[PATCH 1/6] libata: seperate out ata_class_present()

[Tejun Heo <htejun@gmail.com>]

Seperate out ata_class_present() from ata_dev_present().  This is
useful because new reset mechanism deals with classes[] directly.

Signed-off-by: Tejun Heo <htejun@gmail.com>

---

 include/linux/libata.h |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

d5044307293c38dd897722d170dcffecb069660f
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 66b6847..22e86cb 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -645,10 +645,14 @@ static inline unsigned int ata_tag_valid
 	return (tag < ATA_MAX_QUEUE) ? 1 : 0;
 }
 
+static inline unsigned int ata_class_present(unsigned int class)
+{
+	return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI;
+}
+
 static inline unsigned int ata_dev_present(const struct ata_device *dev)
 {
-	return ((dev->class == ATA_DEV_ATA) ||
-		(dev->class == ATA_DEV_ATAPI));
+	return ata_class_present(dev->class);
 }
 
 static inline u8 ata_chk_status(struct ata_port *ap)
-- 
1.2.1