wan: make LAPB callbacks const

This is compile tested only.
Suggested by dumpster diving in PAX.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/wan/hdlc_x25.c

@@ -134,15 +134,15 @@ static netdev_tx_t x25_xmit(struct sk_buff *skb, struct net_device *dev)
 
 static int x25_open(struct net_device *dev)
 {
-	struct lapb_register_struct cb;
 	int result;
-
-	cb.connect_confirmation = x25_connected;
-	cb.connect_indication = x25_connected;
-	cb.disconnect_confirmation = x25_disconnected;
-	cb.disconnect_indication = x25_disconnected;
-	cb.data_indication = x25_data_indication;
-	cb.data_transmit = x25_data_transmit;
+	static const struct lapb_register_struct cb = {
+		.connect_confirmation = x25_connected,
+		.connect_indication = x25_connected,
+		.disconnect_confirmation = x25_disconnected,
+		.disconnect_indication = x25_disconnected,
+		.data_indication = x25_data_indication,
+		.data_transmit = x25_data_transmit,
+	};
 
 	result = lapb_register(dev, &cb);
 	if (result != LAPB_OK)

drivers/net/wan/lapbether.c

@@ -259,14 +259,13 @@ static int lapbeth_set_mac_address(struct net_device *dev, void *addr)
 }
 
 
-static struct lapb_register_struct lapbeth_callbacks = {
+static const struct lapb_register_struct lapbeth_callbacks = {
 	.connect_confirmation    = lapbeth_connected,
 	.connect_indication      = lapbeth_connected,
 	.disconnect_confirmation = lapbeth_disconnected,
 	.disconnect_indication   = lapbeth_disconnected,
 	.data_indication         = lapbeth_data_indication,
 	.data_transmit           = lapbeth_data_transmit,
-
 };
 
 /*

drivers/net/wan/x25_asy.c

@@ -434,14 +434,13 @@ static void x25_asy_disconnected(struct net_device *dev, int reason)
 	netif_rx(skb);
 }
 
-static struct lapb_register_struct x25_asy_callbacks = {
+static const struct lapb_register_struct x25_asy_callbacks = {
 	.connect_confirmation = x25_asy_connected,
 	.connect_indication = x25_asy_connected,
 	.disconnect_confirmation = x25_asy_disconnected,
 	.disconnect_indication = x25_asy_disconnected,
 	.data_indication = x25_asy_data_indication,
 	.data_transmit = x25_asy_data_transmit,
-
 };