diff options
| author | Brian King <brking@us.ibm.com> | 2006-06-12 23:54:17 +0400 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-06-23 07:46:45 +0400 |
| commit | 99ba9e093d058f6dff54f475136018e2e281d50f (patch) | |
| tree | 8e69fbee21e413dc0f452cf3fb9bf3c383265c49 | |
| parent | ba6a13083c1b720a47c05bee7bedbb6ef06c4611 (diff) | |
| download | linux-99ba9e093d058f6dff54f475136018e2e281d50f.tar.xz | |
[PATCH] libata: Add ata_scsi_dev_disabled
Separate out parts of ata_scsi_find_dev to be reused in
future SAS/SATA patches.
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| -rw-r--r-- | drivers/scsi/libata-scsi.c | 41 |
1 files changed, 31 insertions, 10 deletions
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index d86abed62007..93d18a74c401 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -2374,6 +2374,36 @@ static struct ata_device * __ata_scsi_find_dev(struct ata_port *ap, } /** + * ata_scsi_dev_enabled - determine if device is enabled + * @dev: ATA device + * + * Determine if commands should be sent to the specified device. + * + * LOCKING: + * spin_lock_irqsave(host_set lock) + * + * RETURNS: + * 0 if commands are not allowed / 1 if commands are allowed + */ + +static int ata_scsi_dev_enabled(struct ata_device *dev) +{ + if (unlikely(!ata_dev_enabled(dev))) + return 0; + + if (!atapi_enabled || (dev->ap->flags & ATA_FLAG_NO_ATAPI)) { + if (unlikely(dev->class == ATA_DEV_ATAPI)) { + ata_dev_printk(dev, KERN_WARNING, + "WARNING: ATAPI is %s, device ignored.\n", + atapi_enabled ? "not supported with this driver" : "disabled"); + return 0; + } + } + + return 1; +} + +/** * ata_scsi_find_dev - lookup ata_device from scsi_cmnd * @ap: ATA port to which the device is attached * @scsidev: SCSI device from which we derive the ATA device @@ -2394,18 +2424,9 @@ ata_scsi_find_dev(struct ata_port *ap, const struct scsi_device *scsidev) { struct ata_device *dev = __ata_scsi_find_dev(ap, scsidev); - if (unlikely(!dev || !ata_dev_enabled(dev))) + if (unlikely(!dev || !ata_scsi_dev_enabled(dev))) return NULL; - if (!atapi_enabled || (ap->flags & ATA_FLAG_NO_ATAPI)) { - if (unlikely(dev->class == ATA_DEV_ATAPI)) { - ata_dev_printk(dev, KERN_WARNING, - "WARNING: ATAPI is %s, device ignored.\n", - atapi_enabled ? "not supported with this driver" : "disabled"); - return NULL; - } - } - return dev; } |