Revert "libata: Implement support for sense data reporting"
This reverts commit fe7173c206de63fc28475ee6ae42ff95c05692de.
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.
ATA_ID_COMMAND_SET_3/4 constants are not reverted as they're used by
later changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Hannes Reinecke <hare@suse.de>
Cc: stable@vger.kernel.org #v4.1+
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 426bc12..19bcb80 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2147,24 +2147,6 @@
return 0;
}
-static void ata_dev_config_sense_reporting(struct ata_device *dev)
-{
- unsigned int err_mask;
-
- if (!ata_id_has_sense_reporting(dev->id))
- return;
-
- if (ata_id_sense_reporting_enabled(dev->id))
- return;
-
- err_mask = ata_dev_set_feature(dev, SETFEATURE_SENSE_DATA, 0x1);
- if (err_mask) {
- ata_dev_dbg(dev,
- "failed to enable Sense Data Reporting, Emask 0x%x\n",
- err_mask);
- }
-}
-
/**
* ata_dev_configure - Configure the specified ATA/ATAPI device
* @dev: Target device to configure
@@ -2387,7 +2369,7 @@
dev->devslp_timing[i] = sata_setting[j];
}
}
- ata_dev_config_sense_reporting(dev);
+
dev->cdb_len = 16;
}