Re: [V2 PATCH 3/4] scsi:stex.c Add reboot support

From: Greg Kroah-Hartman
Date: Fri Nov 14 2014 - 20:03:59 EST


On Wed, Nov 12, 2014 at 09:27:50AM -0800, Christoph Hellwig wrote:
> > +static int stex_reboot_callback(struct notifier_block *self,
> > + unsigned long val,
> > + void *data)
> > +{
> > + if (val == SYS_RESTART)
> > + isRestart = 1;
> > + return NOTIFY_OK;
> > +}
> >
> > @@ -1832,7 +1859,14 @@ static void stex_shutdown(struct pci_dev *pdev)
> > {
> > struct st_hba *hba = pci_get_drvdata(pdev);
> >
> > - stex_hba_stop(hba);
> > + if (hba->yellowstone == 1)
> > + stex_hba_stop(hba, ST_IGNORED);
> > + else {
> > + if (isRestart)
> > + stex_hba_stop(hba, ST_S6);
> > + else
> > + stex_hba_stop(hba, ST_S5);
> > + }
>
> This sort of check for reboot vs restart isn't really something
> we want in drivers. I don't really know how we could find this
> out assuming we even want drivers to behave differently.
>
> Maybe Greg or someone on lkml has an idea how to best handle this case.

What is "this case"?

And yes, I agree, we shouldn't care, in drivers, about reboot vs.
restart, as they should both be the same thing, along with "disconnect",
right?

thanks,

greg k-h
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