[PATCH] drm/ttm: soften TTM warnings

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QXL indeed unrefs pinned BOs and the warnings are spamming peoples log files.

Make sure we warn only once until the QXL driver is fixed.

Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
 drivers/gpu/drm/ttm/ttm_bo.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 20a25660b35b..245fa2c05927 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -136,7 +136,8 @@ void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo,
 	struct ttm_bo_device *bdev = bo->bdev;
 	struct ttm_resource_manager *man;
 
-	dma_resv_assert_held(bo->base.resv);
+	if (!bo->deleted)
+		dma_resv_assert_held(bo->base.resv);
 
 	if (bo->pin_count) {
 		ttm_bo_del_from_lru(bo);
@@ -509,7 +510,7 @@ static void ttm_bo_release(struct kref *kref)
 		 * shrinkers, now that they are queued for
 		 * destruction.
 		 */
-		if (WARN_ON(bo->pin_count)) {
+		if (WARN_ON_ONCE(bo->pin_count)) {
 			bo->pin_count = 0;
 			ttm_bo_move_to_lru_tail(bo, &bo->mem, NULL);
 		}
-- 
2.25.1

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