net: fix *_DIAG_MAX constants

[ Upstream commit ae5fc98728c8bbbd6d7cab0b9781671fc4419c1b ]

Follow the common pattern and define *_DIAG_MAX like:

        [...]
        __XXX_DIAG_MAX,
};

Because everyone is used to do:

        struct nlattr *attrs[XXX_DIAG_MAX+1];

        nla_parse([...], XXX_DIAG_MAX, [...]

Reported-by: Thomas Graf <tgraf@suug.ch>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/include/linux/unix_diag.h b/include/linux/unix_diag.h
index b1d2bf16b33c92fe4f5e27aafe5d34fe87d5fede..0ff4d32a1181d5803416d01f7eb5f51aa5579f06 100644 (file)
--- a/include/linux/unix_diag.h
+++ b/include/linux/unix_diag.h
@@ -38,9 +38,11 @@ enum {
        UNIX_DIAG_RQLEN,
        UNIX_DIAG_MEMINFO,
 
-       UNIX_DIAG_MAX,
+       __UNIX_DIAG_MAX,
 };
 
+#define UNIX_DIAG_MAX (__UNIX_DIAG_MAX - 1)
+
 struct unix_diag_vfs {
        __u32   udiag_vfs_ino;
        __u32   udiag_vfs_dev;