connector - documentation: simplify netlink message length assignment

Use the precalculated size instead of obfuscating the message length
calculation by first subtracting the netlink header length from size
and then use the NLMSG_LENGTH() macro to add it back again.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/connector/ucon.c b/Documentation/connector/ucon.c
index 4848db8c71ff5118244888b620251f49831c92f2..8a4da64e02a8b08f3ad7ed6359ef713d7afd3b54 100644 (file)
--- a/Documentation/connector/ucon.c
+++ b/Documentation/connector/ucon.c
@@ -71,7 +71,7 @@ static int netlink_send(int s, struct cn_msg *msg)
        nlh->nlmsg_seq = seq++;
        nlh->nlmsg_pid = getpid();
        nlh->nlmsg_type = NLMSG_DONE;
-       nlh->nlmsg_len = NLMSG_LENGTH(size - sizeof(*nlh));
+       nlh->nlmsg_len = size;
        nlh->nlmsg_flags = 0;
 
        m = NLMSG_DATA(nlh);