rt2x00: Fix race conditions in flag handling

Some of the flags should be accessed atomically to
prevent race conditions. The flags that are most important
are those that can change often and indicate the actual
state of the device, queue or queue entry.

The big flag rename was done to move all state flags to
the same naming type as the other rt2x00dev flags and
made sure all places where the flags were used were changed. ;)

Thanks to Stephen for most of the queue flags updates,
which fixes some of the most obvious consequences of the
race conditions. Among those the notorious:

rt2x00queue_write_tx_frame: Error - Arrived at non-free entry in the non-full queue 0.
rt2x00queue_write_tx_frame: Error - Arrived at non-free entry in the non-full queue 0.
rt2x00queue_write_tx_frame: Error - Arrived at non-free entry in the non-full queue 0.

Signed-off-by: Stephen Blackheath <tramp.enshrine.stephen@blacksapphire.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index 0107cec..18b703c 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1241,7 +1241,7 @@
 	if (!reg)
 		return IRQ_NONE;
 
-	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		return IRQ_HANDLED;
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index e0ff76f..5cc706a 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1377,7 +1377,7 @@
 	if (!reg)
 		return IRQ_NONE;
 
-	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		return IRQ_HANDLED;
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 3b90ed6..c6be4dd 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1297,7 +1297,7 @@
 	struct queue_entry *entry = (struct queue_entry *)urb->context;
 	struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
 
-	if (!test_bit(DEVICE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
 		return;
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 3fa3d5b..08095bf 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -629,14 +629,14 @@
 	/*
 	 * Device state flags
 	 */
-	DEVICE_PRESENT,
-	DEVICE_REGISTERED_HW,
-	DEVICE_INITIALIZED,
-	DEVICE_STARTED,
-	DEVICE_STARTED_SUSPEND,
-	DEVICE_ENABLED_RADIO,
-	DEVICE_DISABLED_RADIO_HW,
-	DEVICE_DIRTY_CONFIG,
+	DEVICE_STATE_PRESENT,
+	DEVICE_STATE_REGISTERED_HW,
+	DEVICE_STATE_INITIALIZED,
+	DEVICE_STATE_STARTED,
+	DEVICE_STATE_STARTED_SUSPEND,
+	DEVICE_STATE_ENABLED_RADIO,
+	DEVICE_STATE_DISABLED_RADIO_HW,
+	DEVICE_STATE_DIRTY_CONFIG,
 
 	/*
 	 * Driver requirements
diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c
index ea37c79..ca051f5 100644
--- a/drivers/net/wireless/rt2x00/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00/rt2x00config.c
@@ -121,7 +121,7 @@
 	 * Antenna setup changes require the RX to be disabled,
 	 * else the changes will be ignored by the device.
 	 */
-	if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF_LINK);
 
 	/*
@@ -136,7 +136,7 @@
 	rt2x00dev->link.ant.active.rx = libconf.ant.rx;
 	rt2x00dev->link.ant.active.tx = libconf.ant.tx;
 
-	if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON_LINK);
 }
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 328ff8b..330ab77 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -34,7 +34,7 @@
  */
 void rt2x00lib_reset_link_tuner(struct rt2x00_dev *rt2x00dev)
 {
-	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		return;
 
 	/*
@@ -94,8 +94,8 @@
 	 * Don't enable the radio twice.
 	 * And check if the hardware button has been disabled.
 	 */
-	if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
-	    test_bit(DEVICE_DISABLED_RADIO_HW, &rt2x00dev->flags))
+	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags) ||
+	    test_bit(DEVICE_STATE_DISABLED_RADIO_HW, &rt2x00dev->flags))
 		return 0;
 
 	/*
@@ -117,7 +117,7 @@
 	rt2x00leds_led_radio(rt2x00dev, true);
 	rt2x00led_led_activity(rt2x00dev, true);
 
-	__set_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags);
+	set_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags);
 
 	/*
 	 * Enable RX.
@@ -134,7 +134,7 @@
 
 void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev)
 {
-	if (!__test_and_clear_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+	if (!test_and_clear_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		return;
 
 	/*
@@ -354,7 +354,7 @@
 	 * When the radio is shutting down we should
 	 * immediately cease all link tuning.
 	 */
-	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		return;
 
 	/*
@@ -431,7 +431,7 @@
 	 * note that in the spinlock protected area above the delayed_flags
 	 * have been cleared correctly.
 	 */
-	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		return;
 
 	if (delayed_flags & DELAYED_UPDATE_BEACON)
@@ -484,7 +484,7 @@
 
 void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev)
 {
-	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		return;
 
 	ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw,
@@ -572,7 +572,7 @@
 
 	rt2x00dev->ops->lib->init_txentry(rt2x00dev, entry);
 
-	__clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
+	clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
 	rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE);
 
 	/*
@@ -888,7 +888,7 @@
 
 static void rt2x00lib_remove_hw(struct rt2x00_dev *rt2x00dev)
 {
-	if (test_bit(DEVICE_REGISTERED_HW, &rt2x00dev->flags))
+	if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags))
 		ieee80211_unregister_hw(rt2x00dev->hw);
 
 	if (likely(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ])) {
@@ -906,6 +906,9 @@
 	struct hw_mode_spec *spec = &rt2x00dev->spec;
 	int status;
 
+	if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags))
+		return 0;
+
 	/*
 	 * Initialize HW modes.
 	 */
@@ -927,7 +930,7 @@
 		return status;
 	}
 
-	__set_bit(DEVICE_REGISTERED_HW, &rt2x00dev->flags);
+	set_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags);
 
 	return 0;
 }
@@ -937,7 +940,7 @@
  */
 static void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev)
 {
-	if (!__test_and_clear_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
+	if (!test_and_clear_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags))
 		return;
 
 	/*
@@ -960,7 +963,7 @@
 {
 	int status;
 
-	if (test_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
+	if (test_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags))
 		return 0;
 
 	/*
@@ -979,7 +982,7 @@
 		return status;
 	}
 
-	__set_bit(DEVICE_INITIALIZED, &rt2x00dev->flags);
+	set_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags);
 
 	/*
 	 * Register the extra components.
@@ -993,7 +996,7 @@
 {
 	int retval;
 
-	if (test_bit(DEVICE_STARTED, &rt2x00dev->flags))
+	if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
 		return 0;
 
 	/*
@@ -1024,15 +1027,15 @@
 	rt2x00dev->intf_sta_count = 0;
 	rt2x00dev->intf_associated = 0;
 
-	__set_bit(DEVICE_STARTED, &rt2x00dev->flags);
-	__set_bit(DEVICE_DIRTY_CONFIG, &rt2x00dev->flags);
+	set_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags);
+	set_bit(DEVICE_STATE_DIRTY_CONFIG, &rt2x00dev->flags);
 
 	return 0;
 }
 
 void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev)
 {
-	if (!test_bit(DEVICE_STARTED, &rt2x00dev->flags))
+	if (!test_and_clear_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
 		return;
 
 	/*
@@ -1044,8 +1047,6 @@
 	rt2x00dev->intf_ap_count = 0;
 	rt2x00dev->intf_sta_count = 0;
 	rt2x00dev->intf_associated = 0;
-
-	__clear_bit(DEVICE_STARTED, &rt2x00dev->flags);
 }
 
 /*
@@ -1100,7 +1101,7 @@
 	rt2x00rfkill_allocate(rt2x00dev);
 	rt2x00debug_register(rt2x00dev);
 
-	__set_bit(DEVICE_PRESENT, &rt2x00dev->flags);
+	set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags);
 
 	return 0;
 
@@ -1113,7 +1114,7 @@
 
 void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev)
 {
-	__clear_bit(DEVICE_PRESENT, &rt2x00dev->flags);
+	clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags);
 
 	/*
 	 * Disable radio.
@@ -1158,14 +1159,15 @@
 	int retval;
 
 	NOTICE(rt2x00dev, "Going to sleep.\n");
-	__clear_bit(DEVICE_PRESENT, &rt2x00dev->flags);
 
 	/*
 	 * Only continue if mac80211 has open interfaces.
 	 */
-	if (!test_bit(DEVICE_STARTED, &rt2x00dev->flags))
+	if (!test_and_clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) ||
+	    !test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
 		goto exit;
-	__set_bit(DEVICE_STARTED_SUSPEND, &rt2x00dev->flags);
+
+	set_bit(DEVICE_STATE_STARTED_SUSPEND, &rt2x00dev->flags);
 
 	/*
 	 * Disable radio.
@@ -1237,7 +1239,7 @@
 	/*
 	 * Only continue if mac80211 had open interfaces.
 	 */
-	if (!__test_and_clear_bit(DEVICE_STARTED_SUSPEND, &rt2x00dev->flags))
+	if (!test_and_clear_bit(DEVICE_STATE_STARTED_SUSPEND, &rt2x00dev->flags))
 		return 0;
 
 	/*
@@ -1264,7 +1266,7 @@
 	/*
 	 * We are ready again to receive requests from mac80211.
 	 */
-	__set_bit(DEVICE_PRESENT, &rt2x00dev->flags);
+	set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags);
 
 	/*
 	 * It is possible that during that mac80211 has attempted
@@ -1284,7 +1286,7 @@
 	return 0;
 
 exit:
-	rt2x00lib_disable_radio(rt2x00dev);
+	rt2x00lib_stop(rt2x00dev);
 	rt2x00lib_uninitialize(rt2x00dev);
 	rt2x00debug_deregister(rt2x00dev);
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index 3af4273..11be895 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -117,7 +117,7 @@
 	 * Note that we can only stop the TX queues inside the TX path
 	 * due to possible race conditions in mac80211.
 	 */
-	if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
 		goto exit_fail;
 
 	/*
@@ -175,7 +175,7 @@
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
 
-	if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
 		return 0;
 
 	return rt2x00lib_start(rt2x00dev);
@@ -186,7 +186,7 @@
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
 
-	if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
 		return;
 
 	rt2x00lib_stop(rt2x00dev);
@@ -206,8 +206,8 @@
 	 * Don't allow interfaces to be added
 	 * the device has disappeared.
 	 */
-	if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags) ||
-	    !test_bit(DEVICE_STARTED, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) ||
+	    !test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
 		return -ENODEV;
 
 	switch (conf->type) {
@@ -256,7 +256,7 @@
 	 */
 	for (i = 0; i < queue->limit; i++) {
 		entry = &queue->entries[i];
-		if (!__test_and_set_bit(ENTRY_BCN_ASSIGNED, &entry->flags))
+		if (!test_and_set_bit(ENTRY_BCN_ASSIGNED, &entry->flags))
 			break;
 	}
 
@@ -310,7 +310,7 @@
 	 * either the device has disappeared or when
 	 * no interface is present.
 	 */
-	if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags) ||
+	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) ||
 	    (conf->type == IEEE80211_IF_TYPE_AP && !rt2x00dev->intf_ap_count) ||
 	    (conf->type != IEEE80211_IF_TYPE_AP && !rt2x00dev->intf_sta_count))
 		return;
@@ -324,7 +324,7 @@
 	 * Release beacon entry so it is available for
 	 * new interfaces again.
 	 */
-	__clear_bit(ENTRY_BCN_ASSIGNED, &intf->beacon->flags);
+	clear_bit(ENTRY_BCN_ASSIGNED, &intf->beacon->flags);
 
 	/*
 	 * Make sure the bssid and mac address registers
@@ -344,14 +344,14 @@
 	 * Mac80211 might be calling this function while we are trying
 	 * to remove the device or perhaps suspending it.
 	 */
-	if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
 		return 0;
 
 	/*
 	 * Check if we need to disable the radio,
 	 * if this is not the case, at least the RX must be disabled.
 	 */
-	if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags)) {
+	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) {
 		if (!conf->radio_enabled)
 			rt2x00lib_disable_radio(rt2x00dev);
 		else
@@ -366,14 +366,14 @@
 	 * initialized.
 	 */
 	force_reconfig =
-	    __test_and_clear_bit(DEVICE_DIRTY_CONFIG, &rt2x00dev->flags);
+	    test_and_clear_bit(DEVICE_STATE_DIRTY_CONFIG, &rt2x00dev->flags);
 
 	rt2x00lib_config(rt2x00dev, conf, force_reconfig);
 
 	/*
 	 * Reenable RX only if the radio should be on.
 	 */
-	if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
 	else if (conf->radio_enabled)
 		return rt2x00lib_enable_radio(rt2x00dev);
@@ -395,7 +395,7 @@
 	 * Mac80211 might be calling this function while we are trying
 	 * to remove the device or perhaps suspending it.
 	 */
-	if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
 		return 0;
 
 	spin_lock(&intf->lock);
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index c0f97c5..d10a801 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -356,7 +356,7 @@
 	if (unlikely(rt2x00queue_full(queue)))
 		return -EINVAL;
 
-	if (__test_and_set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags)) {
+	if (test_and_set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags)) {
 		ERROR(queue->rt2x00dev,
 		      "Arrived at non-free entry in the non-full queue %d.\n"
 		      "Please file bug report to %s.\n",
@@ -396,7 +396,7 @@
 	 * the frame to mac80211 because the skb->cb has now been tainted.
 	 */
 	if (unlikely(queue->rt2x00dev->ops->lib->write_tx_data(entry))) {
-		__clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
+		clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
 		dev_kfree_skb_any(entry->skb);
 		entry->skb = NULL;
 		return 0;
@@ -405,7 +405,7 @@
 	if (test_bit(DRIVER_REQUIRE_DMA, &queue->rt2x00dev->flags))
 		rt2x00queue_map_txskb(queue->rt2x00dev, skb);
 
-	__set_bit(ENTRY_DATA_PENDING, &entry->flags);
+	set_bit(ENTRY_DATA_PENDING, &entry->flags);
 
 	rt2x00queue_index_inc(queue, Q_INDEX);
 	rt2x00queue_write_tx_descriptor(entry, &txdesc);
diff --git a/drivers/net/wireless/rt2x00/rt2x00rfkill.c b/drivers/net/wireless/rt2x00/rt2x00rfkill.c
index 04b2971..8a2fefb 100644
--- a/drivers/net/wireless/rt2x00/rt2x00rfkill.c
+++ b/drivers/net/wireless/rt2x00/rt2x00rfkill.c
@@ -41,16 +41,16 @@
 	/*
 	 * Only continue if there are enabled interfaces.
 	 */
-	if (!test_bit(DEVICE_STARTED, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
 		return 0;
 
 	if (state == RFKILL_STATE_UNBLOCKED) {
 		INFO(rt2x00dev, "Hardware button pressed, enabling radio.\n");
-		__clear_bit(DEVICE_DISABLED_RADIO_HW, &rt2x00dev->flags);
+		clear_bit(DEVICE_STATE_DISABLED_RADIO_HW, &rt2x00dev->flags);
 		retval = rt2x00lib_enable_radio(rt2x00dev);
 	} else if (state == RFKILL_STATE_SOFT_BLOCKED) {
 		INFO(rt2x00dev, "Hardware button pressed, disabling radio.\n");
-		__set_bit(DEVICE_DISABLED_RADIO_HW, &rt2x00dev->flags);
+		set_bit(DEVICE_STATE_DISABLED_RADIO_HW, &rt2x00dev->flags);
 		rt2x00lib_disable_radio(rt2x00dev);
 	} else {
 		WARNING(rt2x00dev, "Received unexpected rfkill state %d.\n",
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index 2050227..2dd7c83 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.c
@@ -163,7 +163,7 @@
 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
 	struct txdone_entry_desc txdesc;
 
-	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
+	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags) ||
 	    !test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags))
 		return;
 
@@ -232,7 +232,7 @@
 {
 	struct queue_entry_priv_usb *entry_priv = entry->priv_data;
 
-	if (__test_and_clear_bit(ENTRY_DATA_PENDING, &entry->flags))
+	if (test_and_clear_bit(ENTRY_DATA_PENDING, &entry->flags))
 		usb_submit_urb(entry_priv->urb, GFP_ATOMIC);
 }
 
@@ -283,7 +283,7 @@
 	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
 	u8 rxd[32];
 
-	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
+	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags) ||
 	    !test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags))
 		return;
 
@@ -293,7 +293,7 @@
 	 * a problem.
 	 */
 	if (urb->actual_length < entry->queue->desc_size || urb->status) {
-		__set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
+		set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
 		usb_submit_urb(urb, GFP_ATOMIC);
 		return;
 	}
@@ -361,7 +361,7 @@
 			  entry->skb->data, entry->skb->len,
 			  rt2x00usb_interrupt_rxdone, entry);
 
-	__set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
+	set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
 	usb_submit_urb(entry_priv->urb, GFP_ATOMIC);
 }
 EXPORT_SYMBOL_GPL(rt2x00usb_init_rxentry);
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 23cf93d..9d27ce0 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -2121,7 +2121,7 @@
 	if (!reg && !reg_mcu)
 		return IRQ_NONE;
 
-	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		return IRQ_HANDLED;
 
 	/*