65 static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx);
107 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_get_ethtool_stats()  local
112 		p = (char *)ctx + cdc_ncm_gstrings_stats[i].stat_offset;  in cdc_ncm_get_ethtool_stats()
149 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_check_rx_max()  local
154 	max = min_t(u32, CDC_NCM_NTB_MAX_SIZE_RX, le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize));  in cdc_ncm_check_rx_max()
159 			 le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize), min);  in cdc_ncm_check_rx_max()
172 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_check_tx_max()  local
176 	min = ctx->max_datagram_size + ctx->max_ndp_size + sizeof(struct usb_cdc_ncm_nth16);  in cdc_ncm_check_tx_max()
177 	max = min_t(u32, CDC_NCM_NTB_MAX_SIZE_TX, le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize));  in cdc_ncm_check_tx_max()
192 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_show_min_tx_pkt()  local
194 	return sprintf(buf, "%u\n", ctx->min_tx_pkt);  in cdc_ncm_show_min_tx_pkt()
200 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_show_rx_max()  local
202 	return sprintf(buf, "%u\n", ctx->rx_max);  in cdc_ncm_show_rx_max()
208 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_show_tx_max()  local
210 	return sprintf(buf, "%u\n", ctx->tx_max);  in cdc_ncm_show_tx_max()
216 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_show_tx_timer_usecs()  local
218 	return sprintf(buf, "%u\n", ctx->timer_interval / (u32)NSEC_PER_USEC);  in cdc_ncm_show_tx_timer_usecs()
224 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_store_min_tx_pkt()  local
231 	ctx->min_tx_pkt = val;  in cdc_ncm_store_min_tx_pkt()
238 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_store_rx_max()  local
244 	cdc_ncm_update_rxtx_max(dev, val, ctx->tx_max);  in cdc_ncm_store_rx_max()
251 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_store_tx_max()  local
257 	cdc_ncm_update_rxtx_max(dev, ctx->rx_max, val);  in cdc_ncm_store_tx_max()
264 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_store_tx_timer_usecs()  local
274 	spin_lock_bh(&ctx->mtx);  in cdc_ncm_store_tx_timer_usecs()
275 	ctx->timer_interval = val * NSEC_PER_USEC;  in cdc_ncm_store_tx_timer_usecs()
276 	if (!ctx->timer_interval)  in cdc_ncm_store_tx_timer_usecs()
277 		ctx->tx_timer_pending = 0;  in cdc_ncm_store_tx_timer_usecs()
278 	spin_unlock_bh(&ctx->mtx);  in cdc_ncm_store_tx_timer_usecs()
291 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; \
292 	return sprintf(buf, format "\n", tocpu(ctx->ncm_parm.name));	\
333 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_update_rxtx_max()  local
334 	u8 iface_no = ctx->control->cur_altsetting->desc.bInterfaceNumber;  in cdc_ncm_update_rxtx_max()
340 	if (val != ctx->rx_max) {  in cdc_ncm_update_rxtx_max()
352 			ctx->rx_max = val;  in cdc_ncm_update_rxtx_max()
356 	if (dev->rx_urb_size != ctx->rx_max) {  in cdc_ncm_update_rxtx_max()
357 		dev->rx_urb_size = ctx->rx_max;  in cdc_ncm_update_rxtx_max()
363 	if (val != ctx->tx_max)  in cdc_ncm_update_rxtx_max()
373 	if (val != le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize) &&  in cdc_ncm_update_rxtx_max()
378 	if (netif_running(dev->net) && val > ctx->tx_max) {  in cdc_ncm_update_rxtx_max()
382 		if (ctx->tx_curr_skb) {  in cdc_ncm_update_rxtx_max()
383 			dev_kfree_skb_any(ctx->tx_curr_skb);  in cdc_ncm_update_rxtx_max()
384 			ctx->tx_curr_skb = NULL;  in cdc_ncm_update_rxtx_max()
386 		ctx->tx_max = val;  in cdc_ncm_update_rxtx_max()
389 		ctx->tx_max = val;  in cdc_ncm_update_rxtx_max()
392 	dev->hard_mtu = ctx->tx_max;  in cdc_ncm_update_rxtx_max()
398 	ctx->min_tx_pkt = clamp_t(u16, ctx->tx_max - 3 * usb_maxpacket(dev->udev, dev->out, 1),  in cdc_ncm_update_rxtx_max()
399 				  CDC_NCM_MIN_TX_PKT, ctx->tx_max);  in cdc_ncm_update_rxtx_max()
405 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_flags()  local
407 	if (cdc_ncm_comm_intf_is_mbim(dev->intf->cur_altsetting) && ctx->mbim_desc)  in cdc_ncm_flags()
408 		return ctx->mbim_desc->bmNetworkCapabilities;  in cdc_ncm_flags()
409 	if (ctx->func_desc)  in cdc_ncm_flags()
410 		return ctx->func_desc->bmNetworkCapabilities;  in cdc_ncm_flags()
430 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_max_dgram_size()  local
432 	if (cdc_ncm_comm_intf_is_mbim(dev->intf->cur_altsetting) && ctx->mbim_desc)  in cdc_ncm_max_dgram_size()
433 		return le16_to_cpu(ctx->mbim_desc->wMaxSegmentSize);  in cdc_ncm_max_dgram_size()
434 	if (ctx->ether_desc)  in cdc_ncm_max_dgram_size()
435 		return le16_to_cpu(ctx->ether_desc->wMaxSegmentSize);  in cdc_ncm_max_dgram_size()
444 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_init()  local
445 	u8 iface_no = ctx->control->cur_altsetting->desc.bInterfaceNumber;  in cdc_ncm_init()
451 			      0, iface_no, &ctx->ncm_parm,  in cdc_ncm_init()
452 			      sizeof(ctx->ncm_parm));  in cdc_ncm_init()
475 	if (le16_to_cpu(ctx->ncm_parm.bmNtbFormatsSupported) &  in cdc_ncm_init()
488 	ctx->rx_max = le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize);  in cdc_ncm_init()
489 	ctx->tx_max = le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize);  in cdc_ncm_init()
490 	ctx->tx_remainder = le16_to_cpu(ctx->ncm_parm.wNdpOutPayloadRemainder);  in cdc_ncm_init()
491 	ctx->tx_modulus = le16_to_cpu(ctx->ncm_parm.wNdpOutDivisor);  in cdc_ncm_init()
492 	ctx->tx_ndp_modulus = le16_to_cpu(ctx->ncm_parm.wNdpOutAlignment);  in cdc_ncm_init()
494 	ctx->tx_max_datagrams = le16_to_cpu(ctx->ncm_parm.wNtbOutMaxDatagrams);  in cdc_ncm_init()
498 		ctx->rx_max, ctx->tx_max, ctx->tx_remainder, ctx->tx_modulus,  in cdc_ncm_init()
499 		ctx->tx_ndp_modulus, ctx->tx_max_datagrams, cdc_ncm_flags(dev));  in cdc_ncm_init()
502 	if ((ctx->tx_max_datagrams == 0) ||  in cdc_ncm_init()
503 			(ctx->tx_max_datagrams > CDC_NCM_DPT_DATAGRAMS_MAX))  in cdc_ncm_init()
504 		ctx->tx_max_datagrams = CDC_NCM_DPT_DATAGRAMS_MAX;  in cdc_ncm_init()
507 …ctx->max_ndp_size = sizeof(struct usb_cdc_ncm_ndp16) + (ctx->tx_max_datagrams + 1) * sizeof(struct…  in cdc_ncm_init()
510 	ctx->timer_interval = CDC_NCM_TIMER_INTERVAL_USEC * NSEC_PER_USEC;  in cdc_ncm_init()
518 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_set_dgram_size()  local
519 	u8 iface_no = ctx->control->cur_altsetting->desc.bInterfaceNumber;  in cdc_ncm_set_dgram_size()
525 	ctx->max_datagram_size = clamp_t(u32, new_size,  in cdc_ncm_set_dgram_size()
542 	if (le16_to_cpu(max_datagram_size) == ctx->max_datagram_size)  in cdc_ncm_set_dgram_size()
545 	max_datagram_size = cpu_to_le16(ctx->max_datagram_size);  in cdc_ncm_set_dgram_size()
554 	dev->net->mtu = min_t(int, dev->net->mtu, ctx->max_datagram_size - cdc_ncm_eth_hlen(dev));  in cdc_ncm_set_dgram_size()
557 	if (ctx->mbim_extended_desc) {  in cdc_ncm_set_dgram_size()
558 		mbim_mtu = le16_to_cpu(ctx->mbim_extended_desc->wMTU);  in cdc_ncm_set_dgram_size()
566 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_fix_modulus()  local
575 	val = ctx->tx_ndp_modulus;  in cdc_ncm_fix_modulus()
578 	    (val != ((-val) & val)) || (val >= ctx->tx_max)) {  in cdc_ncm_fix_modulus()
580 		ctx->tx_ndp_modulus = USB_CDC_NCM_NDP_ALIGN_MIN_SIZE;  in cdc_ncm_fix_modulus()
589 	val = ctx->tx_modulus;  in cdc_ncm_fix_modulus()
592 	    (val != ((-val) & val)) || (val >= ctx->tx_max)) {  in cdc_ncm_fix_modulus()
594 		ctx->tx_modulus = USB_CDC_NCM_NDP_ALIGN_MIN_SIZE;  in cdc_ncm_fix_modulus()
598 	if (ctx->tx_remainder >= ctx->tx_modulus) {  in cdc_ncm_fix_modulus()
600 		ctx->tx_remainder = 0;  in cdc_ncm_fix_modulus()
604 	ctx->tx_remainder = ((ctx->tx_remainder - cdc_ncm_eth_hlen(dev)) &  in cdc_ncm_fix_modulus()
605 			     (ctx->tx_modulus - 1));  in cdc_ncm_fix_modulus()
610 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_setup()  local
617 		       le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize));  in cdc_ncm_setup()
619 		       le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize));  in cdc_ncm_setup()
673 static void cdc_ncm_free(struct cdc_ncm_ctx *ctx)  in cdc_ncm_free()  argument
675 	if (ctx == NULL)  in cdc_ncm_free()
678 	if (ctx->tx_rem_skb != NULL) {  in cdc_ncm_free()
679 		dev_kfree_skb_any(ctx->tx_rem_skb);  in cdc_ncm_free()
680 		ctx->tx_rem_skb = NULL;  in cdc_ncm_free()
683 	if (ctx->tx_curr_skb != NULL) {  in cdc_ncm_free()
684 		dev_kfree_skb_any(ctx->tx_curr_skb);  in cdc_ncm_free()
685 		ctx->tx_curr_skb = NULL;  in cdc_ncm_free()
688 	kfree(ctx);  in cdc_ncm_free()
698 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_change_mtu()  local
699 	int maxmtu = ctx->max_datagram_size - cdc_ncm_eth_hlen(dev);  in cdc_ncm_change_mtu()
721 	struct cdc_ncm_ctx *ctx;  in cdc_ncm_bind_common()  local
728 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);  in cdc_ncm_bind_common()
729 	if (!ctx)  in cdc_ncm_bind_common()
732 	hrtimer_init(&ctx->tx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);  in cdc_ncm_bind_common()
733 	ctx->tx_timer.function = &cdc_ncm_tx_timer_cb;  in cdc_ncm_bind_common()
734 	ctx->bh.data = (unsigned long)dev;  in cdc_ncm_bind_common()
735 	ctx->bh.func = cdc_ncm_txpath_bh;  in cdc_ncm_bind_common()
736 	atomic_set(&ctx->stop, 0);  in cdc_ncm_bind_common()
737 	spin_lock_init(&ctx->mtx);  in cdc_ncm_bind_common()
740 	dev->data[0] = (unsigned long)ctx;  in cdc_ncm_bind_common()
743 	ctx->control = intf;  in cdc_ncm_bind_common()
768 			ctx->data = usb_ifnum_to_if(dev->udev,  in cdc_ncm_bind_common()
773 			if (buf[0] < sizeof(*(ctx->ether_desc)))  in cdc_ncm_bind_common()
776 			ctx->ether_desc =  in cdc_ncm_bind_common()
781 			if (buf[0] < sizeof(*(ctx->func_desc)))  in cdc_ncm_bind_common()
784 			ctx->func_desc = (const struct usb_cdc_ncm_desc *)buf;  in cdc_ncm_bind_common()
788 			if (buf[0] < sizeof(*(ctx->mbim_desc)))  in cdc_ncm_bind_common()
791 			ctx->mbim_desc = (const struct usb_cdc_mbim_desc *)buf;  in cdc_ncm_bind_common()
795 			if (buf[0] < sizeof(*(ctx->mbim_extended_desc)))  in cdc_ncm_bind_common()
798 			ctx->mbim_extended_desc =  in cdc_ncm_bind_common()
814 		ctx->data = usb_ifnum_to_if(dev->udev, intf->cur_altsetting->desc.bInterfaceNumber + 1);  in cdc_ncm_bind_common()
819 	if (!ctx->data) {  in cdc_ncm_bind_common()
824 		if (!ctx->mbim_desc) {  in cdc_ncm_bind_common()
829 		if (!ctx->ether_desc || !ctx->func_desc) {  in cdc_ncm_bind_common()
836 	if (ctx->data != ctx->control) {  in cdc_ncm_bind_common()
837 		temp = usb_driver_claim_interface(driver, ctx->data, dev);  in cdc_ncm_bind_common()
844 	iface_no = ctx->data->cur_altsetting->desc.bInterfaceNumber;  in cdc_ncm_bind_common()
864 	cdc_ncm_find_endpoints(dev, ctx->data);  in cdc_ncm_bind_common()
865 	cdc_ncm_find_endpoints(dev, ctx->control);  in cdc_ncm_bind_common()
871 	usb_set_intfdata(ctx->data, dev);  in cdc_ncm_bind_common()
872 	usb_set_intfdata(ctx->control, dev);  in cdc_ncm_bind_common()
874 	if (ctx->ether_desc) {  in cdc_ncm_bind_common()
875 		temp = usbnet_get_ethernet_addr(dev, ctx->ether_desc->iMACAddress);  in cdc_ncm_bind_common()
898 	usb_set_intfdata(ctx->control, NULL);  in cdc_ncm_bind_common()
899 	usb_set_intfdata(ctx->data, NULL);  in cdc_ncm_bind_common()
900 	if (ctx->data != ctx->control)  in cdc_ncm_bind_common()
901 		usb_driver_release_interface(driver, ctx->data);  in cdc_ncm_bind_common()
912 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_unbind()  local
915 	if (ctx == NULL)  in cdc_ncm_unbind()
918 	atomic_set(&ctx->stop, 1);  in cdc_ncm_unbind()
920 	if (hrtimer_active(&ctx->tx_timer))  in cdc_ncm_unbind()
921 		hrtimer_cancel(&ctx->tx_timer);  in cdc_ncm_unbind()
923 	tasklet_kill(&ctx->bh);  in cdc_ncm_unbind()
926 	if (ctx->control == ctx->data)  in cdc_ncm_unbind()
927 		ctx->data = NULL;  in cdc_ncm_unbind()
930 	if (intf == ctx->control && ctx->data) {  in cdc_ncm_unbind()
931 		usb_set_intfdata(ctx->data, NULL);  in cdc_ncm_unbind()
932 		usb_driver_release_interface(driver, ctx->data);  in cdc_ncm_unbind()
933 		ctx->data = NULL;  in cdc_ncm_unbind()
935 	} else if (intf == ctx->data && ctx->control) {  in cdc_ncm_unbind()
936 		usb_set_intfdata(ctx->control, NULL);  in cdc_ncm_unbind()
937 		usb_driver_release_interface(driver, ctx->control);  in cdc_ncm_unbind()
938 		ctx->control = NULL;  in cdc_ncm_unbind()
942 	cdc_ncm_free(ctx);  in cdc_ncm_unbind()
1014 static struct usb_cdc_ncm_ndp16 *cdc_ncm_ndp(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 s…  in cdc_ncm_ndp()  argument
1029 	cdc_ncm_align_tail(skb, ctx->tx_ndp_modulus, 0, ctx->tx_max);  in cdc_ncm_ndp()
1032 	if ((ctx->tx_max - skb->len - reserve) < ctx->max_ndp_size)  in cdc_ncm_ndp()
1042 	ndp16 = (struct usb_cdc_ncm_ndp16 *)memset(skb_put(skb, ctx->max_ndp_size), 0, ctx->max_ndp_size);  in cdc_ncm_ndp()
1051 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_fill_tx_frame()  local
1060 		swap(skb, ctx->tx_rem_skb);  in cdc_ncm_fill_tx_frame()
1061 		swap(sign, ctx->tx_rem_sign);  in cdc_ncm_fill_tx_frame()
1067 	skb_out = ctx->tx_curr_skb;  in cdc_ncm_fill_tx_frame()
1071 		skb_out = alloc_skb(ctx->tx_max, GFP_ATOMIC);  in cdc_ncm_fill_tx_frame()
1083 		nth16->wSequence = cpu_to_le16(ctx->tx_seq++);  in cdc_ncm_fill_tx_frame()
1086 		ctx->tx_curr_frame_num = 0;  in cdc_ncm_fill_tx_frame()
1089 		ctx->tx_curr_frame_payload = 0;  in cdc_ncm_fill_tx_frame()
1092 	for (n = ctx->tx_curr_frame_num; n < ctx->tx_max_datagrams; n++) {  in cdc_ncm_fill_tx_frame()
1095 			skb = ctx->tx_rem_skb;  in cdc_ncm_fill_tx_frame()
1096 			sign = ctx->tx_rem_sign;  in cdc_ncm_fill_tx_frame()
1097 			ctx->tx_rem_skb = NULL;  in cdc_ncm_fill_tx_frame()
1105 		ndp16 = cdc_ncm_ndp(ctx, skb_out, sign, skb->len + ctx->tx_modulus + ctx->tx_remainder);  in cdc_ncm_fill_tx_frame()
1108 		cdc_ncm_align_tail(skb_out,  ctx->tx_modulus, ctx->tx_remainder, ctx->tx_max);  in cdc_ncm_fill_tx_frame()
1111 		if (!ndp16 || skb_out->len + skb->len > ctx->tx_max) {  in cdc_ncm_fill_tx_frame()
1119 				if (ctx->tx_rem_skb != NULL) {  in cdc_ncm_fill_tx_frame()
1120 					dev_kfree_skb_any(ctx->tx_rem_skb);  in cdc_ncm_fill_tx_frame()
1123 				ctx->tx_rem_skb = skb;  in cdc_ncm_fill_tx_frame()
1124 				ctx->tx_rem_sign = sign;  in cdc_ncm_fill_tx_frame()
1127 				ctx->tx_reason_ntb_full++;	/* count reason for transmitting */  in cdc_ncm_fill_tx_frame()
1141 		ctx->tx_curr_frame_payload += skb->len;	/* count real tx payload data */  in cdc_ncm_fill_tx_frame()
1148 			ctx->tx_reason_ndp_full++;	/* count reason for transmitting */  in cdc_ncm_fill_tx_frame()
1160 	ctx->tx_curr_frame_num = n;  in cdc_ncm_fill_tx_frame()
1165 		ctx->tx_curr_skb = skb_out;  in cdc_ncm_fill_tx_frame()
1168 	} else if ((n < ctx->tx_max_datagrams) && (ready2send == 0) && (ctx->timer_interval > 0)) {  in cdc_ncm_fill_tx_frame()
1171 		ctx->tx_curr_skb = skb_out;  in cdc_ncm_fill_tx_frame()
1174 			ctx->tx_timer_pending = CDC_NCM_TIMER_PENDING_CNT;  in cdc_ncm_fill_tx_frame()
1178 		if (n == ctx->tx_max_datagrams)  in cdc_ncm_fill_tx_frame()
1179 			ctx->tx_reason_max_datagram++;	/* count reason for transmitting */  in cdc_ncm_fill_tx_frame()
1194 	    skb_out->len > ctx->min_tx_pkt)  in cdc_ncm_fill_tx_frame()
1195 		memset(skb_put(skb_out, ctx->tx_max - skb_out->len), 0,  in cdc_ncm_fill_tx_frame()
1196 		       ctx->tx_max - skb_out->len);  in cdc_ncm_fill_tx_frame()
1197 	else if (skb_out->len < ctx->tx_max && (skb_out->len % dev->maxpacket) == 0)  in cdc_ncm_fill_tx_frame()
1205 	ctx->tx_curr_skb = NULL;  in cdc_ncm_fill_tx_frame()
1208 	ctx->tx_overhead += skb_out->len - ctx->tx_curr_frame_payload;  in cdc_ncm_fill_tx_frame()
1209 	ctx->tx_ntbs++;  in cdc_ncm_fill_tx_frame()
1216 				(long)ctx->tx_curr_frame_payload - skb_out->len);  in cdc_ncm_fill_tx_frame()
1222 	if (ctx->tx_curr_skb != NULL && n > 0)  in cdc_ncm_fill_tx_frame()
1223 		cdc_ncm_tx_timeout_start(ctx);  in cdc_ncm_fill_tx_frame()
1228 static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx)  in cdc_ncm_tx_timeout_start()  argument
1231 	if (!(hrtimer_active(&ctx->tx_timer) || atomic_read(&ctx->stop)))  in cdc_ncm_tx_timeout_start()
1232 		hrtimer_start(&ctx->tx_timer,  in cdc_ncm_tx_timeout_start()
1233 				ktime_set(0, ctx->timer_interval),  in cdc_ncm_tx_timeout_start()
1239 	struct cdc_ncm_ctx *ctx =  in cdc_ncm_tx_timer_cb()  local
1242 	if (!atomic_read(&ctx->stop))  in cdc_ncm_tx_timer_cb()
1243 		tasklet_schedule(&ctx->bh);  in cdc_ncm_tx_timer_cb()
1250 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_txpath_bh()  local
1252 	spin_lock_bh(&ctx->mtx);  in cdc_ncm_txpath_bh()
1253 	if (ctx->tx_timer_pending != 0) {  in cdc_ncm_txpath_bh()
1254 		ctx->tx_timer_pending--;  in cdc_ncm_txpath_bh()
1255 		cdc_ncm_tx_timeout_start(ctx);  in cdc_ncm_txpath_bh()
1256 		spin_unlock_bh(&ctx->mtx);  in cdc_ncm_txpath_bh()
1258 		ctx->tx_reason_timeout++;	/* count reason for transmitting */  in cdc_ncm_txpath_bh()
1259 		spin_unlock_bh(&ctx->mtx);  in cdc_ncm_txpath_bh()
1264 		spin_unlock_bh(&ctx->mtx);  in cdc_ncm_txpath_bh()
1272 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_tx_fixup()  local
1281 	if (ctx == NULL)  in cdc_ncm_tx_fixup()
1284 	spin_lock_bh(&ctx->mtx);  in cdc_ncm_tx_fixup()
1286 	spin_unlock_bh(&ctx->mtx);  in cdc_ncm_tx_fixup()
1298 int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in)  in cdc_ncm_rx_verify_nth16()  argument
1305 	if (ctx == NULL)  in cdc_ncm_rx_verify_nth16()
1324 	if (len > ctx->rx_max) {  in cdc_ncm_rx_verify_nth16()
1327 			  ctx->rx_max);  in cdc_ncm_rx_verify_nth16()
1331 	if ((ctx->rx_seq + 1) != le16_to_cpu(nth16->wSequence) &&  in cdc_ncm_rx_verify_nth16()
1332 	    (ctx->rx_seq || le16_to_cpu(nth16->wSequence)) &&  in cdc_ncm_rx_verify_nth16()
1333 	    !((ctx->rx_seq == 0xffff) && !le16_to_cpu(nth16->wSequence))) {  in cdc_ncm_rx_verify_nth16()
1336 			  ctx->rx_seq, le16_to_cpu(nth16->wSequence));  in cdc_ncm_rx_verify_nth16()
1338 	ctx->rx_seq = le16_to_cpu(nth16->wSequence);  in cdc_ncm_rx_verify_nth16()
1385 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_rx_fixup()  local
1396 	ndpoffset = cdc_ncm_rx_verify_nth16(ctx, skb_in);  in cdc_ncm_rx_fixup()
1431 				(len > ctx->rx_max) || (len < ETH_HLEN)) {  in cdc_ncm_rx_fixup()
1456 	ctx->rx_overhead += skb_in->len - payload;  in cdc_ncm_rx_fixup()
1457 	ctx->rx_ntbs++;  in cdc_ncm_rx_fixup()
1491 	struct cdc_ncm_ctx *ctx;  in cdc_ncm_status()  local
1494 	ctx = (struct cdc_ncm_ctx *)dev->data[0];  in cdc_ncm_status()