diff --git a/lib/libpmc/libpmc_pmu_util.c b/lib/libpmc/libpmc_pmu_util.c
index 0f9fc0391589..765196ecc8ac 100644
--- a/lib/libpmc/libpmc_pmu_util.c
+++ b/lib/libpmc/libpmc_pmu_util.c
@@ -528,8 +528,7 @@ pmc_pmu_intel_pmcallocate(const char *event_name, struct pmc_op_pmcallocate *pm,
 	    strcasestr(event_name, "uncore") != NULL) {
 		pm->pm_class = PMC_CLASS_UCP;
 		pm->pm_caps |= PMC_CAP_QUALIFIER;
-	} else if ((ped->ped_umask == -1) ||
-	    (ped->ped_event == 0x0 && ped->ped_umask == 0x3)) {
+	} else if (ped->ped_event == 0x0) {
 		pm->pm_class = PMC_CLASS_IAF;
 	} else {
 		pm->pm_class = PMC_CLASS_IAP;
diff --git a/lib/libpmc/pmu-events/jevents.c b/lib/libpmc/pmu-events/jevents.c
index 5a296031451e..ff7d3b226932 100644
--- a/lib/libpmc/pmu-events/jevents.c
+++ b/lib/libpmc/pmu-events/jevents.c
@@ -480,12 +480,14 @@ static struct fixed {
 	const char *name;
 	const char *event;
 } fixed[] = {
+#if 0
 	{ "inst_retired.any", "event=0xc0,period=2000003" },
 	{ "inst_retired.any_p", "event=0xc0,period=2000003" },
 	{ "cpu_clk_unhalted.ref", "event=0x0,umask=0x03,period=2000003" },
 	{ "cpu_clk_unhalted.thread", "event=0x3c,period=2000003" },
 	{ "cpu_clk_unhalted.core", "event=0x3c,period=2000003" },
 	{ "cpu_clk_unhalted.thread_any", "event=0x3c,any=1,period=2000003" },
+#endif
 	{ NULL, NULL},
 };