[MIPS] Make MIPS udelay() preempt safe under DEBUG_PREEMPT

Signed-off-by: Manish Lachwani <mlachwani@mvista.com>
Signed-off-by: Deepak Saxena <dsaxena@mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/delay.h b/include/asm-mips/delay.h
index ea77050..223d156 100644
--- a/include/asm-mips/delay.h
+++ b/include/asm-mips/delay.h
@@ -79,7 +79,7 @@
 	__delay(usecs);
 }
 
-#define __udelay_val cpu_data[smp_processor_id()].udelay_val
+#define __udelay_val cpu_data[raw_smp_processor_id()].udelay_val
 
 #define udelay(usecs) __udelay((usecs),__udelay_val)