powercap / RAPL: change domain detection message

Many CPUs do not support complete set of RAPL domains, as a
result this detection failed message is very misleading and
can be annoying.

 [    5.082632] intel_rapl: RAPL domain core detection failed
 [    5.088370] intel_rapl: RAPL domain uncore detection failed

So lower the warning message to info and only print out the RAPL
domains that are supported.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index a362dcc20ec0..45e05b32f9b6 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -1167,11 +1167,10 @@ static int rapl_detect_domains(struct rapl_package *rp, int cpu)
 
         for (i = 0; i < RAPL_DOMAIN_MAX; i++) {
                 /* use physical package id to read counters */
-                if (!rapl_check_domain(cpu, i))
+                if (!rapl_check_domain(cpu, i)) {
                         rp->domain_map |= 1 << i;
-                else
-                        pr_warn("RAPL domain %s detection failed\n",
-                                rapl_domain_names[i]);
+                        pr_info("Found RAPL domain %s\n", rapl_domain_names[i]);
+                }
         }
         rp->nr_domains = bitmap_weight(&rp->domain_map, RAPL_DOMAIN_MAX);
         if (!rp->nr_domains) {