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powercap / RAPL: reduce message loglevel

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Since the RAPL interface is not architectual, its enumeration depends
on poking MSRs instead of using the CPUID method.

In KVM guests, the RAPL driver probe will fail and emit the following
message for every CPU: "no valid rapl domains found in package"

This patch converts the warning to a debug message only (still return
-ENODEV so that RAPL does not run in KVM guests).

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
[ rjw: Subject & changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Jacob Pan 2016-05-23 09:45:43 -07:00 committed by Rafael J. Wysocki
parent 1a695a905c
commit e1a27e87a3
1 changed files with 1 additions and 1 deletions
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2
drivers/powercap/intel_rapl.c
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@ -1392,7 +1392,7 @@ 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);
pr_debug("no valid rapl domains found in package %d\n", rp->id);
ret = -ENODEV;
goto done;
}