diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h
index dd50e57..a2ae762 100644
--- a/include/asm-s390/smp.h
+++ b/include/asm-s390/smp.h
@@ -52,7 +52,7 @@
 extern int smp_get_cpu(cpumask_t cpu_map);
 extern void smp_put_cpu(int cpu);
 
-extern __inline__ __u16 hard_smp_processor_id(void)
+static inline __u16 hard_smp_processor_id(void)
 {
         __u16 cpu_address;