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Bluetooth: Skip vendor diagnostic configuration for HCI User Channel

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When the HCI User Channel access is requested, then do not try to
undermine it with vendor diagnostic configuration. The exclusive user
is required to configure its own vendor diagnostic in that case and
can not rely on the host stack support.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann
2017-05-02 12:43:31 -07:00
parent 76c4969fec
commit b56c7b2548
1 changed files with 6 additions and 5 deletions
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net/bluetooth/hci_core.c
+6 -5
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@@ -148,13 +148,13 @@ static ssize_t vendor_diag_write(struct file *file, const char __user *user_buf,
return -EINVAL; return -EINVAL;
/* When the diagnostic flags are not persistent and the transport /* When the diagnostic flags are not persistent and the transport
* is not active, then there is no need for the vendor callback. * is not active or in user channel operation, then there is no need
* * for the vendor callback. Instead just store the desired value and
* Instead just store the desired value. If needed the setting * the setting will be programmed when the controller gets powered on.
* will be programmed when the controller gets powered on.
*/ */
if (test_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks) && if (test_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks) &&
!test_bit(HCI_RUNNING, &hdev->flags)) (!test_bit(HCI_RUNNING, &hdev->flags) ||
hci_dev_test_flag(hdev, HCI_USER_CHANNEL)))
goto done; goto done;
hci_req_sync_lock(hdev); hci_req_sync_lock(hdev);
@@ -1419,6 +1419,7 @@ static int hci_dev_do_open(struct hci_dev *hdev)
* completed. * completed.
*/ */
if (test_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks) && if (test_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks) &&
!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
hci_dev_test_flag(hdev, HCI_VENDOR_DIAG) && hdev->set_diag) hci_dev_test_flag(hdev, HCI_VENDOR_DIAG) && hdev->set_diag)
ret = hdev->set_diag(hdev, true); ret = hdev->set_diag(hdev, true);