[SCTP] net/sctp/auth.c: make 3 functions static

This patch makes three needlessly global functions static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/sctp/auth.h

@@ -88,7 +88,6 @@ static inline void sctp_auth_key_hold(struct sctp_auth_bytes *key)
 
 void sctp_auth_key_put(struct sctp_auth_bytes *key);
 struct sctp_shared_key *sctp_auth_shkey_create(__u16 key_id, gfp_t gfp);
-void sctp_auth_shkey_free(struct sctp_shared_key *sh_key);
 void sctp_auth_destroy_keys(struct list_head *keys);
 int sctp_auth_asoc_init_active_key(struct sctp_association *asoc, gfp_t gfp);
 struct sctp_shared_key *sctp_auth_get_shkey(

net/sctp/auth.c

@@ -107,7 +107,7 @@ struct sctp_shared_key *sctp_auth_shkey_create(__u16 key_id, gfp_t gfp)
 }
 
 /* Free the shared key stucture */
-void sctp_auth_shkey_free(struct sctp_shared_key *sh_key)
+static void sctp_auth_shkey_free(struct sctp_shared_key *sh_key)
 {
 	BUG_ON(!list_empty(&sh_key->key_list));
 	sctp_auth_key_put(sh_key->key);
@@ -220,7 +220,7 @@ static struct sctp_auth_bytes *sctp_auth_make_key_vector(
 
 
 /* Make a key vector based on our local parameters */
-struct sctp_auth_bytes *sctp_auth_make_local_vector(
+static struct sctp_auth_bytes *sctp_auth_make_local_vector(
 				    const struct sctp_association *asoc,
 				    gfp_t gfp)
 {
@@ -232,7 +232,7 @@ struct sctp_auth_bytes *sctp_auth_make_local_vector(
 }
 
 /* Make a key vector based on peer's parameters */
-struct sctp_auth_bytes *sctp_auth_make_peer_vector(
+static struct sctp_auth_bytes *sctp_auth_make_peer_vector(
 				    const struct sctp_association *asoc,
 				    gfp_t gfp)
 {