Separate out parts of ata_scsi_find_dev to be reused in
future SAS/SATA patches.
Signed-off-by: Brian King <brking@xxxxxxxxxx>
---
libata-dev-bjking1/drivers/scsi/libata-scsi.c | 40 ++++++++++++++++++++------
1 files changed, 31 insertions(+), 9 deletions(-)
diff -puN drivers/scsi/libata-scsi.c~libata_scsi_enabled drivers/scsi/libata-scsi.c
--- libata-dev/drivers/scsi/libata-scsi.c~libata_scsi_enabled 2006-04-13 14:45:58.000000000 -0500
+++ libata-dev-bjking1/drivers/scsi/libata-scsi.c 2006-04-13 14:45:58.000000000 -0500
@@ -2175,6 +2175,36 @@ static unsigned int atapi_xlat(struct at
}
/**
+ * ata_scsi_dev_enabled - determine if device is enabled
+ * @ap: ATA port to which the device is attached
+ * @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_port *ap, struct ata_device *dev)
+{
+ if (unlikely(!ata_dev_enabled(dev)))
+ return 0;
+
+ if (!atapi_enabled || (ap->flags & ATA_FLAG_NO_ATAPI)) {
+ if (unlikely(dev->class == ATA_DEV_ATAPI)) {
+ printk(KERN_WARNING "ata%u(%u): WARNING: ATAPI is %s, device ignored.\n",
+ ap->id, dev->devno, 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
@@ -2206,17 +2236,9 @@ ata_scsi_find_dev(struct ata_port *ap, c
(scsidev->lun != 0)))
return NULL;
- if (unlikely(!ata_dev_enabled(dev)))
+ if (unlikely(!ata_scsi_dev_enabled(ap, dev)))
return NULL;
- if (!atapi_enabled || (ap->flags & ATA_FLAG_NO_ATAPI)) {
- if (unlikely(dev->class == ATA_DEV_ATAPI)) {
- printk(KERN_WARNING "ata%u(%u): WARNING: ATAPI is %s, device ignored.\n",
- ap->id, dev->devno, atapi_enabled ? "not supported with this driver" : "disabled");
- return NULL;
- }
- }
-
return dev;
}
_
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