uvm_device
struct uvm_device *udv = (struct uvm_device *)uobj;
struct uvm_device *udv = (struct uvm_device *)uobj;
LIST_HEAD(, uvm_device) udv_list = LIST_HEAD_INITIALIZER(udv_list);
struct uvm_device *udv, *lcv;
LIST_ENTRY(uvm_device) u_list; /* list of device objects */
struct uvm_device uvm_device;
S(&kdev) = sizeof(struct uvm_device);
dev = D(&kdev, uvm_device)->u_device;