From 5b1a2651bb6322d63b853cfd8acfe539de3bf926 Mon Sep 17 00:00:00 2001
From: Alan Quillin <alanquillin@gmail.com>
Date: Mon, 12 Jan 2015 12:49:28 -0600
Subject: [PATCH] of_v1_0: Fixed the flow format logic to set it correctly when
 registers matches are set

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 ryu/ofproto/nx_match.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ryu/ofproto/nx_match.py b/ryu/ofproto/nx_match.py
index 13296cb1..5cfeb874 100644
--- a/ryu/ofproto/nx_match.py
+++ b/ryu/ofproto/nx_match.py
@@ -308,6 +308,9 @@ class ClsRule(object):
         if not self.wc.wildcards & FWW_NW_ECN:
             return ofproto_v1_0.NXFF_NXM
 
+        if self.wc.regs_bits > 0:
+            return ofproto_v1_0.NXFF_NXM
+
         return ofproto_v1_0.NXFF_OPENFLOW10
 
     def match_tuple(self):