+
+#ifdef CONFIG_IP_DCCP_DEBUG
+const char *dccp_feat_typename(const u8 type)
+{
+ switch(type) {
+ case DCCPO_CHANGE_L: return("ChangeL");
+ case DCCPO_CONFIRM_L: return("ConfirmL");
+ case DCCPO_CHANGE_R: return("ChangeR");
+ case DCCPO_CONFIRM_R: return("ConfirmR");
+ /* the following case must not appear in feature negotation */
+ default: dccp_pr_debug("unknown type %d [BUG!]\n", type);
+ }
+ return NULL;
+}
+
+EXPORT_SYMBOL_GPL(dccp_feat_typename);
+
+const char *dccp_feat_name(const u8 feat)
+{
+ static const char *feature_names[] = {
+ [DCCPF_RESERVED] = "Reserved",
+ [DCCPF_CCID] = "CCID",
+ [DCCPF_SHORT_SEQNOS] = "Allow Short Seqnos",
+ [DCCPF_SEQUENCE_WINDOW] = "Sequence Window",
+ [DCCPF_ECN_INCAPABLE] = "ECN Incapable",
+ [DCCPF_ACK_RATIO] = "Ack Ratio",
+ [DCCPF_SEND_ACK_VECTOR] = "Send ACK Vector",
+ [DCCPF_SEND_NDP_COUNT] = "Send NDP Count",
+ [DCCPF_MIN_CSUM_COVER] = "Min. Csum Coverage",
+ [DCCPF_DATA_CHECKSUM] = "Send Data Checksum",
+ };
+ if (feat >= DCCPF_MIN_CCID_SPECIFIC)
+ return "CCID-specific";
+
+ if (dccp_feat_is_reserved(feat))
+ return feature_names[DCCPF_RESERVED];
+
+ return feature_names[feat];
+}
+
+EXPORT_SYMBOL_GPL(dccp_feat_name);
+#endif /* CONFIG_IP_DCCP_DEBUG */