Statistics

• Try not to get refcnt everytime by using rt6i_idev in rt6_info{} (rt6).

• Issue

  • dst (rt6) is unavailable in ipv6_rcv().
  • Is it safe to use __in6_dev_get() in ipv6_rcv()?
    • Yes: okay, do it.
    • No: Hmm...
      • in6_dev_get()?
      • put critical stats in net_device()?!
        • IPSTATS_MIB_INRECEIVES