linux/net/ipv6/exthdrs_offload.c

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* IPV6 GSO/GRO offload support
* Linux INET6 implementation
*
* IPV6 Extension Header GSO/GRO support
*/
#include <net/protocol.h>
#include "ip6_offload.h"
static const struct net_offload rthdr_offload = {
.flags = INET6_PROTO_GSO_EXTHDR,
};
static const struct net_offload dstopt_offload = {
.flags = INET6_PROTO_GSO_EXTHDR,
};
static const struct net_offload hbh_offload = {
.flags = INET6_PROTO_GSO_EXTHDR,
};
int __init ipv6_exthdrs_offload_init(void)
{
int ret;
ret = inet6_add_offload(&rthdr_offload, IPPROTO_ROUTING);
if (ret)
goto out;
ret = inet6_add_offload(&dstopt_offload, IPPROTO_DSTOPTS);
if (ret)
goto out_rt;
ret = inet6_add_offload(&hbh_offload, IPPROTO_HOPOPTS);
if (ret)
goto out_dstopts;
out:
return ret;
out_dstopts:
inet6_del_offload(&dstopt_offload, IPPROTO_DSTOPTS);
out_rt:
inet6_del_offload(&rthdr_offload, IPPROTO_ROUTING);
goto out;
}