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

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Date:   Wed, 14 Apr 2021 16:24:14 +0300
From:   Dan Carpenter <dan.carpenter@...cle.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>
Subject: Re: [Outreachy kernel] [PATCH] staging: rtl8723bs: Remove useless
 led_blink_hdl()

On Wed, Apr 14, 2021 at 01:52:43PM +0200, Fabio M. De Francesco wrote:
> Removed the led_blink_hdl() function (declaration and definition).
> Declared dummy_function() in include/rtw_mlme_ext.h and defined it in
> core/rtw_cmd.c. Changed the second parameter of GEN_MLME_EXT_HANDLER
> macro to make use of dummy_function().
> 
> 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>
> ---
>  drivers/staging/rtl8723bs/core/rtw_cmd.c         | 4 +++-
>  drivers/staging/rtl8723bs/core/rtw_mlme_ext.c    | 9 ---------
>  drivers/staging/rtl8723bs/include/rtw_mlme_ext.h | 3 ++-
>  3 files changed, 5 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/staging/rtl8723bs/core/rtw_cmd.c b/drivers/staging/rtl8723bs/core/rtw_cmd.c
> index 0297fbad7bce..7b6102a2bb2c 100644
> --- a/drivers/staging/rtl8723bs/core/rtw_cmd.c
> +++ b/drivers/staging/rtl8723bs/core/rtw_cmd.c
> @@ -87,6 +87,8 @@ static struct _cmd_callback rtw_cmd_callback[] = {
>  	{GEN_CMD_CODE(_RunInThreadCMD), NULL},/*64*/
>  };
>  
> +u8 dummy_functioni(struct adapter *var0, u8 *var1) { return 0; }
> +
>  static struct cmd_hdl wlancmds[] = {
>  	GEN_DRV_CMD_HANDLER(0, NULL) /*0*/
>  	GEN_DRV_CMD_HANDLER(0, NULL)
> @@ -150,7 +152,7 @@ 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(sizeof(struct LedBlink_param), dummy_function) /*60*/

No, no.  Don't create a dummy function. Do it like so:

	GEN_DRV_CMD_HANDLER(0, NULL) /* 60 */

regards,
dan carpenter