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Commit 4986e5c7 authored by Marek Szyprowski's avatar Marek Szyprowski
Browse files

ARM: mm: fix type of the arm_dma_limit global variable 



arm_dma_limit stores physical address of maximal address accessible by DMA,
so the phys_addr_t type makes much more sense for it instead of u32. This
patch fixes the following build warning:

arch/arm/mm/init.c:380: warning: comparison of distinct pointer types lacks a cast

Reported-by: default avatarRussell King <linux@arm.linux.org.uk>
Signed-off-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
parent e53f517f

arch/arm/mm/init.c

+1 −1
Original line number Diff line number Diff line
@@ -212,7 +212,7 @@ EXPORT_SYMBOL(arm_dma_zone_size); 
 * allocations.  This must be the smallest DMA mask in the system,

 * so a successful GFP_DMA allocation will always satisfy this.

 */

u32 arm_dma_limit;

phys_addr_t arm_dma_limit;



static void __init arm_adjust_dma_zone(unsigned long *size, unsigned long *hole,

	unsigned long dma_size)

arch/arm/mm/mm.h

+1 −1
Original line number Diff line number Diff line
@@ -62,7 +62,7 @@ extern void __flush_dcache_page(struct address_space *mapping, struct page *page 
#endif



#ifdef CONFIG_ZONE_DMA

extern u32 arm_dma_limit;

extern phys_addr_t arm_dma_limit;

#else

#define arm_dma_limit ((u32)~0)

#endif