On Fri, 26 Oct 2007 02:30:52 +0200
Bartlomiej Zolnierkiewicz <[email protected]> wrote:
> On Friday 26 October 2007, Alan Cox wrote:
> > On Fri, 26 Oct 2007 01:36:37 +0200
> > Bartlomiej Zolnierkiewicz <[email protected]> wrote:
> >
> > >
> > > Need to check if the host is a PCI one before reading IDE_ALTSTATUS_REG.
> > >
> > > Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
> >
> > Umm why ? The altstatus register goes back to ST-506 and the original IBM
> > XT hard disk controller card ?
>
> Thought that there have to be some (non-obvious) reason behing the fact that
> IDE_ALTSTATUS_REG reading was covered by #ifdef CONFIG_IDEPCI_SHARE_IRQ.
Only that reading altstatus is done to get the state without clearing the
IRQ which a status read would do.
Alan
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