Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / net / ipv6 / exthdrs_offload.c

diff --git a/kernel/net/ipv6/exthdrs_offload.c b/kernel/net/ipv6/exthdrs_offload.c
new file mode 100644 (file)
index 0000000..447a7fb
--- /dev/null
+++ b/kernel/net/ipv6/exthdrs_offload.c
@@ -0,0 +1,41 @@
+/*
+ *     IPV6 GSO/GRO offload support
+ *     Linux INET6 implementation
+ *
+ *     This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ *      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,
+};
+
+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;
+
+out:
+       return ret;
+
+out_rt:
+       inet_del_offload(&rthdr_offload, IPPROTO_ROUTING);
+       goto out;
+}