The !CONFIG_ARM_PATCH_PHYS_VIRT case uses macros for __phys_to_virt and
__virt_to_phys but does not use any type casting. This causes compiler
warnings with LPAE where the phys_addr_t and dma_addr_t are 64-bit:
CC arch/arm/mm/dma-mapping.o
In file included from /work/Linux/linux-marc/include/linux/dma-mapping.h:93:0,
from /work/Linux/linux-marc/arch/arm/mm/dma-mapping.c:19:
/work/Linux/linux-marc/arch/arm/include/asm/dma-mapping.h: In function 'dma_to_virt':
/work/Linux/linux-marc/arch/arm/include/asm/dma-mapping.h:35:9: warning:
cast to pointer from integer of different size
Note that these macros are only valid for lowmem physical addresses
where the range is within 32-bit address range.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
return t;
}
#else
-#define __virt_to_phys(x) ((x) - PAGE_OFFSET + PHYS_OFFSET)
-#define __phys_to_virt(x) ((x) - PHYS_OFFSET + PAGE_OFFSET)
+#define __virt_to_phys(x) ((unsigned long)(x) - PAGE_OFFSET + PHYS_OFFSET)
+#define __phys_to_virt(x) ((unsigned long)(x) - PHYS_OFFSET + PAGE_OFFSET)
#endif
#endif