net: inet_diag_handler structs can be const

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/tcp_diag.c b/net/ipv4/tcp_diag.c
index 838d491..fcbcd4f 100644
--- a/net/ipv4/tcp_diag.c
+++ b/net/ipv4/tcp_diag.c
@@ -34,7 +34,7 @@
 		tcp_get_info(sk, info);
 }
 
-static struct inet_diag_handler tcp_diag_handler = {
+static const struct inet_diag_handler tcp_diag_handler = {
 	.idiag_hashinfo	 = &tcp_hashinfo,
 	.idiag_get_info	 = tcp_diag_get_info,
 	.idiag_type	 = TCPDIAG_GETSOCK,