@@ -334,6 +334,8 @@ common_init_pci(void)
bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops,
hose, &resources);
+ if (bus)
+ pci_bus_add_devices(bus);
hose->bus = bus;
hose->need_domain_info = need_domain_info;
next_busno = bus->busn_res.end + 1;
@@ -316,6 +316,7 @@ void pcibios_fixup_bus(struct pci_bus *bus)
int __init pcibios_init(void)
{
+ struct pci_bus *bus;
struct pci_ops *dir = NULL;
LIST_HEAD(resources);
@@ -383,12 +384,13 @@ int __init pcibios_init(void)
printk("PCI: Probing PCI hardware\n");
pci_add_resource(&resources, &pci_ioport_resource);
pci_add_resource(&resources, &pci_iomem_resource);
- pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources);
+ bus = pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources);
pcibios_irq_init();
pcibios_fixup_irqs();
pcibios_resource_survey();
-
+ if (bus)
+ pci_bus_add_devices(bus);
return 0;
}
@@ -272,6 +272,7 @@ sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
kfree(res);
kfree(controller);
}
+ pci_bus_add_devices(bus);
}
/*
@@ -1351,6 +1351,7 @@ static void pcibios_scan_phb(struct pci_controller *hose)
hose->bus = bus;
hose->last_busno = bus->busn_res.end;
+ pci_bus_add_devices(bus);
}
static int __init pcibios_init(void)
@@ -114,6 +114,7 @@ static void pcibios_scanbus(struct pci_controller *hose)
pci_bus_size_bridges(bus);
pci_bus_assign_resources(bus);
}
+ pci_bus_add_devices(bus);
}
}
@@ -345,6 +345,7 @@ void pcibios_fixup_bus(struct pci_bus *bus)
*/
static int __init pcibios_init(void)
{
+ struct pci_bus *bus;
resource_size_t io_offset, mem_offset;
LIST_HEAD(resources);
@@ -376,11 +377,13 @@ static int __init pcibios_init(void)
pci_add_resource_offset(&resources, &pci_ioport_resource, io_offset);
pci_add_resource_offset(&resources, &pci_iomem_resource, mem_offset);
- pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL, &resources);
+ bus = pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL, &resources);
pcibios_irq_init();
pcibios_fixup_irqs();
pcibios_resource_survey();
+ if (bus)
+ pci_bus_add_devices(bus);
return 0;
}
@@ -756,7 +756,7 @@ static int zpci_scan_bus(struct zpci_dev *zdev)
zpci_cleanup_bus_resources(zdev);
return -EIO;
}
-
+ pci_bus_add_devices(zdev->bus);
zdev->bus->max_bus_speed = zdev->max_bus_speed;
return 0;
}
@@ -69,6 +69,7 @@ static void pcibios_scanbus(struct pci_channel *hose)
pci_bus_size_bridges(bus);
pci_bus_assign_resources(bus);
+ pci_bus_add_devices(bus);
} else {
pci_free_resource_list(&resources);
}
@@ -40,6 +40,7 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info)
/* Assign devices with resources */
pci_assign_unassigned_resources();
+ pci_bus_add_devices(root_bus);
} else {
pci_free_resource_list(&resources);
}
@@ -339,6 +339,8 @@ int __init pcibios_init(void)
struct pci_bus *next_bus;
struct pci_dev *dev;
+ pci_bus_add_devices(root_bus);
+
list_for_each_entry(dev, &root_bus->devices, bus_list) {
/*
* Find the PCI host controller, ie. the 1st
@@ -916,6 +916,8 @@ int __init pcibios_init(void)
/* Configure the max_payload_size values for this domain. */
fixup_read_and_payload_sizes(controller);
+ pci_bus_add_devices(root_bus);
+
/* Alloc a PIO region for PCI memory access for each RC port. */
ret = gxio_trio_alloc_pio_regions(trio_context, 1, 0, 0);
if (ret < 0) {
@@ -475,6 +475,7 @@ void pcibios_scan_root(int busnum)
pci_free_resource_list(&resources);
kfree(sd);
}
+ pci_bus_add_devices(bus);
}
void __init pcibios_set_cache_line_size(void)
@@ -185,6 +185,8 @@ static int __init pcibios_init(void)
pci_controller_apertures(pci_ctrl, &resources);
bus = pci_scan_root_bus(NULL, pci_ctrl->first_busno,
pci_ctrl->ops, pci_ctrl, &resources);
+ if (bus)
+ pci_bus_add_devices(bus);
pci_ctrl->bus = bus;
pci_ctrl->last_busno = bus->busn_res.end;
if (next_busno <= pci_ctrl->last_busno)
@@ -2087,7 +2087,6 @@ struct pci_bus *pci_scan_root_bus(struct device *parent, int bus,
if (!found)
pci_bus_update_busn_res_end(b, max);
- pci_bus_add_devices(b);
return b;
}
EXPORT_SYMBOL(pci_scan_root_bus);
Just like pci_scan_bus(), we also should rip out pci_bus_add_devices() from pci_scan_root_bus(). Lots platforms first call pci_scan_root_bus(), but after that, they call pci_bus_size_bridges() and pci_bus_assign_resources(). Place pci_bus_add_devices() in pci_scan_root_bus() hurts PCI scan logic. For arm hw_pci->scan() functions which call pci_scan_root_bus(), it's no need to change anything, because pci_bus_add_devices() will be called later in pci_common_init_dev(). Signed-off-by: Yijing Wang <wangyijing@huawei.com> CC: David Howells <dhowells@redhat.com> CC: Tony Luck <tony.luck@intel.com> CC: Michal Simek <monstr@monstr.eu> CC: Ralf Baechle <ralf@linux-mips.org> CC: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> CC: Sebastian Ott <sebott@linux.vnet.ibm.com> CC: Thomas Gleixner <tglx@linutronix.de> CC: Chris Metcalf <cmetcalf@ezchip.com> CC: Chris Zankel <chris@zankel.net> CC: linux-alpha@vger.kernel.org CC: linux-kernel@vger.kernel.org CC: linux-mips@linux-mips.org CC: linux-am33-list@redhat.com CC: linux-s390@vger.kernel.org CC: linux-sh@vger.kernel.org CC: sparclinux@vger.kernel.org CC: linux-pci@vger.kernel.org CC: linux-xtensa@linux-xtensa.org --- arch/alpha/kernel/pci.c | 2 ++ arch/frv/mb93090-mb00/pci-vdk.c | 6 ++++-- arch/ia64/sn/kernel/io_init.c | 1 + arch/microblaze/pci/pci-common.c | 1 + arch/mips/pci/pci.c | 1 + arch/mn10300/unit-asb2305/pci.c | 5 ++++- arch/s390/pci/pci.c | 2 +- arch/sh/drivers/pci/pci.c | 1 + arch/sparc/kernel/leon_pci.c | 1 + arch/tile/kernel/pci.c | 2 ++ arch/tile/kernel/pci_gx.c | 2 ++ arch/x86/pci/common.c | 1 + arch/xtensa/kernel/pci.c | 2 ++ drivers/pci/probe.c | 1 - 14 files changed, 23 insertions(+), 5 deletions(-)