Re: [PATCH] drm/atomic-helpers: Clear up cleanup_done a bit

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On Wed, Jun 15, 2016 at 12:24:26PM +0200, Daniel Vetter wrote:
> It's not obvious at first sight that this is a fastpath, make that
> clearer with a goto. Fallout from a discussion with Liviu on irc.
> 
> v2: Drop bogus hunks that crept in.
> 
> Cc: Liviu.Dudau@xxxxxxx
> Acked-by: Liviu.Dudau@xxxxxxx
> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
> ---
>  drivers/gpu/drm/drm_atomic_helper.c | 8 +++-----
>  1 file changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> index 716aa535eb98..0556c95b7ddb 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -1579,11 +1579,8 @@ void drm_atomic_helper_commit_cleanup_done(struct drm_atomic_state *state)
>  		/* commit_list borrows our reference, need to remove before we
>  		 * clean up our drm_atomic_state. But only after it actually
>  		 * completed, otherwise subsequent commits won't stall properly. */
> -		if (try_wait_for_completion(&commit->flip_done)) {
> -			list_del(&commit->commit_entry);
> -			spin_unlock(&crtc->commit_lock);
> -			continue;
> -		}
> +		if (try_wait_for_completion(&commit->flip_done))
> +			goto del_commit:

s/:/;/

Liviu

>  
>  		spin_unlock(&crtc->commit_lock);
>  
> @@ -1597,6 +1594,7 @@ void drm_atomic_helper_commit_cleanup_done(struct drm_atomic_state *state)
>  				  crtc->base.id, crtc->name);
>  
>  		spin_lock(&crtc->commit_lock);
> +del_commit:
>  		list_del(&commit->commit_entry);
>  		spin_unlock(&crtc->commit_lock);
>  	}
> -- 
> 2.8.1
> 

-- 
====================
| I would like to |
| fix the world,  |
| but they're not |
| giving me the   |
 \ source code!  /
  ---------------
    ¯\_(ツ)_/¯
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