[PATCH] Use '#ifdef' to test for CONFIG options

arch/m68knommu/platform/68VZ328/de2/config.c

@@ -118,7 +118,7 @@ int dragen2_cs8900_setup(struct net_device *dev)
 
 static void init_hardware(void)
 {
-#if CONFIG_DIRECT_IO_ACCESS
+#ifdef CONFIG_DIRECT_IO_ACCESS
 	SCR = 0x10;					/* allow user access to internal registers */
 #endif
 

arch/x86_64/kernel/reboot.c

@@ -124,7 +124,7 @@ void machine_restart(char * __unused)
 {
 	int i;
 
-#if CONFIG_SMP
+#ifdef CONFIG_SMP
 	smp_halt(); 
 #endif
 

kernel/sched.c

@@ -501,7 +501,7 @@ static int try_to_wake_up(task_t * p, unsigned int state, int sync, int kick)
 			}
 			success = 1;
 		}
-#if CONFIG_SMP
+#ifdef CONFIG_SMP
 	       	else
 			if (unlikely(kick) && task_running(rq, p) && (p->thread_info->cpu != smp_processor_id()))
 				smp_send_reschedule(p->thread_info->cpu);