Re: [PATCH v4 10/18] PCI: Account for ACS egress control in isolation checks

pci_acs_enabled() treats P2P Request Redirect as effective whenever its
control bit is set. PCIe r7.0, sec 6.12.3, table 6-11 lets an enabled
Egress Control Vector override it: a clear vector bit routes the request
directly.

This may well all be correct, but I'd prefer not to touch grouping in
this series working on p2pdma.. The grouping logic is already not
doing a good job with the spec and we can't change it because it
creates regression.

-- 
Jason