Am 02.01.21 um 15:02 schrieb Bas Nieuwenhuizen:
With modifiers one can actually have different format_info structs for the same format, which now matters for AMDGPU since we convert implicit modifiers to explicit modifiers with multiple planes.
I checked other drivers and it doesn't look like they end up triggering this case so I think this is safe to relax.
Signed-off-by: Bas Nieuwenhuizen bas@basnieuwenhuizen.nl Fixes: 816853f9dc40 ("drm/amd/display: Set new format info for converted metadata.")
I don't know the details of the code at all, but from a high level point of view that makes much more sense than the original patch.
Acked-by: Christian König christian.koenig@amd.com
drivers/gpu/drm/drm_plane.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index e6231947f987..f5085990cfac 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -1163,7 +1163,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, if (ret) goto out;
- if (old_fb->format != fb->format) {
- if (old_fb->format->format != fb->format->format) { DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); ret = -EINVAL; goto out;