secondary_key     990 kernel/trace/tracing_map.c 			   struct tracing_map_sort_key *secondary_key)
secondary_key    1003 kernel/trace/tracing_map.c 	if (is_key(map, secondary_key->field_idx))
secondary_key    1024 kernel/trace/tracing_map.c 		set_sort_key(map, secondary_key);