diff --git a/sys/compat/linuxkpi/common/include/linux/pm_runtime.h b/sys/compat/linuxkpi/common/include/linux/pm_runtime.h
--- a/sys/compat/linuxkpi/common/include/linux/pm_runtime.h
+++ b/sys/compat/linuxkpi/common/include/linux/pm_runtime.h
@@ -40,4 +40,10 @@
 	return 1;
 }
 
+static inline int
+pm_runtime_suspended(struct device *dev)
+{
+	return 0;
+}
+
 #endif	/* _LINUXKPI_LINUX_PM_RUNTIME_H_ */