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    Subject[PATCH 4.14 65/67] mac80211: ignore tx status for PS stations in ieee80211_tx_status_ext
    Date
    4.14-stable review patch.  If anyone has any objections, please let me know.

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

    From: Felix Fietkau <nbd@nbd.name>

    commit a317e65face482371de30246b6494feb093ff7f9 upstream.

    Make it behave like regular ieee80211_tx_status calls, except for the lack of
    filtered frame processing.
    This fixes spurious low-ack triggered disconnections with powersave clients
    connected to an AP.

    Fixes: f027c2aca0cf4 ("mac80211: add ieee80211_tx_status_noskb")
    Cc: stable@vger.kernel.org
    Signed-off-by: Felix Fietkau <nbd@nbd.name>
    Signed-off-by: Johannes Berg <johannes.berg@intel.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    net/mac80211/status.c | 2 ++
    1 file changed, 2 insertions(+)

    --- a/net/mac80211/status.c
    +++ b/net/mac80211/status.c
    @@ -953,6 +953,8 @@ void ieee80211_tx_status_ext(struct ieee
    /* Track when last TDLS packet was ACKed */
    if (test_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH))
    sta->status_stats.last_tdls_pkt_time = jiffies;
    + } else if (test_sta_flag(sta, WLAN_STA_PS_STA)) {
    + return;
    } else {
    ieee80211_lost_packet(sta, info);
    }

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