Re: [Xen-devel] [PATCHv1] x86: rtc_cmos platform device requires legacy irqs

[Thomas Gleixner <tglx@xxxxxxxxxxxxx>]

On Tue, 8 Dec 2015, Boris Ostrovsky wrote:
> On 12/08/2015 04:02 PM, Thomas Gleixner wrote:
> > > > --- a/arch/x86/kernel/rtc.c
> > > > +++ b/arch/x86/kernel/rtc.c
> > > > @@ -200,6 +200,9 @@ static __init int add_rtc_cmos(void)
> > > >         }
> > > >   #endif
> > > >   +     if (xen_pv_domain())
> > > > +               return -ENODEV;
> > > > +
> > > Note there's a missing include that breaks !XEN builds.
> > What's the state of this?
> 
> I think we are waiting for x86 maintainers to express their preference. There
> were 3 proposals to add in add_rtc_cmos()
> 
> 1. if (!nr_legacy_irqs())
>             return -ENODEV;
> 
> 2. #ifdef XEN
>         if (xen_pv_domain())
>                 return -ENODEV;
>     #endif
> 
> 3. if (paravirt_enabled())
>             return -ENODEV;

Either #2 (but with the #ifdefs removed, include the proper header
instead) or #3.

Thanks,

        tglx

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