linux-kernel - Re: [PATCH][next] drm/amdgpu: remove redundant assignment to pointer write_frame

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Message-ID: <CADnq5_OGNUUvixju5qJf7Q_iYu--LAD3LWhXB4pkQFpjS5HpMQ@mail.gmail.com>
Date:   Thu, 21 Nov 2019 13:35:59 -0500
From:   Alex Deucher <alexdeucher@...il.com>
To:     Colin King <colin.king@...onical.com>
Cc:     Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        David Zhou <David1.Zhou@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>, kernel-janitors@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH][next] drm/amdgpu: remove redundant assignment to pointer write_frame

Applied.  thanks!

Alex

On Thu, Nov 21, 2019 at 11:54 AM Colin King <colin.king@...onical.com> wrote:
>
> From: Colin Ian King <colin.king@...onical.com>
>
> The pointer write_frame is being initialized with a value that is
> never read and it is being updated later with a new value. The
> initialization is redundant and can be removed.
>
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
> index 2a8a08aa6eaf..c02f9ffe5c6b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
> @@ -1728,7 +1728,7 @@ int psp_ring_cmd_submit(struct psp_context *psp,
>                         int index)
>  {
>         unsigned int psp_write_ptr_reg = 0;
> -       struct psp_gfx_rb_frame *write_frame = psp->km_ring.ring_mem;
> +       struct psp_gfx_rb_frame *write_frame;
>         struct psp_ring *ring = &psp->km_ring;
>         struct psp_gfx_rb_frame *ring_buffer_start = ring->ring_mem;
>         struct psp_gfx_rb_frame *ring_buffer_end = ring_buffer_start +
> --
> 2.24.0
>
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> dri-devel@...ts.freedesktop.org
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