libata: add CONFIG_PM to libata core layer
Conditionalize all PM related stuff in libata core layer using
CONFIG_PM.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 00a9a6c..6cc817a 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -510,6 +510,7 @@
}
}
+#ifdef CONFIG_PM
/**
* ata_scsi_device_suspend - suspend ATA device associated with sdev
* @sdev: the SCSI device to suspend
@@ -634,6 +635,7 @@
sdev->sdev_gendev.power.power_state = PMSG_ON;
return 0;
}
+#endif /* CONFIG_PM */
/**
* ata_to_sense_error - convert ATA error to SCSI error