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: 38a1390e02b7 Signed-off-by: Rakesh Pillai <[email protected]> --- drivers/net/wireless/ath/ath10k/mac.c | 4 ++-- drivers/net/wireless/ath/ath10k/wmi.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index e49b367..8c6c515 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -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 { diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index ba83740..5a07c7d 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -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) -- 2.7.4
