OpenRISC: Export dump_stack()

dump_stack() is used by modules and needs to be exported.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Jonas Bonn <jonas@southpole.se>
diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c
index a4ec44a..ab68ffc 100644
--- a/arch/openrisc/kernel/traps.c
+++ b/arch/openrisc/kernel/traps.c
@@ -115,6 +115,7 @@
 
 	show_stack(current, &stack);
 }
+EXPORT_SYMBOL(dump_stack);
 
 void show_registers(struct pt_regs *regs)
 {