mininet/util/kbuild/tun.patch

   1 --- linux-2.6.33.1/drivers/net/tun.c    2010-03-24 22:47:32.000000000 -0700
   2 +++ tun-new.c   2010-03-24 22:45:00.000000000 -0700
   3 @@ -1006,7 +1006,9 @@
   4                 if (err < 0)
   5                         goto err_free_sk;
   6
   7 -               if (device_create_file(&tun->dev->dev, &dev_attr_tun_flags) ||
   8 +               /* BL hack: check for null parent kobj */
   9 +               if (!tun->dev->dev.kobj.sd ||
  10 +                   device_create_file(&tun->dev->dev, &dev_attr_tun_flags) ||
  11                     device_create_file(&tun->dev->dev, &dev_attr_owner) ||
  12                     device_create_file(&tun->dev->dev, &dev_attr_group))
  13                         printk(KERN_ERR "Failed to create tun sysfs files\n");