diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 46cd3f4..275941b 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -99,6 +99,7 @@
 static unsigned long ata_dev_blacklisted(const struct ata_device *dev);
 
 atomic_t ata_print_id = ATOMIC_INIT(0);
+atomic_t host_print_id = ATOMIC_INIT(0);
 
 struct ata_force_param {
 	const char	*name;
@@ -6097,6 +6098,9 @@
 	for (i = host->n_ports; host->ports[i]; i++)
 		kfree(host->ports[i]);
 
+	/* track host controller */
+	host->host_id = atomic_inc_return(&host_print_id);
+
 	/* give ports names and add SCSI hosts */
 	for (i = 0; i < host->n_ports; i++)
 		host->ports[i]->print_id = atomic_inc_return(&ata_print_id);
diff --git a/drivers/ata/libata-transport.c b/drivers/ata/libata-transport.c
index c04d393..61dca7a 100644
--- a/drivers/ata/libata-transport.c
+++ b/drivers/ata/libata-transport.c
@@ -284,7 +284,7 @@
 
 	dev->parent = get_device(parent);
 	dev->release = ata_tport_release;
-	dev_set_name(dev, "ata%d", ap->print_id);
+	dev_set_name(dev, "ata%d.%d", ap->host->host_id, ap->print_id);
 	transport_setup_device(dev);
 	error = device_add(dev);
 	if (error) {
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 649e5f8..7ae207e 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -546,6 +546,7 @@
 	void			*private_data;
 	struct ata_port_operations *ops;
 	unsigned long		flags;
+	unsigned int            host_id; /* user visible host ID */
 
 	struct mutex		eh_mutex;
 	struct task_struct	*eh_owner;