diff --git a/include/linux/wwan.h b/include/linux/wwan.h
index 7c2d5db089a1..e3ea3c12c588 100644
--- a/include/linux/wwan.h
+++ b/include/linux/wwan.h
@@ -61,6 +61,9 @@ struct wwan_port_ops {
 	int (*tx_blocking)(struct wwan_port *port, struct sk_buff *skb);
 	__poll_t (*tx_poll)(struct wwan_port *port, struct file *filp,
 			    poll_table *wait);
+
+	ANDROID_KABI_RESERVE(1);
+	ANDROID_KABI_RESERVE(2);
 };
 
 /**