lwtunnel: remove device arg to lwtunnel_build_state

Nothing about lwt state requires a device reference, so remove the
input argument.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
index 9d6c100..a31f47c 100644
--- a/net/ipv4/ip_tunnel_core.c
+++ b/net/ipv4/ip_tunnel_core.c
@@ -226,7 +226,7 @@ static const struct nla_policy ip_tun_policy[LWTUNNEL_IP_MAX + 1] = {
 	[LWTUNNEL_IP_FLAGS]	= { .type = NLA_U16 },
 };
 
-static int ip_tun_build_state(struct net_device *dev, struct nlattr *attr,
+static int ip_tun_build_state(struct nlattr *attr,
 			      unsigned int family, const void *cfg,
 			      struct lwtunnel_state **ts)
 {
@@ -323,7 +323,7 @@ static const struct nla_policy ip6_tun_policy[LWTUNNEL_IP6_MAX + 1] = {
 	[LWTUNNEL_IP6_FLAGS]		= { .type = NLA_U16 },
 };
 
-static int ip6_tun_build_state(struct net_device *dev, struct nlattr *attr,
+static int ip6_tun_build_state(struct nlattr *attr,
 			       unsigned int family, const void *cfg,
 			       struct lwtunnel_state **ts)
 {