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Linux/net/ipv6/exthdrs_offload.c

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  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  *      IPV6 GSO/GRO offload support
  4  *      Linux INET6 implementation
  5  *
  6  *      IPV6 Extension Header GSO/GRO support
  7  */
  8 #include <net/protocol.h>
  9 #include "ip6_offload.h"
 10 
 11 static const struct net_offload rthdr_offload = {
 12         .flags          =       INET6_PROTO_GSO_EXTHDR,
 13 };
 14 
 15 static const struct net_offload dstopt_offload = {
 16         .flags          =       INET6_PROTO_GSO_EXTHDR,
 17 };
 18 
 19 int __init ipv6_exthdrs_offload_init(void)
 20 {
 21         int ret;
 22 
 23         ret = inet6_add_offload(&rthdr_offload, IPPROTO_ROUTING);
 24         if (ret)
 25                 goto out;
 26 
 27         ret = inet6_add_offload(&dstopt_offload, IPPROTO_DSTOPTS);
 28         if (ret)
 29                 goto out_rt;
 30 
 31 out:
 32         return ret;
 33 
 34 out_rt:
 35         inet6_del_offload(&rthdr_offload, IPPROTO_ROUTING);
 36         goto out;
 37 }
 38 

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