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

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Message-ID: <74c6ad05-331f-5073-89ad-0efda6226dbc@linaro.org>
Date:   Thu, 20 Jan 2022 01:42:54 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Yang Li <yang.lee@...ux.alibaba.com>, robdclark@...il.com
Cc:     sean@...rly.run, quic_abhinavk@...cinc.com, airlied@...ux.ie,
        daniel@...ll.ch, nathan@...nel.org, ndesaulniers@...gle.com,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev, Abaci Robot <abaci@...ux.alibaba.com>
Subject: Re: [PATCH -next] drm/msm: remove variable set but not used

On 16/12/2021 06:11, Yang Li wrote:
> The code that uses variable mdss has been removed, So the declaration
> and assignment of the variable can be removed.
> 
> Eliminate the following clang warning:
> drivers/gpu/drm/msm/msm_drv.c:513:19: warning: variable 'mdss' set but
> not used [-Wunused-but-set-variable]
> 
> Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
> Fixes: 2027e5b3413d ("drm/msm: Initialize MDSS irq domain at probe time")
> Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

> ---
>   drivers/gpu/drm/msm/msm_drv.c | 3 ---
>   1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
> index ad35a5d94053..59e30192cdf6 100644
> --- a/drivers/gpu/drm/msm/msm_drv.c
> +++ b/drivers/gpu/drm/msm/msm_drv.c
> @@ -510,7 +510,6 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
>   	struct msm_drm_private *priv = dev_get_drvdata(dev);
>   	struct drm_device *ddev;
>   	struct msm_kms *kms;
> -	struct msm_mdss *mdss;
>   	int ret, i;
>   
>   	ddev = drm_dev_alloc(drv, dev);
> @@ -521,8 +520,6 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
>   	ddev->dev_private = priv;
>   	priv->dev = ddev;
>   
> -	mdss = priv->mdss;
> -
>   	priv->wq = alloc_ordered_workqueue("msm", 0);
>   	priv->hangcheck_period = DRM_MSM_HANGCHECK_DEFAULT_PERIOD;
>   


-- 
With best wishes
Dmitry