Merge branches 'pci/enumeration', 'pci/hotplug', 'pci/misc', 'pci/numa' and 'pci...

Merge branches 'pci/enumeration', 'pci/hotplug', 'pci/misc', 'pci/numa' and 'pci/virtualization' into next

* pci/enumeration:
  PCI: Remove fixed parameter in pci_iov_resource_bar()
  PCI: Add informational printk for invalid BARs
  PCI: Shrink decoding-disabled window while sizing BARs
  PCI: Restore detection of read-only BARs

* pci/hotplug:
  PCI: Remove unused and broken to_hotplug_slot()

* pci/misc:
  PCI: Make FLR and AF FLR reset warning messages different
  PCI: Simplify if-return sequences
  PCI: Delete unnecessary NULL pointer checks

* pci/numa:
  PCI: Allow numa_node override via sysfs

* pci/virtualization:
  xen/pcifront: Process failure for pcifront_(re)scan_root()