Re: avoiding pci_disable_device()...

[Takashi Iwai]

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.


Takashi
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