7 files changed, 76 insertions, 31 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index afa565c6362..69b1dbd1adf 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1137,7 +1137,18 @@ static void rt2400pci_txdone(struct rt2x00_dev *rt2x00dev,
 		/*
 		 * Obtain the status about this packet.
 		 */
-		txdesc.status = rt2x00_get_field32(word, TXD_W0_RESULT);
+		txdesc.flags = 0;
+		switch (rt2x00_get_field32(word, TXD_W0_RESULT)) {
+		case 0: /* Success */
+		case 1: /* Success with retry */
+			__set_bit(TXDONE_SUCCESS, &txdesc.flags);
+			break;
+		case 2: /* Failure, excessive retries */
+			__set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags);
+			/* Don't break, this is a failed frame! */
+		default: /* Failure */
+			__set_bit(TXDONE_FAILURE, &txdesc.flags);
+		}
 		txdesc.retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT);
 
 		rt2x00pci_txdone(rt2x00dev, entry, &txdesc);
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index c06f1b5e588..aa195dab155 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1292,7 +1292,18 @@ static void rt2500pci_txdone(struct rt2x00_dev *rt2x00dev,
 		/*
 		 * Obtain the status about this packet.
 		 */
-		txdesc.status = rt2x00_get_field32(word, TXD_W0_RESULT);
+		txdesc.flags = 0;
+		switch (rt2x00_get_field32(word, TXD_W0_RESULT)) {
+		case 0: /* Success */
+		case 1: /* Success with retry */
+			__set_bit(TXDONE_SUCCESS, &txdesc.flags);
+			break;
+		case 2: /* Failure, excessive retries */
+			__set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags);
+			/* Don't break, this is a failed frame! */
+		default: /* Failure */
+			__set_bit(TXDONE_FAILURE, &txdesc.flags);
+		}
 		txdesc.retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT);
 
 		rt2x00pci_txdone(rt2x00dev, entry, &txdesc);
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index ea130f2eb00..69da22cf085 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -496,38 +496,36 @@ void rt2x00lib_txdone(struct queue_entry *entry,
 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
 	struct skb_frame_desc *skbdesc;
 	struct ieee80211_tx_status tx_status;
-	int success = !!(txdesc->status == TX_SUCCESS ||
-			 txdesc->status == TX_SUCCESS_RETRY);
-	int fail = !!(txdesc->status == TX_FAIL_RETRY ||
-		      txdesc->status == TX_FAIL_INVALID ||
-		      txdesc->status == TX_FAIL_OTHER);
 
 	/*
 	 * Update TX statistics.
 	 */
-	rt2x00dev->link.qual.tx_success += success;
-	rt2x00dev->link.qual.tx_failed += txdesc->retry + fail;
+	rt2x00dev->link.qual.tx_success +=
+	    test_bit(TXDONE_SUCCESS, &txdesc->flags);
+	rt2x00dev->link.qual.tx_failed +=
+	    txdesc->retry + !!test_bit(TXDONE_FAILURE, &txdesc->flags);
 
 	/*
 	 * Initialize TX status
 	 */
 	tx_status.flags = 0;
 	tx_status.ack_signal = 0;
-	tx_status.excessive_retries = (txdesc->status == TX_FAIL_RETRY);
+	tx_status.excessive_retries =
+	    test_bit(TXDONE_EXCESSIVE_RETRY, &txdesc->flags);
 	tx_status.retry_count = txdesc->retry;
 	memcpy(&tx_status.control, txdesc->control, sizeof(*txdesc->control));
 
 	if (!(tx_status.control.flags & IEEE80211_TXCTL_NO_ACK)) {
-		if (success)
+		if (test_bit(TXDONE_SUCCESS, &txdesc->flags))
 			tx_status.flags |= IEEE80211_TX_STATUS_ACK;
-		else
+		else if (test_bit(TXDONE_FAILURE, &txdesc->flags))
 			rt2x00dev->low_level_stats.dot11ACKFailureCount++;
 	}
 
 	if (tx_status.control.flags & IEEE80211_TXCTL_USE_RTS_CTS) {
-		if (success)
+		if (test_bit(TXDONE_SUCCESS, &txdesc->flags))
 			rt2x00dev->low_level_stats.dot11RTSSuccessCount++;
-		else
+		else if (test_bit(TXDONE_FAILURE, &txdesc->flags))
 			rt2x00dev->low_level_stats.dot11RTSFailureCount++;
 	}
 
@@ -546,7 +544,7 @@ void rt2x00lib_txdone(struct queue_entry *entry,
 		ieee80211_tx_status_irqsafe(rt2x00dev->hw,
 					    entry->skb, &tx_status);
 	else
-		dev_kfree_skb(entry->skb);
+		dev_kfree_skb_irq(entry->skb);
 	entry->skb = NULL;
 }
 EXPORT_SYMBOL_GPL(rt2x00lib_txdone);
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h
index c3493ed7f4c..f361f784965 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.h
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
@@ -168,18 +168,34 @@ struct rxdone_entry_desc {
 };
 
 /**
+ * enum txdone_entry_desc_flags: Flags for &struct txdone_entry_desc
+ *
+ * @TXDONE_UNKNOWN: Hardware could not determine success of transmission.
+ * @TXDONE_SUCCESS: Frame was successfully send
+ * @TXDONE_FAILURE: Frame was not successfully send
+ * @TXDONE_EXCESSIVE_RETRY: In addition to &TXDONE_FAILURE, the
+ *	frame transmission failed due to excessive retries.
+ */
+enum txdone_entry_desc_flags {
+	TXDONE_UNKNOWN = 1 << 0,
+	TXDONE_SUCCESS = 1 << 1,
+	TXDONE_FAILURE = 1 << 2,
+	TXDONE_EXCESSIVE_RETRY = 1 << 3,
+};
+
+/**
  * struct txdone_entry_desc: TX done entry descriptor
  *
  * Summary of information that has been read from the TX frame descriptor
  * after the device is done with transmission.
  *
  * @control: Control structure which was used to transmit the frame.
- * @status: TX status (See &enum tx_status).
+ * @flags: TX done flags (See &enum txdone_entry_desc_flags).
  * @retry: Retry count.
  */
 struct txdone_entry_desc {
 	struct ieee80211_tx_control *control;
-	int status;
+	unsigned long flags;
 	int retry;
 };
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00reg.h b/drivers/net/wireless/rt2x00/rt2x00reg.h
index 0325bed2fbf..3f255df58b7 100644
--- a/drivers/net/wireless/rt2x00/rt2x00reg.h
+++ b/drivers/net/wireless/rt2x00/rt2x00reg.h
@@ -27,17 +27,6 @@
 #define RT2X00REG_H
 
 /*
- * TX result flags.
- */
-enum tx_status {
-	TX_SUCCESS = 0,
-	TX_SUCCESS_RETRY = 1,
-	TX_FAIL_RETRY = 2,
-	TX_FAIL_INVALID = 3,
-	TX_FAIL_OTHER = 4,
-};
-
-/*
  * Antenna values
  */
 enum antenna {
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index 98aafc2d584..caee65e8219 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.c
@@ -147,8 +147,17 @@ static void rt2x00usb_interrupt_txdone(struct urb *urb)
 
 	/*
 	 * Obtain the status about this packet.
+	 * Note that when the status is 0 it does not mean the
+	 * frame was send out correctly. It only means the frame
+	 * was succesfully pushed to the hardware, we have no
+	 * way to determine the transmission status right now.
+	 * (Only indirectly by looking at the failed TX counters
+	 * in the register).
 	 */
-	txdesc.status = !urb->status ? TX_SUCCESS : TX_FAIL_RETRY;
+	if (!urb->status)
+		__set_bit(TXDONE_UNKNOWN, &txdesc.flags);
+	else
+		__set_bit(TXDONE_FAILURE, &txdesc.flags);
 	txdesc.retry = 0;
 	txdesc.control = &priv_tx->control;
 
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index edddbf35bba..15191d6581b 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -1764,7 +1764,8 @@ static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev)
 				"TX status report missed for entry %d\n",
 				entry_done->entry_idx);
 
-			txdesc.status = TX_FAIL_OTHER;
+			txdesc.flags = 0;
+			__set_bit(TXDONE_UNKNOWN, &txdesc.flags);
 			txdesc.retry = 0;
 
 			rt2x00pci_txdone(rt2x00dev, entry_done, &txdesc);
@@ -1774,7 +1775,17 @@ static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev)
 		/*
 		 * Obtain the status about this packet.
 		 */
-		txdesc.status = rt2x00_get_field32(reg, STA_CSR4_TX_RESULT);
+		txdesc.flags = 0;
+		switch (rt2x00_get_field32(reg, STA_CSR4_TX_RESULT)) {
+		case 0: /* Success, maybe with retry */
+			__set_bit(TXDONE_SUCCESS, &txdesc.flags);
+			break;
+		case 6: /* Failure, excessive retries */
+			__set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags);
+			/* Don't break, this is a failed frame! */
+		default: /* Failure */
+			__set_bit(TXDONE_FAILURE, &txdesc.flags);
+		}
 		txdesc.retry = rt2x00_get_field32(reg, STA_CSR4_RETRY_COUNT);
 
 		rt2x00pci_txdone(rt2x00dev, entry, &txdesc);