if ((*pskb)->nfct && !is_confirmed((struct ip_conntrack *)(*pskb)->nfct)) return __ip_conntrack_confirm(pskb); return NF_ACCEPT; 
struct ip_conntrack *ct = (struct ip_conntrack *)(*pskb)->nfct; int ret = NF_ACCEPT;  if (ct && !is_confirmed(ct)) ret = __ip_conntrack_confirm(pskb); ip_conntrack_deliver_cached_events_for(ct);  return ret; 
static inline int ip_conntrack_confirm(struct sk_buff **pskb){	if ((*pskb)->nfct	    && !is_confirmed((struct ip_conntrack *)(*pskb)->nfct))		return __ip_conntrack_confirm(pskb);	return NF_ACCEPT;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/ac3247baf8ecadf168642e3898b0212c29c79715/ip_conntrack_core.h/buggy/include/linux/netfilter_ipv4/ip_conntrack_core.h