linux-kernel - Re: [PATCH -next] drm/omap: remove set but not used variable 'frame

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Date:   Wed, 12 Sep 2018 00:29:34 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     YueHaibing <yuehaibing@...wei.com>
Cc:     Tomi Valkeinen <tomi.valkeinen@...com>,
        David Airlie <airlied@...ux.ie>,
        "Andrew F. Davis" <afd@...com>, Sebastian Reichel <sre@...nel.org>,
        Benoit Parrot <bparrot@...com>,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH -next] drm/omap: remove set but not used variable 'frame_height'

Hi YueHaibing,

Thank you for the patch.

On Tuesday, 11 September 2018 15:00:53 EEST YueHaibing wrote:
> Fixes gcc '-Wunused-but-set-variable' warning:
> 
> drivers/gpu/drm/omapdrm/dss/dispc.c: In function 'dispc_ovl_setup_common':
> drivers/gpu/drm/omapdrm/dss/dispc.c:2627:19: warning:
>  variable 'frame_height' set but not used [-Wunused-but-set-variable]
> 
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

I expect Tomi to pick this patch up, but I've also applied it to my tree to 
make sure it won't get lost.

> ---
>  drivers/gpu/drm/omapdrm/dss/dispc.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c
> b/drivers/gpu/drm/omapdrm/dss/dispc.c index e61a959..7c23f23 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dispc.c
> +++ b/drivers/gpu/drm/omapdrm/dss/dispc.c
> @@ -2624,7 +2624,7 @@ static int dispc_ovl_setup_common(struct dispc_device
> *dispc, unsigned int offset0, offset1;
>  	s32 row_inc;
>  	s32 pix_inc;
> -	u16 frame_width, frame_height;
> +	u16 frame_width;
>  	unsigned int field_offset = 0;
>  	u16 in_height = height;
>  	u16 in_width = width;
> @@ -2714,13 +2714,10 @@ static int dispc_ovl_setup_common(struct
> dispc_device *dispc, row_inc = 0;
>  	pix_inc = 0;
> 
> -	if (plane == OMAP_DSS_WB) {
> +	if (plane == OMAP_DSS_WB)
>  		frame_width = out_width;
> -		frame_height = out_height;
> -	} else {
> +	else
>  		frame_width = in_width;
> -		frame_height = height;
> -	}
> 
>  	calc_offset(screen_width, frame_width,
>  			fourcc, fieldmode, field_offset,

-- 
Regards,

Laurent Pinchart