linux-kernel - Re: [PATCH] drm/mediatek: mtk_dpi: Fix unused variable 'mtk_dpi_encoder

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Date:   Wed, 4 Nov 2020 11:40:29 +0100
From:   Enric Balletbo i Serra <enric.balletbo@...labora.com>
To:     linux-kernel@...r.kernel.org
Cc:     Collabora Kernel ML <kernel@...labora.com>, matthias.bgg@...il.com,
        drinkcat@...omium.org, hsinyi@...omium.org,
        kernel test robot <lkp@...el.com>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH] drm/mediatek: mtk_dpi: Fix unused variable
 'mtk_dpi_encoder_funcs'

Hi

On 5/10/20 18:22, Enric Balletbo i Serra wrote:
> Commit f89c696e7f63 ("drm/mediatek: mtk_dpi: Convert to bridge driver")
> introduced the following build warning with W=1
> 
>  drivers/gpu/drm/mediatek/mtk_dpi.c:530:39: warning: unused variable 'mtk_dpi_encoder_funcs' [-Wunused-const-variable]
>  static const struct drm_encoder_funcs mtk_dpi_encoder_funcs = {
> 
> This struct is and the 'mtk_dpi_encoder_destroy()' are not needed
> anymore, so remove them.
> 
> Fixes: f89c696e7f63 ("drm/mediatek: mtk_dpi: Convert to bridge driver")
> Reported-by: kernel test robot <lkp@...el.com>
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
> ---

A gentle ping on this small fix. Thanks,

  Enric

> 
>  drivers/gpu/drm/mediatek/mtk_dpi.c | 9 ---------
>  1 file changed, 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index 589ef33a1780..2609d917e3f9 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -522,15 +522,6 @@ static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
>  	return 0;
>  }
>  
> -static void mtk_dpi_encoder_destroy(struct drm_encoder *encoder)
> -{
> -	drm_encoder_cleanup(encoder);
> -}
> -
> -static const struct drm_encoder_funcs mtk_dpi_encoder_funcs = {
> -	.destroy = mtk_dpi_encoder_destroy,
> -};
> -
>  static int mtk_dpi_bridge_attach(struct drm_bridge *bridge,
>  				 enum drm_bridge_attach_flags flags)
>  {
>