diff --git a/src/devices/nm-device-ethernet.c b/src/devices/nm-device-ethernet.c
index 9aec4ca66f..c9fd691cfd 100644
--- a/src/devices/nm-device-ethernet.c
+++ b/src/devices/nm-device-ethernet.c
@@ -305,7 +305,7 @@ nm_device_ethernet_init (NMDeviceEthernet *self)
 }
 
 static void
-setup_start (NMDevice *device, NMPlatformLink *plink)
+setup_start (NMDevice *device, const NMPlatformLink *plink)
 {
 	NM_DEVICE_CLASS (nm_device_ethernet_parent_class)->setup_start (device, plink);
 
diff --git a/src/devices/nm-device-generic.c b/src/devices/nm-device-generic.c
index 0689d71676..b6fe16be65 100644
--- a/src/devices/nm-device-generic.c
+++ b/src/devices/nm-device-generic.c
@@ -61,7 +61,7 @@ get_type_description (NMDevice *device)
 }
 
 static void
-setup_start (NMDevice *device, NMPlatformLink *plink)
+setup_start (NMDevice *device, const NMPlatformLink *plink)
 {
 	NMDeviceGeneric *self = NM_DEVICE_GENERIC (device);
 	NMDeviceGenericPrivate *priv = NM_DEVICE_GENERIC_GET_PRIVATE (self);
diff --git a/src/devices/nm-device-ip-tunnel.c b/src/devices/nm-device-ip-tunnel.c
index 0e3e53d877..e0ccd6666e 100644
--- a/src/devices/nm-device-ip-tunnel.c
+++ b/src/devices/nm-device-ip-tunnel.c
@@ -771,7 +771,7 @@ create_and_realize (NMDevice *device,
 }
 
 static void
-setup_start (NMDevice *device, NMPlatformLink *plink)
+setup_start (NMDevice *device, const NMPlatformLink *plink)
 {
 	NM_DEVICE_CLASS (nm_device_ip_tunnel_parent_class)->setup_start (device, plink);
 
diff --git a/src/devices/nm-device-macvlan.c b/src/devices/nm-device-macvlan.c
index c980fd17a2..c536fa136c 100644
--- a/src/devices/nm-device-macvlan.c
+++ b/src/devices/nm-device-macvlan.c
@@ -559,7 +559,7 @@ ip4_config_pre_commit (NMDevice *device, NMIP4Config *config)
 }
 
 static void
-setup_start (NMDevice *device, NMPlatformLink *plink)
+setup_start (NMDevice *device, const NMPlatformLink *plink)
 {
 	NM_DEVICE_CLASS (nm_device_macvlan_parent_class)->setup_start (device, plink);
 
diff --git a/src/devices/nm-device-tun.c b/src/devices/nm-device-tun.c
index 36d87e250b..045df73309 100644
--- a/src/devices/nm-device-tun.c
+++ b/src/devices/nm-device-tun.c
@@ -241,7 +241,7 @@ realize (NMDevice *device, NMPlatformLink *plink, GError **error)
 }
 
 static void
-setup_start (NMDevice *device, NMPlatformLink *plink)
+setup_start (NMDevice *device, const NMPlatformLink *plink)
 {
 	NM_DEVICE_CLASS (nm_device_tun_parent_class)->setup_start (device, plink);
 	reload_tun_properties (device);
diff --git a/src/devices/nm-device-vlan.c b/src/devices/nm-device-vlan.c
index 63938c8968..f276fa3869 100644
--- a/src/devices/nm-device-vlan.c
+++ b/src/devices/nm-device-vlan.c
@@ -148,7 +148,7 @@ nm_device_vlan_set_parent (NMDeviceVlan *self, NMDevice *parent)
 }
 
 static void
-setup_start (NMDevice *device, NMPlatformLink *plink)
+setup_start (NMDevice *device, const NMPlatformLink *plink)
 {
 	NMDeviceVlan *self = NM_DEVICE_VLAN (device);
 	NMDeviceVlanPrivate *priv = NM_DEVICE_VLAN_GET_PRIVATE (self);
diff --git a/src/devices/nm-device-vxlan.c b/src/devices/nm-device-vxlan.c
index 7eabbcdb1f..3c96414008 100644
--- a/src/devices/nm-device-vxlan.c
+++ b/src/devices/nm-device-vxlan.c
@@ -143,7 +143,7 @@ link_changed (NMDevice *device, NMPlatformLink *info)
 }
 
 static void
-setup_start (NMDevice *device, NMPlatformLink *plink)
+setup_start (NMDevice *device, const NMPlatformLink *plink)
 {
 	g_assert (plink->type == NM_LINK_TYPE_VXLAN);
 
diff --git a/src/devices/nm-device.c b/src/devices/nm-device.c
index 1c1eeed59f..ba2231768a 100644
--- a/src/devices/nm-device.c
+++ b/src/devices/nm-device.c
@@ -1780,7 +1780,7 @@ nm_device_create_and_realize (NMDevice *self,
 }
 
 static void
-update_device_from_platform_link (NMDevice *self, NMPlatformLink *plink)
+update_device_from_platform_link (NMDevice *self, const NMPlatformLink *plink)
 {
 	NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
 	const char *udi;
@@ -1836,7 +1836,7 @@ check_carrier (NMDevice *self)
 }
 
 static void
-setup_start (NMDevice *self, NMPlatformLink *plink)
+setup_start (NMDevice *self, const NMPlatformLink *plink)
 {
 	NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
 	static guint32 id = 0;
@@ -1943,7 +1943,7 @@ setup_start (NMDevice *self, NMPlatformLink *plink)
 }
 
 static void
-setup_finish (NMDevice *self, NMPlatformLink *plink)
+setup_finish (NMDevice *self, const NMPlatformLink *plink)
 {
 	if (plink) {
 		update_device_from_platform_link (self, plink);
@@ -1952,7 +1952,7 @@ setup_finish (NMDevice *self, NMPlatformLink *plink)
 }
 
 void
-nm_device_setup_finish (NMDevice *self, NMPlatformLink *plink)
+nm_device_setup_finish (NMDevice *self, const NMPlatformLink *plink)
 {
 	g_return_if_fail (!plink || link_type_compatible (self, plink->type, NULL, NULL));
 
diff --git a/src/devices/nm-device.h b/src/devices/nm-device.h
index 36f5cc68d1..655f52d1f3 100644
--- a/src/devices/nm-device.h
+++ b/src/devices/nm-device.h
@@ -197,7 +197,7 @@ typedef struct {
 	 * any tasks that affect other interfaces (like master/slave or parent/child
 	 * stuff).
 	 */
-	void        (*setup_start) (NMDevice *self, NMPlatformLink *plink);
+	void        (*setup_start) (NMDevice *self, const NMPlatformLink *plink);
 
 	/**
 	 * setup_finish():
@@ -208,7 +208,7 @@ typedef struct {
 	 * backing resource properties.  After this function finishes, the device
 	 * is ready for network connectivity.
 	 */
-	void        (*setup_finish) (NMDevice *self, NMPlatformLink *plink);
+	void        (*setup_finish) (NMDevice *self, const NMPlatformLink *plink);
 
 	/**
 	 * unrealize():
@@ -509,7 +509,7 @@ gboolean nm_device_create_and_realize (NMDevice *self,
                                        NMDevice *parent,
                                        GError **error);
 void     nm_device_setup_finish       (NMDevice *self,
-                                       NMPlatformLink *plink);
+                                       const NMPlatformLink *plink);
 gboolean nm_device_unrealize          (NMDevice *device,
                                        gboolean remove_resources,
                                        GError **error);
diff --git a/src/devices/wifi/nm-device-wifi.c b/src/devices/wifi/nm-device-wifi.c
index 6febd10b55..af8880dcfd 100644
--- a/src/devices/wifi/nm-device-wifi.c
+++ b/src/devices/wifi/nm-device-wifi.c
@@ -424,7 +424,7 @@ periodic_update_cb (gpointer user_data)
 }
 
 static void
-setup_start (NMDevice *device, NMPlatformLink *plink)
+setup_start (NMDevice *device, const NMPlatformLink *plink)
 {
 	NM_DEVICE_CLASS (nm_device_wifi_parent_class)->setup_start (device, plink);