From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jacob Pan Subject: Re: [PATCH resend] intel_rapl: downgrade message if no RAPL domains found in a VM Date: Tue, 19 Jul 2016 05:27:59 -0700 Message-ID: <20160719052759.3de2d31f@jacob-builder> References: <1468928997-20431-1-git-send-email-pbonzini@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1468928997-20431-1-git-send-email-pbonzini@redhat.com> Sender: linux-kernel-owner@vger.kernel.org To: Paolo Bonzini Cc: linux-kernel@vger.kernel.org, Thomas Renninger , Peter Zijlstra , rjw@rjwysocki.net, linux-pm@vger.kernel.org, Andy Lutomirski , jacob.jun.pan@linux.intel.com List-Id: linux-pm@vger.kernel.org On Tue, 19 Jul 2016 13:49:57 +0200 Paolo Bonzini 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. > Acked-by: Jacob Pan > Suggested-by: Peter Zijlstra > Cc: Jacob Pan > Cc: Andy Lutomirski > Signed-off-by: Paolo Bonzini > --- > 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; > }