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-rw-r--r--include/linux/pci.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 038a0dc7273..768b93359f9 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -685,13 +685,16 @@ extern void pci_unblock_user_cfg_access(struct pci_dev *dev);
* a PCI domain is defined to be a set of PCI busses which share
* configuration space.
*/
-#ifndef CONFIG_PCI_DOMAINS
+#ifdef CONFIG_PCI_DOMAINS
+extern int pci_domains_supported;
+#else
+enum { pci_domains_supported = 0 };
static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
static inline int pci_proc_domain(struct pci_bus *bus)
{
return 0;
}
-#endif
+#endif /* CONFIG_PCI_DOMAINS */
#else /* CONFIG_PCI is not enabled */