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-rw-r--r--drivers/pci/pci-driver.c44
-rw-r--r--drivers/pci/pcie/Makefile2
-rw-r--r--drivers/pci/pcie/portdrv_bus.c55
-rw-r--r--drivers/pci/pcie/portdrv_pci.c13
4 files changed, 45 insertions, 69 deletions
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 646da0d2d7a8..21eb2f7ad95d 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -19,6 +19,7 @@
#include <linux/suspend.h>
#include <linux/kexec.h>
#include "pci.h"
+#include "pcie/portdrv.h"
struct pci_dynid {
struct list_head node;
@@ -1552,8 +1553,49 @@ struct bus_type pci_bus_type = {
};
EXPORT_SYMBOL(pci_bus_type);
+#ifdef CONFIG_PCIEPORTBUS
+static int pcie_port_bus_match(struct device *dev, struct device_driver *drv)
+{
+ struct pcie_device *pciedev;
+ struct pcie_port_service_driver *driver;
+
+ if (drv->bus != &pcie_port_bus_type || dev->bus != &pcie_port_bus_type)
+ return 0;
+
+ pciedev = to_pcie_device(dev);
+ driver = to_service_driver(drv);
+
+ if (driver->service != pciedev->service)
+ return 0;
+
+ if (driver->port_type != PCIE_ANY_PORT &&
+ driver->port_type != pci_pcie_type(pciedev->port))
+ return 0;
+
+ return 1;
+}
+
+struct bus_type pcie_port_bus_type = {
+ .name = "pci_express",
+ .match = pcie_port_bus_match,
+};
+EXPORT_SYMBOL_GPL(pcie_port_bus_type);
+#endif
+
static int __init pci_driver_init(void)
{
- return bus_register(&pci_bus_type);
+ int ret;
+
+ ret = bus_register(&pci_bus_type);
+ if (ret)
+ return ret;
+
+#ifdef CONFIG_PCIEPORTBUS
+ ret = bus_register(&pcie_port_bus_type);
+ if (ret)
+ return ret;
+#endif
+
+ return 0;
}
postcore_initcall(pci_driver_init);
diff --git a/drivers/pci/pcie/Makefile b/drivers/pci/pcie/Makefile
index 223e4c34c29a..e01c10c97b95 100644
--- a/drivers/pci/pcie/Makefile
+++ b/drivers/pci/pcie/Makefile
@@ -6,7 +6,7 @@
# Build PCI Express ASPM if needed
obj-$(CONFIG_PCIEASPM) += aspm.o
-pcieportdrv-y := portdrv_core.o portdrv_pci.o portdrv_bus.o
+pcieportdrv-y := portdrv_core.o portdrv_pci.o
pcieportdrv-$(CONFIG_ACPI) += portdrv_acpi.o
obj-$(CONFIG_PCIEPORTBUS) += pcieportdrv.o
diff --git a/drivers/pci/pcie/portdrv_bus.c b/drivers/pci/pcie/portdrv_bus.c
deleted file mode 100644
index 4969ccf6b214..000000000000
--- a/drivers/pci/pcie/portdrv_bus.c
+++ /dev/null
@@ -1,55 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * File: portdrv_bus.c
- * Purpose: PCI Express Port Bus Driver's Bus Overloading Functions
- *
- * Copyright (C) 2004 Intel
- * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
- */
-
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/pm.h>
-
-#include "portdrv.h"
-
-static int pcie_port_bus_match(struct device *dev, struct device_driver *drv);
-
-struct bus_type pcie_port_bus_type = {
- .name = "pci_express",
- .match = pcie_port_bus_match,
-};
-EXPORT_SYMBOL_GPL(pcie_port_bus_type);
-
-static int pcie_port_bus_match(struct device *dev, struct device_driver *drv)
-{
- struct pcie_device *pciedev;
- struct pcie_port_service_driver *driver;
-
- if (drv->bus != &pcie_port_bus_type || dev->bus != &pcie_port_bus_type)
- return 0;
-
- pciedev = to_pcie_device(dev);
- driver = to_service_driver(drv);
-
- if (driver->service != pciedev->service)
- return 0;
-
- if ((driver->port_type != PCIE_ANY_PORT) &&
- (driver->port_type != pci_pcie_type(pciedev->port)))
- return 0;
-
- return 1;
-}
-
-int pcie_port_bus_register(void)
-{
- return bus_register(&pcie_port_bus_type);
-}
-
-void pcie_port_bus_unregister(void)
-{
- bus_unregister(&pcie_port_bus_type);
-}
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 5d9d5305ebef..127321e17184 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -258,22 +258,11 @@ static const struct dmi_system_id pcie_portdrv_dmi_table[] __initconst = {
static int __init pcie_portdrv_init(void)
{
- int retval;
-
if (pcie_ports_disabled)
return -EACCES;
dmi_check_system(pcie_portdrv_dmi_table);
- retval = pcie_port_bus_register();
- if (retval) {
- printk(KERN_WARNING "PCIE: bus_register error: %d\n", retval);
- goto out;
- }
- retval = pci_register_driver(&pcie_portdriver);
- if (retval)
- pcie_port_bus_unregister();
- out:
- return retval;
+ return pci_register_driver(&pcie_portdriver);
}
device_initcall(pcie_portdrv_init);