1 files changed, 5 insertions, 1 deletions

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 01edac6c5e18..5075371ab593 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -489,8 +489,12 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
         }
 
         node = acpi_get_node(device->handle);
-        if (node == NUMA_NO_NODE)
+        if (node == NUMA_NO_NODE) {
                 node = x86_pci_root_bus_node(busnum);
+                if (node != 0 && node != NUMA_NO_NODE)
+                        dev_info(&device->dev, FW_BUG "no _PXM; falling back to node %d from hardware (may be inconsistent with ACPI node numbers)\n",
+                                node);
+        }
 
         if (node != NUMA_NO_NODE && !node_online(node))
                 node = NUMA_NO_NODE;