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driver core: get rid of struct device's bus_id string array
Now that all users of bus_id is gone, we can remove it from struct device. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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6866ac9db0
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@ -777,17 +777,12 @@ static void device_remove_class_symlinks(struct device *dev)
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int dev_set_name(struct device *dev, const char *fmt, ...)
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{
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va_list vargs;
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char *s;
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int err;
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va_start(vargs, fmt);
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vsnprintf(dev->bus_id, sizeof(dev->bus_id), fmt, vargs);
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err = kobject_set_name_vargs(&dev->kobj, fmt, vargs);
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va_end(vargs);
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/* ewww... some of these buggers have / in the name... */
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while ((s = strchr(dev->bus_id, '/')))
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*s = '!';
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return 0;
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return err;
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}
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EXPORT_SYMBOL_GPL(dev_set_name);
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@ -864,12 +859,17 @@ int device_add(struct device *dev)
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if (!dev)
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goto done;
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/* Temporarily support init_name if it is set.
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* It will override bus_id for now */
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if (dev->init_name)
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dev_set_name(dev, "%s", dev->init_name);
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/*
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* for statically allocated devices, which should all be converted
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* some day, we need to initialize the name. We prevent reading back
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* the name, and force the use of dev_name()
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*/
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if (dev->init_name) {
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dev_set_name(dev, dev->init_name);
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dev->init_name = NULL;
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}
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if (!strlen(dev->bus_id))
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if (!dev_name(dev))
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goto done;
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pr_debug("device: '%s': %s\n", dev_name(dev), __func__);
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@ -1348,7 +1348,10 @@ struct device *device_create_vargs(struct class *class, struct device *parent,
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dev->release = device_create_release;
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dev_set_drvdata(dev, drvdata);
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vsnprintf(dev->bus_id, BUS_ID_SIZE, fmt, args);
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retval = kobject_set_name_vargs(&dev->kobj, fmt, args);
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if (retval)
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goto error;
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retval = device_register(dev);
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if (retval)
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goto error;
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@ -1452,19 +1455,15 @@ int device_rename(struct device *dev, char *new_name)
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old_class_name = make_class_name(dev->class->name, &dev->kobj);
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#endif
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old_device_name = kmalloc(BUS_ID_SIZE, GFP_KERNEL);
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old_device_name = kstrdup(dev_name(dev), GFP_KERNEL);
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if (!old_device_name) {
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error = -ENOMEM;
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goto out;
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}
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strlcpy(old_device_name, dev->bus_id, BUS_ID_SIZE);
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strlcpy(dev->bus_id, new_name, BUS_ID_SIZE);
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error = kobject_rename(&dev->kobj, new_name);
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if (error) {
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strlcpy(dev->bus_id, old_device_name, BUS_ID_SIZE);
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if (error)
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goto out;
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}
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#ifdef CONFIG_SYSFS_DEPRECATED
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if (old_class_name) {
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@ -374,7 +374,6 @@ struct device {
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struct device *parent;
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struct kobject kobj;
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char bus_id[BUS_ID_SIZE]; /* position on parent bus */
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unsigned uevent_suppress:1;
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const char *init_name; /* initial name of the device */
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struct device_type *type;
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@ -427,8 +426,7 @@ struct device {
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static inline const char *dev_name(const struct device *dev)
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{
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/* will be changed into kobject_name(&dev->kobj) in the near future */
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return dev->bus_id;
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return kobject_name(&dev->kobj);
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}
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extern int dev_set_name(struct device *dev, const char *name, ...)
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@ -72,6 +72,8 @@ struct kobject {
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extern int kobject_set_name(struct kobject *kobj, const char *name, ...)
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__attribute__((format(printf, 2, 3)));
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extern int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
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va_list vargs);
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static inline const char *kobject_name(const struct kobject *kobj)
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{
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@ -212,7 +212,7 @@ static int kobject_add_internal(struct kobject *kobj)
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* @fmt: format string used to build the name
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* @vargs: vargs to format the string.
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*/
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static int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
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int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
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va_list vargs)
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{
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const char *old_name = kobj->name;
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