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SubjectRe: [PATCH v5 10/10] [media] v4l: Forbid usage of V4L2_MBUS_FMT definitions inside the kernel
On 11/08/2014 04:47 PM, Boris Brezillon wrote:
> Place v4l2_mbus_pixelcode in a #ifndef __KERNEL__ section so that kernel
> users don't have access to these definitions.
>
> We have to keep this definition for user-space users even though they're
> encouraged to move to the new media_bus_format enum.
>
> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> ---
> include/uapi/linux/v4l2-mediabus.h | 45 ++++++++++++++++++++++++--------------
> 1 file changed, 28 insertions(+), 17 deletions(-)
>
> diff --git a/include/uapi/linux/v4l2-mediabus.h b/include/uapi/linux/v4l2-mediabus.h
> index d712df8..5c9410d 100644
> --- a/include/uapi/linux/v4l2-mediabus.h
> +++ b/include/uapi/linux/v4l2-mediabus.h
> @@ -15,6 +15,33 @@
> #include <linux/types.h>
> #include <linux/videodev2.h>
>
> +/**
> + * struct v4l2_mbus_framefmt - frame format on the media bus
> + * @width: frame width
> + * @height: frame height
> + * @code: data format code (from enum v4l2_mbus_pixelcode)
> + * @field: used interlacing type (from enum v4l2_field)
> + * @colorspace: colorspace of the data (from enum v4l2_colorspace)
> + */
> +struct v4l2_mbus_framefmt {
> + __u32 width;
> + __u32 height;
> + __u32 code;
> + __u32 field;
> + __u32 colorspace;
> + __u32 reserved[7];
> +};
> +
> +#ifndef __KERNEL__
> +/*
> + * enum v4l2_mbus_pixelcode and its definitions are now deprecated, and
> + * MEDIA_BUS_FMT_ definitions (defined in media-bus-format.h) should be
> + * used instead.
> + *
> + * New defines should only be added to media-bus-format.h. The
> + * v4l2_mbus_pixelcode enum is frozen.
> + */
> +
> #define V4L2_MBUS_FROM_MEDIA_BUS_FMT(name) \
> MEDIA_BUS_FMT_ ## name = V4L2_MBUS_FMT_ ## name

Shouldn't this be the other way around?

V4L2_MBUS_FMT_ ## name = MEDIA_BUS_FMT_ ## name

Regards,

Hans

>
> @@ -102,22 +129,6 @@ enum v4l2_mbus_pixelcode {
>
> V4L2_MBUS_FROM_MEDIA_BUS_FMT(AHSV8888_1X32),
> };
> -
> -/**
> - * struct v4l2_mbus_framefmt - frame format on the media bus
> - * @width: frame width
> - * @height: frame height
> - * @code: data format code (from enum v4l2_mbus_pixelcode)
> - * @field: used interlacing type (from enum v4l2_field)
> - * @colorspace: colorspace of the data (from enum v4l2_colorspace)
> - */
> -struct v4l2_mbus_framefmt {
> - __u32 width;
> - __u32 height;
> - __u32 code;
> - __u32 field;
> - __u32 colorspace;
> - __u32 reserved[7];
> -};
> +#endif /* __KERNEL__ */
>
> #endif
>



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