[PATCH] Rename legacy_bus to platform_bus

From: Jeff Garzik <jgarzik@pobox.com>

I've seen this patch floating around.  Not sure the origin, but it's 
surfaced on lkml and also when I was poking around handhelds.org CVS for
iPAQ patches:  on non-PCs, particularly system-on-chip devices but not
just there, you have a custom "platform bus" that is the root of pretty 
much all other devices and buses.

It's something I wanted to make sure people didn't forget; to make sure 
the legacy_bus didn't get "legacied out of existence."  ;-)

drivers/base/platform.c

@@ -14,8 +14,8 @@
 #include <linux/module.h>
 #include <linux/init.h>
 
-struct device legacy_bus = {
-	.bus_id		= "legacy",
+struct device platform_bus = {
+	.bus_id		= "platform",
 };
 
 /**
@@ -29,7 +29,7 @@ int platform_device_register(struct platform_device * pdev)
 		return -EINVAL;
 
 	if (!pdev->dev.parent)
-		pdev->dev.parent = &legacy_bus;
+		pdev->dev.parent = &platform_bus;
 
 	pdev->dev.bus = &platform_bus_type;
 	
@@ -105,11 +105,11 @@ struct bus_type platform_bus_type = {
 
 int __init platform_bus_init(void)
 {
-	device_register(&legacy_bus);
+	device_register(&platform_bus);
 	return bus_register(&platform_bus_type);
 }
 
-EXPORT_SYMBOL(legacy_bus);
+EXPORT_SYMBOL(platform_bus);
 EXPORT_SYMBOL(platform_bus_type);
 EXPORT_SYMBOL(platform_device_register);
 EXPORT_SYMBOL(platform_device_unregister);

drivers/i2c/i2c-core.c

@@ -136,10 +136,10 @@ int i2c_add_adapter(struct i2c_adapter *adap)
 
 	/* Add the adapter to the driver core.
 	 * If the parent pointer is not set up,
-	 * we add this adapter to the legacy bus.
+	 * we add this adapter to the host bus.
 	 */
 	if (adap->dev.parent == NULL)
-		adap->dev.parent = &legacy_bus;
+		adap->dev.parent = &platform_bus;
 	sprintf(adap->dev.bus_id, "i2c-%d", adap->nr);
 	adap->dev.driver = &i2c_adapter_driver;
 	adap->dev.release = &i2c_adapter_dev_release;

drivers/i2c/i2c-dev.c

@@ -447,7 +447,7 @@ static int i2cdev_attach_adapter(struct i2c_adapter *adap)
 
 	/* register this i2c device with the driver core */
 	i2c_dev->adap = adap;
-	if (adap->dev.parent == &legacy_bus)
+	if (adap->dev.parent == &platform_bus)
 		i2c_dev->class_dev.dev = &adap->dev;
 	else
 		i2c_dev->class_dev.dev = adap->dev.parent;

drivers/scsi/hosts.c

@@ -109,7 +109,7 @@ int scsi_add_host(struct Scsi_Host *shost, struct device *dev)
 	}
 
 	if (!shost->shost_gendev.parent)
-		shost->shost_gendev.parent = dev ? dev : &legacy_bus;
+		shost->shost_gendev.parent = dev ? dev : &platform_bus;
 
 	error = device_add(&shost->shost_gendev);
 	if (error)

include/linux/device.h

@@ -372,7 +372,7 @@ extern int platform_device_register(struct platform_device *);
 extern void platform_device_unregister(struct platform_device *);
 
 extern struct bus_type platform_bus_type;
-extern struct device legacy_bus;
+extern struct device platform_bus;
 
 /* drivers/base/power.c */
 extern void device_shutdown(void);