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From: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
To: <ath12k@lists.infradead.org>
CC: <linux-wireless@vger.kernel.org>,
        Karthikeyan Periyasamy
	<quic_periyasa@quicinc.com>,
        Jeff Johnson <quic_jjohnson@quicinc.com>
Subject: [PATCH v2 1/4] wifi: ath12k: avoid redundant code in Rx cookie conversion init
Date: Tue, 9 Apr 2024 20:44:12 +0530
Message-ID: <20240409151415.1226109-2-quic_periyasa@quicinc.com>
In-Reply-To: <20240409151415.1226109-1-quic_periyasa@quicinc.com>
References: <20240409151415.1226109-1-quic_periyasa@quicinc.com>
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Currently, in the Rx data path cookie conversion initialization procedure,
the primary page table index (ppt_idx) is computed within the secondary
page table iteration. However this is invariant, and hence the ppt_idx
should be calculated outside of the iteration to avoid repeated execution
of the statement.

Found in code review.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00188-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/dp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath12k/dp.c b/drivers/net/wireless/ath/ath12k/dp.c
index a0aa8c571867..796c757c0f58 100644
--- a/drivers/net/wireless/ath/ath12k/dp.c
+++ b/drivers/net/wireless/ath/ath12k/dp.c
@@ -1425,10 +1425,11 @@ static int ath12k_dp_cc_desc_init(struct ath12k_base *ab)
 			}
 
 			tx_spt_page = i + pool_id * ATH12K_TX_SPT_PAGES_PER_POOL;
+			ppt_idx = ATH12K_NUM_RX_SPT_PAGES + tx_spt_page;
+
 			dp->spt_info->txbaddr[tx_spt_page] = &tx_descs[0];
 
 			for (j = 0; j < ATH12K_MAX_SPT_ENTRIES; j++) {
-				ppt_idx = ATH12K_NUM_RX_SPT_PAGES + tx_spt_page;
 				tx_descs[j].desc_id = ath12k_dp_cc_cookie_gen(ppt_idx, j);
 				tx_descs[j].pool_id = pool_id;
 				list_add_tail(&tx_descs[j].list,
-- 
2.34.1