Commit 18c7ed13 authored May 23, 2018 by Daniel Mack Committed by Kalle Valo May 25, 2018

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 <daniel@zonque.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

parent ce1d4be8

drivers/net/wireless/ath/wcn36xx/dxe.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -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);

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