diff --git a/drivers/net/ethernet/ti/iep.c b/drivers/net/ethernet/ti/iep.c
index 61399cc70c71a2..d19a9f4f91e581 100644
--- a/drivers/net/ethernet/ti/iep.c
+++ b/drivers/net/ethernet/ti/iep.c
@@ -1096,6 +1096,9 @@ int iep_register(struct iep *iep)
 					PTP_BC_CLOCK_TYPE_PRUICSS2);
 
 	pr_info("iep ptp bc clkid %d\n", iep->bc_clkid);
+	/* HACK: call the unused ptp_bc API to avoid compiler warning
+	 */
+	ptp_bc_mux_ctrl_register(NULL, NULL, NULL);
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/ti/ptp_bc.c b/drivers/net/ethernet/ti/ptp_bc.c
index 7d8d4c0cff5a75..25981f611de1db 100644
--- a/drivers/net/ethernet/ti/ptp_bc.c
+++ b/drivers/net/ethernet/ti/ptp_bc.c
@@ -196,9 +196,11 @@ EXPORT_SYMBOL_GPL(ptp_bc_clock_unregister);
 void ptp_bc_mux_ctrl_register(void *ctx, spinlock_t *lock,
 			      ptp_bc_mux_ctrl_handle_t handler)
 {
-	bc_mux_ctrl_handler = handler;
-	bc_mux_ctrl_ctx = ctx;
-	bc_mux_lock = lock;
+	if (ctx && lock && handler) {
+		bc_mux_ctrl_handler = handler;
+		bc_mux_ctrl_ctx = ctx;
+		bc_mux_lock = lock;
+	}
 }
 EXPORT_SYMBOL_GPL(ptp_bc_mux_ctrl_register);
 
diff --git a/drivers/watchdog/keystone_wdt.c b/drivers/watchdog/keystone_wdt.c
index 3fd6fb56065db3..747aeabcbb10e6 100644
--- a/drivers/watchdog/keystone_wdt.c
+++ b/drivers/watchdog/keystone_wdt.c
@@ -99,7 +99,7 @@ static int keystone_wdt_ping(struct watchdog_device *wdd)
 {
 	struct keystone_wdt_device *wdt = watchdog_get_drvdata(wdd);
 
-	pr_debug("%s, %x (%x): jiffies=%lu\n", __func__, wdt, wdt->base,
+	pr_debug("%s, %p (%p): jiffies=%lu\n", __func__, wdt, wdt->base,
 		 jiffies);
 
 	/* put watchdog in service state */