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authorMarcel Holtmann <marcel@holtmann.org>2017-05-02 21:43:31 +0200
committerMarcel Holtmann <marcel@holtmann.org>2017-05-18 13:52:49 +0200
commitb56c7b2548a428d37b56951f419122ef4c75cc1b (patch)
tree7033fd0e6a63e9fabebd7a394438e353700ad6b1 /net/bluetooth
parentBluetooth: hci_uart: fix kconfig dependency (diff)
downloadlinux-b56c7b2548a428d37b56951f419122ef4c75cc1b.tar.xz
linux-b56c7b2548a428d37b56951f419122ef4c75cc1b.zip
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: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_core.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 43fecd59dfef..7655b4005dfb 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -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);