[PATCH 1/9] stringify: add HEX_STRING()

[Randy Dunlap]

From: Randy Dunlap <rdunlap@xxxxxxxxxxxx>

Add HEX_STRING(value) to stringify.h so that drivers can
convert kconfig hex values (without leading "0x") to useful
hex constants.

Several drivers/media/radio/ drivers need this.  I haven't
checked if any other drivers need to do this.

Alternatively, kconfig could produce hex config symbols with
leading "0x".

Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxx>
---
 include/linux/stringify.h |    7 +++++++
 1 file changed, 7 insertions(+)

NOTE: The other 8 patches are on lkml and linux-media mailing lists.

--- linux-next-20110707.orig/include/linux/stringify.h
+++ linux-next-20110707/include/linux/stringify.h
@@ -9,4 +9,11 @@
 #define __stringify_1(x...)	#x
 #define __stringify(x...)	__stringify_1(x)
 
+/*
+ * HEX_STRING(value) is useful for CONFIG_ values that are in hex,
+ * but kconfig does not put a leading "0x" on them.
+ */
+#define HEXSTRINGVALUE(h, value)	h##value
+#define HEX_STRING(value)		HEXSTRINGVALUE(0x, value)
+
 #endif	/* !__LINUX_STRINGIFY_H */
--
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