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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>
This commit is contained in:
Rajkumar Manoharan 2011-07-29 17:38:16 +05:30 committed by John W. Linville
parent 0f9dc29821
commit cca1fe1aed
1 changed files with 8 additions and 7 deletions
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15
drivers/net/wireless/ath/ath9k/ar9003_mac.c
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@ -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;