Re: [PATCH] PCI legacy resource fix

From: Ben Collins
Date: Sat Dec 09 2006 - 10:52:49 EST


On Sat, 2006-12-09 at 13:14 +0000, Alan wrote:
> On Sat, 09 Dec 2006 03:12:11 -0500
> Ben Collins <ben.collins@xxxxxxxxxx> wrote:
> > My controller is in legacy mode, however, it never gets to here because
> > of this call, just before this block of code:
> >
> > rc = pci_request_regions(pdev, DRV_NAME);
> > if (rc) {
> > disable_dev_on_err = 0;
> > goto err_out;
> > }
>
> Then you don't have the fix applied that was posted. That code is not
> present in the form you pasted in the fixed version of the libata code.
> It is within an if (!legacy_mode)

I didn't see that patch until you mentioned it. Even still, there seems
to be one thing missing. I suspect you still want to take the bmdma
resource since both native and legacy use it. With the patch you
mentioned, that resource wont be requested in legacy mode.

Also, I did my patch as detailed as it is because of this line:

/* TODO: What if one channel is in native mode ... */

If that's never going to be the case then the comment should go. If it
is possible, then my patch makes this work. The way things are now, it
will ignore a native mode port if it is sitting on the same controller
as a legacy mode one.

Want to re-evaluate the patch based on this info?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/