8 files changed, 118 insertions, 84 deletions

diff --git a/drivers/net/wireless/p54/Kconfig b/drivers/net/wireless/p54/Kconfig
index b45d6a4ed1e8..b0342a520bf1 100644
--- a/drivers/net/wireless/p54/Kconfig
+++ b/drivers/net/wireless/p54/Kconfig
@@ -1,6 +1,6 @@
 config P54_COMMON
 	tristate "Softmac Prism54 support"
-	depends on MAC80211 && WLAN_80211 && EXPERIMENTAL
+	depends on MAC80211 && EXPERIMENTAL
 	select FW_LOADER
 	---help---
 	  This is common code for isl38xx/stlc45xx based modules.
diff --git a/drivers/net/wireless/p54/eeprom.c b/drivers/net/wireless/p54/eeprom.c
index 0efe67deedee..8e3818f6832e 100644
--- a/drivers/net/wireless/p54/eeprom.c
+++ b/drivers/net/wireless/p54/eeprom.c
@@ -126,7 +126,7 @@ static int p54_generate_band(struct ieee80211_hw *dev,
 	int ret = -ENOMEM;
 
 	if ((!list->entries) || (!list->band_channel_num[band]))
-		return 0;
+		return -EINVAL;
 
 	tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
 	if (!tmp)
@@ -158,6 +158,7 @@ static int p54_generate_band(struct ieee80211_hw *dev,
 			       (list->channels[i].data & CHAN_HAS_CURVE ? "" :
 				" [curve data]"),
 			       list->channels[i].index, list->channels[i].freq);
+			continue;
 		}
 
 		tmp->channels[j].band = list->channels[i].band;
@@ -165,7 +166,16 @@ static int p54_generate_band(struct ieee80211_hw *dev,
 		j++;
 	}
 
-	tmp->n_channels = list->band_channel_num[band];
+	if (j == 0) {
+		printk(KERN_ERR "%s: Disabling totally damaged %s band.\n",
+		       wiphy_name(dev->wiphy), (band == IEEE80211_BAND_2GHZ) ?
+		       "2 GHz" : "5 GHz");
+
+		ret = -ENODATA;
+		goto err_out;
+	}
+
+	tmp->n_channels = j;
 	old = priv->band_table[band];
 	priv->band_table[band] = tmp;
 	if (old) {
@@ -228,13 +238,13 @@ static int p54_generate_channel_lists(struct ieee80211_hw *dev)
 	struct p54_common *priv = dev->priv;
 	struct p54_channel_list *list;
 	unsigned int i, j, max_channel_num;
-	int ret = -ENOMEM;
+	int ret = 0;
 	u16 freq;
 
 	if ((priv->iq_autocal_len != priv->curve_data->entries) ||
 	    (priv->iq_autocal_len != priv->output_limit->entries))
-		printk(KERN_ERR "%s: EEPROM is damaged... you may not be able"
-				"to use all channels with this device.\n",
+		printk(KERN_ERR "%s: Unsupported or damaged EEPROM detected. "
+				"You may not be able to use all channels.\n",
 				wiphy_name(dev->wiphy));
 
 	max_channel_num = max_t(unsigned int, priv->output_limit->entries,
@@ -243,8 +253,10 @@ static int p54_generate_channel_lists(struct ieee80211_hw *dev)
 				priv->curve_data->entries);
 
 	list = kzalloc(sizeof(*list), GFP_KERNEL);
-	if (!list)
+	if (!list) {
+		ret = -ENOMEM;
 		goto free;
+	}
 
 	list->max_entries = max_channel_num;
 	list->channels = kzalloc(sizeof(struct p54_channel_entry) *
@@ -282,13 +294,8 @@ static int p54_generate_channel_lists(struct ieee80211_hw *dev)
 	     p54_compare_channels, NULL);
 
 	for (i = 0, j = 0; i < IEEE80211_NUM_BANDS; i++) {
-		if (list->band_channel_num[i]) {
-			ret = p54_generate_band(dev, list, i);
-			if (ret)
-				goto free;
-
+		if (p54_generate_band(dev, list, i) == 0)
 			j++;
-		}
 	}
 	if (j == 0) {
 		/* no useable band available. */
diff --git a/drivers/net/wireless/p54/main.c b/drivers/net/wireless/p54/main.c
index 4d486bf9f725..4f752a21495f 100644
--- a/drivers/net/wireless/p54/main.c
+++ b/drivers/net/wireless/p54/main.c
@@ -33,21 +33,29 @@ MODULE_DESCRIPTION("Softmac Prism54 common code");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("prism54common");
 
+static int p54_sta_add_remove(struct ieee80211_hw *hw,
+			      struct ieee80211_vif *vif,
+			      struct ieee80211_sta *sta)
+{
+	struct p54_common *priv = hw->priv;
+
+	/*
+	 * Notify the firmware that we don't want or we don't
+	 * need to buffer frames for this station anymore.
+	 */
+
+	p54_sta_unlock(priv, sta->addr);
+
+	return 0;
+}
+
 static void p54_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
 			      enum sta_notify_cmd notify_cmd,
 			      struct ieee80211_sta *sta)
 {
 	struct p54_common *priv = dev->priv;
-	switch (notify_cmd) {
-	case STA_NOTIFY_ADD:
-	case STA_NOTIFY_REMOVE:
-		/*
-		 * Notify the firmware that we don't want or we don't
-		 * need to buffer frames for this station anymore.
-		 */
 
-		p54_sta_unlock(priv, sta->addr);
-		break;
+	switch (notify_cmd) {
 	case STA_NOTIFY_AWAKE:
 		/* update the firmware's filter table */
 		p54_sta_unlock(priv, sta->addr);
@@ -216,7 +224,7 @@ static void p54_stop(struct ieee80211_hw *dev)
 }
 
 static int p54_add_interface(struct ieee80211_hw *dev,
-			     struct ieee80211_if_init_conf *conf)
+			     struct ieee80211_vif *vif)
 {
 	struct p54_common *priv = dev->priv;
 
@@ -226,28 +234,28 @@ static int p54_add_interface(struct ieee80211_hw *dev,
 		return -EOPNOTSUPP;
 	}
 
-	priv->vif = conf->vif;
+	priv->vif = vif;
 
-	switch (conf->type) {
+	switch (vif->type) {
 	case NL80211_IFTYPE_STATION:
 	case NL80211_IFTYPE_ADHOC:
 	case NL80211_IFTYPE_AP:
 	case NL80211_IFTYPE_MESH_POINT:
-		priv->mode = conf->type;
+		priv->mode = vif->type;
 		break;
 	default:
 		mutex_unlock(&priv->conf_mutex);
 		return -EOPNOTSUPP;
 	}
 
-	memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
+	memcpy(priv->mac_addr, vif->addr, ETH_ALEN);
 	p54_setup_mac(priv);
 	mutex_unlock(&priv->conf_mutex);
 	return 0;
 }
 
 static void p54_remove_interface(struct ieee80211_hw *dev,
-				 struct ieee80211_if_init_conf *conf)
+				 struct ieee80211_vif *vif)
 {
 	struct p54_common *priv = dev->priv;
 
@@ -358,16 +366,6 @@ static int p54_get_stats(struct ieee80211_hw *dev,
 	return 0;
 }
 
-static int p54_get_tx_stats(struct ieee80211_hw *dev,
-			    struct ieee80211_tx_queue_stats *stats)
-{
-	struct p54_common *priv = dev->priv;
-
-	memcpy(stats, &priv->tx_stats[P54_QUEUE_DATA],
-	       sizeof(stats[0]) * dev->queues);
-	return 0;
-}
-
 static void p54_bss_info_changed(struct ieee80211_hw *dev,
 				 struct ieee80211_vif *vif,
 				 struct ieee80211_bss_conf *info,
@@ -516,13 +514,14 @@ static const struct ieee80211_ops p54_ops = {
 	.remove_interface	= p54_remove_interface,
 	.set_tim		= p54_set_tim,
 	.sta_notify		= p54_sta_notify,
+	.sta_add		= p54_sta_add_remove,
+	.sta_remove		= p54_sta_add_remove,
 	.set_key		= p54_set_key,
 	.config			= p54_config,
 	.bss_info_changed	= p54_bss_info_changed,
 	.configure_filter	= p54_configure_filter,
 	.conf_tx		= p54_conf_tx,
 	.get_stats		= p54_get_stats,
-	.get_tx_stats		= p54_get_tx_stats
 };
 
 struct ieee80211_hw *p54_init_common(size_t priv_data_len)
@@ -579,7 +578,7 @@ struct ieee80211_hw *p54_init_common(size_t priv_data_len)
 	 * For now, disable PS by default because it affects
 	 * link stability significantly.
 	 */
-	dev->wiphy->ps_default = false;
+	dev->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 
 	mutex_init(&priv->conf_mutex);
 	mutex_init(&priv->eeprom_mutex);
diff --git a/drivers/net/wireless/p54/p54.h b/drivers/net/wireless/p54/p54.h
index 1afc39410e85..43a3b2ead81a 100644
--- a/drivers/net/wireless/p54/p54.h
+++ b/drivers/net/wireless/p54/p54.h
@@ -157,6 +157,12 @@ struct p54_led_dev {
 
 #endif /* CONFIG_P54_LEDS */
 
+struct p54_tx_queue_stats {
+	unsigned int len;
+	unsigned int limit;
+	unsigned int count;
+};
+
 struct p54_common {
 	struct ieee80211_hw *hw;
 	struct ieee80211_vif *vif;
@@ -183,7 +189,7 @@ struct p54_common {
 	/* (e)DCF / QOS state */
 	bool use_short_slot;
 	spinlock_t tx_stats_lock;
-	struct ieee80211_tx_queue_stats tx_stats[8];
+	struct p54_tx_queue_stats tx_stats[8];
 	struct p54_edcf_queue_param qos_params[8];
 
 	/* Radio data */
diff --git a/drivers/net/wireless/p54/p54pci.c b/drivers/net/wireless/p54/p54pci.c
index d348c265e867..ed4bdffdd63e 100644
--- a/drivers/net/wireless/p54/p54pci.c
+++ b/drivers/net/wireless/p54/p54pci.c
@@ -31,7 +31,7 @@ MODULE_LICENSE("GPL");
 MODULE_ALIAS("prism54pci");
 MODULE_FIRMWARE("isl3886pci");
 
-static struct pci_device_id p54p_table[] __devinitdata = {
+static DEFINE_PCI_DEVICE_TABLE(p54p_table) = {
 	/* Intersil PRISM Duette/Prism GT Wireless LAN adapter */
 	{ PCI_DEVICE(0x1260, 0x3890) },
 	/* 3COM 3CRWE154G72 Wireless LAN adapter */
@@ -157,6 +157,14 @@ static void p54p_refill_rx_ring(struct ieee80211_hw *dev,
 						 skb_tail_pointer(skb),
 						 priv->common.rx_mtu + 32,
 						 PCI_DMA_FROMDEVICE);
+
+			if (pci_dma_mapping_error(priv->pdev, mapping)) {
+				dev_kfree_skb_any(skb);
+				dev_err(&priv->pdev->dev,
+					"RX DMA Mapping error\n");
+				break;
+			}
+
 			desc->host_addr = cpu_to_le32(mapping);
 			desc->device_addr = 0;	// FIXME: necessary?
 			desc->len = cpu_to_le16(priv->common.rx_mtu + 32);
@@ -197,6 +205,14 @@ static void p54p_check_rx_ring(struct ieee80211_hw *dev, u32 *index,
 			i %= ring_limit;
 			continue;
 		}
+
+		if (unlikely(len > priv->common.rx_mtu)) {
+			if (net_ratelimit())
+				dev_err(&priv->pdev->dev, "rx'd frame size "
+					"exceeds length threshold.\n");
+
+			len = priv->common.rx_mtu;
+		}
 		skb_put(skb, len);
 
 		if (p54_rx(dev, skb)) {
@@ -218,14 +234,14 @@ static void p54p_check_rx_ring(struct ieee80211_hw *dev, u32 *index,
 	p54p_refill_rx_ring(dev, ring_index, ring, ring_limit, rx_buf);
 }
 
-/* caller must hold priv->lock */
 static void p54p_check_tx_ring(struct ieee80211_hw *dev, u32 *index,
 	int ring_index, struct p54p_desc *ring, u32 ring_limit,
-	void **tx_buf)
+	struct sk_buff **tx_buf)
 {
 	struct p54p_priv *priv = dev->priv;
 	struct p54p_ring_control *ring_control = priv->ring_control;
 	struct p54p_desc *desc;
+	struct sk_buff *skb;
 	u32 idx, i;
 
 	i = (*index) % ring_limit;
@@ -234,9 +250,8 @@ static void p54p_check_tx_ring(struct ieee80211_hw *dev, u32 *index,
 
 	while (i != idx) {
 		desc = &ring[i];
-		if (tx_buf[i])
-			if (FREE_AFTER_TX((struct sk_buff *) tx_buf[i]))
-				p54_free_skb(dev, tx_buf[i]);
+
+		skb = tx_buf[i];
 		tx_buf[i] = NULL;
 
 		pci_unmap_single(priv->pdev, le32_to_cpu(desc->host_addr),
@@ -247,17 +262,28 @@ static void p54p_check_tx_ring(struct ieee80211_hw *dev, u32 *index,
 		desc->len = 0;
 		desc->flags = 0;
 
+		if (skb && FREE_AFTER_TX(skb))
+			p54_free_skb(dev, skb);
+
 		i++;
 		i %= ring_limit;
 	}
 }
 
-static void p54p_rx_tasklet(unsigned long dev_id)
+static void p54p_tasklet(unsigned long dev_id)
 {
 	struct ieee80211_hw *dev = (struct ieee80211_hw *)dev_id;
 	struct p54p_priv *priv = dev->priv;
 	struct p54p_ring_control *ring_control = priv->ring_control;
 
+	p54p_check_tx_ring(dev, &priv->tx_idx_mgmt, 3, ring_control->tx_mgmt,
+			   ARRAY_SIZE(ring_control->tx_mgmt),
+			   priv->tx_buf_mgmt);
+
+	p54p_check_tx_ring(dev, &priv->tx_idx_data, 1, ring_control->tx_data,
+			   ARRAY_SIZE(ring_control->tx_data),
+			   priv->tx_buf_data);
+
 	p54p_check_rx_ring(dev, &priv->rx_idx_mgmt, 2, ring_control->rx_mgmt,
 		ARRAY_SIZE(ring_control->rx_mgmt), priv->rx_buf_mgmt);
 
@@ -272,59 +298,49 @@ static irqreturn_t p54p_interrupt(int irq, void *dev_id)
 {
 	struct ieee80211_hw *dev = dev_id;
 	struct p54p_priv *priv = dev->priv;
-	struct p54p_ring_control *ring_control = priv->ring_control;
 	__le32 reg;
 
-	spin_lock(&priv->lock);
 	reg = P54P_READ(int_ident);
 	if (unlikely(reg == cpu_to_le32(0xFFFFFFFF))) {
-		spin_unlock(&priv->lock);
-		return IRQ_HANDLED;
+		goto out;
 	}
-
 	P54P_WRITE(int_ack, reg);
 
 	reg &= P54P_READ(int_enable);
 
-	if (reg & cpu_to_le32(ISL38XX_INT_IDENT_UPDATE)) {
-		p54p_check_tx_ring(dev, &priv->tx_idx_mgmt,
-				   3, ring_control->tx_mgmt,
-				   ARRAY_SIZE(ring_control->tx_mgmt),
-				   priv->tx_buf_mgmt);
-
-		p54p_check_tx_ring(dev, &priv->tx_idx_data,
-				   1, ring_control->tx_data,
-				   ARRAY_SIZE(ring_control->tx_data),
-				   priv->tx_buf_data);
-
-		tasklet_schedule(&priv->rx_tasklet);
-
-	} else if (reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT))
+	if (reg & cpu_to_le32(ISL38XX_INT_IDENT_UPDATE))
+		tasklet_schedule(&priv->tasklet);
+	else if (reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT))
 		complete(&priv->boot_comp);
 
-	spin_unlock(&priv->lock);
-
+out:
 	return reg ? IRQ_HANDLED : IRQ_NONE;
 }
 
 static void p54p_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 {
+	unsigned long flags;
 	struct p54p_priv *priv = dev->priv;
 	struct p54p_ring_control *ring_control = priv->ring_control;
-	unsigned long flags;
 	struct p54p_desc *desc;
 	dma_addr_t mapping;
 	u32 device_idx, idx, i;
 
 	spin_lock_irqsave(&priv->lock, flags);
-
 	device_idx = le32_to_cpu(ring_control->device_idx[1]);
 	idx = le32_to_cpu(ring_control->host_idx[1]);
 	i = idx % ARRAY_SIZE(ring_control->tx_data);
 
-	priv->tx_buf_data[i] = skb;
 	mapping = pci_map_single(priv->pdev, skb->data, skb->len,
 				 PCI_DMA_TODEVICE);
+	if (pci_dma_mapping_error(priv->pdev, mapping)) {
+		spin_unlock_irqrestore(&priv->lock, flags);
+		p54_free_skb(dev, skb);
+		dev_err(&priv->pdev->dev, "TX DMA mapping error\n");
+		return ;
+	}
+	priv->tx_buf_data[i] = skb;
+
 	desc = &ring_control->tx_data[i];
 	desc->host_addr = cpu_to_le32(mapping);
 	desc->device_addr = ((struct p54_hdr *)skb->data)->req_id;
@@ -346,14 +362,14 @@ static void p54p_stop(struct ieee80211_hw *dev)
 	unsigned int i;
 	struct p54p_desc *desc;
 
-	tasklet_kill(&priv->rx_tasklet);
-
 	P54P_WRITE(int_enable, cpu_to_le32(0));
 	P54P_READ(int_enable);
 	udelay(10);
 
 	free_irq(priv->pdev->irq, dev);
 
+	tasklet_kill(&priv->tasklet);
+
 	P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET));
 
 	for (i = 0; i < ARRAY_SIZE(priv->rx_buf_data); i++) {
@@ -411,7 +427,7 @@ static int p54p_open(struct ieee80211_hw *dev)
 	int err;
 
 	init_completion(&priv->boot_comp);
-	err = request_irq(priv->pdev->irq, &p54p_interrupt,
+	err = request_irq(priv->pdev->irq, p54p_interrupt,
 			  IRQF_SHARED, "p54pci", dev);
 	if (err) {
 		dev_err(&priv->pdev->dev, "failed to register IRQ handler\n");
@@ -537,7 +553,7 @@ static int __devinit p54p_probe(struct pci_dev *pdev,
 	priv->common.tx = p54p_tx;
 
 	spin_lock_init(&priv->lock);
-	tasklet_init(&priv->rx_tasklet, p54p_rx_tasklet, (unsigned long)dev);
+	tasklet_init(&priv->tasklet, p54p_tasklet, (unsigned long)dev);
 
 	err = request_firmware(&priv->firmware, "isl3886pci",
 			       &priv->pdev->dev);
diff --git a/drivers/net/wireless/p54/p54pci.h b/drivers/net/wireless/p54/p54pci.h
index fbb683953fb2..2feead617a3b 100644
--- a/drivers/net/wireless/p54/p54pci.h
+++ b/drivers/net/wireless/p54/p54pci.h
@@ -92,7 +92,7 @@ struct p54p_priv {
 	struct p54_common common;
 	struct pci_dev *pdev;
 	struct p54p_csr __iomem *map;
-	struct tasklet_struct rx_tasklet;
+	struct tasklet_struct tasklet;
 	const struct firmware *firmware;
 	spinlock_t lock;
 	struct p54p_ring_control *ring_control;
@@ -101,8 +101,8 @@ struct p54p_priv {
 	u32 rx_idx_mgmt, tx_idx_mgmt;
 	struct sk_buff *rx_buf_data[8];
 	struct sk_buff *rx_buf_mgmt[4];
-	void *tx_buf_data[32];
-	void *tx_buf_mgmt[4];
+	struct sk_buff *tx_buf_data[32];
+	struct sk_buff *tx_buf_mgmt[4];
 	struct completion boot_comp;
 };
 
diff --git a/drivers/net/wireless/p54/p54usb.c b/drivers/net/wireless/p54/p54usb.c
index 17e199546eeb..b3c4fbd80d8d 100644
--- a/drivers/net/wireless/p54/p54usb.c
+++ b/drivers/net/wireless/p54/p54usb.c
@@ -36,6 +36,7 @@ static struct usb_device_id p54u_table[] __devinitdata = {
 	/* Version 1 devices (pci chip + net2280) */
 	{USB_DEVICE(0x0506, 0x0a11)},	/* 3COM 3CRWE254G72 */
 	{USB_DEVICE(0x0707, 0xee06)},	/* SMC 2862W-G */
+	{USB_DEVICE(0x07aa, 0x001c)},	/* Corega CG-WLUSB2GT */
 	{USB_DEVICE(0x083a, 0x4501)},	/* Accton 802.11g WN4501 USB */
 	{USB_DEVICE(0x083a, 0x4502)},	/* Siemens Gigaset USB Adapter */
 	{USB_DEVICE(0x083a, 0x5501)},	/* Phillips CPWUA054 */
@@ -60,6 +61,7 @@ static struct usb_device_id p54u_table[] __devinitdata = {
 	{USB_DEVICE(0x06b9, 0x0121)},	/* Thomson SpeedTouch 121g */
 	{USB_DEVICE(0x0707, 0xee13)},   /* SMC 2862W-G version 2 */
 	{USB_DEVICE(0x083a, 0x4521)},   /* Siemens Gigaset USB Adapter 54 version 2 */
+	{USB_DEVICE(0x083a, 0xf503)},	/* Accton FD7050E ver 1010ec  */
 	{USB_DEVICE(0x0846, 0x4240)},	/* Netgear WG111 (v2) */
 	{USB_DEVICE(0x0915, 0x2000)},	/* Cohiba Proto board */
 	{USB_DEVICE(0x0915, 0x2002)},	/* Cohiba Proto board */
@@ -426,12 +428,16 @@ static const char p54u_romboot_3887[] = "~~~~";
 static int p54u_firmware_reset_3887(struct ieee80211_hw *dev)
 {
 	struct p54u_priv *priv = dev->priv;
-	u8 buf[4];
+	u8 *buf;
 	int ret;
 
-	memcpy(&buf, p54u_romboot_3887, sizeof(buf));
+	buf = kmalloc(4, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+	memcpy(buf, p54u_romboot_3887, 4);
 	ret = p54u_bulk_msg(priv, P54U_PIPE_DATA,
-			    buf, sizeof(buf));
+			    buf, 4);
+	kfree(buf);
 	if (ret)
 		dev_err(&priv->udev->dev, "(p54usb) unable to jump to "
 			"boot ROM (%d)!\n", ret);
diff --git a/drivers/net/wireless/p54/txrx.c b/drivers/net/wireless/p54/txrx.c
index b6dda2b27fb5..66057999a93c 100644
--- a/drivers/net/wireless/p54/txrx.c
+++ b/drivers/net/wireless/p54/txrx.c
@@ -183,10 +183,10 @@ static int p54_tx_qos_accounting_alloc(struct p54_common *priv,
 				       struct sk_buff *skb,
 				       const u16 p54_queue)
 {
-	struct ieee80211_tx_queue_stats *queue;
+	struct p54_tx_queue_stats *queue;
 	unsigned long flags;
 
-	if (WARN_ON(p54_queue > P54_QUEUE_NUM))
+	if (WARN_ON(p54_queue >= P54_QUEUE_NUM))
 		return -EINVAL;
 
 	queue = &priv->tx_stats[p54_queue];