[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/esp4.c b/net/ipv4/esp4.c
index fac4f102c9f9..258d17631b4b 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -600,7 +600,7 @@ error:
         return err;
 }
 
-static struct xfrm_type esp_type =
+static const struct xfrm_type esp_type =
 {
         .description    = "ESP4",
         .owner          = THIS_MODULE,