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PCI: Add arch_can_pci_mmap_io() on architectures which can mmap() I/O space

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This is relatively esoteric, and knowing that we don't have it makes life
easier in some cases rather than just an eventual -EINVAL from
pci_mmap_page_range().

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
David Woodhouse 2017-04-12 13:25:56 +01:00 • committed by Bjorn Helgaas
commit e854d8b2a8
8 changed files with 26 additions and 12 deletions
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