--- zzzz-none-000/linux-3.10.107/arch/sparc/kernel/cpumap.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/sparc/kernel/cpumap.h	2021-02-04 17:41:59.000000000 +0000
@@ -2,8 +2,8 @@
 #define _CPUMAP_H
 
 #ifdef CONFIG_SMP
-extern void cpu_map_rebuild(void);
-extern int  map_to_cpu(unsigned int index);
+void cpu_map_rebuild(void);
+int map_to_cpu(unsigned int index);
 #define cpu_map_init() cpu_map_rebuild()
 #else
 #define cpu_map_init() do {} while (0)