From f3163181573f3dea264c5ffd578c187aef898bbb Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Mon, 4 Nov 2013 20:59:40 +0100 Subject: [PATCH] batman-adv: deselect current GW on client mode switch off When switching from gw_mode client to either off or server the current selected gateway has to be deselected. In this way when client mode is enabled again a gateway re-election is forced and a GW_ADD event is consequently sent. The current behaviour instead is to keep the current gateway leading to no GW_ADD event when gw_mode client is selected for a second time Signed-off-by: Antonio Quartulli Signed-off-by: Marek Lindner Signed-off-by: Antonio Quartulli --- net/batman-adv/gateway_client.c | 5 +++++ net/batman-adv/sysfs.c | 9 +++++++++ 2 files changed, 14 insertions(+) diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c index 356417379e96..53a900952282 100644 --- a/net/batman-adv/gateway_client.c +++ b/net/batman-adv/gateway_client.c @@ -205,6 +205,11 @@ void batadv_gw_check_client_stop(struct batadv_priv *bat_priv) if (!curr_gw) return; + /* deselect the current gateway so that next time that client mode is + * enabled a proper GW_ADD event can be sent + */ + batadv_gw_select(bat_priv, NULL); + /* if batman-adv is switching the gw client mode off and a gateway was * already selected, send a DEL uevent */ diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c index e28f95183a8b..b652a5648ed3 100644 --- a/net/batman-adv/sysfs.c +++ b/net/batman-adv/sysfs.c @@ -406,6 +406,15 @@ static ssize_t batadv_store_gw_mode(struct kobject *kobj, batadv_info(net_dev, "Changing gw mode from: %s to: %s\n", curr_gw_mode_str, buff); + /* Invoking batadv_gw_reselect() is not enough to really de-select the + * current GW. It will only instruct the gateway client code to perform + * a re-election the next time that this is needed. + * + * When gw client mode is being switched off the current GW must be + * de-selected explicitly otherwise no GW_ADD uevent is thrown on + * client mode re-activation. This is operation is performed in + * batadv_gw_check_client_stop(). + */ batadv_gw_deselect(bat_priv); /* always call batadv_gw_check_client_stop() before changing the gateway * state -- 2.30.2