p54: upgrade memrecord to p54_tx_info

mac80211 reserves 24 bytes in skb->cb for the driver.
So far, we only used them to keep track of used and free device memory.
But p54spi will need a slice of it, as well as the stuck frame detection.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/net/wireless/p54/p54.h b/drivers/net/wireless/p54/p54.h
index ce9333877926..a06c2a676dfe 100644
--- a/drivers/net/wireless/p54/p54.h
+++ b/drivers/net/wireless/p54/p54.h
@@ -44,6 +44,16 @@ enum p54_control_frame_types {
         P54_CONTROL_TYPE_BT_OPTIONS = 35
 };
 
+/* provide 16 bytes for the transport back-end */
+#define P54_TX_INFO_DATA_SIZE           16
+
+/* stored in ieee80211_tx_info's rate_driver_data */
+struct p54_tx_info {
+        u32 start_addr;
+        u32 end_addr;
+        void *data[P54_TX_INFO_DATA_SIZE / sizeof(void *)];
+};
+
 #define P54_MAX_CTRL_FRAME_LEN          0x1000
 
 #define P54_HDR_FLAG_CONTROL            BIT(15)