Hans Petter Selasky c51613866f Ensure pci_channel_offline() actually queries the PCI register space,
and not only the software cache of that register.  Else
pci_channel_offline() won't detect that the PCI device is gone when
using the LinuxKPI.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2020-06-05 08:12:08 +00:00
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