6.10-stable review patch. If anyone has any objections, please let me know.
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From: Baochen Qiang quic_bqiang@quicinc.com
[ Upstream commit 0ae570703754858a77cc42b3c9fff42e9f084608 ]
Base address of CE ring is defined as u32, currently this works because DMA mask configured as 32 bit:
#define ATH12K_PCI_DMA_MASK 32
However this mask could be changed once firmware bugs are fixed to fully support 36 bit DMA addressing. So to protect against any future changes to the DMA mask, change the type of the fields that are dependent upon it.
This is found during code review. Compile tested only.
Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices") Signed-off-by: Baochen Qiang quic_bqiang@quicinc.com Acked-by: Jeff Johnson quic_jjohnson@quicinc.com Signed-off-by: Kalle Valo quic_kvalo@quicinc.com Link: https://msgid.link/20240524024021.37711-1-quic_bqiang@quicinc.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath12k/ce.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/ath/ath12k/ce.h b/drivers/net/wireless/ath/ath12k/ce.h index 79af3b6159f1c..857bc5f9e946a 100644 --- a/drivers/net/wireless/ath/ath12k/ce.h +++ b/drivers/net/wireless/ath/ath12k/ce.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: BSD-3-Clause-Clear */ /* * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved. - * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2021-2022, 2024 Qualcomm Innovation Center, Inc. All rights reserved. */
#ifndef ATH12K_CE_H @@ -119,7 +119,7 @@ struct ath12k_ce_ring { /* Host address space */ void *base_addr_owner_space_unaligned; /* CE address space */ - u32 base_addr_ce_space_unaligned; + dma_addr_t base_addr_ce_space_unaligned;
/* Actual start of descriptors. * Aligned to descriptor-size boundary. @@ -129,7 +129,7 @@ struct ath12k_ce_ring { void *base_addr_owner_space;
/* CE address space */ - u32 base_addr_ce_space; + dma_addr_t base_addr_ce_space;
/* HAL ring id */ u32 hal_ring_id;