netfilter: nfnetlink_acct: remove useless parameter

parameter skb in nfnl_acct_overquota is not used anywhere.
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

include/linux/netfilter/nfnetlink_acct.h

@@ -16,6 +16,5 @@ struct nf_acct;
 struct nf_acct *nfnl_acct_find_get(struct net *net, const char *filter_name);
 void nfnl_acct_put(struct nf_acct *acct);
 void nfnl_acct_update(const struct sk_buff *skb, struct nf_acct *nfacct);
-int nfnl_acct_overquota(struct net *net, const struct sk_buff *skb,
-			struct nf_acct *nfacct);
+int nfnl_acct_overquota(struct net *net, struct nf_acct *nfacct);
 #endif /* _NFNL_ACCT_H */

net/netfilter/nfnetlink_acct.c

@@ -467,8 +467,7 @@ static void nfnl_overquota_report(struct net *net, struct nf_acct *nfacct)
 			  GFP_ATOMIC);
 }
 
-int nfnl_acct_overquota(struct net *net, const struct sk_buff *skb,
-			struct nf_acct *nfacct)
+int nfnl_acct_overquota(struct net *net, struct nf_acct *nfacct)
 {
 	u64 now;
 	u64 *quota;

net/netfilter/xt_nfacct.c

@@ -28,7 +28,7 @@ static bool nfacct_mt(const struct sk_buff *skb, struct xt_action_param *par)
 
 	nfnl_acct_update(skb, info->nfacct);
 
-	overquota = nfnl_acct_overquota(xt_net(par), skb, info->nfacct);
+	overquota = nfnl_acct_overquota(xt_net(par), info->nfacct);
 
 	return overquota == NFACCT_UNDERQUOTA ? false : true;
 }