From 5c6fe01c1fe3140a8fb088d2a9c32548b731c35e Mon Sep 17 00:00:00 2001
From: William Manley <william.manley@youview.com>
Date: Tue, 6 Aug 2013 19:03:14 +0100
Subject: [PATCH] net: igmp: Don't flush routing cache when force_igmp_version
 is modified

The procfs knob /proc/sys/net/ipv4/conf/*/force_igmp_version allows the
IGMP protocol version to use to be explicitly set.  As a side effect this
caused the routing cache to be flushed as it was declared as a
DEVINET_SYSCTL_FLUSHING_ENTRY.  Flushing is unnecessary and this patch
makes it so flushing does not occur.

Requested by Hannes Frederic Sowa as he was reviewing other patches
adding procfs entries.

Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: William Manley <william.manley@youview.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Benjamin LaHaise <bcrl@kvack.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
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