Messages in this thread Patch in this message | | | From | Jacob Pan <> | Subject | [PATCH 2/2] powercap/rapl: reduce warning level | Date | Mon, 23 May 2016 09:45:43 -0700 |
| |
Since RAPL interface is not architectual, its enumeration depends on poking MSRs instead of using CPUID method.
In KVM guest, RAPL driver probe will fail and emit the following message for every CPU: no valid rapl domains found in package
This patch limit the warning to debug only. Still return ENODEV so that RAPL does not run on KVM guest.
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> --- drivers/powercap/intel_rapl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c index a417e68..b0a2dc4 100644 --- a/drivers/powercap/intel_rapl.c +++ b/drivers/powercap/intel_rapl.c @@ -1324,7 +1324,7 @@ 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; } -- 1.9.1
| |