[PATCH 08/13] Add helpers to define resources

Alexander Shiyan shc_work at mail.ru
Mon Mar 11 05:26:38 EDT 2013


This patch adds helpers to define resources, such as
DEFINE_RES_NAMED, DEFINE_RES_MEM and DEFINE_RES_MEM_NAMED.

Signed-off-by: Alexander Shiyan <shc_work at mail.ru>
---
 include/linux/ioport.h |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 6d6cd68..ff0cba0 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -111,10 +111,25 @@ struct resource {
 /* PCI control bits.  Shares IORESOURCE_BITS with above PCI ROM.  */
 #define IORESOURCE_PCI_FIXED		(1<<4)	/* Do not move resource */
 
+/* Helpers to define resources */
+#define DEFINE_RES_NAMED(_start, _size, _name, _flags)	\
+	{						\
+		.start	= (_start),			\
+		.end	= (_start) + (_size) - 1,	\
+		.name	= (_name),			\
+		.flags	= (_flags),			\
+	}
+
+#define DEFINE_RES_MEM_NAMED(_start, _size, _name)	\
+	DEFINE_RES_NAMED((_start), (_size), (_name), IORESOURCE_MEM)
+#define DEFINE_RES_MEM(_start, _size)			\
+	DEFINE_RES_MEM_NAMED((_start), (_size), NULL)
+
 static inline resource_size_t resource_size(const struct resource *res)
 {
 	return res->end - res->start + 1;
 }
+
 static inline unsigned long resource_type(const struct resource *res)
 {
 	return res->flags & IORESOURCE_TYPE_BITS;
-- 
1.7.3.4




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