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    Subject[PATCH 082/241] mac80211: don't send null data packet when not associated
    Date
    3.5.7.2 -stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Johannes Berg <johannes.berg@intel.com>

    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(+)

    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)
    continue;
    + if (!sdata->u.mgd.associated)
    + continue;

    ieee80211_send_nullfunc(local, sdata, 0);
    }
    --
    1.7.9.5


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