diff --git a/doc/changelog.txt b/doc/changelog.txt
index 230d8b0..df7034b 100644
--- a/doc/changelog.txt
+++ b/doc/changelog.txt
@@ -2,7 +2,7 @@
 HEAD
 ====
 Changes:
-- remove support for Linux 2.6.17--2.6.29
+- remove support for Linux 2.6.17--2.6.30
 
 
 v1.47.1 (2010-10-15)
diff --git a/extensions/compat_skbuff.h b/extensions/compat_skbuff.h
index 6453cdf..b1e31b6 100644
--- a/extensions/compat_skbuff.h
+++ b/extensions/compat_skbuff.h
@@ -4,23 +4,6 @@
 struct tcphdr;
 struct udphdr;
 
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 30)
-static inline void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst)
-{
-	skb->dst = dst;
-}
-
-static inline struct dst_entry *skb_dst(const struct sk_buff *skb)
-{
-	return skb->dst;
-}
-
-static inline struct rtable *skb_rtable(const struct sk_buff *skb)
-{
-	return (void *)skb->dst;
-}
-#endif
-
 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 32)
 #	define skb_ifindex(skb) (skb)->iif
 #	define skb_nfmark(skb) (((struct sk_buff *)(skb))->mark)
diff --git a/extensions/compat_xtables.c b/extensions/compat_xtables.c
index e766b52..7adff99 100644
--- a/extensions/compat_xtables.c
+++ b/extensions/compat_xtables.c
@@ -30,7 +30,7 @@
 #	define WITH_IPV6 1
 #endif
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 30) && \
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31) && \
     LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 34)
 static bool xtnu_match_run(const struct sk_buff *skb,
     const struct xt_match_param *par)
@@ -56,7 +56,7 @@ static bool xtnu_match_run(const struct sk_buff *skb,
 }
 #endif
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 30) && \
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31) && \
     LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 34)
 static bool xtnu_match_check(const struct xt_mtchk_param *par)
 {
@@ -146,7 +146,7 @@ void xtnu_unregister_matches(struct xtnu_match *nt, unsigned int num)
 EXPORT_SYMBOL_GPL(xtnu_unregister_matches);
 #endif
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 30) && \
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31) && \
     LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 34)
 static unsigned int
 xtnu_target_run(struct sk_buff *skb, const struct xt_target_param *par)
@@ -174,7 +174,7 @@ xtnu_target_run(struct sk_buff *skb, const struct xt_action_param *par)
 }
 #endif
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 30) && \
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31) && \
     LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 34)
 static bool xtnu_target_check(const struct xt_tgchk_param *par)
 {
diff --git a/extensions/compat_xtables.h b/extensions/compat_xtables.h
index 6faaa91..6bb6182 100644
--- a/extensions/compat_xtables.h
+++ b/extensions/compat_xtables.h
@@ -8,8 +8,8 @@
 
 #define DEBUGP Use__pr_debug__instead
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 30)
-#	warning Kernels below 2.6.30 not supported.
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31)
+#	warning Kernels below 2.6.31 not supported.
 #endif
 
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)