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ath9k_hw: do not recalculate the descriptor checksum in ar9003_hw_fill_txdesc

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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>
This commit is contained in:
Felix Fietkau 2011-09-14 21:24:20 +02:00 committed by John W. Linville
parent 7a2721a323
commit 60f8cc60fa
1 changed files with 1 additions and 2 deletions
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3
drivers/net/wireless/ath/ath9k/ar9003_mac.c
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@ -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);