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batman-adv: Simplify gw_check_election(), use gw_get_selected() 

gw_get_selected() can get us the desired orig_node directly, therefore
reusing that function in gw_check_election().

Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
This commit is contained in:
Linus Lüssing 2011-03-14 22:43:33 +00:00 committed by Sven Eckelmann
parent 4c80485057
commit 57f0c07c4d
1 changed files with 12 additions and 11 deletions
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23
net/batman-adv/gateway_client.c
View File

@ -23,6 +23,7 @@
#include "gateway_client.h"
#include "gateway_common.h"
#include "hard-interface.h"
#include "originator.h"
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <linux/udp.h>
@ -203,28 +204,25 @@ void gw_election(struct bat_priv *bat_priv)
void gw_check_election(struct bat_priv *bat_priv, struct orig_node *orig_node)
{
struct gw_node *curr_gateway_tmp;
struct orig_node *curr_gw_orig;
uint8_t gw_tq_avg, orig_tq_avg;
curr_gw_orig = gw_get_selected(bat_priv);
if (!curr_gw_orig)
goto deselect;
rcu_read_lock();
curr_gateway_tmp = rcu_dereference(bat_priv->curr_gw);
if (!curr_gateway_tmp)
goto out_rcu;
if (!curr_gateway_tmp->orig_node)
goto deselect_rcu;
if (!curr_gateway_tmp->orig_node->router)
if (!curr_gw_orig->router)
goto deselect_rcu;
/* this node already is the gateway */
if (curr_gateway_tmp->orig_node == orig_node)
if (curr_gw_orig == orig_node)
goto out_rcu;
if (!orig_node->router)
goto out_rcu;
gw_tq_avg = curr_gateway_tmp->orig_node->router->tq_avg;
gw_tq_avg = curr_gw_orig->router->tq_avg;
rcu_read_unlock();
orig_tq_avg = orig_node->router->tq_avg;
@ -255,6 +253,9 @@ deselect_rcu:
deselect:
gw_deselect(bat_priv);
out:
if (curr_gw_orig)
orig_node_free_ref(curr_gw_orig);
return;
}