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

[Lucas De Marchi]

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: Lucas De Marchi <lucas.demarchi at intel.com>

Lucas De Marchi

>---
> 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
>