@@ -109,7 +109,7 @@ static void rtw_pci_free_tx_ring_skbs(struct rtw_dev *rtwdev,
tx_data = rtw_pci_get_tx_data(skb);
dma = tx_data->dma;
- pci_unmap_single(pdev, dma, skb->len, PCI_DMA_TODEVICE);
+ dma_unmap_single(&pdev->dev, dma, skb->len, DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
}
}
@@ -125,7 +125,7 @@ static void rtw_pci_free_tx_ring(struct rtw_dev *rtwdev,
rtw_pci_free_tx_ring_skbs(rtwdev, tx_ring);
/* free the ring itself */
- pci_free_consistent(pdev, ring_sz, head, tx_ring->r.dma);
+ dma_free_coherent(&pdev->dev, ring_sz, head, tx_ring->r.dma);
tx_ring->r.head = NULL;
}
@@ -144,7 +144,7 @@ static void rtw_pci_free_rx_ring_skbs(struct rtw_dev *rtwdev,
continue;
dma = *((dma_addr_t *)skb->cb);
- pci_unmap_single(pdev, dma, buf_sz, PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&pdev->dev, dma, buf_sz, DMA_FROM_DEVICE);
dev_kfree_skb(skb);
rx_ring->buf[i] = NULL;
}
@@ -159,7 +159,7 @@ static void rtw_pci_free_rx_ring(struct rtw_dev *rtwdev,
rtw_pci_free_rx_ring_skbs(rtwdev, rx_ring);
- pci_free_consistent(pdev, ring_sz, head, rx_ring->r.dma);
+ dma_free_coherent(&pdev->dev, ring_sz, head, rx_ring->r.dma);
}
static void rtw_pci_free_trx_ring(struct rtw_dev *rtwdev)
@@ -194,7 +194,7 @@ static int rtw_pci_init_tx_ring(struct rtw_dev *rtwdev,
return -EINVAL;
}
- head = pci_zalloc_consistent(pdev, ring_sz, &dma);
+ head = dma_alloc_coherent(&pdev->dev, ring_sz, &dma, GFP_KERNEL);
if (!head) {
rtw_err(rtwdev, "failed to allocate tx ring\n");
return -ENOMEM;
@@ -223,8 +223,8 @@ static int rtw_pci_reset_rx_desc(struct rtw_dev *rtwdev, struct sk_buff *skb,
if (!skb)
return -EINVAL;
- dma = pci_map_single(pdev, skb->data, buf_sz, PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(pdev, dma))
+ dma = dma_map_single(&pdev->dev, skb->data, buf_sz, DMA_FROM_DEVICE);
+ if (dma_mapping_error(&pdev->dev, dma))
return -EBUSY;
*((dma_addr_t *)skb->cb) = dma;
@@ -272,7 +272,7 @@ static int rtw_pci_init_rx_ring(struct rtw_dev *rtwdev,
return -EINVAL;
}
- head = pci_zalloc_consistent(pdev, ring_sz, &dma);
+ head = dma_alloc_coherent(&pdev->dev, ring_sz, &dma, GFP_KERNEL);
if (!head) {
rtw_err(rtwdev, "failed to allocate rx ring\n");
return -ENOMEM;
@@ -311,11 +311,11 @@ static int rtw_pci_init_rx_ring(struct rtw_dev *rtwdev,
if (!skb)
continue;
dma = *((dma_addr_t *)skb->cb);
- pci_unmap_single(pdev, dma, buf_sz, PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&pdev->dev, dma, buf_sz, DMA_FROM_DEVICE);
dev_kfree_skb_any(skb);
rx_ring->buf[i] = NULL;
}
- pci_free_consistent(pdev, ring_sz, head, dma);
+ dma_free_coherent(&pdev->dev, ring_sz, head, dma);
rtw_err(rtwdev, "failed to init rx buffer\n");
@@ -675,8 +675,7 @@ static void rtw_pci_release_rsvd_page(struct rtw_pci *rtwpci,
tx_data = rtw_pci_get_tx_data(prev);
dma = tx_data->dma;
- pci_unmap_single(rtwpci->pdev, dma, prev->len,
- PCI_DMA_TODEVICE);
+ dma_unmap_single(&rtwpci->pdev->dev, dma, prev->len, DMA_TO_DEVICE);
dev_kfree_skb_any(prev);
}
@@ -755,9 +754,9 @@ static int rtw_pci_tx_write_data(struct rtw_dev *rtwdev,
memset(pkt_desc, 0, tx_pkt_desc_sz);
pkt_info->qsel = rtw_pci_get_tx_qsel(skb, queue);
rtw_tx_fill_tx_desc(pkt_info, skb);
- dma = pci_map_single(rtwpci->pdev, skb->data, skb->len,
- PCI_DMA_TODEVICE);
- if (pci_dma_mapping_error(rtwpci->pdev, dma))
+ dma = dma_map_single(&rtwpci->pdev->dev, skb->data, skb->len,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(&rtwpci->pdev->dev, dma))
return -EBUSY;
/* after this we got dma mapped, there is no way back */
@@ -896,8 +895,8 @@ static void rtw_pci_tx_isr(struct rtw_dev *rtwdev, struct rtw_pci *rtwpci,
break;
}
tx_data = rtw_pci_get_tx_data(skb);
- pci_unmap_single(rtwpci->pdev, tx_data->dma, skb->len,
- PCI_DMA_TODEVICE);
+ dma_unmap_single(&rtwpci->pdev->dev, tx_data->dma, skb->len,
+ DMA_TO_DEVICE);
/* just free command packets from host to card */
if (hw_queue == RTW_TX_QUEUE_H2C) {
The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'rtw_pci_init_tx_ring()' and 'rtw_pci_init_rx_ring()' GFP_KERNEL can be used because both functions are called from a probe function and no spinlock is taken. The call chain is: rtw_pci_probe --> rtw_pci_setup_resource --> rtw_pci_init --> rtw_pci_init_trx_ring --> rtw_pci_init_tx_ring --> rtw_pci_init_rx_ring @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> --- If needed, see post from Christoph Hellwig on the kernel-janitors ML: https://marc.info/?l=kernel-janitors&m=158745678307186&w=4 --- drivers/net/wireless/realtek/rtw88/pci.c | 33 ++++++++++++------------ 1 file changed, 16 insertions(+), 17 deletions(-)