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

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Message-ID: <2e065cba-8094-3900-67e6-3a647bec3a7c@gmail.com>
Date:   Thu, 3 Nov 2022 06:37:38 +0100
From:   Michael Straube <straube.linux@...il.com>
To:     Phillip Potter <phil@...lpotter.co.uk>, gregkh@...uxfoundation.org
Cc:     Larry.Finger@...inger.net, paskripkin@...il.com,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: r8188eu: change return type of
 rtw_set_802_11_disassociate to void

Hi Phillip,

On 11/3/22 00:36, 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.
> 
> Signed-off-by: Phillip Potter <phil@...lpotter.co.uk>
> ---
>   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    | 6 ++----
>   3 files changed, 4 insertions(+), 8 deletions(-)
> 

<snip>

> --- a/drivers/staging/r8188eu/os_dep/ioctl_linux.c
> +++ b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
> @@ -1020,12 +1020,10 @@ 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;

You could also remove the ret variable and return 0 directly, since ret
is not changed anymore in the function.

regards,
Michael