[Intel-gfx] [PATCH 1/2] drm/i915/overlay: Fix active retire callback alignment

[Ville Syrjälä]

On Thu, Apr 29, 2021 at 09:35:29AM +0100, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> 
> __i915_active_call annotation is required on the retire callback to ensure
> correct function alignment.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> Fixes: a21ce8ad12d2 ("drm/i915/overlay: Switch to using i915_active tracking")
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Matthew Auld <matthew.auld at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_overlay.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_overlay.c b/drivers/gpu/drm/i915/display/intel_overlay.c
> index fffbde4256db..428819ba18dd 100644
> --- a/drivers/gpu/drm/i915/display/intel_overlay.c
> +++ b/drivers/gpu/drm/i915/display/intel_overlay.c
> @@ -383,7 +383,7 @@ static void intel_overlay_off_tail(struct intel_overlay *overlay)
>  		i830_overlay_clock_gating(dev_priv, true);
>  }
>  
> -static void
> +__i915_active_call static void

Am I blind or are we just packing flag bits into a pointer, passing
that to a function, and then immediately unpack the bits again in
said function? Why not just pass the flags explicitly?

Looks like you missed auto_retire()?

>  intel_overlay_last_flip_retire(struct i915_active *active)
>  {
>  	struct intel_overlay *overlay =
> -- 
> 2.30.2
> 
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-- 
Ville Syrjälä
Intel