of: Modify of_device_get_modalias to be passed struct device

Now that the of_node pointer is part of struct device,
of_device_get_modalias could be used on any struct device
that has the device node pointer set.  This patch changes
of_device_get_modalias to accept a struct device instead
of a struct of_device.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
CC: Michal Simek <monstr@monstr.eu>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Wolfram Sang <w.sang@pengutronix.de>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
CC: microblaze-uclinux@itee.uq.edu.au
CC: linuxppc-dev@ozlabs.org

arch/microblaze/include/asm/of_device.h

@@ -15,9 +15,6 @@
 #include <linux/device.h>
 #include <linux/of.h>
 
-extern ssize_t of_device_get_modalias(struct of_device *ofdev,
-					char *str, ssize_t len);
-
 extern struct of_device *of_device_alloc(struct device_node *np,
 					 const char *bus_id,
 					 struct device *parent);

drivers/macintosh/macio_sysfs.c

@@ -41,10 +41,7 @@ compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
 static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
 			      char *buf)
 {
-	struct of_device *ofdev = to_of_device(dev);
+	int len = of_device_get_modalias(dev, buf, PAGE_SIZE - 2);
-	int len;
-
-	len = of_device_get_modalias(ofdev, buf, PAGE_SIZE - 2);
 
 	buf[len] = '\n';
 	buf[len+1] = 0;

drivers/of/device.c

@@ -68,10 +68,7 @@ static ssize_t name_show(struct device *dev,
 static ssize_t modalias_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
-	struct of_device *ofdev = to_of_device(dev);
+	ssize_t len = of_device_get_modalias(dev, buf, PAGE_SIZE - 2);
-	ssize_t len = 0;
-
-	len = of_device_get_modalias(ofdev, buf, PAGE_SIZE - 2);
 	buf[len] = '\n';
 	buf[len+1] = 0;
 	return len+1;
@@ -123,19 +120,18 @@ void of_device_unregister(struct of_device *ofdev)
 }
 EXPORT_SYMBOL(of_device_unregister);
 
-ssize_t of_device_get_modalias(struct of_device *ofdev,
+ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len)
-				char *str, ssize_t len)
 {
 	const char *compat;
 	int cplen, i;
 	ssize_t tsize, csize, repend;
 
 	/* Name & Type */
-	csize = snprintf(str, len, "of:N%sT%s", ofdev->dev.of_node->name,
+	csize = snprintf(str, len, "of:N%sT%s", dev->of_node->name,
-			 ofdev->dev.of_node->type);
+			 dev->of_node->type);
 
 	/* Get compatible property if any */
-	compat = of_get_property(ofdev->dev.of_node, "compatible", &cplen);
+	compat = of_get_property(dev->of_node, "compatible", &cplen);
 	if (!compat)
 		return csize;
 
@@ -210,7 +206,7 @@ int of_device_uevent(struct device *dev, struct kobj_uevent_env *env)
 	if (add_uevent_var(env, "MODALIAS="))
 		return -ENOMEM;
 
-	sl = of_device_get_modalias(to_of_device(dev), &env->buf[env->buflen-1],
+	sl = of_device_get_modalias(dev, &env->buf[env->buflen-1],
 				    sizeof(env->buf) - env->buflen);
 	if (sl >= (sizeof(env->buf) - env->buflen))
 		return -ENOMEM;

include/linux/of_device.h

@@ -42,7 +42,7 @@ static inline void of_device_free(struct of_device *dev)
 	of_release_dev(&dev->dev);
 }
 
-extern ssize_t of_device_get_modalias(struct of_device *ofdev,
+extern ssize_t of_device_get_modalias(struct device *dev,
 					char *str, ssize_t len);
 
 extern int of_device_uevent(struct device *dev, struct kobj_uevent_env *env);