1039 	(d)->bd_hbuf = (d)->bd_sbuf; \
1104 	while (d->bd_hbuf == 0) {  in bpfread()
1158 			if (d->bd_hbuf != NULL) {  in bpfread()
1192 			if (d->bd_hbuf) {  in bpfread()
1221 	hbuf = d->bd_hbuf;  in bpfread()
1323 	d->bd_fbuf = d->bd_hbuf;  in bpfread()
1324 	d->bd_hbuf = NULL;  in bpfread()
1518 	if (d->bd_hbuf) {  in reset_d()
1520 		d->bd_fbuf = d->bd_hbuf;  in reset_d()
1521 		d->bd_hbuf = NULL;  in reset_d()
1651 	ASSERT(d_to->bd_hbuf == NULL);  in bpf_setup()
1662 	if (d_from->bd_hbuf != NULL) {  in bpf_setup()
1663 		d_to->bd_hbuf = d_to->bd_fbuf;  in bpf_setup()
1665 		memcpy(d_to->bd_hbuf, d_from->bd_hbuf, d_from->bd_hlen);  in bpf_setup()
1843 		if (d->bd_hbuf && d->bd_hbuf_read == 0) {  in bpfioctl()
3673 			d->bd_fbuf = d->bd_hbuf;  in catchpacket()
3863 	if (d->bd_hbuf != NULL) {  in bpf_freebufs()
3864 		kfree_data_addr(d->bd_hbuf);  in bpf_freebufs()