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    Subject[PATCH 3.19.y-ckt 102/155] iwlwifi: mvm: clear csa countdown when AP is stopped
    Date
    3.19.8-ckt10 -stable review patch.  If anyone has any objections, please let me know.

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

    From: Avraham Stern <avraham.stern@intel.com>

    commit e9cb0327b26dd7ba43a3b7a05b4b62219decf42d upstream.

    The csa_countdown flag was not cleared when the AP is stopped.
    As a result, if the AP was stopped after csa_countdown had started,
    all the folowing channel switch commands would fail.
    Fix that by clearing the csa_countdown flag when the AP is stopped.

    Signed-off-by: Avraham Stern <avraham.stern@intel.com>
    Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
    Signed-off-by: Kamal Mostafa <kamal@canonical.com>
    ---
    drivers/net/wireless/iwlwifi/mvm/mac80211.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
    index 7b0d757..ba2b6f5 100644
    --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
    +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
    @@ -1818,6 +1818,7 @@ static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
    iwl_mvm_remove_time_event(mvm, mvmvif,
    &mvmvif->time_event_data);
    RCU_INIT_POINTER(mvm->csa_vif, NULL);
    + mvmvif->csa_countdown = false;
    }

    if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
    --
    1.9.1


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