From cca1fe1aedefede896b3ff2cc1a2493fa0d0035c Mon Sep 17 00:00:00 2001
From: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Date: Fri, 29 Jul 2011 17:38:16 +0530
Subject: ath9k_hw: Optimize rx descriptor processing for AR9003
No need to process RxDone and ds_info status again in case
valid rx status is given.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/ath/ath9k/ar9003_mac.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
(limited to 'drivers/net/wireless')
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index 8ff0b88a29b9..1aadc4757e67 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -531,17 +531,18 @@ int ath9k_hw_process_rxdesc_edma(struct ath_hw *ah, struct ath_rx_status *rxs,
/* TODO: byte swap on big endian for ar9300_10 */
- if ((rxsp->status11 & AR_RxDone) == 0)
- return -EINPROGRESS;
+ if (!rxs) {
+ if ((rxsp->status11 & AR_RxDone) == 0)
+ return -EINPROGRESS;
- if (MS(rxsp->ds_info, AR_DescId) != 0x168c)
- return -EINVAL;
+ if (MS(rxsp->ds_info, AR_DescId) != 0x168c)
+ return -EINVAL;
- if ((rxsp->ds_info & (AR_TxRxDesc | AR_CtrlStat)) != 0)
- return -EINPROGRESS;
+ if ((rxsp->ds_info & (AR_TxRxDesc | AR_CtrlStat)) != 0)
+ return -EINPROGRESS;
- if (!rxs)
return 0;
+ }
rxs->rs_status = 0;
rxs->rs_flags = 0;
--
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