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https://github.com/systemd/systemd.git
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[PATCH] splig LABEL and NUMBER into separate functions.
Now items are processed in priority order, fixing that bug.
This commit is contained in:
greg@kroah.com
Greg KH
parent
a38c862f88
commit
ca1cc0fe74
198
namedev.c
198
namedev.c
@ -566,6 +566,107 @@ static int do_callout(struct sysfs_class_device *class_dev, struct udevice *udev
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return -ENODEV;
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}
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static int do_label(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
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{
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struct sysfs_attribute *tmpattr = NULL;
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struct config_device *dev;
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struct list_head *tmp;
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char *temp = NULL;
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list_for_each(tmp, &config_device_list) {
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dev = list_entry(tmp, struct config_device, node);
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if (dev->type != LABEL)
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continue;
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dbg_parse("LABEL: match file '%s' with value '%s'",
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dev->sysfs_file, dev->sysfs_value);
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/* try to find the attribute in the class device directory */
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tmpattr = sysfs_get_classdev_attr(class_dev, dev->sysfs_file);
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if (tmpattr)
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goto label_found;
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/* look in the class device directory if present */
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if (sysfs_device) {
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tmpattr = sysfs_get_device_attr(sysfs_device, dev->sysfs_file);
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if (tmpattr)
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goto label_found;
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}
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continue;
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label_found:
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tmpattr->value[strlen(tmpattr->value)-1] = 0x00;
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dbg_parse("file '%s' found with value '%s' compare with '%s'", dev->sysfs_file, tmpattr->value, dev->sysfs_value);
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if (strcmp(dev->sysfs_value, tmpattr->value) != 0)
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continue;
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strcpy(udev->name, dev->name);
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if (isdigit(class_dev->path[strlen(class_dev->path)-1])) {
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temp = &class_dev->path[strlen(class_dev->path)-1];
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strcat(udev->name, temp);
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}
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if (dev->mode != 0) {
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udev->mode = dev->mode;
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strcpy(udev->owner, dev->owner);
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strcpy(udev->group, dev->group);
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}
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dbg_parse("file '%s' with value '%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
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dev->sysfs_file, dev->sysfs_value, udev->name,
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dev->owner, dev->group, dev->mode);
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return 0;
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}
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return -ENODEV;
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}
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static int do_number(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
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{
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struct config_device *dev;
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struct list_head *tmp;
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char path[SYSFS_PATH_MAX];
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int found;
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char *temp = NULL;
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/* we have to have a sysfs device for NUMBER to work */
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if (!sysfs_device)
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return -ENODEV;
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list_for_each(tmp, &config_device_list) {
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dev = list_entry(tmp, struct config_device, node);
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if (dev->type != NUMBER)
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continue;
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found = 0;
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strcpy(path, sysfs_device->path);
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temp = strrchr(path, '/');
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dbg_parse("NUMBER path = '%s'", path);
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dbg_parse("NUMBER temp = '%s' id = '%s'", temp, dev->id);
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if (strstr(temp, dev->id) != NULL) {
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found = 1;
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} else {
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*temp = 0x00;
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temp = strrchr(path, '/');
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dbg_parse("NUMBER temp = '%s' id = '%s'", temp, dev->id);
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if (strstr(temp, dev->id) != NULL)
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found = 1;
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}
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if (!found)
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continue;
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strcpy(udev->name, dev->name);
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if (dev->mode != 0) {
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udev->mode = dev->mode;
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strcpy(udev->owner, dev->owner);
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strcpy(udev->group, dev->group);
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}
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dbg_parse("device id '%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
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dev->id, udev->name,
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dev->owner, dev->group, dev->mode);
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return 0;
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}
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return -ENODEV;
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}
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static int do_topology(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
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{
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struct config_device *dev;
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@ -647,11 +748,9 @@ static int do_replace(struct sysfs_class_device *class_dev, struct udevice *udev
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static int get_attr(struct sysfs_class_device *class_dev, struct udevice *udev)
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{
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struct list_head *tmp;
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struct sysfs_device *sysfs_device = NULL;
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struct sysfs_class_device *class_dev_parent = NULL;
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int retval = 0;
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int found;
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char *temp = NULL;
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udev->mode = 0;
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@ -693,99 +792,20 @@ static int get_attr(struct sysfs_class_device *class_dev, struct udevice *udev)
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} else {
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dbg_parse("class_dev->name = '%s'", class_dev->name);
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}
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list_for_each(tmp, &config_device_list) {
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struct config_device *dev = list_entry(tmp, struct config_device, node);
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switch (dev->type) {
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case LABEL:
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{
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struct sysfs_attribute *tmpattr = NULL;
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dbg_parse("LABEL: match file '%s' with value '%s'",
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dev->sysfs_file, dev->sysfs_value);
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/* try to find the attribute in the class device directory */
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tmpattr = sysfs_get_classdev_attr(class_dev, dev->sysfs_file);
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if (tmpattr)
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goto label_found;
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/* look in the class device directory if present */
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if (sysfs_device) {
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tmpattr = sysfs_get_device_attr(sysfs_device, dev->sysfs_file);
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if (tmpattr)
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goto label_found;
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}
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continue;
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label_found:
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tmpattr->value[strlen(tmpattr->value)-1] = 0x00;
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dbg_parse("file '%s' found with value '%s' compare with '%s'", dev->sysfs_file, tmpattr->value, dev->sysfs_value);
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if (strcmp(dev->sysfs_value, tmpattr->value) != 0)
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continue;
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strcpy(udev->name, dev->name);
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if (isdigit(class_dev->path[strlen(class_dev->path)-1])) {
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temp = &class_dev->path[strlen(class_dev->path)-1];
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strcat(udev->name, temp);
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}
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if (dev->mode != 0) {
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udev->mode = dev->mode;
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strcpy(udev->owner, dev->owner);
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strcpy(udev->group, dev->group);
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}
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dbg_parse("file '%s' with value '%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
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dev->sysfs_file, dev->sysfs_value, udev->name,
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dev->owner, dev->group, dev->mode);
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goto done;
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break;
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}
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case NUMBER:
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{
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char path[SYSFS_PATH_MAX];
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found = 0;
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if (!sysfs_device)
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continue;
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s
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rcpy(path, sysfs_device->path);
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temp = strrchr(path, '/');
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dbg_parse("NUMBER path = '%s'", path);
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dbg_parse("NUMBER temp = '%s' id = '%s'", temp, dev->id);
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if (strstr(temp, dev->id) != NULL) {
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found = 1;
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} else {
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*temp = 0x00;
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temp = strrchr(path, '/');
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dbg_parse("NUMBERY temp = '%s' id = '%s'", temp, dev->id);
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if (strstr(temp, dev->id) != NULL)
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found = 1;
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}
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if (!found)
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continue;
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strcpy(udev->name, dev->name);
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if (dev->mode != 0) {
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udev->mode = dev->mode;
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strcpy(udev->owner, dev->owner);
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strcpy(udev->group, dev->group);
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}
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dbg_parse("device id '%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
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dev->id, udev->name,
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dev->owner, dev->group, dev->mode);
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goto done;
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break;
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}
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case KERNEL_NAME:
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default:
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break;
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}
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}
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/* rules are looked at in priority order */
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retval = do_callout(class_dev, udev);
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if (retval == 0)
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goto done;
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retval = do_label(class_dev, udev, sysfs_device);
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if (retval == 0)
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goto done;
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retval = do_number(class_dev, udev, sysfs_device);
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if (retval == 0)
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goto done;
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retval = do_topology(class_dev, udev, sysfs_device);
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if (retval == 0)
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goto done;
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