[PATCH] libata: implement ata_dev_enabled and disabled()

This patch renames ata_dev_present() to ata_dev_enabled() and adds
ata_dev_disabled().  This is to discern the state where a device is
present but disabled from not-present state.  This disctinction is
necessary when configuring transfer mode because device selection
timing must not be violated even if a device fails to configure.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/scsi/sata_mv.c b/drivers/scsi/sata_mv.c
index fa901fd65085..0f7d334aadcc 100644
--- a/drivers/scsi/sata_mv.c
+++ b/drivers/scsi/sata_mv.c
@@ -1991,7 +1991,7 @@ comreset_retry:
         tf.nsect = readb((void __iomem *) ap->ioaddr.nsect_addr);
 
         dev->class = ata_dev_classify(&tf);
-        if (!ata_dev_present(dev)) {
+        if (!ata_dev_enabled(dev)) {
                 VPRINTK("Port disabled post-sig: No device present.\n");
                 ata_port_disable(ap);
         }