linux-kernel - Re: [PATCH] video: fbdev: remove set but not used 'ulBestVCO'

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Message-ID: <8b15618f-eaf5-e646-2655-939d8b456b27@samsung.com>
Date:   Tue, 8 Sep 2020 13:37:46 +0200
From:   Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:     Jason Yan <yanaijie@...wei.com>
Cc:     dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Hulk Robot <hulkci@...wei.com>
Subject: Re: [PATCH] video: fbdev: remove set but not used 'ulBestVCO'


On 8/27/20 3:00 PM, Jason Yan wrote:
> This addresses the following gcc warning with "make W=1":
> 
> drivers/video/fbdev/kyro/STG4000InitDevice.c: In function
> ‘ProgramClock’:
> drivers/video/fbdev/kyro/STG4000InitDevice.c:123:6: warning: variable
> ‘ulBestVCO’ set but not used [-Wunused-but-set-variable]
>   123 |  u32 ulBestVCO = 0, ulBestClk = 0, ulBestScore = 0;
>       |      ^~~~~~~~~
> 
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: Jason Yan <yanaijie@...wei.com>

Applied to drm-misc-next tree, thanks.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

> ---
>  drivers/video/fbdev/kyro/STG4000InitDevice.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/video/fbdev/kyro/STG4000InitDevice.c b/drivers/video/fbdev/kyro/STG4000InitDevice.c
> index edaeec2d9590..21875d3c2dc2 100644
> --- a/drivers/video/fbdev/kyro/STG4000InitDevice.c
> +++ b/drivers/video/fbdev/kyro/STG4000InitDevice.c
> @@ -120,7 +120,7 @@ u32 ProgramClock(u32 refClock,
>  {
>  	u32 R = 0, F = 0, OD = 0, ODIndex = 0;
>  	u32 ulBestR = 0, ulBestF = 0, ulBestOD = 0;
> -	u32 ulBestVCO = 0, ulBestClk = 0, ulBestScore = 0;
> +	u32 ulBestClk = 0, ulBestScore = 0;
>  	u32 ulScore, ulPhaseScore, ulVcoScore;
>  	u32 ulTmp = 0, ulVCO;
>  	u32 ulScaleClockReq, ulMinClock, ulMaxClock;
> @@ -189,7 +189,6 @@ u32 ProgramClock(u32 refClock,
>  						ulScore = ulPhaseScore + ulVcoScore;
>  
>  						if (!ulBestScore) {
> -							ulBestVCO = ulVCO;
>  							ulBestOD = OD;
>  							ulBestF = F;
>  							ulBestR = R;
> @@ -206,7 +205,6 @@ u32 ProgramClock(u32 refClock,
>                            but we shall keep this code in case new restrictions come into play
>                            --------------------------------------------------------------------------*/
>  						if ((ulScore >= ulBestScore) && (OD > 0)) {
> -							ulBestVCO = ulVCO;
>  							ulBestOD = OD;
>  							ulBestF = F;
>  							ulBestR = R;
>