[Intel-xe] [PATCH 4/5] drm/xe: Combine destroy_cb and destroy_work in xe_vma into union

[Matthew Brost]

The callback kicks the worker thus mutually exclusive execution,
combining saves a bit of space in xe_vma.

Signed-off-by: Matthew Brost <matthew.brost at intel.com>
---
 drivers/gpu/drm/xe/xe_vm_types.h | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_vm_types.h b/drivers/gpu/drm/xe/xe_vm_types.h
index 2a8691a48c55..30beae541aca 100644
--- a/drivers/gpu/drm/xe/xe_vm_types.h
+++ b/drivers/gpu/drm/xe/xe_vm_types.h
@@ -51,11 +51,12 @@ struct xe_vma {
 		struct list_head destroy;
 	} combined_links;
 
-	/** @destroy_cb: callback to destroy VMA when unbind job is done */
-	struct dma_fence_cb destroy_cb;
-
-	/** @destroy_work: worker to destroy this BO */
-	struct work_struct destroy_work;
+	union {
+		/** @destroy_cb: callback to destroy VMA when unbind job is done */
+		struct dma_fence_cb destroy_cb;
+		/** @destroy_work: worker to destroy this BO */
+		struct work_struct destroy_work;
+	};
 
 	/** @userptr: user pointer state */
 	struct {
-- 
2.34.1