[MAC80211]: Remove bitfields from struct ieee80211_txrx_data

mac80211, remove bitfields from struct ieee80211_txrx_data

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/mac80211/ieee80211_i.h

@@ -113,6 +113,15 @@ typedef enum {
 	TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
 } ieee80211_txrx_result;
 
+/* flags used in struct ieee80211_txrx_data.flags */
+/* whether the MSDU was fragmented */
+#define IEEE80211_TXRXD_FRAGMENTED		BIT(0)
+#define IEEE80211_TXRXD_TXUNICAST		BIT(1)
+#define IEEE80211_TXRXD_TXPS_BUFFERED		BIT(2)
+#define IEEE80211_TXRXD_TXPROBE_LAST_FRAG	BIT(3)
+#define IEEE80211_TXRXD_RXIN_SCAN		BIT(4)
+/* frame is destined to interface currently processed (incl. multicast frames) */
+#define IEEE80211_TXRXD_RXRA_MATCH		BIT(5)
 struct ieee80211_txrx_data {
 	struct sk_buff *skb;
 	struct net_device *dev;
@@ -121,13 +130,10 @@ struct ieee80211_txrx_data {
 	struct sta_info *sta;
 	u16 fc, ethertype;
 	struct ieee80211_key *key;
-	unsigned int fragmented:1; /* whether the MSDU was fragmented */
+	unsigned int flags;
 	union {
 		struct {
 			struct ieee80211_tx_control *control;
-			unsigned int unicast:1;
-			unsigned int ps_buffered:1;
-			unsigned int probe_last_frag:1;
 			struct ieee80211_hw_mode *mode;
 			struct ieee80211_rate *rate;
 			/* use this rate (if set) for last fragment; rate can
@@ -147,10 +153,6 @@ struct ieee80211_txrx_data {
 			int sent_ps_buffered;
 			int queue;
 			int load;
-			unsigned int in_scan:1;
-			/* frame is destined to interface currently processed
-			 * (including multicast frames) */
-			unsigned int ra_match:1;
 		} rx;
 	} u;
 };
@@ -176,7 +178,7 @@ struct ieee80211_tx_stored_packet {
 	int last_frag_rateidx;
 	int last_frag_hwrate;
 	struct ieee80211_rate *last_frag_rate;
-	unsigned int last_frag_rate_ctrl_probe:1;
+	unsigned int last_frag_rate_ctrl_probe;
 };
 
 typedef ieee80211_txrx_result (*ieee80211_tx_handler)

net/mac80211/rx.c

@@ -221,7 +221,7 @@ ieee80211_rx_h_passive_scan(struct ieee80211_txrx_data *rx)
 		return TXRX_QUEUED;
 	}
 
-	if (unlikely(rx->u.rx.in_scan)) {
+	if (unlikely(rx->flags & IEEE80211_TXRXD_RXIN_SCAN)) {
 		/* scanning finished during invoking of handlers */
 		I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
 		return TXRX_DROP;
@@ -241,7 +241,7 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
 		if (unlikely(rx->fc & IEEE80211_FCTL_RETRY &&
 			     rx->sta->last_seq_ctrl[rx->u.rx.queue] ==
 			     hdr->seq_ctrl)) {
-			if (rx->u.rx.ra_match) {
+			if (rx->flags & IEEE80211_TXRXD_RXRA_MATCH) {
 				rx->local->dot11FrameDuplicateCount++;
 				rx->sta->num_duplicates++;
 			}
@@ -259,7 +259,7 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
 		return TXRX_DROP;
 	}
 
-	if (!rx->u.rx.ra_match)
+	if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
 		rx->skb->pkt_type = PACKET_OTHERHOST;
 	else if (compare_ether_addr(rx->dev->dev_addr, hdr->addr1) == 0)
 		rx->skb->pkt_type = PACKET_HOST;
@@ -287,7 +287,7 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
 		if ((!(rx->fc & IEEE80211_FCTL_FROMDS) &&
 		     !(rx->fc & IEEE80211_FCTL_TODS) &&
 		     (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
-		    || !rx->u.rx.ra_match) {
+		    || !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
 			/* Drop IBSS frames and frames for other hosts
 			 * silently. */
 			return TXRX_DROP;
@@ -338,7 +338,7 @@ ieee80211_rx_h_load_key(struct ieee80211_txrx_data *rx)
 	 * No point in finding a key if the frame is neither
 	 * addressed to us nor a multicast frame.
 	 */
-	if (!rx->u.rx.ra_match)
+	if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
 		return TXRX_CONTINUE;
 
 	if (!is_multicast_ether_addr(hdr->addr1) && rx->sta && rx->sta->key) {
@@ -480,7 +480,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx)
 		sta->last_rx = jiffies;
 	}
 
-	if (!rx->u.rx.ra_match)
+	if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
 		return TXRX_CONTINUE;
 
 	sta->rx_fragments++;
@@ -522,7 +522,8 @@ ieee80211_rx_h_wep_weak_iv_detection(struct ieee80211_txrx_data *rx)
 {
 	if (!rx->sta || !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
 	    (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
-	    !rx->key || rx->key->alg != ALG_WEP || !rx->u.rx.ra_match)
+	    !rx->key || rx->key->alg != ALG_WEP ||
+	    !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
 		return TXRX_CONTINUE;
 
 	/* Check for weak IVs, if hwaccel did not remove IV from the frame */
@@ -755,7 +756,7 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
 	}
 
 	/* Complete frame has been reassembled - process it now */
-	rx->fragmented = 1;
+	rx->flags |= IEEE80211_TXRXD_FRAGMENTED;
 
  out:
 	if (rx->sta)
@@ -776,7 +777,7 @@ ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
 	if (likely(!rx->sta ||
 		   (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL ||
 		   (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PSPOLL ||
-		   !rx->u.rx.ra_match))
+		   !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)))
 		return TXRX_CONTINUE;
 
 	skb = skb_dequeue(&rx->sta->tx_filtered);
@@ -860,7 +861,8 @@ static ieee80211_txrx_result
 ieee80211_rx_h_802_1x_pae(struct ieee80211_txrx_data *rx)
 {
 	if (rx->sdata->eapol && ieee80211_is_eapol(rx->skb) &&
-	    rx->sdata->type != IEEE80211_IF_TYPE_STA && rx->u.rx.ra_match) {
+	    rx->sdata->type != IEEE80211_IF_TYPE_STA &&
+	    (rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
 		/* Pass both encrypted and unencrypted EAPOL frames to user
 		 * space for processing. */
 		if (!rx->local->apdev)
@@ -1053,7 +1055,8 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
 	sdata->stats.rx_bytes += skb->len;
 
 	if (local->bridge_packets && (sdata->type == IEEE80211_IF_TYPE_AP
-	    || sdata->type == IEEE80211_IF_TYPE_VLAN) && rx->u.rx.ra_match) {
+	    || sdata->type == IEEE80211_IF_TYPE_VLAN) &&
+	    (rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
 		if (is_multicast_ether_addr(skb->data)) {
 			/* send multicast frames both to higher layers in
 			 * local net stack and back to the wireless media */
@@ -1104,7 +1107,7 @@ ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
 {
 	struct ieee80211_sub_if_data *sdata;
 
-	if (!rx->u.rx.ra_match)
+	if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
 		return TXRX_DROP;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
@@ -1279,30 +1282,30 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 		if (!bssid)
 			return 0;
 		if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
-			if (!rx->u.rx.in_scan)
+			if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
 				return 0;
-			rx->u.rx.ra_match = 0;
+			rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
 		} else if (!multicast &&
 			   compare_ether_addr(sdata->dev->dev_addr,
 					      hdr->addr1) != 0) {
 			if (!sdata->promisc)
 				return 0;
-			rx->u.rx.ra_match = 0;
+			rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
 		}
 		break;
 	case IEEE80211_IF_TYPE_IBSS:
 		if (!bssid)
 			return 0;
 		if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
-			if (!rx->u.rx.in_scan)
+			if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
 				return 0;
-			rx->u.rx.ra_match = 0;
+			rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
 		} else if (!multicast &&
 			   compare_ether_addr(sdata->dev->dev_addr,
 					      hdr->addr1) != 0) {
 			if (!sdata->promisc)
 				return 0;
-			rx->u.rx.ra_match = 0;
+			rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
 		} else if (!rx->sta)
 			rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb,
 							 bssid, hdr->addr2);
@@ -1314,11 +1317,12 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 				return 0;
 		} else if (!ieee80211_bssid_match(bssid,
 					sdata->dev->dev_addr)) {
-			if (!rx->u.rx.in_scan)
+			if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
 				return 0;
-			rx->u.rx.ra_match = 0;
+			rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
 		}
-		if (sdata->dev == sdata->local->mdev && !rx->u.rx.in_scan)
+		if (sdata->dev == sdata->local->mdev &&
+		    !(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
 			/* do not receive anything via
 			 * master device when not scanning */
 			return 0;
@@ -1384,7 +1388,7 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
 	}
 
 	if (unlikely(local->sta_scanning))
-		rx.u.rx.in_scan = 1;
+		rx.flags |= IEEE80211_TXRXD_RXIN_SCAN;
 
 	if (__ieee80211_invoke_rx_handlers(local, local->rx_pre_handlers, &rx,
 					   sta) != TXRX_CONTINUE)
@@ -1394,7 +1398,7 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
 	skb_push(skb, radiotap_len);
 	if (sta && !sta->assoc_ap && !(sta->flags & WLAN_STA_WDS) &&
 	    !local->iff_promiscs && !is_multicast_ether_addr(hdr->addr1)) {
-		rx.u.rx.ra_match = 1;
+		rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
 		ieee80211_invoke_rx_handlers(local, local->rx_handlers, &rx,
 					     rx.sta);
 		sta_info_put(sta);
@@ -1405,7 +1409,7 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
 
 	read_lock(&local->sub_if_lock);
 	list_for_each_entry(sdata, &local->sub_if_list, list) {
-		rx.u.rx.ra_match = 1;
+		rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
 
 		if (!netif_running(sdata->dev))
 			continue;

net/mac80211/tx.c

@@ -223,12 +223,12 @@ ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
 	     (tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ))
 		return TXRX_DROP;
 
-	if (tx->u.tx.ps_buffered)
+	if (tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED)
 		return TXRX_CONTINUE;
 
 	sta_flags = tx->sta ? tx->sta->flags : 0;
 
-	if (likely(tx->u.tx.unicast)) {
+	if (likely(tx->flags & IEEE80211_TXRXD_TXUNICAST)) {
 		if (unlikely(!(sta_flags & WLAN_STA_ASSOC) &&
 			     tx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
 			     (tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
@@ -410,10 +410,10 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
 static ieee80211_txrx_result
 ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx)
 {
-	if (unlikely(tx->u.tx.ps_buffered))
+	if (unlikely(tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED))
 		return TXRX_CONTINUE;
 
-	if (tx->u.tx.unicast)
+	if (tx->flags & IEEE80211_TXRXD_TXUNICAST)
 		return ieee80211_tx_h_unicast_ps_buf(tx);
 	else
 		return ieee80211_tx_h_multicast_ps_buf(tx);
@@ -467,7 +467,7 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
 	u8 *pos;
 	int frag_threshold = tx->local->fragmentation_threshold;
 
-	if (!tx->fragmented)
+	if (!(tx->flags & IEEE80211_TXRXD_FRAGMENTED))
 		return TXRX_CONTINUE;
 
 	first = tx->skb;
@@ -604,7 +604,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
 					      &extra);
 	if (unlikely(extra.probe != NULL)) {
 		tx->u.tx.control->flags |= IEEE80211_TXCTL_RATE_CTRL_PROBE;
-		tx->u.tx.probe_last_frag = 1;
+		tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
 		tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val;
 		tx->u.tx.rate = extra.probe;
 	} else {
@@ -613,11 +613,13 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
 	if (!tx->u.tx.rate)
 		return TXRX_DROP;
 	if (tx->u.tx.mode->mode == MODE_IEEE80211G &&
-	    tx->sdata->use_protection && tx->fragmented &&
-	    extra.nonerp) {
+	    tx->sdata->use_protection &&
+	    (tx->flags & IEEE80211_TXRXD_FRAGMENTED) && extra.nonerp) {
 		tx->u.tx.last_frag_rate = tx->u.tx.rate;
-		tx->u.tx.probe_last_frag = extra.probe ? 1 : 0;
-
+		if (extra.probe)
+			tx->flags &= ~IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
+		else
+			tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
 		tx->u.tx.rate = extra.nonerp;
 		tx->u.tx.control->rate = extra.nonerp;
 		tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
@@ -654,7 +656,7 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
 		control->retry_limit = 1;
 	}
 
-	if (tx->fragmented) {
+	if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
 		/* Do not use multiple retry rates when sending fragmented
 		 * frames.
 		 * TODO: The last fragment could still use multiple retry
@@ -667,7 +669,8 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
 	 * for the frame. */
 	if (mode->mode == MODE_IEEE80211G &&
 	    (tx->u.tx.rate->flags & IEEE80211_RATE_ERP) &&
-	    tx->u.tx.unicast && tx->sdata->use_protection &&
+	    (tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
+	    tx->sdata->use_protection &&
 	    !(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
 		control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT;
 
@@ -685,8 +688,8 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
 	 * for remaining fragments will be updated when they are being sent
 	 * to low-level driver in ieee80211_tx(). */
 	dur = ieee80211_duration(tx, is_multicast_ether_addr(hdr->addr1),
-				 tx->fragmented ? tx->u.tx.extra_frag[0]->len :
-				 0);
+				 (tx->flags & IEEE80211_TXRXD_FRAGMENTED) ?
+				 tx->u.tx.extra_frag[0]->len : 0);
 	hdr->duration_id = cpu_to_le16(dur);
 
 	if ((control->flags & IEEE80211_TXCTL_USE_RTS_CTS) ||
@@ -976,15 +979,20 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
 	}
 
 	tx->u.tx.control = control;
-	tx->u.tx.unicast = !is_multicast_ether_addr(hdr->addr1);
-	if (is_multicast_ether_addr(hdr->addr1))
+	if (is_multicast_ether_addr(hdr->addr1)) {
+		tx->flags &= ~IEEE80211_TXRXD_TXUNICAST;
 		control->flags |= IEEE80211_TXCTL_NO_ACK;
-	else
+	} else {
+		tx->flags |= IEEE80211_TXRXD_TXUNICAST;
 		control->flags &= ~IEEE80211_TXCTL_NO_ACK;
-	tx->fragmented = local->fragmentation_threshold <
-		IEEE80211_MAX_FRAG_THRESHOLD && tx->u.tx.unicast &&
-		skb->len + FCS_LEN > local->fragmentation_threshold &&
-		(!local->ops->set_frag_threshold);
+	}
+	if (local->fragmentation_threshold < IEEE80211_MAX_FRAG_THRESHOLD &&
+	    (tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
+	    skb->len + FCS_LEN > local->fragmentation_threshold &&
+	    !local->ops->set_frag_threshold)
+		tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+	else
+		tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
 	if (!tx->sta)
 		control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
 	else if (tx->sta->clear_dst_mask) {
@@ -1055,7 +1063,7 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
 			if (i == tx->u.tx.num_extra_frag) {
 				control->tx_rate = tx->u.tx.last_frag_hwrate;
 				control->rate = tx->u.tx.last_frag_rate;
-				if (tx->u.tx.probe_last_frag)
+				if (tx->flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG)
 					control->flags |=
 						IEEE80211_TXCTL_RATE_CTRL_PROBE;
 				else
@@ -1186,7 +1194,8 @@ retry:
 		store->num_extra_frag = tx.u.tx.num_extra_frag;
 		store->last_frag_hwrate = tx.u.tx.last_frag_hwrate;
 		store->last_frag_rate = tx.u.tx.last_frag_rate;
-		store->last_frag_rate_ctrl_probe = tx.u.tx.probe_last_frag;
+		store->last_frag_rate_ctrl_probe =
+			!!(tx.flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG);
 	}
 	return 0;
 
@@ -1613,7 +1622,9 @@ void ieee80211_tx_pending(unsigned long data)
 		tx.u.tx.num_extra_frag = store->num_extra_frag;
 		tx.u.tx.last_frag_hwrate = store->last_frag_hwrate;
 		tx.u.tx.last_frag_rate = store->last_frag_rate;
-		tx.u.tx.probe_last_frag = store->last_frag_rate_ctrl_probe;
+		tx.flags = 0;
+		if (store->last_frag_rate_ctrl_probe)
+			tx.flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
 		ret = __ieee80211_tx(local, store->skb, &tx);
 		if (ret) {
 			if (ret == IEEE80211_TX_FRAG_AGAIN)
@@ -1859,7 +1870,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
 		dev_kfree_skb_any(skb);
 	}
 	sta = tx.sta;
-	tx.u.tx.ps_buffered = 1;
+	tx.flags |= IEEE80211_TXRXD_TXPS_BUFFERED;
 
 	for (handler = local->tx_handlers; *handler != NULL; handler++) {
 		res = (*handler)(&tx);

net/mac80211/wpa.c

@@ -90,7 +90,7 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx)
 		return TXRX_DROP;
 
 	if (!tx->key->force_sw_encrypt &&
-	    !tx->fragmented &&
+	    !(tx->flags & IEEE80211_TXRXD_FRAGMENTED) &&
 	    !(tx->local->hw.flags & IEEE80211_HW_TKIP_INCLUDE_MMIC) &&
 	    !wpa_test) {
 		/* hwaccel - with no need for preallocated room for Michael MIC
@@ -154,7 +154,7 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
 		/* Need to verify Michael MIC sometimes in software even when
 		 * hwaccel is used. Atheros ar5212: fragmented frames and QoS
 		 * frames. */
-		if (!rx->fragmented && !wpa_test)
+		if (!(rx->flags & IEEE80211_TXRXD_FRAGMENTED) && !wpa_test)
 			goto remove_mic;
 	}
 
@@ -173,7 +173,7 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
 			    ALG_TKIP_TEMP_AUTH_TX_MIC_KEY];
 	michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
 	if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) {
-		if (!rx->u.rx.ra_match)
+		if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
 			return TXRX_DROP;
 
 		printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from "