Commit b56c7b25 authored by Marcel Holtmann's avatar Marcel Holtmann
Browse files

Bluetooth: Skip vendor diagnostic configuration for HCI User Channel 



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: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
parent 76c4969f

net/bluetooth/hci_core.c

+6 −5
Original line number Diff line number Diff line
@@ -148,13 +148,13 @@ static ssize_t vendor_diag_write(struct file *file, const char __user *user_buf, 
		return -EINVAL;



	/* When the diagnostic flags are not persistent and the transport

	 * is not active, then there is no need for the vendor callback.

	 *

	 * Instead just store the desired value. If needed the setting

	 * will be programmed when the controller gets powered on.

	 * is not active or in user channel operation, then there is no need

	 * for the vendor callback. Instead just store the desired value and

	 * the setting will be programmed when the controller gets powered on.

	 */

	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;



	hci_req_sync_lock(hdev);
@@ -1419,6 +1419,7 @@ static int hci_dev_do_open(struct hci_dev *hdev) 
	 * completed.

	 */

	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)

		ret = hdev->set_diag(hdev, true);

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