diff options
Diffstat (limited to 'net/ipv6/exthdrs.c')
| -rw-r--r-- | net/ipv6/exthdrs.c | 38 |
1 files changed, 35 insertions, 3 deletions
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c index cb6f0828ca4..de6559e3aa0 100644 --- a/net/ipv6/exthdrs.c +++ b/net/ipv6/exthdrs.c @@ -549,14 +549,44 @@ static const struct inet6_protocol nodata_protocol = { .flags = INET6_PROTO_NOPOLICY, }; +static int 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; + +out: + return ret; + +out_rt: + inet_del_offload(&rthdr_offload, IPPROTO_ROUTING); + goto out; +} + +static void ipv6_exthdrs_offload_exit(void) +{ + inet_del_offload(&rthdr_offload, IPPROTO_ROUTING); + inet_del_offload(&rthdr_offload, IPPROTO_DSTOPTS); +} + int __init ipv6_exthdrs_init(void) { int ret; - ret = inet6_add_protocol(&rthdr_protocol, IPPROTO_ROUTING); + ret = ipv6_exthdrs_offload_init(); if (ret) goto out; + ret = inet6_add_protocol(&rthdr_protocol, IPPROTO_ROUTING); + if (ret) + goto out_offload; + ret = inet6_add_protocol(&destopt_protocol, IPPROTO_DSTOPTS); if (ret) goto out_rthdr; @@ -567,10 +597,12 @@ int __init ipv6_exthdrs_init(void) out: return ret; -out_rthdr: - inet6_del_protocol(&rthdr_protocol, IPPROTO_ROUTING); out_destopt: inet6_del_protocol(&destopt_protocol, IPPROTO_DSTOPTS); +out_rthdr: + inet6_del_protocol(&rthdr_protocol, IPPROTO_ROUTING); +out_offload: + ipv6_exthdrs_offload_exit(); goto out; }; |