From ec2b774e7c91094d8c00de579646f1162b87b01e Mon Sep 17 00:00:00 2001
From: Marek Lindner <lindner_marek@yahoo.de>
Date: Tue, 20 Dec 2011 23:16:52 +0800
Subject: [PATCH] mac80211: ibss should not purge clients it is not responsible
for
The IBSS merge code calls ieee80211_sta_expire() with a relatively
short expire timeout that purges other clients prematurely. The
expire function has to check that only the clients belonging to
the vif in question are purged.
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
net/mac80211/sta_info.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 3d01abb2b813..f0d3b483dabd 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -946,6 +946,9 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
mutex_lock(&local->sta_mtx);
list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
+ if (sdata != sta->sdata)
+ continue;
+
if (time_after(jiffies, sta->last_rx + exp_time)) {
#ifdef CONFIG_MAC80211_IBSS_DEBUG
printk(KERN_DEBUG "%s: expiring inactive STA %pM\n",
--
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