summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath
diff options
context:
space:
mode:
authorFelix Fietkau <nbd@openwrt.org>2011-09-14 21:24:20 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-09-16 22:45:39 +0200
commit60f8cc60fa41b8c44662a3a4d99862e3b81cfa6f (patch)
treeb8494ca93fd0fbb6ba49a27a103626efdb18fd05 /drivers/net/wireless/ath
parentath9k: call ath9k_hw_set_desc_link for beacon descriptors (diff)
downloadlinux-60f8cc60fa41b8c44662a3a4d99862e3b81cfa6f.tar.xz
linux-60f8cc60fa41b8c44662a3a4d99862e3b81cfa6f.zip
ath9k_hw: do not recalculate the descriptor checksum in ar9003_hw_fill_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>
Diffstat (limited to 'drivers/net/wireless/ath')
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_mac.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index d08ab930e430..c3179d9bdc38 100644
--- 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);