From: Mathias Krause <minipli@googlemail.com>
Date: Mon, 30 Sep 2013 20:03:09 +0000 (+0200)
Subject: connector - documentation: simplify netlink message length assignment
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=05742faf2512b94907f49b21581ed4667b9bd702;p=openwrt%2Fstaging%2Fblogic.git

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 4848db8c71ff..8a4da64e02a8 100644
--- 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);