1578 static int null_poll(struct blk_mq_hw_ctx *hctx, struct io_comp_batch *iob)  in null_poll()  argument
1580 	struct nullb_queue *nq = hctx->driver_data;  in null_poll()
1611 	struct blk_mq_hw_ctx *hctx = rq->mq_hctx;  in null_timeout_rq()  local
1614 	if (hctx->type == HCTX_TYPE_POLL) {  in null_timeout_rq()
1615 		struct nullb_queue *nq = hctx->driver_data;  in null_timeout_rq()
1637 	if (cmd->fake_timeout || hctx->type == HCTX_TYPE_POLL)  in null_timeout_rq()
1642 static blk_status_t null_queue_rq(struct blk_mq_hw_ctx *hctx,  in null_queue_rq()  argument
1647 	struct nullb_queue *nq = hctx->driver_data;  in null_queue_rq()
1650 	const bool is_poll = hctx->type == HCTX_TYPE_POLL;  in null_queue_rq()
1652 	might_sleep_if(hctx->flags & BLK_MQ_F_BLOCKING);  in null_queue_rq()
1722 static int null_init_hctx(struct blk_mq_hw_ctx *hctx, void *driver_data,  in null_init_hctx()  argument
1725 	struct nullb *nullb = hctx->queue->queuedata;  in null_init_hctx()
1732 	hctx->driver_data = nq;  in null_init_hctx()