Messages in this thread Patch in this message | | | Date | Wed, 30 Mar 2011 17:41:59 -0700 | From | Mike Travis <> | Subject | [PATCH 1/2] memblock: add error return when CONFIG_HAVE_MEMBLOCK is not set |
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Subject: memblock: add error return when CONFIG_HAVE_MEMBLOCK is not set Author: Yinghai Lu <yinghai@kernel.org>
Add an error return if CONFIG_HAVE_MEMBLOCK is not set instead of having to add #ifdef CONFIG_HAVE_MEMBLOCK around blocks of code calling that function.
Signed-off-by: Mike Travis <travis@sgi.com> --- include/linux/memblock.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
--- linux.orig/include/linux/memblock.h +++ linux/include/linux/memblock.h @@ -2,6 +2,8 @@ #define _LINUX_MEMBLOCK_H #ifdef __KERNEL__ +#define MEMBLOCK_ERROR 0 + #ifdef CONFIG_HAVE_MEMBLOCK /* * Logical memory blocks. @@ -20,7 +22,6 @@ #include <asm/memblock.h> #define INIT_MEMBLOCK_REGIONS 128 -#define MEMBLOCK_ERROR 0 struct memblock_region { phys_addr_t base; @@ -160,6 +161,12 @@ static inline unsigned long memblock_reg #define __initdata_memblock #endif +#else +static inline phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align) +{ + return MEMBLOCK_ERROR; +} + #endif /* CONFIG_HAVE_MEMBLOCK */ #endif /* __KERNEL__ */
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