diff --git a/include/linux/in6.h b/include/linux/in6.h
index c11022f..bd32b79 100644
--- a/include/linux/in6.h
+++ b/include/linux/in6.h
@@ -219,9 +219,7 @@
 #define IPV6_DSTOPTS		63
 #define IPV6_RECVHOPLIMIT	64
 #define IPV6_HOPLIMIT		65
-#if 0
 #define IPV6_RECVTCLASS		66
 #define IPV6_TCLASS		67
-#endif
 
 #endif
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 2581f1c..6c5f7b3 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -245,7 +245,8 @@
 				ohopopts:1,
 				dstopts:1,
 				odstopts:1,
-                                rxflow:1;
+                                rxflow:1,
+				rxtclass:1;
 		} bits;
 		__u16		all;
 	} rxopt;
@@ -256,6 +257,7 @@
 	                        sndflow:1,
 				pmtudisc:2,
 				ipv6only:1;
+	__u8			tclass;
 
 	__u32			dst_cookie;
 
@@ -269,6 +271,7 @@
 		struct ipv6_txoptions *opt;
 		struct rt6_info	*rt;
 		int hop_limit;
+		int tclass;
 	} cork;
 };
 
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 8a9fe94..65ec866 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -377,6 +377,7 @@
 						int length,
 						int transhdrlen,
 		      				int hlimit,
+		      				int tclass,
 						struct ipv6_txoptions *opt,
 						struct flowi *fl,
 						struct rt6_info *rt,
diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index 8b075ab..4e86f2d 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -37,7 +37,7 @@
 extern int			datagram_send_ctl(struct msghdr *msg,
 						  struct flowi *fl,
 						  struct ipv6_txoptions *opt,
-						  int *hlimit);
+						  int *hlimit, int *tclass);
 
 #define		LOOPBACK4_IPV6		__constant_htonl(0x7f000006)