linux-kernel - Re: [PATCH] Removed some usages of the deprecated "pci-dma-compat.h" KPI

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Date:   Wed, 23 Feb 2022 01:54:54 -0800
From:   Yusuf Khan <yusisamerican@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-pci@...r.kernel.org, tiwai@...e.com, perex@...ex.cz,
        alex.bou9@...il.com, mporter@...nel.crashing.org,
        logang@...tatee.com, kurt.schwemmer@...rosemi.com,
        Bjorn Helgaas <bhelgaas@...gle.com>, kw@...ux.com,
        robh@...nel.org, lorenzo.pieralisi@....com,
        jonathan.derrick@...ux.dev, nirmal.patel@...ux.intel.com
Subject: Re: [PATCH] Removed some usages of the deprecated "pci-dma-compat.h" KPI

See https://lkml.org/lkml/2022/2/23/11 Before you think of this commit!

On Tue, Feb 22, 2022 at 9:15 PM Yusuf Khan <yusisamerican@...il.com> wrote:
>
> The inspiration for this commit comes from Christophe
> JAILLET in [1], you can find reasons for why this was removed
> linked there. This removes the use of the KPI in some pci
> components and rapidio(whatever that is) devices.
>
> [1]: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux
> -next.git/patch/?id=ada3caabaf6135150077c3f729bb06e8f3b5b8f6
>
> Signed-off-by: Yusuf Khan <yusisamerican@...il.com>
> ---
>  drivers/pci/controller/vmd.c     | 1 +
>  drivers/pci/switch/switchtec.c   | 1 +
>  drivers/rapidio/devices/tsi721.c | 8 ++++----
>  sound/pci/asihpi/hpios.c         | 1 +
>  4 files changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c
> index cc166c683638..244dc0f2f71e 100644
> --- a/drivers/pci/controller/vmd.c
> +++ b/drivers/pci/controller/vmd.c
> @@ -17,6 +17,7 @@
>  #include <linux/srcu.h>
>  #include <linux/rculist.h>
>  #include <linux/rcupdate.h>
> +#include <linux/dma-mapping.h>
>
>  #include <asm/irqdomain.h>
>
> diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
> index c36c1238c604..05a876ec1463 100644
> --- a/drivers/pci/switch/switchtec.c
> +++ b/drivers/pci/switch/switchtec.c
> @@ -15,6 +15,7 @@
>  #include <linux/wait.h>
>  #include <linux/io-64-nonatomic-lo-hi.h>
>  #include <linux/nospec.h>
> +#include <linux/dma-mapping.h>
>
>  MODULE_DESCRIPTION("Microsemi Switchtec(tm) PCIe Management Driver");
>  MODULE_VERSION("0.1");
> diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c
> index 4dd31dd9feea..b3134744fb55 100644
> --- a/drivers/rapidio/devices/tsi721.c
> +++ b/drivers/rapidio/devices/tsi721.c
> @@ -2836,17 +2836,17 @@ static int tsi721_probe(struct pci_dev *pdev,
>         }
>
>         /* Configure DMA attributes. */
> -       if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
> -               err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
> +       if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
> +               err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
>                 if (err) {
>                         tsi_err(&pdev->dev, "Unable to set DMA mask");
>                         goto err_unmap_bars;
>                 }
>
> -               if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
> +               if (dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)))
>                         tsi_info(&pdev->dev, "Unable to set consistent DMA mask");
>         } else {
> -               err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
> +               err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
>                 if (err)
>                         tsi_info(&pdev->dev, "Unable to set consistent DMA mask");
>         }
> diff --git a/sound/pci/asihpi/hpios.c b/sound/pci/asihpi/hpios.c
> index 6fe60d13e24b..08757c92aee5 100644
> --- a/sound/pci/asihpi/hpios.c
> +++ b/sound/pci/asihpi/hpios.c
> @@ -10,6 +10,7 @@ HPI Operating System function implementation for Linux
>  (C) Copyright AudioScience Inc. 1997-2003
>  ******************************************************************************/
>  #define SOURCEFILE_NAME "hpios.c"
> +#include <linux/dma-mapping.h>
>  #include "hpi_internal.h"
>  #include "hpidebug.h"
>  #include <linux/delay.h>
> --
> 2.25.1
>