1 files changed, 37 insertions, 34 deletions

diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 11c130748206..e35bd19c3c5a 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -1441,12 +1441,38 @@ static void rt73usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
                                   struct txentry_desc *txdesc)
 {
         struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
-        __le32 *txd = skbdesc->desc;
+        __le32 *txd = (__le32 *)(skb->data - TXD_DESC_SIZE);
         u32 word;
 
         /*
          * Start writing the descriptor words.
          */
+        rt2x00_desc_read(txd, 0, &word);
+        rt2x00_set_field32(&word, TXD_W0_BURST,
+                           test_bit(ENTRY_TXD_BURST, &txdesc->flags));
+        rt2x00_set_field32(&word, TXD_W0_VALID, 1);
+        rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
+                           test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
+        rt2x00_set_field32(&word, TXD_W0_ACK,
+                           test_bit(ENTRY_TXD_ACK, &txdesc->flags));
+        rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
+                           test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
+        rt2x00_set_field32(&word, TXD_W0_OFDM,
+                           (txdesc->rate_mode == RATE_MODE_OFDM));
+        rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
+        rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
+                           test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags));
+        rt2x00_set_field32(&word, TXD_W0_TKIP_MIC,
+                           test_bit(ENTRY_TXD_ENCRYPT_MMIC, &txdesc->flags));
+        rt2x00_set_field32(&word, TXD_W0_KEY_TABLE,
+                           test_bit(ENTRY_TXD_ENCRYPT_PAIRWISE, &txdesc->flags));
+        rt2x00_set_field32(&word, TXD_W0_KEY_INDEX, txdesc->key_idx);
+        rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, txdesc->length);
+        rt2x00_set_field32(&word, TXD_W0_BURST2,
+                           test_bit(ENTRY_TXD_BURST, &txdesc->flags));
+        rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, txdesc->cipher);
+        rt2x00_desc_write(txd, 0, word);
+
         rt2x00_desc_read(txd, 1, &word);
         rt2x00_set_field32(&word, TXD_W1_HOST_Q_ID, txdesc->queue);
         rt2x00_set_field32(&word, TXD_W1_AIFSN, txdesc->aifs);
@@ -1475,31 +1501,11 @@ static void rt73usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
         rt2x00_set_field32(&word, TXD_W5_WAITING_DMA_DONE_INT, 1);
         rt2x00_desc_write(txd, 5, word);
 
-        rt2x00_desc_read(txd, 0, &word);
-        rt2x00_set_field32(&word, TXD_W0_BURST,
-                           test_bit(ENTRY_TXD_BURST, &txdesc->flags));
-        rt2x00_set_field32(&word, TXD_W0_VALID, 1);
-        rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
-                           test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
-        rt2x00_set_field32(&word, TXD_W0_ACK,
-                           test_bit(ENTRY_TXD_ACK, &txdesc->flags));
-        rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
-                           test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
-        rt2x00_set_field32(&word, TXD_W0_OFDM,
-                           (txdesc->rate_mode == RATE_MODE_OFDM));
-        rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
-        rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
-                           test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags));
-        rt2x00_set_field32(&word, TXD_W0_TKIP_MIC,
-                           test_bit(ENTRY_TXD_ENCRYPT_MMIC, &txdesc->flags));
-        rt2x00_set_field32(&word, TXD_W0_KEY_TABLE,
-                           test_bit(ENTRY_TXD_ENCRYPT_PAIRWISE, &txdesc->flags));
-        rt2x00_set_field32(&word, TXD_W0_KEY_INDEX, txdesc->key_idx);
-        rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, txdesc->length);
-        rt2x00_set_field32(&word, TXD_W0_BURST2,
-                           test_bit(ENTRY_TXD_BURST, &txdesc->flags));
-        rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, txdesc->cipher);
-        rt2x00_desc_write(txd, 0, word);
+        /*
+         * Register descriptor details in skb frame descriptor.
+         */
+        skbdesc->desc = txd;
+        skbdesc->desc_len = TXD_DESC_SIZE;
 }
 
 /*
@@ -1509,18 +1515,10 @@ static void rt73usb_write_beacon(struct queue_entry *entry,
                                  struct txentry_desc *txdesc)
 {
         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
-        struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
         unsigned int beacon_base;
         u32 reg;
 
         /*
-         * Add the descriptor in front of the skb.
-         */
-        skb_push(entry->skb, entry->queue->desc_size);
-        memcpy(entry->skb->data, skbdesc->desc, skbdesc->desc_len);
-        skbdesc->desc = entry->skb->data;
-
-        /*
          * Disable beaconing while we are reloading the beacon data,
          * otherwise we might be sending out invalid data.
          */
@@ -1529,6 +1527,11 @@ static void rt73usb_write_beacon(struct queue_entry *entry,
         rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg);
 
         /*
+         * Take the descriptor in front of the skb into account.
+         */
+        skb_push(entry->skb, TXD_DESC_SIZE);
+
+        /*
          * Write entire beacon with descriptor to register.
          */
         beacon_base = HW_BEACON_OFFSET(entry->entry_idx);