[3.5.y.z,extended,stable] Patch "mac80211: don't send null data packet when not associated" has been added to staging queue

Submitted by Herton Ronaldo Krzesinski on Dec. 7, 2012, 4:04 p.m.


Message ID 1354896294-22063-1-git-send-email-herton.krzesinski@canonical.com
State New
Headers show

Commit Message

Herton Ronaldo Krzesinski Dec. 7, 2012, 4:04 p.m.
This is a note to let you know that I have just added a patch titled

    mac80211: don't send null data packet when not associated

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:


If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see



From 8f6e2ef15b1a9e55ef9796272e4015bcbd2d0f3a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 8 Nov 2012 14:06:28 +0100
Subject: [PATCH] mac80211: don't send null data packet when not associated

commit 20f544eea03db4b498942558b882d463ce575c3e upstream.

On resume or firmware recovery, mac80211 sends a null
data packet to see if the AP is still around and hasn't
disconnected us. However, it always does this even if
it wasn't even connected before, leading to a warning
in the new channel context code. Fix this by checking
that it's associated.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
 net/mac80211/util.c |    2 ++
 1 file changed, 2 insertions(+)


Patch hide | download patch | download mbox

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 9ff0a85..4d83d11 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1400,6 +1400,8 @@  int ieee80211_reconfig(struct ieee80211_local *local)
 		list_for_each_entry(sdata, &local->interfaces, list) {
 			if (sdata->vif.type != NL80211_IFTYPE_STATION)
+			if (!sdata->u.mgd.associated)
+				continue;

 			ieee80211_send_nullfunc(local, sdata, 0);