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| author | Yinghai Lu <yinghai@kernel.org> | 2013-05-07 22:35:44 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-05-07 22:35:44 +0200 |
| commit | e253aaf0af51c1e4dc7dd3b26ea8e666bf9a2d8d (patch) | |
| tree | 1e108b6df63cd51372246fdc2281cffaa548b6a1 /drivers/pci/bus.c | |
| parent | x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0 (diff) | |
| download | linux-e253aaf0af51c1e4dc7dd3b26ea8e666bf9a2d8d.tar.xz linux-e253aaf0af51c1e4dc7dd3b26ea8e666bf9a2d8d.zip | |
PCI: Delay final fixups until resources are assigned
Commit 4f535093cf "PCI: Put pci_dev in device tree as early as possible"
moved final fixups from pci_bus_add_device() to pci_device_add(). But
pci_device_add() happens before resource assignment, so BARs may not be
valid yet.
Typical flow for hot-add:
pciehp_configure_device
pci_scan_slot
pci_scan_single_device
pci_device_add
pci_fixup_device(pci_fixup_final, dev) # previous location
# resource assignment happens here
pci_bus_add_devices
pci_bus_add_device
pci_fixup_device(pci_fixup_final, dev) # new location
[bhelgaas: changelog, move fixups to pci_bus_add_device()]
Reference: https://lkml.kernel.org/r/20130415182614.GB9224@xanatos
Reported-by: David Bulkow <David.Bulkow@stratus.com>
Tested-by: David Bulkow <David.Bulkow@stratus.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org # v3.9+
Diffstat (limited to 'drivers/pci/bus.c')
| -rw-r--r-- | drivers/pci/bus.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 748f8f3e9ff5..32e66a6f12d9 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -174,6 +174,7 @@ int pci_bus_add_device(struct pci_dev *dev) * Can not put in pci_device_add yet because resources * are not assigned yet for some devices. */ + pci_fixup_device(pci_fixup_final, dev); pci_create_sysfs_dev_files(dev); dev->match_driver = true; |