drm_mm_hole_node_start
unsigned long hole_start = drm_mm_hole_node_start(hole_node);
unsigned long hole_start = drm_mm_hole_node_start(hole_node);
BUG_ON(drm_mm_hole_node_start(node)
BUG_ON(drm_mm_hole_node_start(node)
unsigned long adj_start = drm_mm_hole_node_start(entry);
unsigned long adj_start = drm_mm_hole_node_start(entry) < start ?
start : drm_mm_hole_node_start(entry);
adj_start = hole_start = drm_mm_hole_node_start(prev_node);
hole_start = drm_mm_hole_node_start(&mm->head_node);
hole_start = drm_mm_hole_node_start(entry);