diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 9ef5b8ab5b15608a77e2b68436f8b7606a02330f..0eb75e2dc0e22b09c10d373f2d6ac47e6dd67eba 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -3849,79 +3849,6 @@ static void ata_pio_task(void *_data) goto fsm_start; } -/** - * atapi_packet_task - Write CDB bytes to hardware - * @_data: Port to which ATAPI device is attached. - * - * When device has indicated its readiness to accept - * a CDB, this function is called. Send the CDB. - * If DMA is to be performed, exit immediately. - * Otherwise, we are in polling mode, so poll - * status under operation succeeds or fails. - * - * LOCKING: - * Kernel thread context (may sleep) - */ - -static void atapi_packet_task(void *_data) -{ - struct ata_port *ap = _data; - struct ata_queued_cmd *qc; - u8 status; - - qc = ata_qc_from_tag(ap, ap->active_tag); - WARN_ON(qc == NULL); - WARN_ON(!(qc->flags & ATA_QCFLAG_ACTIVE)); - - /* sleep-wait for BSY to clear */ - DPRINTK("busy wait\n"); - if (ata_busy_sleep(ap, ATA_TMOUT_CDB_QUICK, ATA_TMOUT_CDB)) { - qc->err_mask |= AC_ERR_TIMEOUT; - goto err_out; - } - - /* make sure DRQ is set */ - status = ata_chk_status(ap); - if ((status & (ATA_BUSY | ATA_DRQ)) != ATA_DRQ) { - qc->err_mask |= AC_ERR_HSM; - goto err_out; - } - - /* send SCSI cdb */ - DPRINTK("send cdb\n"); - WARN_ON(qc->dev->cdb_len < 12); - - if (qc->tf.protocol == ATA_PROT_ATAPI_DMA || - qc->tf.protocol == ATA_PROT_ATAPI_NODATA) { - unsigned long flags; - - /* Once we're done issuing command and kicking bmdma, - * irq handler takes over. To not lose irq, we need - * to clear NOINTR flag before sending cdb, but - * interrupt handler shouldn't be invoked before we're - * finished. Hence, the following locking. - */ - spin_lock_irqsave(&ap->host_set->lock, flags); -#warning FIXME - /* ap->flags &= ~ATA_FLAG_NOINTR; */ - ata_data_xfer(ap, qc->cdb, qc->dev->cdb_len, 1); - if (qc->tf.protocol == ATA_PROT_ATAPI_DMA) - ap->ops->bmdma_start(qc); /* initiate bmdma */ - spin_unlock_irqrestore(&ap->host_set->lock, flags); - } else { - ata_data_xfer(ap, qc->cdb, qc->dev->cdb_len, 1); - - /* PIO commands are handled by polling */ - ap->hsm_task_state = HSM_ST; - ata_port_queue_task(ap, ata_pio_task, ap, 0); - } - - return; - -err_out: - ata_poll_qc_complete(qc); -} - /** * ata_qc_timeout - Handle timeout of queued command * @qc: Command that timed out