diff --git a/arch/arm/include/asm/smp_scu.h b/arch/arm/include/asm/smp_scu.h
index bfe163c40024..5983f6bc62d5 100644
--- a/arch/arm/include/asm/smp_scu.h
+++ b/arch/arm/include/asm/smp_scu.h
@@ -7,6 +7,7 @@
 
 #ifndef __ASSEMBLER__
 
+#include <linux/errno.h>
 #include <asm/cputype.h>
 
 static inline bool scu_a9_has_base(void)