[GENL]: Add genlmsg_put_reply() to simplify building reply headers

By modyfing genlmsg_put() to take a genl_family and by adding
genlmsg_put_reply() the process of constructing the netlink
and generic netlink headers is simplified.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 6 deletions

diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index faa5239813ce..d3d28919d4b4 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -85,13 +85,9 @@ static int prepare_reply(struct genl_info *info, u8 cmd, struct sk_buff **skbp,
                 int seq = get_cpu_var(taskstats_seqnum)++;
                 put_cpu_var(taskstats_seqnum);
 
-                reply = genlmsg_put(skb, 0, seq,
-                                family.id, 0, 0,
-                                cmd, family.version);
+                reply = genlmsg_put(skb, 0, seq, &family, 0, cmd);
         } else
-                reply = genlmsg_put(skb, info->snd_pid, info->snd_seq,
-                                family.id, 0, 0,
-                                cmd, family.version);
+                reply = genlmsg_put_reply(skb, info, &family, 0, cmd);
         if (reply == NULL) {
                 nlmsg_free(skb);
                 return -EINVAL;