netfilter: xt_osf: simplify xt_osf_match_packet()

static bool

xt_osf_match_packet(const struct sk_buff *skb, struct xt_action_param *p)

{

	const struct xt_osf_info *info = p->matchinfo;

	struct net *net = xt_net(p);

	if (!info)

		return false;

	return nf_osf_match(skb, xt_family(p), xt_hooknum(p), xt_in(p),

			    xt_out(p), info, net, nf_osf_fingers);

			    xt_out(p), p->matchinfo, xt_net(p), nf_osf_fingers);

}

static struct xt_match xt_osf_match = {