driver core: struct device - replace bus_id with dev_name(), dev_set_name()

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 files changed, 45 insertions, 53 deletions

diff --git a/drivers/base/attribute_container.c b/drivers/base/attribute_container.c
index f57652db0a2a..b9cda053d3c0 100644
--- a/drivers/base/attribute_container.c
+++ b/drivers/base/attribute_container.c
@@ -167,7 +167,7 @@ attribute_container_add_device(struct device *dev,
                 ic->classdev.parent = get_device(dev);
                 ic->classdev.class = cont->class;
                 cont->class->dev_release = attribute_container_release;
-                strcpy(ic->classdev.bus_id, dev->bus_id);
+                dev_set_name(&ic->classdev, dev_name(dev));
                 if (fn)
                         fn(cont, dev, &ic->classdev);
                 else
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 5aee1c0169ea..83f32b891fa9 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -333,7 +333,7 @@ static int match_name(struct device *dev, void *data)
 {
         const char *name = data;
 
-        return sysfs_streq(name, dev->bus_id);
+        return sysfs_streq(name, dev_name(dev));
 }
 
 /**
@@ -461,12 +461,12 @@ int bus_add_device(struct device *dev)
         int error = 0;
 
         if (bus) {
-                pr_debug("bus: '%s': add device %s\n", bus->name, dev->bus_id);
+                pr_debug("bus: '%s': add device %s\n", bus->name, dev_name(dev));
                 error = device_add_attrs(bus, dev);
                 if (error)
                         goto out_put;
                 error = sysfs_create_link(&bus->p->devices_kset->kobj,
-                                                &dev->kobj, dev->bus_id);
+                                                &dev->kobj, dev_name(dev));
                 if (error)
                         goto out_id;
                 error = sysfs_create_link(&dev->kobj,
@@ -482,7 +482,7 @@ int bus_add_device(struct device *dev)
 out_deprecated:
         sysfs_remove_link(&dev->kobj, "subsystem");
 out_subsys:
-        sysfs_remove_link(&bus->p->devices_kset->kobj, dev->bus_id);
+        sysfs_remove_link(&bus->p->devices_kset->kobj, dev_name(dev));
 out_id:
         device_remove_attrs(bus, dev);
 out_put:
@@ -526,13 +526,13 @@ void bus_remove_device(struct device *dev)
                 sysfs_remove_link(&dev->kobj, "subsystem");
                 remove_deprecated_bus_links(dev);
                 sysfs_remove_link(&dev->bus->p->devices_kset->kobj,
-                                  dev->bus_id);
+                                  dev_name(dev));
                 device_remove_attrs(dev->bus, dev);
                 if (klist_node_attached(&dev->knode_bus))
                         klist_del(&dev->knode_bus);
 
                 pr_debug("bus: '%s': remove device %s\n",
-                         dev->bus->name, dev->bus_id);
+                         dev->bus->name, dev_name(dev));
                 device_release_driver(dev);
                 bus_put(dev->bus);
         }
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 8c2cc2648f5a..14aa2b6953c9 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -119,7 +119,7 @@ static void device_release(struct kobject *kobj)
         else
                 WARN(1, KERN_ERR "Device '%s' does not have a release() "
                         "function, it is broken and must be fixed.\n",
-                        dev->bus_id);
+                        dev_name(dev));
 }
 
 static struct kobj_type device_ktype = {
@@ -209,7 +209,7 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
                 retval = dev->bus->uevent(dev, env);
                 if (retval)
                         pr_debug("device: '%s': %s: bus uevent() returned %d\n",
-                                 dev->bus_id, __func__, retval);
+                                 dev_name(dev), __func__, retval);
         }
 
         /* have the class specific function add its stuff */
@@ -217,7 +217,7 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
                 retval = dev->class->dev_uevent(dev, env);
                 if (retval)
                         pr_debug("device: '%s': %s: class uevent() "
-                                 "returned %d\n", dev->bus_id,
+                                 "returned %d\n", dev_name(dev),
                                  __func__, retval);
         }
 
@@ -226,7 +226,7 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
                 retval = dev->type->uevent(dev, env);
                 if (retval)
                         pr_debug("device: '%s': %s: dev_type uevent() "
-                                 "returned %d\n", dev->bus_id,
+                                 "returned %d\n", dev_name(dev),
                                  __func__, retval);
         }
 
@@ -672,7 +672,7 @@ static int device_add_class_symlinks(struct device *dev)
         if (dev->kobj.parent != &dev->class->p->class_subsys.kobj &&
             device_is_not_partition(dev)) {
                 error = sysfs_create_link(&dev->class->p->class_subsys.kobj,
-                                          &dev->kobj, dev->bus_id);
+                                          &dev->kobj, dev_name(dev));
                 if (error)
                         goto out_subsys;
         }
@@ -712,11 +712,11 @@ out_busid:
         if (dev->kobj.parent != &dev->class->p->class_subsys.kobj &&
             device_is_not_partition(dev))
                 sysfs_remove_link(&dev->class->p->class_subsys.kobj,
-                                  dev->bus_id);
+                                  dev_name(dev));
 #else
         /* link in the class directory pointing to the device */
         error = sysfs_create_link(&dev->class->p->class_subsys.kobj,
-                                  &dev->kobj, dev->bus_id);
+                                  &dev->kobj, dev_name(dev));
         if (error)
                 goto out_subsys;
 
@@ -729,7 +729,7 @@ out_busid:
         return 0;
 
 out_busid:
-        sysfs_remove_link(&dev->class->p->class_subsys.kobj, dev->bus_id);
+        sysfs_remove_link(&dev->class->p->class_subsys.kobj, dev_name(dev));
 #endif
 
 out_subsys:
@@ -758,12 +758,12 @@ static void device_remove_class_symlinks(struct device *dev)
         if (dev->kobj.parent != &dev->class->p->class_subsys.kobj &&
             device_is_not_partition(dev))
                 sysfs_remove_link(&dev->class->p->class_subsys.kobj,
-                                  dev->bus_id);
+                                  dev_name(dev));
 #else
         if (dev->parent && device_is_not_partition(dev))
                 sysfs_remove_link(&dev->kobj, "device");
 
-        sysfs_remove_link(&dev->class->p->class_subsys.kobj, dev->bus_id);
+        sysfs_remove_link(&dev->class->p->class_subsys.kobj, dev_name(dev));
 #endif
 
         sysfs_remove_link(&dev->kobj, "subsystem");
@@ -866,7 +866,7 @@ int device_add(struct device *dev)
         if (!strlen(dev->bus_id))
                 goto done;
 
-        pr_debug("device: '%s': %s\n", dev->bus_id, __func__);
+        pr_debug("device: '%s': %s\n", dev_name(dev), __func__);
 
         parent = get_device(dev->parent);
         setup_parent(dev, parent);
@@ -876,7 +876,7 @@ int device_add(struct device *dev)
                 set_dev_node(dev, dev_to_node(parent));
 
         /* first, register with generic layer. */
-        error = kobject_add(&dev->kobj, dev->kobj.parent, "%s", dev->bus_id);
+        error = kobject_add(&dev->kobj, dev->kobj.parent, "%s", dev_name(dev));
         if (error)
                 goto Error;
 
@@ -1086,7 +1086,7 @@ void device_del(struct device *dev)
  */
 void device_unregister(struct device *dev)
 {
-        pr_debug("device: '%s': %s\n", dev->bus_id, __func__);
+        pr_debug("device: '%s': %s\n", dev_name(dev), __func__);
         device_del(dev);
         put_device(dev);
 }
@@ -1199,7 +1199,7 @@ EXPORT_SYMBOL_GPL(device_remove_file);
 
 static void device_create_release(struct device *dev)
 {
-        pr_debug("device: '%s': %s\n", dev->bus_id, __func__);
+        pr_debug("device: '%s': %s\n", dev_name(dev), __func__);
         kfree(dev);
 }
 
@@ -1344,7 +1344,7 @@ int device_rename(struct device *dev, char *new_name)
         if (!dev)
                 return -EINVAL;
 
-        pr_debug("device: '%s': %s: renaming to '%s'\n", dev->bus_id,
+        pr_debug("device: '%s': %s: renaming to '%s'\n", dev_name(dev),
                  __func__, new_name);
 
 #ifdef CONFIG_SYSFS_DEPRECATED
@@ -1381,7 +1381,7 @@ int device_rename(struct device *dev, char *new_name)
 #else
         if (dev->class) {
                 error = sysfs_create_link_nowarn(&dev->class->p->class_subsys.kobj,
-                                                 &dev->kobj, dev->bus_id);
+                                                 &dev->kobj, dev_name(dev));
                 if (error)
                         goto out;
                 sysfs_remove_link(&dev->class->p->class_subsys.kobj,
@@ -1459,8 +1459,8 @@ int device_move(struct device *dev, struct device *new_parent)
         new_parent = get_device(new_parent);
         new_parent_kobj = get_device_parent(dev, new_parent);
 
-        pr_debug("device: '%s': %s: moving to '%s'\n", dev->bus_id,
-                 __func__, new_parent ? new_parent->bus_id : "<NULL>");
+        pr_debug("device: '%s': %s: moving to '%s'\n", dev_name(dev),
+                 __func__, new_parent ? dev_name(new_parent) : "<NULL>");
         error = kobject_move(&dev->kobj, new_parent_kobj);
         if (error) {
                 cleanup_glue_dir(dev, new_parent_kobj);
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 20febc00a525..17a8e45cf9c6 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -34,7 +34,7 @@ static void driver_bound(struct device *dev)
                 return;
         }
 
-        pr_debug("driver: '%s': %s: bound to device '%s'\n", dev->bus_id,
+        pr_debug("driver: '%s': %s: bound to device '%s'\n", dev_name(dev),
                  __func__, dev->driver->name);
 
         if (dev->bus)
@@ -104,13 +104,13 @@ static int really_probe(struct device *dev, struct device_driver *drv)
 
         atomic_inc(&probe_count);
         pr_debug("bus: '%s': %s: probing driver %s with device %s\n",
-                 drv->bus->name, __func__, drv->name, dev->bus_id);
+                 drv->bus->name, __func__, drv->name, dev_name(dev));
         WARN_ON(!list_empty(&dev->devres_head));
 
         dev->driver = drv;
         if (driver_sysfs_add(dev)) {
                 printk(KERN_ERR "%s: driver_sysfs_add(%s) failed\n",
-                        __func__, dev->bus_id);
+                        __func__, dev_name(dev));
                 goto probe_failed;
         }
 
@@ -127,7 +127,7 @@ static int really_probe(struct device *dev, struct device_driver *drv)
         driver_bound(dev);
         ret = 1;
         pr_debug("bus: '%s': %s: bound device %s to driver %s\n",
-                 drv->bus->name, __func__, dev->bus_id, drv->name);
+                 drv->bus->name, __func__, dev_name(dev), drv->name);
         goto done;
 
 probe_failed:
@@ -139,7 +139,7 @@ probe_failed:
                 /* driver matched but the probe failed */
                 printk(KERN_WARNING
                        "%s: probe of %s failed with error %d\n",
-                       drv->name, dev->bus_id, ret);
+                       drv->name, dev_name(dev), ret);
         }
         /*
          * Ignore errors returned by ->probe so that the next driver can try
@@ -194,7 +194,7 @@ int driver_probe_device(struct device_driver *drv, struct device *dev)
                 goto done;
 
         pr_debug("bus: '%s': %s: matched device %s with driver %s\n",
-                 drv->bus->name, __func__, dev->bus_id, drv->name);
+                 drv->bus->name, __func__, dev_name(dev), drv->name);
 
         ret = really_probe(dev, drv);
 
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index b7e571031ecd..44699d9dd85c 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -291,12 +291,6 @@ firmware_class_timeout(u_long data)
         fw_load_abort(fw_priv);
 }
 
-static inline void fw_setup_device_id(struct device *f_dev, struct device *dev)
-{
-        /* XXX warning we should watch out for name collisions */
-        strlcpy(f_dev->bus_id, dev->bus_id, BUS_ID_SIZE);
-}
-
 static int fw_register_device(struct device **dev_p, const char *fw_name,
                               struct device *device)
 {
@@ -321,7 +315,7 @@ static int fw_register_device(struct device **dev_p, const char *fw_name,
         fw_priv->timeout.data = (u_long) fw_priv;
         init_timer(&fw_priv->timeout);
 
-        fw_setup_device_id(f_dev, device);
+        dev_set_name(f_dev, dev_name(device));
         f_dev->parent = device;
         f_dev->class = &firmware_class;
         dev_set_drvdata(f_dev, fw_priv);
diff --git a/drivers/base/isa.c b/drivers/base/isa.c
index efd577574948..479694b6cbe3 100644
--- a/drivers/base/isa.c
+++ b/drivers/base/isa.c
@@ -11,7 +11,7 @@
 #include <linux/isa.h>
 
 static struct device isa_bus = {
-        .bus_id         = "isa"
+        .init_name      = "isa"
 };
 
 struct isa_dev {
@@ -135,9 +135,8 @@ int isa_register_driver(struct isa_driver *isa_driver, unsigned int ndev)
                 isa_dev->dev.parent     = &isa_bus;
                 isa_dev->dev.bus        = &isa_bus_type;
 
-                snprintf(isa_dev->dev.bus_id, BUS_ID_SIZE, "%s.%u",
-                                isa_driver->driver.name, id);
-
+                dev_set_name(&isa_dev->dev, "%s.%u",
+                             isa_driver->driver.name, id);
                 isa_dev->dev.platform_data      = isa_driver;
                 isa_dev->dev.release            = isa_dev_release;
                 isa_dev->id                     = id;
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 6c743b6008d9..349a1013603f 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -24,7 +24,7 @@
                                  driver))
 
 struct device platform_bus = {
-        .bus_id         = "platform",
+        .init_name      = "platform",
 };
 EXPORT_SYMBOL_GPL(platform_bus);
 
@@ -242,16 +242,15 @@ int platform_device_add(struct platform_device *pdev)
         pdev->dev.bus = &platform_bus_type;
 
         if (pdev->id != -1)
-                snprintf(pdev->dev.bus_id, BUS_ID_SIZE, "%s.%d", pdev->name,
-                         pdev->id);
+                dev_set_name(&pdev->dev, "%s.%d", pdev->name,  pdev->id);
         else
-                strlcpy(pdev->dev.bus_id, pdev->name, BUS_ID_SIZE);
+                dev_set_name(&pdev->dev, pdev->name);
 
         for (i = 0; i < pdev->num_resources; i++) {
                 struct resource *p, *r = &pdev->resource[i];
 
                 if (r->name == NULL)
-                        r->name = pdev->dev.bus_id;
+                        r->name = dev_name(&pdev->dev);
 
                 p = r->parent;
                 if (!p) {
@@ -264,14 +263,14 @@ int platform_device_add(struct platform_device *pdev)
                 if (p && insert_resource(p, r)) {
                         printk(KERN_ERR
                                "%s: failed to claim resource %d\n",
-                               pdev->dev.bus_id, i);
+                               dev_name(&pdev->dev), i);
                         ret = -EBUSY;
                         goto failed;
                 }
         }
 
         pr_debug("Registering platform device '%s'. Parent at %s\n",
-                 pdev->dev.bus_id, pdev->dev.parent->bus_id);
+                 dev_name(&pdev->dev), dev_name(pdev->dev.parent));
 
         ret = device_add(&pdev->dev);
         if (ret == 0)
@@ -607,7 +606,7 @@ static int platform_match(struct device *dev, struct device_driver *drv)
         struct platform_device *pdev;
 
         pdev = container_of(dev, struct platform_device, dev);
-        return (strncmp(pdev->name, drv->name, BUS_ID_SIZE) == 0);
+        return (strcmp(pdev->name, drv->name) == 0);
 }
 
 #ifdef CONFIG_PM_SLEEP
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index a8e4dcbcaf7a..670c9d6c1407 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -76,7 +76,7 @@ void device_pm_add(struct device *dev)
         if (dev->parent) {
                 if (dev->parent->power.status >= DPM_SUSPENDING)
                         dev_warn(dev, "parent %s should not be sleeping\n",
-                                dev->parent->bus_id);
+                                 dev_name(dev->parent));
         } else if (transition_started) {
                 /*
                  * We refuse to register parentless devices while a PM
diff --git a/drivers/base/power/trace.c b/drivers/base/power/trace.c
index 2aa6e8fc4def..0a1a2c4dbc6e 100644
--- a/drivers/base/power/trace.c
+++ b/drivers/base/power/trace.c
@@ -140,7 +140,7 @@ static unsigned int hash_string(unsigned int seed, const char *data, unsigned in
 
 void set_trace_device(struct device *dev)
 {
-        dev_hash_value = hash_string(DEVSEED, dev->bus_id, DEVHASH);
+        dev_hash_value = hash_string(DEVSEED, dev_name(dev), DEVHASH);
 }
 EXPORT_SYMBOL(set_trace_device);
 
@@ -192,7 +192,7 @@ static int show_dev_hash(unsigned int value)
 
         while (entry != &dpm_list) {
                 struct device * dev = to_device(entry);
-                unsigned int hash = hash_string(DEVSEED, dev->bus_id, DEVHASH);
+                unsigned int hash = hash_string(DEVSEED, dev_name(dev), DEVHASH);
                 if (hash == value) {
                         dev_info(dev, "hash matches\n");
                         match++;