Commit 2be09cb9 authored Nov 23, 2009 by Grant Likely

of: remove special case definition of of_read_ulong()



Special case of of_read_ulong() was defined for PPC32 to toss away
all but the last 32 bits when a large number value was read, and the
'normal' version for ppc64 just #defined of_read_ulong to of_read_number
which causes compiler warnings on MicroBlaze and other 32 bit
architectures because it returns a u64 instead of a ulong.

This patch fixes the problem by defining a common implementation of
of_read_ulong() that works everywhere.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: Michal Simek <monstr@monstr.eu>

parent 02af11b0

include/linux/of.h

+2 −5

Original line number	Diff line number	Diff line
		@@ -113,14 +113,11 @@ static inline u64 of_read_number(const u32 *cell, int size)
		}

		/* Like of_read_number, but we want an unsigned long result */
		#ifdef CONFIG_PPC32
		static inline unsigned long of_read_ulong(const u32 *cell, int size)
		{
		return cell[size-1];
		/* toss away upper bits if unsigned long is smaller than u64 */
		return of_read_number(cell, size);
		}
		#else
		#define of_read_ulong(cell, size) of_read_number(cell, size)
		#endif

		#include <asm/prom.h>