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ath10k: fix dma unmap direction for management frames

Forráskód böngészése 
The management frames transmitted are dma mapped with
direction TO_DEVICE, but incorrectly mapped with
direction FROM_DEVICE during tx complete and error cases.

Fix the direction of dma during dma unmap of the
transmitted management frames.

Tested HW: WCN3990
Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1

Fixes: 38a1390e02 ("ath10k: dma unmap mgmt tx buffer if wmi cmd send fails")
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Rakesh Pillai
2019-01-25 09:51:06 +05:30
committed by Kalle Valo
szülő 5432713344
commit 6e8a8991e2
2 fájl változott, egészen pontosan 4 új sor hozzáadva és 4 régi sor törölve
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4
drivers/net/wireless/ath/ath10k/mac.c
Fájl megtekintése

@@ -1,7 +1,7 @@
/*
* Copyright (c) 2005-2011 Atheros Communications Inc.
* Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
* Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@@ -3863,7 +3863,7 @@ void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work)
ath10k_warn(ar, "failed to transmit management frame by ref via WMI: %d\n",
ret);
dma_unmap_single(ar->dev, paddr, skb->len,
DMA_FROM_DEVICE);
DMA_TO_DEVICE);
ieee80211_free_txskb(ar->hw, skb);
}
} else {

4
drivers/net/wireless/ath/ath10k/wmi.c
Fájl megtekintése

@@ -1,7 +1,7 @@
/*
* Copyright (c) 2005-2011 Atheros Communications Inc.
* Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
* Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@@ -2346,7 +2346,7 @@ static int wmi_process_mgmt_tx_comp(struct ath10k *ar, u32 desc_id,
msdu = pkt_addr->vaddr;
dma_unmap_single(ar->dev, pkt_addr->paddr,
msdu->len, DMA_FROM_DEVICE);
msdu->len, DMA_TO_DEVICE);
info = IEEE80211_SKB_CB(msdu);
if (status)