| Message ID | 20201122221731.441864-1-hdegoede@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/2] Bluetooth: btusb: Fix detection of some fake CSR controllers with a bcdDevice val of 0x0134 | expand |
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Dear submitter,
Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=389145
---Test result---
##############################
Test: CheckPatch - PASS
##############################
Test: CheckGitLint - FAIL
Output:
Bluetooth: btusb: Fix detection of some fake CSR controllers with a bcdDevice val of 0x0134
1: T1 Title exceeds max length (91>72): "Bluetooth: btusb: Fix detection of some fake CSR controllers with a bcdDevice val of 0x0134"
15: B1 Line exceeds max length (98>80): "Fixes: cde1a8a99287 ("Bluetooth: btusb: Fix and detect most of the Chinese Bluetooth controllers")"
Bluetooth: btusb: Add workaround for remote-wakeup issues with some fake CSR controllers
1: T1 Title exceeds max length (88>72): "Bluetooth: btusb: Add workaround for remote-wakeup issues with some fake CSR controllers"
##############################
Test: CheckBuildK - PASS
---
Regards,
Linux Bluetooth
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 1005b6e8ff74..ac7fede4f951 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -1763,6 +1763,8 @@ static int btusb_setup_bcm92035(struct hci_dev *hdev) static int btusb_setup_csr(struct hci_dev *hdev) { + struct btusb_data *data = hci_get_drvdata(hdev); + u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); struct hci_rp_read_local_version *rp; struct sk_buff *skb; bool is_fake = false; @@ -1832,6 +1834,12 @@ static int btusb_setup_csr(struct hci_dev *hdev) le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_4_0) is_fake = true; + /* Other clones which beat all the above checks */ + else if (bcdDevice == 0x0134 && + le16_to_cpu(rp->lmp_subver) == 0x0c5c && + le16_to_cpu(rp->hci_ver) == BLUETOOTH_VER_2_0) + is_fake = true; + if (is_fake) { bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds...");
Commit cde1a8a99287 ("Bluetooth: btusb: Fix and detect most of the Chinese Bluetooth controllers") made the detection of fake controllers more generic fixing it for much of the newer fakes / clones. But this does not work for a fake CSR controller with a bcdDevice value of 0x0134, which was correctly identified as fake before this change. Add an extra check for this special case, checking for a combination of a bcdDevice value of 0x0134, together with a lmp_subver of 0x0c5c and a hci_ver of BLUETOOTH_VER_2_0. Fixes: cde1a8a99287 ("Bluetooth: btusb: Fix and detect most of the Chinese Bluetooth controllers") Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- drivers/bluetooth/btusb.c | 8 ++++++++ 1 file changed, 8 insertions(+)