From 18c7ed138824119f2ef9c9019e222e3e750b42b8 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Wed, 23 May 2018 11:14:44 +0300 Subject: wcn36xx: consider CTRL_EOP bit when looking for valid descriptors In reap_tx_dxes(), when we iterate over the linked descriptors, only consider such valid that have WCN36xx_DXE_CTRL_EOP set. This is what the prima downstream driver is doing as well. Signed-off-by: Daniel Mack Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/wcn36xx/dxe.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/net/wireless/ath/wcn36xx') diff --git a/drivers/net/wireless/ath/wcn36xx/dxe.c b/drivers/net/wireless/ath/wcn36xx/dxe.c index 8c64e05ca3b7..06cfe8d311f3 100644 --- a/drivers/net/wireless/ath/wcn36xx/dxe.c +++ b/drivers/net/wireless/ath/wcn36xx/dxe.c @@ -370,7 +370,9 @@ static void reap_tx_dxes(struct wcn36xx *wcn, struct wcn36xx_dxe_ch *ch) do { if (READ_ONCE(ctl->desc->ctrl) & WCN36xx_DXE_CTRL_VLD) break; - if (ctl->skb) { + + if (ctl->skb && + READ_ONCE(ctl->desc->ctrl) & WCN36xx_DXE_CTRL_EOP) { dma_unmap_single(wcn->dev, ctl->desc->src_addr_l, ctl->skb->len, DMA_TO_DEVICE); info = IEEE80211_SKB_CB(ctl->skb); -- cgit v1.2.3