gtp: constify nla_policy

The netlink policy structure can be constant like other
drivers.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index ec629a7..7a14517 100644 (file)
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -1255,7 +1255,7 @@ out:
        return skb->len;
 }
 
-static struct nla_policy gtp_genl_policy[GTPA_MAX + 1] = {
+static const struct nla_policy gtp_genl_policy[GTPA_MAX + 1] = {
        [GTPA_LINK]             = { .type = NLA_U32, },
        [GTPA_VERSION]          = { .type = NLA_U32, },
        [GTPA_TID]              = { .type = NLA_U64, },