rem: *nfcache |= NFC_UNKNOWN;
context: init(struct ipt_entry_match *m, unsigned int *nfcache){	struct ipt_rateinfo *r = (struct ipt_rateinfo *)m->data;	parse_rate(IPT_LIMIT_AVG, &r->avg);	r->burst = IPT_LIMIT_BURST;	/* Can't cache this */	*nfcache |= NFC_UNKNOWN;}