iwlwifi: add IEEE80211_AMPDU_TX_OPERATIONAL

mac80211 do not check the return code now, what if mac80211 does start
using the return code? IEEE80211_AMPDU_TX_OPERATIONAL is a valid action,
just iwlwifi driver do not need to take any action for it; so instead of
return "-EINVAL", it is a good program practice to return "-EOPNOTSUPP"
to make sure mac80211 will not get wrong impression.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 771b03c..c780633 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2955,6 +2955,9 @@ static int iwl_mac_ampdu_action(struct ieee80211_hw *hw,
                        return 0;
                else
                        return ret;
+       case IEEE80211_AMPDU_TX_OPERATIONAL:
+               /* do nothing */
+               return -EOPNOTSUPP;
        default:
                IWL_DEBUG_HT(priv, "unknown\n");
                return -EINVAL;