From: Darren Salt <linux@youmustbejoking.demon.co.uk>
Subject: CIFS ACL support needs CONFIG_KEYS, so depend on it

Build fails if CONFIG_KEYS is not selected.

Signed-off-by: Darren Salt <linux@youmustbejoking.demon.co.uk>

--- a/fs/cifs/Kconfig.base	2011-05-30 01:43:36.000000000 +0100
+++ b/fs/cifs/Kconfig	2011-05-31 17:14:10.435870808 +0100
@@ -148,7 +148,7 @@
 
 config CIFS_ACL
 	  bool "Provide CIFS ACL support (EXPERIMENTAL)"
-	  depends on EXPERIMENTAL && CIFS_XATTR
+	  depends on EXPERIMENTAL && CIFS_XATTR && KEYS
 	  help
 	    Allows to fetch CIFS/NTFS ACL from the server.  The DACL blob
 	    is handed over to the application/caller.