mac80211: remove tx status ampdu_ack_map

There's a single use of this struct member, but
as it is write-only it clearly not necessary.
Thus we can free up some space here, even if we
don't need it right now it seems pointless to
carry around the variable.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 1 insertions, 5 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index 52bec1040467..bde342b5df85 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -1252,7 +1252,6 @@ static int iwlagn_tx_status_reply_compressed_ba(struct iwl_priv *priv,
         info->flags |= IEEE80211_TX_STAT_ACK;
         info->flags |= IEEE80211_TX_STAT_AMPDU;
         info->status.ampdu_ack_len = successes;
-        info->status.ampdu_ack_map = bitmap;
         info->status.ampdu_len = agg->frame_count;
         iwlagn_hwrate_to_tx_control(priv, agg->rate_n_flags, info);
 
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index de22cbfef232..f26440a46df0 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -412,8 +412,6 @@ struct ieee80211_tx_rate {
  * @driver_data: array of driver_data pointers
  * @ampdu_ack_len: number of acked aggregated frames.
  *      relevant only if IEEE80211_TX_STAT_AMPDU was set.
- * @ampdu_ack_map: block ack bit map for the aggregation.
- *      relevant only if IEEE80211_TX_STAT_AMPDU was set.
  * @ampdu_len: number of aggregated frames.
  *      relevant only if IEEE80211_TX_STAT_AMPDU was set.
  * @ack_signal: signal strength of the ACK frame
@@ -448,10 +446,9 @@ struct ieee80211_tx_info {
                 struct {
                         struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES];
                         u8 ampdu_ack_len;
-                        u64 ampdu_ack_map;
                         int ack_signal;
                         u8 ampdu_len;
-                        /* 7 bytes free */
+                        /* 15 bytes free */
                 } status;
                 struct {
                         struct ieee80211_tx_rate driver_rates[