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>
diff --git a/arch/arm/plat-omap/io.c b/arch/arm/plat-omap/io.c
index 0cfd54f..4cbd4fb 100644
--- a/arch/arm/plat-omap/io.c
+++ b/arch/arm/plat-omap/io.c
@@ -128,7 +128,7 @@
 			return XLATE(p, L4_EMU_44XX_PHYS, L4_EMU_44XX_VIRT);
 	}
 #endif
-	return __arm_ioremap(p, size, type);
+	return __arm_ioremap_caller(p, size, type, __builtin_return_address(0));
 }
 EXPORT_SYMBOL(omap_ioremap);