linux-kernel - Re: [PATCH v2 -next] drm/amdgpu: remove set but not used variable 'ring'

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Date:   Thu, 15 Nov 2018 15:36:57 -0500
From:   Alex Deucher <alexdeucher@...il.com>
To:     yuehaibing@...wei.com
Cc:     "Deucher, Alexander" <alexander.deucher@....com>,
        Christian Koenig <christian.koenig@....com>,
        Chunming Zhou <David1.Zhou@....com>,
        Dave Airlie <airlied@...ux.ie>,
        Shaoyun Liu <Shaoyun.Liu@....com>,
        David Francis <David.Francis@....com>,
        Huang Rui <ray.huang@....com>, Feifei Xu <Feifei.Xu@....com>,
        Likun Gao <Likun.Gao@....com>,
        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>, kernel-janitors@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>
Subject: Re: [PATCH v2 -next] drm/amdgpu: remove set but not used variable 'ring'

On Thu, Nov 15, 2018 at 11:12 AM YueHaibing <yuehaibing@...wei.com> wrote:
>
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/gpu/drm/amd/amdgpu/psp_v10_0.c: In function 'psp_v10_0_ring_stop':
> drivers/gpu/drm/amd/amdgpu/psp_v10_0.c:230:19: warning:
>  variable 'ring' set but not used [-Wunused-but-set-variable]
>
> drivers/gpu/drm/amd/amdgpu/psp_v3_1.c: In function 'psp_v3_1_ring_stop':
> drivers/gpu/drm/amd/amdgpu/psp_v3_1.c:359:19: warning:
>  variable ‘ring’ set but not used [-Wunused-but-set-variable]
>
> It not used since commit
> 4ef72453311a ("drm/amdgpu: added api for stopping psp ring (v2)")
>
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> Reviewed-by: Huang Rui <ray.huang@....com>

Applied.  thanks!

> ---
> v2:also remove it in psp_v3_1_ring_stop
> ---
>  drivers/gpu/drm/amd/amdgpu/psp_v10_0.c | 3 ---
>  drivers/gpu/drm/amd/amdgpu/psp_v3_1.c  | 3 ---
>  2 files changed, 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
> index 295c220..d78b430 100644
> --- a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
> @@ -240,12 +240,9 @@ static int psp_v10_0_ring_stop(struct psp_context *psp,
>                                enum psp_ring_type ring_type)
>  {
>         int ret = 0;
> -       struct psp_ring *ring;
>         unsigned int psp_ring_reg = 0;
>         struct amdgpu_device *adev = psp->adev;
>
> -       ring = &psp->km_ring;
> -
>         /* Write the ring destroy command to C2PMSG_64 */
>         psp_ring_reg = 3 << 16;
>         WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
> diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
> index e1ebf77..cc5e3ac 100644
> --- a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
> +++ b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
> @@ -356,12 +356,9 @@ static int psp_v3_1_ring_stop(struct psp_context *psp,
>                               enum psp_ring_type ring_type)
>  {
>         int ret = 0;
> -       struct psp_ring *ring;
>         unsigned int psp_ring_reg = 0;
>         struct amdgpu_device *adev = psp->adev;
>
> -       ring = &psp->km_ring;
> -
>         /* Write the ring destroy command to C2PMSG_64 */
>         psp_ring_reg = 3 << 16;
>         WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
> --
> 2.7.0
>
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx

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