diff --git a/net/dccp/input.c b/net/dccp/input.c
index f53e3fc..bfc5366 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -60,7 +60,7 @@
 {
 	struct dccp_sock *dp = dccp_sk(sk);
 
-	if (dp->dccps_options.dccpo_send_ack_vector)
+	if (dccp_msk(sk)->dccpms_send_ack_vector)
 		dccp_ackvec_check_rcv_ackno(dp->dccps_hc_rx_ackvec, sk,
 					    DCCP_SKB_CB(skb)->dccpd_ack_seq);
 }
@@ -246,7 +246,7 @@
 	if (DCCP_SKB_CB(skb)->dccpd_ack_seq != DCCP_PKT_WITHOUT_ACK_SEQ)
 		dccp_event_ack_recv(sk, skb);
 
-	if (dp->dccps_options.dccpo_send_ack_vector &&
+	if (dccp_msk(sk)->dccpms_send_ack_vector &&
 	    dccp_ackvec_add(dp->dccps_hc_rx_ackvec, sk,
 			    DCCP_SKB_CB(skb)->dccpd_seq,
 			    DCCP_ACKVEC_STATE_RECEIVED))
@@ -302,7 +302,7 @@
 		if (dccp_parse_options(sk, skb))
 			goto out_invalid_packet;
 
-                if (dp->dccps_options.dccpo_send_ack_vector &&
+                if (dccp_msk(sk)->dccpms_send_ack_vector &&
                     dccp_ackvec_add(dp->dccps_hc_rx_ackvec, sk,
                                     DCCP_SKB_CB(skb)->dccpd_seq,
                                     DCCP_ACKVEC_STATE_RECEIVED))
@@ -486,7 +486,7 @@
 		if (dcb->dccpd_ack_seq != DCCP_PKT_WITHOUT_ACK_SEQ)
 			dccp_event_ack_recv(sk, skb);
 
- 		if (dp->dccps_options.dccpo_send_ack_vector &&
+ 		if (dccp_msk(sk)->dccpms_send_ack_vector &&
 		    dccp_ackvec_add(dp->dccps_hc_rx_ackvec, sk,
  				    DCCP_SKB_CB(skb)->dccpd_seq,
  				    DCCP_ACKVEC_STATE_RECEIVED))