From: Mattias Nissler Date: Fri, 8 Jun 2007 13:31:13 +0000 (+0200) Subject: [PATCH] mac80211: Don't stop tx queue on master device while scanning. X-Git-Tag: v2.6.22-rc5~39^2~7^2 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=14042cbefce4af12f7ca35d2604686154d803291;p=linux-2.6-omap-h63xx.git [PATCH] mac80211: Don't stop tx queue on master device while scanning. mac80211 stops the tx queues during scans. This is wrong with respect to the master deivce tx queue, since stopping it prevents any probes from being sent during the scan. Instead, they accumulate in the queue and are only sent after the scan is finished, which is obviously wrong. Signed-off-by: Mattias Nissler Signed-off-by: John W. Linville --- diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c index 9f30ae4c2ab..91b545c144c 100644 --- a/net/mac80211/ieee80211_sta.c +++ b/net/mac80211/ieee80211_sta.c @@ -2592,11 +2592,17 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw) read_lock(&local->sub_if_lock); list_for_each_entry(sdata, &local->sub_if_list, list) { + + /* No need to wake the master device. */ + if (sdata->dev == local->mdev) + continue; + if (sdata->type == IEEE80211_IF_TYPE_STA) { if (sdata->u.sta.associated) ieee80211_send_nullfunc(local, sdata, 0); ieee80211_sta_timer((unsigned long)sdata); } + netif_wake_queue(sdata->dev); } read_unlock(&local->sub_if_lock); @@ -2738,6 +2744,12 @@ static int ieee80211_sta_start_scan(struct net_device *dev, read_lock(&local->sub_if_lock); list_for_each_entry(sdata, &local->sub_if_list, list) { + + /* Don't stop the master interface, otherwise we can't transmit + * probes! */ + if (sdata->dev == local->mdev) + continue; + netif_stop_queue(sdata->dev); if (sdata->type == IEEE80211_IF_TYPE_STA && sdata->u.sta.associated)