On Wed, 15 Aug 2007 11:35:49 -0500 James Bottomley <[EMAIL PROTECTED]> wrote:
> On Fri, 2007-08-10 at 14:50 -0700, [EMAIL PROTECTED] wrote:
> > From: Gabriel C <[EMAIL PROTECTED]>
> >
> > I get this warnings on current git when CONFIG_PCI is not set :
> >
> > drivers/scsi/fdomain.c:390: warning: 'PCI_dev' defined but not used
> > drivers/scsi/fdomain.c:1768: warning: 'fdomain_pci_tbl' defined but not used
> >
> > Signed-off-by: Gabriel Craciunescu <[EMAIL PROTECTED]>
> > Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
>
> This function looks decidedly dangerous since it references a
> non-existent variable when CONFIG_PCI isn't set. It seems to work
> because pci_dev_put() is defined to a null macro, but it's not safe:
>
> static int fdomain_16x0_release(struct Scsi_Host *shpnt)
> {
> if (shpnt->irq)
> free_irq(shpnt->irq, shpnt);
> if (shpnt->io_port && shpnt->n_io_port)
> release_region(shpnt->io_port, shpnt->n_io_port);
> if (PCI_bus)
> pci_dev_put(PCI_dev);
> return 0;
> }
>
I expect that's why pci_dev_put() is still implemented as a macro.
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