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Diffstat (limited to 'net/ipv6/exthdrs.c')
-rw-r--r--net/ipv6/exthdrs.c38
1 files changed, 35 insertions, 3 deletions
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index cb6f0828ca44..de6559e3aa0a 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;
};