From af20b710479ae662829cf739b521390daa7fcbcb Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Sun, 17 Apr 2011 20:39:07 +0200
Subject: batman-adv: Set the txqueuelen to zero when creating soft interface
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Like other virtual interfaces, e.g. br0, we don't need a transmit
queue. Packets should only be queued on real interfaces which are
underneath. In practice this patch makes little difference since the
virtual interfaces can accept packets as fast as they come, but the
patch will avoid bufferbloat questions to the mailling lists in the
future.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Sven Eckelmann <sven@narfation.org>

diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index ad6da4c..58ce440 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -584,6 +584,7 @@ static void interface_setup(struct net_device *dev)
 	dev->hard_start_xmit = interface_tx;
 #endif
 	dev->destructor = free_netdev;
+	dev->tx_queue_len = 0;
 
 	/**
 	 * can't call min_mtu, because the needed variables
-- 
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