linux-kernel - [055/146] net: Do not wrap sysctl igmp_max_memberships in IP

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Message-Id: <20110601080315.717294324@blue.kroah.org>
Date:	Wed, 01 Jun 2011 16:59:51 +0900
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Joakim Tjernlund <Joakim.Tjernlund@...nsmode.se>,
	"David S. Miller" <davem@...emloft.net>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [055/146] net: Do not wrap sysctl igmp_max_memberships in IP_MULTICAST

2.6.38-stable review patch.  If anyone has any objections, please let us know.

------------------


From: Joakim Tjernlund <Joakim.Tjernlund@...nsmode.se>

[ Upstream commit 192910a6cca5e50e5bd6cbd1da0e7376c7adfe62 ]

controlling igmp_max_membership is useful even when IP_MULTICAST
is off.
Quagga(an OSPF deamon) uses multicast addresses for all interfaces
using a single socket and hits igmp_max_membership limit when
there are 20 interfaces or more.
Always export sysctl igmp_max_memberships in proc, just like
igmp_max_msf

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@...nsmode.se>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 net/ipv4/sysctl_net_ipv4.c |    3 ---
 1 file changed, 3 deletions(-)

--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -311,7 +311,6 @@ static struct ctl_table ipv4_table[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_do_large_bitmap,
 	},
-#ifdef CONFIG_IP_MULTICAST
 	{
 		.procname	= "igmp_max_memberships",
 		.data		= &sysctl_igmp_max_memberships,
@@ -319,8 +318,6 @@ static struct ctl_table ipv4_table[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec
 	},
-
-#endif
 	{
 		.procname	= "igmp_max_msf",
 		.data		= &sysctl_igmp_max_msf,


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