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authorTejun Heo <tj@kernel.org>2015-08-03 18:46:39 +0300
committerTejun Heo <tj@kernel.org>2015-08-03 19:01:54 +0300
commit74a80d67b8316eb3fbeb73dafc060a5a0a708587 (patch)
tree22a062046b8d158a729343842dbcf1961f4f0ba0 /drivers/ata/libata-eh.c
parent84ded2f8e7dda336fc2fb3570726ceb3b3b3590f (diff)
downloadlinux-74a80d67b8316eb3fbeb73dafc060a5a0a708587.tar.xz
Revert "libata: Implement NCQ autosense"
This reverts commit 42b966fbf35da9c87f08d98f9b8978edf9e717cf. As implemented, ACS-4 sense reporting for ATA devices bypasses error diagnosis and handling in libata degrading EH behavior significantly. Revert the related changes for now. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Hannes Reinecke <hare@suse.de> Cc: stable@vger.kernel.org #v4.1+
Diffstat (limited to 'drivers/ata/libata-eh.c')
-rw-r--r--drivers/ata/libata-eh.c18
1 files changed, 0 insertions, 18 deletions
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 16125be34893..cb0508af1459 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1592,8 +1592,6 @@ static int ata_eh_read_log_10h(struct ata_device *dev,
tf->hob_lbah = buf[10];
tf->nsect = buf[12];
tf->hob_nsect = buf[13];
- if (ata_id_has_ncq_autosense(dev->id))
- tf->auxiliary = buf[14] << 16 | buf[15] << 8 | buf[16];
return 0;
}
@@ -1791,18 +1789,6 @@ void ata_eh_analyze_ncq_error(struct ata_link *link)
memcpy(&qc->result_tf, &tf, sizeof(tf));
qc->result_tf.flags = ATA_TFLAG_ISADDR | ATA_TFLAG_LBA | ATA_TFLAG_LBA48;
qc->err_mask |= AC_ERR_DEV | AC_ERR_NCQ;
- if (qc->result_tf.auxiliary) {
- char sense_key, asc, ascq;
-
- sense_key = (qc->result_tf.auxiliary >> 16) & 0xff;
- asc = (qc->result_tf.auxiliary >> 8) & 0xff;
- ascq = qc->result_tf.auxiliary & 0xff;
- ata_dev_dbg(dev, "NCQ Autosense %02x/%02x/%02x\n",
- sense_key, asc, ascq);
- ata_scsi_set_sense(qc->scsicmd, sense_key, asc, ascq);
- qc->flags |= ATA_QCFLAG_SENSE_VALID;
- }
-
ehc->i.err_mask &= ~AC_ERR_DEV;
}
@@ -1832,10 +1818,6 @@ static unsigned int ata_eh_analyze_tf(struct ata_queued_cmd *qc,
return ATA_EH_RESET;
}
- /* Set by NCQ autosense */
- if (qc->flags & ATA_QCFLAG_SENSE_VALID)
- return 0;
-
if (stat & (ATA_ERR | ATA_DF))
qc->err_mask |= AC_ERR_DEV;
else