Merge git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next

John W. Linville says:

====================
pull request: wireless-next 2014-07-03

Please pull this first batch of wireless updates intended for the
3.17 stream...

For the mac80211 bits, Johannes says:

"The biggest thing here is probably Arik's TDLS rework, beyond that we
have smaller improvements and features like David's scanning IE thing,
Luca's queue work, some CSA work, etc. Also your PID rate control
removal, of course."

For the iwlwifi bits, Emmanuel says:

"I have here a whole bunch of various things. Andy contributes
better debug prints for dvm specific flows and a module parameter to
completely disable power save for dvm. Andrei is sharing the premises
of his work on CSA - more to come. Eran and Liad keep on working
on the new devices. I have the regular amount of BT Coex stuff and
I continue to work on the firmware error report system adding more
debug capabilities. More to come on that subject too."

On top of that, there are some cleanups to the new rsi driver, some
continuing improvements to the rtl818x drivers, and the usual bundles
of updates to ath9k, b43, mwifiex, wil6210, and a few other bits here
and there.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 68 insertions, 61 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index c17fcf272728..893c9d5f3d6f 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -947,6 +947,40 @@ static inline u8 rt2800_get_beacon_offset(struct rt2x00_dev *rt2x00dev,
 	return BEACON_BASE_TO_OFFSET(rt2800_hw_beacon_base(rt2x00dev, index));
 }
 
+static void rt2800_update_beacons_setup(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_queue *queue = rt2x00dev->bcn;
+	struct queue_entry *entry;
+	int i, bcn_num = 0;
+	u64 off, reg = 0;
+	u32 bssid_dw1;
+
+	/*
+	 * Setup offsets of all active beacons in BCN_OFFSET{0,1} registers.
+	 */
+	for (i = 0; i < queue->limit; i++) {
+		entry = &queue->entries[i];
+		if (!test_bit(ENTRY_BCN_ENABLED, &entry->flags))
+			continue;
+		off = rt2800_get_beacon_offset(rt2x00dev, entry->entry_idx);
+		reg |= off << (8 * bcn_num);
+		bcn_num++;
+	}
+
+	WARN_ON_ONCE(bcn_num != rt2x00dev->intf_beaconing);
+
+	rt2800_register_write(rt2x00dev, BCN_OFFSET0, (u32) reg);
+	rt2800_register_write(rt2x00dev, BCN_OFFSET1, (u32) (reg >> 32));
+
+	/*
+	 * H/W sends up to MAC_BSSID_DW1_BSS_BCN_NUM + 1 consecutive beacons.
+	 */
+	rt2800_register_read(rt2x00dev, MAC_BSSID_DW1, &bssid_dw1);
+	rt2x00_set_field32(&bssid_dw1, MAC_BSSID_DW1_BSS_BCN_NUM,
+			   bcn_num > 0 ? bcn_num - 1 : 0);
+	rt2800_register_write(rt2x00dev, MAC_BSSID_DW1, bssid_dw1);
+}
+
 void rt2800_write_beacon(struct queue_entry *entry, struct txentry_desc *txdesc)
 {
 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
@@ -1003,6 +1037,12 @@ void rt2800_write_beacon(struct queue_entry *entry, struct txentry_desc *txdesc)
 
 	rt2800_register_multiwrite(rt2x00dev, beacon_base, entry->skb->data,
 				   entry->skb->len + padding_len);
+	__set_bit(ENTRY_BCN_ENABLED, &entry->flags);
+
+	/*
+	 * Change global beacons settings.
+	 */
+	rt2800_update_beacons_setup(rt2x00dev);
 
 	/*
 	 * Restore beaconing state.
@@ -1053,8 +1093,13 @@ void rt2800_clear_beacon(struct queue_entry *entry)
 	 * Clear beacon.
 	 */
 	rt2800_clear_beacon_register(rt2x00dev, entry->entry_idx);
+	__clear_bit(ENTRY_BCN_ENABLED, &entry->flags);
 
 	/*
+	 * Change global beacons settings.
+	 */
+	rt2800_update_beacons_setup(rt2x00dev);
+	/*
 	 * Restore beaconing state.
 	 */
 	rt2800_register_write(rt2x00dev, BCN_TIME_CFG, orig_reg);
@@ -1556,7 +1601,7 @@ void rt2800_config_intf(struct rt2x00_dev *rt2x00dev, struct rt2x00_intf *intf,
 		if (!is_zero_ether_addr((const u8 *)conf->bssid)) {
 			reg = le32_to_cpu(conf->bssid[1]);
 			rt2x00_set_field32(&reg, MAC_BSSID_DW1_BSS_ID_MASK, 3);
-			rt2x00_set_field32(&reg, MAC_BSSID_DW1_BSS_BCN_NUM, 7);
+			rt2x00_set_field32(&reg, MAC_BSSID_DW1_BSS_BCN_NUM, 0);
 			conf->bssid[1] = cpu_to_le32(reg);
 		}
 
@@ -4517,28 +4562,6 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
 	if (ret)
 		return ret;
 
-	rt2800_register_read(rt2x00dev, BCN_OFFSET0, &reg);
-	rt2x00_set_field32(&reg, BCN_OFFSET0_BCN0,
-			   rt2800_get_beacon_offset(rt2x00dev, 0));
-	rt2x00_set_field32(&reg, BCN_OFFSET0_BCN1,
-			   rt2800_get_beacon_offset(rt2x00dev, 1));
-	rt2x00_set_field32(&reg, BCN_OFFSET0_BCN2,
-			   rt2800_get_beacon_offset(rt2x00dev, 2));
-	rt2x00_set_field32(&reg, BCN_OFFSET0_BCN3,
-			   rt2800_get_beacon_offset(rt2x00dev, 3));
-	rt2800_register_write(rt2x00dev, BCN_OFFSET0, reg);
-
-	rt2800_register_read(rt2x00dev, BCN_OFFSET1, &reg);
-	rt2x00_set_field32(&reg, BCN_OFFSET1_BCN4,
-			   rt2800_get_beacon_offset(rt2x00dev, 4));
-	rt2x00_set_field32(&reg, BCN_OFFSET1_BCN5,
-			   rt2800_get_beacon_offset(rt2x00dev, 5));
-	rt2x00_set_field32(&reg, BCN_OFFSET1_BCN6,
-			   rt2800_get_beacon_offset(rt2x00dev, 6));
-	rt2x00_set_field32(&reg, BCN_OFFSET1_BCN7,
-			   rt2800_get_beacon_offset(rt2x00dev, 7));
-	rt2800_register_write(rt2x00dev, BCN_OFFSET1, reg);
-
 	rt2800_register_write(rt2x00dev, LEGACY_BASIC_RATE, 0x0000013f);
 	rt2800_register_write(rt2x00dev, HT_BASIC_RATE, 0x00008003);
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 4fa43a2eeb73..9967a1d9f0ec 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -141,8 +141,11 @@ static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac,
 	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		return;
 
-	if (test_and_clear_bit(DELAYED_UPDATE_BEACON, &intf->delayed_flags))
+	if (test_and_clear_bit(DELAYED_UPDATE_BEACON, &intf->delayed_flags)) {
+		mutex_lock(&intf->beacon_skb_mutex);
 		rt2x00queue_update_beacon(rt2x00dev, vif);
+		mutex_unlock(&intf->beacon_skb_mutex);
+	}
 }
 
 static void rt2x00lib_intf_scheduled(struct work_struct *work)
@@ -216,7 +219,7 @@ static void rt2x00lib_beaconupdate_iter(void *data, u8 *mac,
 	 * never be called for USB devices.
 	 */
 	WARN_ON(rt2x00_is_usb(rt2x00dev));
-	rt2x00queue_update_beacon_locked(rt2x00dev, vif);
+	rt2x00queue_update_beacon(rt2x00dev, vif);
 }
 
 void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev)
@@ -1470,8 +1473,7 @@ void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev)
 	/*
 	 * Free the driver data.
 	 */
-	if (rt2x00dev->drv_data)
-		kfree(rt2x00dev->drv_data);
+	kfree(rt2x00dev->drv_data);
 }
 EXPORT_SYMBOL_GPL(rt2x00lib_remove_dev);
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index 004dff9b962d..ad6e5a8d1e10 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -626,25 +626,24 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
 	 * Start/stop beaconing.
 	 */
 	if (changes & BSS_CHANGED_BEACON_ENABLED) {
+		mutex_lock(&intf->beacon_skb_mutex);
 		if (!bss_conf->enable_beacon && intf->enable_beacon) {
 			rt2x00dev->intf_beaconing--;
 			intf->enable_beacon = false;
-			/*
-			 * Clear beacon in the H/W for this vif. This is needed
-			 * to disable beaconing on this particular interface
-			 * and keep it running on other interfaces.
-			 */
-			rt2x00queue_clear_beacon(rt2x00dev, vif);
 
 			if (rt2x00dev->intf_beaconing == 0) {
 				/*
 				 * Last beaconing interface disabled
 				 * -> stop beacon queue.
 				 */
-				mutex_lock(&intf->beacon_skb_mutex);
 				rt2x00queue_stop_queue(rt2x00dev->bcn);
-				mutex_unlock(&intf->beacon_skb_mutex);
 			}
+			/*
+			 * Clear beacon in the H/W for this vif. This is needed
+			 * to disable beaconing on this particular interface
+			 * and keep it running on other interfaces.
+			 */
+			rt2x00queue_clear_beacon(rt2x00dev, vif);
 		} else if (bss_conf->enable_beacon && !intf->enable_beacon) {
 			rt2x00dev->intf_beaconing++;
 			intf->enable_beacon = true;
@@ -660,11 +659,10 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
 				 * First beaconing interface enabled
 				 * -> start beacon queue.
 				 */
-				mutex_lock(&intf->beacon_skb_mutex);
 				rt2x00queue_start_queue(rt2x00dev->bcn);
-				mutex_unlock(&intf->beacon_skb_mutex);
 			}
 		}
+		mutex_unlock(&intf->beacon_skb_mutex);
 	}
 
 	/*
@@ -801,6 +799,8 @@ int rt2x00mac_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
 
 	setup.tx = tx_ant;
 	setup.rx = rx_ant;
+	setup.rx_chain_num = 0;
+	setup.tx_chain_num = 0;
 
 	rt2x00lib_config_antenna(rt2x00dev, setup);
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00mmio.c b/drivers/net/wireless/rt2x00/rt2x00mmio.c
index 6f236ea180aa..f0178fd4fe5f 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mmio.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mmio.c
@@ -119,14 +119,12 @@ static int rt2x00mmio_alloc_queue_dma(struct rt2x00_dev *rt2x00dev,
 	/*
 	 * Allocate DMA memory for descriptor and buffer.
 	 */
-	addr = dma_alloc_coherent(rt2x00dev->dev,
-				  queue->limit * queue->desc_size,
-				  &dma, GFP_KERNEL);
+	addr = dma_zalloc_coherent(rt2x00dev->dev,
+				   queue->limit * queue->desc_size, &dma,
+				   GFP_KERNEL);
 	if (!addr)
 		return -ENOMEM;
 
-	memset(addr, 0, queue->limit * queue->desc_size);
-
 	/*
 	 * Initialize all queue entries to contain valid addresses.
 	 */
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 5642ccceca7c..8e68f87ab13c 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -754,8 +754,6 @@ int rt2x00queue_clear_beacon(struct rt2x00_dev *rt2x00dev,
 	if (unlikely(!intf->beacon))
 		return -ENOBUFS;
 
-	mutex_lock(&intf->beacon_skb_mutex);
-
 	/*
 	 * Clean up the beacon skb.
 	 */
@@ -768,13 +766,11 @@ int rt2x00queue_clear_beacon(struct rt2x00_dev *rt2x00dev,
 	if (rt2x00dev->ops->lib->clear_beacon)
 		rt2x00dev->ops->lib->clear_beacon(intf->beacon);
 
-	mutex_unlock(&intf->beacon_skb_mutex);
-
 	return 0;
 }
 
-int rt2x00queue_update_beacon_locked(struct rt2x00_dev *rt2x00dev,
-				     struct ieee80211_vif *vif)
+int rt2x00queue_update_beacon(struct rt2x00_dev *rt2x00dev,
+			      struct ieee80211_vif *vif)
 {
 	struct rt2x00_intf *intf = vif_to_intf(vif);
 	struct skb_frame_desc *skbdesc;
@@ -815,19 +811,6 @@ int rt2x00queue_update_beacon_locked(struct rt2x00_dev *rt2x00dev,
 
 }
 
-int rt2x00queue_update_beacon(struct rt2x00_dev *rt2x00dev,
-			      struct ieee80211_vif *vif)
-{
-	struct rt2x00_intf *intf = vif_to_intf(vif);
-	int ret;
-
-	mutex_lock(&intf->beacon_skb_mutex);
-	ret = rt2x00queue_update_beacon_locked(rt2x00dev, vif);
-	mutex_unlock(&intf->beacon_skb_mutex);
-
-	return ret;
-}
-
 bool rt2x00queue_for_each_entry(struct data_queue *queue,
 				enum queue_index start,
 				enum queue_index end,
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h
index c48125be0e34..2233b911a1d7 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.h
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
@@ -353,6 +353,7 @@ struct txentry_desc {
  */
 enum queue_entry_flags {
 	ENTRY_BCN_ASSIGNED,
+	ENTRY_BCN_ENABLED,
 	ENTRY_OWNER_DEVICE_DATA,
 	ENTRY_DATA_PENDING,
 	ENTRY_DATA_IO_FAILED,