diff mbox series

[10/12] ath11k: avoid while loop in ring selection of tx completion interrupt

Message ID 20210615211407.92233-11-jouni@codeaurora.org (mailing list archive)
State Changes Requested
Delegated to: Kalle Valo
Headers show
Series ath11k: optimizations in data path | expand

Commit Message

Jouni Malinen June 15, 2021, 9:14 p.m. UTC 
From: P Praneesh <ppranees@codeaurora.org>

Currently while loop is used to find the tx completion ring number and
it is not required since the tx ring mask and the group id can be combined
to directly fetch the ring number. Hence remove the while loop
and directly get the ring number from tx mask and group id.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1 v2

Co-developed-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: P Praneesh <ppranees@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/dp.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/ath/ath11k/dp.c b/drivers/net/wireless/ath/ath11k/dp.c
index 1fef71c8edaf..a63a6fa24f9d 100644
--- a/drivers/net/wireless/ath/ath11k/dp.c
+++ b/drivers/net/wireless/ath/ath11k/dp.c
@@ -767,13 +767,12 @@  int ath11k_dp_service_srng(struct ath11k_base *ab,
 	struct napi_struct *napi = &irq_grp->napi;
 	int grp_id = irq_grp->grp_id;
 	int work_done = 0;
-	int i = 0, j;
+	int i, j;
 	int tot_work_done = 0;
 
-	while (ab->hw_params.ring_mask->tx[grp_id] >> i) {
-		if (ab->hw_params.ring_mask->tx[grp_id] & BIT(i))
-			ath11k_dp_tx_completion_handler(ab, i);
-		i++;
+	if (ab->hw_params.ring_mask->tx[grp_id]) {
+		i = __fls(ab->hw_params.ring_mask->tx[grp_id]);
+		ath11k_dp_tx_completion_handler(ab, i);
 	}
 
 	if (ab->hw_params.ring_mask->rx_err[grp_id]) {