Re: 2.5.5[01]]: Xircom Cardbus broken (PCI resource collisions)

From: Valdis.Kletnieks@vt.edu
Date: Fri Dec 13 2002 - 12:18:58 EST


On Fri, 13 Dec 2002 17:33:00 +0100, Petr Konecny <pekon@informatics.muni.cz> said:

> Valdis> I see why the if/continue was added - you don't want to be
> Valdis> calling device_register()/pci_insert_device() if
> Valdis> pci_enable_device() loses. I don't see why 2.5.50 moved the
> Valdis> code up after pci_setup_device(). There's an outside chance
> Valdis> that the concept of moving the call was correct, but that it
> Valdis> should have been moved to between the calls to
> Valdis> pci_assign_resource() and pci_readb(). If that's the case,
> Valdis> then you're correct as well....
> I can confirm that this indeed works. I moved the two lines before
> pci_readb and the card works (every character you now read went through
> it). Who shall submit a patch to Linus ?

The problem is this from the 2.5.50 Changelog that Linus posted:

Dave Jones <davej@suse.de>:
...
  o make cardbus PCI enable earlier

I'm willing to submit a patch, but I think Dave has to make the call whether
it should be backed out entirely, or moved after pci_assign_resource().
I certainly don't understand the code *or* PCI well enough to decide between
those two option...

/Valdis



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