linux-kernel - Re: [Outreachy kernel] [PATCH v2] staging: rtl8723bs: Remove useless led_blink

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Message-ID: <20210414164650.GA1418@agape.jhs>
Date:   Wed, 14 Apr 2021 18:46:51 +0200
From:   Fabio Aiuto <fabioaiuto83@...il.com>
To:     "Fabio M. De Francesco" <fmdefrancesco@...il.com>
Cc:     outreachy-kernel@...glegroups.com,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Matthew Wilcox <willy@...radead.org>,
        Julia Lawall <julia.lawall@...ia.fr>,
        Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [Outreachy kernel] [PATCH v2] staging: rtl8723bs: Remove useless
 led_blink_hdl()

On Wed, Apr 14, 2021 at 06:26:14PM +0200, Fabio M. De Francesco wrote:
> Removed useless led_blink_hdl() prototype and definition. In wlancmds[]
> the slot #60 is now set to NULL using the macro GEN_MLME_EXT_HANDLER. This
> change has not unwanted side effects because the code in rtw_cmd.c checks
> if the function pointer is valid before using it.
> 
> Reported-by: Julia Lawall <julia.lawall@...ia.fr>
> Suggested-by: Dan Carpenter <dan.carpenter@...cle.com>
> Signed-off-by: Fabio M. De Francesco <fmdefrancesco@...il.com>
> ---
> 
> Changes since v1: Corrected a bad solution to this issue that made use of
> an unnecessary dummy function.
> 
>  drivers/staging/rtl8723bs/core/rtw_cmd.c         | 2 +-
>  drivers/staging/rtl8723bs/core/rtw_mlme_ext.c    | 9 ---------
>  drivers/staging/rtl8723bs/include/rtw_mlme_ext.h | 1 -
>  3 files changed, 1 insertion(+), 11 deletions(-)
> 
> diff --git a/drivers/staging/rtl8723bs/core/rtw_cmd.c b/drivers/staging/rtl8723bs/core/rtw_cmd.c
> index 0297fbad7bce..f82dbd4f4c3d 100644
> --- a/drivers/staging/rtl8723bs/core/rtw_cmd.c
> +++ b/drivers/staging/rtl8723bs/core/rtw_cmd.c
> @@ -150,7 +150,7 @@ static struct cmd_hdl wlancmds[] = {
>  
>  	GEN_MLME_EXT_HANDLER(0, h2c_msg_hdl) /*58*/
>  	GEN_MLME_EXT_HANDLER(sizeof(struct SetChannelPlan_param), set_chplan_hdl) /*59*/
> -	GEN_MLME_EXT_HANDLER(sizeof(struct LedBlink_param), led_blink_hdl) /*60*/
> +	GEN_MLME_EXT_HANDLER(0, NULL) /*60*/

I'd remove LedBlink_param struct as well, now it's unused

>  
>  	GEN_MLME_EXT_HANDLER(sizeof(struct SetChannelSwitch_param), set_csa_hdl) /*61*/
>  	GEN_MLME_EXT_HANDLER(sizeof(struct TDLSoption_param), tdls_hdl) /*62*/
> diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
> index 873d3792ac8e..963ea80083c8 100644
> --- a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
> +++ b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
> @@ -6189,15 +6189,6 @@ u8 set_chplan_hdl(struct adapter *padapter, unsigned char *pbuf)
>  	return	H2C_SUCCESS;
>  }
>  
> -u8 led_blink_hdl(struct adapter *padapter, unsigned char *pbuf)
> -{
> -
> -	if (!pbuf)
> -		return H2C_PARAMETERS_ERROR;
> -
> -	return	H2C_SUCCESS;
> -}
> -
>  u8 set_csa_hdl(struct adapter *padapter, unsigned char *pbuf)
>  {
>  	return	H2C_REJECTED;
> diff --git a/drivers/staging/rtl8723bs/include/rtw_mlme_ext.h b/drivers/staging/rtl8723bs/include/rtw_mlme_ext.h
> index 5e6cf63956b8..472818c5fd83 100644
> --- a/drivers/staging/rtl8723bs/include/rtw_mlme_ext.h
> +++ b/drivers/staging/rtl8723bs/include/rtw_mlme_ext.h
> @@ -745,7 +745,6 @@ u8 chk_bmc_sleepq_hdl(struct adapter *padapter, unsigned char *pbuf);
>  u8 tx_beacon_hdl(struct adapter *padapter, unsigned char *pbuf);
>  u8 set_ch_hdl(struct adapter *padapter, u8 *pbuf);
>  u8 set_chplan_hdl(struct adapter *padapter, unsigned char *pbuf);
> -u8 led_blink_hdl(struct adapter *padapter, unsigned char *pbuf);
>  u8 set_csa_hdl(struct adapter *padapter, unsigned char *pbuf);	/* Kurt: Handling DFS channel switch announcement ie. */
>  u8 tdls_hdl(struct adapter *padapter, unsigned char *pbuf);
>  u8 run_in_thread_hdl(struct adapter *padapter, u8 *pbuf);
> -- 
> 2.31.1
> 
> 

thank you,

fabio