linux-kernel - Re: [PATCH 1/1] IB/mthca: remove deprecated use of pci api

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Message-ID: <CAL1RGDU7cnR=uszxLiACEc8rLUty2T6Z6bZVx+_YjSzb9WpsZQ@mail.gmail.com>
Date:	Tue, 17 Feb 2015 10:33:30 -0800
From:	Roland Dreier <roland@...nel.org>
To:	Quentin Lambert <lambert.quentin@...il.com>
Cc:	Sean Hefty <sean.hefty@...el.com>,
	Hal Rosenstock <hal.rosenstock@...il.com>,
	"kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] IB/mthca: remove deprecated use of pci api

On Wed, Feb 4, 2015 at 6:09 AM, Quentin Lambert
<lambert.quentin@...il.com> wrote:
> -       dev->eq_table.icm_dma  = pci_map_page(dev->pdev, dev->eq_table.icm_page, 0,
> -                                             PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
> -       if (pci_dma_mapping_error(dev->pdev, dev->eq_table.icm_dma)) {
> +       dev->eq_table.icm_dma  = dma_map_page(&dev->pdev->dev,
> +                                             dev->eq_table.icm_page, 0,
> +                                             PAGE_SIZE,
> +                                             (enum dma_data_direction)PCI_DMA_BIDIRECTIONAL);

Surely this can't be right?  Shouldn't the direction just change to
DMA_BIDIRECTIONAL?

Are we really sweeping through the kernel and getting rid of pci_map_
etc. calls?

If so please respin your semantic patch so that it doesn't add crazy stuff like

    (enum dma_data_direction)PCI_DMA_BIDIRECTIONAL

and resend the change.

Thanks,
  Roland
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