Re: [PATCH 15/21] drm/omap: Nuke close hooks

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

Hi Daniel,

Thank you for the patch.

On Friday 08 January 2016 21:36:47 Daniel Vetter wrote:
> Again since the core takes care of this we can remove them. While at
> it also remove the postclose hook, it's empty.
>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> ---
>  drivers/gpu/drm/omapdrm/omap_drv.c | 29 -----------------------------
>  1 file changed, 29 deletions(-)
> 
> diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c
> b/drivers/gpu/drm/omapdrm/omap_drv.c index dfafdb602ad2..e8b5080f6e2d
> 100644
> --- a/drivers/gpu/drm/omapdrm/omap_drv.c
> +++ b/drivers/gpu/drm/omapdrm/omap_drv.c
> @@ -787,33 +787,6 @@ static void dev_lastclose(struct drm_device *dev)
>  	}
>  }
> 
> -static void dev_preclose(struct drm_device *dev, struct drm_file *file)
> -{
> -	struct omap_drm_private *priv = dev->dev_private;
> -	struct drm_pending_event *event;
> -	unsigned long flags;
> -
> -	DBG("preclose: dev=%p", dev);
> -
> -	/*
> -	 * Unlink all pending CRTC events to make sure they won't be queued up
> -	 * by a pending asynchronous commit.
> -	 */
> -	spin_lock_irqsave(&dev->event_lock, flags);
> -	list_for_each_entry(event, &priv->commit.events, link) {
> -		if (event->file_priv == file) {
> -			file->event_space += event->event->length;
> -			event->file_priv = NULL;
> -		}
> -	}
> -	spin_unlock_irqrestore(&dev->event_lock, flags);
> -}
> -
> -static void dev_postclose(struct drm_device *dev, struct drm_file *file)
> -{
> -	DBG("postclose: dev=%p, file=%p", dev, file);
> -}
> -

You can also nuke the following code from omap_atomic_commit():

        /* Keep track of all CRTC events to unlink them in preclose(). */
        spin_lock_irqsave(&dev->event_lock, flags);
        for (i = 0; i < dev->mode_config.num_crtc; ++i) {
                struct drm_crtc_state *cstate = state->crtc_states[i];

                if (cstate && cstate->event)
                        list_add_tail(&cstate->event->base.link,
                                      &priv->commit.events);
        }
        spin_unlock_irqrestore(&dev->event_lock, flags);

and the priv->commit.events field in omap_drv.h (don't forget the structure 
kerneldoc).

>  static const struct vm_operations_struct omap_gem_vm_ops = {
>  	.fault = omap_gem_fault,
>  	.open = drm_gem_vm_open,
> @@ -838,8 +811,6 @@ static struct drm_driver omap_drm_driver = {
>  	.unload = dev_unload,
>  	.open = dev_open,
>  	.lastclose = dev_lastclose,
> -	.preclose = dev_preclose,
> -	.postclose = dev_postclose,
>  	.set_busid = drm_platform_set_busid,
>  	.get_vblank_counter = drm_vblank_no_hw_counter,
>  	.enable_vblank = omap_irq_enable_vblank,

-- 
Regards,

Laurent Pinchart

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