1 files changed, 13 insertions, 0 deletions

diff --git a/include/linux/pci.h b/include/linux/pci.h
index aab57b4abe7f..f2a5946ea0bf 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -477,6 +477,19 @@ static inline bool pci_is_root_bus(struct pci_bus *pbus)
         return !(pbus->parent);
 }
 
+/**
+ * pci_is_bridge - check if the PCI device is a bridge
+ * @dev: PCI device
+ *
+ * Return true if the PCI device is bridge whether it has subordinate
+ * or not.
+ */
+static inline bool pci_is_bridge(struct pci_dev *dev)
+{
+        return dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
+                dev->hdr_type == PCI_HEADER_TYPE_CARDBUS;
+}
+
 static inline struct pci_dev *pci_upstream_bridge(struct pci_dev *dev)
 {
         dev = pci_physfn(dev);