net/core/dev.c

2375 	map = xmap_dereference(dev_maps->attr_map[tci]);
2389 			RCU_INIT_POINTER(old_maps->attr_map[tci], NULL);
2390 		RCU_INIT_POINTER(dev_maps->attr_map[tci], NULL);
2533 		map = xmap_dereference(dev_maps->attr_map[tci]);
2534 		RCU_INIT_POINTER(new_dev_maps->attr_map[tci], map);
2606 		map = copy ? xmap_dereference(dev_maps->attr_map[tci]) : NULL;
2612 		RCU_INIT_POINTER(new_dev_maps->attr_map[tci], map);
2636 			map = xmap_dereference(new_dev_maps->attr_map[tci]);
2665 			map = xmap_dereference(dev_maps->attr_map[tci]);
2670 				new_map = xmap_dereference(new_dev_maps->attr_map[tci]);
2675 			RCU_INIT_POINTER(dev_maps->attr_map[tci], NULL);
2727 			new_map = xmap_dereference(new_dev_maps->attr_map[tci]);
2729 			      xmap_dereference(dev_maps->attr_map[tci]) :
4103 	map = rcu_dereference(dev_maps->attr_map[tci]);