[patch] gma500: silence an unused variable warning

[Kirill A. Shutemov]

On Thu, May 10, 2012 at 10:33:02AM +0300, Dan Carpenter wrote:
> If CONFIG_BACKLIGHT_CLASS_DEVICE is disabled then GCC warns that:
> 	drivers/gpu/drm/gma500/opregion.c:154:6: warning:
> 		unused variable ‘max’ [-Wunused-variable]
> 
> Which give me a chance to use the new config_enabled() macro.  :)

The first [direct] user of config_enabled()! :)

Acked-by: Kirill A. Shutemov <kirill.shutemov at linux.intel.com>

> 
> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
> 
> diff --git a/drivers/gpu/drm/gma500/opregion.c b/drivers/gpu/drm/gma500/opregion.c
> index 05661bf..d2125ba 100644
> --- a/drivers/gpu/drm/gma500/opregion.c
> +++ b/drivers/gpu/drm/gma500/opregion.c
> @@ -151,7 +151,6 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
>  	struct drm_psb_private *dev_priv = dev->dev_private;
>  	struct opregion_asle *asle = dev_priv->opregion.asle;
>  	struct backlight_device *bd = dev_priv->backlight_device;
> -	u32 max;
>  
>  	DRM_DEBUG_DRIVER("asle set backlight %x\n", bclp);
>  
> @@ -165,11 +164,12 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
>  	if (bclp > 255)
>  		return ASLE_BACKLIGHT_FAILED;
>  
> -#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
> -	max = bd->props.max_brightness;
> -	bd->props.brightness = bclp * max / 255;
> -	backlight_update_status(bd);
> -#endif
> +	if (config_enabled(CONFIG_BACKLIGHT_CLASS_DEVICE)) {
> +		int max = bd->props.max_brightness;
> +		bd->props.brightness = bclp * max / 255;
> +		backlight_update_status(bd);
> +	}
> +
>  	asle->cblv = (bclp * 0x64) / 0xff | ASLE_CBLV_VALID;
>  
>  	return 0;

-- 
 Kirill A. Shutemov
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20120510/b55928d9/attachment.pgp>