rtnetlink: Mark name argument of rtnl_create_link() const

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/rtnetlink.h

@@ -137,7 +137,7 @@ void rtnl_af_register(struct rtnl_af_ops *ops);
 void rtnl_af_unregister(struct rtnl_af_ops *ops);
 
 struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]);
-struct net_device *rtnl_create_link(struct net *net, char *ifname,
+struct net_device *rtnl_create_link(struct net *net, const char *ifname,
 				    unsigned char name_assign_type,
 				    const struct rtnl_link_ops *ops,
 				    struct nlattr *tb[]);

net/core/rtnetlink.c

@@ -1932,7 +1932,7 @@ int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm)
 EXPORT_SYMBOL(rtnl_configure_link);
 
 struct net_device *rtnl_create_link(struct net *net,
-	char *ifname, unsigned char name_assign_type,
+	const char *ifname, unsigned char name_assign_type,
 	const struct rtnl_link_ops *ops, struct nlattr *tb[])
 {
 	int err;