wait_timer
u64 wait_timer : 8;
u64 wait_timer : 8;
struct wait_timer *wt = timer_container_of(wt, timer, timer);
struct wait_timer wt;
timer_setup_on_stack(&wt.timer, wait_timer, 0);
struct hrtimer wait_timer;
struct dwc2_qh *qh = container_of(t, struct dwc2_qh, wait_timer);
hrtimer_setup(&qh->wait_timer, &dwc2_wait_timer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
hrtimer_cancel(&qh->wait_timer);
hrtimer_start(&qh->wait_timer, delay, HRTIMER_MODE_REL);