linux-kernel - Re: [PATCH 1/1] drm/msm/dpu: remove unused local variable 'cmd

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Date:   Wed, 07 Apr 2021 11:00:43 -0700
From:   abhinavk@...eaurora.org
To:     Zhen Lei <thunder.leizhen@...wei.com>
Cc:     Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        freedreno <freedreno@...ts.freedesktop.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>
Subject: Re: [PATCH 1/1] drm/msm/dpu: remove unused local variable 'cmd_enc'

On 2021-04-07 01:33, Zhen Lei wrote:
> Fixes the following W=1 kernel build warning:
> 
> drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c: In function
> ‘dpu_encoder_phys_cmd_wait_for_commit_done’:
> drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c:688:31: warning:
> variable ‘cmd_enc’ set but not used [-Wunused-but-set-variable]
> 
> Fixes: fe286893ed34 ("drm/msm/dpu: Remove unused call in 
> wait_for_commit_done")
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>
Reviewed-by: Abhinav Kumar <abhinavk@...eaurora.org>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
> index b2be39b9144e449..088900841bf8baa 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
> @@ -685,10 +685,6 @@ static int 
> dpu_encoder_phys_cmd_wait_for_tx_complete(
>  static int dpu_encoder_phys_cmd_wait_for_commit_done(
>  		struct dpu_encoder_phys *phys_enc)
>  {
> -	struct dpu_encoder_phys_cmd *cmd_enc;
> -
> -	cmd_enc = to_dpu_encoder_phys_cmd(phys_enc);
> -
>  	/* only required for master controller */
>  	if (!dpu_encoder_phys_cmd_is_master(phys_enc))
>  		return 0;