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 6258f6f24983495ee1e89b215d2ad1fa6eebc021..68e75cb0831b14831848305ec3fec38fd7539134 100644 (file)
--- 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 c4df570f3bbb9392a7d5a085cf88c484cc0b9a3a..8c8b44d62105903791a529d194fe9e22d7725ad7 100644 (file)
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -368,6 +368,8 @@ static inline int pci_channel_offline(struct pci_dev *pdev)
        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) */