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/core/lwt_bpf.c b/net/core/lwt_bpf.c
index 0360045..0cfe7b0 100644
--- a/net/core/lwt_bpf.c
+++ b/net/core/lwt_bpf.c
@@ -237,7 +237,7 @@ static const struct nla_policy bpf_nl_policy[LWT_BPF_MAX + 1] = {
 	[LWT_BPF_XMIT_HEADROOM]	= { .type = NLA_U32 },
 };
 
-static int bpf_build_state(struct net_device *dev, struct nlattr *nla,
+static int bpf_build_state(struct nlattr *nla,
 			   unsigned int family, const void *cfg,
 			   struct lwtunnel_state **ts)
 {