Fixed buglet with previous patch that broke non au1x builds.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/au1000/common/time.c

@@ -57,7 +57,7 @@ unsigned long missed_heart_beats = 0;
 static unsigned long r4k_offset; /* Amount to increment compare reg each time */
 static unsigned long r4k_cur;    /* What counter should be at next timer irq */
 int	no_au1xxx_32khz;
-int allow_au1k_wait = 0; /* default off for CP0 Counter */
+extern int allow_au1k_wait; /* default off for CP0 Counter */
 
 /* Cycle counter value at the previous timer interrupt.. */
 static unsigned int timerhi = 0, timerlo = 0;

arch/mips/kernel/cpu-probe.c

@@ -53,9 +53,10 @@ static void r4k_wait(void)
 
 /* The Au1xxx wait is available only if using 32khz counter or
  * external timer source, but specifically not CP0 Counter. */
+int allow_au1k_wait;
 static void au1k_wait(void)
 {
-	unsigned long addr;
+	unsigned long addr = 0;
 	/* using the wait instruction makes CP0 counter unusable */
 	__asm__("la %0,au1k_wait\n\t"
 		".set mips3\n\t"
@@ -113,14 +114,11 @@ static inline void check_wait(void)
 	case CPU_AU1500:
 	case CPU_AU1550:
 	case CPU_AU1200:
-		{
-			extern int allow_au1k_wait; /* au1000/common/time.c */
 		if (allow_au1k_wait) {
 			cpu_wait = au1k_wait;
 			printk(" available.\n");
 		} else
 			printk(" unavailable.\n");
-		}
 		break;
 	default:
 		printk(" unavailable.\n");