linux-kernel - Re: [PATCH v2] staging: r8188eu: change return type of rtw_set_802_11

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Date:   Fri, 4 Nov 2022 19:21:52 +0100
From:   Philipp Hortmann <philipp.g.hortmann@...il.com>
To:     Phillip Potter <phil@...lpotter.co.uk>, gregkh@...uxfoundation.org
Cc:     Larry.Finger@...inger.net, paskripkin@...il.com,
        straube.linux@...il.com, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] staging: r8188eu: change return type of
 rtw_set_802_11_disassociate to void

On 11/4/22 00:06, Phillip Potter wrote:
> Change return type of rtw_set_802_11_disassociate to void. This function
> always returns 'true' no matter what, so there is no need to return a
> value, and no need to check for it in the two call sites within
> rtw_wx_set_mlme. Also, as we are no longer using ret in rtw_wx_set_mlme
> except as the return value, just remove it and return 0 directly.
> 
> Suggested-by: Michael Straube <straube.linux@...il.com>
> Signed-off-by: Phillip Potter <phil@...lpotter.co.uk>
> ---
> 
> Changes from V1: Act on feedback from Michael Straube:
> * Remove ret variable from rtw_wx_set_mlme and return 0 directly in
>    success case.
> 
> ---
>   drivers/staging/r8188eu/core/rtw_ioctl_set.c    | 4 +---
>   drivers/staging/r8188eu/include/rtw_ioctl_set.h | 2 +-
>   drivers/staging/r8188eu/os_dep/ioctl_linux.c    | 9 +++------
>   3 files changed, 5 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/staging/r8188eu/core/rtw_ioctl_set.c b/drivers/staging/r8188eu/core/rtw_ioctl_set.c
> index 786431826659..785c0dba508f 100644
> --- a/drivers/staging/r8188eu/core/rtw_ioctl_set.c
> +++ b/drivers/staging/r8188eu/core/rtw_ioctl_set.c
> @@ -314,7 +314,7 @@ u8 rtw_set_802_11_infrastructure_mode(struct adapter *padapter,
>   	return true;
>   }
>   
> -u8 rtw_set_802_11_disassociate(struct adapter *padapter)
> +void rtw_set_802_11_disassociate(struct adapter *padapter)
>   {
>   	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
>   
> @@ -328,8 +328,6 @@ u8 rtw_set_802_11_disassociate(struct adapter *padapter)
>   	}
>   
>   	spin_unlock_bh(&pmlmepriv->lock);
> -
> -	return true;
>   }
>   
>   u8 rtw_set_802_11_bssid_list_scan(struct adapter *padapter, struct ndis_802_11_ssid *pssid, int ssid_max_num)
> diff --git a/drivers/staging/r8188eu/include/rtw_ioctl_set.h b/drivers/staging/r8188eu/include/rtw_ioctl_set.h
> index abe460d6504d..c3eb2479f27b 100644
> --- a/drivers/staging/r8188eu/include/rtw_ioctl_set.h
> +++ b/drivers/staging/r8188eu/include/rtw_ioctl_set.h
> @@ -12,7 +12,7 @@ u8 rtw_set_802_11_authentication_mode(struct adapter *adapt,
>   				      enum ndis_802_11_auth_mode authmode);
>   u8 rtw_set_802_11_bssid(struct adapter *adapter, u8 *bssid);
>   u8 rtw_set_802_11_add_wep(struct adapter *adapter, struct ndis_802_11_wep *wep);
> -u8 rtw_set_802_11_disassociate(struct adapter *adapter);
> +void rtw_set_802_11_disassociate(struct adapter *adapter);
>   u8 rtw_set_802_11_bssid_list_scan(struct adapter *adapter,
>   				  struct ndis_802_11_ssid *pssid,
>   				  int ssid_max_num);
> diff --git a/drivers/staging/r8188eu/os_dep/ioctl_linux.c b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
> index dda48a2a6d0c..8e9b7b0664bc 100644
> --- a/drivers/staging/r8188eu/os_dep/ioctl_linux.c
> +++ b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
> @@ -1011,7 +1011,6 @@ static int rtw_wx_set_mlme(struct net_device *dev,
>   			     struct iw_request_info *info,
>   			     union iwreq_data *wrqu, char *extra)
>   {
> -	int ret = 0;
>   	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(dev);
>   	struct iw_mlme *mlme = (struct iw_mlme *)extra;
>   
> @@ -1020,17 +1019,15 @@ static int rtw_wx_set_mlme(struct net_device *dev,
>   
>   	switch (mlme->cmd) {
>   	case IW_MLME_DEAUTH:
> -		if (!rtw_set_802_11_disassociate(padapter))
> -			ret = -1;
> +		rtw_set_802_11_disassociate(padapter);
>   		break;
>   	case IW_MLME_DISASSOC:
> -		if (!rtw_set_802_11_disassociate(padapter))
> -			ret = -1;
> +		rtw_set_802_11_disassociate(padapter);
>   		break;
>   	default:
>   		return -EOPNOTSUPP;
>   	}
> -	return ret;
> +	return 0;
>   }
>   
>   static int rtw_wx_set_scan(struct net_device *dev, struct iw_request_info *a,

Tested-by: Philipp Hortmann <philipp.g.hortmann@...il.com> # Edimax N150