linux-kernel - Re: [PATCH] fakephp: Allocate PCI resources before adding the device

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Date:	Tue, 25 Nov 2008 20:46:37 -0800 (PST)
From:	Trent Piepho <xyzzy@...akeasy.org>
To:	"Darrick J. Wong" <djwong@...ibm.com>
cc:	Greg K-H <greg@...ah.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] fakephp: Allocate PCI resources before adding the device

On Tue, 25 Nov 2008, Darrick J. Wong wrote:
> For PCI devices, pci_bus_assign_resources() must be called to set up the
> pci_device->resource array before pci_bus_add_devices() can be called, else
> attempts to load drivers results in BAR collision errors where there are none.

I've had a patch to fakephp that did something like this for a while, but I
called pci_bus_assign_resources() _after_ adding the devices with calls to
pci_bus_add_device().  It seems like that might be easier, to just add all
the devices and then call pci_bus_assign_resources() when done.  It appears
to work fine for me.  Is there a reason this is wrong?
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