rt2x00: skb->data pointer should not include TX descriptor

Make sure the skb->data pointer points to the frame data, not the TX
descriptor. The frame dumping code relies on that.

Signed-off-by: Mattias Nissler <mattias.nissler@gmx.de>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 8 insertions, 9 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index c5f49e36559a..0e008b606f70 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1114,8 +1114,7 @@ static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
         rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
                            test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags));
         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
-        rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT,
-                           skb->len - skbdesc->desc_len);
+        rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skb->len);
         rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE);
         rt2x00_desc_write(txd, 0, word);
 }
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index 2dd7c830c125..b73a7e0aeed4 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.c
@@ -168,11 +168,6 @@ static void rt2x00usb_interrupt_txdone(struct urb *urb)
                 return;
 
         /*
-         * Remove the descriptor data from the buffer.
-         */
-        skb_pull(entry->skb, entry->queue->desc_size);
-
-        /*
          * 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
@@ -224,6 +219,12 @@ int rt2x00usb_write_tx_data(struct queue_entry *entry)
                           entry->skb->data, length,
                           rt2x00usb_interrupt_txdone, entry);
 
+        /*
+         * Make sure the skb->data pointer points to the frame, not the
+         * descriptor.
+         */
+        skb_pull(entry->skb, entry->queue->desc_size);
+
         return 0;
 }
 EXPORT_SYMBOL_GPL(rt2x00usb_write_tx_data);
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index cf236ec533a9..e698ae0efbce 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -1556,8 +1556,7 @@ static void rt73usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
         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,
-                           skb->len - skbdesc->desc_len);
+        rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skb->len);
         rt2x00_set_field32(&word, TXD_W0_BURST2,
                            test_bit(ENTRY_TXD_BURST, &txdesc->flags));
         rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, txdesc->cipher);