X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/1f9285016a01f115851b9b7f9adb39be52f2b0fa..a0745cadd4b1545fb0c253ba3d75ada790ccde8b:/package/madwifi/patches/300-napi_polling.patch diff --git a/package/madwifi/patches/300-napi_polling.patch b/package/madwifi/patches/300-napi_polling.patch index bdaf9d078..0d7b566b8 100644 --- a/package/madwifi/patches/300-napi_polling.patch +++ b/package/madwifi/patches/300-napi_polling.patch @@ -1,58 +1,83 @@ -Index: madwifi-ng-r2525-20070630/ath/if_ath.c -=================================================================== ---- madwifi-ng-r2525-20070630.orig/ath/if_ath.c 2007-07-03 23:02:32.178054750 +0200 -+++ madwifi-ng-r2525-20070630/ath/if_ath.c 2007-07-03 23:02:32.998106000 +0200 -@@ -170,7 +170,7 @@ - int, u_int64_t); +--- a/ath/if_ath.c ++++ b/ath/if_ath.c +@@ -184,7 +184,11 @@ + struct sk_buff *, int, int, u_int64_t); static void ath_setdefantenna(struct ath_softc *, u_int); static struct ath_txq *ath_txq_setup(struct ath_softc *, int, int); -static void ath_rx_tasklet(TQUEUE_ARG); ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) ++static int ath_rx_poll(struct napi_struct *napi, int budget); ++#else +static int ath_rx_poll(struct net_device *dev, int *budget); ++#endif static int ath_hardstart(struct sk_buff *, struct net_device *); static int ath_mgtstart(struct ieee80211com *, struct sk_buff *); #ifdef ATH_SUPERG_COMP -@@ -446,7 +446,6 @@ - ATH_TXBUF_LOCK_INIT(sc); - ATH_RXBUF_LOCK_INIT(sc); +@@ -376,6 +380,9 @@ + u_int32_t new_clamped_maxtxpower); + static u_int32_t ath_get_real_maxtxpower(struct ath_softc *sc); + ++static void ath_poll_disable(struct net_device *dev); ++static void ath_poll_enable(struct net_device *dev); ++ + /* calibrate every 30 secs in steady state but check every second at first. */ + static int ath_calinterval = ATH_SHORT_CALINTERVAL; + static int ath_countrycode = CTRY_DEFAULT; /* country code */ +@@ -547,7 +554,6 @@ + + atomic_set(&sc->sc_txbuf_counter, 0); - ATH_INIT_TQUEUE(&sc->sc_rxtq, ath_rx_tasklet, dev); ATH_INIT_TQUEUE(&sc->sc_txtq, ath_tx_tasklet, dev); ATH_INIT_TQUEUE(&sc->sc_bmisstq, ath_bmiss_tasklet, dev); ATH_INIT_TQUEUE(&sc->sc_bstucktq, ath_bstuck_tasklet, dev); -@@ -699,6 +698,8 @@ +@@ -821,6 +827,12 @@ dev->set_mac_address = ath_set_mac_address; - dev->change_mtu = ath_change_mtu; - dev->tx_queue_len = ATH_TXBUF - 1; /* 1 for mgmt frame */ + dev->change_mtu = ath_change_mtu; + dev->tx_queue_len = ATH_TXBUF - ATH_TXBUF_MGT_RESERVED; ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) ++ netif_napi_add(dev, &sc->sc_napi, ath_rx_poll, 64); ++#else + dev->poll = ath_rx_poll; + dev->weight = 64; ++#endif #ifdef USE_HEADERLEN_RESV dev->hard_header_len += sizeof(struct ieee80211_qosframe) + sizeof(struct llc) + -@@ -1668,6 +1669,7 @@ - */ - ath_hal_getisr(ah, &status); /* NB: clears ISR too */ - DPRINTF(sc, ATH_DEBUG_INTR, "%s: status 0x%x\n", __func__, status); +@@ -2220,6 +2232,7 @@ + (status & HAL_INT_GLOBAL) ? " HAL_INT_GLOBAL" : "" + ); + + sc->sc_isr = status; status &= sc->sc_imask; /* discard unasked for bits */ - if (status & HAL_INT_FATAL) { - sc->sc_stats.ast_hardware++; -@@ -1703,7 +1705,14 @@ - if (status & HAL_INT_RX) { - sc->sc_tsf = ath_hal_gettsf64(ah); - ath_uapsd_processtriggers(sc); + /* As soon as we know we have a real interrupt we intend to service, + * we will check to see if we need an initial hardware TSF reading. +@@ -2277,7 +2290,23 @@ + } + if (status & (HAL_INT_RX | HAL_INT_RXPHY)) { + ath_uapsd_processtriggers(sc, hw_tsf); - ATH_SCHEDULE_TQUEUE(&sc->sc_rxtq, &needmark); + sc->sc_isr &= ~HAL_INT_RX; -+ if (netif_rx_schedule_prep(dev)) { ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) ++ if (netif_rx_schedule_prep(dev, &sc->sc_napi)) ++#else ++ if (netif_rx_schedule_prep(dev)) ++#endif ++ { +#ifndef ATH_PRECISE_TSF + sc->sc_imask &= ~HAL_INT_RX; + ath_hal_intrset(ah, sc->sc_imask); +#endif ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) ++ __netif_rx_schedule(dev, &sc->sc_napi); ++#else + __netif_rx_schedule(dev); ++#endif + } } if (status & HAL_INT_TX) { #ifdef ATH_SUPERG_DYNTURBO -@@ -1729,6 +1738,11 @@ +@@ -2303,6 +2332,11 @@ } } #endif @@ -64,75 +89,160 @@ Index: madwifi-ng-r2525-20070630/ath/if_ath.c ATH_SCHEDULE_TQUEUE(&sc->sc_txtq, &needmark); } if (status & HAL_INT_BMISS) { -@@ -3323,10 +3337,10 @@ - * - * XXX Using in_softirq is not right since we might - * be called from other soft irq contexts than -- * ath_rx_tasklet. +@@ -2515,6 +2549,7 @@ + if (sc->sc_tx99 != NULL) + sc->sc_tx99->start(sc->sc_tx99); + #endif ++ ath_poll_enable(dev); + + done: + ATH_UNLOCK(sc); +@@ -2555,6 +2590,9 @@ + if (sc->sc_tx99 != NULL) + sc->sc_tx99->stop(sc->sc_tx99); + #endif ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) ++ ath_poll_disable(dev); ++#endif + netif_stop_queue(dev); /* XXX re-enabled by ath_newstate */ + dev->flags &= ~IFF_RUNNING; /* NB: avoid recursion */ + ieee80211_stop_running(ic); /* stop all VAPs */ +@@ -4013,12 +4051,47 @@ + return ath_keyset(sc, k, mac, vap->iv_bss); + } + ++static void ath_poll_disable(struct net_device *dev) ++{ ++ struct ath_softc *sc = dev->priv; ++ ++ /* ++ * XXX Using in_softirq is not right since we might ++ * be called from other soft irq contexts than + * ath_rx_poll ++ */ ++ if (!in_softirq()) { ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) ++ napi_disable(&sc->sc_napi); ++#else ++ netif_poll_disable(dev); ++#endif ++ } ++} ++ ++static void ath_poll_enable(struct net_device *dev) ++{ ++ struct ath_softc *sc = dev->priv; ++ ++ /* NB: see above */ ++ if (!in_softirq()) { ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) ++ napi_enable(&sc->sc_napi); ++#else ++ netif_poll_enable(dev); ++#endif ++ } ++} ++ ++ + /* + * Block/unblock tx+rx processing while a key change is done. + * We assume the caller serializes key management operations + * so we only need to worry about synchronization with other + * uses that originate in the driver. + */ ++#define IS_UP(_dev) \ ++ (((_dev)->flags & (IFF_RUNNING|IFF_UP)) == (IFF_RUNNING|IFF_UP)) + static void + ath_key_update_begin(struct ieee80211vap *vap) + { +@@ -4032,14 +4105,9 @@ + * When called from the rx tasklet we cannot use + * tasklet_disable because it will block waiting + * for us to complete execution. +- * +- * XXX Using in_softirq is not right since we might +- * be called from other soft irq contexts than +- * ath_rx_tasklet. */ - if (!in_softirq()) +- if (!in_softirq()) - tasklet_disable(&sc->sc_rxtq); -+ netif_poll_disable(dev); - netif_stop_queue(dev); +- netif_stop_queue(dev); ++ if (IS_UP(vap->iv_dev)) ++ netif_stop_queue(dev); } -@@ -3339,7 +3353,7 @@ - DPRINTF(sc, ATH_DEBUG_KEYCACHE, "%s:\n", __func__); - netif_start_queue(dev); - if (!in_softirq()) /* NB: see above */ + static void +@@ -4051,9 +4119,9 @@ + #endif + + DPRINTF(sc, ATH_DEBUG_KEYCACHE, "End\n"); +- netif_wake_queue(dev); +- if (!in_softirq()) /* NB: see above */ - tasklet_enable(&sc->sc_rxtq); -+ netif_poll_enable(dev); ++ ++ if (IS_UP(vap->iv_dev)) ++ netif_wake_queue(dev); } /* -@@ -5590,13 +5604,12 @@ +@@ -6360,15 +6428,25 @@ sc->sc_rxotherant = 0; } -static void -ath_rx_tasklet(TQUEUE_ARG data) +static int ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) ++ath_rx_poll(struct napi_struct *napi, int budget) ++#else +ath_rx_poll(struct net_device *dev, int *budget) ++#endif { #define PA2DESC(_sc, _pa) \ ((struct ath_desc *)((caddr_t)(_sc)->sc_rxdma.dd_desc + \ ((_pa) - (_sc)->sc_rxdma.dd_desc_paddr))) - struct net_device *dev = (struct net_device *)data; - struct ath_buf *bf; +- struct ath_buf *bf; ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) ++ struct ath_softc *sc = container_of(napi, struct ath_softc, sc_napi); ++ struct net_device *dev = sc->sc_dev; ++ u_int rx_limit = budget; ++#else struct ath_softc *sc = dev->priv; ++ u_int rx_limit = min(dev->quota, *budget); ++#endif ++ struct ath_buf *bf; struct ieee80211com *ic = &sc->sc_ic; -@@ -5609,12 +5622,15 @@ + struct ath_hal *ah = sc ? sc->sc_ah : NULL; + struct ath_desc *ds; +@@ -6378,8 +6456,10 @@ + unsigned int len; int type; u_int phyerr; - u_int64_t rs_tsf; + u_int processed = 0, early_stop = 0; -+ u_int rx_limit = dev->quota; - - /* Let the 802.11 layer know about the new noise floor */ - sc->sc_channoise = ath_hal_get_channel_noise(ah, &(sc->sc_curchan)); - ic->ic_channoise = sc->sc_channoise; - DPRINTF(sc, ATH_DEBUG_RX_PROC, "%s\n", __func__); + DPRINTF(sc, ATH_DEBUG_RX_PROC, "invoked\n"); +process_rx_again: do { bf = STAILQ_FIRST(&sc->sc_rxbuf); if (bf == NULL) { /* XXX ??? can this happen */ -@@ -5638,6 +5654,13 @@ +@@ -6403,6 +6483,15 @@ /* NB: never process the self-linked entry at the end */ break; } + ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) + processed++; -+ if (rx_limit-- < 0) { ++#endif ++ if (rx_limit-- < 2) { + early_stop = 1; + break; + } + skb = bf->bf_skb; - if (skb == NULL) { /* XXX ??? can this happen */ - printk("%s: no skbuff (%s)\n", DEV_NAME(dev), __func__); -@@ -5676,6 +5699,7 @@ + if (skb == NULL) { + EPRINTF(sc, "Dropping; buffer contains NULL skbuff.\n"); +@@ -6450,6 +6539,7 @@ sc->sc_stats.ast_rx_phyerr++; phyerr = rs->rs_phyerr & 0x1f; sc->sc_stats.ast_rx_phy[phyerr]++; @@ -140,43 +250,55 @@ Index: madwifi-ng-r2525-20070630/ath/if_ath.c } if (rs->rs_status & HAL_RXERR_DECRYPT) { /* -@@ -5892,9 +5916,33 @@ +@@ -6645,9 +6735,43 @@ STAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list); ATH_RXBUF_UNLOCK_IRQ(sc); } while (ath_rxbuf_init(sc, bf) == 0); + if (!early_stop) { ++ unsigned long flags; + /* Check if more data is received while we were + * processing the descriptor chain. + */ +#ifndef ATH_PRECISE_TSF -+ ATH_DISABLE_INTR(); ++ local_irq_save(flags); + if (sc->sc_isr & HAL_INT_RX) { ++ u_int64_t hw_tsf = ath_hal_gettsf64(ah); + sc->sc_isr &= ~HAL_INT_RX; -+ ATH_ENABLE_INTR(); -+ ath_uapsd_processtriggers(sc); ++ local_irq_restore(flags); ++ ath_uapsd_processtriggers(sc, hw_tsf); + goto process_rx_again; + } +#endif -+ netif_rx_complete(dev); -+ +#ifndef ATH_PRECISE_TSF + sc->sc_imask |= HAL_INT_RX; + ath_hal_intrset(ah, sc->sc_imask); -+ ATH_ENABLE_INTR(); ++ local_irq_restore(flags); +#endif + } + ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) ++ netif_rx_complete(dev, napi); ++#else ++ netif_rx_complete(dev); + *budget -= processed; ++ dev->quota -= processed; ++#endif /* rx signal state monitoring */ ath_hal_rxmonitor(ah, &sc->sc_halstats, &sc->sc_curchan); ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) ++ return processed; ++#else + return early_stop; ++#endif #undef PA2DESC } -@@ -7513,11 +7561,22 @@ +@@ -8298,12 +8422,24 @@ + { struct net_device *dev = (struct net_device *)data; struct ath_softc *sc = dev->priv; ++ unsigned long flags; +process_tx_again: if (txqactive(sc->sc_ah, 0)) @@ -184,96 +306,89 @@ Index: madwifi-ng-r2525-20070630/ath/if_ath.c if (txqactive(sc->sc_ah, sc->sc_cabq->axq_qnum)) ath_tx_processq(sc, sc->sc_cabq); -+ ATH_DISABLE_INTR(); ++ local_irq_save(flags); + if (sc->sc_isr & HAL_INT_TX) { + sc->sc_isr &= ~HAL_INT_TX; -+ ATH_ENABLE_INTR(); ++ local_irq_restore(flags); + goto process_tx_again; + } + sc->sc_imask |= HAL_INT_TX; + ath_hal_intrset(sc->sc_ah, sc->sc_imask); -+ ATH_ENABLE_INTR(); ++ local_irq_restore(flags); + netif_wake_queue(dev); if (sc->sc_softled) -@@ -7534,6 +7593,7 @@ +@@ -8319,7 +8455,9 @@ + { struct net_device *dev = (struct net_device *)data; struct ath_softc *sc = dev->priv; ++ unsigned long flags; +process_tx_again: /* * Process each active queue. */ -@@ -7554,6 +7614,16 @@ +@@ -8340,6 +8478,16 @@ if (sc->sc_uapsdq && txqactive(sc->sc_ah, sc->sc_uapsdq->axq_qnum)) ath_tx_processq(sc, sc->sc_uapsdq); -+ ATH_DISABLE_INTR(); ++ local_irq_save(flags); + if (sc->sc_isr & HAL_INT_TX) { + sc->sc_isr &= ~HAL_INT_TX; -+ ATH_ENABLE_INTR(); ++ local_irq_restore(flags); + goto process_tx_again; + } + sc->sc_imask |= HAL_INT_TX; + ath_hal_intrset(sc->sc_ah, sc->sc_imask); -+ ATH_ENABLE_INTR(); ++ local_irq_restore(flags); + netif_wake_queue(dev); if (sc->sc_softled) -@@ -7571,6 +7641,7 @@ +@@ -8355,13 +8503,25 @@ + struct net_device *dev = (struct net_device *)data; + struct ath_softc *sc = dev->priv; unsigned int i; ++ unsigned long flags; - /* Process each active queue. */ + /* Process each active queue. This includes sc_cabq, sc_xrtq and + * sc_uapsdq */ +process_tx_again: for (i = 0; i < HAL_NUM_TX_QUEUES; i++) if (ATH_TXQ_SETUP(sc, i) && txqactive(sc->sc_ah, i)) ath_tx_processq(sc, &sc->sc_txq[i]); -@@ -7579,6 +7650,16 @@ - ath_tx_processq(sc, sc->sc_xrtxq); - #endif -+ ATH_DISABLE_INTR(); ++ local_irq_save(flags); + if (sc->sc_isr & HAL_INT_TX) { + sc->sc_isr &= ~HAL_INT_TX; -+ ATH_ENABLE_INTR(); ++ local_irq_restore(flags); + goto process_tx_again; + } + sc->sc_imask |= HAL_INT_TX; + ath_hal_intrset(sc->sc_ah, sc->sc_imask); -+ ATH_ENABLE_INTR(); ++ local_irq_restore(flags); + netif_wake_queue(dev); if (sc->sc_softled) -@@ -7677,6 +7758,7 @@ - ath_draintxq(struct ath_softc *sc) - { - struct ath_hal *ah = sc->sc_ah; -+ int npend = 0; - unsigned int i; - - /* XXX return value */ -@@ -9195,9 +9277,9 @@ +@@ -10296,9 +10456,9 @@ dev->mtu = mtu; if ((dev->flags & IFF_RUNNING) && !sc->sc_invalid) { /* NB: the rx buffers may need to be reallocated */ - tasklet_disable(&sc->sc_rxtq); -+ netif_poll_disable(dev); ++ ath_poll_disable(dev); error = ath_reset(dev); - tasklet_enable(&sc->sc_rxtq); -+ netif_poll_enable(dev); ++ ath_poll_enable(dev); } ATH_UNLOCK(sc); -Index: madwifi-ng-r2525-20070630/ath/if_athvar.h -=================================================================== ---- madwifi-ng-r2525-20070630.orig/ath/if_athvar.h 2007-07-03 23:02:30.957978500 +0200 -+++ madwifi-ng-r2525-20070630/ath/if_athvar.h 2007-07-03 23:02:33.002106250 +0200 -@@ -49,6 +49,10 @@ - #include "net80211/ieee80211.h" /* XXX for WME_NUM_AC */ - #include +--- a/ath/if_athvar.h ++++ b/ath/if_athvar.h +@@ -53,6 +53,10 @@ + # include + #endif +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) +#define irqs_disabled() 0 @@ -282,7 +397,17 @@ Index: madwifi-ng-r2525-20070630/ath/if_athvar.h /* * Deduce if tasklets are available. If not then * fall back to using the immediate work queue. -@@ -625,7 +629,6 @@ +@@ -616,6 +620,9 @@ + struct ath_softc { + struct ieee80211com sc_ic; /* NB: must be first */ + struct net_device *sc_dev; ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) ++ struct napi_struct sc_napi; ++#endif + void __iomem *sc_iobase; /* address of the device */ + struct semaphore sc_lock; /* dev-level lock */ + struct net_device_stats sc_devstats; /* device statistics */ +@@ -730,7 +737,6 @@ struct ath_buf *sc_rxbufcur; /* current rx buffer */ u_int32_t *sc_rxlink; /* link ptr in last RX desc */ spinlock_t sc_rxbuflock; @@ -290,7 +415,7 @@ Index: madwifi-ng-r2525-20070630/ath/if_athvar.h struct ATH_TQ_STRUCT sc_rxorntq; /* rxorn intr tasklet */ u_int8_t sc_defant; /* current default antenna */ u_int8_t sc_rxotherant; /* RXs on non-default antenna */ -@@ -638,6 +641,7 @@ +@@ -745,6 +751,7 @@ u_int sc_txintrperiod; /* tx interrupt batching */ struct ath_txq sc_txq[HAL_NUM_TX_QUEUES]; struct ath_txq *sc_ac2q[WME_NUM_AC]; /* WME AC -> h/w qnum */ @@ -298,28 +423,120 @@ Index: madwifi-ng-r2525-20070630/ath/if_athvar.h struct ATH_TQ_STRUCT sc_txtq; /* tx intr tasklet */ u_int8_t sc_grppoll_str[GRPPOLL_RATE_STR_LEN]; struct ath_descdma sc_bdma; /* beacon descriptors */ -@@ -718,6 +722,8 @@ - #define ATH_TXBUF_LOCK_ASSERT(_sc) \ - KASSERT(spin_is_locked(&(_sc)->sc_txbuflock), ("txbuf not locked!")) +@@ -858,6 +865,8 @@ + #define ATH_TXBUF_LOCK_CHECK(_sc) + #endif +#define ATH_DISABLE_INTR local_irq_disable +#define ATH_ENABLE_INTR local_irq_enable #define ATH_RXBUF_LOCK_INIT(_sc) spin_lock_init(&(_sc)->sc_rxbuflock) #define ATH_RXBUF_LOCK_DESTROY(_sc) -Index: madwifi-ng-r2525-20070630/net80211/ieee80211_input.c -=================================================================== ---- madwifi-ng-r2525-20070630.orig/net80211/ieee80211_input.c 2007-07-03 23:02:31.926039000 +0200 -+++ madwifi-ng-r2525-20070630/net80211/ieee80211_input.c 2007-07-03 23:02:33.002106250 +0200 -@@ -1128,8 +1128,9 @@ - if (ni->ni_vlan != 0 && vap->iv_vlgrp != NULL) { +--- a/net80211/ieee80211_input.c ++++ b/net80211/ieee80211_input.c +@@ -1198,7 +1198,7 @@ /* attach vlan tag */ - vlan_hwaccel_receive_skb(skb, vap->iv_vlgrp, ni->ni_vlan); -- } else -- netif_rx(skb); -+ } else { -+ netif_receive_skb(skb); -+ } - dev->last_rx = jiffies; - } + struct ieee80211_node *ni_tmp = SKB_CB(skb)->ni; + if (vlan_hwaccel_receive_skb(skb, vap->iv_vlgrp, ni->ni_vlan) == NET_RX_DROP) { +- /* If netif_rx dropped the packet because ++ /* If netif_receive_skb dropped the packet because + * device was too busy */ + if (ni_tmp != NULL) { + /* node reference was leaked */ +@@ -1209,8 +1209,8 @@ + skb = NULL; /* SKB is no longer ours */ + } else { + struct ieee80211_node *ni_tmp = SKB_CB(skb)->ni; +- if (netif_rx(skb) == NET_RX_DROP) { +- /* If netif_rx dropped the packet because ++ if (netif_receive_skb(skb) == NET_RX_DROP) { ++ /* If netif_receive_skb dropped the packet because + * device was too busy */ + if (ni_tmp != NULL) { + /* node reference was leaked */ +@@ -2322,8 +2322,8 @@ + skb1->protocol = __constant_htons(0x0019); /* ETH_P_80211_RAW */ + + ni_tmp = SKB_CB(skb1)->ni; +- if (netif_rx(skb1) == NET_RX_DROP) { +- /* If netif_rx dropped the packet because ++ if (netif_receive_skb(skb1) == NET_RX_DROP) { ++ /* If netif_receive_skb dropped the packet because + * device was too busy */ + if (ni_tmp != NULL) { + /* node reference was leaked */ +--- a/net80211/ieee80211_monitor.c ++++ b/net80211/ieee80211_monitor.c +@@ -584,8 +584,8 @@ + skb1->protocol = + __constant_htons(0x0019); /* ETH_P_80211_RAW */ + +- if (netif_rx(skb1) == NET_RX_DROP) { +- /* If netif_rx dropped the packet because ++ if (netif_receive_skb(skb1) == NET_RX_DROP) { ++ /* If netif_receive_skb dropped the packet because + * device was too busy, reclaim the ref. in + * the skb. */ + if (SKB_CB(skb1)->ni != NULL) +--- a/net80211/ieee80211_skb.c ++++ b/net80211/ieee80211_skb.c +@@ -73,7 +73,7 @@ + #undef dev_queue_xmit + #undef kfree_skb + #undef kfree_skb_fast +-#undef netif_rx ++#undef netif_receive_skb + #undef pskb_copy + #undef skb_clone + #undef skb_copy +@@ -638,8 +638,8 @@ + grp, vlan_tag); + } + +-int netif_rx_debug(struct sk_buff *skb, const char* func, int line) { +- return netif_rx(untrack_skb(skb, 0, func, line, __func__, __LINE__)); ++int netif_receive_skb_debug(struct sk_buff *skb, const char* func, int line) { ++ return netif_receive_skb(untrack_skb(skb, 0, func, line, __func__, __LINE__)); + } + + struct sk_buff * alloc_skb_debug(unsigned int length, gfp_t gfp_mask, +@@ -760,7 +760,7 @@ } + + EXPORT_SYMBOL(vlan_hwaccel_receive_skb_debug); +-EXPORT_SYMBOL(netif_rx_debug); ++EXPORT_SYMBOL(netif_receive_skb_debug); + EXPORT_SYMBOL(alloc_skb_debug); + EXPORT_SYMBOL(dev_alloc_skb_debug); + EXPORT_SYMBOL(skb_clone_debug); +--- a/net80211/ieee80211_skb.h ++++ b/net80211/ieee80211_skb.h +@@ -116,7 +116,7 @@ + int vlan_hwaccel_receive_skb_debug(struct sk_buff *skb, + struct vlan_group *grp, unsigned short vlan_tag, + const char* func, int line); +-int netif_rx_debug(struct sk_buff *skb, const char* func, int line); ++int netif_receive_skb_debug(struct sk_buff *skb, const char* func, int line); + struct sk_buff * alloc_skb_debug(unsigned int length, gfp_t gfp_mask, + const char *func, int line); + struct sk_buff * dev_alloc_skb_debug(unsigned int length, +@@ -151,7 +151,7 @@ + #undef dev_queue_xmit + #undef kfree_skb + #undef kfree_skb_fast +-#undef netif_rx ++#undef netif_receive_skb + #undef pskb_copy + #undef skb_clone + #undef skb_copy +@@ -168,8 +168,8 @@ + skb_copy_expand_debug(_skb, _newheadroom, _newtailroom, _gfp_mask, __func__, __LINE__) + #define vlan_hwaccel_receive_skb(_skb, _grp, _tag) \ + vlan_hwaccel_receive_skb_debug(_skb, _grp, _tag, __func__, __LINE__) +-#define netif_rx(_skb) \ +- netif_rx_debug(_skb, __func__, __LINE__) ++#define netif_receive_skb(_skb) \ ++ netif_receive_skb_debug(_skb, __func__, __LINE__) + #define alloc_skb(_length, _gfp_mask) \ + alloc_skb_debug(_length, _gfp_mask, __func__, __LINE__) + #define dev_alloc_skb(_length) \