Hi Mateusz,
Please note that this is UNTESTED, hence the RFC tag. I don't have any
code that exercises this particular part of the code, but if it works,
it should solve your:
Bluetooth: hci0: HCI_REQ-0xfcf0
error.
--Brian
On Mon, 2022-10-31 at 15:02 -0700, Brian Gix wrote:
> The msft_set_filter_enable() command was using the deprecated
> hci_request mechanism rather than hci_sync. This caused the warning
> error:
> hci0: HCI_REQ-0xfcf0
>
> Signed-off-by: Brian Gix <brian.gix@xxxxxxxxx>
> ---
> net/bluetooth/msft.c | 36 +++++++++++-------------------------
> 1 file changed, 11 insertions(+), 25 deletions(-)
>
> diff --git a/net/bluetooth/msft.c b/net/bluetooth/msft.c
> index bee6a4c656be..bf5cee48916c 100644
> --- a/net/bluetooth/msft.c
> +++ b/net/bluetooth/msft.c
> @@ -743,17 +743,12 @@ __u64 msft_get_features(struct hci_dev *hdev)
> }
>
> static void msft_le_set_advertisement_filter_enable_cb(struct
> hci_dev *hdev,
> - u8 status, u16
> opcode,
> - struct sk_buff
> *skb)
> + void
> *user_data,
> + u8 status)
> {
> - struct msft_cp_le_set_advertisement_filter_enable *cp;
> - struct msft_rp_le_set_advertisement_filter_enable *rp;
> + struct msft_cp_le_set_advertisement_filter_enable *cp =
> user_data;
> struct msft_data *msft = hdev->msft_data;
>
> - rp = (struct msft_rp_le_set_advertisement_filter_enable
> *)skb->data;
> - if (skb->len < sizeof(*rp))
> - return;
> -
> /* Error 0x0C would be returned if the filter enabled status
> is
> * already set to whatever we were trying to set.
> * Although the default state should be disabled, some
> controller set
> @@ -766,7 +761,6 @@ static void
> msft_le_set_advertisement_filter_enable_cb(struct hci_dev *hdev,
>
> hci_dev_lock(hdev);
>
> - cp = hci_sent_cmd_data(hdev, hdev->msft_opcode);
> msft->filter_enabled = cp->enable;
>
> if (status == 0x0C)
> @@ -804,31 +798,23 @@ int msft_remove_monitor(struct hci_dev *hdev,
> struct adv_monitor *monitor)
> return msft_remove_monitor_sync(hdev, monitor);
> }
>
> -void msft_req_add_set_filter_enable(struct hci_request *req, bool
> enable)
> -{
> - struct hci_dev *hdev = req->hdev;
> - struct msft_cp_le_set_advertisement_filter_enable cp;
> -
> - cp.sub_opcode = MSFT_OP_LE_SET_ADVERTISEMENT_FILTER_ENABLE;
> - cp.enable = enable;
> -
> - hci_req_add(req, hdev->msft_opcode, sizeof(cp), &cp);
> -}
> -
> int msft_set_filter_enable(struct hci_dev *hdev, bool enable)
> {
> - struct hci_request req;
> + struct msft_cp_le_set_advertisement_filter_enable cp;
> struct msft_data *msft = hdev->msft_data;
> int err;
>
> if (!msft)
> return -EOPNOTSUPP;
>
> - hci_req_init(&req, hdev);
> - msft_req_add_set_filter_enable(&req, enable);
> - err = hci_req_run_skb(&req,
> msft_le_set_advertisement_filter_enable_cb);
> + cp.sub_opcode = MSFT_OP_LE_SET_ADVERTISEMENT_FILTER_ENABLE;
> + cp.enable = enable;
> + err = __hci_cmd_sync_status(hdev, hdev->msft_opcode,
> sizeof(cp), &cp,
> + HCI_CMD_TIMEOUT);
> +
> + msft_le_set_advertisement_filter_enable_cb(hdev, &cp, err);
>
> - return err;
> + return 0;
> }
>
> bool msft_curve_validity(struct hci_dev *hdev)
