359 static int front_len(const struct ceph_msg *msg)  in front_len()  function
361 	return le32_to_cpu(msg->hdr.front_len);  in front_len()
412 static int __tail_onwire_len(int front_len, int middle_len, int data_len,  in __tail_onwire_len()  argument
415 	BUG_ON(front_len < 0 || front_len > CEPH_MSG_MAX_FRONT_LEN ||  in __tail_onwire_len()
419 	if (!front_len && !middle_len && !data_len)  in __tail_onwire_len()
423 		return front_len + middle_len + data_len +  in __tail_onwire_len()
426 	return padded_len(front_len) + padded_len(middle_len) +  in __tail_onwire_len()
432 	return __tail_onwire_len(front_len(msg), middle_len(msg),  in tail_onwire_len()
605 			int front_len, int middle_len, int data_len,  in fill_header()  argument
613 	hdr->front_len = cpu_to_le32(front_len);  in fill_header()
661 	if (front_len(con->in_msg)) {  in verify_epilogue_crcs()
663 					   front_len(con->in_msg));  in verify_epilogue_crcs()
1017 	if (!front_len(msg) && !middle_len(msg) && !data_len(msg))  in setup_message_sgs()
1021 	if (front_len(msg))  in setup_message_sgs()
1023 				      front_len(msg));  in setup_message_sgs()
1043 	if (front_len(msg))  in setup_message_sgs()
1044 		init_sgs(&cur_sg, msg->front.iov_base, front_len(msg),  in setup_message_sgs()
1148 		dpos = padded_len(front_len(con->in_msg) + padded_len(middle_len(con->in_msg)));  in decrypt_tail()
1617 	if (!front_len(msg) && !middle_len(msg)) {  in prepare_message_plain()
1633 	if (front_len(msg)) {  in prepare_message_plain()
1635 						    front_len(msg));  in prepare_message_plain()
1636 		add_out_kvec(con, msg->front.iov_base, front_len(msg));  in prepare_message_plain()
1734 		front_len(con->out_msg),  in prepare_message()
2051 	if (!front_len(msg) && !middle_len(msg)) {  in prepare_read_tail_plain()
2057 	if (front_len(msg)) {  in prepare_read_tail_plain()
2058 		add_in_kvec(con, msg->front.iov_base, front_len(msg));  in prepare_read_tail_plain()
2059 		WARN_ON(msg->front.iov_len != front_len(msg));  in prepare_read_tail_plain()
2938 	if (front_len(msg)) {  in __handle_control()
2939 		WARN_ON(front_len(msg) > msg->front_alloc_len);  in __handle_control()
2940 		msg->front.iov_len = front_len(msg);  in __handle_control()
2951 	if (!front_len(msg) && !middle_len(msg) && !data_len(msg))  in __handle_control()
3461 	WARN_ON(!resid || resid > front_len(con->out_msg));  in prepare_zero_front()
3462 	sent = front_len(con->out_msg) - resid;  in prepare_zero_front()
3515 	boundary = front_len(con->out_msg) + middle_len(con->out_msg);  in revoke_at_queue_data()
3520 		if (front_len(con->out_msg))  in revoke_at_queue_data()
3521 			prepare_zero_front(con, front_len(con->out_msg));  in revoke_at_queue_data()
3583 	if (!front_len(con->out_msg) && !middle_len(con->out_msg) &&  in revoke_at_finish_message()
3591 	boundary = front_len(con->out_msg) + middle_len(con->out_msg) +  in revoke_at_finish_message()
3597 		if (front_len(con->out_msg))  in revoke_at_finish_message()
3598 			prepare_zero_front(con, front_len(con->out_msg));  in revoke_at_finish_message()