diff --git a/sys/compat/linuxkpi/common/include/linux/io-mapping.h b/sys/compat/linuxkpi/common/include/linux/io-mapping.h
--- a/sys/compat/linuxkpi/common/include/linux/io-mapping.h
+++ b/sys/compat/linuxkpi/common/include/linux/io-mapping.h
@@ -93,6 +93,18 @@
 {
 }
 
+static inline void *
+io_mapping_map_local_wc(struct io_mapping *mapping, unsigned long offset)
+{
+
+	return (io_mapping_map_atomic_wc(mapping, offset));
+}
+
+static inline void
+io_mapping_unmap_local(void *vaddr __unused)
+{
+}
+
 static inline void *
 io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset,
     unsigned long size)