b43: Rewrite TX bounce buffer handling

[karo-tx-linux.git] / drivers / net / wireless / b43 / xmit.h

diff --git a/drivers/net/wireless/b43/xmit.h b/drivers/net/wireless/b43/xmit.h
index 3530de871873a1349e13b4e6c46942c118b5d421..d23ff9fe0c9e3fe1acab1c0d383f8c14630844cf 100644 (file)
--- a/drivers/net/wireless/b43/xmit.h
+++ b/drivers/net/wireless/b43/xmit.h
@@ -2,6 +2,8 @@
 #define B43_XMIT_H_
 
 #include "main.h"
+#include <net/mac80211.h>
+
 
 #define _b43_declare_plcp_hdr(size) \
        struct b43_plcp_hdr##size {             \
@@ -332,4 +334,21 @@ static inline u8 b43_kidx_to_raw(struct b43_wldev *dev, u8 firmware_kidx)
        return raw_kidx;
 }
 
+/* struct b43_private_tx_info - TX info private to b43.
+ * The structure is placed in (struct ieee80211_tx_info *)->rate_driver_data
+ *
+ * @bouncebuffer: DMA Bouncebuffer (if used)
+ */
+struct b43_private_tx_info {
+       void *bouncebuffer;
+};
+
+static inline struct b43_private_tx_info *
+b43_get_priv_tx_info(struct ieee80211_tx_info *info)
+{
+       BUILD_BUG_ON(sizeof(struct b43_private_tx_info) >
+                    sizeof(info->rate_driver_data));
+       return (struct b43_private_tx_info *)info->rate_driver_data;
+}
+
 #endif /* B43_XMIT_H_ */