Re: [PATCH] rtl818x_pci: switch from 'pci_' to 'dma_' API

From: Kalle Valo
Date: Tue Sep 01 2020 - 05:34:43 EST


Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> wrote:

> 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 'rtl8180_init_rx_ring()' and
> 'rtl8180_init_tx_ring()' GFP_KERNEL can be used because both functions are
> called from 'rtl8180_start()', which is a .start function (see struct
> ieee80211_ops)
> .start function can sleep, as explicitly stated in include/net/mac80211.h.
>
>
> @@
> @@
> - 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@xxxxxxxxxx>

Patch applied to wireless-drivers-next.git, thanks.

f4ce4bf6687f rtl818x_pci: switch from 'pci_' to 'dma_' API

--
https://patchwork.kernel.org/patch/11725047/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches