rt2x00: trim skb_frame_desc to 32 bytes

Remove frame_type from skb_frame_desc and pass it
as argument to rt2x00debug_dump_frame().

Change data_len and desc_len to unsigned short
to save another 4 bytes in skb_frame_desc. Note that
this was the only location where the data_len and
desc_len was not yet treated as unsigned short.

This trim is required to help mac80211 with adding
the TX control and TX status informtation into the
skb->cb structure. When that happens, drivers will
have approximately 40 bytes left to use freely.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 9 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 3a49c256789f..ea130f2eb008 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -28,7 +28,6 @@
 
 #include "rt2x00.h"
 #include "rt2x00lib.h"
-#include "rt2x00dump.h"
 
 /*
  * Link tuning handlers
@@ -540,11 +539,9 @@ void rt2x00lib_txdone(struct queue_entry *entry,
          * If send to mac80211, mac80211 will clean up the skb structure,
          * otherwise we have to do it ourself.
          */
-        skbdesc = get_skb_frame_desc(entry->skb);
-        skbdesc->frame_type = DUMP_FRAME_TXDONE;
-
-        rt2x00debug_dump_frame(rt2x00dev, entry->skb);
+        rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_TXDONE, entry->skb);
 
+        skbdesc = get_skb_frame_desc(entry->skb);
         if (!(skbdesc->flags & FRAME_DESC_DRIVER_GENERATED))
                 ieee80211_tx_status_irqsafe(rt2x00dev->hw,
                                             entry->skb, &tx_status);
@@ -610,8 +607,7 @@ void rt2x00lib_rxdone(struct queue_entry *entry,
          * Send frame to mac80211 & debugfs.
          * mac80211 will clean up the skb structure.
          */
-        get_skb_frame_desc(entry->skb)->frame_type = DUMP_FRAME_RXDONE;
-        rt2x00debug_dump_frame(rt2x00dev, entry->skb);
+        rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_RXDONE, entry->skb);
         ieee80211_rx_irqsafe(rt2x00dev->hw, entry->skb, rx_status);
         entry->skb = NULL;
 }
@@ -752,8 +748,7 @@ void rt2x00lib_write_tx_desc(struct rt2x00_dev *rt2x00dev,
          * frame to the device, but we are going to push the
          * frame to debugfs here.
          */
-        skbdesc->frame_type = DUMP_FRAME_TX;
-        rt2x00debug_dump_frame(rt2x00dev, skb);
+        rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_TX, skb);
 }
 EXPORT_SYMBOL_GPL(rt2x00lib_write_tx_desc);