On Tue, 19 Jul 2016 12:50:19 +0200
Paolo Bonzini <[email protected]> wrote:

> People complain about the driver saying there's no valid RAPL domains
> in a VM, and doing so at KERN_ERR severity.  Downgrade this to
> KERN_INFO if running on a hypervisor, since it is basically stating
> the obvious.
> 
> Suggested-by: Peter Zijlstra <[email protected]>
> Cc: Jacob Pan <[email protected]>
> Cc: Andy Lutomirski <[email protected]>
> Signed-off-by: Paolo Bonzini <[email protected]>
> ---
>       First sent out about a year ago. :)
> 
>  drivers/powercap/intel_rapl.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/powercap/intel_rapl.c
> b/drivers/powercap/intel_rapl.c index b2766b867b0e..0a0b09910116
> 100644 --- a/drivers/powercap/intel_rapl.c
> +++ b/drivers/powercap/intel_rapl.c
> @@ -1392,7 +1392,9 @@ static int rapl_detect_domains(struct
> rapl_package *rp, int cpu) }
>       rp->nr_domains = bitmap_weight(&rp->domain_map,
> RAPL_DOMAIN_MAX); if (!rp->nr_domains) {
> -             pr_err("no valid rapl domains found in package
> %d\n", rp->id);
> +             printk("%sNo valid RAPL domains found in package
> %d\n",
> +                    boot_cpu_has(X86_FEATURE_HYPERVISOR) ?
> KERN_INFO : KERN_ERR,
> +                    rp->id);
>               ret = -ENODEV;
>               goto done;
>       }

Looks good to me. Please send to Rafael and linux-pm list as well.

Thanks,

Jacob

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