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authorJohannes Berg <johannes.berg@intel.com>2012-12-13 16:16:45 (GMT)
committerJohannes Berg <johannes.berg@intel.com>2013-01-03 12:01:34 (GMT)
commit529ba6e9313dbe60dab7e72c6fdf647a012e9f5b (patch)
treea556b0d18baf4309ebf705715440e702d5acb86b /net/mac80211/pm.c
parent61e8a48cc1283c8e4358b3ce06305d886c55f7ce (diff)
downloadlinux-529ba6e9313dbe60dab7e72c6fdf647a012e9f5b.tar.xz
mac80211: clean up association better in suspend
When suspending, bss_info_changed() is called to disable beacons, but managed mode interfaces are simply removed (bss_info_changed() is called with "no change" only). This can lead to problems. To fix this and copy the BSS configuration, clear it during suspend and restore it on resume. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/pm.c')
-rw-r--r--net/mac80211/pm.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index f321783..712c17f 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -121,6 +121,8 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
/* remove all interfaces */
list_for_each_entry(sdata, &local->interfaces, list) {
+ u32 changed = BSS_CHANGED_BEACON_ENABLED;
+
if (!ieee80211_sdata_running(sdata))
continue;
@@ -129,14 +131,25 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
case NL80211_IFTYPE_MONITOR:
/* skip these */
continue;
+ case NL80211_IFTYPE_STATION:
+ if (sdata->vif.bss_conf.assoc)
+ changed = BSS_CHANGED_ASSOC |
+ BSS_CHANGED_BSSID |
+ BSS_CHANGED_IDLE;
+ else
+ changed = 0;
+ /* fall through */
default:
ieee80211_quiesce(sdata);
break;
}
- /* disable beaconing */
- ieee80211_bss_info_change_notify(sdata,
- BSS_CHANGED_BEACON_ENABLED);
+ sdata->suspend_bss_conf = sdata->vif.bss_conf;
+ memset(&sdata->vif.bss_conf, 0, sizeof(sdata->vif.bss_conf));
+ sdata->vif.bss_conf.idle = true;
+
+ /* disable beaconing or remove association */
+ ieee80211_bss_info_change_notify(sdata, changed);
if (sdata->vif.type == NL80211_IFTYPE_AP &&
rcu_access_pointer(sdata->u.ap.beacon))