[CIFS] CIFS_DEBUG2 depends on CIFS

Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/Kconfig b/fs/Kconfig
index 00aa3d5..7db0574 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -1791,6 +1791,7 @@
 
 config CIFS_DEBUG2
 	bool "Enable additional CIFS debugging routines"
+	depends on CIFS
 	help
 	   Enabling this option adds a few more debugging routines
 	   to the cifs code which slightly increases the size of