From b0a8154e9673c9615ccc7ba6a94e349172ca2fb8 Mon Sep 17 00:00:00 2001
From: nvt-se <nvt-se>
Date: Thu, 14 May 2009 12:05:04 +0000
Subject: [PATCH] make it possible to accumulate CRC values through crc16_data.

---
 core/lib/crc16.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/core/lib/crc16.c b/core/lib/crc16.c
index 4508426b0..209211bb3 100644
--- a/core/lib/crc16.c
+++ b/core/lib/crc16.c
@@ -28,7 +28,7 @@
  *
  * This file is part of the Contiki operating system.
  *
- * @(#)$Id: crc16.c,v 1.3 2008/08/26 21:46:06 adamdunkels Exp $
+ * @(#)$Id: crc16.c,v 1.4 2009/05/14 12:05:04 nvt-se Exp $
  */
 
 /** \addtogroup crc16
@@ -67,13 +67,12 @@ unsigned short
 crc16_data(const unsigned char *data, int len, unsigned short acc)
 {
   int i;
-  unsigned short crc = 0;
   
   for(i = 0; i < len; ++i) {
-    crc = crc16_add(*data, crc);
+    acc = crc16_add(*data, acc);
     ++data;
   }
-  return crc;
+  return acc;
 }
 /*---------------------------------------------------------------------------*/