linux-kernel - Re: [PATCH] virtio: make PCI devices take a virtio

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Message-ID: <49394C1B.2010001@us.ibm.com>
Date:	Fri, 05 Dec 2008 09:43:23 -0600
From:	Anthony Liguori <aliguori@...ibm.com>
To:	Mark McLoughlin <markmc@...hat.com>
CC:	Jiri Slaby <jirislaby@...il.com>, Michael Tokarev <mjt@....msk.ru>,
	Rusty Russell <rusty@...tcorp.com.au>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	kvm <kvm@...r.kernel.org>
Subject: Re: [PATCH] virtio: make PCI devices take a virtio_pci module ref

Mark McLoughlin wrote:
> On Fri, 2008-12-05 at 14:17 +0100, Jiri Slaby wrote:
>   
> +static void virtio_pci_release_dev(struct device *dev)
> +{
> +}
> +
>  /* A PCI device has it's own struct device and so does a virtio device so
>   * we create a place for the virtio devices to show up in sysfs.  I think it
>   * would make more sense for virtio to not insist on having it's own device. */
>  static struct device virtio_pci_root = {
>  	.parent		= NULL,
>  	.bus_id		= "virtio-pci",
> +	.release	= virtio_pci_release_dev,
>  };
>   

Actually, we should be able to delete this virtio_pci_root entirely.  
The device is a dummy one anyway.

Regards,

Anthony Liguori



>  /* Convert a generic virtio device to our structure */
> @@ -328,6 +333,7 @@ static int __devinit virtio_pci_probe(struct pci_dev *pci_dev,
>  		return -ENOMEM;
>
>  	vp_dev->vdev.dev.parent = &virtio_pci_root;
> +	vp_dev->vdev.dev.release = virtio_pci_release_dev;
>  	vp_dev->vdev.config = &virtio_pci_config_ops;
>  	vp_dev->pci_dev = pci_dev;
>  	INIT_LIST_HEAD(&vp_dev->virtqueues);
>   

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