From: Greg KH <greg@kroah.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] PCI fixes for 2.6.9
Date: Fri, 22 Oct 2004 16:45:08 -0700 [thread overview]
Message-ID: <20041022234508.GA28380@kroah.com> (raw)
In-Reply-To: <20041020091045.D1047@flint.arm.linux.org.uk>
On Wed, Oct 20, 2004 at 09:10:45AM +0100, Russell King wrote:
> On Tue, Oct 19, 2004 at 03:42:15PM -0700, Greg KH wrote:
> > ChangeSet 1.1997.37.29, 2004/10/06 12:50:32-07:00, kaneshige.kenji@jp.fujitsu.com
> >
> > [PATCH] PCI: warn of missing pci_disable_device()
> >
> > As mentioned in Documentaion/pci.txt, pci device driver should call
> > pci_disable_device() when it decides to stop using the device. But
> > there are some drivers that don't use pci_disable_device() so far.
>
> No. This is wrong. There are some classes of devices, notably
> PCMCIA Cardbus drivers where buggy BIOS means this should _NOT_
> be done.
But what happens if you reload that driver and try to enable the device?
Does that "just work" somehow on this kind of hardware?
> There are BIOSen out there which refuse to suspend/resume if the
> Cardbus bridge is disabled.
>
> It's not that the driver is buggy. It's that the driver has far
> more information than the PCI layer could ever have.
Ugh, I hate broken hardware. I'll revert this in my next round of pci
changes (sometime next week.)
thanks,
greg k-h
next prev parent reply other threads:[~2004-10-22 23:51 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-19 22:37 [BK PATCH] PCI fixes for 2.6.9 Greg KH
2004-10-19 22:42 ` [PATCH] " Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-19 22:42 ` Greg KH
2004-10-20 8:10 ` Russell King
2004-10-22 23:45 ` Greg KH [this message]
2004-10-24 16:47 ` Alan Cox
2004-11-20 18:45 ` Russell King
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