Return-path: Received: from nbd.name ([46.4.11.11]:58736 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757431Ab1INTYd (ORCPT ); Wed, 14 Sep 2011 15:24:33 -0400 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: linville@tuxdriver.com, mcgrof@qca.qualcomm.com Subject: [PATCH 05/12] ath9k_hw: do not recalculate the descriptor checksum in ar9003_hw_fill_txdesc Date: Wed, 14 Sep 2011 21:24:20 +0200 Message-Id: <1316028267-34187-5-git-send-email-nbd@openwrt.org> (sfid-20110914_212450_982385_F648D8AC) In-Reply-To: <1316028267-34187-4-git-send-email-nbd@openwrt.org> References: <1316028267-34187-1-git-send-email-nbd@openwrt.org> <1316028267-34187-2-git-send-email-nbd@openwrt.org> <1316028267-34187-3-git-send-email-nbd@openwrt.org> <1316028267-34187-4-git-send-email-nbd@openwrt.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: Reduces the number of accesses to uncached descriptor memory. Signed-off-by: Felix Fietkau --- drivers/net/wireless/ath/ath9k/ar9003_mac.c | 3 +-- 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 d08ab93..c3179d9 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); -- 1.7.3.2