extern int cpu_add_dev_attr_group(struct attribute_group *attrs);
extern void cpu_remove_dev_attr_group(struct attribute_group *attrs);
-extern struct device *cpu_device_create(struct device *parent, void *drvdata,
- const struct attribute_group **groups,
- const char *fmt, ...);
+extern __printf(4, 5)
+struct device *cpu_device_create(struct device *parent, void *drvdata,
+ const struct attribute_group **groups,
+ const char *fmt, ...);
#ifdef CONFIG_HOTPLUG_CPU
extern void unregister_cpu(struct cpu *cpu);
extern ssize_t arch_cpu_probe(const char *, size_t);