Re: [PATCH 3/7] PCI PM: Fix saving of device state in pci_legacy_suspend

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On Wed, 2009-02-04 at 13:56 -0800, Linus Torvalds wrote:
> 
> On Thu, 5 Feb 2009, Benjamin Herrenschmidt wrote:
> > 
> > How so ? I've had such backtraces with no other info in my log...
> 
> _with_ that patch?
> 
> It very much replaces a warning with no further info with
> 
> +                       WARN_ONCE(pci_dev->current_state != prev,
> +                               "PCI PM: Device state not saved by %pF\n",
> +                               drv->suspend);
> 
> And notice the "%pF" and the 'drv->suspend': it should tell you exactly 
> which suspend routine it was that messed up.

Yup, missed that change in the patch. In fact, I even missed the
existence of a WARN_ONCE that takes those text arguments... baaaah. I
suppose I should try to read more of lkml :-)

Cheers,
Ben.


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