364 static int middle_len(const struct ceph_msg *msg)  in middle_len()  function
366 	return le32_to_cpu(msg->hdr.middle_len);  in middle_len()
410 static int __tail_onwire_len(int front_len, int middle_len, int data_len,  in __tail_onwire_len()  argument
413 	if (!front_len && !middle_len && !data_len)  in __tail_onwire_len()
417 		return front_len + middle_len + data_len +  in __tail_onwire_len()
420 	return padded_len(front_len) + padded_len(middle_len) +  in __tail_onwire_len()
426 	return __tail_onwire_len(front_len(msg), middle_len(msg),  in tail_onwire_len()
594 			int front_len, int middle_len, int data_len,  in fill_header()  argument
603 	hdr->middle_len = cpu_to_le32(middle_len);  in fill_header()
654 		WARN_ON(!middle_len(con->in_msg) && !data_len(con->in_msg));  in verify_epilogue_crcs()
658 	if (middle_len(con->in_msg))  in verify_epilogue_crcs()
661 					    middle_len(con->in_msg));  in verify_epilogue_crcs()
973 	if (!front_len(msg) && !middle_len(msg) && !data_len(msg))  in setup_message_sgs()
980 	if (middle_len(msg))  in setup_message_sgs()
982 				      middle_len(msg));  in setup_message_sgs()
996 	if (middle_len(msg))  in setup_message_sgs()
997 		init_sgs(&cur_sg, msg->middle->vec.iov_base, middle_len(msg),  in setup_message_sgs()
1509 	if (!front_len(msg) && !middle_len(msg)) {  in prepare_message_plain()
1534 	if (middle_len(msg)) {  in prepare_message_plain()
1536 			crc32c(-1, msg->middle->vec.iov_base, middle_len(msg));  in prepare_message_plain()
1537 		add_out_kvec(con, msg->middle->vec.iov_base, middle_len(msg));  in prepare_message_plain()
1627 		middle_len(con->out_msg),  in prepare_message()
1826 	if (!front_len(msg) && !middle_len(msg)) {  in prepare_read_tail_plain()
1836 	if (middle_len(msg)) {  in prepare_read_tail_plain()
1837 		add_in_kvec(con, msg->middle->vec.iov_base, middle_len(msg));  in prepare_read_tail_plain()
1838 		WARN_ON(msg->middle->vec.iov_len != middle_len(msg));  in prepare_read_tail_plain()
2717 	if (middle_len(msg)) {  in __handle_control()
2718 		WARN_ON(middle_len(msg) > msg->middle->alloc_len);  in __handle_control()
2719 		msg->middle->vec.iov_len = middle_len(msg);  in __handle_control()
2724 	if (!front_len(msg) && !middle_len(msg) && !data_len(msg))  in __handle_control()
3250 	WARN_ON(!resid || resid > middle_len(con->out_msg));  in prepare_zero_middle()
3251 	sent = middle_len(con->out_msg) - resid;  in prepare_zero_middle()
3283 	boundary = front_len(con->out_msg) + middle_len(con->out_msg);  in revoke_at_queue_data()
3290 		if (middle_len(con->out_msg))  in revoke_at_queue_data()
3291 			prepare_zero_middle(con, middle_len(con->out_msg));  in revoke_at_queue_data()
3298 	boundary = middle_len(con->out_msg);  in revoke_at_queue_data()
3303 		if (middle_len(con->out_msg))  in revoke_at_queue_data()
3304 			prepare_zero_middle(con, middle_len(con->out_msg));  in revoke_at_queue_data()
3351 	if (!front_len(con->out_msg) && !middle_len(con->out_msg) &&  in revoke_at_finish_message()
3359 	boundary = front_len(con->out_msg) + middle_len(con->out_msg) +  in revoke_at_finish_message()
3367 		if (middle_len(con->out_msg))  in revoke_at_finish_message()
3368 			prepare_zero_middle(con, middle_len(con->out_msg));  in revoke_at_finish_message()
3375 	boundary = middle_len(con->out_msg) + CEPH_EPILOGUE_PLAIN_LEN;  in revoke_at_finish_message()
3380 		if (middle_len(con->out_msg))  in revoke_at_finish_message()
3381 			prepare_zero_middle(con, middle_len(con->out_msg));  in revoke_at_finish_message()