From: David Daney <david.da...@cavium.com>
... and use is to force only_one_child() to return true.
Needed because the ThunderX PCIe RC cannot be identified by existing methods.
Signed-off-by: David Daney <david.da...@cavium.com>
---
drivers/pci/probe.c | 2 ++
include/linux/pci.h | 1 +
2 files changed, 3 insertions(+)
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index cefd636..11ec2e7 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1643,6 +1643,8 @@ static int only_one_child(struct pci_bus *bus)
{
struct pci_dev *parent = bus->self;
+ if (bus->is_pcierc)
+ return 1;
if (!parent || !pci_is_pcie(parent))
return 0;
if (pci_pcie_type(parent) == PCI_EXP_TYPE_ROOT_PORT)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 8a0321a..1f1ce73 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -473,6 +473,7 @@ struct pci_bus {
struct bin_attribute *legacy_io; /* legacy I/O for this bus */
struct bin_attribute *legacy_mem; /* legacy mem */
unsigned int is_added:1;
+ unsigned int is_pcierc:1;
};
#define to_pci_bus(n) container_of(n, struct pci_bus, dev)
--
1.9.1
--
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