linux-kernel - Re: [PATCH] drm/rockchip: Remove unused variable

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Message-ID: <YFU/6Hm1CuVL8MlO@pendragon.ideasonboard.com>
Date:   Sat, 20 Mar 2021 02:20:56 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Maxime Ripard <maxime@...no.tech>
Cc:     dri-devel@...ts.freedesktop.org,
        Daniel Vetter <daniel.vetter@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Daniel Vetter <daniel@...ll.ch>,
        Heiko Stübner <heiko@...ech.de>,
        Sandy Huang <hjc@...k-chips.com>,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH] drm/rockchip: Remove unused variable

Hi Maxime,

Thank you for the patch.

On Fri, Mar 19, 2021 at 04:29:20PM +0100, Maxime Ripard wrote:
> Commit 977697e20b3d ("drm/atomic: Pass the full state to planes atomic
> disable and update") added the old_state variable instead of what used
> to be a parameter, but it also removed the sole user of that variable in
> the vop_plane_atomic_update function leading to an usused variable.
> Remove it.
> 
> Fixes: 977697e20b3d ("drm/atomic: Pass the full state to planes atomic disable and update")
> Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
> Signed-off-by: Maxime Ripard <maxime@...no.tech>

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

> ---
>  drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index 81c70d7a0471..64469439ddf2 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -879,8 +879,6 @@ static void vop_plane_atomic_disable(struct drm_plane *plane,
>  static void vop_plane_atomic_update(struct drm_plane *plane,
>  		struct drm_atomic_state *state)
>  {
> -	struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
> -									   plane);
>  	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
>  									   plane);
>  	struct drm_crtc *crtc = new_state->crtc;

-- 
Regards,

Laurent Pinchart