \
>       CONFIG_VHOST_USER=$(CONFIG_VHOST_USER) \
>       CONFIG_VIRTFS=$(CONFIG_VIRTFS) \
>       CONFIG_LINUX=$(CONFIG_LINUX) \
> -    CONFIG_PVRDMA=$(CONFIG_PVRDMA)
> +    CONFIG_PVRDMA=$(CONFIG_PVRDMA) \
> +    CONFIG_SMARTCARD=$(CONFIG_SMARTCARD)

Oh I missed this detail :)

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

>   
>   MINIKCONF_INPUTS = $(SRC_PATH)/Kconfig.host $(SRC_PATH)/hw/Kconfig \
>                      $(wildcard $(SRC_PATH)/hw/*/Kconfig)
> diff --git a/hw/usb/Kconfig b/hw/usb/Kconfig
> index 555e09377b..da3026586f 100644
> --- a/hw/usb/Kconfig
> +++ b/hw/usb/Kconfig
> @@ -90,9 +90,19 @@ config USB_BLUETOOTH
>   config USB_SMARTCARD
>       bool
>       default y
> -    depends on USB
> +    depends on USB && SMARTCARD
>   
>   config USB_STORAGE_MTP
>       bool
>       default y
>       depends on USB
> +
> +config CCID_PASSTHRU
> +    bool
> +    default y
> +    depends on USB_SMARTCARD
> +
> +config CCID_EMULATED
> +    bool
> +    default y
> +    depends on USB_SMARTCARD
> diff --git a/hw/usb/Makefile.objs b/hw/usb/Makefile.objs
> index 303ac084a0..478e6d5752 100644
> --- a/hw/usb/Makefile.objs
> +++ b/hw/usb/Makefile.objs
> @@ -27,13 +27,12 @@ common-obj-$(CONFIG_USB_SERIAL)       += dev-serial.o
>   common-obj-$(CONFIG_USB_NETWORK)      += dev-network.o
>   common-obj-$(CONFIG_USB_BLUETOOTH)    += dev-bluetooth.o
>   
> -ifeq ($(CONFIG_USB_SMARTCARD),y)
> -common-obj-y                          += dev-smartcard-reader.o
> -common-obj-$(CONFIG_SMARTCARD)        += smartcard.mo
> -smartcard.mo-objs := ccid-card-passthru.o ccid-card-emulated.o
> +common-obj-$(CONFIG_USB_SMARTCARD)    += dev-smartcard-reader.o
> +common-obj-$(call lor,$(CONFIG_CCID_PASSTHRU),$(CONFIG_CCID_EMULATED)) += smartcard.mo
> +smartcard.mo-objs := $(call lif,$(CONFIG_CCID_PASSTHRU),ccid-card-passthru.o) \
> +                     $(call lif,$(CONFIG_CCID_EMULATED),ccid-card-emulated.o)
>   smartcard.mo-cflags := $(SMARTCARD_CFLAGS)
>   smartcard.mo-libs := $(SMARTCARD_LIBS)
> -endif
>   
>   ifeq ($(CONFIG_POSIX),y)
>   common-obj-$(CONFIG_USB_STORAGE_MTP)  += dev-mtp.o
>