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54 lines
1.9 KiB
54 lines
1.9 KiB
From: Felix Fietkau <nbd@openwrt.org>
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Date: Tue, 24 Nov 2015 11:33:54 +0100
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Subject: [PATCH] ath10k: stop abusing GFP_DMA
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Allocations from the DMA zone were originally added for legacy ISA
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stuff, or PCI devices that have specific limitations in their DMA
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addressing capabilities. It has no place in ath10k, which can do
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full 32-bit DMA.
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Fixes memory allocation errors on some platforms.
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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---
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--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
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+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
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@@ -536,7 +536,7 @@ int ath10k_htt_rx_alloc(struct ath10k_ht
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size = htt->rx_ring.size * sizeof(htt->rx_ring.paddrs_ring);
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- vaddr = dma_alloc_coherent(htt->ar->dev, size, &paddr, GFP_DMA);
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+ vaddr = dma_alloc_coherent(htt->ar->dev, size, &paddr, GFP_KERNEL);
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if (!vaddr)
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goto err_dma_ring;
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@@ -545,7 +545,7 @@ int ath10k_htt_rx_alloc(struct ath10k_ht
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vaddr = dma_alloc_coherent(htt->ar->dev,
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sizeof(*htt->rx_ring.alloc_idx.vaddr),
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- &paddr, GFP_DMA);
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+ &paddr, GFP_KERNEL);
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if (!vaddr)
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goto err_dma_idx;
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--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
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+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
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@@ -111,7 +111,7 @@ int ath10k_htt_tx_alloc(struct ath10k_ht
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size = htt->max_num_pending_tx * sizeof(struct ath10k_htt_txbuf);
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htt->txbuf.vaddr = dma_alloc_coherent(ar->dev, size,
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&htt->txbuf.paddr,
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- GFP_DMA);
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+ GFP_KERNEL);
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if (!htt->txbuf.vaddr) {
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ath10k_err(ar, "failed to alloc tx buffer\n");
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ret = -ENOMEM;
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@@ -124,7 +124,7 @@ int ath10k_htt_tx_alloc(struct ath10k_ht
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size = htt->max_num_pending_tx * sizeof(struct htt_msdu_ext_desc);
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htt->frag_desc.vaddr = dma_alloc_coherent(ar->dev, size,
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&htt->frag_desc.paddr,
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- GFP_DMA);
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+ GFP_KERNEL);
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if (!htt->frag_desc.vaddr) {
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ath10k_warn(ar, "failed to alloc fragment desc memory\n");
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ret = -ENOMEM;
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