[NETFILTER]: x_tables: remove some unnecessary casts

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/netfilter/ipt_hashlimit.c

@@ -561,7 +561,7 @@ static void
 hashlimit_destroy(const struct xt_match *match, void *matchinfo,
 		  unsigned int matchsize)
 {
-	struct ipt_hashlimit_info *r = (struct ipt_hashlimit_info *) matchinfo;
+	struct ipt_hashlimit_info *r = matchinfo;
 
 	htable_put(r->hinfo);
 }

net/netfilter/xt_connmark.c

@@ -58,7 +58,7 @@ checkentry(const char *tablename,
 	   unsigned int matchsize,
 	   unsigned int hook_mask)
 {
-	struct xt_connmark_info *cm = (struct xt_connmark_info *)matchinfo;
+	struct xt_connmark_info *cm = matchinfo;
 
 	if (cm->mark > 0xffffffff || cm->mask > 0xffffffff) {
 		printk(KERN_WARNING "connmark: only support 32bit mark\n");

net/netfilter/xt_dccp.c

@@ -101,8 +101,7 @@ match(const struct sk_buff *skb,
       unsigned int protoff,
       int *hotdrop)
 {
-	const struct xt_dccp_info *info = 
-				(const struct xt_dccp_info *)matchinfo;
+	const struct xt_dccp_info *info = matchinfo;
 	struct dccp_hdr _dh, *dh;
 
 	if (offset)

net/netfilter/xt_mark.c

@@ -42,7 +42,7 @@ checkentry(const char *tablename,
            unsigned int matchsize,
            unsigned int hook_mask)
 {
-	struct xt_mark_info *minfo = (struct xt_mark_info *) matchinfo;
+	const struct xt_mark_info *minfo = matchinfo;
 
 	if (minfo->mark > 0xffffffff || minfo->mask > 0xffffffff) {
 		printk(KERN_WARNING "mark: only supports 32bit mark\n");

net/netfilter/xt_sctp.c

@@ -129,11 +129,9 @@ match(const struct sk_buff *skb,
       unsigned int protoff,
       int *hotdrop)
 {
-	const struct xt_sctp_info *info;
+	const struct xt_sctp_info *info = matchinfo;
 	sctp_sctphdr_t _sh, *sh;
 
-	info = (const struct xt_sctp_info *)matchinfo;
-
 	if (offset) {
 		duprintf("Dropping non-first fragment.. FIXME\n");
 		return 0;

net/netfilter/xt_string.c

@@ -30,8 +30,8 @@ static int match(const struct sk_buff *skb,
 		 unsigned int protoff,
 		 int *hotdrop)
 {
+	const struct xt_string_info *conf = matchinfo;
 	struct ts_state state;
-	struct xt_string_info *conf = (struct xt_string_info *) matchinfo;
 
 	memset(&state, 0, sizeof(struct ts_state));