Index: head/sys/compat/linuxkpi/common/include/linux/pci.h
===================================================================
--- head/sys/compat/linuxkpi/common/include/linux/pci.h
+++ head/sys/compat/linuxkpi/common/include/linux/pci.h
@@ -1050,4 +1050,16 @@
     const struct pci_device_id *, struct pci_dev *);
 extern int linux_pci_detach_device(struct pci_dev *);
 
+static inline int
+pci_dev_present(const struct pci_device_id *cur)
+{
+	while (cur != NULL && (cur->vendor || cur->device)) {
+		if (pci_find_device(cur->vendor, cur->device) != NULL) {
+			return (1);
+		}
+		cur++;
+	}
+	return (0);
+}
+
 #endif	/* _LINUX_PCI_H_ */