netfilter: ipset: set type support with multiple revisions added

A set type may have multiple revisions, for example when syntax is
extended. Support continuous revision ranges in set types.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index 710ba00..ac31e38 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -282,8 +282,8 @@
 	u8 dimension;
 	/* Supported family: may be AF_UNSPEC for both AF_INET/AF_INET6 */
 	u8 family;
-	/* Type revision */
-	u8 revision;
+	/* Type revisions */
+	u8 revision_min, revision_max;
 
 	/* Create set */
 	int (*create)(struct ip_set *set, struct nlattr *tb[], u32 flags);
@@ -314,6 +314,8 @@
 	const struct ip_set_type_variant *variant;
 	/* The actual INET family of the set */
 	u8 family;
+	/* The type revision */
+	u8 revision;
 	/* The type specific data */
 	void *data;
 };