diff options
| -rw-r--r-- | drivers/bluetooth/btusb.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index fe2692f5a8ab..7d2a8103dab8 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -1137,6 +1137,24 @@ static void btusb_qca_reset(struct hci_dev *hdev) btusb_reset(hdev); } +static u8 btusb_classify_qca_pkt_type(struct hci_dev *hdev, struct sk_buff *skb) +{ + /* Some Qualcomm controllers, e.g., QCNFA765 with WCN6855 chip, send debug + * packets as ACL frames with connection handle 0x2EDC. These are not real + * ACL packets and should be reclassified as HCI_DIAG_PKT to prevent + * "ACL packet for unknown connection handle 3804" errors. + */ + if (skb->len >= 2) { + u16 handle = get_unaligned_le16(skb->data); + + if (handle == 0x2EDC) + return HCI_DIAG_PKT; + } + + /* Use default packet type for other packets */ + return hci_skb_pkt_type(skb); +} + static inline void btusb_free_frags(struct btusb_data *data) { unsigned long flags; @@ -4245,6 +4263,7 @@ static int btusb_probe(struct usb_interface *intf, data->recv_acl = btusb_recv_acl_qca; hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL); data->setup_on_usb = btusb_setup_qca; + hdev->classify_pkt_type = btusb_classify_qca_pkt_type; hdev->shutdown = btusb_shutdown_qca; hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; hdev->reset = btusb_qca_reset; |