LXR linux/net/ipv6/exthdrs

   1/*
   2 *      IPV6 GSO/GRO offload support
   3 *      Linux INET6 implementation
   4 *
   5 *      This program is free software; you can redistribute it and/or
   6 *      modify it under the terms of the GNU General Public License
   7 *      as published by the Free Software Foundation; either version
   8 *      2 of the License, or (at your option) any later version.
   9 *
  10 *      IPV6 Extension Header GSO/GRO support
  11 */
  12#include <net/protocol.h>
  13#include "ip6_offload.h"
  14
  15static const struct net_offload rthdr_offload = {
  16        .flags          =       INET6_PROTO_GSO_EXTHDR,
  17};
  18
  19static const struct net_offload dstopt_offload = {
  20        .flags          =       INET6_PROTO_GSO_EXTHDR,
  21};
  22
  23int __init ipv6_exthdrs_offload_init(void)
  24{
  25        int ret;
  26
  27        ret = inet6_add_offload(&rthdr_offload, IPPROTO_ROUTING);
  28        if (!ret)
  29                goto out;
  30
  31        ret = inet6_add_offload(&dstopt_offload, IPPROTO_DSTOPTS);
  32        if (!ret)
  33                goto out_rt;
  34
  35out:
  36        return ret;
  37
  38out_rt:
  39        inet_del_offload(&rthdr_offload, IPPROTO_ROUTING);
  40        goto out;
  41}
  42