Index: kernel/generic/include/smp/smp.h
===================================================================
--- kernel/generic/include/smp/smp.h	(revision df4ed852a2d1b242f9bdce0a873009a2cb77cec7)
+++ kernel/generic/include/smp/smp.h	(revision c621f4aa64c16cb4d9c2b20dbf5be59c66c25ed3)
@@ -27,5 +27,5 @@
  */
 
-/** @addtogroup generic	
+/** @addtogroup generic
  * @{
  */
@@ -41,8 +41,12 @@
 
 #ifdef CONFIG_SMP
+
 extern void smp_init(void);
 extern void kmp(void *arg);
-#else
+
+#else /* CONFIG_SMP */
+
 #define smp_init()
+
 #endif /* CONFIG_SMP */