[NETFILTER]: Replace sk_buff ** with sk_buff *

With all the users of the double pointers removed, this patch mops up by
finally replacing all occurances of sk_buff ** in the netfilter API by
sk_buff *.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netfilter/xt_NOTRACK.c b/net/netfilter/xt_NOTRACK.c
index fec1aef..4976ce1 100644
--- a/net/netfilter/xt_NOTRACK.c
+++ b/net/netfilter/xt_NOTRACK.c
@@ -12,7 +12,7 @@
 MODULE_ALIAS("ip6t_NOTRACK");
 
 static unsigned int
-target(struct sk_buff **pskb,
+target(struct sk_buff *skb,
        const struct net_device *in,
        const struct net_device *out,
        unsigned int hooknum,
@@ -20,16 +20,16 @@
        const void *targinfo)
 {
 	/* Previously seen (loopback)? Ignore. */
-	if ((*pskb)->nfct != NULL)
+	if (skb->nfct != NULL)
 		return XT_CONTINUE;
 
 	/* Attach fake conntrack entry.
 	   If there is a real ct entry correspondig to this packet,
 	   it'll hang aroun till timing out. We don't deal with it
 	   for performance reasons. JK */
-	(*pskb)->nfct = &nf_conntrack_untracked.ct_general;
-	(*pskb)->nfctinfo = IP_CT_NEW;
-	nf_conntrack_get((*pskb)->nfct);
+	skb->nfct = &nf_conntrack_untracked.ct_general;
+	skb->nfctinfo = IP_CT_NEW;
+	nf_conntrack_get(skb->nfct);
 
 	return XT_CONTINUE;
 }