.packet_avail_size = NULL, /* Would be racy anyway */
.get_writer_buf_wait_queue = ltt_get_writer_buf_wait_queue,
.get_hp_wait_queue = ltt_get_hp_wait_queue,
.packet_avail_size = NULL, /* Would be racy anyway */
.get_writer_buf_wait_queue = ltt_get_writer_buf_wait_queue,
.get_hp_wait_queue = ltt_get_hp_wait_queue,