[kernel PATCH v1 1/1] Bluetooth: Return error if controller not support ll privacy

[Zhengping Jiang]

Return proper error message if the controller does not support ll privacy.

Signed-off-by: Zhengping Jiang <jiangzp@xxxxxxxxxx>
---

Changes in v1:
- Return proper mgmt error if controller does not support ll privacy

 net/bluetooth/mgmt.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index ef8371975c4eb..e5eb422d14464 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4143,6 +4143,12 @@ static int set_rpa_resolution_func(struct sock *sk, struct hci_dev *hdev,
 				       MGMT_OP_SET_EXP_FEATURE,
 				       MGMT_STATUS_INVALID_INDEX);
 
+	/* Controller does not support LL privacy */
+	if (!ll_privacy_capable(hdev))
+		return mgmt_cmd_status(sk, hdev->id,
+				       MGMT_OP_SET_EXP_FEATURE,
+				       MGMT_STATUS_NOT_SUPPORTED);
+
 	/* Changes can only be made when controller is powered down */
 	if (hdev_is_powered(hdev))
 		return mgmt_cmd_status(sk, hdev->id,
-- 
2.37.1.359.gd136c6c3e2-goog