104 static int h4_enqueue(struct hci_uart *hu, struct sk_buff *skb)  in h4_enqueue()  argument
108 	BT_DBG("hu %p skb %p", hu, skb);  in h4_enqueue()
111 	memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1);  in h4_enqueue()
112 	skb_queue_tail(&h4->txq, skb);  in h4_enqueue()
169 struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb,  in h4_recv_buf()  argument
176 		if (!skb) {  in h4_recv_buf()
181 				skb = bt_skb_alloc((&pkts[i])->maxlen,  in h4_recv_buf()
183 				if (!skb)  in h4_recv_buf()
186 				bt_cb(skb)->pkt_type = (&pkts[i])->type;  in h4_recv_buf()
187 				bt_cb(skb)->expect = (&pkts[i])->hlen;  in h4_recv_buf()
192 			if (!skb)  in h4_recv_buf()
199 		len = min_t(uint, bt_cb(skb)->expect - skb->len, count);  in h4_recv_buf()
200 		memcpy(skb_put(skb, len), buffer, len);  in h4_recv_buf()
206 		if (skb->len < bt_cb(skb)->expect)  in h4_recv_buf()
210 			if (bt_cb(skb)->pkt_type == (&pkts[i])->type)  in h4_recv_buf()
215 			kfree_skb(skb);  in h4_recv_buf()
219 		if (skb->len == (&pkts[i])->hlen) {  in h4_recv_buf()
225 				(&pkts[i])->recv(hdev, skb);  in h4_recv_buf()
226 				skb = NULL;  in h4_recv_buf()
230 				dlen = skb->data[(&pkts[i])->loff];  in h4_recv_buf()
231 				bt_cb(skb)->expect += dlen;  in h4_recv_buf()
233 				if (skb_tailroom(skb) < dlen) {  in h4_recv_buf()
234 					kfree_skb(skb);  in h4_recv_buf()
240 				dlen = get_unaligned_le16(skb->data +  in h4_recv_buf()
242 				bt_cb(skb)->expect += dlen;  in h4_recv_buf()
244 				if (skb_tailroom(skb) < dlen) {  in h4_recv_buf()
245 					kfree_skb(skb);  in h4_recv_buf()
251 				kfree_skb(skb);  in h4_recv_buf()
256 			(&pkts[i])->recv(hdev, skb);  in h4_recv_buf()
257 			skb = NULL;  in h4_recv_buf()
261 	return skb;  in h4_recv_buf()