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-rw-r--r--include/linux/dccp.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index f91c8a62406..a70d1a27e7f 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -329,9 +329,18 @@ static inline unsigned int dccp_hdr_len(const struct sk_buff *skb)
/* initial values for each feature */
#define DCCPF_INITIAL_SEQUENCE_WINDOW 100
-#define DCCPF_INITIAL_CCID 2
#define DCCPF_INITIAL_ACK_RATIO 2
+
+#if defined(CONFIG_IP_DCCP_CCID2) || defined(CONFIG_IP_DCCP_CCID2_MODULE)
+#define DCCPF_INITIAL_CCID 2
#define DCCPF_INITIAL_SEND_ACK_VECTOR 1
+#elif defined(CONFIG_IP_DCCP_CCID3) || defined(CONFIG_IP_DCCP_CCID3_MODULE)
+#define DCCPF_INITIAL_CCID 3
+#define DCCPF_INITIAL_SEND_ACK_VECTOR 0
+#else
+#error "At least one CCID must be built as the default"
+#endif
+
/* FIXME: for now we're default to 1 but it should really be 0 */
#define DCCPF_INITIAL_SEND_NDP_COUNT 1