net/ipv6/exthdrs_offload.c

   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
  15 static const struct net_offload rthdr_offload = {
  16         .flags          =       INET6_PROTO_GSO_EXTHDR,
  17 };
  18
  19 static const struct net_offload dstopt_offload = {
  20         .flags          =       INET6_PROTO_GSO_EXTHDR,
  21 };
  22
  23 int __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
  35 out:
  36         return ret;
  37
  38 out_rt:
  39         inet_del_offload(&rthdr_offload, IPPROTO_ROUTING);
  40         goto out;
  41 }