Don't configure Linux tun/tap txqueuelen setting if OpenVPN

txqueuelen directive is set to 0.


git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@6420 e7ae566f-a301-0410-adde-c780ea21d3b5

Author: jamesyonan

tun.c

@@ -1157,7 +1157,7 @@ open_tun (const char *dev, const char *dev_type, const char *dev_node, bool ipv6
        * Try making the TX send queue bigger
        */
 #if defined(IFF_ONE_QUEUE) && defined(SIOCSIFTXQLEN)
-      {
+      if (tt->options.txqueuelen) {
 	struct ifreq netifr;
 	int ctl_fd;