mac80211: remove rx/tx_data->fc member

Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

net/mac80211/ieee80211_i.h

@@ -172,7 +172,7 @@ struct ieee80211_tx_data {
 	struct sk_buff **extra_frag;
 	int num_extra_frag;
 
-	u16 fc, ethertype;
+	u16 ethertype;
 	unsigned int flags;
 };
 
@@ -200,7 +200,7 @@ struct ieee80211_rx_data {
 	struct ieee80211_rx_status *status;
 	struct ieee80211_rate *rate;
 
-	u16 fc, ethertype;
+	u16 ethertype;
 	unsigned int flags;
 	int sent_ps_buffered;
 	int queue;

net/mac80211/rx.c

@@ -1057,7 +1057,6 @@ ieee80211_rx_h_remove_qos_control(struct ieee80211_rx_data *rx)
 		ieee80211_hdrlen(hdr->frame_control) - IEEE80211_QOS_CTL_LEN);
 	hdr = (struct ieee80211_hdr *)skb_pull(rx->skb, IEEE80211_QOS_CTL_LEN);
 	/* change frame type to non QOS */
-	rx->fc &= ~IEEE80211_STYPE_QOS_DATA;
 	hdr->frame_control &= ~cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
 
 	return RX_CONTINUE;
@@ -1831,7 +1830,6 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
 
 	rx.status = status;
 	rx.rate = rate;
-	rx.fc = le16_to_cpu(hdr->frame_control);
 
 	if (ieee80211_is_data(hdr->frame_control) || ieee80211_is_mgmt(hdr->frame_control))
 		local->dot11ReceivedFragmentCount++;
@@ -1894,14 +1892,12 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
 				       prev->dev->name);
 			continue;
 		}
-		rx.fc = le16_to_cpu(hdr->frame_control);
 		ieee80211_invoke_rx_handlers(prev, &rx, skb_new);
 		prev = sdata;
 	}
-	if (prev) {
-		rx.fc = le16_to_cpu(hdr->frame_control);
+	if (prev)
 		ieee80211_invoke_rx_handlers(prev, &rx, skb);
-	} else
+	else
 		dev_kfree_skb(skb);
 }
 

net/mac80211/tx.c

@@ -993,7 +993,6 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 	hdr = (struct ieee80211_hdr *) skb->data;
 
 	tx->sta = sta_info_get(local, hdr->addr1);
-	tx->fc = le16_to_cpu(hdr->frame_control);
 
 	if (is_multicast_ether_addr(hdr->addr1)) {
 		tx->flags &= ~IEEE80211_TX_UNICAST;