[PATCH v2] drm/atomic: allow no-op FB_ID updates for async flips

[André Almeida]

Em 31/07/2024 16:10, Simon Ser escreveu:
> User-space is allowed to submit any property in an async flip as
> long as the value doesn't change. However we missed one case:
> as things stand, the kernel rejects no-op FB_ID changes on
> non-primary planes. Fix this by changing the conditional and
> skipping drm_atomic_check_prop_changes() only for FB_ID on the
> primary plane (instead of skipping for FB_ID on any plane).
> 
> Fixes: 0e26cc72c71c ("drm: Refuse to async flip with atomic prop changes")
> Signed-off-by: Simon Ser <contact at emersion.fr>
> Reviewed-by: André Almeida <andrealmeid at igalia.com>
> Tested-by: Xaver Hugl <xaver.hugl at kde.org>
> Cc: Alex Deucher <alexander.deucher at amd.com>
> Cc: Christian König <christian.koenig at amd.com>
> Cc: Michel Dänzer <michel.daenzer at mailbox.org>
> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
> 
> André, can you confirm that the R-b still holds?
> 

Yes, it still holds