diff --git a/include/rtdef.h b/include/rtdef.h
index 9994c67613..13a3c743ad 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -727,11 +727,11 @@ enum
 #define RT_THREAD_CTRL_INFO             0x03                /**< Get thread information. */
 #define RT_THREAD_CTRL_BIND_CPU         0x04                /**< Set thread bind cpu. */
 
+#ifdef RT_USING_SMP
+
 #define RT_CPU_DETACHED                 RT_CPUS_NR          /**< The thread not running on cpu. */
 #define RT_CPU_MASK                     ((1 << RT_CPUS_NR) - 1) /**< All CPUs mask bit. */
 
-#ifdef RT_USING_SMP
-
 #ifndef RT_SCHEDULE_IPI
 #define RT_SCHEDULE_IPI                 0
 #endif /* RT_SCHEDULE_IPI */
@@ -740,8 +740,6 @@ enum
 #define RT_STOP_IPI                     1
 #endif /* RT_STOP_IPI */
 
-#endif /* RT_USING_SMP */
-
 struct rt_cpu_usage_stats
 {
     rt_uint64_t user;
@@ -778,6 +776,8 @@ struct rt_cpu
 };
 typedef struct rt_cpu *rt_cpu_t;
 
+#endif /* RT_USING_SMP */
+
 struct rt_thread;
 
 #ifdef RT_USING_SMART
diff --git a/include/rthw.h b/include/rthw.h
index 60f97f2329..ed512ac14f 100644
--- a/include/rthw.h
+++ b/include/rthw.h
@@ -127,8 +127,6 @@ void rt_hw_local_irq_enable(rt_base_t level);
 #define rt_hw_interrupt_disable rt_cpus_lock
 #define rt_hw_interrupt_enable rt_cpus_unlock
 #else
-#define rt_hw_local_irq_disable rt_hw_interrupt_disable
-#define rt_hw_local_irq_enable rt_hw_interrupt_enable
 rt_base_t rt_hw_interrupt_disable(void);
 void rt_hw_interrupt_enable(rt_base_t level);
 #endif /*RT_USING_SMP*/
diff --git a/include/rtthread.h b/include/rtthread.h
index 883af363b2..610115134c 100644
--- a/include/rtthread.h
+++ b/include/rtthread.h
@@ -624,11 +624,11 @@ void rt_interrupt_leave(void);
 rt_base_t rt_cpus_lock(void);
 void rt_cpus_unlock(rt_base_t level);
 
-#endif /* RT_USING_SMP */
-
 struct rt_cpu *rt_cpu_self(void);
 struct rt_cpu *rt_cpu_index(int index);
 
+#endif /* RT_USING_SMP */
+
 /*
  * the number of nested interrupts.
  */