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-rw-r--r--Documentation/kbuild/kconfig-language.rst6
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/kbuild/kconfig-language.rst b/Documentation/kbuild/kconfig-language.rst
index 71b38a7670f3..43037be96a16 100644
--- a/Documentation/kbuild/kconfig-language.rst
+++ b/Documentation/kbuild/kconfig-language.rst
@@ -70,7 +70,11 @@ applicable everywhere (see syntax).
Every menu entry can have at most one prompt, which is used to display
to the user. Optionally dependencies only for this prompt can be added
- with "if".
+ with "if". If a prompt is not present, the config option is a non-visible
+ symbol, meaning its value cannot be directly changed by the user (such as
+ altering the value in ``.config``) and the option will not appear in any
+ config menus. Its value can only be set via "default" and "select" (see
+ below).
- default value: "default" <expr> ["if" <expr>]