+#ifdef CONFIG_COMPAT
+
+struct media_links_enum32 {
+ __u32 entity;
+ compat_uptr_t pads; /* struct media_pad_desc * */
+ compat_uptr_t links; /* struct media_link_desc * */
+ __u32 reserved[4];
+};
+
+static long media_device_enum_links32(struct media_device *mdev,
+ struct media_links_enum32 __user *ulinks)
+{
+ struct media_links_enum links;
+ compat_uptr_t pads_ptr, links_ptr;
+
+ memset(&links, 0, sizeof(links));
+
+ if (get_user(links.entity, &ulinks->entity)
+ || get_user(pads_ptr, &ulinks->pads)
+ || get_user(links_ptr, &ulinks->links))
+ return -EFAULT;
+
+ links.pads = compat_ptr(pads_ptr);
+ links.links = compat_ptr(links_ptr);
+
+ return __media_device_enum_links(mdev, &links);
+}
+
+#define MEDIA_IOC_ENUM_LINKS32 _IOWR('|', 0x02, struct media_links_enum32)
+
+static long media_device_compat_ioctl(struct file *filp, unsigned int cmd,
+ unsigned long arg)
+{
+ struct media_devnode *devnode = media_devnode_data(filp);
+ struct media_device *dev = to_media_device(devnode);
+ long ret;
+
+ switch (cmd) {
+ case MEDIA_IOC_DEVICE_INFO:
+ case MEDIA_IOC_ENUM_ENTITIES:
+ case MEDIA_IOC_SETUP_LINK:
+ return media_device_ioctl(filp, cmd, arg);
+
+ case MEDIA_IOC_ENUM_LINKS32:
+ mutex_lock(&dev->graph_mutex);
+ ret = media_device_enum_links32(dev,
+ (struct media_links_enum32 __user *)arg);
+ mutex_unlock(&dev->graph_mutex);
+ break;
+
+ default:
+ ret = -ENOIOCTLCMD;
+ }
+
+ return ret;
+}
+#endif /* CONFIG_COMPAT */
+