提交 4986e5c7 编写于 作者: M Marek Szyprowski

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: NRussell King <linux@arm.linux.org.uk>
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
上级 e53f517f
......@@ -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)
......
......@@ -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
......
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