From bafdbd79aae4c91f38caa43e5fb7abfd911f5bf6 Mon Sep 17 00:00:00 2001 From: Vasanthakumar Thiagarajan Date: Thu, 15 Oct 2020 12:17:34 +0530 Subject: ath11k: Remove unnecessary data sync to cpu on monitor buffer Monitor ring Rx buffer is not really modified between dma map and unmap. So remove the unnecssary data sync before dma unmap. This does not fix any visible issue, found in code review. Compile tested only. Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1602744454-22969-1-git-send-email-vthiagar@codeaurora.org --- drivers/net/wireless/ath/ath11k/dp_rx.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c index 571722baa0b3..d23b152ddcdd 100644 --- a/drivers/net/wireless/ath/ath11k/dp_rx.c +++ b/drivers/net/wireless/ath/ath11k/dp_rx.c @@ -2856,10 +2856,6 @@ static int ath11k_dp_rx_reap_mon_status_ring(struct ath11k_base *ab, int mac_id, rxcb = ATH11K_SKB_RXCB(skb); - dma_sync_single_for_cpu(ab->dev, rxcb->paddr, - skb->len + skb_tailroom(skb), - DMA_FROM_DEVICE); - dma_unmap_single(ab->dev, rxcb->paddr, skb->len + skb_tailroom(skb), DMA_BIDIRECTIONAL); -- cgit v1.2.3