linux-kernel - Re: [PATCH 10/13] pci: export pci_user functions for use by other drivers

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Message-ID: <CAErSpo6-Oy6eTgUBNRfM3HwFSLpDXJt3K1N0DKFpyYsNiSxwRQ@mail.gmail.com>
Date:	Mon, 14 May 2012 15:20:40 -0600
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	Alex Williamson <alex.williamson@...hat.com>
Cc:	benh@...nel.crashing.org, aik@...abs.ru,
	david@...son.dropbear.id.au, joerg.roedel@....com,
	dwmw2@...radead.org, chrisw@...s-sol.org, agraf@...e.de,
	benve@...co.com, aafabbri@...co.com, B08248@...escale.com,
	B07421@...escale.com, avi@...hat.com, konrad.wilk@...cle.com,
	kvm@...r.kernel.org, qemu-devel@...gnu.org,
	iommu@...ts.linux-foundation.org, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org
Subject: Re: [PATCH 10/13] pci: export pci_user functions for use by other drivers

> diff --git a/include/linux/pci.h b/include/linux/pci.h
> index dc25da3..b437225 100644
> --- a/include/linux/pci.h
> +++ b/include/linux/pci.h
> @@ -770,6 +770,14 @@ static inline int pci_write_config_dword(const struct pci_dev *dev, int where,
>        return pci_bus_write_config_dword(dev->bus, dev->devfn, where, val);
>  }
>
> +/* user-space driven config access */
> +extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
> +extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
> +extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val);
> +extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val);
> +extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
> +extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);

If you repost this, can you remove the externs when you move these
declarations?  I know the file's currently a random mix, but we might
as well make a tiny improvement.

Looks fine to me otherwise, and if you don't have any other reason to
update this series, don't worry about it.

Acked-by: Bjorn Helgaas <bhelgaas@...gle.com>

>  int __must_check pci_enable_device(struct pci_dev *dev);
>  int __must_check pci_enable_device_io(struct pci_dev *dev);
>  int __must_check pci_enable_device_mem(struct pci_dev *dev);
>
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