Commit 60f8cc60 authored by Felix Fietkau's avatar Felix Fietkau Committed by John W. Linville
Browse files

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: default avatarFelix Fietkau <nbd@openwrt.org>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 7a2721a3

drivers/net/wireless/ath/ath9k/ar9003_mac.c

+1 −2
Original line number Diff line number Diff line
@@ -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);