diff options
Diffstat (limited to 'drivers/ata/libata-scsi.c')
| -rw-r--r-- | drivers/ata/libata-scsi.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 06a3d95ed8f9..cbb3a7a50816 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -188,6 +188,22 @@ DEVICE_ATTR(unload_heads, S_IRUGO | S_IWUSR, ata_scsi_park_show, ata_scsi_park_store); EXPORT_SYMBOL_GPL(dev_attr_unload_heads); +bool ata_scsi_sense_is_valid(u8 sk, u8 asc, u8 ascq) +{ + /* + * If sk == NO_SENSE, and asc + ascq == NO ADDITIONAL SENSE INFORMATION, + * then there is no sense data to add. + */ + if (sk == 0 && asc == 0 && ascq == 0) + return false; + + /* If sk > COMPLETED, sense data is bogus. */ + if (sk > COMPLETED) + return false; + + return true; +} + void ata_scsi_set_sense(struct ata_device *dev, struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq) { @@ -642,7 +658,7 @@ static struct ata_queued_cmd *ata_scsi_qc_new(struct ata_device *dev, struct ata_queued_cmd *qc; int tag; - if (unlikely(ap->pflags & ATA_PFLAG_FROZEN)) + if (unlikely(ata_port_is_frozen(ap))) goto fail; if (ap->flags & ATA_FLAG_SAS_HOST) { |