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

[Ulf Hansson <ulf.hansson@linaro.org>]

On Sat, 21 Aug 2021 at 23:13, Christophe JAILLET
<christophe.jaillet@wanadoo.fr> wrote:
>
> The wrappers in include/linux/pci-dma-compat.h should go away.
>
> The patch has been generated with the coccinelle script below.
> It has been compile tested.
>
> No memory allocation in involved in this patch, so no GFP_ tweak is needed.
>
> @@ @@
> -    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>

Applied for next, thanks!

Kind regards
Uffe


> ---
> If needed, see post from Christoph Hellwig on the kernel-janitors ML:
>    https://marc.info/?l=kernel-janitors&m=158745678307186&w=4
> ---
>  drivers/memstick/host/r592.c    |  5 ++---
>  drivers/memstick/host/tifm_ms.c | 12 ++++++------
>  2 files changed, 8 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c
> index 615a83782e55..7ed984360349 100644
> --- a/drivers/memstick/host/r592.c
> +++ b/drivers/memstick/host/r592.c
> @@ -293,7 +293,7 @@ static int r592_transfer_fifo_dma(struct r592_device *dev)
>
>         /* TODO: hidden assumption about nenth beeing always 1 */
>         sg_count = dma_map_sg(&dev->pci_dev->dev, &dev->req->sg, 1, is_write ?
> -               PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
> +                             DMA_TO_DEVICE : DMA_FROM_DEVICE);
>
>         if (sg_count != 1 || sg_dma_len(&dev->req->sg) < R592_LFIFO_SIZE) {
>                 message("problem in dma_map_sg");
> @@ -310,8 +310,7 @@ static int r592_transfer_fifo_dma(struct r592_device *dev)
>         }
>
>         dma_unmap_sg(&dev->pci_dev->dev, &dev->req->sg, 1, is_write ?
> -               PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
> -
> +                    DMA_TO_DEVICE : DMA_FROM_DEVICE);
>
>         return dev->dma_error;
>  }
> diff --git a/drivers/memstick/host/tifm_ms.c b/drivers/memstick/host/tifm_ms.c
> index 57145374f6ac..c272453670be 100644
> --- a/drivers/memstick/host/tifm_ms.c
> +++ b/drivers/memstick/host/tifm_ms.c
> @@ -279,8 +279,8 @@ static int tifm_ms_issue_cmd(struct tifm_ms *host)
>         if (host->use_dma) {
>                 if (1 != tifm_map_sg(sock, &host->req->sg, 1,
>                                      host->req->data_dir == READ
> -                                    ? PCI_DMA_FROMDEVICE
> -                                    : PCI_DMA_TODEVICE)) {
> +                                    ? DMA_FROM_DEVICE
> +                                    : DMA_TO_DEVICE)) {
>                         host->req->error = -ENOMEM;
>                         return host->req->error;
>                 }
> @@ -350,8 +350,8 @@ static void tifm_ms_complete_cmd(struct tifm_ms *host)
>         if (host->use_dma) {
>                 tifm_unmap_sg(sock, &host->req->sg, 1,
>                               host->req->data_dir == READ
> -                             ? PCI_DMA_FROMDEVICE
> -                             : PCI_DMA_TODEVICE);
> +                             ? DMA_FROM_DEVICE
> +                             : DMA_TO_DEVICE);
>         }
>
>         writel((~TIFM_CTRL_LED) & readl(sock->addr + SOCK_CONTROL),
> @@ -607,8 +607,8 @@ static void tifm_ms_remove(struct tifm_dev *sock)
>                 if (host->use_dma)
>                         tifm_unmap_sg(sock, &host->req->sg, 1,
>                                       host->req->data_dir == READ
> -                                     ? PCI_DMA_TODEVICE
> -                                     : PCI_DMA_FROMDEVICE);
> +                                     ? DMA_TO_DEVICE
> +                                     : DMA_FROM_DEVICE);
>                 host->req->error = -ETIME;
>
>                 do {
> --
> 2.30.2
>