ath9k: Cleanup buffer status handling

Using a u32 to store a single flag is overkill.
Use a bool to store whether the buffer is stale or not.
Also, use u8 instead of u32 to store the buffer type.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 6 deletions

diff --git a/drivers/net/wireless/ath9k/ath9k.h b/drivers/net/wireless/ath9k/ath9k.h
index 9adc991cb05f..e6c39c1c1a28 100644
--- a/drivers/net/wireless/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath9k/ath9k.h
@@ -74,13 +74,17 @@ struct ath_config {
 /*************************/
 
 #define ATH_TXBUF_RESET(_bf) do {                               \
-                (_bf)->bf_status = 0;                           \
+                (_bf)->bf_stale = false;                        \
                 (_bf)->bf_lastbf = NULL;                        \
                 (_bf)->bf_next = NULL;                          \
                 memset(&((_bf)->bf_state), 0,                   \
                        sizeof(struct ath_buf_state));           \
         } while (0)
 
+#define ATH_RXBUF_RESET(_bf) do {               \
+                (_bf)->bf_stale = false;        \
+        } while (0)
+
 /**
  * enum buffer_type - Buffer type flags
  *
@@ -106,7 +110,7 @@ struct ath_buf_state {
         int bfs_seqno;
         int bfs_tidno;
         int bfs_retries;
-        u32 bf_type;
+        u8 bf_type;
         u32 bfs_keyix;
         enum ath9k_key_type bfs_keytype;
 };
@@ -134,15 +138,12 @@ struct ath_buf {
         struct ath_desc *bf_desc;       /* virtual addr of desc */
         dma_addr_t bf_daddr;            /* physical addr of desc */
         dma_addr_t bf_buf_addr;         /* physical addr of data buffer */
-        u32 bf_status;
+        bool bf_stale;
         u16 bf_flags;
         struct ath_buf_state bf_state;
         dma_addr_t bf_dmacontext;
 };
 
-#define ATH_RXBUF_RESET(_bf)    ((_bf)->bf_status = 0)
-#define ATH_BUFSTATUS_STALE     0x00000002
-
 struct ath_descdma {
         const char *dd_name;
         struct ath_desc *dd_desc;