+ if (PREDICT_FALSE (tm->add_trace_callback != 0))
+ {
+ return tm->add_trace_callback ((struct vlib_main_t *) vm,
+ (struct vlib_node_runtime_t *) r,
+ (struct vlib_buffer_t *) b,
+ n_data_bytes);
+ }
+ else if (PREDICT_FALSE (tm->trace_enable == 0))