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

From: David Vrabel
Date: Fri Dec 04 2015 - 10:24:43 EST


On 04/12/15 14:06, David Vrabel wrote:
> On 03/12/15 10:43, David Vrabel wrote:
>> Adding the rtc platform device when there are no legacy irqs (no
>> legacy PIC) causes a conflict with other devices that end up using the
>> same irq number.
>
> An alternative is to remove the rtc_cmos platform device in Xen PV
> guests.
>
> Any preference on how this regression should be fixed?
>
> David
>
> 8<--------------------------
> x86: Xen PV guests don't have the rtc_cmos platform device
>
[...]
> --- 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.

David
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