Merge branch 'pci/resource'

- Rename find_resource() to find_resource_space() to make it more
  descriptive for exporting outside resource.c (Ilpo Järvinen)

- Document find_resource_space() and the resource_constraint struct it uses
  (Ilpo Järvinen)

- Add typedef resource_alignf to make it simpler to declare allocation
  constraint alignf callbacks (Ilpo Järvinen)

- Open-code the no-constraint simple alignment case to make the
  simple_align_resource() default callback unnecessary (Ilpo Järvinen)

- Export find_resource_space() because PCI bridge window allocation needs
  to learn whether there's space for a window (Ilpo Järvinen)

- Fix a double-counting problem in PCI calculate_memsize() that led to
  allocating larger windows each time a bus was removed and rescanned (Ilpo
  Järvinen)

- When we don't have space to allocate larger bridge windows, allocate
  windows only large enough for the downstream devices to prevent cases
  where a device worked originally, but not after being removed and
  re-added (Ilpo Järvinen)

* pci/resource:
  PCI: Relax bridge window tail sizing rules
  PCI: Make minimum bridge window alignment reference more obvious
  PCI: Fix resource double counting on remove & rescan
  resource: Export find_resource_space()
  resource: Handle simple alignment inside __find_resource_space()
  resource: Use typedef for alignf callback
  resource: Document find_resource_space() and resource_constraint
  resource: Rename find_resource() to find_resource_space()

diff --cc include/linux/pci.h
Simple merge