diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index fff4a86..c93eb50 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -11,6 +11,7 @@
 extern cpumask_t cpu_core_map[NR_CPUS];
 
 #define topology_core_siblings(cpu)	(cpu_core_map[cpu])
+#define topology_core_cpumask(cpu)	(&cpu_core_map[cpu])
 
 int topology_set_cpu_management(int fc);
 void topology_schedule_update(void);