ARM: Add caller information to ioremap

This allows the procfs vmallocinfo file to show who created the ioremap
regions.  Note: __builtin_return_address(0) doesn't do what's expected
if its used in an inline function, so we leave __arm_ioremap callers
in such places alone.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-msm/io.c

@@ -76,5 +76,6 @@ __msm_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype)
 			mtype = MT_DEVICE_NONSHARED;
 	}
 
-	return __arm_ioremap(phys_addr, size, mtype);
+	return __arm_ioremap_caller(phys_addr, size, mtype,
+		__builtin_return_address(0));
 }