PCI: call final fixups hot-added devices

Final fixups are currently applied only at boot-time by
pci_apply_final_quirks(), which is an fs_initcall().  Hot-added devices
don't get these fixups, so they may not be completely initialized.

This patch makes us run final fixups for hot-added devices in
pci_bus_add_device() just before the new device becomes eligible for driver
binding.

This patch keeps the fs_initcall() for devices present at boot because we
do resource assignment between pci_bus_add_device and the fs_initcall(),
and we don't want to break any fixups that depend on that assignment.  This
is a design issue that may be addressed in the future -- any resource
assignment should be done *before* device_add().

[bhelgaas: changelog]
Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 4ce5ef2f2826..b511bd4e3f7c 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -164,6 +164,10 @@ pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
 int pci_bus_add_device(struct pci_dev *dev)
 {
         int retval;
+        extern bool pci_fixup_final_inited;
+
+        if (pci_fixup_final_inited)
+                pci_fixup_device(pci_fixup_final, dev);
         retval = device_add(&dev->dev);
         if (retval)
                 return retval;