netdev - [PATCH net] netlink: fix setsockopt in mmap examples in documentation

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Message-ID: <20140319215420.49a6408d@nehalam.linuxnetplumber.net>
Date:	Wed, 19 Mar 2014 21:54:20 -0700
From:	Stephen Hemminger <shemming@...cade.com>
To:	David Miller <davem@...emloft.net>,
	Patrick McHardy <kaber@...sh.net>
CC:	<netdev@...r.kernel.org>
Subject: [PATCH net] netlink: fix setsockopt in mmap examples in
 documentation

The documentation for how to use netlink mmap interface is incorrect.
The calls to setsockopt() require an additional argument.

Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>


--- a/Documentation/networking/netlink_mmap.txt	2013-11-21 17:22:02.719654412 -0800
+++ b/Documentation/networking/netlink_mmap.txt	2014-03-19 21:13:51.994890229 -0700
@@ -226,9 +226,9 @@ Ring setup:
 	void *rx_ring, *tx_ring;
 
 	/* Configure ring parameters */
-	if (setsockopt(fd, NETLINK_RX_RING, &req, sizeof(req)) < 0)
+	if (setsockopt(fd, SOL_NETLINK, NETLINK_RX_RING, &req, sizeof(req)) < 0)
 		exit(1);
-	if (setsockopt(fd, NETLINK_TX_RING, &req, sizeof(req)) < 0)
+	if (setsockopt(fd, SOL_NETLINK, NETLINK_TX_RING, &req, sizeof(req)) < 0)
 		exit(1)
 
 	/* Calculate size of each individual ring */
--
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