[NETFILTER]: x_tables: consistent and unique symbol names

Give all Netfilter modules consistent and unique symbol names.

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netfilter/xt_length.c b/net/netfilter/xt_length.c
index 3dad173..ea54578 100644
--- a/net/netfilter/xt_length.c
+++ b/net/netfilter/xt_length.c
@@ -21,14 +21,10 @@
 MODULE_ALIAS("ip6t_length");
 
 static bool
-match(const struct sk_buff *skb,
-      const struct net_device *in,
-      const struct net_device *out,
-      const struct xt_match *match,
-      const void *matchinfo,
-      int offset,
-      unsigned int protoff,
-      bool *hotdrop)
+length_mt(const struct sk_buff *skb, const struct net_device *in,
+          const struct net_device *out, const struct xt_match *match,
+          const void *matchinfo, int offset, unsigned int protoff,
+          bool *hotdrop)
 {
 	const struct xt_length_info *info = matchinfo;
 	u_int16_t pktlen = ntohs(ip_hdr(skb)->tot_len);
@@ -37,14 +33,10 @@
 }
 
 static bool
-match6(const struct sk_buff *skb,
-       const struct net_device *in,
-       const struct net_device *out,
-       const struct xt_match *match,
-       const void *matchinfo,
-       int offset,
-       unsigned int protoff,
-       bool *hotdrop)
+length_mt6(const struct sk_buff *skb, const struct net_device *in,
+           const struct net_device *out, const struct xt_match *match,
+           const void *matchinfo, int offset, unsigned int protoff,
+           bool *hotdrop)
 {
 	const struct xt_length_info *info = matchinfo;
 	const u_int16_t pktlen = ntohs(ipv6_hdr(skb)->payload_len) +
@@ -53,33 +45,32 @@
 	return (pktlen >= info->min && pktlen <= info->max) ^ info->invert;
 }
 
-static struct xt_match xt_length_match[] __read_mostly = {
+static struct xt_match length_mt_reg[] __read_mostly = {
 	{
 		.name		= "length",
 		.family		= AF_INET,
-		.match		= match,
+		.match		= length_mt,
 		.matchsize	= sizeof(struct xt_length_info),
 		.me		= THIS_MODULE,
 	},
 	{
 		.name		= "length",
 		.family		= AF_INET6,
-		.match		= match6,
+		.match		= length_mt6,
 		.matchsize	= sizeof(struct xt_length_info),
 		.me		= THIS_MODULE,
 	},
 };
 
-static int __init xt_length_init(void)
+static int __init length_mt_init(void)
 {
-	return xt_register_matches(xt_length_match,
-				   ARRAY_SIZE(xt_length_match));
+	return xt_register_matches(length_mt_reg, ARRAY_SIZE(length_mt_reg));
 }
 
-static void __exit xt_length_fini(void)
+static void __exit length_mt_exit(void)
 {
-	xt_unregister_matches(xt_length_match, ARRAY_SIZE(xt_length_match));
+	xt_unregister_matches(length_mt_reg, ARRAY_SIZE(length_mt_reg));
 }
 
-module_init(xt_length_init);
-module_exit(xt_length_fini);
+module_init(length_mt_init);
+module_exit(length_mt_exit);