s390/dumpstack: get rid of return_address again

[cascardo/linux.git] / arch / s390 / kernel / dumpstack.c

diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 4bebe72..34345c0 100644 (file)
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -87,30 +87,6 @@ void dump_trace(dump_trace_func_t func, void *data, struct task_struct *task,
 }
 EXPORT_SYMBOL_GPL(dump_trace);
 
-struct return_address_data {
-       unsigned long address;
-       int depth;
-};
-
-static int __return_address(void *data, unsigned long address, int reliable)
-{
-       struct return_address_data *rd = data;
-
-       if (rd->depth--)
-               return 0;
-       rd->address = address;
-       return 1;
-}
-
-unsigned long return_address(int depth)
-{
-       struct return_address_data rd = { .depth = depth + 2 };
-
-       dump_trace(__return_address, &rd, NULL, current_stack_pointer());
-       return rd.address;
-}
-EXPORT_SYMBOL_GPL(return_address);
-
 static int show_address(void *data, unsigned long address, int reliable)
 {
        if (reliable)