PCI: add default busn_resource
We need to put into the resources list for legacy system.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 6258f6f..68e75cb 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -16,6 +16,13 @@
#define CARDBUS_LATENCY_TIMER 176 /* secondary latency timer */
#define CARDBUS_RESERVE_BUSNR 3
+struct resource busn_resource = {
+ .name = "PCI busn",
+ .start = 0,
+ .end = 255,
+ .flags = IORESOURCE_BUS,
+};
+
/* Ugh. Need to stop exporting this to modules. */
LIST_HEAD(pci_root_buses);
EXPORT_SYMBOL(pci_root_buses);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index c4df570..8c8b44d 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -368,6 +368,8 @@
return (pdev->error_state != pci_channel_io_normal);
}
+extern struct resource busn_resource;
+
struct pci_host_bridge_window {
struct list_head list;
struct resource *res; /* host bridge aperture (CPU address) */