ACPI / glue: Update DBG macro to include KERN_DEBUG

Currently these DBG statements are emitted at KERN_DEFAULT.
Change the macro to emit at KERN_DEBUG.

This can help avoid unexpected message interleaving.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/glue.c

@@ -18,9 +18,14 @@
 
 #define ACPI_GLUE_DEBUG	0
 #if ACPI_GLUE_DEBUG
-#define DBG(x...) printk(PREFIX x)
+#define DBG(fmt, ...)						\
+	printk(KERN_DEBUG PREFIX fmt, ##__VA_ARGS__)
 #else
-#define DBG(x...) do { } while(0)
+#define DBG(fmt, ...)						\
+do {								\
+	if (0)							\
+		printk(KERN_DEBUG PREFIX fmt, ##__VA_ARGS__);	\
+} while (0)
 #endif
 static LIST_HEAD(bus_type_list);
 static DECLARE_RWSEM(bus_type_sem);