1 files changed, 11 insertions, 2 deletions

diff --git a/drivers/net/wireless/b43/dma.h b/drivers/net/wireless/b43/dma.h
index f0b0838fb5ba..e607b392314c 100644
--- a/drivers/net/wireless/b43/dma.h
+++ b/drivers/net/wireless/b43/dma.h
@@ -1,7 +1,7 @@
 #ifndef B43_DMA_H_
 #define B43_DMA_H_
 
-#include <linux/ieee80211.h>
+#include <linux/err.h>
 
 #include "b43.h"
 
@@ -157,7 +157,6 @@ struct b43_dmadesc_generic {
 } __attribute__ ((__packed__));
 
 /* Misc DMA constants */
-#define B43_DMA_RINGMEMSIZE             PAGE_SIZE
 #define B43_DMA0_RX_FRAMEOFFSET         30
 
 /* DMA engine tuning knobs */
@@ -165,6 +164,10 @@ struct b43_dmadesc_generic {
 #define B43_RXRING_SLOTS                64
 #define B43_DMA0_RX_BUFFERSIZE          IEEE80211_MAX_FRAME_LEN
 
+/* Pointer poison */
+#define B43_DMA_PTR_POISON              ((void *)ERR_PTR(-ENOMEM))
+#define b43_dma_ptr_is_poisoned(ptr)    (unlikely((ptr) == B43_DMA_PTR_POISON))
+
 
 struct sk_buff;
 struct b43_private;
@@ -243,6 +246,12 @@ struct b43_dmaring {
         /* The QOS priority assigned to this ring. Only used for TX rings.
          * This is the mac80211 "queue" value. */
         u8 queue_prio;
+        /* Pointers and size of the originally allocated and mapped memory
+         * region for the descriptor ring. */
+        void *alloc_descbase;
+        dma_addr_t alloc_dmabase;
+        unsigned int alloc_descsize;
+        /* Pointer to our wireless device. */
         struct b43_wldev *dev;
 #ifdef CONFIG_B43_DEBUG
         /* Maximum number of used slots. */