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authorAntonio Quartulli <ordex@autistici.org>2013-04-08 09:38:12 +0200
committerAntonio Quartulli <ordex@autistici.org>2013-05-29 02:44:54 +0200
commit24a5deeb8a198f0a26ae04485d9976c5e414f723 (patch)
treee4f7ad50fb74495c9f478c6c68eea74eb399d16a /net/batman-adv
parent7ed4be9523455a061e62236dc3caa9211cd7edda (diff)
batman-adv: move ring_buffer helper functions in bat_iv_ogm
the two lonely ring_buffer helper functions are used by the bat_iv_ogm module only and therefore they can be moved inside it. Reported-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Diffstat (limited to 'net/batman-adv')
-rw-r--r--net/batman-adv/Makefile1
-rw-r--r--net/batman-adv/bat_iv_ogm.c43
-rw-r--r--net/batman-adv/ring_buffer.c51
-rw-r--r--net/batman-adv/ring_buffer.h27
4 files changed, 42 insertions, 80 deletions
diff --git a/net/batman-adv/Makefile b/net/batman-adv/Makefile
index acbac2a9c62f..489bb36f1b94 100644
--- a/net/batman-adv/Makefile
+++ b/net/batman-adv/Makefile
@@ -32,7 +32,6 @@ batman-adv-y += icmp_socket.o
batman-adv-y += main.o
batman-adv-$(CONFIG_BATMAN_ADV_NC) += network-coding.o
batman-adv-y += originator.o
-batman-adv-y += ring_buffer.o
batman-adv-y += routing.o
batman-adv-y += send.o
batman-adv-y += soft-interface.o
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index ef41be49b314..31c2891c2cd0 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -19,7 +19,6 @@
#include "main.h"
#include "translation-table.h"
-#include "ring_buffer.h"
#include "originator.h"
#include "routing.h"
#include "gateway_common.h"
@@ -29,6 +28,48 @@
#include "bat_algo.h"
#include "network-coding.h"
+/**
+ * batadv_ring_buffer_set - update the ring buffer with the given value
+ * @lq_recv: pointer to the ring buffer
+ * @lq_index: index to store the value at
+ * @value: value to store in the ring buffer
+ */
+static void batadv_ring_buffer_set(uint8_t lq_recv[], uint8_t *lq_index,
+ uint8_t value)
+{
+ lq_recv[*lq_index] = value;
+ *lq_index = (*lq_index + 1) % BATADV_TQ_GLOBAL_WINDOW_SIZE;
+}
+
+/**
+ * batadv_ring_buffer_set - compute the average of all non-zero values stored
+ * in the given ring buffer
+ * @lq_recv: pointer to the ring buffer
+ *
+ * Returns computed average value.
+ */
+static uint8_t batadv_ring_buffer_avg(const uint8_t lq_recv[])
+{
+ const uint8_t *ptr;
+ uint16_t count = 0, i = 0, sum = 0;
+
+ ptr = lq_recv;
+
+ while (i < BATADV_TQ_GLOBAL_WINDOW_SIZE) {
+ if (*ptr != 0) {
+ count++;
+ sum += *ptr;
+ }
+
+ i++;
+ ptr++;
+ }
+
+ if (count == 0)
+ return 0;
+
+ return (uint8_t)(sum / count);
+}
static struct batadv_neigh_node *
batadv_iv_ogm_neigh_new(struct batadv_hard_iface *hard_iface,
const uint8_t *neigh_addr,
diff --git a/net/batman-adv/ring_buffer.c b/net/batman-adv/ring_buffer.c
deleted file mode 100644
index ccab0bbdbb59..000000000000
--- a/net/batman-adv/ring_buffer.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/* Copyright (C) 2007-2013 B.A.T.M.A.N. contributors:
- *
- * Marek Lindner
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- */
-
-#include "main.h"
-#include "ring_buffer.h"
-
-void batadv_ring_buffer_set(uint8_t lq_recv[], uint8_t *lq_index,
- uint8_t value)
-{
- lq_recv[*lq_index] = value;
- *lq_index = (*lq_index + 1) % BATADV_TQ_GLOBAL_WINDOW_SIZE;
-}
-
-uint8_t batadv_ring_buffer_avg(const uint8_t lq_recv[])
-{
- const uint8_t *ptr;
- uint16_t count = 0, i = 0, sum = 0;
-
- ptr = lq_recv;
-
- while (i < BATADV_TQ_GLOBAL_WINDOW_SIZE) {
- if (*ptr != 0) {
- count++;
- sum += *ptr;
- }
-
- i++;
- ptr++;
- }
-
- if (count == 0)
- return 0;
-
- return (uint8_t)(sum / count);
-}
diff --git a/net/batman-adv/ring_buffer.h b/net/batman-adv/ring_buffer.h
deleted file mode 100644
index 3f92ae248e83..000000000000
--- a/net/batman-adv/ring_buffer.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/* Copyright (C) 2007-2013 B.A.T.M.A.N. contributors:
- *
- * Marek Lindner
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- */
-
-#ifndef _NET_BATMAN_ADV_RING_BUFFER_H_
-#define _NET_BATMAN_ADV_RING_BUFFER_H_
-
-void batadv_ring_buffer_set(uint8_t lq_recv[], uint8_t *lq_index,
- uint8_t value);
-uint8_t batadv_ring_buffer_avg(const uint8_t lq_recv[]);
-
-#endif /* _NET_BATMAN_ADV_RING_BUFFER_H_ */

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