rt2x00: Move iv_len into tx descriptor data
By placing the iv_len into the tx descriptor data and
by passing this data to the crypto IV handlers we can
save multiple calls to ieee80211_get_hdrlen_from_skb()
and some if-statements when copying/removing the IV data
from the outgoing frame.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h
index 97e2ab0..e3bfd73 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.h
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
@@ -280,6 +280,7 @@
* @cipher: Cipher type used for encryption.
* @key_idx: Key index used for encryption.
* @iv_offset: Position where IV should be inserted by hardware.
+ * @iv_len: Length of IV data.
*/
struct txentry_desc {
unsigned long flags;
@@ -302,6 +303,7 @@
enum cipher cipher;
u16 key_idx;
u16 iv_offset;
+ u16 iv_len;
};
/**