libata: kill dead code paths in reset path
Some code paths which had been made obsolete by recent reset
simplification were still around. Kill them.
* ata_eh_reset() checked for ATA_DEV_UNKNOWN to determine
classification failure. This is no longer applicable.
* ata_do_reset() should convert ATA_DEV_UNKNOWN to ATA_DEV_NONE
regardless of reset result (e.g. -EAGAIN).
* LLDs don't need to convert ATA_DEV_UNKNOWN to ATA_DEV_NONE.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 99f83bd..88cdc49 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2052,15 +2052,13 @@
classes[dev->devno] = ATA_DEV_UNKNOWN;
rc = reset(link, classes, deadline);
- if (rc)
- return rc;
/* convert all ATA_DEV_UNKNOWN to ATA_DEV_NONE */
ata_link_for_each_dev(dev, link)
if (classes[dev->devno] == ATA_DEV_UNKNOWN)
classes[dev->devno] = ATA_DEV_NONE;
- return 0;
+ return rc;
}
static int ata_eh_followup_srst_needed(struct ata_link *link,
@@ -2209,21 +2207,6 @@
if (rc && rc != -EAGAIN)
goto fail;
- /* was classification successful? */
- if (classify && classes[0] == ATA_DEV_UNKNOWN &&
- !(lflags & ATA_LFLAG_ASSUME_CLASS)) {
- if (try < max_tries) {
- ata_link_printk(link, KERN_WARNING,
- "classification failed\n");
- rc = -EINVAL;
- goto fail;
- }
-
- ata_link_printk(link, KERN_WARNING,
- "classfication failed, assuming ATA\n");
- lflags |= ATA_LFLAG_ASSUME_ATA;
- }
-
done:
ata_link_for_each_dev(dev, link) {
/* After the reset, the device state is PIO 0 and the
diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c
index 9f47d00..d27bb9a 100644
--- a/drivers/ata/sata_inic162x.c
+++ b/drivers/ata/sata_inic162x.c
@@ -428,8 +428,6 @@
ata_sff_tf_read(ap, &tf);
*class = ata_dev_classify(&tf);
- if (*class == ATA_DEV_UNKNOWN)
- *class = ATA_DEV_NONE;
}
return 0;
diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c
index 0687893..20757fa 100644
--- a/drivers/ata/sata_sil24.c
+++ b/drivers/ata/sata_sil24.c
@@ -693,9 +693,6 @@
sil24_read_tf(ap, 0, &tf);
*class = ata_dev_classify(&tf);
- if (*class == ATA_DEV_UNKNOWN)
- *class = ATA_DEV_NONE;
-
out:
DPRINTK("EXIT, class=%u\n", *class);
return 0;