[RTNETLINK]: Add rtnl_put_cacheinfo() to unify some code

IPv4, IPv6, and DECNet all use struct rta_cacheinfo in a similiar
way, therefore rtnl_put_cacheinfo() is added to reuse code.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 33b3d0ab3a91..493297acdae8 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -585,6 +585,9 @@ extern int rtnl_notify(struct sk_buff *skb, u32 pid, u32 group,
                        struct nlmsghdr *nlh, gfp_t flags);
 extern void rtnl_set_sk_err(u32 group, int error);
 extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics);
+extern int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst,
+                              u32 id, u32 ts, u32 tsage, long expires,
+                              u32 error);
 
 extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const void *data);