linux-kernel - Re: [PATCH v2] drm: fix error found in some cases after the patch d1af5cd86997

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Message-ID: <YcBKbn/9oqD2taCk@phenom.ffwll.local>
Date:   Mon, 20 Dec 2021 10:18:38 +0100
From:   Daniel Vetter <daniel@...ll.ch>
To:     Claudio Suarez <cssk@...-c.es>
Cc:     dri-devel@...ts.freedesktop.org, 0day robot <lkp@...el.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...ux.ie>
Subject: Re: [PATCH v2] drm: fix error found in some cases after the patch
 d1af5cd86997

On Thu, Dec 02, 2021 at 10:51:12AM +0100, Claudio Suarez wrote:
> The patch d1af5cd86997 ("drm: get rid of DRM_DEBUG_* log
> calls in drm core, files drm_a*.c") fails when the drm_device
> cannot be found in the parameter plane_state->crtc.
> Fix it using plane_state->plane.
> 
> Reported-by: kernel test robot <oliver.sang@...el.com>
> Fixes: d1af5cd86997 ("drm: get rid of DRM_DEBUG_* log calls in drm core, files drm_a*.c")
> Signed-off-by: Claudio Suarez <cssk@...-c.es>

Sorry I missed these two patches, but both applied now, thanks.
-Daniel

> ---
>  drivers/gpu/drm/drm_atomic_helper.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> index aef2fbd676e5..a7a05e1e26bb 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -828,8 +828,8 @@ int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state,
>  	}
>  
>  	if (!crtc_state->enable && !can_update_disabled) {
> -		drm_dbg_kms(plane_state->crtc->dev,
> -			       "Cannot update plane of a disabled CRTC.\n");
> +		drm_dbg_kms(plane_state->plane->dev,
> +			    "Cannot update plane of a disabled CRTC.\n");
>  		return -EINVAL;
>  	}
>  
> @@ -839,8 +839,8 @@ int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state,
>  	hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale);
>  	vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale);
>  	if (hscale < 0 || vscale < 0) {
> -		drm_dbg_kms(plane_state->crtc->dev,
> -			       "Invalid scaling of plane\n");
> +		drm_dbg_kms(plane_state->plane->dev,
> +			    "Invalid scaling of plane\n");
>  		drm_rect_debug_print("src: ", &plane_state->src, true);
>  		drm_rect_debug_print("dst: ", &plane_state->dst, false);
>  		return -ERANGE;
> @@ -864,8 +864,8 @@ int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state,
>  		return 0;
>  
>  	if (!can_position && !drm_rect_equals(dst, &clip)) {
> -		drm_dbg_kms(plane_state->crtc->dev,
> -			       "Plane must cover entire CRTC\n");
> +		drm_dbg_kms(plane_state->plane->dev,
> +			    "Plane must cover entire CRTC\n");
>  		drm_rect_debug_print("dst: ", dst, false);
>  		drm_rect_debug_print("clip: ", &clip, false);
>  		return -EINVAL;
> -- 
> 2.33.0
> 
> 
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch