1041 	(d)->bd_hbuf = (d)->bd_sbuf; \
1106 	while (d->bd_hbuf == 0) {  in bpfread()
1160 			if (d->bd_hbuf != NULL) {  in bpfread()
1194 			if (d->bd_hbuf) {  in bpfread()
1223 	hbuf = d->bd_hbuf;  in bpfread()
1325 	d->bd_fbuf = d->bd_hbuf;  in bpfread()
1326 	d->bd_hbuf = NULL;  in bpfread()
1528 	if (d->bd_hbuf) {  in reset_d()
1530 		d->bd_fbuf = d->bd_hbuf;  in reset_d()
1531 		d->bd_hbuf = NULL;  in reset_d()
1661 	ASSERT(d_to->bd_hbuf == NULL);  in bpf_setup()
1672 	if (d_from->bd_hbuf != NULL) {  in bpf_setup()
1673 		d_to->bd_hbuf = d_to->bd_fbuf;  in bpf_setup()
1675 		memcpy(d_to->bd_hbuf, d_from->bd_hbuf, d_from->bd_hlen);  in bpf_setup()
1853 		if (d->bd_hbuf && d->bd_hbuf_read == 0) {  in bpfioctl()
3683 			d->bd_fbuf = d->bd_hbuf;  in catchpacket()
3873 	if (d->bd_hbuf != NULL) {  in bpf_freebufs()
3874 		kfree_data_addr(d->bd_hbuf);  in bpf_freebufs()