Re: [PATCH -next 1/6] staging: rtl8723bs: ieee80211: remove unused variable

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On Fri, Mar 26, 2021 at 06:17:31PM -0600, Edmundo Carmona Antoranz wrote:
> sec_idx in rtw_get_sec_ie() is set to 0 and never changes value. Also,
> it is only used for debugging messages. Therefore the variable is
> removed and the debug messages are adjusted. Adjusting debug messages
> forced style changes. Taking the opportunity to adjust indentation
> of those sections of the code.
> 
> Removing this warning:
> 
> drivers/staging/rtl8723bs/core/rtw_ieee80211.c:657:15: warning: variable ‘sec_idx’ set but not used [-Wunused-but-set-variable]
> 
> Signed-off-by: Edmundo Carmona Antoranz <eantoranz@xxxxxxxxx>
> ---
>  .../staging/rtl8723bs/core/rtw_ieee80211.c    | 43 +++++++++++--------
>  1 file changed, 25 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/staging/rtl8723bs/core/rtw_ieee80211.c b/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
> index cccbea555a32..ec065d924fbb 100644
> --- a/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
> +++ b/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
> @@ -654,7 +654,7 @@ int rtw_get_wapi_ie(u8 *in_ie, uint in_len, u8 *wapi_ie, u16 *wapi_len)
>  
>  void rtw_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len, u8 *wpa_ie, u16 *wpa_len)
>  {
> -	u8 authmode, sec_idx, i;
> +	u8 authmode, i;
>  	u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
>  	uint	cnt;
>  
> @@ -662,37 +662,44 @@ void rtw_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len, u8 *wpa_ie
>  
>  	cnt = (_TIMESTAMP_ + _BEACON_ITERVAL_ + _CAPABILITY_);
>  
> -	sec_idx = 0;
> -
>  	while (cnt < in_len) {
>  		authmode = in_ie[cnt];
>  
>  		if ((authmode == WLAN_EID_VENDOR_SPECIFIC) && (!memcmp(&in_ie[cnt+2], &wpa_oui[0], 4))) {
> -				RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n rtw_get_wpa_ie: sec_idx =%d in_ie[cnt+1]+2 =%d\n", sec_idx, in_ie[cnt+1]+2));
> +			RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
> +				 ("\n rtw_get_wpa_ie: in_ie[cnt+1]+2 =%d\n", in_ie[cnt + 1] + 2));

These "RT_TRACE" things need to all be removed or use the real in-kernel
api instead.  Please do not hide the problems with them by trying to
clean them up.

thanks,

greg k-h



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