diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index 696319e..d308f12 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -209,6 +209,7 @@
 #define DCCP_SOCKOPT_CCID_RX_INFO	128
 #define DCCP_SOCKOPT_CCID_TX_INFO	192
 
+/* maximum number of services provided on the same listening port */
 #define DCCP_SERVICE_LIST_MAX_LEN      32
 
 #ifdef __KERNEL__
@@ -355,6 +356,9 @@
   * @dccpms_ccid - Congestion Control Id (CCID) (section 10)
   * @dccpms_send_ack_vector - Send Ack Vector Feature (section 11.5)
   * @dccpms_send_ndp_count - Send NDP Count Feature (7.7.2)
+  * @dccpms_ack_ratio - Ack Ratio Feature (section 11.3)
+  * @dccpms_pending - List of features being negotiated
+  * @dccpms_conf -
   */
 struct dccp_minisock {
 	__u64			dccpms_sequence_window;
@@ -452,14 +456,26 @@
  * @dccps_gss - greatest sequence number sent
  * @dccps_gsr - greatest valid sequence number received
  * @dccps_gar - greatest valid ack number received on a non-Sync; initialized to %dccps_iss
+ * @dccps_service - first (passive sock) or unique (active sock) service code
+ * @dccps_service_list - second .. last service code on passive socket
  * @dccps_timestamp_time - time of latest TIMESTAMP option
  * @dccps_timestamp_echo - latest timestamp received on a TIMESTAMP option
  * @dccps_packet_size - Set thru setsockopt
- * @dccps_role - Role of this sock, one of %dccp_role
+ * @dccps_l_ack_ratio -
+ * @dccps_r_ack_ratio -
  * @dccps_pcslen - sender   partial checksum coverage (via sockopt)
  * @dccps_pcrlen - receiver partial checksum coverage (via sockopt)
  * @dccps_ndp_count - number of Non Data Packets since last data packet
+ * @dccps_mss_cache -
+ * @dccps_minisock -
  * @dccps_hc_rx_ackvec - rx half connection ack vector
+ * @dccps_hc_rx_ccid -
+ * @dccps_hc_tx_ccid -
+ * @dccps_options_received -
+ * @dccps_epoch -
+ * @dccps_role - Role of this sock, one of %dccp_role
+ * @dccps_hc_rx_insert_options -
+ * @dccps_hc_tx_insert_options -
  * @dccps_xmit_timer - timer for when CCID is not ready to send
  */
 struct dccp_sock {