diff --git a/include/linux/smp.h b/include/linux/smp.h
index 22b451d..9dfa3ee 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -94,23 +94,11 @@
  */
 #define raw_smp_processor_id()			0
 #define hard_smp_processor_id()			0
-#define num_booting_cpus()			1
-
-static inline int smp_call_function(void (*func) (void *), void *info,
-				    int retry, int wait)
-{
-	return 0;
-}
-
-static inline int on_each_cpu(void (*func) (void *), void *info,
-			      int retry, int wait)
-{
-	func(info);
-	return 0;
-}
-
+#define smp_call_function(func,info,retry,wait)	({ 0; })
+#define on_each_cpu(func,info,retry,wait)	({ func(info); 0; })
 static inline void smp_send_reschedule(int cpu) { }
-static inline void smp_prepare_boot_cpu(void) { }
+#define num_booting_cpus()			1
+#define smp_prepare_boot_cpu()			do {} while (0)
 
 #endif /* !SMP */