diff --git a/include/linux/pci.h b/include/linux/pci.h
index f5c7cd3..b849861 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1246,6 +1246,8 @@
 
 extern unsigned long pci_cardbus_io_size;
 extern unsigned long pci_cardbus_mem_size;
+extern u8 pci_dfl_cache_line_size;
+extern u8 pci_cache_line_size;
 
 extern unsigned long pci_hotplug_io_size;
 extern unsigned long pci_hotplug_mem_size;