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

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Date:   Wed, 27 Feb 2019 21:47:23 -0500
From:   Alex Deucher <alexdeucher@...il.com>
To:     YueHaibing <yuehaibing@...wei.com>
Cc:     "Deucher, Alexander" <alexander.deucher@....com>,
        Christian Koenig <christian.koenig@....com>,
        Chunming Zhou <David1.Zhou@....com>,
        Dave Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        Kees Cook <keescook@...omium.org>, Rex Zhu <Rex.Zhu@....com>,
        "Quan, Evan" <evan.quan@....com>, Huang Rui <ray.huang@....com>,
        kernel-janitors@...r.kernel.org,
        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] drm/amdgpu: remove set but not used variable 'vbi_time_out'

Applied.  thanks!

On Tue, Feb 26, 2019 at 12:36 AM YueHaibing <yuehaibing@...wei.com> wrote:
>
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/gpu/drm/amd/amdgpu/si_dpm.c: In function 'si_program_response_times':
> drivers/gpu/drm/amd/amdgpu/si_dpm.c:4101:29: warning:
>  variable 'backbias_response_time' set but not used [-Wunused-but-set-variable]
>
> It's never used since introduction in 841686df9f7d ("drm/amdgpu: add SI DPM
> support (v4)"), so can be removed
>
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/si_dpm.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/si_dpm.c b/drivers/gpu/drm/amd/amdgpu/si_dpm.c
> index 41e01a7f57a4..d57e75e5c71f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/si_dpm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/si_dpm.c
> @@ -4098,14 +4098,13 @@ static int si_notify_smc_display_change(struct amdgpu_device *adev,
>
>  static void si_program_response_times(struct amdgpu_device *adev)
>  {
> -       u32 voltage_response_time, backbias_response_time, acpi_delay_time, vbi_time_out;
> +       u32 voltage_response_time, acpi_delay_time, vbi_time_out;
>         u32 vddc_dly, acpi_dly, vbi_dly;
>         u32 reference_clock;
>
>         si_write_smc_soft_register(adev, SI_SMC_SOFT_REGISTER_mvdd_chg_time, 1);
>
>         voltage_response_time = (u32)adev->pm.dpm.voltage_response_time;
> -       backbias_response_time = (u32)adev->pm.dpm.backbias_response_time;
>
>         if (voltage_response_time == 0)
>                 voltage_response_time = 1000;
>
>
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx

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