From: David Daney david.daney@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.daney@cavium.com Signed-off-by: Vadim Lomovtsev Vadim.Lomovtsev@caviumnetworks.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)