rt2x00: Add skb descriptor
Use the skb->cb field to add a frame description that can be used
to transfer information passed each rt2x00 layer. This reduces the
required arguments for rt2x00lib_write_tx_desc().
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wireless/rt2x00/rt2x00ring.h b/drivers/net/wireless/rt2x00/rt2x00ring.h
index 5b871ad..5b32f3e 100644
--- a/drivers/net/wireless/rt2x00/rt2x00ring.h
+++ b/drivers/net/wireless/rt2x00/rt2x00ring.h
@@ -27,6 +27,28 @@
#define RT2X00RING_H
/*
+ * skb_desc
+ * Descriptor information for the skb buffer
+ */
+struct skb_desc {
+ unsigned int frame_type;
+
+ unsigned int desc_len;
+ unsigned int data_len;
+
+ void *desc;
+ void *data;
+
+ struct data_ring *ring;
+ struct data_entry *entry;
+};
+
+static inline struct skb_desc* get_skb_desc(struct sk_buff *skb)
+{
+ return (struct skb_desc*)&skb->cb[0];
+}
+
+/*
* rxdata_entry_desc
* Summary of information that has been read from the
* RX frame descriptor.