diff --git a/kernel/resource.c b/kernel/resource.c
index e3e78f4a01c67206aeaa46889318e5735db5d477..50289d7116db0e3d8626b0f7411f94dd39bb2cd9 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -1123,6 +1123,15 @@ struct resource * __request_region(struct resource *parent,
 		conflict = __request_resource(parent, res);
 		if (!conflict)
 			break;
+		/*
+		 * mm/hmm.c reserves physical addresses which then
+		 * become unavailable to other users.  Conflicts are
+		 * not expected.  Warn to aid debugging if encountered.
+		 */
+		if (conflict->desc == IORES_DESC_DEVICE_PRIVATE_MEMORY) {
+			pr_warn("Unaddressable device %s %pR conflicts with %pR",
+				conflict->name, conflict, res);
+		}
 		if (conflict != parent) {
 			if (!(conflict->flags & IORESOURCE_BUSY)) {
 				parent = conflict;
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index af67355622159bf00310801ef70d5b951b9e3ae3..ccd73a15b7b0d4a595f18bf1f9261ffb5add5572 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -111,11 +111,6 @@ static struct resource *register_memory_resource(u64 start, u64 size)
 	res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
 	conflict =  request_resource_conflict(&iomem_resource, res);
 	if (conflict) {
-		if (conflict->desc == IORES_DESC_DEVICE_PRIVATE_MEMORY) {
-			pr_debug("Device unaddressable memory block "
-				 "memory hotplug at %#010llx !\n",
-				 (unsigned long long)start);
-		}
 		pr_debug("System RAM resource %pR cannot be added\n", res);
 		kfree(res);
 		return ERR_PTR(-EEXIST);