mac80211: rx.c use new frame control helpers
[safe/jmp/linux-2.6] / net / mac80211 / rx.c
index d0018fc..8962d13 100644 (file)
@@ -19,7 +19,7 @@
 #include <net/ieee80211_radiotap.h>
 
 #include "ieee80211_i.h"
-#include "ieee80211_led.h"
+#include "led.h"
 #include "mesh.h"
 #include "wep.h"
 #include "wpa.h"
@@ -61,22 +61,147 @@ static inline int should_drop_frame(struct ieee80211_rx_status *status,
                                    int present_fcs_len,
                                    int radiotap_len)
 {
-       struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+       struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 
        if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
                return 1;
        if (unlikely(skb->len < 16 + present_fcs_len + radiotap_len))
                return 1;
-       if (((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
-                       cpu_to_le16(IEEE80211_FTYPE_CTL)) &&
-           ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE)) !=
-                       cpu_to_le16(IEEE80211_STYPE_PSPOLL)) &&
-           ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE)) !=
-                       cpu_to_le16(IEEE80211_STYPE_BACK_REQ)))
+       if (ieee80211_is_ctl(hdr->frame_control) &&
+           !ieee80211_is_pspoll(hdr->frame_control) &&
+           !ieee80211_is_back_req(hdr->frame_control))
                return 1;
        return 0;
 }
 
+static int
+ieee80211_rx_radiotap_len(struct ieee80211_local *local,
+                         struct ieee80211_rx_status *status)
+{
+       int len;
+
+       /* always present fields */
+       len = sizeof(struct ieee80211_radiotap_header) + 9;
+
+       if (status->flag & RX_FLAG_TSFT)
+               len += 8;
+       if (local->hw.flags & IEEE80211_HW_SIGNAL_DB ||
+           local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
+               len += 1;
+       if (local->hw.flags & IEEE80211_HW_NOISE_DBM)
+               len += 1;
+
+       if (len & 1) /* padding for RX_FLAGS if necessary */
+               len++;
+
+       /* make sure radiotap starts at a naturally aligned address */
+       if (len % 8)
+               len = roundup(len, 8);
+
+       return len;
+}
+
+/**
+ * ieee80211_add_rx_radiotap_header - add radiotap header
+ *
+ * add a radiotap header containing all the fields which the hardware provided.
+ */
+static void
+ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
+                                struct sk_buff *skb,
+                                struct ieee80211_rx_status *status,
+                                struct ieee80211_rate *rate,
+                                int rtap_len)
+{
+       struct ieee80211_radiotap_header *rthdr;
+       unsigned char *pos;
+
+       rthdr = (struct ieee80211_radiotap_header *)skb_push(skb, rtap_len);
+       memset(rthdr, 0, rtap_len);
+
+       /* radiotap header, set always present flags */
+       rthdr->it_present =
+               cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
+                           (1 << IEEE80211_RADIOTAP_RATE) |
+                           (1 << IEEE80211_RADIOTAP_CHANNEL) |
+                           (1 << IEEE80211_RADIOTAP_ANTENNA) |
+                           (1 << IEEE80211_RADIOTAP_RX_FLAGS));
+       rthdr->it_len = cpu_to_le16(rtap_len);
+
+       pos = (unsigned char *)(rthdr+1);
+
+       /* the order of the following fields is important */
+
+       /* IEEE80211_RADIOTAP_TSFT */
+       if (status->flag & RX_FLAG_TSFT) {
+               *(__le64 *)pos = cpu_to_le64(status->mactime);
+               rthdr->it_present |=
+                       cpu_to_le32(1 << IEEE80211_RADIOTAP_TSFT);
+               pos += 8;
+       }
+
+       /* IEEE80211_RADIOTAP_FLAGS */
+       if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
+               *pos |= IEEE80211_RADIOTAP_F_FCS;
+       pos++;
+
+       /* IEEE80211_RADIOTAP_RATE */
+       *pos = rate->bitrate / 5;
+       pos++;
+
+       /* IEEE80211_RADIOTAP_CHANNEL */
+       *(__le16 *)pos = cpu_to_le16(status->freq);
+       pos += 2;
+       if (status->band == IEEE80211_BAND_5GHZ)
+               *(__le16 *)pos = cpu_to_le16(IEEE80211_CHAN_OFDM |
+                                            IEEE80211_CHAN_5GHZ);
+       else
+               *(__le16 *)pos = cpu_to_le16(IEEE80211_CHAN_DYN |
+                                            IEEE80211_CHAN_2GHZ);
+       pos += 2;
+
+       /* IEEE80211_RADIOTAP_DBM_ANTSIGNAL */
+       if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
+               *pos = status->signal;
+               rthdr->it_present |=
+                       cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
+               pos++;
+       }
+
+       /* IEEE80211_RADIOTAP_DBM_ANTNOISE */
+       if (local->hw.flags & IEEE80211_HW_NOISE_DBM) {
+               *pos = status->noise;
+               rthdr->it_present |=
+                       cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTNOISE);
+               pos++;
+       }
+
+       /* IEEE80211_RADIOTAP_LOCK_QUALITY is missing */
+
+       /* IEEE80211_RADIOTAP_ANTENNA */
+       *pos = status->antenna;
+       pos++;
+
+       /* IEEE80211_RADIOTAP_DB_ANTSIGNAL */
+       if (local->hw.flags & IEEE80211_HW_SIGNAL_DB) {
+               *pos = status->signal;
+               rthdr->it_present |=
+                       cpu_to_le32(1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL);
+               pos++;
+       }
+
+       /* IEEE80211_RADIOTAP_DB_ANTNOISE is not used */
+
+       /* IEEE80211_RADIOTAP_RX_FLAGS */
+       /* ensure 2 byte alignment for the 2 byte field as required */
+       if ((pos - (unsigned char *)rthdr) & 1)
+               pos++;
+       /* FIXME: when radiotap gets a 'bad PLCP' flag use it here */
+       if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
+               *(__le16 *)pos |= cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADFCS);
+       pos += 2;
+}
+
 /*
  * This function copies a received frame to all monitor interfaces and
  * returns a cleaned-up SKB that no longer includes the FCS nor the
@@ -89,17 +214,6 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 {
        struct ieee80211_sub_if_data *sdata;
        int needed_headroom = 0;
-       struct ieee80211_radiotap_header *rthdr;
-       __le64 *rttsft = NULL;
-       struct ieee80211_rtap_fixed_data {
-               u8 flags;
-               u8 rate;
-               __le16 chan_freq;
-               __le16 chan_flags;
-               u8 antsignal;
-               u8 padding_for_rxflags;
-               __le16 rx_flags;
-       } __attribute__ ((packed)) *rtfixed;
        struct sk_buff *skb, *skb2;
        struct net_device *prev_dev = NULL;
        int present_fcs_len = 0;
@@ -116,8 +230,8 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
        if (status->flag & RX_FLAG_RADIOTAP)
                rtap_len = ieee80211_get_radiotap_len(origskb->data);
        else
-               /* room for radiotap header, always present fields and TSFT */
-               needed_headroom = sizeof(*rthdr) + sizeof(*rtfixed) + 8;
+               /* room for the radiotap header based on driver features */
+               needed_headroom = ieee80211_rx_radiotap_len(local, status);
 
        if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
                present_fcs_len = FCS_LEN;
@@ -163,55 +277,9 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
        }
 
        /* if necessary, prepend radiotap information */
-       if (!(status->flag & RX_FLAG_RADIOTAP)) {
-               rtfixed = (void *) skb_push(skb, sizeof(*rtfixed));
-               rtap_len = sizeof(*rthdr) + sizeof(*rtfixed);
-               if (status->flag & RX_FLAG_TSFT) {
-                       rttsft = (void *) skb_push(skb, sizeof(*rttsft));
-                       rtap_len += 8;
-               }
-               rthdr = (void *) skb_push(skb, sizeof(*rthdr));
-               memset(rthdr, 0, sizeof(*rthdr));
-               memset(rtfixed, 0, sizeof(*rtfixed));
-               rthdr->it_present =
-                       cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
-                                   (1 << IEEE80211_RADIOTAP_RATE) |
-                                   (1 << IEEE80211_RADIOTAP_CHANNEL) |
-                                   (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) |
-                                   (1 << IEEE80211_RADIOTAP_RX_FLAGS));
-               rtfixed->flags = 0;
-               if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
-                       rtfixed->flags |= IEEE80211_RADIOTAP_F_FCS;
-
-               if (rttsft) {
-                       *rttsft = cpu_to_le64(status->mactime);
-                       rthdr->it_present |=
-                               cpu_to_le32(1 << IEEE80211_RADIOTAP_TSFT);
-               }
-
-               /* FIXME: when radiotap gets a 'bad PLCP' flag use it here */
-               rtfixed->rx_flags = 0;
-               if (status->flag &
-                   (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
-                       rtfixed->rx_flags |=
-                               cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADFCS);
-
-               rtfixed->rate = rate->bitrate / 5;
-
-               rtfixed->chan_freq = cpu_to_le16(status->freq);
-
-               if (status->band == IEEE80211_BAND_5GHZ)
-                       rtfixed->chan_flags =
-                               cpu_to_le16(IEEE80211_CHAN_OFDM |
-                                           IEEE80211_CHAN_5GHZ);
-               else
-                       rtfixed->chan_flags =
-                               cpu_to_le16(IEEE80211_CHAN_DYN |
-                                           IEEE80211_CHAN_2GHZ);
-
-               rtfixed->antsignal = status->ssi;
-               rthdr->it_len = cpu_to_le16(rtap_len);
-       }
+       if (!(status->flag & RX_FLAG_RADIOTAP))
+               ieee80211_add_rx_radiotap_header(local, skb, status, rate,
+                                                needed_headroom);
 
        skb_reset_mac_header(skb);
        skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -251,7 +319,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 }
 
 
-static void ieee80211_parse_qos(struct ieee80211_txrx_data *rx)
+static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
 {
        u8 *data = rx->skb->data;
        int tid;
@@ -262,9 +330,9 @@ static void ieee80211_parse_qos(struct ieee80211_txrx_data *rx)
                /* frame has qos control */
                tid = qc[0] & QOS_CONTROL_TID_MASK;
                if (qc[0] & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT)
-                       rx->flags |= IEEE80211_TXRXD_RX_AMSDU;
+                       rx->flags |= IEEE80211_RX_AMSDU;
                else
-                       rx->flags &= ~IEEE80211_TXRXD_RX_AMSDU;
+                       rx->flags &= ~IEEE80211_RX_AMSDU;
        } else {
                if (unlikely((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)) {
                        /* Separate TID for management frames */
@@ -275,18 +343,13 @@ static void ieee80211_parse_qos(struct ieee80211_txrx_data *rx)
                }
        }
 
-       I802_DEBUG_INC(rx->local->wme_rx_queue[tid]);
-       /* only a debug counter, sta might not be assigned properly yet */
-       if (rx->sta)
-               I802_DEBUG_INC(rx->sta->wme_rx_queue[tid]);
-
-       rx->u.rx.queue = tid;
+       rx->queue = tid;
        /* Set skb->priority to 1d tag if highest order bit of TID is not set.
         * For now, set skb->priority to 0 for other cases. */
        rx->skb->priority = (tid > 7) ? 0 : tid;
 }
 
-static void ieee80211_verify_ip_alignment(struct ieee80211_txrx_data *rx)
+static void ieee80211_verify_ip_alignment(struct ieee80211_rx_data *rx)
 {
 #ifdef CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT
        int hdrlen;
@@ -314,75 +377,33 @@ static void ieee80211_verify_ip_alignment(struct ieee80211_txrx_data *rx)
         * to move the 802.11 header further back in that case.
         */
        hdrlen = ieee80211_get_hdrlen(rx->fc);
-       if (rx->flags & IEEE80211_TXRXD_RX_AMSDU)
+       if (rx->flags & IEEE80211_RX_AMSDU)
                hdrlen += ETH_HLEN;
        WARN_ON_ONCE(((unsigned long)(rx->skb->data + hdrlen)) & 3);
 #endif
 }
 
 
-static u32 ieee80211_rx_load_stats(struct ieee80211_local *local,
-                                  struct sk_buff *skb,
-                                  struct ieee80211_rx_status *status,
-                                  struct ieee80211_rate *rate)
-{
-       struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-       u32 load = 0, hdrtime;
-
-       /* Estimate total channel use caused by this frame */
-
-       /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
-        * 1 usec = 1/8 * (1080 / 10) = 13.5 */
-
-       if (status->band == IEEE80211_BAND_5GHZ ||
-           (status->band == IEEE80211_BAND_5GHZ &&
-            rate->flags & IEEE80211_RATE_ERP_G))
-               hdrtime = CHAN_UTIL_HDR_SHORT;
-       else
-               hdrtime = CHAN_UTIL_HDR_LONG;
-
-       load = hdrtime;
-       if (!is_multicast_ether_addr(hdr->addr1))
-               load += hdrtime;
-
-       /* TODO: optimise again */
-       load += skb->len * CHAN_UTIL_RATE_LCM / rate->bitrate;
-
-       /* Divide channel_use by 8 to avoid wrapping around the counter */
-       load >>= CHAN_UTIL_SHIFT;
-
-       return load;
-}
-
 /* rx handlers */
 
 static ieee80211_rx_result
-ieee80211_rx_h_if_stats(struct ieee80211_txrx_data *rx)
-{
-       if (rx->sta)
-               rx->sta->channel_use_raw += rx->u.rx.load;
-       rx->sdata->channel_use_raw += rx->u.rx.load;
-       return RX_CONTINUE;
-}
-
-static ieee80211_rx_result
-ieee80211_rx_h_passive_scan(struct ieee80211_txrx_data *rx)
+ieee80211_rx_h_passive_scan(struct ieee80211_rx_data *rx)
 {
        struct ieee80211_local *local = rx->local;
        struct sk_buff *skb = rx->skb;
 
        if (unlikely(local->sta_hw_scanning))
-               return ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status);
+               return ieee80211_sta_rx_scan(rx->dev, skb, rx->status);
 
        if (unlikely(local->sta_sw_scanning)) {
                /* drop all the other packets during a software scan anyway */
-               if (ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status)
+               if (ieee80211_sta_rx_scan(rx->dev, skb, rx->status)
                    != RX_QUEUED)
                        dev_kfree_skb(skb);
                return RX_QUEUED;
        }
 
-       if (unlikely(rx->flags & IEEE80211_TXRXD_RXIN_SCAN)) {
+       if (unlikely(rx->flags & IEEE80211_RX_IN_SCAN)) {
                /* scanning finished during invoking of handlers */
                I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
                return RX_DROP_UNUSABLE;
@@ -391,13 +412,14 @@ ieee80211_rx_h_passive_scan(struct ieee80211_txrx_data *rx)
        return RX_CONTINUE;
 }
 
-#ifdef CONFIG_MAC80211_MESH
-#define msh_h_get(h, l) ((struct ieee80211s_hdr *) ((u8 *)h + l))
 static ieee80211_rx_result
-ieee80211_rx_mesh_check(struct ieee80211_txrx_data *rx)
+ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
 {
        int hdrlen = ieee80211_get_hdrlen(rx->fc);
        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
+
+#define msh_h_get(h, l) ((struct ieee80211s_hdr *) ((u8 *)h + l))
+
        if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) {
                if (!((rx->fc & IEEE80211_FCTL_FROMDS) &&
                      (rx->fc & IEEE80211_FCTL_TODS)))
@@ -410,8 +432,9 @@ ieee80211_rx_mesh_check(struct ieee80211_txrx_data *rx)
         * establisment frame, beacon or probe, drop the frame.
         */
 
-       if (!rx->sta || rx->sta->plink_state != ESTAB) {
+       if (!rx->sta || sta_plink_state(rx->sta) != PLINK_ESTAB) {
                struct ieee80211_mgmt *mgmt;
+
                if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT)
                        return RX_DROP_MONITOR;
 
@@ -431,24 +454,17 @@ ieee80211_rx_mesh_check(struct ieee80211_txrx_data *rx)
                }
 
         } else if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
-                   is_broadcast_ether_addr(hdr->addr1) &&
+                   is_multicast_ether_addr(hdr->addr1) &&
                    mesh_rmc_check(hdr->addr4, msh_h_get(hdr, hdrlen), rx->dev))
                return RX_DROP_MONITOR;
-       else
-               return RX_CONTINUE;
-}
 #undef msh_h_get
-#else
-static inline ieee80211_rx_result
-ieee80211_rx_mesh_check(struct ieee80211_txrx_data *rx)
-{
+
        return RX_CONTINUE;
 }
-#endif
 
 
 static ieee80211_rx_result
-ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
+ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
 {
        struct ieee80211_hdr *hdr;
 
@@ -457,15 +473,15 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
        /* Drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.2.9) */
        if (rx->sta && !is_multicast_ether_addr(hdr->addr1)) {
                if (unlikely(rx->fc & IEEE80211_FCTL_RETRY &&
-                            rx->sta->last_seq_ctrl[rx->u.rx.queue] ==
+                            rx->sta->last_seq_ctrl[rx->queue] ==
                             hdr->seq_ctrl)) {
-                       if (rx->flags & IEEE80211_TXRXD_RXRA_MATCH) {
+                       if (rx->flags & IEEE80211_RX_RA_MATCH) {
                                rx->local->dot11FrameDuplicateCount++;
                                rx->sta->num_duplicates++;
                        }
                        return RX_DROP_MONITOR;
                } else
-                       rx->sta->last_seq_ctrl[rx->u.rx.queue] = hdr->seq_ctrl;
+                       rx->sta->last_seq_ctrl[rx->queue] = hdr->seq_ctrl;
        }
 
        if (unlikely(rx->skb->len < 16)) {
@@ -489,11 +505,11 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
                      ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL &&
                       (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)) &&
                     rx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
-                    (!rx->sta || !(rx->sta->flags & WLAN_STA_ASSOC)))) {
+                    (!rx->sta || !test_sta_flags(rx->sta, WLAN_STA_ASSOC)))) {
                if ((!(rx->fc & IEEE80211_FCTL_FROMDS) &&
                     !(rx->fc & IEEE80211_FCTL_TODS) &&
                     (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
-                   || !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
+                   || !(rx->flags & IEEE80211_RX_RA_MATCH)) {
                        /* Drop IBSS frames and frames for other hosts
                         * silently. */
                        return RX_DROP_MONITOR;
@@ -507,7 +523,7 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
 
 
 static ieee80211_rx_result
-ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
+ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
 {
        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
        int keyidx;
@@ -548,7 +564,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
         * No point in finding a key and decrypting if the frame is neither
         * addressed to us nor a multicast frame.
         */
-       if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+       if (!(rx->flags & IEEE80211_RX_RA_MATCH))
                return RX_CONTINUE;
 
        if (rx->sta)
@@ -566,8 +582,8 @@ ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
                 * we somehow allow the driver to tell us which key
                 * the hardware used if this flag is set?
                 */
-               if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
-                   (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED))
+               if ((rx->status->flag & RX_FLAG_DECRYPTED) &&
+                   (rx->status->flag & RX_FLAG_IV_STRIPPED))
                        return RX_CONTINUE;
 
                hdrlen = ieee80211_get_hdrlen(rx->fc);
@@ -608,8 +624,8 @@ ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
        /* Check for weak IVs if possible */
        if (rx->sta && rx->key->conf.alg == ALG_WEP &&
            ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
-           (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) ||
-            !(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) &&
+           (!(rx->status->flag & RX_FLAG_IV_STRIPPED) ||
+            !(rx->status->flag & RX_FLAG_DECRYPTED)) &&
            ieee80211_wep_is_weak_iv(rx->skb, rx->key))
                rx->sta->wep_weak_iv_count++;
 
@@ -626,7 +642,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
        }
 
        /* either the frame has been decrypted or will be dropped */
-       rx->u.rx.status->flag |= RX_FLAG_DECRYPTED;
+       rx->status->flag |= RX_FLAG_DECRYPTED;
 
        return result;
 }
@@ -636,12 +652,11 @@ static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta)
        struct ieee80211_sub_if_data *sdata;
        DECLARE_MAC_BUF(mac);
 
-       sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+       sdata = sta->sdata;
 
        if (sdata->bss)
                atomic_inc(&sdata->bss->num_sta_ps);
-       sta->flags |= WLAN_STA_PS;
-       sta->flags &= ~WLAN_STA_PSPOLL;
+       set_and_clear_sta_flags(sta, WLAN_STA_PS, WLAN_STA_PSPOLL);
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
        printk(KERN_DEBUG "%s: STA %s aid %d enters power save mode\n",
               dev->name, print_mac(mac, sta->addr), sta->aid);
@@ -654,15 +669,15 @@ static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
        struct sk_buff *skb;
        int sent = 0;
        struct ieee80211_sub_if_data *sdata;
-       struct ieee80211_tx_packet_data *pkt_data;
+       struct ieee80211_tx_info *info;
        DECLARE_MAC_BUF(mac);
 
-       sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+       sdata = sta->sdata;
 
        if (sdata->bss)
                atomic_dec(&sdata->bss->num_sta_ps);
 
-       sta->flags &= ~(WLAN_STA_PS | WLAN_STA_PSPOLL);
+       clear_sta_flags(sta, WLAN_STA_PS | WLAN_STA_PSPOLL);
 
        if (!skb_queue_empty(&sta->ps_tx_buf))
                sta_info_clear_tim_bit(sta);
@@ -674,13 +689,13 @@ static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
 
        /* Send all buffered frames to the station */
        while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
-               pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+               info = IEEE80211_SKB_CB(skb);
                sent++;
-               pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
+               info->flags |= IEEE80211_TX_CTL_REQUEUE;
                dev_queue_xmit(skb);
        }
        while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
-               pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+               info = IEEE80211_SKB_CB(skb);
                local->total_ps_buffered--;
                sent++;
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
@@ -688,7 +703,7 @@ static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
                       "since STA not sleeping anymore\n", dev->name,
                       print_mac(mac, sta->addr), sta->aid);
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-               pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
+               info->flags |= IEEE80211_TX_CTL_REQUEUE;
                dev_queue_xmit(skb);
        }
 
@@ -696,7 +711,7 @@ static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
 }
 
 static ieee80211_rx_result
-ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx)
+ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 {
        struct sta_info *sta = rx->sta;
        struct net_device *dev = rx->dev;
@@ -725,21 +740,22 @@ ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx)
                sta->last_rx = jiffies;
        }
 
-       if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+       if (!(rx->flags & IEEE80211_RX_RA_MATCH))
                return RX_CONTINUE;
 
        sta->rx_fragments++;
        sta->rx_bytes += rx->skb->len;
-       sta->last_rssi = rx->u.rx.status->ssi;
-       sta->last_signal = rx->u.rx.status->signal;
-       sta->last_noise = rx->u.rx.status->noise;
+       sta->last_signal = rx->status->signal;
+       sta->last_qual = rx->status->qual;
+       sta->last_noise = rx->status->noise;
 
        if (!(rx->fc & IEEE80211_FCTL_MOREFRAGS)) {
                /* Change STA power saving mode only in the end of a frame
                 * exchange sequence */
-               if ((sta->flags & WLAN_STA_PS) && !(rx->fc & IEEE80211_FCTL_PM))
-                       rx->u.rx.sent_ps_buffered += ap_sta_ps_end(dev, sta);
-               else if (!(sta->flags & WLAN_STA_PS) &&
+               if (test_sta_flags(sta, WLAN_STA_PS) &&
+                   !(rx->fc & IEEE80211_FCTL_PM))
+                       rx->sent_ps_buffered += ap_sta_ps_end(dev, sta);
+               else if (!test_sta_flags(sta, WLAN_STA_PS) &&
                         (rx->fc & IEEE80211_FCTL_PM))
                        ap_sta_ps_start(dev, sta);
        }
@@ -843,7 +859,7 @@ ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
 }
 
 static ieee80211_rx_result
-ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
+ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
 {
        struct ieee80211_hdr *hdr;
        u16 sc;
@@ -869,14 +885,14 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
        if (frag == 0) {
                /* This is the first fragment of a new frame. */
                entry = ieee80211_reassemble_add(rx->sdata, frag, seq,
-                                                rx->u.rx.queue, &(rx->skb));
+                                                rx->queue, &(rx->skb));
                if (rx->key && rx->key->conf.alg == ALG_CCMP &&
                    (rx->fc & IEEE80211_FCTL_PROTECTED)) {
                        /* Store CCMP PN so that we can verify that the next
                         * fragment has a sequential PN value. */
                        entry->ccmp = 1;
                        memcpy(entry->last_pn,
-                              rx->key->u.ccmp.rx_pn[rx->u.rx.queue],
+                              rx->key->u.ccmp.rx_pn[rx->queue],
                               CCMP_PN_LEN);
                }
                return RX_QUEUED;
@@ -886,7 +902,7 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
         * fragment cache. Add this fragment to the end of the pending entry.
         */
        entry = ieee80211_reassemble_find(rx->sdata, rx->fc, frag, seq,
-                                         rx->u.rx.queue, hdr);
+                                         rx->queue, hdr);
        if (!entry) {
                I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
                return RX_DROP_MONITOR;
@@ -905,7 +921,7 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
                        if (pn[i])
                                break;
                }
-               rpn = rx->key->u.ccmp.rx_pn[rx->u.rx.queue];
+               rpn = rx->key->u.ccmp.rx_pn[rx->queue];
                if (memcmp(pn, rpn, CCMP_PN_LEN) != 0) {
                        if (net_ratelimit())
                                printk(KERN_DEBUG "%s: defrag: CCMP PN not "
@@ -946,7 +962,7 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
        }
 
        /* Complete frame has been reassembled - process it now */
-       rx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+       rx->flags |= IEEE80211_RX_FRAGMENTED;
 
  out:
        if (rx->sta)
@@ -959,7 +975,7 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
 }
 
 static ieee80211_rx_result
-ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
+ieee80211_rx_h_ps_poll(struct ieee80211_rx_data *rx)
 {
        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
        struct sk_buff *skb;
@@ -969,7 +985,7 @@ 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->flags & IEEE80211_TXRXD_RXRA_MATCH)))
+                  !(rx->flags & IEEE80211_RX_RA_MATCH)))
                return RX_CONTINUE;
 
        if ((sdata->vif.type != IEEE80211_IF_TYPE_AP) &&
@@ -993,7 +1009,7 @@ ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
                 * Tell TX path to send one frame even though the STA may
                 * still remain is PS mode after this frame exchange.
                 */
-               rx->sta->flags |= WLAN_STA_PSPOLL;
+               set_sta_flags(rx->sta, WLAN_STA_PSPOLL);
 
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
                printk(KERN_DEBUG "STA %s aid %d: PS Poll (entries after %d)\n",
@@ -1013,7 +1029,7 @@ ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
                if (no_pending_pkts)
                        sta_info_clear_tim_bit(rx->sta);
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
-       } else if (!rx->u.rx.sent_ps_buffered) {
+       } else if (!rx->sent_ps_buffered) {
                /*
                 * FIXME: This can be the result of a race condition between
                 *        us expiring a frame and the station polling for it.
@@ -1034,7 +1050,7 @@ ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
 }
 
 static ieee80211_rx_result
-ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx)
+ieee80211_rx_h_remove_qos_control(struct ieee80211_rx_data *rx)
 {
        u16 fc = rx->fc;
        u8 *data = rx->skb->data;
@@ -1054,9 +1070,10 @@ ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx)
 }
 
 static int
-ieee80211_802_1x_port_control(struct ieee80211_txrx_data *rx)
+ieee80211_802_1x_port_control(struct ieee80211_rx_data *rx)
 {
-       if (unlikely(!rx->sta || !(rx->sta->flags & WLAN_STA_AUTHORIZED))) {
+       if (unlikely(!rx->sta ||
+           !test_sta_flags(rx->sta, WLAN_STA_AUTHORIZED))) {
 #ifdef CONFIG_MAC80211_DEBUG
                if (net_ratelimit())
                        printk(KERN_DEBUG "%s: dropped frame "
@@ -1069,37 +1086,34 @@ ieee80211_802_1x_port_control(struct ieee80211_txrx_data *rx)
 }
 
 static int
-ieee80211_drop_unencrypted(struct ieee80211_txrx_data *rx)
+ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx)
 {
        /*
         * Pass through unencrypted frames if the hardware has
         * decrypted them already.
         */
-       if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED)
+       if (rx->status->flag & RX_FLAG_DECRYPTED)
                return 0;
 
        /* Drop unencrypted frames if key is set. */
        if (unlikely(!(rx->fc & IEEE80211_FCTL_PROTECTED) &&
                     (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
                     (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
-                    (rx->key || rx->sdata->drop_unencrypted))) {
-               if (net_ratelimit())
-                       printk(KERN_DEBUG "%s: RX non-WEP frame, but expected "
-                              "encryption\n", rx->dev->name);
+                    (rx->key || rx->sdata->drop_unencrypted)))
                return -EACCES;
-       }
+
        return 0;
 }
 
 static int
-ieee80211_data_to_8023(struct ieee80211_txrx_data *rx)
+ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
 {
        struct net_device *dev = rx->dev;
        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
        u16 fc, hdrlen, ethertype;
        u8 *payload;
        u8 dst[ETH_ALEN];
-       u8 src[ETH_ALEN];
+       u8 src[ETH_ALEN] __aligned(2);
        struct sk_buff *skb = rx->skb;
        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
        DECLARE_MAC_BUF(mac);
@@ -1240,9 +1254,9 @@ ieee80211_data_to_8023(struct ieee80211_txrx_data *rx)
 /*
  * requires that rx->skb is a frame with ethernet header
  */
-static bool ieee80211_frame_allowed(struct ieee80211_txrx_data *rx)
+static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx)
 {
-       static const u8 pae_group_addr[ETH_ALEN]
+       static const u8 pae_group_addr[ETH_ALEN] __aligned(2)
                = { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x03 };
        struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data;
 
@@ -1266,7 +1280,7 @@ static bool ieee80211_frame_allowed(struct ieee80211_txrx_data *rx)
  * requires that rx->skb is a frame with ethernet header
  */
 static void
-ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
+ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
 {
        struct net_device *dev = rx->dev;
        struct ieee80211_local *local = rx->local;
@@ -1280,7 +1294,7 @@ ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
 
        if (local->bridge_packets && (sdata->vif.type == IEEE80211_IF_TYPE_AP ||
                                      sdata->vif.type == IEEE80211_IF_TYPE_VLAN) &&
-           (rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
+           (rx->flags & IEEE80211_RX_RA_MATCH)) {
                if (is_multicast_ether_addr(ehdr->h_dest)) {
                        /*
                         * send multicast frames both to higher layers in
@@ -1292,7 +1306,7 @@ ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
                                       "multicast frame\n", dev->name);
                } else {
                        dsta = sta_info_get(local, skb->data);
-                       if (dsta && dsta->dev == dev) {
+                       if (dsta && dsta->sdata->dev == dev) {
                                /*
                                 * The destination station is associated to
                                 * this AP (in this VLAN), so send the frame
@@ -1302,8 +1316,6 @@ ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
                                xmit_skb = skb;
                                skb = NULL;
                        }
-                       if (dsta)
-                               sta_info_put(dsta);
                }
        }
 
@@ -1315,11 +1327,11 @@ ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
                if (is_multicast_ether_addr(skb->data)) {
                        if (*mesh_ttl > 0) {
                                xmit_skb = skb_copy(skb, GFP_ATOMIC);
-                               if (!xmit_skb && net_ratelimit())
+                               if (xmit_skb)
+                                       xmit_skb->pkt_type = PACKET_OTHERHOST;
+                               else if (net_ratelimit())
                                        printk(KERN_DEBUG "%s: failed to clone "
                                               "multicast frame\n", dev->name);
-                               else
-                                       xmit_skb->pkt_type = PACKET_OTHERHOST;
                        } else
                                IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.sta,
                                                             dropped_frames_ttl);
@@ -1356,7 +1368,7 @@ ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
 }
 
 static ieee80211_rx_result
-ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
+ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
 {
        struct net_device *dev = rx->dev;
        struct ieee80211_local *local = rx->local;
@@ -1376,7 +1388,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
        if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
                return RX_DROP_MONITOR;
 
-       if (!(rx->flags & IEEE80211_TXRXD_RX_AMSDU))
+       if (!(rx->flags & IEEE80211_RX_AMSDU))
                return RX_CONTINUE;
 
        err = ieee80211_data_to_8023(rx);
@@ -1405,7 +1417,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
                padding = ((4 - subframe_len) & 0x3);
                /* the last MSDU has no padding */
                if (subframe_len > remaining) {
-                       printk(KERN_DEBUG "%s: wrong buffer size", dev->name);
+                       printk(KERN_DEBUG "%s: wrong buffer size\n", dev->name);
                        return RX_DROP_UNUSABLE;
                }
 
@@ -1428,7 +1440,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
                        eth = (struct ethhdr *) skb_pull(skb, ntohs(len) +
                                                        padding);
                        if (!eth) {
-                               printk(KERN_DEBUG "%s: wrong buffer size ",
+                               printk(KERN_DEBUG "%s: wrong buffer size\n",
                                       dev->name);
                                dev_kfree_skb(frame);
                                return RX_DROP_UNUSABLE;
@@ -1473,7 +1485,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
 }
 
 static ieee80211_rx_result
-ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
+ieee80211_rx_h_data(struct ieee80211_rx_data *rx)
 {
        struct net_device *dev = rx->dev;
        u16 fc;
@@ -1504,7 +1516,7 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
 }
 
 static ieee80211_rx_result
-ieee80211_rx_h_ctrl(struct ieee80211_txrx_data *rx)
+ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx)
 {
        struct ieee80211_local *local = rx->local;
        struct ieee80211_hw *hw = &local->hw;
@@ -1521,9 +1533,10 @@ ieee80211_rx_h_ctrl(struct ieee80211_txrx_data *rx)
                if (!rx->sta)
                        return RX_CONTINUE;
                tid = le16_to_cpu(bar->control) >> 12;
-               tid_agg_rx = &(rx->sta->ampdu_mlme.tid_rx[tid]);
-               if (tid_agg_rx->state != HT_AGG_STATE_OPERATIONAL)
+               if (rx->sta->ampdu_mlme.tid_state_rx[tid]
+                                       != HT_AGG_STATE_OPERATIONAL)
                        return RX_CONTINUE;
+               tid_agg_rx = rx->sta->ampdu_mlme.tid_rx[tid];
 
                start_seq_num = le16_to_cpu(bar->start_seq_num) >> 4;
 
@@ -1547,11 +1560,11 @@ ieee80211_rx_h_ctrl(struct ieee80211_txrx_data *rx)
 }
 
 static ieee80211_rx_result
-ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
+ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx)
 {
        struct ieee80211_sub_if_data *sdata;
 
-       if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+       if (!(rx->flags & IEEE80211_RX_RA_MATCH))
                return RX_DROP_MONITOR;
 
        sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
@@ -1559,7 +1572,7 @@ ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
             sdata->vif.type == IEEE80211_IF_TYPE_IBSS ||
             sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) &&
            !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
-               ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->u.rx.status);
+               ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->status);
        else
                return RX_DROP_MONITOR;
 
@@ -1568,7 +1581,7 @@ ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
 
 static void ieee80211_rx_michael_mic_report(struct net_device *dev,
                                            struct ieee80211_hdr *hdr,
-                                           struct ieee80211_txrx_data *rx)
+                                           struct ieee80211_rx_data *rx)
 {
        int keyidx, hdrlen;
        DECLARE_MAC_BUF(mac);
@@ -1638,7 +1651,8 @@ static void ieee80211_rx_michael_mic_report(struct net_device *dev,
        rx->skb = NULL;
 }
 
-static void ieee80211_rx_cooked_monitor(struct ieee80211_txrx_data *rx)
+/* TODO: use IEEE80211_RX_FRAGMENTED */
+static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx)
 {
        struct ieee80211_sub_if_data *sdata;
        struct ieee80211_local *local = rx->local;
@@ -1651,9 +1665,9 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_txrx_data *rx)
        } __attribute__ ((packed)) *rthdr;
        struct sk_buff *skb = rx->skb, *skb2;
        struct net_device *prev_dev = NULL;
-       struct ieee80211_rx_status *status = rx->u.rx.status;
+       struct ieee80211_rx_status *status = rx->status;
 
-       if (rx->flags & IEEE80211_TXRXD_RX_CMNTR_REPORTED)
+       if (rx->flags & IEEE80211_RX_CMNTR_REPORTED)
                goto out_free_skb;
 
        if (skb_headroom(skb) < sizeof(*rthdr) &&
@@ -1668,7 +1682,7 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_txrx_data *rx)
                            (1 << IEEE80211_RADIOTAP_RATE) |
                            (1 << IEEE80211_RADIOTAP_CHANNEL));
 
-       rthdr->rate = rx->u.rx.rate->bitrate / 5;
+       rthdr->rate = rx->rate->bitrate / 5;
        rthdr->chan_freq = cpu_to_le16(status->freq);
 
        if (status->band == IEEE80211_BAND_5GHZ)
@@ -1711,17 +1725,16 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_txrx_data *rx)
        } else
                goto out_free_skb;
 
-       rx->flags |= IEEE80211_TXRXD_RX_CMNTR_REPORTED;
+       rx->flags |= IEEE80211_RX_CMNTR_REPORTED;
        return;
 
  out_free_skb:
        dev_kfree_skb(skb);
 }
 
-typedef ieee80211_rx_result (*ieee80211_rx_handler)(struct ieee80211_txrx_data *);
+typedef ieee80211_rx_result (*ieee80211_rx_handler)(struct ieee80211_rx_data *);
 static ieee80211_rx_handler ieee80211_rx_handlers[] =
 {
-       ieee80211_rx_h_if_stats,
        ieee80211_rx_h_passive_scan,
        ieee80211_rx_h_check,
        ieee80211_rx_h_decrypt,
@@ -1742,7 +1755,7 @@ static ieee80211_rx_handler ieee80211_rx_handlers[] =
 };
 
 static void ieee80211_invoke_rx_handlers(struct ieee80211_sub_if_data *sdata,
-                                        struct ieee80211_txrx_data *rx,
+                                        struct ieee80211_rx_data *rx,
                                         struct sk_buff *skb)
 {
        ieee80211_rx_handler *handler;
@@ -1785,7 +1798,7 @@ static void ieee80211_invoke_rx_handlers(struct ieee80211_sub_if_data *sdata,
 /* main receive path */
 
 static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
-                               u8 *bssid, struct ieee80211_txrx_data *rx,
+                               u8 *bssid, struct ieee80211_rx_data *rx,
                                struct ieee80211_hdr *hdr)
 {
        int multicast = is_multicast_ether_addr(hdr->addr1);
@@ -1795,36 +1808,42 @@ 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->flags & IEEE80211_TXRXD_RXIN_SCAN))
+                       if (!(rx->flags & IEEE80211_RX_IN_SCAN))
                                return 0;
-                       rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+                       rx->flags &= ~IEEE80211_RX_RA_MATCH;
                } else if (!multicast &&
                           compare_ether_addr(sdata->dev->dev_addr,
                                              hdr->addr1) != 0) {
                        if (!(sdata->dev->flags & IFF_PROMISC))
                                return 0;
-                       rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+                       rx->flags &= ~IEEE80211_RX_RA_MATCH;
                }
                break;
        case IEEE80211_IF_TYPE_IBSS:
                if (!bssid)
                        return 0;
                if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
-                   (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON)
+                   (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) {
+                       if (!rx->sta)
+                               rx->sta = ieee80211_ibss_add_sta(sdata->dev,
+                                               rx->skb, bssid, hdr->addr2,
+                                               BIT(rx->status->rate_idx));
                        return 1;
+               }
                else if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
-                       if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+                       if (!(rx->flags & IEEE80211_RX_IN_SCAN))
                                return 0;
-                       rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+                       rx->flags &= ~IEEE80211_RX_RA_MATCH;
                } else if (!multicast &&
                           compare_ether_addr(sdata->dev->dev_addr,
                                              hdr->addr1) != 0) {
                        if (!(sdata->dev->flags & IFF_PROMISC))
                                return 0;
-                       rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+                       rx->flags &= ~IEEE80211_RX_RA_MATCH;
                } else if (!rx->sta)
                        rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb,
-                                                        bssid, hdr->addr2);
+                                               bssid, hdr->addr2,
+                                               BIT(rx->status->rate_idx));
                break;
        case IEEE80211_IF_TYPE_MESH_POINT:
                if (!multicast &&
@@ -1833,7 +1852,7 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
                        if (!(sdata->dev->flags & IFF_PROMISC))
                                return 0;
 
-                       rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+                       rx->flags &= ~IEEE80211_RX_RA_MATCH;
                }
                break;
        case IEEE80211_IF_TYPE_VLAN:
@@ -1844,12 +1863,12 @@ 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->flags & IEEE80211_TXRXD_RXIN_SCAN))
+                       if (!(rx->flags & IEEE80211_RX_IN_SCAN))
                                return 0;
-                       rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+                       rx->flags &= ~IEEE80211_RX_RA_MATCH;
                }
                if (sdata->dev == sdata->local->mdev &&
-                   !(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+                   !(rx->flags & IEEE80211_RX_IN_SCAN))
                        /* do not receive anything via
                         * master device when not scanning */
                        return 0;
@@ -1880,13 +1899,12 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
                                         struct sk_buff *skb,
                                         struct ieee80211_rx_status *status,
-                                        u32 load,
                                         struct ieee80211_rate *rate)
 {
        struct ieee80211_local *local = hw_to_local(hw);
        struct ieee80211_sub_if_data *sdata;
        struct ieee80211_hdr *hdr;
-       struct ieee80211_txrx_data rx;
+       struct ieee80211_rx_data rx;
        u16 type;
        int prepares;
        struct ieee80211_sub_if_data *prev = NULL;
@@ -1898,9 +1916,8 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
        rx.skb = skb;
        rx.local = local;
 
-       rx.u.rx.status = status;
-       rx.u.rx.load = load;
-       rx.u.rx.rate = rate;
+       rx.status = status;
+       rx.rate = rate;
        rx.fc = le16_to_cpu(hdr->frame_control);
        type = rx.fc & IEEE80211_FCTL_FTYPE;
 
@@ -1909,17 +1926,17 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
 
        rx.sta = sta_info_get(local, hdr->addr2);
        if (rx.sta) {
-               rx.dev = rx.sta->dev;
-               rx.sdata = IEEE80211_DEV_TO_SUB_IF(rx.dev);
+               rx.sdata = rx.sta->sdata;
+               rx.dev = rx.sta->sdata->dev;
        }
 
        if ((status->flag & RX_FLAG_MMIC_ERROR)) {
                ieee80211_rx_michael_mic_report(local->mdev, hdr, &rx);
-               goto end;
+               return;
        }
 
        if (unlikely(local->sta_sw_scanning || local->sta_hw_scanning))
-               rx.flags |= IEEE80211_TXRXD_RXIN_SCAN;
+               rx.flags |= IEEE80211_RX_IN_SCAN;
 
        ieee80211_parse_qos(&rx);
        ieee80211_verify_ip_alignment(&rx);
@@ -1934,7 +1951,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
                        continue;
 
                bssid = ieee80211_get_bssid(hdr, skb->len, sdata->vif.type);
-               rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
+               rx.flags |= IEEE80211_RX_RA_MATCH;
                prepares = prepare_for_handlers(sdata, bssid, &rx, hdr);
 
                if (!prepares)
@@ -1960,7 +1977,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
                if (!skb_new) {
                        if (net_ratelimit())
                                printk(KERN_DEBUG "%s: failed to copy "
-                                      "multicast frame for %s",
+                                      "multicast frame for %s\n",
                                       wiphy_name(local->hw.wiphy),
                                       prev->dev->name);
                        continue;
@@ -1974,10 +1991,6 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
                ieee80211_invoke_rx_handlers(prev, &rx, skb);
        } else
                dev_kfree_skb(skb);
-
- end:
-       if (rx.sta)
-               sta_info_put(rx.sta);
 }
 
 #define SEQ_MODULO 0x1000
@@ -2012,7 +2025,6 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
        struct ieee80211_rx_status status;
        u16 head_seq_num, buf_size;
        int index;
-       u32 pkt_load;
        struct ieee80211_supported_band *sband;
        struct ieee80211_rate *rate;
 
@@ -2047,12 +2059,9 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
                                        sizeof(status));
                                sband = local->hw.wiphy->bands[status.band];
                                rate = &sband->bitrates[status.rate_idx];
-                               pkt_load = ieee80211_rx_load_stats(local,
-                                               tid_agg_rx->reorder_buf[index],
-                                               &status, rate);
                                __ieee80211_rx_handle_packet(hw,
                                        tid_agg_rx->reorder_buf[index],
-                                       &status, pkt_load, rate);
+                                       &status, rate);
                                tid_agg_rx->stored_mpdu_num--;
                                tid_agg_rx->reorder_buf[index] = NULL;
                        }
@@ -2094,11 +2103,8 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
                        sizeof(status));
                sband = local->hw.wiphy->bands[status.band];
                rate = &sband->bitrates[status.rate_idx];
-               pkt_load = ieee80211_rx_load_stats(local,
-                                       tid_agg_rx->reorder_buf[index],
-                                       &status, rate);
                __ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index],
-                                            &status, pkt_load, rate);
+                                            &status, rate);
                tid_agg_rx->stored_mpdu_num--;
                tid_agg_rx->reorder_buf[index] = NULL;
                tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num);
@@ -2115,31 +2121,29 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
        struct sta_info *sta;
        struct tid_ampdu_rx *tid_agg_rx;
-       u16 fc, sc;
+       u16 sc;
        u16 mpdu_seq_num;
-       u8 ret = 0, *qc;
+       u8 ret = 0;
        int tid;
 
        sta = sta_info_get(local, hdr->addr2);
        if (!sta)
                return ret;
 
-       fc = le16_to_cpu(hdr->frame_control);
-
        /* filter the QoS data rx stream according to
         * STA/TID and check if this STA/TID is on aggregation */
-       if (!WLAN_FC_IS_QOS_DATA(fc))
+       if (!ieee80211_is_data_qos(hdr->frame_control))
                goto end_reorder;
 
-       qc = skb->data + ieee80211_get_hdrlen(fc) - QOS_CONTROL_LEN;
-       tid = qc[0] & QOS_CONTROL_TID_MASK;
-       tid_agg_rx = &(sta->ampdu_mlme.tid_rx[tid]);
+       tid = *ieee80211_get_qos_ctl(hdr) & QOS_CONTROL_TID_MASK;
 
-       if (tid_agg_rx->state != HT_AGG_STATE_OPERATIONAL)
+       if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_OPERATIONAL)
                goto end_reorder;
 
+       tid_agg_rx = sta->ampdu_mlme.tid_rx[tid];
+
        /* null data frames are excluded */
-       if (unlikely(fc & IEEE80211_STYPE_NULLFUNC))
+       if (unlikely(ieee80211_is_nullfunc(hdr->frame_control)))
                goto end_reorder;
 
        /* new un-ordered ampdu frame - process it */
@@ -2154,7 +2158,7 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
        /* if this mpdu is fragmented - terminate rx aggregation session */
        sc = le16_to_cpu(hdr->seq_ctrl);
        if (sc & IEEE80211_SCTL_FRAG) {
-               ieee80211_sta_stop_rx_ba_session(sta->dev, sta->addr,
+               ieee80211_sta_stop_rx_ba_session(sta->sdata->dev, sta->addr,
                        tid, 0, WLAN_REASON_QSTA_REQUIRE_SETUP);
                ret = 1;
                goto end_reorder;
@@ -2164,9 +2168,7 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
        mpdu_seq_num = (sc & IEEE80211_SCTL_SEQ) >> 4;
        ret = ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb,
                                                mpdu_seq_num, 0);
-end_reorder:
-       if (sta)
-               sta_info_put(sta);
+ end_reorder:
        return ret;
 }
 
@@ -2178,12 +2180,11 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
                    struct ieee80211_rx_status *status)
 {
        struct ieee80211_local *local = hw_to_local(hw);
-       u32 pkt_load;
        struct ieee80211_rate *rate = NULL;
        struct ieee80211_supported_band *sband;
 
        if (status->band < 0 ||
-           status->band > IEEE80211_NUM_BANDS) {
+           status->band >= IEEE80211_NUM_BANDS) {
                WARN_ON(1);
                return;
        }
@@ -2218,11 +2219,8 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
                return;
        }
 
-       pkt_load = ieee80211_rx_load_stats(local, skb, status, rate);
-       local->channel_use_raw += pkt_load;
-
        if (!ieee80211_rx_reorder_ampdu(local, skb))
-               __ieee80211_rx_handle_packet(hw, skb, status, pkt_load, rate);
+               __ieee80211_rx_handle_packet(hw, skb, status, rate);
 
        rcu_read_unlock();
 }