[PATCH 4.18 189/197] drm/amdgpu: Dont warn on destroying a pinned BO

From: Greg Kroah-Hartman
Date: Thu Sep 13 2018 - 10:06:58 EST


4.18-stable review patch. If anyone has any objections, please let me know.

------------------

From: Michel DÃnzer <michel.daenzer@xxxxxxx>

commit 456607d816d89a442a3d5ec98b02c8bc950b5228 upstream.

The warning turned out to be not so useful, as BO destruction tends to
be deferred to a workqueue.

Also, we should be preventing any damage from this now, so not really
important anymore to fix code doing this.

Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
Tested-by: Mike Lothian <mike@xxxxxxxxxxxxxx>
Signed-off-by: Michel DÃnzer <michel.daenzer@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -76,7 +76,7 @@ static void amdgpu_ttm_bo_destroy(struct
struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev);
struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);

- if (WARN_ON_ONCE(bo->pin_count > 0))
+ if (bo->pin_count > 0)
amdgpu_bo_subtract_pin_size(bo);

if (bo->kfd_bo)