Re: [PATCH v3 6/7] drm/atomic: Convert get_existing_state callers to get_old/new_state, v2.

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Hi Maarten,

Thank you for the patch.

I don't think you need the "v2" at the end of the subject line.

On Monday 16 Jan 2017 10:37:43 Maarten Lankhorst wrote:
> This is a straightforward conversion that converts all the users of
> get_existing_state in atomic core to use get_old_state or get_new_state
> 
> Changes since v1:
> - Fix using the wrong state in
> drm_atomic_helper_update_legacy_modeset_state.
> 
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/drm_atomic.c        |  6 +++---
>  drivers/gpu/drm/drm_atomic_helper.c | 39 +++++++++++++++------------------
>  drivers/gpu/drm/drm_blend.c         |  3 +--
>  3 files changed, 22 insertions(+), 26 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
> index 7b61e0da9ace..6428e9469607 100644
> --- a/drivers/gpu/drm/drm_atomic.c
> +++ b/drivers/gpu/drm/drm_atomic.c

[snip]

> @@ -1835,7 +1832,7 @@ drm_atomic_helper_commit_planes_on_crtc(struct
> drm_crtc_state *old_crtc_state)
> 
>  	drm_for_each_plane_mask(plane, crtc->dev, plane_mask) {
>  		struct drm_plane_state *old_plane_state =
> -			drm_atomic_get_existing_plane_state(old_state, plane);
> +			drm_atomic_get_old_plane_state(old_state, plane);

I believe this change to be correct, but given that the function is called 
after state swap, didn't it use the new state before this patch ?

>  		const struct drm_plane_helper_funcs *plane_funcs;
> 
>  		plane_funcs = plane->helper_private;

-- 
Regards,

Laurent Pinchart

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