[XFRM]: constify 'struct xfrm_type'

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/xfrm4_tunnel.c b/net/ipv4/xfrm4_tunnel.c
index 326845195620..87f77e412ba2 100644
--- a/net/ipv4/xfrm4_tunnel.c
+++ b/net/ipv4/xfrm4_tunnel.c
@@ -38,7 +38,7 @@ static void ipip_destroy(struct xfrm_state *x)
 {
 }
 
-static struct xfrm_type ipip_type = {
+static const struct xfrm_type ipip_type = {
         .description    = "IPIP",
         .owner          = THIS_MODULE,
         .proto          = IPPROTO_IPIP,