package/madwifi/patches/300-napi_polling.patch

   1 Index: madwifi-trunk-r3314/ath/if_ath.c
   2 ===================================================================
   3 --- madwifi-trunk-r3314.orig/ath/if_ath.c
   4 +++ madwifi-trunk-r3314/ath/if_ath.c
   5 @@ -184,7 +184,11 @@
   6         struct sk_buff *, int, int, u_int64_t);
   7  static void ath_setdefantenna(struct ath_softc *, u_int);
   8  static struct ath_txq *ath_txq_setup(struct ath_softc *, int, int);
   9 -static void ath_rx_tasklet(TQUEUE_ARG);
  10 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
  11 +static int ath_rx_poll(struct napi_struct *napi, int budget);
  12 +#else
  13 +static int ath_rx_poll(struct net_device *dev, int *budget);
  14 +#endif
  15  static int ath_hardstart(struct sk_buff *, struct net_device *);
  16  static int ath_mgtstart(struct ieee80211com *, struct sk_buff *);
  17  #ifdef ATH_SUPERG_COMP
  18 @@ -376,6 +380,9 @@
  19                 u_int32_t new_clamped_maxtxpower);
  20  static u_int32_t ath_get_real_maxtxpower(struct ath_softc *sc);
  21
  22 +static void ath_poll_disable(struct net_device *dev);
  23 +static void ath_poll_enable(struct net_device *dev);
  24 +
  25  /* calibrate every 30 secs in steady state but check every second at first. */
  26  static int ath_calinterval = ATH_SHORT_CALINTERVAL;
  27  static int ath_countrycode = CTRY_DEFAULT;     /* country code */
  28 @@ -547,7 +554,6 @@
  29
  30         atomic_set(&sc->sc_txbuf_counter, 0);
  31
  32 -       ATH_INIT_TQUEUE(&sc->sc_rxtq,     ath_rx_tasklet,       dev);
  33         ATH_INIT_TQUEUE(&sc->sc_txtq,     ath_tx_tasklet,       dev);
  34         ATH_INIT_TQUEUE(&sc->sc_bmisstq,  ath_bmiss_tasklet,    dev);
  35         ATH_INIT_TQUEUE(&sc->sc_bstucktq, ath_bstuck_tasklet,   dev);
  36 @@ -821,6 +827,12 @@
  37         dev->set_mac_address = ath_set_mac_address;
  38         dev->change_mtu = ath_change_mtu;
  39         dev->tx_queue_len = ATH_TXBUF - ATH_TXBUF_MGT_RESERVED;
  40 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
  41 +       netif_napi_add(dev, &sc->sc_napi, ath_rx_poll, 64);
  42 +#else
  43 +       dev->poll = ath_rx_poll;
  44 +       dev->weight = 64;
  45 +#endif
  46  #ifdef USE_HEADERLEN_RESV
  47         dev->hard_header_len += sizeof(struct ieee80211_qosframe) +
  48                                 sizeof(struct llc) +
  49 @@ -2216,6 +2228,7 @@
  50                 (status & HAL_INT_GLOBAL)       ? " HAL_INT_GLOBAL"     : ""
  51                 );
  52
  53 +       sc->sc_isr = status;
  54         status &= sc->sc_imask;                 /* discard unasked for bits */
  55         /* As soon as we know we have a real interrupt we intend to service,
  56          * we will check to see if we need an initial hardware TSF reading.
  57 @@ -2273,7 +2286,23 @@
  58                 }
  59                 if (status & (HAL_INT_RX | HAL_INT_RXPHY)) {
  60                         ath_uapsd_processtriggers(sc, hw_tsf);
  61 -                       ATH_SCHEDULE_TQUEUE(&sc->sc_rxtq, &needmark);
  62 +                       sc->sc_isr &= ~HAL_INT_RX;
  63 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
  64 +                       if (netif_rx_schedule_prep(dev, &sc->sc_napi))
  65 +#else
  66 +                       if (netif_rx_schedule_prep(dev))
  67 +#endif
  68 +                       {
  69 +#ifndef ATH_PRECISE_TSF
  70 +                               sc->sc_imask &= ~HAL_INT_RX;
  71 +                               ath_hal_intrset(ah, sc->sc_imask);
  72 +#endif
  73 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
  74 +                               __netif_rx_schedule(dev, &sc->sc_napi);
  75 +#else
  76 +                               __netif_rx_schedule(dev);
  77 +#endif
  78 +                       }
  79                 }
  80                 if (status & HAL_INT_TX) {
  81  #ifdef ATH_SUPERG_DYNTURBO
  82 @@ -2299,6 +2328,11 @@
  83                                 }
  84                         }
  85  #endif
  86 +                       /* disable transmit interrupt */
  87 +                       sc->sc_isr &= ~HAL_INT_TX;
  88 +                       ath_hal_intrset(ah, sc->sc_imask & ~HAL_INT_TX);
  89 +                       sc->sc_imask &= ~HAL_INT_TX;
  90 +
  91                         ATH_SCHEDULE_TQUEUE(&sc->sc_txtq, &needmark);
  92                 }
  93                 if (status & HAL_INT_BMISS) {
  94 @@ -2511,6 +2545,7 @@
  95         if (sc->sc_tx99 != NULL)
  96                 sc->sc_tx99->start(sc->sc_tx99);
  97  #endif
  98 +       ath_poll_enable(dev);
  99
 100  done:
 101         ATH_UNLOCK(sc);
 102 @@ -2551,6 +2586,9 @@
 103                 if (sc->sc_tx99 != NULL)
 104                         sc->sc_tx99->stop(sc->sc_tx99);
 105  #endif
 106 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 107 +               ath_poll_disable(dev);
 108 +#endif
 109                 netif_stop_queue(dev);  /* XXX re-enabled by ath_newstate */
 110                 dev->flags &= ~IFF_RUNNING;     /* NB: avoid recursion */
 111                 ieee80211_stop_running(ic);     /* stop all VAPs */
 112 @@ -4009,6 +4047,39 @@
 113         return ath_keyset(sc, k, mac, vap->iv_bss);
 114  }
 115
 116 +static void ath_poll_disable(struct net_device *dev)
 117 +{
 118 +       struct ath_softc *sc = dev->priv;
 119 +
 120 +       /*
 121 +        * XXX Using in_softirq is not right since we might
 122 +        * be called from other soft irq contexts than
 123 +        * ath_rx_poll
 124 +        */
 125 +       if (!in_softirq()) {
 126 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 127 +               napi_disable(&sc->sc_napi);
 128 +#else
 129 +               netif_poll_disable(dev);
 130 +#endif
 131 +       }
 132 +}
 133 +
 134 +static void ath_poll_enable(struct net_device *dev)
 135 +{
 136 +       struct ath_softc *sc = dev->priv;
 137 +
 138 +       /* NB: see above */
 139 +       if (!in_softirq()) {
 140 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 141 +               napi_enable(&sc->sc_napi);
 142 +#else
 143 +               netif_poll_enable(dev);
 144 +#endif
 145 +       }
 146 +}
 147 +
 148 +
 149  /*
 150   * Block/unblock tx+rx processing while a key change is done.
 151   * We assume the caller serializes key management operations
 152 @@ -4026,13 +4097,7 @@
 153          * When called from the rx tasklet we cannot use
 154          * tasklet_disable because it will block waiting
 155          * for us to complete execution.
 156 -        *
 157 -        * XXX Using in_softirq is not right since we might
 158 -        * be called from other soft irq contexts than
 159 -        * ath_rx_tasklet.
 160          */
 161 -       if (!in_softirq())
 162 -               tasklet_disable(&sc->sc_rxtq);
 163         netif_stop_queue(dev);
 164  }
 165
 166 @@ -4043,9 +4108,9 @@
 167         struct ath_softc *sc = dev->priv;
 168
 169         DPRINTF(sc, ATH_DEBUG_KEYCACHE, "End\n");
 170 -       netif_wake_queue(dev);
 171 -       if (!in_softirq())              /* NB: see above */
 172 -               tasklet_enable(&sc->sc_rxtq);
 173 +
 174 +       if (dev->flags&IFF_RUNNING)
 175 +               netif_wake_queue(dev);
 176  }
 177
 178  /*
 179 @@ -6350,15 +6415,25 @@
 180         sc->sc_rxotherant = 0;
 181  }
 182
 183 -static void
 184 -ath_rx_tasklet(TQUEUE_ARG data)
 185 +static int
 186 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 187 +ath_rx_poll(struct napi_struct *napi, int budget)
 188 +#else
 189 +ath_rx_poll(struct net_device *dev, int *budget)
 190 +#endif
 191  {
 192  #define        PA2DESC(_sc, _pa) \
 193         ((struct ath_desc *)((caddr_t)(_sc)->sc_rxdma.dd_desc + \
 194                 ((_pa) - (_sc)->sc_rxdma.dd_desc_paddr)))
 195 -       struct net_device *dev = (struct net_device *)data;
 196 -       struct ath_buf *bf;
 197 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 198 +       struct ath_softc *sc = container_of(napi, struct ath_softc, sc_napi);
 199 +       struct net_device *dev = sc->sc_dev;
 200 +       u_int rx_limit = budget;
 201 +#else
 202         struct ath_softc *sc = dev->priv;
 203 +       u_int rx_limit = min(dev->quota, *budget);
 204 +#endif
 205 +       struct ath_buf *bf;
 206         struct ieee80211com *ic = &sc->sc_ic;
 207         struct ath_hal *ah = sc ? sc->sc_ah : NULL;
 208         struct ath_desc *ds;
 209 @@ -6368,8 +6443,10 @@
 210         unsigned int len;
 211         int type;
 212         u_int phyerr;
 213 +       u_int processed = 0, early_stop = 0;
 214
 215         DPRINTF(sc, ATH_DEBUG_RX_PROC, "invoked\n");
 216 +process_rx_again:
 217         do {
 218                 bf = STAILQ_FIRST(&sc->sc_rxbuf);
 219                 if (bf == NULL) {               /* XXX ??? can this happen */
 220 @@ -6393,6 +6470,15 @@
 221                         /* NB: never process the self-linked entry at the end */
 222                         break;
 223                 }
 224 +
 225 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 226 +               processed++;
 227 +#endif
 228 +               if (rx_limit-- < 0) {
 229 +                       early_stop = 1;
 230 +                       break;
 231 +               }
 232 +
 233                 skb = bf->bf_skb;
 234                 if (skb == NULL) {
 235                         EPRINTF(sc, "Dropping; buffer contains NULL skbuff.\n");
 236 @@ -6440,6 +6526,7 @@
 237                                 sc->sc_stats.ast_rx_phyerr++;
 238                                 phyerr = rs->rs_phyerr & 0x1f;
 239                                 sc->sc_stats.ast_rx_phy[phyerr]++;
 240 +                               goto rx_next;
 241                         }
 242                         if (rs->rs_status & HAL_RXERR_DECRYPT) {
 243                                 /*
 244 @@ -6635,9 +6722,43 @@
 245                 STAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list);
 246                 ATH_RXBUF_UNLOCK_IRQ(sc);
 247         } while (ath_rxbuf_init(sc, bf) == 0);
 248 +       if (!early_stop) {
 249 +               unsigned long flags;
 250 +               /* Check if more data is received while we were
 251 +                * processing the descriptor chain.
 252 +                */
 253 +#ifndef ATH_PRECISE_TSF
 254 +               local_irq_save(flags);
 255 +               if (sc->sc_isr & HAL_INT_RX) {
 256 +                       u_int64_t hw_tsf = ath_hal_gettsf64(ah);
 257 +                       sc->sc_isr &= ~HAL_INT_RX;
 258 +                       local_irq_restore(flags);
 259 +                       ath_uapsd_processtriggers(sc, hw_tsf);
 260 +                       goto process_rx_again;
 261 +               }
 262 +#endif
 263 +#ifndef ATH_PRECISE_TSF
 264 +               sc->sc_imask |= HAL_INT_RX;
 265 +               ath_hal_intrset(ah, sc->sc_imask);
 266 +               local_irq_restore(flags);
 267 +#endif
 268 +       }
 269 +
 270 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 271 +       netif_rx_complete(dev, napi);
 272 +#else
 273 +       netif_rx_complete(dev);
 274 +       *budget -= processed;
 275 +       dev->quota -= processed;
 276 +#endif
 277
 278         /* rx signal state monitoring */
 279         ath_hal_rxmonitor(ah, &sc->sc_halstats, &sc->sc_curchan);
 280 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 281 +       return processed;
 282 +#else
 283 +       return early_stop;
 284 +#endif
 285  #undef PA2DESC
 286  }
 287
 288 @@ -8288,12 +8409,24 @@
 289  {
 290         struct net_device *dev = (struct net_device *)data;
 291         struct ath_softc *sc = dev->priv;
 292 +       unsigned long flags;
 293
 294 +process_tx_again:
 295         if (txqactive(sc->sc_ah, 0))
 296                 ath_tx_processq(sc, &sc->sc_txq[0]);
 297         if (txqactive(sc->sc_ah, sc->sc_cabq->axq_qnum))
 298                 ath_tx_processq(sc, sc->sc_cabq);
 299
 300 +       local_irq_save(flags);
 301 +       if (sc->sc_isr & HAL_INT_TX) {
 302 +               sc->sc_isr &= ~HAL_INT_TX;
 303 +               local_irq_restore(flags);
 304 +               goto process_tx_again;
 305 +       }
 306 +       sc->sc_imask |= HAL_INT_TX;
 307 +       ath_hal_intrset(sc->sc_ah, sc->sc_imask);
 308 +       local_irq_restore(flags);
 309 +
 310         netif_wake_queue(dev);
 311
 312         if (sc->sc_softled)
 313 @@ -8309,7 +8442,9 @@
 314  {
 315         struct net_device *dev = (struct net_device *)data;
 316         struct ath_softc *sc = dev->priv;
 317 +       unsigned long flags;
 318
 319 +process_tx_again:
 320         /*
 321          * Process each active queue.
 322          */
 323 @@ -8330,6 +8465,16 @@
 324         if (sc->sc_uapsdq && txqactive(sc->sc_ah, sc->sc_uapsdq->axq_qnum))
 325                 ath_tx_processq(sc, sc->sc_uapsdq);
 326
 327 +       local_irq_save(flags);
 328 +       if (sc->sc_isr & HAL_INT_TX) {
 329 +               sc->sc_isr &= ~HAL_INT_TX;
 330 +               local_irq_restore(flags);
 331 +               goto process_tx_again;
 332 +       }
 333 +       sc->sc_imask |= HAL_INT_TX;
 334 +       ath_hal_intrset(sc->sc_ah, sc->sc_imask);
 335 +       local_irq_restore(flags);
 336 +
 337         netif_wake_queue(dev);
 338
 339         if (sc->sc_softled)
 340 @@ -8345,13 +8490,25 @@
 341         struct net_device *dev = (struct net_device *)data;
 342         struct ath_softc *sc = dev->priv;
 343         unsigned int i;
 344 +       unsigned long flags;
 345
 346         /* Process each active queue. This includes sc_cabq, sc_xrtq and
 347          * sc_uapsdq */
 348 +process_tx_again:
 349         for (i = 0; i < HAL_NUM_TX_QUEUES; i++)
 350                 if (ATH_TXQ_SETUP(sc, i) && txqactive(sc->sc_ah, i))
 351                         ath_tx_processq(sc, &sc->sc_txq[i]);
 352
 353 +       local_irq_save(flags);
 354 +       if (sc->sc_isr & HAL_INT_TX) {
 355 +               sc->sc_isr &= ~HAL_INT_TX;
 356 +               local_irq_restore(flags);
 357 +               goto process_tx_again;
 358 +       }
 359 +       sc->sc_imask |= HAL_INT_TX;
 360 +       ath_hal_intrset(sc->sc_ah, sc->sc_imask);
 361 +       local_irq_restore(flags);
 362 +
 363         netif_wake_queue(dev);
 364
 365         if (sc->sc_softled)
 366 @@ -10284,9 +10441,9 @@
 367         dev->mtu = mtu;
 368         if ((dev->flags & IFF_RUNNING) && !sc->sc_invalid) {
 369                 /* NB: the rx buffers may need to be reallocated */
 370 -               tasklet_disable(&sc->sc_rxtq);
 371 +               ath_poll_disable(dev);
 372                 error = ath_reset(dev);
 373 -               tasklet_enable(&sc->sc_rxtq);
 374 +               ath_poll_enable(dev);
 375         }
 376         ATH_UNLOCK(sc);
 377
 378 Index: madwifi-trunk-r3314/ath/if_athvar.h
 379 ===================================================================
 380 --- madwifi-trunk-r3314.orig/ath/if_athvar.h
 381 +++ madwifi-trunk-r3314/ath/if_athvar.h
 382 @@ -53,6 +53,10 @@
 383  # include      <asm/bitops.h>
 384  #endif
 385
 386 +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
 387 +#define irqs_disabled()                        0
 388 +#endif
 389 +
 390  /*
 391   * Deduce if tasklets are available.  If not then
 392   * fall back to using the immediate work queue.
 393 @@ -616,6 +620,9 @@
 394  struct ath_softc {
 395         struct ieee80211com sc_ic;              /* NB: must be first */
 396         struct net_device *sc_dev;
 397 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 398 +       struct napi_struct sc_napi;
 399 +#endif
 400         void __iomem *sc_iobase;                /* address of the device */
 401         struct semaphore sc_lock;               /* dev-level lock */
 402         struct net_device_stats sc_devstats;    /* device statistics */
 403 @@ -730,7 +737,6 @@
 404         struct ath_buf *sc_rxbufcur;            /* current rx buffer */
 405         u_int32_t *sc_rxlink;                   /* link ptr in last RX desc */
 406         spinlock_t sc_rxbuflock;
 407 -       struct ATH_TQ_STRUCT sc_rxtq;           /* rx intr tasklet */
 408         struct ATH_TQ_STRUCT sc_rxorntq;        /* rxorn intr tasklet */
 409         u_int8_t sc_defant;                     /* current default antenna */
 410         u_int8_t sc_rxotherant;                 /* RXs on non-default antenna */
 411 @@ -745,6 +751,7 @@
 412         u_int sc_txintrperiod;                  /* tx interrupt batching */
 413         struct ath_txq sc_txq[HAL_NUM_TX_QUEUES];
 414         struct ath_txq *sc_ac2q[WME_NUM_AC];    /* WME AC -> h/w qnum */
 415 +       HAL_INT sc_isr;                         /* unmasked ISR state */
 416         struct ATH_TQ_STRUCT sc_txtq;           /* tx intr tasklet */
 417         u_int8_t sc_grppoll_str[GRPPOLL_RATE_STR_LEN];
 418         struct ath_descdma sc_bdma;             /* beacon descriptors */
 419 @@ -858,6 +865,8 @@
 420  #define        ATH_TXBUF_LOCK_CHECK(_sc)
 421  #endif
 422
 423 +#define ATH_DISABLE_INTR               local_irq_disable
 424 +#define ATH_ENABLE_INTR                local_irq_enable
 425
 426  #define        ATH_RXBUF_LOCK_INIT(_sc)        spin_lock_init(&(_sc)->sc_rxbuflock)
 427  #define        ATH_RXBUF_LOCK_DESTROY(_sc)
 428 Index: madwifi-trunk-r3314/net80211/ieee80211_input.c
 429 ===================================================================
 430 --- madwifi-trunk-r3314.orig/net80211/ieee80211_input.c
 431 +++ madwifi-trunk-r3314/net80211/ieee80211_input.c
 432 @@ -1198,7 +1198,7 @@
 433                         /* attach vlan tag */
 434                         struct ieee80211_node *ni_tmp = SKB_CB(skb)->ni;
 435                         if (vlan_hwaccel_receive_skb(skb, vap->iv_vlgrp, ni->ni_vlan) == NET_RX_DROP) {
 436 -                               /* If netif_rx dropped the packet because
 437 +                               /* If netif_receive_skb dropped the packet because
 438                                  * device was too busy */
 439                                 if (ni_tmp != NULL) {
 440                                         /* node reference was leaked */
 441 @@ -1209,8 +1209,8 @@
 442                         skb = NULL; /* SKB is no longer ours */
 443                 } else {
 444                         struct ieee80211_node *ni_tmp = SKB_CB(skb)->ni;
 445 -                       if (netif_rx(skb) == NET_RX_DROP) {
 446 -                               /* If netif_rx dropped the packet because
 447 +                       if (netif_receive_skb(skb) == NET_RX_DROP) {
 448 +                               /* If netif_receive_skb dropped the packet because
 449                                  * device was too busy */
 450                                 if (ni_tmp != NULL) {
 451                                         /* node reference was leaked */
 452 @@ -2322,8 +2322,8 @@
 453                 skb1->protocol = __constant_htons(0x0019);  /* ETH_P_80211_RAW */
 454
 455                 ni_tmp = SKB_CB(skb1)->ni;
 456 -               if (netif_rx(skb1) == NET_RX_DROP) {
 457 -                       /* If netif_rx dropped the packet because
 458 +               if (netif_receive_skb(skb1) == NET_RX_DROP) {
 459 +                       /* If netif_receive_skb dropped the packet because
 460                          * device was too busy */
 461                         if (ni_tmp != NULL) {
 462                                 /* node reference was leaked */
 463 Index: madwifi-trunk-r3314/net80211/ieee80211_monitor.c
 464 ===================================================================
 465 --- madwifi-trunk-r3314.orig/net80211/ieee80211_monitor.c
 466 +++ madwifi-trunk-r3314/net80211/ieee80211_monitor.c
 467 @@ -584,8 +584,8 @@
 468                         skb1->protocol =
 469                                 __constant_htons(0x0019); /* ETH_P_80211_RAW */
 470
 471 -                       if (netif_rx(skb1) == NET_RX_DROP) {
 472 -                               /* If netif_rx dropped the packet because
 473 +                       if (netif_receive_skb(skb1) == NET_RX_DROP) {
 474 +                               /* If netif_receive_skb dropped the packet because
 475                                  * device was too busy, reclaim the ref. in
 476                                  * the skb. */
 477                                 if (SKB_CB(skb1)->ni != NULL)
 478 Index: madwifi-trunk-r3314/net80211/ieee80211_skb.c
 479 ===================================================================
 480 --- madwifi-trunk-r3314.orig/net80211/ieee80211_skb.c
 481 +++ madwifi-trunk-r3314/net80211/ieee80211_skb.c
 482 @@ -73,7 +73,7 @@
 483  #undef dev_queue_xmit
 484  #undef kfree_skb
 485  #undef kfree_skb_fast
 486 -#undef netif_rx
 487 +#undef netif_receive_skb
 488  #undef pskb_copy
 489  #undef skb_clone
 490  #undef skb_copy
 491 @@ -638,8 +638,8 @@
 492                 grp, vlan_tag);
 493  }
 494
 495 -int netif_rx_debug(struct sk_buff *skb, const char* func, int line) {
 496 -       return netif_rx(untrack_skb(skb, 0, func, line, __func__, __LINE__));
 497 +int netif_receive_skb_debug(struct sk_buff *skb, const char* func, int line) {
 498 +       return netif_receive_skb(untrack_skb(skb, 0, func, line, __func__, __LINE__));
 499  }
 500
 501  struct sk_buff * alloc_skb_debug(unsigned int length, gfp_t gfp_mask,
 502 @@ -760,7 +760,7 @@
 503  }
 504
 505  EXPORT_SYMBOL(vlan_hwaccel_receive_skb_debug);
 506 -EXPORT_SYMBOL(netif_rx_debug);
 507 +EXPORT_SYMBOL(netif_receive_skb_debug);
 508  EXPORT_SYMBOL(alloc_skb_debug);
 509  EXPORT_SYMBOL(dev_alloc_skb_debug);
 510  EXPORT_SYMBOL(skb_clone_debug);
 511 Index: madwifi-trunk-r3314/net80211/ieee80211_skb.h
 512 ===================================================================
 513 --- madwifi-trunk-r3314.orig/net80211/ieee80211_skb.h
 514 +++ madwifi-trunk-r3314/net80211/ieee80211_skb.h
 515 @@ -116,7 +116,7 @@
 516  int  vlan_hwaccel_receive_skb_debug(struct sk_buff *skb,
 517                                     struct vlan_group *grp, unsigned short vlan_tag,
 518                                     const char* func, int line);
 519 -int netif_rx_debug(struct sk_buff *skb, const char* func, int line);
 520 +int netif_receive_skb_debug(struct sk_buff *skb, const char* func, int line);
 521  struct sk_buff * alloc_skb_debug(unsigned int length, gfp_t gfp_mask,
 522                                  const char *func, int line);
 523  struct sk_buff * dev_alloc_skb_debug(unsigned int length,
 524 @@ -151,7 +151,7 @@
 525  #undef dev_queue_xmit
 526  #undef kfree_skb
 527  #undef kfree_skb_fast
 528 -#undef netif_rx
 529 +#undef netif_receive_skb
 530  #undef pskb_copy
 531  #undef skb_clone
 532  #undef skb_copy
 533 @@ -168,8 +168,8 @@
 534         skb_copy_expand_debug(_skb, _newheadroom, _newtailroom, _gfp_mask, __func__, __LINE__)
 535  #define vlan_hwaccel_receive_skb(_skb, _grp, _tag) \
 536         vlan_hwaccel_receive_skb_debug(_skb, _grp, _tag, __func__, __LINE__)
 537 -#define netif_rx(_skb) \
 538 -       netif_rx_debug(_skb, __func__, __LINE__)
 539 +#define netif_receive_skb(_skb) \
 540 +       netif_receive_skb_debug(_skb, __func__, __LINE__)
 541  #define        alloc_skb(_length, _gfp_mask) \
 542         alloc_skb_debug(_length, _gfp_mask, __func__, __LINE__)
 543  #define        dev_alloc_skb(_length) \