diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h
index b8d4f61f14be4fd65c55b92f0b8dc2882c865f59..22ada6de9057947a4ab909519c1d0ab92bbf2f03 100644
--- a/drivers/ptp/ptp_private.h
+++ b/drivers/ptp/ptp_private.h
@@ -15,6 +15,7 @@
 #include <linux/ptp_clock.h>
 #include <linux/ptp_clock_kernel.h>
 #include <linux/time.h>
+#include <linux/kabi.h>
 
 #define PTP_MAX_TIMESTAMPS 128
 #define PTP_BUF_TIMESTAMPS 30
@@ -53,6 +54,10 @@ struct ptp_clock {
 	struct mutex n_vclocks_mux; /* protect concurrent n_vclocks access */
 	bool is_virtual_clock;
 	bool has_cycles;
+	KABI_RESERVE(1)
+	KABI_RESERVE(2)
+	KABI_RESERVE(3)
+	KABI_RESERVE(4)
 };
 
 #define info_to_vclock(d) container_of((d), struct ptp_vclock, info)