package/madwifi/patches/300-napi_polling.patch

   1 --- a/ath/if_ath.c
   2 +++ b/ath/if_ath.c
   3 @@ -184,7 +184,11 @@
   4         struct sk_buff *, int, int, u_int64_t);
   5  static void ath_setdefantenna(struct ath_softc *, u_int);
   6  static struct ath_txq *ath_txq_setup(struct ath_softc *, int, int);
   7 -static void ath_rx_tasklet(TQUEUE_ARG);
   8 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
   9 +static int ath_rx_poll(struct napi_struct *napi, int budget);
  10 +#else
  11 +static int ath_rx_poll(struct net_device *dev, int *budget);
  12 +#endif
  13  static int ath_hardstart(struct sk_buff *, struct net_device *);
  14  static int ath_mgtstart(struct ieee80211com *, struct sk_buff *);
  15  #ifdef ATH_SUPERG_COMP
  16 @@ -376,6 +380,9 @@
  17                 u_int32_t new_clamped_maxtxpower);
  18  static u_int32_t ath_get_real_maxtxpower(struct ath_softc *sc);
  19
  20 +static void ath_poll_disable(struct net_device *dev);
  21 +static void ath_poll_enable(struct net_device *dev);
  22 +
  23  /* calibrate every 30 secs in steady state but check every second at first. */
  24  static int ath_calinterval = ATH_SHORT_CALINTERVAL;
  25  static int ath_countrycode = CTRY_DEFAULT;     /* country code */
  26 @@ -547,7 +554,6 @@
  27
  28         atomic_set(&sc->sc_txbuf_counter, 0);
  29
  30 -       ATH_INIT_TQUEUE(&sc->sc_rxtq,     ath_rx_tasklet,       dev);
  31         ATH_INIT_TQUEUE(&sc->sc_txtq,     ath_tx_tasklet,       dev);
  32         ATH_INIT_TQUEUE(&sc->sc_bmisstq,  ath_bmiss_tasklet,    dev);
  33         ATH_INIT_TQUEUE(&sc->sc_bstucktq, ath_bstuck_tasklet,   dev);
  34 @@ -821,6 +827,12 @@
  35         dev->set_mac_address = ath_set_mac_address;
  36         dev->change_mtu = ath_change_mtu;
  37         dev->tx_queue_len = ATH_TXBUF - ATH_TXBUF_MGT_RESERVED;
  38 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
  39 +       netif_napi_add(dev, &sc->sc_napi, ath_rx_poll, 64);
  40 +#else
  41 +       dev->poll = ath_rx_poll;
  42 +       dev->weight = 64;
  43 +#endif
  44  #ifdef USE_HEADERLEN_RESV
  45         dev->hard_header_len += sizeof(struct ieee80211_qosframe) +
  46                                 sizeof(struct llc) +
  47 @@ -2220,6 +2232,7 @@
  48                 (status & HAL_INT_GLOBAL)       ? " HAL_INT_GLOBAL"     : ""
  49                 );
  50
  51 +       sc->sc_isr = status;
  52         status &= sc->sc_imask;                 /* discard unasked for bits */
  53         /* As soon as we know we have a real interrupt we intend to service,
  54          * we will check to see if we need an initial hardware TSF reading.
  55 @@ -2277,7 +2290,23 @@
  56                 }
  57                 if (status & (HAL_INT_RX | HAL_INT_RXPHY)) {
  58                         ath_uapsd_processtriggers(sc, hw_tsf);
  59 -                       ATH_SCHEDULE_TQUEUE(&sc->sc_rxtq, &needmark);
  60 +                       sc->sc_isr &= ~HAL_INT_RX;
  61 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
  62 +                       if (netif_rx_schedule_prep(dev, &sc->sc_napi))
  63 +#else
  64 +                       if (netif_rx_schedule_prep(dev))
  65 +#endif
  66 +                       {
  67 +#ifndef ATH_PRECISE_TSF
  68 +                               sc->sc_imask &= ~HAL_INT_RX;
  69 +                               ath_hal_intrset(ah, sc->sc_imask);
  70 +#endif
  71 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
  72 +                               __netif_rx_schedule(dev, &sc->sc_napi);
  73 +#else
  74 +                               __netif_rx_schedule(dev);
  75 +#endif
  76 +                       }
  77                 }
  78                 if (status & HAL_INT_TX) {
  79  #ifdef ATH_SUPERG_DYNTURBO
  80 @@ -2303,6 +2332,11 @@
  81                                 }
  82                         }
  83  #endif
  84 +                       /* disable transmit interrupt */
  85 +                       sc->sc_isr &= ~HAL_INT_TX;
  86 +                       ath_hal_intrset(ah, sc->sc_imask & ~HAL_INT_TX);
  87 +                       sc->sc_imask &= ~HAL_INT_TX;
  88 +
  89                         ATH_SCHEDULE_TQUEUE(&sc->sc_txtq, &needmark);
  90                 }
  91                 if (status & HAL_INT_BMISS) {
  92 @@ -2515,6 +2549,7 @@
  93         if (sc->sc_tx99 != NULL)
  94                 sc->sc_tx99->start(sc->sc_tx99);
  95  #endif
  96 +       ath_poll_enable(dev);
  97
  98  done:
  99         ATH_UNLOCK(sc);
 100 @@ -2555,6 +2590,9 @@
 101                 if (sc->sc_tx99 != NULL)
 102                         sc->sc_tx99->stop(sc->sc_tx99);
 103  #endif
 104 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 105 +               ath_poll_disable(dev);
 106 +#endif
 107                 netif_stop_queue(dev);  /* XXX re-enabled by ath_newstate */
 108                 dev->flags &= ~IFF_RUNNING;     /* NB: avoid recursion */
 109                 ieee80211_stop_running(ic);     /* stop all VAPs */
 110 @@ -4013,12 +4051,47 @@
 111         return ath_keyset(sc, k, mac, vap->iv_bss);
 112  }
 113
 114 +static void ath_poll_disable(struct net_device *dev)
 115 +{
 116 +       struct ath_softc *sc = dev->priv;
 117 +
 118 +       /*
 119 +        * XXX Using in_softirq is not right since we might
 120 +        * be called from other soft irq contexts than
 121 +        * ath_rx_poll
 122 +        */
 123 +       if (!in_softirq()) {
 124 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 125 +               napi_disable(&sc->sc_napi);
 126 +#else
 127 +               netif_poll_disable(dev);
 128 +#endif
 129 +       }
 130 +}
 131 +
 132 +static void ath_poll_enable(struct net_device *dev)
 133 +{
 134 +       struct ath_softc *sc = dev->priv;
 135 +
 136 +       /* NB: see above */
 137 +       if (!in_softirq()) {
 138 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 139 +               napi_enable(&sc->sc_napi);
 140 +#else
 141 +               netif_poll_enable(dev);
 142 +#endif
 143 +       }
 144 +}
 145 +
 146 +
 147  /*
 148   * Block/unblock tx+rx processing while a key change is done.
 149   * We assume the caller serializes key management operations
 150   * so we only need to worry about synchronization with other
 151   * uses that originate in the driver.
 152   */
 153 +#define        IS_UP(_dev) \
 154 +       (((_dev)->flags & (IFF_RUNNING|IFF_UP)) == (IFF_RUNNING|IFF_UP))
 155  static void
 156  ath_key_update_begin(struct ieee80211vap *vap)
 157  {
 158 @@ -4032,14 +4105,9 @@
 159          * When called from the rx tasklet we cannot use
 160          * tasklet_disable because it will block waiting
 161          * for us to complete execution.
 162 -        *
 163 -        * XXX Using in_softirq is not right since we might
 164 -        * be called from other soft irq contexts than
 165 -        * ath_rx_tasklet.
 166          */
 167 -       if (!in_softirq())
 168 -               tasklet_disable(&sc->sc_rxtq);
 169 -       netif_stop_queue(dev);
 170 +       if (IS_UP(vap->iv_dev))
 171 +               netif_stop_queue(dev);
 172  }
 173
 174  static void
 175 @@ -4051,9 +4119,9 @@
 176  #endif
 177
 178         DPRINTF(sc, ATH_DEBUG_KEYCACHE, "End\n");
 179 -       netif_wake_queue(dev);
 180 -       if (!in_softirq())              /* NB: see above */
 181 -               tasklet_enable(&sc->sc_rxtq);
 182 +
 183 +       if (IS_UP(vap->iv_dev))
 184 +               netif_wake_queue(dev);
 185  }
 186
 187  /*
 188 @@ -6360,15 +6428,25 @@
 189         sc->sc_rxotherant = 0;
 190  }
 191
 192 -static void
 193 -ath_rx_tasklet(TQUEUE_ARG data)
 194 +static int
 195 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 196 +ath_rx_poll(struct napi_struct *napi, int budget)
 197 +#else
 198 +ath_rx_poll(struct net_device *dev, int *budget)
 199 +#endif
 200  {
 201  #define        PA2DESC(_sc, _pa) \
 202         ((struct ath_desc *)((caddr_t)(_sc)->sc_rxdma.dd_desc + \
 203                 ((_pa) - (_sc)->sc_rxdma.dd_desc_paddr)))
 204 -       struct net_device *dev = (struct net_device *)data;
 205 -       struct ath_buf *bf;
 206 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 207 +       struct ath_softc *sc = container_of(napi, struct ath_softc, sc_napi);
 208 +       struct net_device *dev = sc->sc_dev;
 209 +       u_int rx_limit = budget;
 210 +#else
 211         struct ath_softc *sc = dev->priv;
 212 +       u_int rx_limit = min(dev->quota, *budget);
 213 +#endif
 214 +       struct ath_buf *bf;
 215         struct ieee80211com *ic = &sc->sc_ic;
 216         struct ath_hal *ah = sc ? sc->sc_ah : NULL;
 217         struct ath_desc *ds;
 218 @@ -6378,8 +6456,10 @@
 219         unsigned int len;
 220         int type;
 221         u_int phyerr;
 222 +       u_int processed = 0, early_stop = 0;
 223
 224         DPRINTF(sc, ATH_DEBUG_RX_PROC, "invoked\n");
 225 +process_rx_again:
 226         do {
 227                 bf = STAILQ_FIRST(&sc->sc_rxbuf);
 228                 if (bf == NULL) {               /* XXX ??? can this happen */
 229 @@ -6403,6 +6483,15 @@
 230                         /* NB: never process the self-linked entry at the end */
 231                         break;
 232                 }
 233 +
 234 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 235 +               processed++;
 236 +#endif
 237 +               if (rx_limit-- < 0) {
 238 +                       early_stop = 1;
 239 +                       break;
 240 +               }
 241 +
 242                 skb = bf->bf_skb;
 243                 if (skb == NULL) {
 244                         EPRINTF(sc, "Dropping; buffer contains NULL skbuff.\n");
 245 @@ -6450,6 +6539,7 @@
 246                                 sc->sc_stats.ast_rx_phyerr++;
 247                                 phyerr = rs->rs_phyerr & 0x1f;
 248                                 sc->sc_stats.ast_rx_phy[phyerr]++;
 249 +                               goto rx_next;
 250                         }
 251                         if (rs->rs_status & HAL_RXERR_DECRYPT) {
 252                                 /*
 253 @@ -6645,9 +6735,43 @@
 254                 STAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list);
 255                 ATH_RXBUF_UNLOCK_IRQ(sc);
 256         } while (ath_rxbuf_init(sc, bf) == 0);
 257 +       if (!early_stop) {
 258 +               unsigned long flags;
 259 +               /* Check if more data is received while we were
 260 +                * processing the descriptor chain.
 261 +                */
 262 +#ifndef ATH_PRECISE_TSF
 263 +               local_irq_save(flags);
 264 +               if (sc->sc_isr & HAL_INT_RX) {
 265 +                       u_int64_t hw_tsf = ath_hal_gettsf64(ah);
 266 +                       sc->sc_isr &= ~HAL_INT_RX;
 267 +                       local_irq_restore(flags);
 268 +                       ath_uapsd_processtriggers(sc, hw_tsf);
 269 +                       goto process_rx_again;
 270 +               }
 271 +#endif
 272 +#ifndef ATH_PRECISE_TSF
 273 +               sc->sc_imask |= HAL_INT_RX;
 274 +               ath_hal_intrset(ah, sc->sc_imask);
 275 +               local_irq_restore(flags);
 276 +#endif
 277 +       }
 278 +
 279 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 280 +       netif_rx_complete(dev, napi);
 281 +#else
 282 +       netif_rx_complete(dev);
 283 +       *budget -= processed;
 284 +       dev->quota -= processed;
 285 +#endif
 286
 287         /* rx signal state monitoring */
 288         ath_hal_rxmonitor(ah, &sc->sc_halstats, &sc->sc_curchan);
 289 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 290 +       return processed;
 291 +#else
 292 +       return early_stop;
 293 +#endif
 294  #undef PA2DESC
 295  }
 296
 297 @@ -8298,12 +8422,24 @@
 298  {
 299         struct net_device *dev = (struct net_device *)data;
 300         struct ath_softc *sc = dev->priv;
 301 +       unsigned long flags;
 302
 303 +process_tx_again:
 304         if (txqactive(sc->sc_ah, 0))
 305                 ath_tx_processq(sc, &sc->sc_txq[0]);
 306         if (txqactive(sc->sc_ah, sc->sc_cabq->axq_qnum))
 307                 ath_tx_processq(sc, sc->sc_cabq);
 308
 309 +       local_irq_save(flags);
 310 +       if (sc->sc_isr & HAL_INT_TX) {
 311 +               sc->sc_isr &= ~HAL_INT_TX;
 312 +               local_irq_restore(flags);
 313 +               goto process_tx_again;
 314 +       }
 315 +       sc->sc_imask |= HAL_INT_TX;
 316 +       ath_hal_intrset(sc->sc_ah, sc->sc_imask);
 317 +       local_irq_restore(flags);
 318 +
 319         netif_wake_queue(dev);
 320
 321         if (sc->sc_softled)
 322 @@ -8319,7 +8455,9 @@
 323  {
 324         struct net_device *dev = (struct net_device *)data;
 325         struct ath_softc *sc = dev->priv;
 326 +       unsigned long flags;
 327
 328 +process_tx_again:
 329         /*
 330          * Process each active queue.
 331          */
 332 @@ -8340,6 +8478,16 @@
 333         if (sc->sc_uapsdq && txqactive(sc->sc_ah, sc->sc_uapsdq->axq_qnum))
 334                 ath_tx_processq(sc, sc->sc_uapsdq);
 335
 336 +       local_irq_save(flags);
 337 +       if (sc->sc_isr & HAL_INT_TX) {
 338 +               sc->sc_isr &= ~HAL_INT_TX;
 339 +               local_irq_restore(flags);
 340 +               goto process_tx_again;
 341 +       }
 342 +       sc->sc_imask |= HAL_INT_TX;
 343 +       ath_hal_intrset(sc->sc_ah, sc->sc_imask);
 344 +       local_irq_restore(flags);
 345 +
 346         netif_wake_queue(dev);
 347
 348         if (sc->sc_softled)
 349 @@ -8355,13 +8503,25 @@
 350         struct net_device *dev = (struct net_device *)data;
 351         struct ath_softc *sc = dev->priv;
 352         unsigned int i;
 353 +       unsigned long flags;
 354
 355         /* Process each active queue. This includes sc_cabq, sc_xrtq and
 356          * sc_uapsdq */
 357 +process_tx_again:
 358         for (i = 0; i < HAL_NUM_TX_QUEUES; i++)
 359                 if (ATH_TXQ_SETUP(sc, i) && txqactive(sc->sc_ah, i))
 360                         ath_tx_processq(sc, &sc->sc_txq[i]);
 361
 362 +       local_irq_save(flags);
 363 +       if (sc->sc_isr & HAL_INT_TX) {
 364 +               sc->sc_isr &= ~HAL_INT_TX;
 365 +               local_irq_restore(flags);
 366 +               goto process_tx_again;
 367 +       }
 368 +       sc->sc_imask |= HAL_INT_TX;
 369 +       ath_hal_intrset(sc->sc_ah, sc->sc_imask);
 370 +       local_irq_restore(flags);
 371 +
 372         netif_wake_queue(dev);
 373
 374         if (sc->sc_softled)
 375 @@ -10296,9 +10456,9 @@
 376         dev->mtu = mtu;
 377         if ((dev->flags & IFF_RUNNING) && !sc->sc_invalid) {
 378                 /* NB: the rx buffers may need to be reallocated */
 379 -               tasklet_disable(&sc->sc_rxtq);
 380 +               ath_poll_disable(dev);
 381                 error = ath_reset(dev);
 382 -               tasklet_enable(&sc->sc_rxtq);
 383 +               ath_poll_enable(dev);
 384         }
 385         ATH_UNLOCK(sc);
 386
 387 --- a/ath/if_athvar.h
 388 +++ b/ath/if_athvar.h
 389 @@ -53,6 +53,10 @@
 390  # include      <asm/bitops.h>
 391  #endif
 392
 393 +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
 394 +#define irqs_disabled()                        0
 395 +#endif
 396 +
 397  /*
 398   * Deduce if tasklets are available.  If not then
 399   * fall back to using the immediate work queue.
 400 @@ -616,6 +620,9 @@
 401  struct ath_softc {
 402         struct ieee80211com sc_ic;              /* NB: must be first */
 403         struct net_device *sc_dev;
 404 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 405 +       struct napi_struct sc_napi;
 406 +#endif
 407         void __iomem *sc_iobase;                /* address of the device */
 408         struct semaphore sc_lock;               /* dev-level lock */
 409         struct net_device_stats sc_devstats;    /* device statistics */
 410 @@ -730,7 +737,6 @@
 411         struct ath_buf *sc_rxbufcur;            /* current rx buffer */
 412         u_int32_t *sc_rxlink;                   /* link ptr in last RX desc */
 413         spinlock_t sc_rxbuflock;
 414 -       struct ATH_TQ_STRUCT sc_rxtq;           /* rx intr tasklet */
 415         struct ATH_TQ_STRUCT sc_rxorntq;        /* rxorn intr tasklet */
 416         u_int8_t sc_defant;                     /* current default antenna */
 417         u_int8_t sc_rxotherant;                 /* RXs on non-default antenna */
 418 @@ -745,6 +751,7 @@
 419         u_int sc_txintrperiod;                  /* tx interrupt batching */
 420         struct ath_txq sc_txq[HAL_NUM_TX_QUEUES];
 421         struct ath_txq *sc_ac2q[WME_NUM_AC];    /* WME AC -> h/w qnum */
 422 +       HAL_INT sc_isr;                         /* unmasked ISR state */
 423         struct ATH_TQ_STRUCT sc_txtq;           /* tx intr tasklet */
 424         u_int8_t sc_grppoll_str[GRPPOLL_RATE_STR_LEN];
 425         struct ath_descdma sc_bdma;             /* beacon descriptors */
 426 @@ -858,6 +865,8 @@
 427  #define        ATH_TXBUF_LOCK_CHECK(_sc)
 428  #endif
 429
 430 +#define ATH_DISABLE_INTR               local_irq_disable
 431 +#define ATH_ENABLE_INTR                local_irq_enable
 432
 433  #define        ATH_RXBUF_LOCK_INIT(_sc)        spin_lock_init(&(_sc)->sc_rxbuflock)
 434  #define        ATH_RXBUF_LOCK_DESTROY(_sc)
 435 --- a/net80211/ieee80211_input.c
 436 +++ b/net80211/ieee80211_input.c
 437 @@ -1198,7 +1198,7 @@
 438                         /* attach vlan tag */
 439                         struct ieee80211_node *ni_tmp = SKB_CB(skb)->ni;
 440                         if (vlan_hwaccel_receive_skb(skb, vap->iv_vlgrp, ni->ni_vlan) == NET_RX_DROP) {
 441 -                               /* If netif_rx dropped the packet because
 442 +                               /* If netif_receive_skb dropped the packet because
 443                                  * device was too busy */
 444                                 if (ni_tmp != NULL) {
 445                                         /* node reference was leaked */
 446 @@ -1209,8 +1209,8 @@
 447                         skb = NULL; /* SKB is no longer ours */
 448                 } else {
 449                         struct ieee80211_node *ni_tmp = SKB_CB(skb)->ni;
 450 -                       if (netif_rx(skb) == NET_RX_DROP) {
 451 -                               /* If netif_rx dropped the packet because
 452 +                       if (netif_receive_skb(skb) == NET_RX_DROP) {
 453 +                               /* If netif_receive_skb dropped the packet because
 454                                  * device was too busy */
 455                                 if (ni_tmp != NULL) {
 456                                         /* node reference was leaked */
 457 @@ -2322,8 +2322,8 @@
 458                 skb1->protocol = __constant_htons(0x0019);  /* ETH_P_80211_RAW */
 459
 460                 ni_tmp = SKB_CB(skb1)->ni;
 461 -               if (netif_rx(skb1) == NET_RX_DROP) {
 462 -                       /* If netif_rx dropped the packet because
 463 +               if (netif_receive_skb(skb1) == NET_RX_DROP) {
 464 +                       /* If netif_receive_skb dropped the packet because
 465                          * device was too busy */
 466                         if (ni_tmp != NULL) {
 467                                 /* node reference was leaked */
 468 --- a/net80211/ieee80211_monitor.c
 469 +++ b/net80211/ieee80211_monitor.c
 470 @@ -584,8 +584,8 @@
 471                         skb1->protocol =
 472                                 __constant_htons(0x0019); /* ETH_P_80211_RAW */
 473
 474 -                       if (netif_rx(skb1) == NET_RX_DROP) {
 475 -                               /* If netif_rx dropped the packet because
 476 +                       if (netif_receive_skb(skb1) == NET_RX_DROP) {
 477 +                               /* If netif_receive_skb dropped the packet because
 478                                  * device was too busy, reclaim the ref. in
 479                                  * the skb. */
 480                                 if (SKB_CB(skb1)->ni != NULL)
 481 --- a/net80211/ieee80211_skb.c
 482 +++ b/net80211/ieee80211_skb.c
 483 @@ -73,7 +73,7 @@
 484  #undef dev_queue_xmit
 485  #undef kfree_skb
 486  #undef kfree_skb_fast
 487 -#undef netif_rx
 488 +#undef netif_receive_skb
 489  #undef pskb_copy
 490  #undef skb_clone
 491  #undef skb_copy
 492 @@ -638,8 +638,8 @@
 493                 grp, vlan_tag);
 494  }
 495
 496 -int netif_rx_debug(struct sk_buff *skb, const char* func, int line) {
 497 -       return netif_rx(untrack_skb(skb, 0, func, line, __func__, __LINE__));
 498 +int netif_receive_skb_debug(struct sk_buff *skb, const char* func, int line) {
 499 +       return netif_receive_skb(untrack_skb(skb, 0, func, line, __func__, __LINE__));
 500  }
 501
 502  struct sk_buff * alloc_skb_debug(unsigned int length, gfp_t gfp_mask,
 503 @@ -760,7 +760,7 @@
 504  }
 505
 506  EXPORT_SYMBOL(vlan_hwaccel_receive_skb_debug);
 507 -EXPORT_SYMBOL(netif_rx_debug);
 508 +EXPORT_SYMBOL(netif_receive_skb_debug);
 509  EXPORT_SYMBOL(alloc_skb_debug);
 510  EXPORT_SYMBOL(dev_alloc_skb_debug);
 511  EXPORT_SYMBOL(skb_clone_debug);
 512 --- a/net80211/ieee80211_skb.h
 513 +++ b/net80211/ieee80211_skb.h
 514 @@ -116,7 +116,7 @@
 515  int  vlan_hwaccel_receive_skb_debug(struct sk_buff *skb,
 516                                     struct vlan_group *grp, unsigned short vlan_tag,
 517                                     const char* func, int line);
 518 -int netif_rx_debug(struct sk_buff *skb, const char* func, int line);
 519 +int netif_receive_skb_debug(struct sk_buff *skb, const char* func, int line);
 520  struct sk_buff * alloc_skb_debug(unsigned int length, gfp_t gfp_mask,
 521                                  const char *func, int line);
 522  struct sk_buff * dev_alloc_skb_debug(unsigned int length,
 523 @@ -151,7 +151,7 @@
 524  #undef dev_queue_xmit
 525  #undef kfree_skb
 526  #undef kfree_skb_fast
 527 -#undef netif_rx
 528 +#undef netif_receive_skb
 529  #undef pskb_copy
 530  #undef skb_clone
 531  #undef skb_copy
 532 @@ -168,8 +168,8 @@
 533         skb_copy_expand_debug(_skb, _newheadroom, _newtailroom, _gfp_mask, __func__, __LINE__)
 534  #define vlan_hwaccel_receive_skb(_skb, _grp, _tag) \
 535         vlan_hwaccel_receive_skb_debug(_skb, _grp, _tag, __func__, __LINE__)
 536 -#define netif_rx(_skb) \
 537 -       netif_rx_debug(_skb, __func__, __LINE__)
 538 +#define netif_receive_skb(_skb) \
 539 +       netif_receive_skb_debug(_skb, __func__, __LINE__)
 540  #define        alloc_skb(_length, _gfp_mask) \
 541         alloc_skb_debug(_length, _gfp_mask, __func__, __LINE__)
 542  #define        dev_alloc_skb(_length) \