Messages in this thread Patch in this message |  | | From | Masami Hiramatsu <> | Subject | [PATCH 4/4] docs: bootconfig: Update for mixing value and subkeys | Date | Sun, 16 May 2021 23:55:58 +0900 |
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Update document for the mixing value and subkeys on a key.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> --- 0 files changed
diff --git a/Documentation/admin-guide/bootconfig.rst b/Documentation/admin-guide/bootconfig.rst index 452b7dcd7f6b..37bdae273b18 100644 --- a/Documentation/admin-guide/bootconfig.rst +++ b/Documentation/admin-guide/bootconfig.rst @@ -89,13 +89,33 @@ you can use ``+=`` operator. For example:: In this case, the key ``foo`` has ``bar``, ``baz`` and ``qux``. -However, a sub-key and a value can not co-exist under a parent key. -For example, following config is NOT allowed.:: +Moreover, sub-keys and a value can co-exist under a parent key. +For example, following config is allowed.:: foo = value1 - foo.bar = value2 # !ERROR! subkey "bar" and value "value1" can NOT co-exist - foo.bar := value2 # !ERROR! even with the override operator, this is NOT allowed. + foo.bar = value2 + foo := value3 # This will update foo's value. +Note, since there is no syntax to add raw value in the structured +key, you have to define it outside of the brace. For example:: + + foo.bar = value1 + foo.bar { + baz = value2 + qux = value3 + } + +Also, the order of the value node under a key is fixed. If there +are a value and subkeys, the value is always the first child node +of the key. Thus if user specifies subkeys first, e.g.:: + + foo.bar = value1 + foo = value2 + +In the program (and /proc/bootconfig), it will be shown as below:: + + foo = value2 + foo.bar = value1 Comments --------
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