ath9k_hw: do not recalculate the descriptor checksum in ar9003_hw_fil…

…l_txdesc Reduces the number of accesses to uncached descriptor memory. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
git-mirror · Sep 16, 2011 · 60f8cc6 · 60f8cc6
1 parent 7a2721a
commit 60f8cc6
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -207,8 +207,7 @@ static void ar9003_hw_fill_txdesc(struct ath_hw *ah, void *ds, u32 seglen,
 	ads->ctl3 &= AR_BufLen;
 
 	/* Fill in pointer checksum and descriptor id */
-	ads->ctl10 = ar9003_calc_ptr_chksum(ads);
-	ads->ctl10 |= (descid << AR_TxDescId_S);
+	ads->ctl10 = (descid << AR_TxDescId_S);
 
 	if (is_firstseg) {
 		ads->ctl12 |= (is_lastseg ? 0 : AR_TxMore);