diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/libata-core.c | 26 | ||||
| -rw-r--r-- | drivers/scsi/libata.h | 1 |
2 files changed, 22 insertions, 5 deletions
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 66df895c961..8fda8228159 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -5142,6 +5142,26 @@ static void ata_host_remove(struct ata_port *ap, unsigned int do_unregister) } /** + * ata_dev_init - Initialize an ata_device structure + * @dev: Device structure to initialize + * + * Initialize @dev in preparation for probing. + * + * LOCKING: + * Inherited from caller. + */ +void ata_dev_init(struct ata_device *dev) +{ + struct ata_port *ap = dev->ap; + + memset((void *)dev, 0, sizeof(*dev)); + dev->devno = dev - ap->device; + dev->pio_mask = UINT_MAX; + dev->mwdma_mask = UINT_MAX; + dev->udma_mask = UINT_MAX; +} + +/** * ata_host_init - Initialize an ata_port structure * @ap: Structure to initialize * @host: associated SCSI mid-layer structure @@ -5155,7 +5175,6 @@ static void ata_host_remove(struct ata_port *ap, unsigned int do_unregister) * LOCKING: * Inherited from caller. */ - static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host, struct ata_host_set *host_set, const struct ata_probe_ent *ent, unsigned int port_no) @@ -5199,10 +5218,7 @@ static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host, for (i = 0; i < ATA_MAX_DEVICES; i++) { struct ata_device *dev = &ap->device[i]; dev->ap = ap; - dev->devno = i; - dev->pio_mask = UINT_MAX; - dev->mwdma_mask = UINT_MAX; - dev->udma_mask = UINT_MAX; + ata_dev_init(dev); } #ifdef ATA_IRQ_TRAP diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h index d56d9e1d73d..c2b1c919b96 100644 --- a/drivers/scsi/libata.h +++ b/drivers/scsi/libata.h @@ -62,6 +62,7 @@ extern int ata_check_atapi_dma(struct ata_queued_cmd *qc); extern void ata_dev_select(struct ata_port *ap, unsigned int device, unsigned int wait, unsigned int can_sleep); extern void swap_buf_le16(u16 *buf, unsigned int buf_words); +extern void ata_dev_init(struct ata_device *dev); extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg); extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg); |