--- zzzz-none-000/linux-3.10.107/arch/xtensa/include/asm/traps.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/xtensa/include/asm/traps.h	2021-02-04 17:41:59.000000000 +0000
@@ -19,6 +19,7 @@
  */
 extern void * __init trap_set_handler(int cause, void *handler);
 extern void do_unhandled(struct pt_regs *regs, unsigned long exccause);
+void secondary_trap_init(void);
 
 static inline void spill_registers(void)
 {