---

yaml --- r: 23490 b: refs/heads/master c: ebdfca6 h: refs/heads/master v: v3
git-mirror · Mar 24, 2006 · f74de09 · f74de09
1 parent 40807a1
commit f74de09
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Showing 3 changed files with 20 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 082776e4be791736c32baf818e50f501a7f83819
+refs/heads/master: ebdfca6eb1b755d3bfe9a81339ecdafd92038c1a
diff --git a/trunk/drivers/scsi/libata-core.c b/trunk/drivers/scsi/libata-core.c
@@ -1575,6 +1575,23 @@ void sata_phy_reset(struct ata_port *ap)
 	ata_bus_reset(ap);
 }
 
+/**
+ *	ata_dev_pair		-	return other device on cable
+ *	@ap: port
+ *	@adev: device
+ *
+ *	Obtain the other device on the same cable, or if none is
+ *	present NULL is returned
+ */
+
+struct ata_device *ata_dev_pair(struct ata_port *ap, struct ata_device *adev)
+{
+	struct ata_device *pair = &ap->device[1 - adev->devno];
+	if (!ata_dev_present(pair))
+		return NULL;
+	return pair;
+}
+
 /**
  *	ata_port_disable - Disable port.
  *	@ap: Port to be disabled.

diff --git a/trunk/include/linux/libata.h b/trunk/include/linux/libata.h
@@ -573,6 +573,8 @@ extern int ata_std_bios_param(struct scsi_device *sdev,
 			      struct block_device *bdev,
 			      sector_t capacity, int geom[]);
 extern int ata_scsi_slave_config(struct scsi_device *sdev);
+extern struct ata_device *ata_dev_pair(struct ata_port *ap, 
+				       struct ata_device *adev);
 
 /*
  * Timing helpers