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authorTejun Heo <htejun@gmail.com>2008-04-07 22:47:20 +0900
committerJeff Garzik <jgarzik@redhat.com>2008-04-17 15:44:23 -0400
commit305d2a1ab137d11d573319c315748a87060fe82d (patch)
tree8dcf81b1742db21c6a745688de96a18944c83617 /drivers/ata/ahci.c
parent5958e3025fd9d97429163e074d9cfa3848f51f28 (diff)
libata: unify mechanism to request follow-up SRST
Previously, there were two ways to trigger follow-up SRST from hardreset method - returning -EAGAIN and leaving all device classes unmodified. Drivers never used the latter mechanism and the only use case for the former was when hardreset couldn't classify. Drop the latter mechanism and let -EAGAIN mean "perform follow-up SRST if classification is required". This change removes unnecessary follow-up SRSTs and simplifies reset implementations. Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'drivers/ata/ahci.c')
-rw-r--r--drivers/ata/ahci.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index a69bcca4eb1..3071a2341be 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1365,7 +1365,6 @@ static int ahci_hardreset(struct ata_link *link, unsigned int *class,
ahci_start_engine(ap);
- *class = ATA_DEV_NONE;
if (online)
*class = ahci_dev_classify(ap);
@@ -1394,7 +1393,6 @@ static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
/* vt8251 doesn't clear BSY on signature FIS reception,
* request follow-up softreset.
*/
- *class = ATA_DEV_NONE;
return online ? -EAGAIN : rc;
}
@@ -1439,7 +1437,6 @@ static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
if (rc)
ahci_kick_engine(ap, 0);
}
- *class = ATA_DEV_NONE;
return rc;
}