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| author | Brian King <brking@us.ibm.com> | 2006-03-24 00:30:02 +0100 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-03-24 16:18:43 +0100 |
| commit | eb3f0f9c6c3416016565c8b91644d7386889e565 (patch) | |
| tree | 2b9d7baee57bcae271f5708fc5c09cc71a8698a4 /drivers | |
| parent | [libata] export ata_dev_pair; trim trailing whitespace (diff) | |
| download | linux-eb3f0f9c6c3416016565c8b91644d7386889e565.tar.xz linux-eb3f0f9c6c3416016565c8b91644d7386889e565.zip | |
[PATCH] libata: ata_scsi_queuecmd cleanup
Encapsulate part of ata_scsi_queuecmd so that it can be
reused by future SAS patches.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/libata-scsi.c | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index b7df37ed4393..8192ddd62974 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -2597,6 +2597,21 @@ static inline void ata_scsi_dump_cdb(struct ata_port *ap, #endif } +static inline void __ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *), + struct ata_port *ap, struct ata_device *dev) +{ + if (dev->class == ATA_DEV_ATA) { + ata_xlat_func_t xlat_func = ata_get_xlat_func(dev, + cmd->cmnd[0]); + + if (xlat_func) + ata_scsi_translate(ap, dev, cmd, done, xlat_func); + else + ata_scsi_simulate(ap, dev, cmd, done); + } else + ata_scsi_translate(ap, dev, cmd, done, atapi_xlat); +} + /** * ata_scsi_queuecmd - Issue SCSI cdb to libata-managed device * @cmd: SCSI command to be sent @@ -2631,24 +2646,13 @@ int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) ata_scsi_dump_cdb(ap, cmd); dev = ata_scsi_find_dev(ap, scsidev); - if (unlikely(!dev)) { + if (likely(dev)) + __ata_scsi_queuecmd(cmd, done, ap, dev); + else { cmd->result = (DID_BAD_TARGET << 16); done(cmd); - goto out_unlock; } - if (dev->class == ATA_DEV_ATA) { - ata_xlat_func_t xlat_func = ata_get_xlat_func(dev, - cmd->cmnd[0]); - - if (xlat_func) - ata_scsi_translate(ap, dev, cmd, done, xlat_func); - else - ata_scsi_simulate(ap, dev, cmd, done); - } else - ata_scsi_translate(ap, dev, cmd, done, atapi_xlat); - -out_unlock: spin_unlock(&ap->host_set->lock); spin_lock(shost->host_lock); return 0; |