diff --git a/arch/sparc/include/asm/smp_64.h b/arch/sparc/include/asm/smp_64.h
index e75783b6abc4..505b6700805d 100644
--- a/arch/sparc/include/asm/smp_64.h
+++ b/arch/sparc/include/asm/smp_64.h
@@ -49,7 +49,7 @@ int hard_smp_processor_id(void);
 
 void smp_fill_in_cpu_possible_map(void);
 void smp_fill_in_sib_core_maps(void);
-void cpu_play_dead(void);
+void __noreturn cpu_play_dead(void);
 
 void smp_fetch_global_regs(void);
 void smp_fetch_global_pmu(void);