linux-kernel - Re: [Freedreno] [PATCH 38/40] drm/msm/disp/dpu1/dpu_core_perf: Remove set but unused variable 'dpu

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Date:   Fri, 13 Nov 2020 11:42:15 -0800
From:   abhinavk@...eaurora.org
To:     Lee Jones <lee.jones@...aro.org>
Cc:     freedreno@...ts.freedesktop.org, David Airlie <airlied@...ux.ie>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, Rob Clark <robdclark@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Kalyan Thota <kalyan_t@...eaurora.org>,
        Sean Paul <sean@...rly.run>
Subject: Re: [Freedreno] [PATCH 38/40] drm/msm/disp/dpu1/dpu_core_perf: Remove
 set but unused variable 'dpu_cstate'

On 2020-11-13 05:49, Lee Jones wrote:
> Fixes the following W=1 kernel build warning(s):
> 
>  drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c: In function
> ‘_dpu_core_perf_calc_crtc’:
>  drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c:113:25: warning:
> variable ‘dpu_cstate’ set but not used [-Wunused-but-set-variable]
> 
> Cc: Rob Clark <robdclark@...il.com>
> Cc: Sean Paul <sean@...rly.run>
> Cc: David Airlie <airlied@...ux.ie>
> Cc: Daniel Vetter <daniel@...ll.ch>
> Cc: Kalyan Thota <kalyan_t@...eaurora.org>
> Cc: linux-arm-msm@...r.kernel.org
> Cc: dri-devel@...ts.freedesktop.org
> Cc: freedreno@...ts.freedesktop.org
> Signed-off-by: Lee Jones <lee.jones@...aro.org>
Reviewed-by: Abhinav Kumar <abhinavk@...eaurora.org>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> index 37c8270681c23..36927fc04a388 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> @@ -110,14 +110,11 @@ static void _dpu_core_perf_calc_crtc(struct 
> dpu_kms *kms,
>  		struct drm_crtc_state *state,
>  		struct dpu_core_perf_params *perf)
>  {
> -	struct dpu_crtc_state *dpu_cstate;
> -
>  	if (!kms || !kms->catalog || !crtc || !state || !perf) {
>  		DPU_ERROR("invalid parameters\n");
>  		return;
>  	}
> 
> -	dpu_cstate = to_dpu_crtc_state(state);
>  	memset(perf, 0, sizeof(struct dpu_core_perf_params));
> 
>  	if (kms->perf.perf_tune.mode == DPU_PERF_MODE_MINIMUM) {