update_ctrl
} update_ctrl;
static void __set_target_state(struct update_ctrl *ctrl,
static void ack_state(struct update_ctrl *ctrl, int result)
static void init_state(struct update_ctrl *ctrl)
newstate = READ_ONCE(update_ctrl.state);
ack_state(&update_ctrl, ret);
!READ_ONCE(update_ctrl.num_failed));
init_state(&update_ctrl);