--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -223,6 +223,13 @@ config LRU_CACHE
tristate
config AVERAGE
- bool
+ bool "Averaging functions"
+ help
+ This option is provided for the case where no in-kernel-tree
+ modules require averaging functions, but a module built outside
+ the kernel tree does. Such modules that use library averaging
+ functions require Y here.
+
+ If unsure, say N.
endmenu