1251 	(d)->bd_hbuf = (d)->bd_sbuf; \
1316 	while (d->bd_hbuf == 0) {  in bpfread()
1370 			if (d->bd_hbuf != NULL) {  in bpfread()
1404 			if (d->bd_hbuf) {  in bpfread()
1433 	hbuf = d->bd_hbuf;  in bpfread()
1536 	d->bd_fbuf = d->bd_hbuf;  in bpfread()
1537 	d->bd_hbuf = NULL;  in bpfread()
1747 	if (d->bd_hbuf) {  in reset_d()
1749 		d->bd_fbuf = d->bd_hbuf;  in reset_d()
1750 		d->bd_hbuf = NULL;  in reset_d()
1882 	ASSERT(d_to->bd_hbuf == NULL);  in bpf_setup()
1893 	if (d_from->bd_hbuf != NULL) {  in bpf_setup()
1894 		d_to->bd_hbuf = d_to->bd_fbuf;  in bpf_setup()
1896 		memcpy(d_to->bd_hbuf, d_from->bd_hbuf, d_from->bd_hlen);  in bpf_setup()
2082 		if (d->bd_hbuf && d->bd_hbuf_read) {  in bpfioctl()
4084 			d->bd_fbuf = d->bd_hbuf;  in catchpacket()
4277 	if (d->bd_hbuf != NULL) {  in bpf_freebufs()
4278 		kfree_data_addr(d->bd_hbuf);  in bpf_freebufs()