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authorMarek Szyprowski <m.szyprowski@samsung.com>2012-06-06 12:05:01 +0200
committerMarek Szyprowski <m.szyprowski@samsung.com>2012-06-11 14:30:47 +0200
commit4986e5c7cd91817d0f58dd15073c9080d47980cf (patch)
tree83b20885da5f0572b8ddf810e68d23d79ceca48b /arch/arm
parente53f517ff236a0ec5413ff3935c53406b69bc1e2 (diff)
downloadlinux-4986e5c7cd91817d0f58dd15073c9080d47980cf.tar.gz
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: Russell King <linux@arm.linux.org.uk> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mm/init.c2
-rw-r--r--arch/arm/mm/mm.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index c21d06c7dd7..f54d5921976 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -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)
diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h
index 93dc0c17cdc..c471436c795 100644
--- a/arch/arm/mm/mm.h
+++ b/arch/arm/mm/mm.h
@@ -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