1 files changed, 21 insertions, 15 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index 1a8c1ba538b4..582c88050664 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -21,14 +21,33 @@ static void ar9003_hw_rx_enable(struct ath_hw *hw)
         REG_WRITE(hw, AR_CR, 0);
 }
 
+static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads)
+{
+        int checksum;
+
+        checksum = ads->info + ads->link
+                + ads->data0 + ads->ctl3
+                + ads->data1 + ads->ctl5
+                + ads->data2 + ads->ctl7
+                + ads->data3 + ads->ctl9;
+
+        return ((checksum & 0xffff) + (checksum >> 16)) & AR_TxPtrChkSum;
+}
+
 static void ar9003_hw_set_desc_link(void *ds, u32 ds_link)
 {
-        ((struct ar9003_txc *) ds)->link = ds_link;
+        struct ar9003_txc *ads = ds;
+
+        ads->link = ds_link;
+        ads->ctl10 &= ~AR_TxPtrChkSum;
+        ads->ctl10 |= ar9003_calc_ptr_chksum(ads);
 }
 
 static void ar9003_hw_get_desc_link(void *ds, u32 **ds_link)
 {
-        *ds_link = &((struct ar9003_txc *) ds)->link;
+        struct ar9003_txc *ads = ds;
+
+        *ds_link = &ads->link;
 }
 
 static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
@@ -168,19 +187,6 @@ static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
         return true;
 }
 
-static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads)
-{
-        int checksum;
-
-        checksum = ads->info + ads->link
-                + ads->data0 + ads->ctl3
-                + ads->data1 + ads->ctl5
-                + ads->data2 + ads->ctl7
-                + ads->data3 + ads->ctl9;
-
-        return ((checksum & 0xffff) + (checksum >> 16)) & AR_TxPtrChkSum;
-}
-
 static void ar9003_hw_fill_txdesc(struct ath_hw *ah, void *ds, u32 seglen,
                                   bool is_firstseg, bool is_lastseg,
                                   const void *ds0, dma_addr_t buf_addr,