Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 73 insertions, 0 deletions

diff --git a/kernel/net/netfilter/nf_conntrack_l3proto_generic.c b/kernel/net/netfilter/nf_conntrack_l3proto_generic.c
new file mode 100644
index 000000000..cf9ace70b
--- /dev/null
+++ b/kernel/net/netfilter/nf_conntrack_l3proto_generic.c
@@ -0,0 +1,73 @@
+/*
+ * (C) 2003,2004 USAGI/WIDE Project <http://www.linux-ipv6.org>
+ *
+ * Based largely upon the original ip_conntrack code which
+ * had the following copyright information:
+ *
+ * (C) 1999-2001 Paul `Rusty' Russell
+ * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Author:
+ *	Yasuyuki Kozakai @USAGI	<yasuyuki.kozakai@toshiba.co.jp>
+ */
+
+#include <linux/types.h>
+#include <linux/ip.h>
+#include <linux/netfilter.h>
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/icmp.h>
+#include <linux/sysctl.h>
+#include <net/ip.h>
+
+#include <linux/netfilter_ipv4.h>
+#include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_conntrack_l4proto.h>
+#include <net/netfilter/nf_conntrack_l3proto.h>
+#include <net/netfilter/nf_conntrack_core.h>
+#include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
+
+static bool generic_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff,
+				 struct nf_conntrack_tuple *tuple)
+{
+	memset(&tuple->src.u3, 0, sizeof(tuple->src.u3));
+	memset(&tuple->dst.u3, 0, sizeof(tuple->dst.u3));
+
+	return true;
+}
+
+static bool generic_invert_tuple(struct nf_conntrack_tuple *tuple,
+				 const struct nf_conntrack_tuple *orig)
+{
+	memset(&tuple->src.u3, 0, sizeof(tuple->src.u3));
+	memset(&tuple->dst.u3, 0, sizeof(tuple->dst.u3));
+
+	return true;
+}
+
+static void generic_print_tuple(struct seq_file *s,
+				const struct nf_conntrack_tuple *tuple)
+{
+}
+
+static int generic_get_l4proto(const struct sk_buff *skb, unsigned int nhoff,
+			       unsigned int *dataoff, u_int8_t *protonum)
+{
+	/* Never track !!! */
+	return -NF_ACCEPT;
+}
+
+
+struct nf_conntrack_l3proto nf_conntrack_l3proto_generic __read_mostly = {
+	.l3proto	 = PF_UNSPEC,
+	.name		 = "unknown",
+	.pkt_to_tuple	 = generic_pkt_to_tuple,
+	.invert_tuple	 = generic_invert_tuple,
+	.print_tuple	 = generic_print_tuple,
+	.get_l4proto	 = generic_get_l4proto,
+};
+EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_generic);