From 97aa4da1984025f9054dac74495e1c209979e60b Mon Sep 17 00:00:00 2001
From: Martine Lenders <mlenders@inf.fu-berlin.de>
Date: Thu, 17 Sep 2015 11:01:24 +0200
Subject: [PATCH] net_help: remove net_help module

Its functionality is now divided up into several helper modules that are
already used through-out RIOT.
---
 Makefile.dep                           |  5 ---
 sys/net/crosslayer/net_help/Makefile   |  1 -
 sys/net/crosslayer/net_help/net_help.c | 55 --------------------------
 sys/net/include/net_help.h             | 54 -------------------------
 4 files changed, 115 deletions(-)
 delete mode 100644 sys/net/crosslayer/net_help/Makefile
 delete mode 100644 sys/net/crosslayer/net_help/net_help.c
 delete mode 100644 sys/net/include/net_help.h

diff --git a/Makefile.dep b/Makefile.dep
index 6f58e65ec6ad..2da1f975d113 100644
--- a/Makefile.dep
+++ b/Makefile.dep
@@ -266,10 +266,6 @@ ifneq (,$(filter posix,$(USEMODULE)))
   USEMODULE += vtimer
 endif
 
-ifneq (,$(filter cbor,$(USEMODULE)))
-  USEMODULE += net_help
-endif
-
 ifneq (,$(filter vtimer,$(USEMODULE)))
   USEMODULE += xtimer
   USEMODULE += timex
@@ -292,7 +288,6 @@ endif
 ifneq (,$(filter fib,$(USEMODULE)))
   USEMODULE += universal_address
   USEMODULE += xtimer
-  USEMODULE += net_help
 endif
 
 ifneq (,$(filter oonf_common,$(USEMODULE)))
diff --git a/sys/net/crosslayer/net_help/Makefile b/sys/net/crosslayer/net_help/Makefile
deleted file mode 100644
index 48422e909a47..000000000000
--- a/sys/net/crosslayer/net_help/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-include $(RIOTBASE)/Makefile.base
diff --git a/sys/net/crosslayer/net_help/net_help.c b/sys/net/crosslayer/net_help/net_help.c
deleted file mode 100644
index 9a2741d1a4f4..000000000000
--- a/sys/net/crosslayer/net_help/net_help.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (C) 2013  Freie Universität Berlin.
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License v2.1. See the file LICENSE in the top level
- * directory for more details.
- */
-
-/**
- * @{
- * @file
- * @brief   Providing implementation for prototypes defined in net_help.h.
- * @author  Oliver Gesch <oliver.gesch@googlemail.com>
- */
-
-#include <stdio.h>
-#include <string.h>
-#include "thread.h"
-
-#include "net_help.h"
-
-uint16_t net_help_csum(uint16_t sum, uint8_t *buf, uint16_t len)
-{
-    int count = len >> 1;
-
-    if (count) {
-        uint16_t carry = 0;
-
-        do {
-            uint16_t t = (*buf << 8) + *(buf + 1);
-            count--;
-            buf += 2;
-            sum += carry;
-            sum += t;
-            carry = (t > sum);
-        } while (count);
-
-        sum += carry;
-    }
-
-    if (len & 1) {
-        uint16_t u = (*buf << 8);
-        sum += (*buf << 8);
-
-        if (sum < u) {
-            sum++;
-        }
-    }
-
-    return sum;
-}
-
-/**
- * @}
- */
diff --git a/sys/net/include/net_help.h b/sys/net/include/net_help.h
deleted file mode 100644
index cc6c79784806..000000000000
--- a/sys/net/include/net_help.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Copyright (C) 2014 Freie Universität Berlin
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License v2.1. See the file LICENSE in the top level
- * directory for more details.
- */
-
-/**
- * @defgroup    net_help Net help
- * @ingroup     net
- * @brief       Helper functions for networking as byte order conversions and checksum calculations
- * @{
- *
- * @file
- *
- * @author      Oliver Gesch <oliver.gesch@googlemail.com>
- */
-
-#ifndef __NET_HELP_H
-#define __NET_HELP_H
-
-#include <string.h>
-#include <stdint.h>
-
-#include "byteorder.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define BITSET(var,pos) ((var) & (1<<(pos)))
-
-/**
- * @brief   Computes the Internet Checksum for *buf* with initial value *init*
- *
- * @see <a href="https://tools.ietf.org/html/rfc1071">
- *          RFC 1071
- *      </a>
- *
- * @param[in] init      Initial value for the checksum (0 in most cases)
- * @param[in] buf       A byte array to calculate the checksum of
- * @param[in] buf_len   Length of *buf*
- *
- * @return  The Internet Checksum of *buf* with initial value *init*
- */
-uint16_t net_help_csum(uint16_t init, uint8_t *buf, uint16_t buf_len);
-
-#ifdef __cplusplus
-}
-#endif
-
-/** @} */
-#endif /* __NET_HELP_H */