af_key: constify lookup tables

The lookup tables for minimum sizes of extensions and for the pfkey
handler functions are read only, therefore can be const.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

diff --git a/net/key/af_key.c b/net/key/af_key.c
index 4089a21..d49f676 100644 (file)
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -338,7 +338,7 @@ static int pfkey_error(const struct sadb_msg *orig, int err, struct sock *sk)
        return 0;
 }
 
-static u8 sadb_ext_min_len[] = {
+static const u8 sadb_ext_min_len[] = {
        [SADB_EXT_RESERVED]             = (u8) 0,
        [SADB_EXT_SA]                   = (u8) sizeof(struct sadb_sa),
        [SADB_EXT_LIFETIME_CURRENT]     = (u8) sizeof(struct sadb_lifetime),
@@ -2737,7 +2737,7 @@ static int pfkey_spdflush(struct sock *sk, struct sk_buff *skb, const struct sad
 
 typedef int (*pfkey_handler)(struct sock *sk, struct sk_buff *skb,
                             const struct sadb_msg *hdr, void * const *ext_hdrs);
-static pfkey_handler pfkey_funcs[SADB_MAX + 1] = {
+static const pfkey_handler pfkey_funcs[SADB_MAX + 1] = {
        [SADB_RESERVED]         = pfkey_reserved,
        [SADB_GETSPI]           = pfkey_getspi,
        [SADB_UPDATE]           = pfkey_add,