stack_depot_fetch
nr_entries = stack_depot_fetch(stack_depot, &entries);
unsigned int stack_depot_fetch(depot_stack_handle_t handle,
EXPORT_SYMBOL_GPL(stack_depot_fetch);
nr_entries = stack_depot_fetch(stack, &entries);
nr_entries = stack_depot_fetch(handle, &entries);
nr_entries = stack_depot_fetch(object->trace_handle, &entries);
dst_nentries = stack_depot_fetch(handle, &dst_entries);
nr_entries = stack_depot_fetch(origin, &entries);
stack_depot_fetch(head, &chained_entries);
nr_entries = stack_depot_fetch(handle, &entries);
nr_entries = stack_depot_fetch(handle, &entries);
nr_entries = stack_depot_fetch(handle, &entries);