init_irq_work
init_irq_work(©_work->irq_work, __memcpy_irq_work);
init_irq_work(&b->irq_work, signal_irq_work);
init_irq_work(&rq->submit_work, submit_work_cb);
init_irq_work(&cb->work, irq_execute_cb);
init_irq_work(&timer->work, irq_i915_sw_fence_work);