kconfig: add warn-unknown-symbols sanity check

[platform/kernel/linux-rpi.git] / Documentation / kbuild / kconfig.rst

diff --git a/Documentation/kbuild/kconfig.rst b/Documentation/kbuild/kconfig.rst
index 5967c79..b8327e8 100644 (file)
--- a/Documentation/kbuild/kconfig.rst
+++ b/Documentation/kbuild/kconfig.rst
@@ -54,6 +54,15 @@ KCONFIG_OVERWRITECONFIG
 If you set KCONFIG_OVERWRITECONFIG in the environment, Kconfig will not
 break symlinks when .config is a symlink to somewhere else.
 
+KCONFIG_WARN_UNKNOWN_SYMBOLS
+----------------------------
+This environment variable makes Kconfig warn about all unrecognized
+symbols in the config input.
+
+KCONFIG_WERROR
+--------------
+If set, Kconfig treats warnings as errors.
+
 `CONFIG_`
 ---------
 If you set `CONFIG_` in the environment, Kconfig will prefix all symbols
@@ -210,6 +219,10 @@ Searching in menuconfig:
        first (and in alphabetical order), then come all other symbols,
        sorted in alphabetical order.
 
+       In this menu, pressing the key in the (#) prefix will jump
+       directly to that location. You will be returned to the current
+       search results after exiting this new menu.
+
 ----------------------------------------------------------------------
 
 User interface options for 'menuconfig'
@@ -262,6 +275,10 @@ Searching in nconfig:
        F8 (SymSearch) searches the configuration symbols for the
        given string or regular expression (regex).
 
+       In the SymSearch, pressing the key in the (#) prefix will
+       jump directly to that location. You will be returned to the
+       current search results after exiting this new menu.
+
 NCONFIG_MODE
 ------------
 This mode shows all sub-menus in one large tree.