diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
index d98fac5676846..24372cf7fdfbb 100644
--- a/arch/x86/events/intel/uncore.c
+++ b/arch/x86/events/intel/uncore.c
@@ -745,7 +745,7 @@ static int uncore_pmu_event_init(struct perf_event *event)
 
 	pmu = uncore_event_to_pmu(event);
 	/* no device found for this pmu */
-	if (pmu->func_id < 0)
+	if (!pmu->registered)
 		return -ENOENT;
 
 	/* Sampling not supported yet */
@@ -992,7 +992,7 @@ static void uncore_types_exit(struct intel_uncore_type **types)
 		uncore_type_exit(*types);
 }
 
-static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
+static int __init uncore_type_init(struct intel_uncore_type *type)
 {
 	struct intel_uncore_pmu *pmus;
 	size_t size;
@@ -1005,7 +1005,6 @@ static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
 	size = uncore_max_dies() * sizeof(struct intel_uncore_box *);
 
 	for (i = 0; i < type->num_boxes; i++) {
-		pmus[i].func_id	= setid ? i : -1;
 		pmus[i].pmu_idx	= i;
 		pmus[i].type	= type;
 		pmus[i].boxes	= kzalloc(size, GFP_KERNEL);
@@ -1055,12 +1054,12 @@ static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
 }
 
 static int __init
-uncore_types_init(struct intel_uncore_type **types, bool setid)
+uncore_types_init(struct intel_uncore_type **types)
 {
 	int ret;
 
 	for (; *types; types++) {
-		ret = uncore_type_init(*types, setid);
+		ret = uncore_type_init(*types);
 		if (ret)
 			return ret;
 	}
@@ -1160,11 +1159,6 @@ static int uncore_pci_pmu_register(struct pci_dev *pdev,
 	if (!box)
 		return -ENOMEM;
 
-	if (pmu->func_id < 0)
-		pmu->func_id = pdev->devfn;
-	else
-		WARN_ON_ONCE(pmu->func_id != pdev->devfn);
-
 	atomic_inc(&box->refcnt);
 	box->dieid = die;
 	box->pci_dev = pdev;
@@ -1410,7 +1404,7 @@ static int __init uncore_pci_init(void)
 		goto err;
 	}
 
-	ret = uncore_types_init(uncore_pci_uncores, false);
+	ret = uncore_types_init(uncore_pci_uncores);
 	if (ret)
 		goto errtype;
 
@@ -1678,7 +1672,7 @@ static int __init uncore_cpu_init(void)
 {
 	int ret;
 
-	ret = uncore_types_init(uncore_msr_uncores, true);
+	ret = uncore_types_init(uncore_msr_uncores);
 	if (ret)
 		goto err;
 
@@ -1697,7 +1691,7 @@ static int __init uncore_mmio_init(void)
 	struct intel_uncore_type **types = uncore_mmio_uncores;
 	int ret;
 
-	ret = uncore_types_init(types, true);
+	ret = uncore_types_init(types);
 	if (ret)
 		goto err;
 
diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h
index 79ff32e13dcc8..3dcb88c0ecfa3 100644
--- a/arch/x86/events/intel/uncore.h
+++ b/arch/x86/events/intel/uncore.h
@@ -125,7 +125,6 @@ struct intel_uncore_pmu {
 	struct pmu			pmu;
 	char				name[UNCORE_PMU_NAME_LEN];
 	int				pmu_idx;
-	int				func_id;
 	bool				registered;
 	atomic_t			activeboxes;
 	cpumask_t			cpu_mask;
diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c
index 3934e1e4e3b16..edb7fd50efe02 100644
--- a/arch/x86/events/intel/uncore_snb.c
+++ b/arch/x86/events/intel/uncore_snb.c
@@ -910,7 +910,7 @@ static int snb_uncore_imc_event_init(struct perf_event *event)
 
 	pmu = uncore_event_to_pmu(event);
 	/* no device found for this pmu */
-	if (pmu->func_id < 0)
+	if (!pmu->registered)
 		return -ENOENT;
 
 	/* Sampling not supported yet */