linux-kernel - Re: [PATCH 1/8] backlight: lms501kf03: Remove unused const variables

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Message-ID: <20200625092434.szrdyt3sxmxmfajg@holly.lan>
Date:   Thu, 25 Jun 2020 10:24:34 +0100
From:   Daniel Thompson <daniel.thompson@...aro.org>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     jingoohan1@...il.com, dri-devel@...ts.freedesktop.org,
        linux-fbdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH 1/8] backlight: lms501kf03: Remove unused const variables

On Wed, Jun 24, 2020 at 03:57:14PM +0100, Lee Jones wrote:
> W=1 kernel build reports:
> 
>  drivers/video/backlight/lms501kf03.c:96:28: warning: ‘seq_sleep_in’ defined but not used [-Wunused-const-variable=]
>  96 | static const unsigned char seq_sleep_in[] = {
>  | ^~~~~~~~~~~~
>  drivers/video/backlight/lms501kf03.c:92:28: warning: ‘seq_up_dn’ defined but not used [-Wunused-const-variable=]
>  92 | static const unsigned char seq_up_dn[] = {
>  | ^~~~~~~~~
> 
> Either 'seq_sleep_in' nor 'seq_up_dn' have been used since the
> driver first landed in 2013.
> 
> Cc: <stable@...r.kernel.org>
> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
> Signed-off-by: Lee Jones <lee.jones@...aro.org>

Reviewed-by: Daniel Thompson <daniel.thompson@...aro.org>


> ---
>  drivers/video/backlight/lms501kf03.c | 8 --------
>  1 file changed, 8 deletions(-)
> 
> diff --git a/drivers/video/backlight/lms501kf03.c b/drivers/video/backlight/lms501kf03.c
> index 8ae32e3573c1a..c1bd02bb8b2ee 100644
> --- a/drivers/video/backlight/lms501kf03.c
> +++ b/drivers/video/backlight/lms501kf03.c
> @@ -89,14 +89,6 @@ static const unsigned char seq_rgb_gamma[] = {
>  	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
>  };
>  
> -static const unsigned char seq_up_dn[] = {
> -	0x36, 0x10,
> -};
> -
> -static const unsigned char seq_sleep_in[] = {
> -	0x10,
> -};
> -
>  static const unsigned char seq_sleep_out[] = {
>  	0x11,
>  };
> -- 
> 2.25.1
>