net: constify struct inet6_protocol

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 678bb95b1525..af597c73ebe9 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -558,7 +558,7 @@ static const struct xfrm_type esp6_type =
         .hdr_offset     = xfrm6_find_1stfragopt,
 };
 
-static struct inet6_protocol esp6_protocol = {
+static const struct inet6_protocol esp6_protocol = {
         .handler        =       xfrm6_rcv,
         .err_handler    =       esp6_err,
         .flags          =       INET6_PROTO_NOPOLICY,