This is a note to let you know that I've just added the patch titled
mac80211: deinitialize ibss-internals after emptiness check
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mac80211-deinitialize-ibss-internals-after-emptiness-check.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From b78a4932f5fb11fadf41e69c606a33fa6787574c Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <[email protected]>
Date: Tue, 13 Nov 2012 18:43:03 +0100
Subject: mac80211: deinitialize ibss-internals after emptiness check
From: Simon Wunderlich <[email protected]>
commit b78a4932f5fb11fadf41e69c606a33fa6787574c upstream.
The check whether the IBSS is active and can be removed should be
performed before deinitializing the fields used for the check/search.
Otherwise, the configured BSS will not be found and removed properly.
To make it more clear for the future, rename sdata->u.ibss to the
local pointer ifibss which is used within the checks.
This behaviour was introduced by
f3209bea110cade12e2b133da8b8499689cb0e2e
("mac80211: fix IBSS teardown race")
Signed-off-by: Simon Wunderlich <[email protected]>
Cc: Ignacy Gawedzki <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/mac80211/ibss.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -965,10 +965,6 @@ int ieee80211_ibss_leave(struct ieee8021
mutex_lock(&sdata->u.ibss.mtx);
- sdata->u.ibss.state = IEEE80211_IBSS_MLME_SEARCH;
- memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
- sdata->u.ibss.ssid_len = 0;
-
active_ibss = ieee80211_sta_active_ibss(sdata);
if (!active_ibss && !is_zero_ether_addr(ifibss->bssid)) {
@@ -989,6 +985,10 @@ int ieee80211_ibss_leave(struct ieee8021
}
}
+ ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
+ memset(ifibss->bssid, 0, ETH_ALEN);
+ ifibss->ssid_len = 0;
+
sta_info_flush(sdata->local, sdata);
/* remove beacon */
Patches currently in stable-queue which might be from
[email protected] are
queue-3.0/mac80211-deinitialize-ibss-internals-after-emptiness-check.patch
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