diff --git a/arch/arm/include/asm/traps.h b/arch/arm/include/asm/traps.h
index aa399ae..491960b 100644
--- a/arch/arm/include/asm/traps.h
+++ b/arch/arm/include/asm/traps.h
@@ -25,5 +25,6 @@
 }
 
 extern void __init early_trap_init(void);
+extern void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame);
 
 #endif