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-rw-r--r--drivers/pci/probe.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 3d5271a7a849..40259c38d66a 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -897,6 +897,9 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge)
else
pr_info("PCI host bridge to bus %s\n", name);
+ if (nr_node_ids > 1 && pcibus_to_node(bus) == NUMA_NO_NODE)
+ dev_warn(&bus->dev, "Unknown NUMA node; performance will be reduced\n");
+
/* Add initial resources to the bus */
resource_list_for_each_entry_safe(window, n, &resources) {
list_move_tail(&window->node, &bridge->windows);