[PATCH v4 13/13] ARM: fix type of PHYS_PFN_OFFSET to unsigned long
cyril at ti.com
Thu Jan 31 16:58:32 EST 2013
On LPAE machines, PHYS_OFFSET evaluates to a phys_addr_t and this type is
inherited by the PHYS_PFN_OFFSET definition as well. Consequently, the kernel
build emits warnings of the form:
init/main.c: In function 'start_kernel':
init/main.c:588:7: warning: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'phys_addr_t' [-Wformat]
This patch fixes this warning by pinning down the PFN type to unsigned long.
Signed-off-by: Cyril Chemparathy <cyril at ti.com>
arch/arm/include/asm/memory.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index f3a7f76..32e9e5a 100644
@@ -223,7 +223,7 @@ static inline unsigned long __phys_to_virt(unsigned long x)
* direct-mapped view. We assume this is the first page
* of RAM in the mem_map as well.
-#define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT)
+#define PHYS_PFN_OFFSET ((unsigned long)(PHYS_OFFSET >> PAGE_SHIFT))
* These are *only* valid on the kernel direct mapped RAM memory.
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