diff --git a/Documentation/kbuild/modules.rst b/Documentation/kbuild/modules.rst
index 1014a275a7e114d8dfbcff469d3864d6986abd58..268ebbd2ab74095913b36dfc4d5e1e62c08af1c5 100644
--- a/Documentation/kbuild/modules.rst
+++ b/Documentation/kbuild/modules.rst
@@ -521,9 +521,3 @@ build.
 
 		ext2-y := balloc.o bitmap.o dir.o
 		ext2-$(CONFIG_EXT2_FS_XATTR) += xattr.o
-
-	External modules have traditionally used "grep" to check for
-	specific `CONFIG_` settings directly in .config. This usage is
-	broken. As introduced before, external modules should use
-	kbuild for building and can therefore use the same methods as
-	in-tree modules when testing for `CONFIG_` definitions.