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75 lines
2.7 KiB
Diff
75 lines
2.7 KiB
Diff
From 31aeaf547d7e3b64ba5d5442dabc530bdb9e216e Mon Sep 17 00:00:00 2001
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From: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
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Date: Wed, 10 Nov 2021 21:51:30 +0530
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Subject: [PATCH] ath11k: fix DMA memory free in CE pipe cleanup
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In CE pipe cleanup, DMA memory gets freed by the aligned address
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(base_addr_owner_space) which is wrong. It needs to be freed
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by the address (base_addr_owner_space_unaligned) returned by
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dma_alloc. So free the dma memory by the proper address.
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This was found in code review.
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Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-00729-QCAHKSWPL_SILICONZ-3 v2
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Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Link: https://lore.kernel.org/r/1636561290-18966-1-git-send-email-quic_periyasa@quicinc.com
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---
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drivers/net/wireless/ath/ath11k/ce.c | 16 ++++++++++------
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1 file changed, 10 insertions(+), 6 deletions(-)
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--- a/drivers/net/wireless/ath/ath11k/ce.c
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+++ b/drivers/net/wireless/ath/ath11k/ce.c
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@@ -953,6 +953,7 @@ int ath11k_ce_init_pipes(struct ath11k_b
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void ath11k_ce_free_pipes(struct ath11k_base *ab)
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{
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struct ath11k_ce_pipe *pipe;
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+ struct ath11k_ce_ring *ce_ring;
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int desc_sz;
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int i;
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@@ -964,22 +965,24 @@ void ath11k_ce_free_pipes(struct ath11k_
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if (pipe->src_ring) {
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desc_sz = ath11k_hal_ce_get_desc_size(HAL_CE_DESC_SRC);
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+ ce_ring = pipe->src_ring;
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dma_free_coherent(ab->dev,
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pipe->src_ring->nentries * desc_sz +
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CE_DESC_RING_ALIGN,
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- pipe->src_ring->base_addr_owner_space,
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- pipe->src_ring->base_addr_ce_space);
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+ ce_ring->base_addr_owner_space_unaligned,
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+ ce_ring->base_addr_ce_space_unaligned);
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kfree(pipe->src_ring);
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pipe->src_ring = NULL;
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}
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if (pipe->dest_ring) {
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desc_sz = ath11k_hal_ce_get_desc_size(HAL_CE_DESC_DST);
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+ ce_ring = pipe->dest_ring;
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dma_free_coherent(ab->dev,
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pipe->dest_ring->nentries * desc_sz +
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CE_DESC_RING_ALIGN,
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- pipe->dest_ring->base_addr_owner_space,
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- pipe->dest_ring->base_addr_ce_space);
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+ ce_ring->base_addr_owner_space_unaligned,
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+ ce_ring->base_addr_ce_space_unaligned);
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kfree(pipe->dest_ring);
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pipe->dest_ring = NULL;
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}
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@@ -987,11 +990,12 @@ void ath11k_ce_free_pipes(struct ath11k_
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if (pipe->status_ring) {
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desc_sz =
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ath11k_hal_ce_get_desc_size(HAL_CE_DESC_DST_STATUS);
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+ ce_ring = pipe->status_ring;
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dma_free_coherent(ab->dev,
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pipe->status_ring->nentries * desc_sz +
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CE_DESC_RING_ALIGN,
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- pipe->status_ring->base_addr_owner_space,
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- pipe->status_ring->base_addr_ce_space);
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+ ce_ring->base_addr_owner_space_unaligned,
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+ ce_ring->base_addr_ce_space_unaligned);
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kfree(pipe->status_ring);
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pipe->status_ring = NULL;
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}
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