netdev - Re: [PATCH] net/bluetooth: remove unneeded err variable

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Message-Id: <91565226-5134-45FC-A68F-0E98854227AC@holtmann.org>
Date:   Wed, 19 Jan 2022 20:33:58 +0100
From:   Marcel Holtmann <marcel@...tmann.org>
To:     cgel.zte@...il.com
Cc:     Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        linux-bluetooth <linux-bluetooth@...r.kernel.org>,
        "open list:NETWORKING [GENERAL]" <netdev@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Minghao Chi <chi.minghao@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: Re: [PATCH] net/bluetooth: remove unneeded err variable

Hi Minghao,

> Return value from mgmt_cmd_complete() directly instead
> of taking this in another redundant variable.

the Bluetooth subsystem uses Bluetooth: as subject prefix.

> Reported-by: Zeal Robot <zealci@....com.cn>
> Signed-off-by: Minghao Chi <chi.minghao@....com.cn>
> Signed-off-by: CGEL ZTE <cgel.zte@...il.com>
> ---
> net/bluetooth/mgmt.c | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
> index 37087cf7dc5a..d0804648da32 100644
> --- a/net/bluetooth/mgmt.c
> +++ b/net/bluetooth/mgmt.c
> @@ -8601,7 +8601,6 @@ static int get_adv_size_info(struct sock *sk, struct hci_dev *hdev,
> 	struct mgmt_cp_get_adv_size_info *cp = data;
> 	struct mgmt_rp_get_adv_size_info rp;
> 	u32 flags, supported_flags;
> -	int err;
> 
> 	bt_dev_dbg(hdev, "sock %p", sk);
> 
> @@ -8628,10 +8627,8 @@ static int get_adv_size_info(struct sock *sk, struct hci_dev *hdev,
> 	rp.max_adv_data_len = tlv_data_max_len(hdev, flags, true);
> 	rp.max_scan_rsp_len = tlv_data_max_len(hdev, flags, false);
> 
> -	err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_ADV_SIZE_INFO,
> +	return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_ADV_SIZE_INFO,
> 				MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
> -
> -	return err;
> }

You also have a coding style error here in your indentation.

Regards

Marcel