Re: PATCH: rename legacy bus to platform bus

From: Jamey Hicks
Date: Tue Oct 28 2003 - 13:13:41 EST


On Mon, 2003-10-27 at 17:46, Patrick Mochel wrote:
> > Many of us, especially in the embedded computing world, think that
> > "legacy bus" is a misnomer. It's not going away. What do root PCI
> > buses connect to? At the root of the device tree there is a bus. This
> > patch changes the name from legacy bus to platform bus. I'm hoping this
> > change can be made even this late in the development cycle. It is a
> > pretty small patch but I think that naming is very important.
>
> Thanks, I've been meaning to fix it for some time. However, it didn't
> apply:
>
> patching file drivers/base/platform.c
> Hunk #3 FAILED at 105.
> Hunk #4 FAILED at 136.
> Hunk #5 FAILED at 447.
> Hunk #6 FAILED at 111.
> Hunk #7 FAILED at 372.
> 5 out of 7 hunks FAILED -- saving rejects to file
> drivers/base/platform.c.rej
>

Regenerated from a cleanly modified 2.6.0-test9 tree.

Jamey

diff -urN -X dontdiff linux-2.6.0-test9/drivers/base/platform.c linux-2.6.0-test9-jeh1/drivers/base/platform.c
--- linux-2.6.0-test9/drivers/base/platform.c 2003-10-25 14:42:57.000000000 -0400
+++ linux-2.6.0-test9-jeh1/drivers/base/platform.c 2003-10-28 13:04:06.000000000 -0500
@@ -1,5 +1,5 @@
/*
- * platform.c - platform 'psuedo' bus for legacy devices
+ * platform.c - platform 'psuedo' bus for root devices
*
* Copyright (c) 2002-3 Patrick Mochel
* Copyright (c) 2002-3 Open Source Development Labs
@@ -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 @@
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 @@

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);
diff -urN -X dontdiff linux-2.6.0-test9/drivers/i2c/i2c-core.c linux-2.6.0-test9-jeh1/drivers/i2c/i2c-core.c
--- linux-2.6.0-test9/drivers/i2c/i2c-core.c 2003-10-25 14:43:00.000000000 -0400
+++ linux-2.6.0-test9-jeh1/drivers/i2c/i2c-core.c 2003-10-28 13:04:41.000000000 -0500
@@ -136,10 +136,10 @@

/* 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 platform 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;
diff -urN -X dontdiff linux-2.6.0-test9/drivers/i2c/i2c-dev.c linux-2.6.0-test9-jeh1/drivers/i2c/i2c-dev.c
--- linux-2.6.0-test9/drivers/i2c/i2c-dev.c 2003-10-25 14:44:17.000000000 -0400
+++ linux-2.6.0-test9-jeh1/drivers/i2c/i2c-dev.c 2003-10-28 13:04:54.000000000 -0500
@@ -447,7 +447,7 @@

/* 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;
diff -urN -X dontdiff linux-2.6.0-test9/drivers/scsi/hosts.c linux-2.6.0-test9-jeh1/drivers/scsi/hosts.c
--- linux-2.6.0-test9/drivers/scsi/hosts.c 2003-10-25 14:42:51.000000000 -0400
+++ linux-2.6.0-test9-jeh1/drivers/scsi/hosts.c 2003-10-28 13:05:45.000000000 -0500
@@ -111,7 +111,7 @@
}

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)
diff -urN -X dontdiff linux-2.6.0-test9/include/linux/device.h linux-2.6.0-test9-jeh1/include/linux/device.h
--- linux-2.6.0-test9/include/linux/device.h 2003-10-25 14:44:42.000000000 -0400
+++ linux-2.6.0-test9-jeh1/include/linux/device.h 2003-10-28 13:06:04.000000000 -0500
@@ -372,7 +372,7 @@
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);