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From:   Alex Deucher <alexdeucher@gmail.com>
Date:   Wed, 29 Jul 2020 18:00:03 -0400
Message-ID: <CADnq5_P7VBe5e1U_e=bfbnhNZg+6matA8urRKUx77bTUPCp+qw@mail.gmail.com>
Subject: Re: [PATCH -next] drm/amd/powerplay: Remove unneeded cast from memory allocation
To:     Li Heng <liheng40@huawei.com>
Cc:     Dave Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
        Maling list - DRI developers 
        <dri-devel@lists.freedesktop.org>,
        amd-gfx list <amd-gfx@lists.freedesktop.org>,
        LKML <linux-kernel@vger.kernel.org>
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Applied.  Thanks!

Alex

On Wed, Jul 29, 2020 at 9:11 AM Li Heng <liheng40@huawei.com> wrote:
>
> Remove casting the values returned by memory allocation function.
>
> Coccinelle emits WARNING:
>
> ./drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c:893:37-46: WARNING: casting value returned by memory allocation function to (PPTable_t *) is useless.
>
> Signed-off-by: Li Heng <liheng40@huawei.com>
> ---
>  drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c
> index 7a7f15d..f56a3cb 100644
> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c
> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c
> @@ -890,7 +890,7 @@ static int init_powerplay_table_information(
>                                 power_saving_clock_count);
>         }
>
> -       pptable_information->smc_pptable = (PPTable_t *)kmalloc(sizeof(PPTable_t), GFP_KERNEL);
> +       pptable_information->smc_pptable = kmalloc(sizeof(PPTable_t), GFP_KERNEL);
>         if (pptable_information->smc_pptable == NULL)
>                 return -ENOMEM;
>
> --
> 2.7.4
>
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