161 	struct isotp_sock *so = container_of(hrtimer, struct isotp_sock,  in isotp_rx_timer_handler()  local
163 	struct sock *sk = &so->sk;  in isotp_rx_timer_handler()
165 	if (so->rx.state == ISOTP_WAIT_DATA) {  in isotp_rx_timer_handler()
174 		so->rx.state = ISOTP_IDLE;  in isotp_rx_timer_handler()
185 	struct isotp_sock *so = isotp_sk(sk);  in isotp_send_fc()  local
188 	nskb = alloc_skb(so->ll.mtu + sizeof(struct can_skb_priv), gfp_any());  in isotp_send_fc()
192 	dev = dev_get_by_index(sock_net(sk), so->ifindex);  in isotp_send_fc()
205 	skb_put_zero(nskb, so->ll.mtu);  in isotp_send_fc()
208 	ncf->can_id = so->txid;  in isotp_send_fc()
210 	if (so->opt.flags & CAN_ISOTP_TX_PADDING) {  in isotp_send_fc()
211 		memset(ncf->data, so->opt.txpad_content, CAN_MAX_DLEN);  in isotp_send_fc()
218 	ncf->data[ae + 1] = so->rxfc.bs;  in isotp_send_fc()
219 	ncf->data[ae + 2] = so->rxfc.stmin;  in isotp_send_fc()
222 		ncf->data[0] = so->opt.ext_address;  in isotp_send_fc()
224 	ncf->flags = so->ll.tx_flags;  in isotp_send_fc()
234 	so->rx.bs = 0;  in isotp_send_fc()
237 	so->lastrxcf_tstamp = ktime_set(0, 0);  in isotp_send_fc()
240 	hrtimer_start(&so->rxtimer, ktime_set(1, 0), HRTIMER_MODE_REL_SOFT);  in isotp_send_fc()
298 static int check_pad(struct isotp_sock *so, struct canfd_frame *cf,  in check_pad()  argument
304 	if (!(so->opt.flags & CAN_ISOTP_RX_PADDING)) {  in check_pad()
305 		if (so->opt.flags & CAN_ISOTP_CHK_PAD_LEN)  in check_pad()
313 	if ((so->opt.flags & CAN_ISOTP_CHK_PAD_LEN) &&  in check_pad()
318 	if (so->opt.flags & CAN_ISOTP_CHK_PAD_DATA) {  in check_pad()
326 static int isotp_rcv_fc(struct isotp_sock *so, struct canfd_frame *cf, int ae)  in isotp_rcv_fc()  argument
328 	struct sock *sk = &so->sk;  in isotp_rcv_fc()
330 	if (so->tx.state != ISOTP_WAIT_FC &&  in isotp_rcv_fc()
331 	    so->tx.state != ISOTP_WAIT_FIRST_FC)  in isotp_rcv_fc()
334 	hrtimer_cancel(&so->txtimer);  in isotp_rcv_fc()
337 	    ((so->opt.flags & ISOTP_CHECK_PADDING) &&  in isotp_rcv_fc()
338 	     check_pad(so, cf, ae + FC_CONTENT_SZ, so->opt.rxpad_content))) {  in isotp_rcv_fc()
344 		so->tx.state = ISOTP_IDLE;  in isotp_rcv_fc()
345 		wake_up_interruptible(&so->wait);  in isotp_rcv_fc()
350 	if (so->tx.state == ISOTP_WAIT_FIRST_FC) {  in isotp_rcv_fc()
351 		so->txfc.bs = cf->data[ae + 1];  in isotp_rcv_fc()
352 		so->txfc.stmin = cf->data[ae + 2];  in isotp_rcv_fc()
355 		if (so->txfc.stmin > 0x7F &&  in isotp_rcv_fc()
356 		    (so->txfc.stmin < 0xF1 || so->txfc.stmin > 0xF9))  in isotp_rcv_fc()
357 			so->txfc.stmin = 0x7F;  in isotp_rcv_fc()
359 		so->tx_gap = ktime_set(0, 0);  in isotp_rcv_fc()
361 		so->tx_gap = ktime_add_ns(so->tx_gap, so->opt.frame_txtime);  in isotp_rcv_fc()
363 		if (so->opt.flags & CAN_ISOTP_FORCE_TXSTMIN)  in isotp_rcv_fc()
364 			so->tx_gap = ktime_add_ns(so->tx_gap,  in isotp_rcv_fc()
365 						  so->force_tx_stmin);  in isotp_rcv_fc()
366 		else if (so->txfc.stmin < 0x80)  in isotp_rcv_fc()
367 			so->tx_gap = ktime_add_ns(so->tx_gap,  in isotp_rcv_fc()
368 						  so->txfc.stmin * 1000000);  in isotp_rcv_fc()
370 			so->tx_gap = ktime_add_ns(so->tx_gap,  in isotp_rcv_fc()
371 						  (so->txfc.stmin - 0xF0)  in isotp_rcv_fc()
373 		so->tx.state = ISOTP_WAIT_FC;  in isotp_rcv_fc()
378 		so->tx.bs = 0;  in isotp_rcv_fc()
379 		so->tx.state = ISOTP_SENDING;  in isotp_rcv_fc()
381 		hrtimer_start(&so->txtimer, so->tx_gap,  in isotp_rcv_fc()
387 		hrtimer_start(&so->txtimer, ktime_set(1, 0),  in isotp_rcv_fc()
400 		so->tx.state = ISOTP_IDLE;  in isotp_rcv_fc()
401 		wake_up_interruptible(&so->wait);  in isotp_rcv_fc()
409 	struct isotp_sock *so = isotp_sk(sk);  in isotp_rcv_sf()  local
412 	hrtimer_cancel(&so->rxtimer);  in isotp_rcv_sf()
413 	so->rx.state = ISOTP_IDLE;  in isotp_rcv_sf()
418 	if ((so->opt.flags & ISOTP_CHECK_PADDING) &&  in isotp_rcv_sf()
419 	    check_pad(so, cf, pcilen + len, so->opt.rxpad_content)) {  in isotp_rcv_sf()
441 	struct isotp_sock *so = isotp_sk(sk);  in isotp_rcv_ff()  local
446 	hrtimer_cancel(&so->rxtimer);  in isotp_rcv_ff()
447 	so->rx.state = ISOTP_IDLE;  in isotp_rcv_ff()
450 	so->rx.ll_dl = padlen(cf->len);  in isotp_rcv_ff()
453 	if (cf->len != so->rx.ll_dl)  in isotp_rcv_ff()
457 	so->rx.len = (cf->data[ae] & 0x0F) << 8;  in isotp_rcv_ff()
458 	so->rx.len += cf->data[ae + 1];  in isotp_rcv_ff()
461 	if (so->rx.len) {  in isotp_rcv_ff()
465 		so->rx.len = cf->data[ae + 2] << 24;  in isotp_rcv_ff()
466 		so->rx.len += cf->data[ae + 3] << 16;  in isotp_rcv_ff()
467 		so->rx.len += cf->data[ae + 4] << 8;  in isotp_rcv_ff()
468 		so->rx.len += cf->data[ae + 5];  in isotp_rcv_ff()
473 	off = (so->rx.ll_dl > CAN_MAX_DLEN) ? 1 : 0;  in isotp_rcv_ff()
475 	if (so->rx.len + ae + off + ff_pci_sz < so->rx.ll_dl)  in isotp_rcv_ff()
478 	if (so->rx.len > MAX_MSG_LENGTH) {  in isotp_rcv_ff()
485 	so->rx.idx = 0;  in isotp_rcv_ff()
486 	for (i = ae + ff_pci_sz; i < so->rx.ll_dl; i++)  in isotp_rcv_ff()
487 		so->rx.buf[so->rx.idx++] = cf->data[i];  in isotp_rcv_ff()
490 	so->rx.sn = 1;  in isotp_rcv_ff()
491 	so->rx.state = ISOTP_WAIT_DATA;  in isotp_rcv_ff()
494 	if (so->opt.flags & CAN_ISOTP_LISTEN_MODE)  in isotp_rcv_ff()
505 	struct isotp_sock *so = isotp_sk(sk);  in isotp_rcv_cf()  local
509 	if (so->rx.state != ISOTP_WAIT_DATA)  in isotp_rcv_cf()
513 	if (so->opt.flags & CAN_ISOTP_FORCE_RXSTMIN) {  in isotp_rcv_cf()
514 		if (ktime_to_ns(ktime_sub(skb->tstamp, so->lastrxcf_tstamp)) <  in isotp_rcv_cf()
515 		    so->force_rx_stmin)  in isotp_rcv_cf()
518 		so->lastrxcf_tstamp = skb->tstamp;  in isotp_rcv_cf()
521 	hrtimer_cancel(&so->rxtimer);  in isotp_rcv_cf()
524 	if (cf->len > so->rx.ll_dl)  in isotp_rcv_cf()
528 	if (cf->len < so->rx.ll_dl) {  in isotp_rcv_cf()
530 		if (so->rx.len - so->rx.idx > so->rx.ll_dl - ae - N_PCI_SZ)  in isotp_rcv_cf()
534 	if ((cf->data[ae] & 0x0F) != so->rx.sn) {  in isotp_rcv_cf()
541 		so->rx.state = ISOTP_IDLE;  in isotp_rcv_cf()
544 	so->rx.sn++;  in isotp_rcv_cf()
545 	so->rx.sn %= 16;  in isotp_rcv_cf()
548 		so->rx.buf[so->rx.idx++] = cf->data[i];  in isotp_rcv_cf()
549 		if (so->rx.idx >= so->rx.len)  in isotp_rcv_cf()
553 	if (so->rx.idx >= so->rx.len) {  in isotp_rcv_cf()
555 		so->rx.state = ISOTP_IDLE;  in isotp_rcv_cf()
557 		if ((so->opt.flags & ISOTP_CHECK_PADDING) &&  in isotp_rcv_cf()
558 		    check_pad(so, cf, i + 1, so->opt.rxpad_content)) {  in isotp_rcv_cf()
566 		nskb = alloc_skb(so->rx.len, gfp_any());  in isotp_rcv_cf()
570 		memcpy(skb_put(nskb, so->rx.len), so->rx.buf,  in isotp_rcv_cf()
571 		       so->rx.len);  in isotp_rcv_cf()
580 	if (!so->rxfc.bs || ++so->rx.bs < so->rxfc.bs) {  in isotp_rcv_cf()
582 		hrtimer_start(&so->rxtimer, ktime_set(1, 0),  in isotp_rcv_cf()
588 	if (so->opt.flags & CAN_ISOTP_LISTEN_MODE)  in isotp_rcv_cf()
591 	/* we reached the specified blocksize so->rxfc.bs */  in isotp_rcv_cf()
599 	struct isotp_sock *so = isotp_sk(sk);  in isotp_rcv()  local
601 	int ae = (so->opt.flags & CAN_ISOTP_EXTEND_ADDR) ? 1 : 0;  in isotp_rcv()
607 	if (skb->len != so->ll.mtu)  in isotp_rcv()
613 	if (ae && cf->data[0] != so->opt.rx_ext_address)  in isotp_rcv()
618 	if (so->opt.flags & CAN_ISOTP_HALF_DUPLEX) {  in isotp_rcv()
620 		if ((so->tx.state != ISOTP_IDLE && n_pci_type != N_PCI_FC) ||  in isotp_rcv()
621 		    (so->rx.state != ISOTP_IDLE && n_pci_type == N_PCI_FC))  in isotp_rcv()
628 		isotp_rcv_fc(so, cf, ae);  in isotp_rcv()
649 				 * If so take care of the increased SF PCI size  in isotp_rcv()
673 static void isotp_fill_dataframe(struct canfd_frame *cf, struct isotp_sock *so,  in isotp_fill_dataframe()  argument
677 	int space = so->tx.ll_dl - pcilen;  in isotp_fill_dataframe()
678 	int num = min_t(int, so->tx.len - so->tx.idx, space);  in isotp_fill_dataframe()
681 	cf->can_id = so->txid;  in isotp_fill_dataframe()
685 		if (so->opt.flags & CAN_ISOTP_TX_PADDING) {  in isotp_fill_dataframe()
688 			memset(cf->data, so->opt.txpad_content, cf->len);  in isotp_fill_dataframe()
698 		cf->data[pcilen + i] = so->tx.buf[so->tx.idx++];  in isotp_fill_dataframe()
701 		cf->data[0] = so->opt.ext_address;  in isotp_fill_dataframe()
704 static void isotp_create_fframe(struct canfd_frame *cf, struct isotp_sock *so,  in isotp_create_fframe()  argument
710 	cf->can_id = so->txid;  in isotp_create_fframe()
711 	cf->len = so->tx.ll_dl;  in isotp_create_fframe()
713 		cf->data[0] = so->opt.ext_address;  in isotp_create_fframe()
716 	if (so->tx.len > 4095) {  in isotp_create_fframe()
720 		cf->data[ae + 2] = (u8)(so->tx.len >> 24) & 0xFFU;  in isotp_create_fframe()
721 		cf->data[ae + 3] = (u8)(so->tx.len >> 16) & 0xFFU;  in isotp_create_fframe()
722 		cf->data[ae + 4] = (u8)(so->tx.len >> 8) & 0xFFU;  in isotp_create_fframe()
723 		cf->data[ae + 5] = (u8)so->tx.len & 0xFFU;  in isotp_create_fframe()
727 		cf->data[ae] = (u8)(so->tx.len >> 8) | N_PCI_FF;  in isotp_create_fframe()
728 		cf->data[ae + 1] = (u8)so->tx.len & 0xFFU;  in isotp_create_fframe()
733 	for (i = ae + ff_pci_sz; i < so->tx.ll_dl; i++)  in isotp_create_fframe()
734 		cf->data[i] = so->tx.buf[so->tx.idx++];  in isotp_create_fframe()
736 	so->tx.sn = 1;  in isotp_create_fframe()
737 	so->tx.state = ISOTP_WAIT_FIRST_FC;  in isotp_create_fframe()
742 	struct isotp_sock *so = container_of(hrtimer, struct isotp_sock,  in isotp_tx_timer_handler()  local
744 	struct sock *sk = &so->sk;  in isotp_tx_timer_handler()
750 	int ae = (so->opt.flags & CAN_ISOTP_EXTEND_ADDR) ? 1 : 0;  in isotp_tx_timer_handler()
752 	switch (so->tx.state) {  in isotp_tx_timer_handler()
764 		so->tx.state = ISOTP_IDLE;  in isotp_tx_timer_handler()
765 		wake_up_interruptible(&so->wait);  in isotp_tx_timer_handler()
771 		dev = dev_get_by_index(sock_net(sk), so->ifindex);  in isotp_tx_timer_handler()
776 		skb = alloc_skb(so->ll.mtu + sizeof(struct can_skb_priv),  in isotp_tx_timer_handler()
788 		skb_put_zero(skb, so->ll.mtu);  in isotp_tx_timer_handler()
791 		isotp_fill_dataframe(cf, so, ae, 0);  in isotp_tx_timer_handler()
794 		cf->data[ae] = N_PCI_CF | so->tx.sn++;  in isotp_tx_timer_handler()
795 		so->tx.sn %= 16;  in isotp_tx_timer_handler()
796 		so->tx.bs++;  in isotp_tx_timer_handler()
798 		cf->flags = so->ll.tx_flags;  in isotp_tx_timer_handler()
810 		if (so->tx.idx >= so->tx.len) {  in isotp_tx_timer_handler()
812 			so->tx.state = ISOTP_IDLE;  in isotp_tx_timer_handler()
814 			wake_up_interruptible(&so->wait);  in isotp_tx_timer_handler()
818 		if (so->txfc.bs && so->tx.bs >= so->txfc.bs) {  in isotp_tx_timer_handler()
820 			so->tx.state = ISOTP_WAIT_FC;  in isotp_tx_timer_handler()
822 			hrtimer_set_expires(&so->txtimer,  in isotp_tx_timer_handler()
830 		if (!so->tx_gap)  in isotp_tx_timer_handler()
835 		hrtimer_set_expires(&so->txtimer,  in isotp_tx_timer_handler()
836 				    ktime_add(ktime_get(), so->tx_gap));  in isotp_tx_timer_handler()
850 	struct isotp_sock *so = isotp_sk(sk);  in isotp_sendmsg()  local
851 	u32 old_state = so->tx.state;  in isotp_sendmsg()
855 	int ae = (so->opt.flags & CAN_ISOTP_EXTEND_ADDR) ? 1 : 0;  in isotp_sendmsg()
856 	int wait_tx_done = (so->opt.flags & CAN_ISOTP_WAIT_TX_DONE) ? 1 : 0;  in isotp_sendmsg()
860 	if (!so->bound)  in isotp_sendmsg()
864 	if (cmpxchg(&so->tx.state, ISOTP_IDLE, ISOTP_SENDING) != ISOTP_IDLE ||  in isotp_sendmsg()
865 	    wq_has_sleeper(&so->wait)) {  in isotp_sendmsg()
872 		err = wait_event_interruptible(so->wait, so->tx.state == ISOTP_IDLE);  in isotp_sendmsg()
883 	off = (so->tx.ll_dl > CAN_MAX_DLEN) ? 1 : 0;  in isotp_sendmsg()
886 	if ((so->opt.flags & CAN_ISOTP_SF_BROADCAST) &&  in isotp_sendmsg()
887 	    (size > so->tx.ll_dl - SF_PCI_SZ4 - ae - off)) {  in isotp_sendmsg()
892 	err = memcpy_from_msg(so->tx.buf, msg, size);  in isotp_sendmsg()
896 	dev = dev_get_by_index(sock_net(sk), so->ifindex);  in isotp_sendmsg()
902 	skb = sock_alloc_send_skb(sk, so->ll.mtu + sizeof(struct can_skb_priv),  in isotp_sendmsg()
913 	so->tx.len = size;  in isotp_sendmsg()
914 	so->tx.idx = 0;  in isotp_sendmsg()
917 	skb_put_zero(skb, so->ll.mtu);  in isotp_sendmsg()
920 	if (size <= so->tx.ll_dl - SF_PCI_SZ4 - ae - off) {  in isotp_sendmsg()
933 		isotp_fill_dataframe(cf, so, ae, off);  in isotp_sendmsg()
944 		so->tx.state = ISOTP_IDLE;  in isotp_sendmsg()
945 		wake_up_interruptible(&so->wait);  in isotp_sendmsg()
952 		isotp_create_fframe(cf, so, ae);  in isotp_sendmsg()
955 		hrtimer_start(&so->txtimer, ktime_set(1, 0), HRTIMER_MODE_REL_SOFT);  in isotp_sendmsg()
959 	cf->flags = so->ll.tx_flags;  in isotp_sendmsg()
973 		wait_event_interruptible(so->wait, so->tx.state == ISOTP_IDLE);  in isotp_sendmsg()
982 	so->tx.state = old_state;  in isotp_sendmsg()
983 	if (so->tx.state == ISOTP_IDLE)  in isotp_sendmsg()
984 		wake_up_interruptible(&so->wait);  in isotp_sendmsg()
1031 	struct isotp_sock *so;  in isotp_release()  local
1037 	so = isotp_sk(sk);  in isotp_release()
1041 	wait_event_interruptible(so->wait, so->tx.state == ISOTP_IDLE);  in isotp_release()
1044 	while (isotp_busy_notifier == so) {  in isotp_release()
1049 	list_del(&so->notifier);  in isotp_release()
1055 	if (so->bound && (!(so->opt.flags & CAN_ISOTP_SF_BROADCAST))) {  in isotp_release()
1056 		if (so->ifindex) {  in isotp_release()
1059 			dev = dev_get_by_index(net, so->ifindex);  in isotp_release()
1061 				can_rx_unregister(net, dev, so->rxid,  in isotp_release()
1062 						  SINGLE_MASK(so->rxid),  in isotp_release()
1070 	hrtimer_cancel(&so->txtimer);  in isotp_release()
1071 	hrtimer_cancel(&so->rxtimer);  in isotp_release()
1073 	so->ifindex = 0;  in isotp_release()
1074 	so->bound = 0;  in isotp_release()
1089 	struct isotp_sock *so = isotp_sk(sk);  in isotp_bind()  local
1109 	if (so->opt.flags & CAN_ISOTP_SF_BROADCAST)  in isotp_bind()
1125 	if (so->bound && addr->can_ifindex == so->ifindex &&  in isotp_bind()
1126 	    addr->can_addr.tp.rx_id == so->rxid &&  in isotp_bind()
1127 	    addr->can_addr.tp.tx_id == so->txid)  in isotp_bind()
1140 	if (dev->mtu < so->ll.mtu) {  in isotp_bind()
1157 	if (so->bound && do_rx_reg) {  in isotp_bind()
1159 		if (so->ifindex) {  in isotp_bind()
1160 			dev = dev_get_by_index(net, so->ifindex);  in isotp_bind()
1162 				can_rx_unregister(net, dev, so->rxid,  in isotp_bind()
1163 						  SINGLE_MASK(so->rxid),  in isotp_bind()
1171 	so->ifindex = ifindex;  in isotp_bind()
1172 	so->rxid = addr->can_addr.tp.rx_id;  in isotp_bind()
1173 	so->txid = addr->can_addr.tp.tx_id;  in isotp_bind()
1174 	so->bound = 1;  in isotp_bind()
1192 	struct isotp_sock *so = isotp_sk(sk);  in isotp_getname()  local
1199 	addr->can_ifindex = so->ifindex;  in isotp_getname()
1200 	addr->can_addr.tp.rx_id = so->rxid;  in isotp_getname()
1201 	addr->can_addr.tp.tx_id = so->txid;  in isotp_getname()
1210 	struct isotp_sock *so = isotp_sk(sk);  in isotp_setsockopt_locked()  local
1213 	if (so->bound)  in isotp_setsockopt_locked()
1221 		if (copy_from_sockptr(&so->opt, optval, optlen))  in isotp_setsockopt_locked()
1225 		if (!(so->opt.flags & CAN_ISOTP_RX_EXT_ADDR))  in isotp_setsockopt_locked()
1226 			so->opt.rx_ext_address = so->opt.ext_address;  in isotp_setsockopt_locked()
1233 		if (copy_from_sockptr(&so->rxfc, optval, optlen))  in isotp_setsockopt_locked()
1241 		if (copy_from_sockptr(&so->force_tx_stmin, optval, optlen))  in isotp_setsockopt_locked()
1249 		if (copy_from_sockptr(&so->force_rx_stmin, optval, optlen))  in isotp_setsockopt_locked()
1271 			memcpy(&so->ll, &ll, sizeof(ll));  in isotp_setsockopt_locked()
1274 			so->tx.ll_dl = ll.tx_dl;  in isotp_setsockopt_locked()
1307 	struct isotp_sock *so = isotp_sk(sk);  in isotp_getsockopt()  local
1321 		val = &so->opt;  in isotp_getsockopt()
1326 		val = &so->rxfc;  in isotp_getsockopt()
1331 		val = &so->force_tx_stmin;  in isotp_getsockopt()
1336 		val = &so->force_rx_stmin;  in isotp_getsockopt()
1341 		val = &so->ll;  in isotp_getsockopt()
1355 static void isotp_notify(struct isotp_sock *so, unsigned long msg,  in isotp_notify()  argument
1358 	struct sock *sk = &so->sk;  in isotp_notify()
1363 	if (so->ifindex != dev->ifindex)  in isotp_notify()
1370 		if (so->bound && (!(so->opt.flags & CAN_ISOTP_SF_BROADCAST)))  in isotp_notify()
1371 			can_rx_unregister(dev_net(dev), dev, so->rxid,  in isotp_notify()
1372 					  SINGLE_MASK(so->rxid),  in isotp_notify()
1375 		so->ifindex = 0;  in isotp_notify()
1376 		so->bound  = 0;  in isotp_notify()
1417 	struct isotp_sock *so = isotp_sk(sk);  in isotp_init()  local
1419 	so->ifindex = 0;  in isotp_init()
1420 	so->bound = 0;  in isotp_init()
1422 	so->opt.flags = CAN_ISOTP_DEFAULT_FLAGS;  in isotp_init()
1423 	so->opt.ext_address = CAN_ISOTP_DEFAULT_EXT_ADDRESS;  in isotp_init()
1424 	so->opt.rx_ext_address = CAN_ISOTP_DEFAULT_EXT_ADDRESS;  in isotp_init()
1425 	so->opt.rxpad_content = CAN_ISOTP_DEFAULT_PAD_CONTENT;  in isotp_init()
1426 	so->opt.txpad_content = CAN_ISOTP_DEFAULT_PAD_CONTENT;  in isotp_init()
1427 	so->opt.frame_txtime = CAN_ISOTP_DEFAULT_FRAME_TXTIME;  in isotp_init()
1428 	so->rxfc.bs = CAN_ISOTP_DEFAULT_RECV_BS;  in isotp_init()
1429 	so->rxfc.stmin = CAN_ISOTP_DEFAULT_RECV_STMIN;  in isotp_init()
1430 	so->rxfc.wftmax = CAN_ISOTP_DEFAULT_RECV_WFTMAX;  in isotp_init()
1431 	so->ll.mtu = CAN_ISOTP_DEFAULT_LL_MTU;  in isotp_init()
1432 	so->ll.tx_dl = CAN_ISOTP_DEFAULT_LL_TX_DL;  in isotp_init()
1433 	so->ll.tx_flags = CAN_ISOTP_DEFAULT_LL_TX_FLAGS;  in isotp_init()
1436 	so->tx.ll_dl = so->ll.tx_dl;  in isotp_init()
1438 	so->rx.state = ISOTP_IDLE;  in isotp_init()
1439 	so->tx.state = ISOTP_IDLE;  in isotp_init()
1441 	hrtimer_init(&so->rxtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);  in isotp_init()
1442 	so->rxtimer.function = isotp_rx_timer_handler;  in isotp_init()
1443 	hrtimer_init(&so->txtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);  in isotp_init()
1444 	so->txtimer.function = isotp_tx_timer_handler;  in isotp_init()
1446 	init_waitqueue_head(&so->wait);  in isotp_init()
1449 	list_add_tail(&so->notifier, &isotp_notifier_list);  in isotp_init()