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SubjectRe: [PATCH 2/2] Bluetooth: btrtl: Add firmware version print
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Hi Alex,

> This patch is used to print fw version for debug convenience
>
> Signed-off-by: Alex Lu <alex_lu@realsil.com.cn>
> ---
> drivers/bluetooth/btrtl.c | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
> index b7487ab99eed..7219eb98d02d 100644
> --- a/drivers/bluetooth/btrtl.c
> +++ b/drivers/bluetooth/btrtl.c
> @@ -151,6 +151,8 @@ static const struct id_table ic_id_table[] = {
> .cfg_name = "rtl_bt/rtl8822b_config" },
> };
>
> +static struct sk_buff *btrtl_read_local_version(struct hci_dev *hdev);
> +
> static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
> u8 hci_ver, u8 hci_bus)
> {
> @@ -368,6 +370,8 @@ static int rtl_download_firmware(struct hci_dev *hdev,
> int frag_len = RTL_FRAG_LEN;
> int ret = 0;
> int i;
> + struct sk_buff *skb;
> + struct hci_rp_read_local_version *rp;
>
> dl_cmd = kmalloc(sizeof(struct rtl_download_cmd), GFP_KERNEL);
> if (!dl_cmd)
> @@ -406,6 +410,18 @@ static int rtl_download_firmware(struct hci_dev *hdev,
> data += RTL_FRAG_LEN;
> }
>
> + skb = btrtl_read_local_version(hdev);
> + if (IS_ERR(skb)) {
> + ret = PTR_ERR(skb);
> + rtl_dev_err(hdev, "read local version failed");
> + goto out;
> + }
> +
> + rp = (struct hci_rp_read_local_version *)skb->data;
> + rtl_dev_info(hdev, "rtl: fw version 0x%04x%04x",
> + __le16_to_cpu(rp->hci_rev), __le16_to_cpu(rp->lmp_subver));
> + kfree_skb(skb);
> +

if you really want to do this, then please re-order the code so that no forward declaration is needed.

Regards

Marcel

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