PCI: Ignore BAR updates on virtual functions

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VF BARs are read-only zero, so updating VF BARs will not have any effect.
See the SR-IOV spec r1.1, sec 3.4.1.11.

We already ignore these updates because of 70675e0b6a ("PCI: Don't try to
restore VF BARs"); this merely restructures it slightly to make it easier
to split updates for standard and SR-IOV BARs.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Gavin Shan <gwshan@linux.vnet.ibm.com>

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This commit is contained in:

Bjorn Helgaas 2016-11-28 11:19:27 -06:00

parent f40ec3c748

commit 63880b230a

2 changed files with 2 additions and 7 deletions

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4

drivers/pci/pci.c

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5

drivers/pci/setup-res.c

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