--- zzzz-none-000/linux-3.10.107/arch/sparc/include/asm/ptrace.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/sparc/include/asm/ptrace.h	2021-02-04 17:41:59.000000000 +0000
@@ -73,7 +73,7 @@
 	return regs->u_regs[UREG_I0];
 }
 #ifdef CONFIG_SMP
-extern unsigned long profile_pc(struct pt_regs *);
+unsigned long profile_pc(struct pt_regs *);
 #else
 #define profile_pc(regs) instruction_pointer(regs)
 #endif