[PATCH] openfirmware: generate device table for userspace

This converts the usage of struct of_match to struct of_device_id,
similar to pci_device_id.  This allows a device table to be generated,
which can be parsed by depmod(8) to generate a map file for module
loading.

In order for hotplug to work with macio devices, patches to
module-init-tools and hotplug must be applied.  Those patches are
available at:

 ftp://ftp.suse.com/pub/people/jeffm/linux/macio-hotplug/

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/ppc/syslib/of_device.c

@@ -3,6 +3,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <asm/errno.h>
 #include <asm/of_device.h>
 
@@ -15,20 +16,20 @@
  * Used by a driver to check whether an of_device present in the
  * system is in its list of supported devices.
  */
-const struct of_match * of_match_device(const struct of_match *matches,
+const struct of_device_id * of_match_device(const struct of_device_id *matches,
 					const struct of_device *dev)
 {
 	if (!dev->node)
 		return NULL;
-	while (matches->name || matches->type || matches->compatible) {
+	while (matches->name[0] || matches->type[0] || matches->compatible[0]) {
 		int match = 1;
-		if (matches->name && matches->name != OF_ANY_MATCH)
+		if (matches->name[0])
 			match &= dev->node->name
 				&& !strcmp(matches->name, dev->node->name);
-		if (matches->type && matches->type != OF_ANY_MATCH)
+		if (matches->type[0])
 			match &= dev->node->type
 				&& !strcmp(matches->type, dev->node->type);
-		if (matches->compatible && matches->compatible != OF_ANY_MATCH)
+		if (matches->compatible[0])
 			match &= device_is_compatible(dev->node,
 				matches->compatible);
 		if (match)
@@ -42,7 +43,7 @@ static int of_platform_bus_match(struct device *dev, struct device_driver *drv)
 {
 	struct of_device * of_dev = to_of_device(dev);
 	struct of_platform_driver * of_drv = to_of_platform_driver(drv);
-	const struct of_match * matches = of_drv->match_table;
+	const struct of_device_id * matches = of_drv->match_table;
 
 	if (!matches)
 		return 0;
@@ -75,7 +76,7 @@ static int of_device_probe(struct device *dev)
 	int error = -ENODEV;
 	struct of_platform_driver *drv;
 	struct of_device *of_dev;
-	const struct of_match *match;
+	const struct of_device_id *match;
 
 	drv = to_of_platform_driver(dev->driver);
 	of_dev = to_of_device(dev);