From c8f994eec2a966a7a5fb6a3be517e3ede6a3cafa Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 27 Mar 2013 22:49:19 +0100 Subject: [PATCH] mac80211: purge remain-on-channel items when suspending They can't really be executed while suspended and could trigger work warnings, so abort all ROC items. When the system resumes the notifications about this will be delivered to userspace which can then act accordingly (though it will assume they were canceled/finished.) Signed-off-by: Johannes Berg --- net/mac80211/ieee80211_i.h | 3 ++- net/mac80211/iface.c | 2 +- net/mac80211/offchannel.c | 6 +++--- net/mac80211/pm.c | 2 ++ 4 files changed, 8 insertions(+), 5 deletions(-) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index c783e996bcce..693c1812b7bc 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1315,7 +1315,8 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local); void ieee80211_offchannel_return(struct ieee80211_local *local); void ieee80211_roc_setup(struct ieee80211_local *local); void ieee80211_start_next_roc(struct ieee80211_local *local); -void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata); +void ieee80211_roc_purge(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata); void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc); void ieee80211_sw_roc_work(struct work_struct *work); void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 760268e51951..75b322f9d945 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -693,7 +693,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, if (sdata->dev) netif_tx_stop_all_queues(sdata->dev); - ieee80211_roc_purge(sdata); + ieee80211_roc_purge(local, sdata); if (sdata->vif.type == NL80211_IFTYPE_STATION) ieee80211_mgd_stop(sdata); diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c index b01eb7314ec6..e19d6cf26dde 100644 --- a/net/mac80211/offchannel.c +++ b/net/mac80211/offchannel.c @@ -436,15 +436,15 @@ void ieee80211_roc_setup(struct ieee80211_local *local) INIT_LIST_HEAD(&local->roc_list); } -void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata) +void ieee80211_roc_purge(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata) { - struct ieee80211_local *local = sdata->local; struct ieee80211_roc_work *roc, *tmp; LIST_HEAD(tmp_list); mutex_lock(&local->mtx); list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { - if (roc->sdata != sdata) + if (sdata && roc->sdata != sdata) continue; if (roc->started && local->ops->remain_on_channel) { diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c index 3d16f4e61743..b98d927dd0f3 100644 --- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -19,6 +19,8 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) ieee80211_dfs_cac_cancel(local); + ieee80211_roc_purge(local, NULL); + if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { mutex_lock(&local->sta_mtx); list_for_each_entry(sta, &local->sta_list, list) { -- 2.11.0