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, 2 insertions, 5 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h
index d1707a7ca41f..c3493ed7f4c3 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.h
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
@@ -109,7 +109,6 @@ enum skb_frame_desc_flags {
  * this structure should not exceed the size of that array (48 bytes).
  *
  * @flags: Frame flags, see &enum skb_frame_desc_flags.
- * @frame_type: Frame type, see &enum rt2x00_dump_type.
  * @data: Pointer to data part of frame (Start of ieee80211 header).
  * @desc: Pointer to descriptor part of the frame.
  *      Note that this pointer could point to something outside
@@ -121,14 +120,12 @@ enum skb_frame_desc_flags {
 struct skb_frame_desc {
         unsigned int flags;
 
-        unsigned int frame_type;
+        unsigned short data_len;
+        unsigned short desc_len;
 
         void *data;
         void *desc;
 
-        unsigned int data_len;
-        unsigned int desc_len;
-
         struct queue_entry *entry;
 };