Re: [PATCH v2 4/7] Bluetooth: Add helper functions to send LE scan commands

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Hi Andre,

On Tue, Jan 10, 2012, Andre Guedes wrote:
> This patch creates two helper functions to send LE Set Scan
> Parameters and LE Set Scan Enable commands.
> 
> Signed-off-by: Andre Guedes <andre.guedes@xxxxxxxxxxxxx>
> Acked-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
> ---
>  net/bluetooth/hci_core.c |   23 +++++++++++++++++++++++
>  1 files changed, 23 insertions(+), 0 deletions(-)
> 
> diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
> index 29bc1c6..0f8884f 100644
> --- a/net/bluetooth/hci_core.c
> +++ b/net/bluetooth/hci_core.c
> @@ -89,6 +89,29 @@ static void hci_notify(struct hci_dev *hdev, int event)
>  	atomic_notifier_call_chain(&hci_notifier, event, hdev);
>  }
>  
> +static int send_le_scan_param_cmd(struct hci_dev *hdev, u8 type, u16 interval,
> +								u16 window)
> +{
> +	struct hci_cp_le_set_scan_param cp;
> +
> +	memset(&cp, 0, sizeof(cp));
> +	cp.type = type;
> +	cp.interval = cpu_to_le16(interval);
> +	cp.window = cpu_to_le16(window);
> +
> +	return hci_send_cmd(hdev, HCI_OP_LE_SET_SCAN_PARAM, sizeof(cp), &cp);
> +}
> +
> +static int send_le_scan_enable_cmd(struct hci_dev *hdev, u8 enable)
> +{
> +	struct hci_cp_le_set_scan_enable cp;
> +
> +	memset(&cp, 0, sizeof(cp));
> +	cp.enable = enable;
> +
> +	return hci_send_cmd(hdev, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp);
> +}
> +
>  /* ---- HCI requests ---- */
>  
>  void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result)

This patch generates the following compiler warnings:

net/bluetooth/hci_core.c:92:12: warning: 'send_le_scan_param_cmd' defined but not used [-Wunused-function]
net/bluetooth/hci_core.c:105:12: warning: 'send_le_scan_enable_cmd' defined but not used [-Wunused-function]

I suppose the functions should only be introduced in a patch that also
contains some users for them.

Johan
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