pmc->sfcount[MCAST_EXCLUDE] = 0;
pmc->sfcount[MCAST_INCLUDE] = 0;
static void ip_mc_clear_src(struct ip_mc_list *pmc){	struct ip_sf_list *psf, *nextpsf;	for (psf=pmc->tomb; psf; psf=nextpsf) {		nextpsf = psf->sf_next;		kfree(psf);	}	pmc->tomb = NULL;	for (psf=pmc->sources; psf; psf=nextpsf) {		nextpsf = psf->sf_next;		kfree(psf);	}	pmc->sources = NULL;	pmc->sfmode = MCAST_EXCLUDE;	pmc->sfcount[MCAST_EXCLUDE] = 0;	pmc->sfcount[MCAST_EXCLUDE] = 1;}