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authorRajat Jain <rajatja@google.com>2020-07-07 15:46:03 -0700
committerBjorn Helgaas <bhelgaas@google.com>2020-07-10 14:03:13 -0500
commit99b50be9d8ec9ef319cc7d5de07f4d405fac7764 (patch)
treebe02a9fb43919b4fb5ac42f8b728d48d0dc6988d /drivers/pci/of.c
parent52fbf5bdeeef415b28b8e6cdade1e48927927f60 (diff)
PCI: Treat "external-facing" devices themselves as internal
"External-facing" devices are internal devices that expose PCIe hierarchies such as Thunderbolt outside the platform [1]. Previously these internal devices were marked as "untrusted" the same as devices downstream from them. Use the ACPI or DT information to identify external-facing devices, but only mark the devices *downstream* from them as "untrusted" [2]. The external-facing device itself is no longer marked as untrusted. [1] https://docs.microsoft.com/en-us/windows-hardware/drivers/pci/dsd-for-pcie-root-ports#identifying-externally-exposed-pcie-root-ports [2] https://lore.kernel.org/linux-pci/20200610230906.GA1528594@bjorn-Precision-5520/ Link: https://lore.kernel.org/r/20200707224604.3737893-3-rajatja@google.com Signed-off-by: Rajat Jain <rajatja@google.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/of.c')
-rw-r--r--drivers/pci/of.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/of.c b/drivers/pci/of.c
index 27839cd2459f..22727fc9558d 100644
--- a/drivers/pci/of.c
+++ b/drivers/pci/of.c
@@ -42,7 +42,7 @@ void pci_set_bus_of_node(struct pci_bus *bus)
} else {
node = of_node_get(bus->self->dev.of_node);
if (node && of_property_read_bool(node, "external-facing"))
- bus->self->untrusted = true;
+ bus->self->external_facing = true;
}
bus->dev.of_node = node;