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authorMarek Lindner <mareklindner@neomailbox.ch>2016-05-10 17:31:59 +0300
committerSimon Wunderlich <sw@simonwunderlich.de>2016-06-30 11:29:43 +0300
commit7db682d1c39b2198a9c9d0bee5812d9c4329123d (patch)
tree14f9eef1514bf90cdfdc6f95c92ec5c7fd4afd8c
parent3a24a63e74af1bffc7aeb5d83adcd63b37e38425 (diff)
downloadlinux-7db682d1c39b2198a9c9d0bee5812d9c4329123d.tar.xz
batman-adv: init ELP tweaking options only once
The ELP interval and throughput override interface settings are initialized with default settings on every time an interface is added to a mesh. This patch prevents this behavior by moving the configuration init to the interface detection routine which runs only once per interface. Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> [a@unstable.cc: move initialization to batadv_v_hardif_init] Signed-off-by: Antonio Quartulli <a@unstable.cc> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
-rw-r--r--net/batman-adv/bat_algo.h7
-rw-r--r--net/batman-adv/bat_v.c19
-rw-r--r--net/batman-adv/bat_v_elp.c1
-rw-r--r--net/batman-adv/hard-interface.c3
4 files changed, 23 insertions, 7 deletions
diff --git a/net/batman-adv/bat_algo.h b/net/batman-adv/bat_algo.h
index 03dafd33d23b..36542962de7d 100644
--- a/net/batman-adv/bat_algo.h
+++ b/net/batman-adv/bat_algo.h
@@ -18,13 +18,14 @@
#ifndef _NET_BATMAN_ADV_BAT_ALGO_H_
#define _NET_BATMAN_ADV_BAT_ALGO_H_
-struct batadv_priv;
+#include "main.h"
int batadv_iv_init(void);
#ifdef CONFIG_BATMAN_ADV_BATMAN_V
int batadv_v_init(void);
+void batadv_v_hardif_init(struct batadv_hard_iface *hardif);
int batadv_v_mesh_init(struct batadv_priv *bat_priv);
void batadv_v_mesh_free(struct batadv_priv *bat_priv);
@@ -35,6 +36,10 @@ static inline int batadv_v_init(void)
return 0;
}
+static inline void batadv_v_hardif_init(struct batadv_hard_iface *hardif)
+{
+}
+
static inline int batadv_v_mesh_init(struct batadv_priv *bat_priv)
{
return 0;
diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c
index c16cd44a3b4c..c2fea812fb48 100644
--- a/net/batman-adv/bat_v.c
+++ b/net/batman-adv/bat_v.c
@@ -70,11 +70,6 @@ static int batadv_v_iface_enable(struct batadv_hard_iface *hard_iface)
if (ret < 0)
batadv_v_elp_iface_disable(hard_iface);
- /* enable link throughput auto-detection by setting the throughput
- * override to zero
- */
- atomic_set(&hard_iface->bat_v.throughput_override, 0);
-
return ret;
}
@@ -339,6 +334,20 @@ static struct batadv_algo_ops batadv_batman_v __read_mostly = {
};
/**
+ * batadv_v_hardif_init - initialize the algorithm specific fields in the
+ * hard-interface object
+ * @hard_iface: the hard-interface to initialize
+ */
+void batadv_v_hardif_init(struct batadv_hard_iface *hard_iface)
+{
+ /* enable link throughput auto-detection by setting the throughput
+ * override to zero
+ */
+ atomic_set(&hard_iface->bat_v.throughput_override, 0);
+ atomic_set(&hard_iface->bat_v.elp_interval, 500);
+}
+
+/**
* batadv_v_mesh_init - initialize the B.A.T.M.A.N. V private resources for a
* mesh
* @bat_priv: the object representing the mesh interface to initialise
diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c
index 8909d1eb9622..cf0262becd08 100644
--- a/net/batman-adv/bat_v_elp.c
+++ b/net/batman-adv/bat_v_elp.c
@@ -344,7 +344,6 @@ int batadv_v_elp_iface_enable(struct batadv_hard_iface *hard_iface)
/* randomize initial seqno to avoid collision */
get_random_bytes(&random_seqno, sizeof(random_seqno));
atomic_set(&hard_iface->bat_v.elp_seqno, random_seqno);
- atomic_set(&hard_iface->bat_v.elp_interval, 500);
/* assume full-duplex by default */
hard_iface->bat_v.flags |= BATADV_FULL_DUPLEX;
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index db2009d84a25..3696929e5692 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -37,6 +37,7 @@
#include <linux/spinlock.h>
#include <linux/workqueue.h>
+#include "bat_algo.h"
#include "bridge_loop_avoidance.h"
#include "debugfs.h"
#include "distributed-arp-table.h"
@@ -683,6 +684,8 @@ batadv_hardif_add_interface(struct net_device *net_dev)
if (batadv_is_wifi_netdev(net_dev))
hard_iface->num_bcasts = BATADV_NUM_BCASTS_WIRELESS;
+ batadv_v_hardif_init(hard_iface);
+
/* extra reference for return */
kref_init(&hard_iface->refcount);
kref_get(&hard_iface->refcount);