Re: avoiding pci_disable_device()...

[Greg KH <greg@kroah.com>]

On Mon, Feb 14, 2005 at 08:24:29PM +0100, Takashi Iwai wrote:
> At Mon, 14 Feb 2005 11:06:19 -0800,
> Greg KH wrote:
> > 
> > > As a result, I have committed the attached patch to libata-2.6.  In many 
> > > cases, it is a "semantic fix", addressing the case
> > > 
> > > 	* pci_request_regions() indicates hardware is in use
> > > 	* we rudely disable the in-use hardware
> > > 
> > > that would not occur in practice.
> > > 
> > > But better safe than sorry.  Code cuts cut-n-pasted all over the place.
> > > 
> > > I'm hoping one or two things will happen now:
> > > * janitors fix up the other PCI drivers along these lines
> > > * improve the PCI API so that pci_request_regions() is axiomatic
> > 
> > Do you have any suggestions for how to do this?
> 
> How about to add an exclusiveness check in pci_enable_device()?
> Most drivers suppose that the given pci resources are exclusively
> available.

You mean only allow pci_enable_device() to work for the first caller of
it?  I don't see how that would help this issue out.

thanks,

greg k-h