[PATCH v2 01/14] iosys-map: Add IOSYS_MAP_INIT_VADDR_IOMEM()

[Sam Ravnborg]

On Mon, Aug 08, 2022 at 02:53:53PM +0200, Thomas Zimmermann wrote:
> Add IOSYS_MAP_INIT_VADDR_IOMEM() for static init of variables of type
> struct iosys_map.
> 
> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Reviewed-by: Sam Ravnborg <sam at ravnborg.org>
> ---
>  include/linux/iosys-map.h | 15 ++++++++++++++-
>  1 file changed, 14 insertions(+), 1 deletion(-)
> 
> diff --git a/include/linux/iosys-map.h b/include/linux/iosys-map.h
> index a533cae189d7..cb71aa616bd3 100644
> --- a/include/linux/iosys-map.h
> +++ b/include/linux/iosys-map.h
> @@ -46,10 +46,13 @@
>   *
>   *	iosys_map_set_vaddr(&map, 0xdeadbeaf);
>   *
> - * To set an address in I/O memory, use iosys_map_set_vaddr_iomem().
> + * To set an address in I/O memory, use IOSYS_MAP_INIT_VADDR_IOMEM() or
> + * iosys_map_set_vaddr_iomem().
>   *
>   * .. code-block:: c
>   *
> + *	struct iosys_map map = IOSYS_MAP_INIT_VADDR_IOMEM(0xdeadbeaf);
> + *
>   *	iosys_map_set_vaddr_iomem(&map, 0xdeadbeaf);
>   *
>   * Instances of struct iosys_map do not have to be cleaned up, but
> @@ -121,6 +124,16 @@ struct iosys_map {
>  		.is_iomem = false,	\
>  	}
>  
> +/**
> + * IOSYS_MAP_INIT_VADDR_IOMEM - Initializes struct iosys_map to an address in I/O memory
> + * @vaddr_iomem_:	An I/O-memory address
> + */
> +#define IOSYS_MAP_INIT_VADDR_IOMEM(vaddr_iomem_)	\
> +	{						\
> +		.vaddr_iomem = (vaddr_iomem_),		\
> +		.is_iomem = true,			\
> +	}
> +
>  /**
>   * IOSYS_MAP_INIT_OFFSET - Initializes struct iosys_map from another iosys_map
>   * @map_:	The dma-buf mapping structure to copy from
> -- 
> 2.37.1