1 files changed, 550 insertions, 588 deletions

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index dce848f76d7..f54dff44ed5 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -86,7 +86,7 @@ MODULE_SUPPORTED_DEVICE("Atheros 5xxx WLAN cards");
 MODULE_LICENSE("Dual BSD/GPL");
 
 static int ath5k_init(struct ieee80211_hw *hw);
-static int ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan,
+static int ath5k_reset(struct ath5k_hw *ah, struct ieee80211_channel *chan,
 								bool skip_pcu);
 
 /* Known SREVs */
@@ -238,8 +238,8 @@ static const struct ath_ops ath5k_common_ops = {
 static int ath5k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request)
 {
 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
-	struct ath5k_softc *sc = hw->priv;
-	struct ath_regulatory *regulatory = ath5k_hw_regulatory(sc->ah);
+	struct ath5k_hw *ah = hw->priv;
+	struct ath_regulatory *regulatory = ath5k_hw_regulatory(ah);
 
 	return ath_reg_notifier_apply(wiphy, request, regulatory);
 }
@@ -289,7 +289,7 @@ ath5k_setup_channels(struct ath5k_hw *ah, struct ieee80211_channel *channels,
 		band = IEEE80211_BAND_2GHZ;
 		break;
 	default:
-		ATH5K_WARN(ah->ah_sc, "bad mode, not copying channels\n");
+		ATH5K_WARN(ah, "bad mode, not copying channels\n");
 		return 0;
 	}
 
@@ -327,51 +327,50 @@ ath5k_setup_channels(struct ath5k_hw *ah, struct ieee80211_channel *channels,
 }
 
 static void
-ath5k_setup_rate_idx(struct ath5k_softc *sc, struct ieee80211_supported_band *b)
+ath5k_setup_rate_idx(struct ath5k_hw *ah, struct ieee80211_supported_band *b)
 {
 	u8 i;
 
 	for (i = 0; i < AR5K_MAX_RATES; i++)
-		sc->rate_idx[b->band][i] = -1;
+		ah->rate_idx[b->band][i] = -1;
 
 	for (i = 0; i < b->n_bitrates; i++) {
-		sc->rate_idx[b->band][b->bitrates[i].hw_value] = i;
+		ah->rate_idx[b->band][b->bitrates[i].hw_value] = i;
 		if (b->bitrates[i].hw_value_short)
-			sc->rate_idx[b->band][b->bitrates[i].hw_value_short] = i;
+			ah->rate_idx[b->band][b->bitrates[i].hw_value_short] = i;
 	}
 }
 
 static int
 ath5k_setup_bands(struct ieee80211_hw *hw)
 {
-	struct ath5k_softc *sc = hw->priv;
-	struct ath5k_hw *ah = sc->ah;
+	struct ath5k_hw *ah = hw->priv;
 	struct ieee80211_supported_band *sband;
 	int max_c, count_c = 0;
 	int i;
 
-	BUILD_BUG_ON(ARRAY_SIZE(sc->sbands) < IEEE80211_NUM_BANDS);
-	max_c = ARRAY_SIZE(sc->channels);
+	BUILD_BUG_ON(ARRAY_SIZE(ah->sbands) < IEEE80211_NUM_BANDS);
+	max_c = ARRAY_SIZE(ah->channels);
 
 	/* 2GHz band */
-	sband = &sc->sbands[IEEE80211_BAND_2GHZ];
+	sband = &ah->sbands[IEEE80211_BAND_2GHZ];
 	sband->band = IEEE80211_BAND_2GHZ;
-	sband->bitrates = &sc->rates[IEEE80211_BAND_2GHZ][0];
+	sband->bitrates = &ah->rates[IEEE80211_BAND_2GHZ][0];
 
-	if (test_bit(AR5K_MODE_11G, sc->ah->ah_capabilities.cap_mode)) {
+	if (test_bit(AR5K_MODE_11G, ah->ah_capabilities.cap_mode)) {
 		/* G mode */
 		memcpy(sband->bitrates, &ath5k_rates[0],
 		       sizeof(struct ieee80211_rate) * 12);
 		sband->n_bitrates = 12;
 
-		sband->channels = sc->channels;
+		sband->channels = ah->channels;
 		sband->n_channels = ath5k_setup_channels(ah, sband->channels,
 					AR5K_MODE_11G, max_c);
 
 		hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
 		count_c = sband->n_channels;
 		max_c -= count_c;
-	} else if (test_bit(AR5K_MODE_11B, sc->ah->ah_capabilities.cap_mode)) {
+	} else if (test_bit(AR5K_MODE_11B, ah->ah_capabilities.cap_mode)) {
 		/* B mode */
 		memcpy(sband->bitrates, &ath5k_rates[0],
 		       sizeof(struct ieee80211_rate) * 4);
@@ -390,7 +389,7 @@ ath5k_setup_bands(struct ieee80211_hw *hw)
 			}
 		}
 
-		sband->channels = sc->channels;
+		sband->channels = ah->channels;
 		sband->n_channels = ath5k_setup_channels(ah, sband->channels,
 					AR5K_MODE_11B, max_c);
 
@@ -398,27 +397,27 @@ ath5k_setup_bands(struct ieee80211_hw *hw)
 		count_c = sband->n_channels;
 		max_c -= count_c;
 	}
-	ath5k_setup_rate_idx(sc, sband);
+	ath5k_setup_rate_idx(ah, sband);
 
 	/* 5GHz band, A mode */
-	if (test_bit(AR5K_MODE_11A, sc->ah->ah_capabilities.cap_mode)) {
-		sband = &sc->sbands[IEEE80211_BAND_5GHZ];
+	if (test_bit(AR5K_MODE_11A, ah->ah_capabilities.cap_mode)) {
+		sband = &ah->sbands[IEEE80211_BAND_5GHZ];
 		sband->band = IEEE80211_BAND_5GHZ;
-		sband->bitrates = &sc->rates[IEEE80211_BAND_5GHZ][0];
+		sband->bitrates = &ah->rates[IEEE80211_BAND_5GHZ][0];
 
 		memcpy(sband->bitrates, &ath5k_rates[4],
 		       sizeof(struct ieee80211_rate) * 8);
 		sband->n_bitrates = 8;
 
-		sband->channels = &sc->channels[count_c];
+		sband->channels = &ah->channels[count_c];
 		sband->n_channels = ath5k_setup_channels(ah, sband->channels,
 					AR5K_MODE_11A, max_c);
 
 		hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
 	}
-	ath5k_setup_rate_idx(sc, sband);
+	ath5k_setup_rate_idx(ah, sband);
 
-	ath5k_debug_dump_bands(sc);
+	ath5k_debug_dump_bands(ah);
 
 	return 0;
 }
@@ -428,14 +427,14 @@ ath5k_setup_bands(struct ieee80211_hw *hw)
  * To accomplish this we must first cleanup any pending DMA,
  * then restart stuff after a la  ath5k_init.
  *
- * Called with sc->lock.
+ * Called with ah->lock.
  */
 int
-ath5k_chan_set(struct ath5k_softc *sc, struct ieee80211_channel *chan)
+ath5k_chan_set(struct ath5k_hw *ah, struct ieee80211_channel *chan)
 {
-	ATH5K_DBG(sc, ATH5K_DEBUG_RESET,
+	ATH5K_DBG(ah, ATH5K_DEBUG_RESET,
 		  "channel set, resetting (%u -> %u MHz)\n",
-		  sc->curchan->center_freq, chan->center_freq);
+		  ah->curchan->center_freq, chan->center_freq);
 
 	/*
 	 * To switch channels clear any pending DMA operations;
@@ -443,7 +442,7 @@ ath5k_chan_set(struct ath5k_softc *sc, struct ieee80211_channel *chan)
 	 * hardware at the new frequency, and then re-enable
 	 * the relevant bits of the h/w.
 	 */
-	return ath5k_reset(sc, chan, true);
+	return ath5k_reset(ah, chan, true);
 }
 
 void ath5k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
@@ -487,10 +486,10 @@ void ath5k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
 }
 
 void
-ath5k_update_bssid_mask_and_opmode(struct ath5k_softc *sc,
+ath5k_update_bssid_mask_and_opmode(struct ath5k_hw *ah,
 				   struct ieee80211_vif *vif)
 {
-	struct ath_common *common = ath5k_hw_common(sc->ah);
+	struct ath_common *common = ath5k_hw_common(ah);
 	struct ath5k_vif_iter_data iter_data;
 	u32 rfilt;
 
@@ -509,24 +508,24 @@ ath5k_update_bssid_mask_and_opmode(struct ath5k_softc *sc,
 		ath5k_vif_iter(&iter_data, vif->addr, vif);
 
 	/* Get list of all active MAC addresses */
-	ieee80211_iterate_active_interfaces_atomic(sc->hw, ath5k_vif_iter,
+	ieee80211_iterate_active_interfaces_atomic(ah->hw, ath5k_vif_iter,
 						   &iter_data);
-	memcpy(sc->bssidmask, iter_data.mask, ETH_ALEN);
+	memcpy(ah->bssidmask, iter_data.mask, ETH_ALEN);
 
-	sc->opmode = iter_data.opmode;
-	if (sc->opmode == NL80211_IFTYPE_UNSPECIFIED)
+	ah->opmode = iter_data.opmode;
+	if (ah->opmode == NL80211_IFTYPE_UNSPECIFIED)
 		/* Nothing active, default to station mode */
-		sc->opmode = NL80211_IFTYPE_STATION;
+		ah->opmode = NL80211_IFTYPE_STATION;
 
-	ath5k_hw_set_opmode(sc->ah, sc->opmode);
-	ATH5K_DBG(sc, ATH5K_DEBUG_MODE, "mode setup opmode %d (%s)\n",
-		  sc->opmode, ath_opmode_to_string(sc->opmode));
+	ath5k_hw_set_opmode(ah, ah->opmode);
+	ATH5K_DBG(ah, ATH5K_DEBUG_MODE, "mode setup opmode %d (%s)\n",
+		  ah->opmode, ath_opmode_to_string(ah->opmode));
 
 	if (iter_data.need_set_hw_addr && iter_data.found_active)
-		ath5k_hw_set_lladdr(sc->ah, iter_data.active_mac);
+		ath5k_hw_set_lladdr(ah, iter_data.active_mac);
 
-	if (ath5k_hw_hasbssidmask(sc->ah))
-		ath5k_hw_set_bssid_mask(sc->ah, sc->bssidmask);
+	if (ath5k_hw_hasbssidmask(ah))
+		ath5k_hw_set_bssid_mask(ah, ah->bssidmask);
 
 	/* Set up RX Filter */
 	if (iter_data.n_stas > 1) {
@@ -534,16 +533,16 @@ ath5k_update_bssid_mask_and_opmode(struct ath5k_softc *sc,
 		 * different APs, ARPs are not received (most of the time?)
 		 * Enabling PROMISC appears to fix that problem.
 		 */
-		sc->filter_flags |= AR5K_RX_FILTER_PROM;
+		ah->filter_flags |= AR5K_RX_FILTER_PROM;
 	}
 
-	rfilt = sc->filter_flags;
-	ath5k_hw_set_rx_filter(sc->ah, rfilt);
-	ATH5K_DBG(sc, ATH5K_DEBUG_MODE, "RX filter 0x%x\n", rfilt);
+	rfilt = ah->filter_flags;
+	ath5k_hw_set_rx_filter(ah, rfilt);
+	ATH5K_DBG(ah, ATH5K_DEBUG_MODE, "RX filter 0x%x\n", rfilt);
 }
 
 static inline int
-ath5k_hw_to_driver_rix(struct ath5k_softc *sc, int hw_rix)
+ath5k_hw_to_driver_rix(struct ath5k_hw *ah, int hw_rix)
 {
 	int rix;
 
@@ -552,7 +551,7 @@ ath5k_hw_to_driver_rix(struct ath5k_softc *sc, int hw_rix)
 			"hw_rix out of bounds: %x\n", hw_rix))
 		return 0;
 
-	rix = sc->rate_idx[sc->curchan->band][hw_rix];
+	rix = ah->rate_idx[ah->curchan->band][hw_rix];
 	if (WARN(rix < 0, "invalid hw_rix: %x\n", hw_rix))
 		rix = 0;
 
@@ -564,9 +563,9 @@ ath5k_hw_to_driver_rix(struct ath5k_softc *sc, int hw_rix)
 \***************/
 
 static
-struct sk_buff *ath5k_rx_skb_alloc(struct ath5k_softc *sc, dma_addr_t *skb_addr)
+struct sk_buff *ath5k_rx_skb_alloc(struct ath5k_hw *ah, dma_addr_t *skb_addr)
 {
-	struct ath_common *common = ath5k_hw_common(sc->ah);
+	struct ath_common *common = ath5k_hw_common(ah);
 	struct sk_buff *skb;
 
 	/*
@@ -578,17 +577,17 @@ struct sk_buff *ath5k_rx_skb_alloc(struct ath5k_softc *sc, dma_addr_t *skb_addr)
 			      GFP_ATOMIC);
 
 	if (!skb) {
-		ATH5K_ERR(sc, "can't alloc skbuff of size %u\n",
+		ATH5K_ERR(ah, "can't alloc skbuff of size %u\n",
 				common->rx_bufsize);
 		return NULL;
 	}
 
-	*skb_addr = dma_map_single(sc->dev,
+	*skb_addr = dma_map_single(ah->dev,
 				   skb->data, common->rx_bufsize,
 				   DMA_FROM_DEVICE);
 
-	if (unlikely(dma_mapping_error(sc->dev, *skb_addr))) {
-		ATH5K_ERR(sc, "%s: DMA mapping failed\n", __func__);
+	if (unlikely(dma_mapping_error(ah->dev, *skb_addr))) {
+		ATH5K_ERR(ah, "%s: DMA mapping failed\n", __func__);
 		dev_kfree_skb(skb);
 		return NULL;
 	}
@@ -596,15 +595,14 @@ struct sk_buff *ath5k_rx_skb_alloc(struct ath5k_softc *sc, dma_addr_t *skb_addr)
 }
 
 static int
-ath5k_rxbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
+ath5k_rxbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf)
 {
-	struct ath5k_hw *ah = sc->ah;
 	struct sk_buff *skb = bf->skb;
 	struct ath5k_desc *ds;
 	int ret;
 
 	if (!skb) {
-		skb = ath5k_rx_skb_alloc(sc, &bf->skbaddr);
+		skb = ath5k_rx_skb_alloc(ah, &bf->skbaddr);
 		if (!skb)
 			return -ENOMEM;
 		bf->skb = skb;
@@ -630,13 +628,13 @@ ath5k_rxbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
 	ds->ds_data = bf->skbaddr;
 	ret = ath5k_hw_setup_rx_desc(ah, ds, ah->common.rx_bufsize, 0);
 	if (ret) {
-		ATH5K_ERR(sc, "%s: could not setup RX desc\n", __func__);
+		ATH5K_ERR(ah, "%s: could not setup RX desc\n", __func__);
 		return ret;
 	}
 
-	if (sc->rxlink != NULL)
-		*sc->rxlink = bf->daddr;
-	sc->rxlink = &ds->ds_link;
+	if (ah->rxlink != NULL)
+		*ah->rxlink = bf->daddr;
+	ah->rxlink = &ds->ds_link;
 	return 0;
 }
 
@@ -664,10 +662,9 @@ static enum ath5k_pkt_type get_hw_packet_type(struct sk_buff *skb)
 }
 
 static int
-ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf,
+ath5k_txbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf,
 		  struct ath5k_txq *txq, int padsize)
 {
-	struct ath5k_hw *ah = sc->ah;
 	struct ath5k_desc *ds = bf->desc;
 	struct sk_buff *skb = bf->skb;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -683,10 +680,10 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf,
 	flags = AR5K_TXDESC_INTREQ | AR5K_TXDESC_CLRDMASK;
 
 	/* XXX endianness */
-	bf->skbaddr = dma_map_single(sc->dev, skb->data, skb->len,
+	bf->skbaddr = dma_map_single(ah->dev, skb->data, skb->len,
 			DMA_TO_DEVICE);
 
-	rate = ieee80211_get_tx_rate(sc->hw, info);
+	rate = ieee80211_get_tx_rate(ah->hw, info);
 	if (!rate) {
 		ret = -EINVAL;
 		goto err_unmap;
@@ -710,20 +707,20 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf,
 	}
 	if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
 		flags |= AR5K_TXDESC_RTSENA;
-		cts_rate = ieee80211_get_rts_cts_rate(sc->hw, info)->hw_value;
-		duration = le16_to_cpu(ieee80211_rts_duration(sc->hw,
+		cts_rate = ieee80211_get_rts_cts_rate(ah->hw, info)->hw_value;
+		duration = le16_to_cpu(ieee80211_rts_duration(ah->hw,
 			info->control.vif, pktlen, info));
 	}
 	if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 		flags |= AR5K_TXDESC_CTSENA;
-		cts_rate = ieee80211_get_rts_cts_rate(sc->hw, info)->hw_value;
-		duration = le16_to_cpu(ieee80211_ctstoself_duration(sc->hw,
+		cts_rate = ieee80211_get_rts_cts_rate(ah->hw, info)->hw_value;
+		duration = le16_to_cpu(ieee80211_ctstoself_duration(ah->hw,
 			info->control.vif, pktlen, info));
 	}
 	ret = ah->ah_setup_tx_desc(ah, ds, pktlen,
 		ieee80211_get_hdrlen_from_skb(skb), padsize,
 		get_hw_packet_type(skb),
-		(sc->power_level * 2),
+		(ah->power_level * 2),
 		hw_rate,
 		info->control.rates[0].count, keyidx, ah->ah_tx_ant, flags,
 		cts_rate, duration);
@@ -733,7 +730,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf,
 	memset(mrr_rate, 0, sizeof(mrr_rate));
 	memset(mrr_tries, 0, sizeof(mrr_tries));
 	for (i = 0; i < 3; i++) {
-		rate = ieee80211_get_alt_retry_rate(sc->hw, info, i);
+		rate = ieee80211_get_alt_retry_rate(ah->hw, info, i);
 		if (!rate)
 			break;
 
@@ -764,7 +761,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf,
 
 	return 0;
 err_unmap:
-	dma_unmap_single(sc->dev, bf->skbaddr, skb->len, DMA_TO_DEVICE);
+	dma_unmap_single(ah->dev, bf->skbaddr, skb->len, DMA_TO_DEVICE);
 	return ret;
 }
 
@@ -773,7 +770,7 @@ err_unmap:
 \*******************/
 
 static int
-ath5k_desc_alloc(struct ath5k_softc *sc)
+ath5k_desc_alloc(struct ath5k_hw *ah)
 {
 	struct ath5k_desc *ds;
 	struct ath5k_buf *bf;
@@ -782,68 +779,68 @@ ath5k_desc_alloc(struct ath5k_softc *sc)
 	int ret;
 
 	/* allocate descriptors */
-	sc->desc_len = sizeof(struct ath5k_desc) *
+	ah->desc_len = sizeof(struct ath5k_desc) *
 			(ATH_TXBUF + ATH_RXBUF + ATH_BCBUF + 1);
 
-	sc->desc = dma_alloc_coherent(sc->dev, sc->desc_len,
-				&sc->desc_daddr, GFP_KERNEL);
-	if (sc->desc == NULL) {
-		ATH5K_ERR(sc, "can't allocate descriptors\n");
+	ah->desc = dma_alloc_coherent(ah->dev, ah->desc_len,
+				&ah->desc_daddr, GFP_KERNEL);
+	if (ah->desc == NULL) {
+		ATH5K_ERR(ah, "can't allocate descriptors\n");
 		ret = -ENOMEM;
 		goto err;
 	}
-	ds = sc->desc;
-	da = sc->desc_daddr;
-	ATH5K_DBG(sc, ATH5K_DEBUG_ANY, "DMA map: %p (%zu) -> %llx\n",
-		ds, sc->desc_len, (unsigned long long)sc->desc_daddr);
+	ds = ah->desc;
+	da = ah->desc_daddr;
+	ATH5K_DBG(ah, ATH5K_DEBUG_ANY, "DMA map: %p (%zu) -> %llx\n",
+		ds, ah->desc_len, (unsigned long long)ah->desc_daddr);
 
 	bf = kcalloc(1 + ATH_TXBUF + ATH_RXBUF + ATH_BCBUF,
 			sizeof(struct ath5k_buf), GFP_KERNEL);
 	if (bf == NULL) {
-		ATH5K_ERR(sc, "can't allocate bufptr\n");
+		ATH5K_ERR(ah, "can't allocate bufptr\n");
 		ret = -ENOMEM;
 		goto err_free;
 	}
-	sc->bufptr = bf;
+	ah->bufptr = bf;
 
-	INIT_LIST_HEAD(&sc->rxbuf);
+	INIT_LIST_HEAD(&ah->rxbuf);
 	for (i = 0; i < ATH_RXBUF; i++, bf++, ds++, da += sizeof(*ds)) {
 		bf->desc = ds;
 		bf->daddr = da;
-		list_add_tail(&bf->list, &sc->rxbuf);
+		list_add_tail(&bf->list, &ah->rxbuf);
 	}
 
-	INIT_LIST_HEAD(&sc->txbuf);
-	sc->txbuf_len = ATH_TXBUF;
+	INIT_LIST_HEAD(&ah->txbuf);
+	ah->txbuf_len = ATH_TXBUF;
 	for (i = 0; i < ATH_TXBUF; i++, bf++, ds++, da += sizeof(*ds)) {
 		bf->desc = ds;
 		bf->daddr = da;
-		list_add_tail(&bf->list, &sc->txbuf);
+		list_add_tail(&bf->list, &ah->txbuf);
 	}
 
 	/* beacon buffers */
-	INIT_LIST_HEAD(&sc->bcbuf);
+	INIT_LIST_HEAD(&ah->bcbuf);
 	for (i = 0; i < ATH_BCBUF; i++, bf++, ds++, da += sizeof(*ds)) {
 		bf->desc = ds;
 		bf->daddr = da;
-		list_add_tail(&bf->list, &sc->bcbuf);
+		list_add_tail(&bf->list, &ah->bcbuf);
 	}
 
 	return 0;
 err_free:
-	dma_free_coherent(sc->dev, sc->desc_len, sc->desc, sc->desc_daddr);
+	dma_free_coherent(ah->dev, ah->desc_len, ah->desc, ah->desc_daddr);
 err:
-	sc->desc = NULL;
+	ah->desc = NULL;
 	return ret;
 }
 
 void
-ath5k_txbuf_free_skb(struct ath5k_softc *sc, struct ath5k_buf *bf)
+ath5k_txbuf_free_skb(struct ath5k_hw *ah, struct ath5k_buf *bf)
 {
 	BUG_ON(!bf);
 	if (!bf->skb)
 		return;
-	dma_unmap_single(sc->dev, bf->skbaddr, bf->skb->len,
+	dma_unmap_single(ah->dev, bf->skbaddr, bf->skb->len,
 			DMA_TO_DEVICE);
 	dev_kfree_skb_any(bf->skb);
 	bf->skb = NULL;
@@ -852,15 +849,14 @@ ath5k_txbuf_free_skb(struct ath5k_softc *sc, struct ath5k_buf *bf)
 }
 
 void
-ath5k_rxbuf_free_skb(struct ath5k_softc *sc, struct ath5k_buf *bf)
+ath5k_rxbuf_free_skb(struct ath5k_hw *ah, struct ath5k_buf *bf)
 {
-	struct ath5k_hw *ah = sc->ah;
 	struct ath_common *common = ath5k_hw_common(ah);
 
 	BUG_ON(!bf);
 	if (!bf->skb)
 		return;
-	dma_unmap_single(sc->dev, bf->skbaddr, common->rx_bufsize,
+	dma_unmap_single(ah->dev, bf->skbaddr, common->rx_bufsize,
 			DMA_FROM_DEVICE);
 	dev_kfree_skb_any(bf->skb);
 	bf->skb = NULL;
@@ -869,24 +865,24 @@ ath5k_rxbuf_free_skb(struct ath5k_softc *sc, struct ath5k_buf *bf)
 }
 
 static void
-ath5k_desc_free(struct ath5k_softc *sc)
+ath5k_desc_free(struct ath5k_hw *ah)
 {
 	struct ath5k_buf *bf;
 
-	list_for_each_entry(bf, &sc->txbuf, list)
-		ath5k_txbuf_free_skb(sc, bf);
-	list_for_each_entry(bf, &sc->rxbuf, list)
-		ath5k_rxbuf_free_skb(sc, bf);
-	list_for_each_entry(bf, &sc->bcbuf, list)
-		ath5k_txbuf_free_skb(sc, bf);
+	list_for_each_entry(bf, &ah->txbuf, list)
+		ath5k_txbuf_free_skb(ah, bf);
+	list_for_each_entry(bf, &ah->rxbuf, list)
+		ath5k_rxbuf_free_skb(ah, bf);
+	list_for_each_entry(bf, &ah->bcbuf, list)
+		ath5k_txbuf_free_skb(ah, bf);
 
 	/* Free memory associated with all descriptors */
-	dma_free_coherent(sc->dev, sc->desc_len, sc->desc, sc->desc_daddr);
-	sc->desc = NULL;
-	sc->desc_daddr = 0;
+	dma_free_coherent(ah->dev, ah->desc_len, ah->desc, ah->desc_daddr);
+	ah->desc = NULL;
+	ah->desc_daddr = 0;
 
-	kfree(sc->bufptr);
-	sc->bufptr = NULL;
+	kfree(ah->bufptr);
+	ah->bufptr = NULL;
 }
 
 
@@ -895,10 +891,9 @@ ath5k_desc_free(struct ath5k_softc *sc)
 \**************/
 
 static struct ath5k_txq *
-ath5k_txq_setup(struct ath5k_softc *sc,
+ath5k_txq_setup(struct ath5k_hw *ah,
 		int qtype, int subtype)
 {
-	struct ath5k_hw *ah = sc->ah;
 	struct ath5k_txq *txq;
 	struct ath5k_txq_info qi = {
 		.tqi_subtype = subtype,
@@ -932,13 +927,13 @@ ath5k_txq_setup(struct ath5k_softc *sc,
 		 */
 		return ERR_PTR(qnum);
 	}
-	if (qnum >= ARRAY_SIZE(sc->txqs)) {
-		ATH5K_ERR(sc, "hw qnum %u out of range, max %tu!\n",
-			qnum, ARRAY_SIZE(sc->txqs));
+	if (qnum >= ARRAY_SIZE(ah->txqs)) {
+		ATH5K_ERR(ah, "hw qnum %u out of range, max %tu!\n",
+			qnum, ARRAY_SIZE(ah->txqs));
 		ath5k_hw_release_tx_queue(ah, qnum);
 		return ERR_PTR(-EINVAL);
 	}
-	txq = &sc->txqs[qnum];
+	txq = &ah->txqs[qnum];
 	if (!txq->setup) {
 		txq->qnum = qnum;
 		txq->link = NULL;
@@ -950,7 +945,7 @@ ath5k_txq_setup(struct ath5k_softc *sc,
 		txq->txq_poll_mark = false;
 		txq->txq_stuck = 0;
 	}
-	return &sc->txqs[qnum];
+	return &ah->txqs[qnum];
 }
 
 static int
@@ -970,18 +965,17 @@ ath5k_beaconq_setup(struct ath5k_hw *ah)
 }
 
 static int
-ath5k_beaconq_config(struct ath5k_softc *sc)
+ath5k_beaconq_config(struct ath5k_hw *ah)
 {
-	struct ath5k_hw *ah = sc->ah;
 	struct ath5k_txq_info qi;
 	int ret;
 
-	ret = ath5k_hw_get_tx_queueprops(ah, sc->bhalq, &qi);
+	ret = ath5k_hw_get_tx_queueprops(ah, ah->bhalq, &qi);
 	if (ret)
 		goto err;
 
-	if (sc->opmode == NL80211_IFTYPE_AP ||
-	    sc->opmode == NL80211_IFTYPE_MESH_POINT) {
+	if (ah->opmode == NL80211_IFTYPE_AP ||
+	    ah->opmode == NL80211_IFTYPE_MESH_POINT) {
 		/*
 		 * Always burst out beacon and CAB traffic
 		 * (aifs = cwmin = cwmax = 0)
@@ -989,7 +983,7 @@ ath5k_beaconq_config(struct ath5k_softc *sc)
 		qi.tqi_aifs = 0;
 		qi.tqi_cw_min = 0;
 		qi.tqi_cw_max = 0;
-	} else if (sc->opmode == NL80211_IFTYPE_ADHOC) {
+	} else if (ah->opmode == NL80211_IFTYPE_ADHOC) {
 		/*
 		 * Adhoc mode; backoff between 0 and (2 * cw_min).
 		 */
@@ -998,17 +992,17 @@ ath5k_beaconq_config(struct ath5k_softc *sc)
 		qi.tqi_cw_max = 2 * AR5K_TUNE_CWMIN;
 	}
 
-	ATH5K_DBG(sc, ATH5K_DEBUG_BEACON,
+	ATH5K_DBG(ah, ATH5K_DEBUG_BEACON,
 		"beacon queueprops tqi_aifs:%d tqi_cw_min:%d tqi_cw_max:%d\n",
 		qi.tqi_aifs, qi.tqi_cw_min, qi.tqi_cw_max);
 
-	ret = ath5k_hw_set_tx_queueprops(ah, sc->bhalq, &qi);
+	ret = ath5k_hw_set_tx_queueprops(ah, ah->bhalq, &qi);
 	if (ret) {
-		ATH5K_ERR(sc, "%s: unable to update parameters for beacon "
+		ATH5K_ERR(ah, "%s: unable to update parameters for beacon "
 			"hardware queue!\n", __func__);
 		goto err;
 	}
-	ret = ath5k_hw_reset_tx_queue(ah, sc->bhalq); /* push to h/w */
+	ret = ath5k_hw_reset_tx_queue(ah, ah->bhalq); /* push to h/w */
 	if (ret)
 		goto err;
 
@@ -1017,7 +1011,7 @@ ath5k_beaconq_config(struct ath5k_softc *sc)
 	if (ret)
 		goto err;
 
-	qi.tqi_ready_time = (sc->bintval * 80) / 100;
+	qi.tqi_ready_time = (ah->bintval * 80) / 100;
 	ret = ath5k_hw_set_tx_queueprops(ah, AR5K_TX_QUEUE_ID_CAB, &qi);
 	if (ret)
 		goto err;
@@ -1030,7 +1024,7 @@ err:
 /**
  * ath5k_drain_tx_buffs - Empty tx buffers
  *
- * @sc The &struct ath5k_softc
+ * @ah The &struct ath5k_hw
  *
  * Empty tx buffers from all queues in preparation
  * of a reset or during shutdown.
@@ -1039,26 +1033,26 @@ err:
  *	we do not need to block ath5k_tx_tasklet
  */
 static void
-ath5k_drain_tx_buffs(struct ath5k_softc *sc)
+ath5k_drain_tx_buffs(struct ath5k_hw *ah)
 {
 	struct ath5k_txq *txq;
 	struct ath5k_buf *bf, *bf0;
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(sc->txqs); i++) {
-		if (sc->txqs[i].setup) {
-			txq = &sc->txqs[i];
+	for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {
+		if (ah->txqs[i].setup) {
+			txq = &ah->txqs[i];
 			spin_lock_bh(&txq->lock);
 			list_for_each_entry_safe(bf, bf0, &txq->q, list) {
-				ath5k_debug_printtxbuf(sc, bf);
+				ath5k_debug_printtxbuf(ah, bf);
 
-				ath5k_txbuf_free_skb(sc, bf);
+				ath5k_txbuf_free_skb(ah, bf);
 
-				spin_lock_bh(&sc->txbuflock);
-				list_move_tail(&bf->list, &sc->txbuf);
-				sc->txbuf_len++;
+				spin_lock_bh(&ah->txbuflock);
+				list_move_tail(&bf->list, &ah->txbuf);
+				ah->txbuf_len++;
 				txq->txq_len--;
-				spin_unlock_bh(&sc->txbuflock);
+				spin_unlock_bh(&ah->txbuflock);
 			}
 			txq->link = NULL;
 			txq->txq_poll_mark = false;
@@ -1068,14 +1062,14 @@ ath5k_drain_tx_buffs(struct ath5k_softc *sc)
 }
 
 static void
-ath5k_txq_release(struct ath5k_softc *sc)
+ath5k_txq_release(struct ath5k_hw *ah)
 {
-	struct ath5k_txq *txq = sc->txqs;
+	struct ath5k_txq *txq = ah->txqs;
 	unsigned int i;
 
-	for (i = 0; i < ARRAY_SIZE(sc->txqs); i++, txq++)
+	for (i = 0; i < ARRAY_SIZE(ah->txqs); i++, txq++)
 		if (txq->setup) {
-			ath5k_hw_release_tx_queue(sc->ah, txq->qnum);
+			ath5k_hw_release_tx_queue(ah, txq->qnum);
 			txq->setup = false;
 		}
 }
@@ -1089,33 +1083,32 @@ ath5k_txq_release(struct ath5k_softc *sc)
  * Enable the receive h/w following a reset.
  */
 static int
-ath5k_rx_start(struct ath5k_softc *sc)
+ath5k_rx_start(struct ath5k_hw *ah)
 {
-	struct ath5k_hw *ah = sc->ah;
 	struct ath_common *common = ath5k_hw_common(ah);
 	struct ath5k_buf *bf;
 	int ret;
 
 	common->rx_bufsize = roundup(IEEE80211_MAX_FRAME_LEN, common->cachelsz);
 
-	ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "cachelsz %u rx_bufsize %u\n",
+	ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "cachelsz %u rx_bufsize %u\n",
 		  common->cachelsz, common->rx_bufsize);
 
-	spin_lock_bh(&sc->rxbuflock);
-	sc->rxlink = NULL;
-	list_for_each_entry(bf, &sc->rxbuf, list) {
-		ret = ath5k_rxbuf_setup(sc, bf);
+	spin_lock_bh(&ah->rxbuflock);
+	ah->rxlink = NULL;
+	list_for_each_entry(bf, &ah->rxbuf, list) {
+		ret = ath5k_rxbuf_setup(ah, bf);
 		if (ret != 0) {
-			spin_unlock_bh(&sc->rxbuflock);
+			spin_unlock_bh(&ah->rxbuflock);
 			goto err;
 		}
 	}
-	bf = list_first_entry(&sc->rxbuf, struct ath5k_buf, list);
+	bf = list_first_entry(&ah->rxbuf, struct ath5k_buf, list);
 	ath5k_hw_set_rxdp(ah, bf->daddr);
-	spin_unlock_bh(&sc->rxbuflock);
+	spin_unlock_bh(&ah->rxbuflock);
 
 	ath5k_hw_start_rx_dma(ah);	/* enable recv descriptors */
-	ath5k_update_bssid_mask_and_opmode(sc, NULL); /* set filters, etc. */
+	ath5k_update_bssid_mask_and_opmode(ah, NULL); /* set filters, etc. */
 	ath5k_hw_start_rx_pcu(ah);	/* re-enable PCU/DMA engine */
 
 	return 0;
@@ -1131,21 +1124,19 @@ err:
  * does.
  */
 static void
-ath5k_rx_stop(struct ath5k_softc *sc)
+ath5k_rx_stop(struct ath5k_hw *ah)
 {
-	struct ath5k_hw *ah = sc->ah;
 
 	ath5k_hw_set_rx_filter(ah, 0);	/* clear recv filter */
 	ath5k_hw_stop_rx_pcu(ah);	/* disable PCU */
 
-	ath5k_debug_printrxbuffs(sc, ah);
+	ath5k_debug_printrxbuffs(ah);
 }
 
 static unsigned int
-ath5k_rx_decrypted(struct ath5k_softc *sc, struct sk_buff *skb,
+ath5k_rx_decrypted(struct ath5k_hw *ah, struct sk_buff *skb,
 		   struct ath5k_rx_status *rs)
 {
-	struct ath5k_hw *ah = sc->ah;
 	struct ath_common *common = ath5k_hw_common(ah);
 	struct ieee80211_hdr *hdr = (void *)skb->data;
 	unsigned int keyix, hlen;
@@ -1172,10 +1163,10 @@ ath5k_rx_decrypted(struct ath5k_softc *sc, struct sk_buff *skb,
 
 
 static void
-ath5k_check_ibss_tsf(struct ath5k_softc *sc, struct sk_buff *skb,
+ath5k_check_ibss_tsf(struct ath5k_hw *ah, struct sk_buff *skb,
 		     struct ieee80211_rx_status *rxs)
 {
-	struct ath_common *common = ath5k_hw_common(sc->ah);
+	struct ath_common *common = ath5k_hw_common(ah);
 	u64 tsf, bc_tstamp;
 	u32 hw_tu;
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
@@ -1188,11 +1179,11 @@ ath5k_check_ibss_tsf(struct ath5k_softc *sc, struct sk_buff *skb,
 		 * have updated the local TSF. We have to work around various
 		 * hardware bugs, though...
 		 */
-		tsf = ath5k_hw_get_tsf64(sc->ah);
+		tsf = ath5k_hw_get_tsf64(ah);
 		bc_tstamp = le64_to_cpu(mgmt->u.beacon.timestamp);
 		hw_tu = TSF_TO_TU(tsf);
 
-		ATH5K_DBG_UNLIMIT(sc, ATH5K_DEBUG_BEACON,
+		ATH5K_DBG_UNLIMIT(ah, ATH5K_DEBUG_BEACON,
 			"beacon %llx mactime %llx (diff %lld) tsf now %llx\n",
 			(unsigned long long)bc_tstamp,
 			(unsigned long long)rxs->mactime,
@@ -1211,7 +1202,7 @@ ath5k_check_ibss_tsf(struct ath5k_softc *sc, struct sk_buff *skb,
 		 * received, not like mac80211 which defines it at the start.
 		 */
 		if (bc_tstamp > rxs->mactime) {
-			ATH5K_DBG_UNLIMIT(sc, ATH5K_DEBUG_BEACON,
+			ATH5K_DBG_UNLIMIT(ah, ATH5K_DEBUG_BEACON,
 				"fixing mactime from %llx to %llx\n",
 				(unsigned long long)rxs->mactime,
 				(unsigned long long)tsf);
@@ -1224,25 +1215,24 @@ ath5k_check_ibss_tsf(struct ath5k_softc *sc, struct sk_buff *skb,
 		 * beacons. This also takes care of synchronizing beacon sending
 		 * times with other stations.
 		 */
-		if (hw_tu >= sc->nexttbtt)
-			ath5k_beacon_update_timers(sc, bc_tstamp);
+		if (hw_tu >= ah->nexttbtt)
+			ath5k_beacon_update_timers(ah, bc_tstamp);
 
 		/* Check if the beacon timers are still correct, because a TSF
 		 * update might have created a window between them - for a
 		 * longer description see the comment of this function: */
-		if (!ath5k_hw_check_beacon_timers(sc->ah, sc->bintval)) {
-			ath5k_beacon_update_timers(sc, bc_tstamp);
-			ATH5K_DBG_UNLIMIT(sc, ATH5K_DEBUG_BEACON,
+		if (!ath5k_hw_check_beacon_timers(ah, ah->bintval)) {
+			ath5k_beacon_update_timers(ah, bc_tstamp);
+			ATH5K_DBG_UNLIMIT(ah, ATH5K_DEBUG_BEACON,
 				"fixed beacon timers after beacon receive\n");
 		}
 	}
 }
 
 static void
-ath5k_update_beacon_rssi(struct ath5k_softc *sc, struct sk_buff *skb, int rssi)
+ath5k_update_beacon_rssi(struct ath5k_hw *ah, struct sk_buff *skb, int rssi)
 {
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
-	struct ath5k_hw *ah = sc->ah;
 	struct ath_common *common = ath5k_hw_common(ah);
 
 	/* only beacons from our BSSID */
@@ -1324,7 +1314,7 @@ static int ath5k_remove_padding(struct sk_buff *skb)
 }
 
 static void
-ath5k_receive_frame(struct ath5k_softc *sc, struct sk_buff *skb,
+ath5k_receive_frame(struct ath5k_hw *ah, struct sk_buff *skb,
 		    struct ath5k_rx_status *rs)
 {
 	struct ieee80211_rx_status *rxs;
@@ -1357,37 +1347,37 @@ ath5k_receive_frame(struct ath5k_softc *sc, struct sk_buff *skb,
 	 * impossible to comply to that. This affects IBSS merge only
 	 * right now, so it's not too bad...
 	 */
-	rxs->mactime = ath5k_extend_tsf(sc->ah, rs->rs_tstamp);
+	rxs->mactime = ath5k_extend_tsf(ah, rs->rs_tstamp);
 	rxs->flag |= RX_FLAG_MACTIME_MPDU;
 
-	rxs->freq = sc->curchan->center_freq;
-	rxs->band = sc->curchan->band;
+	rxs->freq = ah->curchan->center_freq;
+	rxs->band = ah->curchan->band;
 
-	rxs->signal = sc->ah->ah_noise_floor + rs->rs_rssi;
+	rxs->signal = ah->ah_noise_floor + rs->rs_rssi;
 
 	rxs->antenna = rs->rs_antenna;
 
 	if (rs->rs_antenna > 0 && rs->rs_antenna < 5)
-		sc->stats.antenna_rx[rs->rs_antenna]++;
+		ah->stats.antenna_rx[rs->rs_antenna]++;
 	else
-		sc->stats.antenna_rx[0]++; /* invalid */
+		ah->stats.antenna_rx[0]++; /* invalid */
 
-	rxs->rate_idx = ath5k_hw_to_driver_rix(sc, rs->rs_rate);
-	rxs->flag |= ath5k_rx_decrypted(sc, skb, rs);
+	rxs->rate_idx = ath5k_hw_to_driver_rix(ah, rs->rs_rate);
+	rxs->flag |= ath5k_rx_decrypted(ah, skb, rs);
 
 	if (rxs->rate_idx >= 0 && rs->rs_rate ==
-	    sc->sbands[sc->curchan->band].bitrates[rxs->rate_idx].hw_value_short)
+	    ah->sbands[ah->curchan->band].bitrates[rxs->rate_idx].hw_value_short)
 		rxs->flag |= RX_FLAG_SHORTPRE;
 
-	trace_ath5k_rx(sc, skb);
+	trace_ath5k_rx(ah, skb);
 
-	ath5k_update_beacon_rssi(sc, skb, rs->rs_rssi);
+	ath5k_update_beacon_rssi(ah, skb, rs->rs_rssi);
 
 	/* check beacons in IBSS mode */
-	if (sc->opmode == NL80211_IFTYPE_ADHOC)
-		ath5k_check_ibss_tsf(sc, skb, rxs);
+	if (ah->opmode == NL80211_IFTYPE_ADHOC)
+		ath5k_check_ibss_tsf(ah, skb, rxs);
 
-	ieee80211_rx(sc->hw, skb);
+	ieee80211_rx(ah->hw, skb);
 }
 
 /** ath5k_frame_receive_ok() - Do we want to receive this frame or not?
@@ -1396,20 +1386,20 @@ ath5k_receive_frame(struct ath5k_softc *sc, struct sk_buff *skb,
  * statistics. Return true if we want this frame, false if not.
  */
 static bool
-ath5k_receive_frame_ok(struct ath5k_softc *sc, struct ath5k_rx_status *rs)
+ath5k_receive_frame_ok(struct ath5k_hw *ah, struct ath5k_rx_status *rs)
 {
-	sc->stats.rx_all_count++;
-	sc->stats.rx_bytes_count += rs->rs_datalen;
+	ah->stats.rx_all_count++;
+	ah->stats.rx_bytes_count += rs->rs_datalen;
 
 	if (unlikely(rs->rs_status)) {
 		if (rs->rs_status & AR5K_RXERR_CRC)
-			sc->stats.rxerr_crc++;
+			ah->stats.rxerr_crc++;
 		if (rs->rs_status & AR5K_RXERR_FIFO)
-			sc->stats.rxerr_fifo++;
+			ah->stats.rxerr_fifo++;
 		if (rs->rs_status & AR5K_RXERR_PHY) {
-			sc->stats.rxerr_phy++;
+			ah->stats.rxerr_phy++;
 			if (rs->rs_phyerr > 0 && rs->rs_phyerr < 32)
-				sc->stats.rxerr_phy_code[rs->rs_phyerr]++;
+				ah->stats.rxerr_phy_code[rs->rs_phyerr]++;
 			return false;
 		}
 		if (rs->rs_status & AR5K_RXERR_DECRYPT) {
@@ -1423,13 +1413,13 @@ ath5k_receive_frame_ok(struct ath5k_softc *sc, struct ath5k_rx_status *rs)
 			 *
 			 * XXX do key cache faulting
 			 */
-			sc->stats.rxerr_decrypt++;
+			ah->stats.rxerr_decrypt++;
 			if (rs->rs_keyix == AR5K_RXKEYIX_INVALID &&
 			    !(rs->rs_status & AR5K_RXERR_CRC))
 				return true;
 		}
 		if (rs->rs_status & AR5K_RXERR_MIC) {
-			sc->stats.rxerr_mic++;
+			ah->stats.rxerr_mic++;
 			return true;
 		}
 
@@ -1439,26 +1429,26 @@ ath5k_receive_frame_ok(struct ath5k_softc *sc, struct ath5k_rx_status *rs)
 	}
 
 	if (unlikely(rs->rs_more)) {
-		sc->stats.rxerr_jumbo++;
+		ah->stats.rxerr_jumbo++;
 		return false;
 	}
 	return true;
 }
 
 static void
-ath5k_set_current_imask(struct ath5k_softc *sc)
+ath5k_set_current_imask(struct ath5k_hw *ah)
 {
 	enum ath5k_int imask;
 	unsigned long flags;
 
-	spin_lock_irqsave(&sc->irqlock, flags);
-	imask = sc->imask;
-	if (sc->rx_pending)
+	spin_lock_irqsave(&ah->irqlock, flags);
+	imask = ah->imask;
+	if (ah->rx_pending)
 		imask &= ~AR5K_INT_RX_ALL;
-	if (sc->tx_pending)
+	if (ah->tx_pending)
 		imask &= ~AR5K_INT_TX_ALL;
-	ath5k_hw_set_imr(sc->ah, imask);
-	spin_unlock_irqrestore(&sc->irqlock, flags);
+	ath5k_hw_set_imr(ah, imask);
+	spin_unlock_irqrestore(&ah->irqlock, flags);
 }
 
 static void
@@ -1467,39 +1457,38 @@ ath5k_tasklet_rx(unsigned long data)
 	struct ath5k_rx_status rs = {};
 	struct sk_buff *skb, *next_skb;
 	dma_addr_t next_skb_addr;
-	struct ath5k_softc *sc = (void *)data;
-	struct ath5k_hw *ah = sc->ah;
+	struct ath5k_hw *ah = (void *)data;
 	struct ath_common *common = ath5k_hw_common(ah);
 	struct ath5k_buf *bf;
 	struct ath5k_desc *ds;
 	int ret;
 
-	spin_lock(&sc->rxbuflock);
-	if (list_empty(&sc->rxbuf)) {
-		ATH5K_WARN(sc, "empty rx buf pool\n");
+	spin_lock(&ah->rxbuflock);
+	if (list_empty(&ah->rxbuf)) {
+		ATH5K_WARN(ah, "empty rx buf pool\n");
 		goto unlock;
 	}
 	do {
-		bf = list_first_entry(&sc->rxbuf, struct ath5k_buf, list);
+		bf = list_first_entry(&ah->rxbuf, struct ath5k_buf, list);
 		BUG_ON(bf->skb == NULL);
 		skb = bf->skb;
 		ds = bf->desc;
 
 		/* bail if HW is still using self-linked descriptor */
-		if (ath5k_hw_get_rxdp(sc->ah) == bf->daddr)
+		if (ath5k_hw_get_rxdp(ah) == bf->daddr)
 			break;
 
-		ret = sc->ah->ah_proc_rx_desc(sc->ah, ds, &rs);
+		ret = ah->ah_proc_rx_desc(ah, ds, &rs);
 		if (unlikely(ret == -EINPROGRESS))
 			break;
 		else if (unlikely(ret)) {
-			ATH5K_ERR(sc, "error in processing rx descriptor\n");
-			sc->stats.rxerr_proc++;
+			ATH5K_ERR(ah, "error in processing rx descriptor\n");
+			ah->stats.rxerr_proc++;
 			break;
 		}
 
-		if (ath5k_receive_frame_ok(sc, &rs)) {
-			next_skb = ath5k_rx_skb_alloc(sc, &next_skb_addr);
+		if (ath5k_receive_frame_ok(ah, &rs)) {
+			next_skb = ath5k_rx_skb_alloc(ah, &next_skb_addr);
 
 			/*
 			 * If we can't replace bf->skb with a new skb under
@@ -1508,24 +1497,24 @@ ath5k_tasklet_rx(unsigned long data)
 			if (!next_skb)
 				goto next;
 
-			dma_unmap_single(sc->dev, bf->skbaddr,
+			dma_u